Fixer for electronic devices

Abstract

The present invention provides a fixture for an electronic device, comprising a positioning member, including a base having a raised step on top, with a first support recess and a second support recess formed opposite to each other at both ends of the base and the step, and a corresponding first positioning protrusion and a second positioning protrusion formed on the outer peripheral surfaces of the step adjacent to the first support recess and the second support recess; and a plate fixing structure on the bottom surface of the base for fixing to a plate hole in a plate in a forward or reverse direction, wherein a first distance from the first support recess to the center of the plate fixing structure is less than a second distance from the second support recess to the center of the plate fixing structure, to accommodate the length difference between the first electronic device and the second electronic device; and a clamping member including a clamping piece, the clamping piece having a docking mechanism with the step, and the clamping piece closing the first support recess and / or the second support recess.

Description

Technical Field

[0001] This invention relates to a fastener, and more specifically to a fastener for two electronic devices of different lengths, such as an M.2 solid-state drive, a Wi-Fi wireless network card, a 3G network card, or a circuit board. Background Technology

[0002] The technique of using a fastener to attach an electronic device to a substrate, such as a circuit board, is well known, as illustrated in utility model patent application number 201520485399.7.

[0003] The aforementioned electronic devices, such as M.2 solid-state drives (SSDs), lack any dimensional specifications in this technical field, resulting in M.2 SSDs manufactured by different companies having different lengths. Furthermore, the aforementioned substrates, such as circuit boards, have fixed distances between the electrical connectors and the mounting holes for the mounting brackets to accommodate M.2 SSDs of the correct length. If an M.2 SSD has insufficient memory capacity or is damaged, it must be replaced with a new one. If the new and old M.2 SSDs differ in length, for example, by 2mm, the new M.2 SSD cannot be installed on the circuit board, causing problems for electronic equipment manufacturers, such as server assemblers.

[0004] Therefore, how to make the fixture adaptable to two electronic devices of different lengths without damaging the holes in the board is a problem that urgently needs to be overcome by those skilled in the art. Summary of the Invention

[0005] The main objective of this invention is to provide a fixture for electronic devices, which allows for the mounting of two electronic devices of different lengths, such as M.2 solid-state drives, Wi-Fi wireless network cards, 3G network cards, or circuit boards, within holes in a substrate, such as a circuit board. This overcomes the serious drawback of these electronic devices being unable to be installed due to their different lengths. The fixture provided by this invention, through a special spatial configuration, can accommodate two electronic devices of different lengths, thus allowing the fixture to adapt to two electronic devices of different lengths without damaging the holes in the substrate.

[0006] To achieve the aforementioned objectives, the present invention provides a fixture for an electronic device, comprising a positioning element and a clamping element; the positioning element includes a base with a raised step on top, and a first support recess formed at both ends of the base and the step for a positioning groove of a first electronic device to be accommodated; and a second support recess for a positioning groove of a second electronic device to be accommodated, wherein the outer peripheral surfaces of the step adjacent to the first and second support recesses each form a corresponding first and second positioning protrusion; the bottom surface of the base includes a plate fixing structure fixed in a plate hole in a plate in either a forward or reverse direction, wherein a first distance from the first support recess to the center of the plate fixing structure is less than a second distance from the second support recess to the center of the plate fixing structure, to accommodate the length difference between the first and second electronic devices; and the clamping element includes a clamping plate, the clamping plate having an axially connected engagement mechanism with the step, and the clamping plate closing the first and / or second support recesses to jointly clamp the positioning groove of the first or second electronic device.

[0007] In one embodiment, the docking mechanism includes a first insertion hole and a second insertion hole axially disposed on the step and spaced apart, wherein the first insertion hole is adjacent to the first support recess and the second insertion hole is adjacent to the second support recess; and the clamping piece is provided with a fixing pin axially protruding and selectively inserted into the first insertion hole or the second insertion hole.

[0008] In one embodiment, the fixing pin is provided with a snap-fit ​​structure including at least one snap groove and a snap ring on the adjacent peripheral surface of the first or second insertion hole.

[0009] In one embodiment, the docking mechanism includes a first insertion hole and a second insertion hole axially disposed on the step and spaced apart, wherein the first insertion hole is adjacent to the first support recess and the second insertion hole is adjacent to the second support recess; and a clamping piece is axially protruding and inserted into the first insertion hole and the second insertion hole, and is correspondingly disposed with a first fixing pin and a second fixing pin.

[0010] In one embodiment, a snap-fit ​​structure including at least one snap groove and a snap ring is provided between the first fixing pin and the first insertion hole and the adjacent peripheral surfaces of the second fixing pin and the second insertion hole.

[0011] In one embodiment, the docking mechanism includes an insertion hole axially disposed on the step; and a clamping plate is axially protruding and fitted into the insertion hole with a corresponding fixing pin.

[0012] In one embodiment, the adjacent peripheral surfaces of the fixing pin insertion hole are provided with a snap-fit ​​structure including at least one snap groove and a snap ring.

[0013] In one embodiment, a handle extends axially from the bottom surface of the clamping plate.

[0014] In one embodiment, the positioning member and the clamping member are connected by a connecting strip, and the two ends of the connecting strip are respectively connected to the base and the clamping plate.

[0015] In one embodiment, a thinned bending section is provided at the middle section of the connecting strip.

[0016] In one embodiment, the bottom surface of the base has a tenon protruding for fitting into the hole in the plate.

[0017] In one embodiment, the plate fixing structure includes an arrow-shaped fixing hook protruding from the bottom surface of the base, with an outwardly extending elastic hook piece. The free ends of the elastic hook piece are provided with multiple stepped teeth arranged in a stepped manner to fasten into plates of different thicknesses or plates with different diameters.

[0018] In one embodiment, a fixing protrusion is provided on the longitudinal surface of the fixing hook, so that the fixing hook and the fixing protrusion can be inserted into a cross-shaped plate hole. Attached Figure Description

[0019] To further disclose the specific technical content of the present invention, please first refer to the accompanying drawings, in which:

[0020] Figure 1 and Figure 2 These are two perspective views of the first embodiment of the fixator of the present invention from two different angles;

[0021] Figures 3 to 6 This is a flowchart illustrating the assembly of the first embodiment of the fastener, the first electronic device, and the plate material of the present invention.

[0022] Figure 7 for Figure 6 A cross-sectional view taken along line AA;

[0023] Figures 8 to 13 This is a flowchart illustrating the assembly of the first embodiment of the fastener, the second electronic device, and the plate material of the present invention.

[0024] Figure 14 for Figure 13 A cross-sectional view taken along line BB in the middle;

[0025] Figure 15 This is a comparative schematic diagram of the first embodiment of the fixture of the present invention, showing the plate and the first and second electronic devices assembled respectively;

[0026] Figure 16 and Figure 17 These are two perspective views of the second embodiment of the fixator of the present invention from two different angles;

[0027] Figure 18 This is a perspective view of the second embodiment of the fastener of the present invention, the first electronic device and the plate after assembly;

[0028] Figure 19 for Figure 18 A cross-sectional view taken along line CC;

[0029] Figure 20 This is a perspective view of the second embodiment of the fixture of the present invention, the second electronic device, and the plate after assembly;

[0030] Figure 21 for Figure 20 A cross-sectional view taken along line DD;

[0031] Figure 22 and Figure 23 These are perspective views of two different angles from the third embodiment of the fixation device of the present invention;

[0032] Figure 24 This is a perspective view of the third embodiment of the fastener of the present invention, after the first electronic device and the plate are assembled;

[0033] Figure 25 for Figure 24 A cross-sectional view taken along line EE;

[0034] Figure 26 This is a perspective view of the third embodiment of the fastener of the present invention, the second electronic device, and the assembled plate; and

[0035] Figure 27 for Figure 26 A cross-sectional view taken along line FF. Detailed Implementation

[0036] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the invention will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0037] like Figures 1 to 2 As shown, it discloses a first embodiment of a retainer 1 for two electronic devices with different length specifications, such as an M.2 solid-state drive, a Wi-Fi wireless network card, a 3G network card, or a circuit board. The retainer 1 includes a positioning member 11 injection molded from an insulating material, such as plastic, and a clamping member 12.

[0038] The positioning element 11 includes a geometric shape, such as an elliptical base 111. The base 111 has a raised step 13 on its upper surface. The step 13 has a first insertion hole 133a and a second insertion hole 133b spaced axially at intervals. A first support recess 112 and a second support recess 113 are formed opposite to each other at both ends of the step 13 and the base 111. The first support recess 112 provides a positioning groove 32 for a first electronic device 3, such as an M.2 solid-state drive (shown in...). Figure 4 The step 13, adjacent to the outer peripheral surface of the first support recess 112, forms a first positioning protrusion 131 for positioning the positioning groove 32. The second support recess 113 provides a positioning groove 32' for a second electronic device 3', such as an M.2 solid-state drive (shown in...). Figure 11 The step 13 is placed across the outer peripheral surface of the second support recess 113, and a second positioning protrusion 132 is formed for positioning the positioning groove 32'.

[0039] Furthermore, the step 13 and the clamping piece 121 of the clamping member 12 are engaged by a mating mechanism, such as at least one insertion hole 133 engaging with at least one corresponding fixing pin 122, making it difficult for the clamping member 12 to separate from the positioning member 11. Figure 1 As shown, the docking mechanism of step 13 includes a first insertion hole 133a and a second insertion hole 133b spaced apart. The first insertion hole 133a is adjacent to the first support recess 112, while the second insertion hole 133b is adjacent to the second support recess 113.

[0040] In addition, a tenon 14 protrudes from the bottom surface of the base 111 (shown in...). Figure 2 ), so as to fit into board material 2, such as the pre-set board hole 22 of the circuit board (shown in Figure 3 )Inside.

[0041] Furthermore, in order to ensure that the positioning element 11 can be fixed to the plate 2 (see...) Figures 3 to 4 The base 111 includes a plate fixing structure 15 on its bottom surface, which can be fixed to the plate 2 in either a forward or reverse direction. The plate fixing structure 15 includes an arrow-shaped fixing hook 151 protruding from the bottom of the base 111. The fixing hook 151 extends outward to an elastic hook piece 152. Multiple stepped teeth 153 are arranged in a stepped pattern opposite to the free end of the elastic hook piece 152 to allow it to engage with plates 2 of different thicknesses or with holes 22 of different diameters, thus expanding its applicability. At least one outer surface of the fixing hook 151 in the axial direction has a fixing protrusion 154 protruding from it. The fixing hook 151 and at least one fixing protrusion 154 can be inserted into a cross-shaped hole 22 (see [reference]). Figure 3 It is located inside and provides an anti-rotation effect through the tenon 14 and at least one fixing protrusion 154.

[0042] Furthermore, the first distance L1 from the center of the first support recess 112 to the plate fixing structure 15, such as the fixing hook 151, is less than the second distance L2 from the center of the second support recess 113 to the plate fixing structure 15, such as the fixing hook 151, in order to accommodate the length difference between the first electronic device 3 and the second electronic device 3'.

[0043] The clamping member 12 has a clamping piece 121, which axially includes a mating mechanism, such as a fixing pin 122 inserted into a first insertion hole 133a or a second insertion hole 133b. The fixing pin 122 and the adjacent peripheral surface of the first insertion hole 133a or the second insertion hole 133b are provided with a snap-fit ​​structure, such as at least one snap groove 123 and a snap ring 134 (shown in...). Figure 7 This allows the fixing pin 122 to be inserted into the first insertion hole 133a or the second insertion hole 133b, preventing axial dislodgement. The clamping piece 121 closes the first support recess 112 or the second support recess 113, thereby clamping the positioning groove 32 of the first electronic device 3 or the positioning groove 32' of the second electronic device 3', so that the first electronic device 3 or the second electronic device 3' achieves a stable positioning effect and prevents shaking.

[0044] The buckle structure is not limited to the aforementioned embodiments. It may also have at least one buckle groove provided in the first insertion hole 133a and the second insertion hole 133b, while the buckle ring is provided on the circumferential surface of the fixing pin 122.

[0045] Furthermore, a handle 124 extends axially from the bottom surface of the clamping piece 121. The handle 124 is preferably conical to facilitate the user's grip on the clamping piece 12 and its insertion into the positioning piece 11.

[0046] To enable the positioning element 11 and the clamping element 12 to be integrally formed, the positioning element 11 and the clamping element 12 are connected by a connecting strip 16, that is, the two ends of the connecting strip 16 are connected to the base 111 and the clamping piece 121 respectively; and to facilitate the bending of the connecting strip 16, a thin bending section 161 is provided at approximately the middle position of the connecting strip 16, so as to facilitate the bending of the connecting strip 16 toward the positioning element 11, and at the same time reduce the reaction force generated by the connecting strip 16.

[0047] Please see Figures 3 to 7 For details on mounting the first electronic device 3, such as an M.2 solid-state drive, onto the substrate 2, such as a printed circuit board, please refer to [link to relevant documentation]. Figure 3 First, align the fixing hook 151 and the elastic hook piece 152 of the plate fixing structure 15 of the positioning component 11 with the cross-shaped plate hole 22 of the plate 2 and insert them (shown in...). Figure 3The teeth 153 of the elastic hook 152 are engaged with the end edges of the wide slots of the plate hole 22, while at least one fixing protrusion 154 is inserted into the narrow slot of the plate hole 22. This prevents the positioning member 11 from causing incorrect installation, and the plate fixing structure 15 securely mounts the positioning member 11 to the plate 2 in the correct orientation (shown in...). Figure 4 ), so that the first support recess 112 faces the plate 2 and the preset electrical connector 21.

[0048] Next, the contact portion 31 at one end of the first electronic device 3 is inserted into the electrical connector 21 of the plate 2; and the positioning groove 32 at the other end is moved down and placed into the first support recess 112, so that the first positioning protrusion 131 is accommodated in the positioning groove 32, thereby forming the positioning of the other end of the first electronic device 3 (shown in...). Figure 4 and Figure 5 ).

[0049] Please see Figure 5 and Figure 6 Finally, the user's hands sequentially grasp the handle 124 of the clamping fastener 12 and bend the connecting strip 16 at the bending section 161. Then, the fixing pin 122 of the clamping piece 121 is inserted into the first insertion hole 133a on the top surface of the step 13, so that at least one of the latching grooves 123 of the fixing pin 122 is fastened into a latching ring 134 in the first insertion hole 133a. The clamping piece 121 and the first support recess 112 together clamp the positioning groove 32 of the first electronic device 3, so that the first electronic device 3 forms a firm positioning effect and prevents shaking, thereby ensuring the electrical connection between the first electronic device 3 and the plate 2.

[0050] like Figure 7 As shown, it displays along Figure 6 The cross-sectional view taken along the centerline AA is shown in detail, and a schematic diagram is provided showing the insertion of the fixing pin 122 into the first insertion hole 133a.

[0051] Please see Figures 8 to 14 If the first electronic device 3 is to be replaced with the second electronic device 3', since the length of the first electronic device 3 is approximately 2mm shorter than the length of the second electronic device 3', the second electronic device 3' cannot be mounted across the first support recess 112, thus failing to achieve the desired secure positioning. Therefore, the user must reverse the operation to remove the first electronic device 3 and the retainer 1 (shown in...). Figure 8 Then rotate the retainer 1 180 degrees (as shown in the image). Figure 9 Finally, the fastener 1 is installed in reverse order into the hole 22 of the plate 2 (as shown in the diagram). Figure 10 ), so that the second support recess 113 faces the electrical connector 21 opposite to the plate 2.

[0052] Next, the contact portion 31' at one end of the second electronic device 3' is inserted into the electrical connector 21 of the plate 2; and the positioning groove 32' at the other end is moved down and placed into the second support recess 113, so that the second positioning protrusion 132 is accommodated in the positioning groove 32', thereby forming the positioning of the other end of the second electronic device 3' (shown in...). Figure 11 and Figure 12 ).

[0053] Please see Figure 12 and Figure 13 Finally, the user holds the handle 124 of the clamping fastener 12 in sequence, bends the connecting strip 16 at the bending section 161, and then inserts the fixing pin 122 of the clamping piece 121 into the second insertion hole 133b on the top surface of the step 13, so that at least one of the latching grooves 123 of the fixing pin 122 is engaged in the buckle 134 in the second insertion hole 133b; the clamping piece 121 and the second support recess 113 together clamp the positioning groove 32' of the second electronic device 3', so that the second electronic device 3' forms a firm positioning effect, preventing shaking, and ensuring the electrical connection between the second electronic device 3' and the plate 2.

[0054] like Figure 14 As shown, it displays along Figure 13 The cross-sectional view taken along the center line BB is shown in detail, and a schematic diagram is disclosed showing the insertion of the fixing pin 122 into the second insertion hole 133b.

[0055] like Figure 15 As shown, it will Figure 7 The diagram shows the positioning groove 32 of the first electronic device 3 spanning within the first support recess 112, and the clamping piece 121 and the first support recess 112 together enclosing the positioning groove 32 of the first electronic device 3. L1 represents the first distance from the center of the first support recess 112 to the fixing hook 151; and... Figure 14 The diagram shows the positioning groove 32' of the second electronic device 3' spanning within the second support recess 113, with the clamping piece 121 and the second support recess 113 jointly enclosing the positioning groove 32' of the second electronic device 3'. L2 represents the second distance from the center of the second support recess 113 to the fixing hook 151, and this second distance L2 is greater than the first distance L1. Therefore, the second distance L2 minus the first distance L1 equals the length difference L3 between the first electronic device 3 and the second electronic device 3' (L2 – L1 = L3), thus confirming that the retainer 1 can be used for two electronic devices 3 and 3' with different length specifications.

[0056] like Figures 16 to 21As shown, a second embodiment of the fixation device is disclosed. In the second embodiment, the same reference numerals are used to indicate the same components as in the first embodiment. Since the second embodiment shares many common components with the first embodiment, only the differences between the two will be described in detail below.

[0057] The difference between this embodiment and the first embodiment is that the clamping piece 121 has a first fixing pin 122a and a second fixing pin 122b protruding from the first insertion hole 133a and the second insertion hole 133b, respectively. The first fixing pin 122a is inserted into the first insertion hole 133a, and the second fixing pin 122b is inserted into the second insertion hole 133b. Furthermore, the adjacent peripheral surfaces of the first fixing pin 122a and the first insertion hole 133a, and the second fixing pin 122b and the second insertion hole 133b, are provided with a snap-fit ​​structure, such as at least one snap groove 123 and a snap ring 134 (shown in…). Figure 19 and Figure 21 ).

[0058] in, Figure 18 A perspective view showing the second embodiment of the fixture 1 and the assembled first electronic device 3 and plate 2; Figure 19 for Figure 18 A cross-sectional view taken along line CC. Figure 20 A perspective view showing the second embodiment of the fixture 1, the second electronic device 3', and the assembled plate 2; Figure 21 for Figure 20 A cross-sectional view taken along line DD.

[0059] This design prevents the clamping device 12 from axially dislodging when the first fixing pin 122a is inserted into the first insertion hole 133a and the second fixing pin 122b is inserted into the second insertion hole 133b. Furthermore, the clamping piece 121 seals the first support recess 112 and the second support recess 113 together, thus clamping the positioning groove 32 of the first electronic device 3 (shown in…). Figure 18 and Figure 19 ) or the positioning groove 32' of the second electronic device 3' (shown in Figure 20 and Figure 21 This ensures that the first electronic device 3 or the second electronic device 3' achieves a stable positioning effect and does not cause shaking.

[0060] like Figures 22 to 27 As shown, a third embodiment of the fixation device is disclosed. Compared with the first embodiment, the same reference numerals are used to indicate the same components in the third embodiment. Since the third embodiment shares many common components with the first embodiment, only the differences between the two will be described in detail below.

[0061] The difference between this embodiment and the first embodiment is that the step 13 only has an insertion hole 133 in the axial direction, while the clamping piece 121 has a fixing pin 122 protruding from the insertion hole 133, and the fixing pin 122 is inserted into the insertion hole 133; and the fixing pin 122 and the adjacent peripheral surface of the insertion hole 133 are provided with a snap-fit ​​structure, such as at least one snap groove 123 and a snap ring 134 (shown in Figure 22 , Figure 25 ,and Figure 27 ).

[0062] in Figure 24 A perspective view showing the third embodiment of the fixture 1, the first electronic device 3 and the plate 2 after assembly; Figure 25 for Figure 24 A cross-sectional view taken along line EE. Figure 26 A perspective view showing the third embodiment of the fixture 1, the second electronic device 3', and the plate 2 after assembly; Figure 27 for Figure 26 A cross-sectional view taken along line FF.

[0063] This design prevents the clamping pin 12 from axially dislodging when it is inserted into the insertion hole 133, and uses the clamping piece 121 to seal the first support recess 112 and the second support recess 113 together, so as to jointly clamp the positioning groove 32 of the first electronic device 3 (shown in Figure 23 and Figure 24 ) or the positioning groove 32' of the second electronic device 3' (shown in Figure 25 and Figure 26 This ensures that the first electronic device 3 or the second electronic device 3' achieves a stable positioning effect and does not cause shaking.

[0064] Therefore, the benefit of implementing this application is that the fixture can fix two electronic devices of different lengths to a plate, such as a hole in a circuit board, by rotating the fixture. The length of the first support recess of the first electronic device or the second support recess of the second electronic device is aligned with the electrical connector of the plate. Through the mating structure between the clamping plate and the step, the clamping plate closes the first support recess and / or the second support recess to clamp the first electronic device or the second electronic device, so that the first electronic device or the second electronic device is positioned stably. This overcomes the serious defect that electronic devices of different lengths cannot be installed, and can be regarded as the preferred structure among fixtures.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fastener for an electronic device, comprising a positioning member and a clamping member; the positioning member comprising a base having a raised step on its upper surface, the base and the two ends of the step forming a first support recess for a positioning groove of a first electronic device to be accommodated; and a second support recess for a positioning groove of a second electronic device to be accommodated, the outer peripheral surfaces of the step adjacent to the first support recess and the second support recess respectively forming corresponding first positioning protrusions and second positioning protrusions; and the bottom surface of the base comprising a plate fixing structure fixed in a plate hole in a plate in a forward or reverse direction, wherein a first distance from the first support recess to the center of the plate fixing structure is less than a second distance from the second support recess to the center of the plate fixing structure, to accommodate the length difference between the first electronic device and the second electronic device; and the clamping member comprising a clamping member. The clamping plate has an axially connected docking mechanism with the step. The docking mechanism includes a first insertion hole and a second insertion hole axially disposed on the step and spaced apart. The first insertion hole is adjacent to the first support recess, and the second insertion hole is adjacent to the second support recess. The clamping plate has an axially protruding fixing pin that can be selectively inserted into the first insertion hole or the second insertion hole. The clamping plate is used to close the first support recess and / or the second support recess to jointly clamp the positioning groove of the first electronic device or the positioning groove of the second electronic device. The positioning member and the clamping member are connected by a connecting strip. One end of the connecting strip is connected to the vertical side of the first support recess and the second support recess disposed opposite to each other on the base, and the other end of the connecting strip is connected to the clamping plate.

2. The retainer for an electronic device according to claim 1, wherein the retaining pin is provided with a snap-fit ​​structure including at least one snap groove and a snap ring opposite to the adjacent peripheral surface of the first insertion hole or the second insertion hole.

3. A fastener for an electronic device, comprising a positioning member and a clamping member; the positioning member comprising a base having a raised step on its upper surface, the base and the two ends of the step forming a first support recess for a positioning groove of a first electronic device to be accommodated; and a second support recess for a positioning groove of a second electronic device to be accommodated, wherein the outer peripheral surfaces of the step adjacent to the first support recess and the second support recess respectively form corresponding first and second positioning protrusions; and the bottom surface of the base comprising a plate fixing structure for being fixed in a plate hole in a plate in a forward or reverse direction, wherein a first distance from the first support recess to the center of the plate fixing structure is less than a second distance from the second support recess to the center of the plate fixing structure, to accommodate the length difference between the first electronic device and the second electronic device; and the clamping member comprising a clamping piece, the clamping piece... The plate and the step are provided with a docking mechanism in the axial direction. The docking mechanism includes a first insertion hole and a second insertion hole that are axially provided on the step and spaced apart. The first insertion hole is adjacent to the first support recess, and the second insertion hole is adjacent to the second support recess. The clamping plate is provided with a first fixing pin and a second fixing pin that are axially protruding and inserted into the first insertion hole and the second insertion hole and are correspondingly provided. The clamping plate is used to close the first support recess and / or the second support recess to jointly clamp the positioning groove of the first electronic device or the positioning groove of the second electronic device. The positioning member and the clamping member are connected by a connecting strip. One end of the connecting strip is connected to the vertical side of the first support recess and the second support recess that are arranged opposite to each other on the base, and the other end of the connecting strip is connected to the clamping plate.

4. The retainer for an electronic device according to claim 3, wherein the first retaining pin and the first insertion hole and the second retaining pin and the second insertion hole are provided with a snap-fit ​​structure including at least one snap groove and a snap ring on their adjacent peripheral surfaces.

5. A fixture for an electronic device, comprising a positioning member and a clamping member; the positioning member comprising a base having a raised step on its upper surface, the base and the two ends of the step forming a first support recess for a positioning groove of a first electronic device to be positioned across; and a second support recess for a positioning groove of a second electronic device to be positioned across, the outer peripheral surfaces of the step adjacent to the first support recess and the second support recess respectively forming corresponding first positioning protrusions and second positioning protrusions; and the bottom surface of the base comprising a plate fixing structure fixed in a plate hole in a plate in a forward or reverse direction, wherein a first distance from the first support recess to the center of the plate fixing structure is less than a second distance from the second support recess to the center of the plate fixing structure, to accommodate the positioning groove of the first electronic device. The length difference between the first electronic device and the second electronic device; and the clamping fastener includes a clamping plate, the clamping plate and the step are axially provided with a docking mechanism, wherein the docking mechanism includes an insertion hole axially provided in the step; and the clamping plate is axially protruding and fitted into the insertion hole and correspondingly provided with a fixing pin; and the clamping plate is used to close the first support recess and / or the second support recess to jointly clamp the positioning groove of the first electronic device or the positioning groove of the second electronic device; wherein the positioning member and the clamping fastener are connected by a connecting strip, one end of the connecting strip is connected to the vertical side of the first support recess and the second support recess which are arranged opposite to each other on the base, and the other end of the connecting strip is connected to the clamping plate.

6. The retainer for an electronic device according to claim 5, wherein the retaining pin has a snap-fit ​​structure comprising at least one snap groove and a snap ring on the adjacent peripheral surface of the insertion hole.

7. The retainer for an electronic device according to claim 1, 3 or 5, wherein the bottom surface of the clamping piece extends axially into a handle.

8. The retainer for an electronic device according to claim 1, 3 or 5, wherein the connecting strip has a thinned bending section at the middle position.

9. The fixture for an electronic device according to claim 1, 3 or 5, wherein the bottom surface of the base protrudes with a tenon for fitting into the hole in the plate.

10. The fixture for an electronic device according to claim 1, 3 or 5, wherein the plate fixing structure includes an arrow-shaped fixing hook protruding from the bottom surface of the base, the fixing hook extending outward to a pair of elastic hook pieces, the free ends of the pair of elastic hook pieces being provided with a plurality of stepped teeth arranged opposite each other for fastening into the plate of different thicknesses or the plate hole of different diameters.

11. The retainer for an electronic device according to claim 10, wherein a retaining protrusion is provided on the longitudinal surface of the retaining hook, such that the retaining hook and the retaining protrusion can be inserted into the cross-shaped plate hole.

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