Back splint of electronic equipment and electronic equipment assembly

Abstract

The utility model belongs to the field of electronic equipment accessories, and discloses a back clip of electronic equipment and an electronic equipment assembly, the back clip of the electronic equipment comprises a first shell, a second shell and a locking fastener; the second shell is movably arranged on the first shell in the first direction, and the second shell comprises a main body part and a first limiting part arranged on the main body part; the locking fastener is arranged on the first shell and can move to a first position and a second position of the first shell along a second direction, and the second direction is perpendicular to the first direction; when the locking piece is located at the first position, the locking piece is clamped with the first limiting part, and the main body part is matched with the first shell to fix the electronic equipment; when the locking piece is located at the second position, the locking piece is separated from the first limiting part, and the main body part can be away from the first shell in the first direction so as to release the electronic equipment. According to the utility model, the electronic equipment is fixed or the fixed equipment is unlocked through the movement of the locking fastener, the operation is simple, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, and more particularly to a back clip for an electronic device and an electronic device assembly. Background Technology

[0002] With the widespread use of electronic devices such as mobile phones and tablets, back clips have gradually gained attention as an auxiliary accessory. The main function of a back clip is to lock electronic devices in place with a clip, allowing users to easily fix the devices on their wrists or place them on a table, thus freeing up the user's hands and preventing hand fatigue caused by holding electronic devices for extended periods.

[0003] Currently, most electronic devices use screw-fixed clips on their backs to securely lock the devices in place. However, when fixing and removing the devices, users must use tools such as screwdrivers to disassemble the clips, which is cumbersome and reduces the ease of use. Utility Model Content

[0004] The purpose of this application is to provide a back clip and electronic device assembly for an electronic device, which can fix or unlock the electronic device by moving the locking fastener, making the operation simple and improving the ease of use.

[0005] The technical solution provided in this application is as follows:

[0006] On the one hand, a back clip for an electronic device is provided, comprising:

[0007] First shell;

[0008] The second housing is movably disposed on the first housing along a first direction, and the second housing includes a main body and a first limiting part disposed on the main body;

[0009] A locking element is disposed on the first housing, and the locking element is movable along a second direction to a first position and a second position of the first housing, wherein the second direction is perpendicular to the first direction;

[0010] When the locking member is in the first position, the locking member engages with the first limiting part, and the main body part cooperates with the first housing to fix the electronic device.

[0011] When the locking member is in the second position, the locking member disengages from the first limiting part, and the main body can move away from the first housing along the first direction to release the electronic device.

[0012] In some embodiments, the locking member has a first inclined surface on the side of the main body near the first direction, and the main body has a second inclined surface that cooperates with the first inclined surface;

[0013] When the locking member moves from the first position to the second position, the first inclined surface cooperates with the second inclined surface, causing the main body to move away from the first housing along the first direction.

[0014] In some embodiments, the locking member has a third inclined surface on the side opposite to the main body along the first direction, and a fourth inclined surface is provided on the first limiting part;

[0015] When the locking member moves from the second position to the first position, the third inclined surface cooperates with the fourth inclined surface, causing the main body to move closer to the first housing along the first direction.

[0016] In some embodiments, the second housing further includes a second limiting part disposed on the main body. When the locking member is in the second position, the locking member cooperates with the second limiting part to prevent the main body from detaching from the first housing.

[0017] In some embodiments, along the first direction, the vertical distance from the side of the second limiting portion near the main body to the top surface of the main body is greater than the vertical distance from the side of the first limiting portion near the main body to the top surface of the main body.

[0018] In some embodiments, the first housing is provided with a limiting groove, and the locking member is provided with a limiting protrusion. When the locking member is in the first position, the limiting protrusion is located in the limiting groove to fix the locking member.

[0019] In some embodiments, there are two first limiting parts and two locking fasteners, with the two first limiting parts spaced apart along the second direction, and the two locking fasteners corresponding one-to-one with the two first limiting parts.

[0020] In some embodiments, the first limiting portion includes a first connecting portion and a first engaging portion. The first connecting portion extends along the first direction, and the first engaging portion extends along the second direction. When the locking member is in the first position, the first engaging portion engages with the locking member.

[0021] A guide groove is formed between the two first connecting parts;

[0022] The inner side of the first housing is provided with a guide portion, which is disposed in the guide groove and is movable in the guide groove along the first direction.

[0023] In some embodiments, the first connecting portion is provided with a first flange extending in the first direction on the side near the guide portion, and the guide portion is provided with a second flange extending in the first direction. The first flange is located between the second flange and the first housing to limit the first limiting portion.

[0024] On the other hand, an electronic device assembly is also provided, including an electronic device and a back clip of the electronic device described in any of the above embodiments.

[0025] The technical advantage of this application is that the movement of the locking fastener enables the fixing or unlocking of electronic devices. This not only securely fixes the electronic devices, but also makes the fixing and unlocking process simple and quick, without the need for auxiliary tools, thus improving ease of use. Attached Figure Description

[0026] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0027] Figure 1 This is a schematic diagram of the structure of the locking member of the back clip of an electronic device in the second position according to an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the locking fastener of the back clip of an electronic device in the first position according to an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of the first housing provided in an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the structure of the locking component provided in the embodiments of this application;

[0031] Figure 5 This is a schematic diagram of the structure of the second housing provided in an embodiment of this application;

[0032] Figure 6 This is an exploded view of the back clip of an electronic device provided in an embodiment of this application.

[0033] Explanation of icon numbers:

[0034] 100, First housing; 110, Limiting groove; 120, Guide part; 121, Second flange; 130, First sliding groove; 140, Second sliding groove;

[0035] 200. Second housing; 210. Main body; 211. Second inclined surface; 220. First limiting part; 221. Fourth inclined surface; 222. First connecting part; 2221. First flange; 223. First snap-fit ​​part; 230. Second limiting part; 231. Second connecting part; 232. Second snap-fit ​​part; 240. Guide groove;

[0036] 300, Locking element; 310, Limiting protrusion; 320, Locking body; 321, First inclined surface; 322, Third inclined surface; 330, Operating part;

[0037] 400. Cavity;

[0038] 500, buckle. Detailed Implementation

[0039] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0041] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0042] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0043] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.

[0045] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.

[0046] like Figure 1 and Figure 2 As shown, in one or more embodiments, this disclosure provides a back clip for an electronic device, including a first housing 100, a second housing 200, and a locking member 300; the second housing 200 is movably disposed on the first housing 100 along a first direction, and the second housing 200 includes a main body portion 210 and a first limiting portion 220 disposed on the main body portion 210; the locking member 300 is disposed on the first housing 100, and the locking member 300 is movable along a second direction to a first position and a second position of the first housing 100, the second direction being perpendicular to the first direction; when the locking member 300 is in the first position, the locking member 300 engages with the first limiting portion 220, and the main body portion 210 cooperates with the first housing 100 to fix the electronic device; when the locking member 300 is in the second position, the locking member 300 disengages from the first limiting portion 220, and the main body portion 210 can move away from the first housing 100 along the first direction to release the electronic device.

[0047] Specifically, the first housing 100 is the base component of the back clip, used to install and support the second housing 200 and the locking element 300. The second housing 200 is movably disposed on the first housing 100 along a first direction, which can be the length or width direction of the first housing 100. When the second housing 200 moves into position along the first direction towards the first housing 100, the main body 210 of the second housing 200 and the first housing 100 can enclose to form a cavity 400 with an opening. The electronic device can be directly installed in the cavity 400, where it is tightly fitted to secure the device. Alternatively, the electronic device can have a protruding structure installed in the cavity 400, where it is also tightly fitted to secure the device. When the second housing 200 moves away from the first housing 100 along the first direction, the size of the cavity 400 increases, allowing the electronic device to be removed from the cavity 400, thus detaching the device from the back clip. Preferably, buckles 500 may be provided on the main body 210 of the first housing 100 and the second housing 200 respectively. When the electronic device is installed in the cavity 400 formed by the first housing 100 and the second housing 200, the buckles 500 are used to further limit the electronic device to improve the stability of the electronic device on the back clip.

[0048] The locking element 300 is movably disposed on the first housing 100 along a second direction, which is perpendicular to the first direction. When the first direction is the length direction of the first housing 100, the second direction is the width direction of the first housing 100; when the first direction is the width direction of the first housing 100, the second direction is the length direction of the first housing 100.

[0049] The locking member 300 moves between a first position and a second position of the first housing 100. When the locking member 300 moves to the first position, it engages with the first limiting part 220 in the second housing 200 to fix the position of the second housing 200, so that the second housing 200 and the first housing 100 enclose a cavity 400 for fixing the electronic device. When the locking member 300 moves to the second position, it disengages from the first limiting part 220 in the second housing 200, and the second housing 200 can move away from the first housing 100 to release the electronic device, allowing it to be removed from the back clip. This embodiment achieves fixing or unlocking of the electronic device by moving the locking member 300, which is not only secure but also simple to operate, requiring no external tools and improving ease of use.

[0050] Furthermore, in one example, the back clip also includes an elastic element, which can be a spring. The elastic element is disposed on the first housing 100, with one end connected to the first housing 100 and the other end connected to the locking member 300. When the locking member 300 is moved to the second position, the spring is compressed. When the locking member 300 is released, the elastic element resets, causing the locking member 300 to move to the first position. Under the elastic force of the elastic element, the locking member 300 is held in the first position, so that the locking member 300 is engaged with the first limiting part 220 in the second housing 200, and the movement of the second housing 200 is restricted, thereby securing the electronic device. Figure 3 As shown, in another example, the first housing 100 is provided with a limiting groove 110 or a limiting protrusion, and the locking member 300 is provided with a limiting protrusion 310 or a limiting groove. When the locking member 300 is in the first position, the limiting protrusion 310 is located in the limiting groove 110 to fix the locking member 300 in the first position, so that the locking member 300 is engaged with the first limiting part 220 in the second housing 200, and the movement of the second housing 200 is restricted, thereby fixing the electronic device. It should be noted that the locking member 300 can also be fixed in the first position by other means, such as a pin, a snap-fit, etc.

[0051] Optional, such as Figure 4 As shown, to facilitate operation of the locking element 300, the locking element 300 includes a locking body 320 and an operating part 330. The locking body 320 is slidably connected to the first housing 100, and the operating part 330 is disposed at one end of the locking body 320 for user operation to move the locking element 300. The first housing 100 is also provided with a sliding groove extending in a second direction. The locking body 320 is disposed in the sliding groove and slides along the sliding groove. The sliding groove can limit the sliding direction of the locking element 300 to reduce the difficulty of operation.

[0052] In use, the user operates the operating unit 330 to move the locking member 300 to the second position, disengaging the first limiting part 220 from the locking member 300, allowing the electronic device to be placed between the first housing 100 and the second housing 200. Then, the user moves the locking member 300 to the first position, securing it in place through the engagement of the limiting protrusion 310 and the limiting groove 110. Alternatively, the user can release the locking member 300, allowing it to move to the first position under the elastic force of the elastic member. In this case, the locking member 300 engages with the first limiting part 220 to secure the electronic device within the cavity 400 formed by the first housing 100 and the second housing 200. When it is necessary to release the electronic device, the user operates the operating unit 330 again to move the locking member 300 to the second position, allowing the electronic device to be removed from the cavity 400 formed by the first housing 100 and the second housing 200.

[0053] In some embodiments, such as Figure 1 , Figure 4 and Figure 5 As shown, the locking member 300 has a first inclined surface 321 on the side of the main body 210 along the first direction. The first inclined surface 321 is disposed on the locking body 320, and the main body 210 has a second inclined surface 211 that cooperates with the first inclined surface 321. When the locking member 300 moves from the first position to the second position, the first inclined surface 321 cooperates with the second inclined surface 211, so that the main body 210 moves away from the first housing 100 along the first direction.

[0054] When a user needs to release the electronic device, they simply move the locking member 300 from the first position to the second position. During this movement, the first inclined surface 321 and the second inclined surface 211 gradually come into contact and press against each other. Due to the inclination angle and surface characteristics between the first inclined surface 321 and the second inclined surface 211, the entire second housing 200 is subjected to a gradually increasing thrust in the first direction, causing the second housing 200 to move away from the first housing 100 along the first direction. The distance between the second housing 200 and the first housing 100 increases, and the size of the cavity 400 formed by the second housing 200 and the first housing 100 also increases, allowing the electronic device to be easily removed from the cavity 400. In this embodiment, the entire release process of the electronic device requires no additional mechanical parts or complex operations, which not only improves the ease of operation when releasing the electronic device but also ensures that the electronic device is released safely and quickly, further enhancing the user experience.

[0055] In other embodiments, an elastic element may also be provided on the first housing 100, which is disposed between the first housing 100 and the second housing 200. This elastic element is used to push the second housing 200 away from the first housing 100 in a first direction when the locking member 300 disengages from the first limiting part 220. The elastic element may be a spring, with one end connected to the first housing 100 and the other end connected to the second housing 200.

[0056] In some embodiments, such as Figure 1 , Figure 4 and Figure 5 As shown, the locking member 300 has a third inclined surface 322 on the side away from the main body 210 along the first direction. The third inclined surface 322 is disposed on the locking body 320, and the first limiting part 220 has a fourth inclined surface 221. When the locking member 300 moves from the second position to the first position, the third inclined surface 322 and the fourth inclined surface 221 cooperate, so that the main body 210 moves closer to the first housing 100 along the first direction.

[0057] When a user needs to secure an electronic device, they simply move the locking member 300 from the second position to the first position. As the locking member 300 moves, the third inclined surface 322 and the fourth inclined surface 221 gradually come into contact and press against each other. Due to the inclination angle and surface characteristics between them, the main body 210 of the second housing 200 is subjected to a gradually increasing pressure in the first direction, causing the main body 210 of the second housing 200 to smoothly approach the first housing 100 and cooperate with the first housing 100 to cover and secure the electronic device. The entire process requires no additional mechanical parts or complex operations, is simple and efficient, and ensures that the electronic device is securely and quickly secured.

[0058] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the second housing 200 also includes a second limiting part 230, which is disposed on the main body 210. When the locking member 300 is in the second position, the locking member 300 cooperates with the second limiting part 230 to restrict the main body 210 from detaching from the first housing 100.

[0059] When the locking member 300 is in the second position, the second housing 200, under the cooperation of the first inclined surface 321 and the second inclined surface 211, moves a certain distance away from the first housing 100 in the first direction. Then, the second limiting portion 230 of the second housing 200 contacts a specific part (such as one end or side) of the locking member 300 and forms a limiting fit, thereby restricting the main body 210 from continuing to move away from the first housing 100, and preventing the second housing 200 from dislodging from the first housing 100. This limiting fit in this embodiment can be automatically formed when the locking member 300 moves to the second position, requiring no additional operating steps, making it simple and practical.

[0060] When it is necessary to remove the second housing 200 from the first housing 100, it is only necessary to perform certain operations, such as applying a certain force or removing the locking member 300, so that the locking member 300 is separated from the second limiting part 230, thereby releasing the limiting and realizing the removal of the second housing 200.

[0061] Furthermore, such as Figure 2 As shown, along the first direction, the vertical distance from the side of the second limiting part 230 near the main body 210 to the top surface of the main body 210 is greater than the vertical distance from the side of the first limiting part 220 near the main body 210 to the top surface of the main body 210.

[0062] Specifically, such as Figure 5As shown, the first limiting part 220 includes a first connecting part 222 and a first snap-fit ​​part 223. One end of the first connecting part 222 is connected to the main body part 210, and the other end is connected to the first snap-fit ​​part 223. The first connecting part 222 extends along a first direction, and the first snap-fit ​​part 223 extends along a second direction. A fourth inclined surface 221 is disposed on the first snap-fit ​​part 223. When the locking member 300 is in the first position, the first snap-fit ​​part 223 snaps into the locking member 300 to fix the position of the second housing 200.

[0063] The second limiting part 230 includes a second connecting part 231 and a second locking part 232. One end of the second connecting part 231 is connected to the main body part 210, and the other end is connected to the second locking part 232. The second connecting part 231 extends along a first direction, and the second locking part 232 extends along a second direction. When the locking member 300 is in the second position, the second locking part 232 engages with the locking member 300 to prevent the second housing 200 from coming out of the first housing 100.

[0064] The vertical distance from the side of the second latching portion 232 near the second connecting portion 231 to the top surface of the main body 210 is greater than the vertical distance from the side of the first latching portion 223 near the first connecting portion 222 to the top surface of the main body 210. When the locking member 300 is in the first position and latches with the first latching portion 223, there is a certain distance between the second latching portion 232 and the locking member 300 along the first direction. This design not only provides more space for the movement of the locking member 300 along the second direction, making it more convenient for the user to operate the locking member 300 without feeling obstructed by interference between components; but also, when the locking member 300 moves to the second position, the second housing 200 moves a certain distance away from the first housing 100 before the second latching portion 232 abuts against the locking member 300, so as to release the electronic device.

[0065] Optional, such as Figure 6 As shown, a first sliding groove 130 and a second sliding groove 140 may also be provided on the inner side of the first housing 100. A first limiting part 220 is movably disposed in the first sliding groove 130, and a second limiting part 230 is movably disposed in the second sliding groove 140. The first sliding groove 130 and the second sliding groove 140 can limit the second housing 200.

[0066] In some embodiments, such as Figure 2 As shown, there are two first limiting parts 220 and two locking fasteners 300. The two first limiting parts 220 are spaced apart along the second direction, and the two locking fasteners 300 are arranged in a one-to-one correspondence with the two first limiting parts 220. This double limiting part and double locking fastener design not only improves the reliability of securing electronic devices with the back clip, but also enhances the symmetry and balance of the back clip, further improving the user experience.

[0067] Furthermore, such as Figure 6 As shown, a guide groove 240 is formed between the first connecting portions 222 of the two first limiting portions 220; a guide portion 120 is provided on the inner side of the first housing 100, and the guide portion 120 is disposed in the guide groove 240 and is movable in the guide groove 240 along the first direction.

[0068] When the user operates the locking fastener 300 to move the second housing 200 closer to or further away from the first housing 100 along the first direction, the guide portion 120 located inside the first housing 100 moves accordingly within the guide groove 240 between the two first limiting portions 220. Due to the limiting effect of the guide groove 240 on the guide portion 120, the movement trajectory of the second housing 200 is precisely guided, ensuring that the second housing 200 always moves smoothly along the first direction without shaking or deviating due to external forces or structural gaps, making the movement of the second housing 200 smooth and stable. In addition, to reduce friction and wear, the contact surfaces of the guide groove 240 and the guide portion 120 can be manufactured using a self-lubricating material.

[0069] Preferred, such as Figure 6 As shown, the first connecting portion 222 is provided with a first flange 2221 extending in the first direction on the side near the guide portion 120, and the guide portion 120 is provided with a second flange 121 extending in the first direction. The first flange 2221 is located between the second flange 121 and the first housing 100 to limit the first limiting portion 220.

[0070] When the second housing 200 moves along the first direction, the first flange 2221 on the first connecting portion 222 engages with the second flange 121 on the guide portion 120. Since the first flange 2221 is located between the second flange 121 and the first housing 100, this structure creates a clamping effect, which firmly restricts the first limiting portion 220 within a certain range, preventing the first limiting portion 220 from tilting or swinging in a direction perpendicular to the plane of the first housing 100. Furthermore, the space between the first flange 2221 and the second flange 121 forms a guide groove, thereby achieving a guiding function for the second housing 200 and improving the overall performance and stability of the back clamp. In practical applications, the shape and size of the guide groove are matched with the first flange 2221 to ensure that the first flange 2221 moves smoothly in the guide groove during the movement of the second housing 200. At the same time, the second flange 121 provides sufficient limiting effect on the first flange 2221 to prevent the first limiting part 220 from tilting up.

[0071] This embodiment also provides an embodiment of an electronic device assembly, including an electronic device and a back clip of the electronic device described in any of the above embodiments, the back clip having the following structure: Figures 1 to 6As shown, electronic devices such as mobile phones, tablets, and e-readers can be fixed to the back clip. The back clip can be a wrist strap type or a stand type. The wrist strap type has a wrist strap for users to hold or attach to their wrist; the wrist strap connects to the back clip via a rotating mechanism for easy adjustment of the clip's angle. The stand type has a stand for stable placement on a desktop or other flat surface. The adjustable support structure allows users to adjust the viewing angle of the electronic device according to their needs, meeting usage requirements in different scenarios and improving the back clip's practicality and convenience.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0073] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A back clamp of an electronic device, characterized by comprising: The electronic device back clamping device comprises: a first shell; a second shell movably arranged on the first shell along a first direction, the second shell comprising a main body and a first limiting part arranged on the main body; a lock part arranged on the first shell and movable to a first position and a second position of the first shell along a second direction perpendicular to the first direction; when the lock part is at the first position, the lock part is clamped with the first limiting part, and the main body is fixed with the first shell to fix the electronic device; when the lock part is at the second position, the lock part is disengaged from the first limiting part, and the main body is movable away from the first shell along the first direction to release the electronic device.

2. The electronic device back clamping device according to claim 1, wherein a first inclined surface is arranged on a side of the lock part close to the main body along the first direction, and a second inclined surface is arranged on the main body and matched with the first inclined surface; when the lock part moves from the first position to the second position, the first inclined surface is matched with the second inclined surface to make the main body move away from the first shell along the first direction.

3. The electronic device back clamping device according to claim 2, wherein a third inclined surface is arranged on a side of the lock part away from the main body along the first direction, and a fourth inclined surface is arranged on the first limiting part; when the lock part moves from the second position to the first position, the third inclined surface is matched with the fourth inclined surface to make the main body move close to the first shell along the first direction.

4. The electronic device back clamping device according to any one of claims 1 to 3, wherein the second shell further comprises a second limiting part arranged on the main body, and when the lock part is at the second position, the lock part is matched with the second limiting part to limit the main body from moving away from the first shell.

5. The electronic device back clamping device according to claim 4, wherein along the first direction, a vertical distance from a side of the second limiting part close to the main body to a top surface of the main body is greater than a vertical distance from a side of the first limiting part close to the main body to the top surface of the main body.

6. The electronic device back clamping device according to any one of claims 1 to 3, wherein a limiting groove is arranged on the first shell, and a limiting protrusion is arranged on the lock part, and when the lock part is at the first position, the limiting protrusion is located in the limiting groove to fix the lock part.

7. The electronic device back clamping device according to any one of claims 1 to 3, wherein the number of the first limiting parts and the number of the lock parts are both two, two of the first limiting parts are arranged at intervals along the second direction, and two of the lock parts are arranged in one-to-one correspondence with the two of the first limiting parts.

8. The electronic device back clamping device according to claim 7, wherein The first limiting part comprises a first connecting part and a first clamping part, the first connecting part is arranged to extend along the first direction, the first clamping part is arranged to extend along the second direction, and the first clamping part is clamped with the lock part when the lock part is in the first position; A guide groove is formed between the two first connecting parts; The inner side of the first shell is provided with a guide part, the guide part is arranged in the guide groove and is movable in the guide groove along the first direction.

9. The back clip of an electronic device according to claim 8, characterized in that The side of the first connecting part close to the guide part is provided with a first flange extending along the first direction, the guide part is provided with a second flange extending along the first direction, and the first flange is located between the second flange and the first shell to limit the first limiting part.

10. An electronic device assembly, characterized by An electronic device and a back clip of an electronic device according to any one of claims 1-9.

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