Integrated valve group, radiator assembly, lubricating and cooling system and wind generating set

Abstract

The utility model provides an integrated valve group, a radiator assembly, a lubricating and cooling system and a wind generating set, the integrated valve group is used for the radiator assembly, the radiator assembly further comprises a radiating core body and a bypass channel, the bypass channel is connected with a radiating channel in the radiating core body in parallel, and the integrated valve group is arranged at an inlet of the bypass channel; the integrated valve group comprises a temperature control valve group and a pressure valve group which are integrated into a whole, and an inner cavity of the temperature control valve group is communicated with an inner cavity of the pressure valve group. By integrating the temperature control valve group and the pressure valve group, the integrated valve group can be opened under the condition that at least one of the opening temperature condition of the temperature control valve group and the opening pressure condition of the pressure valve group is met, so that the overall opening condition of a single valve body is widened, the problem of oil trapping of a radiator assembly can be solved, and the damage risk is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of wind power generation, and more specifically, to an integrated valve assembly, a radiator assembly, a lubrication and cooling system, and a wind turbine generator set. Background Technology

[0002] Electricity, as a clean energy source, is being used more and more widely. In order to control costs, the gearbox cooling technology of wind turbine generators is shifting from the original water cooling technology to direct air cooling technology, and direct air cooling technology will become the future development trend for gearboxes.

[0003] Meanwhile, with the continuous increase in the power of onshore wind turbine generators, the operating temperature range of these units is becoming increasingly wider, reaching as low as -30°C. Therefore, the application of direct air-cooled gearbox technology must address the challenges of gearbox operation in low-temperature environments. The reliable operation of the gearbox cooling and lubrication system in low-temperature environments directly determines the power generation of the unit and the reliability of the gearbox, which is crucial for the safe operation of the unit.

[0004] Specifically, in low-temperature environments, if direct air cooling technology is used, the radiator will be located outdoors. After a period of downtime, the oil inside the radiator will solidify and block the heat dissipation channels. When restarted, the lubricating oil flowing into the radiator will not be able to flow out of the radiator for a short time, causing the system pipeline to be in a "trapped oil" state. The gearbox will not be lubricated and cooled by oil, which may lead to damage due to short-term overheating. Utility Model Content

[0005] Therefore, reducing radiator blockage in low-temperature environments is crucial for the safe operation of wind turbines.

[0006] In one general aspect, an integrated valve assembly is provided for use in a radiator assembly, the radiator assembly further including a heat sink core and a bypass channel, the bypass channel being connected in parallel with a heat sink channel within the heat sink core, the integrated valve assembly being disposed at the inlet of the bypass channel, the integrated valve assembly including an integrated temperature control valve assembly and a pressure valve assembly, the inner cavity of the temperature control valve assembly being connected to the inner cavity of the pressure valve assembly.

[0007] Optionally, the temperature control valve assembly and the pressure valve assembly each have an inlet, an outlet, and an internal cavity communicating between the inlet and the outlet. One of the inlet and outlet of the temperature control valve assembly is configured to be openable or closed, and the other of the inlet and outlet of the temperature control valve assembly is configured to remain open. Similarly, one of the inlet and outlet of the pressure valve assembly is configured to be openable or closed, and the other of the inlet and outlet of the pressure valve assembly is configured to remain open. One of the temperature control valve assembly and the pressure valve assembly has a communication port on its side wall communicating with the internal cavity of the corresponding valve assembly. This communication port is connected to the outlet of the other of the temperature control valve assembly and the pressure valve assembly.

[0008] Optionally, the temperature control valve group and the pressure valve group are arranged in parallel. Both the temperature control valve group and the pressure valve group are provided with intersecting axial channels and radial channels. One end of each radial channel is open as the outlet of the corresponding valve group. One of the temperature control valve group and the pressure valve group is a first valve group, and the other is a second valve group. The radial channel of the first valve group is a first radial channel that passes through the first valve group. The other end of the first radial channel is open as the communication port. The first radial channel is configured to remain unobstructed, and the outlet of the first valve group is configured to remain open so that the outlet of the second valve group is connected to the outlet of the first valve group through the first radial channel.

[0009] Optionally, the integrated valve assembly further includes: the temperature control valve assembly includes a valve body and a temperature sensing element, the valve body being configured to open when the temperature sensing element detects a temperature lower than a preset temperature; or the temperature control valve assembly includes a piston and a temperature-sensing deformation element, the piston being used to separate the inlet and outlet of the temperature control valve assembly, the temperature-sensing deformation element deforming when the temperature is lower than the preset temperature to drive the piston to move and connect the inlet and outlet of the temperature control valve assembly to achieve opening, the piston having a piston through hole connecting the inlet and outlet of the temperature control valve assembly.

[0010] Optionally, when the temperature control valve assembly includes a piston and a temperature-sensing deformation element, the ratio of the total cross-sectional area of ​​all piston through holes to the cross-sectional area of ​​the inlet of the temperature control valve assembly ranges from 3% to 5%.

[0011] Optionally, the integrated valve assembly further includes an inlet chamber, which is connected to both the inlet of the temperature control valve assembly and the inlet of the pressure valve assembly. The inlet chamber is also provided with an inlet interface as the inlet of the integrated valve assembly.

[0012] In another general aspect, a radiator assembly is provided, the radiator assembly comprising: a radiator core having a radiator channel within it; a bypass channel connected in parallel with the radiator channel; and an integrated valve assembly as described above, the integrated valve assembly being disposed at the inlet of the bypass channel.

[0013] In another general aspect, a lubrication cooling system is provided, the lubrication cooling system comprising: a lubrication pump connected to a lubricant pool for drawing lubricant to be cooled; and a radiator assembly as described above, the radiator assembly being connected to the outlet of the lubrication pump.

[0014] In another general aspect, a wind turbine generator set is provided, the wind turbine generator set comprising: a radiator assembly as described above; or a lubrication and cooling system as described above.

[0015] Optionally, the radiator assembly is disposed outside the wind turbine generator set.

[0016] In another general aspect, a wind farm is provided, which includes wind turbine generators as described above.

[0017] This disclosure proposes an integrated valve group, radiator assembly, lubrication and cooling system, and wind turbine generator set. By integrating the temperature control valve group and the pressure valve group into one unit, the integrated valve group can be opened when at least one of the opening temperature conditions of the temperature control valve group and the opening pressure conditions of the pressure valve group is met. This broadens the opening conditions of the individual valve body as a whole and can solve the "oil trapping" problem of the radiator assembly, reducing the risk of damage.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0019] The above and other objects and features of this utility model will become clearer from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram illustrating a lubrication and cooling system according to an embodiment of the present disclosure;

[0021] Figure 2 This is a schematic diagram illustrating the connection relationship of the heat sink assembly according to an embodiment of the present disclosure;

[0022] Figure 3 This is a longitudinal cross-sectional view showing a heat sink assembly according to an embodiment of the present disclosure;

[0023] Figure 4 This illustrates one embodiment according to the present disclosure. Figure 3A magnified view of part I;

[0024] Figure 5 This is a longitudinal cross-sectional view showing an integrated valve assembly according to an embodiment of the present disclosure with the pressure valve assembly open and the temperature control valve assembly closed.

[0025] Figure 6 This is a longitudinal cross-sectional view showing an integrated valve assembly according to an embodiment of the present disclosure with the pressure valve assembly closed and the temperature control valve assembly open.

[0026] Figure 7 This is a longitudinal cross-sectional view showing an integrated valve assembly according to another embodiment of the present disclosure with both the pressure valve assembly and the temperature control valve assembly closed;

[0027] Figure 8 This is a longitudinal cross-sectional view showing an integrated valve assembly according to another embodiment of the present disclosure with the pressure valve assembly open and the temperature control valve assembly closed.

[0028] Figure 9 This is a longitudinal cross-sectional view showing an integrated valve assembly according to another embodiment of the present disclosure with the pressure valve assembly closed and the temperature control valve assembly partially open;

[0029] Figure 10 This is a longitudinal cross-sectional view showing an integrated valve assembly according to another embodiment of the present disclosure with the pressure valve assembly closed and the temperature control valve assembly fully open;

[0030] Figure 11 This is a perspective view showing an integrated valve assembly in longitudinal cross-section according to another embodiment of the present disclosure;

[0031] Figure 12 This is a schematic diagram showing a partial structure of a heat dissipation core according to an embodiment of the present disclosure;

[0032] Figure 13 This is an exploded view showing a heat dissipation unit according to an embodiment of the present disclosure.

[0033] Figures 1 to 13 Explanation of icon numbers:

[0034] 1: Radiator assembly; 10: Integrated valve assembly; 11: Temperature control valve assembly; 111: Temperature control axial channel; 112: Temperature control radial channel; 113: Piston; 114: Temperature control through hole; 115: Piston through hole; 12: Pressure valve assembly; 121: Pressure axial channel; 122: Pressure radial channel; 123: Pressure valve core; 124: Pressure through hole; 13: Inlet chamber; 131: Inlet port; 20: Radiator core; 21: Baffle; 22: Fin; 23: Side strip; 30: Bypass channel; 40: Fluid inlet port; 50: Fluid outlet port; 2: Lubrication pump; 3: Lubricant tank; 4: Distributor; 5: Distribution temperature control valve; 6: Safety valve; 7: Exhaust valve; 8: Filter. Detailed Implementation

[0035] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but may be changed as will become clear upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.

[0036] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein, which will become clear upon understanding the disclosure of this application.

[0037] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.

[0038] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Thus, without departing from the teaching of the examples described herein, the first component, first assembly, first region, first layer, or first part referred to as the first component, first assembly, first region, first layer, or first part may also be referred to as the second component, second assembly, second region, second layer, or second part.

[0039] In the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.

[0040] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0041] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains upon understanding this disclosure. Unless expressly defined herein, terms (such as those defined in a general dictionary) shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and in this disclosure, and shall not be interpreted in an idealized or overly formalistic manner.

[0042] Furthermore, in the description of the examples, detailed descriptions of well-known related structures or functions will be omitted when it is believed that such detailed descriptions would lead to a vague interpretation of this disclosure.

[0043] The following will combine Figures 1 to 13 The present disclosure introduces an integrated valve group 10, a radiator assembly 1, a lubrication and cooling system, and a wind turbine generator set provided by embodiments of the present disclosure.

[0044] For ease of explanation, let's first combine... Figure 1 This disclosure introduces a lubrication and cooling system for a wind turbine generator set. The radiator assembly 1 provided in the embodiments of this disclosure can be applied to this system. This system can be, for example, a lubrication and cooling system for the gearbox of a wind turbine generator set, or an integrated lubrication and cooling system for the wind turbine generator set, or any other lubrication and cooling system; this disclosure does not limit the scope of the application.

[0045] like Figure 1As shown, the lubrication and cooling system includes a radiator assembly 1 (in related technologies, this is essentially just a separate radiator; in this disclosure, a radiator assembly 1 is formed by adding a bypass channel 30 to the radiator) and a lubrication pump 2, wherein the lubrication pump 2 is connected to a lubricant tank 3. The lubrication pump 2 is driven by a motor to draw lubricant (e.g., but not limited to lubricating oil) from the lubricant tank 3 and pump it to the radiator assembly 1, thereby achieving heat dissipation and cooling of the lubricant. The lubrication pump 2 provides power for the flow of lubricant throughout the system.

[0046] Regarding the lubricant pool 3, if the lubrication and cooling system is the gearbox lubrication and cooling system of the wind turbine generator set, then the lubricant pool 3 can be the lubricant pool 3 inside the gearbox. When the wind turbine generator set is also equipped with an auxiliary oil tank or a main oil tank independent of the gearbox, the lubricant pool 3 can also be the oil pool in the auxiliary oil tank or the main oil tank. In this case, the lubricant in the lubricant pool 3 will be supplied to the gearbox to achieve lubrication and cooling of the internal mechanisms of the gearbox. For other lubrication and cooling systems, the lubricant pool 3 may vary depending on the actual situation, and will not be listed here.

[0047] When a lubricated object (e.g., but not limited to a gearbox) has multiple lubrication points, such as Figure 1 As shown, the system may also include a distributor 4, which is connected to the outlet of the radiator assembly 1. The cooled lubricant flowing out of the radiator assembly 1 is distributed by the distributor 4 to different lubrication points, serving the functions of lubrication and cooling.

[0048] When the system starts up in a low-temperature environment, residual lubricant inside the radiator solidifies, blocking the heat dissipation channels. This prevents lubricant flowing into the radiator from flowing out for a short period, causing the system piping to be in a "trapped oil" state. One solution is to install a pressure relief channel in the radiator, connected in parallel with the heat dissipation channels. As the amount of lubricant flowing into the radiator gradually increases at the inlet of the blocked channel, the oil pressure rises and exceeds the pressure relief channel's opening pressure, allowing the lubricant to flow out through the channel, effectively returning the lubricant. However, in this case, it requires waiting for the lubricant to accumulate until the oil pressure exceeds the pressure relief channel's opening pressure, resulting in a longer startup cycle.

[0049] like Figure 1As shown, the system may also include a distribution temperature control valve 5 (used to distribute the amount of lubricant entering the radiator assembly 1; a temperature control valve is used as an example here, but a pressure valve can also be used). In this example, the distribution temperature control valve 5 is connected in parallel with the radiator assembly 1, and the opening degree of the distribution temperature control valve 5 can decrease as the lubricant temperature increases within a certain temperature range. When the lubricant in the radiator solidifies and becomes blocked in a low-temperature environment, the lubrication pump 2 of the lubrication cooling system starts. Since the distribution temperature control valve 5 is in a fully open state under certain preset low-temperature conditions, the pumped lubricant flows back directly to the lubricant pool 3 or back to each lubrication point via the distributor 4 through the channel of the distribution temperature control valve 5.

[0050] like Figure 1 As shown, the system may also include a safety valve 6, an exhaust valve 7, and a filter 8. The safety valve 6 is located at the outlet of the lubrication pump 2, with its other end connected to the lubricant reservoir 3. When the system pressure exceeds the opening pressure of the safety valve 6, the safety valve 6 opens, releasing pressure and returning oil to the lubricant reservoir 3. The exhaust valve 7 is connected to the lubricant reservoir 3 to balance the pressure inside the lubricant reservoir 3 and the external atmosphere. The filter 8 is located between the lubrication pump 2 and the distribution temperature control valve 5 to filter the lubricant flowing from the lubrication pump 2. Specifically, the filter 8 can be a double-precision filter.

[0051] In addition, the system may also include some in Figure 1 Components not shown. For example, the outlet of lubrication pump 2 is equipped with a check valve to prevent backflow of oil and reverse rotation of lubrication pump 2 when the system stops, which could damage the shaft seal. The oil inlet of lubricant tank 3 is equipped with a pressure detection device (pressure gauge or pressure sensor) to detect the lubricant pressure at the inlet. A pressure sensor can be installed at the outlet of lubrication pump 2 to detect the outlet pressure of lubrication pump 2. Differential pressure sensors are installed before and after filter 8. When the differential pressure exceeds a set value, the differential pressure sensor sends a signal to prompt the replacement of the filter element. A temperature sensor is installed in lubricant tank 3 to detect the lubricant temperature.

[0052] like Figures 2 to 4 As shown, one embodiment of this disclosure provides an integrated valve group 10 applied to a radiator assembly 1. The radiator assembly 1 further includes a heat dissipation core 20 and a bypass channel 30. The bypass channel 30 is connected in parallel with the heat dissipation channel in the heat dissipation core 20. The integrated valve group 10 is disposed at the inlet of the bypass channel 30. The integrated valve group 10 includes an integrated temperature control valve group 11 and a pressure valve group 12. The inner cavity of the temperature control valve group 11 is connected to the inner cavity of the pressure valve group 12.

[0053] According to the embodiments of the present disclosure, the integrated valve assembly 10, by integrating the temperature control valve assembly 11 and the pressure valve assembly 12 into one unit, can open the integrated valve assembly 10 when at least one of the opening temperature condition of the temperature control valve assembly 11 and the opening pressure condition of the pressure valve assembly 12 is met, thereby broadening the opening conditions of the individual valve body as a whole. At the same time, by integrating the temperature control valve assembly 11 and the pressure valve assembly 12 into one unit with their internal cavities connected, a simple integrated structure can be formed, which is convenient for installation.

[0054] Specifically, in low-temperature environments where the heat dissipation channels are blocked due to lubricant solidification, after the system starts supplying oil, the integrated valve assembly 10 can be quickly opened without waiting for the oil pressure at the valve body inlet to rise above the back pressure of the pressure valve assembly 12. This is achieved simply by meeting the opening temperature conditions of the temperature control valve assembly 11, thus opening the bypass channel 30 of the radiator assembly 1. This allows fluid (e.g., lubricant) to flow through the bypass channel 30, providing a necessary channel for lubricant return and simultaneously transferring heat from the lubricant flowing through the bypass channel 30 to the heat dissipation channels via thermal radiation, melting any solidified residual lubricant within the channels. This dual approach effectively solves the "oil trapping" problem in related technologies and reduces the risk of damage. The pressure valve assembly 12 can also allow lubricant to flow out through the bypass channel 30 when the system pressure is high, ensuring the safe operation of the radiator assembly 1. As an example, the integrated valve assembly 10 can be integrated onto the heat dissipation core 20 or connected to it via a compression fitting or flange; this disclosure does not impose any limitations on this.

[0055] Of course, the integrated valve assembly 10, as an independent unit, can also be applied to other industries and environments, which will not be listed here.

[0056] Optionally, the temperature control valve assembly 11 and the pressure valve assembly 12 each have an inlet, an outlet, and an inner cavity connecting the inlet and the outlet. For the same valve assembly (i.e., individually for the temperature control valve assembly 11 and individually for the pressure valve assembly 12), one of the inlet and outlet of the valve assembly is configured to be open or closed, and the other of the inlet and outlet of the valve assembly is configured to remain open, so that the valve assembly is opened or closed. The side wall of one of the temperature control valve assembly 11 and the pressure valve assembly 12 has a connecting port that connects to the inner cavity of the corresponding valve assembly, and the connecting port is connected to the outlet of the other of the temperature control valve assembly 11 and the pressure valve assembly 12. By providing a connecting port on the side wall of one of the temperature control valve group 11 and the pressure valve group 12 to connect to its own internal cavity, and connecting this connecting port to the outlet of the other of the temperature control valve group 11 and the pressure valve group 12, the internal cavities of the temperature control valve group 11 and the pressure valve group 12 can be connected through the connecting port of one valve group and the outlet of the other valve group. At this time, the improvement of the existing valve group structure mainly lies in adding a connecting port to one of the valve groups, so that the existing valve group structure can be used to realize the construction of the integrated valve group 10, effectively reducing the cost of structural improvement. Furthermore, the two valve groups are connected via a connecting port, forming a relationship similar to a series connection. This allows fluid flowing out of the valve group without a connecting port to first enter the inner cavity of the valve group with a connecting port, and then flow out from the outlet of the valve group with a connecting port. This means that when installing the integrated valve group 10 of the embodiments of this disclosure, the valve group without a connecting port can be installed on top, and the valve group with a connecting port can be installed on the bottom. This ensures that when the lower valve group is open and the upper valve group is closed, the fluid will not flow through the upper valve group, reducing the contact between the fluid and the upper valve group and meeting potential valve group maintenance needs.

[0057] Optionally, the temperature control valve assembly 11 and the pressure valve assembly 12 are arranged in parallel. Both the temperature control valve assembly 11 and the pressure valve assembly 12 are provided with intersecting axial and radial channels. One end of each radial channel is open as the outlet of the corresponding valve assembly. One of the temperature control valve assembly 11 and the pressure valve assembly 12 is defined as the first valve assembly, and the other as the second valve assembly. The radial channel of the first valve assembly is defined as the first radial channel, which passes through the first valve assembly. The other end of the first radial channel is open as a connection port. The first radial channel is configured to remain unobstructed, and the outlet of the first valve assembly is configured to remain open, so that the outlet of the second valve assembly is connected to the outlet of the first valve assembly via the first radial channel. By arranging the two valve assemblies with intersecting axial and radial channels in parallel—specifically, making the axes of the two valve assemblies parallel (it should be understood that "parallel" here refers to theoretical parallelism in structural design; in actual structures, due to limitations in manufacturing precision, a reasonable range of errors is allowed, and absolute parallelism is not required)—the radial channels of the two valve assemblies can also be made parallel, allowing the outlets of the two valve assemblies to have the same orientation. Based on this, one of the valve groups is designated as the first valve group, and a corresponding first radial channel is made to pass through the first valve group to form a communication port, connecting to the outlet of the second valve group. This allows the radial channels of the two parallel valve groups to be sequentially connected, thus forming a compact integrated structure. It should be understood that although the radial channels of the two valve groups are sequentially connected, their centerlines are not required to coincide, nor are their cross-sections required to be identical. Reliable connection between the two radial channels can be achieved by reasonably designing the cross-sectional shape and / or size of the radial channels. This disclosure does not limit the specific design form. Furthermore, this structure means that the outlet of the first valve group will serve as the outlet of the integrated valve group 10, and the outlet of the second valve group must be connected to the outlet of the first valve group via the first radial channel. By constructing the first radial channel to remain unobstructed and the outlet of the first valve group to remain open, the risk of fluid flowing from the second valve group being unable to flow out through the outlet of the first valve group due to blockage of the first radial channel or closure of the outlet of the first valve group can be reduced. This ensures that, under the condition that the opening conditions of the second valve group are met, the integrated valve group 10 as a whole can be in an open state, improving the operational reliability of the integrated valve group 10. It should be understood that the first radial channel is constructed to remain unobstructed, meaning that fluid can flow from the connection port to the outlet of the first valve assembly. It does not imply that there can be no obstructions within the first radial channel. In other words, even if an obstruction exists, as long as it does not completely isolate the fluid, preventing it from flowing from the connection port to the outlet of the first valve assembly, the first radial channel is considered unobstructed. For example, the valve core of the first valve assembly can move within its axial channel, potentially entering the first radial channel. However, this can be mitigated by structural design that ensures sufficient space for fluid passage regardless of the valve core's movement.

[0058] Optionally, such as Figure 4As shown, the integrated valve assembly 10 also includes an inlet chamber 13, which connects to both the inlet of the temperature control valve assembly 11 and the inlet of the pressure valve assembly 12. The inlet chamber 13 also has an inlet interface 131, serving as the inlet of the integrated valve assembly 10. While the temperature control valve assembly 11 and the pressure valve assembly 12 each have their own inlets, by providing the integrated valve assembly 10 with an inlet chamber 13 containing the inlet interface 131, simultaneously connecting the inlets of both the temperature control valve assembly 11 and the pressure valve assembly 12, the integrated valve assembly 10 can have a unified inlet. When assembling the integrated valve assembly 10, the inlet interface 131 can be directly installed without needing to install the interfaces of the two valve assemblies separately, thus improving the ease of assembly of the integrated valve assembly 10. As an example, the radiator assembly 1 also includes a fluid inlet interface 40 and a fluid outlet interface 50, with the inlet interface 131 used to connect to the fluid inlet interface 40.

[0059] Next, combine Figures 4 to 6 This disclosure introduces an integrated valve assembly 10 according to a specific embodiment.

[0060] In this specific embodiment, structurally, the temperature control valve assembly 11 is provided with intersecting temperature control axial channels 111 and temperature control radial channels 112. A temperature control inlet is provided on the side wall of the temperature control axial channel 111. Figures 4 to 6 The right side opening of the temperature control valve assembly 11 connects to the inlet chamber 13. One end of the temperature control radial channel 112 is open ( Figures 4 to 6 The left opening of the temperature control valve assembly 11 serves as the temperature control outlet. The temperature-sensing deformation element is connected to the piston 113 and deforms in response to temperature changes, thereby moving the piston 113 and causing the temperature control through-hole 114 on the piston 113 to move away from or closer to the temperature control radial channel 112. For example... Figure 4 and Figure 5 As shown, if the temperature control through-hole 114 is far from the temperature control radial channel 112, making them disconnected, then the temperature control inlet and outlet will also be disconnected, causing the temperature control valve assembly 11 to close. Figure 6 As shown, if the temperature control through-hole 114 is close to the temperature control radial channel 112, the two will be in a radial direction due to the temperature control valve assembly 11 ( Figures 4 to 6 If the temperature control inlet and outlet overlap and connect in the vertical direction, the temperature control valve assembly 11 will be interconnected, causing the temperature control valve assembly 11 to open. The closer the temperature control through-hole 114 is to the temperature control radial channel 112, the larger the overlap area between them, and the larger the opening of the temperature control valve assembly 11 will be. Of course, once the opening reaches its maximum, it cannot be increased further.

[0061] Pressure valve assembly 12 is provided with intersecting pressure axial channel 121 and pressure radial channel 122, one end of pressure axial channel 121 is open ( Figures 4 to 6The right end opening of the intermediate pressure valve assembly 12 serves as a pressure inlet and is connected to the inlet chamber 13. The pressure radial channel 122 penetrates the pressure valve assembly 12, and one end of the pressure radial channel 122 is open ( Figures 4 to 6 The lower end opening of the medium-pressure valve assembly 12 serves as the pressure outlet (and is also the outlet of the integrated valve assembly 10), and the other end opening of the pressure radial channel 122 ( Figures 4 to 6 The upper opening of the medium-pressure valve assembly 12 serves as a communication port. Specifically, the end of the pressure radial channel 122 facing the temperature control outlet is opened as a communication port, thereby connecting it to the temperature control outlet. The pressure valve core 123 can reciprocate within the pressure axial channel 121 to open or close the pressure valve assembly 12. Figure 4 and Figure 6 The diagram shows the pressure valve assembly 12 in the closed state, where the pressure valve core 123 of the pressure valve assembly 12 extends into the pressure axial channel 121 to close the pressure valve assembly 12. The portion of the pressure valve core 123 that extends into the pressure axial channel 121 is cylindrical with one open end. Specifically, the opening is located at the end facing the outside of the pressure valve assembly 12 and capable of extending into the pressure axial channel 121. Figures 4 to 6 At the right end of the cylinder, several pressure through holes 124 are provided on the side wall, allowing the pressure valve core 123 to... Figure 5 When the valve moves in the direction of the axial pressure channel 121 to the position where the pressure through-hole 124 and the pressure radial channel 122 are connected, the pressure inlet and pressure outlet are connected through the pressure through-hole 124, thereby opening the pressure valve assembly 12. It should be understood that... Figure 5 The diagram shows the pressure valve assembly 12 in a slightly open state. As the pressure at the pressure inlet continues to increase, the pressure valve core 123 will be subjected to pressure and continue to move to the left, thereby increasing the opening of the pressure valve assembly 12.

[0062] Of course, in other examples, the end of the pressure valve core 123 may not have an opening, and the pressure valve assembly 12 can only be opened after it is completely withdrawn from the pressure axial channel 121. This is also an implementation of this disclosure.

[0063] From the perspective of the flow path under different open and closed states, such as Figure 4 As shown, at this time, both the temperature control valve group 11 and the pressure valve group 12 are in the closed state. If the heat dissipation channel of the radiator assembly 1 is not blocked, the lubricant will enter the heat dissipation channel in the heat dissipation core 20 along the direction of the dashed arrow and enter the bypass channel 30 without passing through the integrated valve group 10.

[0064] like Figure 5 As shown, at this time, the temperature control valve assembly 11 is in the closed state, the pressure valve assembly 12 is in the slightly open state, and the pressure valve core 123 is controlled by an elastic element (e.g., Figure 5 The spring shown in the figure, along with the pressure valve core 123, is in an uncut state. Figure 4and Figure 6 Similarly, the pressure valve core 123 is connected to the fixed structure of the pressure valve assembly 12. Under pressure, the pressure valve core 123 slightly retracts from the pressure axial channel 121, allowing the pressure through-hole 124 to connect with the pressure radial channel 122 through the inner cavity. Fluid (including but not limited to lubricant) can enter from the opening at the right end of the pressure valve core 123, then enter the pressure radial channel 122 through the pressure through-hole 124, and finally flow out from the opening at the lower end of the pressure radial channel 122 (i.e., the pressure outlet). It should be noted that... Figure 5 Only the integrated valve assembly 10 was shown, therefore it was not displayed. Figure 4 The middle arrow points to the dashed arrow indicating the heat dissipation channel. Figure 6 The same principle applies.

[0065] like Figure 6 As shown, at this time, the temperature control valve assembly 11 is in the fully open state, the pressure valve assembly 12 is in the closed state, and the pressure valve core 123 and the elastic element are as follows: Figure 6 The pressure radial channel 122 is not blocked, keeping it unobstructed while the pressure outlet remains open, allowing fluid flowing from the temperature control valve assembly 11 to continue flowing out through the pressure outlet. In embodiments where the pressure valve core 123 might block the pressure radial channel 122, a through-hole can be provided in the portion of the pressure valve core 123 that blocks the pressure radial channel 122. This through-hole is used to keep the pressure radial channel 122 unobstructed, similar to the pressure through-hole 124. Figure 6 Based on this, pressure valve assembly 12 may be further opened. When in such a state... Figure 5 In the slightly open state shown, the elastic element of the pressure valve assembly 12 and the pressure valve core 123 will not block the pressure radial channel 122. As the opening of the pressure valve assembly 12 increases, although the portion of the pressure valve core 123 entering the pressure radial channel 122 will increase, the pressure radial channel 122 will still remain unobstructed due to the pressure through-hole 124 or other similar structure provided in the pressure valve core 123. At this time, the fluid will simultaneously flow along the radial channel 122. Figure 5 and Figure 6 The dashed arrow indicates the direction of flow.

[0066] Next, combine Figures 7 to 10 This disclosure introduces an integrated valve assembly 10 according to another specific embodiment.

[0067] In this specific embodiment, structurally, the pressure valve assembly 12 is provided with intersecting axial pressure channels 121 and radial pressure channels 122, with one end of the axial pressure channel 121 open. Figures 7 to 10 The left end opening of the medium pressure valve assembly 12 serves as a pressure inlet and is connected to the inlet chamber 13. One end of the pressure radial channel 122 is open ( Figures 7 to 10The lower end opening of the intermediate pressure valve assembly 12 serves as the pressure outlet. The pressure valve core 123 can reciprocate within the pressure axial channel 121 to open or close the pressure valve assembly 12. Figure 7 , Figure 9 and Figure 10 The diagram shows the pressure valve assembly 12 in the closed state, where the pressure valve core 123 of the pressure valve assembly 12 extends into the pressure axial channel 121 to close the pressure valve assembly 12. The portion of the pressure valve core 123 that extends into the pressure axial channel 121 is cylindrical with one open end. Specifically, the opening is located at the end facing the outside of the pressure valve assembly 12 and capable of extending into the pressure axial channel 121. Figures 7 to 10 At the left end of the cylinder, several pressure through holes 124 are provided on the side wall, so that the pressure valve core 123 can be used as follows: Figure 8 When the valve moves in the direction of the axial pressure channel 121 to the position where the pressure through-hole 124 and the pressure radial channel 122 are connected, the pressure inlet and pressure outlet are connected through the pressure through-hole 124, thereby opening the pressure valve assembly 12. It should be understood that... Figure 8 The diagram shows the pressure valve assembly 12 in a slightly open state. As the pressure at the pressure inlet continues to increase, the pressure valve core 123 will be subjected to pressure and continue to move to the left, thereby increasing the opening of the pressure valve assembly 12.

[0068] Of course, in other examples, the end of the pressure valve core 123 may not have an opening, and the pressure valve assembly 12 can only be opened after it is completely withdrawn from the pressure axial channel 121. This is also an implementation of this disclosure.

[0069] The temperature control valve assembly 11 has intersecting temperature control axial channels 111 and temperature control radial channels 112. A temperature control inlet is provided on the side wall of the temperature control axial channel 111. Figures 7 to 10 The left side opening of the temperature control valve assembly 11 is connected to the inlet chamber 13. The temperature control radial channel 112 passes through the temperature control valve assembly 11, with one end of the temperature control radial channel 112 not connected to the temperature control axial channel 111 (…). Figures 7 to 10 The lower right end opening of the temperature control valve assembly 11 serves as the temperature control outlet (which is also the outlet of the integrated valve assembly 10). The other end opening of the temperature control radial channel 112, which is not connected to the temperature control axial channel 111, is... Figures 7 to 10 The upper right opening of the temperature control valve assembly 11 serves as a communication port; specifically, the end of the temperature control radial channel 112 facing the pressure outlet is opened as a communication port, thus connecting it to the pressure outlet. The temperature-sensing deformation element is connected to the piston 113 and can deform under temperature influence, thereby moving the piston 113 and causing the temperature control through-hole 114 on the piston 113 to move away from or closer to the temperature control inlet. For example... Figure 7 and Figure 8As shown, if the temperature control through-hole 114 is far from the temperature control inlet, making them disconnected, then the temperature control inlet and outlet will also be disconnected, causing the temperature control valve assembly 11 to close. Figure 9 As shown, if the temperature control through-hole 114 is close to the temperature control radial channel 112, the two will be in a radial direction due to the temperature control valve assembly 11 ( Figures 7 to 10 If the temperature control inlet and outlet overlap and are connected in the vertical direction, then the temperature control valve assembly 11 will be interconnected, causing the temperature control valve assembly 11 to open, and as... Figure 10 As shown, the closer the temperature control through-hole 114 is to the temperature control radial channel 112, the larger the overlap area between them, and the larger the opening of the temperature control valve assembly 11 becomes. Of course, once the opening reaches its maximum, it cannot be increased further.

[0070] From the perspective of the flow path under different open and closed states, such as Figure 7 As shown, at this time, both the temperature control valve group 11 and the pressure valve group 12 are in the closed state, and the fluid does not flow through the integrated valve group 10.

[0071] like Figure 8 As shown, at this time, the temperature control valve assembly 11 is in the closed state, the pressure valve assembly 12 is in the slightly open state, and the pressure valve core 123 is controlled by an elastic element (e.g., Figure 8 The spring shown is connected to the fixed structure of the pressure valve assembly 12. Under pressure, the pressure valve core 123 slightly retracts to the right from the pressure axial channel 121, so that the pressure through hole 124 is connected to the pressure radial channel 122 through the inner cavity. Fluid can enter from the opening at the left end of the pressure valve core 123, then enter the inner cavity and the pressure radial channel 122 through the pressure through hole 124, and then flow into the temperature control radial channel 112 from the opening at the lower end of the pressure radial channel 122 (i.e., the pressure outlet). The piston 113 does not block the temperature control radial channel 112, so that the temperature control radial channel 112 remains unobstructed, and the temperature control outlet remains open, so that the fluid flowing out of the pressure valve assembly 12 can continue to flow out through the temperature control outlet.

[0072] like Figure 9 As shown, at this time, pressure valve assembly 12 is in the closed state, and temperature control valve assembly 11 is in the half-open state. Figure 10 As shown, at this time, pressure valve assembly 12 is in the closed state, and temperature control valve assembly 11 is in the fully open state. Figure 9 and Figure 10 Based on this, pressure valve assembly 12 may be further opened, at which point the fluid will simultaneously flow along... Figures 8 to 10 The dashed arrow indicates the direction of flow.

[0073] Regarding the functional implementation of the temperature control valve assembly 11, in some examples, it can be based on an electric temperature control valve. The electric temperature control valve includes a valve body, a temperature sensing element, and a controller. The controller can receive the temperature detected by the temperature sensing element and control the opening degree of the valve body according to the detected temperature. Optionally, the temperature control valve assembly 11 includes a valve body and a temperature sensing element. The valve body is configured to open when the temperature detected by the temperature sensing element is lower than a preset temperature. The function of the temperature control valve assembly 11 can be implemented using an existing electric temperature control valve. In this case, the valve body and temperature sensing element of the electric temperature control valve can be placed within the temperature control valve assembly 11, and the controller can be placed outside the integrated valve assembly 10. Of course, the controller can also be placed within the integrated valve assembly 10, which is also an implementation method of this disclosure.

[0074] In other examples, a temperature control valve containing a temperature-sensitive deformation element can be used. Alternatively, such as Figure 11 As shown, the temperature control valve assembly 11 includes a piston 113 and a temperature-sensing deformation element. The piston 113 separates the inlet and outlet of the temperature control valve assembly 11. When the temperature is lower than a preset temperature, the temperature-sensing deformation element deforms to move the piston 113 and connect the inlet and outlet of the temperature control valve assembly 11 to achieve opening. The piston 113 has a piston through hole 115, which connects the inlet and outlet of the temperature control valve assembly 11. By selecting the piston 113 and the temperature-sensing deformation element in the temperature control valve, the opening of the temperature control valve assembly 11 can be directly achieved by utilizing the deformation characteristics of the temperature-sensing deformation element, resulting in a simple and reliable structure. Specifically, piston 113 separates the inlet and outlet of temperature control valve assembly 11. A temperature-sensing deformation element and an elastic element are respectively disposed on both sides of the piston. When the temperature-sensing deformation element comes into contact with the flowing fluid, it deforms and resists the elastic thrust of the elastic element. The combined force of the two forces drives the piston to move, thereby connecting or disconnecting the inlet and outlet, and opening or closing the temperature control valve assembly 11. Specific implementation methods include, for example, opening the aforementioned temperature control through-hole 114 on the cylindrical sidewall of piston 113, or designing the piston shape and the positions of the inlet and outlet accordingly. This disclosure does not limit this. As an example, the deformation of the temperature-sensing deformation element can be caused by the expansion or compression of the temperature-sensing liquid filled in the temperature control valve assembly 11. This technology is existing in the field and will not be elaborated upon here.

[0075] For example, it can be like Figure 11 As shown, a temperature-sensing deformation element is provided on the left side of piston 113 (i.e., the side connected to the inlet), and a spring is provided on the right side of piston 113 (i.e., the side connected to the outlet) as an elastic element. A temperature control through hole 114 is provided on the cylindrical sidewall of piston 113. Figure 7As shown, when fluid flows into the inlet of the thermostatic valve assembly 11 along the direction of the dashed arrow and contacts the temperature-sensing deformation element on the left side of the piston 113, the temperature-sensing deformation element will deform based on the fluid temperature. If the thrust generated by the deformation is greater than the spring thrust, the piston 113 will move to the right to close the thermostatic valve assembly 11; if the thrust generated by the deformation is less than the spring thrust, then... Figure 9 and Figure 10 As shown, piston 113 moves to the left to open thermostatic valve assembly 11. With this structure, if fluid concentrates at the inlet of thermostatic valve assembly 11, it may exert significant pressure on the side of piston 113 facing the inlet, thus affecting the normal movement of piston 113 under the action of the temperature-sensing deformation element. Therefore, by providing a piston through-hole 115 connecting the inlet and outlet of piston 113, a small amount of fluid can be allowed to enter the thermostatic valve assembly 11. This ensures that the fluid exerts essentially the same pressure on both sides of piston 113, helping to guarantee the normal movement of piston 113 under the action of the temperature-sensing deformation element. Furthermore, the cross-sectional area of ​​the through-hole 115 is much smaller than the cross-sectional area of ​​the opening, meaning the cross-sectional area of ​​the piston through-hole 115 is much smaller than the cross-sectional area of ​​the inlet of thermostatic valve assembly 11, reducing the risk of thermostatic valve assembly 11 being continuously open and improving the operational reliability of thermostatic valve assembly 11.

[0076] For example, it can be like Figure 6 As shown, a temperature-sensing deformation element is installed on the left side of piston 113 (i.e., the side connected to the outlet), and a spring is installed on the right side of piston 113 (i.e., the side connected to the inlet) as an elastic element. A temperature control through hole 114 is provided on the cylindrical sidewall of piston 113. At this time, as... Figure 6 The piston 113 shown also needs to be set as follows Figure 11 The piston through-hole 115 shown allows fluid entering through the right-side inlet to reach the left side of the piston 113 via the piston through-hole 115, thereby contacting the temperature-sensing deformation element and ensuring... Figure 6 The thermostatic valve assembly 11 shown can reliably open and close. Of course, at this time, the piston through hole 115 can also play a role in balancing the pressure on both sides of the piston 113 and reducing the risk of the thermostatic valve assembly 11 remaining open.

[0077] In some of the aforementioned examples, optionally, the ratio of the total cross-sectional area of ​​all piston through-holes 115 to the cross-sectional area of ​​the inlet of the thermostatic valve assembly 11 ranges from 3% to 5%. By limiting this range, the size of the piston through-holes 115 can be determined with reference to the size of the inlet of the thermostatic valve assembly 11. This helps to ensure that substantially the same pressure is generated on both sides of the piston 113, and effectively reduces the risk of the thermostatic valve assembly 11 remaining open, further improving the operational reliability of the thermostatic valve assembly 11. It should be understood that the cross-sectional area of ​​a single piston through-hole 115 and the number of piston through-holes 115 can be flexibly set as needed, and this disclosure does not impose any limitations on this.

[0078] It should be understood that, in either of the above examples, by using an electric thermostatic valve or a thermostatic valve that opens at temperatures below a preset temperature, the bypass channel 30 of the radiator assembly 1 can be reliably opened in low-temperature environments. Furthermore, by appropriately selecting the opening temperature of the electric thermostatic valve or thermostatic valve, i.e., the preset temperature, the opening temperature conditions of the integrated valve group 10 can be adjusted according to actual needs, ensuring reliable start-up and stable operation of the radiator assembly 1 in low-temperature environments. As an example, the preset temperature ranges from 6°C to 30°C, for example, it could be 6°C, 15°C, or 20°C.

[0079] Regarding the operating temperature of the thermostatic valve assembly 11, optionally, the preset temperature includes a higher first preset temperature and a lower second preset temperature. The thermostatic valve assembly 11 is configured to close when the temperature is higher than the first preset temperature; open when the temperature is lower than or equal to the first preset temperature; and when the temperature is lower than the first preset temperature but higher than the second preset temperature, the opening degree of the thermostatic valve assembly 11 increases as the temperature decreases; and when the temperature is lower than or equal to the second preset temperature, the thermostatic valve assembly 11 is fully open. By making the opening degree of the thermostatic valve assembly 11 increase as the temperature decreases and decrease as the temperature increases within the range of the second preset temperature to the first preset temperature, for the radiator assembly, the thermostatic valve assembly 11 can be gradually closed as the lubricant temperature rises, allowing the lubricant to gradually flow into the heat dissipation channel, thus realizing the transition from the start-up phase to the normal operating phase. Furthermore, in cases of extremely low ambient temperatures (e.g., below -30°C), the lubricant will also dissipate some heat due to thermal conduction when entering the radiator assembly 1. If the lubricant temperature drops below the first preset temperature, the temperature control valve group 11 can be partially open, thereby reducing the overall heat exchange of the radiator assembly 1. Moreover, the lower the ambient temperature, the larger the opening of the temperature control valve group 11, which can adapt to changes in ambient temperature and the heat exchange between the lubricant and the radiator assembly 1. This effectively reduces the risk of the radiator assembly 1 freezing in low-temperature environments without affecting the heat dissipation and cooling effect, ensuring the working stability and reliability of the radiator assembly 1 in low-temperature environments.

[0080] In addition, as long as the temperature of the lubricant flowing into the temperature control valve group 11 is lower than or equal to the second preset temperature, the temperature control valve group 11 will be fully opened, that is, the opening degree will reach the maximum. During the start-up phase of the radiator assembly 1, a large amount of lubricant can flow through the bypass channel 30 to realize the return of lubricant and the melting of the solidified residual lubricant in the heat dissipation channel. During the low-temperature operation of the lubrication and cooling system, the risk of the radiator assembly 1 being frozen is reduced.

[0081] Another embodiment of this disclosure provides a radiator assembly 1, which includes: a heat dissipation core 20, with heat dissipation channels within the heat dissipation core 20; a bypass channel 30 connected in parallel with the heat dissipation channels; and an integrated valve assembly 10 as described above, disposed at the inlet of the bypass channel 30. The radiator assembly 1 includes the integrated valve assembly 10 as described above, and therefore possesses all the beneficial technical effects of the integrated valve assembly 10, which will not be elaborated further here. It should be understood that the number of heat dissipation channels is at least one, and the cross-sectional area of ​​each heat dissipation channel is smaller than the cross-sectional area of ​​the bypass channel 30. For example, the cross-sectional area of ​​the bypass channel 30 is made several tens of times larger than the cross-sectional area of ​​each heat dissipation channel, providing a sufficiently large flow channel for the lubricant flowing into the radiator assembly 1 to pass through, ensuring reliable lubricant return. Because the cross-sectional area of ​​the bypass channel 30 is large, the bypass channel 30 is not easily blocked even during shutdown, and can reliably return lubricant and melt any solidified residual lubricant in the heat dissipation channels during startup. It should also be understood that the specific shape and location of the bypass channel 30 can be designed as needed, and this disclosure does not impose any restrictions on it.

[0082] It should be noted that the heat dissipation channels are very small channels. Figure 3 For clearer display, part of the heat sink core 20 has been removed. Figure 3 The mark 20 in the text actually indicates the location of the heat dissipation core 20, not the structure of the heat dissipation core 20 itself. Regarding the specific structure of the heat dissipation channel, taking a plate-fin radiator as an example, a plate-fin radiator consists of several heat dissipation units, such as... Figure 12 The materials are stacked in alternating directions as shown to form a heat dissipation core 20. Figure 13 An exploded view of a heat dissipation unit is shown. The heat dissipation unit includes two upper and lower partitions 21, a middle fin 22, and two side strips 23. Together, they form several heat dissipation channels. Figure 13 The hollow arrows indicate the direction in which the fluid (in embodiments of this disclosure, the fluid is a lubricant) flows. Figure 12 The height H and width B of the heat dissipation channel are shown. In embodiments of this disclosure, the height H can be less than 3 mm, therefore the cross-sectional area of ​​the heat dissipation channel is slightly smaller than H. 2 It is less than 9mm 2 Width B corresponds to Figure 3 The width B, perpendicular to the paper surface, is typically close to 100mm. This width B is also the width of the bypass channel 30, which, when positioned on one side of the heat sink core 20, extends along... Figure 3The bypass channel 30 runs vertically through the system. On the one hand, the cross-sectional area of ​​the bypass channel 30 is much larger than that of the heat dissipation channel. Even if residual lubricant exists and solidifies during low-temperature shutdown, it only increases flow resistance and does not cause channel blockage, thus allowing lubricant to pass through during low-temperature startup. On the other hand, it is much smaller than the cross-sectional areas of the fluid inlet port 40, the fluid outlet port 50, and the system piping, thus achieving a heat dissipation function.

[0083] The following describes a heat sink assembly 1 according to a specific embodiment of this disclosure. The heat sink assembly 1 is as follows... Figures 2 to 4 As shown, the heat sink core 20 and the integrated valve assembly 10 are integrated into one unit. The temperature control valve assembly 11 in the integrated valve assembly 10 corresponds to a first preset temperature of 30℃ and a second preset temperature of 6℃. This heat sink assembly 1 combines the temperature and viscosity of the lubricant with the structural characteristics of the heat sink core 20, enabling the heat sink assembly 1 to quickly start up under low-temperature conditions of -30℃ and meet the rated heat dissipation requirements under high-temperature conditions of 40℃. The adaptability of the heat sink assembly 1 is significantly increased (conventional heat sinks can only meet the requirement of starting up in more than 30 minutes under conditions of -15℃). The start-up process of the lubrication and cooling system using this example heat sink assembly 1 under low-temperature conditions is as follows:

[0084] 1. Initially, the temperature of the lubricant entering the radiator assembly 1 is less than 6°C. The lubricant in the radiator core 20 is not flowing, the pressure valve assembly 12 is blocked and closed, and the temperature control valve assembly 11 is normally open. After the system supplies lubricant, the system pressure gradually rises and overcomes the oil circuit resistance of the bypass channel 30. The lubricant flows out of the bypass channel 30 through the temperature control valve assembly 11. At this time, although the temperature of the lubricant in the bypass channel 30 is less than 6°C, it is still higher than the temperature of the residual lubricant in the heat dissipation channel. Therefore, the lubricant flowing through the bypass channel 30 exchanges heat with the residual lubricant in the heat dissipation channel, and the residual lubricant in the heat dissipation channel gradually begins to melt.

[0085] 2. As the remaining lubricant melts and circulates within the system, the system temperature gradually increases. The temperature of the lubricant entering the radiator assembly 1 also gradually rises to between 6°C and 30°C, causing the temperature control valve assembly 11 to be in a half-open state. At this time, part of the lubricant flows through the bypass channel 30, and the other part flows through the heat dissipation channel. The lubricant temperature in the system rises rapidly and continuously, allowing the lubricant temperature of the components to be lubricated to quickly reach a reasonable range, ensuring the operation of the components to be lubricated.

[0086] 3. When the temperature of the lubricant entering the radiator assembly 1 further rises to above 30°C, the temperature control valve group 11 is completely closed, and the lubricant flows out through the heat dissipation channel. When the resistance of the heat dissipation channel is large and exceeds the starting pressure of the pressure valve group 12, the pressure valve group 12 opens. Under the high pressure at the inlet of the heat dissipation channel and the pressure valve group 12, the lubricant flows together in the bypass channel 30 at the outlet of the pressure valve group 12. As the lubricant temperature rises, the pressure valve group 12 closes due to the decrease in front-end pressure, and the lubricant circulates and dissipates heat through the heat dissipation channel.

[0087] like Figure 1 As shown, another embodiment of this disclosure provides a lubrication cooling system, which includes a lubrication pump 2 and a radiator assembly 1 as described above. The lubrication pump 2 is connected to a lubricant tank 3 and is used to draw lubricant to be cooled; the radiator assembly 1 is connected to the outlet of the lubrication pump 2. This lubrication cooling system includes the radiator assembly 1 as described above, and therefore possesses all the beneficial technical effects of the radiator assembly 1, which will not be repeated here. Other structures in the lubrication cooling system can be referred to the foregoing description, and will also not be repeated here.

[0088] Another embodiment of this disclosure provides a wind turbine generator set, which includes the radiator assembly 1 as described above or the lubrication and cooling system as described above, and thus possesses all the beneficial technical effects of the radiator assembly 1 or the lubrication and cooling system, which will not be repeated here. The connection relationship between the radiator assembly 1 and the lubrication and cooling system and the parts to be lubricated is described above in conjunction with the preceding text. Figure 1 The details of the wind turbine generator set will not be repeated here. As an example, the wind turbine generator set may also include a rotor, a gearbox, and a generator. The rotor includes a main shaft and blades connected together; the input shaft of the gearbox is connected to the main shaft; and the generator is connected to the output shaft of the gearbox. The radiator assembly 1 is used, for example but not limited to, for cooling the lubricant inside the gearbox. The above-mentioned technical effects are particularly evident when the radiator assembly 1 is located outside the wind turbine generator set, such as outside the nacelle, outside the tower, or outside the hub.

[0089] Another embodiment of this disclosure provides a wind farm that includes the wind turbine generator set as described above, and thus possesses all the beneficial technical effects of the wind turbine generator set, which will not be repeated here.

[0090] The specific embodiments of this disclosure have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that modifications and variations can be made to these embodiments without departing from the principles and spirit of this disclosure, which are defined by the claims and their equivalents. Such modifications and variations should also be within the protection scope of the claims of this disclosure.

Claims

1. An integrated valve block (10) characterized by, The integrated valve group (10) is applied to a radiator assembly (1) including a radiator core (20) and a bypass passage (30) parallel to the radiator passage in the radiator core (20), and is arranged at the inlet of the bypass passage (30), The integrated valve group (10) includes an integrated temperature control valve group (11) and a pressure valve group (12), and the inner cavity of the temperature control valve group (11) is communicated with the inner cavity of the pressure valve group (12).

2. The integrated valve group (10) according to claim 1, wherein The temperature control valve group (11) and the pressure valve group (12) are each provided with an inlet, an outlet and an inner cavity communicated between the inlet and the outlet, one of the inlet and the outlet of the temperature control valve group (11) is configured to be openable or closable, the other of the inlet and the outlet of the temperature control valve group (11) is configured to be kept open, one of the inlet and the outlet of the pressure valve group (12) is configured to be openable or closable, the other of the inlet and the outlet of the pressure valve group (12) is configured to be kept open, The side wall of one of the temperature control valve group (11) and the pressure valve group (12) is provided with a communication port communicating the inner cavities of the corresponding valve group, and the communication port is communicated with the outlet of the other of the temperature control valve group (11) and the pressure valve group (12).

3. The integrated valve group (10) according to claim 2, wherein The temperature control valve group (11) and the pressure valve group (12) are arranged in parallel, and each of the temperature control valve group (11) and the pressure valve group (12) is provided with an axial passage and a radial passage intersecting with each other, and one end of each radial passage is opened as an outlet of the corresponding valve group, One of the temperature control valve group (11) and the pressure valve group (12) is a first valve group, and the other is a second valve group, the radial passage of the first valve group is a first radial passage, The first radial passage penetrates through the first valve group, the other end of the first radial passage is opened as the communication port, the first radial passage is configured to be kept unblocked, and the outlet of the first valve group is configured to be kept open, so that the outlet of the second valve group is communicated with the outlet of the first valve group through the first radial passage.

4. The integrated valve group (10) according to any one of claims 1 to 3, wherein The temperature control valve group (11) includes a valve body and a temperature sensing element, and the valve body is configured to be opened when the temperature sensing element detects that the temperature is lower than a preset temperature; or The temperature control valve group (11) includes a piston (113) and a temperature sensing deformation element, the piston (113) is used to separate the inlet and the outlet of the temperature control valve group (11), the temperature sensing deformation element deforms to drive the piston (113) to move and connect the inlet and the outlet of the temperature control valve group (11) to achieve opening when the temperature is lower than a preset temperature, and the piston (113) is provided with a piston through hole (115) communicating the inlet and the outlet of the temperature control valve group (11).

5. The integrated valve group (10) according to claim 4, characterized in that, In the case that the temperature control valve group (11) comprises a piston (113) and a temperature-sensitive deformation element, the ratio of the sum of the cross-sectional areas of all piston through-holes (115) of the piston to the cross-sectional area of the inlet of the temperature control valve group (11) is in the range of 3% to 5%.

6. The integrated valve block (10) according to any one of claims 1 to 3, characterized in that The integrated valve group (10) further comprises: an inflow chamber (13) which is in communication with the inlet of the temperature control valve group (11) and the inlet of the pressure valve group (12), and which is further provided with an inflow interface (131) as the inlet of the integrated valve group (10).

7. A heat spreader assembly, comprising: The radiator assembly (1) comprises: a radiator core (20) in which a radiator channel is arranged; a bypass channel (30) which is in parallel with the radiator channel; The integrated valve group (10) according to any one of claims 1 to 6 is arranged at the inlet of the bypass channel (30).

8. A lubrication cooling system characterized by, The lubrication cooling system comprises: a lubrication pump (2) which is in communication with a lubricant pool (3) and is used to pump lubricant to be cooled; The radiator assembly (1) according to claim 7 is in communication with the outlet of the lubrication pump (2).

9. A wind power unit, characterized in that The wind turbine generator set comprises: The radiator assembly (1) according to claim 7; or The lubrication cooling system according to claim 8.

10. A wind power plant according to claim 9, wherein The radiator assembly (1) is arranged outside the wind turbine generator set.

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