Battery replacing mechanism of electric vehicle

Abstract

The utility model discloses a battery changing mechanism of an electric vehicle, which belongs to the technical field of battery changing of electric vehicles and comprises a main body frame, and a frame assembly used for fixing is mounted at the upper end of the main body frame. The frame assembly comprises a first guide slope, a frame side plate device, a detection sensor and a frame back plate device, the first guide slope is arranged at the right end of the main body frame, the main body frame is connected with the frame side plate device, the main body frame is connected with the frame back plate device, and the frame back plate device is connected with the detection sensor; a locking mechanism for pressing the battery is mounted on the frame side plate device; a battery buffer device for reducing impact force is mounted on the frame side plate device; and a plug-in floating device convenient for battery butt joint is mounted on the frame back plate device. According to the mode, the degree of freedom of the battery in all directions is limited, and the function of reversely buckling and blocking can be achieved, so that even if the locking mechanism is slightly loosened, the battery cannot fall off due to the blocking of the inclined plane.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement for electric vehicles, and in particular to a battery replacement mechanism for an electric vehicle. Background Art

[0002] With the advancement of science and technology, electric vehicles are becoming more and more popular. In addition to being used as a means of transportation for family use, they are also widely used in other fields. For example, more and more urban cleaning work uses sweepers to replace pure manual sweeping. It has high work efficiency and reduces the physical burden on workers. Like most electric vehicles, current sweepers are often powered by lithium batteries, which are often installed at the rear end and bottom of the sweeper. For example, Chinese utility model patent CN212709043U discloses a lithium battery replacement device for electric sweepers. The battery is directly fixed to the device to prevent it from falling off. The replaced battery must be aligned with the device to avoid installation failure and power failure.

[0003] However, it still has the following disadvantages: the battery is fixed on the device and cannot be moved, so when the sweeper is hit, the battery cannot be buffered and damaged, and the replaced battery must be aligned with the device, resulting in low installation efficiency and failure to ensure the accuracy of the plug-in docking.

[0004] Based on this, the utility model designs a battery replacement mechanism for an electric vehicle to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a battery replacement mechanism for an electric vehicle.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A battery replacement mechanism for an electric vehicle comprises a main frame, wherein a frame assembly for fixing is installed at the upper end of the main frame;

[0008] The frame assembly includes a guide slope 1, a frame side plate device, a detection sensor and a frame back plate device. The right end of the main frame is provided with a guide slope 1, the main frame is connected to the frame side plate device, the main frame is connected to the frame back plate device, and the frame back plate device is connected to the detection sensor;

[0009] The frame side plate device is provided with a locking mechanism for pressing the battery;

[0010] The frame side plate device is provided with a battery buffer device to reduce impact force;

[0011] The frame back plate device is provided with a plug-in floating device for facilitating battery docking.

[0012] Furthermore, the frame side panel device includes a second guide slope, a guide bar and a frame side panel. The front and rear ends of the main frame are respectively fixedly connected with the frame side panels, the frame side panels are connected to the locking mechanism and the battery buffer device, and the lower ends of the frame side panels are respectively fixedly connected with guide bars, and the right side of the facing end of the guide bar is provided with a second guide slope.

[0013] Furthermore, the frame backplane device includes a blocking step and a frame backplane, the frame backplane is fixedly connected to the left end of the main frame, the detection sensor is fixedly connected to the upper end of the inner wall of the frame backplane, the blocking step is fixedly connected to the lower end of the inner wall of the frame backplane, and the frame backplane is connected to the plug-in floating device.

[0014] Furthermore, the locking mechanism includes a linear actuator device, a bidirectional bevel block device, a compression spring and a locking bolt. The frame side plate is connected to the linear actuator device, the linear actuator device is connected to the compression spring and the locking bolt, the compression spring is connected to the bidirectional bevel block device, and the bidirectional bevel block device is connected to the locking bolt.

[0015] Furthermore, the linear actuator device includes a shaft end and a linear actuator. The left and right ends of the front and rear end frame side plates are respectively fixedly connected with the linear actuators. The lower end of the linear actuator is fixedly connected with the shaft end. The lower end of the linear actuator is fixedly connected with the compression spring. The outer wall of the shaft end is in contact with the compression spring, and the lower end of the shaft end is fixedly connected with a locking bolt.

[0016] Furthermore, the bidirectional bevel block device includes a mounting hole and an inclined surface, the lower end of the compression spring is fixedly connected to the bidirectional bevel block, a mounting hole is opened in the bidirectional bevel block, an inclined surface is opened on the lower side of the front end of the bidirectional bevel block, and the locking bolt passes through the mounting hole and is fixedly connected to the shaft end.

[0017] Furthermore, the battery buffer device includes a damper and a mounting seat, the inner wall of the left end of the front and rear end frame side plates is fixedly connected to the mounting seat, and the right end of the mounting seat is fixedly connected to the damper.

[0018] Furthermore, the plug-in floating device includes a floating positioning block and an electrical plug-in, the electrical plug-in is fixedly connected to the rear end of the frame back plate, and the floating positioning blocks are fixedly connected to the electrical plug-in near the four corners by screws.

[0019] Furthermore, a sliding assembly for sliding out the battery is installed on the main frame.

[0020] The utility model has the following technical effects:

[0021] 1. The utility model allows the battery to slide into the device along the guide slope 1 of the frame assembly provided on the main frame and the guide slope 2 provided on the guide bar of the frame side plate device, guides and positions the slid-in battery through the guide bar and the frame side plate, prevents the battery from colliding with the blocking step through the restriction of the frame back plate on the blocking step of the frame back plate device, prompts the battery to be installed in place through the detection sensor, and ensures that the staff understands the installation status of the device through the prompt of the device.

[0022] 2. The utility model fixes the shaft end through the linear actuator of the linear actuator device of the locking mechanism, and presses the inclined surface of the bidirectional inclined block device to move upward along the shaft end and compress the compression spring through the installed battery, and fixes the bidirectional inclined block passing through the mounting hole to the shaft end through the locking bolt to prevent the bidirectional inclined block from falling off, and presses the locking block on the battery housing through the inclined surface opened on the bidirectional inclined block to lock the battery. By limiting the freedom of the battery in all directions and playing the role of inverted blocking, even if the locking mechanism is slightly loose, the battery will not fall out due to the blocking of the inclined surface, thereby avoiding serious accidents.

[0023] 3. The utility model reduces the impact force of the battery by means of the damper on the mounting seat of the battery buffer device, and can prevent damage to the battery and the electrical plug-in due to accidental impact by buffering the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A three-dimensional diagram of a battery replacement mechanism for an electric vehicle according to the utility model Figure 1 ;

[0026] Figure 2 A three-dimensional diagram of a battery replacement mechanism for an electric vehicle according to the utility model Figure 2 ;

[0027] Figure 3 A part of a battery replacement mechanism of an electric vehicle of the utility model Figure 1 ;

[0028] Figure 4 It is a partial exploded view of a battery replacement mechanism of an electric vehicle of the utility model;

[0029] Figure 5A diagram of a battery buffer device of a battery replacement mechanism of an electric vehicle according to the utility model;

[0030] Figure 6 A plug-in floating diagram of a battery replacement mechanism for an electric vehicle according to the utility model.

[0031] The numbers in the figure represent:

[0032] 1. Main frame 2. Locking mechanism 21. Linear actuator device 22. Bidirectional inclined block device 23. Compression spring 24. Locking bolt 211. Shaft end 212. Linear actuator 221. Mounting hole 222. Inclined surface 223. Bidirectional inclined block 3. Battery buffer device 31. Damper 32. Mounting seat 4. Plug-in floating device 41. Floating positioning block 42. Electrical plug-in 5. Frame assembly 51. Guide inclined surface 1 52. Frame side plate device 53. Detection sensor 54. Frame back plate device 521. Guide inclined surface 2 522. Guide strip 523. Frame side plate 541. Blocking step 542. Frame back plate 6. Slide plate assembly. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model is further described below in conjunction with embodiments.

[0035] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0036] Please refer to the instruction manual Figure 1-6 , a battery replacement mechanism for an electric vehicle, comprising a main frame 1;

[0037] A frame assembly 5 for fixing is installed at the upper end of the main frame 1, and the frame assembly 5 is connected with the locking mechanism 2, the battery buffer device 3 and the plug-in floating device 4;

[0038] The frame assembly 5 includes a guide slope 51, a frame side plate device 52, a detection sensor 53 and a frame back plate device 54. The right end of the main frame 1 is provided with a guide slope 51, the main frame 1 is connected to the frame side plate device 52, the frame side plate device 52 is connected to the locking mechanism 2 and the battery buffer device 3, the main frame 1 is connected to the frame back plate device 54, and the frame back plate device 54 is connected to the detection sensor 53 and the plug-in floating device 4;

[0039] The frame side plate device 52 includes a second guiding slope 521, a guiding strip 522 and a frame side plate 523. The front and rear ends of the main frame 1 are respectively fixedly connected with the frame side plates 523. The frame side plates 523 are connected to the locking mechanism 2 and the battery buffer device 3. The lower ends of the frame side plates 523 are respectively fixedly connected with the guiding strip 522. The right side of the opposite end of the guiding strip 522 is provided with a second guiding slope 521.

[0040] The frame back plate device 54 includes a blocking step 541 and a frame back plate 542. The left end of the main frame 1 is fixedly connected to the frame back plate 542. The upper end of the inner wall of the frame back plate 542 is fixedly connected to the detection sensor 53. The lower end of the inner wall of the frame back plate 542 is fixedly connected to the blocking step 541. The frame back plate 542 is connected to the plug-in floating device 4.

[0041] In the embodiment of the utility model, when the battery starts to be installed, the battery is slid into the device along the guide bevel 1 51 of the frame assembly 5 opened on the main frame 1 and the guide bevel 2 521 opened on the guide bar 522 of the frame side panel device 52, and the slid-in battery is guided and positioned by the guide bar 522 and the frame side panel 523. The battery is prevented from colliding with the blocking step 541 by the restriction of the frame back plate 542 on the blocking step 541 of the frame back panel device 54, and the battery is prompted to be in place by the detection sensor 53, and the prompt of the device ensures that the staff understands the installation status of the device.

[0042] In some embodiments, please refer to the attached instructions. Figure 3-4 , a locking mechanism 2 for pressing the battery is installed on the frame assembly 5;

[0043] The locking mechanism 2 includes a linear actuator device 21, a bidirectional inclined block device 22, a compression spring 23 and a locking bolt 24. The frame side plate 523 is connected to the linear actuator device 21, the linear actuator device 21 is connected to the compression spring 23 and the locking bolt 24, the compression spring 23 is connected to the bidirectional inclined block device 22, and the bidirectional inclined block device 22 is connected to the locking bolt 24.

[0044] The linear actuator device 21 includes a shaft end 211 and a linear actuator 212. The left and right ends of the front and rear frame side plates 523 are respectively fixedly connected with the linear actuator 212. The lower end of the linear actuator 212 is fixedly connected with the shaft end 211. The lower end of the linear actuator 212 is fixedly connected with the compression spring 23. The outer wall of the shaft end 211 is in contact with the compression spring 23. The lower end of the shaft end 211 is fixedly connected with a locking bolt 24.

[0045] The bidirectional inclined block device 22 includes a mounting hole 221 and an inclined surface 222. The lower end of the compression spring 23 is fixedly connected to the bidirectional inclined block 223. The bidirectional inclined block 223 has a mounting hole 221, and the lower side of the front end of the bidirectional inclined block 223 has an inclined surface 222. The locking bolt 24 passes through the mounting hole 221 and is fixedly connected to the shaft end 211.

[0046] In the embodiment of the utility model, after the battery is installed, the linear actuator 212 of the linear actuator device 21 of the locking mechanism 2 is used to fix the shaft end 211, and the installed battery compresses the inclined surface 222 of the bidirectional inclined block device 22 to move upward along the shaft end 211 and compress the compression spring 23, and the bidirectional inclined block 223 passing through the mounting hole 221 is fixed to the shaft end 211 by the locking bolt 24 to prevent the bidirectional inclined block 223 from falling off, and the locking block on the battery housing is pressed by the inclined surface 222 opened on the bidirectional inclined block 223 to achieve the locking of the battery. By limiting the freedom of the battery in all directions and playing the role of inverted blocking, even if the locking mechanism is slightly loose, the battery will not fall out due to the obstruction of the inclined surface, thereby avoiding serious accidents.

[0047] In some embodiments, please refer to the attached instructions. Figure 5-6 , a battery buffer device 3 for reducing impact force is installed on the frame assembly 5;

[0048] The battery buffer device 3 includes a damper 31 and a mounting seat 32. The mounting seat 32 is fixedly connected to the inner wall of the left end of the front and rear end frame side plates 523, and the damper 31 is fixedly connected to the right end of the mounting seat 32.

[0049] In the embodiment of the utility model, when the device is impacted, the impact force of the battery is reduced by the damper 31 on the mounting seat 32 of the battery buffer device 3, and the battery buffering can prevent the battery and the electrical plug-in from being damaged by accidental impact.

[0050] The frame assembly 5 is provided with a plug-in floating device 4 for facilitating battery docking;

[0051] The plug-in floating device 4 includes a floating positioning block 41 and an electrical plug-in 42. The electrical plug-in 42 is fixedly connected to the rear end of the frame back plate 542. The electrical plug-in 42 is fixedly connected to the floating positioning block 41 near the four corners by screws.

[0052] In an embodiment of the utility model, when the device starts to be installed, the battery is positioned by the floating positioning block 41 of the plug-in floating device 4, and is connected to the battery through the electrical plug-in 42. The automatic positioning of the device can reduce the accuracy requirements of the battery replacement process, ensure the accuracy of the plug-in docking process, and avoid damage to the plug-in caused by vehicle driving vibration.

[0053] In some embodiments, please refer to the attached instructions. Figure 1-6 , a sliding assembly 6 for sliding out the battery is installed on the main frame 1;

[0054] The sliding component 6 can be made of wear-resistant strips or plates, such as iglidur brand B160 wear-resistant strips, or other wear-resistant materials with low friction coefficients. The use of wear-resistant strips and plates as sliding components can further reduce the thickness (height) of the entire device, and can further effectively utilize limited space. The utility model is convenient and quick to replace the battery by pulling out the slide of the sliding component. In the case of ample space, the sliding component can also adopt structures such as slide rails and roller components, which will not be repeated.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery replacement mechanism for an electric vehicle, comprising a main frame (1), characterized in that: A frame assembly (5) for fixing is installed at the upper end of the main frame (1); The frame assembly (5) comprises a guiding inclined plane (51), a frame side plate device (52), a detection sensor (53) and a frame back plate device (54); the right end of the main frame (1) is provided with a guiding inclined plane (51); the main frame (1) is connected to the frame side plate device (52); the main frame (1) is connected to the frame back plate device (54); and the frame back plate device (54) is connected to the detection sensor (53); The frame side plate device (52) is provided with a locking mechanism (2) for pressing the battery; The frame side plate device (52) is provided with a battery buffer device (3) for reducing impact force; The frame back plate device (54) is provided with a plug-in floating device (4) for facilitating battery docking.

2. The battery replacement mechanism for an electric vehicle according to claim 1, characterized in that: The frame side plate device (52) comprises a second guiding inclined surface (521), a guiding strip (522) and a frame side plate (523); the front and rear ends of the main frame (1) are respectively fixedly connected with the frame side plates (523); the frame side plates (523) are connected with the locking mechanism (2) and the battery buffer device (3); the lower end of the frame side plate (523) is respectively fixedly connected with a guiding strip (522) at the opposite end; and the right side of the opposite end of the guiding strip (522) is provided with a second guiding inclined surface (521).

3. The battery replacement mechanism of an electric vehicle according to claim 2, characterized in that: The frame back plate device (54) comprises a blocking step (541) and a frame back plate (542); the left end of the main frame (1) is fixedly connected to the frame back plate (542); the upper end of the inner wall of the frame back plate (542) is fixedly connected to a detection sensor (53); the lower end of the inner wall of the frame back plate (542) is fixedly connected to the blocking step (541); and the frame back plate (542) is connected to the plug-in floating device (4).

4. The battery replacement mechanism for an electric vehicle according to claim 3, characterized in that: The locking mechanism (2) comprises a linear actuator device (21), a bidirectional inclined block device (22), a compression spring (23) and a locking bolt (24); the frame side plate (523) is connected to the linear actuator device (21); the linear actuator device (21) is connected to the compression spring (23) and the locking bolt (24); the compression spring (23) is connected to the bidirectional inclined block device (22); and the bidirectional inclined block device (22) is connected to the locking bolt (24).

5. The battery replacement mechanism for an electric vehicle according to claim 4, characterized in that: The linear actuator device (21) comprises a shaft end (211) and a linear actuator (212); the left and right ends of the front and rear end frame side plates (523) are respectively fixedly connected with the linear actuator (212); the lower end of the linear actuator (212) is fixedly connected with the shaft end (211); the lower end of the linear actuator (212) is fixedly connected with the compression spring (23); the outer wall of the shaft end (211) is in contact with the compression spring (23); and the lower end of the shaft end (211) is fixedly connected with a locking bolt (24).

6. The battery replacement mechanism for an electric vehicle according to claim 5, characterized in that: The bidirectional inclined block device (22) comprises a mounting hole (221) and an inclined surface (222); the lower end of the compression spring (23) is fixedly connected to the bidirectional inclined block (223); the mounting hole (221) is provided in the bidirectional inclined block (223); the lower side of the front end of the bidirectional inclined block (223) is provided with an inclined surface (222); and the locking bolt (24) passes through the mounting hole (221) and is fixedly connected to the shaft end (211).

7. The battery replacement mechanism for an electric vehicle according to claim 6, characterized in that: The battery buffer device (3) comprises a damper (31) and a mounting seat (32); the mounting seat (32) is fixedly connected to the inner wall of the left end of the front and rear end frame side plates (523); and the damper (31) is fixedly connected to the right end of the mounting seat (32).

8. The battery replacement mechanism for an electric vehicle according to claim 7, characterized in that: The plug-in floating device (4) comprises a floating positioning block (41) and an electrical plug-in (42); the electrical plug-in (42) is fixedly connected to the rear end of the frame back plate (542); and the floating positioning blocks (41) are fixedly connected to the electrical plug-in (42) near the four corners by screws.

9. The battery replacement mechanism for an electric vehicle according to any one of claims 1 to 8, characterized in that: A sliding assembly (6) for sliding out the battery is installed on the main frame (1).

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