Heat pump heating type dish washing machine air cooling module

Abstract

The utility model discloses a heat pump heating type dish-washing machine air cooling module which comprises a base shell, and a compressor and an evaporator are fixed to the top face of a bottom plate of the base shell. A supporting frame is formed or fixed to the top face of a bottom plate of the base shell, a water pump and a U-shaped connecting pipe are installed on the supporting frame, a water tank base plate is installed above the base shell, a bottom water circulation body is fixed to the bottom face of the water tank base plate, and a water inlet concave hole is formed in the middle of the top face of the bottom water circulation body. The U-shaped connecting pipe serves as a water flowing pipeline, the U-shaped outer sleeve is directly installed on the outer wall face of the U-shaped connecting pipe, the spiral winding channel arranged in the U-shaped outer sleeve makes direct contact with the outer wall face of the U-shaped connecting pipe, and the contact area is large, so that the heat exchange effect is very high, and the heat exchange efficiency is greatly improved. The U-shaped connecting pipe is small in size, small in occupied space and easy and convenient to manufacture, and the manufacturing cost is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of dishwasher-related equipment, and more specifically to an air cooling module of a heat pump heating type dishwasher. Background technology:

[0002] In today's dishwashers, one of the important parts is to heat the water, heating the incoming cold water to facilitate cleaning;

[0003] There are many existing heating methods, among which there are electric heating rods that directly heat water, and there are also heat pumps that heat water. For direct heating with electric heating rods, dry burning is prone to occur, and the power is also relatively high;

[0004] Using heat pump heat exchange mode, that is, using a heat exchange system composed of compressors and other components for heat exchange, its power is relatively low and the safety is high;

[0005] Among them, in the existing heat exchange method of the heat pump, the condenser connected to the compressor is coiled on the water flow pipe as an S-shaped coiled tube to exchange heat, and the S-shaped coiled tube is formed by bending and coiling a circular tube, and the outer wall of each ring body of the S-shaped coiled tube contacts the tube wall of the water flow pipe as a line contact or a point contact, so that the contact area between it and the water flow pipe is very small, and the heat exchange effect is not high. Therefore, it is necessary to increase the contact area, and the water flow pipe can only be coiled in an S shape, which is troublesome to manufacture and has a high manufacturing cost. Utility model content:

[0006] The utility model aims to overcome the deficiencies of the prior art and provides an air cooling module for a heat pump heating dishwasher. The U-shaped connecting pipe is used as a water flow conduit, and a U-shaped outer sleeve is directly installed on the outer wall surface of the U-shaped connecting pipe. The spiral winding channel provided in the U-shaped outer sleeve is directly in contact with the outer wall surface of the U-shaped connecting pipe, and the contact area is very large, so that the heat exchange effect is very high, and the heat exchange efficiency is greatly improved. The U-shaped connecting pipe has a small volume, occupies a small space, is simple and convenient to manufacture, reduces the manufacturing cost, and has low energy consumption and good energy-saving effect.

[0007] The solution of the utility model to solve the technical problem is:

[0008] A heat pump heating dishwasher air cooling module comprises a base shell, a compressor and an evaporator are fixed on the top surface of the bottom plate of the base shell; a support frame is formed or fixed on the top surface of the bottom plate of the base shell, a water pump and a U-shaped connecting pipe are installed on the support frame, a water tank bottom plate is installed above the base shell, a bottom water circulation body is fixed on the bottom surface of the water tank bottom plate, a water inlet concave hole is formed in the middle of the top surface of the bottom water circulation body, a water outlet hole is formed on the side wall of the water inlet concave hole, and the water outlet hole is connected to the bottom water circulation body. The water outlet connectors of the circulation body are connected, the water inlet end of the water pump is connected to the water outlet connector of the bottom water circulation body, the water outlet end of the water pump is connected to one end of the U-shaped connecting pipe, and the other end of the U-shaped connecting pipe is connected to the return water connector of a side wall of the conversion connection shell. The bottom surface of the edge of the bottom water circulation body is fixed with a conversion connection shell, the inner cavity of the conversion connection shell is connected to the return water connector, and the top edge of the bottom water circulation body is formed with a through hole extending downward, and the through hole is connected to the inner cavity of the conversion connection shell;

[0009] The return water connector is in communication with the inner cavity of the conversion connection shell, the inner cavity of the conversion connection shell is in communication with the through hole of the bottom water circulation body, the top surface edge of the bottom water circulation body is movably connected with a cover plate through a hinge shaft, the cover plate is pressed against the top surface of the bottom water circulation body and covers the corresponding through hole;

[0010] A heat exchange sleeve is fixed on the outer wall surface of the tube body of the U-shaped connecting tube, and a refrigerant inlet pipe and a refrigerant outlet pipe are connected to the heat exchange sleeve. The refrigerant inlet pipe is connected to the exhaust port of the compressor, the refrigerant outlet pipe is connected to the inlet of the drying filter, the outlet of the drying filter is connected to one end of the capillary tube, the other end of the capillary tube is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the return air port of the compressor.

[0011] The heat exchange sleeve body comprises a U-shaped outer sleeve, which is inserted into the outside of the U-shaped connecting pipe, and the annular end plates at both ends of the U-shaped outer sleeve are inserted into the corresponding vertical tube body parts, and the inner side walls of the annular end plates are welded and fixed to the inner side walls of the corresponding vertical tube body parts, and a spirally wound spiral spacer is fixed on the inner side wall of the U-shaped outer sleeve, and the outer side wall of the spiral spacer is welded and fixed to the inner side wall of the U-shaped outer sleeve, and the inner side wall of the spiral spacer is tightly attached to the outer side wall of the corresponding U-shaped connecting pipe, and a spiral winding channel is formed between the spiral spacer and the U-shaped outer sleeve, and a refrigerant inlet pipe is connected to one end of the U-shaped outer sleeve, and the refrigerant inlet pipe is communicated with the corresponding spiral winding channel, and a refrigerant outlet pipe is connected to the other end of the U-shaped outer sleeve, and the refrigerant outlet pipe is communicated with the corresponding spiral winding channel.

[0012] The U-shaped outer sleeve is fixed on the top surface of the support frame through a plurality of U-shaped clamping pieces, and the base of the water pump is fixed on the top surface of the support frame.

[0013] A liquid outlet is formed on one side of the water inlet concave hole, and the liquid outlet is communicated with a liquid outlet formed on the outer side wall of the water circulation body at the bottom.

[0014] A plurality of fans are fixed on the inner side of the evaporator, and the air outlets of the fans face the side plate on one side of the base shell. The side plate is formed with an air outlet hole, and the outer side of the evaporator is close to the air outlet hole.

[0015] The outstanding effects of the utility model are:

[0016] Compared with the prior art, it uses the U-shaped connecting pipe as a water flow channel, and directly installs a U-shaped outer sleeve on its outer wall surface. The spirally wound channel provided in the U-shaped outer sleeve directly contacts the outer wall surface of the U-shaped connecting pipe, and its contact area is very large, so that its heat exchange effect is very high, and the heat exchange efficiency is greatly improved, so that it can use a smaller U-shaped connecting pipe to meet the heat exchange needs, so that it occupies less space, is simple and convenient to manufacture, and reduces the manufacturing cost. Description of the drawings:

[0017] Figure 1 It is a partial structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model without the sink, sink chassis and other components;

[0019] Figure 3 yes Figure 2 A schematic diagram of the local structure without the bottom water circulation body and other components;

[0020] Figure 4 yes Figure 3 A partial top view of

[0021] Figure 5 It is a schematic diagram of the local structure between the U-shaped connecting pipe, the water pump and the bottom water circulation body;

[0022] Figure 6 It is a schematic diagram of the local structure of the U-shaped connecting pipe;

[0023] Figure 7 yes Figure 6 A partial cross-sectional view of

[0024] Figure 8 yes Figure 6 A partial cross-sectional view of a spiral spacer;

[0025] Fig. 9 It is a partial structural schematic diagram of the evaporator and the base shell;

[0026] Fig.10 It is a schematic diagram of the local structure of the base shell. Specific implementation method:

[0027] For example, see Figures 1 to 10 As shown, a heat pump heating dishwasher air cooling module comprises a base shell 10, on the top surface of the bottom plate of the base shell 10 a compressor 1 and an evaporator 2 are fixed;

[0028] The bottom plate of the base shell 10 at the evaporator 2 is formed with a downwardly extending mounting groove 101, a water storage groove 102 is formed on one side of the mounting groove 101, a blocking portion 103 is formed between the water storage groove 102 and the mounting groove 101, a through groove is formed on the blocking portion 103, the through groove connects the water storage groove 102 with the mounting groove 101, a plurality of upwardly extending mounting columns are formed on the bottom surface of the water storage groove 102, a water pump 104 is installed on all the mounting columns, and the water inlet end of the water pump 104 is close to the bottom surface of the water storage groove 102;

[0029] A support frame 20 is formed or fixed on the top surface of the bottom plate of the base shell 10 (in this embodiment, the support frame 20 is directly formed), and a water pump 21 and a U-shaped connecting pipe 30 are installed on the support frame 20, and the base of the water pump 21 is fixed on the top surface of the support frame 20.

[0030] A heat exchange jacket 60 is fixed on the outer wall surface of the tube body of the U-shaped connecting tube 30, and a refrigerant inlet pipe 61 and a refrigerant outlet pipe 62 are connected to the heat exchange jacket 60. The refrigerant inlet pipe 61 is connected to the exhaust port of the compressor 1, and the refrigerant outlet pipe 62 is connected to the inlet of the drying filter. The outlet of the drying filter is connected to one end of the capillary tube 3, and the other end of the capillary tube 3 is connected to the inlet of the evaporator 2. The outlet of the evaporator 2 is connected to the return air port of the compressor 1.

[0031] The heat exchange jacket 60 includes a U-shaped outer sleeve 63, which is inserted into the outside of the U-shaped connecting pipe 30, and the two ends of the U-shaped connecting pipe 30 extend out of the corresponding ends of the U-shaped outer sleeve 63. The annular end plates at both ends of the U-shaped outer sleeve 63 are inserted into the ends of the corresponding vertical tube body of the U-shaped connecting pipe 30, and the inner side wall of the annular end plate is welded and fixed to the inner side wall of the corresponding vertical tube body. A refrigerant inlet pipe 61 is connected to one end of the U-shaped outer sleeve 63, and a refrigerant outlet pipe 62 is connected to the other end of the U-shaped outer sleeve 63.

[0032] A spirally wound spiral spacer 64 is fixed on the inner side wall of the U-shaped outer sleeve 63. The outer side wall of the spiral spacer 64 is welded and fixed to the inner side wall of the U-shaped outer sleeve 63. The inner side wall of the spiral spacer 64 is in close contact with the outer side wall of the corresponding U-shaped connecting pipe 30. A spirally wound channel is formed between the spiral spacer 64 and the U-shaped outer sleeve 63. The refrigerant inlet pipe 61 and the refrigerant outlet pipe 62 are connected to the corresponding spirally wound channel. The refrigerant outlet pipe 62 and the refrigerant inlet pipe 61 are located near the end of the same side of the U-shaped outer sleeve 63. Figure 8 In the figure, the inner side wall of the U-shaped outer sleeve 63 is fixed with a spirally wound spiral spacer 64 (the spiral spacer 64 may be arranged on the inner side wall of the entire U-shaped outer sleeve 63, or the spiral spacer 64 may be arranged at the two vertical tube portions of the U-shaped outer sleeve 63, that is, the spiral spacer 64 is not arranged at the bending portion), and in production, the spiral spacer 64 may be omitted, and the U-shaped outer sleeve 63 may be directly sleeved on the outside of the U-shaped connecting pipe 30, such as Figure 7 shown.

[0033] The spirally wound channel in the heat exchange jacket 60 is in direct contact with the outer wall of the U-shaped connecting pipe 30, and its contact area is large, which greatly improves its heat exchange effect and efficiency, so that only one U-shaped connecting pipe 30 and the heat exchange jacket 60 are needed to heat the water flowing inside.

[0034] The U-shaped outer sleeve 63 is fixed on the top surface of the support frame 20 by a plurality of U-shaped clamping plates 5 (i.e., U-shaped pipe clamps). The specific connection method is that the U-shaped outer sleeve 63 is inserted into the groove of the U-shaped clamping plate 5, and the two ends of the U-shaped clamping plate 5 are fixed on the top surface of the support frame 20. The U-shaped outer sleeve 63 is clamped between the inner side wall of the groove of the U-shaped clamping plate 5 and the top surface of the support frame 20 to achieve installation and fixation.

[0035] Furthermore, a water tank chassis 40 is installed above the base shell 10, and a water tank (not shown in the drawings) is installed on the upper part of the water tank chassis 40. A bottom water circulation body 41 is fixed to the bottom surface of the water tank chassis 40, and a water inlet concave hole 42 is formed in the middle of the top surface of the bottom water circulation body 41. A water outlet hole is formed on the side wall of the water inlet concave hole 42. The water outlet hole is communicated with the water outlet connector 43 of the bottom water circulation body 41. The water inlet end of the water pump 21 is connected to the outlet of the bottom water circulation body 41 through a connecting pipe. The water connector 43, the water outlet end of the water pump 21 is connected to one end of the U-shaped connecting pipe 30, and the other end of the U-shaped connecting pipe 30 is connected to the return water connector 51 formed on the side wall of the conversion connection shell 50. The conversion connection shell 50 is fixed to the bottom surface of the edge of the bottom water circulation body 41, and the inner cavity of the conversion connection shell 50 is communicated with the middle flow through hole of the return water connector 51. The top edge of the bottom water circulation body 41 is formed with a through hole extending downward, and the through hole is communicated with the inner cavity of the conversion connection shell 50.

[0036] The return water connector 51 is in communication with the inner cavity of the conversion connection housing 50, and the inner cavity of the conversion connection housing 50 is in communication with the through hole of the bottom water circulation body 41. The top edge of the bottom water circulation body 41 is movably connected with a cover plate (omitted and not shown in the drawings) through a hinge shaft, and the cover plate is pressed against the top surface of the bottom water circulation body 41 and covers the corresponding through hole;

[0037] A liquid outlet is formed on one side of the water inlet recess 42, which is connected to a liquid outlet pipe outlet formed on the outer side wall of the bottom water circulation body 41, and the liquid outlet pipe outlet is connected to the water inlet of the water outlet control valve. The water outlet of the water outlet control valve is connected to the main water outlet pipe 9 fixed on a side plate of the base shell 10 through a connecting pipe (the water outlet control valve and the connecting pipe are omitted in the accompanying drawings). The water outlet end of the water pump 104 is also connected to the main water outlet pipe 9. The water outlet end of the water pump 104 is connected to the connecting pipe, and the connecting pipe connected to the water outlet of the water outlet control valve can be connected to both ends of a three-way connector, and another end of the three-way connector is connected to the feed port of the main water outlet pipe 9, and the discharge end of the main water outlet pipe 9 extends out of the outer side wall of one side plate of the base shell 10.

[0038] A plurality of fans 7 are fixed on the inner side of the evaporator 2, and the air outlets of the fans 7 face the side panels on one side of the base shell 10, and an air outlet hole 11 is formed on the side panel. The outer side of the evaporator 2 is close to the air outlet hole 11, and the air outlet hole 11 is covered with a filter mesh, which is installed on the corresponding side panel of the base shell 10.

[0039] In this embodiment, a mounting through hole is provided on one side plate of the base shell 10, and a main water inlet pipe is inserted into the mounting through hole. The outer end of the main water inlet pipe extends out of the base shell 10, and the inner end of the main water inlet pipe extends into the base shell 10 and is connected with the inlet of the main control valve fixed in the base shell 10. The outlet of the main control valve is connected to the water inlet connector 52 formed on the side wall of the conversion connection shell 50 and extending outward through a connecting pipe (some components such as the main control valve are omitted and not shown in the drawings), and the water inlet connector 52 is connected to the inner cavity of the conversion connection shell 50.

[0040] The valve bodies in this embodiment are all electric valve bodies, and all electrical components are electrically connected to the control host through electrical connecting lines. The control host is fixed in the outer shell of the dishwasher. It is a conventional structure and will not be described in detail here.

[0041] When in use, its main control valve (which is installed inside the base shell 10, and the water inlet of the main control valve extends out of the base shell 10 and is connected to the external water supply pipe, which is a conventional structure and is not shown in the drawings) is opened, and water enters the conversion connection shell 50, and the cover plate is pushed open, so that the water enters the top surface of the conversion connection shell 50 and is in the water tank bottom plate 40 and poured into the water tank installed on the water tank bottom plate 40. Generally, about three liters of water are poured into it (it can be controlled by manually controlling the opening time of the main control valve and observing the scale lines on the inner wall of the water tank). Then, the main control valve is closed, the compressor 1 runs, and the water pump 21 runs. After the refrigerant comes out of the compressor 1, it is a high-temperature and high-pressure gas. It enters the spiral winding channel, and the water that was previously poured is filled in the bottom water circulation body 41 and the water inlet recessed hole 42. It passes through the water The pump 21 is running to circulate the water, which enters the U-shaped connecting pipe 30, so that the water in the U-shaped connecting pipe 30 exchanges heat with the high-temperature and high-pressure refrigerant liquid in the spirally coiled channel, thereby increasing the temperature of the water flowing in the vertical tube body of the U-shaped connecting pipe 30. Then, the water enters the conversion connection shell 50, pushes the cover plate open, and then enters the water tank bottom plate 40 to realize the circulation of the water. Each time it passes through the U-shaped connecting pipe 30, it is heated once, and its general water temperature reaches 40° to 50° (a temperature sensor is fixed on the bottom surface of the bottom plate at the water outlet of the water inlet recess 42, and the sensing end of the temperature sensor passes through the top surface of the bottom plate and extends into the water outlet, so that the temperature of the water at the water outlet can be sensed. It is a conventional structure and will not be described in detail here, and it is not shown in the drawings). At this time, the compressor 1 can stop running;

[0042] The temperature of the refrigerant in the U-shaped connecting pipe 30 drops to a high-pressure liquid, and then enters the drying filter, enters the capillary tube 3, and forms a low-pressure liquid, and then enters the evaporator 2. The evaporator 2 is cooled by the fan 7, so that the refrigerant becomes a low-pressure gas and returns to the compressor 1.

[0043] Among them, when multiple fans 7 are in operation, they suck in external gas through the gap between the base shell 10 and the water tank, and blow the external gas together with the gas in the bottom shell 10 to the evaporator 2, so that the high-temperature components in the bottom shell 10, such as the surface of the compressor 1, are cooled after heat exchange with the air, and the gas after heat exchange is cooled by heat exchange with the evaporator 2 and then discharged from the air outlet hole 11, so that the temperature of the discharged gas is not high, thereby ensuring the normal operation of the equipment and reducing the impact on the external environment.

[0044] When the evaporator 2 is running, condensed water droplets will fall into the installation groove 101 and flow into the water storage groove 102. When the water reaches the discharge height (a liquid level sensor is installed at the water pump 104, and the position of the water sensed by its sensing end is the discharge height, which is set according to the position during installation), the water pump 104 is running to discharge the water in the water storage groove 102, and the effect is good.

Claims

1. A heat pump heating dishwasher air cooling module, comprising a base shell (10), a compressor (1) and an evaporator (2) being fixed on the top surface of the bottom plate of the base shell (10); characterized in that: A support frame (20) is formed or fixed on the top surface of the bottom plate of the base shell (10), a water pump (21) and a U-shaped connecting pipe (30) are installed on the support frame (20), a water tank bottom plate (40) is installed above the base shell (10), a bottom water circulation body (41) is fixed on the bottom surface of the water tank bottom plate (40), a water inlet concave hole (42) is formed in the middle of the top surface of the bottom water circulation body (41), a water outlet hole is formed on the side wall of the water inlet concave hole (42), the water outlet hole is communicated with a water outlet connector (43) of the bottom water circulation body (41), and the water inlet end of the water pump (21) is connected to the bottom water circulation body (41). The water outlet connector (43) is connected to the bottom water circulation body (41); the water outlet end of the water pump (21) is connected to one end of the U-shaped connecting pipe (30); the other end of the U-shaped connecting pipe (30) is connected to the return water connector (51) on a side wall of the conversion connection shell (50); the conversion connection shell (50) is fixed to the bottom surface of the edge of the bottom water circulation body (41); the inner cavity of the conversion connection shell (50) is in communication with the return water connector (51); the top edge of the bottom water circulation body (41) is formed with a through hole extending downwards; the through hole is in communication with the inner cavity of the conversion connection shell (50); The water return connector (51) is in communication with the inner cavity of the conversion connection housing (50); A heat exchange jacket (60) is fixed on the outer wall surface of the tube body of the U-shaped connecting tube (30), and a refrigerant inlet pipe (61) and a refrigerant outlet pipe (62) are connected to the heat exchange jacket (60). The refrigerant inlet pipe (61) is connected to the exhaust port of the compressor (1), and the refrigerant outlet pipe (62) is connected to the inlet of the drying filter. The outlet of the drying filter is connected to one end of the capillary tube (3), and the other end of the capillary tube (3) is connected to the inlet of the evaporator (2). The outlet of the evaporator (2) is connected to the return air port of the compressor (1).

2. The air cooling module of a heat pump heating dishwasher according to claim 1, characterized in that: The heat exchange sleeve (60) comprises a U-shaped outer sleeve (63), which is inserted into the outside of the U-shaped connecting pipe (30), and the annular end plates at both ends of the U-shaped outer sleeve (63) are inserted into the ends of the corresponding vertical tube body of the U-shaped connecting pipe (30), and the inner side wall of the annular end plate is welded and fixed to the inner side wall of the corresponding vertical tube body, and one end of the U-shaped outer sleeve (63) is connected to the refrigerant inlet pipe (61), and the other end of the U-shaped outer sleeve (63) is connected to the refrigerant outlet pipe (62).

3. The air cooling module of a heat pump heating dishwasher according to claim 2, characterized in that: A spirally wound spiral spacer (64) is fixed on the inner side wall of the U-shaped outer sleeve (63); the outer side wall of the spiral spacer (64) is welded and fixed to the inner side wall of the U-shaped outer sleeve (63); the inner side wall of the spiral spacer (64) is in close contact with the outer side wall of the corresponding U-shaped connecting pipe (30); a spirally wound channel is formed between the spiral spacer (64) and the U-shaped outer sleeve (63); and the refrigerant inlet pipe (61) and the refrigerant outlet pipe (62) are in communication with the corresponding spirally wound channel.

4. The air cooling module of a heat pump heating dishwasher according to claim 2, characterized in that: The refrigerant outlet pipe (62) and the refrigerant inlet pipe (61) are located near the end on the same side of the U-shaped outer sleeve (63).

5. The air cooling module of a heat pump heating dishwasher according to claim 2, characterized in that: The U-shaped outer sleeve (63) is fixed on the top surface of the support frame (20) via a plurality of U-shaped clamping pieces (5), and the base of the water pump (21) is fixed on the top surface of the support frame (20).

6. The air cooling module of a heat pump heating dishwasher according to claim 1, characterized in that: A liquid outlet is formed on one side of the water inlet recess (42), which is communicated with a liquid outlet formed on the outer side wall of the bottom water circulation body (41).

7. The air cooling module of a heat pump heating dishwasher according to claim 1, characterized in that: A plurality of fans (7) are fixed on the inner side of the evaporator (2), and the air outlets of the fans (7) face the side panels on one side of the base shell (10), and an air outlet hole (11) is formed on the side panel, and the outer side of the evaporator (2) is close to the air outlet hole (11).

Images