CN110001372B - Locking mechanism for battery pack, quick-change bracket assembly and electric vehicle - Google Patents
Locking mechanism for battery pack, quick-change bracket assembly and electric vehicle Download PDFInfo
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- CN110001372B CN110001372B CN201711478821.6A CN201711478821A CN110001372B CN 110001372 B CN110001372 B CN 110001372B CN 201711478821 A CN201711478821 A CN 201711478821A CN 110001372 B CN110001372 B CN 110001372B
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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
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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
- H01M50/258—Modular batteries; Casings provided with means for assembling
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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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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
- B60K2001/0455—Removal or replacement of the energy storages
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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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a locking mechanism for a battery pack, a quick-change bracket assembly and an electric vehicle. The locking mechanism includes: the lock base is provided with an opening and a cavity extending from the opening; the bolt can rotate relative to the lock base to change between an unlocking state and a locking state, and when the bolt is in the locking state, the bolt can prevent the lock shaft from leaving the cavity from the opening; and the resetting component is arranged on the lock base and acts on the bolt, and the resetting component is used for enabling the bolt to rotate along a locking direction so as to reset from an unlocking state to a locking state. The reset component is arranged to facilitate the reset of the lock tongue from the unlocking state to the locking state, so that the battery pack is convenient to mount and lock, and the lock tongue cannot be easily changed into the unlocking state under the action of the reset component, so that the locking is more reliable; locking mechanism can provide second grade locking or locking protect function for the battery package, is used for preventing that the battery package from dropping when current device locking is invalid, improves the security performance.
Description
Technical Field
The invention relates to a locking mechanism for a battery pack, a quick-change bracket assembly and an electric vehicle.
Background
The conventional battery pack mounting methods for electric vehicles are generally classified into a fixed type and a replaceable type, wherein the fixed type battery pack is generally fixed on an automobile, and the automobile is directly used as a charging object during charging. The replaceable battery pack is generally movably mounted, and the battery pack can be taken down at any time and replaced by a new battery pack.
Locking and unlocking of the battery pack is involved in the process of replacing a new battery pack. Generally, lock shafts are installed on the left and right sides of the battery pack; the locking device is fixed on the quick-change bracket to assemble a quick-change bracket assembly, and the quick-change bracket assembly is further installed on a chassis of the electric vehicle; the locking shaft is matched with the locking device to realize the locking of the battery pack. And current locking means only contains one-level locking, lacks the locking protection, and in case break down, the locking is invalid, and the battery package has probably dropped, brings very big potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a locking mechanism for a battery pack, a quick-change bracket assembly and an electric vehicle.
The invention solves the technical problems through the following technical scheme:
a locking mechanism for a battery pack, said locking mechanism comprising:
the lock base is provided with an opening and a cavity extending from the opening, and the opening is used for allowing a lock shaft mounted on the battery pack to enter the cavity;
a locking bolt rotatable relative to the lock base to change between an unlocked state and a locked state, the locking bolt being capable of preventing the lock shaft from exiting the cavity from the opening when the locking bolt is in the locked state; and
the reset component is arranged on the lock base and acts on the lock tongue, the reset component can elastically deform, and the reset component is used for enabling the lock tongue to rotate in a locking direction to reset from the unlocking state to the locking state.
Preferably, the locking mechanism further includes an inner limiting portion, and when the lock tongue is in the locking state, the inner limiting portion abuts against the lock tongue to prevent the lock tongue from continuing to rotate along the locking direction.
With the arrangement, the inner limiting part is used for ensuring the lock tongue to stay in a locking state.
Preferably, the inner limiting portion is an inner wall surface of the lock base defining the cavity.
By adopting the arrangement, the structure is simple and ingenious.
Preferably, the locking mechanism further comprises a centering shaft, the centering shaft is arranged on the lock base and penetrates through the lock tongue, and the lock tongue can rotate around the centering shaft.
Preferably, the reset component is a spring, the reset component has a contact portion and a connecting portion, the connecting portion is disposed on the lock base, and the contact portion contacts with the lock tongue to act on the lock tongue.
Preferably, the reset component is a torsion spring, the reset component further has a spiral part, the spiral part is connected with the contact part and the connection part, and the contact part and the connection part can rotate around the spiral part to realize the elastic force change.
By adopting the arrangement, the reset of the reset component is realized by means of the elastic force change of the spiral part, so that the reset of the lock tongue to a locking state is realized.
Preferably, the locking mechanism further includes a rotating shaft, the rotating shaft is disposed on the lock base, and the spiral portion is sleeved on the rotating shaft.
With the above arrangement, the range of movement of the screw portion is restricted, thereby preventing the restoring member from being disengaged from the lock base.
Preferably, the reset component is arranged above the bolt.
By adopting the arrangement, compared with the structure that the reset part is arranged below the lock tongue, the resistance of the gravity of the lock tongue on the reset of the reset part can be avoided; in addition, the arrangement is convenient for the lock shaft to enter the cavity from the lower part.
Preferably, a groove is formed in the top of the lock base, the groove is communicated with the cavity, and the resetting component is at least partially located in the groove.
Preferably, the locking tongue is at least partially located within the cavity, the locking tongue being able to enter the cavity from the recess.
With the arrangement, the lock tongue can be installed through the groove.
Preferably, the lock base still is equipped with the unlocking hole, locking mechanism still includes the unblock part, the unblock part is located the unlocking hole, just the one end of unblock part with the spring bolt contacts, the unblock part can act on the spring bolt is so that the spring bolt rotates along an unblock direction in order to follow the locking state changes to the unblock state.
With the above arrangement, the unlocking member conveniently completes unlocking.
Preferably, the unlocking part comprises an unlocking spring, an unlocking head and an unlocking rod part which are connected with each other, the unlocking hole is a stepped hole, a step part is arranged in the unlocking hole, the inner diameter of the inner end of the unlocking hole is smaller than that of the outer end of the unlocking hole, the unlocking spring is at least partially located in the unlocking hole, and two ends of the unlocking spring are respectively abutted to the unlocking head and the step part.
By adopting the arrangement, the unlocking spring plays a role in buffering, and after unlocking is completed, the unlocking spring can also enable the unlocking head and the unlocking rod to reset by virtue of self elasticity, so that the lock tongue cannot be reset to a locking state to generate interference.
Preferably, the locking mechanism further comprises an elastic member at least partially located in the cavity, the elastic member being configured to abut against the lock shaft.
With the arrangement, the elastic component prevents the lock shaft from rigidly impacting the lock base.
Preferably, the elastic member includes an elastic pad located in the cavity, and the elastic pad is used for abutting against the lock shaft.
Preferably, the elastic component further includes an elastic handle portion and an elastic head portion, the elastic handle portion and the elastic head portion are sequentially connected, the elastic handle portion is disposed through the lock base, and the wall portion of the lock base is clamped between the elastic pad and the elastic head portion.
With the above arrangement, the entire elastic member can be stably mounted on the lock base.
Preferably, the lock base is provided with a positioning hole, the locking mechanism further comprises a positioning pin, the positioning pin is partially located outside the positioning hole, and the positioning pin and the positioning hole are in interference fit.
By adopting the arrangement, when the locking mechanism is arranged on the quick-change support, the positioning pin can be used for positioning.
Preferably, the lock base is provided with a mounting hole, and the mounting hole is a threaded hole.
With the above arrangement, the threaded fastener can pass through the mounting hole to mount the locking mechanism on the quick-change bracket.
Preferably, the opening is a bell mouth.
By adopting the arrangement, the lock shaft can conveniently enter the cavity.
The quick-change bracket component is characterized by comprising a quick-change bracket and the locking mechanism, wherein the locking mechanism is fixedly arranged on the quick-change bracket.
Preferably, the quick-change bracket assembly further comprises a primary locking mechanism, the primary locking mechanism comprises a lock connecting rod, at least one primary lock tongue and at least one primary lock base, the primary lock base is fixedly arranged on the quick-change bracket, the primary lock base is provided with a primary opening and a primary cavity extending from the primary opening, the primary opening is used for allowing a primary lock shaft arranged on the battery pack to enter the primary cavity, the lock connecting rod is rotatably connected with at least one primary lock tongue, is used for driving the first-stage lock tongue to rotate under the action of external force, so that the first-stage lock tongue can rotate relative to the first-stage lock base to change between a first-stage unlocking state and a first-stage locking state, when the first-stage spring bolt is in the first-stage locking state, the first-stage spring bolt can prevent the first-stage lock shaft from leaving the first-stage cavity from the first-stage opening.
Preferably, the primary locking mechanism and the locking mechanism are arranged on the same side of the quick-change bracket.
Preferably, the quick-change bracket assembly further comprises a plurality of supporting devices, and the supporting devices are arranged on one side of the quick-change bracket facing the battery pack and used for providing a plurality of supporting points for supporting the battery pack.
Preferably, the supporting device is provided with a supporting groove, and the lower surface of the supporting groove, the lower surface of the cavity and the lower surface of the primary cavity are located on the same plane.
The electric vehicle is characterized by comprising a battery pack and the quick-change bracket assembly, wherein the battery pack is arranged on the quick-change bracket assembly, and a lock shaft arranged on the battery pack is positioned in the cavity.
Preferably, the electric vehicle comprises a chassis, and the quick-change bracket assembly is fixed on the chassis.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
according to the locking mechanism for the battery pack, the quick-change bracket component and the electric vehicle, the reset component is arranged, so that the lock tongue can be conveniently reset from the unlocking state to the locking state, the battery pack is convenient to mount and lock, the lock tongue cannot be easily changed into the unlocking state under the action of the reset component, and the locking is more reliable; locking mechanism can provide second grade locking or locking protect function for the battery package, is used for preventing that the battery package from dropping when current device locking is invalid, improves the security performance.
Drawings
Fig. 1 is a perspective view schematically showing a lock mechanism according to embodiment 1 of the present invention.
Fig. 2 is a front view schematically showing a lock mechanism according to embodiment 1 of the present invention, in which a lock shaft is also shown.
Fig. 3 is a schematic cross-sectional view of a lock base according to embodiment 1 of the present invention.
Fig. 4 is an internal schematic view of a lock mechanism of embodiment 1 of the present invention, in which a lock base is shown in section.
Fig. 5 is a schematic plan view of a lock mechanism according to embodiment 1 of the present invention.
Fig. 6 is a perspective view of a restoring member according to embodiment 1 of the present invention.
Fig. 7 is a perspective view of an elastic member according to embodiment 1 of the present invention.
Fig. 8 is a partial schematic view of a quick-change holder assembly according to embodiment 1 of the present invention.
Fig. 9 is another partial schematic view of the quick-change holder assembly of embodiment 1 of the present invention, partially overlapping fig. 8.
Fig. 10 is a perspective view of a restoring member according to embodiment 2 of the present invention.
Description of reference numerals:
100: locking mechanism
110: lock base
111: opening of the container
112: hollow cavity
113: groove
114: unlocking hole
1141: step part
115: locating hole
116: mounting hole
120: lock tongue
130: reset component
131: contact part
132: connecting part
133: screw part
140: rotating shaft
150: inner limiting part
160: centering shaft
170: unlocking member
171: unlocking spring
172: unlocking head
173: unlocking lever
180: elastic component
181: elastic cushion
182: elastic handle
183: elastic head
190: locating pin
200: lock shaft
30: quick-change bracket assembly
300: one-level locking mechanism
310: first-level lock base
311: primary opening
312: primary cavity
320: one-level lock tongue
330: lock connecting rod
400: supporting device
500: quick-change bracket
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1-7, the present embodiment discloses a locking mechanism 100 for a battery pack (not shown). The lock mechanism 100 includes: lock base 110, locking bolt 120, and reset device 130. The lock base 110 has an opening 111 and a cavity 112 extending from the opening 111, and the opening 111 is used for the lock shaft 200 mounted on the battery pack to enter the cavity 112. The locking bolt 120 is rotatable relative to the lock base 110 to change between an unlocked state and a locked state. When the latch bolt 120 is in the locked state, i.e., the state shown in fig. 1, 2 and 4, the latch bolt 120 can prevent the lock shaft 200 from leaving the cavity 112 from the opening 111. The reset member 130 is provided on the lock base 110, the reset member 130 acts on the latch tongue 120, the reset member 130 is elastically deformable, and the reset member 130 is configured to rotate the latch tongue 120 in a locking direction to reset from an unlocked state to a locked state.
The embodiment also discloses a quick-change bracket assembly, which comprises a quick-change bracket and a locking mechanism 100, wherein the locking mechanism 100 is fixedly arranged on the quick-change bracket; the quick-change holder is generally a frame-shaped structure, and the locking mechanism 100 is fixed in the frame of the frame-shaped structure. The quick-change bracket may also be a plate-like structure, and the locking mechanism 100 may be fixed to a lower surface of the plate-like structure. Meanwhile, the embodiment further discloses an electric vehicle, which includes a chassis (not shown), a battery pack and a quick-change bracket assembly, wherein the quick-change bracket assembly is fixed on the chassis, the battery pack is mounted on the quick-change bracket assembly, and a lock shaft 200 mounted on the battery pack is located in the cavity 112.
In the above way, the reset component 130 is arranged to facilitate the reset of the lock tongue 120 from the unlocked state to the locked state, so that the battery pack is convenient to install and lock, and under the action of the reset component 130, the lock tongue 120 cannot be easily changed into the unlocked state, so that the lock is more reliable; the locking mechanism 100 can provide a secondary locking or locking protection function for the battery pack, and is used for preventing the battery pack from falling off when the locking of the existing device fails, so that the safety performance is improved.
As particularly shown in fig. 1-4, the opening 111 is preferably flared to facilitate entry of the lock shaft 200 into the cavity 112.
Referring to fig. 5-6, the restoring member 130 is a spring, and has a contact portion 131 and a connecting portion 132. The connecting portion 132 is disposed on the lock base 110, and the contact portion 131 contacts the latch bolt 120 to act on the latch bolt 120. The connection portion 131 is inserted into a hole of the lock base 110. Specifically, in the present embodiment, the reset component 130 is a torsion spring, the reset component 130 further has a spiral portion 133, the spiral portion 133 is connected to both the contact portion 131 and the connection portion 132, and both the contact portion 131 and the connection portion 132 can rotate around the spiral portion 133 to realize the elastic force variation. Specifically, the reset of the reset member 130 is realized by the elastic force change of the spiral part 133, so that the reset of the latch 120 to the locked state is realized. In an alternative embodiment, the reset component may not have a spiral portion, and the contact portion and the connection portion may be directly connected and bent, and the principle is similar to that of a spring plate, and the reset is realized by elastic deformation. In this embodiment, as shown in fig. 5 to 6, the contact portion 131 and the connection portion 132 are connected to both ends of the spiral portion 133, respectively.
Meanwhile, in order to limit the movement range of the spiral portion 133, the locking mechanism 100 further includes a rotating shaft 140, the rotating shaft 140 is disposed on the lock base 110, and the spiral portion 133 is sleeved on the rotating shaft 140. So that reset device 130 does not become disengaged from lock base 110 during use. In this embodiment, the rotating shaft 140 is formed by rolling a sheet, and is a hollow shaft.
As can be seen in fig. 1-2 and 4-5, reset device 130 is disposed above locking bolt 120. Compared with the structure that the reset part is arranged below the lock tongue, the resistance of the gravity of the lock tongue 120 to the reset of the reset part 130 can be avoided; in addition, this arrangement also facilitates access of lock shaft 200 into cavity 112 from below.
In addition, the locking mechanism 100 further includes an inner stopper 150, a centering shaft 160, an unlocking member 170, an elastic member 180, and a positioning pin 190. The lock base 110 is provided with a recess 113, an unlocking hole 114, a positioning hole 115, and a mounting hole 116. The following will be explained in detail with reference to the accompanying drawings.
As shown in fig. 3-4, when the locking tongue 120 is in the locked state, the inner limiting portion 150 abuts against the locking tongue 120 to prevent the locking tongue 120 from continuing to rotate in the locking direction. In this embodiment, the inner limiting portion 150 is an inner wall surface of the lock base 110 defining the cavity 112. Simple structure, ingenious does not need unnecessary part, can be used for guaranteeing that spring bolt 120 stops in the locking state.
As shown in fig. 1 and 3-5, a recess 113 is formed in the top of lock base 110, recess 113 is in communication with cavity 112, and restoring member 130 is at least partially disposed within recess 113. In the illustrated state, restoring member 130 is also partially disposed within cavity 112. The locking tongue 120 is at least partially located within the cavity 112 and the locking tongue 120 is able to enter the cavity 112 from the groove 113. So that the latch tongue 120 can be installed through the groove 113. The latch tongue 120 can enter and exit the groove 113 during the transition between the locked state and the unlocked state.
As shown in fig. 1-2 and 4, the centering shaft 160 is disposed on the lock base 110, the centering shaft 160 is disposed through the bolt 120, and the bolt 120 can rotate around the centering shaft 160.
As shown in fig. 2 to 5, the unlocking member 170 is disposed in the unlocking hole 114, and one end of the unlocking member 170 contacts the latch tongue 120. The unlocking member 170 can act on the latch bolt 120 to rotate the latch bolt 120 in an unlocking direction to change from the latched state to the unlatched state, so that the unlocking member 170 conveniently completes unlocking. In the orientation of the figure, the right end of the unlocking member 170 contacts the latch tongue 120, and the unlocking direction is counterclockwise. Specifically, the unlocking member 170 includes an unlocking spring 171, and an unlocking head 172 and an unlocking lever 173 connected to each other. The unlocking hole 114 is a stepped hole, a stepped portion 1141 is provided in the unlocking hole 114, and an inner diameter of an inner end of the unlocking hole 114 is smaller than an inner diameter of an outer end of the unlocking hole 114. The unlocking spring 171 is at least partially located in the unlocking hole 114, and two ends of the unlocking spring 171 abut against the unlocking head 172 and the step 1141, respectively. At the initial stage of unlocking, as shown in fig. 4, both ends of the unlocking spring 171 are not yet abutted against the unlocking head 172 and the step 1141, but as the unlocking member 170 moves from left to right, both ends of the unlocking spring 171 are abutted against the unlocking head 172 and the step 1141. The unlocking spring 171 plays a role in buffering, and after unlocking is completed, the unlocking spring 171 can also enable the unlocking head 172 and the unlocking lever 173 to reset to the left by means of self elastic force, so that interference on clockwise rotation and resetting of the lock tongue 120 to a locking state is avoided.
As shown in fig. 4 and 7, the elastic member 180 is at least partially located in the cavity 112, and the elastic member 180 is configured to abut against the lock shaft 200. The elastic member 180 does not necessarily need to be in contact with the lock shaft 200, but once in contact, the lock shaft 200 may be prevented from rigidly colliding with the lock base 110. Specifically, the elastic member 180 includes an elastic pad 181, an elastic handle 182, and an elastic head 183. A resilient pad 181 is located within the cavity 112, the resilient pad 181 being adapted to abut the lock shaft 200. The elastic handle 182 and the elastic head 183 are connected in sequence, the elastic handle 182 is inserted into the lock base 110, and the wall of the lock base 110 is clamped between the elastic pad 181 and the elastic head 183. So that the entire elastic member 180 can be stably mounted to the lock base 110. The elastic member 180 is preferably made of rubber.
As shown in fig. 5, the positioning pin 190 is partially located outside the positioning hole 115, and the positioning pin 190 is in interference fit with the positioning hole 115. The locating pin 190 may be used for locating when the locking mechanism 100 is mounted to a quick-change holder.
As shown in fig. 3, the mounting holes 116 are preferably threaded holes. Threaded fasteners may be passed through mounting holes 116 to mount locking mechanism 100 to the quick-change holder.
Next, referring mainly to fig. 2 and 4, the operation of the locking mechanism 100 will be briefly described, mainly including an unlocking process and a locking process, wherein the initial state is a locked state.
An unlocking process: applying a force to the right to unlock head 172, unlock lever 173 acts on locking bolt 120, causing locking bolt 120 to rotate in a counterclockwise direction; the latch 120 acts on the contact portion 131 of the reset unit 130, so that the elastic force of the reset unit 130 is changed; after the latch bolt 120 rotates to a certain angle, a channel for the lock shaft 200 to pass through is formed in the cavity 112; the lock shaft 200 can move from right to left and then down through the opening 111, leaving the locking mechanism 100.
And (3) locking process: the lock shaft 200 moves upwards under the action of external force and enters the cavity 112 through the opening 111, and the lock shaft 200 acts on the bolt 120 to enable the bolt 120 to rotate around the counterclockwise direction; the latch 120 acts on the contact portion 131 of the reset unit 130, so that the elastic force of the reset unit 130 is changed; after the bolt 120 rotates to a certain angle, a channel for the lock shaft 200 to pass through is formed in the cavity 112, and the lock shaft 200 can move from left to right; until the lock shaft 200 is no longer in contact with the latch bolt 120, the latch bolt 120 rotates clockwise under the action of the reset component 130, and is reset to the locked state.
Referring now to fig. 8 and 9, the quick-change holder assembly 30 is described with the locking mechanism 100 as a secondary locking mechanism and further including a primary locking mechanism 300.
The primary locking mechanism 300 includes a lock link 330, at least one primary locking bolt 320, and at least one primary lock base 310. The primary lock base 310 is fixedly arranged on the quick-change bracket 500. In this embodiment, two sides of the quick-change holder 500 are respectively provided with 3 first-stage lock bases 310 and 3 first-stage locking tongues 320. Fig. 8 and 9 are partial schematic views of one side thereof.
The primary lock base 310 is provided with a primary opening 311 and a primary cavity 312 extending from the primary opening 311, wherein the primary opening 311 is used for allowing a primary lock shaft (the structure of which is the same as or similar to the lock shaft 200) installed on the battery pack to enter the primary cavity 312. The lock link 330 is rotatably connected to at least one first-stage latch tongue 320, and is configured to drive the first-stage latch tongue 320 to rotate under an external force, so that the first-stage latch tongue 320 can rotate relative to the first-stage lock base 310 to change between a first-stage unlocked state and a first-stage locked state. When the first-stage locking tongue 320 is in the first-stage locking state, the first-stage locking tongue 320 can prevent the first-stage lock shaft from leaving the first-stage cavity 312 from the first-stage opening 311. The "primary lock state" refers to a state in which the primary lock mechanism 300 is locked; the "primary unlock state" refers to an unlocked state of the primary lock mechanism 300.
The primary locking mechanism 300 and the locking mechanism 100 are arranged on the same side of the quick-change bracket 500. The side on which the primary locking mechanism 300 is provided is also provided with the locking mechanism 100; if both sides are provided with primary locking mechanisms 300, then both sides are also provided with locking mechanisms 100. In this embodiment, the first-stage locking mechanism 300 and the locking mechanism 100 are disposed on two inner sides of the quick-change bracket 500, i.e., two inner sides facing the battery pack.
Furthermore, the quick-change cradle assembly 30 further comprises a plurality of support means 400, the support means 400 being provided on a side of the quick-change cradle 500 facing the battery pack for providing a plurality of support points for supporting the battery pack. The support device 400 is also located on the same side as the primary locking mechanism 300 and the locking mechanism 100. Fig. 8 and 9 show the primary locking mechanism 300 in registration, and fig. 8 and 9 show the support device 400 in a different position.
In this embodiment, the support device 400 is similar to the lock base 110 in structure, and has no locking function, and serves only as a support platform for the battery pack. In other embodiments, other similar support mechanisms having a support platform may be suitable. The number of the supporting devices 400 may be adjusted according to the weight of the actual battery pack, preferably to an average weight of not more than 25KG per supporting device 400.
The support device 400 is provided with a support groove, and the lower surface of the support groove is positioned on the same plane with the lower surface of the cavity 112 and the lower surface of the primary cavity 312. The lower surfaces of the supporting grooves, the cavity 112 and the primary cavity 312 are all surfaces close to the ground when in use, and bear the supporting function of the special locking shaft for supporting the battery pack, the locking shaft 200 and the primary locking shaft, and the battery pack can stably move due to the fact that the lower surfaces of the supporting grooves, the cavity 112 and the primary cavity 312 are located on the same plane.
The primary locking mechanism 300 is substantially synchronized with the unlocking and locking processes of the locking mechanism 100.
Example 2
This embodiment discloses a locking mechanism for a battery pack, which is substantially similar to embodiment 1 in structure, except that the structure of the reset device 130 is different from embodiment 1.
In this embodiment, as shown in fig. 10, the restoring member 130 includes two connecting portions 132, two spiral portions 133, and one contact portion 131. The two connecting portions 132 are connected to the outer sides of the two spiral portions 133, respectively, and the contact portion 131 is connected between the two spiral portions 133.
In describing the present invention, an embodiment may be provided with multiple figures, and reference numerals for like parts of the same embodiment are not necessarily shown in each figure; it will be appreciated by those skilled in the art that while one or more figures in an embodiment are described, they may be understood in conjunction with other figures in the embodiment; it will be understood by those skilled in the art that when no specific reference is made to which figure the text specifically corresponds, the text can be understood in conjunction with all of the figures in the embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (24)
1. A locking mechanism for a battery pack, said locking mechanism comprising:
the lock base is provided with an opening and a cavity extending from the opening, and the opening is used for allowing a lock shaft mounted on the battery pack to enter the cavity;
a locking bolt rotatable relative to the lock base to change between an unlocked state and a locked state, the locking bolt being capable of preventing the lock shaft from exiting the cavity from the opening when the locking bolt is in the locked state; and
the reset component is arranged on the lock base and acts on the lock tongue, the reset component can be elastically deformed, and the reset component is used for enabling the lock tongue to rotate along a locking direction to reset from the unlocking state to the locking state;
the lock base still is equipped with the unlocking hole, locking mechanism still includes the unblock part, the unblock part is located the unlocking hole, just the one end of unblock part with the spring bolt contacts, the unblock part can act on the spring bolt is so that the spring bolt is rotatory in order to follow along an unblock direction the locking state changes to the unblock state.
2. The lock mechanism of claim 1, further comprising an inner limit portion, wherein when the locking bolt is in the locked state, the inner limit portion abuts against the locking bolt to prevent the locking bolt from continuing to rotate in the locking direction.
3. The lock mechanism of claim 2, wherein the internal restraint is an interior wall surface of the lock base that defines the cavity.
4. The latch mechanism of claim 1, further comprising a centering shaft disposed on the lock base and extending through the locking bolt, wherein the locking bolt is rotatable about the centering shaft.
5. The lock mechanism of claim 1, wherein the return member is a spring, the return member having a contact portion and a connecting portion, the connecting portion being disposed on the lock base, the contact portion contacting the latch tongue to act on the latch tongue.
6. The lock mechanism of claim 5, wherein the return member is a torsion spring, the return member further having a coil portion connected to both the contact portion and the connecting portion, the contact portion and the connecting portion being rotatable about the coil portion to vary the spring force.
7. The lock mechanism of claim 6, further comprising a shaft disposed on the lock base, wherein the screw is disposed on the shaft.
8. The latch mechanism of claim 1 wherein said reset member is disposed above said latch bolt.
9. The lock mechanism of claim 8, wherein the lock base includes a recess in a top portion thereof, the recess communicating with the cavity, and the reset device being at least partially disposed in the recess.
10. The latch mechanism of claim 9, wherein said locking bolt is at least partially disposed within said cavity, said locking bolt being capable of entering said cavity from said recess.
11. The locking mechanism of claim 1, wherein the unlocking member comprises an unlocking spring, and an unlocking head and an unlocking rod which are connected with each other, the unlocking hole is a stepped hole, a step portion is arranged in the unlocking hole, the inner diameter of the inner end of the unlocking hole is smaller than the inner diameter of the outer end of the unlocking hole, the unlocking spring is at least partially located in the unlocking hole, and two ends of the unlocking spring abut against the unlocking head and the step portion respectively.
12. The locking mechanism of claim 1, further comprising a resilient member at least partially disposed within the cavity, the resilient member configured to abut the lock shaft.
13. The locking mechanism of claim 12, wherein said resilient member comprises a resilient pad positioned within said cavity, said resilient pad adapted to abut said lock shaft.
14. The locking mechanism of claim 13, wherein the resilient member further comprises a resilient handle portion and a resilient head portion, the resilient handle portion and the resilient head portion are sequentially connected, the resilient handle portion is disposed through the lock base, and the wall portion of the lock base is engaged between the resilient pad and the resilient head portion.
15. The locking mechanism of claim 1, wherein the lock base defines a locating hole, the locking mechanism further comprising a locating pin partially disposed outside the locating hole, the locating pin having an interference fit with the locating hole.
16. The locking mechanism of claim 1, wherein the lock base is provided with a mounting hole, the mounting hole being a threaded hole.
17. The lock-out mechanism of any of claims 1 to 16, wherein the opening is a flare.
18. A quick-change holder assembly, characterized in that it comprises a quick-change holder and a locking mechanism according to any one of claims 1-17, which is fixedly arranged to the quick-change holder.
19. The quick-change bracket assembly of claim 18, further comprising a primary locking mechanism, the first-stage locking mechanism comprises a lock connecting rod, at least one first-stage lock tongue and at least one first-stage lock base, the primary lock base is fixedly arranged on the quick-change bracket, the primary lock base is provided with a primary opening and a primary cavity extending from the primary opening, the primary opening is used for allowing a primary lock shaft arranged on the battery pack to enter the primary cavity, the lock connecting rod is rotatably connected with at least one primary lock tongue, is used for driving the first-stage lock tongue to rotate under the action of external force, so that the first-stage lock tongue can rotate relative to the first-stage lock base to change between a first-stage unlocking state and a first-stage locking state, when the first-stage spring bolt is in the first-stage locking state, the first-stage spring bolt can prevent the first-stage lock shaft from leaving the first-stage cavity from the first-stage opening.
20. The quick-change holder assembly according to claim 19, wherein the primary locking mechanism and the locking mechanism are disposed on the same side of the quick-change holder.
21. The quick-change bracket assembly according to claim 20, further comprising a plurality of support means provided on a side of the quick-change bracket facing the battery pack for providing a plurality of support points for supporting the battery pack.
22. The quick-change bracket assembly according to claim 21, wherein the support means is provided with a support slot having a lower surface that is coplanar with the lower surface of the cavity and the lower surface of the primary cavity.
23. An electric vehicle comprising a battery pack and a quick-change bracket assembly according to any one of claims 18-22, the battery pack being mounted to the quick-change bracket assembly with a latch shaft mounted to the battery pack located in the cavity.
24. The electric vehicle of claim 23, wherein the electric vehicle includes a chassis, and wherein the quick-change bracket assembly is secured to the chassis.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478821.6A CN110001372B (en) | 2017-12-29 | 2017-12-29 | Locking mechanism for battery pack, quick-change bracket assembly and electric vehicle |
| CN202210501976.1A CN114801859A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
| CN202210503569.4A CN114714965A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
| PL18895455.6T PL3733435T3 (en) | 2017-12-29 | 2018-12-29 | Locking mechanism, lock assembly, quick-swap support frame assembly and electric vehicle |
| EP18895455.6A EP3733435B1 (en) | 2017-12-29 | 2018-12-29 | Locking mechanism, lock assembly, quick-swap support frame assembly and electric vehicle |
| PCT/CN2018/125689 WO2019129289A1 (en) | 2017-12-29 | 2018-12-29 | Locking mechanism for use in battery pack, lock assembly, quick-swap support frame assembly, and electric vehicle |
| ES18895455T ES2939953T3 (en) | 2017-12-29 | 2018-12-29 | Lock mechanism, lock assembly, quick change support frame assembly and electric vehicle |
| JP2020536563A JP7294619B2 (en) | 2017-12-29 | 2018-12-29 | Lock-up mechanism for battery pack, lock unit, quick change holder assembly, and electric vehicle |
| EP22208274.5A EP4159508A1 (en) | 2017-12-29 | 2018-12-29 | Locking mechanism for a battery pack, quick-swap support frame assembly and electric vehicle |
| EP22208314.9A EP4159509A1 (en) | 2017-12-29 | 2018-12-29 | Quick-swap support frame assembly with locking mechanism and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478821.6A CN110001372B (en) | 2017-12-29 | 2017-12-29 | Locking mechanism for battery pack, quick-change bracket assembly and electric vehicle |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210503569.4A Division CN114714965A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
| CN202210501976.1A Division CN114801859A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110001372A CN110001372A (en) | 2019-07-12 |
| CN110001372B true CN110001372B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711478821.6A Active CN110001372B (en) | 2017-12-29 | 2017-12-29 | Locking mechanism for battery pack, quick-change bracket assembly and electric vehicle |
| CN202210501976.1A Pending CN114801859A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
| CN202210503569.4A Pending CN114714965A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210501976.1A Pending CN114801859A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
| CN202210503569.4A Pending CN114714965A (en) | 2017-12-29 | 2017-12-29 | A locking mechanism, quick change bracket component and electric motor car for battery package |
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| CN (3) | CN110001372B (en) |
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| CN112297939B (en) * | 2019-07-26 | 2022-05-03 | 浙江吉智新能源汽车科技有限公司 | Locking mechanism |
| CN112440708B (en) * | 2019-08-30 | 2024-06-18 | 奥动新能源汽车科技有限公司 | Battery pack anti-drop system and battery pack bracket comprising same |
| CN111347861B (en) * | 2019-09-30 | 2024-05-03 | 博众精工科技股份有限公司 | Trade electric locking mechanism, add unlocking device, electric motor car |
| CN110667432B (en) * | 2019-10-10 | 2020-11-10 | 南京荧河谷科技有限公司 | Battery module convenient to dismouting |
| CN113119707B (en) * | 2019-12-31 | 2024-07-02 | 奥动新能源汽车科技有限公司 | Locking mechanism for battery pack, quick-change bracket assembly and electric automobile |
| CN113479050A (en) * | 2020-03-17 | 2021-10-08 | 奥动新能源汽车科技有限公司 | Battery pack locking mechanism, bracket assembly, electric automobile and battery pack locking method |
| CN113415144B (en) * | 2020-03-17 | 2024-07-02 | 奥动新能源汽车科技有限公司 | Battery pack locking mechanism, bracket assembly, electric automobile and battery pack locking method |
| CN111703331B (en) * | 2020-06-12 | 2022-04-26 | 北京新能源汽车股份有限公司 | Quick-change power battery installation system, locking method, unlocking method and electric automobile |
| CN111703290B (en) * | 2020-06-12 | 2022-04-12 | 北京新能源汽车股份有限公司 | Locking mechanism assembly, locking method, unlocking method and electric automobile |
| CN111599962A (en) * | 2020-06-23 | 2020-08-28 | 中科卫蓝新能源汽车科技(江苏)有限公司 | Quick change subassembly of rechargeable battery |
| CN114056072A (en) * | 2020-08-04 | 2022-02-18 | 奥动新能源汽车科技有限公司 | Unlocking mechanism, locking method and unlocking method of battery pack |
| CN114074539A (en) * | 2020-08-10 | 2022-02-22 | 奥动新能源汽车科技有限公司 | Locking mechanism, battery bracket, electric automobile and battery pack locking and unlocking method |
| EP3998672B1 (en) * | 2020-09-30 | 2023-10-11 | Contemporary Amperex Technology Co., Limited | Holder, battery assembly, and power utilization device |
| CN112193046A (en) * | 2020-10-30 | 2021-01-08 | 深圳精智机器有限公司 | Locking mechanism, electric vehicle and locking method |
| CN113561845B (en) * | 2021-08-17 | 2023-12-08 | 一汽解放汽车有限公司 | Bracket structure and locking assembly thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114801859A (en) | 2022-07-29 |
| CN114714965A (en) | 2022-07-08 |
| CN110001372A (en) | 2019-07-12 |
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