JP2010105570A - Warmup system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively perform the early warmup of an object engine to be warmed up, and the quick heating of a cabin while attaining the simplification, miniaturization and light weight of a structure of a heat accumulation device. <P>SOLUTION: In the warmup system for the vehicle provided with the heat accumulation device 10, the heat accumulation device 10 includes: an operation oil circulation chamber 17 circulated with the operation oil of an automatic transmission 40; and a heat accumulation material storage chamber 16 for storing a heat accumulation material 20 capable of performing heat exchange with the operation oil. The heat accumulation material storage chamber 16 is divided to a plurality of division chambers 16a and has a communication part 16b for making the plurality of division chambers 16a communicate with each other; and an opening/closing means 60 for opening and closing the communication part 16b. The opening/closing means 60 opens and closes the communication part 16b by moving the opening part 61a relative to the communication part 16b by a rotation plate 61 rotated along a plate surface 61c in the heat accumulation material 20. Since the resistance of the heat accumulation material 20 can be reduced and the opening/closing of the communication part 16b can be smoothly performed, the miniaturization of the rotation drive mechanism 62 and the simplification of the structure of the heat accumulation device 20 can be attained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle warm-up system including a heat storage device that can perform early warm-up of an internal combustion engine, a transmission, or the like, or immediate heating in a vehicle.

  2. Description of the Related Art Conventionally, as shown in Patent Documents 1 and 2, for example, there is a vehicle warm-up system including a heat storage device that warms up an internal combustion engine (hereinafter referred to as “engine”) or an automatic transmission by storing heat. The heat storage device (heat storage tank) described in Patent Document 1 uses engine cooling water as a heat storage medium and accommodates the heat storage medium in a highly heat-insulating container. Further, the heat storage device described in Patent Document 2 has a structure in which a flow path through which hydraulic fluid of an automatic transmission flows is covered with a heat storage material layer made of a high heat capacity material such as ceramic or magnesium oxide. If a warm-up system provided with such a heat storage device is used, it is possible to effectively warm up the engine and the automatic transmission at the time of starting the vehicle or to quickly heat the interior of the vehicle.

  By the way, in the heat storage apparatus as described above, as a heat storage material (heat storage element) that performs heat storage and heat release by heat exchange with a heat transfer medium that circulates from the engine to be warmed up, a latent heat storage material that can store heat in a supercooled state (heat storage element) Some have supercooled heat storage materials. Such a supercooled heat storage material stores heat by supplying heat from the heat transfer medium, changes phase (melts) from the solid phase to the liquid phase, and maintains the liquid phase state due to the subsequent temperature drop. It becomes a supercooled state. On the other hand, by releasing the supercooling state by the supercooling release means, the heat storage is released and the phase changes (solidifies) from the liquid phase to the solid phase. However, in such a supercooled heat storage material, when the heat supply is stopped in a state where the solid (crystal) state remains in the heat storage material during the heat storage, solidification proceeds with a subsequent temperature drop. There is a problem that heat storage is released without maintaining the supercooled state. Therefore, when performing heat storage on the heat storage material, it is necessary to completely melt the entire heat storage material so that there is no solid portion in the heat storage material.

In this regard, in the heat storage device described in Patent Document 3, since the heat storage material is divided and sealed in a plurality of containers, heat storage is performed for each heat storage material sealed in each container. Therefore, it is possible to promote the melting of the heat storage material so that there is no solid portion even with a short heat supply. However, in the heat storage device of Patent Document 3, since the means (nucleation device) that releases the supercooled state of the heat storage material is installed in each of the plurality of containers that store the heat storage material, the number of parts of the heat storage device increases. The structure was complicated and large.
JP-A-10-71837 JP 2002-39335 A JP-A-6-117787

  The present invention has been made in view of the above points, and its purpose is to achieve early warm-up of the engine to be warmed up and immediate heating in the vehicle while simplifying, downsizing and lightening the structure of the heat storage device. An object of the present invention is to provide a vehicle warm-up system that can be effectively performed.

  In order to solve the above problems, a warm-up system for a vehicle according to the present invention releases a heat storage element (20) made of a latent heat storage material capable of storing heat in a supercooled state, and the supercooled state of the heat storage element (20). A heat transfer medium flow for circulating a heat transfer medium between the heat storage device (10) having the supercooling release means (25) and the engine to be warmed up (30, 40) and the heat storage device (10). The heat storage device (10) includes a passage (31, 34, 36, 41), and a heat transfer medium flow chamber (10) through which a heat transfer medium from the heat transfer medium flow path (31, 34, 36, 41) flows. 14, 15, 17, 18) and a heat storage element storage chamber (16) that stores a heat storage element (20) capable of heat exchange with the heat transfer medium, and a plurality of heat storage element storage chambers (16) are provided. Communication section that is divided into a plurality of divided chambers (16a) and communicates with the plurality of divided chambers (16a). 16b) and an opening / closing means (60) for switching the open / close state of the communication portion (16b), and the opening / closing means (60) is disposed in the divided chamber (16a) so as to face the communication portion (16b). And a rotary drive mechanism (62) for rotating the rotary body (61) along its plate surface (61c). The opening / closing state of the communicating portion (16b) is switched by changing the position of the opening (61a) with respect to the communicating portion (16b) by the rotation of the rotating body (61) by (62). In addition, the code | symbol in parenthesis here has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.

  Further, in this case, the supercooling release means (25) is provided only in any one of the plurality of division chambers (16a), and the opening / closing means (60) is used when the heat storage element (20) stores heat. The communication part (16b) is opened by this, and the plurality of divided chambers (16a) communicate with each other, and when the supercooling release means (25) releases the supercooled state of the heat storage element (20), the open / close means (60) communicates. The part (16b) may be closed so that the heat storage element accommodation chamber (16) is divided into a plurality of division chambers (16a). Thereby, even when the total capacity of the heat storage element is large, heat storage can be performed for each heat storage element divided and accommodated in each divided chamber, so that heat storage can be completed efficiently. In addition, when the heat storage element is radiated, the subcooling release means can be divided into a plurality of divided chambers because the heat storage element can be released in a state where the heat storage elements are integrated with each other through the plurality of divided chambers. It is sufficient to provide only one of the divided rooms. Therefore, the number of parts of the heat storage device can be reduced, and the structure of the heat storage device can be simplified, downsized, and reduced in weight. As a result, while simplifying the structure of the heat storage device, it is possible to efficiently store and dissipate heat to the heat storage element in a short period of time, and it is effective for early warm-up of the engine to be warmed up and immediate heating in the vehicle. Will be able to do.

  Furthermore, in this warming-up system for a vehicle, as an opening / closing means for switching the open / close state of the communication portion, a flat plate-like rotator having an opening disposed facing the communication portion in the divided chamber, and the rotator as a plate A rotation drive mechanism that rotates along the surface, and the opening / closing state of the communication portion is switched by changing the position of the opening with respect to the communication portion by rotation of the rotating body by the rotation drive mechanism. According to this configuration, since the rotating body in the heat storage element is rotated along its plate surface, the rotating body can be smoothly rotated with the resistance received from the heat storage element reduced as much as possible, and the communication path can be opened and closed. Can be easily switched. Therefore, the opening / closing member can be reliably rotated with a small driving force even in a heat storage element whose viscosity has increased and fluidity has decreased after heat dissipation due to release of supercooling. This can lead to downsizing and cost reduction of the heat storage device. In addition, the width of the cross-sectional area of the communication portion can be secured without affecting the opening / closing operation of the communication portion, so that the plurality of divided chambers can be communicated with each other sufficiently and sufficiently.

  In addition to this configuration, the inner peripheral end surface of the opening (61a) provided in the rotating body (61) is an inclined surface (61b) that is inclined with respect to the plate surface (61c) of the rotating body (61). Also good. In the opening / closing means of the present invention, it is necessary to rotate the rotating body in a state where the heat storage element of the heat storage element accommodating chamber enters the opening of the rotating body, but the inner peripheral end face of the opening is formed in the above inclined surface shape. For example, when the rotating body rotates, the heat storage element in the opening moves smoothly along the inner peripheral end face of the opening, so that the rotation of the rotating body does not have to be hindered by the heat storage element in the opening. Therefore, the rotating body can be smoothly rotated in a state where the resistance received from the heat storage element is further reduced.

  Moreover, you may install the cover member (65) which partitions off between this rotary body (61) and a thermal storage element (20) around the rotary body in a division chamber (16a). According to this, since the contact area between the heat storage element and the rotating body can be reduced, the adhesion resistance generated by the heat storage element when the rotating body rotates can be reduced. Therefore, the rotating body can be rotated more smoothly.

  Further, in this case, a passage (65b) communicating with the heat transfer medium circulation chamber (17) may be formed inside the cover member (65). According to this, since heat exchange can be performed between the heat storage element in contact with the cover member and the heat transfer medium flowing through the passage, the heat transfer medium is heated by the heat storage element or is applied to the heat storage element by the heat transfer medium. It becomes possible to improve the efficiency of heat storage.

  As an embodiment of the above vehicle warm-up system, the communication portion (16b) is provided at two or more locations so as to communicate with three or more divided chambers (16a), and the opening and closing means (60) A plurality of rotating bodies (61) arranged corresponding to the two or more communicating portions (16b); and a rotating shaft (63) connecting the plurality of rotating bodies (61), and a rotational drive mechanism ( A plurality of rotating bodies (61) may be integrally rotated by rotation of the rotating shaft (63) by 62). According to this, the structure for enabling opening and closing of the communicating portion that communicates each divided chamber can be realized with a simple mechanism.

  In this case, the opening (61a) of at least one of the rotating bodies (61) among the plurality of rotating bodies (61) or the communication portion (16b) corresponding thereto is a plurality along the rotation direction of the rotating body (61). You may provide in the position. According to this, since the cross-sectional area of the communication part which the adjacent division chamber communicates can be ensured widely, and the cross-sectional area of the communication part can be varied according to the rotation angle of the rotating body, Heat storage and heat dissipation can be performed efficiently, and efficient use of heat energy generated in the vehicle can be promoted.

  In this case, at least one of the opening (61a) provided in each of the plurality of rotating bodies (61) or the communication portion (16b) corresponding to the opening (61a) is located at a different position in the rotating direction of the rotating body (61). By arranging, the number of communication portions (16b) opened by matching the openings (61a) may be arbitrarily set according to the rotation angle of the rotating body (61). According to this, it is possible to arbitrarily set the number of divided chambers that communicate with each other only by changing the angle of the rotating body in the rotational direction. Therefore, it is possible to efficiently store and release heat of the heat storage element while the configuration of the opening / closing means is simple, and it is possible to promote efficient use of the heat energy generated in the vehicle.

  Moreover, in this invention, you may make it perform cancellation | release operation | movement of the supercooled state of a thermal storage element (20) by rotation of the rotary body (60) with which said opening-and-closing means (60) is provided. As a specific example, when the opening / closing member moves, the surface of the opening / closing member moves relative to the heat storage element in contact therewith, so that the supercooled state of the heat storage element in that portion is released (nucleation is performed). To do so).

  In the vehicle warm-up system according to the present invention, the heat transfer medium to be circulated to the heat storage device (10) is the cooling water of the internal combustion engine (30), the lubricating oil of the internal combustion engine (30), or the transmission (40). It can be hydraulic fluid. As a result, it is possible to effectively warm up the internal combustion engine and the drive system engine early.

  According to the vehicle warm-up system of the present invention, while simplifying the structure of the heat storage device, heat storage and heat dissipation of the heat storage element can be efficiently performed in a short time, and the warm-up target engine can be warmed up quickly. It will be possible to effectively heat the machine and the vehicle immediately.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is a schematic diagram illustrating a configuration example of a vehicle warm-up system including a heat storage device according to the first embodiment of the present invention. The vehicle warm-up system 1 includes a heat storage device 10 having a heat storage material 20, a cooling water circulation path 31 that circulates cooling water (LLC) of the engine 30 to the heat storage device 10 and the heater core 45 of the vehicle interior heating device 44, and A hydraulic oil circulation path 41 that circulates hydraulic oil (ATF) of the automatic transmission (AT) 40 to the heat storage device 10 is provided. The cooling water circulation path 31 is led out from a water jacket (not shown) formed in the engine 30, communicates with the heat storage device 10, passes through the heater core 45 on the downstream side of the heat storage device 10, and is reintroduced into the water jacket of the engine 30. Has been. A cooling water pump 32 is interposed at a position immediately before being introduced into the engine 30. The cooling water pump 32 is driven in conjunction with rotation of a crankshaft (not shown) of the engine 30. The hydraulic oil circulation path 41 is provided with a hydraulic oil pump (electric pump) 42 for circulating the hydraulic oil and an oil temperature sensor 43 for detecting the temperature of the hydraulic oil. Although the detailed configuration of the heat storage device 10 will be described later, the cooling water circulation chamber 15 communicating with the cooling water circulation path 31, the heat storage material accommodation chamber 16 accommodating the heat storage material 20, and the hydraulic oil communicating with the hydraulic oil circulation path 41. And a circulation chamber 17.

  Although not shown in detail, the heater core 45 is installed in an air introduction duct that faces the vehicle. A blower fan 46 for sending air to the heater core 45 is incorporated in the air introduction duct. The operation of the blower fan 46 is controlled by an electronic control unit (hereinafter referred to as ECU) 50. A blower duct that communicates with the interior of the vehicle is provided on the downstream side of the heater core 45.

  A control panel (not shown) in the vehicle is provided with a heating switch 51 for heating the vehicle and a defroster switch 55 for blowing warm air from the defroster outlet. On / off signals for the heating switch 51 and the defroster switch 55 are output to the ECU 50. Therefore, the blower fan 46 operates in response to the ON signal of the heating switch 51 and the defroster switch 55, and the air in the vehicle sucked through the air introduction duct is blown again into the vehicle through the heater core 45 from the blower duct. Yes. The warm-up system 1 includes an outside air temperature sensor 54 that detects the outside air temperature. A detection signal from the outside air temperature sensor 54 is output to the ECU 50. In addition, an operation signal of an ignition switch (hereinafter referred to as an IG switch) 56 is sent to the ECU 50.

  A switching valve (open / close valve) 33 that switches between opening and closing of the cooling water circulation path 31 is installed between the heat storage device 10 and the heater core 45 in the cooling water circulation path 31. The switching valve 33 is controlled to be opened and closed by a signal from the ECU 50. Hereinafter, when the switching valve 33 is off, the switching valve 33 is opened to indicate a state in which the cooling water of the heat storage device 10 and the heater core 45 flows, and when the switching valve 33 is on, the switching valve 33 is switched on. The state where the valve 33 is closed and the cooling water of the heat storage device 10 and the heater core 45 does not flow is shown.

  Further, a radiator circulation path 35 for circulating the cooling water of the engine 30 to the radiator 47 is provided. The radiator circulation path 35 exits from the water jacket of the engine 30 and merges with the upstream side of the cooling water pump 32 in the cooling water circulation path 31. The radiator circulation path 35 is provided with a main flow path 35 a that communicates with the radiator 47 and a bypass flow path 35 b that bypasses the radiator 47. An electronically controlled thermostat valve (three-way valve) 37 is interposed at the junction of the bypass passage 35 b on the downstream side of the radiator 47. The opening / closing direction of the electronically controlled thermostat valve 37 is controlled by a signal from the ECU 50. In addition, a water temperature sensor 38 for detecting the coolant temperature is incorporated in the radiator circulation path 35. A detection signal from the water temperature sensor 38 is output to the ECU 50.

  FIG. 2 is a diagram illustrating a configuration example of the electronically controlled thermostat valve 37. In the following, when the electronically controlled thermostat valve 37 is off, it refers to the state shown in FIG. 5A, that is, the state where the main channel 35a is opened and the bypass channel 35b is closed, and the electronically controlled thermostat valve 37 is When it is on, it means the state shown in FIG. 5B, that is, the state where the main flow path 35a is closed and the bypass flow path 35b is opened.

  When the cooling water temperature detected by the water temperature sensor 38 is lower than a predetermined temperature (for example, 100 ° C.), the ECU 50 controls the electronic control thermostat valve 37 so that the cooling water does not flow to the radiator 47. On the other hand, when the cooling water temperature becomes equal to or higher than a predetermined temperature (for example, 110 ° C.), the electronic control thermostat valve 37 is turned off to control the cooling water to be guided to the radiator 47.

  The ECU 50 is connected to a receiving device 52 that can communicate with an external device wirelessly. As a result, the ECU 50 can remotely receive an on / off signal of the warm-up switch 53a provided in the engine start key 53. Therefore, when the passenger operates the warm-up switch 53a of the engine start key 53 outside the vehicle, the ECU 50 receives the signal, and the ECU 50 can issue a warm-up command to the warm-up system 1.

  3A and 3B are diagrams illustrating a detailed configuration of the heat storage device 10, in which FIG. 3A is an exploded perspective view, and FIG. 3B is a cross-sectional view taken along line AA in FIG. The heat storage device 10 includes a casing 11 made of a cylindrical body, an intermediate member 12 made of a cylindrical body having a slightly smaller diameter than the casing 11 installed inside the casing 11, and installed inside the intermediate member 12. It is a triple structure provided with the partition member 13 made. The partition member 13 has a storage space inside, and a plurality of fins 13a are formed on a pair of opposing side surfaces. The fins 13a are plate-shaped extending along the vertical direction of the casing 11, and a large number are arranged in the horizontal direction at predetermined intervals. Between the fins 13a, as shown in FIG. 5B, a gap 13b is provided that communicates with the outside of the partition member 13.

  In the heat storage device 10 constituted by each of the above members, a cooling water circulation chamber 15 through which the cooling water of the engine 30 circulates is provided between the housing 11 and the intermediate member 12. Between the intermediate member 12 and the partition member 13 is a hydraulic oil circulation chamber 17 through which hydraulic oil of the automatic transmission 40 flows. The inside of the partition member 13 is a heat storage material accommodation chamber 16 in which the heat storage material 20 is filled in a sealed state.

  Lid members 14 a and 14 b are attached to openings at the upper and lower ends of the housing 11. The lower lid member 14a is provided with a hydraulic oil inlet 17a for introducing hydraulic oil into the hydraulic oil circulation chamber 17, and the upper lid member 14b is provided with a hydraulic oil outlet 17b for extracting hydraulic oil. ing. Further, a cooling water inlet 15 a for introducing cooling water into the cooling water circulation chamber 15 and a cooling water outlet 15 b for extracting cooling water are provided on the side surfaces near the upper end and the lower end of the housing 11, respectively.

  The heat storage material accommodation chamber 16 has a plurality of divided chambers 16 a formed inside the fins 13 a in the partition member 13. As shown in FIG. 3B, the division chamber 16a is a substantially rectangular chamber having a long and narrow shape in plan view, and adjacent division chambers 16a are located at intermediate positions in the longitudinal direction of the division chambers 16a in plan view. A penetrating portion 16c penetrating through the straight line is formed. A linear rod-shaped rotating shaft 63 is installed in the through portion 16c, and a plurality of rotating plates (rotating bodies) 61 are installed on the rotating shaft 63 at predetermined intervals along the axial direction. Each rotary plate 61 is a circular plate having the same shape, and is arranged so as to be in surface contact with one side surface of each fin 13a. And the communication part 16b is formed in the position which opposes the rotating plate 61 of each fin 13a. The communication portion 16b is formed of a circular through hole that penetrates the fin 13a and communicates the divided chambers 16a and 16a on both sides. The communication portion 16b provided in each fin 13a is arranged in a straight line along the axial direction of the rotation shaft 63. Has been. On the other hand, in the vicinity of the outer periphery of the rotating plate 61, a circular opening 61a penetrating the rotating plate 61 is formed. When the rotating plate 61 rotates around the rotation shaft 63, the opening 61a opens and closes the communicating portion 16b by changing the position of the fin with respect to the communicating portion 16b according to the rotation angle. That is, the communication part 16b is opened when the opening 61a coincides with the communication part 16b. On the other hand, when the opening 61 a is at a position other than the communication portion 16 b due to the rotation angle of the rotation plate 61, the communication portion 16 b is closed by the rotation plate 61.

  A rotation drive mechanism 62 for rotating the rotation shaft 63 is provided. The rotation drive mechanism 62 is configured by a stepping motor or the like that can be rotated while controlling the rotation angle of the rotation shaft 63, and the rotation drive mechanism 62 is operated by a command from the ECU 50. The rotary plate 61, the rotary shaft 63, and the rotation drive mechanism 62 constitute the opening / closing means 60 that switches the open / closed state of each communicating portion 16b.

  In FIG. 3B, only one communicating portion 16b provided in one fin 13a and one opening 61a provided in one rotating plate 61 corresponding thereto are provided, but one fin 13a. It is also possible to provide a plurality of communicating portions 16 b in the first rotary plate 61 or a plurality of openings 61 a in one rotary plate 61. In addition, a plurality of communication portions 16b of one fin 13a and a corresponding opening portion 61a of one rotary plate 61 are provided, so that the plurality of opening portions 61a coincide with the plurality of communication portions 16b at the same time. If comprised, it will become possible to ensure a wide cross-sectional area of the communication portion 16b communicating between the divided chambers 16a.

  4A and 4B are diagrams showing a detailed configuration of the rotating plate 61, in which FIG. 4A is a view taken along the line BB in FIG. 3, and FIGS. 4B and 4C are cross-sectional views taken along the line CC in FIG. It is. As shown in the figure, the opening 61 a of the rotating plate 61 is formed as an inclined surface 61 b whose inner peripheral end surface is inclined with respect to the plate surface (front surface) 61 c of the rotating plate 61. That is, in the configuration example shown in FIG. 4B, the inner peripheral end surface of the opening 61a is an inclined surface 61b that gradually increases in diameter from the center in the direction of the rotating shaft 63 toward both sides, and the center of the inner peripheral end surface is It projects at an acute angle toward the center of the opening 61a. 4C, the inner peripheral end surface of the opening 61a is an inclined surface 61b that gradually increases in diameter from one end toward the other end in the direction of the rotating shaft 63, and one end of the inner peripheral end surface. Protrudes at an acute angle toward the center of the opening 61a. In the opening / closing means 60 of the present embodiment, it is necessary to rotate the rotating plate 61 in a state where the heat storage material 20 of the divided chamber 16a enters the opening 61a of the rotating plate 61. However, the inner peripheral end surface of the opening 61a is the above-mentioned. When the rotating surface 61 rotates, the heat storage material 20 in the opening 61a moves smoothly along the inclined surface 61b. Therefore, the heat storage material 20 in the opening 61a. Thus, the rotation of the rotating plate 61 is not hindered. Therefore, since the resistance received from the heat storage material 20 can be reduced, the rotating plate 61 can be smoothly rotated.

  FIG. 5 is a diagram schematically illustrating an example of an arrangement configuration of the communication portion 16 b that communicates with the plurality of division chambers 16 a and the opening 61 a provided in the rotating plate 61. In the following description, the terms “upper, lower, left, and right” refer to the upper, lower, left, and right in each of the arrow views shown in FIGS. In addition, here, for convenience of explanation, the division chamber 16a of the heat storage device 10 is only the four chambers of the P chamber, the Q chamber, the R chamber, and the S chamber, and the rotating plate 61 is installed in each of the P chamber, the Q chamber, and the R chamber. Shows the case. As shown in the direction of arrows I-I in FIG. 5, the communication portions 16 b that connect the P chamber and the Q chamber are arranged at 90 ° intervals at three locations on the upper and lower sides and the right side around the rotation shaft 63. Moreover, the communication part 16b which connects Q room and R room is arrange | positioned by 90 degree space | intervals at two places of the upper side and the right side around the rotating shaft 63, as shown to the II-II arrow of FIG. Moreover, the communication part 16b which connects R room and S room is arrange | positioned only at one place of upper side, as shown to the III-III arrow of FIG. On the other hand, there are an opening 61a provided in the rotating plate 61 installed in the P chamber, an opening 61a provided in the rotating plate 61 installed in the Q chamber, and an opening 61a provided in the rotating plate 61 installed in the R chamber. In each case, only one is formed at the same phase position in the rotation direction of the rotating plate 61.

  FIG. 6 is a diagram for explaining an open / closed state of the communication portion 16b in the arrangement configuration shown in FIG. The opening and closing of the communication portion 16b accompanying the rotation of the rotating plate 61 will be described with reference to FIG. In FIG. 6 and FIG. 8 below, the opening 61a that matches the communication portion 16b and opens the communication portion 16b is shown in white, and the opening 61a that does not match the communication portion 16b is hatched. Show. First, as shown in FIG. 6A, when the opening 61a of each rotary plate 61 is located on the left side, the positions of the opening 61a and the communication portion 16b are not the same in any communication portion 16b. Instead, all of the three communication portions 16b are closed. Accordingly, the P room, the Q room, the R room, and the S room are separated from each other, and each room is independent. From this state, when the three rotary plates 61 rotate together and the opening 61a is positioned on the lower side as shown in FIG. 6B, the communication portion 16b between the P chamber and the Q chamber. Is opened, and the communication portion 16b between the Q chamber and the R chamber and the communication portion 16b between the R chamber and the S chamber are both closed. Thereby, the P room and the Q room communicate with each other, and the R room and the S room are independent from each other. When the rotating plate 61 further rotates from that position and the opening 61a of each rotating plate 61 is located on the right side in the drawing as shown in FIG. 6 (c), it is between the P chamber and the Q chamber. The communication portion 16b and the communication portion 16b between the Q chamber and the R chamber are opened, and the communication portion 16b between the R chamber and the S chamber is closed. Thereby, the P chamber, the Q chamber, and the R chamber communicate with each other, and the S chamber becomes independent. When the rotating plate 61 further rotates from that position and the opening 61a of each rotating plate 61 is positioned on the upper side as shown in FIG. 6 (d), the communicating portion 16b between the P chamber and the Q chamber, The communication portion 16b between the Q chamber and the R chamber and the communication portion 16b between the R chamber and the S chamber are opened. Thus, all of the P room, the Q room, the R room, and the S room are in communication with each other.

  FIG. 7 is a diagram schematically illustrating another arrangement configuration example of the communication portion 16b and the opening portion 61a. In the example shown in FIG. 5, all of the communication portion 16b that communicates the P and Q chambers, the communication portion 16b that communicates the Q and R chambers, and the communication portion 16b that communicates the R and S chambers are all shown in FIG. As shown in the direction of arrows I-I, II-II, and III-III, it is provided only at one upper position on the outer periphery of the rotating shaft 63. On the other hand, the openings 61a of the rotating plate 61 installed in the P chamber are arranged at 90 ° intervals at three positions on the right and left and the lower side, as shown by arrows IV-IV. In addition, the openings 61a of the rotating plate 61 installed in the Q chamber are arranged at two 90 ° intervals on the right side and the lower side, as shown by arrows VV. Further, the opening 61a of the rotating plate 61 installed in the R chamber is disposed only at one place on the right side as shown by the arrow VI-VI.

  FIG. 8 is a diagram for explaining an open / closed state of the communication portion 16b in the arrangement configuration shown in FIG. The opening and closing of the communication portion 16b accompanying the rotation of the rotating plate 61 will be described with reference to FIG. First, as shown in FIG. 8 (a), the three openings 61a of the rotating plate 61 installed in the P chamber are located on the left and right and the lower side, and the two openings of the rotating plate 61 installed in the Q chamber. When 61a is located on the right side and the lower side, and one opening 61a of the rotating plate 61 installed in the R chamber is located on the right side, the opening 61a and the communicating portion 16b do not coincide with each other in any communicating portion 16b. All of the three communication portions 16b are closed. Accordingly, the P room, the Q room, the R room, and the S room are separated from each other, and each room is independent. From this state, when each rotating plate 61 rotates 90 degrees clockwise in the same figure, and enters the state shown in (b), the communication portion 16b between the P chamber and the Q chamber is opened, and the Q chamber and the R chamber are opened. The communication portion 16b between the chambers and the communication portion 16b between the R chamber and the S chamber are all closed. Thereby, the P room and the Q room communicate with each other, and the R room and the S room become independent from each other. When the rotating plate 61 further rotates 90 degrees clockwise from that position and enters the state shown in (c), the communicating portion 16b between the P chamber and the Q chamber and the communicating portion between the Q chamber and the R chamber 16b is opened, and the communication portion 16b between the R chamber and the S chamber is closed. As a result, the P chamber, the Q chamber, and the R chamber communicate with each other, and the S chamber becomes independent. When the rotating plate 61 further rotates 90 degrees clockwise from that position and enters the state shown in (d), the communicating portion 16b between the P chamber and the Q chamber and the communicating portion between the Q chamber and the R chamber 16b and the communication portion 16b between the R chamber and the S chamber are opened. Thus, all of the P room, the Q room, the R room, and the S room are in communication with each other.

  Returning to FIG. 3, in the heat storage device 10, the heat storage material accommodation chamber 16 and the hydraulic oil circulation chamber 17 are disposed adjacent to each other, and the hydraulic oil circulation chamber 17 and the cooling water circulation chamber 15 are disposed adjacent to each other. Yes. Therefore, heat can be directly exchanged between the heat storage material 20 in the heat storage material accommodation chamber 16 and the hydraulic oil in the hydraulic oil circulation chamber 17, and the hydraulic oil in the hydraulic oil circulation chamber 17 and the cooling of the cooling water circulation chamber 15 can be cooled. Direct heat exchange with water. In addition, heat can be indirectly exchanged between the cooling water in the cooling water circulation chamber 15 and the heat storage material 20 in the heat storage material accommodation chamber 16 via the hydraulic oil in the hydraulic oil circulation chamber 17.

  The casing 11 is made of a material having durability such as rust prevention against cooling water and good heat insulation, for example, a metal material such as copper, aluminum, and stainless steel. Although not shown in the figure, a vacuum heat insulating layer may be formed inside the housing 11 in order to improve heat insulation. In addition, the intermediate member 12 and the partition member 13 are preferably made of a metal material having durability against cooling water, hydraulic oil, and the heat storage material 20 and having relatively high thermal conductivity, such as stainless steel.

  The heat storage material 20 is a latent heat storage material capable of storing heat in a supercooled state, and has a property that it remains in a liquid state and does not solidify even when it becomes below the freezing point. Examples of such a heat storage material 20 include a heat storage material made of sodium acetate hydrate. Sodium acetate hydrate generates heat when returning to the equilibrium state and solidifies by releasing the supercooled state by the releasing means described later, and can heat other medium having a low temperature. Therefore, the heat storage material 20 stores the heat by heat supply from a heat transfer medium such as hydraulic oil or cooling water, and changes (melts) from the solid phase to the liquid phase. It becomes a supercooled state with keeping. On the other hand, the release of the supercooled state by the release means releases heat storage and changes (solidifies) from the liquid phase to the solid phase.

  Furthermore, in this embodiment, it is necessary to smoothly rotate the rotating plate 61 of the divided chamber 16a in a state where the heat storage material 20 has changed from the liquid phase to the solid phase due to the release of the supercooled state. Therefore, for example, by applying a treatment such as adding a gelling agent or water to the heat storage material 20 made of sodium acetate hydrate, the heat storage material 20 has a predetermined fluidity even after the phase change to a solid phase. It is desirable to do so. The predetermined fluidity mentioned here specifically refers to a turbid liquid state (suspension) in which solid components are mixed in the liquid in the solid state heat storage material 20, and in the liquid. A state in which solid matter is floating. If the heat storage material 20 is in such a state when the phase is changed to a solid phase, the rotating plate 61 in contact with the heat storage material 20 can be smoothly rotated.

  In the heat storage material 20 of the heat storage material accommodation chamber 16, release means (hereinafter referred to as a nucleation device) 25 for releasing the supercooled state of the heat storage material 20 is installed. FIG. 9 is a schematic side view showing the nucleation device 25. The nucleation device 25 includes a circular flat metal spring member 26 installed in the heat storage material 20 and a solenoid 27 that strikes the metal spring member 26. The solenoid 27 operates according to a command from the ECU 50. In the state shown in FIG. 5A, when the central portion 26a is pressed by the solenoid 27 in the state shown in FIG. 5A, the central portion 26a is reversed as shown in FIG. ing. Thereby, a nucleus is produced | generated (nucleation) in the thermal storage material 20, the supercooled state of the thermal storage material 20 is cancelled | released, and solidification starts. The release means may be any means as long as it can generate nuclei in the heat storage material 20, and in addition to the above, for example, a means for applying metal friction or voltage application in the heat storage material 20. There may be.

Here, sodium acetate hydrate was given as a representative example of a latent heat storage material capable of storing heat in a supercooled state, but in addition, hydrate salt compounds (chemical formula Mx · nH ₂ O (n: integer)) And examples thereof include Na ₂ SO ₄ .10H ₂ O and CaCl ₂ .6H ₂ O.

  FIG. 10 is a graph showing a time chart of the operation mode in the warm-up system 1 configured as described above. As shown in the figure, the operation mode of the warm-up system 1 is switched to four stages from mode 0 to mode 3. Mode 0 is a mode during which the engine 30 is stopped. Mode 1 is a mode from when the IG switch 56 is turned on and the engine 30 is started until the coolant temperature reaches a predetermined temperature. During this period, the hydraulic oil of the automatic transmission 40 is heated by the heat storage material 20. . Further, the engine 30 self-warms. Mode 2 is a mode until it is determined that the warm-up of the automatic transmission 40 is completed because the oil temperature of the hydraulic oil has reached the predetermined temperature after the coolant temperature has reached the predetermined temperature. During this time, the hydraulic oil of the automatic transmission 40 is heated by the cooling water of the engine 30. Further, the coolant of the engine 30 is controlled (DUTY control) so as to maintain a predetermined temperature range by opening / closing control of the electronically controlled thermostat valve 37. Mode 3 is a mode after it is determined that the automatic transmission 40 has been warmed up. During this time, the hydraulic oil of the automatic transmission 40 is cooled by the cooling water of the engine 30. Further, the cooling water of the engine 30 is controlled so as to maintain a predetermined temperature range by opening / closing control of the electronically controlled thermostat valve 37 as in the mode 2.

  FIG. 11 is a main flow showing a control procedure of the warm-up system 1. In this control procedure, first, a mode switching subroutine, which will be described later, is executed (step ST1). Based on the result, it is determined whether or not the mode is 0 (step ST2). If it is mode 0 (Y), the mode 0 subroutine is executed (step ST3). If it is not mode 0 (N), it is determined whether or not it is mode 1 (step ST4). As a result, if it is mode 1 (Y), the mode 1 subroutine is executed (step ST5). If it is not mode 1 (N), it is determined whether it is mode 2 (step ST6). As a result, if it is mode 2 (Y), the mode 2 subroutine is executed (step ST7), and if it is not mode 2 (N), the mode 3 subroutine is executed (step ST8).

  FIG. 12 is a flowchart for explaining the mode switching procedure. In mode switching, it is first determined whether or not the IG switch 56 is on (step ST10). As a result, if the IG switch 56 is not on (N), mode 0 is set (step ST11). If IG switch 56 is on (Y), it is determined whether or not mode 2 or higher (step ST12). If it is not mode 2 or higher (N), it is determined whether or not cooling water temperature TW is lower than # TW1L. (Step ST13) If cooling water temperature TW is lower than # TW1L (Y), mode 1 is set (step ST14). A specific example of # TW1L is 100 ° C. Further, if the mode is 2 or higher in the previous step ST12 (Y), it is subsequently determined whether or not the mode is 2 (step ST15). If the mode is the mode 2 (Y) or the previous step ST13, the cooling water temperature is determined. When TW is equal to or higher than # TW1L (N), it is determined whether or not the hydraulic oil temperature TATF is lower than # TATF1L (step ST16). A specific example of # TATF1L is 100 ° C. As a result, if hydraulic oil temperature TATF is lower than # TATF1L (Y), mode 2 is set (step ST17), and if hydraulic oil temperature TATF is greater than or equal to # TATF1L (N), mode 3 is set (step ST18). ). If the mode is not mode 2 (N) in the previous step ST15, mode 3 is set (step ST18).

  FIG. 13 is a flowchart for explaining the procedure of the mode 0. In mode 0, first, it is determined whether or not a warm-up signal is input (step ST0-1). As a result, when no warm-up signal is input (N), the nucleation device 25 is turned off (step ST0-2). On the other hand, when the warm-up signal is input (Y), it is determined whether or not the coolant temperature TW is lower than # TW3 (step ST0-3). A specific example of # TW3 is 60 ° C. As a result, if the cooling water temperature TW is equal to or higher than # TW3 (N), the nucleation device 25 is turned off (step ST0-2). That is, when the coolant temperature is sufficiently high at the time of starting, it is determined that the engine 30 and the automatic transmission 40 need not be warmed up by the heat storage device 10, and the heat storage material 20 is not nucleated without self-heating. Do not warm up. On the other hand, if cooling water temperature TW is lower than # TW3 (Y), it is determined whether or not nucleation device 25 is on (step ST0-4). As a result, if the nucleation device 25 is off (N), the nucleation device 25 is turned on (step ST0-5).

  Here, when the nucleation device 25 installed in the heat storage material accommodation chamber 16 is turned on, each rotary plate 61 is set to an angular position where each communication portion 16b is opened by the rotation drive mechanism 62 in advance, and a plurality of divided chambers are provided. 16a is made to communicate. As a result, the heat storage material 20 in each divided chamber 16a is integrated through the communication portion 16b, and therefore, by the nucleating operation of the nucleating device 25, one divided chamber 16a in which the nucleating device 25 is disposed. The solidification of the heat storage material 20 that occurs first in the interior sequentially propagates to the heat storage material 20 in the other adjacent divided chamber 16a and eventually diffuses throughout the heat storage material 20 in the heat storage material accommodation chamber 16. Therefore, only the nucleation operation by one nucleation device 25 can solidify the entire heat storage material 20 of the plurality of divided chambers 16a and release the heat storage.

  On the other hand, if the nucleation device 25 is turned on in the previous step ST0-4 (Y), it is determined whether or not it is within a predetermined time after the nucleation device 25 is turned on (step ST0-6). As a result, if it is not within the predetermined time (N), that is, if the predetermined time or more has passed since the nucleation device 25 is turned on, the nucleation device 25 is turned off (step ST0-2). In this mode 0, the switching valve 33 is turned off (step ST0-7), and the electronically controlled thermostat valve 37 is turned off (step ST0-8). Thereafter, the mode 0 procedure is terminated and the process returns to the main flow.

  FIG. 14 is a flowchart for explaining the procedure of mode 1. In mode 1, it is first determined whether or not the coolant temperature TW is lower than # TW3 (step ST1-1). As a result, if the cooling water temperature TW is # TW3 or more (N), the nucleation device 25 is turned off (step ST1-2). That is, when the cooling water temperature is sufficiently high at the time of start-up, it is determined that the engine 30 and the automatic transmission 40 are not required to be warmed up by the heat storage device 10, and the cooling water by the heat storage material 20 is not nucleated without nucleating the heat storage material 20. Do not heat the hydraulic oil. On the other hand, if cooling water temperature TW is lower than # TW3 (Y), it is determined whether or not nucleation device 25 is on (step ST1-3). As a result, if the nucleation device 25 is not on (N), the nucleation device 25 is turned on (step ST1-4). Also in this case, when the nucleation device 25 installed in the heat storage material accommodation chamber 16 is turned on, the rotation plates 61 are set in advance to the angular positions where the communication portions 16b are opened, and the plurality of division chambers 16a are communicated.

  On the other hand, if the nucleation device 25 is turned on in the previous step ST1-3 (Y), it is determined whether or not it is within a predetermined time after the nucleation device 25 is turned on (step ST1-5). As a result, if it is not within the predetermined time (N), that is, if the predetermined time or more has passed since the nucleation device 25 is turned on, the nucleation device 25 is turned off (step ST1-2). Subsequently, it is determined whether or not the outside air temperature is equal to or higher than a predetermined temperature and the defroster switch 55 is off (step ST1-6). As a result, when the outside air temperature is equal to or lower than the predetermined temperature or the defroster switch 55 is on (N), the switching valve 33 is turned off (step ST1-7), so that the cooling water discharged from the heat storage device 10 is supplied to the heater core 45. To distribute. That is, in this case, the vehicle interior heating by the heat storage device 10 is also performed while the automatic transmission 40 is warmed up by the heat storage device 10. On the other hand, when the outside air temperature is equal to or higher than the predetermined temperature and the defroster switch 55 is off (Y), the switching valve 33 is turned on (step ST1-8), and the cooling water discharged from the heat storage device 10 is supplied to the heater core. 45 is not distributed. That is, in this case, warming up of the automatic transmission 40 by the heat storage device 10 is preferentially performed, and interior heating is not performed. Further, in mode 1, the electronically controlled thermostat valve 37 is turned on (step ST1-9), and the cooling water is not circulated to the radiator 47, so that the cooling water is warmed up early. Thereafter, the mode 1 procedure is terminated and the process returns to the main flow.

  FIG. 15 is a flowchart for explaining the procedure of mode 2. In mode 2, the nucleation device 25 is turned off (step ST2-1). Further, by turning off the switching valve 33 (step ST2-2), the cooling water from the heat storage device 10 is circulated to the heater core 45. Then, it is determined whether or not the electronic control thermostat valve 37 is on (step ST2-3). If the result is ON (Y), it is determined whether or not the coolant temperature TW is lower than # TW1H (step ST2-4). A specific example of # TW1H is 105 ° C. As a result, when the cooling water temperature TW is equal to or higher than # TW1H (N), the electronic control thermostat valve 37 is turned off (step ST2-6), thereby circulating the cooling water to the radiator. On the other hand, when the cooling water temperature TW is lower than # TW1H (Y), the electronically controlled thermostat valve 37 is kept on (step ST2-7), and the cooling water is not circulated to the radiator 47. If the electronically controlled thermostat valve 37 is off (N) in the previous step ST2-3, it is determined whether or not the coolant temperature TW is higher than # TW1L (step ST2-5). As a result, if the coolant temperature TW is higher than # TW1L (Y), the electronically controlled thermostat valve 37 is kept off (step ST2-6), and if the coolant temperature TW is # TW1L or less (N), the electronically controlled thermostat. The valve 37 is turned on (step ST2-7). Then return to the start and repeat the above procedure. That is, in mode 2, when the cooling water temperature TW rises to # TW1H or higher, cooling is performed by the radiator 47, and when the cooling water temperature TW decreases to # TW1L or lower, cooling by the radiator 47 is stopped. Thereby, as shown in FIG. 10, the cooling water temperature TW is controlled to be always within the range between # TW1L and # TW1H.

  FIG. 16 is a flowchart for explaining the procedure of mode 3. In mode 3, first, the nucleation device 25 is off (step ST3-1). Moreover, the switching valve 33 is off (step ST3-2), and the cooling water discharged from the heat storage device 10 is flowing through the heater core 45. Then, it is determined whether or not the hydraulic oil temperature TATF is lower than # TATF1H (step ST3-3). A specific example of # TATF1H is 110 ° C. As a result, if the hydraulic oil temperature TATF is lower than # TATF1H (Y), it is determined whether or not the electronically controlled thermostat valve 37 is on (step ST3-4). If it is on (Y), it is determined whether or not the coolant temperature TW is lower than # TW1H (step ST3-5). If cooling water temperature TW is equal to or higher than # TW1H (N), electronic control thermostat valve 37 is turned off (step ST3-7). If cooling water temperature TW is lower than # TW1L (Y), electronic control thermostat valve 37 is turned on. (Step ST3-8). On the other hand, if the electronically controlled thermostat valve 37 is not on in the previous step ST3-4 (N), it is determined whether or not the coolant temperature TW is higher than # TW1L (step ST3-6). As a result, if the cooling water temperature TW is higher than # TW1L (Y), the electronic control thermostat valve 37 is turned off (step ST3-7). If the cooling water temperature TW is # TW1L or less (N), the electronic control thermostat valve 37 is turned off. Is turned on (step ST3-8). That is, when the hydraulic oil temperature of the automatic transmission 40 is in the target range (TATF <# TATF1H: 110 ° C.), it is not necessary to lower the cooling water temperature any more, so the cooling water temperature is a so-called fuel consumption target value that gives priority to fuel consumption. (# TW1L: 100 ° C. <TW <# TW1H: 105 ° C.)

  On the other hand, if the hydraulic oil temperature TATF is greater than or equal to # TATF1H in Step ST3-3 (N), it is determined whether or not the electronically controlled thermostat valve 37 is already on (Step ST3-9). If so (Y), it is determined whether or not the coolant temperature TW is lower than # TW2H (step ST3-10). A specific example of # TW2H is 85 ° C. When cooling water temperature TW is equal to or higher than # TW2H (N), electronic control thermostat valve 37 is turned off (step ST3-12). When cooling water temperature TW is lower than # TW2H (Y), electronic control thermostat valve 37 is turned off. Turns on (step ST3-8). On the other hand, if the electronically controlled thermostat valve 37 is not on in the previous step ST3-9 (N), it is determined whether or not the coolant temperature TW is higher than # TW2L (step ST3-11). A specific example of # TW2L is 80 ° C. As a result, if the cooling water temperature TW is higher than # TW2L (Y), the electronic control thermostat valve 37 is turned off (step ST3-12). If the cooling water temperature TW is # TW2L or less (N), the electronic control thermostat valve 37 is turned off. Is turned on (step ST3-8). In other words, when the hydraulic oil temperature of the automatic transmission 40 is too high compared to the target range (TATF <# TATF1H: 110 ° C.), the cooling water temperature of the engine 30 needs to be kept low. Control is performed so that the temperature is given priority to cooling (# TW2L: 80 ° C. <TW <# TW2H: 85 ° C.).

  Here, when the heat storage material 20 in the heat storage material storage chamber 16 is in a solid phase (heat release completed) state due to the release of the supercooled state (nucleation) in mode 1, the operation is performed in mode 2 or mode 3. Heat is stored in the heat storage material 20 by supplying heat from the hydraulic oil flowing through the oil distribution chamber 17. In this case, by adjusting the rotation direction angle of the rotating plate 61 by the rotation driving mechanism 62, each communicating portion 16b is closed by each rotating plate 61 so that each divided chamber 16a is partitioned. By doing so, even when the total capacity of the heat storage material 20 in the heat storage material storage chamber 16 is large, it becomes possible to perform heat storage for each heat storage material 20 divided and stored in each divided chamber 16a. It becomes possible to complete the heat storage to the heat storage material 20 efficiently.

As described above, according to the vehicle warm-up system 1 of the present embodiment, when the nucleation device 25 nucleates (releases the supercooled state of the heat storage material 20), the communication portion 16b is opened by the opening / closing means 60. A plurality of divided chambers 16a are communicated. Thereby, since the heat storage material 20 in the plurality of division chambers 16a can be integrated, the nucleation device 25 does not need to be provided in each division chamber 16a, and only if it is provided in any one of the division chambers 16a. It ’s enough. Therefore, since the number of installation of the nucleation device 25 can be reduced, the number of parts of the heat storage device 10 can be reduced, and the structure of the heat storage device 10 can be simplified, downsized, and reduced in weight.
Further, when the heat storage material 20 stores heat, the opening / closing means 60 closes the communication portion 16b so that the heat storage material accommodation chamber 16 is divided into a plurality of divided chambers 16a. Thereby, even when the total capacity of the heat storage material 20 in the heat storage material accommodation chamber 16 is large, heat storage can be performed for each heat storage material 20 divided and accommodated in each divided chamber 16a, so that the heat storage of the heat storage material 20 is efficient. It can be completed well.
Accordingly, while simplifying the structure of the heat storage device 10, heat storage and heat dissipation of the heat storage material 20 can be efficiently performed in a short time, and the automatic transmission 40 and the engine 30 can be warmed up quickly, Immediate heating can be performed effectively.

  Further, in the warming-up system 1 for a vehicle, as the opening / closing means 60 for switching the open / close state of the communication portion 16b, a rotating plate 61 having an opening 61a disposed in the divided chamber 16a facing the communication portion 16b, A rotation drive mechanism 62 that rotates the rotation plate 61 along its plate surface 61c, and the rotation of the rotation plate 61 by the rotation drive mechanism 62 changes the position of the opening 61a with respect to the communication portion 16b. The open / close state of the part 16b is switched. According to this configuration, since the rotating plate 61 in the heat storage material 20 is rotated along the plate surface 61c, the rotation plate 61 can be smoothly rotated with the resistance received from the heat storage material 20 reduced as much as possible, and the communication portion 16b. Switching between opening and closing can be easily performed. Therefore, even in the heat storage material 20 in which the viscosity increases and the fluidity decreases after releasing heat due to the release of supercooling (nucleation), the rotating plate 61 can be reliably rotated with a small driving force to open and close the communicating portion 16b. The mechanism 62 can be downsized and the configuration can be simplified, which leads to downsizing and cost reduction of the heat storage device 10.

  In the present embodiment, the inner peripheral end surface of the opening 61 a provided in the rotating plate 61 is an inclined surface 61 b that is inclined with respect to the plate surface 61 c of the rotating plate 61. In this regard, in the opening / closing means 60 of the present embodiment, it is necessary to rotate the rotating plate 61 with the heat storage material 20 in the divided chamber 16a entering the opening 61a of the rotating plate 61, but the inner periphery of the opening 61a Since the end surface is the inclined surface 61b, when the rotating plate 61 rotates, the heat storage material 20 in the opening 61a moves smoothly along the inner peripheral end surface of the opening 61a, so the heat storage material in the opening 61a. 20, the rotation of the rotating plate 61 is not hindered. Therefore, it is possible to smoothly rotate the rotating plate 61 in a state where the resistance received from the heat storage material 20 is further reduced.

  Further, the vehicle warm-up system 1 of the present embodiment includes a plurality of communication portions 16b that communicate with the plurality of divided chambers 16a, and the opening / closing means 60 is disposed corresponding to the plurality of communication portions 16b. A plurality of rotating plates 61 and a rotating shaft 63 connecting the plurality of rotating plates 61 are provided, and the plurality of rotating plates 61 are configured to rotate integrally by the rotation of the rotating shaft 63 by the rotation drive mechanism 62. . By adopting such a mechanism, a mechanism capable of simultaneously opening and closing the plurality of communicating portions 16b communicating with the plurality of divided chambers 16a is realized with a simple configuration.

  In the configuration example shown in FIGS. 5 and 7, the opening 61 a of each rotary plate 61 or the communication portion 16 b corresponding thereto is provided at a plurality of positions along the rotation direction of the rotary plate 61. Accordingly, the number of communication portions 16b to be opened, that is, the number of divided chambers 16a to be communicated, can be varied according to the rotation angle of the rotating plate 61, so that heat storage and heat dissipation of the heat storage material 20 can be performed efficiently. Thus, it is possible to promote efficient use of heat energy generated in the vehicle.

  5 and 7, at least one of the opening 61a provided in each of the plurality of rotating plates 61 or the communication portion 16b corresponding to the opening 61a is located at a position different from each other in the rotation direction of the rotating plate 61. By arranging, the number of communication portions 16b opened by matching of the opening portions 61a can be arbitrarily set according to the rotation angle of the rotating plate 61. According to this, it is possible to arbitrarily set the number of the divided chambers 16a that communicate with each other only by changing the angle of the rotating plate 61 in the rotation direction. Therefore, it is possible to efficiently store and release heat of the heat storage material 20 while the configuration of the opening / closing means 60 is simple, and it is possible to promote efficient use of heat energy generated in the vehicle.

  Moreover, in the opening / closing means 60 of the present embodiment, as shown in FIG. 4A, the rotating plate 61 rotates in the heat storage material 20, so that the plate surface 61 c of the rotating plate 61 in contact with the heat storage material 20 By moving relative to the heat storage material 20, the heat storage material 20 in that portion is stimulated, and nuclei are generated (nucleated) in the heat storage material 20. If this is utilized, the heat storage material 20 can be nucleated simply by rotating the rotating plate 61 and opening and closing the communicating portion 16b, so that the supercooled state of the heat storage material 20 can be easily released. Become. In particular, in this embodiment, the heat storage material 20 can be efficiently radiated by the opening / closing means 60 having a simple configuration in which the rotating plate 61 is rotated via the rotating shaft 63.

  Moreover, if the nucleation operation | movement accompanying rotation of the rotating plate 61 is utilized, since the thermal storage material 20 can be nucleated simultaneously in the some division chamber 16a, the supercooling of the thermal storage material 20 accommodated in each division chamber 16a is carried out. It is possible to simultaneously release the state with one operation. Therefore, the heat release time of the heat storage material 20 can be shortened, and warm-up using heat storage can be performed quickly. In addition, when the heat storage material 20 accommodated in each divided chamber 16a can be sufficiently nucleated only by the nucleation operation by the rotation of the rotating plate 61 as described above, the installation of the nucleation device 25 is omitted. Is also possible.

[Second Embodiment]
Next, the warming-up system for vehicles concerning 2nd Embodiment of this invention is demonstrated. In the description of the second embodiment and the corresponding drawings, the same or corresponding components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted below. Further, matters other than those described below and matters other than those illustrated are the same as those in the first embodiment.

  FIG. 17 is a diagram illustrating a detailed configuration of the heat storage device 10-2 included in the vehicle warm-up system according to the second embodiment, and is a cross-sectional view taken along the line AA in FIG. In the heat storage device 10-2 of the present embodiment, a cover member 65 that partitions the rotary plate 61 and the heat storage material 20 is installed outside the rotary plate 61 in the divided chamber 16a. The cover member 65 is formed on the surface of the fin 13a on the rotating plate 61 side, and surrounds the end surface on the rotating outer periphery side of the rotating plate 61 and the plate surface (surface on the dividing chamber 16a side) 61c of the rotating plate 61. Is formed. The cover member 65 is provided with a slit portion 65a for allowing the heat storage material 20 to flow through the opening 61a. The slit portion 65 is provided at a position facing the opening 61 a when it coincides with the communication portion 16 b and is formed in a slit shape that penetrates the cover member 65. In addition, a passage 65b communicating with the hydraulic oil circulation chamber 17 (gap 13b) provided outside the fin 13a is formed inside the cover member 65, and the passage 65b includes an operation from the hydraulic oil circulation chamber 17. Oil has come to circulate.

  In this embodiment, since the contact area between the heat storage material 20 and the rotary plate 61 can be reduced by installing the cover member 65 that partitions the rotary plate 61 and the heat storage material 20, the rotary plate 61 rotates. In this case, the adhesion resistance generated by the heat storage material 20 can be reduced. Therefore, regardless of the state of the heat storage material 20, the rotating plate 61 can be rotated more smoothly.

  Further, a passage 65 b communicating with the hydraulic oil circulation chamber 17 is formed in the cover member 65. Thus, heat exchange can be performed between the heat storage material 20 in contact with the cover member 65 and the hydraulic oil (heat transfer medium) flowing through the passage 65b of the cover member 65, so that the hydraulic oil is heated by the heat storage material 20 It becomes possible to improve the efficiency of the heat storage to the heat storage material 20 by a hydraulic fluid.

[Third Embodiment]
FIG. 18 is a schematic diagram illustrating a configuration example of a vehicle warm-up system 1-3 according to the third embodiment. The heat storage device 10-3 included in the warm-up system 1-3 includes a lubricating oil distribution chamber 14 that distributes the lubricating oil of the engine 30 instead of the hydraulic oil distribution chamber 17 included in the heat storage device 10 of the first embodiment. ing. Accordingly, the lubricating oil is circulated between the engine 30 and the heat storage device 10-3 instead of the hydraulic oil circulation path 41 that circulated the hydraulic oil between the automatic transmission 40 and the heat storage device 10. A lubricating oil circulation path 36 is provided. A lubricating oil pump (electric pump) 39 for circulating the lubricating oil is installed in the lubricating oil circulation path 36.

  In the heat storage device 10-3, the heat storage material accommodation chamber 16 (partition member 13) is installed in the lubricating oil circulation chamber 14. Therefore, the heat storage material 20 accommodated in the heat storage material accommodation chamber 16 is stored with heat supplied from the lubricating oil flowing through the lubricating oil circulation chamber 14. Further, the heat release accompanying the release of the supercooled state by the nucleation device 25 is mainly supplied to the lubricating oil flowing through the lubricating oil circulation chamber 14.

[Fourth Embodiment]
FIG. 19 is a diagram illustrating a detailed configuration of the heat storage device 10-4 included in the vehicle warm-up system according to the fourth embodiment, in which (a) is an exploded perspective view and (b) is an AA view of (a). It is arrow sectional drawing. The heat storage device 10-4 of the present embodiment has a double structure in which the intermediate member 12 included in the heat storage device 10 of the first embodiment is omitted and the partition member 13 is installed inside the housing 11. In this heat storage device 10-4, a cooling water circulation chamber 15 through which the cooling water of the engine 30 flows is between the housing 11 and the partition member 13, and the heat storage material 20 is sealed inside the partition member 13. It becomes the heat storage material accommodation chamber 16 filled with. Also in this embodiment, the heat storage material accommodation chamber 16 is divided into a plurality of divided chambers 16a, and an opening / closing means 60 for opening and closing the communication portion 16b communicating with each divided chamber 16a is provided. In the present embodiment, the heat storage material 20 accommodated in the heat storage material accommodation chamber 16 is stored with heat supplied from the cooling water flowing through the cooling water circulation chamber 15. Further, the heat radiation accompanying the release of the supercooled state by the nucleation device 25 is supplied mainly to the cooling water flowing through the cooling water circulation chamber 15.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. For example, the specific number, shape, and arrangement of the heat storage material accommodation chambers 16 included in the heat storage device 10 (10-2 to 10-4), that is, the specific numbers of the divided chambers 16a, the communication portions 16b, and the rotating plates 61 are provided. The shape, the arrangement, and the arrangement are only examples, and the division chamber 16a, the communication portion 16b, and the rotating plate 61 can have other numbers, shapes, and arrangements. Further, the specific number, arrangement, and shape of the openings 61a and the communication portions 16b provided in the rotating plate 61 are not limited to those shown in the above embodiment.

It is the schematic which shows the structural example of the warming-up system for vehicles concerning 1st Embodiment of this invention. It is a figure which shows the structural example of an electronically controlled thermostat valve. It is a figure which shows the structural example of a thermal storage apparatus, (a) is a disassembled perspective view, (b) is AA arrow sectional drawing of (a). It is a figure for demonstrating operation | movement of an opening / closing means. It is a figure which shows typically an example of arrangement | positioning structure of the communicating part which connects a division chamber, and the opening part of a rotating plate. It is a figure for demonstrating the opening-and-closing state of the communicating part in the arrangement configuration shown in FIG. It is a figure which shows typically the other arrangement configuration example of a communication part and an opening part. It is a figure for demonstrating the opening-and-closing state of the communication part in the arrangement configuration shown in FIG. It is a figure which shows the structural example of a nucleation apparatus. It is a graph which shows the time chart of the operation mode of a warming-up system. It is a main flow which shows the control procedure of a warming-up system. It is a flowchart for demonstrating the operation mode switching procedure. It is a flowchart for demonstrating the procedure of mode 0. FIG. 3 is a flowchart for explaining a procedure in mode 1; 6 is a flowchart for explaining a procedure of mode 2. 10 is a flowchart for explaining a procedure of mode 3. It is a figure which shows the structural example of the thermal storage apparatus concerning 2nd Embodiment of this invention, and is sectional drawing of the part corresponding to the AA arrow of Fig.3 (a). It is the schematic which shows the structural example of the warming-up system for vehicles concerning 3rd Embodiment of this invention. It is a figure which shows the structural example of the thermal storage apparatus concerning 4th Embodiment of this invention, (a) is a disassembled perspective view, (b) is AA arrow sectional drawing of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle warm-up system 10 Heat storage apparatus 11 Housing | casing 12 Intermediate | middle member 13 Partition member 14 Lubricating oil distribution chamber (heat transfer medium distribution chamber)
15 Cooling water distribution chamber (heat transfer medium distribution chamber)
16 Heat storage material storage room (heat storage element storage room)
16a Division chamber 16b Communication part 17 Hydraulic oil distribution chamber (heat transfer medium distribution chamber)
18 Exhaust gas distribution chamber (heat transfer medium distribution chamber)
20 Thermal storage material (thermal storage element)
25 Nucleation device (supercooling release means)
30 engine (internal combustion engine)
31 Cooling water circulation path (heat transfer medium flow path)
34 Exhaust gas passage (heat transfer medium passage)
35 Radiator circuit 36 Lubricating oil circuit (heat transfer medium channel)
37 Electronically controlled thermostat valve 38 Water temperature sensor 40 Automatic transmission 41 Hydraulic oil circulation path (heat transfer medium flow path)
44 Car interior heating device 45 Heater core 46 Blower fan 47 Radiator 51 Heating switch 55 Defroster switch 56 Ignition switch (IG switch)
60 Opening / closing means 61 Rotating plate (Rotating body)
61a Opening 61b Inclined surface 62 Rotation drive mechanism 63 Rotating shaft 65 Cover member 65a Slit portion 65b Passage

Claims (13)

A heat storage device comprising: a heat storage element made of a latent heat storage material capable of storing heat in a supercooled state; and a supercooling release means for releasing the supercooled state of the heat storage element;
A heat transfer medium flow path for circulating a heat transfer medium between the engine to be warmed up and the heat storage device,
The heat storage device
A heat transfer medium flow chamber through which a heat transfer medium from the heat transfer medium flow channel flows, and a heat storage element storage chamber that stores a heat storage element capable of heat exchange with the heat transfer medium,
The heat storage element accommodation chamber is divided into a plurality of division chambers,
A communication unit that communicates the plurality of divided chambers, and an opening / closing means that switches an open / close state of the communication unit,
The opening / closing means includes a flat plate-like rotator having an opening disposed to face the communication portion in the divided chamber, and a rotation drive mechanism for rotating the rotator along the plate surface.
The vehicle warming-up system, wherein the opening / closing state of the communication portion is switched by changing the position of the opening with respect to the communication portion due to the rotation of the rotating body by the rotation drive mechanism.   2. The warming-up system for a vehicle according to claim 1, wherein the supercooling release unit is provided only in any one of the plurality of divided chambers. At the time of heat storage of the heat storage element, the communication section is opened by the opening and closing means, the plurality of divided chambers communicate,
3. When the supercooling state of the heat storage element is released by the supercooling release means, the communication part is closed by the opening and closing means, and the heat storage element accommodation chamber is divided into a plurality of divided chambers. The warm-up system for vehicles as described in.   The warming-up system for a vehicle according to claim 1, wherein a release operation of the supercooled state of the heat storage element is performed by the rotation of the rotating body. 5. The vehicle according to claim 1, wherein an inner peripheral end surface of the opening provided in the rotating body is an inclined surface inclined with respect to a plate surface of the rotating body. Warm-up system. The vehicle warm-up system according to any one of claims 1 to 5, wherein a cover member that partitions the rotary body and the heat storage element is provided outside the rotary body in the division chamber. The vehicle warm-up system according to claim 6, wherein a passage communicating with the heat transfer medium circulation chamber is formed inside the cover member. The communication part is provided at two or more places so as to communicate the three or more chambers, and the opening / closing means includes a plurality of rotating bodies arranged corresponding to the two or more communication parts, A rotating shaft that couples the plurality of rotating bodies, and the plurality of rotating bodies rotate integrally by the rotation of the rotating shaft by the rotation drive mechanism. Vehicle warm-up system. 9. The opening of at least one of the plurality of rotating bodies or the communication portion corresponding thereto is provided at a plurality of locations in the rotation direction of the rotating body. Vehicle warm-up system. At least one of the opening provided in each of the plurality of rotating bodies or the communication portion corresponding thereto is arranged at a position different from each other in the rotation direction of the rotating body,
10. The vehicle warm-up system according to claim 8, wherein the number of the communication parts opened when the openings coincide with each other can be arbitrarily set according to a rotation angle of the rotating body.   The warming-up system for a vehicle according to any one of claims 1 to 10, wherein the heat transfer medium is cooling water for an internal combustion engine.   The warming-up system for a vehicle according to any one of claims 1 to 10, wherein the heat transfer medium is lubricating oil for an internal combustion engine.   The warming-up system for a vehicle according to any one of claims 1 to 10, wherein the heat transfer medium is a hydraulic fluid for a transmission.

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