CN203150734U

CN203150734U - Wiring device of secondary circuit wiring head

Info

Publication number: CN203150734U
Application number: CN 201320129164
Authority: CN
Inventors: 崔易
Original assignee: SHANGHAI HUANBAO ELECTRIC CO Ltd
Current assignee: Shanghai Huai Chun Automation Engineering Co., Ltd.
Priority date: 2013-03-20
Filing date: 2013-03-20
Publication date: 2013-08-21
Anticipated expiration: 2023-03-20

Abstract

The utility model relates to a wiring device of a secondary circuit wiring head. The device is characterized in that the device comprises a conductive body (4) which shows a rectangular body shape, two end faces of the conductive body (4) are provided with a rectangular blind hole (402) respectively, and the upper side face of the conductive body (4) is provided with two bolt holes (401) which are communicated with the rectangular blind holes (402); the device also an L shaped wiring head (2), the outer end of the L shaped wiring head (2) is provided with a wiring hole (202), the inner end of the L shaped wiring head (2) is provided with an anti-fallout blocking body (201), and the inner end is inserted into the rectangular blind hole (402) and then is clamped and fixed; the conductive body (4) and the L shaped wiring head (2) are connected and fastened through the bolt holes (401); and the device also comprises an insulated connecting seat (5) which is connected and fixed with the lower side face of the conductive body (4) and supports the conductive body (4).

Description

A kind of termination of secondary circuit connector lug

Technical field

The utility model relates to a kind of termination, relates in particular to a kind of termination of secondary circuit connector lug, belongs to the power transmission and distribution technical field.

Background technology

In power transmission and transformation system; high pressure, low-voltage complete switch equipment are extremely important parts; wherein primary equipment is being realized conveying and the distribution of electric energy in electric power system, and the secondary control appliance refers to the work of main equipment is monitored, controls, regulates, protected and operating condition is provided or produces the required low voltage electrical equipment of command signal for operation, attendant.

In secondary circuit, except guaranteeing that the principle design is correct, the connection of its secondary lead, the reliability of installation also are very important aspects.Binding post for maintenance, test, line is the junction of extremely important secondary lead in the secondary circuit, unreliable as connecting herein, control, monitor signal transmit when incorrect, in case system breaks down the major break down that will cause device damage, electric power system to disintegrate; If measure the loop problem is arranged, will influence metering, be difficult to also judge whether the quality of power supply is qualified simultaneously.Therefore, though the non-main body of secondary circuit, it provides qualified aspects such as electric energy all to play an important role in the safety that guarantees electrical production to the user.

The jockey of secondary lead is generally binding post and connector lug.Connector lug is commonly used is divided into O type, I type, U-shaped three kinds, under the normal operating position, can satisfy the wiring requirement of secondary lead fully, but power equipment is this special use occasion at certain, as be used in power equipment on mine, the moving vehicle etc. etc., because of in secondary circuit through the fixing secondary lead of terminal, its connector lug is easy under situations such as frequent stressed, vibration loosening or come off, in case such situation takes place, may cause consequence very serious or that be difficult to retrieve.

Existing secondary wire connection device connects reliable inadequately, and not anti-design of throwing off is loosening easily, even throws off, and therefore has very big hidden danger.For this reason, design, make and a kind ofly to install that maintenance prevented secondary connection head convenient, that be connected and fixed the switchgear reliable, that manufacturing cost is lower is thrown off, loosening termination is very necessary.

Summary of the invention

The technical problem that the utility model actual needs solves is: existing secondary wire connection device connects reliable inadequately, and not anti-design of throwing off is loosening easily, even throws off, and therefore has very big hidden danger.

For solving high pressure, the low-voltage complete switch equipment in the above-mentioned special environment for use, the reliable connectivity problem of secondary connection head in production, manufacturing, maintenance process, of the present utility modelly provide a kind of termination that prevents that the secondary circuit connector lug from throwing off, its technical scheme that adopts is:

A kind of termination of secondary circuit connector lug comprises electric conductor 4, described electric conductor 4 rectangular body shapes, and its both ends of the surface are respectively offered rectangle blind hole 402, and upper side is offered two bolts hole 401, and described bolt hole 401 is communicated with described rectangle blind hole 402; Also comprise L shaped connector lug 2, described L shaped connector lug 2 outer ends are provided with wiring hole 202, and the inner is provided with the anticreep block body 201 that is directed upwardly, the inner insertion in the described rectangle blind hole 402, and lead 1 is fixedly clamped after inserting in the described wiring hole 202; Described electric conductor 4 is connected fastening with described L shaped connector lug 2 by described bolt hole 401; Also comprise insulation Connection Block 5, described insulation Connection Block 5 is connected and fixed with described electric conductor 4 downsides, and supports described electric conductor 4.

Further, about described electric conductor 4 is, equal symmetrical structure up and down, its upper and lower side respectively is provided with caulking groove 403, and described insulation Connection Block 5 upper surfaces are provided with corresponding protruding key, and described protruding key inserts in the described caulking groove 403 and is connected and fixed.

Further, described junction block adopts UL94, and the fire retardant plastic of V-0 is that material is made.

Further, described wiring hole 202 is rectangular.

Further, described L shaped connector lug 2 is copper.

Characteristics of the present utility model are: connect unstable at existing secondary circuit connector lug, the phenomenon of easy loose or dislocation, designed the electric conductor 4 of special construction, cooperate L shaped connector lug, L shaped connector lug is inserted in the electric conductor 4, the lower surface of the rectangle blind hole 402 of its seal face and electric conductor 4 fits tightly, insert in the bolt hole 401 of electric conductor 4 by bolt again, L shaped connector lug 2 is fixed with electric conductor 4, body 201 anti-out of supply on the L shaped connector is directed upwardly, played the effect that prevents that it from outwards sliding and coming off, even stressed, under the situations such as vibration, situation loosening or that come off can not appear yet; The wiring hole 201 by L shaped connector outer end also, with the lead 1 of outside to being connected, and use external force that wiring hole 201 is clamped distortion, be connected and fixed with lead 1.Whole electric conductor 4 is connected and fixed with the insulation Connection Block 5 of below, and having guaranteed has enough mechanical strengths and insulation property.

The beneficial effects of the utility model are:

1) rational in infrastructure, safe and reliable, be suitable for producing in batches;

2) easy to use, simple to operate, structural strength is high, make the performance of switchgear more excellent, operating personnel's personal safety and the reliability service of equipment when having guaranteed maintenance, operation;

3) satisfied the switchgear that uses in particular surroundings,, the specific (special) requirements that come off etc. to the secondary circuit middle connecting terminal anti-loosening.

Description of drawings

Fig. 1 is the axle generalized section of the termination of the utility model secondary circuit connector lug.

Fig. 2 is the schematic top plan view of Fig. 1.

Fig. 3 is the schematic top plan view of electric conductor.

Fig. 4 is that schematic diagram is looked on the left side of Fig. 3.

Fig. 5 is the A-A cutaway view among Fig. 3.

Fig. 6 is the schematic top plan view of L shaped connector lug.

Fig. 7 is that schematic diagram is looked on the right side of Fig. 6.

Fig. 8 is the front schematic view of L shaped connector lug.

Wherein, 1, lead, 2, L shaped connector lug, 3, trip bolt, 4, electric conductor, 5, the insulation Connection Block, 201, the anticreep block, 202, wiring hole, 401, bolt hole, 402, the rectangle blind hole, 403, caulking groove.

Embodiment

Below in conjunction with specific embodiment the utility model is further specified.

As shown in Figure 1 and Figure 2, a kind of termination that prevents that the secondary circuit connector lug from throwing off is mainly by one-tenth such as junction block 5, electric conductor 4, L type connector lug 2, trip bolt 3, trim pad, bullet pads; Trip bolt 3 and trim pad, bullet pad are standard component, and be equipped by figure as required.

As shown in Figure 3-Figure 5, electric conductor 4 is to be made with the good copper product of electric conductivity, is provided with caulking groove 403, wiring hole 402, bolt hole 401 thereon.

As shown in Figure 1 and Figure 2, junction block 5 is to use UL94, and the fire retardant plastic of V-0 is that material is made, and is main insulation, fixing, supporting component; When pressure injection junction block 5, electric conductor 4 to be fixed in position, after pressure injection is finished, electric conductor 4 will be securely fixed on the junction block 5, and guarantee to have enough mechanical strengths and insulation property.

As Fig. 6, Fig. 7, shown in Figure 8, L type connector lug 2, be with electric conductivity and plastic deformation ability all good copper product make, which is provided with wiring hole 202, the anticreep block body 201 of connector lug afterbody, referring to Fig. 8, its downside is seal face.

As shown in Figure 1 and Figure 2, a kind of termination that prevents that the secondary circuit connector lug from throwing off is realized its major function by following process.Insulating barrier with lead 1 outside divests suitable length with specific purpose tools such as wire stripping pliers earlier, the copper conductor that exposes the inside, copper conductor is inserted in the wiring hole 202 of the connector lug afterbody that L type connector lug 2 is provided with, compress wiring hole 202 with specific purpose tools such as crimpers, make its distortion, firm with the copper conductor combination of lead 1, realized the binding of lead 1 and L type connector lug 2 like this; Head with L type connector lug 2 inserts in the rectangle blind hole 402 set on the electric conductor 4 then, and make anticreep block body 201 up, when pushing away can be judged as after motionless, L type connector lug 2 puts in place, with trip bolt 3, the trim pad, the bullet pad inwardly screws in from bolt hole 401, up to the seal face that compresses on the L type connector lug 2, L type connector lug 2 is connected with electric conductor 4 and finishes like this, when L type connector lug 2 slides because outwards thrown off by external force, trip bolt 3 can stop that anticreep block body 201 continues outwards motion, prevent the disengagement of L type connector lug, realized the solution of the core technology problem that it is practical, can drop into coming into operation of switchgear assembly.

Claims

1. the termination of a secondary circuit connector lug is characterized in that:

Comprise electric conductor (4), the rectangular body shape of described electric conductor (4), its both ends of the surface are respectively offered rectangle blind hole (402), and upper side is offered two bolts hole (401), and described bolt hole (401) is communicated with described rectangle blind hole (402);

Also comprise L shaped connector lug (2), described L shaped connector lug (2) outer end is provided with wiring hole (202), the inner is provided with the anticreep block body (201) that is directed upwardly, the inner insertion in the described rectangle blind hole (402), and lead (1) is fixedly clamped after inserting in the described wiring hole (202);

Described electric conductor (4) is connected fastening with described L shaped connector lug (2) by described bolt hole (401);

Also comprise insulation Connection Block (5), described insulation Connection Block (5) is connected and fixed with described electric conductor (4) downside, and supports described electric conductor (4).

2. the termination of secondary circuit connector lug as claimed in claim 1 is characterized in that:

About described electric conductor (4) is, equal symmetrical structure up and down, its upper and lower side respectively is provided with caulking groove (403), described insulation Connection Block (5) upper surface is provided with corresponding protruding key, described protruding key inserts in the described caulking groove (403) and is connected and fixed.

3. the termination of secondary circuit connector lug as claimed in claim 1 is characterized in that: described junction block adopts UL94, and the fire retardant plastic of V-0 is that material is made.

4. the termination of secondary circuit connector lug as claimed in claim 1 is characterized in that:

Described wiring hole (202) is rectangular.

5. the termination of secondary circuit connector lug as claimed in claim 1 is characterized in that:

Described L shaped connector lug (2) is copper.