CN215451330U

CN215451330U - Electrode with novel structure

Info

Publication number: CN215451330U
Application number: CN202121371921.0U
Authority: CN
Inventors: 殷尧平
Original assignee: CHANGZHOU YUYU ELECTRIC LIGHT APPLIANCE CO LTD
Current assignee: CHANGZHOU YUYU ELECTRIC LIGHT APPLIANCE CO LTD
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-07
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a novel structure electrode which comprises a core bar and an electrode, wherein the core bar and the electrode are fixed in a clamping manner. The core bar and the electrodes are fixed in a clamping mode, the traditional welding mode is replaced for fixation, the advantage of high positioning precision of the core bar and the electrodes is achieved, and meanwhile the phenomenon of electrode damage cannot occur.

Description

Electrode with novel structure

Technical Field

The utility model relates to the field of projection lamps, high-pressure lamps or discharge lamps, in particular to an electrode adopted in the projection lamps, the high-pressure lamps or the discharge lamps, and particularly relates to an electrode with a novel structure.

Background

An electrode is a component in an electronic or electrical device or equipment and is used as two ends for inputting or outputting current in a conductive medium (solid, gas, vacuum or electrolyte solution). One pole of the input current is called anode or positive pole, and the other pole of the output current is called cathode or negative pole. The electrodes are of various types, such as cathodes, anodes, welding electrodes, furnace electrodes, and the like.

In a battery, an electrode generally refers to a site where a redox reaction with an electrolyte solution occurs. The electrode has positive and negative parts, the positive electrode is a cathode to obtain electrons and generate reduction reaction, the negative electrode is an anode to lose electrons and generate oxidation reaction. The electrodes may be metal or non-metal, so long as they are capable of exchanging electrons with the electrolyte solution, i.e., become electrodes.

In the field of projection lamps, high-pressure lamps or discharge lamps, the core rod is generally fixed by inserting electrodes at one end and then welding the electrodes together (the electrode material is barium tungsten, pure tungsten, thorium tungsten, etc., and the core rod material is mainly molybdenum). Welding can produce high temperature, and the tungsten electrode leads to part electron to become invalid because of high temperature damage easily, has reduced the electrode life-span, needs earlier location before the welding moreover, and the operation is more loaded down with trivial details, even location before the welding, the welding precision is also not high after accomplishing. Moreover, the phenomenon of welding leakage is easy to occur during welding, so that the welding is not uniform, and the problem of non-uniform point-to-point of the connection part of the core bar and the electrode is caused.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the electrode core bar welding device aims at solving the technical problems that in the prior art, an electrode and a core bar are fixed in a welding mode, so that the electrode core bar welding device is easy to damage and uneven in welding and low in precision.

The utility model provides a novel structure electrode which comprises a core bar and an electrode, wherein the core bar and the electrode are fixed in a clamping manner.

The core bar and the electrodes are fixed in a clamping mode, the traditional welding mode is replaced for fixation, the advantage of high positioning precision of the core bar and the electrodes is achieved, and meanwhile the phenomenon of electrode damage cannot occur.

Furthermore, the electrode is provided with a groove, and one end of the core rod is inserted into the groove to realize clamping. So set up, the electrode is connected to the core bar joint, and it is more convenient to operate.

Furthermore, a plurality of first convex rings are arranged on the groove wall of the groove, a plurality of second convex rings are arranged at one end of the core rod, and the first convex rings and the second convex rings are arranged in a staggered mode. The first convex rings and the second convex rings are arranged in a staggered mode, so that the first convex rings are connected with the clamping grooves formed by the second convex rings in a clamped mode, the second convex rings are connected with the clamping grooves formed by the first convex rings in a clamped mode, the clamping connection of the core bar and the electrode is achieved, the structure is simple, and the clamping connection is firm.

The first convex ring plays a role of blocking when the core rod is inserted into the groove, so that the core rod is difficult to insert into the groove, and the problem is further improved and solved. So set up, the terminal surface of first bulge loop all has the guide effect with the terminal surface of second bulge loop, not only is convenient for the core bar and pegs graft in the recess, still makes the core bar joint more firm.

Further, the number of the second convex rings is larger than that of the first convex rings. So set up, increased the draw-in groove quantity that the second bulge loop constitutes, core bar and electrode are changeed and are realized the joint.

The core rod and the groove are cylindrical and are difficult to insert, so that the problem is further solved in an improved mode. The taper of the groove is 2-2.2 degrees, and the taper of the insertion end of the core rod is 1.5-1.8 degrees; the depth of the groove is between 1.12 times and 1.15 times of the length of the insertion end of the core rod. So set up, recess and core bar insert the end all have the guide effect, and it is easier that the core bar inserts the recess.

Preferably, the core rod is made of molybdenum, and the electrodes are made of barium tungsten, tungsten or thorium tungsten.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the clamping connection between the core rod and the electrode;

FIG. 3 is a schematic illustration of an insertion end of a core pin;

FIG. 4 is a front view of the electrode;

in the figure: 1. a core bar; 2. an electrode; 3. a groove; 4. a first convex ring; 5. a second convex ring.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Example 1:

as shown in fig. 1 to 4, the utility model discloses a novel structure electrode, which comprises a core bar 1 and an electrode 2, wherein the core bar 1 is made of molybdenum, and the electrode 2 is made of tungsten. The electrode 2 is provided with a horn-mouth-shaped groove 3, and the taper of the groove 3 is set to be 2 degrees; the groove wall of the groove 3 is provided with a plurality of first convex rings 4 with saw-tooth-shaped sections.

One end of the core bar 1 is provided with a plurality of second convex rings 5 with saw-tooth-shaped sections, and the number of the second convex rings 5 is larger than that of the first convex rings 4.

The insertion end of the core rod 1 is of a tapered structure, the taper is set to be 1.5 degrees, and the depth of the groove 3 is between 1.12 times and 1.15 times of the length of the insertion end of the core rod 1. Wherein the roughness of the surface of the end of the core bar 1 inserted into the electrode 2 is not less than Ra12.6, and the roughness of the inner surface of the groove of the electrode 2 is not less than Ra12.6; an insertion end of the core bar 1 is inserted into the groove 3, the first convex rings 4 and the second convex rings 5 are arranged in a staggered mode, the first convex rings 4 are connected with a clamping groove formed by the second convex rings 5 in a clamped mode, the second convex rings 5 are connected with a clamping groove formed by the first convex rings 4 in a clamped mode, and therefore the core bar 1 is connected with the electrodes 2 in a clamped mode.

The zigzag design of first bulge loop 4 and second bulge loop 5 makes the terminal surface of first bulge loop 4 all have the guide effect with the terminal surface of second bulge loop 5, not only is convenient for core bar 1 peg graft in recess 3, still makes core bar 1 joint more firm. The bell mouth design of the groove 3 and the necking design of the insertion end of the core rod 1 have guiding functions, and the core rod 1 is easier to insert into the groove 3.

The quantity of second bulge loop 5 is greater than the quantity of first bulge loop 4, has increased the draw-in groove quantity that second bulge loop 5 constitutes, and core bar 1 and electrode 2 are changeed and are realized the joint.

Example 2: compared with the embodiment 1, the differences are as follows: the taper of the groove 3 is 2.2 degrees, and the taper of the insertion end of the core rod 1 is 1.8 degrees.

The utility model has convenient operation, automatic positioning and high positioning precision; under the operation of the installation method, the core bar 1 and the electrode 2 avoid the influence of the traditional high-temperature welding, and then the problem that the joint of the core bar 1 and the electrode 2 is not uniform due to uneven welding does not exist, and the electrode 2 is not damaged.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A novel structure electrode is characterized in that: the electrode comprises a core bar (1) and an electrode (2), wherein the core bar (1) and the electrode (2) are fixed in a clamping manner;

the electrode (2) is provided with a groove (3), and one end of the core rod (1) is inserted into the groove (3) and clamped;

the groove wall of the groove (3) is provided with a plurality of first convex rings (4), one end of the core rod (1) is provided with a plurality of second convex rings (5), and the first convex rings (4) and the second convex rings (5) are arranged in a staggered mode.

2. The novel structural electrode of claim 1, wherein: the sections of the first convex ring (4) and the second convex ring (5) are both in a sawtooth shape.

3. The novel structural electrode of claim 2, wherein: the number of the second convex rings (5) is larger than that of the first convex rings (4).

4. The novel structural electrode of claim 1, wherein: the groove (3) is in a horn mouth shape, and the insertion end of the core rod (1) is in a gradually reducing structure.

5. The novel structured electrode as claimed in claim 4, wherein: the taper of the groove (3) is 2-2.2 degrees, and the taper of the insertion end of the core rod (1) is 1.5-1.8 degrees; the depth of the groove (3) is between 1.12 times and 1.15 times of the length of the insertion end of the core rod (1).

6. The novel structural electrode of claim 1, wherein: the core rod (1) is made of molybdenum, and the electrodes (2) are made of barium tungsten, tungsten or thorium tungsten.