Heat exchanger and water dispenser

Abstract

The present application discloses a heat exchanger and a water dispenser. The heat exchanger includes a heat exchange main body, the heat exchange main body includes a second plate and a first plate arranged alternately, and a partition plate disposed between the first plate and the second plate. The first plate is provided with a first heat exchange channel, the second plate is provided with a second heat exchange channel, and a first heat exchange medium in the first heat exchange channel and a second heat exchange medium in the second heat exchange channel exchange heat through the partition plate; wherein, the first plate is provided with a first connecting rib, the first connecting rib is cross-connected with the first heat exchange channel, and along the plate thickness direction, the height of the cross-connection part of the first connecting rib is less than the depth of the first heat exchange channel. The heat exchanger is small in volume and can be used in a water dispenser to quickly cool boiling water.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of heat exchange equipment, and more particularly to, but not limited to, a heat exchanger and a water dispenser. Background Art

[0002] Currently, there is no suitable heat exchange system in small household appliances to quickly cool boiling water to a suitable temperature. Industrial heat exchangers are not suitable for directly cooling boiling water quickly, and most of them have disadvantages such as large volume, complex process, and high price. Summary of the Invention

[0003] The main purpose of the embodiments of this application is to provide a heat exchanger with a small volume, which can be applied to a water dispenser and is suitable for quickly cooling boiling water.

[0004] To achieve the above purpose, the technical solution of the embodiments of this application is as follows:

[0005] A heat exchanger includes a heat exchange main body, and the heat exchange main body includes:

[0006] A first plate provided with a first heat exchange channel;

[0007] A second plate provided with a second heat exchange channel, and the second plate is alternately arranged with the first plate; and

[0008] A partition plate sandwiched between adjacent first and second plates, and the first heat exchange medium in the first heat exchange channel and the second heat exchange medium in the second heat exchange channel are arranged to exchange heat through the partition plate;

[0009] Wherein, the first plate is provided with a first connecting rib, the first connecting rib is cross-connected with the first heat exchange channel, and along the thickness direction of the first plate, the height of the cross-connected part of the first connecting rib is less than the depth of the first heat exchange channel.

[0010] In some exemplary embodiments, the first heat exchange channel penetrates through the first plate along the thickness direction of the first plate;

[0011] Along the thickness direction of the first plate, the height of the first connecting rib is less than the thickness of the first plate.

[0012] In some exemplary embodiments, the second plate is provided with a second connecting rib, the second connecting rib is cross-connected with the second heat exchange channel, and along the thickness direction of the second plate, the height of the cross-connected part of the second connecting rib is less than the depth of the second heat exchange channel.

[0013] In some exemplary embodiments, the second heat exchange channel penetrates through the second plate along the thickness direction of the second plate;

[0014] Along the thickness direction of the second plate, the height of the second connecting rib is less than the thickness of the second plate.

[0015] In some exemplary embodiments, the first heat exchange channel is a first spiral channel, one end of the first connecting rib extends towards the central region of the first spiral channel, and the other end passes through the first spiral channel and extends towards the edge of the first plate.

[0016] In some exemplary embodiments, the second heat exchange channel is a second spiral channel, one end of the second connecting rib extends towards the central region of the second spiral channel, and the other end passes through the second spiral channel and extends towards the edge of the second plate.

[0017] In some exemplary embodiments, the heat exchanger further includes a first pressing plate and a second pressing plate, and the heat exchange body is disposed between the first pressing plate and the second pressing plate;

[0018] The first pressing plate is provided with a first total inlet, a first total outlet, a second total inlet, and a second total outlet;

[0019] The first plate is further provided with a first inlet, a first outlet, a second inlet, and a second outlet, and two ends of the first heat exchange channel are respectively communicated with the first inlet and the first outlet;

[0020] The second plate is further provided with a third inlet, a third outlet, a fourth inlet, and a fourth outlet, and two ends of the second heat exchange channel are respectively communicated with the third inlet and the third outlet;

[0021] The partition plate is provided with a first communication hole, a second communication hole, a third communication hole, and a fourth communication hole;

[0022] The first inlets of multiple first plates, the fourth inlets of multiple second plates, the first communication hole of the partition plate, and the first total inlet are communicated to form a first liquid inlet passage; the first outlets of multiple first plates, the fourth outlets of multiple second plates, the second communication hole of the partition plate, and the first total outlet are communicated to form a first liquid outlet passage; the second inlets of multiple first plates, the third inlets of multiple second plates, the third communication hole of the partition plate, and the second total inlet are communicated to form a second liquid inlet passage; the second outlets of multiple first plates, the third outlets of multiple second plates, the fourth communication hole of the partition plate, and the second total outlet are communicated to form a second liquid outlet passage.

[0023] In some exemplary embodiments, the first heat exchange channel is a first spiral channel, the first inlet and the second outlet are located in the central region of the first spiral channel, and the first outlet and the second inlet are located outside the first spiral channel; and / or

[0024] The second heat exchange channel is a second spiral channel. The third outlet and the fourth inlet are located in the central region of the second spiral channel, and the third inlet and the fourth outlet are located on the outer side of the second spiral channel.

[0025] In some exemplary embodiments, the contour line of the edge of the first plate is symmetric about the first axis of symmetry. The first inlet and the second outlet are symmetrically arranged about the first axis of symmetry, and the first outlet and the second inlet are symmetrically arranged about the first axis of symmetry.

[0026] The contour line of the edge of the second plate is symmetric about the second axis of symmetry. The third inlet and the fourth outlet are symmetrically arranged about the second axis of symmetry, and the third outlet and the fourth inlet are symmetrically arranged about the second axis of symmetry.

[0027] In some exemplary embodiments, the projection of the second axis of symmetry on the plate surface of the first plate coincides with the first axis of symmetry, and the first plate and the second plate are the same.

[0028] In some exemplary embodiments, first sealing grooves surrounding the second inlet are provided on both plate surfaces of the first plate, and first sealing members are installed in the first sealing grooves.

[0029] Second sealing grooves surrounding the second outlet are provided on both plate surfaces of the first plate, and second sealing members are installed in the second sealing grooves.

[0030] Third sealing grooves surrounding the fourth inlet are provided on both plate surfaces of the second plate, and third sealing members are installed in the third sealing grooves.

[0031] Fourth sealing grooves surrounding the fourth outlet are provided on both plate surfaces of the second plate, and fourth sealing members are installed in the fourth sealing grooves.

[0032] In some exemplary embodiments, fifth sealing grooves are provided at the edges of both plate surfaces of the first plate. The first heat exchange channel, the first inlet, the first outlet, the second inlet, and the second outlet are located inside the annular fifth sealing grooves, and fifth sealing members are installed in the fifth sealing grooves.

[0033] Sixth sealing grooves are provided at the edges of both plate surfaces of the second plate. The second heat exchange channel, the third inlet, the third outlet, the fourth inlet, and the fourth outlet are located inside the annular sixth sealing grooves, and sixth sealing members are installed in the sixth sealing grooves.

[0034] In some exemplary embodiments, the edges of the first pressing plate protrude beyond the edges of the first plate, the second plate, and the partition plate, and the edges of the second pressing plate protrude beyond the edges of the first plate, the second plate, and the partition plate. The edges of the first pressing plate and the edges of the second pressing plate are fixed by fasteners.

[0035] In some exemplary embodiments, a first limiting groove is provided on the plate surface of the first pressing plate adjacent to the heat exchange body, and a second limiting groove is provided on the plate surface of the second pressing plate adjacent to the heat exchange body. Both ends of the heat exchange body extend into the first limiting groove and the second limiting groove respectively.

[0036] In some exemplary embodiments, the edge of the partition plate is bent to form a limiting rib for limiting the adjacent first plate or second plate.

[0037] A water dispenser includes the heat exchanger according to any one of the above embodiments.

[0038] In the heat exchanger of the embodiment of the present application, the first plate, the second plate, and the partition plate are stacked to form a heat exchange body, making the heat exchanger small in volume and suitable for small household appliances such as water dispensers. The first heat exchange medium can flow through the first heat exchange channel, and the second heat exchange medium can flow through the second heat exchange channel. The first heat exchange medium in the first heat exchange channel and the second heat exchange medium in the second heat exchange channel can exchange heat through the partition plate. When the heat exchanger is applied to a water dispenser, the hot water (such as boiling water) heated by the water dispenser can be quickly cooled to a suitable temperature, and the water dispenser can quickly discharge warm water suitable for direct drinking, facilitating the user to drink.

[0039] The first connecting rib on the first plate is cross-connected with the first heat exchange channel, and the height of the cross-connection part of the first connecting rib and the first heat exchange channel is less than the depth of the first heat exchange channel. The setting of the first connecting rib can enhance the structural strength of the first plate, avoid deformation of the first plate, causing leakage of the first heat exchange medium and affecting the normal use of the heat exchanger. In addition, the first connecting rib can partially block the first heat exchange channel, reducing the flow area of the first heat exchange channel without completely blocking the first heat exchange channel, so that the first heat exchange channel remains in a connected state and does not affect the flow and heat exchange of the first heat exchange medium. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0041] Figure 1Schematic top view structure of the heat exchanger according to an embodiment of the present application;

[0042] Figure 2 is Figure 1 Schematic A-A cross-sectional structure in;

[0043] Figure 3 is Figure 2 Enlarged schematic of the structure of part C in;

[0044] Figure 4 is Figure 2 Enlarged schematic of the structure of part D in;

[0045] Figure 5 is Figure 1 Schematic B-B cross-sectional structure in;

[0046] Figure 6 is Figure 5 Enlarged schematic of the structure of part E in;

[0047] Figure 7 Schematic left view structure of the heat exchanger according to an embodiment of the present application;

[0048] Figure 8 Schematic top view structure of the second pressing plate according to an embodiment of the present application;

[0049] Figure 9 is Figure 8 Schematic bottom view structure of the second pressing plate shown;

[0050] Figure 10 Schematic structure of the first plate according to an embodiment of the present application;

[0051] Figure 11 Schematic structure of the second plate according to an embodiment of the present application;

[0052] Figure 12 Schematic top view structure of the partition plate according to an embodiment of the present application;

[0053] Figure 13 is Figure 12 Schematic three-dimensional structure of the partition plate shown;

[0054] Figure 14 Schematic three-dimensional structure of the first plate according to another embodiment of the present application;

[0055] Figure 15 is Figure 14 Schematic top view structure of the first plate shown;

[0056] Figure 16 Schematic structure of the second plate according to another embodiment of the present application;

[0057] Figure 17 Schematic structural diagram of the first plate and the second plate according to another embodiment of the present application.

[0058] The reference numerals are as follows:

[0059] 1 - First pressing plate, 11 - First main inlet, 12 - First main outlet, 13 - Second main inlet, 14 - Second main outlet, 15 - First limiting groove

[0060] 2 - Second pressing plate, 21 - Second limiting groove

[0061] 3 - Heat exchange body

[0062] 4 - First plate, 40 - First axis of symmetry, 41 - First heat exchange channel, 42 - First inlet, 43 - First outlet, 44 - Second inlet, 45 - Second outlet, 46 - First connecting rib, 47 - First sealing groove, 48 - Second sealing groove, 49 - Fifth sealing groove

[0063] 5 - Second plate, 50 - First axis of symmetry, 51 - Second heat exchange channel, 52 - Third inlet, 53 - Third outlet, 54 - Fourth inlet, 55 - Fourth outlet, 56 - Second connecting rib, 57 - Third sealing groove, 58 - Fourth sealing groove, 59 - Sixth sealing groove

[0064] 6 - Partition plate, 61 - First communication hole, 62 - Second communication hole, 63 - Third communication hole, 64 - Fourth communication hole, 65 - Limiting rib

[0065] 7 - Fastener

[0066] The realization of the purpose of the present application, functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0067] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0068] Embodiment 1:

[0069] As Figures 1 - 13 shown, the embodiment of the present application provides a heat exchanger.

[0070] As Figures 2 - 7As shown, the heat exchanger includes a heat exchange body 3, and the heat exchange body 3 includes: a first plate 4, a second plate 5, and a partition plate 6. The second plate 5 is alternately arranged with the first plate 4, and the partition plate 6 is clamped between adjacent first plates 4 and second plates 5.

[0071] As Figure 10 shown, the first plate 4 is provided with a first heat exchange channel 41; as Figure 11 shown, the second plate 5 is provided with a second heat exchange channel 51; the first heat exchange medium in the first heat exchange channel 41 and the second heat exchange medium in the second heat exchange channel 51 can exchange heat through the partition plate 6.

[0072] As Figure 3 、 Figure 6 and Figure 10 shown, the first plate 4 is provided with a first connecting rib 46. The first connecting rib 46 is cross-connected with the first heat exchange channel 41, and along the thickness direction of the first plate 4, the height of the cross-connection part of the first connecting rib 46 is less than the depth of the first heat exchange channel 41.

[0073] In this heat exchanger, the first plate 4, the second plate 5, and the partition plate 6 are stacked to form the heat exchange body 3, making the volume of the heat exchanger small and suitable for small household appliances such as water dispensers. The first heat exchange medium (such as hot water or other heat exchange media) can flow through the first heat exchange channel 41, and the second heat exchange medium (such as cold water or other heat exchange media) can flow through the second heat exchange channel 51. The first heat exchange medium in the first heat exchange channel 41 and the second heat exchange medium in the second heat exchange channel 51 can exchange heat through the partition plate 6. When this heat exchanger is applied to a water dispenser, it can quickly cool the hot water (such as boiling water) heated by the water dispenser to a suitable temperature, enabling the water dispenser to quickly discharge warm water suitable for direct drinking, which is convenient for users to drink.

[0074] On the first plate 4, the first connecting rib 46 is cross-connected with the first heat exchange channel 41, and the height of the cross-connection part of the first connecting rib 46 with the first heat exchange channel 41 is less than the depth of the first heat exchange channel 41, so that the first connecting rib 46 can partially block the first heat exchange channel 41, reducing the flow area of the first heat exchange channel 41 without completely blocking the first heat exchange channel 41, making the first heat exchange channel 41 still in a connected state and not affecting the flow and heat exchange of the first heat exchange medium.

[0075] The setting of the first connecting rib 46 can enhance the structural strength of the first plate 4, prevent the first plate 4 from deforming, causing leakage of the first heat exchange medium and affecting the normal use of the heat exchanger.

[0076] In some exemplary embodiments, as Figure 2 and Figure 5 、 Figure 7 shown, the heat exchanger further includes a first pressing plate 1 and a second pressing plate 2, and the heat exchange body 3 is arranged between the first pressing plate 1 and the second pressing plate 2.

[0077] Among them, as Figure 1 and Figure 5 shown, the first pressing plate 1 is provided with a first main inlet 11, a first main outlet 12, a second main inlet 13, and a second main outlet 14.

[0078] As Figure 10 shown, the first plate 4 is further provided with a first inlet 42, a first outlet 43, a second inlet 44, and a second outlet 45. The two ends of the first heat exchange channel 41 are respectively communicated with the first inlet 42 and the first outlet 43.

[0079] As Figure 11 shown, the second plate 5 is further provided with a third inlet 52, a third outlet 53, a fourth inlet 54, and a fourth outlet 55. The two ends of the second heat exchange channel 51 are respectively communicated with the third inlet 52 and the third outlet 53.

[0080] As Figure 12 and Figure 13 shown, the partition plate 6 is provided with a first communication hole 61, a second communication hole 62, a third communication hole 63, and a fourth communication hole 64.

[0081] As Figure 3 shown, the first inlets 42 of multiple first plates 4, the fourth inlets 54 of multiple second plates 5, the first communication hole 61 of the partition plate 6, and the first main inlet 11 of the first pressing plate 1 are communicated to form a first liquid inlet passage.

[0082] The first outlets 43 of multiple first plates 4, the fourth outlets 55 of multiple second plates 5, the second communication hole 62 of the partition plate 6, and the first main outlet 12 of the first pressing plate 1 are communicated to form a first liquid outlet passage.

[0083] The second inlets 44 of multiple first plates 4, the third inlets 52 of multiple second plates 5, the third communication hole 63 of the partition plate 6, and the second main inlet 13 of the first pressing plate 1 are communicated to form a second liquid inlet passage.

[0084] As Figure 3 shown, the second outlets 45 of multiple first plates 4, the third outlets 53 of multiple second plates 5, the fourth communication hole 64 of the partition plate 6, and the second main outlet 14 of the first pressing plate 1 are communicated to form a second liquid outlet passage.

[0085] The heat exchanger includes a plurality of plates arranged in a stacked manner. The plurality of plates include: a first pressing plate 1, a second pressing plate 2, a first plate 4, a second plate 5, and a partition plate 6. That is, the first pressing plate 1, the second pressing plate 2, the first plate 4, the second plate 5, and the partition plate 6 are stacked to form the heat exchanger. The first total inlet 11 of the first pressing plate 1, the first inlet 42 of the first plate 4, the fourth inlet 54 of the second plate 5, and the first communication hole 61 of the partition plate 6 are all through holes and are correspondingly arranged, so that the first inlets 42 of the plurality of first plates 4, the fourth inlets 54 of the plurality of second plates 5, the first communication hole 61 of the partition plate 6, and the first total inlet 11 of the first pressing plate 1 are connected to form a first liquid inlet passage (as Figure 3 shown); the first outlet 43 of the first plate 4, the fourth outlet 55 of the second plate 5, the second communication hole 62 of the partition plate 6, and the first total outlet 12 of the first pressing plate 1 are all through holes and are correspondingly arranged, so that the first outlets 43 of the plurality of first plates 4, the fourth outlets 55 of the plurality of second plates 5, the second communication hole 62 of the partition plate 6, and the first total outlet 12 of the first pressing plate 1 are connected to form a first liquid outlet passage; since the first inlet 42 and the first outlet 43 of the first plate 4 are connected through the first heat exchange channel 41, the first liquid inlet passage and the first liquid outlet passage are connected through the first heat exchange channels 41 of the plurality of first plates 4 to form a first heat exchange medium flow channel, and the first heat exchange channels 41 of the plurality of first plates 4 form a parallel branch connecting the first liquid inlet passage and the first liquid outlet passage.

[0086] The second inlet 44 of the first plate 4, the third inlet 52 of the second plate 5, the third communication hole 63 of the partition plate 6, and the second total inlet 13 of the first pressing plate 1 are all through holes and are correspondingly arranged, so that the second inlets 44 of the plurality of first plates 4, the third inlets 52 of the plurality of second plates 5, the third communication hole 63 of the partition plate 6, and the second total inlet 13 of the first pressing plate 1 are connected to form a second liquid inlet passage; the second outlet 45 of the first plate 4, the third outlet 53 of the second plate 5, the fourth communication hole 64 of the partition plate 6, and the second total outlet 14 of the first pressing plate 1 are all through holes and are correspondingly arranged, so that the second outlets 45 of the plurality of first plates 4, the third outlets 53 of the plurality of second plates 5, the fourth communication hole 64 of the partition plate 6, and the second total outlet 14 of the first pressing plate 1 are connected to form a second liquid outlet passage (as Figure 3 shown); since the third inlet 52 and the third outlet 53 of the second plate 5 are connected through the second heat exchange channel 51, the second liquid inlet passage and the second liquid outlet passage are connected through the second heat exchange channels 51 of the plurality of second plates 5 to form a second heat exchange medium flow channel, and the second heat exchange channels 51 of the plurality of second plates 5 form a parallel branch connecting the second liquid inlet passage and the second liquid outlet passage.

[0087] When the heat exchanger works, the first heat exchange medium (such as hot water or other heat exchange media) can flow through the first heat exchange medium flow channel (the flow direction of the first heat exchange medium is as Figure 3As shown by the solid arrows, a second heat exchange medium (such as cold water or other heat exchange media) can flow through a second heat exchange medium flow channel (the flow direction of the second heat exchange medium is as shown by the hollow arrows). Since the temperatures of the first heat exchange medium and the second heat exchange medium are different, when the first heat exchange medium flows through the first heat exchange channel 41 of the first heat exchange medium flow channel and the second heat exchange medium flows through the second heat exchange channel 51 of the second heat exchange medium flow channel, the first heat exchange medium and the second heat exchange medium can exchange heat through the partition 6. Since multiple first heat exchange channels 41 are arranged in parallel and multiple second heat exchange channels 51 are arranged in parallel, the heat exchanger is a parallel plate heat exchanger, and the heat exchange efficiency between the first heat exchange medium and the second heat exchange medium is high. Figure 3 As shown by the hollow arrows. Since the temperatures of the first heat exchange medium and the second heat exchange medium are different, when the first heat exchange medium flows through the first heat exchange channel 41 of the first heat exchange medium flow channel and the second heat exchange medium flows through the second heat exchange channel 51 of the second heat exchange medium flow channel, the first heat exchange medium and the second heat exchange medium can exchange heat through the partition 6. Since multiple first heat exchange channels 41 are arranged in parallel and multiple second heat exchange channels 51 are arranged in parallel, the heat exchanger is a parallel plate heat exchanger, and the heat exchange efficiency between the first heat exchange medium and the second heat exchange medium is high.

[0088] In the heat exchanger according to the embodiment of the present application, the first pressing plate 1, the second pressing plate 2, the first plate 4, the second plate 5 and the partition 6 are stacked to form a heat exchanger with a small volume, which is suitable for small household appliances such as water dispensers; multiple first heat exchange channels 41 of the first heat exchange medium flow channel are arranged in parallel, and multiple second heat exchange channels 51 of the second heat exchange medium flow channel are arranged in parallel, so that the heat exchange efficiency between the first heat exchange medium flowing through the first heat exchange medium flow channel and the second heat exchange medium flowing through the second heat exchange medium flow channel is high, which is convenient for quickly cooling the hot water (such as boiling water) heated by the water dispenser to a suitable temperature, and the water dispenser can quickly discharge warm water suitable for direct drinking, which is convenient for users to drink.

[0089] Some exemplary embodiments, such as Figure 3 , Figure 6 and Figure 10 As shown, the first heat exchange channel 41 penetrates the first plate 4 along the plate thickness direction of the first plate 4, and along the plate thickness direction of the first plate 4, the height of the first connecting rib 46 is less than the plate thickness of the first plate 4.

[0090] Such as Figure 6 As shown, the first heat exchange channel 41 penetrates the first plate 4 along the plate thickness direction, so that the depth of the first heat exchange channel 41 is equal to the plate thickness of the first plate 4; as Figure 3 As shown, along the plate thickness direction of the first plate 4, the height of the first connecting rib 46 is less than the plate thickness of the first plate 4. The height of the first connecting rib 46 is less than the depth of the first heat exchange channel 41. Therefore, while enhancing the structural strength of the first plate 4, the first connecting rib 46 only partially blocks the first heat exchange channel 41 and does not affect the flow and heat exchange of the first heat exchange medium.

[0091] Some exemplary embodiments, such as Figure 3 , Figure 6 and Figure 10 As shown, the first heat exchange channel 41 can be a hollowed-out part penetrating the first plate 4, and the first connecting rib 46 can be formed by partially hollowing out the first plate 4 along the plate thickness direction, and the remaining non-hollowed-out part forms the first connecting rib 46.

[0092] It should be understood that the first heat exchange channel 41 can also be set to have a depth less than the thickness of the first plate 4, and the height of the first connecting rib 46 is less than the depth of the first heat exchange channel 41.

[0093] Some exemplary embodiments, such as Figure 3 , Figure 6 and Figure 11 as shown, the second plate 5 is provided with second connecting ribs 56, the second connecting ribs 56 are cross-connected with the second heat exchange channel 51, and along the thickness direction of the second plate 5, the height of the cross-connection part of the second connecting ribs 56 is less than the depth of the second heat exchange channel 51.

[0094] On the second plate 5, the second connecting ribs 56 are cross-connected with the second heat exchange channel 51, and the height of the cross-connection part of the second connecting ribs 56 with the second heat exchange channel 51 is less than the depth of the second heat exchange channel 51, so that the second connecting ribs 56 can partially block the second heat exchange channel 51, reducing the flow area of the second heat exchange channel 51, without completely blocking the second heat exchange channel 51, so that the second heat exchange channel 51 remains in a connected state, without affecting the flow and heat exchange of the second heat exchange medium.

[0095] The setting of the second connecting ribs 56 can enhance the structural strength of the second plate 5, avoid deformation of the second plate 5, causing leakage of the second heat exchange medium and affecting the normal use of the heat exchanger.

[0096] Some exemplary embodiments, such as Figure 3 , Figure 6 and Figure 11 as shown, the second heat exchange channel 51 penetrates through the second plate 5 along the thickness direction of the second plate 5, and along the thickness direction of the second plate 5, the height of the second connecting ribs 56 is less than the thickness of the second plate 5.

[0097] As Figure 6 shown, the second heat exchange channel 51 penetrates through the second plate 5 along the thickness direction, so that the depth of the second heat exchange channel 51 is equal to the thickness of the second plate 5; as Figure 3 shown, along the thickness direction of the second plate 5, the height of the second connecting ribs 56 is less than the thickness of the second plate 5. The height of the second connecting ribs 56 is less than the depth of the second heat exchange channel 51. Therefore, while enhancing the structural strength of the second plate 5, the second connecting ribs 56 only partially block the second heat exchange channel 51 and do not affect the flow and heat exchange of the second heat exchange medium.

[0098] Some exemplary embodiments, such as Figure 3 , Figure 6 and Figure 11 as shown, the second heat exchange channel 51 can be a hollowed-out part penetrating through the second plate 5, and the second connecting ribs 56 can be formed by partially hollowing out the second plate 5 along the thickness direction, and the remaining non-hollowed-out part forms the second connecting ribs 56.

[0099] It should be understood that the second heat exchange channel 51 can also be set to have a depth less than the thickness of the second plate 5, and the height of the second connecting rib 56 is less than the depth of the second heat exchange channel 51.

[0100] Some exemplary embodiments, such as Figure 10 As shown, the first heat exchange channel 41 is a first spiral channel, and one end of the first connecting rib 46 extends towards the central region of the first spiral channel, and the other end passes through the first spiral channel and extends towards the edge of the first plate 4.

[0101] The first heat exchange channel 41 is a first spiral channel, that is, the first heat exchange channel 41 is spiral. In the first spiral channel, all parts are smoothly connected, so that the flow channel resistance is small, reducing the resistance of the first heat exchange medium when flowing in the first spiral channel, which is beneficial to reducing the power of the water pump required to drive the first heat exchange medium to flow. In addition, the first spiral channel is a curved flow channel. When the first heat exchange medium flows in the first spiral channel, under the action of the tangential acceleration, the first heat exchange medium generates intense turbulence, making the mixing of the first heat exchange medium uniform and the overall heat exchange effect good.

[0102] The first connecting rib 46 extends along the radial direction of the first spiral channel, and one end of the first connecting rib extends towards the central region of the first spiral channel, and the other end passes through the first spiral channel and extends to the edge of the first plate 4. When the first connecting rib 46 passes through the first spiral channel, the first connecting rib 46 is cross-connected with the first spiral channel, enhancing the structural strength of the first plate 4 while not affecting the flow and heat exchange of the first heat exchange medium in the first spiral channel.

[0103] A plurality of first connecting ribs 46 (such as six or other quantities) can be provided, and the plurality of first connecting ribs 46 can be arranged along the circumferential direction of the first spiral channel.

[0104] It should be understood that the first heat exchange channel 41 is not limited to being spiral, and can also be other shapes, such as serpentine, etc.

[0105] Some exemplary embodiments, such as Figure 11 As shown, the second heat exchange channel 51 is a second spiral channel, and one end of the second connecting rib 56 extends towards the central region of the second spiral channel, and the other end passes through the second spiral channel and extends towards the edge of the second plate 5.

[0106] The second heat exchange channel 51 is a second spiral channel, that is, the second heat exchange channel 51 is spiral. In the second spiral channel, all parts are smoothly connected, so that the flow channel resistance is small, reducing the resistance of the second heat exchange medium when flowing in the second spiral channel, which is beneficial to reducing the power of the water pump required to drive the flow of the second heat exchange medium. In addition, the second spiral channel is a curved flow channel. When the second heat exchange medium flows in the second spiral channel, under the action of the tangential acceleration, the second heat exchange medium generates intense turbulence, making the mixing of the second heat exchange medium uniform and the overall heat exchange effect good.

[0107] The second connecting rib 56 extends along the radial direction of the second spiral channel, and one end of the second connecting rib extends towards the central region of the second spiral channel, and the other end passes through the second spiral channel and extends to the edge of the second plate 5. When the second connecting rib 56 passes through the second spiral channel, the second connecting rib 56 is cross-connected with the second spiral channel, while enhancing the structural strength of the second plate 5, it will not affect the flow and heat exchange of the second heat exchange medium in the second spiral channel.

[0108] A plurality of second connecting ribs 56 (such as six or other quantities) can be provided, and the plurality of second connecting ribs 56 can be arranged along the circumferential direction of the second spiral channel.

[0109] It should be understood that the second heat exchange channel 51 is not limited to being spiral, and can also be other shapes, such as serpentine, etc.

[0110] Some exemplary embodiments, such as Figure 10 As shown, the first heat exchange channel 41 is a first spiral channel, the first inlet 42 and the second outlet 45 are located in the central region of the first spiral channel, and the first outlet 43 and the second inlet 44 are located outside the first spiral channel.

[0111] Such as Figure 11 As shown, the second heat exchange channel 51 is a second spiral channel, the third outlet 53 and the fourth inlet 54 are located in the central region of the second spiral channel, and the third inlet 52 and the fourth outlet 55 are located outside the second spiral channel.

[0112] The first inlet 42 and the second outlet 45 can be located in the central region of the first spiral channel, the first outlet 43 and the second inlet 44 can be located outside the first spiral channel, and both ends of the first spiral channel are respectively communicated with the first inlet 42 and the first outlet 43, so that the first heat exchange medium can flow into the first spiral channel through the first inlet 42 and flow out from the first outlet 43. Therefore, the first heat exchange medium gradually flows from the central region of the first spiral channel to the outside (the first heat exchange medium flows in the Figure 10 clockwise direction shown by the arrow in

[0113] The third outlet 53 and the fourth inlet 54 may be located in the central region of the second spiral channel, the third inlet 52 and the fourth outlet 55 may be located outside the second spiral channel, and both ends of the second spiral channel are respectively communicated with the third inlet 52 and the third outlet 53, so that the second heat exchange medium can flow into the second spiral channel through the third inlet 52 and flow out from the third outlet 53. Therefore, the second heat exchange medium gradually flows from the outside of the second spiral channel to the central region (the second heat exchange medium flows in the counterclockwise direction shown by the arrow in Figure 11 ).

[0114] The first heat exchange medium gradually flows from the central region of the first spiral channel to the outside, and the second heat exchange medium gradually flows from the outside of the second spiral channel to the central region, so that the flow directions of the first heat exchange medium and the second heat exchange medium are opposite, which is beneficial to the full contact heat exchange between the first heat exchange medium and the second heat exchange medium and improves the heat exchange efficiency.

[0115] In some exemplary embodiments, as Figure 10 shown, first sealing grooves 47 surrounding the second inlet 44 are provided on both plate surfaces of the first plate 4, and first sealing members (not shown) are installed in the first sealing grooves 47; second sealing grooves 48 surrounding the second outlet 45 are provided on both plate surfaces of the first plate 4, and second sealing members (not shown) are installed in the second sealing grooves 48.

[0116] As Figure 10 shown, first sealing grooves 47 are provided on both plate surfaces of the first plate 4, the first sealing grooves 47 are arranged to surround the second inlet 44, and first sealing members can be installed in the first sealing grooves 47. The first sealing members can be in abutting seal with adjacent plates (such as the partition plate 6, the first pressing plate 1 or the second pressing plate 2) to seal the second inlet 44; as Figure 3 and Figure 10 shown, second sealing grooves 48 are provided on both plate surfaces of the first plate 4, the second sealing grooves 48 are arranged to surround the second outlet 45, and second sealing members can be installed in the second sealing grooves 48. The second sealing members can be in abutting seal with adjacent plates (such as the partition plate 6, the first pressing plate 1 or the second pressing plate 2) to seal the second outlet 45.

[0117] Sealing the second inlet 44 and the second outlet 45 of the first plate 4 can prevent the second heat exchange medium in the second heat exchange medium flow channel from flowing into the first heat exchange channel 41 through the second inlet 44 and the second outlet 45 on the first plate 4, and prevent the first heat exchange medium in the first heat exchange channel 41 from flowing into the second heat exchange medium through the second inlet 44 and the second outlet 45, thereby causing the mixing of the first heat exchange medium and the second heat exchange medium.

[0118] In some exemplary embodiments, as Figure 11As shown, third sealing grooves 57 are provided on both side surfaces of the second plate 5 around the fourth inlet 54, and third sealing members (not shown) are installed in the third sealing grooves 57; fourth sealing grooves 58 are provided on both side surfaces of the second plate 5 around the fourth outlet 55, and fourth sealing members (not shown) are installed in the fourth sealing grooves 58.

[0119] As Figure 3 and Figure 11 shown, third sealing grooves 57 are provided on both side surfaces of the second plate 5, the third sealing grooves 57 are arranged around the fourth inlet 54, a third sealing member can be installed in the third sealing grooves 57, and the third sealing member can be in abutting seal with an adjacent plate (such as the partition plate 6, the first pressing plate 1 or the second pressing plate 2) to achieve the sealing of the fourth inlet 54; as Figure 11 shown, fourth sealing grooves 58 are provided on both side surfaces of the second plate 5, the fourth sealing grooves 58 are arranged around the fourth outlet 55, a fourth sealing member can be installed in the fourth sealing grooves 58, and the fourth sealing member can be in abutting seal with an adjacent plate (such as the partition plate 6, the first pressing plate 1 or the second pressing plate 2) to achieve the sealing of the fourth outlet 55.

[0120] Sealing the fourth inlet 54 and the fourth outlet 55 of the second plate 5 can prevent the first heat exchange medium in the first heat exchange medium flow channel from flowing into the second heat exchange channel 51 through the fourth inlet 54 and the fourth outlet 55 on the second plate 5, and prevent the second heat exchange medium in the second heat exchange channel 51 from flowing into the first heat exchange medium through the fourth inlet 54 and the fourth outlet 55, thereby causing the mixing of the first heat exchange medium and the second heat exchange medium.

[0121] In some exemplary embodiments, such as Figure 4 and Figure 10 shown, fifth sealing grooves 49 are provided at the edges of both side surfaces of the first plate 4, and the first heat exchange channel 41, the first inlet 42, the first outlet 43, the second inlet 44 and the second outlet 45 are located inside the annular fifth sealing grooves 49, and fifth sealing members (not shown) are installed in the fifth sealing grooves 49.

[0122] As Figure 4 and Figure 11 shown, sixth sealing grooves 59 are provided at the edges of both side surfaces of the second plate 5, and the second heat exchange channel 51, the third inlet 52, the third outlet 53, the fourth inlet 54 and the fourth outlet 55 are located inside the annular sixth sealing grooves 59, and sixth sealing members (not shown) are installed in the sixth sealing grooves 59.

[0123] As Figure 4 and Figure 10As shown, on the edges of the two side surfaces of the first plate 4, there are fifth sealing grooves 49. The fifth sealing grooves 49 surround the outside of the first heat exchange channel 41, the first inlet 42, the first outlet 43, the second inlet 44, and the second outlet 45. A fifth sealing member can be installed in the fifth sealing grooves 49, and the fifth sealing member can be in contact and sealed with an adjacent plate (such as the partition plate 6, the first pressing plate 1, or the second pressing plate 2) to prevent the first heat exchange medium in the first heat exchange channel 41 from leaking from the edge of the first plate 4.

[0124] As Figure 4 and Figure 11 As shown, on the edges of the two side surfaces of the second plate 5, there are sixth sealing grooves 59. The sixth sealing grooves 59 surround the outside of the second heat exchange channel 51, the third inlet 52, the third outlet 53, the fourth inlet 54, and the fourth outlet 55. A sixth sealing member can be installed in the sixth sealing grooves 59, and the sixth sealing member can be in contact and sealed with an adjacent plate (such as the partition plate 6, the first pressing plate 1, or the second pressing plate 2) to prevent the second heat exchange medium in the second heat exchange channel 51 from leaking from the edge of the second plate 5.

[0125] Some exemplary embodiments, such as Figure 10 and Figure 11 As shown, the structures of the first plate 4 and the second plate 5 are different. For example, the shapes of the first heat exchange channel 41 and the second heat exchange channel 51 are different. Therefore, two different sets of molds are required for processing the first plate 4 and the second plate 5.

[0126] Some exemplary embodiments, such as Figure 2 and Figure 7 As shown, the edges of the first pressing plate 1 protrude beyond the edges of the first plate 4, the second plate 5, and the partition plate 6. The edges of the second pressing plate 2 protrude beyond the edges of the first plate 4, the second plate 5, and the partition plate 6. The edges of the first pressing plate 1 and the second pressing plate 2 are fixed by fasteners 7.

[0127] The edges of the first pressing plate 1 protrude beyond the edges of the first plate 4, the second plate 5, and the partition plate 6; the edges of the second pressing plate 2 protrude beyond the edges of the first plate 4, the second plate 5, and the partition plate 6; as Figure 1 , Figure 8 and Figure 9 As shown, the edges of the first pressing plate 1 and the second pressing plate 2 may both be provided with a plurality of fastening holes. The plurality of fastening holes on the first pressing plate 1 may be arranged circumferentially (such as evenly arranged), and the plurality of fastening holes on the second pressing plate 2 may be arranged circumferentially (such as evenly arranged); as Figure 2 and Figure 7As shown, multiple fasteners 7 (such as screws, etc.) can respectively pass through multiple fastening holes of the first pressing plate 1 and multiple fastening holes of the second pressing plate 2 to fix the first pressing plate 1 and the second pressing plate 2. The first pressing plate 1 and the second pressing plate 2 can press the heat exchange body 3 formed by the first plate 4, the partition plate 6, and the second plate 5 to form a heat exchanger, and the fixing method is simple.

[0128] Some exemplary embodiments, such as Figure 4 and Figure 8 As shown, a first limiting groove 15 is provided on the plate surface of the first pressing plate 1 adjacent to the heat exchange body 3, and a second limiting groove 21 is provided on the plate surface of the second pressing plate 2 adjacent to the heat exchange body 3. Both ends of the heat exchange body 3 respectively extend into the first limiting groove 15 and the second limiting groove 21.

[0129] A first limiting groove 15 is provided on the plate surface of the first pressing plate 1 adjacent to the heat exchange body 3, and a second limiting groove 21 is provided on the plate surface of the second pressing plate 2 adjacent to the heat exchange body 3. Both ends of the heat exchange body 3 respectively extend into the first limiting groove 15 and the second limiting groove 21, and the shapes of both ends of the heat exchange body 3 respectively match the shapes of the first limiting groove 15 and the second limiting groove 21 to limit the heat exchange body 3 through the first limiting groove 15 and the second limiting groove 21, facilitating the subsequent assembly and fixation of the heat exchanger.

[0130] Some exemplary embodiments, such as Figure 4 and Figure 13 As shown, a limiting rib 65 for limiting the adjacent first plate 4 or second plate 5 is formed by bending the edge of the partition plate 6.

[0131] The edge of the partition plate 6 is bent towards one side to form a limiting rib 65. The limiting rib 65 can be annular, and the first plate 4 or the second plate 5 adjacent to the partition plate 6 can be placed inside the annular rib, so as to limit the adjacent first plate 4 or second plate 5 through the annular rib, facilitating the assembly to form the heat exchange body 3.

[0132] In some exemplary embodiments, such as Figure 10 As shown, the plate thickness of the first plate 4 is 2 cm; the width W1 of the first heat exchange channel 41 is 2 cm, and the depth is 2 cm (equal to the plate thickness of the first plate 4); the width W2 of the first connecting rib 46 is 2 cm, and the height along the plate thickness direction is 0.8 cm.

[0133] The first plate 4 can be a heat insulating plate. For example, the first plate 4 can be a plastic plate. Of course, the first plate 4 can also be of other materials. For example, the first plate 4 can be a metal plate.

[0134] In some exemplary embodiments, such as Figure 11As shown, the thickness of the second plate 5 is 2 cm; the width W3 of the second heat exchange channel 51 is 2 cm, and the depth is 2 cm (equal to the thickness of the second plate 5); the width W4 of the second connecting rib 56 is 2 cm, and the height along the plate thickness direction is 0.8 cm.

[0135] The second plate 5 can be a heat insulation plate, for example: the second plate 5 can be a plastic plate. Of course, the second plate 5 can also be made of other materials, for example: the second plate 5 can be a metal plate.

[0136] In some exemplary embodiments, the partition 6 can be a heat conducting plate with good heat conducting effect, for example: the partition 6 can be a metal plate (for example: stainless steel plate (food grade)). The thickness of the partition 6 is 0.3 cm.

[0137] In some exemplary embodiments, the first pressing plate 1 can be a plastic plate, a metal plate or other materials, and the second pressing plate 2 can be a plastic plate, a metal plate or other materials.

[0138] It should be understood that the materials, dimensions, etc. of the first pressing plate 1, the second pressing plate 2, the first plate 4, the second plate 5 and the partition 6 are not limited to the above, and can also be adjusted according to actual needs.

[0139] The embodiment of the present application also provides a water dispenser, including the heat exchanger provided in any of the above embodiments.

[0140] The water dispenser may further include a heater for heating water. In the heat exchanger, the first total inlet 11 is communicated with the water outlet of the heater, and the first total outlet is communicated with the water outlet nozzle of the water dispenser; the second total inlet 13 is communicated with the water source, and the second total outlet is communicated with the water inlet of the heater. In this way, the cold water from the water source can enter the second heat exchange channel 51 through the second total inlet 13, and the hot water (such as boiling water) discharged from the water outlet of the heater can enter the first heat exchange channel 41 through the first total inlet 11, so that the cold and hot water can exchange heat in the heat exchanger, and the temperature of the hot water after heat exchange can be reduced to a suitable temperature. Therefore, the water outlet nozzle of the water dispenser can quickly discharge warm water suitable for direct drinking, which is convenient for users to drink.

[0141] Embodiment Two:

[0142] This embodiment provides a heat exchanger and a water dispenser, and the main differences from Embodiment One are: the first plate and the second plate.

[0143] In this embodiment, as Figures 14 - 17 shown, the contour line of the edge of the first plate 4 is symmetrical about the first symmetry axis 40, the first inlet 42 and the second outlet 45 are symmetrically arranged about the first symmetry axis 40, and the first outlet 43 and the second inlet 44 are symmetrically arranged about the first symmetry axis 40.

[0144] The contour line of the edge of the second plate 5 is symmetric about the second symmetry axis 50. The third inlet 52 and the fourth outlet 55 are symmetrically arranged about the second symmetry axis 50. The third outlet 53 and the fourth inlet 54 are symmetrically arranged about the second symmetry axis 50.

[0145] Wherein, the projection of the second symmetry axis 50 on the plate surface of the first plate 4 may coincide with the first symmetry axis 40, and the first plate 4 and the second plate 5 may be set to be the same.

[0146] In this embodiment, the first plate 4 and the second plate 5 of the heat exchanger are arranged in parallel. On the first plate 4, the first inlet 42 and the second outlet 45 are symmetrically arranged about the first symmetry axis 40, and the first outlet 43 and the second inlet 44 are symmetrically arranged about the first symmetry axis 40. On the second plate 5, the third inlet 52 and the fourth outlet 55 are symmetrically arranged about the second symmetry axis 50, and the third outlet 53 and the fourth inlet 54 are symmetrically arranged about the second symmetry axis 50. And because the projection of the second symmetry axis 50 on the plate surface of the first plate 4 coincides with the first symmetry axis 40 (or, the projection of the first symmetry axis 40 on the plate surface of the second plate 5 coincides with the second symmetry axis 50), the relative position relationship between the first inlet 42 and the first outlet 43 is the same as the relative position relationship between the third inlet 52 and the third outlet 53. Therefore, the shape of the first heat exchange channel 41 connecting the first inlet 42 and the first outlet 43 can be set to be the same as the shape of the second heat exchange channel 51 connecting the third inlet 52 and the third outlet 53. In addition, the contour line of the edge of the first plate 4 is symmetric about the first symmetry axis 40, and the contour line of the edge of the second plate 5 is symmetric about the second symmetry axis 50. Therefore, the first plate 4 and the second plate 5 can be set to be the same (including the structure, shape, size, etc. are all the same). Furthermore, a set of molds can be used for processing and manufacturing the first plate 4 and the second plate 5, which reduces the mold cost and improves the processing efficiency. When assembling to form a heat exchanger, only need to rotate the second plate 5 by 180 degrees along the axis perpendicular to the plate surface on the basis of the state shown by the first plate 4.

[0147] In summary, the heat exchanger of the embodiment of the present application is a parallel - type plate heat exchanger, and the flow channels of the first heat exchange channel and the second heat exchange channel are designed as spiral shapes, which can reduce the flow resistance of the first heat exchange medium and the second heat exchange medium, increase the disturbance of the first heat exchange medium and the second heat exchange medium, make the mixing of the first heat exchange medium and the second heat exchange medium uniform, and greatly improve the heat exchange efficiency of the heat exchanger. And the heat exchanger has a small volume, simple processing and assembly processes, low cost, meets the food - grade requirements, and can be applied to water dispensers.

[0148] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0149] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0150] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0151] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0152] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0153] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A heat exchanger, characterized in that, Comprising a heat exchange main body, the heat exchange main body comprising: A first plate provided with a first heat exchange channel; A second plate provided with a second heat exchange channel, and the second plate is arranged alternately with the first plate; and A partition plate clamped between the adjacent first plate and second plate, and a first heat exchange medium in the first heat exchange channel and a second heat exchange medium in the second heat exchange channel are arranged to exchange heat through the partition plate; Wherein, the first plate is provided with a first connecting rib, the first connecting rib is cross-connected with the first heat exchange channel, and along the thickness direction of the first plate, the height of the cross-connected part of the first connecting rib is less than the depth of the first heat exchange channel; The first heat exchange channel penetrates through the first plate along the thickness direction of the first plate; along the thickness direction of the first plate, the height of the first connecting rib is less than the thickness of the first plate.

2. The heat exchanger according to claim 1, wherein, The second plate is provided with a second connecting rib, the second connecting rib is cross-connected with the second heat exchange channel, and along the thickness direction of the second plate, the height of the cross-connected part of the second connecting rib is less than the depth of the second heat exchange channel.

3. The heat exchanger according to claim 2, wherein The second heat exchange channel penetrates through the second plate along the thickness direction of the second plate; Along the thickness direction of the second plate, the height of the second connecting rib is less than the thickness of the second plate.

4. The heat exchanger according to any one of claims 1 to 3, characterized in that, The first heat exchange channel is a first spiral channel, one end of the first connecting rib extends towards the central area of the first spiral channel, and the other end passes through the first spiral channel and extends towards the edge of the first plate.

5. The heat exchanger according to claim 2 or 3, characterized in that, The second heat exchange channel is a second spiral channel, one end of the second connecting rib extends towards the central area of the second spiral channel, and the other end passes through the second spiral channel and extends towards the edge of the second plate.

6. The heat exchanger according to any one of claims 1 to 3, characterized in that, Further comprising a first pressing plate and a second pressing plate, the heat exchange main body is arranged between the first pressing plate and the second pressing plate; The first pressing plate is provided with a first total inlet, a first total outlet, a second total inlet, and a second total outlet; The first plate is further provided with a first inlet, a first outlet, a second inlet, and a second outlet, and both ends of the first heat exchange channel are respectively communicated with the first inlet and the first outlet; The second plate is further provided with a third inlet, a third outlet, a fourth inlet, and a fourth outlet, and both ends of the second heat exchange channel are respectively communicated with the third inlet and the third outlet; The partition plate is provided with a first communication hole, a second communication hole, a third communication hole, and a fourth communication hole; The first inlets of multiple first plates, the fourth inlets of multiple second plates, the first communication hole of the partition plate, and the first total inlet are communicated to form a first liquid inlet passage; The first outlets of multiple first plates, the fourth outlets of multiple second plates, the second communication hole of the partition plate, and the first total outlet are communicated to form a first liquid outlet passage; The second inlets of multiple first plates, the third inlets of multiple second plates, the third communication hole of the partition plate, and the second total inlet are communicated to form a second liquid inlet passage; The second outlets of multiple first plates, the third outlets of multiple second plates, the fourth communication hole of the partition plate, and the second total outlet are communicated to form a second liquid outlet passage.

7. The heat exchanger according to claim 6, wherein, The first heat exchange channel is a first spiral channel. The first inlet and the second outlet are located in the central region of the first spiral channel, and the first outlet and the second inlet are located on the outer side of the first spiral channel; and / or The second heat exchange channel is a second spiral channel. The third outlet and the fourth inlet are located in the central region of the second spiral channel, and the third inlet and the fourth outlet are located on the outer side of the second spiral channel.

8. The heat exchanger according to claim 6, characterized in that, The contour line of the edge of the first plate is symmetrical about the first symmetry axis. The first inlet and the second outlet are arranged symmetrically about the first symmetry axis, and the first outlet and the second inlet are arranged symmetrically about the first symmetry axis; The contour line of the edge of the second plate is symmetrical about the second symmetry axis. The third inlet and the fourth outlet are arranged symmetrically about the second symmetry axis, and the third outlet and the fourth inlet are arranged symmetrically about the second symmetry axis.

9. The heat exchanger according to claim 8, characterized in that, The projection of the second symmetry axis on the plate surface of the first plate coincides with the first symmetry axis, and the first plate and the second plate are the same.

10. The heat exchanger according to claim 6, characterized in that, First sealing grooves surrounding the second inlet are provided on both plate surfaces of the first plate, and first sealing members are installed in the first sealing grooves; Second sealing grooves surrounding the second outlet are provided on both plate surfaces of the first plate, and second sealing members are installed in the second sealing grooves; Third sealing grooves surrounding the fourth inlet are provided on both plate surfaces of the second plate, and third sealing members are installed in the third sealing grooves; Fourth sealing grooves surrounding the fourth outlet are provided on both plate surfaces of the second plate, and fourth sealing members are installed in the fourth sealing grooves.

11. The heat exchanger according to claim 6, characterized in that, Fifth sealing grooves are provided at the edges of both plate surfaces of the first plate. The first heat exchange channel, the first inlet, the first outlet, the second inlet and the second outlet are located inside the annular fifth sealing grooves, and fifth sealing members are installed in the fifth sealing grooves; Sixth sealing grooves are provided at the edges of both plate surfaces of the second plate. The second heat exchange channel, the third inlet, the third outlet, the fourth inlet and the fourth outlet are located inside the annular sixth sealing grooves, and sixth sealing members are installed in the sixth sealing grooves.

12. The heat exchanger according to claim 6, wherein The edges of the first pressing plate protrude beyond the edges of the first plate, the second plate and the partition plate. The edges of the second pressing plate protrude beyond the edges of the first plate, the second plate and the partition plate. The edges of the first pressing plate and the second pressing plate are fixed by fasteners.

13. The heat exchanger according to claim 6, characterized in that, A first limiting groove is provided on the plate surface of the first pressing plate adjacent to the heat exchange body. A second limiting groove is provided on the plate surface of the second pressing plate adjacent to the heat exchange body. Two ends of the heat exchange body extend into the first limiting groove and the second limiting groove respectively.

14. The heat exchanger according to any one of claims 1 to 3, characterized in that The edge of the partition plate is bent to form a limiting rib for limiting the adjacent first plate or the second plate.

15. A water dispenser, characterized in that, A heat exchanger according to any one of claims 1 to 14 is included.

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