CN219303557U - Thermal protector capable of adjusting reset temperature - Google Patents
Thermal protector capable of adjusting reset temperature Download PDFInfo
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- CN219303557U CN219303557U CN202320359061.1U CN202320359061U CN219303557U CN 219303557 U CN219303557 U CN 219303557U CN 202320359061 U CN202320359061 U CN 202320359061U CN 219303557 U CN219303557 U CN 219303557U
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- movable contact
- screw
- metal support
- thermal protector
- reset temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a thermal protector capable of adjusting reset temperature, which aims to limit the distance of a movable contact piece away from a static contact piece through a first screw so as to adjust the reset temperature, and adopts the technical scheme that: the utility model provides an adjustable reset temperature's thermal protector, includes the body, has arranged metal support, quiet contact and bimetallic strip in proper order in the body, is equipped with the movable contact between quiet contact and the metal support, and the movable contact is the sunken arc form towards the metal support, and the middle part and the metal support fixed connection of movable contact, the movable contact include be located the first tip and the second tip of sunken direction both sides, be equipped with the movable contact on the first tip; one end of the bimetallic strip is fixedly connected with the body, and the other end of the bimetallic strip is used for contacting with the second end; the screw thread connection has first screw on the metal support, and the end of first screw is located between metal support and the movable contact piece, rotates the interval of the end of first screw and movable contact piece, belongs to control by temperature change technical field.
Description
Technical Field
The utility model belongs to the technical field of temperature control, and particularly relates to a thermal protector capable of adjusting reset temperature.
Background
The thermal protector is also called a temperature control switch, and is a temperature controller using a bimetallic strip as a temperature sensing element, and can control a circuit to be opened or closed after reaching the working temperature.
CN208637366U discloses a constant temperature type thermal protector, which comprises a shell, a fixed seat, a static contact and a movable contact; the shell is provided with a containing cavity with a downward opening; the fixing seat is arranged in the opening of the accommodating cavity; the static contact and the movable contact are both fixed on the fixed seat, one end of the static contact extends into the accommodating cavity and is provided with a static contact, the inner wall of the shell is provided with a calibration point, the calibration point is propped against the back surface of the static contact, the other end of the static contact extends out of the accommodating cavity and is connected with a first wire, one end of the movable contact extends into the accommodating cavity and is provided with a movable contact, the contact point is positioned on the outer side of the front surface of the static contact, and the other end of the movable contact extends out of the accommodating cavity and is connected with a second wire;
the thermal protector separates the movable contact from the fixed contact through the deformation of the movable contact, and limits the deformation degree of the movable contact by using the calibration point, and limits the distance of the movable contact away from the fixed contact under the condition that the deformation of the movable contact is enough to disconnect a circuit, so that the reset temperature is not required to be too low, the difference value between the action temperature and the reset temperature is reduced, and the circuit can resume operation in a shorter time;
however, the calibration point is a fixed structure, so that the reset temperature of each thermal protector is fixed when leaving the factory, and the required reset temperature is different according to different use scenes for users, so that a thermal protector capable of adjusting the reset temperature is needed.
Disclosure of Invention
The utility model mainly aims to provide a thermal protector with adjustable reset temperature, which aims to limit the distance between a movable contact piece and a static contact piece through a first screw so as to adjust the reset temperature.
According to a first aspect of the present utility model, there is provided a thermal protector capable of adjusting reset temperature, including a body, in which a metal support, a stationary contact and a bimetal are sequentially disposed, a movable contact is disposed between the stationary contact and the metal support, the movable contact is in an arc shape recessed toward the metal support, a middle portion of the movable contact is fixedly connected with the metal support, the movable contact includes a first end portion and a second end portion located at two sides of a recess direction, and a movable contact is disposed on the first end portion;
one end of the bimetallic strip is fixedly connected with the body, and the other end of the bimetallic strip is used for contacting with the second end part;
the metal support is connected with a first screw in a threaded mode, the tail end of the first screw is located between the metal support and the movable contact piece, and the distance between the tail end of the first screw and the movable contact piece can be changed by rotating the first screw.
In the above thermal protector with adjustable reset temperature, the first screw is used for contacting with the second end of the movable contact.
In the above thermal protector with adjustable reset temperature, the body is provided with a first through hole corresponding to the first screw, and a first rubber plug is arranged in the first through hole.
In the above thermal protector with adjustable reset temperature, one end of the bimetal strip, which is used for contacting with the second end, is connected with a second screw in a threaded manner, and the tail end of the second screw is used for contacting with the second end.
In the above thermal protector with adjustable reset temperature, an annular protrusion is disposed on a surface of the bimetal opposite to the movable contact, the annular protrusion surrounds the periphery of the second screw, and an inner diameter of the annular protrusion is larger than an outer diameter of a head of the second screw.
In the thermal protector with the adjustable reset temperature, the height of the annular protrusion is 1-5mm.
In the above thermal protector with adjustable reset temperature, the inner wall of the annular protrusion is provided with an internal thread.
In the above thermal protector with adjustable reset temperature, the body is provided with a second through hole corresponding to the annular protrusion, and the second through hole is provided with a second rubber plug.
In the above-mentioned thermal protector with adjustable reset temperature, the body comprises a shell with an opening at one side, an insulator is fixed at the opening of the shell, the metal support, the static contact and the bimetallic strip are respectively fixed on the insulator, the bimetallic strip is positioned in the shell, and the metal support and the static contact are all extended from the interior of the shell to the exterior of the shell.
One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:
according to the utility model, the first screw is arranged on the body, when the bimetallic strip presses the movable contact strip, after the movable contact strip leaves the static contact strip, the movable contact strip does not move until touching the tail end of the first screw, so that the first screw can limit the distance of the movable contact strip away from the static contact strip, the distance between the tail end of the first screw and the movable contact strip can be changed by rotating the first screw, the distance of the movable contact strip away from the static contact strip is changed, the deformation degree of the bimetallic strip is changed, the reset temperature is changed, and a user can adjust the reset temperature according to actual requirements.
Drawings
The utility model is further described below with reference to the drawings and examples;
fig. 1 is a schematic structural view of a first embodiment of the present utility model.
Wherein reference numerals for the respective figures:
1. a body; 11. a housing; 12. an insulator; 13. a first through hole; 14. a first rubber plug; 15. a second through hole; 16. a second rubber plug; 2. a metal bracket; 3. a stationary contact; 4. bimetallic strips; 41. an annular protrusion; 5. a movable contact; 6. a movable contact; 7. a first screw; 8. and a second screw.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.
Referring to fig. 1, in one embodiment of the present utility model, a thermal protector capable of adjusting reset temperature includes a body 1, a metal support 2, a stationary contact 3 and a bimetal 4 are sequentially disposed in the body 1, a movable contact 5 is disposed between the stationary contact 3 and the metal support 2, the body 1 includes a housing 11 with an opening at one side, an insulator 12 is fixed at the opening of the housing 11, the metal support 2, the stationary contact 3 and the bimetal 4 are respectively fixed on the insulator 12, the bimetal 4 is located inside the housing 11, and the metal support 2 and the stationary contact 3 extend from the inside of the housing 11 to the outside of the housing 11; the metal bracket 2 and the static contact 3 are used for being connected with peripheral wires;
the movable contact 5 is in an arc shape recessed towards the metal bracket 2, the middle part of the movable contact 5 is fixedly connected with the metal bracket 2, the movable contact 5 comprises a first end part and a second end part which are positioned at two sides of the recessed direction, and the first end part is provided with a movable contact 6;
one end of the bimetallic strip 4 is fixedly connected with the body 1, and the other end of the bimetallic strip 4 is used for contacting with the second end;
the metal bracket 2 is connected with a first screw 7 in a threaded manner, the tail end of the first screw 7 is positioned between the metal bracket 2 and the movable contact 5, and the distance between the tail end of the first screw 7 and the movable contact 5 can be changed by rotating the first screw 7.
When the double-metal contact strip is used, the double-metal strip 4 is not deformed at normal temperature, and the movable contact 6 on the movable contact strip 5 is contacted with the static contact strip 3, so that a circuit is connected; after the working temperature is reached, the bimetallic strip 4 deforms, the bimetallic strip 4 pushes the movable contact strip 5, as the middle part of the movable contact strip 5 is fixed with the metal bracket 2, the movable contact strip 5 expands after the second end part is pressed, so that the first end part moves synchronously, the movable contact 6 is separated from the fixed contact strip 3, the circuit is disconnected, the bimetallic strip 4 contacts the movable contact strip 5 until the movable contact strip 5 contacts the tail end of the first screw 7, the movable contact strip 5 does not move any more, and the bimetallic strip 4 stops deforming; after reaching the reset temperature, the bimetallic strip 4 starts to recover the shape, and the movable contact strip 5 gradually rebounds and contracts by virtue of elasticity until the movable contact 6 on the first end part is contacted with the static contact strip 3;
by rotating the first screw 7, the distance between the tail end of the first screw 7 and the movable contact 5 can be changed, so that the distance between the movable contact 5 and the static contact 3 is changed, the deformation degree of the bimetallic strip 4 is changed, the reset temperature is changed, and a user can adjust the reset temperature according to actual requirements.
In the present embodiment, the first screw 7 is used to contact with the second end of the movable contact 5, avoiding interference with the movable contact 6.
In the embodiment, a first through hole 13 corresponding to the first screw 7 is arranged on the body 1, and a first rubber plug 14 is arranged in the first through hole 13; the user can rotate the first screw 7 through the first through hole 13, and is convenient when adjusting the reset temperature, can seal the first through hole 13 through the first rubber plug 14 after adjusting.
In the present embodiment, the bimetal 4 is screwed with the second screw 8 at one end for contacting the second end, and the tip of the second screw 8 is used for contacting the second end;
because the second screw 8 is in threaded connection with the bimetallic strip 4, the distance between the tail end of the second screw 8 and the movable contact strip 5 can be adjusted by rotating the second screw 8, and the bimetallic strip 4 reduces the deformation degree or increases the deformation degree to enable the second screw 8 to be in contact with the movable contact strip 5, so that the working temperature is shortened or increased, the working temperature of the thermal protector is adjustable, and the thermal protector is convenient to use in different scenes.
When in adjustment, the second screw 8 is firstly positioned at the highest point far away from the movable contact 5, and after reaching the preset temperature, the second screw 8 is rotated, so that the second screw 8 is propped against the movable contact 5, and then the movable contact 6 is separated from the static contact 3, thereby completing the setting of the working temperature; in order to avoid electric shock, the first screw 7 and the second screw 8 can be made of plastic materials.
In this embodiment, an annular protrusion 41 is disposed on a surface of the bimetal 4 facing away from the movable contact 5, the annular protrusion 41 surrounds the periphery of the second screw 8, and the inner diameter of the annular protrusion 41 is larger than the outer diameter of the head of the second screw 8.
After the working temperature is regulated, the second screw 8 is fixed by injecting glue, so that the influence of the looseness of the second screw 8 on the working temperature in the using process is avoided; therefore, an annular protrusion 41 is arranged on one surface of the bimetallic strip 4, which is opposite to the movable contact strip 5, the annular protrusion 41 surrounds the periphery of the second screw 8, the inner diameter of the annular protrusion 41 is larger than the outer diameter of the head of the second screw 8, the annular protrusion 41 does not influence the rotation of the second screw 8, glue is injected between the annular protrusion 41 and the second screw 8, and the second screw 8 can be fixed after the glue is solidified.
In order to ensure that the glue can adhere to the second screw 8, the annular protrusion 41 has a height of 1-5mm, a sufficient amount of glue is poured between the annular protrusion 41 and the second screw 8, without affecting the deformation of the bimetal 4;
preferably, the height of the annular protrusion 41 is 1.5mm.
In this embodiment, the inner wall of the annular protrusion 41 is provided with an internal thread, and the glue can be poured into the thread gap, so that the contact area between the glue and the inner wall of the annular protrusion 41 is increased, and the glue can be firmly adhered to the annular protrusion 41.
In this embodiment, the body 1 is provided with a second through hole 15 corresponding to the annular protrusion 41, a user can inject glue into the annular protrusion 41 through the second through hole 15, the second through hole 15 is provided with a second rubber plug 16, and after the glue injection is completed, the second rubber plug 16 can seal the second through hole 15, so that water is prevented from entering the body 1 through the second through hole 15.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a thermal protector of adjustable reset temperature, includes the body, its characterized in that, metal support, quiet contact and bimetallic strip have been arranged in proper order in the body, be equipped with the movable contact between quiet contact and the metal support, the movable contact is the sunken arc form towards the metal support, the middle part and the metal support fixed connection of movable contact, the movable contact includes the first tip and the second tip that are located sunken direction both sides, be equipped with the movable contact on the first tip;
one end of the bimetallic strip is fixedly connected with the body, and the other end of the bimetallic strip is used for contacting with the second end part;
the metal support is connected with a first screw in a threaded mode, the tail end of the first screw is located between the metal support and the movable contact piece, and the distance between the tail end of the first screw and the movable contact piece can be changed by rotating the first screw.
2. The adjustable reset temperature thermal protector of claim 1 wherein the first screw is adapted to contact the second end of the movable contact.
3. The thermal protector with adjustable reset temperature according to claim 1, wherein the body is provided with a first through hole corresponding to the first screw, and a first rubber plug is arranged in the first through hole.
4. The adjustable reset temperature thermal protector of claim 1 wherein the end of the bi-metallic strip that is adapted to contact the second end is threadably connected with a second screw, the end of the second screw being adapted to contact the second end.
5. The thermal protector with adjustable reset temperature according to claim 4, wherein an annular protrusion is arranged on one surface of the bimetallic strip, which faces away from the movable contact strip, the annular protrusion surrounds the periphery of the second screw, and the inner diameter of the annular protrusion is larger than the outer diameter of the head of the second screw.
6. The adjustable reset temperature thermal protector of claim 5 wherein the annular protrusion has a height of 1-5mm.
7. The adjustable reset temperature thermal protector of claim 5 wherein the annular boss has internal threads on an inner wall thereof.
8. The thermal protector with adjustable reset temperature according to claim 5, wherein the body is provided with a second through hole corresponding to the annular protrusion, and the second through hole is provided with a second rubber plug.
9. The thermal protector with adjustable reset temperature according to claim 1, wherein the body comprises a shell with an opening at one side, an insulator is fixed at the opening of the shell, the metal support, the static contact and the bimetallic strip are respectively fixed on the insulator, the bimetallic strip is located inside the shell, and the metal support and the static contact are all extended from the inside of the shell to the outside of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320359061.1U CN219303557U (en) | 2023-02-28 | 2023-02-28 | Thermal protector capable of adjusting reset temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320359061.1U CN219303557U (en) | 2023-02-28 | 2023-02-28 | Thermal protector capable of adjusting reset temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303557U true CN219303557U (en) | 2023-07-04 |
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ID=86958605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320359061.1U Active CN219303557U (en) | 2023-02-28 | 2023-02-28 | Thermal protector capable of adjusting reset temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303557U (en) |
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2023
- 2023-02-28 CN CN202320359061.1U patent/CN219303557U/en active Active
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