Battery box locking mechanism and vehicle

Abstract

The invention provides a battery box locking mechanism and a vehicle. The battery box locking mechanism comprises a first guide part, a second guide part arranged on a battery and at least one locking part arranged on a battery bracket. And the second guide part comprises a second guide plate pivoted on the battery bracket and a first elastic piece propped against the second guide plate. The first guide part is provided with a first guide plate, the first guide plate and the second guide plate are oppositely arranged and define an inverted-splayed open groove, when the battery box moves downwards, the second guide plate pivots relative to the battery bracket, and the first elastic piece is compressed to store energy. The locking part comprises a locking seat, a first driving part connected to the locking seat, and a locking rod connected to the power output end of the first driving part. The locking seat is provided with a locking groove, the battery box is provided with a guide rod matched with the locking groove, and the first driving part drives the locking rod to abut against the guide rod so as to limit displacement of the battery box. According to the invention, the alignment accuracy during replacement of the battery box can be realized, and the clamping stagnation phenomenon is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle charging equipment, and in particular to a battery box locking mechanism. The present invention also relates to a vehicle provided with the battery box locking mechanism. Background Art

[0002] The battery replacement technology routes for pure electric heavy-duty trucks include overall single-sided battery replacement solutions, top-mounted battery replacement solutions, overall double-sided battery replacement solutions and other different methods, each of which has its own advantages and disadvantages.

[0003] The top-hanging battery swap solution was the first to be piloted. Since this battery swap method uses steel cables to lift the battery pack, the steel cables have a certain degree of flexibility when the battery pack is close to being seated, making it easier to achieve tolerance of errors. Therefore, the top-hanging battery swap solution is a battery swap solution with simple technology, low cost, and good feasibility. It is also an early commercial battery swap solution.

[0004] Because the positioning method of top-hanging battery swapping is relatively simple and requires high driving skills from the driver, in closed scenes such as ports and mines where drivers have undergone intensive training, the driver management advantage can be brought into play, the control system can be simplified and the cost can be reduced. However, due to the low degree of automation and intelligence in the battery swapping process, the potential for further improving the speed of battery swapping is low. In addition, since the gripper for top-hanging battery swapping needs to rise above the vehicle, the total height of the equipment is relatively high, resulting in a high safety hazard.

[0005] Therefore, the advantage of side-swap is that the height of the main equipment of the swap station is equivalent to the height of the vehicle. In particular, the biggest advantage of the overall double-sided swap is that the battery does not occupy the cargo box space, which is suitable for mining trucks with limited battery storage space. When replacing the battery of a pure electric mining truck, the battery box can be replaced from the side using a forklift, without having to go to a swap station for replacement.

[0006] The existing positioning devices generally use guide blocks and positioning pins for positioning. Although the positioning of the battery box can be achieved, the complete locking and positioning of the battery box still needs to be further improved.

[0007] Furthermore, in the existing side battery-swap structure, the battery box is guided and installed by the guide mechanism on the battery bracket during the process of the battery box being lowered. However, in the actual battery-swap process, since the battery bracket is installed on the vehicle body frame, the uneven surface of the frame causes an angle error between the battery bracket and the side-mounted battery box, and the battery bracket also has a processing error. The errors due to the above two reasons cause the size and angle of the guide mechanism to change. After the battery box falls, there may be a gap between the battery bracket or it may get stuck and fail to fall, causing the battery box to be unable to be locked.

[0008] In addition, since the weight of the battery box often reaches more than 3 tons, if the battery box is stuck on the battery bracket, it is necessary to overcome the great friction between the forklift and the battery box to correct it, which makes it very difficult to correct the battery box. As a result, the operation and adjustment of the battery box replacement is difficult and the replacement efficiency is very low, which affects the normal use of the mining tram. Summary of the invention

[0009] In view of this, the present invention aims to provide a battery box locking mechanism to achieve accurate alignment when replacing the battery box, avoid jamming, and effectively reduce adjustment time.

[0010] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0011] A battery box locking mechanism comprises a first guide portion arranged on one side of a battery bracket, a second guide portion arranged on the other side of the battery bracket, and at least one locking portion arranged on the battery bracket;

[0012] The second guide portion comprises a second guide plate pivoted on the battery bracket, and a first elastic member abutting against the second guide plate;

[0013] The first guide portion is provided with a first guide plate connected to the battery bracket, the first guide plate is arranged opposite to the second guide plate, and is surrounded by an inverted eight-shaped opening groove, when the battery box moves downward, the second guide plate pivots relative to the battery bracket, and the first elastic member is compressed to store energy;

[0014] The locking part includes a locking seat connected to the battery bracket, a first driving part connected to the locking seat, and a locking rod connected to the power output end of the first driving part;

[0015] The locking seat is provided with a locking groove extending along the length direction of the battery bracket, the battery box is provided with a guide rod adapted to the locking groove, and the first driving part drives the locking rod to abut against the guide rod to limit the displacement of the battery box.

[0016] Furthermore, a connecting seat is provided at the power output end of the first driving part, a connecting rod is pivotally connected between the connecting seat and the locking rod, and rod end bearings are respectively provided at both ends of the connecting rod.

[0017] Furthermore, an abutting slope is provided at the abutting end of the locking rod and the guide rod, and the abutting slope is arranged to be inclined upward along the extending direction of the locking rod.

[0018] Furthermore, the locking seat is fixed to the battery bracket via a mounting seat, and a plurality of pads are provided between the mounting seat and the locking seat;

[0019] The pad is used to adjust the height of the locking seat.

[0020] Furthermore, the locking mechanism further includes a limiting portion provided on one side of the battery bracket, and the limiting portion includes a lug provided on the upper seat of the power converter and a limiting pin provided on the lower seat of the power converter;

[0021] The upper base of the power changer is connected to the battery box;

[0022] The lug is provided with a limiting hole, and the lug and the limiting pin are arranged correspondingly up and down.

[0023] Furthermore, the battery bracket is also provided with a second driving part located below the lower seat of the power changer, and a driving component arranged at the power output end of the second driving part, and the lower seat of the power changer is connected to the driving component.

[0024] Furthermore, the driving assembly includes a bottom plate connected to the power output end of the second driving part, at least three sliding rods slidingly penetrating the bottom plate, and the sliding rods are connected below the lower seat of the converter;

[0025] A second elastic member is sleeved on the outer side of the slide rod, and the second elastic member is arranged between the lower seat of the power converter and the bottom plate.

[0026] Furthermore, a sleeve is provided on the outside of the slide rod, a through hole is provided in the sleeve, and the diameter of the through hole is adapted to the diameter of the slide rod;

[0027] A circular hole for accommodating the second elastic member is also formed in the sleeve, and the circular hole and the through hole form a coaxial stepped hole.

[0028] Furthermore, a limiting column is provided on the bottom plate, the height of the limiting column is greater than the height of the sleeve, and a plurality of the limiting columns are provided below the lower seat of the power converter.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] The battery box locking mechanism described in the present invention is provided with a first guide plate and a second guide plate relative to each other on the battery bracket, so that when the battery box is inserted into the battery bracket, it can move downward along the guide of the inverted eight-shaped opening groove, the second guide plate is pivotally connected to the battery bracket, and the first elastic member abuts against the second guide plate. In this way, when the battery box moves downward, the position of the first guide plate is used as a reference, and the elastic compression of the first elastic member allows the battery box to smoothly reach the bottom of the battery bracket to avoid interference. In addition, by providing a locking rod to lock the guide rod on the battery box in the locking groove, the battery box is accurately locked, and the battery box will not be unable to be locked due to the battery box not being installed in place.

[0031] In addition, by arranging a connecting rod on the connecting seat on the output end of the first driving unit, rod end bearings are arranged between the connecting rod and the connecting seat and between the connecting rod and the locking rod, thereby eliminating the error between the locking rod and the power output rod of the first driving unit, preventing collision and jamming when locking the battery box guide rod, and improving the locking range and locking effect.

[0032] In addition, by setting an abutment slope on the locking rod, the abutment slope is inclined upward along the extending direction of the locking rod. When the locking rod is driven to be squeezed above the guide rod so that the guide rod can smoothly enter the locking groove, the abutment slope can be locked with the abutment surface of the guide rod, thereby increasing the locking area and improving the stability of the battery box.

[0033] In addition, a lug with a limiting hole is provided on the upper seat of the power changer, and a limiting pin corresponding to the limiting hole is provided on the lower seat of the power changer. When the battery box is connected to the battery bracket, the limiting pin is inserted into the limiting hole to facilitate guiding the position of the upper and lower seats of the power changer, thereby improving the accuracy of the connection of the electrical plug of the power changer and achieving the purpose of automatic plug-in without manual operation.

[0034] Another object of the present invention is to provide a vehicle, comprising the battery box locking mechanism as described above.

[0035] The vehicle described in the present invention realizes automatic replacement of the vehicle's battery box by providing the battery box locking mechanism as described above, and achieves accurate positioning during the battery box replacement process, avoiding the process of debugging the battery box position, and avoiding the situation where the battery box cannot be completely locked due to being stuck on the battery bracket, thereby achieving the safety and reliability of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a schematic diagram of the assembly of the battery box locking mechanism, the battery box, and the battery box bracket from a first viewing angle according to an embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the assembly of the battery box locking mechanism, the battery box, and the battery box bracket from a second viewing angle according to an embodiment of the present invention;

[0039] Figure 3 It is a schematic assembly perspective diagram of the battery box locking mechanism, the battery box, and the battery box bracket from a third viewing angle according to an embodiment of the present invention;

[0040] Figure 4 It is a top view schematic diagram of the assembly of the battery box locking mechanism, the battery box, and the battery box bracket according to an embodiment of the present invention;

[0041] Figure 5 It is a schematic three-dimensional assembly diagram of a battery box locking mechanism and a battery bracket from a first viewing angle according to an embodiment of the present invention;

[0042] Figure 6 A schematic diagram of the assembly of the battery box locking mechanism and the battery bracket from a second viewing angle according to an embodiment of the present invention;

[0043] Figure 7 is a three-dimensional schematic diagram of a locking portion according to an embodiment of the present invention;

[0044] Figure 8 A schematic front view of a locking portion according to an embodiment of the present invention;

[0045] Fig. 9 for Figure 8 Sectional view at AA in the middle;

[0046] Fig.10 is a cross-sectional schematic diagram of the second guide portion according to an embodiment of the present invention;

[0047] Fig.11 It is a schematic diagram of the assembly of the limiting part, the second driving part, the driving assembly, the upper seat of the converter and the lower seat of the converter from a first perspective according to an embodiment of the present invention;

[0048] Fig.12 It is a schematic diagram of the assembly of the limiting part, the second driving part, the driving assembly, the upper seat of the converter and the lower seat of the converter from a second perspective according to an embodiment of the present invention;

[0049] Fig.13 It is a cross-sectional schematic diagram of the connection between the second elastic member, the sliding rod, the bottom plate and the sleeve according to an embodiment of the present invention;

[0050] Fig.14 It is a schematic diagram of the upper seat of the power changer and its electrical plug and the electrical plug located on the lower seat of the power changer according to an embodiment of the present invention.

[0051] Description of reference numerals:

[0052] 1. First guide part; 2. Second guide part; 3. Locking part; 4. Pad; 5. Guide rod; 6. Battery box; 7. Battery bracket; 8. Limiting part; 9. Upper seat of the electric changer; 10. Lower seat of the electric changer; 11. Electrical plug;

[0053] 101. first guide plate; 102. side plate;

[0054] 201, second guide plate; 202, first elastic member; 203, guide seat;

[0055] 301, locking seat; 302, first driving part; 303, locking rod; 304, connecting seat; 305, connecting rod;

[0056] 801, lug; 802, limit pin; 803, second driving part; 804, driving assembly; 805, limit column;

[0057] 3011, locking groove;

[0058] 3031. Contact slope;

[0059] 8011, limit hole;

[0060] 8041, bottom plate; 8042, slide bar; 8043, second elastic member; 8044, sleeve;

[0061] 30111, first inclined section; 30112, second inclined section; 30113, concave arc section;

[0062] 80441, through hole; 80442, round hole. DETAILED DESCRIPTION

[0063] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0064] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0065] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0066] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0067] This embodiment relates to a battery box locking mechanism, combined with Figures 1 to 4As shown, overall, the battery box locking mechanism includes a first guide portion 1 arranged on one side of the battery bracket 7, a second guide portion 2 arranged on the other side of the battery bracket 7, and at least one locking portion 3 arranged on the battery bracket 7. The second guide portion 2 includes a second guide plate 201 pivoted on the battery bracket 7, and a first elastic member 202 abutting against the second guide plate 201. The first guide portion 1 is provided with a first guide plate 101 connected to the battery bracket 7, the first guide plate 101 and the second guide plate 201 are arranged opposite to each other, and are surrounded by an inverted eight-shaped opening groove. When the battery box 6 moves downward, the second guide plate 201 pivots relative to the battery bracket 7, and the first elastic member 202 is compressed to store energy.

[0068] In addition, the locking part 3 includes a locking seat 301 connected to the battery bracket 7, a first driving part 302 connected to the locking seat 301, and a locking rod 303 connected to the power output end of the first driving part 302. The locking seat 301 is provided with a locking groove 3011 extending along the length direction of the battery bracket 7, and the battery box 6 is provided with a guide rod 5 adapted to the locking groove 3011. The first driving part 302 drives the locking rod 303 to abut against the guide rod 5 to limit the displacement of the battery box 6.

[0069] At this time, as set above, a relative first guide plate 101 and a second guide plate 201 are provided on the battery bracket 7, so that when the battery box 6 is inserted into the battery bracket 7, it can move downward along the guide of the inverted eight-shaped opening groove, so as to guide the battery box 6 to the middle of the battery bracket 7. At the same time, the second guide plate 201 is pivotally connected to the battery bracket 7, and the first elastic member 202 abuts against the second guide plate 201. In this way, when the battery box 6 moves downward, the position of the first guide plate 101 is used as a reference, and the elastic compression of the first elastic member 202 allows the battery box 6 to smoothly reach the bottom of the battery bracket 7, avoiding interference. In addition, by setting a locking rod 303, the guide rod 5 on the battery box 6 is locked in the locking groove 3011, and the battery box 6 is accurately locked, and the battery box 6 will not be unable to be locked due to the battery box 6 not being installed in place.

[0070] Based on the above overall introduction, specifically, it should be pointed out that a plurality of battery brackets 7 are often used in mining trucks to accommodate the battery boxes 6 required for the vehicle. The battery brackets 7 are centrally arranged above the frame behind the cab. Therefore, the battery box locking mechanism of this embodiment is specifically described using a battery bracket 7 and a battery box 6 as an example.

[0071] Specifically, if Figures 5 and 6As shown, the first guide plate 101 and the second guide plate 201 have the same appearance, and side plates 102 are welded on both sides of the first guide plate 101. The two side plates 102 of the first guide portion 1 are welded and fixed to the side walls of the battery bracket 7. A mounting shaft is provided on the upper part of the second guide plate 201, and hanging ears are provided on both sides of the mounting shaft. The hanging ears are fixed on the battery bracket 7, and the second guide plate 201 is pivotally connected to the mounting shaft. In order to achieve a better effect, two groups of first guide portions 1 and second guide portions 2 are set along the width direction of the battery bracket 7. It can be understood that the number of the first guide portions 1 and the second guide portions 2 is not limited here.

[0072] like Fig.10 As shown, the first elastic member 202 includes a telescopic rod abutting against the second guide plate 201 and a telescopic spring sleeved on the telescopic rod. A guide seat 203 is also provided on the battery bracket 7, so that the telescopic rod slides along the guide seat 203, and a receiving hole for receiving the telescopic spring is formed in the guide seat 203. In addition, a gasket is connected to the telescopic rod, and the telescopic spring abuts between the gasket and the guide seat 203. When the telescopic rod is squeezed by the second guide plate 201, the gasket slides in the receiving hole to increase the distance between the first guide plate 101 and the second guide plate 201, so that the battery box 6 can be smoothly installed in place.

[0073] In this embodiment, as a preferred implementation form, Figures 5 to 9 As shown, a connecting seat 304 is provided at the power output end of the first driving part 302, a connecting rod 305 is pivotally connected between the connecting seat 304 and the locking rod 303, and rod end bearings are provided at both ends of the connecting rod 305. Fig. 9 As shown, the connecting seat 304 is threadedly connected to the power output end of the first driving part 302, and the connecting rod 305 is connected by an internal threaded rod end bearing and an external threaded rod end bearing, and the joint ends of the two rod end bearings are fixedly connected to the connecting seat 304 and the locking rod 303 respectively through pins.

[0074] As mentioned above, by arranging a connecting rod 305 on the connecting seat 304 on the output end of the first driving part 302, rod end bearings are provided between the connecting rod 305 and the connecting seat 304 and between the connecting rod 305 and the locking rod 303, thereby eliminating the error between the locking rod 303 and the power output rod of the first driving part 302, preventing collision and jamming when locking the guide rod 5 of the battery box 6, and improving the locking range and locking effect.

[0075] It should be pointed out that if Fig. 9 As shown, the abutting end of the locking rod 303 and the guide rod 5 is provided with an abutting inclined surface 3031, and the abutting inclined surface 3031 is arranged to be inclined upward along the extending direction of the locking rod 303. Figure 7 and Fig. 9As shown, the locking rod 303 passes through the locking seat 301, and the locking groove 3011 includes a first inclined section 30111 close to one side of the locking rod 303, a second inclined section 30112 arranged relative to the first inclined section 30111, and a concave arc section 30113 connecting the first inclined section 30111 and the second inclined section 30112, and the diameter of the concave arc section 30113 is larger than the diameter of the guide rod 5 so as to accommodate the guide rods 5 on both sides of the battery box 6.

[0076] Furthermore, if Figure 7 As shown, the first inclined section 30111 and the second inclined section 30112 do not form an inverted eight-shaped shape. In this way, the position offset of the battery box 6 when entering the battery bracket 7 can be increased, and the guide rod 5 is guided into the arc section by the guidance of the first inclined section 30111 and the second inclined section 30112.

[0077] And, if Figures 1 to 4 As shown, in this embodiment, locking parts 3 are provided on both sides of the battery bracket 7, and two locking parts 3 are provided on the side opposite to the power changer to lock the guide rods 5 at three locations of the battery box 6, which not only improves the locking effect, but also ensures that the surrounding sides of the battery box 6 are in contact with the battery bracket 7, thereby ensuring the contact area between the battery box 6 and the battery bracket 7 and improving the stability of the battery box 6.

[0078] As mentioned above, in this embodiment, an abutment slope 3031 is provided on the locking rod 303. The abutment slope 3031 is inclined upward along the extending direction of the locking rod 303. When the locking rod 303 is driven to be squeezed toward the top of the guide rod 5 so that the guide rod 5 can smoothly enter the locking groove 3011, the abutment slope 3031 can be locked with the abutment surface of the guide rod 5, thereby increasing the locking area and improving the stability of the battery box 6.

[0079] like Figures 5 and 6 As shown, the locking seat 301 is fixed on the battery bracket 7 through the mounting seat, and a plurality of pads 4 are provided between the mounting seat and the locking seat 301, and the pads 4 are used to adjust the height of the locking seat 301. Such a configuration ensures that the heights of the three locking seats 301 are adjusted to a uniform height before the battery box 6 is installed, providing conditions for the successful assembly of the battery box 6, and by providing multiple layers of pads 4 of the same specification, the height of the locking seat 301 is adjusted according to the number of pads 4, that is, the installation area of ​​the locking seat 301 and the battery bracket 7 is ensured to remain unchanged, which provides better stability, avoids the need to disassemble the locking portion 3 separately, and improves the convenience of installation of the battery box locking mechanism.

[0080] As a preferred implementation mode, Figure 5 , Figure 6As shown, the locking mechanism also includes a limiting portion 8 provided on one side of the battery bracket 7, and the limiting portion 8 includes a lug 801 provided on the upper seat 9 of the power converter, and a limiting pin 802 provided on the lower seat 10 of the power converter. The upper seat 9 of the power converter is connected to the battery box 6. The lug 801 is provided with a limiting hole 8011, and the lug 801 and the limiting pin 802 are provided correspondingly up and down.

[0081] like Figure 11 to Figure 12 As shown, the lug 801 includes a connecting rib and a cylinder. In this embodiment, the lug 801 is integrally formed with the upper seat 9 of the converter. In other feasible embodiments, it can also be fixed by bolt connection. Similarly, the limit pin 802 is fixed to the lower seat 10 of the converter by a straight plate. The upper end of the limit pin 802 has a gradually reduced conical section. By setting the conical section, it is easy to insert the limit pin 802 into the limit hole 8011. The maximum outer diameter of the limit pin 802 is adapted to the inner diameter of the limit hole 8011 to achieve precise positioning.

[0082] In this embodiment, a lug 801 with a limiting hole 8011 is provided on the upper seat 9 of the power changer, and a limiting pin 802 corresponding to the limiting hole 8011 is provided on the lower seat 10 of the power changer. When the battery box 6 is connected to the battery bracket 7, the limiting pin 802 is inserted into the limiting hole 8011 to facilitate guiding the positions of the upper seat 9 and the lower seat of the power changer, thereby improving the accuracy of the connection of the electrical plug 11 of the power changer and achieving the purpose of automatic plug-in without manual operation.

[0083] like Figure 11 to Figure 12 As shown, the battery bracket 7 is also provided with a second driving part 803 located below the lower seat 10 of the power converter, and a driving assembly 804 provided at the power output end of the second driving part 803, and the lower seat 10 of the power converter is connected to the driving assembly 804. Figure 11 to Figure 12 As shown, the second driving part 803 adopts a telescopic cylinder with two guide rods, which is arranged so as to ensure that the lower seat 10 of the power changer does not rotate when it rises, and ensure the accuracy of the plugging of the electrical plug 11. After the battery box 6 is installed in place, the second driving part 803 drives the lower seat 10 of the power changer to move toward the upper seat 9 of the power changer, and realizes precise connection through the positioning of the limit pin 802 and the limit hole 8011.

[0084] Furthermore, if Figures 11 to 13 As shown, the driving assembly 804 includes a bottom plate 8041 connected to the power output end of the second driving part 803, at least three sliding rods 8042 slidingly penetrated on the bottom plate 8041, and the sliding rods 8042 are connected below the lower seat 10 of the power converter. A second elastic member 8043 is sleeved on the outer side of the sliding rod 8042, and the second elastic member 8043 is arranged between the lower seat 10 of the power converter and the bottom plate 8041. The second elastic member 8043 is a telescopic spring.

[0085] More specifically, Fig.13As shown, a sleeve 8044 is further provided outside the slide bar 8042, and a through hole 80441 is provided inside the sleeve 8044, and the diameter of the through hole 80441 matches the diameter of the slide bar 8042. A circular hole 80442 for accommodating the second elastic member 8043 is also formed inside the sleeve 8044, and the circular hole 80442 and the through hole 80441 form a coaxial stepped hole.

[0086] In order to protect the electrical connector, it is prevented that the lower seat 10 of the changer moves up too much, causing the electrical plug 11 to continue to move up after being plugged in. Figure 11 to Figure 12 As shown, a limiting column 805 is also provided on the bottom plate 8041 , and the height of the limiting column 805 is greater than the height of the sleeve 8044 , and a plurality of limiting columns 805 are provided below the lower seat 10 of the electric changer.

[0087] In addition, if Fig.14 As shown, in order to ensure that the two electrical appliance plugs 11 can be further accurately positioned, the electrical appliance plug 11 with the positioning pin and the positioning seat is rotated.

[0088] The present embodiment also relates to a vehicle, which includes the battery box locking mechanism as described above.

[0089] The vehicle of this embodiment realizes automatic replacement of the battery box 6 of the vehicle by providing the above-mentioned battery box locking mechanism, and realizes accurate positioning during the replacement of the battery box 6, avoids the process of debugging the position of the battery box 6, and avoids the situation where the battery box 6 cannot be completely locked due to being stuck on the battery bracket 7, thereby realizing the safety and reliability of the vehicle.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery box locking mechanism, characterized in that: It comprises a first guide portion (1) arranged on one side of a battery bracket (7), a second guide portion (2) arranged on the other side of the battery bracket (7), and at least one locking portion (3) arranged on the battery bracket (7); The second guide portion (2) comprises a second guide plate (201) pivoted on the battery bracket (7), and a first elastic member (202) abutting against the second guide plate (201); The first guide portion (1) is provided with a first guide plate (101) connected to the battery bracket (7); the first guide plate (101) and the second guide plate (201) are arranged opposite to each other and are surrounded by an inverted eight-shaped opening groove; when the battery box (6) moves downward, the second guide plate (201) pivots relative to the battery bracket (7), and the first elastic member (202) is compressed to store energy; The locking part (3) comprises a locking seat (301) connected to the battery bracket (7), a first driving part (302) connected to the locking seat (301), and a locking rod (303) connected to the power output end of the first driving part (302); The locking seat (301) is provided with a locking groove (3011) extending along the length direction of the battery bracket (7), the battery box (6) is provided with a guide rod (5) adapted to the locking groove (3011), and the first driving part (302) drives the locking rod (303) to abut against the guide rod (5) to limit the displacement of the battery box (6).

2. The battery box locking mechanism according to claim 1, characterized in that: A connecting seat (304) is provided at the power output end of the first driving part (302), a connecting rod (305) is pivotally connected between the connecting seat (304) and the locking rod (303), and rod end bearings are respectively provided at both ends of the connecting rod (305).

3. The battery box locking mechanism according to claim 2, characterized in that: The abutting end of the locking rod (303) and the guide rod (5) is provided with an abutting inclined surface (3031), and the abutting inclined surface (3031) is arranged to be inclined upward along the extending direction of the locking rod (303).

4. The battery box locking mechanism according to claim 3, characterized in that: The locking seat (301) is fixed on the battery bracket (7) via a mounting seat, and a plurality of pads (4) are provided between the mounting seat and the locking seat (301); The pad (4) is used to adjust the height of the locking seat (301).

5. The battery box locking mechanism according to claim 1, characterized in that: The locking mechanism further comprises a limiting portion (8) arranged on one side of the battery bracket (7), wherein the limiting portion (8) comprises a lug (801) arranged on the upper seat (9) of the electric converter, and a limiting pin (802) arranged on the lower seat (10) of the electric converter; The upper base (9) of the electric converter is connected to the battery box (6); The lug (801) is provided with a limiting hole (8011), and the lug (801) and the limiting pin (802) are arranged correspondingly up and down.

6. The battery box locking mechanism according to claim 1, characterized in that: The battery bracket (7) is also provided with a second driving part (803) located below the lower seat (10) of the power converter, and a driving component (804) provided at the power output end of the second driving part (803), and the lower seat (10) of the power converter is connected to the driving component (804).

7. The battery box locking mechanism according to claim 6, characterized in that: The driving assembly (804) comprises a bottom plate (8041) connected to the power output end of the second driving part (803), at least three sliding rods (8042) slidingly penetrating the bottom plate (8041), and the sliding rods (8042) are connected below the lower seat (10) of the converter; A second elastic member (8043) is sleeved on the outer side of the sliding rod (8042), and the second elastic member (8043) is arranged between the lower seat (10) of the power converter and the bottom plate (8041).

8. The battery box locking mechanism according to claim 7, characterized in that: A sleeve (8044) is further provided on the outside of the slide bar (8042), a through hole (80441) is provided in the sleeve (8044), and the diameter of the through hole (80441) is adapted to the diameter of the slide bar (8042); A circular hole (80442) for accommodating the second elastic member (8043) is also formed in the sleeve (8044), and the circular hole (80442) and the through hole (80441) form a coaxial stepped hole.

9. The battery box locking mechanism according to claim 8, characterized in that: The bottom plate (8041) is also provided with a limiting column (805), the height of the limiting column (805) is greater than the height of the sleeve (8044), and a plurality of the limiting columns (805) are arranged below the lower seat (10) of the converter.

10. A vehicle, characterized in that: The invention comprises the battery box locking mechanism according to any one of claims 1 to 9.

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