CN1149375C - Household - Air Circulation - Refrigeration Equipment - Google Patents

Abstract

The invention relates to a device for mounting a finned type evaporator which is arranged in a household circulating air refrigeration appliance (10). The inventive device comprises at least one tube (17) which runs in an approximately meander-like manner, which is arranged at least in two rows, and which is provided with fins (22). The device also has a defrost heater for defrosting the finned type evaporator (16) to which a drain pan unit (37) is assigned. Said drain pan unit is provided with a melt water drain (42) and collects melt water that results during defrosting. The drain pan unit (37) serves as a device for mounting the finned type evaporator (16) and is provided with means which can be placed on supporting means provided in an area (12) of the refrigeration device (10), and which, with the melt water drain (42) thereof, interacts with a melt water line (12, 1) that leads melt water out of said area (12), whereby the device is positioned, at least to a large extent, inside the area (12).

Description

Household - Air Circulation - Refrigeration Equipment

The invention relates to a household-air circulation-refrigeration device, in which there is a support device for a finned evaporator, the finned evaporator has a pipe equipped with cooling fins and a melting function for the cooling fin evaporator In order to collect the melting water falling down during melting, a dew collecting device with a dew discharge port is also installed.

This device for supporting finned evaporators is known from DE OS 4311160. The device shown and described therein consists of a considerable number of parts, so that not only is the assembly of the device complex, but its manufacture is also relatively expensive due to the large number of parts. In addition, the drawbacks associated with the installation of such a variety of parts are the logistical difficulties of the various parts to be overcome, on the one hand in warehouse management; huge costs incurred.

The object of the present invention is to improve the support of finned evaporators by means of simple structural measures based on the current state of the art.

According to the invention, this task is solved by using the dew collector as a support for the finned evaporator, which is provided with clamping means for fixing the finned evaporator, and with mounting means. Using these mechanisms enables the device to be installed on a pre-arranged support structure in a space of the refrigerating equipment, and the dew collecting device with the dew discharge port works together with a dew pipe that allows the melt water to flow out of the space, so that the device Positioned within space to the greatest extent possible.

According to the solution of the present invention, both in terms of the precise positioning of the finned evaporator relative to the dew collection device, thereby reliably draining the melt water, or in terms of less structural and manufacturing technical expenditure, it is possible to use a small number of The components position the unit with maximum precision in the installation space of the finned evaporator. In particular, the positioning of the device in the installation space for the finned evaporator makes it possible to dispense with expensive mounting methods, such as grooves and spring connections for the mounting device. By inserting the dew discharge port of the dew collection device into the dew pipe without additional measures, the device in the space originally used to arrange the finned evaporator can be pre-positioned by only using existing means, so that It is permissible to install the device with corresponding securing measures. Because the number of parts of the device is minimized, and the assembly and manufacturing cost of the device in the space originally used to arrange the evaporator is obviously limited, the cost is obviously reduced, and the function is not damaged.

In an advantageous embodiment of the invention, the dew collector has a seat on its melt-water collecting side facing the finned evaporator. A stopper is provided as a holding tool for detachably supporting the finned evaporator.

This method of mounting the finned evaporator not only enables it to be mounted on the dew collection device particularly quickly without additional auxiliary measures, but also allows for maximum positioning of the dew collection area.

According to another preferred embodiment of the present invention, the stop mechanism is particularly simple, and the stopper is made into a clamp type, which supports the finned evaporator on it in the form of shape and/or force connection to guide the refrigerant And the pipeline used. In addition, this type of retainer enables the finned evaporator to be mounted on the device for supporting it particularly labor-saving. Sufficient gripping force.

Another preferred embodiment of the present invention is that the dew collecting device is equipped with a cover plate made of good thermal conductivity material to the greatest extent on its melt water collecting side, the cover plate extends at least to the dew discharge outlet and can be heated by a heating device.

By using the cover plate of the dew collection device made of such as aluminum or copper or similar metal materials with good thermal conductivity, combined with the heating of the cover plate, not only the dew collection device is within the collection range, but also the dew discharge outlet is not affected. Freezing does not hinder the smooth flow of melted water.

According to another preferred embodiment of the present invention, the dew collecting device can be placed in the refrigerating space of the refrigerating device in a particularly space-saving and simple manner, the dew collecting device is arranged in the refrigerating space of the refrigerating device and is made A dew collection trough supporting a finned evaporator in a vertical arrangement.

According to another preferred embodiment of the present invention, the dew collecting device is equipped with a support element as mounting means on its underside opposite the tank bottom, in order to support it on a mounting plane of the refrigerated space.

The support element, for example, can be made as support feet evenly distributed below, so that the dew collection channel becomes the most definite and load-bearing support on the mounting surface, so that it can act on a chip-free, deep-die forged, for example The resulting force on the inner plastic container of the refrigerator or freezer is approximately evenly distributed along the size of the dew collection trough. In addition, some unevenness of the support plane can be compensated by the design and arrangement of the feet. Therefore, the dew collection tank supporting the finned evaporator has played a role of stable placement on the installation surface to the greatest extent.

Another advantageous embodiment of the invention is that fixing elements are installed at the bottom edge of the dew collection tank, so that the heat conduction device remains in thermal contact with the cooling fins of the finned evaporator at least in its effective range.

Thus, the heat conducting device is brought into positive thermally conductive contact with the cooling fins of the finned evaporator in a simple manner, so that this function does not depend only on the careful work of the manufacturer.

In order to achieve a particularly precisely positioned arrangement of the heat conduction device while taking into account the heat conduction contact with the heat sink of the finned evaporator, according to another preferred embodiment of the present invention, the heat conduction device is made into a U-shaped section, Its U-shaped leg extends at least to approximately the height of the finned evaporator, and its base connected to the legs is supported on the end surface of the finned evaporator facing away from the dew collection tank. Furthermore, such a heat conduction device can be combined particularly quickly and easily into a unit with a finned evaporator, wherein the clear width of the legs of the U-section is moderately adjusted to the outer dimensions of the cooling fins, which are forced to be made by the assembly process. Comes into thermal contact with the heat transfer device. In addition, the support of the base on the finned evaporator provides the assembler with a simple way of telling the correct positioning of the heat conduction device and the finned evaporator.

According to another preferred embodiment of the invention. The base of the U-shaped heat conducting device has at least one opening for the ventilation of the finned evaporator, for example by forced ventilation with a fan, so that the finned evaporator is ventilated particularly effectively.

According to another preferred embodiment of the present invention, the notch on the base of the U-shaped section terminates at a distance in front of the lateral edge of the base, thereby forming a ribbon bridge for supporting the heat conducting device on the finned evaporator, then The particularly high air flow through the forced-ventilated finned evaporator is essentially independent of the heat conduction.

According to another preferred embodiment of the present invention, protrude a supporting element that has heat-conducting contact with finned evaporator in the gap of heat conduction device, to support temperature sensor, then the setting of temperature sensor is particularly reasonable, supports particularly economical simultaneously.

According to another preferred embodiment of the present invention, the heat conduction device is entirely made of a platinum-based metal material with good thermal conductivity, so the heat conduction device can be mass-produced, and thus the cost is particularly low.

Related metal materials with good thermal conductivity are aluminum, copper or similar metals. In addition, such an integral heat conduction can be particularly rapid, so that it can be combined cost-effectively with a finned evaporator.

Another preferred embodiment of the present invention is that a fixing part is mounted on the notch of the heat conduction device, which is detachably installed on the finned evaporator, and has a slot into which the edge segment defining the leg side of the notch is inserted.

Through these fixings, the legs of the U-shaped heat conduction device used as heat transfer platinum are not only firmly supported and fixed on the base surface of the U-shaped surface in a manner that does not substantially affect the air flow through the finned evaporator. At the same time, it is also in thermal contact with the cooling fins of the finned evaporator. In addition, the fastening element simultaneously serves to support the heat conduction device on the finned evaporator. The fin-type evaporator still adopts a clamp-shaped stop structure, which is connected with the dew collection device arranged in the refrigerated space, so as to obtain a very compact pre-assembled component composed of only a few parts.

Another preferred embodiment of the present invention is that the fixing body has a clamp-like support section in which the inlet and outlet ends of the pipe are detachably fixed.

Such a fastening of the pipe ends enables a space-saving installation of preassembled components in the intermediate support. In addition, this fastening enables the end of the pipe to be positively positioned in the correct position.

According to another preferred embodiment of the present invention, the legs of the heat conduction device extend to the bottom of the dew collection tank with their free ends, and are equipped with a water guide edge for melting water, so that the finned evaporator can be obtained during the melting process. The melted water flows into the dew collection tank according to special requirements.

The present invention is described as follows with the simplified representation of accompanying drawing, it is:

Fig. 1 shows a partial side sectional view of a household-air circulation-refrigeration device in the range of its cooling fan, on its rear wall a finned evaporator equipped with a heat conduction device and supported by a dew collection trough is arranged.

Fig. 2 is a front view of the refrigeration equipment in Fig. 1 .

Figure 3 is an exploded view of a finned evaporator with a heat transfer device and a dew collection trough supported thereon by fixing elements.

Fig. 4 is a front view, partly in section, of a finned evaporator with a heat transfer device and a dew collection trough.

Fig. 5 is a V-V cross-sectional view of a finned evaporator with a heat conduction device and a dew collection tank.

FIG. 1 shows a schematic partial sectional view of a domestic-air circulation-refrigeration and freezing combination 10 with an insulated housing 11. As shown in FIG. Inside the housing there is a not shown refrigerator and an insulated freezer 12 separate therefrom. A dew drain pipe 12.1 is housed on the bottom plate of the freezer near the rear wall of the freezer 12, and an air guide 13 arranged substantially along its width is arranged within the range of its rear wall, and there is An air inlet 14 . There is a fan 15 installed on the back wall of the freezer at its rear, which sucks the cold air in the freezer 12 through the air inlet 14, and then passes through an air guide installed on the back wall of the freezer to be transported to the The fin type evaporator 16 of the freezer 12 sides of its cover. The evaporator has a pipe 17 arranged in two rows with a curved path for conveying the refrigerant medium. This pipe has two approximately horizontal pipe end pipe sections in the range below the fan, wherein the pipe end pipe section 18 is between them. The free end is equipped with a throttling pipe 19 for conveying the refrigerant, while the other end pipe section 20 is connected with the suction pipe 21 .

As shown in Fig. 3 and Fig. 4, the curved path pipeline 17 that is made up of the straight pipe section and the connecting elbow connected to it, is equipped with fins 22 in the range near the connecting elbow, so that the finned evaporator 16 Have as large a heat transfer area as possible. The two large rectangular faces of the heat sink type evaporator 16 with cuboid shape are covered with the heat conduction surface that belongs to the heat conduction device 23 that is made into U-shape substantially, and its leg 24 forms heat conduction surface, and this heat conduction surface and heat dissipation fin 22 The side facing it is in heat conduction contact, and a water dripping bevel 25 is installed on the leg side of its free end. The two heat-conducting surfaces are connected on their end faces opposite the water-drop bevel 25 , forming the base of the U, to gaps 26 between free narrow strip-shaped bridges 27 arranged on the side edges. The U-shaped base is jointly formed by a bridging bridge 27 and a notch 26, and a folded edge 28 used as a stop protrudes from each heat conducting surface in the notch. In addition, a supporting element 29 also protrudes from the gap 26, which supports a temperature sensor 30 and keeps the heat conduction contact supported. The free edges of the sheet 22 remain in thermally conductive contact. When it is in the state of being sleeved on the finned evaporator 16, the bridge 27 is supported on the pipe section of the pipe 17 that protrudes from the side of the fin 22 and connects with the connecting elbow with the correct end position of the heat conduction device 23 . In order to support and fix the heat conduction device 23 on the finned evaporator 16, an integral plastic die-casting fixture 31 is installed at the notch end, which stretches into the notch 26 and is equipped with a clamping slot 32. On the fixture 31 In the mounted state on the finned evaporator 16, the free edge of the heat-conducting surface provided with the folded edge 28 is inserted and fixed therein. In order to support the fixing part 31 so that the heat conduction device 23 is supported on the finned evaporator 16, a clamping element 33 is provided between the clamping slots 32, and for the assembly position to be clear, it is relatively clamped with respect to the clamping slots. 32 is arranged asymmetrically, and has a clamping groove 34 made similar to a clamp, whereby the elasticity of the free clamp-shaped open end detachably installs the fixing member 31 on the parallel pipe section of the pipeline 17 . In addition to the clamping element 33, the fixing member 31 also has other clamping elements 35 on its opposite end to the clamping element 33, which has a clip-shaped draw groove 36 for detachable clamping. The pipe end sections 18 and 20 of the finned evaporator 16 are supported.

As shown in Figures 3 to 5, the dew collection tank 37 is used as a dew collection device, and also as a support and support device for the vertical installation of the evaporator 16. In order to support the finned evaporator 16 upright, a support Element 39. The support elements 39 stand in pairs side by side on the rectangular narrow side of the dew collection tank 37, and the dew collection tank 37 is substantially rectangular when viewed from above, wherein the distance between two pairs of support elements 39 installed opposite to each other should be able to accommodate The cooling fin group of the finned evaporator 16 composed of individual cooling fins 22 . The support element 39 has a clamp-shaped holding element 40 at its free end facing away from the groove base 37 . The end pipe sections of the pipes 17 protruding relative to the side of the fin group of the finned evaporator 16 and connected to each other by means of elbows are inserted and fixed therein in order to detachably support the finned evaporator 16 and collect dew slot 37.

The bottom of the tank 38 has a discharge pipe joint 42 used as a dew discharge outlet on its base plate 41, and the base plate 41 is made to be inclined to this. In order to prevent freezing, it is equipped with a heat conducting plate 43 made of aluminum or copper or similar material, which has a passage 44 used as a drain, and the free end of the passage is inserted into the drain pipe joint 42, so that the heat conducting plate 43 Position on the tank floor 41 . There is a clamp 45 on the side of the heat conduction plate 43, which is used to fix the groove heating device 46 made of a resistance heating device installed in the heat conduction protection tube. thermal contact. High-position lugs 47 are installed on the narrow right-angled sides of the heat conducting plate, which work together with the lock hook 48 integrally formed on the bottom of the groove 38, so that the heat conducting plate 43 is connected to the passage 44 for heating it in the discharge pipe joint 42 , Position and fix on the bottom plate 41 of the tank. The trough floor 41 is delimited on its long sides by side walls 49 which form the trough floor 38 together with the trough floor 41 and which at its free end is equipped with a fastening element 50 which is integrally formed with the plastic die-cast dew collection trough 37 . The dew collection trough 37 has a support element 51 on its opposite side to the trough floor 41, which extends as a mounting foot over the entire width of the trough floor 41, and on each end face of the dew collection trough 37 is equipped with a locking hook 48. There is one support element 51 , the remaining support elements 51 being evenly distributed therebetween support the dew collection trough 37 .

As shown in FIGS. 3 to 5 , the dew collection tank 37 is provided with a heat conduction plate 43 and a tank heating device 46 on its tank bottom plate 41 , and is detachably connected with the finned evaporator 16 . Adopt supporting element 39 free ends to be similar to clamp-shaped clamping element for this reason, dew collecting groove 37 is fixed together with the end straight section of pipeline 17 that protrudes relative to fin 22 sides, is then substantially U-shaped The heat conduction device 23 is used as the free end of the leg portion 24 of the heat conduction surface, and is covered on the fin 22 of the fin evaporator 16 from the front. The end positioning of the heat conduction device 23 is marked by its bridge 27, and the bridge 27 leans against the high position straight line end pipe section of the pipeline 17 protruding from the side of the relative heat sink 22 under the correct end position of the heat conduction device 23. In this position, the free end of the heat-conducting surface is guided by the fastening element 50 on its outer side facing away from the heat sink 22 . Thus, the free end of the heat conduction surface inserted into the groove bottom 38 is clamped and fixed on the dew collection groove 37 . In order to support the heat conduction device 23 on the finned evaporator 16, two fixed parts 31 (see FIGS. 4 and 5 ) arranged at a distance from each other are used, and they are accommodated on the sides of the notch 26 with their clamping slots 32 , and detachably fixed and clamped on the pipe section of the pipe 17 extending between the cooling fins 22 with the clamp-shaped clamping groove 34 on the clamping element 33 . In addition, as mentioned above, the fixing member 31 detachably fixes the end pipe sections 18 and 20 of the pipeline by using the slot 36 on the clamping member 35 thereof. The components thus assembled in advance are installed in the vicinity of the rear wall of the freezer 12, as shown in FIGS. 1 and 2 . For this reason, the support element 51 on the dew collection tank 37 is placed on the installation plane formed by the bottom surface of the freezer 12. During the placement process, the free end of the drain pipe joint 42 protruding relative to the support element 51 is inserted into the freezer. 12 on the bottom plate as the pipe joint 12.1 for the drain pipe, so that the position of the pre-assembled components inside the freezer 12 is installed and fixed to the greatest extent. In order to further fix the assembly composed of the finned evaporator 16, together with the heat conduction device 23 and the dew collection tank 37, an elastic fixing body 52 composed of foam elastic fixing elements is used to tension the pre-assembled assembly relative to the On the elbow of the pipeline 17 and the side wall of the freezer 12 protruding from the side of the cooling fin 22 . After this assembly work has been completed, the preassembled module is connected to the air guiding device 13, which at the same time acts as a housing for the module.

For mounting the dew collection trough 37 , in addition to the support elements 51 serving as mounting feet, for example positioning ribs on the side walls 49 or similar support ribs capable of bearing in the freezer compartment 12 are suitable.

Claims (15)

1. family expenses-air circulation-chilling unit, has a supporting arrangement that is installed in the heat radiation type evaporimeter in the refrigeration space of refrigerating box or household freezer, this evaporimeter has at least one pipeline that fin is housed, wherein have a thawing heater that plays the thawing effect for the heat radiation type evaporimeter, fallen thawing water when melting in order to collect, this thawing heater has a dew gathering-device with drowning scavenge port, it is used for supporting the heat radiation type evaporimeter, the dew gathering-device has clamping device and the installing mechanism of laying the heat radiation type evaporimeter, it can be installed on the supporting member in the chilling unit refrigeration space with them, it is characterized in that, dew gathering-device (37) be made into vertical supporting heat radiation type evaporimeter (16) bearing and, dew gathering-device (37) matches with the dew pipe (12.1) that thawing water is flowed out from refrigeration space (12) with its dew scavenge port (40), makes the device location in the refrigeration space (12).

2. according to the family expenses-air circulation-chilling unit of claim 1, it is characterized in that, dew gathering-device (37) is collected side at its thawing water towards heat radiation type evaporimeter (16) supporting member (39) is housed, stop mechanism (40) as clamping device is arranged, so that removably support heat radiation type evaporimeter (16) on it.

3. according to the family expenses-air circulation-chilling unit of claim 2, it is characterized in that, stop mechanism (40) is made clamp-shaped, and it makes heat radiation type evaporimeter (16) form fit connect ground and/or power transmission is bearing on its pipeline (17) for guiding refrigeration filling usefulness with connecting.

4. according to family expenses-air circulation-chilling unit of one in the claim 1 to 3, it is characterized in that, dew gathering-device (37) is collected side at its thawing water a panel of being made by good thermal conductive material (43) is installed, this panel extends to dew scavenge port (42) at least, and an available heater (46) heating.

5. according to family expenses-air circulation-chilling unit of one in the claim 1 to 4, it is characterized in that dew gathering-device (37) is dew feeder (a 37) form, the heat radiation type evaporimeter (16) that supporting is towered and is provided with.

6. according to the family expenses-air circulation-chilling unit of claim 5, it is characterized in that, dew feeder (37) is equipped with the supporting member (51) as installing mechanism below itself and bottom land (38) are opposed, so that it is placed on the mounting plane in the refrigeration space (12).

7. according to the family expenses-air circulation-chilling unit of claim 5 or 6, it is characterized in that, dew feeder (37) is provided with retaining element (50) in the edge of its bottom land (38), and these retaining elements make heat-transfer device (23) keep contacting with fin (22) heat conduction of heat radiation type evaporimeter (16) at least at its position that acts on heat-transfer device (23).

8. according to the family expenses-air circulation-chilling unit of claim 7, it is characterized in that, heat-transfer device (23) is made a U type type, its shank (24) extends to the height of about heat radiation type evaporimeter (16) at least, and its base portion that links to each other with shank (24) is bearing in heat radiation type evaporimeter (16) dorsad on the end face of dew feeder (37).

9. family expenses-air circulation according to Claim 8-chilling unit is characterized in that, makes the heat-transfer device (23) of U type, has a breach (26) for heat radiation type evaporimeter (16) ventilation at least at its base portion place.

10. according to the family expenses-air circulation-chilling unit of claim 9, it is characterized in that, the segment distance place of the breach (26) of U type base portion before distance base portion side stops, thereby formed the bridging (27) of long band shape, is bearing on the heat radiation type evaporimeter (16) by its heat-transfer device (23).

11. the family expenses-air circulation-chilling unit according to claim 9 or 10 is characterized in that, stretches out one section supporting member (29) that contacts with heat radiation type evaporimeter (16) heat conduction in the breach (26) of heat-transfer device (23), with supporting temperature sensor (30).

12. family expenses-air circulation-chilling unit of one in 11 is characterized in that according to Claim 8, heat-transfer device (23) is made by the platinum metals material (platinenartig) of good thermal conductivity is whole.

13. according to family expenses-air circulation-chilling unit of one in the claim 9 to 11, it is characterized in that, breach (26) on the heat-transfer device (23) retaining element (31) of having put on the shelf, it is removably mounted on the heat radiation type evaporimeter (16), and having draw-in groove (32), shank limits shank (24) edge section of breach (26) and inserts wherein.

14. the family expenses-air circulation-chilling unit according to claim 13 is characterized in that, fixture (31) has the clamping section (36) of the clamp-shaped of being similar to, and the inflow and the outflow end of pipeline (17) removably are fixed in wherein.

15. family expenses-air circulation-chilling unit of one in 13 according to Claim 8, it is characterized in that, the shank (24) of heat-transfer device (23) is stretched the bottom land (38) of past dew feeder (37) with its free end, and the hypotenuse (25) that shape is suitable for dripping thawing water is housed.

Images