CN219226458U

CN219226458U - Battery box and battery with same

Info

Publication number: CN219226458U
Application number: CN202223603041.9U
Authority: CN
Inventors: 刘志龙; 钟强; 李金荣
Original assignee: Zhejiang Xindong Energy Technology Co ltd
Current assignee: Zhejiang Xindong Energy Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a battery box and a battery with the same, wherein the battery box comprises: a lower box body provided with a containing cavity; the waterproof plug is arranged on the outer side wall of the lower box body, the waterproof plug comprises a shell and a separation plate, the shell is provided with a glue filling cavity and a glue filling opening communicated with the glue filling cavity, the separation plate is arranged in the glue filling cavity and extends along the height direction of the shell, two sides of the separation plate are respectively connected with two opposite inner walls of the shell, the waterproof plug is provided with a threading hole communicated with the containing cavity, and the threading hole penetrates through the shell and the separation plate. Through the technical scheme that this application provided, can solve the position that sealant among the correlation technique contacted with the pencil and fracture easily, lead to sealed inefficacy problem.

Description

Battery box and battery with same

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery box and a battery with the same.

Background

The appearance of the electric bicycle greatly facilitates the life of human beings, and the electric bicycle has the advantages of large endurance mileage, high riding speed and labor saving. Wherein, be provided with the battery as the power supply in the electric bicycle to satisfy electric bicycle's energy demand. And, the battery provides electric power to each component of the electric bicycle through the wire harness.

In the related art, the battery comprises a lower box body and an electric core, and the electric core is connected with each electric unit through a wire harness penetrating out of the lower box body, so that the electric requirements of lighting lamps, display screens and other components are met. In order to achieve the sealing effect of the lower box body, the wire harness penetrating position is sealed by using sealant.

However, the position where the sealant contacts the wire harness is prone to cracking, resulting in seal failure.

Disclosure of Invention

The utility model provides a battery box and a battery with the same, and aims to solve the problem that a sealing adhesive in the related art is easy to crack at a contact position of a wire harness, so that sealing is invalid.

According to an aspect of the present utility model, there is provided a battery box including: a lower box body provided with a containing cavity; the waterproof plug is arranged on the outer side wall of the lower box body, the waterproof plug comprises a shell and a separation plate, the shell is provided with a glue filling cavity and a glue filling opening communicated with the glue filling cavity, the separation plate is arranged in the glue filling cavity and extends along the height direction of the shell, two sides of the separation plate are respectively connected with two opposite inner walls of the shell, the waterproof plug is provided with a threading hole communicated with the containing cavity, and the threading hole penetrates through the shell and the separation plate.

Further, the side wall of the lower box body is provided with an avoidance opening penetrating in the horizontal direction, the avoidance opening penetrates through the upper end face of the side wall of the lower box body, a limiting structure positioned in the avoidance opening is arranged between the lower box body and the waterproof plug, and the waterproof plug is connected with the lower box body through the limiting structure.

Further, the limit structure comprises a limit column and a limit groove, the limit column is arranged in the avoidance opening and protrudes out of the side wall of the avoidance opening, the limit groove is arranged on the outer side wall of the waterproof plug, and the top wall of the limit groove is attached to the top wall of the limit column.

Further, a boss extending transversely is arranged on the outer side wall of the shell, and the limit groove is arranged on the lower surface of the boss and extends vertically.

Further, the mounting seat communicated with the avoidance opening is arranged on the outer side wall of the lower box body, the mounting seat is provided with an outlet penetrating through the mounting seat in the horizontal direction, the avoidance opening and the outlet are arranged on the same axis, the outlet penetrates through the upper surface of the mounting seat, and the waterproof plug is arranged in the mounting seat.

Further, the mount pad includes first curb plate, the second curb plate, third curb plate and bottom plate, first curb plate, second curb plate and third curb plate connect gradually and all vertically extend along, first curb plate and third curb plate all are connected with the lateral wall of lower box, the outward flange of bottom plate is connected with the lateral wall of lower box, the diapire of first curb plate, the diapire of second curb plate and the diapire of third curb plate respectively, the inside wall of first curb plate and the inside wall of third curb plate all with dodge open-ended cell wall looks parallel and level, the outlet setting is on the second curb plate.

Further, the upper end face of the side wall of the lower box body is flush with the upper end face of the side wall of the mounting seat, and the battery box further comprises an upper cover which is covered on the lower box body and the mounting seat.

Further, the lateral wall up end of lower box is provided with first sealed groove of gluing, is provided with the second on the waterproof plug and glues the groove, and first sealed groove and second are glued the groove and are enclosed into annular structure, are provided with the sealing rib on the upper cover, and the sealing rib inserts and locates first sealed groove and second sealed groove of gluing.

According to another aspect of the present utility model, there is provided a battery including: a battery box; the battery cell is arranged in the battery box; the pencil, the one end and the electricity core electricity of pencil are connected, and the holding chamber of battery box is worn to locate and is worn out from the through wires hole of battery box to the other end of pencil, and the battery box is the battery box of above-mentioned providing.

Further, the battery also comprises a protective cover connected with the battery core, and the protective cover is arranged at the joint of the battery core and the wire harness; the battery also comprises a rubber pad which is arranged in the protective cover and covers the joint of the battery core and the wire harness.

By applying the technical scheme of the utility model, the battery box comprises a lower box body and a waterproof plug, the battery core is placed in the accommodating cavity of the lower box body, one end of the wire harness is connected with the battery core, and the other end of the wire harness can be connected with each power utilization unit by penetrating out through the threading hole of the waterproof plug. Owing to be provided with the division board in the casing of waterproof stopper, the through wires hole transversely runs through casing and division board, and after the wire harness was worn to locate the through wires hole, glue filling opening through the casing was to glue filling intracavity injection sealant, and then both sides at the division board homoenergetic form the location to the pencil for the pencil is firm more difficult for rocking in the casing, thereby difficult fracture of sealant in the casing has promoted sealed and location effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows an exploded view of a battery provided according to an embodiment of the present utility model;

FIG. 2 shows a partial enlarged view at A in FIG. 1;

fig. 3 shows a schematic structural view of the waterproof plug of fig. 1;

fig. 4 shows a schematic structural view of a battery provided according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a lower box body; 11. a receiving chamber; 12. an avoidance opening; 13. a mounting base; 131. a wire outlet; 132. a first side plate; 133. a second side plate; 134. a third side plate; 14. a first sealant groove;

20. a waterproof plug; 21. a housing; 22. a partition plate; 23. a threading hole; 24. a boss; 25. a second sealant groove;

30. a limit structure; 31. a limit column; 32. a limit groove;

40. an upper cover;

50. a battery cell;

60. a wire harness;

70. a protective cover;

80. rubber cushion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a battery box including a lower case 10 and a waterproof plug 20, the lower case 10 having a receiving chamber 11; the waterproof plug 20 is arranged on the outer side wall of the lower box body 10, the waterproof plug 20 comprises a shell 21 and a partition plate 22, the shell 21 is provided with a glue filling cavity and a glue filling opening communicated with the glue filling cavity, the partition plate 22 is arranged in the glue filling cavity and extends along the height direction of the shell 21, two sides of the partition plate 22 are respectively connected with two opposite inner walls of the shell 21, the waterproof plug 20 is provided with a threading hole 23 communicated with the accommodating cavity 11, and the threading hole 23 penetrates through the shell 21 and the partition plate 22.

By applying the technical scheme of the utility model, the battery box comprises a lower box body 10 and a waterproof plug 20, a battery core is placed in a containing cavity 11 of the lower box body 10, one end of a wire harness 60 is connected with the battery core, and the other end of the wire harness 60 can be connected with each power utilization unit by penetrating out through a threading hole 23 of the waterproof plug 20. Owing to be provided with division board 22 in the casing 21 of waterproof stopper 20, through wires hole 23 transversely runs through casing 21 and division board 22, after wire harness 60 wears to locate through wires hole 23, glue filling opening through casing 21 is to the injecting glue intracavity injecting seal glue, and then both sides at division board 22 homoenergetic form the location to wire harness 60 for wire harness 60 is more firm difficult for rocking in casing 21, thereby the difficult fracture of seal glue in casing 21 has promoted sealed and location effect.

The waterproof plug 20 may be fixed to the lower case 10 in a plurality of ways, for example, by bolting or clamping.

In the related art, since the sealant only plays a role of sealing, the wire harness 60 is easily shaken and thus easily cracked.

As shown in fig. 1 and 2, the side wall of the lower case 10 is provided with an avoidance opening 12 penetrating in the horizontal direction, the avoidance opening 12 penetrates through the upper end surface of the side wall of the lower case 10, a limiting structure 30 positioned in the avoidance opening 12 is arranged between the lower case 10 and the waterproof plug 20, and the waterproof plug 20 is connected with the lower case 10 through the limiting structure 30. By adopting the avoidance opening 12, the wire harness 60 can be arranged behind the shell 21 in a penetrating way, and the waterproof plug 20 is arranged on the lower box body 10, so that the installation is convenient.

Specifically, the wire harness 60 is threaded through the threading hole 23, and the waterproof plug 20 is placed in the lower case 10, so that the wire harness 60 enters the accommodating cavity 11 through the escape opening 12. Compared with the way of arranging the holes on the lower box body 10 and penetrating the wire harness 60 into the holes, the box body has the advantage of convenience in installation.

As shown in fig. 2 and 3, the limiting structure 30 includes a limiting post 31 and a limiting groove 32, the limiting post 31 is disposed in the avoidance opening 12 and protrudes out of the side wall of the avoidance opening 12, the limiting groove 32 is disposed on the outer side wall of the waterproof plug 20, and the top wall of the limiting groove 32 is attached to the top wall of the limiting post 31. By adopting the structure, the limiting mode of inserting the limiting column 31 into the limiting groove 32 is utilized, and the limiting structure has the advantages of simple structure and convenience in installation.

Of course, the limiting structure may be provided on the outer sidewall of the lower case 10 as long as the fixing and limiting of the waterproof plug 20 can be achieved.

As shown in fig. 3, the outer side wall of the housing 21 is provided with a boss 24 extending in the lateral direction, and a limit groove 32 is provided on the lower surface of the boss 24 and extends in the vertical direction. The mode that the boss 24 is used for arranging the limit groove 32 has the advantages of simple structure and convenience in processing.

In this embodiment, the waterproof plug 20 has a rectangular parallelepiped structure, and the boss 24 extends along the length direction of the waterproof plug.

As shown in fig. 1 and 2, the outer side wall of the lower case 10 is provided with a mounting seat 13 communicated with the avoidance opening 12, the mounting seat 13 is provided with a wire outlet 131 penetrating the mounting seat along the horizontal direction, the avoidance opening 12 and the wire outlet 131 are on the same axis, the wire outlet 131 penetrates the upper surface of the mounting seat 13, and the waterproof plug 20 is arranged in the mounting seat 13. With the mounting base 13, the waterproof plug 20 can be protected and carried to prevent the waterproof plug 20 from being detached from the lower case 10 or damaged so that the seal fails.

In the present embodiment, since the wire outlet 131 penetrates the upper surface of the mount 13 and the mount 13 has an upper opening, the wire harness 60 can be directly put into the mount 13 through the upper opening after penetrating the waterproof plug 20.

As shown in fig. 2, the mounting base 13 includes a first side plate 132, a second side plate 133, a third side plate 134 and a bottom plate, the first side plate 132, the second side plate 133 and the third side plate 134 are sequentially connected and all extend vertically, the first side plate 132 and the third side plate 134 are all connected with the outer side wall of the lower box 10, the outer edge of the bottom plate is respectively connected with the outer side wall of the lower box 10, the bottom wall of the first side plate 132, the bottom wall of the second side plate 133 and the bottom wall of the third side plate 134, the inner side wall of the first side plate 132 and the inner side wall of the third side plate 134 are all flush with the groove wall of the avoidance opening 12, and the wire outlet 131 is arranged on the second side plate 133. The mounting seat 13 adopting the structure has the advantages of simple structure and convenient processing.

The lower end of the glue filling cavity is also provided with an opening structure, so that the waterproof plug 20 can be in sealing connection with the mounting seat 13.

As shown in fig. 1 and 4, the upper end surface of the side wall of the lower case 10 is flush with the upper end surface of the side wall of the mounting seat 13, and the battery case further includes an upper cover 40 covering the lower case 10 and the mounting seat 13. The lower case 10 and the waterproof plug 20 can be capped by the upper cover 40, so that the battery cell can be protected and sealed by the upper cover 40, and the waterproof plug 20 can be sealed by the upper cover 40.

Specifically, the upper cover 40 includes a battery cell cover and a waterproof plug cover that are connected, the battery cell cover is disposed on the lower case 10, and the waterproof plug cover is disposed on the mounting base 13.

As shown in fig. 2 and 3, the upper end surface of the side wall of the lower case 10 is provided with a first sealant groove 14, the waterproof plug 20 is provided with a second sealant groove 25, the first sealant groove 14 and the second sealant groove 25 enclose an annular structure, the upper cover 40 is provided with sealing ribs, and the sealing ribs are inserted into the first sealant groove 14 and the second sealant groove 25. By adopting the sealing structure, the accommodating cavity 11 can form complete sealing, and water or impurities are prevented from entering.

Specifically, the sealant is injected into the first and

second sealant grooves

14 and 25, and when the seal bead is inserted into the first and

second sealant grooves

14 and 25, a good seal can be formed.

In the present embodiment, the second sealant groove 25 is provided on the upper surface of the boss 24.

A further embodiment of the present utility model provides a battery, which includes a battery case, a battery cell 50, and a wire harness 60, wherein the battery cell 50 is disposed in the battery case; one end of the wire harness 60 is electrically connected with the battery cell 50, and the other end of the wire harness 60 penetrates through the accommodating cavity 11 of the battery box and penetrates out of the threading hole 23 of the battery box, and the battery box is the battery box provided above. By adopting the battery, after the wire harness 60 passes through the threading hole 23, sealant is injected into the sealant injecting cavity through the sealant injecting opening of the shell 21, and then the wire harness 60 can be positioned at both sides of the partition plate 22, so that the wire harness 60 is firmer and less prone to shaking in the shell 21, the sealant is less prone to cracking in the shell 21, and sealing and positioning effects are improved.

As shown in fig. 1 and 4, the battery further includes a protective cover 70 connected with the battery cell 50 and a rubber pad 80, the protective cover 70 is arranged at the connection part of the battery cell 50 and the wire harness 60, and the rubber pad 80 is arranged in the protective cover 70 and is arranged at the connection part of the battery cell 50 and the wire harness 60. The rubber pad 80 is adopted to fill the gap between the protective cover 70 and the battery cell 50, so that the shaking space of the wiring harness 60 can be reduced, shaking of the wiring harness 60 is reduced, and the fixing effect of the wiring harness is improved.

Specifically, after the protective cover 70 is covered on the rubber pad 80, the gap between the protective cover 70 and the rubber pad 80 is filled with the sealant, so that the sealing effect of the welding part of the wire harness 60 and the battery cell 50 can be achieved.

In this embodiment, the battery cell 50 includes a battery module and a battery protection plate disposed on the battery module, and the wire harness 60 is welded to the battery protection plate.

Specifically, after the wire harness 60 is threaded through the threading hole 23, the wire harness 60 is welded to the battery protection plate, the rubber pad 80 and the protection cover 70 are covered at the welded portion, and the sealant is injected to fill the gap between the protection cover 70 and the rubber pad 80. And then the battery core 50 and the wire harness 60 are put into the accommodating cavity 11 together, the waterproof plug 20 is put into the mounting seat 13, the waterproof plug 20 is connected with the lower box body 10 through the limiting structure 30, and sealant is injected into the glue filling cavity. The upper cover 40 is finally used to cover and seal the lower case 10 and the mounting base 13.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A battery box, characterized in that the battery box comprises:

a lower case (10) having a housing chamber (11);

waterproof stopper (20) are arranged on the lateral wall of lower box (10), waterproof stopper (20) include casing (21) and division board (22), casing (21) have the encapsulating chamber and with the encapsulating opening that the encapsulating chamber is linked together, division board (22) set up in the encapsulating intracavity and follow the direction of height of casing (21) extends, the both sides of division board (22) respectively with two inner wall connections that casing (21) are relative, waterproof stopper (20) have with threading hole (23) that hold chamber (11) intercommunication, threading hole (23) run through casing (21) and division board (22).

2. The battery box according to claim 1, wherein the side wall of the lower box body (10) is provided with an avoidance opening (12) penetrating in the horizontal direction, the avoidance opening (12) penetrates through the upper end face of the side wall of the lower box body (10), a limiting structure (30) located in the avoidance opening (12) is arranged between the lower box body (10) and the waterproof plug (20), and the waterproof plug (20) is connected with the lower box body (10) through the limiting structure (30).

3. The battery box according to claim 2, wherein the limiting structure (30) comprises a limiting column (31) and a limiting groove (32), the limiting column (31) is arranged in the avoidance opening (12) and protrudes out of the side wall of the avoidance opening (12), the limiting groove (32) is arranged on the outer side wall of the waterproof plug (20), and the top wall of the limiting groove (32) is attached to the top wall of the limiting column (31).

4. A battery box according to claim 3, characterized in that a boss (24) extending in the lateral direction is provided on the outer side wall of the housing (21), and the limit groove (32) is provided on the lower surface of the boss (24) and extends in the vertical direction.

5. The battery box according to claim 2, wherein an installation seat (13) communicated with the avoidance opening (12) is arranged on the outer side wall of the lower box body (10), an outlet (131) penetrating through the installation seat (13) in the horizontal direction is arranged on the installation seat (13), the avoidance opening (12) and the outlet (131) are on the same axis, the outlet (131) penetrates through the upper surface of the installation seat (13), and the waterproof plug (20) is arranged in the installation seat (13).

6. The battery box according to claim 5, wherein the mounting base (13) comprises a first side plate (132), a second side plate (133), a third side plate (134) and a bottom plate, the first side plate (132), the second side plate (133) and the third side plate (134) are sequentially connected and all extend vertically, the first side plate (132) and the third side plate (134) are all connected with the outer side wall of the lower box body (10), the outer edge of the bottom plate is respectively connected with the outer side wall of the lower box body (10), the bottom wall of the first side plate (132), the bottom wall of the second side plate (133) and the bottom wall of the third side plate (134), the inner side wall of the first side plate (132) and the inner side wall of the third side plate (134) are all flush with the groove wall of the avoidance opening (12), and the wire outlet (131) is arranged on the second side plate (133).

7. The battery box according to claim 5, wherein the upper end surface of the side wall of the lower box body (10) is flush with the upper end surface of the side wall of the mounting seat (13), and the battery box further comprises an upper cover (40) covering the lower box body (10) and the mounting seat (13).

8. The battery box according to claim 7, wherein a first sealing glue groove (14) is formed in the upper end face of the side wall of the lower box body (10), a second sealing glue groove (25) is formed in the waterproof plug (20), the first sealing glue groove (14) and the second sealing glue groove (25) enclose an annular structure, sealing ribs are arranged on the upper cover (40), and the sealing ribs are inserted into the first sealing glue groove (14) and the second sealing glue groove (25).

9. A battery, the battery comprising:

a battery box;

a battery cell (50) disposed within the battery box;

a wire harness (60), one end of the wire harness (60) is electrically connected with the electric core (50), the other end of the wire harness (60) penetrates through the accommodating cavity (11) of the battery box and penetrates out of the threading hole (23) of the battery box, and the battery box is the battery box according to any one of claims 1 to 8.

10. The battery of claim 9, wherein the battery is configured to provide the battery with a plurality of cells,

the battery also comprises a protective cover (70) connected with the battery cell (50), wherein the protective cover (70) is arranged at the joint of the battery cell (50) and the wire harness (60) in a covering way;

the battery also comprises a rubber pad (80), wherein the rubber pad (80) is arranged in the protective cover (70) and covers the joint of the battery cell (50) and the wire harness (60).