CN210871069U - Combined temperature control switch applied to electric kettle - Google Patents

Abstract

The utility model belongs to the technical field of temperature detect switch, especially, be a be applied to combination formula temperature detect switch of electric kettle, including support, aluminum shell cover, deflector, push rod, movable contact spring, butterfly bimetallic strip, static contact, first logical heart rivet, second logical heart rivet, first binding post, conductive support, electromagnetic lock, magnetic steel piece, second binding post and electromagnetic drive circuit, wherein, the top in the support is installed to the aluminum shell cover, the deflector is installed in the inside of support, the middle part of deflector is vertically run through to the push rod. The utility model discloses a combination formula temperature detect switch structure, under traditional automatic re-setting snap type temperature controller structure promptly, through electromagnetic lock, magnetism steel bloom and electromagnetic drive circuit's the cooperation of addding, when providing overheat protection for the electric kettle, can independently select whether to keep warm, adopt the push button switch action, can realize cutting off the power supply fast, greatly improved the use convenience of electric kettle, and application scope is wide, and the practicality is strong.

Description

Combined temperature control switch applied to electric kettle

Technical Field

The utility model relates to a temperature detect switch technical field specifically is a be applied to combination formula temperature detect switch of electric kettle.

Background

According to the temperature change of the working environment, the switch is physically deformed, so that a certain special effect is generated, and a series of automatic control elements which are used for conducting or disconnecting actions are generated, wherein the automatic control elements are called temperature control switches, temperature protectors or temperature controllers, and temperature controllers for short. Or the temperature protector transmits the temperature to the temperature controller, and the temperature controller sends out a switching command, so that the operation of the equipment is controlled to achieve the ideal temperature and energy-saving effect. At present, a kick type temperature controller (bimetallic strip temperature controller) is widely applied to the fields of industrial appliances, motors and household appliances, and the household appliances comprise household appliances such as a microwave oven, an electromagnetic oven, a dish washer, an electronic disinfection cabinet, an electric hot water bottle, a water dispenser, a soybean milk machine, a cooling and heating air conditioning fan, a refrigerator, a food processor and the like.

The operating principle of the automatic reset type snap-action temperature controller is that a bimetallic strip is made into a disc-shaped element, displacement energy accumulation is generated by heating, once the reverse snap-action of the degree of resistance is overcome, a push rod is pushed to enable a contact to be quickly switched on and off, and a circuit is automatically disconnected; after the temperature is reduced, the bimetallic strip jumps and restores to the original state, so that the contact is closed, the circuit is automatically switched on, and the aim of controlling the temperature is fulfilled. When the automatic reset kick type temperature controller is used for overheat protection of various electric heating appliances, the automatic reset kick type temperature controller is usually connected in series with a disposable fuse (also called an overtemperature protector) for use, and the kick type temperature controller is used for primary protection. When the electric heating element is over-heated or dry-heated, the kick type temperature controller acts rapidly to automatically turn off the circuit, and the circuit is automatically turned on after the temperature is reduced. The fuse is used as a secondary protection automatic disconnection circuit when the electric heating element is over-temperature due to the failure or invalidation of the kick type temperature controller, thereby effectively preventing the electric heating element from being burnt out and the fire accident caused by the burning out of the electric heating element. However, when the traditional automatic reset type snap-action temperature controller is applied to an electric kettle, a user needs to manually pull out a plug and disconnect a power supply under the condition that the electric kettle is powered on and does not need to keep the temperature, so that the traditional automatic reset type snap-action temperature controller is complex to operate, cannot realize quick power-off operation, and has the defect of insufficient functionality.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be applied to electric kettle's combination formula temperature detect switch, solved traditional automatic reset type kick temperature controller when being applied to electric kettle, at the electric kettle circular telegram, the user need not under the heat retaining condition of electric kettle, needs the manual plug of choosing, and the disconnect power supply, complex operation can not realize the fast power-off operation, has the problem of the defect of functional not enough.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a combined temperature control switch applied to an electric kettle comprises a support, an aluminum shell cover, a guide plate, a push rod, a movable contact piece, a butterfly-shaped bimetallic strip, a static contact piece, a contact, a first through rivet, a second through rivet, a first connecting terminal, a conductive support, an electromagnetic lock, a magnetic steel block, a second connecting terminal and an electromagnetic drive circuit, wherein the aluminum shell cover is installed at the top end of the support, the guide plate is installed inside the support, the push rod longitudinally penetrates through the middle part of the guide plate, the push rod is in sliding fit with the guide plate, the movable contact piece is fixedly installed at the bottom of an inner cavity of the support, the top of the movable contact piece is in contact with the bottom end of the push rod, the butterfly-shaped bimetallic strip is arranged at the top of the guide plate, one end of the push rod, far away from the movable contact piece, is in contact with the bottom of the butterfly-shaped bimetallic strip, the static, the movable contact piece and the static contact piece are contacted through contacts, the movable contact piece and the static contact piece are respectively connected with two first connecting terminals through a first through rivet and a second through rivet, the electromagnetic lock is fixedly arranged at the bottom of an inner cavity of the support through a conductive support, the magnetic steel block is arranged at the bottom of the movable contact piece corresponding to the contacts, the magnetic steel block corresponds to the electromagnetic lock up and down, and the second connecting terminal is connected with the conductive support;

the electromagnetic driving circuit is composed of an electromagnetic lock, a button switch and a relay, wherein the button switch, a normally open hoe KM of the relay and a magnetic lock coil of the electromagnetic lock are connected in series.

As an optimized technical scheme of the utility model, be equipped with the installing support on the lateral wall of support.

As an optimized technical scheme of the utility model, the top of deflector is equipped with the depressed groove with butterfly bimetallic strip looks adaptation.

As an optimized technical scheme of the utility model, it has the LED pilot lamp to establish ties between the normally open hoe KM of the magnetic lock coil of electromagnetic lock and relay.

(III) advantageous effects

Compared with the prior art, the utility model provides a be applied to combination formula temperature detect switch of electric kettle possesses following beneficial effect:

this be applied to combination formula temperature detect switch of electric kettle adopts combination formula temperature detect switch structure, under traditional automatic re-setting kick formula temperature controller structure promptly, through electromagnetic lock, magnetism steel bloom and electromagnetic drive circuit add the cooperation, when providing overheat protection for the electric kettle, can independently select whether to keep warm, adopts the push button switch action, can realize the fast power off, has greatly improved the use convenience of electric kettle, and application scope is wide, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a circuit diagram of the middle electromagnetic driving circuit of the present invention.

In the figure: 1. a support; 2. an aluminum shell cover; 3. a guide plate; 4. a push rod; 5. a movable contact spring; 6. a butterfly-shaped bimetallic strip; 7. a static contact piece; 8. a contact; 9. a first through rivet; 10. a second hollow rivet; 11. a first connection terminal; 12. a conductive support; 13. an electromagnetic lock; 14. a magnetic steel block; 15. a second connection terminal; 16. and (7) mounting a bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-2, the present invention provides the following technical solutions: a combined temperature control switch applied to an electric kettle comprises a support 1, an aluminum shell cover 2, a guide plate 3, a push rod 4, a movable contact piece 5, a butterfly-shaped bimetallic strip 6, a static contact piece 7, a contact 8, a first hollow rivet 9, a second hollow rivet 10, a first connecting terminal 11, a conductive support 12, an electromagnetic lock 13, a magnetic steel block 14, a second connecting terminal 15 and an electromagnetic drive circuit, wherein the aluminum shell cover 2 is arranged at the top end of the support 1, the guide plate 3 is arranged inside the support 1, the push rod 4 longitudinally penetrates through the middle part of the guide plate 3, the push rod 4 is in sliding fit with the guide plate 3, the movable contact piece 5 is fixedly arranged at the bottom of an inner cavity of the support 1, the top of the movable contact piece 5 is contacted with the bottom end of the push rod 4, the butterfly-shaped bimetallic strip 6 is arranged at the top of the guide plate 3, one end of the push rod 4 far away from the movable contact piece 5 is contacted with, the static contact piece 7 is positioned above the movable contact piece 5, the movable contact piece 5 is contacted with the static contact piece 7 through a contact 8, the movable contact piece 5 and the static contact piece 7 are respectively connected with two first connecting terminals 11 through a first through rivet 9 and a second through rivet 10, the electromagnetic lock 13 is fixedly arranged at the bottom of the inner cavity of the support 1 through a conductive support 12, the magnetic steel block 14 is arranged on the movable contact piece 5 and corresponds to the bottom of the contact 8, the magnetic steel block 14 corresponds to the electromagnetic lock 13 up and down, and the second connecting terminal 15 is connected with the conductive support 12;

the electromagnetic driving circuit consists of an electromagnetic lock 13, a button switch and a relay, wherein the button switch, a normally open hoe KM of the relay and a magnetic lock coil of the electromagnetic lock 13 are connected in series.

In this embodiment, the electromagnetic driving circuit can directly control the electromagnetic lock 13 by adopting 12V output, when in practical application, the button switch is normally in an off state, when the water in the electric kettle is boiled, the temperature control switch is turned off, and a user does not need to keep warm for the boiled water, and only needs to press the button switch to close the button switch, so that the electromagnetic lock 13 is powered on, the magnetic steel block 14 at the bottom of the movable contact 5 and the electromagnetic lock 13 are continuously kept in an attraction state, after cooling, the butterfly-shaped bimetallic strip 6 jumps to recover the original state, and at this time, because the magnetic steel block 14 and the electromagnetic lock 13 are continuously kept in the attraction state, the two contacts 8 are forced to be out of contact, the electric heating element is not conductive, so that the electric kettle and the internal hot water are in a continuous cooling state, and the plug does not need to be pulled out, and the power supply is turned off.

Specifically, the side wall of the support 1 is provided with a mounting bracket 16.

In this embodiment, the mounting bracket 16 is provided with a mounting hole, and the mounting bracket 16 can be fastened by a screw, so that the mounting is convenient.

Specifically, the top of the guide plate 3 is provided with a concave groove matched with the butterfly bimetallic strip 6.

In this embodiment, the arrangement of the concave groove can provide a kick space for the butterfly-shaped bimetal 6.

Specifically, an LED indicator lamp is connected in series between a magnetic lock coil of the electromagnetic lock 13 and a normally open hoe KM of the relay.

In this embodiment, the setting of LED pilot lamp can carry out visual instruction to the user, and the LED pilot lamp is bright, and then electric heating element is not the electric installation state, and the LED pilot lamp is dark, then temperature detect switch adorns the state for normal use.

The utility model discloses a theory of operation and use flow: when the butterfly-shaped bimetallic strip works, the butterfly-shaped bimetallic strip 6 is heated to generate displacement energy accumulation, and after the butterfly-shaped bimetallic strip 6 overcomes the reverse kick of the resistance, the push rod 4 is pushed to quickly break the contact 8, so that the circuit is automatically disconnected; after cooling, the butterfly bimetallic strip 6 jumps suddenly and returns to the original state, so that the contact is closed, and the circuit is automatically switched on, thereby achieving the purpose of controlling the temperature; when a user does not need to keep warm of boiled water, the user only needs to press the button switch to close the button switch, so that the electromagnetic lock 13 is powered on, the magnetic steel block 14 at the bottom of the movable contact piece 5 and the electromagnetic lock 13 are continuously kept in a mutually attracted state, after cooling, the butterfly-shaped bimetallic strip 6 jumps suddenly and returns to the original state, and at the moment, because the magnetic steel block 14 and the electromagnetic lock 13 are continuously kept in the mutually attracted state, the two contacts 8 are forced to be not contacted, the electric heating element is not conductive, so that the electric heating kettle and the internal hot water are in a continuously cooled state, a plug is not required to be pulled out, the power supply is disconnected, and the rapid power-off operation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a be applied to combination formula temperature detect switch of electric kettle which characterized in that: the device comprises a support (1), an aluminum shell cover (2), a guide plate (3), a push rod (4), a movable contact piece (5), a butterfly bimetallic strip (6), a static contact piece (7), a contact (8), a first through rivet (9), a second through rivet (10), a first wiring terminal (11), a conductive support (12), an electromagnetic lock (13), a magnetic steel block (14), a second wiring terminal (15) and an electromagnetic drive circuit, wherein the aluminum shell cover (2) is installed at the top end of the support (1), the guide plate (3) is installed inside the support (1), the push rod (4) longitudinally penetrates through the middle of the guide plate (3), the push rod (4) is in sliding fit with the guide plate (3), the movable contact piece (5) is fixedly installed at the bottom of an inner cavity of the support (1), the top of the movable contact piece (5) is in contact with the bottom end of the push rod (4), the butterfly-shaped bimetallic strip (6) is arranged at the top of the guide plate (3), one end, far away from the movable contact piece (5), of the push rod (4) is in contact with the bottom of the butterfly-shaped bimetallic strip (6), the static contact piece (7) is fixedly arranged on the inner wall of the support (1), the static contact piece (7) is positioned above the movable contact piece (5), the movable contact piece (5) is in contact with the static contact piece (7) through a contact (8), the movable contact piece (5) and the static contact piece (7) are respectively connected with two first wiring terminals (11) through a first through rivet (9) and a second through rivet (10), the electromagnetic lock (13) is fixedly arranged at the bottom of the inner cavity of the support (1) through a conductive support (12), the magnetic steel block (14) is arranged on the movable contact piece (5) and corresponds to the bottom of the contact (8), and the magnetic steel block (14) corresponds to the electromagnetic lock (13) up and down, the second connecting terminal (15) is connected with the conductive bracket (12);

the electromagnetic driving circuit is composed of an electromagnetic lock (13), a button switch and a relay, wherein the button switch, a normally open hoe KM of the relay and a magnetic lock coil of the electromagnetic lock (13) are connected in series.

2. The combined temperature control switch applied to the electric kettle according to claim 1, wherein: and a mounting bracket (16) is arranged on the side wall of the support (1).

3. The combined temperature control switch applied to the electric kettle according to claim 1, wherein: the top of the guide plate (3) is provided with a concave groove matched with the butterfly-shaped bimetallic strip (6).

4. The combined temperature control switch applied to the electric kettle according to claim 1, wherein: an LED indicator lamp is connected in series between a magnetic lock coil of the electromagnetic lock (13) and the normally open hoe KM of the relay.

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