CN111755290B - Connect conversion adapter and electrical equipment - Google Patents

Connect conversion adapter and electrical equipment Download PDF

Info

Publication number
CN111755290B
CN111755290B CN202010207797.8A CN202010207797A CN111755290B CN 111755290 B CN111755290 B CN 111755290B CN 202010207797 A CN202010207797 A CN 202010207797A CN 111755290 B CN111755290 B CN 111755290B
Authority
CN
China
Prior art keywords
cover
terminal
adapter
adapter body
terminal cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010207797.8A
Other languages
Chinese (zh)
Other versions
CN111755290A (en
Inventor
小樋悠太
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN111755290A publication Critical patent/CN111755290A/en
Application granted granted Critical
Publication of CN111755290B publication Critical patent/CN111755290B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/20—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

Landscapes

  • Breakers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

连接变换适配器(1)具有适配器主体(2)和板状的端子罩(3)。适配器主体(2)具有与电气设备的螺钉端子(101)连接的设备连接部、以及与导电部件连接的导体连接部。端子罩(3)在适配器主体(2)安装于电气设备的状态的情况下，将螺钉端子(101)的上方覆盖。端子罩(3)在与电气设备的排气口(105)相比前端位于下方且从基端朝向前端向下方倾斜的状态下，将基端侧安装于适配器主体(2)。

A connection conversion adapter (1) comprises an adapter body (2) and a plate-shaped terminal cover (3). The adapter body (2) comprises an equipment connection portion connected to a screw terminal (101) of an electrical device, and a conductor connection portion connected to a conductive component. When the adapter body (2) is mounted on the electrical device, the terminal cover (3) covers the upper portion of the screw terminal (101). The terminal cover (3) is mounted on the adapter body (2) with the base end side thereof being located below the exhaust port (105) of the electrical device and being tilted downward from the base end toward the front end.

Description

Connection conversion adapter and electrical device
Technical Field
The present invention relates to a connection conversion adapter for converting a connection system to an electrical device, and to an electrical device.
Background
Conventionally, in electrical devices such as circuit breakers and shutters, a screw terminal type connection method for connecting wires by screw terminals has been the mainstream method, but sometimes, for the purpose of alignment, design surface, construction saving, and the like, a connection method such as a plug-in type, a solderless terminal type, or a quick-connect terminal type is adopted.
In the case where an electrical device is required to be compatible with a plurality of connection methods, a connection conversion adapter having a connection portion to a screw terminal on one side and a terminal of a connection method different from that of a screw on the other side may be used from the viewpoint of reducing investment, man-hour, and the like.
For example, patent document 1 proposes a connection conversion adapter having an electrical device connection portion connected to a screw terminal of an electrical device and a conductive rod connection portion interposed between the connection conversion adapter and a conductive rod. In this connection conversion adapter, a gas release passage is formed so as to face an exhaust port formed in an end face of the electrical device, and gas exhausted from the exhaust port of the electrical device can be discharged to the outside through the gas release passage.
Patent document 1 Japanese patent laid-open No. 11-126669
However, the connection conversion adapter described in patent document 1 is configured to form a gas release passage in a space below the screw terminal, and cannot be applied to an electric device in which a vent is provided at a position facing the space above the screw terminal.
Disclosure of Invention
The present invention has been made in view of the above circumstances, and an object thereof is to provide a connection conversion adapter capable of discharging gas discharged from an exhaust port of an electrical device provided at a position facing an upper space of a screw terminal to the outside.
In order to solve the above-described problems and achieve the object, a connection conversion adapter according to the present invention includes an adapter body and a plate-shaped terminal cover. The adapter body has a device connection portion connected to a screw terminal of the electrical device, and a conductor connection portion connected to the conductive member. The terminal cover covers the screw terminal in a state where the adapter body is mounted on the electrical device. The terminal cover is attached to the adapter body at a base end side in a state where a tip end is located below an exhaust port of the electrical device and is inclined downward from the base end toward the tip end.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, the gas discharged from the gas outlet of the electric device provided at the position facing the upper space of the screw terminal can be discharged to the outside.
Drawings
Fig. 1 is an external oblique view showing a state before a connection conversion adapter according to embodiment 1 of the present invention is connected to a circuit breaker.
Fig. 2 is an external oblique view of the adapter body according to embodiment 1.
Fig. 3 is a view of the adapter body according to embodiment 1 as viewed from the direction of the arrow shown in fig. 2.
Fig. 4 is an external oblique view of the terminal cover according to embodiment 1.
Fig. 5 is an external oblique view of the terminal cover according to embodiment 1.
Fig. 6 is a diagram for explaining a method of attaching a terminal cover to an adapter body to which the circuit breaker according to embodiment 1 is attached.
Fig. 7 is an external perspective view showing a state in which a connection conversion adapter is attached to the circuit breaker according to embodiment 1.
Fig. 8 is a plan view showing a state in which a connection conversion adapter is attached to the circuit breaker according to embodiment 1.
Fig. 9 is a cross-sectional view taken along line IX-IX shown in fig. 8.
Fig. 10 is a diagram for explaining a function of discharging gas to the outside in the terminal cover according to embodiment 1.
Fig. 11 is an external oblique view of an adapter body in the connection conversion adapter according to embodiment 2 of the present invention.
Fig. 12 is an external perspective view of 1 type of connection conversion module among the plurality of types of connection conversion modules constituting the adapter body shown in fig. 11.
Description of the reference numerals
1. The conversion adapter includes a 1A connection conversion adapter body, a3 terminal cover, a 3a surface, 5 screws, 6 arcs, 7 arc gases, a 9 extension line, a 21 equipment connection portion, a 21A terminal, a 22 conductor connection portion, a 22A opening, a 23 mounting protrusion, a 24 inclined surface, a 25 cover mounting groove, a 26 cover engagement portion, a 26a extension portion, a 26b, a 27a protruding portion, a 27 engagement portion cover, 27b, a 32 cover portion, 28a, 28b, 28c connection conversion modules, a 29 body cover, a 31 base portion, a 100 circuit breaker, a 100a bottom surface, a 101 screw terminal, a 102 mounting groove, a 104 arc extinguishing chamber, 105 exhaust ports, 106 movable contacts, 107 fixed contacts, 311, 322 guide grooves, 321 electricity inspection holes, 323 engagement portions, a arrow, and θ angles.
Detailed Description
The connection conversion adapter and the electrical device according to the embodiment of the present invention will be described in detail below with reference to the drawings. The present invention is not limited to the present embodiment.
Embodiment 1.
Fig. 1 is an external oblique view showing a state before a connection conversion adapter according to embodiment 1 of the present invention is connected to a circuit breaker. The circuit breaker will be described below as an electrical device to which the connection conversion adapter according to embodiment 1 is attached, but the electrical device to which the connection conversion adapter is attached is not limited to the circuit breaker.
As shown in fig. 1,2 connection conversion adapters 1 are mounted on a circuit breaker 100. Specifically, one of the 2 connection conversion adapters 1 is attached to the power supply side of the circuit breaker 100 by connecting the connection conversion adapter 1 to the screw terminal 101 on the power supply side of the circuit breaker 100. The other connection conversion adapter 1 is attached to the load side of the circuit breaker 100 by being connected to the screw terminal 101 on the load side of the circuit breaker 100.
Screw terminals 101 are formed with screw holes into which screws 5 are fitted, and the connection conversion adapter 1 is fitted to the circuit breaker 100 by the screws 5. In fig. 1, a screw 5 attached to a screw terminal 101 on the load side of a circuit breaker 100 by one connection conversion adapter 1 is shielded by the circuit breaker 100, and a screw terminal 101 on the power supply side in the circuit breaker 100 is shielded by the circuit breaker 100.
The circuit breaker 100 performs connection and disconnection of a circuit between the screw terminal 101 on the power supply side and the screw terminal 101 on the load side. For example, the circuit breaker 100 sets the circuit to an open state when an overcurrent or a short-circuit current flows through the circuit. The screw terminal 101 on the power supply side is a terminal connected to the power supply, and the screw terminal 101 on the load side is a terminal connected to the load. The circuit breaker 100 shown in fig. 1 is a 3-pole circuit breaker, and a mounting groove 102 extending in the vertical direction in fig. 1 is formed in each of the inter-pole regions on the power supply side and the load side.
The connection conversion adapter 1 includes an adapter body 2 and a plate-shaped terminal cover 3 covering the screw terminals 101 of the circuit breaker 100. The terminal cover 3 is attached to the adapter body 2 in a state where the adapter body 2 is attached to the circuit breaker 100.
First, the structure of the adapter body 2 will be described. Fig. 2 is an external oblique view of the adapter body according to embodiment 1. Fig. 3 is a view of the adapter body according to embodiment 1 as viewed from the direction of the arrow shown in fig. 2.
As shown in fig. 2, the adapter main body 2 has a plurality of device connection portions 21 having terminals 21a, the terminals 21a forming holes into which screws 5 are inserted and being fastened to screw terminals 101 by the screws 5, and a plurality of conductor connection portions 22 connected to conductive members such as electric wires or bus bars, respectively. The terminal 21a of the device connection portion 21 is electrically connected to a conductor, not shown, provided in the conductor connection portion 22. Further, the terminal 21a of the device connection portion 21 and the conductor provided in the conductor connection portion 22 may be integrally formed.
Each conductor connecting portion 22 is a quick-connection terminal type connecting portion that connects a conductor, not shown, disposed inside and an electric wire inserted from an opening 22a of the conductor connecting portion 22, but is not limited to the quick-connection terminal type connecting portion. For example, each conductor connecting portion 22 may be a plug-in type connecting portion or a solderless terminal type connecting portion.
As shown in fig. 2, in the adapter body 2, a mounting protrusion 23 is provided, and the mounting protrusion 23 is an interelectrode region and protrudes in a direction in which the terminal 21a protrudes. The mounting convex portions 23 are disposed between the adjacent terminals 21 a. When the adapter body 2 is mounted on the circuit breaker 100, the mounting protrusion 23 is inserted into the mounting groove 102 of the circuit breaker 100, and the mounting protrusion 23 engages with the mounting groove 102.
As described above, the mounting boss 23 and the mounting groove 102 are engaged with each other in addition to the fastening of the terminal 21a and the screw terminal 101 by the screw 5, whereby the adapter main body 2 is more firmly fixed to the circuit breaker 100. Further, by adjusting the dimensional relationship between the mounting projection 23 and the mounting groove 102, the fixing force of the adapter main body 2 to the circuit breaker 100, the assembling property, and the like can be adjusted.
As shown in fig. 2, the adapter body 2 includes an inclined surface 24 inclined downward, and a pair of cover mounting grooves 25 formed at both side ends of the inclined surface 24. The pair of cover mounting grooves 25 are inserted into both side ends of the terminal cover 3 when the terminal cover 3 is mounted on the adapter body 2, and guide the terminal cover 3 of the adapter body 2 together with the inclined surface 24.
The adapter body 2 further includes a plurality of cover engaging portions 26 extending from the region including the inclined surface 24 in the direction of the inclined surface 24 and engaged with the terminal cover 3, and a plurality of engaging portion covers 27 covering upper sides of the corresponding cover engaging portions 26 among the plurality of cover engaging portions 26.
As shown in fig. 2 and 3, the plurality of cover engaging portions 26 are arranged in a direction in which the pair of cover mounting grooves 25 face each other. In the example shown in fig. 2 and 3, the cover engaging portion 26 is provided for each pole. Each cover engagement portion 26 has an extension portion 26a extending from the base end toward the front end in the insertion direction of the terminal cover 3, and a projection portion 26b projecting from the front end of the extension portion 26a toward the insertion direction of the terminal cover 3. The shape of the cover engagement portion 26 is also referred to as a snap shape.
The engaging portion cover 27 has a function of covering the cover engaging portion 26 in a state where the terminal cover 3 is attached to the adapter main body 2, and preventing contact to the cover engaging portion 26 from the outside. The engaging portion cover 27 also has a function of preventing the terminal cover 3 from being detached from the adapter main body 2 when a force acts on the plate surface of the terminal cover 3, for example.
The engaging portion cover 27 has a protruding portion 27a whose base end is continuous with the inclined surface 24 and protrudes in a direction orthogonal to or intersecting the inclined surface 24, and a cover portion 27b which is continuous with the tip end of the protruding portion 27a, faces the cover engaging portion 26, and covers the cover engaging portion 26.
Next, the structure of the terminal cover 3 will be described. Fig. 4 and 5 are perspective views showing the appearance of a terminal cover according to embodiment 1. As shown in fig. 4 and 5, the terminal cover 3 includes a base portion 31 extending in the pole arrangement direction, and a plurality of cover portions 32 disposed at intervals in the pole arrangement direction and protruding from the base portion 31 in a direction orthogonal to the pole arrangement direction. The pole arrangement direction is a direction in which the pair of cover mounting grooves 25 face each other in a state where the terminal cover 3 is mounted to the adapter main body 2.
A plurality of guide grooves 311 are formed in the base portion 31, which are inserted by a plurality of projections 27a formed in the adapter body 2 when the terminal cover 3 is mounted to the adapter body 2.
Each cover portion 32 covers the upper side of a corresponding screw terminal 101 among the plurality of screw terminals 101 in the circuit breaker 100. A hole for checking electricity 321, which is a hole for checking the voltage of the screw terminal 101, is formed in the tip end portion of each cover portion 32. A guide groove 322 is formed in a middle portion of each cover portion 32, and the guide groove 322 guides the protruding portion 27a of the adapter body 2 when the terminal cover 3 is attached to the adapter body 2. Further, an engaging portion 323 is formed at the base end portion of each cover portion 32, and the engaging portion 323 engages with a cover engaging portion 26 formed in the adapter main body 2.
The terminal cover 3 is, for example, a 1-piece member made of a plate-like resin having a certain thickness. The terminal cover 3 is not limited to the shape shown in fig. 4 and 5, and may be any structure having the electricity test hole 321, the guide groove 322, and the engagement portion 323, and may be appropriately changed according to the shapes of the connection conversion adapter 1 and the circuit breaker 100.
The thickness of the terminal cover 3 shown in fig. 4 and 5 is constant and is symmetrical left and right, and therefore the front and rear sides are not distinguished. Therefore, the possibility of mounting the terminal cover 3 in a state of being erroneously mounted to the adapter main body 2 can be greatly reduced. The terminal cover 3 is made of a plate-like resin member. For example, the terminal cover 3 is formed by punching a plate-like resin laminate material. The terminal cover 3 is not limited to the resin laminate material subjected to the punching process, and may be, for example, a molded product.
Next, a method of attaching the terminal cover 3 to the adapter body 2 will be described. Fig. 6 is a diagram for explaining a method of attaching a terminal cover to an adapter body to which the circuit breaker according to embodiment 1 is attached.
As shown in fig. 6, when the terminal cover 3 is attached to the adapter body 2 in a state of being attached to the circuit breaker 100, both side ends of the terminal cover 3 are inserted into the pair of cover attaching grooves 25 of the adapter body 2, and move in a direction along the extending direction of the cover attaching grooves 25. Thereby, the terminal cover 3 is attached to the adapter body 2.
The state shown in fig. 6 is a state in which the plurality of cover engaging portions 26 formed in the adapter main body 2 shown in fig. 2 and 3 are engaged with the plurality of engaging portions 323 of the terminal cover 3 shown in fig. 4 and 5. The state shown in fig. 6 is a state in which the plurality of projections 27a formed in the adapter body 2 shown in fig. 2 and 3 are inserted into the plurality of guide grooves 311 of the terminal cover 3 shown in fig. 4 and 5.
When the terminal cover 3 is attached to the adapter body 2, the terminal cover 3 is guided by the cover attachment groove 25, so that the attachment of the terminal cover 3 to the adapter body 2 is a simple insertion operation, and the time required for this operation is short.
Next, a state in which the terminal cover 3 is attached to the adapter body 2 will be described. Fig. 7 is an external perspective view showing a state in which a connection conversion adapter is attached to the circuit breaker according to embodiment 1. Fig. 8 is a plan view showing a state in which a connection conversion adapter is attached to the circuit breaker according to embodiment 1. Fig. 9 is a cross-sectional view taken along line IX-IX shown in fig. 8. Fig. 10 is a diagram for explaining a function of discharging gas to the outside in the terminal cover according to embodiment 1.
As shown in fig. 7 and 8, in a state in which the circuit breaker 100 is mounted with the connection conversion adapter 1, the engagement portion 323 of the terminal cover 3 is engaged with the cover engagement portion 26 of the adapter main body 2 as shown in fig. 9. Therefore, movement of the terminal cover 3 in the direction opposite to the direction indicated by the arrow a shown in fig. 2, that is, in the removal direction is restricted by the cover engaging portion 26.
When the terminal cover 3 is mounted to the adapter body 2 in a state of being mounted to the circuit breaker 100, the extension portion 26a of the cover engagement portion 26 is deflected toward the screw 5 side with the insertion of the terminal cover 3, and the protruding portion 26b of the cover engagement portion 26 is restored to its original shape by passing over the engagement portion 323 of the terminal cover 3. Thus, the engaging portion 323 of the terminal cover 3 engages with the protruding portion 26b of the cover engaging portion 26, which becomes an obstacle to the movement of the terminal cover 3 in the removal direction, and prevents the terminal cover 3 from being detached from the adapter main body 2.
In order to make the cover engagement portion 26 function as a drop-off prevention portion, a sufficient amount of deflection is required for the extension portion 26a that becomes a beam, but if the portion of the cover engagement portion 26 that becomes a deflected beam is short, there is a possibility that the stress limit will be exceeded when the extension portion 26a of the cover engagement portion 26 deflects. Therefore, the extension portion 26a needs to be lengthened to some extent so as not to exceed the stress limit, but if the extension portion 26a is extended long in parallel with the bottom surface 100a of the circuit breaker 100, the size of the connection conversion adapter 1 needs to be increased.
Therefore, in the connection conversion adapter 1 according to embodiment 1, as shown in fig. 10, the insertion direction of the terminal cover 3 is inclined by an angle θ with respect to a plane parallel to the bottom surface 100a of the circuit breaker 100, and the extension 26a in the cover engagement portion 26 extends in an oblique direction by the angle θ. As a result, the insertion direction of the terminal cover 3 can be shortened by the amount of "L-Lcos θ" in the direction parallel to the bottom surface 100a of the circuit breaker 100, as compared with the case where the insertion direction is parallel to the bottom surface 100a of the circuit breaker 100. Further, "L" is the length of the terminal cover 3 in the insertion direction of the terminal cover 3. Therefore, the connection conversion adapter 1 can be prevented from becoming large. The angle θ is not limited to the angle shown in fig. 10.
The cover engagement portion 26 is formed on the surface 3a side of the terminal cover 3 facing the screw terminal 101, and the cover engagement portion 26 is located at a position where contact from the outside is difficult. Therefore, the terminal cover 3 can be prevented from being pulled out while the cover engagement portion 26, which is the anti-disengagement portion, is pressed from above, and the connection conversion adapter 1 can be further prevented from being detached from the circuit breaker 100.
The cover portion 27b of the engaging portion cover 27 is disposed at a position covering the upper side of the cover engaging portion 26, so as to prevent contact with the cover engaging portion 26. Therefore, the terminal cover 3 can be further prevented from being pulled out while the cover engagement portion 26 is pushed from above to be deflected, and the connection conversion adapter 1 can be further prevented from being detached from the circuit breaker 100.
In addition, the guide groove 311 of the terminal cover 3 is inserted by the projection 27a of the engaging portion cover 27 in the adapter main body 2, and therefore the movement of the terminal cover 3 in the direction indicated by the arrow a shown in fig. 2 is restricted by the projection 27 a.
As shown in fig. 9, when the circuit breaker 100 is mounted with the connection conversion adapter 1, a part of each cover portion 32 in the terminal cover 3 faces the cover portion 27b of the engagement portion cover 27 in the adapter body 2. Therefore, the movement of the terminal cover 3 in the up-down direction is restricted by the cover portion 27b of the engaging portion cover 27 in addition to the cover mounting groove 25.
In a state where the connection conversion adapter 1 is mounted to the circuit breaker 100, as shown in fig. 9, the connection conversion adapter 1 is connected to the screw terminal 101 by the screw 5, and the cover portion 32 of the terminal cover 3 covers the screw terminal 101 to which the screw 5 is mounted. Accordingly, access to the screw 5 by a detaching tool such as a screwdriver is prevented in a state where the circuit breaker 100 is mounted with the connection conversion adapter 1. In addition, contact of a finger or the like with the screw 5 or the screw terminal 101 is prevented in a state where the circuit breaker 100 is mounted with the connection conversion adapter 1.
The terminal cover 3 can discharge the gas discharged from the gas outlet 105 of the circuit breaker 100 provided at a position facing the upper space of the screw terminal 101 to the outside. Next, a function of exhausting the gas in the terminal cover 3 to the outside will be described.
As shown in fig. 10, the circuit breaker 100 includes, on the power supply side, a movable contact 106 and a fixed contact 107 for connection and disconnection of a circuit, and an arc extinguishing chamber 104 for extinguishing an arc 6 generated between the movable contact 106 and the fixed contact 107. The arc 6 is generated when the circuit is broken, for example.
Since the arc extinguishing chamber 104 generates the arc gas 7 by the arc 6 when extinguishing the arc 6, the circuit breaker 100 is provided with an exhaust port 105 adjacent to the arc extinguishing chamber 104, and the exhaust port 105 is used to release the arc gas 7 to the outside of the circuit breaker 100.
Here, if an obstacle is present at a position facing the exhaust port 105, the arc gas 7 cannot be sufficiently exhausted to the outside, and there is a possibility that the breaking performance of the circuit breaker 100 may deteriorate or the insulation performance may deteriorate. Accordingly, in the connection conversion adapter 1, as shown in fig. 10, the insertion direction of the terminal cover 3 is set to be inclined, and the terminal cover 3 is attached to the adapter body 2 with the tip of the terminal cover 3 positioned below the exhaust port 105. Thus, the exhaust port 105 is located on the upper open side than the extension line 9 in the insertion direction of the terminal cover 3. Therefore, a gas release path can be ensured at a position facing the exhaust port 105, and deterioration of the breaking performance of the circuit breaker 100 can be suppressed.
As described above, the connection conversion adapter 1 according to embodiment 1 includes the adapter body 2 and the plate-shaped terminal cover 3. The adapter main body 2 includes a device connection portion 21 connected to a screw terminal 101 of a circuit breaker 100 as an example of an electrical device, and a conductor connection portion 22 connected to a conductive member not shown. The terminal cover 3 covers the screw terminals 101 in a state where the adapter body 2 is attached to the circuit breaker 100. The terminal cover 3 is attached to the adapter body 2 at the base end side in a state where the tip end is located below the exhaust port 105 of the circuit breaker 100 and is inclined downward from the base end toward the tip end. By disposing the terminal cover 3 in the oblique direction, the exhaust portion is free from any obstacle, and the gas exhausted from the exhaust port 105 of the electrical device provided at a position facing the upper space of the screw terminal 101 can be exhausted to the outside. Therefore, the degradation of the breaking performance in the circuit breaker 100 can be suppressed.
The terminal cover 3 is formed of a resin laminate material obtained by punching. This allows the connection conversion adapter 1 to be configured using the relatively low-cost terminal cover 3. The terminal cover 3 may be a plate-like resin having a certain thickness, and 1 member may be 1 piece with respect to 1 adapter body 2, so that it can be configured at a relatively low cost.
The terminal cover 3 is formed with a hole for checking electricity 321 which is a hole for checking the voltage of the screw terminal 101. This makes it possible to perform an electricity test via the terminal cover 3.
The adapter body 2 further includes a cover engaging portion 26, and the cover engaging portion 26 engages with an engaging portion 323 provided in the terminal cover 3. The cover engagement portion 26 is formed on the surface 3a side of the terminal cover 3 facing the screw terminal 101. As a result, the cover engagement portion 26 can be provided at a position where contact from the outside is difficult, and for example, it is possible to prevent the terminal cover 3 from being pulled out while the cover engagement portion 26 serving as the disengagement preventing portion is pressed from above and deflected.
The adapter body 2 further includes an engaging portion cover 27, and the engaging portion cover 27 covers the cover engaging portion 26 from above. As a result, the cover engagement portion 26 is more difficult to touch from the outside, and the connection conversion adapter 1 is difficult to be detached from the adapter body 2 without being damaged. Therefore, for example, the terminal cover 3 can be further prevented from being pulled out while the cover engaging portion 26 serving as the disengagement preventing portion is pressed from above to be deflected.
Embodiment 2.
The connection conversion adapter according to embodiment 2 is different from the connection conversion adapter 1 according to embodiment 1 in that a cover engaging portion and an engaging portion cover corresponding to each pole are provided in 1 connection conversion modules among a plurality of types of connection conversion modules constituting an adapter main body. The same components as those of the connection conversion adapter 1 according to embodiment 1 will be denoted by the same reference numerals, and description thereof will be omitted, mainly describing the structure of an adapter body different from the connection conversion adapter 1 according to embodiment 1.
Fig. 11 is an external oblique view of an adapter body in the connection conversion adapter according to embodiment 2 of the present invention. Fig. 12 is an external perspective view of 1 type of connection conversion module among the plurality of types of connection conversion modules constituting the adapter body shown in fig. 11. Fig. 11 shows only the adapter body 2A of the connection conversion adapter 1A according to embodiment 2.
The adapter body 2A shown in fig. 11 has 3 types of connection conversion modules 28a, 28b, 28c and a body cover 29. Each of the connection conversion modules 28a, 28b, 28c has 1 conductor connection portion 22. In the adapter main body 2A shown in fig. 11, the plurality of connection conversion modules 28a, 28b, 28c are connected in a stacked manner. Thus, the connection conversion adapter 1A corresponding to a plurality of electric devices including the single-pole type electric device and the multi-pole type electric device can be easily obtained.
The plurality of connection conversion modules 28a, 28b, 28c have different shapes so as to be connectable in a stacked manner, and determine positions to be arranged at the time of connection in the stacked manner. In the adapter main body 2A shown in fig. 11, the connection conversion modules 28a, 28b, 28c, and 28b are connected in an arrangement. The main body cover 29 is coupled to the connection conversion module 28 b.
The connection conversion modules 28b are arranged in common for 1 or 1 of the respective poles in all the poles, regardless of whether they are single-pole or multi-pole. Further, a cover engaging portion 26 and an engaging portion cover 27 for preventing the terminal cover 3 from coming off are formed in the connection conversion module 28 b.
As described above, the adapter main body 2A is provided with the cover engaging portion 26 and the engaging portion cover 27 in the connection conversion module 28b commonly used for all poles. Therefore, even when the number of poles of the adapter main body 2A is increased or decreased, the number of cover portions 32 of the terminal cover 3 is increased or decreased, so that the terminal cover 3 corresponding to the connection conversion adapter 1A with the changed number of poles can be easily obtained, and the cost for design can be reduced.
Further, since the insertion direction of the terminal cover 3 is orthogonal to the coupling direction of the connection conversion modules 28a, 28b, 28c, movement of the connection conversion modules 28a, 28b, 28c in the connection direction after insertion of the terminal cover 3 is restricted. Therefore, the connection conversion modules 28a, 28b, 28c can be more firmly connected.
As described above, the adapter body 2A according to embodiment 2 includes the plurality of conductor connecting portions 22 and the cover engaging portions 26. The adapter main body 2A has a plurality of connection conversion modules 28a, 28b, 28c arranged in the arrangement direction of the screw terminals 101, and the connection conversion modules 28a, 28b, 28c have respective corresponding conductor connection portions 22 among the plurality of conductor connection portions 22. The plurality of cover engaging portions 26 are formed in 1 type of connection conversion module 28b among the plurality of types of connection conversion modules 28a, 28b, 28 c. This can easily increase or decrease the number of poles of the adapter body 2A, and can reduce the cost for design.
In embodiments 1 and 2 described above, the circuit breaker 100 is described as an example of the electric device, but the present invention is applicable to an electric device having the screw terminal 101 and the air outlet 105 close to the screw terminal 101. For example, the connection conversion adapter 1, 1A may be used for a shutter, an electromagnetic contactor, or the like instead of the circuit breaker 100. Further, an electrical device including the connection conversion adapter 1, 1A and the circuit breaker 100 can be provided. The circuit breaker 100, the shutter, and the electromagnetic contactor each have an opening/closing contact that opens and closes a circuit that connects the screw terminal 101 on the load side and the screw terminal 101 on the power supply side.
The configuration shown in the above embodiment shows an example of the content of the present invention, and other known techniques may be combined, and a part of the configuration may be omitted or changed without departing from the scope of the present invention.

Claims (7)

1.一种连接变换适配器，其特征在于，具有：1. A connection conversion adapter, characterized by having: 适配器主体，其具有与电气设备的螺钉端子连接的设备连接部、以及与导电部件连接的导体连接部；以及an adapter body having an equipment connection portion connected to a screw terminal of an electrical device and a conductor connection portion connected to a conductive member; and 板状的端子罩，其在所述适配器主体安装于所述电气设备的状态的情况下，将所述螺钉端子的上方覆盖，a plate-shaped terminal cover which covers the upper part of the screw terminal when the adapter body is mounted on the electrical device, 所述端子罩在与所述电气设备的排气口相比前端位于下方且从基端朝向前端向下方倾斜的状态下，将基端侧安装于所述适配器主体，The terminal cover is attached to the adapter body with its proximal end side in a state where the front end is located below the exhaust port of the electrical device and the terminal cover is tilted downward from the proximal end toward the front end. 所述端子罩具有：验电用孔，其是用于对所述螺钉端子的电压进行检查的孔；引导槽，其对设置于所述端子罩的凸出部进行引导；以及卡合部，其与设置于所述适配器主体的罩卡合部卡合，所述端子罩在从所述前端朝向基端的方向上按所述验电用孔、所述引导槽以及所述卡合部的顺序配置。The terminal cover has: a hole for testing electricity, which is a hole for checking the voltage of the screw terminal; a guide groove, which guides the protrusion provided on the terminal cover; and a snap-fitting portion, which snaps with the cover snap-fitting portion provided on the adapter body, and the terminal cover is arranged in the direction from the front end toward the base end in the order of the hole for testing electricity, the guide groove and the snap-fitting portion. 2.一种连接变换适配器，其特征在于，具有：2. A connection conversion adapter, characterized in that it has: 适配器主体，其具有与电气设备的螺钉端子连接的设备连接部、以及与导电部件连接的导体连接部；以及an adapter body having an equipment connection portion connected to a screw terminal of an electrical device and a conductor connection portion connected to a conductive member; and 板状的端子罩，其在所述适配器主体安装于所述电气设备的状态的情况下，将所述螺钉端子的上方覆盖，a plate-shaped terminal cover which covers the upper part of the screw terminal when the adapter body is mounted on the electrical device, 所述端子罩在与所述电气设备的排气口相比前端位于下方且从基端朝向前端向下方倾斜的状态下，将基端侧安装于所述适配器主体，The terminal cover is attached to the adapter body with its proximal end side in a state where the front end is located below the exhaust port of the electrical device and the terminal cover is tilted downward from the proximal end toward the front end. 所述适配器主体具有：罩卡合部，其与设置于所述端子罩的卡合部卡合；以及卡合部罩，其从上方覆盖所述罩卡合部，The adapter body includes: a cover engaging portion engaged with an engaging portion provided on the terminal cover; and an engaging portion cover covering the cover engaging portion from above. 所述罩卡合部形成于所述端子罩中的与所述螺钉端子相对的面侧。The cover engaging portion is formed on a surface side of the terminal cover that faces the screw terminal. 3.一种连接变换适配器，其特征在于，具有：3. A connection conversion adapter, characterized in that it has: 适配器主体，其具有与电气设备的螺钉端子连接的设备连接部、以及与导电部件连接的导体连接部；以及an adapter body having an equipment connection portion connected to a screw terminal of an electrical device and a conductor connection portion connected to a conductive member; and 板状的端子罩，其在所述适配器主体安装于所述电气设备的状态的情况下，将所述螺钉端子的上方覆盖，a plate-shaped terminal cover which covers the upper part of the screw terminal when the adapter body is mounted on the electrical device, 所述端子罩在与所述电气设备的排气口相比前端位于下方且从基端朝向前端向下方倾斜的状态下，将基端侧安装于所述适配器主体，The terminal cover is attached to the adapter body with its proximal end side in a state where the front end is located below the exhaust port of the electrical device and the terminal cover is tilted downward from the proximal end toward the front end. 所述适配器主体具有罩卡合部，其与设置于所述端子罩的卡合部卡合，The adapter body has a cover engaging portion that engages with an engaging portion provided on the terminal cover. 分别具有多个所述导体连接部及所述罩卡合部，The conductor connecting parts and the cover engaging parts are respectively provided with a plurality of the conductor connecting parts and the cover engaging parts. 所述适配器主体具有多个种类的连接变换模块，它们具有多个所述导体连接部中的分别对应的导体连接部，在所述螺钉端子的排列方向上排列，The adapter body has a plurality of types of connection conversion modules, which have conductor connection portions corresponding to the plurality of conductor connection portions, and are arranged in the arrangement direction of the screw terminals. 多个所述罩卡合部分别形成于所述多个种类的连接变换模块中的1个种类的连接变换模块。The plurality of cover engagement portions are respectively formed on one type of connection conversion module among the plurality of types of connection conversion modules. 4.根据权利要求1或3所述的连接变换适配器，其特征在于，4. The connection conversion adapter according to claim 1 or 3, characterized in that: 所述罩卡合部形成于所述端子罩中的与所述螺钉端子相对的面侧。The cover engaging portion is formed on a surface side of the terminal cover that faces the screw terminal. 5.根据权利要求1或3或4所述的连接变换适配器，其特征在于，5. The connection conversion adapter according to claim 1, 3 or 4, characterized in that: 所述适配器主体具有卡合部罩，该卡合部罩从上方将所述罩卡合部覆盖。The adapter body includes an engagement portion cover that covers the cover engagement portion from above. 6.根据权利要求1至5中任意一项所述的连接变换适配器，其特征在于，6. The connection conversion adapter according to any one of claims 1 to 5, characterized in that: 所述端子罩是由冲裁加工出的树脂层叠材料形成的。The terminal cover is formed of a resin laminate material obtained by punching. 7.一种电气设备，其特征在于，具有：7. An electrical device, characterized by having: 权利要求1至6中任一项所述的连接变换适配器；以及The connection conversion adapter according to any one of claims 1 to 6; and 开闭触点，其针对将负载侧的螺钉端子和电源侧的螺钉端子相连的电路而进行开闭，A switch contact that opens and closes the circuit connecting the screw terminal on the load side and the screw terminal on the power supply side. 在所述负载侧的螺钉端子及所述电源侧的螺钉端子的任一者或两者连接所述连接变换适配器。The connection conversion adapter is connected to either or both of the screw terminals on the load side and the screw terminals on the power supply side.
CN202010207797.8A 2019-03-28 2020-03-23 Connect conversion adapter and electrical equipment Active CN111755290B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/013762 WO2020194704A1 (en) 2019-03-28 2019-03-28 Connection conversion adapter and electric device
JPPCT/JP2019/013762 2019-03-28

Publications (2)

Publication Number Publication Date
CN111755290A CN111755290A (en) 2020-10-09
CN111755290B true CN111755290B (en) 2025-05-13

Family

ID=72495566

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202010207797.8A Active CN111755290B (en) 2019-03-28 2020-03-23 Connect conversion adapter and electrical equipment
CN202020374855.1U Withdrawn - After Issue CN211555807U (en) 2019-03-28 2020-03-23 Connect conversion adapters and electrical equipment

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202020374855.1U Withdrawn - After Issue CN211555807U (en) 2019-03-28 2020-03-23 Connect conversion adapters and electrical equipment

Country Status (3)

Country Link
JP (1) JP7019095B2 (en)
CN (2) CN111755290B (en)
WO (1) WO2020194704A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020194704A1 (en) * 2019-03-28 2020-10-01 三菱電機株式会社 Connection conversion adapter and electric device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081970U (en) * 1973-11-30 1975-07-14
JPS5584844U (en) * 1978-12-05 1980-06-11
JPH05274991A (en) * 1992-03-25 1993-10-22 Fuji Electric Co Ltd Terminal device
JP2009099405A (en) * 2007-10-17 2009-05-07 Mitsubishi Electric Corp Plug-in circuit breaker
CN211555807U (en) * 2019-03-28 2020-09-22 三菱电机株式会社 Connect conversion adapters and electrical equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584884U (en) * 1980-01-14 1980-06-11
JPS5852854U (en) * 1981-09-29 1983-04-09 東芝ライテック株式会社 circuit breaker
JP3414243B2 (en) * 1997-08-20 2003-06-09 松下電工株式会社 Connection conversion adapter
JP3414259B2 (en) * 1998-05-28 2003-06-09 松下電工株式会社 Connection conversion adapter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081970U (en) * 1973-11-30 1975-07-14
JPS5584844U (en) * 1978-12-05 1980-06-11
JPH05274991A (en) * 1992-03-25 1993-10-22 Fuji Electric Co Ltd Terminal device
JP2009099405A (en) * 2007-10-17 2009-05-07 Mitsubishi Electric Corp Plug-in circuit breaker
CN211555807U (en) * 2019-03-28 2020-09-22 三菱电机株式会社 Connect conversion adapters and electrical equipment

Also Published As

Publication number Publication date
CN211555807U (en) 2020-09-22
WO2020194704A1 (en) 2020-10-01
CN111755290A (en) 2020-10-09
JPWO2020194704A1 (en) 2021-10-14
JP7019095B2 (en) 2022-02-14

Similar Documents

Publication Publication Date Title
US7084727B2 (en) Switching device comprising a uniform control tile
CN100336153C (en) Breaking switch provided with fuse
CN101636807A (en) Connecting element for the connection of switching devices
RU2608761C2 (en) Electric connecting element
CN103201808A (en) Installation switching device
EP3667690A1 (en) Molded case circuit breaker
US7586057B2 (en) Electrical switching apparatus and vented case therefor
CN110047717B (en) Arc isolation cover of circuit breaker
CN211555807U (en) Connect conversion adapters and electrical equipment
CN110875164B (en) Circuit breaker for wiring
CN111725035B (en) Quick-connect terminal blocks and circuit breakers
CN216015242U (en) Moulded case circuit breaker, plug-in assembly, switching device
US8044312B2 (en) Electrical service device with depressions for increasing air gaps and leakage paths
CN1258801C (en) Support base for circuit breaker
CN118675946A (en) Device modules, serial assembly devices and contact springs
JP3843675B2 (en) Multi-pole switch terminal unit
CN101689432A (en) Installation switchgear having a device for mounting the same on a bus bar
CN104979141B (en) Breaker
TWI541851B (en) Circuit breaker
CN220753245U (en) Static contact assembly of switch
CN223296744U (en) Circuit breaker
CN119698681A (en) Multi-pole rail-mounted device with modular construction
CN220753260U (en) Static contact assembly of switch
CN118398446B (en) Circuit breaker
US7545247B2 (en) Electrical switching apparatus, and case and terminal shield therefor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant