CN216435788U - Miniature power-off time-delay protection temperature controller - Google Patents
Miniature power-off time-delay protection temperature controller Download PDFInfo
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- CN216435788U CN216435788U CN202122650444.8U CN202122650444U CN216435788U CN 216435788 U CN216435788 U CN 216435788U CN 202122650444 U CN202122650444 U CN 202122650444U CN 216435788 U CN216435788 U CN 216435788U
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- ceramic resistor
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Abstract
The utility model provides a miniature power-off time-delay protection temperature controller, which comprises a shell with an opening at the top end, wherein the shell is provided with a bend which is bent towards the inner side at the opening position, an annular supporting body is arranged below the bend in the shell, an insulating gasket and a thermal sensitive ceramic resistor are arranged between the annular supporting body and the bend, and the thermal sensitive ceramic resistor is positioned above the gasket and is contacted with the shell; a spring piece is arranged on the inner side of the annular supporting body, the middle part of the spring piece protrudes upwards, a movable contact is arranged in the middle part of the spring piece, and a bimetallic strip is sleeved on the movable contact; a fixed contact is fixed on the thermal sensitive ceramic resistor corresponding to the position of the movable contact, an epoxy sealing body is arranged on the opening of the shell, and the opening is sealed by the epoxy sealing body; the shell is electrically connected with a first lead, and the static contact is electrically connected with a second lead. The utility model provides a miniature outage time delay protection temperature controller simple structure, the simple installation.
Description
Technical Field
The utility model belongs to the technical field of the temperature control device technique and specifically relates to a miniature outage time delay protection temperature controller.
Background
The miniature temperature controller can also be called temperature detect switch, be the electrical apparatus component commonly used, the security that the good bad directness of its performance can influence the circuit, a current miniature temperature controller of commonly used uses a bottom plate and a base to pass through two spaces of formation behind the packing ring connection, a space sets up shell fragment structure, set up bimetallic strip and PTC (thermal sensitive ceramic resistor) between another one by one, connect through the fore-set between two spaces, concrete structure can refer to application number 2020222638805, the name is a miniature temperature controller, the miniature temperature controller structure of this structure is more complicated, the installation degree of difficulty is great.
Disclosure of Invention
The utility model aims at providing a miniature outage time-delay protection temperature controller to solve foretell technical problem.
The technical scheme of the application is as follows:
a miniature power-off time-delay protection temperature controller comprises a shell with an opening at the top end, wherein a bend bent towards the inner side is arranged at the position of the opening of the shell, an annular supporting body is arranged below the bend in the shell, an insulating gasket and a thermal sensitive ceramic resistor are arranged between the annular supporting body and the bend, and the thermal sensitive ceramic resistor is positioned above the gasket and is in contact with the shell; a spring piece is arranged on the inner side of the annular supporting body, the middle part of the spring piece protrudes upwards, a movable contact is arranged in the middle part of the spring piece, and a bimetallic strip is sleeved on the movable contact; a fixed contact is fixed on the thermal sensitive ceramic resistor corresponding to the position of the movable contact, an epoxy sealing body is arranged on the opening of the shell, and the opening is sealed by the epoxy sealing body; the shell is electrically connected with a first lead, and the static contact is electrically connected with a second lead.
Preferably, the first lead is fixed to the outer side of the housing; the fixed contact is fixedly connected with a binding post, the binding post penetrates through the thermal sensitive ceramic resistor to be exposed out of the thermal sensitive ceramic resistor, one end of the second lead is connected with the binding post, and the other end of the second lead penetrates through the epoxy sealing body to be exposed out of the shell.
Preferably, the binding post is riveted on the thermal sensitive ceramic resistor; or the binding post is in threaded connection with the thermal sensitive ceramic resistor.
Preferably, the annular support is provided integrally with the housing.
Preferably, the thickness of the bend is less than the thickness of the side wall of the housing.
Preferably, the angle of the bend is greater than 90 °.
Preferably, the bimetallic strip is a dish-shaped bimetallic strip, and the spring piece is a dish-shaped elastic piece.
The utility model provides a miniature outage time delay protection temperature controller has removed the fixed knot who has removed bottom plate, thermal sensitive ceramic resistor and stationary contact for current miniature temperature controller commonly used, simple structure, simple installation.
Drawings
Fig. 1 is a schematic view of an internal structure of a micro power-off time-delay protection temperature controller provided by the present invention;
in the figure: the circuit comprises a shell 1, a bend 2, an annular supporting body 3, an insulating washer 4, a thermal ceramic resistor 5, a spring piece 6, a movable contact 7, a bimetallic strip 8, a fixed contact 9, an epoxy sealing body 10, a first lead 11, a second lead 12 and a binding post 13.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
An embodiment of the present invention provides a micro power-off time-delay protection temperature controller, referring to fig. 1, including a shell 1 with an opening at the top end, the shell is provided with a bend 2 bent inward at the position of the opening, the shell is provided with an annular support body 3 below the bend, an insulating gasket 4 and a thermal sensitive ceramic resistor 5 are arranged between the annular support body and the bend, the thermal sensitive ceramic resistor is positioned above the gasket and contacts with the shell, wherein the annular support body can be arranged separately or integrally with the shell, and in order to simplify the operation, the thickness of the bottom of the side wall arranged inside is larger to form the annular support body when the shell is manufactured;
the inner side of the annular supporting body is provided with a spring piece 6, the middle part of the spring piece protrudes upwards, the middle part of the spring piece is provided with a movable contact 7, a bimetallic strip 8 is sleeved on the movable contact, generally, the bimetallic strip is a dish-shaped bimetallic strip, and the spring piece is a dish-shaped elastic piece; a fixed contact 9 is fixed on the thermal sensitive ceramic resistor corresponding to the position of the moving contact, an epoxy sealing body 10 is arranged on the opening of the shell, and the opening is sealed by the epoxy sealing body; the shell is electrically connected with a first lead 11, the stationary contact is electrically connected with a second lead 12, and the first lead is fixed on the outer side of the shell in the embodiment; to simplify the structure, the second conductive line may be provided in the following manner: the static contact is fixedly connected with a binding post 13, the binding post penetrates through the thermal sensitive ceramic resistor and is exposed out of the thermal sensitive ceramic resistor, one end of the second lead is connected with the binding post, the other end of the second lead penetrates through the epoxy sealing body and is exposed out of the shell, and the binding post can be riveted on the thermal sensitive ceramic resistor when the static contact is installed; the terminal post can also be connected with the thermal ceramic resistor in a threaded manner, which is a mounting manner well known to those skilled in the art and is not described in detail herein; in this embodiment, it is preferable that the thickness of the bend is smaller than the thickness of the side wall of the housing, and the angle of the bend is greater than 90 °.
When the micro power-off time-delay protection temperature controller is manufactured, the shell can be directly manufactured into the shell with an opening at the top end, the thickness of the top of the shell is smaller than that of other parts, then the spring piece with the movable contact, the bimetallic strip, the insulating gasket and the thermal sensitive ceramic resistor with the static contact are sequentially arranged, then the top of the shell is bent to form a bend, the thermal sensitive ceramic resistor and the insulating gasket are abutted to the annular supporting body, after the first lead and the second lead are connected, the opening is sealed by using epoxy sealant at the position of the opening, and the bending angle is larger than 90 degrees, so that a gap which is approximately three-shaped is formed at the bending position and the top end of the thermal sensitive ceramic resistor, the epoxy sealant can be filled in the gap to be contacted with the bottom surface of the bent part and contacted with the side surface, and the epoxy sealant is more firmly fixed with the shell after being solidified.
Compared with the existing common micro temperature controller, the structure has the advantages that the fixing structure of the bottom plate, the thermal sensitive ceramic resistor and the stationary contact is omitted, the structure is simple, the installation is simple and convenient, and the size of the temperature controller can be further reduced due to the simple structure, so that the miniaturization of the temperature controller is facilitated.
The use principle of the structure is as follows: under normal use state, the electric current passes through first wire in proper order, and a housing, the flexure strip, the movable contact, the stationary contact, the second wire forms the route, when equipment trouble, the bimetallic strip warp and makes stationary contact and movable contact disconnection, the electric current passes through first wire in proper order, and a housing, thermal sensitive ceramic resistor, the stationary contact, the second wire forms the route, the thermistor generates heat and makes the bimetallic strip be in high temperature state always, and then makes movable contact and stationary contact be in the off-state always, can resume normal use state until people's equipment outage restarts after, prevent like this that the potential safety hazard that the bimetallic strip automatic re-setting put through the power once more caused behind the temperature decline in the metal casing behind the hot protector circuit disconnection from switching off.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A miniature power-off time-delay protection temperature controller comprises a shell (1) with an opening at the top end, and is characterized in that a bend (2) bent towards the inner side is arranged at the position of the opening of the shell, an annular supporting body (3) is arranged below the bend in the shell, an insulating gasket (4) and a thermal sensitive ceramic resistor (5) are arranged between the annular supporting body and the bend, and the thermal sensitive ceramic resistor is positioned above the gasket and is in contact with the shell;
a spring piece (6) is arranged on the inner side of the annular supporting body, the middle part of the spring piece protrudes upwards, a movable contact (7) is arranged in the middle part of the spring piece, and a bimetallic strip (8) is sleeved on the movable contact;
a fixed contact (9) is fixed on the thermal sensitive ceramic resistor corresponding to the position of the movable contact, an epoxy sealing body (10) is arranged on the opening of the shell, and the opening is sealed by the epoxy sealing body;
the shell is electrically connected with a first lead (11), and the static contact is electrically connected with a second lead (12).
2. The miniature power-off time-delay protection temperature controller of claim 1, wherein the first conducting wire is fixed on the outer side of the housing;
the stationary contact is fixedly connected with a binding post (13), the binding post penetrates through the thermal sensitive ceramic resistor to be exposed out of the thermal sensitive ceramic resistor, one end of the second lead is connected with the binding post, and the other end of the second lead penetrates through the epoxy sealing body to be exposed out of the shell.
3. The miniature power-off time-delay protection temperature controller according to claim 2, wherein the binding post is riveted on the thermal sensitive ceramic resistor; alternatively, the first and second electrodes may be,
the binding post is in threaded connection with the thermal sensitive ceramic resistor.
4. The micro power-off time-delay protection temperature controller of claim 1, wherein the ring-shaped supporting body is integrally provided with the housing.
5. The micro power-off time-delay protection temperature controller according to claim 1, wherein the thickness of the bend is smaller than the thickness of the side wall of the housing.
6. The miniature power-off time-delay protection temperature controller according to claim 1, wherein the angle of the bend is greater than 90 °.
7. The miniature power-off time-delay protection temperature controller according to claim 1, wherein the bimetallic strip is a dished bimetallic strip, and the spring strip is a dished spring strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650444.8U CN216435788U (en) | 2021-11-01 | 2021-11-01 | Miniature power-off time-delay protection temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650444.8U CN216435788U (en) | 2021-11-01 | 2021-11-01 | Miniature power-off time-delay protection temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216435788U true CN216435788U (en) | 2022-05-03 |
Family
ID=81334597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122650444.8U Active CN216435788U (en) | 2021-11-01 | 2021-11-01 | Miniature power-off time-delay protection temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216435788U (en) |
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2021
- 2021-11-01 CN CN202122650444.8U patent/CN216435788U/en active Active
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