CN219237248U

CN219237248U - Battery compartment for electric vehicle

Info

Publication number: CN219237248U
Application number: CN202320111271.9U
Authority: CN
Inventors: 吴兆泉
Original assignee: Foshan Xuanneng Technology Co ltd
Current assignee: Foshan Xuanneng Technology Co ltd
Priority date: 2023-01-20
Filing date: 2023-01-20
Publication date: 2023-06-23
Anticipated expiration: 2033-01-20

Abstract

The utility model provides a battery compartment for electric motor car, relates to an electric motor car technical field, including the bottom fix at electric motor car body girder afterbody and the last port is open box, set up the cushion fixed bolster on the port lateral wall on the box, the holding surface of fixed bolster is not less than the terminal surface of the open last port of box. Compared with the prior art, the utility model has the advantage of being capable of safely and conveniently installing large-volume large-capacity batteries.

Description

Battery compartment for electric vehicle

Technical Field

The utility model relates to the technical field of electric vehicles, in particular to a battery compartment for an electric vehicle.

Background

Because the electric bicycle is in order to balance cost and performance requirements, the structural strength of the frame of the electric bicycle and the installed battery only meet riding instead of walking requirements of users, and along with rapid growth of express delivery service, the electric bicycle is favored by express delivery little by virtue of the characteristics of flexible walking and strong adaptability to various road environments, but is determined by the performance of the electric bicycle when the electric bicycle is shipped, when the electric bicycle is required to be loaded and transported with heavy goods, the battery capacity is small, the volume is small, the requirements of loading and transporting the heavy goods and long-distance transmission cannot be met, the battery is exposed outside, the battery is easily damaged due to the action of foreign objects when the electric bicycle is loaded and transported with heavy goods and long-distance transmission, and the battery with large capacity and heavy weight is not easily and safely added on the original frame due to the structure.

Disclosure of Invention

The utility model aims to provide a battery compartment for an electric vehicle, which can overcome one or more of the defects and can safely and conveniently install a large-volume large-capacity battery.

The battery compartment for the electric vehicle is realized in such a way,

the electric vehicle comprises a box body with the bottom fixed at the tail part of a main beam of an electric vehicle body and an upper port of which is open, and a cushion fixing bracket arranged on the side wall of the upper port of the box body, wherein the shape and the size of an inner cavity of the box body are matched with those of a battery, and the supporting surface of the fixing bracket is not lower than the end surface of the upper port of the open of the box body.

Preferably, a tailstock reinforcing structure fixed at the tail part of the main girder of the vehicle body is arranged, a bearing platform is arranged on the tailstock reinforcing structure, and the box body is fixed on the bearing platform.

When a battery with large capacity and heavy weight is required to be installed, if the installation position is arranged below the cushion at the tail part of the main beam of the electric vehicle body, directly fixing the box body at the installation position, installing the battery on the box body, and then fixing the cushion on the cushion fixing bracket, so that the replacement of the battery with large capacity of the electric vehicle is completed, and meanwhile, the battery is protected through the box body and the cushion is supported through the structural strength of the box body; if the mounting position is not arranged below the cushion at the tail part of the main beam of the electric vehicle body, the tail frame reinforcing structure is fixed at the tail part of the main beam of the vehicle body, and a supporting platform is provided for the box body when the strength of the tail part of the main beam of the vehicle body is reinforced, so that the box body with large volume is supported, and the additionally installed batteries with large capacity, large volume and heavy weight are loaded and protected.

Preferably, the tail frame reinforcing structure comprises a pair of vertically arranged reinforcing plates, wherein front end parts of the reinforcing plates are respectively fixed on two sides of the vehicle body reinforcing structure, the reinforcing plates are fixedly connected, the reinforcing plates are clamped and fixed on a plurality of connecting rod members at the tail part of the vehicle body main girder, a bearing table is arranged on the reinforcing plates, and the bearing tables on the two reinforcing plates form a bearing platform. Thus, the tail frame reinforcing structure is tightly clamped at the tail part of the main beam of the car body through the cooperation of the reinforcing plate and the connecting rod member, and the supporting platform of the box body is provided while the rigidity of the tail part of the main beam of the car body is enhanced.

Preferably, a pair of rear trunk support rods are provided, one end of each rear trunk support rod is connected to the tail frame reinforcing structure, and the other end of each rear trunk support rod is connected to the tail trunk support of the frame.

Or, the tail frame reinforcing structure comprises a groove-shaped lower cover plate with lower wings at two sides and a groove-shaped upper cover plate with upper wings at two sides, wherein a supporting platform is arranged above the groove-shaped upper cover plate, the box body is fixed on the supporting platform on the groove-shaped upper cover plate, and the groove-shaped upper cover plate and the groove-shaped lower cover plate are oppositely covered at the tail part of the columnar body girder up and down and are fixedly connected together through screw fit nuts penetrating through the upper wings and the lower wings.

Or, the tail frame reinforcing structure comprises a U-shaped cover plate buckled below the fork-shaped tail part of the main beam of the vehicle body, an upper cover plate arranged above the fork-shaped tail part of the main beam of the vehicle body and provided with a supporting platform, screw bolts penetrating through the U-shaped cover plate and the upper cover plate are matched with nuts to fix the U-shaped cover plate and the upper cover plate on the fork-shaped tail part of the main beam of the vehicle body, and the box body is fixed on the supporting platform.

An existing electric two-wheeled bicycle comprises a frame of the electric two-wheeled bicycle, a frame body and a frame body, wherein the frame body comprises a tubular head main beam with a head pipe and a tubular body main beam fixedly connected with the head main beam;

some are provided with fork-shaped tails with central shaft members;

some are provided with a trunk support beam which is connected with the tail part of the main beam of the vehicle body and is inclined upwards;

the front wheel assembly is rotationally connected to the head tube, the rear wheel assembly is connected to the middle shaft member of the main beam of the bicycle body, the upper end of the tail box supporting beam is provided with a tail box bracket, and the main beam of the bicycle head and the main beam of the bicycle body form a framework of the electric bicycle.

The tail frame reinforcing structure is fixedly connected to the main beam tail frame, the pair of rear tail box support supporting rods are connected between the tail frame reinforcing structure and the tail box support of the frame, the fixed box body is arranged on the supporting platform of the tail frame reinforcing structure, and the box body and the tail box support are connected together by utilizing the connecting piece on the box body so as to obtain the support of the tail box support and ensure the firmness of the box body fixation.

Compared with the prior art, the utility model has the advantages of safely and conveniently installing the large-capacity battery and protecting the large-capacity battery from being damaged by the outside.

Drawings

Fig. 1 is a schematic view of the structure of a battery compartment for an electric vehicle according to embodiment 1 of the present utility model;

fig. 2 is a schematic view of the frame of the electric vehicle of embodiment 1 provided with the battery compartment for the electric vehicle of embodiment 1 of the utility model;

FIG. 3 is an exploded view of FIG. 2;

fig. 4 is a schematic structural view of a battery compartment with a tailstock reinforcement structure for an electric vehicle according to embodiment 2 of the present utility model;

fig. 5 is a schematic view of the structure of an electric vehicle frame of embodiment 2 equipped with a battery compartment for an electric vehicle of embodiment 2 of the utility model;

FIG. 6 is an exploded view of FIG. 5;

fig. 7 is a schematic structural view of a battery compartment for an electric vehicle with a tailstock reinforcement structure according to embodiment 3 of the present utility model;

fig. 8 is a view showing the external appearance of an electric vehicle frame according to embodiment 3 of the utility model;

fig. 9 is a schematic view of the structure of an electric vehicle frame of embodiment 3 equipped with a battery compartment for an electric vehicle of embodiment 3 of the utility model;

fig. 10 is a schematic structural view of a tailstock reinforcement structure of an electric vehicle frame according to embodiment 4 of the present utility model;

fig. 11 is a schematic structural view of an electric vehicle frame of embodiment 4 in which a battery compartment for an electric vehicle of embodiment 1 of the present utility model is installed.

Figure number: 1. a main body; 2. a case; 201. an upper port; 202. an upper port sidewall; 203. a vertical groove; 204. a set screw; 3. a cushion fixing bracket; 4. a head tube; 5. a main beam of the headstock; 6. a tail box support beam; 7. a sprocket base; 8. a tail box bracket; 9. a tailstock reinforcing structure; 901. a reinforcing plate; 902. a connecting rod member; 9021. a sleeve; 9022. a screw and a nut; 903. a support table; 904. a lower wing; 905. a groove-shaped lower cover plate; 9051. an inner groove-shaped lower cover plate; 9052. an outer groove-shaped lower cover plate; 906. an upper wing; 907. a groove-shaped upper cover plate; 9071. an inner groove-shaped upper cover plate; 9072. an outer groove-shaped upper cover plate; 908. the screw is matched with the nut; 909. a U-shaped cover plate; 9091. fixing the connecting surface; 910. an upper cover plate; 911. the screw is matched with a nut; 912. a Z-shaped connecting rod; 9121. a crossbar portion; 10. a support platform; 11. a headstock reinforcement structure; 12. a vehicle body reinforcing structure; 13. a screw; 14. a rear boot support bar; 15. a center shaft member; 16. a fork tail; 17. an inverted U-shaped table; 18. a U-shaped bottom bracket cover plate; 19. a riser; 20. screw/nut; 21. a connecting rod; 22. and supporting the table top.

Detailed Description

The battery compartment for the electric vehicle of the present utility model will now be described in further detail with reference to the accompanying drawings and examples:

as shown in fig. 1, the battery compartment for the electric vehicle according to the first embodiment of the present utility model is implemented by a box 2 with a bottom fixed at the tail of a main beam 1 of the electric vehicle frame and an upper port 201 being open, and a cushion fixing bracket 3 disposed on two upper port side walls 202 of the box 2, wherein the shape and size of an inner cavity of the box 2 are matched with those of a battery, and a supporting surface of the fixing bracket 3 is not lower than an end surface of the open upper port 201 of the box 2.

Preferably, a vertical groove 203 is formed on the side wall 202 of the upper port of the case 2, and the cushion fixing bracket 3 is fixed on the vertical groove 203 by a fixing screw 204. Thus, the height of the cushion fixing bracket 3 is adjusted by adjusting the position of the cushion fixing bracket 3 on the cushion fixing bracket 3 and fixing the cushion fixing bracket by the fixing screw 204, and then the height of the cushion mounted on the cushion fixing bracket 3 is adjusted.

As shown in fig. 2, 3 and 4, the box body 2 for an electric vehicle according to the first embodiment of the present utility model may be mounted on an electric vehicle frame including a tubular head girder 5 having a head pipe 4, a tubular body girder 1 fixedly connected to the head girder 5, a diagonally upward tail box support beam 6 connected to the rear portion of the body girder 1, a front wheel assembly rotatably connected to the head pipe 4, and a rear wheel assembly connected to the body girder 1, the rear portion of the body girder 1 being provided with a sprocket base 7 for setting a sprocket member or a footboard, and a tail box bracket 8 on the tail box support beam 6 being used for either mounting a tail box or mounting a tailstock.

Preferably, a tail frame reinforcing structure 9 fixed at the tail part of the main beam 1 of the vehicle body is arranged, a bearing platform 10 is arranged on the tail frame reinforcing structure 9, and the box body 2 is fixed on the bearing platform 10.

The vehicle body comprises a vehicle head reinforcing structure 11 for reinforcing the frame strength, a vehicle body reinforcing structure 12 fixedly connected with the vehicle head reinforcing structure 11, and a tail frame reinforcing structure 9 fixedly connected with the tail of the vehicle body reinforcing structure 12.

Preferably, the tail frame reinforcing structure 9 comprises a pair of reinforcing plates 901 with front ends fixed on two sides of the vehicle body reinforcing structure 12 respectively, and a plurality of connecting rod members 902 fixedly connecting the reinforcing plates 901, so that the reinforcing plates 901 are clamped and fixed on the tail of the vehicle body main beam 1, a bearing table 903 is arranged on the reinforcing plates 901, and the bearing tables 903 on the two reinforcing plates 901 form the bearing platform 10. The case 2 is secured to the support platform 10 by screws 13 passing through the bottom of the case 2 and screwed onto the support platform 10.

The tie bar member 902 includes a sleeve 9021 disposed between the reinforcement plates 901, and a screw and nut 9022 passing through both reinforcement plates 901 and the sleeve 9021 to fix the sleeve 9021 between the reinforcement plates 901.

Wherein the two sleeves 9021 are tightly abutted in the recesses on the front and rear sides of the sprocket base 7 so as to be tightly connected with the sprocket base 7 to enhance the rigidity of the connection of the tail stock reinforcing structure 9 with the main body girder 1, thereby enhancing the rigidity of the main body girder 1 after connection. At least one connecting rod member 902 is provided below the rear portion of the main body beam 1 so as to cooperate with the connecting rod member 902 on the sprocket base 7 to form an up-and-down clamping and fixing structure for the reinforcing plate 901 to the rear portion of the main body beam 1.

Preferably, a pair of back trunk support rods 14 are provided, one end of each back trunk support rod 14 is connected to the reinforcing plate 901 of the tail frame reinforcing structure 9, the other end of each back trunk support rod 14 is connected to the tail trunk support 8 of the electric vehicle frame, and the cushion fixing support 3 on the box body 2 is connected to the tail trunk support 8.

As shown in fig. 4, 5 and 6, in the second embodiment of the present utility model, the battery compartment with the tail frame reinforcement structure 9 for an electric vehicle is based on the first embodiment, the tail frame reinforcement structure 9 includes a groove-shaped lower cover plate 905 with lower wings 904 at both sides, and a groove-shaped upper cover plate 907 with upper wings 906 at both sides, the upper surface of the groove-shaped upper cover plate 907 is provided with a supporting platform 10, the box body 2 is fixed (by welding or screws) on the supporting platform 10 on the groove-shaped upper cover plate 907, and the groove-shaped upper cover plate 907 and the groove-shaped lower cover plate 905 are covered on the tail of the columnar main beam 1 relatively up and down and are fixedly connected together by screw nuts 908 passing through the upper wings 906 and the lower wings 904.

Preferably, the lower cover plate 905 comprises a lower cover plate 9051 with an inner groove and an upper cover plate 9052 with a lower wing 904, the inner side surface of the lower cover plate 9051 with an inner groove is matched with the shape of the tail of the columnar body girder 1, the outer side surface of the lower cover plate 9051 with an inner groove is polygonal, the inner side surface of the lower cover plate 9052 with an outer groove is polygonal matched with the outer side surface of the lower cover plate 9051 with an inner groove, the upper cover plate 907 with an inner groove comprises an upper cover plate 9071 with an upper wing 906 and an upper cover plate 9072 with an outer groove, the inner side surface of the upper cover plate 9071 with an inner groove is polygonal, and the inner side surface of the upper cover plate 9072 with an inner groove is polygonal matched with the outer side surface of the upper cover plate 9071 with an outer groove.

As shown in fig. 8 and 9, the battery compartment with the tail frame reinforcement structure 9 for an electric bicycle according to the third embodiment of the present utility model is used for a first electric two-wheeled bicycle, and the frame of the electric two-wheeled bicycle includes a tubular head main beam 5 with a head pipe 4, and a tubular body main beam 1 fixedly connected with the head main beam 5, wherein the tail of the body main beam 1 is a fork-shaped tail 16 with a central shaft member 15, and an inverted U-shaped table 17 for supporting a small battery is fixedly connected to the fork-shaped tail 16.

The battery compartment with the tail frame reinforcing structure 9 for the electric vehicle according to the third embodiment of the present utility model is based on the first embodiment, the tail frame reinforcing structure 9 includes a U-shaped cover plate 909 fastened under the fork-shaped tail 16 of the main body girder 1, an upper cover plate 910 with a supporting platform 10 disposed above the fork-shaped tail 16 of the main body girder 1, and screw bolts passing through the U-shaped cover plate 909 and the upper cover plate 910 are matched with nuts 911 to fix the U-shaped cover plate 909 and the upper cover plate 910 on the fork-shaped tail 16 of the main body girder 1, and the box 2 is fixed on the supporting platform 10.

Preferably, the upper cover plate 910 is U-shaped, and Z-shaped links 912 are fixedly connected to two sides of the U-shaped upper cover plate 910, and the rail portions 9121 of the Z-shaped links 912 form the support platform 10. Because the inverted U-shaped table 17 is present, and the size of the inverted U-shaped table 17 is far smaller than that of the box body 2, the inverted U-shaped table 17 is insufficient to stably support the box body 2 with a size far larger than that of the inverted U-shaped table 17, the upper cover plate 910 is adopted to be U-shaped, and the Z-shaped connecting rod 912 is arranged, so that the upper cover plate 910 is matched with the U-shaped cover plate 909 to reinforce the fork-shaped tail 16, and meanwhile, the capability of supporting the box body 2 is improved by utilizing the arranged Z-shaped connecting rod 912, so that the box body 2 is supported more firmly.

Preferably, a U-shaped middle shaft cover plate 18 and a vertical plate 19 are arranged on the middle shaft member 15, the U-shaped middle shaft cover plate 18 and the vertical plate 19 are wrapped and fixed in the middle of the middle shaft member 15 through screws/nuts 20, a connecting rod 21 is fixed at the bottom of the box body 2, the connecting rod 21 is fixed on the vertical plate 19, and the cross rod portions 9121 of the two sides, which are matched with the Z-shaped connecting rod 912, form a three-point supporting bearing platform 10 in stable triangular distribution.

As shown in fig. 10, the side of the U-shaped cover 909 facing the bottom bracket member 15 is provided with a fixing connection surface 9091, and the U-shaped bottom bracket cover 18 is fixed on the fixing connection surface 9091, so that the U-shaped bottom bracket cover 19 not only can reinforce the bottom bracket member 15 by using the U-shaped cover 909, but also can reinforce the fork tail 16 by the U-shaped cover 909, and the connecting rod 21 fixed at the bottom of the box 2 can fully obtain the strong support of the U-shaped cover 909.

As shown in fig. 11, a supporting table 22 for supporting a box 2 is provided on a main body beam 1 of an electric vehicle frame of embodiment 4 of a battery compartment for an electric vehicle of embodiment 1 of the present utility model, and the box 2 is fixed to the supporting table 22.

Preferably, a tail frame reinforcing structure 9 is arranged at the tail part of the main body beam 1 of the electric vehicle frame so as to strengthen the structural strength of the tail part of the main body beam 1 and adapt to the requirement of an additionally arranged battery compartment.

Claims

1. The battery compartment for the electric vehicle is characterized by comprising a box body with the bottom fixed at the tail part of a main beam of the electric vehicle body and the upper port of the box body being open, and a cushion fixing support arranged on the side wall of the upper port of the box body, wherein the supporting surface of the fixing support is not lower than the end surface of the upper port of the opening of the box body.

2. The battery compartment for an electric vehicle according to claim 1, wherein a tail frame reinforcing structure fixed to the tail of the main beam of the vehicle body is provided, a support platform is provided on the tail frame reinforcing structure, and the case is fixed to the support platform.

3. The battery compartment for an electric vehicle according to claim 2, wherein the tail frame reinforcement structure comprises a pair of vertically disposed reinforcement plates having front ends respectively fixed to both sides of the vehicle body reinforcement structure, and a plurality of connecting rod members fixedly connecting the reinforcement plates to each other so that the reinforcement plates are clamped and fixed to the rear portion of the main beam of the vehicle body, a support table is disposed on the reinforcement plates, and the support tables on the two reinforcement plates form the support platform.

4. A battery compartment for an electric vehicle according to claim 3, wherein a pair of rear trunk support struts are provided, one end of each rear trunk support strut being connected to the trunk reinforcement structure and the other end of each rear trunk support strut being connected to the trunk support of the vehicle frame.

5. The battery compartment for an electric vehicle according to claim 2, wherein the tail frame reinforcement structure comprises a groove-shaped lower cover plate with lower wings at two sides and a groove-shaped upper cover plate with upper wings at two sides, a supporting platform is arranged above the groove-shaped upper cover plate, and the groove-shaped upper cover plate and the groove-shaped lower cover plate are covered at the tail part of the columnar main girder of the vehicle body in an up-down opposite manner and are fixedly connected together through screw fit nuts penetrating through the upper wings and the lower wings.

6. The battery compartment for an electric vehicle of claim 2, wherein the tailstock reinforcement structure comprises a U-shaped cover plate fastened under the fork-shaped tail of the body main beam, an upper cover plate with a support platform disposed above the fork-shaped tail of the body main beam, and a screw passing through the U-shaped cover plate and the upper cover plate to fix the U-shaped cover plate and the upper cover plate to the fork-shaped tail of the body main beam in cooperation with nuts.

7. The battery compartment for an electric vehicle of claim 6, wherein the upper cover plate is U-shaped, wherein Z-shaped links are fixedly connected to both sides of the U-shaped upper cover plate, and wherein a cross bar portion of the Z-shaped links forms the support platform.

8. The battery compartment for the electric vehicle according to claim 7, wherein a U-shaped middle shaft cover plate and a vertical plate matched with a middle shaft component of a fork-shaped tail part of a main beam of the vehicle body are arranged, the U-shaped middle shaft cover plate and the vertical plate are wrapped and fixed in the middle of the middle shaft component through screws/nuts, a connecting rod is fixed at the bottom of the battery compartment and fixed on the vertical plate, and cross rod parts matched with the Z-shaped connecting rod on two sides form a three-point supporting bearing platform which is distributed in a stable triangle shape.

9. The battery compartment for an electric vehicle according to claim 2, wherein a vehicle head reinforcing structure for reinforcing the strength of the vehicle frame, and a vehicle body reinforcing structure fixedly connected with the vehicle head reinforcing structure are provided, and the tail frame reinforcing structure is fixedly connected to the tail of the vehicle body reinforcing structure.

10. The battery compartment for an electric vehicle according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, wherein a vertical groove is formed in the side wall of the upper port of the case, and the seat cushion fixing bracket is fixed on the vertical groove through a fixing screw.