CN211235983U - Electrical fault measuring device - Google Patents
Electrical fault measuring device Download PDFInfo
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- CN211235983U CN211235983U CN201921428786.1U CN201921428786U CN211235983U CN 211235983 U CN211235983 U CN 211235983U CN 201921428786 U CN201921428786 U CN 201921428786U CN 211235983 U CN211235983 U CN 211235983U
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- emitting diode
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- electrical fault
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Abstract
The utility model discloses an electrical fault measuring device belongs to the electrical equipment field. The measuring device comprises a detection module, a positive measuring electrode, a negative measuring electrode and a shell, wherein the detection module comprises a light-emitting diode, a single-pole double-throw switch, a power supply, a capacitor and a resistor. The utility model provides an electrical fault measuring device, through the control of single-pole double-throw switch and combine the emitting diode condition of giving out light to make this electrical fault measuring device can investigate conductor break-make condition and surveyed power supply behavior fast effectively.
Description
Technical Field
The utility model belongs to the electrical equipment field, in particular to electrical fault measuring device.
Background
The universal meter is a common electrical equipment fault measuring instrument and can effectively check the on-off condition of a conductor and the working condition of a power supply.
When the on-off condition of a conductor is measured, the gear of a universal meter is driven to a current gear, two measuring pens of the universal meter are respectively placed at two ends of the conductor, and then the on-off condition of the conductor is judged by observing the rotation condition of a pointer of the universal meter; when measuring power supply behavior, beat the voltage shelves with the universal meter gear, place two measuring pens of universal meter at the positive negative pole of power respectively, then through observing the universal meter pointer rotation condition, judge power supply behavior.
In the working process of maintaining electrical equipment, the on-off condition of a conductor and the working condition of a power supply are usually measured alternately for many times, so that the gear of the multimeter needs to be adjusted repeatedly. However, the multimeter has a large number of gears, such as a voltage gear, a current gear, an ohmic gear, a capacitance gear, a buzzer gear, etc., and it is very troublesome to repeatedly and accurately select the gears among the gears. Also, once a selection is wrong, it can cause the multimeter to burn out. Therefore, the multimeter is inconvenient to use under the working condition that only the on-off of the conductor and the work of the power supply are measured.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an electrical fault measuring device can investigate conductor break-make condition and power behavior fast, improves work efficiency. The technical scheme is as follows:
the embodiment of the utility model provides an electrical fault measuring device, which comprises a detection module, a positive measuring electrode, a negative measuring electrode and a shell;
the detection module is arranged inside the shell, the positive measuring electrode and the negative measuring electrode are both arranged outside the shell, and the positive measuring electrode and the negative measuring electrode are respectively and electrically connected with the detection module through respective wires;
the detection module comprises a light-emitting diode, a single-pole double-throw switch, a power supply, a capacitor and a resistor, wherein the negative measurement electrode is connected with the negative electrode of the light-emitting diode, the positive electrode of the light-emitting diode is connected with the common end of the single-pole double-throw switch, the first terminal of the single-pole double-throw switch is connected with the positive electrode of the power supply, the negative electrode of the power supply is connected with the positive measurement electrode, and the second terminal of the single-pole double-throw switch is connected with the positive measurement electrode;
the capacitor is connected in series between the common terminal of the single-pole double-throw switch and the anode of the light emitting diode, and the resistor and the capacitor are connected in parallel.
Optionally, the resistor is a sliding resistor.
Optionally, the electrical fault measurement device further comprises a buzzer, and the buzzer is connected in series with the light emitting diode.
Optionally, two through holes are formed in the outer wall of the shell, the light emitting diode is arranged in one through hole, and the single-pole double-throw switch is arranged in the other through hole.
Optionally, the housing is provided with two ground snap rings arranged at intervals, and each snap ring is provided with a through groove.
Optionally, each inner wall of the through groove is provided with a rubber ring.
Optionally, the housing is a square structural member.
Optionally, the positive measurement electrode and the negative measurement electrode are both electrode clamps.
Optionally, the housing is provided with two handles, and the two handles are arranged at a distance from each other.
Optionally, the housing is an insulator.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
through the embodiment of the utility model provides an electrical fault measuring device, when the conductor break-make condition needs to be measured, positive measuring electrode and negative measuring electrode are connected with the both ends of conductor respectively earlier, then the public end in the single-pole double-throw switch is connected with first wiring end, and the power is established ties with emitting diode this moment, if power, emitting diode and conductor form closed loop, then emitting diode is bright, otherwise, emitting diode is not bright to judge the conductor break-make condition through emitting diode luminous condition; when the working condition of the tested power supply needs to be measured, the positive measuring electrode is connected with the positive electrode of the tested power supply, the negative measuring electrode is connected with the negative electrode of the tested power supply, then the common end of the single-pole double-throw switch is connected with the second wiring terminal, if a closed loop is formed between the tested power supply and the light-emitting diode, the light-emitting diode is bright, otherwise, the light-emitting diode is not bright, and therefore the working condition of the tested power supply is judged through the light-emitting condition of the light-emitting diode. That is to say, through the control of single-pole double-throw switch, make the common terminal of single-pole double-throw switch can be connected with first wiring terminal or second wiring terminal, these two kinds of connection methods are simple and convenient, just also make this electrical fault measuring device can effectively fast investigation conductor break-make condition and surveyed power supply operating condition.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electrical fault measurement apparatus according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a detection module according to an embodiment of the present invention.
The symbols in the drawings represent the following meanings:
1. a detection module; 11. a light emitting diode; 12. a single pole double throw switch; 121. a common terminal; 122. a first terminal; 123. a second terminal; 13. a power source; 21. a positive measurement electrode; 22. a negative measurement electrode; 3. a capacitor; 4. a resistor; 5. a buzzer; 6. a housing; 61. a snap ring; 611. a through groove; 612. a rubber ring; 62. a handle; 100. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an electrical fault measurement apparatus provided in an embodiment of the present invention, as shown in fig. 1, the electrical fault measurement apparatus includes a detection module 1, a positive measurement electrode 21, a negative measurement electrode 22, and a housing 6.
Fig. 2 is a schematic circuit diagram of the detection module provided in the embodiment of the present invention, as shown in fig. 2, the detection module 1 is disposed inside the casing 6, the positive measurement electrode 21 and the negative measurement electrode 22 are disposed outside the casing 6, and the positive measurement electrode 21 and the negative measurement electrode 22 are electrically connected to the detection module 1 through respective wires.
The detection module 1 comprises a light-emitting diode 11, a single-pole double-throw switch 12, a power supply 13, a capacitor 3 and a resistor 4, wherein a negative measurement electrode 22 is connected with the negative electrode of the light-emitting diode 11, the positive electrode of the light-emitting diode 11 is connected with a common terminal 121 of the single-pole double-throw switch 12, a first terminal 122 of the single-pole double-throw switch 12 is connected with the positive electrode of the power supply 13, the negative electrode of the power supply 13 is connected with a positive measurement electrode 21, and a second terminal 123 of the single-pole double-throw switch 12 is connected with the positive measurement electrode 21.
The capacitor 3 is connected in series between the common terminal 121 of the single-pole double-throw switch 12 and the anode of the light emitting diode 11, and the resistor 4 is connected in parallel with the capacitor 3.
Through the embodiment of the utility model provides an electrical fault measuring device, when the conductor break-make condition needs to be measured, positive measuring electrode and negative measuring electrode are connected with the both ends of conductor respectively earlier, then the public end in the single-pole double-throw switch is connected with first wiring end, and the power is established ties with emitting diode this moment, if power, emitting diode and conductor form closed loop, then emitting diode is bright, otherwise, emitting diode is not bright to judge the conductor break-make condition through emitting diode luminous condition; when the working condition of the tested power supply needs to be measured, the positive measuring electrode is connected with the positive electrode of the tested power supply, the negative measuring electrode is connected with the negative electrode of the tested power supply, then the common end of the single-pole double-throw switch is connected with the second wiring terminal, if a closed loop is formed between the tested power supply and the light-emitting diode, the light-emitting diode is bright, otherwise, the light-emitting diode is not bright, and therefore the working condition of the tested power supply is judged through the light-emitting condition of the light-emitting diode. That is to say, through the control of single-pole double-throw switch, make the common terminal of single-pole double-throw switch can be connected with first wiring terminal or second wiring terminal, these two kinds of connection methods are simple and convenient, just also make this electrical fault measuring device can effectively fast investigation conductor break-make condition and surveyed power supply operating condition.
In the embodiment of the present invention, the capacitor 3 is connected in series between the common terminal 121 of the single-pole double-throw switch 12 and the anode of the light emitting diode 11, and the resistor 4 is connected in parallel with the capacitor 3.
In the above implementation, the capacitor 3 and the resistor 4 are respectively connected in series with the light emitting diode 11, the capacitor 3 plays a role of preventing voltage abrupt change when the measuring device works, and the parallel resistor 4 plays a role of absorbing electric energy of the capacitor 3 and preventing the capacitor 3 from discharging excessive current.
I.e. the current through the light emitting diode 11 is shunted to the capacitor 3 and the resistor 4, thereby reducing the current through the light emitting diode 11.
Illustratively, the capacitor 3 and the resistor 4 are respectively connected in series with the light emitting diode 11, and the current from the power supply 13 passes through the light emitting diode 11 after passing through the current limiting of the capacitor 3 and the resistor 4.
Optionally, the resistor 4 is a sliding resistor.
In the above embodiment, the resistor 4 is a sliding resistor, which facilitates the adjustment of the resistance of the resistor 4, and thus facilitates a better limitation of the current through the light emitting diode 11. Before the on-off condition of the conductor is measured, the resistance value of the slide rheostat is adjusted to the maximum to prevent the current passing through the light-emitting diode 11 from being overlarge, and then the resistance value of the slide rheostat is adjusted to be small according to the actual condition until the light-emitting diode 11 is adjusted to be bright.
It should be noted that the resistance of the sliding varistor can be maximized before the conductor is turned on and off, thereby preventing the light emitting diode 11 from being damaged by an excessive starting current when the light emitting diode is turned on.
Optionally, the electrical fault measurement device further comprises a buzzer 5, the buzzer 5 being connected in series with the light emitting diode 11.
In the above embodiment, the sound emitted by the buzzer 5 can play a role in reminding, so that the on-off condition of the conductor and the working condition of the power supply to be detected can be conveniently and rapidly judged, and the working efficiency is further improved.
It can be easily understood that under the long-time operation, the maintenance worker can have the condition of visual fatigue, and the sound emitted by the buzzer 5 can play a role in reminding, so that the maintenance worker can quickly judge the on-off condition of the conductor and the working condition of the tested power supply.
Alternatively, two through holes 100 are provided on the outer wall of the housing 6, the light emitting diode 11 is disposed in one through hole 100, and the single-pole double-throw switch 12 is disposed in the other through hole 100.
In the above embodiment, the through hole 100 facilitates adjustment of the single pole double throw switch 12 and observation of the light emission of the light emitting diode 11.
It should be noted that the light emitting diode 11 is mounted in the through hole 100 in the housing 6, thereby facilitating the attachment and detachment of the light emitting diode 11 in the event of a failure.
Illustratively, the single-pole valve of the single-pole double-throw switch 12 is disposed out of the through-hole 100.
Optionally, the housing 6 is a square structural member.
In the above embodiment, the housing 6 is a square structure member to facilitate the placement of the electrical fault measuring device.
Optionally, two clamping rings 61 are arranged on the housing 6 at intervals, and a through groove 611 is arranged in each clamping ring 61.
In the above embodiment, the through groove 611 in the snap ring 61 facilitates fixing of the two positive and negative measuring electrodes 21 and 22 in the non-operating state.
Illustratively, when the electrical fault measuring device is in a non-working state, the positive measuring electrode 21 and the negative measuring electrode 22 are fixed on the housing 6 through the snap ring 61, and when the electrical fault measuring device is in a working state, the positive measuring electrode 21 and the negative measuring electrode 22 are taken off from the snap ring 61 for use.
Illustratively, two snap rings 61 are respectively disposed on the side walls on the left and right sides of the housing 6.
Optionally, a rubber ring 612 is disposed on an inner wall of each through groove 611.
In the above embodiment, the elastic structure of the rubber ring 612 facilitates the fixing of the positive and negative measuring electrodes 21 and 22 on the one hand, and prevents the friction between the positive and negative measuring electrodes 21 and 22 and the snap ring 61 from being damaged on the other hand.
Optionally, the rubber ring 612 is a silicone rubber ring.
In the above embodiment, the rubber ring 612 is a silicone rubber ring for insulating the positive measuring electrode 21 and the negative measuring electrode 22.
Optionally, both the positive measurement electrode 21 and the negative measurement electrode 22 are electrode clamps.
In the above embodiment, the positive measuring electrode 21 and the negative measuring electrode 22 are both electrode clamps to facilitate the connection of the positive measuring electrode 21 and the negative measuring electrode 22 with the conductor to be measured or the power supply to be measured.
Optionally, two handles 62 are provided on the housing 6, the two handles 62 being spaced apart from each other.
In the above embodiment, the handle 62 is easy to hold by a human power.
Illustratively, when it is desired to move the electrical fault measurement device, the movement of the electrical fault measurement device is accomplished by manually grasping the handle 62.
Illustratively, two handles 62 are spaced apart from each other at the top end of the housing 6.
Optionally, the housing 6 is an insulator.
In the above embodiment, the housing 6 is an insulating member, so that the electrical fault measurement device is conveniently insulated, and potential safety hazards caused by the electrical conduction of the electrical fault measurement device are avoided.
The following briefly introduces a method for using a measuring device provided by the embodiment of the present invention:
when the on-off condition of the conductor needs to be measured, the positive measuring electrode 21 and the negative measuring electrode 22 are respectively connected with two ends of the conductor, then the single-pole valve in the single-pole double-throw switch 12 is connected with the first terminal 122, and the power supply 13 is connected with the light-emitting diode 11 in series. If the power supply 13, the light-emitting diode 11 and the conductor form a closed loop, the light-emitting diode 11 is bright, otherwise, the light-emitting diode 11 is not bright, and therefore the on-off condition of the conductor is judged according to the light-emitting condition of the light-emitting diode 11.
When the working condition of the power supply to be measured needs to be measured, the positive measuring electrode 21 is connected with the positive electrode of the power supply to be measured, the negative measuring electrode 22 is connected with the negative electrode of the power supply to be measured, the single-pole valve in the single-pole double-throw switch 12 is arranged in the second terminal 123, if a closed loop is formed between the power supply to be measured and the light-emitting diode 11, the light-emitting diode 11 is bright, otherwise, the light-emitting diode 11 is not bright, and therefore the working condition of the power supply to be measured is judged according to the light-emitting condition of the light-emitting.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. An electrical fault measuring device, characterized in that it comprises a detection module (1), a positive measuring electrode (21), a negative measuring electrode (22) and a housing (6);
the detection module (1) is arranged inside the shell (6), the positive measuring electrode (21) and the negative measuring electrode (22) are both arranged outside the shell (6), and the positive measuring electrode (21) and the negative measuring electrode (22) are respectively and electrically connected with the detection module (1) through respective wires;
the detection module (1) comprises a light-emitting diode (11), a single-pole double-throw switch (12), a power supply (13), a capacitor (3) and a resistor (4), the negative measurement electrode (22) is connected with the negative pole of the light-emitting diode (11), the positive pole of the light-emitting diode (11) is connected with the common terminal (121) of the single-pole double-throw switch (12), the first terminal (122) of the single-pole double-throw switch (12) is connected with the positive pole of the power supply (13), the negative pole of the power supply (13) is connected with the positive measurement electrode (21), and the second terminal (123) of the single-pole double-throw switch (12) is connected with the positive measurement electrode (21);
the capacitor (3) is connected in series between the common terminal (121) of the single-pole double-throw switch (12) and the anode of the light emitting diode (11), and the resistor (4) and the capacitor (3) are connected in parallel.
2. Electrical fault measuring device according to claim 1, characterized in that the resistor (4) is a sliding resistor.
3. Electrical fault measuring device according to claim 1, characterized in that it further comprises a buzzer (5), said buzzer (5) being connected in series with said light emitting diode (11).
4. Electrical fault measuring device according to claim 1, characterized in that two through holes (100) are provided on the outer wall of the housing (6), the light emitting diode (11) being provided in one of the through holes (100) and the single pole double throw switch (12) being provided in the other through hole (100).
5. Electrical fault measuring device according to claim 1, characterized in that two clamping rings (61) are provided on the housing (6) in a spaced arrangement, a through slot (611) being provided in each clamping ring (61).
6. Electrical fault measuring device according to claim 5, characterized in that a rubber ring (612) is provided on the inner wall of each through slot (611).
7. Electrical fault measuring device according to any of claims 1-6, characterized in that the housing (6) is a square structure.
8. Electrical fault measuring device according to any of claims 1-6, characterized in that the positive measuring electrode (21) and the negative measuring electrode (22) are both electrode clamps.
9. Electrical fault measuring device according to any of claims 1-6, characterized in that two handles (62) are provided on the housing (6), the two handles (62) being arranged at a distance from each other.
10. Electrical fault measuring device according to any of claims 1-6, characterized in that the housing (6) is an insulating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428786.1U CN211235983U (en) | 2019-08-29 | 2019-08-29 | Electrical fault measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428786.1U CN211235983U (en) | 2019-08-29 | 2019-08-29 | Electrical fault measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211235983U true CN211235983U (en) | 2020-08-11 |
Family
ID=71916807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921428786.1U Active CN211235983U (en) | 2019-08-29 | 2019-08-29 | Electrical fault measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211235983U (en) |
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2019
- 2019-08-29 CN CN201921428786.1U patent/CN211235983U/en active Active
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