CN114056073A

CN114056073A - Battery box bracket, battery box and electric automobile

Info

Publication number: CN114056073A
Application number: CN202010774081.6A
Authority: CN
Inventors: 张建平; 仇丹梁; 黎明
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2022-02-18
Anticipated expiration: 2040-08-04
Also published as: CN114056073B

Abstract

The invention discloses a battery box bracket, a battery box and an electric automobile, which are used for bearing and locking the battery box, wherein the battery box bracket comprises: the battery box comprises a bracket body and a back plate, wherein the bracket body is provided with a channel for the battery box to enter and exit the bracket body along the Y direction; the one end of bracket body is located to the backplate for on being connected to the bracket body to electric automobile, be equipped with at least one along X to the locked groove that extends on the backplate, the locked groove is used for installing the lock axle of battery box. The bracket body is provided with the inlet and outlet channel of the industrial battery box, and the bracket body is connected to the electric automobile by the back plate; the lock shaft of the battery box can be installed by utilizing the lock groove, and the locking and fixing of the battery box are simply, efficiently and reliably realized. Set up the locked groove to along X to extending, can increase the area of locked groove effectively, will lock the axle and install to the locked groove in to can increase the area of contact between locked groove and the lock axle, improve the homogeneity of atress between locked groove and the lock axle, avoid the atress to concentrate, improve the reliability of battery box installation.

Description

Battery box bracket, battery box and electric automobile

Technical Field

The invention relates to the field of electric automobiles, in particular to a battery box bracket, a battery box and an electric automobile.

Background

The existing battery box mounting modes of the electric automobile are generally divided into a fixed mode and a replaceable mode. In the case of an electric vehicle with a replaceable battery pack, the battery pack is generally mounted on the electric vehicle by a bracket. In order to ensure the stability of the battery box, the battery box is usually fixed on the bracket by a locking device, and the fixation in three directions of X \ Y \ Z can be basically ensured (X: refers to the direction pointing to the head of the automobile in the horizontal plane, Y: refers to the direction vertical to X in the horizontal plane, and Z: refers to the height direction vertical to the horizontal plane). Specifically, a plurality of lock bases are usually disposed on the bracket, and the lock bases are provided with lock holes. The battery box is corresponding to be provided with a plurality of lock shafts on two opposite sides, one end of each lock shaft is connected to the battery box, and the other end of each lock shaft is inserted into the lock hole of the lock base, so that the battery box is installed on the bracket.

Because the battery box is installed to the bracket through lock base and lock axle, in order to guarantee the installation accuracy of battery box relative electric automobile, the corresponding installation accuracy that needs improve the lock base, because the quantity of single electric automobile lock base is more again, consequently, is difficult to guarantee the installation accuracy of a plurality of lock bases, and is corresponding, just also is unfavorable for guaranteeing the relative installation accuracy of the lock axle of inserting the lock base yet to be difficult to guarantee the installation accuracy of battery box relative electric automobile.

In addition, because the lock shaft is inserted into the lock hole of the lock base, and the lock shaft is generally perpendicular to the lock base, the contact area between the lock shaft and the lock base is small, and the weight of the battery box is heavy, so that the stress concentration ratio between the lock shaft and the lock base is large, the stress of the battery box is concentrated, and the stress state is poor.

Disclosure of Invention

The invention aims to overcome the defect that the installation accuracy of a battery box is difficult to guarantee in the prior art, and provides a battery box bracket, the battery box and an electric automobile.

The invention solves the technical problems through the following technical scheme:

a battery compartment carrier for carrying and locking a battery compartment, the battery compartment carrier comprising:

the bracket body is provided with a channel for the battery box to enter and exit the bracket body along the Y direction;

the backboard is arranged at one end of the bracket body and used for connecting the bracket body to the electric automobile, at least one locking groove extending along the X direction is formed in the backboard, and the locking groove is used for installing a locking shaft of the battery box.

In the scheme, a channel for the entry and exit of the battery box is arranged on the bracket body, and the bracket body is connected to the electric automobile by using the back plate; the back plate is provided with the locking groove extending along the X direction, so that the locking groove can be used for installing the locking shaft of the battery box, and the locking and fixing of the battery box are simply, efficiently and reliably realized. Set up the locked groove to along X to extending, can increase the area of locked groove effectively, will lock the axle and install to the locked groove in to can increase the area of contact between locked groove and the lock axle, improve the homogeneity of atress between locked groove and the lock axle, avoid the atress to concentrate, improve the reliability of battery box bracket.

Preferably, the lock groove includes an opening and an accommodating cavity connected with each other, the lock shaft enters the accommodating cavity from the opening, the accommodating cavity is used for locking and fixing the lock shaft, and the bottom of the accommodating cavity is lower than the lower side surface of the opening.

In this scheme, through designing the locked groove to include the opening for the lock axle can pass in and out the opening more easily, through designing the locked groove still including holding the chamber, and the utilization holds the fixed lock axle in chamber, makes the lock axle can more stable the installation in holding the chamber. The bottom that holds the chamber is less than open-ended downside for the lock shaft can slide to the bottom that holds the chamber under the effect of gravity from the opening, can improve the stability and the reliability of battery box.

Preferably, the back plate is provided with at least two locking grooves at intervals along the vertical direction.

In this aspect, the stability and reliability of the battery box can be further improved.

Preferably, the back plate is further provided with an electrical connector, the number of the locking grooves is at least two, and the locking grooves are symmetrically arranged on two sides of the electrical connector along the X direction.

In this scheme, through setting up the locked groove in electric connector's both sides, can reduce rocking of battery box, can improve electric connector connection's stability and reliability.

Preferably, the back plate is provided with an abutting part, the abutting part protrudes out of the side face of the back plate, and the abutting part is used for abutting against the rear wall of the battery box.

In this scheme, utilize outstanding portion of supporting to support the battery box that supports, can prevent the lock axle of battery box and rotate for the locked groove, improve the stability and the reliability of battery box.

Preferably, the surface of the abutting part contacting with the battery box is a plane.

In this scheme, can increase the battery box effectively and lean on the area of contact of portion, improve the battery box and lean on the homogeneity of portion atress, avoid the atress to concentrate.

Preferably, the bracket body further comprises a bottom cross beam for supporting the battery box.

In this scheme, utilize the bottom crossbeam to hold the battery box, can further improve the stability and the reliability of battery box.

Preferably, the battery box bracket further comprises a latch bolt assembly for preventing the lock shaft from moving.

In this scheme, utilize spring bolt subassembly to prevent the lock axle to remove, avoid the lock axle to shift out the locked groove, can improve the stability of lock axle to can improve the reliability and the stability of battery box.

Preferably, the bolt assembly is disposed at both ends of the locking groove.

In this scheme, the spring bolt subassembly acts on the lock axle at the both ends of locked groove, can further improve the stability of lock axle, also can improve the reliability and the stability of battery box.

Preferably, an electrical connection socket is further arranged on the back plate, the lock grooves are formed in two sides of the electrical connection socket, and when the lock shaft slides into the lock grooves, the electrical connection plug of the battery box is inserted into the electrical connection socket.

In this scheme, when the lock shaft slided in when the locked groove, the electric connection plug of battery box inserted the electric connection socket to can accomplish the installation of battery box and be connected of battery box and electric automobile simultaneously, can improve the efficiency of battery box installation.

Through setting up the locked groove in electric connector's both sides, can reduce rocking of battery box, can improve electric connector connection's stability and reliability.

The utility model provides a battery box, the battery box includes lock axle and case body, the locked groove sets up the side of case body, the lock axle is followed X and is extended, the lock axle is used for the card to go into as above the locked groove of battery box bracket.

In this scheme, through setting up along the lock axle of X to extension for the lock axle can be installed to the locked groove in, also can increase the area of contact between locked groove and the lock axle, improves the homogeneity of atress between locked groove and the lock axle, avoids the atress to concentrate, improves the reliability of battery box installation.

An electric automobile comprises the battery box bracket and the battery box.

In this scheme, can improve the stability of battery box in the battery box bracket, restrict the removal of battery box in the battery box bracket to improve electric automobile's reliability and security.

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

The positive progress effects of the invention are as follows:

the bracket body is provided with the inlet and outlet channel of the industrial battery box, and the bracket body is connected to the electric automobile by the back plate; the back plate is provided with the locking groove extending along the X direction, so that the locking groove can be used for installing the locking shaft of the battery box, and the locking and fixing of the battery box are simply, efficiently and reliably realized. Set up the locked groove to along X to extending, can increase the area of locked groove effectively, will lock the axle and install to the locked groove in to can increase the area of contact between locked groove and the lock axle, improve the homogeneity of atress between locked groove and the lock axle, avoid the atress to concentrate, improve the reliability of battery box installation.

Drawings

Fig. 1 is a schematic structural view of a battery box bracket after the battery box is installed in the battery box bracket according to the preferred embodiment of the invention.

Fig. 2 is a schematic structural view of the battery box bracket in fig. 1.

Fig. 3 is a partially enlarged structural view of the battery box bracket of fig. 2.

Fig. 4 is a schematic top view of the battery box bracket of fig. 2.

Fig. 5 is a schematic structural view of a cross section of the battery box bracket in fig. 2.

Fig. 6 is a schematic structural view of the battery box in fig. 1.

FIG. 7 is a schematic structural view of section A-A in FIG. 1.

Description of reference numerals:

battery box bracket 100

Bracket body 11

Back plate 12

Locking groove 121

Opening 122

Accommodating cavity 123

Abutting part 124

Transition bevel 125

Electrical connector 13

Deadbolt assembly 14

Fastener 141

Driving end 142

First recess 143

Second recessed portion 144

Protrusion 145

First pivot point 146

Second pivot point 147

Position-limiting part 148

Connecting piece 149

Electrical connection socket 15

Battery box 200

Lock shaft 21

Electrical connection plug 22

Box body 23

Detailed Description

The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 to 7, the present embodiment may be an electric vehicle, and the electric vehicle includes a battery box bracket 100 and a battery box 200 as follows. The present embodiment can improve the stability of the battery box 200 in the battery box bracket 100, and restrict the movement of the battery box 200 in the battery box bracket 100, thereby improving the reliability and safety of the electric vehicle.

As shown in fig. 1 to 6, the present embodiment is a battery box bracket 100 for carrying and locking a battery box 200, the battery box bracket 100 including: a bracket body 11 and a back plate 12, wherein the bracket body 11 is provided with a channel for the battery box 200 to enter and exit the bracket body 11 along the Y direction; the back plate 12 is disposed at one end of the bracket body 11, and is used for connecting the bracket body 11 to an electric vehicle, at least one locking groove 121 extending along the X direction is disposed on the back plate 12, and the locking groove 121 is used for mounting a locking shaft 21 of the battery box 200. A channel for the battery box 200 to enter and exit is arranged on the bracket body 11, and the bracket body 11 is connected to the electric automobile by using a back plate 12; the back plate 12 is provided with the lock groove 121 extending in the X direction, so that the lock shaft 21 of the battery box 200 can be attached by the lock groove 121, and the battery box 200 can be locked and fixed simply, efficiently, and reliably. Set up the locked groove 121 to extend to along X, can increase the area of locked groove 121 effectively, install lock axle 21 to the locked groove 121 in to can increase the area of contact between locked groove 121 and the lock axle 21, improve the homogeneity of atress between locked groove 121 and the lock axle 21, avoid the atress to concentrate, improve battery box bracket 100's reliability.

As shown in fig. 5, the locking slot 121 includes an opening 122 and a receiving cavity 123 connected with each other, the locking shaft 21 enters the receiving cavity 123 from the opening 122, the receiving cavity 123 is used for locking and fixing the locking shaft 21, and the bottom of the receiving cavity 123 is lower than the lower side of the opening 122. The lock shaft 21 can be more easily moved into and out of the opening 122 by designing the lock groove 121 to include the opening 122, and the lock shaft 21 can be more stably mounted in the accommodating chamber 123 by designing the lock groove 121 to further include the accommodating chamber 123 and fixing the lock shaft 21 with the accommodating chamber 123. The bottom of the accommodating cavity 123 is lower than the lower side surface of the opening 122, so that the lock shaft 21 can slide to the bottom of the accommodating cavity 123 from the opening 122 under the action of gravity, and the stability and reliability of the battery box 200 can be improved.

As an embodiment, the opening 122 may be a plane, and the inner side surface of the bottom of the receiving cavity 123 is matched with the outer peripheral surface of the lock shaft 21. The lock shaft 21 may be a cylinder, and accordingly, the cross section of the bottom may be an arc surface, and the arc surface is adapted to the outer peripheral surface of the cylinder. A transition slope 125 may be further disposed between the plane of the opening 122 and the arc surface of the bottom, and the transition slope 125 enables the lock shaft 21 to smoothly slide from the plane of the opening 122 to the bottom of the accommodating cavity 123. The transition slope 125 may be an inclined plane, and the included angle between the inclined plane and the vertical plane may be 45 ° or 60 °.

As shown in fig. 2 and 5, the back plate 12 is provided with at least two locking slots 121 at intervals along the vertical direction. The at least two locking grooves 121 can further improve the stability and reliability of the battery box 200. In other embodiments, the number of the locking grooves 121 may be 1.

As shown in fig. 2, the back plate 12 is further provided with at least two electrical connectors 13, and the locking slots 121 are symmetrically arranged on two sides of the electrical connectors 13 along the X direction. By providing the locking grooves 121 on both sides of the electrical connector 13, the shaking of the battery box 200 can be reduced, and the stability and reliability of the connection of the electrical connector 13 can be improved.

As shown in fig. 2 to 5, the back plate 12 has an abutting portion 124, the abutting portion 124 protrudes from the side surface of the back plate 12, and the abutting portion 124 is used for abutting against the rear wall of the battery box 200. The protruding abutting portion 124 abuts against the battery case 200, and the lock shaft 21 of the battery case 200 is prevented from rotating relative to the lock groove 121, thereby improving the stability and reliability of the battery case 200.

In fig. 5, the surface of the abutting portion 124 that contacts the battery case 200 is a flat surface. The contact area between the battery box 200 and the abutting part 124 can be effectively increased, the stress uniformity between the battery box 200 and the abutting part 124 is improved, and the stress concentration is avoided.

In other embodiments, the bracket body 11 may further include a bottom cross member for supporting the battery box 200. The battery box 200 is supported by the bottom cross beam, so that the stability and reliability of the battery box 200 can be further improved. The bottom cross beam can be further provided with a roller sleeve, the roller sleeve can rotate, the battery box 200 is arranged on the upper side face of the roller sleeve, when the battery box 200 enters the bracket body 11, the ball sleeve rotates under the driving of the battery box 200, and the friction force of the battery box 200 sliding into the bracket body 11 can be reduced. As an embodiment, the back panel 12 may also be connected to a bottom rail, the back panel 12 being disposed at one end of the bottom rail.

As shown in fig. 3 and 4, the battery box bracket 100 further includes a latch bolt assembly 14, and the latch bolt assembly 14 is used for preventing the lock shaft 21 from moving. The latch bolt assembly 14 is used for preventing the lock shaft 21 from moving, so that the lock shaft 21 is prevented from moving out of the lock groove 121, the stability of the lock shaft 21 can be improved, and the reliability and the stability of the battery box 200 can be improved. In a preferred embodiment, latch bolt assembly 14 is disposed at both ends of lock slot 121. The latch bolt assembly 14 acts on the lock shaft 21 at both ends of the lock groove 121, so that the stability of the lock shaft 21 can be further improved, and the reliability and stability of the battery box 200 can also be improved. As an embodiment, the latch bolt assembly 14 can lock the lock shaft 21 in the lock slot 121, thereby preventing the lock 21 from moving out of the lock slot 121. When lock shaft 21 needs to be moved out of lock slot 121, latch bolt assembly 14 can be moved away from lock shaft 21 so that lock shaft 21 can be moved out of lock slot 121.

As shown in fig. 7, the battery box 200 is shown in a state where the lock shaft 21 is located in the receiving cavity 123 of the lock groove 121, and the latch bolt assembly 14 prevents the lock shaft 21 from moving. The latch bolt assembly 14 in fig. 7 includes a catch member 141 and a connecting member 149. The locking member 141 is pivotally connected to the bracket 100 of the battery box 200 at the first pivot point 146, the first end of the connecting member 149 is pivotally connected to one end of the locking member 141, the second end of the connecting member 149 extends toward the bottom surface of the bracket 100 (downward), the connecting member 149 drives the locking member 141 to rotate clockwise around the first pivot point 146 under the action of external force to unlock the battery box 200, and the connecting member 149 drives the locking member 141 to rotate counterclockwise around the pivot point opposite to the clockwise direction under the action of no external force to prevent the locking shaft 21 of the battery box 200 from leaving the locking groove 121.

The catch member 141 in fig. 7 has a first pivot point 146 where the catch member 141 is connected to the back panel 12 and a second pivot point 147 where the catch member 141 is connected to the link member 149. The first pivot point 146 is located to the right of the second pivot point 147. When battery case 200 is locked, first pivot point 146 is higher than second pivot point 147.

The locking piece 141 in fig. 7 has a first recess 143, a protrusion 145 and a second recess 144. The first recess 143 is proximate the first pivot point 146, the second recess 144 is proximate the second pivot point 147, and the protrusion 145 is formed between the first recess 143 and the second recess 144. When the battery box 200 is disassembled, the locking piece 141 rotates clockwise, the lock shaft 21 is taken out from the lock groove 121, and the first recess 143 is used for avoiding the lock shaft 21, so that the lock shaft 21 of the battery box 200 is separated from the lock groove 121 more smoothly. When the battery case 200 is mounted, the locking member 141 is rotated counterclockwise to the locking position shown in fig. 7, in which the lock shaft 21 is positioned in the lock groove 121, and the second recess 144 is positioned above the lock groove 121 to form a space for accommodating the lock shaft 21. Alternatively, the second recess 144 may be omitted if the accommodation space of the locking groove 121 itself is sufficient. The protrusion 145 is located between the first recess 143 and the second recess 144, and is used to prevent the lock shaft 21 from moving leftward beyond the lock groove 121 when the locking member 141 moves to the unlocking position, and prevent the lock shaft 21 from coming out of the lock groove 121 toward the right above the lock groove 121 when the locking member 141 moves to the locking position.

As shown in fig. 2, 4 and 6, the back plate 12 is further provided with an electrical connection socket 15, both sides of the electrical connection socket 15 are provided with locking slots 121, and when the locking shaft 21 slides into the locking slots 121, the electrical connection plug 22 of the battery box 200 is inserted into the electrical connection socket 15. When the locking shaft 21 slides into the locking groove 121, the electrical connection plug 22 of the battery box 200 is inserted into the electrical connection socket 15, so that the battery box 200 and the battery box 200 can be simultaneously mounted and connected to the electric vehicle, and the efficiency of mounting the battery box 200 can be improved. By providing the locking grooves 121 on both sides of the electrical connector 13, the shaking of the battery box 200 can be reduced, and the stability and reliability of the connection of the electrical connector 13 can be improved.

As shown in fig. 6, the battery box 200 of the present embodiment includes a lock shaft 21 and a box body 23, the lock groove 121 is disposed on a side surface of the box body 23, the lock shaft 21 extends along the X direction, and the lock shaft 21 is used for being snapped into the lock groove 121 of the battery box bracket 100. Through setting up along X to the lock axle 21 that extends for in lock axle 21 can install to locked groove 121, also can increase the area of contact between locked groove 121 and the lock axle 21, the homogeneity of atress between improvement locked groove 121 and the lock axle 21 avoids the atress to concentrate, improves the reliability of battery box 200 installation.

In order to reduce the friction force of the lock shaft 21 sliding into the lock groove 121, a ball bushing may be further sleeved on the outer circumference of the lock shaft 21, and the ball bushing may rotate relative to the lock shaft 21. The lock shaft 21 is mounted in the lock groove 121 through a ball bearing, so that friction force generated when the lock shaft 21 slides into the lock groove 121 can be reduced, and stability and reliability of the battery case 200 can be improved.

While specific embodiments of the invention have been described above, it will be appreciated 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 scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A battery compartment carrier for carrying and locking a battery compartment, the battery compartment carrier comprising:

2. The battery box bracket of claim 1, wherein the locking groove comprises an opening and a receiving cavity connected with the opening, the locking shaft enters the receiving cavity from the opening, the receiving cavity is used for locking and fixing the locking shaft, and the bottom of the receiving cavity is lower than the lower side surface of the opening.

3. The battery box bracket of claim 1, wherein said back plate is provided with at least two of said locking slots at a vertical interval.

4. The battery box bracket of claim 3, wherein the back plate is further provided with an electrical connector, the number of the locking grooves is at least two, and the locking grooves are symmetrically arranged on two sides of the electrical connector along the X direction.

5. The battery box bracket of claim 1, wherein the back plate has an abutting portion protruding from a side surface of the back plate, the abutting portion being adapted to abut against a rear wall of the battery box.

6. The battery box bracket according to claim 5, wherein a surface of the abutting portion that contacts the battery box is a flat surface.

7. The battery box bracket of claim 1, wherein the bracket body further comprises a bottom cross member for supporting the battery box.

8. The battery box bracket of claim 1, further comprising a latch bolt assembly for preventing movement of the lock shaft.

9. The battery box bracket of claim 8, wherein the latch bolt assembly is disposed at both ends of the locking slot.

10. A battery box bracket as set forth in claim 1, wherein said back plate is further provided with an electrical connection socket, said electrical connection socket being provided with said lock groove on both sides thereof, and an electrical connection plug of said battery box is inserted into said electrical connection socket when said lock shaft is slid into said lock groove.

11. A battery box, characterized in that, the battery box includes a lock shaft and a box body, the lock slot is arranged on the side of the box body, the lock shaft extends along the X direction, the lock shaft is used for clamping into the lock slot of the battery box bracket according to any one of claims 1-10.

12. An electric vehicle, characterized by comprising a battery box bracket according to any one of claims 1 to 10 and a battery box according to claim 11.