CN103346430A

CN103346430A - Power converter

Info

Publication number: CN103346430A
Application number: CN2013102571811A
Authority: CN
Inventors: 邓建华; 冯仰怀
Original assignee: XUZHOU XINDIAN HI-TECH ELECTRIC Co Ltd
Current assignee: XUZHOU XINDIAN HI-TECH ELECTRIC Co Ltd
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2013-10-09
Anticipated expiration: 2033-06-25
Also published as: CN103346430B

Abstract

The invention discloses a power converter. A sliding slot (16) is arranged between a middle shell body (1) and a lower shell body (4). A plug bush support (6) is mounted in the slide slot through a sliding block (15). An integral-type plug bush (7) is mounted in the plug bush support. A pressure-regulating sliding slot (12) is arranged in the plug bush support. A pressure-regulating elastic sheet (11) and pressure-regulating sliding blocks (10) are mounted in the pressure-regulating sliding slot, wherein the pressure-regulating sliding blocks are connected through pressure regulating screws (9). Compared with the prior art, the power converter achieves the effect that a plug sheet and a plug bush of a plug are in surface contact, can increase the current carrying capacity of a current carrying body substantially, avoids the accidents such as a fire and an electric shock caused by heating, ignition and other phenomena which happen due to the fact that the plug is in poor contact with a socket, and reduces the occurrences of potential safety hazards; meanwhile, the effect that the plug bush can be repaired through the adjustment of the pressure of the elastic sheet when the plug bush is seriously worn or the elasticity of the plug bush is lowered after the plug bush is used for a long term, therefore, the service life of the power converter is prolonged, the use cost is lowered, and resources are saved.

Description

A kind of power supply changeover device

Technical field

The present invention relates to a kind of power supply changeover device, belong to power supply conversion socket safety protection technique field.

Background technology

Current, various power supply changeover device (being supply socket) is people's indispensable little electrical materials and appliances of living, though object is very little and it is not high to be worth, direct relation the safety problem of people's the person and property.According to the statistics made by the departments concerned, in the fire incident of China's accumulative total generation in nearly 10 years, the electric shock that causes owing to reasons such as supply socket, switch short circuits and fire occupy first of all kinds of fire incident reasons, and nearly 80% is relevant with supply socket fault or line broken circuit in urban and rural residents' home fire.As seen, the security protection quality of power supply changeover device is directly connected to people's home safety.

Various power supply changeover device in use, be short-circuited, sparking, the reason of heating and electric shock accidents has material relatively poor, use inferior materials and turn out substandard goods, the using method of Structure Designing Problem and mistake etc., key issue is live wire, zero line, the not science of the terminal of ground wire and the gap between the wiring and creepage distance design, unreasonable the causing of sleeve design, the at present commercially available power supply changeover device by national standard production, even if material and size conforms quality requirement, but because the congenital flaw of sleeve design, when the latch of plug inserts in the power supply sleeve, most of form for partial points contact or local line's contact, heating or spark phenomenon will inevitably appear when ampacity is not enough, especially use through long-term at power supply changeover device, sleeve metal covering generation oxidation, wearing and tearing, come in contact bad consequence easilier after the distortion, thereby various power supply changeover device in the prior art exists serious potential safety hazard.

Summary of the invention

Problem at above-mentioned prior art existence, the invention provides a kind of power supply changeover device, the effect that the inserted sheet of realization plug contacts with the sleeve face can make sleeve closely contact with the inserted sheet of plug effectively, increases substantially the contact-making surface of current carrying object, all kinds of accidents of avoiding the loose contact because of power supply changeover device to produce, reduce the generation of potential safety hazard, can realize the adjustable reparation of sleeve simultaneously, thereby prolong the useful life of power supply changeover device, reduce use cost, saved resource.

To achieve these goals, this power supply changeover device comprises middle shell, and cooperates upper shell and the lower house of installing with it, and middle shell is by the base plate that has been threaded, in lower house, binding post reliably is connected with the intermediate connection terminal binding post by middle shell and base plate enclosed package;

Between middle shell and lower house, be provided with chute, in chute, by the slide block cooperation sleeve support is installed, the integral type sleeve is installed in the sleeve support, the inboard of sleeve support is provided with the pressure regulation chute, the pressure regulation shell fragment is installed in the pressure regulation chute, and the pressure regulation slide block that connects by voltage regulation screw, the pressure regulation slide block is pushed down the pressure regulation shell fragment by voltage regulation screw.

Binding post is built-in clamping plate type binding post, and all electrified body is all hidden and is installed in the shell of binding post.

Compared with prior art, slip formula sleeve support and the integral type sleeve of this power supply change-over device by arranging, and utilize the mode of slide block and chute cooperating, realized the effect that the inserted sheet of plug contacts with the sleeve face, can significantly improve the ampacity of carrying object, fire, the electric shock accidents of avoiding phenomenons such as heating that the loose contact because of plug and socket produces, sparking to cause reduce the generation of potential safety hazard; Pressure regulation chute, pressure regulation shell fragment by in the sleeve support, arranging simultaneously, and the mode that connects the pressure regulation slide block by voltage regulation screw, realized using sleeve and serious wear or elasticity when reducing when long-term, can be repaired by regulating shell fragment pressure, thereby prolonged the useful life of power supply changeover device, reduce use cost, saved resource.

Description of drawings

Fig. 1 is external structure schematic diagram of the present invention;

Fig. 2 is internal structure schematic diagram of the present invention;

Fig. 3 is transverse sectional view of the present invention;

Fig. 4 is the local enlarged diagram of section of the present invention.

Among the figure: 1, middle shell, 2, upper shell, 3, jack, 4, lower house, 5, base plate, 6, the sleeve support, 7, integral type sleeve, 8, lead, 9, voltage regulation screw, 10, pressure regulation slide block, 11, pressure regulation shell fragment, 12, the pressure regulation chute, 13, intermediate connection terminal 14, binding post, 15, slide block, 16, chute.

Embodiment

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, this power supply changeover device comprises middle shell 1, and the upper shell 2 and the lower house 4 that cooperate installation with it, middle shell 1 is by the base plate 5 that has been threaded, in lower house 4, binding post 14 reliably is connected with intermediate connection terminal 13 by middle shell 1 and base plate 5 enclosed package for binding post 14; As shown in Figure 1, be provided with jack 3 in upper shell 2 position corresponding with sleeve.

Between middle shell 1 and lower house 4, be provided with chute 16, in chute 16, by slide block 15 cooperations sleeve support 6 is installed, sleeve support 6 can be done an amount of slippage along the vertical line direction of sleeve contact-making surface with attaching plug inserted sheet centre-to-centre spacing error change by the effect of slide block 15 and chute 16; Integral type sleeve 7 is installed in the sleeve support 6, and the facade of sleeve support 6 can prevent the distortion of integral type sleeve 7 and play the insulation blocking effect between sleeve as protective surface; The inboard of sleeve support 6 is provided with pressure regulation chute 12, and pressure regulation shell fragment 11 is installed in the pressure regulation chute 12, and passes through the pressure regulation slide block 10 that voltage regulation screw 9 connects, and pressure regulation slide block 10 is pushed down pressure regulation shell fragment 11 by voltage regulation screw 9.

Binding post 14 is built-in clamping plate type binding post, and all electrified body is all hidden and is installed in the shell of binding post 14, has effectively prevented the generation of electric leakage and electric shock phenomenon, and is safe and reliable, durable in use.

To shown in Figure 4, the lead 8 of being drawn by the interface of integral type sleeve 7 is connected to the upper end of intermediate connection terminal 14 as Fig. 2, and can adapt to sleeve support 6 and do an amount of slippage.

Extremely shown in Figure 4 as Fig. 2, in when, when long-term use of power supply changeover device sleeve wearing and tearing or elasticity reduction taking place, can pass through TO upper shell 2, regulate voltage regulation screw 9 drive pressure regulation slide blocks 10 and compress pressure regulation shell fragment 11, and then the pressure of 11 pairs of integral type sleeves 7 of increase pressure regulation shell fragment, keep inserted sheet to contact and contact area with the effective of integral type sleeve 7.

This power supply change-over device has been realized the effect that the inserted sheet of plug contacts with the sleeve face, can significantly improve the ampacity of carrying object, fire, the electric shock accidents of avoiding phenomenons such as heating that the loose contact because of plug and socket produces, sparking to cause reduce the generation of potential safety hazard; Realized simultaneously using sleeve and serious wear or elasticity when reducing when long-term, can have been repaired by regulating shell fragment pressure, thereby prolonged useful life of power supply changeover device, reduced use cost, saved resource.Be applicable to Three-hole socket, three pole sockets of two fixed or portable pole sockets, the two poles of the earth band ground connection, four spring hole scokets and the various modular power supply conversion insert row of three utmost point band ground connection.

Claims

1. power supply changeover device, comprise middle shell (1), and the upper shell (2) and the lower house (4) that cooperate installation with it, middle shell (1) is by the base plate that has been threaded (5), in lower house (4), binding post (14) reliably is connected with intermediate connection terminal (13) binding post (14) by middle shell (1) and base plate (5) enclosed package;

It is characterized in that, between middle shell (1) and lower house (4), be provided with chute (16), in chute (16), by slide block (15) cooperation sleeve support (6) is installed, integral type sleeve (7) is installed in the sleeve support (6), the inboard of sleeve support (6) is provided with pressure regulation chute (12), pressure regulation shell fragment (11) is installed in the pressure regulation chute (12), and passing through the pressure regulation slide block (10) that voltage regulation screw (9) connects, pressure regulation slide block (10) is pushed down pressure regulation shell fragment (11) by voltage regulation screw (9).

2. a kind of power supply changeover device according to claim 1 is characterized in that, binding post (14) is built-in clamping plate type binding post, and all electrified body is all hidden and is installed in the shell of binding post (14).