CN203366941U

CN203366941U - Mining flame-proof type dry type transformer low-voltage binding post structure and transformer with same

Info

Publication number: CN203366941U
Application number: CN 201320319284
Authority: CN
Inventors: 江武
Original assignee: Huaxiang Xiangneng Electric Co Ltd
Current assignee: Huaxiang Xiangneng Electric Co Ltd
Priority date: 2013-06-05
Filing date: 2013-06-05
Publication date: 2013-12-25
Anticipated expiration: 2023-06-05

Abstract

The utility model discloses a mining flame-proof type dry type transformer low-voltage binding post structure. The mining flame-proof type dry type transformer low-voltage binding post structure comprises a wiring board, contact bolts, a tail portion leading wire, a connecting piece and a phase wire, wherein each contact bolt is a semi-lead-screw, the tail portions of the contact bolts are flat plates, one end of the tail portion of each contact bolt penetrates through the wiring plate and is connected into a clamping groove of the wiring board in a clamped mode, the tail portion leading wire and the phase wire are connected with the tail ends of the two contact bolts respectively, and the two ends of the connecting piece are connected with the lead screw ends of the contact bolts respectively through bolts. The mining flame-proof type dry type transformer low-voltage binding post structure has the advantages of being good in contact and safe to use. The utility model further discloses a transformer.

Description

Flameproof dry type transformer low tension terminal structure and the transformer that comprises it

Technical field

The utility model relates to the transformer technology field, the transformer that relates in particular to a kind of flameproof dry type transformer low tension terminal structure and comprise this low tension terminal structure.

Background technology

Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage.Along with the fast development of China Power construction, to demand and all increases day by day of quality requirement of transformer.Wherein, dry-type transformer is widely used in localized lighting, electronic circuit, and in flameproof dry type transformer, we usually can use two kinds of voltages low-pressure section; so because these two kinds of voltages are not to use and can change to realize by Y/D the variation of voltage simultaneously, thereby reach result of use.In prior art, as depicted in figs. 1 and 2, in design and producing, we are by a head and tail head a, b, c, the x, y, z of low voltage winding in transformers, 6 pile crowns are guided on low pressure terminal block 1, and by contact screw rod 2,5, it is drawn, adopt brace 4 that x-y-z is connected to form to Y connects or a-y, b-z, c-x are connected to form D and connect simultaneously.Brace 4 is by bolted; when reality is used; often can two kinds of voltage exchanges use; the type of attachment of lug plate just often can change; nut will be become flexible naturally; as slightly had in operation, do not note just there will be afterbody 3 clamp nuts that go between loosening, cause the phenomenon of loose contact, may cause in the course of time contacting screw rod 2,5 and burn out.

Therefore, provide a kind of contact good, to use safe flameproof dry type transformer low tension terminal structure be the technical problem that those skilled in the art need solution badly.

The utility model content

The problem existed for prior art, the purpose of this utility model be to propose a kind of contact good, use safe flameproof dry type transformer low tension terminal structure, the utility model also proposes a kind of transformer that comprises above-mentioned flameproof dry type transformer low tension terminal structure.

For reaching this purpose, the utility model is by the following technical solutions: a kind of flameproof dry type transformer low tension terminal structure, comprise terminal block, contact screw rod, afterbody lead-in wire, brace and phase line, described contact screw rod is half screw mandrel, its afterbody is dull and stereotyped, two described contact screw rod tail one ends pass described terminal block and are connected in described terminal block draw-in groove, and described afterbody lead-in wire is connected with two described contact screw rod tail ends respectively with described phase line; Described brace two ends are connected with described contact screw rod screw mandrel end by bolt respectively.

Preferably, described afterbody lead-in wire is fixedly connected with two described screw rod tail ends that contact respectively by bolt with described phase line.

The utility model also provides a kind of transformer, comprises above-mentioned flameproof dry type transformer low tension terminal structure.

Compared with prior art, flameproof dry type transformer low tension terminal structure disclosed in the utility model, adopt half screw mandrel by contacting screw rod, and its afterbody adopts dull and stereotyped, makes the end head can be stuck in the terminal block draw-in groove, thereby limited the rotary freedom that contacts screw rod, therefore, be difficult for looseningly, contact better, use safer.

The technique effect of the technique effect of transformer disclosed in the utility model and above-mentioned flameproof dry type transformer low tension terminal structure is basic identical, repeats no more herein.

The accompanying drawing explanation

Fig. 1 is the structural representation of a kind of flameproof dry type transformer low tension terminal structure in prior art;

Fig. 2 is the structural representation of the terminal block of mining flameproof dry-type transformer low tension terminal structure in Fig. 1;

Fig. 3 is the structural representation of a kind of flameproof dry type transformer low tension terminal structure that the utility model proposes;

Fig. 4 is the structural representation of the terminal block of mining flameproof dry-type transformer low tension terminal structure in Fig. 3;

Fig. 5 is the structural representation of the contact screw rod of mining flameproof dry-type transformer low tension terminal structure in Fig. 3.

Embodiment

The purpose of this utility model be to provide a kind of contact good, use safe flameproof dry type transformer low tension terminal structure and comprise the transformer of this flameproof dry type transformer low tension terminal structure.

In order to make those skilled in the art understand better the technical solution of the utility model; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should any restriction not arranged to protection range of the present utility model.

Please refer to Fig. 3, and in conjunction with Fig. 4 and Fig. 5, in one embodiment, the utility model provides a kind of transformer, it comprises a kind of flameproof dry type transformer low tension terminal structure, described flameproof dry type transformer low tension terminal structure comprises terminal block 6, contact screw rod 8, afterbody lead-in wire 7, brace 9 and phase line 10, described contact screw rod 8 is half screw mandrel, its afterbody is dull and stereotyped, two described contact screw rod 8 afterbody one ends pass described terminal block 6 and are connected in described terminal block 6 draw-in grooves, described afterbody lead-in wire 7 is fixedly connected with two described screw rod 8 tail ends that contact respectively by bolt with described phase line 10, described brace 9 two ends are connected with described contact screw rod 8 screw mandrel ends by bolt respectively.

The disclosed flameproof dry type transformer low tension terminal of the present embodiment structure, adopt half screw mandrel by contacting screw rod 8, and its afterbody adopts dull and stereotyped, make the end head can be stuck in terminal block 6 draw-in grooves, thereby limited the rotary freedom of contact screw rod 8, therefore, be difficult for loosening, contact better, use safer.

It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise which key element, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.

Applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.The above is only preferred implementation of the present utility model, should be understood that, finiteness due to literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement, retouching or variation, also above-mentioned technical characterictic can be combined by rights; These improve retouching, change or combination, or without improving, the design of utility model and technical scheme are directly applied to other occasion, all should be considered as protection range of the present utility model.

Claims

1. a flameproof dry type transformer low tension terminal structure, comprise terminal block, contact screw rod, afterbody lead-in wire, brace and phase line, it is characterized in that, described contact screw rod is half screw mandrel, its afterbody is dull and stereotyped, two described contact screw rod tail one ends pass described terminal block and are connected in described terminal block draw-in groove, and described afterbody lead-in wire is connected with two described contact screw rod tail ends respectively with described phase line; Described brace two ends are connected with described contact screw rod screw mandrel end by bolt respectively.

2. flameproof dry type transformer low tension terminal structure according to claim 1, is characterized in that, described afterbody lead-in wire is fixedly connected with two described screw rod tail ends that contact respectively by bolt with described phase line.

3. a transformer, is characterized in that, comprises flameproof dry type transformer low tension terminal structure as claimed in claim 1 or 2.