CN2303392Y

CN2303392Y - Electric power plug

Info

Publication number: CN2303392Y
Application number: CN 97218798
Authority: CN
Inventors: 张简光哲
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-28
Filing date: 1997-05-28
Publication date: 1999-01-06
Anticipated expiration: 2007-05-28

Abstract

The utility model relates to an electric power plug. The utility model is mainly composed of a plug body, and the center of the plug body is provided with a slide groove for inserting with a long motion lever. The motion lever is provided with a long slot with a guard sheet for sleeving a slide plate crossed at the bottom of a bimetallic strip and a spring. When the electric appliance connected with the plug generates overcurrent, the meeting point of the bimetallic strip is disengaged with the connecting piece of the conducting wire caused by overheat deformation. The slide plate is capable of pushing by the spring to be insulated between the bimetallic strip and the connecting piece, cutting off the power to achieve the function of security protection. When the plug is pulled, the guard sheet of the motion lever pushes the slide plate back to the bottom of the bimetallic strip, recovering the power.

Description

Attaching plug

The relevant a kind of plug of this practical type particularly a kind ofly can block power supply when overcurrent, to reach the attaching plug of safeguard protection effect.

Because popularizing of electrical appliance; Electrical Safety is paid attention to by the consumer gradually in recent years; therefore; relevant a kind of overcurrent product of outage is automatically developed in a large number; make; but these products remove can be when the electrical appliance current anomaly; make outside the effect of switch jump; a kind of being located on the socket still arranged, when current loading is excessive, power supply is ended; reach the protective effect of Electrical Safety; but because the set socket of this cut-off switch (no-fuse switch) mostly is porous type greatly, when the excessive and escape of load, the user does not know that also which kind of electrical equipment produces current anomaly; and how not know Ying Shuan, not ideal enough.

The main purpose of the type that this is practical; be to provide a kind of attaching plug safe in utilization; be in header body, to establish carriage release lever, bimetal leaf and to vacillate and meet a little slide plate in this bimetal leaf and lead brace; make electrical equipment that plug connects when current anomaly; this slide plate is able to meet a little escape because of bimetal leaf and brace; and intercept between this two elements, to reach protective effect.

Another purpose of the type that this is practical, be to provide a kind of attaching plug of being convenient to recover "on" position, when plug produces outage because of current anomaly, the user only needs this plug is pulled out from socket, again plant again and can reply power supply state, and can all electrical equipment that are plugged in socket all not cut off the power supply as known automatic outage socket, cause the trouble in the use.

For achieving the above object, the utility model is taked following measure:

Attaching plug of the present utility model comprises a loam cake and a lower cover, it is characterized in that, and loam cake, central authorities are provided with a semicircle shape chute, and the chute front end is set as the wall wall than path, and establishes with elongated opening respectively in wall wall both sides, and extends two storage tanks by opening;

Lower cover, central authorities and both sides, be respectively equipped with the semicircle shape chute and the elongated opening that are symmetry with loam cake, the chute front end is set as the wall wall than path, elongated opening then extends two storage tanks, be provided with the prominent rib of a fixing hole in a storage tank rear wherein, be fixed in prominent rib with rivet for the end of a connecting piece; Also comprise

One carriage release lever, be placed in the chute of upper and lower cover, be cylindric, its front end is the pressing part than path, and central authorities are a groove, and is provided with a catch in the groove rear end, to be connected in a spring storage tank, after in storage tank, inserting a spring, make spring be held in the rear wall wall of described chute, form the telescopic resilience of carriage release lever;

One slide plate, the appropriate location of one side is provided with a round slider, and two ends are narrower end face then, make slide block be placed in the groove of carriage release lever, and slide block the place ahead is provided with a spring;

One bimetal leaf, one end are fixed in the L type kink of metallic laminas, and the other end is provided with a through hole, wear for a silver tipped contact rivet, and bimetal leaf is suspended in the slide plate top.

The former plug of described electricity is characterized in that, the wall edge of described header body lower cover both sides storage tank is respectively equipped with microscler breach, bridges for the narrow end face at described slide plate two ends, to form positioning action.

The main feature of the type that this is practical will cooperate the following drawings and embodiment to be described in detail as follows:

Description of drawings:

The schematic perspective view of this practical type of Fig. 1.

The perspective exploded view of this practical type of Fig. 2.

The generalized section of this practical type of Fig. 3.

The user mode schematic diagram of this practical type of Fig. 4.

The outage action schematic diagram of this practical type of Fig. 5.

Please consult Fig. 1 simultaneously, 2, this practical type mainly comprises one by last,

lower cover

1,2 header body of being formed 10, wherein, on,

lower cover

1,2 middle position is established the semicircle shape chute 11 with symmetry respectively, 21, chute 11,21 front end forms the wall wall 111 than path, 211, and in wall wall 111,211 both sides are respectively equipped with elongated opening 121,131 and 221,231, and lower cover 2 and by opening 221,231 extend two

storage tanks

22,23, make metallic laminas 3,4 are able to the breach 31 of its root edge, 41 are cross-placed on opening 221,231, to be placed in storage tank 22, in 23;

One carriage release lever 24, be one cylindric, its front end is the pressing part 241 than path, central authorities are a groove 242, and be provided with one in groove 242 rear ends when sheet 243, to be connected a spring storage tank 244, carriage release lever 24 is placed in the chute 21 of lower cover 2, and insert compression spring 245 in storage tank 244, form the telescopic resilience of carriage release lever 24, for a slide plate 25 with the round slider 251 of one side behind the groove 242 that is nested with carriage release lever 24, insert a spring 252 in the front end of slide block 251, slide plate 25 is vacillated in the groove 242 of carriage release lever 24;

The storage tank 22 of lower cover 2 is provided with the prominent rib 222 of a tool fixing hole 2221, make the through hole 261 of a connecting piece 25 by the one end, rivet 262 with silver tipped contact is fixed in prominent rib 222, and current-limiting resistance 264 and indicator light 265 that the through hole 263 of its other end is connected in power lead and is serially connected with another metallic laminas 4, a bimetal leaf 27 is then established in the top of brace 26, make the set through hole 271 of an end of bimetal leaf, this bimetal leaf 27 is fixed in the fixing hole 321 of the L shaped kink 32 of metallic laminas 3 with rivet 22, the other end of bimetal leaf 27 is then established with another through hole 273, and be arranged in through hole 273 with a silver tipped contact rivet 274, when making bimetal leaf 27 be fixed in metallic laminas 3, be suspended in brace 26 tops, and make its rivet 274 and the rivet 262 of brace form symmetric position, be in contact with one another or disengaged position with formation;

When aforementioned component sets dress is finished; and after loam cake 1 covered; slide plate 25 is cross-placed on bimetal leaf 27 belows; and because the storage tank 22 of lower cover 2; 23 wall edge has microscler breach 223 respectively; 232; the narrow end face 253 at slide plate 25 two ends; 254 can be sticked in breach 223; 232; make its location, two ends; make slide plate 25 smooth-going vacillating in bimetal leaf 27 belows; when header body 10 inserted in socket, slide plate 25 backstops were in the rivet contact 262 of sheet metal 27 with brace 26; 274 the place aheads, and when current loading is excessive; be able to because of bimetal leaf 27 overheated dimorphisms; slide plate 25 is intercepted in rivet contact 262; 274, to cut off the electricity supply, reach the safeguard protection effect.

See also Fig. 3, this practical type is under normality, because the tension force of spring 245, to push away before the carriage release lever 24, the catch 243 of carriage release lever 24 pushes away slide plate 25 in bimetal leaf 27 the place ahead with rivet 262,274 contacts of brace 26, the voltage that metallic laminas 3 is imported, via this bimetal leaf 27 and brace 26 to the electrical equipment that is connected.

And as shown in Figure 4, when plug 10 is plugged in socket, because of the front end pressing part 241 of carriage release lever 24 because of being held in receptacle face, carriage release lever 24 is inwardly pressed, catch 243 breaks away from slide plate 25, the opposite side of slide plate 25 is located at springs 252 in the groove 242 and then is squeezed and constitutes press power to slide plate 25, but because the tension force of spring 252 is less, slide plate 25 is limited to rivet 262,274 contact the place aheads, and can not pass through, so, power supply is promptly by metallic laminas 3,4, and bimetal leaf 27, brace 26, be connected in electrical appliance, reach the effect of power supply, and light indicator light 265, normal with the display voltage supply.

And as shown in Figure 5; when employed electrical appliance because of load abnormal; and electric current is when excessive; this bimetal leaf 27 will make the rivet 262 contact escapes of its rivet 274 contacts and brace 26 because of current overload is out of shape, and form certain interval and indicator light 265 breaths are gone out; so; slide plate 25 is pushed rivet 262 to because of the tension force that is subjected to spring 252; 274 position, therefore and can't be by bimetal leaf 27 conductings to brace 26 with its obstruct, power supply; forming circuit disconnects; reach the safeguard protection effect, when the indicator light 265 that is gone out by breath as the user is discovered, be able to header body 10 is pulled up from socket; to check electrical appliance; and work as header body 10 and pull up into, carriage release lever 24 is subjected to the tension force of spring 245, pushes away before it; relative; catch 243 is pushed slide plate 25 to original position, makes bimetal leaf 27 and brace 26 conducting once more, certainly; because the tension force of spring 245 is much larger than spring 252; therefore, catch 243 has absolute motive force that slide plate 25 is playbacked, and reaches the effect of putting again.

Combine with above-mentioned, the utlity model has following effect:

Attaching plug of the present utility model cooperates vacillating of slide plate with carriage release lever, makes plug when current loading is unusual, Consist of the outage effect, and when plug pulls up, automatically reset, to reach the safeguard protection effect, improvement is commonly used disconnected The electric switch socket needs the whole shortcomings that disconnect of the power supply of socket.

Claims

1. an attaching plug comprises a loam cake and a lower cover, it is characterized in that, and loam cake, central authorities are provided with a semicircle shape chute, and the chute front end is set as the wall wall than path, and establishes with elongated opening respectively in wall wall both sides, and extends two capacity grooves by opening;

2. attaching plug according to claim 1 is characterized in that, the wall edge of described header body lower cover both sides storage tank is respectively equipped with microscler breach, bridges for the narrow end face at described slide plate two ends, to form positioning action.