Battery quick-changing device and charging vehicle

Abstract

The utility model discloses a battery quick-changing device and a charging vehicle, and relates to the technical field of vehicles, the battery quick-changing device comprises a battery holder, a drawing assembly and a battery unlocking mechanism, the battery holder is used for installing a power battery; the drawing assembly is connected with a carriage and the battery holder and is used for enabling the power battery to have a working position and a battery changing position; the battery unlocking mechanism comprises a battery positioning piece, a battery matching piece and a battery locking piece, the battery positioning piece is fixed on the battery holder, the battery matching piece is arranged on the power battery, and the battery locking piece is used for restraining the relative movement trend between the battery positioning piece and the battery matching piece; according to the technical scheme provided by the utility model, the disassembly and assembly efficiency of the power battery can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a battery quick replacement device and a charging vehicle. Background Art

[0002] With the popularization of charging vehicles, as the core energy storage unit, the power battery cannot completely avoid the problem of vehicle breakdown caused by the depletion of the power battery. At this time, the quick replacement of the power battery is particularly important.

[0003] Generally, a power exchange device for fastening the power battery and the vehicle is provided between the power battery and the vehicle. However, the existing power exchange device has a complex structure, which is not conducive to the quick replacement of the power battery and is also not conducive to later maintenance. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a battery quick replacement device and a charging vehicle, aiming to improve the disassembly and assembly efficiency of the power battery.

[0005] To achieve the above purpose, the battery quick replacement device proposed by the utility model includes:

[0006] A battery seat for installing the power battery;

[0007] A drawing component, connecting the carriage and the battery seat, and used for enabling the power battery to have a working position and a replacement position; and

[0008] A battery unlocking mechanism, including a battery positioning member, a battery fitting member and a battery locking member, the battery positioning member is fixed on the battery seat, the battery fitting member is arranged on the power battery, and the battery locking member is used for restricting the relative movement tendency between the battery positioning member and the battery fitting member.

[0009] In an embodiment, the battery positioning member includes a positioning convex portion, and the battery fitting member is provided with a positioning hole matching with the positioning convex portion.

[0010] In an embodiment, the positioning convex portion is provided with an internal thread, the battery locking member includes a stud and a pressing portion, one end of the stud is connected with the pressing portion, and the other end passes through the internal thread, and the pressing portion is used for pressing the edge of the positioning hole;

[0011] And / or, the cross-sectional shape of the positioning convex portion is trapezoidal;

[0012] And / or, the positioning convex portion protrudes upward from the battery seat, and the positioning hole penetrates through the battery fitting member in the up and down direction.

[0013] In one embodiment, the pulling component includes a guide rail seat and a pulling seat. The guide rail seat is fixedly connected to the carriage, and the pulling seat is slidably connected within the guide rail seat and is fixed with the battery seat.

[0014] In one embodiment, the pulling component further includes a limiting member and a blocking member. The limiting member is fixed to one of the guide rail seat and the pulling seat, and the blocking member is fixed to the other one.

[0015] When the power battery is switched to the replacement position, the limiting member and the blocking member are in mutual abutment.

[0016] In one embodiment, at least one of the limiting member and the blocking member is an elastic member.

[0017] And / or, a plurality of rollers are respectively provided on opposite sides of the pulling seat, and the guide rail seat includes a guide rail that cooperates with the rollers.

[0018] In one embodiment, the pulling component further includes an auxiliary support member. The auxiliary support member is rotatably connected to the bottom of the pulling seat and has an auxiliary support state and a receiving state.

[0019] In the auxiliary support state, the power battery is in the replacement position, and the auxiliary support member is placed upright.

[0020] In the receiving state, the power battery is in the working position, and the auxiliary support member lies on the bottom of the pulling seat.

[0021] In one embodiment, an auxiliary wheel is connected to an end of the auxiliary support member away from the pulling seat. The auxiliary wheel is used to contact the ground when the auxiliary support member is in the auxiliary support state.

[0022] And / or, in the receiving state, the auxiliary support member is snap-connected to the front end of the pulling seat.

[0023] And / or, a receiving groove for receiving the auxiliary support member is provided at the bottom of the pulling seat.

[0024] In one embodiment, the pulling component further includes a pulling locking mechanism. The pulling locking mechanism is used to restrict the sliding of the pulling seat when the power battery is in the working position.

[0025] In one embodiment, the pulling locking mechanism includes a lock bumper and a lock tongue that are in snap-fit. The lock bumper is fixed to the bottom of the pulling seat, and the lock tongue is fixed to the guide rail seat.

[0026] In one embodiment, the battery quick replacement device further includes a first connector fixed to the rear end of the guide rail base and a second connector provided on the power battery. When the power battery is in the working position, the first connector and the second connector are plugged into each other.

[0027] The present utility model also provides a charging vehicle, which includes the battery quick replacement device as described above.

[0028] In the technical solution of the present utility model, the power battery and the battery seat are fixed by a battery unlocking mechanism. The battery unlocking mechanism includes a battery positioning member, a battery mating member, and a battery locking member. The battery positioning member is fixed to the battery seat, and the battery mating member is provided on the power battery. During the process of placing the power battery on the battery seat, the positioning cooperation between the battery positioning member and the battery mating member is used to limit the movement of the power battery on the battery seat. Furthermore, it is convenient for the battery locking member to lock the battery positioning member and the battery mating member together, realizing multi-directional limitation of the power battery. With the arrangement of the pulling and pushing assembly, the power battery can be quickly switched from the replacement position to the working position and accommodated in the carriage, extending the service life of the power battery.

[0029] Moreover, compared with the methods of using electric unlocking or using an elastic structure to assist unlocking to realize the disassembly of the power battery, in the present utility model, the unlocking cooperation of the battery positioning member, the battery mating member, and the battery locking member is adopted to complete the installation of the power battery. And when it is necessary to replace the power battery, only the battery locking member needs to be removed. Its structure is simple, the disassembly and assembly steps are few, and the time consumption is short, which helps to improve the disassembly and assembly efficiency of the power battery. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the battery quick replacement device provided by the present utility model;

[0032] Figure 2 It is Figure 1 a cross-sectional view of the battery unlocking mechanism in

[0033] Figure 3 It is Figure 1 a schematic structural diagram of the battery quick replacement device when switching the position of the power battery in

[0034] Figure 4 It is Figure 3Structural schematic diagram of the middle-draw locking mechanism from the first perspective;

[0035] Figure 5 For Figure 3 Structural schematic diagram of the middle-draw locking mechanism from the second perspective;

[0036] Figure 6 Is the top view of the battery quick replacement device.

[0037] Explanation of the reference numerals in the attached drawings:

[0038] 100. Battery quick replacement device; 10. Battery seat; 20. Draw component; 21. Guide rail seat; 211. Guide rail; 22. Draw seat; 23. Limiting member; 24. Blocking member; 25. Roller; 26. Auxiliary support member; 261. Auxiliary wheel; 27. Middle-draw locking mechanism; 271. Lock bump; 272. Lock tongue; 30. Battery unlocking mechanism; 31. Battery positioning member; 311. Positioning convex part; 32. Battery mating member; 321. Positioning hole; 33. Battery locking member; 331. Stud; 332. Pressing part; 40. First connector; 41. Connector bracket;

[0039] 200. Power battery.

[0040] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0042] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0044] With the popularization of charging vehicles, as the core energy storage unit, the power battery cannot completely avoid the problem of vehicle breakdown caused by the depletion of the power battery's power. At this time, the rapid replacement of the power battery is particularly important.

[0045] Generally, a power battery swapping device for fastening the power battery and the vehicle is provided between the power battery and the vehicle. However, the existing power battery swapping device has a complex structure, which is not conducive to the rapid replacement of the power battery and is also not conducive to later maintenance.

[0046] To solve this technical problem, the present utility model proposes a battery quick replacement device 100.

[0047] Please refer to Figures 1 to 6 , in an embodiment of the present utility model, the battery quick replacement device 100 includes a battery seat 10, a pulling and pushing assembly 20, and a battery unlocking mechanism 30. The battery seat 10 is used for installing the power battery 200; the pulling and pushing assembly 20 is connected to the carriage and the battery seat 10 and is used to make the power battery 200 have a working position and a replacement position; the battery unlocking mechanism 30 includes a battery positioning member 31, a battery mating member 32, and a battery locking member 33. The battery positioning member 31 is fixed to the battery seat 10, the battery mating member 32 is provided on the power battery 200, and the battery locking member 33 is used to restrict the relative movement tendency between the battery positioning member 31 and the battery mating member 32; so as to simplify the specific structure of the battery unlocking mechanism 30. At the same time, the disassembly and assembly steps are simplified, and further, the disassembly and assembly efficiency of the power battery 200 is effectively improved, and it is also convenient for later maintenance of the battery unlocking mechanism 30 and the power battery 200.

[0048] In the technical solution of the present utility model, the power battery 200 and the battery holder 10 are fixed by the battery unlocking mechanism 30. Among them, the battery unlocking mechanism 30 includes a battery positioning member 31, a battery mating member 32 and a battery locking member 33. The battery positioning member 31 is fixed to the battery holder 10, and the battery mating member 32 is arranged on the power battery 200. During the process of placing the power battery 200 on the battery holder 10, the positioning cooperation between the battery positioning member 31 and the battery mating member 32 is used to limit the movement of the power battery 200 on the battery holder 10. Furthermore, it is convenient for the battery locking member 33 to lock the battery positioning member 31 and the battery mating member 32 together, realizing multi-directional limitation of the power battery 200. With the setting of the pulling component 20, the power battery 200 can be quickly switched from the replacement position to the working position and is housed in the carriage, extending the service life of the power battery 200.

[0049] Moreover, compared with the methods of using electric unlocking or using an elastic structure to assist unlocking to realize the disassembly of the power battery 200, in the present utility model, the unlocking cooperation of the battery positioning member 31, the battery mating member 32 and the battery locking member 33 is adopted to complete the installation of the power battery 200. And when the power battery 200 needs to be replaced, only the battery locking member 33 needs to be removed. Its structure is simple, the disassembly and assembly steps are few, and the time consumption is short, which helps to improve the disassembly and assembly efficiency of the power battery 200.

[0050] It should be noted that when the power battery 200 is in the working position, the power battery 200 is housed in the carriage. When the power battery 200 is in the replacement position, the power battery 200 is placed outside the carriage. Furthermore, under the action of the pulling component 20, the power battery 200 can reciprocate inside and outside the carriage, and the power battery 200 can be replaced outside the carriage, which is convenient for realizing the quick disassembly of the power battery 200. Among them, the reciprocating direction of the movement of the power battery 200 can be along the length direction of the vehicle body or along the width direction of the vehicle body.

[0051] Specifically, the connection method between the battery positioning member 31 and the battery holder 10 includes but is not limited to screw connection, welding, and clamping; the connection method between the battery mating member 32 and the power battery 200 includes but is not limited to integral molding, welding, and clamping, ensuring the reliable connection between the power battery 200 and the battery holder 10.

[0052] Please refer to Figure 2In the embodiment of the utility model, the battery positioning member 31 includes a positioning protrusion 311, and the battery matching member 32 is provided with a positioning hole 321 matched with the positioning protrusion 311. The positioning hole 321 and the positioning protrusion 311 are mutually fitted to improve the convenience of positioning the power battery 200 on the battery holder 10. Then, the battery locking member 33 can lock at least one of the battery positioning member 31 and the battery matching member 32 to realize the mutual locking of the battery positioning member 31, the battery matching member 32 and the battery locking member 33, thereby completing the assembly of the power battery 200. However, the present design is not limited to this. In other embodiments, the battery positioning member 31 is provided with an installation groove for the battery matching member 32 to be inserted, and the battery locking member 33 clamps or penetrates the battery positioning member 31 and the battery matching member 32.

[0053] Specifically, in the embodiment of the present utility model, the positioning protrusion 311 is provided with an internal thread, and the battery locking member 33 includes a stud 331 and a pressing portion 332, one end of the stud 331 is connected to the pressing portion 332, and the other end is penetrated by the internal thread, and the pressing portion 332 is used to press the edge of the positioning hole 321; in this way, the connection between the positioning protrusion 311 and the battery locking member 33 is realized by the internal thread and the external thread on the stud 331, and at the same time, the pressing portion 332 presses the edge of the positioning hole 321 and the stud 331 is relatively fixed to the positioning protrusion 311, which helps to further limit the separation of the battery mating member 32, improve the reliability of the mutual locking of the battery positioning member 31, the battery mating member 32 and the battery locking member 33, and thus effectively ensure the safe use of the power battery 200. However, the present design is not limited thereto. In other embodiments, the battery locking member 33 includes a buckle provided on the battery holder 10 or the connecting portion of the battery positioning member 31 , and the buckle is engaged with the battery positioning member 31 .

[0054] Specifically, in the embodiment of the utility model, the cross-sectional shape of the positioning protrusion 311 is a trapezoid; at this time, the cross-sectional shape of the positioning hole 321 is a trapezoid that matches the positioning protrusion 311. This arrangement is convenient for restricting the further movement of the battery mating piece 32, reducing the risk of interference between the power battery 200 and the battery holder 10, and improving the assembly reliability of the power battery 200. However, the present design is not limited to this. In other embodiments, the positioning protrusion 311 is provided with a limiting ring protrusion that blocks the battery mating piece 32.

[0055] Specifically, in the embodiment of the present utility model, the positioning convex portion 311 protrudes upward from the battery seat 10, and the positioning hole 321 penetrates through the battery fitting 32 in the up-down direction. With such a setting, when the power battery 200 is switched to the replacement position for disassembly, after removing the battery locking member 33, the power battery 200 can move in the up-down direction to disengage from the positioning convex portion 311, realizing the hoisting of the power battery 200, which is applicable to the disassembly and assembly of large-capacity batteries and improves the disassembly and assembly efficiency. Among them, when the cross-sectional shape of the positioning convex portion 311 is trapezoidal, the aperture of the positioning hole 321 gradually decreases from bottom to top, which can limit the movement of the battery fitting 32 on the positioning convex portion 311 to a certain extent.

[0056] Please refer to Figure 1 and Figure 3 , in the embodiment of the present utility model, the pulling component 20 includes a guide rail seat 21 and a pulling seat 22. The guide rail seat 21 is fixedly connected to the carriage, the pulling seat 22 is slidably connected within the guide rail seat 21, and the battery seat 10 is fixed thereon. The battery seat 10 is located above the pulling seat 22, and the power battery 200 is located above the battery seat 10, so as to realize the reliable switching of the power battery 200 between the working position and the replacement position and its rapid replacement. Among them, the connection method between the battery seat 10 and the pulling seat 22 includes but is not limited to welding and clamping, as long as the synchronous movement of the battery seat 10 and the pulling seat 22 is ensured. Both the battery seat 10 and the pulling seat 22 can be assembled by multiple beam bodies to reduce the overall weight of the battery quick replacement device 100.

[0057] Please refer to Figure 1 and Figure 3 , in the embodiment of the present utility model, the pulling component 20 further includes a limiting member 23 and a blocking member 24. The limiting member 23 is fixed to one of the guide rail seat 21 and the pulling seat 22, and the blocking member 24 is fixed to the other. When the power battery 200 is switched to the replacement position, the limiting member 23 and the blocking member 24 are in mutual contact. Taking the limiting member 23 being located on the pulling seat 22 and the blocking member 24 being located on the guide rail seat 21 as an example, the limiting member 23 protrudes from the side of the pulling seat 22, and the blocking member 24 is located on the sliding path of the limiting member 23. Furthermore, when the pulling seat 22 drives the power battery 200 to slide to the replacement position, the blocking member 24 blocks the movement of the limiting member 23 and they are in mutual contact, which can effectively reduce the risk of the pulling seat 22 disengaging from the guide rail seat 21 when the pulling seat 22 is pulled out and improve the pulling safety.

[0058] Specifically, in an embodiment of the present utility model, at least one of the limiting member 23 and the blocking member 24 is an elastic member; thereby reducing the impact force during the contact between the limiting member 23 and the blocking member 24, reducing the risk of structural damage, and extending the service life. Among them, on the basis of ensuring the blocking cooperation between the limiting member 23 and the blocking member 24, the limiting member 23 and / or the blocking member 24 can be configured as an elastic member, and the material of the elastic member can be an elastic material such as rubber or silica gel; the limiting member 23 and / or the blocking member 24 can be fixed to the pulling assembly 20 through corresponding brackets.

[0059] Please refer to Figure 3 , in an embodiment of the present utility model, a plurality of rollers 25 are respectively provided on opposite sides of the pulling seat 22, and the guide rail seat 21 includes guide rails 211 that cooperate with the rollers 25. There are two guide rails 211, which are respectively provided on opposite sides of the pulling seat 22. Furthermore, when the pulling seat 22 is pulled, the rollers 25 roll inside the guide rails 211 to realize the linear sliding movement of the pulling seat 22.

[0060] Please refer to Figure 3 , in an embodiment of the present utility model, the pulling assembly 20 further includes an auxiliary support member 26, which is rotatably connected to the bottom of the pulling seat 22 and has an auxiliary support state and a storage state; in the auxiliary support state, the power battery 200 is in the replacement position, and the auxiliary support member 26 is placed upright; at this time, the auxiliary support member 26 is vertically downward and supports the bottom of the pulling seat 22, dispersing the force on the pulling seat 22, avoiding the suspension caused by the pulling seat 22 being pulled out of the guide rail seat 21 and affecting the stable sliding of the pulling seat 22, improving the pulling reliability and stability of the pulling seat 22, and also facilitating ensuring the stability of the battery seat 10 when replacing the power battery 200 and improving the disassembly and assembly efficiency of the power battery 200.

[0061] In the storage state, the power battery 200 is in the working position, and the auxiliary support member 26 lies on the bottom of the pulling seat 22, that is, it can be attached to the bottom of the pulling seat 22, thereby reducing the influence of the auxiliary support member 26 on the operation of accommodating the power battery 200 in the carriage.

[0062] Specifically, in an embodiment of the present utility model, an auxiliary wheel 261 is connected to one end of the auxiliary support member 26 away from the pulling seat 22, and the auxiliary wheel 261 is used to contact the ground when the auxiliary support member 26 is in the auxiliary support state; furthermore, when the power battery 200 is switched to the replacement position, the auxiliary support member 26 slides with the sliding of the pulling seat 22, and due to the rolling contact between the auxiliary wheel 261 and the ground, it can not only ensure the support of the auxiliary support member 26 for the pulling seat 22, but also reduce the resistance between the auxiliary support member 26 and the ground, improving the pulling smoothness of the pulling seat 22. The ground specifically refers to the ground where the vehicle is located.

[0063] Specifically, in the embodiment of the present utility model, in the storage state, the auxiliary support member 26 is clamped to the front end of the drawer seat 22; it can be understood that this front end is the side facing the outside of the vehicle. Among them, one end of the auxiliary support member 26 is rotatably connected to the drawer seat 22, and the other end is clamped to the socket at the front end of the drawer seat 22 in the storage state. The clamping object can be the auxiliary wheel 261 or the auxiliary support member 26 itself. On the basis of not affecting the relative movement between the drawer seat 22 and the guide rail seat 21, it is convenient for the quick storage of the auxiliary support member 26. However, this design is not limited thereto. In other embodiments, the auxiliary support member 26 can be telescopically arranged.

[0064] Specifically, in the embodiment of the present utility model, a storage groove for storing the auxiliary support member 26 is provided at the bottom of the drawer seat 22. Further, the auxiliary support member 26 is hidden in the storage groove in the storage state. At this time, the corresponding socket can be arranged on the bottom wall of the storage groove, or the socket adapted to the auxiliary support member 26 is formed by the side wall of the storage groove.

[0065] Please refer to Figures 3 to 5 , in the embodiment of the present utility model, the drawer assembly 20 further includes a drawer locking mechanism 27. The drawer locking mechanism 27 is used to restrict the sliding of the drawer seat 22 when the power battery 200 is in the working position, so as to reliably ensure the stability of the drawer seat 22 when the power battery 200 is working.

[0066] Specifically, in the embodiment of the present utility model, the drawer locking mechanism 27 includes a locking bump 271 and a locking tongue 272 that are in clamping cooperation. The locking bump 271 is fixed to the bottom of the drawer seat 22, and the locking tongue 272 is fixed to the guide rail seat 21. Specifically, the locking bump 271 is arranged at the front end of the drawer seat 22 to gradually approach the locking tongue 272 on the guide rail seat 21 during the process of the power battery 200 switching to the working position, and engage with the locking tongue 272 to achieve the effect of locking the drawer seat 22, reducing the risk of the drawer seat 22 further sliding and colliding with the rear end of the guide rail seat 21 or colliding with the carriage. Of course, in other embodiments, the locking tongue 272 can also be fixed on the carriage; the drawer locking mechanism 27 is configured as a push-type elastic locking mechanism.

[0067] Please refer to Figure 1 and Figure 6, in an embodiment of the present utility model, the battery quick replacement device 100 further includes a first connector 40 fixed to the rear end of the guide rail base 21 and a second connector provided on the power battery 200; when the power battery 200 is in the working position, the first connector 40 and the second connector are plugged into each other; wherein, the first connector 40 can be fixed to the rear end of the guide rail base 21 through a connector bracket 41, and the second connector can be provided inside the power battery 200. At this time, there is an opening at the rear end of the power battery 200, and the first connector 40 can be inserted into the second connector through the opening. Of course, the second connector can also protrude from the rear end of the power battery 200.

[0068] When the power battery 200 is switched from the replacement position to the working position, the power battery 200 moves closer to the rear end of the guide rail base 21 as the pulling seat 22 moves, and the first connector 40 and the second connector are plugged into each other when in the working position; when the power battery 200 is switched from the working position to the replacement position, the power battery 200 moves away from the rear end of the guide rail base 21 as the pulling seat 22 moves. During this process, the first connector 40 and the second connector are disengaged from each other to facilitate the subsequent removal of the power battery 200.

[0069] The present utility model also proposes a charging vehicle, which includes a battery quick replacement device 100. The specific structure of the battery quick replacement device 100 refers to the above embodiments. Since this charging vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0070] Optionally, the charging vehicle can be specifically configured as a van-type charging vehicle with a large-capacity power supply by itself. The power battery 200 is installed in the carriage, which can avoid the exposure of the high-voltage components of the battery to sunlight or rain, effectively extend the service life of the power battery 200, and also avoid the safety hazard of electric leakage due to rain, improving the use safety of the power battery 200.

[0071] The battery replacement operation on the charging vehicle is specifically as follows: Pull the pulling seat 22 to slide along the guide rail base 21, so that the first connector 40 and the second connector are disengaged from each other, and the power battery 200 is switched from the working position to the replacement position;

[0072] During the process of switching to the replacement position, the auxiliary support member 26 disengages from the collar on the pulling seat 22 and is in the auxiliary support state, and moves along with the movement of the pulling seat 22;

[0073] When the power battery 200 is in the replacement position, release the locking of the battery locking member 33 on the battery positioning member 31 and the battery mating member 32. For example, unscrew the threaded connection between the stud 331 and the positioning protrusion 311, and then the power battery 200 can be removed, and a new power battery 200 can be replaced and fixed.

[0074] The above are only exemplary embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A battery quick-change device, characterized in that: include: Battery holder, used to install the power battery; A pull-out assembly connects the carriage and the battery holder and is used to enable the power battery to have a working position and a potential change position; as well as The battery unlocking mechanism comprises a battery positioning member, a battery matching member and a battery locking member, wherein the battery positioning member is fixed to the battery seat, the battery matching member is arranged on the power battery, and the battery locking member is used to restrict the relative movement tendency between the battery positioning member and the battery matching member.

2. The battery quick-change device according to claim 1, characterized in that: The battery positioning member comprises a positioning protrusion, and the battery matching member is provided with a positioning hole matched with the positioning protrusion.

3. The battery quick-change device according to claim 2, characterized in that: The positioning protrusion is provided with an internal thread, and the battery locking member includes a stud and a pressing portion, one end of the stud is connected to the pressing portion, and the other end is passed through the internal thread, and the pressing portion is used to press the edge of the positioning hole; And / or, the cross-sectional shape of the positioning protrusion is a trapezoid; And / or, the positioning protrusion is protruded from bottom to top on the battery seat, and the positioning hole passes through the battery matching piece in the up-down direction.

4. The battery quick-change device according to claim 1, characterized in that: The drawer assembly comprises a guide rail seat and a drawer seat, wherein the guide rail seat is fixedly connected to the carriage, and the drawer seat is slidably connected in the guide rail seat and is fixed with the battery seat.

5. The battery quick-change device according to claim 4, characterized in that: The drawer assembly further includes a limiter and a stopper, wherein the limiter is fixed to one of the guide rail seat and the drawer seat, and the stopper is fixed to the other one; When the power battery is switched to the potential change position, the limiting member and the blocking member abut against each other.

6. The battery quick-change device according to claim 5, characterized in that: At least one of the limiting member and the blocking member is an elastic member; And / or, a plurality of rollers are respectively provided on two opposite sides of the pull-out seat, and the guide rail seat includes a guide rail matched with the rollers.

7. The battery quick-change device according to claim 4, characterized in that: The drawer assembly further includes an auxiliary support member, which is rotatably connected to the bottom of the drawer seat and has an auxiliary support state and a receiving state; In the auxiliary support state, the power battery is in potential change, and the auxiliary support member is placed upright; In the receiving state, the power battery is in the working position, and the auxiliary support member lies on the bottom of the pull-out seat.

8. The battery quick-change device according to claim 7, characterized in that: An auxiliary wheel is connected to one end of the auxiliary support member away from the pull-out seat, and the auxiliary wheel is used to contact the ground when the auxiliary support member is in an auxiliary support state; And / or, in the receiving state, the auxiliary support member is engaged with the front end of the drawer seat; And / or, a receiving groove for receiving the auxiliary support member is provided at the bottom of the pull-out seat.

9. The battery quick-change device according to claim 4, characterized in that: The pull-out assembly further includes a pull-out locking mechanism, which is used to restrict the sliding of the pull-out seat when the power battery is located in the working position.

10. The battery quick-change device according to claim 9, characterized in that: The pull-out locking mechanism comprises a lock bump and a lock tongue that are snap-fitted together, the lock bump is fixed to the bottom of the pull-out seat, and the lock tongue is fixed to the guide rail seat.

11. The battery quick-change device according to claim 4, characterized in that: The battery quick-change device also includes a first connector fixed to the rear end of the guide rail seat, and a second connector provided on the power battery; when the power battery is in the working position, the first connector and the second connector are plugged into each other.

12. A charging vehicle, characterized in that: It comprises a battery quick-change device as claimed in any one of claims 1 to 11.

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