CN207382611U - A kind of ceramic heating rod - Google Patents
A kind of ceramic heating rod Download PDFInfo
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- CN207382611U CN207382611U CN201721106251.3U CN201721106251U CN207382611U CN 207382611 U CN207382611 U CN 207382611U CN 201721106251 U CN201721106251 U CN 201721106251U CN 207382611 U CN207382611 U CN 207382611U
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- hot zone
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Abstract
The utility model discloses a kind of ceramic heating rod, including ceramic rod core, silicate lining layer, line with heating function and lead.The ceramic rod core is equipped with hot zone, and the line with heating function connects external power supply along ceramic rod mandrel to the hot zone in reciprocal inflection, being evenly distributed on the ceramic rod core by lead, and the silicate lining layer is close to line with heating function.The line with heating function is divided into hot zone front end, hot zone middle part and hot zone end along ceramic rod core axial direction, the sectional area of line with heating function in the middle part of the hot zone is more than the sectional area of the line with heating function of hot zone front end and hot zone end, the line with heating function wire laying mode of the utility model design, the defects of heating bar fever is uniform, and the heating bar fever for overcoming traditional line with heating function line width equal is uneven, short life.
Description
Technical field
The utility model is related to a kind of ceramic heating rods.
Background technology
Ceramic heater is a kind of uniform heater of High Efficiency Thermal branch, it can be ensured that hot-face temperature is uniform, eliminates and sets
Standby hot spot and cold spot, and there is long-life, good heat insulating, strong, corrosion-resistant, the diamagnetic field of mechanical performance, great Liang Ying
It is needed for automotive check sensor, vaporizer, electric iron, lambda sensor etc. in heat temperature raising parts or other occasions.
The structure of existing ceramic heating bar is made of ceramic rod core and silicate lining layer, ceramic rod core and ceramics covering
Resistance heating circuit is printed between layer.Existing ceramic heating bar is disadvantageous in that：Ceramic rod core and silicate lining layer
Between line with heating function generally in the structure back and forth turned back back and forth, hot zone can be caused in major diameter, the heating bar of long hot zone
Each different position temperature difference is huge.What commonly known ceramics were most afraid of is not high temperature, but uneven heating.Heating bar is long-term
Working life can be severely impacted in the case of the excessive temperature differentials of hot zone, and even direct-electrifying is burst, especially long
Phase is operated in the heating bar of 1000 DEG C or more high temperature.
Utility model content
The utility model covers in order to solve the above technical problems, providing a kind of ceramic heating rod including ceramic rod core, ceramics
Cap rock, line with heating function and lead.The ceramic rod core is equipped with hot zone, and the line with heating function is along ceramic rod mandrel in past return
Folding is evenly distributed on the hot zone of the ceramic rod core, and connects external power supply by lead, and the silicate lining layer is close to
Line with heating function.The line with heating function is divided into hot zone front end, hot zone middle part and hot zone end along ceramic rod core axial direction,
From heat dissipation, hot zone medium position can not be distributed since both ends cause heat to be gathered in the middle part of hot zone in fever, hair
Heat-sinking capability in the middle part of hot-zone is substantially weaker than the hot zone front end on both sides and the heat-sinking capability of hot zone end, so temperature is most
Height and the point of damage is easiest to, it is necessary to caloric value by reducing hot zone medium position, so in the middle part of the hot zone
Line with heating function sectional area be more than hot zone front end and hot zone end line with heating function sectional area.Its sectional area size
Show that method is as follows：
The ceramic heating rod that traditional fever cross-sectional area is equal first is designed, then tests its hot zone head temperature
Point and the temperature ratio in the middle part of hot zone, temperature ratio are X；Test its terminal temperature point and the temperature ratio in the middle part of hot zone, temperature ratio
For Y.The principle of design fever cross-sectional area must comply with, fever cross-sectional area and the fever in the middle part of hot zone of hot zone front end
Cross-sectional area ratio is 1/X.Hot zone end fever cross-sectional area is 1/Y with the fever cross-sectional area in the middle part of hot zone.
Further, the hot zone front end of the line with heating function is close to the middle part of ceramic rod core, the hot zone of the line with heating function
End is close to the end of ceramic rod core.Hot zone of the hot zone end with being located at ceramic rod core end in the middle part of ceramic rod core
Front end is compared, and heat-sinking capability is relatively poor, and the ceramic rod at the front end of hot zone is longer, and faster, described hot zone end should for heat dissipation
This is smaller than the caloric value of hot zone front end, so the sectional area of the line with heating function of the hot zone front end is less than hot zone end
Line with heating function sectional area.
Further, the Position Design of the line with heating function inflection is into rounded structure.Traditional heater wire often uses bent angle
For the mode at right angle, the bent angle position heat of which, which is not readily available, sufficiently to be disperseed, and the local temperature for causing the point is higher,
Heating rod failure is in turn resulted in, with the structure of fillet, can overcome the problems, such as that traditional heat-dissipating is bad.
Further, the ceramic heating rod includes end, and the termination point casing is equipped with one end of lead in ceramic heating rod
End.
Further, the end is silica gel or ceramics.
From the above description of the utility model, it can be seen, compared to the prior art, the utility model has the following advantages that：
The utility model provides a kind of ceramic heating rod, and according to heating bar different position, heat-sinking capability is different and generates heat
The relation of line line width and caloric value proposes that the line with heating function line width of heating bar different position is different, overcomes traditional line with heating function line width phase
Deng heating bar fever uneven, short life the defects of.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms one of the utility model
Point, the schematic description and description of the utility model is not formed for explaining the utility model to the utility model
Improper restriction.
Wherein：
Fig. 1 is the structure diagram of the utility model；(front view)
Fig. 2 is the line with heating function schematic diagram of the utility model；(front view)
Fig. 3 is traditional line with heating function schematic diagram.(front view)
Specific embodiment
In order to make technical problem to be solved in the utility model, technical solution and advantageous effect clearer, clear, with
Under in conjunction with the accompanying drawings and embodiments, the utility model is further elaborated.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
It please refers to Fig.1 and Fig. 2, a kind of ceramic heating rod includes ceramic rod core 1, silicate lining layer, line with heating function 2 and lead 3.
The ceramic rod core 1 is equipped with hot zone, and the line with heating function 2 is axial in reciprocal inflection along ceramic rod core 1, is evenly distributed on described
Ceramic rod core 1 hot zone, and pass through lead 3 and connect external power supply, the silicate lining layer is close to line with heating function 2.The hair
Hot line 2 is divided into hot zone front end 21 along 1 axial direction of ceramic rod core, 22 and hot zone end 23 in the middle part of hot zone, from dissipating
It is seen in heat, 22 positions can not distribute, send out since both ends cause heat to be gathered in the middle part of hot zone 22 in fever in the middle part of hot zone
22 heat-sinking capability is substantially weaker than the hot zone front end 21 on both sides and the heat-sinking capability of hot zone end 23 in the middle part of hot-zone, so warm
Degree highest and the point of damage is easiest to, it is necessary to caloric value by reducing by 22 positions in the middle part of hot zone, so the fever
The sectional area of 22 line with heating function 2 is more than the sectional area of the line with heating function 2 of hot zone front end 21 and hot zone end 23 in the middle part of area.Its section
Size ratio show that method is as follows：
The ceramic heating rod that traditional 2 sectional area of line with heating function is equal first is designed, then tests its hot zone front end 21
Temperature spot and in the middle part of hot zone 22 temperature ratio, temperature ratio is X；Test its terminal temperature point and in the middle part of hot zone 22 temperature
Than temperature ratio is Y.The principle of design 2 sectional area of line with heating function must comply with, 2 sectional area of line with heating function and the hair of hot zone front end 21
22 2 sectional area ratio of line with heating function is 1/X in the middle part of hot-zone.23 line with heating function of hot zone end, 2 sectional area and the hair at hot zone middle part 22
2 sectional area of hot line is 1/Y.
Referring to Fig. 3, being the consistent resistive film printed wire 4 in cross section of current mainstream, also correspondence is divided into three hairs
Hot-zone is the first hot zone 41, the second hot zone 42 and the 3rd hot zone 43 respectively.First hot zone 41 is close to ceramic rod core
Middle part, the 3rd hot zone 43 is close to the end of ceramic rod core.
Experiment one：
Note 21 and first hot zone 41 of hot zone front end is temperature measuring point A, and note hot zone middle part 22 and the second hot zone 42 are
Temperature measuring point B, note 23 and the 3rd hot zone 43 of hot zone end are temperature measuring point C.The present embodiment is to the utility model different model
Heating bar and traditional heating bar carry out thermometric, and temperature-measuring results are as follows：
Test result：Due to the characteristic of heating bar, etc. under line widths wiring, hot zone middle part and edge dissipating-heat environment
Difference, cause that the fever on hot zone is uneven, and the temperature difference is larger.Hot zone front end (close to lead) is due to the longer temperature of porcelain body
Lower than hot zone end (close to air), hot zone centre position causes heat to be gathered in fever due to both ends in fever
It can not be distributed among area, so temperature highest.And it is easiest to the point of damage.Each different model since size is different,
The different corresponding uneven situations of fever of fever section length are also had nothing in common with each other.The heating bar designed in the case of the utility model
By the high-temperature area line with heating function overstriking in hot zone, reached according to R=(L* ρ)/S and drop low-resistance purpose accordingly, by low temperature
The line with heating function line width in region reduces accordingly, achievees the purpose that be correspondingly improved resistance according to R=(L* ρ)/S, finally, according to string
Join voltage in circuit and distribute the feature directly proportional to resistance distribution.The voltage of high-temperature area distribution is smaller, opposite power also compared with
Small, the heat of generation is also smaller, and the voltage of low-temperature region distribution is larger, and opposite power is also larger, and the heat of generation is also larger.
It is shifting, achieve the purpose that consistent heat generation.
Experiment two：
Two kinds of various wirings modes respectively take 5 kinds of different models, carry out life span comparison's test under identical circumstances.It will add
Hot pin leads to 220V voltages, is heated to 1000 DEG C or more 3 minutes, simulates high-temperature work environment, then powers off air-cooled 4 minutes, be denoted as
Experiment is once.
The test data of traditional wiring mode is as follows：
The test data of the utility model wire laying mode is as follows：
Test result：Evenly, the porcelain body surface heat area temperature difference is smaller, does not have for the product fever of the utility model wire laying mode
There is the superhigh temperature hot zone especially concentrated, it is smaller to the damage of porcelain body, directly the service life is played and is obviously improved.
In the present embodiment, the Position Design of 2 inflection of line with heating function is into rounded structure.Traditional heater wire is often using curved
Angle is the mode at right angle, the bent angle position heat of which be not readily available it is sufficiently scattered, cause the local temperature of the point compared with
Height in turn results in heating rod failure, with the structure of fillet, can overcome the problems, such as that traditional heat-dissipating is bad.
From the above description of the utility model, it can be seen, compared to the prior art, the utility model has the following advantages that：
The utility model provides a kind of ceramic heating rod, and according to heating bar different position, heat-sinking capability is different and generates heat
The relation of line line width and caloric value proposes that the line with heating function line width of heating bar different position is different, overcomes traditional line with heating function line width phase
Deng heating bar fever uneven, short life the defects of.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model implement and from
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that the methodology of the utility model and technical solution carry out
Into or it is not improved the design of the utility model and technical solution are directly applied into other occasions, in the utility model
Protection domain within.
Claims (5)
1. a kind of ceramic heating rod, including ceramic rod core, silicate lining layer, line with heating function and lead；The ceramic rod core is equipped with hair
Hot-zone, the line with heating function is along ceramic rod mandrel to the hot zone in reciprocal inflection, being evenly distributed on the ceramic rod core, institute
It states silicate lining layer and is close to line with heating function, be covered on ceramic rod core, lead connection line with heating function and external power supply, feature
It is, the line with heating function is divided into hot zone front end, hot zone middle part and hot zone end, institute along ceramic rod core axial direction
The sectional area for the line with heating function in the middle part of hot zone stated is more than the sectional area of the line with heating function of hot zone front end and hot zone end.
2. a kind of ceramic heating rod according to claim 1, which is characterized in that the hot zone front end of the line with heating function is close
The middle part of ceramic rod core, the hot zone end of the line with heating function is close to the end of ceramic rod core, the hair of the hot zone front end
The sectional area of hot line is less than the sectional area of the line with heating function of hot zone end.
3. a kind of ceramic heating rod according to claim 1, which is characterized in that the Position Design of the line with heating function inflection into
Rounded structure.
4. a kind of ceramic heating rod according to claim 1, which is characterized in that the ceramic heating rod includes end, institute
State one end end that termination point casing is equipped with lead in ceramic heating rod.
5. a kind of ceramic heating rod according to claim 4, which is characterized in that the end is silica gel or ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106251.3U CN207382611U (en) | 2017-08-31 | 2017-08-31 | A kind of ceramic heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106251.3U CN207382611U (en) | 2017-08-31 | 2017-08-31 | A kind of ceramic heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207382611U true CN207382611U (en) | 2018-05-18 |
Family
ID=62342518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721106251.3U Active CN207382611U (en) | 2017-08-31 | 2017-08-31 | A kind of ceramic heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207382611U (en) |
-
2017
- 2017-08-31 CN CN201721106251.3U patent/CN207382611U/en active Active
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