CN203367776U

CN203367776U - Knife switch box

Info

Publication number: CN203367776U
Application number: CN 201320361083
Authority: CN
Inventors: 何俊; 范勤良; 张小方; 夏冰; 潘栋良
Original assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Changzhou Power Supply Co of Jiangsu Electric Power Co
Current assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Changzhou Power Supply Co of Jiangsu Electric Power Co
Priority date: 2013-06-21
Filing date: 2013-06-21
Publication date: 2013-12-25
Anticipated expiration: 2023-06-21

Abstract

The utility model provides a knife switch box. The knife switch box comprises a box body, a cable, a cable fixing device, a transition binding post, a fuse, an alternating current contactor, a time relay, an electrical leakage protection switch, an air switch and a socket. A plastic cuboid box body member serves as the box body. A front panel of the box body is provided with a pause button installing hole and a socket installing hole. A lower end plate of the box body is provided with a cable inlet hole. The a cable fixing device, the transition binding post, the fuse, the alternating current contactor, the time relay, the electrical leakage protection switch and the air switch are all fixed in the box body. The socket is fixedly installed on the front panel of the box body. The fuse, the alternating current contactor, the time relay, the electrical leakage protection switch, the air switch and the socket are successively connected in series. The knife switch box is convenient to install, portable and durable, low in cost, good in safety and suitable for popularization and application in rural areas.

Description

A kind of plug-in strip case

Technical field

The utility model relates to controller switching equipment, is specifically related to a kind of plug-in strip case of using for field, rural area distribution.

Background technology

Current, raising along with the agricultural production mechanization degree, field in rural area, extensively use the plug-in strip case that low-voltage circuit connects electric use, for the temporary electricities such as the threshing of the wheat of spring and autumn, rice, pumping irrigation provide power interface, the plug-in strip case becomes rural subscribers' threshing requisite electricity consumption facility of agricultural production such as fetch water gradually.Common plug-in strip case usually adopts in simple iron sheet housing the moving knife switch of leader is set, and useful life is short out of doors; Need to climb up the overlap joint that carries out feed cable on the power distribution rod of transmission line before use temporarily, need again to step on bar after use and remove cable, time-consuming; There is no earth leakage protective and short circuit tripgear, iron-clad easily conducts electricity, and poor stability easily causes electric shock accidents; There is no the electricity consumption time-controlling arrangement, the wiring electricity consumption is convenient privately, causes the difficulty of the management of power use.The plug-in strip case that adopts band to purchase money drawing plat, stainless steel casing is also arranged at present, but this type plug-in strip case cost is higher, is not suitable for rural area and applies.

The utility model content

The purpose of this utility model is: overcome the deficiencies in the prior art, provide a kind of and be convenient to installation, Portable durable, cost is lower, fail safe good and plug-in strip case that the applicable rural area that the electricity consumption time is controlled is applied.

The technical solution of the utility model is: plug-in strip case of the present utility model, and its design feature is: comprise casing, cable, cable retainer, transition wiring terminal, fuse, A.C. contactor, the time relay, earth leakage circuit-breaker, air switch and socket;

Above-mentioned casing is plastic rectangular box body part; The front console of the front console of casing is provided with pause button installing hole and socket mounting hole; The bottom plate of casing is provided with cable and enters hole;

Cable retainer, transition wiring terminal, fuse, A.C. contactor, the time relay, earth leakage circuit-breaker, air switch all are fixedly installed in casing; Socket is fixedly mounted in the socket mounting hole on the front console of casing and after fixing by cable retainer and is electrically connected to the end of incoming cables of fuse by transition wiring terminal; The end of incoming cables of A.C. contactor is electrically connected to the leading-out terminal of fuse; The end of incoming cables of the time relay is electrically connected to the leading-out terminal of A.C. contactor; The end of incoming cables of earth leakage circuit-breaker is electrically connected to the leading-out terminal of the time relay; The end of incoming cables of air switch is electrically connected to the leading-out terminal of earth leakage circuit-breaker; Socket is electrically connected to the leading-out terminal of air switch.

Further scheme is: also comprise that control button left by contactor, contactor closes control button, the normal indicator light of contactor, contactor malfunction indicator lamp and pause button; Above-mentioned contactor is driven control button, contactor closes control button, the normal indicator light of contactor, contactor malfunction indicator lamp and pause button and is electrically connected to A.C. contactor respectively.

Further scheme is: the front console of above-mentioned casing is transparent plastic article; Transition wiring terminal is that copper-aluminium transition connects post; The time relay is digital display time relay.

Further scheme also has: above-mentioned earth leakage circuit-breaker and air switch are that Regrand 2P40A is with earth leakage protective two-in-one air switch.

The utlity model has positive effect: (1) plug-in strip case of the present utility model, be convenient to install, Portable durable, cost is lower, and apply in applicable rural area.(2) plug-in strip case of the present utility model, inside and external discrete, the user touches less than alive circuit, has creepage protection function, and fail safe is good.(3) plug-in strip case of the present utility model, have time control function, has efficiency to control the electricity consumption time.(4) plug-in strip case of the present utility model, be fixedly mounted on the field of need using, and long service life only need to operate during use on the plug-in strip case, without before using and after using, stepping on the bar spliced cables, and the generation of time saving and energy saving and decrease safent accident.

The accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is the utility model installation shown in Fig. 1 and the schematic diagram of the state of use;

Fig. 3 is the internal electric annexation schematic diagram of the present utility model shown in Fig. 1.

Reference numeral in above-mentioned accompanying drawing is as follows:

Casing 1, cable 2, cable retainer 3, transition wiring terminal 4, fuse 5,

A.C. contactor 6, control button 61 left by contactor, and contactor closes control button 62, the normal indicator light 63 of contactor, contactor malfunction indicator lamp 64, pause button 65,

The time relay 7, earth leakage circuit-breaker 8, air switch 9, socket 10.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

(embodiment 1)

See Fig. 1 to Fig. 3, the plug-in strip case of the present embodiment, mainly be comprised of casing 1, cable 2, cable retainer 3, transition wiring terminal 4, fuse 5, A.C. contactor 6, the time relay 7, earth leakage circuit-breaker 8, air switch 9 and socket 10.

The material of casing 1 is plastics.The cuboid box body part that casing 1 is upward and downward.The front console of casing 1 is transparent plastic.The front console of casing 1 is provided with pause button installing hole and socket mounting hole; The bottom plate of casing 1 is provided with cable and enters hole.

Cable 2 is the three-phase and four-line cable.One end of cable 2 is electrically connected to electric line; The cable of the other end of cable 2 from the bottom plate of casing 1 enters in hole access casing 1.

Cable retainer 3 is arranged in casing 1, and the cable approached on the bottom plate of casing 1 enters hole.Cable retainer 3 is fixed in casing for the cable 2 to access.

Transition wiring terminal 4 is arranged in casing 1, for cable 2 is carried out to separated time and wiring.Transition wiring terminal 4 preferably adopts copper-aluminium transition to connect post.

The overcurrent protection of fuse 5 during for electricity consumption.Preferably adopt the fuse of the just great RT14-20 model of ore deposit, Shanghai dragon in fuse 5 the present embodiment.

The A.C. contactor of the 220V CJ-2 that preferably adopts Delixi Electric Applicance Co., Ltd to produce in A.C. contactor 6 the present embodiment-40A model.Open control button 61, contactor pass control button 62, the normal indicator light 63 of contactor, contactor malfunction indicator lamp 64 and pause button 65 with the supporting contactor that is provided with of A.C. contactor 6.Control button 61 left by contactor, contactor closes control button 62, the normal indicator light 63 of contactor, contactor malfunction indicator lamp 64 and pause button 65 and is electrically connected to A.C. contactor 6 respectively.Contactor leaves control button 61 for connecting A.C. contactor 6; Contactor closes control button 62 for cutting out A.C. contactor 6; The normal indicator light 63 of contactor is for showing that A.C. contactor 6 is in normal operating conditions; Contactor malfunction indicator lamp 64 is for showing that A.C. contactor 6 is in the fail operation state.Pause button 65 is the interim connection that suspends A.C. contactor 6 when using.

Preferably adopting day model of positive group in the time relay 7 the present embodiment is the DH48S-S digital display time relay.The time relay 6, for the metering to the electricity consumption time and control, reaches the electricity consumption of setting during the time, its auto-breaking.

Earth leakage circuit-breaker 8 is for short circuit and earth leakage protective; Air switch 9 is for being switched on or switched off the power supply of socket 10.In the present embodiment, earth leakage circuit-breaker 8 and air switch 9 preferably adopt Regrand 2P40A with earth leakage protective two-in-one air switch.

Socket 10 is fixedly mounted in the socket mounting hole on the front console of casing 1, when using for the grafting out-put supply.

Cable 2 is introduced in casing 1 and after fixing by cable retainer 3 and is electrically connected to the end of incoming cables of fuse 5 by transition wiring terminal 4; The end of incoming cables of A.C. contactor 6 is electrically connected to the leading-out terminal of fuse 5; The end of incoming cables of the time relay 7 is electrically connected to the leading-out terminal of A.C. contactor 6; The end of incoming cables of earth leakage circuit-breaker 8 is electrically connected to the leading-out terminal of the time relay 7; The end of incoming cables of air switch 9 is electrically connected to the leading-out terminal of earth leakage circuit-breaker 8; Socket 10 is electrically connected to a, b, the c three-phase leading-out terminal of air switch 9.

To sum up, the plug-in strip case of the present embodiment, be convenient to install, Portable durable, and cost is lower, and apply in applicable rural area; Inside and external discrete, the user touches less than alive circuit, has creepage protection function, and fail safe is good; There is time control function, have efficiency to control the electricity consumption time; Be fixedly mounted on the field of need using, long service life only need to operate during use on the plug-in strip case, without before using and after using, stepping on the bar spliced cables, and the generation of time saving and energy saving and decrease safent accident.

Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not in the situation that break away from spirit and scope of the present utility model; can also make various conversion and variation and obtain the corresponding technical scheme be equal to, therefore all technical schemes that are equal to all should be included into scope of patent protection of the present utility model.

Claims

1. a plug-in strip case, is characterized in that: comprise casing (1), cable (2), cable retainer (3), transition wiring terminal (4), fuse (5), A.C. contactor (6), the time relay (7), earth leakage circuit-breaker (8), air switch (9) and socket (10);

Described casing (1) is plastic rectangular box body part; The front console of the front console of casing (1) is provided with pause button installing hole and socket mounting hole; The bottom plate of casing (1) is provided with cable and enters hole;

Cable retainer (3), transition wiring terminal (4), fuse (5), A.C. contactor (6), the time relay (7), earth leakage circuit-breaker (8), air switch (9) all are fixedly installed in casing (1); Socket (10) is fixedly mounted in the socket mounting hole on the front console of casing (1) and after fixing by cable retainer (3) and is electrically connected to the end of incoming cables of fuse (5) by transition wiring terminal (4); The end of incoming cables of A.C. contactor (6) is electrically connected to the leading-out terminal of fuse (5); The end of incoming cables of the time relay (7) is electrically connected to the leading-out terminal of A.C. contactor (6); The end of incoming cables of earth leakage circuit-breaker (8) is electrically connected to the leading-out terminal of the time relay (7); The end of incoming cables of air switch (9) is electrically connected to the leading-out terminal of earth leakage circuit-breaker (8); Socket (10) is electrically connected to the leading-out terminal of air switch (9).

2. plug-in strip case according to claim 1, is characterized in that: also comprise that control button (61) left by contactor, contactor closes control button (62), the normal indicator light of contactor (63), contactor malfunction indicator lamp (64) and pause button (65); Described contactor is driven control button (61), contactor closes control button (62), the normal indicator light of contactor (63), contactor malfunction indicator lamp (64) and pause button (65) and is electrically connected to A.C. contactor (6) respectively.

3. plug-in strip case according to claim 1, it is characterized in that: the front console of described casing (1) is transparent plastic article; Transition wiring terminal (4) connects post for copper-aluminium transition; The time relay (7) is digital display time relay.

4. plug-in strip case according to claim 1 is characterized in that: described earth leakage circuit-breaker (8) and air switch (9) for Regrand 2P40A with earth leakage protective two-in-one air switch.