CN2577425Y - Embedded switches for electronic devices - Google Patents

Abstract

An embedded switch of an electronic device, one end of which is provided with a pressing part, the other end of which is provided with a plurality of pins and is welded on a circuit board, the switch pressing part just protrudes out of the edge of the circuit board to be parallel to the circuit board, and the pressing part is provided with an outer diameter which is slightly larger than the outer edge of a switch body; a metal shell is wrapped on the switch body, the lower end of the metal shell is provided with at least one pin, and the pins are connected with the circuit board together so that the outer edge of the pressing part is abutted against the metal shell; the circuit board is arranged in the shell of an electronic device, so that the switch can be prevented from being pressed into the shell of the electronic device due to overlarge contact pressure, and the damage caused by electric sparks can be avoided.

Description

Embedded switches for electronic devices

technical field

The utility model relates to a switch of an electronic device, in particular to a switch whose body is fixed by a metal shell so that when the switch pressing part is pressed, excessive contact pressure can be avoided, and the switch is pressed into an electronic device. Embedded switch of the device.

Background technique

Referring to FIG. 1 , the embedded switch of a general conventional electronic device is provided with a switch 10. The front end of the switch 10 is provided with a pressing portion 13, and the rear end is provided with a plurality of pins 11. These pins 11 are bent at right angles, The end is welded on a circuit board 20 so that the pressing part 13 of the switch 10 just protrudes from the edge of the circuit board 20 and is parallel to the circuit board 20. The pressing part 13 is provided with a diameter slightly larger than that of the switch 10 The edge 15 of the body, and the electronic device is respectively provided with an upper casing 31 and a lower casing 33, the upper and lower casings 31, 33 cover up and down, and the circuit board 20 is installed on the upper and lower casings 31, 33 In the accommodation space between 33, the upper housing 31 is provided with an opening 311 at the position corresponding to the switch 10, the size of the opening 311 matches the body of the switch 10, so that the upper and lower housings 31, 33 cover When appropriate, the pressing portion 13 of the switch 10 can protrude from the upper housing 31, and the edge 15 of the pressing portion 13 abuts against the housing around the opening 311. When the user touches the pressing portion 13 Since the edge 15 of the pressing portion 13 abuts against the casing around the opening 311 , the force of the user's pressing can be counteracted, preventing the switch 10 from being pressed into the upper casing 31 . However, the opening 311 needs to be provided with a higher height for matching the height of the switch 10, so that when the upper and lower housings 31 and 33 are covered, a gap is exposed below the switch 10, and an upward extension needs to be provided on the lower housing 33. The cover plate 331 is used to cover the gap, thus affecting the appearance of the electronic device.

Referring to Fig. 2, in order to solve the above-mentioned unsightly problem, the current method is to insert the circuit board 20 into the housing space of the housing 31 of the electronic device, and set the housing 31 at the position corresponding to the switch 10. There is an opening 313, the size of the opening 313 matches the body of the switch 10 and is smaller than the edge 15 of the pressing portion 13 of the switch 10, so that the edge 15 of the pressing portion 13 of the switch 10 is against the casing around the opening 313 On the other side of the casing 31 opposite to the opening 313, there is another opening 314 for inserting the circuit board 20, the circuit board 20 can be inserted through the opening 314, so that the circuit board 20 is installed on the After entering the accommodation space of the housing 31, install the switch 10 on the opening 313, then weld the pin 11 of the switch 10 on the circuit board 20, and finally cover the opening with a back cover 33 314, since the edge 15 of the pressing part 13 is against the casing around the opening 313, the switch 10 can be prevented from being pressed into the casing 31. However, although this method can solve the problem of unsightly appearance, it will cause The trouble in processing increases the processing procedure, thus leading to the increase of production cost.

Contents of the invention

In view of the fact that the embedded switches of conventional electronic devices complicate the processing procedures during assembly and thus increase the production cost, I have carefully studied the above-mentioned defects based on my years of experience in manufacturing electronic devices and technology accumulation. A kind of solution, after continuous research, experiment and improvement, finally develops and designs this utility model, and can abandon many shortcomings of traditional technology.

The main purpose of the present utility model is to provide an embedded switch of an electronic device. The switch body is coated with a metal shell, and the lower end of the metal shell is provided with at least one pin connected with the circuit board. When the circuit board and the switch are installed in the housing of the electronic device, the pressing part of the switch can protrude out of the installation port of the housing of the electronic device, and when the switch is pressed, the switch can be prevented from being pressed into the housing of the electronic device. In the case, the electromagnetic wave generated by the current surge at the moment the switch is turned on can be guided into the case of the electronic device, so as to avoid the damage caused by the electric spark generated by the switch.

In order to achieve the above purpose, the embedded switch of an electronic device of the present invention includes a switch, one end of which is provided with a pressing part, and the other end is provided with several pins, and these pins are bent at right angles, and the ends are welded on On a circuit board, and the switch pressing part just protrudes from the edge of the circuit board and is parallel to the circuit board. The pressing part is provided with an outer edge with an outer diameter slightly larger than the switch body. It is characterized in that: a metal The casing is covered on the switch body, and the lower end of the metal casing is provided with at least one pin, and the pins are connected with the circuit board, so that the outer edge of the pressing part is against the metal casing and the circuit board is installed in the housing of an electronic device, and the pressing part of the switch protrudes from the installation port of the housing of the electronic device. in;

The position of the circuit board corresponding to the pins of the metal shell is provided with through holes matching the pins, and the pins can be inserted into the through holes and welded in the through holes, so that the The metal shell is connected with the circuit board.

The edge of the metal shell corresponding to the outer edge of the switch pressing part is provided with a vertical surface, and the outer edge of the switch pressing part abuts against the vertical surface.

Since the switch body of the present invention is fixed to the metal shell, the metal shell is fixed to the circuit board, and the circuit board is installed in the housing of the electronic device, when the pressing part of the switch is pressed, it can be avoided due to excessive The contact force presses the switch into the housing of the electronic device, causing the pins of the switch to break away from the circuit board, resulting in poor electrical contact; and the metal housing passes through the circuit board and the housing of the electronic device. The body is overlapped, and the electromagnetic wave (EMI) generated when switching the switch can be introduced into the housing of the electronic device to avoid the leakage of the electromagnetic wave, so that the electric spark generated in the abnormal state can be absorbed by the metal shell body to avoid unexpected damage caused by electric sparks.

Description of drawings

Figure 1 is a three-dimensional schematic diagram (1) of a conventional embedded switch.

Fig. 2 is a three-dimensional schematic diagram (2) of a conventional embedded switch.

Fig. 3 is a three-dimensional exploded view of the utility model.

Fig. 4 is a three-dimensional schematic diagram of the utility model.

Detailed ways

In order to have a further understanding and understanding of the purpose, technical features and effects of the present utility model, a preferred embodiment is given hereby, and the detailed description is as follows in conjunction with the accompanying drawings:

Referring to Fig. 3, it is a preferred embodiment of the present utility model, an embedded switch 30 of an electronic device, one end is provided with a pressing part 31, and the other end is provided with several pins 33, and these pins 33 are bent into At right angles, the end is welded on a circuit board 20. The pressing part 31 of the switch 30 just protrudes from the edge of the circuit board 20 and is parallel to the circuit board 20. The pressing part 31 is provided with an outer diameter slightly larger than the switch. The outer edge 311 of the 30 body, the switch 30 body is coated with a metal shell 35, and the lower end of the metal shell 35 is provided with at least one pin 351, and these pins 351 are connected with the circuit board 20, so that The outer edge 311 of the pressing portion 31 abuts against the metal shell 35 .

Referring to FIG. 4 , the housing 40 of the electronic device is provided with an installation opening 41 corresponding to the position of the switch 30 . Edge 311, when the switch 30 is installed in the installation port 41, its pressing part 31 can protrude from the housing 40; the housing 40 is provided with an opening 42 on the other side of the installation port 41 for the circuit board 20 can be inserted into the housing 40 through the opening 42, and installed in the accommodation space of the housing 40, the housing 40 is provided with a back cover 45, when the circuit board 20 is installed in the housing 40 of the electronic device , the opening 42 can be covered by the back cover 45 to protect the circuit board 20 and the electronic components mounted on the circuit board 20 .

Referring to Figures 3 and 4, when assembling, install the circuit board 20 in the housing 40 of the electronic device, so that the pressing part 31 of the switch 30 protrudes from the installation port 41 of the housing 40 of the electronic device, and its The main body is located in the accommodation space of the housing 40; thus, by fixing the metal housing 35 to the switch 30, when the pressing part 31 of the switch 30 is pressed, excessive contact pressure can be avoided, and the The switch 30 is pressed into the housing 40 of the electronic device, causing the pin 33 of the switch 30 to break away from the circuit board 20, resulting in poor electrical contact. The body 40 is overlapped, so that the electromagnetic wave (EMI) generated by the instantaneous current surge when the switch 30 is turned on can be introduced into the electronic device housing 40 to avoid the leakage of the electromagnetic wave.

Referring to FIG. 3 , the circuit board 20 is provided with perforations 21 corresponding to the pins 351 of the metal shell 35 , and the pins 351 of the metal shell 35 can be inserted into the through holes. 21, and weld the metal casing 35 pins 351 in the through holes 21 by welding, so that the metal casing 35 and the circuit board 20 are connected together. When the circuit board 20 enters the tin furnace, When soldering the electronic components plugged thereon, the pins 351 of the metal shell 35 can be soldered to the through holes 21 at the same time, which can save processing time.

Referring to Figures 3 and 4, the metal shell 35 can be tightly fitted to the installation port 41, so that the electric spark generated when the electronic device is not in normal operation can be blocked by the metal shell 35 to avoid electric sparks. unforeseen damage.

3 and 4, the metal shell 35 is provided with a vertical surface 353 corresponding to the edge of the outer edge 311 of the pressing part 31 of the switch 30, so that the outer edge 311 of the pressing part 31 of the switch 30 abuts against the vertical surface 353 to Enlarging the area where the metal shell 35 abuts against the switch 30 increases the force for fixing the switch 30 .

When the utility model is implemented, the body of the switch 30 can be fixed through the metal shell 35, so that when the pressing part 31 of the switch 30 is pressed, the switch 30 can be prevented from being pressed in due to excessive contact pressure. In the housing 40 of the electronic device, the pin 33 of the switch 30 may be separated from the circuit board 20, resulting in poor electrical contact; and the metal housing 35 is overlapped with the housing 40 of the electronic device. The electromagnetic wave (EMI) generated when the switch 30 is switched can be introduced into the casing 40 of the electronic device, so that the leakage of the electromagnetic wave can be avoided, and the metal casing 35 can be tightly sealed to the installation port 41, so that no Electric sparks generated under normal conditions can be blocked by the metal shell 35 to avoid unexpected damage caused by electric sparks.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model. Any person familiar with the art can easily conceive of various methods within the spirit and principles of the present utility model Changes and modifications should all be covered within the scope of patent protection defined by the claims of the utility model.

Claims (3)

1. the baried type switch of an electronic installation, comprise a switch, the one end is provided with a press section, the other end is provided with several pins, and these pins are bent into the right angle, and end is welded on the circuit board, and this switch press portion just protrudes out the edge of this circuit board, and parallel with this circuit board, this press section is provided with the outer rim that an external diameter is slightly larger than this Switch main body, it is characterized in that:

One metal shell is coated on this Switch main body, and this metal shell lower end is provided with at least one pin, and these pins are connected together mutually with this circuit board, and the outer rim of this press section is resisted against on this metal shell; This circuit board is installed in the housing of an electronic installation again, and the press section of this switch then convexedly stretches in the installing port of this case of electronic device.

2. according to the baried type switch of the described electronic installation of claim 1, it is characterized in that: described circuit board is on should the position of metal shell pin, be provided with the perforation that matches with these pins, these pins can be inserted in these perforation, and be welded in these perforation, this metal shell is connected together mutually with circuit board.

3. according to the baried type switch of the described electronic installation of claim 1, it is characterized in that: described metal shell is provided with a vertical plane to the edge of outer rim that should switch press portion, and the outer rim of this switch press portion then is resisted against on this vertical plane.

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