Circuit board fixing device

Abstract

The invention relates to a circuit board fixing device which comprises a mounting shell, a fixing assembly and a fixing rod. A plurality of through holes are formed in the wall surface of the mounting shell; the fixing assembly is arranged on the mounting shell and comprises a first driving rod and a limiting piece. The two ends of the first driving rod are pivoted to the mounting shell and the side plate of the limiting piece respectively. One end of the fixing rod is pivoted on the wall surface of the mounting shell, and the other end is provided with a bump. When the circuit board is arranged in the installation shell, the limiting piece is moved to fix the circuit board, and then the protruding block is arranged in the groove of the side plate of the limiting piece and the corresponding through holes in a penetrating mode to fix the limiting piece. Therefore, the fixing device has a good fastening effect on the mounted circuit board, and can meet various circuit board specifications.

Description

Technical Field

[0001] The present invention relates to an electronic device fixing component, and in particular to a circuit board fixing device with good fixing effect. Background Art

[0002] There are two common ways to secure a Peripheral Component Interconnect Express (PCIE) card. One method involves installing a plastic clip on the I / O bezel at the front of the PCIE card and rotating it to lock the card. However, this method leaves the rear end of the PCIE card unsecured, and the plastic clip's material easily deforms, making it prone to loosening.

[0003] Another method for securing PCIE cards involves adding a rotating sheet metal cover to the rear of the riser cage. Foam pads are placed where the cover contacts the PCIE card to prevent contact with the card's electronic components. The cover then rotates downward to secure the card during installation. However, the drawback is that the movement of the hinge can squeeze the PCIE card near the hinge, and the card only supports a single standard size.

[0004] Therefore, if a circuit board fixing device that is easy to assemble and disassemble, has a stable fixing structure, does not deform, and is applicable to circuit boards of various specifications can be invented, the above-mentioned problems can be effectively improved. Summary of the Invention

[0005] The main purpose of the present invention is to provide a circuit board fixing device, which has good guiding and fastening effects and can meet various circuit board specifications.

[0006] To achieve the above-mentioned objectives, the present invention provides a circuit board fixing device, comprising a mounting shell having an opening connected to a fixed space within the mounting shell, and a plurality of arranged through-holes disposed on a wall surface of the mounting shell. A fixing assembly is disposed on the mounting shell, wherein the fixing assembly includes: a first end of a first driving rod pivotally mounted on the mounting shell and proximate to the opening; a limiting member including a limiting plate and a first side plate, the first side plate being perpendicularly mounted to the limiting plate; a second end of the first driving rod pivotally mounted on the first side plate, and the first side plate also having a groove; a first end of a fixing rod pivotally mounted on the wall surface of the mounting shell, and a second end of the fixing rod having a protrusion disposed thereon for passing through one of the plurality of through-holes and being fixed therein to secure the limiting member.

[0007] It is characterized in that the fixing component also includes a fixed guide rail, which is arranged on the limit plate. The fixed guide rail includes a main body arranged on the limit plate; a fixed boss is arranged on one side of the main body, and the fixed boss is passed through and fixed on the limit plate; a guide groove is arranged on the main body, and is opposite to the other side where the fixed boss is arranged.

[0008] The characteristic is that the fixed guide rail further includes an elastic member, which is sleeved on the fixed boss and located between the body and the limiting plate.

[0009] The feature of the invention is that the plurality of perforations are arranged gradually away from the opening.

[0010] The invention is characterized in that the fixing rod is an elastic conductive fixing rod.

[0011] The circuit board fixing device is characterized in that it further includes a deformation sensor, which is arranged on the fixing rod. When the deformation sensor senses that the fixing rod is deformed, it sends a deformation signal.

[0012] The circuit board fixing device is characterized in that it further includes a controller connected to the deformation sensor to receive a deformation signal and generate a warning signal according to the deformation signal.

[0013] The invention is characterized in that a handle is provided at the second end of the fixing rod, and the handle is arranged opposite to the other side of the protrusion.

[0014] The feature is that the limiting member further includes a second side plate, which is disposed on the limiting plate and is disposed opposite to the first side plate. The fixing assembly further includes a second drive rod, which is pivotally mounted on the mounting housing near the opening and opposite to the first drive rod, with a second end of the second drive rod pivotally mounted on the second side plate.

[0015] The invention is characterized in that the first driving rod is offset from the second driving rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of an embodiment of the present invention.

[0017] Figure 2 2 is an exploded view of components of an embodiment of the present invention.

[0018] Figure 3 It is a cross-sectional schematic diagram of the implementation of the present invention.

[0019] Figure 4 A block diagram of the present invention.

[0020] Figures 5 to 7 Schematic diagram of the continuous use state of an embodiment of the present invention.

[0021] Main component symbols

[0022] Circuit board fixing device 1

[0023] Install Shell 10

[0024] Opening 12

[0025] Fixed space 14

[0026] Wall 16

[0027] Mounting plate 17

[0028] Piercing 18

[0029] Fixing component 20

[0030] First driving rod 22

[0031] First end 220

[0032] Second end 222

[0033] Second driving rod 22'

[0034] First end 220'

[0035] Second end 222'

[0036] Limiting piece 24

[0037] Limiting plate 240

[0038] First side plate 242

[0039] Second side plate 242'

[0040] Groove 244

[0041] Fixed rail 26

[0042] Ontology 260

[0043] Fixed boss 262

[0044] Hook 262a

[0045] Guide groove 264

[0046] Elastic member 266

[0047] Fixed rod 30

[0048] First end 32

[0049] Second end 34

[0050] Bump 36

[0051] Handle 38

[0052] Deformation sensor 40

[0053] Controller 42

[0054] Circuit board 50

[0055] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0056] In order to facilitate those skilled in the art to understand and implement the present invention, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0057] The present invention provides a circuit board fixture that can be used to mount a circuit board in an electronic device, thereby expanding the performance of the electronic device. The electronic device can be a server or computer, and the circuit board can be a PCI Express (PCIe) bus switch card that can be used to connect the processor and other key components in the electronic device, such as a display adapter, hard drive, and network card, to provide functions such as high-speed data transmission.

[0058] Please refer to Figures 1 to 3 , to illustrate the structure of the circuit board fixture device of this embodiment. The circuit board fixture device 1 includes a mounting shell 10, a fixing assembly 20, and a fixing rod 30. The mounting shell 10 has an opening 12, which communicates with a fixed space 14 within the mounting shell 10. In this embodiment, the mounting shell 10 is a rectangular parallelepiped. A wall 16 of the mounting shell 10 is disposed perpendicularly to the opening 12 in the Y-axis direction, and a mounting plate 17 is disposed perpendicularly to the opening 12 in the Y-axis direction, with the mounting plate 17 disposed opposite the wall 16. A plurality of through-holes 18 are arranged on the wall 16. The plurality of through-holes 18 are arranged on the wall 16 in a manner gradually moving away from the opening 12, and the plurality of through-holes 18 are spaced apart along an arcuate path. In this embodiment, the second end 34 of the fixing rod 30 moves along an arcuate path. The plurality of through-holes 18 are spaced apart along the arcuate path.

[0059] The fixing assembly 20 is mounted on the mounting housing 10 and includes a first drive rod 22, a second drive rod 22', a stopper 24, and at least one fixed guide rail 26. The first drive rod 22 and the second drive rod 22' are mounted on the mounting housing 10, and the stopper 24 connects the first drive rod 22 and the second drive rod 22'. The stopper 24 includes a stopper plate 240, a first side plate 242, and a second side plate 242'. The first side plate 242 is provided with a groove 244. In this embodiment, the stopper plate 240 may be rectangular. The stopper plate 240 is disposed perpendicular to the first side plate 242, that is, the stopper plate 240 is disposed perpendicular to the first side plate 242 in the Z-axis direction. The second side plate 242' is disposed opposite the first side plate 242 in the Z-axis direction and is also perpendicular to the stopper plate 240 in the Y-axis direction.

[0060] The fixed guide rail 26 is provided on the limiting plate 240. The fixed guide rail 26 is extended in the X-axis direction and is provided on the limiting plate 240. The fixed guide rail 26 includes a main body 260, at least one fixed boss 262, a guide groove 264 and at least one elastic member 266. The fixed boss 262 is provided on one side of the main body 260, and the fixed boss 262 is passed through the limiting plate 240 to fix the main body 260 on the limiting plate 240. In the present embodiment, a hook 260a is further provided at one end of the fixed boss 262 passing through the limiting plate 240, which can limit the fixed boss 262 from being separated from the limiting plate 240. The guide groove 264 is provided on the main body 260, and is opposite to the other side where the fixed boss 262 is provided. In the present embodiment, the guide groove 264 conforms to the shape of the circuit board to achieve the function of fixing the circuit board and limiting the position of the circuit board. The elastic member 266 is sleeved on the fixing boss 262 and is located between the body 260 and the limiting plate 240. In this embodiment, the elastic member 266 is a spring.

[0061] The first drive rod 22 of the fixing assembly 20 has a first end 220 and a second end 222 that oppose each other. The first end 220 is pivotally mounted on the mounting housing 10 near the opening 12. The second end 222 of the first drive rod 22 is pivotally mounted on the side plate 240 of the retaining member 24. This embodiment also includes a second drive rod 22', which includes a first end 220' and a second end 222'. The first end 220' of the second drive rod 22' is pivotally mounted on the mounting plate 17, and the second end 222' is pivotally mounted on the side plate 240' of the retaining member 24. The second drive rod 22' is parallel to the first drive rod 22, but is offset from the first drive rod.

[0062] In this embodiment, the first end 220' of the second drive rod 22' is pivoted to the mounting plate 17, separated from the first end 220 of the first drive rod 22 and not aligned on the same Z-axis, but rather offset. The second end 222' of the second drive rod 22' is pivoted to the side plate 240', not aligned on the same Z-axis as the first drive rod 22 pivoted on the side plate 240, but rather offset. If the rotation axes of the first and second drive rods 22, 22' were aligned on the same Z-axis, without being offset, the stopper 24 would rotate due to lack of rotational freedom. However, the offset between the upper and lower positions of the first and second drive rods 22, 22' in this embodiment structurally limits rotational freedom, allowing the support surface of the stopper 24 to maintain horizontal movement, thereby achieving parallel movement of the stopper 24 in the XY plane. Furthermore, the first and second drive rods 22, 22' have identical structures, allowing for interchangeable installation and reducing factory assembly errors.

[0063] The fixing rod 30 has a first end 32 and a second end 34 that are opposite to each other. The first end 32 of the fixing rod 30 is pivotally mounted on the wall 16 of the mounting shell 10. In this embodiment, the fixing rod 30 is disposed on the wall 16 on the same surface as the through-hole 18. The first end 32 of the fixing rod 30 can be fixed to the wall 16 by riveting. The second end 34 of the fixing rod 30 is provided with a protrusion 36 that extends along the Z-axis direction to penetrate one of the plurality of through-holes 12 on the mounting shell 10 and is fixed in the groove 244 of the limiter 24 to achieve the function of fixing the limiter 24. The second end 34 of the fixing rod 30 is also provided with a handle 38, and the handle 38 is disposed on the other side of the protrusion 36 and extends in the Z-axis direction opposite to the protrusion 36. The fixing rod 30 can be an elastic conductive fixing rod, and the material of the fixing rod 30 can be a conductive metal, such as iron.

[0064] In addition to the above structure, please refer to Figures 1 to 4 In this embodiment, the circuit board fixture 1 further includes a deformation sensor 40 and a controller 42. In this embodiment, the deformation sensor 40 is a sheet-like structure. The deformation sensor 40 is disposed on the fixing rod 30 and is signal-connected to the controller 42 to sense whether the fixing rod 30 is deformed and transmit the detection result to the controller 42. In this embodiment, the deformation sensor 40 can be a strain gauge, and the controller 42 can be a computer with a light bulb, a light-emitting diode (LED), a speaker, or a screen. The controller 42 can also be an external device.

[0065] Strain gauges utilize the strain gauge effect. When an object deforms, its electrical resistance changes. Therefore, the strain gauge can determine whether the detected object is deformed by this change in resistance. In this embodiment, a deformation sensor 40 is mounted on a fixed rod 30. Furthermore, the fixed rod 30 is made of an elastic and conductive material. Therefore, when the deformation sensor 40 senses deformation of the fixed rod 30, it generates a deformation signal to the controller 42. The controller 42 then generates an alarm signal based on the deformation signal. The controller 42 is equipped with a light bulb, light-emitting diode, speaker, or screen. When the alarm signal is generated, the controller 42 can control the light bulb or light-emitting diode to flash, display a pop-up message on the screen, or emit an alarm sound from the speaker, etc.

[0066] After explaining the structure of the circuit board fixing device 1 of this embodiment, please refer to Figures 5 to 7 , to illustrate the use of the circuit board fixture 1 to install the circuit board. The circuit board in this embodiment is a bus switch card (Peripheral Component Interconnect Express, PCIE). Figure 5 , place the circuit board 50 into the fixed space 14 through the opening 12. Figure 6 And with reference Figure 3 , pull up the fixing rod 30 using the handle 38 to remove the protrusion 36 from the through-hole 18. Then, push the fixing assembly 20 into the fixing space 14 until the circuit board 50 engages with the guide groove 264 of the fixing rail 26. Because the guide groove 264 conforms to the shape of the circuit board 50, it effectively restrains and supports the circuit board 50, preventing it from bending. The provision of the fixing rail 26 also achieves a parallel guiding effect. The provision of the elastic member 266 provides a buffering effect, while also addressing manufacturing and assembly tolerance issues, effectively ensuring contact between the fixing rail 26 and the circuit board 50.

[0067] Then please refer to Figure 7 and Figure 3 , adjust the limiting member 24 so that the circuit board 50 is engaged with the guide groove 264, and at the same time align the groove 244 with the position of one of the plurality of through holes 18, then adjust the fixing rod 30 so that the protrusion 36 passes through the groove 244 and the corresponding one of the plurality of through holes 18, thereby locking the position of the limiting member 24 to fix the circuit board 50.

[0068] This embodiment features multiple through-holes 18 to secure circuit boards 50 of various sizes. For example, if a PCIE card is half-height, a smaller card, the bump 36 will engage with the through-hole 18 farthest from the opening 12. If a full-height card is larger, the bump 36 will engage with the through-hole 18 closest to the opening 12. Therefore, the circuit board fixture 1 of this embodiment can accommodate various circuit board sizes.

[0069] Please refer to Figure 7 and Figure 4 If the user does not securely insert the bump 36 into the through-hole 18 when securing the circuit board 50, the fixing rod 30 may be deformed. The deformation sensor 40 senses the deformation of the fixing rod 30 and generates a deformation signal to the controller 42. The controller 42 then generates a warning signal based on the deformation signal. The controller 42 can remind the user to adjust the fixing rod 30 by flashing a light bulb or LED, displaying a pop-up message on the screen, or controlling a speaker to emit a warning sound.

[0070] In summary, the present invention has good parallel guiding effect and fastening effect, and can meet various circuit board specifications. In addition, when the fixing rod is detached, a warning can be issued to remind the user that the circuit board is not effectively fixed.

[0071] In summary, this invention meets the requirements for invention patents, and a patent application is hereby filed in accordance with the law. However, the foregoing description is merely a preferred embodiment of the invention, and the scope of the invention is not limited to the foregoing embodiment. Any equivalent modifications or variations made by persons skilled in the art in accordance with the spirit of the invention are intended to be encompassed by the following patent application.

Claims

1. A circuit board fixing device, characterized in that: include: A mounting shell having an opening thereon, the opening communicating with a fixed space within the mounting shell, and a plurality of arranged through holes being provided on a wall surface of the mounting shell; A fixing assembly is provided on the mounting shell, and the fixing assembly includes: a first driving rod, wherein a first end of the first driving rod is pivotally mounted on the mounting housing and close to the opening; and A limiting member, comprising a limiting plate and a first side plate, wherein the first side plate is vertically arranged on the limiting plate, the second end of the first driving rod is pivotally arranged on the first side plate, and the first side plate is further provided with a groove; and A fixing rod, wherein the first end of the fixing rod is pivotally mounted on the wall surface of the mounting shell, and the second end of the fixing rod is provided with a protrusion to pass through one of the plurality of through holes and to be fixed in the groove to fix the limiting member.

2. The circuit board fixing device according to claim 1, wherein: The fixing assembly further includes a fixing guide rail, which is arranged on the limiting plate. The fixing guide rail includes: a body, which is arranged on the limiting plate; A fixed boss is provided on one side of the body, and the fixed boss is passed through and fixed on the limiting plate; and The guide groove is arranged on the main body and is opposite to the other side of the fixing boss.

3. The circuit board fixing device according to claim 2, wherein: The fixed guide rail further includes an elastic member, which is sleeved on the fixed boss and located between the body and the limiting plate.

4. The circuit board fixing device according to claim 1, wherein: The plurality of perforations are arranged gradually away from the opening.

5. The circuit board fixing device according to claim 1, wherein: The fixing rod is an elastic conductive fixing rod.

6. The circuit board fixing device according to claim 5, wherein: The device further comprises a deformation sensor which is arranged on the fixing rod. When the deformation sensor senses that the fixing rod is deformed, a deformation signal is sent out.

7. The circuit board fixing device according to claim 6, wherein: The device further comprises a controller connected to the deformation sensor to receive the deformation signal and generate a warning signal according to the deformation signal.

8. The circuit board fixing device according to claim 1, wherein: The second end of the fixing rod is provided with a handle, and the handle is arranged opposite to the other side of the protrusion.

9. The circuit board fixing device according to claim 1, wherein: The limiting member also includes a second side plate, which is arranged on the limiting plate and is arranged opposite to the first side plate; the fixing assembly also includes a second driving rod, the first end of the second driving rod is pivotally arranged on the mounting shell and close to the opening, and the second end of the second driving rod is pivotally arranged on the second side plate on the other side opposite to the first driving rod.

10. The circuit board fixing device according to claim 9, wherein: The first driving rod is offset from the second driving rod.

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