Water inlet and outlet connector of battery box body

Abstract

The utility model discloses a water inlet and outlet connector of a battery box body, which comprises a box body and a water inlet and outlet connector connected on the box body, the box body is provided with a water inlet and outlet, the inner wall of the water inlet and outlet is provided with a water inlet and outlet avoiding groove, and the water inlet and outlet connector is provided with a limiting plate and a limiting bulge. A sealing gasket is arranged between the limiting plate and the limiting protrusion, the sealing gasket is connected to the water inlet and outlet connector in a sleeving mode, the limiting protrusion and the water inlet and outlet connector are arranged in a matched mode, and the distance between the limiting plate and the limiting protrusion is not smaller than the depth of the water inlet and outlet connector. By designing the limiting protrusions and the receding grooves which are matched with each other, sealing connection can be rapidly conducted, the assembling process of the box body and the water inlet and outlet is simplified, the assembling process is optimized, and the box body and the water inlet and outlet can be repeatedly disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a water inlet and outlet joint of a battery box body. Background Technique

[0002] At present, there are two common fixing methods for installing the water inlet and outlet on the battery box body in the industry. The first is to use the battery box body and the water inlet and outlet of the same material and weld them by laser welding, so that the battery box body and the water inlet and outlet form an integral body. The second is to connect and fix the box body and the water inlet and outlet by screw connection. A sealing gasket is installed on the flange of the water inlet and outlet, and the flange is fastened by screw connection to compress the sealing gasket for sealing. The first laser welding method will cause the non-detachability of the water inlet and outlet and is difficult to reuse. The second screw connection method depends more on the precision requirements of the equipment and has high requirements for the connection process of the assembly process. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water inlet and outlet joint of a battery box body to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A water inlet and outlet joint of a battery box body includes a box body and a water inlet and outlet joint connected to the box body. A water inlet and outlet is provided on the box body, and a water inlet and outlet avoidance groove is opened on the inner wall of the water inlet and outlet. A limiting plate and a limiting protrusion are provided on the water inlet and outlet joint. A sealing gasket is provided between the limiting plate and the limiting protrusion. The sealing gasket is sleeved on the water inlet and outlet joint. The limiting protrusion is arranged in cooperation with the water inlet and outlet avoidance groove, and the distance between the limiting plate and the limiting protrusion is not less than the depth of the water inlet and outlet.

[0006] By installing the water inlet and outlet joint in the water inlet and outlet, and providing a limiting plate and a limiting protrusion on the water inlet and outlet joint, the water inlet and outlet joint can be fixedly connected to the box body through the limiting plate and the limiting protrusion, reducing the installation difficulty and improving the installation efficiency.

[0007] As a further scheme of the utility model: the box body includes a bottom plate and side plates arranged around the bottom plate, and the water inlet and outlet is located on the side plates.

[0008] As a further scheme of the utility model: the side plate includes a side plate wall and a connecting part connecting the side plate wall and the bottom plate, and the water inlet and outlet penetrates through the side plate wall.

[0009] Arranging the water inlet and outlet on the side plate wall of the box body is convenient for installation and also facilitates connection with the temperature control system.

[0010] As a further solution of the present utility model: The overall structure of the water inlet and outlet joint is a hollow cylindrical structure, and the water inlet and outlet is a circular through hole.

[0011] The cylindrical water inlet and outlet joint is convenient for installation and will not have the problem of being unable to install due to incorrect angles.

[0012] As a further solution of the present utility model: There are multiple limiting protrusions, the number of the water inlet and outlet avoidance grooves is not less than that of the limiting protrusions, and the limiting protrusions pass through the water inlet and outlet through the water inlet and outlet avoidance grooves.

[0013] By arranging multiple limiting protrusions and arranging them evenly, during the process of fixedly connecting the water inlet and outlet joint to the water inlet and outlet, the limiting protrusions on the entire water inlet and outlet joint can be evenly stressed and are not easily damaged.

[0014] As a further solution of the present utility model: Multiple limiting protrusions are arranged circumferentially around the water inlet and outlet joint, multiple water inlet and outlet avoidance grooves are arranged circumferentially on the inner wall of the water inlet and outlet, and the width of the limiting protrusion is less than the distance between adjacent water inlet and outlet avoidance grooves.

[0015] The number of the water inlet and outlet avoidance grooves can be the same as that of the limiting protrusions or in a multiple relationship. During installation, ensure that all the limiting protrusions can pass through the water inlet and outlet through the water inlet and outlet avoidance grooves.

[0016] As a further solution of the present utility model: The sealing gasket is provided with a sealing gasket avoidance groove, and the sealing gasket avoidance groove is arranged in cooperation with the limiting protrusion.

[0017] By providing the sealing gasket avoidance groove, it is convenient to sleeved the sealing gasket onto the water inlet and outlet joint.

[0018] As a further solution of the present utility model: The sealing gasket is made of compressible silicone foam, the outer contour of the limiting plate is a circular structure, and the radius of the sealing gasket is the same as that of the limiting plate.

[0019] By compressing the sealing gasket, the sealing connection between the water inlet and outlet joint and the water inlet and outlet can be improved.

[0020] As a further solution of the present utility model: The limiting plate and the limiting protrusion form an installation groove for installing the sealing gasket, and the depth of the installation groove is greater than the sum of the thickness of the sealing gasket and the depth of the water inlet and outlet.

[0021] Since the depth of the installation groove is greater than the sum of the thickness of the sealing gasket and the depth of the water inlet and outlet, when they are installed together, the sealing gasket will be extruded and deformed. Under the action of elasticity, the sealing gasket will extrude the end of the water inlet and outlet and the limiting plate, thereby forming an effective sealing structure.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. In this application, by designing the mutually fitting limiting protrusions and avoiding grooves, the sealing connection can be quickly carried out, simplifying the assembly process of the box body and the water inlet and outlet, optimizing the effect of the assembly process, and realizing the repeatable disassembly between the box body and the water inlet and outlet;

[0024] 2. This application cancels the installation processes of welding and screwing, effectively reducing the metal particles generated by welding and screwing, reducing the risk of thermal runaway of the battery pack, and improving the safety of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the battery box body and the water inlet and outlet joint of the present utility model;

[0026] Figure 2 It is an exploded view of the battery box body and the water inlet and outlet joint of the present utility model;

[0027] Figure 3 It is a schematic diagram of the side plate structure of the battery box body of the present utility model;

[0028] Figure 4 It is an exploded view of the connection between the front cross beam and the water inlet and outlet of the present utility model;

[0029] Figure 5 It is a schematic diagram of the water inlet and outlet structure of the present utility model;

[0030] Figure 6 It is a schematic diagram of the sealing gasket structure of the present utility model;

[0031] In the figure: 1 - box body, 2 - water inlet and outlet, 3 - side plate, 4 - water inlet and outlet joint, 5 - sealing gasket, 6 - water inlet and outlet joint installation hole, 7 - side plate wall, 8 - limiting plate, 9 - installation groove, 10 - limiting protrusion, 11 - sealing gasket avoiding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Please refer to Figure 1-3 , in the embodiment of the present utility model, a water inlet / outlet joint of a battery box body includes a box body and a water inlet / outlet joint 4 connected to the box body 1. There is a water inlet / outlet 2 on the box body 1. The box body 1 includes a bottom plate and side plates 3 arranged around the bottom plate. The water inlet / outlet 2 is located on the side plate 3. The side plate 3 includes a side plate wall 7 and a connecting portion connecting the side plate wall and the bottom plate. The water inlet / outlet 2 penetrates through the side plate wall 7. Setting the water inlet / outlet 2 on the side plate wall 7 of the box body 1 is convenient for installation and also facilitates connection with the temperature control system.

[0034] Furthermore, as Figure 4 shown, the water inlet / outlet joint 4 is an overall hollow cylindrical structure. The water inlet / outlet 2 is a circular through-hole. A water inlet / outlet avoidance groove is provided on the inner wall of the water inlet / outlet 2. The water inlet / outlet joint 4 is provided with a limiting plate 8 and a limiting protrusion 10. A sealing gasket 5 is provided between the limiting plate 8 and the limiting protrusion 10. The sealing gasket 5 is sleeved on the water inlet / outlet joint 4. The limiting protrusion 10 is arranged in cooperation with the water inlet / outlet avoidance groove. The distance between the limiting plate 8 and the limiting protrusion 10 is not less than the depth of the water inlet / outlet 2. By installing the water inlet / outlet joint 4 in the water inlet / outlet 2 and providing a limiting plate 8 and a limiting protrusion 10 on the water inlet / outlet joint, the water inlet / outlet joint can be fixedly connected to the box body 1 through the limiting plate 8 and the limiting protrusion, reducing the installation difficulty and improving the installation efficiency.

[0035] Furthermore, as Figure 5 shown, there are multiple limiting protrusions 10. The number of water inlet / outlet avoidance grooves is not less than that of the limiting protrusions 10. The limiting protrusions 10 pass through the water inlet / outlet 2 through the water inlet / outlet avoidance grooves. The multiple limiting protrusions 10 are arranged circumferentially around the water inlet / outlet joint 4. The multiple water inlet / outlet avoidance grooves are arranged circumferentially on the inner wall of the water inlet / outlet 2. The width of the limiting protrusion 10 is less than the distance between adjacent water inlet / outlet avoidance grooves. By providing multiple limiting protrusions 10 and arranging them evenly, during the process of fixedly connecting the water inlet / outlet joint 4 to the water inlet / outlet, the limiting protrusions on the entire water inlet / outlet joint 4 can be evenly stressed and are not easily damaged. In addition, the number of water inlet / outlet avoidance grooves can be the same as or a multiple of the number of limiting protrusions 10. During installation, ensure that all the limiting protrusions 10 can pass through the water inlet / outlet 2 through the water inlet / outlet avoidance grooves.

[0036] Furthermore, as Figure 6As shown, a gasket relief groove 11 is provided on the gasket 5. By providing the gasket relief groove 11, it is convenient to sleeved the gasket 5 onto the water inlet and outlet joint 4. The gasket relief groove 11 is arranged in cooperation with the limit protrusion 10. The gasket 5 is made of compressible silicone foam. The outer contour of the limit plate 8 is a circular structure. The radius of the gasket 5 is the same as the radius of the limit plate 8. Moreover, the limit plate 8 and the limit protrusion 10 form an installation groove 9 for installing the gasket 5. The depth of the installation groove 9 is greater than the sum of the thickness of the gasket 5 and the depth of the water inlet and outlet 2. Since the depth of the installation groove 9 is greater than the sum of the thickness of the gasket 5 and the depth of the water inlet and outlet 2, when installed together, the gasket 5 will be squeezed and deformed. Under the action of elasticity, the gasket 5 will squeeze the end of the water inlet and outlet 2 and the limit plate 8, thereby forming an effective sealing structure.

[0037] When the present utility model is in use, first, the gasket 5 is sleeved onto the water inlet and outlet joint 4 from one end of the limit protrusion 10. Since the gasket relief groove 11 is provided on the gasket 5, the gasket 5 can enter the installation groove 9 on the water inlet and outlet joint 4. Then, the water inlet and outlet joint 4 is inserted into the water inlet and outlet 2, and the limit protrusion 10 on the water inlet and outlet joint 4 is aligned with the relief groove on the water inlet and outlet 2, and thus the water inlet and outlet joint 4 can be inserted into the water inlet and outlet 2.

[0038] When the limit protrusion 10 is about to pass through the water inlet and outlet 2, the gasket 5 starts to contact the end of the water inlet and outlet 2. At this time, continue to press and squeeze the gasket 5 so that the water inlet and outlet joint 4 continues to be inserted into the water inlet and outlet 2 until the limit protrusion 10 extends from the inner side of the water inlet and outlet 2. At this time, rotate the water inlet and outlet joint 4 so that the limit protrusion 10 is misaligned with the relief groove of the water inlet and outlet 2, and the limit protrusion 10 can be stuck on the inner end wall of the water inlet and outlet 2, that is, the inner wall of the side plate wall 7. Since the gasket 5 is squeezed during the installation process, the gasket 5 has a tendency to recover, and thus a sealing structure is formed between the limit plate 8 and the side plate wall 7, completing the sealing connection between the water inlet and outlet joint 4 and the box body 1.

[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0040] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An inlet / outlet joint of a battery box body, comprising a box body and an inlet / outlet joint (4) connected to the box body (1), characterized in that, The box body (1) is provided with a water inlet and outlet (2). An avoidance groove for the water inlet and outlet is formed in the inner wall of the water inlet and outlet (2). The water inlet and outlet joint (4) is provided with a limit plate (8) and a limit protrusion (10). A sealing gasket (5) is arranged between the limit plate (8) and the limit protrusion (10). The sealing gasket (5) is sleeved on the water inlet and outlet joint (4). The limit protrusion (10) is arranged in cooperation with the avoidance groove for the water inlet and outlet. The distance between the limit plate (8) and the limit protrusion (10) is not less than the depth of the water inlet and outlet (2).

2. The water inlet / outlet joint of a battery box according to claim 1, characterized in that The box body (1) includes a bottom plate and side plates (3) arranged around the bottom plate. The water inlet and outlet (2) is located on the side plate (3).

3. The water inlet / outlet joint of a battery box according to claim 2, characterized in that, The side plate (3) includes a side plate wall (7) and a connecting part connecting the side plate wall and the bottom plate. The water inlet and outlet (2) penetrates through the side plate wall (7).

4. The water inlet / outlet joint of a battery box according to claim 1, characterized in that, The water inlet and outlet joint (4) is a hollow cylindrical structure as a whole, and the water inlet and outlet (2) is a circular through hole.

5. The water inlet / outlet joint of a battery box according to claim 4, characterized in that, A plurality of the limit protrusions (10) are provided. The number of the avoidance grooves for the water inlet and outlet is not less than that of the limit protrusions (10). The limit protrusions (10) pass through the water inlet and outlet (2) through the avoidance grooves for the water inlet and outlet.

6. The water inlet / outlet joint of a battery box according to claim 1, characterized in that, A plurality of the limit protrusions (10) are arranged circumferentially around the water inlet and outlet joint (4). A plurality of the avoidance grooves for the water inlet and outlet are arranged circumferentially on the inner wall of the water inlet and outlet (2). The width of the limit protrusion (10) is less than the distance between adjacent avoidance grooves for the water inlet and outlet.

7. The water inlet / outlet joint of a battery box according to claim 1, characterized in that, The sealing gasket (5) is provided with a sealing gasket avoidance groove (11). The sealing gasket avoidance groove (11) is arranged in cooperation with the limit protrusion (10).

8. The water inlet / outlet joint of a battery box according to claim 1, characterized in that, The sealing gasket (5) is made of compressible silicone foam. The outer contour of the limit plate (8) is a circular structure. The radius of the sealing gasket (5) is the same as that of the limit plate (8).

9. The water inlet / outlet joint of a battery box according to claim 1, wherein, The limit plate (8) and the limit protrusion (10) form an installation groove (9) for installing the sealing gasket (5). The depth of the installation groove (9) is greater than the sum of the thickness of the sealing gasket (5) and the depth of the water inlet and outlet (2).

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