CN214411065U - Fusible metal temperature sensing protector - Google Patents
Fusible metal temperature sensing protector Download PDFInfo
- Publication number
- CN214411065U CN214411065U CN202120368414.5U CN202120368414U CN214411065U CN 214411065 U CN214411065 U CN 214411065U CN 202120368414 U CN202120368414 U CN 202120368414U CN 214411065 U CN214411065 U CN 214411065U
- Authority
- CN
- China
- Prior art keywords
- shell
- fusible metal
- bimetallic strip
- conductive
- block
- 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.)
- Active
Links
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model provides a temperature-sensing thermal protector for fusible metal, which comprises a shell, an insulating block, a conductive bottom plate and a bimetallic strip, wherein the conductive bottom plate is fixed at the bottom of the insulating block; one end of the bimetallic strip is fixed on the insulating block, the other end of the bimetallic strip is provided with a movable contact, the conductive bottom plate is provided with a stationary contact matched with the movable contact, the insulating block, the conductive bottom plate and the bimetallic strip are arranged in the shell, the bottom plate is connected with a first lead, and the first lead extends out of the shell; the shell is also internally provided with a conductive terminal, the conductive terminal is connected with a second lead, and the second lead extends out of the shell; a fusible metal body is arranged between the conductive terminal and the bimetallic strip, one end of the fusible metal body is connected with the conductive terminal, and the other end of the fusible metal body is connected with the bimetallic strip; and the shell is provided with an indicating device which is connected with the fusible metal body in parallel. The utility model provides a fusible metal temperature sensing thermal protector has increased thermal protector's protect function.
Description
Technical Field
The utility model belongs to the technical field of temperature control device technique and specifically relates to a hot protector of fusible metal temperature sensing.
Background
The thermal protector is a common electrical element, the safety of a circuit can be directly influenced by the performance of the thermal protector, the conventional thermal protector only has an overheat protection function generally, and the conventional thermal protector is single in function and cannot meet higher requirements of people.
Disclosure of Invention
An object of the utility model is to provide a fusible metal temperature sensing thermal protector to solve foretell technical problem.
The technical scheme of the application is as follows: a temperature-sensing thermal protector for fusible metals comprises a shell, an insulating block, a conductive bottom plate and a bimetallic strip, wherein the conductive bottom plate is fixed at the bottom of the insulating block; one end of the bimetallic strip is fixed on the insulating block, the other end of the bimetallic strip is provided with a movable contact, a fixed contact matched with the movable contact is arranged on the conductive bottom plate, the insulating block, the conductive bottom plate and the bimetallic strip are arranged in the shell, the bottom plate is connected with a first lead, and the first lead extends out of the shell; the shell is internally provided with a conductive terminal, a second lead is connected to the conductive terminal, and the second lead extends out of the shell; a fusible metal body is arranged between the conductive terminal and the bimetallic strip, one end of the fusible metal body is connected with the conductive terminal, and the other end of the fusible metal body is connected with the bimetallic strip; and the shell is provided with an indicating device which is connected with the fusible metal body in parallel.
Preferably, the indicating device further comprises a second fixed block, elastic conducting strips are fixed at two ends of the second fixed block, the fixed positions are close to one ends of the elastic conducting strips, and the indicating device is fixed on the second fixed block and is electrically connected with the two conducting strips; concave parts are arranged on two sides of the second fixed block close to the other end of the elastic conducting strip, and two ends of the fusible metal body are clamped in the concave parts on two sides of the second fixed block; an arc-shaped groove is formed in the outer side surface of the elastic conducting plate at a position close to the concave part; a groove is formed in the top end of the insulating block, a first fixing block is arranged on the groove, one end of the first fixing block enables the bimetallic strip and the conductive terminal to abut against the insulating block, and the other end of the first fixing block abuts against the shell; a first through hole is formed in the first fixing block, and a second through hole is formed in the position, corresponding to the first through hole, of the shell; one end of the bimetallic strip, which is not provided with the moving contact, extends into the groove and is provided with a first arc-shaped bulge matched with the arc-shaped groove; the conductive terminal is a spring plate, one end of the conductive terminal, which is not connected with the lead, extends into the groove and is provided with a second arc-shaped bulge matched with the arc-shaped groove; the bottom end of the second fixing block penetrates through the first through hole and the second through hole to be located in the groove.
Preferably, the fusible metal body is a fuse or a fuse piece; the indicating device is an indicating lamp, a loudspeaker or an audible and visual alarm.
Preferably, the first fixed block is a plastic block; the elastic conducting sheet and the elastic sheet are both metal elastic sheets.
Preferably, the housing comprises a housing body with an opening at one end and an epoxy sealing body, and the epoxy sealing body seals the opening of the housing; the first lead and the second lead penetrate through the epoxy sealing body and are exposed out of the shell.
The utility model provides a hot protector of fusible metal temperature sensing has following advantage:
1. by arranging the conductive terminals and the fusible metal body and connecting the fusible metal body with the bimetallic strip, the fusible metal body can be fused once a circuit is short-circuited after the thermal protector is connected to the circuit, so that the protection on equipment in the circuit is formed, and the protection function of the thermal protector is increased;
2. through the mode that the indicating device is installed on the shell and connected with the fusible metal body in parallel, the indicating device changes the state after the fusible metal body is fused, so that people can conveniently find fault points, and the shell has the function of conveniently troubleshooting.
Drawings
Fig. 1 is a schematic view of an internal structure of a fusible metal temperature-sensing thermal protector provided by the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
in the figure: the high-voltage fuse comprises a shell body 1, an insulating block 2, a conductive bottom plate 3, a bimetallic strip 4, a movable contact 5, a fixed contact 6, a first lead 7, a groove 8, a first fixing block 9, a first through hole 10, a second through hole 11, a conductive terminal 12, an indicating device 13, a second lead 14, a second fixing block 15, an elastic conductive sheet 16, a fusible metal body 17, an arc-shaped groove 18, a first arc-shaped bulge 19, a second arc-shaped bulge 20 and an epoxy sealing body 21.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Embodiment 1, the present invention provides a fusible metal temperature-sensing thermal protector, which is shown in fig. 1 and 2, and includes a housing, an insulating block 2, a conductive bottom plate 3 and a bimetallic strip 4, wherein the conductive bottom plate is fixed at the bottom of the insulating block; one end of the bimetallic strip is fixed on the insulating block, the other end of the bimetallic strip is provided with a movable contact 5, a fixed contact 6 matched with the movable contact is arranged on the conductive bottom plate, the insulating block, the conductive bottom plate and the bimetallic strip are arranged in the shell, the bottom plate is connected with a first lead 7, and the first lead extends out of the shell; the shell is also internally provided with a conductive terminal 12, a second lead 14 is connected to the conductive terminal, and the second lead extends out of the shell; a fusible metal body 17 is arranged between the conductive terminal and the bimetallic strip, one end of the fusible metal body is connected with the conductive terminal, and the other end of the fusible metal body is connected with the bimetallic strip; an indicating device 13 is arranged on the shell and is connected with the fusible metal body in parallel. In this embodiment, the housing includes a housing body 1 with an opening at one end and an epoxy sealing body 21, and the epoxy sealing body seals the opening of the housing; the first lead and the second lead penetrate through the epoxy sealing body and are exposed out of the shell. During manufacturing, the conductive bottom plate, the bimetallic strip and the conductive terminal can be firstly fixed with the insulating block, then connected with the conducting wire and then filled into the shell body, the conducting wire is exposed out of the shell and sealed by epoxy glue, and the epoxy glue is solidified to form the epoxy sealing body 14.
The temperature-sensing thermal protector for the fusible metal has the following advantages:
1. by arranging the conductive terminals and the fusible metal body and connecting the fusible metal body with the bimetallic strip, the fusible metal body can be fused once a circuit is short-circuited after the thermal protector is connected to the circuit, so that the protection on equipment in the circuit is formed, and the protection function of the thermal protector is increased;
2. through the mode that the indicating device is installed on the shell and connected with the fusible metal body in parallel, the indicating device changes the state after the fusible metal body is fused, so that people can conveniently find fault points, and the shell has the function of conveniently troubleshooting.
This structure has the following advantages:
1. the fusible metal body is convenient to replace when being fused, and the second fixing block is only required to be forcibly taken down and installed after the fusible metal body is replaced;
2. after the second fixing block is installed, the arc-shaped grooves of the elastic conducting strips at two sides are abutted against the corresponding two arc-shaped bulges, and two ends of the elastic conducting strips are abutted against the concave parts, so that the elastic conducting strips are in good contact with the bimetallic strip and the conductive terminal; the elastic conducting strips and the conductive terminals have elasticity, so that the arc-shaped grooves of the elastic conducting strips on two sides are not easy to separate from the corresponding two arc-shaped bulges, and the connection is more stable;
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 (5)
1. A temperature-sensing thermal protector for fusible metals comprises a shell, an insulating block (2), a conductive bottom plate (3) and a bimetallic strip (4), wherein the conductive bottom plate is fixed at the bottom of the insulating block; one end of the bimetallic strip is fixed on the insulating block, the other end of the bimetallic strip is provided with a movable contact (5), the conductive bottom plate is provided with a fixed contact (6) matched with the movable contact, the insulating block, the conductive bottom plate and the bimetallic strip are arranged in the shell, the bottom plate is connected with a first lead (7), and the first lead extends out of the shell; it is characterized in that the preparation method is characterized in that,
the shell is also internally provided with a conductive terminal (12), a second lead (14) is connected to the conductive terminal, and the second lead extends out of the shell; a fusible metal body (17) is arranged between the conductive terminal and the bimetallic strip, one end of the fusible metal body is connected with the conductive terminal, and the other end of the fusible metal body is connected with the bimetallic strip; an indicating device (13) is arranged on the shell and is connected with the fusible metal body in parallel.
2. The protector of claim 1, further comprising a second fixing block (15), wherein elastic conductive strips (16) are fixed to both ends of the second fixing block, the fixing position is close to one end of the elastic conductive strips, and the indicating device is fixed to the second fixing block and electrically connected to the two conductive strips; concave parts are arranged on two sides of the second fixed block close to the other end of the elastic conducting strip, and two ends of the fusible metal body are clamped in the concave parts on two sides of the second fixed block; an arc-shaped groove (18) is formed in the outer side surface of the elastic conducting sheet at a position close to the concave part;
a groove (8) is formed in the top end of the insulating block, a first fixing block (9) is arranged on the groove, one end of the first fixing block enables the bimetallic strip and the conductive terminal to abut against the insulating block, and the other end of the first fixing block abuts against the shell; a first through hole (10) is formed in the first fixing block, and a second through hole (11) is formed in the position, corresponding to the first through hole, of the shell; one end of the bimetallic strip, which is not provided with the moving contact, extends into the groove and is provided with a first arc-shaped bulge (19) matched with the arc-shaped groove; the conductive terminal is a spring plate, one end of the conductive terminal, which is not connected with the lead, extends into the groove and is provided with a second arc-shaped bulge (20) matched with the arc-shaped groove; the bottom end of the second fixing block penetrates through the first through hole and the second through hole to be located in the groove.
3. The protector of claim 1 or 2, wherein the fusible metal body is a fuse or a fuse plate;
the indicating device is an indicating lamp, a loudspeaker or an audible and visual alarm.
4. The fusible metal temperature-sensing thermal protector of claim 2, wherein the first fixed block is a plastic block;
the elastic conducting sheet and the elastic sheet are both metal elastic sheets.
5. A fusible metal temperature-sensitive thermal protector according to claim 1, wherein the housing comprises a housing body (1) open at one end and an epoxy seal (21) which seals the opening of the housing;
the first lead and the second lead penetrate through the epoxy sealing body and are exposed out of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120368414.5U CN214411065U (en) | 2021-02-08 | 2021-02-08 | Fusible metal temperature sensing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120368414.5U CN214411065U (en) | 2021-02-08 | 2021-02-08 | Fusible metal temperature sensing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214411065U true CN214411065U (en) | 2021-10-15 |
Family
ID=78024865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120368414.5U Active CN214411065U (en) | 2021-02-08 | 2021-02-08 | Fusible metal temperature sensing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214411065U (en) |
-
2021
- 2021-02-08 CN CN202120368414.5U patent/CN214411065U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9496112B2 (en) | Electric device | |
| CN1304142A (en) | Discharge device for overvoltage protection | |
| CN114373653B (en) | Expansion fuse | |
| CN204696674U (en) | A kind of surge protector through-flow greatly | |
| CN214411065U (en) | Fusible metal temperature sensing protector | |
| CN209982052U (en) | Surge protector | |
| CN103871777A (en) | Temperature-dependent switch | |
| JP5256304B2 (en) | New overheat protection voltage dependent resistor | |
| CN104810814A (en) | Chase-flow surge protector | |
| CN210490455U (en) | Integral surge protector | |
| JP2003297204A (en) | Thermal protector | |
| CN110024054B (en) | Thermally protected metal oxide piezoresistor | |
| CN212783332U (en) | Temperature fuse and surge protection device | |
| CN211529803U (en) | Overcurrent over-temperature self-recovery power capacitor | |
| EP0385202B1 (en) | Enclosed bimetal circuit breaker | |
| JP3257680B2 (en) | Thermal response switch and method of manufacturing the same | |
| CN216435788U (en) | Miniature power-off time-delay protection temperature controller | |
| CN201868331U (en) | Internal single-lead-pin compressor protector | |
| CN216902674U (en) | Heat dissipation type heat protector | |
| CN210575798U (en) | Contact for built-in current protector | |
| CN219917018U (en) | Thermal protector | |
| CN213815972U (en) | Miniature sealed temperature-sensitive thermal protector | |
| CN216648170U (en) | Electric connection structure and direct current multi-coupling protector | |
| CN218299741U (en) | Electric equipment and temperature-limiting and over-temperature dual protection device thereof | |
| CN213277943U (en) | Built-in power-off compaction current and temperature double-protection thermal protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |