CN215204398U - Power battery package fixed knot constructs and includes its vehicle - Google Patents

Abstract

The utility model relates to an electric automobile technical field, concretely relates to power battery package fixed knot constructs and reaches vehicle including it. The power battery pack fixing structure comprises a floating lock seat mechanism at the fixed end of the vehicle body and a rotating locking mechanism at the end of the battery pack. The floating lock seat mechanism comprises a fixed limiting support and a floating lock seat. The fixed limiting support is connected to the vehicle body of the vehicle, the floating lock seat is embedded into the fixed limiting support, and the floating lock seat has a certain floating amount relative to the fixed limiting support, so that the assembly accumulated tolerance of a vehicle body end mounting point is eliminated. The rotary locking mechanism comprises a base and a rotary spring bolt mechanism, the base is fixedly connected with the power battery pack, the rotary spring bolt mechanism comprises a lock pin, the lower end of the lock pin is rotatably connected with the base, and the lock pin is rotated to enable the limiting block to be clamped on the floating lock seat. The self-locking structure of base cooperates the dismouting key of equipment end, and the self-locking structure of opening that can be quick, and then realizes the unblock/locking function of battery package/automobile body platform.

Description

Power battery package fixed knot constructs and includes its vehicle

Technical Field

The utility model relates to an electric automobile technical field, concretely relates to power battery package fixed knot constructs and reaches vehicle including it.

Background

The battery is disassembled and replaced with low efficiency in the prior art. A nut welding for fixing power battery package leads to the unable change of nut on the frame, and the fixed effect is not good for overuse. Accumulated tolerance of the power battery pack in the dismounting and replacing process causes inconvenience in replacement of the power battery pack and inaccurate positioning.

In view of the above problems, the inventor of the present invention has finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect, the utility model provides a power battery package fixed knot constructs and includes its vehicle can eliminate the battery package and tear the tolerance that the in-process is accumulational open and trade, realizes the quick assembly disassembly of power battery package.

The utility model discloses a technical scheme lie in:

in one aspect, a power battery pack fixing structure is provided, including: a floating lock seat mechanism and a rotary locking mechanism;

the floating lock seat mechanism comprises a fixed limiting support and a floating lock seat, the fixed limiting support is connected to the body of a vehicle, and a limiting structure is arranged on the fixed limiting support and forms a limiting space; the floating lock seat comprises a floating plate and a lock seat, the lock seat is connected to the floating plate, grooves penetrating through two sides are formed in the bottom surface of the lock seat, a first opening is formed in the floating plate and located below the grooves, the floating plate is embedded into the limiting space, the position of the floating lock seat is limited in the limiting space, a second opening is formed in the fixed limiting support, and the second opening is located below the first opening;

the rotary locking mechanism comprises a base and a rotary lock tongue mechanism, the base is fixedly connected with the power battery pack, the rotary lock tongue mechanism comprises a lock pin, the lower end of the lock pin is rotatably connected with the base, and a radially protruding limiting block is arranged at the upper end of the lock pin;

a limiting block at the upper end of the lock pin sequentially passes through the second opening and the first opening to enter the groove, and the lock pin is rotated to enable the limiting block to be clamped between the floating plate and the top surface of the groove;

the floating plate has a certain displacement in the limit space.

Further, the base comprises a connecting plate and a limiting sleeve, the limiting sleeve is fixedly connected with the connecting plate, the connecting plate is fixedly connected with the power battery pack, a lock pin mounting through hole is formed in the limiting sleeve, a plurality of notches are evenly formed in the circumferential direction of the lower portion of the lock pin, a limiting hole is formed in the position, corresponding to the notches, of the side wall of the lock pin mounting through hole, a limiting spring and a limiting pin are arranged in the limiting hole, the lower portion of the lock pin is arranged in the lock pin mounting through hole, and the limiting pin is clamped into the notches of the lock pin under the action of the limiting spring, so that the circumferential position of the lock pin is fixed.

Furthermore, a key hole is formed in the bottom of the lock pin, and the notch is communicated with the key hole;

the power battery pack fixing structure further comprises a dismounting key, the dismounting key comprises a rod body, the outer diameter of the rod body is matched with the key hole, a plurality of bulges are arranged on the periphery of the rod body, and the positions of the bulges correspond to the positions of the notches;

the disassembling and assembling key is installed in the key hole through the lock pin installation through hole, the bulge is correspondingly clamped into the notch, the limiting pin is ejected out, and the lock pin can rotate.

Further, the number of the notches is 4, and the notches are arranged at intervals of 90 degrees along the circumferential direction of the lock pin.

The locking device further comprises a ball gasket and a lower blocking cover, wherein balls are arranged on the upper end face of the ball gasket, and through holes for the locking pins to pass through are formed in the ball gasket and the lower blocking cover;

the lock pin mounting through hole is two sections of stepped holes, the diameter of the upper section of hole is smaller than that of the lower section of hole, and the limiting hole is arranged on the inner wall of the upper section of hole;

the periphery of the lower portion of the lock pin is provided with a clamping ring, the clamping ring is clamped and fixed on the top surface of the lower section hole, the ball gasket is installed on the lower end face of the clamping ring in an attaching mode, and the ball gasket and the clamping ring are packaged in the lower section hole through the lower blocking cover.

Furthermore, the power battery pack fixing structure further comprises a packaging barrel, the limiting hole is a radial through hole, and the packaging barrel is sleeved outside the limiting sleeve and seals an outer port of the limiting hole.

Furthermore, the diameter of the inner port of the limiting hole is reduced, a flange is arranged at one end of the limiting pin, the pin body of the limiting pin can penetrate through the inner port of the limiting hole, the flange end is limited in the limiting hole by the inner port of the limiting hole, and the limiting spring is located between the packaging barrel and the limiting pin in the limiting hole.

Furthermore, a through groove is formed in the periphery of the upper end of the lock pin, a first threaded hole is formed in the top surface of the lock pin, a second threaded hole is formed in the middle of the limiting block, the first threaded hole is communicated with the through groove, the limiting block penetrates through the through groove, and a bolt penetrates through the first threaded hole and is in threaded connection with the second threaded hole, so that the limiting block is fixed.

Further, the power battery pack fixing structure further comprises a vehicle body fixing support, the vehicle body fixing support is fixed on a vehicle body of a vehicle, a groove is formed in the vehicle body fixing support, the floating lock seat mechanism is fixed in the groove, a third opening is formed in the bottom of the groove, and the position of the third opening corresponds to the position of the second opening.

In another aspect, a vehicle is provided, which includes a power battery pack, and the power battery pack is fixed on the vehicle body by the above-mentioned power battery pack fixing structure.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses a power battery package fixed knot constructs can effectively realize changing the connection and the dismantlement of electric process fast between battery package and the automobile body platform;

2. the utility model discloses an integrated self-locking function of power battery package fixed knot constructs for be connected between battery package and the automobile body more effectively and stably.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic view of a power battery pack fixing structure according to an embodiment of the present invention;

fig. 2 shows an exploded schematic view of a floating lock bracket mechanism and a vehicle body mount bracket of an embodiment of the present invention;

FIG. 3 illustrates an exploded schematic view of a rotary locking mechanism of an embodiment of the present invention;

fig. 4 shows a cross-sectional view of a power battery pack fixing structure according to an embodiment of the present invention.

Detailed Description

The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, in the present embodiment, the power battery pack fixing structure includes a floating latch mechanism at the vehicle body fixing end and a rotation locking mechanism at the battery pack end. The floating lock seat mechanism 1 comprises a fixed limit bracket 11 and a floating lock seat 12. The fixed limiting support 11 is connected to a vehicle body 100 of a vehicle, the floating lock seat 12 is embedded into the fixed limiting support 11, and the floating lock seat 12 has a certain floating amount relative to the fixed limiting support 11, so that the problem of assembly accumulated tolerance of a vehicle body end mounting point is solved, the accumulated tolerance is different according to different equipment characteristics and different part/assembly processes, and accurate connection of the floating positioning mechanism connected with the electric machine is achieved. The assembly accumulated tolerance is calculated through a vehicle body end dimension chain. The rotary locking mechanism 2 comprises a base 21 and a rotary locking bolt mechanism, the base 21 is fixedly connected with the power battery pack 200, the rotary locking bolt mechanism comprises a lock pin 23, the lower end of the lock pin 23 is rotatably connected with the base 21, and the upper end of the lock pin 21 is provided with a radially protruding limiting block 231. The lock pin 23 is rotated to make the stopper 231 be snapped on the floating lock holder 12.

Specifically, the fixed limit bracket 11 is provided with a limit structure 112, and the limit structure 112 forms a limit space. The floating lock seat 12 comprises a floating plate 121 and a lock seat 122, the lock seat 122 is connected to the floating plate 121, a groove 1221 penetrating through two sides is formed in the bottom surface of the lock seat 122, a first opening 1211 is formed in the floating plate 121, the first opening 1211 is located below the groove 1221, the floating plate 121 is embedded into a limiting space, the position of the floating lock seat 12 is limited in the limiting space, a second opening 111 is formed in the fixed limiting support 11, and the second opening 111 is located below the first opening 1211. The limiting block 231 at the upper end of the lock pin 23 sequentially passes through the second opening 111 and the first opening 1211 to enter the groove 1221, and the lock pin 23 is rotated to enable the limiting block 231 to be clamped between the floating plate 121 and the top surface of the groove 1221. The battery pack can be effectively connected and detached with the vehicle body platform in the quick battery replacement process. The floating plate 121 has a certain displacement amount in the stopper space. The limiting structure 112 at the top of the limiting space is provided with an opening, the lock seat 122 passes through the opening, and the displacement amount of the floating plate 121 in the limiting space is limited by the size of the opening on the limiting structure 112.

Optionally, the power battery pack fixing structure further includes a vehicle body fixing support 3, the vehicle body fixing support is fixed on a vehicle body 100 of the vehicle, a groove 31 is formed in the vehicle body fixing support, the floating lock seat mechanism 1 is fixed in the groove 31, a third opening 311 is formed in the bottom of the groove 31, and the position of the third opening 311 corresponds to the position of the second opening 111.

Optionally, a through groove is formed in the periphery of the upper end of the lock pin 23, a first threaded hole is formed in the top surface of the lock pin 23, a second threaded hole is formed in the middle of the limiting block 231, the first threaded hole is communicated with the through groove, the limiting block 231 penetrates through the through groove, and a bolt 232 penetrates through the first threaded hole and is in threaded connection with the second threaded hole, so that the limiting block 231 is fixed. The detachable structure of the limiting block enables the limiting block 231 to be conveniently replaced, and the connection reliability between the battery pack and the vehicle body is guaranteed.

In a preferred embodiment, the base 21 includes a connection plate 211 and a limit sleeve 22, the limit sleeve 22 is fixedly connected to the connection plate 211, the connection plate 211 is fixedly connected to the power battery pack 200, a lock pin installation through hole is formed in the limit sleeve 22, a plurality of notches 234 are uniformly formed in the circumferential direction of the lower portion of the lock pin 23, a limit hole 221 is formed in a position, corresponding to the notches 234, of the side wall of the lock pin installation through hole, a limit spring 251 and a limit pin 25 are arranged in the limit hole 221, the lower portion of the lock pin 23 is installed in the lock pin installation through hole, and the limit pin 25 is clamped into the notches 234 of the lock pin 23 under the action of the limit spring 251, so that the lock pin 23 cannot rotate, that is, the circumferential position is fixed. Through "lock core formula" structural design, make power battery package fixed knot construct have self-locking function, and then make the connection between battery package and the automobile body more effective and stable.

More specifically, the power battery pack fixing structure further includes a packaging barrel 24, the limiting hole 221 is a radial through hole, and the packaging barrel 24 is sleeved outside the limiting sleeve 24 to seal an outer port of the limiting hole 221. The diameter of the inner port of the limiting hole 221 is reduced, one end of the limiting pin 25 is provided with a flange, the pin body of the limiting pin can penetrate through the inner port of the limiting hole, the flange end is limited in the limiting hole 221 by the inner port of the limiting hole 221, and the limiting spring 251 is positioned between the packaging barrel 24 and the limiting pin 25 in the limiting hole 221. During assembly, the limiting spring 251 and the limiting pin 25 are installed from the outer port of the limiting hole 221 and then sealed through the packaging barrel 24, so that the limiting spring 251 and the limiting pin 25 are convenient to install and detach, and the self-locking structure is stable and reliable.

Preferably, there are 4 notches 234 spaced 90 degrees apart around the circumference of the locking pin 23. Accordingly, the stopper hole 221, the stopper spring 251, and the stopper pin 25 are each 4.

In a more preferred embodiment, the bottom of the locking pin 23 is provided with a keyhole, and the notch 234 is in communication with the keyhole. The power battery pack fixing structure further comprises a dismounting key 4, the dismounting key 4 comprises a rod body, the outer diameter of the rod body is matched with the key hole, a plurality of bulges are arranged on the periphery of the rod body, and the positions of the bulges correspond to the positions of the notches 234. The dismounting key 4 is arranged in the keyhole through the lock pin mounting through hole, the bulge is correspondingly clamped in the notch, and the limit pin 25 is ejected out, so that the lock pin 23 can rotate. The 'lock cylinder type' structural design of battery package end cooperates the adaptation structure (dismouting key) of equipment end, and auto-lock structure is opened that can be quick, and then realizes the unblock/locking function of battery package automobile body platform. When the dismounting key 4 is inserted into or withdrawn from the corresponding position in the lock pin 23, the limiting spring 251 is pressed and released, so that the limiting pin 25 is clamped or clamped out of the notch 234 of the lock pin 23, the rotation of the battery pack end lock pin 23 is limited or allowed, and the locking and unlocking functions are achieved.

In a more preferred embodiment, the power battery pack fixing structure further includes a ball gasket 26 and a lower cap 27, the ball 261 is mounted on the upper end surface of the ball gasket 26, and through holes for the lock pins to pass through are formed in both the ball gasket 26 and the lower cap 27. The lock pin mounting through hole is two sections of stepped holes, the diameter of the upper section hole is smaller than that of the lower section hole, and the limiting hole 221 is arranged on the inner wall of the upper section hole. The periphery of the lower part of the lock pin 23 is provided with a snap ring 233, the snap ring 233 is clamped and fixed on the top surface of the lower section hole, the ball gasket 26 is attached and installed on the lower end surface of the snap ring 234, and the lower blanking cover 27 encapsulates the ball gasket 26 and the snap ring 233 in the lower section hole. The lock pin 23 and the limiting block 231 are driven to rotate by disassembling and assembling the key 4. Meanwhile, under the combined action of the floating lock seat mechanism and the rotary locking mechanism, the locking connection function is achieved.

The specific installation steps of the battery pack are as follows:

1. firstly, the battery pack is placed into the mounting equipment, the dismounting key 4 is inserted into the lock pin 23 of the battery pack, and the limiting pin 25 is ejected out of the lock pin 23 under the action of the dismounting key 4, so that the lock pin 23 is allowed to rotate.

2. The device pushes up the battery pack and the dismounting key 4 at the same time, and after the device reaches a specified stroke position, the limiting pin 25 is sent into the floating lock seat mechanism.

3. At this time, the dismounting key 4 is rotated to drive the lock pin 23 and the limit pin 25 to rotate by 90 degrees, so that the limit block 231 is clamped on the floating lock seat 12.

4. The disassembling and assembling key 4 is withdrawn, the limiting pin 25 is restored to the original position under the action of the limiting spring 251, and at the moment, the limiting pin 25 is jacked into the clamping groove of the lock pin 23, so that the lock pin 23 is limited to rotate. A quick installation process is now completed.

From the above description, those skilled in the art can conceive of a vehicle including such a power battery pack fixing structure. The battery pack and the vehicle body platform can be connected and detached quickly and effectively in the battery replacing process through the power battery pack fixing structure, quick and integral replacement or flexible replacement of all independent spare and accessory parts can be realized, and the maintenance difficulty is reduced.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative, not limiting. The utility model discloses in all can change to some extent structure and connected mode etc. of each part all be in the utility model discloses equal transform and the improvement of going on technical scheme's the basis all should not get rid of the utility model discloses an outside the protection scope.

Claims (10)

1. A power battery package fixed knot constructs which characterized in that includes: a floating lock seat mechanism and a rotary locking mechanism;

the floating lock seat mechanism comprises a fixed limiting support and a floating lock seat, the fixed limiting support is connected to the body of a vehicle, and a limiting structure is arranged on the fixed limiting support and forms a limiting space; the floating lock seat comprises a floating plate and a lock seat, the lock seat is connected to the floating plate, grooves penetrating through two sides are formed in the bottom surface of the lock seat, a first opening is formed in the floating plate and located below the grooves, the floating plate is embedded into the limiting space, the position of the floating lock seat is limited in the limiting space, a second opening is formed in the fixed limiting support, and the second opening is located below the first opening;

the rotary locking mechanism comprises a base and a rotary lock tongue mechanism, the base is fixedly connected with the power battery pack, the rotary lock tongue mechanism comprises a lock pin, the lower end of the lock pin is rotatably connected with the base, and a radially protruding limiting block is arranged at the upper end of the lock pin;

a limiting block at the upper end of the lock pin sequentially passes through the second opening and the first opening to enter the groove, and the lock pin is rotated to enable the limiting block to be clamped between the floating plate and the top surface of the groove;

the floating plate has a certain displacement in the limit space.

2. The power battery pack fixing structure according to claim 1, wherein the base includes a connecting plate and a limiting sleeve, the limiting sleeve is fixedly connected with the connecting plate, the connecting plate is fixedly connected with the power battery pack, the limiting sleeve is provided with a lock pin mounting through hole, a plurality of notches are uniformly formed in the circumferential direction of the lower portion of the lock pin, a limiting hole is formed in a position, corresponding to the notches, on the side wall of the lock pin mounting through hole, a limiting spring and a limiting pin are arranged in the limiting hole, the lower portion of the lock pin is installed in the lock pin mounting through hole, and the limiting pin is clamped into the notches of the lock pin under the action of the limiting spring, so that the circumferential position of the lock pin is fixed.

3. The power battery pack fixing structure according to claim 2, wherein a key hole is formed at the bottom of the lock pin, and the notch communicates with the key hole;

the power battery pack fixing structure further comprises a dismounting key, the dismounting key comprises a rod body, the outer diameter of the rod body is matched with the key hole, a plurality of bulges are arranged on the periphery of the rod body, and the positions of the bulges correspond to the positions of the notches;

the disassembling and assembling key is installed in the key hole through the lock pin installation through hole, the bulge is correspondingly clamped into the notch, the limiting pin is ejected out, and the lock pin can rotate.

4. The power battery pack fixing structure according to claim 3, wherein the number of the notches is 4, and the notches are arranged at intervals of 90 degrees in the circumferential direction of the lock pin.

5. The power battery pack fixing structure according to claim 3, further comprising a ball gasket and a lower plug cover, wherein balls are mounted on the upper end face of the ball gasket, and through holes for the lock pins to pass through are formed in the ball gasket and the lower plug cover;

the lock pin mounting through hole is two sections of stepped holes, the diameter of the upper section of hole is smaller than that of the lower section of hole, and the limiting hole is arranged on the inner wall of the upper section of hole;

the periphery of the lower portion of the lock pin is provided with a clamping ring, the clamping ring is clamped and fixed on the top surface of the lower section hole, the ball gasket is installed on the lower end face of the clamping ring in an attaching mode, and the ball gasket and the clamping ring are packaged in the lower section hole through the lower blocking cover.

6. The power battery pack fixing structure according to claim 5, further comprising a packaging barrel, wherein the limiting hole is a radial through hole, and the packaging barrel is sleeved outside the limiting sleeve to seal an outer port of the limiting hole.

7. The power battery pack fixing structure according to claim 6, wherein the inner port of the stopper hole has a reduced diameter, one end of the stopper pin has a flange, the pin body of the stopper pin can pass through the inner port of the stopper hole, the flange end is retained in the stopper hole by the inner port of the stopper hole, and the stopper spring is located in the stopper hole between the package tube and the stopper pin.

8. The power battery pack fixing structure according to any one of claims 1 to 7, wherein a through groove is formed on an upper end periphery side of the lock pin, a first threaded hole is formed in a top surface of the lock pin, a second threaded hole is formed in a middle portion of the stopper, the first threaded hole communicates with the through groove, the stopper passes through the through groove, and a bolt passes through the first threaded hole and is in threaded connection with the second threaded hole, so that the stopper is fixed.

9. The power battery pack fixing structure according to any one of claims 1 to 7, further comprising a vehicle body fixing bracket fixed to a vehicle body of a vehicle, wherein a groove is formed in the vehicle body fixing bracket, the floating lock seat mechanism is fixed in the groove, a third opening is formed in a bottom of the groove, and a position of the third opening corresponds to a position of the second opening.

10. A vehicle characterized by comprising a power battery pack fixed to a vehicle body by the power battery pack fixing structure according to any one of claims 1 to 9.

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