CN110176695B

CN110176695B - Terminal device

Info

Publication number: CN110176695B
Application number: CN201910578780.0A
Authority: CN
Inventors: 姚杰
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-04-09
Anticipated expiration: 2039-06-28
Also published as: CN110176695A

Abstract

The present invention provides a terminal device, including: the magnetic field sensor comprises a shell and a magnet, wherein the shell is provided with an MIC hole; the magnet is located in the shell and used for limiting the depth of the external permanent magnet thimble inserted into the MIC hole. When the user takes the card holder, the invention avoids the damage to the internal structure of the MIC hole caused by the mistaken insertion of the user into the MIC hole.

Description

Terminal device

Technical Field

The invention relates to the technical field of communication equipment, in particular to terminal equipment.

Background

At present, terminal equipment on the market is diversified, and the design of various structures is also special. In the existing terminal equipment, a microphone hole (MIC hole for short) and a card holder jack of a card holder are also often placed in a similar place for design. Because MIC hole and card hold in the palm the shape size of jack unanimous basically, the user is very easy when the plug card holds in the palm, thinks the MIC hole mistake as the card holds in the palm the jack, inserts the MIC hole with the thimble mistake, leads to damaging the internal structure of MIC hole.

Disclosure of Invention

The embodiment of the invention provides terminal equipment, which aims to solve the problem that an internal structure of an MIC hole is damaged due to mistaken insertion of the MIC hole when a user takes a card holder.

An embodiment of the present invention provides a terminal device, including:

the device comprises a shell, a shell and a cover, wherein an MIC hole is formed in the shell;

the magnet is located in the shell and used for limiting the depth of the external permanent magnet thimble inserted into the MIC hole.

According to the embodiment of the invention, the magnet is arranged in the shell, and the magnetic force generated by the magnet limits the depth of the permanent magnet inserting needle inserted into the MIC hole. Therefore, the mobile terminal provided by the embodiment of the invention can avoid the damage to the internal structure of the MIC hole caused by the mistaken insertion of the MIC hole by a user when the user takes the card holder.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is one of structural diagrams of a terminal device according to an embodiment of the present invention;

fig. 2 is a second block diagram of a terminal device according to an embodiment of the present invention;

FIG. 3 is one of the circuit schematics of the terminal device of FIG. 2;

FIG. 4 is a second schematic circuit diagram of the terminal device of FIG. 2;

fig. 5 is a structural view of a permanent magnet thimble applied to a terminal device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Referring to fig. 1, an embodiment of the present invention provides a terminal device, where the terminal device includes:

the device comprises a shell 11, wherein an MIC hole 111 is formed in the shell 11;

and the magnet 12 is positioned in the shell 11, and the magnet 12 is used for limiting the depth of the external permanent magnet thimble inserted into the MIC hole 111.

In the embodiment of the present invention, the terminal device may include at least one of a mobile phone, a tablet computer, a wearable device, and a laptop computer, and the housing 11 may be understood as a middle frame, taking the mobile phone as an example. Typically, a MIC aperture 111 and a card-holder receptacle are provided in the housing 11, the MIC aperture 111 and the card-holder receptacle being generally relatively close and substantially similar in shape and size.

Therefore, in the terminal device provided by the embodiment of the invention, in order to avoid the situation that the thimble is mistakenly inserted into the MIC hole 111 when a user takes the card holder, the magnet 12 is arranged in the terminal device, and the magnet 12 can limit the depth of the external permanent magnet thimble inserted into the MIC hole. Specifically, when a user inserts the permanent magnet thimble into the MIC hole 111, the magnet 12 and the permanent magnet thimble can limit the permanent magnet thimble to continue moving into the MIC hole 111 through the damping effect of the magnetic poles of the same name, so that the user is prevented from inserting the permanent magnet thimble into the MIC hole. Therefore, the mobile terminal provided by the embodiment of the invention can avoid the damage to the internal structure of the MIC hole caused by the mistaken insertion of the user into the MIC hole when the user takes the card holder.

Specifically, the position of the magnet 12 may be set according to actual requirements, in an embodiment of the present invention, a limiting portion 112 for limiting a depth of an external object inserted into the MIC hole 111 is disposed in the MIC hole 111, the magnet 12 is located on a first side or a second side of the limiting portion 112, the first side and the second side of the limiting portion 112 are two opposite sides of the limiting portion 112, and an opening is formed in the housing 11 toward the MIC hole 111 on the first side of the limiting portion 112.

In this embodiment, the MIC hole 111 is substantially "Z" shaped, and includes a limiting portion 112 for limiting the depth of an external object inserted into the MIC hole 111, and a microphone is further disposed on a second side of the limiting portion 112. Since the magnets 12 are disposed at two opposite sides of the limiting portion 112, when the permanent magnet thimble is inserted into the MIC hole 111, the MIC hole 111 may be opposite to the permanent magnet thimble. The insertion depth of the permanent magnet ejector pin is better limited, so that the internal structure of the MIC hole 111 is protected.

In the embodiment of the present invention, the magnetic pole of the end of the magnet 12 facing the opening is the same as the magnetic pole of the end of the permanent magnet thimble inserted into the MIC hole 111.

Specifically, the permanent magnet thimble may include a handle portion for a user to hold and a needle head adapted to the card holder insertion hole, one end of the needle head is connected to the handle portion, and a magnetic pole of the other end is the same as a magnetic pole of one end of the magnet 12 facing the opening. Therefore, when a user inserts the needle head of the permanent magnet thimble into the MIC hole 111, the depth of the external permanent magnet thimble inserted into the MIC hole can be limited based on the principle that like magnetic poles repel each other.

Further, in other embodiments, an annular magnet adapted to the inner wall of the MIC hole 111 may be disposed between the limiting portion 112 and the opening, as long as the depth of the external permanent magnet thimble inserted into the MIC hole is limited.

The magnet 12 may be a permanent magnet or an electromagnet, and the electromagnet is described as an example in each of the following embodiments.

Further, referring to fig. 2 to 4, when the magnet 12 is an electromagnet, the terminal device further includes a magnetic force detection assembly 13 and a driving circuit 14, where the magnetic force detection assembly 13 is disposed in the MIC hole and is configured to output a voltage signal to the driving circuit 14 when the permanent magnet thimble is inserted into the MIC hole 111; the driving circuit 14 is used for controlling the electromagnet to generate a magnetic field under the condition of receiving the voltage signal.

In the embodiment of the invention, the magnetic force detection assembly 13 is arranged to detect whether the permanent magnet thimble is inserted into the MIC hole 111, so that when the permanent magnet thimble is determined to be inserted into the MIC hole 111, the driving circuit 14 can control the electromagnet to generate a magnetic field. Therefore, the embodiment of the invention can reduce the loss of electric energy and simultaneously avoid the influence of the magnetic field generated by the electromagnet on other functional components such as the antenna and the like when the permanent magnet thimble is not inserted into the MIC hole 111.

It should be noted that the structure of the driving circuit may be configured according to actual requirements, as shown in fig. 3, in an alternative embodiment, the driving circuit 14 includes a first control chip 141, a first electronic switch 142 and a first resistor R1, the first electronic switch 142 includes a first end, a second end and a control end, the first end of the first electronic switch 142 is electrically connected to a preset connection end Vs having electromotive force, the second end of the first electronic switch 142 is electrically connected to one end of the first resistor R1 through an electromagnetic coil of the electromagnet, and the control end of the first electronic switch 142 is electrically connected to the first control chip 141; the other end of the first resistor R1 is electrically connected to ground.

In an embodiment of the present invention, the first electronic switch 142 may be a switching element such as a triode, a field effect transistor, a relay, and the like. The preset connection end can be the anode of a power supply, and can also be a middle connection point with electromotive force in a certain power supply loop of the power supply. Specifically, when the user inserts the permanent magnet thimble into the MIC hole 111, the magnetic force detecting assembly 13 outputs a voltage signal to the first control chip 141, and the first control chip 141 can output a control signal to the first electronic switch 142 to control the first electronic switch 142 to be switched from the off state to the on state. At the moment, the coil of the electromagnet is electrified, so that the electromagnet generates a magnetic field, the two ends of the electromagnet respectively generate an N pole and an S pole, and the same magnetic pole generates a larger repulsive force, so that the user can be effectively prevented from continuously inserting the permanent magnet thimble into the MIC hole 111.

Further, in another optional embodiment, the driving circuit 14 is further configured to control a magnitude of a magnetic field generated by the electromagnet according to a voltage magnitude of the voltage signal, wherein the deeper the depth of the permanent magnet thimble inserted into the MIC hole 111 is, the higher the voltage of the voltage signal is, the larger the magnetic field generated by the electromagnet is.

In the embodiment of the invention, the size of the magnetic field generated by the electromagnet can be automatically adjusted according to the insertion depth of the permanent magnet thimble, so that the deeper the insertion depth of the permanent magnet thimble is, the stronger the corresponding generated magnetic field is, and the larger the resistance for inserting the permanent magnet thimble into the MIC hole 111 by a user is. That is, the deeper the user is inserted, the greater the corresponding resistance, which may further ensure reliability in avoiding damage to the internal structure of the MIC hole 111.

Optionally, the strength of the magnetic field generated by the electromagnet may be adjusted by changing the size of a resistor in a coil current loop of the electromagnet. When the resistance value of the resistor is larger, the current flowing through the coil is smaller, and the magnetic field intensity generated by the corresponding electromagnet is smaller; when the resistance value of the resistor is smaller, the current flowing through the coil is larger, and the magnetic field intensity generated by the corresponding electromagnet is larger. As shown in fig. 4, in the embodiment of the present invention, the driving circuit 14 includes a second control chip 143, a second electronic switch 144, a multiplexer 145, and at least two second resistors R2, where the second electronic switch 144 includes a first end, a second end, and a control end, the first end of the second electronic switch 144 is electrically connected to the preset connection end having electromotive force, the second end of the second electronic switch 144 is electrically connected to the common connection end of the multiplexer 145 through the electromagnetic coil of the electromagnet, and the control end of the second electronic switch 144 is electrically connected to the second control chip 143; one end of each second resistor R2 is electrically connected with a ground terminal, the other end of each second resistor R2 is connected with the connecting end of different branches in the multiplexer, and the resistance values of the second resistors R2 are different; the second control chip 143 is electrically connected to the multiplexer 145, and controls a connection state between the common connection terminal and the branch connection terminal according to a voltage level of the voltage signal.

In the embodiment of the present invention, the number of the general second resistors R2 and the number of the branch connection terminals of the multiplexer 145 may be set to be equal. That is, a second resistor R2 may be disposed at each branch connection end, and the resistances of the second resistors R2 connected to different branch connection ends are different. The multiplexer 145 may be a 4-way selector, an 8-way selector, or a 16-way selector, etc., and is not further limited herein. The connection between the second control chip 143 and the multiplexer 145 may be understood as that the GPIO port of the second control chip 143 is connected to the address selection terminal of the multiplexer 145, and the connection state between the common connection terminal and the branch connection terminal is selected by outputting a control signal. Further, in an optional embodiment, in order to improve the utilization rate of the GPIO port of the second control chip 143, a register may be further disposed between the second control chip 143 and the multiplexer 145.

Alternatively, the magnetic force detecting assembly 13 may include an induction coil or a magnetic flowmeter.

In an alternative embodiment, when the magnetic force detecting component 13 is an induction coil, the induction coil is embedded in the inner wall of the MIC hole 111, and the permanent magnet thimble can pass through the induction coil. Specifically, in this embodiment, the magnetic force detecting assembly 13 further includes an analog-to-digital converter, an input end of the analog-to-digital converter is electrically connected to two ends of the induction coil, respectively, and an output end of the analog-to-digital converter is electrically connected to the driving circuit.

In this embodiment, the induction coil may be wound around the MIC hole 111 for 1 or more turns. This induction coil can inlay in the surface of the inner wall of MIC hole 111 also can be in the inside of inner wall, specifically can set up according to actual need. The induction coil may be a copper wire, and the induction coil may be located between the limiting portion 112 and the opening.

In the embodiment of the present invention, after the thimble is inserted into the MIC hole 111, the thimble passes through the induction coil, and since the thimble contacts with the human body and carries a certain amount of electric charge, the electric charge moves directionally in the induction coil to generate an induced electromotive force with a certain waveform, and the generated induced electromotive force is sampled by the analog-to-digital converter and then output to the voltage detection pin of the second control chip 143. When the voltage of the voltage detection pin of the second control chip 143 is greater than a preset value (e.g., from a low level to a high level), it is determined that the permanent magnetic thimble is inserted into the MIC hole 111, so that the second electronic switch 144 is controlled to change from an off state to an on state according to the voltage detected by the voltage detection pin, and a corresponding second resistor R2 is selected to be connected in series with the coil of the electromagnet.

Further, the terminal device may further include a prompting component, and the prompting component may be connected to the driving circuit 14. The driving circuit 14 may further output a corresponding signal to the prompting component when the driving circuit is configured to receive the voltage signal (i.e., determine that the user inserts the permanent magnet thimble into the MIC hole 111), so as to control the prompting component to output a corresponding prompting message to prompt the user that the MIC hole 111 has been incorrectly inserted.

Further, the structure of the prompting assembly may be set according to actual requirements, for example, in an embodiment of the present invention, the prompting assembly may include at least one of a sounding device, a vibrating device and a display device.

In an alternative embodiment, the sound generating device is a speaker, and the speaker can generate an alarm prompt sound. For example, when the drive circuit 14 determines that the user inserts the permanent magnet thimble into the MIC hole 111, "please note that you have inserted a wrong hole" or "do not insert the permanent magnet thimble into the MIC hole 111" may be voice-broadcasted, and a beep may be sounded.

In another alternative embodiment, the vibrating device is a motor that can vibrate the indicator. For example, when the driving circuit 14 determines that the user inserts the permanent magnet thimble into the MIC hole 111, the motor vibrates once at a preset time interval or is always in a vibrating state. When the drive circuit 14 determines that the user has pulled the permanent magnet thimble out of the MIC hole 111, the motor may be controlled to stop vibrating.

In yet another alternative embodiment, the display device is a liquid crystal display, and the display may prompt in different forms such as text, graphics, or video. For example, when the drive circuit 14 determines that the user has inserted a permanent magnet thimble into the MIC hole 111, a corresponding hint picture (e.g. a red "X" or by an arrow indicating the correct position of the card-holder receptacle) may be output.

In the embodiment of the invention, the magnet is arranged in the shell 11, and the magnetic force generated by the magnet 12 limits the depth of the permanent magnet pin inserted into the MIC hole 111. Therefore, the mobile terminal provided by the embodiment of the invention can avoid the damage to the internal structure of the MIC hole 111 caused by the mistaken insertion of the MIC hole by a user when the user takes the card holder.

Further, referring to fig. 5, an embodiment of the present invention further provides a permanent magnetic thimble used with the above-mentioned mobile terminal, where the permanent magnetic thimble includes a handle portion 21 and a needle 22 adapted to the card holder insertion hole, one end of the needle 22 is connected to the handle portion 21, and the other end has a magnetic pole adapted to a magnet in the terminal device.

In this embodiment, the needle of the permanent-magnet thimble may be cylindrical, the handle portion 21 may be designed to be disc-shaped for holding operation, and the handle portion 21 and the needle 22 may be integrally formed.

When the permanent magnet thimble is inserted into the MIC hole of the terminal equipment, the permanent magnet thimble is limited by resistance generated by the magnet, so that the phenomenon that the inner structure of the MIC hole is damaged when a user inserts the MIC hole by mistake can be avoided.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A terminal device, comprising:

the magnet is positioned in the shell and used for limiting the depth of the external permanent magnet thimble inserted into the MIC hole;

the terminal equipment further comprises a magnetic force detection assembly and a driving circuit, wherein the magnetic force detection assembly is arranged in the MIC hole and used for outputting a voltage signal to the driving circuit under the condition that the permanent magnet thimble is inserted into the MIC hole; the driving circuit is used for controlling the electromagnet to generate a magnetic field under the condition of receiving the voltage signal;

the driving circuit is further used for controlling the size of a magnetic field generated by the electromagnet according to the voltage of the voltage signal, wherein the deeper the depth of the permanent magnet thimble inserted into the MIC hole is, the larger the voltage of the voltage signal is, the larger the magnetic field generated by the electromagnet is.

2. The terminal device of claim 1, wherein a limit portion is disposed within the MIC hole to limit a depth at which an external object is inserted into the MIC hole, the magnet is located on a first side or a second side of the limit portion, the first side and the second side of the limit portion are opposite sides of the limit portion, and the first side of the limit portion is disposed toward the MIC hole to form an opening in the housing.

3. The terminal device of claim 2, wherein the end of the magnet facing the opening has the same magnetic polarity as the end of the permanent magnet thimble inserted into the MIC hole.

4. The terminal device according to any one of claims 1 to 3, wherein the driving circuit comprises a first control chip, a first electronic switch and a first resistor, the first electronic switch comprises a first end, a second end and a control end, the first end of the first electronic switch is electrically connected with a preset connection end with electromotive force, the second end of the first electronic switch is electrically connected with one end of the first resistor through an electromagnetic coil of the electromagnet, and the control end of the first electronic switch is electrically connected with the first control chip; the other end of the first resistor is electrically connected with a grounding end.

5. The terminal device according to claim 4, wherein the driving circuit comprises a second control chip, a second electronic switch, a multiplexer and at least two second resistors, the second electronic switch comprises a first end, a second end and a control end, the first end of the second electronic switch is electrically connected with a preset connection end with electromotive force, the second end of the second electronic switch is electrically connected with a common connection end of the multiplexer through an electromagnetic coil of the electromagnet, and the control end of the second electronic switch is electrically connected with the second control chip; one end of each second resistor is electrically connected with a grounding end, the other end of each second resistor is connected with the connecting end of different branches in the multiplexer, and the resistance values of the second resistors are different; the second control chip is electrically connected with the multiplexer and controls the connection state of the common connection end and the branch connection end according to the voltage of the voltage signal.

6. A terminal device according to any one of claims 1 to 3, wherein the magnetic force detection assembly comprises an induction coil or a fluxmeter.

7. The terminal device according to claim 6, wherein when the magnetic force detecting assembly comprises the induction coil, the magnetic force detecting assembly further comprises an analog-to-digital converter, an input end of the analog-to-digital converter is electrically connected to two ends of the induction coil, respectively, and an output end of the analog-to-digital converter is electrically connected to the driving circuit.