CN201113009Y

CN201113009Y - Cordless electric connector

Info

Publication number: CN201113009Y
Application number: CNU2007201836124U
Authority: CN
Inventors: 杨宁恩; 谢忠华; 刘新礼
Original assignee: NINGBO SUNLIGHT ELECTRICAL APPLIANCE CO Ltd
Current assignee: Ningbo Sunlight Electrical Appliance Co., Ltd.
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2008-09-10
Anticipated expiration: 2017-09-26

Abstract

The utility model relates to a cordless electric connection device, which comprises an annular plug, and a socket matched with the annular plug. Corresponding electrical contact terminals are respectively arranged inside the plug and the socket. The device is characterized in that a pressure lever for separating a dynamic contact piece and a static contact piece is arranged on at least one dynamic contact piece of the plug; one end of the pressure lever passes through the bottom of the plug and movably contacts the outer circle of the socket; an extension arm hook in the middle of the pressure lever is hung over the dynamic contact piece; an offsetting spring is arranged on the periphery of the other end of the pressure lever, the offsetting spring is used for limiting the pressure lever; the upper end of the offsetting spring is arranged inside a chock. During the process from splicing-starting to splicing-finishing, although a phase line contact of the socket and an external contacting sleeve move relatively, the no voltaic arc is generated between the phase line contact and the external contacting sleeve because a phase line moving contact and a phase line breakback contact are not connected, so that the contacting sleeve is well ensured to enable the cordless electric connection device to have long service life.

Description

Wireless electric connection device

Technical field

The utility model relates to a kind of wireless electric connection device, refers to be used for the wireless electric connection device of electric kettle especially.

Background technology

Existing wireless electric connection device, it comprises annulus plug and the socket that matches with the annulus plug, respectively establishes corresponding electric contact terminal in the plug and socket.The plug one of this device is pegged graft with socket; just form electric loop; begin to be plugged to and peg graft in the process that finishes; electric contact terminal in the plug and the electric contact terminal relative motion in the socket are drawn electric arc through regular meeting, the arc temperature height; especially the electric contact terminal in can this plug of oxidation; in the course of time, it is caused damage, it is low to influence its useful life and fail safe.

The utility model content

The technical problems to be solved in the utility model is: can not produce electric arc in the process that provides a kind of plug and socket to peg graft, thus long, safe wireless electric connection device of life-span.

The technical solution of the utility model is: a kind of wireless electric connection device, comprise annulus plug and the socket that matches with the annulus plug, respectively establish corresponding electric contact terminal in the described plug and socket, it is characterized in that at least one movable contact spring of described plug is provided with the depression bar that dynamic and static contact is separated, one end of described depression bar passes the plug bottom and contacts with the outer toroid activity of socket, adjutage hook in the middle of the depression bar rides on the described movable contact spring, depression bar other end periphery is provided with its spacing back-moving spring, and the upper end of back-moving spring is located in the chock.

The beneficial effects of the utility model are: when plug was not pegged graft, depression bar was in lowest order under the effect of back-moving spring elastic force, and the projection of its hook rides on the phase line movable contact spring, made the phase line moving contact away from the phase line fixed contact.The internal ring wall of plug turns down the cover plate of socket, and the outer toroid of socket is then pushed up the depression bar lower end.When plug and socket had been pegged graft, the outer toroid of socket was up pushed up depression bar and is made it be in highest order, and its projection is separated with the end of phase line movable contact spring, and the phase line movable contact spring sets back, and the phase line moving contact contacts with the phase line fixed contact and the electricity connection.Begin to be plugged to and peg graft in the process that finishes, though the phase line contact of socket and plug outer touches the cover relative motion, because phase line moving contact and phase line fixed contact access failure, phase line contact and touch outward between the cover and can not produce electric arc, it is intact to guarantee to touch cover, makes this arrangements of electric connection long-life.

Description of drawings

Fig. 1 is a basic structure cutaway view of the present utility model.

Fig. 2 is a three-dimensional general assembly drawing of the present utility model.

Fig. 3 is the decomposition diagram of the utility model work.

Fig. 4 is the intermediateness figure of the utility model work.

Fig. 5 is the state of termination figure of the utility model work.

Embodiment

Figure 1 shows that in the utility model basic structure cutaway view, this wireless electric connection device, it comprises annulus plug 8 and the socket 22 that matches with the annulus plug, respectively establishes corresponding electric contact terminal in plug 8 and the socket 22.At least one movable contact spring is provided with the depression bar 13 that dynamic and static contact is separated in the annulus plug 8, one end of depression bar 13 passes plug bottom 7 and contacts with outer toroid 26 activities of socket 22, the hook 16 of the adjutage 15 in the middle of the depression bar 13 rides on the corresponding movable contact spring, depression bar 13 other ends are provided with its spacing back-moving spring 3, and the upper end of back-moving spring 3 is located in the chock 5.Annulus plug 8 main bodys are made of inside and outside

ring wall

11,12, the inside and outside surface of internal ring wall 11 is established the inside and outside cover 10,9 that touches and is adjacent to it, in touch cover 10 and be the zero terminal of plug 8, touch cover 9 outward and be phase terminal, circle ring center establishes center contact 6, this center contact 6 is an earth terminal, and inside and outside cover 10,9 the other end that touches passes plug bottom 7 respectively and is connected with zero line movable contact spring 27, phase line movable contact spring 14.Be provided with the cavity 28 that holds back-moving spring 3 between plug bottom 7 and the chock 5, its sidewall is opened the opening that a voltage supply bar 13 adjutages 15 pass.These cavity 28 diapires are opened a through hole, and its diameter is littler than the diameter of cavity 28.Adjutage 15 is a round platform 18 with the joint of depression bar 13, and its diameter is more smaller than the diameter of cavity 28, but bigger than the through hole of the diapire of cavity 28, depression bar 13 lower end diameter are more smaller than the through hole of cavity 28 diapires, and the height of cavity 28 is suitable with depression bar 13 lower end length.The socket 22 that matches with annulus plug 8 is by interior annulus 21, form with the concentric outer toroid 26 of interior annulus 21, the cover plate 19 between inside and outside

annulus

21,26 and the helical spring 24 that is located at phase line contact 25, zero line contact 23 and supporting plate 19 in the socket 22, this socket 22 is connected with power supply always, and its center is a ground connection cartridge clip 20 of admitting center contact 6.

In the general assembly drawing shown in Figure 2, depression bar 13 lower ends pass the annular groove that enters between the inside and outside

ring wall

11,12 from the diapire through hole of cavity 28, and the round platform 18 in the middle of the depression bar drops in the cavity 28 just.15 openings from cavity 28 of adjutage in the middle of the depression bar 13 pass, and are roughly parallel with phase line movable contact spring 14.Depression bar 13 upper end diameter are littler than its lower end diameter, but little section near round platform 18 is provided with little fin 29 of number symmetrically in the top, the circumference at the outer rim place of fin 29 is more smaller than round platform 18, every fin 29 be an inclined-plane towards the upper end, be beneficial to the periphery that back-moving spring 3 is enclosed within fin 29 like this, 18 on round platform can carry out spacing to the lower end of back-moving spring 3.The end of adjutage 15 is roughly concordant with phase line movable contact spring 14.The end of adjutage 15 is provided with hook 16, and hook 16 warp below phase line movable contact spring 14 is up curved later.Establish a downward projection in the end of hook 16.In non operating state, the projection of hook 16 rides over the end of phase line movable contact spring 14.

Among another embodiment of the present utility model, just the trend of hook 30 is described different with the foregoing description, hook 30 be positioned at phase line movable contact spring 14 above, its tip protrusion is directly pushed up the end of phase line movable contact spring 14, as shown in Figure 3.

In the decomposition diagram shown in Figure 3, the cross section of chock 5 roughly is " Y " shape, the circular hole 4 that a lower end is big, the upper end is little is established in its centre, the footpath, chamber of its aperture, lower end and cavity 28 quite, circular hole 4 upper end inner edges are provided with the thin ring wall of downward extension, so just can the upper end of back-moving spring 3 is spacing in the lower end of circular hole 4 when assembling, depression bar 13 telescopically under the effect of back-moving spring 3 and socket 22 outer toroid 26 passes from the upper end of this circular hole 4.Chock 5 is respectively established an open-work 33 towards two branches of phase line movable contact spring 14 and zero line movable contact spring 27; porcelain rod 31 passes these two open-works 33 and stands on phase line movable contact spring 14 and zero line movable contact spring 27; then paste mutually with bimetal leaf the upper end of porcelain rod 31, so just forms the dry combustion method overtemperature protection system.Chock 5 is established a long-plunger 34 towards the direction of center contact 6, its lower end is little, be provided with one " V " shape fin in its side near circular hole 4, and between center contact 6 and cavity 28, be provided with and the suitable vestibule of long-plunger 34 profiles, chock 5 just is fixed in this vestibule by its long-plunger 34 plugs during assembling, and is simultaneously also that back-moving spring 3 is spacing in chock 5.

Improve as of the present utility model another, set up another hook relative with hook 16 at the end of depression bar 13 adjutages 15, it rides on the zero line movable contact spring 27.

Initial condition figure shown in Figure 1, when plug was not pegged graft, depression bar 13 was in lowest order under the effect of back-moving spring 3 elastic force, and the projection of its hook 16 rides on the phase line movable contact spring 14, makes phase line moving contact 17 away from phase line fixed contact 2.Intermediateness figure shown in Figure 4, the internal ring wall 11 of plug 8 turns down the cover plate 19 of

socket

22, and 26 of the outer toroid of socket 22 are pushed up depression bar 13 lower ends.State of termination figure shown in Figure 5, when plug 8 had been pegged graft with socket 22, the outer toroid 26 of socket 22 was up pushed up depression bar 13 and is made it be in highest order, and its projection is separated with the end of phase line movable contact spring 14, phase line movable contact spring 14 sets back, and phase line moving contact 17 contacts with phase line fixed contact 2 and the electricity connection.Begin to be plugged to and peg graft in the process that finishes, though 9 relative motions are overlapped with outer the touching of plug 8 in the phase line contact 25 of socket 22, but because phase line moving contact 17 and phase line fixed contact 2 access failures, phase line contact 25 and touch cover outward and can not produce electric arc between 9, it is intact to guarantee to touch cover, makes this arrangements of electric connection long-life.

Claims

1, a kind of wireless electric connection device, the socket (22) that it comprises annulus plug (8) and matches with the annulus plug, respectively establish corresponding electric contact terminal in described plug (8) and the socket (22), it is characterized in that at least one movable contact spring is provided with moving in the described plug (8), the depression bar (13) that static contact separates, one end of depression bar (13) passes plug bottom (7) and contacts with the outer toroid (26) of socket (22) is movable, the hook (16) of adjutage (15) rides on the corresponding movable contact spring in the middle of the depression bar (13), depression bar (13) other end is provided with its spacing back-moving spring (3), and the upper end of back-moving spring (3) is located in the chock (5).

2, wireless electric connection device according to claim 1 is characterized in that the end of adjutage (15) is provided with hook (16), and hook (16) is process below phase line movable contact spring (14), and hook rides over the end of phase line movable contact spring (14) to lower process.

3, wireless electric connection device according to claim 1 is characterized in that the end of adjutage (15) is provided with hook (30), and hook (30) is process above phase line movable contact spring (14), and hook rides over the end of phase line movable contact spring (14) to lower process.

4, wireless electric connection device according to claim 1 is characterized in that plug (8) is provided with the spacing chock (5) of a pair of back-moving spring (3), and circular hole (4) is passed in the upper end that its upper end is provided with voltage supply bar (13).

5, according to any one described wireless electric connection device of claim 1 to 4, it is characterized in that the end of depression bar (13) adjutage (15) is set up another hook relative with hook (16), it rides on the zero line movable contact spring (27).