Heat exchanger and water supply device

Abstract

The heat exchanger comprises a shell and a plurality of heat exchange partition plates, the shell is provided with an installation space, the heat exchange partition plates are sequentially arranged in the installation space in the first direction of the shell, and a first channel or a second channel is formed between every two adjacent heat exchange partition plates. The shell is made of non-metal materials or / and is provided with a heat insulation structure, and the heat exchange partition plate is a metal heat exchange partition plate or / and is provided with a heat conduction structure. Compared with the prior art, the first channel or the second channel is formed between every two adjacent heat exchange partition plates, so that the cross section area of the formed first channel and the second channel is large, and the heat conduction area of the first channel and the heat conduction area of the second channel are increased. The shell is made of non-metal materials, a good heat preservation effect is achieved, heat loss is reduced, meanwhile, material cost is reduced, and the weight of the heat exchanger is reduced. The heat exchange partition plates are metal heat exchange partition plates, the heat conduction efficiency of the heat exchange partition plates is improved, and the heat efficiency of the heat exchanger is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water heater technical field especially relates to a heat exchanger and water supply device. BACKGROUND

[0002] The heat exchanger in the water heater is the key component to realize heat transfer, and its main function is to transfer heat from the heat transfer medium to the water, thereby heating the water to the required temperature. The heat exchanger in the water heater transfers heat from the heating source to the water through heat conduction, convection and radiation, etc. to realize the heating of water. The heat exchange efficiency of the heat exchanger in the prior art is low, and the water flow takes a long time to heat to the specified temperature in the heat exchanger, which cannot realize the effect of instant hot water, affecting the user experience. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a heat exchanger and water supply device, which can improve the heat exchange efficiency of the heat exchanger.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A heat exchanger comprises a shell and a plurality of heat exchange partitions, the shell is provided with a mounting space; a plurality of heat exchange partitions are arranged in the mounting space in the first direction of the shell, a first channel or a second channel is formed between adjacent heat exchange partitions, the shell is made of non-metallic material or / and is provided with a heat insulation structure, and the heat exchange partition is made of a metal heat exchange partition or / and is provided with a heat conduction structure.

[0006] As one of the embodiments, the shell is provided with a heat insulation structure, the heat insulation structure is a cavity, or the heat insulation structure is filled with thermal insulation material.

[0007] As one of the embodiments, the thermal conductivity of the shell is Q1, the thermal conductivity of the heat exchange partition is Q2, and Q1 < Q2.

[0008] As one of the embodiments, the shell comprises a top plate and a bottom plate, the edge portions of the top plate and the bottom plate are connected to form the mounting space, the thickness of the top plate is greater than the thickness of the heat exchange partition, and the thickness of the bottom plate is greater than the thickness of the heat exchange partition.

[0009] As one of the embodiments, the heat exchange partition comprises an edge portion and a main body portion, the edge portion is connected to the outer periphery of the main body portion, a plurality of heat exchange partitions are stacked together, two adjacent edge portions are connected to each other, and two adjacent main body portions are spaced apart to form the first channel or the second channel; the thermal conductivity of the main body portion is greater than that of the edge portion.

[0010] As one of the implementation, the material of the main body is metal or metal composite or graphite, the material of the edge is plastic or silica gel, and the plurality of edges are stacked and connected together.

[0011] As one of the implementation, the heat exchange partition is provided with a heat conduction structure, the thickness of the heat exchange partition at the heat conduction structure is smaller than that of the rest, or the heat conduction structure is engraved with a pattern.

[0012] As one of the implementation, a flow channel is formed between two adjacent heat exchange partitions, and along the first direction, the plurality of flow channels are divided into odd layer flow channels and even layer flow channels, the odd layer flow channels are the second channels, the even layer flow channels are the first channels, and the odd layer flow channels and the even layer flow channels are isolated from each other.

[0013] As one of the implementation, along the first direction, the heat conductivity of the heat exchange partition at the outermost side of the plurality of heat exchange partitions is Q3, and the heat conductivity of the rest of the heat exchange partitions is Q4, Q3 < Q4.

[0014] The utility model discloses a water supply device that adopts the following technical scheme, a heat exchanger and a hot tank in any one of the above embodiments are included, the hot tank communicates with the heat exchanger.

[0015] The utility model discloses a heat exchanger and water supply device, heat exchanger includes the casing and a plurality of heat exchange partitions, and the casing is equipped with the mounting space, and a plurality of heat exchange partitions are arranged in the mounting space along the first direction of the casing, and the first channel or the second channel is formed between the adjacent heat exchange partitions, and the casing adopts non -metal material or / and is provided with the heat insulating structure, and the heat exchange partition adopts the metal heat exchange partition or / and is provided with the heat conduction structure. Compared with the prior art, the first channel or the second channel is formed between the two adjacent heat exchange partitions, the cross section area of the first channel and the second channel formed in this way is larger, the contact area of the first channel and the second channel is increased, and then the heat conduction area of the second channel and the first channel is increased, and a plurality of heat exchange partitions are sequentially arranged along the height direction, so that the length of the first channel and the second channel along the height direction is smaller, the flow rate of the water flow in the unit area of the longitudinal cross section of the first channel is smaller, and then the water flow can quickly absorb the heat of the heat exchange medium, and the heat exchange efficiency is improved. The casing adopts non -metal material, has good heat preservation effect, reduces heat loss, reduces material cost, and reduces the weight of the heat exchanger. The heat exchange partition adopts the metal heat exchange partition, improves the heat conduction efficiency of the heat exchange partition, and then improves the heat efficiency of the heat exchanger. ACCURACY OF DRAWINGS

[0016] Figure 1 The structure of the heat exchanger of the utility model is shown in the schematic diagram.

[0017] Figure 2 A cross-sectional schematic diagram of a heat exchanger AA according to the present invention is shown;

[0018] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram;

[0019] Figure 4 A cross-sectional schematic diagram of a heat exchanger BB according to the present invention is shown.

[0020] Reference numerals: 1. Shell; 2. Heat exchange baffle; 3. Sealing part; 11. Installation space; 12. Top plate; 13. Bottom plate; 21. First channel; 22. Second channel; 23. Main body; 24. Edge; 25. Flow channel; 26. First guide channel; 27. Second guide channel; 10. First set of interfaces; 20. Second set of interfaces; 251. Odd-numbered layer flow channel; 252. Even-numbered layer flow channel. Detailed Implementation

[0021] In this utility model, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] And, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0026] Referring to Figure 1 The present application provides a water supply device, comprising a heat exchanger and a hot tank, the heat exchanger has a first channel 21 and a second channel 22 isolated from each other, the first channel 21 and the second channel 22 are in thermal connection, that is, the first channel 21 and the second channel 22 can exchange heat, the first channel 21 can be used as a first channel 21 for flowing drinking water (use water), the second channel 22 can be used as a second channel 22 for flowing heat exchange medium, the hot tank is in communication with the second channel 22.

[0027] In practical application, the hot tank stores heat exchange medium, the hot tank is connected with a pump body and a heating element, the pump body is used to drive the heat exchange medium to circulate in the hot tank and the second channel 22, the heating element is connected with the hot tank, and the heating element is used to heat the heat exchange medium in the hot tank to keep it at a specific temperature, so as to facilitate heating the water flow in the first channel 21. The heat exchange medium is a substance that transfers heat, such as hot water or high-temperature liquid, etc. The hot tank is in communication with the second channel 22, the pump body drives the heat exchange medium to flow in the second channel 22, and through the heat exchange effect between the second channel 22 and the first channel 21, the heat of the heat exchange medium (hot water) is transferred to the water flow in the first channel 21, realizing the effect of heating drinking water (use water).

[0028] Referring to Figure 1 The heat exchanger comprises a shell 1 and a plurality of heat exchange partitions 2, the shell 1 is provided with a mounting space 11, the plurality of heat exchange partitions 2 are arranged in the mounting space 11 in the first direction of the shell 1, the first channel 21 or the second channel 22 is formed between adjacent heat exchange partitions 2, the shell 1 is made of non-metallic material or / and is provided with a heat insulation structure, and the heat exchange partition 2 is made of a metal heat exchange partition or / and is provided with a heat conduction structure.

[0029] In practical application, the shell 1 itself defines a height direction, such as Figure 2As shown, the X direction represents the height direction, which can be set as the first direction. The plurality of heat exchange partitions 2 are arranged in the installation space 11 in sequence along the first direction, and the first channel 21 or the second channel 22 is formed between adjacent heat exchange partitions 2. Along the first direction, the first channel 21 and the second channel 22 are arranged alternately, so that the first channel 21 is provided with the second channel 22 on both sides, and the second channel 22 heats both sides of the first channel 21, thereby improving the heating efficiency of the first channel 21.

[0030] Since the shell 1 is internally provided with a plurality of heat exchange partitions 2, the heat exchange between the first channel 21 and the second channel 22 is carried out inside the shell 1. Therefore, in order to avoid heat loss inside the shell 1, the shell 1 can be made of a non-metal material. The non-metal material has good heat preservation performance, which can ensure that the heat of the heat exchange medium will not be transmitted to the outside, thereby reducing heat loss and improving thermal efficiency. At the same time, the non-metal material has a relatively light weight, which reduces the overall weight of the heat exchanger and has good insulation performance and corrosion resistance, thereby prolonging the service life of the heat exchanger. The non-metal material can be made of plastic or the like.

[0031] In an embodiment, in addition to being made of a non-metal material, the shell 1 can also be provided with a heat insulation structure to achieve the heat preservation effect and avoid heat loss. Of course, the shell 1 in this way can also not be made of a non-metal material.

[0032] The heat exchange partition 2 is made of a metal material, and the heat exchange partition 2 is a key component of the heat exchanger, which is used to separate the first channel 21 and the second channel 22 and make the first channel 21 and the second channel 22 exchange heat through the heat exchange partition 2. Since the metal material (such as copper, aluminum, stainless steel, etc.) generally has a high thermal conductivity, it can quickly and effectively transmit heat from one side to the other side, which makes the metal heat exchange partition 2 perform well in the heat exchange process and improves the heat exchange efficiency.

[0033] In an embodiment, in addition to being made of a metal heat exchange partition 2, the heat exchange partition 2 can also be provided with a heat conduction structure to achieve the heat exchange effect. Of course, the heat exchange partition 2 provided with the heat conduction structure can not be made of a metal heat exchange partition 2.

[0034] Compared with the prior art, the first channel 21 or the second channel 22 is formed between two adjacent heat exchange partitions 2, the cross-sectional area of the first channel 21 and the second channel 22 formed in this way is large, the contact area of the first channel 21 and the second channel 22 is increased, and then the heat conduction area of the second channel 22 and the first channel 21 is increased, and at the same time, a plurality of heat exchange partitions 2 are arranged in sequence along the height direction, so that the length of the first channel 21 and the second channel 22 along the height direction is small, the flow rate per unit area of the water flow inside the first channel 21 is small, and then the water flow can quickly absorb the heat of the heat exchange medium, and the heat exchange efficiency is improved. The shell 1 is made of a non-metal material, which has good heat preservation effect, reduces heat loss, reduces material cost, and reduces the weight of the heat exchanger. The heat exchange partition 2 is made of a metal heat exchange partition 2, which improves the heat conduction efficiency of the heat exchange partition 2, and then improves the heat efficiency of the heat exchanger.

[0035] In an embodiment, the shell 1 is provided with a heat insulation structure, and the heat insulation structure is a cavity; specifically, the shell 1 can adopt a hollow structure, and the shell 1 is provided with a cavity, which should be a vacuum structure, and the vacuum cavity has almost no air or other gas, which can effectively prevent the heat of the heat exchange partition 2 from being transmitted to the outside by conduction and convection, and then achieve the heat preservation effect.

[0036] In an embodiment, the shell 1 is provided with a heat insulation structure, and the heat insulation structure is filled with a heat preservation material; specifically, the shell 1 is provided with a heat preservation layer, which can adopt a structure such as foam or heat preservation cotton, and the structure has a small thermal conductivity and poor heat conduction performance, which can effectively avoid heat loss of the heat exchange partition 2.

[0037] It should be noted that the vacuum cavity and the heat preservation layer can be provided in the shell 1 at the same time, and the two ways are combined to achieve the heat preservation effect.

[0038] In an embodiment, the thermal conductivity of the shell 1 is Q1, and the thermal conductivity of the heat exchange partition 2 is Q2, and Q1 < Q2. In actual application, the shell 1 mainly plays a heat preservation role, and the heat exchange partition 2 mainly plays a heat exchange role, so the shell 1 adopts a material with low thermal conductivity, such as plastic or cotton, which can achieve good heat preservation effect, and the heat exchange partition 2 needs to adopt a material with high thermal conductivity, such as metal, which can improve the heat exchange efficiency and achieve good heat transfer effect.

[0039] It should be noted that the thermal conductivity reflects the ability of a material to conduct heat under steady-state conditions. Specifically, it represents the amount of heat transferred through a unit area and unit thickness of the material per unit time when there is a temperature difference on both sides of the material. The larger the thermal conductivity, the better the heat conduction performance of the material; the smaller the thermal conductivity, the better the heat insulation performance of the material.

[0040] Reference Figure 2 and Figure 3The shell 1 comprises a top plate 12 and a bottom plate 13, the edge portions 24 of the top plate 12 and the bottom plate 13 are connected to form the mounting space 11, the thickness of the top plate 12 is greater than the thickness of the heat exchange partition plate 2, and the thickness of the bottom plate 13 is greater than the thickness of the heat exchange partition plate 2.

[0041] In practical applications, the top plate 12 and the bottom plate 13 are stacked together along the first direction to form the mounting space 11, and a plurality of heat exchange partition plates 2 are located between the top plate 12 and the bottom plate 13. The plurality of heat exchange partition plates 2 generally have a high fluid pressure therebetween. The top plate 12 and the bottom plate 13 serve as the main support components of the heat exchanger and must have sufficient thickness to withstand these pressures to prevent deformation or rupture. The top plate 12 and the bottom plate 13 not only withstand internal pressure but also withstand external mechanical loads. Thicker plates can provide better mechanical strength to ensure that the equipment remains stable under various operating conditions. In some cases, the top plate 12 and the bottom plate 13 can be in direct contact with the external environment, forming a thermal bridge. Thicker plates can reduce the thermal bridge effect, reduce the speed of heat transfer through the top plate 12 and the bottom plate 13 to the outside, and improve the overall thermal insulation effect.

[0042] Referring again to Figure 3 The heat exchange partition plate 2 comprises an edge portion 24 and a main body portion 23, the edge portion 24 is connected to the outer periphery of the main body portion 23, a plurality of heat exchange partition plates 2 are stacked together, adjacent two edge portions 24 are connected to each other, and adjacent two main body portions 23 are spaced apart to form the first channel 21 or the second channel 22; and the thermal conductivity of the main body portion 23 is greater than that of the edge portion 24.

[0043] In practical applications, the heat exchange partition plate 2 is composed of the main body portion 23 and the edge portion 24, the main body portions 23 of a plurality of heat exchange partition plates 2 are arranged in the first direction and spaced apart from each other to form channels for water flow or heat exchange medium to pass through, and the outer periphery of the main body portion 23 is connected with the edge portion 24. The edge portions 24 of a plurality of heat exchange partition plates 2 are sealingly connected together, which can isolate the channels from the outside and prevent water flow or heat exchange medium in the channels from penetrating to the outside.

[0044] The main body portion 23 mainly serves as a heat conduction part, and the water flow and the heat exchange medium exchange heat through the main body portion 23. Therefore, the thermal conductivity of the main body portion 23 is greater, which is conducive to improving the heat exchange efficiency. The edge portion 24 mainly serves as a connecting part and plays a sealing role. Therefore, the thermal conductivity of the edge portion 24 can be smaller, and the structural strength can be greater, so that the plurality of heat exchange partition plates 2 are connected more tightly, and the overall structural strength is improved.

[0045] The connection of the edge portion 24 can be achieved by welding, bonding or pressing, which is not limited in the present application.

[0046] In an embodiment, the material of the main body 23 can be metal or metal composite or graphite, etc. The thermal conductivity of metal or metal composite or graphite is large, and the heat transfer effect is good, which improves the heat exchange efficiency of the main body 23.

[0047] The material of the edge part 24 can be plastic or silicone, etc. The thermal conductivity of such materials is low, and the heat conduction is poor, but the structural ductility is good, and the plasticity is easy, which facilitates the welding or bonding of multiple edge parts 24, and reduces the weight of the heat exchanger.

[0048] In an embodiment, the heat exchange partition plate 2 is provided with a heat conduction structure, and the thickness of the heat exchange partition plate 2 at the heat conduction structure is smaller than that of other parts. In actual application, the heat exchange partition plate 2 is not all parts as heat conduction part, usually only the horizontal part of the heat exchange partition plate 2 needs to be heat exchanged, so the horizontal part of the heat exchange partition plate 2 is provided with a heat conduction structure, and the thickness of the heat conduction structure is smaller than that of other parts of the heat exchange partition plate 2, which can effectively improve the heat exchange efficiency of the heat conduction structure, and the thicker of other parts can also increase the structural strength of the heat exchange partition plate 2.

[0049] In an embodiment, the heat exchange partition plate 2 is provided with a heat conduction structure, and the heat conduction structure is engraved with patterns. The engraved pattern of the heat conduction structure is a kind of surface texture treatment, the main purpose is to change the surface structure to optimize the heat transfer and flow characteristics, so as to improve the heat conduction efficiency, and the engraved pattern can significantly increase the actual surface area of the heat conduction surface, so as to provide more heat conduction path.

[0050] Referring to Figure 4 , two adjacent heat exchange partition plates 2 form a flow channel 25, along the first direction, the multiple flow channels 25 are divided into odd layer flow channels 251 and even layer flow channels 252, the odd layer flow channels 251 are the second channels 22, and the even layer flow channels 252 are the first channels 21, and the odd layer flow channels 251 and the even layer flow channels 252 are isolated from each other.

[0051] In practical application, the odd-numbered layer flow channel 251, such as the first layer, the third layer, etc. flow channel 25, the even-numbered layer flow channel 252, such as the second layer, the fourth layer, etc. flow channel 25, the odd-numbered layer flow channel 251 can be the second channel 22, and the even-numbered layer flow channel 252 can be the first channel 21, so that each layer of the first channel 21 has the second channel 22 on the opposite sides to heat it from both sides, effectively saving the heating time of the water flow in the first channel 21, and improving the hot water output speed of the water heater; the air exchanger is provided with a first flow guide channel 26 and a second flow guide channel 27 penetrating each heat exchange partition 2 in the first direction, the first flow guide channel 26 and the second flow guide channel 27 penetrate the plurality of flow channels 25, and the air exchanger further comprises a sealing part 3, the sealing part 3 is used for sealing all the second channels 22 (odd-numbered layer flow channels 251) in the first flow guide channel 26, and the sealing part 3 is used for sealing all the first channels 21 (even-numbered layer flow channels 252) in the second flow guide channel 27. The first flow guide channel 26 is connected with an external water source (or a water inlet pipeline), and the first flow guide channel 26 is a channel for water flow to enter, and the second flow guide channel 27 is connected with a heat tank, and the second flow guide channel 27 is a channel for heat exchange medium to enter.

[0052] In this way, the odd-numbered layer flow channel 251 and the even-numbered layer flow channel 252 can be isolated from each other, and the water flow and the heat exchange medium can flow and exchange heat respectively, but do not mix with each other, thereby ensuring the safety of the user's drinking water (water).

[0053] Referring again to Figure 4 , in the first direction, the heat conduction coefficient of the heat exchange partition 2 on the outermost side of the plurality of heat exchange partitions 2 is Q3, and the heat conduction coefficient of the remaining heat exchange partitions 2 is Q4, Q3 < Q4.

[0054] In practical application, the heat exchanger can also not be provided with a shell 1, and in the first direction, the heat exchange partition 2 on the outermost side can be used as a top plate 12 and a bottom plate 13, the heat exchange partition 2 on the outermost side is made of a thicker plate material or a material with a smaller heat conduction coefficient, which can enhance the strength of the heat exchanger and realize the heat preservation performance, and the heat exchange partitions 2 inside are still made of a material with a higher heat conduction coefficient, thereby ensuring good heat conduction efficiency.

[0055] Referring again to Figure 4 , the heat exchanger is provided with a first group of interfaces 10 and a second group of interfaces 20, the first group of interfaces 10 communicates with one of the first channel 21 and the second channel 22, and the second group of interfaces 20 communicates with the other one of the first channel 21 and the second channel 22.

[0056] Specifically, the first group of interfaces 10 includes a first water inlet and a first water outlet, the first water inlet is communicated with the water inlet pipe and the first channel 21 respectively, the first water outlet is communicated with the first channel 21 and the water outlet pipe respectively, water flows into the first channel 21 from the first water inlet, is heated by the heat exchange medium, and then flows to the water outlet pipe from the first water outlet, and flows out of the water outlet pipe for use by the user. The second group of interfaces 20 includes a second water inlet and a second water outlet, the second water inlet is communicated with the heat tank and the second channel 22 respectively, the second water outlet is communicated with the heat tank and the second channel 22 respectively, the heat exchange medium in the heat tank flows into the second channel 22 from the second water inlet, exchanges heat with the water flow in the second channel 22, and then flows back to the heat tank from the second water outlet for heating, so as to facilitate the next heat exchange.

[0057] Compared with the prior art, the first channel 21 or the second channel 22 is formed between the two adjacent heat exchange partitions 2, the cross-sectional area of the first channel 21 and the second channel 22 formed in this way is large, the contact area of the first channel 21 and the second channel 22 is increased, and then the heat conduction area of the second channel 22 and the first channel 21 is increased, at the same time, the plurality of heat exchange partitions 2 are arranged in sequence along the height direction, so the length of the first channel 21 and the second channel 22 along the height direction is small, the flow per unit area of the water flow in the first channel 21 is small, and then the water flow can quickly absorb the heat of the heat exchange medium, and the heat exchange efficiency is improved. The shell 1 is made of a non-metal material, has a good heat preservation effect, reduces heat loss, reduces material cost, and reduces the weight of the heat exchanger. The heat exchange partition 2 is made of a metal heat exchange partition 2, the heat conduction efficiency of the heat exchange partition 2 is improved, and then the heat efficiency of the heat exchanger is improved.

[0058] The above is only a specific embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A heat exchanger, characterized by, The heat exchanger comprises: a housing (1) provided with a mounting space (11); a plurality of heat exchange partitions (2) arranged in the mounting space (11) along a first direction of the housing (1), a first channel (21) or a second channel (22) being formed between adjacent heat exchange partitions (2), the housing (1) being made of a non-metal material or provided with a heat insulation structure, and the heat exchange partitions (2) being made of metal heat exchange partitions (2) or provided with a heat conduction structure.

2. The heat exchanger of claim 1, wherein The housing (1) is internally provided with a heat insulation structure, which is a cavity or filled with thermal insulation material.

3. The heat exchanger of claim 1, wherein The heat conduction coefficient of the housing (1) is Q1, and the heat conduction coefficient of the heat exchange partition (2) is Q2, Q1 < Q2.

4. The heat exchanger of claim 2, wherein The housing (1) comprises a top plate (12) and a bottom plate (13), the edge portions (24) of the top plate (12) and the bottom plate (13) are connected to form the mounting space (11), the thickness of the top plate (12) is greater than the thickness of the heat exchange partition (2), and the thickness of the bottom plate (13) is greater than the thickness of the heat exchange partition (2).

5. The heat exchanger of claim 1, wherein The heat exchange partition (2) comprises an edge portion (24) and a main body portion (23), the edge portion (24) is connected to the outer periphery of the main body portion (23), a plurality of heat exchange partitions (2) are stacked together, adjacent two edge portions (24) are connected to each other, and adjacent two main body portions (23) are spaced apart to form the first channel (21) or the second channel (22); the heat conduction coefficient of the main body portion (23) is greater than that of the edge portion (24).

6. The heat exchanger of claim 5, wherein The material of the main body portion (23) is metal or metal composite or graphite, the material of the edge portion (24) is plastic or silicone, and a plurality of edge portions (24) are stacked and connected together.

7. The heat exchanger of claim 1, wherein The heat exchange partition (2) is provided with a heat conduction structure, the thickness of the heat exchange partition (2) at the heat conduction structure is less than that of other parts, or the heat conduction structure is engraved with a pattern.

8. The heat exchanger of claim 1, wherein Adjacent two heat exchange partitions (2) form a flow channel (25), along the first direction, a plurality of flow channels (25) are divided into odd layer flow channels (251) and even layer flow channels (252), the odd layer flow channels (251) are second channels (22), the even layer flow channels (252) are first channels (21), and the odd layer flow channels (251) and the even layer flow channels (252) are isolated from each other.

9. The heat exchanger according to any one of claims 1-8, characterized in that Along the first direction, the heat conduction coefficient of the outermost heat exchange partition (2) in the plurality of heat exchange partitions (2) is Q3, and the heat conduction coefficient of the remaining heat exchange partitions (2) is Q4, Q3 < Q4.

10. A water supply device characterized by comprising: The heat exchanger comprises: a housing (1) provided with a mounting space (11); a plurality of heat exchange partitions (2) arranged in the mounting space (11) along a first direction of the housing (1), a first channel (21) or a second channel (22) being formed between adjacent heat exchange partitions (2), the housing (1) being made of a non-metal material or provided with a heat insulation structure, and the heat exchange partitions (2) being made of metal heat exchange partitions (2) or provided with a heat conduction structure. The housing (1) is internally provided with a heat insulation structure, which is a cavity or filled with thermal insulation material. The heat conduction coefficient of the housing (1) is Q1, and the heat conduction coefficient of the heat exchange partition (2) is Q2, Q1 < Q2. The heat exchanger comprises: a housing (1) provided with a mounting space (11); a plurality of heat exchange partitions (2) arranged in the mounting space (11) along a first direction of the housing (1), a first channel (21) or a second channel (22) being formed between adjacent heat exchange partitions (2), the housing (1) being made of a non-metal material or provided with a heat insulation structure, and the heat exchange partitions (2) being made of metal heat exchange partitions (2) or provided with a heat conduction structure. The housing (1) is internally provided with a heat insulation structure, which is a cavity or filled with thermal insulation material. The heat conduction coefficient of the housing (1) is Q1, and the heat conduction coefficient of the heat exchange partition (2) is Q2, Q1 < Q2. The heat exchanger comprises: a housing (1) provided with a mounting space (11); a plurality of heat exchange partitions (2) arranged in the mounting space (11) along a first direction of the housing (1), a first channel (21) or a second channel (22) being formed between adjacent heat exchange partitions (2), the housing (1) being made of a non-metal material or provided with a heat insulation structure, and the heat exchange partitions (2) being made of metal heat exchange partitions (2) or provided with a heat conduction structure. The housing (1) is internally provided with a heat insulation structure, which is a cavity or filled with thermal insulation material. The heat conduction coefficient of the housing (1) is Q1, and the heat conduction coefficient of the heat exchange partition (2) is Q2, Q1 < Q2.

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