Lower coupler of electric kettle

Abstract

The utility model belongs to the field of electric kettles, and particularly relates to a lower coupler of an electric kettle, which comprises a coupling lower seat and a circuit part arranged on the coupling lower seat, the circuit part comprises a plurality of conductive reeds, each conductive reed comprises a free terminal, a touch end of each free terminal is fixedly provided with a contact, and the contact is fixed on the coupling lower seat. The contact protrudes relative to the surface of the free terminal and is elastically arranged in the plugging groove. The circuit part comprises at least one pair of conductive reeds arranged in pairs. Free terminals in the pair of conductive reeds arranged in pairs are arranged at 180 + / -10 degrees relative to the direction of the center of the coupling lower seat, and the protruding directions of contacts are opposite. According to the utility model, part or all of the lower coupler is arranged to be the conductive reeds arranged in pairs, and the acting force of the pair of conductive reeds arranged in pairs on the upper coupler is opposite or close to the opposite acting direction, so that the eccentric degree when the upper coupler and the lower coupler are coupled is eliminated or reduced.

Description

Technical Field

[0001] The utility model belongs to the field of electric kettles, and particularly relates to a lower coupler of an electric kettle. Background Art

[0002] At present, the existing electric kettle structure or a tea tray equipped with an electric kettle adopts a coupler structure. For example, the patent CN202122030718.3 previously disclosed by the applicant discloses an electric kettle coupler, which includes an upper coupler and a lower coupler. The upper coupler has an upper base, a circuit part, and an overheat protection part. The lower coupler is also provided with a lower base and a circuit part. The upper base is provided with a plurality of annular grooves, and the corresponding lower base is provided with convex rings inserted into the annular grooves of the upper base. Upper conductive parts are arranged on both sides of the annular grooves of the upper base, and lower conductive parts are arranged on both sides of the convex rings of the corresponding lower base. When the upper coupler is coupled with the lower coupler, the upper conductive parts are electrically connected to the lower conductive parts. Specifically, the upper conductive parts of the upper coupler are conductive rings, and a plurality of conductive rings are concentrically distributed. The lower conductive parts of the lower coupler are conductive spring pieces. When the upper coupler is coupled with the lower coupler, the conductive rings and the conductive spring pieces are elastically abutted to form electrical conduction. The above structure of the existing technology still has the following problems: In the circuit part of the coupler, the conductive spring pieces abutting against the conductive rings will form an elastic thrust on the conductive rings. Currently, the distribution of the conductive spring pieces in the lower coupler usually does not consider the elastic thrust direction of the conductive rings. Therefore, when the upper coupler is coupled with the lower coupler, under the thrust of the conductive spring pieces, there will be an imperceptible eccentricity when the upper coupler is coupled with the lower coupler, and this eccentricity will affect the conductive effect. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and to provide a lower coupler of an electric kettle.

[0004] The technical effects achieved by the utility model are as follows: A lower coupler of an electric kettle includes a coupling lower seat and a circuit part arranged on the coupling lower seat. The coupling lower seat is provided with a plurality of concentric insulating spacer rings, and the insulating spacer rings are spaced apart to form insertion slots. The circuit part includes a plurality of conductive spring pieces. The conductive spring pieces include free terminals, and a contact is fixed to the touching end of the free terminals. The contact protrudes from the surface of the free terminals and is elastically arranged in the insertion slot. The circuit part includes at least a pair of paired conductive spring pieces. In a pair of paired conductive spring pieces, the free terminals are arranged at an angle of 180±10° with respect to the center of the coupling lower seat, and the protruding directions of the contacts are opposite.

[0005] The inner wall and / or outer wall of the insulating spacer ring is provided with a mounting groove with an open bottom, and the free terminal extends into the mounting groove from the opening at the bottom of the mounting groove.

[0006] The free terminals of a pair of electrically conductive spring pieces arranged in pairs are respectively arranged in the mounting grooves located on the inner wall or the outer wall of two insulating spacer rings.

[0007] The circuit part includes two pairs of electrically conductive spring pieces arranged in pairs. The free terminals of one pair of electrically conductive spring pieces arranged in pairs are respectively arranged in the mounting grooves located on the inner wall of two insulating spacer rings, and the free terminals of the other pair of electrically conductive spring pieces arranged in pairs are respectively arranged in the mounting grooves located on the outer wall of two insulating spacer rings.

[0008] Mounting grooves are provided on both the inner wall and the outer wall of the insulating spacer ring, and the mounting grooves provided on the inner wall and the outer wall are arranged in different orientations relative to the center of the coupling lower seat. Two pairs of electrically conductive spring pieces arranged in pairs are respectively installed in the mounting grooves on the inner wall and the outer wall of two insulating spacer rings.

[0009] The contact is a rivet-type contact, and the contact is riveted and fixed to the free terminal.

[0010] A limiting piece is formed by bending the edge of the touching end of the free terminal. A limiting groove is provided at the upper end of the mounting groove, and the limiting piece and the limiting groove cooperate to form a limit on the swinging angle of the free terminal.

[0011] The electrically conductive spring piece includes a fixed base and a wiring terminal. The fixed base is fixedly connected to the bottom of the coupling lower seat, and the wiring terminal extends below the coupling lower seat for wiring.

[0012] The fixed base and the wiring terminal are integrally bent and formed. A connecting piece is formed by bending one end of the free terminal away from the touching end, and the connecting piece is riveted and fixed to the fixed base.

[0013] Three concentric insulating spacer rings are arranged on the coupling lower seat in sequence from the inside to the outside, and a water inlet pipe is fixed inside the innermost insulating spacer ring.

[0014] The beneficial effects of the present utility model are as follows: By setting some or all of the components in the lower coupler as pairs of electrically conductive spring pieces, the acting forces of a pair of electrically conductive spring pieces arranged in pairs on the upper coupler are in an opposite or nearly opposite acting direction, eliminating or reducing the eccentricity degree when the upper coupler and the lower coupler are coupled. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.

[0016] Figure 1Top view of an embodiment of the present utility model;

[0017] Figure 2 Distribution diagram of two pairs of paired conductive spring pieces in an embodiment of the present utility model;

[0018] Figure 3 For Figure 1 Cross-sectional view in the A-A direction in

[0019] Figure 4 For Figure 1 Cross-sectional view in the B-B direction in

[0020] Figure 5 Structural schematic diagram of a coupling lower seat in an embodiment of the present utility model;

[0021] Figure 6 One-angle cross-sectional view of a coupling lower seat in an embodiment of the present utility model;

[0022] Figure 7 Another-angle cross-sectional view of a coupling lower seat in an embodiment of the present utility model;

[0023] Figure 8 Structural schematic diagram of a conductive spring piece in an embodiment of the present utility model;

[0024] In the figure, coupling lower seat - 1, insulating spacer ring - 2, mounting groove - 201, limiting groove - 202, conductive spring piece - 3, free terminal - 301, contact - 302, limiting piece - 303, fixed base - 304, wiring terminal - 305, connecting piece - 306, insertion slot - 4, water inlet pipe - 5. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different ones. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0027] The directional and positional terms mentioned in the present utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only with reference to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are for explaining and understanding the present utility model, rather than limiting the protection scope of the present utility model.

[0028] A lower coupler of an electric kettle, comprising a coupling base 1 and a circuit part arranged on the coupling base 1. Three concentric insulating spacer rings 2 are arranged on the coupling base 1 in sequence from the inside to the outside. The insulating spacer rings 2 are arranged at intervals to form three insertion slots 4, including the inner cavity of the innermost insulating spacer ring 2 and two annular chambers between adjacent insulating spacer rings 2. A water inlet pipe 5 is fixed inside the innermost insulating spacer ring 2. The circuit part includes a plurality of conductive reeds 3. The conductive reed 3 includes a free terminal 301, and a contact 302 is fixed at the touch end of the free terminal 301. The contact 302 protrudes from the surface of the free terminal 301 and is elastically arranged in the insertion slot 4. The circuit part includes at least a pair of paired conductive reeds 3. In a pair of paired conductive reeds 3, the free terminals 301 are arranged at an azimuth of 180±10° relative to the center of the coupling base 1, and the protruding directions of the contacts 302 are opposite, so that the paired conductive reeds 3 form a balanced or nearly balanced acting force on the upper coupler after coupling.

[0029] An installation groove 201 with an open bottom is provided on the inner wall and / or outer wall of the insulating spacer ring 2. The free terminal 301 extends into the installation groove 201 from the opening at the bottom of the installation groove 201. The free terminals 301 of a pair of paired conductive reeds 3 are respectively arranged in the installation grooves 201 on the inner walls or outer walls of two insulating spacer rings 2 that are located at the same position.

[0030] As Figure 2 shown, in this embodiment, as Figure 2 shown, the circuit part includes two pairs of paired conductive reeds 3. The free terminals 301 of one pair of paired conductive reeds 3 are respectively arranged in the installation grooves 201 on the inner walls of two insulating spacer rings 2 that are located at the same position, and the free terminals 301 of the other pair of paired conductive reeds 3 are respectively arranged in the installation grooves 201 on the outer walls of two insulating spacer rings 2 that are located at the same position. Overall, a relatively balanced distribution of acting forces is formed. There are also two other conductive reeds 3, and the two other conductive reeds 3 can be arranged in the paired structure as described above, or arranged separately, which has little impact on the overall eccentric correction effect.

[0031] As Figure 6 、 Figure 7 shown, the inner wall and outer wall of the insulating spacer ring 2 are both provided with installation grooves 201, and the installation grooves 201 arranged on the inner wall and outer wall are at different azimuths relative to the center of the coupling base 1. As Figure 3 、 Figure 4 shown, two pairs of paired conductive reeds 3 are respectively installed in the installation grooves 201 on the inner wall and outer wall of two insulating spacer rings 2. That is, four conductive reeds 3 are installed through two insulating spacer rings 2, and are specifically installed on the two inner insulating spacer rings 2.

[0032] The contact 302 is a rivet-type contact, and the contact 302 is riveted and fixed to the free terminal 301.

[0033] As Figure 8 shown, a limiting piece 303 is formed by bending the edge of the touching end of the free terminal 301, a limiting groove 202 is provided at the upper end of the installation groove 201, and the limiting piece 303 and the limiting groove 202 cooperate to form a limit on the swinging angle of the free terminal 301.

[0034] The conductive reed 3 includes a fixed base 304 and a wiring terminal 305. The fixed base 304 is fixedly connected to the bottom of the coupling lower seat 1, and the wiring terminal 305 extends below the coupling lower seat 1 for wiring.

[0035] The fixed base 304 and the wiring terminal 305 are integrally bent and formed. A connecting piece 306 is bent and formed at one end of the free terminal 301 away from the touching end, and the connecting piece 306 is riveted and fixed to the fixed base 304.

[0036] The above-disclosed are only the preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A lower coupler of an electric kettle, comprising a coupling lower seat (1) and a circuit part arranged on the coupling lower seat (1), the coupling lower seat (1) being provided with a plurality of concentric insulating spacer rings (2) and the insulating spacer rings (2) being arranged at intervals to form a plurality of plug-in slots (4), the circuit part comprising a plurality of conductive springs (3), the conductive springs (3) comprising a free terminal (301), a contact point (302) being fixed at a contact end of the free terminal (301), the contact point (302) being arranged to be raised relative to the surface of the free terminal (301) and elastically arranged in the plug-in slot (4); characterized in that: The circuit part comprises at least one pair of conductive springs (3) arranged in pairs, wherein the free terminals (301) of the pair of conductive springs (3) are arranged at an angle of 180±10° relative to the center of the coupling lower seat (1) and the protrusions of the contacts (302) are arranged in opposite directions.

2. The lower coupler of the electric kettle according to claim 1, characterized in that: The inner wall and / or outer wall of the insulating spacer ring (2) is provided with a mounting groove (201) with a bottom opening, and the free terminal (301) extends into the mounting groove (201) from the opening at the bottom of the mounting groove (201).

3. The lower coupler of the electric kettle according to claim 2, characterized in that: The free terminals (301) of a pair of conductive spring sheets (3) arranged in pairs are respectively arranged in mounting grooves (201) located on the same inner wall or the same outer wall of two insulating spacer rings (2).

4. The lower coupler of the electric kettle according to claim 3, characterized in that: The circuit part comprises two pairs of conductive springs (3) arranged in pairs, wherein the free terminals (301) of one pair of conductive springs (3) are respectively arranged in mounting grooves (201) located on the inner wall of two insulating spacer rings (2), and the free terminals (301) of the other pair of conductive springs (3) are respectively arranged in mounting grooves (201) located on the outer wall of two insulating spacer rings (2).

5. The lower coupler of the electric kettle according to claim 4, characterized in that: The inner wall and the outer wall of the insulating spacer ring (2) are both provided with mounting grooves (201), and the mounting grooves (201) provided on the inner wall and the outer wall are in different orientations relative to the center of the coupling lower seat (1), and two pairs of conductive spring sheets (3) are respectively installed in the mounting grooves (201) located on the inner wall and the outer wall of the two insulating spacer rings (2).

6. The lower coupler of the electric kettle according to any one of claims 1 to 5, characterized in that: The contact (302) is a rivet-type contact, and the contact (302) is fixed to the free terminal (301) by riveting.

7. The lower coupler of the electric kettle according to any one of claims 2 to 5, characterized in that: The edge of the contact end of the free terminal (301) is bent to form a limiting piece (303), and a limiting groove (202) is provided at the upper end of the installation groove (201). The limiting piece (303) cooperates with the limiting groove (202) to limit the swing angle of the free terminal (301).

8. The lower coupler of the electric kettle according to any one of claims 1 to 5, characterized in that: The conductive spring sheet (3) comprises a fixed base (304) and a wiring terminal (305); the fixed base (304) is fixedly connected to the bottom of the coupling lower base (1); and the wiring terminal (305) extends to the bottom of the coupling lower base (1) for wiring.

9. The lower coupler of the electric kettle according to claim 8, characterized in that: The fixed base (304) and the connecting terminal (305) are integrally bent and formed, and a connecting piece (306) is formed by bending at one end of the free terminal (301) away from the touch end, and the connecting piece (306) is fixed to the fixed base (304) by riveting.

10. The lower coupler of the electric kettle according to any one of claims 1 to 5, characterized in that: The coupling lower seat (1) is provided with three concentric insulating spacer rings (2) distributed in sequence from the inside to the outside, and a water inlet pipe (5) is fixed inside the innermost insulating spacer ring (2).

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