JP2017195091A - Changeover switch - Google Patents

Abstract

A switching switch capable of forming a circuit for switching between a commercial power supply and a distributed power supply in a narrow space is provided. SOLUTION: By tilting an operation handle 11 arranged on the upper surface of a housing 10 between the front and the rear, movable contacts 15 arranged in the housing 10 are arranged in a pair arranged in front and behind the movable contacts 15. Selectively tilts between the fixed contacts 17 to contact one of them to switch the connection destination of the movable contact, and the first circuit connection terminal 12 connected to one fixed contact 17a and the other fixed contact The second circuit connection terminal 13 connected to the contact 17b is arranged in front of the housing 10 with respect to the operating handle 11, while the third circuit connection terminal 14 connected to the movable contact 15 is connected to the branch breaker 2 plug. A copper bar type terminal that enables connection of the in-type primary side terminal 21 and is arranged on the rear surface of the housing 10 . [Selection drawing] Fig. 4

Description

  The present invention relates to a switching switch that selects and connects one of two circuits to one circuit.

  There is a distribution board that can reduce the occurrence of failures and damage due to power outages by switching the power supply of specific electric devices such as emergency lights and refrigerators from a commercial power source to a distributed power source such as a storage battery when a power outage occurs. For example, in Patent Document 1, when a switching switch is installed in a distribution board and a power failure occurs, a specific electric device can be switched from a commercial power source to a distributed power source such as a storage battery, and can continue to operate.

JP 2016-39755 A

The distribution board disclosed in Patent Document 1 is configured to switch power by a switching switch for a specific load connected to both a commercial power source and a distributed power source. A large installation space was required for the wiring of the secondary side electric circuit.
Therefore, the distribution board has become large, and in some cases, it is housed in a distribution board case separated by a circuit dedicated to commercial power supply and a specific load circuit that can supply power from both the commercial power supply and distributed power supply. It was.

  In view of the above problems, the present invention has an object to provide a switching switch that can form a circuit for switching between a commercial power source and a distributed power source such as a storage battery in a narrow space.

In order to solve the above-mentioned problem, the invention according to claim 1 is configured such that the movable contact disposed in the housing is movable within the housing by tilting the operation handle disposed on the upper surface of the housing between the front and the rear. A switching switch for selectively tilting between a pair of fixed contacts arranged before and after the contact and contacting one of them to switch the connection destination of the movable contact, the first being connected to one of the fixed contacts The circuit connection terminal and the second circuit connection terminal connected to the other fixed contact are arranged in front of the housing with respect to the operation handle, while the third circuit connection terminal connected to the movable contact is connected to the branch breaker. A copper bar type terminal enabling connection of a plug-in type primary side terminal, which is arranged on the back surface of the housing.
According to this configuration, since the branch breaker can be directly connected to the switching switch, there is no need to provide a secondary circuit from the switching switch to the branch breaker, greatly increasing the distribution path space associated with the installation of the switching switch. Can be reduced.

According to a second aspect of the present invention, in the configuration of the first aspect, the first to third circuit connection terminals, the movable contact, and the pair of fixed contacts are configured in triplicate and correspond to a single-phase three-wire electric circuit. The three copper bar-type terminals constituting the third circuit connection terminal are arranged so as to overlap each other, and each of them is formed wide so that a plurality of branch breakers can be connected adjacently.
According to this configuration, the switching switch can be assembled in a space-saving residential distribution board that branches by pulling a single-phase three-wire circuit, and multiple branch breakers can be directly connected, greatly reducing the installation space. it can.

  According to the present invention, since the branch breaker can be directly connected to the switching switch, it is not necessary to arrange the secondary side circuit from the switching switch to the branch breaker, greatly increasing the distribution path space associated with the installation of the switching switch. Can be reduced.

It is a perspective view which shows an example of the switching switch which concerns on this invention, and has shown adding the branch breaker connected. It is a top view of a switching switch, and shows the addition of a branch breaker to be connected. It is an internal circuit diagram. It is AA sectional view. It is a BB sectional view. It is CC sectional view taken on the line. It is CC sectional view taken on the line which connected the switching switch to one side.

Embodiments of the present invention will be described in detail with reference to the drawings. The perspective view of FIG. 1 and the plan view of FIG. 2 show an example of the switching switch according to the present invention, and show a branch breaker (specific branch breaker) connected to the secondary side. Reference numeral 1 denotes a switching switch, and 2 a branch breaker, which shows a configuration used for a single-phase three-wire electric circuit. Note that FIG. 1 and FIG.
The switching switch 1 is provided with an operation handle 11 for switching operation on the upper surface of the housing 10, and is connected to one fixed contact 7 </ b> A of a pair of fixed contacts 7, which will be described later, in front of the housing 10 (left side shown in FIG. 1). The first circuit connection terminal 12 (first voltage electrode terminal 12a, neutral electrode terminal 12b, second voltage electrode terminal 12c) and the second circuit connection terminal 13 (first voltage) connected to the other fixed contact 7B. A third terminal terminal 13a, a neutral terminal 13b, a second voltage terminal 13c), and a third circuit connection terminal 14 connected to a movable contact 5 described later on the back surface of the housing 10 (right side shown in FIG. 1). (First voltage electrode terminal 14a, neutral electrode terminal 14b, second voltage electrode terminal 14c) are arranged. Reference numeral 5 denotes a terminal cover for protecting the terminals.

  The first and second circuit connection terminals 12 and 13 are screw-type terminals for connecting and fixing cables (not shown) with screws 6, and are connected in series in the left-right direction, as shown in FIG. 12a, 13a, neutral electrode terminals 12b, 13b, second voltage electrode terminals 12c, 13c are arranged in this order. On the other hand, each of the third circuit connection terminals 14 is a horizontally long copper bar type terminal, and three copper bar type terminals are arranged side by side in the vertical direction, and the neutral electrode terminal 14b and the first voltage extreme are arranged from above. A child 14a and a second voltage electrode terminal 14c are arranged. The copper bar-type terminal of the third circuit connection terminal 14 is formed wide so that a plurality of branch breakers 2 can be connected adjacently.

  The branch breaker 2 is schematically shown, and an operation lever for opening and closing and a secondary terminal are omitted. However, the primary side terminal 21 is a plug-in type terminal formed with a notch in the lateral direction on the back surface (left side in FIG. 1) of the branch breaker 2 as shown in FIG. The copper bar type terminal (third circuit connection terminal 14) thus formed is sandwiched and connected from above and below. The primary side terminal 21 is composed of three terminals, which are arranged from the top to the neutral electrode terminal 21b, the first voltage electrode terminal 21a, and the second voltage electrode terminal 21c. It is configured to be directly connectable, that is, the back surfaces of each other can be connected.

FIG. 3 is an internal circuit diagram of the switching switch 1. As shown in FIG. 3, each connection terminal 12 (12a-12c), 13 (13a-13c), 14 (14a-14c) is comprised by 3 series. Then, the third circuit connection terminal 14 performs switching connection between the first circuit connection terminal 12 and the second circuit connection terminal 13 by operating the operation handle 11, and has three postures including a neutral open state that is not connected. It is selectable.
Specifically, when the switching switch 1 is used in a circuit that switches the power source from a commercial power source to a storage battery in the event of a power failure, a load (specific load) is connected to the third circuit connection terminal 14 via a branch breaker (specific branch breaker) 2. The connected circuit is connected, and the commercial power supply circuit connected to the commercial power supply is connected to the first circuit connection terminal 12. Then, a storage battery system circuit including a storage battery is connected to the second circuit connection terminal 13 via an earth leakage breaker, and the power supply is switched by operating the operation handle 11. The connection between the commercial power supply circuit and the storage battery system circuit may be reversed.

4-7 is sectional drawing which cut | disconnected the switching switch 1 in a different site | part, Hereinafter, an internal structure and operation | movement are demonstrated with reference to this figure. 4 is a cross-sectional view taken along line AA of FIG. 2 and shows an internal connection structure of the three first voltage electrode terminals 12a, 13a, and 14a.
As shown in FIG. 4, a movable contact 16 provided with movable contacts 15 on both front and rear sides is arranged in the housing 10 so as to hang down at the lower part of the operation handle 11, and a pair of fixed contacts 17 (17Aa, 17Bb) is arranged. The movable contact 15 is connected to the first voltage electrode terminal 14a of the third circuit connection terminal 14 via the movable contact 16a and the flexible conductive wire 18 connected to the movable contact 16a, and one fixed disposed at the rear. The contact point 17Aa is connected to the first voltage electrode terminal 12a of the first circuit connection terminal 12 via the copper bar 7a, and the other fixed contact point 17Ba arranged in front is connected to the second circuit connection terminal 13 via the copper bar 7b. It is connected to the first voltage electrode terminal 13a.

FIG. 5 is a cross-sectional view taken along line B-B and shows an internal connection structure of three neutral electrode terminals 12b, 13b, and 14b. As shown in FIG. 5, the movable contact 16b provided with the movable contact 5 is disposed so as to hang down at the lower part of the operation handle 11, and a pair of fixed contacts 17 (17Ab, 17Bb) are disposed on the front and back thereof.
Similar to the terminal structure of the first voltage electrode described above, the movable contact 15 is connected to the neutral electrode terminal 14 b of the third circuit connection terminal 14 via the movable contact 16 b and the flexible conductive wire 18. Then, one fixed contact 17Ab arranged at the rear is connected to the neutral electrode terminal 12b of the first circuit connection terminal 12 via the copper bar 7a, and the other fixed contact 17Bb arranged at the front is connected to the copper bar 7b. To the neutral electrode terminal 13 b of the second circuit connection terminal 13.

FIG. 6 is a cross-sectional view taken along the line C-C and shows an internal connection structure of the three second voltage electrode terminals 12c, 13c, and 14c. As shown in FIG. 6, the movable contact 16c provided with the movable contact 15 is disposed so as to hang down at the lower part of the operation handle 11, and a pair of fixed contacts 17 (17Ac, 17Bc) are disposed on the front and back thereof.
Similar to the structure of the first voltage electrode described above, the movable contact 15 is connected to the second voltage electrode terminal 14 c of the third circuit connection terminal 14 via the movable contact 16 c and the flexible conductive wire 18. And one fixed contact 17Ac arrange | positioned back is connected to the 2nd voltage pole terminal 12c of the 1st circuit connection terminal 12 via the copper bar 7a, and the other fixed contact 17Bc arrange | positioned ahead is the copper bar 7b. To the second voltage electrode terminal 13 c of the second circuit connection terminal 13.

  The switching switch 1 configured as described above is switched as follows. The movable contact 16 is configured to rotate back and forth by the operation of the operation handle 11. When the operation handle 11 is tilted forward, the movable contact 16 is also rotated forward, and when the operation handle 11 is tilted rearward, the rear To turn. As a result, the movable contact 15 is selectively connected to one fixed contact 17 by operating the operation handle 11. For example, when the operation handle 11 is tilted to the right (front) shown in FIG. 2, the movable contact 5 comes into contact with the front fixed contact 17B and the second circuit connection terminal 13 and the third circuit connection terminal 14 are connected. . FIG. 7 is a cross-sectional view taken along the line C-C in this connected state, that is, a state in which the operation handle 11 is tilted forward.

Since the branch breaker 2 can be directly connected to the switching switch 1 in this way, it is not necessary to provide a secondary side electric circuit from the switching switch 1 to the branch breaker 2, and the distribution circuit associated with the installation of the switching switch 1 is not necessary. Installation space can be greatly reduced.
In addition, since a plurality of branch breakers 2 can be connected by assembling a single-phase three-wire electric circuit into a residential distribution board that branches off, even if there are a plurality of branch electric circuits capable of switching power, the switching switch 1 The installation space for the distribution line can be greatly reduced.

  In addition, although the said embodiment showed the structure used for a single-phase three-wire electric circuit, it can apply also to a three-phase three-wire electric circuit, and can apply also to a single-phase two-wire electric circuit. .

  1..Switching switch 2..Branch breaker 10..Housing 11 .... Operating handle 12 .... First circuit connecting terminal 13 .... Second circuit connecting terminal 14 .... Third circuit connecting terminal , 15 .. movable contact, 16 .. movable contact, 17 .. fixed contact, 21 .. primary side terminal.

Claims (2)

The movable contact disposed in the housing is moved between the pair of fixed contacts disposed before and after the movable contact in the housing by tilting the operation handle disposed on the upper surface of the housing between the front and the rear. A switching switch that selectively tilts and touches one of them to switch the connection destination of the movable contact,
While the first circuit connection terminal connected to one fixed contact and the second circuit connection terminal connected to the other fixed contact are arranged in front of the housing with respect to the operation handle,
The third circuit connection terminal connected to the movable contact is a copper bar-type terminal that enables connection of a plug-in type primary terminal of a branch breaker, and is arranged on the back surface of the housing. Switching switch to be. The first to third circuit connection terminals, the movable contact, and the pair of fixed contacts are configured in triplicate and correspond to a single-phase three-wire electric circuit,
The three copper bar-type terminals constituting the third circuit connection terminal are arranged so as to overlap each other, and are formed to be wide so that a plurality of the branch breakers can be connected adjacently. The switching switch according to claim 1.

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