CN214013076U

CN214013076U - Battery package is with direction stop device, battery package assembly and electric automobile

Info

Publication number: CN214013076U
Application number: CN202022876046.3U
Authority: CN
Inventors: ***; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-20
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a battery package is with direction stop device, battery package assembly and electric automobile. The guiding and limiting device for the battery pack comprises a shell, an elastic mechanism and a limiting piece, wherein the shell is provided with an accommodating cavity and a limiting hole; elastic mechanism and locating part are located hold the intracavity, just the locating part with the one side that the elastic mechanism deviates from has the bellying that passes and protrusion spacing hole, elastic mechanism quilt the locating part with the casing is pressed and is located hold the intracavity, the locating part with pass through between the casing elastic mechanism floats and connects. The utility model discloses in, through set up elastic mechanism in the casing, realize the unsteady connection between casing and the elastic component, can enough guarantee the steady installation of battery package and battery fixing base, avoid the card to die, reduced again in the installation to carry out the requirement of counterpointing to the battery package to be favorable to promoting the installation effectiveness.

Description

Battery package is with direction stop device, battery package assembly and electric automobile

Technical Field

The utility model relates to a battery is direction stop device, battery package assembly and electric automobile for package.

Background

The electric automobile is provided with a battery pack, and a battery body in the battery pack is used as a power source of the electric automobile. The battery package passes through the battery fixing base to be installed on the frame of car, and both keep fixed during daily use, need take off the battery package of insufficient voltage from the battery fixing base when changing the battery, then install the battery package of full charge on the battery fixing base, and in the installation, the stationarity of battery package and the counterpoint of frame are especially important, otherwise damage the battery package main part easily, and after the installation, reliability between battery package and the battery fixing base is also very important. In the prior art, the stability of the battery pack during installation and the reliability between the battery pack and the battery fixing seat after installation need to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above-mentioned defect among the prior art, provide a battery package is with direction stop device, battery package assembly and electric automobile.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

a battery pack guiding and limiting device comprises:

the shell is provided with an accommodating cavity and a limiting hole;

elastic mechanism and locating part, elastic mechanism and locating part are located hold the intracavity, just the locating part with the one side that the elastic mechanism deviates from has and passes and protrusion the bellying in spacing hole, elastic mechanism quilt the locating part with the casing is pressed and is located hold the intracavity, the locating part with pass through between the casing elastic mechanism is floated and is connected.

Preferably, the elastic mechanism comprises an elastic sheet, and two ends of the elastic sheet are respectively abutted to the limiting piece and the shell; the elastic mechanism is provided with one elastic sheet, or the elastic mechanism is provided with a plurality of elastic sheets which are distributed at intervals;

or,

the elastic mechanism comprises an elastic rubber block, and two ends of the elastic rubber block are respectively abutted against the limiting piece and the shell;

or,

the elastic mechanism comprises an elastic part, and the elastic part is any one or more of a spiral spring, a disc spring and a pagoda spring.

Preferably, a limit protrusion for radially limiting the elastic mechanism is fixed in the housing, and the elastic mechanism is sleeved or inserted in the limit protrusion;

and/or the limiting piece is provided with a limiting ring, and the elastic mechanism is sleeved or inserted in the limiting ring;

and/or, the limiting piece is provided with a limiting groove, and the elastic mechanism is clamped in the limiting groove.

Preferably, one surface of the limiting part facing the elastic mechanism is provided with a limiting matching part, and the limiting matching part is one or more of a limiting protrusion, a limiting ring or a limiting groove.

Preferably, one surface of the limiting part, which is provided with the limiting matching part, is provided with a plurality of concave parts, and strip-shaped ribs are arranged among the plurality of concave parts.

Preferably, the limiting matching part is an annular rib, the elastic mechanism is inserted into or sleeved on the annular rib, and a plurality of blind holes are formed in the annular rib.

Preferably, the radius of the blind hole is gradually reduced from the center of the annular rib outwards.

Preferably, the bar-shaped rib connects the annular rib and the side wall of the recess.

Preferably, the shape of the limiting hole is matched with that of the bulge, and the periphery of the bulge is abutted against the inner wall surface of the limiting hole or is reserved with a gap of 0.5-5 mm.

Preferably, the position limiting hole is formed in a mounting surface of the housing, and the housing further has a housing guide surface gradually extending from one end of the housing toward the mounting surface and inclined with respect to the mounting surface.

Preferably, the protruding end of the protruding portion of the limiting member has a limiting surface, and the protruding portion further has a limiting guide surface inclined from the top of the protruding portion to the limiting surface.

Preferably, the housing comprises:

an inner shell having an inner cavity with one end open;

the outer shell is provided with an outer shell guide surface and the limiting hole, covers the inner cavity and is detachably connected with the inner shell.

Preferably, the side wall of the outer shell is provided with a clamping hole, the outer side wall of the inner shell is provided with a clamping block, the clamping block is sequentially connected with a guide surface, a transition surface and a clamping surface, the first end of the guide surface is connected with the side wall of the inner shell, the transition surface is parallel to the side wall of the inner shell, and the clamping surface is perpendicular to and connected with the side wall of the inner shell;

or, be provided with the joint piece on the inside wall of shell, be provided with the joint hole on the lateral wall of inner shell, joint piece joint in the joint is downthehole.

Preferably, the periphery of the shell guide surface is respectively connected with three side surfaces of the shell and the end surface of the shell;

and/or the inclination angle of the shell guide surface relative to the limiting surface is less than 45 degrees;

and/or the outer shell and the inner shell are both provided with drain holes communicated with the containing cavity and the outside, and the drain holes are positioned at one end opposite to the guide surface of the outer shell;

and/or the middle part of the inner shell is provided with a limiting bulge sunken towards the inner cavity and used for radially limiting the elastic mechanism;

and/or the inner shell is provided with a plurality of threaded columns protruding towards the inner cavity, the threaded columns are provided with threaded holes, and the threaded holes are through holes;

and/or the inner shell is provided with a plurality of inner shell mounting surfaces, and an area of the inner shell, which avoids the inner shell mounting surfaces, is provided with an inner shell groove which is sunken towards the inner cavity;

and/or one end of the inner shell corresponding to the guide surface of the outer shell is provided with an outer shell groove which is concave towards the outer shell;

and/or the inner shell is provided with an inclined transition surface, one end of the inner shell, which corresponds to the outer shell guide surface, is recessed towards the inner cavity, and is connected with an inner shell mounting surface through the inclined transition surface;

and/or a groove is cut on the side part of the inner shell and used for avoiding the guide surface of the outer shell.

A battery pack comprises a battery pack main body and the battery pack guiding and limiting device, wherein the battery pack main body is provided with a side mounting surface, and the guiding and limiting device for the battery pack is mounted on the side mounting surface.

Preferably, the height of the guiding and limiting device for the battery pack, which is higher than the mounting surface on the upper side of the battery pack main body, is greater than the projection length of the shell guiding surface on the shell.

A battery pack assembly comprises a battery fixing seat and the guiding and limiting device for the battery pack, wherein one end of a shell, which is opposite to a limiting hole, is detachably connected with the battery pack; when the battery pack is installed on the battery fixing seat, the battery fixing seat is guided to the limiting surface through the shell guide surface positioned on the shell, and then the battery pack is mutually abutted to the limiting surface.

An electric vehicle comprises the battery pack assembly.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses in, through set up elastic mechanism in the casing, realize the unsteady connection between casing and the elastic component, can enough guarantee the steady installation of battery package and battery fixing base, avoid the card to die, reduced again in the installation to carry out the requirement of counterpointing to the battery package to be favorable to promoting the installation effectiveness.

Drawings

Fig. 1 is a schematic view of a partial structure of a battery pack assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of an installation state of a battery pack assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a battery pack according to an embodiment of the present invention

Fig. 5 is a schematic structural diagram of a positioning assembly according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a positioning assembly according to an embodiment of the present invention;

fig. 7 is a comparison diagram of the positioning assembly before and after installation, wherein the left side is a diagram before installation, and the right side is a diagram after installation;

fig. 8 is a schematic structural diagram of a limiting member according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a position limiting member according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a position limiting member according to an embodiment of the present invention;

fig. 11 is an exploded view of a positioning assembly according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 16 is an exploded view of a guiding and limiting device for a battery pack according to an embodiment of the present invention;

fig. 17 is another exploded view of the guide and stop device for the battery pack of fig. 16;

fig. 18 is an exploded view of a guiding and limiting device for a battery pack according to an embodiment of the present invention;

FIG. 19 is another exploded view of the battery pack guide and stop arrangement of FIG. 18;

fig. 20 is an exploded view of a guiding and limiting device for a battery pack according to an embodiment of the present invention;

fig. 21 is another exploded view of the guide and stop device for the battery pack of fig. 20;

fig. 22 is an exploded view of a stop device for a battery pack according to an embodiment of the present invention;

fig. 23 is another exploded view of the retainer for the battery pack of fig. 22;

fig. 24 is an exploded view of a stop device for a battery pack according to an embodiment of the present invention;

fig. 25 is another exploded view of the retention device for the battery pack of fig. 24.

Description of reference numerals:

battery pack assembly 1000

Battery pack 100

Battery pack body 1

Side mounting surface 11

Positioning assembly 2

Case 21

Accommodating chamber 211

Limiting hole 212

Limit bump 213

Accommodating groove 214

Inner housing 215

Outer shell 216

Inner chamber 217

Drain holes 218

Clamping hole 219

Clamp block 2110

Guide surface 2111

Transition surface 2112

Clamping surface 2113

Mounting surface 2114

Housing mounting face 2115

Housing notch 2116

Housing guide surface 2117

Notch 2118

First main board 2119

First coaming 2120

Threaded post 2121

Inner housing mounting face 2122

Inner shell groove 2123

Second main board 2124

Second shroud 2125

Guiding and limiting device 2126 for battery pack

Limiting device 2127 for battery pack

Inclined transition surface 2128

Stopper 22

Convex part 221

Limiting surface 222

Stop collar 223

Recess 224

Bar rib 225

Limit guide surface 226

Base 227

Annular rib 228

Blind hole 229

Elastic mechanism 23

Elastic member 231

Battery holder 3

Side positioning surface 31

Detailed Description

The present invention is further illustrated by the following examples, but is not intended to be limited thereby within the scope of the following examples.

An embodiment of the utility model provides an electric automobile, it has the battery package assembly 1000 of setting on the frame.

Please refer to fig. 1-2 for understanding. The embodiment of the utility model provides a battery package assembly 1000 uses on the electric automobile that above-mentioned embodiment relates.

The battery pack assembly 1000 includes a battery pack 100 and a battery holder 3. The battery fixing seat 3 is used for installing the battery pack 100 on the frame, and the middle part of the battery fixing seat 3 is provided with a space for placing the battery pack 100. The battery pack 100 includes a battery pack body 1 and a positioning module. The battery pack main body 1 is provided with a side mounting surface 11, and any one of the front, rear, left and right side surfaces of the battery pack main body 1 can be the side mounting surface 11; the battery holder 3 has a side positioning surface 31 corresponding to the side mounting surface 11. The positioning module is detachably connected with the battery pack main body 1 and is positioned on the two side mounting surfaces 11. When installing battery package 100 on battery fixing base 3, make battery package 100 from the up-going motion down, the orientation module contacts with battery fixing base 3 gradually, and both mutual direction are until accomplishing the location.

The embodiment of the utility model provides an in can set up orientation module on the side installation face 11 of two relative settings, battery fixing base 3 have two with the side location face 31 of side installation face 11 one-to-one, two side location faces 31 are located the outside of side installation face 11 to the in-process of being convenient for battery package 100 and installing battery fixing base 3 keeps steadily.

In the process of installing the battery pack main body 1 on the battery fixing seat 3, the positioning module is firstly fixed on the side installation surface 11, the positioning module and the side positioning surface 31 form a guiding relation, the positioning module and the side positioning surface 31 are gradually attached and relatively slide, until the state shown in fig. 1 is reached from the state shown in fig. 2, the battery pack main body 1 is fixed on the battery fixing seat 3, at the moment, the positioning module and the side positioning surface 31 are mutually abutted, and therefore the battery pack main body 1 is stably positioned on the battery fixing seat 3.

As shown in fig. 3 and 4, in the embodiment of the utility model, in battery package 100, positioning module includes that a plurality of intervals arrange in the locating component 2 of side installation face 11 to in the positioning effect who improves battery package 100 and battery fixing base 3, promote stability between them, avoid electric automobile driving in-process, because the clearance between battery package 100 and the battery fixing base 3 leads to battery package 100 to control and rock, influence the stability and the security of battery package 100 installation.

The embodiment of the utility model provides a still provide a locating component 2, be applied to foretell battery package 100 in, combine locating component 2 and the application in battery package 100 and battery package assembly 1000 to describe below.

As shown in fig. 5-6, in the embodiment of the present invention, the positioning assembly 2 includes a housing 21 and a limiting member 22. The housing 21 has an accommodating cavity 211 and a limiting hole 212, the limiting member 22 is disposed in the accommodating cavity 211, and one end of the limiting member 22 extends out of the limiting hole 212. The case 21 is fixed to the side mounting surface 11, and one end of the stopper 22 extending out of the stopper hole 212 and the side positioning surface 31 are pressed against each other, and the other end and the case 21 are directly or indirectly pressed against each other, so that the battery pack main body 1 is stably connected to the battery holder 3.

The positioning assembly 2 further includes an elastic mechanism 23, a protruding portion 221 that penetrates through and protrudes out of the limiting hole 212 is disposed on a surface of the limiting member 22 that is away from the elastic mechanism 23, and the protruding portion 221 has a limiting surface 222 that is used for abutting against the side positioning surface 31, in other words, an end of the protruding portion 221 that protrudes out of the limiting hole 212 is a protruding end, and the protruding end has the limiting surface 222, or it is understood that the end surface of the protruding portion has the limiting surface 222; the elastic mechanism 23 is pressed into the accommodating cavity 211 by the limiting member 22 and the housing 21, and has an elastic force perpendicular to the side positioning surface 31 or the limiting surface 222, and the elastic mechanism 23 is pressed into the accommodating cavity 211 by the limiting member 22 and the housing 21, so that when the battery pack main body 1 is fixed on the battery holder 3, the housing 21 and the limiting member 22 can be buffered by the elastic mechanism 23 to realize floating connection, and hard contact is avoided.

Please refer to fig. 7 for understanding. The embodiment of the utility model provides an in, the thickness of casing 21 is c, and locating part 22 extrudes out the thickness on casing 21 surface under the natural state and is d, and the natural state of this department is: the stopper 22 is not yet clamped between the side positioning surface 31 and the side mounting surface 11. When the battery pack 100 is mounted on the battery holder 3, the clearance between the side mounting surface 11 of the battery pack main body 1 and the side positioning surface 31 of the battery holder 3 is e, and the interference between the battery pack main body 1 and the battery holder 3 is f, which is interpreted as the compression of the protrusion 221 after the battery pack main body 1 with the positioning module is mounted on the battery holder 3. Wherein: c + d ═ e + f; f is an arbitrary value between 0.1mm and 2mm, and the interference magnitude is set in the range, so that the mounting and positioning accuracy of the battery pack main body 1 and the battery fixing seat 3 can be ensured, and the connection reliability of the battery pack main body and the battery fixing seat can be ensured.

In the embodiment of the present invention, the elastic mechanism 23 includes an elastic piece, and two ends of the elastic piece are respectively abutted against the limiting member 22 and the housing 21; the elastic mechanism 23 has one elastic sheet, or the elastic mechanism 23 has a plurality of elastic sheets distributed at intervals. Realize the unsteady connection between locating part 22 and the casing 21 through the shell fragment, and then realize the unsteady connection between battery package main part 1 and the battery package fixing base 3, magnitude of interference can be controlled in great within range, and battery package main part 1 can be installed on battery fixing base 3 fast, and the elasticity effect of shell fragment is good, and non-deformable inefficacy is favorable to guaranteeing the reliability that battery package main part 1 and battery fixing base 3 are connected.

In the embodiment of the present invention, the elastic mechanism 23 includes an elastic rubber block, and the two ends of the elastic rubber block are respectively connected to the stop part 22 and the housing 21. The floating connection between the limiting part 22 and the shell 21 is realized through the rubber block, so that the floating connection between the battery pack main body 1 and the battery pack fixing seat 3 is realized, the rubber block is relatively hard, the interference magnitude can be controlled in a small range, and the connection between the battery pack main body 1 and the battery pack fixing seat 3 is stable.

In the embodiment of the present invention, the elastic mechanism 23 includes an elastic member 231, and the elastic member 231 is any one or more of a coil spring, a disc spring and a pagoda spring. Coil spring, dish spring and pagoda spring can improve the homogeneity of locating part 22 atress to the deformation of locating part 22 is more stable, has avoided in the in-process of installing battery package main part 1 in battery fixing base 3, and locating part 22 atress is unbalanced and local slope card is died in spacing hole 212.

As shown in fig. 6, 8, and 9, in the embodiment of the present invention, a radial limiting protrusion 213 for limiting the elastic mechanism 23 is fixed in the housing 21, and the elastic mechanism 23 is sleeved or inserted in the limiting protrusion 213. Further, the elastic mechanism 23 is the elastic member 231, one end of the elastic member 231 is inserted into or sleeved on the limiting protrusion 213, and the limiting protrusion 213 positions and guides the elastic member 231, so that the elastic force direction change caused by the movement of the elastic member 231 in the using process is avoided.

In the embodiment of the present invention, the position-limiting member 22 has a position-limiting ring 223, and the elastic mechanism 23 is sleeved or inserted in the position-limiting ring 223. Further, the elastic mechanism 23 adopts the elastic member 231, one end of the elastic member 231 is inserted into or sleeved on the limit ring 223, and the limit ring 223 positions and guides the elastic member 231, so that the situation that the elastic force changes in direction due to the movement of the elastic member 231 in the using process is avoided.

In the embodiment of the present invention, the position limiting part 22 has a position limiting groove, and the elastic mechanism 23 is clamped into the position limiting groove, and the position limiting groove positions and guides the elastic member 231.

The embodiment of the utility model provides an in, the locating part 22 has spacing matching portion towards the one side of elastic mechanism 23, spacing matching portion is used for carrying on spacing and/or location and/or direction to elastic mechanism 23 to improve elastic mechanism 23's stability, spacing matching portion is one or more in spacing protruding structure, cyclic annular limit structure or the spacing recess, the outside convex structure of terminal surface for locating part 22 is of the spacing protruding structure of this department, the cyclic annular limit structure of this department is for enclosing the structure that closes the ring all around.

The embodiment of the utility model provides an in, the one side that has spacing matching portion of locating part 22 is equipped with a plurality of depressed parts 224, is equipped with bar muscle 225 between a plurality of depressed parts 224, through setting up depressed part 224 and bar muscle 225, has saved the material when having guaranteed the rigidity and the intensity of spacing portion to be difficult for appearing defects such as piling up in the forming process.

In the embodiment of the present invention, the first end of the protruding portion 221 (i.e. the first end of the limiting member) further has a limiting guiding surface 226 inclined with respect to the limiting surface 222, for guiding the limiting surface 222 to abut against the side positioning surface 31; the position limiting guide surface 226 is located on an end surface of the protruding portion 221 facing the side positioning surface 31, and the position limiting guide surface 226 is inclined from the top of the protruding portion 221 to the position limiting surface 222. In-process with battery package main part 1 installation on battery fixing base 3, spacing spigot surface 226 is used for leading spacing face 222 to with the mutual butt of side locating surface 31 to the condition of battery package main part 1 and the mutual collision of battery package fixing base 3 because of the counterpoint precision is inaccurate to have been avoided battery package main part 1. The inclination angle formed by the limiting guide surface 226 and the limiting surface 222 is not more than 45 degrees, so that the battery pack main body 1 and the battery fixing seat 3 can be smoothly transited to realize installation.

The embodiment of the present invention provides an embodiment, the limiting member 22 further includes a base 227 accommodated in the accommodating cavity 211, the protruding portion 221 is protruded relative to the base 227 and located at the middle portion of the base 227, the periphery of the protruding portion 221 can be abutted against the inner wall surface of the limiting hole 212 to obtain higher stability, or a gap of 0.5-5mm is reserved to obtain a certain adjustable margin, so as to reduce the jamming condition. When the stopper 22 is in the natural state, the surface of the base 227 abuts against the inner surface of the case 21 by the elastic mechanism 23, and after the battery pack 100 is fixed to the mounting fixture, the base 227 is pressed against the side mounting surface 11, and a gap is maintained between the base 227 and the inner wall surface of the case 21 close to the side positioning surface 31.

In the embodiment of the present invention, one end of the limiting member 22 close to the elastic mechanism 23 is provided with the above-mentioned recessed portion 224, and the limiting member 22 is further provided with a plurality of rib positions disposed in the recessed portion 224; the rib position comprises an annular rib 228 and a plurality of the strip ribs 225, and the annular rib 228 can be the same as the limiting ring 223 or the limiting groove. The annular rib 228 is internally provided with a plurality of blind holes 229, the radius of the blind holes 229 is gradually reduced from the center of the annular rib 228 to the outside, and the blind holes 229 are arranged to reduce the bad phenomenon in the forming process. The elastic mechanism 23 is inserted or sleeved in the annular rib 228. The two ends of each bar-shaped rib 225 are respectively connected with the annular rib 228 and the side wall of the recess 224, and the bar-shaped ribs 225 are arranged around the annular rib 228, so that the strength of the annular rib 228 and the strength of the limiting member 22 are improved, and the weight of the limiting member 22 is reduced. In addition, the recessed portion 224 and the rib of the present embodiment can also be understood as being disposed on the base 227 of the limiting member 22.

As shown in fig. 11, in the embodiment of the present invention, the limiting surface 222 is a plane, and an end surface (i.e. the mounting surface 2114) of the end of the housing 21 corresponding to the limiting surface 222 is also a plane, so that in the using process, the stress on the limiting member 22 and the housing 21 is relatively uniform, thereby improving the service life.

As shown in fig. 10, in the embodiment of the present invention, different from the previous embodiment, the limiting surface 222 has a plurality of receiving grooves 214; the holding groove 214 is used for storing lubricating oil so as to reduce the friction coefficient between the battery pack 100 and the battery pack fixing seat 3, so as to install the battery pack 100 in the battery pack fixing seat 3, and reduce the abrasion of the positioning assembly and the battery pack fixing seat 3. The lowest point at the opening of the receiving groove 214 is higher than the lowest point at the groove bottom of the receiving groove 214, thereby effectively retaining the lubricating oil. The side wall of the receiving groove 214 on the limiting surface 222 may be a cylindrical surface or a curved surface with an inner diameter gradually decreasing from the outer end to the bottom end, so as to better retain the lubricating oil. In this embodiment, part or all of the receiving groove 214 is circular, and in this embodiment or other embodiments, the receiving groove 214 may also be a waist-shaped groove.

As shown in fig. 6 and 11, in the embodiment of the present invention, the housing 21 includes an inner shell 215 and an outer shell 216. The inner housing 215 is detachably attached to the side mounting surface 11 and has an inner cavity 217 with one end opened, and the inner cavity 217 is opened toward the outer housing 216. The outer shell 216 itself also encloses a cavity for positioning the inner shell 215. The outer shell 216 is detachably connected with the inner shell 215 and covers the opening of the inner cavity 217, and the periphery of the outer shell 216 is arranged around the side surface of the inner shell 215. The inner housing 215 is used to be fixedly mounted to the side mounting surface 11, and the above-mentioned limiting hole 212 is provided in the outer housing 216. By providing the housing 21 as the inner shell 215 and the outer shell 216 detachably connected, the mounting process and the mounting are facilitated.

In the embodiment of the present invention, the outer shell 216 and the inner shell 215 are fixed in a clamping manner, and have high assembling efficiency. The outer shell 216 and the inner shell 215 may be snapped together on one or more sides of the housing 21. The outer shell 216 and the inner shell 215 are preferably secured on a set of oppositely disposed sides of the housing 21.

The embodiment of the utility model provides an in, have joint hole 219 on the lateral wall of outer shell 216, be provided with joint piece 2110 on the outer wall of inner shell 215, realize the fixed of outer shell 216 and inner shell 215 behind joint hole 219 the card piece 2110 card income. The catching piece 2110 is a structure that is protrudingly provided with respect to the sidewall of the inner case 215. The snap-in hole 219 is a through hole or blind hole 229. The clamping block 2110 is provided with a guide surface 2111, a transition surface 2112 and a clamping surface 2113 which are sequentially connected, one end of the guide surface 2111 is connected with the side wall of the inner shell 215, the transition surface 2112 is parallel to the side wall of the inner shell 215, and the clamping surface 2113 is perpendicular to and connected with the side wall of the inner shell 215; in the process of installing the outer shell 216 and the inner shell 215, the guide surface 2111 is in contact with the outer shell 216 and guides the outer shell 216, stable assembly of the outer shell 216 and the transition surface 2112 is in contact with the outer shell 216, stress of the clamping block 2110 on the outer shell 216 is reduced, stable assembly is achieved, after the clamping block 2110 is clamped into the clamping hole 219, the clamping surface 2113 and the inner wall of the clamping hole 219 are limited mutually, and clamping of the inner shell 215 and the outer shell 216 is achieved. The clamping holes 219 correspond to the clamping blocks 2110 one to one, and one or two groups of clamping holes 219 and clamping blocks 2110 can be arranged on two opposite sides of the shell 21 respectively to improve the reliability of the shell 21. In addition, the housing 21 has long sides and short sides, and the engaging holes 219 or the engaging blocks 2110 are formed on the side plates corresponding to the short sides of the housing 216.

In the embodiment of the present invention, the difference from the previous embodiment is that the clamping block 2110 is disposed on the inner wall surface of the outer shell 216, and the clamping hole 219 is disposed on the inner wall of the inner shell 215. The structure of the engaging block 2110 and the relationship between the engaging block 2110 and the engaging hole 219 refer to the foregoing embodiments, and are not described herein again.

In the embodiment of the present invention, the communication between the side of the outer shell 216 and the side of the inner shell 215 is provided with the water drainage hole 218, so as to avoid the accumulated water generated in the accommodating cavity 211. The drain holes 218 may be provided on the sides of the outer and

inner housings

216 and 215 at the lower end.

Please refer to fig. 11-15 for understanding. In the embodiment of the present invention, the housing 216 has a mounting surface 2114, and the mounting surface 2114 is provided with the above-mentioned limiting hole 212.

In the embodiment shown in fig. 11 and 12, the mounting surface 2114 is a plane, and the corresponding area of the side positioning surface 31 is a plane, so that the force applied to the housing 21 is relatively uniform.

As shown in fig. 13-15, an end surface, i.e., the mounting surface 2114, of the end of the housing 21 corresponding to the limiting surface 222 is provided with an accommodating groove 214 facing the accommodating cavity 211 for storing lubricating oil, so as to reduce the friction coefficient between the battery pack 100 and the battery pack holder 3, facilitate mounting the battery pack 100 in the battery pack 3 holder, and reduce the wear of the positioning assembly and the battery pack holder 3. The receiving groove 214 is arranged around the stopper hole 212 so that the surface of the housing 21 is lubricated as much as possible. The side wall of the receiving groove 214 on the outer shell 216 may be a smooth transition curved surface, and the side surface of the receiving groove 214 may be a horn-shaped structure to improve the lubricating effect and the oil storage effect; in addition, the shape of the receiving groove 214 on the mounting surface 2114 may also be the same as the shape of the receiving groove 214 on the retaining surface 222. The position-limiting member 22 has a position-avoiding groove for providing a position for the receiving groove 214 of the housing 216, and the position-avoiding groove can be disposed at a corner of the base 227. The depth of the accommodating groove 214 can be properly deepened by the arrangement of the yielding groove, so that the oil storage effect is improved, and the overall structure of the positioning assembly 2 is more compact and smaller. It should be noted that, in the embodiments, the receiving groove 214 is provided on the mounting surface 2114, and in other embodiments, the receiving groove 214 may be provided on both the mounting surface 2114 and the limiting surface 222, or the receiving groove 214 may be provided only on the limiting surface 222.

As shown in fig. 13 to 15, in the embodiment of the present invention, the end surface of the end of the housing 21 corresponding to the limiting surface 222 has a housing mounting surface 2115, and specifically, the housing mounting surface 2115 is disposed on the mounting surface 2114. The housing attachment surface 2115 is adapted to abut against the side positioning surface 31 to stably connect the two. The receiving slot 214 in the housing 216 may be disposed in the housing mounting surface 2115. The mounting surface 2114 has a housing recess 2116 recessed toward the accommodation chamber 211 at a position avoiding the housing mounting surface 2115. The housing recess 2116 may also be understood as being disposed between two adjacent housing mounting surfaces 2115, or as being disposed between two adjacent receiving slots 214. The rigidity of the housing 216 is increased by providing the housing groove 2116, and the molding is improved.

In one embodiment, four housing mounting surfaces 2115 are provided at corners near the retainer hole 212, and a housing notch 2116 is provided between two adjacent housing mounting surfaces 2115, both sides of the housing notch 2116 extending to the edges of the retainer hole 212 and the housing 216, respectively.

As shown in fig. 11, 13, and 14, in the embodiment of the present invention, the shell 216 disposed on the casing 21 has a shell guide surface 2117, and the shell guide surface 2117 gradually extends from the end of the casing 21 toward the limiting surface 222, which can also be understood as: the housing guide surface 2117 gradually extends from the end of the housing 21 toward the mounting surface 2114 and gradually moves away from the side mounting surface 11. When the battery pack main body 1 is mounted on the battery holder 3, the side positioning surface 31 and the housing guide surface 2117 contact and press each other, and the housing guide surface 2117 serves to guide the housing 216 to a position corresponding to the side positioning surface 31 and to guide the stopper guide surface 226 to the side positioning surface 31. The inclination angle of the housing guide surface 2117 relative to the limiting surface 222 is smaller than 45 degrees, so that the smooth installation of the battery pack 100 and the battery holder 3 is improved.

As shown in fig. 14-15, in the embodiment of the present invention, the end of the housing 216 away from the limiting surface 222 has notches 2118, and each notch 2118 is distributed at any one or more of the four corners of the housing 216; the rigidity of the housing 216 is improved by providing notches 2118 at the corners of the housing 216, and punch stacking and cracking can be prevented in the molding process.

As shown in fig. 11, 13 and 14, in the embodiment of the present invention, the periphery of the housing guide surface 2117 is respectively connected to three sides of the housing 216 and the mounting surface 2114 of the housing 216.

As shown in fig. 12 and 15, in the embodiment of the present invention, the housing 216 has a first main plate 2119 and a first enclosing plate 2120, and the periphery of the first enclosing plate 2120 is enclosed. One end of the first enclosing plate 2120 is fixed with the periphery of the first main plate 2119, so that the two enclose to form a structure which is square on the whole. A relatively small arc-shaped or plane-shaped transition surface 2112 is arranged at the joint of one side of the first enclosing plate 2120 and the first main plate 2119, so that mutual guiding with the side positioning surface 31 can be generated in the process of installing the battery pack 100 and the battery fixing seat 3, and the clamping condition is avoided. In addition, in this embodiment, the mounting surface 2114, the retaining hole 212, and the housing mounting surface 2115 are provided on the first main plate 2119, and the notch 2118 is located on an end of the first shroud 2120 away from the first main plate 2119.

Please refer to fig. 16-25 for understanding. In the embodiment of the present invention, the middle portion of the inner shell 215 has the above-mentioned limiting protrusion 213 recessed toward the inner cavity 217, and the elastic mechanism 23 is inserted into or sleeved on the limiting protrusion 213; further, the limiting protrusion 213 may be convex hull-shaped or ring-shaped; the elastic mechanism 23 is accurately positioned and stably guided by arranging the limiting protrusion 213.

The embodiment of the utility model provides an in, have a plurality of bellied screw thread post 2121 towards inner chamber 217 on the inner shell 215, screw thread post 2121 center is for having the internal screw thread through-hole, and battery package main part 1 passes through fastener connection locating component 2, and the fastener is worn to establish screw thread post 2121 and threaded connection with it from one side of battery package main part 1. The threaded post 2121 is integrally formed with the remainder of the inner housing 215. The threaded column 2121 is arranged on the inner shell 215 towards the inner cavity 217 side to realize the connection between the positioning component 2 and the battery pack main body 1, so that the surface of the inner shell 215 can be directly attached to the side mounting surface 11, the stability and reliability of the connection between the positioning component 2 and the battery pack main body 1 are improved, and the structure compactness of the positioning component 2 is improved.

In the embodiment of the present invention, the surface of the inner shell 215 has a plurality of inner shell mounting surfaces 2122 for detachable connection with the side mounting surface 11; threaded post 2121 is disposed on inner housing mounting surface 2122. The inner case mounting surface 2122 is fitted to the side mounting surface 11, thereby stably connecting the positioning member 2 to the battery pack main body 1. An inner shell recess 2123 is provided in the inner shell 215 in a region away from the inner shell mounting surface 2122 so as to be recessed toward the inner cavity 217, thereby increasing the rigidity of the inner shell 215 and the shape of the inner shell 215 by providing the inner shell recess 2123. In this embodiment, the inner housing groove 2123 may be cross-shaped, four corners of the inner housing groove 2123 each correspond to one inner housing mounting surface 2122, and the limiting protrusion 213 is located at the center of the cross.

In the embodiment shown in fig. 22-23, the inner shell 215 has notches 2118 at one end adjacent to the retaining surface 222, each notch 2118 is located at a corner of the inner shell 215, and any one or more corners of the inner shell 215 may have a notch 2118. The notch 2118 in the upper end of the inner housing 215 is used to give way to the housing guide surface 2117, and accordingly, the thickness of the outer housing 216 at the housing guide surface 2117 is gradually reduced. Stamping stack and cracking can also be prevented in the molding process by providing notches 2118 at the corners of the inner shell 215.

In the embodiment shown in fig. 23-25, the inner housing 215 has a second main plate 2124 and a second shroud 2125. The second shroud 2125 is circumferentially enclosed. The second shroud 2125 is secured at a first end to an edge of the second main plate 2124 so that it encloses the interior chamber 217 as described above.

Individual positioning assemblies 2 may be focused on different functions, such as some positioning assemblies 2 may be focused on guiding functions and some positioning assemblies 2 may be focused on limiting functions. The positioning members 2 having different functions of the weight may have slightly different structures, and on the basis of the above description, the positioning members 2 having the weight guiding function and the weight limiting function are respectively described below, and for the convenience of distinction, the positioning member 2 defining the weight guiding function is the guiding and limiting device 2126 for the battery pack, and the other one is the limiting device for the battery pack 100.

The guide stopper 2126 for the battery pack will be described with reference to fig. 11 and 16 to 21.

The upper end of the battery pack guide stopper 2126 is higher than the side mounting surface 11, the height of the battery pack guide stopper from the side mounting surface 11 is larger than the projection length of the case guide surface 2117 on the case 21, and the upper end of the case guide surface 2117 is higher than the side mounting surface 11. The height of the mounting surface 11 higher than the side is more than 15mm in the embodiment, so that the guiding and positioning effects are improved. The side of the inner case 215 has a groove (not visible in fig. 16-21, as can be understood with reference to fig. 11) for abdicating the outer case guide surface 2117 so that the upper end of the battery pack guide stopper 2126 has a tapered shape.

The inner shell 215 has the inner shell mounting surface 2122 and the inclined transition surface 2128, the inner shell mounting surface 2122 is used for connecting the side mounting surface 11, and one end of the inner shell 215 corresponding to the outer shell guide surface 2117 is recessed toward the inner cavity 217 and connected to the inner shell mounting surface 2122 through the inclined transition surface 2128. The angled transition surface 2128 is angled in a direction opposite to the angled direction of the housing guide surface 2117. By providing the inclined transition surface 2128 to recess the upper end of the inner housing 215 in the direction of the side positioning surface 31, it is possible to give way to the relevant components on the battery pack body 1 and to enhance the deformation resistance of the inner housing 215.

The relative position relationship between the positioning component 2 and the battery pack main body 1 is different, so that the effects and functions of the positioning component are different. In the initial stage of installing the battery pack main body 1 in the battery holder 3, the guiding function is particularly important, and therefore, the battery pack guiding and limiting devices 2126 with the guiding function are respectively arranged at the two ends of the battery pack main body 1, so that the effect of stably fixing the battery pack main body 1 and the battery holder 3 is achieved.

In the embodiment shown in fig. 3, two battery pack guide stoppers 2126 are fixed to each side mounting surface 11 in the longitudinal direction, and the two battery pack guide stoppers 2126 are located at both ends of the side mounting surface 11; in other embodiments, as an alternative, one battery pack guide and limit device 2126 located in the middle is fixed to the side mounting surface 11 in the longitudinal direction, and as another alternative, a plurality of battery pack guide and limit devices 2126 located in the middle are fixed to the side mounting surface 11 in the longitudinal direction; as still another alternative, the positioning members 2 are disposed at both ends and in the middle of the side mounting surface 11, and all the positioning members 2 are battery pack guide stoppers 2126.

A stop device for the battery pack 100 is described below in connection with fig. 22-25.

In the position limiting device for the battery pack 100: the outer case 216 has a first main plate 2119 and a first shroud 2120, the inner case 215 has a second main plate 2124 and a second shroud 2125, one end of the first shroud 2120 is fixed to and surrounds an edge of the first main plate 2119, the first shroud 2120 is perpendicular to the first main plate 2119, the first main plate 2119 is a flat plate or a plate having a groove recessed toward the receiving cavity 211, and the stopper hole 212 is located on the first main plate 2119. The outer shell 216 is square on the whole, the inner shell 215 and the outer shell 216 cover to form the square shell 21, namely, the thickness around the limiting device for the battery pack 100 is uniform, so that the outer shell 216 can bear large strength, and further has stronger positioning performance.

In use, the upper end of the limiting device for the battery pack 100 is not higher than the side mounting surface 11. The positioning members 2 in the middle of the side positioning surfaces 31 may be provided as a stopper for the battery pack 100, or all the positioning members 2 may be provided as stoppers for the battery pack 100.

The guide stopper 2126 for the battery pack and the stopper for the battery pack 100 may be used in combination. In the embodiment shown in fig. 3, the two ends of the side positioning surface 31 are provided with guiding and limiting devices 2126 for the battery pack to improve the stability of the battery pack 100 during the installation process, and the middle of the side positioning surface 31 is provided with one or more limiting devices for the battery pack 100 to improve the fixing effect of the installed battery pack 100 and the battery holder 3.

The embodiment of the present invention further provides a position-limiting part, and the structure of the position-limiting part is the same as the position-limiting part 22 corresponding to the above-mentioned any embodiment.

The embodiment of the present invention provides a first end of the limiting member 22 (i.e. the end abutting against the side positioning surface 31) has a limiting surface 222, and the limiting surface 222 is provided with a holding groove 214 for storing a lubricating medium. The structure of the receiving groove 214 may be the same as that of the receiving groove 214 in any of the above embodiments, and the description thereof is omitted. The holding groove 214 is used for storing lubricating oil so as to reduce the friction coefficient between the battery pack 100 and the battery pack fixing seat 3, so as to install the battery pack 100 in the battery pack fixing seat 3, and reduce the abrasion of the positioning assembly and the battery pack fixing seat 3.

The embodiment of the utility model provides a still provide a battery package assembly 1000, this battery package assembly 1000 directly adopts locating part 22 in aforementioned two kinds of embodiments to realize direction and spacing between battery package main part 1 and the battery fixing base 3, in other words, locating component can directly realize through locating part 22. During assembly, the limiting member 22 is firstly fixed on the side mounting surface 11 of the battery pack main body 1 to form the battery pack 100, the battery pack 100 gradually moves upwards from the lower part, the limiting member 22 gradually contacts with the side positioning surface in the process, the limiting guide surface 226 and the side positioning surface 31 realize the effect of mutual guiding, and the limiting surface 222 and the side positioning surface 31 realize the effect of mutual abutting.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are within the scope of the present invention.

Claims

1. The utility model provides a battery is direction stop device for package which characterized in that includes:

the shell is provided with an accommodating cavity and a limiting hole;

2. The guide and position-limiting device for battery packs according to claim 1,

the elastic mechanism comprises an elastic sheet, and two ends of the elastic sheet are respectively abutted against the limiting piece and the shell; the elastic mechanism is provided with one elastic sheet, or the elastic mechanism is provided with a plurality of elastic sheets which are distributed at intervals;

or,

3. The guide and position-limiting device for battery packs according to claim 1,

a limiting bulge used for limiting the radial direction of the elastic mechanism is fixed in the shell, and the elastic mechanism is sleeved or inserted in the limiting bulge;

4. The guiding and limiting device for battery pack according to claim 1, wherein the surface of the limiting member facing the elastic mechanism has a limiting matching portion, and the limiting matching portion is one or more of a limiting protrusion, a limiting ring or a limiting groove.

5. The guiding and limiting device for a battery pack according to claim 4, wherein the surface of the limiting member having the limiting matching portion is provided with a plurality of concave portions, and a rib is provided between the plurality of concave portions.

6. The guiding and limiting device for the battery pack as claimed in claim 5, wherein the limiting and matching part is an annular rib, the elastic mechanism is inserted into or sleeved on the annular rib, and a plurality of blind holes are arranged in the annular rib.

7. The guide and stop device for battery pack according to claim 6, wherein the radius of said blind hole is gradually reduced from the center of said annular rib.

8. The guide and position-limiting device for battery packs according to claim 6, wherein the rib is connected to the annular rib and the side wall of the recess.

9. The guiding and limiting device for a battery pack according to claim 1, wherein the shape of the limiting hole is matched with that of the boss, and a gap of 0.5 to 5mm is reserved between the periphery of the boss and the inner wall surface of the limiting hole.

10. The guide-limiting device for battery packs according to claim 1, wherein the limiting hole is provided in a mounting surface of the case, and the case further has a case guide surface which extends from one end of the case gradually toward the mounting surface and is inclined with respect to the mounting surface.

11. The guiding and limiting device for a battery pack according to claim 1, wherein the protruding end of the protruding portion of the limiting member has a limiting surface, and the protruding portion further has a limiting guide surface inclined from the top of the protruding portion toward the limiting surface.

12. The battery pack guide and stop device of claim 1, wherein the housing comprises:

an inner shell having an inner cavity with one end open;

13. The guide and stop device for a battery pack according to claim 12,

the side wall of the outer shell is provided with a clamping hole, the outer side wall of the inner shell is provided with a clamping block, the clamping block is sequentially connected with a guide surface, a transition surface and a clamping surface, the first end of the guide surface is connected with the side wall of the inner shell, the transition surface is parallel to the side wall of the inner shell, and the clamping surface is perpendicular to and connected with the side wall of the inner shell;

14. The guide and stop device for a battery pack according to claim 12,

the periphery of the shell guide surface is respectively connected with three side surfaces of the shell and the end surface of the shell;

and/or the inclination angle of the shell guide surface relative to the limiting surface at the end part of the boss is less than 45 degrees;

15. A battery pack comprising a battery pack body having a side mounting surface on which a battery pack guide and limit device is mounted, and a battery pack guide and limit device as claimed in any of claims 1 to 14.

16. The battery pack according to claim 15, wherein the height of the battery pack guide and stopper above the upper mounting surface of the battery pack main body is greater than the length of the projection of the case guide surface on the case.

17. A battery pack assembly, comprising a battery holder and the guiding and limiting device for a battery pack as claimed in claim 15 or 16, wherein the end of the housing opposite to the limiting hole is detachably connected with the battery pack; when the battery pack is installed on the battery fixing seat, the battery fixing seat is guided to the limiting part through a shell guide surface on the shell and then is mutually abutted to the limiting part.

18. An electric vehicle comprising the battery pack assembly of claim 17.