CN218827574U - Battery package box, battery package and vehicle - Google Patents

Abstract

The embodiment of the utility model provides a battery package box, battery package and vehicle. The battery pack case includes: the box comprises a first box body, a second box body and a third box body, wherein the first box body is provided with a mounting opening, and the mounting opening is communicated with the inside of the first box body; the second box body is arranged at the mounting opening, is connected with the first box body, and has an axis inclined relative to the surface of the mounting opening; the installation department is formed in the second case body, the axis of installation department for the surface slope in place of installing port, the installation department with first case body is inside to communicate with the external world, install the connector in the installation department.

Description

Battery package box, battery package and vehicle

Technical Field

The embodiment of the utility model provides a relate to battery package technical field, more specifically, the embodiment of the utility model relates to a battery package box, battery package and vehicle.

Background

As a storage device for an electric vehicle or a hybrid vehicle, a battery pack needs to be provided with a device for electrical and communication connection with the entire vehicle or other external equipment, which is generally a connector.

In the prior art, the connector provided on the battery pack is generally vertically mounted on the battery pack case by a fastener such as a screw, wherein the connector provided on the entire vehicle or equipment is then vertically connected with the connector provided on the battery pack.

This kind of connected mode among the prior art can cause very big waste to the battery package space at present, has reduced battery package's efficiency in groups and energy volume density, and then has influenced the continuation of the journey mileage of car.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new technical scheme of battery package box, battery package and vehicle.

In a first aspect, the utility model provides a battery package box. The battery pack case includes:

the box comprises a first box body, a second box body and a third box body, wherein the first box body is provided with a mounting opening, and the mounting opening is communicated with the inside of the first box body;

the second box body is arranged at the mounting opening, is connected with the first box body, and has an axis inclined relative to the surface of the mounting opening;

the installation department is formed in the second case body, the axis of installation department for the surface slope in place of installing port, the installation department with first case body is inside to communicate with the external world, install the connector in the installation department.

Optionally, the first box body and the second box body are detachably connected.

Optionally, the first box body and the second box body are integrally formed to form an integral structural member.

Optionally, the side wall of the first box body is provided with the mounting port;

a surface provided in a circumferential direction of the second tank body is connected to the side wall by a fastener.

Optionally, the angle range of the acute angle formed between the axis of the second tank body and the surface of the mounting opening is: alpha is more than 20 degrees and less than 70 degrees.

Optionally, the connection mode of the connector and the mounting portion includes: one of a snap fit connection, an adhesive connection, or a magnetic attachment connection.

Optionally, the mounting portion comprises an annular support portion;

the outer surface of the annular supporting part is connected with the inner wall of the second box body;

a clamping groove is formed on the annular supporting part;

the connector is provided with an elastic arm, a protruding portion is formed on the elastic arm, and the protruding portion is connected with the clamping groove in a matched mode.

Optionally, the mounting portion further comprises a first receiving portion;

the first accommodating part includes a first circumferential sidewall provided in a circumferential direction thereof, wherein one end of the first circumferential sidewall is connected with the annular support part;

under the condition that the protruding portion is connected with the clamping groove in a matched mode, the elastic arm is abutted to the inner surface of the first circumferential side wall.

Optionally, the mounting portion further comprises a second accommodating portion, and the second accommodating portion is arranged closer to the inside of the first box body relative to the first accommodating portion;

the second accommodating portion includes a second circumferential side wall provided in a circumferential direction thereof, wherein one end of the second circumferential side wall is connected to the annular support portion;

the connector is provided with a recessed groove, the second circumferential side wall is embedded in the recessed groove, and sealing parts are filled in the second circumferential side wall and the recessed groove.

Optionally, the connector comprises a first electrical connection and a second electrical connection;

the first electrical connection portion is configured to be connected with an electrical connection line inside a battery pack;

the second electrical connection portion is configured to be connected with an electrical connection line of an external device.

In a second aspect, a battery pack is provided. The battery pack comprises a battery core and the battery pack case body according to the first aspect.

In a third aspect, a vehicle is provided. The vehicle includes the battery pack according to the second aspect.

The embodiment of the utility model provides an in, provide a battery package box, through setting up second case body and the installation department slope that sets up in second case body inside, set up the connector in the installation department inside and set up for first case body slope, reduce the connector to the occuping of size space, improved battery package and become efficiency in groups, further promote battery capacity in limited space to extension vehicle continuation of the journey mileage.

Other features of the present description and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a schematic view of a battery pack in one view.

Fig. 2 is a schematic structural view of another view angle of the battery pack.

Fig. 3 showsbase:Sub>A cross-sectional view of the structure atbase:Sub>A-base:Sub>A in fig. 2.

Fig. 4 is a schematic view showing the fitting of the connector to the second casing body.

Fig. 5 is a schematic view showing a structure in which the connector is mounted in the mounting portion.

Description of reference numerals:

1. a first tank body; 10. an installation port; 11. a first cable;

2. a second tank body; 20. a first side wall; 201. a first sub-sidewall; 202. a second sub-sidewall;

21. an installation part; 211. an annular support portion; 2111. a first surface; 2112. a second surface; 2113. a card slot; 212. a first accommodating portion; 2121. a first circumferential sidewall; 213. a second accommodating portion; 2131. a second circumferential side wall;

22. a connector; 221. a connector male end; 222. a connector female end; 223. a resilient arm; 2231. a boss portion; 224. a recessed groove; 225. a first electrical connection portion;

23. a second side wall; 231. a third sub-sidewall; 232. a fourth sub-sidewall;

3. a second cable;

4. and (5) battery cores.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The embodiment of the utility model provides a battery package box. Referring to fig. 1 to 5, the battery pack case includes: a first tank body 1 and a second tank body 2.

The first box body 1 is provided with a mounting port 10, and the mounting port 10 is communicated with the inside of the first box body 1. The second box body 2 is arranged at the mounting opening 10 and is connected with the first box body 1, and the axis of the second box body 2 is inclined relative to the surface of the mounting opening 10;

an installation part 21 is formed in the second box body 2, the axis of the installation part 21 is inclined relative to the surface where the installation opening 10 is located, the installation part 21 is communicated with the inside and the outside of the first box body 1, and a connector 22 is installed in the installation part 21.

In other words, the battery pack case mainly includes a first case body 1 and a second case body 2, where the first case body 1 is used for accommodating the battery cells and other functional components inside the battery pack. The second case body 2 is for accommodating the connector 22. Wherein the connector 22 functions to electrically connect the battery pack and an external device.

In this embodiment, the first casing body 1 is provided with an attachment opening 10, and the attachment opening 10 is used for attaching the second casing body 2. Wherein the mounting port 10 communicates with the inside of the first case body 1 so that the second case body 2 is mounted in the mounting port 10, and the connector 22 accommodated in the second case body 2 can be connected to the BMS or other functional components inside the first case body 1 through the first cable 11.

In this embodiment, the second casing body 2 is connected to the first casing body 1 through a mounting port 10 provided in the first casing body 1. For example, the second tank body 2 and the first tank body 1 may be detachably connected, or the second tank body 2 and the first tank body 1 may be integrally formed.

Specifically, when the second tank body 2 is connected to the first tank body 1, the axis of the second tank body 2 is inclined with respect to the surface of the mounting port 10, that is, the second tank body 2 is inclined with respect to the first tank body 1 (excluding the relationship in which the first tank body 1 and the second tank body 2 are vertically arranged and excluding the relationship in which the first tank body 1 and the second tank body 2 are arranged in parallel).

The second box body 2 is used for accommodating the connector 22, and because the axis of the second box body 2 is inclined relative to the surface where the mounting port 10 is located, and the connector 22 is connected with the first cable 11 inside the first box body 1 through the mounting port 10, so as to be connected with the BMS or other functional components inside the first box body 1, the connector 22 arranged inside the second box body 2 is also inclined relative to the first box body 1, that is, the relation that the connector 22 and the first box body 1 are vertically arranged is eliminated, and the relation that the first box body 1 and the second box body 2 are arranged in parallel is eliminated. Compared with the design of connector 22 direct perpendicular on the battery package box among the prior art, the embodiment of the utility model provides a set up through the slope of second case body 2 for the inside connector 22 of second case body 2 sets up for the slope of first case body 1, can reduce the occupation of connector 22 to size space, has improved battery package group efficiency, further promotes battery capacity in limited space, thereby prolongs the vehicle continuation of the journey mileage.

Specifically, the second tank body 2 is disposed obliquely with respect to the first tank body 1, and a mounting portion 21 is formed in the second tank body 2, the mounting portion 21 being used for mounting a connector 22. In this embodiment, the mounting portion 21 for mounting the connector 22 is also disposed obliquely with respect to the first tank body 1, and when the connector 22 is mounted in the mounting portion 21, the connector 22 is also disposed obliquely with respect to the first tank body 1. Connector 22 sets up for first case body 1 slope, can reduce connector 22 to the occupation of size space, has improved battery package group efficiency, further promotes battery capacity in limited space to extension vehicle continuation of the journey mileage.

In an alternative embodiment, the connector 22 includes a male connector end 221 and a female connector end 222, and the mounting portion 21 formed inside the second case body 2 serves as a mounting interface for the male connector end 221, and the shape and structure of the mounting portion 21 are determined according to the shape of the male connector end 221. If the mounting portion 21 is complicated in structure and cannot be made of metal materials, engineering plastics with high strength can be used for replacement, and mass production can be achieved through in-mold injection molding or forming processes.

In addition, a mounting part 21 is formed in the second case body 2, wherein the mounting part 21 communicates with the inside of the first case body 1 and the outside, so that the connector 22 is connected with the BMS or other functional components inside the first case body 1 through the first cable 11, and so that the connector 22 is electrically connected with external devices through the second cable 3. The external device may be a vehicle, for example.

In a specific embodiment, the connector 22 is mounted on the first tank body 1 with a specially designed second tank body 2, the second tank body 2 being mounted obliquely to the first tank body 1, so that the connector 22 is disposed obliquely with respect to the first tank body 1, rather than being mounted vertically. For example, assuming that the length of the connector 22 after the male end and the female end are assembled is 100mm, and the necessary extending lengths of the first cable 11 and the second cable 3 are 25mm, the connector 22 is vertically mounted on the battery pack case in the prior art, and the width dimension occupied by the connector 22 and the cables is 100+25 =150mm in the prior art. This peripheral space within 150mm length has not been effective in utilizing or increasing battery capacity; when the battery pack is installed in an inclined manner (for example, the inclination angle is 30 °, namely, the acute angle between the axis of the second case body 2 and the surface of the installation opening 10 is 30 °), the occupied size in the width direction is 150 × sin30 ° =75mm, namely, the size utilization rate is improved by 50%, and the grouping efficiency of the battery pack is greatly improved. And original connector 22 size is longer, and cable length is longer, the utility model discloses the size advantage that connector 22 slope setting brought will also be big more.

Therefore according to the utility model provides a battery package box through installing second case body 2 slope on first case body 1, sets up the inside connector 22 of second case body 2 and sets up for first case body 1 slope, reduces the occuping of connector 22 to size space, has improved battery package and has become efficiency in groups, further promotes battery capacity in limited space to extension vehicle continuation of the journey mileage.

In one embodiment, as shown in fig. 3, the first tank body 1 and the second tank body 2 are detachably connected.

In this embodiment, the connection manner of the first tank body 1 and the second tank body 2 is defined, wherein the first tank body 1 and the second tank body 2 are detachably connected to facilitate the detachment and placement of the second tank body 2; wherein when dismantling second case body 2 from first case body 1, the user can overhaul the inside part of first case body 1 through installing port 10 this moment, and second case body 2 can expand and become the access cover this moment, avoids additionally forming the maintenance worker on first case body 1, further promotes space utilization, reduces battery package material cost simultaneously.

For example, the first tank body 1 and the second tank body 2 may be fastened and connected by screws, or the first tank body 1 and the second tank body 2 may be connected by magnetic attraction.

In an alternative embodiment, when the first box body 1 and the second box body 2 are detachably connected, the material of the first box body 1 and the material of the second box body 2 may be the same or different. For example, the material of the first box body 1 and the material of the second box body 2 may both be engineering plastic, or the material of the first box body 1 may be engineering plastic, and the material of the second box body 2 may be a metal material.

In one embodiment, the first case body 1 and the second case body 2 are integrally formed to form an integral structural member.

In this embodiment, the connection manner of the first case body 1 and the second case body 2 is defined, in which the first case body 1 and the second case body 2 are formed by integral molding. For example, the first tank body 1 and the second tank body 2 may be integrally formed by injection molding. When the first box body 1 and the second box body 2 are formed in an integrated forming mode, the assembling procedure of the battery pack box body is simplified.

In an alternative embodiment, when the first box body 1 and the second box body 2 are integrally formed, the material of the first box body 1 is the same as that of the second box body 2. For example, the first case body 1 and the second case body 2 may be made of engineering plastics.

In one embodiment, referring to fig. 3, the side wall of the first tank body 1 is provided with the mounting opening 10; the surface of the second tank body 2 provided in the circumferential direction is connected to the side wall by a fastener.

In this embodiment, the side wall of the first box body 1 is provided with the mounting opening 10, wherein the mounting opening 10 may be provided at an edge region of the side wall of the first box body 1, or the mounting opening 10 may be provided at a middle region of the side wall of the first box body 1, wherein the installation position of the mounting opening 10 is not limited in this embodiment, as long as the second box body 2 can be obliquely mounted on the first box body 1.

In this embodiment, the surface provided in the circumferential direction of the second case body 2 is connected to the side wall, specifically, the second case body 2 is provided on the first case body 1, and in order to realize the connection of the connector 22 provided inside the second case body 2 to the first cable 11 inside the first case body 1 and further to the BMS or other functional components inside the first case body 1, the surface provided in the circumferential direction of the second case body 2 is connected to the side wall by a fastener.

For example, the second tank body 2 is a cylindrical structure in which a circumferential surface thereof is connected to the side wall, or the second tank body 2 is a cubic structure in which a circumferential surface thereof is connected to the side wall.

Wherein in the axial direction of the second box body 2, the second box body 2 may be a structure with two open ends, for example, in the axial direction of the second box body 2, two ends of the second box body 2 are not provided with surfaces; or in the axis direction of second case body 2, the both ends of second case body 2 set up the surface to set up jaggedly on the surface that sets up in its axis direction in second case body 2, so that installation connector 22, also be convenient for simultaneously connector 22 is connected with the inside first cable 11 of first case body 1, and then realizes being connected with the inside BMS of first case body 1 or other functional components, and also be convenient for connector 22 to be connected with external equipment through second cable 3.

In a specific embodiment, in order to improve the connection strength between the second box body 2 and the first box body 1, the second box body 2 comprises a first side wall 20 and a second side wall 23, wherein the first side wall 20 comprises a first sub-side wall 201 and a second sub-side wall 202, wherein the first sub-side wall 201 and the second sub-side wall 202 are integrally formed, the first sub-side wall 201 is obliquely arranged relative to the surface provided with the mounting opening 10, the second sub-side wall 202 is parallel arranged relative to the surface provided with the mounting opening 10, the first sub-side wall 201 extends into the mounting opening 10, the second sub-side wall 202 is positioned outside the mounting opening 10 and is fixedly connected with the surface provided with the mounting opening 10 through bolts;

the second side wall 23 is located outside the mounting opening 10, the second side wall 23 includes a third sub-side wall 231 and a fourth sub-side wall 232, the third sub-side wall 231 and the fourth sub-side wall 232 are integrally formed, the third sub-side wall 231 and the first sub-side wall 201 are oppositely arranged, the fourth sub-side wall 232 is arranged in parallel relative to the surface provided with the mounting opening 10, and the fourth sub-side wall 232 and the surface provided with the mounting opening 10 are connected through fastening bolts.

In one embodiment, the acute angle formed between the axis of the second tank body 2 and the surface of the mounting opening 10 is in the range of: alpha is more than 20 degrees and less than 70 degrees.

In this embodiment, the axis of the second tank body 2 is disposed obliquely with respect to the surface on which the mounting port 10 is located, wherein the angle formed between the axis of the second tank body 2 and the surface on which the mounting port 10 is located is in the range of 0 < α < 90 °. Specifically, considering the length and size of the battery pack, the structural size of the connector 22, the structural rigidity and strength of the second case body 2, and the battery pack efficiency improvement effect, optionally, the included angle formed between the axis of the second case body 2 and the surface where the mounting port 10 is located is 20 ° < α < 70 °.

In one embodiment, the connection manner of the connector 22 and the mounting portion 21 includes: one of a snap connection, an adhesive connection or a magnetic attraction connection.

In this embodiment, the connection manner between the connector 22 and the mounting portion 21 is defined, wherein the connector 22 and the mounting portion 21 may be detachably connected, or the connector 22 and the mounting portion 21 may be non-detachably connected.

For example, the connector 22 and the mounting portion 21 may be connected by a snap-fit method or a magnetic attraction method to realize the detachable connection therebetween; or the connecting part and the mounting part 21 can be connected in an adhesive manner to realize the non-detachable connection of the two.

For example, a first adhesion surface is provided on the mounting portion 21, a second adhesion surface is provided on the surface of the connector 22, the connector 22 is mounted in the mounting portion 21, and the mounting portion 21 and the connector 22 are adhered; alternatively, the first magnetic member may be provided on the mounting portion 21, the second magnetic member may be provided on the surface of the connector 22, the connector 22 may be mounted in the mounting portion 21, and the mounting portion 21 and the connector 22 may be magnetically attracted by the first magnetic member and the second magnetic member.

In the present embodiment, a connection method in which the connector 22 and the mounting portion 21 are fastened with screws is not used. Specifically, when the connector 22 and the mounting portion 21 are fastened together by screws, it is necessary to design a flange surface for connection of the screws and the nuts on the second tank body 2 around the connector 22, and this flange surface will occupy a lot of space, will reduce the size advantage brought by the inclined mounting design, and will make the mounting assembly process more cumbersome.

In one embodiment, the mounting portion 21 includes an annular support portion 211, as described with reference to fig. 4-5; the outer surface of the annular support portion 211 is connected to the inner wall of the second tank body 2; a clamping groove 2113 is formed on the annular supporting part 211; the connector 22 is provided with an elastic arm 223, a convex portion 2231 is formed on the elastic arm 223, and the convex portion 2231 is connected with the slot 2113 in a matching manner.

In this embodiment, the mounting portion 21 is formed inside the second case body 2, and the mounting portion 21 and the second case body 2 may be integrally formed by injection molding. The mounting portion 21 includes an annular support portion 211, and an outer surface of the annular support portion 211 and an inner surface of the second tank body 2 are coupled together.

A clamping groove 2113 is formed on the annular supporting portion 211, the annular supporting portion 211 has a first surface 2111 and a second surface 2112 which are opposite to each other, wherein the clamping groove 2113 may be a through groove, and the clamping groove 2113 penetrates through the first surface 2111 and the second surface 2112; or the notch 2113 is a sunken groove, and the notch 2113 does not penetrate through the second surface 2112 of the annular supporting portion 211. In this embodiment, the specific shape of the card slot 2113 and whether or not it penetrates the second surface 2112 of the annular support portion 211 are not limited as long as the connector 22 can be snapped onto the annular support portion 211.

In order to realize the engagement of the connector 22 with the annular support 211, a resilient arm 223 is provided on the connector 22, and the resilient arm 223 is capable of being elastically deformed so as to mount the connector 22 on the annular support 211. Such as resilient arms 223 on the outer surface of the connector 22.

Specifically, a resilient arm 223 is provided on the outer surface of the connector 22, and the user presses the resilient arm 223 to make the connector 22 extend into the annular support portion 211, and make the projection 2231 on the resilient arm 223 and the notch 2113 on the annular support portion 211 cooperate (for example, the projection is embedded in the notch 2113), at which time the user can release the resilient arm 223, so that the connector 22 is mounted on the mounting portion 21 by means of snap-fitting.

In an alternative embodiment, the mounting portion 21 is formed inside the second tank body 2, the mounting portion 21 includes an annular support portion 211, a first adhesive surface may be formed on an inner surface of the annular support portion 211, a second adhesive surface may be formed on an outer surface of the connector 22, the connector 22 is disposed inside the annular support portion 211, and the connector 22 and the annular support portion 211 are adhered together;

or the mounting part 21 is formed inside the second tank body 2, the mounting part 21 includes the annular supporting part 211, the first magnetic member may be formed on the inner surface of the annular supporting part 211, the second magnetic member may be formed on the outer surface of the connector 22, the connector 22 is disposed inside the annular supporting part 211, and the connector 22 and the annular supporting part 211 are magnetically attracted together.

In one embodiment, referring to fig. 3-5, the mounting portion 21 further includes a first receiving portion 212;

the first receiving portion 212 includes a first circumferential side wall 2121 provided in a circumferential direction thereof, wherein one end of the first circumferential side wall 2121 is connected to the annular supporting portion 211;

with the protrusion 2231 and the notch 2113 in mating engagement, the resilient arm 223 abuts against an inner surface of the first circumferential side wall 2121.

In this embodiment, the mounting portion 21 further includes a first accommodating portion 212, that is, the mounting portion 21 includes the first accommodating portion 212 and an annular supporting portion 211, wherein the first accommodating portion 212 has a hollow structure, and the first accommodating portion 212 and the annular supporting portion 211 are communicated so that the connector 22 is disposed in the mounting portion 21.

In this embodiment, the first accommodating portion 212 includes a first circumferential side wall 2121, and the first circumferential side wall 2121 has a first end and a second end in the axial direction of the second tank body 2, wherein the first end is connected closer to the annular support portion 211 than the second end, and the first end of the first circumferential side wall 2121 is connected to the first surface 2111 of the annular support portion 211. For example, the annular support portion 211 and the first receiving portion 212 may be integrally formed.

In this embodiment, a resilient arm 223 is provided on the outer surface of the connector 22, and the user presses the resilient arm 223 to make the connector 22 extend into the annular support portion 211, and make the projection 2231 on the resilient arm 223 and the notch 2113 on the annular support portion 211 cooperate (for example, the projection is embedded in the notch 2113), at which time the user can release the resilient arm 223 to make the connector 22 mounted on the mounting portion 21 by means of snapping; when the connector 22 is mounted in the mounting portion 21 by a clamping manner, the elastic arm 223 abuts against the first circumferential side wall 2121, the elastic deformation of the elastic arm 223 is limited by the first circumferential side wall 2121, and the elastic arm 223 is prevented from generating too large elastic deformation, so that the matching between the protruding portion 2231 and the clamping groove 2113 is affected.

In one embodiment, referring to fig. 3 to 5, the mounting portion 21 further includes a second receiving portion 213, and the second receiving portion 213 is disposed closer to the inside of the first tank body 1 than the first receiving portion 212;

the second receiving portion 213 includes a second circumferential sidewall 2131 provided in a circumferential direction thereof, wherein one end of the second circumferential sidewall 2131 is connected to the annular support portion 211;

a recess groove 224 is formed in the connector 22, the second circumferential side wall 2131 is fitted into the recess groove 224, and a sealing portion is filled in the second circumferential side wall 2131 and the recess groove 224.

In one embodiment, the mounting portion 21 further includes a second receiving portion 213, i.e., the mounting portion 21 includes an annular supporting portion 211, a first receiving portion 212, and a second receiving portion 213. Wherein the second receiving portion 213 has a hollow structure, and the second receiving portion 213 is connected to the annular supporting portion 211 so that the connector 22 is disposed in the mounting portion 21.

In an alternative embodiment, the diameter size of the second receiving portion 213 is larger than that of the first receiving portion 212, and the connector 22 is mounted in the mounting portion 21 through the second receiving portion 213; the present embodiment does not limit the sizes of the first receiving portion 212 and the second receiving portion 213, as long as the connector 22 can be mounted in the mounting portion 21.

In this embodiment, the second receiver 213 includes a second circumferential side wall 2131, and in the axial direction of the second tank body 2, the second circumferential side wall 2131 has a first end and a second end, wherein the first end is connected closer to the annular support portion 211 than the second end, and the first end of the second circumferential side wall 2131 is connected to the second surface 2112 of the annular support portion 211. For example, the annular support portion 211 and the second receiving portion 213 may be integrally formed, that is, the annular support portion 211, the first receiving portion 212, and the second receiving portion 213 may be integrally formed.

In this embodiment, in order to match the structure of the connector 22, the second receiving portion 213 is formed on the mounting portion 21, wherein when the connector 22 is mounted in the mounting portion 21, the second circumferential side wall 2131 of the second receiving portion 213 protrudes into the concave groove 224 of the connector 22, which improves the connection strength of the connector 22 mounted in the mounting portion 21. In addition, the second circumferential side wall 2131 and the concave groove 224 are filled with a sealing portion, so that the connection sealing performance between the mounting portion 21 and the connector 22 is improved.

In this embodiment, the connector 22 and the mounting portion 21 are connected by a snap-fit manner, and the first receiving portion 212, the annular supporting portion 211 and the second receiving portion 213 in the mounting portion 21 provide functions of assembly guiding, fool-proofing, fastening, sealing and the like for the connector 22.

The structure of the mounting portion 21 includes, but is not limited to, the above-defined structure, and the internal structure of the mounting portion 21 and the structure of the connector 22 may match each other.

In one embodiment, as shown with reference to fig. 3 and 5, the connector 22 includes a first electrical connection 225 and a second electrical connection;

the first electrical connection portion 225 is configured to be connected with an electrical connection line inside the first tank body 1;

the second electrical connection portion is configured to be connected with an electrical connection wire of an external device.

In this embodiment, the connector 22 includes a first electrical connection portion 225 and a second electrical connection portion, wherein the first electrical connection portion 225 is disposed closer to the inside of the first tank body 1 than the second electrical connection portion.

When the connector 22 is mounted in the mounting portion 21, the mounting portion 21 and the second tank body 2 can expose the first electrical connection portion 225, and an electrical connection wire (the first cable 11) inside the first tank body 1 can be connected to the first electrical connection portion 225, so that the connector 22 is electrically connected to other components inside the first tank body 1 through the electrical connection wire inside the first tank body 1;

when the connector 22 is mounted in the mounting portion 21, since the mounting portion 21 communicates with the outside, the second electrical connection portion is not shielded by the mounting portion 21 and the second casing body 2, and the electrical connection line (the second cable 3) of the external device can be connected to the second electrical connection portion.

In an alternative embodiment, when the cross section of the connector 22 is rectangular or rectangular-like, in order to make the grouping efficiency improvement more remarkable, the connector 22 is optionally mounted in the mounting portion 21 along the length direction of the connector 22.

In a second aspect, a battery pack is provided. The battery pack comprises a battery core 4 and the battery pack box body of the first aspect.

In this embodiment, a battery pack is provided, the battery pack adopts the above battery pack box, the inside accommodation space of battery pack has been saved, more spaces can be reserved inside the battery pack promptly and more structures such as electric core 4 are accommodated, the efficiency of uniting and energy volume density of battery pack have been promoted.

Specifically, a plurality of battery cells 4 are accommodated in the battery pack, and the plurality of battery cells 4 are uniformly arranged in the battery pack. Referring to fig. 1 and 3, the length direction of the battery cell is arranged along the width direction of the battery pack, and one end face of the battery cell is opposite to the side wall provided with the second box body, so that the grouping efficiency and the energy volume density of the battery pack are improved.

In a third aspect, a vehicle is provided. The vehicle includes the battery pack according to the second aspect.

In this embodiment, a vehicle is provided, wherein the vehicle comprises the battery pack described above. The vehicle may be a hybrid vehicle or an electric vehicle.

In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.

Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (12)

1. A battery pack case, comprising:

the box comprises a first box body (1), wherein a mounting opening (10) is formed in the first box body (1), and the mounting opening (10) is communicated with the inside of the first box body (1);

a second tank body (2), wherein the second tank body (2) is arranged at the mounting opening (10), is connected with the first tank body (1), and has an axis inclined relative to the surface of the mounting opening (10);

an installation part (21) is formed in the second box body (2), the axis of the installation part (21) is inclined relative to the surface where the installation opening (10) is located, the installation part (21) is communicated with the inside and the outside of the first box body (1), and a connector (22) is installed in the installation part (21).

2. The battery pack case according to claim 1, wherein the first case body (1) and the second case body (2) are detachably connected.

3. The battery pack case according to claim 1, wherein the first case body (1) and the second case body (2) are integrally formed to form an integral structure.

4. The battery pack case according to claim 1, wherein the mounting opening (10) is opened on a side wall of the first case body (1); the surface of the second box body (2) arranged in the circumferential direction is connected with the side wall through a fastener.

5. The battery pack case according to claim 1, wherein the acute angle formed between the axis of the second case body (2) and the surface of the mounting port (10) is in the range of: alpha is more than 20 degrees and less than 70 degrees.

6. The battery pack case according to claim 1, wherein the connector (22) and the mounting portion (21) are connected in a manner including: one of a snap connection, an adhesive connection or a magnetic attraction connection.

7. The battery pack case according to claim 1 or 6, wherein the mounting portion (21) includes an annular support portion (211);

the outer surface of the annular supporting part (211) is connected with the inner wall of the second box body (2);

a clamping groove (2113) is formed on the annular supporting part (211);

the connector (22) is provided with an elastic arm (223), a protruding portion (2231) is formed on the elastic arm (223), and the protruding portion (2231) is connected with the clamping groove (2113) in a matched mode.

8. The battery pack case according to claim 7, wherein the mounting portion (21) further includes a first receiving portion (212);

the first receiving part (212) includes a first circumferential sidewall (2121) provided in a circumferential direction thereof, wherein one end of the first circumferential sidewall (2121) is connected with the annular support part (211);

the resilient arm (223) abuts an inner surface of the first circumferential side wall (2121) when the protrusion (2231) is mated with the notch (2113).

9. The battery pack case according to claim 8, wherein the mounting portion (21) further includes a second accommodating portion (213), the second accommodating portion (213) being disposed closer to the inside of the first case body (1) than the first accommodating portion (212);

the second receiving portion (213) includes a second circumferential sidewall (2131) provided in a circumferential direction thereof, wherein one end of the second circumferential sidewall (2131) is connected to the annular support portion (211);

a recessed groove (224) is formed in the connector (22), the second circumferential side wall (2131) is embedded in the recessed groove (224), and a sealing portion is filled in the second circumferential side wall (2131) and the recessed groove (224).

10. The battery pack case according to claim 1, wherein the connector (22) includes a first electrical connection portion (225) and a second electrical connection portion;

the first electrical connection portion (225) is configured to be connected with an electrical connection line inside the first tank body (1);

the second electrical connection portion is configured to be connected with an electrical connection wire of an external device.

11. A battery pack, characterized in that the battery pack comprises a battery cell (4) and a battery pack case according to any one of claims 1-10.

12. A vehicle characterized in that the vehicle comprises the battery pack according to claim 11.

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