Nickel-metal hydride battery cover plate

Abstract

The utility model discloses a nickel-metal hydride battery cover plate, and relates to the technical field of nickel-metal hydride battery cover plates, the nickel-metal hydride battery cover plate comprises a cover plate main body consisting of a convex top plate and a convex bottom plate, and a ventilation and heat dissipation assembly, and the ventilation and heat dissipation assembly is used for enabling the cover plate main body to have a heat dissipation effect after being fixed with a box body. According to the nickel-metal hydride battery, by arranging the ventilation and heat dissipation assembly, heat generated when the nickel-metal hydride battery is used can be dissipated out through a channel formed by the ventilation holes, the arc-shaped hollow plate and the heat dissipation holes, so that the use safety of the nickel-metal hydride battery can be better guaranteed; meanwhile, a filtering and dehumidifying plate can filter dust in the air through a filtering net, water vapor in the air can be adsorbed through a drying agent, in this way, it is guaranteed that the space where the nickel-metal hydride battery is located is clean and dry, in addition, an arc-shaped hollow plate further has the effect of buffering deformation of a convex top plate, and the service life of the nickel-metal hydride battery is prolonged. Therefore, the impact of external impact force on the nickel-metal hydride battery is reduced, and a certain impact protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel-hydrogen battery cover plates, in particular to a nickel-hydrogen battery cover plate. Background Art

[0002] Nickel-metal hydride battery is a kind of storage battery with good performance. Nickel-metal hydride battery can also be divided into nickel-metal hydride rechargeable battery, power nickel-metal hydride battery, large-capacity nickel-metal hydride battery, etc. Among them, large-capacity nickel-metal hydride battery is widely used in automotive gasoline and electric hybrid vehicles.

[0003] A nickel-hydrogen battery pack is composed of a battery module, a sensor, a battery manager, an HV junction box assembly including a contactor, a power battery cooling fan (brushless), a maintenance switch, etc. Since the chassis of some vehicles is relatively low, in order to prevent the battery module from contacting with water, the battery module is usually wrapped with an outer shell to prevent water from entering the battery pack and causing malfunctions. The existing outer shell that wraps the battery module is divided into an upper cover and a lower box body. After the upper cover and the lower box body are fixed to each other, the interior of the entire shell is in a closed state, which is not conducive to heat dissipation. Based on this, a nickel-hydrogen battery cover is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a nickel-hydrogen battery cover to solve the above-mentioned problems.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a nickel-hydrogen battery cover, comprising a cover body composed of a convex top plate and a convex bottom plate, the convex top plate and the convex bottom plate are distributed up and down and the connection is fixed by welding, a ventilation and heat dissipation component is arranged between the convex top plate and the convex bottom plate, and the ventilation and heat dissipation component is used to make the cover body have a heat dissipation effect after being fixed to the box body;

[0006] The ventilation and heat dissipation component includes a circulation unit and a filtering unit;

[0007] The circulation unit is used to provide a heat dissipation channel between the inner cavity of the convex bottom plate and the external space;

[0008] The filter unit shown is used to filter the flowing air to prevent dust and moisture.

[0009] As a further solution of the utility model: the circulation unit includes an arc-shaped hollow plate, ventilation holes, and heat dissipation holes;

[0010] The arc-shaped hollow plate is fixed to the top of the middle part of the convex bottom plate, and the ventilation hole runs through the middle part of the convex bottom plate and communicates with the inner cavity of the arc-shaped hollow plate;

[0011] The heat dissipation holes are arranged on the side walls of the convex top plate and are connected to the middle area of ​​the convex top plate and the convex bottom plate, and air circulation between the inner side of the convex bottom plate and the external environment is achieved through the heat dissipation holes, ventilation holes and the arc-shaped hollow plate.

[0012] As a further solution of the utility model: the filter unit includes a clamping groove and a filter dehumidification plate;

[0013] The snap-in groove is symmetrically formed at the bottom middle end of the convex top plate and the top edge of the convex bottom plate. The filter dehumidification plate is snap-fitted to the inner side of the snap-in groove. The snap-in groove is used to separate the heat dissipation hole and the area where the arc-shaped hollow plate is located. The snap-in groove is composed of a filter mesh and a desiccant. The desiccant is wrapped in the middle by the filter meshes distributed front and back. The snap-in groove is used to filter dust and water vapor in the air flowing from the heat dissipation hole to the arc-shaped hollow plate.

[0014] As a further solution of the utility model: the arc-shaped hollow plates are provided in plurality and are distributed in a matrix at the top end of the middle part of the convex bottom plate, and the top of the arc-shaped hollow plates is close to the bottom end of the middle part of the convex top plate but does not contact the bottom end of the middle part of the convex top plate.

[0015] As a further solution of the utility model: mounting holes are symmetrically provided on the edges of the convex top plate and the convex bottom plate, and connecting columns are welded and fixed at positions in the middle of the convex top plate and the convex bottom plate that are aligned with the mounting holes.

[0016] As a further solution of the utility model: the mounting holes and heat dissipation holes are formed on the convex top plate by a punching process, and the mounting holes and ventilation holes are formed on the convex bottom plate by a punching process. The shapes of the convex top plate and the convex bottom plate are cut and bent according to product requirements, and the arc-shaped hollow plate is fixed to the top end of the middle part of the convex bottom plate by welding.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By setting up ventilation and heat dissipation components, the heat generated by the nickel-hydrogen battery during use can be dissipated through the channel composed of ventilation holes, arc-shaped hollow plates, and heat dissipation holes, which can better ensure the safety of the nickel-hydrogen battery. At the same time, the filter dehumidification plate can filter the dust in the air through the filter net and adsorb the water vapor in the air through the desiccant, thus ensuring the cleanliness and dryness of the space where the nickel-hydrogen battery is located. In addition, the arc-shaped hollow plate also has the effect of buffering the deformation of the convex top plate, thereby reducing the impact of external impact force on the nickel-hydrogen battery and playing a certain role in protecting against impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural sectional view of the utility model;

[0021] Figure 3 It is a schematic diagram of the convex top plate and the convex bottom plate of the utility model in the separated state;

[0022] Figure 4 For the utility model Figure 3 Enlarged view of position A in the middle.

[0023] In the figure: 1. Cover plate body; 101. Convex top plate; 102. Convex bottom plate; 103. Mounting hole; 104. Connecting column; 2. Ventilation and heat dissipation assembly; 201. Arc-shaped hollow plate; 202. Ventilation hole; 203. Heat dissipation hole; 204. Snap-in groove; 205. Filter and dehumidification plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 In an embodiment of the utility model, a nickel-hydrogen battery cover plate includes a cover plate body 1 composed of a convex top plate 101 and a convex bottom plate 102. The convex top plate 101 and the convex bottom plate 102 are distributed up and down and the connection is fixed by welding. A ventilation and heat dissipation component 2 is arranged between the convex top plate 101 and the convex bottom plate 102. The ventilation and heat dissipation component 2 is used to make the cover plate body 1 have a heat dissipation effect after being fixed to the box body;

[0026] The ventilation and heat dissipation component 2 includes a circulation unit and a filtering unit;

[0027] The circulation unit is used to provide a heat dissipation channel between the inner cavity of the convex bottom plate 102 and the external space;

[0028] The filter unit shown is used to filter the flowing air to prevent dust and moisture;

[0029] The circulation unit includes an arc-shaped hollow plate 201, ventilation holes 202, and heat dissipation holes 203;

[0030] The arc-shaped hollow plate 201 is fixed to the top of the middle part of the convex bottom plate 102, and the ventilation hole 202 runs through the middle part of the convex bottom plate 102 and communicates with the inner cavity of the arc-shaped hollow plate 201;

[0031] The heat dissipation holes 203 are provided on the side wall of the convex top plate 101 and are connected to the middle area of ​​the convex top plate 101 and the convex bottom plate 102. The heat dissipation holes 203, the ventilation holes 202, and the arc-shaped hollow plate 201 enable air circulation between the inside of the convex bottom plate 102 and the external environment.

[0032] The filter unit includes a snap-in groove 204 and a filter dehumidification plate 205;

[0033] The clamping groove 204 is symmetrically formed at the bottom of the middle part of the convex top plate 101 and the top of the edge of the convex bottom plate 102. The filter dehumidification plate 205 is clamped on the inner side of the clamping groove 204. The clamping groove 204 is used to separate the heat dissipation hole 203 and the area where the arc hollow plate 201 is located. The clamping groove 204 is composed of a filter screen and a desiccant. The desiccant is wrapped in the middle by the filter screens distributed in front and behind. The clamping groove 204 is used to filter dust and water vapor in the air flowing from the heat dissipation hole 203 to the arc hollow plate 201.

[0034] The edges of the convex top plate 101 and the convex bottom plate 102 are symmetrically provided with mounting holes 103 , and a connecting column 104 is welded and fixed at a position in the middle of the convex top plate 101 and the convex bottom plate 102 aligned with the mounting holes 103 .

[0035] In this embodiment: when the top cover body 1 is in use, the bolts can penetrate the mounting holes 103, connect the cylinder 104 and screw them together with the nickel-hydrogen battery placement box. In the subsequent use process, the space between the top cover body 1 and the nickel-hydrogen battery placement box is connected to the external space through the ventilation holes 202, the arc-shaped hollow plate 201, and the heat dissipation holes 203, that is, the heat generated by the nickel-hydrogen battery during use can be dissipated through the channel composed of the ventilation holes 202, the arc-shaped hollow plate 201, and the heat dissipation holes 203, so that the safety of the nickel-hydrogen battery can be better guaranteed.

[0036] At the same time, the filter dehumidification plate 205 can filter the dust in the air through the filter net and adsorb the water vapor in the air through the desiccant, thus ensuring the cleanliness and dryness of the space where the nickel-hydrogen battery is located. It should also be noted that the area where the nickel-hydrogen battery and its placement box are located is installed in the electric vehicle and is not easy to come into contact with external water sources. Therefore, the filter dehumidification plate 205 is mainly used to filter a small amount of water vapor and possible dust in the air, thereby ensuring a long-term stable filtering effect.

[0037] Please refer to Figures 2 to 4 There are multiple arc-shaped hollow plates 201 distributed in a matrix at the top of the middle part of the convex bottom plate 102 , and the top of the arc-shaped hollow plate 201 is close to the bottom of the middle part of the convex top plate 101 but does not contact the bottom of the middle part of the convex top plate 101 .

[0038] In this embodiment: this structure can ensure a good heat dissipation effect. At the same time, when the top of the convex top plate 101 is subjected to excessive external impact, the convex top plate 101 is deformed to contact the arc-shaped hollow plate 201 to squeeze it. The arc-shaped hollow plate 201 can provide a buffer for the deformation of the convex top plate 101, thereby reducing the impact of external impact force on the nickel-hydrogen battery and playing a certain role in protecting against impact.

[0039] Please refer to Figures 1 to 4 The mounting hole 103 and the heat dissipation hole 203 are formed on the convex top plate 101 by a punching process, and the mounting hole 103 and the ventilation hole 202 are formed on the convex bottom plate 102 by a punching process. The shapes of the convex top plate 101 and the convex bottom plate 102 are cut and bent according to product requirements, and the arc-shaped hollow plate 201 is fixed to the top of the middle part of the convex bottom plate 102 by welding.

[0040] In this embodiment, the above structure simplifies the processing and production process of the entire cover plate body 1, making it easy to promote production.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nickel-hydrogen battery cover plate, comprising a cover plate body (1) consisting of a convex top plate (101) and a convex bottom plate (102), wherein the convex top plate (101) and the convex bottom plate (102) are arranged vertically and the connection is fixed by welding, characterized in that: A ventilation and heat dissipation component (2) is provided between the convex top plate (101) and the convex bottom plate (102), and the ventilation and heat dissipation component (2) is used to achieve a heat dissipation effect after the cover plate body (1) is fixed to the box body; The ventilation and heat dissipation component (2) comprises a circulation unit and a filtering unit; The circulation unit is used to provide a heat dissipation channel between the inner cavity of the convex bottom plate (102) and the external space; The filter unit shown is used to filter the flowing air to prevent dust and moisture.

2. A nickel-metal hydride battery cover according to claim 1, characterized in that: The circulation unit comprises an arc-shaped hollow plate (201), ventilation holes (202), and heat dissipation holes (203); The arc-shaped hollow plate (201) is fixed to the top of the middle part of the convex bottom plate (102), and the ventilation hole (202) penetrates the middle part of the convex bottom plate (102) and is connected to the inner cavity of the arc-shaped hollow plate (201); The heat dissipation holes (203) are provided on the side wall of the convex top plate (101) and are connected to the middle area of ​​the convex top plate (101) and the convex bottom plate (102), so that air circulation between the inside of the convex bottom plate (102) and the external environment is achieved through the heat dissipation holes (203), the ventilation holes (202) and the arc-shaped hollow plate (201).

3. A nickel-metal hydride battery cover according to claim 2, characterized in that: The filter unit comprises a snap-on groove (204) and a filter dehumidification plate (205); The snap-in groove (204) is symmetrically formed at the bottom end of the middle part of the convex top plate (101) and the top end of the edge part of the convex bottom plate (102); the filter dehumidification plate (205) is snap-fitted to the inner side of the snap-in groove (204); the snap-in groove (204) is used to separate the area where the heat dissipation hole (203) and the arc-shaped hollow plate (201) are located; the snap-in groove (204) is composed of a filter screen and a desiccant; the desiccant is wrapped in the middle by the filter screens distributed front and back; the snap-in groove (204) is used to filter dust and water vapor in the air flowing from the heat dissipation hole (203) to the arc-shaped hollow plate (201).

4. A nickel-metal hydride battery cover according to claim 2, characterized in that: The arc-shaped hollow plates (201) are provided in plurality and are distributed in a matrix at the top end of the middle part of the convex bottom plate (102), and the top of the arc-shaped hollow plates (201) is close to the bottom end of the middle part of the convex top plate (101) but does not contact the bottom end of the middle part of the convex top plate (101).

5. The nickel-metal hydride battery cover according to claim 3, characterized in that: The edges of the convex top plate (101) and the convex bottom plate (102) are symmetrically provided with mounting holes (103), and a connecting column (104) is welded and fixed at a position in the middle of the convex top plate (101) and the convex bottom plate (102) aligned with the mounting holes (103).

6. A nickel-metal hydride battery cover according to claim 5, characterized in that: The mounting holes (103) and the heat dissipation holes (203) are formed on the convex top plate (101) by a punching process, and the mounting holes (103) and the ventilation holes (202) are formed on the convex bottom plate (102) by a punching process. The shapes of the convex top plate (101) and the convex bottom plate (102) are cut and bent according to product requirements, and the arc-shaped hollow plate (201) is fixed to the top end of the middle part of the convex bottom plate (102) by welding.

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