阅读说明：本技术 一种稳定型带式电阻器 (Stable band resistor ) 是由 谢庆坚 廖汉卿 周立强 王锦全 于 2019-11-26 设计创作，主要内容包括：本发明的一种稳定型带式电阻器,包括沿纵向排列的多个电阻单元,每个电阻单元包括并列的两条绝缘杆、多条电阻带、绝缘子支柱和多个U形的弯头,绝缘杆的两端部分别固定有绝缘子支柱,从而将相邻两个电阻单元分隔；多个U形的弯头将多条电阻带串联起来；每条电阻带包括一体冲压成型的带本体和折弯部,折弯部沿带本体的长度方向布置,折弯部与带本体相互呈100°～170°度布置；绝缘杆一体成型有倾斜的限位板,电阻带的带本体的两端部分别贴紧固定于两条绝缘杆的限位板,从而使得电阻带倾斜布置。与现有技术相比,由于电阻带沿长度方向冲压成型有折弯部,且带本体倾斜布置,结构牢固,能耐受更高电动应力,不易变形。(The invention discloses a stable band resistor, which comprises a plurality of resistor units which are arranged along the longitudinal direction, wherein each resistor unit comprises two parallel insulating rods, a plurality of resistor bands, insulator pillars and a plurality of U-shaped elbows; a plurality of U-shaped elbows connect a plurality of resistance bands in series; each resistance band comprises a band body and a bending part which are integrally formed in a punching mode, the bending part is arranged along the length direction of the band body, and the bending part and the band body are mutually arranged in an angle of 100-170 degrees; the insulating rod integrated into one piece has the limiting plate of slope, and the two ends of taking the body of resistance area paste respectively tightly and are fixed in the limiting plate of two insulating rods to make the resistance area slope arrange. Compared with the prior art, because resistance area has the portion of bending along length direction stamping forming, and takes the body slope to arrange, the sound construction can tolerate higher electrical stress, non-deformable.)

1. A stable band resistor characterized by: the resistor comprises a plurality of resistor units which are arranged along the longitudinal direction, wherein each resistor unit comprises two parallel insulating rods, a plurality of resistor belts, insulator pillars and a plurality of U-shaped elbows, and the insulator pillars are respectively fixed at the two end parts of each insulating rod so as to separate two adjacent resistor units; a plurality of U-shaped elbows connect a plurality of resistance bands in series; each resistance band comprises a band body and a bending part which are integrally formed in a punching mode, the bending part is arranged along the length direction of the band body, and the bending part and the band body are mutually arranged in an angle of 100-170 degrees; the insulating rods are integrally formed with inclined limiting plates, and the two end portions of the belt body of the resistance belt are respectively attached to the limiting plates fixed on the two insulating rods, so that the resistance belt is obliquely arranged.

2. A stabilized ribbon resistor according to claim 1, wherein: insulator supports of two adjacent layers of resistor units are arranged in a staggered mode in the longitudinal direction.

3. A stabilized ribbon resistor according to claim 1, wherein: the bending part and the belt body are arranged at an angle of 135 degrees.

4. A stabilized ribbon resistor according to claim 1, wherein: the belt body is stamped to form reinforcing protrusions.

5. A stabilized ribbon resistor according to claim 1, wherein: the insulating rod is a tetragonal porcelain rod, and the limiting plate is positioned at the top of the insulating rod.

6. A stabilized ribbon resistor according to claim 1, wherein: the two ends of the elbow are attached to the end parts of the two adjacent resistance belts, and the two ends of the elbow and the belt bodies of the resistance belts are locked on the limiting plates of the insulating rods.

7. A stabilized ribbon resistor according to claim 6, wherein: this stable form band resistor still includes the locking bolt subassembly, the both ends of elbow with the area body in resistance area all passes through the locking bolt subassembly is fixed in the limiting plate of insulator spindle.

Technical Field

The invention relates to the technical field of resistors, in particular to a resistor which is suitable for limiting a direct-current component of a short-circuit test current in a primary loop of an impulse generator system in a high-voltage test or a resistor for inhibiting a direct-current magnetic bias current between a neutral point of a transformer and the ground, and particularly relates to a stable band resistor.

Background

At present, the belt type resistor has various forms, most resistor structures are too complex, and the production and assembly mode is quite complicated. The conventional belt resistor comprises a resistance belt which is continuously bent in a circuitous way, supports are welded at each circuitous bent part of the resistance belt, and then the supports are strung together by using screws. Since the segments of the resistive band are erected (the side faces are in the horizontal direction), the middle part of the resistive band is easy to arch and deform under the high-current impact.

Disclosure of Invention

In view of the above technical problems in the prior art, the present invention provides a stable band resistor that is not easily deformed.

In order to achieve the purpose, the invention provides the following technical scheme:

providing a stable band resistor, which comprises a plurality of resistor units arranged along the longitudinal direction, wherein each resistor unit comprises two parallel insulating rods, a plurality of resistor bands, insulator pillars and a plurality of U-shaped bends, and the insulator pillars are respectively fixed at the two end parts of the insulating rods so as to separate the two adjacent resistor units; a plurality of U-shaped elbows connect a plurality of resistance bands in series; each resistance band comprises a band body and a bending part which are integrally formed in a punching mode, the bending part is arranged along the length direction of the band body, and the bending part and the band body are mutually arranged in an angle of 100-170 degrees; the insulating rods are integrally formed with inclined limiting plates, and the two end portions of the belt body of the resistance belt are respectively attached to the limiting plates fixed on the two insulating rods, so that the resistance belt is obliquely arranged.

Specifically, the insulator pillars of two adjacent layers of resistor units are arranged in a staggered mode in the longitudinal direction.

Specifically, the bending part and the belt body are arranged at an angle of 135 degrees.

Specifically, the belt body is stamped to form a reinforcing protrusion.

Specifically, the insulating rod is a tetragonal porcelain rod, and the limiting plate is located at the top of the insulating rod.

Specifically, the two ends of the elbow are attached to the end portions of the two adjacent resistance belts, and the two ends of the elbow and the belt body of the resistance belt are locked on the limiting plates of the insulating rod.

Specifically, this stable form band resistor still includes the locking bolt subassembly, the both ends of elbow with the area body in resistance area all passes through the locking bolt subassembly is fixed in the limiting plate of insulator spindle.

The invention has the beneficial effects that:

the stable band resistor comprises a plurality of resistor units which are arranged longitudinally, wherein each resistor unit comprises two parallel insulating rods, a plurality of resistor bands, insulator pillars and a plurality of U-shaped elbows, and the insulator pillars are respectively fixed at the two end parts of each insulating rod so as to separate two adjacent resistor units; a plurality of U-shaped elbows connect a plurality of resistance bands in series; each resistance band comprises a band body and a bending part which are integrally formed in a punching mode, the bending part is arranged along the length direction of the band body, and the bending part and the band body are mutually arranged in an angle of 100-170 degrees; the insulating rod integrated into one piece has the limiting plate of slope, and the two ends of taking the body of resistance area paste respectively tightly and are fixed in the limiting plate of two insulating rods to make the resistance area slope arrange. Compared with the prior art, because resistance area has the portion of bending along length direction stamping forming, and takes the body slope to arrange, the sound construction can tolerate higher electrical stress, non-deformable.

Drawings

Fig. 1 is a schematic diagram of a stable band resistor in an embodiment.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic structural view of an insulating rod of the stabilized band resistor in the embodiment.

Fig. 4 is a schematic diagram of the structure of the resistive strip of the stable band resistor in the embodiment.

Fig. 5 is a schematic diagram of the structure of the bend of the stable band resistor in the embodiment.

Reference numerals:

the insulation rod 1 and the limit plate 11;

resistance band 2, band body 21, reinforcing protrusion 211, bending part 22;

an insulator post 3;

an elbow 4;

the bolt assembly 5 is locked.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.

The stable band resistor of the present embodiment, as shown in fig. 1 to 5, includes five resistor units arranged along a longitudinal direction, each resistor unit includes two parallel insulating rods 1, a plurality of resistor strips 2, an insulator pillar 3 and a plurality of U-shaped elbows 4, the insulating rods 1 are tetragonal porcelain rods, the insulator pillars 3 are fixed to two end portions of the insulating rods 1 respectively through bolts, so as to separate two adjacent resistor units, and the insulator pillars 3 of two adjacent layers of resistor units are arranged in a staggered manner in the longitudinal direction, so that a large installation space can be made free, and the insulator pillar 3 on an upper layer is prevented from obstructing the installation of the bolt of the insulator pillar 3 on a lower layer. The plurality of U-shaped elbows 4 connect the plurality of resistance bands 2 in series end to end in sequence. Each resistance band 2 comprises a band body 21 and a bending part 22 which are integrally formed in a punching mode, the bending part 22 is arranged along the length direction of the band body 21, the bending part 22 and the band body 21 are arranged in a 135-degree mode, the actual angle can be within the range of 100-170 degrees, and a reinforcing protrusion 211 is formed in the band body 21 in a punching mode. The top of the insulating rod 1 is integrally formed with a limit plate 11 inclined at 45 degrees, and two end parts of the belt body 21 of the resistance belt 2 are respectively and tightly attached to the limit plates 11 of the two insulating rods 1, so that the resistance belt 2 is obliquely arranged.

In this embodiment, this stable form band resistor still includes locking bolt subassembly 5, and the tip of two adjacent resistance bands 2 is pasted at the both ends of elbow 4, and the both ends of elbow 4 and the area body 21 of resistance band 2 all are fixed in the limiting plate 11 of insulator spindle 1 through locking bolt subassembly 5. The bend 4 is inclined in accordance with the inclination of the belt body 21, and in the process, a bent blank in a regular U shape is first processed, and then the bottom of the bent blank is fixed, and the whole bent blank is inclined by 45 degrees toward the side, thereby forming the inclined bend 4 as shown in fig. 5.

As is known to those skilled in the art, when the middle portion of the resistive band 2 of the band resistor has a tendency to bow, the deformation directions of the resistance band 2 are all towards the positive side of the deformation position, while the resistance band 2 of the embodiment comprises a band body 21 and a bending part 22, the band body 21 is obliquely arranged along with the limit plate 11 at 45 degrees, namely the deformation tendency of the band body 21 is obliquely upwards at 45 degrees relative to the horizontal direction, the bending part 22 has a deformation trend inclined downwards at 45 degrees relative to the horizontal direction, the belt body 21 and the bending part 22 are integrally formed, the deformation part is positioned at the same cross section, so under the heavy current impact, the deformation of the resistance belt 2 needs to overcome the internal stress of the belt body 21 and the bending part 22 in different directions, therefore, the resistance band 2 of the present embodiment is less likely to be deformed as a whole, has a firm structure, and can withstand higher electrodynamic stress than conventional straight plate-shaped band resistors. Generally, it can be understood that the V-shaped iron belt is harder to bend either in the opening direction or in the back-to-opening direction (the back-to-opening direction is harder to bend, and the opening direction is generally the direction of the internal stress deformation), compared with the regular belt-shaped iron belt.

In addition, the resistance belt 2 is obliquely arranged, so that the whole volume is smaller, and the structure is more compact.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.