Electric vehicle lithium battery mounting structure and electric two-wheeled vehicle

Abstract

The utility model relates to the technical field of lithium battery electric vehicles, and discloses an electric vehicle lithium battery mounting structure and an electric two-wheeled vehicle. The electric vehicle lithium battery mounting structure comprises a frame tube and a battery box, a base is arranged at the bottom of the battery box, a power connection port and a first positioning groove are formed in the base, a fixing seat is arranged at the top of the battery box, a locking window is formed in the side surface of the fixing seat, and a second positioning groove and a lock body are arranged in the fixing seat and right opposite to the locking window; a battery bottom support, a positioning piece and a locking piece are arranged on the side surface of the frame tube, the battery bottom support is used for bearing the base, a power connection column matched and conducted with the power connection opening and a positioning protrusion matched and inserted with the first positioning groove are arranged on the battery bottom support, and the positioning piece is used for being inserted into the locking window and matched and inserted with the second positioning groove. The locking piece is used for being inserted into the locking window and matched with the lock body for locking. According to the electric vehicle lithium battery mounting structure, shaking gaps are eliminated, reliable mounting of the battery box is guaranteed, and the working state of the lithium battery is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery electric vehicle technical field especially, a kind of electric vehicle lithium battery mounting structure and electric two-wheeled vehicle. BACKGROUND

[0002] At present, lithium battery electric vehicle demand is big in market, lithium battery is widely used, and whether lithium battery and frame can be reliably fixed is particularly important.Electric two-wheeled vehicle is simple in structure, and the installable position of battery is limited, commonly below seat cushion and below footboard area.To ensure that battery can be reliably fixed, it is necessary to improve frame accuracy and optimize fixing mode, otherwise it is easy to cause battery to exist up and down, left and right, front and back after installation, and the problems such as poor contact of plug-in element, affect battery power supply and service life.In addition, for some battery external or battery detachable structure, the above situation is more likely to occur. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of electric vehicle lithium battery mounting structure and electric two-wheeled vehicle, so that the fixation of battery and frame is more stable and reliable.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of electric vehicle lithium battery mounting structure, including frame pipe and battery box, wherein:

[0006] The bottom of battery box is provided with base, and the base is provided with power connection port and first positioning slot, the top of battery box is provided with fixed seat, the side surface of fixed seat is provided with locking window, and the inside of fixed seat and opposite locking window are provided with second positioning slot and lock body;

[0007] The side surface of frame pipe is provided with battery bottom support, positioning piece and locking piece, battery bottom support is used to support base, and battery bottom support is provided with power connection column matched with power connection port and positioning protrusion matched with first positioning slot for plug-in, positioning piece is used to insert locking window and is matched with second positioning slot for plug-in, and locking piece is used to insert locking window and is matched with lock body for locking.

[0008] As an optional solution, the lock body includes lock cylinder driven to rotate by key and lock bolt driven to extend and retract by lock cylinder, the extension direction of lock bolt is perpendicular to the insertion direction of locking piece, and the first recess is formed on locking piece for lock bolt to insert and lock.

[0009] As an optional solution, spring top column is further arranged in the inside of fixed seat, spring top column and locking piece are oppositely arranged and distributed on the both sides of lock bolt, and when lock bolt is inserted into first recess, spring top column is pressed against locking piece.

[0010] As an alternative, the positioning protrusions are arranged at an angle on the battery base, and the top of the positioning protrusions is farther away from the frame tube relative to the bottom. The first positioning groove is flared, so that when the positioning protrusions are inserted into the first positioning groove, the battery box can swing relative to the battery base.

[0011] As an optional solution, when the battery box is close to the frame tube and the base is close to the battery base, the battery box is installed in place, the power terminal is inserted into the power port, the top of the positioning protrusion abuts against the bottom of the first positioning groove, and the bottom of the positioning protrusion abuts against one side of the first positioning groove.

[0012] As an alternative, when the top of the battery box is separated from the frame tube and the base is tilted relative to the battery base, the battery box is in the detached position, and the power connection post is separated from the power connection port.

[0013] As an alternative, the top of the positioning protrusion is arc-shaped, the bottom shape of the first positioning groove is adapted to the top shape of the positioning protrusion, and a buffer layer is provided on the bottom surface of the first positioning groove.

[0014] As an alternative, the positioning element is limited by cooperating with the lower edge of the locking window, and the locking element is limited by cooperating with the upper edge of the locking window.

[0015] As an alternative, the shape of the second positioning groove is adapted to the shape of the positioning component, and the second positioning groove is provided with a limiting protrusion, and the positioning component is provided with a second groove that engages with the limiting protrusion.

[0016] An electric two-wheeled vehicle adopts the above-mentioned electric vehicle lithium battery mounting structure.

[0017] The beneficial effects of this utility model are:

[0018] The lithium battery mounting structure for this electric vehicle features a battery base, positioning components, and locking components on the frame tube for the base at the bottom and the fixing seat at the top of the battery box. This provides multiple limits and locks on the battery box, eliminating wobbling gaps and ensuring reliable installation of the battery box, thus making the lithium battery work stably. Electric two-wheelers using this structure have a tighter fit between the battery box and the frame tube, making it easier to install and remove the battery box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the electric vehicle lithium battery mounting structure provided in this embodiment of the utility model;

[0020] Figure 2 This is an exploded view of the battery box, battery base, positioning component, and locking component provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram showing the cooperation between the base and the battery holder provided in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram showing the cooperation between the fixing base, positioning component, and locking component provided in this embodiment of the utility model.

[0023] In the attached image:

[0024] 1. Frame tube; 2. Battery box; 3. Base; 4. First positioning groove; 5. Fixing seat; 6. Locking window; 7. Second positioning groove; 8. Battery base; 9. Positioning component; 10. Locking component; 11. Power terminal; 12. Positioning protrusion; 13. Lock cylinder; 14. Lock tongue; 15. First groove; 16. Spring top post; 17. Buffer layer; 18. Limiting protrusion; 19. Second groove. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0030] Please see Figures 1 to 4 As shown, this embodiment provides a lithium battery mounting structure for an electric vehicle, including a frame tube 1 and a battery box 2, wherein:

[0031] The bottom of the battery box 2 is provided with a base 3, the base 3 is provided with a power inlet and a first positioning groove 4, the top of the battery box 2 is provided with a fixing seat 5, the side surface of the fixing seat 5 is provided with a locking window 6, and the inside of the fixing seat 5 and facing the locking window 6 is provided with a second positioning groove 7 and a lock body.

[0032] The side surface of the frame tube 1 is provided with a battery base 8, a positioning member 9 and a locking member 10. The battery base 8 is used to support the base 3, and the battery base 8 is provided with a power connection post 11 that is connected to the power connection port and a positioning protrusion 12 that is inserted into the first positioning groove 4. The positioning member 9 is used to insert into the locking window 6 and is inserted into the second positioning groove 7. The locking member 10 is used to insert into the locking window 6 and is locked with the lock body.

[0033] Therefore, a battery base support 8, a positioning component 9, and a locking component 10 are respectively provided on the frame tube 1 for the base 3 at the bottom and the fixing seat 5 at the top of the battery box 2, so as to limit and lock the battery box 2 in multiple places, eliminate the shaking gap, ensure the reliable installation of the battery box 2, and make the lithium battery work stably.

[0034] Optionally, the lock body includes a lock cylinder 13 driven to rotate by a key and a bolt 14 driven to extend and retract by the lock cylinder 13. The extension and retraction direction of the bolt 14 is perpendicular to the insertion direction of the locking member 10. The locking member 10 is provided with a first groove 15 for the bolt 14 to be inserted to form a lock.

[0035] The locking element 10 here is preferably in the shape of a "7". The locking element 10 is provided with a mounting hole. The front end of the locking element 10 extends into the locking window 6, and the lower surface of the front extension is provided with two reinforcing ribs to improve the strength of the locking element 10. The first groove 15 is located at the front end of the reinforcing ribs.

[0036] Therefore, when the locking member 10 is inserted into the locking window 6, the locking tongue 14 of the lock body is embedded in the first groove 15, so that the locking member 10 is locked and the battery box 2 and the frame tube 1 are locked; when the locking tongue 14 is retracted to release the locking member 10, the locking function between the battery box 2 and the frame tube 1 is invalidated, and the battery box 2 can be detached from the frame tube 1.

[0037] Furthermore, the fixed base 5 is also provided with a spring top post 16. The spring top post 16 and the locking member 10 are arranged opposite to each other and distributed on both sides of the locking tongue 14. When the locking tongue 14 is inserted into the first groove 15, the spring top post 16 presses against the locking member 10.

[0038] The fixing base 5 here is an irregularly shaped shell formed by heat treatment and forging, and has a built-in lock body and spring top post 16. The spring top post 16 is made of stainless steel cylinder, and after the spring is installed in the hollow interior, it forms an elastic cylinder. When the locking part 10 and the lock tongue 14 are engaged and locked, the spring top post 16 is used to press the locking part 10, which strengthens the cooperation effect between the locking part 10 and the lock tongue 14 and eliminates the wobbling gap.

[0039] Optionally, the positioning protrusions 12 are arranged obliquely on the battery base 8, and the top of the positioning protrusions 12 is far away from the frame tube 1 relative to the bottom. The first positioning groove 4 is flared, so that when the positioning protrusions 12 are inserted into the first positioning groove 4, the battery box 2 can swing relative to the battery base 8.

[0040] Furthermore, when the battery box 2 is abutting against the frame tube 1 and the base 3 is abutting against the battery base 8, the battery box 2 is in place, the power connector 11 is inserted into the power connector, the top of the positioning protrusion 12 abuts against the bottom of the first positioning groove 4, and the bottom of the positioning protrusion 12 abuts against one side opening of the first positioning groove 4. See details. Figure 3 .

[0041] The battery base 8 is made of plastic and is thermoformed to form an irregular shape. The inclined positioning protrusion 12 can cooperate with the flared first positioning groove 4 to limit the position, so that the battery box 2 is not easy to shake after installation and ensures reliable power connection.

[0042] Furthermore, when the top of the battery box 2 is separated from the frame tube 1 and the base 3 is tilted relative to the battery base 8, the battery box 2 is in the disassembled position, and the power connection post 11 is separated from the power connection port. See details. Figure 4 .

[0043] Therefore, by using the inclined positioning protrusion 12 and the flared first positioning groove 4 for assembly, the base 3 and the battery base 8 can be reliably assembled to ensure the electrical connection effect, and the battery box 2 can be installed at an incline, thus improving the ease of assembly and disassembly of the battery box 2.

[0044] Furthermore, the top of the positioning protrusion 12 is arc-shaped, the bottom shape of the first positioning groove 4 is adapted to the top shape of the positioning protrusion 12, and a buffer layer 17 is provided on the bottom surface of the first positioning groove 4.

[0045] Therefore, the arc shape can reduce the wear on the top of the positioning protrusion 12, and the buffer layer 17 can further reduce contact damage and fill the gap, ensuring that the battery box 2 does not wobble after being installed in place.

[0046] Optionally, the positioning element 9 is engaged with the lower edge of the locking window 6 for limiting, and the locking element 10 is engaged with the upper edge of the locking window 6 for limiting.

[0047] Therefore, the upper and lower positional relationship of the locking member 10 and the positioning member 9 forms a certain limiting function for the top of the battery box 2. However, given that the battery box 2 is installed by first positioning the bottom and then locking the top, it is necessary to reasonably control the cooperation gap between the locking member 10 and the positioning member 9 and the locking window 6 respectively.

[0048] Optionally, the shape of the cavity of the second positioning groove 7 is adapted to the shape of the positioning member 9, and the second positioning groove 7 is provided with a limiting protrusion 18, and the positioning member 9 is provided with a second groove 19 that engages with the limiting protrusion 18.

[0049] The positioning element 9 here is preferably L-shaped, and has a mounting hole. The front end of the positioning element 9 extends into the second positioning groove 7 in the locking window 6, and further cooperates with the limiting protrusion 18 on the second positioning groove 7 through the second groove 19 on the front end, thereby improving the accurate positioning and supporting function of the battery box 2. The shapes of the limiting protrusion 18 and the second groove 19 correspond to each other. Here, a square groove is used as an example, but it is not limited to this.

[0050] Detailed installation process:

[0051] The base 3 of the battery box 2 is placed obliquely on the battery base 8, and the positioning protrusion 12 is embedded in the first positioning groove 4. The battery box 2 is gradually raised until the fixing seat 5 is close to the frame tube 1. At this time, the power terminal 11 is inserted into the power terminal, and the positioning member 9 passes through the locking window 6 and is inserted into the second positioning groove 7. The locking member 10 passes through the locking window 6 and is inserted into the lock body. The lock tongue 14 is inserted into the first groove 15 of the locking member 10 to form a lock. At this time, the spring top post 16 presses against the locking member 10 to generate top pressure, which improves the locking effect, thereby ensuring that the battery box 2 is not easy to shake in front and back, left and right, and up and down after installation.

[0052] Detailed disassembly process:

[0053] After the key is inserted into the lock body, it drives the bolt 14 to exit the first groove 15, thereby releasing the locking member 10; the elastic force of the spring top post 16 acts on the locking member 10, causing the battery box 2 to move away from the frame tube 1 as a whole, and at the same time the power terminal 11 separates from the power terminal, the positioning member 9 and the locking member 10 exit the locking window 6 until the battery box 2 is tilted to the disassembly position, at which point the entire battery box 2 can be removed from the battery base 8.

[0054] Based on this, this embodiment also provides an electric two-wheeled vehicle that adopts the above-described electric vehicle lithium battery mounting structure.

[0055] With this structure, the battery box 2 and the frame tube 1 fit together more tightly, and the battery box 2 is easier to install and remove.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electric vehicle lithium battery mounting structure, comprising a frame tube (1) and a battery box (2), characterized in that, a base (3) is arranged on the bottom of the battery box (2), the base (3) is provided with an electrical connection port and a first positioning groove (4), a fixing seat (5) is arranged on the top of the battery box (2), the side surface of the fixing seat (5) is provided with a locking window (6), and a second positioning groove (7) and a lock body are arranged inside the fixing seat (5) and opposite to the locking window (6); a battery bottom support (8), a positioning piece (9) and a locking piece (10) are arranged on the side surface of the frame tube (1), the battery bottom support (8) is used for supporting the base (3), the battery bottom support (8) is provided with an electrical connection column (11) matched with the electrical connection port and a positioning protrusion (12) matched with the first positioning groove (4), the positioning piece (9) is used for being inserted into the locking window (6) and matched with the second positioning groove (7), and the locking piece (10) is used for being inserted into the locking window (6) and matched with the lock body.

2. The electric vehicle lithium battery mounting structure according to claim 1, characterized by, The lock body comprises a lock cylinder (13) driven to rotate by a key and a lock bolt (14) driven to perform telescopic action by the lock cylinder (13), the telescopic direction of the lock bolt (14) is perpendicular to the insertion direction of the locking piece (10), and the locking piece (10) is provided with a first recess (15) for the lock bolt (14) to be inserted and locked.

3. The electric vehicle lithium battery mounting structure according to claim 2, wherein The inside of the fixing seat (5) is further provided with a spring top column (16), the spring top column (16) and the locking piece (10) are oppositely arranged and distributed on both sides of the lock bolt (14), and when the lock bolt (14) is inserted into the first recess (15), the spring top column (16) presses against the locking piece (10).

4. The electric vehicle lithium battery mounting structure according to claim 1, characterized by, The positioning protrusions (12) are arranged obliquely on the battery bottom support (8), the top of the positioning protrusion (12) is away from the frame tube (1) relative to the bottom, and the first positioning groove (4) is in the shape of a flared opening, so that when the positioning protrusion (12) is inserted into the first positioning groove (4), the battery box (2) can swing relative to the battery bottom support (8).

5. The electric vehicle lithium battery mounting structure according to claim 4, characterized by, When the battery box (2) is abutted against the frame tube (1) and the base (3) is abutted against the battery bottom support (8), the battery box (2) is mounted in place, the electrical connection column (11) is inserted into the electrical connection port, the top of the positioning protrusion (12) is abutted against the groove bottom of the first positioning groove (4), and the bottom of the positioning protrusion (12) is abutted against one side opening of the first positioning groove (4).

6. The electric vehicle lithium battery mounting structure according to claim 4, wherein When the top of the battery box (2) is separated from the frame tube (1) and the base (3) is inclined relative to the battery bottom support (8), the battery box (2) is in a dismounting position, and the electrical connection column (11) is separated from the electrical connection port.

7. The electric vehicle lithium battery mounting structure according to claim 4, wherein The top of the positioning protrusion (12) is in the shape of a circular arc, the shape of the groove bottom of the first positioning groove (4) is matched with the shape of the top of the positioning protrusion (12), and the groove bottom surface of the first positioning groove (4) is provided with a buffer layer (17).

8. The electric vehicle lithium battery mounting structure according to claim 1, wherein The positioning member (9) is limited by the lower edge of the locking window (6), and the locking member (10) is limited by the upper edge of the locking window (6).

9. The electric vehicle lithium battery mounting structure according to claim 1, wherein The shape of the cavity of the second positioning groove (7) is matched with the shape of the positioning member (9), and the second positioning groove (7) is provided with a limiting protrusion (18), and the positioning member (9) is provided with a second groove (19) matched with the limiting protrusion (18) for plugging.

10. Electric two-wheeled vehicle, characterized in that The electric vehicle lithium battery mounting structure of any one of claims 1-9.

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