CN103559969B - Change over resistor - Google Patents

Change over resistor Download PDF

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Publication number
CN103559969B
CN103559969B CN201310542286.1A CN201310542286A CN103559969B CN 103559969 B CN103559969 B CN 103559969B CN 201310542286 A CN201310542286 A CN 201310542286A CN 103559969 B CN103559969 B CN 103559969B
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China
Prior art keywords
resistor
guide rod
resistive element
metal contact
hairspring
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Expired - Fee Related
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CN201310542286.1A
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Chinese (zh)
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CN103559969A (en
Inventor
王爱元
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Shanghai Dianji University
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Shanghai Dianji University
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Abstract

The invention provides one and change over resistor, including: rotary handle, resistive element, sliding metal contact, and guide rod, the axle center of described rotary handle is connected with the first end of described guide rod, and the second end of described guide rod connects described sliding metal contact, electrical contact between described sliding metal contact and described resistive element.Described resistor also includes time-varying elastance body, and it changes over the position of described sliding metal contact.The technical program uses hairspring as flexible member on the basis of variable resistance, and the output resistance enabling resistor is continuous and the most adjustable, fully meets the needs of the steady safe operation of the particular place such as motor starting, speed governing.

Description

Change over resistor
Technical field
The present invention relates to electric field, be applied under motor starting and speed governing, severe environmental conditions make Electrical equipment etc. require the time dependent field of institute's connecting resistance.
Background technology
The resistance value of variable resistance can regulate, by changing the length accessing circuit part resistive conductor Change resistance.Circuit accesses the dividing potential drop of components and parts in the size of variable resistance adjustable current, circuit. The temperature of electric iron, bright dark, the volume of audio amplifier of light, start motor or control its rotating speed etc. and all exist Circuit seals in variable resistance and realizes regulation.
Variable resistance is rotated by a resistive element and one or sliding system forms.On exposed resistive element, Pressed against one or two and can move hard contact, contact position determines the resistance between resistive element either end and contact. Resistive element has two fixing ends, manually regulation rotating shaft or sliding handles, changes movable contact position on resistive element Put, then change the resistance value between motion contact and any one fixing end, thus change voltage and electric current Size.
The resistance of existing variable resistance needs to regulate manually, and regulation not uniformly and is wasted time and energy, Easily disturbed by human factor.And need the resistance of variable resistance in the places such as speed governing that start of motor Regulate linearly over time, to guarantee to start the steady of speed governing.
Additionally, during the starting of motor, rotating speed is low, electromotive force is low, for the electric current in limiting motor winding Need to connect variable resistance in winding loop.Along with the rising of rotating speed, electromotive force rises, and needs to reduce The resistance value of variable resistance.Thus require the resistance value of the variable resistance that winding loop connected at any time Linearly reduces, to realize the start protection of motor.
Thus, industry needs to carry out in time the resistor of linear change.
Summary of the invention
It is contemplated that realize the smooth start speed governing of motor, the electrical equipment used under severe environmental conditions Regulation, and guarantee the safe and reliable work of motor and other electrical equipment.
To achieve these goals, the invention provides a kind of time dependent resistor, including: rotate Handle, resistive element, sliding metal contact, and guide rod, the of the axle center of described rotary handle and described guide rod One end is connected, and the second end of described guide rod connects described sliding metal contact, described sliding metal contact and institute State electrical contact between resistive element.Described resistor also includes time-varying elastance body, and it changes over described cunning The position of dynamic hard contact.
In some embodiments, described time-varying elastance body is hairspring assembly, including: hairspring, it is screw type Wire;Interior stake, it is fixed on shaft core position, and keeps fixing relative to described resistive element;And stud, It is connected to the second end of described guide rod, and can leave along described hairspring or near described interior stake.
In some embodiments, described resistive element is arc-shaped homogeneous resistive element.
In some embodiments, described rotary handle makes described sliding metal contact along described by described guide rod Arc-shaped resistive element and described stud drive described hairspring to move to select location from initial position to reach respectively After becoming the first output resistance, and described movement, described time-varying elastance body produce the moment of reaction so that Obtain described stud and be back to described initial position, thus drive described hard contact to be back to initially by guide rod Position, the resistance of the most described first output resistance changes linearly over time.
In some embodiments, according to the installation direction of described hairspring, described initial resistivity value can be made in time Increase or reduce.
In some embodiments, described sliding metal contact is connected with wire and makes the other end of described wire As the first terminals of described resistor, and wherein one end of described arc-shaped resistive element is as can power transformation Second terminals of resistance device.
The technical program uses hairspring as flexible member on the basis of variable resistance, makes the output of resistor Resistance can be continuous and the most adjustable, fully meets the flat of the particular place such as motor starting, speed governing The needs of steady safe operation.
Accompanying drawing explanation
In conjunction with accompanying drawing, by being detailed below, the above-mentioned and other feature of the present invention can be more clearly understood that And advantage, wherein:
Fig. 1 is the top view changing over resistor according to the embodiment of the present invention;
Fig. 2 is the local connection diagram changing over resistor shown in Fig. 1.
Detailed description of the invention
See the accompanying drawing of the embodiment of the present invention, the present invention is described in more detail.But, the present invention can To realize in many different forms, and should not be construed as and limited by this embodiment proposed.On the contrary, carry Going out these embodiments is to reach fully and complete disclosure, and makes those skilled in the art complete Understand the scope of the present invention.In these accompanying drawings, for clarity sake, may to the size of subregion and relatively Part dimension is exaggerated or deforms.
Should be understood that the part of description of the invention/be illustrated as individual unit may be present in two or more Physically independent but cooperation realizes the entity of the function of described/diagram.Additionally, describe/be illustrated as two or two Individual above physically separate part can be integrated into a single the most physically entity to carry out described/diagram Function.
Description describes time dependent resistor according to embodiments of the present invention in detail.
As illustrated in fig. 1 and 2, resistor according to embodiments of the present invention includes rotary handle, resistive element, slides Dynamic hard contact, and guide rod.The axle center of described rotary handle is connected with the first end of described guide rod, described in lead Second end of bar connects described sliding metal contact, between described sliding metal contact and described resistive element electrically Contact.The structure of this part is similar with the structure of existing variable resistance, does not repeats them here.
Additionally, the resistor that changes over according to embodiments of the present invention also includes time-varying elastance body, it is at any time Between change the position of described sliding metal contact.In the present embodiment, described time-varying elastance body is hairspring assembly. Described hairspring assembly includes hairspring, and it is the wire of screw type.Screw type flexibility wiry is not subject to Limit, but can select as required.
Additionally, described hairspring assembly also includes interior stake and stud.Described interior stake is fixedly installed, and relative to Described resistive element keeps fixing.Described stud is connected to the second end of described guide rod, and can be along described hairspring Leave or near described interior stake.
Owing to embodiments of the invention use hairspring assembly as time-varying elastance body, the most described resistive element is circle Arcuation resistive element, so that described sliding metal contact can move along described arcuation resistive element.
By said structure, when making described rotary handle rotate, described cunning can be made by described guide rod Dynamic hard contact moves to select location along described arc-shaped resistive element from initial position, and make described outside Stake is moved to select location from initial position respectively along described hairspring, thus reaches the first output resistance.Change Yan Zhi, described sliding metal contact and described stud form linkage, i.e. can be by the rotation of described rotary handle Turn, change described sliding metal contact and the position of described stud simultaneously.
Additionally, after described movement, described time-varying elastance body produces the moment of reaction so that described stud returns It is back to described initial position and makes described hard contact be back to initial position, thus change over described First output resistance.That is, linkage, described time-varying are formed due to described sliding metal contact and described stud Elastomer produces the moment of reaction so that described stud is back to described initial position and makes described metal touch Point is back to initial position.
According to the installation direction of described hairspring, described initial resistivity value can be made to increase over or reduce.As Shown in Fig. 1 and 2 of the present embodiment, when rotary handle, guide rod drives hairspring stud and sliding metal contact to turn To correct position, the resistance that resistor output is certain, rotary handle, guide rod and sliding metal contact exist subsequently Initial position, the during this period output resistance of resistor is slowly returned under the moment of reaction effect that hairspring produces Reduce linearly over time.But, if reversely installing described hairspring assembly, described stud and described both can be made Sliding metal contact reversely moves, so that the output resistance of resistor increases linearly over time.
Described sliding metal contact is connected with wire and makes the other end of described wire as described resistor The first terminals, and wherein one end of described arc-shaped resistive element is as the second wiring of variable resistance End.
The technical program uses hairspring as flexible member on the basis of variable resistance, makes the output of resistor Resistance can be continuous and the most adjustable, fully meets the flat of the particular place such as motor starting, speed governing The needs of steady safe operation.
Those skilled in the art should be understood that the present invention can so that other concrete forms many realize not Depart from the spirit or scope of the present invention.Although already having described embodiments of the invention, it should be understood that the present invention is not These embodiments should be limited to, those skilled in the art can define such as appended claims this Make within bright spirit and scope and changing and modifications.

Claims (6)

1. one kind changes over resistor, it is characterised in that including:
Rotary handle, resistive element, sliding metal contact, guide rod and connection wire, time-varying elastance body, the axle center of described rotary handle is connected with the first end of described guide rod and described time-varying elastance body, makes guide rod can rotate with rotary handle;Second end of described guide rod connects described sliding metal contact and the second end of time-varying elastance body;Electrical contact between described sliding metal contact and described resistive element;Second end of described time-varying elastance body its drive guide rod to rotate in time, change the position of described sliding metal contact with this;Described time-varying elastance body is the hairspring of spirality type.
2., according to the resistor described in right 1, it is characterised in that described hairspring is wire, and in addition to described hairspring, described time-varying elastance body also includes:
Interior stake, it is fixed on axle center, and keeps fixing relative to described resistive element position;
Stud, it is connected to the second end of described guide rod, and can leave along described hairspring or near described interior stake;
Interior stake and stud connect two end points of hairspring respectively.
3. according to the resistor described in right 2, it is characterised in that described resistive element is arc-shaped homogeneous resistive element.
4. according to the resistor described in right 3, it is characterized in that, described rotary handle makes described sliding metal contact move to select location from initial position to reach the first output resistance respectively along described arc-shaped resistive element and described stud along described hairspring by described guide rod, and after described movement, the described time-varying elastance body generation moment of reaction is so that described stud is back to described initial position and makes described hard contact be back to initial position, thus changes over described first output resistance.
5., according to the resistor described in right 4, it is characterised in that according to the installation direction of described hairspring, described initial resistivity value can be made to increase over or reduce.
6. according to the resistor described in right 1, it is characterized in that, described sliding metal contact is connected with wire and makes the other end first terminals as described resistor of described wire, and wherein one end of described arc-shaped resistive element is as the second terminals of variable resistance.
CN201310542286.1A 2013-11-05 2013-11-05 Change over resistor Expired - Fee Related CN103559969B (en)

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CN103559969B true CN103559969B (en) 2016-09-07

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CN104637660A (en) * 2015-02-06 2015-05-20 四川蓝讯宝迩电子科技有限公司 Current transformer with transformation ratio capable of being adjusted through rotation
CN105140092B (en) * 2015-09-18 2017-08-25 中广核达胜加速器技术有限公司 Poly- self-checking device at the beginning of a kind of line
CN105897096A (en) * 2016-06-14 2016-08-24 上海电机学院 Automatic adjustment reactor for high-voltage motor starting and adjustment method of automatic adjustment reactor
CN106057388B (en) * 2016-07-26 2017-11-10 黄河科技学院 A kind of metal plate type high power varying resistance
CN106531381B (en) * 2016-11-07 2019-07-19 珠海格力电器股份有限公司 motor and control method thereof
KR102443337B1 (en) * 2017-05-12 2022-09-19 현대자동차주식회사 Battery module for vehicle
CN108120547B (en) * 2017-12-21 2019-10-25 合肥工业大学 A kind of vortex surface pressure apparatus for measuring distribution

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Publication number Priority date Publication date Assignee Title
CN2085111U (en) * 1990-08-08 1991-09-18 周家印 Timely automatic voltage regulator
CN1173238A (en) * 1995-11-29 1998-02-11 阿拉教沙坎培仁茨帕塞沃斯股份有限公司 Improved potentiometer
CN201048363Y (en) * 2007-01-10 2008-04-16 王志斌 Timing speed-regulating switch
CN201181678Y (en) * 2007-12-19 2009-01-14 赵东信 Miniature timer
CN101518468A (en) * 2008-02-29 2009-09-02 药物代谢动力公司 Artificial tooth medicating apparatus for controlling, regulating, and sensing and releasing medical agents into the body
CN101564266A (en) * 2009-06-01 2009-10-28 单正国 Automatic electric cooker
CN102230640A (en) * 2011-06-11 2011-11-02 廖智 Electric stove capable of regulating voltage and shifting gear at regular time

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2085111U (en) * 1990-08-08 1991-09-18 周家印 Timely automatic voltage regulator
CN1173238A (en) * 1995-11-29 1998-02-11 阿拉教沙坎培仁茨帕塞沃斯股份有限公司 Improved potentiometer
CN201048363Y (en) * 2007-01-10 2008-04-16 王志斌 Timing speed-regulating switch
CN201181678Y (en) * 2007-12-19 2009-01-14 赵东信 Miniature timer
CN101518468A (en) * 2008-02-29 2009-09-02 药物代谢动力公司 Artificial tooth medicating apparatus for controlling, regulating, and sensing and releasing medical agents into the body
CN101564266A (en) * 2009-06-01 2009-10-28 单正国 Automatic electric cooker
CN102230640A (en) * 2011-06-11 2011-11-02 廖智 Electric stove capable of regulating voltage and shifting gear at regular time

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