CN206380098U - A kind of micro- heater with overtemperature protection - Google Patents
A kind of micro- heater with overtemperature protection Download PDFInfo
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- CN206380098U CN206380098U CN201621054753.1U CN201621054753U CN206380098U CN 206380098 U CN206380098 U CN 206380098U CN 201621054753 U CN201621054753 U CN 201621054753U CN 206380098 U CN206380098 U CN 206380098U
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Abstract
The utility model provides a kind of micro- heater with overtemperature protection; including ceramic matrix; the ceramic matrix includes the first cavity and the second cavity being independently arranged; temperature-sensitive shearing device is provided with second cavity; resistive element is provided with the ceramic matrix outer wall, the resistive element is connected in series with the temperature-sensitive shearing device.Micro- heater with overtemperature protection that the utility model is provided, it has overtemperature and overcurrent defencive function, and small volume, simple in construction.
Description
Technical field
The utility model is related to a kind of micro- heater with overtemperature protection, more particularly to a kind of for heating liquid object
Micro- heater of matter.
Background technology
At present, the micro-heaters such as perfume fumigator, mosquito repellant are often used in life, it is by wire-wound resistor, carbon film, metal film
Or the fixed resistance such as metal oxide film is embedded in ceramic case of the side with cavity volume, and with curable insulating materials filling
It is fixed, so as to form heater.But this type heater structure is complex, temperature point in the earrings of ceramic case side
Cloth is uneven, and diffusion rod is heated uneven, causes the uneven volatilization of essential oil, mosquito-driving liquid, and radiating is excessively, causes waste of energy；By
In adding thermal resistance be fixed resistance, when using must considered critical input voltage, when this heater is mistakenly used for by client
During higher voltage, resistance can be generated heat because of heavy overload, and the plastic casing fusion crust of Fregrant releaser or mosquito repellant may be caused to catch fire,
The person and property safety to consumer bring serious threat.
Utility model content
Not enough based on more than, the technical problems to be solved in the utility model is to provide a kind of micro- heating with overtemperature protection
Device, it has overtemperature and overcurrent defencive function, and small volume, simple in construction.
In order to solve the above technical problems, the utility model employs following technical scheme：
A kind of micro- heater with overtemperature protection, including ceramic matrix, the ceramic matrix include what is be independently arranged
Temperature-sensitive shearing device, the ceramics are provided with the first cavity and the second cavity for being put into diffusion rod, second cavity
Resistive element is provided with matrix outer wall, the resistive element is connected in series with the temperature-sensitive shearing device.
The two ends of the ceramic matrix are respectively arranged with the first metal cap and the second metal cap, first metal cap and institute
State the second metal cap to electrically connect with the resistive element respectively, the temperature-sensitive shearing device includes temperature sensor and is arranged on temperature sensor
First lead and the second lead at two ends, first lead extend through first metal cap and to outside the first metal cap,
Second lead is electrically connected with second metal cap, and the 3rd lead is also associated with first metal cap.
The temperature sensor is low-melting-point metal silk, fluxing disconnected agent is also attached with around the low-melting-point metal silk, described
Porcelain tube two ends are filled with insulating materials.
The resistive element is electric resistance alloy silk, carbon film, metal film or metal oxide film.
Also include the insulating coating of first metal cap, the second metal cap and resistive element sealed insulation.
The one kind of the insulating coating in epoxy resin, silicones, silicon rubber and inorganic material.
Also include being provided with the shell for accommodating the ceramic matrix and resistive element, the shell for first lead and
The hole that 3rd lead is drawn.
The shell includes cap and circumferential butt, and the cap includes cylindrical tube and is arranged on the cylinder pipe end
Face and the annulus extended to the cylinder tube hub, the circumferential butt are arranged on the other end of the cylindrical tube, the ceramics
The two ends of matrix are provided with positive seam, and the annulus is connected with the positive seam respectively with the circumferential butt.
First cavity and second cavity are through hole.
Using above technical scheme, the utility model achieves following technique effect：
Micro- heater with overtemperature protection that the utility model is provided, its small volume, and with overtemperature and overcurrent protection
Function；It and resistive element is evenly affixed to porcelain tube surface, can uniformly heat, save electric energy.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model embodiment one；
Fig. 2 is the structure chart of the utility model embodiment two.
Embodiment
Embodiment one
A kind of micro- heater with overtemperature protection, including ceramic matrix 1 are present embodiments provided, ceramic matrix 1 is wrapped
The first cavity 11 and the second cavity 12 being independently arranged are included, the first cavity 11 is used to insert to be set in diffusion rod, the second cavity 12
Have and be provided with resistive element 3 on temperature-sensitive shearing device 2, the outer wall of ceramic matrix 1, resistive element 3 is connected in series with temperature-sensitive shearing device 2.
Specifically, in the present embodiment, the first cavity 11 and the second cavity 12 are through hole, and the two ends of ceramic matrix 1 are respectively arranged with first
The metal cap 5 of metal cap 4 and second, the first metal cap 4 and the second metal cap 5 are electrically connected with resistive element 3 respectively, temperature-sensitive shearing device
2 include temperature sensor 21 and are arranged on first lead 22 and the second lead 23 at the two ends of temperature sensor 21, and the first lead 22 is through the
One metal cap 4 simultaneously extends to outside the first metal cap 4, and the second lead 23 is electrically connected with the second metal cap 5, on the first metal cap 4 also
The 3rd lead 6 is connected with, temperature-sensitive shearing device 2 may include to be arranged on outside temperature sensor 21, the first lead 22 and the second lead 23
Shell.In use, rod is spread in insertion in the first cavity 11, the resistive element 3 being uniformly arranged on the outer wall of ceramic matrix 1 can be right
Spread rod and concentrate uniform heating, heat can be fully utilized, and save electric energy, and extend the function of service life；Sense
Warm shearing device can play a part of overtemperature and overcurrent protection, it is to avoid plastic casing melts, burns and cause personal wealth to user
Production loss.
Temperature sensor 21 is also to be attached with fluxing disconnected agent 7 around low-melting-point metal silk, low-melting-point metal silk, is filled out at porcelain tube two ends
Filled with insulating materials 8.Resistive element 3 is electric resistance alloy silk, carbon film, metal film or metal oxide film.Also include metal cap and electricity
The insulating coating 9 of resistance body sealed insulation.The one kind of insulating coating 9 in epoxy resin, silicones, silicon rubber and inorganic material
Or it is several.
Embodiment two
The present embodiment and the difference of embodiment 1 are that micro- heater that the present embodiment has overtemperature protection is also wrapped
Include and be provided with what is drawn for the first lead 22 and the 3rd lead 6 on the shell 10 for accommodating ceramic matrix 1 and resistive element 3, shell 10
Hole.
Shell 10 includes cap 101 and circumferential butt 102, and cap 101 includes cylindrical tube 1011 and is arranged on cylinder
The end face of pipe 1011 and the annulus 1012 extended to cylinder tube hub, circumferential butt 102 are arranged on the other end of cylindrical tube 1011, make pottery
The two ends of porcelain basal body 1 are provided with positive seam 11, and annulus 1012 is connected with positive seam 11 respectively with circumferential butt 102.
Embodiment three
Heater as described in Example 2, when its resistive element selects model 6J20 resistance wire, correspondence resistance is 15
Can be 5V dc regular charger with output voltage during Ω, such as USB interface of charger for mobile phone, computer as power supply,
To be powered to heater.Contrast the utility model in embodiment 2 heater with market money electric mosquito repellent heater in phase
With the temperature difference of heater surfaces externally and internally under heating power, its result is as shown in the table.From the comparing result of following table,
Under identical heating power, temperature of the utility model heater internal surface temperature higher than the heater bore area in market
Degree, and hull-skin temperature is less than the hull-skin temperature of this heater of market, i.e., the heating of heater of the present utility model is more
Many concentrates on to diffusion rod heating, i.e., under smaller heating power, may be such that evaporation rate and the market of diffusion rod liquid
On heater it is identical, can effectively save electric energy.
Example IV
Heater in the present embodiment, its resistive element select for 6J20 resistance wires, corresponding resistance is 15 Ω, correspondence
The rated function temperature of temperature-sensitive shearing device is 145 DEG C.Contrast electric mosquito repellent on heater of the present utility model and existing market
Surface temperature and turn-off time of the heater under different test voltages, comparing result are as shown in the table, of the present utility model to add
Thermal can cut off circuit, it is to avoid electric mosquito repellent heater when input voltage is abnormal by effective disconnection of temperature-sensitive shearing device
Plastic casing melts, and burns, loss of personal property is brought to consumer.
Finally it should be noted that：Preferred embodiment of the present utility model is these are only, this practicality is not limited to
It is new, although the utility model is described in detail with reference to embodiment, for those skilled in the art, its according to
The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced
Change, but it is all within spirit of the present utility model and principle, and any modification, equivalent substitution and improvements made etc. all should be included
Within protection domain of the present utility model.
Claims (9)
1. a kind of micro- heater with overtemperature protection, it is characterised in that：Including ceramic matrix, the ceramic matrix includes only
Erect in the first cavity and the second cavity that are used to be put into diffusion rod put, second cavity and be provided with temperature-sensitive shearing device,
Resistive element is provided with the ceramic matrix outer wall, the resistive element is connected in series with the temperature-sensitive shearing device.
2. micro- heater according to claim 1 with overtemperature protection, it is characterised in that：The two of the ceramic matrix
End is respectively arranged with the first metal cap and the second metal cap, first metal cap and second metal cap respectively with the electricity
Resistance body is electrically connected, and the temperature-sensitive shearing device includes temperature sensor and is arranged on first lead at temperature sensor two ends and second and draws
Line, first lead is through first metal cap and extends to outside the first metal cap, second lead and described second
Metal cap is electrically connected, and the 3rd lead is also associated with first metal cap.
3. micro- heater according to claim 1 with overtemperature protection, it is characterised in that：The temperature sensor is eutectic
Fluxing disconnected agent is also attached with around point wire, the low-melting-point metal silk, insulation material is filled with the second cavity two ends
Material.
4. micro- heater according to claim 1 with overtemperature protection, it is characterised in that：The resistive element is resistance
B alloy wire, carbon film, metal film or metal oxide film.
5. micro- heater according to claim 2 with overtemperature protection, it is characterised in that：Also include described first
The insulating coating of metal cap, the second metal cap and resistive element sealed insulation.
6. micro- heater according to claim 5 with overtemperature protection, it is characterised in that：The insulating coating is selected from
One kind in epoxy resin, silicones, silicon rubber and inorganic material.
7. micro- heater according to claim 2 with overtemperature protection, it is characterised in that：Also include accommodating the pottery
The hole drawn for first lead and the 3rd lead is provided with the shell of porcelain basal body and resistive element, the shell.
8. micro- heater according to claim 7 with overtemperature protection, it is characterised in that：The shell includes cap
And circumferential butt, the cap include cylindrical tube and be arranged on the cylinder end surfaces and to the cylinder tube hub extend
Annulus, the circumferential butt is arranged on the other end of the cylindrical tube, and the two ends of the ceramic matrix are provided with positive seam,
The annulus is connected with the positive seam respectively with the circumferential butt.
9. micro- heater according to claim 1 with overtemperature protection, it is characterised in that：First cavity and institute
It is through hole to state the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054753.1U CN206380098U (en) | 2016-09-14 | 2016-09-14 | A kind of micro- heater with overtemperature protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054753.1U CN206380098U (en) | 2016-09-14 | 2016-09-14 | A kind of micro- heater with overtemperature protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206380098U true CN206380098U (en) | 2017-08-04 |
Family
ID=59402862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621054753.1U Active CN206380098U (en) | 2016-09-14 | 2016-09-14 | A kind of micro- heater with overtemperature protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206380098U (en) |
-
2016
- 2016-09-14 CN CN201621054753.1U patent/CN206380098U/en active Active
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