CN111086379A - Quick locking and unlocking device for vehicle-mounted power battery box - Google Patents
Quick locking and unlocking device for vehicle-mounted power battery box Download PDFInfo
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- CN111086379A CN111086379A CN202010065973.9A CN202010065973A CN111086379A CN 111086379 A CN111086379 A CN 111086379A CN 202010065973 A CN202010065973 A CN 202010065973A CN 111086379 A CN111086379 A CN 111086379A
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- battery box
- rocker
- locking
- bolt
- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a quick locking and unlocking device for a vehicle-mounted power battery box, which comprises a battery box base (2). The battery box base (2) is provided with a battery box (1) and a locking mechanism. The locking mechanism comprises a rocker (3), a rocker moving block (7), a longitudinal rod (10) and a battery box baffle. The rocker (3) is rotatably connected with the battery box base (2). The rocking rod (3) is sleeved with a rocking rod moving block (7) and is arranged into a rotating pair and a moving pair, the rocking rod moving block (7) is rotatably connected with the longitudinal rod (10), and the longitudinal rod (10) is rotatably connected with the battery box baffle. The battery box base (2) is also provided with a locking mechanism, and the locking mechanism locks the rocker through the lock tongue to prevent the locking mechanism from unlocking automatically. The locking mechanism can quickly lock and unlock the battery box, the locking mechanism only needs to rotate the rocker for locking and unlocking the battery box, and the locking mechanism only needs to push and pull the locking push rod for locking and unlocking the rocker.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a quick locking and unlocking device for a vehicle-mounted power battery box.
Background
The new energy automobile has the technical advantages of energy conservation, environmental protection and the like, and the demand on fuel is greatly reduced, so that the new energy automobile becomes the development trend of future automobiles. The battery serving as one of the core components of the electric automobile can effectively solve the technical problems of battery charging, installation, maintenance and the like if the battery box can be quickly and reliably locked and unlocked. Some current battery box locking mechanisms are simple in structure, but easily result in the locking or locking unreliable, and other locking mechanisms are too complicated because of the structure, although reliable locking can be realized, locking and unlocking processes are tedious, consume a long time, and are very unfavorable for the battery replacement operation of an electric automobile.
Chinese utility model patent with patent number zl201420554999.x discloses a battery box locking mechanism and battery box. Battery box locking mechanism, including the casing that is used for with the tank wall fixed connection of battery box, sliding assembly has the locking lever of extending about on the casing, the locking lever have be used for with battery compartment on the lockhole complex bolt end, rotate on the casing and be equipped with the gear that is used for driving the locking lever and removes, the rotation axis of gear extends around, the one end of keeping away from the bolt end on the locking lever sets firmly or an organic whole is equipped with the rack with gear engagement. When the battery box locking mechanism is used, the rotating motion of the gear can be converted into the left and right linear sliding motion of the lock rod through the meshing and matching of the gear and the rack, when the bolt end of the lock rod is inserted into the lock hole of the battery compartment, the battery box is tightly matched with the battery compartment, and when the bolt end of the lock rod is pulled out from the lock hole of the battery compartment, the battery box is unlocked with the battery compartment. The utility model discloses a battery box locking mechanism has simple structure and the advantage of being convenient for installation. However the utility model discloses a lockhole that inserts the battery compartment through the bolt locks, and the lockhole diameter must be bigger than the bolt diameter, otherwise can cause the bolt to insert not advance the lockhole because of assembly and machining error, must be bigger than the bolt because of the lockhole diameter, cause the bolt to exist the clearance in the lockhole, this can lead to the battery box not locked, and the battery box can produce the drunkenness of making a round trip when electric automobile jolts for a long time, and power line plug department can produce and draw the arc phenomenon, leads to producing welding phenomenon between plug and the socket. In addition, the locking mechanism limits only one degree of freedom of the battery case, i.e., the degree of freedom in the front-rear direction, and locking reliability is not good, and improvement is still required.
Chinese utility model patent No. ZL201720853350.1 discloses an electric automobile and battery box locking mechanism thereof. The battery box locking mechanism comprises a battery compartment with a sealed top and an open bottom, the opening at the bottom of the battery compartment is a loading and unloading opening for the battery box to be pushed into by a hydraulic lifting device, two opposite sides of the loading and unloading opening are provided with two symmetrically-arranged jacking inclined irons and two box walls which are positioned on the back of the two jacking inclined irons, the two jacking inclined irons are provided with inclined planes which are gradually inclined downwards from the far side to the near side, at least one of the two jacking inclined irons is a movable inclined iron which can be pulled and inserted to move along the opposite and back-to-back directions, and the movable inclined iron is in transmission connection with a driving device which can push and pull the output straight line of the movable inclined iron. With inclined plane complex mode, in the in-process that two tight wedges in top closed and push up tight battery box in opposite directions, simultaneously with battery box jack-up upwards and realize at upper and lower and horizontal direction's constraint, guarantee that the battery box can not beat for the automobile body to the problem of battery box jolting and beating from top to bottom along with the automobile body among the prior art has been solved. However, most of the gravity and jolt impact force of the battery box in the utility model are directly applied to the roller, and the requirement on the strength of the roller shaft is higher. Meanwhile, the degree of freedom of the battery box in the left and right directions is not limited, the degree of freedom in the left and right directions is limited only by the friction force between the inclined surface and the battery box roller, and when the electric automobile makes a sharp turn or is impacted by a side surface, the battery box is easy to slide in the left and right directions, so that the connector is worn or broken. Thus, improvements are still needed.
Disclosure of Invention
In order to solve the technical defects of the conventional battery box locking mechanism and a battery box assembly of a passenger vehicle, the invention provides a quick locking and unlocking device for a vehicle-mounted power battery box, which comprises a battery box base, wherein the battery box and the locking mechanism are arranged on the battery box base, the locking mechanism comprises a rocker, a rocker moving block, a longitudinal rod and a battery box baffle, the rocker is rotatably connected with the battery box base, the rocker is sleeved with the rocker moving block and is arranged into a rotating pair and a moving pair, the rocker moving block is rotatably connected with the longitudinal rod, and the longitudinal rod is rotatably connected with the battery box baffle.
When the battery box is locked, the rocker is rotated and drives the rocker moving block to move towards the direction close to the battery box, and meanwhile, the battery box baffle is driven to move towards the direction close to the battery box, so that the battery box is locked.
Preferably, the rocker is provided with a groove, the battery box base is provided with a locking mechanism, the locking mechanism comprises a locking push rod, a lock tongue assembly, a lock tongue spring and a lock tongue sleeve, the lock tongue assembly comprises a lock tongue and a lock tongue rod, and the lock tongue is sleeved with the lock tongue spring and is assembled in the lock tongue sleeve in a sliding manner.
The locking mechanism is used for preventing the locking mechanism from being automatically unlocked in a vehicle-mounted vibration environment.
In any of the above schemes, preferably, after the battery box is locked, the anti-loosening push rod is pushed inwards to drive the bolt sleeve to move downwards, and when the bolt sleeve moves downwards, the bolt also moves downwards until being inserted into the groove to limit the rotation of the rocker, so that the anti-loosening purpose is achieved.
In any of the above schemes, preferably, the anti-loose push rod is connected with the battery box base through a first elastic element to prevent the anti-loose mechanism from being automatically unlocked, so as to further increase the reliability of the locking mechanism, and the anti-loose push rod is always under the action of the elastic pulling force of the first elastic element, so as to ensure that the anti-loose push rod is not pushed out due to external factors such as vibration of a vehicle body.
In any of the above schemes, preferably, the anti-loosening push rod is provided with a first shaft shoulder, and an inner end surface of the first shaft shoulder abuts against an outer end surface of a fourth hole of the battery box base under the action of elastic force, so that axial positioning is realized.
In any of the above schemes, preferably, the first elastic element is an extension spring, one end of the extension spring is connected to the first connection structure of the anti-loosening push rod, and the other end of the extension spring is connected to the second connection structure of the battery box base.
In any of the above schemes, preferably, a pair of steel balls and a steel ball spring are installed inside the anti-loosening push rod, and the steel ball spring is set in a compressed state and is used for applying an outward elastic force to the steel balls.
When the anti-loosening mechanism is in a locking state, the steel balls are subjected to the action of the inner wall of the fourth hole, overcome the spring force and retract into the anti-loosening push rod; however, when the anti-loosening push rod is pulled out to release the anti-loosening function, the steel balls can be exposed under the action of spring force, and even if the pulling force disappears, the anti-loosening push rod cannot be pulled in backwards due to the pulling force of the extension spring and the lock tongue is inserted into the groove of the rocker to influence the rotation of the rocker due to the fact that the steel balls are exposed outwards and abut against the outer end face of the fourth hole in the base of the battery box.
In any of the above schemes, preferably, a rocker moving block guiding structure is arranged on the battery box base and used for guiding the translational motion of the rocker moving block.
In any of the above aspects, preferably, the longitudinal rod is in running fit with the rocker moving block through a longitudinal rod pin.
In any of the above aspects, preferably, the longitudinal rod is provided with a structure which forms a rotating fit with the battery box baffle.
In any of the above schemes, preferably, the battery box is provided with a structure for the baffle of the battery box to abut against.
In any of the above solutions, it is preferable that the longitudinal rod is provided with a rotation limiting member, the rotation of the longitudinal rod is determined to be limited by adjusting the position of the rotation limiting member, one end of the rotation limiting member is connected with a steel cable, the other end of the steel cable is fixedly connected with the battery box base, and the rotation limiting member is connected with a second elastic element.
In any of the above schemes, preferably, the rotation-limiting member is a stop pin, the steel rope is connected to an inner end of the stop pin, the battery box base is provided with a connecting member, and the stop pin is provided with the second elastic element for applying an elastic force to the stop pin.
The second elastic element is used for preventing the longitudinal rod from blocking the stop pin to prevent the stop pin from being ejected, and the stop pin is made to be in a position which does not block the ejection of the stop pin before the stop pin is ejected by applying elastic force to the stop pin.
In any of the above schemes, preferably, the second elastic element is a compression spring, one end surface of the compression spring abuts against the inner end surface of the large cylindrical section of the stop pin, and the other end surface of the compression spring abuts against the bottom surface of the inner cylindrical hole of the rocker moving block.
In any one of the above schemes, preferably, the stop pin includes a discharge section, and the discharge section is configured to have a non-cylindrical structure so as to avoid the stop pin from contacting with a line surface of the longitudinal rod when the discharge section is cylindrical.
In any of the above aspects, preferably, the non-cylindrical structure is in a semi-cylindrical shape, and when the stop pin is ejected, the first plane of the stop pin abuts against the second plane of the longitudinal rod, so that the linear-surface contact is converted into the surface-surface contact, and the abrasion is reduced.
In any of the above schemes, preferably, the second elastic element is a torsion spring, the torsion spring is sleeved on the longitudinal rod pin, a first protruding section at one end of the torsion spring is clamped in the first groove of the longitudinal rod, and a second protruding section at the other end of the torsion spring is clamped in the second groove of the rocker moving block. Under the action of the torsion spring, the longitudinal rod is in a vertical state under the action of no other force, so that the situation that the longitudinal rod blocks the stop pin to cause the stop pin to be incapable of being ejected from the rocker moving block is avoided.
In any of the above schemes, preferably, two rocker mounting seats are arranged on the battery box base, a first hole and a second hole are respectively formed in the two rocker mounting seats, the rockers are inserted into the first hole and the second hole, a second shaft shoulder is arranged on the rockers, the inner end face of the second shaft shoulder abuts against the outer end face of the first hole, a conical pin hole is formed in the tail of each rocker, a rocker limiting ring is sleeved on the tail of each rocker, a conical pin is inserted into the rocker limiting ring and the rocker, and the outer end face of the rocker limiting ring abuts against the inner end face of the second hole and is used for axially positioning the rocker.
In any of the above schemes, preferably, the rocker is detachable, the detachable structure is a rocker handle, that is, when locking or unlocking is required, the rocker handle is sleeved on the rocker, the rocker handle is rotated to drive the rocker to rotate, and when locking or unlocking is finished, the rocker handle is taken down from the rocker so as to save space in the battery compartment.
In any of the above schemes, preferably, the detachable structure adopts a battery replacement robot.
In any of the above schemes, preferably, the rocker is provided with an outer trapezoidal thread, the rocker moving block is provided with an inner trapezoidal thread, and the outer trapezoidal thread is matched with the inner trapezoidal thread.
The trapezoidal threads can meet self-locking conditions, when the thread lead angle of the trapezoidal threads is smaller than the equivalent friction angle, the rocking rod moving block can only be driven by the rocking rod, but the rocking rod cannot be driven by the rocking rod moving block, so that the situation that the impact force of the battery box is transmitted to the rocking rod moving block and then the rocking rod rotates under the action of the impact force to unlock the battery box in the locking process is avoided.
In any of the above schemes, preferably, a longitudinal rod is respectively installed on each of two sides of the rocker moving block, the longitudinal rod is rotatably connected with the rocker moving block through the longitudinal rod pin, a cylindrical structure is arranged at the lower end of the longitudinal rod, a third hole is formed in the battery box baffle, and the cylindrical structure is matched with the third hole and is rotatably connected with the third hole.
In any of the above embodiments, preferably, a slope is provided on each of the left and right sides of the upper portion of the front end of the battery box.
When the battery box is locked, the rocker handle is rotated towards the locking direction to drive the whole locking mechanism to move towards the direction close to the battery box, the battery box baffle plate starts to rotate when contacting the inclined plane, and the battery box baffle plate also continues to rotate until the bottom surface of the battery box baffle plate is completely attached to the inclined plane along with the movement of the locking mechanism in the direction close to the battery box, so that the battery box is locked.
In any of the above schemes, preferably, a stop pin is inserted in the rocker moving block, and when the rocker moving block moves towards the direction of locking the battery box, the stop pin is ejected outwards to limit the rotation of the longitudinal rod.
Compared with the prior art, the invention has the beneficial effects that: have simple structure under the prerequisite of guaranteeing the reliable stable locking of battery box, locking and the convenient quick technical advantage of unblock, locking mechanism not only easy and simple to handle and easy realization automation more, locking mechanism only need to rotate the rocker to the locking and the unblock of battery box can, locking mechanism also only need to promote and stimulate locking push rod can to the locking and the unblock of rocker.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of a vehicle power battery box quick locking and unlocking apparatus according to the present invention.
Fig. 2 is a front view of the vehicle power battery pack quick locking and unlocking apparatus according to the embodiment of fig. 1, in which the battery pack is in a locked state.
Fig. 3 is a front view of the vehicle power battery box quick locking and unlocking device according to the embodiment of fig. 1, in an unlocked state.
Fig. 4 is an exploded view schematically illustrating a locking mechanism of the vehicle-mounted power battery box quick locking and unlocking device according to a preferred embodiment of the present invention.
Fig. 5 is a block diagram of a preferred embodiment of a battery box base of the vehicle-mounted power battery box quick locking and unlocking device according to the present invention.
Fig. 6 is an exploded view schematically illustrating a preferred embodiment of the anti-loosening mechanism of the quick locking and unlocking device for the vehicle-mounted power battery box according to the present invention.
Fig. 7 is an assembly structure diagram of the anti-loose mechanism of the vehicle-mounted power battery box quick locking and unlocking device in the embodiment shown in fig. 6.
Fig. 8 is a partially enlarged schematic view of a preferred embodiment of the locking mechanism of the quick locking and unlocking device for the vehicle-mounted power battery box in the unlocked state.
Fig. 9 is a partial schematic view of the cable position of the embodiment of fig. 8 of the vehicle power battery box quick locking and unlocking device according to the present invention in the locked state of the battery box.
Fig. 10 is a partial schematic view of the cable position of the embodiment of fig. 1 of the vehicle power battery box quick locking and unlocking device according to the present invention in an unlocked state of the battery box.
Description of reference numerals:
1, a battery box; 101 an inclined plane; 2, a battery box base; 201 a first aperture; 202 a second aperture; 203 fourth hole; 204 connecting piece; 205 a second connection structure; 206 a first guide groove; 207 a second guide groove; 3, a rocker; 301 shaft shoulder; 302 a conical pin hole; 304 external trapezoidal threads; 304 grooves; 4 a rocker handle; 5, a rocker limiting ring; 501 outer end surface; 6, a taper pin; 7 rocker moving blocks; 8, a torsion spring; 10 longitudinal bars; 1001 cylindrical structure; 1002 plane of the longitudinal bar; 1002 a second plane; 1003 a first groove; 12 a longitudinal bar pin; 13, a stop pin; 1301 the inner end of the stop pin; 1301 structure; 1302 inner end surface of the large cylindrical section; 1303 a first plane; 1304 an end face; 14 a compression spring; 1401 a first extension; 1402 second protruding section; 15 steel ropes; 16 battery box baffles; 1601 a third hole; 1602 sides; 1602 plane of battery box baffle; 17 a locking push rod; 1701 looseness-proof push rod shaft shoulder; 1702 a first connection structure; 18 an extension spring; 19 a latch bolt; 1901 internal threads; 1902 an upper end surface; 20 a deadbolt spring; 21 a bolt sleeve; 2101 inner end faces; 2102 cylindrical hole bottom; 22 steel balls; 23 steel ball springs; 24 latch bar; 2401 external threads; 1101 a bottom surface; 1102 a second slot; 1103 a first top surface; 1104 a second top surface; 1105 a cylindrical bore; 3041 a vertical plane; 3042 a cambered surface.
Detailed Description
The following describes in detail a preferred technical solution of the quick locking and unlocking device of the vehicle-mounted power battery box with reference to fig. 1-10.
As shown in fig. 1, a quick locking and unlocking device for a vehicle-mounted power battery box comprises a battery box base 2, wherein the battery box base 2 is provided with a battery box 1 and a locking mechanism, the locking mechanism comprises a rocker 3, a rocker moving block 7, a longitudinal rod 10 and a battery box baffle, the rocker 3 is rotatably connected with the battery box base 2, the rocker 3 is sleeved with the rocker moving block 7 and is provided with a rotation pair and a movement pair, the rocker moving block 7 is rotatably connected with the longitudinal rod 10, and the longitudinal rod 10 is rotatably connected with the battery box baffle. The rocker 3 is provided with a groove 304.
As shown in fig. 4 and 5, two rocker mounting seats are arranged on the battery box base 2, the two rocker mounting seats are respectively provided with a first hole 201 and a second hole 202, the rocker 3 is inserted into the first hole 201 and the second hole 202, the rocker 3 is provided with a shaft shoulder 301, the inner end surface of the shaft shoulder 301 abuts against the outer end surface of the first hole 201, the tail part of the rocker 3 is provided with a conical pin hole 302 for inserting the conical pin 6, the tail part of the rocker 3 is sleeved with a rocker limiting ring 5, the conical pin 6 is inserted into the rocker limiting ring 5 and the rocker 3, and the outer end surface 501 of the rocker limiting ring 5 abuts against the inner end surface of the second hole 202 for axially positioning the rocker 3 on the battery box base 2.
As shown in fig. 4 and 5, the rocker 3 is provided with an outer trapezoidal thread 304, the rocker moving block 7 is provided with an inner trapezoidal thread, and the outer trapezoidal thread 304 is matched with the inner trapezoidal thread. The trapezoidal threads meet a self-locking condition, namely when the thread lead angle of the trapezoidal threads is smaller than the equivalent friction angle, in order to convert the rotary motion of the rocker 3 into the translational motion of the rocker moving block 11, the rocker moving block 11 can be guided, the battery box base 2 is provided with a first guide groove 206 and a second guide groove 207, a first top surface 1103 and a second top surface 1104 of the rocker moving block 11 respectively abut against the top surfaces of the first guide groove 206 and the second guide groove 207, and a left end surface and a right end surface of the rocker moving block 11 respectively abut against the side surfaces of the first guide groove 206 and the second guide groove 207. When the rocker 3 is rotated clockwise, the rocker moving block 11 moves in a direction approaching the battery box 1 along a straight line under the guiding action of the first guide groove 206 and the second guide groove 207; when the rocker 3 is rotated counterclockwise, the rocker moving block 11 moves in a straight line in a direction away from the battery box 1 by being guided by the first guide groove 206 and the second guide groove 207.
As shown in fig. 4, a longitudinal rod 10 is respectively installed on the left side and the right side of the rocker moving block 7, the longitudinal rod 10 is rotatably connected with the rocker moving block 7 through a longitudinal rod pin 12, a cylindrical structure 1001 is arranged at the lower end of the longitudinal rod 10, a third hole 1601 is formed in the battery box baffle 16, the cylindrical structure 1001 is matched with the third hole 1601 to form a rotating connection, and the battery box baffle 16 can freely rotate.
The longitudinal rod 10 is provided with a rotation limiting member, the rotation of the longitudinal rod 10 is determined to be limited or not by adjusting the position of the rotation limiting member, one end of the rotation limiting member is connected with a steel rope 15, the other end of the steel rope 15 is fixedly connected with the battery box base 2, and a second elastic element is connected to the rotation limiting member.
The rotation limiting component adopts a stop pin 13, a steel rope 15 is connected with the inner end 1301 of the stop pin, a connecting piece 204 is arranged on the base 2 of the battery box, and the second elastic element is arranged on the stop pin 13 and used for applying elastic force to the stop pin 13.
A stop pin 13 is inserted in the rocker moving block 7, and when the rocker moving block 7 moves towards the direction of locking the battery box 1, the stop pin 13 is ejected outwards to limit the rotation of the longitudinal rod 10.
The second elastic element is a compression spring 14, one end face of the compression spring 14 abuts against the inner end face 1302 of the large cylindrical section of the stop pin 13, and the other end face abuts against the bottom surface 1101 of the inner cylindrical hole 1105 of the rocker moving block 7.
The stop pin 13 comprises a discharge section which is provided in a non-cylindrical configuration. The non-cylindrical structure preferably takes the shape of a semi-cylinder.
The second elastic element adopts a torsion spring 8, the torsion spring 8 is sleeved on the longitudinal rod pin 13, a first protruding section 1401 at one end of the torsion spring 8 is clamped in a first groove 1003 of the longitudinal rod 10, and a second protruding section 1402 at the other end of the torsion spring is clamped in a second groove 1102 of the rocker moving block 7.
The battery box 1 is provided with a slope 101 on each of the left and right sides of the upper front end thereof. When the battery box is in a locked state, the stop pin 13 is ejected outwards by the elastic force of the compression spring 14, and the first plane 1303 can stop the longitudinal rod 11 to limit the anticlockwise rotation of the longitudinal rod; as shown in fig. 3, the battery box is in an unlocked state, and when the battery box 1 needs to be locked, the rocker 3 is rotated clockwise to drive the whole set of locking mechanism to move towards the direction close to the battery box 1: firstly, the battery box baffle 16 contacts the inclined plane 101 of the battery box 1 to rotate counterclockwise, the locking mechanism continues to move towards the direction close to the battery box 1 along with the continuous rotation of the rocker 3, the battery box baffle 16 continues to rotate under the action of the inclined plane 101 of the battery box 1 until the plane 1602 of the battery box baffle is completely attached to the inclined plane 101 of the battery box 1, as shown in fig. 1, and in the process, the stop pin 13 is in a spitting-out state, and the first plane 1303 of the battery box baffle abuts against the plane 1002 of the longitudinal rod 10, so that the rotation of the longitudinal rod 10 is avoided. The above is the locking process of the battery box, and the locking state of the battery box is shown in fig. 2.
After the locking process is finished, in order to ensure that the locking mechanism of the battery box 1 is not automatically unlocked in the vehicle-mounted vibration environment, a locking mechanism is further arranged. As shown in fig. 6, a locking mechanism is mounted on the battery box base 2, the locking mechanism includes a locking push rod 17, a bolt assembly, a bolt spring 20 and a bolt sleeve 21, the bolt assembly includes a bolt 19 and a bolt rod 24, and the bolt 19 is sleeved with the bolt spring 20 and is slidably assembled in the bolt sleeve 21. When the battery box 1 is locked, the anti-loosening push rod 17 is pushed inwards to drive the bolt sleeve 21 to move downwards, and when the bolt sleeve 21 moves downwards, the bolt 19 also moves downwards until being inserted into the groove 304 to limit the rotation of the rocker 3. The anti-loose push rod 17 is connected with the battery box base 2 through a first elastic element. The anti-loosening push rod 17 is provided with an anti-loosening push rod shaft shoulder 1701, and the inner end surface of the anti-loosening push rod shaft shoulder 1701 abuts against the outer end surface of the fourth hole 203 of the battery box base 2 under the action of elastic force, so that axial positioning is realized. The first elastic element is an extension spring 18, one end of the extension spring 18 is connected to the first connecting structure 1702 of the anti-loose push rod 17, and the other end of the extension spring 18 is connected to the second connecting structure 205 of the battery box base 2. A pair of steel balls 22 and a steel ball spring 23 are installed inside the locking push rod 17, and the steel ball spring 23 is set in a compressed state and is used for applying an outward elastic force to the steel balls 22. And a rocker moving block guiding structure is arranged on the battery box base 2 and used for guiding the translational motion of the rocker moving block 7. The longitudinal rod 10 is in a running fit with the rocker shifting block 7 via a longitudinal rod pin 12. The longitudinal rod 10 is provided with a structure which forms a rotating fit with the battery box baffle 16. The battery box 1 is provided with a structure for the baffle 16 of the battery box to abut against.
As shown in fig. 6, the anti-loose push rod 17 is slidably fitted in the fourth hole 203 of the battery box base 2, and is fitted with the bolt sleeve 21 through a rack-and-pinion structure, the front-and-back linear motion of the anti-loose push rod 17 is converted into the up-and-down linear motion of the bolt sleeve 21 through the rack-and-pinion structure, the bolt assembly and the bolt spring 20 are installed in the bolt sleeve 21, the bolt rod 24 has external threads 2401, the bolt 19 has internal threads 1901, and the two are fitted through a threaded structure. The bolt spring 20 is sleeved on the small cylindrical section of the bolt rod 24, the upper end of the bolt spring 20 abuts against the inner end surface 2101 of the bolt hole of the bolt sleeve 21, the lower end abuts against the upper end surface 1902 of the bolt, and the lower end surface of the large cylindrical section of the bolt rod 24 abuts against the bottom surface 2102 of the cylindrical hole of the bolt sleeve 21. The latch spring 20 is always in a compressed state, and the latch 19 is ejected outward by the elastic force of the latch spring 20. When the rocker 3 is rotated clockwise until the surface 1602 of the battery box baffle 16 is completely attached to the inclined surface 101 of the battery box 1, the battery box 1 is in a locked state; then the anti-loose push rod 17 is pushed inwards to drive the bolt sleeve 21 to move downwards, the bolt 19 moves downwards along with the bolt sleeve 21, then the bolt 19 is inserted into a groove 304 on the periphery of the rocker 3, and the groove 304 is composed of a vertical surface 3041 and an arc surface 3042, as shown in fig. 8. The vertical surface 3041 of the rocker 3 and the upper end surface 1902 of the lock tongue 19 abut against each other to prevent the rocker 3 from rotating counterclockwise, so that the locking of the rocker is completed, the rocker cannot rotate counterclockwise at the moment, and the locking of the battery box is completed. Meanwhile, an extension spring 18 is arranged, one end of the extension spring is connected with the first connecting structure 1702 of the anti-loosening push rod 17, the other end of the extension spring is connected with the second connecting structure 205 of the battery box base 2, and under the action of the pulling force of the extension spring 18, the anti-loosening push rod 17 is pulled inwards, so that the inner end face of the shaft shoulder 1701 of the anti-loosening push rod 17 is tightly abutted against the outer end face of the hole 203 of the battery box base 2, and the bolt 19 is prevented from automatically falling out of the groove 304 of the rocker 3.
When the battery box 1 needs to be pulled out, the anti-loosening push rod 17 is pulled out firstly, the bolt sleeve 21 is driven to move upwards, the bolt 19 also moves upwards to be separated from the groove 304 of the rocker 3, so that the fixation of the rocker 3 is released, and the rocker 3 is internally provided with a steel ball spring 23 and two steel balls 22, as shown in fig. 8. The ball spring 23 is in a compressed state, so that the ball 22 is urged outward by the elastic force. After the anti-loosening push rod 17 is pulled outwards until the steel balls 22 are separated from the hole 203 of the battery box base 2, the steel balls 22 can be exposed outwards under the action of the elastic force of the steel ball spring 23, and then the tensile force on the anti-loosening push rod 17 can be removed, because the steel balls 22 are exposed outwards and clamped on the outer end face of the hole 203 of the battery box base 2, the force of the steel balls 22 on the anti-loosening push rod 17 can balance the tensile force of the tension spring 18, so that the anti-loosening push rod 17 is ensured not to be automatically pulled inwards to cause the rocker 3 to be locked again and cannot rotate the rocker 3. And then the rocker 3 is rotated anticlockwise to drive the locking mechanism to move towards the direction far away from the battery box 1, so that the battery box 1 is unlocked. Meanwhile, in order to smoothly pull out the battery pack 1 after unlocking, it is necessary to release the lock of the vertical rod 10 by the stopper pin 13, and to tie one end of the wire 15 to the structure 1301 of the stopper pin 13 and the other end to the structure 204 of the battery pack base 2, as shown in fig. 9. When the rocker 3 is rotated counterclockwise, the locking mechanism moves in a direction away from the battery box 1, because the battery box base 2 is fixed, the steel rope 15 is tightened to pull the stop pin 13 inward until the end surface 1304 of the stop pin 13 completely retracts into the rocker moving block 7, as shown in fig. 10, the rotation of the rocker 3 can be stopped, then the battery box 1 is directly pulled out, because the stop pin 13 does not block the rotation of the longitudinal rod 10, the battery box 1 is pulled out, the battery box baffle 16 and the longitudinal rod 10 rotate counterclockwise together to avoid the battery box 1 after touching the battery box baffle 16 in the process of pulling out the battery box 1, so that the battery box 1 can be pulled out from the battery box base 2 smoothly, then the fully charged battery box 1 can be sent into the battery box base 2, at this time, after touching the battery box 1 and the longitudinal rod 10, the longitudinal rod 10 can rotate freely clockwise to avoid the battery box 1, and completing the battery replacement of the battery box 1 until the battery box 1 completely enters the battery box base 2.
The locking mechanism has the technical advantages of simple structure and convenience and rapidness in locking and unlocking on the premise of ensuring the reliable and stable locking of the battery box 1, the locking mechanism is simple and convenient to operate and easy to realize automation, the locking mechanism only needs to rotate the rocker 3 for locking and unlocking the battery box 1, and the locking mechanism only needs to push and pull the locking push rod 17 for locking and unlocking the rocker 3.
The above embodiments are merely preferred embodiments, wherein the components and the connection relations involved are not limited to the above described embodiments, and the arrangement and the connection relations of the components in the preferred embodiments may be arbitrarily arranged and combined to form a complete technical solution.
Claims (10)
1. The utility model provides a quick locking and unlocking device of on-vehicle power battery box, includes battery box base (2), is equipped with battery box (1) and locking mechanical system on battery box base (2), its characterized in that, locking mechanical system includes rocker (3), rocker movable block (7), vertical pole (10) and battery box baffle, rotates between rocker (3) and battery box base (2) to be connected, and the cover is equipped with rocker movable block (7) and sets to rotate and remove vice on rocker (3), rotates between rocker movable block (7) and vertical pole (10) to be connected, vertical pole (10) with rotate between the battery box baffle and be connected.
2. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 1, characterized in that a groove (304) is formed in the rocker (3), a locking mechanism is arranged on the base (2) of the battery box, the locking mechanism comprises a locking push rod (17), a bolt assembly, a bolt spring (20) and a bolt sleeve (21), the bolt assembly comprises a bolt (19) and a bolt rod (24), and the bolt (19) is sleeved with the bolt spring (20) and is slidably assembled in the bolt sleeve (21).
3. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 2, characterized in that after the battery box (1) is locked, the locking push rod (17) is pushed inwards to drive the bolt sleeve (21) to move downwards, and when the bolt sleeve (21) moves downwards, the bolt (19) moves downwards along with the bolt sleeve until the bolt sleeve (21) is inserted into the groove (304) to limit the rotation of the rocker (3).
4. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 2, characterized in that the locking push rod (17) is connected with the battery box base (2) through a first elastic element.
5. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 4, characterized in that the locking push rod (17) is provided with a shaft shoulder (1701), and the inner end surface of the shaft shoulder (1701) is abutted against the outer end surface of the fourth hole (203) of the battery box base (2) under the action of elastic force to realize axial positioning.
6. The vehicle-mounted power battery box quick locking and unlocking device according to claim 4, characterized in that the first elastic element is a tension spring (18), one end of the tension spring (18) is connected with the first connecting structure (1702) of the anti-loosening push rod (17), and the other end of the tension spring (18) is connected with the second connecting structure (205) of the battery box base (2).
7. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 6, characterized in that the locking push rod (17) is internally provided with a pair of steel balls (22) and a steel ball spring (23), and the steel ball spring (23) is set in a compressed state for applying an outward elastic force to the steel balls (22).
8. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 1, characterized in that a rocker moving block guiding structure is arranged on the base (2) of the battery box and used for guiding the translational motion of the rocker moving block (7).
9. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 1, characterized in that the longitudinal rod (10) forms a rotation fit with the rocker moving block (7) through a longitudinal rod pin (12).
10. The quick locking and unlocking device for the vehicle-mounted power battery box according to claim 1, characterized in that the longitudinal rod (10) is provided with a structure forming a running fit with the battery box baffle (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010065973.9A CN111086379B (en) | 2020-01-20 | 2020-01-20 | Quick locking and unlocking device for vehicle-mounted power battery box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010065973.9A CN111086379B (en) | 2020-01-20 | 2020-01-20 | Quick locking and unlocking device for vehicle-mounted power battery box |
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| CN111086379B CN111086379B (en) | 2021-06-22 |
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| CN111987371A (en) * | 2020-07-21 | 2020-11-24 | 合肥爱和力人工智能技术服务有限责任公司 | Industrial vehicle battery maintenance and prediction equipment |
| CN113715687A (en) * | 2021-09-30 | 2021-11-30 | 北京胜能能源科技有限公司 | Vehicle battery state detection method and device, electronic equipment and vehicle |
| WO2022007812A1 (en) * | 2020-07-06 | 2022-01-13 | 奥动新能源汽车科技有限公司 | Unlocking apparatus, swapping device comprising same, and unlocking control method |
| CN116117547A (en) * | 2022-11-28 | 2023-05-16 | 奥莱特汽车科技有限公司 | Automatic clamping mechanism for large side of vehicle |
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| CN111086379B (en) | 2021-06-22 |
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