CN109986929A - A kind of high-efficiency vehicle-mounted metal PTC heater - Google Patents

A kind of high-efficiency vehicle-mounted metal PTC heater Download PDF

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Publication number
CN109986929A
CN109986929A CN201910318036.7A CN201910318036A CN109986929A CN 109986929 A CN109986929 A CN 109986929A CN 201910318036 A CN201910318036 A CN 201910318036A CN 109986929 A CN109986929 A CN 109986929A
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CN
China
Prior art keywords
heat generating
core
die casting
cavity
metal heat
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Pending
Application number
CN201910318036.7A
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Chinese (zh)
Inventor
李述录
周忠川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Furuian Electronics Co Ltd
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Chongqing Furuian Electronics Co Ltd
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Publication date
Application filed by Chongqing Furuian Electronics Co Ltd filed Critical Chongqing Furuian Electronics Co Ltd
Priority to CN201910318036.7A priority Critical patent/CN109986929A/en
Publication of CN109986929A publication Critical patent/CN109986929A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/22Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2218Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)

Abstract

The invention discloses a kind of high-efficiency vehicle-mounted metal PTC heaters, including outer casing upper cover and shell lower cover, outer casing upper cover is mounted under shell on lid, outer casing upper cover and shell lower cover form the cavity of sealing, thermal insulation board is equipped in the cavity, the cavity is separated into independent upper cavity and lower chamber by thermal insulation board;There is control circuit board in the upper cavity, there is die casting core and metal heat generating core in the lower chamber, the metal heat generating core is located in the die casting core, the metal heat generating core and control circuit board electrical connection.The present invention has many advantages, such as that thermal conversion rate is high, heat source temperature is high.

Description

A kind of high-efficiency vehicle-mounted metal PTC heater
Technical field
The present invention relates to ptc heaters, belong to a kind of high-efficiency vehicle-mounted metal PTC heater.
Background technique
Vehicle PTC water-warming heater is to follow the heating system of fuel-engined vehicle using electric energy heating anti-icing fluid, solves defrosting A series of problems, such as with compartment heating, battery thermal.Currently, ptc heater on the market is all using PTC ceramics as fever Source, it is principal component that ceramic PTC, which is by barium titanate (or strontium, lead), adds a small amount of alms giver (Y, Nb, Bi, Sb), acceptor (Mn, Fe) member The additives such as element and glass (silica, aluminium oxide), through semiconductive ceramic made of oversintering.This kind of ptc heater heat turns Rate is changed generally in 89%-92%, and is capable of providing the heat source of 250 degrees centigrades, the lower, heat source temperature with thermal conversion rate The disadvantages of lower.
Summary of the invention
The object of the present invention is to provide a kind of high-efficiency vehicle-mounted metal PTC heaters, have thermal conversion rate height, heat source temperature Spend the advantages that high.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of high-efficiency vehicle-mounted metal PTC heater, including outer casing upper cover and shell lower cover, outer casing upper cover are mounted under shell It covers, outer casing upper cover and shell lower cover form the cavity sealed, thermal insulation board are equipped in the cavity, thermal insulation board divides the cavity It is divided into independent upper cavity and lower chamber;There is control circuit board in the upper cavity, there is die casting core in the lower chamber With metal heat generating core, the metal heat generating core is located in the die casting core, the metal heat generating core and the control circuit board Electrical connection;Control circuit board includes low voltage connector, linear voltage regulator, CAN module, microprocessor, temperature sensor, IGBT drive Dynamic, IGBT, current detection circuit and high-tension connector, linear voltage regulator and CAN module are electrically connected with the low voltage connector, Linear voltage regulator and CAN module and the microprocessor electrical connection, temperature sensor, current detection circuit and IGBT driving and The microprocessor electrical connection, IGBT drives and current detection circuit is sent out with IGBT electrical connection, IGBT and the metal Hot core electrical connection, metal heat generating core and the current detection circuit are electrically connected with the high-tension connector.
In a kind of high-efficiency vehicle-mounted metal PTC heater above-mentioned, the metal heat generating core is spiral, spiral helicine metal Heat conducting pipe is arranged in heat generating core, heat conducting pipe runs through the die casting core.
In order to promote the contact area of conduction oil and the die casting core, heat transfer efficiency, a kind of efficient vehicle above-mentioned are promoted It carries in metal PTC heater, the top of the lower chamber, the height of the die casting core is fixed at the top of the die casting core Less than the height of the lower chamber, the width of the die casting core is less than the width of the lower chamber, the length of the die casting core Degree is less than the length of the lower chamber.
In a kind of high-efficiency vehicle-mounted metal PTC heater above-mentioned, it is covered with seal groove under the shell, in the seal groove Equipped with sealing strip, sealing strip is located on the shell between lid and shell lower cover, and outer casing upper cover and shell lower cover clamp the sealing strip.
In a kind of high-efficiency vehicle-mounted metal PTC heater above-mentioned, the outer casing upper cover is equipped with air hole.
In a kind of high-efficiency vehicle-mounted metal PTC heater above-mentioned, one end of the shell lower cover is equipped with thermally conductive import, described The other end of shell lower cover is equipped with catheter outlet.
Linear voltage regulator is a kind of linear voltage regulator for meeting vehicle rule and requiring, and inputs 12V from low voltage connector, exports 5v, 5V power supply is provided for other chips of this module.
CAN module transmits relevant data information using CAN chip, is to prevent automobile within the service life phase due to number Danger is caused to driver according to exchange mistake, the security system of automobile requires data to transmit safety with higher.If number It is sufficiently high according to the reliability of transmission, or if the error in data that left behind is sufficiently low, this target is not difficult to realize.From bus From the point of view of system data, reliability it is to be understood that transmission process generate error in data recognition capability.Residual data The probability of mistake can be obtained by the statistical measurement to data transmission credibility.It describe transmission data be destroyed with it is this Destroy the probability that cannot be detected.Residual data error probability must be very small, makes it in the entire life cycle of system, It is nearly no detectable when by average statistics.Calculating residual error probability demands can classify to error in data, and data Transmission path can be described by a model.If determining the residual error probability of CAN, we can using the probability of residual errors as The function of bit-errors probability when being transmitted with 80~90 messages, and assume there are 5~10 stations in this system, and mistake Rate is 1/1000, then dominant bit error probability is 10-13 orders of magnitude.For example, the data transmission rate of CAN network is up to 1Mbps is for working life 4000 hours, average message length if data transmission capabilities are used only 50% 80 systems, the total amount of data transmitted are 9 × 1010.Within the system service life phase, undetectable error of transmission Statistical average is less than 10-2 magnitudes.In other words, a system is pressed annual 365 days, and work 8 hours, error rate per second are daily 0.7 calculates, then pressing statistical average, a undetectable mistake can just occur within every 1000.
Microcontroller, also known as one chip microcomputer (Single Chip Microcomputer) or single-chip microcontroller, are handles Central processing unit (Central Process Unit;CPU frequency) and specification do appropriate reduction, and by memory (memory), The perimeter interfaces such as counter (Timer), USB, A/D conversion, UART, PLC, DMA or even LCD driving circuit are all incorporated into single On chip, the computer of chip-scale is formed, does various combination control for different applications.
IGBT driving is driving IGBT module so that it can be allowed to work normally, and the circuit protected simultaneously to it.Insulation Grid bipolar junction transistor (IGBT) has been widely used in the field of power electronics of today, removes in actual use Outside IGBT itself, the effect of IGBT driver is same most important for entire commutation system.The selection and output of driver The calculating of power determines the reliability of commutation system.
Current detection circuit designs based entirely on the principle of hall sensing, by an accurate low offset linear hall sensing Device circuit and the copper foil composition (as shown below) for being located adjacent to the surface IC, when electric current flows through copper foil, generate a magnetic field, Hall Element goes out a linear voltage signal according to magnetic field induction, by internal amplification, filtering, copped wave and amendment circuit, output One voltage signal, the signal are exported from the 7th foot of chip, directly reflect the size for flowing through copper foil current.
The principle of metal heat generating core fever is the fuel factor of electric current.The fuel factor of electric current: when electric current passes through resistance, electric current It does work and consumes electric energy, produce heat, this phenomenon is called the fuel factor of electric current.
Compared with prior art, the present invention has many advantages, such as that thermal conversion rate is high, heat source temperature is high.After tested, due to comparing The contact area with conduction oil is increased in ceramic PTC, thermal conversion rate is up to 95%, and heat source temperature is up to 600 degrees Celsius.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the invention;
Fig. 2 is explosive view of the invention;
Fig. 3 is control system schematic diagram of the present invention.
Appended drawing reference: 1- high-tension connector, 2- outer casing upper cover, 3- die casting core, 4- sealing strip, 5- metal heat generating core, 6- Shell lower cover, 7- low voltage connector, 8- linear voltage regulator, 9-CAN module, 10- microprocessor, 11- temperature sensor, 12- IGBT driving, 13- current detection circuit, 14- control circuit board, 15- thermal insulation board, 16-IGBT.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
The embodiment of the present invention 1: a kind of high-efficiency vehicle-mounted metal PTC heater, including outer casing upper cover 2 and shell lower cover 6, outside Shell upper cover 2 is mounted on shell lower cover 6, and outer casing upper cover 2 and shell lower cover 6 form the cavity of sealing, be equipped in the cavity every The cavity is separated into independent upper cavity and lower chamber by hot plate 15, thermal insulation board 15;There is control circuit in the upper cavity Plate 14, the lower chamber is interior to have die casting core 3 and metal heat generating core 5, and the metal heat generating core 5 is located at the die casting core 3 Interior, the metal heat generating core 5 and the control circuit board 14 are electrically connected;Control circuit board 14 includes low voltage connector 7, linear steady Depressor 8, CAN module 9, microprocessor 10, temperature sensor 11, IGBT driving 12, IGBT16, current detection circuit 13 and high pressure Connector 1, linear voltage regulator 8 and CAN module 9 are electrically connected with the low voltage connector 7, linear voltage regulator 8 and CAN module 9 It is electrically connected with the microprocessor 10, temperature sensor 11, current detection circuit 13 and IGBT drive the 12 equal and described micro processs Device 10 is electrically connected, and IGBT driving 12 and current detection circuit 13 are electrically connected with the IGBT16, IGBT16 and metal hair Hot core 5 is electrically connected, and metal heat generating core 5 and the current detection circuit 13 are electrically connected with the high-tension connector 1.
Embodiment 2: a kind of high-efficiency vehicle-mounted metal PTC heater, including outer casing upper cover 2 and shell lower cover 6, outer casing upper cover 2 It being mounted on shell lower cover 6, outer casing upper cover 2 and shell lower cover 6 form the cavity sealed, it is equipped with thermal insulation board 15 in the cavity, The cavity is separated into independent upper cavity and lower chamber by thermal insulation board 15;There is control circuit board 14, institute in the upper cavity Stating has die casting core 3 and metal heat generating core 5 in lower chamber, the metal heat generating core 5 is located in the die casting core 3, described Metal heat generating core 5 and the control circuit board 14 are electrically connected;Control circuit board 14 include low voltage connector 7, linear voltage regulator 8, CAN module 9, microprocessor 10, temperature sensor 11, IGBT driving 12, IGBT16, current detection circuit 13 and high-tension connector 1, linear voltage regulator 8 and CAN module 9 are and the low voltage connector 7 electrical connection, linear voltage regulator 8 and CAN module 9 and described Microprocessor 10 is electrically connected, temperature sensor 11, current detection circuit 13 and equal and described 10 electricity of microprocessor of IGBT driving 12 Connection, IGBT driving 12 and current detection circuit 13 are electrically connected with the IGBT16,5 electricity of IGBT16 and the metal heat generating core Connection, metal heat generating core 5 and the current detection circuit 13 are electrically connected with the high-tension connector 1.
The metal heat generating core 5 is spiral, is arranged with heat conducting pipe in spiral helicine metal heat generating core 5, heat conducting pipe runs through The die casting core 3.The top of the die casting core 3 is fixed on the top of the lower chamber, and the height of the die casting core 3 is small In the height of the lower chamber, the width of the die casting core 3 is less than the width of the lower chamber, the length of the die casting core 3 Degree is less than the length of the lower chamber.
Embodiment 3: a kind of high-efficiency vehicle-mounted metal PTC heater, including outer casing upper cover 2 and shell lower cover 6, outer casing upper cover 2 It being mounted on shell lower cover 6, outer casing upper cover 2 and shell lower cover 6 form the cavity sealed, it is equipped with thermal insulation board 15 in the cavity, The cavity is separated into independent upper cavity and lower chamber by thermal insulation board 15;There is control circuit board 14, institute in the upper cavity Stating has die casting core 3 and metal heat generating core 5 in lower chamber, the metal heat generating core 5 is located in the die casting core 3, described Metal heat generating core 5 and the control circuit board 14 are electrically connected;Control circuit board 14 include low voltage connector 7, linear voltage regulator 8, CAN module 9, microprocessor 10, temperature sensor 11, IGBT driving 12, IGBT16, current detection circuit 13 and high-tension connector 1, linear voltage regulator 8 and CAN module 9 are and the low voltage connector 7 electrical connection, linear voltage regulator 8 and CAN module 9 and described Microprocessor 10 is electrically connected, temperature sensor 11, current detection circuit 13 and equal and described 10 electricity of microprocessor of IGBT driving 12 Connection, IGBT driving 12 and current detection circuit 13 are electrically connected with the IGBT16,5 electricity of IGBT16 and the metal heat generating core Connection, metal heat generating core 5 and the current detection circuit 13 are electrically connected with the high-tension connector 1.
The metal heat generating core 5 is spiral, is arranged with heat conducting pipe in spiral helicine metal heat generating core 5, heat conducting pipe runs through The die casting core 3.The top of the die casting core 3 is fixed on the top of the lower chamber, and the height of the die casting core 3 is small In the height of the lower chamber, the width of the die casting core 3 is less than the width of the lower chamber, the length of the die casting core 3 Degree is less than the length of the lower chamber.
The shell lower cover 6 is equipped with seal groove, is equipped with sealing strip 4 in the seal groove, sealing strip 4 is located on the shell lid 2 Between shell lower cover 6, outer casing upper cover 2 and shell lower cover 6 clamp the sealing strip 4.The outer casing upper cover 2 is equipped with ventilative Hole.One end of the shell lower cover 6 is equipped with thermally conductive import, and the other end of the shell lower cover 6 is equipped with catheter outlet.
A kind of working principle of embodiment of the invention:
A. power supply is by after low voltage connector 7, reaching linear voltage regulator 8, after linear voltage-stablizer 8, to CAN module, micro- Processor, IGBT driving, current detection circuit power supply;
B. after external high pressure power supply passes through high-tension connector 1, by IGBT16 after metal heat generating core 5, using electric current Detection circuit 13 returns to high-tension connector 1;
C. external module instruction is transmitted to the parsing of CAN module 9 by low voltage connector 7, is supplied to the processing of microprocessor 10; Current detection circuit 13 and temperature sensor 11 provide data to 10 analytical judgment of microprocessor processing;The output control of microprocessor 10 The signal of IGBT driving 12 processed, the signal after IGBT driving 12 goes control IGBT16 on-off again, to control metal heat generating core 5 Work with do not work.When temperature sensor 11 detects that ptc heater temperature higher than preset value, then can be controlled by IGBT16 Metal heat generating core 5 powers off, and prevents 5 temperature of metal heat generating core from further increasing, thus the security performance of lifting means.Microprocessor 10 instruction is transmitted to the parsing of CAN module 9, by being transmitted to external module again after low voltage connector 7.
Conduction oil enters lower chamber from thermally conductive import, and conduction oil is contacted in lower chamber and the die casting core 3, absorbs die casting Then the heat of core 3 flows out to promote temperature from catheter outlet.

Claims (6)

1. a kind of high-efficiency vehicle-mounted metal PTC heater, which is characterized in that including outer casing upper cover (2) and shell lower cover (6), shell Upper cover (2) is mounted on shell lower cover (6), the cavity of outer casing upper cover (2) and shell lower cover (6) formation sealing, in the cavity Equipped with thermal insulation board (15), the cavity is separated into independent upper cavity and lower chamber by thermal insulation board (15);Tool in the upper cavity Have control circuit board (14), there is die casting core (3) and metal heat generating core (5), the metal heat generating core (5) in the lower chamber In the die casting core (3), the metal heat generating core (5) and the control circuit board (14) electrical connection;Control circuit board (14) include low voltage connector (7), linear voltage regulator (8), CAN module (9), microprocessor (10), temperature sensor (11), IGBT drives (12), IGBT (16), current detection circuit (13) and high-tension connector (1), linear voltage regulator (8) and CAN module (9) electric with the low voltage connector (7) electrical connection, linear voltage regulator (8) and CAN module (9) and the microprocessor (10) Connection, temperature sensor (11), current detection circuit (13) and IGBT driving (12) are electrically connected with the microprocessor (10), IGBT drives (12) and current detection circuit (13) and the IGBT (16) electrical connection, IGBT (16) and the metal heat generating core (5) it is electrically connected, metal heat generating core (5) and the current detection circuit (13) are electrically connected with the high-tension connector (1).
2. a kind of high-efficiency vehicle-mounted metal PTC heater according to claim 1, which is characterized in that the metal heat generating core (5) spiral, heat conducting pipe is arranged in spiral helicine metal heat generating core (5), heat conducting pipe runs through the die casting core (3).
3. a kind of high-efficiency vehicle-mounted metal PTC heater according to claim 1, which is characterized in that the die casting core (3) Top be fixed on the top of the lower chamber, the height of the die casting core (3) is less than the height of the lower chamber, the pressure The width for casting core (3) is less than the width of the lower chamber, and the length of the die casting core (3) is less than the length of the lower chamber Degree.
4. a kind of high-efficiency vehicle-mounted metal PTC heater according to claim 1, which is characterized in that the shell lower cover (6) Equipped with seal groove, be equipped with sealing strip (4) in the seal groove, sealing strip (4) be located on the shell lid (2) and shell lower cover (6) it Between, outer casing upper cover (2) and shell lower cover (6) clamp the sealing strip (4).
5. a kind of high-efficiency vehicle-mounted metal PTC heater according to claim 1, which is characterized in that the outer casing upper cover (2) It is equipped with air hole.
6. a kind of high-efficiency vehicle-mounted metal PTC heater according to claim 1, which is characterized in that the shell lower cover (6) One end be equipped with thermally conductive import, the other end of the shell lower cover (6) is equipped with catheter outlet.
CN201910318036.7A 2019-04-19 2019-04-19 A kind of high-efficiency vehicle-mounted metal PTC heater Pending CN109986929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910318036.7A CN109986929A (en) 2019-04-19 2019-04-19 A kind of high-efficiency vehicle-mounted metal PTC heater

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Application Number Priority Date Filing Date Title
CN201910318036.7A CN109986929A (en) 2019-04-19 2019-04-19 A kind of high-efficiency vehicle-mounted metal PTC heater

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR20080005438U (en) * 2007-05-14 2008-11-19 최홍천 Metal Positive Temperature Coefficient Heater for heating a gas or air
US20120315024A1 (en) * 2009-11-09 2012-12-13 Dbk David + Baader Gmbh Electric heater
CN103052181A (en) * 2011-10-11 2013-04-17 上海华族实业有限公司 Metal ceramic hybrid PTC (Positive Temperature Coefficient) fast electric heater
CN103344034A (en) * 2013-07-18 2013-10-09 东风汽车公司 High-voltage PTC liquid heater for automobile air conditioner system
US20130286526A1 (en) * 2012-04-26 2013-10-31 Calsonic Kansei Corporation Vehicle safety device
CN103542528A (en) * 2012-07-13 2014-01-29 比亚迪股份有限公司 Electric heating device and electric vehicle
CN107105527A (en) * 2017-06-22 2017-08-29 苏州新智机电工业有限公司 A kind of automotive air-conditioning system ptc heater
CN107894093A (en) * 2017-12-08 2018-04-10 深圳市赛尔盈电子有限公司 A kind of detachable ptc heater
CN207354640U (en) * 2017-08-30 2018-05-11 北汽银翔汽车有限公司 A kind of automobile-used PTC heating modules
CN207622253U (en) * 2017-12-08 2018-07-17 深圳市赛尔盈电子有限公司 A kind of novel PTC liquid heater
CN207657557U (en) * 2017-12-14 2018-07-27 孝感华工高理电子有限公司 A kind of high pressure PTC heating control systems of electric automobile air conditioner
US20180252432A1 (en) * 2015-09-09 2018-09-06 Calsonic Kansei Corporation Fluid-heating device and manufacturing method thereof
CN108638795A (en) * 2018-03-21 2018-10-12 安徽省宁国市天成电气有限公司 A kind of new-energy automobile heat management resistance wire liquid heater
CN209813673U (en) * 2019-04-19 2019-12-20 重庆福睿安电子有限公司 High-efficient on-vehicle metal PTC heater

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020124847A1 (en) * 2000-03-21 2002-09-12 Smith Daniel John Humidified gases delivery apparatus
KR20080005438U (en) * 2007-05-14 2008-11-19 최홍천 Metal Positive Temperature Coefficient Heater for heating a gas or air
US20120315024A1 (en) * 2009-11-09 2012-12-13 Dbk David + Baader Gmbh Electric heater
CN103052181A (en) * 2011-10-11 2013-04-17 上海华族实业有限公司 Metal ceramic hybrid PTC (Positive Temperature Coefficient) fast electric heater
US20130286526A1 (en) * 2012-04-26 2013-10-31 Calsonic Kansei Corporation Vehicle safety device
CN103542528A (en) * 2012-07-13 2014-01-29 比亚迪股份有限公司 Electric heating device and electric vehicle
CN103344034A (en) * 2013-07-18 2013-10-09 东风汽车公司 High-voltage PTC liquid heater for automobile air conditioner system
US20180252432A1 (en) * 2015-09-09 2018-09-06 Calsonic Kansei Corporation Fluid-heating device and manufacturing method thereof
CN107105527A (en) * 2017-06-22 2017-08-29 苏州新智机电工业有限公司 A kind of automotive air-conditioning system ptc heater
CN207354640U (en) * 2017-08-30 2018-05-11 北汽银翔汽车有限公司 A kind of automobile-used PTC heating modules
CN107894093A (en) * 2017-12-08 2018-04-10 深圳市赛尔盈电子有限公司 A kind of detachable ptc heater
CN207622253U (en) * 2017-12-08 2018-07-17 深圳市赛尔盈电子有限公司 A kind of novel PTC liquid heater
CN207657557U (en) * 2017-12-14 2018-07-27 孝感华工高理电子有限公司 A kind of high pressure PTC heating control systems of electric automobile air conditioner
CN108638795A (en) * 2018-03-21 2018-10-12 安徽省宁国市天成电气有限公司 A kind of new-energy automobile heat management resistance wire liquid heater
CN209813673U (en) * 2019-04-19 2019-12-20 重庆福睿安电子有限公司 High-efficient on-vehicle metal PTC heater

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