CN111105964A - Temperature-sensitive particle type temperature fuse - Google Patents
Temperature-sensitive particle type temperature fuse Download PDFInfo
- Publication number
- CN111105964A CN111105964A CN201811249330.9A CN201811249330A CN111105964A CN 111105964 A CN111105964 A CN 111105964A CN 201811249330 A CN201811249330 A CN 201811249330A CN 111105964 A CN111105964 A CN 111105964A
- Authority
- CN
- China
- Prior art keywords
- temperature
- movable
- fuse
- terminal
- fixed
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/06—Fusible members characterised by the fusible material
Abstract
The present invention relates to a temperature-sensitive particle type thermal fuse, which includes: a metal cylindrical case (10); a first lead (L1); a second lead (L2); temperature-sensitive particles (30) which soften or melt at or above a predetermined fuse operating temperature; a ring-shaped fixed terminal (40) which is fixed to an inner side wall (11) of the housing (10) so as to be electrically connected to the housing (10), and which has a through hole (41) formed in a central axis direction; a movable terminal (60) having a first tip (62) that comes into contact with the fixed contact (L2a) on the second lead (L2) side when the fuse operating temperature is not higher than the fuse operating temperature, and that forms a movable contact with the upper end of the inner wall of the through hole (41) of the fixed terminal (40); and a second spring (70) that applies an elastic force to the movable terminal (60) to bring the second tip (65) of the movable terminal (60) into close contact with the upper end surface of the temperature-sensitive particle (30), wherein the movable terminal (60) includes a movable contact piece (53).
Description
Technical Field
The present invention relates to a temperature-sensitive particle type thermal fuse, and particularly to a temperature-sensitive particle type thermal fuse as follows: when the ambient temperature exceeds a predetermined allowable temperature range to a certain extent in an electric apparatus or an electronic apparatus, the temperature-sensitive particles inside the casing soften or melt, and the electric circuit or the electronic circuit is shut off (cut-off).
Background
A temperature fuse is used as a protection member for detecting a temperature of an appliance and rapidly cutting off a circuit in the event of an abnormal overheat in a household electric product, an industrial electric appliance, or an electronic appliance. The thermal fuse is mounted on, for example, a product such as a home appliance, a portable device, a communication device, an office appliance, an automobile appliance, an AC adapter, a charger, a motor, or a battery. Generally, a temperature-sensitive particle type thermal fuse is used as a high current specification. Patent document 1 discloses an example of such a temperature-sensitive particle type thermal fuse.
The conventional temperature-sensitive particle type thermal fuse disclosed in patent document 1 is composed of: a cylindrical conductive metal case 1 having an open inner space and having one end sealed by a bottom wall and the other end opened; a first lead 2 electrically connected to the bottom wall of the metal case 1; a second lead 3 which is coupled to the metal case 1 in an insulated state via an insulating bush 4 at a tip of the open side of the metal case 1 on the opposite side of the first lead 2; temperature sensitive particles 9 which are accommodated in the internal space of the metal case 1 in a solid state with a constant height, are biased toward the second lead 3 side by an elastic restoring force of a first spring 8 whose one end is supported by the inner bottom wall of the metal case 1 and which is provided in a compressed state, and are melted when the ambient temperature reaches an operating temperature relatively higher than the normal temperature range; a movable terminal 6 having one end in edge-side sliding contact with the inner wall of the metal case 1 to form a movable contact and supported on one side surface of the temperature sensitive particles 9, and the other end in contact with or separated from the end of the second lead 3 to allow the first lead 2 and the second lead 3 to be electrically connected to or disconnected from each other (cut-off); and a second spring 6b which is compressed between the movable terminal 6 and the insulating bush 4 so as to be separated from the fixed contact on the second lead 3 side when the ambient temperature is lower than a predetermined fuse operating temperature and the movable terminal 6 comes into contact with the fixed contact on the second lead 3 side when the ambient temperature is higher than the fuse operating temperature.
In the case of such a conventional temperature-sensitive particle type thermal fuse, the tip portion of the contact piece, in which the movable terminal 6 extends obliquely upward from the center toward the edge, comes into contact with the inner wall of the metal case 1 along the circumferential direction, thereby forming a movable contact that is in sliding contact with the inner wall of the metal case 1. Further, since the temperature sensitive particles are melted in an unfixed shape, a phenomenon occurs in which the support surface supporting the movable terminal 6 is inclined, instead of maintaining a constant horizontal shape. When the movable terminal 6 is not held horizontally but inclined in this way, the contact piece of the movable terminal is inserted into the inner wall of the metal case 1 to cause a phenomenon of hindering the sliding operation, thereby causing the malfunction of the thermal fuse.
Documents of the prior art
Patent document
Patent document 1US4189697
Disclosure of Invention
Problems to be solved
In view of the above, the present invention has been made to solve the above-mentioned problems of the conventional temperature-sensitive particle type thermal fuse, and an object of the present invention is to provide a temperature-sensitive particle type thermal fuse as follows: even if the temperature sensitive particles are not melted in a fixed shape and cannot horizontally support the movable terminal, the movable terminal is stably operated under a predetermined fuse operation condition without being affected by such a phenomenon.
Means for solving the problems
In order to achieve the above object, the present invention provides a temperature-sensitive particle type thermal fuse, comprising: a metal cylindrical case 10 having one open front end and the other closed front end by a bottom wall 12; a first lead L1 electrically connected to bottom wall 12 of case 100 to be electrically connected to case 10; a second lead L2 provided on the case 10 so as to be insulated from the open-side distal end of the case 10 via an insulating bush 80, and including a fixed contact L2a at a distal end inside the case; temperature sensitive particles 30 provided in the lower part of the casing 10 and molded in the form of temperature sensitive particles as follows: keeping a certain height h0 below the set fuse working temperature, and softening or melting above the fuse working temperature; a movable terminal 60 that operates as follows: a fixed contact L2a and the case 10 which are connected to the second lead L2 side and are energized simultaneously when the fuse operating temperature is lower than or equal to the fuse operating temperature, and are separated from the fixed contact L2a when the fuse operating temperature is higher than or equal to the fuse operating temperature; a first spring 20 for applying an elastic force to the movable terminal 60 in a direction in which the movable terminal 60 is brought into contact with a fixed contact point L2a of the second lead L2; and a second spring 70 for applying an elastic force to the movable terminal 60 in a direction of separating the movable terminal 60 from the fixed contact point L2a of the second lead L2,
the temperature-sensitive particle type thermal fuse is characterized in that,
the temperature-sensitive particle type thermal fuse further comprises an annular fixed terminal 40: the ring-shaped fixed terminal 40 has a through hole 1 in the central axis direction, and is fixed to the inner wall 11 of the housing 10 so as to be electrically connected to the housing 10,
the movable terminal 60 includes a movable contact member 50 at a lower end of a second tip 65, and the movable contact member 50 includes: a bottom surface 51 fixed to a lower end of the second front end 65 of the movable terminal 60; and a movable contact piece 53 which extends along the circumferential direction of the bottom surface 51 so as to be gently inclined outward in the radial direction, and whose outer surface is brought into sliding contact with the upper end of the wall surface of the through hole 41 of the fixed terminal 40 along the circumferential direction to form a movable contact.
In the thermal fuse of the present invention, the maximum diameter D53 of the upper end of the movable contact piece 53 is smaller than the dimension of the inner diameter D11 of the housing 10, the movable contact piece 53 does not contact the inner wall 11 of the housing 10, and the maximum diameter D53 is larger than the dimension of the diameter D41 of the through hole 41 of the fixed terminal 40.
With this configuration, when the movable terminal is operated, the movable contact piece is operated by contacting only the upper end of the through hole of the annular fixed terminal without interfering with the inner wall of the housing, and therefore, the operation of the movable contact piece is stabilized.
The movable contact piece 53 is divided into a plurality of pieces arranged at regular intervals in the circumferential direction.
The temperature sensitive particles 30 are placed on the bottom wall 12 of the housing 10, the first spring 20 is supported at its lower end by the upper end of the temperature sensitive particles 30 directly or via a lower support plate 31, and at its upper end by the bottom surface 51 of the movable contact piece 53 directly or via an upper support plate 32.
As described above, the upper tray is interposed between the upper surface of the temperature sensitive particle and the bottom of the movable contact sheet. Accordingly, even when the upper end surfaces of the temperature-sensitive particles are unevenly softened or melted, the movable contact piece is supported flatly by the upper tray, and therefore, it is possible to prevent malfunction due to interference of the movable contact piece with the inner wall of the housing due to inclination.
The fixed contact of the second lead is located inside the insulating bush, so that sparks which may occur at the fixed contact can be prevented. The spring piece of the second spring is provided inside the insulating bush, and one end of the second spring is supported inside the insulating bush. Thus, the second spring is stably operated without being bent.
Effects of the invention
According to the temperature-sensitive particle type thermal fuse of the present invention, the working member such as the movable terminal can be accurately and stably operated under the predetermined fuse operation condition without being affected by dimensional defects or unevenness of important functional members such as the housing and the movable contact piece which are generated in the manufacturing process.
Further, since the allowable range of the functional size of an important functional component such as the movable contact piece is wide, it is possible to reduce the occurrence of a dimensional failure in manufacturing such a component, and to prevent an assembly failure and improve productivity.
Drawings
Fig. 1 is an exploded perspective view of a temperature fuse of the present invention.
Fig. 2 (a) is a combined sectional view of the temperature fuse of the present invention in a range of a normal state before reaching a fuse operating temperature, and (b) is a partially enlarged sectional view showing a combined relationship between the movable terminal and the fixed terminal of the temperature fuse of the present invention.
Fig. 3 is a coupling cross-sectional view of a state (height of temperature sensitive particles h1) before the cutting operation of the thermal fuse of the present invention.
Fig. 4 is a cross-sectional view of the thermal fuse according to the present invention in a cutting operation state.
Fig. 5 is a partially enlarged sectional view illustrating a cutting operation state by steps in the thermal fuse of the present invention, (a) is an enlarged view of a portion "X" of fig. 2, (b) is an enlarged view of a portion "Y" of fig. 3, and (c) is an enlarged view of a portion "Z" of fig. 4.
Fig. 6 is a perspective view showing a coupling relationship between a movable terminal and a fixed terminal forming a movable contact in the temperature fuse of the present invention.
Fig. 7 is a cross-sectional view of the related art, which is a combined cross-sectional view illustrating a state in which the movable terminal of the thermal fuse is tilted in the housing and malfunctions.
Fig. 8 is a cross-sectional view of another embodiment of the present invention, which is a cross-sectional view of the cutting operation.
Fig. 9 is a cross-sectional view of the connector according to another embodiment of the present invention, which is a cross-sectional view of the connector in a cut-off state.
(symbol description)
10: the housing 11: inner side wall
D11: inner diameter 12 of housing: bottom wall
20: first spring L1: first lead wire
L2: second lead line L2 a: fixed contact
S: sealing material 30: temperature-sensitive particles
31: lower tray 32: upper tray
40: fixing terminal 41: through hole
D41: diameter of through hole 42: outer side surface of fixed terminal
50: movable contact member
51: bottom surface D51: diameter of the bottom surface
53: movable contact piece 60: movable terminal
61: main body 62 of movable terminal: first front end
64: the spring piece 65: second front end
70: second spring 80: insulating bush
82: first through hole 83: short protrusion part
84: second hole 85: spring leaf
86: third hole
Detailed Description
Hereinafter, preferred embodiments of the temperature-sensitive particle type thermal fuse according to the present invention will be described in detail with reference to the accompanying drawings.
In describing the present invention, 'up' and 'down' indicating directions and positions are used for convenience of description only, and the scope of the present invention is not limited.
As shown in fig. 1 and 2, the temperature-sensitive particle type thermal fuse according to the present invention includes a metal cylindrical case 10 having one end opened and the other end provided with a bottom wall 12. A first lead L1 is electrically connected to the bottom wall 12 of the case 10, and a second lead L2 is insulated from the case 10 by an insulating bush 80 and fixed to the open-side end of the case 10. The open end of the case 10 at the upper end of the insulating bush 80 is sealed by a sealing material S to prevent foreign substances from penetrating into the inside of the case 10.
The insulating bush 80 is made of an insulating material, and is preferably formed by molding a ceramic material. As shown in fig. 1 and 2, the insulating bush 80 includes: a first through hole 82 provided at an upper portion thereof, through which the second lead L2 passes; and a short projection 83 having a second hole 84 formed below the first through hole 82 and having a diameter relatively larger than that of the first through hole 82 in a direction coaxial with the first through hole 82, so that the head of the second lead L2 is fitted to the short projection 83. In the second lead L2 positioned in contact with the short projection 83, a fixed contact L2a is formed at the bottom, which the first tip 62 of the movable terminal 60 described later comes into contact with and contacts. A third hole 86 having a diameter relatively larger than that of the second hole 84 is formed coaxially below the second hole 84, and a spring piece 85 is formed at a boundary with the second hole 86. In this way, the head of the second lead L2 provided to penetrate the first through hole 82 is attached to the short projection 83, and the fixed contact L2a formed at the bottom of the head of the second lead L2 is disposed inside the insulating bush 80. Thus, when a spark (spark) occurs at the fixed contact L2a where the fixed contact L2a and the movable terminal 60 contact each other, the spark is cut off so that the spark is not transmitted to the outside (housing). Unexplained reference numeral 81 denotes an outer circumferential surface of the insulating bush.
The tip of a movable terminal supporting second spring 70 described later is supported by a short projection 85 formed between the second hole 84 and the third hole 86 of the insulating bush 80.
As shown in fig. 2, a ring-shaped fixed terminal 40 is disposed below the insulating bush 80 with a predetermined gap from the insulating bush 80. The fixed terminal 40 is fixed in a state where the outer side surface 42 is in contact with the inner wall 11 of the housing 10, is electrically energized with the housing 10, and has a through hole 41 having a constant diameter D41 formed in the center axis direction. Preferably, as shown in fig. 2, the inner wall 11 of the housing 10 is provided with a short projection portion which is placed on the edge of the bottom of the fixed terminal 40 and set at a fixed installation position.
A movable terminal 60 is disposed between the second lead L2 insulated from the case 10 and the fixed terminal 40. The movable terminal 60 is simultaneously brought into contact with the fixed contact L2a and the fixed terminal 40 to energize the case 10 and the second lead L2 when the fuse operating temperature is lower than or equal to the fuse operating temperature, and when the ambient temperature reaches the fuse operating temperature, separates from the fixed contact L2a on the second lead L2 side to 'cut off' (cut-off) the energization of the case 10 (i.e., between the first lead L1 and the second lead L2).
In the movable terminal 60, the upper first tip 62 of the body 61 is in contact with or separated from the fixed contact L2a on the second lead L2 side, and the lower second tip 65 is provided with a spring piece 64 for supporting the tip of the second spring 70. The movable contact member 50 is provided at the second distal end 65 of the movable terminal 60. The movable contact member 50 is fixed to the second front end 65 of the movable terminal 60 by engagement or crimping.
The movable contact member 50 includes a movable contact piece 53 that is in sliding contact with an upper end of an inner wall of the through hole 41 of the fixed terminal 40 to form a movable contact.
As shown in fig. 1, 2, and 6, the movable contact piece 53 is joined to the bottom of the movable terminal 60 on the second distal end 65 side at the central bottom surface 51, and extends along the outer periphery of the bottom surface 51 while being gently inclined outward in the radial direction, whereby the outer side surface comes into contact with the upper end of the wall surface of the through hole 41 of the fixed terminal 40 in the circumferential direction to form a movable contact.
As shown in fig. 1, the movable contact piece 53 is formed of a plurality of pieces (fragments) formed at a constant interval in the circumferential direction on the bottom surface 51. However, the movable contact piece 53 is not limited to such a shape, and may be configured in a cup (cup) shape.
The movable contact piece 53 has a maximum diameter (D53) at the upper end relatively smaller than the minimum value of the inner diameter D11 of the housing 10, and a minimum diameter D51 at the lower end relatively smaller than the diameter D41 of the through hole 41 of the fixed terminal 40, in order to form the movable contact.
The case 10 is provided with temperature sensitive particles 30 on the bottom wall 12 side. The temperature-sensitive particles 30 are obtained by molding a temperature-sensitive organic material powder into a particle form, and maintain a particle form having a constant height h0 at or below the operating temperature (fig. 5 (a) and (b)).
The temperature sensitive particles 30 are supported by compressing the first spring 20 disposed between the bottom and the bottom wall 12 of the housing. The temperature sensitive particles 30 are biased in the upward direction (black arrow direction) by the elastic force of the first spring 20, and support the bottom of the movable contact terminal 53 of the movable terminal 60. The lower tray 31 is interposed between the bottom of the temperature sensitive particles 30 and the upper end of the first spring 20. In this case, the elastic force of the first spring 20 uniformly acts on the bottom of the temperature sensitive particle 30, and thus the movable contact piece 53 supported on the temperature sensitive particle 30 can be horizontally supported without being inclined.
Accordingly, when the temperature-sensitive particles 30 are equal to or lower than the fuse operating temperature (the state of (a) and (b) of fig. 5), the movable terminal 60 forms a movable contact point by bringing the outer side surface of the movable contact piece 53 into contact with the upper end of the inner wall of the through hole 41 of the fixed terminal 40 by the elastic force of the second spring 70 acting in the white arrow direction of fig. 2, and at the same time, the upper first tip 62 is brought into contact with the fixed contact point L2a of the second lead L2 by the elastic force of the first spring 20 acting in the black arrow direction by the temperature-sensitive particles 30. In a state of being equal to or lower than the fuse operating temperature, current flows through a path of the second lead L2 → the fixed contact L2a → the movable terminal 60 → the movable contact piece 53 → the movable contact of the fixed terminal 40 → the case 10 → the first lead L1.
When the thermal fuse of the present invention exceeds the normal temperature range and reaches the fuse operating temperature, that is, as shown in fig. 5 (c), at the moment the temperature-sensitive particles 30 soften or melt to the height h2 at the time of fuse operation, the force of the first spring 20 acting on the lower end of the movable terminal 60 toward the upper end (black arrow direction) by the temperature-sensitive particles 30 is smaller than the force of the second spring 70 acting on the movable terminal 60 in the direction (white arrow direction) of separating the movable terminal 60 from the fixed contact L2a of the second lead L2, whereby the movable terminal 60 is moved downward in the white arrow direction by the elastic force of the second spring 70 to be separated from the fixed contact L2a of the second lead L2, thereby performing the fuse cutting operation.
At this time, as shown in fig. 5 (c), since the movable contact piece 53 of the movable terminal 60 passes through the through hole 41 of the fixed terminal 40 and moves downward only in a state of sliding contact with the upper end of the inner wall of the through hole 41 of the fixed terminal 40, the fuse cutting operation is stably performed without interference with the inner wall 11 of the housing 10.
Fig. 8 and 9 show another embodiment of the present invention. This other embodiment changes the relative positions of the temperature sensitive particles 30 and the first spring 20 compared to the previously described embodiment. That is, in another embodiment, the temperature sensitive particles 30 are formed to overlap the bottom wall 12 of the housing 10. The first spring 20 is supported at its lower end by the upper end of the temperature sensitive particle 30 directly or via the lower support plate 31, and at its upper end by the bottom surface 51 of the movable contact piece 53 directly or via the upper support plate 32.
The functions of the temperature sensitive particles and the first spring of the other embodiment are the same as those of the previously described embodiment, and thus, the description thereof is omitted.
According to another embodiment, even if the temperature sensitive particles 30 are melted in an unfixed shape (the melted form is not fixed), the first spring 20 supports the movable contact member 50 at the bottom portion thereof to a certain extent.
Claims (4)
1. A temperature-sensitive particle type thermal fuse having a through hole (41) in a central axis direction, comprising: a metal cylindrical case (10) having one open front end and the other closed front end by a bottom wall (12); a first lead (L1) connected to the bottom wall (12) of the case (100) so as to be electrically connected to the case (10); a second lead (L2) provided on the case (10) so as to be insulated from the open-side distal end of the case (10) via an insulating bush (80), and having a fixed contact (L2a) at the distal end inside the case; temperature-sensitive particles (30) which are provided on the lower part of the housing (10) and are molded into a temperature-sensitive particle form in such a manner that: keeping a certain height (h0) when the fuse working temperature is lower than the specified fuse working temperature, and softening or melting when the fuse working temperature is higher than the specified fuse working temperature; a movable terminal (60) which operates as follows: a fixed contact (L2a) and a housing (10) which are connected to the second lead (L2) side and are energized simultaneously when the fuse operating temperature is lower than or equal to the fuse operating temperature, and the fixed contact (L2a) is separated when the fuse operating temperature is higher than or equal to the fuse operating temperature; a first spring (20) that applies an elastic force to the movable terminal (60) in a direction in which the movable terminal (60) is brought into contact with a fixed contact (L2a) of the second lead (L2); and a second spring (70) for applying an elastic force to the movable terminal (60) in a direction of separating the movable terminal (60) from a fixed contact (L2a) of the second lead (L2),
the temperature-sensitive particle type thermal fuse is characterized in that,
the temperature-sensitive particle type thermal fuse includes an annular fixed terminal (40), the annular fixed terminal (40) is fixed to an inner side wall (11) of the housing (10) in a manner of being electrified with the housing (10),
the movable terminal (60) includes a movable contact member (50) at a lower end of a second tip (65), and the movable contact member (50) includes: a bottom surface (51) fixed to the lower end of the second front end (65) of the movable terminal (60); and a movable contact piece (53) which extends along the circumferential direction of the bottom surface (51) and is gently inclined upward to the outside in the radial direction, and the outer side surface of which is in sliding contact with the upper end of the wall surface of the through hole (41) of the fixed terminal (40) along the circumferential direction to form a movable contact,
the maximum diameter (D53) of the upper end of the movable contact piece (53) is smaller than the inner diameter (D11) of the housing (10), and the maximum diameter (D53) is larger than the diameter (D41) of the through hole (41) of the fixed terminal (40) when the movable contact piece (53) does not contact the inner wall (11) of the housing (10).
2. The temperature-sensitive particle-type thermal fuse according to claim 1,
the movable contact piece (53) is divided into a plurality of pieces arranged at a constant interval along the circumferential direction.
3. The temperature-sensitive particle-type thermal fuse according to claim 1,
the temperature sensitive particles (30) are mounted on the bottom wall (12) of the housing (10),
one end of the first spring (200) is supported directly or via a lower support plate (31) at the upper end of the temperature sensitive particle (30), and the other end is supported directly or via an upper support plate (32) at the bottom surface (51) of the movable contact piece (53).
4. The temperature-sensitive particle-type thermal fuse according to claim 1,
the temperature-sensitive particles (30) support the bottom surface (51) of the movable contact member (50) directly or via an upper tray (32) on the lower side of the fixed terminal (40), and the first spring (20) elastically supports the bottom of the temperature-sensitive particles (30) directly or via a lower tray (31) with respect to the bottom wall (12) of the housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249330.9A CN111105964B (en) | 2018-10-25 | 2018-10-25 | Temperature-sensitive particle type temperature fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249330.9A CN111105964B (en) | 2018-10-25 | 2018-10-25 | Temperature-sensitive particle type temperature fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111105964A true CN111105964A (en) | 2020-05-05 |
| CN111105964B CN111105964B (en) | 2022-07-29 |
Family
ID=70417856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249330.9A Active CN111105964B (en) | 2018-10-25 | 2018-10-25 | Temperature-sensitive particle type temperature fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111105964B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220285891A1 (en) * | 2021-03-03 | 2022-09-08 | Aptiv Technologies Limited | Passive detection of overheating in a power connector |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184300A (en) * | 1985-11-07 | 1987-06-17 | Tachibana Metal Co Ltd | Thermal fuse |
| CN201838538U (en) * | 2010-05-13 | 2011-05-18 | 颜琼章 | Improved conducting strip for thermal fuse |
| WO2012165666A1 (en) * | 2011-05-27 | 2012-12-06 | Lee Jong-Ho | Thermal fuse |
| CN203553081U (en) * | 2013-09-18 | 2014-04-16 | 深圳市伙伴科技有限公司 | Spring used in thermal cutoff, and thermal cutoff |
| CN103946946A (en) * | 2011-11-22 | 2014-07-23 | 恩益禧肖特电子零件有限公司 | Temperature fuse and sliding electrode used in temperature fuse |
| CN104025243A (en) * | 2011-10-31 | 2014-09-03 | Ms泰克比强股份有限公司 | Repeatable fuse for preventing over-current |
| CN203850236U (en) * | 2014-05-28 | 2014-09-24 | 江阴市志翔电子科技有限公司 | Three-spacer thermal fuse |
| CN107437478A (en) * | 2016-05-25 | 2017-12-05 | 东洋电子株式会社 | Temperature-sensitive granular pattern thermal cut-off |
| CN107437479A (en) * | 2016-05-25 | 2017-12-05 | 东洋电子株式会社 | Temperature-sensitive granular pattern thermal cut-off |
| CN207320044U (en) * | 2017-10-24 | 2018-05-04 | 漳州雅宝电子有限公司 | A kind of electrical contact thermal cut-off of novel protected thermo-sensitive material |
| CN108257834A (en) * | 2018-04-14 | 2018-07-06 | 江阴市志翔电子科技有限公司 | Memorial alloy double-safety thermal fuse-link |
-
2018
- 2018-10-25 CN CN201811249330.9A patent/CN111105964B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184300A (en) * | 1985-11-07 | 1987-06-17 | Tachibana Metal Co Ltd | Thermal fuse |
| CN201838538U (en) * | 2010-05-13 | 2011-05-18 | 颜琼章 | Improved conducting strip for thermal fuse |
| WO2012165666A1 (en) * | 2011-05-27 | 2012-12-06 | Lee Jong-Ho | Thermal fuse |
| CN104025243A (en) * | 2011-10-31 | 2014-09-03 | Ms泰克比强股份有限公司 | Repeatable fuse for preventing over-current |
| CN103946946A (en) * | 2011-11-22 | 2014-07-23 | 恩益禧肖特电子零件有限公司 | Temperature fuse and sliding electrode used in temperature fuse |
| CN203553081U (en) * | 2013-09-18 | 2014-04-16 | 深圳市伙伴科技有限公司 | Spring used in thermal cutoff, and thermal cutoff |
| CN203850236U (en) * | 2014-05-28 | 2014-09-24 | 江阴市志翔电子科技有限公司 | Three-spacer thermal fuse |
| CN107437478A (en) * | 2016-05-25 | 2017-12-05 | 东洋电子株式会社 | Temperature-sensitive granular pattern thermal cut-off |
| CN107437479A (en) * | 2016-05-25 | 2017-12-05 | 东洋电子株式会社 | Temperature-sensitive granular pattern thermal cut-off |
| CN207320044U (en) * | 2017-10-24 | 2018-05-04 | 漳州雅宝电子有限公司 | A kind of electrical contact thermal cut-off of novel protected thermo-sensitive material |
| CN108257834A (en) * | 2018-04-14 | 2018-07-06 | 江阴市志翔电子科技有限公司 | Memorial alloy double-safety thermal fuse-link |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220285891A1 (en) * | 2021-03-03 | 2022-09-08 | Aptiv Technologies Limited | Passive detection of overheating in a power connector |
| US11799250B2 (en) * | 2021-03-03 | 2023-10-24 | Aptiv Technologies Limited | Passive detection of overheating in a power connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111105964B (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10153122B2 (en) | Temperature-sensitive pellet type thermal fuse | |
| US8089745B2 (en) | Overvoltage protection element | |
| KR101912094B1 (en) | Switch device and method for manufacturing switch device | |
| US4276532A (en) | Thermal fuse | |
| US20170345603A1 (en) | Temperature-sensitive pellet type thermal fuse | |
| US10256061B2 (en) | Temperature-dependent switching mechanism | |
| CN1199236A (en) | Motor protector device | |
| CN111105964B (en) | Temperature-sensitive particle type temperature fuse | |
| KR101940182B1 (en) | Fuel filter | |
| KR101916851B1 (en) | Temperature sensitive pellet type temperature fuse | |
| US11417483B2 (en) | Power contactor and method for producing a housing body for the power contactor | |
| US4894634A (en) | Switch device | |
| CN101536130A (en) | Connection pot and switch with connection pot | |
| EP3667692B1 (en) | Thermal pellet type thermal fuse | |
| US20050189206A1 (en) | Direct current cutoff switch | |
| JPH0512971A (en) | Thermal responsive switch and surge absorbing circuit using it | |
| KR101849741B1 (en) | Compact protection device for automotive cigar lighter and power outlet | |
| KR20170111204A (en) | Preventing overheating and over-current fuse having dual spring complex | |
| US4127839A (en) | Thermal switch | |
| JP2003297204A (en) | Thermal protector | |
| KR20190113233A (en) | Short circuit fuse with temperature-modifying substance | |
| US10883469B1 (en) | Ignition interrupter and related methods | |
| CN101253592B (en) | Thermal link and method for producing said link | |
| JP3877165B2 (en) | Return delay type protector and electric compressor protection system using the same | |
| KR102481031B1 (en) | Current short-circuit fuse for high voltage with thermally deformable material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |