CN208352644U - A kind of recyclable automatic fuse of overheating protection of plug - Google Patents
A kind of recyclable automatic fuse of overheating protection of plug Download PDFInfo
- Publication number
- CN208352644U CN208352644U CN201821124962.8U CN201821124962U CN208352644U CN 208352644 U CN208352644 U CN 208352644U CN 201821124962 U CN201821124962 U CN 201821124962U CN 208352644 U CN208352644 U CN 208352644U
- Authority
- CN
- China
- Prior art keywords
- plug
- protection
- inserted sheet
- bimetal leaf
- recycled
- 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 - Fee Related
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Abstract
The utility model provides a kind of recyclable automatic fuse of overheating protection of plug; including pedestal, upper cover, input inserted sheet and output inserted sheet; the pedestal is equipped with the opening for fixing the input inserted sheet and the output inserted sheet; wherein; it further includes the protective device being embedded in the pedestal that the plug, which is recycled the automatic fuse of overheating protection, and the protective device includes the protection block successively stacked and bimetal leaf.The utility model structure is simple, easy to use, can be widely used in electric system, various electrical equipments and home electric appliance plug as protection device；Protection block and bimetal leaf are bonded overtemperature protection system, have the function that protect electric appliance using bimetal leaf self-characteristic.
Description
Technical field
The utility model relates to a kind of plug protective device, in particular to it is automatic that a kind of plug is recycled overheating protection
Fuse.
Background technique
The connector and electrical appliance bolt, referred to as plug of general electronic products, household AC power plug and socket, have
Rodlike or copper sheet shape pin end outstanding, the power outlet of the female connector type physically inserted with slot or pothole, size
It is to be related to plugs and sockets and converter to use safely, whether meet general interchangeability requirement to avoid one be mistakenly inserted
The hidden danger such as important technology requires, and off-dimension will affect user's use or generate poor contact, be mistakenly inserted, gently then damage equipment
It is bad, it is heavy then fire and electric shock accidents can be generated.And existing jack and plug hold in use due to not having protective device
Vulnerable to heat, and thermal accumlation is generated, most probably initiation fire.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides a kind of plug and is recycled overheating protection melts automatically
Break device, including shell, and the shell has input port and output inserted sheet, wherein the plug is recycled overheating protection certainly
Dynamic fuse further includes being embedded at the intracorporal protective device of the shell, and the protective device includes the protection block that successively stacks and double
Sheet metal, the protection block are three-decker, and the respectively upper insulating layer of the three-decker, conductive layer and lower insulating layer are described
Protection block is provided with the recess through lower end insulating layer and conductive layer, is provided on the bimetal leaf and the recess size phase
Corresponding protrusion, the both ends of the conductive layer are electrically connected with the input port and output inserted sheet respectively, the bimetal leaf
Both ends are also connected with the input port and output inserted sheet respectively.
Further, the input port is used to be additionally provided with elastic metallic with the contact position of the input inserted sheet of extraneous plug and lead
Electric piece.
Further, the output inserted sheet is L-type structure.
Further, the shell includes pedestal and upper cover, and the upper cover lid closes the pedestal and institute on the pedestal
Upper cover is stated as insulation rigid plastics material.
A kind of plug is recycled the application method of the automatic fuse of overheating protection, includes the steps that following:
S1: input port is connect with the input inserted sheet of extraneous plug, and the output inserted sheet and extraneous socket are connected
It connects, the protrusion is contacted with the recess portion, and the protective device is kept to be in energized state；
S2: current overload that the bimetal leaf flows through and make temperature be more than threshold value, the bimetal leaf deforms,
So that the protrusion is separated with the recess portion, the protective device is in an off state；
S3: the temperature of the bimetal leaf is reduced to threshold value hereinafter, the bimetal leaf restores to original state, so that
The protrusion contacts again with the recess portion, and the protective device is restored to energized state.
The utility model has the following beneficial effects: the utility model structure is simple, and it is easy to use, it can be widely used for power train
As protection device in system, various electrical equipments and home electric appliance plug；Protection block and bimetal leaf are bonded overheating protection
Device has the function that protect electric appliance using bimetal leaf self-characteristic；In addition, the utility model can also only disconnect an electricity
Line branch, avoid conventional apparatus fusing battery main switch and caused by harm with it is inconvenient, accomplish single power-off, precisely protection；Most
The utility model can also be directly applied for existing all products afterwards, existing plug need to be only inserted into this product tail portion, then incite somebody to action this
Product is inserted into socket, forms a kind of intermediate conversion element.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the whole schematic cross-sectional view of the utility model；
Fig. 3 is the whole schematic cross-sectional view of another state of the utility model；
Fig. 4 is the circuit connection diagram of the utility model；
Fig. 5 is another status circuit connection schematic diagram of the utility model.
Description of symbols
1, inserted sheet is inputted；11, elastic metallic conductive sheet；12, input port；2, protection block；21, upper insulating layer；22, conductive
Layer；23, lower insulating layer；3, bimetal leaf；31, bending section；32, protrusion；4, inserted sheet, 5, pedestal are exported；6, upper cover.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It please refers to Fig.1 to Fig.3, it includes pedestal that plug provided by the utility model, which is recycled the automatic fuse of overheating protection,
5, upper cover 6, input port and output inserted sheet 2, pedestal 5 and the lid of upper cover 6 close connection, and input port 12 is used for and extraneous plug
Inserted sheet 1 is inputted to connect, and be provided in pedestal 5 respectively with two input ports 12 and two 4 companies of being in contact of output inserted sheet
Connect parallel to each other and two protective devices being independent of each other, for convenience, below only with regard to the structure of a protective device and
Working principle is introduced, and specific as shown in Figure 2 and Figure 3, protective device is up-down structure, including the protection block 2 successively stacked
With bimetal leaf 3.
Protection block 2 is three-decker, and the respectively upper insulating layer 21 of three-decker, conductive layer 22 and lower insulating layer 23 are upper exhausted
Edge layer 21 is contacted with upper cover 6, and lower insulating layer 23 is in contact with bimetal leaf 3, wherein protection block 2 is additionally provided with through lower end
The recess 24 of insulating layer 23 and conductive layer 22, conductive layer 22 are disrupted configuration in the position of recess 24, are provided on bimetal leaf 3
Protrusion 32 corresponding with 24 size and location of recess, and the recess 24 of protection block 2 can be perfect with the protrusion 32 of bimetal leaf 3
It is chimeric.
The present embodiment work when, as shown in Figure 1, firstly, when electric appliance plug and the present apparatus input port connection after,
After two output inserted sheets 4 in the present apparatus are connect with electrical socket again, internal current trend is as shown in Figure 4, Figure 5, wherein figure
4 are in the schematic diagram of connected state for circuit, and Fig. 5 is that circuit is in the schematic diagram for disconnecting blown state, due to bimetal leaf 3
It is series in two plugs as melt, the conductive layer 22 and bimetal leaf 3 in protection block 2 are metal structure, and it is conductive
The both ends of layer 22 and bimetal leaf 3 are in contact with output inserted sheet 4 and input port respectively, so electric current can be respectively from output inserted sheet
4 through in protection block 2 conductive layer 22 and bimetal leaf 3 flow into input port, input port is then inserted with the input of extraneous plug
Piece 1 connects, in the process, when overload current or short circuit current pass through bimetal leaf 3, due to each constituent element in bimetal leaf 3
The thermal expansion coefficient of layer is different, and when temperature change to a certain extent when, the deformation of active layers is greater than the deformation of passive layer, from
And the entirety of bimetal leaf 3 will be to passive layer curving, then the curvature of this composite material changes to generate shape
Become, such as the process of Fig. 2 to Fig. 3, after deformation occurs the bending of bimetal leaf 3, causes protrusion 32 and the protection block 2 of bimetal leaf 3
Recess 24 separate, thus conductive layer 22 recess 24 position formed disrupted configuration and electric current can not be transmitted, and with output
The bimetal leaf 3 that inserted sheet 4 is in contact is also because deformation no longer contacts, thus disconnecting circuit, and after bimetal leaf 3 is cooling,
Can revert to shown in Fig. 2, at this time circuit be in energized state again and can continue to using.In brief, the utility model mentions
The plug of confession is recycled the automatic fuse of overheating protection can be automatic to disconnect energization branch, temperature in the case where excessive heated
After degree is cooling, bimetal leaf can resile, and protection square is pressed go back to original position, makes to protect circuit reusable.
In other embodiments, the upper insulating layer 21 of protection block 2 is with elastic insulated rubber, this setting can be in double gold
Belong to piece 3 deformation occurs and protection block 3 is driven to carry out when moving up effectively and quickly compression, effectively increasing the utility model
Service efficiency；It is facilitated fastening in pedestal 5 preferably, l-shaped is arranged in output inserted sheet 4；Preferably, elastic metallic conductive sheet 11
The input inserted sheet 1 of different length can be effectively ensured by, which being arranged, can carry out energization connection with the utility model, when input inserted sheet 1 compared with
In short-term, since 11 length of elastic metallic conductive sheet is longer, input inserted sheet 1 can be contacted directly by elastic metallic conductive sheet 11,
When input inserted sheet 1 is longer, then extruding contact can be carried out to elastic metallic conductive sheet 11 by inputting inserted sheet 1, be effectively ensured
Longer input inserted sheet 1 will not expose and contingency caused by pedestal outer end.
The utility model has the following characteristics that
1. previous fuse is by disconnecting the total lock of power supply, and the utility model is to disconnect the branch that uses of electric appliance；
2. the utility model can be after " fusing ", and installation makes again after waiting electric wire cooling compared with previous fusible link
With achieving the effect that simple and easy to do can be recycled；
3. the utility model structure is simple, easy to use, electric system, various electrical equipments and household electric can be directly used for
As intermediate protection device in device plug.
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, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with power
Subject to the protection scope that benefit requires.
Claims (4)
1. a kind of plug is recycled the automatic fuse of overheating protection, including shell, the shell has input port and output
Inserted sheet, which is characterized in that it further includes being embedded at the intracorporal guarantor of the shell that the plug, which is recycled the automatic fuse of overheating protection,
Protection unit, the protective device include the protection block successively stacked and bimetal leaf, and the protection block is three-decker, and described three
Layer structure is respectively that upper insulating layer, conductive layer and lower insulating layer, the protection block are provided with through lower end insulating layer and conductive layer
Recess, be provided with protrusion corresponding with the recess size on the bimetal leaf, the both ends of the conductive layer respectively with
The input port and output inserted sheet electrical connection, the both ends of the bimetal leaf also respectively with the input port and export inserted sheet
It is connected.
2. plug according to claim 1 is recycled the automatic fuse of overheating protection, which is characterized in that the input terminal
Contact position of the mouth for the input inserted sheet of extraneous plug is additionally provided with elastic metallic conductive sheet.
3. plug according to claim 1 is recycled the automatic fuse of overheating protection, which is characterized in that the output is inserted
Piece is L-type structure.
4. plug according to claim 1 is recycled the automatic fuse of overheating protection, which is characterized in that the shell packet
Pedestal and upper cover are included, the upper cover lid closes on the pedestal, and the pedestal and the upper cover are insulation rigid plastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124962.8U CN208352644U (en) | 2018-07-16 | 2018-07-16 | A kind of recyclable automatic fuse of overheating protection of plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124962.8U CN208352644U (en) | 2018-07-16 | 2018-07-16 | A kind of recyclable automatic fuse of overheating protection of plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352644U true CN208352644U (en) | 2019-01-08 |
Family
ID=64905909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821124962.8U Expired - Fee Related CN208352644U (en) | 2018-07-16 | 2018-07-16 | A kind of recyclable automatic fuse of overheating protection of plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103708A (en) * | 2018-07-16 | 2018-12-28 | 河北科技大学 | A kind of plug is recycled the automatic fuse of overheating protection and its application method |
-
2018
- 2018-07-16 CN CN201821124962.8U patent/CN208352644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103708A (en) * | 2018-07-16 | 2018-12-28 | 河北科技大学 | A kind of plug is recycled the automatic fuse of overheating protection and its application method |
| CN109103708B (en) * | 2018-07-16 | 2024-04-05 | 河北科技大学 | Automatic fuse with recyclable overheat protection function for electric plug and use method of automatic fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190716 |