CN214957207U

CN214957207U - Battery box extension structure

Info

Publication number: CN214957207U
Application number: CN202121356638.0U
Authority: CN
Inventors: 林培江; 庄胜加
Original assignee: Zhuhai Zhongli New Energy Technology Co ltd
Current assignee: Zhuhai Zhongli New Energy Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-30
Anticipated expiration: 2031-06-17

Abstract

The application belongs to the technical field of automobile power batteries, and provides a battery box expansion structure which comprises a battery box with a built-in storage battery and an expansion box for accommodating expansion equipment, wherein the expansion box is arranged on the battery box and comprises a top plate and a coaming which are connected, and the coaming is arranged around the periphery of the top plate to form a disk body with an opening at the bottom for accommodating the expansion equipment; the outer wall of the battery box is provided with a wire passing hole positioned in the projection range of the top plate of the expansion box, and a cable of the expansion equipment passes through the wire passing hole and is connected with a storage battery in the battery box; one end and the roof of bounding wall are connected, and the other end of bounding wall is the link with the battery box outer wall connection, and the link of bounding wall and the coating of the joint gap of battery box outer wall have waterproof glue. The utility model provides a battery box structure is retrencied, and is with low costs, and extension box has good wholeness with the battery box, and the coating of the junction of extension box and battery box outer wall has the waterproof glue, can effectively keep the original waterproof performance of battery box.

Description

Battery box extension structure

Technical Field

The application belongs to the technical field of automobile power batteries, and particularly relates to a battery box extension structure.

Background

According to the specification and size of a power storage battery product for an electric vehicle (GB/T34013-2017) implemented in 2018, 2, 1, the specification and size of a single body, a module and a standard box of the power storage battery for the electric vehicle (hereinafter referred to as the storage battery) are standardized, so that the internal structure of the storage battery designed and produced later is more compact. When an additional battery balance management system or other equipment needs to be additionally arranged at the later stage, the internal space of the storage battery is insufficient.

When equipment needs to be installed under the condition that the internal space of the storage battery is insufficient, in the related technology, an extra equipment box is usually added outside the battery box, then a battery balance management system or other equipment is installed in the equipment box, and the equipment box is connected with related parts inside the battery box through a communication line and the like. The disadvantages of this technique are: the additional equipment box is complex in structure and high in cost; the equipment box and the original storage battery in the battery box are in flexible connection through a cable, so that the integrity is poor; the storage battery generally has waterproof performance requirements, and the waterproof performance is difficult to guarantee after the equipment box is additionally arranged.

Disclosure of Invention

An object of the embodiment of this application is to provide a battery box extension structure to solve the technical problem that waterproof performance is difficult to guarantee behind the additional equipment box that exists among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the battery box expansion structure comprises a battery box with a built-in storage battery and an expansion box for accommodating expansion equipment, wherein the expansion box is arranged on the battery box and comprises a top plate and a surrounding plate which are connected, and the surrounding plate is arranged around the periphery of the top plate to form a tray body with an opening at the bottom for accommodating the expansion equipment; the outer wall of the battery box is provided with a wire passing hole positioned in the top plate projection range of the expansion box, and a cable of the expansion equipment is connected with a storage battery in the battery box through the wire passing hole; one end of the coaming is connected with the top plate, the other end of the coaming is a connecting end connected with the outer wall of the battery box, and waterproof glue is coated in a connecting gap between the connecting end of the coaming and the outer wall of the battery box.

The application provides a battery box's beneficial effect lies in: compared with the prior art, the expansion box is arranged on the surface of the outer wall of the battery box, the wire passing hole which is positioned in the top plate projection range of the expansion box is arranged on the outer wall of the battery box, a cable of battery equalization management equipment or other equipment which needs to be additionally arranged can pass through the wire passing hole to be connected with a storage battery in the battery box, and the expansion box and the battery box have good integrity; the additionally arranged battery balance management equipment or other equipment and the cable are contained in the expansion box, and waterproof glue is coated at the joint of the expansion box and the outer wall of the battery box, so that the original waterproof performance of the battery box can be effectively kept, and the additionally arranged expansion equipment, the cable and a storage battery in the battery box are protected from water; the expansion box has simple structure and low cost.

Optionally, one end of the surrounding plate connected with the outer wall of the battery box extends outwards in the radial direction to form a folded edge, and the folded edge is connected with the outer wall of the battery box through a connecting piece.

Optionally, a first mounting hole is formed in the folded edge, a second mounting hole is formed in the outer wall of the battery box, and the folded edge is connected with the outer wall of the battery box through screws and nuts.

Optionally, the surface of the folded edge is coated with a ring of the waterproof glue.

Optionally, the folded edge is provided with a jack, the outer wall of the battery box is provided with a plug-in buckle, and the folded edge is connected with the outer wall of the battery box through the jack and the plug-in buckle.

Optionally, one end of the enclosing plate connected with the outer wall of the battery box extends outwards in the radial direction to form a folded edge, and the folded edge is bonded with the outer wall of the battery box.

Optionally, one end of the enclosing plate connected with the battery box is provided with a plurality of connecting lugs along the periphery of the enclosing plate, and the connecting lugs are connected with the outer wall of the battery box through connecting pieces.

Optionally, the battery box includes an upper box body and a lower box body which are mutually folded, and the extension box is arranged on the outer wall of the upper box body.

Optionally, the battery box further includes a battery equalization management device disposed in the extension box, and a cable of the battery equalization management device passes through the wire passing hole and is electrically connected to a storage battery in the battery box.

Optionally, a communication port is further arranged on the expansion box, and a cable waterproof connector is arranged on the communication port in a penetrating mode.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a first schematic structural diagram of an extended structure of a battery box according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram ii of an extended structure of a battery box according to an embodiment of the present application;

fig. 3 is a schematic structural diagram three of an expansion structure of a battery box provided in the embodiment of the present application;

fig. 4 is a partially enlarged structural view of the expansion structure of the battery box shown in fig. 3;

fig. 5 is a schematic structural diagram of an expansion box provided in an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. an expansion box; 11. a top plate; 12. enclosing plates; 121. folding edges; 101. a first mounting hole; 102. a communication port;

2. a battery box; 21. an upper box body; 22. a lower box body; 201. a wire passing hole; 202. a second mounting hole; 3. waterproof glue;

4. a screw;

5. a waterproof cable joint;

6. a cable;

7. a communication line;

8. a battery equalization management apparatus.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The battery box extension structure provided by the embodiment of the present application will now be described. Referring to fig. 1, 4 and 5, the battery box expansion structure includes a battery box 2 with a built-in storage battery and an expansion box 1 for accommodating expansion equipment, the expansion box 1 is disposed on the battery box 2, the expansion box 1 is used for accommodating battery equalization management equipment 8 or other equipment to be installed, the expansion box 1 includes a top plate 11 and a surrounding plate 12, the surrounding plate 12 is disposed around the periphery of the top plate 11 to form a tray body with a bottom opening for accommodating the expansion equipment; the outer wall of the battery box 2 is provided with a wire passing hole 201 positioned in the projection range of the top plate 11 of the expansion box 1, and a cable 6 of the expansion equipment passes through the wire passing hole 201 and is connected with a storage battery in the battery box 2; one end of the coaming 12 is connected with the top plate 11, the other end of the coaming 12 is a connecting end connected with the outer wall of the battery box 1, and the connecting gap between the connecting end of the coaming 12 and the outer wall of the battery box 1 is coated with waterproof glue 3.

One end and the roof 11 of bounding wall 12 are connected, and the other end and the 2 outer wall of battery box of bounding wall 12 are connected, and the junction coating of bounding wall 12 and the 2 outer walls of battery box has waterproof glue 3.

Compared with the prior art, the battery box extension structure provided by the application has the advantages that the extension box 1 is arranged on the surface of the outer wall of the battery box 2, the wire passing hole 201 which is located in the projection range of the top plate 11 of the extension box 1 is formed in the outer wall of the battery box 2, a cable 6 of a battery balance management device 8 or other devices which need to be additionally arranged can pass through the wire passing hole 201 to be connected with a storage battery in the battery box 2, and the extension box 1 and the battery box 2 have good integrity; the additionally arranged battery balance management equipment 8 or other equipment and the cable 6 are contained in the expansion box 1, and the waterproof glue 3 is coated at the joint of the expansion box 1 and the outer wall of the battery box 2, so that the original waterproof performance of the battery box 2 can be effectively kept, and the additionally arranged expansion equipment, the cable 6 and a storage battery in the battery box 2 are protected from water; the expansion box 1 has simple structure and low cost.

In another embodiment of the present application, referring to fig. 5, one end of the enclosing plate 12 connected to the battery box 2 extends radially outwards to form a folded edge 121, and the folded edge 121 is connected with the outer wall of the battery box 2 through a connecting piece.

Further, in this embodiment, the flange 121 is provided with a first mounting hole 101, the outer wall of the battery box 2 is provided with a second mounting hole 202, and the flange 121 and the outer wall of the battery box 2 are connected by a screw 4 and a nut (not shown). The expansion box 1 and the battery box 2 are detachably connected through screws 4 and nuts, and disassembly and assembly are facilitated.

Further, in the present embodiment, referring to fig. 1, the surface of the folded edge 121 is coated with a ring of waterproof glue 3. The waterproof glue 3 covers the gap between the folded edge 121 and the outer wall of the battery box 2 and the screw 4 to achieve a good waterproof effect.

Referring to fig. 3, fig. 2 and fig. 1 in sequence, when the battery equalization management device 8 or other devices need to be installed, a second installation hole 202 and a wire passing hole 201 are drilled at corresponding positions on the outer wall of the battery box 2, the battery equalization management device 8 or other devices needing to be installed are fixed on the surface of the battery box 2, the battery equalization management device 8 or other devices and a storage battery in the battery box 2 are connected through a cable 6, the expansion box 1 is covered outside the battery equalization management device 8 or other devices and is fixed on the battery box 2, and a thick layer of waterproof glue 3 is coated at the connection position of a surrounding plate 12 of the expansion box 1 and the outer wall of the battery box 2.

In another embodiment of the present application, the folded edge 121 is bonded to the outer wall of the battery case 2. The surface of the folded edge 121 is coated with a ring of waterproof glue 3. The waterproof glue 3 covers the gap between the folded edge 121 and the outer wall of the battery box 2 to achieve a good waterproof effect.

In another embodiment of the present application, the folded edge 121 is provided with a jack, the outer wall of the battery box is provided with a buckle (not shown in the figure), and the folded edge 121 and the outer wall of the battery box 2 are connected through the jack and the buckle.

In another embodiment of the present application, the end of the enclosure 12 connected to the battery box 2 is provided with a plurality of connecting lugs (not shown in the drawings) along the periphery of the enclosure 12, and the connecting lugs are connected with the outer wall of the battery box 2 through connecting members.

Further, in this embodiment, the first mounting hole 101 is provided on the engaging lug, the second mounting hole 202 is provided on the outer wall of the battery box 2, and the engaging lug is connected with the outer wall of the battery box 2 through the screw 4 and the nut. The expansion box 1 and the battery box 2 are detachably connected through screws 4 and nuts, and disassembly and assembly are facilitated.

In another embodiment of the present application, referring to fig. 2, the battery case 2 includes an upper case 21 and a lower case 22 which are coupled to each other. The expansion box 1 is arranged on the outer wall of the upper box body 21. The expansion box 1 is arranged on the upper surface of the battery box 2, and maintenance is facilitated. The extension case 1 may be provided on the lower end surface of the battery case 2. If the expansion box 1 is small in volume, it may be disposed on the side of the battery box 2, and is not particularly limited herein.

In another embodiment of the present application, referring to fig. 3 and 4, the battery box 2 further includes a battery equalization management device 8 disposed in the extension box 1, and the cable 6 of the battery equalization management device 8 passes through the wire through hole 201 to be electrically connected with the storage battery in the battery box 2.

In another embodiment of the present application, referring to fig. 2, fig. 4 and fig. 5, the expansion box 1 is further provided with a communication port 102, and a cable waterproof connector is arranged on the communication port 102 in a penetrating manner. The waterproof Cable joint is also known as a Cable gland and a Cable fixed head, and is widely applied to fixing and protecting wires and cables, and is waterproof and dustproof. The structure of the cable watertight connector is a conventional cable watertight connector structure, and will not be described in detail herein. When the equipment in the extension box 1 needs to communicate with the outside, the communication line 7 can be led to the outside using a cable waterproof connector.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The battery box expansion structure is characterized by comprising a battery box with a built-in storage battery and an expansion box for accommodating expansion equipment, wherein the expansion box is arranged on the battery box and comprises a top plate and a surrounding plate which are connected, and the surrounding plate is arranged around the periphery of the top plate to form a tray body with an opening at the bottom for accommodating the expansion equipment; a wire passing hole positioned in the top plate projection range of the expansion box is formed in the outer wall of the battery box, and a cable of the expansion equipment penetrates through the wire passing hole to be connected with a storage battery in the battery box; one end of the coaming is connected with the top plate, the other end of the coaming is a connecting end connected with the outer wall of the battery box, and waterproof glue is coated in a connecting gap between the connecting end of the coaming and the outer wall of the battery box.

2. The battery box expanding structure as claimed in claim 1, wherein one end of the enclosing plate connected with the outer wall of the battery box extends outwards in the radial direction to form a folded edge, and the folded edge is connected with the outer wall of the battery box through a connecting piece.

3. The battery box expanding structure of claim 2, wherein a first mounting hole is formed in the folded edge, a second mounting hole is formed in the outer wall of the battery box, and the folded edge is connected with the outer wall of the battery box through a screw and a nut.

4. The battery box expansion structure of claim 3, wherein the surface of the folded edge is coated with a ring of the waterproof glue.

5. The battery box expanding structure of claim 2, wherein the folded edge is provided with a jack, the outer wall of the battery box is provided with a buckle, and the folded edge and the outer wall of the battery box are connected through the jack and the buckle.

6. The battery box expansion structure of claim 1, wherein the end of the enclosing plate connected with the outer wall of the battery box extends radially outwards to form a folded edge, and the folded edge is bonded with the outer wall of the battery box.

7. The battery box expansion structure of claim 1, wherein the end of the enclosure plate connected with the battery box is provided with a plurality of connecting lugs along the periphery of the enclosure plate, and the connecting lugs are connected with the outer wall of the battery box through connecting pieces.

8. The battery box expansion structure of claim 1, wherein the battery box comprises an upper box body and a lower box body which are mutually folded, and the expansion box is arranged on the outer wall of the upper box body.

9. The battery box expanding structure of claim 1, wherein the battery box further comprises a battery equalization management device arranged in the expanding box, and a cable of the battery equalization management device passes through the wire passing hole to be electrically connected with a storage battery in the battery box.

10. The battery box expansion structure of any one of claims 1 to 9, wherein a communication port is further provided on the expansion box, and a cable waterproof joint is provided on the communication port in a penetrating manner.