CN114834234A

CN114834234A - Battery mounting structure of new energy automobile

Info

Publication number: CN114834234A
Application number: CN202210658592.0A
Authority: CN
Inventors: 王会会
Original assignee: Taizhou Zhiletu New Energy Co ltd
Current assignee: Taizhou Zhiletu New Energy Co ltd
Priority date: 2022-06-11
Filing date: 2022-06-11
Publication date: 2022-08-02

Abstract

The invention belongs to the technical field of new energy automobiles, and relates to a battery mounting structure of a new energy automobile, which comprises a frame, a portable battery assembly and a locking mechanism, wherein a battery bin for accommodating the portable battery assembly is arranged on the side of the frame, a pair of guide rails is arranged on the inner side wall of the battery bin, and sliding grooves matched with the guide rails to slide are arranged on two sides of the portable battery assembly; the bottom of the portable battery component is provided with a foldable bracket, and the foldable bracket is folded when entering the battery compartment and unfolded after being separated from the battery compartment; the locking mechanism is fixed on the frame and comprises a locking block capable of switching locking and unlocking states, and a locking pin matched with the locking block for locking is arranged at the rear end of the portable battery pack. The battery mounting structure of the new energy automobile provided by the invention can be used for conveniently loading and unloading the battery.

Description

Battery mounting structure of new energy automobile

Technical Field

The invention belongs to the technical field of new energy automobiles, and relates to a battery mounting structure of a new energy automobile.

Background

The endurance mileage of the new energy automobile is related to the storage capacity of the battery pack carried by the new energy automobile. The battery pack of the new energy automobile needs to be rapidly replaced for various reasons. For example: disassembling the battery for charging; battery failure requires maintenance; replacement of the fitting … … is required at the end of battery life

The battery of the existing new energy automobile needs to enter a special maintenance place to be disassembled and replaced, and meanwhile, a special tool is needed during disassembling and replacing, in addition, the battery is heavy, and the battery is not easy to move.

The Chinese patent application CN 114290904A discloses a new energy automobile battery replacing method and a portable replacing device, which comprises a chassis, wherein a walking device is arranged on the bottom surface of the chassis, a rotating assembly is arranged on the top surface of the chassis, a first receiving assembly and a second receiving assembly are arranged on the rotating assembly, the first receiving assembly and the second receiving assembly are arranged side by side, the first receiving assembly is used for disassembling and receiving a battery pack on an automobile, the second receiving assembly is used for installing a standby battery pack to be replaced, and the first receiving assembly and the second receiving assembly can be folded and contracted and are placed on the rotating assembly.

Although the above patent has made things convenient for new energy automobile battery's change and removal, still need special receiving equipment, and receiving equipment structure is complicated.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a battery mounting structure of a new energy automobile, which can conveniently load and unload batteries.

In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:

a battery mounting structure of a new energy automobile comprises a frame, a portable battery assembly and a locking mechanism, wherein a battery bin for accommodating the portable battery assembly is arranged on the side of the frame, a pair of guide rails is arranged on the inner side wall of the battery bin, and sliding grooves matched with the guide rails to slide are arranged on two sides of the portable battery assembly; the bottom of the portable battery component is provided with a foldable bracket, and the foldable bracket is folded when entering the battery compartment and unfolded after being separated from the battery compartment; the locking mechanism is fixed on the frame and comprises a locking block capable of switching locking and unlocking states, and a locking pin matched with the locking block for locking is arranged at the rear end of the portable battery pack.

In the battery mounting structure of the new energy automobile, the two battery bins are symmetrically arranged and are respectively located on the left side and the right side of the frame, a portable battery assembly is contained in each battery bin, the locking mechanism is fixed on the frame between the two battery bins, and mechanisms for respectively locking and unlocking the two portable battery assemblies are arranged.

In the battery mounting structure of the new energy automobile, a plurality of lower rollers are arranged at the bottom in the battery compartment, and the lower rollers are in rolling connection with the bottom of the portable battery component; the portable battery pack is characterized in that a plurality of upper rollers are arranged on the guide rail, each upper roller comprises a plurality of vertical rollers with axes distributed along the vertical direction and a plurality of transverse rollers with axes distributed along the length direction of the automobile, and the upper rollers are connected with the sliding groove of the portable battery pack in a rolling manner. Further, the guide rail has a pointed end.

In the battery mounting structure of the new energy automobile, the front end of the portable battery component is provided with a plugging groove, a power supply plugging seat is arranged in the plugging groove, a power plug electrically connected with the power supply plugging seat is fixed on the frame, clamping heads are arranged on two sides of the power plug, and clamping grooves matched with the clamping heads are arranged on two sides of the power supply plugging seat. Furthermore, a power plug mounting plate is fixed on the frame, and the power plug is fixed on the power plug mounting plate.

In the battery mounting structure of the new energy automobile, the foldable support comprises a mounting seat, a support plate and a roller assembly, the support plate is hinged to the front side of the bottom of the mounting seat, the roller assembly is located on the rear side of the support plate and hinged to the battery shell, the support plate and the roller assembly can be turned backwards and folded at the bottom of the portable battery assembly, a driving assembly for driving the support plate to unfold is arranged between the rear side face of the support plate and the bottom of the mounting seat, a connecting rod mechanism for driving the roller assembly to be linked is arranged between the support plate and the roller assembly, and a telescopic pull rod is arranged at the rear end of the portable battery assembly.

In the above battery installation structure of a new energy automobile, the driving assembly includes a foldable driving plate, the driving plate is stretched by a torsion spring, and other structures, such as a gas spring, can also be used for the driving assembly.

In the battery mounting structure of the new energy automobile, the roller assemblies comprise roller supports which are arranged oppositely, and walking rollers are arranged at the bottoms of the roller supports.

In foretell new energy automobile's battery mounting structure, the bottom in battery compartment is provided with the bottom plate, the middle part front side of bottom plate is provided with the lug that extends to battery compartment entrance, the middle part of backup pad be provided with lug complex movable block, lug extrusion movable block is in order to fold the backup pad when portable battery pack puts into battery compartment.

In foretell new energy automobile's battery mounting structure, the bottom and both sides of movable block are provided with the fretwork groove with backup pad separation, and the upper end and the backup pad of movable block are connected. Preferably, the movable block and the support plate are integrally formed.

In foretell new energy automobile's battery mounting structure, locking mechanism is including fixing locking seat, acting as go-between and the locking piece on the frame, the locking piece is including locking the casing, the middle part of locking the casing is provided with the locking groove that holds the stop pin, and it has first lockplate and second lockplate to articulate respectively on the locking casing of locking groove both sides, be provided with the locking fixture block of mutually supporting on first lockplate and the second lockplate, the lower extreme of first lockplate with act as go-between and be connected, the upper end of second lockplate is provided with the tapered end that can seal the locking groove, be provided with the first torsional spring of drive first lockplate to the opposite direction pivoted of acting as go-between first lockplate and the locking casing, be provided with drive second lockplate to unblock direction pivoted second torsional spring between second lockplate and the locking casing.

In the battery installation structure of the new energy automobile, the locking pins are arranged in the insertion grooves and distributed along the length direction of the frame; the locking seats are distributed along the horizontal direction; the locking block is perpendicular to the locking pin.

In the battery mounting structure of the new energy automobile, an unlocking block is hinged to the locking seat, a first movable end of the unlocking block is connected with a first pull wire and a second pull wire, the first pull wire is connected with a manual unlocking button, the second pull wire is connected with a first locking plate, and the manual unlocking button drives the unlocking block to rotate towards an unlocking direction through the first pull wire and simultaneously pulls the second pull wire to unlock; the second expansion end of the unlocking block is connected with an electric unlocking mechanism in an abutting mode, and the electric unlocking mechanism drives the unlocking block to rotate towards the unlocking direction and simultaneously pulls the second pull wire to unlock.

In foretell new energy automobile's battery mounting structure, electric unlocking mechanism includes the electric unlocking casing, is provided with the flexible piston rod of motor and motor drive in the electric unlocking casing, and is preferred, the piston rod is radial spacing and the one end of establishing at the electric unlocking casing of sliding, be provided with the elastic component that resets between piston rod and the electric unlocking casing, the circular motion of motor shaft is turned into the linear motion of piston rod to the drive mechanism of motor and piston rod. The electric unlocking mechanism can also use other devices, such as a piston rod driven by an electromagnet.

In foretell new energy automobile's battery mounting structure, the below of locking casing is provided with signal sensor, signal sensor is provided with metal shrapnel and contact with the relative terminal surface of locking casing, the lower terminal surface of second lockplate is contradicted with metal shrapnel and is connected and make metal shrapnel and contact when second lockplate is in the locking state, the lower terminal surface of second lockplate breaks away from with metal shrapnel and is connected and make metal shrapnel and contact break away from when second lockplate is in the unblock state.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a battery mounting structure of a new energy automobile, which can conveniently assemble, disassemble and move batteries without using additional tools by designing a portable battery assembly and assisting a frame and a locking mechanism which are matched with the portable battery assembly.

2. The portable battery pack has high automation degree, and when the portable battery pack is installed, the foldable support can be automatically folded towards the bottom; the foldable support can also be automatically unfolded when the portable battery pack is pulled out. Further, the unfolded support plate and the roller assemblies form a portable support structure; the pull rod and the roller component are matched to form a portable moving structure. In addition, the driving assembly can also support the unfolded supporting plate and the roller assembly, so that the supporting plate and the roller assembly have higher strength.

3. The invention provides a novel locking mechanism which is simple in structure and convenient to use, and can be automatically locked after a portable battery pack is pushed into a battery compartment; meanwhile, the unlocking can be conveniently carried out. Furthermore, the locking mechanism provided by the invention has two unlocking modes of manual unlocking and electric unlocking, and can be conveniently switched in use.

4. The invention provides a novel frame structure, and in order to better replace a portable battery assembly, a guide rail and a roller structure are arranged in a battery bin, so that the portable battery assembly can be better moved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a perspective view of the vehicle frame of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a perspective view of the guide rail of the present invention;

FIG. 6 is a perspective view of the locking mechanism of the present invention;

FIG. 7 is a perspective view of the locking block of the present invention;

FIG. 8 is an internal perspective view of the locking block of the present invention in a locked condition;

FIG. 9 is an internal perspective view of the locking block of the present invention in an unlocked condition;

FIG. 10 is a perspective view of the electric release mechanism of the present invention;

FIG. 11 is a perspective view of a portable battery pack of the present invention;

FIG. 12 is a perspective view of a foldable stand in a folded state according to the present invention

FIG. 13 is a cross-sectional view of the foldable stand of the present invention in an unfolded state;

FIG. 14 is a perspective view of the power plug of the present invention;

reference numerals: 1. a frame; 11. a battery compartment; 12. a guide rail; 13. a lower roller; 14. an upper roller; 141. a vertical roller; 142. a transverse roller; 15. a power plug; 151. clamping a head; 16. a base plate; 161. a bump; 2. a portable battery assembly; 21. a chute; 22. a foldable support; 221. a mounting seat; 222. a support plate; 223. a roller assembly; 224. drive assembly, 225, link mechanism; 226. a movable block; 23. a locking pin; 24. inserting grooves; 25. a power supply socket; 251. a card slot; 26. a pull rod; 3. a locking mechanism; 31. a locking seat; 32. a locking block; 321. a lock housing; 322. a locking groove; 323. a first locking plate; 324. a second locking plate; 325. locking the fixture block; 326. a lock head; 327. a first torsion spring; 328. a second torsion spring; 33. a pull wire; 331. a first pull wire; 332. a second pull wire; 34. unlocking the block; 35. a manual unlock button; 36. an electric unlocking mechanism; 361. an electrically unlocked housing; 362. a piston rod; 37. a signal sensor; 371. a metal spring sheet; 372. and (4) a contact.

Detailed Description

The invention is further described in the following detailed description of embodiments in conjunction with the drawings, see fig. 1-14:

a battery mounting structure of a new energy automobile comprises a frame 1, a portable battery pack 2 and a locking mechanism 3, wherein a battery bin 11 for accommodating the portable battery pack 2 is arranged on the side of the frame 1, a pair of guide rails 12 are arranged on the inner side wall of the battery bin 11, and sliding grooves 21 matched with the guide rails 12 to slide are arranged on two sides of the portable battery pack 2; a foldable bracket 22 is arranged at the bottom of the portable battery component 2, and the foldable bracket 22 is folded when entering the battery compartment 11 and unfolded after being separated from the battery compartment 11; the locking mechanism 3 is fixed on the vehicle frame 1 and comprises a locking block 32 capable of switching locking and unlocking states, and the rear end of the portable battery component 2 is provided with a locking pin 23 matched and locked with the locking block 32.

The using method of the invention is as follows: when the portable battery assembly 2 needs to be installed, the sliding groove 21 of the portable battery assembly 2 is aligned with the guide rail 12 in the battery compartment 11, the portable battery assembly 2 is pushed inwards, the foldable support 22 is in a folded state when being pushed in, and when the foldable support is pushed to a set position, the locking block 32 is locked with the locking pin 23 to lock the portable battery assembly 2, and the portable battery assembly 2 is installed as shown in fig. 1; when it is necessary to detach the portable battery assembly 2, the locking block 32 is unlocked so that the locking block 32 is separated from the locking pin 23, and the portable battery assembly 2 is unlocked, the portable battery assembly 2 is pulled out, and the foldable support 22 is unfolded.

In order to provide more battery capacity and balance the weight of the vehicle body, two battery bins 11 are symmetrically arranged and are respectively positioned at the left side and the right side of the vehicle frame 1, a portable battery assembly 2 is accommodated in each battery bin 11, the locking mechanism 3 is fixed on the vehicle frame 1 between the two battery bins 11, and mechanisms for respectively locking and unlocking the two portable battery assemblies 2 are arranged.

Referring to fig. 3, 4 and 5, a plurality of lower rollers 13 are arranged at the bottom inside the battery compartment 11, and the lower rollers 13 are in rolling connection with the bottom of the portable battery assembly 2; the upper rollers 14 are arranged on the guide rails 12, each upper roller 14 comprises a plurality of vertical rollers 141 with axes distributed along the vertical direction and a plurality of transverse rollers 142 with axes distributed along the length direction of the automobile, the upper rollers 14 are in rolling connection with the sliding grooves 21 of the portable battery assemblies 2, and the upper rollers 14 and the lower rollers 13 are used for reducing friction force when the portable battery assemblies 2 enter. Further, the guide rail 12 has a pointed end so that the guide rail 12 can be more easily inserted into the slide groove 21.

Referring to fig. 2, 11 and 14, an insertion groove 24 is provided at the front end of the portable battery assembly 2, a power supply insertion socket 25 is provided in the insertion groove 24, a power plug 15 electrically connected to the power supply insertion socket 25 is fixed on the frame 1, two sides of the power plug 15 are provided with clamping heads 151, and two sides of the power supply insertion socket 25 are provided with clamping grooves 251 matched with the clamping heads 151. Furthermore, a power plug 15 mounting plate is fixed on the frame 1, and the power plug 15 is fixed on the power plug 15 mounting plate. When the portable battery assembly 2 is pushed into the set position, the power supply jack 25 is electrically connected to the power plug 15.

Referring to fig. 11, the foldable support 22 includes a mounting seat 221, a support plate 222 and a roller assembly 223, the support plate 222 is hinged to the front side of the bottom of the mounting seat 221, the roller assembly 223 is located behind the support plate 222 and hinged to the battery housing, the support plate 222 and the roller assembly 223 are both capable of being turned over backwards and folded at the bottom of the portable battery assembly 2, a driving assembly 224 for driving the support plate 222 to unfold is disposed between the rear side of the support plate 222 and the bottom of the mounting seat 221, a link mechanism 225 for driving the roller assembly 223 to link is disposed between the support plate 222 and the roller assembly 223, and the rear end of the portable battery assembly 2 is provided with a telescopic pull rod 26.

Referring to fig. 13, the drive assembly 224 includes a foldable drive plate that is spread apart by a torsion spring, and other configurations of the drive assembly 224, such as a gas spring, can be used.

Further, the roller assembly 223 includes a roller bracket disposed opposite to each other, and a walking roller is disposed at the bottom of the roller bracket.

Referring to fig. 4, further, a bottom plate 16 is disposed at the bottom of the battery compartment 11, a protrusion 161 extending toward the inlet of the battery compartment 11 is disposed at the front side of the middle portion of the bottom plate 16, a movable block 226 engaged with the protrusion 161 is disposed at the middle portion of the supporting plate 222, and the protrusion 161 presses the movable block 226 to fold the supporting plate 222 when the portable battery assembly 2 is placed in the battery compartment 11.

Referring to fig. 11, further, the bottom and two sides of the movable block 226 are provided with hollow grooves separated from the support plate 222, and the upper end of the movable block 226 is connected to the support plate 222. Preferably, the movable block 226 is integrally formed with the support plate 222.

The foldable support 22 of the present invention is used as follows: when the portable battery component 2 is installed, the inlet of the battery compartment 11 extrudes the foldable support 22, and the movable block 226 and the projection 161 are arranged to better act on the foldable support 22, so that the roller component 223 and the support plate 222 are turned over towards the rear side, and after the portable battery component 2 is completely placed in the battery compartment 11, the support plate 222 and the roller component 223 are folded at the bottom of the portable battery component 2; when the portable battery component 2 is disassembled, the portable battery component 2 is pulled out from the battery compartment 11, the pulled-out foldable support 22 is unfolded, and the unfolded support plate 222 and the roller component 223 form a portable support structure; when moving, the pull rod 26 is pulled out, and the pull rod 26 and the roller assembly 223 are matched to form a portable moving structure.

Referring to fig. 6, the locking mechanism 3 includes a locking seat 31 fixed to the frame 1, a pulling wire 33 and a locking block 32, the locking block 32 comprises a locking shell 321, a locking groove 322 for accommodating the locking pin 23 is arranged in the middle of the locking shell 321, a first locking plate 323 and a second locking plate 324 are respectively hinged on the locking shell 321 at two sides of the locking groove 322, the first locking plate 323 and the second locking plate 324 are provided with locking blocks 325 which are engaged with each other, the lower end of the first locking plate 323 is connected with the wire 33, the upper end of the second locking plate 324 is provided with a locking head 326 capable of closing the locking groove 322, a first torsion spring 327 for driving the first locking plate 323 to rotate in the opposite direction of the wire 33 is disposed between the first locking plate 323 and the locking housing 321, a second torsion spring 328 for driving the second locking plate 324 to rotate in the unlocking direction is provided between the second locking plate 324 and the locking housing 321.

Referring to fig. 8 and 9, the locking and unlocking modes of the present invention are as follows: before the portable battery pack 2 is installed, the locking mechanism 3 is in an unlocking state, the portable battery pack 2 acts on the locking block 32 fixed on the frame 1 in the inward movement process, the locking pin 23 is in abutting connection with the locking fixture block 325 on the second locking plate 324, when the portable battery pack continues to move, the locking pin 23 presses the locking fixture block 325 and enables the second locking plate 324 to rotate towards the locking direction, the locking fixture block 325 and the locking fixture block 325 of the first locking plate 323 act in the rotation process of the second locking plate 324 and are finally mutually meshed and fixed, and the locking is completed; when unlocking, the pulling wire 33 pulls the first locking plate 323, the locking fixture 325 on the first locking plate 323 moves in a direction away from the second locking plate 324, the locking fixture 325 on the first locking plate 323 is separated from the locking fixture 325 on the second locking plate 324, and the second locking plate 324 rotates in the unlocking direction under the action of the second torsion spring 328, so that unlocking is completed.

Preferably, the locking pins are arranged in the insertion groove 24, and the locking pins are distributed along the length direction of the frame 1; the locking seats 31 are distributed along the horizontal direction; the locking block 32 is arranged perpendicular to the locking pin.

The unlocking structure of the invention is as follows: an unlocking block 34 is hinged to the locking seat 31, a first movable end of the unlocking block 34 is connected with a first pull wire 331 and a second pull wire 332, the first pull wire 331 is connected with a manual unlocking button 35, the second pull wire 332 is connected with a first locking plate 323, and the manual unlocking button 35 drives the unlocking block 34 to rotate in an unlocking direction through the first pull wire 331 and simultaneously pulls the second pull wire 332 to unlock; the second movable end of the unlocking block 34 is connected with the electric unlocking mechanism 36 in an abutting mode, and the electric unlocking mechanism 36 drives the unlocking block 34 to rotate in the unlocking direction and simultaneously pulls the second pull wire 332 to unlock.

Referring to fig. 10, the electric unlocking mechanism 36 includes an electric unlocking housing 361, a motor and a piston rod 362 driven by the motor to extend and retract are disposed in the electric unlocking housing 361, preferably, the piston rod 362 is radially limited and slidably disposed at one end of the electric unlocking housing 361, a return elastic member is disposed between the piston rod 362 and the electric unlocking housing 361, and a transmission mechanism of the motor and the piston rod 362 converts a circular motion of a motor shaft into a linear motion of the piston rod 362.

In order to indicate the state of the locking block 32, a signal sensor 37 is arranged below the locking housing 321, a metal elastic sheet 371 and a contact 372 are arranged on the end surface of the signal sensor 37 opposite to the locking housing 321, the lower end surface of the second locking plate 324 is in contact connection with the metal elastic sheet 371 and makes the metal elastic sheet 371 contact with the contact 372 when the second locking plate 324 is in the locking state, and the lower end surface of the second locking plate 324 is separated from the metal elastic sheet 371 and makes the metal elastic sheet 371 separate from the contact 372 when the second locking plate 324 is in the unlocking state.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The battery mounting structure of the new energy automobile is characterized by comprising a frame (1), a portable battery assembly (2) and a locking mechanism (3), wherein a battery bin (11) for accommodating the portable battery assembly (2) is arranged on the side of the frame (1), a pair of guide rails (12) are arranged on the inner side wall of the battery bin (11), and sliding grooves (21) matched with the guide rails (12) to slide are arranged on two sides of the portable battery assembly (2); a foldable support (22) is arranged at the bottom of the portable battery component (2), and the foldable support (22) is folded when entering the battery compartment (11) and unfolded after being separated from the battery compartment (11); the locking mechanism (3) is fixed on the frame (1) and comprises a locking block (32) capable of switching locking and unlocking states, and a locking pin (23) matched and locked with the locking block (32) is arranged at the rear end of the portable battery component (2).

2. The battery mounting structure of the new energy automobile according to claim 1, wherein the number of the battery compartments (11) is two, and the two battery compartments are located on the left and right sides of the automobile frame (1), respectively, each battery compartment (11) accommodates one portable battery assembly (2), the locking mechanism (3) is fixed on the automobile frame (1) between the two battery compartments (11), and a mechanism for locking and unlocking the two portable battery assemblies (2) is provided.

3. The battery mounting structure of the new energy automobile according to claim 2, characterized in that a plurality of lower rollers (13) are arranged at the bottom of the battery compartment (11), and the lower rollers (13) are in rolling connection with the bottom of the portable battery assembly (2); the portable battery pack is characterized in that a plurality of upper rollers (14) are arranged on the guide rail (12), each upper roller (14) comprises a plurality of vertical rollers (141) with axes distributed along the vertical direction and a plurality of transverse rollers (142) with axes distributed along the length direction of the frame (1), and the upper rollers (14) are in rolling connection with sliding grooves (21) of the portable battery pack (2).

4. The battery mounting structure of the new energy automobile according to claim 2, wherein an insertion groove (24) is formed in a front end of the portable battery assembly (2), a power supply insertion seat (25) is formed in the insertion groove (24), a power plug (15) electrically connected with the power supply insertion seat (25) is fixed on the vehicle frame (1), clamping heads (151) are arranged on two sides of the power plug (15), and clamping grooves (251) matched with the clamping heads (151) are formed in two sides of the power supply insertion seat (25).

5. The battery mounting structure of the new energy automobile according to claim 1, the foldable bracket (22) comprises a mounting seat (221), a supporting plate (222) and a roller component (223), the supporting plate (222) is hinged at the front side of the bottom of the mounting seat (221), the roller assembly (223) is positioned at the rear side of the supporting plate (222) and is hinged at the battery shell, the supporting plate (222) and the roller assembly (223) can be turned backwards and folded at the bottom of the portable battery assembly (2), a driving component (224) for driving the supporting plate (222) to unfold is arranged between the rear side surface of the supporting plate (222) and the bottom of the mounting seat (221), a connecting rod mechanism (225) which drives the roller component (223) to link is arranged between the supporting plate (222) and the roller component (223), the rear end of the portable battery component (2) is provided with a telescopic pull rod (26).

6. The battery mounting structure of the new energy automobile according to claim 5, wherein a bottom plate (16) is arranged at the bottom of the battery compartment (11), a protruding block (161) extending to the inlet of the battery compartment (11) is arranged at the front side of the middle part of the bottom plate (16), a movable block (226) matched with the protruding block (161) is arranged at the middle part of the supporting plate (222), and the protruding block (161) presses the movable block (226) to fold the supporting plate (222) when the portable battery assembly (2) is placed into the battery compartment (11).

7. The battery installation structure of the new energy automobile according to claim 1, wherein the locking mechanism (3) comprises a locking seat (31), a pull wire (33) and a locking block (32) fixed on the frame (1), the locking block (32) comprises a locking shell (321), a locking groove (322) for accommodating the locking pin (23) is formed in the middle of the locking shell (321), a first locking plate (323) and a second locking plate (324) are respectively hinged to the locking shell (321) on two sides of the locking groove (322), the first locking plate (323) and the second locking plate (324) are provided with locking clamping blocks (325) matched with each other, the lower end of the first locking plate (323) is connected with the pull wire (33), the upper end of the second locking plate (324) is provided with a locking head (326) capable of closing the locking groove (322), and a driving the first locking plate (323) to oppositely pull wire is arranged between the first locking plate (323) and the locking shell (321) The direction of the second locking plate (324) is rotated, and a second torsion spring (328) which drives the second locking plate (324) to rotate towards the unlocking direction is arranged between the second locking plate (324) and the locking shell (321).

8. The battery mounting structure of the new energy automobile according to claim 7, wherein an unlocking block (34) is hinged to the locking seat (31), a first pull wire (331) and a second pull wire (332) are connected to a first movable end of the unlocking block (34), the first pull wire (331) is connected with a manual unlocking button (35), the second pull wire (332) is connected with a first locking plate (323), and the manual unlocking button (35) drives the unlocking block (34) to rotate in an unlocking direction through the first pull wire (331) and simultaneously pulls the second pull wire (332) to unlock; the second expansion end of unlocking block (34) is contradicted with electronic release mechanism (36) and is connected, electronic release mechanism (36) drive unlocking block (34) rotate to the unblock direction and pull second stay wire (332) unblock simultaneously.

9. The battery installation structure of the new energy automobile according to claim 8, wherein the electric unlocking mechanism (36) comprises an electric unlocking housing (361), and a motor-driven telescopic piston rod (362) are arranged in the electric unlocking housing (361).

10. The battery mounting structure of the new energy automobile of claim 7, wherein a signal sensor (37) is arranged below the locking housing (321), the end face of the signal sensor (37) opposite to the locking housing (321) is provided with a metal elastic sheet (371) and a contact (372), the lower end face of the second locking plate (324) is abutted against the metal elastic sheet (371) when the second locking plate (324) is in the locking state and is connected to the metal elastic sheet (371) so that the metal elastic sheet (371) is contacted with the contact (372), and the lower end face of the second locking plate (324) is disconnected from the metal elastic sheet (371) when the second locking plate (324) is in the unlocking state and is separated from the contact (372).