CN111248734A

CN111248734A - Electric heating kettle

Info

Publication number: CN111248734A
Application number: CN201811449199.0A
Authority: CN
Inventors: 朱泽春; 何莎婕; 徐敬博
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-09
Anticipated expiration: 2038-11-30
Also published as: CN111248734B

Abstract

The invention discloses an electric kettle, which comprises a kettle body and a power supply base, wherein the kettle body is rotationally matched on the power supply base, the rotating stroke of the kettle body relative to the power supply base comprises a conducting stroke and an insulating stroke, and the kettle body is electrically connected with the power supply base in the conducting stroke; when in the insulation stroke, the kettle body is not communicated with the power supply base. By controlling the rotation angle of the kettle body relative to the power base, whether the kettle body is communicated with the power base or not is avoided, and the dry burning caused by accident is avoided.

Description

Electric heating kettle

Technical Field

The invention relates to the field of domestic electric appliances, in particular to an electric kettle.

Background

The existing electric kettle comprises a kettle body and a power supply seat, wherein the power supply seat provides electric energy required by heating and controlling for the kettle body, and a control switch is arranged on the side wall of the kettle body to control whether the kettle body is communicated with the power supply seat or not. After the electric kettle is normally used, a user habitually places the kettle body on the power supply seat without disconnecting the power supply seat, if the control switch is pressed carelessly, the kettle body is heated continuously, water can be dried, dry burning is caused, and great potential safety hazards exist.

In addition, in order to facilitate the automatic bouncing of the control switch when the water is boiled, a steam pipeline and a bimetallic strip are usually additionally arranged on the kettle body, so that the cost is higher.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an electric kettle, which realizes whether a kettle body is communicated with a power supply base or not by rotating the kettle body and the power supply base relatively, and avoids dry burning caused by accident.

The technical purpose of the invention is realized by the following technical scheme: an electric kettle comprises a kettle body and a power supply base, wherein the kettle body is rotationally matched on the power supply base, the rotating stroke of the kettle body relative to the power supply base comprises a conducting stroke and an insulating stroke, and the kettle body is electrically connected with the power supply base in the conducting stroke; when in the insulation stroke, the kettle body is not communicated with the power supply base.

Preferably, when the kettle body is fitted with the power base, the angle at which the kettle body can rotate relative to the power base is less than 360 degrees.

Preferably, the non-rotatable stroke of the kettle body relative to the power supply base is a forbidden stroke, and the forbidden stroke is a continuous stroke.

Preferably, the non-rotatable stroke of the kettle body relative to the power supply base is a forbidden stroke, and the forbidden stroke is a discontinuous stroke.

Preferably, the forbidden stroke has two sections, and the total rotatable stroke of the kettle body and the power supply base is divided into a first section and a second section by the two sections of forbidden strokes.

Preferably, the first section and the second section both have a conductive stroke and an insulating stroke, the length of the conductive stroke in the first section is greater than the length of the insulating stroke, and the length of the insulating stroke in the second section is greater than the length of the conductive stroke.

Preferably, the kettle body is provided with a first limiting part, the power base is provided with a second limiting part, and the first limiting part is matched with the second limiting part to limit the kettle body to rotate relative to the power base.

Preferably, when the kettle body is matched with the power supply base, the kettle body can rotate 360 degrees relative to the power supply base.

Preferably, the kettle body is provided with a first guide part, the power base is provided with a second guide part, and the first guide part is matched with the second guide part to guide the kettle body to move towards a conductive stroke or an insulating stroke under the action of gravity.

Preferably, the kettle body comprises a kettle body and a handle fixed on the kettle body, a wire outlet for a power line to extend out is arranged on the power base, a vertical connecting line from the wire outlet to a central line of the kettle body is a first line, a vertical connecting line from the handle to the central line of the kettle body is a second line, and an included angle between the first line and the second line is smaller than 50 degrees.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. by controlling the rotation angle of the kettle body relative to the power supply base, whether the kettle body is communicated with the power supply base or not is avoided, and the situation that dry burning is caused unintentionally is avoided;

2. the forbidden stroke is set to prevent the handle of the kettle body from rotating to the side away from the user relative to the power base, so that the user can conveniently lift the kettle body through the handle next time;

3. when a user places the kettle body on the power base through the handle, the user does not need to adjust the position of the kettle body relative to the power base, and the use experience is better.

Drawings

FIG. 1 is an exploded schematic view of an embodiment;

FIG. 2 is a first structural schematic view of the first component;

FIG. 3 is a schematic structural view of a second member;

FIG. 4 is a first stroke of the kettle body relative to the base;

FIG. 5 is a second structural view of the first member;

FIG. 6 is a second stroke of the kettle body relative to the base;

FIG. 7 is a third line of drawings of the kettle body relative to the base;

FIG. 8 is a third structural view of the first member;

FIG. 9 is a first stroke view of the first member relative to the second member;

FIG. 10 is a second stroke view of the first member relative to the second member;

FIG. 11 is a third flowchart of the first component relative to the second component;

FIG. 12 is a schematic view of an insulating sheet;

FIG. 13 is a fourth structural view of the first member;

FIG. 14 is a schematic view of an electrical connector;

fig. 15 is a fifth structural view of the first member.

Reference numerals: 1. a kettle body; 11. a first member; 12. a kettle body; 13. a handle; 2. a power supply base; 21. a second component; 3. an electrical connection; 31. a conductive region; 311. conducting rings; 32. an insulating region; 321. a notch; 322. an insulating sheet; 33. a connecting ring; 4. a contact; 5. conducting travel; 6. an insulation stroke; 7. forbidding a stroke; 8. a first limiting part; 81. a protrusion; 9. a second limiting part; 10. a first guide portion; 101. a bevel; 14. a second guide portion; 15. a first line; 16. a second wire; 17. an outlet; 18. a first stage; 19. a second stage; 20. a groove; 22. a limiting groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1 and 4, the electric kettle comprises a kettle body 1 and a power base 2, wherein the kettle body 1 is rotatably matched on the power base 2, and the center lines of the kettle body 1 and the power base 2 are superposed. The rotating stroke of the kettle body 1 relative to the power base 2 comprises a conducting stroke 5 and an insulating stroke 6, the rotating stroke of the kettle body 1 relative to the power base 2 is a circle around a central line, and the conducting stroke 5 and the insulating stroke 6 are circular arcs around the central line. The kettle body 1 comprises a kettle body 12 and a handle 13 fixed on the outer side wall of the kettle body 12.

In the conducting stroke 5, the kettle body 1 is communicated with the power supply base 2; in the insulation stroke 6, the kettle body 1 is disconnected from the power base 2. By controlling the rotation angle of the kettle body 1 relative to the power base 2, whether the kettle body 1 is communicated with the power base 2 or not is avoided, and the dry burning caused by accident is avoided. The electric kettle structure does not need to be provided with a switch key and a steam channel, and is beneficial to reducing the production cost of the electric kettle.

Preferably, the bottom surface of the kettle body 1 is provided with a first part 11, the upper top surface of the power supply base 2 is provided with a second part 21 which is matched with the first part 11 in a rotating way, and the kettle body 1 and the power supply base 2 are matched with the second part 21 in a rotating way through the matching of the first part 11 and the second part 21. The kettle body 1 and the power base 2 are rotatably engaged by the engagement of the first part 11 with the second part 21.

Referring to fig. 2, 3 and 4, the first component 11 has an annular electrical connector 3 mounted thereon and the second component 21 has a contact 4 mounted thereon. The electrical connection element 3 comprises an insulating zone 32, a conductive zone 31 connected to the electric circuit of the kettle body 1, the contact 4 being in electrical contact with the conductive zone 31 during the conductive stroke 5; in the insulation stroke 6, the contact 4 is located in the insulation zone 32.

Preferably, the conductive area 31 is a conductive ring 311 with a notch 321 fixed on the kettle body 1; the insulating region 32 is a notch 321. The kettle body 1 is communicated with the power base 2 through the contact 4 electrically contacting with the conducting ring 311; the contact 4 falls into the notch 321, and the kettle body 1 is disconnected from the power base 2;

alternatively, the conductive area 31 is a conductive ring 311 with a notch 321 fixed on the kettle body 1; the insulation region 32 is an insulation sheet 322 disposed at the gap 321. The kettle body 1 is communicated with the power base 2 through the contact 4 electrically contacting with the conducting ring 311; the contact point 4 is contacted with the insulating sheet 322, and the kettle body 1 is disconnected with the power base 2.

In the conducting stroke 5 and the insulating stroke 6 of the first part 11 and the second part 21, the first part 11 and the second part 21 can be in a rotating fit state all the time, and the first part 11 and the second part 21 are communicated or disconnected by rotating to the conducting stroke 5 or the insulating stroke 6, so that the kettle body 1 and the power base 2 are communicated or disconnected.

Or the kettle body 1 is directly matched with the power base 2 in a rotating way, the electric connecting piece 3 is directly arranged on the bottom surface of the kettle body 1, and the contact 4 is directly arranged on the power base 2 without additionally arranging an electric connector, so that the production cost is reduced.

When the kettle body 1 is matched with the power base 2 in a rotating way, the rotating angle of the kettle body 1 relative to the power base 2 is less than 360 degrees. The non-rotatable stroke of the kettle body 1 relative to the power base 2 is a forbidden stroke 7, which corresponds to a non-rotatable angle. The circumference of the kettle body 1 surrounding the power base 2 consists of a forbidden stroke 7, an insulation stroke 6 and a conductive stroke 5. By setting the forbidden travel 7, the handle 13 of the kettle body 1 is prevented from rotating to the side away from the user relative to the power base 2, and the user can conveniently lift the kettle body 1 through the handle 13 next time.

The forbidden stroke 7 is a continuous stroke, and the conductive stroke 5 and the insulation stroke 6 correspond to the two ends of the forbidden stroke 7. Therefore, when the kettle body 1 is matched with the power base 2 in a rotating way, the kettle body 1 can run through all the insulation strokes 6 and the conduction strokes 5 relative to the power base 2, the rotating angle of the kettle body 1 relative to the power base 2 is fully utilized, and the rotating angle is prevented from being divided into a plurality of small sections by the non-rotating angle.

Referring to fig. 3, 5 and 6, the forbidden stroke 7 is a discontinuous stroke, the rotatable stroke of the kettle body 1 and the power supply base 2 is divided into a plurality of sections by the forbidden stroke 7, and at least one section of the stroke simultaneously has a conductive stroke 5 and an insulating stroke 6.

The stroke of the section is less than the total rotatable stroke, the switching between the conductive stroke 5 and the insulating stroke 6 can be realized by rotating the kettle body 1 relative to the power base 2 by a small angle, and then the two states of the connection and disconnection of the kettle body 1 and the power base 2 are quickly switched.

Preferably, the forbidden travel 7 is two, the two forbidden travels 7 dividing the total rotatable travel of the kettle body 1 and the power base 2 into a first section 18 and a second section 19. Different proportions of the conducting stroke 5 and the insulating stroke 6 can be set in the first section 18 and the second section 19, and the first section 18 or the second section 19 is selected as the actual rotatable stroke when the kettle body 1 is rotationally matched with the power base 2 according to requirements, so that diversified requirements are met.

The length of conductive track 5 in first segment 18 is greater than the length of insulating track 6 and the length of insulating track 6 in second segment 19 is greater than the length of conductive track 5. Due to the forbidden separation of the travel 7, the can 1 can only rotate in the first section 18 or the second section 19 when the can 1 is engaged in rotation with respect to the power base 2. In the first section 18, the insulation stroke 6 is long, and the kettle body 1 can be easily in the insulation stroke 6 when rotating relative to the power base 2, namely the kettle body 1 and the power base 2 are easily in a disconnected state; in the second section 19, the insulation stroke 6 is longer, and the kettle body 1 can be easily in the conduction stroke 5 when rotating relative to the power base 2, namely the kettle body 1 and the power base 2 are easily in a communicated state.

The kettle body 1 is provided with a first limiting part 8, the power base 2 is provided with a second limiting part 9, when the kettle body 1 rotates relative to the power base 2 to the forbidden stroke 7, the first limiting part 8 is matched with the second limiting part 9 to limit the rotation of the kettle body 1 relative to the power base 2, and further limit the kettle body 1 from entering the forbidden stroke 7.

The first limiting part 8 is directly fixed on the bottom surface of the kettle body 1, and the second limiting part 9 is directly fixed on the top surface of the power base 2;

alternatively, the first stopper portion 8 is attached to the first member 11, and the second stopper portion 9 is attached to the second member 21.

Preferably, the first position-limiting portion 8 is a protrusion 81 disposed on the electrical connector 3, and the protrusion 81 extends along the circumferential direction of the electrical connector 3; the second position-limiting portion 9 is the contact 4. During the rotation of the kettle body 1 relative to the power base 2, the contact 4 can abut against the protrusion 81 to limit the kettle body 1 to continue to rotate towards the direction relative to the power base 2, and further limit the kettle body 1 from entering the forbidden stroke 7.

The projection 81 on the electrical connector 3 corresponds to the forbidden stroke 7; the insulation region 32 corresponds to the insulation run 6; conductive region 31 corresponds to conductive trace 5. Whether the first part 11 is in the conductive stroke 5, the insulating stroke 6 or the inhibited stroke 7 relative to the second part 21 depends on the relative positional relationship of the contact 4 with respect to the conductive region 31, the insulating region 32 and the bump 81.

In addition, referring to fig. 3, 7 and 8, when the kettle body 1 is matched with the power base 2, the kettle body 1 can also rotate 360 degrees relative to the power base 2. When the kettle body 1 is installed in a matched manner with the power base 2, the kettle body 1 can be installed at any angle relative to the power base 2 and can be in rotating fit with the power base 2, the kettle body 1 does not need to be aligned with the power base 2 and then installed, and time and labor are saved.

The conducting stroke 5 and the insulating stroke 6 are both continuous strokes, and the kettle body 1 rotates for a circle from the conducting stroke 5 and only passes through the insulating stroke 6 once. Conversely, the kettle body 1 rotates for a circle from the insulation stroke 6 and only passes through the conducting stroke 5 once. Therefore, the distribution of the conductive strokes 5 and the insulating strokes 6 is simpler, and the process manufacturing is more convenient.

The kettle body 1 is provided with a first guide part 10, the power base 2 is provided with a second guide part 14, and the first guide part 10 is matched with the second guide part 14 to guide the kettle body 1 to move towards the conducting stroke 5 or the insulating stroke 6 under the action of gravity. The first guiding part 10 is directly fixed on the bottom surface of the kettle body 1, and the second guiding part 14 is directly fixed on the top surface of the power base 2;

alternatively, the first guide portion 10 is attached to the first member 11, and the second guide portion 14 is attached to the second member 21.

When the kettle body 1 is placed on the power base 2, the kettle body 1 automatically rotates the conducting stroke 5 or the insulating stroke 6 under the guiding action of the first guiding part 10 and the second guiding part 14 under the gravity action of the kettle body 1.

Preferably, the first guide portion 10 is an inclined plane 101 formed on both sides of the insulation sheet 322, the second guide portion 14 is the contact 4, and the insulation sheet 322 protrudes from the conductive ring 311 by a certain height. In the process of matching the contact 4 with the electric connector 3, a certain drop exists when the contact 4 slides from the insulating sheet 322 to the conductive ring 311, and the contact 4 is guided to match with the contact 4 through the inclined plane 101, so that the contact 4 is prevented from rigidly colliding with the conductive ring 311.

The power base 2 is provided with an outlet 17 for a power line to extend out, when the kettle body 1 is arranged on the base, the perpendicular connection of the outlet 17 to the central line of the kettle body 1 is a first line 15, the perpendicular connection of the handle 13 to the central line of the kettle body 1 is a second line 16, and when the kettle body 1 is in an insulation stroke 6 relative to the power base 2, the included angle between the first line 15 and the second line 16 is smaller than a certain degree.

When the electric kettle is normally used, the outlet 17 is generally positioned on the side of the power base 2, which faces away from the user. In the rotation stroke of the kettle body 1 relative to the power base 2, only when the handle 13 is close to one side of the outlet 17, the included angle between the first line 15 and the second line 16 is less than 50 degrees, and the kettle body 1 is in the insulation stroke 6 relative to the power base 2. At this time, the spout of the kettle body 12 is opposite to the user, and the kettle body 1 is disconnected from the power base 2, so as to prevent the user from being scalded by the boiling liquid during heating.

The user places the kettle body 1 when power base 2 through handle 13, and handle 13 generally is located and is close to user one side, and handle 13 deviates from outlet 17 one side promptly to in the next time mention the kettle body 1, at this moment, the relative power base 2 of the kettle body 1 is in electrically conductive stroke 5, the kettle body 1 and power base 2 intercommunication, the kettle body 1 begins the heating liquid, the user need not to readjust the relative power base 2's of the kettle body 1 position, use experience is better.

Example two:

referring to fig. 2, 3 and 9, an electrical connector for electrical connection of a household appliance comprises a first part 11, a second part 21 which is rotationally engaged with the second part 21.

The rotation stroke of the first component 11 relative to the second component 21 comprises a conductive stroke 5 and an insulation stroke 6, and the first component 11 is communicated with the second component 21 in the conductive stroke 5; in the insulation stroke 6, the first part 11 is disconnected from the second part 21.

In normal mating, the first member 11 is positioned above the second member 21. The second part 21 has two contacts 4 communicating with the power supply; the bottom surface of the first component 11 has a plurality of annular electrical connections 3, at least one of the electrical connections 3 comprising a conductive region 31 and an insulating region 32.

In the conductive path 5, one of the contacts 4 is in electrical contact with the conductive area 31, the other contact 4 is in communication with the other electrical connector 3, and the first component 11 is in communication with the second component 21; in the insulating stroke 6, one of the contacts 4 is located in the insulating zone 32 of the electrical connector 3, the other contact 4 is in communication with the other electrical connector 3, and the first component 11 is disconnected from the second component 21. In the conducting stroke 5 and the insulating stroke 6 of the first component 11 and the second component 21, the first component 11 and the second component 21 can be in a rotating fit state all the time, and the first component 11 is communicated or disconnected with the second component 21 by rotating to the conducting stroke 5 or the insulating stroke 6. Therefore, the first component 11 and the second component 21 can be connected or disconnected under the condition that the first component and the second component are in running fit, so that the use is convenient, and the time and the labor are saved.

When the first member 11 is rotationally engaged with the second member 21, the first member 11 is rotatable relative to the second member 21 through an angle of less than 360 degrees. The non-rotatable stroke of the first member 11 relative to the second member 21 is the inhibit stroke 7, corresponding to the non-rotatable angle. The first part 11 is surrounded by the second part 21 in one revolution and is composed of the inhibition path 7, the insulation path 6 and the conduction path 5.

The forbidden stroke 7 is a continuous stroke, and the conductive stroke 5 and the insulation stroke 6 correspond to the two ends of the forbidden stroke 7. Therefore, when the first part 11 is rotatably matched with the second part 21, the first part 11 can go through the whole insulation stroke 6 and the conductive stroke 5 relative to the second part 21, and the rotatable angle of the first part 11 relative to the second part 21 is fully utilized, so that the rotatable angle is prevented from being divided into a plurality of small sections by the non-rotatable angle.

Referring to fig. 3, 5 and 10, the forbidden travel 7 is a discontinuous travel, and the rotatable travel of the first member 11 and the second member 21 is divided into a plurality of sections by the forbidden travel 7, and at least one section has both the conductive travel 5 and the insulating travel 6.

The stroke of the section is smaller than the total rotatable stroke, and the first part 11 can rotate by a small angle relative to the second part 21 to realize the switching of the conductive stroke 5 and the insulating stroke 6, so that the two states of connection and disconnection of the first part 11 and the second part 21 are quickly switched.

Preferably, the inhibited stroke 7 is two steps, the two steps of inhibited stroke 7 dividing the total rotatable stroke of the first member 11 and the second member 21 into a first step 18 and a second step 19. Different proportions of the conducting stroke 5 and the insulating stroke 6 can be set in the first section 18 and the second section 19, and the first section 18 or the second section 19 is selected as an actual rotatable stroke when the first part 11 and the second part 21 are matched in a rotating mode according to requirements, so that diversified requirements are met.

The length of conductive track 5 in first segment 18 is greater than the length of insulating track 6 and the length of insulating track 6 in second segment 19 is greater than the length of conductive track 5. Due to the prohibited travel 7 separation, the first member 11 can only rotate in either the first segment 18 or the second segment 19 when the first member 11 is rotationally engaged with respect to the second member 21. In the first section 18, the insulation stroke 6 is long, and the first part 11 can be easily in the insulation stroke 6 by rotating relative to the second part 21, namely, the first part 11 and the second part 21 are easily in a disconnected state; in the second section 19, the insulation stroke 6 is long, and the first member 11 can be relatively easily set to the conduction stroke 5 by rotating relative to the second member 21, that is, the first member 11 and the second member 21 are relatively easily set to a communicating state.

The first part 11 is provided with a first limiting part 8, the second part 21 is provided with a second limiting part 9, when the first part 11 rotates relative to the second part 21 to the stroke inhibition 7, the first limiting part 8 is matched with the second limiting part 9 to limit the first part 11 to rotate relative to the second part 21, and further limit the first part 11 to enter the stroke inhibition 7.

The first limiting part 8 is a protrusion 81 arranged on the electrical connector 3, and the protrusion 81 extends along the circumferential direction of the electrical connector 3; the second position-limiting portion 9 is the contact 4. During rotation of the first member 11 relative to the second member 21, the contact 4 can abut against the projection 81 to restrict continued rotation of the first member 11 relative to the second member 21 in that direction and thereby restrict the first member 11 from entering the prohibited stroke 7.

Preferably, the conductive region 31 is a conductive ring 311 having a notch 321, the insulating region 32 is the notch 321, and the protrusion 81 is a plastic part.

In addition, referring to fig. 3, 8 and 11, when the first member 11 is mated with the second member 21, the first member 11 may also be rotated 360 degrees relative to the second member 21. When the first component 11 and the second component 21 are installed in a matched mode, the first component 11 can be installed at any angle relative to the second component 21 and can be in rotating fit with the second component 21, the first component 11 and the second component 21 do not need to be aligned and then installed, and time and labor are saved.

Both the conducting path 5 and the insulating path 6 are continuous paths, and the first part 11 rotates from the conducting path 5 for one turn only through the insulating path 6 once. Conversely, the first part 11 makes a rotation starting from the insulation path 6 only once through the conduction path 5. Therefore, the distribution of the conductive stroke 5 and the insulation stroke 6 is simpler, and the process modeling is more convenient.

Preferably, the conductive area 31 is a conductive ring 311 having a notch 321 fixed to the first member 11; the insulation region 32 is an insulation sheet 322 disposed at the gap 321. The first part 11 is in communication with the second part 21 by electrical contact with the conductive ring 311 through contact 4; the first member 11 is disconnected from the second member 21 by the contact 4 contacting the insulating sheet 322.

Example three:

referring to fig. 1, 3, 7 and 8, the electric kettle comprises a kettle body 1 and a power base 2, wherein the kettle body 1 is rotatably matched on the power base 2, and the center lines of the kettle body 1 and the power base 2 are superposed. The rotating stroke of the kettle body 1 relative to the power base 2 comprises a conducting stroke 5 and an insulating stroke 6, the rotating stroke of the kettle body 1 relative to the power base 2 is a circle around a central line, and the conducting stroke 5 and the insulating stroke 6 are circular arcs around the central line.

An electric connector 3 is arranged on the bottom surface of the kettle body 1, and a contact 4 communicated with a power supply is arranged on the power supply base 2. The electrical connection element 3 comprises an insulating zone 32, a conductive zone 31 connected to the electric circuit of the kettle body 1, the contact 4 being in electrical contact with the conductive zone 31 during the conductive stroke 5; in the insulation stroke 6, the contact 4 is located in the insulation zone 32.

In the conducting stroke 5, the contact 4 is electrically contacted with the conducting area 31, and the kettle body 1 is communicated with the power supply base 2; in the insulating stroke 6, the contact 4 is located in the insulating zone 32 and the kettle body 1 is disconnected from the power base 2. By controlling the rotation angle of the kettle body 1 relative to the power base 2, whether the kettle body 1 is communicated with the power base 2 or not is avoided, and the dry burning caused by accident is avoided. The electric kettle structure does not need to be provided with a switch key and a steam channel, and is beneficial to reducing the production cost of the electric kettle.

The bottom surface of the kettle body 1 is provided with a first part 11, the upper top surface of the power base 2 is provided with a second part 21 which is in running fit with the first part 11, and the kettle body 1 and the power base 2 are in running fit through the matching of the first part 11 and the second part 21. The electrical connector 3 is mounted on the first component 11 and the contact 4 is mounted on the second component 21. Whether the first part 11 is communicated with the second part 21 or not is equivalent to whether the kettle body 1 is communicated with the power base 2 or not.

The first component 11 has a plurality of electrical connectors 3 thereon, each electrical connector 3 being in electrical contact with at most one contact 4.

Preferably, the contact 4 is made of an elastic conductive metal, which can be adapted to different configurations of the electrical connector 3.

The contact 4 is only a zero line contact 4 or a live line contact 4;

alternatively, the contacts 4 include at least two of a neutral contact 4, a hot contact and a signal contact, each contact 4 having a different electrical connector 3. The signal line contact is used for supplying power with the signal detection circuit, and the electric connecting piece 3 corresponding to the signal line contact is connected with the signal circuit; the live wire contact is communicated with the live wire; the zero line contact is communicated with the power supply zero line.

The electrical connector 3 has four configurations, and in a first configuration, as shown in fig. 8, the conductive area 31 is a conductive ring 311 with a notch 321, the insulating area 32 is an insulating plate 322 fixing the notch 321, the conductive ring 311 is made of a metal material, and the insulating plate 322 is made of a plastic material.

Referring to fig. 8, 11 and 12, during the rotation of the first member 11 relative to the second member 21, when the contact 4 contacts the conductive ring 311, the first member 11 is in the conductive path 5 and is in communication with the second member 21; when the contact 4 is in contact with the insulating sheet 322, the first member 11 is disconnected from the second member 21 at the insulating stroke 6.

The insulation sheet 322 has a certain radian, which can fill the gap of the gap 321, and forms a complete annular member together with the conductive ring 311. The electric connector 3 is a complete annular part, and in the process of rotating the first component 11 relative to the second component 21, the contact 4 can rotate around the axis of the electric connector 3 and always keep in contact with the electric connector 3, and meanwhile, the phenomenon that the first component 11 and the second component 21 are blocked due to irregular shapes of the insulating sheets 322 can be avoided.

The side of the insulating sheet 322 facing away from the first part 11 is provided with a limiting groove 22 for inserting the contact 4. In the insulation stroke 6, the contact 4 is in sliding contact with the insulation sheet 322, and the contact 4 can slide into the limit groove 22 and abut against the inner groove wall of the limit groove 22 to limit the contact 4 from sliding relative to the insulation sheet 322, thereby limiting the rotation of the first member 11 and the second member 21. Only when a large driving force is applied, the contact 4 can be elastically deformed and released from the stopper groove 22.

Insulating piece 322 both sides have all been seted up recess 20, and recess 20 extends to the lower extreme of insulating piece 322 from the upper end of insulating piece 322, inserts recess 20 respectively in the conducting ring 311 both sides of breach 321 department to restriction insulating piece 322 horizontal displacement is favorable to guaranteeing contact 4 and insulating piece 322 contact when insulating stroke 6.

The insulation sheet 322 is slidably connected to the notch 321 through the groove 20 and the conductive ring 311, and the insulation sheet 322 can axially slide relative to the conductive ring 311. When insulating piece 322 weares and teares, the user can take insulating piece 322 out from breach 321, then slides new insulating piece 322 into breach 321, realizes the change of insulating piece 322 to avoid changing whole electric connection will, reduce the replacement cost.

Or, the groove 20 is filled with glue, the conductive ring 311 inserted into the groove 20 contacts with the glue and is bonded to the insulating sheet 322 through the glue, the conductive ring 311 and the insulating sheet 322 are fixed in relative position, and the structure is reliable.

In the second electrical connector 3 structure, referring to fig. 3, 11 and 13, the conductive region 31 is a conductive ring 311 having a notch 321, and the insulating region 32 is the notch 321. During the connection stroke, the contact 4 is electrically contacted to the conductive ring 311, and the first part 11 is connected to the second part 21; at the time of the insulation stroke 6, the contact 4 falls into the notch 321 of the conductive ring 311, and the first member 11 is disconnected from the second member 21.

In the third electrical connector 3 configuration, referring to fig. 3 and 14, the insulating region 32 is an insulating sheet 322 fixed to the connection ring 33, and the conductive region 31 is a portion of the connection ring 33 to which the insulating sheet 322 is not fixed. The insulation sheet 322 is fixed to the inner or outer sidewall of the connection ring 33. The insulation sheet 322 is fixed on the connection ring 33 by screws; alternatively, the insulating sheet 322 is integrally molded on the conductive ring 311.

The conducting ring 311 does not need to be provided with the notch 321 matched with the insulating sheet 322, and the insulating sheet 322 is directly fixed on the complete annular conducting ring 311, which is favorable for increasing the processing cost of the conducting ring 311.

Preferably, the insulating sheet 322 axially protrudes from the conductive ring 311 relative to the conductive ring 311, so as to ensure that the contact 4 preferentially contacts with the insulating sheet 322, which is beneficial to avoiding the contact between the contact 4 and the insulating sheet 322 during the insulation stroke 6.

In the fourth electrical connector 3 structure, referring to fig. 3 and 15, the electrical connector 3 is a connection ring 33, and the connection ring 33 is horizontally fixed to the bottom surface of the first component 11. The insulating region 32 is a portion of the connection ring 33 coated with an insulating varnish, and the conductive region 31 is a portion of the connection ring 33 coated with an insulating varnish. The conductive ring 311 is made of conductive metal, and the insulating region 32 cannot be conducted with the contact 4 due to the coating of the insulating varnish.

The electric connector 3 has a simple structure, only needs one connecting ring 33 to have the effects of the conductive area 31 and the insulating area 32, and has low processing difficulty and cost.

Example four:

referring to fig. 2, 3 and 11, an electrical connector for electrical connection of a household appliance comprises a first part 11, a second part 21 which is rotationally engaged with the second part 21.

In normal mating, the first member 11 is positioned above the second member 21. The second part 21 has a contact 4 communicating with the power supply, the contact 4 projecting from above the second part 21 and protruding outside the connecting rod; the bottom surface of the first component 11 has an electrical connection 3, the electrical connection 3 comprising a conductive area 31 and an insulating area 32.

In the conductive path 5, the contact 4 is in electrical contact with the conductive area 31, and the first part 11 is in communication with the second part 21; in the insulation stroke 6, the contact 4 is located in the insulation zone 32 and the first part 11 is disconnected from the second part 21. In the conducting stroke 5 and the insulating stroke 6 of the first component 11 and the second component 21, the first component 11 and the second component 21 can be in a rotating fit state all the time, and the first component 11 is communicated or disconnected with the second component 21 by rotating to the conducting stroke 5 or the insulating stroke 6. Therefore, the first component 11 and the second component 21 can be connected or disconnected under the condition that the first component and the second component are in running fit, so that the use is convenient, and the time and the labor are saved.

The electric connecting pieces 3 are multiple, and each electric connecting piece 3 corresponds to at most one contact 4 to be electrically contacted with the electric connecting piece.

The contact 4 is only a zero line contact 4 or a live line contact 4;

alternatively, the contacts 4 include at least two of a neutral contact 4, a hot contact 4 and a signal contact 4, each contact 4 having a different electrical connector 3. The signal line contact 4 is used for supplying power to the signal detection circuit, and the electric connector 3 corresponding to the signal line contact 4 is connected with the signal circuit; the live wire contact 4 is communicated with a live wire; the zero line contact 4 is communicated with a power supply zero line.

The electrical connector 3 has four configurations, and in a first configuration, as shown in the figure, the conductive area 31 is a conductive ring 311 with a notch 321, the insulating area 32 is an insulating plate 322 fixing the notch 321, the conductive ring 311 is made of a metal material, and the insulating plate 322 is made of a plastic material.

Referring to fig. 3, 8, 11 and 12, during the rotation of the first member 11 relative to the second member 21, the contact 4 is in contact with the conductive ring 311, at the conductive stroke 5, and the first member 11 is in communication with the second member 21; when the contact 4 is in contact with the insulating sheet 322, the first member 11 is disconnected from the second member 21 at the insulating stroke 6.

In the third electrical connector 3 configuration, referring to fig. 15, the insulating region 32 is an insulating sheet 322 fixed to the connection ring 33, and the conductive region 31 is a portion of the connection ring 33 to which the insulating sheet 322 is not fixed. The insulation sheet 322 is fixed to the inner or outer sidewall of the connection ring 33. The insulation sheet 322 is fixed on the connection ring 33 by screws; alternatively, the insulating sheet 322 is integrally molded on the conductive ring 311.

Preferably, the insulating ring 322 axially protrudes from the conductive ring 311 relative to the conductive ring 311, so as to ensure that the contact 4 preferentially contacts the insulating ring 322, which is beneficial to avoiding the contact between the contact 4 and the conductive ring 311 during the insulation stroke 6.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. An electric kettle comprises a kettle body and a power base, wherein the kettle body is rotationally matched on the power base, and the electric kettle is characterized in that: the rotating stroke of the kettle body relative to the power supply base comprises a conducting stroke and an insulating stroke, and the kettle body is electrically connected with the power supply base in the conducting stroke; when in the insulation stroke, the kettle body is not communicated with the power supply base.

2. The electric kettle as claimed in claim 1, wherein: when the kettle body is matched with the power supply base, the rotatable angle of the kettle body relative to the power supply base is less than 360 degrees.

3. The electric kettle as claimed in claim 2, wherein: the non-rotatable stroke of the kettle body relative to the power supply base is a forbidden stroke, and the forbidden stroke is a continuous stroke.

4. The electric kettle as claimed in claim 2, wherein: the non-rotatable stroke of the kettle body relative to the power supply base is forbidden stroke, and the forbidden stroke is discontinuous stroke.

5. The electric kettle as claimed in claim 4, wherein: the forbidden stroke has two sections, and the total rotatable stroke of the kettle body and the power supply base is divided into a first section and a second section by the two sections of forbidden strokes.

6. The electric kettle as claimed in claim 4, wherein: the first section and the second section are both provided with a conductive stroke and an insulating stroke, the length of the conductive stroke in the first section is greater than that of the insulating stroke, and the length of the insulating stroke in the second section is greater than that of the conductive stroke.

7. The electric kettle as claimed in claim 2, wherein: the kettle body is provided with a first limiting part, the power base is provided with a second limiting part, and the first limiting part is matched with the second limiting part to limit the kettle body to rotate relative to the power base.

8. The electric kettle as claimed in claim 1, wherein: when the kettle body is matched with the power supply base, the kettle body can rotate 360 degrees relative to the power supply base.

9. An electric kettle according to claim 1, 2 or 8 wherein: the kettle body is provided with a first guide part, the power base is provided with a second guide part, and the first guide part is matched with the second guide part to guide the kettle body to move towards a conductive stroke or an insulating stroke under the action of gravity.

10. An electric kettle according to claim 1, 2 or 8 wherein: the kettle body comprises a kettle body and a handle fixed on the kettle body, a wire outlet for a power line to extend out is arranged on the power supply base, a first line is vertically connected from the wire outlet to the central line of the kettle body, a second line is vertically connected from the handle to the central line of the kettle body, and when the kettle body is in an insulation stroke relative to the power supply base, an included angle between the first line and the second line is smaller than 50 degrees.