CN210805618U - Overheat protection hairdryer switch - Google Patents
Overheat protection hairdryer switch Download PDFInfo
- Publication number
- CN210805618U CN210805618U CN201921726076.7U CN201921726076U CN210805618U CN 210805618 U CN210805618 U CN 210805618U CN 201921726076 U CN201921726076 U CN 201921726076U CN 210805618 U CN210805618 U CN 210805618U
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- CN
- China
- Prior art keywords
- fixed column
- bimetallic strip
- hole
- wall
- base
- 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 discloses an overheating protection electric hair drier switch, which comprises a base, wherein a fixed column is formed on the base, the outer wall of the fixed column is transversely provided with an electrode plate, the bottom surface of the electrode plate is connected with the top surface of the base, a first through hole is formed in the electrode plate, the fixed column passes through the first through hole, the outer wall of the fixed column is also provided with a bimetallic strip, the bimetallic strip is arranged above the electrode plate, a second through hole is formed in the bimetallic strip, the fixed column passes through the second through hole, the outer wall of the fixed column is provided with a fixed block, when the bimetallic strip passes through the second through hole, the top surface of the fixed block is propped against the bottom surface of the bimetallic strip, the outer wall of the fixed column is provided with a nut, the nut is arranged above the bimetallic strip, the nut is in threaded fit with the outer wall, the top surface of the electrode plate is inwards bent with a contact groove, and the shape of the contact groove is matched with that of the contact bump.
Description
Technical Field
The utility model belongs to the technical field of the hairdryer and specifically relates to an overheat protection hairdryer switch is related to.
Background
The blower is composed of a group of electric heating wires and a high-speed small fan. When the fan is electrified, the heating wire can generate heat, and the air blown out by the fan passes through the heating wire and is changed into hot air. If only the small fan rotates and the heating wire is not hot, only wind but not heat is blown out. Under the overheated condition of hairdryer, prevent overheated by the overheat protection switch who installs in the hairdryer, traditional overheat protection switch's bimetallic strip does not have spacingly with the contact surface of electrode slice, and the bimetallic strip can warp upwards springing when being heated, and the bimetallic strip warp down after the temperature drops, and the not fine and electrode slice contact of ability when down bending leads to the circumstances of disconnected touching to take place, influences the normal use of hairdryer.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
An overheating protection electric hair drier switch comprises a base, wherein a fixed column is formed on the base, an electrode plate is transversely arranged on the outer wall of the fixed column, the bottom surface of the electrode plate is connected with the top surface of the base, a first through hole is formed in the electrode plate, the fixed column penetrates through the first through hole, a bimetallic strip is further arranged on the outer wall of the fixed column, the bimetallic strip is arranged above the electrode plate, a second through hole is formed in the bimetallic strip, the fixed column penetrates through the second through hole, a fixed block is arranged on the outer wall of the fixed column, the top surface of the fixed block abuts against the bottom surface of the bimetallic strip when the bimetallic strip penetrates through the second through hole, a nut is arranged on the outer wall of the fixed column, the nut is arranged above the bimetallic strip and is in threaded fit with the outer wall of the fixed column, when the nut rotates downwards, the bottom surface of the, the shape phase-match of contact tank and contact lug, when contact lug bounces downwards, contact lug is in the contact tank, and the rightmost end of electrode slice is bent to have the spliced pole, and the top surface shaping of base has the spread groove that is used for the spliced pole, and the top surface of base still is equipped with the lug, and the quantity of lug is two, and the symmetry sets up both ends about the spread groove bottom surface respectively, and the electrode slice bottom surface is being pushed against to the lug top surface.
As a further aspect of the present invention: the base and the fixing column are made of plastics.
As a further aspect of the present invention: the reel of spliced pole has the trip, and the shaping has the fixture block in the spread groove, and when the spliced pole is pegged graft in the spread groove, the trip and fixture block joint.
As a further aspect of the present invention: the inner side surface of the convex block is arc-shaped.
Compared with the prior art, the beneficial effects of the utility model are that: this overheat protection hairdryer switch has increased the contact groove at the terminal top surface that has increased contact lug and electrode slice of bimetallic strip for the contact of bimetallic strip and electrode slice is better, prevents to break the condition of touching and takes place.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the contact bump structure of the present invention.
In the figure: 1. the base, 2, fixed column, 3, electrode slice, 4, first through-hole, 5, bimetallic strip, 6, second through-hole, 7, fixed block, 8, nut, 9, contact lug, 10, contact slot, 11, spliced pole, 12, spread groove, 13, trip, 14, fixture block, 15, lug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, an overheat protection hair dryer switch comprises a base 1, a fixed post 2 formed on the base 1, an electrode plate 3 transversely disposed on an outer wall of the fixed post 2, a bottom surface of the electrode plate 3 connected to a top surface of the base 1, a first through hole 4 formed in the electrode plate 3, the fixed post 2 passing through the first through hole 4, a bimetal 5 disposed on an outer wall of the fixed post 2, the bimetal 5 above the electrode plate 3, a second through hole 6 formed in the bimetal 5, the fixed post 2 passing through the second through hole 6, a fixed block 7 disposed on an outer wall of the fixed post 2, a top surface of the fixed block 7 abutting against a bottom surface of the bimetal 5 when the bimetal 5 passes through the second through hole 6, a nut 8 disposed on an outer wall of the fixed post 2, the nut 8 above the bimetal 5, the nut 8 in threaded engagement with the outer wall of the fixed post 2, when the, contact lug 9 that bimetallic strip 5's end was rolled up, contact lug 9 bottom surface is arc and convex downward, the top surface of electrode slice 3 is incurved and is had contact groove 10, contact groove 10 and contact lug 9 shape phase-match, when contact lug 9 bounces downwards, contact lug 9 is in contact groove 10, the rightmost end of electrode slice 3 is curved and is had spliced pole 11, base 1's top surface shaping has the spread groove 12 that is used for spliced pole 11, base 1's top surface still is equipped with lug 15, lug 15's quantity is two, the symmetry sets up both ends about spread groove 12 bottom surface respectively, lug 15 top surface is pushing against electrode slice 3 bottom surface.
The base 1 and the fixing column 2 are made of plastics.
The connecting column 11 is coiled with a clamping hook 13, a clamping block 14 is formed in the connecting groove 12, and when the connecting column 11 is inserted in the connecting groove 12, the clamping hook 13 is clamped with the clamping block 14.
The inner side surface of the convex block 15 is arc-shaped.
The utility model discloses a theory of operation is: under normal temperature, the bimetallic strip 5 is bent downwards, the contact lug 9 is in the contact groove 10, the circuit is connected, but the temperature is too high, the bimetallic strip 5 deforms and bounces high, the contact lug 9 bounces off, the circuit is short-circuited
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. An overheating protection electric hair drier switch is characterized by comprising a base, wherein a fixed column is formed on the base, an electrode plate is transversely arranged on the outer wall of the fixed column, the bottom surface of the electrode plate is connected with the top surface of the base, a first through hole is formed in the electrode plate, the fixed column penetrates through the first through hole, a bimetallic strip is further arranged on the outer wall of the fixed column, the bimetallic strip is arranged above the electrode plate, a second through hole is formed in the bimetallic strip, the fixed column penetrates through the second through hole, a fixed block is arranged on the outer wall of the fixed column, the top surface of the fixed block abuts against the bottom surface of the bimetallic strip when the bimetallic strip penetrates through the second through hole, a nut is arranged on the outer wall of the fixed column, the nut is in threaded fit with the outer wall of the fixed column, when the nut rotates downwards, the bottom surface, the top surface incurve of electrode slice has the contact tank, contact tank and contact lug's shape phase-match, and when contact lug bounced downwards, contact lug was in the contact tank, and the rightmost end of electrode slice is curved has the spliced pole, and the top surface shaping of base has the spread groove that is used for the spliced pole, and the top surface of base still is equipped with the lug, and the quantity of lug is two, and the symmetry sets up both ends about the spread groove bottom surface respectively, and the electrode slice bottom surface is being pushed against to the lug top surface.
2. The switch of claim 1 wherein the base and the stationary post are made of plastic.
3. The switch of claim 1 in which the connecting post is coiled with a hook, and a detent is formed in the connecting groove, and the hook engages the detent when the connecting post is inserted into the connecting groove.
4. The switch of claim 1 wherein the inner surface of the protrusion is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726076.7U CN210805618U (en) | 2019-10-15 | 2019-10-15 | Overheat protection hairdryer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726076.7U CN210805618U (en) | 2019-10-15 | 2019-10-15 | Overheat protection hairdryer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210805618U true CN210805618U (en) | 2020-06-19 |
Family
ID=71225972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921726076.7U Expired - Fee Related CN210805618U (en) | 2019-10-15 | 2019-10-15 | Overheat protection hairdryer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210805618U (en) |
-
2019
- 2019-10-15 CN CN201921726076.7U patent/CN210805618U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20200619 Termination date: 20201015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |