Waterproof battery box and battery pack

Abstract

The utility model provides a waterproof battery box and a battery pack. The waterproof battery box comprises a shell structure and a cover body, a containing groove is formed in the shell structure, and the cover body covers a groove opening of the containing groove; the waterproof battery box further comprises a mounting bracket and a locking piece; a waterproof glue layer is arranged between the periphery of the cover body and the notch of the accommodating groove; the mounting bracket is arranged in the accommodating groove, and the cover body is clamped on the first end surface of the mounting bracket; the locking piece penetrates through the first end face of the mounting bracket and is in threaded connection with the groove bottom of the accommodating groove, so that the waterproof performance of the waterproof battery box can be improved, the locking piece can be prevented from being in contact with external air and moisture, and the situation that the locking piece is exposed in the external air and moisture and rusted is reduced; and finally, the appearance of the waterproof battery box is more attractive.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy batteries, and in particular to a waterproof battery box and a battery pack. Background Art

[0002] With the development of new energy, new energy batteries have also developed rapidly, and transportation vehicles powered by battery boxes have become the first choice for more and more people. Waterproofness is an important indicator for judging the safety of battery boxes. For this reason, most manufacturers will use screws to lock the battery shell on the box body when manufacturing and producing battery boxes, and then squeeze the waterproof ring to waterproof it in order to ensure the safety of the battery box.

[0003] For example, announcement number CN216698569U discloses a waterproof sealing structure for the battery pack and screw holes, including an upper shell, a lower cover and a battery pack located in the upper shell and the lower cover, wherein a plurality of locking screws are provided on the circumferential sides of the upper shell and the lower cover, and a battery pack sealing ring is provided at the joint between the upper shell and the lower cover to avoid the locking screws, and at least one intermediate screw hole for locking the screw is provided in the middle of the upper surface of the upper shell, a first sealing ring is provided at the bottom of the intermediate screw hole, an intermediate screw is locked in the intermediate screw hole, a circular screw sealing ring is provided on the intermediate screw, and the lower surface of the screw sealing ring cooperates with a convex ring with a semicircular cross-section on the first sealing ring for sealing.

[0004] However, the design of the waterproof sealing structure around the battery pack and the screw holes has the following problems:

[0005] Although the above-mentioned waterproof battery box can achieve a certain waterproof effect by connecting the box body and the upper cover by screws, since the box body and the upper cover need to be connected by screws, screw holes need to be opened on the surface of the box body, so that external moisture can easily enter the box body through the screw holes, which makes it easy for the battery in the waterproof battery box to short-circuit. In addition, the screws are fully exposed to oxygen and are corroded by moisture for a long time, so that the screws may rust, resulting in an unsightly battery box. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a waterproof battery box and battery pack without any screws on the battery appearance and with good waterproof performance.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A waterproof battery box comprises a shell structure and a cover body; a receiving groove is provided in the shell structure, and the cover body is arranged to cover the notch of the receiving groove;

[0009] The waterproof battery box also includes a mounting bracket and a locking member;

[0010] A waterproof rubber layer is provided between the periphery of the cover body and the notch of the receiving groove; the mounting bracket is arranged in the receiving groove, and the cover body is clamped on the first end face of the mounting bracket; the locking member passes through the first end face of the mounting bracket and is screwed to the bottom of the receiving groove.

[0011] In one embodiment, a first glue dispensing groove is opened on the periphery of the cover body; the groove opening of the accommodating groove protrudes into the first glue dispensing groove and forms a first water retaining boss; the waterproof glue layer is arranged between the groove wall of the first glue dispensing groove and the first water retaining boss.

[0012] In one of the embodiments, a plurality of ears are protruding from the cover body, and the plurality of ears are arranged at intervals along the periphery of the cover body; a plurality of hooks are provided on the periphery of the first end surface of the mounting bracket; the hooks are arranged corresponding to the ears one by one, and are engaged in the corresponding holes of the ears.

[0013] In one embodiment, the hook is an L-shaped hook, and the hole is a rectangular hole.

[0014] In one embodiment, there are multiple locking members, and the multiple locking members are correspondingly arranged at each corner of the mounting bracket.

[0015] In one of the embodiments, a through hole is provided on the first end surface of the mounting bracket, the through hole is opposite to the bottom of the receiving groove, and the locking member passes through the through hole and is screwed to the bottom of the receiving groove.

[0016] In one embodiment, the shell structure includes a middle tube and a bottom cover; the bottom cover sealing cover is arranged at the bottom end of the middle tube, and forms the receiving groove with the inner cavity of the middle tube; the notch of the receiving groove is opened at the top end of the middle tube; a screw hole is opened on the bottom cover, and the mounting bracket is arranged in the inner cavity of the middle tube; the screw hole is opposite to the through hole and is screwed to the locking member.

[0017] In one embodiment, a second glue dispensing groove is opened at the bottom end of the middle tube; the peripheral edge of the bottom cover is protruded on the second water retaining boss, the second water retaining boss is accommodated in the second glue dispensing groove, and a waterproof adhesive layer is provided between the second water retaining boss and the groove wall of the second glue dispensing groove.

[0018] In one embodiment, the locking member is a lock cap body and a stud body; the stud body is passed through the through hole and screwed to the bottom of the accommodating groove; the lock cap body is arranged at one end of the stud body close to the cover body and presses against the first end face of the mounting bracket.

[0019] A battery pack comprises a plurality of battery cells and a waterproof battery box according to any one of the above embodiments; the plurality of battery cells are arranged on the mounting bracket.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] 1) The mounting bracket is arranged in the receiving groove, and the locking member penetrates the mounting bracket and is screwed to the bottom of the receiving groove, so that the mounting bracket can be fixed in the receiving groove. At the same time, by making the cover body cover the notch of the receiving groove, and setting the waterproof adhesive layer between the periphery of the cover body and the notch of the receiving groove, the notch of the receiving groove can be sealed, which can not only increase the waterproof performance of the waterproof battery box, but also prevent the locking member from contacting with external air and moisture.

[0022] 2) Compared with the waterproof battery box of the prior art, the locking member of the waterproof battery box is located in the receiving groove, and there is no need to open a threaded hole on the cover body, thereby preventing the external moisture from entering the receiving groove through the threaded hole. At the same time, the locking member is isolated from the external air and moisture by the cover body covering the notch of the receiving groove, thereby reducing the rusting of the locking member when exposed to the external air and moisture, and finally making the appearance of the waterproof battery box more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic structural diagram of a waterproof battery box according to an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A cross-sectional view of the waterproof battery box shown;

[0026] Figure 3 for Figure 2 A partial enlarged view shown in the middle A;

[0027] Figure 4 for Figure 2 A partial enlarged view shown at B in the figure.

[0028] Figure numerals: 10, waterproof battery box; 100, shell structure; 110, middle tube; 1110, accommodating groove; 111a, first water retaining boss; 120, bottom cover; 1210, screw hole; 1220, second water retaining boss; 1230, second glue dispensing groove; 200, cover body; 210, first glue dispensing groove; 220, hanging ear; 2210, clamping hole; 300, mounting bracket; 310, first end face; 3110, clamping hook; 3120, through hole; 400, locking piece; 410, lock cap body; 420, stud body; 500, waterproof glue layer; 600, waterproof adhesive layer. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] Combination Figure 1 and Figure 2As shown, a waterproof battery box 10 of an embodiment includes a shell structure 100, a cover body 200, a mounting bracket 300 and a locking member 400; a receiving groove 1110 is opened in the shell structure 100, and the cover body 200 is covered on the notch of the receiving groove 1110; a waterproof adhesive layer 500 is provided between the periphery of the cover body 200 and the notch of the receiving groove 1110; the mounting bracket 300 is arranged in the receiving groove 1110, and the cover body 200 is clamped on the first end face 310 of the mounting bracket 300; the locking member 400 passes through the first end face 310 of the mounting bracket 300, and is screwed to the bottom of the receiving groove 1110.

[0034] It can be understood that, because the mounting bracket 300 is disposed in the receiving groove 1110, and the locking member 400 penetrates the mounting bracket 300 and is screwed to the bottom of the receiving groove 1110, the mounting bracket 300 can be fixed in the receiving groove 1110. At the same time, by making the cover body 200 cover the notch of the receiving groove 1110, and arranging the waterproof adhesive layer 500 between the periphery of the cover body 200 and the notch of the receiving groove 1110, the notch of the receiving groove 1110 can be sealed, which can not only increase the waterproof performance of the waterproof battery box 10, but also prevent the locking member 400 from contacting with the outside air and moisture.

[0035] It can be understood that, compared with the waterproof battery box 10 of the prior art, the above waterproof battery box 10, the locking member 400 is located in the receiving groove 1110, and there is no need to open a threaded hole on the cover body 200, thereby preventing the external moisture from entering the receiving groove 1110 through the threaded hole. At the same time, the locking member 400 is isolated from the external air and moisture by the cover body 200 covering the notch of the receiving groove 1110, thereby reducing the rusting of the locking member 400 when exposed to the external air and moisture, and finally making the appearance of the waterproof battery box 10 more beautiful.

[0036] Combination Figure 2 and Figure 3 As shown, specifically, the periphery of the cover body 200 is provided with a first glue-dispensing groove 210; the notch of the receiving groove 1110 protrudes into the first glue-dispensing groove 210, and a first water-blocking boss 111a is formed; and the waterproof adhesive layer 500 is arranged between the groove wall of the first glue-dispensing groove 210 and the first water-blocking boss 111a. It can be understood that by providing the first glue-dispensing groove 210 on the periphery of the cover body 200, and the notch of the receiving groove 1110 protrudes into the first glue-dispensing groove 210 to form the first water-blocking boss 111a, when water enters the gap, the first water-blocking boss 111a and the waterproof adhesive layer 500 can effectively isolate the water from entering the receiving groove 1110, thereby ensuring the waterproofness between the cover body 200 and the receiving groove 1110.

[0037] Combination Figure 1 and Figure 2As shown, specifically, a plurality of ears 220 are protruding from the cover body 200, and the plurality of ears 220 are arranged at intervals along the periphery of the cover body 200; a plurality of hooks 3110 are arranged on the periphery of the first end face 310 of the mounting bracket 300; the hooks 3110 are arranged corresponding to the ears 220 one by one, and are clamped in the ears 220 of the corresponding ears 220. It can be understood that a plurality of hanging ears 220 are protruding from the cover body 200, and the hanging ears 220 are arranged at intervals along the periphery of the cover body 200, so that the hanging ears 220 are more evenly distributed on the cover body 200, and a plurality of hooks 3110 are arranged on the first end face 310 of the mounting bracket 300, and the hooks 3110 are correspondingly engaged with the hanging ears 220 one by one, so that when the cover body 200 and the mounting bracket 300 are installed, the hooks 3110 and the hanging ears 220 can be used for quick installation, and at the same time, screws are abandoned to install the cover body 200 and the mounting bracket 300, which can reduce the installation process and increase the efficiency of installation.

[0038] Combination Figure 1 and Figure 2 As shown, further, the hook 3110 is an L-shaped hook, and the hole 2210 is a rectangular hole. It can be understood that the hook 3110 is designed as an L-shaped hook, and the hole 2210 is designed as a rectangular hole. The hook 3110 and the hole 2210 can make it more convenient to buckle the cover 200 and the mounting bracket 300 together. At the same time, the hook 3110 is designed as an L-shaped hook and the hole 2210 is designed as a rectangular hole. The L-shaped hook can be well adapted to the rectangular hole, which is convenient for quickly assembling the waterproof battery box 10.

[0039] like Figure 1 As shown, further, there are multiple locking members 400, and the multiple locking members 400 are correspondingly arranged at each corner position of the mounting bracket 300. It can be understood that by arranging multiple locking members 400 at the corner positions of the mounting bracket 300, the locking members 400 pass through the mounting bracket 300, and the locking members 400 are arranged at the corner positions, so that the mounting bracket 300 can be stably connected to the bottom of the receiving groove 1110, the integrity of the receiving groove 1110 and the mounting bracket 300 is stabilized, and the mounting bracket 300 can be stably placed in the receiving groove 1110.

[0040] Combination Figure 1 and Figure 2As shown, specifically, a through hole 3120 is provided on the first end surface 310 of the mounting bracket 300, the through hole 3120 is opposite to the bottom of the receiving groove 1110, and the locking member 400 passes through the through hole 3120 and is screwed to the bottom of the receiving groove 1110. It can be understood that the through hole 3120 is provided on the first end surface 310 of the mounting bracket 300, and the locking member 400 passes through the through hole 3120 and is screwed to the bottom of the receiving groove 1110. By providing the through hole 3120 and screwing with the bottom of the groove, the locking member 400 will not be offset or tilted during the transportation and shaking of the waterproof battery box 10, and the position of the locking member 400 is stably fixed.

[0041] Combination Figure 1 and Figure 2 As shown, in one embodiment, the shell structure 100 includes a middle cylinder 110 and a bottom cover 120; the bottom cover 120 sealing cover is arranged at the bottom end of the middle cylinder 110, and forms a receiving groove 1110 with the inner cavity of the middle cylinder 110; the notch of the receiving groove 1110 is opened at the top of the middle cylinder 110; a screw hole 1210 is opened on the bottom cover 120, and the mounting bracket 300 is arranged in the inner cavity of the middle cylinder 110; the screw hole 1210 is opposite to the through hole 3120, and is screwed to the locking member 400. It can be understood that the bottom cover 120 is sealed at the bottom end of the middle cylinder 110 and forms a receiving groove 1110 with the inner cavity of the middle cylinder 110. The bottom cover 120 is provided with a screw hole 1210, and the screw hole 1210 is opposite to the through hole 3120, so that the locking member 400 passes through the through hole 3120 and is screwed with the screw hole 1210. At the same time, the mounting bracket 300 is arranged in the inner cavity of the middle cylinder 110, and is connected with the screw hole 1210 of the bottom cover 120 through the locking member 400, so that the mounting bracket 300 can be firmly placed in the inner cavity of the middle cylinder 110, and the sealing of the middle cylinder 110 and the bottom cover 120 is further stabilized.

[0042] Combination Figure 1 and Figure 4As shown, in this example, a second glue dispensing groove 1230 is opened at the bottom end of the middle tube 110; the peripheral edge of the bottom cover 120 is protruded on the second water retaining boss 1220, and the second water retaining boss 1220 is accommodated in the second glue dispensing groove 1230, and a waterproof adhesive layer 600 is provided between the second water retaining boss 1220 and the groove wall of the second glue dispensing groove 1230. It can be understood that a second glue-dispensing groove 1230 is provided at the bottom end of the middle tube 110, and a second water-blocking boss 1220 is convexly provided on the periphery of the bottom cover 120. When the bottom end of the middle tube 110 is sealed with the bottom cover 120, by arranging the waterproof adhesive layer 600 between the second water-blocking boss 1220 and the second glue-dispensing groove 1230, when moisture enters the gap, the second water-blocking boss 1220 and the waterproof adhesive layer 600 can effectively prevent moisture from entering the receiving groove 1110, thereby isolating the receiving groove 1110 of the middle tube 110 from external moisture, making it impossible for moisture to enter the receiving groove 1110, thereby protecting the mounting bracket 300 in the receiving groove 1110, and making the overall waterproofness of the waterproof battery box 10 better.

[0043] Combination Figure 1 and Figure 2 As shown, further, the locking member 400 is composed of a lock cap body 410 and a stud body 420; the stud body 420 is passed through the through hole 3120 and is screwed to the bottom of the accommodating groove 1110; the lock cap body 410 is arranged at one end of the stud body 420 close to the cover body 200, and is pressed against the first end face 310 of the mounting bracket 300. It can be understood that the locking member 400 is divided into a lock cap body 410 and a stud body 420. The stud body 420 is passed through the through hole 3120 and is screwed to the bottom of the receiving groove 1110. At the same time, the lock cap body 410 is pressed against the first end face 310 of the mounting bracket 300, so that the locking member 400 is firmly pressed against the mounting bracket 300 and the stud body 420 is screwed to the bottom of the receiving groove 1110, so that the position of the locking member 400 is firmly fixed in the corresponding position, and the nut body of the locking member 400 is firmly pressed against the first end face 310 of the mounting bracket 300.

[0044] like Figure 1 As shown, the present disclosure further provides a battery pack, including a plurality of battery cells and a waterproof battery box 10 according to any of the above embodiments; the plurality of battery cells are arranged on a mounting bracket 300. It can be understood that by arranging a plurality of battery cells on the mounting bracket 300, the plurality of battery cells can be firmly arranged in the waterproof battery box 10, and by making the cover 200 cover the notch of the receiving groove 1110, and arranging the waterproof adhesive layer 500 between the periphery of the cover 200 and the notch of the receiving groove 1110, the notch of the receiving groove 1110 can be sealed, thereby preventing the battery cells from contacting with external moisture, so that the battery pack can have a better service life.

[0045] Compared with the prior art, the present invention has at least the following advantages:

[0046] 1) The mounting bracket 300 is arranged in the receiving groove 1110, and the locking member 400 penetrates the mounting bracket 300 and is screwed to the bottom of the receiving groove 1110, so that the mounting bracket 300 can be fixed in the receiving groove 1110. At the same time, by making the cover body 200 cover the notch of the receiving groove 1110, and arranging the waterproof adhesive layer 500 between the periphery of the cover body 200 and the notch of the receiving groove 1110, the notch of the receiving groove 1110 can be sealed, which can not only improve the waterproof performance of the waterproof battery box 10, but also prevent the locking member 400 from contacting with the outside air and moisture.

[0047] 2) Compared with the waterproof battery box 10 of the prior art, the above waterproof battery box 10, the locking member 400 is located in the receiving groove 1110, and there is no need to open a threaded hole on the cover 200, thereby preventing the external moisture from entering the receiving groove 1110 through the threaded hole. At the same time, the locking member 400 is isolated from the external air and moisture by the cover 200 covering the notch of the receiving groove 1110, thereby reducing the rusting of the locking member 400 when exposed to the external air and moisture, and finally making the appearance of the waterproof battery box 10 more beautiful.

[0048] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A waterproof battery box, comprising a shell structure and a cover body; a receiving groove is provided in the shell structure, and the cover body is covered on the notch of the receiving groove; It is characterized in that The waterproof battery box also includes a mounting bracket and a locking member; A waterproof rubber layer is provided between the periphery of the cover body and the notch of the receiving groove; the mounting bracket is arranged in the receiving groove, and the cover body is clamped on the first end face of the mounting bracket; the locking member passes through the first end face of the mounting bracket and is screwed to the bottom of the receiving groove.

2. The waterproof battery box according to claim 1, characterized in that: A first glue dispensing groove is opened on the periphery of the cover body; the notch of the accommodating groove protrudes into the first glue dispensing groove and forms a first water retaining boss; the waterproof glue layer is arranged between the groove wall of the first glue dispensing groove and the first water retaining boss.

3. The waterproof battery box according to claim 1, characterized in that: The cover body is provided with a plurality of hanging ears, which are arranged at intervals along the periphery of the cover body; a plurality of hooks are arranged on the periphery of the first end surface of the mounting bracket; the hooks are arranged corresponding to the hanging ears one by one, and are clamped in the corresponding clamping holes of the hanging ears.

4. The waterproof battery box according to claim 3, characterized in that: The hook is an L-shaped hook, and the hole is a rectangular hole.

5. The waterproof battery box according to claim 1, characterized in that: There are multiple locking members, and the multiple locking members are correspondingly arranged at each corner of the mounting bracket.

6. The waterproof battery box according to claim 1, characterized in that: A through hole is provided on the first end surface of the mounting bracket, the through hole is opposite to the bottom of the receiving groove, and the locking member passes through the through hole and is screwed to the bottom of the receiving groove.

7. The waterproof battery box according to claim 6, characterized in that: The shell structure includes a middle tube and a bottom cover; the bottom cover sealing cover is arranged at the bottom end of the middle tube and forms the receiving groove with the inner cavity of the middle tube; the notch of the receiving groove is opened at the top end of the middle tube; a screw hole is opened on the bottom cover, and the mounting bracket is arranged in the inner cavity of the middle tube; the screw hole is opposite to the through hole and is screwed to the locking member.

8. The waterproof battery box according to claim 7, characterized in that: A second glue dispensing groove is provided at the bottom end of the middle tube; the peripheral edge of the bottom cover is convexly provided on the second water retaining boss, the second water retaining boss is accommodated in the second glue dispensing groove, and a waterproof adhesive layer is provided between the second water retaining boss and the groove wall of the second glue dispensing groove.

9. The waterproof battery box according to claim 6, characterized in that: The locking member is a lock cap body and a stud body; the stud body is passed through the through hole and screwed to the bottom of the receiving groove; the lock cap body is arranged at one end of the stud body close to the cover body and pressed against the first end surface of the mounting bracket.

10. A battery pack, characterized in that: It comprises a plurality of battery cells and the waterproof battery box according to any one of claims 1 to 9; the plurality of battery cells are arranged on the mounting bracket.

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