CN111883387A - Temperature control knob switch - Google Patents
Temperature control knob switch Download PDFInfo
- Publication number
- CN111883387A CN111883387A CN202010658227.0A CN202010658227A CN111883387A CN 111883387 A CN111883387 A CN 111883387A CN 202010658227 A CN202010658227 A CN 202010658227A CN 111883387 A CN111883387 A CN 111883387A
- Authority
- CN
- China
- Prior art keywords
- conducting strip
- strip
- live wire
- cam
- swing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/04—Cases; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/08—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/72—Switches in which the opening movement and the closing movement of a contact are effected respectively by heating and cooling or vice versa
Abstract
The invention discloses a temperature control knob switch, which comprises a base, wherein a mounting cavity is arranged in the base, a rotating shaft, a cam, a bimetallic strip, a live wire spring conductive strip, a zero wire spring conductive strip, a live wire pin, a zero wire pin, a ceramic heating strip, a conductive strip, a mounting column, a swing rod and a torsion spring are arranged on the mounting cavity, one end of the torsion spring is abutted against the conductive strip, the other end of the torsion spring is electrically connected with the ceramic heating strip, one end of the ceramic heating strip is electrically connected with the live wire pin, a bulge part is arranged on the torsion spring, the swing rod is arranged at one side of the cam and is staggered with the bulge part, the cam can drive the swing rod to abut against the bulge part so as to drive a first connecting arm to be separated from the conductive strip, the bimetallic strip has better heating effect, the heating strip is disconnected from a circuit when the highest gear works, the heating strip can not be, thereby improving the service life of the product and ensuring that the product is safer when in use.
Description
Technical Field
The invention relates to the technical field of switches, in particular to a temperature control knob switch.
Background
The temperature control knob switch is a temperature switch using a bimetallic strip as a temperature sensing element, when an electric appliance normally works, the bimetallic strip is in a free state, a contact is in a closed state, when the temperature rises to the action temperature value, the bimetallic strip is heated to generate internal stress to act rapidly, the contact is opened, the circuit is cut off, thereby playing a role of thermal protection, in the prior art, the temperature control knob switch comprises a box body, a mounting cavity is arranged in the box body, a rotating shaft, a bimetallic strip and positive and negative pins are arranged in the mounting cavity, a cam is arranged on the rotating shaft, the rotating shaft rotates to drive the bimetallic strip to be connected with the positive pin and the negative pin, so that the circuit is conducted, the bimetallic strip is heated by the heating strip when the circuit is conducted, and the bimetallic strip deforms when the heated temperature reaches an action state, so that the circuit is disconnected, and the temperature is controlled and protected, but at least the following defects exist; when the temperature is adjusted to the highest level, the heating sheet has overhigh long-term working temperature and is easy to damage the internal structure.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides the temperature control knob switch, the bimetallic strip has a better heating effect, and the heating strip is disconnected from the circuit when the highest gear is adjusted to work, so that the heating strip cannot be heated when the highest gear works, the internal structure of the switch can be prevented from being damaged due to overhigh temperature, the service life of a product is prolonged, and the temperature control knob switch is safer to use.
The invention discloses a temperature control knob switch, which comprises a base, wherein a mounting cavity is arranged in the base, a rotating shaft, a cam, a bimetallic strip, a live wire spring conducting strip, a zero line spring conducting strip, a live wire pin and a zero line pin are arranged on the mounting cavity, the zero line spring conducting strip is electrically connected with the zero line pin, the cam is fixedly arranged on the rotating shaft, a ceramic heating strip is arranged at the position of the bimetallic strip in the mounting cavity, the ceramic heating strip is attached to the bimetallic strip, the rotating shaft rotates to drive the cam to rotate, the rotating shaft and the cam rotate to drive the live wire spring conducting strip and the zero line spring conducting strip to swing, and the corresponding live wire pin and the zero line pin are conducted, and the temperature: the installation cavity is internally provided with a conducting strip, an installation column, an oscillating bar and a torsional spring, the rotating shaft can drive a zero line spring conducting strip to be electrically connected with the conducting strip, a torsional spring sleeve is arranged on the installation column, the torsional spring comprises a first connecting arm and a second connecting arm, the first connecting arm of the torsional spring is abutted on the conducting strip, the second connecting arm is electrically connected with one end of a ceramic heating piece, the other end of the ceramic heating piece can be electrically connected with a live wire pin through the live wire spring conducting strip, a bulge part is arranged on the first connecting arm of the torsional spring, the oscillating bar is arranged on one side of the cam and is staggered with the bulge part, when the rotating shaft rotates to a designated position, the cam can drive the oscillating bar to abut against the bulge part, thereby driving the first connecting arm to be separated from the.
Adopt above-mentioned technical scheme, bimetallic strip effect of being heated is better, the erection column can be convenient for the torsional spring to install, the conducting strip plays the connection effect of torsional spring and zero line spring conducting strip, when transferring to highest grade work, the cam rotates to the assigned position and supports the pressure to the pendulum rod, the pendulum rod receives the cam and supports and to swing after pressing, because the dislocation set of pendulum rod and uplift, the pendulum rod can support the side of pressing the uplift in the wobbling and order about the torsional spring and take place deformation, thereby drive first connecting arm and conducting strip separation, first connecting arm and conducting strip after-separating, pottery generate heat piece and zero line pin disconnection, make the pottery generate heat the piece can not heat in the work of highest grade, can prevent that the high temperature from causing the damage to switch inner structure, thereby improve the life of product, make also safer when using.
The invention further provides that: the pendulum rod adopts metal shrapnel to make, and the pot head that cooperates with the uplift on the pendulum rod is equipped with insulating cover, is equipped with the inclined plane on the insulating cover, and the uplift is equipped with the slope limit with inclined plane looks adaptation, is equipped with the extension on the pendulum rod, is equipped with the lug on the cam, and when temperature regulation to the highest grade, the lug supports and presses the extension to drive insulating cover supports and presses the uplift, thereby drives first connecting arm and conducting strip separation, realizes that pottery generates heat piece and zero line pin disconnection.
Adopt the aforesaid to further set up again, the pendulum rod adopts metal shrapnel to make the life that can increase the pendulum rod, insulating cover can prevent that the torsional spring from being connected with the pendulum rod electricity, adopt inclined plane and slope limit cooperation, can support when pressing at uplift and insulating cover, thereby carry out the first connecting arm of inclined plane extrusion drive and separate with the conducting strip, can be more convenient when the first connecting arm of pendulum rod drive separates with the conducting strip, adopt lug and extension cooperation moreover, can be more convenient when cam drive pendulum rod swings.
The invention further provides that: the zero line spring conducting strip is provided with a V-shaped protrusion, the rotating shaft is provided with a V-shaped groove matched with the V-shaped protrusion, the V-shaped protrusion can be inserted into the V-shaped groove, and when the V-shaped groove rotates to be separated from the V-shaped protrusion, the V-shaped protrusion is pressed against the outer end face of the rotating shaft, so that the zero line spring conducting strip is driven to swing and is electrically connected with the conducting strip.
Adopt above-mentioned further setting again, when V type recess rotated along with the pivot, V type arch can break away from and support to press on the outer terminal surface of pivot in the V type recess, and the outer terminal surface of pivot supports with V type arch and presses and can order about zero line spring conducting strip and take place deformation to drive zero line spring conducting strip one end swing to be connected with the conducting strip electricity.
The invention further comprises the following steps: the installation cavity is internally provided with a bimetallic strip installation seat and a live wire spring conducting strip installation seat, the bimetallic strip installation seat and the live wire spring conducting strip installation seat are sequentially arranged from outside to inside, one end of a bimetallic strip is a butt end, the other end of the bimetallic strip is a first connection end, the first connection end is arranged on the bimetallic strip installation seat, one end of the live wire spring conducting strip is a second connection end, the other end of the live wire spring conducting strip is a swing end, the second connection end is connected with the live wire spring conducting strip installation seat and is butted with the butt end, a swing rod is connected on the live wire spring conducting strip installation seat, the swing rod can drive the swing end to swing, and the swing.
Adopt above-mentioned further setting, can be convenient for bimetallic strip and live wire spring conducting strip's installation, live wire spring conducting strip adopts the wane principle moreover, and the second link is contradicted when on bimetallic strip, and the pendulum rod swing can order about the swing end and swing, and the swing end swing can be connected with live wire pin electricity, realizes the intercommunication of circuit.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a base and its internal structure;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the torsion spring of the present invention;
FIG. 5 is a schematic structural view of a ceramic heating sheet according to the present invention;
FIG. 6 is a schematic view of a bimetallic strip mounting base according to the present invention;
FIG. 7 is a schematic view of a pendulum bar structure according to the present invention;
fig. 8 is a view of the neutral spring conductive strip and shaft of the present invention.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in conjunction with the accompanying drawings:
the invention discloses a temperature control knob switch, which comprises a base 1, wherein a mounting cavity 111 is arranged in the base 1, a rotating shaft 2, a cam 3, a bimetallic strip 4, a live wire spring conducting strip 5, a null wire spring conducting strip 6, a live wire pin 7 and a null wire pin 8 are arranged on the mounting cavity 111, the null wire spring conducting strip 6 is electrically connected with the null wire pin 8, the cam 3 is fixedly arranged on the rotating shaft 2, a ceramic heating strip 13 is arranged at the position of the bimetallic strip 4 in the mounting cavity 111, the ceramic heating strip 13 is jointed with the bimetallic strip 4, the rotating shaft 2 can drive the cam 3 to rotate, the rotating shaft 2 and the cam 3 can drive the live wire spring conducting strip 5 and the null wire spring conducting strip 6 to swing so as to realize the conduction of the corresponding live wire pin 7 and the null wire pin 8, the gear of the temperature control knob switch is controlled by the rotation of the rotating shaft, the prior art and the conventional means of technicians, the disconnection of the bimetallic strip thermal deformation driving circuit is the prior art, and is also a conventional means of those skilled in the art, and will not be described in detail herein, in the embodiment of the present invention, a conductive strip 9, a mounting post 10, a swing link 11 and a torsion spring 12 are arranged in the mounting cavity 111, the rotation of the rotating shaft 2 can drive the conductive strip 6 of the null spring to be electrically connected with the conductive strip 9, the torsion spring 12 is sleeved on the mounting post 10, the torsion spring 12 comprises a first connecting arm 1211 and a second connecting arm 1212, the first connecting arm 1211 of the torsion spring 12 abuts against the conductive strip 9, the second connecting arm 1212 is electrically connected with one end of the ceramic heating strip 13, the other end of the ceramic heating strip 13 can be electrically connected with the live wire pin 7 through the live wire spring conductive strip 5, the first connecting arm 1211 of the torsion spring 12 is provided with a bump 1213, the swing link 11 is arranged on one side of the cam 3 and is, the designated position can be the highest gear position of the temperature control switch, the cam 3 can drive the swing rod 11 to press the bulge portion 1213, so as to drive the first connecting arm 1211 to be separated from the conducting strip 9, the ceramic heating sheet 13 is disconnected from the null line pin 8, the bimetallic strip 4 has better heating effect, the mounting column 10 can facilitate the installation of the torsion spring 12, the conducting strip 9 has the connecting function of the torsion spring 12 and the null line spring conducting strip 6, when the highest gear is adjusted to work, the cam 3 rotates to the designated position to press the swing rod 11, the swing rod 11 swings after being pressed by the cam 3, due to the staggered arrangement of the swing rod 11 and the bulge portion 1213, the side edge of the bulge portion 1213 can be pressed by the swing rod 11 to drive the torsion spring 12 to deform, so as to drive the first connecting arm 1211 to be separated from the conducting strip 9, and after the first connecting arm 1211 is separated from the first connecting arm 9, the ceramic heating sheet 13 is disconnected from the null line pin, the ceramic heating sheet 13 can not be heated when the highest gear works, the internal structure of the switch can be prevented from being damaged due to overhigh temperature, the service life of the product is prolonged, and the use is safer.
The oscillating bar 11 is made of a metal elastic sheet, one end of the oscillating bar 11, which is matched with the bulge portion 1213, is sleeved with an insulating sleeve 1111, the insulating sleeve 1111 is provided with an inclined surface 1112, the bulge portion 1213 is provided with an inclined edge 1214 matched with the inclined surface 1112, the oscillating bar 11 is provided with an extension 1113, the cam 3 is provided with a lug 311, when the temperature is regulated to the highest gear, the lug 311 is pressed against the extension 1113, so that the insulating sleeve 1111 is driven to be pressed against the bulge portion 1213, the first connecting arm 1211 is driven to be separated from the conducting strip 9, the ceramic heating strip 13 is disconnected from the neutral wire pin 8, the oscillating bar 11 is made of the metal elastic sheet, the service life of the oscillating bar 11 can be prolonged, the insulating sleeve 1111 can prevent the torsion spring 12 from being electrically connected with the oscillating bar 11, the inclined surface 1112 and the inclined edge 1214 are matched, so that the inclined surface extrusion can be carried out when the bulge, it is more convenient when the swing link 11 drives the first connecting arm 1211 to separate from the conductive plate 9, and it is more convenient when the cam 3 drives the swing link 11 to swing by adopting the protrusion 311 and the extension 1113 to cooperate.
The zero line spring conducting strip 6 is provided with a V-shaped protrusion 611, the rotating shaft 2 is provided with a V-shaped groove 211 matched with the V-shaped protrusion 611, the V-shaped protrusion 611 can be inserted into the V-shaped groove 211, when the V-shaped groove 211 rotates to be separated from the V-shaped protrusion 611, the V-shaped protrusion 611 is pressed against the outer end face of the rotating shaft 2, so that the zero line spring conducting strip 6 is driven to swing and is electrically connected with the conducting strip 9, when the V-shaped groove 211 rotates along with the rotating shaft 2, the V-shaped protrusion 611 can be separated from the V-shaped groove 211 and is pressed against the outer end face of the rotating shaft 2, the outer end face of the rotating shaft 2 is pressed against the V-shaped protrusion 611, so that the zero line spring conducting strip 6 is driven to deform, and therefore one end of the zero line.
The installation cavity 111 is internally provided with a bimetallic strip installation seat 14 and a live wire spring conducting strip installation seat 15, the bimetallic strip installation seat 14 and the live wire spring conducting strip installation seat 15 are sequentially arranged from outside to inside, one end of a bimetallic strip 4 is an abutting end 411, the other end of the bimetallic strip is a first connecting end 412, the first connecting end 412 is arranged on the bimetallic strip installation seat 14, one end of a live wire spring conducting strip 5 is a second connecting end 511, the other end of the live wire spring conducting strip is a swinging end 512, the second connecting end 511 is connected with the live wire spring conducting strip installation seat 15 and is abutted against the abutting end 411, a swinging rod 11 is connected on the live wire spring conducting strip installation seat 15, the swinging rod 11 can swing to drive the swinging end 512 to swing so as to realize that the swinging end 512 is electrically connected with a live wire pin 7, the installation of the bimetallic strip 4 and the live wire spring conducting strip 5 can be convenient, the live, the swing of the swing rod 11 can drive the swing end 512 to swing, and the swing end 512 can swing to be electrically connected with the live wire pin 7, so that the circuit is communicated.
Claims (4)
1. The utility model provides a control by temperature change knob switch, which comprises a base, be equipped with the installation cavity in the base, be equipped with the pivot on the installation cavity, the cam, bimetallic strip, live wire spring conducting strip, zero line spring conducting strip, live wire pin and zero line pin, zero line spring conducting strip is connected with zero line pin electricity, the cam is fixed to be set up in the pivot, it is equipped with the pottery piece that generates heat to lie in bimetallic strip position in the installation cavity, pottery piece and bimetallic strip laminating mutually that generates heat, the pivot is rotated and is driven the cam and rotate, pivot and cam rotate and can drive live wire spring conducting strip and zero line spring conducting strip swing, realize switching on of corresponding live wire pin and zero line pin, a serial communication: the installation cavity is internally provided with a conducting strip, an installation column, an oscillating bar and a torsional spring, the rotating shaft can drive a zero line spring conducting strip to be electrically connected with the conducting strip, a torsional spring sleeve is arranged on the installation column, the torsional spring comprises a first connecting arm and a second connecting arm, the first connecting arm of the torsional spring is abutted on the conducting strip, the second connecting arm is electrically connected with one end of a ceramic heating piece, the other end of the ceramic heating piece can be electrically connected with a live wire pin through the live wire spring conducting strip, a bulge part is arranged on the first connecting arm of the torsional spring, the oscillating bar is arranged on one side of the cam and is staggered with the bulge part, when the rotating shaft rotates to a designated position, the cam can drive the oscillating bar to abut against the bulge part, thereby driving the first connecting arm to be separated from the.
2. The temperature-controlled rotary switch according to claim 1, wherein: the pendulum rod adopts metal shrapnel to make, and the pot head that cooperates with the uplift on the pendulum rod is equipped with insulating cover, is equipped with the inclined plane on the insulating cover, and the uplift is equipped with the slope limit with inclined plane looks adaptation, is equipped with the extension on the pendulum rod, is equipped with the lug on the cam, and when temperature regulation to the highest grade, the lug supports and presses the extension to drive insulating cover supports and presses the uplift, thereby drives first connecting arm and conducting strip separation, realizes that pottery generates heat piece and zero line pin disconnection.
3. A temperature-controlled rotary switch according to claim 1 or 2, wherein: the zero line spring conducting strip is provided with a V-shaped protrusion, the rotating shaft is provided with a V-shaped groove matched with the V-shaped protrusion, the V-shaped protrusion can be inserted into the V-shaped groove, and when the V-shaped groove rotates to be separated from the V-shaped protrusion, the V-shaped protrusion is pressed against the outer end face of the rotating shaft, so that the zero line spring conducting strip is driven to swing and is electrically connected with the conducting strip.
4. The temperature-controlled rotary switch according to claim 3, wherein: the installation cavity is internally provided with a bimetallic strip installation seat and a live wire spring conducting strip installation seat, the bimetallic strip installation seat and the live wire spring conducting strip installation seat are sequentially arranged from outside to inside, one end of a bimetallic strip is a butt end, the other end of the bimetallic strip is a first connection end, the first connection end is arranged on the bimetallic strip installation seat, one end of the live wire spring conducting strip is a second connection end, the other end of the live wire spring conducting strip is a swing end, the second connection end is connected with the live wire spring conducting strip installation seat and is butted with the butt end, a swing rod is connected on the live wire spring conducting strip installation seat, the swing rod can drive the swing end to swing, and the swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658227.0A CN111883387A (en) | 2020-07-09 | 2020-07-09 | Temperature control knob switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658227.0A CN111883387A (en) | 2020-07-09 | 2020-07-09 | Temperature control knob switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111883387A true CN111883387A (en) | 2020-11-03 |
Family
ID=73150439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010658227.0A Pending CN111883387A (en) | 2020-07-09 | 2020-07-09 | Temperature control knob switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111883387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435885A (en) * | 2020-12-14 | 2021-03-02 | 温州长江汽车电子有限公司 | Knob switch for vehicle |
-
2020
- 2020-07-09 CN CN202010658227.0A patent/CN111883387A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435885A (en) * | 2020-12-14 | 2021-03-02 | 温州长江汽车电子有限公司 | Knob switch for vehicle |
| CN112435885B (en) * | 2020-12-14 | 2024-02-27 | 浙江长江汽车电子有限公司 | Knob switch for vehicle |
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