Liquid cooling PACK module upper cover

Abstract

The utility model relates to a PACK module upper cover, in particular to a liquid cooling PACK module upper cover, which comprises an arc-shaped plate and a square frame connected with the arc-shaped plate. And the arc-shaped plate and the square frame form a main body of the upper cover of the liquid cooling PACK module, so that a box body of the liquid cooling PACK module can be sealed. The device is characterized in that a plurality of groups of positioning assemblies are arranged on the arc-shaped plate, and extrusion plates are connected to the positioning assemblies; the positioning assembly can drive the extrusion plate to be close to or far away from the arc-shaped plate so as to limit the liquid cooling PACK module; a pressure balance assembly is arranged on the arc-shaped plate, and the pressure balance assembly can balance internal and external pressure of the liquid cooling PACK module box body so as to protect the liquid cooling PACK module; when the pressure in the box body of the liquid cooling PACK module is higher than a preset value, the pressure in the box body can be reduced through the pressure balance assembly, so that the stability and the safety of the PACK module are improved, and more serious consequences caused by deterioration of the stability of the liquid cooling PACK module are avoided.

Description

Technical Field

[0001] The utility model relates to an upper cover of a PACK module, in particular to an upper cover of a liquid-cooled PACK module. Background Technique

[0002] The PACK module is assembled by lithium battery cells, which can be a single battery or a series-parallel battery module, etc. The liquid-cooled PACK module refers to using a heat dissipation liquid with good thermal conductivity to dissipate heat from the PACK module to improve the working efficiency of the PACK module.

[0003] The PACK module is usually installed in a box with good sealing performance and high strength, and is sealed with a cover after installation to improve the safety of the use environment of the PACK module. Common covers are composed of materials such as polyester sheet molding compound, glass fiber reinforced resin, fiber reinforced composite material, and long fiber reinforced thermoplastic material.

[0004] Since the common upper cover of the PACK module has a weak pulling ability on the box body, and the weight of the PACK module is large, long-term pressure will cause the lower part of the PACK module box body to sink, which will reduce the protection ability of the box body for the entire PACK module. Summary of the Invention

[0005] The purpose of the utility model is to provide an upper cover of a liquid-cooled PACK module to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] An upper cover of a liquid-cooled PACK module, comprising an arc-shaped plate and a square frame connected to the arc-shaped plate; the arc-shaped plate and the square frame form the main body of the upper cover of the liquid-cooled PACK module, which can seal the box body of the liquid-cooled PACK module.

[0008] It is characterized in that a plurality of positioning components are arranged on the arc-shaped plate, and an extrusion plate is connected to the positioning components; the positioning components can drive the extrusion plate to approach or move away from the arc-shaped plate to limit the liquid-cooled PACK module;

[0009] A pressure balance component is arranged on the arc-shaped plate, and the pressure balance component can balance the internal and external pressures of the box body of the liquid-cooled PACK module to protect the liquid-cooled PACK module;

[0010] Among them, when the pressure in the box body of the liquid-cooled PACK module is higher than the preset value, the pressure in the box body can be reduced through the pressure balance component.

[0011] The upper cover of the liquid-cooled PACK module as described above: The positioning component includes a telescopic sleeve installed inside the arc-shaped plate; a telescopic column that is slidably fitted with the telescopic sleeve is installed on the extrusion plate; a first spring connected to the telescopic column is installed inside the telescopic sleeve.

[0012] The upper cover of the liquid-cooled PACK module as described above: The pressure balance component includes a pressure relief sleeve installed on the arc-shaped plate, and a pressure relief groove is provided on the pressure relief sleeve; a connecting rod is slidably fitted on the pressure relief sleeve; a piston that is slidably fitted with the pressure relief sleeve is installed on the connecting rod; a second spring connected to the piston is installed on the pressure relief sleeve.

[0013] The upper cover of the liquid-cooled PACK module as described above: The pressure balance component further includes a fitting groove provided inside the pressure relief sleeve; a sliding groove is provided on the piston, and a wedge block is slidably fitted inside the sliding groove; a third spring connected to the wedge block is installed inside the sliding groove.

[0014] The upper cover of the liquid-cooled PACK module as described above: One end of the wedge block close to the pressure relief sleeve is composed of a first inclined surface and a second inclined surface. The second inclined surface is close to the arc-shaped plate, the first inclined surface faces away from the arc-shaped plate, and the inclination angle of the second inclined surface is greater than that of the first inclined surface.

[0015] The upper cover of the liquid-cooled PACK module as described above: A plurality of connecting rods are installed on the arc-shaped plate, and the connecting rods can be connected to the liquid-cooled PACK module box body.

[0016] The upper cover of the liquid-cooled PACK module as described above: Mounting holes are provided around the square frame, and the mounting holes can be connected to the liquid-cooled PACK module box body.

[0017] Compared with the prior art, the beneficial effects of the present utility model are: The pre-arch arc-shaped plate is connected to the box body through the connecting rod, and the pre-arch of the arc-shaped plate is used to increase the pulling ability of the upper cover on the easily sunken part of the box body, so that the box body is not easily deformed; The displacement of the PACK module can be limited through the positioning component, making it not easy to shift, thereby improving the stability of the PACK module; The pressure balance component is used to maintain the pressure balance inside and outside the box body, thereby improving the safety of the PACK module. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the upper cover of the liquid-cooled PACK module.

[0019] Figure 2 It is a schematic structural diagram of another view angle of the upper cover of the liquid-cooled PACK module.

[0020] Figure 3 It is a schematic structural diagram of the positioning component in the upper cover of the liquid-cooled PACK module.

[0021] Figure 4 It is a structural schematic diagram of the pressure balance component in the upper cover of the liquid-cooled PACK module.

[0022] Figure 5 It is Figure 4 a structural schematic diagram from the sectional perspective of

[0023] Figure 6 It is a structural schematic diagram of the piston in the upper cover of the liquid-cooled PACK module.

[0024] Figure 7 It is a structural schematic diagram of the wedge block in the upper cover of the liquid-cooled PACK module.

[0025] In the figure: 1. Arc-shaped plate; 101. Telescopic sleeve; 102. Connecting rod;

[0026] 2. Square frame; 201. Mounting hole;

[0027] 3. Extrusion plate; 301. Telescopic column;

[0028] 4. First spring;

[0029] 5. Pressure relief sleeve; 501. Pressure relief groove; 502. Fitting groove;

[0030] 6. Piston; 601. Slide groove;

[0031] 7. Connecting rod;

[0032] 8. Second spring;

[0033] 9. Third spring;

[0034] 10. Wedge block; 1001. First inclined surface; 1002. Second inclined surface. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0036] Please refer to Figures 1 to 7 , as an embodiment of the present invention, the upper cover of the liquid-cooled PACK module includes an arc-shaped plate 1 and a square frame 2 connected to the arc-shaped plate 1; the arc-shaped plate 1 and the square frame 2 form the main body of the upper cover of the liquid-cooled PACK module and can seal the liquid-cooled PACK module box body.

[0037] A plurality of positioning components are arranged on the arc-shaped plate 1, and an extrusion plate 3 is connected to the positioning components; the positioning components can drive the extrusion plate 3 to approach or move away from the arc-shaped plate 1 to limit the liquid-cooled PACK module;

[0038] A pressure balance component is arranged on the arc-shaped plate 1, and the pressure balance component can balance the internal and external pressures of the liquid-cooled PACK module box to protect the liquid-cooled PACK module;

[0039] Among them, when the pressure in the liquid-cooled PACK module box is higher than the preset value, the pressure in the box can be reduced through the pressure balance component.

[0040] In this embodiment, the upper cover of the liquid-cooled PACK module composed of the arc-shaped plate 1 and the square frame 2 can seal the liquid-cooled PACK module box to protect the safety of the liquid-cooled PACK module during use.

[0041] When the upper cover of the liquid-cooled PACK module is connected to the liquid-cooled PACK module box, the liquid-cooled PACK module will contact and press against the extrusion plate 3, and the pressing force generated by the pressing will act on the positioning component. The reaction force of the positioning component is used to prevent relative displacement between the extrusion plate 3 and the liquid-cooled PACK module, thereby limiting the liquid-cooled PACK module and increasing the difficulty of the liquid-cooled PACK module from shifting during use.

[0042] When the liquid-cooled PACK module is interfered by the outside world and affects its stability, the liquid-cooled PACK module will cause the pressure in the liquid-cooled PACK module box to increase. At this time, the pressure balance component will act to reduce the pressure in the liquid-cooled PACK module box to maintain the internal and external pressure difference and avoid more serious consequences caused by the deterioration of the stability of the liquid-cooled PACK module.

[0043] As a further solution of the present invention, the positioning component includes a telescopic sleeve 101 installed inside the arc-shaped plate 1; a telescopic column 301 slidably fitted with the telescopic sleeve 101 is installed on the extrusion plate 3; a first spring 4 connected to the telescopic column 301 is installed inside the telescopic sleeve 101.

[0044] In this embodiment, when the upper cover of the liquid-cooled PACK module is connected to the box body of the liquid-cooled PACK module, the liquid-cooled PACK module will contact and squeeze the extrusion plate 3, causing the extrusion plate 3 to approach the arc-shaped plate 1, thereby driving the telescopic column 301 to slide inward in the telescopic sleeve 101, and the first spring 4 will be compressed. The compression amount is the same as the displacement of the extrusion plate 3 after being squeezed by the liquid-cooled PACK module. The elastic force of the first spring 4 increases as the compression amount increases. At the same time, the elastic force of the first spring 4 will also cause the extrusion plate 3 to tend to move in the direction away from the arc-shaped plate 1, thereby increasing the extrusion friction between the extrusion plate 3 and the liquid-cooled PACK module, making it more difficult for the liquid-cooled PACK module to shift in position during use.

[0045] As a further solution of the present invention, the pressure balance assembly includes a pressure relief sleeve 5 installed on the arc-shaped plate 1, and a pressure relief groove 501 is provided on the pressure relief sleeve 5; a connecting rod 7 is slidably fitted on the pressure relief sleeve 5; a piston 6 slidably fitted with the pressure relief sleeve 5 is installed on the connecting rod 7; a second spring 8 connected to the piston 6 is installed on the pressure relief sleeve 5.

[0046] In this embodiment, when the liquid-cooled PACK module is interfered by the outside world and its stability is affected, the liquid-cooled PACK module will cause the pressure in the box body of the liquid-cooled PACK module to increase. At this time, the pressure in the box body of the liquid-cooled PACK module will push the piston 6 to slide in the pressure relief sleeve 5 in the direction away from the arc-shaped plate 1, so that the connecting rod 7 slides in the pressure relief sleeve 5, and the second spring 8 will be compressed.

[0047] In the initial state, the piston 6 will disconnect the communication between the pressure relief groove 501 and the box body of the liquid-cooled PACK module; when the piston 6 slides in the direction away from the arc-shaped plate 1 until the pressure relief groove 501 communicates with the box body of the liquid-cooled PACK module, the pressure in the box body will be released from the pressure relief groove 501; when the pressure inside and outside the box body is balanced, the elastic force of the second spring 8 will push the piston 6 towards the arc-shaped plate 1, causing the pressure relief groove 501 to disconnect from the box body.

[0048] As a further solution of the present invention, the pressure balance assembly further includes a fitting groove 502 provided in the pressure relief sleeve 5; a sliding groove 601 is provided on the piston 6, and a wedge block 10 is slidably fitted in the sliding groove 601; a third spring 9 connected to the wedge block 10 is installed in the sliding groove 601.

[0049] In this embodiment, in the initial state, the inner wall of the pressure relief sleeve 5 presses against the wedge block 10, causing the wedge block 10 to slide inwards and contract in the chute 601, and the third spring 9 is compressed; when the wedge block 10 slides away from the arc-shaped plate 1 with the piston 6 and separates from the inner wall of the pressure relief sleeve 5, the elastic force of the third spring 9 causes the wedge block 10 to slide outwards in the chute 601, so that the wedge block 10 enters the fitting groove 502; at this time, the fitting groove 502 restricts the continuous sliding of the wedge block 10 to restrict the piston 6 from sliding towards the arc-shaped plate 1 to maintain the pressure relief state.

[0050] As a further solution of the present invention, one end of the wedge block 10 close to the pressure relief sleeve 5 is composed of a first inclined surface 1001 and a second inclined surface 1002. The second inclined surface 1002 is close to the arc-shaped plate 1, the first inclined surface 1001 faces away from the arc-shaped plate 1, and the inclination angle of the second inclined surface 1002 is greater than that of the first inclined surface 1001.

[0051] In this embodiment, since the inclination angle of the second inclined surface 1002 is greater than that of the first inclined surface 1001, the resistance of the wedge block 10 to slide away from the arc-shaped plate 1 when disengaging from the fitting groove 502 is less than the resistance to slide towards the arc-shaped plate 1. Therefore, the mutual cooperation of the fitting groove 502 and the wedge block 10 causes the piston 6 to be blocked from continuing to slide after the wedge block 10 enters the fitting groove 502; since the resistance to slide towards the arc-shaped plate 1 is large, the piston 6 can maintain its position unchanged to continuously relieve pressure. After the pressure in the box decreases, the elastic force of the second spring 8 causes the piston 6 to disconnect the communication between the pressure relief groove 501 and the box.

[0052] The force received by the piston 6 during pressure relief is the upward thrust generated by the pressure in the box, the downward elastic force of the second spring 8, and the resistance generated by the cooperation between the fitting groove 502 and the wedge block 10; and the thrust is greater than the sum of the elastic force and the resistance; when the pressure release in the box is about to be completed, the upward thrust will gradually decrease. When the thrust is less than the elastic force, the piston 6 will slide towards the arc-shaped plate 1. To prevent the piston 6 from closing the pressure relief groove 501 before the pressure is completely balanced, the elastic force of the third spring 9 will act together with the thrust to offset the elastic force of the second spring 8 until the thrust completely disappears, and at this time, the pressure inside and outside the box is balanced.

[0053] Through the action of the pressure balance component, the pressure inside and outside the box can be balanced, and pressure relief can still be achieved when the pressure inside the box is slightly higher than the outside pressure.

[0054] As a further solution of the present invention, a plurality of connecting rods 102 are installed on the arc-shaped plate 1, and the connecting rods 102 can be connected to the liquid-cooled PACK module box body.

[0055] In this embodiment, after being connected to the box body through the connecting rod 102, due to the pre-arch of the arc-shaped plate 1, it can enhance the difficulty of the box body deforming downward after long-term loading of the liquid-cooled PACK module, thereby increasing the use safety and service life of the liquid-cooled PACK module.

[0056] As a further solution of the present utility model, mounting holes 201 are provided around the square frame 2, and the mounting holes 201 can be connected to the box body of the liquid-cooled PACK module.

[0057] In this embodiment, by connecting through the mounting holes 201 to the side of the box body, it can avoid loosening of the connection caused by factors such as the gravity of the liquid-cooled PACK module or collisions and vibrations during use.

[0058] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A liquid-cooled PACK module upper cover, comprising an arc-shaped plate (1) and a square frame (2) connected to the arc-shaped plate (1); the arc-shaped plate (1) and the square frame (2) form the main body of the liquid-cooled PACK module upper cover, which can seal the liquid-cooled PACK module box body; It is characterized in that A plurality of positioning components are arranged on the arc-shaped plate (1), and an extrusion plate (3) is connected to the positioning components; the positioning components can drive the extrusion plate (3) to approach or move away from the arc-shaped plate (1) to limit the liquid-cooled PACK module; A pressure balance component is arranged on the arc-shaped plate (1), and the pressure balance component can balance the internal and external pressures of the liquid-cooled PACK module box body to protect the liquid-cooled PACK module; Among them, when the pressure in the liquid-cooled PACK module box body is higher than a preset value, the pressure in the box body can be reduced through the pressure balance component.

2. The upper cover of a liquid-cooled PACK module according to claim 1, wherein, The positioning component includes a telescopic sleeve (101) installed on the inner side of the arc-shaped plate (1); a telescopic column (301) slidably fitted with the telescopic sleeve (101) is installed on the extrusion plate (3); a first spring (4) connected to the telescopic column (301) is installed in the telescopic sleeve (101).

3. The upper cover of a liquid-cooled PACK module according to claim 1, wherein The pressure balance component includes a pressure relief sleeve (5) installed on the arc-shaped plate (1), and a pressure relief groove (501) is formed in the pressure relief sleeve (5); a connecting rod (7) is slidably fitted on the pressure relief sleeve (5); a piston (6) slidably fitted with the pressure relief sleeve (5) is installed on the connecting rod (7); a second spring (8) connected to the piston (6) is installed on the pressure relief sleeve (5).

4. The upper cover of a liquid-cooled PACK module according to claim 3, characterized in that, The pressure balance component further includes a fitting groove (502) formed in the pressure relief sleeve (5); a sliding groove (601) is formed in the piston (6), and a wedge block (10) is slidably fitted in the sliding groove (601); a third spring (9) connected to the wedge block (10) is installed in the sliding groove (601).

5. The upper cover of a liquid-cooled PACK module according to claim 4, characterized in that, One end of the wedge block (10) close to the pressure relief sleeve (5) is composed of a first inclined surface (1001) and a second inclined surface (1002), the second inclined surface (1002) is close to the arc-shaped plate (1), the first inclined surface (1001) faces away from the arc-shaped plate (1), and the inclination angle of the second inclined surface (1002) is greater than that of the first inclined surface (1001).

6. The upper cover of a liquid-cooled PACK module according to claim 1, characterized in that, A plurality of connecting rods (102) are installed on the arc-shaped plate (1), and the connecting rods (102) can be connected to the liquid-cooled PACK module box body.

7. A liquid-cooled PACK module upper cover according to claim 1, characterized in that, Mounting holes (201) are formed around the square frame (2), and the mounting holes (201) can be connected to the liquid-cooled PACK module box body.

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