Multi-medium heat exchange device and automotive cold and hot box

Abstract

According to the multi-medium heat exchange device and the automotive cold and hot box, at least two heat exchange plate assemblies are arranged, a third medium heat exchange gap is formed between every two adjacent heat exchange plate assemblies, and each heat exchange plate assembly comprises at least one heat exchange plate provided with a first medium cavity and a second medium cavity; the first medium cavity is located in the second medium cavity, the first medium cavity is provided with a first medium inlet and a second medium outlet, the second medium cavity is provided with a second medium inlet and a second medium outlet, the first medium inlets of all the heat exchange plates are communicated, the first medium outlets of all the heat exchange plates are communicated, and the second medium inlets of all the heat exchange plates are communicated. The second medium inlets of all the heat exchange plates are communicated, and the second medium outlets of all the heat exchange plates are communicated. The first medium and the second medium can exchange heat in the heat exchange plate, and the third medium capable of exchanging heat for the vehicle-mounted cold box and the vehicle-mounted hot box can circulate in the heat exchange gap of the third medium, so that the cooling and heating functions of the power battery are ensured, necessary cold sources and heat sources can be provided for the vehicle-mounted cold box and the vehicle-mounted hot box, new functions are expanded for users, and the service life of the vehicle-mounted cold box and the vehicle-mounted hot box is prolonged. And the energy loss of the electric vehicle is reduced.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a multi-medium heat exchange device and a vehicle-mounted hot and cold box. Background Technology

[0002] With the increasing popularity of new energy electric vehicles, energy conservation and rational energy utilization of electric vehicles have received high attention from the industry. Most heat exchange devices on the market are dual-medium heat exchange devices. In addition to ensuring the cooling and heating functions of the electric vehicle's power battery, they also need to expand new functions for users in the current environment and provide necessary cold and heat sources for the vehicle's cold and hot boxes. Utility Model Content

[0003] The purpose of this application is to provide a multi-medium heat exchange device and a vehicle-mounted cold / heat box that can guarantee the cooling and heating functions of the vehicle-mounted power battery and provide the necessary cold and heat sources for the vehicle-mounted cold / heat box.

[0004] The technical solution of this application provides a multi-medium heat exchange device.

[0005] The device includes at least two heat exchange plate assemblies, and a third medium heat exchange gap is formed between adjacent heat exchange plate assemblies;

[0006] The heat exchange plate assembly includes at least one heat exchange plate;

[0007] The heat exchange plate is provided with a first medium cavity and a second medium cavity, the first medium cavity is located in the second medium cavity, the first medium cavity has a first medium inlet and a first medium outlet, and the second medium cavity has a second medium inlet and a second medium outlet;

[0008] The first medium inlets of all the heat exchange plates are connected, the first medium outlets of all the heat exchange plates are connected, the second medium inlets of all the heat exchange plates are connected, and the second medium outlets of all the heat exchange plates are connected.

[0009] Furthermore, the third medium heat exchange gap includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe;

[0010] The first medium input pipe is connected to the first medium inlet of the adjacent heat exchange plate assembly, the first medium output pipe is connected to the first medium outlet of the adjacent heat exchange plate assembly, the second medium input pipe is connected to the second medium inlet of the adjacent heat exchange plate assembly, and the second medium output pipe is connected to the second medium outlet of the adjacent heat exchange plate assembly.

[0011] Furthermore, the heat exchange plate includes an upper cover and a lower cover, which are closed to form the second medium cavity. A coil is provided inside the second medium cavity, and the first medium cavity is formed in the coil.

[0012] Furthermore, the heat exchange plate cover is provided with the first medium inlet, the first medium outlet, the second medium inlet, and the second medium outlet;

[0013] The heat exchange plate is provided with a first inlet pipe and a first outlet pipe on its lower cover, and the two ends of the coil are respectively connected to the first inlet pipe and the first outlet pipe;

[0014] The first inlet pipe is connected to the first medium inlet, and the first outlet pipe is connected to the first medium outlet.

[0015] Furthermore, the lower cover of the heat exchange plate is also provided with a first exchange inlet, a first exchange outlet, a second exchange inlet, and a second exchange outlet;

[0016] The first exchange inlet is connected to the first inlet pipe, and the first exchange outlet is connected to the first outlet pipe;

[0017] The first exchange inlet of the upper heat exchange plate is connected to the first medium inlet of the lower heat exchange plate, the first exchange outlet of the upper heat exchange plate is connected to the first medium outlet of the lower heat exchange plate, the second exchange inlet of the upper heat exchange plate is connected to the second medium inlet of the lower heat exchange plate, and the second exchange outlet of the upper heat exchange plate is connected to the second medium outlet of the lower heat exchange plate.

[0018] A sealing plate is connected below the bottom heat exchange plate, and the sealing plate covers the first exchange inlet, the first exchange outlet, the second exchange inlet, and the second exchange outlet of the bottom heat exchange plate.

[0019] Furthermore, the uppermost heat exchange plate is also covered with an upper cover plate, which has a first medium inlet hole, a first medium outlet hole, a second medium inlet hole, and a second medium outlet hole with different diameters.

[0020] A first transition pipe is connected between the first medium input port and the uppermost first medium inlet; a second transition pipe is connected between the first medium output port and the uppermost first medium outlet; a third transition pipe is connected between the second medium input port and the uppermost second medium inlet; and a fourth transition pipe is connected between the second medium output port and the uppermost second medium outlet.

[0021] The first transition pipe, the second transition pipe, the third transition pipe, and the fourth transition pipe are cylindrical pipes or frustum-shaped pipes.

[0022] Furthermore, the device also includes a housing, in which all the heat exchange plate assemblies are housed;

[0023] The housing includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe;

[0024] The first medium inlet pipe is connected to the first medium input hole, the first medium outlet pipe is connected to the first medium output hole, the second medium inlet pipe is connected to the second medium input hole, and the second medium outlet pipe is connected to the second medium output hole.

[0025] Furthermore, the housing also includes a third medium inlet and a third medium outlet, which are located on both sides of the third medium heat exchange gap, respectively.

[0026] Furthermore, the housing also includes a third medium exchange port, which is located on one side of the third medium heat exchange gap.

[0027] Furthermore, the housing is also equipped with a drive unit for driving the third medium to flow along the heat exchange gap of the third medium.

[0028] The technical solution of this application also provides a vehicle hot and cold box, which includes a hot and cold box body and a multi-medium heat exchange device as described above, wherein the hot and cold box body houses the multi-medium heat exchange device.

[0029] The above technical solution has the following beneficial effects:

[0030] This application discloses a multi-medium heat exchange device and an automotive cold / hot box. By assembling at least two heat exchange plate assemblies, a third medium heat exchange gap is formed between adjacent heat exchange plate assemblies. Each heat exchange plate assembly includes at least one heat exchange plate with a first medium cavity and a second medium cavity. The first medium cavity is located within the second medium cavity. The first medium cavity has a first medium inlet and a second medium outlet, and the second medium cavity has a second medium inlet and a second medium outlet. The first medium inlets of all heat exchange plates are interconnected, as are the first medium outlets, second medium inlets, and second medium outlets of all heat exchange plates. The first and second media can exchange heat inside the heat exchange plates, while the third medium, which provides heat for the automotive cold / hot box, flows through the third medium heat exchange gap. This ensures not only the cooling and heating functions of the power battery but also provides the necessary cold and heat sources for the automotive cold / hot box, expanding the user's capabilities and reducing the energy consumption of electric vehicles. Attached Figure Description

[0031] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a multi-medium heat exchanger in one embodiment of this application;

[0033] Figure 2 This is a structural example diagram of the heat exchange plate cover in one embodiment of this application;

[0034] Figure 3 This is a structural example diagram of the heat exchanger plate lower cover in one embodiment of this application;

[0035] Figure 4 This is a structural example diagram of the upper cover plate in one embodiment of this application.

[0036] Reference table for attached figures:

[0037] Heat exchanger assembly 1:

[0038] Heat exchange plate 11: First medium cavity 160, Second medium cavity 170

[0039] Heat exchanger plate cover 110: first medium inlet 120, first medium outlet 130, second medium inlet 140, second medium outlet 150;

[0040] Heat exchanger plate lower cover 111: first inlet pipe 1111, first outlet pipe 1112, first exchange inlet 1113, first exchange outlet 1114, second exchange inlet 1115, second exchange outlet 1116, sealing plate 1117;

[0041] Third medium heat exchange gap 2: First medium inlet pipe 21, first medium outlet pipe 22, second medium inlet pipe 23, second medium outlet pipe 24;

[0042] Upper cover plate 3: First medium input hole 31, first medium output hole 32, second medium input hole 33, second medium output hole 34, first transition pipe 35, second transition pipe 36, third transition pipe 37, fourth transition pipe 38. Detailed Implementation

[0043] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0044] It is readily understood that, based on the technical solution of this application, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of the application.

[0045] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meanings of the above in this application according to the specific circumstances.

[0047] Multi-medium heat exchanger:

[0048] The multi-medium heat exchange device in the embodiments of this application, such as Figure 1-3 As shown, the device includes at least two heat exchange plate assemblies 1, and a third medium heat exchange gap 2 is formed between adjacent heat exchange plate assemblies 1.

[0049] The heat exchanger assembly 1 includes at least one heat exchanger plate 11;

[0050] The heat exchange plate 11 is provided with a first medium cavity 160 and a second medium cavity 170. The first medium cavity 160 is located in the second medium cavity 170. The first medium cavity 160 has a first medium inlet 120 and a first medium outlet 130. The second medium cavity 170 has a second medium inlet 140 and a second medium outlet 150.

[0051] The first medium inlets 120 of all heat exchange plates 11 are connected, the first medium outlets 130 of all heat exchange plates 11 are connected, the second medium inlets 140 of all heat exchange plates 11 are connected, and the second medium outlets 150 of all heat exchange plates 11 are connected.

[0052] In this embodiment, there is a third medium heat exchange gap 2 between adjacent heat exchange plate assemblies 1, through which the third medium can flow and exchange heat; the heat exchange plate assembly 1 includes at least one heat exchange plate 11, in which a first medium cavity 160 is enclosed by a second medium cavity 170, wherein the first medium cavity 160 has a first medium inlet 120 and a first medium outlet 130, and the second medium cavity 170 has a second medium inlet 140 and a second medium outlet 150; in all heat exchange plates 11, the first medium inlets 120 are connected, the first medium outlets 130 are connected, the second medium inlets 140 are connected, and the second medium outlets 150 are connected.

[0053] The first medium can flow in the first medium cavity 160 and to the first medium inlet 120 in each of the other heat exchange plates 11, and then out from the first medium outlet 130; the second medium can flow in the second medium cavity 170, wherein the second medium surrounds the first medium cavity 160, which can ensure the heat exchange efficiency between the first medium and the second medium, and the second medium flows to the second medium inlet 140 in the other heat exchange plates 11, and then out from the second medium outlet 150, thereby realizing the heat exchange between the first medium and the second medium.

[0054] In another embodiment, the third medium heat exchange gap 2 includes a first medium inlet pipe 21, a first medium outlet pipe 22, a second medium inlet pipe 23, and a second medium outlet pipe 24;

[0055] The first medium input pipe 21 is connected to the first medium inlet 120 of the adjacent heat exchanger assembly 1, the first medium output pipe 22 is connected to the first medium outlet 130 of the adjacent heat exchanger assembly 1, the second medium input pipe 23 is connected to the second medium inlet 140 of the adjacent heat exchanger assembly 1, and the second medium output pipe 24 is connected to the second medium outlet 150 of the adjacent heat exchanger assembly 1.

[0056] like Figure 1 As shown, in this embodiment, the third medium heat exchange gap 2 formed between adjacent heat exchange plate assemblies 1 includes a first medium input pipe 21, a first medium output pipe 22, a second medium input pipe 23, and a second medium output pipe 24. The first medium input pipe 21 and the first medium output pipe 22 are respectively connected to the first medium inlet 120 and the first medium outlet 130 of the adjacent heat exchange plate assemblies 1, and the second medium input pipe 23 and the second medium output pipe 24 are respectively connected to the second medium inlet 140 and the second medium outlet 150 of the adjacent heat exchange plate assemblies 1.

[0057] The first medium can flow between adjacent heat exchange plate assemblies 1 through the first medium inlet pipe 21 and the first medium outlet pipe 22, the second medium can flow between adjacent heat exchange plate assemblies 1 through the second medium inlet pipe 23 and the second medium outlet pipe 24, and the third medium flows through the third medium heat exchange gap 2, thereby realizing multi-medium heat exchange.

[0058] like Figure 2 , 3 As shown, in another embodiment, the heat exchange plate 11 includes an upper cover 110 and a lower cover 111. The upper cover 110 and the lower cover 111 are closed to form a second medium cavity 170. A coil is provided in the second medium cavity 170, and a first medium cavity 160 is formed in the coil.

[0059] In this embodiment, the upper cover 110 and the lower cover 111 of the heat exchange plate are closed to form a second medium cavity 170. The second medium can flow in the second medium cavity 170 through the second medium inlet 140 or flow to the adjacent heat exchange plate 11. The first medium can flow in the coil through the first medium inlet 120. The coil is wrapped by the second medium cavity 170, so that the first medium and the second medium can exchange heat fully in the heat exchange plate 11, thereby improving the heat exchange efficiency.

[0060] like Figure 2 , 3 As shown, in another embodiment, the heat exchange plate cover 110 is provided with a first medium inlet 120, a first medium outlet 130, a second medium inlet 140, and a second medium outlet 150.

[0061] The heat exchange plate lower cover 111 is provided with a first inlet pipe 1111 and a first outlet pipe 1112, and the two ends of the coil are respectively connected to the first inlet pipe 1111 and the first outlet pipe 1112;

[0062] The first inlet pipe 1111 is connected to the first medium inlet 120, and the first outlet pipe 1112 is connected to the first medium outlet 130.

[0063] In this embodiment, the first medium inlet 120, the first medium outlet 130, the second medium inlet 140, and the second medium outlet 150 are all located on the heat exchange plate cover 110. The heat exchange plate cover 111 is provided with two pipes, namely the first inlet pipe 1111 and the first outlet pipe 1112. The two ends of the coil are respectively connected to the two pipes. The first inlet pipe 1111 is connected to the first medium inlet 120, and the first outlet pipe 1112 is connected to the first medium outlet 130.

[0064] The first medium entering the heat exchange plate 11 flows through the first medium inlet 120 into the first inlet pipe 1111, and exchanges heat with the second medium in the second medium cavity 170 through the coil, then flows through the first outlet pipe 1112, and flows out of the heat exchange plate 11 from the first medium outlet 130.

[0065] The second medium entering the heat exchange plate 11 flows through the second medium inlet 140 into the second medium cavity 170, where it exchanges heat with the first medium in the first medium cavity 160, and then flows out of the heat exchange plate 11 through the second medium outlet 150.

[0066] like Figure 2 , 3 As shown, in another preferred embodiment, the heat exchange plate lower cover 111 is further provided with a first exchange inlet 1113, a first exchange outlet 1114, a second exchange inlet 1115, and a second exchange outlet 1116.

[0067] The first exchange inlet 1113 is connected to the first inlet pipe 1111, and the first exchange outlet 1114 is connected to the first outlet pipe 1112;

[0068] The first exchange inlet 1113 of the upper heat exchange plate 11 is connected to the first medium inlet 120 of the lower heat exchange plate 11, the first exchange outlet 1114 of the upper heat exchange plate 11 is connected to the first medium outlet 130 of the lower heat exchange plate 11, the second exchange inlet 1115 of the upper heat exchange plate 11 is connected to the second medium inlet 140 of the lower heat exchange plate 11, and the second exchange outlet 1116 of the upper heat exchange plate 11 is connected to the second medium outlet 150 of the lower heat exchange plate 11.

[0069] A sealing plate 3 is connected below the bottom heat exchange plate 11. The sealing plate 3 covers the first exchange inlet 1113, the first exchange outlet 1114, the second exchange inlet 1115, and the second exchange outlet 1116 of the bottom heat exchange plate 11.

[0070] In a preferred embodiment, the first switching inlet 1113 is located directly below the first medium inlet 120, the first switching outlet 1114 is located directly below the first medium outlet 130, the second switching inlet 1115 is located directly below the second medium inlet 140, and the second switching outlet 1116 is located directly below the second medium outlet 150.

[0071] Between different heat exchanger assemblies 1, the first exchange inlet 1113 of the lowest layer of the upper heat exchanger assembly 1 is connected to the first medium inlet 120 of the highest layer of the lower heat exchanger assembly 1 through the aforementioned first medium input pipe 21; the first exchange outlet 1114 of the lowest layer of the upper heat exchanger assembly 1 is connected to the first medium outlet 130 of the highest layer of the lower heat exchanger assembly 1 through the aforementioned first medium output pipe 22; the second exchange inlet 1115 of the lowest layer of the upper heat exchanger assembly 1 is connected to the second medium inlet 140 of the highest layer of the lower heat exchanger assembly 1 through the aforementioned second medium input pipe 23; and the second exchange outlet 1116 of the lowest layer of the upper heat exchanger assembly 1 is connected to the second medium outlet 150 of the highest layer of the lower heat exchanger assembly 1 through the aforementioned second medium output pipe 24.

[0072] In the same heat exchange plate assembly 1, the first exchange inlet 1113 in the upper heat exchange plate 11 is connected to the first medium inlet 120 in the lower heat exchange plate 11, the first exchange outlet 1114 in the upper heat exchange plate 11 is connected to the first medium outlet 130 in the lower heat exchange plate 11, the second exchange inlet 1115 in the upper heat exchange plate 11 is connected to the second medium inlet 140 in the lower heat exchange plate 11, and the second exchange outlet 1116 in the upper heat exchange plate 11 is connected to the second medium outlet 150 in the lower heat exchange plate 11.

[0073] A sealing plate 3 is provided below the bottom heat exchange plate 11 to cover the first exchange inlet 1113, the first exchange outlet 1114, the second exchange inlet 1115, and the second exchange outlet 1116 of the bottom heat exchange plate 11, so as to prevent the first medium, the second medium, and the third medium from mixing.

[0074] like Figure 4 As shown, in one embodiment, the uppermost heat exchange plate 11 is also covered by an upper cover plate 3, which has a first medium inlet hole 31, a first medium outlet hole 32, a second medium inlet hole 33, and a second medium outlet hole 34 with different apertures.

[0075] A first transition pipe 35 is connected between the first medium inlet 31 and the uppermost first medium inlet 120; a second transition pipe 36 is connected between the first medium outlet 32 ​​and the uppermost first medium outlet 130; a third transition pipe 37 is connected between the second medium inlet 33 and the uppermost second medium inlet 140; and a fourth transition pipe 38 is connected between the second medium outlet 34 and the uppermost second medium outlet 150.

[0076] The first transition pipe 35, the second transition pipe 36, the third transition pipe 37, and the fourth transition pipe 38 are cylindrical pipes or frustum-shaped pipes.

[0077] In this embodiment, an upper cover plate 3 covers the uppermost heat exchange plate 11. The upper cover plate 3 has four holes of different diameters, which are used to transport the first medium and the second medium, respectively. The four holes of the upper cover plate are also connected to four cylindrical pipes or frustum-shaped pipes in the uppermost heat exchange plate cover 110, namely the first medium inlet 120, the first medium outlet 130, the second medium inlet 140, and the second medium outlet 150.

[0078] The upper cover plate 3 has four holes of different diameters, which helps to prevent errors during installation and connection. The four cylindrical or frustum-shaped pipes can prevent leakage of the first and second media.

[0079] In one embodiment, the device further includes a housing, in which all heat exchange plate assemblies 1 are housed;

[0080] The housing includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe;

[0081] The first medium inlet pipe is connected to the first medium input hole 31, the first medium outlet pipe is connected to the first medium output hole 32, the second medium inlet pipe is connected to the second medium input hole 33, and the second medium outlet pipe is connected to the second medium output hole 34.

[0082] In this embodiment, a housing is also included, in which all heat exchange plate assemblies 1 are disposed. The housing includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe, which are used to transport the first medium and the second medium, respectively, and are connected to four holes on the upper cover plate. The first medium and the second medium can flow into the housing from the outside of the housing, or they can circulate internally within the housing.

[0083] In one embodiment, the housing further includes a third medium inlet and a third medium outlet, which are located on both sides of the third medium heat exchange gap 2.

[0084] In this embodiment, a third medium inlet and a third medium outlet are also provided on the housing, located on both sides of the third medium heat exchange gap 2, respectively. The third medium can flow through the third medium inlet through the third medium heat exchange gap 2 and then flow out of the housing from the third medium outlet, thereby transporting the heat-exchanged third medium out of the housing.

[0085] In another embodiment, the housing further includes a third medium exchange port, which is located on one side of the third medium heat exchange gap 2.

[0086] In this embodiment, the housing is provided with only one third medium exchange port located on one side of the third medium heat exchange gap 2. The third medium enters the housing through the third medium exchange port and then flows through the third medium heat exchange gap 2. After the first heat exchange, it flows through the third medium heat exchange gap 2 again. After the second heat exchange, it flows out from the third medium exchange port, thus realizing two heat exchanges and making the heat exchange efficiency of the third medium higher.

[0087] In another embodiment, the enclosure does not have a third medium inlet, a third medium outlet, or a third medium exchange port. The third medium continuously circulates within the enclosure to cool / heat the enclosure and the environment outside the enclosure.

[0088] In one embodiment, the housing is also equipped with a drive unit for driving the third medium to flow along the third medium heat exchange gap 2.

[0089] When the third medium is gas, the driving component can be a fan; when the third medium is liquid, the driving component can be a propeller.

[0090] When the housing is provided with a third medium inlet and a third medium outlet for the flow of the third medium, the driving component can be installed in either the third medium inlet or the third medium outlet to cause the third medium to flow through the third medium heat exchange gap 2.

[0091] When the housing has only one third medium exchange port for the third medium to flow through, the drive unit is installed in the third medium exchange port, and the direction of the fan blade rotation can be adjusted as needed so that the third medium can flow out again after passing through the third medium heat exchange gap 2 for secondary heat exchange.

[0092] When the housing does not have a third medium inlet, third medium outlet, and third medium exchange port for the third medium to flow through, the third medium circulates internally within the housing. A drive component with variable direction can be installed at any position within the housing, allowing the third medium to exchange heat more quickly within the housing and improving the heat exchange efficiency of the third medium.

[0093] Automotive hot and cold boxes:

[0094] The technical solution of this application also provides a vehicle hot and cold box, which includes a hot and cold box body and the aforementioned multi-medium heat exchange device, wherein the hot and cold box body has the multi-medium heat exchange device built into it.

[0095] This application embodiment incorporates the multi-media heat exchange device described in the preceding embodiments, providing the necessary cold and heat sources for the vehicle's hot and cold boxes, expanding new functions for users, and also reducing the energy consumption of electric vehicles.

[0096] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0097] The above description only outlines the principles and preferred embodiments of this application. It should be noted that for those skilled in the art, implementation methods obtained by appropriately combining the technical solutions disclosed in different embodiments are also included within the technical scope of this invention. Based on the principles of this application, several other modifications can be made, which should also be considered within the protection scope of this application. As needed, the above technical solutions can be combined to achieve the best technical effect.

[0098] The above description is merely the principle and preferred embodiment of this application. It should be noted that for those skilled in the art, implementation methods obtained by appropriately combining the technical solutions disclosed in different embodiments are also included within the technical scope of this invention. Based on the principle of this application, several other modifications can also be made, which should also be considered within the protection scope of this application.

Claims

1. A multi-medium heat exchanger, characterized in that, The device includes at least two heat exchange plate assemblies, and a third medium heat exchange gap is formed between adjacent heat exchange plate assemblies; The heat exchange plate assembly includes at least one heat exchange plate; The heat exchange plate is provided with a first medium cavity and a second medium cavity, the first medium cavity is located in the second medium cavity, the first medium cavity has a first medium inlet and a first medium outlet, and the second medium cavity has a second medium inlet and a second medium outlet; The first medium inlets of all the heat exchange plates are connected, the first medium outlets of all the heat exchange plates are connected, the second medium inlets of all the heat exchange plates are connected, and the second medium outlets of all the heat exchange plates are connected.

2. The multi-medium heat exchanger according to claim 1, characterized in that, The third medium heat exchange gap includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe; The first medium input pipe is connected to the first medium inlet of the adjacent heat exchange plate assembly, the first medium output pipe is connected to the first medium outlet of the adjacent heat exchange plate assembly, the second medium input pipe is connected to the second medium inlet of the adjacent heat exchange plate assembly, and the second medium output pipe is connected to the second medium outlet of the adjacent heat exchange plate assembly.

3. The multi-medium heat exchanger according to claim 1, characterized in that, The heat exchange plate includes an upper cover and a lower cover. The upper cover and the lower cover are closed to form a second medium cavity. A coil is provided inside the second medium cavity, and the first medium cavity is formed in the coil.

4. The multi-medium heat exchanger according to claim 3, characterized in that, The heat exchange plate cover is provided with a first medium inlet, a first medium outlet, a second medium inlet, and a second medium outlet; The heat exchange plate is provided with a first inlet pipe and a first outlet pipe on its lower cover, and the two ends of the coil are respectively connected to the first inlet pipe and the first outlet pipe; The first inlet pipe is connected to the first medium inlet, and the first outlet pipe is connected to the first medium outlet.

5. A multi-medium heat exchanger according to claim 4, characterized in that, The lower cover of the heat exchange plate is also provided with a first exchange inlet, a first exchange outlet, a second exchange inlet, and a second exchange outlet; The first exchange inlet is connected to the first inlet pipe, and the first exchange outlet is connected to the first outlet pipe; The first exchange inlet of the upper heat exchange plate is connected to the first medium inlet of the lower heat exchange plate, the first exchange outlet of the upper heat exchange plate is connected to the first medium outlet of the lower heat exchange plate, the second exchange inlet of the upper heat exchange plate is connected to the second medium inlet of the lower heat exchange plate, and the second exchange outlet of the upper heat exchange plate is connected to the second medium outlet of the lower heat exchange plate. A sealing plate is connected below the bottom heat exchange plate, and the sealing plate covers the first exchange inlet, the first exchange outlet, the second exchange inlet, and the second exchange outlet of the bottom heat exchange plate.

6. A multi-medium heat exchanger according to claim 1, characterized in that, The uppermost heat exchange plate is also covered with an upper cover plate, which has a first medium inlet hole, a first medium outlet hole, a second medium inlet hole, and a second medium outlet hole with different diameters. A first transition pipe is connected between the first medium input port and the uppermost first medium inlet; a second transition pipe is connected between the first medium output port and the uppermost first medium outlet; a third transition pipe is connected between the second medium input port and the uppermost second medium inlet; and a fourth transition pipe is connected between the second medium output port and the uppermost second medium outlet. The first transition pipe, the second transition pipe, the third transition pipe, and the fourth transition pipe are cylindrical pipes or frustum-shaped pipes.

7. A multi-medium heat exchanger according to claim 6, characterized in that, The device also includes a housing, in which all the heat exchange plate assemblies are housed; The housing includes a first medium inlet pipe, a first medium outlet pipe, a second medium inlet pipe, and a second medium outlet pipe; The first medium inlet pipe is connected to the first medium input hole, the first medium outlet pipe is connected to the first medium output hole, the second medium inlet pipe is connected to the second medium input hole, and the second medium outlet pipe is connected to the second medium output hole.

8. A multi-medium heat exchanger according to claim 7, characterized in that, The housing also includes a third medium inlet and a third medium outlet, which are located on opposite sides of the third medium heat exchange gap.

9. A multi-medium heat exchanger according to claim 7, characterized in that, The enclosure also includes a third medium exchange port, which is located on one side of the third medium heat exchange gap.

10. A multi-medium heat exchanger according to any one of claims 7-9, characterized in that, The housing is also equipped with a drive unit for driving the third medium to flow along the heat exchange gap of the third medium.

11. A vehicle-mounted hot / cold box, characterized in that, The invention comprises a hot and cold box body and a multi-medium heat exchange device as described in any one of claims 1-10, wherein the hot and cold box body houses the multi-medium heat exchange device.

Images