CN220491822U - Switch protector - Google Patents
Switch protector Download PDFInfo
- Publication number
- CN220491822U CN220491822U CN202322282593.2U CN202322282593U CN220491822U CN 220491822 U CN220491822 U CN 220491822U CN 202322282593 U CN202322282593 U CN 202322282593U CN 220491822 U CN220491822 U CN 220491822U
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- CN
- China
- Prior art keywords
- bimetallic strip
- button
- box body
- switch protector
- heat
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- 230000001012 protector Effects 0.000 title claims abstract description 39
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model discloses a switch protector, which comprises a box body, a button, a thermosensitive bimetallic strip and an elastic adjusting part, wherein the button is arranged on the box body; the button is arranged at the top of the box body, the thermosensitive bimetallic strip is arranged in the box body, one end of the thermosensitive bimetallic strip is connected with the terminal, the other end of the thermosensitive bimetallic strip is connected with the button through the linkage piece, the elastic adjusting component is fixed in the box body and connected with the other end of the thermosensitive bimetallic strip, and the elastic adjusting component is used for applying pressure to the thermosensitive bimetallic strip and adjusting the thermal deformation force of the thermosensitive bimetallic strip; the switch protector has the advantages of simple integral structure, simple and convenient overload current adjusting mode, and suitability for different electronic equipment.
Description
Technical Field
The utility model relates to the technical field of electric automation tools, in particular to a switch protector.
Background
The operation of the power control switch mainly comprises the execution of two actions of electrifying and powering off of a current loop, and the switch protector has the function of automatically tripping off a power-off protection circuit when the current is overloaded and overheated besides the function of manually pressing a button to electrify and power off the power control loop, but the overload current of the power control switch is required to be regulated to adapt to various electric appliances due to the performance difference of the current increasing electric appliances and devices, the current power control switch cannot be continuously regulated in a differentiated way, in addition, in the production process of the power control switch, for example, the number of the switches in the batch is 15A, but the overload current of a part of the power control switch is 15.8A, and the current is treated as a defective product, so that great resource waste is caused.
In view of the above problems, it is necessary to design a switching protector to achieve controllable and accurate adjustment of current.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides the switch protector, and the current regulation of the switch protector can be realized by changing the deformation of the pressing thermosensitive bimetallic strip.
The utility model is realized by the following technical scheme:
a switch protector is characterized by comprising a box body, a button, a thermosensitive bimetallic strip and an elastic adjusting part;
the button sets up at the top of box body, and thermal-sensitive bimetallic strip sets up in the inside of box body, and thermal-sensitive bimetallic strip's one end is connected with the terminal, and its other end passes through the interlock and is connected with the button, and elastic adjustment part fixes in the inside of box body to be connected with thermal-sensitive bimetallic strip's the other end, elastic adjustment part is used for exerting pressure to thermal-sensitive bimetallic strip, adjusts thermal deformation force of thermal-sensitive bimetallic strip.
Preferably, the elastic adjusting part is a U-shaped elastic piece, the opening end of the U-shaped elastic piece is downwards arranged in the box body, one end of the U-shaped elastic piece is fixedly connected with the inner wall of the shell, and the other end of the U-shaped elastic piece is clamped with the end part of the thermosensitive bimetallic strip through a clamping structure.
Preferably, the clamping structure comprises a T-shaped block and a clamping hole matched with the T-shaped block;
the T-shaped block is arranged at the end part of the thermosensitive bimetallic strip, the clamping hole is arranged at the end part of the U-shaped elastic sheet, and the T-shaped block is connected with the clamping hole.
Preferably, an adjusting part is further arranged in the box body and used for adjusting and controlling the pressure of the elastic adjusting part on the thermosensitive bimetallic strip.
Preferably, the adjusting part is an adjusting screw, and the end part of the adjusting screw moves up and down to adjust the included angle of the U-shaped elastic sheet.
Preferably, the adjusting screw is arranged at the bottom of the box body, and the upper end of the adjusting screw is abutted with the inner wall of one side, far away from the thermosensitive bimetallic strip, of the U-shaped elastic piece.
Preferably, the bottom surface of the thermal bimetal is provided with a first contact for controlling the contact of the stage terminal.
Preferably, the upper end of the linkage piece is rotationally connected with one end of the button, and the lower end of the linkage piece is movably connected with the end part of the thermosensitive bimetallic strip.
Preferably, the upper end of the linkage piece is provided with a connecting shaft, the connecting shaft is rotationally connected with the bottom of one end of the button, the lower end of the linkage piece is provided with a clamping groove with one open end, one end of the thermosensitive bimetallic strip, which is close to the elastic adjusting part, is provided with a clamping part, and the linkage piece is connected with the clamping part through the open clamping groove.
Preferably, the top of the box body is provided with a groove for installing a button, and two sides of the middle part of the button are rotationally connected with two side walls of the groove through a rotating shaft.
Compared with the prior art, the utility model has the following beneficial technical effects:
according to the switch protector provided by the utility model, the thermosensitive bimetallic strip and the elastic adjusting part connected with the thermosensitive bimetallic strip are arranged in the box body, the deformation of the elastic adjusting part is controlled through the adjusting part, so that the pressure applied by the elastic adjusting part to the thermosensitive bimetallic strip is controlled, the original thermal deformation of the thermosensitive bimetallic strip is changed due to the influence of external pressure, the corresponding temperature is required to be elastically deformed, the heat of the thermosensitive bimetallic strip is controlled by passing current, and the overload current control of the switch controller can be realized by controlling the thermal deformation of the thermosensitive bimetallic strip. The switch protector has the advantages of simple integral structure, simple and convenient overload current adjusting mode, and suitability for different electronic equipment.
Drawings
FIG. 1 is a schematic diagram of the switch protector in the energized state of the present utility model;
FIG. 2 is a schematic diagram of the switch protector of the present utility model in an off state;
FIG. 3 is an exploded view of the switch protector of the present utility model energized;
fig. 4 is a schematic diagram of the connection between the U-shaped spring and the thermosensitive bimetal.
In the figure: the box body 1, the button 3, the first terminal 4, the thermosensitive bimetallic strip 5, the first contact 6, the second contact 7, the U-shaped elastic sheet 8, the second terminal 9, the linkage piece 11 and the adjusting screw 15.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the utility model.
Referring to fig. 1 to 3, a switch protector includes a case 1, a button 3, a thermally sensitive bimetal 5, and a U-shaped spring.
The inside of box body 1 is hollow structure, and the top of box body 1 is provided with the recess that is used for installing button 3, and button 3 sets up in the recess, and the both sides at button 3 middle part are rotated through pivot and the both sides wall of recess and are connected, and the both ends of button 3 can rotate from top to bottom along the pivot.
The bottom of box body 1 is provided with three draw-in groove, and three terminal joint respectively is in the draw-in groove, and three terminal is first terminal 4, second terminal 9 and third terminal 12 respectively, and as shown in fig. 2, three terminal set up from right to left interval in proper order, and the upper end joint of terminal is in the draw-in groove, and the lower extreme of terminal extends to the bottom of box body for connect the lead wire.
The heat-sensitive bimetallic strip 5 is arranged in the cavity, one end of the heat-sensitive bimetallic strip 5 is connected with the upper end of the first terminal 4, the other end of the heat-sensitive bimetallic strip extends towards the direction of the third terminal 12, one end of the U-shaped elastic strip is connected with the other end of the heat-sensitive bimetallic strip 5, the other end of the U-shaped elastic strip is fixedly connected with the inside of the cavity, the U-shaped elastic strip is used for applying pressure to the heat-sensitive bimetallic strip 5, and an adjusting device is arranged at the bottom of the U-shaped elastic strip and used for controlling the deformation of the U-shaped elastic strip.
Referring to fig. 4, the U-shaped spring plate is installed upside down, i.e. the open end of the U-shaped spring plate 8 is located at the bottom of the cavity, two ends of the U-shaped spring plate 8 are respectively provided with a connecting portion, one connecting portion is connected with the inside of the cavity by hot melting, and the other connecting portion is connected with the end of the thermal-sensitive bimetallic strip 5 by a clamping structure.
The joint structure includes T type piece and rather than complex card hole, T type piece sets up the tip at thermal bimetal 5, the card hole sets up the tip at U-shaped shell fragment 8, T type piece is connected with the card hole, adjusting device is adjusting screw 15, adjusting screw 15 installs the bottom at box body 1, the adjusting screw 15 upper end stretches into in the cavity, and the upper end and the inner wall butt of U-shaped shell fragment 8 of adjusting screw 15, this inner wall is the one side inner wall of keeping away from thermal bimetal 5, the deflection through adjusting screw 15 control U-shaped shell fragment 8, and then apply different pressures to thermal bimetal 5's tip, change thermal bimetal 5 and take place the required deforming force of deformation.
The bottom surface of thermal-sensitive bimetallic strip 5 is provided with first contact 6, and the top of second terminal 9 is provided with second contact 7, and when the switch protector was in the switch-on state, first contact 6 and second contact 7 butt each other, and when thermal-sensitive bimetallic strip 5 overheated deformation back, first contact 6 and second contact 7 separation, the switch protector disconnection.
The button 3 is connected with the thermal bimetal 5 through the linkage piece 11, the linkage piece 11 is of a sheet structure, the upper end of the linkage piece 11 is provided with a connecting shaft, the connecting shaft is rotationally connected with the bottom of one end of the button 3, the lower end of the linkage piece 11 is provided with a clamping groove with one end open, one end, close to the U-shaped elastic sheet 8, of the thermal bimetal 5 is provided with a clamping part, and the linkage piece 11 is connected with the clamping part through the open clamping groove.
The box body comprises a shell, a cavity is formed in one side of the shell, a sealing plate is arranged on the cavity side of the shell, three terminals are respectively arranged in a clamping groove at the bottom of the shell in the installation process of the switch protector, meanwhile, a thermosensitive bimetallic strip 5 and a U-shaped elastic sheet 8 are arranged in the cavity, the thermosensitive bimetallic strip 5 is connected with a button through a linkage piece, and finally the cavity of the shell is sealed through the sealing plate, so that the installation of the switch protector is completed.
The following describes a method for using the switch protector provided by the utility model in detail.
The working principle of the switch protector is that under the power-on state of the switch protector, the current passes through the heat-sensitive bimetallic strip 5 to heat, the heat-sensitive bimetallic strip 5 is completely deformed after reaching a certain temperature, the first contact 6 and the second contact 7 are separated, and the switch protector is powered off to protect equipment.
In order to solve the problem that different electronic equipment can be used for the switch protector, according to different equipment, the overload current of the switch protector is regulated, the U-shaped spring piece 8 is arranged at the end part of the heat-sensitive bimetallic strip 5, the regulating screw 15 is arranged on the box body, in the initial state of the U-shaped spring piece 8, the pressure exerted by the U-shaped spring piece 8 on the heat-sensitive bimetallic strip 5 is maximum, that is, the temperature to be reached when the heat-sensitive bimetallic strip 5 is deformed is maximum, that is, the passing current is maximum, when the current value needs to be reduced, the regulating screw is rotated to enable the heat-sensitive bimetallic strip 5 to move upwards, the bottom of the regulating screw 15 enables the U-shaped spring piece 8 to be deformed, even if the included angle of the U-shaped spring piece 8 is reduced, the pressure exerted by the U-shaped spring piece 8 on the end part of the heat-sensitive bimetallic strip 5 is reduced, that is, the passing current is reduced, the overload current of the switch protector is regulated, and the adjustable range of the overload current is about 1A.
According to the switch protector provided by the utility model, in the production process, aiming at defective products, the U-shaped elastic sheet is triggered to deform by twisting the adjusting screw, so that the change of the pressing force of the U-shaped elastic sheet on the pressing heat-sensitive bimetallic strip can be adjusted, and the fine adjustment of current can be completed, so that the switch protector meets the product requirements.
The above is only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the claims of the present utility model.
Claims (10)
1. The switch protector is characterized by comprising a box body (1), a button (3), a thermosensitive bimetallic strip (5) and an elastic adjusting part;
the button (3) is arranged at the top of the box body, the heat-sensitive bimetallic strip (5) is arranged in the box body, one end of the heat-sensitive bimetallic strip (5) is connected with the terminal, the other end of the heat-sensitive bimetallic strip is connected with the button through the linkage piece (11), the elastic adjusting part is fixed in the box body and connected with the other end of the heat-sensitive bimetallic strip (5), and the elastic adjusting part is used for applying pressure to the heat-sensitive bimetallic strip (5) and adjusting the heat deformation force of the heat-sensitive bimetallic strip (5).
2. The switch protector according to claim 1, wherein the elastic adjusting component is a U-shaped spring piece (8), an opening end of the U-shaped spring piece (8) is downward arranged in the box body, one end of the U-shaped spring piece (8) is fixedly connected with an inner wall of the shell, and the other end of the U-shaped spring piece is clamped with an end portion of the heat-sensitive bimetallic strip (5) through a clamping structure.
3. A switch protector according to claim 2 wherein the clamping structure comprises a T-block and a clamping aperture cooperating therewith;
the T-shaped block is arranged at the end part of the thermosensitive bimetallic strip (5), the clamping hole is arranged at the end part of the U-shaped elastic sheet (8), and the T-shaped block is connected with the clamping hole.
4. A switch protector according to claim 2, characterized in that the inside of the case is further provided with an adjusting member for regulating the pressure of the elastic adjusting member against the heat-sensitive bimetal (5).
5. A switch protector according to claim 4, characterized in that the adjusting means is an adjusting screw (15), the end of the adjusting screw (15) being movable up and down to adjust the angle of the U-shaped spring (8).
6. The switch protector according to claim 5, characterized in that the adjusting screw (15) is arranged at the bottom of the box body, and the upper end of the adjusting screw (15) is abutted against the inner wall of the side, far away from the thermosensitive bimetallic strip (5), of the U-shaped spring piece (8).
7. A switch protector according to claim 1, characterized in that the bottom surface of the thermally sensitive bimetal (5) is provided with a first contact for control stage terminal contact.
8. A switch protector according to claim 1, characterized in that the upper end of the linkage member (11) is rotatably connected to one end of the push button, and the lower end of the linkage member (11) is movably connected to the end of the thermo-sensitive bimetal (5).
9. The switch protector according to claim 8, wherein a connecting shaft is provided at an upper end of the linking member (11), the connecting shaft is rotatably connected with a bottom of one end of the button (3), a clamping groove with one end open is provided at a lower end of the linking member (11), a clamping portion is provided at one end of the thermosensitive bimetallic strip (5) close to the elastic adjusting member, and the linking member (11) is connected with the clamping portion through the open clamping groove.
10. The switch protector according to claim 1, wherein the top of the case is provided with a groove for installing the button (3), and both sides of the middle part of the button (3) are rotatably connected with both side walls of the groove through a rotation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282593.2U CN220491822U (en) | 2023-08-23 | 2023-08-23 | Switch protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282593.2U CN220491822U (en) | 2023-08-23 | 2023-08-23 | Switch protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220491822U true CN220491822U (en) | 2024-02-13 |
Family
ID=89831904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322282593.2U Active CN220491822U (en) | 2023-08-23 | 2023-08-23 | Switch protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220491822U (en) |
-
2023
- 2023-08-23 CN CN202322282593.2U patent/CN220491822U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |