Positioning jig

Abstract

A positioning jig includes a shielding member and a driving member. The shielding member includes a sliding portion, a guiding portion and a shielding portion. The sliding portion is slidably connected to a functional module. The sliding portion and the shielding portion extend from opposite ends of the guiding portion. The sliding portion includes a guide slot. The driving member is movably disposed on the functional module corresponding to the shielding member. The driving member includes a base portion, a driving portion and a column portion. The driving portion contacts the guiding portion. The column portion protrudes from the base portion and is adapted to pass through the guide slot. When the functional module is positioned on a circuit board, the base portion of the driving member is pushed by an electronic component. The driving portion pushes the guiding portion to slide the shielding member, so that the shielding portion shields a locking hole of the circuit board. Thus, once a functional module applied to a certain model is incorrectly installed on a circuit board applied to another model, the positioning jig can be driven by the electronic component on the circuit board to shield the locking hole of the circuit board, preventing a screw from being locked into the locking hole of the circuit board.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a positioning jig, and in particular, to a positioning jig capable of avoiding mislocking. BACKGROUND

[0002] Generally, a circuit board is provided with a locking hole for locking a functional module (e.g. a heat dissipation module) to the circuit board. In different models of electronic devices, the specifications and sizes of the circuit boards, the positions of the electronic components on the circuit boards, and the positions of the locking holes are different, and accordingly, the specifications and sizes of the functional modules are also different.

[0003] To avoid the functional module applied to one model being mistakenly installed to the circuit board applied to another model, a common approach is to provide a thickening pad (e.g. a rubber pad) on the bottom surface of the functional module. Once a mistaken installation occurs, the thickening pad interferes with the electronic components on the circuit board to increase the distance between the locking hole on the functional module and the locking hole on the circuit board, so that the screw cannot be locked and fixed to the two locking holes. However, because the thickening pad can be deformed by being pressed, once the installer does not realize the mistaken installation and forcibly rotates the screw, finally, the functional module can still be locked to the circuit board by the screw, but the mutually pushed and squeezed functional module and the electronic components on the circuit board are prone to deformation, and even damage. SUMMARY

[0004] The purpose of the present disclosure is to provide a positioning jig that helps to improve the installation accuracy.

[0005] The present disclosure provides a positioning jig suitable for a functional module and a circuit board. The circuit board includes an electronic component and a first locking hole. The electronic component is disposed adjacent to the first locking hole. The positioning jig includes a shielding member and a driving member. The shielding member includes a sliding portion, a guide portion, and a shielding portion. The sliding portion is slidably connected to the functional module and extends from one end of the guide portion in a first direction. The shielding portion extends from the other end of the guide portion in a second direction opposite to the first direction and corresponds to the first locking hole. The sliding portion includes a guide groove. The driving member is movably disposed on the functional module corresponding to the shielding member. The driving member includes a base portion, a driving portion, and a column portion. The driving portion contacts the guide portion. The column portion protrudes from the base portion and is adapted to pass through the guide groove. When the functional module is positioned on the circuit board, the base portion of the driving member is pushed against the electronic component, the driving portion pushes the guide portion, causing the shielding member to slide in the second direction, so that the shielding portion shields the first locking hole.

[0006] According to one embodiment of the present disclosure, a spring is further included, which is sleeved on the column portion of the driving member, and the two ends of the spring respectively contact the functional module and the base portion of the driving member.

[0007] According to one of the embodiments of the present disclosure, the functional module comprises a second locking hole, and the shielding part is adapted to block between the first locking hole and the second locking hole when the electronic component pushes against the driving member.

[0008] According to one of the embodiments of the present disclosure, the shielding member further comprises two positioning parts connected to the sliding part, and the two positioning parts are respectively located on two opposite sides of the guide groove, and the two positioning parts are slidably connected to the functional module.

[0009] According to one of the embodiments of the present disclosure, an extension direction of the guide groove is parallel to the first direction.

[0010] According to one of the embodiments of the present disclosure, the shielding member further comprises a resilient part, two ends of the resilient part are respectively connected to the sliding part and the functional module, and the guide part and the resilient part are respectively located on two opposite sides of the sliding part.

[0011] According to one of the embodiments of the present disclosure, the sliding part, the guide part, and the shielding part sequentially form a stepped structure.

[0012] According to one of the embodiments of the present disclosure, the driving part comprises a driving slope, the guide part comprises a guide slope, and the driving slope contacts the guide slope.

[0013] According to one of the embodiments of the present disclosure, further comprising a locking member, the locking member is locked into the column part from a side of the shielding member opposite to the functional module.

[0014] According to one of the embodiments of the present disclosure, the locking member comprises a nut part and a threaded part, and the sliding part is located between the nut part and the functional module, and the threaded part is locked into the column part.

[0015] According to one of the embodiments of the present disclosure, an extension length of the guide groove is greater than an outer diameter of the column part.

[0016] Based on the above, the positioning jig of the present disclosure can be integrated on the functional module. Once a functional module applied to one model is mistakenly installed on a circuit board applied to another model, the positioning jig can be driven by the electronic component on the circuit board to shield the locking hole of the circuit board, preventing the screw from being locked into the locking hole of the circuit board. That is, the positioning jig of the present disclosure can make the installer aware of the installation error, thereby improving the installation accuracy and reducing the probability of damage to the functional module and the circuit board due to the installation error.

[0017] In order to make the above features and advantages of the present disclosure more obvious and easy to understand, the following specific examples are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 WithFigure 2 This is a partial schematic diagram of a positioning fixture according to an embodiment of the present disclosure, used to assist in the installation of functional modules and circuit boards.

[0019] Figure 3 yes Figure 1 A cross-sectional schematic diagram.

[0020] Figure 4 yes Figure 2 A cross-sectional schematic diagram.

[0021] Figure 5 yes Figure 1 A top-down view.

[0022] The attached figures are labeled as follows:

[0023] 10: Functional Modules

[0024] 11: Second keyhole

[0025] 12: Perforation

[0026] 20: Circuit board

[0027] 21: First keyhole

[0028] 30: Electronic components

[0029] 40: Screws

[0030] 100: Positioning fixture

[0031] 110: Shielding component

[0032] 111: Sliding part

[0033] 112: Guiding Department

[0034] 112a: Guide slope

[0035] 113: Shelter

[0036] 114: Guide groove

[0037] 115: Elastic part

[0038] 116: Positioning Department

[0039] 120: Drive components

[0040] 121: Base

[0041] 122: Drive Unit

[0042] 122a: Driving inclined plane

[0043] 123: Column

[0044] 130: Spring

[0045] 140: Locking firmware

[0046] 141: Nut section

[0047] 142: Threaded section

[0048] D1: First Direction

[0049] D2: Second Direction

[0050] D3: Third direction Detailed Implementation

[0051] Figure 1 and Figure 2 This is a partial schematic diagram of a positioning fixture according to an embodiment of the present disclosure, used to assist in the installation of functional modules and circuit boards. Figure 3 yes Figure 1 A cross-sectional schematic diagram. Figure 4 yes Figure 2 A cross-sectional view is shown. Please refer to it. Figures 1 to 4 In this embodiment, the positioning fixture 100 is suitable for assisting in the installation of the functional module 10 and the circuit board 20. The circuit board 20 includes an electronic component 30 and a first keyhole 21, and the electronic component 30 is disposed adjacent to the first keyhole 21. The functional module 10 includes a second keyhole 11, and the second keyhole 11 corresponds to the first keyhole 21. For example, the functional module 10 may be a heat dissipation module, but it is not limited thereto.

[0052] The positioning fixture 100 is disposed on the functional module 10 and includes a shielding member 110, a driving member 120, and a spring 130. Specifically, the shielding member 110 includes a sliding portion 111 slidably connected to the functional module 10, a guide portion 112 connecting to the sliding portion 111, and a shielding portion 113 connecting to the guide portion 112. The guide portion 112 is located between the sliding portion 111 and the shielding portion 113, and the shielding portion 113 extends toward the first lock hole 21 and the second lock hole 11. Further, the sliding portion 111 extends from one end of the guide portion 112 along a first direction D1, and the shielding portion 113 extends from the other end of the guide portion 112 along a second direction D2 opposite to the first direction D1 and corresponds to the first lock hole 21.

[0053] like Figure 3 and Figure 4As shown, at least a portion of the sliding part 111 contacts the functional module 10, and the guide part 112 and the shielding part 113 are separated from the functional module 10. Furthermore, the positioning fixture 100 is slidable relative to the functional module 10, allowing the shielding part 113 to slide closer to or away from the second keyhole 11. On the other hand, the driving member 120 is movably disposed on the functional module 10 corresponding to the shielding member 110, wherein the sliding direction of the sliding part 111 and the moving direction of the driving member 120 are different, for example, perpendicular to each other. The driving member 120 includes a base 121, a driving part 122 connected to the base 121, and a post part 123 protruding from the base 121, and the driving part 122 contacts the guide part 112 of the shielding member 110. Further, the driving member 120 is adapted to be pushed towards the functional module 10, and the driving part 122 pushes the guide part 112 to drive the shielding member 110 to slide along the second direction D2 closer to the first keyhole 21 and the second keyhole 11. In this embodiment, the driving member 120 is movably disposed on the functional module 10 along the direction perpendicular to the second direction D2, that is, the driving member 120 can approach or move away from the functional module 10.

[0054] In this embodiment, the sliding portion 111 has a guide groove 114, and the functional module 10 has a through hole 12 located in the guide groove 114. The column portion 123 extends into the guide groove 114. Figure 3 In the installation state shown, the column 123 is inserted into the through hole 12 of the functional module 10. When the base 121 of the drive member 120 moves toward the sliding part 111 of the shielding member 110, the column 123 passes through the through hole 12 of the functional module 10 and the guide groove 114 of the sliding part 111, as shown. Figure 4 As shown.

[0055] like Figure 3 and Figure 4 As shown, the spring 130 can be a compression spring, wherein the spring 130 is sleeved on the post portion 123, and the two ends of the spring 130 respectively contact the functional module 10 and the base 121 of the driving member 120. Furthermore, the functional module 10 and the circuit board 20 are applied to different models. During the process of installing the functional module 10 onto the circuit board 20, the electronic components 30 on the circuit board 20 fall on the installation path of the positioning fixture 100. When the functional module 10 is positioned on the circuit board 20, the base 121 of the driving member 120 contacts the electronic components 30 and is pushed towards the functional module 10 by the electronic components 30. Simultaneously, the driving part 122 of the driving member 120 pushes the guiding part 112, causing the shielding member 110 to slide relative to the functional module 10 along the second direction D2, and causing the shielding part 113 to slide and shield the first locking hole 21 of the circuit board 20, thereby blocking the space between the first locking hole 21 and the second locking hole 11.

[0056] In the case that the shielding portion 113 of the shielding member 110 blocks between the first locking hole 21 and the second locking hole 11, the screw 40 passing through the second locking hole 11 of the functional module 10 cannot be further locked into the first locking hole 21 of the circuit board 20, and the installer can also realize the error of the installation, so as to improve the installation accuracy and reduce the probability of damaging the functional module 10 and the circuit board 20 due to the error installation. That is, in the case that the screw 40 passing through the second locking hole 11 of the functional module 10 cannot be further locked into the first locking hole 21 of the circuit board 20, the installer can realize that the functional module 10 and the circuit board 20 belong to different models, and immediately stop the action of forcibly locking the functional module 10 on the circuit board 20, so as to avoid the deformation of the electronic element 30 on the functional module 10 and the circuit board 20 due to the mutual pushing and pressing.

[0057] As shown in Figure 4 , when the base 121 of the driving member 120 is pushed to move towards the sliding portion 111 of the shielding member 110, the spring 130 is elastically deformed by being pressed by the base 121. Once the base 121 of the driving member 120 moves away from the electronic element 30 on the circuit board 20, the elastic restoring force of the spring 130 can push the driving member 120 to reset to the initial position as shown in Figure 3 .

[0058] Correspondingly, in the process of installing the functional module 10 to the circuit board applied to the same model, the electronic element on the circuit board falls outside the installation path of the positioning jig 100. When the functional module 10 and the positioning jig 100 move towards the circuit board, the base 121 of the driving member 120 does not contact the electronic element, so that the driving member 120 and the shielding member 110 remain stationary. In the case that the shielding portion 113 of the shielding member 110 does not block between the second locking hole 11 of the functional module 10 and the locking hole of the circuit board, the screw 40 passing through the second locking hole 11 of the functional module 10 can be smoothly locked into the locking hole of the circuit board.

[0059] Please refer to Figure 1 and Figure 3 , in order to prevent the positioning jig 100 from being separated from the functional module 10 and ensure the mechanical coupling relationship between the driving member 120 and the shielding member 110, the positioning jig 100 further comprises a locking member 140, the locking member 140 passes through the guide groove 114 of the sliding portion 111 from the side of the shielding member 110 opposite to the functional module 10 and is locked into the column portion 123 of the driving member 120. In detail, the locking member 140 comprises a nut portion 141 and a threaded portion 142 connected to the nut portion 141, wherein the sliding portion 111 of the shielding member 110 is located between the nut portion 141 and the functional module 10, and the threaded portion 142 is locked into the column portion 123.

[0060] Figure 5 is Figure 1 a top view schematic diagram. Please refer to Figures 3 to 5In a third direction D3 perpendicular to the first direction D1 or the second direction D2, the outer diameter of the screw cap portion 141 of the locking member 140 is greater than the inner diameter of the guide slot 114. During the movement of the base portion 121 of the driving member 120 away from the shielding portion 113 of the shielding member 110 along the first direction D1, the driving member 120 immediately stops moving without disengaging from the shielding member 110 once the screw cap portion 141 of the locking member 140 contacts the sliding portion 111. In addition, the extension length of the guide slot 114 is greater than the outer diameter of the column portion 123 to facilitate the column portion 123 to pass through and slide within the guide slot 114.

[0061] On the other hand, the extension direction of the guide slot 114 is parallel to the first direction D1 or the second direction D2, and based on the cooperation between the locking member 140 and the guide slot 114 or the cooperation between the column portion 123 of the driving member 120 and the guide slot 114, the shielding member 110 can stably slide along the first direction D1 or the second direction D2, and the extension distance of the guide slot 114 can substantially determine the sliding stroke of the shielding member 110.

[0062] Please refer to Figure 3 and Figure 4 In this embodiment, the shielding member 110 further comprises an elastic portion 115, wherein both ends of the elastic portion 115 are respectively connected to the sliding portion 111 and the functional module 10, and the guide portion 112 and the elastic portion 115 are respectively located on both opposite sides of the sliding portion 111. For example, the elastic portion 115 can be a tensile spring. As shown in Figure 4 , when the shielding portion 113 of the shielding member 110 slides along the second direction D2 to approach the second locking hole 11 of the functional module 10 and the first locking hole 21 of the circuit board 20, the elastic portion 115 is stretched to produce elastic deformation. Once the driving member 120 moves away from the shielding member 110, the elastic restoring force of the elastic portion 115 can pull the shielding member 110 back to the initial position shown in Figure 3 .

[0063] Please refer to Figure 1 , Figure 2 and Figure 5 , the shielding member 110 further comprises two positioning portions 116 connected to the sliding portion 111, and the two positioning portions 116 are respectively located on both opposite sides of the guide slot 114. In detail, the two positioning portions 116 are slidably clamped to the functional module 10 to prevent the shielding member 110 from disengaging from the functional module 10 and improve the stability of the shielding member 110 when sliding along the first direction D1 or the second direction D2.

[0064] As shown in Figure 3 and Figure 4As shown, the sliding portion 111, the guiding portion 112 and the shielding portion 113 sequentially form a stepped structure, wherein the guiding portion 112 extends obliquely between the sliding portion 111 and the shielding portion 113 and has a guiding slope 112a facing the column portion 123. In addition, the driving portion 122 has a driving slope 122a facing away from the column portion 123, wherein the driving slope 122a contacts the guiding slope 112a and the driving slope 122a and the guiding slope 112a are substantially parallel to each other, so as to improve the stability and smoothness when the driving portion 122 slides relative to the guiding portion 112.

[0065] In summary, the positioning jig of the present disclosure can be integrated on the functional module. Once the functional module applied to one model is incorrectly installed on the circuit board applied to another model, the positioning jig can be driven by the electronic components on the circuit board to shield between the lock hole of the functional module and the lock hole of the circuit board, preventing the screw passing through the lock hole of the functional module from being further locked into the lock hole of the circuit board. That is, the positioning jig of the present disclosure can make the installer aware of the installation error, so as to improve the installation accuracy and reduce the probability of damage to the functional module and the circuit board due to incorrect installation.

[0066] Although the present disclosure has been disclosed as above with embodiments, it is not intended to limit the present disclosure, and those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the appended claims.

Claims

1. A positioning jig adapted to a functional module and a circuit board, the circuit board comprising an electronic component and a first locking hole, the electronic component being disposed adjacent to the first locking hole, characterized in that, The positioning jig comprises: a shielding member disposed corresponding to the electronic component and comprising a sliding portion, a guiding portion and a shielding portion, the sliding portion slidingly connected to the functional module and extending from one end of the guiding portion in a first direction, the shielding portion extending from the other end of the guiding portion in a second direction opposite to the first direction and corresponding to the first locking hole, the sliding portion comprising a guide slot; and a driving member movably disposed in the functional module corresponding to the shielding member, the driving member comprising a base portion, a driving portion and a column portion, the driving portion contacting the guiding portion, the column portion protruding from the base portion and adapted to pass through the guide slot; when the functional module is positioned on the circuit board, the base portion of the driving member is pushed by the electronic component, the driving portion pushes the guiding portion, and the shielding member slides in the second direction, so that the shielding portion shields the first locking hole.

2. The positioning fixture of claim 1, wherein A spring is further included, sleeved on the column portion of the driving member, and two ends of the spring respectively contact the functional module and the base portion of the driving member.

3. The positioning fixture of claim 1, wherein The functional module comprises a second locking hole, and the shielding portion is further adapted to block between the first locking hole and the second locking hole when the electronic component pushes the driving member.

4. The positioning fixture of claim 1, wherein The shielding member further comprises two positioning portions connected to the sliding portion, and the two positioning portions are respectively located on two opposite sides of the guide slot, and the two positioning portions are slidingly connected to the functional module.

5. The positioning fixture of claim 1, wherein An extension direction of the guide slot is parallel to the first direction.

6. The positioning fixture of claim 1, wherein The shielding member further comprises a resilient portion, two ends of the resilient portion are respectively connected to the sliding portion and the functional module, and the guiding portion and the resilient portion are respectively located on two opposite sides of the sliding portion.

7. The positioning fixture of claim 1, wherein The sliding portion, the guiding portion and the shielding portion sequentially form a stepped structure.

8. The positioning fixture of claim 1, wherein, The driving portion comprises a driving inclined surface, the guiding portion comprises a guiding inclined surface, and the driving inclined surface contacts the guiding inclined surface.

9. The positioning fixture of claim 1, wherein A locking member is further included, and the locking member is locked into the column portion from a side of the shielding member opposite to the functional module.

10. The positioning fixture of claim 9, wherein, The locking member comprises a nut portion and a threaded portion, and the sliding portion is located between the nut portion and the functional module, and the threaded portion is locked into the column portion.

11. The positioning fixture of claim 10, wherein An extension length of the guide slot is greater than an outer diameter of the column portion.

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