WO2022191396A1 - 테스트 장치 - Google Patents
테스트 장치 Download PDFInfo
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- WO2022191396A1 WO2022191396A1 PCT/KR2022/000149 KR2022000149W WO2022191396A1 WO 2022191396 A1 WO2022191396 A1 WO 2022191396A1 KR 2022000149 W KR2022000149 W KR 2022000149W WO 2022191396 A1 WO2022191396 A1 WO 2022191396A1
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- coil
- test device
- energizing
- arm
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/15—Indicating the presence of current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
Definitions
- the present invention relates to a test apparatus, and more particularly, to a test apparatus having improved portability and operational reliability.
- the circuit breaker is connected to an external power source and a load to be energized, respectively, and refers to a device capable of allowing or blocking an energization state between the power source and the load.
- an abnormal current such as overcurrent flows into the circuit breaker from an external power source
- the circuit breaker performs a blocking operation (trip operation) to cut off the energized state between the external power source and the load.
- a circuit breaker includes various components. As the circuit breaker is activated, the component is activated and heat is generated. In addition, even when an abnormal current is applied from an external power source, excessive heat may be generated in each component of the circuit breaker.
- the circuit breaker is generally provided with a sensing device for measuring internal or external temperature.
- sensing device is also generally provided as an electrical device. Accordingly, as the circuit breaker continues to operate, there is a risk that the components of the sensing device may also be damaged.
- test apparatus 1000 according to the related art is shown.
- the test apparatus 1000 according to the related art includes a current supply unit 1100 for applying AC power, and a conductive wire member 1200 for transferring the supplied current to a busbar 1300 .
- the sensor device 1400 is coupled to the bus bar 1300 to receive AC power, and the operating state is checked using a magnetic field formed accordingly.
- the sensor body 1410 of the sensor device 1400 is seated on the bus bar 1300 and is coupled to the bus bar 1300 by a band 1420 formed of a conductive material.
- the alternating current applied from the current supply unit 1100 conducts the bus bar 1300 .
- a magnetic field is formed around the bus bar 1300 .
- the band 1420 is provided to penetrate the coil 1430 accommodated in the sensor body 1410 .
- the formed magnetic field is converted into electrical energy by the coil 1430 and supplied as power for operating the sensor device 1400 .
- the strength of the magnetic field is proportional to the magnitude of the supplied alternating current. Accordingly, in order to supply sufficient power to operate the sensor device 1400 , the capacity of the current supply unit 1100 must be increased. This causes an increase in physical size such as weight and volume of the current supply unit 1100 .
- Korean Patent Laid-Open Publication No. 10-2007-0119222 discloses a circuit breaker test device for a digitally reduced mosaic switchboard. Specifically, a circuit breaker test device capable of preventing an accident that may occur when the circuit breaker is actually operated during testing when there is an error in the connection between the control switch of the mosaic device and the relay switch of the corresponding circuit breaker is disclosed.
- the prior document discloses only the structure of the circuit diagram or concept stage for achieving the purpose, and does not provide a specific structure. That is, the prior literature only suggests a method for the stable operation of the test apparatus, and does not disclose contents related to the miniaturization of the test apparatus.
- Korean Patent Publication No. 10-2012-0043326 discloses a portable circuit breaker characteristic analysis device. Specifically, a circuit breaker characteristic analysis device capable of improving portability by embedding various components constituting the characteristic analysis device in a bag-shaped case is disclosed.
- the prior literature has a limitation in not disclosing a method for miniaturization and weight reduction of a circuit breaker characteristic analysis device. That is, the characteristic analysis apparatus according to the prior literature includes a display, various buttons and dials for applying a control signal, and the like. Therefore, apart from being portable, there is a limitation in that it is inconvenient to carry due to its size and weight.
- Patent Document 1 Korean Patent Publication No. 10-2007-0119222 (2007.12.20.)
- Patent Document 2 Korean Patent Publication No. 10-2012-0043326 (2012.05.04.)
- An object of the present invention is to provide a test apparatus having a structure capable of solving the above-described problems.
- an object of the present invention is to provide a test device having a structure capable of reliably inspecting whether a sensor device is abnormal.
- an object of the present invention is to provide a test device having a structure capable of reducing the size and weight of the product.
- Another object of the present invention is to provide a test device having a structure in which portability can be improved.
- an object of the present invention is to provide a test device having a structure in which work convenience can be improved.
- Another object of the present invention is to provide a test device having a structure that does not require a separate external power supply to perform a task of determining whether a sensor device is abnormal.
- a power supply for supplying a direct current; a control unit operably connected to the power supply unit to convert the supplied direct current into alternating current; a coil unit operably connected to the control unit to convert the energy of the alternating current into magnetic energy; and an energizing unit connected to the coil unit to be energized and configured to form a magnetic field using the alternating current.
- the coil unit of the test device may be wound around the energizing unit.
- a plurality of the coil units of the test apparatus may be provided, and the plurality of coil units may be wound on the current conducting unit at different positions.
- the conductive part of the test device the coil part is wound, the coil coupling part extending in one direction; an arm part continuous with the coil coupling part, forming a predetermined angle with the coil coupling part, and extending in another direction; and a energizing protrusion extending from one end in a direction in which the arm part extends to form a predetermined angle with the arm part.
- the coil coupling part, the arm part, and the energizing protrusion of the energizing part of the test apparatus may be formed of a ferromagnetic body.
- two of the arm parts of the test apparatus may be provided to face each other and spaced apart from each other in the one direction, and the two arm parts may be continuous with each end in a direction in which the coil coupling part extends.
- the two energized protrusions of the test device may be provided to be continuous with the two arm portions, respectively, and the two energized protrusions may extend toward each other.
- the energizing part of the test device may include a space part in which the sensor device is inserted, which is formed to be partially surrounded by the coil coupling part and the two arm parts.
- the control unit of the test apparatus may include: a control board converting the DC current into the AC current; a power lead connecting the control board and the power supply to be energized; and a coil wire connecting the control board and the coil unit to be energized.
- control unit of the test apparatus may include a switch having a portion exposed to the outside, connected to the control board, and receiving a control signal for operating the control board.
- the power supply unit of the test device may be provided with a rechargeable battery.
- test apparatus may include a housing having a space therein and accommodating the control unit, the coil unit, and the energizing unit.
- the housing of the test device may include: a body portion accommodating the control unit, the coil unit, and a part of the conducting unit; and an extension portion continuous with the body portion, accommodating the remaining portion of the energizing portion, and extending from the body portion.
- a plurality of the extension portions of the test device are provided, the plurality of extension portions are spaced apart from each other and disposed to face each other, and the housing includes a sensor insertion portion that is a space partially surrounded by the body portion and the plurality of extension portions.
- control unit may amplify the frequency of the AC current, and the conducting unit may form a magnetic field using the AC current having the frequency amplified.
- the test apparatus includes a coil unit.
- the coil unit is energably connected to the control unit to receive the converted alternating current.
- the coil unit converts the energy of the received alternating current into magnetic energy.
- the coil unit is energably connected to the energizing unit.
- the alternating current amplified at a high frequency by the control unit is transmitted to the energizing unit through the coil unit.
- the conducting part is formed of a ferromagnetic material, and forms a magnetic field using the received alternating current. Accordingly, the energy transfer rate of the alternating current may be further increased.
- the sensor device uses the formed magnetic field to generate power for actuation. As described above, since the energy transfer rate of the current is increased, the power can be formed to a size sufficient to operate the sensor device.
- the inspection for the abnormality of the sensor device may be reliably performed.
- the controller As the frequency of the AC current is amplified by the controller, a power source for applying a strong AC current may not be provided.
- the coil part is wound on the energizing part, and is connected and coupled to the energizing part so as to be energized.
- the power supply for applying a direct current to the control unit may be provided in the form of a battery.
- test apparatus may be miniaturized and lightweight, and portability may be improved.
- the test device is provided with a sensor insertion unit, which is a space into which the sensor device is inserted.
- the sensor coil of the sensor device When the sensor device is inserted into the sensor insertion unit, the sensor coil of the sensor device generates electric power using a magnetic field generated by the energizing unit. That is, only a process of inserting the sensor device into the test device may perform a test operation of the sensor device.
- the convenience of the operation for inspecting whether the sensor device is abnormal may be improved.
- the power supply unit may be provided in the form of a battery charged by an external power source. That is, the power supply unit may supply DC current to the control unit for a predetermined time without receiving power from an external power source.
- the test device since there is no need to provide a conducting wire member for connecting an external power source and the test device, the test device can be easily carried and operated.
- FIG. 1 is a perspective view illustrating a state in which a sensor is coupled to a test apparatus according to the related art.
- FIG. 2 is a side view (a) and a side cross-sectional view (b) illustrating a state in which a sensor is coupled to a test apparatus according to the prior art.
- FIG. 3 is a perspective view illustrating a test apparatus according to an embodiment of the present invention.
- Fig. 4 is a plan view showing the test apparatus of Fig. 3;
- Fig. 5 is a front view showing the test apparatus of Fig. 3;
- Fig. 6 is a cross-sectional view taken along line A-A showing the test apparatus of Fig. 3;
- FIG. 7 is a perspective view showing an internal configuration of the test apparatus of FIG. 3 .
- Fig. 8 is a plan view showing the internal configuration of the test apparatus of Fig. 3;
- Fig. 9 is a bottom view showing the internal configuration of the test apparatus of Fig. 3.
- Fig. 10 is a front view showing the internal configuration of the test apparatus of Fig. 3;
- Fig. 11 is a rear view showing the internal configuration of the test apparatus of Fig. 3;
- Fig. 12 is a left side view showing the internal configuration of the test apparatus of Fig. 3;
- Fig. 13 is a right side view showing the internal configuration of the test apparatus of Fig. 3;
- FIG. 14 is a perspective view illustrating a state in which a wireless sensor is coupled to the test device of FIG. 3 .
- 15 is a partially cut-away plan view illustrating a state in which a wireless sensor is coupled to the test device of FIG. 3 .
- 16 is a rear view illustrating a state in which a wireless sensor is coupled to the test device of FIG. 3 .
- 17 is a front cross-sectional view illustrating a state in which a wireless sensor is coupled to the test device of FIG. 3 .
- test apparatus 10 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- breaker used in the following description refers to any device that can be operated automatically or manually to connect an external power source and a load to be energized with each other or to cut the connection.
- the circuit breaker may be provided in the form of an air circuit breaker, a vacuum circuit breaker, a circuit breaker, and the like.
- the term "sensor device” used in the following description means any device capable of collecting or detecting information related to the state of any component constituting the circuit breaker.
- the sensor device may be configured to sense the temperature, pressure, humidity, vibration, etc. of the circuit breaker.
- test device used in the following description refers to any device capable of checking whether a sensor device is operating or not.
- conductive connection means that two or more components are connected to receive a current or an electrical control signal.
- the energizable connection may be formed in a wired manner by a conducting wire member or the like, or may be formed in a wireless manner such as Bluetooth or current induction by a magnetic field.
- the energizable connection may be formed by contacting the two or more components with each other.
- top”, bottom”, “front side”, “rear side”, “left” and “right” used in the following description will be understood with reference to the coordinate system shown in FIGS. 3 and 14 .
- test apparatus 10 according to an embodiment of the present invention is illustrated.
- the test device 10 may be coupled to a sensor device 20 to be described later to check whether the sensor device 20 operates.
- the test apparatus 10 may apply an alternating current of a higher frequency to the sensor apparatus 20 than the test apparatus 1000 according to the related art.
- test device 10 can reliably test whether the sensor device 20 operates while achieving size reduction and weight reduction.
- the test device 10 includes a housing 100 , a control unit 200 , a coil unit 300 , an energizing unit 400 , and a power supply unit 500 .
- the housing 100 forms the outer shape of the test device 10 .
- a space is formed inside the housing 100 to mount various components for operating the test device 10 .
- control unit 200 the coil unit 300 , the energizing unit 400 , and the power supply unit 500 may be mounted in the inner space of the housing 100 .
- the switch 220 of the control unit 200 may be exposed to the outside and pressed by the operator.
- the energizing protrusion 430 of the energizing portion 400 is also partially exposed to the outside, so that an alternating current can be applied to the coupled sensor device 20 .
- the housing 100 may be formed of an insulating material. This is to prevent the generated alternating current and arbitrary conduction with the sensor device 20 .
- the housing 100 may be formed of a high-rigidity and lightweight material. This is to reduce the overall volume and weight of the test device 10 .
- the housing 100 may be formed of an insulating material, such as a synthetic resin or a ceramic material.
- the housing 100 includes a body portion 110 , an extension portion 120 , and a sensor insertion portion 130 .
- the body part 110 forms a part of the housing 100 .
- the body portion 110 forms the front side of the housing 100 .
- a space is formed inside the body 110 , and various components constituting the test device 10 may be mounted therein.
- the control unit 200, the coil unit 300 and the energizing unit 400 are mounted inside the body unit 110 .
- One side of the body portion 110, the upper side in the illustrated embodiment is formed with a through hole.
- the switch 220 of the control unit 200 is coupled through the through hole.
- the switch 220 is coupled to the through hole and partially exposed to the outside. The operator may control whether the test apparatus 10 operates by pressing the exposed switch 220 .
- the inner space of the body 110 communicates with the inner space of the extension 120 .
- the energizing part 400 partially accommodated in the inner space of the body 110 may extend into the inner space of the extension 120 .
- the body portion 110 is provided in a polygonal columnar shape including a portion inclined upward toward the rear side and a portion extending flatly toward the rear side.
- the shape of the body portion 110 may be provided in any form capable of mounting various components constituting the test device 10 .
- An opening is formed in any one of the sides constituting the body portion 110, the right side in the illustrated embodiment.
- a conducting wire member (not shown) for applying power to the power supply unit 500 accommodated in the inner space of the body unit 110 may pass through the opening.
- the power supply unit 500 may be provided in the form of a battery.
- a port for charging the power supply unit 500 may be coupled to the opening.
- the body part 110 is continuous with the extension part 120 .
- the extension 120 forms another part of the housing 100 .
- the extension 120 forms the rear side of the housing 100 .
- the extension part 120 is continuous with the body part 110 and extends in a direction opposite to the body part 110 .
- the extension portion 120 extends from the rear side end of the body portion 110 to the rear side.
- a space is formed inside the extension part 120 .
- the arm 420 of the energizing unit 400 is mounted.
- a plurality of extension parts 120 may be provided.
- the plurality of extension parts 120 may be spaced apart from each other and disposed to face each other.
- a plurality of arm parts 420 may be mounted on each extension part 120 , respectively.
- two extension parts 120 are provided, respectively, located on the left and right sides of the rear of the body part 110 .
- the number of extension parts 120 may be changed according to the number of arm parts 420 .
- An opening may be formed on each side of the two extension parts 120 facing each other.
- the energizing protrusion 430 of the energizing portion 400 may be partially exposed in the opening.
- an alternating current may be applied to the sensor device 20 through the exposed portion of the energizing protrusion 430 .
- an alternating current may be applied to the internal coil of the sensor device 20 .
- the position of the opening may be changed according to the position of the sensor coil 22 of the sensor device 20 .
- the space formed between the two extension parts 120 may be defined as the sensor insertion part 130 .
- the sensor insertion unit 130 is a space in which the sensor device 20 coupled to the test device 10 is accommodated.
- the sensor device 20 inserted into the sensor insertion unit 130 may be operated by receiving an alternating current by the energizing unit 400 .
- the internal coil of the sensor device 20 may be operated by receiving an alternating current.
- the sensor insertion part 130 is partially surrounded by the body part 110 and the extension part 120 . Specifically, in the illustrated embodiment, the front side of the sensor insertion portion 130 is surrounded by the body portion (110). In addition, the left and right sides of the sensor insertion part 130 are surrounded by two extension parts 120 facing each other.
- the upper, lower and rear sides of the sensor insertion unit 130 are openly formed.
- the sensor device 20 may be accommodated in the sensor insertion unit 130 through any one or more directions of an upper side, a lower side, and a rear side.
- the sensor insertion unit 130 has a “U” shape in which left and right sides extend in the front-rear direction, and the front side is rounded to the outside (see FIG. 4 ).
- the shape of the sensor insertion part 130 may be changed according to the shapes of the body part 110 and the extension part 120 surrounding the sensor insertion part 130 .
- a single sensor device 20 is inserted into the sensor insertion unit 130 (see FIG. 14 ).
- a plurality of sensor devices 20 may be simultaneously inserted into the sensor insertion unit 130 .
- the width direction length of the sensor insertion unit 130 that is, the length in the left and right direction in the illustrated embodiment should be further increased.
- control unit 200 according to an embodiment of the present invention will be described in detail with reference to FIGS. 7 to 13 .
- the controller 200 converts the direct current applied from the power source 500 into an alternating current.
- the AC current converted by the control unit 200 is transmitted to the coil unit 300 and the energizing unit 400 , and is used as power to operate the sensor device 20 .
- the control unit 200 is accommodated in the inner space of the housing 100 . Specifically, the control unit 200 is accommodated in the inner space of the body portion (110). At this time, the switch 220 may be exposed to the outside of the body portion (110).
- the control unit 200 is located between the coil unit 300 or the energizing unit 400 and the power supply unit 500 .
- the front side of the control board 210 of the control unit 200 partially covers the upper side of the power supply unit 500 .
- the rear side of the control board 210 of the control unit 200 partially covers the upper side of the coil unit 300 and the conducting unit 400 .
- the control unit 200 is electrically connected to the power supply unit 500 .
- the current (ie, direct current) generated by the power supply unit 500 may be transmitted to the control unit 200 .
- the connection may be formed by the power conductor 231 of the conductor 230 .
- the control unit 200 is electrically connected to the coil unit 300 .
- the AC current converted by the control unit 200 may be transmitted to the coil unit 300 and the energizing unit 400 connected thereto to be energized.
- the connection may be formed by the coil conductor 231 of the conducting wire unit 230 .
- control unit 200 may be provided with a device for communication.
- the communication device may interwork with the sensor device 20 to receive a test result, and transmit it to an external server or the like.
- the communication device may be provided in a wireless form such as Bluetooth, RFID, Wi-Fi, or in a wired or wireless form connected to the server by a conductor member.
- control unit 200 includes a control board 210 , a switch 220 , and a conductor 230 .
- the control board 210 converts DC power received from the power supply unit 500 into AC power.
- the AC power converted by the control board 210 is transmitted to the coil unit 300 and the energizer 400 , and is used as power for operating the sensor device 20 .
- the control board 210 is accommodated in the inner space of the housing 100 . Specifically, the control board 210 is accommodated in the space formed inside the body part 110, and is not exposed to the outside.
- the control board 210 is connected to the switch 220 .
- the control board 210 may be operated or stopped.
- the control board 210 is electrically connected to the power supply unit 500 .
- the DC current generated by the power supply unit 500 may be transmitted to the control board 210 .
- the connection is achieved by the power lead 231 of the lead part 230 .
- the control board 210 is electrically connected to the coil unit 300 .
- the AC power converted by the control board 210 may be transmitted to the coil unit 300 and amplified.
- the connection is achieved by means of a coil wire 232 of the wire portion 230 .
- the control board 210 may be provided in any form capable of converting direct current into alternating current.
- the control board 210 may be provided as a DC-AC inverter (Direct Current - Alternating Current Inverter).
- the control board 210 is connected to the switch 220 .
- the switch 220 is operated by an operator, and a control signal for operating or stopping the control unit 200 is applied (see FIG. 3 ).
- the switch 220 is partially exposed to the outside of the housing 100 . Specifically, a part of the switch 220 is accommodated in the inner space of the body part 110 , and the other part is exposed to the outside of the body part 110 , upward in the illustrated embodiment.
- the switch 220 may be provided in any form that can be operated by an operator to receive a control signal.
- the switch 220 may be provided in the form of a toggle switch that is operated by pressing.
- the switch 220 may be provided in the form of a rotationally operated dial switch.
- the switch 220 is connected to the control board 210 .
- a control signal input by manipulating the switch 220 may be transmitted to the control board 210 .
- the conducting wire unit 230 connects the control unit 200 to the coil unit 300 , the energizing unit 400 , and the power supply unit 500 to be energized.
- the conducting wire 230 is accommodated in the inner space of the housing 100 . Specifically, the conducting wire portion 230 is accommodated in the inner space of the body portion 110, and is not exposed to the outside.
- a plurality of conductive wires 230 may be provided.
- the plurality of conductive wire units 230 may connect the control board 210 to the coil unit 300 , the current conducting unit 400 , and the power supply unit 500 , respectively.
- the conductive wire 230 includes a power wire 231 and a coil wire 232 .
- the power lead 231 connects the control board 210 and the power supply unit 500 to be energized.
- the coil conductor 232 connects the control board 210 and the coil unit 300 to be energized.
- the control board 210 and the conducting unit 400 are also electrically connected to each other by the coil conductor 232 .
- two coil conductors 232 are provided and are respectively connected to the two coil units 300 .
- the number of coil conductors 232 may be changed according to the number of coil units 300 .
- the controller 200 converts direct current into alternating current.
- the converted AC current may be amplified into a high frequency AC current by the controller 200 .
- an AC current having sufficient strength to operate the sensor device 20 may be formed.
- the coil unit 300 is accommodated in the housing 100 . Specifically, the coil unit 300 is accommodated in the inner space of the body unit 110 and is not exposed to the outside.
- the coil unit 300 is electrically connected to the control unit 200 . Specifically, the coil unit 300 is electrically connected to the control board 210 by the coil conductor 232 of the conductor unit 230 .
- the coil unit 300 is wound around the energizing unit 400 . Specifically, the coil unit 300 is wound around the coil coupling unit 410 of the conducting unit 400 , and is connected to the conducting unit 400 to be energized.
- the AC current amplified at a high frequency by the control unit 200 may be transmitted to the conducting unit 400 .
- a plurality of coil units 300 may be provided.
- the plurality of coil units 300 may be spaced apart from each other, and may be coupled to the conducting unit 400 at different positions.
- two coil units 300 are provided and are respectively coupled to the conducting units 400 at positions spaced apart from each other in the left and right directions.
- the number of coil units 300 may be changed.
- a single coil unit 300 extending longer than the coil unit 300 according to the illustrated embodiment ie, having a longer width in the left and right directions
- the number of coil units 300 may be determined according to the size of the entire test device 10 and the frequency of the AC power required to operate the sensor device 20 .
- the conduction unit 400 receives the AC current amplified at a high frequency by the coil unit 300 .
- the conducting unit 400 forms a magnetic field by transferring the alternating current received to the sensor device 20 accommodated in the sensor insertion unit 130 . Accordingly, the sensor device 20 may be operated to perform the function of the test device 10 .
- the energizing unit 400 is connected to the control unit 200 to be energized. Specifically, the energizing unit 400 is energably connected to the control unit 200 via the coil unit 300 .
- the conducting unit 400 is coupled to the coil unit 300 .
- the coil unit 300 is wound around the coil coupling unit 410 of the energizing unit 400, and is connected to each other so as to be energized.
- the conducting unit 400 is accommodated in the inner space of the housing 100 .
- the coil coupling part 410 of the energizing part 400 is accommodated in the inner space of the body part 110 of the housing 100 .
- the arm portion 420 of the energizing portion 400 is accommodated in the inner space of the extension portion 120 of the housing 100 .
- a portion of the conduction protrusion 430 of the conduction unit 400 is accommodated in the inner space of the extension portion 120 , and the remaining portion is exposed to the outside.
- the conducting unit 400 may be formed of a conductive material or a ferromagnetic material. This is to allow the alternating current amplified at a high frequency by the control unit 200 to smoothly pass through the coil unit 300 to form a magnetic field of sufficient strength to operate the sensor device 20 .
- the conducting unit 400 may be provided in the form of an alloy including iron (Fe) and iron (Fe), an electromagnet, a permanent magnet, or the like.
- the conducting unit 400 includes a coil coupling unit 410 , an arm unit 420 , a conducting protrusion 430 , and a space portion 440 .
- the coil coupling part 410 is a part on which the coil part 300 is wound.
- the coil coupling unit 410 may be electrically connected to the wound coil unit 300 to receive alternating current amplified at a high frequency by the coil unit 300 .
- the coil coupling part 410 is accommodated in the inner space of the body part 110 .
- the coil coupling unit 410 may be disposed to face the power supply unit 500 with the control unit 200 interposed therebetween. That is, in the illustrated embodiment, the coil coupling unit 410 is located biased toward the rear side opposite to the power supply unit 500 .
- the coil coupling part 410 partially surrounds the space part 440 which is a space in which the sensor device 20 is accommodated.
- the coil coupling portion 410 surrounds the front side of the space portion 440 .
- the coil coupling part 410 extends in the width direction of the housing 100 , in the left-right direction in the illustrated embodiment. As described above, in one embodiment, two coil units 300 may be provided to be spaced apart from each other in a direction in which the coil coupling units 410 extend.
- the two coil units 300 are spaced apart in the left and right directions, respectively, and are wound around the coil coupling unit 410 .
- Each end in the direction in which the coil coupling unit 410 extends, and each end in the left and right direction in the illustrated embodiment, is continuous with the arm unit 420 .
- the arm unit 420 transmits the AC current transmitted to the coil coupling unit 410 to the energizing protrusion 430 .
- the arm part 420 is electrically connected to the coil coupling part 410 and the energizing protrusion 430 , respectively.
- the arm part 420 is continuous with the coil coupling part 410 and the energizing protrusion 430 , respectively.
- the arm portion 420 has its front side end continuous with the coil coupling portion 410 .
- the rear end of the arm 420 is continuous with the energizing protrusion 430 .
- the arm part 420 may extend to form a predetermined angle with the coil coupling part 410 .
- the predetermined angle may be a right angle.
- the arm 420 is accommodated in the inner space of the housing 100 . Specifically, the arm part 420 is accommodated in the inner space of the extension part 120 of the housing 100 . The arm 420 is not exposed to the outside of the housing 100 .
- the arm part 420 extends in a direction opposite to the coil coupling part 410, in the illustrated embodiment, to the rear side. It will be understood that the direction in which the arm part 420 extends is the same as the direction in which the extension part 120 extends.
- a plurality of arm parts 420 may be provided.
- the plurality of arm parts 420 may be spaced apart from each other and disposed to face each other.
- two arm parts 420 are provided, respectively, continuous with the left and right ends of the coil coupling part 410 .
- the number and position of the arm parts 420 may be changed to correspond to the number and position of the extension part 120 .
- a space in which the two arm parts 420 are spaced apart from each other may be defined as a space part 440 .
- the two arm portions 420 surround the left and right sides of the space portion 440 , respectively.
- One end in the direction in which the arm portion 420 extends, the rear end in the illustrated embodiment, is continuous with the energizing protrusion 430 .
- the energizing protrusion 430 forms a magnetic field using the alternating current amplified at a high frequency.
- the sensor device 20 may be operated by the magnetic field formed by the energizing protrusion 430 to perform the function of the test device 10 .
- the energizing protrusion 430 is continuous with the arm 420 . Specifically, the energizing protrusion 430 is continuous with one end in the direction in which the arm portion 420 extends, and the rear end in the illustrated embodiment.
- the energizing protrusion 430 is formed to extend in a direction opposite to the arm portion 420 .
- the energizing protrusion 430 may extend to form a predetermined angle with the arm 420 .
- the predetermined angle may be a right angle.
- the energizing protrusion 430 is formed to extend inwardly, that is, in a direction toward the space portion 440 . As will be described later, a plurality of energizing protrusions 430 may be provided. Accordingly, it can be said that the energizing protrusions 430 are formed to extend in a direction toward each other.
- the energizing protrusion 430 is partially exposed on the outside of the housing 100 (see FIG. 3 ). That is, one end of the energized protrusion 430 opposite to the arm 420 (ie, an end in the direction toward the space 440 ) among each end in the extending direction is exposed to the outside.
- the magnetic field formed in the energizing protrusion 430 may be transmitted to the sensor device 20 without being attenuated.
- a plurality of energizing protrusions 430 may be provided.
- the plurality of energizing protrusions 430 may be continuous with the plurality of arm portions 420 , respectively.
- two energizing protrusions 430 are provided, respectively, continuous with the arm portions 420 positioned on the left and right sides.
- the extending directions of the energizing protrusions 430 may be defined to face each other.
- a surface of an end of the conductive protrusion 430 exposed to the outside may be positioned on the same plane as a surface of the plurality of extension portions 120 facing each other. That is, the surface of the end of the energizing protrusion 430 does not protrude outwardly or sink inwardly of the extension 120 .
- the sensor device 20 can be easily inserted and withdrawn, and the magnetic field formed by the energizing protrusion 430 can be transmitted to the sensor device 20 without being attenuated.
- a magnetic field is formed by the energizing protrusion 430, it is understood that a magnetic field can also be formed by the coil coupling unit 410 and the arm 420 through which the alternating current amplified at a high frequency is energized.
- another ferromagnetic material may be coupled to the coil coupling part 410 , the arm part 420 , and the energizing protrusion 430 .
- the ferromagnetic material may be disposed to surround the sensor device 20 coupled to the test device 10 to enhance the strength of the formed magnetic field.
- the ferromagnetic material may be provided in the form of a hinge or a slide, and may be coupled to the energizing protrusion 430 .
- the ferromagnetic material may be spread or slide to surround the sensor device 20 .
- the strength of the magnetic field formed by the test device 10 is enhanced, so that the operation (ie, for testing) reliability of the sensor device 20 can be improved.
- the ferromagnetic material is coupled to the energizing protrusion 430 , and when the sensor device 20 is accommodated in the sensor insertion part 130 , it slides and may be coupled through the sensor device 20 .
- the space 440 is a space in which the sensor device 20 is accommodated.
- the space part 440 includes the sensor insertion part 130 .
- the sensor insertion unit 130 may be said to be a part of the space unit 440 .
- the space portion 440 may be defined as a space formed between a plurality of arm portions 420 spaced apart from each other.
- two arm portions 420 are provided, respectively, located on the left and right sides, and the space portion 440 is formed therebetween. Accordingly, it can be said that the plurality of arm parts 420 face each other with the space part 440 interposed therebetween.
- the space portion 440 is partially surrounded by the coil coupling portion 410 , the arm portion 420 , and the energizing protrusion 430 .
- the front side of the space portion 440 is surrounded by the coil coupling portion (410).
- the left and right sides of the space portion 440 are surrounded by the arm portion 420 .
- the front side of the space 440 is partially surrounded by the energizing projection 430 .
- a distance at which the two extension parts 120 are spaced apart from each other is shorter than a distance where the two arm parts 420 are spaced apart from each other. Accordingly, it will be understood that the sensor insertion unit 130 may be defined as a part of the space unit 440 .
- the power supply unit 500 supplies a direct current that is a prototype of an alternating current for operating the sensor device 20 .
- the power supply unit 500 is electrically connected to the control board 210 of the control unit 200 .
- the connection is achieved by the power lead 231 of the lead part 230 .
- the power supply unit 500 is spaced apart from the coil unit 300 and the conducting unit 400 .
- the power supply unit 500 is disposed to face the coil unit 300 and the conducting unit 400 with the control unit 200 interposed therebetween.
- the power supply unit 500 is located on the front side and is arranged to face the coil unit 300 and the energization unit 400 located on the rear side.
- the rear side of the power supply unit 500 is partially covered by the control board 210 .
- the power supply unit 500 may be provided in any form capable of generating a direct current for a predetermined time without external power supply.
- the power supply unit 500 may be provided in the form of a battery such as a lithium ion battery.
- the test apparatus 10 may be operated for a predetermined time without receiving external power.
- the power supply unit 500 is provided with a small and lightweight battery, the size and weight of the test device 10 are reduced, so that portability and work convenience can be improved.
- a conducting wire member (not shown) is penetrated through the opening formed on the right side of the body unit 110 of the housing 100 described above to be connected to the power supply unit 500 . have.
- the conducting wire member may supply power for charging the power supply unit 500 by connecting an external power source and the power supply unit 500 to be energized.
- the power supply unit 500 may be operated by receiving power from an external power source.
- a conducting wire member for supplying power to the power supply unit 500 may pass through the opening formed on the right side of the body unit 110 .
- the test apparatus 10 may be miniaturized and lightened to improve portability and improve reliability of the test result of the sensor apparatus 20 .
- the sensor device 20 is provided in the circuit breaker to detect information about the environment inside or outside the circuit breaker.
- the information sensed by the sensor device 20 may include temperature, humidity, dust concentration, pressure, and the like.
- the sensor device 20 may include a sensor body 21 and a sensor coil 22 .
- the sensor body 21 forms the outer shape of the sensor device 20 , and a space is formed therein to mount various components for operating the sensor device 20 .
- the sensor coil 22 is accommodated in the sensor body 21 , and generates electric power using a magnetic field.
- the sensor device 20 may be operated by the generated power. Accordingly, the sensor coil 22 may be referred to as a harvesting coil.
- a plurality of sensor coils 22 may be provided.
- the plurality of sensor coils 22 may be spaced apart from each other and disposed to face each other.
- two sensor coils 22 are provided and are positioned to be spaced apart from each other in the vertical direction.
- the number and arrangement of the sensor coils 22 may be determined to be any number and location capable of generating power for the sensor device 20 to operate.
- FIG. 14 a state in which the sensor device 20 is coupled to the test device 10 is shown.
- the sensor device 20 moves in the direction coupled to the test device 10 through the opening formed on the front side of the sensor insertion unit 130 , that is, the front side.
- the sensor device 20 may be positioned in the sensor insert 130 through the other direction, ie, the upper side or the lower side.
- the degree to which the sensor device 20 is inserted into the sensor insertion unit 130 may be limited.
- the sensor coil 22 of the sensor device 20 may be disposed to overlap the energizing protrusion 430 in the width direction, that is, in the left and right direction in the illustrated embodiment.
- the direct current is converted into an alternating current and transferred to the coil unit 300 .
- the coil unit 300 amplifies the received alternating current at a high frequency and transmits it to the conducting unit 400 .
- the conducting unit 400 forms a magnetic field using the received alternating current.
- the sensor coil 22 generates electric power using the formed magnetic field, and the sensor device 20 is operated by the generated electric power.
- the normal operation of the sensor device 20 can be easily tested through a simple process of inserting the sensor device 20 into the sensor insertion unit 130 and operating the switch 220 .
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Abstract
Description
Claims (15)
- 직류 전류를 공급하는 전원부;상기 전원부와 통전 가능하게 연결되어, 공급된 상기 직류 전류를 교류 전류로 변환하는 제어부;상기 제어부와 통전 가능하게 연결되어, 상기 교류 전류의 에너지를 자기 에너지로 전환하는 코일부; 및상기 코일부와 통전 가능하게 연결되어, 상기 교류 전류를 이용하여 자기장을 형성하는 통전부를 포함하는,테스트 장치.
- 제1항에 있어서,상기 코일부는, 상기 통전부에 권취(wind)되는,테스트 장치.
- 제2항에 있어서,상기 코일부는 복수 개 구비되어, 복수 개의 코일부는 서로 다른 위치에서 상기 통전부에 권취되는,테스트 장치.
- 제1항에 있어서,상기 통전부는,상기 코일부가 권취되며, 일 방향으로 연장되는 코일 결합부;상기 코일 결합부와 연속되며, 상기 코일 결합부와 소정의 각도를 이루며 타 방향으로 연장되는 암(arm)부; 및상기 암부가 연장되는 방향의 일 단부에서 상기 암부와 소정의 각도를 이루며 연장되는 통전 돌출부를 포함하는,테스트 장치.
- 제4항에 있어서,상기 코일 결합부, 상기 암부 및 상기 통전 돌출부는 강자성체(ferromagnetic body)로 형성되는,테스트 장치.
- 제4항에 있어서,상기 암부는 두 개 구비되어 상기 일 방향으로 서로 이격되어 마주하게 위치되고,두 개의 상기 암부는, 상기 코일 결합부가 연장되는 방향의 각 단부와 각각 연속되는,테스트 장치.
- 제6항에 있어서,상기 통전 돌출부는 두 개 구비되어, 두 개의 상기 암부와 각각 연속되고,두 개의 상기 통전 돌출부는, 서로를 향해 연장되는,테스트 장치.
- 제6항에 있어서,상기 통전부는,상기 코일 결합부 및 두 개의 상기 암부에 부분적으로 둘러싸여 형성되며, 센서 장치가 삽입되는 공간부를 포함하는,테스트 장치.
- 제1항에 있어서,상기 제어부는,상기 직류 전류를 상기 교류 전류로 변환하는 제어 기판;상기 제어 기판과 상기 전원부를 통전 가능하게 연결하는 전원 도선; 및상기 제어 기판과 상기 코일부를 통전 가능하게 연결하는 코일 도선을 포함하는,테스트 장치.
- 제9항에 있어서,상기 제어부는,그 일 부분이 외측으로 노출되며, 상기 제어 기판과 연결되어, 상기 제어 기판이 작동되기 위한 제어 신호를 인가받는 스위치를 포함하는,테스트 장치.
- 제1항에 있어서,상기 전원부는 충전 가능한 배터리로 구비되는,테스트 장치.
- 제1항에 있어서,내부에 공간이 형성되어, 상기 제어부, 상기 코일부 및 상기 통전부를 수용하는 하우징을 포함하는,테스트 장치.
- 제12항에 있어서,상기 하우징은,상기 제어부 및 상기 코일부와, 상기 통전부의 일부를 수용하는 몸체부; 및상기 몸체부와 연속되며, 상기 통전부의 나머지 일부를 수용하고, 상기 몸체부에서 연장 형성되는 연장부를 포함하는,테스트 장치.
- 제13항에 있어서,상기 연장부는 복수 개 구비되어, 복수 개의 상기 연장부는 서로 이격되어 마주하게 배치되고,상기 하우징은,상기 몸체부, 복수 개의 상기 연장부에 부분적으로 둘러싸이는 공간인 센서 삽입부를 포함하는,테스트 장치.
- 제1항에 있어서,상기 제어부는 상기 교류 전류의 주파수를 증폭하고,상기 통전부는, 상기 주파수가 증폭된 상기 교류 전류를 이용하여 자기장을 형성하는,테스트 장치.
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CN202280019793.4A CN116964462A (zh) | 2021-03-09 | 2022-01-05 | 测试装置 |
US18/280,744 US20240159830A1 (en) | 2021-03-09 | 2022-01-05 | Test device |
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KR1020210030871A KR20220126509A (ko) | 2021-03-09 | 2021-03-09 | 테스트 장치 |
KR10-2021-0030871 | 2021-03-09 |
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JP2005257701A (ja) * | 2000-01-20 | 2005-09-22 | Jfe Steel Kk | 磁性体材料の材料特性の計測方法、及び磁性体材料の材料特性測定装置 |
KR20100108034A (ko) * | 2009-03-27 | 2010-10-06 | 주식회사 포스코 | 강판의 강도 측정장치 및 측정방법 |
KR101043319B1 (ko) * | 2007-07-05 | 2011-06-22 | 한국전력공사 | 자계 센서, 그를 이용한 도체 상태 계측 장치 및 진단시스템 |
US9671484B2 (en) * | 2013-08-08 | 2017-06-06 | Haechitech Corporation | Magnetic sensor test apparatus and method of testing a magnetic sensor |
KR20190015094A (ko) * | 2017-08-04 | 2019-02-13 | 가부시키가이샤 아드반테스트 | 자기 센서 시험 장치 |
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KR20070119222A (ko) | 2006-06-14 | 2007-12-20 | 대웅전기공업(주) | 디지탈 축소형 모자익 배전반용 차단기 테스트장치 |
KR20120043326A (ko) | 2010-10-26 | 2012-05-04 | (주)엠피에스 | 휴대용 차단기 특성분석 장치 |
-
2021
- 2021-03-09 KR KR1020210030871A patent/KR20220126509A/ko not_active IP Right Cessation
-
2022
- 2022-01-05 US US18/280,744 patent/US20240159830A1/en active Pending
- 2022-01-05 CN CN202280019793.4A patent/CN116964462A/zh active Pending
- 2022-01-05 WO PCT/KR2022/000149 patent/WO2022191396A1/ko active Application Filing
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JP2005257701A (ja) * | 2000-01-20 | 2005-09-22 | Jfe Steel Kk | 磁性体材料の材料特性の計測方法、及び磁性体材料の材料特性測定装置 |
KR101043319B1 (ko) * | 2007-07-05 | 2011-06-22 | 한국전력공사 | 자계 센서, 그를 이용한 도체 상태 계측 장치 및 진단시스템 |
KR20100108034A (ko) * | 2009-03-27 | 2010-10-06 | 주식회사 포스코 | 강판의 강도 측정장치 및 측정방법 |
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KR20190015094A (ko) * | 2017-08-04 | 2019-02-13 | 가부시키가이샤 아드반테스트 | 자기 센서 시험 장치 |
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KR20220126509A (ko) | 2022-09-16 |
CN116964462A (zh) | 2023-10-27 |
US20240159830A1 (en) | 2024-05-16 |
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