Battery maintenance port cover plate, battery pack and electric equipment

Abstract

The utility model relates to the field of batteries, and particularly discloses a battery maintenance port cover plate which comprises a protective plate installed on a tray, a sealing area and a non-sealing area are formed on the protective plate, the sealing area can cover a maintenance port of the tray, a sealing structure is arranged on the edge area of the sealing area in the circumferential direction, and the non-sealing area can cover the maintenance port of the tray. Therefore, foreign matters can be prevented from entering a battery component system through the maintenance port, and the battery maintenance port cover plate is better in waterproof effect, lower in cost and high in assembly efficiency. The utility model also discloses a battery pack and electric equipment.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and in particular to a battery maintenance port cover, a battery pack and electrical equipment. Background Art

[0002] The battery pack is generally composed of multiple battery modules, each module is composed of several or more than a dozen battery cells, which store energy and provide energy. Generally, the battery pack can be installed on a tray, and then the tray is installed in the chassis system of the car. The working conditions of the related components connected to the battery pack can be checked by setting a maintenance port. After the inspection, the maintenance port needs to be blocked and sealed to ensure that foreign objects or water under the chassis cannot enter the cabin during driving.

[0003] At present, in the prior art, see Figure 4 As described, the sealing foam 2' is bonded to the back of the tray 1' by adhesive, and then the sealing cover plate 3' is pressed onto the sealing foam 2', and the sealing cover plate 3' is installed on the tray 1' by using the cover plate bolts 4', so as to achieve the sealing of the maintenance port, and finally the guard plate 5' is installed on the tray 1' by using the guard plate bolts 6', so as to achieve the protection of the battery in the tray 1'. However, there are some problems in the above technical scheme. First, the sealing effect is relatively poor: the sealing part is sealed by the sealing foam 2', and there are pores in the sealing foam 2', which causes water vapor to enter the battery component system through the pores, affecting its service life. Secondly, the cost is high: the sealing cover plate 3' is a separate part, which requires additional cost. Moreover, the assembly efficiency is low: the sealing part of the maintenance port is connected to the tray 1' by adhesive, and the sealing foam 2' is soft in texture, easy to deform, and easy to stick to the side. It is not easy to adjust after sticking to the side, which affects the assembly efficiency.

[0004] In view of this, it is necessary to provide a battery maintenance port cover to solve or overcome the above technical problems. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a battery maintenance port cover. Firstly, the cover has a good waterproof effect and can effectively prevent water vapor from entering the interior of the battery component system. Secondly, the cover has a lower cost and integrates the traditional sealing cover, guard plate and related parts. Finally, the cover has a high assembly efficiency. It only needs to assemble the integrated guard plate directly onto the pallet to achieve the sealing of the maintenance port and the protection of the bottom of the pallet, thereby improving the production line rhythm.

[0006] The second technical problem to be solved by the utility model is to provide a battery pack, which includes the battery maintenance port cover of the above technical solution. Firstly, it has a good waterproof effect and can effectively prevent water vapor from entering the interior of the battery component system. Secondly, it has a low cost and integrates the traditional sealing cover, guard plate and related parts. Finally, it has a high assembly efficiency. It only needs to assemble the integrated guard plate directly onto the pallet to achieve the sealing of the maintenance port and the protection of the bottom of the pallet, thereby improving the production line rhythm.

[0007] The third technical problem to be solved by the utility model is to provide a vehicle, which includes a battery pack of the above technical solution. Firstly, it has a good waterproof effect and can effectively prevent water vapor from entering the interior of the battery component system. Secondly, it has a low cost and integrates the traditional sealing cover plate, guard plate and related parts. Finally, it has a high assembly efficiency. It only needs to assemble the integrated guard plate directly onto the pallet to achieve the sealing of the maintenance port and the protection of the bottom of the pallet, thereby improving the production line rhythm.

[0008] In order to solve the above technical problems, the first aspect of the utility model provides a battery maintenance port cover, comprising: a protective plate installed on a tray, a sealing area and a non-sealed area formed on the protective plate, the sealing area can cover the maintenance port of the tray, and a sealing structure is circumferentially arranged at the edge area of ​​the sealing area to prevent foreign matter from entering the interior of the battery component system through the maintenance port.

[0009] Optionally, reinforcement structures are provided in both the sealing area and the non-sealing area, and the reinforcement structures protrude from the surface of the guard plate.

[0010] Optionally, thermal insulation layers are provided in both the sealed area and the non-sealed area.

[0011] Optionally, a flange structure is provided on the edge of the sealing area along the circumferential direction, and the flange structure can prevent the sealing structure from being damaged due to impact.

[0012] Optionally, the non-sealed area is further provided with a drainage hole to prevent rainwater from entering the battery in the tray through the non-sealed area.

[0013] Optionally, the guard plate is a metal part.

[0014] Optionally, the guard plate and the tray are connected by fasteners.

[0015] Optionally, a protective layer is provided at the bottom of the tray, and the protective layer can prevent the battery cells from being damaged by impact.

[0016] A second aspect of the utility model provides a battery pack, comprising a tray and a battery maintenance access cover according to any one of the above technical solutions, wherein the battery maintenance access cover is mounted on the tray.

[0017] A third aspect of the utility model provides an electrical device, comprising the battery pack described in the above technical solution.

[0018] Through the above technical solution, the beneficial effects of the utility model are as follows:

[0019] The battery maintenance port cover of the utility model comprises: a guard plate installed on a tray, a sealing area and a non-sealing area are formed on the guard plate, the sealing area can cover the maintenance port of the tray, and a sealing structure is arranged along the circumference of the edge area of ​​the sealing area to prevent foreign matter from entering the battery component system through the maintenance port. The cover has a good waterproof effect and can effectively prevent water vapor from entering the battery component system. At the same time, the production cost of the cover is low and the assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly of the battery maintenance port cover plate of a specific embodiment of the utility model;

[0021] Figure 2 It is a plan view of a battery maintenance port cover according to a specific embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the reinforcement structure of the battery maintenance port cover in a specific embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of a battery maintenance port cover in the prior art.

[0024] Attached Marking Description

[0025] 1. Tray; 2. Guard plate; 3. Sealed area; 4. Non-sealed area; 5. Maintenance port; 6. Sealed structure; 7. Reinforced structure; 8. Drain hole; 9. Flanged structure; 10. Through hole. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] First of all, it should be noted that some directional words involved in the following description to clearly illustrate the technical solution of the utility model are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The utility model provides a battery maintenance port cover, see Figure 1 and Figure 2 As shown, it includes: a protective plate 2 installed on a tray 1, a sealing area 3 and a non-sealed area 4 are formed on the protective plate 2, the sealing area 3 can cover the maintenance port 5 of the tray 1, and a sealing structure 6 is circumferentially arranged at the edge area of ​​the sealing area 3 to prevent foreign matter from entering the interior of the battery component system through the maintenance port 5.

[0030] It should be noted that in the prior art, see Figure 4As shown, the sealing foam 2' is bonded to the back of the tray 1' by adhesive, and then the sealing cover 3' is pressed onto the sealing foam 2', and the sealing cover 3' is installed on the tray 1' using the cover bolt 4', so as to achieve the sealing of the maintenance port, and finally the guard plate 5' is installed on the tray 1' using the guard plate bolt 6', so as to achieve the protection of the battery in the tray 1'. The above technical scheme has the following disadvantages. First, since the sealing foam 2' is a separate part, it requires additional manufacturing production costs. Secondly, since the sealing foam 2' has pores, the sealing performance is poor, which makes it easy for water vapor to enter the battery component system through the pores, affecting its service life. Moreover, since the sealing foam 2' is soft and easy to deform, it is easy to be attached to the side during the connection process with the adhesive and the tray 1', and it is not easy to adjust after being attached to the side, which affects the assembly efficiency. In the present invention, the design of the sealing cover plate 3' is cancelled, which saves a certain amount of cost. The guard plate 2 is made of a stamping process, and the guard plate 2 is divided into a sealing area 3 and a non-sealing area 4. The sealing area 3 can cover the maintenance port 5 of the tray 1, and a sealing structure 6 is circumferentially arranged at the edge area of ​​the sealing area 3. Preferably, the sealing structure 6 is a rubber part, which has no pores and will not have a moisture permeability effect, has good sealing performance, is not easy to wear, and has a long service life. The sealing structure 6 is located between the guard plate 2 and the tray 1, and the sealing structure 6 is arranged on the guard plate 2 through a vulcanization process. During installation, the sealing structure 6 rests against the bottom sealing surface of the tray 1, with a good waterproof effect, which can effectively prevent water vapor from entering the battery component system through the maintenance port 5 and affecting the service life of the battery components. It should be noted that during the assembly process, it is only necessary to directly assemble the integrated guard plate 2 onto the tray 1 to achieve the sealing of the maintenance port 5 and the protection of the bottom of the tray 1, thereby improving the assembly efficiency.

[0031] In some embodiments of the utility model, a reinforcing structure 7 is provided in both the sealing area 3 and the non-sealing area 4, and the reinforcing structure 7 protrudes from the surface of the guard plate 2. It should be noted that the reinforcing structure 7 can be a reinforcing rib to ensure that the sealing area 3 and the non-sealing area 4 have sufficient rigidity, wherein the reinforcing structure 7 located in the non-sealing area 4 is arranged in a horizontal and vertical staggered manner, the horizontal and vertical reinforcing structures 7 are arranged in parallel, and the reinforcing structure 7 located in the sealing area 3 is designed in a strip shape. It should be noted that the guard plate 2 is a metal part, which has a large rigidity and can effectively protect the pallet 1.

[0032] In some embodiments of the utility model, an insulation layer is provided in both the sealed area 3 and the non-sealed area 4. It should be noted that the insulation layer can be insulation cotton, which is installed on the guard plate 2 by bonding to play the role of heat insulation and impact protection. It should be noted that in the prior art, bolts are only used to fasten the guard plate 5' around. Since the guard plate 5' has a large area and is thin, the bolts only fix the guard plate 5' around, and cannot prevent the deformation of the internal area of ​​the guard plate 5'. The deformation of the internal area of ​​the guard plate 5' is usually large. In the present application, a plurality of through holes 10 are also provided at the junction of the sealed area 3 and the non-sealed area 4. The bolts are passed through the through holes 10 and screwed into the corresponding holes on the pallet 1, which can effectively reduce the deformation of the guard plate 2 and have a greater rigidity.

[0033] In some embodiments of the utility model, the edge of the sealing area 3 is provided with a flange structure 9 along the circumferential direction, and the flange structure 9 can prevent the sealing structure 6 from being damaged by impact. It should be noted that the edge of the sealing area 3 is bent at a certain angle to form the flange structure 9, and the flange structure 9 can be a convex structure higher than the surface of the guard plate 2 and facing the ground. Since the windward surface of the sealing area 3 will be impacted by stones and water flow during normal driving, the sealing structure 6 will fail after being impacted, so bending the edge of the sealing area 3 to form the flange structure 9 can prevent the sealing structure 6 from being impacted by stones and affecting its sealing performance, further improving the protective effect of the sealing area 3.

[0034] In some embodiments of the utility model, the non-sealed area 4 is further provided with a drainage hole 8 to prevent rainwater from entering the battery in the tray 1 through the non-sealed area 4. It should be noted that during the driving of the vehicle, water may enter the non-sealed area 4 of the guard plate 1, thereby causing the battery or battery components to be damaged by moisture. Therefore, a drainage hole 8 may be provided on the reinforcement structure 7 to prevent the battery or battery components from being damaged by moisture. The size of the drainage hole 8 needs to be adaptively designed according to different operating conditions of the vehicle.

[0035] In some embodiments of the utility model, the guard plate 2 and the tray 1 are connected by fasteners. It should be noted that the fasteners may be bolts, and the guard plate 2 and the tray 1 are fastened together by bolts to ensure a reliable connection between the two. It should be noted that a protective layer is provided at the bottom of the tray 1, and the protective layer can prevent the battery cells from being damaged by impact. The tray 1 carries the battery cells, and a strong impact may cause safety risks, affecting the normal use of the battery. The impact here includes bumps on the road during normal driving, impacts from flying stones, etc. The protective layer may be a waterproof, durable, multifunctional material layer made of polyvinyl chloride.

[0036] As a relatively preferred embodiment of the battery maintenance port cover of the utility model, refer to Figures 1 to 4 As shown, it includes: a guard plate 2 installed on a pallet 1, a protective layer is provided at the bottom of the pallet 1, the pallet 1 and the guard plate 2 are connected by bolts, the guard plate 2 is a metal part, a sealing area 3 and a non-sealing area 4 are formed on the guard plate 2, reinforcing ribs are provided in the sealing area 3 and the non-sealing area 4, the reinforcing ribs protrude from the surface of the guard plate 2, thermal insulation cotton is provided in the sealing area 3 and the non-sealing area 4, the sealing area 3 can cover the maintenance port 5 of the pallet 1, the edge of the sealing area 3 is circumferentially provided with a flange structure 9, the non-sealing area 4 is also provided with a drainage hole 8, and the edge area of ​​the sealing area 3 is circumferentially provided with a sealing structure 6 to prevent foreign matter from entering the battery component system through the maintenance port 5.

[0037] During the working process, the guard plate 2 is formed by a stamping process, a protective layer is set in the sealing area 3 and the non-sealing area 4 of the guard plate 2 by bonding, and a sealing structure 6 is set circumferentially in the edge area of ​​the sealing area 3 by a vulcanization process. The sealing structure 6 is placed against the bottom sealing surface of the tray 1, and then the guard plate 2 and the tray 1 are fixed with bolts. The waterproof effect is good, and it can effectively prevent water vapor from entering the battery component system through the maintenance port 5 and affecting the service life of the battery components. When the battery component system needs to be repaired, just remove the bolts, which is simple and convenient. During the assembly process, you only need to directly assemble the integrated guard plate 2 onto the tray 1 to achieve the sealing of the maintenance port 5 and the protection of the bottom of the tray 1, thereby improving the production line rhythm.

[0038] The second aspect of the utility model also provides a battery pack, including a tray 1 and a battery maintenance port cover of the above technical solution, the battery maintenance port cover is installed on the tray 1. First, the battery pack has a good waterproof effect, which can effectively prevent water vapor from entering the battery component system; the cost is low, and the traditional sealing cover, protective plate and related parts are integrated; the assembly efficiency is high, and the integrated protective plate 2 only needs to be directly assembled on the tray 1 to achieve the sealing of the maintenance port 5 and the protection of the bottom of the tray 1, which improves the production line beat.

[0039] The third aspect of the utility model also provides an electrical device, including a battery pack of the above technical solution. The electrical device has a good waterproof effect and can effectively prevent water vapor from entering the battery component system; the cost is low, and the traditional sealing cover plate, protective plate and related parts are integrated; the assembly efficiency is high, and the maintenance port 5 can be sealed and the bottom of the tray 1 can be protected by directly assembling the integrated protective plate 2 onto the tray 1, thereby improving the production line rhythm.

[0040] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0042] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A battery maintenance port cover, characterized in that: include: A protective plate (2) is mounted on a tray (1), wherein a sealing area (3) and a non-sealing area (4) are formed on the protective plate (2), wherein the sealing area (3) is capable of covering a maintenance opening (5) of the tray (1), and a sealing structure (6) is provided along the circumference of the edge area of ​​the sealing area (3) to prevent foreign matter from entering the interior of a battery component system through the maintenance opening (5).

2. The battery maintenance port cover according to claim 1, characterized in that: A reinforcement structure (7) is provided in both the sealing area (3) and the non-sealing area (4), and the reinforcement structure (7) protrudes from the surface of the guard plate (2).

3. The battery maintenance port cover according to claim 1, characterized in that: Insulation layers are provided in both the sealed area (3) and the non-sealed area (4).

4. The battery maintenance port cover according to claim 1, characterized in that: The edge of the sealing area (3) is provided with a flange structure (9) along the circumferential direction, and the flange structure (9) can prevent the sealing structure (6) from being damaged due to impact.

5. The battery maintenance port cover according to claim 1, characterized in that: The non-sealed area (4) is also provided with a drainage hole (8) to prevent rainwater from entering the interior of the battery in the tray (1) through the non-sealed area (4).

6. The battery maintenance port cover according to claim 1, characterized in that: The guard plate (2) is a metal part.

7. The battery maintenance port cover according to claim 1, characterized in that: The guard plate (2) and the tray (1) are connected via fasteners.

8. The battery maintenance access cover according to any one of claims 1 to 7, characterized in that: The bottom of the tray (1) is provided with a protective layer, and the protective layer can prevent the battery cells from being damaged by impact.

9. A battery pack, characterized in that: The invention comprises a tray (1) and a battery maintenance access panel according to any one of claims 1 to 8, wherein the battery maintenance access panel is mounted on the tray (1).

10. An electrical device, characterized in that: A battery pack comprising the battery pack of claim 9.

Images