Battery box body

Abstract

The embodiment of the utility model provides a battery box body, and relates to the technical field of batteries. The battery box body comprises a mounting frame and a liquid cooling plate, the mounting rack is used for mounting the battery module and the electric appliance assembly. The liquid cooling plate is fixed on one side of the mounting frame and is used for being attached to the battery module and the electric appliance module. And a condensation cavity is formed in the liquid cooling plate. And a liquid inlet and a liquid outlet which are communicated with the condensation cavity are formed in the liquid cooling plate. And a first filtering piece is arranged on the liquid inlet. And a second filtering piece is arranged on the liquid outlet. The battery box body can effectively filter impurities flowing into the cooling flow channel from the outside or inside the cooling flow channel, and the impurities are prevented from repeatedly circulating in the flow channel, so that the impurities are prevented from damaging a pipeline or a water pump blade.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery housing. Background Technology

[0002] A battery system is typically composed of several stacked battery packs. To ensure the heat dissipation requirements of the batteries, the battery system is equipped with a thermal management unit, which dissipates heat from the battery packs through the flow of coolant.

[0003] The inventors discovered that due to the manufacturing process of the battery box, there are often residual aluminum shavings and impurities inside the coolant flow channels of the existing battery box. When these aluminum shavings and impurities flow in the coolant flow channels, they will cause pipe blockage or damage to the water pump blades. Utility Model Content

[0004] The purpose of this utility model is to provide a battery housing that can effectively filter out impurities flowing into or inside the cooling channel from the outside, preventing impurities from repeatedly flowing in the channel, thereby preventing impurities from damaging the pipes or water pump blades.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] This utility model provides a battery box, comprising:

[0007] Mounting bracket, used for mounting battery modules and electrical components;

[0008] A liquid cooling plate is fixed to one side of the mounting bracket for contact with the battery module and the electrical components. The liquid cooling plate has a condensation chamber inside and has an inlet and an outlet communicating with the condensation chamber. A first filter element is provided on the inlet and a second filter element is provided on the outlet.

[0009] In an optional embodiment, the first filter element includes a first filter screen, a first guide post, and a first liquid collection box. The first liquid collection box is fixedly disposed within the condensation chamber, the first guide post is fixedly disposed on the first liquid collection box, and the first filter screen is sleeved on the first guide post so that the first filter screen can enter the liquid inlet or move out of the liquid inlet and be located in the condensation chamber. The first filter screen has a plurality of first mesh holes, and the first liquid collection box is fixedly disposed with a plurality of first pins, the first pins corresponding to the first mesh holes. An elastic element is disposed between the first filter screen and the first liquid collection box.

[0010] In an optional embodiment, the first collection box is provided with multiple layers of collection plates for collecting impurities. Multiple collection plates are arranged at intervals, and each collection plate is provided with a fan-shaped hole. The fan-shaped holes on adjacent collection plates are staggered.

[0011] In an optional embodiment, a first ball head is provided at the end of the first guide post away from the first liquid collection box, and the first ball head is used to limit the first filter screen.

[0012] In an optional embodiment, the second filter element includes a second filter screen, a second guide post, and a second liquid collection box. The second liquid collection box is fixedly disposed within the condensation chamber, the second guide post is fixedly disposed on the second liquid collection box, and the second filter screen is sleeved on the second guide post so that the second filter screen can enter the liquid outlet or move out of the liquid outlet and into the condensation chamber. The second filter screen has a plurality of second mesh holes, and the second liquid collection box is fixedly disposed with a plurality of second pins, the second pins corresponding to the second mesh holes. A flange is provided around the second filter screen.

[0013] In an optional embodiment, the second collection box is provided with multiple layers of collection plates for collecting impurities. Multiple collection plates are arranged at intervals, and each collection plate is provided with a fan-shaped hole. The fan-shaped holes on adjacent collection plates are staggered.

[0014] In an optional embodiment, the liquid cooling plate is further provided with a bottom box corresponding to the first filter element and the second filter element. The bottom box is detachably connected to the liquid cooling plate to clean impurities.

[0015] In an optional embodiment, the condensation chamber is further provided with a plurality of partitions at intervals, the partitions dividing the condensation chamber into a plurality of flow channels, and one end of the partition is provided with a gap between it and the inner wall of the condensation chamber so as to allow communication between adjacent flow channels.

[0016] In an optional embodiment, a sealing plate is provided at the end of the liquid cooling plate, the sealing plate being used to seal the condensation chamber.

[0017] In an optional embodiment, the mounting bracket includes two longitudinal beams and three transverse beams. The longitudinal beams are respectively fixed to both ends of the liquid cooling plate, and the transverse beams are connected between the longitudinal beams. The transverse beams are spaced apart to form a battery module mounting area and an electrical component mounting area on the liquid cooling plate.

[0018] The beneficial effects of the battery box provided in this embodiment of the utility model include:

[0019] The battery housing of this utility model includes a mounting bracket and a liquid cooling plate. The mounting bracket is used to mount the battery module and electrical components. The liquid cooling plate is fixed to one side of the mounting bracket for contact with the battery module and electrical components. A condensation chamber is provided inside the liquid cooling plate. An inlet and an outlet communicating with the condensation chamber are provided on the liquid cooling plate. A first filter element is provided on the inlet. A second filter element is provided on the outlet. The battery module and electrical components are fixedly mounted by the mounting bracket. The liquid cooling plate is fixed on the mounting bracket for cooling the battery module and electrical components. By providing the first and second filters at the inlet and outlet of the liquid cooling plate, respectively, impurities flowing into or inside the cooling channel from the outside can be effectively filtered out, preventing impurities from repeatedly flowing in the channel, thereby preventing impurities from damaging the pipes or water pump blades. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the battery housing from a first-view perspective provided in this embodiment;

[0022] Figure 2 This is a schematic diagram of the structure of the first filter element provided in this embodiment;

[0023] Figure 3 This is a schematic diagram of the first state structure of the first filter element provided in this embodiment;

[0024] Figure 4 This is a schematic diagram of the second state structure of the first filter element provided in this embodiment;

[0025] Figure 5 This is a schematic diagram of the structure of the second filter element provided in this embodiment;

[0026] Figure 6 This is a schematic diagram of the first state structure of the second filter element provided in this embodiment;

[0027] Figure 7 This is a schematic diagram of the second state structure of the second filter element provided in this embodiment;

[0028] Figure 8 This is a structural schematic diagram of the battery housing provided in this embodiment from a second perspective;

[0029] Figure 9 This is a structural schematic diagram of the battery housing from a third-view perspective provided in this embodiment;

[0030] Figure 10 This is a structural schematic diagram of the battery box provided in this embodiment from a fourth perspective.

[0031] Icons: 100-Battery housing; 10-Mounting bracket; 11-Longitudinal beam; 12-Crossbeam; 13-Mounting hole; 14-Fixing hole; 15-Battery module mounting area; 16-Electrical component mounting area; 20-Liquid cooling plate; 21-Condensation chamber; 22-Baffle; 23-Sealing plate; 231-Plug; 232-Cover plate; 24-Liquid inlet; 25-Liquid outlet; 26-Base box; 30-First filter element; 31- First filter screen; 311-First mesh; 32-First guide post; 321-First ball head; 33-First collection box; 34-Collection plate; 341-Fan-shaped hole; 35-First ejector pin; 36-Elastic element; 40-Second filter element; 41-Second filter screen; 411-Second mesh; 412-Flanged edge; 42-Second guide post; 421-Second ball head; 43-Second collection box; 44-Second ejector pin. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0038] Please refer to Figure 1 The battery housing 100 provided by this utility model is used to install battery modules and electrical components, and to cool down the battery modules and electrical components.

[0039] The battery housing 100 includes a mounting bracket 10. The mounting bracket 10 is used to mount battery modules and electrical components. Specifically, the mounting bracket 10 has a frame structure. The mounting bracket 10 has several fixing holes 14 and mounting holes 13. The fixing holes 14 are used to fix the battery housing 100. The mounting holes 13 are used to fix the battery modules and electrical components.

[0040] The liquid cooling plate 20 is fixed to one side of the mounting bracket 10 for contact with the battery module and electrical components. A condensation chamber 21 is provided inside the liquid cooling plate 20. An inlet 24 and an outlet 25 communicating with the condensation chamber 21 are provided on the liquid cooling plate 20. A first filter element 30 is provided on the inlet 24. A second filter element 40 is provided on the outlet 25. It is understood that the liquid cooling plate 20 is fixed to the bottom of the mounting bracket 10. The mounting bracket 10 is used to surround and fix the battery module and electrical components. The bottoms of both the battery module and electrical components are in contact with the liquid cooling plate 20. Coolant circulates within the liquid cooling plate 20 to remove the heat generated by the battery module and electrical components during operation.

[0041] Furthermore, in this embodiment, the mounting bracket 10 includes two longitudinal beams 11 and three transverse beams 12. The longitudinal beams 11 are respectively fixed to both ends of the liquid cooling plate 20. The transverse beams 12 are connected between the longitudinal beams 11. The transverse beams 12 are spaced apart to form a battery module mounting area 15 and an electrical component mounting area 16 on the liquid cooling plate 20. It can be understood that two adjacent transverse beams 12 and the longitudinal beams 11 on both sides surround to form the battery module mounting area 15 or the electrical component mounting area 16.

[0042] Please refer to Figures 2-4 , Figure 2 This is a schematic diagram of the structure of the first filter element 30 in this embodiment. Figure 3 This is a schematic diagram of the first state structure of the first filter element 30 in this embodiment. Figure 4 This is a schematic diagram of the second state structure of the first filter element 30 in this embodiment.

[0043] The first filter element 30 includes a first filter screen 31, a first guide post 32, and a first liquid collection box 33. The first liquid collection box 33 is fixedly disposed within the condensation chamber 21. The first guide post 32 is fixedly disposed on the first liquid collection box 33. The first filter screen 31 is sleeved on the first guide post 32 so that the first filter screen 31 can enter the liquid inlet 24 or move out of the liquid inlet 24 and be located within the condensation chamber 21. It can be understood that the first filter screen 31 can move along the first guide post 32. When the first filter screen 31 is located within the liquid inlet 24, coolant enters the condensation chamber 21 through the first filter screen 31. When the first filter screen 31 is located within the condensation chamber 21, coolant enters the condensation chamber 21 through the gap between the first filter screen 31 and the liquid inlet 24. The first filter screen 31 has a plurality of first mesh holes 311. The first liquid collection box 33 is fixedly disposed with a plurality of first ejector pins 35. The first ejector pins 35 correspond to the first mesh holes 311. An elastic element 36 is provided between the first filter screen 31 and the first liquid collection box 33.

[0044] Specifically, in this embodiment, the first liquid collection box 33 is provided with multiple layers of collecting plates 34. The collecting plates 34 are used to collect impurities. Multiple collecting plates 34 are arranged at intervals. Each collecting plate 34 is provided with a fan-shaped hole 341. The fan-shaped holes 341 on adjacent collecting plates 34 are staggered. It can be understood that impurities enter the collecting plates 34 at the bottom of the first liquid collection box 33 under the high pressure impact of the external water flow. Since the liquid at the bottom of the first liquid collection box 33 does not have an impact force on the condensation chamber 21, impurities cannot enter the condensation chamber 21 from the bottom of the first liquid collection box 33 through the collecting plates 34.

[0045] Understandably, when external water flows into the condenser chamber 21 through the inlet 24, it passes through the first mesh 311 of the first filter screen 31. At this time, the first filter screen 31, under the action of the elastic element 36, moves away from the first collection box 33 and is located inside the inlet 24. The first filter screen 31 can filter impurities in the external water flow. As the external water flow continues to flow in, the impurities on the first filter screen 31 gradually increase, clogging the first mesh 311. When the first mesh 311 is clogged, the external water flow cannot pass through it, thus gradually increasing the impact force on the first filter screen 31. When the impact force of the external water flow on the first filter screen 31 exceeds the elastic force of the elastic element 36 on the first filter screen 31, the first filter screen 31 moves downward.

[0046] Specifically, the outer diameter of the first ejector pin 35 is slightly smaller than the diameter of the first mesh 311, so that the first ejector pin 35 can pass through the first filter screen 31. When the first ejector pin 35 pierces the upper first mesh 311, impurities within the first mesh 311 are removed. The impurities accumulate downwards in the first collection box 33. It can be understood that in this embodiment, the impurities are located on the side of the first filter screen 31 closest to the first collection box 33, and the outer diameter of the impurities is larger than the diameter of the first filter screen 31, so they will not be pushed to the other side of the first filter screen 31 by the first ejector pin 35. The impurities are removed from the first filter screen 31 by colliding with the first ejector pin 35.

[0047] Furthermore, as the first filter 31 moves downward, a gap is formed between the first filter 31 and the liquid inlet 24, allowing external water to enter the condensing chamber 21 through the gap. Since the external water enters the condensing chamber 21 at a certain angle, the water will bounce off the inner wall of the condensing chamber 21, thus disturbing the water flow in the first liquid collection box 33. The newly flowing coolant will squeeze out the liquid in the first liquid collection box 33 under high pressure, carrying impurities into the bottom of the first liquid collection box 33. Due to the obstruction of the collecting plate 34, the impurities cannot flow out and eventually sink to the bottom of the first liquid collection box 33.

[0048] Furthermore, a first ball head 321 is provided at the end of the first guide post 32 away from the first liquid collection box 33. The first ball head 321 is used to limit the first filter screen 31. It can be understood that the first filter screen 31 moves away from the first liquid collection box 33 under the action of the elastic member 36, and the first filter screen 31 abuts against the first ball head 321 to prevent the first filter screen 31 from disengaging from the first guide post 32.

[0049] Please refer to Figures 5-7 , Figure 5 This is a schematic diagram of the structure of the second filter element 40 in this embodiment. Figure 6 This is a schematic diagram of the first state structure of the second filter element 40 in this embodiment. Figure 7 This is a schematic diagram of the second state structure of the second filter element 40 in this embodiment.

[0050] The second filter element 40 includes a second filter screen 41, a second guide post 42, and a second collection box 43. The second collection box 43 is fixedly disposed within the condensation chamber 21. The second guide post 42 is fixedly disposed on the second collection box 43. The second filter screen 41 is sleeved on the second guide post 42 so that the second filter screen 41 can enter the liquid outlet 25 or move out of the liquid outlet 25 and be located within the condensation chamber 21. The second filter screen 41 has a plurality of second mesh holes 411. The second collection box 43 is fixedly disposed with a plurality of second pins 44. The second pins 44 correspond to the second mesh holes 411. The second filter screen 41 is surrounded by a flange 412.

[0051] It should be noted that the first filter element 30 and the second filter element 40 in this embodiment have roughly the same structure. The difference is that the first filter element 30 is provided with an elastic element 36, and the second filter screen 41 of the second filter element 40 is provided with a flange 412.

[0052] Understandably, the second filter screen 41 is made of a lightweight material with a lower density than the coolant, and typically floats on top of it. Normally, the coolant flows from the condenser chamber 21 to the outlet 25, passing through the second mesh 411 of the second filter screen 41. Under the impact of the coolant, the flange 412 of the second filter screen 41 abuts against the inner wall of the condenser chamber 21, preventing the second filter screen 41 from completely entering the outlet 25. When the outflowing coolant contains impurities, the second mesh 411 becomes clogged, preventing impurities inside the liquid cooling plate 20 from flowing into the external piping. As impurities accumulate on the second filter screen 41, its weight increases, reducing the upward impact force of the coolant, and the second filter screen 41 begins to sink under its own weight. When the second mesh 411 of the second filter screen 41 touches the second pin 44 below, it clears the impurities from the mesh 411, causing them to sink under gravity. The second filter screen 41 then floats back to its initial position.

[0053] Furthermore, the second collection box 43 is provided with multiple layers of collection plates 34. The collection plates 34 are used to collect impurities. Multiple collection plates 34 are arranged at intervals. Each collection plate 34 is provided with a fan-shaped hole 341. The fan-shaped holes 341 on adjacent collection plates 34 are staggered.

[0054] Furthermore, a second ball head 421 is provided at the end of the second guide post 42 away from the second collection box 43. The second ball head 421 is used to limit the second filter screen 41. Specifically, in this embodiment, the flange 412 is located on the side of the second filter screen 41 closer to the second collection box 43. The second ball head 421 is located on the side of the second filter screen 41 away from the second collection box 43. It should be noted that in this embodiment, when the flange 412 abuts against the inner wall of the condensation chamber 21, the second filter screen 41 and the second ball head 421 have not yet come into contact.

[0055] Please refer to Figure 8 In this embodiment, the liquid cooling plate 20 is further provided with a bottom box 26 corresponding to the first filter element 30 and the second filter element 40. The bottom box 26 is detachably connected to the liquid cooling plate 20 to clean impurities. Specifically, in this embodiment, the bottom box 26 is connected to the first liquid collection box 33 and the second liquid collection box 43.

[0056] Please refer to Figure 9In this embodiment, a plurality of baffles 22 are also provided inside the condensing cavity 21. The baffles 22 divide the condensing cavity 21 into a plurality of flow channels. One end of the baffle 22 is provided with a gap from the inner wall of the condensing cavity 21 to allow communication between adjacent flow channels. It can be understood that providing flow channels inside the condensing cavity 21 allows the coolant to flow evenly within the condensing cavity 21, thereby improving the heat dissipation effect.

[0057] Please refer to Figure 10 In this embodiment, a sealing plate 23 is provided at the end of the liquid cooling plate 20. The sealing plate 23 is used to seal the condensation chamber 21. Specifically, the sealing plate 23 includes a plug 231 and a cover plate 232. The plug 231 is fixedly connected to the cover plate 232. The sealing plate 23 is strip-shaped. The thickness of the plug 231 is the same as the thickness of the condensation chamber 21. The thickness of the cover plate 232 is the same as the thickness of the liquid cooling plate 20. The plug 231 is inserted into the condensation chamber 21 until the cover plate 232 abuts against the side wall of the liquid cooling plate 20, and the sealing plate 23 is welded and fixed to the liquid cooling plate 20, thereby sealing the condensation chamber 21.

[0058] The beneficial effects of the battery housing 100 provided in this embodiment of the present invention are:

[0059] The battery housing 100 of this utility model includes a mounting bracket 10 and a liquid cooling plate 20. The mounting bracket 10 is used to mount the battery module and electrical components. The liquid cooling plate 20 is fixed to one side of the mounting bracket 10 for contact with the battery module and electrical components. A condensation chamber 21 is provided inside the liquid cooling plate 20. An inlet 24 and an outlet 25 communicating with the condensation chamber 21 are provided on the liquid cooling plate 20. A first filter element 30 is provided on the inlet 24. A second filter element 40 is provided on the outlet 25. The battery module and electrical components are fixedly mounted by the mounting bracket 10. The liquid cooling plate 20 is fixed on the mounting bracket 10 for cooling the battery module and electrical components. By providing the first filter element 30 and the second filter element 40 at the inlet 24 and outlet 25 of the liquid cooling plate 20 respectively, impurities flowing into or inside the cooling channel from the outside can be effectively filtered out, preventing impurities from repeatedly flowing in the channel, thereby preventing impurities from damaging the pipes or water pump blades.

[0060] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery housing, characterized in that, include: Mounting bracket, used for mounting battery modules and electrical components; A liquid cooling plate is fixed to one side of the mounting bracket for contact with the battery module and the electrical components. The liquid cooling plate has a condensation chamber inside and has an inlet and an outlet communicating with the condensation chamber. A first filter element is provided on the inlet and a second filter element is provided on the outlet.

2. The battery housing according to claim 1, characterized in that, The first filter element includes a first filter screen, a first guide post, and a first liquid collection box. The first liquid collection box is fixedly disposed inside the condensation chamber, the first guide post is fixedly disposed on the first liquid collection box, and the first filter screen is sleeved on the first guide post so that the first filter screen can enter the liquid inlet or move out of the liquid inlet and be located in the condensation chamber. The first filter screen has a plurality of first mesh holes, and the first liquid collection box is fixedly disposed with a plurality of first pins, the first pins corresponding to the first mesh holes. An elastic element is disposed between the first filter screen and the first liquid collection box.

3. The battery housing according to claim 2, characterized in that, The first collection box is provided with multiple layers of collection plates, which are used to collect impurities. Multiple collection plates are arranged at intervals, and each collection plate is provided with a fan-shaped hole. The fan-shaped holes on adjacent collection plates are staggered.

4. The battery housing according to claim 2, characterized in that, The first guide post has a first ball head at its end away from the first liquid collection box, and the first ball head is used to limit the first filter screen.

5. The battery housing according to claim 1, characterized in that, The second filter element includes a second filter screen, a second guide post, and a second liquid collection box. The second liquid collection box is fixedly disposed inside the condensation chamber, and the second guide post is fixedly disposed on the second liquid collection box. The second filter screen is sleeved on the second guide post so that the second filter screen can enter the liquid outlet or move out of the liquid outlet and into the condensation chamber. The second filter screen has a plurality of second mesh holes, and the second liquid collection box is fixedly disposed with a plurality of second pins, the second pins corresponding to the second mesh holes. The second filter screen is surrounded by a flange.

6. The battery housing according to claim 5, characterized in that, The second collection box is provided with multiple layers of collection plates for collecting impurities. Multiple collection plates are arranged at intervals, and each collection plate is provided with a fan-shaped hole. The fan-shaped holes on adjacent collection plates are staggered.

7. The battery housing according to claim 1, characterized in that, The liquid cooling plate is also provided with a bottom box corresponding to the first filter element and the second filter element. The bottom box is detachably connected to the liquid cooling plate to clean impurities.

8. The battery housing according to claim 1, characterized in that, The condensation chamber is also provided with several partitions at intervals, which divide the condensation chamber into several flow channels. One end of the partition is provided with a gap between it and the inner wall of the condensation chamber so that the adjacent flow channels can communicate with each other.

9. The battery housing according to claim 1, characterized in that, The liquid cooling plate is provided with a sealing plate at its end, which is used to seal the condensation chamber.

10. The battery housing according to claim 1, characterized in that, The mounting bracket includes two longitudinal beams and three transverse beams. The longitudinal beams are fixed to both ends of the liquid cooling plate, and the transverse beams are connected between the longitudinal beams. The transverse beams are spaced apart to form a battery module mounting area and an electrical component mounting area on the liquid cooling plate.

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