Electric vehicle battery box and electric vehicle

Abstract

The utility model provides an electric vehicle battery box and an electric vehicle, and belongs to the technical field of electric bicycles. The electric vehicle battery box comprises a battery box main body part and a heat dissipation assembly. The battery box main body part comprises a box body and a box cover, the box cover is fixedly arranged at the top of the box body, battery placement boxes with the tops of open structures are arranged in the box body, cavity layers are reserved between the battery placement boxes and the inner wall of the box body and between the adjacent battery placement boxes, and air inlet holes are formed in the two sides of the box body. The sealing block at the bottom of the battery placement box blocks the opening in the top of the battery placement box, so that the storage battery in the battery box is in a sealed state, and good sealing and waterproof effects are achieved. And external air enters the cavity layer between the box and the battery placement box from the air inlet to circulate, takes away heat generated by the storage battery, finally enters the interior of the housing through the communication hole, and is discharged from the air outlet along with the cooling fan, so that the storage battery can be rapidly cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycles, in particular to an electric bicycle battery box and an electric bicycle. Background Art

[0002] Electric bicycles use batteries as auxiliary energy sources, and motors and other components are installed on the basis of ordinary bicycles for auxiliary driving of bicycles. Electric bicycles are currently widely used in life. In the design of some electric bicycles, battery box sealing technology is used to ensure the safety of electric bicycles in wading. For example, the public document with announcement number CN219215256U discloses an electric bicycle with a waterproof battery box, including a main body, wherein a storage space is provided in the middle of the upper end of the main body, and a battery module is arranged in the storage space, and a storage groove is provided on the upper end of the main body, and the storage groove is located on one side of the storage space, and a U-shaped support frame is connected to one end of the upper end face of the main body, and a rotating shaft is connected to the middle of the U-shaped support frame. Although the battery box outside the above-mentioned battery has a good sealing effect, the sealed box body causes the overall heat dissipation effect of the battery to be poor, and the battery cannot dissipate heat quickly, which not only affects the battery life, but also causes the battery to burn and be damaged in severe cases. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides an electric vehicle battery box and an electric vehicle, aiming to improve the problem that the sealed box body in the battery box of the related art leads to poor overall heat dissipation effect of the battery and the battery cannot dissipate heat quickly.

[0004] The utility model is achieved in this way:

[0005] The utility model provides an electric vehicle battery box, comprising a battery box main body and a heat dissipation component.

[0006] The main body of the battery box includes a box and a box cover, the box cover is fixedly arranged on the top of the box, a battery placement box with an open top is arranged inside the box, a cavity layer is reserved between the battery placement box and the inner wall of the box and between adjacent battery placement boxes, air inlet holes are arranged on both sides of the box, a cover shell with an open top is fixed to the bottom of the box cover, a sealing block is arranged at the bottom of the cover shell, and the sealing block is inserted into the open top of the battery placement box, connecting holes are arranged on both sides of the cover shell, and an exhaust port is arranged on the top of the box cover;

[0007] The heat dissipation assembly comprises a heat dissipation fan, and the heat dissipation fan is installed below the air outlet located inside the housing.

[0008] In an embodiment of the utility model, the heat dissipation assembly further includes a heat conducting plate, and a plurality of groups of the heat conducting plates are respectively arranged on the back side of the battery placement box at both ends.

[0009] In an embodiment of the utility model, the heat dissipation assembly further includes a mesh plate, and the mesh plate is installed above the air outlet.

[0010] In one embodiment of the present invention, a sealing gasket is provided between the top edge of the box and the bottom of the box cover.

[0011] In an embodiment of the present invention, the cross section of the sealing gasket is a T-shaped structure, and a mounting groove matching the sealing gasket is provided on the top edge of the box.

[0012] In an embodiment of the present invention, one side of the box cover and the outer edge of the box are connected by a hinge.

[0013] In an embodiment of the present invention, a connecting block is provided on the other side of the box cover, and the connecting block is connected to the box by fixing bolts.

[0014] The present application also provides an electric vehicle, comprising the electric vehicle battery box described above.

[0015] The beneficial effects of the utility model are as follows: the utility model obtains an electric vehicle battery box and an electric vehicle through the above design. When the box cover is fixedly closed on the top of the box, the sealing block at the bottom of the battery placement box blocks the opening at the top of the battery placement box, so that the battery in the battery box is in a sealed state, and has a good sealing and waterproof effect. When the cooling fan is running, the external air enters from the air inlet hole to the cavity layer between the box and the battery placement box, takes away the heat generated by the battery, and finally enters the inside of the cover through the connecting hole. As the cooling fan is discharged from the exhaust port, the battery can be quickly cooled down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the electric vehicle battery box provided by the embodiment of the utility model;

[0018] Figure 2 The utility model embodiment provides Figure 1 A partial enlarged structural diagram of part A;

[0019] Figure 3 A schematic diagram of the vertical cross-sectional structure of an electric vehicle battery box provided by an embodiment of the utility model;

[0020] Figure 4 The utility model embodiment provides Figure 3 The schematic diagram of the partial enlarged structure of part B in the middle;

[0021] Figure 5 A schematic diagram of the structure of a box, a battery placement box and a heat conducting plate provided in an embodiment of the utility model.

[0022] In the figure: 10 - main body of the battery box; 110 - box; 111 - air inlet; 120 - box cover; 130 - battery placement box; 131 - cavity layer; 140 - cover; 141 - communicating hole; 150 - sealing block; 160 - connecting block; 170 - fixing bolt; 180 - hinge; 190 - sealing gasket; 20 - heat dissipation assembly; 210 - heat dissipation fan; 220 - heat conduction plate; 230 - mesh plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-Figure 5 The utility model provides an electric vehicle battery box, including a battery box main body 10 and a heat dissipation component 20.

[0026] The battery box main body 10 has a good sealing effect on the installed batteries, and the heat dissipation component 20 can not only seal the batteries but also quickly dissipate the heat of the batteries, so that the batteries can operate stably for a long time.

[0027] See also Figure 1 , Figure 3 and Figure 5The main body 10 of the battery box includes a box 110 and a box cover 120. The box cover 120 is fixedly arranged on the top of the box 110, and a battery placement box 130 with an open top is arranged inside the box 110. A cavity layer 131 is reserved between the battery placement box 130 and the inner wall of the box 110 and between adjacent battery placement boxes 130. Air inlet holes 111 are arranged on both sides of the box 110, and a cover 140 with an open top is fixed to the bottom of the box cover 120 by welding. A sealing block 150 is arranged at the bottom of the cover 140, and the sealing block 150 is inserted into the open top of the battery placement box 130. The sealing block 150 can be a rubber block or a silicone block with good sealing performance. Corresponding wire threading holes are arranged on the sealing block 150, the cover 140, and the box cover 120. Connecting holes 141 are arranged on both sides of the cover 140, and an exhaust port is arranged on the top of the box cover 120. The heat dissipation assembly 20 includes a heat dissipation fan 210 , which is installed below the air outlet located inside the housing 140 .

[0028] Each group of batteries is placed separately in the battery placement box 130 inside the box 110. When the box cover 120 is fixedly covered on the box 110, the sealing block 150 at the bottom of the battery placement box 130 blocks the opening at the top of the battery placement box 130, so that the batteries in the battery box are in a sealed state, and have a good sealing and waterproof effect. When the heat dissipation fan 210 is running, the external air enters the box 110 from the air inlet 111, and the air flows along the cavity layer 131 between the box 110 and the battery placement box 130, taking away the heat generated by the battery, and finally entering the cover 140 through the connecting hole 141. As the heat dissipation fan 210 is discharged from the exhaust port, the battery can be quickly cooled down, protecting the battery from running at a good temperature for a long time.

[0029] For further information, see Figure 3 and Figure 5 The heat dissipation assembly 20 further includes a heat conducting plate 220, and a plurality of heat conducting plates 220 are respectively arranged on the opposite side of the battery placement box 130 at both ends. The heat conducting plate 220 and the battery placement box 130 are integrally formed, and the heat conducting plate 220 and the battery placement box 130 can be made of copper or aluminum materials with good thermal conductivity. The heat generated by the battery is quickly taken away by the air flowing in the cavity layer 131 through the heat conducting plate 220, so that the battery is quickly cooled down.

[0030] For details, please refer to Figure 3 The heat dissipation assembly 20 also includes a mesh plate 230 , which is installed above the exhaust port. The mesh plate 230 is configured to protect the heat dissipation fan 210 .

[0031] For specific settings, see Figure 3 and Figure 4A sealing gasket 190 is provided between the top edge of the box 110 and the bottom of the box cover 120. The cross section of the sealing gasket 190 is a T-shaped structure, and a mounting groove matching the sealing gasket 190 is provided on the top edge of the box 110. The provision of the sealing gasket 190 is to further enhance the waterproof effect of the box 110.

[0032] In the above specific implementation, please refer to Figure 1 and Figure 2 , one side of the box cover 120 is connected to the outer edge of the box 110 by a hinge 180. A connecting block 160 is provided on the other side of the box cover 120, and the connecting block 160 is connected to the box 110 by a fixing bolt 170. That is, the box cover 120 and the box 110 are fixed by the fixing bolt 170, and the box cover 120 can be rotated to open the internal components for inspection or replacement by removing the fixing bolt 170.

[0033] The present application also provides an electric vehicle, comprising the above-mentioned electric vehicle battery box.

[0034] It should be noted that the specific model and specifications of the cooling fan 210 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail. The power supply and principle of the cooling fan 210 are clear to those skilled in the art and will not be described in detail here.

[0035] The working principle of the electric vehicle battery box and the electric vehicle: when in use, each group of batteries is placed separately in the battery placement box 130 inside the box 110. When the box cover 120 is fixedly covered on the top of the box 110, the sealing block 150 at the bottom of the battery placement box 130 blocks the opening at the top of the battery placement box 130, so that the batteries in the battery box are in a sealed state, and have a good sealing and waterproof effect. When the cooling fan 210 is running, the external air enters the box 110 from the air inlet 111, and the air flows along the cavity layer 131 between the box 110 and the battery placement box 130, taking away the heat generated by the battery, and finally entering the cover 140 through the connecting hole 141. As the cooling fan 210 is discharged from the exhaust port, the battery can be quickly cooled down, protecting the battery from running at a good temperature for a long time.

[0036] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric vehicle battery box, characterized in that: include A battery box main body (10), the battery box main body (10) comprising a box (110) and a box cover (120), the box cover (120) being fixedly arranged on the top of the box (110), a battery placement box (130) having an open top structure being arranged inside the box (110), a cavity layer (131) being reserved between the battery placement box (130) and the inner wall of the box (110) and between adjacent battery placement boxes (130), air inlet holes (111) being arranged on both sides of the box (110), a cover shell (140) having an open top being fixedly arranged on the bottom of the box cover (120), a sealing block (150) being arranged on the bottom of the cover shell (140), and the sealing block (150) being inserted into the open top of the battery placement box (130), connecting holes (141) being arranged on both sides of the cover shell (140), and an exhaust port being arranged on the top of the box cover (120); A heat dissipation component (20), the heat dissipation component (20) comprising a heat dissipation fan (210), the heat dissipation fan (210) being installed below an air outlet located inside the housing (140).

2. An electric vehicle battery box according to claim 1, characterized in that: The heat dissipation assembly (20) further comprises a heat conducting plate (220), and a plurality of groups of the heat conducting plates (220) are respectively arranged on the opposite side of the battery placement box (130) at both ends.

3. The electric vehicle battery box according to claim 1, characterized in that: The heat dissipation assembly (20) further comprises a mesh plate (230), wherein the mesh plate (230) is installed above the air outlet.

4. The electric vehicle battery box according to claim 1, characterized in that: A sealing gasket (190) is provided between the top edge of the box (110) and the bottom of the box cover (120).

5. The electric vehicle battery box according to claim 4, characterized in that: The cross section of the sealing gasket (190) is a T-shaped structure, and a mounting groove matching the sealing gasket (190) is provided on the top edge of the box (110).

6. The electric vehicle battery box according to claim 1, characterized in that: One side of the box cover (120) and the outer edge of the box (110) are connected via a hinge (180).

7. The electric vehicle battery box according to claim 1, characterized in that: A connecting block (160) is provided on the other side of the box cover (120), and the connecting block (160) is connected to the box (110) via a fixing bolt (170).

8. An electric vehicle, characterized in that: An electric vehicle battery box comprising any one of claims 1-7.

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