Liquid cooling plate structure with uniform heat dissipation performance for battery pack

Abstract

The utility model discloses a battery pack liquid cooling plate structure with uniform heat dissipation performance, which comprises a lower liquid cooling plate, an auxiliary flow channel and a protection frame, the top surface of the lower liquid cooling plate is provided with a main flow channel and an auxiliary flow channel, an upper liquid cooling plate is arranged above the lower liquid cooling plate, and the protection frame and a protection rod are arranged on the outer sides of the lower liquid cooling plate and the upper liquid cooling plate. A connecting plate is installed on the outer side of the protection frame, longitudinal third fixing holes are formed in the lower liquid cooling plate and the upper liquid cooling plate, the lower liquid cooling plate and the upper liquid cooling plate are fixedly connected with the protection frame and the protection rod through bolts, and the auxiliary flow channel comprises a first flow channel and a second flow channel; and the first flow channel and the second flow channel are arranged in the top end wall of the lower liquid cooling plate. According to the liquid cooling plate structure with the uniform heat dissipation performance for the battery pack, the heat dissipation uniformity is improved through the auxiliary flow channels, the lower liquid cooling plate and the upper liquid cooling plate can be quickly and fixedly connected through the protection frame and the protection rod, and meanwhile, the side edges of the lower liquid cooling plate and the upper liquid cooling plate can be protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack liquid cooling plate technical field, concretely is a kind of liquid cooling plate structure of battery pack uniform heat dissipation performance. BACKGROUND

[0002] Battery pack liquid cooling plate structure is a kind of key component for battery pack (especially large-capacity battery pack used in electric vehicles etc.) thermal management. It is mainly through the circulation of cooling liquid in internal flow channel, carries away the heat generated by battery, so as to maintain the battery pack in the appropriate working temperature range of a kind of heat sink.

[0003] Referring to Chinese patent authorized announcement No.CN222190881U, authorized announcement date is December 17, 2024, a kind of liquid cooling plate structure of battery pack uniform heat dissipation performance is disclosed, including liquid cooling plate, flow channel, cooling medium inlet, cooling medium outlet, first flow channel, second flow channel, third flow channel, fourth flow channel, first turn flow channel, second turn flow channel, third turn flow channel, spoiler element, bionic head, bionic tail, horizontal support structure, vertical support structure, traditional liquid cooling plate is all used uniform symmetrical structure, cooling medium in cold plate flow channel each place heat absorption amount is inconsistent, leading to the temperature difference of lithium battery is larger, and the liquid cooling plate provided by the utility model has the characteristics of improving heat dissipation performance, and the characteristics of preventing system pressure loss increase significantly, can effectively improve the turbulent intensity of cooling medium in liquid cooling plate flow channel, destroy thermal boundary layer, reduce thermal resistance, improve the uniform heat dissipation effect of cooling medium on the whole flow process, to further improve the uniformity of battery system.

[0004] However, the uniform heat dissipation performance of the existing battery pack uniform heat dissipation performance of liquid cooling plate structure needs to be improved, and does not have protection structure, for example, the above-mentioned comparative patent has this problem; Therefore, we propose a kind of liquid cooling plate structure of battery pack uniform heat dissipation performance, to solve the problems raised in the above. Utility model content

[0005] The utility model aims at providing a kind of liquid cooling plate structure of battery pack uniform heat dissipation performance, to solve the problems of the existing battery pack uniform heat dissipation performance of liquid cooling plate structure in the above background technique needs to be improved, and does not have protection structure.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of liquid cooling plate structure of battery pack uniform heat dissipation performance, including lower liquid cooling plate, auxiliary channel and protection frame, the lower liquid cooling plate top is equipped with main channel and auxiliary channel, the lower liquid cooling plate top is equipped with upper liquid cooling plate, the lower liquid cooling plate and upper liquid cooling plate outer side are equipped with protection frame and protection pole, the protection frame outer side is equipped with connecting plate, the lower liquid cooling plate and upper liquid cooling plate are equipped with the third fixed hole of longitudinal in, and the lower liquid cooling plate and upper liquid cooling plate are fixedly connected with protection frame and protection pole by bolt.

[0007] Preferably, the auxiliary channel includes a first channel and a second channel, and the first channel and the second channel are both arranged in the top end wall of the lower liquid cooling plate.

[0008] Preferably, the first channel and the second channel are both communicated with the main channel, and the first channel is vertically connected with the main channel.

[0009] Preferably, the second channel is obliquely connected with the main channel.

[0010] Preferably, the protection frame includes a frame body, a first connecting groove and a first fixed hole, and the first connecting groove is arranged in the frame body.

[0011] Preferably, a plurality of first fixed holes are arranged in the wall of the frame body in a longitudinal direction, and the first fixed holes have the same size as the third fixed holes.

[0012] Preferably, the frame body is fixedly connected with a connecting plate at an end away from the first connecting groove.

[0013] Preferably, the protection pole includes a pole body, a second connecting groove and a second fixed hole, and the second connecting groove is arranged in the pole body.

[0014] Preferably, a plurality of second fixed holes are arranged in the wall of the pole body in a longitudinal direction, and the second fixed holes have the same size as the third fixed holes.

[0015] Preferably, the second fixed holes, the third fixed holes and the first fixed holes are fixedly connected by bolts.

[0016] Compared with the prior art, the liquid cooling plate structure of battery pack uniform heat dissipation performance has the following advantages: the auxiliary channel improves the uniformity of heat dissipation, the protection frame and the protection pole can quickly fix and connect the lower liquid cooling plate and the upper liquid cooling plate, and can protect the side edges of the lower liquid cooling plate and the upper liquid cooling plate.

[0017] 1. The auxiliary channel, the first channel and the second channel are all arranged in the top end wall of the lower liquid cooling plate, the first channel and the second channel are both communicated with the main channel, the first channel is vertically connected with the main channel, and the first channel and the second channel extend from the left and right ends of the lower liquid cooling plate;

[0018] Further, the second flow channel is obliquely connected with the main flow channel, and extends to four corners of the liquid cooling plate downward, and the first flow channel and the second flow channel have short flow paths and small flow resistance, so that heat dissipation is more uniform.

[0019] 2. The lower liquid cooling plate and the upper liquid cooling plate are arranged in the first connecting groove at left and right sides and rear ends, the first fixed hole and the third fixed hole are the same in size, the first fixed hole is aligned with the third fixed hole, and the bolt is used for fixing;

[0020] Further, the lower liquid cooling plate and the upper liquid cooling plate are arranged in the second connecting groove at front ends, the second fixed hole and the third fixed hole are the same in size, the second fixed hole is aligned with the third fixed hole, and the bolt is used for fixing;

[0021] Further, the lower liquid cooling plate is provided with a pipeline outside, and the protection rod is cut according to the size of the pipeline, so that the pipeline is bypassed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the main flow channel and the auxiliary flow channel of the utility model respectively.

[0023] Figure 2 It is a structure schematic view of the utility model from the top.

[0024] Figure 3 It is a structure schematic view of the utility model from the top.

[0025] Figure 4 It is a structure schematic view of the utility model from the top.

[0026] Figure 5 It is a structure schematic view of the utility model from the top.

[0027] Figure 6 It is a structure schematic view of the utility model from the top.

[0028] In the drawing: 1, lower liquid cooling plate; 2, main flow channel; 3, auxiliary flow channel; 301, first flow channel; 302, second flow channel; 4, upper liquid cooling plate; 5, protection frame; 501, frame body; 502, first connecting groove; 503, first fixed hole; 6, protection rod; 601, rod body; 602, second connecting groove; 603, second fixed hole; 7, third fixed hole; 8, connecting plate; 9, bolt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] Please refer to Figures 1-6 The present application provides the following technical solutions:

[0031] Embodiment one: the heat dissipation uniformity of the existing battery pack liquid cooling plate structure needs to be improved, in order to solve this technical problem, the embodiment discloses the following technical content:

[0032] A liquid cooling plate structure with uniform heat dissipation performance for a battery pack, comprising a lower liquid cooling plate 1, an auxiliary flow channel 3 and a protection frame 5, the lower liquid cooling plate 1 is provided with a main flow channel 2 and an auxiliary flow channel 3 on the top surface, an upper liquid cooling plate 4 is arranged above the lower liquid cooling plate 1, protection frames 5 and protection rods 6 are arranged outside the lower liquid cooling plate 1 and the upper liquid cooling plate 4, a connecting plate 8 is installed outside the protection frame 5, third fixing holes 7 are arranged longitudinally in the lower liquid cooling plate 1 and the upper liquid cooling plate 4, and the lower liquid cooling plate 1 and the upper liquid cooling plate 4 are fixedly connected with the protection frame 5 and the protection rod 6 through bolts 9;

[0033] As shown in Figure 1 and Figure 4 , the lower liquid cooling plate 1 is provided with a main flow channel 2 and an auxiliary flow channel 3 on the top surface, the auxiliary flow channel 3 comprises a first flow channel 301 and a second flow channel 302, the first flow channel 301 and the second flow channel 302 are arranged in the top end wall of the lower liquid cooling plate 1, the first flow channel 301 and the second flow channel 302 are communicated with the main flow channel 2, the first flow channel 301 is connected with the main flow channel 2 perpendicularly, and extends to the left and right ends of the lower liquid cooling plate 1, the second flow channel 302 is connected with the main flow channel 2 obliquely, and extends to the four corners of the lower liquid cooling plate 1, and the first flow channel 301 and the second flow channel 302 have short flow paths and small flow resistance, so that the heat dissipation is more uniform;

[0034] Embodiment two: the existing liquid cooling plate structure does not have a protection structure, and is easily damaged by external impact, in order to solve this technical problem, the embodiment discloses the following technical content:

[0035] As shown in Figures 2-6As shown, the lower liquid cooling plate 1 and the upper liquid cooling plate 4 are provided with a protective frame 5 and a protective rod 6 outside, the protective frame 5 comprises a frame body 501, a first connecting groove 502 and a first fixing hole 503, a plurality of longitudinal third fixing holes 7 are arranged in the wall of the lower liquid cooling plate 1 and the upper liquid cooling plate 4, the upper liquid cooling plate 4 is placed above the lower liquid cooling plate 1, and the two third fixing holes 7 are aligned, the first connecting groove 502 is arranged in the frame body 501, the left and right sides and the rear end of the lower liquid cooling plate 1 and the upper liquid cooling plate 4 are arranged in the first connecting groove 502, a plurality of longitudinal first fixing holes 503 are arranged in the wall of the frame body 501, the first fixing holes 503 are the same size as the third fixing holes 7, the first fixing holes 503 are aligned with the third fixing holes 7, and the bolts 9 are used for fixing, the protective rod 6 comprises a rod body 601, a second connecting groove 602 and a second fixing hole 603, the second connecting groove 602 is arranged in the rod body 601, the front end of the lower liquid cooling plate 1 and the upper liquid cooling plate 4 is located in the second connecting groove 602, a plurality of longitudinal second fixing holes 603 are arranged in the wall of the rod body 601, the second fixing holes 603 are the same size as the third fixing holes 7, the second fixing holes 603 are aligned with the third fixing holes 7, and the bolts 9 are used for fixing, the pipeline passes through the outside of the lower liquid cooling plate 1, so the protective rod 6 is cut according to the size of the pipeline, so as to bypass the pipeline;

[0036] When the frame body 501 is disassembled, the bolts 9 are disassembled, the frame body 501 is pulled upwards, so that the lower liquid cooling plate 1 and the upper liquid cooling plate 4 are separated from the first connecting groove 502, and the protective rod 6 can be disassembled by disassembling the bolts 9 and taking away the protective rod 6;

[0037] Working principle: according to the second embodiment, the frame body 501 is installed after the frame body 501 is installed, and the frame body 501 is fixedly connected with the connecting plate 8 away from the first connecting groove 502, a plurality of longitudinal screw holes are arranged in the wall of the connecting plate 8, the connecting plate 8 is connected with other parts through screws, and the upper liquid cooling plate 4 can reduce the risk of cooling liquid leakage.

[0038] The above completes a series of operations of the liquid cooling plate structure of the battery pack uniform heat dissipation performance, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0039] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0040] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid cooling plate structure for uniform heat dissipation performance of a battery pack, comprising a lower liquid cooling plate (1), an auxiliary flow channel (3) and a protective frame (5), characterized in that: the lower liquid cooling plate (1) is provided with a main flow channel (2) and an auxiliary flow channel (3) on the top surface, an upper liquid cooling plate (4) is arranged above the lower liquid cooling plate (1), a protective frame (5) and a protective rod (6) are arranged outside the lower liquid cooling plate (1) and the upper liquid cooling plate (4), a connecting plate (8) is mounted outside the protective frame (5), third fixing holes (7) are arranged longitudinally in the lower liquid cooling plate (1) and the upper liquid cooling plate (4), and the lower liquid cooling plate (1) and the upper liquid cooling plate (4) are fixedly connected with the protective frame (5) and the protective rod (6) by bolts (9).

2. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 1, characterized in that: The auxiliary flow channel (3) comprises a first flow channel (301) and a second flow channel (302), and the first flow channel (301) and the second flow channel (302) are arranged in the top end wall of the lower liquid cooling plate (1).

3. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 2, characterized in that: The first flow channel (301) and the second flow channel (302) are communicated with the main flow channel (2), and the first flow channel (301) is connected with the main flow channel (2) perpendicularly.

4. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 2, characterized in that: The second flow channel (302) is connected with the main flow channel (2) obliquely.

5. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 1, characterized in that: The protective frame (5) comprises a frame body (501), a first connecting groove (502) and a first fixing hole (503), and the first connecting groove (502) is arranged in the frame body (501).

6. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 5, characterized in that: A plurality of first fixing holes (503) are arranged longitudinally in the wall of the frame body (501), and the first fixing holes (503) have the same size as the third fixing holes (7).

7. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 5, characterized in that: The frame body (501) is fixedly connected with the connecting plate (8) at one end away from the first connecting groove (502).

8. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 1, characterized in that: The protective rod (6) comprises a rod body (601), a second connecting groove (602) and a second fixing hole (603), and the second connecting groove (602) is arranged in the rod body (601).

9. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 8, characterized in that: A plurality of second fixing holes (603) are arranged longitudinally in the wall of the rod body (601), and the second fixing holes (603) have the same size as the third fixing holes (7).

10. The liquid cooling plate structure for uniform heat dissipation performance of a battery pack according to claim 8, characterized in that: The second fixing holes (603), the third fixing holes (7) and the first fixing holes (503) are fixedly connected by bolts (9).

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