TWM522324U - Solenoid valve device capable of reducing noise - Google Patents

Description

Solenoid valve device capable of reducing noise

The present invention relates to a solenoid valve device capable of reducing noise, and more particularly to a solenoid valve device which is effective in reducing noise and has a simple structure and can reduce noise.

The design of the traditional water heater is that as long as the hot water tap is turned on to make the water flow, the solenoid valve is automatically opened to supply the gas, and the cold water supplied to the water heater is heated (that is, when the water opening program set by the water heater is determined, The solenoid valve is turned on to supply gas to the burner for combustion to heat the cold water). The principle of the traditional solenoid valve is that the single-phase energization zone S is turned from OFF to ON, and the solenoid valve is instantaneously controlled at full voltage (refer to FIG. 12, assuming 12V), so that the starting crash sound is inevitably generated. When the hot water is used normally, taking the bath as an example, the hot water tap may be turned on and off (reverse switch), and the solenoid valve is repeatedly activated, and the start impact sound is repeatedly generated. The main point is that the general water heater is usually installed outdoors and on the balcony, and the repeated impact sounds become noise, especially when the night is quiet. In view of this, it is necessary to develop a technique that can solve the above disadvantages.

The purpose of the present invention is to provide a solenoid valve device capable of reducing noise, which has the advantages of reducing noise and simplifying the structure. In particular, the problem to be solved by the present invention is that the solenoid valve of the conventional water heater generates a disturbing noise that is repeatedly activated during the process of repeatedly switching the hot water tap. The technical means for solving the above problems is to provide a solenoid valve device capable of reducing noise, comprising: a fixed base having a coil portion and a stop portion; the coil portion having a central recessed hole, the coil portion being used According to the stopping and transmitting of the working voltage, the switching between the unenergized state and the energized state; the blocking portion is disposed in the central recess; the movable valve member is disposed on the coil portion, The movable valve member has a movable core portion and a valve portion; the movable core portion extends into the central recess and is movable relative to the central recess; the valve portion and the movable core portion are opposite each other. And an elastic element is sleeved on the movable core portion and abuts between the coil portion and the valve portion; thereby, when the coil portion is never energized Transforming into an energized state, electromagnetically attracting the movable core portion, the movable core portion is changed from an uncontacted position to a contact position, and contacts the stop portion, and the valve portion is interlocked to control the fluid path to change from a disconnection path. The door portion simultaneously presses the elastic member; when the coil portion is changed from the energized state to the unenergized state, electromagnetic attraction of the movable core portion is stopped, the elastic member pushes the movable core portion, and the movable core portion returns the contact portion from the contact position And the valve portion controls the fluid path to open from the open circuit; the control portion electrically connects the coil portion and receives an OFF signal and an ON signal. And stopping and supplying the working voltage to the coil portion respectively, the working voltage includes a first stage working voltage and a second stage working voltage; the control portion has a first driving module and a second driving mode The group is respectively configured to output the first stage working voltage and the second stage working voltage; the average voltage of the first stage working voltage is between 25% and 75% of the working voltage; to slow down the movable valve When the piece changes from OFF to ON, the movable core portion contacts the force of the stopper portion, and the starting noise can be reduced. The second-stage operating voltage is 100% of the operating voltage. The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments and the accompanying drawings. The following examples are used in conjunction with the drawings to illustrate the creation in detail:

Referring to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the present invention is a solenoid valve device capable of reducing noise, comprising: a fixed base 10 having a coil portion 11 and a stop portion 12; The portion 11 has a central recessed hole 111 for switching and transmitting according to an operating voltage V, and is switchable between an unenergized state and an energized state; the blocking portion 12 is disposed in the central recess A movable valve member 20 is disposed on the coil portion 11. The movable valve member 20 has a movable core portion 21 and a valve portion 22; the movable core portion 21 extends into the central recessed hole 111. Internally, and movable relative to the central recess 111; the valve portion 22 and the movable core portion 21 are opposite each other and used to control the opening/passage of a fluid path A; an elastic member 30 is sleeved on the The movable core portion 21 is in contact with the coil portion 11 and the valve portion 22; thereby, the coil portion 11 is electromagnetically attracted to the movable core portion 21 when the coil portion 11 is changed from the energized state to the energized state. The core portion 21 is changed from an uncontacted position P1 to a contact position P2 to contact the stopper portion 12 And interlocking the valve portion 22 to control the fluid path A to change from the open circuit (as shown in FIG. 2), the valve portion 22 simultaneously presses the elastic member 30; when the coil portion 11 is changed from the energized state to the unenergized state, the system stops. Electromagnetically attracting the movable core portion 21, the elastic member 30 pushes the movable core portion 21, the movable core portion 21 returns from the contact position P2 to the uncontacted position P1, and retreats from the stop portion 12, and interlocks the valve The portion 22 controls the fluid path A to be disconnected from the open circuit (as shown in FIG. 1); a control portion 40 electrically connects the coil portion 11 and receives an OFF signal 50A (as shown in FIG. 5), an ON The signal 50B (shown in Figure 6), and the coil portion 11 is respectively stopped and supplied with the operating voltage V, the operating voltage V includes a first phase operating voltage VA and a second phase operating voltage VB; The control unit 40 has a first driving module 41 and a second driving module 42 for respectively outputting the first-stage operating voltage VA and the second-stage operating voltage VB; the average of the first-stage operating voltage VA The voltage system is between 25% and 75% of the working voltage V (refer to Figure 7, Figure) 8 and FIG. 9); for slowing the movable valve member 20 from OFF to ON, the movable core portion 21 contacts the force of the stopper portion 12, and the starting noise can be reduced, and the second-stage operating voltage VB is 100% of the operating voltage. In practical terms, referring to FIG. 5 and FIG. 6, the present invention is applied to a water heater 50, and may further include: a hot water line 51 extending from the inside of the water heater 50 for supplying hot water; a gas line 52 And extending from the outside of the water heater 50 for supplying gas, the fluid path A is disposed on the gas line 52; thereby, when the water heater 50 starts combustion, the first stage working voltage VA reaches When the movable valve member 20 is slowed from being turned OFF to ON, the movable core portion 21 contacts the force of the stopper portion 12, and the start noise can be reduced. The part to be specially explained here is that the conventional water heater is in principle provided with a solenoid valve on the gas pipeline for opening and closing gas (ie gas), and its operation state is as follows: hot water tap is turned on → cold water flows into the water heater → solenoid valve instantaneously Change from OFF to ON (generate start impact sound) → Gas supply into water heater → Water heater heats cold water into hot water → Hot water supply hot water tap → Hot water tap closes → Cold water stops flowing into water heater → Solenoid valve closes (no crash sound). That is, as long as the hot water tap is turned on repeatedly, the solenoid valve will be turned from OFF to ON instantaneously, and the impact sound will be generated repeatedly, and the general water heater is usually installed outdoors, so that the impact sound is activated to form noise, especially in the case of When the night is quiet, it is quite disturbing. Referring to FIG. 5, the present invention is mainly used in a water heater 50. The water heater 50 is further provided with: a water flu detector 53, which senses that water (cold water) 90 flows (refer to FIG. 6), that is, generates a start signal. a water heater control unit 54 electrically connects the water flu detector 53 and the control unit 40, and when receiving the activation signal 531, controls the first driving module 41 through the control unit 40. The second driving module 42 outputs the first phase operating voltage VA and the second phase operating voltage VB, respectively. That is, referring to FIG. 11, after the creation, the creation may include the following steps: 1. Preparation step 61: The fixed base 10, the movable valve member 20, the elastic member 30, and the control portion 40 are prepared (the assembly and connection relationship of the foregoing structure have been described in detail as before, and will not be described later). two. The first stage energization step 62: in the first 0 to 0.2 seconds before the operation of the movable valve member 20 is controlled, the first stage energization area S1 (see FIG. 7), at which time the first drive module 41 is connected to the coil unit. 11 supplying the first-stage working voltage VA, the average voltage value being between 25% and 75% of the working voltage V (assumed to be 12V), whereby the coil portion 11 can be slowed to electromagnetically attract the movable core portion The speed of 21, that is, in the first-stage energization operation, the coil portion 11 is attracted (slowly pulled) with a weak voltage (25% to 75% of the operating voltage V), and the movable core portion 21 is caused. The traveling speed from the uncontacted position P1 toward the contact position P2 is slowed down. three. The second stage energization step 63: after the first stage energization area S1, that is, after 0.2 (to 0.6 seconds), is the second stage energization area S2, at which time the second drive module 42 is connected to the coil The portion 11 supplies the second-stage operating voltage VB, and the average voltage value is 100% of the operating voltage V (assumed to be 12V). At this time, the coil portion 11 is attracted by the full voltage (100% of the operating voltage V). The movable core portion 21 is moved to the contact position P2 to contact the stopper portion 12, and a weak voltage that is energized in the first stage is reached, and when the movable valve member is turned from OFF to ON, the movable core portion 21 contacts the block. The force of the stop can reduce the start noise. In short, the focus of noise reduction in the present invention is that the movement of the coil portion 11 from the uncontacted position P1 to the contact position P2 can be divided into the first-stage energization zone S1 (assumed to be 0 to 0.2 seconds) and the first The two-stage energization zone S2 (assumed to be 0.2 to 0.6 seconds), and the first-stage energization zone S1 only supplies 25% to 75% of the supply voltage V, and the stroke at this time effectively slows down the traveling speed and the travel of the movable core portion 21. The force generated, and when the second-stage energization zone S2 supplies 100% of the operating voltage V, the force of the movable core portion 21 contacting the stopper portion 12 is greatly weakened, and the noise is relatively reduced. Certainly, the state of the first-stage working voltage VA can be adjusted according to actual needs. Here, the working voltage V is 12V as an example, and the following three embodiments are illustrated: [a] First embodiment: Referring to FIG. 7, the 50% of the operating voltage V. [b] Second Embodiment: Referring to Fig. 8, 33% (approximate value) of the operating voltage V is supplied first, and 66% (approximate value) of the operating voltage V is supplied. [c] Third embodiment: Referring to Fig. 9, sequentially supplied: 25% of the operating voltage V; 50% of the operating voltage V; 75% of the operating voltage V. What is specifically described here is that no matter which embodiment (even if the power supply is as shown in Fig. 10), the noise value can be effectively reduced (see Table 1 and Table 2 below). Background noise 70dB (Table 1)         <TABLE border="1" borderColor="#000000" width="_0001"><TBODY><tr><td> Preface </td><td> Pre-modification noise (unit: dB) </td><td > Modified noise (unit: dB) </td></tr><tr><td> 1 </td><td> 75.0 </td><td> 71.7 </td></tr><tr ><td> 2 </td><td> 75.9 </td><td> 71.7 </td></tr><tr><td> 3 </td><td> 75.6 </td><td > 71.1 </td></tr><tr><td> 4 </td><td> 75.6 </td><td> 71.3 </td></tr><tr><td> 5 </ Td><td> 75.7 </td><td> 71.5 </td></tr><tr><td> 6 </td><td> 75.7 </td><td> 71.6 </td>< /tr><tr><td> 7 </td><td> 76.2 </td><td> 71.4 </td></tr><tr><td> 8 </td><td> 76.2 < /td><td> 71.7 </td></tr><tr><td> 9 </td><td> 75.8 </td><td> 70.9 </td></tr><tr>< Td> 10 </td><td> 76.2 </td><td> 70.8 </td></tr><tr><td> Average</td><td> 75.8 </td><td> 71.4 </td></tr></TBODY></TABLE> background noise 66dB (Table 2)         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Preface </td><td> Pre-modification noise (unit: dB) </td>< Td> Modified noise (unit: dB) </td></tr><tr><td> 1 </td><td> 72.9 </td><td> 68.3 </td></tr>< Tr><td> 2 </td><td> 74.3 </td><td> 67.5 </td></tr><tr><td> 3 </td><td> 73.1 </td>< Td> 68.5 </td></tr><tr><td> 4 </td><td> 76.0 </td><td> 68.0 </td></tr><tr><td> 5 < /td><td> 74.9 </td><td> 67.4 </td></tr><tr><td> 6 </td><td> 75.2 </td><td> 67.1 </td> </tr><tr><td> 7 </td><td> 74.7 </td><td> 68.0 </td></tr><tr><td> 8 </td><td> 73.4 </td><td> 66.7 </td></tr><tr><td> 9 </td><td> 74.4 </td><td> 66.6 </td></tr><tr> <td> 10 </td><td> 75.3 </td><td> 67.2 </td></tr><tr><td> Average</td><td> 74.4 </td><td> 67.5 </td></tr></TBODY></TABLE> The advantages and effects of this creation can be summarized as follows: [1] Effectively reduce noise. This creation divides the working voltage into the first stage working voltage and the second stage working voltage. When the first stage working voltage is supplied (up to only 75% of the working voltage), the movable core portion is slowly attracted to travel, and when supplied The working voltage of the second stage (100% of the working voltage), the active stroke of the movable core is greatly shortened, and the force generated by the travel is also small. Even if the valve is touched, the sound is quite small (if the control is good, the sound should be silent) ). Therefore, it effectively reduces noise. [2] The structure is simple. This creation only sets two driving modules to sequentially issue the first stage working voltage and the second stage working voltage, which can effectively reduce the impact noise generated when the movable valve member turns OFF. Therefore, the structure is simple. The above is only a detailed description of the present invention by way of a preferred embodiment, and any modifications and variations of the embodiments are possible without departing from the spirit and scope of the present invention.       

10‧‧‧Fixed base
11‧‧‧ coil department
111‧‧‧ central recess
12‧‧‧stops
20‧‧‧ movable valve parts
21‧‧‧ activities core department
22‧‧‧ Valve Department
30‧‧‧Flexible components
40‧‧‧Control Department
41‧‧‧First drive module
42‧‧‧Second drive module
50‧‧‧Water heater
50A‧‧‧OFF signal
50B‧‧‧ON signal
51‧‧‧ hot water pipeline
52‧‧‧ gas pipeline
53‧‧‧Water Detector
531‧‧‧Start signal
54‧‧‧Water Heater Control Department
61‧‧‧Preparation steps
62‧‧‧First stage energization steps
63‧‧‧Second phase energization steps
90‧‧‧Water
A‧‧‧ fluid path
P1‧‧‧Untouched position
P2‧‧‧Contact location
V‧‧‧ working voltage
S1‧‧‧ first phase electrification zone
S2‧‧‧ second stage energization area
S‧‧‧ single-stage energization area
VA‧‧‧ first stage working voltage
VB‧‧‧Second stage working voltage

Fig. 1 is a schematic view showing the closing of the valve portion of the present invention. Fig. 2 is a schematic view showing the opening of the valve portion of the present invention. Fig. 3 is a partial exploded view of the present invention. Fig. 4 is a schematic diagram of the combination of Fig. 3. Fig. 5 is applied to the present application. FIG. 6 is a schematic diagram of the opening of the valve portion of the water heater. FIG. 7 is a waveform diagram of the first embodiment of the working voltage of the first stage of the creation. FIG. 8 is the first of the creation. FIG. 9 is a waveform diagram of a third embodiment of the first stage operating voltage of the present invention. FIG. 10 is a fourth embodiment of the first stage operating voltage of the present invention. Waveform diagram Figure 11 is a flow chart of the action process of the present invention. Figure 12 is a waveform diagram of the starting voltage of the solenoid valve of the conventional water heater.

10‧‧‧Fixed base

11‧‧‧ coil department

111‧‧‧ central recess

12‧‧‧stops

20‧‧‧ movable valve parts

21‧‧‧ activities core department

22‧‧‧ Valve Department

30‧‧‧Flexible components

40‧‧‧Control Department

41‧‧‧First drive module

42‧‧‧Second drive module

50B‧‧‧ON signal

52‧‧‧ gas pipeline

A‧‧‧ fluid path

P2‧‧‧Contact location

V‧‧‧ working voltage

VA‧‧‧ first stage working voltage

VB‧‧‧Second stage working voltage

Claims (3)

A solenoid valve device for reducing noise, comprising: a fixed base having a coil portion and a stop portion; the coil portion having a central recessed hole for stopping according to an operating voltage Transmitting, and switching between an unenergized state and an energized state; the blocking portion is disposed in the central recess; a movable valve member is disposed on the coil portion, the movable valve member having a movable iron core And a valve portion; the movable core portion extends into the central recess and is movable relative to the central recess; the valve portion and the movable core portion are opposite each other and are used to control a fluid path open circuit / an passage; an elastic member is sleeved on the movable core portion and abuts between the coil portion and the valve portion; thereby, when the coil portion is changed from an energized state to an energized state, electromagnetic attraction is performed In the movable core portion, the movable core portion is changed from an untouched position to a contact position, and the stop portion is contacted, and the valve portion is interlocked to control the fluid path to change from the open circuit, and the valve portion simultaneously suppresses the elasticity When the coil portion is changed from the energized state to the non-energized state, the electromagnetic core portion is stopped from being electromagnetically attracted, and the elastic member pushes the movable core portion, and the movable core portion returns the uncontacted position from the contact position, and retreats And a control unit electrically connecting the coil portion and receiving one of an OFF signal and an ON signal, respectively The coil portion stops and supplies the operating voltage, the operating voltage includes a first phase operating voltage and a second phase operating voltage; the control portion has a first driving module and a second driving module for outputting The first stage working voltage and the second stage working voltage; the average voltage of the first stage working voltage is between 25% and 75% of the working voltage; to slow down the movable valve member from OFF to ON The active core portion contacts the force of the stopping portion to reduce the starting noise, and the second stage operating voltage is 100% of the operating voltage. A water heater having a solenoid valve device capable of reducing noise includes: a water heater; a hot water pipe extending from the inside of the water heater for supplying hot water; and a gas pipe extending from the outside of the water heater; The utility model relates to a gas valve device, which is provided on the gas pipeline, and comprises: a fixed base having a coil portion and a stopping portion; the coil portion has a central recessed hole The coil portion is configured to switch between an unenergized state and an energized state according to a stop and transmission of an operating voltage; the blocking portion is disposed in the central recess; the movable valve member is disposed in the The movable valve member has a movable core portion and a valve portion; the movable core portion extends into the central recess and is movable relative to the central recess; the valve portion and the movable core The portions are opposite each other and are used to control the opening/passage of a fluid path; an elastic member is sleeved on the movable core portion and is in contact with the coil portion and the valve portion When the coil portion is changed from the energized state to the energized state, the movable core portion is electromagnetically attracted, and the movable core portion is changed from an uncontacted position to a contact position to contact the stopper portion, and the valve portion is interlocked to control the The fluid path changes from the open circuit, the valve portion simultaneously presses the elastic member; when the coil portion is changed from the energized state to the unenergized state, the electromagnetic attraction is stopped, and the elastic member pushes the movable core portion, the activity The core portion returns to the non-contact position from the contact position, and retreats from the stop portion, and interlocks the valve portion to control the fluid path to open the circuit from the open circuit; a control portion electrically connects the coil portion and is configured to receive a One of the OFF signal and the ON signal, respectively, the coil portion 11 is stopped and supplied with the operating voltage, the operating voltage includes a first phase operating voltage and a second phase operating voltage; the control portion has a first The driving module and the second driving module are respectively configured to output the first stage working voltage and the second stage working voltage; the first stage working power The average voltage of the voltage is between 25% and 75% of the working voltage, and the second stage operating voltage is 100% of the working voltage; thereby, when the water heater starts combustion, the first stage working voltage When the movable valve member is turned from OFF to ON, the movable core portion contacts the force of the stopper portion, and the start noise can be reduced. A water heater having a solenoid valve device capable of reducing noise according to claim 2, wherein the water heater further comprises: a water flu detector, which senses the flow of water, that is, generates a start signal; a water heater control unit electrically connecting the water flu detector and the control unit, and when receiving the start signal, the control unit controls the first drive module and the second drive module to sequentially output The first stage operating voltage and the second stage operating voltage.