CN113043905B - Locking mechanism of pure electric heavy-duty truck power-exchanging system - Google Patents
Locking mechanism of pure electric heavy-duty truck power-exchanging system Download PDFInfo
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- CN113043905B CN113043905B CN202110519287.9A CN202110519287A CN113043905B CN 113043905 B CN113043905 B CN 113043905B CN 202110519287 A CN202110519287 A CN 202110519287A CN 113043905 B CN113043905 B CN 113043905B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 43
- 230000007423 decrease Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 238000013016 damping Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The application discloses a locking mechanism of a pure electric heavy-duty card power conversion system, which relates to the technical field of heavy-duty card power conversion and comprises a vehicle-mounted power conversion base and a power conversion type battery box assembly, wherein the power conversion type battery box assembly is provided with a plurality of locking bases which are used for being fixedly connected with the vehicle-mounted power conversion base, and the locking bases are provided with waist-groove-shaped locking slotted holes; the vehicle-mounted power conversion base is provided with a plurality of knob type locking pins which are respectively used for being matched and fixed with the corresponding locking base, and the knob type locking pins are connected with driving parts for driving and rotating. According to the application, the driving piece and the knob type locking pin are connected through the spline, so that a trace of up-and-down displacement space is provided on the knob type locking pin, and further, when the corresponding end of the knob type locking pin slides in the spline, the driving piece is effectively prevented from being stressed, so that the damage of the driving mechanism is effectively avoided, and the problem of frequent damage of the driving mechanism is solved.
Description
Technical Field
The application relates to the technical field of heavy-duty truck power conversion, in particular to a locking mechanism of a pure electric heavy-duty truck power conversion system.
Background
At present, in the field of electric heavy truck power exchange, a battery box adopts a structure capable of being quickly replaced, and replacement can be completed in a special power exchange station. Under the action of a special power exchange device, the discharged battery box is taken down and put into a charging station, and the charged battery box is mounted on an electric heavy truck.
The chinese patent with the bulletin number CN211764880U discloses a three-level positioning and locking device for an electric heavy-duty battery box, which comprises a battery box fixing base, wherein the battery box fixing base is a square frame, and the three-level positioning and locking device comprises: each side of the square frame is provided with an inclined block positioning part, the inclined block positioning parts are positioned at the inner side of the square frame, and the inclined surfaces of the inclined block positioning parts are outwards used for realizing rough positioning of the battery box; a group of opposite edges of the square frame are also provided with positioning conical pins, the height of the positioning conical pins is smaller than that of the inclined block positioning component, and the positioning conical pins are inserted into positioning holes at the bottom of the battery box and are used for realizing accurate positioning of the battery box; the square frame is also provided with a connector plug guide hole, the height of the positioning conical pin is higher than that of the connector plug guide hole, and a connector plug guide post on the battery box is inserted into the connector plug guide hole to realize connector coupling positioning; the side-plug type locking mechanism is arranged on the inclined block positioning component and locks after the inclined block positioning component, the positioning taper pin and the connector plug guide hole are connected with the battery box.
However, after the battery box of the three-stage positioning and locking device for the electric heavy truck battery box is locked with the battery box fixing base, displacement or vibration in the upper and lower directions is formed between the battery box and the battery box fixing base due to jolt caused by poor road surface flatness in the running process of the vehicle; and the battery box will pull the positioning taper pin to cause the positioning taper pin to be stressed and damaged when being displaced upwards due to force transmission, and the improvement is needed.
Disclosure of Invention
Therefore, the application aims to provide the locking mechanism of the pure electric heavy-duty card power conversion system so as to effectively prolong the service life of the locking mechanism. The specific scheme is as follows:
The utility model provides a pure electric heavy truck trades electric system locking mechanism, includes on-vehicle trading electric base and trading electric battery box assembly, trading electric battery box assembly be provided with a plurality of be used for with on-vehicle trading electric base connect fixed locking base, locking base is provided with waist slot form locking slotted hole; the vehicle-mounted power conversion base is provided with a plurality of knob type locking pins which are respectively used for being matched and fixed with the corresponding locking base, and the knob type locking pins are connected with driving parts for driving rotation;
the locking groove holes are respectively provided with locking oblique blocks at two ends in the width direction, the end parts of the locking oblique blocks are provided with locking abutting grooves, the corresponding two locking abutting grooves are respectively positioned at the upper end and the lower end of the locking oblique blocks, and the depth of one side of each end part is gradually reduced to the depth of the other end;
the vehicle-mounted power conversion base is provided with a first limiting plate and a second limiting plate, and the knob type locking pin is connected with a limiting bottom which is located between the first limiting plate and the second limiting plate and moves along the vertical direction.
Preferably: the driving piece is a rotation driving piece, and the rotation driving piece is provided with an installation fixing plate used for being connected and fixed with the vehicle-mounted power conversion base and a spline tooth shaft used for being connected with the knob type locking pin; the bottom of the knob type locking pin is used for inserting and meshing the spline gear shaft.
Preferably: the knob type locking pin comprises a pin column and a locking head part fixed at the upper end of the pin column, the bottom of the locking head part is used for being abutted with the locking abutting groove, the limiting bottom is fixed at the lower end of the pin column, and the top end of the locking head part is provided with a conical top.
Preferably: the bottom side of the locking head is provided with two head abutting grooves which are distributed circumferentially, and the depth of one side, close to the corresponding locking abutting groove, of the head abutting groove gradually decreases towards the depth of the other side.
Preferably: the upper side of the first limiting plate is provided with a vibration reduction pad assembly, and the upper side of the vibration reduction pad assembly is used for being abutted to the battery box assembly.
Preferably: the driving piece is a cylinder assembly, the cylinder assembly is provided with a piston rod, the piston rod is fixedly connected with a universal joint, the universal joint is connected with a connecting rod body in a left-right rotating mode, the connecting rod body is connected with a cam shaft in a rotating mode, a spline is formed in the cam shaft, and the bottom of the knob type locking pin is inserted into the cam shaft and meshed with the spline.
Preferably: the universal joint is provided with a switching U-shaped groove, the peripheral side wall of the cam shaft is provided with a cam switching part, the two ends of the connecting rod body are respectively provided with a pin shaft, and the corresponding ends are respectively inserted into the switching U-shaped groove and the cam switching part and are rotationally connected by taking the pin shafts as shafts.
Preferably: the cam shaft is sleeved with a bottom support cover, the top end of the bottom support cover is fixedly connected with the bottom of the vehicle-mounted power conversion base, and the bottom support cover is provided with a bottom support groove matched with the cam shaft and a rotating hole for the cam switching part to penetrate out; bearings sleeved on the knob type locking pins are arranged at the upper end and the lower end of the collet groove.
Preferably: the rotary knob type locking pin is provided with a return assembly, the return assembly comprises a return spring sleeved on the rotary knob type locking pin and a spring fixing buckle for connecting and fixing one end of the return spring with the rotary knob type locking pin, the vehicle-mounted power conversion base is provided with a spring stop block, and the left side and the right side of the spring stop block are respectively provided with a spring stop groove for inserting and abutting corresponding ends of the return spring.
Preferably: the driving piece is a cylinder fixing seat, a cylinder joint fixedly connected with the cylinder fixing seat and a driving cylinder with one end rotationally connected with the cylinder joint, the other end of the driving cylinder is connected with a cylinder pin shaft, the cylinder pin shaft is rotationally connected with a cam shaft, and the cam shaft is in meshed connection with the knob type locking pin through a spline.
According to the scheme, the application provides the locking mechanism of the pure electric heavy-duty card power conversion system, which has the following beneficial effects:
1. After the driving piece drives the knob type locking pin with the axis along the vertical direction to rotate, the vehicle-mounted power conversion base and the power conversion type battery box assembly are connected and fixed, and even if the power conversion type battery box assembly generates displacement or vibration in the up-down direction relative to the vehicle-mounted power conversion base due to the jolt of a road surface, the received extrusion force can be relieved in the axis direction of the knob type locking pin, so that the bending damage of the knob type locking pin is avoided;
2. The driving piece and the knob type locking pin are connected through the spline, so that a trace of up-and-down displacement space is provided on the knob type locking pin, the driving piece is effectively prevented from being stressed when the corresponding end of the knob type locking pin slides in the spline, the damage of the driving mechanism is effectively avoided, and the problem of frequent damage of the driving mechanism is solved;
3. The universal joint is driven to operate through the cylinder assembly, so that the camshaft is driven to rotate in the operation of the driving connecting rod body, the purpose of driving the knob type locking pin to rotate is achieved, and the rotary type locking pin is simple in structure, easy to implement and practical;
4. through the mutual matching of the return spring, the spring fixing buckle and the spring stop block, when the return spring is in a free state, the knob type locking pin is in a locking state, namely the vehicle-mounted power exchange base and the power exchange type battery box assembly are connected and fixed into a whole; when the piston rod of the cylinder assembly returns and the knob type locking pin is unlocked, the return spring plays a role in protecting and preventing pin dislocation by overcoming the deformation force of the return spring;
5. When the vehicle runs on a bumpy road surface, the battery box assembly of the power conversion type generates up-and-down vibration relative to the vehicle-mounted power conversion base, and then will make the relative displacement between knob formula locking round pin and the wedge cushion, there is the risk of pin removal, and return spring plays effectual effect that prevents the risk of pin removal this moment.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first embodiment of the present disclosure;
FIG. 2 is a schematic view of a partial explosion structure according to a first embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a second embodiment of the present disclosure;
FIG. 4 is a schematic view of a partial explosion structure of a second embodiment of the present disclosure;
fig. 5 is a schematic partial structure of a third embodiment of the present disclosure.
Reference numerals illustrate: 1. vehicle-mounted power exchange base; 11. a first limiting plate; 12. a second limiting plate; 2. a battery box assembly for changing electricity; 21. locking the base; 22. locking the oblique block; 221. locking the abutting groove; 23. locking the slotted hole; 3. a vibration damping pad assembly; 4. a knob type locking pin; 41. a pin; 42. a locking head; 43. a conical top; 44. a limit bottom; 5. a rotary driving member; 51. installing a fixing plate; 52. a spline tooth shaft; 6. a cylinder assembly; 61. a piston rod; 7. a universal joint; 71. a switching U-shaped groove; 8. a connecting rod body; 81. a pin shaft; 9. a cam shaft; 91. a cam adapter; 10. a shoe cover; 101. a bracket; 102. a rotation hole; 001. a return assembly; 0011. a spring stop block; 00111. a spring stop groove; 0012. a bearing; 0013. a return spring; 0014. a pin base; 0015. a spring fixing buckle; 002. a cylinder fixing seat; 0021. a cylinder joint; 0022. a driving cylinder; 0023. and a cylinder pin shaft.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
As shown in fig. 1, the locking mechanism of the pure electric heavy-duty card power conversion system comprises a vehicle-mounted power conversion base 1 and a power conversion type battery box assembly 2. The vehicle-mounted battery replacement base 1 is used for being connected and fixed with a pure electric heavy truck body, and the battery replacement type battery box assembly 2 is used for installing and fixing a battery, so that after the battery replacement type battery box assembly 2 is detached from the vehicle-mounted battery replacement base 1, the battery replacement type battery box assembly 2 with a charged battery is charged and replaced through a battery replacement station.
It should be mentioned that the battery box assembly 2 is provided with a plurality of locking bases 21 for connection and fixation with the vehicle-mounted battery box 1. The locking bases 21 are uniformly distributed on the battery box assembly 2, so that when the vehicle-mounted battery box assembly 1 is fixedly connected, the stability of the connection structure of the vehicle-mounted battery box assembly 2 and the battery box assembly 1 is remarkably improved. In this embodiment, the locking base 21 is provided with four corners and is respectively located at four corners of the battery box assembly 2, so as to achieve the purpose of effectively connecting and fixing the vehicle-mounted battery box assembly 2 and the battery box assembly 1.
The locking base 21 is provided with a waist-groove-shaped locking slotted hole 23, and the vehicle-mounted power conversion base 1 is provided with a plurality of knob type locking pins 4 which are respectively used for being matched and fixed with the corresponding locking base 21. Meanwhile, the knob type locking pin 4 is connected with a driving piece for driving rotation, so that after the knob type locking pin 4 is driven to rotate by the driving piece, the knob type locking pin 4 with the shape of the kidney-shaped locking slot 23 and the kidney-shaped locking slot 23 form a cross arrangement, and the bottom of the knob type locking pin 4 is abutted and fixed with the locking base 21.
Wherein, the locking slotted hole 23 is provided with locking sloping blocks 22 at both ends along the width direction. The locking oblique block 22 is provided with locking abutment grooves 221 at its end portions, and the corresponding two locking abutment grooves 221 are respectively located at the upper and lower ends of the locking oblique block 22, and the depth of one side located at the end portion gradually decreases toward the depth of the other end. When the knob type locking pin 4 is driven by the driving piece to rotate, the bottom of the knob type locking pin 4 is in advance contact with one end with the large depth of the locking abutting groove 221 and gradually moves towards the other end, so that a gap between the knob type locking pin 4 and the locking oblique block 22 is gradually reduced in the moving process, and the effect of a stable abutting structure is achieved. Therefore, after the knob type locking pin 4 with the axis in the vertical direction is driven by the driving piece to rotate, the vehicle-mounted power conversion base 1 and the power conversion type battery box assembly 2 are fixedly connected, and even if the power conversion type battery box assembly 2 generates displacement or vibration in the up-down direction relative to the vehicle-mounted power conversion base 1 due to jolt of a road surface, the received extrusion force can be relieved in the axis direction of the knob type locking pin 4, so that bending damage of the knob type locking pin 4 is avoided.
As shown in fig. 2, a first limiting plate 11 and a second limiting plate 12 are provided on the vehicle-mounted battery exchange base 1. The first limiting plate 11 and the second limiting plate 12 are respectively located at the upper end and the lower end, and a limiting bottom 44 which is located between the first limiting plate 11 and the second limiting plate 12 and moves along the vertical direction is arranged on the knob type locking pin 4. It should be mentioned that in the present embodiment, the driving member is the rotation driving member 5. The rotary driving member 5 is provided with a mounting fixing plate 51 for connection fixation with the vehicle-mounted battery exchange base 1 and a spline tooth shaft 52 for connection with the knob-type lock pin 4. Correspondingly, the bottom of the knob type locking pin 4 is inserted and meshed with the spline gear shaft 52, so that the spline gear shaft 52 drives the knob type locking pin 4 to rotate when the rotation driving piece 5 drives the spline gear shaft 52 to rotate. Therefore, the driving piece and the knob type locking pin 4 are connected through the spline tooth shaft 52, so that a small amount of up-and-down displacement space is provided on the knob type locking pin 4, and further, the driving piece is effectively prevented from being stressed when the corresponding end of the knob type locking pin 4 slides in the spline tooth shaft 52, the driving mechanism is effectively prevented from being damaged, and the problem that the driving mechanism is frequently damaged is solved.
The knob type locking pin 4 includes a pin 41 and a locking head 42 fixed to an upper end of the pin 41. The bottom of the locking head 42 is adapted to abut against the locking abutment groove 221. Wherein, the limit bottom 44 fixes the lower end of the pin 41 to achieve the purpose of effectively connecting the knob type locking pin 4 and limiting the movement and rotation of the knob type locking pin 4. In order to reduce the connection and fixation difficulty of the vehicle-mounted battery replacement base 1 and the battery replacement box assembly 2, the replacement efficiency of the battery replacement box assembly 2 is improved, and a conical top 43 is arranged at the top end of the locking head 42, so that the knob type locking pin 4 effectively penetrates through the locking slot hole 23 through the guidance of the conical top 43, and the vehicle-mounted battery replacement base 1 and the battery replacement box assembly 2 are installed, fixed or detached and separated under the driving of the rotating driving piece 5.
It should be mentioned that two circumferentially distributed head abutment grooves are provided on the underside of the locking head 42. The depth of the head abutment groove gradually decreases from one side to the other side near the corresponding locking abutment groove 221. And a vibration damping pad assembly 3 is provided at an upper side of the first limiting plate 11. The upside of damping pad assembly 3 is used for with trading electric battery box assembly 2 butt to when avoiding on-vehicle electric base 1 and trading electric battery box assembly 2's hard contact, the connection fixed stability of on-vehicle electric base 1 and trading electric battery box assembly 2 that trades is improved through the elasticity that damping pad assembly 3 had.
Example two
The difference between the second embodiment and the first embodiment is that the driving member in the second embodiment is a cylinder assembly 6. The cylinder assembly 6 is provided with a piston rod 61, and the piston rod 61 is fixedly connected with a universal joint 7. The universal joint 7 is connected with a connecting rod body 8 in a left-right rotating way, and the connecting rod body 8 is connected with a cam shaft 9 in a rotating way. The cam shaft 9 is internally provided with a spline, and the bottom of the knob type locking pin 4 is inserted into the cam shaft 9 and meshed with the spline, so that when the cylinder assembly 6 drives the piston rod 61 to operate, the connecting rod body 8 drives the cam shaft 9 to rotate under the connection of the universal joint 7 and the cam shaft 9. Wherein the universal joint 7 is provided with a transfer U-shaped groove 71. And a cam adapter 91 is provided on the outer peripheral side wall of the camshaft 9. The two ends of the connecting rod body 8 are provided with pin shafts 81, and the corresponding ends of the connecting rod body 8 are respectively inserted into the switching U-shaped groove 71 and the cam switching part 91 and are rotationally connected by taking the pin shafts 81 as shafts. Therefore, the universal joint 7 is driven to operate through the cylinder assembly 6, and then the camshaft 9 is driven to rotate in the operation of the driving connecting rod body 8, so that the purpose of driving the knob type locking pin 4 to rotate is achieved, the structure is simple, the implementation is easy, and the effect of high practicability is achieved.
The camshaft 9 is sleeved with the shoe cover 10. The top of collet cover 10 is connected fixedly with the bottom of on-vehicle trading base 1 to effectively install camshaft 9 to on-vehicle trading base 1. The shoe cover 10 is provided with a shoe groove 101 which is matched with the cam shaft 9, and a rotation hole 102 through which the cam adapter 91 passes. And bearings 0012 sleeved on the knob type locking pins 4 are arranged at the upper end and the lower end of the collet groove 101.
Meanwhile, a return unit 001 is provided on the knob type lock pin 4. The return assembly 001 comprises a return spring 0013 sleeved on the knob type locking pin 4, a pin seat 0014 and a spring fixing buckle 0015 for connecting and fixing one end of the return spring 0013 with the knob type locking pin 4. Correspondingly, a spring stop block 0011 is also arranged on the vehicle-mounted power conversion base 1. The left and right sides of the spring stop block 0011 are respectively provided with a spring stop groove 00111 in which a corresponding end of the return spring 0013 is inserted and abutted. Therefore, through the mutual matching of the return spring 0013, the spring fixing buckle 0015 and the spring stop block 0011, when the return spring 0013 is in a free state, the knob type locking pin 4 is in a locking state, namely the vehicle-mounted power conversion base 1 and the power conversion type battery box assembly 2 are connected and fixed into a whole; and when the piston rod 61 of the cylinder assembly 6 returns, and the knob type locking pin 4 is unlocked, the deformation force of the return spring 0013 is overcome, so that the return spring 0013 plays a role in protecting and preventing pin removal, and when the vehicle runs on a bumpy road, the battery box assembly 2 vibrates up and down relative to the vehicle-mounted battery box assembly 1, and further relative displacement is generated between the knob type locking pin 4 and the wedge-shaped cushion block, pin removal risks exist, and at the moment, the return spring 0013 plays a role in effectively preventing pin removal risks.
Example III
The difference between the third embodiment and the second embodiment is that the driving member in the third embodiment is a cylinder fixing seat 002, a cylinder joint 0021 fixedly connected with the cylinder fixing seat 002, and a driving cylinder 0022 with one end rotationally connected with the cylinder joint 0021. The other end of the driving cylinder 0022 is connected with a cylinder pin 0023, and the cylinder pin 0023 is used for being rotationally connected with the cam shaft 9, so that the purpose of effectively driving the cam shaft 9 to do circumferential reciprocating rotation is achieved. Correspondingly, the cam shaft 9 is in engagement with the knob-type locking pin 4 via a spline.
In summary, the driving piece and the knob type locking pin 4 are connected through the spline, so that a trace of up-and-down displacement space is provided on the knob type locking pin 4, and further, when the corresponding end of the knob type locking pin 4 slides in the spline, the driving piece is effectively prevented from being stressed, so that the damage of the driving mechanism is effectively avoided, and the problem of frequent damage of the driving mechanism is solved.
The references to "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects from each other and are not necessarily used to describe a particular order or sequence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, or apparatus.
It should be noted that the description of "first", "second", etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. The utility model provides a pure electric heavy truck trades electric system locking mechanism, includes on-vehicle trading electric base (1) and trades electric battery box assembly (2), its characterized in that: the battery box assembly (2) is provided with a plurality of locking bases (21) which are used for being fixedly connected with the vehicle-mounted battery box assembly (1), and the locking bases (21) are provided with waist-groove-shaped locking slotted holes (23); the vehicle-mounted power conversion base (1) is provided with a plurality of knob type locking pins (4) which are respectively used for being matched and fixed with the corresponding locking base (21), and the knob type locking pins (4) are connected with driving parts for driving rotation;
The two ends of the locking slotted hole (23) along the width direction are provided with locking oblique blocks (22), the end parts of the locking oblique blocks (22) are provided with locking abutting grooves (221), the corresponding two locking abutting grooves (221) are respectively positioned at the upper end and the lower end of the locking oblique blocks (22), and the depth of one side of each end part is gradually reduced to the depth of the other end;
the vehicle-mounted power exchange base (1) is provided with a first limiting plate (11) and a second limiting plate (12), and the knob type locking pin (4) is connected with a limiting bottom (44) which is positioned between the first limiting plate (11) and the second limiting plate (12) and moves along the vertical direction;
The driving piece is a rotation driving piece (5), and the rotation driving piece (5) is provided with a mounting fixing plate (51) used for being fixedly connected with the vehicle-mounted power exchange base (1) and a spline tooth shaft (52) used for being connected with the knob type locking pin (4); the bottom of the knob type locking pin (4) is used for inserting and meshing the spline tooth shaft (52);
The knob type locking pin (4) comprises a pin column (41) and a locking head (42) fixed at the upper end of the pin column (41), the bottom of the locking head (42) is used for being abutted with the locking abutting groove (221), and the limiting bottom (44) is fixed at the lower end of the pin column (41) and is provided with a conical top (43) at the top end of the locking head (42).
2. The electric only heavy truck power conversion system locking mechanism of claim 1, wherein: the bottom side of the locking head (42) is provided with two head abutting grooves which are distributed circumferentially, and the depth of one side, close to the corresponding locking abutting groove (221), of each head abutting groove gradually decreases towards the depth of the other side.
3. The electric only heavy truck power conversion system locking mechanism of claim 1, wherein: the upper side of the first limiting plate (11) is provided with a vibration reduction pad assembly (3), and the upper side of the vibration reduction pad assembly (3) is used for being abutted to the battery box assembly (2).
4. The electric only heavy truck power conversion system locking mechanism of claim 1, wherein: the driving piece is a cylinder assembly (6), the cylinder assembly (6) is provided with a piston rod (61), the piston rod (61) is fixedly connected with a universal joint (7), the universal joint (7) is connected with a connecting rod body (8) in a left-right rotating mode, the connecting rod body (8) is connected with a cam shaft (9) in a rotating mode, a spline is formed in the cam shaft (9), and the bottom of the knob type locking pin (4) is inserted into the cam shaft (9) and meshed with the spline.
5. The electric only heavy truck power conversion system locking mechanism of claim 4, wherein: the universal joint (7) is provided with a switching U-shaped groove (71), a cam switching part (91) is arranged on the peripheral side wall of the cam shaft (9), pin shafts (81) are arranged at two ends of the connecting rod body (8), and corresponding ends are respectively inserted into the switching U-shaped groove (71) and the cam switching part (91) and are rotationally connected by taking the pin shafts (81) as shafts.
6. The electric only heavy truck power conversion system locking mechanism of claim 5, wherein: the camshaft (9) is sleeved with a collet cover (10), the top end of the collet cover (10) is fixedly connected with the bottom of the vehicle-mounted power exchange base (1), and the collet cover (10) is provided with a collet groove (101) matched with the camshaft (9) and a rotating hole (102) for the cam adapter part (91) to penetrate out; bearings (0012) sleeved on the knob type locking pins (4) are arranged at the upper end and the lower end of the collet groove (101).
7. The electric only heavy truck power conversion system locking mechanism of claim 5, wherein: the utility model discloses a vehicle-mounted power conversion base, including knob formula locking pin (4), knob formula locking pin (4) are provided with return subassembly (001), return subassembly (001) are including cup jointing return spring (0013) on knob formula locking pin (4) and will return spring (0013) one end with fixed spring fixing knot (0015) are connected to knob formula locking pin (4), vehicle-mounted power conversion base (1) is provided with spring stop piece (0011), the left and right sides of spring stop piece (0011) all is provided with supplies return spring (0013)'s corresponding one end inserts spring stop groove (00111) of butt.
8. The electric only heavy truck power conversion system locking mechanism of claim 1, wherein: the driving piece is a cylinder fixing seat (002), a cylinder joint (0021) fixedly connected with the cylinder fixing seat (002) and a driving cylinder (0022) with one end rotationally connected with the cylinder joint (0021), the other end of the driving cylinder (0022) is connected with a cylinder pin shaft (0023), the cylinder pin shaft (0023) is rotationally connected with a cam shaft (9), and the cam shaft (9) is in meshed connection with the knob type locking pin (4) through a spline.
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| CN202110519287.9A CN113043905B (en) | 2021-05-12 | 2021-05-12 | Locking mechanism of pure electric heavy-duty truck power-exchanging system |
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| CN202110519287.9A CN113043905B (en) | 2021-05-12 | 2021-05-12 | Locking mechanism of pure electric heavy-duty truck power-exchanging system |
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| CN113415207B (en) * | 2021-08-09 | 2024-05-03 | 安徽华菱汽车有限公司 | Hydraulic locking mechanism of pure electric heavy-duty truck power-exchanging system |
| CN113858932A (en) * | 2021-10-11 | 2021-12-31 | 安徽福马汽车零部件集团有限公司 | Light-weight quick battery replacing frame assembly and method for replacing battery integrally |
| CN116424081B (en) * | 2023-04-19 | 2023-12-15 | 江苏众如金属科技有限公司 | Electronic heavy truck battery box locking device assembly |
| CN116315401B (en) * | 2023-05-18 | 2023-08-29 | 北京玖行智研交通科技有限公司 | Anti-impact locking assembly of battery box for battery replacement |
| CN117677095A (en) * | 2023-09-01 | 2024-03-08 | 国网江苏省电力有限公司信息通信分公司 | Photoelectric tester and use method thereof |
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