CN212342827U

CN212342827U - Power supply terminal, welding structure of power supply terminal and heating wire and kitchen appliance

Info

Publication number: CN212342827U
Application number: CN202021494646.7U
Authority: CN
Inventors: 张堂龙
Original assignee: Shenzhen Foda Electric Co ltd
Current assignee: Shenzhen Foda Electric Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-01-12
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a welded structure and kitchen appliance of power supply terminal, power supply terminal and heater. The power supply terminal comprises a plate-shaped main body, the main body is provided with a first end and a second end, the first end is connected with the heating wire, the second end is connected with a power line, the first end is provided with a clamping portion which can form an included angle with the first end, and a clamping opening used for placing the heating wire is formed between the clamping portion and the first end. The utility model discloses a set up clamping part on the power supply terminal, clamping part and first end form a clamp mouth, bump the back of welding, and clamping part and first end press from both sides tight back welded fastening with the heater, and the welding fastness between reinforcing heater and power supply terminal makes electrical contact performance better, and the electric conductivity is higher.

Description

Power supply terminal, welding structure of power supply terminal and heating wire and kitchen appliance

Technical Field

The utility model relates to a domestic appliance research field, especially a welded structure and kitchen appliance of power supply terminal, power supply terminal and heater.

Background

The heating plate is used as a main heating component of the electromagnetic heating type kitchen appliance. Kitchen appliances such as tea stoves, induction cookers, and the like.

The welding mode of the power terminal and the heating wire in the existing heating plate is direct butt welding of the power terminal and the heating wire, which is easy to cause unstable welding. The power supply terminal and the heating wire are easy to fall off in the using or transporting process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a welding structure and kitchen appliance of power supply terminal, power supply terminal and heater, the power supply terminal cliies the heater after welded fastening, improves the welding fastness between heater and power supply terminal.

According to the utility model discloses a first aspect embodiment provides power supply terminal, including being platelike main part, the main part has the first end that is used for being connected with the heater and the second end of being connected with the power cord, first end has the clamping part that can become the contained angle with first end, form the mouth that presss from both sides that is used for placing the heater between clamping part and the first end.

According to the utility model discloses power terminal of first aspect embodiment, the clamping part is connected with first end through the portion of bending.

According to the utility model discloses power terminal, first end has first reference surface, and the bottom of the portion of bending flushes with first reference surface.

According to the utility model discloses power terminal of first aspect embodiment, connect through connecting portion between clamping part and the portion of bending.

According to the utility model discloses power terminal of first aspect embodiment, the width of clamping part is greater than the width of connecting portion.

According to the power terminal of the embodiment of the first aspect of the present invention, the included angle between the clamping portion and the first end ranges from 20 ° to 30 °.

According to the utility model discloses a second aspect embodiment provides power supply terminal and heater's welded structure, including the heater with the power supply terminal, the heater is located between first end and the clamping part and through the butt-joint welding in the technology melting position solidify the fusion zone that forms and connect.

According to the utility model discloses the second aspect embodiment the welded structure of power supply terminal and heater, first end has the pin face, clamping part has the second reference surface, pin face and second reference surface flush.

According to a third aspect of the present invention, there is provided a kitchen appliance, including the welding structure of the aforementioned power terminal and the heater.

The utility model has the advantages that: the utility model discloses a set up clamping part on the power supply terminal, clamping part and first end form a clamp mouth, bump the back of welding, and clamping part and first end press from both sides tight back welded fastening with the heater, and the welding fastness between reinforcing heater and power supply terminal makes electrical contact performance better, and the electric conductivity is higher.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a front view of a power terminal in an embodiment of the invention;

fig. 2 is a top view of a power terminal in an embodiment of the invention;

fig. 3 is a first schematic structural diagram of a power terminal in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a power terminal in an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Welding structure of power supply terminal and heater, including the heater with the power supply terminal, wherein, refer to fig. 1 ~ 4, the power supply terminal is including being platelike main part 10, main part 10 has the first end 11 that is used for being connected with the heater and the second end 16 of being connected with the power cord, first end 11 has the clamping part 12 that can become the contained angle with first end 11, form the nip 14 that is used for placing the heater between clamping part 12 and the first end 11, the heater is located between first end 11 and the clamping part 12 and through melting zone that the melting position solidifies and form in the butt-joint technology and connect.

It can be understood that, in the butt-welding process, be located the heater between first end 11 and clamping part 12, and place heater and power terminal between the last electrode bar and the lower electrode bar of butt-welding machine, go up the electrode bar and contact with clamping part 12, lower electrode bar and first end 11 contact, go up the electrode bar and exert pressure to clamping part 12 and first end 11 with lower electrode bar, make clamping part 12 and first end 11 press from both sides the heater tightly, and circular telegram produces high temperature and make between heater and clamping part 12 and heater and the first end 11 between form the melting position, form the fusion zone after the melting position solidifies, power terminal and heater realize fixed connection through the fusion zone, strengthen the welding firmness between heater and the power terminal, make the electrical contact performance better, the electric conductivity is higher.

The cross section of the nip 14 may be U-shaped or V-shaped. The opening of the U-shaped or V-shaped nip 14 faces the second reference plane of the first end 11.

In some embodiments, the clamping portion 12 is connected to the first end 11 by a bend 13. In the production of the power supply terminal, the clamping portion 12 is formed on the first end 11 by a bending forming technique, and the bent portion 13 is used to connect the clamping portion 12 and the first end 11. The clamp 12 is flat, the thickness of the clamp 12 is substantially the same as the thickness of the first end 11, and the width W2 of the bent portion 13 is substantially the same as the width of the connecting portion, that is, a gap is provided between the bent portion 13 and the first end 11, so that the bent portion 13 can be bent easily. When welding, avoid the too big defect that leads to clamping part 12 and/or first end 11 to be welded and worn to drop of thickness difference of clamping part 12 and first end 11, improve welding quality, guarantee the joint strength and the conduction efficiency between heater and power supply terminal.

In some embodiments, the first end 11 has a first reference surface 110, and the bottom 130 of the bending part 13 is flush with the first reference surface 110. The first reference surface 110 is used for positioning and mounting with the ceramic base, and when the bottom 130 of the bending part 13 exceeds the first reference surface 110, the stability of the power terminal on the ceramic base is affected.

In some embodiments, the clamping portion 12 and the bent portion 13 are connected by a connecting portion 15, so that a gap exists between the lowermost end of the clamping portion 12 and the first end 11, and the first end 11 or the clamping portion 12 is prevented from being deformed due to interference between the clamping portion 12 and the first end 11 during bending.

In some embodiments, the width W1 of the clamping portion 12 is greater than the width W2 of the connecting portion 15. The width W2 of the bent portion 13 is substantially equal to the width of the connecting portion 15, that is, a gap is formed between the bent portion 13 and the first end 11, which facilitates bending of the bent portion 13. The width W1 of the clamping portion 12 is greater than the width W2 of the connecting portion 15, so that the clamping portion 12 and the first end 11 are prevented from interfering with each other during bending, and the first end 11 or the clamping portion 12 is prevented from being deformed.

In some embodiments, the included angle α between the clamping portion 12 and the first end 11 ranges from 20 ° to 30 °, so that the lower end surface of the upper electrode rod can be in press contact with the outer side surface of the clamping portion 12 and drive the clamping portion 12 to clamp the heater, and a high temperature is generated by energization to form a melting portion between the heater and the clamping portion 12 and between the heater and the first end 11, the melting portion forms a fusion region after solidification, the power terminal and the heater are fixedly connected through the fusion region, the welding firmness between the heater and the power terminal is enhanced, so that the electrical contact performance is better, and the electrical conductivity is higher. Preferably, as shown in fig. 2, when the included angle α is 25 °, the upper electrode bar can well drive the clamping portion 12 to descend and clamp the heating wire.

In some embodiments, the first end 11 has a pin face 111, and the clamping portion 12 has a second reference face 120, and the pin face and the second reference face 120 are flush, and have a neat and beautiful appearance.

The utility model discloses still provide kitchen appliance, including the welded structure of aforementioned power supply terminal and heater. The specific structure of the welding structure of the power terminal and the heating wire refers to the above embodiments, and since the kitchen appliance adopts all the schemes of all the above embodiments, at least all the beneficial effects brought by the technical schemes of the above embodiments are achieved, and no further description is given here.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. Power supply terminal, its characterized in that: including being platelike main part, the main part has the first end that is used for being connected with the heater and the second end of being connected with the power cord, first end has the clamping part that can become the contained angle with first end, form the mouth that presss from both sides that is used for placing the heater between clamping part and the first end.

2. The power terminal of claim 1, wherein: the clamping portion is connected with the first end through the bending portion.

3. The power terminal of claim 2, wherein: the first end is provided with a first reference surface, and the bottom of the bending part is flush with the first reference surface.

4. The power terminal of claim 2, wherein: the clamping part is connected with the bending part through a connecting part.

5. The power terminal of claim 4, wherein: the width of the clamping part is larger than that of the connecting part.

6. The power terminal of claim 1, wherein: the included angle between the clamping part and the first end ranges from 20 degrees to 30 degrees.

7. Welding structure of power supply terminal and heater, its characterized in that: the power terminal comprises a heating wire and the power terminal as claimed in any one of claims 1 to 6, wherein the heating wire is located between the first end and the clamping portion and is connected through a fusion zone formed by solidification of a fusion part in a butt-welding process.

8. The welding structure of the power supply terminal and the heater according to claim 7, wherein: the first end has a pin face, the clamping portion has a second datum face, and the pin face and the second datum face are flush.

9. Kitchen appliance, its characterized in that: a welding structure including the power supply terminal and the heater as claimed in any one of claims 7 to 8.