Battery box

Abstract

The utility model relates to battery packaging box technical field, concretely relates to a battery box, including bottom box, bottom box has the open mouth, the open mouth upper cover is equipped with the upper cover, the first gap is set up in the side of upper cover to bottom box, the second gap is set up in the side of bottom box to upper cover corresponding first gap, first gap and second gap jointly form the mounting gap, the elastic plug of matching mounting gap shape is connected in the mounting gap, and the wire hole that communicates outside and bottom box inside is set up on the elastic plug, namely the mounting gap is formed in the connecting place of upper cover and bottom box, and not the mounting gap of prior art is formed separately in bottom box or upper cover, thereby can avoid the phenomenon that the mounting gap is separately formed in some shell and causes the phenomenon that the shell cracks under the condition of larger stress, and simultaneously make the mounting gap be composed of the second gap set up on bottom box and the first gap set up on upper cover and can improve the structural stability of the application.

Description

Technical Field

[0001] This utility model relates to the field of battery packaging box technology, specifically to a battery box. Background Technology

[0002] Currently, most battery box wiring connections use one silicone ring per wire. However, because the silicone rings are too small and there are two of them, it is difficult to position and assemble them properly. In addition, they offer almost no waterproofing. There is also a method of applying glue to the wiring connection, but manual operation leads to poor consistency in glue application during mass production, and there is a chance that the glue will not be applied properly, resulting in poor aesthetics. Utility Model Content

[0003] To address the issue of poor waterproofing at the wiring points of current battery boxes, this utility model provides a battery box.

[0004] The technical solution of this utility model is as follows:

[0005] On one hand, this utility model provides a battery box, characterized in that: it includes a bottom box with an opening; a top cover fixedly disposed on the opening; wherein, the top cover has a first notch on the side facing the bottom box, and the bottom box has a second notch on the side facing the top cover corresponding to the first notch; the first notch and the second notch together form an installation notch; an elastic plug matching the shape of the installation notch is connected inside the installation notch, and the elastic plug has a wire passage hole communicating with the outside and the inside of the bottom box.

[0006] Furthermore, an annular groove is provided on the outer periphery of the elastic plug, the annular groove matches the mounting notch and the two engage; the outer end of the elastic plug has a resting part that is in close contact with the outer wall of the bottom box and the outer wall of the top cover.

[0007] Furthermore, a first locking block extends integrally from the outer side of the first notch toward the abutment; a second locking block extends integrally from the outer side of the second notch toward the abutment; the first locking block and the second locking block at least abut against the outer wall of the abutment.

[0008] Furthermore, the first card block is provided with a first card slot; the second card block is provided with a second card slot; the first card slot and the second card slot form an annular groove to at least cover the outer periphery of the resting part.

[0009] Furthermore, the end of the elastic plug away from the abutment has a conical head; the conical head, the annular groove, and the abutment are arranged in sequence.

[0010] Furthermore, the first notch, the second notch, and the elastic plug are connected by ultrasonic waves.

[0011] Furthermore, a battery bracket extending longitudinally to the opening is installed inside the bottom box, and a pad is provided on one side of the battery bracket facing the upper inner wall of the bottom box.

[0012] Furthermore, the battery holder is provided with pads on both sides of the side walls that are symmetrically arranged along the length direction. The pads extend along the length direction of the bottom box and abut against the corresponding inner wall of the bottom box.

[0013] Furthermore, the battery holder has multiple metal connecting pieces spaced apart on its two side walls symmetrically arranged along its length to connect multiple batteries, and the padding part includes multiple annular protrusions spaced apart along the length of the bottom box and offset from the metal connecting pieces.

[0014] Furthermore, a BMS board is provided on the side of the battery bracket facing the top cover and is connected to the metal connecting piece; the wire through holes are provided as at least two and face between the BMS board and the top cover.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] The battery box of this utility model has an open opening for easy insertion of batteries into the bottom box; the top cover can cover and protect the batteries inserted into the bottom box; a first notch is opened on the side of the top cover facing the bottom box, and a second notch is opened on the side of the bottom box facing the top cover corresponding to the first notch. The first notch and the second notch together form an installation notch, and an elastic plug matching the shape of the installation notch is connected inside the installation notch; that is, the installation notch is formed at the connection between the top cover and the bottom box, rather than forming the installation notch separately on the bottom box or the top cover as in the prior art. This avoids the phenomenon that the installation notch formed separately on a certain shell will cause large stress and cracking of the shell. At the same time, the installation notch is composed of the second notch on the bottom box and the first notch on the top cover, which can improve the structural stability of this application. The setting of the elastic plug can improve the tight fit and sealing performance between the installation notch and the elastic plug, reduce the cracking phenomenon that may occur when the two are connected and matched, and at the same time, it can provide good sealing performance when the wire passes through the wire hole. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the main view structure of this application;

[0022] Figure 3 yes Figure 2 Sectional view along line AA;

[0023] Figure 4 yes Figure 3 Enlarged view of point B;

[0024] Figure 5 This is a schematic diagram of the first exploded structure according to an embodiment of this application;

[0025] Figure 6 yes Figure 5 Enlarged view of point C;

[0026] Figure 7 This is a schematic diagram of the second exploded structure according to an embodiment of this application.

[0027] In the picture,

[0028] 100. Base box; 110. Opening; 120. Second notch; 130. Second locking block; 131. Second locking slot; 200. Top cover; 210. First notch; 220. First locking block; 221. First locking slot; 300. Mounting notch;

[0029] 400, Elastic plug; 410, Cable hole; 420, Annular groove; 430, Support part; 440, Conical head; 500, Battery bracket; 510, Pad part; 511, Annular protrusion; 520, Metal connecting piece; 530, BMS board. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0032] For ease of description, spatial relative terms may be used in this text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in this text will be interpreted accordingly.

[0033] This application discloses a battery box, including a bottom box 100, the bottom box 100 having an opening 110; the opening 110 is covered by a top cover 200; the top cover 200 has a first notch 210 on the side facing the bottom box 100, and the bottom box 100 has a second notch 120 corresponding to the first notch 210 on the side facing the top cover 200; the first notch 210 and the second notch 120 together form a mounting notch 300; an elastic plug 400 matching the shape of the mounting notch 300 is connected inside the mounting notch 300, and the elastic plug 400 has a wire hole 410 communicating with the outside and the inside of the bottom box 100.

[0034] In this embodiment, the opening 110 facilitates the insertion of the battery into the bottom box 100; the top cover 200 can cover and protect the battery inserted into the bottom box 100; the top cover 200 has a first notch 210 on the side facing the bottom box 100, and the bottom box 100 has a second notch 120 corresponding to the first notch 210 on the side facing the top cover 200. The first notch 210 and the second notch 120 together form a mounting notch 300, and an elastic plug 400 matching the shape of the mounting notch 300 is connected inside the mounting notch 300; that is, the mounting notch 300 is formed at the connection between the top cover 200 and the bottom box 100, rather than the existing technology of... The mounting notch 300 is separately formed on the bottom box 100 or the top cover 200, which can avoid the phenomenon of large stress causing the shell to crack due to the mounting notch 300 being separately formed on a certain shell. At the same time, the mounting notch 300 is composed of the second notch 120 formed on the bottom box 100 and the first notch 210 formed on the top cover, which can improve the structural stability of this application. The setting of the elastic plug 400 can improve the tight fit and sealing performance between the mounting notch 300 and the elastic plug 400, reduce the cracking phenomenon that may occur when the two are connected and matched, and at the same time, it can provide good sealing performance when the wire passes through the wire hole 410.

[0035] Optionally, the elastic plug 400 can be made of materials such as silicone or rubber.

[0036] In an optional or preferred embodiment, the elastic plug 400 has an annular groove 420 on its outer periphery, which matches and engages with the mounting notch 300; the outer end of the elastic plug 400 has a resting part 430 that is in close contact with the outer wall of the bottom box 100 and the outer wall of the top cover 200.

[0037] In this embodiment, the annular groove 420 on the elastic plug 400 matches the mounting notch 300 on the housing (the mating structure of the bottom box and the top cover) and the two are engaged. The engagement can be a fixed engagement, which makes the connection between the housing and the elastic plug 400 more stable. The abutment part 430 on the elastic plug 400 is in close contact with the side wall of the housing, thereby achieving a better waterproof effect.

[0038] In an optional or preferred embodiment, a first locking block 220 extends integrally from the outer side of the first notch 210 toward the abutment portion 430; a second locking block 130 extends integrally from the outer side of the second notch 120 toward the abutment portion 430; the first locking block 220 and the second locking block 130 at least abut against the outer wall of the abutment portion 430; by the integrally connected first locking block 220 and second locking block 130 abutting against the outer wall of the abutment portion 430, the elastic plug 300 is fixed, which makes the connection between the elastic plug 400 and the mounting notch 300 more stable; at the same time, the extension of the first locking block 220 and the second locking block 130 even makes the wire hole 410 channel longer, so that there can be a larger contact sealing area with the wire.

[0039] In an optional or preferred embodiment, a first slot 221 is provided on the first card block 220; a second slot 131 is provided on the second card block 130; the first slot 221 and the second slot 131 form an annular groove to wrap around the support part 430 and expose the wire hole 410; by forming an annular groove with the first slot 221 and the second slot 131 to at least wrap around the outer periphery of the support part 430, another waterproof structure is formed, further improving the waterproof effect of this application. At the same time, since the elastic plug 400 is wrapped and protected, the damage and aging of the elastic plug 400 can be effectively prevented.

[0040] In an optional or preferred embodiment, the end of the elastic plug 400 away from the abutment portion 430 has a conical head 440; the conical head 440, the annular groove 420, and the abutment portion 430 are arranged in sequence.

[0041] In this embodiment, the elastic plug 400 can easily pass through the mounting notch 300 and enter the bottom box 100 through the conical head 440, so that the annular groove 420 matches and engages with the mounting notch 300.

[0042] In an optional or preferred embodiment, the first notch 210, the second notch 120, and the elastic plug 400 are connected by ultrasonic waves, thereby improving the connection stability among the three and making them less prone to loosening, thus ensuring good performance.

[0043] Optionally, the base box 100 and the top cover 200 are bolted together so that the mounting notch 300 presses against the elastic plug 400.

[0044] In an optional or preferred embodiment, a battery bracket 500 extending longitudinally to an opening 110 is installed inside the bottom box 100. The battery bracket 500 has a pad 510 protruding from the side facing the upper inner wall of the bottom box 100. In order to facilitate the demolding of the bottom box 100, a demolding angle is usually designed for it, which causes the opening size at the opening 110 of the bottom box 100 to be larger than the cross-sectional size of the inner bottom of the bottom box 100, thereby causing the bottom box 100 to bend inward during the cooling process. Therefore, by utilizing the longitudinal extension characteristic of the battery bracket 500 itself, and by providing a pad 510 at its upper end corresponding to the inner wall of the bottom box 100, the tendency of the bottom box 100 to bend inward is supported and limited, so as to correct the side wall of the bottom box 100.

[0045] In an optional or preferred embodiment, the battery holder 500 is provided with pads 510 on both sides symmetrically arranged along the length direction. The pads 510 extend along the length direction of the bottom box 100 and abut against the corresponding inner wall of the bottom box 100. Since the bottom box 100 has a relatively long length, the pads 510 extend along the length direction of the bottom box 100 and abut against the corresponding inner wall of the bottom box 100 to achieve a better correction effect.

[0046] In an optional or preferred embodiment, the battery holder 500 has multiple metal connecting pieces 520 spaced apart on its two side walls symmetrically arranged along its length to connect multiple batteries. The padding portion 510 includes multiple annular protrusions 511 spaced apart along the length of the bottom box 100 and offset from the metal connecting pieces 520. Since the batteries are connected by the metal connecting pieces 520 protruding from the surface of the battery holder 500, the padding portion 510 is configured as multiple annular protrusions 511 spaced apart along the length of the bottom box 100 so that the annular protrusions 511 are offset from the metal connecting pieces 520 to support and correct the inner wall of the bottom box 100. Optionally, the annular protrusions 511 protrude from the surface of the metal connecting pieces 520.

[0047] In an optional or preferred embodiment, a BMS board 530 is provided on the side of the battery holder 500 facing the top cover 200 and connected to the metal connecting piece 520; at least two wire holes 410 are provided and face between the BMS board 530 and the top cover 200; the connection and cooperation between the BMS board 530, the metal connecting piece 520, and the battery is prior art and not the focus of this case, so it will not be described in detail; at least two wire holes 410 are provided so that the positive wire and the negative wire can pass through respectively, and the two wires can have a good sealing connection effect by passing through the wire holes 410 respectively, and the wires are located between the BMS board 530 and the top cover 200 after passing through the wire holes 410, which facilitates their connection and use.

[0048] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0049] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0050] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery box, characterized in that: Includes a base box (100) with an opening (110); a top cover (200) fixedly mounted on the opening (110); wherein, the top cover (200) has a first notch (210) on the side facing the base box (100), and the base box (100) has a second notch (120) on the side facing the top cover (200) corresponding to the first notch (210); the first notch (210) and the second notch (120) together form an installation notch (300); an elastic plug (400) matching the shape of the installation notch (300) is connected inside the installation notch (300), and the elastic plug (400) has a wire hole (410) communicating with the outside and the inside of the base box (100).

2. The battery box according to claim 1, characterized in that: The elastic plug (400) has an annular groove (420) on its outer periphery, which matches the mounting notch (300) and engages with it; the outer end of the elastic plug (400) has a support portion (430) that is in close contact with the outer wall of the bottom box (100) and the outer wall of the top cover (200).

3. The battery box according to claim 2, characterized in that: A first locking block (220) extends integrally from the outer side of the first notch (210) toward the abutment (430); a second locking block (130) extends integrally from the outer side of the second notch (120) toward the abutment (430); the first locking block (220) and the second locking block (130) at least abut against the outer wall of the abutment (430).

4. The battery box according to claim 3, characterized in that: The first card block (220) is provided with a first card slot (221); the second card block (130) is provided with a second card slot (131); the first card slot (221) and the second card slot (131) form an annular groove to at least cover the outer periphery of the resting part (430).

5. The battery box according to claim 2, characterized in that: The elastic plug (400) has a tapered head (440) at one end away from the abutment (430); the tapered head (440), the annular groove (420) and the abutment (430) are arranged in sequence.

6. The battery box according to claim 1, characterized in that: The first notch (210), the second notch (120), and the elastic plug (400) are connected by ultrasonic waves.

7. The battery box according to any one of claims 1-6, characterized in that: A battery bracket (500) extending longitudinally to the opening (110) is installed inside the bottom box (100), and a pad (510) is provided on the side of the battery bracket (500) facing the upper inner wall of the bottom box (100).

8. The battery box according to claim 7, characterized in that: The battery holder (500) is provided with pads (510) on both sides of the symmetrical arrangement along the length direction. The pads (510) extend along the length direction of the bottom box (100) and abut against the corresponding inner wall of the bottom box (100).

9. The battery box according to claim 7, characterized in that: The battery holder (500) has multiple metal connecting pieces (520) spaced apart on its two side walls symmetrically arranged along the length direction to connect multiple batteries. The pad (510) includes multiple annular protrusions (511) spaced apart along the length direction of the bottom box (100) and is offset from the metal connecting pieces (520).

10. The battery box according to claim 9, characterized in that: The battery holder (500) has a BMS board (530) on the side facing the top cover (200) and is connected to the metal connecting piece (520); the wire hole (410) is set to at least two and faces between the BMS board (530) and the top cover (200).

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