CN107277943B - Multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater - Google Patents
Multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater Download PDFInfo
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- CN107277943B CN107277943B CN201710403250.3A CN201710403250A CN107277943B CN 107277943 B CN107277943 B CN 107277943B CN 201710403250 A CN201710403250 A CN 201710403250A CN 107277943 B CN107277943 B CN 107277943B
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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
- H05B3/02—Details
- H05B3/03—Electrodes
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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
- H05B3/02—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
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
Abstract
The invention discloses a multifunctional gas-liquid tube type positive temperature coefficient thermistor heater for a vehicle, which comprises a heater shell, wherein a heater heat source is arranged in the heater shell, the heater heat source is in contact with an electrode plate, the electrode plate is in contact with a radiator, one end of the heater shell is fixedly connected with a connector, the connector is connected with one end of an electric quick connector, the electric quick connector is connected with one end of a liquid/gas tube, a polymer PTC film is coated outside the liquid/gas tube, and a double-wall heat-shrinkable tube is sleeved outside the polymer PTC film. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater is used for a vehicle heating and diagnosis system, solves the problems that the wire harness of the traditional heater is too many and disordered and the heater is not powered off after the heater is separated from an engine, adopts a safer design, is in the same loop with a diagnosis structure, and is powered off after a heater connector is separated, so that the multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater is safer to use.
Description
Technical Field
The invention relates to the field of automobile crankcase ventilation heaters, in particular to a multifunctional automobile gas-liquid tube type positive temperature coefficient thermistor heater.
Background
A crankcase ventilation heater belongs to an automobile accessory, and is installed on an engine of a motor vehicle to connect a crankcase and an air inlet pipe.
Gasoline or diesel engines, due to combustion, produce exhaust gases between the piston and the cylinder of the crankcase, which contain unburned substances and nitrogen oxides as well as water vapor. Such exhaust gases and engine oil and other substances are present in the form of oil mist. Previously, the mixture of crankcase exhaust gas and engine oil was vented directly to the environment through a pressure relief valve. If the crankcase is not vented, the pressure inside it may increase during engine operation, eventually leading to engine breakdown. Since the exhaust gases from the crankcase contain harmful components, in particular nitrogen oxides, new exhaust emission regulations (Euro 3 to 6 standard issued 9 months 2014) have been adopted in europe for crankcase closed ventilation systems. When the temperature is lower than 4 ℃, moisture (due to condensation of water vapor) contained in the crankcase exhaust gas can be frozen, so that a certain degree of blockage occurs in a crankcase ventilation system, and the crankcase ventilation heater is produced at the same time, so that a strength is exerted on environmental protection, and particularly for a diesel engine, the exhaust gas circulation control of the crankcase ventilation heater is an important means for reducing the emission of nitrogen oxides. The crankcase heater will typically be installed in a designated location. In this case, the exhaust gas from the crankcase is introduced into the intake of fresh air in the internal combustion engine, and if the crankcase heater joint is accidentally detached, this results in the exhaust gas from the crankcase being directly discharged into the atmosphere, polluting the environment, and the intake duct therefore leaks, and excess air is mixed into the engine, diluting the mixture, and the engine power is consequently reduced, which is regulated in the united states and canada: it is necessary to detect whether the crankcase heater is connected by a diagnostic system. The functional principle of the crankcase heater is to convert electric energy into heat energy, the process of the crankcase heater is completed by a core part of the heater, a PTC thermistor is also needed, and the heat is transferred to a heat conducting component through the thermistor and then is conveyed to an air intake position to be heated.
When the traditional mechanical diagnosis system is used, only after the crankcase heater is connected, the locking structure of the connector can be opened and installed, and the diagnosis circuit and the heater circuit are mutually independent, so that the design has the defects that: since the diagnostic circuit and the heater circuit are independent of each other, this means that when the crankcase ventilation heater is disconnected from the engine, although a diagnostic signal can be sent, the heater will continue to generate heat without being powered off, potentially causing unpredictable potential risks. In addition, the scheme needs a plurality of wire harnesses, so that the wire harnesses of the engine are crowded and the attractiveness of the engine is reduced, and the heating function of the PTC film (coating the surface of the pipeline) cannot be added, so that the function is single.
There is also a heater designed by using PTC heat source to generate heat, when in use, the heat is transferred to the plastic, and the plastic is heated and then transferred to the aluminum radiating block, and the design still has the defects: because the plastic material has poor heat-conducting property, the heat resistance at the plastic part in the heat transfer process is very large, so that the heat is accumulated at a heat source, and the metal electrode plate is oxidized and corroded due to overheating after being used for a long time, and finally the product fails.
Disclosure of Invention
The invention aims to provide a gas-liquid tube type positive temperature coefficient thermistor heater for a multifunctional vehicle, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a gas-liquid tube type positive temperature coefficient thermistor heater for a multifunctional vehicle comprises a heater shell, wherein a heater heat source and a group of electrode plates are arranged in the heater shell, the number of the electrode plates is two, the electrode plates are respectively contacted with two sides of the heater heat source, the electrode plate positioned at the bottom is contacted with a radiator arranged in the heater shell, one end of the electrode plate is led out of a heater heat source terminal, a group of co-injection conductive metal strips are arranged in the heater shell, one end of each co-injection conductive metal strip is electrically connected with a terminal which is connected to the outside of the heater shell, the other end of each co-injection conductive metal strip is electrically connected with a spring terminal, one end of the heater shell is fixedly connected with a connector, the spring terminal is arranged on the end face of the connector, and the connector is connected with one end of an, the other end of the electric quick connector is provided with a co-injection terminal, the co-injection terminal is electrically connected with a double-end female terminal arranged inside the electric quick connector, one end of the electric quick connector with the co-injection terminal is connected with one end of a liquid/gas pipe, a liquid/gas pipe heat source is coated outside the liquid/gas pipe, a conductor strip is arranged in the liquid/gas pipe heat source, the liquid/gas pipe heat source and the conductor strip are both in contact fit with the co-injection terminal, a double-wall heat-shrinkable pipe is sleeved outside the liquid/gas pipe, an O-shaped ring pressing sleeve is further sleeved at the position where the double-wall heat-shrinkable pipe is matched with the electric quick connector, and the other end of the liquid/gas pipe is connected with another electric quick connector in the same.
Preferably, an O-shaped ring A and an O-shaped ring B are arranged between the electric quick connector and the connector, and an O-shaped ring C is arranged between the double-wall heat-shrinkable tube and the O-shaped ring pressing sleeve.
Preferably, the outer layer of the double-wall heat-shrinkable tube is a protective layer, and the inner layer of the double-wall heat-shrinkable tube is a hot melting layer.
Preferably, a reinforcing clamping ring is sleeved outside the matching part of the liquid/air pipe and the electric quick connector.
Preferably, the heater heat source is made of a ceramic PTC material, the liquid/gas tube heat source is made of a polymer PTC film, a flexible film-like liquid/gas tube heat source is wound around the surface of the liquid/gas tube, the liquid/gas tube heat source is coated with an adhesive or non-adhesive backing on the side that engages with the liquid/gas tube, and the liquid/gas tube heat source is wound around the outer wall of the liquid/gas tube through the adhesive or non-adhesive backing.
Preferably, a spring plate is arranged between the double-wall heat shrinkable tube and the electric quick connector, the spring plate is in contact fit with the liquid/gas tube heat source and the conductor strip, the spring plate is matched with the co-injection terminal, and the electric connection of the liquid/gas tube heat source and the co-injection terminal can also adopt the modes of welding, spot welding and conductive adhesive connection.
Preferably, the radiator is a ring made of heat-dissipating aluminum, the heater heat source is adhered to one surface of the electrode plate, the other surface of the electrode plate is directly adhered to the radiator, and the electrode plate is assisted and fixed by other components while an adhesive is adopted, so that good contact between the electrode plate and the radiator is ensured.
Preferably, the double-end female terminal is a double-end spring leaf conductor, and the spring terminal and the double-end female terminal are electrically connected in a mode that the spring leaf is compressed and abutted.
Compared with the prior art, the invention has the beneficial effects that: when the gas-liquid tube type positive temperature coefficient thermistor heater for the multifunctional vehicle is used, the heat source of the heater conducts heat from the heat source of the heater made of ceramic PTCR by using the radiator, the heat source of the heater can be electrified by the electrode plate connected with the upper terminal, the heat source of the heater is adhered to the electrode plate, the electrode plate is directly adhered to the radiator, and other parts are adopted for auxiliary fixation while using an adhesive to ensure that the electrode plate and the radiating fin can be well in thermal contact, so that the design avoids the problem that plastic influences heat conduction between the heat source and the radiator in the traditional means, the heat source can be directly contacted with radiating aluminum, the heat conduction effect is excellent, after a fluid simulation test is carried out after the structure of the invention is adopted, the temperature distribution is uniform and no hot spot is generated when the multifunctional vehicle is used compared with the traditional device, the spring terminal and the co-injection terminal are connected, the two ends of the double-end female terminal are respectively inserted with the spring terminal and the co-injection terminal, so that the contact is reliable, and the reliability of electric connection is ensured by the elasticity of the spring piece in the double-end female terminal; the liquid/gas pipe is mechanically inserted into the connector, and is tightly kept around the electric quick connector shell by the compression stress generated by the physical tension of the liquid/gas pipe when the liquid/gas pipe is inserted, and the use of the reinforced clamp ring further ensures the reliability of the matching of the liquid/gas pipe and the connector; the O-shaped ring C, O-shaped ring pressing sleeve is used for realizing waterproof sealing between the electric quick connector and the liquid/gas pipe, the O-shaped ring pressing sleeve is fixed by a plastic buckle, the plastic buckle adopts the prior art, the O-shaped ring pressing sleeve compresses the O-shaped ring C, waterproof sealing between the liquid/gas pipe and the heat shrinkage pipe is realized by pressing the O-shaped ring C to a required compression ratio, the co-injection terminal is in contact fit with the liquid/gas pipe heat source and the conductor strip through a spring piece, and the spring piece presses the liquid/gas pipe heat source and the conductor strip to finish the electric connection of the liquid/gas pipe heat source and the conductor strip and the co-injection terminal; when the multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater is applied to a vehicle engine, the electric quick connector is likely to loosen and fall off due to vibration or other factors, so that a double-head female terminal connected to the electric quick connector is likely to be disconnected from a spring terminal connected to a connector; when the gas-liquid tube type positive temperature coefficient thermistor heater for the multifunctional vehicle is used, in a non-heating configuration, under a normal condition, a traveling crane computer can read the normal resistance value (the limited resistance value of the conductor bar) of the heater so as to judge that the heater normally works, after the electric quick connector is separated from the connector, the electric connection is also disconnected, the traveling crane computer reads that the resistance value of the heater is infinite, so that the heater is judged to abnormally work, and an alarm is given; in the heating configuration, under normal conditions, the traveling crane computer can read the normal resistance value of the heater (the limited resistance value of the liquid/gas pipe heat source made of the polymer PTC film) so as to judge that the heater works normally, and the liquid/gas pipe heat source made of the polymer PTC film is a thermistor, the higher the temperature is, the higher the resistance value is, the lower the temperature is, the lower the resistance value is, so that the traveling crane computer can calculate the working temperature of the thermistor by reading the resistance value according to the resistance characteristic of the thermistor, after the electric quick connector is separated from the connector, the electric connection is also disconnected, the traveling crane computer reads the resistance value of the heater to be infinite, so as to judge that the heater works abnormally and send an alarm; the device is used for a vehicle heating and diagnosis system, solves the problems that the wire harness of the traditional heater is too much and disordered and the power supply of the heater is not disconnected after the heater is separated from an engine, adopts a safer design, the heater and the diagnosis structure form the same loop, and the power supply is disconnected after the heater connector is separated, so that the heat accumulation problem of the heater is solved more safely, the service life of a product is prolonged, the temperature distribution in a pipeline is more uniform, and the pipeline is prevented from being blocked due to large-area freezing in the pipeline; with higher thermal conductivity, product power ratings can be adjusted down appropriately to save energy, reduce emissions, self-regulating ceramic and polymer PTC films, electrical interconnection terminals and connectors when used to fulfill the need for electrical heating, joint disconnection diagnostics, and liquid/gas conduit base joints in automotive fluid or blow-by conduit structures.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of the heater housing, heater heat source, terminals, and connector of the present invention.
Fig. 3 is a schematic structural view of the arrangement of the co-injected conductive metal strips in the heater housing of the present invention.
Fig. 4 is a schematic view of a port structure of the connector of the present invention.
Fig. 5 is an exploded view of the mating of the electrical quick connector, dual-headed female terminal of the present invention.
FIG. 6 is a schematic view of the electrical quick connector of the present invention after mating with a dual-headed female terminal.
Fig. 7 is a schematic cross-sectional view of the present power generation gas quick coupling.
Fig. 8 is a schematic structural view of the co-injection terminal of the present invention mated with a dual-headed female terminal.
Fig. 9 is a schematic view of the electrical quick connector and fluid/air tube combination of the present invention.
FIG. 10 is a schematic view of the structure of the electrical quick connector, liquid/gas tube heat source, co-injection terminal of the present invention.
FIG. 11 is a schematic view of the structure of the electrical quick connector and the double-wall heat shrinkable tube of the present invention.
FIG. 12 is a schematic view of the structure of the electrical quick connector, the double-wall heat shrinkable tube, and the O-ring press fit of the present invention.
Fig. 13 is a schematic view of the mating arrangement of the double-ended female terminal of the present invention and the conductor bars.
Fig. 14 is a schematic view of the dual-ended female terminal, conductor strip, liquid/gas tube heat source cooperation of the present invention.
FIG. 15 is a schematic view of the electrical quick connector of the present invention, illustrating the structure of the O-ring A, O-ring B, O-ring C.
FIG. 16 is a schematic view of the structure of the electrical quick connector, spring plate, co-injection terminal, reinforcing clip ring, and double wall heat shrink tube of the present invention.
Fig. 17 is a circuit diagram of a conductor strip portion of the present invention.
Fig. 18 is a circuit diagram of a heat source portion of a liquid/gas tube of the present invention.
FIG. 19 is a schematic view of the spring plate cooperating with the liquid/gas tube heat source and the conductor bar according to the present invention.
Fig. 20 is a characteristic diagram of an organic polymer PTC thin film used for a heater heat source according to the present invention.
FIG. 21 is a schematic view of the structure of the electrode plate, heater heat source and heat sink of the present invention.
In the figure: 1. heater heat source, 2, liquid/gas pipe heat source, 3, conductor bar, 4, electrode slice, 5, terminal, 6, spring terminal, 7, radiator, 8, co-injection conductive metal bar, 9, heater shell, 10, heater heat source terminal, 11, O-ring A, 12, O-ring B, 13, O-ring C, 14, O-ring press sleeve, 15, spring piece, 16, reinforcing clamp ring, 17, protective layer, 18, hot melt layer, 19, double-wall heat shrink pipe, 20, co-injection terminal, 21, double-head female terminal, 22, connector, 23, liquid/gas pipe, 24, electric quick connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 21, the present invention provides a technical solution: a gas-liquid tube type positive temperature coefficient thermistor heater for a multifunctional vehicle comprises a heater shell 9, a heater heat source 1 and a group of electrode plates 4 are arranged in the heater shell 9, the number of the electrode plates 4 is two, the electrode plates 4 are respectively contacted with two sides of the heater heat source 1, the electrode plate 4 positioned at the bottom is contacted with a radiator 7 arranged in the heater shell 9, one end of the electrode plate 4 is led out of a heater heat source terminal 10, a group of co-injection conductive metal strips 8 are arranged in the heater shell 9, one end of each co-injection conductive metal strip 8 is electrically connected with a terminal 5 which is connected to the outside of the heater shell 9, the other end of each co-injection conductive metal strip 8 is electrically connected with a spring terminal 6, one end of the heater shell 9 is fixedly connected with a connector 22, and the spring terminal 6 is arranged on the end face of the connector 22, the connector 22 is connected with one end of an electric quick connector 24, the other end of the electric quick connector 24 is provided with a co-injection terminal 20, the co-injection terminal 20 is electrically connected with a double-end female terminal 21 arranged inside the electric quick connector 24, one end of the electric quick connector 24 with the co-injection terminal 20 is connected with one end of a liquid/gas pipe 23, the liquid/gas pipe 23 is externally coated with a liquid/gas pipe heat source 2, a conductor strip 3 is arranged inside the liquid/gas pipe heat source 2, the liquid/gas pipe heat source 2 and the conductor strip 3 are both in contact fit with the co-injection terminal 20, a double-wall heat-shrinkable pipe 19 is sleeved outside the liquid/gas pipe 23, an O-shaped ring pressing sleeve 14 is sleeved at the position where the double-wall heat shrinkable pipe 19 is matched with the electric quick connector 24, and the other end of the liquid/gas pipe 23 is connected with the other electric quick connector 24, an O-ring A11 and an O-ring B12 are arranged between the electric quick connector 24 and the connector 22, an O-ring C13 is arranged between the double-wall heat shrinkable tube 19 and the O-ring pressing sleeve 14, the outer layer of the double-wall heat shrinkable tube 19 is a protective layer 17, the inner layer of the double-wall heat shrinkable tube 19 is a hot melting layer 18, a reinforcing clamping ring 16 is sleeved outside the matching part of the liquid/gas tube 23 and the electric quick connector 24, the heater heat source 1 is made of ceramic PTC materials, the liquid/gas tube heat source 2 is made of polymer PTC films, the flexible film liquid/gas tube heat source 2 is wound on the surface of the liquid/gas tube 23, the surface of the liquid/gas tube heat source 2 matched with the liquid/gas tube 23 is coated with an adhesive or a non-adhesive backing, the liquid/gas tube heat source 2 is wound on the outer wall of the liquid/gas tube 23 through the adhesive or the non-, a spring plate 15 is arranged between the double-wall heat shrinkable tube 19 and the electric quick connector 24, the spring plate 15 is contacted and matched with the liquid/gas pipe heat source 2 and the conductor strip 3, the spring piece 15 is matched with the co-injection terminal 20, the electric connection between the liquid/gas pipe heat source 2 and the co-injection terminal 20 can also adopt a welding mode, a spot welding mode and a conductive adhesive connecting mode, the radiator 7 is a ring-shaped object made of radiating aluminum, the heater heat source 1 is adhered to one surface of the electrode plate 4, the other surface of the electrode plate 4 is directly adhered to the radiator 7, and other components are adopted for auxiliary fixation while the adhesive is adopted, so that the electrode plate 4 is ensured to be in good contact with the radiator 7, the female terminal 21 of double-end is the double-end spring conductor, spring terminal 6 with the electric connection is realized through the mode that the spring compression offseted to the female terminal 21 of double-end.
The working principle is as follows: when the gas-liquid tube type positive temperature coefficient thermistor heater for the multifunctional vehicle is installed, the heater heat source 1 uses the radiator 7 to conduct heat from the heater heat source 1 made of ceramic PTCR, the heater heat source 1 can be electrified through the electrode plate 4 connected with the heater heat source terminal 10, the heater heat source 1 is adhered to the electrode plate 4, the electrode plate 4 is directly adhered to the radiator 7, and other parts are adopted for auxiliary fixation while using an adhesive to ensure that the electrode plate 4 and the radiating fin can be in good thermal contact The spring terminal 6 and the co-injection terminal 20 are connected through the double-head female terminal 21, two ends of the double-head female terminal 21 are respectively connected with the spring terminal 6 and the co-injection terminal 20 in an inserting mode, contact is reliable, and reliability of electric connection is guaranteed by means of elasticity of a spring piece in the double-head female terminal 21; the liquid/air tube 23 is mechanically inserted into the connector 22 and is tightly held around the housing of the electric quick connector 24 by the compressive stress generated by the physical tension of the liquid/air tube 23 itself during insertion, the use of the reinforcing clip 16 further ensures the reliability of the fit of the liquid/air tube 23 and the connector 22; the O-shaped ring C13 and the O-shaped ring pressing sleeve 14 are used for realizing waterproof sealing between the electric quick connector 24 and the liquid/air pipe 23, the O-shaped ring pressing sleeve 14 is fixed by a plastic buckle, the plastic buckle adopts the prior art, the O-shaped ring pressing sleeve 14 compresses the O-shaped ring C13, waterproof sealing between the liquid/air pipe 23 and the double-wall heat-shrinkable pipe 19 is realized by pressing the O-shaped ring C13 to a required compression ratio, the co-injection terminal 20 is in contact fit with the liquid/air pipe heat source 1 and the conductor bar 3 through a spring piece 15, and the spring piece 15 compresses the liquid/air pipe heat source 1 and the conductor bar 3 to complete the electric connection of the liquid/air pipe heat source 1 and the conductor bar 3 with the co-injection terminal 20; when the multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater is applied to a vehicle engine, the electric quick connector 24 is likely to loosen and fall off due to vibration or other factors, so that the double-head female terminal 21 connected to the electric quick connector 24 is likely to be disconnected from the spring terminal 6 connected to the connector 22; when the gas-liquid tube type positive temperature coefficient thermistor heater for the multifunctional vehicle is used, in a non-heating configuration, under a normal condition, the traveling crane computer can read the normal resistance value (the limited resistance value of the conductor strip 3) of the heater so as to judge that the heater normally works, after the electric quick connector 24 is separated from the connector 22, the electric connection is also disconnected, the traveling crane computer reads that the resistance value of the heater is infinite so as to judge that the heater abnormally works, and an alarm is given; in the heating configuration, under normal conditions, the traveling crane computer can read the normal resistance value of the heater (the limited resistance value of the liquid/gas pipe heat source 1 made of the polymer PTC film) so as to judge that the heater works normally, while the liquid/gas pipe heat source 1 made of the polymer PTC film is a thermistor, the higher the temperature is, the higher the resistance value is, the lower the temperature is, the lower the resistance value is, therefore, according to the resistance characteristic of the thermistor, the traveling crane computer can calculate the working temperature of the thermistor by reading the resistance value, after the electric quick connector 24 is separated from the connector 22, the electric connection is also broken, the traveling crane computer reads the resistance value of the heater to be infinite, so as to judge that the heater works abnormally, and send out an alarm.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a multi-functional automobile-used gas-liquid tubular positive temperature coefficient thermistor heater, includes heater casing (9), its characterized in that: the heater is characterized in that a heater heat source (1) and a group of electrode plates (4) are arranged in the heater shell (9), the number of the electrode plates (4) is two, the electrode plates (4) are respectively in contact with two sides of the heater heat source (1), the electrode plates (4) positioned at the bottom are in contact with a radiator (7) arranged in the heater shell (9), a heater heat source terminal (10) is led out of one end of each electrode plate (4), a group of co-injection conductive metal strips (8) are arranged in the heater shell (9), one ends of the co-injection conductive metal strips (8) are electrically connected with terminals (5) connected out of the heater shell (9), the other ends of the co-injection conductive metal strips (8) are electrically connected with spring terminals (6), one end of the heater shell (9) is fixedly connected with a connector (22), and the spring terminals (6) are arranged on the end face of the connector (22), the connector (22) is connected with one end of an electric quick connector (24), the other end of the electric quick connector (24) is provided with a co-injection terminal (20), the co-injection terminal (20) is electrically connected with a double-end female terminal (21) arranged inside the electric quick connector (24), one end of the electric quick connector (24) with the co-injection terminal (20) is connected with one end of a liquid/air pipe (23), the liquid/air pipe (23) is externally wrapped with a liquid/gas pipe heat source (2), a conductor bar (3) is arranged in the liquid/gas pipe heat source (2), the liquid/gas pipe heat source (2) and the conductor bar (3) are both in contact fit with the co-injection terminal (20), a heat shrinkage pipe (19) is sleeved outside the liquid/air pipe (23), and an O-shaped annular pressing sleeve (14) is further sleeved at the fit position of the double-wall heat shrinkage pipe (19) and the electric quick connector (24), the other end of the liquid/air pipe (23) is connected with another electric quick connector (24) in the same way.
2. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: an O-shaped ring A (11) and an O-shaped ring B (12) are arranged between the electric quick connector (24) and the connector (22), and an O-shaped ring C (13) is arranged between the double-wall heat-shrinkable tube (19) and the O-shaped ring pressing sleeve (14).
3. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: the outer layer of the double-wall heat shrinkable tube (19) is a protective layer (17), and the inner layer of the double-wall heat shrinkable tube (19) is a hot melting layer (18).
4. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: the outer part of the matching part of the liquid/air pipe (23) and the electric quick joint (24) is sleeved with a reinforcing clamping ring (16).
5. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: the heater heat source (1) is made of ceramic PTC materials, the liquid/gas pipe heat source (2) is made of polymer PTC films, the flexible film-shaped liquid/gas pipe heat source (2) is wound on the surface of the liquid/gas pipe (23), the liquid/gas pipe heat source (2) is coated with an adhesive or non-adhesive backing on the surface matched with the liquid/gas pipe (23), and the liquid/gas pipe heat source (2) is wound on the outer wall of the liquid/gas pipe (23) through the adhesive or non-adhesive backing.
6. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: a spring piece (15) is arranged between the double-wall heat-shrinkable tube (19) and the electric quick connector (24), the spring piece (15) is in contact fit with the liquid/gas tube heat source (2) and the conductor strip (3), the spring piece (15) is matched with the co-injection terminal (20), and the liquid/gas tube heat source (2) is electrically connected with the co-injection terminal (20) by welding or conductive adhesive.
7. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: the radiator (7) is a ring-shaped object made of radiating aluminum, the heater heat source (1) is adhered to one surface of the electrode plate (4), and the other surface of the electrode plate (4) is directly adhered to the radiator (7).
8. The multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater according to claim 1, characterized in that: the double-end female terminal (21) is a double-end spring leaf conductor, and the spring terminal (6) is electrically connected with the double-end female terminal (21) in a mode that the spring leaf is compressed and abutted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403250.3A CN107277943B (en) | 2017-06-01 | 2017-06-01 | Multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403250.3A CN107277943B (en) | 2017-06-01 | 2017-06-01 | Multifunctional vehicular gas-liquid tube type positive temperature coefficient thermistor heater |
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| CN107277943A CN107277943A (en) | 2017-10-20 |
| CN107277943B true CN107277943B (en) | 2020-06-30 |
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| CN108825328A (en) * | 2018-07-27 | 2018-11-16 | 盛嘉伦热力科技(河源)有限公司 | Automobile-used triton pipe heater |
| CN113812973A (en) * | 2021-09-06 | 2021-12-21 | 江苏霆升科技有限公司 | Miniature ultrasonic transducer based on thermosensitive backing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2230758T3 (en) * | 1999-03-18 | 2005-05-01 | David + Baader Dbk Spezialfabrik Elektrischer Apparate Und Heizwiderstande Gmbh | WARMING DEVICE FOR GASOLEO AND SYSTEM OF FILTERING OF GASOLEO CALENTADO. |
| IT1396306B1 (en) * | 2009-11-06 | 2012-11-16 | Eltek Spa | ELECTRIC HEATER, HEATING DEVICE AND HEATING SYSTEM. |
| DE102010033757A1 (en) * | 2010-08-09 | 2012-02-09 | Dbk David + Baader Gmbh | fluid guide |
| DE102012014746A1 (en) * | 2012-07-26 | 2014-02-13 | Mann + Hummel Gmbh | Heating device for a fluid line |
| CN202851203U (en) * | 2012-10-26 | 2013-04-03 | 中国电子科技集团公司第十三研究所 | Air heater for crankcase forced ventilation pipe |
| DE102014012113A1 (en) * | 2013-09-03 | 2015-03-05 | Mann + Hummel Gmbh | Heating arrangement and heating device for heating a fluid |
| CN104093223B (en) * | 2014-06-25 | 2016-03-16 | 奇瑞汽车股份有限公司 | A kind of electric heating anti-icing equipment and crankcase ventilation system |
| JP6285829B2 (en) * | 2014-09-10 | 2018-02-28 | 株式会社ニフコ | Piping equipment for fluid |
| CN204267186U (en) * | 2014-12-03 | 2015-04-15 | 河北中瓷电子科技有限公司 | A kind of crankcase air heater |
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2017
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| CN107277943A (en) | 2017-10-20 |
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