CN211252183U

CN211252183U - Fixing device of power battery

Info

Publication number: CN211252183U
Application number: CN201921685406.2U
Authority: CN
Inventors: 曾维权; 华超; 黄红光; 吴启泉; 邹微波
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: GAC Aion New Energy Automobile Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-08-14
Anticipated expiration: 2029-10-08

Abstract

The utility model provides a power battery's fixing device, it includes: the screw comprises a first screw part and a second screw part, wherein the first screw part is connected with the vehicle body; a clamping mechanism mounted on the power battery and adapted to be detachably connected with the second portion of the screw to detachably fix the power battery to the vehicle body; this clamping mechanism includes: the anti-rotation clamping device comprises a shell main body, a clamping jaw, a rotating body, an anti-rotation clamping disc, a spring and a base, wherein the shell main body is provided with an inner space defined by an inclined inner wall, and the clamping jaw, the rotating body, the anti-rotation clamping disc and the spring are located in the inner space and are kept in the inner space through the base. The utility model provides a fixing device simple structure, convenient operation can realize dismantling fast and installing power battery.

Description

Fixing device of power battery

Technical Field

The utility model relates to a battery auxiliary device technical field especially relates to a power battery's fixing device.

Background

With the increasing contraction of global energy, new energy automobiles are more and more concerned by people, wherein electric automobiles are widely concerned by people due to the easy availability and cleanliness of electric energy and gradually enter the daily life of people. The power battery is a core component of the electric automobile, however, the current battery technology has insufficient cruising ability, which requires frequent charging of the electric automobile. However, compared with the refueling time of a fuel vehicle, the charging time of the new energy vehicle needs to be more than half an hour, so that the rapid popularization of the new energy vehicle is greatly limited, especially in the commercial vehicle market.

In order to solve the demand of rapidly supplementing electricity after the electricity of the new energy automobile is used up, various automobile manufacturers and matching manufacturers in the industry try to solve the problem of slow charging by replacing batteries at present. However, the conventional battery fixing structure is generally connected directly by bolts or nuts or connected by a clamping plate mechanism, and a special tool is required, so that the battery fixing device has a complex structure, high cost, poor assembly manufacturability and low efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the limitation of the prior art, the present invention is directed to a fixing device with simple structure, convenient operation, low cost, and capable of quickly disassembling and assembling a power battery.

In order to achieve the above object, an embodiment of the present invention provides a fixing device for a power battery, including: a screw including a first screw portion and a second screw portion, wherein the first screw portion is adapted to be coupled to a vehicle body; a clamping mechanism mounted on the power battery and adapted to be detachably connected with the screw second portion to detachably fix the power battery to the vehicle body; wherein the clamping mechanism comprises: a housing body having an inner space defined by an inclined inner wall, the housing body having a first opening at a top end and a second opening at a bottom end, the first and second openings communicating with the inner space, wherein an inner diameter of the first opening is smaller than an inner diameter of the second opening; the clamping jaw is positioned in the inner space, is arranged by being attached to the inner wall of the shell main body and can slide up and down along the inner wall of the shell main body; a rotating body located within the interior space and below the jaws, including a body first portion and a body second portion, wherein the body first portion has an inclined outer surface that engages an inner surface of the jaws; the anti-rotation chuck is sleeved on the rotating body; the spring is sleeved on the rotating body and is positioned between the clamping jaw and the anti-rotating chuck; and a base located at the second opening and detachably connected with the housing main body, for holding the jaws, the rotating body, the rotation-preventing chuck and the spring in the inner space.

In some embodiments of the present invention, the first portion of the screw is cylindrical and has a thread on the surface thereof for screwing with the vehicle body; the second part of the screw rod is in a circular truncated cone shape and is positioned below the first part of the screw rod, and a conical head is arranged at the bottom end of the second part of the screw rod.

In some embodiments of the present invention, a sliding groove is formed on the inner wall of the housing main body, and the claw is disposed in the sliding groove to slide up and down along the inner wall of the housing main body.

In some embodiments of the invention, the inner surface of the jaw is provided with a thread.

In some embodiments of the invention, the outer surface of the first part of the body is provided with threads which engage with the threads of the inner surface of the jaw, so that the jaw slides up and down along the inner wall of the housing body by rotation control of the rotating body.

In some embodiments of the present invention, the inner side of the rotation preventing chuck is provided with downward-facing inverted conical teeth.

The utility model discloses an in some embodiments, the outside of body second part is equipped with the tooth of preventing changeing up, with prevent changeing the inboard back taper tooth phase-match of chuck, so that rotatory body can only be followed predetermined direction rotation.

In some embodiments of the present invention, the outer surface of the anti-rotation chuck is provided with at least 4 protrusions.

In some embodiments of the present invention, the inner surface of the base is provided with a groove matched with the protrusion of the outer surface of the rotation prevention chuck to prevent the rotation prevention chuck from rotating.

In some embodiments of the present invention, the bottom end of the rotating body is provided with a rotating hole, so that a rotating tool is inserted into the rotating hole to drive the rotating body to rotate.

In some embodiments of the present invention, the outer surface of the base is provided with threads that match the threads of the inner surface of the second opening; the bottom of base is equipped with 4 at least unlocking holes to the unblock instrument passes the unlocking hole will prevent changeing chuck jack-up in order to unblock the direction of rotation of rotating the body.

The utility model provides a power battery's fixing device simple structure need not to match the design to have general usefulness, and simple structure also makes the production process more convenient, further reduce cost. And simultaneously, the utility model provides a power battery's fixing device convenient operation can realize dismantling power battery's quick and installation for current power battery's fixing device.

Drawings

Fig. 1 is an exploded view of a power cell fixture according to an exemplary embodiment of the present invention;

FIG. 2 is a front view of the screw of the fixture of FIG. 1;

FIG. 3 is a cross-sectional view of a clamping mechanism of the fixture of FIG. 1;

FIG. 4 is a perspective view of the housing body and pawl of the fixture of FIG. 1;

FIG. 5 is a perspective view of the rotating body of the fixture of FIG. 1;

FIG. 6 is a cross-sectional view of the fixture of FIG. 1 in a clamped condition;

FIG. 7 is a perspective view of an anti-rotation chuck of the fixture of FIG. 1;

fig. 8 is a perspective view of the base of the fixture of fig. 1.

In the figure: 1-fixation device, 11-screw, 111-screw first portion, 112-screw second portion, 1121-cone, 12-clamping mechanism, 121-housing main body, 1211-interior space, 1212-first opening, 1213-second opening, 122-jaw, 123-rotating body, 1231-body first portion, 1232-body second portion, 1233-anti-rotation tooth, 1234-rotating hole, 124-anti-rotation chuck, 1241-inverted cone tooth, 1242-protrusion, 125-spring, 126-base, 1261-groove, 1262-unlocking hole.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is an exploded view of a power battery fixing device 1 according to an exemplary embodiment of the present invention, and referring to fig. 1, in the present embodiment, the fixing device 1 may include a screw 11 adapted to be connected to a vehicle body and a clamping mechanism 12 adapted to be connected to a power battery, and the power battery may be detachably fixed to the vehicle body through the connection of the screw 11 and the clamping mechanism 12. Wherein, clamping mechanism 12 includes: a housing main body 121, jaws 122, a rotating body 123, an anti-rotation chuck 124, a spring 125, and a base 126.

Specifically, fig. 2 shows the structure of the screw 11, and referring to fig. 2, in the present embodiment, the screw 11 includes a first screw portion 111 and a second screw portion 112. The first screw part 111 is adapted to be connected to a vehicle body, and preferably, the first screw part 111 is cylindrical and has a surface provided with threads for being screwed with the vehicle body. The second screw portion 112 is located below the first screw portion 111 and is adapted to be detachably connected to the clamping mechanism 12, and preferably, the second screw portion 112 is of a truncated cone shape to prevent loosening after clamping. In an alternative embodiment, the bottom end of the second screw portion 112 may further be provided with a conical head 1121, and the outer diameter of the conical head 1121 is slightly larger than that of the bottom end of the second screw portion 112, so as to prevent the second screw portion 112 from loosening from the clamping mechanism 12 after clamping failure.

Fig. 3 shows a cross-sectional view of the clamping mechanism 12, referring to fig. 3, in the present embodiment, the housing main body 121 has an inner space 1211 defined by inclined inner walls, and the housing main body 121 has a first opening 1212 at a top end and a second opening 1213 at a bottom end, the first opening 1212 and the second opening 1213 are communicated with the inner space 1211, and an inner diameter of the first opening 1212 is smaller than an inner diameter of the second opening 1213. Thus, the housing main body 121 is formed in a truncated cone shape, and has an internal space 1211 defined by a boundary of the truncated cone shape.

In the present embodiment, the claws 122 are disposed in the internal space 1211 and are disposed against the inner wall of the housing main body 121 so as to be slidable up and down along the inner wall. Preferably, referring to fig. 4, a sliding groove is provided on an inner wall of the housing main body 121, and the jaw 122 is disposed in the sliding groove so as to slide up and down along the inner wall.

In the present embodiment, the rotating body 123 is also disposed in the inner space 1211 and below the jaws 122. Referring to fig. 3 and 5, the rotating body 123 includes a body first portion 1231 and a body second portion 1232, wherein the body first portion 1231 has an inclined outer surface, and the inclined outer surface is engaged with the inner surface of the jaw 122. The bottom end of the rotating body 123 further has a rotating hole 1234 so that a rotating tool is inserted into the rotating hole 1234 to rotate the rotating body 123. Preferably, the rotation hole 1234 may be a hexagon socket type.

In this embodiment, referring to fig. 4 and 5, the inner surface of the pawl 122 is provided with a thread, and the outer surface of the first portion 1231 of the body is provided with a thread engaged with the inner surface, and after the engagement of the threads, when the rotating body 123 rotates, the pawl 122 slides up and down along the inner wall of the housing main body 121 by the thread.

Fig. 6 shows a cross-sectional view of the fixing device 1 in a clamping state, and referring to fig. 6, in the present embodiment, by rotating the rotating body 123 in a tightening direction, the jaws 122 are driven to slide upwards along the inner wall of the housing main body 121 by rotating the tapered threads on the outer surface of the first portion 1231 of the body 123, so as to reduce the size of the inner diameter formed by the jaws 122, thereby clamping the screw 11. Similarly, rotating the rotating body 123 in the loosening direction causes the jaws 122 to slide down along the inner wall of the housing body 121 by the tapered threads on the outer surface of the first body portion 1231 of the rotating body 123, thereby increasing the size of the inner diameter formed by the jaws 122 to loosen the screw 11.

In order to prevent the screw 11 from being loosened by the self-rotation of the rotating body 123 in the loosening direction after the clamping mechanism 12 clamps the screw, a rotation prevention measure needs to be applied to the rotating body 123. In the present embodiment, the spin prevention chuck 124 is provided to prevent the spin body 123 from spinning in the loosening direction. The anti-rotation chuck 124 is sleeved on the rotation body 123, specifically, referring to fig. 5 and 7, the outer side of the second body part 1232 of the rotation body 123 is provided with an upward anti-rotation tooth 1233, the inner side of the anti-rotation chuck 124 is provided with a downward inverted cone tooth 1241, the anti-rotation tooth 1233 and the inverted cone tooth 1241 are matched with each other, and under the condition that the two are meshed, the rotation body can only rotate along the preset screwing direction.

Meanwhile, in order to maintain the engagement state of the anti-rotation teeth 1233 and the reverse-tapered teeth 1241, in the present embodiment, the clamping mechanism 12 further includes a spring 125. Referring to fig. 3, the spring 125 is sleeved on the rotating body and located between the claw 122 and the anti-rotation chuck 124, and the anti-rotation chuck 124 is pressed down by its own elastic force, so as to keep the anti-rotation teeth 1233 and the inverted cone teeth 1241 in a meshed state all the time.

Similarly, to prevent the anti-rotation chuck 124 from rotating, referring to fig. 7, at least 4 protrusions 1242 are provided on the outer surface of the anti-rotation chuck 124 and are embedded in the base 126, so that the anti-rotation chuck 124 is not rotatable relative to the base 126.

Specifically, in the present embodiment, the clamping mechanism 12 further includes a base 126, and referring to fig. 3, the base 126 is located at the second opening 1213 and detachably connected to the housing main body 121 for holding the jaws 122, the rotating body 123, the rotating chuck 124, and the spring 125 in the inner space 1211. Referring to fig. 8, the outer surface of the base 126 is provided with threads matching the threads of the inner surface of the second opening 1213, so that the base 126 is detachably fixed at the second opening 1213. The inner surface of the base 126 is provided with a groove 1261 matched with the protrusion 1242 on the outer surface of the anti-rotation chuck 124, so that after the anti-rotation chuck 124 is matched and embedded in the base 126, the anti-rotation chuck 124 can be prevented from rotating, but the anti-rotation chuck 124 can slide up and down along the groove 1261.

In this embodiment, at least 4 unlocking holes 1262 are further formed in the bottom end of the base 126, and an unlocking tool can pass through the unlocking holes 1262 to jack up the rotation preventing chuck 124, so that the rotation preventing teeth 1233 and the inverted cone teeth 1241 are disengaged, and the rotation direction of the rotating body 123 is unlocked and can be rotated in the loosening direction.

The following will illustrate the use of the power battery fixing device 1 provided by the present invention:

(1) the installation process comprises the following steps:

the clamping mechanism 12 is mounted to the power cell by screwing the first portion 111 of the screw 11 into the body, with the pawl 122 in a bottom-most position, i.e., with the largest opening. The power cell is raised such that the second portion 112 of the screw 11 enters the interior 1211 through the first opening 1212. At this time, the rotating tool engages the hexagonal socket-shaped rotating hole 1234 at the bottom end of the rotating body 123, which drives the rotating body 123 to rotate in the tightening direction, so that the jaws 122 slide upward along the inner wall of the housing main body 121 until the screw second portion 112 is clamped, and the installation is completed.

(2) The disassembling process comprises the following steps:

the anti-rotation chuck 124 is jacked up through the unlocking hole 1262 by a needle-jacking type unlocking tool, the rotating body 123 is unlocked, the rotating tool is inserted into the hexagonal socket type rotating hole 1234, the rotating body 123 is driven to rotate towards the loosening direction, the clamping jaws 122 are made to slide downwards along the inner wall of the shell main body 121, the screw second part 112 is loosened, and the disassembly is completed.

The utility model provides a power battery's fixing device 1 simple structure need not to match the design to have general usefulness, and simple structure also makes the production process more convenient, further reduce cost. And simultaneously, the utility model provides a power battery's 1 convenient operation of fixing device can realize dismantling power battery's quick and installation for current power battery's fixing device.

Although some embodiments have been described herein by way of example, various modifications may be made to these embodiments without departing from the spirit of the invention, and all such modifications are intended to be included within the scope of the invention as defined in the following claims.

The particular embodiments disclosed herein are illustrative only, as the invention may be modified in nature and equivalents thereof, apparent to those skilled in the art from the teachings herein, and, thus, the specific embodiments of the invention disclosed above are illustrative only, and are not to be considered in a limiting sense as to the details of construction or design herein disclosed unless otherwise specified in the claims. Accordingly, the particular illustrative embodiments disclosed above are susceptible to various substitutions, combinations or modifications, all of which are within the scope of the disclosure. The power cell securing devices illustratively disclosed herein may still be suitably implemented in the absence of any element not specifically disclosed herein or in the absence of any optional component disclosed herein. All numbers and ranges disclosed above may also vary somewhat. Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, any range of values disclosed herein is to be understood as being inclusive of any of the values and ranges encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the applicant.

In addition, the number of components in the claims includes one or at least one unless otherwise specified. If there is any inconsistency between the words or terms used in the present invention and the usage or meaning in other documents, the definitions of the words or terms used in the present invention shall be applied.

Claims

1. A power battery fixing device, characterized in that, the fixing device includes:

a screw including a first screw portion and a second screw portion, wherein the first screw portion is adapted to be coupled to a vehicle body;

a clamping mechanism mounted on the power battery and adapted to be detachably connected with the screw second portion to detachably fix the power battery to the vehicle body;

wherein the clamping mechanism comprises:

a housing body having an inner space defined by an inclined inner wall, the housing body having a first opening at a top end and a second opening at a bottom end, the first and second openings communicating with the inner space, wherein an inner diameter of the first opening is smaller than an inner diameter of the second opening;

the clamping jaw is positioned in the inner space, is arranged by being attached to the inner wall of the shell main body and can slide up and down along the inner wall of the shell main body;

a rotating body located within the interior space and below the jaws, including a body first portion and a body second portion, wherein the body first portion has an inclined outer surface that engages an inner surface of the jaws;

the anti-rotation chuck is sleeved on the rotating body;

the spring is sleeved on the rotating body and is positioned between the clamping jaw and the anti-rotating chuck;

and a base located at the second opening and detachably connected with the housing main body, for holding the jaws, the rotating body, the rotation-preventing chuck and the spring in the inner space.

2. The fixture of claim 1,

the first part of the screw rod is cylindrical, and the surface of the first part of the screw rod is provided with threads for being in threaded connection with the vehicle body;

the second part of the screw rod is in a circular truncated cone shape and is positioned below the first part of the screw rod, and a conical head is arranged at the bottom end of the second part of the screw rod.

3. The fixture of claim 1,

the inner wall of the shell main body is provided with a sliding groove, and the clamping jaw is arranged in the sliding groove to slide up and down along the inner wall of the shell main body.

4. The fixture of claim 1,

the inner surface of the clamping jaw is provided with threads.

5. The fixture according to claim 4,

the outer surface of the first portion of the body is provided with threads engaged with the threads of the inner surface of the jaws so that the jaws are controlled to slide up and down along the inner wall of the housing main body by the rotation of the rotating body.

6. The fixture of claim 1,

the inner side of the anti-rotation chuck is provided with downward inverted bevel teeth.

7. The fixture of claim 6,

the outside of body second part is equipped with the ascending tooth that prevents changeing, with prevent changeing the back taper tooth phase-match of chuck inboard, so that rotatory body can only be followed predetermined direction and rotated.

8. The fixture of claim 1,

the outer surface of the anti-rotation chuck is provided with at least 4 bulges.

9. The fixture of claim 8,

the inner surface of the base is provided with a groove matched with the bulge on the outer surface of the anti-rotation chuck so as to prevent the anti-rotation chuck from rotating.

10. The fixture of claim 1,

the bottom end of the rotating body is provided with a rotating hole, so that a rotating tool can be inserted into the rotating hole to drive the rotating body to rotate.

11. The fixture of claim 1,

the outer surface of the base is provided with threads which are matched with the threads on the inner surface of the second opening;

the bottom of base is equipped with 4 at least unlocking holes to the unblock instrument passes the unlocking hole will prevent changeing chuck jack-up in order to unblock the direction of rotation of rotating the body.