Battery box and servo driver

Abstract

The utility model relates to the technical field of servo drivers, and provides a battery box and a servo driver, the battery box comprises a battery box body, a plug-in assembly and a limiting assembly, the plug-in assembly comprises a plug-in piece and a slot wall, one of the plug-in piece and the slot wall is arranged on the battery box body, and the other one is used for being installed on a target device. The slot wall is used for surrounding to form at least part of the slot, the plug connector is in plug-in fit with the slot, the limiting assembly comprises a limiting piece and a limiting space, the limiting space is formed in the slot wall, the limiting piece is connected with the plug connector and can be switched between a first position and a second position, at least part of the limiting piece is located in the limiting space at the first position, and at least part of the limiting piece is located in the limiting space at the second position. The limiting piece is limited in the slot; in the second position, the limiting piece is located outside the limiting space. According to the scheme, the problems that in the prior art, the battery box of the servo driver is unstable in installation and prone to falling off can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of servo drivers, and in particular to a battery box and a servo driver. Background Art

[0002] A servo drive is a controller used to control a servo motor. In the prior art, a servo drive has an external battery box, and the battery box is usually mounted on a drive housing of the servo drive. This installation method of the battery box makes the position of the battery box unstable and easy to fall. Utility Model Content

[0003] In view of this, the present application provides a battery box and a servo driver to solve the problem in the prior art that the battery box of the servo driver is unstable in installation and easy to fall off.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A battery box, comprising:

[0006] Battery box body;

[0007] A plug-in assembly, comprising a plug-in component and a slot wall, one of the plug-in component and the slot wall is provided on the battery box body, and the other is used to be installed on a target device, the slot wall is used to surround at least a portion of a slot, and the plug-in component and the slot are plug-matched;

[0008] The limiting assembly comprises a limiting member and a limiting space, wherein the limiting space is provided on the slot wall, the limiting member is connected to the connector and can be switched between a first position and a second position, wherein:

[0009] In the first position, at least a portion of the limiting member is located in the limiting space to limit the limiting member in the slot; in the second position, the limiting member is located outside the limiting space.

[0010] Optionally, the connector is provided on the battery box body, and the slot wall is used for installation on the target device.

[0011] Along the insertion direction of the battery box body, the slot wall includes a first section and a second section that are spaced apart, and the spacing space between the first section and the second section forms the limiting space.

[0012] Optionally, along the insertion direction, the length of the first section is 12-20 mm.

[0013] Optionally, the slot wall further includes a third section, the extending direction of the third section intersects with the extending directions of the first section and the second section, and is used to support the battery box body in the insertion direction. The third section encloses at least part of the bottom space of the slot, and one end of the slot away from the third section forms a slot opening.

[0014] Along the insertion direction, the third section and the second section are spaced apart. The bottom space is a tapered space, and the shape of the insertion end of the plug-in member matches the shape of the tapered space.

[0015] Optionally, the limiting member includes an elastic limiting member. When the elastic limiting member is not subjected to an external force, the elastic limiting member is located at the first position.

[0016] Optionally, the elastic limiting member includes a spring piece. The spring piece includes a connecting end and a limiting end. The connecting end is connected to the battery box body, and the end of the spring piece away from the connecting end is bent to form the limiting end.

[0017] In the first position, a first included angle is formed between the spring piece and the battery box body, and at least part of the limiting end is located within the limiting space.

[0018] In the second position, a second included angle is formed between the spring piece and the battery box body, and the limiting end is located outside the limiting space. Both the first included angle and the second included angle are acute angles, and the second included angle is smaller than the first included angle.

[0019] Optionally, the distance between the top surface of the battery box body and the spring piece is 12-20 mm, and the top surface is away from the insertion end of the plug-in member.

[0020] Optionally, the plug-in member includes a rib provided on the surface of the battery box body. In the insertion direction, the rib includes a first part and a second part arranged in sequence and spaced apart. The spring piece is located between the first part and the second part, where:

[0021] A relief inclined surface is provided at one end of the second part close to the spring piece to guide the second part when the second part enters the insertion space surrounded by the first section.

[0022] Optionally, the first section includes a bottom wall and a side wall that enclose the insertion space. The bottom wall is disposed opposite to the opening of the insertion space, and the side wall is located between the bottom wall and the opening.

[0023] The relief inclined surface includes a first relief inclined surface that cooperates with the bottom wall and a second relief inclined surface that cooperates with the side wall.

[0024] Optionally, the limiting end located at the second position can pass through the insertion space surrounded by the first section, and

[0025] a guiding inclined surface is provided on the limiting end. When the limiting end enters the insertion space along the insertion direction, the guiding inclined surface is in sliding fit with the end of the first section far from the second section, so as to guide the limiting end of the elastic sheet into the insertion space.

[0026] A servo driver includes a driver housing and the battery box in any one of the above. One of the plug-in member and the slot wall is provided on the battery box body, and the other is installed on the driver housing. The slot wall encloses at least part of the slot, and the plug-in member is in plug-in fit with the slot.

[0027] In the embodiment of the present application, outside the battery box body, a plug-in assembly and a limiting assembly are added. The plug-in assembly is used to realize the plug-in between the battery box body and the target device, and the battery box body is limited in the insertion direction and the opposite direction of the insertion direction through the limiting assembly, so as to improve the position stability of the battery box body relative to the target device, and thus improve the installation stability of the battery box body after it is installed on the target device. It can be seen that applying the battery box in the embodiment of the present application to a servo driver (i.e., the target device is the driver housing) can solve the problem in the prior art that the battery box of the servo driver is not stably installed and is easy to fall off. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application 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 drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0029] Figure 1 Structural schematic diagrams of the servo driver when the battery box body in the embodiment of the present application is in the inserted state and the uninserted state;

[0030] Figure 2 For Figure 1 the enlarged view at A in

[0031] Figure 3 Structural schematic diagrams of the battery box body and the plug-in member provided in the embodiment of the present application;

[0032] Figure 4 For Figure 3 the enlarged view at B in

[0033] Figure 5The front view of the second part provided by the embodiment of the present application;

[0034] Figure 6 The left view of the second part provided by the embodiment of the present application;

[0035] Figure 7 The left view of the servo driver when the battery box body is in the uninserted state provided by the embodiment of the present application;

[0036] Figure 8 The left view of the servo driver when the battery box body is in the inserted state provided by the embodiment of the present application;

[0037] Figure 9 The top view of the servo driver when the battery box body is not installed and the top view of the servo driver when the battery box body is in the inserted state provided by the embodiment of the present application.

[0038] In Figures 1-9 :

[0039] 100. Battery box; 110. Battery box body; 120. Plug-in component; 121. First part; 122. Second part; 1221. First relief slope; 1222. Second relief slope; 123. Insertion end; 130. Limiting part; 131. Connection end; 132. Limiting end; 133. Guide slope; 1331. First end; 1332. Second end;

[0040] 200. Slot wall; 210. First section; 211. Bottom wall; 212. Side wall; 213. Insertion space; 220. Second section; 230. Third section; 240. Limiting space;

[0041] 300. Driver housing;

[0042] 400. Slot; 410. Bottom space of the slot. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0044] As Figures 1 to 9 shown, the embodiment of the present application provides a battery box that can be applied to a servo driver. The provided battery box includes a battery box body 110, a plug-in assembly, and a limiting assembly.

[0045] Among them: The battery box body 110 has a receiving cavity for receiving a battery.

[0046] The plug-in assembly includes a plug-in member 120 and a slot wall 200. One of the plug-in member 120 and the slot wall 200 is provided on the battery box body 110, and the other is for installation on a target device (such as the drive housing 300). The slot wall 200 is used to enclose at least part of the slot 400. The plug-in member 120 is in plug-in fit with the slot 400. In this way, the battery box body 110 is installed on the target device through the plug-in fit between the slot 400 and the plug-in member 120.

[0047] Optionally, among the plug-in member 120 and the slot wall 200, the component for installation on the target device can be connected to the target device by means of bolt connection, bonding, or welding; or, the component for installation on the target device can also be formed on the target device by integral molding.

[0048] Optionally, the slot wall 200 can independently enclose the slot 400, that is to say, the slot wall 200 itself encloses the slot 400; or, the slot wall 200 can also cooperate with the target device (or the battery box body 110) to enclose the slot 400, that is to say, the target device (or the battery box body 110) forms part of the slot wall of the slot 400, serving two purposes and reducing material costs.

[0049] Optionally, in a plane perpendicular to the insertion direction a of the battery box body 110, the plug-in member 120 and the slot 400 can be in a limiting fit to improve the position stability of the plug-in member 120 and the slot 400, and further improve the installation stability of the battery box body 110 and the target device.

[0050] The limiting assembly includes a limiting member 130 and a limiting space 240. The limiting space 240 is opened on the slot wall 200. The limiting member 130 is movably connected to the plug-in member 120, and the limiting member 130 can be switched between a first position and a second position, where:

[0051] In the first position, at least part of the limiting member 130 is located in the limiting space 240. The limiting member 130 and the limiting space 240 are in limiting fit in the insertion direction a of the battery box body 110 and the reverse direction of the insertion direction a to limit the limiting member 130 in the slot 400, so that the plug-in member 120 and the slot 400 cannot move in the insertion direction a and the reverse direction of the insertion direction a, thereby preventing the battery box body 110 and the target device from moving relatively in the insertion direction a and the reverse direction of the insertion direction a, and improving the installation stability of the battery box body 110.

[0052] In the second position, the limiting member 130 is located outside the limiting space 240. In the insertion direction a and the opposite direction of the insertion direction a, the plug-in member 120 and the slot 400 can move relative to each other, so that the battery box body 110 and the target device can move relative to each other, thereby realizing the installation and disassembly of the battery box body 110.

[0053] In the embodiment of the present application, outside the battery box body 110, a plugging assembly and a limiting assembly are added. The plugging assembly is used to realize the plugging between the battery box body 110 and the target device, and the limiting assembly is used to limit the battery box body 110 in the insertion direction a and the opposite direction of the insertion direction a, so as to improve the position stability of the battery box body 110 relative to the target device, and thus improve the installation stability of the battery box body 110 after the battery box body 110 is installed on the target device. It can be seen that applying the battery box 100 in the embodiment of the present application to a servo driver (that is, the target device is the driver housing 300) can solve the problem in the prior art that the battery box of the servo driver is not stably installed and is easy to fall off.

[0054] In the embodiment of the present application, the plug-in member 120 can be arranged on the battery box body 110, and the slot wall 200 can be used for installation on the target device and for enclosing the slot 400 with the outer wall of the target device.

[0055] In an alternative embodiment, the limiting space 240 can be a groove formed on the slot wall 200.

[0056] In another alternative embodiment, along the insertion direction a of the battery box body 110, the slot wall 200 can include a first section 210 and a second section 220 that are spaced apart, and the space between the first section 210 and the second section 220 forms the limiting space 240.

[0057] In this case, compared with the embodiment in which the limiting space 240 is formed by opening a groove on the slot wall 200, the embodiment in which the space between the first section 210 and the second section 220 forms the limiting space 240 makes the depth of the limiting space 240 greater, so that the depth of the limiting member 130 inserted into the limiting space 240 is deeper, and thus the limiting effect of the cooperation between the limiting member 130 and the limiting space 240 is improved.

[0058] Optionally, in the embodiment of the present application, in the first position, the outer wall surface of the part of the limiting member 130 extending into the limiting space 240 can be flush with the outer wall surface of the slot wall 200; or, in the first position, the limiting member 130 can pass through the limiting space 240 and extend outside the slot 400.

[0059] When there is a spacing space between the first section 210 and the second section 220, the length L1 of the first section 210 can be 12 - 20 mm, such as 12 mm, 16 mm, 20 mm. The insertion space 213 enclosed by the first section 210 within this length range can prevent the insertion end 123 of the battery case body 110 from warping when it moves between the first section 210 and the second section 220 during the process of inserting the battery case body 110, resulting in skewing of the moving direction of the battery case body 110, and thus causing problems such as the plug-in member 120 slipping out of the slot 400 and the battery case body 110 slipping off.

[0060] In the embodiment of the present application, the number of the first sections 210 and the second sections 220 can both be two. The two first sections 210 are spaced apart in a direction perpendicular to the insertion direction a. The insertion space 213 enclosed by the first section 210 has an opening, and the openings of the insertion spaces 213 enclosed by the two first sections 210 face each other, so that the two first sections 210 and the target device cooperate to form the entrance section of the slot 400.

[0061] Correspondingly, the portions of the plug-in member 120 located on the opposite sides of the battery case body 110 (i.e., the ridges located on the opposite sides of the battery case body 110) can respectively extend into the insertion spaces 213 enclosed by the two first sections 210.

[0062] The slot wall 200 can further include a third section 230. The extending direction of the third section 230 can intersect (e.g., be perpendicular to) the extending directions of the first section 210 and the second section 220. The third section 230 is used to support the battery case body 110 in the insertion direction a. The third section 230 encloses at least part of the bottom space 410 of the slot 400, and one end of the slot 400 away from the third section 230 forms a slot opening.

[0063] In an alternative embodiment, the third section 230 can be a flat plate-like structure, and the third section 230 limits and supports the battery case body 110 in the opposite direction of the insertion direction a.

[0064] In another alternative embodiment, along the insertion direction a, the third section 230 can be spaced apart from the second section 220. The inner wall of the third section 230 has an inclined surface, and this inclined surface makes the bottom space 410 form a tapered space along the insertion direction a. The shape of the insertion end 123 of the plug-in member 120 matches the shape of the tapered space.

[0065] In this case, the bottom space 410 of the slot is designed as a tapered space along the insertion direction a, so that when the insertion end 123 enters the bottom space 410 of the slot, it can move from a space with a larger cross-sectional area to a space with a smaller cross-sectional area, which is convenient for the insertion end 123 to enter the bottom space 410 of the slot and prevent interference between the insertion end 123 and the third section 230 when inserting the battery box body 110.

[0066] The shape of the insertion end 123 matches the shape of the tapered space. During the process of the insertion end 123 entering the bottom space 410 of the slot, the inclined surface of the bottom space 410 can guide the insertion end 123. After the insertion end 123 is inserted into the bottom space 410 of the slot, the insertion end 123 abuts against the inner surface of the tapered space, making the positions of the insertion end 123 and the bottom space 410 relatively fixed, and improving the installation stability of the battery box body 110.

[0067] There are various types of limit members 130. In an optional embodiment, the limit member 130 can be movably installed on the battery box body 110 and can move between a first position and a second position to achieve position switching.

[0068] In another preferred embodiment, the limit member 130 can include an elastic limit member. When the elastic limit member is not subjected to an external force, the elastic limit member is located at the first position. In this case, the limit member 130 is not easily disengaged from the limit space 240 due to accidental touch or other reasons, which can ensure the position stability of the limit member 130 when it is at the first position, thereby improving the reliability of the limit cooperation between the limit member 130 and the limit space 240.

[0069] There are various structures of the elastic limit member. In an optional embodiment, the elastic limit member can be an elastic column protruding from the plug-in member 120, and the elastic column protrudes in the direction of the limit space 240.

[0070] In another preferred embodiment, the elastic limit member can include a spring piece. The spring piece includes a connection end 131 and a limit end 132. The connection end 131 is connected to the battery box body 110, and the end of the spring piece far from the connection end 131 is bent to form the limit end 132.

[0071] In the first position, a first included angle is formed between the spring piece and the battery box body 110, and at least a part of the limit end 132 is located in the limit space 240. In the second position, a second included angle is formed between the spring piece and the battery box body 110, and the limit end 132 is located outside the limit space 240. Both the first included angle and the second included angle are acute angles, and the second included angle is smaller than the first included angle. In this structure, when the user presses the spring piece in the direction of the battery box body 110, the limit end 132 can be disengaged from the limit space 240, which is convenient for taking out the battery box body 110.

[0072] In the case where the stopper 130 includes a spring sheet, the distance between the top surface of the battery box body 110 and the spring sheet can be 12-20 mm, for example, 12 mm, 16 mm, 20 mm, and the top surface of the battery box body 110 is the surface away from the insertion end 123 of the plug-in component 120. When the battery box body 110 needs to be taken out, the user can hold the battery box body 110 from the top surface downward, and then press the spring sheet to switch the spring sheet to the second position, and then take out the battery box body 110 in the opposite direction of the insertion direction a. This size range is more suitable for the size of the user's hand, so that the user can press the spring sheet when holding the battery box body 110.

[0073] In the above scheme, the number of the first section 210 and the number of the second section 220 can be two, and the number of the limiting spaces 240 is also two. Correspondingly, the number of the limiting members 130 can be two, which are respectively installed on the two opposite surfaces of the battery box body 110 and respectively cooperate with the two limiting spaces 240.

[0074] The plug-in connector 120 may include a convex strip arranged on the surface of the battery box body 110, and the convex strip may be distributed along the outer periphery of the battery box body 110. In the insertion direction a, the convex strip includes a first part 121 and a second part 122 arranged sequentially and at intervals. The spring piece may be located between the first part 121 and the second part 122. When the number of the limiting members 130 is two, the number of the first part 121 and the second part 122 are both two. The two first parts 121 are arranged at opposite ends of the battery box body 110 in a direction perpendicular to the insertion direction a. The arrangement of the two second parts 122 is similar, which will not be repeated herein.

[0075] This structure can improve the assembly stability of the slot 400 and the battery box body 110 , thereby improving the installation stability of the battery box body 110 .

[0076] An end of the second portion 122 close to the elastic sheet may be provided with an avoidance slope to guide the second portion 122 when the second portion 122 enters the insertion space 213 surrounded by the first section 210 during the process of taking out the battery box body 110 .

[0077] The first section 210 may include a bottom wall 211 and a side wall 212. The bottom wall 211 and the side wall 212 may be vertically arranged to enclose an insertion space 213. The bottom wall 211 is arranged opposite to an opening of the insertion space 213. The side wall 212 is located between the bottom wall 211 and the opening. The avoidance slope may include a first avoidance slope 1221 that cooperates with the bottom wall 211, and a second avoidance slope 1222 that cooperates with the side wall 212.

[0078] For details, please refer to Figure 2 , Figure 3 and Figure 5, when the avoidance inclined surface is located within the insertion space 213, in the opposite direction of the insertion direction a, the first avoidance inclined surface 1221 can be inclined and extended towards the opening direction of the insertion space 213 to prevent interference between the second portion 122 and the bottom wall 211 of the first section 210 during the process of the second portion 122 entering the insertion space 213 surrounded by the first section 210.

[0079] Specifically, please refer to Figure 2 , Figure 3 and Figure 6 , when the avoidance inclined surface is located within the insertion space 213, in the opposite direction of the insertion direction a, the second avoidance inclined surface 1222 can be inclined and extended away from the side wall 212 to prevent interference between the second portion 122 and the side wall 212 of the first section 210 during the process of the second portion 122 entering the insertion space 213 surrounded by the first section 210.

[0080] When the elastic piece is in the second position, the limiting end 132 can pass through the insertion space 213 surrounded by the first section 210. When inserting the battery box body 110, the elastic piece can be manually held to move the elastic piece to the second position, and then the battery box body 110 can be inserted.

[0081] In another preferred embodiment, a guiding inclined surface 133 can be provided on the limiting end 132. When the limiting end 132 enters the insertion space 213 along the insertion direction, the guiding inclined surface 133 is in sliding fit with the end of the first section 210 away from the second section 220 to guide the limiting end 132 of the elastic piece into the insertion space 213.

[0082] When inserting the battery box body 110, before the limiting end 132 of the elastic piece enters the insertion space 213 surrounded by the first section 210, the guiding inclined surface 133 abuts against the end of the first section 210 away from the second section 220. During the movement of the battery box body 110 along the insertion direction a, the end of the first section 210 away from the second section 220 and the guiding inclined surface 133 slide relative to each other, squeezing the guiding inclined surface 133 to move the elastic piece to the second position.

[0083] Specifically, along the insertion direction a, the guiding inclined surface 133 includes a first end 1331 and a second end 1332, and the distance between the first end 1331 and the insertion end 123 is greater than the distance between the second end 1332 and the insertion end 123.

[0084] Based on the above battery box 100, an embodiment of the present application further provides a servo driver, which includes a driver housing 300 and the above battery box 100.

[0085] One of the connector 120 and the slot wall 200 is provided on the battery box body 110, and the other is installed on the driver housing 300. The slot wall 200 encloses at least part of the slot 400, and the connector 120 is inserted and matched with the slot 400. Specifically, the slot wall 200 is installed on the driver housing 300 and together with the driver housing 300 encloses the slot 400. The connector 120 is provided on the battery box body 110, and the connector 120 is inserted and matched with the slot 400 so that the battery box body 110 and the driver housing 300 are inserted and connected, and under the cooperation of the limiting member 130 and the limiting space 240, they are in limiting cooperation in the insertion direction of the battery box body 110.

[0086] Since the servo driver has the above-mentioned battery box 100, for the beneficial effects brought by the battery box 100 to the servo driver, please refer to the above content and will not be elaborated here.

[0087] The basic principles of the present application have been described in conjunction with specific embodiments. However, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are only examples and not limitations. It cannot be considered that these advantages, benefits, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for illustrative and easy-to-understand purposes and are not limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0088] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present application are only illustrative examples and do not intend to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended words, meaning "including but not limited to", and can be used interchangeably with each other. The words "or" and "and" used here refer to the word "and / or" and can be used interchangeably with each other unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to" and can be used interchangeably with each other.

[0089] It should also be noted that in the devices, equipment, and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present application.

[0090] The foregoing description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Thus, the present application is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0091] It should be understood that the ordinal numbers “first”, “second”, “third”, “fourth”, “fifth” and “sixth” used in the description of the embodiments of the present application are only for a clearer elaboration of the technical solutions and cannot be used to limit the protection scope of the present application.

[0092] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the form disclosed herein. Although several example aspects and embodiments have been discussed above, those skilled in the art will recognize some variations, modifications, alterations, additions, and subcombinations thereof.

Claims

1. A battery case, characterized in that, Comprising: A battery box body (110); A plugging component, including a plugging member (120) and a slot wall (200), one of the plugging member (120) and the slot wall (200) is provided on the battery box body (110), and the other is for installation on a target device. The slot wall (200) is used to enclose at least part of a slot (400), and the plugging member (120) is in plugging fit with the slot (400); A limiting component, including a limiting member (130) and a limiting space (240). The limiting space (240) is formed in the slot wall (200). The limiting member (130) is connected to the plugging member (120) and can be switched between a first position and a second position, where: In the first position, at least part of the limiting member (130) is located within the limiting space (240) to limit the limiting member (130) in the slot (400); in the second position, the limiting member (130) is located outside the limiting space (240).

2. The battery case according to claim 1, wherein The plugging member (120) is provided on the battery box body (110), and the slot wall (200) is for installation on the target device. Along the insertion direction (a) of the battery box body (110), the slot wall (200) includes a first section (210) and a second section (220) that are spaced apart. The spaced space between the first section (210) and the second section (220) forms the limiting space (240).

3. The battery case according to claim 2, characterized in that, Along the insertion direction (a), the length (L1) of the first section (210) is 12 - 20 mm.

4. The battery box according to claim 2, wherein The slot wall (200) further includes a third section (230). The extending direction of the third section (230) intersects with the extending directions of the first section (210) and the second section (220) and is used to support the battery box body (110) in the insertion direction (a). The third section (230) encloses at least part of the bottom space (410) of the slot (400). One end of the slot (400) away from the third section (230) forms a slot opening; Along the insertion direction (a), the third section (230) and the second section (220) are spaced apart. The bottom space (410) is a tapered space, and the shape of the insertion end (123) of the plugging member (120) matches the shape of the tapered space.

5. The battery case according to claim 2, wherein, The limiting member (130) includes an elastic limiting member. When the elastic limiting member is not subjected to an external force, the elastic limiting member is in the first position.

6. The battery case according to claim 5, wherein, The elastic limiting member includes a spring piece. The spring piece includes a connecting end (131) and a limiting end (132). The connecting end (131) is connected to the battery box body (110), and the end of the spring piece away from the connecting end (131) is bent to form the limiting end (132); When in the first position, a first included angle is formed between the elastic piece and the battery box body (110), and at least a part of the limiting end (132) is located in the limiting space (240); When in the second position, a second included angle is formed between the elastic piece and the battery box body (110), the limiting end (132) is located outside the limiting space (240), both the first included angle and the second included angle are acute angles, and the second included angle is smaller than the first included angle.

7. The battery case according to claim 6, wherein, The distance between the top surface of the battery box body (110) and the elastic piece is 12 - 20 mm, and the top surface is far away from the insertion end (123) of the plug-in part (120).

8. The battery case according to claim 6, wherein, The plug-in part (120) includes a rib provided on the surface of the battery box body (110). In the insertion direction (a), the rib includes a first part (121) and a second part (122) arranged in sequence and at intervals, and the elastic piece is located between the first part (121) and the second part (122), where: One end of the second part (122) close to the elastic piece is provided with an avoidance inclined surface to guide the second part (122) when the second part (122) enters the insertion space (213) surrounded by the first section (210).

9. The battery case according to claim 8, wherein The first section (210) includes a bottom wall (211) and a side wall (212) surrounding the insertion space (213), the bottom wall (211) is arranged opposite to the opening of the insertion space (213), and the side wall (212) is located between the bottom wall (211) and the opening; The avoidance inclined surface includes a first avoidance inclined surface (1221) cooperating with the bottom wall (211) and a second avoidance inclined surface (1222) cooperating with the side wall (212).

10. The battery case according to claim 6, characterized in that, The limiting end (132) in the second position can pass through the insertion space (213) surrounded by the first section (210), and, A guiding inclined surface (133) is provided on the limiting end (132). When the limiting end (132) enters the insertion space (213) along the insertion direction (a), the guiding inclined surface (133) is in sliding fit with one end of the first section (210) far away from the second section (220) to guide the limiting end (132) of the elastic piece into the insertion space (213).

11. A servo driver, characterized in that, It includes a driver housing (300) and a battery box (100) according to any one of claims 1 - 10. One of the plug-in part (120) and the slot wall (200) is provided on the battery box body (110), and the other is installed on the driver housing (300). The slot wall (200) surrounds at least part of the slot (400), and the plug-in part (120) is in plug-in fit with the slot (400).

Images