WO2023181722A1 - Dispositif de chauffage à fluide chauffant - Google Patents

Dispositif de chauffage à fluide chauffant Download PDF

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Publication number
WO2023181722A1
WO2023181722A1 PCT/JP2023/005388 JP2023005388W WO2023181722A1 WO 2023181722 A1 WO2023181722 A1 WO 2023181722A1 JP 2023005388 W JP2023005388 W JP 2023005388W WO 2023181722 A1 WO2023181722 A1 WO 2023181722A1
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WO
WIPO (PCT)
Prior art keywords
heater
control board
heat medium
heating device
medium heating
Prior art date
Application number
PCT/JP2023/005388
Other languages
English (en)
Japanese (ja)
Inventor
健二 安本
Original Assignee
サンデン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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 WO2023181722A1 publication Critical patent/WO2023181722A1/fr

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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
    • H05B3/06—Heater elements structurally combined with coupling elements or holders

Definitions

  • the present invention relates to a heat medium heating device.
  • Electric Coolant Heater is a device that electrically heats the heat medium (including water, coolant, refrigerant, etc.) flowing through a heat exchanger for air conditioning, etc.
  • a heating element such as an electric wire heater or a PTC (Positive Temperature Coefficient) heater is installed inside.
  • a control board for controlling the above-mentioned electric heating wire heater and PCT heater is arranged in a housing space that is separated from the flow path of the heat medium.
  • Electrical components such as an IGBT (Insulated Gate Bipolar Transistor) mounted on a control board are arranged (see Patent Document 1 below).
  • control board In a conventional electric heat medium heating device, the control board is arranged in parallel with the heater at a position spaced apart from the heater's installation position in the housing so that the control board does not come close to the heater. Furthermore, since the IGBT mounted on the control board is a switching element that allows a large current to flow through the heater, it itself becomes a heat source. It is being cooled close to
  • an object of the present invention is to simplify internal electrical connections in a heat medium heating device, and to reduce costs by reducing the number of parts.
  • a heat medium heating device comprising a casing in which a heater is supported and a flow path through which a heating medium flows near the heater, and a control chamber in which a control board for controlling the heater is provided in the casing.
  • the casing includes a support protrusion that supports the control board at a position away from the heater, and a mounting surface that is raised in the direction in which the support protrusion protrudes and is close to the control board.
  • a heat medium heating device comprising: a raised portion that is in thermal contact with the flow path; and a heat generating circuit component connected to the control board is placed on the placement surface.
  • the heat medium heating device of the present invention having such features can simplify internal electrical connections and reduce costs by reducing the number of parts.
  • FIG. 1 is an external perspective view of a heat medium heating device according to an embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a heat medium heating device according to an embodiment of the present invention.
  • FIG. 1 is an enlarged view of main parts of a heat medium heating device according to an embodiment of the present invention.
  • FIG. 1 is an exploded side view of a heat medium heating device according to an embodiment of the present invention.
  • a vertical cross-sectional view of the main body frame on which the heater, control board, and circuit components are mounted (a cross section perpendicular to the longitudinal direction of the heater).
  • a vertical cross-sectional view of the main body frame in which the heater, control board, and circuit components are mounted (a cross-section along the longitudinal direction of the heater).
  • FIG. 3 is a plan view showing a fastening surface of the main body frame.
  • the heat medium heating device 1 includes a casing 10 in which a heater 2 is supported and a flow path (not shown) through which the heat medium flows near the heater 2.
  • the housing 10 is composed of blocks that can be divided into three, and each block is a main body frame 10A, a lid frame 10B, and a heater support frame 10C.
  • the housing 10 is provided with an inlet 11 and an outlet 12 for the heat medium.
  • the inlet 11 is provided in the heater support frame 10C among the blocks that can be divided into three parts of the housing 10, and the outlet 12 is provided in the main body frame 10A, but the present invention is not particularly limited to this.
  • the heater 2 is a cartridge type cylindrical heating wire heater, and a pair (two) of the heaters 2 are arranged in parallel in the housing 10, with a part of the heater support frame 10C.
  • the end portion is housed in the main body frame 10A.
  • a flow path is formed around the heater 2 in the casing 10, through which the heat medium that has flowed in from the inlet 11 flows, and the heat medium that has passed through this flow path and been heated by the heater 2 flows from the outlet 12. It's starting to leak out.
  • External piping (not shown) is connected to the inflow port 11 and the outflow port 12, respectively, and a seal portion is formed at each of these connection portions.
  • the main body frame 10A of the housing 10 and the heater support frame 10C are airtightly connected with a gasket 13 in between.
  • the aforementioned heat medium flow path is formed within the opening of the gasket 13, and the flow path in the heater support frame 10C that communicates with the inlet 11 and the flow path in the main body frame 10A that communicates with the outlet 12 are formed in the gasket. It communicates within the opening of 13.
  • the heater insertion opening 14 of the heater support frame 10C is sealed by the sealing member 2A by inserting the heater 2, and the connection terminal 2B at the end of the heater 2 is exposed to the control chamber 20 side, which will be described later, of the main body frame 10A.
  • the exposed opening (not shown) is sealed by a sealing member 2C.
  • the casing 10 includes a main body frame 10A on which the control board 3 is supported, a lid frame 10B that covers the control board 3 and is detachably attached to the main body frame 10A, and a heater 2 that is detachably attached to the main body frame 10A.
  • the heater support frame 10C is provided to support the heater support frame 10C.
  • the control chamber 20 is formed by a portion of the main body frame 10A that is opened by removing the lid frame 10B and a space inside the lid frame 10B, and is airtightly separated from the aforementioned heat medium flow path in the housing 10. has been done.
  • the housing 10 includes a support protrusion 21 that supports the control board 3 on the side of the main body frame 10A facing the control chamber 20, and also includes a protrusion 22 that protrudes in the direction in which the support protrusion 21 protrudes.
  • the control board 3 is supported at the tip of the support protrusion 21 and fixed with a screw 3P, so that the control board 3 is supported parallel to the heater 2 at a position apart from the heater 2 supported within the housing 10.
  • the raised portion 22 provided on the main body frame 10A of the housing 10 has a mounting surface 22A on its top, and a heat generating circuit component (for example, an IGBT unit) 4 is placed on the mounting surface 22A via an insulating sheet 4F. It is placed there.
  • the mounting surface 22A faces the surface of the control board 3, and the terminals 4A of the circuit components 4 mounted on the mounting surface 22A are connected to the control board 3.
  • the main body frame 10A and the lid frame 10B of the casing 10 are fastened together with a plurality of screws 15 to form an airtight control chamber 20 therein.
  • a fastening surface 23 for fastening the lid frame 10B with the screws 15 is formed at the outer peripheral end of the main body frame 10A. It includes two short sides located at diagonal positions, and is formed to diagonally cross the side surface of the housing 10 where the inlet 11 and the outlet 12 are provided.
  • the above-mentioned heater insertion opening 14 and the wiring insertion hole described later can be formed in the lid frame 10B of the housing 10. It can be concentrated on an unrelated side surface, and furthermore, the open space of the control room 20 when the lid frame 10B is removed can be enlarged. Thereby, it is possible to improve the ease of handling the heater 2 and the wiring, and it is also possible to improve the workability of attaching and maintaining the control board 3 and the like in the control room 20.
  • An insertion hole 30 is provided on the side surface of the housing 10 (the side surface of the main body frame 10A), through which the wiring 5 whose end is connected to the control board 3 disposed in the control room 20 passes.
  • three insertion holes 30 (insertion holes 30A, 30B, and 30C) are provided, and two of them are used for HV wiring for passing a large current to the heater 2 via the heat generating circuit component 4.
  • One is provided for communication wiring (for LV wiring) for transmitting control signals of the in-vehicle network to the control board.
  • the opening of the insertion hole 30 is It is provided on the end surface 16A of the protrusion 16 that protrudes outward from the side surface.
  • a seal member 31 that seals the insertion hole 30 is attached to the end surface 16A of the protrusion 16.
  • the end face 16A is provided with a fixing hole 16B, and by tightening the screw 31P into the fixing hole 16B through the seal member 31, the seal member 31 is attached in close contact with the end face 16A.
  • the sealing member 31 seals the insertion hole 30 in a state in which the wiring 5 is inserted, and includes an insertion sealing portion 31A through which the wiring 5 is inserted.
  • the connector 32 includes a lead-out terminal 32A that is connected to the control board 3, and by connecting the terminal of the communication wiring to the connector 32, the communication wiring is connected to the control board 3.
  • the raised portion 22 is formed on the housing 10 (main body frame 10A), and the placement surface 22A at the top of the raised portion 22 is controlled.
  • the distance H1 from the mounting surface 22A of the raised portion 22 to the control board 3 facing the raised portion 22 can be adjusted to the heat medium flow path formed around the heater 2 from the mounting surface 22A. It is shorter than the distance H2 to 6 (H1 ⁇ H2).
  • the heat generating circuit component 4 placed on the mounting surface 22A via the insulating sheet 4F can be connected to the control board 3 by simply soldering its own terminal 4A to the control board 3.
  • the electrical connection between the circuit component 4 and the control board 3 can be simplified, and the number of parts can be reduced to reduce costs.
  • the distance between the exothermic circuit component 4 and the heat medium flow path 6 becomes larger than that of the conventional case, but the material of the housing 10 (body frame 10A), especially the part where the raised portion 22 is formed,
  • a material with high thermal conductivity for example, an aluminum-based material
  • the heat medium flow path 6 and the raised portion 22 are in efficient thermal contact, and the heat-generating circuit component 4 is placed in the housing 10. Effective cooling can be achieved by the heat medium flowing through the flow path 6 inside.
  • the thermal conductivity of the raised portion 22 is important.
  • the material of the main body frame 10A in which the protrusion 22 is provided is made of a material with particularly high thermal conductivity (it is made of a material different from that of the other blocks). ), the above-mentioned effects can be obtained regardless of the materials of other blocks.
  • the heater support frame 10C that supports the heater 2 is required not to dissipate the heat of the heater 2, it is effective to make the heater support frame 10C a separate block from the main body frame 10A in order to obtain the above-mentioned effects. become.
  • the protrusion direction of the support protrusion 21 that supports the control board 3 is perpendicular to the surface of the control board 3, and the above-mentioned raised portion 22 is raised in the protrusion direction of the support protrusion 21.
  • a positioning portion 22B is provided on the side of the mounting surface 22A and projects along the direction in which the support projection 21 projects (direction perpendicular to the surface of the control board 3).
  • the positioning parts 22B are provided on both left and right sides of the mounting surface 22A, and the insulating sheet 4F is positioned and arranged between the pair of positioning parts 22B. Providing such a positioning portion 22B improves workability when positioning the insulating sheet 4F.
  • the circuit component 4 placed on the placement surface 22A is fixed with a fixture 4C whose one end is attached to the main body frame 10A with a fixing screw 4B. Furthermore, a temperature sensor 7 for managing the temperature of the circuit component 4 is mounted on the surface of the control board 3 facing the circuit component 4 . In this example, by making the distance between the control board 3 and the circuit component 4 close, the temperature of the circuit component 4 can be managed by directly mounting the temperature sensor 7 on the control board 3. Thereby, wiring for connecting the temperature sensor 7 to the control board 3 can be omitted, and in this respect as well, it is possible to reduce the number of parts and reduce costs.
  • connection terminal 2B of the heater 2 is connected to the control board 3 via the relay component 2B1.
  • the control chamber 20 in which the control board 3 is housed is formed inside the surrounding fastening surface 23, as shown in FIG.
  • the screws 15 for fastening the main body frame 10A and the lid frame 10B are fastened inside the control chamber 20 so as not to protrude outward from the periphery of the main body frame 10A (casing 10).
  • the circuit component 4 by bringing the circuit component 4 closer to the control board 3, relay components and connection wiring that connect the two are omitted, thereby securing a fastening space for the screws 15 inside the control chamber 20.
  • the heat medium heating device 1 described above is installed in a vehicle such as a hybrid car or an electric car, and in the case of a hybrid car, it is used as an auxiliary heat source for supplying heat to supplement the insufficient waste heat of the engine. In this case, it is applied to vehicle air conditioners as an alternative heat source that supplies heat in place of an engine that does not exist.
  • LLC Long Life Coolant
  • the LLC circuit is installed in the vehicle air conditioner, and the LLC heat heated by the engine or heat medium heating device 1 is used to heat the refrigerant circulating in the refrigerant circuit installed in the vehicle air conditioner.
  • the room is heated and cooled.
  • the heating circuit in which antifreeze circulates is provided with a heating medium heating device 1 together with a heater core, and the heating medium heating device 1 is used as a heat source for heating the antifreeze.
  • air heated by a heater core is blown into the passenger compartment.
  • the refrigerant of the refrigerant circuit flows through the flow path of the heat medium heating device 1, and the refrigerant is heated by the heater 2.
  • the refrigerant circuit itself serves as a heat source for the vehicle air conditioner as a heat pump, but the heat medium (water) of the heat medium circuit (water circuit) that exchanges heat with the refrigerant circuit is passed through the flow path of the heat medium heating device 1.
  • Hot water can be obtained and used as a heat source for a vehicle air conditioner or for temperature control of objects to be temperature controlled, such as batteries.

Landscapes

  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention concerne un dispositif de chauffage à fluide chauffant qui est tel que la connexion électrique d'une partie interne est simplifiée, et simultanément les coûts sont réduits par diminution du nombre de composants. Plus précisément, l'invention concerne un dispositif de chauffage à fluide chauffant qui est équipé d'un boîtier supportant un élément chauffant dans sa partie interne, et possédant un trajet d'écoulement destiné à l'écoulement d'un fluide chauffant à proximité de l'élément chauffant, et dans lequel une chambre de commande pourvue d'un substrat de commande commandant l'élément chauffant, est agencée à l'intérieur du boîtier. Le boîtier, tout en étant équipée d'une saillie de maintien maintenant le substrat de commande en une position éloignée de l'élément chauffant, est équipé d'une partie élévation qui possède une face support venant en contact avec le substrat de commande par élévation dans la direction de saillie de la saillie de maintien, et qui se trouve en contact thermique avec le fluide chauffant. Un composant circuit producteur de chaleur connecté au substrat de commande, est supporté par la face support.
PCT/JP2023/005388 2022-03-22 2023-02-16 Dispositif de chauffage à fluide chauffant WO2023181722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-045637 2022-03-22
JP2022045637A JP2023139884A (ja) 2022-03-22 2022-03-22 熱媒体加熱装置

Publications (1)

Publication Number Publication Date
WO2023181722A1 true WO2023181722A1 (fr) 2023-09-28

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PCT/JP2023/005388 WO2023181722A1 (fr) 2022-03-22 2023-02-16 Dispositif de chauffage à fluide chauffant

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WO (1) WO2023181722A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011225074A (ja) * 2010-04-19 2011-11-10 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを用いた車両用空調装置
JP2013220708A (ja) * 2012-04-16 2013-10-28 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを備えた車両用空調装置
JP2016159693A (ja) * 2015-02-27 2016-09-05 三菱重工オートモーティブサーマルシステムズ株式会社 熱媒体加熱装置の製造方法
JP2020525986A (ja) * 2017-06-30 2020-08-27 杭州三花研究院有限公司Ｈａｎｇｚｈｏｕ Ｓａｎｈｕａ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｃｏ．，Ｌｔｄ． 電気ヒーター
CN111954323A (zh) * 2020-09-11 2020-11-17 上海威迈斯新能源有限公司 Ptc加热器的igbt模块固定结构及ptc加热器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011225074A (ja) * 2010-04-19 2011-11-10 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを用いた車両用空調装置
JP2013220708A (ja) * 2012-04-16 2013-10-28 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを備えた車両用空調装置
JP2016159693A (ja) * 2015-02-27 2016-09-05 三菱重工オートモーティブサーマルシステムズ株式会社 熱媒体加熱装置の製造方法
JP2020525986A (ja) * 2017-06-30 2020-08-27 杭州三花研究院有限公司Ｈａｎｇｚｈｏｕ Ｓａｎｈｕａ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｃｏ．，Ｌｔｄ． 電気ヒーター
CN111954323A (zh) * 2020-09-11 2020-11-17 上海威迈斯新能源有限公司 Ptc加热器的igbt模块固定结构及ptc加热器

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