CN208954925U - A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection - Google Patents
A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection Download PDFInfo
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- CN208954925U CN208954925U CN201821687453.6U CN201821687453U CN208954925U CN 208954925 U CN208954925 U CN 208954925U CN 201821687453 U CN201821687453 U CN 201821687453U CN 208954925 U CN208954925 U CN 208954925U
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- static contact
- shell
- link
- thermal fuse
- bimetal leaf
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Abstract
The utility model discloses a kind of thermal fuse-links of twin-stage overtemperature and overcurrent protection, including the first pin, second pin, static contact support, static contact, bimetal leaf, shell, movable contact, organic matter briquetting, guide post, spring, spring strut, bimetal plate bracket and sealing resin；The interior of shell installation settings has static contact support, is provided with static contact on the static contact support；First pin one end is inserted into shell, and is in electrical contact and is linked together by spot welding mode with static contact.The utility model not only can repeat disconnecting circuit when electrical equipment reaches the level-one break-off signal of setting, it can also be in electrical equipment overheating, reach second level break-off signal, need when permanent shut-down circuit disposably, safely cut off circuit, eliminate the hidden danger that electrical equipment temperature anomaly is increased and caught fire, working method is novel, it is structurally reasonable, product cost is high, and safety is good, has stronger promotional value and use value.
Description
Technical field
The utility model belongs to thermal fuse-link field, the thermal fuse-link of specifically a kind of twin-stage overtemperature and overcurrent protection.
Background technique
Organic type thermal fuse-link is also organic type Thermal Cutoffs, is a kind of disposable overheat protector device, it
The products such as electronic circuit, electric appliance can be incuded because of the mid-winter generated under abnormal state, it is dynamic to reach its design in abnormal temperature
Make to cut off circuit when temperature, to avoid the generation of fire.Common electrical equipment in daily life, as hair dryer, electric cooker,
Electric heater, electric iron, micro-wave oven, coffee machine, motor, kettle etc. are led when equipment internal current is abnormal or fever is abnormal
When causing machine temperature mid-winter, organic type thermal fuse-link can automatically cut off electric current, prevent temperature excessively high and damage equipment zero
Part, or even cause fire.But organic type thermal fuse-link is disposable disconnection device；Cause when in electrical equipment or circuit
When the factor of overheating is contingency, a sexual factor, organic type thermal fuse-link is disconnected after electrical equipment mid-winter
It will lead to equipment not being available；Meanwhile the work for replacing organic type thermal fuse-link is professional very strong with specific aim, it is only professional
Maintenance personal simultaneously configures appropriate tool and could operate, and influences the repair rate of electrical equipment
And failure rate.The utility model exactly solves this practical problem and designs.
Common electrical equipment, such as hair dryer, electric cooker, kettle, coffee machine electrical equipment are commonly installed one pair
Sheet metal can reset temperature controller and an organic matter thermal fuse-link disposably to fuse.Bimetal strip thermostat is used to set when electricity consumption
It is standby to reach level-one operating temperature, as kettle, coffee machine institute holding liquid boiling point when, bimetal leaf kick, thus disconnecting circuit,
Electrical equipment stops heating；When containing the liquid such as boiled water, coffee again or after Temperature fall, bimetallic temperature is down to reply
After temperature, bimetal leaf kick is compound, and circuit recloses, and electrical equipment can resume work again.What is disposably fused is organic
Object thermal fuse-link is commonly used in when the bimetal leaf of electrical equipment is abnormal, can not kick disconnecting circuit or other critical failures, lead
Electric equipment of applying persistently overheating, more than the operating temperature of bimetal leaf, the two-step action temperature for reaching electrical equipment design (has
The fusing-off temperature of machine object briquetting) when, the fusing of organic matter briquetting, the permanent disconnecting circuit of organic matter thermal fuse-link, to avoid electricity consumption
Equipment further heats up, and prevents constant temperature from rising the possibility for leading to fire.Bimetallic temperature controller+organic matter thermal fuse-link double base
The scheme of device protection is the safety for preventing fever electrical equipment, prevents fever electrical equipment from occurring to be made that weight in terms of fire
The contribution wanted, and the mainstream safeguard protection mode of electrical equipment at present.But bimetallic temperature controller+organic matter thermal fuse-link is double
The production and processing technology complexity of component protection scheme, high production cost, when installing and using because temperature controller and organic matter hot melt are disconnected
Body installation
Position difference causes the asynchronous case for causing overheat protector failure of temperature-sensitive also persistently to occur.
Utility model content
The utility model is to solve above-mentioned bimetallic temperature controller+organic matter thermal fuse-link dual-element protection scheme production and processing
Complex process, high production cost, these pressing problems that manufacturing enterprises face such as temperature-sensitive is asynchronous when installing and using；One kind is provided
The thermal fuse-link of twin-stage overtemperature and overcurrent protection not only reduces the complex process program of manufacturing enterprise, reduces the production of manufacturing enterprise
Cost, moreover it is possible to promote the temperature-sensitive consistency of bimetallic and organic matter fuse-link, promote the technical level of fever electrical equipment；To
The market competitiveness for promoting fever manufacturing enterprise is conducive to the further development and growth of China's manufacturing industry.
In order to solve the problem above-mentioned the utility model use technology and method it is as follows:
A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection, including the first pin, second pin, static contact support, stationary contact
Piece, bimetal leaf, shell, movable contact, organic matter briquetting, guide post, spring, spring strut, bimetal plate bracket and sealing resin；
The interior of shell installation settings has static contact support, is provided with static contact on the static contact support；Described
One pin one end is inserted into shell, and is in electrical contact and is linked together by spot welding mode with static contact；Described second pin one end
It is inserted into shell, and is in electrical contact and is linked together by spot welding mode with bimetal plate bracket；The static contact and bimetal leaf
It is electrically connected by machine riveting mode, described bimetal leaf one end bottom is provided with movable contact, and the bimetal leaf is logical
It crosses machinery and is provided with a reclinate radian, the bimetal leaf is electrically connected by movable contact with static contact；Double gold
The other end for belonging to piece is electrically connected with bimetal plate bracket by mechanical welding manner, the bimetal plate bracket and second
Pin is in electrical contact by spot welding mode and is linked together；The guide post is mounted on bimetal plate bracket bottom, described to lead
One organic matter briquetting of installation settings inside column；The spring strut is installed in the spring strut hole of shell, the organic matter pressure
Block and spring strut bracket compression installation settings have spring；The oral area of the shell and spring strut hole are provided with sealing resin.
Further, the operating temperature range of the bimetal leaf is 50 DEG C -200 DEG C.
Further, the spring strut is surrounded by multiple buckles, the spring fixed by snap for being installed on shell
Pillar mounting hole.
Further, the guide post is surrounded by multiple buckles, fixed by snap to be installed on leading for bimetal plate bracket
Column mounting hole.
Further, the operating temperature range of the organic matter briquetting is 73 DEG C -257 DEG C.
Further, the shell is using PPS, PPE high temperature resistant, the good plastics of insulation performance or insulation, heating conduction
Good aluminum oxide ceramic material or the good bakelite material of insulating properties.
Further, the operating temperature of the bimetal leaf is usually less than the operating temperature of organic matter briquetting, and the temperature difference can
It is adjusted according to the level-one operating temperature of electrical equipment, two-step action temperature.
Organic matter briquetting and bimetal leaf are installed together by the utility model.When electrical equipment is because of abnormal cause such as outlet air
Mouthful by wall, dress ornament block and mid-winter or flow through bimetal leaf electric current be more than rated current and generate heat, reach bimetallic
(we term it first kind exceptions, and break-off signal at this time is level-one movement temperature when the first order abnormal temperature point of piece setting
Degree), bimetal leaf acts and cuts off circuit；After the abnormal cause of electrical equipment releases, the cooling of electrical equipment natural cooling reaches
To bimetal leaf design recovery temperature when, electrical equipment is restored normally, to work normally again.When electrical equipment is because serious different
Often, such as motor rotation blockage, heat-generating disc be abnormal, (we term it two classes exceptions, at this time disconnected for electrical equipment short circuit and mid-winter
Opening temperature is two-step action temperature), when reaching the first order abnormal temperature of bimetal leaf setting, bimetal leaf acts and cuts off electricity
Road；But after bimetal leaf cooling recloses circuit, catastrophe failure is not released, and abnormal temperature continues to rise, and reaches organic
When two-step action temperature (operating temperature of organic matter briquetting) of object briquetting setting, organic matter briquetting melts and permanently disconnects electricity
Road prevents the possibility of fire to protect electrical equipment.
The utility model not only can repeat disconnecting circuit when electrical equipment reaches the level-one break-off signal of setting, moreover it is possible to
In electrical equipment overheating, reach second level break-off signal, needs disposably, safely to cut off when permanent shut-down circuit electric
The hidden danger that electrical equipment temperature anomaly is increased and caught fire is eliminated on road.The thermal cut-off of twin-stage protection can greatly reduce electricity consumption and set
The complex process degree of standby production cost, reduction electrical equipment, promotes the temperature-sensitive consistency of electrical equipment, promotes electrical equipment
The market competitiveness.The thermal cut-off working method of this twin-stage protection is novel, structurally reasonable, and product cost is high, and safety is good,
With stronger promotional value and
Use value.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings；
Fig. 1 is forward sight structural schematic diagram of the utility model when bimetal leaf and not operating organic matter briquetting.
Fig. 2 is overlooking structure diagram of the utility model when bimetal leaf and not operating organic matter briquetting.
Fig. 3 is structural schematic diagram of the utility model when bimetal leaf acts, but organic matter briquetting is not operating；
Fig. 4 is structural schematic diagram of the utility model when bimetal leaf and organic matter briquetting act；
Fig. 5 is the structural schematic diagram of the utility model guide post；
Fig. 6 is the structural schematic diagram of the utility model spring strut.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define；
As shown in figures 1 to 6, a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection of technical solutions of the utility model includes first
Pin 11, second pin 12, static contact support 13, static contact 14, bimetal leaf 15, shell 16, movable contact 17, organic matter briquetting
18, guide post 19, spring 20, spring strut 21, bimetal plate bracket 22 and sealing resin；
The 16 inside installation settings of shell has static contact support 13, is provided with static contact on the static contact support 13
14；In first pin, 11 one end insertion shell 16, and it is in electrical contact and is linked together by spot welding mode with static contact 14；Institute
It states in 12 one end of second pin insertion shell 16, and is in electrical contact and is linked together by spot welding mode with bimetal plate bracket 22；
The static contact 14 is electrically connected with bimetal leaf 15 by machine riveting mode, 15 one end bottom of bimetal leaf
It is provided with movable contact 17, the bimetal leaf 15 is provided with a reclinate radian, the bimetal leaf 15 by machinery
It is electrically connected by movable contact 17 with static contact 14；The other end and bimetal plate bracket 22 of the bimetal leaf 15 pass through mechanical welding
The mode of connecing is electrically connected, and the bimetal plate bracket 22, which is in electrical contact with second pin 12 by spot welding mode, is connected to one
It rises；The guide post 19 is mounted on 22 bottom of bimetal plate bracket, 19 inside installation settings of guide post, the one organic matter pressure
Block 18；The spring strut 21 is installed in the spring strut hole of shell 16, the organic matter briquetting 18 and spring strut 21
Frame compression installation settings has spring 20；The oral area of the shell 16 and spring strut hole are provided with sealing resin.
The operating temperature range of the bimetal leaf 15 is 50 DEG C -200 DEG C.
The spring strut 21 is surrounded by multiple buckles, the spring strut peace fixed by snap for being installed on shell 16
Fill hole.
The guide post 19 is surrounded by multiple buckles, the guide post installation fixed by snap for being installed on bimetal plate bracket 22
Hole.
The operating temperature range of the organic matter briquetting 18 is 73 DEG C -257 DEG C.
The shell 16 is using PPS, PPE high temperature resistant, the good plastics of insulation performance or insulation, heating conduction good three
Al 2 O ceramic material or the good bakelite material of insulating properties.
The operating temperature of the bimetal leaf 15 is usually less than the operating temperature of organic matter briquetting 18, the temperature difference can according to
The level-one operating temperature of electric equipment, two-step action temperature are adjusted.
For the thermal fuse-link of second class protection, organic type thermal fuse-link can be, be also possible to alloy-type thermal fuse-link.
First pin 11 is in electrical contact with static contact 14 by modes such as spot welding and is linked together by the utility model, is not only led
Electrical property is good, also has good mechanical performance；The movable contact 17 is electrically connected with bimetal leaf 15 by modes such as machine rivetings
It is connected together, the bimetal leaf 15 is electrically connected with bimetal plate bracket 22 by mechanical welding manner；Bimetal leaf
Bimetal leaf is not only electrically connected by bracket 22, is also fixed 15 one end of bimetal leaf using bimetal plate bracket 22；Double gold simultaneously
Belong to piece 15 by mechanical shaping, there is a reclinate radian, with ensure movable contact 17 with static contact 14 is good is electrically connected；
The bimetal plate bracket 22, which is in electrical contact with second pin 12 by modes such as spot welding, to link together, and not only electric conductivity is good
It is good, also have good mechanical performance；The guide post 19 is installed on bimetal plate bracket 22, and an organic matter is installed inside guide post 19
Briquetting 18；The spring strut 21 is installed in the spring strut hole of shell 16, and the compression of spring 20 is installed on organic matter pressure
Between block 18 and spring strut 21；And 16 oral area of shell and spring strut hole are sealed using sealing resin；When twin-stage protection
After thermal fuse-link ambient temperature reaches the operating temperature of bimetal leaf design, the upward kick of bimetal leaf, so that movable contact
It disconnects and contacting with static contact, thus disconnecting circuit；When the thermal fuse-link ambient temperature reduction of twin-stage protection, reach bimetallic
When the reset temperature of piece design, the downward kick of bimetal leaf, movable contact and static contact contact again, and circuit restores conducting；When with
Electric equipment is because aging or other failures cause its temperature rise to be more than the design temperature of bimetal leaf, and mid-winter is to organic matter briquetting
Design temperature, electrical equipment occur mortality can not retrieve failure when, organic matter briquetting experiences the fatal of electrical equipment
Temperature rise and melt, spring is released, and movable contact and static contact on bimetal leaf is pushed permanently to disconnect, and avoids electrical equipment
It further heats up, eliminates kindling hidden danger；The thermal fuse-link of this twin-stage protection both can guarantee that electrical equipment such as hair dryer, kettle existed
It is reclosed after disconnecting circuit, electrical equipment cooling when reaching the level-one operating temperature such as boiled boiled water of design and restores normal function
Can, and can be in electrical equipment mid-winter due to failure, permanent shut-down circuit guarantees the safety of electrical equipment.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, any change or replacement expected without creative work be should be covered within the scope of the utility model,
Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection, which is characterized in that including the first pin (11), second pin
(12), static contact support (13), static contact (14), bimetal leaf (15), shell (16), movable contact (17), organic matter briquetting
(18), guide post (19), spring (20), spring strut (21), bimetal plate bracket (22) and sealing resin；
The internal installation settings of the shell (16) has static contact support (13), is provided with static contact on the static contact support (13)
(14)；In first pin (11) one end insertion shell (16), and it is in electrical contact and is connect by spot welding mode with static contact (14)
Together；In second pin (12) one end insertion shell (16), and pass through spot welding mode electricity with bimetal plate bracket (22)
It connects together；The static contact (14) is electrically connected with bimetal leaf (15) by machine riveting mode, described
Bimetal leaf (15) one end bottom is provided with movable contact (17), and the bimetal leaf (15) is provided with one by machinery and is turned under
Bent radian, the bimetal leaf (15) are electrically connected by movable contact (17) with static contact (14)；The bimetal leaf (15)
The other end is electrically connected with bimetal plate bracket (22) by mechanical welding manner, and the guide post (19) is mounted on double
On metal plate rack (22) bottom, the guide post (19) one organic matter briquetting (18) of internal installation settings；The spring strut
(21) it is installed in the spring strut hole of shell (16), the organic matter briquetting (18) and the compression installation of spring strut (21) bracket
It is provided with spring (20)；The oral area of the shell (16) and spring strut hole are provided with sealing resin.
2. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the bimetal leaf
(15) operating temperature range is 50 DEG C -200 DEG C.
3. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the spring strut
(21) be surrounded by multiple buckles, the spring strut mounting hole fixed by snap for being installed on shell (16).
4. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the guide post (19)
It is surrounded by multiple buckles, the guideing pillar mounting hole fixed by snap for being installed on bimetal plate bracket (22).
5. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the organic matter pressure
The operating temperature range of block (18) is 73 DEG C -257 DEG C.
6. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the shell (16)
Using PPS, PPE high temperature resistant, the plastics of insulation performance or insulation, the aluminum oxide ceramic material of heating conduction or insulating properties
Bakelite material.
7. a kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection as described in claim 1, it is characterised in that: the bimetal leaf
(15) operating temperature is lower than the operating temperature of organic matter briquetting (18), and the temperature difference can act temperature according to the level-one of electrical equipment
Degree, two-step action temperature are adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821687453.6U CN208954925U (en) | 2018-10-18 | 2018-10-18 | A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821687453.6U CN208954925U (en) | 2018-10-18 | 2018-10-18 | A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208954925U true CN208954925U (en) | 2019-06-07 |
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ID=66741942
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821687453.6U Active CN208954925U (en) | 2018-10-18 | 2018-10-18 | A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208954925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087835A (en) * | 2018-10-18 | 2018-12-25 | 漳州雅宝电子有限公司 | A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection |
-
2018
- 2018-10-18 CN CN201821687453.6U patent/CN208954925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087835A (en) * | 2018-10-18 | 2018-12-25 | 漳州雅宝电子有限公司 | A kind of thermal fuse-link of twin-stage overtemperature and overcurrent protection |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: No.6, Hongjian Road, jiaomei Town, commercial investment zone, Zhangzhou City, Fujian Province, 363000 Patentee after: Zhangzhou Yabao Electronics Co.,Ltd. Address before: 363007 Hongjian Industrial Zone, Longchi Development Zone, Zhangzhou City, Fujian Province Patentee before: ZHANGZHOU YABAO ELECTRONIC Co.,Ltd. |