KR20240012775A - Fastening control device for electrical equipment - Google Patents

Abstract

The present invention is a fastening operation device for electrical equipment, and more specifically, a body part, a power input part extending from the body part and rotatably coupled to the power body to transmit rotational force to the body part, and a power input part on the opposite side of the power input part. For electrical equipment that includes a power transmission unit that is disposed and rotatably coupled to the driven body by receiving rotational force from the body, and an electromagnetic detector that is built into the body and detects the current flow due to contact between the driven body and the power transmission unit. A fastening operation device is provided.

Description

Fastening control device for electrical equipment {FASTENING CONTROL DEVICE FOR ELECTRICAL EQUIPMENT}

The present invention relates to a fastening operation device for electrical equipment, and more specifically, to a fastening operation device for electrical equipment to prevent safety accidents by checking leaked current in advance when opening electrical equipment.

Generally, power is transmitted from a power plant to a substation through a transmission line using a transmission tower, goes through several stages of transformation, and is then supplied to general customers (homes) along the distribution line of the electric pole.

Power cables installed underground to supply power to houses, shops, and buildings are connected to a plurality of branch cables inside electrical equipment such as switches, transformers, and low-voltage junction boxes, and each branch cable carries a plurality of power Electricity is supplied to each demand source.

Among electrical equipment, a low-voltage junction box is a small structure for branch connection, inspection, and other maintenance work on low-voltage power cables that distribute low-voltage power to each consumer.

The low-pressure junction box consists of a body buried underground and a cover fixed to the top of the body, and the cover is operated with a wrench tool so that it is fixed and separated from the body by a plurality of bolts.

When a worker is located close to the cover of a low-voltage junction box or operates a fastening tool with a wrench, leakage current generated from the electric cable inside the low-voltage junction box is transmitted directly or indirectly to the human body.

Low-voltage junction boxes as well as electrical equipment installed underground expose workers located near the door to the risk of electric shock because the leakage current generated from the power cable is transmitted to the human body over the entire area of the door over the shortest distance.

Conventionally, electrical equipment is operated with a wrench tool to simply open and close through the tightening and loosening process of fastening members, but the absence of equipment to check for current leaked from power cables installed inside the electrical equipment requires workers to check for electrical leaks in advance. There was a problem that could not be confirmed.

Therefore, there is a need to improve fastening means for electrical equipment to prevent safety accidents by checking leaked current in advance when approaching to open electrical equipment such as switches, transformers, and low-voltage junction boxes.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2019-0141984 (published on December 26, 2019, title of invention: Hex wrench with adjustable size).

The present invention is intended to provide a fastening operation device for electrical equipment to prevent safety accidents by checking leaked current in advance when opening electric equipment.

In order to achieve the above technical problem, the present invention includes a body portion, a power input portion extending from the body portion, rotatably coupled to the power body, and transmitting a rotational force to the body portion, and disposed on the opposite side of the power input portion. A power transmission unit that receives rotational force from the body and is rotatably coupled to the driven body, and a power transmission unit built in the body and detecting a current flow due to contact between the driven body and the power transmission unit, comprising: Provided is a fastening operation device for electrical equipment, characterized in that:

In the present invention, the electromagnetic detector is disposed in the electromagnetic detector body built into the body part and the electromagnetic detector main body to detect the current flowing into the power transmission unit, and converts the generated current detection signal into an output value to be transmitted to the outside of the body part. It can be equipped with a detection unit that displays in .

In the present invention, the detector unit includes an electroscope sensor disposed at an end of the detector body, which detects the current flowing into the power transmission unit and generates a current detection signal, and is built into the detector body and detects the current flowing into the power transmission unit by the detector sensor. It may be provided with a control circuit unit that converts the generated current detection signal into an output value and a notification unit that is energized in the control circuit unit and displays the output value of the current detection signal received by the control circuit unit.

In the present invention, the notification unit includes a light emitting unit disposed on the detector body and emitting light to the outside of the body by a control signal from the control circuit, and a light emitting unit disposed on the detector body and emitting light to the outside of the body by a control signal from the control circuit. An acoustic unit that emits sound to the outside of the body may be provided.

In the present invention, the power transmission unit has a built-in magnetic material that maintains adsorption with the driven body, and the electrostatic sensor can be inserted and disposed in the magnetic material.

In the present invention, the body portion includes a base body extending in the longitudinal direction and a cover member that covers the base body from the top, and an opening through which a portion of the electroscope body is exposed is provided between the base body and the cover member. can be formed.

In the present invention, the electric detector body has a switch part that is energized with the control circuit part, and the switch part can be disposed in the opening and exposed on the base body.

In the present invention, the power body is an electric drill, and the power input unit may have a first coupling portion formed toward the inside to be rotatably coupled to the electric drill.

In the present invention, the driven body is a fastening member, and the power transmission part may be formed with a second coupling portion facing inward to be rotatably coupled to the fastening member.

The fastening operation device for electrical equipment according to the present invention can prevent safety accidents by checking leaked current in advance when approaching to open electric equipment.

In addition, the fastening operation device for electrical equipment can be operated to tighten or loosen the driven body in conjunction with the rotational force generated from the power body, making it easy to open and close the electrical equipment, thereby improving work efficiency.

In addition, the fastening operation device for electrical equipment can detect the flow of leakage current when in contact with a driven object and display it externally as light or sound, so that workers approaching to open and close electric equipment are aware of the presence of leakage current in advance. It has the effect of preventing safety accidents caused by electric shock.

1 is a perspective view showing a fastening operation device for electrical equipment according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing the cover member separated from the fastening operation device for electrical equipment according to an embodiment of the present invention.
Figure 3 is a plan view showing a fastening operation device for electrical equipment according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a fastening operation device for electrical equipment according to an embodiment of the present invention.
Figure 5 is a configuration diagram for explaining the current detection principle of the fastening operation device for electrical equipment according to an embodiment of the present invention.
6 and 7 are diagrams for explaining the operating principle of the fastening operation device for electrical equipment according to an embodiment of the present invention.
Figures 8 and 9 are diagrams showing application examples of a fastening operation device for electrical equipment according to an embodiment of the present invention.

A fastening operation device for electrical equipment according to an embodiment of the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is a perspective view showing a fastening operation device for electrical equipment according to an embodiment of the present invention, and Figure 2 is an exploded perspective view showing a cover member separated from the fastening operation device for electrical equipment according to an embodiment of the present invention. Figure 3 is a plan view showing a fastening operation device for electrical equipment according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing a fastening operation device for electrical equipment according to an embodiment of the present invention, and Figure 5 is an embodiment of the present invention. This is a configuration diagram to explain the current detection principle of the fastening operation device for electrical equipment according to . However, refer to the contents shown in FIGS. 8 and 9.

As shown in Figures 1 to 5, the fastening operation device 100 for electrical equipment according to the present invention includes a body part 110, a power input part 130, a power transmission part 150, and an electromagnetic detector 170. Includes.

The body portion 110 has an overall cylindrical shape and includes a base body 111 extending in the longitudinal direction and a cover member 113 that covers the base body 111 from the top.

The base body 111 has a receiving space 115 formed therein to accommodate the electromagnetic detector 170, and a fixing member 10 is provided in the coupling hole 111a to facilitate assembly with the power transmission unit 150. It is fastened in a detachable manner.

The base body 111 has a seating surface 111b formed along the longitudinal direction so that the cover member 113 can be detachably coupled, and a plurality of coupling holes 111c are spaced apart in a certain pattern on the seating surface 111b. do.

The cover member 113 extends to a length relatively small compared to the shape of the seating surface 111b, and a coupling hole 113a is formed at a position corresponding to the plurality of coupling holes 111c to secure the fixing member 30. It is fastened in a detachable manner.

In the present invention, the cover member 113 is implemented in a separable coupling relationship with the base body 111 through the fixing member 30, but is not limited to this, and any one of the base body 111 and the cover member 113 It can be replaced with a detachable or sliding configuration through the coupling protrusion formed on one and the coupling groove formed on the other.

The power input unit 130 has a cylindrical shape that extends from the body 110 or can be separated and combined, and the power body 90 is rotatably coupled to the end to transmit rotational force to the body 110.

The power input unit 130 is formed with a first coupling portion 131 having a depth toward the inside so as to be rotatably coupled to the power body 90, and is axially coupled by the connecting member of the power body 90, and the first coupling A surface 133 is formed and comes into contact with the end of the power body 90.

The power transmission unit 150 extends from the body 110 or has a cylindrical shape that can be separated and combined, and is disposed on the opposite side of the power input unit 130 based on the body 110.

The power transmission unit 150 has a second coupling unit 151 formed toward the inside to be rotatably coupled to the driven body 50 using the rotational force transmitted from the body unit 110 linked with the power input unit 130. And a second engaging surface 153 is formed that contacts the receiving groove (not shown) of the electrical equipment 70.

The power transmission unit 150 has rotational force in both directions (clockwise and counterclockwise) to tighten and loosen the driven body 50 due to interlocking with the power input unit 130 and the body unit 110.

The fastening operation device 100 for electrical equipment has durability to prevent damage to the equipment when the power input unit 130 is coupled and operated with the power body 90, and the power transmission unit 150 is connected to the driven body 50. It may be made of a metal type material to have durability to prevent damage to the equipment during coupling and operation.

The detector 170 is built into the body 110 and includes the detector body 171, the detector unit, and the battery 177 to detect the flow of current due to contact between the driven body 50 and the power transmission unit 150. Since the battery 177 corresponds to the prior art, description of its detailed configuration and operational relationship will be omitted.

The detection body 171 is built into the receiving space 115 formed in the base 111 of the body 110 and extends along the longitudinal direction of the body 110, and is formed as a power transmission unit in the base 111. It has an end portion (171a) whose width becomes narrower toward (150).

The detection unit is disposed in the detection body 171 to detect the current flowing into the power transmission unit 150, converts the generated current detection signal into an output value, and displays it on the outside of the body 110. (172) and a notification unit.

The electrostatic sensor 174 is disposed at the end 171a of the electrostatic body 171, detects the current flowing into the power transmission unit 150 from the driven body 50, generates a current detection signal, and then energizes the control circuit part. Forward to (172).

The control circuit unit 172 is built into the detection body 171, converts the current detection signal generated by the detection sensor 174 into an output value, and then controls the energized notification unit using the control signal.

The notification unit is provided with a light emitting unit 175 and an audio unit 176 to display the output value of the current detection signal received by the control circuit unit 172 by energizing the control circuit unit 172 to the outside of the body unit 110.

The light emitting unit 175 is disposed on the detector body 171 and emits light to the outside of the body unit 110 in response to a control signal from the energized control circuit unit 172, and has various colors to distinguish whether there is leakage current. It can be expressed through light.

The sound unit 176 is disposed on the electromagnetic detector body 171 and radiates sound to the outside of the body unit 110 by a control signal from the energized control circuit unit 172, and has a variety of sound ranges that can distinguish whether or not there is a leakage current. It can be expressed through sound.

In the configuration of the fastening operation device 100 for electrical equipment according to the present invention described above, the body portion 110 of the fastening operation device 100 for electrical equipment includes the seating surface 111b of the base 111 and the cover member. Due to the difference in the lengths of (113), there is an opening (100a) between which a part of the electroscope body (171) is exposed.

The detection body 171 has a switch unit 173 that is connected to the control circuit unit 172, and the switch unit 173 is disposed in the opening 100a and exposed on the base body 111, and the switch unit 173 The light emitting part 175 is built in to enable the expression of leakage current.

The switch unit 173 of the electric detector body 171 may be made of an insulating material of thermoplastic elastomer (TPE) with insulating properties for easy handling at work sites related to the electrical equipment 70.

Thermoplastic elastomers have the properties of both rubber and plastic, but are harder than rubber and have greater resilience than plastic, providing stability to workers against electric shock when power is input between the worker and the switch unit 173. At the same time, it has the effect of being convenient to handle.

The switch unit 173 can be made of an insulating coating method by using insulating materials such as silicone, rubber, and synthetic resin. Insulating materials such as silicone, rubber, and synthetic resin are poured with a solvent using a mold to insert the switch. It can be manufactured by casting method.

The material of the switch unit 173 can be made of silicone, rubber, synthetic resin, etc. for insulation, and is not limited to a specific material, but self-deforms while providing stability against electric shock when in contact with a worker for power input. If it is made of a material with excellent prevention properties, it can be implemented in various ways.

In the fastening operation device 100 for electrical equipment, the power body 90 coupled to the power input unit 130 may be an electric drill, and the first coupling part 131 of the power input unit 130 is a square box type of electric drill. The connecting members are rotatably coupled so that the power body 90 and the power input unit 130 can be interlocked using rotational force.

In the fastening operation device 100 for electrical equipment, the driven body 50 coupled to the power transmission unit 150 may be a bolt-type fastening member, and is fastened to the second coupling portion 151 of the power transmission unit 150. When the members are combined, the tightening and loosening of the fastening member can be implemented using the rotational force transmitted according to the interlocking of the power input unit 130 and the body portion 110.

The power transmission unit 150 includes a driven body 50 and a magnetic material 155 that maintains adsorption in the second coupling unit 151, and an electrostatic sensor 174 provided at the end 171a of the electrostatic body 171. ) is inserted through the center of the magnetic material 155 toward the second coupling portion 151 of the power transmission unit 150.

The fastening operation device 100 for electrical equipment has a power input unit 130, a body unit 110, and a power transmission unit 150 on the same line in the direction from the power body 90, which is the power transmission process, to the driven body 50. is placed in

The fastening operation device 100 for electrical equipment is connected to the power body 90 coupled to the first coupling portion 131 of the power input unit 130 and the second coupling portion 151 of the power transmission unit 150. After the initial coupling relationship of the fuselage 50 is based on linear movement, it is implemented to be rotatable.

Hereinafter, an application example according to the operating principle of the fastening operation device for electrical equipment according to the present invention will be described with reference to FIGS. 1 to 5 described above.

Figures 6 and 7 are diagrams for explaining the operating principle of the fastening operation device for electrical equipment according to an embodiment of the present invention, and Figures 8 and 9 are diagrams showing the application of the fastening operation device for electrical equipment according to an embodiment of the present invention. This is a drawing showing an example. However, based on FIGS. 8 and 9, the detailed description will be made by assuming that the power body is an electric drill and the driven body is an example of a pentagonal bolt.

As shown in FIGS. 6 to 9, the fastening operation device 100 for electrical equipment checks in advance for leaked current when approaching to open electrical equipment 70 such as ground equipment and low-voltage junction boxes to prevent safety accidents. It includes a body unit 110, a power input unit 130, a power transmission unit 150, and an electric detector unit 170 to prevent.

The body portion 110 has an overall cylindrical shape and includes a base body 111 extending in the longitudinal direction and a cover member 113 that covers the base body 111 from the top.

The power input unit 130 has a cylindrical shape that extends from the body 110 or can be separated and combined, and the power body 90 is rotatably coupled to the end to transmit rotational force to the body 110.

The power input unit 130 may be axially coupled to the power body 90 by a connecting member of the power body 90 by forming a first coupling portion 131 having a depth toward the inside so as to be rotatably coupled to the power body 90.

The power transmission unit 150 has a second coupling unit 151 formed toward the inside to be rotatably coupled to the driven body 50 using the rotational force transmitted from the body unit 110 linked with the power input unit 130. do.

The detector 170 is built into the body 110 and includes the detector body 171, the detector unit, and the battery 177 to detect the flow of current due to contact between the driven body 50 and the power transmission unit 150. is provided.

The detection body 171 is built into the receiving space 115 formed in the base 111 of the body 110 and extends along the longitudinal direction of the body 110, and is formed as a power transmission unit in the base 111. It has an end portion (171a) whose width becomes narrower toward (150).

The detection unit is disposed in the detection body 171 to detect the current flowing into the power transmission unit 150, converts the generated current detection signal into an output value, and displays it on the outside of the body 110. (172) and a notification unit.

The fastening operation device 100 for electrical equipment is approached on the same line as the pentagonal bolt of the electrical equipment 70 when the opening operation of the electrical equipment 70, such as ground equipment and low-voltage connection boxes installed on the ground, is performed. Prepare to remove the pentagonal bolt from (70).

The fastening operation device 100 for electrical equipment is configured such that the pentagonal bolt of the electric equipment 70 is coupled to the power transmission unit 150 while the electric drill is coupled to the power input unit 130, and the electric drill and the power input unit 130 are connected to each other. , the body portion 110 and the power transmission portion 150 are arranged on the same line.

The fastening operation device 100 for electrical equipment is turned on by the operator pressing the switch unit 173, and the power signal due to the operation of the switch unit 173 is transmitted to the control circuit unit 172 to activate the detector unit 170. Ready for operation.

The fastening operation device 100 for electrical equipment detects leakage current of the detector 170 through the operation of the detector 174 by combining the pentagonal bolt and the power transmission unit 150 before generating rotational force through an electric drill. You can proceed.

For example, the fastening operation device 100 for electrical equipment starts operation by pressing the switch unit 173, and the control circuit unit 172, which receives the power signal from the switch unit 173, controls the light emitting unit 175. By transmitting the signal, green color is displayed on the switch unit 173.

When a leakage current is detected through the combination of the power transmission unit 150 and the pentagonal bolt, the fastening operation device 100 for electrical equipment transmits the current detection signal detected by the electric shock sensor to the control circuit unit 172. ) is transmitted as a control signal to the light emitting unit 175 and the sound unit 176.

The fastening operation device 100 for electrical equipment changes the color of the light emitting unit 175 and the energized switch unit 173 to red according to the control signal from the control circuit unit 172, and various sound ranges predetermined in the sound unit 176. sounds are expressed simultaneously.

The fastening operation device 100 for electrical equipment receives rotational force through the operation of an electric drill when leakage current is not detected when the power transmission unit 150 and the pentagonal bolt are coupled to the power input unit 130 and the body unit 110. and the power transmission unit 150 are linked to tighten and loosen the pentagonal bolts fastened to the electrical equipment 70, thereby completing the opening and closing work of the electrical equipment 70.

As a result, the fastening operation device 100 for electrical equipment is provided with a body part 110, a power input part 130, a power transmission part 150, a power transmission part 150, and an electromagnetic detector 170, thereby Safety accidents can be prevented by checking the leaked current in advance when approaching to open (70).

The fastening operation device 100 for electrical equipment has a first coupling part 131 formed in the power input unit 130 and a second coupling part 151 formed in the power transmission unit 150, so that the power body 90 Since the driven body 50 is manipulated to tighten or loosen in conjunction with the rotational force generated from, the electrical equipment 70 can be easily opened and closed, thereby improving work efficiency.

The detection unit 170 is provided with an detection body 171 and an detection unit, and detects the flow of current flowing into the power transmission unit 150 when the driven body 50 and the power transmission unit 150 come into contact with the power transmission unit 150. Since it can be expressed through light or sound, it has the effect of preventing safety accidents due to electric shock by making workers approaching to open and close the electrical equipment 70 recognize in advance whether there is leakage current.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

10, 30: fixing member 50: driven body
70: Electrical equipment 90: Power body
100: Fastening operation device for electrical equipment
100a: opening 110: body portion
111: base body 111a, 111c, 113a: coupling hole
111b: Seating surface 113: Cover member
115: accommodation space 130: power input unit
131: first coupling portion 133: first coupling surface
150: Power transmission part 151: Second coupling part
153: second coupling surface 155: magnetic material
170: Sword front unit 171: Sword front body
171a: End 172: Control circuit part
173: Switch unit 174: Detection sensor
175: light emitting part 176: sound part
177: battery

Claims (9)

body part;
a power input unit extending from the body and rotatably coupled to the power body to transmit rotational force to the body;
A power transmission unit disposed on the opposite side of the power input unit and rotatably coupled to the driven body by receiving rotational force from the body unit; and
an electromagnetic detector built into the body and detecting a current flow due to contact between the driven body and the power transmission unit;
A fastening operation device for electrical equipment comprising a.
According to claim 1,
The electromagnetic detector,
An electroscope body built into the body part; and
An detection unit disposed in the detection body to detect a current flowing into the power transmission unit, convert the generated current detection signal into an output value, and display it outside the body unit;
A fastening operation device for electrical equipment, characterized in that it has a.
According to claim 2,
The detection unit is,
An electrostatic sensor disposed at an end of the electrostatic detector body and generating a current detection signal by detecting a current flowing into the power transmission unit;
A control circuit unit built into the electrostatic detection body and converting the current detection signal generated by the electrostatic detection sensor into an output value; and
a notification unit that is energized in the control circuit unit and displays an output value of the current detection signal received by the control circuit unit;
A fastening operation device for electrical equipment, characterized in that it has a.
According to claim 3,
The notification unit,
A light emitting unit disposed on the detector body and emitting light to the outside of the body unit in response to a control signal from the control circuit unit; and
An acoustic unit disposed on the electroscope body and emitting sound to the outside of the body unit in response to a control signal from the control circuit unit;
A fastening operation device for electrical equipment, characterized in that it has a.
According to claim 3,
The power transmission unit has a built-in magnetic material that maintains adsorption with the driven body,
A fastening operation device for electrical equipment, characterized in that the electrostatic sensor is inserted and disposed in the magnetic material.
According to claim 2,
The body portion includes a base body extending in the longitudinal direction and a cover member covering the base body from the top,
A fastening operation device for electrical equipment, characterized in that an opening is formed between the base body and the cover member through which a portion of the electrostatic detection body is exposed.
According to claim 6,
The electromagnetic detector body has a switch portion that is electrically connected to the control circuit portion,
A fastening operation device for electrical equipment, characterized in that the switch portion is disposed in the opening and exposed on the base body.
According to claim 1,
The power body is an electric drill,
A fastening operation device for electrical equipment, characterized in that the power input unit has a first coupling portion formed toward the inside so as to be rotatably coupled to the electric drill.
According to claim 1,
The driven body is a fastening member,
A fastening operation device for electrical equipment, characterized in that the power transmission part is formed with a second coupling part toward the inside so as to be rotatably coupled to the fastening member.

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