Electric vehicle functional unit connecting device

Abstract

The utility model discloses a functional unit connecting device of an electric vehicle, which is used for realizing the connection and fixation of corresponding functional units such as a controller and an electric control switch, and solves the problem that other structural sizes are influenced due to the fact that no mounting space is formed at the corresponding position on the existing electric vehicle. According to the technical scheme, the electric vehicle functional unit connecting device is arranged on the rear end side of an electric vehicle frame, an electric vehicle comprises a seat cushion supporting part, and the seat cushion supporting part comprises two side plates arranged on the two opposite sides of the electric vehicle in the width direction. The middle position in the height direction of the side plate protrudes outwards, so that an installation cavity is formed in the inner side of the side plate, the rear end side of the frame is bent towards the upper side, the bent part of the frame is located on the rear lower side of the installation cavity, a right connecting frame extending into the installation cavity is arranged at the bent part on one side of the frame, and a fixing structure is arranged on the right connecting frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric vehicle, in particular to a coupling device for connecting and fixing some functional units on an electric vehicle. BACKGROUND

[0002] The structure of the electric vehicle includes a frame, which is made of iron and provides a strength support basis for the electric vehicle. Some functional units of the electric vehicle, such as controllers and electric control switches, need to be coupled and fixed to the frame. In order to adapt to the riding of the driver, a seat cushion is also needed to be arranged at the rear end side of the electric vehicle to provide a seat for the driver, and the seat cushion takes the frame of the electric vehicle as a support basis. On the existing electric vehicle, in order to adapt to the support of the seat cushion, the frame is usually bent upward to extend and form a horizontal support part, and the seat cushion is supported on the support part, and the frame realizes the support of the seat cushion by using its own strength. Therefore, in order to meet the support requirements of the seat cushion, the model of the electric vehicle frame is relatively complex, which will cause inconvenience in processing the frame.

[0003] Chinese patent document (authorized announcement number: CN218786044U) discloses a rear seat cushion of an electric vehicle, which comprises a rear seat cushion, a storage box, a backrest, and a tail cover. One end of the storage box is provided with a rotating part, the rear seat cushion is connected with the rotating part and rotates around the end of the storage box through the rotating part. The rear seat cushion, the storage box, the tail cover, and the backrest are assembled into a combined body and are installed on the frame together. The tail cover is installed at the tail of the storage box to seal the side surface of the storage box. The backrest is installed at the top of the storage box away from the rotating part and is located above the tail cover. The utility model can rotate by only one pin shaft, is clamped by a clamping groove after falling down, and does not need to be locked by a special lock. Two fingers can open it by slightly exerting force, and a key is not needed. The rear seat cushion is opened to form a box for storing things, is locked by lowering the rear seat cushion, and can carry people on the top.

[0004] In this rear seat cushion of the electric vehicle, the seat cushion is directly installed on the frame. If a seat bucket is arranged at the lower side of the seat cushion, a certain installation space is usually formed at the lower side of the seat bucket to install and fix some functional units. In order to adapt to this structural requirement, the depth of the seat bucket is limited by space, the volume of the seat bucket is relatively small, and a relatively large object containing space cannot be provided. UTILITY MODEL CONTENTS

[0005] The utility model needs to solve the technical problem: provide a kind of electric vehicle functional unit coupling device, on the basis that the volume of seat bucket can be guaranteed, some functional units can also be conveniently coupled and fixed.

[0006] To solve the technical problem, the utility model discloses a technical scheme of an electric vehicle function unit connecting device, which is arranged at the rear end side of an electric vehicle frame, the electric vehicle comprises a seat cushion support part, the seat cushion support part comprises two side plates arranged at opposite sides in the width direction of the electric vehicle, characterized in that the side plates are made of metal material, the middle part of the side plates in the height direction protrudes outward, thereby forming a mounting cavity at the inner side of the side plates, the rear end side of the frame is curved upward, the curved part of the frame is located at the rear lower side of the mounting cavity, a right connecting frame extending into the mounting cavity is arranged at the curved part on one side of the frame, and a fixing structure is arranged on the right connecting frame.

[0007] The material of the side plates can be iron sheet, stainless steel or aluminum alloy material, and the aluminum alloy material is generally preferred, the material characteristics of the side plates with a certain thickness can be used to provide a certain support for the seat cushion, the rear side part of the frame does not protrude upward at the middle part of the seat cushion, thereby forming a relatively large mounting space at the lower side of the seat cushion for arranging a seat bucket with sufficient depth.

[0008] Further, the right connecting frame is a plate body, the transverse section of the right connecting frame is Z-shaped, the outer side part of the right connecting frame forms a mounting plate, the mounting plate is used for abutting and fixing the controller, and the fixing structure comprises a fixing hole arranged on the mounting plate. The right connecting frame can bias the mounting plate to the seat bucket position, thereby forming a large mounting space suitable for the installation of the controller.

[0009] Further, the right connecting frame is arranged in an inclined mode, and the two ends of the right connecting frame are respectively connected and fixed to the opposite sides of the curved part of the frame. This well adapts to the curved part of the frame and can well meet the installation requirements of the controller.

[0010] Further, the lower end of the mounting plate is integrally formed with a protruding part, the protruding part protrudes outward to the outer side of the right connecting frame, and the protruding part and the mounting plate are arranged in the same direction. The protruding part is formed by the natural extension of the mounting plate, and the structure of the mounting plate is changed relative to the main part of the right connecting frame, so that the mounting of controllers with different lengths can be well adapted, and the actual use requirements can be well met.

[0011] Further, a left connecting frame is connected to the curved part on the other side of the frame, and the left connecting frame extends into the corresponding mounting cavity. The left connecting frame is arranged on the other side of the frame, so that the space on the other side of the electric vehicle can be well utilized, and the installation of some function units is facilitated.

[0012] Further, the left connecting frame is an L-shaped plate body, and the connecting frame is used for mounting an electric control switch. The left connecting frame can facilitate the installation of the electric control switch, and the installation stability of the electric control switch is good.

[0013] Further, the fixed plate is welded and fixed on the frame at the position of the left connecting frame, and the fixed plate is used for connecting and fixing the tail frame of the electric vehicle, the fixed plate extends to the front side, and the left connecting frame is connected and fixed on the fixed plate. By arranging the fixed plate, the rear end structure of the frame can be well adapted, and the tail frame is conveniently connected and fixed. The left connecting frame is directly connected to the fixed plate, the fixed plate can be well utilized, the left connecting frame has a relatively large connecting size with the fixed plate, and the connection stability of the left connecting frame can be ensured.

[0014] Compared with the prior art, the utility model has the advantages that: the lateral plate is made of metal material, the lateral plate has a relatively large supporting force in the vertical direction, the connecting points between the lateral plate and the frame do not need to be arranged at the middle position of the lateral plate, thus the frame does not need to be deformed to adapt to the connecting points, so that the structure of the frame can be effectively simplified. In addition, the frame does not need to be deformed at the middle position of the seat cushion, the frame does not need to extend upward at the middle position of the seat cushion, the frame does not occupy too much space below the seat cushion, so that a seat bucket with a relatively large volume can be arranged below the seat cushion, and the volume of the seat bucket can be improved. The middle position of the lateral plate is designed to protrude outward, and the frame does not need to extend into the protruding position, so that an installation space for installing some functional units can be formed between the lateral plate and the seat bucket, the controller and the electric switch are conveniently installed, the space inside the electric vehicle can be well utilized, and the seat bucket has a large depth. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the use state diagram of the functional unit connecting device, and the lateral plate is shown in an explosion view in the drawing.

[0016] Figure 2 is Figure 1 a further explosion view.

[0017] Figure 3 is the explosion view of the other side. Figure 1 , 2 the explosion view of the other side.

[0018] Figure 4 is a perspective view of the frame and the seat cushion support part being connected together.

[0019] Figure 5 is Figure 4 the explosion view of the other side.

[0020] In the drawing, 1, lateral plate; 2, seat cushion; 3, seat bucket; 4, frame; 41, curved part; 5, controller; 6, closing plate; 7, right connecting frame; 71, mounting plate; 72, extending part; 8, electric switch; 9, tail frame; 10, fixed plate; 11, left connecting frame. DETAILED DESCRIPTION

[0021] The electric vehicle functional unit coupling device is arranged at the rear end side of the electric vehicle frame 4, and is used for mounting some functional units, such as the controller 5 and the electric control switch 8.

[0022] The electric vehicle involves a seat cushion support part with a certain height, and the seat cushion 2 is supported on the seat cushion support part. The structure of the seat cushion support part includes two side plates 1 arranged at opposite sides in the width direction of the electric vehicle, and one closing plate 6 bridged at the front and rear ends of the two side plates 1. After the closing plate 6 and the side plates 1 are connected together, a hollow cavity is formed, and a seat bucket 3 is arranged in the cavity. The upper opening part of the seat bucket 3 is integrally formed with an outward edge, which is abutted and supported on the upper end part of the side plates 1 and the closing plate 6. The side plates 1 are generally made of aluminum alloy material, and the middle part of the side plates 1 in the height direction protrudes outward, so that the side plates 1 are approximately C-shaped. Due to the deformation of the side plates 1, an installation cavity is formed between the inner side of the side plates 1 and the outer side of the seat bucket 3.

[0023] The rear end side of the frame 4 is curved upward, and the curved part 41 of the frame 4 is located at the lower rear side of the installation cavity. A right coupling frame 7 extending into the installation cavity is arranged at the curved part 41 of the frame 4, and a fixing structure is arranged on the right coupling frame 7. The right coupling frame 7 is a plate-shaped body, and the transverse section of the right coupling frame 7 is Z-shaped. An installation plate 71 is formed on the outer side of the right coupling frame 7, and the installation plate 71 is used for abutting and fixing the controller 5. The fixing structure includes a fixing hole arranged on the installation plate 71. The fixing hole is generally penetrative, and sometimes is arranged in a waist shape to adapt to the length of the functional unit to be installed.

[0024] As shown in the figure, the right coupling frame 7 is arranged in an inclined manner, and the two ends of the right coupling frame 7 are respectively connected and fixed on the opposite sides of the curved part 41 of the frame 4. Two coupling plates are welded and fixed on the opposite sides of the curved part 41 of the frame 4, and the coupling plates extend into the installation cavity. The two ends of the right coupling frame 7 are respectively fixed on the two coupling plates through coupling bolts.

[0025] The lower end of the installation plate 71 is integrally formed with an extension part 72, which protrudes outward to the outer side of the right coupling frame 7, and the extension part 72 is arranged in the same direction as the installation plate 71. In fact, the length of the installation plate 71 is greater than that of other parts of the right coupling frame 7, so that a larger installation size can be provided. In combination with the waist-shaped fixing hole, the installation and fixation of controllers 5 with different sizes can be adapted, so that the right coupling frame 7 has a wide range of applications.

[0026] In order to further improve the space utilization of the electric vehicle, a left connecting frame 11 is connected to the curved portion 41 on the other side of the frame 4, and the left connecting frame 11 extends into the corresponding mounting cavity. The left connecting frame 11 is an L-shaped plate body, and the left connecting frame 11 is horizontally arranged, and the electric control switch 8 can be mounted and fixed on the left connecting frame 11.

[0027] In order to adapt to the installation of the tail frame 9 of the electric vehicle, so as to provide a cargo carrying space at the tail end of the electric vehicle, a fixed plate 10 is welded and fixed on the frame 4 at the position of the left connecting frame 11. Correspondingly, a fixed plate 10 is also welded and fixed on the frame 4 at the position of the right connecting frame 7. The two fixed plates 10 are used to connect and fix the tail frame 9 of the electric vehicle, and the fixed plate 10 extends towards the front side, and the left connecting frame 11 is welded and fixed on the extending portion 72 of the fixed plate 10.

Claims

1. An electric vehicle functional unit coupling device provided at a rear end side of a frame of an electric vehicle, the electric vehicle including a seat cushion support portion including two side plates provided at opposite sides in a width direction of the electric vehicle, characterized by, The side plate is made of metal material, the middle position of the side plate in the height direction protrudes outward, thereby forming a mounting cavity on the inner side of the side plate, the rear end side of the frame is curved upward, the curved position of the frame is located at the lower rear side of the mounting cavity, a right connecting frame extending into the mounting cavity is arranged at the curved position on one side of the frame, and a fixing structure is arranged on the right connecting frame.

2. The electric vehicle functional unit coupling device according to claim 1, characterized by The right connecting frame is a plate-shaped body, the cross section of the right connecting frame is Z-shaped, the outer side of the right connecting frame forms a mounting plate, the mounting plate is used for abutting and fixing the controller, and the fixing structure comprises a fixing hole arranged on the mounting plate.

3. The electric vehicle functional unit coupling device according to claim 2, characterized by The right connecting frame is arranged in an inclined manner, and the two ends of the right connecting frame are respectively connected and fixed to the opposite sides of the curved position on the frame.

4. The electric vehicle functional unit coupling device according to claim 3, characterized by The lower end of the mounting plate is integrally formed with an extension part, the extension part protrudes outward to the outer side of the right connecting frame, and the extension part and the mounting plate are arranged in the same direction.

5. The electric vehicle functional unit coupling device according to any one of claims 1 to 4, characterized by A left connecting frame is connected to the curved position on the other side of the frame, and the left connecting frame extends into the corresponding mounting cavity.

6. The electric vehicle functional unit coupling device according to claim 5, wherein The left connecting frame is an L-shaped plate body, and the connecting frame is used for mounting an electric control switch.

7. The electric vehicle functional unit coupling device according to claim 6, characterized by A fixing plate is welded and fixed to the position of the left connecting frame on the frame, the fixing plate is used for connecting and fixing a tail frame of the electric vehicle, the fixing plate extends forward, and the left connecting frame is connected and fixed to the fixing plate.

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