CN116190028A - Stepless regulation slide rheostat - Google Patents

Stepless regulation slide rheostat Download PDF

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Publication number
CN116190028A
CN116190028A CN202310473449.9A CN202310473449A CN116190028A CN 116190028 A CN116190028 A CN 116190028A CN 202310473449 A CN202310473449 A CN 202310473449A CN 116190028 A CN116190028 A CN 116190028A
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CN
China
Prior art keywords
resistance wire
ring
sliding sleeve
sleeve
wire winding
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Granted
Application number
CN202310473449.9A
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Chinese (zh)
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CN116190028B (en
Inventor
张鹏
赖卫国
周尧
赵兴炳
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Chengdu Xiaobu Technology Co ltd
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Chengdu Xiaobu Technology Co ltd
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Priority to CN202310473449.9A priority Critical patent/CN116190028B/en
Publication of CN116190028A publication Critical patent/CN116190028A/en
Application granted granted Critical
Publication of CN116190028B publication Critical patent/CN116190028B/en
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Anticipated expiration legal-status Critical

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C10/00Adjustable resistors
    • H01C10/30Adjustable resistors the contact sliding along resistive element
    • H01C10/301Adjustable resistors the contact sliding along resistive element consisting of a wire wound resistor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C10/00Adjustable resistors
    • H01C10/30Adjustable resistors the contact sliding along resistive element
    • H01C10/32Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C10/00Adjustable resistors
    • H01C10/30Adjustable resistors the contact sliding along resistive element
    • H01C10/38Adjustable resistors the contact sliding along resistive element the contact moving along a straight path

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)
  • Thermistors And Varistors (AREA)

Abstract

The invention belongs to the technical field of varistors, and in particular relates to a stepless adjusting sliding rheostat, which comprises: a resistance wire bobbin having a cylindrical shape and having a resistance wire spirally wound therearound; the sliding sleeve is sleeved outside the resistance wire winding barrel and can slide back and forth along the axial direction of the resistance wire winding barrel but cannot rotate relative to the resistance wire winding barrel; the manual shifting ring is coaxially sleeved on the sliding sleeve and can rotate relative to the sliding sleeve; the metal contact piece is fixedly arranged on the manual shifting ring; the contact of the metal contact piece is pressed against the outer wall of the resistance wire winding drum and is electrically contacted with the resistance wire. The scheme changes the linear motion mode of the metal contact in the traditional sliding block, so that the metal contact can move linearly and circularly, the double degrees of freedom of the linear direction and the circumferential direction of the length of the resistance wire of the sliding rheostat access circuit are realized, and the length of the resistance wire of the access circuit can be adjusted at will.

Description

Stepless regulation slide rheostat
Technical Field
The invention belongs to the technical field of varistors, and particularly relates to a stepless regulation sliding rheostat.
Background
A sliding rheostat is one of the common devices in electricity, and the working principle of the sliding rheostat is to change the resistance by changing the length of a resistance wire connected with a circuit part, so as to gradually change the magnitude of current in the circuit. The material of the resistance wire of the sliding rheostat is usually constantan wire or nichrome wire, the constantan wire or nichrome wire is wound on an insulating cylinder, two ends of the constantan wire or nichrome wire are led out by leads, when the cross section area of the resistance is fixed, the longer the resistance wire is, the larger the resistance is, the shorter the resistance wire is, the smaller the resistance is, and the sliding sheet of the rheostat contacts the resistance wire and can be adjusted to the distance between the two ends, so that the resistance from the sliding sheet to the two ends of the resistance wire is changed, and the sliding rheostat is formed.
The current adjustment process of the sliding rheostat is a stepping mode, namely, each time the rheostat needs to control the sliding sheet to move from one circle of resistance wires to the same position of one circle of resistance wires at least, the minimum adjustment quantity of the resistance is the resistance value of a single circle of resistance wires, the development of the sliding rheostat with the variable wire diameter is not facilitated, and the sliding rheostat cannot be formed by connecting different resistance wires.
Therefore, it is necessary to design a sliding rheostat structure capable of realizing stepless adjustment of the resistance value of the sliding rheostat, so that the minimum value of the adjustable resistor is below a single-circle resistance value, and the sliding rheostat is possible to be formed by resistance wires with different wire diameters and different materials.
Disclosure of Invention
In order to solve the problems in the prior art, the scheme provides a stepless adjusting slide rheostat.
The technical scheme adopted by the invention is as follows:
a continuously adjustable slide varistor comprising:
a resistance wire bobbin having a cylindrical shape and a resistance wire spirally wound;
the sliding sleeve is sleeved outside the resistance wire winding barrel and can slide back and forth along the axial direction of the resistance wire winding barrel but cannot rotate relative to the resistance wire winding barrel;
the manual shifting ring is coaxially sleeved on the sliding sleeve and can rotate relative to the sliding sleeve;
the metal contact piece is fixed on the manual shifting ring; the front end of the metal contact piece is pressed against the outer wall of the resistance wire winding drum and is electrically contacted with the resistance wire.
As an alternative or complementary design to the continuously adjustable slide varistor described above: a rolling bearing is arranged between the sliding sleeve and the manual shifting ring.
As an alternative or complementary design to the continuously adjustable slide varistor described above: and guide sliding rods are arranged at intervals outside the resistor wire winding reel, the guide sliding rods are parallel to the axis of the resistor wire winding reel, and the sliding sleeve is slidably connected with the guide sliding rods and limits the rotation of the sliding sleeve.
As an alternative or complementary design to the continuously adjustable slide varistor described above: the guide sliding rod comprises a first sliding rod and a second sliding rod; the first slide bar and the second slide bar are respectively arranged at two opposite sides of the resistance wire winding reel; the sliding sleeve is provided with a first sleeve ring part and a second sleeve ring part respectively; the first lantern ring part is slidably sleeved on the first slide rod, and the second lantern ring part is slidably sleeved on the second slide rod.
As an alternative or complementary design to the continuously adjustable slide varistor described above: an indication mark and anti-skid patterns are arranged on the outer wall of the manual shifting ring; the sliding sleeve is provided with scales.
As an alternative or complementary design to the continuously adjustable slide varistor described above: the manual shifting ring is provided with a contact mounting hole; the front end of the metal contact piece extends out from the front end of the manual shifting ring and is used for electrically contacting the resistance wire winding drum; the rear ends of the metal contact pieces penetrate through the contact piece mounting holes and extend to the rear ends of the manual shifting rings.
As an alternative or complementary design to the continuously adjustable slide varistor described above: the sliding sleeve is provided with a main ring body part which is in a circular ring shape and is positioned at the rear end of the manual shifting ring; a static contact part is arranged at the front end surface of the main ring body part; a movable contact part is arranged at the rear end of the manual shifting ring; when the manual shifting ring rotates, the movable contact part can be always electrically communicated with the static contact part.
As an alternative or complementary design to the continuously adjustable slide varistor described above: at least one of the static contact part and the dynamic contact part is in a circular ring shape or a circular arc shape; a conductive spring piece is arranged on the static contact part or the movable contact part; the static contact part and the dynamic contact part are electrically communicated through the conductive elastic sheet.
As an alternative or complementary design to the continuously adjustable slide varistor described above: the sliding sleeve part also comprises a sleeve part; the rear end of the sleeve part is connected with the main ring body part or is arranged as a whole; the manual shifting ring is rotatably sleeved outside the sleeve part; the sleeve portion is electrically isolated from the resistance wire bobbin.
As an alternative or complementary design to the continuously adjustable slide varistor described above: the resistance wire winding reel comprises a circular tube-shaped porcelain reel; the resistor wire is spirally wound on the outer wall of the porcelain barrel along the axis of the porcelain barrel; the side of the resistance wire, which is far away from the porcelain tube, exposes a conductive part; the sliding sleeve is provided with a third power receiving column which is electrically communicated with the static contact part.
The beneficial effects of the invention are as follows: the scheme changes the limit that a sliding block metal contact piece in the traditional slide rheostat can only move linearly, adopts the design of matching a manual shifting ring and a sliding sleeve piece, so that the metal contact piece can move linearly and circularly, the length of a resistance wire of an access circuit of the slide rheostat can be adjusted through double degrees of freedom in the linear direction and the circumferential direction, and the length of the resistance wire of the access circuit can be adjusted at will; the slide rheostat in this scheme can be convenient change to high-power adjustable resistance for it is possible to extend slide rheostat application to high-power range of application, say: as the brake resistor for new energy test, the application field of the slide rheostat is effectively expanded.
Drawings
In order to more clearly illustrate the embodiments of the present solution or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a sectional view of a continuously adjustable slide rheostat according to the present embodiment;
FIG. 2 is a block diagram of a manual dial engaged with a slip kit;
FIG. 3 is an enlarged block diagram of a portion A in FIG. 1;
fig. 4 is an overall structure diagram of the stepless adjustment sliding rheostat in the scheme;
fig. 5 is an overall block diagram of a continuously variable sliding varistor with a double sliding sleeve.
In the figure: 1-a first slide bar; 2-a sliding sleeve; 21-a first collar portion; 22-a second collar portion; 23-a main ring body; 24-sleeve part; 25-static contact part; 3-manual dialing ring; 31-indication mark; 32-contact mounting holes; 4-a second slide bar; 5-metal contacts; 51-a movable contact portion; 6-rolling bearings; 7-resistor wire bobbins.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only some embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present embodiment are all within the protection scope of the present solution.
Example 1
As shown in fig. 1 to 4, the present embodiment designs a stepless adjustment sliding rheostat, which comprises a resistance wire winding drum 7, a sliding sleeve 2, a manual dial 3, a metal contact 5 and other components.
The resistance wire bobbin 7 is cylindrical and has a resistance wire spirally wound; specifically, the resistance wire bobbin 7 includes a porcelain tube having a circular tube shape; the resistor wire is spirally wound on the outer wall of the porcelain barrel along the axis of the porcelain barrel; the side of the resistance wire far away from the porcelain tube exposes a conductive part. In addition, two or more kinds of resistance wires can be wound on the porcelain tube, the wire diameters of the resistance wires of different kinds can be different, and the materials of the resistance wires of different kinds can be different; the adjacent resistance wires can be electrically connected in series.
The sliding sleeve 2 is sleeved outside the resistance wire winding barrel 7, and the sliding sleeve 2 can slide back and forth along the axial direction of the resistance wire winding barrel 7 and cannot rotate relative to the resistance wire winding barrel 7; in particular, the sliding sleeve 2 may comprise a collar portion, a main ring portion 23, a sleeve portion 24, and the like.
Wherein, the sleeve part 24 is sleeved outside the resistance wire winding tube 7 and is electrically isolated from the sleeve part 24, the sleeve part 24 and the outer wall of the resistance wire winding tube can be mutually contacted or mutually separated, and the sleeve part 24 can be made of hard plastic materials; the sleeve part 24 and the outer wall of the wire-blocking winding drum can be contacted with each other; the inner wall of the sleeve portion 24 may be designed with a smooth surface so as to reduce resistance during reciprocal sliding of the sleeve portion 24 along the resistance wire bobbin 7; the inner wall of the sleeve portion 24 may also be designed to have a surface with a certain roughness so that the oxide layer outside the resistance wire on the resistance wire bobbin 7 is polished during the reciprocating movement of the sleeve portion 24 along the resistance wire bobbin 7, thereby ensuring electrical conductivity.
The main ring body 23 is fixedly connected to the rear end of the sleeve portion 24 or both are integrally formed.
The manual dial ring 3 is in a circular ring shape, the manual dial ring 3 is rotatably sleeved outside the sleeve part 24, a rolling bearing 6 can be arranged between the manual dial ring 3 and the sleeve part 24, and the rolling bearing 6 can be a customized standard bearing with an inner ring and an outer ring; only the balls may be used to form a bearing system with the manual dial 3 and the sleeve portion 24; the rolling bearing 6 may be formed by simply rotatably fitting the manual dial 3 to the sleeve portion 24 without providing balls, and may be formed as a rotatable bearing system, the purpose of which is to reduce resistance when the manual dial 3 is rotated.
A collar portion is fixed to the outer ring side of the main ring portion 23, and the collar portion is engageable with the guide slide bar to restrict rotation of the slide kit 2. The guide slide bars are arranged outside the resistance wire winding reel 7 at intervals, the guide slide bars are parallel to the axis of the resistance wire winding reel 7, and the sliding sleeve 2 is slidably connected with the guide slide bars and limits the rotation of the sliding sleeve 2. The collar portion may be provided only one, or may be provided in two or more. Specifically, when the number of the collar parts is two, the two collar parts are respectively a first collar part 21 and a second collar part 22, and the guide slide bar also comprises a first slide bar 1 and a second slide bar 4; the first slide bar 1 and the second slide bar 4 are respectively arranged at two opposite sides of the resistance wire winding reel 7 and can be positioned at the upper side and the lower side or at the left side and the right side of the resistance wire winding reel 7; the sliding sleeve 2 is provided with a first sleeve ring part 21 and a second sleeve ring part 22 respectively; the first collar portion 21 is slidably sleeved on the first slide rod 1, and the second collar portion 22 is slidably sleeved on the second slide rod 4.
The manual shifting ring 3 is coaxially sleeved on the sliding sleeve 2, specifically, is arranged outside the sleeve part 24, and an indication mark 31 and anti-skid patterns are arranged on the outer wall of the manual shifting ring 3, so that the manual shifting ring 3 can be controlled to rotate relative to the sliding sleeve 2 in a manual mode.
The metal contact piece 5 is fixedly arranged on the manual shifting ring 3; the contact of the metal contact piece 5 is pressed against the outer wall of the resistance wire bobbin 7 and is in electrical contact with the resistance wire. The manual shifting ring 3 is provided with a contact mounting hole 32; the front end of the metal contact piece 5 protrudes from the front end of the manual dial ring 3 and is used for electrically contacting the resistance wire winding drum 7; the rear ends of the metal contact pieces 5 penetrate into the contact piece mounting holes 32 and extend to the rear end of the manual dial ring 3.
The main ring body part 23 is in a circular shape and is positioned at the rear end of the manual shifting ring 3; a stationary contact portion 25 is provided at the front end face of the main ring body portion 23; a movable contact portion 51 is provided at the rear end of the manual dial 3; the movable contact portion 51 is always in electrical communication with the stationary contact portion 25 when the manual dial 3 is rotated. At least one of the stationary contact portion 25 and the movable contact portion 51 is in the shape of a circular ring or a circular arc; a conductive spring piece is arranged on the static contact part 25 or the movable contact part 51; the static contact portion 25 and the dynamic contact portion 51 are electrically connected through a conductive spring. When the static contact portion 25 and the moving contact portion 51 are annular, the static contact portion 25 and the moving contact portion 51 can be regarded as a single conductive slip ring structure, and electrical communication between the two can be effectively realized by using the electrical connection of the conductive elastic sheets.
When only one sliding sleeve 2 is arranged on the resistor wire winding drum 7, two binding posts can be respectively arranged at two ends of the resistor wire winding drum 7, the two binding posts can be a first binding post and a second binding post, the first binding post and the second binding post can be arranged on the porcelain drum or on a supporting frame at the end part of the porcelain drum, then the metal contact piece 5 is electrically connected with a third binding post, and the third binding post can be arranged on the lantern ring part or on the main ring part 23; when the sliding sleeve 2 slides along the length direction of the resistor wire winding drum 7, the metal contact pieces 5 can be electrically connected with different circles of the resistor wire, and when the manual dial ring 3 rotates relative to the sliding sleeve 2, the metal contact pieces 5 can be controlled to be electrically connected with different circumferential positions of the same circle of the resistor wire.
The structure in this embodiment changes the linear motion mode of the metal contact 5 in the traditional slider, and because the manual dial ring 3 and the sliding sleeve 2 are matched, the metal contact 5 can move linearly and circularly, the two degrees of freedom adjustment of the linear direction and the circumferential direction of the length of the resistance wire of the access circuit of the sliding rheostat are realized, and the length of the resistance wire of the access circuit can be adjusted at will. In addition, because stepless adjustment of the resistance value can be realized, even when the resistance value between adjacent rings is too large, the use of the sliding rheostat is not affected, so that the sliding rheostat in the embodiment can be changed into a high-power adjustable resistor, and the application range of the sliding rheostat is expanded to a high-power application range, for example: as the brake resistor for new energy test, the application field of the slide rheostat is effectively expanded.
Example 2
Based on the structure of embodiment 1, as shown in fig. 5, this embodiment designs a stepless adjustment sliding rheostat, which includes a resistance wire bobbin 7 and more than two sliding kits 2; each sliding sleeve piece 2 is provided with a manual shifting ring 3, a metal contact piece 5 and other parts.
The resistance wire bobbin 7 is cylindrical and has a resistance wire spirally wound; if the resistive wire comprises multiple segments of different wire diameters or/and materials, the different segments are connected in series.
Each sliding sleeve member 2 is sleeved outside the resistance wire winding barrel 7, and the sliding sleeve members 2 can slide back and forth along the axial direction of the resistance wire winding barrel 7 and cannot rotate relative to the resistance wire winding barrel 7; a rolling bearing 6 is arranged between the sliding sleeve 2 and the manual shifting ring 3.
The manual shifting ring 3 is coaxially sleeved on the sliding sleeve 2 and can rotate relative to the sliding sleeve 2; the manual shifting ring 3 is provided with a contact mounting hole 32; the front end of the metal contact piece 5 protrudes from the front end of the manual dial ring 3 and is used for electrically contacting the resistance wire winding drum 7; the rear ends of the metal contacts 5 pass through the contact mounting holes 32 and extend to the rear end of the manual dial 3. The sliding sleeve 2 is provided with a main ring body part 23, and the main ring body part 23 is in a circular shape and is positioned at the rear end of the manual shifting ring 3; a stationary contact portion 25 is provided at the front end face of the main ring body portion 23; a movable contact portion 51 is provided at the rear end of the manual dial 3; the movable contact portion 51 is always in electrical communication with the stationary contact portion 25 when the manual dial 3 is rotated. At least one of the stationary contact portion 25 and the movable contact portion 51 is in the shape of a circular ring or a circular arc; a conductive spring piece is arranged on the static contact part 25 or the movable contact part 51; the static contact portion 25 and the dynamic contact portion 51 are electrically connected through a conductive spring. The sliding sleeve 2 further comprises a sleeve portion 24; the rear end of the sleeve portion 24 is connected to or integral with the main ring portion 23; the manual shifting ring 3 is rotatably sleeved outside the sleeve part 24; the sleeve portion 24 is electrically isolated from the resistance wire bobbin 7.
The metal contact piece 5 is fixed on the manual shifting ring 3; the front end of the metal contact 5 is pressed against the outer wall of the resistance wire bobbin 7 and is in electrical contact with the resistance wire.
And guide sliding rods are arranged at intervals outside the resistor wire winding drums 7, the guide sliding rods are parallel to the axis of the resistor wire winding drums 7, and the sliding sleeve 2 is slidably connected with the guide sliding rods and limits the rotation of the sliding sleeve 2. The guiding slide bar can comprise a first slide bar 1 and a second slide bar 4; the first slide bar 1 and the second slide bar 4 are respectively arranged on two opposite sides of the resistance wire winding drum 7; the sliding sleeve 2 is provided with a first sleeve ring part 21 and a second sleeve ring part 22 respectively; the first collar portion 21 is slidably sleeved on the first slide rod 1, and the second collar portion 22 is slidably sleeved on the second slide rod 4.
An indication mark 31 and anti-skid patterns are arranged on the outer wall of the manual shifting ring 3; the sliding sleeve 2 is provided with graduations.
The metal contact pieces 5 on the two sliding sleeve pieces 2 are electrically connected to the third binding posts on the corresponding sliding sleeve pieces 2, when the two sliding sleeve pieces 2 slide relatively along the length direction of the resistor wire winding drum 7, the metal contact pieces 5 can be electrically connected to different rings of the resistor wire, the part of an access circuit between the two sliding sleeve pieces 2 is changed, and when the manual dial rings 3 on the two sliding sleeve pieces 2 are respectively rotated, the metal contact pieces 5 can be controlled to be electrically connected to different circumferential positions of the corresponding rings of the resistor wire, so that the stepless adjustment of the resistor value is realized.
The above examples are presented for the purpose of illustration only and are not intended to be limiting of the embodiments; it is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present technology.

Claims (10)

1. A stepless regulation slide rheostat, characterized in that: comprising the following steps:
a resistor wire bobbin (7) having a cylindrical shape and a spirally wound resistor wire;
the sliding sleeve (2) is sleeved outside the resistance wire winding reel (7), and the sliding sleeve (2) can slide back and forth along the axial direction of the resistance wire winding reel (7) but cannot rotate relative to the resistance wire winding reel (7);
the manual shifting ring (3) is coaxially sleeved on the sliding sleeve (2) and can rotate relative to the sliding sleeve (2);
a metal contact (5) fixed on the manual dial ring (3); the front end of the metal contact piece (5) is pressed against the outer wall of the resistance wire winding drum (7) and is electrically contacted with the resistance wire.
2. A continuously adjustable slide rheostat according to claim 1, characterised in that: a rolling bearing (6) is arranged between the sliding sleeve (2) and the manual shifting ring (3).
3. A continuously adjustable slide rheostat according to claim 1, characterised in that: and guide sliding rods are arranged at intervals outside the resistor wire winding drums (7), are parallel to the axis of the resistor wire winding drums (7), and are slidably connected with the sliding sleeve (2) and limit the rotation of the sliding sleeve (2).
4. A continuously variable transmission slide rheostat according to claim 3, characterised in that: the guide slide bar comprises a first slide bar (1) and a second slide bar (4); the first sliding rod (1) and the second sliding rod (4) are respectively arranged at two opposite sides of the resistance wire winding reel (7); the sliding sleeve (2) is respectively provided with a first sleeve ring part (21) and a second sleeve ring part (22); the first sleeve ring part (21) is slidably sleeved on the first slide rod (1), and the second sleeve ring part (22) is slidably sleeved on the second slide rod (4).
5. A continuously adjustable slide rheostat according to claim 1, characterised in that: an indication mark (31) and anti-skid patterns are arranged on the outer wall of the manual shifting ring (3); the sliding sleeve (2) is provided with scales.
6. A continuously adjustable slide rheostat according to claim 1, characterised in that: the manual shifting ring (3) is provided with a contact mounting hole (32); the front end of the metal contact piece (5) extends out from the front end of the manual shifting ring (3) and is used for electrically contacting with the resistance wire winding drum (7); the rear ends of the metal contact pieces (5) penetrate through the contact piece mounting holes (32) and extend to the rear ends of the manual shifting rings (3).
7. A continuously variable transmission slide rheostat according to claim 6, characterised in that: the sliding sleeve (2) is provided with a main ring body part (23), and the main ring body part (23) is annular and is positioned at the rear end of the manual dial ring (3); a static contact part (25) is arranged at the front end surface of the main ring body part (23); a movable contact part (51) is arranged at the rear end of the manual dial ring (3); when the manual dial ring (3) rotates, the movable contact part (51) can be always and electrically communicated with the static contact part (25).
8. A continuously variable transmission slide rheostat according to claim 6, characterised in that: at least one of the static contact part (25) and the movable contact part (51) is in a circular ring shape or a circular arc shape; a conductive spring piece is arranged on the static contact part (25) or the movable contact part (51); the static contact part (25) and the movable contact part (51) are electrically communicated through a conductive elastic sheet.
9. A continuously variable transmission slide rheostat according to claim 7, characterised in that: the sliding sleeve (2) also comprises a sleeve part (24); the rear end of the sleeve part (24) is connected with the main ring part (23) or is arranged as a whole; the manual shifting ring (3) is rotatably sleeved outside the sleeve part (24); the sleeve portion (24) is electrically isolated from the resistance wire bobbin (7).
10. A continuously variable transmission slide rheostat according to claim 7, characterised in that: the resistance wire winding reel (7) comprises a circular tube-shaped porcelain tube; the resistor wire is spirally wound on the outer wall of the porcelain barrel along the axis of the porcelain barrel; the side of the resistance wire, which is far away from the porcelain tube, exposes a conductive part; the sliding sleeve (2) is provided with a third power receiving column which is electrically communicated with the static contact part (25).
CN202310473449.9A 2023-04-28 2023-04-28 Stepless regulation slide rheostat Active CN116190028B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310473449.9A CN116190028B (en) 2023-04-28 2023-04-28 Stepless regulation slide rheostat

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Application Number Priority Date Filing Date Title
CN202310473449.9A CN116190028B (en) 2023-04-28 2023-04-28 Stepless regulation slide rheostat

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CN116190028A true CN116190028A (en) 2023-05-30
CN116190028B CN116190028B (en) 2023-06-30

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB237683A (en) * 1924-05-28 1925-08-06 George William Hale Improvements in variable electrical resistance devices
BE670334A (en) * 1964-10-03 1966-01-17
CN205069254U (en) * 2015-11-07 2016-03-02 温州市华中仪表有限公司 Slide rheostat
CN205282206U (en) * 2015-12-30 2016-06-01 李广源 But reading slide rheostat
CN210378645U (en) * 2019-08-31 2020-04-21 温州市华中仪表有限公司 Sliding rheostat
CN213752188U (en) * 2021-01-05 2021-07-20 华东交通大学 Sliding rheostat
CN114334327A (en) * 2021-12-14 2022-04-12 广东福德电子有限公司 High-power rotary adjustable resistor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB237683A (en) * 1924-05-28 1925-08-06 George William Hale Improvements in variable electrical resistance devices
BE670334A (en) * 1964-10-03 1966-01-17
CN205069254U (en) * 2015-11-07 2016-03-02 温州市华中仪表有限公司 Slide rheostat
CN205282206U (en) * 2015-12-30 2016-06-01 李广源 But reading slide rheostat
CN210378645U (en) * 2019-08-31 2020-04-21 温州市华中仪表有限公司 Sliding rheostat
CN213752188U (en) * 2021-01-05 2021-07-20 华东交通大学 Sliding rheostat
CN114334327A (en) * 2021-12-14 2022-04-12 广东福德电子有限公司 High-power rotary adjustable resistor

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