JP2002199519A - Connection switcher and measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simplification of a construction and a reduction of the manufacturing cost. SOLUTION: It is a connecting switcher 3 comprises a substrate 11 arranged with connectors 12a-12c connected to first - third high voltage lines, and a substrate 21 formed with a connecting pattern 22c connecting the connectors 22a and 22b as well as arranged with the connector 22b connected to the connector 12b and the connector 22a connected to the connector 12a or the connector 12c. The connector 12a-12c are arranged on the substrate 11 such that the distance between the connector 12a and the connector 12b, and the distance between the connector 12b and the connector 12c are equal, and the connectors 22b and 22a are arranged to the substrate 21 in such a way that when the substrate 21 is pushed in a first direction against the substrate 11, they are connected to the connectors 12b and 12a, and when the substrate 21 is pushed in a second direction against the substrate 11, they are connected to the connector 12b and 12c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection switch for high-voltage line switching connection.

[0002]

2. Description of the Related Art As this kind of connection switch, a connection switch 73 constituting a part of a measuring device 71 shown in FIG. 6 is conventionally known. The measuring device 71 includes a high-pressure probe 4
a, 4b, a high-voltage signal S to be measured
a and Sb are configured to be capable of performing electrical measurement such as voltage measurement, and a connection switch 73 including high voltage relays 73a and 73b for connecting any one of the high voltage probes 4a and 4b to the measurement unit 5; And a control unit 75 for switching control of the unit 73. In this case, each of the high voltage relays 73a and 73b switches to the ON state when the control unit 75 outputs the ON signal SON, and switches to the OFF state when the OFF signal SOFF is output.

In this measuring device 71, for example, when electrical measurement is performed on a signal Sa to be measured, a control unit 75
Sends the ON signal SON and the OFF signal SOFF to the high voltage relay 73.
a and 73b. At this time, the high-voltage relays 73a and 73b are switched on and off, respectively, so that the high-voltage cables 6a and 6b are electrically connected and the high-voltage cables 6c and 6b are electrically disconnected. As a result, the measurement target signal Sa input via the high-voltage probe 4a is output from the connection switch 73 to the measurement unit 5, and a predetermined electrical measurement is performed.
On the other hand, when electrical measurement is performed on the measurement target signal Sb, the control unit 75 outputs the OFF signal SOFF and the ON signal SON.
Are output to the high voltage relays 73a and 73b, respectively. At this time, the high voltage relays 73a and 73b are switched to the off state and the on state, respectively, so that the high voltage cables 6c and 6b are electrically connected and the high voltage cables 6a and 6b are electrically disconnected. As a result, the measurement target signal Sb input via the high voltage probe 4b is output from the connection switch 73 to the measurement unit 5, and a predetermined electrical measurement is performed.

[0004]

However, the connection switch 73 in the conventional measuring device 71 has the following problems. That is, the conventional connection switch 73 uses two high-voltage relays 73a and 73b to output either one of the two signals to be measured Sa and Sb to the measuring unit 5. In this case, the high voltage relays 73a and 73b are generally expensive. Therefore, this connection switch 73
There is a problem in that the use of two expensive high-voltage relays increases the component cost of the connection switching device 73, and as a result, the manufacturing cost of the measuring device 71 as a whole increases. In addition, in the conventional measuring device 71, a control unit 75 for switching control of the high voltage relays 73a and 73b is required. Therefore, the configuration is complicated, and the manufacturing cost of the control unit 75 is reduced. There is also a problem that manufacturing costs are soaring.

[0005] The present invention has been made in view of the above problems, and has as its main object to provide a connection switch and a measuring device that can achieve a simplified configuration and a reduced manufacturing cost.

[0006]

In order to achieve the above object, a connection switch according to claim 1 is provided with first and second connection switches separated from each other.
And a first, respectively connected to a third high voltage line.
A first substrate on which second and third high-voltage line-side connectors are arranged; a first connection connector connected to the second high-voltage line-side connector; and the first high-voltage line-side connector Alternatively, a second connection connector connected to the third high-voltage line-side connector is arranged, and a second connection pattern for connecting the first and second connection connectors to each other is formed. A connection switch comprising a substrate, wherein the first to third high-voltage line-side connectors are connected to the distance between the first and second high-voltage line-side connectors and to the second and third high-voltage line-side connectors. 3 is disposed on the first substrate at an equal interval between the high-voltage line-side connectors, and the first and second connectors are:
When the second substrate is pressed against the first substrate in a first direction and is connected to the second and first high-voltage line-side connectors, respectively, When the first substrate is pressed against the first substrate in the second direction, the second substrate is disposed on the second substrate so as to be connectable to the second and third high-voltage line-side connectors. It is characterized by having. In addition, including the invention described later, the “first direction” and the “second direction”
Unless they are not the same direction, directions orthogonal to each other, directions opposite to each other, and directions different from each other by 45 degrees,
Any orientation can be specified.

A connection switch according to a second aspect of the present invention includes a first, second, third and fourth high voltage connected to first, second, third and fourth high voltage lines separated from each other. A first substrate on which a line-side connector is arranged; a first connector for connection to the second high-voltage line-side connector or the third high-voltage line-side connector; and the first high-voltage line Side connector or a second connection connector connected to the fourth high-voltage line side connector, and a connection pattern for connecting the first and second connection connectors to each other is formed. A connection switching device comprising: a first substrate;
To the fourth high-voltage line connector, the distance between the first and second high-voltage line connectors and the distance between the third and fourth high-voltage line connectors are equal with each other. And the first and second connection connectors are arranged such that when the second substrate is pressed against the first substrate in a first direction, the second connector is connected to the second connector.
And when the second substrate is pressed against the first substrate in the second direction, the third and fourth connectors are connected to the first high-voltage line-side connector. The high-voltage line connector is arranged on the second board so as to be connectable to the high-voltage line connector.

According to a third aspect of the present invention, there is provided a connection switch according to the first or second aspect, wherein each of the high-voltage line-side connector and the both-side connector is a card edge type connector. It is characterized by being.

According to a fourth aspect of the present invention, there is provided a measuring apparatus including the connection switch according to any one of the first to third aspects, and an apparatus main body, wherein the first substrate is fixed inside the apparatus main body; The apparatus main body is formed with an insertion hole through which the second substrate can be inserted from a direction perpendicular to the front panel.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a measuring apparatus having a connection switch according to the present invention will be described below with reference to the accompanying drawings. The conventional measuring device 7
Components having the same functions as those of the first and the connection switch 73 are denoted by the same reference numerals, and redundant description will be omitted.

First, the configuration of the measuring device 1 will be described with reference to FIGS.

As shown in FIG. 1, the measuring apparatus 1 can measure a current value, a voltage value, a power amount, and the like for a high voltage measurement target signal Sa, Sb input through the high voltage probes 4a, 4b. It is configured. Specifically, the measuring device 1 includes a measuring device main body 2, a connection switch 3, high-voltage probes 4a and 4b, and a measuring unit 5. In this case, the measuring device main body 2 corresponds to the device main body in the present invention, and houses the connection switch 3, the measuring unit 5, and the like. Further, as shown in FIG. 2, a slit 2b for inserting and removing the substrate 21 at the time of connection switching by the connection switch 3 described later is formed on the front panel 2a of the measurement device main body 2. The slit 2b has an opening width of about 2 mm, which is slightly wider than its thickness (for example, 1.6 mm) so that a substrate 21 described later can be inserted in order to prevent insertion of a human hand into the measuring apparatus main body 2. Is formed.

As shown in FIG. 1, the connection switching unit 3 includes substrates 11 and 21 and switches and connects one of the high-voltage probes 4 a and 4 b to the measuring unit 5. In this case, the substrate 11
Corresponds to the first substrate in the present invention, and is fixed inside the measuring device main body 2. Also, the board 11 has card edge type connectors 12a, connected to the high voltage probes 4a, 4b via high voltage cables 6a, 6c, respectively.
12c and a card edge type connector 12b connected to the measuring section 5 via the high voltage cable 6b are arranged at equal intervals on a straight line. In this case, the high-voltage cables 6a-
6c together with the conductor pattern formed on the substrate 11 constitutes a high-voltage line in the present invention. Also, connector 1
2a to 12c correspond to the first, second and third elements in the present invention.
, And are arranged just below the slit 2b in the measuring device main body 2 as shown in FIG. The substrate 21 corresponds to a second substrate in the present invention. As shown in FIG. 1, one end surface of the substrate 21 is connected to conductor patterns (connection lines) 22c, 22c formed on both surfaces of the substrate 21, respectively. The connected card edge type connectors 22a and 22b are formed. In this case, the connectors 22a, 22b
Correspond to the second and first connection connectors in the present invention, respectively, and the connectors 12a, 1
2b (connectors 12c, 12b) are formed at intervals equal to the intervals between the electrodes, and their respective electrodes are formed on both surfaces of the substrate 21, respectively. On the other end face side of the substrate 21, a decorative panel 23 capable of closing the slit 2b of the measuring device main body 2 is provided.
Are mounted on the surface of the decorative panel 23 at positions where a sufficient creepage distance is secured with respect to the conductor pattern 22c for inserting and removing the substrate 21.

Next, a method of operating the connection switch 3 in the measuring apparatus 1 will be described with reference to FIGS.

In this connection switch 3, one of the high voltage cables 6a and 6c is connected to the high voltage cable 6b by appropriately changing the direction of insertion of the board 21 into the slit 2b.
, Whereby one of the high-pressure probes 4 a and 4 b is connected to the measuring unit 5. Specifically, for example,
When performing voltage measurement on the measurement target signal Sa input to the high-voltage probe 4a, the connectors 22a and 12a face each other and the connectors 22b and 22b, as shown in FIG.
The substrate 21 is inserted into the slit 2b so that the substrates 12b face each other (the first direction in the present invention). Next, the connectors 22a, 22b are pressed into the connectors 12a, 12b by pressing the upper surfaces of the handles 24, 24 downward, and connected. Thereby, the high-voltage cable 6a, the connectors 12a and 22a, the conductor pattern 22c, the connector 2
The high-voltage probe 4a is connected to the measurement unit 5 via the high-voltage cable 6b, and the high-voltage probe 4a is connected to the measurement target signal Sa input to the high-voltage probe 4a.
Further, in this state, the slit 2 b is closed by the decorative panel 23, so that intrusion of dust into the inside of the measuring device main body 2 is prevented.

On the other hand, when voltage measurement is performed on the measurement target signal Sb input to the high voltage probe 4b, as shown in FIG. 4, the connectors 22a and 12c face each other and the connectors 22b and 12b face each other. The substrate 21 is inserted into the slit 2b in the orientation (second orientation in the present invention). Next, the connectors 22a and 22b are pressed down by pressing the upper surfaces of the handles 24 and 24 downward.
2c and 12b to connect. Thereby, the high-voltage cable 6c, the connectors 12c and 22a, the conductor pattern 22c, the connectors 22b and 12b, and the high-voltage cable 6
b, the high-pressure probe 4b and the measuring unit 5 are connected,
The measurement target signal Sb input to the high voltage probe 4b is input to the measurement unit 5. In this state, the first
The slit 2b is closed by the decorative panel 23 in the same manner as in the insertion in the direction of, so that the intrusion of dust into the inside of the measuring device main body 2 is prevented.

As described above, according to the connection switching device 3,
Connectors 12a to 12c connected to the high-voltage cables 6a to 6c
A board 11 having 12c arranged at equal intervals on a straight line and a board having connectors 22a and 22b arranged at an interval equal to the arrangement interval of connectors 12a and 12b (connectors 12c and 12b) and connected to each other via a conductor pattern 22c. 21 so that the substrate 2
1 is pressed in the first direction, the high-voltage cable 6
a, 6b are connected to each other, and the high-voltage cables 6c, 6c are connected together.
b, when the substrate 21 is turned over and pressed in the second direction, the high voltage cables 6c and 6b can be connected to each other and the high voltage cables 6a and 6b can be cut. Therefore, one of the high-voltage probes 4a and 4b can be switched and connected to the measuring unit 5 reliably and easily with a simple configuration. Also, as compared with a conventional connection switch using an expensive high-voltage relay, the cost of parts can be greatly reduced, and as a result, the manufacturing cost of the entire measuring device 1 can be reduced. further,
According to the connection switch 3, unlike a conventional connection switch using a high-voltage relay, a control unit for switching control can be eliminated, so that the entire measuring device 1 is reduced by the manufacturing cost of the control unit. Manufacturing cost can be reduced. Further, according to the measuring device 1, the slit 2b is formed in the measuring device main body 2, and the decorative panel 23 is attached to the upper end of the substrate 21, so that the substrate 21 is mounted on the measuring device main body 2, Since the slit 2b can be closed by the decorative panel 23, it is possible to prevent a failure due to intrusion of dust.

Next, a measuring apparatus 31 according to another embodiment of the present invention will be described with reference to FIG. In addition,
Components having the same functions as those of the measurement device 1 and the connection switch 3 are denoted by the same reference numerals, and redundant description will be omitted.

The measuring device 31 can measure the current value, the voltage value, the electric energy, etc. of the high voltage measuring signals Sa, Sb input through the high voltage probes 4a, 4b in the same manner as the measuring device 1. Is configured. Specifically, the measuring device 31 includes a measuring device main body 32 and a connection switch 3.
3, high-pressure probes 4a and 4b and a measuring unit 5 are provided. In this case, the measuring device main body 32 corresponds to the device main body in the present invention, and houses the connection switch 33, the measuring unit 5, and the like. The connection switch 33 includes substrates 41 and 51, and connects one of the high-voltage probes 4 a and 4 b to the measuring unit 5. In this case, the substrate 41 corresponds to the first substrate in the present invention, and is fixed inside the measuring device main body 32.
The board 41 also includes card edge type connectors 12a and 12d connected to the high voltage probes 4a and 4b via the high voltage cables 6a and 6d, respectively.
Card edge-type connectors 12b and 12c connected to the measuring unit 5 via b and 6c are arranged at regular intervals on a straight line. In this case, the high-voltage cables 6a to 6d constitute a high-voltage line according to the present invention together with the conductor pattern formed on the substrate 41. Also, the connectors 12a to 12
“d” corresponds to the first, second, third, and fourth high-voltage line-side connectors of the present invention, respectively, and is disposed so as to be located immediately below the slit 2b in the measuring device main body 32. The substrate 51 corresponds to a second substrate in the present invention, and has conductor patterns (connection lines) 22c, 2 formed on both sides of the substrate 41 on one end surface thereof.
Card edge type connectors 22 connected to each other at 2c
a, 22b are formed. In this case, the connector 22
Reference numerals a and 22b correspond to the second and first connectors in the present invention, respectively, and are formed at intervals equal to the intervals between the connectors 12a and 12b (connectors 12d and 12c) on the board 41, and their respective electrodes are connected to the board 41. Are formed on both sides.

In the connection switch 33, one of the high-voltage cables 6a and 6d is connected to the high-voltage cable 6 by appropriately changing the direction of insertion of the board 51 into the slit 2b.
b or the high-voltage cable 6c, whereby one of the high-voltage probes 4a and 4b is connected to the measuring unit 5. Specifically, for example, when performing a voltage measurement on the measurement target signal Sa input to the high-voltage probe 4a, the connectors 22a and 12a face each other and the connectors 22b and 12b Insert the substrate 51 into the slit 2b in the direction facing each other (the first direction in the present invention). Next, by pressing the upper surfaces of the handles 24, 24 downward, the connectors 22a, 22b are pressed.
Into the connectors 12a and 12b for connection. Thereby, the high-voltage cable 6a, the connectors 12a and 22a,
The high-voltage probe 4a and the measurement unit 5 are connected via the conductor pattern 22c, the connectors 22b and 12b, and the high-voltage cable 6b, and the measurement target signal Sa input to the high-voltage probe 4a is input to the measurement unit 5.

On the other hand, when measuring the voltage of the measurement target signal Sb input to the high voltage probe 4b, the connectors 22a and 12d face each other and the connectors 22b and 12c The substrate 51 is inserted into the slit 2b in a direction facing each other (a second direction in the present invention). Next, the connectors 22a and 22b are pressed into the connectors 12d and 12c by pressing the upper surfaces of the handles 24 and 24 downward, and connected. As a result, the high-voltage probe 4b and the measuring unit 5 are connected via the high-voltage cable 6d, the connectors 12d and 22a, the conductor pattern 22c, the connectors 22b and 12c, and the high-voltage cable 6c, and the measurement target signal Sb input to the high-voltage probe 4b Is input to the measuring unit 5.

As described above, according to the connection switch 33, the connector 12 connected to the high-voltage cables 6a to 6d
a substrate 41 in which a to 12d are arranged at regular intervals on a straight line,
By providing a substrate 51 having connectors 22a and 22b arranged at intervals equal to the interval between the connectors 12a and 12b (connectors 12d and 12c) and connected to each other via a conductor pattern 22c, 51 is pressed in the first direction, the high-voltage cables 6a and 6b are connected to each other and the high-voltage cables 6a and 6b are connected.
When the substrate 51 is turned upside down and pressed in the second direction, the high voltage cables 6d and 6c can be connected to each other and the high voltage cables 6a and 6b can be disconnected. Therefore, one of the high-voltage probes 4a and 4b can be reliably and easily connected to the measuring unit 5 with a simple configuration. In addition, connection switch 3
Similarly to the above, since an expensive high-voltage relay and a control unit for switching control are not used, the manufacturing cost of the measuring device 31 as a whole can be reduced.

Note that the present invention is not limited to the configuration shown in the above-described embodiment of the present invention. For example, in the embodiment of the present invention, one of the two high-voltage lines is connected to the connection switch 3 that switches and connects one of the two high-voltage lines to one high-voltage line. The connection switch 33 for disconnecting the other connection has been described as an example. However, a plurality of connection switches 3 (or connection switches 33) may be integrally arranged on a straight line, or the connection switches 3 and 33 may be integrated. May be integrally arranged on a straight line. Also,
The measurement unit 5 can be mounted on the substrate 11, or the present invention can be applied to a configuration in which a high-voltage power supply output from a high-voltage power supply device is switched and connected. Further, the connectors 12a-
As 12d, 22a and 22b, normal type connectors can be used instead of the card edge type. In addition, the board 11 in the measuring device 1 is arranged in parallel to the insertion direction of the board 21, and the connectors 12 a to 12 c are connected to the board 1.
1 so that the connector 12a (or 12
c), a configuration capable of connecting the 12b and the connectors 22a, 22b may be adopted. Further, the device equipped with the connection switching device according to the present invention is not limited to the measuring device described in the embodiment of the present invention, and may be mounted on various electronic devices having a plurality of high voltage lines to be switched and connected. it can.

[0024]

As described above, according to the connection switch of the first aspect, the first substrate on which the first to third high-voltage line-side connectors are arranged, and the first substrate with respect to the first substrate. The first and second high-voltage line-side connectors are respectively connected when pressed against each other in the first direction and the second and third high voltages when pressed against each other in the second direction. First and second so that they can be connected to the line side connector, respectively.
And a conventional connection switch using a high-voltage relay by simply changing the orientation of the second substrate and pressing it against the first substrate. In comparison, it is possible to reliably and easily switch the connection state of the high voltage line while having a simple and inexpensive configuration.

According to the connection switch of the second aspect, the first substrate on which the first to fourth high-voltage line-side connectors are arranged is opposed to the first substrate in the first direction. When pressed against the second and first high-voltage line-side connectors, and when pressed against and opposed in the second direction to the third and fourth high-voltage line-side connectors, respectively. A second substrate on which the first and second connection connectors are arranged so as to be connectable,
By simply changing the direction of the second substrate and pressing it against the first substrate, the high voltage can be reliably and easily achieved with a simple and inexpensive configuration as compared with a conventional connection switch using a high voltage relay. The connection state of the line can be switched.

According to the third aspect of the present invention, each of the high-voltage line-side connectors and the two-side connectors is constituted by a card edge type connector. 1st and 2nd
Unlike the connection switching devices mounted on the respective substrates, the configuration can be further simplified, and in addition, the mounting process of the connector arranged on the first substrate or the second substrate can be omitted. The manufacturing cost of the switch can be further reduced.

According to the measuring device of the fourth aspect,
The first substrate is fixed inside the device main body and the insertion hole through which the second substrate can be inserted from the direction perpendicular to the front panel is formed in the device main body. The connection state of the high-voltage line can be reliably and easily switched simply by pressing the second substrate against the first substrate in any direction. Further, the measuring device can be configured at a lower cost as compared with a configuration including a conventional connection switch using a high voltage relay.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a configuration of a measuring device 1 according to an embodiment of the present invention.

FIG. 2 is a plan view of a part of the measuring device main body 2 as viewed from above.

FIG. 3 is a sectional view of the measuring apparatus 1 in a state where the substrate 21 is pressed against the substrate 11 in a first direction.

FIG. 4 is a cross-sectional view of the measuring apparatus 1 in a state where the substrate 21 is pressed against the substrate 11 in a second direction.

FIG. 5 shows a measuring device 31 according to another embodiment of the present invention.
It is sectional drawing of (connection switch 33).

FIG. 6 is a block diagram showing a configuration of a conventional connection switch 71.

[Explanation of symbols]

 1,31 Measuring device 2,32 Measuring device main body 2a Surface panel 2b Slit 3,33 Connection switcher 4a, 4b High voltage probe 5 Measuring unit 6a-6d High voltage cable 11,21,41,51 Substrate 12a-12d, 22a, 22b Connector 22c Conductive pattern 23 Decorative panel 24 Handle Sa, Sb Measurement target signal

Claims (4)

[Claims] A first substrate on which first, second, and third high-voltage line connectors connected to first, second, and third high-voltage lines separated from each other are arranged; A first connection connector connected to a second high-voltage line connector and a second connection connector connected to the first high-voltage line connector or the third high-voltage line connector; And a second substrate on which a connection pattern for connecting the first and second connection connectors to each other is formed, the connection switch being configured to include the first to third connectors. The high-voltage line-side connector is disposed on the first substrate such that a distance between the first and second high-voltage line-side connectors and a distance between the second and third high-voltage line-side connectors are equal. And the first and second The connector, when the second substrate was pressed so as to face in a first orientation relative to the first substrate,
When the second board is connected to the second and first high-voltage line-side connectors, respectively, and the second board is pressed against the first board in a second direction, the second board is pressed. A connection switch disposed on the second substrate so as to be connectable to the third high-voltage line-side connector. 2. The first, second, and third high voltage lines respectively connected to first, second, third, and fourth high voltage lines separated from each other.
A first substrate on which third and fourth high-voltage line-side connectors are arranged; and a first connection connector connected to the second high-voltage line-side connector or the third high-voltage line-side connector And the first high voltage line side connector or the fourth
And a second board on which a connection pattern for connecting the first and second connection connectors to each other is formed, and a second connection connector connected to the high-voltage line side connector is arranged. Wherein the first to fourth high-voltage line-side connectors are arranged between the first and second high-voltage line-side connectors and the third and fourth high-voltage lines. The distance between the line-side connectors and the distance between the line-side connectors are arranged at equal intervals on the first board, and the first and second connectors are arranged so that the second board is oriented in a first direction with respect to the first board. When pressed against each other,
When the second substrate is connected to the second and first high-voltage line side connectors, respectively, and the second substrate is pressed against the first substrate in a second direction, the third substrate is pressed.
And a connection switch disposed on the second board so as to be connectable to the fourth high-voltage line-side connector. 3. The connection switch according to claim 1, wherein each of the high-voltage line-side connector and the two-side connection connector is configured by a card edge type connector. 4. A connection switch according to claim 1, further comprising: an apparatus main body, wherein the first substrate is fixed inside the apparatus main body, and the apparatus main body includes A measuring apparatus, wherein an insertion hole through which the second substrate can be inserted from a direction perpendicular to a front panel is formed.