Battery pack pop-up structure

Abstract

The utility model relates to a battery pack pop-up structure, and aims to improve operation convenience and ensure operation reliability, the battery pack pop-up structure comprises a fixed seat and a movable seat in sliding connection with the fixed seat, and an elastic piece is arranged between the movable seat and the fixed seat along the sliding direction of the movable seat. A guide groove, a lead-in groove, a locking groove and a lead-out groove which are communicated with one another are formed in the fixed seat, and the guide groove, the lead-in groove, the locking groove and the lead-out groove sequentially surround the locking block protruding outwards; the groove bottom of the end, connected with the locking groove, of the guiding-in groove is higher than the groove bottom of the locking groove, and the groove bottom of the end, connected with the guiding groove, of the guiding-out groove is higher than the groove bottom of the guiding groove. A guide rod is rotationally connected to the moving seat, when the moving seat is pushed to move, one end of the guide rod can enter the locking groove along the guide groove and the guide-in groove to abut against the locking block, and the end of the guide rod can be disengaged from the locking groove and enter the guide-out groove by pushing the moving seat again.

Description

Technical Field

[0001] This application relates to the field of power tools, and particularly to a battery pack ejection structure. Background Art

[0002] In modern portable power tools, a battery pack is usually installed in a housing to provide electrical energy for the power tool. When the battery pack runs out of power, it needs to be placed in a storage device for charging. The storage device usually has a locking structure for locking the battery pack and an ejection structure for ejecting the battery pack after charging is completed to facilitate the user to take away the battery pack.

[0003] Specifically, when charging is required, the battery pack is pushed into the charging compartment of the storage device, and the locking structure fixes the battery pack in the charging compartment. At this time, while the battery pack presses the ejection structure, the charging pins in the storage device are inserted into the charging port of the battery pack to achieve charging; when the battery pack needs to be taken out, the locking structure is operated to disengage the locking structure from the battery pack. At this time, the battery pack is ejected under the elastic restoring force of the ejection structure, and the charging pins are disengaged from the charging port of the battery pack.

[0004] The existing technology solutions have the following problems: 1. The user not only needs to operate the battery pack but also needs to operate the locking structure, and the operation is not convenient enough; 2. The locking structure fails to correctly lock the battery pack due to wear or improper design, etc., resulting in a risk that the battery pack may be accidentally ejected and charging cannot be achieved, and the reliability is relatively low. Summary of the Invention

[0005] The purpose of the present utility model is to propose a battery pack ejection structure in view of the above problems existing in the prior art. The technical problem to be solved by the present utility model is: how to improve the operation convenience while ensuring the operation reliability.

[0006] To achieve the above purpose, the present utility model is realized by the following technical solution: A battery pack ejection structure includes a fixed seat and a moving seat slidably connected to the fixed seat. An elastic member is disposed between the moving seat and the fixed seat along the sliding direction of the moving seat. It is characterized in that the fixed seat has a guiding groove, an introducing groove, a locking groove, and a discharging groove that communicate with each other. The guiding groove, the introducing groove, the locking groove, and the discharging groove are sequentially arranged around a locking block protruding outward;

[0007] The height of the bottom of the groove at the end where the introducing groove is connected to the locking groove is higher than the height of the bottom of the locking groove, and the height of the bottom of the groove at the end where the discharging groove is connected to the guiding groove is higher than the height of the bottom of the guiding groove;

[0008] A guide rod is rotatably connected to the moving seat. When the moving seat is pushed to move, one end of the guide rod can enter the locking groove along the guide groove and the inlet groove and abut against the locking block. By pushing the moving seat again, the end of the guide rod can be disengaged from the locking groove and enter the outlet groove.

[0009] The fixed seat is fixed to the bottom of the battery compartment of the energy storage device and faces the battery compartment opening. The moving seat is slidably mounted on the fixed seat from above the fixed seat. When the battery pack is pushed downward, the moving seat moves downward under the thrust of the battery pack. When moving, one end of the guide rod sequentially enters the locking groove along the guide groove and the inlet groove. At this time, when the hand is released, the guide rod moves in the reverse direction under the elastic restoring force of the elastic member. At this time, since the bottom height of the inlet groove is greater than the height of the locking groove, the guide rod can only move along the edge of the inlet groove and abut against the locking block, so that the moving seat is positioned on the fixed seat to prevent the battery pack from being accidentally ejected. When the battery pack needs to be taken out, by pressing the battery pack again, the battery pack can push the moving seat to move. At this time, the guide rod is disengaged from the locking block. After the hand is released, the guide rod moves in the reverse direction and returns to the guide groove along the outlet groove, and finally the battery pack is ejected. When the battery pack is installed and the moving seat is pushed, since the height of the end of the outlet groove close to the guide groove is greater than the guide groove, the guide rod will not deviate from the track and enter the outlet groove first during movement.

[0010] First, through the structural improvement of the ejection structure of the energy storage device, the locking structure is cancelled. The user only needs to press the battery pack to realize the taking of the battery pack, which improves convenience and enhances the user experience. Secondly, due to the height difference between the bottom of the outlet groove and the guide groove and the height difference between the bottom of the inlet groove and the locking groove, the guide rod can only move in one direction, ensuring the accuracy of the moving direction of the guide rod. At the same time, through the cooperation of the locking block and the guide rod, the battery pack will not be accidentally ejected when it is not being charged, thus improving the reliability of the operation. In addition, the improvement of the ejection structure to cancel the locking structure can reduce mechanical components, enabling the energy storage device to have a more compact layout and improving the flexibility of the design.

[0011] In the above-mentioned battery pack ejection structure, the surface of the locking block near one end of the locking groove has a locking notch. One end of the locking block near the guide groove is a sharp corner. A guide block protrudes outward from the locking groove. The guide block is opposite to the locking notch and the end of the guide block facing the locking notch is a sharp corner. The setting of the locking notch enables the guide rod to form a clamping position with the locking block, so that the guide rod will not deviate when the battery pack ejection structure is in the locked state, further improving the stability and reliability of the battery pack ejection structure. The setting of the guide block enables the guide rod to smoothly enter the outlet groove along the edge of the guide block when the moving seat is pressed again, improving the accuracy of the moving direction of the guide rod.

[0012] In the above-mentioned battery pack ejection structure, the inlet groove is smoothly connected to the guiding groove. The height of the bottom of the inlet groove gradually increases from the guiding groove towards the locking groove. A first stop inclined surface that is smoothly connected to the surface of the locking notch is formed between the bottom of the inlet groove and the bottom of the locking groove. The smooth connection between the inlet groove and the guiding groove enables the guiding rod to slide more smoothly from the guiding groove into the inlet groove; the gradually increasing height of the bottom of the inlet groove from the guiding groove towards the locking groove can form the first stop inclined surface while ensuring the smoothness of the guiding rod sliding in the inlet groove; and the formed first stop inclined surface that is smoothly connected to the surface of the locking notch enables the guiding rod to move better into the locking groove, improving the smoothness of the guiding rod during movement, reducing the blocking feeling of the guiding rod, and thus improving the reliability.

[0013] In the above-mentioned battery pack ejection structure, the outlet groove is smoothly connected to the locking groove. The locking block has an inlet side wall facing the inlet groove. The height of the bottom of the outlet groove gradually increases from the locking groove towards the guiding groove. A second stop inclined surface that is smoothly connected to the inlet side wall is formed between the bottom of the outlet groove and the bottom of the guiding groove. The smooth connection between the outlet groove and the locking groove enables the guiding rod to slide more smoothly from the locking groove into the outlet groove; the gradually increasing height of the bottom of the outlet groove from the locking groove towards the guiding groove can form the second stop inclined surface while ensuring the smoothness of the guiding rod sliding in the outlet groove; and the formed second stop inclined surface that is smoothly connected to the inlet side wall enables the guiding rod to move more smoothly into the inlet groove, further improving the smoothness of the guiding rod during movement, reducing the blocking feeling of the guiding rod, and thus improving the reliability.

[0014] In the above-mentioned battery pack ejection structure, the locking groove is provided with a first protrusion and a second protrusion. Both the first protrusion and the second protrusion are located between the locking block and the guiding block and are connected at the locking notch. A third stop inclined surface is formed between the first protrusion and the second protrusion. One end of the second protrusion close to the outlet groove has a fourth stop inclined surface that is smoothly connected to the side wall of the locking block close to the outlet groove. When the moving seat is pressed again to remove the battery pack, the guiding rod will move along the third stop inclined surface to prevent the guiding rod from moving towards the direction close to the inlet groove. When the guiding rod is smoothly separated from the locking notch and abuts against the fourth stop inclined surface after pressing, the guiding rod can smoothly enter the outlet groove along the fourth stop inclined surface, realizing the ejection of the battery pack. The settings of the third stop inclined surface and the fourth stop inclined surface can prevent the guiding rod from deviating from the traveling direction, further improving the reliability of the ejection structure in use, and thus improving the overall reliability of the energy storage device.

[0015] In the above-mentioned battery pack ejection structure, there are two elastic members, which are compression springs. On the fixed seat, there are two columnar compression spring grooves arranged oppositely. On the moving seat, there are two mounting posts corresponding to the two compression spring grooves. One end of the two compression springs abuts against the bottom of the corresponding compression spring groove, and the other end is sleeved on the corresponding mounting post and abuts against the moving seat. Using compression springs as elastic members has good elastic reset force, long service life, and is economical and reliable.

[0016] In the above-mentioned battery pack ejection structure, the moving seat has a mounting hole. Both ends of the guide rod are bent to the same side. One end is inserted into the mounting hole, and the other end slides relative to the fixed seat. While the guide rod is rotatably connected to the moving seat through bending, it can make the guide rod abut against the locking block in the locked state, so that the moving seat is positioned on the fixed seat, and the structure is simple.

[0017] In the above-mentioned battery pack ejection structure, the moving seat has an elastic sheet. The outer wall of the guide rod facing away from the guide groove abuts against the elastic sheet. When the end of the guide rod slides in the guiding groove, the guide rod can apply pressure to the elastic sheet, causing the elastic sheet to deform to a certain extent. When the end of the guide rod slides from the guiding groove into the locking groove, the elastic sheet returns to its original state and pushes the guide rod to make the guide rod abut against the bottom of the locking groove. Similarly, when the end of the guide rod slides from the guiding-out groove to the guide groove, the guide rod can also abut against the bottom of the guide groove under the action of the elastic reset force of the elastic sheet, so that the guide rod can ensure its function while reciprocating.

[0018] In the above-mentioned battery pack ejection structure, the fixed seat has a sliding groove, and the sliding groove penetrates the fixed seat. The moving seat is provided with a guiding strip that can slide in the sliding groove in the sliding direction. The cooperative sliding connection of the sliding groove and the guiding strip can improve the stability of the moving seat when sliding.

[0019] In the above-mentioned battery pack ejection structure, the fixed seat is provided with a relief groove along the sliding direction of the moving seat. The moving seat has a limiting portion, and a part of the limiting portion is located in the relief groove. One end of the relief groove close to the moving seat has a limiting surface, and the limiting portion can abut against the limiting surface to limit the outward movement stroke of the moving seat. The cooperation of the relief groove and the limiting portion prevents the moving seat from separating from the fixed seat under the action of the elastic force of the compression spring.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] 1. Through the structural improvement of the energy storage device ejection structure, the locking structure is cancelled. The user can take the battery pack only by pressing the battery pack, which improves convenience and enhances the user experience.

[0022] 2. The height difference between the bottom height of the outlet groove and the guide groove, as well as the height difference between the bottom height of the inlet groove and the locking groove, allows the guide rod to move in only one direction, thereby ensuring the accuracy of the moving direction of the guide rod. At the same time, the cooperation between the locking block and the guide rod prevents accidental ejection when there is no battery pack being charged, thereby improving the reliability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 for Figure 1 Magnified view of area A.

[0025] Figure 3 for Figure 1 Schematic diagram of the overall structure from another perspective.

[0026] Figure 4 for Figure 3 Magnified view of area B.

[0027] Figure 5 It is a schematic diagram of the structure of the battery pack of the present invention in the ejected state.

[0028] Figure 6 It is a schematic diagram of the structure of the battery pack of the utility model in the charging state.

[0029] Figure 7 It is an exploded view of the utility model.

[0030] Explanation of the reference numerals: 1. Fixed seat; 111. Guide groove; 112. Lead-in groove; 112a. Stop slope one; 113. Locking groove; 114. Lead-out groove; 114a. Stop slope two; 115. First protrusion; 115a. Stop slope three; 116. Second protrusion; 116a. Stop slope four; 12. Locking block; 121. Locking recess; 122. Lead-in side wall; 13. Guide block; 14. Compression spring groove; 15. Slide groove; 16. Give way groove; 17. Limiting surface; 2. Moving seat; 21. Mounting column; 22. Mounting hole; 23. Elastic sheet; 24. Guide strip; 25. Limiting portion; 3. Elastic member; 4. Guide rod. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in combination with diagrams and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] like Figures 1-4 and Figure 7As shown in the figure, a battery pack ejection structure includes a fixed seat 1, a movable seat 2, an elastic member 3, and a guide rod 4. The fixed seat 1 has a mounting portion for mounting in the battery compartment. The fixed seat 1 is fixed in the battery compartment of the power tool facing the battery compartment opening. The movable seat 2 is slidably connected to the fixed seat 1. The elastic member 3 is arranged between the movable seat 2 and the fixed seat 1 along the sliding direction of the movable seat 2. Specifically, there are two elastic members 3 which are compression springs. On the fixed seat 1, there are two columnar compression spring grooves 14 arranged oppositely. On the movable seat 2, there are two mounting columns 21 corresponding to the two compression spring grooves 14. One end of the two compression springs abuts against the bottom of the corresponding compression spring groove 14, and the other end is sleeved on the corresponding mounting column 21 and abuts against the movable seat 2. Using the compression spring as the elastic member 3 has good elastic restoring force, long service life, and is economical and reliable. The fixed seat 1 has a chute 15 which penetrates the fixed seat 1. The movable seat 2 is provided with a guide strip 24 that can slide in the chute 15 in the sliding direction. The fixed seat 1 is provided with a relief groove 16 along the sliding direction of the movable seat 2. The movable seat 2 has a limiting portion 25, and a part of the limiting portion 25 is located in the relief groove 16. The end of the relief groove 16 close to the movable seat 2 has a limiting surface 17. The limiting portion 25 can abut against the limiting surface 17 to limit the outward movement stroke of the movable seat 2. The sliding connection of the chute 15 and the guide strip 24 can improve the stability of the movable seat 2 when sliding. When the battery pack is ejected, the limiting portion 25 abuts against the limiting surface 17 to prevent the movable seat 2 from separating from the fixed seat 1 under the elastic force of the compression spring.

[0033] On the above-mentioned fixed seat 1, there are a guide groove 111, an introduction groove 112, a locking groove 113, and an export groove 114 that are interconnected. The guide groove 111, the introduction groove 112, the locking groove 113, and the export groove 114 are sequentially arranged around a locking block 12 that protrudes outward. The movable seat 2 has a mounting hole 22. Both ends of the guide rod 4 are bent toward the same side. One end is inserted into the mounting hole 22, and the other end slides relative to the fixed seat 1. The movable seat 2 has an elastic piece 23. The outer wall of the guide rod 4 facing away from the guide groove 111 abuts against the elastic piece 23. While the guide rod 4 is bent to realize the rotational connection with the movable seat 2, it can also make the guide rod 4 abut against the locking block 12 when in the locked state, so that the movable seat 2 is positioned on the fixed seat 1. The structure is simple. When the movable seat 2 is pushed to move, one end of the guide rod 4 can enter the locking groove 113 along the guide groove 111 and the introduction groove 112 to abut against the locking block 12. By pushing the movable seat 2 again, the end of the guide rod 4 can be disengaged from the locking groove 113 and enter the export groove 114.

[0034] The height of the bottom of the groove at the end where the inlet groove 112 is connected to the locking groove 113 is higher than the height of the bottom of the locking groove 113, and the height of the bottom of the groove at the end where the outlet groove 114 is connected to the guiding groove 111 is higher than the height of the bottom of the guiding groove 111; the surface of the locking block 12 near one end of the locking groove 113 has a locking notch 121 such that the guiding rod 4 can form a clamping position with the locking block 12, so that the guiding rod 4 will not deviate when the battery pack ejection structure is in the locked state, further improving the stability and reliability of the battery pack ejection structure. One end of the locking block 12 near the guiding groove 111 is a sharp angle. The inlet groove 112 is smoothly connected to the guiding groove 111. The height of the bottom of the inlet groove 112 gradually increases from the guiding groove 111 towards the locking groove 113. A first stop slope 112a that is smoothly connected to the surface of the locking notch 121 is formed between the bottom of the inlet groove 112 and the bottom of the locking groove 113; the outlet groove 114 is smoothly connected to the locking groove 113. The locking block 12 has an inlet side wall 122 arranged towards the inlet groove 112. The height of the bottom of the outlet groove 114 gradually increases from the locking groove 113 towards the guiding groove 111. A second stop slope 114a that is smoothly connected to the inlet side wall 122 is formed between the bottom of the outlet groove 114 and the bottom of the guiding groove 111. A guiding block 13 protrudes outwards from the locking groove 113. The guiding block 13 is opposite to the locking notch 121 and one end of the guiding block 13 towards the locking notch 121 is a sharp angle. The locking groove 113 has a first protruding portion 115 and a second protruding portion 116. Both the first protruding portion 115 and the second protruding portion 116 are located between the locking block 12 and the guiding block 13 and are connected at the locking notch 121. A third stop slope 115a is formed between the first protruding portion 115 and the second protruding portion 116. One end of the second protruding portion 116 near the outlet groove 114 has a fourth stop slope 116a that is smoothly transitionally connected to the side wall of the locking block 12 near the outlet groove 114 side.

[0035] The introduction slot 112 is smoothly connected to the guiding slot 111, enabling the guiding rod 4 to slide more smoothly from the guiding slot 111 into the introduction slot 112. The height of the bottom of the introduction slot 112 gradually increases from the guiding slot 111 towards the locking slot 113, forming a first stop inclined surface 112a while ensuring the smoothness of the sliding of the guiding rod 4 within the introduction slot 112. The formed first stop inclined surface 112a that is smoothly connected to the surface of the locking notch 121 enables the guiding rod 4 to move better into the locking slot 113. The export slot 114 is smoothly connected to the locking slot 113, enabling the guiding rod 4 to slide more smoothly from the locking slot 113 into the export slot 114. The height of the bottom of the export slot 114 gradually increases from the locking slot 113 towards the guiding slot 111, forming a second stop inclined surface 114a while ensuring the smoothness of the sliding of the guiding rod 4 within the export slot 114. The formed second stop inclined surface 114a that is smoothly connected to the introduction side wall 122 enables the guiding rod 4 to move more smoothly into the introduction slot 112, further improving the smoothness of the guiding rod 4 during movement, reducing the blocking feeling of the guiding rod 4, and thus improving the reliability.

[0036] Combined Figure 5 、 6 , the working principle of the present utility model is as follows: When it is necessary to operate on the battery pack, the battery pack is pushed, causing the moving seat 2 to move under the thrust of the battery pack. During the movement, due to the second stop inclined surface 114a formed by the height difference between the export slot 114 and the guiding slot 111 at one end of the guiding rod 4, the guiding rod 4 can only move along the second stop inclined surface 114a into the introduction slot 112 and move within the introduction slot 112 under the guiding action of the introduction side wall 122. Finally, under the action of the elastic piece 23, the end of the guiding rod 4 that abuts against the guiding slot 111 falls into the locking slot 113. At this time, when the hand is released, the guiding rod 4 moves in the reverse direction under the elastic reset force of the elastic member 3. At this time, due to the first stop inclined surface 112a formed by the height difference between the introduction slot 112 and the locking slot 113, the guiding rod 4 can only move along the first stop inclined surface 112a and abut against the locking block 12, being caught in the locking notch, thereby positioning the moving seat 2 on the fixed seat 1 to prevent the battery pack from being accidentally ejected. When it is necessary to remove the battery pack, when the moving seat 2 is pressed again, the guiding rod 4 will move along the third stop inclined surface 115a to prevent the guiding rod 4 from moving towards the direction close to the introduction slot 112. When the guiding rod 4 successfully disengages from the locking notch 121 and abuts against the fourth stop inclined surface 116a after being pressed, the guiding rod 4 can smoothly enter the export slot 114 along the fourth stop inclined surface 116a, realizing the ejection of the battery pack. The settings of the third stop inclined surface 115a and the fourth stop inclined surface 116a can prevent the guiding rod 4 from deviating from the traveling direction, further improving the reliability of the use of the ejection structure, and thus improving the overall reliability of the energy storage device.

[0037] First, through the structural improvement of the pop-up structure of the energy storage device, the locking structure is cancelled. The user can take out the battery pack only by pressing the battery pack, which improves convenience and enhances the user experience. Secondly, through the first stop slope 112a, the second stop slope 114a, the third stop slope 115a, and the fourth stop slope 116a, the accuracy of the moving direction of the guide rod 4 is ensured. At the same time, the cooperation of the locking block 12 and the guide rod 4 prevents accidental pop-up when there is no battery pack for charging, thus improving the reliability of the operation. In addition, the improvement of the pop-up structure to cancel the locking structure can reduce mechanical components, enabling the energy storage device to have a more compact layout and improving the flexibility of the design.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A battery pack ejection structure, comprising a fixed seat (1) and a movable seat (2) slidably connected to the fixed seat (1), an elastic member (3) being arranged between the movable seat (2) and the fixed seat (1) along the sliding direction of the movable seat (2), characterized in that: The fixing seat (1) has a guide groove (111), an introduction groove (112), a locking groove (113) and an outlet groove (114) which are interconnected, and the guide groove (111), the introduction groove (112), the locking groove (113) and the outlet groove (114) are sequentially surrounded by a locking block (12) protruding outwards; The height of the groove bottom at one end where the introduction groove (112) is connected to the locking groove (113) is higher than the height of the groove bottom of the locking groove (113); the height of the groove bottom at one end where the outlet groove (114) is connected to the guide groove (111) is higher than the height of the groove bottom of the guide groove (111); A guide rod (4) is rotatably connected to the movable seat (2); when the movable seat (2) is pushed to move, one end of the guide rod (4) can enter the locking groove (113) along the guide groove (111) and the introduction groove (112) to abut against the locking block (12); and by pushing the movable seat (2) again, the end of the guide rod (4) can be disengaged from the locking groove (113) and enter the introduction groove (114).

2. A battery pack ejection structure according to claim 1, characterized in that: A locking notch (121) is provided on a surface of one end of the locking block (12) close to the locking groove (113); one end of the locking block (12) close to the guide groove (111) is a sharp corner; a guide block (13) protrudes outward from the locking groove (113); the guide block (13) is opposite to the locking notch (121) and one end of the guide block (13) facing the locking notch (121) is a sharp corner.

3. A battery pack ejection structure according to claim 2, characterized in that: The introduction groove (112) is smoothly connected to the guide groove (111), the height of the groove bottom of the introduction groove (112) gradually increases from the guide groove (111) to the locking groove (113), and a stopper slope (112a) is formed between the groove bottom of the introduction groove (112) and the groove bottom of the locking groove (113), which is smoothly connected to the surface of the locking recess (121).

4. A battery pack ejection structure according to claim 3, characterized in that: The lead-out groove (114) is smoothly connected to the locking groove (113); the locking block (12) has an introduction side wall (122) arranged toward the lead-in groove (112); the height of the groove bottom of the lead-out groove (114) gradually increases from the locking groove (113) toward the guide groove (111); and a second stopper slope (114a) smoothly connected to the introduction side wall (122) is formed between the groove bottom of the lead-out groove (114) and the groove bottom of the guide groove (111).

5. A battery pack ejection structure according to claim 3 or 4, characterized in that: The locking groove (113) has a first protrusion (115) and a second protrusion (116), the first protrusion (115) and the second protrusion (116) are both located between the locking block (12) and the guide block (13) and connected to the locking recess (121), a stop bevel three (115a) is formed between the first protrusion (115) and the second protrusion (116), and the end of the second protrusion (116) close to the guide groove (114) has a stop bevel four (116a) smoothly transitioned to the side wall of the locking block (12) close to the guide groove (114).

6. A battery pack ejection structure according to claim 5, characterized in that: The elastic member (3) has two compression springs, the fixed seat (1) is provided with two columnar compression spring grooves (14) opposite to each other, the movable seat (2) has two mounting posts (21) arranged corresponding to the two compression spring grooves (14), one end of the two compression springs abuts against the bottom of the corresponding compression spring groove (14), and the other end is sleeved on the corresponding mounting post (21) and abuts against the movable seat (2).

7. A battery pack ejection structure according to claim 6, characterized in that: The movable seat (2) has a mounting hole (22), and both ends of the guide rod (4) are bent toward the same side, with one end inserted into the mounting hole (22) and the other end sliding relative to the fixed seat (1).

8. The battery pack ejection structure according to claim 7, characterized in that: The movable seat (2) is provided with an elastic sheet (23), and the outer wall of the guide rod (4) facing away from the guide groove (111) is in contact with the elastic sheet (23).

9. The battery pack ejection structure according to claim 5, characterized in that: The fixed seat (1) has a slide groove (15), the slide groove (15) passes through the fixed seat (1), and the movable seat (2) is provided with a guide bar (24) capable of sliding in the slide groove (15) in a sliding direction.

10. A battery pack ejection structure according to claim 9, characterized in that: The fixed seat (1) is provided with a clearance groove (16) along the sliding direction of the movable seat (2); the movable seat (2) is provided with a limiting portion (25); a portion of the limiting portion (25) is located in the clearance groove (16); an end of the clearance groove (16) close to the movable seat (2) is provided with a limiting surface (17); the limiting portion (25) can abut against the limiting surface (17) to limit the outward movement of the movable seat (2).

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