CN107883434A - Safety switch for electric heater and electric heater - Google Patents
Safety switch for electric heater and electric heater Download PDFInfo
- Publication number
- CN107883434A CN107883434A CN201711339651.3A CN201711339651A CN107883434A CN 107883434 A CN107883434 A CN 107883434A CN 201711339651 A CN201711339651 A CN 201711339651A CN 107883434 A CN107883434 A CN 107883434A
- Authority
- CN
- China
- Prior art keywords
- arm
- force
- trigger
- electric heater
- safety switch
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000013021 overheating Methods 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
Abstract
A safety switch for an electric heater, comprising: a trigger unit; the switch unit is connected to the heating circuit of the electric heater in series and is in a normally closed state; the trigger unit triggers the switch unit to be switched off when being acted by external force. According to the electric heater provided by the invention, the safety switch is arranged on the outer side of the heating surface of the electric heater, so that when abnormal covering occurs on the outer side of the heating surface, a heating circuit can be timely and effectively disconnected through the safety switch, and the overheating phenomenon and fire hazard caused by covering of the electric heater are avoided.
Description
Technical field
The present invention relates to heating system technical field, and in particular to a kind of electric heater safety switch and electric heater.
Background technology
Electric heater as winter, easily increasingly popularize by warming appliance, the area for lacking central heating in the winter time, except
It is outer for heating of house resisting cold, it is also commonly used for drying clothing etc. in clammy weather, but due to the working characteristics of itself, such as user
Clothes etc., is directly covered on electric heater by improper use, easily causes electric heater to overheat and trigger fire.
Existing warmer typically remotely sets one by the upper space in heating unit assembly between air outlet
Or multiple thermal circuit berakers control warmer temperature rise, but generally thermal circuit beraker using bimetal leaf as the temperature module.Work as electrical equipment
During normal work, bimetal leaf is in free state, and when temperature reaches operating temperature, bimetal leaf expanded by heating produces deformation
Contact is caused to disconnect, so as to play temperature control function.But it needs the process of expanded by heating deformation due to bimetal leaf, therefore instead
Answer not sensitive enough and cutoff action not rapid enough, it is impossible to the power supply of cut-out heating unit assembly in time.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome electric heater of the prior art to prevent clothing from covering
The defects of lid, so as to provide a kind of electric heater safety switch and electric heater.
Therefore, technical scheme is as follows；
A kind of electric heater safety switch, it includes：
Trigger element；
And switch element, the switch element are concatenated to the heating circuit of the electric heater, and it is in normally off；Institute
State and the switch element disconnection is triggered when trigger element is acted on by external force.
Further, the trigger element is included by the arm of force, the trigger arm being attached thereto, and reset unit, it is described by
The housing hinge of the arm of force and electric heater connects, and the trigger arm compresses the switch element in the presence of the reset unit,
The switch element is in normally off, made the trigger arm away from the switch element by external force effect by the arm of force when described
When, trigger the switch element and disconnect.
Further, it is described to be provided with support by the arm of force, it is described to be cut with scissors by the arm of force by the support and the housing
Connect.
Further, it is described to be provided with support by the arm of force and the trigger arm junction, it is described to be passed through the branch by the arm of force
Bearing portion and the housing hinge.
Further, it is described vacantly to be set by the relatively described housing in the one end of the arm of force away from the trigger arm.
Further, described by the arm of force is arch bar, one end activity insertion institute by the arm of force away from the trigger arm
State housing.
Further, the support includes the bearing being arranged on the housing, and the company being connected with the bearing
Spindle, trigger element and the bearing described in the connection axis connection.
Further, the reset unit is torsion spring, an end arms of the torsion spring and the bearing clamping, the torsion spring
Another end arms and the trigger element clamping.
Further, the switch element is microswitch.
A kind of electric heater, it includes：
Housing, there is heating face；
Heat generating component, the heat generating component are placed in the housing, and the heat generating component produces heat energy after being powered；
Also include the safety switch described in any of the above-described, the safety switch is concatenated to the hair for controlling the heat generating component
In heater circuit；The position for bearing external force of wherein described trigger element is on the outside of the heating face.
Further, the housing includes host shell and connected top cover, and the heating face is arranged on the top
Cover.
Technical solution of the present invention, have the following advantages that：
1. electric heater safety switch provided by the invention, because it is arranged on the outside of the heating face of electric heater, and safety
Switch includes the microswitch that concatenate with heating circuit, and triggers the trigger arm of microswitch and by the arm of force, and stress unit
The outside in the heating face of being directly arranged at, therefore when heating face outside is covered extremely by user, can be triggered by being linked by the arm of force
Arm triggering microswitch disconnects, and to cut off the electric current of heater circuit in time, it is hidden to avoid the fire that electric heater occurs by overheat
Suffer from.
2. electric heater provided by the invention, due to being provided with above-mentioned safety switch on the outside of the heating face of electric heater, therefore
When occurring abnormal covering on the outside of the face of heating, you can by above-mentioned safety switch in time, effectively disconnect heating circuit, avoid electricity
Warmer superheating phenomenon caused by because of covering and disaster hidden-trouble.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the electric heater of the present invention；
Fig. 2 is the exploded perspective view of the electric heater shown in Fig. 1；
Fig. 3 is the structural representation of the top cover shown in Fig. 1；
Fig. 4 is the close-up schematic view shown in circle in Fig. 3；
Fig. 5 is the upward view shown in Fig. 4；
Fig. 6 is the trigger element normal condition schematic diagram in the present invention；
Fig. 7 is the close-up schematic view shown in circle in Fig. 6；
Fig. 8 is the view when trigger element in the present invention is acted on by external force；
Fig. 9 is the close-up schematic view shown in circle in Fig. 8.
Description of reference numerals：
1- host shells；2- top covers；3- trigger elements；31- is by the arm of force；32- trigger arms；33- torsion springs；4- microswitches；
51- bearings；52- connecting shafts；6- heating components；7- heatings face.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The invention discloses a kind of electric heater, and as shown in Figure 1-2, it includes housing, heat generating component and is serially connected in heating electric
Safety switch on road.Housing wherein in the present embodiment (only illustrates part host shell, is including host shell 1 in figure
It is easy to understand internal structure and removes the housing of fore-and-aft direction) and connected top cover 2, heating face 7 is provided with top cover 2,
Heat generating component 6 is provided with host shell 1, heat generating component 6 is connected with heating circuit, and heat generating component 6 produces heat energy after being powered.Wherein
The electric heater of the present invention is by electrified regulation and discharges the device of heat energy, such as electric oil heater, fast hot stove formula electric heater and electricity
Hot diaphragm type electric heater etc..
As Figure 2-3, electric heater safety switch of the invention, it is arranged at the outside in the heating face 7 on top cover 2,
The top in the heating face of being preferably disposed on.It mainly includes trigger element 3 and switch element, and wherein switch element uses microswitch
4.Microswitch 4 is concatenated to the heating circuit of electric heater, and microswitch 4 is in normally off, and electric heater can normal power-up hair
Heat；It can trigger microswitch 4 when trigger element 3 is acted on by external force to disconnect, now heating circuit is in off state, electric heating
Device no power stops heating work.Wherein push-button switch, door switch or induction switch can be selected in microswitch 4.
As in Figure 3-5, trigger element 3 of the invention is included by the arm of force 31, the trigger arm being attached thereto 32, and resets
Unit.Trigger arm 32 in the present embodiment and setting is integrated by the arm of force 31, certainly or the split settings that interconnect
Two parts, only need to meet by the arm of force 31 can to trigger arm 32 transmit power.In the present embodiment is arch bar by the arm of force 31,
Referring to Fig. 3,6 and 8, in by one end activity insertion top cover 2 of the arm of force 31 away from trigger arm 32, wherein by the arm of force 31 and trigger arm 32
Square rod-like structure can be used, either circular rod-shaped configuration or flat structure；It can be used by the arm of force 31 and trigger arm 32
Metal or plastic material are made.The reset unit of the present embodiment is torsion spring 33.
As illustrated in figures 4-5, support is provided with by the arm of force 31 and the junction of trigger arm 32 in the present embodiment, is passed through by the arm of force 31
Support is be hinged with top cover 2, is vacantly set with respect to top cover 2 by the one end of the arm of force 31 away from trigger arm 32.It is used to hold by the arm of force 31
Trigger arm 32 is passed to by external force, and by external force, trigger arm 32 compresses microswitch 4 in the presence of torsion spring 33, opens fine motion
Close 4 and be in normally off, when being made trigger arm 32 away from microswitch 4 by external force effect by the arm of force 31, triggering microswitch 4 is disconnected
Open.Being in by the arm of force 31 on the outside of heating face of external force is wherein born, because heating face is arranged at the top of top cover in the present embodiment,
Therefore it is preferably the top for being arranged at top cover 2 by the arm of force 31.
As shown in figure 5, support includes the bearing 51 being arranged on top cover 2, and the connecting shaft 52 being connected with bearing 51,
Connecting shaft 52 connects trigger element and bearing 51；One end arms of torsion spring 33 and the clamping of bearing 51, another end arms of torsion spring 33 is with touching
Send out the clamping of arm 32.When being acted on by external force, pushed by the arm of force 31, lifted on trigger arm 32, microswitch 4 is off；When
After external force disappears, resetted by the arm of force 31 and trigger arm 32 in the presence of torsion spring 33, microswitch 4 is in closure state.
The present invention electric heater be with the operation principle of safety switch：
As shown in fig. 6-7, when no clothing etc. is covered on electric heater, external force is not now born by the arm of force 31, is triggered
The end of arm 32 keeps contacting with microswitch 4, and now microswitch 4 is in closure state, and the heating circuit of warmer connects,
Warmer can normal work.
As Figure 8-9, when there is clothing etc. to be covered on electric heater, external force now is born around supporting part 5 by the arm of force 31
Connecting shaft 52 rotate down clockwise, be provided with due to trigger arm 32 and between by the arm of force 31 and supported as supporting pivot
Portion, therefore the trigger arm 32 being connected with by the arm of force 31 is rotated up clockwise around connecting shaft 52, its end is de- with microswitch 4
From now microswitch 4 is triggered to off-state, therefore the heating circuit of warmer disconnects, warmer power-off, it is ensured that take
Warmer is in the state not heated, and avoids electric heater because of the dangerous work such as superhigh temperature caused by continuous heating covered with clothing
Make state.
Electric heater safety switch provided by the invention, because it is arranged on the outside of the heating face of electric heater, and safety open
Closing includes the microswitch that concatenate with heating circuit, and triggers the trigger arm of microswitch and by the arm of force, and stress unit is straight
, can be by by the arm of force linkage trigger arm when connecing the outside in the heating face of being arranged at, therefore being covered extremely by user on the outside of heating face
Trigger microswitch to disconnect, to cut off the electric current of heater circuit in time, avoid the disaster hidden-trouble that electric heater occurs by overheat.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (11)
- A kind of 1. electric heater safety switch, it is characterised in that including：Trigger element；And switch element, the switch element are concatenated to the heating circuit of the electric heater, and it is in normally off；It is described to touch Bill member triggers the switch element and disconnected when being acted on by external force.
- 2. safety switch according to claim 1, it is characterised in that：The trigger element includes by the arm of force, is attached thereto Trigger arm, and reset unit is described to be connected by the housing hinge of the arm of force and electric heater, the trigger arm it is described reset it is single The switch element is compressed in the presence of member, the switch element is in normally off, is acted on when described by the arm of force by external force When making the trigger arm away from the switch element, trigger the switch element and disconnect.
- 3. safety switch according to claim 2, it is characterised in that：It is described to be provided with support, the stress by the arm of force Arm passes through the support and the housing hinge.
- 4. safety switch according to claim 2, it is characterised in that：It is described to be provided with by the arm of force and the trigger arm junction Support, it is described to be passed through the support and the housing hinge by the arm of force.
- 5. safety switch according to claim 4, it is characterised in that：It is described by one end phase of the arm of force away from the trigger arm The housing is vacantly set.
- 6. safety switch according to claim 5, it is characterised in that：Described by the arm of force is arch bar, described remote by the arm of force The housing is inserted in one end activity from the trigger arm.
- 7. safety switch according to claim 4, it is characterised in that：The support includes being arranged on the housing Bearing, and the connecting shaft being connected with the bearing, trigger element and the bearing described in the connection axis connection.
- 8. safety switch according to claim 7, it is characterised in that：The reset unit is torsion spring, the one of the torsion spring End arms and the bearing clamping, another end arms of the torsion spring and the trigger element clamping.
- 9. the safety switch according to claim 3 or 4, it is characterised in that：The switch element is microswitch.
- 10. a kind of electric heater, it includes：Housing, there is heating face；Heat generating component, the heat generating component are placed in the housing, and the heat generating component produces heat energy after being powered；It is characterized in that：Also include the safety switch any one of claim 1-9, the safety switch is concatenated to controlling the heating group In the heating circuit of part；The position for bearing external force of wherein described trigger element is on the outside of the heating face.
- 11. electric heater according to claim 10, it is characterised in that：The housing includes host shell and connected Top cover, the heating face are arranged on the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339651.3A CN107883434A (en) | 2017-12-14 | 2017-12-14 | Safety switch for electric heater and electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339651.3A CN107883434A (en) | 2017-12-14 | 2017-12-14 | Safety switch for electric heater and electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107883434A true CN107883434A (en) | 2018-04-06 |
Family
ID=61774578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711339651.3A Pending CN107883434A (en) | 2017-12-14 | 2017-12-14 | Safety switch for electric heater and electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883434A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887107A (en) * | 2019-12-03 | 2020-03-17 | 珠海格力电器股份有限公司 | Electric heater control method and device, storage medium and electric heater |
| CN112682835A (en) * | 2021-01-29 | 2021-04-20 | 佛山市匠石电器有限公司 | Electric warmer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB604539A (en) * | 1945-11-26 | 1948-07-06 | Francis Roland Cockman | Improvements in or relating to safety devices for electrical heating apparatus |
| JPS6162730A (en) * | 1984-09-04 | 1986-03-31 | Matsushita Electric Ind Co Ltd | Safety device for electric heating equipment |
| CN1401942A (en) * | 2002-09-06 | 2003-03-12 | 张和君 | Radiation convection electric warmer |
| CN105627411A (en) * | 2016-03-31 | 2016-06-01 | 广东美的环境电器制造有限公司 | Electric heater |
| CN208042302U (en) * | 2017-12-14 | 2018-11-02 | 珠海格力电器股份有限公司 | Safety switch for electric heater and electric heater |
-
2017
- 2017-12-14 CN CN201711339651.3A patent/CN107883434A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB604539A (en) * | 1945-11-26 | 1948-07-06 | Francis Roland Cockman | Improvements in or relating to safety devices for electrical heating apparatus |
| JPS6162730A (en) * | 1984-09-04 | 1986-03-31 | Matsushita Electric Ind Co Ltd | Safety device for electric heating equipment |
| CN1401942A (en) * | 2002-09-06 | 2003-03-12 | 张和君 | Radiation convection electric warmer |
| CN105627411A (en) * | 2016-03-31 | 2016-06-01 | 广东美的环境电器制造有限公司 | Electric heater |
| CN208042302U (en) * | 2017-12-14 | 2018-11-02 | 珠海格力电器股份有限公司 | Safety switch for electric heater and electric heater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887107A (en) * | 2019-12-03 | 2020-03-17 | 珠海格力电器股份有限公司 | Electric heater control method and device, storage medium and electric heater |
| CN110887107B (en) * | 2019-12-03 | 2020-12-18 | 珠海格力电器股份有限公司 | Electric heater control method and device, storage medium and electric heater |
| CN112682835A (en) * | 2021-01-29 | 2021-04-20 | 佛山市匠石电器有限公司 | Electric warmer |
| CN112682835B (en) * | 2021-01-29 | 2022-06-03 | 佛山市匠石电器有限公司 | Electric warmer |
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