Heat exchange apparatus and heat pump apparatus for dishwasher

Abstract

A heat exchange apparatus (100), the heat exchange apparatus (100) comprising a first pipe body (1) and a second pipe body (2), the second pipe body (2) being partially located in the first pipe body (1), the first pipe body (1) being provided with a first flow channel (11), and the second pipe body (2) being provided with a second flow channel (21). The first pipe body (1) comprises a first face (131) and a second face (141). The heat exchange apparatus (100) has a thickness direction. The first face (131) and the second face (141) are located on two opposite sides of the first tube body (1) in the thickness direction, and at least one of the first face (131) and the second face (141) is a flat surface perpendicular to the thickness direction. At least one of the first surface (131) and the second surface (141) is designed to be a flat surface, thereby reducing the space occupied by the heat exchange apparatus (100) in the thickness direction, reducing the risk of deformation of the first pipe body (1), and further improving the heat exchange efficiency of the heat exchange apparatus (100). Further provided is a heat pump apparatus (200) for a dishwasher, said apparatus comprising a heat exchange apparatus (100). The heat exchange apparatus (100) comprises a first pipe body (1), the first pipe body (1) comprising a first surface (131) and a second surface (141). The heat exchange apparatus (100) has a thickness direction. The first surface (131) and the second surface (141) are located on two opposite sides of the first pipe body (1) in the thickness direction, and at least one of the first surface (131) and the second surface (141) is a flat surface perpendicular to the thickness direction.

Description

Heat exchange device and heat pump device for dishwashing machine TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, and in particular to a heat exchange device and a heat pump device for a dishwashing machine. BACKGROUND

[0002] The heat exchange device comprises a first pipe body and a second pipe body, the second pipe body is partially located in the first pipe body, the first pipe body has a first flow channel, the second pipe body has a second flow channel, the first flow channel and the second flow channel are fluidly isolated when the heat exchange device is in use, the first flow channel is used for containing a first fluid, the second flow channel is used for containing a second fluid, the first fluid and the second fluid exchange heat through the pipe wall of the second pipe body. In the related art, in order to increase the heat exchange efficiency of the heat exchange device, the second pipe body can be a bent pipe to increase the heat exchange area, and the first pipe body is a cylindrical corrugated sleeve pipe which wraps the second pipe body therein. The cylindrical corrugated sleeve pipe increases the occupied space of the heat exchange device. When the heat exchange device is working, the larger heat exchange device is prone to interfere with other components, causing the first pipe body to deform and affecting the heat exchange efficiency of the heat exchange device. SUMMARY

[0003] To this end, the present application provides a heat exchange device, which comprises a first pipe body and a second pipe body, the first pipe body is at least partially wrapped outside the second pipe body; the heat exchange device has a first flow channel, the first pipe body is a partial wall of the first flow channel, the second pipe body is a partial wall of the first flow channel, and the second pipe body has a second flow channel; the first pipe body comprises a first face and a second face, the heat exchange device has a thickness direction, along the thickness direction of the heat exchange device, the first face and the second face are respectively located on opposite sides of the first pipe body, and at least one of the first face and the second face is a plane perpendicular to the thickness direction of the heat exchange device.

[0004] At least one of the first face and the second face is a plane perpendicular to the thickness direction of the heat exchange device, which reduces the occupied space of the heat exchange device in the direction perpendicular to the thickness direction compared with the cylindrical corrugated sleeve pipe, and the heat exchange device is less likely to interfere with other components, thereby reducing the risk of deformation of the first pipe body.

[0005] The application provides a dishwasher heat pump device, which comprises a heat exchange device, the heat exchange device comprising a first pipe body and a second pipe body, the first pipe body being at least partially sleeved outside the second pipe body; the heat exchange device has a first flow channel, the first pipe body being a partial wall of the first flow channel, the second pipe body being a partial wall of the first flow channel, the second pipe body having a second flow channel, the first flow channel being capable of flowing through a detergent, and the second flow channel being capable of flowing through a refrigerant; the first pipe body comprises a first face and a second face, the heat exchange device having a thickness direction, along the thickness direction of the heat exchange device, the first face and the second face being respectively located on opposite sides of the first pipe body, and at least one of the first face and the second face being a plane perpendicular to the thickness direction of the heat exchange device.

[0006] The design that at least one of the first face and the second face in the heat exchange device is a plane perpendicular to the thickness direction reduces the occupied space of the heat exchange device in the direction perpendicular to the thickness direction, and miniaturizes the dishwasher heat pump device. BRIEF DESCRIPTION OF DRAWINGS

[0007] Fig. 1 is a perspective view of a heat exchange device according to an embodiment of the application;

[0008] Fig. 2 is another perspective view of the heat exchange device according to an embodiment of the application;

[0009] Fig. 3 is an exploded view of the heat exchange device according to an embodiment of the application;

[0010] Fig. 4 is a sectional view of the heat exchange device according to an embodiment of the application;

[0011] Fig. 5 is a schematic view of the first pipe body in the heat exchange device according to an embodiment of the application;

[0012] Fig. 6 is an enlarged view of part A in Fig. 5;

[0013] Fig. 7 is a schematic view of the second pipe body in the heat exchange device according to an embodiment of the application;

[0014] Fig. 8 is a perspective view of the heat exchange device according to an embodiment of the application;

[0015] Fig. 9 is a sectional view of the heat exchange device according to Fig. 8;

[0016] Fig. 10 is an exploded view of the heat exchange device according to Fig. 9;

[0017] Fig. 11 is a perspective view of the heat exchange device according to an embodiment of the application;

[0018] Fig. 12 is an exploded view of the heat exchange device according to an embodiment of the application;

[0019] Fig. 13 is a perspective view of the heat exchange device of Fig. 12;

[0020] Fig. 14 is an exploded view of the heat exchange device of Fig. 13;

[0021] Fig. 15 is a view of the first tube of the heat exchange device of Fig. 14;

[0022] Fig. 16 is a perspective view of a heat pump device of a dishwasher according to an embodiment of the present application;

[0023] Fig. 17 is a cross-sectional view of the heat pump device of Fig. 16. DETAILED DESCRIPTION

[0024] The heat exchanger according to the example embodiments of the present application will be described in detail below with reference to the accompanying drawings. The features of the embodiments and examples described below can be supplemented or combined with each other without conflict.

[0025] In the related heat exchange device, the heat exchange device includes a first tube 1 and a second tube 2, the second tube 2 is partially located in the first tube 1, the first tube 1 has a first flow channel 11, and the second tube 2 has a second flow channel 21. In use, the first flow channel 11 and the second flow channel 21 are at least partially fluidically isolated, the first flow channel 11 is configured to contain a first fluid, the second flow channel 21 is configured to contain a second fluid, and the first fluid and the second fluid exchange heat through the tube wall of the second tube 2. In general heat exchange devices, in order to increase the heat exchange efficiency of the heat exchange device 100, the second tube 2 can be a bent tube to increase the heat exchange area, and the first tube is a cylindrical corrugated sleeve into which the second tube is wrapped. The cylindrical corrugated sleeve increases the occupied space of the heat exchange device 100. When the heat exchange device 100 is in operation, the larger heat exchange device 100 is prone to interfere with other components, causing the first tube 1 to deform and affecting the heat exchange efficiency of the heat exchange device 100.

[0026] The heat exchange device 100 in the present application comprises a first pipe body 1 and a second pipe body 2, the first pipe body 1 is at least partially sleeved outside the second pipe body 2, the heat exchange device has a first flow channel 11, the first pipe body 1 is part of the wall of the first flow channel 11, the second pipe body 2 is part of the wall of the first flow channel 11, and the second pipe body 2 has a second flow channel 21. The first pipe body 1 comprises a first face 131 and a second face 141, the heat exchange device 100 has a thickness direction, along the thickness direction of the heat exchange device 100, the first face 131 and the second face 141 are respectively located on the opposite sides of the first pipe body 1, and at least one of the first face 131 and the second face 141 is a plane perpendicular to the thickness direction of the heat exchange device 100. At least one of the first face 131 and the second face 141 is a plane perpendicular to the thickness direction, which reduces the occupied space of the heat exchange device 100 in the thickness direction H compared with the cylindrical corrugated sleeve, the heat exchange device 100 is not easy to interfere with other components, the risk of deformation of the first pipe body 1 is reduced, and the heat exchange efficiency of the heat exchange device 100 is improved.

[0027] In an embodiment, the first pipe body 1 is made of thermoplastic material, for example, the first pipe body 1 is made of resin or resin mixture, or the first pipe body 1 is made of glass fiber material, the wall thickness of the first pipe body 1 made of the material is large and can withstand large pressure. In another embodiment, as shown in FIGS. 1 and 2, the first face 131 and the second face 141 are both planes, the first face 131 is parallel to the second face 141, in other words, the first pipe body 1 is a plate, the plate-shaped first pipe body 1 reduces the occupied space of the heat exchange device 100 in the thickness direction H relative to the cylindrical corrugated sleeve, and the corrugation in the cylindrical corrugated sleeve has large resistance to fluid.

[0028] Specifically, in an embodiment, as shown in FIG. 3, the first pipe body 1 comprises a first plate part 13 and a second plate part 14, the first flow channel 11 is partially arranged on the first plate part 13, and the first flow channel 11 is partially arranged on the second plate part 14; the first plate part 13 comprises a first surface 131, and the second plate part 14 comprises a second surface 141; the first plate part 13 is connected with the second plate part 14; the first plate part 13 and the second plate part 14 are connected by welding, and the first plate part 13 and the second plate part 14 can also be connected by gluing. In order to make the heat exchange device 100 exchange heat uniformly, in another embodiment, as shown in FIG. 5 and FIG. 6, at least one of the first plate part 13 and the second plate part 14 comprises a buckle 3, and the second pipe body 2 is fixedly connected or positionally connected with the buckle 3; at least one of the first plate part 13 and the second plate part 14 and the buckle 3 are an integral piece. The second pipe body 2 located in the first pipe body 1 is fixed, so as to reduce the shaking phenomenon of the second pipe body 2 due to fluid flow pressure during the operation of the heat exchange device 100, thereby affecting the heat exchange efficiency of the heat exchange device 100. Further, when the first pipe body 1 and the second pipe body 2 are regular shapes, as shown in FIG. 4, the center of the first pipe body 1 coincides with the center of the second pipe body 2, so as to improve the heat exchange uniformity of the heat exchange device 100.

[0029] Specifically, in an embodiment, as shown in FIG. 5, the buckle 3 comprises a first buckle 31 and a second buckle 3, and the first pipe body 1 comprises a first side wall 15 and a second side wall 16; the first side wall 15 and the second side wall 16 are both part of the first flow channel 11, and the first side wall 15 and the second side wall 16 are both perpendicular to the first surface 131; the first buckle 31 is connected with the first side wall 15, and the second buckle 3 is connected with the second side wall 16; the first buckle 31 has a first recess 3110 which is recessed towards the first side wall 15; the second pipe body 2 is at least partially located in the first recess 3110; the second buckle 3 has a second recess 3210 which is recessed towards the second side wall 16; and the second pipe body 2 is at least partially located in the second recess 3210. Specifically, the first buckle 31 and the second buckle 3 are elastic, as shown in FIG. 6, the first buckle 31 has an arc-shaped first clamping part 3120 which is located at the periphery of the second pipe body 2, in other words, the first clamping part 3120 blocks the second pipe body 2 from shaking randomly, further, the second buckle 3 has an arc-shaped second clamping part 3220 which is located at the periphery of the second pipe body 2; the first clamping part 3120 and the second clamping part 3220 can jointly enclose the second pipe body 2 in the first recess 3110 and the second recess 3210, thereby improving the stability of the second pipe body 2 in the first pipe body 1. Further, the first clamping part 3120 and the second clamping part 3220 are both elastic.

[0030] The first fluid and the second fluid flow in opposite directions when the heat exchange device 100 exchanges heat, which can improve the uniformity of heat exchange. In an embodiment, as shown in FIG. 2, the heat exchange device comprises a first inlet pipe 17 and a first outlet pipe 18, and the inner cavity of the first inlet pipe 17 and the inner cavity of the first outlet pipe 18 can communicate with the first flow channel 11. The second pipe body 2 comprises a second inlet pipe 22 and a second outlet pipe 23. The second inlet pipe 22 and the second outlet pipe 23 are arranged through the first pipe body 1. The first inlet pipe 17 and the second outlet pipe 23 are located on the same side of the heat exchange device, and the first outlet pipe 18 and the second inlet pipe 22 are located on the same side of the heat exchange device.

[0031] In order to improve the air tightness of the heat exchange device 100, in an embodiment, as shown in FIG. 2, the first outlet pipe 18 and the first inlet pipe 17 are integrated with the first plate part 13.

[0032] After the heat exchange device 100 stops working, in order to completely drain the first fluid in the first pipe body 1, in an embodiment, as shown in FIG. 7, the heat exchange device 100 comprises a drain pipe 4, the drain pipe 4 is connected with the first pipe body 1, the drain pipe 4 has a third flow channel 41, the third flow channel 41 communicates with the first flow channel 11; the drain pipe 4 and the first outlet pipe 18 are located on the same side of the heat exchange device; further, as shown in FIG. 7, during use of the heat exchange device, along the gravity direction G, the first face 131 is located above the second face 141, the drain pipe 4 is integrated with the second plate part 14, and the drain pipe 4 is at least partially protruding from the second face 141, in other words, the third flow channel 41 is lower than the first flow channel 11, so as to completely drain the fluid.

[0033] In an embodiment, in order to facilitate processing, as shown in FIG. 7, the drain pipe 4 is integrated with the second plate part 14.

[0034] When the fluid enters the second pipe body 2, in order to improve the stability of the second pipe body 2, in an embodiment, as shown in FIG. 2 and FIG. 3, the heat exchange device 100 comprises a connecting pipe 19, the connecting pipe 19 is connected with the first pipe body 1, the connecting pipe 19 comprises a pipe cavity 191, the pipe cavity 191 communicates with the first flow channel 11, and the second pipe body 2 is partially located in the pipe cavity 191; the connecting pipe 19 extends in a direction perpendicular to the first face 131, as shown in FIG. 3 and FIG. 8, the second pipe body 2 comprises a first section 24 and a second section 25, the first section 24 is arranged in parallel with the first face 131, and the second section 25 is arranged perpendicular to the first face 131; the second pipe body 2 is an integrated piece, and the connecting pipe 19 is sealingly connected with the second pipe body 2. Among them, the second section 25 is partially located in the pipe cavity 191, and the second section 25 partially protrudes from the connecting pipe 19, which facilitates the communication between the second flow channel 21 and the external flow channel.

[0035] In an embodiment, as shown in FIG. 9, the heat exchange device 100 comprises a sealing member 6, the sealing member 6 seals the connecting pipe 19, the sealing member 6 is connected with the second pipe body 2, and specifically, as shown in FIG. 3, the sealing member 6 is partially located in the pipe cavity 191, the sealing member 6 is partially located outside the second section 25, and the sealing member 6 is partially located outside the connecting pipe 19. In an embodiment, the sealing member 6 is an ethylene propylene diene rubber (EPDM) sealing ring. The sealing member 6 seals the connecting pipe 19 and the second pipe body 2 by interference fit.

[0036] In an embodiment, as shown in FIG. 1, the first pipe body 1 comprises a first pipe 121, a second pipe 122, and a third pipe 123, the first pipe 121 and the second pipe 122 are straight pipes, and the third pipe 123 is a U-shaped pipe, the first pipe 121 is connected with one end of the third pipe 123, the second pipe 122 is connected with the other end of the third pipe 123, and the extension direction of the first pipe 121 is parallel to the extension direction of the second pipe 122, that is, the first pipe body 1 can be a U-shaped pipe body, and the first pipe body 1 can be formed by connecting multiple U-shaped pipe bodies, as shown in FIG. 1. The first pipe body 1 is integrally formed. The second pipe body 2 can have the same shape as the first pipe body 1.

[0037] In order to improve the compressive strength of the first pipe body 1, in an embodiment, as shown in FIG. 1 and FIG. 4, the heat exchange device comprises a connecting portion 5, the connecting portion 5 is at least partially located in the gap between the adjacent first pipe 121 and the second pipe 122, and the adjacent first pipe 121 and the second pipe 122 are respectively connected with the connecting portion 5. The connecting portion 5 plays a role of a reinforcing rib. In an embodiment, the number of the connecting portion 5 can be multiple. In an embodiment, as shown in FIG. 2, the first pipe body 1 has a hole 5100, and the hole 5100 penetrates the connecting portion 5.

[0038] The application provides a dishwasher heat pump device, which comprises a heat exchange device 100. The heat exchange device 100 comprises a first pipe body 1 and a second pipe body 2. The first pipe body 1 is at least partially sleeved outside the second pipe body 2. The heat exchange device has a first flow channel 11. The first pipe body 1 is a partial wall of the first flow channel 11. The second pipe body 2 is a partial wall of the first flow channel 11. The second pipe body 2 has a second flow channel 21. The first flow channel can be used for flowing through a detergent. The second flow channel 21 can be used for flowing through a refrigerant. The first pipe body 1 comprises a first face 131 and a second face 141. The heat exchange device 100 has a thickness direction. Along the thickness direction of the heat exchange device 100, the first face 131 and the second face 141 are respectively located on opposite sides of the first pipe body 1. At least one of the first face 131 and the second face 141 is a plane perpendicular to the thickness direction of the heat exchange device 100. The design that at least one of the first face 131 and the second face 141 of the heat exchange device is a plane perpendicular to the thickness direction reduces the occupied space of the heat exchange device 100 in the thickness direction. The heat exchange device 100 is not easy to interfere with other components. The risk of deformation of the first pipe body 1 is reduced. The heat exchange efficiency of the heat exchange device 100 in the dishwasher heat pump device is improved.

[0039] For example, as shown in FIG. 3, the second pipe body 2 has a main body part 311, an inlet end part 312 and an outlet end part 313. The inlet of the second pipe body 2 is arranged at the inlet end part 312. The outlet of the second pipe body 2 is arranged at the outlet end part 313. The main body part 311 is located inside the first pipe body 1. The inlet end part 312 and the outlet end part 313 are both located outside the first pipe body 1. As shown in FIG. 1, the heat exchange device has a first flow channel 11. The first flow channel 11 is located between the first pipe body 1 and the second pipe body 2. Specifically, the first flow channel 11 is located between the inner wall of the first pipe body 1 and the outer wall of the second pipe body 2. The second pipe body 2 has a second flow channel 21. In an embodiment, as shown in FIG. 10, the first pipe body 1 comprises a light-transmitting part 28. The light-transmitting part 28 comprises a light-transmitting material. The light-transmitting part 28 is at least partially arranged in position with the second pipe body 2. Specifically, a face perpendicular to the first direction Y of the heat exchange device 100 is defined as a first projection face. For example, as shown in FIG. 4, the first direction Y can be parallel to the thickness direction T. The orthographic projection of the light-transmitting part 28 on the first projection face at least partially coincides with the orthographic projection of the second pipe body 2 on the first projection face. The light-transmitting rate of the light-transmitting material is greater than or equal to 25%. When laser welding is performed, the laser can penetrate the first pipe body 1, so that the welding effect is more optimal.

[0040] In order to facilitate the installation of the second tube body 2 in the first tube body 1, in an embodiment, as shown in FIG. 10, the first tube body 1 comprises a first shell 101 and a second shell 102, the first shell 101 comprises the first plate part 13, the second shell 102 comprises the second plate part 14, the first shell 101 and the second shell 102 are fixedly connected, and along the thickness direction T of the heat exchange device 100, the first shell 101 is at least partially located on one side of the second shell 102; wherein the first shell 101 at least partially comprises the light-transmitting part 28, the first shell 101 and the second shell 102 are weldedly connected, and further, the second shell 102 at least partially comprises the light-absorbing part 29, the light-absorbing part 29 is black, wherein the light-transmitting part 28 and the light-absorbing part 29 are weldedly connected, so that the welding effect is more optimal.

[0041] When the first shell 101 and the second shell 102 are welded, in an embodiment, as shown in FIG. 10, the light-transmitting part 28 has a groove 211 recessed away from the second tube body 2, the light-absorbing part 29 comprises a boss 221 protruding away from the second tube body 2, and the boss 221 is at least partially located in the groove 211; wherein there is a gap 2211 between the boss 221 and the groove 211, which is arranged to facilitate and firmly install the first shell 21 and the second shell 102, and in an embodiment, as shown in FIG. 10, along the thickness direction T of the heat exchange device 100, the first shell 101 is at least partially located on one side of the second shell 102, for example, the first shell 101 is located above the second shell 102, when the first shell 101 and the second shell 102 are laser welded, the laser is shot from the vicinity of the groove 211 of the first shell 101, at this time, the boss 221 is partially melted to fill the gap 2211, so that the groove 211 and the boss 221 are fusion-weldedly connected.

[0042] Further, the first tube body 1 is a thermoplastic material, specifically, the first shell 101 is any one of polypropylene plastic, polyethylene plastic, polyvinyl chloride plastic, and polyamide; the second shell 102 comprises any one of polypropylene plastic, polyethylene plastic, polyvinyl chloride plastic, and polyamide; and the second shell further comprises black filler. The second tube body 2 is a metal material. Wherein the light-absorbing part 29 can be a dark powder, such as black toner, added in the thermoplastic material.

[0043] In an embodiment, the second shell 102 is a light-absorbing shell as a whole.

[0044] The heat exchange device 100 comprises a first inlet pipe 17, the pipeline of the first inlet pipe 17 communicates with the first flow channel 11, and specifically, the first inlet pipe 17 is used for fluid to enter the first flow channel 11; in an embodiment, as shown in FIG. 1, in order to improve the sealing performance of the heat exchange device 100 and facilitate manufacturing, the first inlet pipe 17 is arranged on the second shell 102, and the first inlet pipe 17 and the second shell 102 are an integral piece.

[0045] In order to improve the heat exchange uniformity of the heat exchange device 100, a plane parallel to the thickness direction T of the heat exchange device 100 is defined as a second projection plane, the central projection of the wall of the first flow channel 11 on the second projection plane coincides with the central projection of the wall of the second flow channel 21 on the first projection plane; for example, the central projection of the wall of the first flow channel 11 on the second projection plane and the central projection of the wall of the second flow channel 21 on the first projection plane are both circular, that is, the first pipe body 1 and the second pipe body 2 are coaxially arranged, the distance of the fluid to the inner wall of the first pipe body 1 in the first flow channel 11 is equal, and the flow resistance of the fluid is equal, so that the heat exchange uniformity is improved.

[0046] In an embodiment, as shown in FIGS. 5 and 6, the first pipe body 1 includes a buckle 3, and part of the second pipe body 2 is connected with the buckle 3 in position, and the buckle 3 is used to fix the position of the second pipe body 2. Specifically, as shown in FIG. 5, the buckle 3 is located on the second shell 102, and the buckle 3 includes a first buckle 31 and a second buckle 32, and the first buckle 31 and the second buckle 32 have a gap 323 therebetween, and part of the second pipe body 2 is located in the gap 323.

[0047] The heat exchange device 100 includes a second inlet pipe 22, and the pipeline of the second inlet pipe 22 communicates with the second flow channel 21, which is equivalent to the second inlet pipe 22 for the fluid to enter the second flow channel 21. In an embodiment, as shown in FIG. 1, in order to improve the sealing performance of the second pipe body 2, at least part of the second inlet pipe 22 is an integral part of the second pipe body 2, as shown in FIG. 1, the second inlet pipe 22 penetrates the first shell 101; the first shell 101 includes a connecting pipe 19, and the connecting pipe 19 is an integral part of the first shell 101, the second inlet pipe 22 penetrates the connecting pipe 19, and the wall of the second inlet pipe 22 is sealingly connected with the connecting pipe 19.

[0048] Since the wall of the second inlet pipe 22 needs to be sealingly connected with the pipe opening of the connecting pipe 19, in an embodiment, as shown in FIG. 9, the heat exchange device 100 includes a sealing member 6, the sealing member 6 is at least partially located in the connecting pipe 19, the sealing member 6 is connected with the second inlet pipe 22, and the second inlet pipe 22 penetrates the sealing member 6; in order to facilitate the installation of the sealing member 6, in an embodiment, for example, as shown in FIGS. 7 and 3, the sealing member 6 is in a cylindrical shape, the sealing member 6 includes a first port 51, a second port 52 and a third port 53, along the thickness direction T of the heat exchange device 100, the second port 52 is located between the first port 51 and the third port 53, and the sealing member 6 extends from the first port 51 to the third port 53 at least partially through the second port 52, wherein the first port 51 is located outside the connecting pipe 19, the third port 53 is located inside the connecting pipe 19, and the second port 52 is at least partially located inside the connecting pipe 19, wherein the second port 52 is sealingly connected with the connecting pipe 19.

[0049] In an embodiment, the light-transmitting portion 28 has a groove portion 211, the light-transmitting portion 28 comprises a first side surface 282 and a second side surface 283, the first side surface 282 and the second side surface 283 are located at two sides of the light-transmitting portion 28 along the thickness direction of the heat exchange device 100, the first side surface 282 is away from the second surface 141 relative to the second side surface 283, the groove portion 211 is recessed from the first side surface 282 to the direction away from the second tube body 2, the light-absorbing portion 29 comprises a third side surface 284, a fourth side surface 285 and a boss portion 221, the third side surface 284 is away from the first surface 131 relative to the fourth side surface 285 along the thickness direction of the heat exchange device 100, the boss portion 221 is protruded from the third side surface 284 to the direction away from the second tube body 2, and the boss portion 221 is at least partially located in the groove portion 211; in an embodiment, as shown in FIG. 9, the connecting pipe 19 comprises a limiting portion 251, the limiting portion 251 is away from the boss portion 221 relative to the groove 211; the limiting portion 251 is connected with the first port portion 51. The limiting portion 251 abuts against the sealing component 6, specifically, as shown in FIG. 9, the first port portion 51 comprises a bottom end 511, the bottom end 511 is away from the second port portion 52 relative to the third port portion 53, the limiting portion 251 comprises a top end 252, the top end 252 is away from the second tube body 2 relative to the first tube body 1; the bottom end 511 abuts against the top end 252.

[0050] Specifically, a plane perpendicular to the thickness direction T of the heat exchange device 100 is defined as a third projection plane, the orthographic projection of the second port portion 52 on the third projection plane is located within the orthographic projection of the first port portion 51 on the third projection plane, and the orthographic projection of the second port portion 52 on the third projection plane is located within the orthographic projection of the third port portion 53 on the third projection plane. In other words, the sealing component 6 is a cylinder with large ends and a small middle.

[0051] Further, in an embodiment, as shown in FIG. 1, the first tube body 1 comprises a first surface 131 and a second surface 141, the first surface 131 and the second surface 141 are located at opposite sides of the first tube body 1 along the thickness direction T of the heat exchange device 100, and at least one of the first surface 131 and the second surface 141 is a plane perpendicular to the thickness direction T. That is, the first tube body 1 can be a plate, and relative to the arc-shaped or irregular first surface 131 or second surface 141, the volume of the first tube body 1 is reduced along the thickness direction T of the heat exchange device 100.

[0052] In order to reduce the weight of the heat exchange device 100, in an embodiment, as shown in FIG. 11, the heat exchange device 100 has a plurality of through holes 50, the through holes 50 pass through the first tube body 1, and the first tube body 1 between the through holes 50 corresponds to a reinforcing rib. That is, while the weight of the heat exchange device 100 is reduced, the compressive strength of the first tube body 1 is not reduced.

[0053] In order to facilitate water to be drained completely, the heat exchange device 100 comprises a drain pipe 4 connected with the second shell 102. In an embodiment, the drain pipe 4 is integrated with the second shell 102, as shown in Fig. 8. Specifically, the drain pipe 4 has a third flow channel 41 in communication with the first flow channel 11, and the third flow channel 41 is lower than the first flow channel 11 along the gravity direction G so that the fluid can be drained completely.

[0054] In another aspect, the heat exchange device 100 comprises a housing 110, the housing 110 comprises the first pipe body 1 and the second pipe body 2 partially located in the first pipe body 1, and the heat exchange device 100 has the first flow channel 11, the first pipe body 1 being a partial wall of the first flow channel 11 and the second pipe body 2 being a partial wall of the first flow channel 11.

[0055] In some embodiments, the heat exchange device 100 comprises a valve seat 80 and a valve core 8, the valve seat 80 has a cavity 310, the valve core 8 is installed in the valve seat 80 and located in the cavity 310, and the first pipe body 1 is at least partially integrated with the valve seat 80, as shown in Fig. 14.

[0056] In an embodiment, the heat exchange device 100 has a first inlet pipe 17, and the first pipe body 1 is at least partially integrated with the first inlet pipe 17. Specifically, the first inlet pipe 17 extends away from the valve seat 80 from the housing 110, as shown in Fig. 11. The valve core 8 has a first state and a second state, the first flow channel 11 is in communication with an inner cavity of the first inlet pipe 17 when the valve core 8 is in the first state, and the first flow channel 11 is fluidically isolated from the inner cavity of the first inlet pipe 17 when the valve core 8 is in the second state, or the valve core 8 is used to control the one-way flow of fluid from the inner cavity of the first inlet pipe 17 to the first flow channel 11. Specifically, the valve core 8 has a valve port 82 in communication with the first flow channel 11 and the inner cavity of the first inlet pipe 17 in the first state, as shown in Fig. 12. More specifically, the heat exchange device 100 comprises a driving part 81 capable of controlling the valve core 8 to be in the first state or the second state, and the driving part 81 is fixedly connected with the valve seat 80, as shown in Fig. 14.

[0057] In another embodiment, the heat exchange device 100 comprises a valve seat 80 and a valve 9, the valve seat 80 has a cavity 310, the valve 9 comprises a housing part 91 and a valve core part 92, the valve core part 92 is located in the housing part 91, the housing part 91 is at least partially located in the cavity 310, and the valve 9 has a valve port 93; the valve 9 is installed in the valve seat 80, the valve port 93 is in communication with the first flow channel 11, and the first pipe body 1 is at least partially integrated with the valve seat 80, as shown in Fig. 12. The valve 9 is installed in the valve seat 80 to directly control the water inlet of the heat exchange device 100, thereby reducing the occupied space of the heat exchange device 100.

[0058] In an embodiment, the heat exchange device 100 has a first inlet pipe 17, the first pipe body 1 is at least partially integrated with the first inlet pipe 17. The valve 9 has a first working state and a second working state, when the valve 9 is in the first working state, the inner cavity of the first inlet pipe 17 is in communication with the valve port, when the valve 9 is in the second working state, the inner cavity of the first inlet pipe 17 is fluidly isolated from the valve port. The valve 9 can be switched from the first working state to the second working state, and the valve 9 can be switched from the second working state to the first working state. Alternatively, the valve 9 is used to control the one-way flow of fluid from the inner cavity of the first inlet pipe 17 to the first flow channel 11.

[0059] In an embodiment, the driving part 81 is fixedly connected with the valve seat 80 by screwing, as shown in FIG. 1. In an embodiment, the housing 110 includes screw posts 320, which are arranged to protrude from the valve seat 80 in a direction away from the cavity 310 in the thickness direction T of the heat exchange device 100, as shown in FIG. 1. The screw posts 320 are integrated with the valve seat 80. The screw posts 320 are arranged to facilitate the installation of the valve. Specifically, the number of screw posts 320 can be two or three, which are evenly distributed around the valve seat 80. Specifically, the screw posts 320 have screw holes 321, and the valve seat 80 has through holes 322, which pass through the screw posts 320 and are located between the cavity 310 and the screw holes 321. The through holes 322 make the wall thickness of the screw posts 320 more uniform, facilitating injection molding. At the same time, the wall of the through hole 322 is similar to a reinforcing rib, which can significantly improve the bending stiffness of the screw post 320.

[0060] In an embodiment, the flow direction of the fluid in the first flow channel 11 is opposite to that of the fluid in the second pipe body 2, which can improve the uniformity of heat exchange of the heat exchange device 100.

[0061] In an embodiment, the housing 110 includes a first housing 101 and a second housing 102, which are fixedly connected as shown in FIG. 12; that is, the first housing 101 and the second housing 102 are split type, which is conducive to the installation of the heat exchange device 100. Specifically, the fixed connection 25 includes welding connection or adhesive connection and the like. Further, at least one of the first housing 101 and the second housing 102 is integrated with the valve seat 80 and the first inlet pipe 17.

[0062] In an embodiment, along the thickness direction T of the heat exchange device 100, the drain pipe 4 is away from the valve seat 80 relative to the first inlet pipe 17, in other words, along the thickness direction T of the heat exchange device 100, the first inlet pipe 17 is located between the valve seat 80 and the drain pipe 4, which facilitates the drainage of water.

[0063] In an embodiment, as shown in Fig. 12, the valve seat 80 comprises a wall 33, the thickness of the wall 33 is 1.5mm-2.4mm, so as to reduce material consumption while maintaining the strength of the valve seat 80, and over-thick wall thickness is easy to cause uneven cooling and shrinkage marks; the height of the valve seat 80 is h, 22mm≤h≤24mm, and the valve seat 80 has a caliber 34, the caliber 34 is 19mm-21mm.

[0064] A heat exchanger, as shown in Fig. 11, the heat exchanger 1001 comprises a shell 110, a second pipe body 2, the second pipe body 2 is partially located in the shell 110, the heat exchanger 1001 has a first flow channel 11, the shell 110 is part of the wall of the first flow channel 11, and the second pipe body 2 is part of the wall of the first flow channel 11; the heat exchanger 1001 comprises a valve seat 80, the valve seat 80 has a cavity 310, the cavity 310 is in communication with the first flow channel 11, and the shell 110 is at least partially integrated with the valve seat 80. The valve seat 80 is directly connected with the valve, so as to reduce the space occupied by the heat exchanger 1001.

[0065] As shown in Fig. 14, the heat exchange device 100 comprises a first sealing component 1151, the first sealing component 1151 is used to seal the pipe opening of the first fixed part 115, the first sealing component 1151 is partially located in the first fixed part 115, the first fixed part 115 and the second pipe body 2 are tightly connected with the first sealing component 1151, and the first sealing component 1151 is at least partially located between the first fixed part 115 and the second pipe body 2; in other words, the first sealing component 1151 is partially in abutment with the inner wall of the first fixed part 115, and the first sealing component 1151 is partially in abutment with the outer wall of the second pipe body 2. Among them, the first sealing component 1151 is a plastic part with large ends and a small middle.

[0066] In an embodiment, as shown in Fig. 13, the first reinforcing rib 5 is at least partially located in the through hole 50, and the heat exchange device 100 comprises a plurality of first reinforcing ribs 501, the first reinforcing rib 501 comprises a circular ring part 510 and a plurality of long strip parts 520, the long strip part 520 is connected with the circular ring part 510, the plurality of long strip parts 520 are distributed in the circumferential direction of the circular ring part 510, the plurality of long strip parts 520 are partially connected with the first pipe 121, and the plurality of long strip parts 520 are partially connected with the second pipe 122. In another embodiment, the long strip part 520 can be arc-shaped, and directly connected with the first pipe 121 and the second pipe 122.

[0067] The dishwasher heat pump device 200 provided by the application, as shown in FIGS. 16 and 17, comprises a heat exchange device 100, the heat exchange device 100 comprises a first pipe body 1 and a second pipe body 2, the first pipe body 1 is at least partially sleeved outside the second pipe body 2; the heat exchange device has a first flow channel 11, the first pipe body 1 is part of the wall of the first flow channel 11, the second pipe body 2 is part of the wall of the first flow channel 11, and the second pipe body 2 has a second flow channel 21; the first pipe body 1 comprises a light-transmitting part 28, the light-transmitting part 28 comprises a light-transmitting material, the light-transmitting part 28 is at least partially arranged in position with the second pipe body 2, and the light-transmitting rate of the light-transmitting material is greater than or equal to 25%.

[0068] The dishwasher heat pump device 200 of the application, as shown in FIGS. 14, 16 and 17, comprises a heat exchange device 100, the heat exchange device 100 comprises a valve seat 80 and a valve core 8, the valve seat 80 has a cavity 310, the valve core 8 is installed on the valve seat 80, the valve core 8 is located in the cavity 310, and the first pipe body 1 is at least partially an integral part of the valve seat 80; alternatively, the heat exchange device 100 comprises a valve seat 80 and a valve 9, the valve seat 80 has a cavity 310, the valve 9 comprises a shell part 91 and a valve core part 92, the valve core part 92 is located in the shell part 91, the shell part 91 is at least partially located in the cavity 31, the valve 9 has a valve port 93, the valve 9 is installed on the valve seat 80, the valve port 93 is in communication with the first flow channel 11, and the first pipe body 1 is at least partially an integral part of the valve seat 80. The valve core 8 is installed on the valve seat 80 or the valve 9 is installed on the valve seat 80 to directly control the water inlet in the heat exchange device 100, reduce the occupied space of the heat exchange device 100, and facilitate the miniaturization of the dishwasher heat pump device 200 using the heat exchange device 100.

Claims

1. A heat exchange device, characterized by, The heat exchange device (100) comprises a first pipe body (1) and a second pipe body (2), the first pipe body (1) is at least partially sleeved outside the second pipe body (2); The heat exchange device has a first flow channel (11), the first pipe body (1) is a partial wall of the first flow channel (11), the second pipe body (2) is a partial wall of the first flow channel (11), and the second pipe body (2) has a second flow channel (21); The first pipe body (1) comprises a first face (131) and a second face (141), the heat exchange device (100) has a thickness direction, along the thickness direction of the heat exchange device (100), the first face (131) and the second face (141) are located on opposite sides of the first pipe body (1) respectively, and at least one of the first face (131) and the second face (141) is a plane perpendicular to the thickness direction of the heat exchange device (100).

2. The heat exchange device according to claim 1, wherein The first face (131) and the second face (141) are both planes perpendicular to the thickness direction of the heat exchange device, and the first face (131) is parallel to the second face (141); The first pipe body (1) is made of a thermoplastic material, and the second pipe body (2) is made of a metal material.

3. The heat exchange device according to claim 1 or 2, characterized in that The first pipe body (1) comprises a first plate part (13) and a second plate part (14), the first plate part (13) and the second plate part (14) are both walls of the first flow channel (11), and the first plate part (13) is connected with the second plate part (14); The first plate part (13) comprises the first face (131), the second plate part (14) comprises the second face (141), and at least one of the first plate part (13) and the second plate part (14) comprises a buckle (3), and the second pipe body (2) is fixedly connected or positionally connected with the buckle (3).

4. The heat exchange device according to any one of claims 1, 2 and 3, characterized by, The heat exchange device comprises a first inlet pipe (17) and a first outlet pipe (18), the inner cavity of the first inlet pipe (17) and the inner cavity of the first outlet pipe (18) can communicate with the first flow channel (11), the second pipe body (2) comprises a second inlet pipe (22) and a second outlet pipe (23), the second inlet pipe (22) and the second outlet pipe (23) are arranged through the first pipe body (1), the first inlet pipe (17) and the second outlet pipe (23) are located on the same side of the heat exchange device (100), and the first outlet pipe (18) and the second inlet pipe (22) are located on the same side of the heat exchange device (100). The heat exchange device (100) comprises a drain pipe (4), the drain pipe (4) is connected with the first pipe body (1), the drain pipe (4) has a third flow channel (41), the third flow channel (41) communicates with the first flow channel (11), and the drain pipe (4) and the first outlet pipe (18) are located on the same side of the heat exchange device (100).

5. The heat exchange device according to any one of claims 1, 2, 3, and 4, characterized by, The heat exchange device (100) comprises a connecting pipe (19) connected with the first pipe body (1), the connecting pipe (19) comprises a pipe cavity (191) in communication with the first flow channel (11), and the second pipe body (2) is partially located in the pipe cavity (191), and the connecting pipe (19) extends along the thickness direction of the heat exchange device; The second pipe body (2) comprises a first section (24) and a second section (25), the first section (24) is arranged in parallel with the first surface (131), and the second section (25) is arranged perpendicularly to the first surface (131); the second pipe body (2) is an integral piece, and the connecting pipe (19) is sealingly connected with the second pipe body (2); The first pipe body (1) comprises a first pipe (121), a second pipe (122) and a third pipe (123), the first pipe (121) and the second pipe (122) are straight pipes, and the third pipe (123) is a U-shaped pipe; the first pipe (121) is connected with one end of the third pipe (123), and the second pipe (122) is connected with the other end of the third pipe (123); The heat exchange device comprises a connecting portion (5), there is a gap between adjacent first pipes (121) and second pipes (122), the connecting portion (5) is at least partially located in the gap, and the adjacent first pipes (121) and second pipes (122) are connected with the connecting portion (5) respectively.

6. The heat exchange device according to any one of claims 1, 2, 3, 4, and 5, characterized by, The first pipe body (1) comprises a light-transmitting portion (28), and the light-transmitting portion (28) is at least partially exposed to the outside of the heat exchange device; The light-transmitting portion (28) is at least partially arranged in position with the second pipe body (2), and the light-transmitting rate of the light-transmitting portion (28) is greater than or equal to 25%.

7. The heat exchange device according to claim 6, wherein The first pipe body (1) comprises a first shell (101) and a second shell (102), the first shell (101) comprises the first plate portion (13), the second shell (102) comprises the second plate portion (14), the first shell (101) is fixedly connected with the second shell (102), and along the thickness direction of the heat exchange device (100), the first shell (101) is at least partially located on one side of the second shell (102); The first shell (101) at least partially comprises the light-transmitting portion (28), the second shell (102) at least partially comprises a light-absorbing portion (29), the light-absorbing portion (29) is black, and the light-transmitting portion (28) and the light-absorbing portion (29) are weldedly connected; The first shell (101) is any one of polypropylene plastic, polyethylene plastic, polyvinyl chloride plastic and polyamide; The second shell (102) comprises any one of polypropylene plastic, polyethylene plastic, polyvinyl chloride plastic and polyamide, and the second shell further comprises black filler.

8. The heat exchange device according to claim 7, wherein The light-transmitting part (28) has a groove part (211), the light-transmitting part (28) comprises a first side (282) and a second side (283), the first side (282) and the second side (283) are respectively located on both sides of the light-transmitting part (28) along the thickness direction of the heat exchange device (100), the first side (282) is away from the second surface (141) relative to the second side (283), the groove part (211) is recessed from the first side (282) to the direction away from the second pipe body (2), The light-absorbing part (29) comprises a third side (284), a fourth side (285) and a boss (221), the third side (284) is away from the first surface (131) relative to the fourth side (285) along the thickness direction of the heat exchange device (100), the boss (221) is protruded from the third side (284) to the direction away from the second pipe body (2), and the boss (221) is at least partially located in the groove part (211).

9. Heat exchange device according to any of claims 1-8, characterized in that A plane parallel to the thickness direction of the heat exchange device (100) is defined as a second projection plane, and the center of the orthographic projection of the wall of the first flow channel (11) on the second projection plane coincides with the center of the orthographic projection of the wall of the second flow channel (21) on the first projection plane.

10. The heat exchange device according to claim 5, wherein The heat exchange device (100) comprises a sealing part (6), the sealing part (6) is at least partially located in the connecting pipe (19), the sealing part (6) is connected with the second pipe body (2), and the second pipe body (2) penetrates through the sealing part (6); The sealing part (6) comprises a first port (51), a second port (52) and a third port (53), and the second port (52) is located between the first port (51) and the third port (53) along the thickness direction of the heat exchange device (100); The first port (51) is located outside the connecting pipe (19), the third port (53) is located inside the connecting pipe (19), and the second port (52) is at least partially located inside the connecting pipe (19); A plane perpendicular to the thickness direction of the heat exchange device (100) is defined as a third projection plane, the orthographic projection of the second port (52) on the third projection plane is located within the orthographic projection of the first port (51) on the third projection plane, and the orthographic projection of the second port (52) on the third projection plane is located within the orthographic projection of the third port (53) on the third projection plane; the second port (52) is sealingly connected with the connecting pipe (19); The connecting pipe (19) comprises a limiting part (251), the limiting part (251) is away from the boss (221) relative to the third groove part (211); and the limiting part (251) is connected with the first port (51).

11. The heat exchange device according to any one of claims 1 to 10, characterized in that The heat exchange device (100) comprises a valve seat (80) and a valve core (8), the valve seat (80) has a cavity (310), the valve core (8) is installed on the valve seat (80), the valve core (8) is located in the cavity (310), and the first pipe body (1) is at least partially integrated with the valve seat (80); or, The heat exchange device (100) comprises a valve seat (80) and a valve (9), the valve seat (80) has a cavity (310), the valve (9) comprises a shell part (91) and a valve core part (92), the valve core part (92) is located in the shell part (91), the shell part (91) is at least partially located in the cavity (31), the valve (9) has a valve port (93), the valve (9) is installed on the valve seat (80), the valve port (93) is in communication with the first flow channel (11), and the first pipe body (1) is at least partially integrated with the valve seat (80).

12. The heat exchange device according to claim 11, wherein The heat exchange device (100) has a first inlet pipe (114), and the first pipe body (1) and the first inlet pipe are connected with the valve seat; The valve core (8) has a first state and a second state, when the valve core (8) is in the first state, the first flow channel (11) is in communication with the inner cavity of the first inlet pipe (17), when the valve core (8) is in the second state, the first flow channel (11) is fluidly isolated from the inner cavity of the first inlet pipe (17), the heat exchange device (100) comprises a driving part (81), the driving part (81) can be used for controlling the valve core (8) to be in the first state or the second state, and the driving part (81) is fixedly connected with the valve seat (80); or the valve core (8) can be used for controlling the one-way flow of fluid from the inner cavity of the first inlet pipe (17) to the first flow channel (11); The valve (9) has a first working state and a second working state, when the valve (9) is in the first working state, the inner cavity of the first inlet pipe (17) is in communication with the valve port, when the valve (9) is in the second working state, the inner cavity of the first inlet pipe (17) is fluidly isolated from the valve port; or the valve (9) is used for controlling the one-way flow of fluid from the inner cavity of the first inlet pipe (17) to the first flow channel (11).

13. A dishwasher heat pump arrangement, characterized in that, The heat exchange device (100) comprises a first pipe body (1) and a second pipe body (2), the first pipe body (1) is at least partially sleeved outside the second pipe body (2); The heat exchange device has a first flow channel (11), the first pipe body (1) is a part of the wall of the first flow channel (11), the second pipe body (2) is a part of the wall of the first flow channel (11), the second pipe body (2) has a second flow channel (21), the first flow channel can be used for flowing through a detergent, and the second flow channel (21) can be used for flowing through a refrigerant; The first pipe body (1) comprises a first surface (131) and a second surface (141), the heat exchange device (100) has a thickness direction, along the thickness direction of the heat exchange device (100), the first surface (131) and the second surface (141) are located on opposite sides of the first pipe body (1) respectively, and at least one of the first surface (131) and the second surface (141) is a plane perpendicular to the thickness direction of the heat exchange device (100).

14. The dishwasher heat pump apparatus of claim 13, wherein, The first pipe body (1) comprises a light-transmitting part (28), the light-transmitting part (28) is at least partially exposed to the outside of the heat exchange device. The light-transmitting part (28) comprises a light-transmitting material (281), the light-transmitting part (28) is at least partially arranged in position with the second pipe body (2), and the light-transmitting rate of the light-transmitting material (281) is greater than or equal to 25%.

15. The dishwasher heat pump arrangement according to claim 13 or 14, characterized in that, The heat exchange device (100) comprises a valve seat (80) and a valve core (8), the valve seat (80) has a cavity (310), the valve core (8) is installed on the valve seat (80), the valve core (8) is located in the cavity (310), and the first pipe body (1) is at least partially an integral part of the valve seat (80); or, The heat exchange device (100) comprises a valve seat (80) and a valve (9), the valve seat (80) has a cavity (310), the valve (9) comprises a shell part (91) and a valve core part (92), the valve core part (92) is located in the shell part (91), the shell part (91) is at least partially located in the cavity (31), the valve (9) has a valve port (93), the valve (9) is installed on the valve seat (80), the valve port (93) is in communication with the first flow channel (11), and the first pipe body (1) is at least partially an integral part of the valve seat (80).

Images