Heat exchanger and water supply device

Abstract

The utility model discloses a heat exchanger and a water supply device, the heat exchanger comprises a plurality of heat conducting plates and a first sealing piece, the plurality of heat conducting plates are sequentially arranged along a first direction, a first channel or a second channel is formed between the adjacent heat conducting plates, and the first channel and the second channel are alternately arranged and mutually isolated; a first sealing piece is connected between the outer side sides of every two adjacent heat conduction plates in an abutting mode so as to seal the first channel or the second channel. Compared with the prior art, the multiple heat conduction plates form the first channel and the second channel in the first direction, so that the flow of the unit area of the longitudinal section of water flow in the first channel is small, the water flow can quickly absorb the heat of the heat exchange medium, the heat exchange efficiency is improved, the water flow heating time is saved, and the effect of instantly discharging hot water is achieved. The first channel and the second channel are sealed through the first sealing piece, and drinking water or heat exchange media are prevented from seeping out, polluting the heater environment and affecting the heat exchange function of the heat exchanger.

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 water heater is a kind of domestic or industrial equipment for heating water and providing hot water.The heat exchanger (also called heat exchange) is a key component in water heater, and the basic function of heat exchanger is to transfer heat from one medium (such as gas or liquid) to another medium to achieve the purpose of heating or cooling.The heat exchange efficiency of heat exchanger in prior art is low, and the time of water flow heating to specified temperature in heat exchanger is relatively long, which cannot realize the effect of instant hot water, and affects 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, comprising a plurality of heat-conducting plates and a first sealing member, a plurality of the heat-conducting plates are arranged in sequence along a first direction, a first channel or a second channel is formed between adjacent heat-conducting plates, the first channel and the second channel are arranged alternately and isolated from each other; the first sealing member is abutted between the outer sides of adjacent two heat-conducting plates to seal the first channel or the second channel.

[0006] As one of the embodiments, at least one sealing groove is formed on one side or opposite sides of the heat-conducting plate towards the first sealing member, and the first sealing member is located in the sealing groove of adjacent two heat-conducting plates and abuts on adjacent two heat-conducting plates respectively.

[0007] As one of the embodiments, the heat-conducting plate comprises an outer side and a main body, the outer periphery of the main body is connected with the outer side, the first sealing member is abutted between adjacent two outer sides, and adjacent two main bodies are spaced from each other to form the first channel or the second channel.

[0008] As one of the embodiments, the heat exchanger comprises a second sealing member, and the second sealing member is used to separate the first channel and the second channel.

[0009] As one of the embodiments, the heat exchanger is provided with a first flow channel and a second flow channel penetrating through each heat-conducting plate along the first direction, the second sealing member is used to seal all the second channels in the first flow channel, and the second sealing member is used to seal all the first channels in the second flow channel.

[0010] In one embodiment, the second seal and the heat-conducting plate are integrally formed, or the second seal and the heat-conducting plate are welded, or the second seal and the heat-conducting plate are bonded.

[0011] In one embodiment, a chamfer is formed at the connection between the second seal and the heat-conducting plate.

[0012] In one embodiment, the heat-conducting plate has a through-hole, and the wall of one of the holes extends toward the adjacent heat-conducting plates to form a flange. The flange is sealed to the flow hole of the adjacent heat-conducting plate. Along the first direction, a plurality of flanges are spaced apart, and a first channel or a second channel is provided between two adjacent flanges.

[0013] In one embodiment, the heat exchanger is provided with a first set of interfaces and a second set of interfaces. The first set of interfaces is connected to one of the first channel and the second channel, and the second set of interfaces is connected to the other of the first channel and the second channel.

[0014] The present invention adopts the following technical solution: a water supply device, including a heat exchanger and a hot tank, wherein the hot tank is connected to the second channel.

[0015] The beneficial effects of this utility model are as follows: This application provides a heat exchanger and a water supply device. The heat exchanger includes multiple heat-conducting plates and a first sealing element. The multiple heat-conducting plates are arranged sequentially along a first direction, and a first channel or a second channel is formed between adjacent heat-conducting plates. The first channel and the second channel are alternately arranged and isolated from each other. The first sealing element abuts against the outer sides of two adjacent heat-conducting plates to seal the first channel or the second channel. Compared with the prior art, the multiple heat-conducting plates forming the first channel and the second channel along the first direction result in a smaller flow rate per unit area of ​​the longitudinal cross-section of the water flow inside the first channel. This allows the water flow to quickly absorb the heat of the heat exchange medium, improving the efficiency of heat exchange, saving water heating time, and achieving the effect of instant hot water. Furthermore, the first sealing element seals the first channel and the second channel, preventing drinking water or the heat exchange medium from leaking out, polluting the heater environment, and affecting the heat exchanger's heat exchange function. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a heat exchanger according to this utility model is shown;

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

[0018] Figure 3A cross-sectional schematic diagram of a heat-conducting plate according to the present invention is shown;

[0019] Figure 4 It shows Figure 2 Enlarged view of point A in the image;

[0020] Figure 5 A cross-sectional schematic diagram of a heat exchanger BB according to the present invention is shown.

[0021] Reference numerals: 1. Heat-conducting plate; 2. First seal; 3. Barrier rib; 4. Second seal; 11. First channel; 12. Second channel; 13. Main body; 14. Outer side; 15. Flow channel; 16. First guide channel; 17. Second guide channel; 18. Guide hole; 19. Flanged part; 10. First set of interfaces; 20. Second set of interfaces; 141. Sealing groove; 151. Odd-numbered layer flow channel; 152. Even-numbered layer flow channel; 31. First convex strip; 32. Second convex strip. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] See Figure 1 This application provides a water supply device, including a heat exchanger and a hot tank (not shown in the figure). The heat exchanger includes a first channel 11 and a second channel 12 spaced apart from each other. The first channel 11 and the second channel 12 are thermally connected. The first channel 11 can be used as a water flow channel for supplying drinking water (use water) to flow. The second channel 12 can be used as a heat exchange medium channel for supplying heat exchange medium to flow. The hot tank and the second channel 12 are connected.

[0028] In practical applications, the heat exchange tank stores a heat exchange medium, which is a substance that transfers heat, such as hot water or high-temperature liquid. The heat exchange tank is connected to the second channel 12 so that the heat exchange medium (hot water) flows in the second channel 12. Through the thermally conductive connection between the second channel 12 and the first channel 11, the heat of the heat exchange medium (hot water) is transferred to the water flow in the first channel 11, thereby achieving the effect of heating drinking water (use water).

[0029] It should be noted that the water heater also includes a pump body and a heating element. The pump body is connected to the hot tank and is used to drive the hot water (heat exchange medium) to circulate in the hot tank and the second channel 12. The heating element is connected to the hot tank and is used to heat the hot water (heat exchange medium) in the hot tank and keep it at a specific temperature so as to facilitate heating the water flow in the first channel 11.

[0030] See Figure 1 and Figure 2 The heat exchanger includes multiple heat-conducting plates 1 and a first sealing element 2. The multiple heat-conducting plates 1 are arranged sequentially along a first direction. A first channel 11 or a second channel 12 is formed between adjacent heat-conducting plates 1. The first channel 11 and the second channel 12 are alternately arranged and isolated from each other. The first sealing element 2 abuts between the outer sides 14 of two adjacent heat-conducting plates 1 to seal the first channel 11 or the second channel 12.

[0031] To clearly describe the embodiments, Figure 2 The X direction refers to the first direction mentioned above. Taking the first direction of the heat exchanger as an example, this will be explained.

[0032] In practical applications, multiple heat-conducting plates 1 are arranged sequentially along the first direction, and a first channel 11 or a second channel 12 is formed between two adjacent heat-conducting plates 1. The first channel 11 and the second channel 12 formed in this way have a large cross-sectional area on the horizontal plane. The cross-sectional area of ​​the first channel 11 and the second channel 12 is usually used as the heat-conducting surface, thus increasing the heat-conducting area of ​​the first channel 11 and the second channel 12 in contact and improving the heat conduction efficiency.

[0033] The first channel 11 and the second channel 12 are isolated from each other and thermally connected. The first channel 11 is for water to flow through, and the second channel 12 is for heat exchange medium to flow through. The second channel 12 and the first channel 11 are thermally connected to facilitate heat exchange between the heat exchange medium and the water flow, thereby achieving the effect of heating the water flow.

[0034] A first seal 2 is abutted between the outer edges of two adjacent heat-conducting plates 1. The first seal 2 is used to seal the first channel 11 or the second channel 12 to prevent water or heat exchange medium inside the first channel 11 and the second channel 12 from seeping to the outside, polluting the environment, wasting resources, and affecting the heat exchange function of the heat exchanger. The first seal 2 can be a sealant or a sealing ring.

[0035] Compared to existing technologies, multiple heat-conducting plates 1 form a first channel 11 and a second channel 12 along a first direction. This results in a smaller flow rate per unit area of ​​the longitudinal cross-section of the water flow inside the first channel 11, allowing the water to quickly absorb heat from the heat exchange medium, improving heat exchange efficiency, saving water heating time, and achieving instant hot water output. Furthermore, the first sealing element 2 seals the first channel 11 and the second channel 12, preventing drinking water or heat exchange medium from leaking out, contaminating the heater environment, and affecting the heat exchanger's heat exchange function.

[0036] See Figure 3 The heat-conducting plate 1 has at least one sealing groove 141 on one side or opposite sides facing the first sealing member 2. The first sealing member 2 is located in the sealing groove 141 of two adjacent heat-conducting plates 1 and abuts against the two adjacent heat-conducting plates 1 respectively.

[0037] In practical applications, the outer edge of the heat-conducting plate 1 has at least one sealing groove 141 along the circumferential direction. The first sealing element 2 can be disposed in the sealing groove 141 of two adjacent heat-conducting plates 1 and abut against the two adjacent heat-conducting plates 1 respectively. The abutting design of the first sealing element 2 can ensure a tight contact between the first sealing element 2 and the heat-conducting plate 1, reduce gaps, and thus effectively prevent fluid leakage. Of course, if the first sealing element 2 is made of sealant, there is no need for abutting, and the sealant can overflow from the sealing groove 141, thereby enhancing the connection stability of the two adjacent heat-conducting plates 1.

[0038] See Figure 1The heat-conducting plate 1 includes an outer side 14 and a main body 13. The outer side 14 is connected to the outer periphery of the main body 13. The first sealing member 2 abuts between two adjacent outer sides 14. The two adjacent main bodies 13 are spaced apart to form a first channel 11 or a second channel 12.

[0039] In practical applications, multiple main body parts 13 are spaced apart to form a first channel 11 or a second channel 12. The main body part 13 mainly serves as the heat-conducting surface of the first channel 11 and the second channel 12, while the outer side 14 mainly serves as the part where the two heat-conducting plates 1 are connected. The outer side 14 is located on the outer periphery of the main body part 13 to facilitate sealing. The outer side 14 is provided with at least one sealing groove 141, and the first sealing member 2 is provided in the sealing groove 141 to seal two adjacent outer sides 14.

[0040] It is understandable that when the first seal 2 uses a sealing ring, multiple outer sides 14 can be pressed together by bolts or clamps to enhance the connection stability of multiple outer sides 14, and at the same time enhance the contact stability between the outer sides 14 and the first seal 2, making the contact between the two more secure; when the first seal 2 uses sealant, the sealant can not only seal the first channel 11 and the second channel 12, but also bond two adjacent heat-conducting plates 1 together, without the need for other connecting parts, saving installation steps.

[0041] See Figure 4 The heat exchanger includes a second seal 4, which separates the first channel 11 and the second channel 12. In practical applications, the first channel 11 is used for water flow, and the second channel 12 is used for heat exchange medium flow. To prevent the water and heat exchange medium from mixing and becoming unusable, this application provides a second seal 4 between the first channel 11 and the second channel 12. The second seal 4 separates the first channel 11 and the second channel 12, preventing the water inside the first channel 11 from mixing with the heat exchange medium inside the second channel 12, thus affecting the user's water safety.

[0042] See Figure 5 The air exchanger has a first flow channel 16 and a second flow channel 17 that penetrate each heat conduction plate 1 along the first direction. The second seal 4 is used to seal all the first channels 11 in the first flow channel 16 and all the second channels 12 in the second flow channel 17.

[0043] In practical applications, two adjacent heat-conducting plates 1 form flow channels 15. Along the first direction, multiple heat-conducting plates 1 form multiple layers of flow channels 15. The multiple layers of flow channels 15 are sequentially divided into odd-numbered flow channels 151 and even-numbered flow channels 152 along the first direction. The multiple odd-numbered flow channels 151 are interconnected, and the multiple even-numbered flow channels 152 are interconnected. The odd-numbered flow channels 151 are, for example, the first layer, the third layer, etc., and the even-numbered flow channels 152 are, for example, the second layer, the fourth layer, etc. The odd-numbered flow channels 151 can be the second channel. 12. Even-numbered flow channels 152 can be first channels 11. Thus, each first channel 11 has second channels 12 on both sides for double-sided heating, effectively saving heating time for the water flow within the first channel 11 and increasing the hot water output speed of the water heater. First guide channels 16 and second guide channels 17 penetrate multiple flow channels 15. Second seals 4 are used to seal all second channels 12 within the first guide channel 16 (odd-numbered flow channels 151), and to seal all first channels 11 within the second guide channel 17 (even-numbered flow channels 152). The first guide channel 16 is connected to an external water source (or inlet pipe) and serves as the channel for water flow. The second guide channel 17 is connected to the heat exchange tank and serves as the channel for the heat exchange medium to enter.

[0044] With this configuration, the odd-numbered flow channels 151 and the even-numbered flow channels 152 can be isolated from each other, and the water flow and heat exchange medium will not affect each other, thus ensuring the safety of users' drinking water (water use).

[0045] See again Figure 5 The second seal 4 and the heat-conducting plate 1 are integrally formed, reducing seams and connection points and reducing assembly steps.

[0046] The second seal 4 and the heat-conducting plate 1 can also be welded. Welding can form a very strong connection with a strength close to or even exceeding that of the material itself, thereby improving the structural strength of the heat exchanger.

[0047] The second seal 4 and the heat-conducting plate 1 can also be bonded together. Bonding can avoid the use of additional fasteners (such as bolts, rivets, etc.), thereby reducing the total weight of the structure. Moreover, the bonding operation is simple and does not require additional processing equipment.

[0048] It should be noted that there are multiple ways to connect the second seal 4 and the heat-conducting plate 1, and it is not limited to the methods described above.

[0049] See again Figure 5A chamfer is formed at the connection between the second seal 4 and the heat-conducting plate 1. The chamfer refers to the formation of a small-angle bevel at the connection between the second seal 4 and the heat-conducting plate 1. During the welding process, the chamfer can increase the contact area of ​​the weld, making the weld stronger; during the bonding process, the chamfer can make it easier for the adhesive to flow into and fill the gaps, ensuring that the adhesive is evenly distributed; the chamfer can also play a guiding role, guiding the water flow (or heat exchange medium) to flow in a set direction.

[0050] See again Figure 5 The heat-conducting plate 1 has a through-hole 18. The wall of the hole 18 extends toward the adjacent heat-conducting plate 1 to form a flange 19. The flange 19 is sealed to the flow hole 18 of the adjacent heat-conducting plate 1. Along the first direction, a plurality of flanges 19 are spaced apart, and a first channel 11 or a second channel 12 is provided between two adjacent flanges 19.

[0051] In practical applications, multiple guide holes 18 form a first guide channel 16 or a second guide channel 17 along a first direction. The hole wall of the guide hole 18 extends along the first direction to form a flange 19. The flange 19 extends to connect with the hole wall of the adjacent guide hole 18. That is to say, the flange 19 can also seal the first channel 11 or the second channel 12. Furthermore, a first channel 11 or a second channel 12 is provided between two adjacent flanges 19. Therefore, the flange 19 in the first guide channel 16 only seals the second channel 12, and the flange 19 in the second guide channel 17 only seals the first channel 11. This achieves the effect of isolating the first channel 11 and the second channel 12, preventing the water flow and the heat exchange medium from mixing.

[0052] See again Figure 5 The heat exchanger is provided with a first set of interfaces 10 and a second set of interfaces 20. The first set of interfaces 10 is connected to one of the first channel 11 and the second channel 12, and the second set of interfaces 20 is connected to the other of the first channel 11 and the second channel 12.

[0053] Specifically, the first set of interfaces 10 includes a first inlet and a first outlet. The first inlet is connected to both the inlet pipe and the first channel 11, and the first outlet is connected to both the first channel 11 and the outlet pipe. Water flows from the first inlet into the first channel 11, is heated by the heat exchange medium, and then flows from the first outlet to the outlet pipe for user use. The second set of interfaces 20 includes a second inlet and a second outlet. The second inlet is connected to both the heat tank and the second channel 12, and the second outlet is connected to both the heat tank and the second channel 12. The heat exchange medium in the heat tank enters the second channel 12 from the second inlet, exchanges heat with the water in the second channel 12, and then flows back to the heat tank from the second outlet for heating, so as to facilitate the next heat exchange.

[0054] See againFigure 1 The heat-conducting plate 1 has multiple baffle ribs 3 along its length. In practical applications, the multiple baffle ribs 3 on the heat-conducting plate 1 increase the surface area of ​​the heat-conducting plate 1, thereby providing more heat transfer surface. A larger heat exchange area means higher heat transfer efficiency. The baffle ribs 3 increase the resistance of fluid flow in the flow channel 15, prolonging the heat exchange time between the water flow and the heat exchange medium, thereby improving the heat exchange efficiency.

[0055] In one embodiment, the barrier rib 3 includes a first protrusion 31 and a second protrusion 32, which are V-shaped. The V-shaped rib changes the flow direction of the fluid, causing more turbulence to be generated when the fluid flows through the V-groove. Turbulence can increase the heat exchange efficiency between the fluid and the wall, thereby improving the overall heat exchange performance.

[0056] In one embodiment, the barrier ribs 3 are wavy. The shape of the wavy ribs increases the actual contact area between the fluid and the wall, providing more heat exchange opportunities and improving the heat exchange capacity per unit volume.

[0057] Furthermore, the opening directions of the V-shaped barrier strips 3 on the two adjacent heat-conducting plates 1 are opposite.

[0058] In practical applications, the flow directions in two adjacent first channels 11 and second channels 12 can be opposite, so that the water flow and the heat exchange medium form a counter-flow direction, which prolongs the heating time. In the corresponding first channels 11 and second channels 12, the "V"-shaped barrier ribs 3 are usually in the same direction as the water flow or heat exchange medium flow, which can guide the water flow and heat exchange medium, making its flow smoother. Therefore, since the flow directions in the first channels 11 and second channels 12 are opposite, the opening directions of the V-shaped barrier ribs 3 on the two adjacent heat conduction plates 1 are opposite, which, while playing a guiding role, prolongs the heat exchange time of the water flow and the heat exchange medium to a certain extent.

[0059] Unlike existing technologies, this application provides a heat exchanger and a water supply device. The heat exchanger includes multiple heat-conducting plates 1 and a first sealing element 2. The multiple heat-conducting plates 1 are arranged sequentially along a first direction, and a first channel 11 or a second channel 12 is formed between adjacent heat-conducting plates 1. The first channel 11 and the second channel 12 are alternately arranged and isolated from each other. The first sealing element 2 abuts against the outer sides 14 of two adjacent heat-conducting plates 1 to seal the first channel 11 or the second channel 12. Compared with existing technologies, the multiple heat-conducting plates 1 forming the first channel 11 and the second channel 12 along the first direction results in a smaller flow rate per unit area of ​​the longitudinal cross-section of the water flow inside the first channel 11. This allows the water flow to quickly absorb the heat of the heat exchange medium, improving the efficiency of heat exchange, saving water heating time, and achieving the effect of instant hot water. Furthermore, the first sealing element 2 seals the first channel 11 and the second channel 12, preventing drinking water or the heat exchange medium from leaking out, polluting the heater environment, and affecting the heat exchanger's heat exchange function.

[0060] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A heat exchanger, characterized by, The heat exchanger comprises: a plurality of heat-conducting plates (1), the plurality of heat-conducting plates (1) are arranged in sequence along a first direction, first channels (11) or second channels (12) are formed between adjacent heat-conducting plates (1), the first channels (11) and the second channels (12) are alternately arranged and isolated from each other; and a first sealing member (2), the first sealing member (2) is abutted between outer sides (14) of two adjacent heat-conducting plates (1) to seal the first channels (11) or the second channels (12).

2. The heat exchanger of claim 1, wherein At least one sealing groove (141) is formed on one side or opposite sides of the heat-conducting plate (1) facing the first sealing member (2), the first sealing member (2) is located in the sealing groove (141) of two adjacent heat-conducting plates (1) and abuts two adjacent heat-conducting plates (1) respectively.

3. The heat exchanger of claim 1, wherein The heat-conducting plate (1) comprises an outer side (14) and a main body (13), the outer periphery of the main body (13) is connected with the outer side (14), the first sealing member (2) abuts between two adjacent outer sides (14), and two adjacent main bodies (13) are spaced from each other to form the first channels (11) or the second channels (12).

4. The heat exchanger of claim 1, wherein The heat exchanger comprises a second sealing member (4), the second sealing member (4) is used for spacing the first channels (11) and the second channels (12).

5. The heat exchanger of claim 4, wherein The heat exchanger is provided with a first flow channel (16) and a second flow channel (17) penetrating each heat-conducting plate (1) along the first direction, the second sealing member (4) is used for sealing all the second channels (12) in the first flow channel (16), and the second sealing member (4) is used for sealing all the first channels (11) in the second flow channel (17).

6. The heat exchanger of claim 5, wherein The second sealing member (4) and the heat-conducting plate (1) are integrally formed, or the second sealing member (4) and the heat-conducting plate (1) are welded, or the second sealing member (4) and the heat-conducting plate (1) are bonded.

7. The heat exchanger of claim 6, wherein A chamfer is formed at the connection between the second sealing member (4) and the heat-conducting plate (1).

8. The heat exchanger of claim 1, wherein The heat-conducting plate (1) is provided with a through flow hole (18), a hole wall of one flow hole (18) extends towards adjacent heat-conducting plates (1) to form a flange portion (19), the flange portion (19) is sealingly connected with the flow hole (18) of the adjacent heat-conducting plate (1); along the first direction, a plurality of flange portions (19) are spaced, and the first channels (11) or the second channels (12) are arranged between two adjacent flange portions (19).

9. The heat exchanger of claim 1, wherein 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 channels (11) and the second channels (12), and the second group of interfaces (20) communicates with the other one of the first channels (11) and the second channels (12).

10. A water supply device characterized by comprising: The heat exchanger comprises the heat exchanger of any one of claims 1-9 and a heat tank, the heat tank communicates with the second channels (12).

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