Thermal glass bulb, thermal alarm circuit and electronic device

Abstract

The present invention relates to a temperature-sensitive alarm circuit. The circuit includes a temperature-sensitive glass bulb, an SOC circuit, and an alarm. The first end of the temperature-sensitive glass bulb is connected to the power supply voltage through an input resistor, and the second end is connected to the ground terminal. The SOC circuit is connected to the first end of the temperature-sensitive glass bulb and is used to detect the voltage value at the first end of the temperature-sensitive glass bulb. When the ambient temperature does not reach the bursting temperature of the temperature-sensitive glass bulb, the temperature-sensitive glass bulb will not burst, the circuit between the power supply voltage and the temperature-sensitive glass bulb is turned on, and the voltage at the first end is at a low level. When the ambient temperature reaches the bursting temperature of the temperature-sensitive glass bulb, the temperature-sensitive glass bulb bursts, the circuit between the power supply voltage and the temperature-sensitive glass bulb is disconnected, the voltage at the first end is at a high level, and when the SOC circuit detects that the voltage value at the first end is at a high level, it controls the alarm to give an alarm. The present invention also relates to a temperature-sensitive glass bulb and an electronic device. The present invention can timely remind users in case of a fire and avoid fire casualties of users.

Description

Technical Field

[0001] The present invention relates to the field of electronic circuits, and particularly to a temperature-sensitive glass bulb, a temperature-sensitive alarm circuit and an electronic device. Background Art

[0002] In many cases of fire casualties, many fires occur at night, and people may be directly burned to death while in a sleeping state. At present, many old and new residential buildings do not install automatic fire alarm devices and smoke and temperature fire detectors indoors. When a fire breaks out, people in their sleep miss the best opportunity to escape from the fire scene because there is no effective fire detection and alarm device, resulting in a large number of fire casualties. In today's society, mobile phones have become essential electronic products for everyone. Whether it is day or night, mobile phones are basically never left unattended, and mobile phones have basic functions such as vibration, ringtone, and direct communication with emergency contacts. In addition, current temperature-sensitive glass bulbs are non-conductive, so it is necessary to additionally provide a conductive element on the temperature-sensitive glass bulb to connect the temperature-sensitive glass bulb to the temperature-sensitive alarm circuit. Therefore, it is necessary to provide a mobile phone with a temperature-sensitive alarm function to detect and remind users in time when a fire breaks out. Summary of the Invention

[0003] In view of the above, it is necessary to provide a temperature-sensitive glass bulb, a temperature-sensitive alarm circuit and an electronic device to detect and remind users in time when a fire breaks out, so as to avoid the occurrence of fire casualties.

[0004] In a first aspect of the present application, a temperature-sensitive glass bulb is provided, and the temperature-sensitive glass bulb is conductive.

[0005] Preferably, a conductive substance is coated on the outer surface / inner surface of the temperature-sensitive glass bulb, or a vaporizable conductive liquid is hermetically accommodated inside the temperature-sensitive glass bulb.

[0006] The second aspect of the present application provides a temperature-sensing alarm circuit, including a temperature-sensing glass bulb, a power supply voltage, an input resistor, and a grounding terminal. The temperature-sensing glass bulb includes a first end and a second end. The first end is connected to the power supply voltage through the input resistor, and the second end is connected to the grounding terminal. The temperature-sensing alarm circuit further includes an SOC circuit and an alarm. The SOC circuit is connected to the alarm and is connected to the first end of the temperature-sensing glass bulb, and the SOC circuit is used to detect the voltage value at the first end of the temperature-sensing glass bulb. When the ambient temperature does not reach the bursting temperature of the temperature-sensing glass bulb, the temperature-sensing glass bulb will not burst, the circuit between the power supply voltage and the temperature-sensing glass bulb is connected, and the voltage at the first end is low level; when the ambient temperature reaches the bursting temperature of the temperature-sensing glass bulb, the temperature-sensing glass bulb bursts, the circuit connection between the power supply voltage and the temperature-sensing glass bulb is disconnected, the voltage at the first end is high level, and when the SOC circuit detects that the voltage value at the first end of the temperature-sensing glass bulb is high level, it controls the alarm to give an alarm.

[0007] Preferably, the interior of the temperature-sensing glass bulb is hermetically filled with a vaporizable conductive liquid, and the conductive liquid is electrically connected to the first end and the second end of the temperature-sensing glass bulb.

[0008] Preferably, a glass tube filled with conductive liquid is provided inside the temperature-sensing glass bulb, and the conductive liquid is electrically connected to the first end and the second end of the temperature-sensing glass bulb through the glass tube filled with conductive liquid.

[0009] Preferably, the conductive liquid is electrically connected to the first end and the second end of the temperature-sensing glass bulb through wires respectively.

[0010] Preferably, the interior of the temperature-sensing glass bulb is hermetically filled with a vaporizable liquid, and the outer surface / inner surface of the temperature-sensing glass bulb is coated with a conductive substance. The first end and the second end of the temperature-sensing glass bulb are respectively connected to the outer surface / inner surface of the temperature-sensing glass bulb.

[0011] Preferably, the temperature-sensing alarm circuit further includes a vibration module, and the vibration module is connected to the SOC circuit. When the SOC circuit detects that the voltage value at the first end of the temperature-sensing glass bulb is high level, it controls the vibration module to vibrate.

[0012] The third aspect of the present application provides an electronic device, and the electronic device includes the above-mentioned temperature-sensing alarm circuit.

[0013] Preferably, the electronic device further includes a communication module, which is connected to the SOC circuit of the temperature-sensing alarm circuit. When the SOC circuit detects that the voltage value at the first end of the temperature-sensing glass bulb is high, it checks whether it receives an instruction from the user to turn off the alarm within a preset time. When it does not receive an instruction from the user to turn off the alarm within the preset time, the SOC circuit obtains the location information of the electronic device, controls the communication module to contact a preset emergency contact person, and sends the obtained location information of the electronic device to the contact person.

[0014] In case of a fire in this case, the temperature-sensing glass bulb is used to detect whether the ambient temperature exceeds the bursting temperature of the temperature-sensing glass bulb. When the ambient temperature exceeds the bursting temperature of the temperature-sensing glass bulb, the SOC circuit sends a control instruction to control the alarm to give an alarm, thereby timely reminding the user and avoiding fire casualties to the user. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the temperature-sensing alarm circuit in an embodiment of the present invention.

[0016] Figure 2 It is a functional module diagram of the electronic device in an embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the electronic device in an embodiment of the present invention.

[0018] Description of the Main Element Symbols

[0019] Temperature-sensing alarm circuit 1 Temperature-sensing glass bulb 11 Power supply voltage 12 Input resistance 13 Ground terminal 14 SOC circuit 15 Alarm 16 Vibration module 17 Sealed container 18 First end 111 Second end 112 Conductive liquid 113 Glass tube 114 Electronic device 100 Communication module 2

[0020] The following specific embodiments will further illustrate the present invention in conjunction with the above drawings. Specific Embodiments

[0021] Please refer to Figure 1, which shows a schematic diagram of the temperature - sensing alarm circuit 1 in an embodiment of the present invention. In this embodiment, the temperature - sensing alarm circuit 1 at least includes a temperature - sensing glass bulb 11, a power supply voltage 12, an input resistor 13, a ground terminal 14, a SOC (System On Chip) circuit 15, and an alarm 16. In this embodiment, the temperature - sensing glass bulb 11 includes a first end 111 and a second end 112. The first end 111 of the temperature - sensing glass bulb 11 is connected to the power supply voltage 12 through the input resistor 13. In this embodiment, the input resistor is 100 kΩ and the power supply voltage 12 is 1.8 V. The second end 112 of the temperature - sensing glass bulb 11 is connected to the ground terminal 14. The SOC circuit 15 is connected to the alarm 16. The SOC circuit 15 is connected to the first end 111 of the temperature - sensing glass bulb 11 and the SOC circuit 15 is used to detect the voltage value at the first end 111 of the temperature - sensing glass bulb 11. In this embodiment, when a fire occurs, the ambient temperature will gradually increase. When the ambient temperature does not reach the bursting temperature of the temperature - sensing glass bulb 11, the temperature - sensing glass bulb 11 will not burst, the circuit between the power supply voltage 12 and the temperature - sensing glass bulb 11 is turned on, and the voltage at the first end 111 of the temperature - sensing glass bulb 11 is at a low level. When the ambient temperature reaches the bursting temperature of the temperature - sensing glass bulb 11, the temperature - sensing glass bulb 11 bursts, the circuit connection between the power supply voltage 12 and the temperature - sensing glass bulb 11 is disconnected, the voltage at the first end 111 of the temperature - sensing glass bulb 11 is at a high level, and when the SOC circuit 15 detects that the voltage value at the first end 111 of the temperature - sensing glass bulb 11 is at a high level, it controls the alarm 16 to give an alarm. Therefore, in this case, when a fire occurs, the temperature - sensing glass bulb 11 is used to detect whether the ambient temperature exceeds the bursting temperature of the temperature - sensing glass bulb 11, and when the ambient temperature exceeds the bursting temperature of the temperature - sensing glass bulb 11, the SOC circuit 15 sends a control command to control the alarm 16 to give an alarm, thereby timely reminding the user and avoiding fire - related casualties of the user.

[0022] In this embodiment, the temperature-sensing alarm circuit 1 further includes a sealed container 18. The temperature-sensing glass bulb 11 is housed in the sealed container 18. In this embodiment, a vaporizable conductive liquid 113 is hermetically contained inside the temperature-sensing glass bulb 11. The conductive liquid 113 is electrically connected to the first end 111 and the second end 112 of the temperature-sensing glass bulb 11. In one embodiment, a glass tube 114 filled with conductive liquid is provided inside the temperature-sensing glass bulb 11, and the conductive liquid 113 is electrically connected to the first end 111 and the second end 112 of the temperature-sensing glass bulb 11 respectively through the glass tube 114 filled with conductive liquid. In this embodiment, the conductive liquid 113 is a vaporizable conductive liquid (such as mercury) or a mixture of a vaporizable conductive liquid and a conductive substance. In another embodiment, the conductive liquid 113 is electrically connected to the first end 111 and the second end 112 of the temperature-sensing glass bulb 11 respectively through wires. In this embodiment, different conductive liquids can be distinguished by different colors. For example, the conductive liquids can be divided into orange conductive liquid, red conductive liquid, yellow conductive liquid, and green conductive liquid. Among them, the blasting temperature corresponding to the orange conductive liquid is 57°C, the blasting temperature corresponding to the red conductive liquid is 68°C, the blasting temperature corresponding to the yellow conductive liquid is 79°C, and the blasting temperature corresponding to the green conductive liquid is 93°C. In this embodiment, when the ambient temperature reaches the blasting temperature, the conductive liquid 113 expands and blasts the temperature-sensing glass bulb 11, so that the circuit between the power supply voltage 12 and the temperature-sensing glass bulb 11 is disconnected.

[0023] In one embodiment, a vaporizable liquid is hermetically contained inside the temperature-sensing glass bulb 11, and a conductive substance is coated on the outer surface / inner surface of the temperature-sensing glass bulb 11. The first end 111 and the second end 112 of the temperature-sensing glass bulb 11 are respectively connected to the outer surface / inner surface of the temperature-sensing glass bulb 11. In this way, when the ambient temperature does not reach the blasting temperature of the temperature-sensing glass bulb 11, the circuit between the power supply voltage 12 and the temperature-sensing glass bulb 11 is turned on, or when the ambient temperature reaches the blasting temperature of the temperature-sensing glass bulb 11, the circuit between the power supply voltage 12 and the temperature-sensing glass bulb 11 is disconnected. In this embodiment, the vaporizable liquid at least includes alcohol. In other embodiments, the vaporizable liquid can be an organic solution with a high coefficient of thermal expansion.

[0024] In this embodiment, the alarm 16 is a speaker, and when the SOC circuit 15 detects that the voltage value at the first end 111 of the temperature-sensing glass bulb 11 is at a high level, it controls the speaker to emit a sound for alarm.

[0025] In one embodiment, the temperature-sensing alarm circuit 1 further includes a vibration module 17. The vibration module 17 is connected to the SOC circuit 15. When the SOC circuit 15 detects that the voltage value at the first end 111 of the temperature-sensing glass bulb 11 is at a high level, it controls the vibration module 17 to vibrate, thereby alerting the user. In this embodiment, the vibration module 17 is a vibration motor module.

[0026] Please refer to Figure 2 , which shows a functional module diagram of the electronic device 100 in one embodiment of the present invention. In this embodiment, the electronic device 100 includes the temperature-sensing alarm circuit 1 and a communication module 2. The communication module 2 is connected to the SOC circuit 15 of the temperature-sensing alarm circuit 1. In this embodiment, the electronic device 100 is a mobile phone. Please refer to Figure 3 , which shows a schematic structural diagram of the electronic device 100 in one embodiment of the present invention. The temperature-sensing glass bulb 11 in the temperature-sensing alarm circuit 1 is installed on the rear cover 101 of the electronic device 100. Specifically, the temperature-sensing glass bulb 11 is installed in a sealed container 18, and the sealed container 18 is installed on the rear cover 101 of the electronic device 100 at a position close to the rear camera. When the SOC circuit 15 detects that the voltage value at the first end 111 of the temperature-sensing glass bulb 11 is at a high level, it detects whether an instruction to turn off the alarm 16 or the vibration module 17 is received from the user within a preset time. When no instruction to turn off the alarm 16 or the vibration module 17 is received from the user within the preset time, the SOC circuit 15 obtains the location information of the electronic device 100, controls the communication module 2 to contact a preset emergency contact, and sends the obtained location information of the electronic device 100 to the emergency contact. Thus, when the user fails to notice the fire situation due to being asleep, the user is notified through the preset emergency contact, avoiding the occurrence of casualty accidents caused by the user not being notified in time.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A temperature-sensing alarm circuit, including a power supply voltage, an input resistor, and a ground terminal, is characterized in that, The alarm circuit further includes a heat-sensitive glass bulb, the heat-sensitive glass bulb includes a first end and a second end, the first end is connected to the power supply voltage through the input resistor, the second end is connected to the ground terminal, a conductive substance is coated on the outer surface / inner surface of the heat-sensitive glass bulb, the outer surface / inner surface of the heat-sensitive glass bulb is connected to the first end and the second end, the temperature sensing alarm circuit further includes an SOC circuit and an alarm, the SOC circuit is connected to the alarm, the SOC circuit is connected to the first end of the heat-sensitive glass bulb and the SOC circuit is used to detect the voltage value at the first end of the heat-sensitive glass bulb. When the ambient temperature does not reach the bursting temperature of the heat-sensitive glass bulb, the heat-sensitive glass bulb will not burst, the circuit between the power supply voltage and the heat-sensitive glass bulb is turned on, and the voltage at the first end is low level; when the ambient temperature reaches the bursting temperature of the heat-sensitive glass bulb, the heat-sensitive glass bulb bursts, the circuit connection between the power supply voltage and the heat-sensitive glass bulb is disconnected, the voltage at the first end is high level, and when the SOC circuit detects that the voltage value at the first end of the heat-sensitive glass bulb is high level, it controls the alarm to give an alarm.

2. The temperature-sensing alarm circuit according to claim 1, wherein The interior of the heat-sensitive glass bulb is hermetically filled with a vaporizable conductive liquid, and the conductive liquid is electrically connected to the first end and the second end of the heat-sensitive glass bulb.

3. The temperature-sensing alarm circuit according to claim 2, wherein, A glass tube filled with a conductive liquid is provided inside the heat-sensitive glass bulb, and the conductive liquid is electrically connected to the first end and the second end of the heat-sensitive glass bulb through the glass tube filled with the conductive liquid.

4. The temperature-sensing alarm circuit according to claim 2, wherein The conductive liquid is electrically connected to the first end and the second end of the heat-sensitive glass bulb through wires respectively.

5. The temperature-sensing alarm circuit according to claim 1, wherein The interior of the heat-sensitive glass bulb is hermetically filled with a vaporizable liquid, a conductive substance is coated on the outer surface / inner surface of the heat-sensitive glass bulb, and the first end and the second end of the heat-sensitive glass bulb are respectively connected to the outer surface / inner surface of the heat-sensitive glass bulb.

6. The temperature-sensing alarm circuit according to claim 1, characterized in that The temperature sensing alarm circuit further includes a vibration module, the vibration module is connected to the SOC circuit, and when the SOC circuit detects that the voltage value at the first end of the heat-sensitive glass bulb is high level, it controls the vibration module to vibrate.

7. An electronic device, characterized in that, The electronic device includes the temperature sensing alarm circuit according to any one of claims 1-6.

8. The electronic device according to claim 7, wherein The electronic device further includes a communication module, the communication module is connected to the SOC circuit of the temperature sensing alarm circuit, when the SOC circuit detects that the voltage value at the first end of the heat-sensitive glass bulb is high level, it detects whether a user's instruction to turn off the alarm is received within a preset time, and when the user's instruction to turn off the alarm is not received within the preset time, the SOC circuit obtains the location information of the electronic device, controls the communication module to contact a preset emergency contact person, and sends the obtained location information of the electronic device to the contact person.

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