TWI884626B - Electronic device with explosion-proof function and explosion-proof method - Google Patents

Abstract

The present invention provides a device, wherein a spring pin connection port, a first Hall sensing element, a second Hall sensing element, at least one temperature sensor, at least one pressure sensor and a processor are arranged in an explosion-proof housing; a battery holder groove and a battery holder cover of the explosion-proof housing can be airtightly combined through a snap-fit piece; the first Hall sensing element senses a first moving state of a magnetic snap-fit piece on an inner wall of a groove of the battery holder groove to generate a first Hall signal; the second Hall sensing element senses a second moving state of a moving needle of the spring pin connection port to generate a second Hall signal; when the processor determines that the first Hall signal or the second Hall signal changes too much, or the temperature or pressure is too high, the processor runs a safety mode to avoid explosion of the electronic device.

Description

Electronic device with explosion-proof function and explosion-proof method

An explosion-proof electronic device and explosion-proof method, which can prevent the electronic device from igniting a fire source.

With the development of technology, computers and various electronic devices have been deeply integrated into various industries. However, in certain environments, electronic devices used by users need to have explosion-proof functions.

In an industrial environment, the environment where an electronic device user is located may be filled with oil, gas, high-concentration combustion-supporting gas, other volatile flammable gas or dust, which have a high probability of causing fire and explosion risks. In such an environment, any fire source generated by any object may ignite a spark and cause a safety hazard. For example, when an electronic device overheats for any reason, its high temperature may provide enough energy to ignite the external hazardous substances it contacts, forming a chain oxidation effect, that is, triggering an explosion or fire. The reason for electronic devices to overheat is not only because the circuit is overheated due to excessive operating power, but also because when it is impacted, high-speed friction between two metal components may cause overheating. For example, the battery of an electronic device and a metal port to which it is electrically connected may generate heat due to friction when the electronic device is impacted. In addition, when the battery and the metal port to which it is electrically connected move relative to each other, an arc may be generated between the two, which may cause the electronic device to ignite the arc and contact external hazardous substances. Therefore, in the use environment of special industries, an electronic device needs to have a safer design to avoid these potential risks that may ignite fire sources.

In order to avoid ignition of fire sources, the present invention provides an electronic device with explosion-proof function and an explosion-proof method, which can prevent the electronic device from igniting external dangerous substances in hardware and software, thereby meeting the explosion-proof industrial safety requirements.

The electronic device with explosion-proof function of the present invention comprises: an explosion-proof outer shell, comprising: a battery holder groove, having: a groove space for arranging a battery; a groove inner wall; wherein two opposite sides of the groove inner wall are respectively provided with a clamping piece and a magnetic clamping piece; wherein the magnetic clamping piece is movably arranged on the groove inner wall; a groove opening; a battery holder cover, which is detachably arranged on the groove opening and has a first clamping mechanism and a second clamping mechanism; wherein the first clamping mechanism is clamped with the clamping piece of the battery holder groove, and the second clamping mechanism is clamped with the magnetic clamping piece of the battery holder groove; wherein when the battery holder cover is clamped with the groove opening of the battery holder groove, the groove space is airtight; a spring pin connection port (pogo pin connection port) pin), which is disposed on the inner wall of the groove of the battery holder groove and has at least one movable needle; wherein the at least one movable needle has a magnetic part and electrically contacts the plurality of electrode contacts of the battery; a first Hall sensor element, which is disposed in the explosion-proof housing and faces the magnetic clamping part, for sensing a first moving state of the magnetic clamping part to generate a first Hall signal; a second Hall sensor a sensing element disposed in the explosion-proof housing and facing the pogo pin connection port for sensing a second moving state of the at least one moving needle to generate a second Hall signal; at least one temperature sensor disposed in the explosion-proof housing to generate a temperature signal; at least one pressure sensor disposed in the explosion-proof housing to generate a pressure signal; a processor electrically connected to the pogo pin connection port (pogo pin) and the at least one temperature sensor disposed in the explosion-proof housing to generate a pressure signal; pin), the first Hall sensing element, the second Hall sensing element, the temperature sensor and the pressure sensor; wherein, when the processor determines that a first change of the first Hall signal is greater than a first threshold value, or a second change of the second Hall signal is greater than a second threshold value, the processor runs a safety mode; wherein, when the processor determines that the temperature signal is greater than a temperature threshold value, the processor runs the safety mode; wherein, when the processor determines that the pressure signal is greater than a pressure threshold value, the processor runs the safety mode.

The explosion-proof method of the present invention is executed by the processor of the electronic device with explosion-proof function, and the explosion-proof method includes the following steps: receiving a temperature signal generated by at least one temperature sensor, and receiving a pressure signal generated by at least one pressure sensor; judging whether the temperature signal is greater than a temperature threshold, and when the temperature signal is greater than the temperature threshold, running a safety mode; judging whether the pressure signal is greater than a pressure threshold, and when the pressure signal is greater than the pressure threshold, running a safety mode; When a first Hall signal is received from a first Hall sensing element, it is determined whether a first change of the first Hall signal is greater than a first threshold value, and when the first change is greater than the first threshold value, the safety mode is run; when a second Hall signal is received from a second Hall sensing element, it is determined whether a second change of the second Hall signal is greater than a second threshold value, and when the second change is greater than the second threshold value, the safety mode is run.

By snapping the battery holder cover into the groove opening of the battery holder groove, the groove space of the present invention will be airtight. Thus, even if the battery placed in the groove space generates heat or arc due to impact, the heat or arc will not contact the combustible gas or dust outside the battery holder cover because of the airtightness of the groove space, thus ensuring that there is no concern of igniting a fire.

In addition, by providing the first Hall sensor, when the magnetic engaging member on the inner wall of the groove moves, for example, when a user of the present invention moves the magnetic engaging member to open the battery holder cover to replace the battery, the magnetic engaging member will change the magnetic field received by the first Hall sensor. By providing the second Hall sensor, when the pogo pin suddenly compresses the at least one moving needle due to impact, the magnetic member of the at least one moving needle will be moved to change the magnetic field received by the second Hall sensor. When the processor determines that the first change of the first Hall signal generated by the first Hall sensor element detecting a change in magnetic field strength is greater than the first threshold, or the second change of the second Hall signal generated by the second Hall sensor element detecting a change in magnetic field strength is greater than the second threshold, the processor runs the safety mode to make the explosion-proof electronic device run more safely to reduce the possibility of igniting a fire. The safety mode can be, for example, measures such as reducing a system operating frequency or powering off.

Furthermore, by providing the at least one temperature sensor and the at least one pressure sensor, the present invention can also operate the safety mode when the at least one temperature sensor senses that the temperature is too high or when the at least one pressure sensor senses that the pressure is too high, so that the electronic device with explosion-proof function can operate more safely to reduce the possibility of igniting a fire and achieve an explosion-proof effect.

10: Explosion-proof housing

11: Battery holder groove

12: Battery holder cover

13: snap-fit parts

14: Magnetic snap-fit parts

15:Substrate

20: Processor

30: Spring pin connection port

31: Move the needle

32: Fixed seat

33: Spring

34: Switch

40: First Hall sensor element

41: First coil

50: Second Hall sensor element

51: Second coil

60: Temperature sensor

70: Pressure sensor

80: Memory unit

90: Input unit

100: Screen unit

110: Groove space

111: Inner wall of groove

112: Groove opening

120: protrusion

121: Depression

140: Magnetic studs

141: Rotating ring

142: External thread

143: Internal thread

150:Substrate surface

151: Core area

152: Surrounding areas

310: Magnetic parts

C1: First voltage curve

C2: Second voltage curve

S1~S6, S40, S41A~S46A, S41B~S46B, S51~S56: Steps

X: The third axis

Y: First axis

Z: Second axis

Figure 1 is a schematic diagram of an electronic device with explosion-proof function according to the present invention.

Figures 2A and 2B are another schematic diagram of the electronic device with explosion-proof function of the present invention.

Figures 3A and 3B are schematic diagrams of a battery holder groove and a battery holder cover of the explosion-proof electronic device of the present invention.

Figure 4 is a block diagram of the electronic device with explosion-proof function of the present invention.

Figure 5 is a cross-sectional schematic diagram of the electronic device with explosion-proof function of the present invention.

Figure 6 is a schematic diagram of a circuit board of the electronic device with explosion-proof function of the present invention.

Figure 7 is a waveform diagram of an operating voltage value of the explosion-proof electronic device of the present invention.

Figure 8 is a flow chart of an explosion-proof method of the present invention.

Figure 9 is another flow chart of the explosion-proof method of the present invention.

Figure 10 is another flow chart of the explosion-proof method of the present invention.

Please refer to Figures 1, 2A and 2B. The present invention is an explosion-proof electronic device having an explosion-proof housing 10. Figure 1 shows a front side of the explosion-proof electronic device, and Figures 2A and 2B show a back side of the explosion-proof electronic device. The explosion-proof housing 10 has a battery holder groove 11 and a battery holder cover 12 on the back side, and the battery holder groove 11 has a groove space 110, a groove inner wall 111 and a groove opening 112.

The groove space 110 is used to place a battery (not shown) to be used by the explosion-proof electronic device. The inner wall 111 of the groove has two opposite sides, and the two opposite sides are respectively provided with a clamping member 13 and a magnetic clamping member 14. The magnetic clamping member 14 is movably arranged on the inner wall 111 of the groove, and in an embodiment of the present invention, the magnetic clamping member 14 includes a magnetic stud 140 and a rotating ring 141.

Please refer to FIG. 3A and FIG. 3B together. An outer surface of the magnetic stud 140 has an outer thread 142, and a ring of the rotating ring 141 has an inner thread 143. The inner thread 143 and the outer thread 142 match each other, so that the rotating ring 141 can be sleeved outside the magnetic stud 140, and when the rotating ring 141 rotates along a first axis Y, the magnetic stud 140 moves along the first axis Y.

In addition, the battery seat cover 12 is detachably arranged at the groove opening 112, and the battery seat cover 12 has a first clamping mechanism and a second clamping mechanism. When the first clamping mechanism is clamped with the clamping member 13 of the battery seat groove 11, and the second clamping mechanism is clamped with the magnetic clamping member 14 of the battery seat groove 11, the battery seat cover 12 is clamped with the groove opening 112 of the battery seat groove 11, so that the groove space 110 has airtightness.

Specifically, the battery seat cover 12 has two opposite sides, and the two opposite sides respectively form a protrusion 120 and a recessed portion 121, and the protrusion 120 is the first engaging mechanism, and the recessed portion 121 is the second engaging mechanism. The engaging member 13 of the groove inner wall 111 is a engaging groove, so the engaging member 13 can be engaged with the protrusion 120 of the battery seat cover 12. The magnetic stud 140 of the magnetic engaging member 14 of the groove inner wall 111 is arranged corresponding to the recessed portion 121 of the battery holder cover 12, so the magnetic stud 140 can move into the recessed portion 121 along the first axial direction Y, and fix the battery holder cover 12 on the battery holder groove 11 by cooperating with the engaging member 13 of the groove inner wall 111 and the protruding portion 120 of the battery holder cover 12. Moreover, when the magnetic stud 140 moves into the recessed portion 121 along the first axial direction Y, the battery holder cover 12 is airtightly combined with the battery holder groove 11, so that the groove space 110 has airtightness. Preferably, a rubber body may be provided at the joint periphery of the battery holder groove 11 and the battery holder cover 12 so that the battery holder cover 12 can be more appropriately airtightly joined with the battery holder groove 11 by squeezing the rubber body.

The battery holder cover 12 is airtightly engaged with the groove opening 112 of the battery holder groove 11. Even if the battery placed in the groove space 110 generates heat or arc due to impact, the heat or arc will not contact the combustible gas or dust outside the battery holder cover 12 because the groove space 110 is airtight. Therefore, it can be ensured that when the explosion-proof electronic device is powered on, that is, when the battery carried in the groove space 110 is airtight, there is no concern of igniting a fire.

Please refer to FIG. 4 and FIG. 5 together. In this embodiment, the present invention further includes a processor 20, a pogo pin port 30, a first Hall sensor 40, a second Hall sensor 50, a plurality of temperature sensors 60, a plurality of pressure sensors 70, a memory unit 80, an input unit 90 and a screen unit 100. The processor 20 is electrically connected to the pogo pin port 30, the first Hall sensor 40, the second Hall sensor 50, the temperature sensors 60, the pressure sensors 70, the memory unit 80, the input unit 90 and the screen unit 100.

The spring pin connection port 30 is disposed on the inner wall 111 of the battery holder groove 11, and the spring pin connection port 30 has a plurality of spring pins, and each of the spring pins has a moving pin 31, a fixing seat 32 and a spring 33, and each of the moving pins 31 has a magnetic member 310. The moving pin 31, the fixing seat 32 and the spring 33 are electrically connected to each other, and the fixing seat 32 is electrically connected to the processor 20. In this embodiment, the battery used in the explosion-proof electronic device has a plurality of electrode contacts, and the moving pins 31 of the spring pin connection port 30 are electrically in contact with the electrode contacts of the battery. Each of the moving needles 31 has magnetism due to the presence of the magnetic member 310. For example, the magnetic member 310 of each of the moving needles 31 is a magnetic coating layer coated on each of the moving needles 31.

The spring 33 is disposed in the fixed seat 32, and the spring 33 is disposed between the fixed seat 32 and the moving needle 31 along a second axis Z. In other words, when the spring 33 is compressed or stretched, the moving needle 31 moves along the second axis Z. Furthermore, when the moving needle 31 is squeezed by an external force and moves toward the fixed seat 32, the spring 33 is compressed, and the degree of compression of the spring 33 can be defined by the distance between the moving needle 31 and the fixed seat 32.

For example, when the spring 33 is only slightly compressed, the distance between the moving needle 31 and the fixing seat 32 is a first distance. When the spring 33 is moderately compressed, the distance between the moving needle 31 and the fixing seat 32 is a second distance. When the spring 33 is greatly compressed, the distance between the moving needle 31 and the fixing seat 32 is a third distance. The first distance is greater than the second distance, and the second distance is greater than the third distance. The change in the distance between the moving needle 31 and the fixing seat 32 corresponds to the change in the length of the circuit for the moving needle 31 to transmit the electrical signal to the processor 20 through the fixing seat 32. Therefore, when the distance between the moving needle 31 and the fixing seat 32 is the first distance, the signal transmission time required for the processor 20 to receive the electrical signal from the moving needle 31 is longer. Similarly, when the distance between the moving needle 31 and the fixing seat 32 is the third distance, the signal transmission time required for the processor 20 to receive the electrical signal from the moving needle 31 is shorter. This difference in signal transmission time will be further discussed in the latter part of the specification.

The first Hall sensor 40 is disposed in the explosion-proof housing 10, and faces the magnetic engaging member 14, so as to sense a first movement state of the magnetic stud 140 of the magnetic engaging member 14 moving along the first axis Y to generate a first Hall signal to the processor 20. Specifically, the first Hall sensor 40 has a first coil 41, and the first coil 41 is disposed in the explosion-proof housing 10 along the first axis Y. When the magnetic stud 140 of the magnetic engaging member 14 moves, for example, when a user of the present invention moves the magnetic stud 140 of the magnetic engaging member 14 to open the battery holder cover 12 to replace the battery, the magnetic stud 140 will change the magnetic field received by the first coil 41 of the first Hall sensor 40, that is, change the number of magnetic lines of force of the magnetic stud 140 passing through the first coil 41, and thus the first Hall sensor 40 generates a first change in the first Hall signal corresponding to the change in magnetic field strength.

The second Hall sensor 50 is also disposed in the explosion-proof housing 10, and faces the spring pin connection port 30, so as to sense a second moving state of at least one of the moving pins 31 and generate a second Hall signal. Specifically, the second Hall sensor 50 has a second coil 51, and the second coil 51 is disposed in the explosion-proof housing 10 along the second axis Z. When the moving needle 31 of at least one of the spring pin connection ports 30 moves suddenly due to impact, thereby causing the spring 33 to be compressed and move the magnetic member 310 on the moving needle 31, the moving magnetic member 310 will change the magnetic field received by the second coil 51 of the second Hall sensor 50, that is, change the number of magnetic lines of force of the magnetic member 310 passing through the second coil 51, and thus the second Hall sensor 50 generates a second change in the second Hall signal corresponding to the change in magnetic field strength.

In another embodiment, the second Hall sensor 50 may also include a plurality of second coils 51, and each second coil 51 is only provided corresponding to one of the moving needles 31 of the spring pin connection port 30. Similarly, as long as any one of the moving needles 31 of the spring pin connection port 30 moves, the second Hall sensor 50 can sense the change in magnetic field intensity through one of the second coils 51 and generate the second Hall signal accordingly.

In addition, the temperature sensors 60 and the pressure sensors 70 are both disposed in the explosion-proof housing 10 and are distributed at different locations in the explosion-proof housing 10. Each temperature sensor 60 senses temperature to generate a temperature signal, and sends the temperature signal to the processor 20. Each pressure sensor 70 senses pressure to generate a pressure signal, and sends the pressure signal to the processor 20.

The memory unit 80 stores a first threshold value, a second threshold value, a duration threshold value, a difference change threshold value, a change duration threshold value, a temperature threshold value, a pressure threshold value, and other threshold value data.

When the processor 20 receives the first Hall signal from the first Hall sensor 40, the processor 20 determines whether the first variation of the first Hall signal is greater than the first threshold according to the first threshold stored in the memory unit 80. When the processor 20 receives the second Hall signal from the second Hall sensor 50, the processor 20 determines whether the second variation of the second Hall signal is greater than the second threshold according to the second threshold stored in the memory unit 80. When the processor 20 receives the temperature signal from each of the temperature sensors 60, the processor 20 determines whether the temperature signal is greater than the temperature threshold according to the temperature threshold stored in the memory unit 80. When the processor 20 receives the pressure signal from each pressure sensor 70, the processor 20 determines whether the pressure signal is greater than the pressure threshold value according to the pressure threshold value stored in the memory unit 80.

When the processor 20 determines that the first variation of the first Hall signal is greater than the first threshold, or the second variation of the second Hall signal is greater than the second threshold, the processor 20 runs a safety mode. Furthermore, when the processor 20 determines that the temperature signal is greater than the temperature threshold, or the pressure signal is greater than the pressure threshold, the processor 20 also runs the safety mode.

When the first variation of the first Hall signal is greater than the first threshold, it means that the battery of the explosion-proof electronic device will lose the aforementioned airtightness due to the movement of the battery holder cover 12. When the second variation of the second Hall signal is greater than the second threshold, it means that the explosion-proof electronic device may be impacted from the second axis Z, which may cause frictional heating or arcing of the battery. When the temperature signal is greater than the temperature threshold, it means that a certain place in the explosion-proof housing 10 is overheated. When the pressure signal is greater than the pressure threshold, it also means that the explosion-proof electronic device may be impacted and subjected to excessive pressure. In these states, because the risk of explosion is relatively high, it is necessary to operate in the safety mode. The explosion-proof electronic device running in the safety mode can reduce the possibility of igniting a fire. For example, when the processor 20 runs in the safety mode, the processor 20 reduces the operating frequency of a system to reduce the operating power of the explosion-proof electronic device, that is, to reduce the risk of the explosion of the explosion-proof electronic device.

In another embodiment, a switch 34 can be electrically connected between the processor 20 and the spring pin connection port 30. When the processor 20 runs the safety mode, the processor 20 controls the switch 34 to stop conducting, so that an open circuit is formed between the processor 20 and the spring pin connection port 30, that is, the power is cut off to protect the explosion-proof electronic device from causing an explosion.

Preferably, in one embodiment, the memory unit 80 may further store a low risk threshold, a medium risk threshold, and a high risk threshold corresponding to the second variation of the second Hall signal. The second threshold is the medium risk threshold, and the low risk threshold is a warning threshold. Furthermore, the low risk threshold is less than the medium risk threshold, and the high risk threshold is greater than the medium risk threshold.

The processor 20 determines whether the second variation of the second Hall signal is greater than the low risk threshold, the medium risk threshold and the high risk threshold respectively.

When the second variation of the second Hall signal is less than or equal to the low risk threshold, the processor 20 determines that each of the moving needles 31 of the spring pin connection port 30 is only slightly compressed, and the distance between each of the moving needles 31 and the fixing seat 32 is still greater than the first distance, and there is no need to be alert to the risk of explosion.

When the second variation of the second Hall signal is greater than the low risk threshold but less than or equal to the medium risk threshold, the processor 20 determines that the distance between at least one of the moving needles 31 and the fixed seat 32 is between the first distance and the second distance, and there is a risk of explosion that needs to be warned, but the condition for adjusting the operating mode has not been met.

When the second variation of the second Hall signal is greater than the medium risk threshold but less than or equal to the high risk threshold, the processor 20 determines that the distance between at least one of the moving needles 31 and the fixed seat 32 is between the second distance and the third distance, and it is necessary to adjust and reduce the system operating frequency to reduce the risk of explosion.

When the second variation of the second Hall signal is greater than the high risk threshold, the processor 20 determines that the distance between at least one of the moving needles 31 and the fixed seat 32 is less than the third distance, and the switch 34 must be controlled to stop conducting, that is, to cut off the power to minimize the risk of explosion.

In addition, in addition to determining whether the second variation of the second Hall signal is greater than the warning threshold, the processor 20 also determines whether the first variation of the first Hall signal is greater than the warning threshold. When the processor 20 determines that the first variation of the first Hall signal or the second variation of the second Hall signal is greater than the warning threshold, the processor 20 starts counting a signal duration. When the processor 20 determines that both the first Hall signal and the second Hall signal are less than the warning threshold, the processor stops counting the signal duration.

When timing the duration of the signal, the processor 20 determines whether the duration of the signal is greater than or equal to the duration threshold stored in the memory unit 80, and when the processor 20 determines that the duration of the signal is greater than or equal to the duration threshold, the processor 20 runs the safety mode.

Please refer to Figures 1, 2, and 6. In this embodiment, the explosion-proof housing 10 of the explosion-proof electronic device is in the shape of a rectangular parallelepiped and has a total of 6 surfaces. Moreover, the front and back surfaces are two surfaces facing the second axis Z among the 6 surfaces, and the front surface is provided with the input unit 90 and the screen unit 100 for the user to operate. The first axis Y perpendicular to the second axis Z also corresponds to two opposite surfaces among the 6 surfaces, and a third axis X perpendicular to the first axis Y and the second axis Z also corresponds to two opposite surfaces among the 6 surfaces. Furthermore, the six pressure sensors 70 are respectively disposed under each of the six surfaces of the explosion-proof housing 10, so that each of the pressure sensors 70 can detect the pressure impact on one of the surfaces of the explosion-proof housing 10.

The explosion-proof housing 10 is provided with a substrate 15, and a substrate surface 150 of the substrate 15 is divided into a core area 151 and a peripheral area 152 surrounding the core area 151. The processor 20 is disposed in the core area 151 of the substrate surface 150, and the temperature sensors 60 are respectively disposed at the junction of the core area 151 and the peripheral area 152 and in the peripheral area 152. The temperature sensors 60 widely distributed on the substrate surface 150 can widely measure the temperature of the core area 151 and the peripheral area 152 of the substrate 15 to ensure that the substrate 15 as a whole is not overheated.

Please refer to FIG. 7 , the processor 20 also measures and records an operating voltage value of the processor 20 according to a preset cycle stored in the memory unit 80. In this way, the processor 20 can regularly determine whether the operating voltage value is stable. When the processor 20 determines that the operating voltage value is unstable, the processor 20 runs the safe mode.

Specifically, when the processor 20 determines whether the operating voltage value is stable, the processor 20 calculates a difference between two adjacent recorded operating voltage values, and determines whether the difference is greater than the difference change threshold stored in the memory unit 80. When the processor 20 determines that the difference is greater than the difference change threshold, the processor 20 starts counting a change duration, and when the processor 20 determines that the difference is less than or equal to the difference change threshold, the processor 20 stops counting the change duration.

For example, the processor 20 records the operating voltage values recorded two times adjacently as a first voltage curve C1 and a second voltage curve C2 in the memory unit 80. The first voltage curve C1 presents the waveform of the operating voltage value when the explosion-proof electronic device operates normally, and it can be seen that this waveform has a fixed periodicity. The second voltage curve C2 presents the waveform of the operating voltage value when the explosion-proof electronic device is impacted, and it can be seen that when impacted, the periodicity of the waveform of the operating voltage value is changed, and this change in the periodicity of the waveform corresponds to the change in the distance between the moving needle 31 and the fixing seat 32 mentioned above. In other words, when the waveform of the operating voltage value changes periodically for a period of time, for example, when the period of the waveform continues to shorten, it means that the distance between the moving needle 31 and the fixing seat 32 also continues to change, that is, the spring 33 continues to be compressed. In this case, it means that the risk of the spring needle connection port 30 igniting and exploding continues to increase, because the friction between the electrode contacts of the battery and the moving needles 31 is continuing to generate heat.

In order to avoid the risk of ignition and explosion from increasing continuously, the processor 20 determines whether the change duration is greater than or equal to the change duration threshold stored in the memory unit 80. When the processor 20 determines that the change duration is greater than or equal to the change duration threshold, the processor 20 determines that the operating voltage value is unstable, and accordingly takes measures to operate the safety mode.

Please refer to FIG. 8 , which summarizes the aforementioned technical contents. The explosion-proof method provided by the present invention is executed by the aforementioned processor 20, and the method includes the following steps:

Step S1: Receive a temperature signal generated by at least one temperature sensor, and receive a pressure signal generated by at least one pressure sensor.

Step S2: Determine whether the temperature signal is greater than a temperature threshold. When the temperature signal is greater than the temperature threshold, run a safety mode, and when the temperature signal is less than or equal to the temperature threshold, execute the next step.

Step S3: Determine whether the pressure signal is greater than a pressure threshold. When the pressure signal is greater than the pressure threshold, execute the safety mode. When the pressure signal is less than or equal to the temperature threshold, execute the next step.

Step S4: Determine whether to operate the safety mode based on the signal received by the Hall sensor element.

Step S5: Measure and record an operating voltage value according to a preset cycle, and determine whether the operating voltage value is stable. When the operating voltage value is determined to be unstable, the safety mode is executed. Otherwise, there is no need to execute the safety mode.

In various embodiments of the present invention, the execution order of steps S2 to S5 can be combined arbitrarily.

Please refer to Figure 9. In one embodiment, step S4 further includes the following sub-steps:

Step S40: Determine whether the first Hall signal is received from the first Hall sensor element or the second Hall signal is received from the second Hall sensor element.

Step S41A: When the first Hall signal is received from the first Hall sensing element, it is determined whether a first change of the first Hall signal is greater than a first threshold value, and when it is determined that the first change is greater than the first threshold value, step S45A is executed.

Step S42A: When it is determined that the first variation is less than or equal to the first threshold, it is determined whether the first variation of the first Hall signal is greater than a warning threshold. When it is determined that the first variation is less than or equal to the warning threshold, step S5 is executed.

Step S43A: When the first variation is greater than the warning threshold, a signal duration is measured.

Step S44A: Determine whether the duration of the signal is greater than or equal to a duration threshold. When the duration of the signal is greater than or equal to the duration threshold, execute step S45A, and when the duration of the signal is less than the duration threshold, execute step S42A.

Step S45A: Run the safe mode.

Step S41B: When receiving the second Hall signal from the second Hall sensing element, determine whether a second variation of the second Hall signal is greater than a second threshold value, and when it is determined that the second variation is greater than the second threshold value, execute step S45B.

Step S42B: When it is determined that the second variation is less than or equal to the second threshold, it is determined whether the second variation of the second Hall signal is greater than the warning threshold. When it is determined that the second variation is less than or equal to the warning threshold, step S5 is executed.

Step S43B: When the second variation is greater than the warning threshold, the duration of the signal is measured.

Step S44B: Determine whether the duration of the signal is greater than or equal to the duration threshold. When the duration of the signal is greater than or equal to the duration threshold, execute step S45B, and when the duration of the signal is less than the duration threshold, execute step S42B.

Step S45B: Run the safe mode.

Please refer to Figure 10, step S5 includes the following sub-steps:

Step S51: Calculate a difference between the operating voltage values recorded two adjacent times.

Step S52: Determine whether the difference is greater than a difference change threshold.

Step S53: When the difference is greater than the difference change threshold, a change duration is counted.

Step S54: Determine whether the change duration is greater than or equal to a change duration threshold.

Step S55: When the change duration is greater than or equal to the change duration threshold, it is determined that the operating voltage value is unstable and the safety mode is operated.

Step S56: When the change duration is less than the change duration threshold, it is determined that the operating voltage value is stable and there is no need to run the safety mode.

In summary, the present invention uses a first Hall sensor element disposed in the first axis and a second Hall sensor element disposed in the second axis to detect the position change of the magnetic stud and the spring pin connection port to determine whether the battery of the electronic device is in a normal working environment. (1) When the battery of the electronic device needs to be replaced, or (2) when the internal temperature of the electronic device is abnormal, or (3) when the external environment of the electronic device is in an unstable state that may explode, the electronic device can use the Hall sensor element, the temperature sensor element, or the pressure sensor element to change the system operation of the electronic device to the safety mode, such as reducing the system operation frequency or cutting off the power, to avoid the electronic device from exploding.

10: Explosion-proof housing

11: Battery holder groove

12: Battery holder cover

14: Magnetic snap-fit parts

30: Spring pin connection port

110: Groove space

111: Inner wall of groove

112: Groove opening

120: protrusion

140: Magnetic stud

141: Rotating ring

X: The third axis

Y: First axis

Z: Second axis

Claims (10)

An electronic device with explosion-proof function, comprising:  An explosion-proof outer shell, comprising: A battery holder groove, having: A groove space for arranging a battery; A groove inner wall; wherein, two opposite sides of the groove inner wall are respectively provided with a clamping piece and a magnetic clamping piece; wherein, the magnetic clamping piece is movably arranged on the groove inner wall; A groove opening; A battery holder cover, detachably arranged on the groove opening, and having a first clamping mechanism and a second clamping mechanism; wherein, the first clamping mechanism is clamped with the clamping piece of the battery holder groove, and the second clamping mechanism is clamped with the magnetic clamping piece of the battery holder groove; wherein, when the battery holder cover is clamped with the groove opening of the battery holder groove, the groove space is airtight; A spring pin connection port (pogo pin connection port); pin), disposed on the inner wall of the battery holder groove, and having at least one moving needle; wherein the at least one moving needle has a magnetic part respectively, and electrically contacts the plurality of electrode contacts of the battery; A first Hall sensing element, disposed in the explosion-proof housing and facing the magnetic engaging part, for sensing a first moving state of the magnetic engaging part to generate a first Hall signal; A second Hall sensing element, disposed in the explosion-proof housing and facing the spring pin connection port, for sensing a second moving state of the at least one moving needle to generate a second Hall signal; At least one temperature sensor, disposed in the explosion-proof housing, for generating a temperature signal; At least one pressure sensor, disposed in the explosion-proof housing, for generating a pressure signal; A processor is electrically connected to the spring pin connection port, the first Hall sensor, the second Hall sensor, the temperature sensor and the pressure sensor respectively; Wherein, when the processor determines that a first change of the first Hall signal is greater than a first threshold value, or a second change of the second Hall signal is greater than a second threshold value, the processor runs a safety mode; Wherein, when the processor determines that the temperature signal is greater than a temperature threshold value, the processor runs the safety mode; Wherein, when the processor determines that the pressure signal is greater than a pressure threshold value, the processor runs the safety mode. An electronic device with explosion-proof function as described in claim 1, wherein the at least one pressure sensor is a plurality of pressure sensors; wherein the explosion-proof housing has a plurality of surfaces, and one of the pressure sensors is disposed under each of the surfaces of the explosion-proof housing. The electronic device with explosion-proof function as described in claim 1 further comprises: A substrate disposed in the explosion-proof housing; wherein a substrate surface of the substrate is divided into a core area and a peripheral area surrounding the core area; wherein the processor is disposed in the core area on the substrate surface; wherein the at least one temperature sensor is a plurality of temperature sensors, and the temperature sensors are respectively disposed at the junction of the core area and the peripheral area and in the peripheral area. An electronic device with explosion-proof function as described in claim 1, wherein the processor regularly measures and records an operating voltage value at a preset period, and regularly determines whether the operating voltage value is stable; when the operating voltage value is determined to be unstable, the processor runs the safety mode; Wherein, when the processor regularly determines whether the operating voltage value is stable, the processor calculates a difference between two adjacent recorded operating voltage values, and determines whether the difference is greater than a difference change threshold; When the difference is greater than the difference change threshold, the processor starts counting a change duration, and when the processor determines that the difference is less than or equal to the difference change threshold, the processor stops counting the change duration; When the processor determines that the change duration is greater than or equal to a change duration threshold, the processor determines that the operating voltage value is unstable. An explosion-proof electronic device as described in claim 1, wherein a protrusion and a recess are formed on opposite sides of the battery seat cover, the protrusion is the first engaging mechanism, and the recess is the second engaging mechanism; wherein the engaging member on the inner wall of the groove is a engaging groove for the protrusion of the battery seat cover to be engaged; wherein the magnetic engaging member on the inner wall of the groove includes: a magnetic stud having an outer thread on one outer surface thereof and arranged corresponding to the recess; a rotating ring having an inner thread inside the ring and sleeved on the outside of the magnetic stud; wherein the rotating ring rotates along a first axial direction, and when the rotating ring rotates, the magnetic stud moves along the first axial direction; Wherein, when the magnetic stud moves into the recessed portion along the first axial direction, the battery holder cover is airtightly combined with the battery holder groove; Wherein, the first Hall sensor element has a first coil, and the first coil is wound along the first axial direction. An explosion-proof electronic device as described in claim 1, wherein the magnetic member of the at least one moving needle of the spring needle connection port is a magnetic coating coated on the at least one moving needle; wherein the at least one moving needle moves along a second axial direction; wherein the second Hall sensor element has a second coil, and the second coil is wound along the second axial direction. A method for explosion-proofing is performed by a processor of an electronic device with explosion-proofing function as described in any one of claims 1 to 6, wherein the method comprises the following steps: Receiving a temperature signal generated by at least one temperature sensor, and receiving a pressure signal generated by at least one pressure sensor; Determining whether the temperature signal is greater than a temperature threshold, and when the temperature signal is greater than the temperature threshold, running a safety mode; Determining whether the pressure signal is greater than a pressure threshold, and when the pressure signal is greater than the pressure threshold, running the safety mode; When a first Hall signal is received from a first Hall sensing element, it is determined whether a first change of the first Hall signal is greater than a first threshold value, and when the first change is greater than the first threshold value, the safety mode is run; When a second Hall signal is received from a second Hall sensing element, it is determined whether a second change of the second Hall signal is greater than a second threshold value, and when the second change is greater than the second threshold value, the safety mode is run. The explosion-proof method as described in claim 7, further comprising the following steps: Determine whether the first variation of the first Hall signal or the second variation of the second Hall signal is greater than a warning threshold; When the first variation or the second variation is greater than the warning threshold, start counting a signal duration; Determine whether the signal duration is greater than or equal to a duration threshold; When the signal duration is greater than or equal to the duration threshold, run the safety mode. The explosion-proof method as described in claim 7 further includes the following steps: Measuring and recording an operating voltage value regularly according to a preset cycle, and determining whether the operating voltage value is stable regularly; When the operating voltage value is determined to be unstable, operating the safety mode. The explosion-proof method as described in claim 9, wherein the timing judgment of whether the operating voltage value is stable includes the following sub-steps: Calculate a difference between the operating voltage values recorded at two adjacent times; Judge whether the difference is greater than a difference change threshold; When the difference is greater than the difference change threshold, start counting a change duration; Judge whether the change duration is greater than or equal to a change duration threshold; When the change duration is greater than or equal to the change duration threshold, it is judged that the operating voltage value is unstable.