Cooling water control unit

Abstract

Disclosed is a cooling water control unit. With the cooling water control unit of the present embodiment, heat exchange is performed between the high-temperature heat energy generated in the control unit and the low-temperature heat energy possessed by the cooling water, thereby enabling stable operation of the control unit.

Description

Technical Field

[0001] This embodiment relates to a cooling water control unit, which is used to efficiently supply cooling water to various cooling or heating units and electrical systems of environmentally friendly vehicles to achieve cooling. Background Technology

[0002] Because conventional internal combustion engine vehicles pose environmental problems, the popularity of environmentally friendly vehicles such as electric vehicles is expanding. However, in the case of existing internal combustion engine vehicles, heating can be easily provided to the passenger compartment using the engine's waste heat.

[0003] Recently, various environmentally friendly vehicles that are more environmentally friendly than internal combustion engine vehicles have emerged. As an example, electric vehicles (EVs) are the most likely alternative to solve future automobile pollution and energy problems, so research on electric vehicles is in full swing.

[0004] Electric vehicles can be broadly categorized into fuel cell-driven vehicles, which are powered by electricity generated from chemical changes; secondary battery-driven vehicles, which are powered by batteries driving AC or DC motors; and other types of vehicles that obtain power by supplying electricity in ways not listed above.

[0005] This type of electric vehicle generates a significant amount of heat when supplying power to the drive unit. Furthermore, the increased heat also raises the vehicle's resistance, accelerating discharge and reducing both charging and discharging efficiency, as well as shortening its lifespan. Therefore, a cooling water circulation loop is installed to properly cool the vehicle.

[0006] Moreover, similar to existing internal combustion engine vehicles, electric vehicles also have refrigerant circulation loops for heating and cooling the passenger compartment, as well as air circulation loops for exchanging air within the passenger compartment.

[0007] As described above, electric vehicles are equipped with various valve devices that distribute, control, and even restrict the flow of fluids to the battery's cooling water circulation loop, air circulation loop, refrigerant circulation loop, etc.

[0008] On the other hand, due to vehicle automation, thermal management is required not only for the vehicle's interior but also for high-voltage batteries, motors, and other electronic components. In other words, in the case of electric vehicles, the need for air conditioning differs between the interior space, the battery, and the electronic components. Therefore, a technology is needed that allows each component to function independently yet work together effectively to maximize energy savings.

[0009] The cooling system for electronic components mainly consists of the following components: cooling water is used to cool electronic components, actuators, and HSG (hybrid start and generator), while in cold weather, the cooling water is routed through a bypass loop to the radiators, and the waste heat from the PE components (Power Electronics) is used to heat the battery.

[0010] However, in the electronic cooling system of environmentally friendly vehicles, the components used to control the flow of cooling water need to meet various purposes such as heating supply, cooling, and waste heat recovery for multiple components.

[0011] The following examples illustrate the cooling water valves and cooling water pumps found in existing environmentally friendly vehicles.

[0012] Reference Figure 1 The existing cooling water valve 10 and cooling water pumps 20 and 30 are adjacent to the existing electronic components and are installed independently in the vehicle in different positions. The aforementioned separate components are connected by a hose of predetermined length as a medium.

[0013] As an example, the controller 40 is independently located in another position to control the operation of the aforementioned cooling water valve 10 and cooling water pumps 20 and 30, and is connected to the aforementioned cooling water valve 10 and cooling water pumps 20 and 30, and is connected to the vehicle 30 via the line 60 as a medium.

[0014] The existing cooling water valve 10 and cooling water pumps 20 and 30 do not have an additional cooling circuit utilizing flowing cooling water; they only rely on the cooling water flowing to the cooling water pumps 20 and 30 for heat dissipation. Therefore, this limits the development of high-power cooling water pumps. Furthermore, the cooling water valve cannot operate under high-temperature conditions, which leads to a reduction in the allowable operating current.

[0015] Furthermore, a wiring 60 must be installed to connect the aforementioned cooling water valve 10 and cooling water pumps 20 and 30 to each other, which increases assembly time and manufacturing costs and reduces the ease of component installation. Summary of the Invention

[0016] Technical issues

[0017] This embodiment provides a cooling water control unit that can supply cooling water to various electronic components in an environmentally friendly vehicle in a coordinated manner, and use the cooling water to stably cool the high heat generated by the cooling water control unit during operation.

[0018] Technical solution

[0019] The cooling water control unit based on this embodiment includes: a housing 100 forming an overall shape; a valve unit 200 rotatably disposed inside the housing 100 for changing the direction of cooling water delivery; a cooling water pump unit 300 connected to the housing 100; a drive motor unit 400 for driving the valve unit 200; a control unit 500 for controlling the operation of the valve unit 200, the cooling water pump unit 300, and the drive motor unit 400; and a controller housing 600 housing the control unit 500 and forming a cooling water inlet 610 through which the cooling water flows in. The heat generated by the control unit 500 and the cooling water flowing in through the cooling water inlet 610 exchange heat through heat transfer to cool the control unit 500.

[0020] The aforementioned housing 100 further includes: a cooling water reservoir 110 for storing cooling water supplied to the housing 100; and a cooling water outlet 120 configured to discharge cooling water supplied through the cooling water inlet 610 or the cooling water reservoir 110.

[0021] The controller housing 600 and the housing 100 are made of different materials.

[0022] The controller housing 600 mentioned above is made of a material with high heat transfer efficiency.

[0023] The controller housing 600 has a controller housing 602 for housing the control unit 500, and a heat transfer layer 604 is formed between the control unit 500 and the controller housing 602 to transfer the heat generated by the control unit 500 to the controller housing 602.

[0024] The controller housing 602 also includes a heat transfer guide 606, which is used to impart directionality when the heat energy generated by the control unit 500 is transferred through the extended path of the cooling water inflow section 610.

[0025] The heat transfer guiding part 606 is formed in the shape of a thin plate and extends a predetermined length from the inflow direction of the cooling water inflow part 610.

[0026] The heat transfer guide portion 606 includes: a first heat transfer guide portion 606a, formed on the inner bottom surface of the controller housing portion 602 with a predetermined length; and a second heat transfer guide portion 606b, extending from the extended end of the first heat transfer guide portion 606a along the inner edge of the controller housing portion 602.

[0027] The heat transfer guide 606 is formed in the controller housing 602 in either an embossed or recessed manner.

[0028] The aforementioned cooling water pump unit 300 includes: a first cooling water pump 310, which is provided for supplying cooling water to the electrical system unit of the environmentally friendly vehicle; and a second cooling water pump 320, which is provided for supplying cooling water to the battery unit or electronic components connected to the battery of the aforementioned environmentally friendly vehicle.

[0029] The cooling water inlet 610 includes: a first cooling water inlet 612, which supplies low-temperature cooling water to the first cooling water pump 310 and transfers heat with the heat generated in the control unit 500; and a second cooling water inlet 614, which supplies low-temperature cooling water to the second cooling water pump 320 and transfers heat with the heat generated in the control unit 500.

[0030] The aforementioned cooling water storage tank 110 has a partition 113 that divides the internal space into independent spaces for storage.

[0031] The aforementioned cooling water control unit also includes a cover 700, which is combined with the aforementioned controller housing 600 to house the aforementioned drive motor 400 inside.

[0032] Invention Effects

[0033] According to various embodiments of the present invention, the cooling water supplied to the power system electronic components and battery electronic components installed in environmentally friendly vehicles can be managed in a coordinated manner. Based on the heat exchange between the controller housing and the outside air, the air cooling heat dissipation and the heat exchange using the heat energy generated at high temperature in the controller unit and the cooling water heat transfer mode can stably achieve the cooling of the control unit.

[0034] According to this embodiment, a cooling water control unit integrating a pump unit, drive motor, valve unit, and control unit can be easily manufactured, thereby improving operator workability and saving manufacturing costs.

[0035] According to this embodiment, a cooling water control unit can be provided that dissipates heat generated in the control unit by means of heat transfer through the controller housing and the flow of cooling water, and can operate stably regardless of temperature changes and changes in the place of use. Attached Figure Description

[0036] Figure 1 This diagram shows the cooling water valves and cooling water pumps found in existing environmentally friendly vehicles.

[0037] Figure 2 This is an exploded perspective view of the cooling water control unit based on this embodiment.

[0038] Figure 3 and Figure 4This is a three-dimensional view of the assembled cooling water control unit based on this embodiment, viewed from multiple angles.

[0039] Figure 5 yes Figure 4 Longitudinal section view.

[0040] Figure 6 and Figure 7 This is a diagram of the controller housing based on this embodiment.

[0041] Figure 8 yes Figure 7 Assembly cross-sectional view.

[0042] Figure 9 This is a top view showing the heat transfer guide provided in the controller housing based on this embodiment.

[0043] Figure 10 This is a diagram showing a modified embodiment of the heat transfer guide based on this embodiment.

[0044] Figure 11 This is a diagram illustrating other embodiments of the heat transfer guide based on this embodiment.

[0045] Figures 12 to 15 This is a diagram showing the operating status of the cooling water control unit based on this embodiment. Detailed Implementation

[0046] The advantages, features, and methods for implementing the present invention will become clear from the detailed description of the embodiments with reference to the accompanying drawings. The present invention is not limited to the disclosed embodiments and can be modified in various ways. The embodiments are merely provided to make the invention more complete and to enable those skilled in the art to readily understand it. The scope of the invention is defined by the scope of the claims. The same reference numerals in the specification denote the same constituent elements.

[0047] When a constituent element is described as "connected to" or "coupled to" another constituent element, it should be understood that while it may be directly coupled to or connected to the other constituent element, there may also be other constituent elements in between. Conversely, when a constituent element is described as "directly connected" or "directly connected" to another constituent element, it should be understood that there are no other constituent elements in between. "And / or" indicates each of the contents involved or all combinations of one or more of them.

[0048] The terminology used in this specification is for illustrative purposes only and is not intended to limit the invention. The singular form includes both singular and plural forms, except where the context clearly indicates a different meaning. It should be understood that terms such as "comprises" or "comprising" in this specification are intended to indicate the structural elements, steps, actions, and / or components described in the specification, and are not intended to exclude the presence or additional possibilities of more than one other structural element, step, action, and / or component.

[0049] Terms such as ordinal numbers (e.g., 1st, 2nd) may be used to describe various constituent elements, but these constituent elements are not limited by these terms. These terms are used only for the purpose of distinguishing one constituent element from another.

[0050] Figure 2 This is an exploded perspective view of the cooling water control unit based on this embodiment. Figure 3 and Figure 4 This is a three-dimensional view of the assembled cooling water control unit based on this embodiment, viewed from multiple angles. Figure 5 yes Figure 4 Longitudinal section view. Figure 6 and Figure 7 This is a diagram of the controller housing based on this embodiment. Figure 8 yes Figure 7 Assembly cross-sectional view.

[0051] Reference Figures 2 to 8 The cooling water control unit 1 based on this embodiment includes a housing 100, a valve unit 200, a cooling water pump unit 300, a drive motor unit 400, a control unit 500, and a controller housing 600. It also includes a cover 700 for covering one side of the controller housing 600.

[0052] The aforementioned housing 100 forms the overall shape of the cooling water control unit 1, and the aforementioned valve unit 200 is rotatably disposed inside the aforementioned housing 100 for changing the direction of cooling water delivery.

[0053] The valve unit 200 described above uses a 6-way valve as an example, but a 3-way valve or an 8-way valve can also be used. The valve unit 200 has multiple through holes formed in the circumferential direction to change the direction of cooling water delivery, and includes: a cylinder 202, having a rotating shaft that is axially coupled to the drive motor unit 400 described later; a first chamber 204, coupled to the outer side of the cylinder 202; a second chamber 206, disposed on the upper side of the cylinder 202; and a third chamber 208, disposed on the lower side of the cylinder 202.

[0054] The aforementioned cooling water pump unit 300 is combined with the aforementioned housing 100 and is provided for supplying cooling water to the electronic components of the environmentally friendly vehicle that require cooling water.

[0055] The drive motor unit 400 is provided to drive the valve unit 200, and the control unit 500 is provided to control the operation of the valve unit 200, the cooling water pump unit 300, and the drive motor unit 400.

[0056] The controller housing 600 houses the control unit 500 and has a cooling water inlet 610 through which cooling water flows in. Heat energy generated by the control unit 500 is transferred to the cooling water flowing in through the cooling water inlet 610 to form heat exchange, thereby cooling the control unit 500.

[0057] In particular, the controller housing 600 is cooled by air cooling with the outside air, and the low-temperature heat energy transferred by the low-temperature cooling water flowing in through the cooling water inlet 610 is exchanged with the high-temperature heat energy generated by the operation of the control unit 500 to achieve cooling. A more detailed explanation of this will be given later.

[0058] The aforementioned housing 100 further includes: a cooling water reservoir 110 for storing cooling water supplied to the aforementioned housing 100; and a cooling water outlet 120 for discharging the cooling water supplied through the aforementioned cooling water inlet 610 or the aforementioned cooling water reservoir 110.

[0059] The aforementioned housing 100 has a pump unit 300 integrally integrated on the left and right sides, based on the attached drawings, and is also integrated with the controller housing 600 and cover 700 described later. This enables a stable supply of cooling water while cooling the control unit 500 mounted on the controller housing 600.

[0060] The control unit 500 based on this embodiment is designed as a single component for control, which can control the valve unit 200, the cooling water pump unit 300 and the drive motor unit 400, thereby enabling convenient overall control.

[0061] In particular, even without installing controllers on the valve unit 200, the cooling water pump unit 300, and the drive motor unit 400 respectively, they can be controlled individually by the control unit 500, which can reduce manufacturing costs and improve control stability.

[0062] The control unit 500 described above, as an example, includes a PCB substrate on which multiple electronic components are mounted. These electronic components generate heat at a predetermined temperature during operation. When multiple electronic components generate heat simultaneously, the heat can reach high temperatures, therefore a cooling system must be provided.

[0063] In this embodiment, in order to cool the control unit 500, a heat transfer is performed on the controller housing 600 through which the high-temperature heat energy generated by the control unit 500 is transferred, so as to conduct and diffuse the heat energy generated by the electronic components, thereby preventing the control unit 500 from overheating and enabling stable operation.

[0064] The aforementioned control unit 500 can control the operation of the aforementioned valve unit 200, the aforementioned cooling water pump unit 300, and the drive motor unit 400 as a single component, thereby improving the efficiency of cooling water control and supply, and stably supplying cooling water to various electronic components of the environmentally friendly vehicle, thereby simultaneously improving fuel efficiency and operational stability.

[0065] Furthermore, when it is necessary to heat up the battery installed in an environmentally friendly vehicle, it can be controlled to supply cooling water that has been heated by exchanging heat energy with the high temperature generated by the control unit 500 to the battery module, thereby raising the temperature to a predetermined temperature.

[0066] The controller housing 600 is made of a different material than the housing 100. For example, to facilitate rapid heat transfer from the control unit 500, a material with high heat transfer efficiency is used. For instance, the controller housing 600 can be made of aluminum or other materials with high heat transfer efficiency.

[0067] Furthermore, the controller housing 600 can perform air-cooled heat dissipation with the surrounding air, exchanging the transferred heat with the air, thereby achieving cooling through air cooling. Therefore, the lower the air temperature, the higher the heat dissipation performance.

[0068] Reference Figure 6 The controller housing 600 has a controller housing 602 for housing the control unit 500. A heat transfer layer 604 is formed between the control unit 500 and the controller housing 602 to transfer the heat generated by the control unit 500 to the controller housing 602.

[0069] As an example, the heat transfer layer 604 can be applied to the inside of the controller housing 602 with a predetermined thickness using thermal conductive paste to maintain a close contact with the control unit 500.

[0070] The heat transfer layer 604 described above can be constructed in sheet form, in which case one or more thin films of heat transfer sheet can be laminated to maintain a close contact with the control unit 500. For reference, the position where the heat transfer layer 604 is in close contact with the control unit 500 is the opposite side of the upper surface on which the electronic components are mounted, i.e., the lower surface.

[0071] Reference Figures 7 to 11 The controller housing 602 is equivalent to a groove formed at a predetermined depth, and the control unit 500 is assembled in a state of being inserted into the controller housing 602.

[0072] In this embodiment, a heat transfer guide 606 is formed in order to rapidly conduct heat and stably dissipate heat from the control unit 500, and to give directionality to the heat generated by the control unit 500 when heat is transferred along the extension path of the cooling water inflow section 610.

[0073] That is, the heat transfer guide 606 is arranged at a position opposite to the cooling water inlet 610, so that the high temperature heat energy is concentrated in the heat transfer guide 606 which is in close contact with the control unit 500 and moves along the extension path of the heat transfer guide 606.

[0074] Furthermore, the low-temperature cooling water flowing into the cooling water inlet 610 forms a heat transfer with the heat energy concentrated in the heat transfer guide 606, thereby enabling rapid cooling of the control unit 500. It should be noted that heat transfer also occurs in other areas besides the heat transfer guide 606 through contact, and more of this heat is concentrated and moved towards the heat transfer guide 606.

[0075] The aforementioned heat transfer guiding section 606 is formed in the shape of a thin plate and extends for a predetermined length in the direction of the cooling water inflow section 610. The aforementioned heat transfer guiding section 606 first transfers the heat energy generated in the control unit 500, and then exchanges heat with the low-temperature cooling water supplied through the cooling water inflow section 610, thereby achieving rapid cooling, preventing malfunctions of multiple electronic components that generate high temperatures, and enabling the control unit 500 to operate stably.

[0076] In addition to the form shown in the attached figure, the heat transfer guide 606 can be changed to various other forms, and is not limited to the form shown in the attached figure.

[0077] Furthermore, the heat transfer guide 606 does not have to be limited to the configuration shown in the figure in order to overheat the electronic components that generate heat, and can also extend further from the edge of the controller housing 602.

[0078] Reference Figure 10 The heat transfer guide 606 based on this embodiment includes: a first heat transfer guide 606a formed on the inner bottom surface of the controller housing 602 with a predetermined length; and a second heat transfer guide 606b extending from the extended end of the first heat transfer guide 606a along the inner edge of the controller housing 602.

[0079] The first heat transfer guide 606a is preferably formed at the position closest to the cooling water inlet 610, but it can also be changed to a position different from that shown in the figure depending on the layout of the controller housing 602.

[0080] The second heat transfer guide 606b ensures that the heat energy transferred by the first heat transfer guide 606a does not concentrate at the location where multiple electronic components are arranged, but is guided along the inner edge of the controller housing 602 and then diffused. Therefore, it can minimize the environment where heat energy is concentrated at the location where multiple electronic components are arranged, thus preventing heat energy transfer and minimizing the rise to high temperature, and can implement stable heat conduction.

[0081] The second heat transfer guide 606b extends along the inner edge of the controller housing 602, but may also extend to a location other than that shown in the figure, depending on the layout.

[0082] The heat transfer guide 606 is formed in the controller housing 602 in either an embossed or recessed manner, but is not limited to a specific manner and can be modified in various ways.

[0083] See attached document Figure 11 The heat transfer guide 606 based on this embodiment includes a first heat transfer guide 606a and a third heat transfer guide 606c. As described above, the first heat transfer guide 606a is configured to extend to the inner bottom surface of the controller housing 602 with a predetermined length, and the third heat transfer guide 606c extends from the first heat transfer guide 606a to the inner side of the controller housing 602 with a predetermined length.

[0084] The third heat transfer guide 606c, as an example, is formed into a plate shape with a predetermined thickness, and can be inserted into the inner side of the aluminum controller housing 600. The third heat transfer guide 606c transfers the heat transferred from the first heat transfer guide 606a to one side of the controller housing 600, and more smoothly exchanges heat with the low-temperature cooling water flowing along the cooling water inlet 610, thereby achieving cooling of the control unit 500.

[0085] In this case, the heat generated by the control unit 500 can be dissipated rapidly by heat conduction based on the heat transfer guide 606, heat conduction based on the controller housing 600, and air cooling from the outside of the controller housing 600.

[0086] The aforementioned cooling water pump unit 300 includes: a first cooling water pump 310 for supplying cooling water to the electrical system unit of the environmentally friendly vehicle; and a second cooling water pump 320 for supplying cooling water to the battery unit of the aforementioned environmentally friendly vehicle or electronic components connected to the battery.

[0087] As an example, the first cooling water pump 310 is provided to supply cooling water to the electronic components in the electrical system of the environmentally friendly vehicle. As an example, by operating in a manner that pressurizes and supplies cooling water to the motor control controller of the environmentally friendly vehicle at a predetermined flow rate, the motor control controller can be cooled.

[0088] It should be noted that the above describes the case where the electronic component supplied with cooling water by the first cooling water pump 310 is a motor control controller, but it can also be supplied to other electronic components in the power system.

[0089] The aforementioned second cooling water pump 320 is installed to pressurize the cooling water required for cooling the batteries and electronic components of the environmentally friendly vehicle to a predetermined flow rate for cooling.

[0090] The first cooling water pump 310 and the second cooling water pump 320 described above are respectively configured to include a motor housing (not shown), a stator (not shown), a rotor (not shown), an impeller housing (not shown), and an impeller (not shown).

[0091] When viewed from the front, the first cooling water pump 310 is attached to the left side, and the second cooling water pump 320 is attached to the right side.

[0092] The aforementioned cooling water outlet 120 includes a first cooling water outlet 122 connected to the first cooling water pump 310 and a second cooling water outlet 124 connected to the aforementioned second cooling water pump 320.

[0093] The first cooling water outlet 122 is provided for supplying cooling water to the power system unit, and the second cooling water outlet 124 is provided for supplying cooling water to the battery unit or electronic components connected thereto.

[0094] The first and second cooling water outlets 122 and 124 mentioned above can be connected to hoses and other connecting components by clamps as a medium in order to allow cooling water to flow.

[0095] The cooling water storage unit 110 of this embodiment extends to a predetermined depth, and the internal space is defined by the partition wall 113, so that cooling water of different temperatures will not mix and can be stored and circulated separately.

[0096] As an example, the aforementioned cooling water reservoir 110 may not be a separate structure from the aforementioned shell 100, but may be integrally formed, thereby simplifying the components, facilitating assembly, and reducing manufacturing costs.

[0097] The aforementioned cooling water reservoir 110 extends with a predetermined diameter and length, and includes a first cooling water reservoir 112 for supplying cooling water to the aforementioned first cooling water pump 310 and a second cooling water reservoir 114 for supplying cooling water to the second cooling water pump 320.

[0098] The first and second cooling water reservoirs 112 and 114 mentioned above maintain a predetermined cooling water inflow state, thereby enabling the pump unit 300 to operate stably.

[0099] The cooling water inlet section 610 includes: a first cooling water inlet section 612, which is provided to supply low-temperature cooling water to the first cooling water pump 310 and to transfer heat with the heat generated by the control unit 500; and a second cooling water inlet section 614, which is provided to supply low-temperature cooling water to the second cooling water pump 320 and to transfer heat with the heat generated by the control unit 500.

[0100] The first and second cooling water inlet sections 612 and 614 are made of aluminum. When low-temperature cooling water flows in, it transfers low-temperature heat energy to the entire controller housing 600 and forms a heat exchange with the high-temperature heat energy transferred from the control unit 500.

[0101] This embodiment also includes a cover 700, which is combined with the controller housing 600 and houses the drive motor 400. The cover 700 seals one side of the control unit 500 housed in the controller housing 600.

[0102] The aforementioned housing 100 also includes a cooling water outlet 120, which discharges cooling water supplied through the aforementioned cooling water inlet 610 or the aforementioned cooling water reservoir 110. The aforementioned first cooling water outlet 122 is provided for discharging cooling water supplied to the first cooling water pump 310, and the second cooling water outlet 124 is provided for discharging cooling water supplied to the second cooling water pump 320.

[0103] Reference Figure 12 In this embodiment, the device operates in mode M1 in order to supply heated cooling water to the power system unit and the battery unit via the cooling water control unit.

[0104] In the first mode M1 described above, cooling water flows into the first and second cooling water storage tanks 112 and 114, and is then transported by the first and second cooling water pumps 310 and 320, and exits through the first and second cooling water outlets 122 and 124 (see attached diagram). Figure 3 Cooling water is supplied to the power system unit and battery unit respectively to achieve heating. It should be noted that the control unit 500 controls the drive motor unit 400 to rotate the valve unit 200 to the position corresponding to the first mode M1.

[0105] Reference Figure 13 In this embodiment, in order to supply heated cooling water to the power system unit and cold cooling water to the battery unit through the cooling water control unit, the system operates in mode M2.

[0106] In the second mode M2 ​​described above, the cooling water flowing in through the first cooling water inlet 612 is transported by the first cooling water pump 310 and discharged to the first cooling water outlet 122.

[0107] Furthermore, the cooling water flowing in through the second cooling water inlet 614 is transported by the second cooling water pump 320 and discharged to the second cooling water outlet 124, and then supplied to the battery unit for cooling.

[0108] Reference Figure 14 In this embodiment, the device can operate in mode 3 M3 in order to supply cooled water to the power system unit and low-temperature cooling water to the battery unit via the cooling water control unit.

[0109] Reference Figure 15 This embodiment also shows a fourth mode M4 state in which the cooling water control unit extracts the air remaining in the housing 100 and flows into the cooling water before initial drive.

[0110] The foregoing description illustrates one embodiment of the present invention. Those skilled in the art can make various modifications and alterations to the present invention without departing from the technical concept of the present invention as described in the claims by adding, changing, deleting, or supplementing constituent elements, and these modifications and alterations are also included within the scope of the claims of the present invention.

[0111] Industrial possibilities

[0112] This embodiment is a cooling water control unit that can stably supply cooling water to various electronic components in environmentally friendly vehicles for cooling purposes.

Claims

1. A cooling water control unit, comprising: The shell forms the overall shape; A valve unit, rotatably disposed inside the housing, is used to change the direction of cooling water delivery; A cooling water pump unit is attached to the housing. A drive motor is provided for driving the valve unit; The control unit is used to control the operation of the valve unit, the cooling water pump unit, and the drive motor unit; and The controller housing houses the control unit and includes a cooling water inlet. The heat generated by the control unit exchanges heat with the cooling water flowing through the inlet, thus cooling the control unit. The controller housing has a controller storage section for housing the control unit. The controller housing also includes a heat transfer guide, which imparts directionality to the heat energy generated by the control unit as it is transferred along the extended path of the cooling water inlet. The heat transfer guide is positioned opposite the cooling water inlet.

2. The cooling water control unit according to claim 1, wherein, The shell portion further includes: A cooling water reservoir for storing cooling water supplied to the housing; and The cooling water outlet is configured to discharge cooling water that has been supplied through the cooling water inlet or the cooling water reservoir.

3. The cooling water control unit according to claim 1, wherein, The controller housing and the shell portion are made of different materials.

4. The cooling water control unit according to claim 1, wherein, The controller housing is made of aluminum.

5. The cooling water control unit according to claim 1, wherein, The controller housing has a heat transfer layer formed between the control unit and the controller storage part to transfer the heat generated in the control unit to the controller storage part.

6. The cooling water control unit according to claim 1, wherein, The heat transfer guide is formed in the shape of a thin plate and extends a predetermined length from the inflow direction of the cooling water inlet.

7. The cooling water control unit according to claim 1, wherein, The heat transfer guide includes: A first heat transfer guide portion is formed on the inner bottom surface of the controller housing portion with a predetermined length; and The second heat transfer guide extends from the extended end of the first heat transfer guide along the inner edge of the controller housing.

8. The cooling water control unit according to claim 1, wherein, The heat transfer guide is formed in the controller housing in either an embossed or recessed manner.

9. The cooling water control unit according to claim 1, wherein, The cooling water pump unit includes: The first cooling water pump is installed to supply cooling water to the electrical system unit of the environmentally friendly vehicle; and The second cooling water pump is provided to supply cooling water to the battery cells or electronic components connected to the battery in the environmentally friendly vehicle.

10. The cooling water control unit according to claim 9, wherein, The cooling water inlet includes: The first cooling water inlet supplies low-temperature cooling water to the first cooling water pump while simultaneously transferring heat with the heat generated in the control unit; and The second cooling water inlet supplies low-temperature cooling water to the second cooling water pump while simultaneously transferring heat with the heat generated in the control unit.

11. The cooling water control unit according to claim 2, wherein, The cooling water storage tank has partitions that divide the internal space into independent spaces for storage.

12. The cooling water control unit according to claim 1, wherein, It also includes a cover that is combined with the controller housing to house the drive motor unit inside.

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