CN217435952U

CN217435952U - Electric vehicle frame

Info

Publication number: CN217435952U
Application number: CN202221307097.7U
Authority: CN
Inventors: 张中华; 代禹平; 毛崇剑; 陆建华; 陈燃
Original assignee: Lima Vehicle Industry Group Co ltd
Current assignee: Lima Vehicle Industry Group Co ltd
Priority date: 2022-05-29
Filing date: 2022-05-29
Publication date: 2022-09-16
Anticipated expiration: 2032-05-29

Abstract

The utility model discloses an electric vehicle frame belongs to electric motor car technical field, has solved the poor problem of compact structure nature when carrying out the assembly of two battery groups at current carriage. The structure comprises two supporting rods which are arranged in parallel, the front ends of the two supporting rods are welded and fixed on a vertical pipe, the front end sides of the supporting rods are horizontally arranged and used for supporting a pedal part of the electric vehicle, the rear ends of the supporting rods are bent and upwarped, a connecting plate is welded and fixed on the bent parts of the two supporting rods, the connecting plate extends out towards the outer side of the bent part of the supporting rods, and a connecting shaft is bridged on the two connecting plates. The bottom rod is arranged on the lower side of the support rod in parallel at intervals through a plurality of connecting blocks, the front end of the bottom rod is fixedly welded with the vertical pipe, the rear end of the bottom rod is fixedly welded with the connecting plate, a front mounting position is formed on the inner sides of the bottom rod and the support rod, and the front mounting position is used for mounting a power supply bottle; a rear mounting position is formed between the rear end sides of the two support rods, and a seat barrel with a storage battery assembled inside is mounted in the rear mounting position.

Description

Electric vehicle frame

Technical Field

The utility model relates to an electric motor car especially relates to a frame of electric motor car.

Background

Due to the convenience of the electric vehicle, the electric vehicle is widely applied in real life. However, the national standards of electric vehicles are becoming more and more strict in terms of safety, such as the weight, speed and output voltage of battery pack of the electric vehicle, which are all required. However, under the requirement of new national standards, the range of some electric vehicles is limited, so that the application range of the electric vehicle is limited, and a lot of inconvenience is brought to the use of the electric vehicle.

The utility model discloses a double-electric-bottle electric vehicle in Chinese patent literature (publication number: CN 201472553U). The controller is arranged on a handlebar, one battery group with the same rated voltage as the motor is arranged behind a frame seat beam, the other battery group with the same rated voltage as the motor is arranged behind the battery group, and the battery groups are respectively connected with the controller by leads. The controller is divided into four grades, wherein the first grade supplies power for the battery groups in parallel, the second grade supplies power for the battery groups during the time of supplying power, the third grade supplies power for the battery groups, and the fourth grade supplies power for the battery groups. Because the utility model discloses a two sets of storage battery power supplies the same with the motor rated voltage, has reduced the long-time heavy current power supply of electric motor car and the overheated phenomenon that produces, has improved the storage battery life-span, has increased the continuous mileage of electric motor car.

In this kind of two battery group electric motor cars, the structure of its frame is comparatively fairly common, and does not change the frame to the setting of two sets of storage batteries, and makes the compact structure nature of this kind of electric motor car poor, and is poor to the fixed stability of storage battery group to can influence the life of storage battery.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who needs the solution: the utility model provides an electric motor car frame, this frame can provide two storage battery installation positions, makes things convenient for the setting of two storage battery groups on the electric motor car, and the compact structure nature of electric motor car is good, and is firm to the fixed of two storage battery groups.

For solving the technical problem, the technical scheme of the utility model: an electric vehicle frame comprises two support rods which are arranged in parallel, the front ends of the two support rods are welded and fixed on a vertical pipe, the front end sides of the support rods are horizontally arranged and used for supporting a pedal part of an electric vehicle, the rear ends of the support rods are bent and upwarped, a connecting plate is welded and fixed on the bending parts of the two support rods, the connecting plate extends out towards the outer side of the bending part of the support rods, connecting shafts are bridged on the two connecting plates and are used for connecting rear forks of the electric vehicle, the upwarping part of the supporting rod is connected with a connecting piece which is used for connecting with the upper end of the shock absorber, the device is characterized by further comprising a bottom rod, wherein the bottom rod is arranged on the lower side of the support rod in parallel at intervals through a plurality of connecting blocks, the front end of the bottom rod is fixedly welded with the vertical pipe, the rear end of the bottom rod is fixedly welded with the connecting plate, front mounting positions are formed on the inner sides of the bottom rod and the support rod and are used for mounting a power bottle; a rear mounting position is formed between the rear end sides of the two support rods, and a seat barrel with a storage battery assembled inside is mounted in the rear mounting position.

The upper surface of the pedal part is a plane for placing the feet of a driver, and the pedal part is formed by placing pedals on two support rods. The rear end of the supporting rod is bent to be upwarped, so that a relatively deep installation space for installing the sitting barrel is formed. A group of storage batteries is arranged in the front mounting position, a group of storage batteries is also arranged in the seat barrel in the rear mounting position, so that the related electric vehicle is provided with two groups of storage batteries, and the two groups of storage batteries are arranged at different mounting positions. The upper end of the shock absorber is connected with the connecting piece, and the lower end of the shock absorber is connected with a rear bottom fork of the electric vehicle, so that shock absorption in the driving process of the electric vehicle is realized.

Furthermore, the bottom rod is Jiong-shaped, and the front end of the bottom rod is welded and fixed on the lower end part of the vertical pipe. The bottom rod is formed by a hollow rod body through bending deformation, is firm in structure and can provide a good limiting effect for a storage battery in a front mounting position.

Furthermore, a plurality of U-shaped frames arranged in parallel are downwards arranged on the front end side of the supporting rod, and two ends of the U-shaped frames are welded and fixed on two opposite sides of the front end side of the supporting rod; the support rod is bridged with a plurality of pressure rods at the position of the front mounting position, and the pressure rods are used for pressing and connecting the storage battery at the front mounting position. The U-shaped frame and the pressing rod form the front mounting position, the structure is simple, and the battery cell group is convenient to mount and fix.

Further, the rear end side of the supporting rod comprises an inclined portion and a vertical portion, the inclined portion is arranged in an inclined mode, the vertical portion is arranged in the vertical direction, and the connecting plate is fixed on the inclined portion in a vertical welding mode. This kind of deformation of branch can provide the installation position of relative deepening for sitting the installation of bucket on the one hand, and on the other hand also can effectively press from both sides the connecing to sitting the bucket for sit the position stability of bucket between two spinal branch poles good.

Furthermore, a supporting frame is bridged at the top ends of the vertical parts of the two support rods, the supporting frame is shaped like a Chinese character 'ji', and the supporting frame is used for supporting and fixing the outer edge of the sitting barrel. The depth of the installation position can be further improved through the arrangement of the supporting frame, and when the sitting barrel is stressed, the supporting frame can improve the driving comfort through moderate deformation. The existence of support frame can promote the height, also makes to sit the barrel inside and has relatively great installation space, and the installation of a set of storage battery of being convenient for.

Furthermore, a bottom supporting plate is arranged in the interval between the two connecting plates and is used for supporting the bottom of the sitting barrel. Be provided with the bottom plate board, and can support from the downside to sitting the bucket, combine aforementioned support frame, and can provide stable support for sitting the bucket for sit the bucket and can enough adapt to the weight of storage battery, also can bear the weight of the driver and the passenger simultaneously.

Furthermore, a bottom bracket is arranged on the bottom supporting plate, the bottom bracket is shaped like a Chinese character 'ji', and the bottom of the sitting barrel is used for being placed on the bottom bracket. Through the setting of bottom bracket, and conveniently realize the fixed of sitting the barrel head portion for it is convenient to the installation and the dismantlement of sitting the bucket.

Further, a mounting seat is welded and fixed on the outer side face of the upper end of the vertical portion and used for fixing the two-way switch. Can open a thru hole corresponding to the position of mount pad on the lateral wall of sitting the bucket, after installing double-circuit switch on the mount pad, can stir with the shifting block of finger on the double-circuit switch through the thru hole to can switch two sets of storage batteries and supply power to the electric motor car motor.

Compared with the prior art, the utility model discloses the beneficial effect who has: can form two installation positions on this kind of frame to can set up two sets of storage batteries on the electric motor car, under the not enough condition of a set of storage battery electric quantity, can switch another a set of storage battery power supply, thereby can effectively realize the extension of electric motor car continuation of the journey mileage, on the basis that accords with the national standard, can satisfy the requirement of user to electric motor car continuation of the journey mileage well. The lower rods are arranged on the lower sides of the supporting rods in parallel, so that a relatively firm front mounting position is formed at the pedal part of the electric vehicle, and the position stability of the battery pack in the front mounting position is good. Through the bending deformation of branch rear end, and make the position department of back installation position be formed with a relatively dark installation space, sit the inside volume of bucket great relatively, and can satisfy another group of storage battery to installation space's requirement.

Drawings

Fig. 1 is a partial structural view of an electric vehicle with a body frame.

Fig. 2 is an exploded view of a part of the structure of an electric vehicle with the present frame.

Fig. 3 is a perspective view of the present frame.

Fig. 4 is a side view of the present frame.

In the figure, 1, a tap tube; 2. a riser; 3. a bottom bar; 4. a pressure lever; 5. a strut; 51. an inclined portion; 52. a vertical portion; 6. a battery cell; 7. a vertical decorative plate; 8. a power supply connector; 9. a box body; 10. a coupling plate; 11. a partition plate; 12. a two-way switch; 13. a mounting seat; 14. a coupling shaft; 15. a bottom pallet; 16. a bottom bracket; 17. a support frame; 18. a coupling block; 19. u-shaped frame; 20. a connecting piece.

Detailed Description

The frame of the electric vehicle is mainly formed by welding tubular curved rod bodies in combination with the attached drawings of the specification, and the frame determines the overall strength of the electric vehicle. The frame structure comprises two support rods 5 which are arranged together in parallel, wherein the front ends of the two support rods 5 are bent oppositely and then welded and fixed on a vertical pipe 2, and the rest parts of the two support rods 5 are spaced in the horizontal direction. An obliquely arranged faucet pipe 1 is welded and fixed at the upper end of the vertical pipe 2, a faucet shaft of the electric vehicle is rotatably inserted into the faucet pipe 1, and a front wheel of the electric vehicle is rotatably arranged at the lower end of the faucet shaft. The front end side of the strut 5 is horizontally arranged, a pedal is laid on the front end side of the strut 5 to form a pedal part, and the strut 5 provides support for the pedal.

The rear end of the supporting rod 5 is bent to be tilted upwards, so that the rear end of the supporting rod has a certain height and is suitable for the arrangement of the seat cushion. A connecting plate 10 is welded and fixed on the bending parts of the two support rods 5, and the connecting plate 10 extends towards the outer side of the bending part of the support rods 5. The two connecting plates 10 are bridged with a connecting shaft 14, and the connecting shaft 14 is inserted into the front end of the rear bottom fork of the electric vehicle. The upwarping part of the supporting rod 5 is connected with a connecting piece 20, the connecting piece 20 is used for being connected with the upper end of a shock absorber, and the lower end of the shock absorber is connected to a rear fork of the electric vehicle.

The rear end side of the strut 5 includes an inclined portion 51 and a vertical portion 52, the inclined portion 51 is arranged obliquely with respect to the horizontal direction, the vertical portion 52 is arranged vertically, and the connecting plate 10 is fixed on the inclined portion 51 by vertical welding. An installation space is formed between the rear ends of the two support rods 5, a sitting barrel is arranged in the installation space, the sitting barrel can extend downwards as much as possible, the volume inside the sitting barrel is relatively large, and a group of storage batteries 6 can be installed.

The lower sides of the supporting rods 5 are also provided with bottom rods 3 in parallel, the bottom rods 3 are Jiong-shaped, and the front ends of the bottom rods 3 are welded and fixed on the lower end parts of the vertical pipes 2. The bottom rod 3 is arranged below the support rod 5 through a plurality of connecting blocks 18 at intervals in parallel, and the rear end of the bottom rod 3 is welded and fixed with the connecting plate 10. A front mounting position is formed on the inner sides of the bottom rod 3 and the supporting rod 5, and a group of storage batteries 6 are mounted in the front mounting position. A rear mounting position is formed between the rear end sides of the two support bars 5, and the seat barrel is mounted in the rear mounting position. One end of the cushion is hinged on one side of the opening part of the sitting barrel, and the other end of the cushion is used for being buckled with the other side of the opening part of the sitting barrel. The group of four storage batteries 6 are arranged in the sitting barrel, the four storage batteries 6 are overlapped into two layers, each layer is two, and a partition plate 11 is arranged between the two layers of storage batteries 6. At the front mounting position, four storage batteries 6 are arranged in parallel in a row. The two support rods 5 are bridged with the pressure rods 4, the end parts of the pressure rods 4 are connected to the support rods 5 through bolts, and the storage batteries 6 are pressed and connected in the front mounting positions one by one through the pressure rods 4.

The U-shaped frame 19 is arranged in parallel at the front end of the support rod 5, the U-shaped frame 19 protrudes towards the lower side, two ends of the U-shaped frame 19 are welded and fixed on two opposite sides of the front end of the support rod 5, and the storage battery 6 is placed on the U-shaped frame 19.

The top ends of the vertical parts 52 of the two struts 5 are bridged with a supporting frame 17, and the supporting frame 17 is shaped like a Chinese character 'ji'. The upper opening of the sitting barrel is provided with an outer edge which extends horizontally towards the outer side, and the supporting frame 17 is attached and supported to the outer edge from the bottom side of the outer edge. A bottom supporting plate 15 is arranged in the interval between the two connecting plates 10, a bottom bracket 16 is arranged on the bottom supporting plate 15, the bottom bracket 16 is shaped like a Chinese character 'ji', and the bottom of the sitting barrel is directly placed on the bottom bracket 16.

And a mounting seat 13 is welded and fixed on the outer side surface of the upper end of the vertical part 52, and the mounting seat 13 is used for fixing the two-way switch 12. The wall body of the upper opening part of the sitting barrel is provided with a through opening, the through opening is positioned at the position of the mounting seat 13, and after the two-way switch 12 is mounted on the mounting seat 13, fingers can penetrate through the through opening to toggle the shifting block on the two-way switch 12. The two-way switch 12 is connected in series between the two groups of storage batteries 6 and the motor of the electric vehicle, and the two groups of storage batteries 6 are used for respectively and independently supplying power to the motor, namely, the switching is realized through the shifting block in the two-way switch 12. Two groups of storage batteries 6 are also charged respectively, namely one group of storage batteries 6 corresponds to one power supply connector 8, and the power supply connector 8 corresponding to the storage battery 6 in the front mounting position is arranged on a vertical decorative plate 7 of the electric vehicle, which is the same as the arrangement position on most of the existing electric vehicles; the power supply connector 8 corresponding to the storage battery 6 in the rear mounting position is arranged in the sitting barrel, namely, a box body 9 is arranged in the upper opening part of the sitting barrel, a connecting opening is arranged on the bottom wall of the box body 9, and the power supply connector 8 is arranged in the connecting opening. The two groups of storage batteries 6 can be respectively charged by adopting a charger with two power plugs, and when the storage batteries are charged, the cushion needs to be opened, so that the connection and the matching between one power plug and the corresponding power connector 8 are realized.

Claims

1. An electric vehicle frame comprises two support rods arranged in parallel, the front ends of the two support rods are welded and fixed on a vertical pipe, the front end sides of the support rods are horizontally arranged and used for supporting a pedal part of an electric vehicle, the rear ends of the support rods are bent and upwarped, a connecting plate is welded and fixed on the bent parts of the two support rods and extends out towards the outer side of the bent part of the support rods, connecting shafts are bridged on the two connecting plates and used for connecting rear forks of the electric vehicle, connecting pieces are connected on the upwarped parts of the support rods and used for being connected with the upper ends of shock absorbers, the frame is characterized by further comprising bottom rods, the bottom rods are arranged on the lower sides of the support rods in parallel at intervals through a plurality of connecting blocks, the front ends of the bottom rods are welded and fixed with the vertical pipe, the rear ends of the bottom rods are welded and fixed with the connecting plates, and front mounting positions are formed on the inner sides of the bottom rods and the support rods, installing a power supply bottle at the front installation position; a rear mounting position is formed between the rear end sides of the two support rods, and a seat barrel with a storage battery assembled inside is mounted in the rear mounting position.

2. The frame for electric vehicle as claimed in claim 1, wherein the bottom bar is Jiong-shaped, and the front end of the bottom bar is welded and fixed on the lower end of the vertical tube.

3. The electric vehicle frame according to claim 1, wherein a plurality of U-shaped frames arranged in parallel are arranged downwards at the front end side of the supporting rod, and two ends of the U-shaped frames are welded and fixed on two opposite sides of the front end side of the supporting rod; the support rod is bridged with a plurality of pressure rods at the position of the front mounting position, and the pressure rods are used for pressing and connecting the storage battery at the front mounting position.

4. The frame for electric vehicle according to claim 1, 2 or 3, wherein the rear end side of the strut includes an inclined portion and a vertical portion, the inclined portion is obliquely disposed, the vertical portion is disposed in a vertical direction, and the coupling plate is vertically welded and fixed to the inclined portion.

5. The electric vehicle frame as claimed in claim 4, wherein a support frame is bridged at the top ends of the vertical parts of the two support rods, the support frame is shaped like a Chinese character 'ji', and the support frame is used for supporting and fixing the outer edge of the sitting barrel.

6. The frame for an electric vehicle as claimed in claim 5, wherein a bottom bracket plate is provided in the space between the two coupling plates, the bottom bracket plate being used to support the bottom of the tub.

7. The electric vehicle frame as claimed in claim 6, wherein a bottom bracket is provided on the bottom support plate, the bottom bracket is shaped like a Chinese character 'ji', and the bottom of the seat barrel is used for resting on the bottom bracket.

8. The frame of the electric vehicle as claimed in claim 4, wherein a mounting seat is welded and fixed on the outer side surface of the upper end of the vertical part, and the mounting seat is used for fixing the two-way switch.