CN201638772U - Packaging thermal fuse assembly - Google Patents

Packaging thermal fuse assembly Download PDF

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Publication number
CN201638772U
CN201638772U CN2009201585568U CN200920158556U CN201638772U CN 201638772 U CN201638772 U CN 201638772U CN 2009201585568 U CN2009201585568 U CN 2009201585568U CN 200920158556 U CN200920158556 U CN 200920158556U CN 201638772 U CN201638772 U CN 201638772U
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CN
China
Prior art keywords
thermal cut
insulation crust
electric wire
pin
sizing material
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.)
Expired - Lifetime
Application number
CN2009201585568U
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Chinese (zh)
Inventor
谢宏芳
赵长才
周奋耘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Therm O Disc Inc
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Therm O Disc Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Therm O Disc Inc filed Critical Therm O Disc Inc
Priority to CN2009201585568U priority Critical patent/CN201638772U/en
Application granted granted Critical
Publication of CN201638772U publication Critical patent/CN201638772U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a packaging thermal fuse assembly. Without influencing functions of a thermal fuse, a proper insulating casing is designed according to application, pins of the thermal fuse are welded with wires, components after being welded are placed in the insulating casing, proper glue stuff is selected and poured into the insulating casing, and then exposed electrified portions of the welded components are sealed and insulated. Therefore, the thermal fuse is stable and reliable in performance and convenient in installation in various work environments.

Description

Encapsulation thermal cut-off assembly
Technical field
The utility model is the device that is used for the one-time action of ceiling temperature protection and can not resets about a kind of, is a kind of encapsulation thermal cut-off assembly.
Background technology
At present, a kind of thermal cut-off that has live components to expose is usually used in the heat protection function of the equipment of realizing.This in actual applications thermal cut-off is normal to be assembled into the insulation of thermal cut-off assembly with the assurance live components with other accessories.A kind of thermal cut-off modular construction commonly used as shown in Figure 1.Its formation comprises: (1) thermal cut-off, (2) insert spring and terminal cover thereof, (3) inserted sheet, (4) insulation spacer, (5) screw, (6) electric wire.
According to above thermal cut-off assembly commonly used as can be known, because of the thermal cut-off shell is metal and conduction, then may there be following several failure mode in thermal cut-off in application process:
1) the thermal cut-off surface metal is corroded.
2) because of causing thermal cut-off two interpolars, dust deposit and hygrothermal environment puncture.
3) expose between live part and support because of dust deposit and hygrothermal environment and puncture.
4) expose between live part and metal-packaged shell and puncture because of hygrothermal environment.
5) contact is bad between charged link.And used parts are numerous, the assembling process complexity.
The utility model content
Deficiency at existing thermal cut-off assembly commonly used, the utility model provides a kind of encapsulation thermal cut-off assembly, this encapsulation thermal cut-off assembly is sealed among the insulating material live components with insulation, thereby guarantee that thermal cut-off can be applicable in the various operational environments, and it is stable and reliable for performance, easy for installation.
According to one side of the present utility model, a kind of thermal cut-off assembly is provided, comprise thermal cut-off, insulation crust, electric wire and embedding sizing material, it is characterized in that described thermal cut-off is connected in described insulation crust with described electric wire; Described embedding sizing material injects described insulation crust inside, with the coupling part sealed insulation of described thermal cut-off and described electric wire.
According to second aspect of the present utility model, a kind of thermal cut-off assembly is provided, comprise thermal cut-off, insulation crust, electric wire and embedding sizing material, it is characterized in that, comprise a pair of protuberance, in the inside of insulation crust at described insulation crust, outstanding from two sidewall horizontal of insulation crust, described protuberance defines the insertion groove of thermal cut-off, and the guiding thermal cut-off enters the insertion groove; Described thermal cut-off is connected in described insulation crust with described electric wire; Described embedding sizing material injects described insulation crust inside, with the coupling part sealed insulation of described thermal cut-off and described electric wire.
According to the third aspect of the present utility model, a kind of thermal cut-off assembly is provided, comprise thermal cut-off, insulation crust, embedding sizing material and electric wire, described thermal cut-off comprises pin, it is characterized in that the pin and the described electric wire of described thermal cut-off are welded together, described insulation crust comprises a pair of protuberance, inside at insulation crust, outstanding from two sidewall horizontal of insulation crust, described protuberance defines the insertion groove of thermal cut-off, assembly after guiding thermal cut-off and the electric wire welding, enter the insertion groove, described thermal cut-off, the pin of thermal cut-off, and the weld of pin and electric wire, all being positioned at insulation crust inside, described embedding sizing material injects described insulation crust inside, described embedding sizing material is with described thermal cut-off, pin, and the weld sealed insulation of pin and electric wire.
Description of drawings
Fig. 1 is the disconnected device assembly of known hot-melt.
Fig. 2 is the utility model structure chart.
Fig. 3 is the schematic diagram of insulation crust.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Technical scheme:
The utility model scheme is: under the prerequisite that does not influence its thermal fuse function, according to Application Design suitable insulation shell, with thermal cut-off pin and electric wire welding, to weld back part again and put into insulation crust, select for use suitable sizing material to inject insulation crust, to weld back part and expose charged position sealed insulation, thereby guarantee that thermal cut-off is stable and reliable for performance in various operational environments, easy for installation.
The beneficial effects of the utility model: guaranteeing under the situation that thermal cut-off is effectively worked, with thermal cut-off with the encapsulation of suitable plastic cement after, the thermal cut-off anti-adverse environment performance that has live components to expose obviously strengthens, further expand the application of this class thermal cut-off, and compact conformation, stable and reliable for performance, easy for installation.
Application:
The utility model product can be widely used in air-conditioning, refrigerator, water heater, electric cooker, in household electrical appliance such as insulating pot and the various device so that the heat protection to be provided.
Embodiment:
As shown in Figure 2:
1. confirm the specification of thermal cut-off (10) according to application requirements, the striking point temperature is from 70 ℃ to 260 ℃.
2. selecting performance suitable insulation material for use according to the specification of thermal cut-off (10) is raw material, and requires design insulation crust (12) according to application requirements and thermal cut-off assembled.Insulation crust can be plastic shell.The shape and structure of shell includes but not limited to profile shown in Figure 2 and structure.Insulation crust (12) meets following requirement:
2.1 the insulation of insulation crust raw material, heatproof, heat conductivility are good.Raw material includes but not limited to ABS, PPO, PPT, PPS, PP, LCP, PBT, PET.
2.2 it is rational in infrastructure.Size installation requirement and can be mounted fixing when profile satisfy to be used.Internal structure can guarantee the parts after enough spaces are used to install welding, and design proper wall thickness and limit the thermal cut-off position so that reliable heat conduction to be provided, thereby guarantees the thermal cut-off dependable performance.
3. select suitable embedding sizing material (14) for use according to the specification of thermal cut-off (10), embedding sizing material (14) meets following requirement:
3.1 insulation, heatproof, heat conductivility are good.The casting glue material includes but not limited to epoxy resin, organosilicon.
3.2 can under normal temperature or low temperature, solidify.
4. select suitable electric wire (16) for use according to the specification and concrete application of thermal cut-off (10).
5. confirm that welding procedure is reliable.Welding procedure meets following requirement:
5.1 it is firm to weld, and guarantees that solder joint can bear certain mechanical force and electrical property is good.
5.2 welding procedure does not influence the performance of thermal cut-off.
6. the assembling of encapsulation thermal cut-off assembly.
The thermal cut-off pin cut cuts back and electric wire (16) welding, the weld of thermal cut-off (10), thermal cut-off pin and pin and electric wire, formation thermal cut-off assembly (10) expose charged position.With the inner space that the parts after the welding insert insulation crust (12), pour into sizing material (14) again in the inner space of insulation crust (12), after solidifying, sizing material (14) is encapsulation thermal cut-off assembly.In the encapsulation thermal cut-off assembly after finishing, the above-mentioned charged position of exposing is embedded in the sizing material, and sealed insulation, will can not be corroded.Welding reliably provides good electrical properties, can not cause loose contact.The plastic cement of sealing provides excellent protection to thermal cut-off, has reliable withstand voltage insulation property.Overall structure is simply compact, stable and reliable for performance, and easy for installation.
As shown in Figure 3, insulation crust (12) can comprise one, a pair of or a plurality of protuberance (18), and outstanding from the inside level of two sidewalls (20) of insulation crust (12), protuberance (18) defines the insertion groove of thermal cut-off.Assembly after protuberance (18) guiding thermal cut-off and the electric wire welding enters the insertion groove, makes things convenient for the location of the assembly after thermal cut-off and electric wire weld.
The assembly numbering
1 thermal cut-off
2 insert spring and terminal cover thereof
3 inserted sheets
4 insulation spacers
5 screws
6 electric wires
10 thermal cut-ofves
12 insulation crusts
14 embedding sizing materials
16 electric wires
18 protuberances
20 sidewalls

Claims (9)

1. a thermal cut-off assembly comprises thermal cut-off (10), insulation crust (12), electric wire (16) and embedding sizing material (14), it is characterized in that, described thermal cut-off (1) is connected in described insulation crust (12) with described electric wire (16); Described embedding sizing material (14) injects described insulation crust (12) inside, with the coupling part sealed insulation of described thermal cut-off (10) with described electric wire (16).
2. thermal cut-off assembly according to claim 1 is characterized in that described thermal cut-off (10) comprises pin, and the charged position of described pin and described electric wire welds together.
3. thermal cut-off assembly according to claim 1, it is characterized in that comprising embedding sizing material (14), described embedding sizing material (14) injects described insulation crust (12) inside, with the pin of described thermal cut-off (10), thermal cut-off (10), the charged position of electric wire, and the weld sealed insulation at the charged position of pin and electric wire.
4. thermal cut-off assembly according to claim 1, the material that it is characterized in that described embedding sizing material (14) comprise epoxy resin, organosilicon wherein any.
5. thermal cut-off assembly according to claim 1 is characterized in that described insulation crust (12) is a plastic shell.
6. thermal cut-off assembly according to claim 1, the material that it is characterized in that described insulation crust (12) comprise ABS, PPO, PPT, PPS, PP, LCP, PBT and PET wherein any.
7. thermal cut-off assembly according to claim 1, it is characterized in that described insulation crust (12) comprises a pair of protuberance (18), inside at insulation crust, outstanding from two sidewalls (20) level of insulation crust, described protuberance (18) defines the insertion groove of thermal cut-off, and guiding thermal cut-off (10) enters the insertion groove.
8. thermal cut-off assembly, comprise thermal cut-off (10), insulation crust (12), electric wire (16) and embedding sizing material (14), it is characterized in that, comprise a pair of protuberance (18) at described insulation crust (12), inside in insulation crust (12), outstanding from two sidewalls (20) level of insulation crust (12), described protuberance (18) defines the insertion groove of thermal cut-off, guiding thermal cut-off (10) enters the insertion groove; Described thermal cut-off (1) is connected in described insulation crust (12) with described electric wire (16); Described embedding sizing material (14) injects described insulation crust (12) inside, with the coupling part sealed insulation of described thermal cut-off (10) with described electric wire (16).
9. thermal cut-off assembly, comprise thermal cut-off (10), insulation crust (12), embedding sizing material (14) and electric wire (16), described thermal cut-off (20) comprises pin, it is characterized in that the pin and the described electric wire (16) of described thermal cut-off (10) are welded together, described insulation crust (12) comprises a pair of protuberance (18), inside in insulation crust (12), outstanding from two sidewalls (20) level of insulation crust (12), described protuberance (18) defines the insertion groove of thermal cut-off, assembly after guiding thermal cut-off (10) and the electric wire welding, enter the insertion groove, described thermal cut-off (10), the pin of thermal cut-off, and the weld of pin and electric wire, all be positioned at insulation crust (12) inside, described embedding sizing material (14) injects described insulation crust (12) inside, and described embedding sizing material (14) is with described thermal cut-off, pin, and the weld sealed insulation of pin and electric wire.
CN2009201585568U 2009-06-08 2009-06-08 Packaging thermal fuse assembly Expired - Lifetime CN201638772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201585568U CN201638772U (en) 2009-06-08 2009-06-08 Packaging thermal fuse assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201585568U CN201638772U (en) 2009-06-08 2009-06-08 Packaging thermal fuse assembly

Publications (1)

Publication Number Publication Date
CN201638772U true CN201638772U (en) 2010-11-17

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ID=43083277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201585568U Expired - Lifetime CN201638772U (en) 2009-06-08 2009-06-08 Packaging thermal fuse assembly

Country Status (1)

Country Link
CN (1) CN201638772U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020186717A1 (en) * 2019-03-20 2020-09-24 厦门赛尔特电子有限公司 Thermal cutoff

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020186717A1 (en) * 2019-03-20 2020-09-24 厦门赛尔特电子有限公司 Thermal cutoff
US11574787B2 (en) 2019-03-20 2023-02-07 Xiamen Set Electronics Co., Ltd Thermal cutoff

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20101117

CX01 Expiry of patent term