CN1566774A

CN1566774A - Electric kettle thermoregulator

Info

Publication number: CN1566774A
Application number: CN 03131983
Authority: CN
Inventors: 蒋仙保
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-21
Filing date: 2003-06-21
Publication date: 2005-01-19
Anticipated expiration: 2023-06-21
Also published as: CN100370386C

Abstract

An electrothermal water jug thermostat has two parts of a coupling assembly and a main body assembly. The coupling assembly has a casing, a wiring lug mounted in the casing, a ground lug, a movable contact spring, and an L-N pole contact piece, the movable contact spring being fitted with a support. The main body assembly has a main body, a temperature control strip mounted in the main body, a jump bar mounted on the main body, an L-N pole piece and a ground lug. The temperature control strip has a low temperature strip fitted with a contact of the jump bar and a high temperature strip mounted on a base plate. The base plate is connected with upside of the main body, and is in contact with the ground lug of the thermostat. The ground lug connects the L-N pole wiring lug of the thermostat, and the L-N pole wiring lug is fitted with the L-N pole piece. The main body assembly also has an L pole copper coil and an N pole copper coil mounted at inner-outer wall of a contact pin, an L-N pole contact piece and a push rod mounted in the contact pin jack wall of the casing, a movable contact spring in contact with the push rod upward, and a small grounded shaft mounted in the cylindrical contact pin and fitted with the ground lug.

Description

The electric kettle thermostat

Technical field

The present invention relates to temperature controller, it is supporting to be mainly used in electric kettle, also can be used on other relevant electric heating products.

Background technology

Electric kettle is because easy to use, and power is big, and firing rate is fast, compares health again, is used widely, and especially hotels have also saved attendant's workload.But electric kettle with water boiled after, need cut off the electricity supply automatically, perhaps problems such as dry combustion method can appear in misoperation sometimes, so need the configuration thermostat.Though prior art has multiple electric kettle thermostat, but still exist following defective: the one, the connector of thermostat is after energized, its visual metallic conductor is no matter all energisings all the time, the potential safety hazard that causes human body to get an electric shock are accidentally mismatched together in cooperation with main component; The 2nd, thermostat main component and base fit clearance size adjustment ability are weak, bad adaptability, are easy to generate fault; The 3rd, the heat-dissipating space of thermostat main component is little, and thermostat self is short useful life; The 4th, thermostat uses the porcelain rod to do the transmitting device of deenergization, complex structure; The 5th, each metalwork fixed form disunity, maintenance trouble.

Summary of the invention

The present invention provides a kind of safe in utilization, reliable, adaptable electric kettle thermostat in order to overcome the defective of prior art.The technical scheme of this electric kettle thermostat is: formed by being installed in the body assembly two large divisions who connects the coupling assembling of power supply in the base and be installed in the kettle bottom, coupling assembling has a housing, male blade, grounding insert-pin and movable contact spring are installed in the housing, and L, N utmost point contact chip, silver contact is arranged on the male blade, and movable contact spring matches with support; Body assembly has a main body, temperature control sheet and pogo stick are installed in the main body, L, N pole piece and grounding insert-pin, it is characterized in that described temperature control sheet is low temperature sheet and high temperature sheet, the low temperature sheet is mounted in the bottom of main body, the low temperature sheet matches with the contact of pogo stick, pogo stick is installed on the main body, the high temperature sheet is installed on the base plate, base plate links to each other with main body top, base plate contacts with the thermostat grounding insert-pin, grounding insert-pin connects thermostat LN utmost point male blade, LN utmost point male blade matches with thermostat LN pole piece, the LN pole piece connects L utmost point copper band, L utmost point copper band 9 is installed in main body cylindrical shape contact pin outer wall, at the inwall of contact pin N utmost point copper coin is installed, L utmost point copper band contacts with coupling assembling L utmost point contact chip, N utmost point copper band contacts with N utmost point contact chip, be shaped on the contact pin jack in the coupling assembling housing, jack matches with contact pin, matches with push rod in the jack in cylindrical contact pin bottom, the push rod lower end contacts with movable contact spring, the little axle of ground connection is installed in cylindrical contact pin, and the little axle of ground connection top connects the thermostat grounding insert-pin, matches with the grounding insert-pin of coupling assembling in the bottom.On movable contact spring and connector holder, the extension spring of connection is arranged.The heat radiation chamber is arranged between base plate and main body.L utmost point contact chip and N utmost point contact chip are installed in respectively in the contact pin Socket walls.The contact of LN pole piece vertically contacts with the contact of LN utmost point inserted sheet is upper and lower.Male blade and connector holder etc. are fixed by screw.Pogo stick has the stator spring.This programme compared with the prior art, have following characteristics: the one, be shaped on the cylindrical shape contact pin in the main body and cooperate with contact pin jack in the connector housing, both main contacts are combined together fully by post and hole, particularly movable contact spring is contacted with male blade by lower push rod, just can make whole circuit form the closed-loop path and conduct electricity, otherwise visual metallic conductor is not charged all the time, safety, reliable.The 2nd, outer wall and inwall with L and N utmost point copper band installation contact pin are installed in L and N utmost point contact chip in the contact pin Socket walls, and fixed, contact performance is good.The 3rd, movable contact spring and connector holder adopt the extension spring structure, have guaranteed the clossing pressure between two normally opened contacts, move secure.The 4th, LN pole piece and LN utmost point inserted sheet adopt up and down vertically contact-making surface, and it is big that fit clearance is regulated leeway, can not be offset.The 5th, the heat radiation cavity space between base plate and main body top is big, makes main component keep constant scope, increases useful life.The 6th, securing members such as metal parts employing screw are fixed, and are easy to maintenance.

Description of drawings

Fig. 1 is an electric kettle thermostat organigram of the present invention;

Fig. 2 is an electric kettle thermostat body assembly schematic diagram of the present invention;

Fig. 3 is an electric kettle thermostat coupling assembling schematic diagram of the present invention.

Embodiment

The invention discloses a kind of electric kettle thermostat, is a kind of dual three sheet metal temp sensing controllers, and a slice low temperature sheet 7 uses two high temperature sheets 3, and wherein a slice high temperature sheet is standby, perhaps more insurance.Main structure is formed by being installed in body assembly (as shown in Figure 2) two large divisions who connects the coupling assembling (as shown in Figure 3) of power supply in the electric kettle base and be installed in the kettle bottom, coupling assembling has a housing 17, male blade 11, grounding insert-pin 12 and movable contact spring 14 are installed in the housing, and L, N utmost point contact chip, silver contact 13 is arranged on the male blade 11, and movable contact spring 14 matches with support 19; Body assembly has a main body 8; temperature control sheet and pogo stick 5 are installed in the main body, and L, N pole piece and grounding insert-pin 22, main feature is that the temperature control sheet has low temperature sheet 7 and high temperature sheet 3; low temperature sheet 7 is installed in the bottom of main body 8; the low temperature sheet is a slice, belongs to first class of protection, when water is boiled; water vapor acting is in low temperature sheet 7; make its action and pass to the contact 27 of pogo stick 5, the pogo stick action is finished automatically cut off the electricity supply, pogo stick 5 is installed on the main body 8.High temperature sheet 3 is installed on the base plate 1, and base plate 1 links to each other with main body 8 tops, and high temperature sheet 3 can be two, if a slice is malfunctioning, another sheet is still guaranteed.The effect of high temperature sheet is that kettle is under the dry-fire condition when 7 protections of low temperature sheet are malfunctioning, and the high temperature sector-meeting arrives about 140 ℃ actions and passes to pogo stick 5 at heat generating components, makes the pogo stick action, finishes the second level protection of cutting off the electricity supply automatically.A bigger heat radiation chamber 29 is arranged between base plate 1 and the main body 8, the main component temperature can be remained in the constant scope, increase the useful life of thermostat.Base plate 1 contacts with thermostat grounding insert-pin 22, and grounding insert-pin 22 connects thermostat LN utmost point male blade 2, and LN utmost point male blade 2 has contact 24 to match with the contact 25 of thermostat LN pole piece 4, the upper and lower contact in two contacts, and it is big to regulate leeway, good reliability.LN pole piece 4 connects L utmost point copper bands 9, and L utmost point copper band 9 is installed in main body 8 cylindrical shape contact pins 26 outer walls, at the inwall of contact pin 26 N utmost point copper band 20 is installed, and has had the cylindrical shape contact pin that L is installed, N utmost point copper band is solid and reliable.L utmost point copper band 9 contacts with coupling assembling L utmost point contact chip 10, N utmost point copper band 20 contacts with N utmost point contact chip 21, in coupling assembling housing 17, be shaped on contact pin jack 28, jack 28 matches with contact pin 26, match with push rod 16 in the jack 28 in cylindrical contact pin 26 bottoms, accurate positioning, good reliability.Push rod 16 lower ends contact with movable contact spring 14, and the little axle 23 of ground connection is installed in cylindrical contact pin 26, and the little axle of ground connection 23 tops connect thermostat grounding insert-pin 22, match with the grounding insert-pin 12 of coupling assembling in little axle bottom.Be connected extension spring 15 at movable contact spring 14 with employing on the connector holder 19 and link to each other, the clossing pressure between two normally opened contacts of the contact on the assurance movable contact spring 14 and the silver contact 13 of male blade uses the extension spring flexibility big, increases adaptability.L utmost point contact chip 10 and N utmost point contact chip 21 are installed in respectively in contact pin jack 28 walls, construct more hiddenly, contact with N utmost point copper band with L.Fixing by screw 30,18 for metalworks such as male blade 11 and connector holders 19, installation, maintenance is convenient.Its pogo stick 5 has stator spring 6, and with good reliability in the insertion main body 8 of sheet spring 6.

Claims

1, electric kettle thermostat, formed by being installed in the body assembly two large divisions who connects the coupling assembling of power supply in the base and be installed in the kettle bottom, coupling assembling has a housing (17), male blade (11) is installed in the housing, grounding insert-pin (12) and movable contact spring (14), and (L, N) utmost point contact chip, silver contact (13) is arranged on the male blade (11), movable contact spring (14) matches with support (19); Body assembly has a main body (8), temperature control sheet and pogo stick are installed in the main body, (L, N) pole piece and grounding insert-pin (22), it is characterized in that described temperature control sheet is low temperature sheet (7) and high temperature sheet (3), low temperature sheet (7) is installed in the bottom of main body (8), low temperature sheet (7) matches with the contact (27) of pogo stick (5), pogo stick (5) is installed on the main body (8), high temperature sheet (3) is installed on the base plate (1), base plate (1) links to each other with main body (8) top, base plate (1) contacts with thermostat grounding insert-pin (22), grounding insert-pin (22) connects thermostat (LN) utmost point male blade (2), (LN) utmost point male blade (2) matches with thermostat (LN) pole piece (4), (LN) pole piece (4) connects (L) utmost point copper band (9), (L) utmost point copper band (9) is installed in main body (8) cylindrical shape contact pin (26) outer wall, inwall at contact pin (26) is installed (N) utmost point copper band (20), (L) utmost point copper band (9) contacts with coupling assembling (L) utmost point contact chip (10), (N) utmost point copper band (20) contacts with (N) utmost point contact chip (21), in coupling assembling housing (17), be shaped on contact pin jack (28), jack (28) matches with contact pin (26), match with push rod (16) in the jack (28) in cylindrical contact pin (26) bottom, push rod (16) lower end contacts with movable contact spring (14), the little axle of ground connection (23) is installed in cylindrical contact pin (26), the little axle of ground connection (23) top connects thermostat grounding insert-pin (22), matches with the grounding insert-pin (12) of coupling assembling in the bottom.

2, electric kettle thermostat as claimed in claim 1 is characterized in that on movable contact spring (14) and the connector holder (19) extension spring of connection (15) being arranged.

3, electric kettle thermostat as claimed in claim 1 is characterized in that between base plate (1) and the main body (8) heat radiation chamber (29) being arranged.

4, electric kettle thermostat as claimed in claim 1, it is characterized in that (L) utmost point contact chip (10) and (N) utmost point contact chip (21) be installed in respectively in contact pin jack (28) wall.

5, electric kettle thermostat as claimed in claim 1 is characterized in that the contact (25) of (LN) pole piece (4) and upper and lower the contacting in contact (24) of (LN) utmost point inserted sheet (2).

6, electric kettle thermostat as claimed in claim 1 is characterized in that male blade (11) and connector holder (19) are fixed by screw (30,18).

7, electric kettle thermostat as claimed in claim 1 is characterized in that pogo stick (5) has stator spring (6).