KR20110012238A - Probe - Google Patents

Abstract

PURPOSE: A sensing device for measuring a load is provided to facilitate installation, release, or exchange on an electric pole. CONSTITUTION: A lower bracket(110) has a groove for inserting an electric wire in the center thereof. One end of an upper bracket(120) is hinge-coupled with one side of the lower bracket to pressurizes the wire inserted into the groove. A screw pin(130) is installed on the side of the lower bracket and measures the voltage and current by contacting with the wire inserted into the groove. A hooking unit(140) is protruded downward and is combined with the other side of the upper bracket. An engaging unit(150) is installed on the other side of the lower bracket. The upper bracket is fixed to the lower bracket with the hooking unit by an elastic force.

Description

Sensor for Load Measurement {PROBE}

The present invention relates to a sensor for load measurement, and more particularly, to a sensor capable of simply fastening an upper bracket and a lower bracket in a one-touch manner and measuring voltage and current in a load sensing system.

In order to supply electricity to consumers, such as general households, a plurality of poles are built, and pole pole transformers are installed in the poles. These column transformers are equipped with a load measuring system for measuring the load.

1 is a diagram showing the overall configuration of the load monitoring system of the column transformer. The load monitoring system includes a transformer 103, a load monitoring system 104, and a load measuring probe 100. This will be described below.

First, a primary side wire 102 through which electric power is transmitted from a substation passes through the top of the pole, and a predetermined wire is branched from the primary side wire 102 so that the primary side voltage is input to the transformer 103. . The primary voltage input to the transformer 103 is reduced in voltage by a decompression circuit in the transformer to generate a secondary voltage, and is transmitted to the customer by the secondary wire 105.

Since the depressurization process is performed at a considerable high pressure, there is a large amount of change in the amount of current and a large amount of heat is generated during the decompression, so that the transformer frequently suffers from the heat. If a failure occurs in the transformer, the supply of electricity to hundreds or thousands of households is cut off, which causes a lot of inconvenience to the general household.

Therefore, in order to solve this problem, there is a need for a device for monitoring in real time the information of the secondary wire 105 flowing from the transformer 103 to the customer. That is, there is a need for a load monitoring system 104 capable of monitoring in real time the voltage and current in the secondary side wire 105, the internal temperature of the system body and the external temperature of the column transformer.

In other words, by transmitting the load state such as the current and voltage of the transformer 103 installed on the pole 101 in real time to the distribution control room of the central control unit to take a preventive action to improve the stability and quality of the power through wireless communication. .

The load monitoring system 104 monitors in real time the voltage and current in the secondary side wire 105, the system body internal temperature, and the external temperature of the column transformer 103. The load monitoring system 104 is installed adjacent to the columnar transformer 103 to measure and data the voltage and current flowing to the secondary side wire 105 and wirelessly transmit the data to each central control room in real time.

The load monitoring system 104 for this purpose is a phase current detection means for detecting a current flowing in the secondary wire of the column transformer 103, phase voltage detection means for detecting the voltage of each phase induced in the secondary coil of the column transformer; And an internal temperature detecting means for detecting an internal temperature of the system main body, an external temperature detecting means for detecting an external temperature of the columnar transformer, and components for digitizing the detected signal and transferring it to a central control room.

In this case, the detection means is specifically achieved by the detector 100 as shown in FIG. The current and voltage are measured while the secondary wire is inserted into the groove of the detector. However, in the related art, the structure for fitting the wires to the detector is complicated, which makes it difficult to install on a pole. Therefore, the development of a technology that can fasten the wire with a simple structure is required.

The technical problem to be solved by the present invention is to provide a detector that can be simply fastened to the upper bracket and the lower bracket in a one-touch manner, and can measure the voltage and current in the load sensing system.

According to an aspect of the present invention, there is provided a detector, comprising: a lower bracket having a groove into which a wire is inserted in a center of a detector for measuring voltage and current in a columnar transformer load monitoring system; An upper bracket having one end hinged to one side of the lower bracket to press the electric wire inserted into the groove; A screw pin installed at a side of the lower bracket and measuring voltage and current by contacting a wire inserted into the groove; A catching portion protruding downward and coupled to the other end of the upper bracket; It is installed on the other end of the lower bracket, the biting portion for fixing the upper bracket to the lower bracket by biting the engaging portion by the elastic force, characterized in that it comprises a.

In the detector, a locking jaw protruding to both sides of the lower end is formed, and the locking portion is kept closed by elastic force, but is opened to both sides by the entry pressure of the locking unit, and the locking groove is caught. It is formed, it is preferable that the opposite side of the locking groove is provided with an opening handle that can be opened by opening the bite, it is preferable to perform the fastening of the upper bracket and the lower bracket simply in a one-touch manner.

On the other hand, another detector of the present invention, a detector for measuring the voltage and current in the columnar transformer load monitoring system, the lower bracket having a groove is inserted into the center; An upper bracket having one end hinged to one side of the lower bracket to press the electric wire inserted into the groove; A screw pin installed at a side of the lower bracket and measuring voltage and current by contacting a wire inserted into the groove; A catch formed to protrude in an outward direction on the other end side of the lower bracket; It is installed on the other end side of the upper bracket, the fixing portion for fixing the upper bracket to the lower bracket by being caught by the latch by the elastic force.

The fixing unit may include a fixing frame hinged to include an elastic body on the other end side of the upper bracket; A latching jaw which is maintained to be in close contact with the side surface of the upper bracket by the elastic force of the elastic body and is caught by the latch at one end of the fixing frame; It is formed on the other end of the fixed frame, by moving the locking step outwards to open the handle to open from the latch; characterized in that it comprises a.

The lower frame may further include a cover for opening and closing the locking jaw while moving in the vertical direction while the locking jaw is caught by the latch.

The sensor according to the present invention can be combined with the upper bracket and the lower bracket in a one-touch manner, and can be combined and released, so the installation and release or replacement work on the pole is very easy and the working time is shortened.

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

≪ Example 1 >

The detector 100 according to the present exemplary embodiment includes a lower bracket 110, an upper bracket 120, a screw pin 130, a catching part 140, and a biting part 150.

First, as shown in FIG. 2, the lower bracket 110 is formed by recessing a groove 112 into which a wire can be inserted in the center thereof in a thickness direction. A screw pin insertion portion is formed at a side of the lower bracket 110. 111 is formed. The screw pin insertion hole 111 is formed with a screw pin insertion hole to allow the screw pin 130 to contact the wire inserted into the groove 112. The screw pin 130 is in contact with the wire across the groove 112 in the state in which the screw pin 130 is inserted into the screw pin insertion hole. In this way, the voltage or current of the wire is measured in contact with the wire. The screw pin insertion hole is preferably formed with a screw surface so that the insertion depth of the screw pin 130 can be finely adjusted.

And the upper bracket 120 is a component for pressing and fixing the wire inserted into the groove 112. As shown in FIG. 2, the upper bracket 120 has a structure in which one end is hinged to one side of the lower bracket 110, and is opened and closed while pivoting about the upper bracket 120.

On the other hand, the other end opposite to the hinge of the upper bracket 120 protrudes in the downward direction to form a locking portion 140. The engaging portion 140 is installed on the other end side or bottom surface of the upper bracket 120, and serves to fix the other end of the upper bracket 120 to the lower bracket 110. To this end, as illustrated in FIGS. 2 and 3, the engaging portion 140 has a locking step 142 protruding from the left and right sides thereof. The locking jaw 142 is caught by the bite portion 150 to be described later so that the locking portion 140 and the upper bracket 120 is coupled to the lower bracket 110.

Next, the biting part 150 is installed at a position corresponding to the locking part 140 at the other end of the lower bracket 110. The gripping portion 150 is a component that fixes the upper bracket 120 to the lower bracket 110 by biting the locking portion 140 by the elastic force. Since the stitching part 150 bites and fixes the latching part 140 by an existing elastic force, the upper bracket (the upper bracket) is pushed by the one-touch operation to push the locking part 140 in the direction of the biting part 150 once. Fixing the 120 to the lower bracket 110 is completed.

For this purpose, the engagement portion 150 according to the present exemplary embodiment includes a central hinge portion 156, a locking groove 152, and an opening handle 154, as shown in FIG. 3. First, the central hinge portion 156, the engaging groove 152 is formed at one end, hinged two left and right stitches formed with an open handle 154 at the other end, including an elastic body, for example a spring in the hinge Combine. Accordingly, the two left and right engagement portions maintain the state in which the engaging grooves 152 are in contact with each other by the elastic force. When a force exceeding an elastic force is applied to the opening handle 154, the locking grooves 152 may be separated from each other and the locking portions 140 may be pulled out.

In the present embodiment, as shown in Figure 3, the locking portion 140 is formed in the center of the pointed pointed to the arrow shape, and the locking portion 150 has a slanted inclined to the center portion, the locking portion When the 140 enters the biting part 150 direction, the locking grooves 152 are opened to both sides while sliding each other, and the locking part 140 enters the biting part 150 and enters a predetermined depth or more. In this case, the locking step 142 is caught in the locking groove 152 to be out of the situation.

However, when the locking groove 152 is opened beyond the width of the locking jaw 142 by pressing the opening handle 154, the locking portion 140 may freely exit. Therefore, the locking portion 140 can be simply fastened to the bite portion 150 by one operation to push downward.

In addition, the cover 160 may be further provided on the front surface of the bite part 150 to protect the bite part 150 and the catching part 140 which is biteed by the bite part 150.

≪ Example 2 >

The detector 200 according to the present embodiment includes a lower bracket 210, an upper bracket 220, a screw pin 230, a latch 250, and a fixing part 240. In the detector 200 according to the present embodiment, the lower bracket 210, the upper bracket 220, and the screw pin 230 are substantially the same as those of the above-described first embodiment, and thus, the latch bracket 250 will not be repeated. ) And the fixing part 240 will be described in detail.

First, as shown in FIG. 4, the latch 240 is protruded outward from the other end side opposite to the hinge of the lower bracket 210. The upper side of the latch 250 is formed in the inclined surface so that the fixing portion 240 can slide, the lower side is formed with a first locking jaw so that the fixing portion 240 can be caught. Therefore, the fixing part 240 is fixed to the first locking jaw while descending down the slope.

Next, the fixing part 240 is installed on the other end side of the upper bracket 220, as shown in FIG. The fixing part 240 is a component for fixing the upper bracket 220 to the lower bracket 210 by being caught by the latch 250 by an elastic force. To this end, the fixing part 240 is configured to include a fixing frame, a second locking step 246 and the opening handle 242. First, the fixing frame is a component coupled to the hinge 244 including an elastic body on the side of the upper bracket 220, and the second locking step 246 is pressed toward the lower bracket 210 by the elastic force of the elastic body. It has a structure. The second locking jaw 246 is formed at the lower end of the fixing frame, and has a structure for engaging with the first locking jaw of the latch 250.

And the opening handle 242 is formed in the opposite direction of the second locking jaw 246, pressing the opening handle 242 more than the elastic force to lift the second locking jaw 246 to lift from the first locking jaw It will come out, and the upper bracket 220 is to be opened. As such, the sensor 200 according to the present exemplary embodiment has a structure capable of fixing and opening the upper bracket 220 to the lower bracket 210 in a one-touch manner by elastic force.

In addition, as illustrated in FIG. 4, the lower bracket 210 has the second latching jaw 246 moving upward and downward in a state of being caught by the latch 250 and the second latching jaw 250 and the second locking jaw. It is preferable that the cover 260 which can open and close the part 246 is further provided. The cover 260 is installed to protect the latch 250 and the second latching jaw 246, and has a structure that can slide in the vertical direction.

1 is a conceptual diagram illustrating a configuration of a load monitoring system of a column transformer.

2 is a perspective view showing the structure of a sensor according to an embodiment of the present invention.

3 is a side view illustrating a coupled state of a sensor according to an embodiment of the present invention.

4 is a side view showing a group of sensors according to another embodiment of the present invention.

Claims (5)

In the detector for measuring the voltage and current in the columnar transformer load monitoring system, A lower bracket having a groove into which a wire is inserted; An upper bracket having one end hinged to one side of the lower bracket to press the electric wire inserted into the groove; A screw pin installed at a side of the lower bracket and measuring voltage and current by contacting a wire inserted into the groove; A catching portion protruding downward and coupled to the other end of the upper bracket; And a biting part installed at the other end of the lower bracket and fixing the upper bracket to the lower bracket by biting the locking part by elastic force. The method of claim 1, The locking portion is formed with a locking projection protruding to both sides of the lower end, While maintaining the closed state by the elastic force in the bite portion is opened to both sides by the entry pressure of the locking portion, the locking groove is formed to catch the locking jaw, The opposite side of the engaging groove of the gripping portion is a detector, characterized in that the opening handle which can be opened by opening the gripping portion. In the detector for measuring the voltage and current in the columnar transformer load monitoring system, A lower bracket having a groove into which a wire is inserted; An upper bracket having one end hinged to one side of the lower bracket to press the electric wire inserted into the groove; A screw pin installed at a side of the lower bracket and measuring voltage and current by contacting a wire inserted into the groove; A catch formed to protrude in an outward direction on the other end side of the lower bracket; And a fixing part installed at the other end side of the upper bracket and fixed to the lower bracket by being caught by the latch by an elastic force. The method of claim 3, wherein the fixing unit, A fixing frame hinged to include an elastic body on the other end side of the upper bracket; A latching jaw which is maintained to be in close contact with the side surface of the upper bracket by the elastic force of the elastic body and is caught by the latch at one end of the fixing frame; And an opening handle which is formed at the other end of the fixing frame and moves the locking step outward to open from the latch. The method of claim 4, wherein the lower frame, And a cover for opening and closing the locking jaw while moving in the vertical direction while the locking jaw is caught by the latch.

Images