CN101409402A

CN101409402A - Safety protection type electric connection coupler

Info

Publication number: CN101409402A
Application number: CNA2008101622035A
Authority: CN
Inventors: 柯赐龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-14
Filing date: 2008-11-14
Publication date: 2009-04-15
Anticipated expiration: 2028-11-14
Also published as: CN101409402B

Abstract

The invention relates to a safety protection electric connection coupler which comprises a socket body and a plug body that are mutually inserted; the socket body comprises a socket shell and an electrified wafer group inside the socket shell; the plug body comprises a plug shell and an electrified wafer group inside the plug shell; the safety protection electric connection coupler is characterized in that the electrified wafer group is sealed and hooded in the socket shell; the upper closed surface of the socket shell is provided with a plurality of jacks; the electrified wafer group is provided with a lower wafer which can penetrate the jacks and is conducted and contacted with the electrified wafer group; the safety protection electric connection coupler also comprises a slide cover provided with a punch hole; the slide cover can be limited in the socket shell in a sliding way; the socket shell is provided with an elastic part which is matched with the slide cover; one side of the slide cover is provided with an extending part; the inner wall of the plug shell is provided with a pushing part; under the state that the plug shell is inserted in the socket shell, the pushing part pushes the extending part on the slide cover to lead the punch hole on the slide cover to be aligned with the jacks. As the slide cover seals the jacks all the time, liquid is effectively prevented from permeating into the inside of the socket body from the outside of the socket body, thus ensuring the safety on use.

Description

A kind of safety protection type electric connection coupler

Technical field

The present invention relates to a kind of electric connection coupler that is used for as separate type cordless electric appliances such as wireless electric kettle, wireless frying pan, cordless electric irons, relate in particular to a kind of safety protection type electric connection coupler.

Background technology

In separate type electrical equipment such as existing wireless electric kettle, wireless frying pan, cordless electric iron, all be provided with electric connector, generally comprise the plug body of the body bottom that is arranged on electrical equipment, and a power supply pedestal that matches with it is provided with a socket, when being shelved on the electrical equipment body on the pedestal, plug body and socket plug together mutually, thereby realize the power supply to the electrical equipment body.In above-mentioned cordless electric appliance, thermally-responsive controls generally also is housed on plug body, and provides power, on-off circuit under suitable situation for the contact deciliter mechanism of control circuit break-make in the plug body.

The kind of electric connector is a lot, as publication number is that " cordless electric appliance and the joint thereof " of CN1135270A provides a kind of rotary electric connector, it comprises a male contact (being fittings body) and a cloudy receptacle terminal that engages (being socket), described male contact comprises a center conductive post binding post, with a ring connection terminal concentric with the post binding post, cloudy receptacle terminal has the perforate on its front end, in order to admitting the ring connection terminal of newel binding post and described male contact, receptacle terminal has and is used for the electric contact separately that engages with the described binding post of described male contact.

And for example a patent No. is that the Chinese utility model patent " electric connector " of ZL02116171.2 (notification number is CN1385933Y) has disclosed and a kind ofly like this provides the electric connector that is electrically connected between cordless electric appliance main body and base, base links to each other with power supply in use, connector has spill connector part and convex-shaped connector part, convex-shaped connector comprises that partly electrical contact stretches into groove wherein, the spill connector comprises the electrical contact that is used for the connection of the contact in the groove of convex-shaped connector, spill is connected with the mode that relatively rotates the location of convex-shaped connector part with 360 °, the switch that convex-shaped connector partly is furnished with separation links to each other with electrical contact, electrical contact has in the annular groove that stretches into connector and apart a plurality of movable switch actuator, the spill connector part is furnished with annular surface, the setting on this surface makes it can protrude into groove, and is connected actuator and closing in sequence switch when spill partly cooperates with convex-shaped connector.

Aforementioned various scheme is because socket is in power supply state always, the contact that promptly is positioned at heart hole wherein or cannelure is in electriferous state all the time, therefore, for preventing the generation of electric shock accidents, simultaneously also in order to guarantee the effect of pegging graft, the applicant is that the Chinese invention patent " a kind of electric connector that is used for cordless electric appliance " of ZL02136488.5 (notification number is CN1396226C) has disclosed a kind of like this electric connector that is used for cordless electric appliance in a patent No., include and to peg graft mutually and can counterrotating plug body and socket, the socket central part of end face thereon has a jack, and have a cannelure concentric with this jack, in jack and cannelure, be respectively arranged with and award electric connecting terminals, and plug body is provided with accordingly and is subjected to electrfic centre binding post and peripheral binding post, engage with the center hub of socket and the electric connecting terminals of awarding in the cannelure respectively, in described socket, also be provided with: at least one contact of powering, this power supply contact links to each other with the live wire or the zero line of power supply; And at least one contact deciliter mechanism, when plug body is not inserted socket, described power supply contact award electric connecting terminals between the holding contact corresponding with it often opened, and when plug body was inserted socket, this contact deciliter mechanism made this normally opened contact that closure is switched under the effect of plug body.This invention is provided with awarding electricity and powering two cover contact groups of mutual correspondence at socket, and when plug body is not inserted socket, at least an award electric contact point corresponding with it that links to each other with power firestreak or zero line in the power supply contact group remains normally open, make that visible on the socket surface to award electric contact point not charged all the time, guaranteed safe handling.

Analysis-by-synthesis aforementioned approaches case, outside the jack of their socket or annular slot all expose again, extraneous dust enters in the socket easily, contact vulnerable to pollution in the socket and damaging, even more serious is, in liquid enters socket after, easily make the contact in the socket produce short circuit, and the damage socket, even can cause safety problems such as electric leakage.At aforementioned present situation, existing electric connection coupler also can be further improved.

Summary of the invention

Technical problem to be solved by this invention be provide at above-mentioned prior art present situation a kind of when plug body is not inserted socket the jack on the socket remain the safety protection type electric connection coupler of closed state, can prevent effectively that liquid from infiltrating the security incident cause, have that fail safe is good, the advantage of long service life.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of safety protection type electric connection coupler, comprise socket and the plug body that to peg graft mutually, wherein, socket comprises jack housing and is arranged on awards the electric contact point group in the jack housing, and plug body comprises plug body and is arranged on and is subjected to the electric contact point group in the plug body; It is characterized in that: described jack housing will be awarded the sealing of electric contact point group and will be covered with in it, have several on the last sealing surface of jack housing and award the corresponding jack of group number of electric contact point group, correspondence is describedly had by the electric contact point group to pass to award the electric contact point group following contact that conduction contacts in described jack and the jack housing; This electric connection coupler also comprises a slip lid, this slip lid jack housing relatively is limited in the jack housing slippingly, have on the slip lid with described jack and bore a hole accordingly, be provided with an elastic component that slip lid is remained cover in described jack trend in the jack housing, one side of slip lid has the extension that passes the jack housing sidewall, the inwall of plug body has the pushing part that matches with extension, be plugged under the jack housing state at plug body, the extension that this pushing part promotes on the slip lid makes the perforation on the slip lid align with described jack.

Above-mentioned slip lid is arranged on the interior structure of jack housing, is provided with chute in the both sides of jack housing internal upper part, and described slip lid two ends are shelved in the described chute and can move relative to chute.It is serious set-up mode, also can adopt similar structures that the slip lid slip is arranged in the jack housing certainly.

Above-mentioned elastic component is for roughly being the leaf spring of ", and this leaf spring is spacing in jack housing, and the flanging of leaf spring tail end and the rear end face of slip lid are conflicted.Adopt leaf spring to have simple and reasonable advantage as elastic component, certainly elastic component can also be a torsion spring, only need this moment torsion spring is sheathed and be positioned on the projection of jack housing by jump ring is spacing, allow an end of torsion spring be resisted against the back inwall of jack housing, the other end is resisted against on the rear end face of slip lid and gets final product; Flexible again also can be spring, its inwall after jack housing is provided with a consistent bar that extends with the slip lid moving direction, and the rear wall of slip lid is passed in this bar activity, this spring housing is located on this bar again, spring one end inwall after the jack housing, the other end is resisted against the rear end face of slip lid.

The spacing structure in jack housing of above-mentioned leaf spring is, on the lower surface of sealing surface on the jack housing, be provided with column, the head end of leaf spring is set on this column, correspondence has two guide vane end stops that are positioned at the column both sides on the back madial wall of jack housing, guide vane end stop and leaf spring two lateral wall CONTACT WITH FRICTION, the rear end face of slip lid is provided with a recess, and the flanging of the tail end of this leaf spring is stuck in the described recess.This limit method has the simple advantage of the leaf spring of installation, and because the dual-side of leaf spring remains the outer trend of opening, so leaf spring dual-side and guide vane end stop remain bigger friction trend, guarantees the fixing that leaf spring is spacing.

The extension of above-mentioned slip lid one side has two, and the outer face of each extension is the inclined-plane, and the pushing part of corresponding plug body inwall also is two, and the lower surface of pushing part is the inclined-plane that matches with the extension ramp.Two extensions and corresponding two pushing parts are set, promote slip lid, realize that steadily the purpose and the pushing part of promotion slip lid are that the inclined-plane cooperates with the contact-making surface of extension, be convenient to slippage relatively between the two by multiple spot.

Have two on the sidewall of above-mentioned jack housing and run through the described notch of going up sealing surface, described extension passes this notch, and is plugged under the jack housing state at plug body, and the pushing part of described plug body inwall to small part is positioned at corresponding notch.Notch is set on jack housing, can make the pushing part after promoting extension, the part of pushing part is positioned at respective slot, guarantee the grafting of plug body and jack housing after, the outer wall of jack housing and the inwall of plug body are fitted nearer, effectively avoid both to rock relatively.

The above-mentioned electric contact point group of awarding has three groups at least, wherein, awarding electric contact point for first group is made up of first movable contact spring and first static contact, first static contact links to each other with the live wire of power supply, second group is awarded electric contact point is an independent the second wafer, this the second wafer links to each other with earth connection, awarding electric contact point for the 3rd group is made up of the 3rd movable contact spring and the 3rd static contact, the 3rd static contact links to each other with the zero line of power supply, be plugged under the jack housing state first movable contact spring at plug body, under the 3rd movable contact spring can and promote in each time contact contact respectively with first static contact, the 3rd static contact conducting.It is the consistent set-up mode of awarding the electric contact point group, and this set-up mode can be guaranteed not to be plugged under the state of socket in plug body, and feasible nearest from socket surface to award electric contact point not charged all the time, further guarantees safe in utilization.Because the present invention will award the electric contact point group and be enclosed in the jack housing, the therefore described electric contact point group of awarding also can only be independent metal contact but in fact.

The above-mentioned electric contact point group of awarding has four groups, and wherein, the 4th group is awarded electric contact point is the 4th an independent contact, correspondence, and what be subjected to the electric contact point group has that contact and the 4th contact promote to contact.The 4th contact is set can provide the miscellaneous function of electric connector as required.

Compared with prior art, the invention has the advantages that: the present invention is enclosed in the electric contact point group of awarding in the socket in the jack housing, on sealing surface on the jack housing, have the jack that several insert for the following contact that is subjected to the electric contact point group, also be provided with the slip lid that this jack can be closed in the socket, when plug body is not inserted socket, slip lid is closed jack all the time, prevent that effectively liquid from infiltrating in it from socket is outside, and cause the security incident of the electric leakage of socket, guarantee the safety used, and it can also prevent that dust from entering the socket internal contamination and awarding the electric contact point group in it, has increased the useful life of this electric connection coupler.

Description of drawings

Fig. 1 is the positive perspective view (plug body is plugged on state with socket) of the embodiment of the invention;

Fig. 2 is the perspective view of plug body in the embodiment of the invention;

Fig. 3 is the back side perspective view one (plug body is plugged on state with socket) of the embodiment of the invention;

Fig. 4 is the back side perspective view two (plug body is plugged on state with socket) of the embodiment of the invention;

Fig. 5 for socket in the embodiment of the invention positive perspective view (slip lid is in closed state);

Fig. 6 for socket in the embodiment of the invention under back side perspective view (the electric contact point group is awarded in removal and slip lid is in closed state);

Fig. 7 for socket in the embodiment of the invention positive perspective view (slip lid is in open mode);

Fig. 8 for socket in the embodiment of the invention under back side perspective view (the electric contact point group is awarded in removal and slip lid is in open mode);

Fig. 9 is the three-dimensional echelon sectional view of the utility model embodiment;

Figure 10 is for awarding the electric contact point group and being subjected to the schematic perspective view of electric contact point group under contact condition in the embodiment of the invention.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Be depicted as a preferred embodiment of the present invention as Fig. 1～10.

A kind of safety protection type electric connection coupler, comprise socket 1 and the plug body 2 that to peg graft mutually, wherein, socket 1 comprises jack housing 3 and is arranged on awards electric contact point group 4 in the jack housing 3, and plug body 2 comprises plug body 5 and is arranged on and is subjected to electric contact point group 6 in the plug body 5;

Jack housing 3 will be awarded 4 sealings of electric contact point group and will be covered with in it, have on the last sealing surface 31 of jack housing 3 four with the corresponding jack 311 of the group number of awarding electric contact point group 4, the number of jack 311 is identical with the group number of awarding electric contact point group 4, the group number of awarding electric contact point group 4 generally has three at least, link to each other with live wire, zero line and the ground wire of power supply respectively, correspondingly, had by electric contact point group 6 can to pass to award the electric contact point group following contact 61 that 4 conductions contact in described jack 311 and the jack housing 3.

This electric connection coupler also comprises a slip lid 7, slip lid 7 upper surfaces have four and the 311 corresponding perforation 71 of described jack, slip lid 7 jack housing 3 relatively is limited in the jack housing 3 slippingly, slip lid 7 contacts with the lower surface of last sealing surface 311, can improve the sealing of slip lid 7 and last sealing surface 311 like this, slip lid 7 is arranged in the jack housing 3 by following structure, is provided with chute 32 in the both sides on jack housing 3 inner chamber tops, and slip lid 7 two ends are shelved in the chute 32 and can move relative to chute 32.

The anterior end surface of slip lid 7 also has two extensions 72 that stretch out and be offset flat shape, the outer face of extension 72 is inclined-plane 721, this two extension 72 is provided with at interval, have two on the sidewall of jack housing 3 and run through the described notch 35 of going up sealing surface 31, this notch 35 is corresponding with extension 72, promptly passes from notch 35 for extension 72.

Be provided with an elastic component that slip lid 7 is remained cover in described jack 311 trend in the jack housing 3, this elastic component is for roughly being the leaf spring 8 of ", this leaf spring 8 is spacing in jack housing 3, the flanging 81 of leaf spring 8 tail ends is conflicted with the rear end face of slip lid 7, like this under the state that plug body 5 is not pegged graft with jack housing 3, leaf spring 8 promotes slip lid 7, make jack 311 dislocation on the sealing surface 31 on perforation 71 and the jack housing on the slip lid 7, slip lid 7 covers in jack 311, makes extension 72 stretch out notch 35 on the socket sidewall simultaneously.

Leaf spring 8 spacing structures in jack housing 3 are, on the lower surface of sealing surface on the jack housing 31, be provided with column 33, the head end of leaf spring 8 is set on this column 33, correspondence has two guide vane end stops 34 that are positioned at column 33 both sides on the back madial wall of jack housing 3, guide

vane end stop

34 and 8 liang of lateral wall CONTACT WITH FRICTION of leaf spring, the rear end face of slip lid 7 is provided with a recess 73, and the flanging 81 of the tail end of this leaf spring is stuck in the described recess 73.

The inwall of plug body 5 has two pushing parts 51 that match with extension 72, the lower surface of pushing part 51 is the inclined-plane 511 that matches with extension ramp 721, be plugged under jack housing 3 states at plug body 5, the extension 72 that this pushing part 51 promotes on the slip lid 7 makes the perforation 71 on the slip lid 7 align with described jack 311, and pushing part 51 to the small part of plug body 5 inwalls is positioned at corresponding notch 35 simultaneously.

Also have awarding the electric contact point group and can adopt following structure in the socket, award electric contact point group 4 and have three groups, wherein, awarding electric contact point for first group is made up of first movable contact spring 41 and first static contact 42, first static contact 42 links to each other with the live wire of power supply, second group is awarded electric contact point is an independent the second wafer 43, this the second wafer 43 links to each other with earth connection, awarding electric contact point for the 3rd group is made up of the 3rd movable contact spring 44 and the 3rd static contact 45, the 3rd static contact 45 links to each other with the zero line of power supply, be plugged under jack housing 3 states first movable contact spring 41 at plug body 5, under the 3rd movable contact spring 44 can and promote in each time contact 61 contact respectively with first

static contact

42,45 conductings of the 3rd static contact.This is awarded electric contact point group set-up mode and can guarantee not to be plugged under the state of socket in plug body, and feasible nearest from the socket surface to award electric contact point not charged all the time, further guarantees safe in utilization.Because the present invention will award the electric contact point group and be enclosed in the jack housing, the therefore described electric contact point group of awarding also can only be independent metal contact but in fact.

Awarding electric contact point group 4 and also can adopt following structure in the socket, award the electric contact point group and have four groups, promptly on aforementioned basis of awarding the electric contact point group, increase the 4th group and award electric contact point, the 4th group is awarded electric contact point is the 4th an independent contact 46, correspondence is subjected to the contact 61 that has of electric contact point group to promote to contact with the 4th contact 46.Present embodiment just adopts this to award electric contact point group structure.

Operation principle of the present invention and process are as follows:

Under the normal condition, slip lid 7 remains the trend of reach under the effect of leaf spring 8, promptly under the state that plug body 2 is not pegged graft with socket 1, leaf spring 8 promotes slip lid 7, make jack 311 dislocation on the sealing surface on perforation 71 and the jack housing on the slip lid 7, slip lid 7 covers in jack 311, makes extension 72 stretch out notch 35 on the socket sidewall simultaneously.Owing to award electric contact point group 4 and be not sealed in all the time in the jack housing 3 under the operating state, guarantee that liquid can not enter jack housing 3 and influences and award electric contact point group 4 in it, causes the danger of short circuit or contact.

Under the operating state, promptly be plugged under socket 1 state in plug body 2, plug body 5 covers on the jack housing 3, the extension 72 that pushing part 51 in the plug body 5 promotes on the slip lid 7, extension 72 overcomes the resilient rear-moving of leaf spring 8 together in company with slip lid 7, perforation 71 on the slip lid 7 is alignd with described jack 311, pushing part 51 to the small part of plug body 5 inwalls is positioned at corresponding notch 35, simultaneously, the electric contact point group 4 of awarding that passed in jack 311 and perforation 71 and the socket by the following contact 61 of electric contact point group 6 is conducted electricity and is contacted electric connection coupler work.

Behind the firm socket of plug body, because the restriction that extension breaks away from the pushing part on the slip lid, slip lid 7 resets under leaf spring 8 effects.

Claims

1, a kind of safety protection type electric connection coupler, comprise socket (1) and the plug body (2) that to peg graft mutually, wherein, socket (1) comprises jack housing (3) and is arranged on awards electric contact point group (4) in the jack housing, and plug body (2) comprises plug body (5) and is arranged on and is subjected to electric contact point group (6) in the plug body (5); It is characterized in that:

Described jack housing (3) will be awarded electric contact point group (4) sealing and will be covered with in it, have several on the last sealing surface (31) of jack housing (3) and award the corresponding jack of group number (311) of electric contact point group (4), correspondence is describedly had by electric contact point group (6) to pass to award electric contact point group (4) the following contact (61) that conduction contacts in described jack (311) and the jack housing;

This electric connection coupler also comprises a slip lid (7), this slip lid (7) jack housing (3) relatively is limited in the jack housing (3) slippingly, have on the slip lid (7) and the corresponding perforation of described jack (311) (71), being provided with one in the jack housing (3) makes slip lid (7) remain the elastic component that covers in described jack (311) trend, one side of slip lid (7) has the extension (72) of jack housing of passing (3) sidewall, the inwall of plug body (5) has the pushing part (51) that matches with extension (72), be plugged under jack housing (3) state at plug body (5), the extension (72) that this pushing part (51) promote on the slip lid makes the perforation (71) on the slip lid align with described jack (311).

2, safety protection type electric connection coupler according to claim 1, it is characterized in that: the structure that described slip lid (7) is arranged in the jack housing (3) is, both sides at jack housing (3) internal upper part are provided with chute (32), and described slip lid (7) two ends are shelved in the described chute (32) and can move relative to chute (32).

3, safety protection type electric connection coupler according to claim 2, it is characterized in that: described elastic component is for roughly being the leaf spring (8) of ", this leaf spring (8) is spacing in jack housing (3), and the flanging (81) of leaf spring (8) tail end is conflicted with the rear end face of slip lid (7).

4, safety protection type electric connection coupler according to claim 3, it is characterized in that: the spacing structure in jack housing (3) of described leaf spring (8) is, on the lower surface of sealing surface on the jack housing (31), be provided with column (33), the head end of leaf spring (8) is set on this column (33), correspondence has two guide vane end stops (34) that are positioned at column (33) both sides on the back madial wall of jack housing (3), guide vane end stop (34) and leaf spring (8) two lateral wall CONTACT WITH FRICTION, the rear end face of slip lid (7) is provided with a recess (73), and the flanging of the tail end of this leaf spring (81) is stuck in the described recess (73).

5, safety protection type electric connection coupler according to claim 1, it is characterized in that: the extension (72) of described slip lid (7) one sides has two, the outer face of each extension (72) is inclined-plane (721), the pushing part (51) of corresponding plug body inwall also is two, and the lower surface of pushing part (51) is the inclined-plane (511) that matches with extension ramp (721).

6, safety protection type electric connection coupler according to claim 4, it is characterized in that: have two on the sidewall of described jack housing (3) and run through the described notch (35) of going up sealing surface, described extension (72) passes this notch (35), and be plugged under jack housing (3) state at plug body (5), the pushing part of described plug body inwall (51) to small part is positioned at corresponding notch (35).

7, according to the described safety protection type electric connection coupler of arbitrary claim in the claim 1～6, it is characterized in that: the described electric contact point group (4) of awarding has three groups at least, wherein, awarding electric contact point for first group is made up of first movable contact spring (41) and first static contact (42), first static contact (42) links to each other with the live wire of power supply, second group is awarded electric contact point is an independent the second wafer (43), this the second wafer (43) links to each other with earth connection, awarding electric contact point for the 3rd group is made up of the 3rd movable contact spring (44) and the 3rd static contact (45), the 3rd static contact (45) links to each other with the zero line of power supply, be plugged under jack housing (3) state first movable contact spring (41) at plug body (5), under the 3rd movable contact spring (44) can and promote in each time contact (61) contact respectively with first static contact (42), the 3rd static contact (45) conducting.

8, safety protection type electric connection coupler according to claim 7, it is characterized in that: the described electric contact point group (4) of awarding has four groups, wherein, the 4th group is awarded electric contact point is independent the 4th contact (46), correspondence, what be subjected to electric contact point group (6) has that contact (61) and the 4th contact (46) promote to contact.