Back clips for electronic devices and electronic device assemblies

Abstract

We provide back clips and electronic device assemblies that are easy to operate and offer improved convenience. [Solution] The back clip for an electronic device comprises a first shell 100, a second shell 200, and a locking fastener 300. The second shell is movably mounted on the first shell along a first direction and comprises a main body 210 and a first limit portion 220 provided on the main body. The locking fastener is provided on the first shell and is movably mounted on the first shell to a first and second position along a second direction, the second direction being perpendicular to the first direction. When the locking fastener is in the first position, it engages with the first limit portion, and the main body cooperates with the first shell to secure the electronic device. When the locking fastener is in the second position, it disengages from the first limit portion, and the main body moves away from the first shell along the first direction, allowing the electronic device to be released. This invention enables the securing of an electronic device and the unlocking of a secured device by the movement of the locking fastener.

Description

Technical Field

[0001] This invention relates to the technical field of electronic device accessories, and particularly to a back clip for an electronic device and an electronic device assembly.

Background Art

[0002] As the use of electronic devices such as mobile phones and tablet terminals spreads, the back clip is attracting attention as an auxiliary accessory. The main function of the back clip is to lock the electronic device with a snap, making it easier for the user to fix the electronic device to the user's wrist, or to place the electronic device on the desktop and release the user's hands, thereby avoiding hand fatigue caused by the user holding the electronic device for a long time.

[0003] Currently, most back clips of electronic devices fix the snap using a screw so that the snap can securely lock the electronic device. However, when fixing or removing the electronic device, the user has to use a tool such as a driver to remove the snap, which makes the operation complicated and reduces the convenience of use.

Summary of the Invention

[0004] An object of the present application is to provide a back clip for an electronic device and an electronic device assembly, which can achieve fixing of the electronic device and unlocking of the fixed device by moving a locking fastener, thus making the operation simple and improving the usability.

[0005] The technical concept provided by the present application is as follows.

[0006] In one aspect, a back clip for an electronic device is provided, a first shell, A second shell is provided so as to be movable along a first direction on the first shell, and comprises a main body and a first limit portion provided on the main body, The first shell is provided with a locking fastener that is movable along a second direction perpendicular to the first direction to a first position and a second position of the first shell, When the locking fastener is in the first position, the locking fastener engages with the first limit portion, and the main body cooperates with the first shell to secure the electronic device. When the locking fastener is in the second position, the locking fastener detaches from the first limit portion, and the main body moves away from the first shell along the first direction, allowing the electronic device to be released (in other words, released or unfastened).

[0007] In some embodiments, the locking fastener has a first inclined surface on the side closer to the main body in the first direction, and the main body has a second inclined surface that cooperates with the first inclined surface. When the locking fastener moves from the first position to the second position, the first inclined surface cooperates with the second inclined surface to separate the main body from the first shell along the first direction.

[0008] In some embodiments, the locking fastener is provided with a third inclined surface on the side that moves away from the main body in the first direction, and the first limit portion is provided with a fourth inclined surface. When the locking fastener moves from the second position to the first position, the third inclined surface cooperates with the fourth inclined surface to bring the main body closer to the first shell along the first direction.

[0009] In some embodiments, the second shell further comprises a second limit portion provided on the main body, which, when the locking fastener is in the second position, cooperates with the second limit portion to prevent the main body from separating from the first shell.

[0010] In some embodiments, in the first direction, the vertical distance from the side of the second limit portion closer to the main body to the upper surface of the main body is greater than the vertical distance from the side of the first limit portion closer to the main body to the upper surface of the main body.

[0011] In some embodiments, the first shell is provided with a limit groove, and the locking fastener is provided with a limit projection, and when the locking fastener is in the first position, the limit projection is positioned within the limit groove to secure the locking fastener.

[0012] In some embodiments, there are two of each of the first limit portions and the locking fasteners, with two of the first limit portions spaced apart in the second direction, and two of the locking fasteners provided in a one-to-one correspondence between the two first limit portions.

[0013] In some embodiments, the first limit portion comprises a first connecting portion and a first engaging portion, wherein the first connecting portion is provided to extend along the first direction, and the first engaging portion is provided to extend along the second direction, and when the locking fastener is in the first position, the first engaging portion engages with the locking fastener. A guide groove is formed between the two first connecting portions. A guide portion is provided on the inside of the first shell, and the guide portion is provided in the guide groove and is movable within the guide groove along the first direction.

[0014] In some embodiments, a first flange extending in the first direction is provided on the side of the first connection portion closer to the guide portion, and a second flange extending in the first direction is provided on the guide portion, the first flange being located between the second flange and the first shell and regulating the position of the first limit portion.

[0015] In one embodiment, an electronic device assembly is provided, comprising an electronic device and a back clip of the electronic device described in any of the above embodiments.

[0016] The technical advantages of this invention include the ability to securely fix or unlock electronic devices by moving the locking fastener, ensuring reliable device fixation. Furthermore, the process of fixing and unlocking electronic devices is simple and quick, eliminating the need for auxiliary tools and improving ease of use. [Brief explanation of the drawing]

[0017] The present application will be described in more detail below, along with the drawings and specific embodiments. [Figure 1] Figure 1 is a schematic diagram of the structure of the back clip of an electronic device according to an embodiment of the present application when the locking fastener is in the second position. [Figure 2] Figure 2 is a schematic diagram of the structure of the locking fastener of the back clip of the electronic device according to the present invention when it is in the first position. [Figure 3] Figure 3 is a schematic diagram of the structure of the first shell according to an embodiment of the present application. [Figure 4] Figure 4 is a schematic diagram of the structure of a locking fastener according to an embodiment of the present application. [Figure 5] Figure 5 is a schematic diagram of the structure of the second shell according to an embodiment of the present application. [Figure 6] Figure 6 is an exploded schematic diagram of the back clip of an electronic device according to an embodiment of the present application.

Best Mode for Carrying Out the Invention

[0018] In the following description, in order to fully understand the embodiments of the present application, it should be noted that the specific details of a specific system structure, technology, etc. are not limited, but are described. However, those skilled in the art should recognize that the present application can also be implemented in other embodiments where these specific details are not described. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to interfere with the description of the present application with unnecessary details.

[0019] Hereinafter, in order to more clearly explain the technical idea in the embodiments of the application or the prior art, specific embodiments of the present application will be described with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings and other implementation manners based on these drawings without any special creativity.

[0020] In order to simplify the drawings, each drawing only schematically shows the part related to the present application, and they do not represent the actual structure as a product. Also, in order to simplify and make the drawings easier to understand, in some drawings, only one of the parts having the same structure or function is schematically shown, or only one is shown. In this specification, "one" not only means "only one", but may also mean "one or more".

[0021] Furthermore, the term "and / or" used in the present specification and the appended claims means any combination of one or more of the related listed items, and all possible combinations, and it should be understood that these combinations are included.

[0022] In this specification, unless otherwise explicitly defined and limited, the terms “attachment,” “connection,” and “connection” should be understood broadly, for example, to mean a fixed connection, a detachable connection, or a joint connection. The connection may be mechanical or electrical. The connection may be direct, indirect through an intermediate medium, or internally connected between two elements. Those skilled in the art will understand the specific meaning of these terms in this application depending on the specific circumstances.

[0023] In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and back are relative, not absolute, when describing the configuration and operation of each component, and do not restrict the direction in which the product is actually used.

[0024] Furthermore, in the description of this application, ordinal numbers such as "first" and "second" are used solely to distinguish and describe related objects, and cannot be interpreted as indicating or suggesting the relative importance or order of the related objects.

[0025] As shown in Figures 1 and 2, in one or more embodiments, the Disclosure provides a back clip for an electronic device comprising a first shell 100, a second shell 200, and a locking fastener 300. The second shell 200 is movably mounted on the first shell 100 along a first direction and comprises a body portion 210 and a first limit portion 220 provided on the body portion 210. The locking fastener 300 is mounted on the first shell 100 and is movably mounted on the first shell 100 to a first and second position along a second direction, the second direction being perpendicular to the first direction. When the locking fastener 300 is in the first position, the locking fastener 300 engages with the first limit portion 220, and the body portion 210 cooperates with the first shell 100 to secure the electronic device. When the locking fastener 300 is in the second position, the locking fastener 300 detaches from the first limit portion 220, and the main body portion 210 moves away from the first shell 100 along the first direction, allowing the electronic device to be released.

[0026] Specifically, the first shell 100 is a base component of a back clip for attaching and supporting the second shell 200 and the locking fastener 300. The second shell 200 is movably mounted on the first shell 100 along a first direction, which may be the length direction or the width direction of the first shell 100. When the second shell 200 moves to a predetermined position in the direction toward the first shell 100 along the first direction, the main body portion 210 of the second shell 200 and the first shell 100 can be brought together to form a cavity 400 with an opening, and an electronic device can be directly mounted in this cavity 400, in which case the electronic device will be in close contact with the cavity 400 to secure the electronic device. Alternatively, a convex hull structure may be provided on the electronic device, and the convex hull structure of the electronic device may be mounted in this cavity 400, in which case the convex hull structure of the electronic device will be in close contact with the cavity 400 to secure the electronic device. As the second shell 200 moves in a direction away from the first shell 100 along the first direction, the dimensions of the cavity 400 increase, allowing the electronic device to be removed from inside the cavity 400 and detached from the back clip. Preferably, the main bodies 210 of the first shell 100 and the second shell 200 are further provided with snaps 500, which further restrict the electronic device when it is mounted in the cavity 400 formed by the first shell 100 and the second shell 200, thereby improving the stability of the electronic device at the back clip.

[0027] The locking fastener 300 is movably mounted on the first shell 100 along a second direction, the second direction being perpendicular to the first direction, and if the first direction is the longitudinal direction of the first shell 100, the second direction is the width direction of the first shell 100. If the first direction is the width direction of the first shell 100, the second direction is the longitudinal direction of the first shell 100.

[0028] The locking fastener 300 moves between the first and second positions of the first shell 100. When the locking fastener 300 moves to the first position, it engages with the first limit portion 220 in the second shell 200, fixing the position of the second shell 200 and forming a cavity 400 for fixing the electronic device by aligning the second shell 200 and the first shell 100. When the locking fastener 300 moves to the second position, the engagement between the locking fastener 300 and the first limit portion 220 in the second shell 200 is released, and the second shell 200 moves away from the first shell 100, releasing the electronic device and allowing it to be removed from the back clip. This embodiment achieves fixing and unlocking of the electronic device by the movement of the locking fastener 300, ensuring secure fixation, and also improves usability by simplifying operation without the need for external tools.

[0029] Furthermore, as an example, the back clip further comprises an elastic member, which may be a spring, and is provided on the first shell 100, with one end connected to the first shell 100 and the other end connected to the locking fastener 300. When the locking fastener 300 is moved to the second position, the elastic member is compressed, and when the locking fastener 300 is released, the elastic member returns to its original state, moving the locking fastener 300 to the first position, and holding the locking fastener 300 in the first position by the elastic force of the elastic member, thereby restricting the movement of the second shell 200 and fixing the electronic device. As shown in Figure 3, in another example, the first shell 100 is provided with a limit groove 110 or limit projection, and the locking fastener 300 is provided with a limit projection 310 or limit groove. When the locking fastener 300 is in the first position, the limit projection 310 is located within the limit groove 110, fixing the locking fastener 300 in the first position and holding the locking fastener 300 so as to engage with the first limit portion 220 on the second shell 200, thereby restricting the movement of the second shell 200 and fixing the electronic device. The locking fastener 300 may be fixed in the first position by other means, for example, by a latch, snap, or the like.

[0030] Furthermore, as shown in Figure 4, in order to facilitate the operation of the locking fastener 300, the locking fastener 300 is equipped with a lock body 320 and an operating part 330. The lock body 320 is slidably connected to the first shell 100, and an operating part 330 is provided at one end of the lock body 320 for the user to operate and move the locking fastener 300. The first shell 100 is further provided with a slide groove extending along the second direction, and the lock body 320 is positioned in the slide groove and slides along the slide groove. The slide groove restricts the sliding direction of the locking fastener 300, thereby reducing the difficulty of operation.

[0031] When in use, the user operates the operating unit 330 to move the locking fastener 300 to the second position, disengaging the first limit portion 220 from the locking fastener 300, and positioning the electronic device between the first shell 100 and the second shell 200. Subsequently, the locking fastener 300 is moved to the first position and fixed in the first position by the cooperation of the limit projection 310 and the limit groove 110, or the locking fastener 300 is released and moved to the first position by the elastic force of the elastic member, at which point the locking fastener 300 cooperates with the first limit portion 220 to fix the electronic device in the cavity 400 formed by the first shell 100 and the second shell 200. When the user wants to release the electronic device, they can operate the control unit 330 again to move the locking fastener 300 to the second position and remove the electronic device from inside the cavity 400 formed by the first shell 100 and the second shell 200.

[0032] In some embodiments, as shown in Figures 1, 4, and 5, the locking fastener 300 has a first inclined surface 321 on the side closer to the main body 210 in the first direction. The first inclined surface 321 is provided on the lock body 320, and the main body 210 has a second inclined surface 211 that cooperates with the first inclined surface 321. When the locking fastener 300 moves from a first position to a second position, the first inclined surface 321 and the second inclined surface 211 cooperate to move the main body 210 away from the first shell 100 along the first direction.

[0033] When a user wants to release an electronic device, they only need to move the locking fastener 300 from the first position to the second position. During the movement of the locking fastener 300, 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 of the first inclined surface 321 and the second inclined surface 211, the entire second shell 200 receives a thrust that gradually increases in the first direction. As a result, the second shell 200 separates from the first shell 100 along the first direction, increasing the distance between the second shell 200 and the first shell 100. This also increases the dimensions of the cavity 400 formed by the second shell 200 and the first shell 100, allowing the electronic device to be easily removed from this cavity 400. In this embodiment, since no additional mechanical parts or complex operations are required during the release of the entire electronic device, not only is the operational convenience of releasing the electronic device improved, but the safe and rapid release of the electronic device is ensured, further enhancing the user experience.

[0034] In other embodiments, the first shell 100 may be further provided with an elastic member, and by placing the elastic member between the first shell 100 and the second shell 200, the second shell 200 will be separated from the first shell 100 along the first direction when the locking fastener 300 disengages from the first limit portion 220. The elastic member may be a spring, one end of which is connected to the first shell 100 and the other end of which is connected to the second shell 200.

[0035] In some embodiments, as shown in Figures 1, 4, and 5, the locking fastener 300 has a third inclined surface 322 on the side that moves away from the main body 210 in the first direction, the third inclined surface 322 is provided on the lock body 320, and a fourth inclined surface 221 is provided on the first limit portion 220. When the locking fastener 300 moves from the second position to the first position, the third inclined surface 322 and the fourth inclined surface 221 cooperate to bring the main body 210 closer to the first shell 100 along the first direction.

[0036] When a user wants to secure an electronic device, they only need to move the locking fastener 300 from the second position to the first position. As the locking fastener 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 of both surfaces, the main body 210 of the second shell 200 receives a gradually increasing pressure in the first direction, causing the main body 210 of the second shell 200 to gradually approach the first shell 100 and work together with the first shell 100 to cover the electronic device, thereby securing the electronic device. The entire process does not require the addition of mechanical parts or complex operations, ensuring that electronic devices can be secured safely and quickly in a simple and efficient manner.

[0037] In some embodiments, as shown in Figures 1, 2, and 5, the second shell 200 further comprises a second limit portion 230, which is provided on the main body portion 210, and when the locking fastener 300 is in the second position, the locking fastener 300 cooperates with the second limit portion 230 to restrict the main body portion 210 from detaching from the first shell 100.

[0038] When the locking fastener 300 is in the second position, the second shell 200 moves a certain distance away from the first shell 100 along the first direction due to the cooperative action of the first inclined surface 321 and the second inclined surface 211. After this, the second limit portion 230 of the second shell 200 and a specific part of the locking fastener 300 (for example, one end or side) come into contact, forming a limit fit. This restricts the main body portion 210 from continuing to move away from the first shell 100, preventing the second shell 200 from coming off the first shell 100. This limit fit according to this embodiment can be formed automatically when the locking fastener 300 moves to the second position without requiring any additional operating steps, making it simple and practical.

[0039] To remove the second shell 200 from the first shell 100, the limit can be released and the second shell 200 removed simply by moving the locking fastener 300 away from the second limit portion 230 by applying a certain amount of force or performing certain operations such as removing the locking fastener 300.

[0040] Furthermore, as shown in Figure 2, in the first direction, the vertical distance from the side of the second limit portion 230 closer to the main body portion 210 to the upper surface of the main body portion 210 is greater than the vertical distance from the side of the first limit portion 220 closer to the main body portion 210 to the upper surface of the main body portion 210.

[0041] Specifically, as shown in Figure 5, the first limit portion 220 comprises a first connecting portion 222 and a first engaging portion 223. The first connecting portion 222 has one end connected to the main body portion 210 and the other end connected to the first engaging portion 223. The first connecting portion 222 is provided to extend along a first direction, and the first engaging portion 223 is provided to extend along a second direction. A fourth inclined surface 221 is provided on the first engaging portion 223. When the locking fastener 300 is in a first position, the first engaging portion 223 engages with the locking fastener 300, thereby fixing the position of the second shell 200.

[0042] The second limit portion 230 comprises a second connecting portion 231 and a second engaging portion 232. The second connecting portion 231 is connected at one end to the main body portion 210 and at the other end to the second engaging portion 232. The second connecting portion 231 is provided to extend along a first direction, and the second engaging portion 232 is provided to extend along a second direction. When the locking fastener 300 is in the second position, the second engaging portion 232 engages with the locking fastener 300, preventing the second shell 200 from coming out of the first shell 100.

[0043] The vertical distance from the side of the second engaging portion 232 closest to the second connecting portion 231 to the upper surface of the main body portion 210 is greater than the vertical distance from the side of the first engaging portion 223 closest to the first connecting portion 222 to the upper surface of the main body portion 210. When the locking fastener 300 is in the first position and engages with the first engaging portion 223, there is a certain distance between the second engaging portion 232 and the locking fastener 300 along the first direction. This design not only provides sufficient space for the locking fastener 300 to move along the second direction, but also makes it easier for the user to operate the locking fastener 300 without experiencing interference between parts. Furthermore, when the locking fastener 300 moves to the second position, the second shell 200 moves a certain distance away from the first shell 100, after which the second engaging portion 232 comes into contact with the locking fastener 300, making it easier to release the electronic device.

[0044] Furthermore, as shown in Figure 6, a first slide groove 130 and a second slide groove 140 may be provided inside the first shell 100, the first limit portion 220 is movably positioned in the first slide groove 130, and the second limit portion 230 is movably positioned in the second slide groove 140, and the first slide groove 130 and the second slide groove 140 can restrict the second shell 200.

[0045] In some embodiments, as shown in Figure 2, there are two first limit sections 220 and two locking fasteners 300, with two first limit sections 220 spaced apart in the second direction, and two locking fasteners 300 provided in a one-to-one correspondence with the two first limit sections 220. The dual limit section and dual locking fastener design not only improves the reliability of the back clip when securing electronic devices, but also enhances the symmetry and balance of the back clip, further improving the user experience.

[0046] Furthermore, as shown in Figure 6, a guide groove 240 is formed between the first connecting portions 222 of the two first limit portions 220. A guide portion 120 is provided inside the first shell 100, and the guide portion 120 is positioned within the guide groove 240 and is movable within the guide groove 240 along the first direction.

[0047] When a user operates the locking fastener 300 to move the second shell 200 closer to or further away from the first shell 100 along the first direction, the guide portion 120 provided on the inside of the first shell 100 moves correspondingly within the guide groove 240 between the two first limit portions 220. The limiting effect of the guide groove 240 on the guide portion 120 accurately guides the movement trajectory of the second shell 200, ensuring that it always moves smoothly along the first direction without shaking or displacement due to external forces or structural gaps, thereby allowing the second shell 200 to move smoothly and stably. Furthermore, to reduce friction and wear, the contact surface between the guide groove 240 and the guide portion 120 may be manufactured using a self-lubricating material.

[0048] Preferably, as shown in Figure 6, a first flange 2221 extending in the first direction is provided on the side of the first connecting portion 222 closest to the guide portion 120, and a second flange 121 extending in the first direction is provided on the guide portion 120. The first flange 2221 is located between the second flange 121 and the first shell 100 and restricts the position of the first limit portion 220.

[0049] As the second shell 200 moves along the first direction, the first flange 2221 provided on the first connecting portion 222 comes into contact with the second flange 121 on the guide portion 120, and the first flange 2221 is positioned between the second flange 121 and the first shell 100. This configuration ensures that the first limit portion 220 is reliably constrained within a certain range, and an engagement effect is formed that prevents the first limit portion 220 from bending or swinging in a direction perpendicular to the plane on which the first shell 100 is located. Furthermore, the position of the first flange 2221 between the second flange 121 and the first shell 100, and the formation of a guide groove in the space between the second flange 121 and the first shell 100, provides a guide function for the second shell 200, improving the overall performance and stability of the back clip. In actual application, the shape and dimensions of the guide groove are matched to the first flange 2221, so that during the period when the second shell 200 moves, the first flange 2221 moves smoothly within the guide groove, and the second flange 121 provides sufficient limiting force to the first flange 2221, thereby preventing warping of the first limit portion 220.

[0050] Furthermore, this embodiment provides an embodiment of an electronic device assembly comprising an electronic device and a back clip for the electronic device described in any of the above embodiments. As shown in Figures 1 to 6, the configuration of the back clip may be such that the electronic device is fixed to the back clip, and the electronic device may be a mobile phone, tablet terminal, reader, etc. The back clip may be a handband type back clip or a bracket type back clip. The hand strap type back clip is provided with a hand strap that the user can hold or fix to their wrist, and the hand strap is connected to the back clip by a rotating mechanism, allowing the angle of the back clip to be easily adjusted. The bracket type back clip is equipped with a bracket, which is used to stably place the back clip on a desktop or other flat surface, and the angle-adjustable support structure of the bracket allows the viewing angle of the electronic device to be adjusted according to the user's needs, meeting the user's usage needs in different scenes and improving the practicality and convenience of the back clip.

[0051] In the embodiments described above, each embodiment has its own emphasis, and for parts of an embodiment that are not described in detail, you may refer to the relevant descriptions in other embodiments.

[0052] Furthermore, the above embodiments can be freely combined as needed. The above are merely preferred embodiments of the present application, and those skilled in the art can make several improvements and modifications without departing from the principles of the present application, and these improvements and modifications should also be considered to fall within the scope of protection of the present application. [Explanation of Symbols]

[0053] 100 First shell, 110 Limit groove, 120 Guide section, 121 Second flange, 130 First slide groove, 140 Second slide groove, 200 Second shell, 210 Main body, 211 Second inclined surface, 220 First limit section, 221 Fourth inclined surface, 222 First connection section, 2221 First flange, 223 First engaging section, 230 Second limit section, 231 Second connection section, 232 Second engaging section, 240 Guide groove, 300 Locking fastener, 310 Limit projection, 320 Lock body, 321 First inclined surface, 322 Third inclined surface, 330 Operating section, 400 Cavity, 500 Snap

Claims

1. A back clip for an electronic device, The first shell and, A second shell is provided so as to be movable along a first direction on the first shell, and comprises a main body and a first limit portion provided on the main body, The first shell is provided with a locking fastener that is movable along a second direction perpendicular to the first direction to a first position and a second position of the first shell, When the locking fastener is in the first position, the locking fastener engages with the first limit portion, and the main body cooperates with the first shell to secure the electronic device. The back clip for an electronic device is characterized in that when the locking fastener is in the second position, the locking fastener detaches from the first limit portion, and the main body separates from the first shell along the first direction, releasing the electronic device.

2. A back clip for an electronic device according to claim 1, The locking fastener has a first inclined surface on the side closer to the main body in the first direction, and the main body has a second inclined surface that cooperates with the first inclined surface. A back clip for an electronic device, characterized in that when the locking fastener moves from the first position to the second position, the first inclined surface cooperates with the second inclined surface to separate the main body from the first shell along the first direction.

3. A back clip for an electronic device according to claim 2, The locking fastener has a third inclined surface on the side that is separated from the main body in the first direction, and the first limit portion has a fourth inclined surface. A back clip for an electronic device, characterized in that when the locking fastener moves from the second position to the first position, the third inclined surface cooperates with the fourth inclined surface to bring the main body closer to the first shell along the first direction.

4. A back clip for an electronic device according to claim 1, The back clip for an electronic device is characterized in that the second shell further comprises a second limit portion, the second limit portion being provided on the main body, and when the locking fastener is in the second position, the locking fastener cooperates with the second limit portion to prevent the main body from separating from the first shell.

5. A back clip for an electronic device according to claim 4, A back clip for an electronic device, characterized in that, in the first direction, the vertical distance from the side of the second limit portion closer to the main body to the upper surface of the main body is greater than the vertical distance from the side of the first limit portion closer to the main body to the upper surface of the main body.

6. A back clip for an electronic device according to claim 1, A back clip for an electronic device, characterized in that the first shell is provided with a limit groove, the locking fastener is provided with a limit projection, and when the locking fastener is in the first position, the limit projection is positioned within the limit groove to fix the locking fastener.

7. A back clip for an electronic device according to claim 1, The back clip for an electronic device is characterized in that both the number of the first limit portion and the number of the locking fasteners are two, the two first limit portions are arranged with an interval between them in the second direction, and the two locking fasteners are provided in a one-to-one correspondence between the two first limit portions.

8. A back clip for an electronic device according to claim 7, The first limit portion comprises a first connecting portion and a first engaging portion, wherein the first connecting portion is provided to extend in the first direction, and the first engaging portion is provided to extend in the second direction, and when the locking fastener is in the first position, the first engaging portion engages with the locking fastener. A guide groove is formed between the two first connecting portions. A back clip for an electronic device, characterized in that a guide portion is provided on the inside of the first shell, the guide portion is provided in the guide groove and is movable within the guide groove along the first direction.

9. A back clip for an electronic device according to claim 8, A back clip for an electronic device, characterized in that a first flange extending in the first direction is provided on the side of the first connection portion closest to the guide portion, a second flange extending in the first direction is provided on the guide portion, and the first flange is located between the second flange and the first shell to restrict the position of the first limit portion.

10. An electronic device assembly, An electronic device assembly comprising an electronic device and a back clip for the electronic device according to any one of claims 1 to 9.

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