CN111180962A

CN111180962A - Detection switch, terminal equipment's cassette and terminal equipment

Info

Publication number: CN111180962A
Application number: CN201911392022.6A
Authority: CN
Inventors: 黄汉杰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-19

Abstract

The embodiment of the application provides a detect cassette and terminal equipment of switch, terminal equipment, because the elastic arm the linking arm with the detection arm is along encircleing conductive terminal's direction arranges in proper order for elastic arm and linking arm all are located the linking arm towards conductive terminal's one side, the elastic arm the linking arm with connect gradually into roughly U type between the detection arm three, conductive terminal is located the elastic arm the linking arm with the detection arm three encloses the space range of the roughly U type of establishing for the space of electrically conductive arm has obtained abundant utilization, and the whole space that occupies of detection switch reduces, is favorable to the miniaturization of device. Meanwhile, the structural shapes, sizes and position relations of the mounting arm, the elastic arm and the connecting arm can be set according to the original design requirements, the reliability of the connection and disconnection of the conductive arm and the conductive terminal cannot be reduced, and the working reliability of the detection switch is also ensured.

Description

Detection switch, terminal equipment's cassette and terminal equipment

Technical Field

The application relates to the technical field of communication equipment, in particular to a card seat for detecting a switch and terminal equipment and the terminal equipment.

Background

The existing detection switch realizes the change of voltage by closing and opening two conductive pieces, thereby realizing the function of the detection switch. How to realize the miniaturization of the detection switch and further miniaturize the corresponding device comprising the detection switch is a difficult problem faced by those skilled in the art.

Disclosure of Invention

In view of this, embodiments of the present application are expected to provide a detection switch, a card socket of a terminal device, and a terminal device, which reduce the space occupied by the detection switch without reducing the operational reliability of the detection switch.

To achieve the above object, a first aspect of embodiments of the present application provides a detection switch, including:

a conductive terminal; and

the conductive arm comprises a mounting arm, an elastic arm, a connecting arm and a detection arm which are sequentially connected, the mounting arm is fixed relative to the conductive terminal, and the elastic arm, the connecting arm and the detection arm are sequentially arranged along the direction surrounding the conductive terminal;

the detection arm can be selectively abutted against or disengaged from the conductive terminal.

Further, in the above embodiment, a first included angle is formed between the mounting arm and the elastic arm and towards one side of the conductive terminal, and the first included angle is an acute angle.

Further, in the above embodiment, the mounting arm is formed with a connection pin, and the connection pin extends along the mounting arm toward an area of the first included angle.

Further, in the above embodiment, the conductive terminal has an abutting surface abutting against the detection arm, and the connection arm is perpendicular to the abutting surface.

Further, in the above embodiment, the detection arm is perpendicular to the connection arm.

Further, in the above embodiment, a second included angle is formed between the connection arm and the elastic arm and towards one side of the conductive terminal, and the second included angle is an acute angle.

A second aspect of the embodiments of the present application provides a card socket for a terminal device, including:

a housing assembly; and

in the detection switch of any one of the above aspects, the conductive terminal and the conductive arm are both mounted on the housing assembly.

Further, in the above embodiment, the housing assembly includes:

the shell is made of metal, the conductive terminals are electrically connected with the shell, and the shell is provided with a mounting surface;

the insulating main body is arranged on the mounting surface, the conductive arm is arranged on one side, deviating from the mounting surface, of the insulating main body, the conductive arm and the shell are arranged at intervals, and the mounting arm is fixedly connected with the insulating main body.

A third aspect of the embodiments of the present application provides a terminal device, including:

a detection circuit;

in any of the above card holders, the detection switch is electrically connected to the detection circuit; and

the card support is abutted to the conductive arm to enable the detection arm to be separated from the conductive terminal when the card support moves to a preset position on the card seat; when the card support is separated from the card seat, the detection arm is abutted to the conductive terminal.

Further, in the above embodiment, the detection circuit is formed with a ground pin and a high level pin, the conductive terminal is electrically connected to the ground pin, and the conductive arm is connected to the high level pin.

The detection switch of this application embodiment, because the elastic arm the linking arm with the detection arm is along encircleing conductive terminal's direction arranges in proper order for elastic arm and linking arm all are located the linking arm towards conductive terminal's one side, the elastic arm the linking arm with connect gradually into roughly U type between the detection arm three, conductive terminal is located the elastic arm the linking arm with the detection arm three encloses the space range of the roughly U type of establishing, makes conductive arm's space obtain abundant utilization, and the whole space that occupies of detection switch reduces, is favorable to the miniaturization of device. Meanwhile, the structural shapes, sizes and position relations of the mounting arm, the elastic arm and the connecting arm can be set according to the original design requirements, the reliability of the connection and disconnection of the conductive arm and the conductive terminal cannot be reduced, and the working reliability of the detection switch is also ensured.

Drawings

FIG. 1 is a schematic diagram of a prior art detection switch;

FIG. 2 is a schematic structural diagram of a card socket according to an embodiment of the present application;

FIG. 3 is an enlarged view of the structure of FIG. 2 at position A;

FIG. 4 is a schematic structural diagram of a conductive arm;

FIG. 5 is an exploded view of a cartridge according to one embodiment of the present application; and

fig. 6 is a schematic diagram of a transverse direction and a card holder insertion direction according to an embodiment of the present application.

Description of reference numerals:

a detection switch 1; a conductive terminal 11; an abutment surface 111; a conductive arm 12; a mounting arm 121; a connection pin 1211; a resilient arm 122; a connecting arm 123; a detection arm 124; a first included angle theta 1; a second included angle θ 2; a first transition arm 125; a second transition arm 126; a third transition arm 127;

a housing assembly 2; a housing 21; a mounting surface 211; an insulating body 22; a through hole 221.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, the lateral direction is a direction a shown in fig. 6, and the insertion direction of the card holder 1 is a direction B shown in fig. 6. It will be appreciated that, in general, the direction B is perpendicular to the direction a.

Before describing the embodiments of the present application, it is necessary to analyze the reason why the detection switch 1 in the prior art occupies a large space as a whole, and obtain the technical solution of the embodiments of the present application through reasonable analysis.

It is found by analysis that referring to fig. 1, the conventional detection switch 1 generally has a conductive arm 12 and a conductive terminal 11, and the conductive arm 12 and the conductive terminal 11 can be closed or opened. Conductive arm 12 is including consecutive installation arm 121, elastic arm 122, linking arm 123 and detection arm 124, installation arm 121 is fixed for conductive terminal 11, conductive terminal 11 is located the one side that the linking arm 123 deviates from elastic arm 122, and detection arm 124 is also located the one side that the linking arm 123 deviates from elastic arm 122 for forming the electricity with conductive arm 12 butt and being connected, structural style is such, make elastic arm 122, linking arm 123 and detection arm 124 interconnect form Z type structure, elastic arm 122 and detection arm 124 extend to the both sides of linking arm 123 respectively, all can occupy certain space, conductive terminal 11 is located one side that the linking arm 123 deviates from elastic arm 122 and makes linking arm 123 unable make full use of towards the space on one side of elastic arm 122, make the whole space that occupies of detection switch 1 great.

In view of this, an embodiment of the present invention provides a detection switch 1, please refer to fig. 3 and fig. 4, in which the detection switch 1 includes a conductive terminal 11 and a conductive arm 12. The conductive arm 12 includes a mounting arm 121, a resilient arm 122, a connecting arm 123 and a detecting arm 124 connected in sequence, the mounting arm 121 is fixed with respect to the conductive terminal 11, and the resilient arm 122, the connecting arm 123 and the detecting arm 124 are arranged in sequence along a direction surrounding the conductive terminal 11. The detection arm 124 can selectively abut against or disengage from the conductive terminal 11.

It can be understood that, in the normal state, that is, on the side of the conductive terminal 11 away from the detecting arm 124, no external force toward the conductive terminal 11 acts on the conductive arm 12, the detecting arm 124 abuts against the conductive terminal 11 under the elastic force of the elastic arm 122 to form an electrical connection, and the detecting switch 1 is in the closed state. When an external force toward the conductive terminal 11 acts on the conductive arm 12 on a side of the conductive terminal 11 away from the detecting arm 124, the detecting arm 124 is driven by the connecting arm 123 to correspondingly move in a direction away from the conductive terminal 11, so that the detecting arm 124 is disconnected from the conductive terminal 11, and the detecting switch 1 is in a disconnected state. The state monitoring of the detection switch 1 can be realized by detecting the closing and opening of the switch 1.

Compared with the detection switch 1 in the prior art, in the detection switch 1 of the embodiment of the present application, because the elastic arm 122, the connecting arm 123 and the detection arm 124 are sequentially arranged along the direction surrounding the conductive terminal 11, the elastic arm 122 and the connecting arm 123 are both located on one side of the connecting arm 123 facing the conductive terminal 11, the elastic arm 122, the connecting arm 123 and the detection arm 124 are sequentially connected into a substantially U shape, the conductive terminal 11 is located in a substantially U-shaped space range surrounded by the elastic arm 122, the connecting arm 123 and the detection arm 124, so that the space of the conductive arm 12 is fully utilized, the space occupied by the detection switch 1 as a whole is reduced, and the miniaturization of the device is facilitated.

Specifically, compared with the original detection switch 1, the detection switch 1 of the embodiment of the present application can enable the structural shapes, sizes and positional relationships of the mounting arm 121, the elastic arm 122 and the connecting arm 123 to be set according to the original design requirements, and the reliability of the closing and opening of the conductive arm 12 and the conductive terminal 11 is not reduced, that is, the reliability of the operation of the detection switch 1 is also ensured. The detecting arm 124 extends along the connecting arm 123 toward the end of the elastic arm 122 connected to the mounting arm 121, so that the detecting arm 124 abuts against the conductive terminal 11, and space is saved.

It can be understood that the length of the detection arm 124 of the embodiment of the present application can also maintain the original design length of the detection switch 1, which is beneficial to maintaining the better reliability of the detection switch 1.

It can be understood that, in the specific design and manufacturing process, referring to fig. 6, compared to the existing detection switch 1, equivalently, the conductive terminal 11 moves from the left side of the connecting arm 123 to the right side of the connecting arm 123, so that the area surrounded by the conductive arm 12 of the detection switch 1 on the right side of the connecting arm 123 is fully utilized, and the space on the right side of the connecting arm 123 is saved, so that the detection switch 1 saves the space in the transverse direction on the premise of not reducing the working reliability.

In an embodiment of the present application, referring to fig. 4, a first included angle θ 1 is formed between the mounting arm 121 and the elastic arm 122 and faces one side of the conductive terminal 11, and the first included angle θ 1 is an acute angle. In this way, the mounting arm 121 may extend toward the connecting arm 123, so that the space occupied while the elastic arm 122 obtains better elasticity is small.

In an embodiment of the present application, referring to fig. 4, the mounting arm 121 is formed with a connection pin 1211, and the connection pin 1211 extends along the mounting arm 121 in a region facing the first included angle θ 1. Thus, the connecting pins 1211 can fully utilize the area surrounded by the conductive arm 12, thereby saving the space occupied by the connecting pins 1211 and being beneficial to reducing the space occupied by the detection switch 1.

In an embodiment of the present application, referring to fig. 4, the conductive terminal 11 is formed with an abutting surface 111 abutting against the detecting arm 124, and the connecting arm 123 is perpendicular to the abutting surface 111. Due to the structure, the stress direction of the connecting arm 123 is parallel to that of the connecting arm 123, the stress condition of the connecting arm 123 is better, and irrelevant deformation of the connecting arm 123 is less or cannot be generated.

In an embodiment of the present application, please refer to fig. 4, the detecting arm 124 is perpendicular to the connecting arm 123. With such a structure, the detecting arm 124 can be in good contact with the conductive terminal 11 when abutting against the conductive terminal 11, so as to increase the contact area and facilitate the formation of electrical connection.

In an embodiment of the present application, referring to fig. 4, a second included angle θ 2 is formed between the connection arm 123 and the elastic arm 122 toward the conductive terminal 11, and the second included angle θ 2 is an acute angle. With such a structure, the connecting arm 123 can be prevented from extending for an excessively long distance in a direction away from the connecting end of the elastic arm 122 and the mounting arm 121, which is beneficial to reducing the space occupied by the whole detection switch 1.

In an embodiment of the present application, referring to fig. 4, the conductive arm 12 further includes a first transition arm 125 located between the mounting arm 121 and the elastic arm 122, a second transition arm 126 located between the elastic arm 122 and the connecting arm 123, and a third transition arm 127 located between the connecting arm 123 and the detecting arm 124. The first transition arm 125, the second transition arm 126 and the third transition arm 127 are all arc-shaped, two ends of the first transition arm 125 are respectively tangent to the installation arm 121 and the elastic arm 122, two ends of the second transition arm 126 are respectively tangent to the elastic arm 122 and the connecting arm 123, and two ends of the third transition arm 127 are respectively tangent to the connecting arm and the detection arm 124. Such a configuration is advantageous for avoiding stress concentration of the conductive arm 12.

Normally, one of the conductive terminal 11 and the conductive arm 12 is connected to a high level, and the other of the conductive terminal 11 and the conductive arm 12 is connected to a low level. Illustratively, the conductive terminal 11 is connected to a high level, and the conductive arm 12 is connected to a low level; alternatively, the conductive terminal 11 is connected to the low level and the conductive arm 12 is connected to the high level. In the embodiment of the present application, the conductive terminal 11 is connected to the low level, and the conductive arm 12 is connected to the high level.

It will be appreciated that the high and low levels are relative to both the level of the conductive terminal 11 and the level of the conductive arm 12.

A second aspect of the embodiments of the present application provides a terminal device, which includes a detection circuit (not shown in the figure), a card socket, and a card holder (not shown in the figure). Under the operating condition, the card support is inserted into the preset position on the card seat, and the detection circuit is used for detecting whether the card support is inserted into the preset position on the card seat.

Referring to fig. 2, 3, 4 and 5, the card socket according to the embodiment of the present application includes a housing assembly 2 and any one of the above-mentioned detection switches 1, and a conductive terminal 11 and a conductive arm 12 are both mounted on the housing assembly 2. With this configuration, the detection switch 1 is fixedly attached.

Because the detection switch 1 of any one of the above-mentioned of this application embodiment has been used in the cassette, be favorable to the miniaturization of cassette, in an embodiment, the cassette has saved 1 mm's space along transversely.

In an embodiment of the present application, the housing 21 may be an insulating housing 21, and the conductive terminal 11 is directly grounded.

The grounding in the embodiment of the present application does not refer to "earth" specifically, but refers to a common reference point in the circuit, and the voltage values of all points in the circuit are relative to the common reference point. This common reference point may or may not be connected to earth.

In order to prevent the communication card and/or the storage card in the card socket from being subjected to electromagnetic interference, in an embodiment of the present application, the housing assembly 2 includes a housing 21, the housing 21 is made of metal, and the conductive terminal 11 is electrically connected to the housing 21. In this way, the metal casing 21 can shield the interference signal by grounding.

In an embodiment of the present application, when the housing 21 is made of metal, the conductive terminal 11 is electrically connected to the housing 21, so that the conductive terminal 11 can be grounded through the housing 21.

In an embodiment of the present application, when the housing 21 is made of metal, the conductive terminal 11 and the housing 21 may be integrally formed to form a whole.

In an embodiment of the present application, when the housing 21 is made of an insulating material, the conductive arm 12 can be fixed on the housing 21.

In an embodiment of the present application, referring to fig. 2, fig. 3, fig. 4 and fig. 5, when the housing 21 is made of an insulating material, the housing 21 is formed with a mounting surface 211, the housing assembly 2 further includes an insulating main body 22, the insulating main body 22 is disposed on the mounting surface 211, the conductive arm 12 is disposed on a side of the insulating main body 22 departing from the mounting surface 211, the conductive arm 12 and the housing 21 are disposed at an interval, and the mounting arm 121 is fixedly connected to the insulating main body 22. With such a structure, the conductive arm 12 can be better prevented from directly contacting the housing 21, so as to avoid the problem that the detection switch 1 cannot normally operate due to the formation of equipotential between the conductive arm 12 and the conductive terminal 11.

In an embodiment of the present application, referring to fig. 2, fig. 3, fig. 4 and fig. 5, through holes 221 are formed on the insulating main body 22, and the conductive terminals 11 extend from one side of the insulating main body 22 facing the mounting surface 211 to one side of the insulating main body 22 away from the mounting surface 211 through the through holes 221. Thus, the conductive terminal 11 is electrically connected to the housing 21 located on the side of the insulating main body 22 facing the mounting surface 211, and simultaneously protrudes and extends to the range enclosed by the conductive arm 12 nearby toward the conductive arm 12, so as to realize the electrical connection with the detection arm 124, without the conductive terminal 11 bypassing the insulating main body 22 from other positions and then extending to the range enclosed by the conductive arm 12, which is beneficial to the miniaturization of the device.

In an embodiment of the present application, the detection switch 1 is electrically connected to the detection circuit, so that the detection circuit receives a signal of the detection switch 1 to monitor a state of the detection switch 1.

In an embodiment of the present application, the detection circuit is formed with a ground pin (not shown) and a high level pin (not shown), and the level of the high level pin is higher than that of the ground pin. The conductive terminal 11 may be electrically connected to a ground pin, and the conductive arm 12 may be electrically connected to a high-level pin.

In an embodiment of the present application, the conductive terminal 11 may be directly electrically connected to the ground pin; the housing 21 may be directly electrically connected to the ground pin, and the conductive terminal 11 may be electrically connected to the ground pin through the housing 21.

Of course, if the conductive terminal 11 is electrically connected to the high-level pin for signal detection purposes only, and no other factors are considered, it is also possible that the conductive arm 12 is electrically connected to the ground pin.

In one embodiment of the present application, the conductive arm 12 is electrically connected to the high level pin or the ground pin through the connection pin 1211.

In an embodiment of the present application, the card holder is inserted into the card socket along the insertion direction of the card holder, and during the process that the card holder is inserted into the preset position on the card socket, the card holder is located on one side of the conductive terminal 11 departing from the detecting arm 124, and pushes the conductive arm 12 to move toward the conductive terminal 11. The detecting arm 124 will correspondingly disengage from the conductive terminal 11, and the detecting switch 1 will form an open signal. The detection circuit recognizes the off signal of the detection switch 1, and can determine that the card holder is inserted into the card slot. When the card holder is inserted into a predetermined position on the card holder, the card holder abuts against the conductive arm 12, and the detecting arm 124 is separated from the conductive terminal 11.

It is understood that when the connecting arm 123 is directly connected to the elastic arm 122, the card holder can abut against the elastic arm 122, and the card holder pushes the elastic arm 122 to move toward the conductive terminal 11.

When the elastic arm 122 is connected to the connecting arm 123 through the second transition arm 126, the card holder can abut against the second transition arm 126, and the card holder pushes the second transition arm 126 to move toward the conductive terminal 11.

When the card holder is withdrawn from the card holder, that is, the card holder is separated from the card holder, the detection arm 124 is abutted against the conductive terminal 11 to form an electrical connection, and the detection circuit recognizes a closing signal of the detection switch 1 to be capable of determining that the card holder is removed from the card holder, that is, the card holder is separated from the card holder.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection switch, comprising:

a conductive terminal; and

2. The detection switch of claim 1, wherein a first included angle is formed between the mounting arm and the elastic arm toward a side of the conductive terminal, and the first included angle is an acute angle.

3. The detection switch of claim 2, wherein the mounting arm has a connection pin formed thereon, the connection pin extending along the mounting arm in a region toward the first included angle.

4. The detection switch according to claim 1, wherein the conductive terminal has an abutting surface abutting against the detection arm, and the connection arm is perpendicular to the abutting surface.

5. The detection switch of claim 4, wherein the detection arm is perpendicular to the connection arm.

6. The detecting switch according to claim 4, wherein a second included angle is formed between the connecting arm and the elastic arm toward a side of the conductive terminal, and the second included angle is an acute angle.

7. A card holder of a terminal device, comprising:

a housing assembly; and

the detection switch of any one of claims 1-6, said conductive terminal and said conductive arm both being mounted on said housing assembly.

8. The cartridge of claim 7, wherein the housing assembly comprises:

9. A terminal device, comprising:

a detection circuit;

the cartridge of claim 7 or 8, the detection switch being electrically connected to the detection circuit; and

10. The terminal device of claim 9, wherein the detection circuit is formed with a ground pin and a high level pin, the conductive terminal being electrically connected to the ground pin, and the conductive arm being connected to the high level pin.