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CN-122025321-A - Scalable adjusting resistor

CN122025321ACN 122025321 ACN122025321 ACN 122025321ACN-122025321-A

Abstract

The invention relates to the technical field of resistors, in particular to a telescopic adjusting resistor, which comprises a cylinder body, wherein a central column is axially fixed on the cylinder body, a guide ring is fixed on the central column, a plurality of linkage rods are circumferentially and separately arranged in a guide ring, each linkage rod is in sliding fit with the guide ring, each linkage rod is fixedly provided with an insulating locating plate, each locating plate is fixedly provided with a resistor sheet made of metal, different resistor sheets are mutually connected in series or in parallel, a yielding hole is formed in the side wall of the cylinder body, the resistor sheets are aligned with the yielding hole, and a driving assembly for driving the linkage rods to slide is further arranged on the cylinder body so as to drive the resistor sheets to extend out of the cylinder body through the yielding hole or drive the resistor sheets to retract into the cylinder body. The resistor can be retracted into the cylinder, is convenient to transport and protect when not in use, can be moved out of the cylinder when in use, dissipates heat by utilizing the surrounding low-temperature environment and natural wind, and avoids the energy consumption of blowing and dissipating heat by a fan when the power consumption is low.

Inventors

  • CHEN YONGGANG
  • XIE QINGJIAN
  • HUANG HE
  • HE JINQUAN
  • LIU JINPING
  • CHEN CHANGRONG

Assignees

  • 湖南福德电气有限公司
  • 广东福德电子有限公司
  • 株洲福德轨道交通研究院有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1. The telescopic adjusting resistor is characterized by comprising a circular cylinder body (1), wherein a center column (2) is fixed on the cylinder body (1) along the axial direction, guide rings (3) are fixed on sections of the center column (2) in the cylinder body (1), a plurality of linkage rods (4) are arranged around the circumference in a separated mode, the linkage rods (4) are arranged along the radial direction of the cylinder body (1) and are in sliding fit with the guide rings (3), an insulating positioning plate (5) is fixed on the end portion, far away from the guide rings (3), of each linkage rod (4), the positioning plate (5) is an arc-shaped plate parallel to the inner wall of the cylinder body (1), metal resistor pieces (6) are fixed on each positioning plate (5), different resistor pieces (6) are connected in series or in parallel, a position-keeping hole (11) is formed in the side wall of the cylinder body (1), the resistor pieces (6) are aligned with the position-keeping hole (11), and a driving component (7) for driving the linkage rods (4) to slide is further arranged to drive the resistor pieces (6) to extend out of the cylinder body (1) through the position-keeping hole (11) or drive the resistor pieces (6) to retract into the cylinder body (1).
  2. 2. The scalable resistor according to claim 1, wherein the relief holes (11) are elongated holes arranged in the axial direction of the cylinder (1), the length direction of the resistor sheet (6) is parallel to the axial direction of the cylinder (1), and the width direction of the resistor sheet (6) is arranged in the radial direction of the cylinder (1).
  3. 3. The scalable resistor according to claim 2, wherein more than two resistor blocks (6) are fixed to the same positioning plate (5).
  4. 4. The scalable resistor according to claim 1, wherein the two ends of the cylinder (1) are respectively provided with a cover plate (12) covering the ports thereof, and the center shaft is fixedly installed to the cover plates (12).
  5. 5. The scalable resistor of claim 4, wherein the driving assembly (7) comprises a driving rod (71), the driving rod (71) can pass through the cover plate (12) in a rotating way, a gear (72) is fixed on the driving rod (71), the linkage rod (4) is provided with teeth matched with the gear (72), and external force operates the driving rod (71) to rotate, so that the linkage rod (4) is driven to move along the radial direction of the cylinder body (1).
  6. 6. The telescopic resistor according to claim 5, wherein the central column (2) is divided into two sections of columns, the two sections of columns are respectively fixed on cover plates (12) at two ends of the cylinder (1), the two sections of columns are respectively provided with the guide ring (3), the linkage rod (4), the positioning plate (5), the resistor sheet (6) and the driving assembly (7), and the two sections of columns and the cover plates (12) form an integral module to be matched with the cylinder (1).
  7. 7. The scalable resistor according to claim 6, wherein the cover plate (12) is detachably connected to the cylinder (1).
  8. 8. The scalable resistor according to claim 1, wherein the guide ring (3) is provided with a guide groove (31), and the partial segment of the linkage rod (4) is inserted into the guide groove (31) in a directional sliding manner.
  9. 9. The scalable resistor according to claim 1, characterized in that a support ring (8) is further provided outside the center column (2), and each linkage rod (4) slidably penetrates the support ring (8).
  10. 10. The scalable resistor according to claim 1, wherein the positioning plate (5) and the resistor disc (6) are detachably and fixedly connected to each other.

Description

Scalable adjusting resistor Technical Field The invention relates to the technical field of resistors, in particular to a scalable regulating resistor. Background The load box (also called as LOADBANK) is a power supply detection device, mainly used for detecting and maintaining loads of a generator, an Uninterruptible Power Supply (UPS), a storage battery and power transmission equipment, and is a tool device for periodically testing and maintaining the generator set and the UPS. The test bed can be used for load tests of hospitals, data centers, factory enterprises and the like. With the development of power electronics, the requirements on the integration level of equipment are higher and higher, the requirements on load equipment are higher and higher, and the requirements on the complex use environment are higher and higher, in particular to the use of loads in high-temperature environments. According to the manufacturing requirements, according to the conventional thought, the resistors are correspondingly arranged in the box body since the box body is arranged. The existing load box is characterized in that two ends of the resistor strip are respectively arranged on the side wall of the box body, the resistor strip is positioned inside the resistor box, and forced air cooling is carried out by means of a fan at the bottom of the resistor box. Because the resistor strip is accommodated in the box body, the fan is automatically started to take away the heat in the box body as long as the resistor is electrified, so that the fan is started even under the condition of lower power consumption and low heat, the energy consumption is higher, and the service life of the fan is shortened. Disclosure of Invention The present invention provides a scalable resistor, which solves all or part of the above-mentioned problems of the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: The telescopic adjusting resistor comprises a circular cylinder body, wherein a central column is axially fixed on the cylinder body, a guide ring is fixed on a section, located in the cylinder body, of the central column, a plurality of linkage rods are circumferentially arranged in a separated mode, each linkage rod is radially arranged along the cylinder body and is in sliding fit with the guide ring, an insulating locating plate is fixed on the end, far away from the guide ring, of each linkage rod, the locating plate is an arc-shaped plate parallel to the inner wall of the cylinder body, resistor pieces made of metal are fixed on the locating plates, different resistor pieces are mutually connected in series or in parallel, a yielding hole is formed in the side wall of the cylinder body, the resistor pieces are aligned with the yielding hole, and a driving assembly used for driving the linkage rods to slide is further arranged on the cylinder body so as to drive the resistor pieces to extend out of the cylinder body through the yielding hole or drive the resistor pieces to retract into the cylinder body. Specifically, the hole of stepping down is the rectangular hole of arranging along the axial of barrel, and the length direction of resistance card is on a parallel with the axial of barrel, and the width direction of resistance card is along barrel radial arrangement. Specifically, more than two resistor blocks are fixed on the same positioning plate. Specifically, the two ends of the cylinder body are respectively provided with a cover plate for covering the ports of the cylinder body, and the central shaft is fixedly arranged on the cover plates. Specifically, the drive assembly includes the actuating lever, and the actuating lever can pass the apron rotationally, and the actuating lever is fixed with the gear, and the gangbar is equipped with the tooth of cooperation gear, and external force operation rotates the actuating lever, and drives the gangbar along barrel radial movement. Specifically, the center column is divided into two sections of cylinders, the two sections of cylinders are respectively fixed on cover plates at two ends of the cylinder, and the two sections of cylinders are respectively provided with the guide ring, the linkage rod, the positioning plate, the resistor disc and the driving assembly and form an integral module with the cover plates to be matched with the cylinder. Specifically, the cover plate and the cylinder body are detachably and fixedly connected with each other. Specifically, the guide ring is provided with a guide groove, and the local section of the linkage rod is directionally and slidingly penetrated in the guide groove. Specifically, a supporting ring is arranged outside the central column, and each linkage rod slidably penetrates through the supporting ring. Specifically, the positioning plate and the resistor disc are detachably and fixedly connected with each other. The invention has the beneficial effects that: The teles