CN211181809U - Temperature safety resistor with thermosensitive particles - Google Patents
Temperature safety resistor with thermosensitive particles Download PDFInfo
- Publication number
- CN211181809U CN211181809U CN201922236345.8U CN201922236345U CN211181809U CN 211181809 U CN211181809 U CN 211181809U CN 201922236345 U CN201922236345 U CN 201922236345U CN 211181809 U CN211181809 U CN 211181809U
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- ceramic tube
- pin
- metal shell
- movable contact
- particles
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Abstract
The utility model provides a set up temperature safety resistor of temperature sensing granule, include: the temperature-sensitive ceramic tube comprises a second ceramic tube 5 and temperature-sensitive particles 10, wherein the temperature-sensitive particles 10 are arranged at the bottom of the first ceramic tube 4, a movable contact piece 9 is arranged in front of the temperature-sensitive particles 10, the movable contact piece 9 is connected with a spring 60, a first pin 62 is arranged in the second ceramic tube 5, one end of the first pin 62 extends out of one end of the second ceramic tube 5 and is fixed on the second ceramic tube 5, the other end of the first pin is provided with a contact and extends out of the other end of the second ceramic tube 5, the metal shell 1 is wrapped and clamped outside the second ceramic tube 5, a first connecting part 11 is formed at one end of a large hole of the second ceramic tube 5 by the metal shell 1, the spring 60 is compressed in the second ceramic tube 5 and outside the first pin 62, and the movable contact piece 9 is electrically connected with the contact of the first pin 62.
Description
Technical Field
The utility model relates to a resistor, concretely relates to temperature safety resistor who sets up thermal sensitive granule.
Background
The resistor and the fuse are similar in material and structure, and the fuse type resistor has the functions of both, can be used as a resistor at ordinary times, plays the role of the fuse to protect machine equipment once the current is abnormal, and reduces the cost along with the dual-purpose function. The fuse type wire-wound resistor is one of the common forms, however, at present, most resistance wire windings and temperature fuses are connected in series in a ceramic matrix, and the length and the volume of the resistor are large. Chinese patent publication No.: CN109994293A discloses a resistor with a built-in metal case temperature fuse, the resistance wire winding is located outside the ceramic substrate, and the fuse connected through the metal case is located inside the ceramic substrate, which has the advantages of reducing the volume of the resistor, but still has the following disadvantages: 1) the pin and the metal shell are likely to be touched in the production process, and unqualified products are easy to produce when the pin and the metal shell are sealed by glue pouring; 2) the fuse is disposable and can not be used after being fused.
Chinese patent publication No.: CN 107968028A discloses a temperature fuse structure provided with heat-sensitive material, and the solution of heat-sensitive particles (10) is another common form of temperature fuse.
SUMMERY OF THE UTILITY MODEL
In view of the problems of the background art, it is an object of the present invention to provide a temperature fuse resistor provided with thermosensitive particles.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a temperature fuse resistor provided with thermosensitive particles, comprising: the heat-sensitive ceramic tube comprises a second ceramic tube (5) and heat-sensitive particles (10), wherein the heat-sensitive particles (10) are arranged at the bottom of the first ceramic tube (4), a movable contact piece (9) is arranged in front of the heat-sensitive particles (10), the movable contact piece (9) is connected with a spring (60), a first pin (62) is arranged in the second ceramic tube (5), one end of the first pin (62) extends out of one end of the second ceramic tube (5) and is fixed on the second ceramic tube (5), the other end of the first pin (9) is provided with a contact and extends out of the other end of the second ceramic tube (5), the second ceramic tube (5) is externally coated and clamped with a metal shell (1), the metal shell (1) forms a first connecting part (11) at one end of a large hole of the second ceramic tube (5), the spring (60) is compressed in the second ceramic tube (5) and outside the first pin (62), and the movable contact piece (9) is electrically connected with the contact of the first pin (62) and the, the metal shell is characterized in that the metal shell (1) is arranged in the first ceramic tube (4), the second connecting portion (12) of the metal shell (1) is turned to the outside of the first ceramic tube (4) and clamped, the other end of the first ceramic tube (4) is provided with a metal conductive cap (2) and clamped, a second pin (8) is welded on the metal conductive cap (2), a resistance wire winding (3) is arranged between the metal conductive cap (2) and the second connecting portion (12), and two ends of the resistance wire winding (3) are electrically connected with the metal conductive cap (2) and the second connecting portion (12) respectively.
Further, the second ceramic tube (5) is a hollow cylindrical tube body with a through hole at the bottom.
Further, the movable contact piece (9) is provided with a plurality of contact points which are contacted with the inner wall of the first ceramic tube (4).
The utility model has the advantages that: when the circuit is in overcurrent, the resistance wire winding (3) heats, the temperature of the resistor rises, the thermosensitive particles (10) are melted, and the spring (60) pushes the movable contact piece (9) to be disconnected with the contact of the first pin (62) and the first connecting part (11), so that the overcurrent protection effect is achieved.
Drawings
FIG. 1 is a schematic view of a temperature fuse resistor provided with thermosensitive particles;
description of the drawings: the temperature-sensitive electric heating wire comprises a metal shell (1), a metal conductive cap (2), a resistance wire winding (3), a first ceramic tube (4), a second ceramic tube (5), a spring (60), a second pin (8), a movable contact piece (9), thermosensitive particles (10), a first connecting part (11), a second connecting part (12) and a first pin (62).
Detailed Description
The present invention will be further described with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.
Example (b): as shown in fig. 1, a temperature safety resistor provided with thermosensitive particles includes: the heat-sensitive ceramic tube comprises a second ceramic tube (5) and heat-sensitive particles (10), wherein the heat-sensitive particles (10) are arranged at the bottom of the first ceramic tube (4), a movable contact piece (9) is arranged in front of the heat-sensitive particles (10), the movable contact piece (9) is connected with a spring (60), a first pin (62) is arranged in the second ceramic tube (5), one end of the first pin (62) extends out of one end of the second ceramic tube (5) and is fixed on the second ceramic tube (5), the other end of the first pin (9) is provided with a contact and extends out of the other end of the second ceramic tube (5), the second ceramic tube (5) is externally coated and clamped with a metal shell (1), the metal shell (1) forms a first connecting part (11) at one end of a large hole of the second ceramic tube (5), the spring (60) is compressed in the second ceramic tube (5) and outside the first pin (62), and the movable contact piece (9) is electrically connected with the contact of the first pin (62) and the, the metal shell (1) is arranged in the first ceramic tube (4), the second connecting portion (12) of the metal shell (1) is turned to the outside of the first ceramic tube (4) and clamped, the other end of the first ceramic tube (4) is provided with the metal conductive cap (2) and clamped, a second pin (8) is welded on the metal conductive cap (2) in a butt-joint mode, a resistance wire winding (3) is arranged between the metal conductive cap (2) and the second connecting portion (12), two ends of the resistance wire winding (3) are respectively and electrically connected with the metal conductive cap (2) and the second connecting portion (12), the second ceramic tube (5) is a hollow cylindrical tube body with a through hole at the bottom, and the movable contact piece (9) is provided with a plurality of contact points and is in contact with the inner wall of the first ceramic tube (4) to control the moving path to be stable.
The above examples are only intended to illustrate the specific embodiments of the present invention, but not to limit the present invention, and it will be apparent to those skilled in the art that various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should be regarded as the protection scope of the present invention.
Claims (3)
1. A temperature fuse resistor provided with thermosensitive particles, comprising: the heat-sensitive ceramic tube comprises a second ceramic tube (5) and heat-sensitive particles (10), wherein the heat-sensitive particles (10) are arranged at the bottom of the first ceramic tube (4), a movable contact piece (9) is arranged in front of the heat-sensitive particles (10), the movable contact piece (9) is connected with a spring (60), a first pin (62) is arranged in the second ceramic tube (5), one end of the first pin (62) extends out of one end of the second ceramic tube (5) and is fixed on the second ceramic tube (5), the other end of the first pin (9) is provided with a contact and extends out of the other end of the second ceramic tube (5), the second ceramic tube (5) is externally coated and clamped with a metal shell (1), the metal shell (1) forms a first connecting part (11) at one end of a large hole of the second ceramic tube (5), the spring (60) is compressed in the second ceramic tube (5) and outside the first pin (62), and the movable contact piece (9) is electrically connected with the contact of the first pin (62) and the, the metal shell is characterized in that the metal shell (1) is arranged in the first ceramic tube (4), the second connecting portion (12) of the metal shell (1) is turned to the outside of the first ceramic tube (4) and clamped, the other end of the first ceramic tube (4) is provided with a metal conductive cap (2) and clamped, a second pin (8) is welded on the metal conductive cap (2), a resistance wire winding (3) is arranged between the metal conductive cap (2) and the second connecting portion (12), and two ends of the resistance wire winding (3) are electrically connected with the metal conductive cap (2) and the second connecting portion (12) respectively.
2. A temperature fuse resistor provided with thermally sensitive particles according to claim 1, characterized in that the second ceramic tube (5) is a hollow cylindrical tube with a through hole at the bottom.
3. A temperature fuse resistor provided with thermally sensitive particles as claimed in claim 1 or 2, characterized in that the movable contact (9) has a plurality of contacts for contacting the inner wall of the first ceramic tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236345.8U CN211181809U (en) | 2019-12-13 | 2019-12-13 | Temperature safety resistor with thermosensitive particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236345.8U CN211181809U (en) | 2019-12-13 | 2019-12-13 | Temperature safety resistor with thermosensitive particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211181809U true CN211181809U (en) | 2020-08-04 |
Family
ID=71808469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922236345.8U Active CN211181809U (en) | 2019-12-13 | 2019-12-13 | Temperature safety resistor with thermosensitive particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211181809U (en) |
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2019
- 2019-12-13 CN CN201922236345.8U patent/CN211181809U/en active Active
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