A waterproof nickel-hydrogen battery pack

Abstract

The utility model discloses a waterproof nickel-hydrogen battery pack, which relates to the technical field of nickel-hydrogen battery packs, and includes a shell assembly composed of a bottom shell and a top shell, and a sealing assembly, wherein the sealing assembly is used to increase the sealing performance of the joint between the top shell and the bottom shell. The utility model sets a sealing assembly, and cooperates with a return-shaped sealing ring and a lower sealing groove and an upper sealing groove return-shaped rubber pad to prevent water from penetrating into the inner cavity through the gap between the mounting hole and the bolt. The C-shaped folding edge can fill the gap at the joint of the edge of the top shell and the bottom shell, and the n-shaped folding edge is wrapped around the outside of the C-shaped folding edge, thereby further improving the overall sealing performance of the shell assembly. In addition, the outer edge composed of the n-shaped folding edge and the C-shaped folding edge can provide a certain external buffer zone for the shell assembly, thereby buffering the collision during daily transfer and installation, and preventing the shell assembly from being deformed and causing penetration.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel-hydrogen battery packs, in particular to a waterproof nickel-hydrogen battery pack. 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. From the perspective of battery capacity, the capacity of nickel-metal hydride rechargeable battery of the same size is about 1.5 to 2 times higher than that of nickel-cadmium battery, and there is no cadmium pollution. It has been widely used in various small portable electronic devices such as mobile communications and laptop computers in my country, while larger capacity nickel-metal hydride batteries are gradually used in gasoline and electric hybrid vehicles.

[0003] An automotive 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 two upper and lower shells, and the two shells are fixed around by multiple bolts. In this way, external water can easily penetrate into the shell through the gaps between the multiple mounting holes, and the sealing of the shell needs to be further strengthened. Based on this, a waterproof nickel-hydrogen battery pack is provided. Utility Model Content

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

[0005] To achieve the above object, the utility model provides the following technical solutions: a waterproof nickel-hydrogen battery pack, comprising a housing assembly consisting of a bottom shell and a top shell, wherein the bottom shell and the top shell are arranged vertically, and an inner cavity formed by the bottom shell and the top shell is used to place the nickel-hydrogen battery, and a sealing assembly is provided at the joint of the bottom shell and the top shell, and the sealing assembly is used to increase the sealing performance of the joint between the top shell and the bottom shell;

[0006] The sealing assembly includes a first sealing member and a second sealing member;

[0007] The first sealing member is distributed between the bottom shell and the top shell and extends to the outside of the top shell, and is used to fill the joint gap between the bottom shell and the top shell;

[0008] The second sealing member is distributed on the top of the top shell and extends to wrap around the outside of the first sealing member, so as to fill the gap between the top shell and the fixing bolts and further strengthen the sealing between the first sealing member and the top shell.

[0009] As a further solution of the utility model: the first sealing member includes a return-shaped sealing ring and a C-shaped folded edge;

[0010] The top edge of the bottom shell and the bottom edge of the top shell are respectively provided with a lower sealing groove and an upper sealing groove, and the upper and lower ends of the return-shaped sealing ring are respectively clamped on the inner sides of the upper sealing groove and the lower sealing groove;

[0011] The C-shaped folded edge is fixed to the outer side of the return-shaped sealing ring and fits with the edge top of the bottom shell and the edge bottom of the top shell, and the C-shaped folded edge extends to wrap around the outer side and the top of the edge of the top shell.

[0012] As a further solution of the utility model: the second sealing member includes a return-shaped rubber pad and an n-shaped folded edge;

[0013] The return-shaped rubber pad is attached to the top edge of the top shell, and the outer edge of the return-shaped rubber pad extends to the inner side of the C-shaped folded edge;

[0014] The n-shaped folded edge is fixed to the top of the return-shaped rubber pad and wrapped around the portion of the C-shaped folded edge located on the outside of the top shell.

[0015] As a further solution of the utility model: the return rubber pad, the edge of the top shell, the C-shaped folded edge and the edge of the bottom shell are correspondingly provided with mounting holes, and the mounting holes on the bottom shell are internally formed with threaded grooves for tightening bolts.

[0016] As a further solution of the utility model: the mounting holes on the bottom shell and the top shell are distributed on the outer sides of the lower sealing groove and the upper sealing groove.

[0017] As a further solution of the utility model: the outer side of the vertical part of the C-shaped fold is formed with an inclined protrusion, and the inner side of the vertical part of the n-shaped fold is formed with a slot, and the inclined protrusion and the slot are mutually engaged to increase the connection force between the C-shaped fold and the n-shaped fold.

[0018] As a further solution of the present invention: the first sealing member and the second sealing member are respectively integrally formed by an injection molding process, and the bottom shell and the top shell are respectively integrally formed by a stamping process.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] By setting up a sealing assembly, through the cooperation of the return-shaped sealing ring and the lower sealing groove and the upper sealing groove return-shaped rubber pad, water can be prevented from penetrating into the inner cavity through the gap between the mounting hole and the bolt, and the C-shaped fold can fill the gap at the edge joint of the top shell and the bottom shell. At the same time, the n-shaped fold is wrapped around the outside of the C-shaped fold, which can prevent water from penetrating into the edge joint of the top shell and the bottom shell through the gap between the C-shaped fold and the top shell, thereby further improving the overall sealing of the shell assembly. In addition, the external edge formed by the n-shaped fold and the C-shaped fold can provide a certain external buffer zone for the shell assembly, thereby buffering the collision during daily transfer and installation, and avoiding deformation of the shell assembly 1 to cause penetration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural sectional view of the utility model;

[0023] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the position B in the middle;

[0024] Figure 4 It is the structural explosion diagram of the utility model;

[0025] Figure 5 It is a structural cross-sectional view of the housing component and the sealing component of the utility model;

[0026] Figure 6 For the utility model Figure 5 An enlarged schematic diagram of position A in the middle.

[0027] In the figure: 1. shell assembly; 101. bottom shell; 102. top shell; 103. lower sealing groove; 104. upper sealing groove; 2. nickel-metal hydride battery; 3. sealing assembly; 301. first sealing member; 3011. return-shaped sealing ring; 3012. C-shaped folding edge; 3013. inclined protrusion; 302. second sealing member; 3021. return-shaped rubber pad; 3022. n-shaped folding edge; 3023. card slot; 4. mounting hole. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figures 1 to 6In an embodiment of the utility model, a waterproof nickel-hydrogen battery pack includes a housing component 1 composed of a bottom shell 101 and a top shell 102, the bottom shell 101 and the top shell 102 are distributed up and down, and the inner cavity formed by the bottom shell 101 and the top shell 102 is used to place the nickel-hydrogen battery 2, and a sealing component 3 is provided at the joint of the bottom shell 101 and the top shell 102, and the sealing component 3 is used to increase the sealing performance of the joint between the top shell 102 and the bottom shell 101;

[0030] The sealing assembly 3 includes a first sealing member 301 and a second sealing member 302;

[0031] The first sealing member 301 is distributed between the bottom shell 101 and the top shell 102 and extends to the outside of the top shell 102, and is used to fill the joint gap between the bottom shell 101 and the top shell 102;

[0032] The second sealing member 302 is distributed on the top of the top shell 102 and extends to wrap around the outside of the first sealing member 301, so as to fill the gap between the top shell 102 and the fixing bolts and further strengthen the sealing between the first sealing member 301 and the top shell 102;

[0033] The first sealing member 301 includes a return-shaped sealing ring 3011 and a C-shaped folded edge 3012;

[0034] The top edge of the bottom shell 101 and the bottom edge of the top shell 102 are respectively provided with a lower sealing groove 103 and an upper sealing groove 104, and the upper and lower ends of the return-shaped sealing ring 3011 are respectively clamped on the inner sides of the upper sealing groove 104 and the lower sealing groove 103;

[0035] The C-shaped folded edge 3012 is fixed to the outer side of the circular sealing ring 3011 and fits with the top edge of the bottom shell 101 and the bottom edge of the top shell 102, and the C-shaped folded edge 3012 extends to wrap around the outer side and top edge of the top shell 102;

[0036] The second sealing member 302 includes a return-shaped rubber pad 3021 and an n-shaped folded edge 3022;

[0037] The return-shaped rubber pad 3021 is attached to the top edge of the top shell 102 , and the outer edge of the return-shaped rubber pad 3021 extends to the inner side of the C-shaped fold 3012 ;

[0038] The n-shaped folded edge 3022 is fixed to the top of the return-shaped rubber pad 3021 and wrapped around the portion of the C-shaped folded edge 3012 located on the outside of the top shell 102;

[0039] The mounting holes 4 are correspondingly opened on the return rubber pad 3021, the edge of the top shell 102, the C-shaped folded edge 3012 and the edge of the bottom shell 101, and the mounting holes 4 on the bottom shell 101 are formed with threaded grooves for tightening bolts. The mounting holes 4 on the bottom shell 101 and the top shell 102 are distributed on the outside of the lower sealing groove 103 and the upper sealing groove 104.

[0040] In this embodiment, when assembling the nickel-metal hydride battery pack, the nickel-metal hydride batteries can be arranged in sequence inside the bottom shell 101, and then the first sealing member 301 is installed on the upper surface of the bottom shell 101, so that the bottom of the circular sealing ring 3011 is inserted into the lower sealing groove 103;

[0041] Then, the second sealing member 302 is connected to the top shell 102 so that the return-shaped rubber pad 3021 is attached to the upper surface of the edge of the top shell 102 (it should be supplemented that the middle part of the top shell 102 is convex, and the inner size of the return-shaped rubber pad 3021 matches the outer wall size of the convexity);

[0042] Then the top shell 102 is docked with the bottom shell 101, and the sealing groove 104 on it is stuck in the upper part of the return-shaped sealing ring 3011. At the same time, in this process, the edge of the top shell 102 is squeezed on the upper part of the C-shaped folded edge 3012 to make it expand outward, so that the edge of the top shell 102 can move down smoothly. When the edge of the top shell 102 fits with the lower part of the C-shaped folded edge 3012, the upper part of the C-shaped folded edge 3012 loses the squeezing force and will be reset under the action of its own elastic force, and the inner side of the upper part of the C-shaped folded edge 3012 will fit with the top of the return-shaped rubber pad 3021 (it should be noted that: the top of the upper part of the C-shaped folded edge 3012 is an arc surface structure, which is convenient for the C-shaped folded edge 3012 to be deformed under force, and the outer top of the return-shaped rubber pad 3021 is also an arc surface structure, which is convenient for the C-shaped folded edge 3012 to be reset and clamped with the return-shaped rubber pad 302);

[0043] After the top shell 102 and the bottom shell 101 are assembled, bolts can be passed through the mounting holes on the return rubber pad 3021, the top shell 102, and the C-shaped folded edge 3012 in sequence, and finally threadedly connected with the thread groove on the bottom shell 101. The top shell 102 and the bottom shell 101 can be fixed by tightening multiple bolts, thus completing the assembly of the nickel-hydrogen battery pack;

[0044] By cooperating with the return sealing ring 3011 and the lower sealing groove 103 and the upper sealing groove 104, the area where the mounting hole 4 is located is completely separated from the inner cavity of the top shell 102 and the bottom shell 101, thereby preventing water from penetrating into the inner cavity through the gap between the mounting hole 4 and the bolt, and the C-shaped fold 3012 can fill the gap at the edge joint of the top shell 102 and the bottom shell 101. At the same time, the n-shaped fold 3022 is wrapped around the outside of the C-shaped fold 3012, which can prevent water from penetrating into the edge joint of the top shell 102 and the bottom shell 101 through the gap between the C-shaped fold 3012 and the top shell 102, thereby further improving the overall sealing of the shell assembly 1. In addition, the external edge formed by the n-shaped fold 3022 and the C-shaped fold 3012 can provide a certain external buffer zone for the shell assembly 1, thereby buffering the collision during daily transfer and installation, and preventing the shell assembly 1 from deformation and causing penetration.

[0045] Please refer to Figures 2 to 6 An inclined protrusion 3013 is formed on the outer side of the vertical part of the C-shaped fold 3012, and a clamping groove 3023 is formed on the inner side of the vertical part of the n-shaped fold 3022. The inclined protrusion 3013 and the clamping groove 3023 are mutually clamped to increase the connection force between the C-shaped fold 3012 and the n-shaped fold 3022.

[0046] In this embodiment, when the n-shaped folded edge 3022 is sleeved on the outside of the C-shaped folded edge 3012, the inclined protrusion 3013 and the locking groove 3023 are locked with each other, so that the n-shaped folded edge 3022 and the C-shaped folded edge 3012 are not easy to loosen.

[0047] Please refer to Figures 1 to 6 The first sealing member 301 and the second sealing member 302 are integrally formed by an injection molding process, and the bottom shell 101 and the top shell 102 are integrally formed by a stamping process.

[0048] In this embodiment, the first sealing member 301 and the second sealing member 302 are produced by injection molding, and the bottom shell 101 and the top shell 102 are processed by stamping, so that the production process of the entire device is simple and easy to promote and use.

[0049] 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 waterproof nickel-hydrogen battery pack, comprising a housing assembly (1) consisting of a bottom shell (101) and a top shell (102), wherein the bottom shell (101) and the top shell (102) are arranged vertically, and an inner cavity formed by the bottom shell (101) and the top shell (102) is used to place a nickel-hydrogen battery (2), characterized in that: A sealing component (3) is provided at the joint between the bottom shell (101) and the top shell (102), and the sealing component (3) is used to increase the sealing performance of the joint between the top shell (102) and the bottom shell (101); The sealing assembly (3) comprises a first sealing component (301) and a second sealing component (302); The first sealing member (301) is distributed between the bottom shell (101) and the top shell (102) and extends to the outside of the top shell (102), and is used to fill the joint gap between the bottom shell (101) and the top shell (102); The second sealing member (302) is distributed on the top of the top shell (102) and extends to wrap around the outside of the first sealing member (301), and is used to fill the gap between the top shell (102) and the fixing bolt, and further strengthen the seal between the first sealing member (301) and the top shell (102).

2. A waterproof nickel-hydrogen battery pack according to claim 1, characterized in that: The first sealing member (301) comprises a return-shaped sealing ring (3011) and a C-shaped folded edge (3012); A lower sealing groove (103) and an upper sealing groove (104) are respectively formed at the top edge of the bottom shell (101) and the bottom edge of the top shell (102), and the upper and lower ends of the return-shaped sealing ring (3011) are respectively clamped on the inner sides of the upper sealing groove (104) and the lower sealing groove (103); The C-shaped folded edge (3012) is fixed to the outside of the return-shaped sealing ring (3011) and fits with the edge top of the bottom shell (101) and the edge bottom of the top shell (102), and the C-shaped folded edge (3012) extends to wrap around the outside and top of the edge of the top shell (102).

3. A waterproof nickel-hydrogen battery pack according to claim 1, characterized in that: The second sealing member (302) comprises a return-shaped rubber pad (3021) and an n-shaped folded edge (3022); The return-shaped rubber pad (3021) is attached to the top edge of the top shell (102), and the outer edge of the return-shaped rubber pad (3021) extends to the inner side of the C-shaped folded edge (3012); The n-shaped folded edge (3022) is fixed to the top of the return-shaped rubber pad (3021) and wrapped around the portion of the C-shaped folded edge (3012) located outside the top shell (102).

4. A waterproof nickel-hydrogen battery pack according to claim 3, characterized in that: The retractable rubber pad (3021), the edge of the top shell (102), the C-shaped folded edge (3012) and the edge of the bottom shell (101) are correspondingly provided with mounting holes (4), and a threaded groove for tightening a bolt is formed inside the mounting hole (4) on the bottom shell (101).

5. A waterproof nickel-hydrogen battery pack according to claim 4, characterized in that: The mounting holes (4) on the bottom shell (101) and the top shell (102) are distributed on the outside of the lower sealing groove (103) and the upper sealing groove (104).

6. A waterproof nickel-hydrogen battery pack according to claim 3, characterized in that: An inclined protrusion (3013) is formed on the outer side of the vertical portion of the C-shaped fold (3012), and a clamping groove (3023) is formed on the inner side of the vertical portion of the n-shaped fold (3022); the inclined protrusion (3013) and the clamping groove (3023) are mutually clamped to increase the connection force between the C-shaped fold (3012) and the n-shaped fold (3022).

7. A waterproof nickel-hydrogen battery pack according to claim 1, characterized in that: The first sealing member (301) and the second sealing member (302) are respectively integrally formed by an injection molding process, and the bottom shell (101) and the top shell (102) are respectively integrally formed by a stamping process.

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