Terminal connecting structure of heating plate

Abstract

The utility model discloses a heating plate terminal connecting structure which comprises a ceramic bead of a hollow structure, an inserting piece and a connecting piece. The upper end of the inserting piece is provided with a long-strip-shaped inserting hole, the shape of the inserting piece is matched with that of the inserting hole, the lower end of the inserting piece is inserted into the inserting hole, the connecting piece is connected to the upper end of the inserting piece, and the connecting piece is provided with a screw hole connected with an external wire. The long-strip-shaped inserting holes are formed in the porcelain beads, the inserting pieces are arranged to be of the flat structures, and the connecting pieces are welded to the inserting pieces, so that after the inserting pieces are inserted into the inserting holes, the inserting pieces are clamped by the high-strength porcelain beads, the inserting pieces are prevented from rotating along with the connecting pieces when screws are locked, it is guaranteed that the inserting pieces and the connecting pieces can bear certain torsion force during wiring, and the wiring quality is improved. And the wiring reliability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric rice cooker technical field, especially relate to a heating disc terminal connecting structure. BACKGROUND

[0002] The electric rice cooker heating disc will be connected with the terminal, the terminal includes the porcelain bead of insulating and the conductive column inserted on the porcelain bead, the lower end of the conductive column is connected with the heating wire of the heating disc, the upper end will generally set up the screw hole, and the external wire is fixed to the conductive column by the screw, and the circuit conduction of the heating disc is realized. However, the structure of this wiring mode is simple, and the conductive column often rotates with the screw when the screw is screwed, which causes the screw to be unable to rotate downward to press the wire tightly, and the wire often fails to contact the conductive column and cannot be electrified, so that the reliability of the wiring is low. UTILITY MODEL CONTENT

[0003] (I) Utility model purpose

[0004] In order to overcome the above shortcomings, the purpose of the utility model is to provide a heating disc terminal connecting structure, so as to solve the technical problems that the wire often fails to contact the conductive column and cannot be electrified in the existing electric rice cooker heating disc, and the reliability of the wiring is low.

[0005] (II) Technical scheme

[0006] In order to achieve the above purpose, the technical scheme provided by the present application is as follows:

[0007] A heating disc terminal connecting structure, comprising: a hollow structure porcelain bead, an upper end is provided with a long strip-shaped insertion hole, a tab is matched with the shape of the insertion hole and inserted into the insertion hole, and a connecting piece is connected to the upper end of the tab, wherein a screw hole connected with an external wire is formed on the connecting piece;

[0008] The present application sets up the tab to be a flat structure by setting the long strip-shaped insertion hole on the porcelain bead, and the connecting piece is welded to the tab, so that when the tab is inserted into the insertion hole, the tab is clamped by the high-strength porcelain bead, preventing the tab from rotating with the screw when the connecting piece is locked, ensuring that the tab and the connecting piece can withstand a certain torsion when wiring, and ensuring the reliability of the wiring.

[0009] In some embodiments, the connecting piece is welded to the tab.

[0010] In some embodiments, the upper end of the porcelain bead forms a cylindrical structure insertion part, and the lower end extends radially outward to form a fixing part with a diameter larger than the insertion part;

[0011] By optimizing the structure of the porcelain bead, the diameter of the fixing part at the lower end of the porcelain bead is set to be larger, so as to ensure the stable connection of the porcelain bead and the heating disc, and avoid the connection between the porcelain bead and the heating disc from being loose due to the large torsion of the porcelain bead when the screw is screwed.

[0012] In some embodiments, the connecting piece is outwardly protruded on both sides to form two limiting clamping parts which abut against both sides of the inserting piece;

[0013] If the connecting piece and the inserting piece are not firmly welded, the torsion that the connecting piece can withstand is reduced, the two limiting clamping parts can assist in increasing the connection strength between the inserting piece and the connecting piece, so that the connecting part of the inserting piece and the connecting piece is not easily broken under a large torsion, in addition, the contact between the limiting clamping part and the connecting piece also ensures the tightness of the connection between the inserting piece and the connecting piece, so that a gap is not easily generated between the inserting piece and the connecting piece, the contact area between the inserting piece and the connecting piece is small, and the heat generation is serious. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a state diagram of the terminal connection structure of the heating disc installed on the heating disc of the utility model;

[0015] Figure 2 is an explosion diagram of the terminal connection structure of the heating disc installed on the heating disc of the utility model;

[0016] Figure 3 is a structure diagram of the terminal connection structure of the heating disc of the utility model;

[0017] Figure 4 is a sectional view of the terminal connection structure of the heating disc of the utility model;

[0018] Figure 5 is an explosion diagram of the terminal connection structure of the heating disc of the utility model;

[0019] Figure 6 is a structure diagram of the terminal connection structure of the heating disc of the utility model.

[0020] Reference signs:

[0021] 1, heating disc; 2, porcelain bead; 201, inserting hole; 202, inserting part; 203, fixed part; 3, inserting piece; 4, connecting piece; 401, screw hole; 402, limiting clamping part. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below by combining with specific implementation manners and referring to the drawings. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] The utility model provides a kind of heating disc terminal connection structure, comprising: hollow structure's porcelain bead 2, upper end is equipped with the long strip shape's through porcelain bead 2's insertion hole 201, and the insertion piece 3 of shape matching with insertion hole 201 and lower end insertion into insertion hole 201, connecting piece 4 is connected in the upper end connection of insertion piece 3, wherein, connecting piece 4 is equipped with the screw hole 401 connected with external wire on it.

[0024] Specifically, heating disc 1 is provided with mounting hole, porcelain bead 2 lower end is inserted into mounting hole, insertion piece 3 is flat structure, lower end is inserted into the insertion hole 201 of porcelain bead 2 and is connected with heating wire arranged in the inside of heating disc 1, connecting piece 4 is right angle structure, upper end is equipped with screw hole 401, lower end is welded with the upper end of insertion piece 3.

[0025] Specifically, when wiring, screw is inserted into screw hole 401, screw is screwed, and wire is pressed onto connecting piece 4 by screw.

[0026] Preferably, the structure of porcelain bead 2 is further optimized in the application, the upper end of porcelain bead 2 is arranged as cylindrical structure to form insertion part 202, the lower end of porcelain bead 2 extends radially outward to form fixing part 203, and the diameter of fixing part 203 is greater than that of insertion part 202.

[0027] Preferably, two limiting clamping parts 402 are arranged on both sides of connecting piece 4, and the two limiting clamping parts 402 protrude outward and abut against both sides of insertion piece 3.

[0028] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute a limitation on the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A heating plate terminal connection structure, characterized in that, The application relates to a hollow ceramic bead (2) with a long strip-shaped insertion hole (201) in the upper end, an insertion sheet (3) matching the shape of the insertion hole (201) and inserted into the insertion hole (201), a connecting sheet (4) connected to the upper end of the insertion sheet (3), wherein a screw hole (401) for connecting with external wires is formed in the connecting sheet (4). The connecting sheet (4) is welded to the insertion sheet (3).

2. The heat disc terminal connection structure according to claim 1, characterized by The upper end of the ceramic bead (2) is formed into a cylindrical insertion part (202), and the lower end extends radially outward to form a fixing part (203), wherein the diameter of the fixing part (203) is larger than that of the insertion part (202).

3. The heat disc terminal connection structure according to claim 1, characterized by The connecting sheet (4) is formed into two limiting clamping parts (402) on the two sides and outwardly protruding to abut against the two sides of the insertion sheet (3).

4. The terminal connection structure of the heat disc according to any one of claims 1 to 3, characterized in that, ​

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