A trip detection and maintenance device

Abstract

The utility model discloses a tripping detection and maintenance device relates to line detection technical field, including one incandescent bulb and one LED bulb, the incandescent bulb is as a branch, and the LED bulb is as another branch, and two branches are connected in parallel, and one end of two branches is connected commonly to form the input of tripping detection and maintenance device, and is connected alternating voltage input, the other end of two branches is connected commonly to form the output of tripping detection and maintenance device, and is connected the line to be detected. Through the tripping detection and maintenance device of the utility model is connected in series between alternating voltage input and fault line, can directly detect tripping failure and distinguish fault type through the light of the bulb on the device, can carry out live detection to realize the specific positioning of fault point, and can repair the fault caused by damp, improve the troubleshooting efficiency and reduce the maintenance cost and time.

Description

Technical Field

[0001] This utility model relates to the field of circuit testing technology, and in particular to a trip detection and maintenance device. Background Technology

[0002] Traditional circuit testing instruments mainly include multimeters and insulation resistance testers. While these instruments can detect parameters such as voltage, current, and resistance in a circuit, they are relatively complex to operate. Furthermore, these instruments cannot visually display short circuits and leakage currents in a circuit.

[0003] In addition, when a circuit trips, traditional circuit testing instruments usually need to perform circuit testing without power to find the cause of the fault. Although this testing method is relatively safe, it is difficult to determine the location of the fault.

[0004] Humid environments pose a significant threat to household electrical safety. In damp conditions, the insulation of electrical wires can deteriorate due to moisture, leading to current leakage and even short circuits. In such cases, troubleshooting and repairing short circuits or leakage typically requires a series of complex steps. First, identifying the problem is challenging. Since short circuits or leakage can occur anywhere in the wiring, and the problem may not be immediately apparent, this may involve inspecting all outlets, switches, light fixtures, and wiring connections. In humid environments, these problems can be more concealed because moisture can seep into areas that are not normally easily inspected, such as inside walls, under floors, or in ceilings. Second, troubleshooting these problems may require destructive access to the circuitry, such as digging into walls or removing switch and outlet panels. This not only damages interior finishes but may also require professional assistance, increasing repair costs and time. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model discloses a tripping detection and repair device that can intuitively detect the line where the tripping fault is located and identify the fault type, perform live detection to pinpoint the fault location, and repair faults caused by moisture, thereby improving fault diagnosis efficiency and reducing maintenance costs and time.

[0006] On one hand, a trip detection and maintenance device includes an incandescent bulb and an LED bulb; the incandescent bulb is one branch and the LED bulb is another branch, the two branches are connected in parallel, one end of the two branches is connected together to form an input terminal of the trip detection and maintenance device, which is connected to an AC voltage input; the other end of the two branches is connected together to form an output terminal of the trip detection and maintenance device, which is connected to the circuit to be tested.

[0007] Preferably, the rated power of the incandescent bulb is 15W to 100W.

[0008] Preferably, the rated power of the LED bulb is 3W to 10W.

[0009] Preferably, the LED bulb has inductive impedance.

[0010] Preferably, another incandescent bulb with a different rated power is included as another branch, which is connected in parallel with the two branches.

[0011] Preferably, a switch is added to each parallel branch, and the switch on each branch is connected in series with the light bulb of the branch. The independent opening and closing of each branch is achieved by opening and closing the switch of each branch.

[0012] On the other hand, a trip detection and maintenance device includes an incandescent bulb, an LED bulb, and a potentiometer; the incandescent bulb and the potentiometer are connected in series as one branch, the LED bulb as another branch, the two branches are connected in parallel, one end of the two branches is connected together to form an input terminal of the trip detection and maintenance device, which is connected to an AC voltage input; the other end of the two branches is connected together to form an output terminal of the trip detection and maintenance device, which is connected to the circuit to be tested.

[0013] Preferably, the trip detection and repair device further includes an ammeter and a voltmeter; one end of the voltmeter is connected to the input terminal of the trip detection and repair device, and the other end of the voltmeter is connected to the output terminal of the trip detection and repair device; the ammeter is a contact ammeter; the contact ammeter is connected in series with the input terminal of the trip detection and repair device and the AC voltage input, or the contact ammeter is connected in series with the output terminal of the trip detection and repair device and the circuit to be tested.

[0014] Preferably, the trip detection and maintenance device further includes an ammeter and a voltmeter; one end of the voltmeter is connected to the input terminal of the trip detection and maintenance device, and the other end of the voltmeter is connected to the output terminal of the trip detection and maintenance device; the ammeter is a non-contact ammeter; the measuring component of the non-contact ammeter is disposed on the connection line between the input terminal of the trip detection and maintenance device and the AC voltage input, or the measuring component of the non-contact ammeter is disposed on the connection line between the output terminal of the trip detection and maintenance device and the circuit to be tested.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) This utility model can directly observe the light emission of the bulbs by connecting the bulb assembly in series between the AC voltage input and the faulty circuit, including the brightness and flickering of the light emission, and can determine the location of the faulty circuit and the type of fault.

[0017] (2) This utility model realizes the function of live detection of faulty circuit by connecting the bulb assembly in series between the AC voltage input and the faulty circuit. The lighting and burning of the bulb serves as feedback and plays an indicative role in the fault troubleshooting process. This helps to find the specific location of the fault point in the faulty circuit, improves troubleshooting efficiency, and reduces costs.

[0018] (3) This utility model repairs faults caused by moisture by connecting a bulb assembly in series between the AC voltage input and the faulty circuit. It is particularly suitable for places that are difficult to inspect and repair, and does not require destructive access to the circuit, which can effectively reduce maintenance costs and time.

[0019] (4) This utility model uses a series of bulbs with a certain resistance to divide the voltage and limit the current in the circuit path during testing, thereby protecting the line, connection point or electrical equipment where the fault point is located.

[0020] (5) The rated power of the incandescent bulb preferred by this utility model is 15 to 100W, and the rated power of the LED bulb is 3W to 10W and has an inductive resistor, which can effectively realize the fault circuit detection function, fault type detection function, live detection function and moisture fault repair function of this device.

[0021] (6) By adding a voltmeter and an ammeter, the present invention detects and displays the voltage across the trip detection and repair device, and the ammeter detects the current flowing through the trip detection and repair device, providing numerical display and change of current and voltage, thus assisting the trip detection and repair device to more conveniently and effectively realize the functions of fault line detection, fault type detection, live detection and damp fault repair. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings;

[0023] Figure 1 The electrical structure of a trip detection and maintenance device according to an embodiment of this utility model. Figure 1 (Example 1);

[0024] Figure 2 The electrical structure of a trip detection and maintenance device according to an embodiment of this utility model. Figure 2 (Example 2);

[0025] Figure 3 The electrical structure of a trip detection and maintenance device according to an embodiment of this utility model. Figure 3 (Example 3);

[0026] Figure 4 The electrical structure of a trip detection and maintenance device according to an embodiment of this utility model. Figure 4 (Example 4);

[0027] Figure 5 The electrical structure of a trip detection and maintenance device according to an embodiment of this utility model. Figure 5 (Example 5) Detailed implementation method:

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0029] A short circuit refers to the phenomenon where a phase wire (live wire) is directly shorted to another phase wire or to the neutral wire (zero wire) without passing through a load, causing a sharp increase in current.

[0030] Leakage refers to the phenomenon where current deviates from its intended circuit path and flows into the external environment or other circuits.

[0031] Example 1:

[0032] like Figure 1 As shown, a trip detection and maintenance device includes three switches 4, an incandescent bulb 1, a second incandescent bulb 2, and an LED bulb 3. One switch 4 is connected in series with the incandescent bulb 1 as branch 1, one switch 4 is connected in series with the second incandescent bulb 2 as branch 2, and one switch 4 is connected in series with the LED bulb 3 as branch 3. One end of the three branches is connected together to form an input terminal of the trip detection and maintenance device, and the other end of the three branches is connected together to form an output terminal of the trip detection and maintenance device, realizing the parallel connection of the three branches.

[0033] In this embodiment, the rated voltage of all three bulbs is AC 220V; the rated power of incandescent bulb 1 is 100W, with purely resistive impedance; the rated power of the second incandescent bulb 2 is 15W to 60W, with purely resistive impedance; and the rated power of LED bulb 3 is 3W to 10W, with inductive impedance.

[0034] The detection principle of the trip detection and maintenance device in this embodiment of the utility model is as follows:

[0035] If a short circuit causes the circuit breaker to trip, or a leakage current causes the leakage current circuit breaker to trip, it indicates a fault in the circuit or the equipment connected to the circuit. This fault connects two conductors that should not be connected and have a potential difference. Applying an AC voltage (AC 220V in this embodiment) to the circuit where the fault is located, and connecting it in series with the trip detection and repair device (with switch 4 closed), creates an electrical connection from the applied AC voltage through this device to the point of difference in potential (including ground, common neutral, or grounding electrode) connected to the fault. This creates a potential difference, forming a circuit path, which causes the bulb on the trip detection and repair device connected in series to light up or flicker (the specific phenomenon depends on the voltage and current flowing through the bulb and the characteristics of the selected bulb under the corresponding voltage and current). If there is no fault in the equipment, and no household appliances are turned on, the above electrical connection cannot form a circuit path, and the bulb on this device will not light up. Therefore, tripping faults can be detected by observing the on / off state or flickering of the bulb on the tripping detection and repair device of this utility model embodiment.

[0036] The principle of moisture fault repair for the trip detection and repair device of this utility model embodiment is as follows:

[0037] After a circuit path is formed on a damp fault line through the above-mentioned connection, current flows through the damp fault point, causing different physical and chemical effects, including heating, electrolysis, and evaporation caused by heat, thereby reducing the amount of moisture at the fault point and cutting off the unintended electrical connection formed by moisture, thus achieving the repair of the damp fault.

[0038] In the first use case of this embodiment, the device is used to determine the line where the fault is located and the type of fault.

[0039] The steps for detecting leakage current using the trip detection and repair device of this embodiment are as follows:

[0040] Connect one end of this device to an AC 220V voltage source (e.g., the AC 220V live wire in a distribution box), and the other end to the circuit to be tested (the circuit to be tested is not electrically connected to the common neutral wire), thus achieving a series connection; close any switch 4 on the device, and connect the corresponding light bulb in series. If the light bulb lights up, it can be determined that there is a leakage in the circuit to be tested. The light bulb lights up in the following ways:

[0041] In scenario 1, if the leakage current is relatively large, LED bulb 3 connected in series alone (with only branch circuit 3 switch 4 closed) will light up; incandescent bulb 1 connected in series alone (with only branch circuit 1 switch 4 closed) or second incandescent bulb 2 connected in series alone (with only branch circuit 2 switch closed) may light up all of them or only one of them may light up.

[0042] Scenario 2: If the leakage current is relatively small, only the LED bulb 3 connected in series will light up. The LED bulb 3 will exhibit different lighting phenomena depending on the magnitude of the leakage current, as follows:

[0043] In scenario 2.1, the LED bulb continues to emit light.

[0044] In case 2.2, the LED bulb flickers, and the leakage current is relatively smaller than that in case 1.

[0045] It is worth mentioning that, in practice, the relative magnitude of leakage current can be determined based on the flickering frequency of the LED bulb; circuits with higher flickering frequencies have larger leakage currents compared to circuits with lower flickering frequencies.

[0046] In practice, multiple switches can be closed simultaneously, and different light bulbs can be connected in parallel and then in series into the circuit. This can also achieve leakage current detection. More detailed judgments can be made based on the different light bulbs' illumination patterns, assisting testing personnel in troubleshooting.

[0047] Choosing an LED bulb 3 with a rated power of 3W to 10W and inductive impedance is the preferred practice in practical applications that can achieve the above-mentioned detection effect.

[0048] The steps for detecting a short circuit using the trip detection and maintenance device of this embodiment are as follows:

[0049] In the case of a short circuit, when testing one wire in a loop, the other wire in the loop must be connected to the common neutral wire to create a potential difference and thus form a circuit path.

[0050] Connect one end of this device to an AC 220V power supply and the other end to the circuit to be tested. Close the switch 4 connected to the incandescent bulb 1. If the incandescent bulb 1 lights up, it can be determined that there is a short circuit fault.

[0051] In short-circuit testing, the light bulb plays a certain role in voltage division and current limiting. While detecting the fault, it can also protect the circuit where the fault is located, and at the same time, the light bulb also serves as an indicator.

[0052] Choosing a rated power of 100W for incandescent bulb 1 is the preferred practice in practical applications to achieve the above-mentioned short-circuit detection effect. In practice, a rated power of incandescent bulb 1 other than this power can also achieve the above-mentioned short-circuit detection function.

[0053] In practice, for short circuits, either the second incandescent bulb 2 or the LED bulb 3 can be connected in series separately to emit light. Alternatively, multiple switches can be closed simultaneously, and different bulbs can be connected in parallel and then in series into the circuit to achieve the same short circuit detection function. Furthermore, more detailed and nuanced judgments can be made based on the illumination of different bulbs, assisting the testing personnel in troubleshooting.

[0054] In the second usage scenario of this embodiment, after confirming the circuit and fault type, the live troubleshooting function of this device is used to determine the specific fault point in the circuit.

[0055] The specific steps for implementing the live-line troubleshooting function using the trip detection and maintenance device of this embodiment are as follows:

[0056] Connect the trip detection and repair device of this embodiment to the faulty line as described in Scenario 1, ensuring a circuit connection at the fault point. The corresponding bulb on the device remains energized and illuminated, serving as an indicator. Disconnect the electrical connections of each appliance from the faulty circuit one by one. If the fault is located in a particular appliance, disconnecting that appliance will cause the bulb on the device to turn off, providing real-time feedback to maintenance personnel to identify the fault as related to that appliance. If the bulb remains lit after disconnecting all appliances in the circuit, a process of elimination can be used to determine if a fault exists on the line.

[0057] In the third usage scenario of this embodiment, after identifying the specific fault point and type, targeted repair operations can be performed. If the fault is caused by moisture, it can be repaired using the moisture fault repair function of the device in this embodiment.

[0058] The specific steps for implementing the damp fault repair function using the trip detection and repair device of this utility model embodiment are as follows:

[0059] Connect one end of the device to AC 220V voltage and the other end to the circuit that has malfunctioned due to moisture. Close the switch 4 on the branch where the second incandescent bulb 2 is located. The circuit is powered on and the incandescent bulb 2 lights up. Continue this process until the incandescent bulb 2 goes out, and the moisture fault repair is completed.

[0060] Selecting a rated power of 15W to 60W for the second incandescent bulb 2 is the preferred practice in practical applications to achieve the above-mentioned wet obstacle repair effect. Selecting a rated power of the second incandescent bulb 2 outside this range can also achieve the above-mentioned wet obstacle repair function.

[0061] Furthermore, the same function of moisture fault repair can be achieved through various different combinations of switch closures (i.e., different bulbs connected in parallel). Closing different switch combinations will result in different equivalent resistance values ​​for the entire device. For example, closing all three switches 4, i.e., connecting three bulbs in parallel, results in the lowest equivalent resistance value and the highest current in the circuit. In addition, different bulb combinations can be implemented at different times to achieve a flexible moisture fault repair strategy.

[0062] It should be noted that the second incandescent bulb 2 in this embodiment can be replaced by using a connection structure in series with an incandescent bulb (preferably with a rated power of 100W) and a potentiometer, which allows for more flexible implementation of all the functions of the trip detection and maintenance device in this embodiment. By adjusting the resistance value of the potentiometer, the resistance value connected in series in the circuit can be precisely changed, thereby controlling the magnitude of the current flowing in the circuit and meeting different usage requirements under different conditions. Specific settings can be made as needed, and this embodiment does not impose any limitations.

[0063] Example 2:

[0064] like Figure 2 As shown, a trip detection and maintenance device has the same main structure as Embodiment 1, except that the second incandescent bulb 2 and its branch circuit switch 4 are removed.

[0065] The trip detection and maintenance device in Example 2 can also realize leakage detection, short circuit detection, fault location through live detection, and maintenance of faults caused by moisture, which will not be described in detail here.

[0066] Example 3:

[0067] like Figure 3 As shown, a trip detection and maintenance device has the same main structure as Embodiment 1, except that the switch on each branch is removed, the second incandescent bulb 2 and its branch are removed, and the rated power of the incandescent bulb 1 is 15W.

[0068] The trip detection and maintenance device in Example 3 can also realize leakage detection, short circuit detection, fault location through live detection, and maintenance of faults caused by moisture, which will not be described in detail here.

[0069] Example 4:

[0070] like Figure 4As shown, a trip detection and maintenance device has the same main structure as Embodiment 1, except that it also includes an ammeter and a voltmeter 5; one end of the voltmeter 5 is connected to the input terminal of the trip detection and maintenance device, and the other end of the voltmeter 5 is connected to the output terminal of the trip detection and maintenance device; the ammeter is a non-contact ammeter 6; the measuring component of the non-contact ammeter 6 is set at the connection line between the input terminal of the trip detection and maintenance device and the AC voltage input.

[0071] In this embodiment, the voltmeter 5 has a range of 10V-500V, and the non-contact ammeter 6 has a range of 1mA-1A.

[0072] The non-contact ammeter 6 is not directly electrically connected to the circuit being measured. Instead, it uses a probe or induction coil to acquire the induced signal of the current in the circuit being measured, and processes the induced signal and displays the current value at the connected meter head. In one specific embodiment, the non-contact ammeter 6 includes a meter head and an induction coil that are electrically connected to each other. The line of the AC voltage input terminal of the trip detection and maintenance device passes through the induction coil. The current in the circuit being measured generates an induced current in the induction coil, and the meter head obtains and displays the current information accordingly.

[0073] Example 5:

[0074] A trip detection and maintenance device has the same main structure as Embodiment 2, except that it also includes an ammeter and a voltmeter 5; one end of the voltmeter 5 is connected to the input terminal of the trip detection and maintenance device, and the other end of the voltmeter 5 is connected to the output terminal of the trip detection and maintenance device; the ammeter is a contact ammeter 7; the contact ammeter 7 is connected in series with the output terminal of the trip detection and maintenance device and the circuit to be tested.

[0075] In this embodiment, the voltmeter 5 has a range of 10V-500V, and the contact ammeter 7 has a range of 1mA-1A.

[0076] The trip detection and repair devices in Examples 4 and 5 incorporate a voltmeter and an ammeter. The voltmeter detects and displays the voltage across the trip detection and repair device, while the ammeter detects the current flowing through it. Compared to a light bulb, this provides more precise quantitative display and change of current and voltage values, enabling the trip detection and repair device to more conveniently and effectively perform functions such as fault line detection, fault type detection, live-line detection, and damp fault repair.

[0077] In real-life scenarios, where only one main leakage current switch is connected to the main circuit breaker, and multiple branch circuits have minor leakage currents, the cumulative leakage current from multiple circuits may cause the leakage current switch to trip. Traditional inspection methods are difficult to detect in this situation. The tripping detection and repair device of this utility model embodiment can conveniently detect whether there are minor leakage currents in each circuit one by one, and it can be observed intuitively and is easy to operate.

[0078] The trip detection and maintenance device of this utility model can perform live detection to pinpoint the fault location, and uses the on / off state of the light bulb as an indication to provide real-time feedback during fault diagnosis, thereby improving detection efficiency.

[0079] The trip detection and repair device of this utility model can be used to repair faults caused by moisture, especially moisture faults existing in the circuit. It is suitable for places that are not easy to inspect and repair, such as inside walls, under floors, inside equipment or ceilings. It does not require destructive access to the circuit, and can effectively reduce maintenance costs and time.

[0080] The tripping detection and repair device of this utility model is applicable to the detection and repair of tripping faults in residences, hotels, commercial and office buildings, schools and hospitals.

[0081] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trip detection and maintenance device, comprising an incandescent light bulb, characterized in that, It also includes an LED bulb; the incandescent bulb is one branch, the LED bulb is another branch, the two branches are connected in parallel, one end of the two branches are connected together to form an input terminal of the trip detection and maintenance device, which is connected to the AC voltage input; the other end of the two branches are connected together to form an output terminal of the trip detection and maintenance device, which is connected to the circuit to be tested.

2. The trip detection and maintenance device according to claim 1, characterized in that, The rated power of the incandescent bulb is 15W to 100W.

3. The trip detection and maintenance device according to claim 1, characterized in that, The rated power of the LED bulb is 3W to 10W.

4. The trip detection and maintenance device according to claim 1, characterized in that, The LED bulb has inductive impedance.

5. The trip detection and maintenance device according to claim 1, characterized in that, It also includes another incandescent bulb with a different rated power as another branch, which is connected in parallel with the two branches.

6. The trip detection and maintenance device according to claim 1, characterized in that, Each parallel branch is equipped with a switch, and the switch on each branch is connected in series with the light bulb in that branch. The independent switching of each branch is achieved by opening and closing the switch on each branch.

7. A trip detection and maintenance device, comprising an incandescent light bulb, characterized in that, It also includes an LED bulb and a potentiometer; the incandescent bulb and the potentiometer are connected in series as one branch, and the LED bulb is connected as another branch. The two branches are connected in parallel, and one end of the two branches is connected together to form an input terminal of the trip detection and maintenance device, which is connected to the AC voltage input; the other end of the two branches is connected together to form an output terminal of the trip detection and maintenance device, which is connected to the circuit to be tested.

8. The trip detection and maintenance device according to claim 1 or 7, characterized in that, It also includes an ammeter and a voltmeter; one end of the voltmeter is connected to the input terminal of the trip detection and maintenance device, and the other end of the voltmeter is connected to the output terminal of the trip detection and maintenance device; the ammeter is a contact ammeter; the contact ammeter is connected in series with the input terminal of the trip detection and maintenance device and the AC voltage input, or the contact ammeter is connected in series with the output terminal of the trip detection and maintenance device and the circuit to be tested.

9. The trip detection and maintenance device according to claim 1 or 7, characterized in that, It also includes an ammeter and a voltmeter; one end of the voltmeter is connected to the input terminal of the trip detection and maintenance device, and the other end of the voltmeter is connected to the output terminal of the trip detection and maintenance device; the ammeter is a non-contact ammeter; the measuring component of the non-contact ammeter is located at the connection line between the input terminal of the trip detection and maintenance device and the AC voltage input, or the measuring component of the non-contact ammeter is located at the connection line between the output terminal of the trip detection and maintenance device and the circuit to be tested.

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