KR20110047455A - Busbar Connecting Device for Electric Power Distribution - Google Patents

Abstract

PURPOSE: A busbar connecting device for an electric power distributor is provided to secure the electricity quality by preventing the connection fault. CONSTITUTION: A busbar connecting device for an electric power distributor comprises a connection clip(24) including a pair of clip terminals(22a,22b) on both sides of the clip, a fixing frame(26) which covers the surrounding of the connection clip in order to prevent the deviation of the clip, and a protective cover(30) for protecting the side edge of the connection clip.

Description

Busbar Connecting Device for Electric Power Distribution}

The present invention relates to a busbar connection device for a switchboard, and more particularly, it is possible to quickly and easily make energized connection between neighboring busbars without using a separate tool and fixing parts, thereby improving workability and working according to the energized connection. It is possible to shorten the time, and to use the tension when the clip terminal and the busbar are coupled to prevent the strengthening of the contact force and poor contact, so that smooth current flow and stable energization quality can be obtained.

In general, as shown in FIG. 1, safety devices, instruments, indicators, relays, power supply switchgear, and the like are disposed at an industrial site, a power plant, a substation, or a building that is equipped with an electric facility, for the purpose of opening and monitoring the power supply. The switchboard 10 is provided in the switchboard enclosure A. FIG. In this case, when the plurality of switchboards 10 are arranged in a neighboring state, as shown in the drawing, the neighboring switchboards 10 may connect the bus bars 12 drawn from the switchboard 10 to each other to share power. Doing.

As described above, a rod-shaped connection terminal block 14 is used for energizing connection between the busbars 12 of the switchboard 10, and the connection terminal block 14 is made of a bolt and a nut to be fixed to the busbar 12. The fastening member 16 is fastened.

By the way, when bolting with the fastening member 16 between the busbar 12 and the connecting terminal block 14, there is a hassle due to the fastening of the bolt and nut, with the bolting in the narrow space of the distribution box (A) There is a limit in the free use of the tool to perform the work is not good workability, and therefore a lot of work time.

In addition, when the connection terminal block 14 is fixed to the busbar 12 as described above, if the fastening force of the fastening member 16 is insufficient, the lift between the busbar 12 and the connection terminal block 14 occurs. In addition, due to such lifting, poor contact results in an unstable flow of current.

Accordingly, if the tightening tightening force of the fastening member 16 is strengthened to prevent poor contact caused by lifting, the bus bar 12 and the connection terminal block 14 can be surely contacted without lifting, but the bus bar 12 And the contact portion of the connection terminal block 14 is deformed by the tightening tightening force, the contact failure occurs, the current flow becomes unstable.

When the flow of the current supplied to the switchboard 10 becomes unstable due to the above causes, the equipment supplied with power through the switchboard 10 is damaged.

The present invention was developed in order to solve the above problems, it is possible to quickly and easily make the energized connection between the neighboring busbar without using a separate tool and fixing parts, thereby improving workability and working time according to the energized connection Provides a busbar connection device for switchgear that can be shortened, and by using tension when connecting the clip terminal and the busbar to prevent connection strength enhancement and contact failure, so that smooth current flow and stable energization quality can be obtained. Its purpose is to.

The present invention for achieving the above object, and a pair of clip clips arranged on both sides to form a gap between the contact portion between the both ends and a pair; A fixing frame coupled to wrap around a central portion of the connection clip to prevent the clip terminal of the connection clip from being separated; It is configured to include a first and a second protective cover that can be arranged in the longitudinal direction of the connection clip is connected to receive the connection clip in the inserted state when the one end of the connection clip and the side circumference of the connection clip Busbar connection devices for switchboards are provided.

In addition, the fixing rivet is coupled between the clip terminal in a state penetrating the fixing frame disposed in the center of the connection clip; It further comprises a recess formed in the inner surface of the clip terminal to partially wrap the fixed rivet.

In addition, support protrusions formed on both outer sides of the clip terminal corresponding to the contact portion; And a tension member disposed in the longitudinal direction of the clip terminal inside the fixing frame in a state in which the tension blades at both ends are supported and fixed to the support protrusion, respectively.

In addition, openings are formed at both sides of the first body forming the appearance of the first protective cover so as to insert the busbar and the connection clip on one side; The outer surface of the first body is formed with a protruding edge and the engaging projection, respectively; The second body forming the exterior of the second protective cover is made of a hollow shape, the coupling hole to which the coupling protrusion of the first body is coupled is formed in the second body.

In addition, the first wing has a locking blade that is formed at the end of the hook hook is connected to both sides of the corresponding surface is disposed in the longitudinal direction of the first body; A locking jaw portion having a locking hole is formed on an outer surface of the second body of the second protective cover corresponding to the locking blade so that the locking hook can be coupled; The gap between the hook hook and the hooking jaw is formed to allow the inner end of the coupling hole of the wall to be fitted between the hooking hook and the hooking jaw when the hook is coupled to the hooking jaw.

In addition, the outer end of the fixing frame is engaged on the inner surface of the second body so that the engaging piece protrudes inwardly so as not to escape in the opposite direction in which the connection clip is received.

In addition, the third body to form an appearance of the third protective cover which is detachably connected from the second body of the second protective cover in an extended state so as to protect the other contact portion of the connection clip corresponding to the one end contact portion; It is formed on both sides of the third body and comprises an opening that can be inserted into the other side of the secondary bar and the connecting clip.

In addition, a coupling protrusion is formed in the third body so that the second body and the third body can be detachably coupled, and a coupling hole is formed in a corresponding second body so that the coupling protrusion can be coupled.

By the busbar connection device for the switchboard according to the present invention as described above, without the use of a separate tool or fixing parts in the narrow switchgear enclosure, the effect that can be easily and quickly connected between the neighboring busbar, and workability accordingly You can expect both an improvement and a shorter working time.

In addition, when the busbar connection device for switchgear according to the present invention is used, reinforcement of connection force and change of position of the clip terminal are suppressed by the tension member when the clip terminal and the busbar are coupled, thereby connecting and contacting the busbar and the connection clip. Defects can be prevented, and thus, an effect of obtaining a smooth current flow and stable energization quality can be expected.

Hereinafter, exemplary embodiments of a bus bar connection device for a switchgear according to the present invention will be described in detail with reference to the accompanying drawings.

Example 1

2 is an exploded perspective view showing a busbar connection device for a switchboard according to the first embodiment of the present invention, and FIG. 3 is a partially combined perspective view showing FIG.

As shown in the drawing, when the configuration of the busbar connection device 20 for switchboards according to the first embodiment is schematically described, the busbar connection device 20 is a connection clip in which a pair of clip terminals 22a and 22b form a pair. (24), a fixing frame (26) coupled to the connecting clip (24) to prevent separation of the clip terminals (22a, 22b), and a fixing frame (26) in a state of supporting both ends of the clip terminals (22a, 22b). ) And the tension member 28 which is provided inside the tension and provides a tension, and the connection clip 24 in a state in which the connection clip 24 is accommodated to protect the connection clip 24 and the wall portion B of the switchboard enclosure A. ) And the first and second protective covers 30 and 32 to be engaged with each other. (See Fig. 4)

Specifically, the connecting clip 24 is arranged in a state in which a pair of clip terminals 22a and 22b symmetrically symmetrically disposed on the left and right sides, and when a pair of clip terminals 22a and 22b are disposed on the left and right sides, The gaps L are formed between the contact portions 34 at both ends of the clip terminals 22a and 22b. In addition, the support protrusions 36 protrude from the outer surfaces of the contact portions 34 and the clip terminals 22a and 22b respectively.

For reference, the number of arrangement of the connection clips 22a and 22b shown in the drawing is only one example, and it is obvious that the number of the connection clips 22 can be appropriately increased or decreased according to the power supply amperage of the bus bar 12.

In addition, a fixed rivet 38 is disposed between the clip terminal 22a and the clip terminal 22b, that is, at the center of the connection clip 24. At this time, the groove 40 is excavated on the inner surface of the clip terminals (22a, 22b) so that the outer peripheral surface of the fixed rivet 38 is partially accommodated. With this fixed rivet 38 as the center, a minute rotation is possible in the direction in which the gap between both ends of the connection clip 24 is opened or closed.

The fixing frame 26 is coupled in the form of wrapping around the center circumference of the plurality of connection clips 24, and a rivet hole 42 through which the fixing rivet 38 is penetrated is formed in the center.

The tension member 28 is disposed on both inner surfaces of the fixing frame 26 surrounding the connection clip 24, that is, on both sides of the clip terminals 22a and 22b, respectively, and disposed in the longitudinal direction of the clip terminals 22a and 22b. Tension blades 44 cut individually at each end are fixed to the support protrusions 36 of the corresponding clip terminals 22a and 22b, respectively.

Accordingly, the tension member 28 exhibits a tension function for providing a secure and robust connection force to the clip terminals 22a and 22b, and the tension function thus provided will be described in more detail below. .

Openings 48 and 50 are formed at both sides of the first body 46 forming the exterior of the first protective cover 30 so that the bus bar 12 may be inserted into one side and the insert may be inserted to accommodate the connection clip 24. ) Are formed respectively. In particular, the opening 48 is formed in a state orthogonal to the engagement state in which the connection clip 24 is disposed.

In addition, a fixed guide part (not shown), which forms a pair, is spaced apart by the thickness of the connection clip on both sides of the inner side of the first body 46 so as to hold a coupling position of the connection clip received therein. It is provided in the state to become. Accordingly, when the connecting clip 24 is received and coupled to the interior of the first body 46 of the first protective cover 30, a pair of fixed guide portions formed in a pair of clip terminals 22a and 22b are disposed at the outermost sides. By holding the connection clip 20 by being in a state in which each corresponding surface of the corresponding contact.

In addition, the edge portion 54 and the engaging projection 56 are formed at the end portions of the first body 46 corresponding to the opening 48 into which the bus bar 12 is inserted, and protrude on both outer surfaces corresponding to each other. It is.

And, on both sides of the other corresponding surface except for the outer surface on both sides where the edge portion 54 and the engaging projection 56 is provided, the locking blade 60 having the hook hook 58 formed at one end is integral with the first body 46. It is formed in the longitudinal direction respectively. The coupling protrusion 56 and the locking blade 60 has a function of being coupled to the second protective cover 32 to be described later in a detachable state.

The second body 62 forming the appearance of the second protective cover 32 is made of a hollow structure and corresponding to the coupling protrusion 56 and the locking wing 60 mentioned above to correspond to each other correspondingly. Coupling hole 64 is coupled to the engaging projection 56 on the surface, and the locking jaw portion 68 is formed with a locking hole 66 is formed so that the locking hook 58 of the locking blade 60 can be coupled. At this time, between the hook hook 58 and the hooking jaw portion 68, the hook hook 58 is engaged in a state in which a gap is formed with the hooking jaw portion 68 while the hook hook 58 is engaged. This clearance is formed larger than the thickness of the inner end (C) so that the inner end (C) of the coupling hole of the wall portion (b) to be described later can be fitted. (See Fig. 4)

At the same time, a locking piece 70 is formed on the inner side of the second body 62 so that the outer edge of the fixing frame 26 is caught so that the connecting clip 24 does not easily come out.

For reference, when the fixing frame 26 is inserted into the second body 62 to accommodate the connection clip 24, the pressure pushing the locking piece 70 in the direction in which the fixing frame 26 is inserted is Will be added. Thereby, although the fine but the engaging piece 70 causes the elastic deformation to be inward, the complete insertion of the fixing frame 26 can be made.

Then, when the complete insertion of the fixing frame 26 is completed, the bending piece 70 that has been bent is elastically returned, thereby making a fine but locking in the opposite direction in which the fixing frame 26 is inserted, thereby making the connection clip ( 24) unless the force that tries to pull out is applied to the locking piece 70, the opposition itself does not easily come out.

Accordingly, the first and second protective covers 30 and 32 are connected in the longitudinal direction of the connection clip 24, and the connection clip 24 is formed inside the first and second protective covers 30 and 32. By being coupled in the accommodated state, the end of the contact portion 34 of the connection clip 24 and the side circumference of the connection clip 24 exhibits a function capable of protecting.

Furthermore, although the first and second protective covers 30 and 32 are described as being detachably coupled to each other, this is not limited thereto, and the first body 46 of the first protective cover 30 is not limited thereto. And the second body 62 of the second protective cover 32 may be connected to one, such a structure will be included in the present invention.

4 is a front sectional view showing the electrical conduction connection between the busbars of the neighboring switchboards using the busbar connection device for the switchboard according to the first embodiment.

As shown in the figure, when the connection work is performed between the busbars 12 of the neighboring switchboard 10, the connection terminal block 14 and the fastening member 16 is not used as in the prior art, but the neighboring switchboard The connection device 20 according to the present invention is coupled to the wall portion B of the switchboard enclosure A for partitioning between the 10.

As described above, in order for the connection device 20 to be coupled to the wall portion A, the coupling hole is preformed in the wall portion A and pushed into the coupling hole.

When the connection device 20 is pushed in this way, the inner end C of the coupling hole passes through the outer surface of the connection device 20 and is coupled in a state located between the edge portion 28 and the coupling protrusion 56. (See FIG. 3) At the same time, the coupling hole inner end C is also coupled between the hook hook 58 and the locking jaw portion 68. As a result, the inner end C of the quadrangular coupling hole is coupled to the circumference of the connecting device 20, respectively, so that it can maintain its rigidity.

For reference, since the first and second protective gerbers 30 and 32 constituting the connecting device 20 are made of synthetic resin capable of elastic deformation, they are fine but cause elastic deformation. The coupling hole of B) can be combined quickly and easily.

In addition, when the corresponding coupling hole inner end (C) is located between the rim portion 54 and the engaging projection 56 and between the hook hook 58 and the locking jaw portion 68, the rim portion 54, the engaging projection ( 56), unless the pressure is applied due to the elastic restoration of the locking jaw portion 68 itself, the state does not easily come out.

Therefore, the busbar connection device 20 for the switchboard according to the present invention can be provided with a convenience that can be easily coupled to the wall (B) without the use of a separate tool or fixing accessories.

When the connection device 20 is coupled to the wall portion B of the switchboard 10 as described above, the busbars 12 of the neighboring switchboard 10 are respectively inserted in the corresponding openings 48 and 50 in the corresponding openings, so that the connection is made. Each of the contact portions 34 of the clip 24 is connected to each other, so that electricity is supplied between neighboring switchboards 10.

On the other hand, when the bus bar 12 is connected to the connecting clip 24, the gap L of the contact portion 34 is formed finer but narrower than the bus bar 12 to have a firm coupling and connection force. Therefore, pressure is applied to the clip terminals 22a and 22b in the direction in which the gap L of both contact portions 34 is to be opened.

When the pressure applied to the clip terminals 22a and 22b is applied as described above, a separation phenomenon occurs in which the clip terminals 22a and 22b are moved. In this case, the fixing frame 26 and in particular the tension member 28 are applied. The tension blade 44 of)) firmly grips the clip terminals 22a and 22b, thereby minimizing positional movement. (See Fig. 3)

In particular, the tensioning blades 44 supported according to the positional movement amounts of the respective clip terminals 22a and 22b are bent independently, and tension is appropriately applied to the clip terminals 22a and 22b, thereby efficiently moving the position. This can be suppressed, thereby preventing connection and poor contact between the booth portion 12 and the contact portion 34.

In addition, when the positional movement and the positional shift of the clip terminals 22a and 22b become less than the allowable value as described above, the current flows stably, and the required conduction quality is obtained, thereby receiving power supply from the switchboard 10. Damage to the equipment can be prevented.

[Example 2]

Embodiment 1 described above is configured to protect the circumference of the side of the contact portion and the connection clip of the connection clip, as well as the wall portion using the first and second protective cover, Example 2 is embodiment 1 It has a configuration that can further protect the other end contact portion of the connection clip weak protection.

5 is an exploded perspective view showing a busbar connection apparatus for a switchboard according to Embodiment 2 of the present invention, FIG. 6 is a combined perspective view of FIG. 5, and a switchboard according to Embodiment 2 of FIG. 7. A shear cross-sectional view showing the electrical conduction connection between the busbars of neighboring switchboards using the busbar connection device is shown.

As shown in the drawing, in the connecting device 30, the third protective cover 71 is further coupled to the second protective cover 32 in a state extending along the longitudinal direction of the connecting clip 24, and such third protection. The cover 71 is formed in a shape similar to that of the first protective cover 30.

Specifically, the second body 62 so that the second body 62 of the second protective cover 32 and the third body 72 forming the appearance of the third protective cover 71 can be detachably coupled to each other. And a coupling hole 76 and a coupling protrusion 74 are formed on the corresponding outer surface of the third body 72). Therefore, in the illustrated figure, a part of the third body 72 is inserted into the second body 62 and connected in an extended state through the coupling between the coupling protrusion 74 and the coupling hole 76.

Furthermore, the coupling hole 76 may be disposed on the same surface as the coupling hole 64 formed in the second body 62 so that the coupling protrusion 56 of the first protective cover 30 may be coupled thereto. will be.

In addition, the third body 72 of the third protective cover 71 has openings 78 and 80 at both sides so that the bus bar 12 on the other side and the connection clip 24 can be inserted to accommodate the coupling. Are each formed, and in particular, the openings 78 into which the busbars 12 are inserted are formed to be orthogonal in the state in which the connection clip 24 is coupled.

The other configuration of the second embodiment and the wall portion B fixing of the connecting device 30 and the connection of the busbar 12 are the same as the connecting device 20 of the first embodiment described above, and therefore the same member numbers are used in the drawings. And other explanations are omitted.

Although the preferred embodiments of the present invention have been described above, those skilled in the art will appreciate that the present invention can be modified or modified in various ways. Therefore, changes of the embodiments of the present invention will not be able to escape the technical scope of the present invention.

      FIG. 1 is a front view schematically illustrating a state in which an electrically conducting connection between busbars of a neighboring switchboard is generally performed.

Figure 2 is an exploded perspective view showing a bus bar connection device for a switchboard according to the first embodiment of the present invention.

3 is a partially combined perspective view of FIG. 2.

Figure 4 is a shear cross-sectional view showing the electrical conduction connection between the busbar of the neighboring switchboard by using the busbar connection device for the switchboard according to the first embodiment.

Figure 5 is an exploded perspective view showing a busbar connection device for a switchboard according to a second embodiment of the present invention.

6 is a combined trial view of FIG. 5.

FIG. 7 is a front sectional view showing the electrical conduction connection between busbars of neighboring switchboards using the busbar connection device for the switchboard according to the second embodiment. FIG.

<Explanation of symbols for the main parts of the drawings>

10: switchboard 12: busbar

14: connecting terminal block 16: fastening member

20, 30: connection device 22a, 22b: clip terminal

26: fixing frame 28: tension member

30: first protective cover 32: second protective cover

34: contact portion 36: support protrusion

38: fixed rivet 40: groove

42: rivet ball 44: tension wings

46: first body 48, 50, 78, 80: opening

54: rim 56, 74: engaging projection

58: hook hook 60: hook wing

62: second body 64, 76: coupling hole

66: locking hole 69: locking jaw

70: engaging piece 71: third protective cover

72: third body

Claims (8)

A pair of connection clips arranged on both sides of the pair of clip terminals to form a gap between the contact portions at both ends; A fixing frame coupled to wrap around a central portion of the connection clip to prevent the clip terminal of the connection clip from being separated; It is configured to include a first and a second protective cover that can be arranged in the longitudinal direction of the connection clip is connected to receive the connection clip in the inserted state when the one end of the connection clip and the side circumference of the connection clip Busbar connection device for switchboard, characterized in that. The method of claim 1, A fixing rivet coupled between the clip terminals in a state of passing through the fixing frame and disposed at the center of the connection clip; Busbar connection device for a switchboard characterized in that it further comprises a concave groove formed on the inner surface of the clip terminal to partially wrap the fixed rivet. 3. The method of claim 2, Support protrusions formed on outer surfaces of both ends of the clip terminal corresponding to the contact portion; And a tension member disposed in the longitudinal direction of the clip terminal inside the fixing frame in a state in which the tension blades at both ends are supported and fixed to the support protrusion, respectively. The method of claim 3, Openings are formed at both sides of the first body forming the exterior of the first protective cover so that the busbar and the connection clip of one side can be inserted; The outer surface of the first body is formed with a protruding edge and the engaging projection, respectively; The second body forming the appearance of the second protective cover is made of a hollow shape, the bus bar connection device for a switchboard, characterized in that the coupling hole that can be coupled to the coupling projection of the first body is formed in the second body. The method of claim 4, wherein The first wing has a locking wing formed with a hook hook at the end is connected to both sides of the corresponding surface is disposed in the longitudinal direction of the first body; A locking jaw portion having a locking hole is formed on an outer surface of the second body of the second protective cover corresponding to the locking blade so that the locking hook can be coupled; And a gap between the hook hook and the hook jaw is formed so that an inner end of the coupling hole of the wall may be inserted between the hook hook and the hook jaw when the hook is coupled to the hook jaw. The method of claim 5, Busbar connection device for a switchboard, characterized in that the locking piece is protruded in the inner direction so that the outer end of the fixing frame is caught on the inner surface of the second body so that the connection clip does not escape in the opposite direction to accommodate the coupling. The method of claim 6, A third body forming an exterior of a third protective cover detachably connected to an extension state from a second body of the second protective cover so as to protect the other contact portion of the connection clip corresponding to the one end contact portion; Busbar connection device for the switchboard, characterized in that formed on both sides of the third body and comprises an opening that can be inserted into the other side of the secondary bar and the connecting clip. The method of claim 7, wherein A coupling protrusion is formed in the third body so that the second body and the third body can be detachably coupled, and a coupling hole is formed in a corresponding second body so that the coupling protrusion can be coupled. Busbar connection device for the switchboard.

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