CN212936234U

CN212936234U - High-pressure water heater device in electric vehicle

Info

Publication number: CN212936234U
Application number: CN202021565428.8U
Authority: CN
Inventors: 方宏生; 郑大存
Original assignee: Shanghai Fengtian Electronics Co ltd
Current assignee: Shanghai Fengtian Electronics Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-09
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a high pressure water heater device in electric vehicle, including heating element, the heating element centre gripping is at last heat dissipation casing under and between the heat dissipation casing, it is connected with the control chamber board to go up the heat dissipation casing, the control chamber board will go up heat dissipation casing inner chamber and fall control chamber and lower fluid chamber, lower fluid chamber with heat dissipation casing inner chamber intercommunication down, be equipped with control circuit board on the control chamber board, control circuit board connects IGBT, IGBT's cooling surface with control chamber board contact, control circuit board locates with IGBT go up the control chamber, go up the heat dissipation casing and link together through dismantling the connecting piece with lower heat dissipation casing. The utility model discloses a shell material and structural strength require lowly, and manufacturing cost is lower, can effective control part provide high-efficient heat dissipation to can effectively improve heating efficiency.

Description

High-pressure water heater device in electric vehicle

Technical Field

The utility model relates to an auto-parts technical field indicates an interior high pressure water heater device for electric vehicle especially.

Background

In the prior art, there is a need in electric vehicles to use an electric heating device which uses heating elements having self-regulating characteristics which prevent these heating elements from overheating, since they exhibit a greater resistance when the heating is increased and thus allow a smaller amount of current to pass.

In order to realize the bearing and electric conduction contact with a plurality of heating elements, the electric heating device can manufacture an electrode package in the production process, and the main structure of the electrode package is that a flat electrode plate is covered on an insulating layer. Clamping several heating elements by two electrode packs is a conceivable implementation; however, since the heat generated by the heating element needs to be conducted out through close contact with the heat dissipation housing, the heat dissipation housing and the electrode package and the heating element inside the electrode package need to be tightly pressed.

When the electrode plate is a large flat surface, since a certain thickness deviation exists among the plurality of heating elements and the thickness of the heating elements can hardly be compressed, in order to realize that each heating element can be tightly attached to the electrode plate, the electrode plate can be possibly coated with thousands to tens of thousands of newtons of force applied to the heat dissipation shell. The heat dissipation shell provides such a large force for supporting, which has high requirements on the material strength and the thickness of the heat dissipation shell, the production and manufacturing cost of the corresponding heating device is also very high, and meanwhile, the electrode package for clamping the heating element is easy to change in the production process, difficult to assemble, low in assembly qualification rate and low in production efficiency.

However, other types of electric heating devices (high-pressure water heaters) adopt a plug-in package type design, and have the problems of difficult assembly, high production cost, defective product repair and the like.

Therefore, the present inventors have made extensive studies on how to design a high-pressure water heater apparatus in an electric vehicle, which can solve the above-described problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure water heater device in electric vehicle, its shell material and structural strength require lowly, and manufacturing cost is lower, can effective control part provide high-efficient heat dissipation to can effectively improve heating efficiency.

In order to achieve the above purpose, the technical solution of the utility model is that: the utility model provides a high pressure water heater device in electric vehicle, includes heating element, the heating element centre gripping is at last heat dissipation casing under and between the heat dissipation casing, it is connected with the control chamber board to go up the heat dissipation casing, the control chamber board will go up heat dissipation casing inner chamber and divide into control chamber and lower fluid cavity, lower fluid cavity with heat dissipation casing inner chamber intercommunication down, be equipped with control circuit board on the control chamber board, control circuit board connects the IGBT, the cooling surface of IGBT with the contact of control chamber board, control circuit board and IGBT locate go up the control chamber, it links together through dismantling the connecting piece with lower heat dissipation casing to go up the heat dissipation casing.

The utility model discloses high pressure water heater device in electric vehicle, wherein heating element's upper and lower face is equipped with the heat conduction insulating film respectively, it is two with lower heat dissipation casing centre gripping to go up the heat dissipation casing on the heat conduction insulating film.

The utility model discloses high pressure water heater device in electric vehicle, wherein go up the heat dissipation casing and reach down on the heat dissipation casing with the surface of heating element contact is equipped with a plurality of installation regions respectively, heating element places in a plurality of in the installation region, adjacent connect through convex conductor between the installation region.

The utility model discloses high pressure water heater device in electric vehicle, wherein go up the heat dissipation casing with be equipped with the sealing washer down between the heat dissipation casing.

The utility model discloses high pressure water heater device in electric vehicle, wherein it includes heating panel and upper cover plate to go up the heat dissipation casing, heating element's upper surface paste in go up the lower surface of heating panel, the control chamber board is located go up the heating panel with between the upper cover plate, go up and link together through dismantling the connecting piece between heating panel, control chamber board and the upper cover plate, go up the heating panel with form between the control chamber board lower fluid chamber, the control chamber board with form between the upper cover plate go up the control chamber, the upper cover plate with be equipped with the sealing washer between the upper heating panel.

The utility model discloses high pressure water heater device in electric vehicle, wherein the upper surface of going up the heating panel is equipped with first fluid flow channel.

The utility model discloses high pressure water heater unit in electric vehicle, wherein the side of going up the heating panel is equipped with inlet and liquid outlet, inlet and liquid outlet respectively with go up the cooling shell inner chamber intercommunication.

The utility model discloses high pressure water heater device in electric vehicle, wherein the position that is close to the outer fringe on the last heating panel is equipped with a plurality of first mounting holes that link up upper and lower extreme along the circumference interval, the position that is close to the outer fringe on the control chamber board is equipped with a plurality of second mounting holes that link up upper and lower extreme along the circumference interval, the position that is close to the outer fringe on the upper cover plate is equipped with a plurality of third mounting holes that link up upper and lower extreme along the circumference interval, and is a plurality of first mounting hole, a plurality of second mounting hole and a plurality of third mounting hole corresponds the setting from top to bottom, it is a plurality of to go up heating panel, control chamber board and upper cover plate can dismantle the connecting piece and pass a plurality of first mounting hole, a plurality of second mounting hole and a plurality of third mounting hole makes the three link together.

The utility model discloses high pressure water heater device in electric vehicle, wherein be equipped with at least one positioning mechanism between the looks proximal surface of upper cover plate, control chamber board and last heating panel, through positioning mechanism can be convenient for go up heating panel, control chamber board and upper cover plate and pass a plurality of first mounting holes, a plurality of second mounting holes and a plurality of third mounting hole through a plurality of detachable connections and make the three link together.

The utility model discloses high pressure water heater device in electric vehicle, wherein the side of upper cover plate upwards extends has first mount pad, first mount pad can be dismantled with high pressure water heater's low pressure connector and be connected, the side of going up the heating panel with the position downwardly extending that first mount pad position corresponds has the second mount pad, the second mount pad can be dismantled with high pressure water heater's high pressure connector and be connected, low pressure connector, high pressure connector all with the control circuit board electricity is connected.

The utility model discloses high pressure water heater device in electric vehicle, wherein the casing that looses down includes heating panel and bottom plate, heating element's lower surface paste in the upper surface of heating panel down, lower heating panel with pass through between the bottom plate can dismantle the connecting piece and link together, the upper surface of bottom plate is equipped with the second fluid runner, lower heating panel side with one side that inlet, liquid outlet position correspond is outwards outstanding to have two otic placodes, two be equipped with the through-hole on the otic placode respectively, two the through-hole respectively with inlet, liquid outlet intercommunication, two the through-hole with the second fluid runner communicates with each other, lower heating panel with be equipped with the sealing washer between the bottom plate.

The utility model discloses high pressure water heater unit in electric vehicle, wherein the position that is close to the outer fringe on the heating panel down is equipped with a plurality of fourth mounting holes that link up upper and lower extreme along the circumference interval, the position that is close to the outer fringe on the bottom plate is equipped with a plurality of fifth mounting holes that link up upper and lower extreme, and is a plurality of along the circumference interval fourth mounting hole and a plurality of the fifth mounting hole corresponds the setting from top to bottom, the heating panel passes through a plurality ofly with the bottom plate can dismantle the connecting piece and pass a plurality ofly fourth mounting hole and a plurality of the fifth mounting hole makes the two link together.

The utility model discloses high pressure water heater device in electric vehicle, wherein be equipped with at least one positioning mechanism down between heating panel and the bottom plate cover, through positioning mechanism can be convenient for down heating panel and bottom plate cover pass a plurality of fourth mounting holes and make the two link together through a plurality of connecting pieces of dismantling.

After the scheme is adopted, the utility model discloses high pressure water heater device has following beneficial effect in the electric vehicle:

1. the heating element is clamped between the upper radiating shell and the lower radiating shell, and the upper surface and the lower surface of the heating element are attached with the heat-conducting insulating films, so that the heat-conducting efficiency and the insulating property of the heating element are improved; the heating element is assembled with the upper heat dissipation plate, the control cavity plate, the upper cover plate, the lower heat dissipation plate and the plate blocks on different layers of the bottom cover plate in a superposition mode, so that the process is simple and convenient, and the production efficiency is high;

2. the surfaces of the upper heat dissipation plate and the lower heat dissipation plate, which are in contact with the heating element, are arranged into a plurality of mounting areas, so that the manufacturing control is facilitated, the adjacent mounting areas are connected through arc-shaped conductors, the relevance between the mounting areas is reduced while the current is conducted, each mounting area becomes a relative individual, when the upper heat dissipation shell and the lower heat dissipation shell are pressed on the heating element, the heating element can be tightly pressed as long as the shrinkage deformation force of the heat-conducting insulating film is overcome, the force required for overcoming the shape deformation of the electrode plate is greatly reduced, the requirements on the material and the structural strength of the upper heat dissipation shell and the lower heat dissipation shell are reduced, and the manufacturing cost of the upper heat dissipation shell and the lower heat dissipation shell is reduced;

3. the IGBT heat dissipation surface of the control circuit board is designed to be attached to the control cavity board, and fluid in the first fluid flow channel between the control cavity board and the upper heat dissipation board is used for dissipating heat for the IGBT, so that damage to the IGBT caused by overheating can be effectively prevented, and high reliability of a product is improved.

Drawings

Fig. 1 is a schematic perspective exploded view of a high pressure water heater device in an electric vehicle according to the present invention;

fig. 2 is a schematic perspective view of the high pressure water heater device in the electric vehicle according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the utility model discloses a three-dimensional decomposition structure schematic diagram, three-dimensional structure schematic diagram of high pressure water heater device in electric vehicle, including heating element 1 of rectangle, the upper and lower face of heating element 1 is pasted respectively and is equipped with the heat conduction insulating film, and heating element 1 presss from both sides between heat dissipation casing 3 and the rectangle casing 4 that dispels the heat on the rectangle. Go up heat dissipation casing 3 and heat dissipation casing 4 down and link together through dismantling the connecting piece, heating element 1 centre gripping is in last heat dissipation casing 3 and the holding intracavity that heat dissipation casing 4 down connected and constitute. The upper heat dissipation housing 3 is connected to a control chamber plate 5, and the control chamber plate 5 divides the inner chamber of the upper heat dissipation housing 3 into an upper control chamber and a lower flow chamber.

The upper heat dissipation shell 3 comprises an upper heat dissipation plate 8 and an upper cover plate 9 located above the upper heat dissipation plate 8, a first fluid flow channel 10 is arranged on the upper surface of the upper heat dissipation plate 8, the first fluid flow channel 10 in the embodiment adopts a double-flow-channel fin type structure, and the upper surface of the heating element 1 is tightly attached to the lower surface of the upper heat dissipation plate 8. The control cavity plate 5 is arranged between the upper heat dissipation plate 8 and the upper cover plate 9, the upper heat dissipation plate 8, the control cavity plate 5 and the upper cover plate 9 are connected together through a detachable connecting piece, and the detachable connecting piece of the embodiment adopts a screw 11. A plurality of first mounting holes 12 which penetrate through the upper end and the lower end are formed in the position, close to the outer edge, of the upper heat dissipation plate 8 at intervals along the circumferential direction, a plurality of second mounting holes 13 which penetrate through the upper end and the lower end are formed in the position, close to the outer edge, of the control cavity plate 5 at intervals along the circumferential direction, a plurality of third mounting holes 14 which penetrate through the upper end and the lower end are formed in the position, close to the outer edge, of the upper cover plate 9 at intervals along the circumferential direction, and the plurality of first mounting holes 12, the plurality of second mounting holes 13 and the plurality of third mounting holes 14 are. At least one positioning structure is arranged on the upper surface and the lower surface between the upper cover plate 9, the control cavity plate 5 and the upper heat dissipation plate 8, the positioning structure is a first positioning column 15 and a first positioning hole 16, and the positioning structure is used for positioning the upper cover plate 9, the control cavity plate 5 and the upper heat dissipation plate 8 up and down. The upper heat dissipation plate 8, the control cavity plate 5 and the upper cover plate 9 are conveniently connected together by a plurality of screws 11 penetrating through a plurality of first mounting holes 12, a plurality of second mounting holes 13 and a plurality of third mounting holes 14, and the screws 11 penetrate through the lower heat dissipation shell 4, so that the upper heat dissipation shell 3 is detachably connected with the lower heat dissipation shell 4. A lower fluid cavity is formed between the upper heat dissipation plate 8 and the control cavity plate 5, the lower fluid cavity is communicated with the inner cavity of the lower heat dissipation shell 4, an upper control cavity is formed between the control cavity plate 5 and the upper cover plate 9, and first sealing rings 17 are respectively arranged between the upper heat dissipation plate 8 and the control cavity plate 5 and between the control cavity plate 5 and the upper cover plate 9.

The front side surface of the upper heat dissipation plate 8 is provided with a liquid inlet 18 and a liquid outlet 19, and the liquid inlet 18 and the liquid outlet 19 are respectively communicated with the inner cavity of the upper heat dissipation shell 3.

The control cavity plate 5 is provided with a control circuit board 20, the control circuit board 20 is welded with an IGBT21, the heat dissipation surface of the IGBT21 is in contact with the control cavity plate 5, and the control circuit board 20 and the IGBT21 are arranged in the upper control cavity.

The front side of the upper cover plate 9 extends upwards to form a vertical first mounting seat 35, the first mounting seat 35 is detachably connected with a low-pressure connector 36 of the high-pressure water heater through screws, a vertical second mounting seat 37 extends downwards from the front side of the upper heat dissipation plate 8 and the position corresponding to the first mounting seat 35, the second mounting seat 37 is detachably connected with a high-pressure connector 38 of the high-pressure water heater through screws, and the low-pressure connector 36 and the high-pressure connector 38 are both electrically connected with the control circuit board 20.

The lower heat dissipation shell 4 comprises a lower heat dissipation plate 22 and a bottom cover plate 23, the lower surface of the heating element 1 is tightly attached to the upper surface of the lower heat dissipation plate 22, the lower heat dissipation plate 22 is connected with the bottom cover plate 23 through a detachable connecting piece, a plurality of fourth mounting holes 24 penetrating through the upper end and the lower end are formed in the position, close to the outer edge, of the lower heat dissipation plate 22 at intervals along the circumferential direction, a plurality of fifth mounting holes 25 penetrating through the upper end and the lower end are formed in the position, close to the outer edge, of the bottom cover plate 23 at intervals along the circumferential direction, the plurality of fourth mounting holes 24 and the plurality of fifth mounting holes 25 are arranged in an up-and-down corresponding mode, at least one positioning structure is arranged on the upper surface and the lower surface, opposite to the bottom cover plate 23, the positioning structure is a second positioning column and a second positioning hole, and the. The lower heat dissipation plate 22 and the bottom cover plate 23 are conveniently connected together by a plurality of screws 28 passing through the plurality of fourth mounting holes 24 and the plurality of fifth mounting holes 25.

The upper surface of the bottom cover plate 23 is provided with a second fluid flow channel 29, the second fluid flow channel 29 in this embodiment is of a double-flow-channel fin type structure, and the second fluid flow channel 29 is provided with antifreeze fluid. Two lug plates 30 protrude outwards from one side of the side surface of the lower heat dissipation plate 22 corresponding to the positions of the liquid inlet 18 and the liquid outlet 19, through holes 31 are respectively formed in the two lug plates 30, the two through holes 31 are respectively communicated with the liquid inlet 18 and the liquid outlet 19, the two through holes 31 are communicated with a second fluid flow channel 29, and a second sealing ring 32 is arranged between the lower heat dissipation plate 22 and the bottom cover plate 23, so that fluid can flow in the inner cavity of the lower heat dissipation shell 4 and the lower fluid cavity of the upper heat dissipation shell 3, and the heating of the heating element 1 is realized.

A third sealing ring 33 is arranged between the upper heat-dissipating plate 8 and the lower heat-dissipating plate 22, and the heating element 1 is hermetically clamped in the accommodating cavity between the upper heat-dissipating plate 8 and the lower heat-dissipating plate 9.

The lower surface of the upper heat dispersion plate 8 and the upper surface of the lower heat dispersion plate 22, which are in contact with the heating element 1, are provided with a plurality of mounting areas 34, respectively, each mounting area 34 is used for placing a heating plate block of the heating element 1, and the adjacent mounting areas 34 are connected through a circular arc-shaped conductor.

When in use, the heating element 1 is clamped between the upper heat dissipation plate 8 and the lower heat dissipation plate 22, and transfers heat to fluid flowing in the high-pressure water heater through fluid-liquid transfer in the inner cavity of the lower heat dissipation shell 4 and the lower fluid cavity of the upper heat dissipation shell 3, so as to realize the heating function of the high-pressure water heater product; the lower heat dissipation plate 22 and the bottom cover plate 23 are combined to form a lower heat dissipation shell 4 (lower fluid cavity); the upper heat dissipation plate 8 and the control cavity plate 5 are combined to form a lower fluid cavity (upper fluid cavity); through the first fluid flow channel 10, the second fluid flow channel 29 and the detailed design of the communication between the two, the fluid entering from one liquid inlet 18 is respectively guided into the lower fluid cavity (upper fluid cavity) and the lower heat dissipation shell 4 (lower fluid cavity), and the heat exchange function is realized through the flow of the fluid; at the ends of the lower fluid cavity (upper fluid cavity) and the lower heat dissipation shell 4 (lower fluid cavity), the fluid flows out from the same liquid outlet 19 after being merged; the upper radiating shell 3 and the lower radiating shell 4 are fastened through screws, so that the technical characteristics of simple product structure and convenience in assembly are realized; positioning columns or positioning holes are designed among different plate bodies, so that the assembly convenience and reliability of the product are realized; the IGBT21 element on the control circuit board 20 is designed to contact the heat dissipation surface with the control cavity plate 5, and the IGBT21 can be effectively prevented from being damaged due to overheating because the control cavity plate 5 is in contact with the lower fluid cavity and heat is dissipated to the IGBT21 through the fluid liquid. The heat dissipation performance is improved, and the reliability of the product is improved.

The utility model discloses a binding face with last heating panel 8 and lower heating panel 22 and heating element 1 contact is separated into a plurality of square installation area 34, reserve certain design clearance between the installation area 34, like this at heating element 1 and last heat dissipation casing 3, when heat dissipation casing 4 cooperates down, because go up heat dissipation casing 3, when heat dissipation casing 4 needs relative movement between the square installation area 34 because height or thickness deviation down, the electrode plate shape deformation force that needs to overcome has just reduced, the reliability of whole improvement product.

The utility model discloses a multilayer range upon range of formula design, with heating element 1 through with last heating panel 8, lower heating panel 22 closely laminate, realize the function of heating of product to this design has simplified the equipment process, has improved the packaging efficiency, and is associated IGBT 21's heat dissipation and fluid, improves the reliability of radiating effect and product.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a high pressure water heater device in electric vehicle, its characterized in that includes heating element, heating element centre gripping is between last heat dissipation casing and the lower heat dissipation casing, it is connected with the control chamber board to go up the heat dissipation casing, the control chamber board will go up heat dissipation casing inner chamber and divide into control chamber and lower fluid chamber, lower fluid chamber with lower heat dissipation casing inner chamber intercommunication, be equipped with control circuit board on the control chamber board, control circuit board connects the IGBT, the cooling surface of IGBT with the control chamber board contact, control circuit board and IGBT locate go up the control chamber, go up the heat dissipation casing and link together through dismantling the connecting piece with lower heat dissipation casing.

2. The high pressure water heater apparatus in an electric vehicle according to claim 1, wherein heat conductive insulating films are provided on upper and lower surfaces of the heating element, respectively, and the upper and lower heat dissipating housings are sandwiched between the two heat conductive insulating films.

3. The high pressure water heater apparatus in an electric vehicle according to claim 1, wherein a plurality of mounting regions are provided on surfaces of the upper heat dissipating housing and the lower heat dissipating housing, which are in contact with the heating elements, respectively, the heating elements being placed in the plurality of mounting regions, and adjacent mounting regions being connected by a circular arc shaped conductor.

4. The high pressure water heater apparatus in an electric vehicle according to claim 1, wherein a seal ring is provided between the upper heat dissipation housing and the lower heat dissipation housing.

5. The high pressure water heater apparatus in an electric vehicle according to claim 1, wherein the upper heat dissipating housing includes an upper heat dissipating plate and an upper cover plate, an upper surface of the heating element is attached to a lower surface of the upper heat dissipating plate, the control chamber plate is disposed between the upper heat dissipating plate and the upper cover plate, the upper heat dissipating plate, the control chamber plate and the upper cover plate are connected together by a detachable connector, the lower fluid chamber is formed between the upper heat dissipating plate and the control chamber plate, the upper control chamber is formed between the control chamber plate and the upper cover plate, and a sealing ring is disposed between the upper cover plate and the upper heat dissipating plate.

6. The high pressure water heater apparatus in an electric vehicle according to claim 5, wherein a first fluid flow passage is provided on an upper surface of the upper heat dissipating plate.

7. The high pressure water heater apparatus in an electric vehicle as claimed in claim 5, wherein the upper heat dissipating plate has a liquid inlet and a liquid outlet on its side, and the liquid inlet and the liquid outlet are respectively communicated with the inner cavity of the upper heat dissipating housing.

8. The electric vehicle interior high pressure water heater apparatus as claimed in claim 5, wherein the upper heat dissipating plate has a plurality of first mounting holes penetrating upper and lower ends thereof at a circumferential interval at a position close to the outer edge, the control chamber plate has a plurality of second mounting holes penetrating upper and lower ends thereof at a circumferential interval at a position close to the outer edge, the upper cover plate has a plurality of third mounting holes penetrating upper and lower ends thereof at a circumferential interval at a position close to the outer edge, the plurality of first mounting holes, the plurality of second mounting holes and the plurality of third mounting holes are vertically disposed in a corresponding relationship, and the upper heat dissipating plate, the control chamber plate and the upper cover plate are connected together by a plurality of the detachable connectors passing through the plurality of first mounting holes, the plurality of second mounting holes and the plurality of third mounting holes.

9. The apparatus of claim 8, wherein at least one positioning mechanism is disposed between adjacent surfaces of the upper cover plate, the control chamber plate and the upper heat dissipating plate, and the positioning mechanism facilitates the connection of the upper heat dissipating plate, the control chamber plate and the upper cover plate through a plurality of detachable connectors passing through the plurality of first mounting holes, the plurality of second mounting holes and the plurality of third mounting holes.

10. The high pressure water heater apparatus in the electric vehicle according to claim 5, wherein a first mounting seat extends upward from a side surface of the upper cover plate, the first mounting seat is detachably connected to a low pressure connector of the high pressure water heater, a second mounting seat extends downward from a position corresponding to the first mounting seat on the side surface of the upper heat dissipating plate, the second mounting seat is detachably connected to a high pressure connector of the high pressure water heater, and both the low pressure connector and the high pressure connector are electrically connected to the control circuit board.

11. The high pressure water heater apparatus in the electric vehicle according to claim 7, wherein the lower heat dissipation housing includes a lower heat dissipation plate and a bottom cover plate, the lower surface of the heating element is attached to the upper surface of the lower heat dissipation plate, the lower heat dissipation plate is connected with the bottom cover plate through the detachable connecting member, the upper surface of the bottom cover plate is provided with a second fluid flow channel, two lug plates protrude outwards from one side of the side surface of the lower heat dissipation plate corresponding to the positions of the liquid inlet and the liquid outlet, through holes are respectively formed in the two lug plates, the two through holes are respectively communicated with the liquid inlet and the liquid outlet, the two through holes are communicated with the second fluid flow channel, and a sealing ring is arranged between the lower heat dissipation plate and the bottom cover plate.

12. The apparatus according to claim 11, wherein the lower heat dissipating plate has a plurality of fourth mounting holes formed through upper and lower ends thereof at a circumferential interval at a portion near the outer edge, and a plurality of fifth mounting holes formed through upper and lower ends thereof at a circumferential interval at a portion near the outer edge, and the bottom cover plate has a plurality of fourth mounting holes formed through upper and lower ends thereof at a circumferential interval, and the plurality of fourth mounting holes and the plurality of fifth mounting holes are vertically disposed to correspond to each other, and the lower heat dissipating plate and the bottom cover plate are connected to each other by a plurality of the detachable connectors passing through the plurality of fourth mounting holes and the plurality of fifth mounting holes.

13. The apparatus of claim 12, wherein at least one positioning mechanism is disposed between the lower heat dissipating plate and the bottom cover plate, and the positioning mechanism facilitates the connection of the lower heat dissipating plate and the bottom cover plate through a plurality of detachable connectors passing through the plurality of fourth mounting holes and the plurality of fifth mounting holes.