CN214589016U

CN214589016U - Insert formula liquid cooling system soon and battery package

Info

Publication number: CN214589016U
Application number: CN202120848167.9U
Authority: CN
Inventors: 程艳明; 邬亨英; 郭伟华
Original assignee: Farasis Energy Ganzhou Co Ltd
Current assignee: Farasis Energy Ganzhou Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-02
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a plug-in liquid cooling system and battery package soon, battery liquid cooling system include bottom plate and at least one liquid cooling board, be provided with the box runner in the bottom plate, be provided with the liquid cooling runner in the liquid cooling board, the liquid cooling board is fixed through at least one grafting mechanism on the bottom plate, just the liquid cooling runner through at least one grafting mechanism with the box runner intercommunication. The utility model discloses the liquid cooling pipeline setting originally in both sides forms the box runner in the bottom plate, and this bottom plate can be directly as the bottom plate of battery box or install on the box bottom plate, realizes that the liquid cooling pipeline is integrated with the battery box, has saved the liquid cooling pipeline and the relevant part of both sides, and the space occupies for a short time, cost reduction. In addition, the liquid cooling plate is made into the formula of inserting soon, directly pegs graft on the bottom plate, makes the liquid cooling runner and the box runner intercommunication in the liquid cooling plate, can carry out quick installation of liquid cooling plate and change, and the installation is dismantled conveniently, and maintainability is high, and is with low costs also, and liquid cooling system temperature regulating performance is strong.

Description

Insert formula liquid cooling system soon and battery package

Technical Field

The utility model relates to a new forms of energy battery technical field, concretely relates to insert formula liquid cooling system and battery soon.

Background

The pipeline runner that the liquid cooling system of present battery package was mostly gone contains spare parts such as liquid cooling pipeline, liquid cooling board, inlet outlet, and general liquid cooling pipeline is laid and is arranged in battery box both sides, and the liquid cooling board is made independent spare part and is assembled as a whole with the battery module and then be connected with the liquid cooling pipeline, perhaps liquid cooling board and battery box welding are made integratively, carries out the liquid cooling tube coupling with the liquid cooling pipe bayonet joint between liquid cooling board and the liquid cooling board.

By the design scheme, the liquid cooling system has the following problems: the first position of having taken the battery box side, occupation space is big, and second liquid cooling board becomes an organic whole with the battery module, if the liquid cooling board trouble, needs to pull down whole module, and maintainability is than relatively poor, and the third, the existence of liquid cooling pipeline and relevant plug also makes whole liquid cooling system cost higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a formula liquid cooling system and battery are inserted soon is provided, and is with low costs, simple process, and space utilization is high, and the installation is dismantled conveniently, and maintainability is high.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the battery liquid cooling system comprises a bottom plate and at least one liquid cooling plate, wherein a box runner is arranged in the bottom plate, a liquid cooling runner is arranged in the liquid cooling plate, the liquid cooling plate is fixed on the bottom plate through at least one plug-in mechanism, and the liquid cooling runner is communicated with the box runner through at least one plug-in mechanism.

The utility model discloses the liquid cooling pipeline setting originally in both sides forms the box runner in the bottom plate, and this bottom plate can be directly as the bottom plate of battery box or install on the battery box, realizes that the liquid cooling pipeline is integrated with the battery box, has saved the liquid cooling pipeline and the relevant part of both sides, and the space occupies for a short time, cost reduction. In addition, the liquid cooling plate is made into the formula of inserting soon, directly pegs graft on the bottom plate, makes the liquid cooling runner and the box runner intercommunication in the liquid cooling plate, can carry out quick installation of liquid cooling plate and change, and the installation is dismantled conveniently, and maintainability is high, and is with low costs also, and liquid cooling system temperature regulating performance is strong.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the inserting mechanism comprises a plug and a socket, the plug is fixedly connected to one of the liquid cooling plate or the bottom plate, the socket is fixedly connected to the other of the liquid cooling plate or the bottom plate, the plug is inserted into the socket, and the plug is communicated with the liquid cooling flow channel and the box body flow channel. The grafting mechanism needs to realize pegging graft fast of liquid cooling board and bottom plate, it is all very convenient that the installation is dismantled, still need satisfy the intercommunication of liquid cooling runner and box runner when going on pegging graft, one of them feasible scheme is pegged graft fast for the mode that adopts plug and socket, plug and socket are fixed respectively to liquid cooling board and bottom plate, the two fixed position can be exchanged, the plug inserts the socket, plug socket cover is outside the plug, when the realization is pegged graft dismantled, guarantee sealing performance, form the plug runner in the plug, be used for communicateing liquid cooling runner and box runner.

Furthermore, the inserting mechanism further comprises at least one clamping piece, the socket is correspondingly provided with at least one mounting hole which is communicated with the inside and the outside, the outer side wall of the plug is provided with clamping grooves corresponding to the mounting holes, the clamping piece is installed in the corresponding mounting hole and can stretch into the corresponding clamping grooves to lock the plug and the socket or withdraw from the corresponding clamping grooves to unlock the plug and the socket. In the mode that plug and socket are pegged graft, still need to lock or unblock plug and socket and make its fixed or the switch structure of separation, one of them feasible scheme is at least one joint spare, the mounting hole is the rectangular form arc hole that extends along circumference, joint spare is installed in the mounting hole, it passes the socket in the outside, set up the screens groove that corresponds on the inboard plug lateral wall, the screens groove can be the ring channel that extends with the whole circles circumference that correspond of all mounting holes, also can be the rectangular form arc groove that the multistage corresponds with the mounting hole one-to-one respectively, joint spare can be very convenient stretch into or withdraw from the screens groove, thereby realize the quick grafting of plug and socket, satisfy the demand that the quick installation of liquid cooling board and change, the installation is dismantled conveniently, be convenient for, low maintenance cost.

Further, the joint spare includes buckle, jump ring and bolt, the bolt is installed in the mounting hole, the buckle middle part with the bolt rotates to be connected, its one end pass through the jump ring with the socket butt, the other end with the screens groove corresponds. The structure of elasticity buckle formula can be selected to specific joint spare, the bolt is fixed in the mounting hole along the axial of socket, specifically can be the socket sets up the bolt hole along the axial, bolt hole one end runs through on the terminal surface of socket to its one end, the bolt inserts to the mounting hole from this one end, the bolt rotation location is passed through at the buckle middle part, and utilize the elastic force of jump ring to make the buckle card go into the screens inslot, realize the lock locking of plug and socket, when liquid cold drawing under the bottom plate is dismantled to needs follow, through pressing buckle one end, the compression jump ring, make the buckle other end withdraw from the screens groove, realize the separation unblock of plug and socket, can follow the plug and extract the plug in the socket, the plug is very convenient, the technical scheme of preferred.

Further, at least one sealing ring is arranged between the inner side wall of the socket and the outer side wall of the plug. The liquid cooling medium flows through from the plug runner in the plug, realizes the intercommunication of liquid cooling runner and box runner, but because the socket is the overcoat outside the plug, there may be the clearance between plug and socket, leads to the liquid cooling medium to reveal, so need set up the sealing washer between plug and socket, guarantees sealing performance.

Furthermore, the liquid cooling plate is inserted into the bottom plate through two insertion mechanisms respectively positioned at two ends of the liquid cooling plate. In order to ensure the circulation flow of the liquid cooling medium, if only one plugging mechanism is communicated between the liquid cooling flow passage and the box body flow passage, the flow of the liquid cooling medium can have problems, and a power part and other inlets and outlets are additionally arranged.

Furthermore, the liquid cooling runner is S-shaped, and two ends of the liquid cooling runner are respectively communicated with the box body runner through the corresponding inserting mechanisms. In order to fill the liquid cooling medium in the liquid cooling runner and ensure the liquid cooling effect, the shape of the liquid cooling runner needs to meet the requirement that the liquid cooling medium can be filled in the whole liquid cooling runner after entering the liquid cooling runner from the inlet and then discharged from the outlet, so that the liquid cooling runner is designed into an S shape, can be a transverse S shape which is filled with the liquid cooling medium from bottom to top in sequence, and finally directly converges to the outlet from the uppermost end, and also can be a vertical S shape which is filled with the liquid cooling medium from side to top in sequence and finally converges to the outlet.

Further, be provided with box runner baffle in the bottom plate, box runner baffle will the box runner is separated into intake antrum and play water cavity, the intake antrum with it is respectively through corresponding grafting mechanism with the liquid cooling runner intercommunication to go out the water cavity, the bottom plate have respectively with intake antrum with go out the water inlet and the delivery port of water cavity intercommunication. The two plugging mechanisms are respectively used as an inlet and an outlet of the liquid cooling channel, in order to ensure that the liquid cooling medium circulates smoothly in the box body channel and the liquid cooling channel, the inside of the box body channel needs to be correspondingly divided into two cavities which are not communicated, and the two cavities are respectively communicated with the liquid cooling channel through the plugging mechanisms, so that the liquid cooling medium flows through the liquid cooling channel from one cavity of the box body channel through the plugging mechanisms, and then returns to the other cavity of the box body channel through the plugging mechanisms to form a complete circulation loop. If the whole cavity is arranged in the box body flow channel, although the two inserting mechanisms are communicated with the liquid cooling flow channel, the liquid cooling medium cannot flow due to the fact that the pressures on the two sides are equal.

Furthermore, the liquid cooling plates are arranged in a plurality of numbers, are vertically inserted into the bottom plate and are parallel to each other. The battery pack can include a plurality of electric core modules usually, therefore the liquid cooling plate also can set up to a plurality of, for example eight, and the liquid cooling medium that flows in the liquid cooling plate carries out even cooling to electric core module. And according to the installation habit, the liquid cooling plate is vertically installed with the bottom plate, and the battery cell module is fully contacted with the liquid cooling plate. If the battery cell module has a special shape, the liquid cooling plate is correspondingly adjusted, and can be obliquely arranged at an angle with the bottom plate instead of being perpendicular to the bottom plate, or the liquid cooling plate can be designed to be in an arc shape.

The utility model discloses still relate to a battery package, including battery box, at least one electric core module and liquid cooling system, the liquid cooling system do the battery liquid cooling system, it is installed on the battery box, electric core module is installed between the liquid cooling board or the battery box with between the liquid cooling board. The bottom plate of battery liquid cooling system as the bottom plate of battery box, the curb plate of battery box encloses and establishes around the bottom plate, can adopt integrated into one piece or fixed connection (for example welding)'s mode, form the installation cavity, divide into the installation region who is used for installing each electric core module with the installation cavity by the liquid cooling board again, electric core module installs on the bottom plate, be located between the liquid cooling board or between the curb plate of battery box and the liquid cooling board, with the liquid cooling board closely contact, and according to practical application, add heat-conducting medium between electric core module and liquid cooling board or bottom plate and strengthen heat conduction (for example heat-conducting paste or heat-conducting gasket), or add heat preservation medium between electric core module and the bottom plate and carry out thermal-insulated (for example bubble cotton or aerogel felt), realize heat transfer and whole temperature balance.

Drawings

Fig. 1 is a schematic structural view of a battery pack according to the present invention;

FIG. 2 is a cross-sectional view of a longitudinal section of a liquid cooling plate of the battery pack of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an exploded view of the liquid cooling plate and the plugging mechanism of the present invention;

fig. 5 is a cross-sectional view of the cross section of the buckle when the plugging structure of the present invention is locked;

fig. 6 is a cross-sectional view of the cross section of the buckle during the unlocking of the plug structure.

In the drawings, the components represented by the respective reference numerals are listed below:

1. liquid cooling board, 11, liquid cooling runner, 2, bottom plate, 21, box runner, 22, box runner baffle, 23, water inlet, 24, delivery port, 3, grafting mechanism, 31, plug, 32, socket, 33, joint spare, 331, buckle, 332, bolt, 333, mounting hole, 334, screens groove, 335, jump ring, 34, sealing washer, 4, battery box.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1 to 3, the embodiment relates to a battery liquid cooling system, which includes a bottom plate 2 and at least one liquid cooling plate 1, wherein a tank flow channel 21 is disposed in the bottom plate 2, a liquid cooling flow channel 11 is disposed in the liquid cooling plate 1, the liquid cooling plate 1 is fixed on the bottom plate 2 through at least one plug-in mechanism 3, and the liquid cooling flow channel 11 is communicated with the tank flow channel 21 through at least one plug-in mechanism 3.

This embodiment is original liquid cooling pipeline setting in bottom plate 2 at both sides, forms box runner 21, and this bottom plate 2 can be directly as the bottom plate 2 of battery box 4 or install on battery box 4, realizes that the liquid cooling pipeline is integrated with battery box 4, has saved the liquid cooling pipeline and the relevant part of both sides, and the space occupies for a short time, cost reduction. In addition, the liquid cooling plate 1 is made into the quick insertion type and is directly inserted into the bottom plate 2, so that the liquid cooling runner 11 in the liquid cooling plate 1 is communicated with the box body runner 21, the liquid cooling plate 1 can be quickly installed and replaced, the installation and the disassembly are convenient, the maintainability is high, the cost is not high, and the temperature adjusting performance of a liquid cooling system is strong.

Example 2

As shown in fig. 3 and 4, the plugging mechanism 3 includes a plug 31 and a socket 32, the plug 31 is fixedly connected to one of the liquid cooling plate 1 or the bottom plate 2, the socket 32 is fixedly connected to the other of the liquid cooling plate 1 or the bottom plate 2, the plug 31 is inserted into the socket 32, and a plug flow passage for communicating the liquid cooling flow passage 11 with the tank flow passage 21 is formed in the plug 31.

The plug-in mechanism 3 needs to realize the quick plug-in connection of the liquid cooling plate 1 and the bottom plate 2, the installation and the disassembly are very convenient, when the plug-in connection is carried out, the communication between the liquid cooling flow passage 21 and the box flow passage 22 needs to be met, one of the feasible schemes is to adopt the plug 31 and the socket 32 to carry out the quick plug-in connection, the plug 31 and the socket 32 are respectively fixed on the liquid cooling plate 1 and the bottom plate 2, the fixed positions of the two can be exchanged, the plug 31 is inserted into the socket 32, the socket 32 is sleeved outside the plug 31, the plug-in connection is realized, the sealing performance is ensured, the plug flow passage is formed in the plug 31, and the plug flow passage is used for communicating the liquid cooling flow passage 11 and the box flow passage 21.

The plugging mechanism 3 may also be other feasible solutions, for example, plugging mechanisms in other technical fields are adopted, and the stability of the plugging structure and the sealing property of the plugging communication can be ensured, such as an aviation plug or an oil line connector.

Consider that plug-in mechanism 3 has certain height when adopting plug 31 and socket 32's grafting structure, can make certain clearance between 1 bottom surface of liquid cooling board and the bottom plate 2 surface, the mounting means according to the electric core module of difference can adopt different processing methods, for example soft-packaged electric core module and big face are down the time, in order to guarantee that the heat transfer is even, need set up the heat insulating board in this clearance department of soft-packaged electric core module below, for example cylindrical or square electric core module and big face side direction time again, can lift the part of the corresponding installation electric core of bottom plate 2 below, eliminate this clearance.

Example 3

The plug-in mechanism 3 further comprises at least one clamping piece 33, the socket 32 corresponds to have at least one mounting hole 333 that is through inside and outside, the plug 31 lateral wall be provided with the screens groove 334 that the mounting hole 333 corresponds, the clamping piece 33 is installed correspondingly in the mounting hole 333, and can stretch into correspondingly the screens groove 334 will the plug 31 with the socket 32 locks or withdraw from the correspondence the screens groove 334 makes the plug 31 with the socket 32 unblock.

In the manner of plugging the plug 31 and the socket 32, a switch structure capable of locking or unlocking the plug 31 and the socket 32 to fix or separate the plug 31 and the socket 32 is further required, wherein one feasible scheme is that at least one clamping member 33 is provided, the mounting hole 333 is a long strip arc-shaped hole extending along the circumferential direction, the clamping member 33 is installed in the mounting hole 333 and penetrates through the socket 32 on the outer side, a corresponding clamping groove 334 is provided on the outer side wall of the plug 31 on the inner side, the clamping groove 334 can be a circle of circumferentially extending annular groove corresponding to all the mounting holes 333, or a plurality of long strip arc-shaped grooves corresponding to the mounting holes 333 one by one, and the clamping member 33 can conveniently extend into or withdraw from the clamping groove 334, so that the plug 31 and the socket 32 can be quickly plugged, the requirements of quick installation and replacement of the liquid cooling plate 1 are met, and the installation and the disassembly are convenient, the maintenance is convenient, and the cost is low.

The switch structure for fixing or separating the plug 31 and the socket 32 may also be another feasible scheme, for example, a structure similar to a nut is connected to the socket 32 through an external thread, the socket relationship between the plug 31 and the socket 32 is reasonably designed, and the plug 31 and the socket 32 are locked and unlocked by screwing the nut, but relatively speaking, the operation is more complicated, and is not as convenient as the clip member 33 enters or exits the clip groove 334.

Example 4

As shown in fig. 5 and 6, the latch 33 includes a latch 331, a latch 335, and a bolt 332, the bolt 332 is installed in the installation hole 333, the middle of the latch 331 is rotatably connected to the bolt 332, one end of the latch is abutted to the socket 32 through the latch 335, and the other end of the latch corresponds to the latching groove 334.

The specific clamping piece 33 can be an elastic clamping type structure, the pin 332 is fixed in the mounting hole 333 along the axial direction of the socket 32, specifically, the socket 32 is provided with a pin hole along the axial direction, one end of the pin hole penetrates through the socket 32 to the end face of one end of the socket, the pin 332 is inserted into the mounting hole 333 from the end, the middle of the clamp 331 is rotatably positioned through the pin 332, the clamp 331 is clamped into the clamping groove 334 by utilizing the elastic force of the clamp spring 335, so that the plug 31 and the socket 32 are locked, when the liquid cooling plate 1 needs to be detached from the bottom plate 2, one end of the clamp 331 is pressed, the clamp spring 335 is compressed, the other end of the clamp 331 is made to exit from the clamping groove 334, the plug 31 and the socket 32 are separated and unlocked, the plug 31 can be pulled out of the socket 32, the plugging is very convenient, and the preferred technical scheme is provided.

Considering the operability of pressing the buckle 331, it is more suitable to design two opposite clamping members 33, and adjust the position of the end of the two buckles 331 provided with the clamp springs 335 to the position convenient to press by one hand, so as to facilitate the operation by one hand. The function principle of the clothes hanger is the same as the principle of a clamp for airing clothes. The arrows in fig. 6 indicate the pressing direction, and the two latches 331 are pressed simultaneously where the snap springs 335 are provided.

Besides the elastic clamping scheme, the clamping member 33 may also be other feasible technical schemes, such as a pin or a screw arranged in the radial direction, where the pin is slidably connected to the mounting hole 333 and the clamping groove 334 to push the pin to be inserted into or pulled out of the clamping groove 334 to realize the inserting and pulling operation of the plug 31 and the socket 32, or the screw is screwed into the mounting hole 333 and the clamping groove 334 to screw the screw to extend into the clamping groove 334 or withdraw from the clamping groove 334 to realize the inserting and pulling operation of the plug 31 and the socket 32.

Example 5

In addition to any of embodiments 2-4, as shown in fig. 3 and 4, at least one sealing ring 34 is disposed between the inner sidewall of the socket 32 and the outer sidewall of the plug 31.

The liquid cooling medium flows through the plug flow passage in the plug 31 to realize the communication between the liquid cooling flow passage 11 and the tank flow passage 21, but because the socket 32 is externally sleeved outside the plug 31, a gap may exist between the plug 31 and the socket 32 to cause the leakage of the liquid cooling medium, and therefore, a sealing ring 34 needs to be arranged between the plug 31 and the socket 32 to ensure the sealing performance. The corresponding positions on the inner side wall of the socket 32 and/or the outer side wall of the plug 31 are provided with sealing ring clamping grooves, the sealing rings 34 are arranged in the sealing ring clamping grooves, at least two sealing rings 34 can be arranged, and a circle of sealing rings is arranged along the circumferential direction.

Example 6

In addition to any of embodiments 1 to 5, as shown in fig. 2, the liquid cooling plate 1 is inserted into the bottom plate 2 through two insertion mechanisms 3 respectively located at two ends of the liquid cooling plate.

In order to ensure the circulation flow of the liquid cooling medium, if only one plugging mechanism 3 is connected between the liquid cooling flow channel 11 and the box body flow channel 21, the flow of the liquid cooling medium can have problems, and a power part and other inlets and outlets are additionally arranged, so that the structure is complicated, therefore, two plugging mechanisms 3 can be arranged, so that the liquid cooling flow channel 11 and the box body flow channel 21 are connected at two positions, the liquid cooling medium can easily flow through the liquid cooling flow channel 11 to facilitate heat exchange, and the plugging mechanisms 3 are more suitable to be arranged at two ends of the liquid cooling plate 1 in consideration of the stability of plugging of the liquid cooling plate 1 and the bottom plate 2.

Example 7

As shown in fig. 2, the liquid cooling flow passage 11 is S-shaped, and two ends of the liquid cooling flow passage 11 are respectively communicated with the tank flow passage 21 through the corresponding plugging mechanisms 3. The arrows in fig. 2 indicate the direction of flow of the liquid cooling medium (the direction of flow is not limited and can be reversed).

In order to fill the liquid cooling medium in the liquid cooling flow passage 11 and ensure the liquid cooling effect, the shape of the liquid cooling flow passage 11 needs to meet the requirement that the liquid cooling medium can be filled in the whole liquid cooling flow passage 11 after entering the liquid cooling flow passage 11 from the inlet and then discharged from the outlet, therefore, the liquid cooling flow passage 11 is designed into an S shape, can be a transverse S shape which is filled with the liquid cooling medium from bottom to top in sequence, and finally directly converges to the outlet from the uppermost end, and also can be a vertical S shape which is filled in sequence from the side direction and finally converges to the outlet.

Example 8

As shown in fig. 2 and 3, a box flow channel partition plate 22 is arranged in the bottom plate 2, the box flow channel partition plate 22 divides the box flow channel 21 into a water inlet cavity and a water outlet cavity, the water inlet cavity and the water outlet cavity are respectively communicated with the liquid cooling flow channel 11 through the corresponding plugging mechanism 3, and the bottom plate 2 is provided with a water inlet 23 and a water outlet 24 which are respectively communicated with the water inlet cavity and the water outlet cavity.

Corresponding to the technical scheme of the two plugging mechanisms 3, the two plugging mechanisms 3 are respectively used as an inlet and an outlet of the liquid cooling runner, in order to ensure that the liquid cooling medium circulates smoothly in the box body runner 21 and the liquid cooling runner 11, the inside of the box body runner 21 needs to be correspondingly divided into two cavities which are not communicated, and the two cavities are respectively communicated with the liquid cooling runner 11 through the plugging mechanisms 3, so that the liquid cooling medium flows through the liquid cooling runner 11 from one cavity of the box body runner 21 through the plugging mechanisms 3 and then returns to the other cavity of the box body runner 21 through the plugging mechanisms 3, and a complete circulation loop is formed. If the whole chamber is arranged in the box body flow passage 21, although the two insertion mechanisms 3 are communicated with the liquid cooling flow passage 11, the liquid cooling medium cannot flow due to the equal pressures at the two sides. The water inlet 23 and the water outlet 24 may be arranged on the same side of the base plate 2 for connection to the liquid cooling medium circulation part of the battery liquid cooling system.

Example 9

As shown in fig. 1 and 2, the liquid cooling plates 1 are vertically inserted into the bottom plate 2, and the liquid cooling plates 1 are parallel to each other.

The battery pack usually includes a plurality of battery cell modules, and therefore the liquid cooling plate 1 is usually set to be a plurality of, for example eight, and the liquid cooling medium flowing in the liquid cooling plate 1 carries out even cooling to the battery cell modules. And according to the installation habit, the liquid cooling plate 1 and the bottom plate 2 are vertically installed, and the battery cell module is fully contacted with the liquid cooling plate 1. If the battery cell module has a special shape, the liquid cooling plate 1 is also adjusted correspondingly, and can be obliquely arranged at an angle with the bottom plate 2 instead of being perpendicular to the bottom plate 2, or the liquid cooling plate 1 can be designed to be in an arc shape.

Example 10

As shown in fig. 1 to 6, this embodiment relates to a battery pack, which includes a battery case 4, at least one electric core module, and a liquid cooling system, where the liquid cooling system is the battery liquid cooling system described in any one of embodiments 1 to 9, and is installed on the battery case 4, and the electric core module is installed between the liquid cooling plates 1 or between the battery case 4 and the liquid cooling plates 1. The bottom plate 2 of the battery liquid cooling system is used as the bottom plate 2 of the battery box body 4, the side plates of the battery box body 4 are arranged around the bottom plate 2 in a surrounding mode, an integrated forming or fixed connection (such as welding) mode can be adopted to form a mounting cavity, the mounting cavity is divided into mounting areas used for mounting each battery cell module by the liquid cooling plate, the battery cell modules are mounted on the bottom plate and are positioned between the liquid cooling plates or between the side plates of the battery box body and the liquid cooling plates and are in tight contact with the liquid cooling plates, and according to practical application, heat-conducting media are added between the battery cell modules and the liquid cooling plates or between the battery cell modules and the bottom plate to enhance heat conduction (such as heat-conducting paste or heat-conducting gaskets), or heat-insulating media are added between the battery cell modules and the bottom plate to insulate heat (such as foam or aerogel felt), so that heat exchange and integral temperature balance are realized.

In the above embodiment, the liquid-cooled panel 1 may be formed by a harmonica tube or by integral extrusion; the plug 31 and the liquid cooling plate 1 are integrated and can be welded or riveted; the socket 32 and the bottom plate 2 are integrated and can be welded or riveted; the bottom plate 2 can be integrated, and a plurality of plates can be spliced and welded; the box body flow passage 21 can be brazed, and can also be spliced after being integrally formed into a plurality of small units as the bottom plate 2; the plug 31 and the socket 32 are required to satisfy the sealing requirement, the requirement of installing and fixing the liquid-cooling plate 1, the requirement of being convenient to disassemble, and the like, and can be the scheme shown in fig. 3 or similar to the scheme shown in fig. 3. In order to improve the heat management efficiency, the inner surface and the outer surface of the battery box body 4 need to be coated with heat insulation materials.

In the description of the present invention, it is to be understood that 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The battery liquid cooling system is characterized by comprising a bottom plate (2) and at least one liquid cooling plate (1), wherein a box body flow channel (21) is arranged in the bottom plate (2), a liquid cooling flow channel (11) is arranged in the liquid cooling plate (1), the liquid cooling plate (1) is fixed on the bottom plate (2) through at least one inserting mechanism (3), and the liquid cooling flow channel (11) is communicated with the box body flow channel (21) through at least one inserting mechanism (3).

2. The battery liquid cooling system according to claim 1, wherein the plug-in mechanism (3) comprises a plug (31) and a socket (32), the plug (31) is fixedly connected to one of the liquid cooling plate (1) or the bottom plate (2), the socket (32) is fixedly connected to the other of the liquid cooling plate (1) or the bottom plate (2), the plug (31) is inserted into the socket (32), and a plug flow passage for communicating the liquid cooling flow passage (11) with the tank flow passage (21) is formed through the inside of the plug (31).

3. The battery liquid cooling system according to claim 2, wherein the plug-in mechanism (3) further comprises at least one clip member (33), the socket (32) has at least one inner and outer through mounting hole (333), a locking groove (334) corresponding to the mounting hole (333) is disposed on an outer sidewall of the plug (31), the clip member (33) is installed in the corresponding mounting hole (333) and can extend into the corresponding locking groove (334) to lock the plug (31) and the socket (32) or exit from the corresponding locking groove (334) to unlock the plug (31) and the socket (32).

4. The battery liquid cooling system according to claim 3, wherein the clip member (33) comprises a clip (331), a clip spring (335) and a plug (332), the plug (332) is installed in the installation hole (333), the middle of the clip (331) is rotatably connected to the plug (332), one end of the plug is abutted to the socket (32) through the clip spring (335), and the other end of the plug corresponds to the clip groove (334).

5. The battery liquid cooling system of claim 2, wherein at least one seal (34) is disposed between an inner sidewall of the socket (32) and an outer sidewall of the plug (31).

6. The battery liquid cooling system according to any one of claims 1 to 5, wherein the liquid cooling plate (1) is plugged onto the base plate (2) by two plugging mechanisms (3) respectively located at two ends thereof.

7. The battery liquid cooling system of claim 6, wherein the liquid cooling channel (11) is S-shaped, and two ends of the liquid cooling channel (11) are respectively connected to the box channel (21) through the corresponding plugging mechanism (3).

8. The battery liquid cooling system of claim 7, wherein a box flow channel partition plate (22) is disposed in the bottom plate (2), the box flow channel partition plate (22) divides the box flow channel (21) into a water inlet cavity and a water outlet cavity, the water inlet cavity and the water outlet cavity are respectively communicated with the liquid cooling flow channel (11) through the corresponding plugging mechanism (3), and the bottom plate (2) has a water inlet (23) and a water outlet (24) respectively communicated with the water inlet cavity and the water outlet cavity.

9. The battery liquid cooling system according to any one of claims 1 to 5, wherein a plurality of the liquid cooling plates (1) are vertically inserted into the base plate (2), and a plurality of the liquid cooling plates (1) are parallel to each other.

10. A battery pack, comprising a battery box (4), at least one battery cell module and a liquid cooling system, wherein the liquid cooling system is the battery liquid cooling system as claimed in any one of claims 1 to 9, a bottom plate (2) of the battery liquid cooling system is used as the bottom plate (2) of the battery box (4), side plates of the battery box (4) are arranged around the bottom plate (2) to form a mounting cavity, the mounting cavity is divided into mounting areas for mounting the battery cell modules by the liquid cooling plate (1), and the battery cell modules are mounted between the liquid cooling plates (1) or between the side plates of the battery box (4) and the liquid cooling plates (1); adding a heat-conducting medium between the battery cell module and the liquid cooling plate (1) or the bottom plate (2), or adding a heat-insulating medium between the battery cell module and the bottom plate (2).