CN214689110U - Quick-change locking module for quick-change power battery - Google Patents

Abstract

A quick-change locking module for a quick-change power battery comprises a locking shaft assembly and a locking groove, wherein the locking shaft assembly comprises an outer shell and a supporting base, a worm wheel and a driving worm are arranged in the outer shell, the driving worm is fixed at the upper end of the supporting base and is meshed with the worm wheel, a hanging seat is arranged above the outer shell, the locking groove is sleeved outside the hanging seat, a locking shaft penetrates through the center of the hanging seat, the lower end of the locking shaft is matched with the worm wheel to rotate, a locking nut is sleeved outside the locking shaft, a locking hole penetrates through the upper portion and the lower portion of a cover plate, and the locking nut is inserted into the locking hole; the utility model has the advantages that the power quick-change power battery is completely connected with the vehicle body and restrained through locking after hanging, and the power quick-change power battery is stable and reliable and has higher mechanical property; through the self-locking characteristic of the worm and the worm, the torque of the quick-change power battery connection is kept, and the abrasion caused by repeated connection is avoided; abnormal wear caused after the system is quickly replaced for many times can be controlled through the double screw rods, and quick power battery replacement action can be realized through adjustment of the span of the screw rods.

Description

Quick-change locking module for quick-change power battery

Technical Field

The utility model relates to an electric automobile field especially relates to a quick change locking module for quick change power battery.

Background

Mileage anxiety causes the quick change technology of electric automobile power battery to obtain quick development, and quick change structure has two kinds of implementation schemes on the market at present: a clamping type quick change and a bolt type quick change.

The function of quickly replacing the power battery pack is realized through the matching of a pin on the power battery box body and a groove on the quick-change bracket in the clamping quick-change manner; the bolt type quick change solves the problems of grabbing, screwing, torque force keeping and the like of the bolt by the quick change equipment through the redesign of the bolt, and the quick change of the battery pack is realized.

In the application process of the clamping type quick change, due to the existence of tolerance, a gap is inevitably formed between the pin of the battery box body and the groove of the quick change bracket, the connection of the battery pack is unstable due to the gap in the vibration process of the battery pack, and the battery pack continuously receives high-frequency impact and has poor mechanical property.

In addition, the unstable connection between the quick-change battery box of joint formula round pin and the groove of quick-change support leads to the battery package to wear greatly in the use.

The bolt type quick-change principle is that a battery pack is connected with a chassis through a bolt, the bolt and a chassis nut are seriously abraded due to the replacement of the battery pack, effective connection and torque maintenance cannot be achieved, a general automobile factory requires that a power battery quick-change structure needs to meet 10000 times of battery pack replacement, the bolt type quick-change structure can only meet 3000 times of battery pack replacement, the abrasion of the bolt and the chassis nut cannot be accepted, and a battery replacement platform needs to simultaneously screw dozens of bolts, so that the battery replacement time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick change locking module for quick change power battery.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a quick change locking module for quick change power battery, its characterized in that, locking module includes lock axle assembly and locked groove, lock axle assembly includes the shell body and the support base that connect gradually from top to bottom, be equipped with turbine and drive worm in the shell body, the drive worm is fixed in the upper end of supporting the base along the fore-and-aft direction, the screw thread of drive worm and the rack toothing of turbine side, the drive worm is rotatory at vertical direction drive turbine rotatory at the horizontal direction, the top of shell body is equipped with hangs the seat, the locked groove cup joints in the outside of hanging the seat, it runs through and is equipped with the lock axle to hang the central authorities of seat, the lower extreme and the turbine cooperation of lock axle are rotatory, lock nut is cup jointed in the outside of lock axle, the apron runs through from top to bottom and is equipped with the lockhole, lock nut inserts the lockhole setting.

Furthermore, a guide angle is arranged at an opening at one side of the lock groove, a locknut is sleeved at the upper end of the lock shaft, and the lock shaft is embedded into the center of the lock groove along the guide angle.

Furthermore, a thrust bearing is arranged below the turbine and sleeved on the outer side of the lock shaft.

Furthermore, the front end and the rear end of the driving worm are fixed on the upper end face of the supporting base through fixing seats.

Furthermore, the fixing seat is provided with a fastening bolt in a vertical penetrating manner, and the fixing seat is fixed on the upper end surface of the supporting base through the fastening bolt.

Further, the upper end of the outer shell is provided with a cover plate, and the lock shaft penetrates through the cover plate to rotate in a matched mode with the turbine.

The quick-change locking module of the utility model can completely restrict the connection between the power quick-change power battery and the vehicle body through locking after hanging, and is more stable and reliable and has higher mechanical property;

through the self-locking characteristic of the worm and the worm, the torque of the quick-change power battery connection is kept, and abrasion caused by repeated connection of threads and other connection modes is avoided;

abnormal wear caused after the system is quickly replaced for many times can be controlled through the double screw rods, and quick power battery replacement action can be realized through adjustment of the span of the screw rods.

Drawings

Fig. 1 is an exploded view of the quick-change locking module of the present invention;

fig. 2 to 4 are assembly views of the quick-change locking module in the embodiment of the present invention;

fig. 5 is an assembly view of the quick-change locking module of the present invention;

FIG. 6 is a diagram showing a quick-change power battery pair with a chassis;

FIG. 7 is a schematic view of a quick-change power battery system;

fig. 8 is an overall diagram of the quick-change power battery assembly.

Reference numerals:

1, locking a shaft assembly; 2, a power battery; 3, locking the groove; 4, a chassis of the whole vehicle;

11 supporting a base; 12 driving the worm; 13, fixing a base; 14 fastening bolts; 15 cover plate;

16 hanging seats; 17, a locknut; 18 a lock nut; 19 a turbine; a 110 thrust bearing;

111 lock the shaft.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a quick change locking module for quick change power battery, as shown in fig. 1 and 5, the locking module comprises a lock shaft assembly 1 and a lock groove 3, the lock shaft assembly 1 comprises an outer shell and a supporting base 11 which are sequentially connected from top to bottom, a turbine 19 and a driving worm 12 are arranged in the outer shell, the driving worm 12 is fixed at the upper end of the supporting base 11 along the front-back direction, the thread of the driving worm 12 is meshed with the rack on the side surface of the turbine 19, the driving worm 12 rotates in the vertical direction to drive the turbine 19 to rotate in the horizontal direction, a hanging seat 16 is arranged above the outer shell, the lock groove 3 is sleeved outside the hanging seat 16, a lock shaft 111 is arranged in the center of the hanging seat 16 in a penetrating manner, the lower end of the lock shaft 111 is matched with the turbine 19 to rotate, a locking nut 18 is sleeved outside the lock shaft 111, a lock hole is arranged in a penetrating manner above and below a cover plate 15, the locking nut 18 is inserted into the locking hole arrangement.

The front end and the rear end of the driving worm 12 are fixed on the upper end face of the supporting base 11 through fixing seats 13, fastening bolts 14 penetrate through the fixing seats 13 from top to bottom, and the fixing seats 13 are fixed on the upper end face of the supporting base 11 through the fastening bolts 14.

The opening of one side of locked groove 3 is equipped with the guide angle, locknut 17 is cup jointed to the upper end of lock axle 111, the lock axle is along the central authorities of guide angle embedding locked groove 3, the groove width of locked groove 3 is greater than the shaft diameter of lock axle, lock axle 111 gets into the in-process of locked groove 3, and the horizontal direction is not retrained.

A thrust bearing 110 is arranged below the turbine 19, and the thrust bearing 110 is sleeved on the outer side of the lock shaft 111.

When the quick-change locking module is specifically implemented, the quick change of the battery pack comprises the following steps:

step 1) referring to fig. 2, the locking shaft 111 is firstly pushed forward by the lifting device, so that the locking shaft 111 is clamped in the locking groove 3, at the moment, the hanging seat 16 locks the nut 18 at the lower position, and the shaft enters the groove without restriction in the height direction.

And 2) stopping lifting, wherein the size of the hanging seat 16 is far larger than that of the slot, the hanging seat 16 is hung in the lock slot 3, and the lock shaft 111 is not completely constrained at the moment and can be damaged by instability under stress.

Step 3), referring to fig. 3, the fastening nut of the hanging seat 16 is displaced upwards by driving the worm 12, the worm wheel 19 and the lock shaft 111 to rotate and cooperate, and the lock groove 3, the hanging seat 16 and the lock nut 18 are locked together under the action of force, so as to finally form the quick-change locking module assembly shown in fig. 4.

As shown in fig. 4, the lock shaft 111 has been fully constrained, and has stable and excellent mechanical properties under force.

As shown in fig. 6, 7 and 8, a plurality of lock shaft assemblies 1 are mounted on a lifting lug or a box body of a power battery pack, lock grooves 3 are mounted on a whole vehicle chassis 4 at corresponding positions to form a quick-change power battery assembly, and quick change of the battery pack can be completed through a lifter and a worm driving source.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. The utility model provides a quick change locking module for quick change power battery, its characterized in that, locking module includes lock axle assembly and locked groove, lock axle assembly includes the shell body that connects gradually from top to bottom and supports the base, be equipped with turbine and drive worm in the shell body, the drive worm is fixed in the upper end of supporting the base along the fore-and-aft direction, the screw thread of drive worm and the rack toothing of turbine side, the drive worm is rotatory at vertical direction and is driven the turbine and rotatory at the horizontal direction, the top of shell body is equipped with hangs the seat, the locked groove cup joints in the outside of hanging the seat, the central authorities of hanging the seat run through and are equipped with the lock axle, the lower extreme and the turbine cooperation of lock axle are rotatory, lock nut is cup jointed in the outside of lock axle, and the apron runs through from top to bottom and is equipped with the lockhole, lock nut inserts the setting.

2. The quick-change locking module for the quick-change power battery as claimed in claim 1, wherein a guide angle is provided at an opening at one side of the lock groove, a locknut is sleeved at an upper end of the lock shaft, and the lock shaft is embedded into the center of the lock groove along the guide angle.

3. The quick-change locking module for the quick-change power battery as claimed in claim 1, wherein a thrust bearing is arranged below the turbine, and the thrust bearing is sleeved on the outer side of the locking shaft.

4. The quick-change locking module for the quick-change power battery as claimed in claim 1, wherein the front end and the rear end of the driving worm are fixed on the upper end surface of the supporting base through fixing seats.

5. The quick-change locking module for the quick-change power battery as claimed in claim 4, wherein the fixing base is provided with a fastening bolt vertically penetrating therethrough, and the fixing base is fixed on the upper end surface of the supporting base through the fastening bolt.

6. The quick-change locking module for the quick-change power battery as claimed in claim 1, wherein a cover plate is arranged at the upper end of the outer housing, and the lock shaft passes through the cover plate and is matched with the turbine for rotation.

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