CN201044332Y

CN201044332Y - Generatrix connecting structure of low voltage distribution box

Info

Publication number: CN201044332Y
Application number: CNU2007200027584U
Authority: CN
Inventors: 王学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2008-04-02
Anticipated expiration: 2017-02-01

Abstract

The utility model relates to a busbar connecting construction of a low-pressure distribution cabinet, consisting of copper busbars (1) and copper branch bars (4) which are connected with an incoming circuit breaker (8) or an outgoing circuit breaker (9). The utility model is characterized in that: the busbar connecting construction is provided with a plurality of insulating grooves (2), the cross sections of which are U-shaped; the cross sections of the busbars (1) are U-shaped; the busbars (1) are embedded into the insulating grooves; the branch bars (4) are inserted into the U-shaped grooves of the busbars (1) and electrically connected with the sidewall of the U-shaped grooves of the busbars through pressure under the effect of a side pressure fixed block (3) which is arranged inside the U-shaped grooves of the busbars. The utility model can result in the imperforate connection between branch bars of the incoming circuit breaker of the low-pressure distribution cabinet and branch bars of the outgoing circuit breaker of the low voltage distribution cabinet through the U-shaped busbar grooves, and has the advantages of convenient and quick connecting operation, small space required, and reliable connection.

Description

The bus connection structure of low-tension distribution box

Technical field

The utility model belongs to a kind of power distribution equipment, is specifically related to the bus connection structure in a kind of low-tension distribution box.

Background technology

At present, be connected to the outlet circuit breaker by lead-in circuit breaker in the low-tension distribution box available for different connection modes is arranged, (1), the multiple conducting wires wire harness connects: multiple conducting wires is crimped in the terminal stud simultaneously, ward off the leading-out terminal that inserts lead-in circuit breaker behind the tin, more every lead is inserted the end of incoming cables of outlet circuit breaker respectively.The shortcoming of this kind mode of connection is that multiple conducting wires is crimped in the terminal stud simultaneously, it is insecure to be easy to generate crimping, it is virtual connection, long-term use and occur during by load current overheated, thereby cause burning lead and circuit breaker, the crudy that this kind mode of connection is arranged again is fully by manpower control, qualification rate is difficult to improve, the modifiability of this kind mode of connection after completion of processing is zero simultaneously, as customer requirements any one road load is strengthened, corresponding outlet circuit breaker can be changed, but wire harness will all be destroyed processing again.(2), general rectangle copper busbar connects: with A, B, C, each phase rectangle copper busbar of N is fixed on the insulator on the detail assembly panel, is connected respectively with the outlet circuit breaker with lead-in circuit breaker with branch's copper busbar again.Screw connects no matter this kind mode of connection is punching, also be to use the atresia of pressing line frame to connect, in order to ensure the phase spacing between each bus, the installing space that needs is two to three times of the wire harness mode of connection, the mode of connection that the less distribution box of volume can't use the rectangle copper busbar to connect at all.

Summary of the invention

The technical problems to be solved in the utility model is to overcome above-mentioned deficiency, provides that a kind of required installing space is little, attended operation is convenient and swift, the bus connection structure of the reliable low-tension distribution box of wiring.

The technical scheme that addresses the above problem is: the copper branch bar (4) that the utility model is provided with copper busbar (1), is connected with lead-in circuit breaker (8) or outlet circuit breaker (9), it is characterized in that: being provided with the some cross sections that are arranged side by side is the insulation tank (2) of U-shaped, described bus (1) cross section takes the shape of the letter U, be embedded in the U-shaped insulation tank (2), described branch bar (4) inserts in the U-lag of bus (1), and compresses with bus U-lag sidewall under the effect of the side pressure fixture (3) in placing the bus U-lag and be electrically connected.

Further scheme of the present utility model is: described bus (1) U-lag is suitable for reading to be equipped with that Open Side Down and to be stuck in the tight sheet of u tie (11) on the outside wall surface of bus U-lag both sides.

In practical operation, will be connected with lead-in circuit breaker in the U-lag that branch bar (4) inserts bus (1), by the side pressure fixture branch bar is compressed with bus U-lag sidewall and be electrically connected; The branch bar that will be connected with the outlet circuit breaker uses the same method to compress with another position of same bus U-lag and is electrically connected again, thereby finishes being electrically connected of lead-in circuit breaker and outlet circuit breaker.

The lead-in circuit breaker branch bar that the utility model can make low-tension distribution box realizes that by the U-shaped bus duct atresia is connected with the branch bar of outlet circuit breaker, has that attended operation is convenient and swift, requisite space is little, connect reliable advantage.

Description of drawings

Fig. 1, the utility model embodiment 1 structural representation

The A-A of Fig. 2, Fig. 1 embodiment is to structural representation

The partial enlarged drawing at B position among Fig. 3, Fig. 2

Fig. 4, the utility model embodiment 1 side pressure fixture 3 structural representations

Fig. 5, the utility model embodiment 2 side pressure anchor structure schematic diagrames

Another execution mode of Fig. 6, the utility model embodiment 2 side pressure fixtures 3 elastic fins 36

Location notch 32-sliding block 33-top shoe 34-goes up location notch 35-screw 36-elastic fin 37-side pressure mount body 4-branch bar 5-insulation tank extremity piece 6-wing support 7-transparent prevention plate 8-lead-in circuit breaker 9-outlet circuit breaker 10-mounting panel 11-banding sheet under the 1-bus 2-insulation tank 3-side pressure fixture 31-

Embodiment

Embodiment 1

This routine U-shaped insulation tank 2 is arranged side by side, and the copper busbar 1 that cross section takes the shape of the letter U is embedded in the U-shaped insulation tank, and U-shaped insulation tank two ends are positioned at bus 1 in the insulation tank by 5 sealings of insulation tank extremity piece.Insulation tank 2 is fixed on the mounting panel 10 between lead-in circuit breaker 8 and the outlet circuit breaker 9 side by side, and insulation tank 2 and bus 1 direction and branch bar 4 are in vertical direction.

Copper branch bar 4 extends to corresponding insulation tank 2 tops, and bending downwards extend in the U-lag of bus 1 in the insulation tank, and is compressed with bus U-lag sidewall by the side pressure fixture 3 in the bus U-lag and to be electrically connected.

Structure referring to this routine side pressure fixture 3 of Fig. 4: be provided with the following location of the U-shaped slotted vane 31 that opening makes progress, location slotted vane 34 on the U-shaped that Open Side Down, locate dress row top shoe 33 and sliding block 32 between the slotted vane up and down, the lower inclined plane of top shoe contacts the kiss that is slidingly matched and connects with the ramp face of sliding block, screw 35 passes location slotted vane 34 movingly successively, top shoe 33, sliding block 32, under locate slotted vane 31, and be threaded with following location notch 31, this side pressure fixture 3 is placed in the U-lag of bus 1, the radius of turn of locating slotted vane 31 down is greater than bus U-lag width, turn screw 35, because the location slotted vane is embedded in and can not rotates in the bus duct down, promptly can rise along screw 35, on pushing upwards that the inclined-plane cooperates, sliding block, slide block is expanded to both sides about making, branch bar 4 is compressed electrical connection to bus U-lag sidewall, and slide block also is that copper material is made up and down, plays the favorable conductive effect.

This example is contained in the tight sheet 11 of bus U-lag u tie suitable for reading and is enclosed within the position that is positioned at slotted vane 34 tops, location on the screw 35 movingly, and Open Side Down is enclosed within on the outer wall of bus U-lag both sides suitable for reading, when the upper and

lower slide block

32,33 in the U-lag compresses branch bar and bus to both sides expansion distending, it is suitable for reading that the banding sheet can play banding bus U-lag, prevents that it from the effect of deformation taking place.

The cross section of this routine branch bar 4 is a rectangle, i.e. the joint face of branch bar 4 and bus U-lag sidewall and be the plane facing to the face of side pressure fixture 3 can enlarge like this and compresses contact area.

The shared sidewall of insulation tank 2 adjacent two U-lags that is arranged side by side, U-shaped insulation tank 2 both sides sidewalls extend upward the height that is higher than bus 1 and places the side pressure fixture in the bus U-lag, so both area occupied can be reduced, the creepage distance between the bus in adjacent two insulation tanks can be increased again.

This example is equipped with the transparent shield 7 that insulating material is made above U-shaped insulation tank 2, be convenient to the operations staff and check the back panel wiring state at any time, can prevent that again the layman from touching electrified body.

Crosswise fixed has the protective stent 6. that can prevent the horizontal distending distortion of each insulation tank on the plurality of U-shaped insulation tank 2 that is arranged side by side

Embodiment 2

Referring to Fig. 5, these routine side pressure fixture 3 structures are: be provided with the open elastic fin 36 of outside elasticity on side pressure mount body sidewall, when branch bar 4 was inserted the bus U-lag with this side pressure fixture 3, the elastic fin 36 on the side pressure fixture sidewall can be with branch bar and bus U-lag sidewall elastic compression.

The tight sheet 11 of u tie is enclosed within the top of side pressure fixture, and Open Side Down is enclosed within on the outer wall of bus U-lag both sides suitable for reading.

Elastic fin 36 can be the shell fragment that extends obliquely upward shown in Figure 5, also can be the shell fragment that arches upward to sidepiece elasticity shown in Figure 6.

Branch bar 4 upper ends that this example is inserted the bus U-lag are the connector lug 41 that cross section increases, and connector lug 41 is provided with slot, and the slot that the branch bar 42 that is connected with described lead-in circuit breaker or outlet circuit breaker inserts connector lug is colded pressing with connector lug and is connected.

The wiring of can being more convenient for of this structure is installed, and can be earlier branch bar 4 lower ends of short band connector lug 41 be compressed with the bus U-lag and be connected the branch bar insertion connector lug jack that will connect again, the connection of colding pressing.

Claims

1. the bus connection structure of low-tension distribution box, the copper branch bar (4) that be provided with copper busbar (1), is connected with lead-in circuit breaker (8) or outlet circuit breaker (9), it is characterized in that: be provided with the insulation tank (2) that some cross sections of being arranged side by side take the shape of the letter U, described bus (1) cross section takes the shape of the letter U, be embedded in the U-shaped insulation tank (2), described branch bar (4) inserts in the U-lag of bus (1), and compresses with bus U-lag sidewall under the effect of the side pressure fixture (3) in placing the bus U-lag and be electrically connected.

2. the bus connection structure of low-tension distribution box according to claim 1 is characterized in that: described bus (1) U-lag is suitable for reading to be equipped with that Open Side Down and to be stuck in the tight sheet of u tie (11) on the outside wall surface of bus U-lag both sides.

3. the bus connection structure of low-tension distribution box according to claim 2, it is characterized in that: the structure of described side pressure fixture (3) is: be provided with the following location of the U-shaped slotted vane (31) that opening makes progress, locate slotted vane (34) on the U-shaped that Open Side Down, locate up and down top shoe (33) and sliding block (32) are housed between the slotted vane, the lower inclined plane of top shoe contacts the kiss that is slidingly matched and connects with the ramp face of sliding block, screw (35) passes location slotted vane (34) movingly successively, top shoe (33), sliding block (32), under locate slotted vane (31), and be threaded with following location notch (31), described banding sheet (11) is enclosed within the position that is positioned at slotted vane (34) top, location on the screw (35) movingly, and Open Side Down is enclosed within on the outer wall of bus U-lag both sides suitable for reading.

4. the bus connection structure of low-tension distribution box according to claim 2, it is characterized in that: the structure of described side pressure fixture (3) is: be provided with the open elastic fin of outside elasticity (36) on side pressure mount body (37) sidewall, with branch bar and bus U-lag sidewall elastic compression, described banding sheet (11) is enclosed within side pressure mount body (37) top movingly, and Open Side Down is enclosed within on the outer wall of bus U-lag both sides suitable for reading.

5. the bus connection structure of low-tension distribution box according to claim 4, it is characterized in that: described elastic fin (36) is the shell fragment that extends obliquely upward.

6. the bus connection structure of low-tension distribution box according to claim 4, it is characterized in that: described elastic fin (36) is the shell fragment that arches upward to sidepiece elasticity.

7. according to the bus connection structure of claim 2,3,4,5 or 6 described low-tension distribution boxes, it is characterized in that: the joint face of described branch bar (4) and bus U-lag sidewall and be the plane facing to the face of side pressure fixture (3).

8. according to the bus connection structure of claim 2,3,4,5 or 6 described low-tension distribution boxes, it is characterized in that: the shared sidewall of adjacent two U-lags of the described insulation tank that is arranged side by side (2), U-shaped insulation tank (2) both sides sidewall extend upward the height that exceeds bus (1) and place the side pressure fixture (3) in the bus U-lag.

9. according to the bus connection structure of claim 2,3,4,5 or 6 described low-tension distribution boxes, it is characterized in that: the connector lug (41) that branch bar (4) upper end of described insertion bus U-lag increases for cross section, connector lug (41) is provided with slot, and the slot of branch bar (42) the insertion connector lug that is connected with described lead-in circuit breaker or outlet circuit breaker is colded pressing with connector lug and is connected.

10. according to the bus connection structure of claim 2,3,4,5 or 6 described low-tension distribution boxes, it is characterized in that: described insulation tank side by side (2) is fixed on the mounting panel (10) that is positioned between lead-in circuit breaker (8) and the outlet circuit breaker (9), insulation tank (2) and bus (1) direction and branch bar (4) are in vertical direction, described copper branch bar (4) extends to corresponding insulation tank (2) top, and bending downwards extend in the U-lag of bus (1) in the insulation tank.