Buckling device for electronic card

Abstract

A buckling device used for an electronic card comprises a seat body arranged on a mainboard and a movable clamping piece, the seat body is provided with a blocking portion and a guiding portion, the movable clamping piece is provided with an elastic arm corresponding to the blocking portion and a guided portion combined with the guiding portion, and when the movable clamping piece is combined on the seat body, the elastic arm is clamped with the guided portion. The elastic action between the stopping part and the elastic arm is matched with the guiding action between the guiding part and the guided part, so that the movable clamping piece can perform elastic displacement between a clamping position and a releasing position on the seat body relative to a position for arranging an electronic card; therefore, the electronic card can be elastically clamped and released on the mainboard simply, conveniently and stably, so that the buckling device for the electronic card, which is simple in structure and convenient to assemble, is formed.

Description

Technical Field

[0001] The utility model relates to an electronic card fastening device, and in particular to an electronic card (such as a solid state hard disk) fastening structure with simple structure, convenient assembly and low production cost. Background Art

[0002] The traditional solid state drive (SSD) standard is the mSATA standard, but it is limited by the number of flash memories that can be arranged on the circuit board (PCB), resulting in a limited overall capacity. Therefore, the newer NGFF (Next Generation Form Factor; also known as M.2) standard suitable for solid state drives has emerged. Since the M.2 standard can arrange flash memory chips on both sides of the circuit board, it has a smaller size and higher capacity than the traditional mSATA standard, and also has the advantage of reducing costs.

[0003] Generally, M.2 standard SSDs have various lengths to choose from, and the computer motherboard is also designed to share SSDs of various lengths. In response to the need to fix SSDs of different lengths, screws and studs are currently mostly used to lock and fix M.2 standard SSDs on the computer motherboard; however, the combination of screws and studs is not only very inconvenient in assembly and disassembly, but also requires the embedding of studs on the computer motherboard for screw locking, which leads to increased costs.

[0004] In the invention case of Taiwan Patent Publication No. I568334, an assembly clip is disclosed, comprising: a bearing portion, a pivoting portion, a protruding portion and a pressing portion; the bearing portion has a bearing surface and a back surface opposite to each other. The pivoting portion and the protruding portion protrude from the back surface of the bearing portion and the bearing surface of the bearing portion, respectively, and extend along the axial direction of the pivoting portion. The pressing portion protrudes from one side of the protruding portion and extends along the radial direction of the pivoting portion, so that a locking groove is formed between the pressing portion and the bearing portion, and a release notch is provided next to the locking groove and is not covered by the pressing portion.

[0005] When the above structure is used, the assembly clip can insert the pivot part into the corresponding assembly hole on the computer motherboard according to the specifications of the solid state drive, and use a tool (such as a flat-blade screwdriver) to extend into the preset operating groove on the protruding part to rotate the protruding part of the assembly clip, so that the locking groove and the release notch located on the two opposite sides can be respectively oriented towards the solid state drive to form different states such as fixed or released; however, in actual application, this device must be operated in conjunction with a specific tool (a flat-blade screwdriver), and the operation method of rotating the protruding part is also more troublesome, and the effect of easy operation cannot be achieved.

[0006] A tool-free grounding quick-release device is disclosed in the utility model case of Chinese patent announcement CN 209390455U, which has a male buckle and a female buckle; the female buckle has a main body, the main body has an interference sleeve that can be inserted into a fixing hole on a circuit board, a clamping hole is recessed at the top of the interference sleeve, and a metal grounding buckle is combined on the peripheral side of the clamping hole; the male buckle has a pressing portion, a plug is protruding from the center of the pressing portion; and at least one bendable flexible connecting belt is provided between the pressing portion and the main body.

[0007] When in use, the plug of the male buckle is inserted into the card hole of the female buckle, and the pressing part can be used to press on the upper side of the notch on the edge of the M.2 card (solid state drive) to form grounding and positioning; this device not only has a complex overall structure, but also is difficult to process, and it is not economical to use it on low-priced components.

[0008] In addition, a fastening device combination is disclosed in the invention case of Chinese patent publication No. CN 109659727A, wherein the fastening device has a main body disposed on a circuit board, and at least one clamping member is accommodated inside the main body, and a clamping portion is concavely provided on one side of the clamping member, and a spring sheet or elastic member that can resist the clamping member is further provided inside the main body, so that the clamping member can maintain a stretchable and skew elasticity.

[0009] In actual application, the edge of the electronic card (SSD) can be directly pressed down from the top of the card holder, so that the card holder produces elastic compression and skew movements, and the clamping portion is clamped on the side of the notch at the edge of the electronic card (SSD) to form an easy-to-operate and stable positioning; however, the above-mentioned structure is relatively complex and difficult to assemble, and does not meet the economic benefits of low-priced components.

[0010] In view of the above-mentioned shortcomings of the conventional buckle positioning device of the electronic card (solid state hard disk) in practical application, the inventor has studied ways to improve these shortcomings, and finally produced the present utility model. Utility Model Content

[0011] The main purpose of the utility model is to provide a fastening device for an electronic card, comprising: a base body arranged on a motherboard and a movable fastening member combined with the base body, a stopper, an elastic arm and a guide portion relative to the stopper, and a guided portion corresponding to the guide portion are arranged between the base body and the movable fastening member; the guided portion can be combined with the guide portion, so that the movable fastening member can be elastically displaced between a fastening position and a release position relative to a position for setting the electronic card on the base body When the movable card part is acted upon by an external force and moves from the initial locking position toward the releasing position, the movable card part can be moved out of the position of locking the electronic card, and the elastic arm can be acted upon by the stopping portion to produce elastic deformation and accumulate elastic restoring force; when the external force acting on the movable card part is released, the elastic arm can, through the action of the above-mentioned elastic restoring force, move the movable card part back from the releasing position to the locking position of locking the electronic card, thereby forming a buckling device for electronic cards with a simple structure and convenient assembly.

[0012] Another object of the utility model is to provide a fastening device for an electronic card, wherein a guiding slope is provided on a side surface of the stopping portion facing the elastic arm, so that the elastic arm is blocked and generates the above-mentioned elastic restoring force. At the same time, due to the action of the guiding slope, the guided portion can generate a force in a direction perpendicular to the displacement path of the guiding portion, so as to eliminate the combined gap between the guiding portion and the guided portion, and avoid looseness between the base body and the movable card component to affect the card holding effect of the electronic card.

[0013] In order to achieve the above-mentioned purpose and effect, the technical means implemented by the utility model include: a fastening device for an electronic card, comprising: a base body arranged on a motherboard and an active fastening member combined with the base body, a stopper, an elastic arm and a guide portion relative to the stopper, and a guided portion corresponding to the guide portion are arranged between the base body and the active fastening member; the guided portion can be combined with the guide portion, so that the active fastening member can be elastically displaced between a fastening position and a release position on the base body relative to a position for setting the electronic card, and the elastic arm and a guide portion can be elastically displaced between a fastening position and a release position. The arm is arranged on one of the base and the movable locking part, and the stopping portion is arranged on the other of the base and the movable locking part; when the movable locking part is acted upon by an external force and moves from the initial locking position toward the releasing position, the movable locking part can be moved out of the position of locking the electronic card, and the elastic arm is acted upon by the stopping portion to generate elastic deformation and accumulate elastic restoring force; when the external force acting on the movable locking part is released, the elastic arm can, by virtue of the above-mentioned elastic restoring force, move the movable locking part back from the releasing position to the locking position of locking the electronic card.

[0014] According to the above structure, a guiding slope is provided on a side surface of the stopper facing the elastic arm.

[0015] According to the above structure, the movable clamping part has a receiving space that can accommodate the elastic arm and the stopping part, the guided part is an elongated hollow guide groove arranged beside the receiving space, and the elongated hollow guide groove extends along the elastic displacement direction of the movable clamping part relative to the seat body; and the guiding part is an elastic sheet arranged on the side of the seat body corresponding to the elongated hollow guide groove, and the elastic sheet is provided with a hook part protruding into the elongated hollow guide groove; the elongated hollow guide groove can produce displacement guiding and displacement stroke limiting effects on the hook part, so that the movable clamping part can be combined on the seat body and form guidance and limitation of the elastic displacement path.

[0016] According to the above structure, the base body has a receiving space that can accommodate the stopping part and the elastic arm, and the guiding part has an elongated side extension part arranged beside the receiving space, and the side extension part extends along the elastic displacement direction of the above-mentioned movable clamping part relative to the base body, and a vertically protruding protrusion is provided in the middle section of the side extension part; and the guided part has a transverse guide groove arranged on the side of the movable clamping part corresponding to the side extension part, and the transverse guide groove accommodates the side extension part, and a vertically extending lower notch is provided on the transverse guide groove, and the lower notch accommodates the protrusion, and the width of the lower notch is greater than the protrusion; the transverse guide groove guides the displacement of the side extension part, and cooperates with the lower notch to limit the displacement stroke of the protrusion, so that the movable clamping part can be standardizedly combined on the base body, and form guidance and limitation of the elastic displacement path.

[0017] According to the above structure, the two ends of the electronic card are respectively provided with a card end and an electrical connection end, the electrical connection end can form an electrical connection with a terminal seat arranged on the main board, and a positioning notch is arranged on the edge of the card end; the movable card component is provided with a positioning protrusion corresponding to the positioning notch toward the electronic card, and a pressing part protruding toward the electronic card is provided above the positioning protrusion, and the pressing part is provided with an inclined surface toward the positioning notch of the electronic card. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the above-mentioned purpose, effect and feature of the utility model more specifically understood, the following description is made with reference to the following drawings:

[0019] [ Figure 1 ] is a three-dimensional exploded view of the first embodiment of the utility model.

[0020] [ Figure 2 ] is a combined appearance diagram of the first embodiment of the utility model.

[0021] [ Figure 3 ]Tie Figure 2 Cross-section along the AA direction.

[0022] [ Figure 4] is a schematic diagram (I) of the application scenario of the first embodiment of the utility model, which reveals the state of the electronic card before it is locked and positioned by the movable card component.

[0023] [ Figure 5 ] is a schematic diagram (II) of the application scenario of the first embodiment of the utility model, which discloses the state of the movable card component moving when the electronic card is assembled.

[0024] [ Figure 6 ] is a schematic diagram (three) of the application scenario of the first embodiment of the utility model, which reveals the state in which the electronic card is positioned by the movable card component.

[0025] [ Figure 7 ] is a schematic diagram (IV) of the application scenario of the first embodiment of the utility model, which reveals the state in which the movable card component releases the locking position of the electronic card.

[0026] [ Figure 8 ] is a three-dimensional exploded view of the second embodiment of the utility model.

[0027] [ Fig. 9 ] is a combined appearance diagram of the second embodiment of the utility model.

[0028] [ Fig.10 ]Tie Fig. 9 A front plan view along the movable direction of the movable clamping member.

[0029] [ Fig.11 ] is a schematic diagram (I) of the application scenario of the second embodiment of the utility model, which reveals the state of the electronic card before it is locked and positioned by the movable card component.

[0030] [ Fig.12 ] is a schematic diagram (II) of the application scenario of the second embodiment of the utility model, which discloses the state of the movable card member moving when the electronic card is assembled.

[0031] [ Fig.13 ] is a schematic diagram (three) of the application scenario of the second embodiment of the utility model, which reveals the state in which the electronic card is positioned by the movable card component.

[0032] [ Fig.14 ] is a schematic diagram (IV) of the application scenario of the second embodiment of the utility model, which reveals the state in which the movable card component releases the locking position of the electronic card.

[0033] Description of symbols in the accompanying drawings:

[0034] 1,10: base body

[0035] 11: Stopper

[0036] 111: Guide slope

[0037] 12,13: Guide

[0038] 121: Elastic sheet

[0039] 122:Hook

[0040] 131: protrusion

[0041] 132: Side extension

[0042] 14,24: Containment Space

[0043] 2,20:Active card parts

[0044] 200: Card position

[0045] 201: Release position

[0046] 21: Elastic arm

[0047] 22,25: guided part

[0048] 220: Long hollow guide groove

[0049] 23: Positioning the convex part

[0050] 231: Suppression Department

[0051] 232: Incline

[0052] 251: Lower gap

[0053] 252: Transverse guide groove

[0054] 3: Electronic card

[0055] 30: Motherboard

[0056] 31: Card end

[0057] 310: Positioning gap

[0058] 32: Electrical connection terminal

[0059] 40: Terminal block DETAILED DESCRIPTION

[0060] Please refer to Figures 1 to 7 As shown, the structure of the first embodiment of the utility model includes: a base 1 and a movable card member 2. The base 1 can be fixedly assembled on a motherboard 30 for setting the side of the electronic card 3 (which can be a solid state drive) by bonding, welding or connecting with other elements. A stopper 11 and a guide portion 12 are provided on the base 1.

[0061] The movable clamping member 2 is assembled on the base 1 and has a guided portion 22. The guided portion 22 can be assembled with the guiding portion 12, and the movable clamping member 2 can be formed at a clamping position 200 (such as 200) on the base 1 relative to the electronic card 3. Figure 4 , Figure 6 ) and a release position 201 (as shown Figure 7 The movable clamping member 2 is provided with an elastic arm 21 corresponding to the stopping portion 11 toward the base body 1, and the stopping portion 11 is located on the displacement path of the elastic arm 21 as the movable clamping member 2 is elastically displaced, and a guide slope 111 is provided on a side surface of the stopping portion 11 toward the elastic arm 21.

[0062] In this embodiment, when the movable clamping component 2 is assembled on the base body 1, a receiving space 24 that can accommodate the elastic arm 21 and the stopping portion 11 is formed between the movable clamping component 2 and the base body 1, and the guided portion 22 is an elongated hollow guide groove 220 arranged in the middle section of both sides of the receiving space 24, and the elongated hollow guide groove 220 extends along the elastic displacement direction of the above-mentioned movable clamping component 2 relative to the base body 1.

[0063] The guide portion 12 can be an elastic sheet 121 arranged on the side of the seat body 1 corresponding to the elongated hollow guide groove 220, and a hook portion 122 protruding into the elongated hollow guide groove 220 is provided on the elastic sheet 121; the elongated hollow guide groove 220 is utilized to guide the displacement direction and limit the movable stroke of the hook portion 122, so that the movable clamping component 2 is standardizedly assembled on the seat body 1, and the guidance and limitation of the elastic displacement path are formed.

[0064] In the above structure, a positioning notch 310 is provided on the edge of a card end 31 of the electronic card 3, and the movable card member 2 is provided with a positioning protrusion 23 corresponding to the positioning notch 310 in the direction toward the electronic card 3, and a pressing portion 231 protruding toward the electronic card 3 is provided above the positioning protrusion 23, and the pressing portion 231 is provided with a slope 232 in the direction in which the electronic card 3 is pressed (towards the positioning notch 310 of the electronic card 3).

[0065] In actual application, if the electronic card 3 is to be assembled, the electrical connection end 32 of the electronic card 3 with the pin can be plugged into a terminal seat 40. At this time, the locking end 31 of the electronic card 3 with the positioning notch 310 remains in an elastic upward state, and the movable locking member 2 is located at the initial locking position 200 (such as the initial locking position 200) where the electronic card 3 is not locked. Figure 4The user can directly press down the electronic card 3, so that the locking end 31 gradually contacts the inclined surface 232 and slides downward, and at the same time, the inclined surface 232 is used to link the movable locking member 2 to move away from the electronic card 3 toward the release position 201, so that the positioning protrusion 23 and the pressing portion 231 of the movable locking member 2 are moved to a position close to the locking end 31 of the electronic card 3 or the end edge of the positioning notch 310 (as shown in FIG. Figure 5 shown).

[0066] During the above-mentioned gradual displacement process, the elastic arm 21 is gradually blocked and pushed by the guiding inclined surface 111 of the stopping portion 11, thereby generating elastic bending and accumulating elastic restoring force that can restore to the initial clamping position 200, and the elongated hollow guide groove 220 of the guided portion 22 is restricted to be displaced in the direction allowed by the hook portion 122 of the guiding portion 12, that is, it can only be displaced along the displacement path between the clamping position 200 and the release position 201 relative to the electronic card 3, and the vertical elastic force generated by the elastic arm 21 being blocked by the guiding inclined surface 111 of the stopping portion 11 can provide a lateral abutment effect between the elongated hollow guide groove 220 and the hook portion 122, thereby effectively eliminating the looseness therebetween.

[0067] When the electronic card 3 continues to press downwards, the movable engaging member 2 is displaced relative to the base 1 until the positioning notch 310 is engaged by the positioning protrusion 23, and the elastic restoring force of the elastic arm 21 enables the movable engaging member 2 to be displaced in the direction of returning to the initial engaging position 200, and the pressing portion 231 is stopped at the upper portion of the end edge of the positioning notch 310 (such as Figure 6 As shown in the figure, the edge of one end of the electronic card 3 having the positioning notch 310 cannot be loosened from the clamping of the pressing portion 231 and is in a positioned state. At this time, the positioning protrusion 23 is embedded in the positioning notch 310, which can provide lateral stability for the electronic card 3 and avoid unexpected lateral deviation causing electrical connection errors at the electrical connection end 32.

[0068] On the contrary, if the assembled electronic card 3 is to be disassembled, an external force can be applied to the movable clamping member 2 to move the movable clamping member 2 from the clamping position 200 toward the releasing position 201, and the positioning protrusion 23 and the pressing portion 231 move out of the position of clamping the positioning notch 310 of the electronic card 3. The electronic card 3 applies the elasticity of the electrical connection end 32 through the terminal seat 40, so that the clamping end 31 with the positioning notch 310 can be tilted upward to a position that is easy to disassemble (such as Figure 7 shown).

[0069] It should be noted that the stopper 11 can also be disposed on the movable clamping member 2 as required, and the elastic arm 21 can be disposed at a corresponding position on the base 1 , and the same effect can be achieved in practical applications.

[0070] Please refer to Figures 8 to 14 As shown, the structure of the second embodiment of the utility model includes: a base 10 and a movable clamping member 20. The base 10 can be fixedly assembled on a motherboard 30 for setting the side of the electronic card 3 by bonding, welding or connecting with other elements. A stopper 11 and a guide portion 13 are provided on the base 10.

[0071] The movable clamping member 20 is assembled on the base 10. The movable clamping member 20 has a guided portion 25. The guided portion 25 can be assembled with the guiding portion 13 to form a clamping position 200 (such as 200) on the base 10 relative to the electronic card 3. Fig.11 and Fig.13 ) and a release position 201 (as shown Fig.14 The elastic displacement path between the movable card member 20 and the seat body 10 is shown in the figure, and an elastic arm 21 corresponding to the stopping portion 11 is provided on the movable card member 20 toward the seat body 10, and the stopping portion 11 is located on the displacement path of the elastic arm 21 as the movable card member 20 performs elastic displacement; and a guide slope 111 is provided on the side surface of the stopping portion 11 facing the elastic arm 21, and a positioning protrusion 23 corresponding to the positioning notch 310 is provided on the side of the movable card member 20 facing the electronic card 3, a protruding pressing portion 231 is provided above the positioning protrusion 23, and the pressing portion 231 is provided with an inclined surface 232 in the direction in which the electronic card 3 is pressed into (towards the positioning notch 310 of the electronic card 3).

[0072] In this embodiment, the base body 10 has a receiving space 14 that can accommodate the stopping portion 11. When the movable clamping member 20 is assembled on the base body 10, the receiving space 14 can also accommodate the elastic arm 21 at the same time; the guide portion 13 has an elongated side extension portion 132 arranged on both sides of the receiving space 14, and the two side extension portions 132 extend along the elastic displacement direction of the above-mentioned movable clamping member 20 relative to the base body 10, and a vertically protruding protrusion 131 is respectively provided in the middle section of the two side extension portions 132.

[0073] The guided portion 25 has transverse guide grooves 252 arranged on both sides of the movable clamping member 20 corresponding to the side extension portions 132. The two transverse guide grooves 252 respectively accommodate the two side extension portions 132. The two transverse guide grooves 252 are respectively provided with vertically extending lower notches 251. The lower notches 251 accommodate the protruding portions 131, and the width of the lower notches 251 is larger than the protruding portions 131. The two transverse guide grooves 252 can form movable guides for the two side extension portions 132. The lower notches 251 cooperate with each other to limit the movable travel of the protruding portions 131, so that the movable clamping member 20 can be standardizedly assembled on the base body 10, and the guidance and restriction of the elastic displacement path can be formed.

[0074] In actual application, if the electronic card 3 is to be assembled, the electrical connection end 32 of the electronic card 3 with the pin can be plugged into a terminal seat 40. At this time, the locking end 31 of the electronic card 3 with the positioning notch 310 remains in an elastic upward state, and the movable locking member 20 is located at the initial locking position 200 (such as the initial locking position 200) where the electronic card 3 is not locked. Fig.11 The user can directly press down the electronic card 3, so that the locking end 31 gradually contacts the inclined surface 232 and slides downward, and at the same time, the inclined surface 232 is used to link the movable locking member 20 to move away from the electronic card 3 toward the release position 201, so that the positioning protrusion 23 and the pressing portion 231 of the movable locking member 20 are moved to a position close to the locking end 31 of the electronic card 3 or the end edge of the positioning notch 310 (as shown in FIG. Fig.12 shown).

[0075] During the above-mentioned gradual displacement process, the elastic arm 21 is gradually blocked and pushed by the guiding inclined surface 111 of the stopping portion 11, thereby generating elastic bending and accumulating elastic restoring force that can be restored to the initial clamping position 200, and the transverse guide groove 252 of the guided portion 25 is restricted to be displaced in the direction allowed by the side extension portion 132 of the guiding portion 13, that is, it can only be displaced along the displacement path between the clamping position 200 and the release position 201 relative to the electronic card 3, and the vertical elastic force generated by the elastic arm 21 being blocked by the guiding inclined surface 111 of the stopping portion 11 can provide a lateral abutment effect between the transverse guide groove 252 and the side extension portion 132, thereby effectively eliminating the looseness therebetween.

[0076] When the electronic card 3 continues to press downwards, the movable clamping member 20 is displaced relative to the base 10 until the positioning notch 310 is embedded by the positioning protrusion 23, the elastic restoring force of the elastic arm 21 can cause the movable clamping member 20 to move in the direction of returning to the initial clamping position 200, so that the pressing portion 231 is stopped at the upper part of the end edge of the positioning notch 310 (such as Fig.13 As shown in the figure, the edge of one end of the electronic card 3 having the positioning notch 310 cannot be loosened from the clamping of the pressing portion 231 and is in a positioned state. At this time, the positioning protrusion 23 is embedded in the positioning notch 310, which can provide lateral stability for the electronic card 3 and avoid unexpected lateral deviation causing electrical connection errors at the electrical connection end 32.

[0077] On the contrary, if the assembled electronic card 3 is to be disassembled, an external force can be applied to the movable clamping member 20 to move the movable clamping member 20 from the clamping position 200 toward the releasing position 201, and the positioning protrusion 23 and the pressing portion 231 are moved out of the position of clamping the positioning notch 310 of the electronic card 3. The electronic card 3 applies the elasticity of the electrical connection end 32 through the terminal seat 40, so that the clamping end 31 with the positioning notch 310 can be tilted upward to a position that is easy to disassemble (such as Fig.14 shown).

[0078] It should be noted that the stopper 11 can also be disposed on the movable clamping member 20 as required, and the elastic arm 21 can be disposed at a corresponding position on the base 10 , and the same effect can be achieved in practical applications.

[0079] In summary, the buckling device for electronic cards of the utility model can indeed achieve the effects of simplifying the structure, facilitating assembly and reducing production costs. It is indeed a novel and progressive utility model, and a utility model patent application is filed in accordance with the law; however, the content of the above description is only a description of the preferred embodiment of the utility model, and all changes, modifications, alterations or equivalent substitutions extended from the technical means and scope of the utility model should also fall within the scope of the patent application of the utility model.

Claims

1. A fastening device for an electronic card, characterized in that: The buckling device for electronic card comprises: a seat body arranged on the main board and an active clamping piece combined with the seat body, a stopper, an elastic arm relative to the stopper, a guide part, and a guided part corresponding to the guide part are arranged between the seat body and the active clamping piece; the guided part can be combined with the guide part, so that the active clamping piece can be elastically displaced between a clamping position and a release position on the seat body relative to a position for setting the electronic card, and the elastic arm is arranged between the seat body and the active clamping piece. One of the base and the stopping portion is arranged on the other one of the base and the movable locking piece; when the movable locking piece is acted upon by an external force and moves from the initial locking position toward the releasing position, the movable locking piece can be moved out of the position of locking the electronic card, and the elastic arm can be acted upon by the stopping portion to produce elastic deformation and accumulate elastic restoring force; when the external force acting on the movable locking piece is released, the elastic arm can, through the action of the above-mentioned elastic restoring force, move the movable locking piece back from the releasing position to the locking position of locking the electronic card.

2. The fastening device for an electronic card according to claim 1, characterized in that: A guiding inclined surface is disposed on a side surface of the stopper facing the elastic arm.

3. The fastening device for an electronic card according to claim 1 or 2, characterized in that: The movable locking part has a receiving space that can accommodate the elastic arm and the stopping part, the guided part is an elongated hollow guide groove arranged beside the receiving space, and the elongated hollow guide groove is extended along the elastic displacement direction of the movable locking part relative to the seat body; and the guiding part is an elastic sheet arranged beside the seat body corresponding to the elongated hollow guide groove, and the elastic sheet is provided with a hook part protruding into the elongated hollow guide groove; the elongated hollow guide groove can produce displacement guiding and displacement stroke limiting effects on the hook part, so that the movable locking part can be combined on the seat body and form guidance and limitation of the elastic displacement path.

4. The fastening device for an electronic card according to claim 1 or 2, characterized in that: The seat body has a receiving space that can accommodate the stopping portion and the elastic arm, and the guiding portion has an elongated side extension portion arranged beside the receiving space, and the side extension portion extends along the elastic displacement direction of the above-mentioned movable clamping part relative to the seat body, and a vertically protruding protrusion portion is provided in the middle section of the side extension portion; and the guided portion has a transverse guide groove arranged beside the movable clamping part and corresponding to the side extension portion, and the transverse guide groove accommodates the side extension portion, and a vertically extending lower notch is provided on the transverse guide groove, and the lower notch accommodates the protrusion portion, and the width of the lower notch is greater than the protrusion portion; the transverse guide groove is used to guide the displacement of the side extension portion, and the lower notch is used to limit the displacement stroke of the protrusion portion, so that the movable clamping part can be standardizedly combined on the seat body, and the guidance and restriction of the elastic displacement path are formed.

5. The fastening device for an electronic card according to claim 1 or 2, characterized in that: The two ends of the electronic card are respectively provided with a card end and an electrical connection end, the electrical connection end can form an electrical connection with a terminal seat arranged on the main board, and a positioning notch is arranged on the edge of the card end; the movable card component is provided with a positioning protrusion corresponding to the positioning notch toward the direction of the electronic card, and a pressing part protruding toward the direction of the electronic card is provided above the positioning protrusion, and the pressing part is provided with an inclined surface toward the positioning notch of the electronic card.

6. The fastening device for an electronic card according to claim 3, characterized in that: The two ends of the electronic card are respectively provided with a card end and an electrical connection end, the electrical connection end can form an electrical connection with a terminal seat arranged on the main board, and a positioning notch is arranged on the edge of the card end; the movable card component is provided with a positioning protrusion corresponding to the positioning notch toward the direction of the electronic card, and a pressing part protruding toward the direction of the electronic card is provided above the positioning protrusion, and the pressing part is provided with an inclined surface toward the positioning notch of the electronic card.

7. The fastening device for an electronic card according to claim 4, characterized in that: The two ends of the electronic card are respectively provided with a card end and an electrical connection end, the electrical connection end can form an electrical connection with a terminal seat arranged on the main board, and a positioning notch is arranged on the edge of the card end; the movable card component is provided with a positioning protrusion corresponding to the positioning notch toward the direction of the electronic card, and a pressing part protruding toward the direction of the electronic card is provided above the positioning protrusion, and the pressing part is provided with an inclined surface toward the positioning notch of the electronic card.

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