TWI294511B - - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator which is provided with a door opening device for opening a storage compartment door by a pushing operation of a pressing member. [Prior Art] In recent years, with the diversification of dietary life, the storage capacity of refrigerators tends to be larger, especially in household refrigerators, where the internal volume exceeds 400.

The level of liters has become mainstream, and the height or width of the refrigerator body has also increased. σ 丨 者 该 该 该 该 该 该 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽 尽The depth dimension and thus the storage of the R σσ gate itself are also large, so it is necessary to have a problem of inconvenience to a weaker female or elderly person with a large force. As a solution to the above problems, in recent years, a refrigerator has been put on the market = as a product that does not cause inconvenience when the door is opened is evaluated (10) For example, the patent document f1) 'The refrigerator has a handle switch operation by a user, positioning the tip The electromagnetic side opening device that pushes the body side to push the door thereby opening the door. H such a door opening device 'prepared as a door open switch set in front of the door' wire tube energized for a specific time, so that the pressing member pushes κ from the initial position to push and open the door 'and cut off the power at a certain time = cite the dusty force of the elastic to be pulled' and return to 98529.doc 1294511 and 'consider the following structure: In the left and right split refrigerators, use the single door opening device to open the left and right doors at the same time Or open the door to the left and right doors one by one. (Patent Document 2) [Patent Document 1] Japanese Laid-Open Patent Publication No. 2001-59673 (Patent Document 2) Japanese Patent Laid-Open No. 2003-83673 (Problem to be Solved by the Invention) However, the above Patent Document 1 Since the opening device is configured to supply a predetermined voltage to the electromagnetic solenoid via a specific time, if the closing time of the corresponding door, the load of the storage box, etc., the force required to open the door changes, there is a lower Disadvantages: due to the weak opening of the door, the door cannot be fully opened, or on the other hand, the food placed in the storage box will fall due to excessive strength. Further, depending on the specifications of the refrigerator, for example, the load capacity of the storage case provided in the door or the cooling in the refrigerator, the force required to open the door changes, but the door opening devices of the above-mentioned Patent Documents 1 and 2 are preset due to the specific time. The repaired voltage is supplied to the electromagnetic solenoid, so there is a defect that the door cannot be opened sufficiently due to the weak opening of the door, or on the other hand, the food placed in the storage box may fall due to excessive strength. . Further, in the case of the left-right split type refrigerator, in the case where the one side is opened or the type of the rotation: the partition is used, although the force required to open the door changes, the driving method of the door opening device has not been discussed before. And ': left and right side-opening refrigerators can open the left and right doors one by one, ΐ t single-sided operation of the door open switch, but according to the different conditions of the user, there will be % on one side of the door opening device is in the power-on period, operation Others 98529.doc 1294511 Open the door or at the same time it is operated. In this case, a commercial power source for an appliance such as a refrigerator, an oven, a rice cooker, or the like, which is generally used to prevent an excessive current from flowing, is in a state of being in an integrated state, and therefore, when using other electrical appliances, there is a possibility that the two may be When the door opening device is energized, the circuit breaker can be activated. Such verification has not been carried out previously, and therefore it is necessary to investigate the action of the door opening device according to the user's facts, and to open the door to the side of the power supply or operate the other side of the door switch at the same time. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a refrigerator which can optimally open a door regardless of the load state of the storage case on the refrigerator door or the like. Further, the present invention has been made in view of the above problems, and an object thereof is to provide a refrigerator which can be optimally opened automatically regardless of the use condition of the refrigerator or the like. Further, the present invention has been made in view of the above problems, and an object of the present invention is to provide a refrigerator in which a door opening and closing switch is operated while a door device is in a state in which the door device is energized, or In the case of the same operation, there is no need to have a large current flow and it is reliable. [Invention] The invention is characterized in that the switch is provided with a switch that is freely disposed in the opening of the main body storage compartment; , a push-opening device for pushing the door to open the door by pushing the pressing member; and a door opening switch for driving the driving signal for driving the door opening device by the user; and detecting the switch of the door and outputting the door a door switch for the signal and the door closing signal; if the drive signal is output from the above-mentioned door open switch in the state in which the door switch outputs the relevant door signal in the state of the door switch output, the power supply to the door opening device is started, and after the door opening signal is output by the above door switch The energization continues until a certain time has elapsed. The refrigerator of the present invention is characterized in that: a left-hand side left door and a right door which are provided in a front-opening portion of the front surface of the main body storage compartment, and a left-hand door opening device and a right-opening door which are opened by pushing the left and right doors respectively a left opening switch and a right opening switch for outputting a driving signal to energize respective left and right opening devices by a user operation; and a load detecting mechanism for detecting a load applied to the left and right doors when the door is opened; When the load detecting means determines that the load at the time of opening the door is light, the door opening force of the left and right door opening device is reduced to open the door. A refrigerator according to the present invention is characterized in that: a left-hand side open door and a right door which are provided in a front-opening portion of the front surface of the main body storage compartment, and a left-hand door opening device and a right-opening door which are opened by pushing the left and right doors respectively #门装置; and the left open switch and the right open switch that output the drive signal to energize the left and right door openers by the operation of the user; when the other open switch is operated during the opening of the door opener' After the opening of the door opening device is completed, the other door opening device is energized. [Effects of the Invention] According to the above invention, it is necessary to energize the door until the door opening signal is outputted by the door switch until the magnet pad required for the door opening is changed in accordance with the load state of the refrigerator door. Door opening device, again, 98529.doc 1294511 After opening the door for the power required to open the door, the door can be opened most effectively by cutting off the power supply to the door opening device after a certain time of power-on. According to the above invention, since the detection of the load at the time of opening the door according to the use condition of the refrigerator is appropriate, the door opening force of the door opening device can be changed, so that the door can be opened most suitably. According to the above invention, in the refrigerator of the left and right split doors, it is possible to provide a refrigerator which does not flow excessively when the opening switch of the other side is operated or is operated at the same time when one of the door opening devices is energized. . [Embodiment] Hereinafter, embodiments of the present invention will be described. Fig. 5 is a perspective view showing the refrigerator of the present invention, and Fig. 6 is a view showing a state in which the refrigerator of Fig. 5 is opened. In the refrigerator main body 1 which is configured as a heat insulating box of a well-known structure, the refrigerating compartment 2, the vegetable compartment 3, and the ice making compartment 4 are provided in order from the top, and the internal temperature can be switched to plural. In the switching chamber 5 and the freezing chamber 6, the φ ice chamber 4 and the switching chamber 5 are arranged side by side. The front door opening portion of the refrigerating chamber 2 is provided with left and right doors 2〇a and 2b, which constitute so-called left and right split doors, respectively, at the left and right ends of the refrigerating chamber 2, and the vegetable compartment 3, the ice making chamber 4, the switching chamber 5, and Each of the front sides of the freezing compartments 6 is provided with drawer doors 3a, such as, and the like, which are connected to respective storage containers (not shown). The magnet pads 2U and 21b are attached to the peripheral portion of the left and right doors 20a and 20b on the back side, and the left and right doors 2A and 20b are configured to be attracted to the flange portion of the refrigerator by the magnet pads 21a and 21b. ", and it is kept in a closed state. Further, although not shown, a magnet spacer is attached to the edge of the back surface of the other doors 3a, 4a, Sa, and 6a on the back side of 98929.doc -10- 1294511. The inner sides of the linings 21a and 21b are respectively formed with a pair of upper and lower extending bead portions 22a and 22b, and the bead portions 22a and 22b are provided with storage boxes 23a and 23b for storing food. Further, opposite to the right door 20b The bead portion 22a of the left door 20a is provided with a rotary partitioning plate 25 which is attached to the magnet pads 21a and 2b of the left and right doors in the closed state to close the gap between the doors. The plate 2 5 is set to rotate by the fact that the tip lb provided on the upper portion of the body slides in the groove formed on the upper surface of the rotary partition plate 25 according to the switching operation of the left door 20a. The front portions of the left and right doors 20a, 20b Installed with a left open door switch 27a and a right open door switch 27b, if the left open door is pushed The closing 27a outputs a door opening signal for opening the left door 2〇a, and if the right door opening switch 27b is pushed, it outputs a door opening signal for opening the right door 20b. Further, if the left door opening switch 27a is pushed, the opening of the right door 20b can also be output. The door opening signal is specifically configured as a mechanical switch having a normally open type micro switch that can be turned on by pressing the left and right door open switches 27a and 27b k. Further, optical properties using the photointerrupter may be included. A switch or a magnetic switch or the like. As shown in FIG. 7 which is a plan view showing the refrigerator 1 when the left door 20a is opened, 'the left and right side walls of the refrigerating compartment 2 are provided with doors for detecting the respective switching states of the left and right doors 2〇a, 2〇b. The switches 26a and 26b are configured such that when the button 26 is pressed by the bead portions 22a and 22b, the doors 2a and 20b are closed and the door closing signal is turned off (off state). If the doors 2〇a, 2〇b are opened, the push of the button is slowly turned on, and if the spring force button is protruded to a certain extent, the doors 20a, 20b are turned on and the door opening signal is output (on state). 98529.doc -11 - 1294511 at the top of the refrigerator body 1 The shed portion is provided with a door opening device 3 that opens the left door 2〇a and the right door 20b of the refrigerating chamber 2, respectively, and the door opening device 3〇 is disposed in parallel with the left door opening mechanism portion 31 and the right door opening mechanism portion 32. The door opening machine; the structure 3 is described. As shown in Fig. 11 showing the cross-sectional structure of the upper portion of the refrigerator 1, the left door opening mechanism portion 3 is disposed half-buried in the recess 1c formed in the ceiling portion of the refrigerator body 1, Further, it is disposed in the synthetic resin case 33 and stored in a state in which the electromagnetic solenoid 34 driven by the direct current is used as the g driving source. The main constituent element of the electromagnetic solenoid 34 is a coil unit 35 which is formed by forming a cylindrical coil resin, and is a magnetic column movable in the axial direction in a state in which the unit is penetrated in the unit. The plug 36 includes a pressing member 37 that is non-magnetic metal that is fixed coaxially to the plunger 36. In the following configuration, when the coil of the coil unit 35 is energized (hereinafter, as the energized state), the plunger 36 and the pressing member 37 are biased in the direction of the door 2A. An 锷 卩 卩 卩 有用 卩 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞 柱塞A traction spring 38 for the coil spring. According to the above configuration, when the electromagnetic solenoid 34 is energized, the pressing member 37 projects forward and pushes the left door 20a to automatically open the door, and when the energization is cut off, the spring force of the traction spring 38 returns to the initial position. Since the configuration of the right door closing mechanism portion 32 is the same as that of the left door opening mechanism portion 31, the explanation is omitted. However, if the electromagnetic solenoid 34 of the right door opening mechanism portion 32 is energized, the right door 2b can be automatically opened. 98529.doc -12- 1294511 Thus, as shown in FIG. 7, the right door opening mechanism portion 32 is disposed closer to the hinge side than the left door opening mechanism portion 31 because the left door 2〇a is provided with a rotating partition plate. 25, since the force required for opening the door is required more than the right door 2〇b, the pressing force of the right opening mechanism portion 32 is reduced, whereby the opening speeds of the left and right doors 20a and 20b can be substantially matched. Further, when the right door opening mechanism portion 32 and the left door opening mechanism portion 3 are symmetrically arranged, the pressing force can be changed according to the energization time or the supply voltage, so that the pushing force of the left door opening mechanism portion 31 is stronger than the right side. This causes the door opening speeds of the left and right doors 20a and 20b to substantially match. Further, when the sizes of the left and right doors 2a are different, it is preferable to appropriately change the proper arrangement or the pressing force. Next, the control circuit of the present invention will be described with reference to Fig. 10 which is a control block diagram. The control device 50 inputs a door opening signal or a door closing signal from the left door switch 26a and the right door switch 26b in accordance with the door opening state of the left and right doors 2a, 2, b, and inputs a drive signal from the left door opening switch 27a and the right door opening switch 271). • When the control device 5G inputs a drive signal when inputting a drive signal according to the signals, the turn-on signal is turned to the left open circuit 51 or the right open circuit. The left open circuit 51 is explained. The electromagnetic solenoid 34 is illustrated. One of the terminals is connected to a positive output terminal of a voltage-eliminating circuit that is not shown, and the other terminal is connected to the hard side of the driving F. Further, a diode is connected in parallel to the two terminals of the electromagnetic spiral (4). 62. If the driving signal of the left open door switch 27a in the door closing signal is input to the control device 50, the FET 61 can be turned on according to an instruction from the control device 5 (the control power source is, for example, a direct current 15V, and the driving power source is, for example, a direct current v) 98529.doc -13- 1294511 A specific configuration for driving the FET 6 1 to be turned on and off is shown. The output side terminal from the control device 50 is connected to the base side of the npn-type first transistor 71, which The collector side of the first transistor 71 is connected to the collector side of the pnp-type second transistor 67 via a resistor 69 to supply a control power source, and the emitter side and the bases of the second transistor 67 and the third transistor 68 are provided. Side connection, again, The resistor 70 is connected to the ground. The emitter side of the second transistor 67 is connected to the emitter side of the pnp-type third transistor 68, and is connected to the source side of the FET 61 through a resistor 64. Further, the third transistor The collector side of 68 is grounded. Further, the resistor 64 is connected in parallel to a circuit in which a resistor 66 and a diode 65 are connected in series, and the resistor 64 and the gate of the FET 61 are grounded via a resistor 63. In this case, if the ON signal is input from the control device 50, the first transistor 71 will be turned on. Thus, since the collector voltage of the second transistor 67 is supplied with the control voltage, the second transistor 67 is turned on. Therefore, current flows between the collector and the emitter. Then, due to the current flowing to the base side of the third transistor 68, the third transistor 68 will be turned off and the FET 61 will be turned on. If the turn-on signal from the control device 50 is turned off, the first transistor 71 will be turned off, and the base current of the third transistor 68 will flow through the gate of the FET 61 and flow through the grounded resistor 70. The third transistor 68 will be turned on and the gate of the FET 61 is electrically The FET 61 can be turned off so that the FET 61 can change the on-time (pulse width) to control the output voltage with the PWM control of the control time ratio. The FET6 1 is 98529.doc -14-1294511 The pass k (P WM signal) is set to a frequency that is difficult for the user's ear to hear, for example, 8 kHz or more. The most sensitive listening area in the human average listening area is around 4 kHz, if the PWM signal is nearby As shown in the present embodiment, the energized electromagnetic solenoid 34 may be such that the front end of the pressing member 37 abuts against the left and right doors 20a, 20b', and the PWM signal is transmitted to the left and right doors 2a, 20b. Therefore, a vibration sound is generated, and the user feels the noise. Further, if the spring frequency of the pwM signal is too low, the pressing member 37 cannot be sufficiently protruded. Therefore, a high-frequency PWM signal of 8 kHz or more is set so as to eliminate the listening area that is perceived as noise and can be surely opened. In addition, since the configuration of the right-opening PT circuit 52 is the same as that of the left-door opening circuit 51, the description thereof will be omitted. Next, the operation of the door opening device 3 时 when the left door 20a is opened will be described with reference to Fig. 1 showing the timing. When the left door 20a is in the open state, since the left door opening mechanism portion 31 of the door opening device 3 is not required to be operated, when the left door switch % is off, that is, when the door closing signal is output, if the user pushes the ta timing. When the left door switch 27& is turned on, the drive signal is output to the control device 5, and the left door opening mechanism portion is energized. The driving pressing member 37 by the left opening mechanism portion 31 will be protruded, and the left door 20a will be pushed to disengage the magnet lining 2丄a, and the left door switch 26a will be turned on at the tb timing as shown in FIG. The output opens the signal. The control device 50 is configured to, if the door opening signal is received, the left door center will disengage the magnet pad 2U and open the door to a specific position, and energize the specific time from the (4) 98529.doc -15-1294511 to tc, For example, 〇 1 second square 2〇a is fully open. The fly can then cause the left door to pass, and since the door opening device is energized by the _ output door opening signal, the door opening device can be surely opened. = Don't open the door. If it is turned on, it will only be supplied in the special time, for example, 2 seconds to 3 seconds. If it is closed according to the door closing time and the load capacity of the storage box: = Door, =: Due to the weak opening of the door, it may not be fully opened or the other side may be placed in storage due to excessive strength.艮 艮 口 口 will fall

Ml ’ # is affected by the time (4) after the door is closed. Since the temperature in the refrigerator is lower than that after closing the door, the pressure in the refrigerator will be reduced by the air in the refrigerator, and the gap will become larger. The poetry refrigerator (10) that lowers the pressure in the refrigerator and the refrigerator in the day is lower than the outside air system. Because the door is opened when the door is opened, the force is too large, and the force of the door is opened because the magnet pad is detached. When I go to Tianba, and I am at Jiaotong University, there are cases where the voltage cannot be opened or the door opening speed is too fast even if the voltage is supplied to the electromagnetic solenoid in the same manner. Moreover, by the weight of the food placed in the storage box, or when the dirt adheres to the magnetic lining, the force required to open the door will vary by its viscosity. Therefore, according to the present invention, until the magnet pad required to open the door changes greatly, the door opening device will be opened until the door opening letter 95529.doc -16-1294511 is released. It will inevitably be energized. In addition, after the door opening is required, the force required to open the door does not change greatly. By opening the door: The power supply can be opened at the most appropriate time. Further, although the left and right split type refrigerators have been described in the present embodiment, even in the present invention, even a single door can achieve the same effect. Further, it is preferable that the self-opening switch is turned on until between ta and tb until the door switch turns on the door open signal, and it is preferable to set the upper limit value to, for example, seconds. The reason is 0.2 to 0.3 seconds. The reason is that if there is an obstacle such as an obstacle on the other side of the door, the U can be opened without any restriction, and the electromagnetic solenoid may be burnt at a high temperature. Therefore, the upper limit is obtained by setting an experiment or the like in such a manner that such a bad situation does not occur, thereby preventing the related disadvantage. Further, since the door opening timing is detected, the door opening force is not required as compared with the case where the magnet (four) is disengaged, so that the pwm duty ratio can be changed and the output voltage can be lowered, or the output voltage can be gradually lowered as indicated by a broken line in Fig. 1. It is described with reference to FIG. 2, FIG. 8 and FIG. 9 for other embodiments. FIG. 2 is a view showing the action of the action of the '1 garment' when the side door is opened in the state where the door is opened. The above-mentioned FIG. 8 is a plan view showing the refrigerator when the right door is opened. FIG. 9 is a plan view showing the refrigerator when the left door is opened in a state where the right door is opened. In addition, the same constituents are duplicated, and thus the description thereof will be omitted. If the left and right doors 20a, 20b are in the state of being closed together, and any one side is turned on in the td timing, here the right door opening switch 27b is turned on, the right door opening mechanism portion 32 will be energized 'the right door switch as shown in FIG. 26b If the door opening signal is turned on by turning on the time sequence of the right door 20b, the specific time until the power is turned off, 98529.doc -17-1294511 2 is (the second door turns on the right door bird. In this case, the right door switch is thin.) It will remain in the ON state. Since the door is not negative when it is in the state of opening the door, the magnet spacers 21a, 21b on the side of the side are not adsorbed to the rotating partition plate 25' and thus the door is closed. Compared with the force of f, it will be reduced. Therefore, 'the right force to open the f1 with the same state when the door is closed may cause the food placed in the storage box to fall due to the excessively strong protruding pressing member'.

Good situation. Therefore, in the present embodiment, the specific four spaces from the opening of the door until the energization is cut off are shortened to a shorter time than when the one side door is closed. Specifically, if the side door that is not opened by the tg timing is turned on, here the left door 20a is opened, and the user turns on the left door opening switch 27a, the electromagnetic solenoid 34 of the left door opening mechanism portion 3i is energized. Thereby, the left door 20a is pushed by the pressing member π. Then, if the magnet pad 21a is disengaged as shown in FIG. 9, and the door opening signal of the left door switch 26a is turned on in time series, the energization can be shorter than the shortening time of the specific time when the th timing is closed, and the power is turned on here. 〇 5 seconds, so that the power is turned on in the time series. According to the above configuration, when the side door is opened while the door is open on either side, the specific time from the opening of the door until the energization is cut off can be made shorter than when the door is closed and the door opening force is lowered, thereby opening the door most appropriately. In this case, as shown by the solid line in FIG. 2, the pwm duty ratio can be changed to lower the supply voltage to the electromagnetic solenoid 34 to, for example, 70% to 8〇% and energize instead of shortening the energization time. It can also reduce the door opening force. 98529.doc -18- 1294511 Further, when the door to which the rotary partitioning plate 25 is attached is opened, here, when the left door 20a is opened, the rotation of the rotating partitioning plate 25 is the most expensive, since even the left door according to the refrigerator form _ 26a In the ON state, there is also a case where the rotary partition plate 25 is in rotation. Therefore, it is preferable that the door opening force for the left door 20a is not lowered even if the right door is in the open state. Therefore, in the relevant case, it is preferable to apply only to the case where the rotating partition plate is not provided. Further, in other embodiments, the sun and the moon are referred to FIG. 3 and FIG. _The timing chart of the operation of the door opening device when the time until the switch is turned on is shorter than the time when the power is turned on. The above FIG. 4 shows the time from when the door open switch is turned on until the door switch is turned on longer than the power change time. The timing chart of the operation of the door opening device at the time. Further, the same components are omitted because they are repeated. As described above, since the force required to open the door varies greatly depending on the use condition of the refrigerator, it is preferable. It is suitable to change the door opening force, but in the embodiment, the door opening force is changed based on the time from the opening of the door open switch until the door switch is turned on. Specifically, as shown in FIG. 3, the door is opened on either side. Here, when the left door 20a is opened, if the user turns on the left door opening switch 27& in the tJ· timing, the left door opening mechanism portion 31 is energized to be pushed by the pressing member 37. The door 20a. At this time, the control device 50 measures the time from the tj timing until the left door switch 2 is turned on, and compares the measurement time with a predetermined energization switching time, for example, 0.5 second. When switching the time, it can be judged that it is not necessary to have a particularly strong opening force, so that it is turned on from the left door switch 98529.doc -19-1294511 a, and the power is turned on as a normal specific time, for example, ο·! seconds, or shorter than The time is shortened, for example, 〇.〇5 seconds, and the power is turned off at the time of t1. The other side is as shown in Fig. 4, when the measurement time is longer than the power-on switching time since the program is turned on until the left door switch % is turned on. It can be judged that a strong door opening force is required, so that the tm timing from the left door switch 26a is turned on, the energization is longer than the extension time between the special (four), for example, 1515 seconds, or the power is equal to the specific time of the same Φ, for example, 0.1 second. The energization is terminated at the tn timing. According to the above configuration, the force required to open the door by the load of the food placed on the storage case is changed by changing the energization time according to the time required to open the door. The change can also change the door opening force of the door opening device most appropriately. In addition, in this embodiment, the same effect can be achieved for a refrigerator of one door, and the circuit can be increased or decreased instead of changing the power-on time. The embodiment of the present invention is an embodiment, and various combinations and values exemplified are optimally optimized. Further, the door opening device is not limited to a mechanism for projecting a pressing member by energization of an electromagnetic solenoid. Other embodiments of the present invention will be described below. Fig. 3 is a perspective view showing a refrigerator according to another embodiment of the present invention, and Fig. 14 is a view showing a state in which the refrigerator of Fig. 13 is opened. 13. In FIG. 14, in the refrigerator main body 1 which is constructed as a heat insulating box of a well-known structure, the refrigerator compartment 2, the vegetable compartment 3, and the ice making compartment 4 are provided in order from the top, and the internal temperature can be switched to plural. The switching chamber 5 and the freezing chamber 6 of the stages are arranged, and the ice making chamber 4 and the switching chamber 5 are arranged side by side in right/right. 98529.doc -20· 1294511 Hereinafter, in order to avoid redundancy, only parts different from the above embodiment will be described. With respect to the above-described FIG. 5, the configuration of FIG. 13 is different as follows. An operation unit 28 that can perform storage room temperature adjustment or the like is disposed in front of the right door 20b. The following shopping mall advertisement mode can be switched between the normal cooling mode and the shopping mall advertisement mode by the operation of the operation unit 28. Next, with respect to the above-described Fig. 6 and Fig. 14, a push switch 81 and a weight sensor 83 are added. Further, the plan view of the refrigerator 1 when the left door 20a is opened is the same as that of Fig. 7 described above. Next, the control circuit of the present invention will be described with reference to Fig. 16 of the control block diagram. The configuration of Fig. 16 corresponds to Fig. 10 which is a control block diagram of the above-described embodiment. Hereinafter, in order to avoid redundancy, only parts different from the above embodiment will be described. The control device 50 inputs a door opening signal or a door closing signal from the left door switch 26a and the right door switch 26b in accordance with the door opening state of the left and right doors 20a, 20b, and inputs a drive signal from the left door opening switch 27a and the right door opening switch 27b. When the control device 50 inputs a driving signal when inputting the door closing signal according to the signals, the duty ratio output by the load detecting mechanism 8 is determined, and the PWM signal is output to the left door opening circuit 5 or right. The door opening circuit 52 ° or less 'is explained in the left door opening circuit 51. One end of the electromagnetic solenoid 34 98529.doc -21 - 1294511 is connected to the positive output terminal of the voltage doubler rectifier circuit (not shown), and the other terminal is connected to the drain side of the driving FET 61. Further, a diode 62 is connected in parallel to both terminals of the electromagnetic solenoid 34. If the driving signal of the left open door switch 27a is input to the control device 50 in the closing signal of the left door switch 26a, the FET 61 can be turned on by the PWM signal from the control device 50 (the control power source is, for example, a direct current 15 v, and the driving power source is, for example, DC 200 V). Next, in Fig. 16, the specific configuration in which the FET 61 is driven to be turned on and off is the same as that of the above-described embodiment shown in Fig. 1 and the description thereof is omitted. Further, since the right opening circuit 52 has the same configuration as the left opening circuit 5 i , the description thereof will be omitted.

Next, the load detecting means 80 will be described. The load detecting means 8 is provided in the control means 50, and the load consumed by the opening of the door can be measured based on the input values of the switches or sensors, etc., in this embodiment. Check for food. Specifically, the push switch 81 is disposed on the bottom surface or the back side of the left door 2〇a and the right door storage storage boxes 23a, 23b, and if the plastic bottle or the like is stored in the storage box, the food container or the like is used. When the push switch Si is pushed, it is judged that the food is placed. On the other hand, if the food is taken out, the push (4) caused by the food is eliminated, so that it can be judged that the food is not placed. The /h section can also use the infrared sensation instead of the (four) type switch 81. In addition, in the following refrigerator, it is also possible to determine the profitable placement food according to the following information: the user can be placed in the storage box 23a arbitrarily. The food of 23b;;, the hunting is carried out by the input of the operation unit 28 or the like to implement food management. < 98529.doc -22- 1294511 Referring to the flowchart as a flowchart, the opening of the left door 20a is applied. Next, the operation of the door opening device 30 at the time of opening the door will be described with reference to FIG. Furthermore, an explanation will be given for the sake of simplicity. In the force step S1, in the state where the left door 20 is broken, since it is not necessary to operate the door device, it is detected whether or not the left door switch 26a is in the off state, and if it is in the off state, the process proceeds to step S2. When the left door switch 26a turns off the door closing signal in step S2, it is detected that φ pushes the left door opening switch 27a from the user, and if it is in the ON state, it is considered that the latter requests to open the left door 20a to proceed to step S3. In step S3, the load detecting mechanism 8 detects the load consumed when the left door center is opened. The reason for this is that in the case where the storage box 23a is placed with, for example, a heavy-loaded plastic bottle temple food and the case where it is not placed, the force required to open the door is not the same. Therefore, the door opening device can be changed depending on the presence or absence of the food. Open the door. At this time, if the electromagnetic solenoid 34 is energized with a fixed output voltage, the degree of opening when the ##food is placed will be narrow, or when the food is not placed, it may be caused by the excessive opening of the momentum. The rotary buffer of the money key portion is shown to collide or the collision sound becomes loud to generate noise. Therefore, it is judged in step S4 whether the load consumed when the door is opened is heavy. In the present embodiment, it is judged whether or not the food is placed; in the storage box, if the food is placed, it is judged that the load when the door is opened is heavy. This proceeds to step S5, and if the unloaded food is turned off, the load is lighter when the door is opened, thereby entering the step. In step S5, the door opening force is increased. Specifically, the higher setting of the PWM duty ratio of the n-device 30 is set to, for example, 1%. On the other hand, in step 98 of 98529.doc -23-1294511, the door opening force is lowered. And 髀 > ^ > (1) 八 Eight-body 疋, the parent is set lower to the PWM duty cycle of the left-opening device 31, for example, set to 9〇%. Then, in step S7, the <吏 left open_device 31 is energized according to the respectively set pWM duty ratio. In this manner, the A-door 20a is pushed open by the door opening force of the door opening device 30 which is appropriately determined, and the energization is cut off after a lapse of a certain time, for example, 3 seconds. According to the above configuration, when the load at the time of opening the door is judged to be heavy, the door opening force of the door opening device 30 is increased, or when the load of the main 丨 φ — and d is broken, the door opening force of the door opening device 30 is decreased, M ^ It is best to use this method if it is too strong or too weak. 'Because it is judged according to the presence or absence of food, it can be checked. It is the load that is consumed when the door is opened, so it is most appropriate to open the door. Set the movement of 30, but also, but also

Further, in the above configuration, the opening of the left door 2 as it is opened has been made clear, and the right door 2〇b can be made to perform the same operation, and the energization time is extended or shortened as a method of increasing the opening force. According to the amount of food, the door opening power is determined separately. , and explain the evils of the Eighths. In the present embodiment, the negative detecting mechanism 80 is based on the load placed on the storage box, the other food, and the door opening. /, the body is at the bottom of the storage boxes 23a, 23b "No, the weight ηπΤ detected by the weight sensor 83 is placed 5", the load detecting mechanism 80 judges 1 based on the weight information. It is judged that the load is lighter when the weight of the pregnancy is below. 98529.doc •24- 1294511 According to the above configuration, since the load applied to the doors 2〇a and 2〇b can be surely detected, and the load at the time of opening the door can be detected more accurately, the door can be opened most appropriately. Next, other embodiments will be described. In the present embodiment, the load consumed when the left and right doors are opened is detected based on the time when the left door switch 26a and the right door switch 26b simultaneously output the door closing signal.

The power to open the doors 20a, 20b of the refrigerator 1 is affected by the closing time. Because of the tb shortly after the door is closed, the temperature inside the ice bin is more low-temperature after a certain amount of time since the door is closed, and at the same time, the pressure in the refrigerator will decrease. The difference between the pressure in the atmosphere and the pressure in the refrigerator will become larger. In general, the difference between the external air pressure and the pressure in the refrigerator means that the force of biasing the door closing direction when the doors 20a and 20b are opened is large, and the force required to open the door due to the separation of the magnet pads 2U and 21b Of course, the size is increased, so that even if a specific voltage is supplied to the electromagnetic solenoid in the same manner, there is a case where the door cannot be opened or the door opening speed is too fast. Therefore, if the left and right door switches 26a and 26b collectively output the door closing signal for a certain period of time, for example, i hours or more, the refrigerator will become a negative pressure, so that the load at the time of opening the door is considered to be large, so that the door opening force is increased (for example, the ratio of the door opening ratio) Increase for the drive. Conversely, if a certain time has not elapsed, it is considered that the negative pressure will not be reduced, so that the opening force (for example, the PWM duty ratio is 7〇%) is reduced. According to the above configuration, even if the refrigerator is not (10) ... for a long time, the door can be opened according to the closing time;

The most appropriate door to open. The method of J-loading is described as the negative example of the other real output when the door is opened. The load detecting means 80 compares the measurement time from 98529.doc - 25-1294511 until the output of the door opening signal is compared with a predetermined time set in advance, thereby detecting the load consumed when the door is opened. Generally, the left door 2〇a provided with the rotary partitioning plate 25 has a heavy load when the door is opened, but sometimes if the dirt adheres to the magnet pad 21b of the right door 2叽 where the rotating partition plate 25 is not provided, The adhesion caused by the opening of the right door 2 at this time becomes heavier, so it is less desirable to open the door from the left door 2〇a in advance.

Therefore, in the door opening operation of the previous left door 20a and the right door 2〇b, the time until the door opening switches 27a, 27b are respectively operated until the door is opened, specifically, until the left door switch 2 6 a and the right door switch 2 输出 are respectively output to open the door The measurement time until the signal is recorded in the control device 5〇. Then, when the door openers 27a and 27b are operated, it is judged that the load having a shorter measurement time is lighter when the door is opened. The reason for this is that since the time after the opening of the door opening device 3 is short, the dirt adhering to the magnet pads 21a and 21b does not change, and the previous measurement time can be regarded as the load when the door is actually opened. Therefore, the door can be opened by the lighter side of the self-loading configuration described above. Next, other embodiments will be described. In the present embodiment, when the side door is opened by the output of the door opening signal by any of the side door switches 26a, 26b, it is judged that the load at the time of opening the door is light. As described above, since the two doors 2〇a and the bird are in a state of being in a negative pressure state in the state of the bird, the load at the time of opening the door becomes large, but any side door produced in the open state does not become a negative pressure, so the door is opened. When the load becomes smaller, it is considered that the cause of the load generated when the door is opened is the separation of the magnets, 98529.doc -26-1294511, but as long as the door is opened on either side, the two doors 20a, 20b are opposite. The magnet pads 21a, 21b on the surface are in a disengaged state, so that the load at the time of opening the door can be reduced. Therefore, as shown in FIG. 15, when the left door 20a or the right door 20b is opened in this embodiment, it is detected whether or not the side door is in an open state. If it is opened, the load at the time of opening the door is considered to be small, and the door opening force can be reduced (for example, PWM occupation) Air ratio 50%). According to the above configuration, in the case where the one-side door in the right and left split type refrigerator is open or sad, the door opening force can be reduced, so that the door can be opened most appropriately. Next, other embodiments will be described. In the present embodiment, a description will be given of a configuration in which a shopping mall advertisement mode in which only a specific electric component is operated without cooling the refrigerator 1 is provided. The mall advertising model is used to promote the sales model in the mall. Usually, there is no need to cool the refrigerator in the commercial, so the compressor is stopped but the refrigerator or fan is operated. In this mode, it is set to drive the door opener 3 〇, but the refrigerator does not cool φ, so there is no negative pressure in the refrigerator. Thereby, if the door opening device 30 is operated by the same door opening force as in the case of the cooling operation, the door opening speed is too strong. Moreover, since no food is placed in the mall, the load at the time of opening the door is also light. Therefore, when entering the mall advertisement mode by the operation of the operation unit 28 or the like, it is determined that the load at the time of opening the door is light due to the fact that the refrigerator is not under negative pressure, and the door opening force is reduced (for example, the PWM duty ratio is 7〇%). In order to open the door most appropriately. Next, other embodiments will be described. In the present embodiment, in the state in which the side of the rotary partitioning plate 25 is opened, only the side door of the door is opened, and it is judged that the load at the time of opening the door is light. 98529.doc -27- 1294511 The load on the door is 0τΓ, depending on whether there is food placed, whether the refrigerator is under negative pressure or if any side door is open, etc. The rotation of the partition 25 becomes one of the causes of the load generated when the door is opened. Therefore, although the left door 20a provided with the rotary partitioning plate 25 is actually opened, the door opening force of the door opening device 30 is set. However, since the rotation of the rotating partition plate (10) is most expensive, the door may be opened by other factors. The increase or decrease in force is less than ideal. Therefore, when the door provided with the side of the rotating partition plate 25 is opened, 'only when the side door is opened, it is judged that the load at the time of opening the door is light, so that the door provided with the side of the rotating partition plate 25 can be surely opened, and The side door can be opened according to the specifications of the refrigerator, etc., so the door can be opened most appropriately. Furthermore, the above configuration is an embodiment of the present invention, and various modifications can be made. For example, the electromagnetic solenoid can be turned off after a certain period of time, but it is also possible to output a door open signal from the door switch until the power is turned off after a certain period of time has elapsed. Hereinafter, other embodiments of the present invention will be described. Fig. 13 is a perspective view showing the refrigerator of the present invention, and Fig. 14 is a view showing a state in which the refrigerator of Fig. 13 is opened. In the refrigerator main body 1 which is configured as a heat insulating phase body of a well-known structure, the refrigerator compartment 2, the vegetable compartment 3, and the ice making compartment 4 are provided in order from the top, and the internal temperature can be switched to plural. The switching chamber 5 and the freezing chamber 6 of the stages, the ice making chamber 4, and the switching chamber 5 are arranged side by side. Hereinafter, in order to avoid redundancy, only parts different from the above embodiment will be described. 98529.doc -28 - 1294511 In Fig. 13, an operation unit 28 that can perform temperature adjustment of the storage compartment or the like is provided in front of the right door bird. Further, the top view of the refrigerator i when the left door 20a is not opened is the same as that of Fig. 7 described above. Next, the circuit of the fourth embodiment of the present invention will be described with reference to Fig. 16 of the control block diagram. The control device 50 inputs a door opening signal or a door closing signal from the left door switch 26a and the right door switch 26b according to the left and right doors 2A, and the door opening signal 26a and the right door switch 26b, and the drive signal is input from the left door open switch 27a and the right door open switch 27b. Hereinafter, in order to avoid redundancy, only parts different from the above embodiment will be described. Further, regarding the right open circuit 52, the configuration is the same as that of the left open circuit, and the left open circuit 5i and the right open circuit are electrically independent. The reason for this is that, in general, a noise filter circuit including a common mode choke coil for removing impurities from the outside is provided in the electric circuit, and if the _ Μ 电路 circuit 5 1 and 52 respectively have a common line ' All of the current will flow to the choke coil of the common mode, so the coil must be enlarged to ensure the current capacitance of the noise filter circuit. However, if it is electrically independent, it does not need to be improved as shown in this embodiment. Current and capacitance can be miniaturized. The _ person, the action of the door opening device when opening the door is explained. Further, since the operations of opening the left door 20a and the right door 20b are the same, the left door 20a will be described as an example. Since the left door 20a is in the open state, it is not necessary to cause the left door opening device 3 to move 98529.doc -29-1294511, so when the left door switch 26a outputs the door closing signal, the state is off, if the user pushes the left door When the switch 27a is turned "on", the drive signal ι is output to the control device 50 so that the left door opening device 31 will be energized. • At this time, the pressing member 37 protrudes to push the left door 20a and disengage from the adsorption of the magnet pad 21a, so that the left door switch 2 is turned on and the door opening h is output as shown in FIG. The time from the turning on of the left door open switch 27a until the left door switch 26a is turned on is generally 0 · 2 seconds ~ 〇 · 3 seconds. Upon receiving the door opening signal, the φ control device 50 can estimate that the magnet door 21a is detached from the magnet lining 21a and is opened to a specific position, and can be energized from the timing for a specific time, for example, 0.1 second, thereby completely opening the left door 2A. Next, the operation of the left and right door opening device in the case where the side door opening device is operated when the one side door opening device is energized is referred to the figure 17 of the flowchart, and the right door opening switch is operated when the left door opening device 31 is energized here. The case of 27b is explained as an example. In step S11, if the left door 2〇a and the right door are in the open state, it is not necessary to operate the door opening device 30, so it is detected whether the left door switch 26a and the right door switch 26b are in the off state (step sii), if it is broken The open state proceeds to step S12. Furthermore, if the side door switch is operated while the side is in the open state, the door opening device on the side door side of the side door can be energized as usual. Of course, the load consumed by opening the door due to the side door being opened will be lighter: the door opening force can also be reduced. In step S12, it is detected whether or not the left side 27b (step S12) is operated, and it is requested to open the door to proceed to step s丨3. If the door open switch 27a or the right open door switch is operated by the party, it is determined that the user 98529.doc -30-Ϊ294511 detects in step S13 whether the side open switch is operated, that is, the same:: detects whether the open switch 27a, 27b is At the same time, it is operated (step si3). If the double-entry operation is input to step S14, if it is not subjected to the operation, the process proceeds to step su. In step S14, it is detected whether or not a specific time has elapsed since the one side open switch was operated, for example, 〇〇 2 seconds (step S14). That is, even if the user operates at the same time, there is usually a time interval. Therefore, it is considered that the operation is performed at the same time as long as the side opening switch is operated in the special room after the door is opened from the operation side. Therefore, if the side door opening switch is not operated after the specific time has elapsed, it is judged that the operation is not simultaneously performed, and the process proceeds to step S15, and the door opening device 3 of the side on which the door open switch is operated is started to be energized as described above, here is the left side. The door opening device 31 starts to be energized (step (鲰15), on the other hand, when the specific time has not elapsed, the process returns to step s丨3. Further, because the specific time is the time when the door opening device 30 is not energized, If it is set to a time that is too long, the operation will not be performed regardless of whether or not the door opening switch 4 is operated, and the user may feel uncomfortable. Therefore, it is preferable to set it to 〇·〇5 seconds or less. In step S16 It is detected whether or not the pass of the left door opening device η has been completed (step S16). Specifically, after detecting that the power is turned on, the left door switch 26a is turned on for a certain time, and if a certain time has elapsed, the process proceeds to S17. In step S17, it is detected whether the side opening switch 27 is operated in the power-on of the left door opening device 31, here the right door opening switch m (step si7), and if the operation proceeds to step S18', the operation is started. The door opening device % on the operation side, here the right door I is set to 32, and is energized (step gig). 98529.doc -31 - 1294511 Also: Since the door opening device is energized, even if the side door switch is operated, the dream can be ended. - When the side door opening device is energized, the door is not opened and the power is turned on. Therefore, it is not necessary to repeatedly energize the left and right door opening devices to prevent excessive current from flowing. 卩 ^ ^ 'As described above, by the user's operation, there is At the same time, the operation of the right and left sides of the right and left sides is operated, and the operation at the same time is explained. S1 = In step S19, the load (step artist) when the left and right doors 20a and 20b are opened is determined as an example, since the rotation is usually set. When the load generated by the side of the partition plate 25 is large, it is determined that the load is heavy when the left door 2〇a provided with the rotary partitioning plate 25 is opened. In step S20, the load determined by the step S19 is compared. The light door side starts to be energized (step S2 〇). Here, since the right door 2 sen is not provided with the rotating partition plate 25, the load when opening the door is lighter than the left door 2 〇 a, so the right door opening device 32 is energized to make the right door 2 b is turned on. At this time, as shown in Fig. 15, even if the left door opening switch 27a is operated in a manner that can be considered to be simultaneously but earlier than the right opening φ door switch 2, the right door 2 can be energized from the right door opening device 32. b is turned on. In step S21, in the same manner as step S16, in order to prevent the left and right door K from being turned on, the power is turned on, and it is detected here whether or not the power to the right door opening device 32 has been completed (step S21). When the process is completed, the routine proceeds to step 821. In step S22, the door having a heavy load determined by step S16 is energized (step S22). Here, the left door opening device 31 is energized to turn on the left door 20a. In this way, the reason for opening the door from the lighter side of the load is that, as in the case of the embodiment 98529.doc -32-1294511, the door opening device is energized when the door switch is turned on until the door is turned on. If the switch is not turned on, it will not start energizing the side door opening device. If the self-load is heavy, the side is energized, and it takes time until the door switch is turned on (for example, (10)~h5 seconds), so that it is difficult to open the side door, so it is possible Give users a sense of discomfort. Therefore, even if the door openers 27a and 27b are operated at the same time, the door can be opened from the lighter side when the door is opened, whereby the user does not feel uncomfortable, and the door opening device 3 can be surely operated to open the door. According to the above configuration, even if the side side J1 switch i is operated during the energization of the side door opening device until the end of the energization, the side door opening device is not energized, thereby preventing the power supply to the left and right door opening devices from being repeated, thereby preventing the disconnection of the commercial power source. The action of the device. In addition, when the door opening switch is operated at the same time, since the door of the rotating partition plate that generates a load when the door is opened is not opened, the door can be opened from the lighter side of the load, so that the user is not uncomfortable. The sense can actually make the door opening device work. The 'secondary' is a method for judging the load applied to the left and right doors, and other embodiments will be described. The load detecting means 80 is provided in the control device 50, and the load at the time of opening the door can be detected by the input value of each switch or the sensing H or the like. In the present embodiment, the presence or absence of food can be detected. The reason for this is that, in the case where a food such as a plastic bottle having a heavy load is placed on the storage case 23a and the case where the food is not placed, the load at the time of opening the door is different, and the refrigerator form in which the rotary partition plate 25 is not provided is used. Needless to say, even in the form of a refrigerator provided with the rotary partitioning plate 25 as shown in the embodiment of the present application, the number of foods is sometimes changed, the load is changed when the side is opened by the presence or absence of food. Heavy situation. Specifically, the push-type switch 81 is disposed on the bottom surface or the back surface of the storage boxes 23a and 23b of the left door 2〇a and the right door 2〇b, and when the beverage or food such as a plastic bottle is stored in the storage box, A push switch such as a container is pressed to determine that food is placed. On the contrary, when the food is taken out, the food is caused to be eliminated, so that it is judged that the food is not placed. Furthermore, the infrared sensor 82 can be used instead of the push-type switch 8 . In the following refrigerator, it is also possible to determine whether or not the food is placed according to the following information: the user can be placed in the storage box 23a, 23b arbitrarily. The food is stored in the refrigerator for food management by the input of the operation unit 38 or the like. As an operation, in step S1947, a ^ , the left and right door birds are detected by the negative detecting means 8 有, and the food is placed on one side of the left and right doors 2 〇 a, m, and the side door is placed on the side door. When it is judged that the food is not placed, it is judged whether the threshold of the unloaded food is light. Further, when neither the left and right doors 20a and 20b are placed on the food, or when the condition of ^wr μ ^ 4 has & ασ, it can be judged that the load of the door of the partition plate 25 is not heavy. According to the above configuration, since the use condition of the user can be detected by the user's use condition of y - - π ^ β .. π 分别, it is possible to surely open the door from the lighter side. Furthermore, the number of foods can be judged by the number of foods. ^ Τ Τ Τ Τ , , , , , , , , , , , , , , , 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 重量 985 985 985 985 - 1294511 Park Jongcai's re-information, judging the negatives applied to the left and right doors 20a, 20b: Compared with the presence or absence of food, the load at the time of opening the door can be more accurately detected. > Next, as a method of judging the load applied to the left and right crucibles, the other details will be described. The load detecting means 8 比较 compares the measurement time from the time when the previous door is opened, and the measurement time until the output of the door opening signal is compared with the preset special day keeper, so that the load applied to the door opening can be detected. Generally, the left door 2〇a provided with the rotary partitioning plate 25 has a heavy load when the door is opened, but if the dirt adheres to the magnetic 'carrier liner 21b' of the right door 20b where the rotary partitioning plate 25 is not provided, the adhesion is due to the adhesion. It may cause the right door to open when the door is opened, so it is not ideal to open it from the left door 2〇a in advance. Therefore, the time from when the respective door open switches 27a and 27b of the previous left door 20a and the right door 20b are opened until the door is opened is specifically determined until the left door switch 26a and the right door switch 26b respectively output the door opening signal. The time is recorded in the control device 50. Further, when the door opening/closing switches 27a and 2 are operated, it is determined in step S19 that the load on the shorter side of the measurement time is lighter when the door is opened. The reason for this is that the time before and after the door opening device 3 is normally used is short, so that the dirt adhering to the magnet pads 21a and 21b does not change, and the previous measurement time can be regarded as the load at the time of actually opening the door. Therefore, according to the above configuration, the door can be surely opened from the lighter side. Furthermore, the above configuration is an embodiment of the present invention, and various combinations and numerical values exemplified in the form of the refrigerator can be optimally optimized. For example, the energization of the door opening device 30 can be set from the time when the door switch is turned on until the specific time 98529.doc -35 - 1294511 has elapsed, but it can also be configured as a self-opening switch, for example, 1 second.屯 疋 疋 疋 又 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 When the side door switch is opened, or the door opening device is operated at the same time. [Industrial Applicability] • As described above, according to the present invention, it is possible to use the door opening device to open the door most appropriately, and thus it is applicable to various refrigerators having a door opening device. As described above, according to the present invention, the door opening device can be used most appropriately, and thus can be applied to various refrigerators having a door opening device. "Khan, as described above, according to the present invention, even if the side opening door device is used as the side opening switch, or when the door opening switch is operated at the same time, the two doors can be confirmed, and thus it is applicable to various left and right pairs having the door opening device. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a timing chart showing the operation of the door opening device of the present invention. Fig. 2 is a timing chart showing the operation of the left and right door opening mechanism portions of the present invention. Fig. 3 is a timing chart showing the operation of the present invention in the case where the measurement time is short. Fig. 4 is a timing chart showing the operation time of the present invention compared with ^ ^ ^ ^ ^ ^ ^. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 5 is a perspective view showing the refrigerator of the present invention. Fig. 6 is a perspective view showing the state of the door opening of Fig. 5. Fig. 7 is a plan view showing the refrigerator when the left door is opened. 98529.doc -36- 1294511 Figure 8 is a top view of the refrigerator when the right door is opened. Fig. 9 is a plan view showing the refrigerator when the left door is opened while the right door is open. Figure 1 is a control block diagram of the present invention. Figure 11 is a longitudinal sectional view showing the door opening device of the present invention. Fig. 12 is a flow chart showing the operation of the door opening device of the present invention. Fig. 13 is a perspective view showing the refrigerator of the present invention.

Fig. 14 is a perspective view showing the state in which the figure 3 is in the open state. Refrigerator of the time Figure 15 is a plan view showing the opening of the left door with the right door open. Figure 16 is a control block diagram of the present invention. Figure 17 is a flow chart showing the operation of the door opening device of the present invention. [Main component symbol description] 1 refrigerator body 20a left door 20b right door 21a, 21b magnet pad 22a, 22b beads 23a, 23b storage box 25 rotating partition body 26a left door switch 26b right door switch 27a left door switch 27b right door switch 98529. Doc -37- 1294511 30 Door opener 31 Left door mechanism 32 Right door mechanism 34 Electromagnetic solenoid 37 Pushing member 50 Control device 80 Negative detection mechanism 81 Push switch 82 Infrared sensor 83 Weight sensor 98529.doc - 38 -

Claims (1)

129 Specialized Patent Application No. 41〇〇75〇 Replacement of Patent Application Scope (July 95) X. Patent Application Range: 1 · A refrigerator characterized in that: the switch is freely disposed in front of the main body storage compartment a left-hand door and a right door of the left and right sides of the opening; a left door opening device and a right door opening device that respectively push the left and right sides to open the door; and a left door that outputs a left and right driving signal for respectively driving the left and right door opening devices by operation of the user a switch and a right-opening switch; and a left-door switch and a right-door switch for detecting a switch state of the left and right doors and outputting respective opening and closing signals; and in the state in which the left and right door switches output a door closing signal, the above-mentioned door open switch When the driving signal is output, the corresponding opening device is started to be energized', and after the opening signal is output by the corresponding door switch, the power is continued with a specific voltage until a certain time elapses, and is output from any one of the left and right door switches. In the state of the door open signal, the above left door switch or right from the other side When the door switch of driving signal output case, after the corresponding Zhizuo by door switch or the right door opening switch gate output signal is continued until the elapse of the energization time far shorter than the time specified above, or a voltage below a specific voltage. 2. The refrigerator according to claim 1, wherein when the door opening device is energized, after the output of the drive signal until the time when the door opening signal is output is equal to or less than a predetermined energization change time, the specific time is shortened or the energization voltage is lowered. power ups. A refrigerator is characterized in that: a left-right split door and a right door that are freely disposed on a front opening portion of the main body storage compartment; and a left-door opening device that opens the door by pushing the left and right doors respectively, and a right opening 98529- 950713.doc 1294511 嗳 修正 + + $ 9 诂 补 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; When the load of the two or any one of the doors is opened, when the load detecting means determines that the load at the time of opening the door is light, the door opening force of the left and right door opening device is reduced to open the door. The load detecting mechanism has a left detecting switch state of the left and right doors respectively The door switch and the right door switch detect the load suffered by the left and right doors when the door is opened based on the closing time of the doors detected by the left and right door switches. The P type refrigerator includes: a left-hand side door and a right door opening device which are respectively provided on the front left and right sides of the opening portion of the main body storage compartment, and the left door and the right door are respectively energized, and the left and right doors are respectively pushed to open the door. a left-opening switch and a right-opening switch that respectively output respective driving signals by energizing the user, and a load detecting mechanism for detecting a load experienced when the left and right doors are opened; When the two sides or any of the square doors are opened, # when the load detecting mechanism determines that the load at the time of opening is light, the door opening force of the left and right door opening devices is reduced to open the door, and the medium and negative measuring mechanism has the detection. The left door opening of the left and right door switch states: and the right door switch, according to the measurement time until the door opening switch is detected after the previous door open switch is operated, detects the load that is suffered when the door is opened. : Water: 丨 features: the switch is freely installed in the body storage 98529-950713, the left and right sides of the left and right sides of the opening of the doc j surface; with 2 - 1294511 95.7 i aff jp. + $ 9 supplemental power, a left opening device and a right opening device for respectively pushing the left and right doors to open the door; and a left opening switch and a right opening switch for respectively energizing the left and right opening devices by the operation of the user; and respectively detecting the left and right doors The left door switch and the right door switch of the door switch state; When the door to the other side is opened by the left and right door switches to detect that the door of the other side is opened, it is judged that the load at the time of opening the door is light, and the door opening force of the left door opening device or the right door opening device is reduced to open the door. 6 . A refrigerator comprising: a left-right split door and a right door that are freely disposed on a front opening of the main body storage compartment; and a left-door opening device and a right-opening door that are opened by pushing the left and right doors respectively a left-door switch and a right-opening switch that output a drive signal to energize respective left and right door opening devices by operation of the user; and a door display mode in which only certain electrical parts can be operated without cooling the refrigerator; In the case of the exhibition mode or when the door is opened and operated by one of the left and right sides, it is judged that the load at the time of opening the door is light, and the door opening force of the door opening device or the right door opening device is reduced to open the door. The refrigerator according to any one of claims 3 to 6, wherein the left or right door is provided with a rotating partition plate that rotates according to the door <switching action and closes the opposite gap when the door is closed, and the opening is not provided only for opening When the door of the partition plate of the partition plate is rotated, it is judged that the load at the time of opening the door is light and the door is opened. A refrigerator according to the invention is characterized in that: the left and right sides of the opening and closing opening of the front opening of the main body compartment are provided freely; e knife ^ push the left and right doors to open the door left door device and right -3- !2945ΐι a door opening device; and a left door switch and a right door switch for outputting driving signals to energize respective left and right door opening devices by operation of the user; when operating the door opening switch of one of the door opening devices during power on of one of the door opening devices, After the opening of the door opening device is completed, the door opening device of the other side is energized. In the case of the refrigerator of the eighth aspect, when the left and right door opening switches are substantially simultaneously operated by the operation of the door, the door opening device on the door side with a lighter load when the door is opened is energized. • The refrigerator of claim 9, wherein the left door or the right door is provided with a rotation separation according to the opening motion of the door and closing the gap relative to the gap when the door is closed, but when the left and right door opening switches are simultaneously operated, since Set the side of the rotating partition to energize the door opener. The refrigerator of claim 9 is provided with a load detecting mechanism for detecting the load of the left and right doors when the door is opened, and when the left and right door opening switches are substantially the same and the operation is started, the door is opened from the lighter load side. The device is powered. The refrigerator of claim 11, wherein the load detecting mechanism is provided with a left door switch and a right door switch for detecting the switch state of the left and right doors, and the measurement time is determined according to the previous door opening and closing operation until the door switch of the operation side detects the door opening state. , to detect the load suffered when opening the door. 98529-950713.doc