CN203617549U - Shunt switching device and plug-in distribution box using same - Google Patents

Abstract

The shunt adapter includes a base, a power side arm, a load side arm, a plurality of rails and a plurality of covers. The base is provided with a placing surface, the power supply side support arm is arranged on one side of the placing surface, and the load side support arm is arranged on one side of the placing surface opposite to the power supply side support arm. The slide rail is positioned on the placing surface and between the power supply side support arm and the load side support arm, and is clamped at the bottom of the shunt circuit breaker in a sliding manner. The gland is the one end of connecting power side support arm and the relative face of placing of load side support arm respectively to set up in pairs, the gland attached branch circuit breaker part's top surface in ground of can buckling.

Description

Branch transfer device and plug-in distribution box using the device

technical field

The utility model relates to a branch switching device and a plug-in distribution box using the device; specifically, the utility model relates to a branch switching device which can avoid poor contact of a branch circuit breaker and its use Plug-in distribution box for the unit.

Background technique

The distribution box is a common circuit device for household or building power distribution. It divides the current and guides the outgoing current to different electrical equipment, such as lamps and televisions. The power distribution box is mainly equipped with slide rails on both sides of the bus for the branch circuit breaker to be engaged and coupled to the bus, so that the power can be transmitted from the bus to the electrical equipment.

However, the shunt circuit breaker is often replaced with a different brand of shunt circuit breaker due to the maintenance process, and the engagement effect between different shunt circuit breakers and slide rails is not the same, which will affect the connection between the shunt circuit breaker and the bus. The conduction effect, so there is a situation of poor contact.

In addition, most of the known slide rails are made of aluminum rails and are installed outside the branch circuit breaker. When the user disassembles the branch circuit breaker manually, there may be leakage current or accumulated on the aluminum rail by mistake. Operational hazards such as electrostatic injury on aluminum rails. Therefore, in order to solve the above-mentioned problems, the internal structures of known shunt circuit breakers and distribution boxes still need to be improved.

Utility model content

One purpose of the present utility model is to provide a branch switching device for a plug-in distribution box, which can avoid poor contact of the branch circuit breaker.

One purpose of the utility model is to provide a branch switching device for a plug-in distribution box, which can perform active plugging and unplugging operations when the main circuit breaker is kept powered on.

The shunt transfer device includes a base, a support arm on the power supply side, a support arm on the load side, multiple slide rails and multiple glands. The base has a placement surface, and the power supply side support arm is arranged on one side of the placement surface, and the load side support arm is arranged on the side of the placement surface opposite to the power supply side support arm. The slide rail is located on the placing surface and between the support arm on the power supply side and the support arm on the load side, and is slidingly engaged with the bottom of the branch circuit breaker. The glands are respectively connected to one end of the opposite placement surface of the support arm on the power supply side and the support arm on the load side, and are arranged in pairs. The glands can be bent and attached to the top surface of the part. When the shunt circuit breaker is engaged with the slide rail along the sliding direction, the base, the power side support arm and the load side support arm together form a frame to cover the shunt circuit breaker; when the gland cover is bent, the paired pressing The covers are rotated to face each other and secure the branch circuit breaker. Based on this design, the slide rail and the gland can provide good fixation of the shunt circuit breaker and avoid poor contact of the shunt circuit breaker.

As mentioned above, the branch switching device, wherein, the slide rails are protruded on the placement surface and arranged in pairs, and the pair of slide rails protrude from the placement surface and respectively face the power supply side support arm With the load side outrigger bent.

The shunt switching device as mentioned above further includes a load-side opening formed on the load-side support arm.

The branch switching device as mentioned above further includes a power supply side opening formed on the power supply side support arm.

As mentioned above, the shunt switching device further includes a clip accommodating portion for accommodating a conductive clip, the clip accommodating portion is arranged on the power supply side arm and faces away from the load The side support arm is extended, wherein the clip accommodating part has a first shell and a second shell, the first shell is connected to the power supply side support arm and is located on one side of the power supply side opening, the first shell The second housing is detachably connected to the first housing.

The splitting switch device as mentioned above, wherein it further includes a protrusion, which is perpendicular to the placement surface and connected to the end of the second casing close to the power supply side arm, when the second casing is connected to the first When a housing is used, the post is engaged with the support arm on the side of the power supply.

As mentioned above, the branch switching device, wherein the paired glands respectively have an inner surface and a locking terminal disposed on the inner surface, and the top surface of the branch circuit breaker is provided with a plurality of locking holes, When the pressing covers are bent and attached to the top surface, the engaging terminals extend into the locking holes.

A plug-in distribution box with a board inside, wherein the plug-in distribution box includes: a main circuit breaker, set on the board, with a power receiving end and a power distribution end for switching The electrical connection between the power receiving end and the power distribution end; a bus body coupled to the power distribution end and having a plurality of rows of insertion spaces; and at least one branching device respectively plugged into the insertion spaces , the branching device includes: a branching circuit breaker with a top surface, a bottom opposite to the top surface, and a branching switch disposed on the top surface; and a branching switch device, including: a base, It is arranged on the board body and has a placement surface; a power supply side arm is arranged on one side of the placement surface; a load side arm is arranged on the side of the placement surface opposite to the power supply side arm; a plurality of sliding Rail, located on the placement surface and between the power supply side support arm and the load side support arm, and slidably engaged with the bottom; and a plurality of glands, respectively connecting the power supply side support arm and the load side support arm One end opposite to the placement surface is arranged in pairs, and the pair of glands can be bent and attached to the top surface of the part; when the branch circuit breaker is engaged with the slide rails along a sliding direction, The base, the power-side support arm and the load-side support arm together form a frame that covers the shunt circuit breaker; when the glands are bent, the pair of glands rotate toward the direction facing each other , and secure the shunt breaker.

The aforementioned plug-in distribution box, wherein the slide rails protrude from the placement surface and are arranged in pairs, and the pair of slide rails protrude from the placement surface and respectively face the power supply side support arm With the load side outrigger bent.

The aforementioned plug-in distribution box further includes a load-side opening formed on the load-side support arm.

The aforementioned plug-in distribution box further includes a power supply side opening formed on the power supply side support arm.

As mentioned above, the plug-in distribution box further includes a clip accommodating portion for accommodating a conductive clip, the clip accommodating portion is arranged on the power supply side arm and faces away from the load The side support arm is extended, wherein the clip accommodating part has a first shell and a second shell, the first shell is connected to the power supply side support arm and is located on one side of the power supply side opening, the first shell The second housing is detachably connected to the first housing.

As mentioned above, the plug-in distribution box further includes a protrusion, which is perpendicular to the placement surface and connected to the end of the second casing close to the power supply side arm, when the second casing is connected to the first When a housing is used, the post is engaged with the support arm on the side of the power supply.

As mentioned above, the plug-in distribution box, wherein the paired glands respectively have an inner surface and a locking terminal arranged on the inner surface, and the top surface of the branch circuit breaker is provided with a plurality of locking holes, When the pressing covers are bent and attached to the top surface, the engaging terminals extend into the locking holes.

The advantages and spirit of the present utility model can be further understood through the following embodiments and accompanying drawings.

Description of drawings

FIG. 1A and FIG. 1B are schematic diagrams of an embodiment of the branch switching device of the present invention;

FIG. 2A and FIG. 2B are schematic diagrams of another embodiment of the branch switching device of the present invention;

FIG. 3A and FIG. 3B are schematic diagrams of an embodiment of the utility model branching switch device applied to a plug-in distribution box.

Description of main component symbols:

100 branch transfer device

102 base

104 placement surface

110 power side support arm

112 power supply side opening

114 clip housing part

1141 first housing

1142 second housing

1143 boss

120 load side support arm

122 load side opening

130 rails

140 gland

142 inside

144 snap-in terminal

200 shunt circuit breaker

201 shunt switch

202 Top

204 bottom

206 conductive clip

208 locking hole

210 load terminals

300 plug-in distribution box

302 box door

304 plate body

306 main circuit breaker

3061 power receiver

3062 power distribution terminal

308 bus body

3081 insertion space

310 split device

312 jack

a slip direction

Detailed ways

The branch switching device of the utility model is preferably applied to a plug-in distribution box. The slide rails and glands of the branch transfer device can be fixed on the bottom and top surface of the branch transfer device respectively, thereby avoiding poor fixing effect and poor contact caused by using different brands of branch circuit breakers. The branch switching device of the utility model can be used not only in household plug-in distribution boxes, but also in building or workshop wiring devices.

FIG. 1A and FIG. 1B are schematic diagrams of an embodiment of a branch switching device 100 of the present invention. As shown in FIG. 1A , the shunt switch device 100 includes a base 102 , a power-side support arm 110 , a load-side support arm 120 , multiple slide rails 130 and multiple glands 140 . The base 102 has a placement surface 104 for placing the branch circuit breaker 200 . The power-side support arm 110 is disposed on one side of the placement surface 104 , and the load-side support arm 120 is disposed on a side of the placement surface 104 opposite to the power-side support arm 110 . A load-side opening 122 is formed on the load-side support arm 120, which corresponds to the load terminal 210 of the shunt circuit breaker 200. After the shunt circuit breaker 200 is combined with the shunt switching device 100, the wires can be connected through the load-side opening 122. Thread into load terminal 210 . Similarly, a power side opening 112 is formed on the power side support arm 110 , corresponding to a power terminal (not shown in the drawings) of the shunt circuit breaker 200 . As shown in FIG. 1A , the power side opening 112 has a gap before being assembled, so that the conductive clip 206 can pass through the gap and be placed in the power side opening 112 . In detail, the conductive clip 206 is first connected to the power terminal of the branch circuit breaker 200, and then the branch circuit breaker 200 is combined with the branch switching device 100. When combined, the conductive clip 206 will move with the branch circuit breaker 200 And enter into the power side opening 112 from the notch.

In addition, a clip housing portion 114 for accommodating the conductive clip 206 is disposed on the power side support arm 110 close to the power side opening 112 . The clip accommodating portion 114 is formed by extending away from the load-side support arm 120 , and the clip accommodating portion 114 has a first shell 1141 and a second shell 1142 . The first housing 1141 is connected to the support arm 110 on the power side and located on one side of the opening 112 on the power side. The second housing 1142 is detachably connected to the first housing 1141 . In other words, when the shunt breaker 200 is combined with the shunt switching device 100 , the conductive clip 206 will enter the power side opening 112 with the movement of the shunt breaker 200 and be accommodated in the first housing 1141 at the same time. On the other hand, the end of the second housing 1142 close to the power side support arm 110 is connected to the protruding post 1143 , and the protruding post 1143 is perpendicular to the placing surface 104 . When the second shell 1142 is connected to the first shell 1141 , the protrusion 1143 engages with the power side support arm 110 and seals the gap on the power supply side support arm 110 (see FIG. 1B ). According to this design, the conductive clip 206 can be fixed in the clip accommodating portion 114 , so as to avoid poor contact of the shunt circuit breaker 200 after a long period of use.

In addition, there are a plurality of slide rails 130 on the placement surface 104 , the slide rails 130 are located between the power side support arm 110 and the load side support arm 120 , and are slidably engaged with the bottom 204 of the branch circuit breaker 200 . As shown in FIG. 1A , the slide rails 130 are protruding from the placement surface 104 and arranged in pairs. The pair of slide rails 130 protrude from the placement surface 104 and bend toward the power side support arm 110 and the load side support arm 120 respectively. . In this embodiment, each bend of the slide rail 130 has a notch that can be engaged with the bottom 204 of the branch circuit breaker 200 , but it is not limited thereto, the slide rail 130 can match different forms of the bottom 204 of the branch circuit breaker 200 Change its structure accordingly. Please refer to FIG. 1B at the same time. When the shunt circuit breaker 200 is engaged with the slide rail 130 along the sliding direction a, the base 102, the power side support arm 110 and the load side support arm 120 together form a frame to cover the shunt circuit breaker. 200. According to this design, the sliding rail 130 can be used to limit the movement of the branch circuit breaker 200 to the sliding direction a, and the aforementioned clip body accommodating portion 114 can be used to fix the branch circuit breaker 200 .

In addition, the power-side support arm 110 and the load-side support arm 120 also have glands 140 , which are respectively connected to one end of the power-side support arm 110 and the load-side support arm 120 opposite to the placement surface 104 , and are arranged in pairs. The gland 140, the power-side support arm 110 and the load-side support arm 120 are integrally produced by injection molding, and the connection between the gland 140 and the power-side support arm 110 and the connection between the gland 140 and the load-side support arm 120 The connection between them is flexibly attached to the top surface 202 of the portion. When the pressing covers 140 are bent, the paired pressing covers 140 rotate toward each other to fix the branch circuit breaker 200 . As shown in FIG. 1A, in this embodiment, an engaging terminal 144 is also provided on the inner surface 142 of the gland 140, which corresponds to the locking hole 208 on the top surface 202 of the shunt circuit breaker 200. When the gland 140 When bent and attached to the top surface 202 , the engaging terminal 144 extends into the locking hole 208 . According to this design, the pressing cover 140 and the engaging terminal 144 can be further fixed to improve the structural stability between the branch switching device 100 and the branch circuit breaker 200 .

As shown in FIG. 1B , the slide rail 130 of the branch switching device 100 is engaged with the bottom 204 of the branch circuit breaker 200, the conductive clip 206 can be fixed in the clip accommodating portion 114, and the bent cover 140 is fixed. On both sides of the shunt switch 201. The shunt switching device 100 is combined with the shunt circuit breaker 200 to form a shunt device 310 for switching the power flowing from the power supply end to the load end.

2A and 2B are schematic diagrams of another embodiment of the branch switching device 100 of the present invention. As shown in FIG. 2A , the difference from the previous embodiment is that the glands 140 on both sides of the branch switching device 100 have side plates 146 perpendicular to the inner surface 142 . When the pressing cover 140 is bent, the pressing cover 140 can be attached to the top surface 202 of the portion and the side plates 146 can further fix both sides of the top surface 202 (see FIG. 2B ). With this design, the structural stability between the shunt transfer device 100 and the shunt circuit breaker 200 can be improved by using the gland 140 and the side plate 146 to avoid shaking on both sides of the shunt switch 201 .

FIG. 3A and FIG. 3B are schematic diagrams of an embodiment of the utility model applying the branch switching device to a plug-in distribution box 300 . As shown in FIG. 3A , the plug-in distribution box 300 has a box door 302 on the outside, and a board 304 inside for setting components such as a main circuit breaker 306 , a bus main body 308 and a branching device 310 . It can be further understood from the enlarged and exploded view on the left side of FIG. 3A that the branching device 310 is correspondingly inserted into the insertion space 3081 of the bus body 308 . Please refer to FIG. 3B at the same time. FIG. 3B is a front view of the plug-in distribution box 300 of the present invention. As shown in FIG. 3B , the main circuit breaker 306 is disposed on the board body 304 and has a power receiving end 3061 and a power distribution end 3062 . The main circuit breaker 306 is used to switch the electrical connection between the power receiving end 3061 and the power distribution end 3062 . The bus body 308 is coupled to the power distribution terminal 3062 and has a plurality of column insertion spaces 3081 (refer to FIG. 3A ). In addition, the branching device 310 is plugged into the insertion space 3081 . As mentioned above, the branching device 310 is composed of a branch switching device and a branch circuit breaker. The branching device 310 is engaged with the jack 312 on the board body 304 in a hanging manner, and the position and quantity of the branching device 310 can be adjusted as required. As mentioned above, the shunt circuit breaker is first combined with the shunt transfer device, then hung on the board body 304 and plugged into the bus main body 308, so even if the plug-in distribution box 300 uses different Brand shunt circuit breakers, and each shunt circuit breaker can also provide the stability of the combination with the board body 304 and the bus main body 308 through the shunt transfer device of the same specification. In addition, by using the branch switching device of the present invention, the sliding rail, the clip body accommodating portion and the cover plate can also be provided to fix the branch circuit breaker in different directions, so as to avoid poor contact of the branch circuit breaker. From the point of view of increasing or decreasing the number of devices at the load end, since the slide rail is stored in the shunt transfer device, it is different from the known aluminum rail which is arranged on the board body 304 and is prone to electric shock accidents. Therefore, when the main circuit breaker maintains the power supply, the user only needs to close the shunt switch originally plugged into the shunt device 310 on the bus main body 308 to perform wiring replacement or increase or decrease of the shunt device 310 . In this way, the branch switching device of the present utility model can be used in live electrical work, which can improve work efficiency. This design not only provides a good fixation between the shunt adapter device and the shunt circuit breaker, but also the slide rail on the shunt adapter device that is used to engage with the bottom of the shunt circuit breaker is separated from the board. The operator can dismantle the whole branch device and then replace the branch circuit breaker under live electricity condition, so as to avoid the occurrence of electric shock and make the operation more efficient.

Through the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present utility model can be described more clearly, and the scope of the present utility model is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and arrangements with equivalents within the scope of the claims of the present utility model.

Claims (14)

1. A branch switching device, applied to a branch circuit breaker, characterized in that the branch circuit breaker has a top surface and a bottom, and the branch switching device includes: a base with a placing surface; A power supply side support arm is arranged on one side of the placing surface; A load-side support arm is arranged on the side of the placement surface opposite to the power supply-side support arm; a plurality of slide rails are located on the placement surface and between the power supply side support arm and the load side support arm, and are slidably engaged with the bottom; and A plurality of glands are respectively connected to one end of the power supply side support arm and the load side support arm opposite to the placement surface, and are arranged in pairs, and the pair of glands can be bent and attached to the top surface of the part; When the shunt circuit breaker is engaged with the slide rails along a sliding direction, the base, the power side support arm and the load side support arm together form a frame to cover the branch circuit breaker; When the glands are folded, the paired glands rotate toward the direction facing each other, and fix the branch circuit breaker. 2. The branch switching device according to claim 1, wherein the slide rails protrude from the placement surface and are arranged in pairs, and the pair of slide rails protrude from the placement surface and respectively Bending towards the power side support arm and the load side support arm. 3. The shunt switching device as claimed in claim 1, further comprising a load-side opening formed on the load-side support arm. 4 . The branch switching device according to claim 1 , further comprising a power supply side opening formed on the power supply side support arm. 5. The shunt switching device according to claim 1, further comprising a clip accommodating portion for accommodating a conductive clip, the clip accommodating portion is arranged on the power side support arm and extending away from the load-side support arm, wherein the clip accommodating portion has a first housing and a second housing, the first housing is connected to the power-side support arm and is located on the power-supply side On one side of the opening, the second housing is detachably connected to the first housing. 6. The shunt switching device according to claim 5, further comprising a protrusion, which is perpendicular to the placement surface and connected to the end of the second casing close to the power side support arm, when the first When the two shells are connected to the first shell, the protrusion is engaged with the support arm on the power supply side. 7. The branch switching device according to claim 1, wherein the paired glands respectively have an inner surface and a locking terminal disposed on the inner surface, and the top surface of the branch circuit breaker is provided with There are a plurality of locking holes, and when the glands are bent and attached to the top surface, the locking terminal extends into the locking holes. 8. A plug-in distribution box with a board inside, characterized in that the plug-in distribution box includes: A main circuit breaker, arranged on the board, has a power receiving end and a power distribution end, and is used to switch the electrical connection between the power receiving end and the power distribution end; a bus main body, coupled to the power distribution terminal, and has a plurality of row insertion spaces; and At least one branching device is plugged into the insertion spaces respectively, and the branching device includes: a shunt circuit breaker having a top surface, a bottom opposite the top surface and a shunt switch disposed on the top surface; and A branch switching device, including: A base is arranged on the board and has a placing surface; A power supply side support arm is arranged on one side of the placing surface; A load-side support arm is arranged on the side of the placement surface opposite to the power supply-side support arm; a plurality of slide rails are located on the placement surface and between the power supply side support arm and the load side support arm, and are slidably engaged with the bottom; and A plurality of glands are respectively connected to one end of the power supply side support arm and the load side support arm opposite to the placement surface, and are arranged in pairs, and the pair of glands can be bent and attached to the top surface of the part; When the shunt circuit breaker is engaged with the slide rails along a sliding direction, the base, the power side support arm and the load side support arm together form a frame to cover the branch circuit breaker; When the glands are folded, the paired glands rotate toward the direction facing each other, and fix the branch circuit breaker. 9. The plug-in distribution box according to claim 8, wherein the slide rails protrude from the placement surface and are arranged in pairs, and the pair of slide rails protrude from the placement surface and respectively Bending towards the power side support arm and the load side support arm. 10. The plug-in distribution box of claim 8, further comprising a load-side opening formed on the load-side support arm. 11. The plug-in distribution box according to claim 8, further comprising a power supply side opening formed on the power supply side support arm. 12. The plug-in distribution box according to claim 8, further comprising a clip accommodating portion for accommodating a conductive clip, the clip accommodating portion is arranged on the power supply side arm and extending away from the load-side support arm, wherein the clip accommodating portion has a first housing and a second housing, the first housing is connected to the power-side support arm and is located on the power-supply side On one side of the opening, the second housing is detachably connected to the first housing. 13. The plug-in distribution box according to claim 12, further comprising a protrusion, which is perpendicular to the placing surface and connected to the end of the second casing close to the power side support arm, when the first When the two shells are connected to the first shell, the protrusion is engaged with the support arm on the power supply side. 14. The plug-in distribution box according to claim 8, wherein the paired glands respectively have an inner surface and a locking terminal disposed on the inner surface, and the top surface of the branch circuit breaker is provided with There are a plurality of locking holes, and when the glands are bent and attached to the top surface, the locking terminal extends into the locking holes.

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