Head end battery locking mechanism and battery replacement electric automobile

Abstract

The utility model provides a head end battery locking mechanism and a battery changing electric automobile, the head end battery locking mechanism comprises a locking assembly, a driving assembly and a cam, the locking assembly comprises a fixed seat, an elastic part, a locking push plate, a locking block and an electric connector, and the locking block and the electric connector are installed on the locking push plate; the driving assembly comprises a driving part and a rotating shaft; the cam is installed on the rotating shaft and abuts against the locking push plate so as to drive the locking push plate to slide towards the side where the battery is located till the locking block abuts against the battery to achieve locking. When the locking block locks the battery, the electric connector on the locking push plate is connected with the electric connector on the battery in an inserted mode. According to the utility model, the locking reliability can be improved; and when the battery is locked by the locking block, the electric connector on the locking push plate is connected with the electric connector on the battery in an inserted mode, the locking and electric connection effects on the battery at the head end are integrated, the structure is compact, and the occupied space is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle manufacturing, in particular to a structural improvement of a battery locking mechanism and a battery-swap electric vehicle equipped with the battery locking mechanism. Background Art

[0002] For battery-swap electric vehicles that are charged in battery-swap mode, a battery locking mechanism is generally provided on the chassis battery compartment to position the battery in place, ensuring that the battery is firmly placed in the battery compartment and the electrical connection is reliable.

[0003] There are usually multiple batteries in the battery compartment, and the locking reliability and electrical connection reliability of the first battery to enter the battery compartment will inevitably affect the locking reliability and electrical connection reliability of subsequent batteries. Therefore, the locking reliability and electrical connection reliability of the first battery to enter the compartment are particularly important.

[0004] In the prior art, for the first battery to enter the compartment (called the first-end battery), it is usually locked and electrically connected by plugging the electrical connector on the front end surface of the battery with the electrical connector on the inner wall of the corresponding end plate of the battery compartment. With this battery locking method, the first battery to enter the compartment and the corresponding end plate of the battery compartment need to be squeezed and locked against each other, which has poor reliability. When the vehicle bumps, the battery bumps with it, which may cause the locking to fail and crack, which may lead to poor contact or even damage of the electrical connector between the battery and the battery compartment. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the utility model provides a first-end battery locking mechanism and a battery-swap electric vehicle, which are used to lock and unlock the first battery entering the warehouse, greatly improving the reliability of battery electrical connection, and has a compact structure and occupies little space.

[0006] In order to achieve the above technical effects, the technical solution of the first-end battery locking mechanism proposed by the utility model is a first-end battery locking mechanism, which is used to lock or unlock the first-end battery in the battery compartment, and is characterized by comprising:

[0007] A locking assembly, comprising a fixing seat, an elastic component, a locking thrust plate slidably mounted on the fixing seat, a locking block and an electrical connector mounted on the locking thrust plate, wherein the sliding direction of the locking thrust plate is parallel to the direction in which the battery enters and exits the compartment; the elastic component is used to apply a restoring elastic force to the locking thrust plate;

[0008] A driving assembly, comprising a driving component and a rotating shaft driven by the driving component to rotate;

[0009] A cam is mounted on the rotating shaft to rotate coaxially with the rotating shaft, the cam abuts against the locking thrust plate to drive the locking thrust plate to slide toward the side where the battery is located until the locking block abuts against the battery to achieve locking;

[0010] When the locking block locks the battery, the electrical connector on the locking push plate is plugged into the electrical connector on the battery.

[0011] In some embodiments of the present invention, the electrical connector of the battery is arranged on the front end plate and the rear end plate of the battery, and the electrical connector on the locking push plate is plugged into the electrical connector on the front end plate of the battery; the locking block is located at the front end corner of the battery, and an L-shaped locking portion is formed on the locking block, and the side A of the L-shaped locking portion is in contact with the front end plate of the battery, and the side B of the L-shaped locking portion is in contact with the left side plate or the right side plate of the battery, and the side A intersects with the side B perpendicularly to form an L shape.

[0012] In some embodiments of the present invention, an inclined guide surface inclined outward is formed on the free end of the side surface B.

[0013] In some embodiments of the present invention, the locking block includes a rigid member and an elastic member that are fixedly connected as one, the L-shaped locking portion is formed on the elastic member, and the rigid member is fixedly connected to the locking thrust plate.

[0014] In some embodiments of the present invention, there are two locking blocks, which are arranged on the locking thrust plate at intervals in the lateral direction, and the electrical connector on the locking thrust plate is located between the two locking blocks.

[0015] In some embodiments of the present invention, the locking thrust plate extends in a transverse direction, the two locking blocks are respectively located at two ends of the locking thrust plate, and the electrical connector on the locking thrust plate is located at the center of the locking thrust plate.

[0016] In some embodiments of the utility model, the rotating shaft extends in a transverse direction, and the cams are arranged at least two locations on the rotating shaft at intervals along the extending direction thereof.

[0017] In some embodiments of the present invention, the fixing seat and the locking thrust plate are provided with mutually cooperating sliding guide structures for guiding the sliding of the locking thrust plate.

[0018] In some embodiments of the present invention, the sliding guide structure includes a guide column formed on the locking thrust plate and a guide hole formed in the fixing seat, the extension direction of the guide column is parallel to the sliding direction of the locking thrust plate, and the free end of the guide column and the locking thrust plate are respectively located on both sides of the fixing seat;

[0019] The elastic component is arranged between the free end of the guide column and the fixing seat, or between the fixing seat and the locking thrust plate.

[0020] In some embodiments of the utility model, a battery-swap electric vehicle is also proposed, comprising a battery compartment and a first-end battery locking mechanism arranged on the battery compartment, wherein the first-end battery locking mechanism is the above-mentioned first-end battery locking mechanism.

[0021] Compared with the prior art, the utility model has the following advantages and positive effects:

[0022] The first-end battery locking mechanism of the utility model drives the rotating shaft to rotate through the driving component and then drives the cam to rotate, so as to drive the locking push plate to slide toward the side where the battery is located until the locking block abuts against the battery to achieve locking. Compared with the prior art in which locking is achieved only by plugging in an electrical connector, the locking reliability is greatly improved; and when the locking block locks the battery, the electrical connector on the locking push plate is plugged in with the electrical connector on the battery, ensuring the electrical connection of the first battery entering the battery compartment. The first-end battery locking mechanism of the utility model can integrate the locking and electrical connection functions of the first battery entering the compartment, and has a compact structure and occupies little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a structural schematic diagram of a battery compartment from one perspective in an embodiment of the utility model;

[0025] Figure 2 This is a structural schematic diagram of the battery compartment from another perspective in an embodiment of the utility model;

[0026] Figure 3 for Figure 1 A magnified view of part A;

[0027] Figure 4 for Figure 2 A magnified view of part B;

[0028] Figure 5 It is a schematic diagram of the cooperation structure between the head-end battery locking mechanism and the head-end battery in the locked state in the embodiment of the utility model;

[0029] Figure 6 This is a structural schematic diagram of the first-end battery locking mechanism in an embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the first-end battery locking mechanism in the embodiment of the utility model after omitting the rotating shaft and the cam;

[0031] Figure 8 It is a structural schematic diagram of a locking block from one perspective in an embodiment of the utility model;

[0032] Fig. 9 This is a schematic structural diagram of the locking block from another perspective in an embodiment of the utility model.

[0033] Reference numerals:

[0034] 1. First-end battery locking mechanism; 100. Locking assembly; 110. Fixed seat; 120. Elastic component; 130. Locking push plate; 140. Locking block; 141. L-shaped locking portion; 142. Side A; 143. Side B; 144. Inclined guide surface; 145. Rigid member; 146. Elastic member; 150. First electrical connector; 160. Guide column; 170. Limit baffle; 200. Driving assembly; 210. Driving component; 220. Rotating shaft; 230. Fixed support; 240. Connecting rod; 300. Cam;

[0035] 2. Battery compartment; 21. Battery import and export;

[0036] 3. First end battery; 31. Second electrical connector; 32. Locking groove;

[0037] 4. Intermediate battery;

[0038] 5. Terminal battery. DETAILED DESCRIPTION

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] In some embodiments of the present invention, a battery-swap electric vehicle is proposed, which includes a vehicle body, a battery compartment 2, a battery 3, a battery drive device, a battery locking mechanism, etc. The battery compartment 2 is arranged on the vehicle chassis. Figure 1 and Figure 2The battery is placed in the battery compartment 2, and the battery driving device is used to drive the battery in and out of the battery compartment 2. The existing technology can be used, which is not shown in the figure; the battery locking mechanism is used to lock the battery after the battery enters the battery compartment 2 and unlock the battery when the battery leaves the battery compartment 2.

[0042] Figure 1 and Figure 2 In the figure, the direction indicated by arrow I is the direction of battery entry, and the direction indicated by arrow II is the direction of battery exit, that is, the direction of battery entry and exit is parallel to the longitudinal direction of the battery, which is called the battery entry and exit along the longitudinal direction. The battery compartment 2 is roughly rectangular, and its longitudinal direction is consistent with the longitudinal direction of the battery. Based on the direction of battery entry, the front end of the battery compartment 2, that is, the head end, is closed, and the rear end of the battery compartment 2, that is, the end, is open, forming a battery inlet and outlet. The battery inlet and outlet are equipped with an openable and closable compartment door (not shown in the figure). During the process of battery entry and exit, the compartment door is opened, and after all batteries are in place, the compartment door is closed to close the rear end of the battery compartment 2, thereby protecting the battery.

[0043] When there are multiple batteries, such as Figure 1 and Figure 2 The three batteries shown in the figure are connected end to end in sequence along the longitudinal direction, namely the first end battery 3 entering the battery compartment 2 first, the middle battery 4 entering the battery compartment 2 in the middle, and the end battery 5 entering the battery compartment 2 last. The battery locking mechanism includes a first end battery locking mechanism 1 for locking and unlocking the first end battery 3, a middle battery locking mechanism for locking and unlocking the middle battery 4, and a end battery locking mechanism for locking and unlocking the end battery 5. The utility model is mainly aimed at the structural improvement of the first end battery locking mechanism 1. The battery locking mechanism described in some embodiments of the utility model is specifically the first end battery locking mechanism 1 for locking and unlocking the first end battery 3.

[0044] Reference Figures 3 to 9 , while combining Figure 1 and Figure 2 The first-end battery locking mechanism 1 is used to lock and unlock the first-end battery 3 in the battery compartment 2. It is arranged at the front end of the battery compartment 2 (that is, the closed end of the battery compartment 2) and includes a locking assembly 100, a driving assembly 200 and a cam 300.

[0045] Among them, the locking assembly 100 includes a fixed base 110, an elastic component 120, a locking thrust plate 130 slidably mounted on the fixed base 110, a locking block 140 and an electrical connector mounted on the locking thrust plate 130, and the sliding direction of the locking thrust plate 130 is parallel to the direction of the first-end battery 3 entering and exiting the compartment; the elastic component 120 is used to apply a reset elastic force to the locking thrust plate 130, and when the locking thrust plate 130 slides, the elastic component 120 simultaneously generates elastic deformation, such as compression or stretching, so that the elastic component 120 stores energy.

[0046] The driving assembly 200 includes a driving component 210 and a rotating shaft 220 driven to rotate by the driving component 210 .

[0047] The cam 300 is mounted on the rotating shaft 220 so as to coaxially rotate with the rotating shaft 220 when the rotating shaft 220 rotates. The cam 300 abuts against the locking thrust plate 130, specifically, the tip of the cam 300 abuts against the locking thrust plate 130, so that when the cam 300 rotates, the locking thrust plate 130 is synchronously driven to slide toward the side where the head-end battery 3 is located until the locking block 140 abuts against the head-end battery 3 to achieve locking. When the cam 300 rotates until its tip is separated from the locking thrust plate 130, the stored energy of the elastic component 120 drives the locking thrust plate 130 to reset to achieve unlocking.

[0048] When the locking block 140 locks the first-end battery 3, the electrical connector on the locking thrust plate 130 is plugged into the electrical connector on the first-end battery 3 to achieve electrical connection to supply power to the electrical components of the battery-swap electric vehicle.

[0049] For the sake of distinction, the electrical connector on the locking thrust plate 130 is referred to as the first electrical connector 150 , and the electrical connector on the first-end battery 3 is referred to as the second electrical connector 31 .

[0050] The battery locking mechanism in the embodiment of the utility model drives the rotating shaft 220 to rotate through the driving component 210 and then drives the cam 300 to rotate, so as to drive the locking push plate 130 to slide to the side where the head-end battery 3 is located until the locking block 140 abuts against the head-end battery 3 to achieve locking. Compared with the prior art that only locks the head-end battery 3 by plugging in the electrical connector, the locking reliability is greatly improved; and when the locking block 140 locks the head-end battery 3, the first electrical connector 150 on the locking push plate 130 is plugged in with the second electrical connector 31 on the head-end battery 3, which smoothly ensures the electrical connection of the head-end battery 3. The battery locking mechanism of the utility model can not only effectively lock the head-end battery 3, but also integrate the locking and electrical connection into one, so that the head-end battery locking mechanism 1 has a compact structure and occupies a small space, and is suitable for the narrow space at the front end of the battery compartment 2.

[0051] In some embodiments of the utility model, the first end battery 3 adopts a prior art battery pack, whose outer contour is roughly rectangular, and a second electrical connector 31 is respectively provided on the front end plate and the rear end plate of the first end battery 3, wherein one second electrical connector 31 is a plug, and the other second electrical connector 31 is a socket, and the plug and the socket are connected through the circuit inside the battery. The first electrical connector 150 on the locking thrust plate 130 is plugged into the second electrical connector 31 on the front end plate of the first end battery 3.

[0052] Accordingly, if Figures 3 to 9As shown, the locking block 140 is located at the front edge of the first end battery 3 (i.e., the intersection angle between the front end plate of the battery and the left and right side plates of the battery), and an L-shaped locking portion 141 is formed on the locking block 140. In the locked state, the L-shaped locking portion 141 is pressed against the front edge of the first end battery 3.

[0053] The L-shaped locking portion 141 is specifically an L-shaped notch, including a side surface A142 and a side surface B143 that intersect vertically to form an L-shape. In the locked state, the side surface A142 abuts against the front end plate of the head end battery 3, and the side surface B143 of the L-shaped locking portion 141 abuts against the left side plate or the right side plate of the head end battery 3. Figure 3 and Figure 4 As shown, the freedom of the first-end battery 3 to move forward can be restricted, and the freedom of the first-end battery 3 to move leftward or rightward can be restricted at the same time, thereby improving the locking reliability of the first-end battery 3.

[0054] In some embodiments of the present invention, if a longitudinally extending locking groove 32 is formed on the left and right side plates of the head-end battery 3 that abuts against the side B143 of the L-shaped locking portion 141, the portion where the side B143 of the locking block 140 is located is adapted to be embedded in the locking groove 32, such as Figure 3 and Figure 5 As shown, the locking block 140 can also limit the freedom of movement of the head-end battery 3 in the up-and-down directions, further improving the locking reliability of the head-end battery 3 .

[0055] like Figures 5 to 9 As shown, an outwardly inclined guide surface 144 is formed on the free end of the side surface B143 of the locking portion, so that the locking block 140 can move backward from the front end of the left and right side plates of the first-end battery 3 to the side surface A142 of the locking portion along with the sliding of the locking thrust plate 130, and abut against the front end plate of the first-end battery 3, and the side surface B143 abuts against the left side plate or the right side plate of the first-end battery 3.

[0056] In some embodiments of the present invention, the locking block 140 includes a rigid member 145 and an elastic member 146 that are fixedly connected as one body, an L-shaped locking portion 141 is formed on the elastic member 146, and the rigid member 145 is fixedly connected to the locking thrust plate 130. The rigid member 145 can be made of metal or high-strength plastic to ensure the structural strength of the locking block 140; and the L-shaped locking portion 141 is to directly contact the head-end battery 3, so it is formed on the elastic member 146 to reduce wear and damage to the battery, and the elastic member 146 can be made of rubber or other materials with a certain degree of elasticity.

[0057] The rigid member 145 and the locking thrust plate 130 may be connected by screws or welded, and the rigid member 145 and the elastic member 146 may be connected by screws or bonded as a whole.

[0058] like Figures 3 to 6 As shown, in some embodiments of the present invention, there are two locking blocks 140, which are arranged on the locking thrust plate 130 at intervals in the transverse direction, and the first electrical connector 150 on the locking thrust plate 130 is located between the two locking blocks 140, and the two locking blocks 140 are symmetrically arranged. That is, a locking block 140 is respectively arranged on the left and right sides of the front end plate of the head end battery 3, and the battery is clamped and locked from the left and right ends of the front end plate of the head end battery 3 to further improve the locking reliability.

[0059] Of course, the locking block 140 can also be set only on one of the left and right sides of the front end plate of the first-end battery 3, and the other opposite side can be stopped by the corresponding side plate of the battery compartment 2, and the first-end battery 3 is locked together by the locking block 140 on one side and the side plate of the battery compartment 2; in order to improve the locking reliability, a positioning protrusion can also be set on the first-end battery 3, and a corresponding positioning groove is set on the battery compartment 2. After the positioning protrusion is aligned with the positioning groove, the first-end battery 3 is squeezed by the locking block 140 on one side, and combined with the stopping effect of the side plate of the battery compartment 2, the first-end battery 3 is locked together.

[0060] Furthermore, the locking thrust plate 130 extends laterally, the two locking blocks 140 are respectively located at both ends of the locking thrust plate 130, and the first electrical connector 150 on the locking thrust plate 130 is located at the center of the locking thrust plate 130 to improve the uniformity of the locking force applied to the first-end battery 3.

[0061] Similarly, the rotating shaft 220 extends in the transverse direction, that is, the extending direction is the same as that of the locking thrust plate 130, and the cam 300 is arranged at least two places on the rotating shaft 220 along its extending direction to apply thrust evenly at as many points as possible along the length direction of the locking thrust plate 130, so that the locking thrust plate 130 slides smoothly and stably, ensuring reliable locking and alignment of the first electrical connector 150 and the second electrical connector 31.

[0062] Specifically, a plurality of fixed supports 230 are fixedly provided in the battery compartment 2 along the extension direction of the rotating shaft 220 . The rotating shaft 220 is inserted into the fixed supports 230 , and bearings are provided between the fixed supports 230 to ensure smooth rotation of the rotating shaft 220 .

[0063] In some embodiments of the utility model, the fixed seat 110 and the locking thrust plate 130 are provided with mutually cooperating sliding guide structures for guiding the sliding of the locking thrust plate 130 to make its sliding movement smooth, thereby ensuring that the locking block 140 thereon reliably locks the first-end battery 3, and the first electrical connector 150 thereon is aligned and plugged with the second electrical connector 31 of the first-end battery 3.

[0064] At the same time, by setting the sliding guide structure, it can also play a certain supporting role on the locking thrust plate 130, preventing the locking thrust plate 130 from being deformed by gravity due to its large horizontal length. The sliding guide structure is a guide post guide hole structure, and of course it can also be a slider guide rail structure.

[0065] As a specific implementation method, Figure 7 As shown, the sliding guide structure is a guide post guide hole structure, the guide post 160 is formed on the locking thrust plate 130, the guide hole is formed on the fixing seat 110, the extension direction of the guide post 160 is parallel to the sliding direction of the locking thrust plate 130, the guide post 160 passes through the guide hole, and the free end of the guide post 160 and the locking thrust plate 130 are respectively located on both sides of the fixing seat 110. The elastic component 120 is a spring, which is sleeved on the guide post 160, and a limited baffle 170 is formed on the free end of the guide post 160. The spring clip is arranged between the limited baffle 170 and the fixing seat 110. When the locking thrust plate 130 slides to the side where the head end battery 3 is located under the push of the cam 300 to achieve locking, the spring is compressed and stored; when the cam 300 is separated from the locking thrust plate 130, the elastic force of the spring drives the locking thrust plate 130 to reset to achieve unlocking.

[0066] Alternatively, the elastic component 120, i.e., the spring, can be arranged on the guide column 160 between the locking thrust plate 130 and the fixing seat 110, with one end thereof connected to the fixing seat 110 and the other end connected to the locking thrust plate 130. When the locking thrust plate 130 slides toward the side where the head end battery 3 is located under the push of the cam 300 to achieve locking, the spring is stretched and stores energy; when the cam 300 disengages from the locking thrust plate 130, the elastic force of the spring drives the locking thrust plate 130 to reset, thereby achieving unlocking.

[0067] In addition to the spring, the elastic component 120 may also be an elastic sleeve, a torsion spring or an elastic block, etc., without specific limitation.

[0068] For the driving component 210, Figures 3 to 7 As shown, in this embodiment, it is an electric cylinder, but it can also be a gas cylinder, a hydraulic cylinder, etc., and its piston rod is connected to the rotating shaft 220 through a connecting rod 240, one end of the connecting rod 240 is hinged to the output end of the piston rod, and the other end is hinged to the rotating shaft 220. When the driving component 210 moves, the piston rod is extended and retracted, thereby driving the rotating shaft 220 to rotate. Of course, the driving component 210 can also use a motor to directly drive the rotating shaft 220 to rotate, or drive the rotating shaft 220 to rotate through a corresponding mechanical transmission mechanism.

[0069] Since the rotating shaft 220 is relatively long and spans the width direction of the battery compartment 2, in order to balance the force on the rotating shaft 220, the driving component 210 in this embodiment is set at two locations, located at both ends of the rotating shaft 220, and on the left and right sides of the head end battery 3, to avoid occupying the front end space of the battery compartment 2 as much as possible to avoid interfering with the sliding of the locking thrust plate 130.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A first-end battery locking mechanism, used to lock and unlock the first-end battery in the battery compartment, characterized in that: include: A locking assembly, comprising a fixing seat, an elastic component, a locking thrust plate slidably mounted on the fixing seat, a locking block and an electrical connector mounted on the locking thrust plate, wherein the sliding direction of the locking thrust plate is parallel to the direction in which the battery enters and exits the compartment; the elastic component is used to apply a restoring elastic force to the locking thrust plate; A driving assembly, comprising a driving component and a rotating shaft driven by the driving component to rotate; A cam is mounted on the rotating shaft to rotate coaxially with the rotating shaft, the cam abuts against the locking thrust plate to drive the locking thrust plate to slide toward the side where the battery is located until the locking block abuts against the battery to achieve locking; When the locking block locks the battery, the electrical connector on the locking push plate is plugged into the electrical connector on the battery.

2. The head end battery locking mechanism according to claim 1, characterized in that: The electrical connector of the battery is arranged on the front end plate and the rear end plate of the battery, and the electrical connector on the locking push plate is plugged into the electrical connector on the front end plate of the battery; the locking block is located at the front edge of the battery, and an L-shaped locking portion is formed on the locking block, and the side A of the L-shaped locking portion is in contact with the front end plate of the battery, and the side B of the L-shaped locking portion is in contact with the left side plate or the right side plate of the battery, and the side A and the side B intersect vertically to form an L shape.

3. The head end battery locking mechanism according to claim 2, characterized in that: An inclined guide surface inclined outward is formed on the free end of the side surface B.

4. The head end battery locking mechanism according to claim 2, characterized in that: The locking block comprises a rigid member and an elastic member which are fixedly connected as one body, the L-shaped locking portion is formed on the elastic member, and the rigid member is fixedly connected to the locking thrust plate.

5. The head end battery locking mechanism according to claim 2, characterized in that: There are two locking blocks, which are arranged on the locking thrust plate at intervals in the lateral direction. The electrical connector on the locking thrust plate is located between the two locking blocks, and the two locking blocks are symmetrically arranged.

6. The head end battery locking mechanism according to claim 5, characterized in that: The locking thrust plate extends in a transverse direction, the two locking blocks are respectively located at two ends of the locking thrust plate, and the electrical connector on the locking thrust plate is located at the center of the locking thrust plate.

7. The head end battery locking mechanism according to claim 6, characterized in that: The rotating shaft extends in a transverse direction, and the cams are arranged at least two places on the rotating shaft along the extending direction thereof at intervals.

8. The head end battery locking mechanism according to claim 1, characterized in that: The fixing seat and the locking thrust plate are provided with sliding guide structures that cooperate with each other and are used to guide the sliding of the locking thrust plate.

9. The head end battery locking mechanism according to claim 8, characterized in that: The sliding guide structure comprises a guide post formed on the locking thrust plate and a guide hole formed in the fixing seat, the extension direction of the guide post is parallel to the sliding direction of the locking thrust plate, and the free end of the guide post and the locking thrust plate are respectively located on both sides of the fixing seat; The elastic component is arranged between the free end of the guide column and the fixing seat, or between the fixing seat and the locking thrust plate.

10. A battery-swap electric vehicle, comprising a battery compartment and a first-end battery locking mechanism provided on the battery compartment, characterized in that: The first-end battery locking mechanism is the first-end battery locking mechanism according to any one of claims 1 to 9.

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