WO2011086909A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
WO2011086909A1
WO2011086909A1 PCT/JP2011/000109 JP2011000109W WO2011086909A1 WO 2011086909 A1 WO2011086909 A1 WO 2011086909A1 JP 2011000109 W JP2011000109 W JP 2011000109W WO 2011086909 A1 WO2011086909 A1 WO 2011086909A1
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WO
WIPO (PCT)
Prior art keywords
heating
housing
heat
heating device
heat medium
Prior art date
Application number
PCT/JP2011/000109
Other languages
English (en)
Japanese (ja)
Inventor
和昌 高田
政人 坪井
公 塚本
Original Assignee
サンデン株式会社
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Filing date
Publication date
Application filed by サンデン株式会社 filed Critical サンデン株式会社
Publication of WO2011086909A1 publication Critical patent/WO2011086909A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0072—Special adaptations
    • F24H1/009—Special adaptations for vehicle systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2296—Constructional features integration into fluid/air heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater

Definitions

  • the present invention relates to a heating device in which a heat medium of a heating element circulates.
  • a flat pipe is formed by embedding a flow pipe through which hot water as a heat medium flows and a heating wire heater (heating element) arranged in parallel with the flow pipe in a heat transfer metal.
  • a heat transfer body is formed, a plurality of the heat transfer bodies are integrated, and circulation pipes are connected in series to constitute a heat source device (see, for example, Patent Document 1).
  • a heating device using the heating wire heater as described above is mounted on the vehicle.
  • the refrigeration circuit of the vehicle air conditioner It is expected to be used for heating the refrigerant circulating through
  • a heating wire heater inserts a coiled heating wire such as a nichrome wire into a bottomed cylindrical metal pipe, and pressurizes and fills the metal pipe with a heat-resistant insulating material having high electrical insulation and thermal conductivity. Then, it is formed by enclosing a heating wire.
  • a terminal portion is provided at the opening of the metal pipe, and the terminal portion is connected to the heating wire and has a terminal protruding from the heating wire heater.
  • Each terminal of each heating wire heater is electrically connected to an external power supply device, and constitutes an energization circuit for energizing the heating wire.
  • the heating wire heater is bent in a U-shape with a distribution pipe to form one heat transfer body, and a plurality of the heat transfer members are integrated. Each terminal of each heating wire heater is separated. Since it is not easy to connect each terminal to the energization circuit, there is a concern that the assembling property of the heating device may be deteriorated and the manufacturing cost may be increased.
  • the configuration of the heating device is spurred and the direct heating from the heat generating body to the case The heat transfer cannot be completely interrupted, and there is a risk of deteriorating the heat transfer efficiency of the heating device.
  • the heating device is further complicated, and the presence of a plurality of connection points in the heating device increases the risk of heat medium leakage, and the heating device There is also a problem that reliability may be impaired.
  • the present invention has been made based on the above-described circumstances, and an object of the present invention is to provide a heating device that can reduce the manufacturing cost with a simple configuration and can improve the heat transfer efficiency and the reliability.
  • a heating device of the present invention includes a first housing that houses a heating element, has an open end on the side where the heating element is housed, a first housing, And a second casing that forms a flow path through which the heat medium of the heating element flows between the casing and the heating element.
  • a plurality of heating elements are accommodated in one casing, and each heating element is accommodated in the first casing with all ends positioned on the opening end side (claim 1).
  • each end is fixed to the open end (claim 2).
  • at least one of the outer surface of the first housing and the inner surface of the second housing is provided with a guide for guiding and flowing the heat medium in the flow path (Claim 3), and the guide is the second facing the guide. It is not in contact with the inner surface of the housing or the outer surface of the first housing.
  • a plurality of guides are provided by alternately shifting the height in a direction perpendicular to the longitudinal direction of the heating element (Claim 5), or the guides are continuously spiraled along the longitudinal direction of the heating element. (Claim 6).
  • a plurality of protrusions are provided on at least one of the outer surface of the first housing and the inner surface of the second housing, and each protrusion has an inner surface of the second housing facing the first housing or the first housing.
  • the second casing has a heat medium inlet portion and an outlet portion in the vicinity of each apex that forms a diagonal in the longitudinal direction of the side surface thereof (non-contact with the outer surface of the casing) (Claim 7).
  • Claim 8) Furthermore, the end portion is a terminal portion that is energized to generate heat from the heating element, and the second housing has a heat medium inlet portion on the terminal portion side.
  • the control means which controls electricity supply with respect to each or several groups of terminal parts among several heat generating bodies is provided (Claim 10).
  • the heating element is a heating wire heater (Claim 11)
  • the heat medium is cooling water that circulates in a cooling water circuit to cool the heat source (Claim 12), and the heat source is This is a vehicle engine, and this cooling water circuit is provided in an air conditioner of the vehicle.
  • the heat medium is a refrigerant circulating in the refrigeration circuit (Claim 14), and this refrigeration circuit is provided in an air conditioner of the vehicle (Claim 15).
  • the heat medium is an antifreeze that circulates in the heating circuit.
  • the first casing is accommodated, the first casing having the opening end on the side where the heating element is accommodated and the heating element is accommodated. And a second casing that forms a flow path through which the heat medium of the heating element flows.
  • the heating element has an end portion for external connection to heat the heating element at one end.
  • a plurality of heating elements are accommodated in the casing, and each heating element is accommodated in the first casing with each end located on the opening end side.
  • a flow path of the heat medium is formed between the two units, and direct heat transfer from the heating element to the second housing can be almost completely cut off, and the heat transfer efficiency of the heating device can be improved.
  • the flow path of the heat medium is formed between the two units, the number of connection portions of the flow path can be greatly reduced as compared with the case where the flow path is formed by a pipe or the like. The risk of leakage of the heat medium in can be reduced, and the reliability of the heating device can be improved.
  • each end portion is fixed to the opening end portion, so that each end portion can be reliably integrated and positioned on the opening end portion of the first housing.
  • the external connection can be made even more easily.
  • At least one of the outer surface of the first housing and the inner surface of the second housing is provided with a guide for guiding and flowing the heat medium in the flow channel.
  • the heat medium can flow smoothly and the heat transfer efficiency of the heating device can be increased.
  • the guide is not in contact with the inner surface of the opposing second housing or the outer surface of the first housing, whereby direct heat from the heating element to the second housing is achieved. Transmission can be completely interrupted, and the heat transfer efficiency of the heating device can be increased.
  • a plurality of guides are provided with the height being alternately shifted in the vertical direction with respect to the longitudinal direction of the heating element, so that the heat medium is directed along the guide in the longitudinal direction of the heating element. Since the flow path can be circulated while meandering and the substantial length of the flow path can be increased, it is possible to effectively increase the heat transfer time of the heat medium with respect to the first casing and, consequently, the heating element. Further, when the guide is formed in the first housing, the heat transfer area of the heat medium with respect to the first housing can be increased, so that the heat transfer efficiency of the heating device can be further increased.
  • the guide is continuously provided in a spiral along the longitudinal direction of the heating element, so that the heat medium swirls spirally along the guide in the longitudinal direction of the heating element.
  • the substantial length of the flow path can be increased while flowing through the flow path, it is possible to effectively increase the heat transfer time of the heat medium with respect to the first casing and, consequently, the heating element.
  • the guide since the guide is formed in the first housing, the heat transfer area of the heat medium with respect to the first housing can be increased, so that the heat transfer efficiency of the heating device can be further increased.
  • a plurality of protrusions are provided on at least one of the outer surface of the first housing and the inner surface of the second housing, and each protrusion is configured to face the second housing. Since the heat medium can be made to flow in a turbulent manner in the flow path and the substantial length of the flow path can be increased by not contacting the inner surface of the first housing or the outer surface of the first housing. It is possible to effectively increase the heat transfer time of the heat medium with respect to the housing and thus the heating element. Further, when the protrusion is formed on the first housing, the heat transfer area of the heat medium with respect to the first housing can also be increased, so that the heat transfer efficiency of the heating device can be further increased.
  • the second casing has the inlet portion and the outlet portion of the heat medium in the vicinity of each apex that forms a diagonal in the longitudinal direction of the side surface thereof, so that the heat medium is the first heat medium. Since it flows smoothly over every corner in 2 housing
  • the end portion is a terminal portion that is energized to cause the heat generating element to generate heat
  • the second casing has the inlet portion of the heat medium on the terminal portion side. The terminal portion can be cooled by a heat medium having a relatively low temperature before being heated by heat transfer from the heat transfer medium.
  • the heat resistance temperature of the terminal portion is generally lower than that of the heating element body, it is possible to prevent the terminal portion from reaching a temperature that the heating element emits, so that the durability of the heating element and the reliability of the heating device can be reduced. Can increase the sex.
  • the energization circuit of the heating device is made into a plurality of circuits and individually energized. Therefore, even if one energization line is disconnected, the heating device can be operated by another energization circuit.
  • the inrush current to the heating device can be reduced by energizing a plurality of terminals in stages when the heating device is started, and the overload trip of the heating device can be prevented, the reliability of the heating device is improved. Can do.
  • the heating element is a heating wire heater, and the manufacturing cost of the heating device can be further reduced by using an inexpensive general-purpose heating wire heater. Since the heating wire heater is generally widely spread and has high reliability, the reliability of the heating device can be further improved.
  • the heat medium is cooling water that circulates in a cooling water circuit to cool the heat source, and according to the invention described in claim 13, the heat source is a vehicle.
  • This cooling water circuit is provided in the vehicle air conditioner.
  • the heat medium is a refrigerant circulating in the refrigeration circuit.
  • the refrigeration circuit is provided in the air conditioner of the vehicle.
  • the heat medium is an antifreeze liquid circulating in the heating circuit.
  • the heating device when used as an auxiliary heat source or an alternative heat source for the engine, the cooling water circuit, the refrigeration circuit, and the air conditioner in which these circuits are provided, and the assembly of the vehicle in which the air conditioner is mounted is further improved. It is preferable because improvement and reduction in manufacturing cost can be achieved.
  • the heating device 1 includes a heat transfer block (first housing) 4 in which four heating wire heaters (heating elements) 2 are accommodated, and a heat transfer block 4. And an outer case (second housing) 8 that forms a flow path 6 through which the heat medium of the heating wire heater 2 flows.
  • the heating device 1 is mounted on a vehicle such as a hybrid vehicle or an electric vehicle.
  • the heating device 1 is used as an auxiliary heat source for supplying heat so as to compensate for waste heat that the engine (heat source) is insufficient.
  • LLC cooling water, antifreeze liquid
  • This cooling water circuit is provided in the vehicle air conditioner, and the heat of the LLC heated by the engine and the heating device 1 is used to heat the refrigerant circulating in the refrigeration circuit provided in the air conditioner. It becomes possible.
  • the refrigerant circulating in the refrigeration circuit flows through the flow path 6 as a heat medium and is heated by the heating wire heater 2.
  • This refrigeration circuit is provided in the vehicle air conditioner in the same manner as described above, and the interior and exterior of the vehicle compartment can be cooled and heated by the heat of the refrigerant heated by the heating device 1. Further, water as a heat medium is circulated through the flow path 6, the water is heated by the heating wire heater 2, and the refrigerant circulating through the heating circuit of the vehicle air conditioner is heated using this hot water as an alternative heat source for the engine. It can also be used as a heat source for this purpose.
  • the heating circuit 1 is provided with a heater core (not shown) in the heating circuit in which the antifreeze liquid circulates, and the heating device 1 is used as one of the heat sources of the antifreeze liquid and is heated by the heater core. It is also conceivable to blow air.
  • a coiled heating wire 12 such as a nichrome wire is inserted into a bottomed cylindrical metal pipe 10, and high electrical insulation and heat conduction are inserted into the metal pipe 10. It is formed by pressurizing and filling the heat-resistant insulating material 14 having a property and enclosing the heating wire 12.
  • the heat-resistant insulating material 14 is, for example, magnesium oxide, and the main body of the heating wire heater 2 including the heat-resistant insulating material 14 and the metal pipe 10 has a heat-resistant temperature of about 1100 ° C.
  • the opening part of the metal pipe 10 is provided with a terminal part (end part) 16, and the terminal part 16 has a terminal 18 that is connected to the heating wire 12 and protrudes from the heating wire heater 2.
  • Each terminal 18 of each heating wire heater 2 is electrically connected to an external power supply device 20 and constitutes an energization circuit 22 for energizing the heating wire 12.
  • the terminal portion 16 is formed by casting and molding silicon, glass or the like in the opening of the metal pipe 10, and the terminal portion 16 has a heat resistant temperature of about 200 ° C. to 300 ° C. Instead of the terminal 18, a lead wire connected to the heating wire 12 may be drawn out from the terminal portion 16.
  • each heating wire heater 2 is provided with a thermal fuse (not shown) to protect each energizing circuit 22 from a large current exceeding the rating flowing through the heating wire 12, Prevents ignition.
  • a temperature sensor 24 such as a thermistor for detecting the temperature in the metal pipe 10 is drawn out from each terminal portion 18 of each heating wire heater 2.
  • Each temperature sensor 24 is electrically connected to an external electronic control unit (ECU) 26 that comprehensively controls the vehicle, and the power supply device 20 is also electrically connected to the ECU 26.
  • the ECU 26 is individually connected to each of the four heating wire heaters 2 or a plurality of terminal portions 16 according to the temperature in each metal pipe 10 detected by each temperature sensor 24 via the power supply device 20. Energization control for energizing is performed (control means).
  • the heating device 1 By performing this energization control, it becomes possible to energize the heating device 1 by making a plurality of energization circuits 22 individually. For example, even if one energization line 22 is disconnected, the other energization circuit 22 is energized and heated. The device 1 can be activated. Further, by energizing each terminal portion 16 stepwise when the heating device 1 is started, it is possible to reduce the inrush current to the heating device 1 and prevent the overload trip of the heating device 1.
  • the heat transfer block 4 is integrally formed as one unit by casting, for example, a metal having high heat resistance and heat conductivity.
  • the end surface 4a of the heat transfer block 4 four insertion holes 28 in which the heating wire heaters 2 are accommodated are opened at the end surface 4a so as to be gathered at substantially equal intervals, and a block opening end portion (first opening end portion) 30 is formed.
  • the side surface (outer surface) 4 b of the heat transfer block 4 has a shape that is reduced to a strength range in which the insertion hole 28 can be formed in accordance with the shape of the metal pipe 10.
  • the block opening end 30 may be formed separately from the main body of the heat transfer block 4, and these may be joined later to form a unit.
  • each heating wire heater 2 inserted in each insertion hole 28 is joined and fixed to the block opening end portion 30 with an adhesive having high heat resistance and insulation at the terminal portion 16, which is apparent from FIG. 1.
  • the end surface 16a of the terminal portion 16 and the end surface 30a of the block opening end portion 30 are flush with each other.
  • the flange part 4c of the flange shape is formed in the block opening end part 30 over the perimeter, and the bolt insertion hole 32 penetrates and is formed in the four corners of the flange part 4c.
  • convex guides 34 are formed integrally with the heat transfer block 4 so as to guide and flow the heat medium from an inlet 40 to an outlet 42 described later.
  • the guide 34 has a protruding height that does not contact the inner surface 8a of the outer case 8 with a gap of about 0.5 mm from the inner surface 8a of the outer case 8 in a state where the heat transfer block 4 is accommodated in the outer case 8.
  • two guides 34 are provided with their heights alternately shifted in the direction perpendicular to the longitudinal direction of the heating wire heater 2.
  • each insertion hole 28 has a hole diameter that is approximately the same as or slightly larger than the outer diameter of the metal pipe 10 and is formed in a circular deep hole shape so that the terminal portion 16 is positioned at the block opening end 30.
  • the outer case 8 is integrally formed as one unit by casting metal, for example, and can accommodate the heat transfer block 4, and the side surface of the heat transfer block 4. 4b and the inner surface 8a of the outer case 8 have a volume capable of forming a clearance constituting the heat medium flow path 6.
  • a case opening end portion (second opening end portion) 36 having an opening hole 8e for inserting the heat transfer block 4 is formed on the end surface 8b of the outer case 8 on the side where the heat transfer block 4 is accommodated. ing.
  • the case opening end portion 36 is formed in a size that allows the heat transfer block 4 to be inserted into the outer case 8, and the back surface 4 d of the flange portion 4 c covers the entire circumference in a state where the heat transfer block 4 is accommodated in the outer case 8. And has a shape that comes into contact with the case opening end 36.
  • Bolt holes 38 are formed at the four corners of the case opening end 36 at positions that match the bolt insertion holes 32 in a state where the heat transfer block 4 is accommodated in the outer case 8. That is, the flange portion 4c is bolted and joined to the case opening end portion 36 so that the heat transfer block 4 and the outer case 8 are joined only at the respective opening end portions 30 and 36, in other words, heat transfer.
  • the block 4 is fixed to the outer case 8 in a non-contact state except for the case opening end portion 36.
  • the heat medium inlet 40 is formed in a pipe shape at the end on the terminal 16 side. It is projecting.
  • the outlet portion 42 of the heat medium projects in a pipe shape substantially diagonally to the inlet portion 40 of the side surface 8c. It is installed. That is, the inlet part 40 and the outlet part 42 are provided in the vicinity of each apex that forms a diagonal in the longitudinal direction of the side surface 8c.
  • two guides 34 are provided with their heights alternately shifted in the vertical direction with respect to the longitudinal direction of the heating wire heater 2.
  • the height of the guide 34 on the front side is lowered when the height of the guide 34 on the back side opposite to the front side is higher than the height of the guide 34 on one back side.
  • the height of the guide 34 on the back side is lower than the height of the one guide 34 on the back side, the height is increased.
  • the heat medium flows along the guides 34 of the heating wire heater 2. It flows through the flow path 6 while meandering in the longitudinal direction, that is, from the inlet 40 toward the outlet 42.
  • the heating device 1 of the first embodiment described above is composed of two units of the heat transfer block 4 and the outer case 8, and each terminal portion 16 of each heating wire heater 2 connected to the energization circuit 22 is connected to the end portion of the block opening. 30 can be integrated and positioned, the connection of each terminal portion 16 to the energization circuit 22 can be easily performed collectively, and the assembly of the heating device 1 can be improved and the manufacturing cost can be reduced. Can be realized.
  • terminal portion 16 is fixed to the block opening end portion 30, and the end surfaces 16 a and 30 a of each terminal portion 16 and the block opening end portion 30 are flush with each other, so that each terminal portion 16 becomes the block opening end portion 30.
  • the terminals can be reliably integrated and positioned, and the connection of the terminal portions 16 to the energization circuit 22 can be further easily performed.
  • the flow path 6 for the heat medium is formed between the two units 4 and 8, so that the number of connection points of the flow path 6 is significantly reduced as compared with the case where the flow path 6 is formed of a pipe or the like. be able to.
  • the heat transfer block 4 and the outer case 6 are joined only by the opening end portions 30 and 36 with a simple configuration in which the flange portion 4c is provided at the block opening end portion 30 of the heat transfer block 4. Therefore, the assembling property of the heating device 1 can be further improved, and the manufacturing cost can be reduced.
  • the heat medium flow path 6 is formed between the two units 4 and 8, and the direct heat transfer from the heating wire heater 2 to the outer case 8 is almost completely cut off without the need for a heat insulating material. Since the heat of the heating wire heater 2 can be transmitted to the heat medium, the heat transfer efficiency of the heating device 1 can be increased. Moreover, since the flow path 6 can be formed by joining one place of each opening end part 30 and 36 of the said two units 4 and 8 via sealing materials, such as a metal gasket material of a double-sided rubber coating, The risk of heat medium leakage in the heating device 1 can be reduced, and the reliability of the heating device 1 can be increased.
  • the heat transfer block 4 by providing the heat transfer block 4 with a guide 34 that is not in contact with the inner surface 8a of the outer case 8, direct heat transfer from the heat transfer block 4 to the outer case 8 is completely blocked, and the heat medium is removed. It is possible to smoothly flow from the inlet 40 to the outlet 42 of the flow path 6. Specifically, the heat medium flows along the guide 34 in a spiral direction from the longitudinal direction of the heating wire heater 2, that is, from the inlet portion 40 toward the outlet portion 42, so that the substantial length of the passage 6 is increased. Since the length can be increased, the heat transfer time of the heat medium to the heat transfer block 4 and, consequently, the heating wire heater 2 can be effectively increased. Moreover, since the guide 34 is formed in the heat transfer block 4, the heat transfer area of the heat medium with respect to the heat transfer block 4 can also be increased, so that the heat transfer efficiency of the heating device 1 can be increased.
  • the inlet portion 40 and the outlet portion 42 are respectively provided in the vicinity of the tops that are diagonal to the longitudinal direction of the side surface 8 c of the outer case 8, the heat medium is smoothly spread over the corners of the outer case 8. Therefore, the heat transfer efficiency of the heating device 1 can be further increased.
  • the terminal portion 16 can be cooled with a heat medium. Therefore, as described above, since the terminal portion 16 has a lower heat-resistant temperature than the main body of the heating wire heater 2, it is possible to prevent the terminal portion 16 from reaching a temperature generated by the heating wire 12. As a result, the reliability of the heating device 1 can be improved.
  • the heat transfer efficiency of the heating device 1 can be further increased. Furthermore, by performing energization control for controlling whether or not the plurality of heating wire heaters 2 are energized, the energization circuit 22 of the heating device 1 can be made into a plurality of circuits and individually energized. Even if it does, the heating apparatus 1 can be operated with the other electricity supply circuit 22. FIG. Furthermore, since the inrush current with respect to the heating device 1 can be reduced by energizing the plurality of terminal portions 16 in stages when the heating device 1 is started, an overload trip of the heating device 1 can be prevented. Reliability can be further increased.
  • FIG. 8 shows the heating device 44 of the second embodiment.
  • the heat transfer block 46 constituting the heating device 44 of the second embodiment is integrally formed with a convex guide 48 having a protruding height similar to that of the guide 34 of the first embodiment on the side surface 4b.
  • the guide 48 of the present embodiment is continuously provided in a spiral shape along the longitudinal direction of the heating wire heater 2, and as shown by a solid line arrow and a broken line arrow in FIG. 8 (on the back side of the heat transfer block 46).
  • the heat medium flows in the flow path 6 while spirally turning along the guide 48 along the guide 48 in the longitudinal direction of the heating wire heater 2, that is, from the inlet 40 to the outlet 42. To do.
  • the heat transfer block 46 since the substantial length of the flow path 6 can be further increased as compared with the guide 34 of the first embodiment, the heat transfer block 46, and consequently the heating wire heater 2 The heat transfer time of the heat medium can be increased more effectively. Moreover, since the guide 48 is formed in the heat transfer block 46, the heat transfer area of the heat medium with respect to the heat transfer block 46 can also be increased, so that the heat transfer efficiency of the heating device 1 can be further increased.
  • FIG. 9 shows the heating device 50 of the third embodiment.
  • a plurality of protrusions 54 having a projection height similar to the guide 34 are arranged in a non-linear manner. It is integrally formed with.
  • the projection 54 is Compared to the case where only the guide 34 of the first embodiment is provided by circulating the heat medium in the flow path 6 in a turbulent manner, the substantial length of the flow path 6 can be further increased.
  • the heat transfer time of the heat medium with respect to the block 52, and by extension, the heating wire heater 2, can be further increased effectively.
  • the heat transfer area of the heat medium to the heat transfer block 52 can be further increased as compared with the case where only the guide 34 of the first embodiment is provided. Therefore, the heat transfer efficiency of the heating device 1 can be further increased. It should be noted that the same effect can be obtained by providing a similar protrusion 54 on the heat transfer block 46 of the second embodiment.
  • the present invention is not limited to the above-described embodiments, and various modifications can be made.
  • the four heating wire heaters 2 are accommodated in the heat transfer blocks 4, 46, and 52.
  • the energization control for the heater 2 is possible.
  • the numbers and shapes of the guides 34 and 48 and the protrusions 54 are not limited to those of the above embodiment.
  • the guides 34 and 48 and the protrusion 54 are provided on the outer surfaces of the heat transfer blocks 4, 46 and 52, respectively, but are not limited thereto, and may be provided on the inner surface 8 a of the outer case 8. In this case, direct heat transfer from the heat transfer block 4 to the outer case 8 is completely achieved by disengaging the guides 34, 48 and the protrusions 54 from the outer surfaces of the heat transfer blocks 4, 46, 52.
  • the heat medium can be smoothly flowed from the inlet 40 to the outlet 42 of the flow path 6 while being blocked, and the heat transfer efficiency of the heating device 1 can be increased.
  • the guides 34, 48 and the protrusions 54 are provided on the outer surfaces of the heat transfer blocks 4, 46, 52, respectively, the processing accuracy when the guides 34, 48 and the protrusions 54 are manufactured by casting can be increased. It is advantageous.
  • a heating element other than the heating wire heater 2 can be applied to the heating devices 1, 44, and 50 of the present invention, or a fluid other than water may be used as a heat medium.
  • the manufacturing cost of the heating devices 1, 44, 50 can be reduced by using an inexpensive general-purpose heating wire heater 2, and the general-purpose heating wire heater 2 is generally widely spread and highly reliable. The reliability of the heating devices 1, 44, 50 can be improved, which is preferable.
  • the heating device 1, 44, 50 of the present invention into a vehicle air conditioner for a hybrid vehicle or an electric vehicle, a cooling water circuit, a refrigeration circuit, and thus an air conditioner provided with these circuits, and thus this air conditioner It is preferable because the assembling property of the vehicle to be mounted can be improved and the manufacturing cost can be reduced.
  • the heating devices 1, 44, 50 can be used not only in the vehicle air conditioner but also as a heat source for other purposes.
  • Heating device Heating wire heater (heating element) 4 Heat transfer block (first housing) 4b Side (outside) 6 Flow path 8 Outer case (second housing) 8a Inner surface 8c Side surface 16 Terminal (end) 16a End face 26 ECU (control means) 30 Block opening end (first opening end) 30a End face 34, 48 Guide 36 Case opening end (second opening end) 40 Inlet part 42 Outlet part 54 Projection part

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention porte sur des dispositifs de chauffage tels que, dans une configuration simple, les coûts de fabrication peuvent être réduits et l'efficacité et la fiabilité du transfert de chaleur peuvent être augmentées. Chacun des dispositifs de chauffage (1, 44, 50) comporte un premier boîtier (4) et un second boîtier (8), ledit premier boîtier (4) contenant des éléments de chauffage (2) et ayant une section d'extrémité perforée (30) sur le côté où sont contenus les éléments de chauffage (2), ledit second boîtier (8) contenant le premier boîtier (4) et ayant un trajet d'écoulement (6) formé entre le second boîtier (8) et le premier boîtier (4), et ledit trajet d'écoulement (6) servant de passage d'écoulement pour le milieu chauffant desdits éléments de chauffage (2). Chacun des éléments de chauffage (2) présente, à une extrémité de celui-ci, une section d'extrémité (16) qui permet d'établir une liaison extérieure dans le but d'amener chacun desdits éléments de chauffage (2) à générer de la chaleur. Une pluralité d'éléments de chauffage (2) est contenue dans le premier boîtier (4). Chacun desdits éléments de chauffage (2) est contenu dans le premier boîtier (4), ladite section d'extrémité (16) étant située sur le côté où se trouve la section d'extrémité perforée (30).
PCT/JP2011/000109 2010-01-13 2011-01-13 Dispositif de chauffage WO2011086909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010004859A JP2011143780A (ja) 2010-01-13 2010-01-13 加熱装置
JP2010-004859 2010-01-13

Publications (1)

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WO2011086909A1 true WO2011086909A1 (fr) 2011-07-21

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WO (1) WO2011086909A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104247559A (zh) * 2012-04-20 2014-12-24 三电有限公司 加热装置
EP2884198A1 (fr) * 2013-12-13 2015-06-17 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP2884199A1 (fr) * 2013-12-13 2015-06-17 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP2562485A3 (fr) * 2011-08-25 2015-08-26 Homag Holzbearbeitungssysteme GmbH Chauffage de milieux
EP4198409A1 (fr) * 2021-12-20 2023-06-21 Valeo Autoklimatizace k.s. Dispositif de chauffage électrique d'un fluide de transfert de chaleur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012136154A (ja) * 2010-12-27 2012-07-19 Sanden Corp 車両用加熱装置
DE102012207305A1 (de) * 2012-05-02 2013-11-07 Webasto Ag Heizvorrichtung für ein Fahrzeug und Verfahren zum Betreiben der Heizvorrichtung
DE102017106250A1 (de) * 2017-03-23 2018-09-27 Webasto SE Elektrisches Heizgerät

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JPS5073048U (fr) * 1973-11-02 1975-06-26
JPS5554205Y2 (fr) * 1975-09-19 1980-12-15
JPS5840A (ja) * 1981-06-22 1983-01-05 Matsushita Electric Ind Co Ltd 熱交換装置
JPS58120039A (ja) * 1982-01-08 1983-07-16 Matsushita Electric Ind Co Ltd 温水加熱装置
JPH05228465A (ja) * 1992-02-18 1993-09-07 Shinko Pantec Co Ltd 超純水加熱装置
JP2005172330A (ja) * 2003-12-10 2005-06-30 Matsushita Electric Ind Co Ltd 熱交換器とそれを備えた衛生洗浄装置
JP2008512157A (ja) * 2004-09-13 2008-04-24 ネステク ソシエテ アノニム 液体加熱装置及び液体加熱方法
JP2009092346A (ja) * 2007-10-11 2009-04-30 Kelk Ltd 流体加熱装置

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JPS5073048U (fr) * 1973-11-02 1975-06-26
JPS5554205Y2 (fr) * 1975-09-19 1980-12-15
JPS5840A (ja) * 1981-06-22 1983-01-05 Matsushita Electric Ind Co Ltd 熱交換装置
JPS58120039A (ja) * 1982-01-08 1983-07-16 Matsushita Electric Ind Co Ltd 温水加熱装置
JPH05228465A (ja) * 1992-02-18 1993-09-07 Shinko Pantec Co Ltd 超純水加熱装置
JP2005172330A (ja) * 2003-12-10 2005-06-30 Matsushita Electric Ind Co Ltd 熱交換器とそれを備えた衛生洗浄装置
JP2008512157A (ja) * 2004-09-13 2008-04-24 ネステク ソシエテ アノニム 液体加熱装置及び液体加熱方法
JP2009092346A (ja) * 2007-10-11 2009-04-30 Kelk Ltd 流体加熱装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562485A3 (fr) * 2011-08-25 2015-08-26 Homag Holzbearbeitungssysteme GmbH Chauffage de milieux
CN104247559A (zh) * 2012-04-20 2014-12-24 三电有限公司 加热装置
CN104247559B (zh) * 2012-04-20 2016-03-30 三电有限公司 加热装置
EP2884198A1 (fr) * 2013-12-13 2015-06-17 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP2884199A1 (fr) * 2013-12-13 2015-06-17 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP4198409A1 (fr) * 2021-12-20 2023-06-21 Valeo Autoklimatizace k.s. Dispositif de chauffage électrique d'un fluide de transfert de chaleur
WO2023118025A1 (fr) * 2021-12-20 2023-06-29 Valeo Autoklimatizace S.R.O. Dispositif de chauffage pour le chauffage électrique d'un fluide caloporteur

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