Metal plate waterproof structure

Abstract

The utility model relates to the technical field of battery waterproofing, and solves the problems that a battery waterproof box is not tight in sealing and water is easy to enter heat dissipation holes. The sheet metal waterproof structure comprises a bottom box, a cavity for containing a battery pack is formed in the bottom box, the bottom box is open, a heat dissipation opening is formed in the bottom box, a top cover covers an end opening of the bottom box, a sealing clamping piece is arranged between the top cover and the side wall of the bottom box in a clamped mode, and the top cover comprises a sealing cover body and wall attaching strips installed on the periphery of the sealing cover body. The wall attaching strips are arranged on the side wall of the sealing cover body in a protruding mode, connecting holes are formed in the wall attaching strips and the sealing cover body, gaps are formed between the adjacent wall attaching strips, the sealing clamping piece comprises a sealing plate which is installed at the upper ends of the wall attaching strips and connected with the side wall of the sealing cover body, and the width of the sealing plate is smaller than the forming diameter of the connecting holes. The sealing plate is also provided with an arc groove matched with the connecting hole in diameter, and the sealing plate is installed on the periphery of the sealing cover body.

Description

Technical Field

[0001] The utility model relates to the technical field of battery waterproofing, in particular to a sheet metal waterproofing structure. Background Art

[0002] A battery pack is a large energy storage component composed of multiple single cells connected in series. It can store and stably transmit a large amount of electrical energy and is suitable for many mobile devices. The battery pack has a positive and negative pole distinction. When the positive and negative poles of the battery pack are directly short-circuited, the battery will short-circuit and heat up, and in severe cases, it may even explode. Therefore, a waterproof shell must be provided on the outside of the battery pack. After the battery has been running at high load for a period of time, it will generate a lot of heat, so heat dissipation holes have to be provided in the shell. However, the heat dissipation holes have the problem of the battery pack short-circuiting after wading through water, and it is in urgent need of improvement. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the present invention provides a sheet metal waterproof structure, which solves the problems of loose sealing of the battery waterproof box and water easily entering the heat dissipation holes.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a sheet metal waterproof structure, comprising a bottom box, wherein a cavity for accommodating a battery pack is defined in the bottom box, the bottom box is open and provided with a heat dissipation port, the port of the heat dissipation port is covered with a top cover, and a sealing clamp is sandwiched between the top cover and the side wall of the bottom box;

[0005] The top cover includes a cover body and wall strips installed around the cover body. The wall strips are protruding from the side walls of the cover body. Connecting holes are opened on the wall strips and the cover body, and there are gaps between adjacent wall strips.

[0006] The sealing clamp includes a sealing plate installed on the upper end of the wall strip and connected to the side wall of the cover body. The width of the sealing plate is smaller than the diameter of the connection hole, and an arc groove adapted to the diameter of the connection hole is also opened on the sealing plate. The sealing plate is installed around the cover body, and adjacent sealing plates are connected by setting connecting columns.

[0007] In one embodiment, the bottom box and the cover body are spaced apart by a distance that is less than the thickness of the sealing plate, the connecting column is in the shape of a straight rod, and its downwardly extending cutoff surface is horizontal to the bottom surface of the cover body;

[0008] An embedded groove adapted to the movement trajectory of the sealing plate is opened inside the bottom box. The embedded groove extends upward and is connected to the outside world. An extension groove adapted to the length and width of the connecting column extends downward at one end of the embedded groove. The depth of the extension groove is equal to that of the embedded groove.

[0009] In one of the embodiments, the side plate of the bottom box is provided with a connecting hole matched with the final staying position of the cover body, and the diameter of the connecting hole is larger than that of the connecting hole.

[0010] In one of the embodiments, the connecting hole is connected with the connecting hole through a connecting bolt, the connecting bolt comprises a bolt head and a bolt rod, the bolt head is provided in a frustum shape and connected with the bolt rod, the diameter of the connecting hole is matched with the diameter of the bolt rod, and the diameter of the connecting hole is matched with the diameter of the bolt head.

[0011] In one of the embodiments, a rubber layer is arranged in the extension groove to enhance the connecting strength of the extension groove and the connecting column.

[0012] In one of the embodiments, a rubber strip is arranged at the upper end of the sealing plate to compensate for the height difference between the sealing plate and the top end of the cover body.

[0013] Compared with the prior art, the utility model provides a metal plate waterproof structure, has the following beneficial effects:

[0014] In the technical scheme, the bottom box is wrapped outside the battery pack, so that the influence of water vapor, such as precipitation or condensed water, on the function of the battery pack is reduced, and the sealing clamp is arranged between the bottom box and the top cover, so that the connecting tightness between the bottom box and the top cover is increased.

[0015] The utility model discloses an inner embedding groove matched with the motion track of the sealing plate is arranged in the bottom box, and the extension groove matched with the length and width of the connecting column is arranged at one end of the inner embedding groove, thereby, the limiting effect on the whole sealing clamp is generated, the whole position of the top cover is further limited by the limiting of the sealing clamp, the alignment of the connecting hole and the connecting hole is facilitated, and the connecting efficiency of the bottom box and the top cover is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure combination schematic diagram of the sealing clamp and the bottom box of the utility model;

[0019] Figure 3 It is the bottom box structure schematic diagram of the utility model;

[0020] Figure 4The utility model discloses a top cover and sealing clamp structure schematic diagram.

[0021] In the drawing: 1, bottom box; 2, heat dissipation opening; 3, top cover; 31, cover body; 32, wall sticking strip; 33, link hole; 4, sealing clamp; 41, sealing plate; 42, arc groove; 43, connecting column; 5, inlay groove; 6, extension groove; 7, connecting hole; 8, connecting bolt; 81, bolt head; 82, bolt rod; 9, rubber strip. DETAILED DESCRIPTION

[0022] The implementation of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0023] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] Figures 1-4 For an embodiment of the utility model, the battery pack is a large energy storage assembly composed of a plurality of single batteries in series, which can store and stably deliver a large capacity of electric energy, and is suitable for more mobile devices. The battery pack has positive and negative electrode differentiation. When the positive and negative electrodes of the battery pack are directly short-circuited, the battery will be short-circuited and heated, and even explosion may occur. Therefore, a waterproof shell must be provided outside the battery pack. The battery will generate a large amount of heat after high-load operation for a period of time, and a heat dissipation hole must be provided on the shell. However, the heat dissipation hole may cause short circuit of the battery pack after being involved in water, and improvement is urgently needed. Based on the above problems, a sheet metal waterproof structure is described in the present scheme. Firstly, the heat dissipation opening 2 is provided on the bottom surface of the bottom box 1 to reduce the probability of water entering. On the other hand, based on the purpose of reducing the probability of water entering the battery pack, the bottom box 1 is wrapped outside the battery pack in the present scheme, so as to reduce the influence of water vapor, such as precipitation or condensed water, entering the inside of the battery pack on its function. At the same time, the sealing clamp 4 is arranged between the bottom box 1 and the top cover 3, which can increase the connection tightness between the bottom box 1 and the top cover 3, reduce the distance between the components, and thus reduce the probability of rainwater entering from the top.

[0025] The sheet metal waterproof structure specifically comprises a bottom box 1, a cavity for accommodating a battery pack is formed in the bottom box 1, the bottom box 1 is provided in an open manner, and a heat dissipation opening 2 is arranged on the bottom surface of the bottom box 1; the heat dissipation opening 2 is arranged to balance the temperature inside and outside the bottom box 1, and on the other hand, based on the formation and dripping of precipitation or condensed water, the water droplets can actively flow into the bottom box 1 through the heat dissipation opening 2, and the safety of the battery pack in the bottom box 1 can be improved; a top cover 3 is arranged on the port of the bottom box 1, and a distance is arranged between the top cover 3 and the bottom box 1; a sealing clamp 4 is arranged between the top cover 3 and the side wall of the bottom box 1.

[0026] The top cover 3 comprises a cover body 31 and a wall-sticking strip 32 arranged around the cover body 31; the wall-sticking strip 32 is arranged on the side wall of the cover body 31; a connecting hole 33 is arranged on the wall-sticking strip 32 and the cover body 31; the connecting hole 33 is arranged above the center line of the wall-sticking strip 32, and the diameter of the connecting hole 33 is greater than 0.5 times the width of the wall-sticking strip 32; thus, the connecting hole 33 is arranged on the side wall of the wall-sticking strip 32 and the cover body 31; a gap is arranged between adjacent wall-sticking strips 32; the gap is arranged at the joint of the side wall of the bottom box 1; a connecting hole 7 is arranged on the side plate of the bottom box 1 and is matched with the final position of the cover body 31; the diameter of the connecting hole 33 is greater than the diameter of the connecting hole 7. The connecting hole 33 and the connecting hole 7 are connected by a connecting bolt 8; the connecting bolt 8 comprises a bolt head 81 and a bolt rod 82; the bolt head 81 is arranged in a frustum shape and is connected to the bolt rod 82; the diameter of the connecting hole 33 is matched with the diameter of the bolt rod 82, and the diameter of the connecting hole 7 is matched with the diameter of the bolt head 81.

[0027] The sealing clamp 4 comprises a sealing plate 41 arranged on the upper end of the wall-sticking strip 32 and connected to the side wall of the cover body 31; the width of the sealing plate 41 is smaller than the diameter of the connecting hole 33; an arc groove 42 matched with the diameter of the connecting hole 33 is arranged on the sealing plate 41; the sealing plate 41 is arranged around the cover body 31; adjacent sealing plates 41 are connected by a connecting column 43; a rubber strip 9 is arranged on the upper end of the sealing plate 41 to compensate for the difference between the sealing plate 41 and the top end of the cover body 31. A part of the connecting column is arranged in the gap between adjacent wall-sticking strips 32; a distance is arranged between the bottom box 1 and the cover body 31, and the distance is smaller than the thickness of the sealing plate 41; the connecting column is in a straight rod shape, and the downwardly extending stop surface of the connecting column is horizontal to the bottom surface of the cover body 31, so that the bottom surfaces of the same height are generated, and the top cover 3 can be stably placed during non-use or transportation.

[0028] The inner box 1 is internally provided with an embedded groove 5 adapted to the movement track of the sealing plate 41, the embedded groove 5 extends upward and is communicated with the outside, one end of the embedded groove 5 downwardly extends an extension groove 6 adapted to the length and width of the connecting column, and the extension groove 6 is equal in depth to the embedded groove 5, and the extension groove 6 is provided with a rubber layer to enhance the connecting strength of the extension groove 6 and the connecting column 43. Thus, a limiting effect on the whole sealing clamp 4 is generated, and the whole position of the top cover 3 is further limited by the limiting of the sealing clamp 4, which facilitates the alignment of the connecting hole 7 and the connecting hole 33, thereby improving the connecting efficiency of the bottom box 1 and the top cover 3.

[0029] It should be noted that in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sheet metal waterproof structure comprising a bottom box (1), characterized in that: The bottom box (1) is provided with a cavity for accommodating the battery pack, and the bottom box (1) is provided with a heat dissipation port (2) and covered with a top cover (3) at the port. The top cover (3) comprises a cover body (31) and a wall-sticking strip (32) mounted around the cover body (31), the wall-sticking strip (32) is protruded on the side wall of the cover body (31), and the wall-sticking strip (32) and the cover body (31) are provided with a connecting hole (33), and the adjacent wall-sticking strips (32) are spaced apart. The sealing plate (41) is mounted on the upper end of the wall-sticking strip (32) and connected with the side wall of the cover body (31), the width of the sealing plate (41) is smaller than the diameter of the connecting hole (33), and the arc groove (42) with the same diameter as the connecting hole (33) is also provided on the sealing plate (41), and the sealing plate (41) is mounted around the cover body (31), and the adjacent sealing plates (41) are connected by the connecting column (43).

2. The sheet metal waterproof structure according to claim 1, characterized in that: The distance between the bottom box (1) and the cover body (31) is less than the thickness of the sealing plate (41), the connecting column is a straight rod, and the downward extending stop surface is horizontal to the bottom surface of the cover body (31); The bottom box (1) is provided with an embedded groove (5) corresponding to the movement track of the sealing plate (41), the embedded groove (5) extends upward and is connected to the outside, and the embedded groove (5) is provided with an extension groove (6) corresponding to the length and width of the connecting column at one end.

3. The sheet metal waterproof structure according to claim 2, characterized in that: The side plate of the bottom box (1) is provided with a connecting hole (7) corresponding to the final position of the cover body (31), and the diameter of the connecting hole (33) is greater than the diameter of the connecting hole (33).

4. The sheet metal waterproof structure according to claim 3, characterized in that: The connecting hole (33) and the connecting hole (7) are connected by the connecting bolt (8), the connecting bolt (8) comprises a bolt head (81) and a bolt rod (82), the bolt head (81) is provided in a conical shape and connected with the bolt rod (82), the diameter of the connecting hole (33) is adapted to the diameter of the bolt rod (82), and the diameter of the connecting hole (7) is adapted to the diameter of the bolt head (81).

5. The sheet metal waterproof structure according to claim 2, characterized in that: The extension groove (6) is provided with a rubber layer to enhance the connection strength of the extension groove (6) and the connecting column (43).

6. The sheet metal waterproof structure according to claim 2, characterized in that: The upper end of the sealing plate (41) is provided with a rubber strip (9) to compensate for the difference between the sealing plate (41) and the top end of the cover body (31).

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