Liquid cooling support for vehicle-mounted PACK battery and battery pack

Abstract

The utility model discloses a liquid cooling support for a vehicle-mounted PACK battery and a battery pack, and relates to the technical field of battery packs, the liquid cooling support comprises a liquid cooling plate, bottom supports, first connecting pieces and a supporting assembly, one side of the liquid cooling plate is provided with a plurality of bottom supports, the bottom supports are provided with the first connecting pieces for connecting battery modules, and the first connecting pieces are connected with the supporting assembly. And the other side of the liquid cooling plate is provided with a plurality of supporting assemblies. The liquid cooling support is formed by the liquid cooling plate, the bottom support, the first connecting piece and the supporting assembly, so that the liquid cooling support has good bearing performance and good heat dissipation performance, and the bottom support, the first connecting piece and the supporting assembly are integrated on the liquid cooling plate, so that the liquid cooling support is small in size, light in weight and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a liquid cooling bracket and a battery pack for a vehicle-mounted PACK battery. Background Art

[0002] The PACK battery pack is mainly composed of the box, batteries, electrical parts and other main components. The bracket plays the role of supporting and fixing other components. The design of the bracket is one of the important factors in the entire product design. For the structural design of the PACK battery pack, in order to obtain higher energy density, how to design a highly integrated multifunctional bracket that has a certain structural strength and can serve as a liquid cooling plate in a space environment with limited box height is one of the key technologies.

[0003] In the prior art, in order to achieve the support, fixation and heat dissipation of the upper battery module, the commonly used design method is to mainly rely on the bracket to fix the support module, and then design a liquid cooling plate between the battery module and the bracket to achieve heat dissipation. The premise of this method is that the height of the shell is high enough and there is enough space to place the bracket and the liquid cooling plate. However, in some complex environments, such as when the height of the box is not allowed, this design method cannot meet practical needs. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid cooling bracket for a vehicle-mounted PACK battery, so as to solve the above-mentioned technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A liquid cooling bracket for a vehicle-mounted PACK battery comprises a liquid cooling plate, a base, a first connecting piece and a supporting assembly, wherein one side of the liquid cooling plate is provided with a plurality of the bases, the base is provided with the first connecting piece for connecting a battery module, and the other side of the liquid cooling plate is provided with a plurality of the supporting assemblies.

[0007] Preferably, a second connecting member is further included, and each of the base brackets is respectively provided with a plurality of first mounting holes and a plurality of second mounting holes, the first connecting member is arranged in the first mounting hole, and the second connecting member is arranged in the second mounting hole.

[0008] Preferably, a liquid cooling channel is provided inside the liquid cooling plate.

[0009] Preferably, the liquid cooling plate comprises a plurality of profiles, and two adjacent profiles are connected to each other.

[0010] As a further preference, it also includes a plurality of first baffles, and a plurality of the first baffles are provided at one end of the plurality of profiles.

[0011] As a further preference, it also includes a plurality of second baffles, and the other ends of the plurality of profiles are provided with a plurality of the second baffles.

[0012] As a further preference, it also includes a threaded steel sleeve, and the threaded steel sleeve is arranged in the first mounting hole.

[0013] Preferably, it further comprises a water nozzle, and the water nozzle is arranged on the liquid cooling plate.

[0014] Preferably, the supporting assembly includes pads, and a plurality of the pads are provided on the other side of the liquid cooling plate facing the base.

[0015] A battery pack, characterized in that it includes a battery pack box and a battery module on the battery pack box, and the liquid cooling bracket is used to connect the battery module.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the utility model, a liquid cooling bracket is formed by a liquid cooling plate, a base, a first connecting member and a supporting assembly, so that the liquid cooling bracket has good load-bearing performance and good heat dissipation performance, and the base, the first connecting member and the supporting assembly are integrated on the liquid cooling plate, which is small in size, light in weight and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the liquid cooling bracket for the vehicle PACK battery in the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the liquid cooling bracket for the vehicle PACK battery in the utility model. Figure 2 ;

[0020] Figure 3 It is a structural schematic diagram of a liquid cooling channel of a liquid cooling bracket for a vehicle-mounted PACK battery in the utility model;

[0021] Figure 4 It is an exploded schematic diagram of a liquid cooling bracket for a vehicle-mounted PACK battery in the utility model;

[0022] Figure 5 This is a diagram of the use state of the liquid cooling bracket for the vehicle-mounted PACK battery in the utility model;

[0023] Figure 6 It is an exploded view of the use state of the liquid cooling bracket for the vehicle-mounted PACK battery in the utility model.

[0024] In the figure: 1. liquid cooling plate; 101. first profile; 102. second profile; 103. third profile; 104. liquid cooling channel; 2. bottom bracket; 3. first connecting piece; 4. supporting assembly; 5. upper battery module; 6. lower battery module; 7. battery pack box; 8. second connecting piece; 9. first mounting hole; 10. second mounting hole; 11. first baffle; 12. second baffle; 13. screw steel sleeve; 14. faucet; 15. liquid cooling bracket. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Figure 1 This is a schematic diagram of the structure of the liquid cooling bracket for the vehicle PACK battery in the utility model. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the liquid cooling bracket for the vehicle PACK battery in the utility model. Figure 2 ; Figure 3 It is a structural schematic diagram of a liquid cooling channel of a liquid cooling bracket for a vehicle-mounted PACK battery in the utility model;

[0030] Figure 4 It is an exploded schematic diagram of a liquid cooling bracket for a vehicle-mounted PACK battery in the utility model; Figure 5 This is a diagram of the use state of the liquid cooling bracket for the vehicle-mounted PACK battery in the utility model; Figure 6 This is an exploded view of the use state of the liquid cooling bracket for vehicle-mounted PACK batteries in the utility model. Figures 1 to 6 As shown, a preferred embodiment is shown, which shows a liquid cooling bracket for a vehicle-mounted PACK battery, including a liquid cooling plate 1, a bottom bracket 2, a first connecting member 3 and a supporting assembly 4. A plurality of bottom brackets 2 are provided on one side of the liquid cooling plate 1, and a first connecting member 3 for connecting a battery module is provided on the bottom bracket 2. A plurality of supporting assemblies 4 are provided on the other side of the liquid cooling plate 1. In this embodiment, see Figure 1 As shown, the bottom bracket 2 is arranged at the upper end of the liquid cooling plate 1 for cooperating with the upper battery module 5, and the support assembly 4 is arranged at the lower end of the liquid cooling plate 1 for cooperating with the lower battery module 6. Among them, a liquid cooling channel 104 is provided inside the liquid cooling plate 1 to take away the heat generated by the upper battery module 5 and the lower battery module 6. The battery module in this embodiment includes an upper battery module 5 and a lower battery module 6, wherein the upper battery module 5 is arranged at the upper end of the liquid cooling plate 1, and the lower battery module 6 is arranged at the lower end of the liquid cooling plate 1. The first connecting member 3 can be a screw, which is used to connect the liquid cooling bracket 15 and the lower battery module 6 to the battery pack box 7. During use, first place the lower battery module 6 in the pre-installed position on the battery pack case 7, then place the support assembly 4 at the lower end of the liquid cooling plate 1 into the groove at the upper end of the lower battery module 6, so that the liquid cooling plate 1 fits against the upper end of the lower battery module 6, and then pass the first connecting member 3 through the bottom bracket 2, the liquid cooling plate 1 and the lower battery module 6 and connect with the threaded holes on the battery pack case 7, so as to realize the installation between the liquid cooling bracket 15, the lower battery module 6 and the battery pack case 7, and then place the upper battery module 5 on the upper end of the liquid cooling plate 1, so that the bottom bracket 2 enters the groove at the lower end of the upper battery module 5, so that the lower end of the upper battery module 5 contacts the upper end of the liquid cooling plate 1, and then connect the upper battery module 5 to the liquid cooling bracket 15 through the second connecting member 8 (screw).

[0031] Further, as a preferred embodiment, it also includes a second connecting member 8, each base 2 is respectively provided with a plurality of first mounting holes 9 and a plurality of second mounting holes 10, the first connecting member 3 is arranged in the first mounting hole 9, and the second connecting member 8 is arranged in the second mounting hole 10. Figure 6 As shown, the upper battery module 5 is provided with a hole for the second connector 8 to pass through, and the lower battery module 6 is provided with a hole for the first connector 3 to pass through. The second connector 8 passes through the upper battery module 5 and is connected to the second mounting hole 10 on the bottom bracket 2. The second mounting hole 10 can be a threaded hole. Figure 6As shown, a second mounting hole 10 is respectively provided on one side of each first mounting hole 9 .

[0032] Further, as a preferred embodiment, the liquid cooling plate 1 includes a plurality of profiles, and two adjacent profiles are connected to each other. The liquid cooling plate 1 is divided into three sections, including a first profile 101, a second profile 102, and a third profile 103 connected in sequence by stir friction welding. The liquid cooling channel 104 is distributed in the first profile 101, the second profile 102, and the third profile 103, and the first connector 3 and the second connector 8 are respectively arranged away from the liquid cooling channel 104.

[0033] Further, as a preferred embodiment, it also includes a plurality of first baffles 11, and a plurality of first baffles 11 are provided at one end of the plurality of profiles. There are three first baffles 11, which are connected and fixed to one end of the first profile 101, the second profile 102 and the third profile 103 by TIG welding (non-melting inert gas shielded arc welding). For details, see Figure 1 shown.

[0034] Further, as a preferred embodiment, it further comprises a plurality of second baffles 12, and the other ends of the plurality of profiles are provided with a plurality of second baffles 12. There are four second baffles 12, and all of them are connected and fixed to the other ends of the first profile 101, the second profile 102 and the third profile 103 by TIG welding (non-melting inert gas shielded arc welding). For details, see Figure 4 shown.

[0035] Further, as a preferred embodiment, it further comprises a threaded steel sleeve 13, and the threaded steel sleeve 13 is arranged in the first mounting hole 9. Figure 4 As shown, the threaded steel sleeve 13 is disposed in the first mounting hole 9 on the base 2 for cooperating with the first connecting member 3 .

[0036] Further, as a preferred embodiment, a water nozzle 14 is further included, and a water nozzle 14 is provided on the liquid cooling plate 1. The water nozzle 14 is arranged at the upper end of the liquid cooling plate 1 by welding, wherein the water nozzle 14 is arranged away from the upper battery module 5, and two water nozzles 14 are provided, which are used for connecting the water inlet and the water outlet of the liquid cooling channel 104, so as to facilitate the circulation and pumping of coolant into the liquid cooling channel 104, and can take away the heat generated by the upper battery module 5 and the lower battery module 6, and achieve the effect of heat dissipation.

[0037] Further, as a preferred embodiment, the support assembly 4 includes a pad, and a plurality of pads are provided on the other side of the liquid cooling plate 1 facing the bottom bracket 2. The pad has a certain elasticity and can play a buffering role. The depth of the notch on the lower battery module 6 that cooperates with the pad can be slightly smaller than the longitudinal height of the pad. When the upper battery module 5 is placed, the lower end of the liquid cooling plate 1 is in contact with the upper end of the lower battery module 6 under the action of the gravity of the upper battery module 5.

[0038] In this embodiment, a liquid cooling bracket 15 is formed by integrating the base 2, the cushion block, the first baffle 11, the second baffle 12, the first connecting member 3 and the second connecting member 8 on the liquid cooling plate 1. The liquid cooling bracket 15 is small in size and has a certain rigidity, and has the functions of heat dissipation and support for the battery module.

[0039] The entire liquid cooling bracket 15 in this embodiment can be made of aluminum alloy, which has a certain rigidity and can reduce the weight of the liquid cooling bracket 15.

[0040] See also Figure 2 As shown, the first mounting hole 9 on the base 2 passes through the pad, so that the first connector 3 can connect the liquid cooling bracket 15, the lower battery module 6 and the battery pack box 7 together.

[0041] The liquid cooling bracket in this embodiment is used to be installed on a battery pack, which includes a battery pack box and a battery module on the battery pack box 7, and the liquid cooling bracket 15 is used to connect the battery module.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid cooling bracket for vehicle-mounted PACK battery, characterized in that: It includes a liquid cooling plate, a base, a first connecting member and a supporting assembly. One side of the liquid cooling plate is provided with a plurality of the bases, the base is provided with the first connecting member for connecting the battery module, and the other side of the liquid cooling plate is provided with a plurality of the supporting assemblies.

2. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 1, characterized in that: It also includes a second connecting member. Each of the base brackets is respectively provided with a plurality of first mounting holes and a plurality of second mounting holes. The first connecting member is arranged in the first mounting hole, and the second connecting member is arranged in the second mounting hole.

3. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 1, characterized in that: A liquid cooling channel is arranged inside the liquid cooling plate.

4. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 1, characterized in that: The liquid cooling plate comprises a plurality of profiles, and two adjacent profiles are connected to each other.

5. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 4, characterized in that: It also includes a plurality of first baffles, and one end of the plurality of profiles is provided with the plurality of first baffles.

6. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 4, characterized in that: It also includes a plurality of second baffles, and the other ends of the plurality of profiles are provided with a plurality of the second baffles.

7. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 2, characterized in that: It also includes a threaded steel sleeve, which is arranged in the first mounting hole.

8. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 1, characterized in that: It also includes a water nozzle, which is arranged on the liquid cooling plate.

9. The liquid cooling bracket for vehicle-mounted PACK battery according to claim 1, characterized in that: The support assembly includes a cushion block, and a plurality of the cushion blocks are disposed on the other side of the liquid cooling plate facing the base.

10. A battery pack, characterized in that: It includes a battery pack case and a battery module on the battery pack case, and also includes a liquid cooling bracket for a vehicle-mounted PACK battery as described in any one of claims 1-9, wherein the liquid cooling bracket is used to connect the battery module.

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