Fireproof Bluetooth prepayment electricity meter

By incorporating a combination of a gas storage cylinder and heat-sensitive tubing within the electricity meter, and utilizing a temperature sensor to monitor and control the release of carbon dioxide gas from the electric actuator, the fire problem caused by spontaneous combustion due to a short circuit in the electricity meter is solved, thus improving the safety of the electricity meter.

CN223770667UActive Publication Date: 2026-01-06SHANDONG CHENHUI ELECTRONICS TECH
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Patent Information

Application Number
CN202520698814.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-01-06
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing prepaid electricity meters are prone to catching fire in the event of a short circuit, and the fire is difficult to control in a timely manner, posing a safety hazard.

Method used

A gas cylinder, a temperature sensor, and a heat-sensitive pipe are installed inside the meter. The temperature sensor monitors the internal temperature of the meter. When the temperature exceeds the threshold, the electric actuator is controlled to activate the heat-sensitive pipe, releasing carbon dioxide gas from the gas cylinder to extinguish the fire.

Benefits of technology

It enables rapid fire extinguishing in the event of a short circuit and spontaneous combustion of the electricity meter, improving the safety of the meter and preventing the fire from spreading.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fireproof Bluetooth prepayment electricity meter which comprises an electricity meter body, a temperature sensor, a heat sensitive pipe fitting and an exhaust box, a device box is fixedly installed at the top of the electricity meter body, a gas storage bottle is fixedly installed in the device box, one end of the heat sensitive pipe fitting is used for sealing a gas inlet connector, and the other end of the heat sensitive pipe fitting is used for sealing a gas outlet connector. The temperature sensor is fixedly installed in the ammeter body, and the exhaust box is installed at the bottom in the ammeter body. The gas storage bottle used for storing fire extinguishing gas is arranged on the electric meter body, the temperature sensor monitors the internal temperature of the electric meter body in real time, when a control panel or a circuit in the electric meter body is short-circuited and spontaneously ignited, the electric push rod can be controlled to be started, and the electric push rod pushes the heat sensitive pipe fitting; at the moment, carbon dioxide gas in the gas storage bottle can quickly enter the electric meter body, so that oxygen is isolated to extinguish fire, and the use safety is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to a fireproof Bluetooth prepaid electricity meter. Background Technology

[0002] Smart meters are intelligent terminals of smart grids. They are no longer traditional electricity meters. In addition to the basic electricity metering function of traditional electricity meters, smart meters also have intelligent functions such as bidirectional multi-rate metering, user-end control function, bidirectional data communication function with multiple data transmission modes, Bluetooth data transmission function, and anti-theft function, in order to adapt to the use of smart grids and new energy sources. Smart meters represent the development direction of intelligent terminals for end users of future energy-saving smart grids.

[0003] Current prepaid electricity meters have many internal functional components, and their circuits are prone to catching fire when a short circuit occurs. If staff cannot detect it in time, it can lead to serious damage to the meter and also cause the fire to spread, making them unsafe. Summary of the Invention

[0004] The purpose of this utility model is to provide a fireproof Bluetooth prepaid electricity meter that solves the problem of existing electricity meters being unable to extinguish fires, as mentioned in the background art, by setting up a gas storage cylinder.

[0005] According to one aspect of this disclosure, the following technical solution is provided: a fireproof Bluetooth prepaid electricity meter, including a meter body, a control board inside the meter body, a temperature sensor, a heat-sensitive tube, and an exhaust box. A device box is fixedly installed on the top of the meter body, and a gas cylinder is fixedly installed inside the device box. The gas cylinder is used to store gas for fire extinguishing. The gas cylinder's outlet is connected to an inlet connector. The heat-sensitive tube is installed on the top of the meter body, and one end of the heat-sensitive tube is used to seal the inlet connector. The temperature sensor is fixedly installed inside the meter body, and the exhaust box is installed at the bottom of the meter body.

[0006] Preferably, an electric push rod is fixedly installed at the top of the meter body, flush with the position of the heat-sensitive pipe, and the temperature sensor controls the start and stop of the electric push rod via a PLC.

[0007] Preferably, the heat-sensitive fitting includes a heat-sensitive glass tube and a support plate. One end of the bottom of the device box has an air vent that connects to the inside of the meter body. The upper end of the heat-sensitive glass tube is inserted into the air vent. Pull rods are fixedly installed at both ends of the upper surface of the support plate. The upper ends of the pull rods are fixedly connected to the top of the meter body. The lower end of the heat-sensitive glass tube is in contact with the support plate.

[0008] Preferably, a fan is fixedly installed inside the exhaust box, and ventilation holes are provided at the top and bottom of the exhaust box.

[0009] Preferably, a heat dissipation vent is provided at the upper outer side of the meter body.

[0010] Preferably, multiple ventilation slots are evenly formed at the edge of the support plate.

[0011] A fire-resistant Bluetooth prepaid electricity meter according to at least one embodiment of the present disclosure.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention features a gas cylinder for storing fire extinguishing gas installed on the meter body. A temperature sensor monitors the internal temperature of the meter body in real time. When a short circuit occurs in the control board or wiring inside the meter body and causes spontaneous combustion, it can control an electric push rod to activate. The electric push rod will push the heat-sensitive pipe, allowing carbon dioxide gas in the gas cylinder to quickly enter the meter body, thereby isolating oxygen for fire extinguishing and improving safety. Attached Figure Description

[0014] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0015] Figure 1 This is a front view of a fireproof Bluetooth prepaid electricity meter according to this utility model.

[0016] Figure 2 This is a rear view of a fireproof Bluetooth prepaid electricity meter according to this utility model.

[0017] Figure 3 This is a cross-sectional view of a fireproof Bluetooth prepaid electricity meter according to this utility model.

[0018] Figure 4 This is a structural diagram of the heat-sensitive pipe fitting of this utility model.

[0019] The specific labels in the attached figures are as follows:

[0020] 1. Meter body; 11. Vent; 12. Heat dissipation port; 2. Device box; 21. Gas storage bottle; 22. Air inlet connector; 3. Control board; 4. Temperature sensor; 5. Heat-sensitive pipe fitting; 51. Heat-sensitive glass tube; 52. Support plate; 53. Pull rod; 54. Ventilation slot; 6. Electric push rod; 7. Exhaust box; 71. Fan; 72. Ventilation hole. Detailed Implementation

[0021] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., as in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0022] like Figure 1-4 As shown, a fireproof Bluetooth prepaid electricity meter disclosed herein includes a meter body 1, inside which is a control board 3. The control board 3 is the control circuit board of the meter body 1, on which a Bluetooth module and some other control components are installed. It also includes a temperature sensor 4, a heat-sensitive tube 5, and an exhaust box 7. A device box 2 is fixedly installed on the top of the meter body 1. A gas cylinder 21 is fixedly installed inside the device box 2. The gas cylinder 21 is used to store gas for fire extinguishing. The gas can be compressed carbon dioxide gas or dry powder. The outlet end of the gas cylinder 21 is connected to an inlet connector 22. To facilitate the replacement of the gas cylinder 21, the device box 2 is provided with a removable cover. The heat-sensitive tube 5 is installed inside the top of the meter body 1. One end of the heat-sensitive tube 5 is used to seal the inlet connector 22. The temperature sensor 4 is fixedly installed inside the meter body 1. The exhaust box 7 is installed inside the bottom of the meter body 1.

[0023] In this embodiment, an electric push rod 6 is fixedly installed inside the meter body 1 at the top level, flush with the position of the heat-sensitive pipe 5. The temperature sensor 4 controls the start and stop of the electric push rod 6 through a PLC.

[0024] In this embodiment, the heat-sensitive tube 5 includes a heat-sensitive glass tube 51 and a support plate 52. One end of the bottom of the device box 2 is provided with a vent 11 that connects to the inside of the meter body 1. The upper end of the heat-sensitive glass tube 51 is inserted into the vent 11. Pull rods 53 are fixedly installed at both ends of the upper surface of the support plate 52. The upper end of the pull rods 53 is fixedly connected to the top of the inside of the meter body 1. The lower end of the heat-sensitive glass tube 51 is in contact with the support plate 52. When the temperature reaches a certain level, the heat-sensitive glass tube 51 can burst, thereby detaching from the vent 11, so that carbon dioxide in the gas storage bottle 21 can be discharged.

[0025] Furthermore, to ensure heat dissipation inside the meter body 1, in this embodiment, a fan 71 is fixedly installed inside the exhaust box 7, and ventilation holes 72 are provided at the top and bottom of the exhaust box 7.

[0026] Furthermore, to ensure ventilation inside the meter body 1, in this embodiment, a heat dissipation vent 12 is provided at the upper outer side of the meter body 1.

[0027] Furthermore, in order to reduce the resistance of the support plate 52 to the carbon dioxide gas ejected from the vent 11, in this embodiment, multiple ventilation slots 54 are evenly opened at the edge of the support plate 52.

[0028] The specific operating steps are as follows: Temperature sensor 4 monitors the internal temperature of the meter body 1 in real time. When the internal control board 3 or the circuit of the meter body 1 is short-circuited and spontaneously combusts, temperature sensor 4 detects that the temperature exceeds the preset threshold of PLC. It can control electric push rod 6 to start. Electric push rod 6 will push heat-sensitive glass tube 51 to break or tilt it. At this time, carbon dioxide gas 21 in gas cylinder 21 can quickly enter the inside of the meter body 1, thereby isolating oxygen and extinguishing the fire.

[0029] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A fireproof Bluetooth prepayment electric meter, comprising an electric meter body, a control board is arranged inside the electric meter body, characterized in that: The temperature sensor, the heat-sensitive pipe and the exhaust box are further included, the device box is fixedly installed on the top of the electric meter body, the gas storage cylinder is fixedly installed in the device box, the gas storage cylinder is used for storing the gas for fire extinguishing, the gas outlet end of the gas storage cylinder is connected with the gas inlet joint in communication, the heat-sensitive pipe is installed on the top inside of the electric meter body, one end of the heat-sensitive pipe is used for closing the gas inlet joint, the temperature sensor is fixedly installed inside the electric meter body, and the exhaust box is installed on the bottom inside of the electric meter body.

2. The fire resistant Bluetooth prepay meter of claim 1, wherein: The electric push rod is fixedly installed on the top inside of the electric meter body in flush with the position of the heat-sensitive pipe, and the temperature sensor controls the start and stop of the electric push rod through the PLC.

3. The fire resistant Bluetooth prepay electric meter of claim 1, wherein: The heat-sensitive pipe includes the heat-sensitive glass pipe and the support disc, the bottom of the device box is provided with the gas outlet hole communicated with the inside of the electric meter body, the upper end of the heat-sensitive glass pipe is inserted into the gas outlet hole, the upper surface of the support disc is fixedly provided with the pull rod at both ends, the upper end of the pull rod is fixedly connected with the top inside of the electric meter body, and the lower end of the heat-sensitive glass pipe is in contact with the support disc.

4. The fire resistant Bluetooth prepay electric meter of claim 1, wherein: The fan is fixedly installed inside the exhaust box, and the ventilation holes are formed in the top and the bottom of the exhaust box.

5. The fire resistant Bluetooth prepay electric meter of claim 1, wherein: The heat dissipation opening is formed in the upper end of the outer side of the electric meter body.

6. The fire resistant Bluetooth prepay electric meter of claim 3, wherein: The support disc is uniformly provided with the multiple ventilation grooves at the disc edges. The support disc is uniformly provided with the multiple ventilation grooves at the disc edges.