CN201387776Y - Glazed power resistor - Google Patents

Abstract

The utility model provides a glazed power resistor, which is characterized in that T-shaped grooves are formed at two ends of a porcelain tube (4), and the T-shaped grooves are encapsulated through inorganic material (1) after T-shaped soldering lugs are filled therein; the end (7) of a resistance wire (5) winding on the glazed pipe is welded firmly at the root of the soldering lugs; and a glazed layer (6) is coated on resistance wire and at the root of the soldering lugs. The utility model has the advantages that the original welding red copper material is saved, and the material identical with alloy wire is welded with the brass, thereby saving raw material and improving the welding reliability and the finished product qualification rate of the resistor; and the soldering lugs are matched with the T-shaped glazed pipe and the T-shaped grooves, thereby reducing the size, increasing the intensity, eliminating the phenomenon that the leading-out soldering lugs of the original resistor are broken pieces or serrated steps, improving the appearance quality of the products and reducing the cost of the resistor.

Description

A kind of by the glaze power resistor

Technical field:

The utility model relates to a kind of electronic component, and is particularly a kind of by the power resistor of glaze.

Background technology:

Existing power is by the glaze resistor, its weld tabs of drawing of drawing in the weldering end structure is made up of two kinds of materials, be brass weld tabs and copper belt intermediate plate, the intermediate plate of red copper material is processed into the flat triangle in bottom surface, the weld tabs of brass material is inserted in the triangle, again with intermediate plate both sides locking, an integral body insert again and have in the porcelain body that has dovetail groove, encapsulate with inorganic envelope material.Have defective: 1, to weld difficulty very big together for three kinds of different materials, and the dry joint rate is very high, and particularly the high resistance measurement open circuit is different from higher to cause resistance.2, because two kinds of materials of weld tabs are triangular in shape, take porcelain body dovetail space, strengthen and reduce porcelain tube coattail end mechanical strength, rapid wear.3,, cause resistor weld tabs end glaze layer to forming mashed piece or sawtooth step, directly to have been influenced the presentation quality of resistor by last because weld tabs and red copper intermediate plate will have certain altitude.

The utility model content:

The purpose of this utility model is exactly in order to overcome the above-mentioned shortcoming that prior art exists, and propose at this shortcoming a kind of improved by the glaze power resistor.

To achieve these goals, the utility model has been taked following technical scheme:

A kind of by the glaze power resistor, it comprises porcelain tube, the porcelain tube two ends are respectively equipped with weld tabs, the resistive conductor of winding is connected on the weld tabs on the porcelain tube, resistive conductor and weld tabs root all apply the glaze layer, it is characterized in that: the weld tabs cross section is the T type, and the porcelain tube two ends are respectively equipped with the T type groove that matches with weld tabs, T type weld tabs pack into cooperate the location in the T type groove after, port encapsulates with inorganic material.

Owing to adopted technique scheme, made to the utlity model has following advantage: deleted the red copper material that is difficult to weld, saved nonferrous materials; Adopt the welding of alloy wire identical materials and brass, improved the product qualified rate of welding reliability and resistor.Weld tabs adopts the T type, and change the former dovetail grooved of porcelain body into T type groove, size has been dwindled, porcelain tube body intensity has also increased, eliminated original resistance and drawn the phenomenon of weld tabs place for mashed piece and sawtooth step, improved and improve resistor outward appearance product quality, the product percent of pass increase rate is bigger, make it the resistor cost and reduce, strengthened this competition capability.

Description of drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1.

Embodiment:

As shown in Figure 1 and Figure 2, what the utility model provided is a kind of by the glaze power resistor, and it comprises porcelain tube 4, the porcelain tube two ends are respectively equipped with T type groove, weld tabs 2 cross sections are the T type, and its foot is provided with the lower margin 3 that is bent into 90 degree to both sides, and it and weld tabs main part constitute T type structure.After T type weld tabs was packed in the T type groove, port was with inorganic material 1 encapsulation.Winding in the termination 7 of the resistive conductor on the porcelain tube 5 at the weld tabs root behind three circles, they are welded, all apply glaze layer 6 at resistive conductor and weld tabs root at last, form a kind of at last by the glaze power resistor.

Claims (1)

1, a kind of by the glaze power resistor, it comprises porcelain tube, the porcelain tube two ends are respectively equipped with weld tabs, the resistive conductor of winding is connected on the weld tabs on the porcelain tube, resistive conductor and weld tabs root all apply the glaze layer, it is characterized in that: the weld tabs cross section is the T type, and the porcelain tube two ends are respectively equipped with the T type groove that matches with weld tabs, T type weld tabs pack into cooperate the location in the T type groove after, port encapsulates with inorganic material.

Images