Intelligent gas insulator with electric leakage detection and gas water heater

Abstract

The utility model discloses intelligent gas insulator and gas water heater with leakage detection, relate to gas equipment technical field, include: insulation kit, outer thread joint, inner thread joint and round pipe, the round pipe is located the inside of insulation kit, the outer thread joint is clamped in the outside of insulation kit one end, the inner thread joint is clamped in the inside of insulation kit other end, still include PCB detection circuit, the PCB detection circuit embeds in the insulation kit, the PCB detection circuit is two -way difference detection circuit. Advantageous effect: realize physical insulation isolation through insulation kit, prevent current through gas pipeline conduction, while through the potential difference between PCB detection circuit real -time monitoring outer thread joint and inner thread joint, realize the active detection and early warning of leakage. Through the setting of metal touch piece allows user active trigger detection loop, carries out electrified detection, is convenient for daily safety inspection, and enhances security.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, specifically to an intelligent gas insulator with leakage detection and a gas water heater. Background Technology

[0002] In existing technologies, there is a risk of electric leakage when metal pipes are connected to gas appliances (such as water heaters, integrated stoves, fireplaces, etc.).

[0003] Currently, traditional insulators only isolate current through physical structure (such as the pipe leakage insulator with patent CN221258144U), but lack real-time leakage detection capability and cannot proactively warn of potential electrical faults. When equipment ages or wiring malfunctions, the failure to detect leakage in time may lead to electric shock or gas explosion accidents.

[0004] Therefore, there is an urgent need for an intelligent device that integrates insulation protection and leakage detection to improve the safety of gas usage.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In response to the problems in related technologies, the purpose of this utility model is to propose an intelligent gas insulator and gas water heater with leakage current detection, so as to solve the problem that traditional insulators lack leakage current detection function and cannot actively warn of electrical faults, thereby improving the safety of gas use.

[0007] The technical solution of this utility model is implemented as follows:

[0008] One aspect of this utility model is:

[0009] A smart gas insulator with leakage current detection includes: an insulating kit, an external threaded connector, an internal threaded connector, and a round tube. The round tube is located inside the insulating kit. The external threaded connector is snapped onto the outside of one end of the insulating kit, and the internal threaded connector is snapped onto the inside of the other end of the insulating kit. It also includes a PCB detection circuit embedded within the insulating kit. The PCB detection circuit is a bidirectional differential detection circuit, including a first detection branch and a second detection branch, wherein;

[0010] The first detection branch includes a detection point A, a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a first indicator light DS1 connected in series.

[0011] The second detection branch includes a detection point B, a resistor R7, a resistor R8, a resistor R9, a resistor R10, and a second indicator light DS2 connected in series.

[0012] The detection point A and the detection point B are used to connect the external threaded joint and the internal threaded joint, respectively.

[0013] Furthermore, the PCB detection circuit also includes diodes D1 and D2 connected in reverse parallel to the first detection branch and the second detection branch, respectively, and diodes D1 and D2 are used to suppress abnormal high voltage in the detection circuit.

[0014] Furthermore, the diode is model SM4007PL.

[0015] Furthermore, the PCB detection circuit is also electrically connected to a metal touch pad, which is connected to the second detection branch through a series resistor R10 to form a detection loop.

[0016] Furthermore, detection point A and detection point B are metal probes, respectively.

[0017] Furthermore, both the external threaded connector and the internal threaded connector are made of metal.

[0018] Furthermore, the insulating kit is made of rigid plastic insulating material with a hexagonal structure with rounded corners on the outside.

[0019] Another aspect of this utility model:

[0020] A gas water heater includes: the aforementioned intelligent gas insulator with leakage detection and the gas water heater body, an internal threaded connector connecting the gas inlet pipe to the gas water heater body, and an external threaded connector connecting the gas intake pipe.

[0021] The beneficial effects of this utility model are:

[0022] This invention achieves physical insulation isolation through an insulating kit, preventing current conduction through the gas pipeline. Simultaneously, a PCB detection circuit monitors the potential difference between the external and internal threaded joints in real time, enabling proactive detection and early warning of leakage. Its first and second detection branches form a bidirectional differential circuit, capable of simultaneously detecting forward and reverse leakage signals, improving detection sensitivity and reliability. When leakage current exists between detection point A and detection point B, the indicator light DS1 or DS2 of the corresponding branch illuminates, alerting the user to the risk of leakage. Meanwhile, the reverse-parallel diodes D1 and D2 effectively suppress any abnormal high voltage that may occur in the detection circuit, protecting the detection circuit components from damage and extending the device's lifespan. Furthermore, the inclusion of a metal touch plate allows the user to actively trigger the detection circuit, facilitating routine safety checks and enhancing safety.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an intelligent gas insulator with leakage detection and a gas water heater according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of an intelligent gas insulator with leakage detection and a gas water heater according to an embodiment of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the PCB detection circuit of an intelligent gas insulator and a gas water heater with leakage current detection according to an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Insulation kit; 2. External threaded connector; 3. Internal threaded connector; 4. Round tube; 5. PCB test circuit; 6. Metal touch plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0032] According to an embodiment of the present invention, an intelligent gas insulator with leakage current detection and a gas water heater are provided.

[0033] like Figures 1-3 As shown, Embodiment 1 of the present invention is as follows:

[0034] The intelligent gas insulator with leakage current detection includes: an insulating kit 1, an external threaded connector 2, an internal threaded connector 3, and a round tube 4. The round tube 4 is located inside the insulating kit 1. The external threaded connector 2 is snapped onto the outside of one end of the insulating kit, and the internal threaded connector 3 is snapped onto the inside of the other end of the insulating kit 1. It also includes a PCB detection circuit 5, which is embedded in the insulating kit 1. The PCB detection circuit 5 is a bidirectional differential detection circuit, including a first detection branch and a second detection branch. The first detection branch includes a detection point A, a resistor R3, a resistor R4, a resistor R5, a resistor R6, and a first indicator light DS1 connected in series. The second detection branch includes a detection point B, a resistor R7, a resistor R8, a resistor R9, a resistor R10, and a second indicator light DS2 connected in series. Detection points A and B are used to connect the external threaded connector 2 and the internal threaded connector 3, respectively.

[0035] Among them, detection points A and B are metal probes. External thread connector 2 and internal thread connector 3 are made of metal. Insulation kit 1 is made of rigid plastic insulation material with a hexagonal structure with rounded corners on the outside.

[0036] The PCB detection circuit 5 also includes diodes D1 and D2 connected in reverse parallel to the first and second detection branches. Diodes D1 and D2 are used to suppress abnormal high voltage in the detection circuit. The diode model is SM4007PL.

[0037] Using the above method, when there is no leakage in the pipeline, the current at detection point A and detection point B are equal, and neither DS1 nor DS2 will light up. If there is a leakage at the external threaded connector 2, the current at detection point A will increase abnormally, and resistors R3-R6 will output a positive voltage signal, triggering the first indicator light DS1 to light up and alarm. If there is a leakage at the internal threaded connector 3, the current at detection point B will increase abnormally, and resistors R7-R10 will output a reverse voltage signal, triggering the second indicator light DS2 to light up and alarm.

[0038] In addition, the PCB detection circuit 5 is electrically connected to the metal touch piece 6, which is connected to the second detection branch through a series resistor R10 to form a detection circuit.

[0039] In this technical solution, when the user's finger touches the metal touch piece 6, it is equivalent to connecting the human body resistance between the detection point B and the ground, forming a detection circuit. There is no current in the circuit, so DS1 and DS2 do not light up. When the current path is "pipe → detection point B → R10 → metal touch piece 6 → human body → ground", a voltage difference is generated across R10. After rectification by the diode, it triggers DS2 to flash alarm, realizing live detection.

[0040] Example 2

[0041] Embodiment 2 of the present invention is as follows:

[0042] The gas water heater includes the aforementioned intelligent gas insulator with leakage detection and the gas water heater body. The internal threaded connector 3 is connected to the gas inlet pipe of the gas water heater body, and the external threaded connector 2 is connected to the gas intake pipe.

[0043] This technical solution connects to the gas pipeline system via external threaded connector 2 and internal threaded connector 3, and is linked to the gas water heater. The PCB detection circuit 5 monitors the pipeline current in real time; if leakage is detected, DS1 and / or DS2 illuminate. Additionally, if the pipeline is energized when the user touches the metal contact plate 6 with their finger, DS2 flashes, indicating that immediate power disconnection and maintenance are required.

[0044] In summary, the above-mentioned technical solution of this utility model achieves the following effects: physical insulation is achieved through the insulating kit to prevent current conduction through the gas pipeline; simultaneously, the potential difference between the external threaded joint and the internal threaded joint is monitored in real time through the PCB detection circuit, enabling active detection and early warning of leakage. Its first and second detection branches constitute a bidirectional differential circuit, which can simultaneously detect forward and reverse leakage signals, improving detection sensitivity and reliability. When there is leakage current between detection point A and detection point B, the indicator light DS1 or DS2 of the corresponding branch illuminates, alerting the user to the risk of leakage. At the same time, the reverse-parallel diodes D1 and D2 effectively suppress any abnormal high voltage that may occur in the detection circuit, protecting the detection circuit components from damage and extending the device's service life. Furthermore, the metal touch piece 6 allows the user to actively trigger the detection circuit, facilitating daily safety checks and enhancing safety.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Intelligent gas insulators with leakage current detection, including: An insulating kit (1), an external threaded connector (2), an internal threaded connector (3), and a round tube (4) are provided. The round tube (4) is located inside the insulating kit (1). The external threaded connector (2) is snapped onto the outside of one end of the insulating kit, and the internal threaded connector (3) is snapped onto the inside of the other end of the insulating kit (1). The kit is characterized in that it further includes a PCB detection circuit (5), which is embedded in the insulating kit (1). The PCB detection circuit (5) is a bidirectional differential detection circuit, including a first detection branch and a second detection branch. The first detection branch includes a detection point A, a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a first indicator light DS1 connected in series. The second detection branch includes a detection point B, a resistor R7, a resistor R8, a resistor R9, a resistor R10, and a second indicator light DS2 connected in series. The detection point A and the detection point B are used to connect the external threaded connector (2) and the internal threaded connector (3), respectively.

2. The intelligent gas insulator with leakage current detection according to claim 1, characterized in that, The PCB detection circuit (5) further includes diodes D1 and D2 connected in reverse parallel to the first detection branch and the second detection branch, respectively. Diodes D1 and D2 are used to suppress abnormal high voltage in the detection circuit.

3. The intelligent gas insulator with leakage current detection according to claim 2, characterized in that, The diode is model SM4007PL.

4. The intelligent gas insulator with leakage current detection according to claim 1, characterized in that, The PCB detection circuit (5) is also electrically connected to the metal touch piece (6), which is connected to the second detection branch through a series resistor R10 to form a detection circuit.

5. The intelligent gas insulator with leakage current detection according to claim 1, characterized in that, Detection point A and detection point B are metal probes, respectively.

6. The intelligent gas insulator with leakage current detection according to claim 1, characterized in that, The external threaded connector (2) and the internal threaded connector (3) are both made of metal.

7. The intelligent gas insulator with leakage current detection according to claim 6, characterized in that, The insulating kit (1) is made of rigid plastic insulating material and has a hexagonal structure with rounded corners on the outside.

8. A gas water heater, characterized in that, include: The intelligent gas insulator with leakage detection and the gas water heater body according to any one of claims 1-7, wherein the internal threaded connector (3) is connected to the gas inlet pipe of the gas water heater body, and the external threaded connector (2) is connected to the gas inlet pipe.

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