Cooling structure of direct cooling plate

Abstract

The utility model discloses a cooling structure of a direct cooling plate, which comprises at least two direct cooling plate units used for cooling a battery cell; the two direct cooling plate units are communicated with each other through the direct cooling plate joints; the direct cooling plate connector comprises a direct cooling plate single body and a connecting pipe single body, the direct cooling plate single body is detachably connected with the connecting pipe single body, the direct cooling plate single body is communicated with the connecting pipe single body, and the distance between the direct cooling plate single body and the connecting pipe single body is adjustable. Due to the fact that the direct cooling plate single bodies and the connecting pipe single bodies are detachably connected, the direct cooling plate connector can extend according to the number of the actually-communicated direct cooling plate units so as to be suitable for different numbers of direct cooling plate units, and the size deviation of the direct cooling plate units during installation is compensated by adjusting the distance between the direct cooling plate single bodies and the connecting pipe single bodies. Therefore, the installation and the use of the utility model are realized, the assembly tolerance is high, the overall structure is simple, and durability is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a direct cooling plate cooling structure. BACKGROUND

[0002] At present, circular battery cells generally adopt single direct cooling plate cooling, and since the circular battery gradually starts to have the feature of double cover plate structure, there are the following problems for the circular battery with double cover plate structure:

[0003] 1. Multiple direct cooling plates are needed to realize cooling;

[0004] 2. Size deviation exists in the assembly process of multiple direct cooling plates, which affects normal installation.

[0005] Chinese utility model patent CN219317917U discloses a metal quick connector, a direct cooling system and a battery pack, wherein the direct cooling system includes a direct cooling plate 400, a cold pipe and the above-mentioned metal quick connector, two ends of the cold pipe are connected with the direct cooling plate 400 and the female connector 200 respectively, the female connector 200 is connected with the male connector 100 in a plug-in manner, and the male connector 100 is connected with a cold source. This scheme is difficult to be directly applied to the connection of a large number of direct cooling plates, and it is difficult to directly use the metal quick connector for installation when size deviation exists in the installation of multiple direct cooling plates. SUMMARY

[0006] In order to overcome at least one of the defects of the prior art, the utility model provides a direct cooling plate cooling structure, since the direct cooling plate monomer and the connecting pipe monomer can be detachably connected, the direct cooling plate connector can be extended according to the number of actually connected direct cooling plate units, so as to be applicable to different numbers of direct cooling plate units, and the spacing between the direct cooling plate monomer and the connecting pipe monomer is adjustable, the size deviation in the installation of the direct cooling plate unit is compensated by adjusting the spacing between the direct cooling plate monomer and the connecting pipe monomer, so that the installation and use of the utility model are realized, the utility model has high assembly tolerance, and the overall structure is simple and durable.

[0007] The utility model adopts the technical scheme that:

[0008] A direct cooling plate cooling structure comprises:

[0009] At least two direct cooling plate units, the direct cooling plate unit is used for cooling the battery cell;

[0010] A direct cooling plate connector, the two direct cooling plate units are connected with each other through the direct cooling plate connector;

[0011] The straight cooling plate joint comprises a straight cooling plate unit and a connecting pipe unit, the straight cooling plate unit is detachably connected with the connecting pipe unit, the straight cooling plate unit and the connecting pipe unit are in communication with each other, and the spacing between the straight cooling plate unit and the connecting pipe unit is adjustable.

[0012] In a preferred embodiment, the straight cooling plate unit and the connecting pipe unit are connected through threads.

[0013] In a preferred embodiment, the straight cooling plate unit and the connecting pipe unit are connected through nesting.

[0014] In a preferred embodiment, the straight cooling plate unit and the connecting pipe unit are connected through buckling.

[0015] In a preferred embodiment, a plurality of straight cooling plate units are arranged in parallel with each other, the straight cooling plate units are arranged in a snake shape along a first direction, and the straight cooling plate joint is arranged along a second direction.

[0016] The first direction and the second direction are perpendicular or substantially perpendicular to each other.

[0017] In a preferred embodiment, two connecting pipe units are arranged between two adjacent straight cooling plate units, and the two connecting pipe units arranged between the two straight cooling plate units constitute a connecting pipe unit.

[0018] In the connecting pipe unit, one connecting pipe unit is used for introducing refrigerant, and the other connecting pipe unit is used for discharging refrigerant.

[0019] The straight cooling plate unit is internally provided with a refrigerant introduction channel and a refrigerant discharge channel, the refrigerant introduction channel is in communication with the connecting pipe unit for introducing refrigerant, and the refrigerant discharge channel is in communication with the connecting pipe unit for discharging refrigerant.

[0020] In a preferred embodiment, the straight cooling plate cooling structure further comprises a connecting unit, the straight cooling plate unit and the straight cooling plate joint are in communication with each other through the connecting unit.

[0021] In a preferred embodiment, the straight cooling plate unit is internally provided with a containing cavity for containing refrigerant.

[0022] The connecting unit comprises a first pipe body and a second pipe body, one end of the first pipe body is in communication with the containing cavity of the straight cooling plate unit, the other end of the first pipe body is in communication with the refrigerant introduction channel, one end of the second pipe body is in communication with the containing cavity of the straight cooling plate unit, and the other end of the second pipe body is in communication with the refrigerant discharge channel.

[0023] In a preferred embodiment, a single straight cooling plate unit corresponds to a row of battery cells, the row of battery cells comprises a plurality of spaced battery cell units, and the straight cooling plate unit is arranged in a snake shape along the up-down direction between the plurality of spaced battery cell units.

[0024] In a preferred embodiment, the outer surface of the direct cooling plate unit is provided with an insulating adhesive layer, and the direct cooling plate unit is connected and fixed with the battery cell monomer through the insulating adhesive layer.

[0025] In summary, the direct cooling plate joint can be extended according to the number of the actually connected direct cooling plate units, so as to be suitable for different numbers of direct cooling plate units, and the spacing between the direct cooling plate monomer and the connecting pipe monomer is adjustable, and the size deviation during installation of the direct cooling plate unit is compensated by adjusting the spacing between the direct cooling plate monomer and the connecting pipe monomer, so as to realize the installation and use of the utility model, and the utility model has high assembly tolerance, and has simple overall structure and durability. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a top view schematic diagram of the overall structure of the embodiment 1 of the utility model;

[0027] Figure 2 is a side view schematic diagram of the overall structure of the embodiment 1 of the utility model;

[0028] Figure 3 is a bottom view schematic diagram of the direct cooling plate joint of the embodiment 1 of the utility model;

[0029] Figure 4 is a side view schematic diagram of the direct cooling plate monomer of the embodiment 1 of the utility model.

[0030] Among them, the meaning of the reference signs is as follows:

[0031] 10, direct cooling plate unit, 20, direct cooling plate joint, 201, direct cooling plate monomer, 202, connecting pipe monomer, 203, refrigerant introduction channel, 204, refrigerant outlet channel, 30, connecting unit, 301, first pipe body, 302, second pipe body, 40, insulating adhesive layer. DETAILED DESCRIPTION

[0032] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0033] In the description of the utility model, it should be explained that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0035] Embodiment 1

[0036] Referring to Figures 1-4 The utility model discloses a direct cooling plate cooling structure, include: at least two direct cooling plate unit 10, direct cooling plate unit 10 is used to cool the electric core, direct cooling plate joint 20, two direct cooling plate unit 10 pass through direct cooling plate joint 20 and communicate with each other, direct cooling plate joint 20 includes direct cooling plate monomer 201 and the connecting pipe monomer 202, and direct cooling plate monomer 201 and the connecting pipe monomer 202 can be detachable connection, direct cooling plate monomer 201 and the connecting pipe monomer 202 communicate with each other, and the spacing between direct cooling plate monomer 201 and the connecting pipe monomer 202 is adjustable.

[0037] Referring to Figure 1 The number of direct cooling plate unit 10 can be four, of course can be three, five etc., according to the number of direct cooling plate unit 10 increases and reduces the number of direct cooling plate monomer 201 and the connecting pipe monomer 202.

[0038] Because direct cooling plate monomer 201 and the connecting pipe monomer 202 can be detachable connection, so direct cooling plate joint 20 can extend according to the number of actual communication direct cooling plate unit 10 to be applicable to different number of direct cooling plate unit 10, and the spacing between direct cooling plate monomer 201 and the connecting pipe monomer 202 is adjustable, the size deviation when installing direct cooling plate unit 10 is compensated by adjusting the spacing between direct cooling plate monomer 201 and the connecting pipe monomer 202, to realize the installation and use of the utility model, the utility model assembly tolerance is higher, and the overall structure is simple and durable.

[0039] In the utility model embodiment, direct cooling plate monomer 201 and the connecting pipe monomer 202 pass through threaded connection.

[0040] Specifically, when the spacing between two direct cooling plate units 10 appears positive deviation, that is, when the spacing between two direct cooling plate units 10 is greater than the predetermined spacing, the connecting pipe monomer 202 can be rotated positively so that the spacing between two direct cooling plate monomers 201 increases to adapt to the spacing between two direct cooling plate units 10; when the spacing between two direct cooling plate units 10 appears negative deviation, that is, when the spacing between two direct cooling plate units 10 is less than the predetermined spacing, the connecting pipe monomer 202 can be rotated reversely so that the spacing between two direct cooling plate monomers 201 decreases to adapt to the spacing between two direct cooling plate units 10.

[0041] The forward rotation refers to clockwise rotation, and the reverse rotation refers to counterclockwise rotation, or the forward rotation refers to counterclockwise rotation, and the reverse rotation refers to clockwise rotation, depending on the actual situation, and is not limited.

[0042] In the embodiment of the utility model, multiple straight cooling plate units 10 are arranged parallel to each other, the straight cooling plate unit 10 is arranged along the first direction, and the straight cooling plate joint 20 is arranged along the second direction.

[0043] Preferably, the first direction is the X-axis direction, and the second direction is the Y-axis direction.

[0044] Referring to Figure 1 The arrangement direction of the straight cooling plate unit 10 and the arrangement direction of the straight cooling plate joint 20 are such that the straight cooling plate joint 20 can be stacked above or below the straight cooling plate unit 10, improving the utilization of vertical space, thereby avoiding the straight cooling plate joint 20 occupying the circumferential side space of the straight cooling plate unit 10, so that the overall structure of the straight cooling plate cooling structure is more reasonable and compact.

[0045] In the embodiment of the utility model, two connecting pipe units 202 are arranged between two adjacent straight cooling plate units 201, and the two connecting pipe units 202 arranged between the two straight cooling plate units 201 constitute a connecting pipe unit.

[0046] Specifically, the inside of the refrigerant introduction channel 203 is provided with an internal thread, and the outside of the connecting pipe unit 202 for introducing refrigerant is provided with an external thread, which are matched with each other.

[0047] Specifically, the refrigerant is a refrigerant that produces a freezing effect, which flows between the straight cooling plate unit 201 and the straight cooling plate joint 20, thereby achieving cooling of the battery cell.

[0048] In the embodiment of the utility model, the straight cooling plate cooling structure further comprises a connecting unit 30, and the straight cooling plate unit 10 and the straight cooling plate joint 20 are in communication through the connecting unit 30.

[0049] In the embodiment of the utility model, the inside of the direct cooling plate unit 10 is provided with a containing cavity for containing refrigerant; the connecting unit 30 includes a first pipe body 301 and a second pipe body 302, one end of the first pipe body 301 is in intercommunication with the containing cavity of the direct cooling plate unit 10, the other end of the first pipe body 301 is in intercommunication with the refrigerant introduction channel 203, one end of the second pipe body 302 is in intercommunication with the containing cavity of the direct cooling plate unit 10, the other end of the second pipe body 302 is in intercommunication with the refrigerant extraction channel 204.

[0050] Specifically, the first pipe body 301 and the second pipe body 302 are both arranged on the direct cooling plate unit 10, and one end of the first pipe body 301 and one end of the second pipe body 302 are both connected and fixed with the direct cooling plate unit 10 or integrally formed, the other end of the first pipe body 301 and the other end of the second pipe body 302 are both plugged into the direct cooling plate monomer 201, at this time, the direct cooling plate monomer 201 is provided with connecting holes for plugging into the first pipe body 301 and the second pipe body 302 at the corresponding positions.

[0051] Or, the first pipe body 301 and the second pipe body 302 are both arranged on the direct cooling plate monomer 201, and one end of the first pipe body 301 and one end of the second pipe body 302 are both connected and fixed with the direct cooling plate monomer 201 or integrally formed, the other end of the first pipe body 301 and the other end of the second pipe body 302 are both plugged into the direct cooling plate unit 10, at this time, the direct cooling plate unit 10 is provided with connecting holes for plugging into the first pipe body 301 and the second pipe body 302 at the corresponding positions.

[0052] Or, the first pipe body 301 is arranged on the direct cooling plate unit 10, and one end of the first pipe body 301 is connected and fixed with the direct cooling plate unit 10 or integrally formed, the other end of the first pipe body 301 is plugged into the direct cooling plate monomer 201, and the direct cooling plate monomer 201 is provided with connecting holes for plugging into the first pipe body 301 at the corresponding positions; the second pipe body 302 is arranged on the direct cooling plate monomer 201, and one end of the second pipe body 302 is connected and fixed with the direct cooling plate monomer 201 or integrally formed, the other end of the second pipe body 302 is plugged into the direct cooling plate unit 10, and the direct cooling plate unit 10 is provided with connecting holes for plugging into the second pipe body 302 at the corresponding positions.

[0053] Or, the first pipe body 301 is arranged on the direct cooling plate monomer 201, and one end of the first pipe body 301 is connected and fixed with the direct cooling plate monomer 201 or is integrally formed, and the other end of the first pipe body 301 is inserted with the direct cooling plate unit 10, and the direct cooling plate unit 10 is provided with a connecting hole for inserting the first pipe body 301 at the corresponding position; the second pipe body 302 is arranged on the direct cooling plate unit 10, and one end of the second pipe body 302 is connected and fixed with the direct cooling plate unit 10 or is integrally formed, and the other end of the second pipe body 302 is inserted with the direct cooling plate monomer 201, and the direct cooling plate monomer 201 is provided with a connecting hole for inserting the second pipe body 302 at the corresponding position.

[0054] It can be seen that the specific connection and fixing positions of the first pipe body 301 and the second pipe body 302 are selected according to the actual application scene, and are not limited.

[0055] In the embodiment of the utility model, a single direct cooling plate unit 10 corresponds to a row of battery cells, and the row of battery cells includes a plurality of interval arranged battery cell monomers, and the direct cooling plate unit 10 is arranged in a snake shape along the up-down direction between the plurality of interval arranged battery cell monomers.

[0056] Compared with only using a single straight plate-shaped cooling plate, the cooling effect of using a plurality of snake-shaped direct cooling plate units 10 to cool a plurality of rows of battery cells is better, and local overheating can be avoided.

[0057] In the embodiment of the utility model, the outer surface of the direct cooling plate unit 10 is provided with an insulating adhesive layer 40, and the direct cooling plate unit 10 is connected and fixed with the battery cell monomer through the insulating adhesive layer 40.

[0058] Specifically, the insulating adhesive layer 40 includes a heat-conducting adhesive, and the insulating adhesive layer 40 has the functions of insulation and heat conduction.

[0059] Embodiment 2

[0060] In the embodiment of the utility model, different from embodiment 1 is that the direct cooling plate monomer 201 and the connecting pipe monomer 202 are nested and inserted.

[0061] In order to improve the sealing property between the direct cooling plate monomer 201 and the connecting pipe monomer 202, interference fit is adopted between the direct cooling plate monomer 201 and the connecting pipe monomer 202.

[0062] Embodiment 3

[0063] In the embodiment of the utility model, different from embodiment 1 is that the direct cooling plate monomer 201 and the connecting pipe monomer 202 are connected through buckling.

[0064] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A direct cold plate cooling structure, characterized by, include: At least two direct cooling plate units, the direct cooling plate units being used to cool the battery cells; A direct cooling plate connector, through which two of the direct cooling plate units are interconnected; The direct cooling plate joint includes a direct cooling plate unit and a connecting pipe unit. The direct cooling plate unit and the connecting pipe unit are detachably connected and interconnected. The distance between the direct cooling plate unit and the connecting pipe unit is adjustable.

2. The direct cold plate cooling structure of claim 1, wherein: The direct cooling plate unit and the connecting pipe unit are connected by threads.

3. The cold plate cooling structure of claim 1, wherein: The direct cooling plate unit and the connecting pipe unit are nested and inserted together.

4. The cold plate cooling structure of claim 1, wherein: The direct cooling plate unit and the connecting pipe unit are connected by snap-fit.

5. The cold plate cooling structure according to any one of claims 1 to 4, characterized by: The plurality of the direct cooling plate units are arranged in parallel to each other, the direct cooling plate units extend along a first direction, and the direct cooling plate joints extend along a second direction; The first direction is perpendicular or substantially perpendicular to the second direction.

6. The cold plate cooling structure according to any one of claims 1 to 4, characterized by: Two connecting pipe units are provided between two adjacent direct cooling plate units, and the two connecting pipe units provided between the two direct cooling plate units constitute a connecting pipe unit; In the connecting pipe unit, one connecting pipe unit is used to introduce refrigerant, and the other connecting pipe unit is used to exit refrigerant; The direct cooling plate unit is provided with a refrigerant inlet channel and a refrigerant outlet channel inside. The refrigerant inlet channel is interconnected with the connecting pipe unit used for introducing refrigerant, and the refrigerant outlet channel is interconnected with the connecting pipe unit used for discharging refrigerant.

7. The cold plate cooling structure of claim 6, wherein: It also includes a connecting unit, through which the direct cooling plate unit is interconnected with the direct cooling plate connector.

8. The cold plate cooling structure of claim 7, wherein: The direct cooling plate unit has an internal cavity for containing refrigerant. The connecting unit includes a first tube and a second tube. One end of the first tube is connected to the accommodating cavity of the direct cooling plate unit, and the other end of the first tube is connected to the refrigerant inlet channel. One end of the second tube is connected to the accommodating cavity of the direct cooling plate unit, and the other end of the second tube is connected to the refrigerant outlet channel.

9. The cold plate cooling structure of any one of claims 1-4, wherein: Each of the direct cooling plate units corresponds to a row of battery cells, and a row of battery cells includes multiple spaced-apart battery cell units. The direct cooling plate units are arranged in a serpentine shape along the vertical direction between the multiple spaced-apart battery cell units.

10. The cold plate cooling structure of claim 9, wherein: An insulating adhesive layer is provided on the outer surface of the direct cooling plate unit, and the direct cooling plate unit is connected and fixed to the battery cell through the insulating adhesive layer.

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