Cooling device, cooling system, and control method for cooling system

Abstract

To provide a cooling device capable of maximizing size reduction and efficiency improvement by changing structures of a capacitor and a radiator of the cooling device which is mounted on an existing internal combustion engine vehicle, and disposing them in one row even including a short-circuit overhang vehicle body structure of a small electric automobile, etc., a cooling system and a control method for the cooling system.SOLUTION: A cooling device includes: a plurality of cooling pipes in which a first cooling fluid and a second cooling fluid flow and which are arrayed in parallel; a tank which is communicated to the plurality of cooling pipes in such a manner that the first cooling fluid or the second cooling fluid flows to the plurality of cooling pipes; and a diaphragm which is positioned inside of the tank, separates the inside into a first space in which the first cooling fluid flows and a second space in which the second cooling fluid flows, and is coupled to the tank linearly movably in a direction in which the plurality of cooling pipes are arrayed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a structure and control method for varying a heat exchanger and preventing mixing of a refrigerant or cooling water, and more particularly, to a technology relating to a cooling device that can be used in small electric vehicles and the like. [Background technology]

[0002] Electric vehicles tend to have relatively short overhangs because the engine is not mounted in the front part of the vehicle body, which corresponds to the engine compartment of a conventional vehicle equipped with an internal combustion engine.

[0003] Therefore, in order to mount the drive motor, the reducer, the cooling device, etc. in the shortened overhang, a new cooling device structure is required to reduce the thickness.

[0004] In particular, in terms of cooling systems, internal combustion engines used in commercial vehicles maintain a coolant temperature of about 110 degrees Celsius for cooling, whereas motor components require a coolant temperature of about 65 degrees Celsius. Therefore, the size of the cooling system is relatively smaller than that of the cooling device used in the internal combustion engine, and the performance of the cooling system can be smoothly achieved.

[0005] The matters described above as the background art are intended only to enhance understanding of the background of the present invention, and should not be construed as an admission that they constitute prior art already known to those having ordinary skill in the art. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent Publication No. 10-2019-0104739 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention aims to provide a cooling device, a cooling system, and a control method for a cooling system, which can maximize size reduction and efficiency improvement by modifying the structure of the condenser and radiator of a cooling device mounted on an existing internal combustion engine vehicle and arranging them in parallel in a single row, even if the vehicle has a short overhang body structure such as a small electric vehicle. [Means for solving the problem]

[0008] According to one aspect of the present invention to achieve the above-mentioned object, there is provided a cooling device including: a plurality of cooling pipes arranged in parallel and having a first cooling fluid and a second cooling fluid flowing therethrough; a tank communicating with the plurality of cooling pipes so that the first cooling fluid or the second cooling fluid flows through the plurality of cooling pipes; and a partition located within the tank, separating the plurality of cooling pipes into a first space through which the first cooling fluid flows and a second space through which the second cooling fluid flows, and connected to the tank so as to be linearly movable in a direction in which the plurality of cooling pipes are arranged.

[0009] The cooling system may further include a guide extending in a direction in which the cooling pipes are arranged and screwed to the diaphragm, and an actuator for linearly moving the diaphragm by rotating the guide.

[0010] A diaphragm O-ring may be fastened between an outer surface of the diaphragm and an inner surface of the tank, and a guide O-ring and washer may be fastened between the diaphragm and the guide.

[0011] The septum and the guide may be threaded in the form of a square thread or a buttress thread.

[0012] According to another aspect of the present invention, there is provided a cooling system further including: an air conditioning circuit, the first cooling fluid being a refrigerant, connected to a first space so that the first cooling fluid flows therein, the air conditioning circuit being equipped with a cooling core for indoor air conditioning; and a cooling circuit, the second cooling fluid being coolant, connected to a second space so that the second cooling fluid flows therein, the cooling circuit being connected so that the second cooling fluid can exchange heat with an electrical component.

[0013] The cooling circuit may be provided with a first gas-liquid separator that separates gas from the fluid discharged from the tank, and the gas separated by the first gas-liquid separator may flow again into the first space of the tank.

[0014] The cooling circuit may be provided with a cooling water separator that separates cooling water from the fluid discharged from the tank by utilizing a difference in specific gravity, and the cooling water separator may be connected to the cooling circuit so that the separated cooling water is sent to the cooling circuit.

[0015] The refrigerant has a higher specific gravity than the cooling water in a liquid state, and the cooling water separator may have a first cooling water outlet connected to the cooling circuit and from which the cooling water is discharged, the first cooling water outlet being located higher in the direction of gravity than a first refrigerant outlet from which the refrigerant is discharged, and a first valve provided at the first cooling water outlet for allowing or blocking the flow of the cooling water.

[0016] The refrigerant has a higher specific gravity than the cooling water in a liquid state, and the cooling water separator may include a cooling water separator plate having a first cooling water outlet connected to the cooling circuit and from which the cooling water is discharged, located higher in a direction of gravity than a first refrigerant outlet from which the refrigerant is discharged, the cooling water separator extending in a planar direction within the cooling water separator and positioned movable in a vertical direction, the cooling water separator having a lower specific gravity than the refrigerant in a liquid state and a higher specific gravity than the cooling water, and having a through hole allowing fluid movement between an upper portion and a lower portion.

[0017] The coolant separation plate may be configured to block the first coolant outlet port when the coolant separation plate is at a maximum elevation inside the coolant separator.

[0018] The cooling circuit may include a second liquid / gas separator for separating gas from fluid discharged from the tank.

[0019] A refrigerant separator may be provided which separates the liquid refrigerant by utilizing a specific gravity difference while cooling the gas discharged from the second gas-liquid separator, and the refrigerant separator may be connected to the cooling circuit so that the separated refrigerant is sent to the cooling circuit.

[0020] The cooling circuit may be provided with a refrigerant separator that separates the refrigerant from the fluid discharged from the tank by utilizing a difference in specific gravity, the refrigerant separator is connected to the cooling circuit so that the separated refrigerant is sent to the cooling circuit, the refrigerant in a gaseous state has a specific gravity lower than that of the cooling water and a specific gravity higher than that of air, and the refrigerant separator may be provided with a refrigerant separation plate that is connected to the cooling circuit and has a second refrigerant discharge port from which the refrigerant is discharged, which is located above in the direction of gravity than a second cooling water discharge port from which the cooling water is discharged, extends in a planar direction inside the refrigerant separator, is positioned so as to be movable in the vertical direction, has a specific gravity lower than that of the refrigerant in a gaseous state and a specific gravity higher than that of air, and has a through hole that allows fluid movement between an upper part and a lower part.

[0021] The cooling water may flow inside the refrigerant separator so as to be maintained at a predetermined height that is lower in a direction of gravity than the second refrigerant discharge port, and the refrigerant separation plate may block the second refrigerant discharge port at the predetermined height.

[0022] The refrigerant separation plate may be provided with a gas inlet portion having a gas stored therein.

[0023] The refrigerant separator may include a flow restricting portion disposed inside the refrigerant separator, the flow restricting portion restricting a flow direction of the fluid discharged from the tank.

[0024] According to another aspect of the present invention, there is provided a method for controlling a cooling system, comprising the steps of: calculating a current cooling load of a cooling circuit and a current cooling load of a cooling circuit based on a current driving state; calculating a ratio between the calculated current cooling load and the current cooling load; and controlling movement of a diaphragm based on the calculated ratio between the current cooling load and the current cooling load.

[0025] The method further includes, before the step of controlling the movement of the diaphragm, a step of calculating an estimated cooling load of the air conditioning circuit and an estimated cooling load of the cooling circuit based on an estimated driving state predicted after a predetermined time or a predetermined distance using navigation information, and a step of calculating a ratio between the calculated estimated cooling load and the estimated cooling load, and the step of controlling the movement of the diaphragm controls the movement of the diaphragm based on changes in the calculated ratio between the current cooling load and the current cooling load and the ratio between the calculated estimated cooling load and the estimated cooling load. Effect of the Invention

[0026] The present invention allows for the mini electric vehicle to have a short overhang body structure, but also maximizes size reduction and efficiency improvement by modifying the structure of the condenser and radiator of the cooling device installed in the existing internal combustion engine vehicle and arranging them in parallel in a single row. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 shows a cooling device according to the present invention. [Diagram 2] FIG. 2 shows some of the components that are coupled to the diaphragm of FIG. 1. [Diagram 3] FIG. 2 shows components that are coupled to the diaphragm of FIG. 1. [Figure 4] FIG. 1 illustrates a cooling system according to the present invention. [Diagram 5] FIG. 2 is a perspective view showing a cooling water separator. [Figure 6] FIG. 4 is a perspective view showing a cooling water separation plate. [Figure 7] FIG. 6 is a cross-sectional view of FIG. [Figure 8] FIG. 2 is a cross-sectional view showing a refrigerant separator. [Figure 9] FIG. [Figure 10] 4 is a flow chart illustrating a method of operating a cooling system according to the present invention. [Figure 11] 1 is a graph showing a ratio of a cooling load to a cooling load. [Figure 12] 12 is a graph showing the adjustment of the cooling system according to the slope of FIG. 11. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Referring to FIG. 1, an embodiment of the cooling device of the present invention includes a plurality of cooling pipes 1 arranged in parallel and having a first cooling fluid and a second cooling fluid flowing therein, a tank 3 connected to the plurality of cooling pipes 1 so that the first cooling fluid or the second cooling fluid flows through the plurality of cooling pipes 1, and a partition 9 located inside the tank 3 and separated into a first space 36 through which the first cooling fluid flows and a second space 38 through which the second cooling fluid flows, and connected to the tank 3 so as to be linearly movable in the direction in which the plurality of cooling pipes 1 are arranged.

[0029] The cooling pipe 1 in the cooling device structure of the present invention has a first cooling fluid and a second cooling fluid flowing therein, and is provided in multiple pieces, with the first cooling fluid flowing through some of them and the second cooling fluid flowing through the remaining parts.

[0030] Furthermore, the cooling pipes 1 can be arranged in parallel, particularly in a single row, and can share one common cooling fan.

[0031] As a result, by reducing the airflow resistance in a single-row parallel arrangement, the capacity and size of the fan motor of the heat exchanger can be reduced, and the air volume and heat dissipation amount can be increased when using a fan motor of the same capacity.

[0032] A heat exchanger is provided in which a condenser through which a first cooling fluid flows and a radiator through which a second cooling fluid flows are arranged in parallel in a row and coupled together, and one cooling fan is shared by the condenser and the radiator.

[0033] In addition, the condenser and the radiator use the same cooling pipe 1 through which the first cooling fluid and the second cooling fluid flow, and by providing the same tank 3 on the upper and lower sides of the cooling pipe 1, the first cooling fluid and the second cooling fluid flowing in from the upper tank 3 can flow.

[0034] In particular, the cooling pipe 1 can extend in the vertical direction, and the tank 3 can be located on both the upper and lower sides, or can be located only on the upper side or only on the lower side.

[0035] By providing the partition 9 inside the tank 3, the first cooling fluid and the second cooling fluid are separated to prevent them from mixing, and the number of the cooling pipes 1 communicating with the first space 36 and the second space 38 can be determined according to the variation of the partition 9.

[0036] That is, a hole is provided in the center of the diaphragm 9, a guide 13 is connected to the hole, and a shaft 21 is further provided that passes through the central axis of the guide 13. An actuator 11 is provided on the head of the guide 13 so that the guide 13 can be rotated to move the diaphragm 9 linearly. Thus, the guide 13 rotates with the rotation of the actuator 11, and the diaphragm is moved by the linear movement.

[0037] In addition, the guide 13 may further include a shaft holder 23 capable of fixing both ends of the shaft 21 so that the guide 13 does not swing or come off while rotating.

[0038] More specifically, the guide 13 may be formed in the shape of a square thread or a buttress thread, and the hole of the diaphragm 9 may also be formed in the shape of a nut-type square thread or buttress thread so as to be coupled with the guide 13.

[0039] As shown in FIG. 2, in order to prevent the first cooling fluid and the second cooling fluid from being mixed with each other due to the diaphragm 9 being deformed by the rotational force of the guide 13 inside the tank 3, a groove is provided on the outer surface of the diaphragm 9, i.e., the surface that contacts the tank 3, and a diaphragm O-ring 17 is fastened in this groove. A pair of guide O-rings 15 and a washer 19 are further provided and fastened between the diaphragm 9 and the guide 13.

[0040] As a cooling system including the cooling device, there is provided a cooling system further including: an air conditioning circuit 89 in which the first cooling fluid is a refrigerant 29, the air conditioning circuit 89 is connected to the first space 36 so that the first cooling fluid flows therein, and the air conditioning circuit 89 is equipped with a cooling core 43 for indoor air conditioning; and a cooling circuit 91 in which the second cooling fluid is coolant 27, the air conditioning circuit 89 is connected to the second space 38 so that the second cooling fluid flows therein, and the cooling circuit 91 is connected so that the coolant 27 can exchange heat with electrical components 57.

[0041] As shown in FIG. 4, the air conditioning circuit 89 is equipped with a first gas-liquid separator 35, an expansion valve 41, a cooling core 43 and a compressor 47, and the fluid circulates through each component in sequence before returning to the inlet 5 of the tank 3. Similarly, in the cooling circuit 91, the fluid circulates through a second gas-liquid separator 49 and electrical components 57 in sequence before returning to the inlet 5 of the tank 3.

[0042] In other words, the fluids flowing into the tank 3 via the cooling circuit 91 and the air conditioning circuit 89 are the refrigerant 29, the gaseous refrigerant 31, the air 33 and the cooling water 27, and the fluids flowing into the tank 3 are mixed by the movement of the diaphragm 9 and then discharged.

[0043] Considering the flow of fluids in the cooling circuit 89, the gas refrigerant 31 is primarily separated from the gas refrigerant 31, refrigerant 29 and cooling water 27 mixed and flowing into the first gas-liquid separator 35 of the cooling circuit 89, and is discharged again to the inlet 5 of the tank 3 through the first space 36. Further, a cooling water separator 37 is provided which separates the refrigerant 29 and the cooling water 27 discharged from the first gas-liquid separator 35 by utilizing the difference in specific gravity, and is connected to the cooling circuit 91 so that the separated cooling water 27 is sent to the cooling circuit 91.

[0044] The gas refrigerant 31 here may include the air 33 .

[0045] In a first embodiment of the cooling water separator 37 which separates the cooling water 27 and the refrigerant 29, since the refrigerant 29 has a greater specific gravity than the cooling water 27 in a liquid state, the cooling water 27 is separated onto the refrigerant 29, and a first cooling water discharge port 65 from which the separated cooling water 27 is discharged is positioned higher in the direction of gravity than a first refrigerant discharge port 63 from which the refrigerant 29 is discharged, so that each fluid can be discharged through a different discharge port.

[0046] In addition, a first valve 39 capable of allowing or blocking the flow of the cooling water 27 to the first cooling water outlet 65 and preventing the inflow of the refrigerant 29 may be provided between the first cooling water outlet 65 and the cooling water separator 37.

[0047] In a second embodiment of the cooling water separator 37 which separates the cooling water 27 and the refrigerant 29, the cooling water separator 37 has a first cooling water discharge port 65 which is connected to a cooling circuit 91 and from which the cooling water 27 is discharged, which is located higher in the direction of gravity than a first refrigerant discharge port 63 from which the refrigerant 29 is discharged, and a cooling water separation plate 59 is provided inside the cooling water separator 37, thereby enabling the refrigerant 29 and the cooling water 27 to be separated.

[0048] In other words, the specific gravity of the cooling water separation plate 59 is configured to have the relationship of cooling water < cooling water separation plate < refrigerant. The cooling water separation plate 59 is shaped to extend in a planar direction inside the cooling water separator 37, and has a plurality of through holes 69 to allow fluid movement between the upper and lower parts.

[0049] In addition, the cooling water separation plate 59 is positioned so as to be movable in the vertical direction by the refrigerant 29, and is configured to include a shape that encloses the inside of the cooling water separator 37 so as to prevent the cooling water 27 from being mixed and discharged when the separated cooling water 27 is discharged through the first cooling water outlet 65. This does not require the first valve 39 of the first embodiment, but may be provided as necessary.

[0050] In a third embodiment of the coolant separator 37 which separates the coolant 27 and the refrigerant 29, as shown in FIG. 5 , in the coolant separator 37, a first coolant discharge port 65 which is connected to a cooling circuit 91 and through which the coolant 27 is discharged is located higher in the direction of gravity than a first refrigerant discharge port 63 through which the refrigerant 29 is discharged, and more specifically, the first coolant discharge port 65 is provided vertically on the upper side of the coolant separator 37 in a direction intersecting with the first refrigerant discharge port 63.

[0051] In addition, the cooling water separator 37 is provided with the cooling water separation plate 59 similar to that of the second embodiment, and the cooling water separation plate 59 further includes a cock 67 so that the cooling water separation plate 59 can be inserted into a first cooling water outlet 65 when it is raised to its maximum position inside the cooling water separator 37 by the refrigerant 29, thereby blocking the inflow of the refrigerant 29.

[0052] That is, when the cooling water separating plate 59 is raised to its maximum position inside the cooling water separator 37, the cock 67 is inserted into the first cooling water outlet 65 to block it, but in order to prevent a certain amount of mixing, a groove is provided in the cock 67, and a cock O-ring 71 is fitted into this groove.

[0053] Therefore, depending on the embodiment of the coolant separator 37, the positions of the first coolant outlet 65 and the first refrigerant outlet 63 and whether or not the coolant separator plate 59 is used may be changed as necessary.

[0054] The cooling water separated through the cooling water separator 37 is connected to the discharge outlet 7 of the tank 3 and then connected to the cooling circuit 91, and the separated refrigerant 29 flows into the inlet 5 of the tank 3 via the expansion valve 41, the cooling core 43 and the compressor 47 in that order.

[0055] Considering the flow of fluid flowing in the cooling circuit 91, the cooling water 27 is separated from the gas refrigerant 31, the air 33 and the cooling water 27 which flow into the second gas-liquid separator 49 via the cooling circuit 91 and discharged to electrical components 57, and the gas refrigerant 31 and air discharged from the second gas-liquid separator 49 are converted into the refrigerant 29 in a liquid state by a heat exchanger 45. Furthermore, a refrigerant separator 51 which separates the air 33 and the refrigerant 29 is provided.

[0056] In the first embodiment of the refrigerant separator 51 for separating the air 33 and the refrigerant 29, the air is separated above the refrigerant 29 due to the difference in specific gravity between the air and the refrigerant 29 inside the refrigerant separator 51, and a pressure cap 53 is further provided above the refrigerant separator 51 to discharge the air.

[0057] In addition, the refrigerant separator 51 is provided with a second refrigerant discharge port 75 so that the refrigerant 29 is sent to the air conditioning circuit 89, and is provided with a second valve 55 that allows or blocks the flow of the refrigerant 29 to the second refrigerant discharge port 75.

[0058] A second valve 55 installed at the second refrigerant discharge port 75 may be provided as necessary.

[0059] In addition, the second embodiment of the refrigerant separator 51 does not include the second gas-liquid separator 49, but instead includes the refrigerant separator 51 that can separate the gas refrigerant 31 from the air 33 and the cooling water 27, allowing them to flow in immediately.

[0060] 8, a refrigerant separation plate 79 is provided to separate the gas refrigerant 31 and the air 33 flowing into the refrigerant separator 51, and the specific gravity of the refrigerant separation plate 79 is configured to have a relationship of air < ​​refrigerant separation plate < gas refrigerant. The refrigerant separation plate 79 extends in a planar direction inside the refrigerant separator 51, and has a plurality of through holes 83 to allow fluid movement between the upper and lower parts.

[0061] Therefore, a second refrigerant discharge port 75 and a second cooling water discharge port 77 from which the cooling water 27 is discharged are provided so that the gas refrigerant 31 separated by the refrigerant separator 51 can be sent to the air conditioning circuit 89, and the second refrigerant discharge port 75 is positioned above and spaced apart in the direction of gravity than the second cooling water discharge port 77.

[0062] The gas refrigerant 31 flowing into the refrigerant separator 51 is provided with a flow restriction section 85 that restricts the flow direction of the gas refrigerant 31 upward so that the gas refrigerant 31 does not mix with the cooling water 27 and does not flow into the second cooling water discharge port 77.

[0063] In addition, the refrigerant separation plate 79 is positioned so as to be able to move vertically by the gas refrigerant 31, and is formed to include a shape that encloses the inside of the refrigerant separator 51, thereby preventing the air from being mixed in and discharged when the separated gas refrigerant 31 is discharged to the second refrigerant discharge port 75, and when an appropriate amount of the gas refrigerant 31 has been discharged, the refrigerant separation plate descends to block the second refrigerant discharge port, preventing the air 33 from being discharged.

[0064] That is, the cooling water 27 in the refrigerant separator 51 flows inside the refrigerant separator 51 so as to be maintained at a predetermined height 87 that is lower in the direction of gravity than the second refrigerant discharge port, and when the gas refrigerant 31 is completely discharged, the refrigerant separation plate 79 blocks the second refrigerant discharge port 75 at the predetermined height 87 to prevent air from flowing in.

[0065] Referring to FIG. 9, the refrigerant separation plate 79 provided between the air and the gas refrigerant 31 may be further provided with a gas inlet 81 in which gas is stored to match the specific gravity.

[0066] In addition, a pressure cap 53 is further provided on the upper side of the refrigerant separator 51 in order to exhaust the air 33 separated by the refrigerant separation plate 79 .

[0067] Therefore, the cooling water 27 separated by the refrigerant separator 51 in the second embodiment passes through electrical components 57 and is connected to the inlet 5 of the tank, and the separated gaseous refrigerant 31 is sent to the air conditioning circuit 89 as described above, but is connected between the cooling core 43 and the compressor 47 and discharged.

[0068] 10 to 12, a method for controlling the cooling system of the present invention includes a step (S40) of calculating a current cooling load of the cooling circuit 89 and a current cooling load of the cooling circuit 91 based on a current running state, a step (S50) of calculating a ratio between the calculated current cooling load and the current cooling load, and a step (S60) of controlling the movement of the diaphragm 9 based on the calculated ratio between the current cooling load and the current cooling load.

[0069] That is, the ratio between the cooling load and the air-conditioning load is calculated, and the diaphragm is varied by a circuit connected to the actuator 11 to control which load is given priority.

[0070] Therefore, before the step (S60) of controlling the movement of the diaphragm 9, the method further includes a step (S23) of calculating an estimated cooling load of the cooling circuit 89 and an estimated cooling load of the cooling circuit 91 based on an estimated driving state predicted after a predetermined time or a predetermined distance using navigation information, and a step (S24) of calculating a ratio between the calculated estimated cooling load and the estimated cooling load.

[0071] In other words, when a customer drives without inputting a destination into the navigation (S10), the system calculates the energy usage in the current state and starts controlling the cooling system (S30). By giving priority to the current driving state at this time, the system calculates the current cooling load ratio (a) and the current cooling load ratio (b) (S40) and determines the ratio (D) of the condenser and the radiator according to the current respective ratios (S50).

[0072] Therefore, by controlling the cooling system according to the current ratio (D) (S60), when the cooling load becomes high, the number of the cooling pipes through which the refrigerant flows is increased to give priority to cooling, and when the cooling load becomes high, the number of the cooling pipes through which the cooling water flows is increased to give priority to cooling.

[0073] Since the cooling system has a stabilization speed while the vehicle is currently traveling, it is difficult to respond immediately. To compensate for this, the destination is input into the vehicle's navigation system (S10), and the navigation information is used to predict energy usage and control the cooling system in advance (S21).

[0074] In other words, the predicted cooling load ratio (a') and predicted cooling load ratio (b') several minutes before arriving at the destination (S20) are calculated (S23), and the coordinate slope (C) can be found by using the proportional relationship with the current cooling load ratio (a) and the current cooling load ratio (b) calculated (S22) (S24).

[0075] As shown in FIG. 12, it is possible to predict the future several minutes into the future 360 ​​degrees based on the current standard according to the angle of the inclination C, and it is determined whether the predicted future corresponds to cooling / cooling / equal, cooling priority, or cooling priority, and the advanced cooling system is controlled according to the corresponding angle (S25).

[0076] Therefore, it is possible to predict the future state of the customer and to predict the energy usage of the cooling load and the air-conditioning load.

[0077] In addition, when the customer understands the travel route selected by the navigation system, the cooling load and cooling load several minutes later are predicted and calculated in advance using factors for each cell such as the road gradient, outside temperature, expected vehicle speed, maximum possible driving speed, traffic volume, and speed limit, and the respective ratios are determined in advance taking into account the stability of the system, and the diaphragm 9 is varied.

[0078] In addition, if an unexpected event occurs, the prediction calculation is terminated and the difference between the predictions is corrected to the current state using factors considered for each cell, such as the target temperature, the current indoor temperature, the current number of occupants in the vehicle, the vehicle weight, the amount of fuel, and the accelerator pedal opening amount.

[0079] Here, the air conditioning load is calculated based on sensing of the number of people, the amount of solar radiation, the outside air temperature, and the target indoor temperature, and the cooling load is calculated based on sensing of the vehicle speed, the accelerator pedal opening amount, the ascent, the outside air temperature, and the like.

[0080] In the control step of the present invention, which can determine the number of cooling pipes by varying the diaphragm 9, the movement of the diaphragm 9 is controlled based on the ratio (D) between the calculated current cooling load and the current cooling load and the change (C) in the ratio between the calculated predicted cooling load and the predicted cooling load.

[0081] Therefore, by using the vehicle's navigation destination information to predict future energy usage and respond preemptively, it is possible to maximize efficiency by contributing to maintaining the vehicle in optimal condition and improving fuel / electricity efficiency.

[0082] Although the present invention has been illustrated and described with respect to specific embodiments, it will be apparent to those having ordinary skill in the art that various modifications and variations can be made thereto without departing from the spirit and scope of the invention as set forth in the following claims. [Explanation of symbols]

[0083] 1 Cooling pipe 3. Tank 5. Tank inlet 7 Tank outlet 9 Diaphragm 11 Actuator 13 Guide 15 Guide O-ring 17 Diaphragm O-ring 19 Washer 21 Shaft 23 Shaft holder 27 Cooling water 29 Refrigerants 31 Gaseous refrigerants 33 Air 35 1st gas-liquid separator 36 1st space 37 Cooling water separator 38 Second space 39 First Valve 41 Expansion valve 43 Cooling Core 45 Heat exchanger 47 Compressor 49 Second gas-liquid separator 51 Refrigerant separator 53 Pressure Cap 55 Second valve 57 Electrical components 59 Cooling water separation plate 61 Inlet 63 1st refrigerant discharge port 65 1st cooling water outlet 67 Cook 69 Through hole 71 Cock O-ring 73 Inlet 75 2nd refrigerant discharge port 77 2nd cooling water outlet 79 Refrigerant separation plate 81 Gas Injection Section 83 Through hole 85 Flow restriction section 87 Prescribed Height 89 Cooling circuit 91 Cooling circuit a Current cooling load ratio b Percentage of current cooling load a' Percentage of expected cooling load b' Percentage of expected cooling load

Claims

1. a plurality of cooling pipes arranged in parallel and through which a first cooling fluid and a second cooling fluid flow; a tank communicating with the plurality of cooling pipes so that the first cooling fluid or the second cooling fluid flows through the plurality of cooling pipes; a partition located within the tank, separating the tank into a first space through which the first cooling fluid flows and a second space through which the second cooling fluid flows, the partition being connected to the tank so as to be linearly movable in a direction in which the plurality of cooling pipes are arranged.

2. a guide extending in a direction in which the cooling pipes are arranged and screwed to the diaphragm; and The cooling device according to claim 1 , further comprising an actuator for rotating the guide to linearly move the diaphragm.

3. A diaphragm O-ring is fastened between the outer surface of the diaphragm and the inner surface of the tank; 3. The cooling device of claim 2, wherein a guide O-ring and a washer are fastened between the diaphragm and the guide.

4. The cooling device according to claim 2 , wherein the diaphragm and the guide are formed with a square thread or a sawtooth thread.

5. A cooling system including the cooling device according to claim 1, the first cooling fluid is a refrigerant, the first cooling fluid is connected to the first space so that the first cooling fluid flows therein, and the cooling circuit includes a cooling core for indoor air conditioning; the second cooling fluid is cooling water; and a cooling circuit connected to the second space so that the second cooling fluid flows therein and connected so that the second cooling fluid can exchange heat with an electrical component.

6. the cooling circuit includes a first gas-liquid separator for separating gas from the fluid discharged from the tank; The cooling system according to claim 5 , wherein the gas separated in the first gas-liquid separator flows again into the first space of the tank.

7. The cooling circuit is provided with a cooling water separator that separates the cooling water from the fluid discharged from the tank by utilizing a specific gravity difference, The cooling system according to claim 5, wherein the cooling water separator is connected to the cooling circuit such that the separated cooling water is sent to the cooling circuit.

8. The refrigerant has a higher specific gravity than the cooling water in a liquid state, The cooling water separator has a first cooling water outlet port connected to the cooling circuit and from which the cooling water is discharged, the first cooling water outlet port being located above a first refrigerant outlet port from which the refrigerant is discharged in a gravitational direction, The cooling system according to claim 7 , further comprising a first valve provided at the first cooling water outlet for allowing or blocking the flow of the cooling water.

9. The refrigerant has a higher specific gravity than the cooling water in a liquid state, The cooling water separator has a first cooling water outlet port connected to the cooling circuit and from which the cooling water is discharged, the first cooling water outlet port being located above a first refrigerant outlet port from which the refrigerant is discharged in a gravitational direction, 8. The cooling system according to claim 7, further comprising a cooling water separator plate extending in a planar direction within the cooling water separator, being movably positioned in a vertical direction, having a specific gravity lower than that of the refrigerant in a liquid state and higher than that of the cooling water, and having a through hole allowing fluid movement between an upper portion and a lower portion.

10. The cooling system according to claim 9, wherein the cooling water separation plate blocks the first cooling water outlet when it is at a maximum elevation inside the cooling water separator.

11. 6. The cooling system according to claim 5, further comprising a second gas-liquid separator in the cooling circuit for separating gas from the fluid discharged from the tank.

12. A refrigerant separator is provided to separate the refrigerant in a liquid state by cooling the gas discharged from the second gas-liquid separator using a specific gravity difference, The cooling system according to claim 11, wherein the refrigerant separator is connected to the cooling circuit such that the separated refrigerant is sent to the cooling circuit.

13. The cooling circuit is provided with a refrigerant separator that separates the refrigerant from the fluid discharged from the tank by utilizing a specific gravity difference, and the refrigerant separator is connected to the cooling circuit so that the separated refrigerant is sent to the cooling circuit, The refrigerant has a specific gravity smaller than that of the cooling water and larger than that of air in a gaseous state. The refrigerant separator has a second refrigerant discharge port connected to the cooling circuit and from which the refrigerant is discharged, the second refrigerant discharge port being located above a second cooling water discharge port from which the cooling water is discharged in a gravitational direction, 6. The cooling system according to claim 5, further comprising a refrigerant separator plate extending in a planar direction within the refrigerant separator, movably positioned in a vertical direction, having a specific gravity lower than that of the refrigerant in a gaseous state and higher than that of air, and having through holes that allow fluid movement between an upper portion and a lower portion.

14. The cooling water flows inside the refrigerant separator so as to be maintained at a predetermined height that is lower than the second refrigerant discharge port in a gravitational direction, The cooling system according to claim 13, wherein the refrigerant separation plate blocks the second refrigerant discharge port at the predetermined height.

15. The cooling system according to claim 13, wherein the refrigerant separation plate is provided with a gas inlet having a gas stored therein.

16. The cooling system according to claim 13, wherein the refrigerant separator is provided with a flow restricting portion disposed inside the refrigerant separator, the flow restricting portion restricting a flow direction of the fluid discharged from the tank.

17. 6. A method of controlling a cooling system according to claim 5, comprising the steps of: Calculating a current cooling load of the cooling circuit and a current cooling load of the cooling circuit based on a current driving state; Calculating a ratio between the calculated current cooling load and the current cooling load; and controlling the movement of the membrane based on a ratio between the calculated current cooling load and the current cooling load.

18. calculating a predicted cooling load of the cooling circuit and a predicted cooling load of the cooling circuit based on a predicted driving state predicted after a predetermined time or a predetermined distance using navigation information before the step of controlling the movement of the diaphragm; Calculating a ratio between the calculated predicted cooling load and the expected cooling load; 18. The control method for a cooling system according to claim 17, characterized in that in the step of controlling the movement of the diaphragm, the movement of the diaphragm is controlled based on a change in a ratio between the calculated current cooling load and the current cooling load and a ratio between the calculated predicted cooling load and the predicted cooling load.

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