Transmissions and vehicles

Abstract

This utility model discloses a gearbox and a vehicle. The gearbox includes a housing, a transmission assembly, and a shift assembly. The housing has a receiving space and a fixing part for fixing a vehicle motor. The transmission assembly is at least partially disposed within the receiving space, which contains a cooling medium for cooling the transmission assembly. The shift assembly connects to the transmission assembly to switch the gear ratio of the gearbox. The housing has a motor flow channel, one end of which connects to the receiving space and the other end extends to the fixing part to supply cooling medium to the vehicle motor. This utility model, by providing a fixing part and a motor channel on the housing to guide the cooling medium to the vehicle motor, fully utilizes the cooling medium within the receiving space to cool the vehicle motor, maximizes the fluidity and heat capacity of the cooling medium, avoids resource waste, and reduces the risk of system thermal runaway.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a transmission and a vehicle. Background Technology

[0002] In related technologies, the transmission, as a core component of a vehicle's powertrain system, contains multiple meshing gears and bearings, among other moving parts. These components generate a significant amount of heat during high-speed operation, accompanied by friction and wear. To ensure the normal operation of the transmission, a lubrication system is typically installed inside. This lubricant lubricates and cools the various components, thereby reducing friction, extending service life, and dissipating the heat generated during operation.

[0003] However, in existing designs, the distribution path and usage of lubricating oil are often fixed and rudimentary, mainly focusing on lubricating the gear meshing area, while failing to fully utilize the fluidity and heat capacity of the lubricating oil. For example, after initial lubrication, some lubricating oil is not effectively guided to other critical parts or participates in further heat dissipation processes, but instead quickly flows back to the oil pan or oil passage storage area, failing to realize its potential value. This low lubricating oil utilization not only wastes resources but may also affect the cooling performance of the transmission under high load or high temperature conditions, increasing the risk of system thermal runaway. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a gearbox that improves utilization, reduces waste, and lowers the probability of system thermal runaway.

[0005] A gearbox according to an embodiment of the present invention includes: a housing having a receiving space therein, and a fixing part for fixing a vehicle motor; a transmission assembly having at least a portion disposed within the receiving space, and a cooling medium disposed within the receiving space for cooling the transmission assembly; and a shifting assembly connected to the transmission assembly for switching the gear ratio of the gearbox; wherein the housing has a motor flow channel, one end of which communicates with the receiving space and the other end extends to the fixing part to supply the cooling medium to the vehicle motor.

[0006] According to the gearbox of this utility model embodiment, by setting a fixing part and a motor channel on the housing, the cooling medium is guided to the vehicle motor, thereby making full use of the cooling medium in the housing space to cool the vehicle motor, giving full play to the fluidity and heat capacity of the cooling medium, avoiding resource waste, and reducing the risk of system thermal runaway.

[0007] In some embodiments, the housing is provided with a power pump, the inlet of which is connected to the receiving space, and the outlet of which is connected to the motor flow channel to supply the cooling medium to the motor flow channel; wherein, the housing has opposing first and second sides, the power pump is disposed on the first side, and the fixing part is disposed on the second side.

[0008] In some embodiments, the housing is provided with a filter channel, one end of which is connected to the receiving space and the other end of which is connected to the inlet of the power pump, and a first filter element is provided inside the filter channel.

[0009] In some embodiments, the housing is further provided with a bypass channel, one end of which is connected to the filter channel and the other end of which is connected to the inlet of the power pump. An anti-clogging device is provided in the bypass channel, which is configured to normally block the bypass channel. The anti-clogging device is used to open the bypass channel when the pressure in the filter channel is greater than a set value.

[0010] In some embodiments, the anti-clogging device includes: a movable member movably disposed within the bypass channel, the movable member being adapted to abut against the inner wall of the housing to block the bypass channel; and an elastic member connecting the movable member and the housing respectively, such that the movable member tends to abut against the housing.

[0011] In some embodiments, the housing is provided with a guide tube that connects to the outlet of the power pump, and the guide tube is provided with a guide port that faces the transmission assembly to directionally spray the transmission assembly.

[0012] In some embodiments, the transmission assembly includes: a first gear shaft module disposed within the receiving space; and a second gear shaft module disposed within the receiving space and connected to the first gear shaft module; wherein, there are multiple guide tubes, and the multiple guide tubes respectively correspond to spraying the first gear shaft module and the second gear shaft module.

[0013] In some embodiments, the plurality of guide tubes include a first guide tube disposed on one side of the first gear shaft module, and the first guide tube is spaced apart from the first gear shaft module.

[0014] In some embodiments, the plurality of guide tubes include a second guide tube, and the second gear shaft module has a clearance hole at its center, with the second guide tube passing through the clearance hole.

[0015] The vehicle according to an embodiment of the present invention includes the aforementioned gearbox.

[0016] According to the vehicle of the present invention, by setting a fixing part and a motor channel on the housing, the cooling medium is guided to the vehicle motor, thereby making full use of the cooling medium in the housing space to cool the vehicle motor, giving full play to the fluidity and heat capacity of the cooling medium, avoiding resource waste, and reducing the risk of system thermal runaway.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the flow of the cooling medium in the gearbox in an embodiment of the present invention, wherein the arrow indicates the flow direction of the cooling medium;

[0020] Figure 2 This is a schematic diagram showing the position of the vehicle motor in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram showing the position of the first filter element in an embodiment of this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of a section at point I;

[0023] Figure 5 This is a schematic diagram showing the position of the guide tube in an embodiment of this utility model.

[0024] Figure label:

[0025] 100. Gearbox;

[0026] 10. Housing; 11. Accommodation space; 12. Fixing part; 13. Motor flow channel; 14. Power pump; 15. First side; 16. Second side; 17. Filter flow channel; 171. First filter element; 18. Bypass flow channel; 181. Anti-clogging device; 1811. Moving part; 1812. Elastic element; 182. Second filter element; 19. Guide tube; 191. Guide port; 192. First guide tube; 193. Second guide tube; 194. Check valve;

[0027] 20. Transmission assembly; 21. First gear shaft module; 22. Second gear shaft module; 221. Clearance hole; 30. Shift assembly; 200. Vehicle motor. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0031] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The gearbox 100 of this utility model is described below with reference to the accompanying drawings.

[0034] Reference Figures 1 to 5 A gearbox 100 according to an embodiment of the present utility model includes: a housing 10, a transmission assembly 20, and a shifting assembly 30.

[0035] The housing 10 has a receiving space 11 and a fixing part 12 for fixing the vehicle motor 200. The transmission assembly 20 is at least partially disposed within the receiving space 11, which contains a cooling medium to cool the transmission assembly 20. A shift assembly 30 is connected to the transmission assembly 20 to switch the gear ratio of the gearbox 100. The housing 10 has a motor flow channel 13, one end of which connects to the receiving space 11, and the other end extends to the fixing part 12 to supply cooling medium to the vehicle motor 200.

[0036] The gearbox 100 has a housing 10, and the housing space 11 inside the housing 10 is used to accommodate the transmission assembly 20 and the shift assembly 30. The fixing part 12 on the housing 10 is used to fix the vehicle motor 200. The vehicle motor 200 can provide power for vehicle movement. The vehicle motor 200 can also play other roles, which will not be described in detail here.

[0037] The housing 11 contains the transmission assembly 20 and the shift assembly 30. The housing 11 also contains a cooling medium to cool the transmission assembly 20. For example, the cooling medium is lubricating oil. Impurities and heat generated during the operation of the transmission assembly 20 are carried away by the flowing lubricating oil, keeping the friction surfaces on each component clean and extending the service life of the parts. At the same time, the lubricating oil is supplied to the fixing part 12, which is used to fix the vehicle motor 200. The lubricating oil cools the vehicle motor 200 and reduces its temperature.

[0038] In related technologies, the transmission, as a core component of a vehicle's powertrain system, contains multiple meshing gears and bearings, among other moving parts. These components generate a significant amount of heat during high-speed operation, accompanied by friction and wear. To ensure the normal operation of the transmission, a lubrication system is typically installed inside. This lubricant lubricates and cools the various components, thereby improving friction, extending service life, and dissipating the heat generated during operation.

[0039] However, in related designs, the distribution path and usage of lubricating oil are often fixed and rudimentary, mainly focusing on lubricating the gear meshing area, while failing to fully utilize the fluidity and heat capacity of the lubricating oil. For example, after initial lubrication, some lubricating oil is not effectively guided to other critical parts or participates in further heat dissipation processes, but instead quickly flows back to the oil pan or oil passage storage area, failing to realize its potential value. This low lubricating oil utilization not only wastes resources but may also affect the cooling performance of the transmission under high load or high temperature conditions, increasing the risk of system thermal runaway.

[0040] In this embodiment of the utility model, by providing a fixing part 12 on the housing 10 and opening a motor flow channel 13 on the housing 10, the motor flow channel 13 connects the accommodating space 11 and the fixing part 12, thereby guiding the cooling medium to the vehicle motor 200, using the cooling medium in the accommodating space 11 to cool the vehicle motor 200, making full use of the fluidity and heat capacity of the cooling medium, avoiding resource waste, and reducing the risk of system thermal runaway.

[0041] Specifically, the transmission assembly 20 includes meshing gears, and the cooling medium is lubricating oil. The lubricating oil lubricates the meshing gears within the receiving space 11, cleans the surface of the meshing gears, and reduces the temperature of the meshing gears.

[0042] Specifically, the cooling medium can be used to cool the vehicle motor 200 through heat conduction, without the cooling medium flowing into the vehicle motor 200; or, the vehicle motor 200 is provided with a cooling channel that connects to the motor channel 13, thereby improving the cooling effect.

[0043] Specifically, the shift assembly 30 includes components such as a shift shaft, a first-gear shift fork, and a second- and third-gear shift fork. The shift assembly 30 enables gear switching, and the details will not be elaborated here.

[0044] According to the embodiment of the present utility model, the gearbox 100, by providing a fixing part 12 and a motor channel on the housing 10, guides the cooling medium to the vehicle motor 200, thereby making full use of the cooling medium in the housing space 11 to cool the vehicle motor 200, giving full play to the fluidity and heat capacity of the cooling medium, avoiding resource waste, and reducing the risk of system thermal runaway.

[0045] Reference Figure 1 , Figure 2 In some embodiments, the housing 10 is provided with a power pump 14, the inlet of which is connected to the receiving space 11, and the outlet of which is connected to the motor flow channel 13 to supply cooling medium to the motor flow channel 13. The housing 10 has a first side 15 and a second side 16 opposite to each other, the power pump 14 is disposed on the first side 15, and the fixing part 12 is disposed on the second side 16.

[0046] The housing 10 is equipped with a power pump 14, which provides power. The inlet of the power pump 14 is connected to the receiving space 11, and the outlet of the power pump 14 is connected to the motor flow channel 13. The power pump 14 pumps the cooling medium to the motor flow channel 13, actively pumping the cooling medium to the motor flow channel 13. The two opposite sides of the housing 10 are the first side 15 and the second side 16. The power pump 14 is located on the first side 15, and the fixing part 12 is located on the second side 16. The power pump 14 and the vehicle motor 200 are located on opposite sides of the housing 10.

[0047] In the above scheme, by placing the power pump 14 on the first side 15 and the fixing part 12 on the second side 16, the space on the opposite sides of the housing 10 is fully utilized, the space utilization rate is improved, and the overall structure is more reasonable and compact.

[0048] Specifically, the front-facing side of the housing 10 is the first side 15, the rear-facing side of the housing 10 is the second side 16, the power pump 14 is located on the front side of the housing 10, and the vehicle motor 200 is located on the rear side of the housing 10.

[0049] Specifically, the power pump 14 is a mechanical pump that provides power. More specifically, an electronic oil pump is also provided on the housing 10. The electronic oil pump and the mechanical pump work in a complementary manner. When the vehicle speed is below 5 km / h, the mechanical pump works; when the vehicle speed exceeds 5 km / h, the electronic oil pump works. This allows the transmission 100 to adapt to high-load and high-speed operating conditions, and the lubricating oil can form a stable oil film between the components, withstand high loads, and separate the friction surfaces, thereby improving the stability of the transmission 100's operation.

[0050] Reference Figure 1 , Figure 3 In some embodiments, the housing 10 is provided with a filter channel 17, one end of which is connected to the receiving space 11 and the other end is connected to the inlet of the power pump 14. A first filter element 171 is provided inside the filter channel 17.

[0051] The filter channel 17 is provided with a first filter element 171, which is located upstream of the power pump 14. The cooling medium passes through the first filter element 171 before entering the power pump 14.

[0052] In the above scheme, by setting up a filter channel 17, and providing a first filter element 171 inside the filter channel 17, the cooling medium is filtered by the first filter element 171, thereby improving the cleanliness of the cooling medium and improving the overall performance.

[0053] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments, the housing 10 is also provided with a bypass channel 18, one end of which is connected to the filter channel 17 and the other end is connected to the inlet of the power pump 14. An anti-clogging device 181 is provided in the bypass channel 18. The anti-clogging device 181 is configured to normally block the bypass channel 18. The anti-clogging device 181 is used to open the bypass channel 18 when the pressure in the filter channel 17 is greater than a set value.

[0054] A bypass channel 18 is also provided on the housing 10, and an anti-clogging device is installed in the bypass channel 18. Utilizing the bypass channel 18 and the anti-clogging device 181, when there is excessive clogging of the first filter element 171 by impurities, the bypass channel 18 and the anti-clogging device 181 function, reducing the probability of the cooling medium being unable to flow, thus allowing the gearbox 100 to operate normally. The set value is a value preset by the user and can be adjusted.

[0055] In the above solution, a bypass channel 18 is provided on the housing 10. One end of the bypass channel 18 is connected to the filter channel 17, and the other end is connected to the inlet of the power pump 14. An anti-clogging device 181 is provided in the bypass channel 18. The anti-clogging device 181 is configured to normally block the filter channel 17. The anti-clogging device 181 is used to open the bypass channel 18 when the pressure in the filter channel 17 is greater than a set value, thereby reducing the probability that the cooling medium cannot flow. The gearbox 100 can always work normally, improving the overall performance.

[0056] Specifically, when the pressure inside the filter channel 17 is less than or equal to the set value, the anti-blocking device 181 blocks the bypass channel 18, and the bypass channel 18 is not open. When the pressure inside the filter channel 17 is greater than the set value, the anti-blocking device 181 is activated, the bypass channel 18 is opened, and the cooling medium in the filter channel 17 flows into the power pump 14 through the bypass channel 18.

[0057] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments, the anti-blocking device 181 includes: a movable element 1811 and an elastic element 1812.

[0058] The movable member 1811 is movably disposed within the bypass channel 18, and the movable member 1811 is adapted to abut against the inner wall of the housing 10 to block the bypass channel 18. The elastic member 1812 connects the movable member 1811 and the housing 10 respectively, so that the movable member 1811 tends to abut against the housing 10.

[0059] The movable component 1811 is movably disposed within the bypass channel 18. The movable component 1811 is adapted to abut against the inner wall of the housing 10. When the movable component 1811 abuts against the inner wall of the housing 10, there is no gap between the movable component 1811 and the inner wall of the housing 10, and the cooling medium cannot flow in the bypass channel 18, thus blocking the bypass channel 18. The movable component 1811 then moves, creating a gap between the movable component 1811 and the inner wall of the housing 10, through which the cooling medium passes, and the bypass channel 18 becomes open. The elastic component 1812 connects the movable component 1811 and the housing 10 respectively. The elastic force of the elastic component 1812 acts on the movable component 1811. Under the action of no external force, the movable component 1811 automatically abuts against the inner wall of the housing 10, and the anti-blocking device 181 constantly blocks the bypass channel 18.

[0060] In the above scheme, the moving part 1811 and the elastic part 1812 cooperate to make the moving part 1811 tend to stop against the housing 10. The anti-blocking device 181 automatically blocks the bypass flow channel 18. The overall structure is simple and durable, reduces the probability of false triggering, and improves the overall stability.

[0061] Specifically, the elastic element 1812 is a spring, and the movable element 1811 is a movable column. The spring is sleeved on the movable column, and the spring applies a force to the movable column, so that the movable column automatically abuts against the inner wall of the housing 10.

[0062] More specifically, a second filter element 182 is also provided in the bypass channel 18. The cooling medium flowing through the bypass channel 18 is filtered by the second filter element 182, which improves the cleanliness.

[0063] Reference Figure 1 , Figure 5 In some embodiments, the housing 10 is provided with a guide tube 19, which is connected to the outlet of the power pump 14. The guide tube 19 is provided with a guide port 191, which faces the transmission assembly 20 to directionally spray the transmission assembly 20.

[0064] The guide pipe 19 guides the cooling medium and is connected to the outlet of the power pump 14. The power pump 14 pumps the cooling medium to the guide pipe 19. The guide pipe 19 is provided with a guide port 191 facing the transmission assembly 20. Under the pressure of the power pump 14, the guide port 191 sprays the cooling medium onto the transmission assembly 20, thereby directionally cooling the transmission assembly 20.

[0065] In the above solution, by setting a guide pipe 19, which is connected to the outlet of the power pump 14, and a guide port 191 is provided on the guide pipe 19, the guide port 191 faces the transmission assembly 20, so as to spray the transmission assembly 20 in a directional manner. Compared with the splash lubrication solution in the related art, the embodiment of this utility model improves the targeting, and the cooling medium is sprayed directionally to the transmission assembly 20, with the transmission assembly 20 as the main cooling target, thereby improving the utilization rate and reducing waste.

[0066] Specifically, there are multiple guide ports 191, which are spaced apart, and a spray transmission assembly 20.

[0067] More specifically, multiple guide ports 191 are arranged sequentially at intervals along the extension direction of the guide tube 19, which improves the utilization rate.

[0068] Reference Figure 1 , Figure 5 In some embodiments, the transmission assembly 20 includes a first gear shaft module 21 and a second gear shaft module 22.

[0069] The first gear shaft module 21 is disposed within the receiving space 11. The second gear shaft module 22 is disposed within the receiving space 11 and connected to the first gear shaft module 21. There are multiple guide pipes 19, which correspond to spraying the first gear shaft module 21 and the second gear shaft module 22 respectively.

[0070] The first gear shaft module 21 includes a gear and a shaft, and the second gear shaft module 22 includes a gear and a shaft. The gears mesh with each other, and the gears switch with the shaft. Power is transmitted from the shaft to the gears, and then output from another shaft. There are multiple guide tubes 19, each corresponding to a different gear shaft module. The guide ports 191 on the guide tubes 19 face the gear shaft modules and correspond to the spray gear shaft modules.

[0071] In the above scheme, multiple guide pipes 19 are set, and multiple gear shaft modules are respectively set with guide pipes 19. The multiple guide pipes 19 are respectively used to spray the gear shaft modules, thereby further improving the targeting, increasing the utilization rate, and making full use of the cooling medium.

[0072] Specifically, the transmission assembly 20 may also include more gear shaft modules, such as a third gear shaft module and a fourth gear shaft module, with gears and shafts switching and cooperating. The specific details are existing technology and will not be elaborated here.

[0073] Reference Figure 1 , Figure 5 In some embodiments, the plurality of guide tubes 19 include a first guide tube 192, which is disposed on one side of the first gear shaft module 21 and is spaced apart from the first gear shaft module 21.

[0074] The first guide tube 192 is located on one side of the first gear shaft module 21. The first guide tube 192 and the first gear shaft module 21 are spaced apart. The guide port 191 on the first guide tube 192 sprays water onto the outer circumferential surface of the first gear shaft module 21.

[0075] In the above solution, by setting a first guide pipe 192 spaced apart from the first gear shaft module 21, the first guide pipe 192 is located on one side of the first gear shaft module 21, which fully sprays the outer peripheral surface of the first gear shaft module 21, increases the spraying area, improves the effect, and improves the overall performance.

[0076] Reference Figure 1 , Figure 5 In some embodiments, the plurality of guide tubes 19 include a second guide tube 193, and the center of the second gear shaft module 22 is provided with a clearance hole 221, and the second guide tube 193 passes through the clearance hole 221.

[0077] The second gear shaft module 22 is a hollow structure. A clearance hole 221 is provided in the center of the second gear shaft module 22. The clearance hole 221 is used to accommodate the second guide tube 193. The second guide tube 193 passes through the clearance hole 221. The guide port 191 on the second guide tube 193 faces the inner wall of the second gear shaft module 22. Cooling medium is sprayed onto the inner wall of the second gear shaft module 22.

[0078] In the above scheme, by providing a clearance hole 221 at the center of the second gear shaft module 22, the clearance hole 221 accommodates the second guide tube 193, and the second guide tube 193 sprays the center of the second gear shaft module 22, so that the cooling medium is fully sprayed into the interior of the second gear shaft module 22, the cooling medium plays its full role, and the utilization rate is improved.

[0079] Reference Figure 1 In some embodiments, the housing 10 is provided with a one-way valve 194, which controls the flow direction.

[0080] The vehicle according to an embodiment of the present invention includes the aforementioned gearbox 100.

[0081] According to the vehicle of this utility model embodiment, by providing a fixing part 12 and a motor channel on the housing 10, the cooling medium is guided to the vehicle motor 200, thereby making full use of the cooling medium in the housing space 11 to cool the vehicle motor 200, giving full play to the fluidity and heat capacity of the cooling medium, avoiding resource waste, and reducing the risk of system thermal runaway.

[0082] Other configurations and operations of the gearbox 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0083] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gearbox, characterized in that, include: The housing (10) has a receiving space (11) inside and a fixing part (12) for fixing the vehicle motor (200). A transmission assembly (20) is at least partially disposed within the receiving space (11), and the receiving space (11) is provided with a cooling medium to cool the transmission assembly (20); A shift assembly (30) is connected to the transmission assembly (20) to switch the gear ratio of the gearbox (100); wherein, The housing (10) is provided with a motor flow channel (13), one end of which is connected to the receiving space (11) and the other end extends to the fixing part (12) to supply the cooling medium to the vehicle motor (200).

2. The gearbox according to claim 1, characterized in that, A power pump (14) is provided on the housing (10). The inlet of the power pump (14) is connected to the receiving space (11), and the outlet of the power pump (14) is connected to the motor flow channel (13) to supply the cooling medium to the motor flow channel (13); wherein, The housing (10) has a first side (15) and a second side (16) opposite to each other, the power pump (14) is disposed on the first side (15), and the fixing part (12) is disposed on the second side (16).

3. The gearbox according to claim 2, characterized in that, The housing (10) is provided with a filter channel (17), one end of which is connected to the accommodating space (11) and the other end is connected to the inlet of the power pump (14). A first filter element (171) is provided in the filter channel (17).

4. The gearbox according to claim 3, characterized in that, The housing (10) is also provided with a bypass channel (18), one end of which is connected to the filter channel (17) and the other end is connected to the inlet of the power pump (14). An anti-clogging device (181) is provided in the bypass channel (18), which is configured to block the bypass channel (18) normally. The anti-clogging device (181) is used to open the bypass channel (18) when the pressure in the filter channel (17) is greater than a set value.

5. The gearbox according to claim 4, characterized in that, The anti-blocking device (181) includes: Movable component (1811), which is movably disposed in the bypass channel (18), is adapted to abut against the inner wall of the housing (10) to block the bypass channel (18); An elastic element (1812) is provided, which connects the movable element (1811) to the housing (10) respectively, so that the movable element (1811) tends to stop against the housing (10).

6. The gearbox according to claim 2, characterized in that, The housing (10) is provided with a guide tube (19) which is connected to the outlet of the power pump (14). The guide tube (19) is provided with a guide port (191) which faces the transmission assembly (20) to spray the transmission assembly (20) in a directional manner.

7. The gearbox according to claim 6, characterized in that, The transmission assembly (20) includes: The first gear shaft module (21) is disposed within the accommodating space (11); A second gear shaft module (22) is disposed within the receiving space (11) and connected to the first gear shaft module (21); wherein, There are multiple guide tubes (19), and the multiple guide tubes (19) are respectively sprayed to the first gear shaft module (21) and the second gear shaft module (22).

8. The gearbox according to claim 7, characterized in that, The plurality of guide tubes (19) include a first guide tube (192), which is disposed on one side of the first gear shaft module (21) and is spaced apart from the first gear shaft module (21).

9. The gearbox according to claim 7, characterized in that, The plurality of guide tubes (19) include a second guide tube (193), and the center of the second gear shaft module (22) is provided with a clearance hole (221), and the second guide tube (193) passes through the clearance hole (221).

10. A vehicle, characterized in that, The transmission (100) includes any one of claims 1 to 9.

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