CN214255785U - Electronic device - Google Patents

Abstract

The application discloses electronic equipment includes: a charging module; the charging interface is connected with the charging module and used for outputting a power supply signal to the charging module so as to charge the charging module; a deformation section; the first fixed end is connected with the first end of the charging protection module; the first end of the charging protection module is grounded; the elastic sheet is positioned between the deformation part and the first fixed end and is connected with the charging interface and the charging module through a circuit; wherein, when the protection module that charges is in the short circuit state, deformation takes place for deformation portion to make shell fragment and first stiff end separation, through setting up the switch module group of compriseing deformation portion, first stiff end and shell fragment, avoid the short circuit that electronic equipment can exist when charging to damage the problem that leads to unable charging.

Description

Electronic device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an electronic device.

Background

Under the condition that the voltage of a charger or a power supply grid used by the electronic equipment is unstable, the protection device is easily damaged, namely, the protection device is in a short circuit state, and the protection device can emit a large amount of heat during the short circuit to damage the electronic equipment.

In order to overcome the above damage, the related technical solution further improves the electronic device, that is, an NTC (Negative Temperature Coefficient) device is disposed around the charging port, wherein the NTC device can detect heat generated when the protection device is short-circuited, and when the NTC device detects that the protection device is short-circuited, the operation of the charging IC is cut off to protect the electronic device.

The technical personnel in the field find that in the existing electronic equipment, once the protective device is short-circuited and damaged, the electronic equipment cannot be charged, so that the electronic equipment cannot be used due to power shortage.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide electronic equipment, so that when a protective device is damaged due to short circuit, the electronic equipment can be normally charged, and the probability that the electronic equipment cannot be used due to power shortage is reduced.

In order to solve the technical problem, the present application is implemented as follows:

an embodiment of the present application provides an electronic device, including: a charging module; the charging interface is connected with the charging module and used for outputting a power supply signal to the charging module so as to charge the charging module; a deformation section; the first fixed end is connected with the first end of the charging protection module; the first end of the charging protection module is grounded; the elastic sheet is positioned between the deformation part and the first fixed end and is connected with the charging interface and the charging module through a circuit; wherein, when the protection module that charges is in the short circuit state, deformation portion takes place to deform to make shell fragment and first stiff end separation.

In this application embodiment, set up a switch module through the circuit between interface and the charging module that charges and between the protection module that charges, promptly by deformation portion, the structure that first stiff end and shell fragment are constituteed, utilize deformation portion, the switch module that first stiff end and shell fragment are constituteed controls the protection module that charges and the interface that charges and the connection status of the circuit between the module that charges, so that when the protection module that charges short circuit appears, the disconnection protection module that charges with charge the interface and charge the connection of the circuit between the module, and then realize that electronic equipment can still can charge when the protection module that charges breaks down, break away from among the relevant technical scheme because protector short circuit damages, electronic equipment just can't charge, cause electronic equipment because the emergence of the unable this condition of use of lack of electricity.

Drawings

Fig. 1 is a schematic circuit diagram showing a charging port of an electronic device in a related art scheme;

FIG. 2 shows a circuit schematic of an electronic device according to an embodiment of the application;

fig. 3 shows a schematic connection diagram of a switch module in an embodiment of the present application;

fig. 4 shows a layout diagram of components of an electronic device in an embodiment of the present application.

The correspondence between reference numerals and component names in fig. 2 to 4 is:

102 module of charging, 104 the interface that charges, 106 protection module that charges, 108 switch module, 1082 deformation portion, 1084 first stiff end, 1086 shell fragment, 1088 second stiff end, 110 detection module, R1 first resistance, R2 second resistance, C electric capacity, 112 excessive pressure detection module.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Fig. 1 shows a schematic circuit diagram of a charging port of an electronic device in a related art, and as shown in fig. 1, the charging port of the electronic device is connected to a charging IC (integrated circuit) through an overvoltage detection device to charge the electronic device.

In the related technical scheme, a protection device is arranged in the electronic equipment, specifically, one end of the protection device is connected with a line between the charging port and the overvoltage detection device, and the other end of the protection device is grounded, wherein the protection device can absorb surge signals on the line between the charging port and the overvoltage detection device, and damage to the overvoltage detection device and the charging IC is reduced.

In an embodiment of the present application, as shown in fig. 2 and 3, an electronic device is proposed, wherein the electronic device comprises: a charging module 102; the charging interface 104 is connected with the charging module 102, and is used for outputting a power supply signal to the charging module 102 so as to charge the charging module 102; a deformation portion 1082; the first fixed end 1084, the first fixed end 1084 is connected to the first end of the charging protection module 106; the second end of the charging protection module 106 is grounded, the elastic piece 1086 is positioned between the deformation part 1082 and the first fixed end 1084, and the elastic piece 1086 is connected with the line between the charging interface 104 and the charging module 102; when the charging protection module 106 is in a short-circuit state, the deformation portion 1082 deforms, so that the elastic piece 1086 is separated from the first fixed end 1084.

In the embodiment of the present application, by providing a switch module 108 between the line between the charging interface 104 and the charging module 102 and the charging protection module 106, that is, the structure composed of the deformation portion 1082, the first fixing end 1084 and the elastic piece 1086, the switch module 108 composed of the deformation portion 1082, the first fixing end 1084 and the elastic piece 1086 is used to control the connection state of the circuit between the charging protection module 106 and the charging interface 104 and the charging module 102, so as to disconnect the charging protection module 106 from the line between the charging interface 104 and the charging module 102 when the charging protection module 106 is short-circuited, therefore, the electronic equipment can still be charged when the charging protection module 106 fails, and the situation that the electronic equipment cannot be used due to power shortage because the electronic equipment cannot be charged due to short-circuit damage of the protection device in the related technical scheme is avoided.

Specifically, the charging interface 104 can be connected to an interface of a charger, and the charger can transmit electric energy to the charging interface 104. Since the charging interface 104 is connected to the charging module 102, the electric energy passing through the charging interface 104 can be transmitted to the charging module 102, so that the charging module 102 can charge.

Specifically, when the charging protection module 106 is in the short-circuit state, the deformation portion 1082 is deformed, and therefore, the connection relationship between the line between the charging interface 104 and the charging module 102 and the charging protection module 106 can be realized by utilizing the deformation of the charging protection module 106, so that when the charging protection module 106 is short-circuited, the connection between the charging protection module 106 and the line between the charging interface 104 and the charging module 102 is cut off through the deformation portion 1082, and the charging module 102 can charge the electronic device.

In addition, when the charging protection module 106 is in a short circuit, heat is continuously generated, for example, the temperature is increased to more than 100 ℃, the charging protection module 106 can be isolated by the deformation portion 1082, so that the influence of continuous heating on the use safety of the electronic device is reduced, and the use safety of the electronic device is ensured in the process.

Specifically, when the charging protection module 106 changes from the normal state to the short-circuit state, the running current of the charging protection module 106 changes, and the change of the running current causes the change of the environmental parameters of the environment where the charging protection module 106 is located, such as the change of the magnetic field strength and the change of the temperature, and the shape of the deformation portion 1082 also changes in the change of the environmental parameters, such as the size of the deformation portion becomes larger or smaller, and the position of the elastic piece 1086 is driven to change by the change of the shape of the deformation portion 1082, so as to achieve the isolation of the charging protection module 106. For example, the shape of the deformation portion 1082 decreases as the temperature of the environment where the deformation portion 1082 is located increases, and at this time, the elastic piece 1086 is no longer abutted to the first fixed end 1084 due to lack of the supporting function of the deformation portion 1082, thereby achieving the isolation of the charging protection module 106.

In the normal state of the charging protection module 106, that is, the charging protection module 106 can absorb surge power up to several kilowatts, that is, static electricity and surge are discharged through the charging protection module 106, so that the voltage between the two electrodes is clamped at a predetermined value, thereby effectively protecting precise components in an electronic circuit from being damaged by various surge pulses.

In this design, the setting of switch module 108 realizes charging protection module 106 and is in the short-circuit state under, and when electronic equipment's the charging, realizes charging protection module 106's automatic isolation, reduces its risk that generates heat and cause electronic equipment to damage under being in the short-circuit state for a long time.

In any of the above embodiments, as shown in fig. 2 and 3, the electronic device further includes: the second fixed end 1088 is positioned on one side of the elastic sheet 1086 and is opposite to the first fixed end 1084; the electronic device further includes: the detection module 110, the first end of the detection module 110 is connected with the second fixed end 1088, the second end of the detection module 110 is grounded, and the detection module 110 is used for determining that the charging protection module 106 is short-circuited according to the connection of the elastic piece 1086 and the second fixed end 1088.

In this embodiment, considering that the charging protection module 106 is disposed inside the electronic device, the user cannot perceive whether the charging protection module 106 is short-circuited.

In order to solve the above problem, the electronic device defined in the present application is further provided with a second fixing end 1088 and a detecting module 110 connected to the second fixing end 1088. The second fixed end 1088 and the first fixed end 1084 are arranged oppositely, so that when the deformation portion 1082 deforms due to the short circuit of the charging protection module 106, the elastic sheet 1086 can be switched to abut against the second fixed end 1088 from the abutting state with the first fixed end 1084, the position change of the elastic sheet 1086 is reflected through the arranged detection module 110, and then a user can know the fault condition of the charging protection module 106 of the current electronic device, so that when the charging protection module 106 is in the short circuit state, the charging protection module can be timely maintained, and the use safety of the electronic device can be ensured.

In any of the above embodiments, as shown in fig. 2, the detecting module 110 includes: a first resistor R1, wherein a first end of the first resistor R1 is connected to the second fixed end 1088; a first end of the second resistor R2 is connected with a second end of the first resistor R1, and a second end of the second resistor R2 is connected with the ground; when the elastic piece 1086 is connected to the second fixed end 1088, the voltage of the second resistor R2 is greater than or equal to the predetermined voltage value.

In this embodiment, the detecting module 110 includes a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 and the second resistor R2 connected in series is connected to the second fixed end 1088, and the other end is grounded. Because the elastic piece 1086 abuts against the second fixed end 1088, the power supply signal transmitted from the charging interface 104 to the charging module 102 is grounded after passing through the elastic piece 1086, the second fixed end 1088, the first resistor R1 and the second resistor R2. In the design, the power supply source of the first resistor R1 and the second resistor R2 is the charging interface 104, so that the short circuit condition of the charging protection module 106 can be displayed to the user even when the electronic device cannot be turned on due to power shortage.

In one embodiment, the value of the preset voltage value is greater than or equal to zero.

In this embodiment, considering that voltage interference may occur when the voltage of the second resistor R2 is collected, and the voltage interference may cause fluctuation of the collection result of the voltage on the second resistor R2, thereby causing misjudgment of short circuit of the charging protection module 106, the interference may be filtered by presetting a voltage value, thereby improving the reliability of operation of the electronic device.

For example, when the voltage value that detects at the sampling end is 0 volt, think that shell fragment 1086 does not support against with second stiff end 1088, when the voltage value that detects at the sampling end is greater than 0 volt, think that shell fragment 1086 supports against with second stiff end 1088, and protection module 106 short circuit damages promptly that charges reminds the user to pull out the head that charges and maintains.

In any of the above embodiments, the detecting module 110 includes: a third resistor, a first end of the third resistor being connected to the second fixed end 1088; a first end of the fourth resistor is connected with a second end of the third resistor, and a second end of the fourth resistor is grounded; the first end of the light-emitting component is connected with the first end of the fourth resistor, the second end of the light-emitting component is connected with the second end of the fourth resistor, and the light-emitting component is conducted under the condition that the elastic sheet 1086 is connected with the second fixed end 1088.

In this embodiment, the detecting module 110 includes a third resistor and a fourth resistor, wherein one end of the third resistor and the fourth resistor connected in series is connected to the second fixed end 1088, and the other end is grounded. Because shell fragment 1086 supports with second stiff end 1088 and leans on, consequently, the power supply signal that interface 104 charges to the transmission of charging module 102 can ground connection behind shell fragment 1086, second stiff end 1088, third resistance and the fourth resistance. In this process, can form the pressure drop on the fourth resistance, this application embodiment is through setting up light emitting component, wherein, light emitting component's both ends are connected with the both ends of fourth resistance respectively, lean on when shell fragment 1086 and second stiff end 1088 support, light emitting component can be under the condition that has the power supply, light emitting, consequently, the user can know the short circuit condition of protection module 106 that charges through light emitting component whether, so that the user maintains it, in this design, because the power supply source of third resistance and fourth resistance is interface 104 that charges, consequently, under the unable circumstances of starting up of electronic equipment because of the power shortage, also can show the short circuit condition of protection module 106 that charges to the user.

The position of the third resistor may be the same as the position of the first resistor R1, and the position of the fourth resistor may be the same as the position of the second resistor R2, which is not limited herein.

In any of the above embodiments, the deformation portion 1082 is formed of a thermally deformable material.

The thermally deformable material may be a phase change material, and in one embodiment, the thermally deformable material may be a phase change material, and the phase change material changes a state of a substance and provides latent heat when the temperature of the material is not changed.

In this embodiment, the change of the ambient temperature is embodied as the change of the shape thereof by using the phase change material, so as to realize the autonomous control of the charging protection module 106 by the switch module 108.

In addition, when the short circuit occurs to the component, the component generates a large amount of heat, the temperature of the charging protection module 106 can be detected by using the phase-change material, and the risk of damage to the electronic equipment caused by overhigh temperature is reduced.

In one embodiment, the phase change material is a rubber foam that can be shrunk rapidly at 80 to 100 degrees so that the resilient piece 1086 abuts against the second fixed end 1088.

In any of the above embodiments, the deformation portion 1082 and the spring piece 1086 are an integral structure.

In this embodiment, deformation portion 1082 and shell fragment 1086 formula structure as an organic whole, can reduce deformation portion 1082 and shell fragment 1086's among the electronic equipment assembly degree of difficulty, simultaneously, also be convenient for reduce the shared space of deformation portion 1082 and shell fragment 1086, realize the miniaturization of accessory. In any of the above embodiments, as shown in fig. 2, the detecting module 110 further includes: and a first end of the capacitor C is connected with a first end of the second resistor R2, and a second end of the capacitor C is connected with a second end of the second resistor R2.

In this embodiment, the detection module 110 further includes a capacitor C, and the setting of the capacitor C can filter the transient fluctuation voltage existing in the circuit when the elastic sheet 1086 is abutted to the second fixed end 1088, and through filtering the transient fluctuation voltage, the reliability of the fault signal of the output charging protection module 106 is improved, and meanwhile, the voltage fluctuation when the power is supplied to the charging module 102 is also reduced, and the stability of the operation of the electronic device is ensured.

In any of the above embodiments, as shown in fig. 2, the method further includes: and the overvoltage detection module 112, wherein the overvoltage detection module 112 is located on a line between the charging interface 104 and the charging module 102.

In this embodiment, the electronic device is further provided with an overvoltage detection module 112, wherein the overvoltage detection module 112 is located on a line between the charging interface 104 and the charging module 102, and when detecting that the input voltage value is greater than the preset voltage value, the overvoltage detection module 112 clamps the input voltage signal, so that the voltage value of the output power supply signal is less than or equal to the preset voltage value, so as to ensure that the charging module 102 is not damaged due to the input voltage being too large. In this design, the reliability of the operation of the electronic device is ensured.

In any of the above embodiments, the charge protection module 106 includes a transient suppression diode.

Among them, a Transient Voltage Super (TVS) is a high-performance protection device in the form of a diode. When two poles of the TVS diode are impacted by reverse transient high energy, the TVS diode can change the high impedance between the two poles into low impedance at the speed of 10 to the order of minus 12 seconds, absorb surge power of thousands of watts and clamp the voltage between the two poles at a preset value, thereby effectively protecting precise components in an electronic circuit from being damaged by various surge pulses.

In the embodiment, the transient suppression diode is arranged, so that the stability of the electronic equipment during charging is reduced, and the probability of damage of the electronic equipment due to the existence of the surge pulse is reduced.

In any of the above embodiments, as shown in fig. 4, the distance between the charging protection module 106 and the switch module 108 is less than or equal to the first value.

In this embodiment, considering that the switch module 108 senses whether the charging protection module 106 is short-circuited by the deformation portion 1082, if the distance between the switch module 108 and the charging protection module 106 is too long, the response time of the switch module 108 to isolate the charging protection module 106 will be too long,

in order to reduce the above situations, the embodiment of the present application specifically defines that the distance between the charging protection module 106 and the switch module 108 is smaller than or equal to the first value, so that heat generated after the charging protection module 106 is short-circuited is sensed by the switch module 108, thereby improving the safety of the electronic device.

In one embodiment, the value of the first value is related to the tolerable temperature of the charge protection module 106, for example, the higher the tolerable temperature of the charge protection module 106 is, the larger the first value is.

In addition, the first value is related to the temperature sensitivity of the deformation portion 1082, i.e., the larger the deformation amount of the deformation portion 1082 is, the larger the value of the first value is.

Specifically, because the conduction of the temperature needs a certain time, that is, there is a thermal resistance, the temperature near the charging protection module 106 is raised, and when the heat of the short circuit of the charging protection module 106 is continuously higher than 100 ℃, wherein 100 ℃ is only an example, it can be basically ensured that the phase change material in the switch module 108 can be continuously contacted to the temperature higher than 100 ℃, and when the phase change material shrinks to cause the elastic piece 1086 to be separated from the first fixed end 1084, the residual temperature can also further shrink the phase change material, so that the elastic piece 1086 is contacted with the second fixed end 1088.

In any of the above embodiments, the distance between the over-voltage detection module 112 and the switch module 108 is less than or equal to the second value.

In this embodiment, it is considered that the elastic piece 1086 is switched from the state of abutting against the first fixed end 1084 to the state of abutting against the second fixed end 1088, when the heat of the short circuit of the charging protection module 106 is continuously higher than 100 ℃, that is, under the condition of large change of the ambient temperature, if the heat emitted when the charging protection module 106 is short-circuited is small, the deformation amount of the deformation portion 1082 is small, so that the elastic piece 1086 cannot abut against the second fixed end 1088, that is, the elastic piece 1086 is located between the first fixed end 1084 and the second fixed end 1088, and is in a middle suspension state, at this time, the electronic device can be charged by using the charging module 102, but the electronic device cannot remind a user of a fault signal that the charging protection module 106 is damaged by the short circuit, so that the user can maintain the faulty electronic device.

In order to reduce the above situations, the embodiment of the present application fully considers that the overvoltage detection module 112 located downstream is damaged after the charging protection module 106 is short-circuited, and the damage of the overvoltage detection module 112 also generates heat, and based on this consideration, the distance between the overvoltage detection module 112 and the switch module 108 is limited to be less than or equal to the second value, so as to utilize the heat of the part, so as to ensure that a fault signal is output to a user when the charging protection module 106 is short-circuited and damaged, so that the user can maintain the electronic device in time.

At this moment, when the voltage value that detects at the sampling end was 0 volt, think that shell fragment 1086 does not support with second stiff end 1088 and lean on, when the voltage value that detects at the sampling end was greater than 0 volt, think that shell fragment 1086 supports with second stiff end 1088 and support, and protection module 106 short circuit damages promptly charges, reminds the user to pull out the head that charges and maintains.

In one embodiment, the value of the second value is related to the layout position of components in the electronic device, and preferably, the smaller the second value, the better.

In any of the above embodiments, further comprising: the battery module is connected to the charging module 102.

In this embodiment, the battery module is disposed in the electronic device, so that the electronic device can be used without a wired power supply manner, and the probability of short-circuit damage of the charging protection module 106 caused by the fact that the charging interface 104 is always connected with the charger for power supply is reduced.

It should be noted that, in this document, the term "comprises/comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "communicate," "connect," and the like are to be construed broadly, e.g., "communication" may be through a direct connection or through other components. The terms "first," "second," and the like are used for distinguishing between different objects and not for describing a particular order of the objects. In the embodiments, words such as "for example" are used to mean serving as an example, certificate, or illustration. Any embodiment or design described herein as "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "such as" is intended to present relevant concepts in a concrete fashion. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An electronic device, comprising:

a charging module;

the charging interface is connected with the charging module and used for outputting a power supply signal to the charging module so as to charge the charging module;

a deformation section;

the first fixed end is connected with the first end of the charging protection module;

the second end of the charging protection module is grounded;

the elastic sheet is positioned between the deformation part and the first fixed end and is connected with the charging interface and the charging module through a circuit;

when the charging protection module is in a short-circuit state, the deformation part deforms, so that the elastic sheet is separated from the first fixed end.

2. The electronic device of claim 1, further comprising:

the second fixed end is positioned on one side of the elastic sheet and is opposite to the first fixed end;

the electronic device further includes: the first end of the detection module is connected with the second fixed end, the second end of the detection module is grounded, and the detection module determines that the charging protection module is short-circuited according to the connection between the elastic sheet and the second fixed end.

3. The electronic device of claim 2, wherein the detection module comprises:

the first end of the first resistor is connected with the second fixed end;

a first end of the second resistor is connected with a second end of the first resistor, and a second end of the second resistor is grounded;

and under the condition that the elastic sheet is connected with the second fixed end, the voltage of the second resistor is greater than or equal to a preset voltage value.

4. The electronic device of claim 2, wherein the detection module comprises:

a first end of the third resistor is connected with the second fixed end;

a first end of the fourth resistor is connected with a second end of the third resistor, and a second end of the fourth resistor is grounded;

and the first end of the light-emitting component is connected with the first end of the fourth resistor, the second end of the light-emitting component is connected with the second end of the fourth resistor, and the light-emitting component is switched on under the condition that the elastic sheet is connected with the second fixed end.

5. The electronic device according to any one of claims 1 to 4, wherein the deformation portion is formed of a thermally deformable material.

6. The electronic device according to any one of claims 1 to 4, wherein the deformation portion and the spring plate are of an integral structure.

7. The electronic device of claim 3, wherein the detection module further comprises:

and the first end of the capacitor is connected with the first end of the second resistor, and the second end of the capacitor is connected with the second end of the second resistor.

8. The electronic device of any of claims 1-4, further comprising:

and the overvoltage detection module is positioned on a circuit between the charging interface and the charging module.

9. The electronic device of any of claims 1-4, wherein the charge protection module comprises a transient suppression diode.

10. The electronic device of any of claims 1-4, further comprising:

the battery module, the battery module with the module connection that charges.

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