JP5542775B2 - Insulation inspection device - Google Patents

Description

  The present invention relates to an insulation inspection apparatus, and more specifically, when measuring the resistance of various electronic components to inspect insulation, the time required for inspection is shortened and the components of the apparatus are simplified. It is related with the insulation test | inspection apparatus which can.

  In general, various electronic components such as wiring components and resistance modules are shipped only after normal products are inspected by checking insulation resistance and connectivity of internal circuits.

  In particular, for wiring components made up of a large number of circuit wires, the quality of the wiring components is judged by inspecting whether the insulation between the circuit wires is sufficient.

  In the process of judging such insulation, generally, a voltage is applied to one circuit wiring, a current flowing through the other circuit wiring is measured, a resistance value between both circuit wirings is calculated, and the resistance value is calculated. Based on this, the insulation state is determined.

  Recently, functions of various electronic products such as computers and mobile phones have been expanded, data processing speed has been improved, and miniaturization has been promoted. However, with such recent technological development, insulation must be inspected. The fact is that the number of measurement points is increasing rapidly.

Korean Published Patent No. 10-2008-044785

  As described above, when the number of measurement points increases, a large number of measurement switching circuits are required correspondingly, and the time required for switching and measurement increases rapidly. Therefore, not only does the inspection process require a long time and the production efficiency is reduced, but also a large amount of money is invested in the inspection process, which has an adverse effect on the reduction of product cost.

  FIG. 1 is a diagram illustrating a configuration of a conventional insulation inspection apparatus.

  In the conventional insulation test method, the resistance inside the electronic component is measured by a two-terminal method, a four-terminal method, or the like.

  Hereinafter, referring to FIG. 1, a conventional insulation test process using a four-terminal method will be described in detail.

  As shown in FIG. 1, in the conventional four-terminal method, in order to connect the measurement points at Hp, Hc, Lc, and Lp which are the input parts of the measurement device, a four-contact switch is required for each measurement point. is there.

  Therefore, as shown in FIG. 1, when there are 92 measurement points, 92 × 4 = 368 switches are required. That is, if there are N measurement points, a total of 4N switches are required.

  FIG. 2 is a diagram illustrating a configuration of a conventional insulation inspection apparatus.

  In order to shorten the time required for measurement, a plurality of resistance measuring devices are connected and the resistance between a plurality of measurement points is measured simultaneously.

  Referring to FIG. 2, relays are provided at intersections of the matrix, and arbitrary contact points can be turned on to switch between a plurality of measurement points and a 4-terminal / 2-terminal measurement method.

  Further, when the internal circuits of the electronic component are measurement points that do not interfere with each other, it is possible to measure resistance at two locations simultaneously.

  However, the conventional apparatus as shown in FIG. 2 requires 8N relays. That is, as the number of measurement points and measuring instruments increases, the number of relays increases to the square of the matrix, and there is a problem in that an increase in cost and an increase in size of the apparatus cannot be avoided.

  Accordingly, there is an increasing demand for an insulation inspection apparatus that can shorten the time required for inspection and reduce the number of necessary relays.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an insulation inspection apparatus capable of reducing the number of relays as compared with the prior art and reducing the inspection time as compared with the prior art. There is to do.

  In order to solve the above-described object, an insulation inspection apparatus according to the present invention electrically connects a measuring instrument that supplies power to an object to measure voltage or current, and the measuring instrument and the object. A bus wiring line, a measurement point conversion relay unit that selectively connects the measurement point of the object and the bus wiring line, and a measuring device conversion relay unit that selectively connects the measuring device and the bus wiring line And can be configured.

  Here, the measurement point conversion relay unit may include two relays connected to each measurement point of each object.

  In addition, the measuring instrument conversion relay unit may include four relays connected to each contact of the measuring instrument.

  In addition, an insulation inspection apparatus according to another embodiment of the present invention includes a plurality of measuring devices that supply power to an object and measure voltage or current, and a bus wiring line that connects the measuring device and the object. A measuring point conversion relay unit that selectively connects the measurement point of the object and the bus wiring line, a measuring device conversion relay unit that selectively connects the measuring device and the bus wiring line, and the bus An interference prevention relay unit that is provided in the wiring line and controls the path so that interference does not occur between the plurality of measuring devices can be configured.

  Here, the measurement point conversion relay unit may include two relays connected to each measurement point of each object.

  In addition, the measuring instrument conversion relay unit may include four relays connected to each contact of the measuring instrument.

  Also, two measuring devices may be provided, and the measuring device conversion relay unit may include eight relays connected to each contact of the measuring device.

  In addition, four measuring instruments may be provided, and the measuring instrument conversion relay unit may include eight relays connected to each contact of the measuring instrument.

  An insulation test apparatus according to still another embodiment of the present invention includes four measuring devices for supplying a power to an object and measuring a voltage or current, and a bus wiring line connecting the measuring device and the object. A measuring point conversion relay unit that selectively connects the measurement point of the object and the bus wiring line, and two relays are connected to each measurement point of each object, and the measuring device And the bus wiring line, a measuring instrument conversion relay unit in which eight relays are connected to each contact of the measuring instrument, and a plurality of measurement And an interference prevention relay unit that controls the path so that interference does not occur between the devices.

  Here, the measuring device includes a first measuring device, a second measuring device, a third measuring device, and a fourth measuring device, and the interference prevention relay unit includes the first measuring device and the second measuring device. A first interference prevention relay unit provided between the measuring device and between the third measuring device and the fourth measuring device may be included.

  The measuring device includes a first measuring device, a second measuring device, a third measuring device, and a fourth measuring device. The bus wiring line includes a first measuring device and a third measuring device. A first branch line and a second branch line that connect between the first measuring instrument and the second measuring instrument and the fourth measuring instrument, respectively, and the interference prevention relay unit includes the first anti-interference relay section, Between the objects at the connection point of the second branch line and the first measuring device, between the objects at the connection point of the second branch line and the second measuring device, the first branch line and the third measuring device, And a second interference prevention relay unit provided between the objects at the connection point between the objects and at the connection point between the second branch line and the fourth measuring device.

  The measuring device includes a first measuring device, a second measuring device, a third measuring device, and a fourth measuring device. The bus wiring line includes a first measuring device and a third measuring device. And a first branch line and a second branch line for connecting the second measuring instrument and the second measuring instrument to the fourth measuring instrument, respectively. A first interference preventing relay section provided between the measuring device and the second measuring device and between the third measuring device and the fourth measuring device; the first branch line; and the first measurement. Between the objects at the connection point with the device, between the objects at the connection point between the second branch line and the second measuring device, between the objects at the connection point between the first branch line and the third measuring device, and It can comprise including the 2nd interference prevention relay part each provided between objects at the connection point of a 2nd branch line and a 4th measuring device.

  An insulation inspection apparatus according to still another embodiment of the present invention is an inspection apparatus that performs resistance measurement inspection by selectively converting a plurality of measurement points, and includes a means for converting the measurement points, and a measuring instrument. A switching circuit network including a means for converting terminals and a conversion means for separating the measuring devices can be included.

  Here, the means for converting the measurement point can be composed of a switching circuit having at least two contacts.

  Further, the means for converting the terminals of the measuring device may be provided with 2 squares (4) with 4 contacts as one unit.

  Further, the conversion means for separating the measuring devices may be provided by squaring 2 with 4 contacts as one unit.

  The conversion means may be configured to be connected to each other by bus wiring means provided according to the number of measurement points and the number of measuring instruments.

  The switching network may selectively apply a two-terminal measurement method or a four-terminal measurement method as necessary, or may selectively apply resistance measurement or insulation resistance measurement.

  According to the present invention configured as described above, by providing the measuring instrument conversion relay unit capable of selectively branching the contacts of the measuring instrument, the number of relays used in the entire apparatus can be greatly reduced, and the equipment can be reduced in size. And cost reduction.

  Further, since interference between the measuring instruments can be prevented even if a large number of measuring equipments are used, the inspection efficiency is improved as compared with the conventional case, and the time required for the inspection is further reduced.

1 is a diagram illustrating a configuration of an insulation inspection apparatus according to a conventional technique. 1 is a diagram illustrating a configuration of an insulation inspection apparatus according to a conventional technique. It is drawing which shows the structure of the insulation test | inspection apparatus by Embodiment 1 of this invention. It is drawing which shows the structure of the insulation test | inspection apparatus by Embodiment 2 of this invention. It is drawing which shows the structure of the insulation test | inspection apparatus by Embodiment 3 of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. Each embodiment shown below is given as an example so that those skilled in the art can sufficiently communicate the idea of the present invention. Therefore, the present invention is not limited to the embodiments described below, but can be embodied in other forms. In the drawings, the size and thickness of the device can be exaggerated for convenience. Like reference numerals refer to like elements throughout the specification.

  The terminology used herein is for the purpose of describing embodiments and is not intended to limit the invention. In this specification, the singular includes the plural unless specifically stated otherwise. As used herein, “includes” a stated component, step, action, and / or element does not exclude the presence or addition of one or more other components, steps, actions, and / or elements. Want to be understood.

  In the prior art, when the number of measurement points is N, 4N relays are necessary. Therefore, the increase in the number of measurement points cannot avoid the increase in cost and the size of the equipment. In order to solve such a conventional problem, the inventor of the present invention combines a measurement point conversion relay unit, a measurement device conversion relay unit, and an interference prevention relay unit that prevents interference between a plurality of measurement devices. Developed technology that can reduce the total number of relays.

  Here, the relay which converts each measurement point can be made into 2 contacts.

  Moreover, the relay which converts a measuring instrument can be provided with the square of 2 by making 4 contacts into 1 unit.

  Further, it is possible to provide an interference separation relay between the measuring instruments with the square of 2 with 4 contacts as l unit.

  According to the above configuration, when the number of measurement points is increased, (measurement point × 2 + α) is obtained, so that the number of relays can be reduced to about a half of that in the prior art.

  Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings.

  FIG. 3 is a diagram illustrating a configuration of the insulation test apparatus according to the first embodiment of the present invention.

  Referring to FIG. 3, the insulation test apparatus according to the first embodiment of the present invention may include a measuring device 30, a bus wiring line, a measuring point conversion relay unit 10, and a measuring device conversion relay unit 20.

  Here, the measuring device 30 supplies power to the object and measures voltage or current.

  The bus wiring line electrically connects the measuring device 30 and the object.

  The measurement point conversion relay unit 10 selectively connects the measurement point of the object and the bus wiring line.

  The measuring instrument conversion relay unit 20 selectively connects the measuring instrument 30 and the bus wiring line.

  Here, two relays may be connected to each measurement point of each object.

  In addition, four relays may be connected to each contact of the measuring device 30.

  As shown in FIG. 1, assuming the case where there are 92 measurement points and the resistance R1 is measured at 4 terminals, the operation of the insulation inspection apparatus according to Embodiment 1 of the present invention will be described in detail as follows. .

  First, measurement points P1: RyX1, P2: RyX3, P89: RyX178, and P90: RyX180 are selectively turned ON.

  Next, the contacts Hp: RyY1, Hc: RyY7, Lc: RyY10, and Lp: RyY16 of the measuring device 30 are selectively turned on and connected to the measuring device 30.

  On the other hand, the operation when measuring the resistance R2 to two terminals is as follows.

  First, measurement points P3: RyX5 and P5: RyX10 are selectively turned on.

  Next, the contacts Hp: RyY1, Hc: RyY5, Lc: RyYI0, and Lp: RyYI4 of the measuring device 30 are selectively turned on and connected to the measuring device 30.

  As described above, when the insulation inspection apparatus according to the first embodiment of the present invention is used, all the functions of the inspection apparatus according to the prior art shown in FIG. 1 are performed and the total number of relays is 92 × 2 + 4 × 4 = 200. Is required, a reduction of about 45% can be achieved compared to the prior art where 368 are required.

  FIG. 4 is a diagram showing a configuration of an insulation inspection apparatus according to Embodiment 2 of the present invention.

  Referring to FIG. 4, unlike the first embodiment, two measuring devices 30 and two measuring device conversion relays are provided, and an interference preventing relay unit 40 is further provided.

  The interference prevention relay unit 40 is provided in the bus wiring line so that no interference occurs between the two measuring devices 30.

  For clarity of explanation, the two measuring devices 30 are divided into a first measuring device 30-1 and a second measuring device 30-2.

  The relays RyY1 to RyY32 of the first measuring device conversion relay unit 20-1 are connected to the terminals Hp, Hc, Lc, and Lp of the first measuring device 30-1.

  The relays RyY33 to RyY64 of the second measuring device conversion relay unit 20-2 are connected to the terminals Hp, Hc, Lc, and Lp of the second measuring device 30-2.

  The relays RyX1 to RyX184 of the measurement point conversion relay unit 10 are connected to the measurement points P1 to P92.

  Here, the relays RyC1 to RyC8 of the interference prevention relay unit 40 are connected to the intermediate points of the relays RyX1 to RyX184.

  When the same bus wiring line is selected for the first measuring device 30-1 and the second measuring device 30-2, the interference prevention relay unit 40 prevents the measurement signal from interfering.

  In the following, the operation will be described assuming that measurement is performed simultaneously with the resistance R1 of the insulation test apparatus according to the second embodiment having four terminals and the resistance R2 having two terminals.

  First, measurement points P1: RyX1, P2: RyX3, P89: RyX178, and P90: RyX180 are turned ON.

  Next, the terminals Hp: RyY1, Hc: RyYll, Lc: RyY18, Lp: RyY28 of the first measuring device 30-2 are turned ON.

  Next, the relays RyC2 and RyC4 of the interference prevention relay unit 40 are turned on.

  Next, measurement points P3: RyX5 and P87: RyX174 are selectively turned on.

  Next, the terminals Hp: RyY37, Hc: RyY45, Lc: RyY54, and Lp: RyY62 of the second measuring device 30-2 are selectively turned on.

  Next, the intermediate point RyC5 is selectively turned ON.

  In the case of this embodiment, the total number of necessary relays is 184 + 72 = 256 (N × 2 + 8 × 8 + 8).

  According to the prior art shown in FIG. 1, measurement cannot be performed using two measuring devices 30 simultaneously.

  According to the prior art shown in FIG. 2, (N = 92) × 4 × 2 = 736 relays are required.

  Therefore, the insulation test apparatus according to the present embodiment can reduce the number of relays by about 65% compared to the case of the prior art shown in FIG.

  Further, since the inspection is performed with the two measuring devices 30 at the same time, the inspection time can be reduced to about ½.

  FIG. 5 is a diagram showing a configuration of an insulation inspection apparatus according to Embodiment 3 of the present invention.

  Four measuring devices 30 for supplying power to the object and measuring voltage or current, a bus wiring line connecting the measuring device 30 and the object, a measurement point of the object, and the bus wiring line The measurement point conversion relay unit 10 in which two relays are connected for each measurement point of each object, the measurement device 30 and the bus wiring line are selectively connected, and the measurement device The measuring instrument conversion relay unit 20 in which eight relays are connected to each of the 30 contacts and the bus wiring line, and the path is controlled so that no interference occurs between the measuring instruments 30. The interference prevention relay unit 40 may be included.

  Referring to FIG. 5, the insulation test apparatus according to the third embodiment differs from the insulation test apparatus according to the second embodiment in that it has four measuring instruments 30, two branch lines 50-1 and 50-2, A second interference prevention relay unit 41 is added to the configuration.

  For convenience of explanation, the four measuring devices 30 are divided into a first measuring device 30-1, a second measuring device 30-2, a third measuring device 30-3, and a fourth measuring device 30-4. The two branch lines 50 are divided into a first branch line 50-1 and a second branch line 50-2, and the interference prevention relay unit 40 is divided into the first interference prevention relay units 40-1, 40-2, and the second. The interference prevention relay units 41-1, 41-2, 41-3, and 41-4 are divided.

  Here, the first branch line 50-1 connects between the first measuring device 30-1 and the third measuring device 30-3, and the second branch line 50-2 is connected to the second measuring line 30-2. The measuring device 30-2 is connected to the fourth measuring device 30-4.

  The first interference prevention relay unit 40-1 includes a first measuring device 30-1 and a second measuring device 30-2, and a third measuring device 30-3 and a fourth measuring device. 30-4, respectively.

  In addition, the second interference prevention relay unit 41 is connected between objects at the connection point between the first branch line 50-1 and the first measuring device 30-1, and between the second branch line 50-2 and the first branch line 50-2. Between the objects at the connection point of the second measuring device 30-2, between the objects at the connection point between the first branch line 50-1 and the third measuring device 30-3, and the second branch line 50-. 2 and the fourth measuring instrument 30-4 are provided between the objects at the connection point.

  On the other hand, since the operation principle according to the present embodiment is substantially similar to the operation principle of the second embodiment, a specific description regarding the operation principle of the present embodiment will be omitted.

  In the case of the present embodiment, the total number of necessary relays is 92 × 2 + 8 × 2 + 32 × 2 × 4 = 456, and thus is reduced by about 70% from the total number of necessary relays 92 × 4 × 4 = 1472 in the prior art shown in FIG. Is done.

  In addition, since the four measuring instruments 30-1, 30-2, 30-3, and 30-4 can be inspected simultaneously, the time required for the inspection is reduced to about 1/4.

  Meanwhile, an insulation inspection apparatus according to another embodiment of the present invention is an inspection apparatus that performs resistance measurement inspection by selectively converting a plurality of measurement points, and means for converting the measurement points, and a terminal of the measuring instrument And a switching circuit network including conversion means for separating the measuring devices.

  Here, the means for converting the measurement point can be composed of a switching circuit having at least two contacts.

  Further, the means for converting the terminals of the measuring device may be provided by squaring 2 with 4 contacts as one unit.

  Further, the conversion means for separating the measuring devices may be provided by squaring 2 with 4 contacts as one unit.

  The conversion means may be configured to be connected to each other by bus wiring means provided according to the number of measurement points and the number of measuring instruments.

  The switching network may selectively apply a two-terminal measurement method or a four-terminal measurement method as necessary, or may selectively apply resistance measurement or insulation resistance measurement.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

DESCRIPTION OF SYMBOLS 10 Measurement point conversion relay part 20 Measuring instrument conversion relay part 30 Measuring instrument 40 Interference prevention relay part 40-1, 40-2 1st interference prevention relay part 41-1, 41-2, 41-3, 41-4 1st 2 Interference prevention relay part 50-1, 50-2 Branch line

Claims (14)

In an apparatus for inspecting the insulation of an object that is an electronic component,
A plurality of measuring devices that supply power to an object and measure voltage or current;
A bus wiring line connecting the measuring device and the object;
A measurement point conversion relay unit for selectively connecting the measurement point of the object and the bus wiring line;
A measuring instrument conversion relay section for selectively connecting the measuring instrument and the bus wiring line;
Provided in the bus wiring line, an interference prevention relay unit for controlling the path so that interference does not occur between a plurality of measuring instruments,
Insulation inspection device including. The measurement point conversion relay unit is
The insulation test apparatus according to claim 1 , wherein two relays are connected to each measurement point of each object. Two measuring instruments are provided,
The measuring instrument conversion relay unit is
The insulation test apparatus according to claim 1 , wherein eight relays are connected to each contact of the measuring instrument. Four measuring instruments are provided,
The measuring instrument conversion relay unit is
The insulation test apparatus according to claim 1 , wherein eight relays are connected to each contact of the measuring instrument. In an apparatus for inspecting the insulation of an object that is an electronic component,
Four measuring instruments that supply power to the object and measure voltage or current;
A bus wiring line connecting the measuring device and the object;
A measurement point conversion relay unit in which the measurement point of the object and the bus wiring line are selectively connected, and two relays are connected to each measurement point of the object;
A measuring instrument conversion relay unit, wherein the measuring instrument and the bus wiring line are selectively connected, and eight relays are connected to each contact of the measuring instrument,
Provided in the bus wiring line, an interference prevention relay unit for controlling the path so that interference does not occur between a plurality of measuring instruments,
Insulation inspection device including. The measuring instrument comprises a first measuring instrument, a second measuring instrument, a third measuring instrument, and a fourth measuring instrument,
The interference prevention relay unit is
6. The apparatus according to claim 5 , further comprising a first interference prevention relay unit provided between the first measuring device and the second measuring device and between the third measuring device and the fourth measuring device. Insulation inspection equipment. The measuring instrument comprises a first measuring instrument, a second measuring instrument, a third measuring instrument, and a fourth measuring instrument,
The bus wiring line includes a first branch line that connects the first measuring device and the third measuring device, and a space between the second measuring device and the fourth measuring device. Further comprising a second branch line connecting
The interference prevention relay unit is
Between the object from the connection point between the first measuring device and the first branch line from the connection point between the second measuring device and the second branch line between the object, the first between the object from the connection point between the branch line and the third measuring instrument, and each provided is a second interference between the object from a connection point between said fourth measuring device and the second branch line The insulation test apparatus according to claim 5 , comprising a prevention relay unit. The measuring instrument comprises a first measuring instrument, a second measuring instrument, a third measuring instrument, and a fourth measuring instrument,
The bus wiring line includes a first branch line that connects the first measuring device and the third measuring device, and a space between the second measuring device and the fourth measuring device. Further comprising a second branch line connecting
The interference prevention relay unit is
A first interference preventing relay section provided between the first measuring device and the second measuring device and between the third measuring device and the fourth measuring device;
Between the objects at the connection point between the first branch line and the first measuring device, between the objects at the connection point between the second branch line and the second measuring device, and the first branch line. And a second interference prevention relay unit provided between the objects at the connection point between the second measuring line and the third measuring device, and between the objects at the connection point between the second branch line and the fourth measuring device,
The insulation test | inspection apparatus of Claim 5 containing. In an inspection apparatus that selectively converts a plurality of measurement points to perform resistance measurement inspection,
An insulation inspection apparatus including a switching circuit network including means for converting a measurement point, means for converting a terminal of the measuring instrument, and converting means for separating the measuring instruments. The insulation inspection apparatus according to claim 9 , wherein the means for converting the measurement point is constituted by a switching circuit having at least two contacts. The insulation test apparatus according to claim 9 , wherein four means for converting terminals of the measuring instrument are provided with four contacts as one unit. 10. The insulation test apparatus according to claim 9 , wherein four conversion means for separating the measuring devices are provided with four contacts as one unit. 10. The insulation test apparatus according to claim 9 , wherein the conversion means are connected to each other by bus wiring means provided in accordance with the number of measurement points and the number of measuring instruments. The switching network is
10. The insulation test according to claim 9 , wherein a two-terminal measurement method and a four-terminal measurement method can be selectively applied as needed, and resistance measurement or insulation resistance measurement can be selectively applied. apparatus.

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