Looseness screw trigger switch structure and equipment

Abstract

The utility model provides a captive screw trigger switch structure and equipment, and the captive screw trigger switch structure comprises a captive screw, an elastic assembly and a mounting seat, the elastic assembly is arranged in the mounting seat, the elastic assembly comprises a PCB and a conductive elastic seat, the conductive elastic seat is fixedly arranged on the PCB, and the PCB is fixedly connected with the mounting seat. The captive screw comprises a conductive end face and a screw part with an insulating layer, and the screw part of the captive screw penetrates through the conductive elastic seat and the PCB; whether an electric signal is triggered or not is achieved by screwing in / out the captive screw. According to the embodiment of the invention, the microswitch function can be realized only by using the captive screw. And structures such as matched wrenches, buttons and the like are not needed to realize the function of the microswitch. The structure is compact, the microswitch function is realized without perception, the application scene is not limited, and the innovativeness is high.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a captive screw trigger switch structure and device. Background Art

[0002] The device realizes the on-off control of data flow by triggering the switch. At present, the on-off forms of controlling data flow on the market are either driven by a wrench to drive the micro switch or directly driven by a button.

[0003] As far as the inventors know, in one embodiment, the micro switch is connected to the micro switch socket through two electrical signal lines, and the micro switch socket is welded on the PCB board. The micro switch is driven by pulling the wrench, and the electrical signal is first transmitted to the PCB board, and then transmitted to the backplane to realize the control of data flow on and off. The micro switch is installed in the wrench seat, which occupies a large space and can only be used in occasions where the wrench and wrench seat match it, and the application scenario is limited. In another embodiment, the micro switch is driven by a button, which requires additional operations, and the button may be stuck and other unreliable situations. Summary of the invention

[0004] In order to overcome the problems existing in the related art, this specification provides a non-loose screw trigger switch structure and device.

[0005] According to the first aspect of the embodiments of the present specification, a captive screw trigger switch structure is provided, comprising a captive screw, an elastic component and a mounting seat, the elastic component being arranged in the mounting seat, the elastic component comprising a PCB board and a conductive elastic seat, the conductive elastic seat being fixedly arranged on the PCB board, the captive screw comprising a conductive end face and a screw portion having an insulating layer, the screw portion of the captive screw passing through the conductive elastic seat and the PCB board; when the captive screw is screwed in, the conductive end face of the captive screw contacts the conductive elastic seat for triggering an electrical signal; when the captive screw is screwed out, the conductive elastic seat contacts the insulating layer of the screw portion of the captive screw and cannot be used to trigger an electrical signal.

[0006] Preferably, the conductive elastic seat is a conductive metal piece with a retractable distance, and the conductive metal piece is surface-welded to the PCB board.

[0007] Furthermore, the conductive metal part with a retractable distance is Z-shaped, the upper end face of the Z-shaped conductive metal part corresponds to the position of the conductive end face, and is in surface contact with the conductive end face when the captive screw is screwed in, and the lower end face of the Z-shaped conductive metal part is welded to the contact surface of the PCB board.

[0008] Furthermore, a positioning piece is provided on one side of the conductive metal piece in contact with the PCB board, and there are a plurality of positioning pieces, which are evenly arranged around the contact surface of the conductive metal piece in contact with the PCB board.

[0009] Furthermore, the screw portion is coated with an insulating layer at one end close to the conductive end surface.

[0010] According to the second aspect of the embodiments of the present specification, a device with a captive screw trigger switch structure is provided, comprising a captive screw, an elastic component, a mounting seat and a device mainboard, the elastic component being arranged in the mounting seat, the elastic component comprising a PCB board and a conductive elastic seat, the conductive elastic seat being fixedly arranged on the PCB board, the captive screw comprising a conductive end face and a screw portion having an insulating layer, the screw portion of the captive screw passing through the conductive elastic seat and the PCB board, and the PCB board lead being electrically connected to a power interface of the device mainboard; when the captive screw is screwed in, the conductive end face of the captive screw contacts the conductive elastic seat, triggering the power interface to be powered on and connecting the electrical signal; when the captive screw is screwed out, the conductive elastic seat contacts the insulating layer of the screw portion of the captive screw, cutting off the power on the power interface.

[0011] Preferably, the conductive elastic seat is a conductive metal piece with a retractable distance, and the conductive metal piece is surface-welded to the PCB board.

[0012] Furthermore, the conductive metal part with a retractable distance is Z-shaped, the upper end face of the Z-shaped conductive metal part corresponds to the position of the conductive end face, and contacts the conductive end face when the captive screw is screwed in, and the lower end face of the Z-shaped conductive metal part is welded to the contact surface of the PCB board.

[0013] Furthermore, a positioning piece is provided on one side of the conductive metal piece in contact with the PCB board, and a plurality of positioning pieces are evenly arranged around the contact surface of the conductive metal piece in contact with the PCB board.

[0014] Furthermore, the screw portion is coated with an insulating layer at one end close to the conductive end surface.

[0015] The technical solutions provided by the embodiments of this specification may have the following beneficial effects:

[0016] In the embodiments of this specification, the micro switch function can be realized by using a captive screw. No matching wrench, button and other structures are required to realize the micro switch function. The present invention has a compact structure, realizes the micro switch function without perception, has unlimited application scenarios, and is highly innovative.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0019] Figure 1 It is an exploded view of the trigger switch of this application;

[0020] Figure 2a This is a schematic diagram of the trigger switch of this application when it is connected;

[0021] Figure 2b This is a schematic diagram of the application when the trigger switch is disconnected;

[0022] Figure 3 It is a partial view of the device of the present application;

[0023] Figure 4 is another partial view of the device of the present application;

[0024] Figure 5 This is a partial view of the lead connection of the device of this application

[0025] Number Description:

[0026] 1- Capable screw; 1a- Conductive end face; 1b- Screw part; 1c- Screw head; 2- Mounting seat; 3a- Z-shaped conductive metal piece; 3b- PCB board; 3b1- Through hole; 4- Main board; 41- Power interface; 5- Groove; 6- Lead wire DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0028] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] Next, the embodiments of this specification are described in detail.

[0030] like Figure 1As shown, a captive screw trigger switch structure includes a captive screw 1, an elastic component and a mounting seat 2. The elastic component is arranged in the mounting seat. The elastic component includes a PCB board 3b and a conductive elastic seat, and the conductive elastic seat is fixedly arranged on the PCB board 3b. The captive screw includes a screw head 1c and a screw part 1b, and the screw part has an insulating layer. The insulating layer material is coated on the outside of the screw part, and a conductive end face 1a is also provided on the screw part, and the conductive end face and the insulating layer are arranged dependently. The insulating layer can be the screw part from the position of the conductive end face to the end of the screw part, or it can be only from the position of the conductive end face to a part of the screw part. A through hole 3b1 is provided at the corresponding position on the conductive elastic seat and the PCB board, and the screw part 1b of the captive screw passes through the through hole of the conductive elastic seat and the PCB board. As shown Figure 2a As shown, when the captive screw is screwed into the conductive elastic seat and the PCB board, the conductive end surface 1a of the captive screw contacts the conductive elastic seat to trigger the electrical signal. Figure 2b As shown, when the captive screw is unscrewed, the conductive elastic seat contacts the insulating layer of the screw part of the captive screw and cannot be used to trigger an electrical signal. In the embodiment of the present application, the micro switch function can be realized by using a captive screw. There is no need for matching wrenches, buttons and other structures to realize the micro switch function. The present invention has a compact structure, realizes the micro switch function without perception, has unlimited application scenarios, and is highly innovative. The insulating layer can be a sleeve of hard plastic.

[0031] The conductive elastic seat in the embodiment of the present application is a conductive metal part with a retractable distance, such as copper or iron. The conductive metal part and the PCB board are surface welded. As a preferred embodiment, the conductive metal part is Z-shaped, and the upper end face of the Z-shaped conductive metal part 3a corresponds to the position of the conductive end face 1a, and contacts the conductive end face when the captive screw is screwed in. The lower end face of the Z-shaped conductive metal part is welded to the contact surface of the PCB board. The contact surface of the Z-shaped conductive metal part is large and stable. In order to facilitate the contact between the conductive metal part and the PCB board, a positioning piece (not shown) is provided. There are several positioning pieces, which are evenly arranged around the contact surface where the conductive metal part contacts the PCB board. The positioning piece here is in the shape of a long strip. The welding method can be to apply solder glue on the contact surface of the conductive metal part, install and position it through the long strip positioning piece of the conductive metal part, and heat the solder glue to weld and fix it.

[0032] The present application also provides a device with a non-loose screw trigger switch structure, such as Figure 3-Figure 5, including a captive screw, an elastic component, a mounting seat and a device mainboard 4, the elastic component is arranged in the mounting seat, the elastic component includes a PCB board and a conductive elastic seat, the conductive elastic seat is fixedly arranged on the PCB board, the captive screw includes a conductive end face and a screw part with an insulating layer, the screw part of the captive screw passes through the conductive elastic seat and the PCB board, and the PCB board lead is electrically connected to the power interface of the device mainboard. The PCB board lead 6 is along the device side wall groove 5 to the power interface 41 on the mainboard 4. After the lead is arranged in the groove, the foam is stuffed in the groove. After the device is installed, the foam presses the lead, and the lead is not easy to fall out of the groove. When the captive screw is screwed in, the conductive end face of the captive screw contacts the conductive elastic seat, triggering the power interface to power on and connecting the electrical signal; when the captive screw is screwed out, the conductive elastic seat contacts the insulating layer of the screw part of the captive screw, cutting off the power on the power interface. The mounting seat here is the mounting seat of the device wrench. The elastic component is embedded in the mounting seat. As a preferred embodiment, the screw portion is coated with an insulating layer at one end close to the conductive end surface.

[0033] As a preferred embodiment, the conductive elastic seat is a conductive metal piece with a retractable distance, and the conductive metal piece is surface-welded with the PCB board. As a further preferred embodiment, the conductive metal piece with a retractable distance is Z-shaped, and the upper end surface of the Z-shaped conductive metal piece contacts the conductive end surface when the captive screw is screwed in, and the lower end surface of the Z-shaped conductive metal piece is welded with the contact surface of the PCB board.

[0034] A positioning piece (not shown) is provided on the side of the conductive metal piece that contacts the PCB board. There are several positioning pieces that are evenly arranged around the contact surface of the conductive metal piece and the PCB board.

[0035] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0036] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the invention claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0037] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0038] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A captive screw trigger switch structure, comprising a captive screw, an elastic component and a mounting seat, characterized in that: The elastic component is arranged in the mounting seat, the elastic component includes a PCB board and a conductive elastic seat, the conductive elastic seat is fixedly arranged on the PCB board, the captive screw includes a conductive end face and a screw part with an insulating layer, the screw part of the captive screw passes through the conductive elastic seat and the PCB board; when the captive screw is screwed in, the conductive end face of the captive screw contacts the conductive elastic seat for triggering an electrical signal; when the captive screw is screwed out, the conductive elastic seat contacts the insulating layer of the screw part of the captive screw and cannot be used to trigger an electrical signal.

2. The captive screw trigger switch structure according to claim 1, characterized in that: The conductive elastic seat is a conductive metal piece with a retractable distance, and the conductive metal piece is surface-welded with the PCB board.

3. The captive screw trigger switch structure according to claim 2, characterized in that: The conductive metal part with a retractable distance is Z-shaped, the upper end face of the Z-shaped conductive metal part corresponds to the position of the conductive end face, and contacts the conductive end face when the captive screw is screwed in, and the lower end face of the Z-shaped conductive metal part is welded to the contact surface of the PCB board.

4. The captive screw trigger switch structure according to claim 2 or 3, characterized in that: A positioning piece is provided on the side of the conductive metal piece that contacts the PCB board. There are a plurality of positioning pieces that are evenly arranged around the contact surface of the conductive metal piece and the PCB board.

5. The captive screw trigger switch structure according to claim 4, characterized in that: The screw portion is coated with an insulating layer at one end close to the conductive end surface.

6. A device with a captive screw trigger switch structure, comprising a captive screw, an elastic component, a mounting seat and a device mainboard, characterized in that: The elastic component is arranged in the mounting seat, the elastic component includes a PCB board and a conductive elastic seat, the conductive elastic seat is fixedly arranged on the PCB board, the captive screw includes a conductive end face and a screw part with an insulating layer, the screw part of the captive screw passes through the conductive elastic seat and the PCB board, and the PCB board lead is electrically connected to the power interface of the device motherboard; when the captive screw is screwed in, the conductive end face of the captive screw contacts the conductive elastic seat, triggering the power interface to power on and connecting the electrical signal; when the captive screw is screwed out, the conductive elastic seat contacts the insulating layer of the screw part of the captive screw, cutting off the power on the power interface.

7. The device with a captive screw trigger switch structure according to claim 6, characterized in that: The conductive elastic seat is a conductive metal piece with a retractable distance, and the conductive metal piece is surface-welded with the PCB board.

8. The device with a captive screw trigger switch structure according to claim 7, characterized in that: The conductive metal part with a retractable distance is Z-shaped, the upper end face of the Z-shaped conductive metal part corresponds to the position of the conductive end face, and contacts the conductive end face when the captive screw is screwed in, and the lower end face of the Z-shaped conductive metal part is welded to the contact surface of the PCB board.

9. The device with a captive screw trigger switch structure according to claim 7 or 8, characterized in that: A positioning piece is provided on the side of the conductive metal piece that contacts the PCB board, and a plurality of positioning pieces are evenly arranged around the contact surface of the conductive metal piece that contacts the PCB board.

10. The device with a captive screw trigger switch structure according to claim 9, characterized in that: The screw portion is coated with an insulating layer at one end close to the conductive end surface.

Images