CN116963326A - Ceramic heater and glow plug - Google Patents
Ceramic heater and glow plug Download PDFInfo
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- CN116963326A CN116963326A CN202310962595.8A CN202310962595A CN116963326A CN 116963326 A CN116963326 A CN 116963326A CN 202310962595 A CN202310962595 A CN 202310962595A CN 116963326 A CN116963326 A CN 116963326A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 144
- 238000010438 heat treatment Methods 0.000 claims abstract description 97
- 239000011159 matrix material Substances 0.000 claims abstract description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 27
- 239000010439 graphite Substances 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000008646 thermal stress Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 44
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims 3
- 230000008602 contraction Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 180
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000000758 substrate Substances 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
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- Resistance Heating (AREA)
Abstract
The utility model discloses a ceramic heater and a glow plug, which comprise ceramic heater bodies arranged in a ceramic heating lamp, wherein the ceramic heater bodies comprise ceramic matrixes and heating elements arranged in the ceramic heater bodies in a U-shaped mode, graphite fiber layers are annularly sleeved on the outer sides of the heating elements and used for reducing thermal stress transmitted to the ceramic matrixes by the heating elements, and air inlets penetrating through the ceramic matrixes are distributed on the outer side wall arc directions of a heat conducting armor ring cavity. According to the utility model, according to the installation height of the ceramic heating lamp and the range position of the area to be heated, the A, B wind power grades of the air source part are exchanged, and the graphite fiber layer is sleeved on the outer side of the heating element in an annular manner and used for reducing the thermal stress transmitted to the ceramic matrix by the heating element; the heat accumulation in the ceramic matrix is avoided, the heating range of the periphery is larger, the generated heat can be introduced into the area to be heated below, and the problems of cracks and stripping caused by expansion or contraction between the ceramic matrix and the heating element are solved.
Description
Technical Field
The utility model belongs to the technical field of ceramic heating elements, and particularly relates to a ceramic heater and a glow plug.
Background
Ceramic heater lamps (also known as pet heating lamps) are generally composed of a housing, ceramic heater elements, wires and cables, a power socket, a temperature adjusting device and a safety protection device, the heater elements in the existing ceramic heater lamps are not combined with a glow plug, and the ceramic heater is generally composed of a heating resistor body, a lead part, an electrode part and a ceramic matrix;
such as chinese patent publication No. CN101933392a, which discloses a ceramic heater comprising a heating resistor; a first lead portion and a second lead portion; a first electrode extraction portion and a second electrode extraction portion electrically connected to the ends of the lead portions, respectively; a ceramic substrate in which a heating resistor, a first lead portion, a second lead portion, and a first electrode extraction portion and a second electrode extraction portion are embedded; a first electrode and a second electrode formed on the surface of the ceramic substrate; the way of cooperation between ceramic heater and glow plug is described.
Another example is chinese patent with bulletin number CN212163749U, which discloses a ceramic heating lamp, comprising a lamp cap, the lamp cap bottom is fixed and is equipped with the lamp shade, the lamp shade bottom is fixed and is equipped with the lamp stand, the inside mechanism that generates heat that is equipped with of lamp stand, the mechanism that generates heat includes spiral channel, spiral channel is seted up at lamp stand diapire top, spiral channel is inside to be laid the heating wire, the heating wire top is equipped with heat preservation cotton, heat preservation cotton and base diapire top fixed connection, the heating wire both ends all are equipped with the wire, wire and heating wire electric connection. According to the utility model, the heat emitted by the electric heating wires can be effectively prevented from diffusing to the upper part of the lampshade through the heat-insulating cotton, so that the heat is concentrated to diffuse to the bottom of the base, the effects of porcelain heat insulation and constant temperature are realized, and the heat is successfully prevented from diffusing to the upper part of the lampshade by the heat-insulating cotton, so that a user cannot be scalded by high temperature when the user touches the lampshade by hands; the basic construction of a ceramic heating lamp is described.
However, the above scheme has the following disadvantages: when the ceramic heater with the glow plug in the publication No. CN101933392A is applied to the ceramic heating lamp in the Chinese patent publication No. CN212163749U, as the heating element of the ceramic heater lamp is concentrated in the bottom partial area, the heating element naturally rises the hot air flow generated after the heating element heats the surrounding ambient air, the heating range of the heating element is smaller for the surrounding, and meanwhile, a part of heat is dissipated backwards or around, and the generated heat cannot be introduced into the area to be heated below, so that the heating speed is slow; for heating elements of metal material, the ceramic matrix and the heating element have different coefficients of thermal expansion, the lower the coefficient of thermal expansion of the ceramic material, the more expensive it may be, and in high temperature applications, the temperature change may cause the material to expand or contract, the interface between them may be subjected to severe stresses, which may lead to cracking, delamination or failure; when a ceramic heater including a glow plug is applied to a ceramic heater lamp, it is an object of the present utility model to provide a ceramic heater lamp which can be improved in heating range and heating speed, and which can overcome the problems of cracking and peeling between a ceramic substrate and a heating element due to expansion or contraction.
Disclosure of Invention
The present utility model is directed to a ceramic heater and a glow plug that solve the above-described problems of the related art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the ceramic heater comprises a ceramic heater body which is arranged in a ceramic heating lamp, wherein the ceramic heater body comprises a ceramic matrix and a heating element which is arranged in the ceramic heater body in a U-shaped mode, a graphite fiber layer is annularly sleeved outside the heating element and used for reducing the thermal stress transmitted to the ceramic matrix by the heating element, a heat-conducting armor annular cavity is embedded and arranged in the annularly-arranged graphite fiber layer, and an air inlet penetrating through the ceramic matrix is arranged in the arc direction of the outer side wall of the heat-conducting armor annular cavity;
the bottom end surface of the ceramic matrix heating section is provided with a movable groove, the upper part of the movable groove can be provided with an air regulating plate in a limiting sliding manner, an air regulating channel is arranged on the air regulating plate, the inner side of the movable groove is parallel to the lower part between the two side edge parts of the heating element, an air inlet pipe part is arranged in a penetrating manner, the upper end surface of the air inlet pipe part is communicated with a limiting air pipe and is communicated with the air regulating channel at a corresponding position, auxiliary air inlets corresponding to the air inlet positions are arranged on the two side walls of the inner part of the movable groove, the air outlet end of the air regulating channel can be communicated with any one of a heat conducting armor annular cavity and the auxiliary air inlets, the air inlet end of the air inlet pipe part is connected with an external air source part, the air source part provides A, B two wind power levels, and A is more than B;
when the air source part provides the A wind power grade, the air regulating channel is communicated with the heat conducting armor annular cavity, and at the moment, the heat of the ceramic matrix and the graphite fiber layer absorbed by the heat conducting armor annular cavity is entrained by flowing air and discharged to the periphery and the lower side through the air guiding opening;
when the air source part provides B wind power grade, the exhaust end of the air regulating channel is communicated with the auxiliary air port, and the flowing air is discharged downwards after absorbing the heat emitted by the ceramic matrix through the auxiliary air port
Preferably, the thickness of the graphite fiber layer is larger than that of the heat-conducting armored annular cavity, and the inner wall of the induced air port is symmetrically provided with anti-drop cone blocks embedded into the ceramic matrix and used for improving the interfacial adhesion between the ceramic matrix and the heating element.
Preferably, arc grooves are arranged on the outer walls of the two sides of the ceramic substrate, the air outlet end of the air inducing port is communicated with the arc grooves at the corresponding positions, and the arc grooves are used for improving the heat exchange area of flowing gas.
Preferably, two side walls inside the movable groove are provided with limiting vertical grooves and are communicated with the heat conduction armor annular cavities at corresponding positions, and two sides of the air adjusting plate are provided with protruding parts and are matched with the limiting vertical grooves;
the air regulating channel is of a T-shaped structure, the T edges on two sides of the air regulating channel are air outlet parts and are communicated with the limiting vertical grooves, the two sides of the inner wall of the air inlet of the air regulating channel are respectively provided with an anti-falling groove, the top of the limiting air pipe is provided with a flanging part and is in sliding fit with the anti-falling grooves, and the auxiliary air inlet is communicated with the limiting vertical grooves.
Preferably, the upper part of the ceramic heating lamp is provided with a gas distribution main pipe and is communicated with the gas outlet end of the gas source part, the gas inlet end of the gas inlet pipe part is connected with the gas distribution main pipe through a gas guide pipe, and the top wall of the inner side of the movable groove is provided with a buffer layer for preventing rigid collision between the air regulating port plate and the ceramic matrix.
Preferably, the bottom end surface of the ceramic heating lamp is provided with a heat dissipation plate, an outer convex arc part is arranged on the heat dissipation plate, a main hot air outlet is arranged on the heat dissipation plate, an auxiliary hot air outlet is arranged on the outer convex arc part, the heating element section of the ceramic heater body is arranged on the inner side of the outer convex arc part, the air inlets distributed in the arc directions are arranged on the upper, middle and lower positions of the arc grooves, and the hot air exhaust flow can be led into the main hot air outlet and the auxiliary hot air outlet through the air inlets for exhaust; the hot air exhausted from the auxiliary air port can be exhausted through the auxiliary hot air outlet hole.
The utility model provides a glow plug, includes and uses above-mentioned ceramic heater, the cooperation of ceramic heater body sets up inside the glow plug shell, and the glow plug shell cooperation sets up in the heating panel top, and ceramic heater body power end is connected with the built-in wire of ceramic heating lamp through the glow plug shell.
Compared with the prior art, the utility model has the beneficial effects that:
according to the installation height of the ceramic heating lamp and the range position of the area to be heated, the A, B wind power levels of the air source part are exchanged, firstly, a graphite fiber layer is sleeved on the outer side of the heating element in a ring shape and used for reducing the thermal stress transmitted to the ceramic matrix by the heating element;
when the air source part provides the A wind power grade, the air regulating channel is communicated with the heat conducting armor annular cavity, at the moment, the heat of the heat conducting armor annular cavity absorbing the ceramic matrix and the graphite fiber layer is entrained by flowing air and discharged towards the periphery and the lower part through the air guiding opening, and the heating range of hot air is larger;
when the air source part provides the B wind power grade, the exhaust end of the air regulating channel is communicated with the auxiliary air port, and flowing air is discharged downwards after absorbing heat emitted by the ceramic matrix through the auxiliary air port, wherein the heating range of hot air is the lower part of the ceramic heating lamp;
the anti-drop cone blocks embedded into the two sides of the inner wall of the air inlet can transfer the heat in the ceramic matrix into the air inlet, the arc-shaped groove is used for improving the heat exchange area of the flowing gas, and finally the discharged hot gas flow can be introduced into the main hot gas outlet hole and the auxiliary hot gas outlet hole to be discharged through the air inlet and under the cooperation of the arc-shaped groove; the auxiliary air port can discharge hot air flow through the auxiliary hot air outlet, so that heat accumulation in the ceramic matrix is avoided, the peripheral heating range is larger, generated heat can be introduced into a region to be heated below, the heating speed is improved, and the problems of cracking and stripping caused by expansion or contraction between the ceramic matrix and the heating element are solved.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a partial schematic view of the ceramic matrix region inside the outer arc of FIG. 1;
FIG. 3 is a schematic view showing a communication state between the air regulating channel and the auxiliary air port in the air regulating plate of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the mated state of the glow plug housing and ceramic heater body of the present utility model;
FIG. 5 is a schematic view in partial cutaway of the ceramic matrix of FIG. 4 in top view;
FIG. 6 is a schematic partial cross-sectional view of a glow plug housing and ceramic heater body of the present utility model inside a ceramic heating lamp;
FIG. 7 is a schematic view of a cross-sectional area of the ceramic heater body of FIG. 6;
FIG. 8 is a schematic view of FIG. 7 with the tuyere plate, the air inlet pipe portion and the limiting air pipe removed;
fig. 9 is a partially cross-sectional view showing a state in which the air inlet pipe portion and the air duct are fitted to each other.
In the figure: 1. a ceramic heating lamp; 2. a ceramic matrix; 3. a heating element; 4. a graphite fiber layer; 5. a thermally conductive armor annular cavity; 6. an air inlet; 7. a movable groove; 8. an air adjusting port plate; 9. regulating an air duct; 10. an air inlet pipe section; 11. limiting an air pipe; 12. an auxiliary air port; 13. an air source part; 14. an anti-falling cone block; 15. an arc-shaped groove; 16. limiting vertical grooves; 17. a boss; 18. an anti-drop groove; 19. a gas distribution main pipe; 20. an air duct; 21. a buffer layer; 22. an outer convex arc part; 23. a secondary hot gas outlet hole; 101. a ceramic heater body; 201. a glow plug housing; 301. a wire; 401. a main hot gas outlet; 501. and a heat dissipation plate.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-9, the present utility model provides a technical solution:
embodiment one:
the ceramic heater comprises a ceramic heater body 101 which is arranged in a ceramic heating lamp 1, wherein the ceramic heater body 101 comprises a ceramic base body 2 and a heating element 3 which is arranged in the ceramic heater body in a U-shaped mode, a graphite fiber layer 4 is annularly sleeved outside the heating element 3 and used for reducing the thermal stress transmitted to the ceramic base body 2 by the heating element 3, the graphite fiber layer 4 is of a cylindrical structure with a section, and the wall thickness is set to be 2mm;
high thermal conductivity: the graphite fiber has excellent heat conductivity, can effectively conduct heat, and improves heat transfer efficiency;
high temperature resistance: the graphite fiber keeps structural stability and strength under the high temperature condition, and can bear the application environment of higher temperature;
elasticity and flexibility: the graphite fiber has certain elasticity and flexibility, can fill and level up irregularly-shaped gaps, and improves contact performance and thermal uniformity;
dimensional stability: because the graphite fiber has a lower thermal expansion coefficient, the graphite fiber can maintain smaller dimensional change when the temperature changes, and the thermal strain and stress concentration are reduced;
the heat-conducting armor ring cavity 5 is embedded and arranged in the annular graphite fiber layer 4, the heat-conducting armor ring cavity 5 is formed by interweaving and braiding heat-conducting metal wires and the graphite fiber layer 4 to form a composite structure, the heat-conducting metal wires are adaptively adjusted according to the working temperature range of the heating element 3, the melting point of the heat-conducting metal wires is required to be ensured to be larger than the working temperature of the heating element 3, copper can be adopted as the heat-conducting metal wires in the embodiment, and the air inlet 6 penetrating through the ceramic matrix 2 is distributed in the arc direction of the outer side wall of the heat-conducting armor ring cavity 5;
the bottom end surface of the heating section of the ceramic substrate 2 is provided with a movable groove 7, the upper part of the movable groove 7 can be provided with an air regulating plate 8 in a limiting sliding manner, the air regulating plate 8 is provided with an air regulating channel 9, the inner side of the movable groove 7 is parallel to the lower part between the two side edge parts of the heating element 3, an air inlet pipe part 10 is arranged in a penetrating manner, the upper end surface of the air inlet pipe part 10 is communicated with the air regulating channel 9 at the corresponding position, a limiting air pipe 11 is arranged on the upper end surface of the air inlet pipe part 10 in a communicating manner, the two side walls of the inner part of the movable groove 7 are provided with auxiliary air inlets 12 corresponding to the positions of the air inlets 6, the auxiliary air inlets 12 obliquely extend into the ceramic substrate 2 at the two sides of the movable groove 7, the arrangement of the auxiliary air inlets 12 can improve the heat exchange area of flowing through air, further improve the heat exchange efficiency, and meanwhile, the inner wall of the auxiliary air inlets 12 is provided with any one of high-temperature resistant heat conducting grease or heat conducting metal sheets in the bearing temperature range, the outer surface of the heat conduction metal sheet is designed into an air duct, prismatic bulges are distributed on the outer surface of the heat conduction metal sheet, the heat exchange area is improved, the exhaust end of the air regulating channel 9 can be communicated with any one of the heat conduction armor annular cavity 5 and the auxiliary air inlet 12, the air inlet end of the air inlet pipe part 10 is connected with an external air source part 13, the air source part 13 is a CY063 fan produced by the manufacturing company of three-electric appliances of Dongguan city, the air source part 13 can be adaptively adjusted in specification according to the actual wind power, meanwhile, the air source part 13 can be replaced by a small air pump, the mature product in the prior art is omitted, the air source part 13 provides A, B wind power levels, A is larger than B, the air regulating plate 8 can be pushed when the wind power value from the lower part to the inside of the air regulating channel 9 is larger than M, and the M is related to the gravity and the friction resistance suffered by the air regulating plate 8;
when the air source part 13 provides the A wind power grade, the wind power value represented by A is larger than M, so that the upward air thrust generated by the air adjusting plate 8 is larger than the combination of the received gravity and the friction resistance, the air adjusting channel 9 is communicated with the heat conducting armor annular cavity 5, the heat of the heat conducting armor annular cavity 5 absorbed by the ceramic matrix 2 and the graphite fiber layer 4 is entrained by flowing air and discharged towards the periphery and the lower part through the air guiding opening 6, and the heating range of hot air is larger;
when the air source part 13 provides B wind power grade, the wind power value represented by B is smaller than or equal to M, the air adjusting plate 8 cannot be blown by wind power, the air discharging end of the air adjusting channel 9 is communicated with the auxiliary air opening 12, flowing air is discharged downwards after absorbing heat emitted by the ceramic matrix 2 through the auxiliary air opening 12, and the hot air heating range at the moment is the lower part of the ceramic heating lamp 1.
Embodiment two:
on the basis of the first embodiment, further description is made that the thickness of the graphite fiber layer 4 is larger than that of the heat-conducting armor annular cavity 5, the anti-falling cone blocks 14 embedded into the ceramic matrix 2 are symmetrically arranged on the inner wall of the air inlet 6, the anti-falling cone blocks 14 can fix the ceramic matrix 2 in a disengaging way and are used for improving the interfacial adhesion between the ceramic matrix 2 and the heating element 3, and meanwhile, the anti-falling cone blocks 14 are made of heat-conducting metal copper, so that heat in the ceramic matrix 2 can be transferred into the air inlet 6, and heat on the ceramic matrix 2 can be further emitted;
arc grooves 15 are arranged on the outer walls of the two sides of the ceramic matrix 2, the air outlet end of the air inlet 6 is communicated with the arc grooves 15 at the corresponding positions, and the arc grooves 15 are used for improving the heat exchange area of the flowing gas;
embodiment III:
on the basis of the first embodiment, further explanation is provided that two side walls inside the movable groove 7 are provided with limiting vertical grooves 16 which are communicated with the heat conduction armor annular cavity 5 at the corresponding position, and two sides of the air adjusting plate 8 are provided with protruding parts 17 which are matched with the limiting vertical grooves 16;
the air regulating channel 9 is of a T-shaped structure, the T edges at two sides of the air regulating channel 9 are air outlet parts and are communicated with the limiting vertical grooves 16, the two sides of the inner wall of the air inlet of the air regulating channel 9 are respectively provided with an anti-drop groove 18, the top of the limiting air pipe 11 is provided with a folded edge part and is in sliding fit in the anti-drop grooves 18, the distance between the limiting air pipe 11 and the anti-drop grooves 18 in the vertical displacement direction of the air regulating plate 8 can be limited, and the auxiliary air opening 12 is communicated with the limiting vertical grooves 16.
Embodiment four:
on the basis of the second embodiment, the upper part of the ceramic heating lamp 1 is provided with a gas distribution main pipe 19 and is communicated with the gas outlet end of the gas source part 13, the power end of the gas source part 13 is connected with an external power supply, the gas inlet end of the gas inlet pipe part 10 is connected with the gas distribution main pipe 19 through a gas guide pipe 20, the top wall of the inner side of the movable groove 7 is provided with a buffer layer 21 for preventing rigid collision between the air regulating plate 8 and the ceramic substrate 2, the buffer layer 21 is made of graphite fiber materials, the ceramic heating lamp has good heat conducting performance and can slow down the collided air regulating plate 8, the air regulating plate 8 is made of metal copper with good heat conducting performance, and meanwhile, for the heating element 3, the working temperature range of the ceramic heating element is limited to be 100-250 ℃ through an external temperature control switch;
the bottom end surface of the ceramic heating lamp 1 is provided with a heat dissipation plate 501, the heat dissipation plate 501 adopts any one of ceramic or heat conduction metal, the heat dissipation plate 501 is provided with an outer convex arc part 22, the outer convex arc part 22 can improve the heat dissipation range, the heat dissipation plate 501 is provided with a main hot air outlet 401, the outer convex arc part 22 is provided with an auxiliary hot air outlet 23, the heating element 3 section of the ceramic heater body 101 is arranged at the inner side of the outer convex arc part 22, the air outlets 6 distributed in the arc direction are arranged at the upper, middle and lower positions of the arc grooves 15, and the hot air exhaust flow can be led into the main hot air outlet 401 and the auxiliary hot air outlet 23 to be exhausted through the air outlets 6 and under the cooperation of the arc grooves 15; the hot air flow discharged from the auxiliary air port 12 can be discharged through the auxiliary hot air outlet hole 23.
The working principle is as follows: the ceramic heating lamp 1, the air source part 13 and the power end of the ceramic heater body 101 are connected with an external power supply, according to the installation height of the ceramic heating lamp 1 and the range position of a region to be heated, the A, B wind power levels of the air source part 13 are exchanged, firstly, the graphite fiber layer 4 is sleeved on the outer side of the heating element 3 in a ring shape and used for reducing the thermal stress transmitted to the ceramic matrix 2 by the heating element 3, further, the expansion coefficient requirements on the heating element 3 and the ceramic matrix 2 are reduced, and the manufacturing cost is saved;
when the air source part 13 provides the A wind power grade, the wind power value represented by A is larger than M, so that the upward air thrust generated by the air adjusting plate 8 is larger than the combination of the received gravity and the friction resistance, the air adjusting channel 9 is communicated with the heat conducting armor annular cavity 5, the heat of the heat conducting armor annular cavity 5 absorbed by the ceramic matrix 2 and the graphite fiber layer 4 is entrained by flowing air and discharged towards the periphery and the lower part through the air guiding opening 6, and the heating range of hot air is larger;
when the air source part 13 provides B wind power grade, the wind power value represented by B is smaller than or equal to M, the air regulating plate 8 cannot be blown by wind power, the air discharging end of the air regulating channel 9 is communicated with the auxiliary air opening 12, flowing air is discharged downwards after absorbing heat emitted by the ceramic matrix 2 through the auxiliary air opening 12, and the hot air heating range at the moment is the lower part of the ceramic heating lamp 1;
the anti-drop cone blocks 14 embedded in the two sides of the inner wall of the air guiding opening 6 can have a fixing effect on the ceramic matrix 2 when being separated, and can also transfer the heat in the ceramic matrix 2 into the air guiding opening 6, the arc-shaped groove 15 is used for improving the heat exchange area of the flowing air, and finally the discharged hot air flow can be introduced into the main hot air outlet 401 and the auxiliary hot air outlet 23 to be discharged through the air guiding opening 6 under the cooperation of the arc-shaped groove 15; the hot air flow discharged from the auxiliary air port 12 can be discharged through the auxiliary hot air outlet hole 23, so that the accumulation of heat in the ceramic matrix 2 is avoided, the peripheral heating range is larger, the generated heat can be introduced into the area to be heated below, the heating speed is improved, and the problems of cracks and stripping caused by expansion or contraction between the ceramic matrix 2 and the heating element 3 are solved.
The present embodiment provides a glow plug, including the ceramic heater provided in embodiment one, the ceramic heater body 101 is disposed inside the glow plug housing 201 in a matching manner, the glow plug housing 201 is disposed above the heat dissipation plate 501 in a matching manner, and the power end of the ceramic heater body 101 is connected with the built-in wire 301 of the ceramic heating lamp 1 through the glow plug housing 201.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a ceramic heater, includes the ceramic heater body of arranging and using in ceramic heating lamp, and the ceramic heater body includes ceramic base member and adopts U type mode to set up the heating element in its inside, its characterized in that: the graphite fiber layer is sleeved on the outer side of the heating element in an annular mode and used for reducing thermal stress transmitted to the ceramic matrix by the heating element, a heat-conducting armor annular cavity is embedded and arranged in the graphite fiber layer in the annular mode, and an air inlet penetrating through the ceramic matrix is arranged in an arc direction on the outer side wall of the heat-conducting armor annular cavity;
the bottom end surface of the ceramic matrix heating section is provided with a movable groove, the upper part of the movable groove can be provided with an air regulating plate in a limiting sliding manner, an air regulating channel is arranged on the air regulating plate, the inner side of the movable groove is parallel to the lower part between the two side edge parts of the heating element, an air inlet pipe part is arranged in a penetrating manner, the upper end surface of the air inlet pipe part is communicated with a limiting air pipe and is communicated with the air regulating channel at a corresponding position, auxiliary air inlets corresponding to the air inlet positions are arranged on the two side walls of the inner part of the movable groove, the air outlet end of the air regulating channel can be communicated with any one of a heat conducting armor annular cavity and the auxiliary air inlets, the air inlet end of the air inlet pipe part is connected with an external air source part, the air source part provides A, B two wind power levels, and A is more than B;
when the air source part provides the A wind power grade, the air regulating channel is communicated with the heat conducting armor annular cavity, and at the moment, the heat of the ceramic matrix and the graphite fiber layer absorbed by the heat conducting armor annular cavity is entrained by flowing air and discharged to the periphery and the lower side through the air guiding opening;
when the air source part provides the B wind power grade, the exhaust end of the air regulating channel is communicated with the auxiliary air port, and flowing air is discharged downwards after absorbing heat emitted by the ceramic matrix through the auxiliary air port.
2. A ceramic heater according to claim 1, wherein: the thickness of the graphite fiber layer is larger than that of the heat conduction armor annular cavity, and the inner wall of the induced air port is symmetrically provided with anti-drop cone blocks embedded into the ceramic matrix and used for improving the interfacial adhesion between the ceramic matrix and the heating element.
3. A ceramic heater according to claim 1, wherein: arc grooves are arranged on the outer walls of the two sides of the ceramic matrix, the air outlet end of the air inducing opening is communicated with the arc grooves at the corresponding positions, and the arc grooves are used for improving the heat exchange area of flowing gas.
4. A ceramic heater according to claim 1, wherein: limiting vertical grooves are arranged on two side walls of the inside of the movable groove and are communicated with the heat conduction armor annular cavity at the corresponding position, and protruding parts are arranged on two sides of the air adjusting port plate and are matched with the limiting vertical grooves;
the air regulating channel is of a T-shaped structure, the T edges on two sides of the air regulating channel are air outlet parts and are communicated with the limiting vertical grooves, the two sides of the inner wall of the air inlet of the air regulating channel are respectively provided with an anti-falling groove, the top of the limiting air pipe is provided with a flanging part and is in sliding fit with the anti-falling grooves, and the auxiliary air inlet is communicated with the limiting vertical grooves.
5. A ceramic heater according to claim 1, wherein: the upper part of the ceramic heating lamp is provided with a gas distribution main pipe and is communicated with the gas outlet end of the gas source part, the gas inlet end of the gas inlet pipe part is connected with the gas distribution main pipe through a gas guide pipe, and the top wall of the inner side of the movable groove is provided with a buffer layer and is used for preventing rigid collision between the air regulating port plate and the ceramic matrix.
6. A ceramic heater according to claim 3, wherein: the bottom end surface of the ceramic heating lamp is provided with a heat radiation plate, an outer convex arc part is arranged on the heat radiation plate, a main hot air outlet is arranged on the heat radiation plate, an auxiliary hot air outlet is arranged on the outer convex arc part, the heating element section of the ceramic heater body is arranged on the inner side of the outer convex arc part, the air outlets distributed in the arc direction are distributed on the upper, middle and lower positions of the arc grooves, and the hot air exhaust flow can be led into the main hot air outlet and the auxiliary hot air outlet through the air outlets; the hot air exhausted from the auxiliary air port can be exhausted through the auxiliary hot air outlet hole.
7. A glow plug, characterized by: the ceramic heater comprises the ceramic heater body according to any one of claims 1-6, wherein the ceramic heater body is matched and arranged inside a glow plug shell, the glow plug shell is matched and arranged above a heat dissipation plate, and a power end of the ceramic heater body is connected with an internal wire of a ceramic heating lamp through the glow plug shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310962595.8A CN116963326A (en) | 2023-08-02 | 2023-08-02 | Ceramic heater and glow plug |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310962595.8A CN116963326A (en) | 2023-08-02 | 2023-08-02 | Ceramic heater and glow plug |
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| CN116963326A true CN116963326A (en) | 2023-10-27 |
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| CN202310962595.8A Pending CN116963326A (en) | 2023-08-02 | 2023-08-02 | Ceramic heater and glow plug |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06168772A (en) * | 1992-12-01 | 1994-06-14 | Sharp Corp | Mounting device for ceramic heater |
| JP2001015251A (en) * | 1999-06-30 | 2001-01-19 | Shin Etsu Chem Co Ltd | Complex layer ceramic heater and its manufacture |
| US20020100753A1 (en) * | 2000-11-16 | 2002-08-01 | Johnsgard Kristian E. | Apparatuses and methods for resistively heating a thermal processing system |
| RU2208665C1 (en) * | 2002-03-21 | 2003-07-20 | Арзуманян Шаген Оганесович | Device for growing of refractory single crystals |
| US20060186110A1 (en) * | 2005-02-22 | 2006-08-24 | Mark Campello | Electric heater with resistive carbon heating elements |
| CN101933392A (en) * | 2008-01-29 | 2010-12-29 | 京瓷株式会社 | Ceramic heater and glow plug |
| US20120145699A1 (en) * | 2010-07-14 | 2012-06-14 | Let's Gel, Inc. | Heat Lamp |
| CN102511196A (en) * | 2009-10-27 | 2012-06-20 | 京瓷株式会社 | Ceramic heater |
| KR20130025752A (en) * | 2011-09-02 | 2013-03-12 | 쎄라텍(주) | Hair dryer having ceramic heater |
| KR20140104526A (en) * | 2013-02-18 | 2014-08-29 | 주식회사 토야테크 | A Heat Generator using Silicon Carbide Ceramic Heater of Honeycomb Structure |
| WO2017136288A1 (en) * | 2016-02-01 | 2017-08-10 | Ght Global Heating Technologies Ag | Ceramic matrix catalytic heat exchanger |
| CN211703757U (en) * | 2020-01-15 | 2020-10-20 | 魏玉和 | Graphite alkene hairdryer |
| CN212163749U (en) * | 2020-06-12 | 2020-12-15 | 句容市郭庄镇顺达陶瓷加热元件厂 | Ceramic heating lamp |
| CN115988686A (en) * | 2022-11-28 | 2023-04-18 | 徐州燃烧控制研究院有限公司 | Maintenance-free mesh electric heater |
| KR20230089612A (en) * | 2021-12-13 | 2023-06-21 | (주)은하 | Ventilation system including a photocatalyst with deodorizing and antibacterial functions and an electric damper with environmental adaptive emission control |
| CN219317237U (en) * | 2023-03-15 | 2023-07-07 | 中山市小石陶瓷刀片有限公司 | Ceramic heating body support, heating component and hot air component |
-
2023
- 2023-08-02 CN CN202310962595.8A patent/CN116963326A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06168772A (en) * | 1992-12-01 | 1994-06-14 | Sharp Corp | Mounting device for ceramic heater |
| JP2001015251A (en) * | 1999-06-30 | 2001-01-19 | Shin Etsu Chem Co Ltd | Complex layer ceramic heater and its manufacture |
| US20020100753A1 (en) * | 2000-11-16 | 2002-08-01 | Johnsgard Kristian E. | Apparatuses and methods for resistively heating a thermal processing system |
| RU2208665C1 (en) * | 2002-03-21 | 2003-07-20 | Арзуманян Шаген Оганесович | Device for growing of refractory single crystals |
| US20060186110A1 (en) * | 2005-02-22 | 2006-08-24 | Mark Campello | Electric heater with resistive carbon heating elements |
| CN101933392A (en) * | 2008-01-29 | 2010-12-29 | 京瓷株式会社 | Ceramic heater and glow plug |
| CN102511196A (en) * | 2009-10-27 | 2012-06-20 | 京瓷株式会社 | Ceramic heater |
| US20120145699A1 (en) * | 2010-07-14 | 2012-06-14 | Let's Gel, Inc. | Heat Lamp |
| KR20130025752A (en) * | 2011-09-02 | 2013-03-12 | 쎄라텍(주) | Hair dryer having ceramic heater |
| KR20140104526A (en) * | 2013-02-18 | 2014-08-29 | 주식회사 토야테크 | A Heat Generator using Silicon Carbide Ceramic Heater of Honeycomb Structure |
| WO2017136288A1 (en) * | 2016-02-01 | 2017-08-10 | Ght Global Heating Technologies Ag | Ceramic matrix catalytic heat exchanger |
| CN211703757U (en) * | 2020-01-15 | 2020-10-20 | 魏玉和 | Graphite alkene hairdryer |
| CN212163749U (en) * | 2020-06-12 | 2020-12-15 | 句容市郭庄镇顺达陶瓷加热元件厂 | Ceramic heating lamp |
| KR20230089612A (en) * | 2021-12-13 | 2023-06-21 | (주)은하 | Ventilation system including a photocatalyst with deodorizing and antibacterial functions and an electric damper with environmental adaptive emission control |
| CN115988686A (en) * | 2022-11-28 | 2023-04-18 | 徐州燃烧控制研究院有限公司 | Maintenance-free mesh electric heater |
| CN219317237U (en) * | 2023-03-15 | 2023-07-07 | 中山市小石陶瓷刀片有限公司 | Ceramic heating body support, heating component and hot air component |
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