CN203912216U - PTC heater for new energy electric vehicle - Google Patents
PTC heater for new energy electric vehicle Download PDFInfo
- Publication number
- CN203912216U CN203912216U CN201420291910.5U CN201420291910U CN203912216U CN 203912216 U CN203912216 U CN 203912216U CN 201420291910 U CN201420291910 U CN 201420291910U CN 203912216 U CN203912216 U CN 203912216U
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- CN
- China
- Prior art keywords
- ptc
- new energy
- pole piece
- energy electric
- aluminum pipe
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000000919 ceramic Substances 0.000 claims abstract description 57
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000000741 silica gel Substances 0.000 claims abstract description 19
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001884 aluminium oxide Inorganic materials 0.000 claims description 26
- 229920001721 Polyimide Polymers 0.000 abstract description 7
- 239000004642 Polyimide Substances 0.000 abstract description 7
- 229920000069 poly(p-phenylene sulfide) Polymers 0.000 abstract description 7
- 239000011810 insulating material Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011224 oxide ceramic Substances 0.000 abstract 4
- 229910052574 oxide ceramic Inorganic materials 0.000 abstract 4
- 238000007789 sealing Methods 0.000 description 10
- 238000009413 insulation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000789 fastener Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Abstract
The utility model discloses a PTC heater for a new energy electric vehicle. A PTC ceramic combination is disposed in an aluminum tube through an aluminum oxide ceramic block. According to the PTC heater, the groove-type aluminum oxide ceramic block with the thickness being 0.5 to 3 mm is adopted as the insulating material, the distance between electrode plates and the aluminum tube is increased, the capacitance is reduced, and the leakage current is reduced. Because polyimide insulating paper is used to wrap the outside of the aluminum oxide ceramic member, the insulating property is increased. The groove-structured aluminum oxide ceramic block is used to help realize positioning of the electrode sheets and electrodes on the surfaces of a PTC ceramic member, and thus an electrical arc caused by dislocation between the electrode sheets and the PTC electrodes is prevented. At openings of the aluminum tube, silica gel gaskets are fixed into the two end openings of the aluminum tube. When the aluminum tube is pressed, the silica gel gaskets are fully pressed tight and well sealed. Because the end openings of the aluminum tube are sealed by using silica gel and the end openings of the aluminum tube and a PPS supports are sealed by using silica gel, a problem of water leakage is solved, and the waterproof grade of the heater reaches above IP67.
Description
Technical field
The utility model relates to thermal sensitive ceramics technical field, is a kind of ptc heater for new energy electric motor vehicle specifically.
Background technology
Traditional insulated type ptc heater, that power-on and power-off pole piece is bonded in to some PTC pottery two sides with heat conductive silica gel, use again polyimide insulative paper as insulating barrier, PTC pottery and power-on and power-off pole piece are bundled together, then penetrate in square aluminium tube, through pressure pipe the upper radiator of bonding, then in two-port, coat silica gel sealing and form.
But in new-energy automobile application scenario, current this heater has some intrinsic shortcomings, specific as follows:
1, Leakage Current is large: owing to isolating by polyimide foam insulation between electrode slice and aluminum pipe, electrode slice and aluminum pipe form a capacitor, under alternating voltage, can there is a charging and discharging currents, the Leakage Current stack of this charging and discharging currents and insulating material, make the gross leak electric current of heater very large, the designing requirement that does not reach the heater of electric motor car.
2, the poor reliability of dielectric strength: due in assembling process, inevitably sneak into the impurity that some can destroy insulating paper, in process of production or long-term expanding with heat and contract with cold in the course of work, insulating paper can destroy, cause heater surfaces charged, cause potential safety hazard.
3, water resistance is poor: because aluminum pipe port only adopts silica gel sealing, the distance of sealing (degree of depth) is inadequate, easily causes immersion.
4, withstand voltage ageing properties is poor: due to electrode slice and PTC pottery, structurally can not locate, easily cause electrode slice and PTC malposition of electrode, after long-term use, PTC electrode and electrode slice edge can produce electric arc, cause insulation damages, finally may cause heater to puncture.
Therefore, need especially a kind of ptc heater for new energy electric motor vehicle, to solve problems of the prior art.
Utility model content
The purpose of this utility model is in order to solve in prior art, and the defect of the heater of a kind of applicable new-energy automobile application useless, provides a kind of ptc heater for new energy electric motor vehicle, solves problems of the prior art.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of ptc heater for new energy electric motor vehicle, comprise the PTC ceramic combination being formed by the pole piece that powers on, bottom electrode sheet and PTC pottery, the upper surface electrode of described PTC pottery and lower surface electrode are respectively by silica gel pole piece and the bottom electrode sheet of powering on that bond, a kind of ptc heater for new energy electric motor vehicle, also comprise aluminium oxide ceramics and aluminum pipe, described PTC ceramic combination is arranged in aluminum pipe by aluminium oxide ceramics.
In the utility model, also comprise insulating paper, described PTC ceramic combination is arranged in aluminum pipe by aluminium oxide ceramics and insulating paper successively by the direction in inner side to outside.
In the utility model, described aluminium oxide ceramics comprises fovea superior lid and recessed lid, and the upper notch of described fovea superior lid and the lower recess of recessed lid are connected, and make upper notch and lower recess be combined to form a ceramic chamber, in described ceramic chamber, PTC ceramic combination are set.
In the utility model, the arranged outside fin of described aluminum pipe.
In the utility model, being shaped as of described PTC pottery is rectangular-shaped.
In the utility model, described in the power on width of pole piece and the width of PTC pottery equate, the width of the width of described bottom electrode sheet and PTC pottery equates.
In the utility model, each corner angle of described PTC pottery arrange arc transition, described in the power on shape of pole piece and bottom electrode sheet be respectively rectangle, described in power on each corner angle of pole piece and bottom electrode sheet arc transition is set respectively.
In the utility model, also comprise aluminum pipe and insulating paper, when on described PTC pottery, bonding powers on pole piece and bottom electrode sheet, the outer wrap insulating paper of PTC pottery and the pole piece that powers on, the combination of bottom electrode sheet, and by insulating paper, be arranged in aluminum pipe, described in the electrode that the removable gap width of maximum of pole piece or bottom electrode sheet and inner side, the aluminum pipe left side or inner side, the right is less than on PTC pottery that powers on stay hem width degree.
Beneficial effect
The utility model adopts the grooved aluminium oxide ceramics of thickness 0.5～3mm as insulating material, has increased the distance between electrode slice and aluminum pipe, has greatly reduced electric capacity, has reduced Leakage Current; Can not adopt insulating paper, thoroughly avoid the problem of insulating paper wear out failure, strengthen insulation property; Also can be at aluminium oxide ceramics outer wrap polyimide insulative paper, insulation property have further been increased, adopted the alumina ceramic piece of trench structure, the location of having realized electrode slice and PTC electrode, prevents that the electric arc causing due to dislocation between electrode slice and PTC electrode from producing; At aluminum pipe mouth, adopt silica gel pad to be fixed in two aluminum pipe ports, after pressure pipe, silicone gasket is fully compressed, realized good sealing, and then at aluminum pipe port silica gel sealing, finally by aluminum pipe port and PPS support silica gel sealing, thoroughly solved seepy question, made more than heater classification of waterproof reaches IP67.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
The structural representation of Fig. 2 the utility model PTC ceramic combination;
The structural representation of Fig. 3 the utility model aluminum pipe;
The structural representation of Fig. 4 the utility model aluminium oxide ceramics;
The structural representation of Fig. 5 the utility model fovea superior lid;
The structural representation of the recessed lid of Fig. 6 the utility model;
Fig. 7 the utility model stays the structural representation of hem width degree.
Wherein: 1, the pole piece that powers on; 2, bottom electrode sheet; 3, PTC pottery; 4, PTC ceramic combination; 5, electrode; 6, silica gel; 7, aluminium oxide ceramics; 8, aluminum pipe; 9, insulating paper; 10, fovea superior lid; 11, recessed lid; 12, upper notch; 13, lower recess; 14, ceramic chamber; 15, fin; 16, electrode stays hem width degree.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the utility model is further described.
Embodiment
Referring to Fig. 1 to Fig. 7, a kind of ptc heater for new energy electric motor vehicle, comprise by the pole piece 1 that powers on, bottom electrode sheet 2 and the PTC pottery 3 PTC ceramic combination 4 that form, (upper surface electrode and lower surface electrode are referred to as below: PTC ceramic surface electrode 5) respectively by silica gel 6 bonding power on pole piece 1 and bottom electrode sheet 2 for the upper surface electrode of PTC pottery 3 and lower surface electrode, a kind of ptc heater for new energy electric motor vehicle, also comprise aluminium oxide ceramics 7 and aluminum pipe 8, PTC ceramic combination 4 is arranged in aluminum pipe 8 by aluminium oxide ceramics 7; The inner width of aluminium oxide ceramics 7 grooves is just in time held PTC ceramic combination 4, realizes the location powering between pole piece 1, bottom electrode sheet 2 and PTC pottery 3.Meanwhile, aluminum pipe 8 inside are made with locating fastener (not shown), realize the location of aluminium oxide ceramics; The edge of aluminium oxide ceramics 7 arranges chamfering, avoids the friction with insulating paper.
For a ptc heater for new energy electric motor vehicle, also comprise insulating paper 9, PTC ceramic combination 4 is arranged in aluminum pipe 8 by aluminium oxide ceramics 7 and insulating paper 9 successively by the direction in inner side to outside; Preferred embodiment, insulating paper 9 is polyimide insulative paper, insulating paper 9 also can be converted into grooved, makes easy to assembly.
Aluminium oxide ceramics 7 comprises fovea superior lid 10 and recessed lid 11, and the upper notch 12 of fovea superior lid 10 and the lower recess 13 of recessed lid 11 are connected, and make upper notch 12 and lower recess 13 be combined to form a ceramic chamber 14, the interior PTC ceramic combination 4 that arranges in ceramic chamber 14.
The arranged outside fin 15 of aluminum pipe 8; Reach good radiating effect.
Being shaped as of PTC pottery 3 is rectangular-shaped; For the utility model preferred embodiment.
The power on width of pole piece 1 and the width of PTC pottery 3 equate, the width of the width of bottom electrode sheet 2 and PTC pottery 3 equates.
Each corner angle of PTC pottery 3 arrange arc transition, and the shape of power on pole piece 1 and bottom electrode sheet 2 is respectively rectangle, and each corner angle of power on pole piece 1 and bottom electrode sheet 2 arrange respectively arc transition; In an embodiment, the pole piece 1 that powers on, bottom electrode sheet 2 and PTC pottery 3 arc transition in the same size, reaches neat technique effect; In preferred alternative, the arc transition of power on pole piece 1 and bottom electrode sheet 2 is greater than the arc transition of PTC pottery 3.
A kind of ptc heater for new energy electric motor vehicle, also comprise aluminum pipe 8 and insulating paper 9, when on PTC pottery 3, bonding powers on pole piece 1 and bottom electrode sheet 2, the outer wrap insulating paper 9 of PTC pottery 3 and the pole piece 1 that powers on, 2 combinations of bottom electrode sheet, and be arranged in aluminum pipe 8 by insulating paper 9, the electrode that the removable gap width of maximum of power on pole piece 1 or bottom electrode sheet 2 and aluminum pipe 8 inner sides, the left sides or inner side, the right is less than on PTC pottery 3 stays hem width degree 16; PTC ceramic surface electrode 5 does not cover top or the bottom of PTC pottery 3 completely, PTC ceramic surface electrode 5 is arranged on the PTC pottery middle part on 3 tops and the middle part of bottom, therefore, on PTC pottery 3, certain surplus is left in the both sides of PTC ceramic surface electrode 5, and the surplus of both sides is respectively that electrode stays hem width degree 16.
Several heaters of making are above assemblied in metal framework by PPS support, metal framework is designed to 2 air outlets, mid portion is wire junction, heater is separately fixed in 2 air outlets, and the long assembling difficulty causing of heater length and the problem of poor reliability have been avoided in this design.
PPS support is except fixed heater, also played the effect of insulation isolation, make in design especially the outstanding metal framework of PPS plastics edge, make more than creepage distance reaches 3mm, guarantee can bear between the radiator of heater and metal framework the insulation high pressure of 3500VAC/1min.
In the fixed form of heater, the step screw of having gone back special design, makes the tail end of heater in suspended state, prevents expanding with heat and contract with cold of heater and causes the deformation and failure of heater.
Finally, to heater two ends and wire junction, adopt silica gel perfusion sealing, prevent immersion.
The grooved aluminium oxide ceramics 7 that the utility model employing thickness is 0.5～3mm, as insulating material, has increased the distance between the pole piece 1 that powers on, bottom electrode sheet 2 and aluminum pipe 8, has greatly reduced electric capacity, has reduced Leakage Current.For further reinforced insulation performance, can be at the insulating paper 9 of grooved aluminium oxide ceramics 7 coated outside polyimides materials, or in the inner side of grooved aluminium oxide ceramics 7, place the insulating paper 9 of polyimides material; Meanwhile, if adopt thickness 2～3mm grooved aluminium oxide ceramics as insulating barrier, can not adopt insulating paper, thoroughly avoid the problem of insulating paper wear out failure, the edge of aluminium oxide ceramics 7 arranges chamfering, avoids the friction with insulating paper.
Adopted the aluminium oxide ceramics 7 of trench structure, realized the location of the pole piece 1 that powers on, bottom electrode sheet 2 and PTC ceramic surface electrode 5, prevented that electric arc between the two from producing.Meanwhile, in aluminum pipe 8, be also provided with locating fastener, the location of realizing aluminium oxide ceramics 7 and aluminum pipe 8.
Adopt silica gel pad (not shown) to be fixed in the port of two aluminum pipes 8, after pressure pipe, silica gel pad is fully compressed, realized good sealing, and then at the port silica gel sealing of aluminum pipe 8, finally, by the port of aluminum pipe 8 and PPS support (not shown) silica gel sealing, thoroughly solved seepy question, made more than heater classification of waterproof reaches IP67.
Adopt stainless steel frame, left and right perforate, the structure that central conductor is drawn, if adopt single port air-out, heater length can be very long, easily crooked.
After PPS support is installed, more than the outstanding stainless steel framework 3mm in edge, guarantee creepage distance enough between stainless steel framework and heat sink strip.
The utility model ptc heater has following advantage:
1, Leakage Current is less than 0.5m A/KW, or 0.5m A/500mm;
2, the reliability of dielectric strength is high, more than reaching 3000VAC;
3, more than water resistance reaches IP67;
4, withstand voltage ageing properties is good, and the life-span is long;
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art are according to announcement of the present utility model, and not departing from the improvement that the utility model category makes and revise all should be within protection range of the present utility model.
Claims (8)
1. the ptc heater for new energy electric motor vehicle, comprise the PTC ceramic combination being formed by the pole piece that powers on, bottom electrode sheet and PTC pottery, the upper surface electrode of described PTC pottery and lower surface electrode are respectively by silica gel pole piece and the bottom electrode sheet of powering on that bond, it is characterized in that, also comprise aluminium oxide ceramics and aluminum pipe, described PTC ceramic combination is arranged in aluminum pipe by aluminium oxide ceramics.
2. a kind of ptc heater for new energy electric motor vehicle according to claim 1, is characterized in that, also comprises insulating paper, and described PTC ceramic combination is arranged in aluminum pipe by aluminium oxide ceramics and insulating paper successively by the direction in inner side to outside.
3. a kind of ptc heater for new energy electric motor vehicle according to claim 1 and 2, it is characterized in that: described aluminium oxide ceramics comprises fovea superior lid and recessed lid, the upper notch of described fovea superior lid and the lower recess of recessed lid are connected, make upper notch and lower recess be combined to form a ceramic chamber, in described ceramic chamber, PTC ceramic combination is set.
4. a kind of ptc heater for new energy electric motor vehicle according to claim 3, is characterized in that: the arranged outside fin of described aluminum pipe.
5. a kind of ptc heater for new energy electric motor vehicle according to claim 4, is characterized in that: being shaped as of described PTC pottery is rectangular-shaped.
6. a kind of ptc heater for new energy electric motor vehicle according to claim 5, is characterized in that: described in the width of pole piece that powers on equate with the width of PTC pottery, the width of the width of described bottom electrode sheet and PTC pottery equates.
7. a kind of ptc heater for new energy electric motor vehicle according to claim 6, it is characterized in that: each corner angle of described PTC pottery arrange arc transition, the described shape that powers on pole piece and bottom electrode sheet is respectively rectangle, described in power on each corner angle of pole piece and bottom electrode sheet arc transition is set respectively.
8. a kind of ptc heater for new energy electric motor vehicle according to claim 7, it is characterized in that, also comprise aluminum pipe and insulating paper, when on described PTC pottery, bonding powers on pole piece and bottom electrode sheet, the outer wrap insulating paper of PTC pottery and the pole piece that powers on, the combination of bottom electrode sheet, and by insulating paper, be arranged in aluminum pipe, described in the electrode that the removable gap width of maximum of pole piece or bottom electrode sheet and inner side, the aluminum pipe left side or inner side, the right is less than on PTC pottery that powers on stay hem width degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291910.5U CN203912216U (en) | 2014-06-03 | 2014-06-03 | PTC heater for new energy electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291910.5U CN203912216U (en) | 2014-06-03 | 2014-06-03 | PTC heater for new energy electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203912216U true CN203912216U (en) | 2014-10-29 |
Family
ID=51786457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291910.5U Active CN203912216U (en) | 2014-06-03 | 2014-06-03 | PTC heater for new energy electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203912216U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257154A (en) * | 2015-06-19 | 2016-12-28 | 上海帕克热敏陶瓷有限公司 | A kind of Instant heating type PTC water heater |
| CN106813372A (en) * | 2017-02-27 | 2017-06-09 | 上海帕克热敏陶瓷有限公司 | A kind of new-energy automobile integrated form liquid heater |
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
| DE102018209777A1 (en) * | 2018-06-18 | 2019-12-19 | Mahle International Gmbh | PTC heating module |
-
2014
- 2014-06-03 CN CN201420291910.5U patent/CN203912216U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257154A (en) * | 2015-06-19 | 2016-12-28 | 上海帕克热敏陶瓷有限公司 | A kind of Instant heating type PTC water heater |
| CN106813372A (en) * | 2017-02-27 | 2017-06-09 | 上海帕克热敏陶瓷有限公司 | A kind of new-energy automobile integrated form liquid heater |
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
| DE102018209777A1 (en) * | 2018-06-18 | 2019-12-19 | Mahle International Gmbh | PTC heating module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |