Floating fastening mechanism and case
By designing a floating fastening mechanism, using the cooperation of the floating frame and elastic parts, the stability of the chassis for electronic components on the motherboards of different thickness specifications is solved, and flexible adjustment of the height position and stable locking are achieved, which enhances the adaptability of the chassis and stability.
Patent Information
- Application Number
- CN202421009698.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-10
AI Technical Summary
It is difficult for existing server chassis to firmly fasten electronic components on motherboards of different thickness specifications, resulting in inconvenient changes in the height position of electronic components.
Design a floating fastener mechanism, including a floating fastener and a positioner, which has a floating frame, an internal thread and an elastic member, which is matched with the long through hole of the housing through the internal thread, and maintains floating tightening with the elastic member. The floating of the piece between the initial position and the multiple floating positions ensures a solid locking of the electronic component.
It realizes the firm and fastening of electronic components on motherboards with different thickness specifications, and adjusts the height position to adapt to changes in motherboard thickness specifications, enhancing the adaptability and stability of the chassis.
Smart Images
Figure CN222319398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a floating fastening mechanism, in particular to a floating fastening mechanism and a chassis for fastening electronic components. Background Art
[0002] In order to meet the new form factor specifications, the chassis of existing servers must meet the requirements of electronic components being fixedly installed on motherboards of different specifications. For example, when the thickness specifications of the motherboard are different, the height position of the connector installed on the motherboard and the electronic components plugged into the connector will change accordingly. Therefore, how to securely fasten the electronic components in the chassis has become a problem to be overcome. Utility Model Content
[0003] Therefore, one object of the present invention is to provide a floating fastening mechanism that can overcome at least one disadvantage of the background art.
[0004] The purpose of the utility model and the background technical problem to be solved are achieved by adopting the following technical solutions. The floating fastening mechanism proposed by the utility model is suitable for being arranged in a casing to fasten electronic components.
[0005] The floating fastening mechanism includes a floating fastener and a positioning member. The floating fastener has a floating frame and an internal thread arranged on the floating frame. The floating frame is arranged on the casing and can be operated to float relative to the casing in a predetermined direction. The internal thread is used to lock the corresponding external thread of the electronic component, and the positioning member is used to position the floating frame in the casing.
[0006] The floating fastening mechanism of the utility model comprises a floating frame having a vertical plate abutting against the casing and a circular ring protruding from the vertical plate, wherein the internal thread is formed on the vertical plate and the circular ring and together with the vertical plate and the circular ring constitutes a screw hole for the external thread member to pass through.
[0007] The utility model discloses a floating fastening mechanism, wherein the floating frame is formed with a floating groove which is in the shape of a long groove and whose long direction extends along the predetermined direction, the floating groove is for the positioning member to pass through and can be guided by the positioning member to float along the predetermined direction, and the positioning member has a stopping section which stops the floating frame to prevent the floating frame from detaching from the casing.
[0008] The floating fastening mechanism of the utility model, the floating fastener also has two side plates respectively connected to the opposite sides of the floating frame, the side plates are spaced apart along a transverse direction perpendicular to the predetermined direction, each of the side plates is in the shape of a long plate and its length extends along the predetermined direction and can be blocked by the casing in the transverse direction.
[0009] In the floating fastening mechanism of the utility model, the floating fastener further comprises an end plate connected to the floating frame.
[0010] In the floating fastening mechanism of the utility model, the floating frame is formed with a vent hole.
[0011] In the floating fastening mechanism of the utility model, the positioning member is a rivet riveted to the casing by pressure riveting.
[0012] The floating fastening mechanism of the utility model is configured such that the floating fastener can float at least between an initial position and a floating position. The floating fastening mechanism also includes an elastic member, which is used to fix the floating fastener to keep it in the initial position.
[0013] The floating fastening mechanism of the utility model is configured to float between an initial position, a first floating position and a second floating position respectively located on opposite sides of the initial position along the predetermined direction. The floating fastening mechanism also includes an elastic member, which is used to hold the floating fastener to keep it in the initial position.
[0014] The floating fastening mechanism of the utility model, the elastic member is a torsion spring and has a ring mounted on the positioning member, a first elastic arm connected to the ring, and a second elastic arm connected to the ring and opposite to the first elastic arm, the first elastic arm is connected to the floating fastener, and the second elastic arm abuts against the casing.
[0015] The floating fastening mechanism of the utility model, the floating fastener also has a connecting plate connected to the floating frame, the connecting plate is formed with a through hole, the first elastic arm has a first arm section connected to the ring and extending along the predetermined direction, and a second arm section extending from an end of the first arm section opposite to the ring along a horizontal direction perpendicular to the predetermined direction and passing through the through hole.
[0016] The floating fastening mechanism of the utility model, the floating fastener also has two side plates respectively connected to the opposite sides of the floating frame, the side plates are spaced apart along the horizontal direction, each of the side plates is in the shape of a long plate and its length extends along the predetermined direction and can be stopped by the casing in the horizontal direction, the first elastic arm also has a third arm segment extending from an end of the second arm segment opposite to the first arm segment along the predetermined direction, the third arm segment is between the connecting plate and the corresponding side plate and abuts against the corresponding side plate.
[0017] The floating fastening mechanism of the utility model is characterized in that the positioning member is a rivet riveted to the casing by pressure riveting, the positioning member comprises a riveting section, a rest section, a first stop section and a second stop section, the riveting section is riveted to the casing, the rest section is connected to one end of the riveting section, the rest section has an outer diameter greater than the outer diameter of the riveting section and rests against the casing, the first stop section is connected to an end of the rest section opposite to the riveting section, the first stop section has an outer diameter greater than the outer diameter of the rest section, the second stop section is connected to an end of the first stop section opposite to the rest section, the second stop section has an outer diameter greater than the outer diameter of the first stop section, the floating frame is formed with a floating groove for the rest section to pass through, the floating groove is in the shape of a long groove and its length extends along the predetermined direction, the floating frame is stopped by the first stop section, the collar is sleeved on the first stop section and stopped by the second stop section.
[0018] Another object of the present invention is to provide a chassis that can overcome at least one disadvantage of the background art.
[0019] The purpose of the utility model and the background technical problem to be solved are achieved by adopting the following technical scheme. The chassis proposed by the utility model is suitable for inserting electronic components.
[0020] The chassis includes a housing and the floating fastening mechanism as described above. The housing is formed with a long through hole, the long through hole extends along the predetermined direction, and the long through hole is relatively positioned with the internal thread for the external thread member to pass through.
[0021] The chassis of the utility model is further provided with an opening for riveting the positioning piece.
[0022] The beneficial effect of the utility model is that, by means of the design of the floating fastening mechanism, when motherboards of different thickness specifications are arranged in the housing, the floating fastening mechanism can firmly fasten the electronic components whose height positions change in accordance with the thickness specifications of the motherboard. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is an incomplete three-dimensional diagram of a first embodiment of the chassis of the utility model installed in an electronic device;
[0024] Figure 2 is an incomplete three-dimensional exploded view of the first embodiment of the present invention disposed in an electronic device, illustrating the assembly relationship between the chassis and an electronic component;
[0025] Figure 3 is an incomplete rear view of the first embodiment, illustrating the assembly relationship between a housing and a floating fastening mechanism, and a floating fastener is located in an initial position;
[0026] Figure 4 is a fragmentary front view of the first embodiment, illustrating the floating fastener in an initial position;
[0027] Figure 5 is along Figure 3 A cross-sectional view taken along the V-V line in FIG.
[0028] Figure 6 is an incomplete three-dimensional exploded view of the first embodiment, illustrating the assembly relationship between the housing and the floating fastening mechanism;
[0029] Figure 7 is an incomplete three-dimensional exploded view of the first embodiment viewed from another viewing angle;
[0030] Figure 8 is a three-dimensional diagram of an assembly of a floating fastener and an elastic member of the first embodiment;
[0031] Fig. 9 This is a front view of an assembly of the floating fastener and the elastic member of the first embodiment;
[0032] Fig.10 is along Figure 1 An incomplete cross-sectional view taken by the X-X line in FIG.
[0033] Fig.11 is a fragmentary rear view of the first embodiment, illustrating that the floating fastener is located in a first floating position;
[0034] Fig.12 is a fragmentary front view of the first embodiment, illustrating that the floating fastener is in a first floating position;
[0035] Fig.13 is a fragmentary rear view of the first embodiment, illustrating that the floating fastener is located in a second floating position;
[0036] Fig.14 is a fragmentary front view of the first embodiment, illustrating the floating fastener in a second floating position; and
[0037] Fig.15 It is an incomplete front view of a second embodiment of the chassis of the present invention. DETAILED DESCRIPTION
[0038] The utility model is described in detail below with reference to the accompanying drawings and embodiments.
[0039] Before the present invention is described in detail, it should be noted that similar elements are represented by the same reference numerals in the following description.
[0040] See also Figure 1 and Figure 2A first embodiment of the chassis 200 of the utility model is suitable for being set in an electronic device 100. The electronic device 100 is taken as an example of a server but is not limited thereto. The electronic device 100 may also be a computer or a storage device. The electronic device 100 includes a motherboard 11, a connector 12, and an electronic component 13. The motherboard 11 is disposed in the chassis 200. The connector 12 is disposed on the motherboard 11 and is electrically connected to the motherboard 11. The electronic component 13 is used to be inserted into the chassis 200 and can be plugged into the connector 12 through the guidance of the chassis 200. The electronic component 13 may be, for example, an OCP card module or a DC-SCM card module. The electronic component 13 of this first embodiment takes the OCP card module as an example. The electronic component 13 includes an electronic card 131, and an external threaded part 132. The electronic card 131 is used to be plugged into the connector 12. The external threaded part 132 is, for example, a hand-turned screw.
[0041] For the convenience of subsequent description, a first transverse direction D1 of the chassis 200, a second transverse direction D2 perpendicular to the first transverse direction D1, and a predetermined direction D3 perpendicular to the first transverse direction D1 and the second transverse direction D2 are defined. The first transverse direction D1 is taken as an example of the front-to-back direction. Figure 1 The first horizontal direction D1 in the figure is the direction indicated by the arrow as the front, and the opposite direction is the back. The second horizontal direction D2 is the left-right direction as an example. Figure 1 The second horizontal direction D2 in the figure is the direction indicated by the arrow as left, and the opposite direction is right. The predetermined direction D3 is based on the up and down direction as an example. Figure 1 The predetermined direction D3 is the direction indicated by the arrow as upward, and the opposite direction as downward.
[0042] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The case 200 includes a housing 2 and a floating fastening mechanism 3. The housing 2 includes a bottom plate 21, two guide rails 22, and a frame 23. The bottom plate 21 is for the motherboard 11 to be installed. The two guide rails 22 are arranged on the bottom plate 21 and are spaced apart along the second transverse direction D2 and are respectively located on the left and right sides of the connector 12. The two guide rails 22 are used to guide the electronic component 13 to move along the first transverse direction D1 so that the electronic card 131 of the electronic component 13 can be plugged into the connector 12. The frame 23 is arranged on the bottom plate 21 and is located at the rear end of the guide rails 22. The frame 23 has a bottom wall 231, a top wall 232, a side frame 233, and a side frame 234. The bottom wall 231 is arranged on the bottom plate 21. The top wall 232 is spaced apart above the bottom wall 231 along the predetermined direction D3. The side frame body 233 and the side frame body 234 are connected between the bottom wall 231 and the top wall 232 and are spaced apart along the second transverse direction D2. The bottom wall 231, the top wall 232 and the side frame bodies 233 and 234 jointly define a socket 230 for inserting the electronic component 13. The side frame body 234 has a rear wall 235 connected between the bottom wall 231 and the top wall 232 and facing backward, and two side walls 236 extending forward from the left and right sides of the rear wall 235, respectively. The rear wall 235 is formed with a long through hole 237, an opening 238, and a plurality of ventilation holes 239. The long through hole 237 extends in a predetermined direction D3 in a long direction for the external threaded member 132 of the electronic component 13 to pass through. The opening 238 is spaced apart above the long through hole 237 along the predetermined direction D3. The ventilation holes 239 surround the outer periphery of the long through hole 237. The number of the vent hole 239 may be one but is not limited to multiple.
[0043] The floating fastening mechanism 3 is disposed in the casing 2 for fastening the electronic component 13. The floating fastening mechanism 3 includes a floating fastener 4 and a positioning member 5. The floating fastener 4 is formed by, for example, stamping and bending of a metal material. The floating fastener 4 has a floating frame 41 and an internal thread 42 disposed on the floating frame 41. The floating frame 41 is disposed in the side frame body 234 of the frame 23 of the casing 2 and can be operated to float relative to the casing 2 along a predetermined direction D3. The floating frame 41 abuts against the back of the rear wall 235. The internal thread 42 is positioned relative to the long through hole 237 of the side frame body 234 for screwing and locking the corresponding external thread 132 of the electronic component 13. The positioning member 5 is used to position the floating frame 41 on the rear wall 235 of the side frame body 234 of the casing 2. The floating frame 41 can be operated to drive the internal thread 42 to float relative to the housing 2 along a predetermined direction D3, so that when a motherboard 11 with different thickness specifications is set in the housing 2, the floating fastening mechanism 3 can firmly fasten the electronic component 13 that has different height position changes corresponding to the thickness specifications of the motherboard 11.
[0044] See also Figure 4 , Figure 5 , Figure 6 and Figure 7The floating frame 41 has a vertical plate 411 and a circular ring 412 protruding from the back of the vertical plate 411. The vertical plate 411 abuts against the back of the rear wall 235. The internal thread 42 is formed on the vertical plate 411 and the circular ring 412 of the floating frame 41 and together with the vertical plate 411 and the circular ring 412, forms a screw hole 43. The screw hole 43 is used for the external thread member 132 (such as Figure 2 The internal thread 42 is formed on the vertical plate 411 and the circular ring 412, so that the length of the internal thread 42 and the screw hole 43 in the first horizontal direction D1 can be designed to be longer. In this way, the internal thread 42 can provide a longer length for the external thread member 132 to be screwed, thereby effectively increasing the stability of the external thread member 132 locked to the internal thread 42.
[0045] The top of the vertical plate 411 of the floating frame 41 is recessed downward to form a floating groove 413. The floating groove 413 is in the shape of a long groove and its length extends along the predetermined direction D3. The floating groove 413 is used for the positioning member 5 to pass through and can be guided by the positioning member 5 to float along the predetermined direction D3. The vertical plate 411 of the floating frame 41 is stopped by the positioning member 5.
[0046] The vertical plate 411 of the floating frame 41 is also formed with a vent hole 414. The vent hole 414 is adjacent to the bottom end of the vertical plate 411 and corresponds to the position of the vent hole 239 and is connected to the vent hole 239. Figure 2 The gas in the housing (as shown) is discharged to the external environment through the vents 414 and 239, thereby increasing the heat dissipation effect.
[0047] The floating fastener 4 also has two side plates 44, an end plate 45, and a connecting plate 46. The side plates 44 are respectively connected to the left and right opposite sides of the vertical plate 411 of the floating frame 41 and are spaced apart along the second transverse direction D2. Each side plate 44 is bent and extended backward from the vertical plate 411. Each side plate 44 is in the shape of a long plate and its length extends along the predetermined direction D3. Each side plate 44 is located inside the corresponding side wall 236 and can be stopped by the corresponding side wall 236. The side plates 44 of the floating fastener 4 can be stopped in the second transverse direction D2 by the side walls 236 of the side frame body 234, so that the floating fastener 4 can be prevented from shaking left and right along the second transverse direction D2, and the floating fastener 4 can be prevented from rotating relative to the positioning member 5. The end plate 45 is connected to the bottom end of the vertical plate 411 of the floating frame 41 and is bent and extended backward from the bottom end of the vertical plate 411. The end plate 45 and the side plate 44 can increase the overall structural strength of the floating fastener 4. The connecting plate 46 is connected to one side of the vertical plate 411 of the floating frame 41 and is bent and extended backward from the vertical plate 411. The connecting plate 46 is between the side plates 44 and adjacent to the end plate 45. The connecting plate 46 is formed with a through hole 461 extending along the second transverse direction D2.
[0048] In the first embodiment, the positioning member 5 is a rivet riveted to the rear wall 235 of the side frame body 234 of the frame 23 by pressure riveting. The positioning member 5 has a riveting section 51, a supporting section 52, a first stop section 53, and a second stop section 54. The riveting section 51 is used to be riveted to the opening 238 from the back of the rear wall 235. The supporting section 52 is connected to one end of the riveting section 51, and the outer diameter of the supporting section 52 is larger than the outer diameter of the riveting section 51. The supporting section 52 is used to penetrate the floating groove 413 of the floating fastener 4 to abut against the back of the rear wall 235. The first stop section 53 is connected to one end of the supporting section 52 opposite to the riveting section 51, and the outer diameter of the first stop section 53 is larger than the outer diameter of the supporting section 52. The first stop section 53 is used to stop the vertical plate 411 of the floating frame 41. The second stopping section 54 is connected to an end of the first stopping section 53 opposite to the abutting section 52 , and an outer diameter of the second stopping section 54 is greater than an outer diameter of the first stopping section 53 .
[0049] In the first embodiment, the floating fastener 4 is arranged to be able to Figure 3 ), and a first floating position (as shown) located at the opposite side of the initial position along the predetermined direction D3. Fig.11 ) and a second floating position (as shown Fig.13 The first floating position is located below the initial position, while the second floating position is located above the initial position. The floating fastening mechanism 3 also includes an elastic member 6. The elastic member 6 is used to hold the floating fastener 4 so that it remains in the initial position. Specifically, the elastic member 6 is a torsion spring and has a collar 61, a first elastic arm 62 connected to the collar 61 and protruding from the bottom end of the collar 61, and a second elastic arm 63 connected to the collar 61 and protruding from the top end of the collar 61 and opposite to the first elastic arm 62. The collar 61 is used to be sleeved on the first stop section 53 of the positioning member 5 and can be stopped by the second stop section 54. The first elastic arm 62 is used to pass through the through hole 461 of the connecting plate 46 of the floating fastener 4 to connect to the connecting plate 46. The second elastic arm 63 is used to abut against the side frame body 234 of the frame 23. In more detail, the first elastic arm 62 is U-shaped and has a first arm section 621 connected to the collar 61 and extending downward along the predetermined direction D3, a second arm section 622 extending from an end of the first arm section 621 opposite to the collar 61 along the second transverse direction D2, and a third arm section 623 extending upward along the predetermined direction D3 from an end of the second arm section 622 opposite to the first arm section 621. The first arm section 621 is located on the inner side of the corresponding side plate 44. The second arm section 622 is used to pass through the through hole 461 of the connecting plate 46. The third arm section 623 is used to abut against the inner side of the other corresponding side plate 44. The second elastic arm 63 is used to abut against the bottom surface of the top wall 232 of the side frame body 234.
[0050] See also Figure 7 , Figure 8 and Fig. 9When the floating fastening mechanism 3 is to be assembled to the frame 23, the elastic member 6 and the floating fastener 4 are assembled first. The elastic member 6 is rotated to an appropriate angle so that the first arm segment 621 and the third arm segment 623 are respectively horizontal and the third arm segment 623 is located below the first arm segment 621. Then, the third arm segment 623 is moved between the connecting plate 46 and the corresponding side plate 44 so that the third arm segment 623 is aligned with the through hole 461 of the connecting plate 46. The elastic member 6 is moved laterally so that the third arm segment 623 is inserted through the through hole 461 of the connecting plate 46 until the second arm segment 622 abuts against the connecting plate 46. Next, the elastic member 6 is rotated to an appropriate angle so that the second arm segment 622 is inserted through the through hole 461 of the connecting plate 46, the collar 61 is aligned with the floating groove 413 of the floating fastener 4, and the third arm segment 623 is between the connecting plate 46 and the corresponding side plate 44 and abuts against the inner side of the corresponding side plate 44. The third arm section 623 is interposed between the connecting plate 46 and the corresponding side plate 44 and abuts against the inner side of the corresponding side plate 44, so as to prevent the elastic member 6 from moving laterally and causing the second arm section 622 to separate from the through hole 461 of the connecting plate 46. In this way, the elastic member 6 can be firmly pre-fixed on the floating fastener 4.
[0051] See also Figure 4 and Figure 5 , the assembled elastic member 6 and floating fastener 4 are placed in the side frame body 234 of the frame 23, so that the vertical plate 411 of the floating frame 41 abuts against the back of the rear wall 235, and the second elastic arm 63 of the elastic member 6 abuts against the bottom surface of the top wall 232. Afterwards, the positioning member 5 is inserted through the collar 61 of the elastic member 6 and the floating groove 413 of the floating fastener 4, and the riveting section 51 of the positioning member 5 is riveted to the opening 238 of the rear wall 235 until the abutting section 52 abuts against the back of the rear wall 235, so that the positioning member 5 is riveted and fixed to the rear wall 235. At this time, the abutting section 52 of the positioning member 5 is inserted through the floating groove 413 of the floating fastener 4, the first stopping section 53 is inserted through the collar 61 of the elastic member 6 and abuts against the back of the vertical plate 411, and the second stopping section 54 abuts against the rear side of the collar 61 of the elastic member 6, and the operation of assembling the floating fastening mechanism 3 to the frame 23 is completed.
[0052] The positioning member 5 can guide the floating frame 41 to float along the predetermined direction D3 through the abutting section 52. The positioning member 5 can stop the vertical plate 411 of the floating frame 41 through the first stopping section 53 to prevent the floating frame 41 from shaking forward and detaching from the rear wall 235 of the side frame body 234 and causing the internal thread 42 and the screw hole 43 to fail to correspond to the long through hole 237. The positioning member 5 can also stop the collar 61 of the elastic member 6 through the second stopping section 54 to prevent the collar 61 from detaching from the first stopping section 53. The rear wall 235 and the first stopping section 53 are respectively stopped at the front and rear sides of the vertical plate 411 of the floating frame 41, so as to prevent the floating fastener 4 from shaking forward and backward along the first transverse direction D1. The side wall 236 is respectively stopped at the left and right sides of the side plate 44, so as to prevent the floating fastener 4 from shaking left and right along the second transverse direction D2. In this way, the floating fastener 4 can be limited to float up and down along the predetermined direction D3.
[0053] See also Figure 3 , Figure 4 and Figure 5 , the ring 61 is sleeved on the first stopper section 53 of the positioning member 5, the second arm section 622 of the first elastic arm 62 is passed through the through hole 461 of the connecting plate 46 of the floating fastener 4, and the second arm section 63 abuts against the bottom surface of the top wall 232 of the frame 23, so that the elastic member 6 can hold the floating fastener 4 to keep it in the initial position. At this time, the center of the screw hole 43 of the floating fastener 4 is aligned with the center of the long through hole 237 of the frame 23.
[0054] See also Figure 1 , Figure 2 and Fig.10 When the electronic component 13 is inserted into the housing 2 through the socket 230 and the electronic card 131 is plugged into the connector 12, the external thread 132 is inserted into the long through hole 237 and aligned with the screw hole 43. By rotating the external thread 132 to screw it into the screw hole 43, an external thread 133 of the external thread 132 is screwed to the internal thread 42 and moves along the screw hole 43. When the external thread 132 moves a predetermined stroke along the screw hole 43, the external thread 132 is locked to the internal thread 42. In this way, the floating fastening mechanism 3 can fasten the electronic component 13 to the housing 2.
[0055] See also Figure 2 , Fig.10 , Fig.11 and Fig.12When the thickness specification of the mainboard 11 arranged in the chassis 200 is, for example, thicker, the height of the electronic component 13 plugged into the connector 12 will be correspondingly lowered. Therefore, in the process of rotating the external threaded member 132 to move it toward the floating fastener 4, a conical surface 134 of the external threaded member 132 connected to the end of the external thread 133 will first contact the vertical plate 411 of the floating fastener 4 and push it downward, so that the floating fastener 4 floats downward along the predetermined direction D3. In the process of the floating fastener 4 floating downward, the connecting plate 46 will push the second arm segment 622 of the first elastic arm 62 of the elastic member 6 downward, so that the second arm segment 622 is bent and deformed relative to the first arm segment 621 and accumulates the reset elastic force. When the vertical plate 411 of the floating fastener 4 is separated from the conical surface 134 of the external threaded member 132, the floating fastener 4 will no longer float downward. At this time, the center of the screw hole 43 of the floating fastener 4 is aligned with the center of the external threaded member 132 , so that the external thread 133 of the external threaded member 132 can be smoothly screwed into the screw hole 43 and screwed to the internal thread 42 .
[0056] The travel of the floating fastener 4 floating downward along the predetermined direction D3 varies with the height of the electronic component 13. In the first embodiment, the maximum travel of the floating fastener 4 floating downward along the predetermined direction D3 is Fig.11 The first floating position shown. That is, the floating fastener 4 can stop at the first floating position corresponding to the height position of the electronic component 13, or any position between the initial position and the first floating position. The travel distance of the floating fastener 4 from the initial position to the first floating position is, for example, 0.5 mm, but is not limited thereto.
[0057] When the external thread 133 of the external thread member 132 is screwed out of the screw hole 43 , the restoring elastic force accumulated in the second arm section 622 of the first elastic arm 62 will rebound the connecting plate 46 , so that the floating fastener 4 floats upward and returns to the initial position.
[0058] See also Figure 2 , Fig.10 , Fig.13 and Fig.14When the thickness of the motherboard 11 disposed in the chassis 200 is thin, for example, the height of the electronic component 13 plugged into the connector 12 will rise accordingly. Therefore, in the process of rotating the external threaded member 132 to move it toward the floating fastener 4, the conical surface 134 of the external threaded member 132 will first contact the vertical plate 411 of the floating fastener 4 and push it upward, so that the floating fastener 4 floats upward along the predetermined direction D3. In the process of the floating fastener 4 floating upward, the connecting plate 46 will push the second arm segment 622 of the first elastic arm 62 of the elastic member 6 upward, so that the second arm segment 622 is bent and deformed relative to the first arm segment 621 and accumulates the restoring elastic force. At the same time, the second arm segment 63 is squeezed by the top wall 232 and deformed relative to the ring 61 and accumulates the restoring elastic force. When the vertical plate 411 of the floating fastener 4 is separated from the conical surface 134 of the external threaded member 132, the floating fastener 4 will no longer float upward. At this time, the center of the screw hole 43 of the floating fastener 4 is aligned with the center of the external threaded member 132 , so that the external thread 133 of the external threaded member 132 can be smoothly screwed into the screw hole 43 and screwed to the internal thread 42 .
[0059] The travel of the floating fastener 4 floating upward along the predetermined direction D3 varies with the height of the electronic component 13. In the first embodiment, the maximum travel of the floating fastener 4 floating upward along the predetermined direction D3 is Fig.13 The second floating position shown. That is, the floating fastener 4 can stop at the second floating position corresponding to the height position of the electronic component 13, or any position between the initial position and the second floating position. The travel distance of the floating fastener 4 from the initial position to the second floating position is, for example, 0.5 mm, but is not limited thereto.
[0060] When the external thread 133 of the external threaded member 132 is screwed out of the screw hole 43, the restoring elastic force accumulated in the second arm segment 622 of the first elastic arm 62 will rebound the connecting plate 46, and the restoring elastic force accumulated in the second arm segment 63 will rebound the connecting plate 46 through the ring 61 and the first elastic arm 62, so that the floating fastener 4 floats downward and returns to the initial position.
[0061] It should be noted that the chassis 200 of the first embodiment may also have the following different implementations depending on the needs:
[0062] In one embodiment, the floating fastener 4 is configured to float between an initial position and a first floating position below the initial position.
[0063] Another implementation: The floating fastener 4 is configured to float between an initial position and a second floating position located above the initial position.
[0064] See also Fig.15A second embodiment of the chassis 200 of the utility model has an overall structure that is substantially the same as that of the first embodiment, except that the floating fastening mechanism 3 is different.
[0065] In the second embodiment, the floating fastening mechanism 3 is omitted. Figure 4 The elastic member 6 is shown. When the floating fastener 4 is in the initial position, the end plate 45 abuts against the bottom wall 231 of the frame 23, and the center of the screw hole 43 is offset downward from the center of the long through hole 237. The floating fastening mechanism 3 of the second embodiment can further save the number of components and manufacturing costs compared with the first embodiment.
[0066] In summary, the chassis 200 of each embodiment, through the design of the floating fastening mechanism 3, when a motherboard 11 of different thickness specifications is arranged in the housing 2, the floating fastening mechanism 3 can firmly fasten the electronic components 13 that have different height position changes corresponding to the thickness specifications of the motherboard 11, and can indeed achieve the purpose of the utility model.
Claims
1. A floating fastening mechanism (3), suitable for being arranged on a housing (2) for fastening an electronic component (13), characterized in that: The floating fastening mechanism (3) includes a floating fastener (4) and a positioning member (5). The floating fastener (4) has a floating frame (41) and an internal thread (42) arranged on the floating frame (41). The floating frame (41) is arranged on the housing (2) and can be operated to float relative to the housing (2) along a predetermined direction (D3). The internal thread (42) is used to lock the corresponding external thread (132) of the electronic component (13). The positioning member (5) is used to position the floating frame (41) on the housing (2).
2. The floating fastening mechanism according to claim 1, characterized in that: The floating frame has a vertical plate against the housing and a circular ring protruding from the vertical plate. The internal thread is formed on the vertical plate and the circular ring and together with the vertical plate and the circular ring, forms a screw hole for the external thread member to pass through.
3. The floating fastening mechanism according to claim 1, characterized in that: The floating frame is formed with a floating groove in the shape of a long groove and its length extends along the predetermined direction. The floating groove is for the positioning member to pass through and can be guided by the positioning member to float along the predetermined direction. The positioning member has a stopping section that stops the floating frame to prevent the floating frame from detaching from the casing.
4. The floating fastening mechanism according to claim 1, characterized in that: The floating fastener also has two side plates respectively connected to the opposite sides of the floating frame, and the side plates are spaced apart along a transverse direction perpendicular to the predetermined direction. Each of the side plates is in the shape of a long plate and its length extends along the predetermined direction and can be blocked by the casing in the transverse direction.
5. The floating fastening mechanism according to claim 1, characterized in that: The floating fastener also has an end plate connected to the floating frame.
6. The floating fastening mechanism according to claim 1, characterized in that: The floating frame is formed with ventilation holes.
7. The floating fastening mechanism according to any one of claims 1 to 6, characterized in that: The positioning member is a rivet riveted to the casing by pressure riveting.
8. The floating fastening mechanism according to any one of claims 1 to 6, characterized in that: The floating fastener is configured to float at least between an initial position and a floating position. The floating fastening mechanism further comprises an elastic member, which is used to hold the floating fastener to keep it in the initial position.
9. The floating fastening mechanism according to claim 1, characterized in that: The floating fastener is configured to float between an initial position, and a first floating position and a second floating position respectively located on opposite sides of the initial position along the predetermined direction. The floating fastening mechanism also includes an elastic member, which is used to hold the floating fastener to keep it in the initial position.
10. The floating fastening mechanism according to claim 9, characterized in that: The elastic member is a torsion spring and has a ring mounted on the positioning member, a first elastic arm connected to the ring, and a second elastic arm connected to the ring and opposite to the first elastic arm. The first elastic arm is connected to the floating fastener, and the second elastic arm abuts against the housing.
11. The floating fastening mechanism according to claim 10, characterized in that: The floating fastener also has a connecting plate connected to the floating frame, the connecting plate is formed with a through hole, the first elastic arm has a first arm segment connected to the ring and extending along the predetermined direction, and a second arm segment extending from an end of the first arm segment opposite to the ring along a horizontal direction perpendicular to the predetermined direction and passing through the through hole.
12. The floating fastening mechanism according to claim 11, characterized in that: The floating fastener also has two side plates respectively connected to the opposite sides of the floating frame, the side plates are spaced apart along the horizontal direction, each of the side plates is in the shape of a long plate and its length extends along the predetermined direction and can be stopped by the casing in the horizontal direction, the first elastic arm also has a third arm segment extending from an end of the second arm segment opposite to the first arm segment along the predetermined direction, the third arm segment is between the connecting plate and the corresponding side plate and abuts against the corresponding side plate.
13. The floating fastening mechanism according to claim 10, characterized in that: The positioning member is a rivet riveted to the casing by pressure riveting, and the positioning member comprises a riveting section, a rest section, a first stop section and a second stop section, the riveting section is riveted to the casing, the rest section is connected to one end of the riveting section, the rest section has an outer diameter greater than the outer diameter of the riveting section and rests against the casing, the first stop section is connected to an end of the rest section opposite to the riveting section, the first stop section has an outer diameter greater than the outer diameter of the rest section, the second stop section is connected to an end of the first stop section opposite to the rest section, the second stop section has an outer diameter greater than the outer diameter of the first stop section, the floating frame is formed with a floating groove for the rest section to pass through, the floating groove is in the shape of a long groove and its length extends along the predetermined direction, the floating frame is stopped by the first stop section, and the ring is sleeved on the first stop section and stopped by the second stop section.
14. A chassis (200) suitable for inserting an electronic component (13); characterized in that: The chassis (200) includes a housing (2), and a floating fastening mechanism (3) as described in any one of claims 1 to 13, wherein the housing (2) is formed with a long through hole (237), the length of the long through hole (237) extending along the predetermined direction (D3), and the long through hole (237) is positioned relative to the internal thread (42) for the external thread member (132) to pass through.
15. The chassis according to claim 14, characterized in that: The housing is also formed with an opening for riveting the positioning piece.