CN216761436U - Battery bracket, battery package, electric automobile - Google Patents

Abstract

The utility model discloses a battery bracket, a battery pack, an electric automobile, a locking method and an unlocking method. Wherein it includes of battery bracket: the bracket comprises a bracket body and a bracket body, wherein the bracket body is provided with a mounting guide rail for the battery pack to slide in and out of the bracket body along the Y direction; the first locking assembly is arranged on the bracket body and used for limiting the battery pack on the bracket body in the Y direction. The battery pack comprises a second locking assembly which is used for being matched with the first locking assembly in the battery bracket so as to lock and fix the battery pack on the battery bracket. The battery bracket can realize Y-direction limiting on the battery pack, and firmly locks the battery pack, so that the electric automobile can reliably work. Simultaneously, through utilizing first locking subassembly and second locking subassembly, it is comparatively convenient to realize the locking of battery package on battery bracket and unblock, uses the electric automobile that has above-mentioned battery bracket and battery package to trade the electricity fast.

Description

Battery bracket, battery package, electric automobile

Technical Field

The utility model relates to the field of battery replacement, in particular to a battery bracket, a battery pack and an electric automobile.

Background

In the prior art, the battery pack is arranged on the bracket, but the bracket only plays a role in supporting the battery pack and cannot play a role in firmly locking the battery pack in the Y direction, which can cause that the battery pack cannot be stably connected with an electric connector of a vehicle, and particularly, the battery pack is easy to separate from the vehicle under a bumpy condition, so that the normal use of the vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that a bracket in the prior art cannot firmly lock a battery pack, and provides the battery bracket, the battery pack and an electric automobile.

The utility model solves the technical problems through the following technical scheme:

a battery tray, comprising:

the bracket comprises a bracket body, a battery pack and a bracket body, wherein the bracket body is provided with a mounting guide rail for the battery pack to slide in and out of the bracket body along the Y direction;

the first locking assembly is arranged on the bracket body and used for limiting the battery pack on the bracket body in the Y direction.

In the scheme, when the battery pack needs to be installed on the bracket body, the battery pack can be close to the bracket body by using the installation guide rail, and the battery pack is locked by using the first locking component so as to realize Y-direction limiting; when needs pull down the battery package from the bracket body, then can unblock first locking subassembly earlier for the battery package can be followed the installation guide rail and kept away from the motion of bracket body, realizes the dismantlement of battery package, and dismouting operation is comparatively convenient.

Preferably, the first locking component comprises a pin shaft extending along the Y direction, and the battery pack slides along the pin shaft and is fixed on the pin shaft when approaching the bracket body along the Y direction.

In this scheme, when installing the battery package to battery bracket, the battery package can slide on the round pin axle to fix to the round pin epaxially, thereby realize battery package and battery bracket's locking. The whole locking process only needs to drive the battery pack to slide, and other operation actions are not needed, so that the locking mode is convenient.

Preferably, the pin shaft is provided with a clamping groove used for being connected with the battery pack in a clamping mode.

In this scheme, the battery package is through the mode of joint and the draw-in groove locking of round pin axle, and the process of consequently connecting is comparatively convenient, and the locking is comparatively reliable, and the structure is comparatively simple.

Preferably, the clamping groove is an annular groove formed in the outer peripheral surface of the pin shaft.

In this scheme, because the draw-in groove encircles the periphery setting of round pin axle, consequently can realize the joint in the circumference of round pin axle upper arbitrary position, the space that the battery package can make full use of draw-in groove moreover, through a plurality of buckles or similar structure and draw-in groove joint to improve the reliability of joint.

Preferably, the opening of the clamping groove is provided with a guide surface, so that the opening is in an outward expansion shape.

In this scheme, the joint structure on the battery package can utilize the spigot surface conveniently to pass in and out the draw-in groove to make the unblock and the locking of battery package comparatively convenient.

Preferably, the installation guide rail includes the fagging that extends along Y to the support cooperation for with the battery package, carry out Z to and X to spacing to the battery package, the fagging with the round pin axle is located same one side of bracket body.

In this scheme, the backup pad can wear to locate the support of battery package, therefore the battery package can be followed Y to sliding under the direction of backup pad, and the backup pad can carry out Z to and X to spacing to the battery package simultaneously. When the battery pack slides along the supporting plate to be close to a preset position, the battery pack can be connected with the pin shaft, and the battery pack is locked.

Preferably, the fagging includes step portion, step portion includes and keeps away from the first step portion and the second step portion that the bracket body set up along the Y to in proper order, the sectional area of second step portion is not more than the sectional area of first step portion, first step portion with the second step portion be configured to can with the battery package cooperation is in order to carry out X to and Z to spacing to the battery package.

In this scheme, when the battery package targets in place at the battery bracket installation, the support of battery package cooperatees with step portion, consequently only needs to step portion precision finishing, and the machining precision at the other positions of fagging can be lower to can reduce the cost of fagging. In the process of installing the battery pack to the battery bracket, the support of the battery pack sequentially passes through the second step part and the first step part, so the second step part is smaller than the first step part, otherwise the support plate cannot completely pass through the support.

Preferably, the step part further includes a chamfered part so that the step part smoothly penetrates into the holder of the battery pack.

In this scheme, when step portion penetrated the support of battery package, the lead angle portion played the guide effect to the penetration of step portion is convenient for.

Preferably, the bracing plate is provided with a guide convex rib extending along the Y direction on one side of the Z direction so as to enhance the strength and rigidity of the bracing plate.

In this scheme, protruding muscle can improve the rigidity and the intensity of fagging for the fagging can support heavier battery package, and protruding muscle also can play the guide effect to the support of battery package simultaneously, so that the dismouting of battery package.

A battery pack is characterized by comprising a second locking component, wherein the second locking component is used for being matched with the first locking component to lock and fix the battery pack on a battery bracket.

In this scheme, the battery package utilizes second locking subassembly and battery tray's first locking subassembly to cooperate, can realize the locking and the unblock of battery package on battery tray.

Preferably, the second locking component comprises a clamping part, and the clamping part is used for clamping with the pin shaft in the first locking component.

In this scheme, the battery package utilizes the block portion of second locking subassembly and first locking subassembly looks block, and the locking is comparatively convenient, and the locking reliability is high.

Preferably, the clamping part comprises a clamping part body and a locking block which can move between a locking position and an unlocking position relative to the clamping part body,

when the locking block is in the locking position, the locking block is partially positioned in the clamping groove of the pin shaft, and the second locking assembly and the first locking assembly are in a locking state;

when the locking block is located at the unlocking position, the locking block is withdrawn from the clamping groove, and the second locking assembly and the first locking assembly are located in an unlocking state.

In this scheme, the locking piece that is in the locking state partly is arranged in the draw-in groove of round pin axle, partly and this body coupling of block portion, consequently first locking subassembly and the relative locking of second locking subassembly to the realization is to the locking of battery package. After the locking piece withdraws from the draw-in groove, first locking subassembly and second locking subassembly can separate, and the battery package can be taken off from the battery bracket.

Preferably, the clamping portion further includes a shaft sleeve, a communication hole is formed in a side wall of the shaft sleeve, the locking block is arranged in the communication hole in a sliding fit manner, and the shaft sleeve is used for allowing the pin shaft to be inserted in a fit manner, so that the communication hole is aligned with the clamping groove.

In this scheme, when the round pin axle inserts axle sleeve to assigned position, the intercommunicating pore aligns with the draw-in groove, and the lock piece can be followed the intercommunicating pore and slided in the draw-in groove to realize the locking. When the unlocking is needed, the locking block is withdrawn from the clamping groove, so that the shaft sleeve is separated from the pin shaft.

Preferably, a sleeve is sleeved on the outer side of the shaft sleeve and can move between a first position and a second position, the sleeve is provided with a clamping groove part and a shielding part, and when the sleeve is located at the first position, the clamping groove part is aligned to the communication hole; when the sleeve is located at the second position, the shielding portion shields the opening of the communication hole.

In this scheme, when the sleeve is located during the first position, joint slot part and intercommunicating pore counterpoint, the locking piece partially enters into the joint slot part in, the locking piece can follow and withdraw from in the draw-in groove completely, and the locking piece can move the unblock position promptly. When the sleeve is located at the second position, the locking block is locked at the locking position under the blocking of the shielding part and cannot be withdrawn from the clamping groove, so that the first locking assembly and the second locking assembly are kept in a locking state. Therefore, the sleeve can play a role of a safety device of the second locking assembly, and the battery pack is locked reliably.

Preferably, the joint groove part is provided with a guide inclined plane matched with the locking block at the joint part with the shielding part, so that when the sleeve moves from the first position to the second position, the guide inclined plane pushes the locking block to move towards the locking position.

In this scheme, when needs are with the battery package locking, through removing the sleeve from primary importance to the second place, the direction inclined plane can promote the locking piece and remove to the locking position from the unblock position, is about to the locking piece and pushes away the draw-in groove in, consequently just can realize the locking operation through the drive sleeve.

Preferably, the engaging portion includes a first elastic member for providing an elastic force required for the sleeve to move from the first position to the second position.

In this scheme, under the effect of first elastic component, the sleeve can promote the locking piece automatically and reach the locking position, consequently targets in place the battery package installation to needs, and the second locking subassembly just can realize the automatic locking to the battery package.

Preferably, the clamping part body is provided with an unlocking hole, an unlocking rod is arranged in the unlocking hole in a sliding fit mode, and the unlocking rod and the sleeve are arranged in a linkage mode, so that the sleeve can move from the second position to the first position.

In the scheme, the unlocking rod is pushed to drive the sleeve to the first position, so that the locking block can reach the unlocking position, and the purpose of unlocking the battery pack is achieved. Because the unlocking rod is positioned in the unlocking hole, the battery pack can be prevented from being touched by mistake, and the battery pack is prevented from being unlocked accidentally. When the unlocking is needed, the slender rod is inserted into the unlocking hole to push the unlocking rod to move.

Preferably, the battery pack further comprises a support for being cooperatively disposed with the mounting rail of the battery carrier.

In this scheme, the installation guide rail can be connected with support sliding fit, and the support can slide along the installation guide rail to make the battery package can be along Y to the motion on the battery bracket, with quick assembly disassembly and accurate locking that realize the battery package.

Preferably, the support is provided with a sliding hole, and the sliding hole is used for being sleeved on the supporting plate of the mounting guide rail in a matching manner.

In this scheme, the fagging of installation guide rail can insert the sliding hole of support, and the support can be followed Y on the fagging and to sliding.

The electric automobile is characterized by comprising a battery bracket and a battery pack arranged on the battery bracket, wherein when a first locking assembly is arranged on the battery pack or the battery bracket, a second locking assembly is arranged on the other battery pack or the battery bracket.

In this scheme, battery bracket and battery package utilize first locking subassembly and second locking subassembly to realize locking and unblock to realize the quick assembly disassembly of battery package, battery package is fixed reliable, easy dismounting, is favorable to electric automobile quick replacement battery.

The positive progress effects of the utility model are as follows: according to the battery bracket, the battery pack, the electric automobile, the locking method and the unlocking method, the battery bracket can limit the battery pack in the Y direction, and the battery pack is firmly locked, so that the electric automobile can reliably work. Simultaneously, through utilizing first locking subassembly and second locking subassembly, it is comparatively convenient to realize the locking and the unblock of battery package on battery bracket, is favorable to electric automobile's quick trade electricity.

Drawings

Fig. 1 is a schematic structural view of a battery holder and a battery pack according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of the second locking assembly in fig. 1.

Fig. 3 is another schematic structural diagram of a battery holder and a battery pack according to embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of the internal structures of the first locking assembly and the second locking assembly according to embodiment 1 of the present invention, where the locking block is in the unlocked position.

Fig. 5 is a schematic diagram of the internal structure of the first locking assembly and the second locking assembly according to embodiment 1 of the present invention, where the locking block is in the locking position.

Fig. 6 is a flowchart of a locking method according to embodiment 2 of the present invention.

Fig. 7 is a flowchart of an unlocking method according to embodiment 3 of the present invention.

Description of the reference numerals

Battery holder 100

Battery pack 200

First locking assembly 1

Pin 11

Card slot 111

Guide surface 1111

Second locking assembly 2

Engaging part 21

Fastening part body 211

Unlocking hole 2111

Locking block 212

Bushing 22

Communication hole 221

Sleeve 23

Clamping groove 231

Guide slope 2311

Shielding part 232

First elastic member 24

Unlocking lever 25

Bracket body 3

Mounting rail 4

Supporting plate 41

Step 411

First step portion 4111

Second step 4112

Lead angle part 412

Lead angle inclined plane 4121

Guide rib 42

Support 5

Slide hole 51

Guide opening 52

Detailed Description

The utility model is further illustrated by the following examples, which are not intended to limit the scope of the utility model.

Example 1

Embodiment 1 of the present invention provides an electric vehicle having a battery carrier 100 for mounting a battery pack 200, wherein the battery pack 200 and the battery carrier 100 are locked and unlocked by a first locking assembly 1 and a second locking assembly 2. One of the first locking assembly 1 and the second locking assembly 2 is disposed on the battery pack 200, and the other is disposed on the battery holder 100.

The X direction, Y direction and Z direction in the present embodiment are specifically the directions of arrows as shown in fig. 1. The X direction is a direction parallel to the driving direction of the electric automobile; the Y direction refers to the width direction of the electric automobile; the Z direction is a height direction of the electric vehicle.

As shown in fig. 1, in the present embodiment, the battery bracket 100 includes a bracket body 3, and the bracket body 3 may be mounted on a frame of an electric vehicle. The bracket body 3 is provided with a mounting guide rail 4 for the battery pack 200 to slide in and out of the bracket body 3 along the Y direction, and the first locking component 1 is arranged on the bracket body 3 and used for limiting the battery pack 200 on the bracket body 3 along the Y direction. The battery pack 200 includes a second locking member 2 for cooperating with the first locking member 1 to lock and fix the battery pack 200 on the battery carrier 100.

When the battery pack 200 needs to be mounted on the bracket body 3, the mounting guide rail 4 can be utilized to enable the battery pack 200 to approach the bracket body 3, and the first locking component 1 is matched with the second locking component 2 on the battery pack 200 to achieve locking and Y-direction limiting of the battery pack 200. When the battery pack 200 needs to be detached from the bracket body 3, the first locking assembly 1 and the second locking assembly 2 can be unlocked firstly, so that the battery pack 200 can move away from the bracket body 3 along the installation guide rail 4, the battery pack 200 can be detached, and the detachment and installation operation is convenient.

In the present embodiment, two mounting rails 4 are provided to ensure that the battery pack 200 having a heavy weight and a large volume can be supported.

As shown in fig. 4 and 5, the first locking member 1 includes a pin 11 extending in the Y direction, and the battery pack 200 slides along the pin 11 and is fixed to the pin 11 when approaching the bracket body 3 in the Y direction. The second locking member 2 includes an engaging portion 21, and the engaging portion 21 is configured to engage with the pin 11 of the first locking member 1. When the battery pack 200 is mounted on the battery bracket 100, the battery pack 200 can slide on the pin 11, and the battery pack 200 is engaged with the first locking member 1 by the engaging portion 21 of the second locking member 2 and fixed to the pin 11, thereby locking the battery pack 200 and the battery bracket 100. The whole locking process only needs to drive the battery pack 200 to slide, and other operation actions are not needed, so that the locking mode is convenient.

The pin 11 is provided with a slot 111 for engaging with the engaging portion 21 of the battery pack 200. The engaging portion 21 of the second locking unit 2 includes an engaging portion body 211, and a lock block 212 movable between a locked position and an unlocked position with respect to the engaging portion body 211. The battery pack 200 is locked with the clamping groove 111 of the pin shaft 11 in a clamping manner, so that the connection process is convenient, the locking is reliable, and the structure is simple.

The specific principle of the snap connection between the first locking component 1 and the second locking component 2 is as follows: when the locking block 212 is in the locking position, the locking block 212 is partially located in the locking groove 111 of the pin shaft 11, a part of the locking block 212 is clamped on the clamping part body 211, and the second locking assembly 2 and the first locking assembly 1 are in the locking state, so that the battery pack 200 can be locked; when the locking block 212 is in the unlocking position, the locking block 212 is withdrawn from the clamping groove 111, the second locking assembly 2 and the first locking assembly 1 are in the unlocking state, the first locking assembly 1 and the second locking assembly 2 can be separated, and the battery pack 200 can be taken down from the battery bracket 100.

Specifically in this embodiment, the locking block 212 is a ball, and the ball has a smaller friction force in the movement process, so that the movement is smooth, and the risk of locking the locking block 212 is reduced. Accordingly, the catching groove 111 is a recess of approximately a hemispherical shape, and a part of the ball may enter the catching groove 111. The ball can be provided in plurality to increase the reliability of the clamping.

In some other embodiments, the clamping groove 111 may be an annular groove formed in the outer peripheral surface of the pin 11, and since the clamping groove 111 is disposed around the outer periphery of the pin 11, the clamping may be implemented at any position in the circumferential direction of the pin 11, and the battery pack 200 may make full use of the space of the clamping groove 111, and is clamped with the clamping groove 111 through a plurality of fasteners or similar structures, thereby improving the reliability of the clamping.

The opening of draw-in groove 111 is provided with spigot surface 1111 to make the opening be the shape of outside expansion, the joint structure on the battery package 200 can utilize spigot surface 1111 to conveniently pass in and out draw-in groove 111, thereby makes the unblock and the locking of battery package 200 comparatively convenient. In this embodiment, the ball may conveniently roll into the slot 111 using the guide surface 1111.

The engaging portion 21 further includes a shaft sleeve 22, a communication hole 221 is formed in a side wall of the shaft sleeve 22, the locking block 212 is disposed in the communication hole 221 in a sliding fit manner, the shaft sleeve 22 is used for the pin 11 to be inserted in a fit manner, when the pin 11 is inserted into the shaft sleeve 22 to a specific position, the communication hole 221 is aligned with the clamping groove 111, the locking block 212 can slide into the clamping groove 111 from the communication hole 221, so that locking is achieved, and when unlocking is needed, the locking block 212 is withdrawn from the clamping groove 111, so that the shaft sleeve 22 is separated from the pin 11.

The sleeve 23 is sleeved outside the shaft sleeve 22 of the second locking assembly 2, the sleeve 23 can move between a first position and a second position, the sleeve 23 is provided with a clamping groove portion 231 and a shielding portion 232, and when the sleeve 23 is located at the first position, the clamping groove portion 231 is aligned with the communication hole 221; when the sleeve 23 is located at the second position, the shielding portion 232 shields the opening of the communication hole 221. When the sleeve 23 is located at the first position, the catch groove portion 231 is aligned with the communication hole 221, the lock block 212 partially enters the catch groove portion 231, and the lock block 212 can be completely withdrawn from the catch groove 111, that is, the lock block 212 can be moved to the unlock position. When the sleeve 23 is located at the second position, the blocking portion 232 blocks the locking block 212 to be locked at the locking position, and the locking block cannot be withdrawn from the slot 111, so that the first locking component 1 and the second locking component 2 are kept in the locking state. The sleeve 23 can thus function as a safety device for the second locking assembly 2, so that the locking of the battery pack 200 is reliable.

The catching groove 231 is provided with a guide slope 2311 cooperating with the locking block 212 at a junction with the shielding portion 232 such that the guide slope 2311 pushes the locking block 212 to move toward the locking position when the sleeve 23 moves from the first position to the second position. When it is necessary to lock the battery pack 200, the guide slope 2311 may push the locking piece 212 to move from the unlocking position to the locking position, that is, push the locking piece 212 into the locking groove 111, by moving the sleeve 23 from the first position to the second position, so that the locking operation can be performed by driving the sleeve 23.

The engaging portion 21 includes a first elastic member 24, the first elastic member 24 is used for providing an elastic force required by the sleeve 23 to move from the first position to the second position, and under the action of the first elastic member 24, the sleeve 23 can automatically push the locking block 212 to reach the locking position, so that the battery pack 200 is mounted in place, and the second locking assembly 2 can automatically lock the battery pack 200. Specifically, one end of the first elastic element 24 abuts against the sleeve 23, and the other end abuts against the shaft sleeve 22, when the sleeve 23 is located at the first position, the first elastic element 24 is pressed, and when the external force is removed, the elastic force of the first elastic element 24 enables the sleeve 23 to move from the first position to the second position. In the embodiment, the first elastic element 24 is sleeved outside the shaft sleeve 22.

The engaging portion 21 further includes a second elastic member (not shown) for providing an elastic force required for the lock block 212 to move from the locked position to the unlocked position. Through applying unblock external force on sleeve 23 to overcome the elasticity of first elastic component 24, make sleeve 23 move to the first position, make joint slot part 231 and communication hole 221 counterpoint, at this moment under the effect of second elastic component, locking piece 212 can move to the unblock position from the locking position, consequently can realize unblock battery package 200 through applying unblock external force. In some preferred embodiments, a second elastic member is disposed between the locking block 212 and the locking groove 111, and when the sleeve 23 is in the second position, the second elastic member is compressed, and when the sleeve 23 moves from the second position to the first position, the second elastic member releases the elastic force, so that the locking block 212 moves from the locking position to the unlocking position. In some other preferred embodiments, a second elastic member may also be disposed between the locking block 212 and the sleeve 23, and when the locking block 212 is located in the slot 111, the second elastic member is under tension, and when the sleeve 23 is in the first position, the locking block 212 moves from the locking position to the unlocking position under the tension of the second elastic member.

As shown in fig. 2, the engaging portion body 211 is opened with an unlocking hole 2111, the unlocking hole 2111 extends in the Y direction, an unlocking lever 25 is provided in the unlocking hole 2111 in a sliding fit, and the unlocking lever 25 is provided in a linked manner with the sleeve 23 so that the sleeve 23 can move from the second position to the first position. By applying an unlocking external force, the unlocking lever 25 can be pushed to drive the sleeve 23 to the first position, so that the locking block 212 can reach the unlocking position, thereby achieving the purpose of unlocking the battery pack 200. Specifically, one end of the lock release lever 25 is connected to the sleeve 23, and the connection may be achieved by abutting against each other or by fixedly connecting both. When the external force drives the unlocking rod 25 to move towards the approaching sleeve along the Y direction, the sleeve 23 moves from the second position to the first position under the pushing of the unlocking rod 25, so that the locking block 212 can reach the unlocking position, and the battery pack 200 can be unlocked by the external force; then, another external force may be applied to the unlocking lever 25 to move the unlocking lever 25 in the Y direction away from the sleeve, so that the sleeve 23 moves from the first position to the second position, so that the locking block 212 enters the locking position to lock the battery pack 200, or the sleeve 23 may move from the first position to the second position by the first elastic member 24, which facilitates the locking of the battery pack.

Since the unlocking lever 25 is located in the unlocking hole 2111, it is possible to prevent accidental contact and prevent the battery pack 200 from being unlocked accidentally. When unlocking is required, the elongated rod is inserted into the unlocking hole 2111 to push the unlocking lever 25 to move.

As shown in fig. 1 and 3, the battery pack 200 further includes a holder 5, and the holder 5 is configured to be disposed in cooperation with the mounting rail 4 of the battery bracket 100. The mounting rail 4 can be connected with the support 5 in a sliding fit manner, and the support 5 can slide along the mounting rail 4, so that the battery pack 200 can move on the battery bracket 100 along the Y direction, and the battery pack 200 can be quickly assembled and disassembled and can be accurately locked.

The mounting guide rail 4 comprises a supporting plate 41 extending along the Y direction and used for being matched with a support 5 of the battery pack 200 to limit the battery pack 200 in the Z direction and the X direction, and the supporting plate 41 and the pin shaft 11 are positioned on the same side of the bracket body 3. The supporting plate 41 can penetrate through the support 5 of the battery pack 200, so that the battery pack 200 can slide along the Y direction under the guidance of the supporting plate 41, and meanwhile, the supporting plate 41 can limit the battery pack 200 in the Z direction and the X direction. When the battery pack 200 slides along the supporting plate 41 to approach to a predetermined position, the battery pack 200 can be connected with the pin shaft 11, so that the battery pack 200 can be locked.

The support 5 is provided with a sliding hole 51, and the sliding hole 51 is used for being fittingly sleeved on the supporting plate 41 of the mounting guide rail 4. The stay plate 41 of the mounting rail 4 can be inserted into the slide hole 51 of the holder 5, and the holder 5 can slide on the stay plate 41 in the Y direction.

The fagging 41 includes step portion 411, and step portion 411 includes first step portion 4111 and the second step portion 4112 of keeping away from the setting of bracket body 3 in proper order along the Y to, and the sectional area of second step portion 4112 is not more than the sectional area of first step portion 4111, and first step portion 4111 and second step portion 4112 are configured to can cooperate with the battery package 200 in order to carry out X to spacing with the Z to the battery package 200.

In the embodiment 1, when the battery pack 200 is mounted in place on the battery bracket 100, the holder 5 of the battery pack 200 is engaged with the step portion 411, so that only the step portion 411 needs to be precisely machined, and the machining precision of other portions of the stay plate 41 can be low, thereby reducing the cost of the stay plate 41. In the process of mounting the battery pack 200 to the battery tray 100, the support 5 of the battery pack 200 passes the second step portion 4112 and the first step portion 4111 in order, so the second step portion 4112 is smaller than the first step portion 4111, otherwise the support plate 41 cannot completely pass through the support 5.

The step portion 411 further includes a chamfered portion 412, and the cross section of the chamfered portion 412 is smaller toward the direction of the stay plate 41 so that the step portion 411 smoothly penetrates into the holder 5 of the battery pack 200. Preferably, the chamfer portion 412 has a chamfer face 4121, and the inclination angle between the chamfer face 4121 and the step portion 411 is 0-45 °, more preferably 3-20 °, further preferably 5-15 °. When the step portion 411 penetrates into the holder 5 of the battery pack 200, the guide corner portion 412 serves as a guide to facilitate penetration of the step portion 411. The smaller angle of the lead angle inclined surface 4121 is favorable for guiding the support 5, but if the angle is too small, the difficulty of processing is increased, and the material of the supporting plate 41 is increased, which is unfavorable for reducing the weight of the supporting plate 41.

The supporting plate 41 is provided with a guide convex rib 42 extending along the Y direction on one side in the Z direction, and the guide convex rib 42 extends outwards from one side surface of the supporting plate 41 departing from the battery pack to enhance the strength and rigidity of the supporting plate 41. The guide ribs 42 can improve the rigidity and strength of the supporting plate 41, so that the supporting plate 41 can support a heavier battery pack 200, and the guide ribs 42 can also guide the support 5 of the battery pack 200, so that the battery pack 200 can be conveniently disassembled and assembled. The end of the guide rib has a guide slope extending from one side of the supporting plate 41 toward the protruding end, and the guide slope may have an inclination angle of 0 to 30 °. Correspondingly, the support 5 is provided with a guide opening 52 at one side in the Z direction, the guide opening 52 is arranged in sliding fit with the guide rib 42, and the guide inclined plane is used for guiding the support 5 to be in sliding fit with the guide rib 42.

In the electric automobile of this embodiment, battery bracket 100 and battery package 200 utilize first locking subassembly 1 and second locking subassembly 2 to realize locking and unblock to realize the quick assembly disassembly of battery package 200, battery package 200 is fixed reliable, easy dismounting, is favorable to electric automobile quick replacement battery.

Example 2

Embodiment 2 of the present invention provides a locking method, which can be applied to the electric vehicle in embodiment 1, and locks the battery pack 200 to the battery bracket 100 by engaging the second locking member 2 provided to the battery pack 200 with the first locking device provided to the battery bracket 100.

As shown in fig. 6, the locking method of the present embodiment includes the steps of:

approaching the battery pack 200 to the battery holder 100 in the Y direction;

controlling the second locking assembly 2 of the battery pack 200 to be aligned with the first locking assembly 1 of the battery bracket 100;

the second locking component 2 is clamped and fixed with the first locking component 1.

When the battery pack 200 needs to be locked, the battery pack 200 moves towards the battery bracket 100 and is connected with the battery bracket 100, and when the battery pack 200 moves to a preset position on the battery bracket 100, the second locking component 2 is connected with the first locking component 1 and realizes clamping and fixing.

As a preferred embodiment, before the battery pack 200 approaches the battery tray 100 in the Y direction, the following steps are included:

the battery pack 200 is controlled to be aligned with the battery bracket 100 so that the support 5 at the bottom of the battery pack 200 is aligned with the stay plate 41.

When it is desired to mount the battery pack 200 on the battery bracket 100, the support 5 at the bottom of the battery pack 200 is aligned with the support plate 41 (as shown in fig. 1), the support 5 of the battery pack 200 can be connected with the support plate 41 in a sliding fit, so that the battery pack 200 can slide on the battery bracket 100 for mounting, and when the battery pack 200 is moved to the state that the second locking component 2 is in contact with the first locking component 1 and then is clamped, the battery pack 200 is locked on the battery bracket 100 (as shown in fig. 3). The locking method is very convenient and is beneficial to the quick replacement of the battery pack 200.

In a preferred embodiment, before the second locking member 2 is engaged and fixed with the first locking member 1, the method includes the following steps:

applying an unlocking force to the unlocking lever 25 moves the sleeve 23 to the first position, so that the locking block 212 moves to the unlocking position.

The locking block 212 is indirectly driven to move to the unlocking position by the driving sleeve 23, so that the pin shaft 11 of the first locking component 1 can be smoothly matched and connected with the second locking component 2.

Preferably, the step of applying an external unlocking force to the unlocking lever 25 to move the sleeve 23 to the first position so as to move the locking block 212 to the unlocking position includes the following steps:

controlling the battery pack 200 to move onto the pin shaft 11, so that the clamping groove 111 is aligned with the locking block 212;

the unlocking external force is removed, so that the sleeve 23 drives the locking block 212 into the clamping groove 111 of the pin shaft 11.

When the clamping groove 111 and the locking block 212 are aligned, the locking block 212 can be inserted into the clamping groove 111 to lock the battery pack 200, and after the external unlocking force is removed, the sleeve 23 can move from the first position to the second position, so that the locking block 212 is pushed to enter the clamping groove 111, and the locking block 212 is locked in the clamping groove 111.

Example 3

An embodiment 2 of the present invention provides an unlocking method, which can be applied to an electric vehicle in embodiment 1, and as shown in fig. 7, the unlocking method includes the following steps:

the second locking component 2 is unlocked from the first locking component 1;

the battery pack 200 moves in the Y direction until it is disengaged from the battery tray 100.

When the second locking assembly 2 is unlocked from the first locking assembly 1, the battery pack 200 is unlocked from the battery bracket 100, and the battery pack 200 can move in the Y direction and be separated from the battery bracket 100, so that the battery pack 200 can be removed from the battery bracket 100. The unlocking method is simple and is beneficial to quickly replacing the battery pack 200.

As a preferred embodiment, the unlocking of the second locking member 2 from the first locking member 1 comprises the steps of:

applying an unlocking force to the unlocking lever 25 moves the sleeve 23 to the first position, so that the locking block 212 moves to the unlocking position.

The unlocking rod 25 is driven by an external unlocking force to overcome the elastic force of the first elastic member 24, so as to drive the sleeve 23 to move to the first position, so that the snap-fit groove 231 of the sleeve 23 is aligned with the communication hole 221, and the locking block 212 can partially move to the snap-fit groove 231 and withdraw from the snap-fit groove 111 of the pin 11 (for example, under the action of the second elastic member, the locking block 212 moves to the snap-fit groove 231), so that the second locking assembly 2 is unlocked from the first locking assembly 1.

While specific embodiments of the utility model 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 utility model 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 utility model, and these changes and modifications are within the scope of the utility model.

Claims (20)

1. A battery tray, comprising:

the bracket comprises a bracket body, a battery pack and a bracket body, wherein the bracket body is provided with a mounting guide rail for the battery pack to slide in and out of the bracket body along the Y direction;

the first locking assembly is arranged on the bracket body and used for limiting the battery pack on the bracket body in the Y direction.

2. The battery carrier as in claim 1, wherein said first locking member includes a pin extending in the Y-direction, said battery pack sliding along and being secured to said pin as it enters the carrier body in the Y-direction.

3. The battery bracket of claim 2, wherein the pin defines a slot for engaging with the battery pack.

4. The battery carrier as in claim 3, in which said locking slot is an annular groove formed in the outer periphery of said pin.

5. The battery carrier as defined in claim 3, wherein the opening of said card slot is provided with a guide surface so that said opening takes an outwardly flared shape.

6. The battery carrier as in claim 1, wherein the mounting rail includes a support plate extending in the Y-direction for engaging a support of the battery pack for Z-and X-position limiting of the battery pack, the support plate and the pin being located on the same side of the carrier body.

7. The battery bracket according to claim 6, wherein the supporting plate comprises a step part, the step part comprises a first step part and a second step part which are sequentially arranged away from the bracket body along the Y direction, the sectional area of the first step part is not smaller than that of the second step part, and the first step part and the second step part are configured to be matched with the battery pack to limit the battery pack in the X direction and the Z direction.

8. The battery holder according to claim 7, wherein the stepped part further comprises a chamfered part so that the stepped part smoothly penetrates into the holder of the battery pack.

9. The battery carrier as claimed in claim 6, wherein the stay plate is provided at one side in the Z direction with a guide rib extending in the Y direction to reinforce the strength and rigidity of the stay plate.

10. A battery pack including a second latch assembly for cooperating with the first latch assembly of the battery carrier of any one of claims 1 to 9 to lockingly secure the battery pack to the battery carrier.

11. The battery pack of claim 10, wherein the second locking assembly includes a snap-fit portion for snap-fitting with a pin in the first locking assembly.

12. The battery pack according to claim 11, wherein the engaging portion includes an engaging portion body, and a lock block movable between a locked position and an unlocked position with respect to the engaging portion body,

when the locking block is in the locking position, the locking block is partially positioned in the clamping groove of the pin shaft, and the second locking assembly and the first locking assembly are in a locking state;

when the locking block is located at the unlocking position, the locking block is withdrawn from the clamping groove, and the second locking assembly and the first locking assembly are located in an unlocking state.

13. The battery pack of claim 12, wherein the engaging portion further comprises a sleeve, a communication hole is formed in a side wall of the sleeve, the locking block is slidably disposed in the communication hole, and the sleeve is configured to allow the pin to be fittingly inserted therein, such that the communication hole is aligned with the engaging groove.

14. The battery pack according to claim 13, wherein a sleeve is sleeved outside the shaft sleeve, the sleeve is movable between a first position and a second position, the sleeve has a snap groove portion and a shielding portion, and the snap groove portion is aligned with the communication hole when the sleeve is located at the first position; when the sleeve is located at the second position, the shielding portion shields the opening of the communication hole.

15. The battery pack of claim 14, wherein the snap groove portion is provided with a guide ramp surface at a location where the snap groove portion meets the blocking portion to cooperate with the locking block such that the guide ramp surface urges the locking block to move toward the locked position when the sleeve moves from the first position to the second position.

16. The battery pack of claim 14, wherein the engaging portion comprises a first resilient member for providing a resilient force required to move the sleeve from the first position to the second position.

17. The battery pack according to claim 14, wherein the engaging portion body has an unlocking hole, an unlocking rod is slidably fitted in the unlocking hole, and the unlocking rod is linked with the sleeve so that the sleeve can move from the second position to the first position.

18. The battery pack of claim 10, further comprising a stand for cooperatively positioning with a mounting rail of the battery carrier.

19. The battery pack of claim 18, wherein the support base defines a sliding hole for fittingly receiving the support plate of the mounting rail.

20. An electric vehicle comprising a battery carrier according to any one of claims 1 to 9 and a battery pack according to any one of claims 10 to 19, said battery pack being mounted on said battery carrier, wherein when a first locking member is provided on one of said battery pack or said battery carrier, a second locking member is provided on the other.

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