Base of water-cooled motor and water-cooled motor

Abstract

The utility model provides a base of a water-cooled motor and the water-cooled motor. A water inlet and a water outlet are formed in the side wall of an outer shell of the base; the inner shell is arranged in the outer shell; the two end covers respectively cover the two ends of the outer shell; an annular cavity with two sealed ends is formed among the two end covers, the outer shell and the inner shell, and at least one first partition plate and at least one second partition plate are arranged in the annular cavity; the two ends of the first partition plate are attached to the inner walls of the two end covers correspondingly, and one end of the second partition plate is attached to the inner wall of one end cover, so that a channel allowing cooling water to flow back and forth is formed in the annular cavity. The base of the motor is arranged to be in a structural form in which cooling water can circulate, so that the cooling water can circulate in the base of the motor to realize heat dissipation of the motor. The motor base of the motor does not adopt a fan for heat dissipation any more, the overall dimension of the motor is reduced, and the motor can enter an installation station in a preset state under the condition that the installation space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooled motors, in particular to a base of a water-cooled motor and the water-cooled motor. Background Art

[0002] Most motor components use fans for cooling. A fan is installed at the rear of the motor, and the rotating blades blow air to circulate the air inside and outside the motor for cooling. Motors that use fans for cooling have the following problems: First, when the external ambient temperature of the motor is high, the fan exchanges air inside and outside the motor. However, since the internal and external ambient temperatures of the motor base are similar, the cooling effect is poor. Second, during installation, the addition of a fan also increases the motor's installation space, making it difficult to install if space is limited on site. Third, the external fan shroud installed on the motor is thin. In the event of a collision, it could strike the fan blades, affecting the fan's operation and, consequently, the motor's cooling. Therefore, these issues need to be addressed. Utility Model Content

[0003] The purpose of the embodiments of the present utility model is to provide a base of a water-cooled motor and a water-cooled motor, so as to solve the above-mentioned problems existing in the prior art when the motor adopts a fan for heat exchange.

[0004] The embodiment of the present utility model adopts the following technical solution: a base of a water-cooled motor, comprising:

[0005] The outer shell has a water inlet for cooling water to enter and a water outlet for cooling water to discharge on its side wall;

[0006] an inner shell, which is arranged in the outer shell;

[0007] Two end covers, the two end covers are respectively sealed at the two ends of the outer shell; an annular cavity with both ends blocked is formed between the two end covers, the outer shell and the inner shell, at least one first baffle and at least one second baffle are arranged in the annular cavity, and the first baffle and the second baffle are arranged at intervals along the circumference of the cavity; wherein the two ends of the first baffle are respectively attached to the inner walls of the two end covers, and one end of the second baffle is attached to the inner wall of one of the end covers, so that the annular cavity forms a channel for the return flow of cooling water; the channel is respectively connected to the water inlet and the water outlet, and the water inlet and the water outlet are respectively located on both sides of the first baffle.

[0008] In some embodiments, the second partition includes more than two; the two end caps are respectively a first end cap and a second end cap;

[0009] One end of one of the second partitions is sealed against the inner wall of the first end cover, and a first gap for cooling water to flow is formed between the other end of the second partition and the second end cover; one end of another one or two second partitions adjacent to the second partition is sealed against the inner wall of the second end cover, and a second gap for cooling water to flow is formed between the other end of the other one or two second partitions and the first end cover.

[0010] In some embodiments, the base further includes a junction box seat and a third partition;

[0011] The outer shell and the inner shell are both cylindrical, and the side walls of the outer shell and the inner shell are respectively provided with wire outlet holes penetrating the respective side walls; one end of the junction box seat extends through the first wire outlet hole on the side wall of the outer shell into the annular cavity and is sealed with the wire outlet hole on the side wall of the inner shell;

[0012] The length of the third partition is smaller than the length of the first partition and the length of the second partition; one end of the third partition is attached to one of the end covers or the outer wall of the junction box seat, and a third gap for cooling water to flow is formed between the other end of the third partition and the outer wall of the junction box seat or the other end cover.

[0013] In some embodiments, the base further includes a cylindrical wire outlet plate frame; one end of the wire outlet plate frame is sealed and fixed to the outer wall of the inner shell, and the other end of the wire outlet plate frame is sealed and fixed to the inner wall of the outer shell, and the wire outlet holes on the side wall of the inner shell and the wire outlet holes on the side wall of the outer shell are respectively connected to the two ends of the wire outlet plate frame to form a wire outlet space; one end of the junction box seat is sealed and fixed to the outer wall of the outer shell and is connected to the wire outlet space;

[0014] One end of the third partition is attached to one of the end covers or the outer wall of the outlet plate frame, and the third gap is formed between the other end of the third partition and the outer wall of the outlet plate frame or the other end cover.

[0015] In some embodiments, the outer shell is formed into a cylindrical shape by welding a plurality of outer cover plates, wherein the outer cover plates include at least one outlet outer cover plate and one inlet and outlet outer cover plate;

[0016] Another outlet hole is provided on the outlet outer cover plate at a position corresponding to the outlet hole on the side wall of the inner shell;

[0017] The water inlet and outlet outer cover plate is provided with the water inlet and the water outlet.

[0018] In some embodiments, the outlet outer cover plate and the water inlet and outlet outer cover plate are arc-shaped plates with the same curvature as the inner wall of the outer shell.

[0019] In some embodiments, transition baffles are attached and welded to the inner wall of the outer shell at positions corresponding to the first notch, the second notch, and the third notch, and the transition baffles are also welded and fixed to the first partition, the second partition, or the third partition, respectively.

[0020] In some embodiments, the first partition plate and the second partition plate divide the annular cavity into at least two channels with the same circumferential spacing.

[0021] In some embodiments, the machine base is formed by welding the outer shell, the inner shell, the end cover, the first partition and the second partition, and the outer shell, the inner shell, the end cover, the first partition and the second partition are all made of steel.

[0022] An embodiment of the present utility model further discloses a water-cooled motor, comprising a motor base as described in any one of the above embodiments.

[0023] The beneficial effects of the embodiments of the present utility model are:

[0024] By configuring the motor base to allow for cooling water circulation, cooling water can be circulated within the motor base to dissipate heat from the motor. This water cooling process does not affect the normal operation of the motor. Furthermore, the motor base no longer requires fans for heat dissipation, reducing the motor's overall dimensions. Even in tight installation spaces, the motor can be placed in its intended position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 This is a structural diagram of the base of the water-cooled motor of the utility model.

[0027] Figure 2 This is another structural schematic diagram of the base of the water-cooled motor of the present invention.

[0028] Figure 3 It is a schematic structural diagram of the outer shell of the utility model after it is unfolded.

[0029] Figure 4It is a structural schematic diagram of the inner shell of the utility model.

[0030] Figure 5 This is another structural schematic diagram of the inner shell of the present invention.

[0031] Figure 6 This is a structural diagram of the outlet outer cover of the utility model.

[0032] Figure 7 This is a structural diagram of the outer cover plate of the water inlet and outlet of the utility model.

[0033] Reference numerals: 1, outer shell; 101, water inlet; 102, water outlet; 103, first wire outlet hole; 104, wire outlet outer cover plate; 105, water inlet and outlet outer cover plate;

[0034] 2. Inner shell; 201. Second wire outlet hole;

[0035] 3. End cover; 4. Annular cavity; 5. First partition; 6. Second partition; 7. First notch; 8. Second notch; 9. Junction box seat; 10. Third partition; 11. Third notch; 12. Wire outlet frame; 13. Transition baffle. DETAILED DESCRIPTION

[0036] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0037] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present invention will occur to those skilled in the art.

[0038] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0039] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0040] It should also be understood that although the present invention has been described with reference to certain specific examples, those skilled in the art will be able to certainly realize many other equivalent forms of the present invention, which have the characteristics of the above-mentioned "utility model content" and are therefore within the scope of protection defined thereby.

[0041] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0042] Specific embodiments of the present invention will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present invention with unnecessary or redundant detail. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the above-mentioned "Inventive Summary" to teach those skilled in the art to variously utilize the present invention with substantially any suitable detailed structure.

[0043] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present invention.

[0044] In order to solve the problems in the background technology, the utility model discloses a base of a water-cooled motor. Figures 1 to 3 As shown, the base of the water-cooled motor includes an outer shell 1, an inner shell 2, two end covers 3 and a partition.

[0045] Continue to combine Figure 1 and Figure 3 The side wall of the outer shell 1 is provided with a water inlet 101 for cooling water to enter and a water outlet 102 for cooling water to discharge. The water inlet 101 and the water outlet 102 can be set as circular openings to facilitate the installation of connectors, such as connecting pipes and connecting flanges, and then connected to the water inlet pipe and the water outlet pipe through the connecting pipes and connecting flanges. The water inlet pipe and the water outlet pipe can be made of plastic hoses. When the motor is installed, the position of the water inlet pipe and the water outlet pipe can be adjusted as needed so that the machine base can adapt to different installation environments. Of course, it is understandable that the water inlet 101 and the water outlet 102 can also adopt other shapes, and no specific limitation is made here. The outer shell 1 is cylindrical, and the water inlet 101 and the water outlet 102 can be set at the same end of the outer shell 1, or they can be set at both ends of the outer shell 1 respectively. The water inlet 101 and the water outlet 102 can also be designed in the middle of the outer shell 1 or at other positions as needed. This is only used as an example and is not enough to limit the scope of protection of the claims.

[0046] Combine Figure 2 The inner housing 2 is disposed within the outer housing 1. The inner housing 2 may be cylindrical and coaxial with the outer housing 1. The length of the inner housing 2 (the axial dimension of the inner housing 2) is no greater than the length of the outer housing 1. The outer diameter of the inner housing 2 is smaller than the inner diameter of the outer housing 1, and there is a certain distance between the outer wall of the inner housing 2 and the inner wall of the outer housing 1.

[0047] Combine Figure 2 and Figure 3The two end covers 3 are respectively sealed at both ends of the outer shell 1. At the same time, the two ends of the inner shell 2 are also respectively abutted against the inner walls of the two end covers 3. An annular cavity 4 with both ends blocked is formed between the two end covers 3, the outer shell 1 and the inner shell 2. A partition is provided in the annular cavity 4, which is divided into at least two interconnected cavities by the partition, so that the cooling water can enter one of the cavities after passing through the water inlet 101 and can flow in the cavity along a first direction, which is parallel to the axial direction of the outer shell 1. The cooling water then flows into one or two cavities adjacent to the cavity and continues to flow in a second direction, wherein the second direction is opposite to the first direction; this reciprocating cycle continues until the cooling water flows through the entire annular cavity 4 and is finally discharged through the water outlet 102.

[0048] For example, again combined Figure 3 The partition includes at least one first partition 5 and at least one second partition 6, and the first partition 5 and the second partition 6 are arranged at intervals along the circumference of the cavity. The first partition 5 can be a rectangular plate, and the two ends of the first partition 5 are respectively attached to the inner walls of the two end covers 3, one side surface of the first partition 5 is attached to the inner wall surface of the outer shell 1, and the other side surface of the first partition 5 is attached to the outer wall surface of the inner shell 2, so as to separate the annular cavity 4. The cooling water on both sides of the first partition 5 in the annular cavity 4 is separated by the two plate surfaces of the first partition 5. The second partition 6 can also be a rectangular plate, and its length (dimension along the axial direction of the outer shell 1) is smaller than the first partition 5. One end of the second partition 6 is attached to the inner wall of one of the end covers 3, and the other end of the second partition 6 is at a certain distance from the other end cover 3, so that the annular cavity 4 forms a channel for the cooling water to flow back. One side surface of the second partition 6 is in contact with the inner wall surface of the outer shell 1, and the other side surface of the first partition 5 is in contact with the outer wall surface of the inner shell 2, thereby separating the annular cavity 4. This allows the cooling water on both sides of the second partition 6 to achieve one-way circulation through the gap between the other end of the second partition 6 and the other end cover 3. The channel is connected to the water inlet 101 and the water outlet 102, respectively, and the water inlet 101 and the water outlet 102 are respectively located on both sides of the first partition 5. After entering the channel through the water inlet 101, the cooling water can flow through the entire annular cavity 4 and then be discharged through the water outlet 102 to cool the entire motor, fully utilize the cooling capacity of the cooling water, and improve the heat dissipation effect.

[0049] By configuring the motor base to allow for the circulation of cooling water, the present invention allows for the circulation of cooling water within the motor base to dissipate heat from the motor. This water cooling process does not affect the normal operation of the motor. Furthermore, the motor base no longer requires a fan for heat dissipation, reducing the motor's overall dimensions. Even in tight installation spaces, the motor can be placed in a pre-determined state.

[0050] In one embodiment of the present application, the second partition plate 6 includes more than two, and the two end covers 3 are respectively a first end cover 3 and a second end cover 3 .

[0051] Combine Figure 3 One end of one of the second baffles 6 is sealed against the inner wall of the first end cover 3, and a first notch 7 for cooling water to flow is formed between the other end of the second baffle 6 and the second end cover 3. Cooling water on one side of the second baffle 6 can flow to the other side of the second baffle 6 through the first notch 7. That is, cooling water on both sides of the second baffle 6 can flow in one direction through the first notch 7. One end of another second baffle 6 (when there are two second baffles 6) or two second baffles 6 (when there are three or more second baffles 6) adjacent to the second baffle 6 is sealed against the inner wall of the second end cover 3, and a second notch 8 for cooling water to flow is formed between the other end of the second baffle 6 and the first end cover 3. That is, the second notch 8 and the first notch 7 are respectively located at the two ends of the annular cavity 4, thereby achieving a return circulation of cooling water through the first notch 7 and the second notch 8. Similarly, cooling water on one side of the second baffle 6 can flow to the other side through the second notch 8, achieving one-way circulation of cooling water in the second notch 8.

[0052] Of course, it is understood that both ends of the second partition plate 6 can be respectively attached to the inner walls of the two end caps 3, and the first notch 7 and the second notch 8 can be directly formed on the two adjacent second partition plates 6, with the first notch 7 and the second notch 8 being respectively close to the first end cap 3 and the second end cap 3. Alternatively, other notch arrangements can be used to achieve a return circulation of cooling water within the annular cavity 4. This is merely an example and does not limit the scope of protection of the claims.

[0053] In one embodiment of the present application, the base further includes a junction box seat 9 and a third partition 10 .

[0054] The outer shell 1 and the inner shell 2 can both be cylindrical, combined Figure 1 、 Figure 4 and Figure 5 The side walls of the outer shell 1 and the inner shell 2 are each provided with a wire outlet hole extending through each side wall. For example, the wire outlet hole extending through the side wall of the outer shell 1 is a first wire outlet hole 103, and the wire outlet hole extending through the side wall of the inner shell 2 is a second wire outlet hole 201. One end of the terminal box seat 9 extends through the first wire outlet hole 103 in the side wall of the outer shell 1 into the annular cavity 4 and is sealed with the second wire outlet hole 201 in the side wall of the inner shell 2. The terminal box is secured by the terminal box seat 9, and the stator winding inside the motor then passes through the terminal box seat 9.

[0055] Combine Figure 3, the length of the third partition 10 (the dimension along the axial direction of the outer shell 1) is smaller than the length of the first partition 5 and the length of the second partition 6. One end of the third partition 10 is attached to one of the end covers 3 or the outer wall of the junction box seat 9, and a third gap 11 for cooling water to flow is formed between the other end of the third partition 10 and the outer wall of the junction box seat 9 or the other end cover 3. The third partition 10 can also be a rectangular plate, one side surface of the third partition 10 is attached to the inner wall surface of the outer shell 1, and the other side surface of the third partition 10 is attached to the outer wall surface of the inner shell 2, so that the cooling water on both sides of the third partition 10 can achieve one-way circulation through the third gap 11. The third gap 11 is preferably set at the end close to the junction box seat 9, because the heat of the motor is more concentrated there, and the circulation of cooling water at the third gap 11 can achieve better heat dissipation there.

[0056] In one embodiment of the present application, the machine base also includes a cylindrical wire outlet plate frame 12, one end of the wire outlet plate frame 12 is sealed and fixed to the outer wall of the inner shell 2, and the other end of the wire outlet plate frame 12 is sealed and fixed to the inner wall of the outer shell 1, and the wire outlet holes on the side wall of the inner shell 2 and the wire outlet holes on the side wall of the outer shell 1 are respectively connected to the two ends of the wire outlet plate frame 12 to form a wire outlet space, and the stator winding inside the motor passes through the wire outlet space.

[0057] One end of the junction box seat 9 is sealed and fixed on the outer wall of the outer shell 1 and communicates with the outlet space to achieve the connection between the junction box and the stator winding inside the motor.

[0058] Similarly, the third partition 10 can be a rectangular plate. The connection relationship between the third partition 10 and the inner wall of the outer shell 1 and the outer wall of the inner shell 2 is the same as described above and will not be repeated here. One end of the third partition 10 is attached to the outer wall of one of the end caps 3 or the outlet plate frame 12. A third gap 11 is formed between the other end of the third partition 10 and the outer wall of the outlet plate frame 12 or the other end cap 3, allowing cooling water on both sides of the third partition 10 to flow in one direction through the third gap 11.

[0059] In one embodiment of the present application, the outer shell 1 is formed by welding multiple outer cover plates into a cylindrical shape, more precisely, a cylindrical shape with a polygonal cross section. The outer cover plates include at least one outlet outer cover plate 104 and one inlet and outlet outer cover plate 105.

[0060] The first outlet hole 103 is provided on the outlet outer cover plate 104 at a position corresponding to the outlet hole (second outlet hole 201) on the side wall of the inner shell 2. Figure 6 As shown, the outgoing wire outer cover plate 104 may also include two pieces, and the two outgoing wire outer cover plates 104 are welded, assembled and fixed to form the second outgoing wire hole 201 .

[0061] The water inlet 101 and the water outlet 102 are provided on the water inlet and outlet outer cover plate 105. Figure 7 As shown, the water inlet and outlet outer cover plate 102 may also include two pieces, wherein the water inlet 101 is provided on one water inlet and outlet outer cover plate 105 , and the water outlet 102 is provided on the other water inlet and outlet outer cover plate 105 .

[0062] The outer cover plate can be an arc plate with a certain arc, or a flat plate. For example, the outlet outer cover plate 104 and the water inlet and outlet outer cover plate 105 are both arc plates with the same arc as the inner wall of the outer shell 1.

[0063] In one embodiment of the present application, transition baffles 13 are attached and welded to the inner wall of the outer shell 1 at positions corresponding to the first notch 7, the second notch 8, and the third notch 11. The transition baffles 13 are also welded and fixed to the first partition 5, the second partition 6, or the third partition 10. The transition baffles 13 can be designed as thin plates and serve to provide a fixed location for welding the outer cover plate, thereby achieving welding and fixing of the outer cover plate at the corresponding notches.

[0064] In one embodiment of the present application, the first baffle 5 and the second baffle 6 divide the annular cavity 4 into at least two channels with equal circumferential spacing. Of course, the size of the channels can be adjusted as needed, for example, by placing more second baffles 6 in locations where heat is more concentrated. The first baffle 5 and the second baffle 6 can be arranged parallel to each other or inclined within the annular cavity 4. This is merely an example and does not limit the scope of the claims.

[0065] In one embodiment of the present application, the motor base is welded together by an outer shell 1, an inner shell 2, an end cap 3, a first partition 5, and a second partition 6. The outer shell 1, inner shell 2, end cap 3, first partition 5, and second partition 6 are all made of steel. Because the motor base is welded from steel plates, the motor can be designed with various dimensions, facilitating different motor installation locations and adapting to different motor installation environments.

[0066] An embodiment of the present utility model further discloses a water-cooled motor, comprising a motor base as described in any one of the above embodiments.

[0067] The above describes in detail several embodiments of the present invention, but the present invention is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of the present invention, and these variations and modifications should fall within the scope of protection claimed by the present invention.

Claims

1. A base of a water-cooled motor, characterized in that: include: The outer shell has a side wall provided with a water inlet for cooling water to enter and a water outlet for cooling water to discharge; An inner shell, which is arranged in the outer shell; Two end covers, the two end covers are respectively sealed at the two ends of the outer shell; an annular cavity with both ends blocked is formed between the two end covers, the outer shell and the inner shell, at least one first baffle and at least one second baffle are arranged in the annular cavity, and the first baffle and the second baffle are arranged at intervals along the circumference of the cavity; wherein the two ends of the first baffle are respectively attached to the inner walls of the two end covers, and one end of the second baffle is attached to the inner wall of one of the end covers, so that the annular cavity forms a channel for the return flow of cooling water; the channel is respectively connected to the water inlet and the water outlet, and the water inlet and the water outlet are respectively located on both sides of the first baffle.

2. The base of the water-cooled motor according to claim 1, characterized in that: The second partition includes more than two; the two end covers are respectively a first end cover and a second end cover; One end of one of the second partitions is sealed to the inner wall of the first end cover, and a first gap for cooling water to flow is formed between the other end of the second partition and the second end cover; one end of another one or two second partitions adjacent to the second partition is sealed to the inner wall of the second end cover, and a second gap for cooling water to flow is formed between the other end of the other one or two second partitions and the first end cover.

3. The base of the water-cooled motor according to claim 2, characterized in that: The base also includes a junction box base and a third partition plate; The outer shell and the inner shell are both cylindrical, and the side walls of the outer shell and the inner shell are respectively provided with outlet holes penetrating the respective side walls; one end of the junction box seat extends into the annular cavity through the first outlet hole on the side wall of the outer shell, and is sealed and connected with the outlet hole on the side wall of the inner shell; The length of the third partition is smaller than the length of the first partition and the length of the second partition; one end of the third partition is attached to one of the end covers or the outer wall of the junction box seat, and a third gap for cooling water to flow is formed between the other end of the third partition and the outer wall of the junction box seat or the other end cover.

4. The base of the water-cooled motor according to claim 3, characterized in that: The base also includes a cylindrical outlet plate frame; one end of the outlet plate frame is sealed and fixed to the outer wall of the inner shell, and the other end of the outlet plate frame is sealed and fixed to the inner wall of the outer shell, and the outlet hole on the side wall of the inner shell and the outlet hole on the side wall of the outer shell are respectively connected to the two ends of the outlet plate frame to form an outlet space; one end of the junction box seat is sealed and fixed to the outer wall of the outer shell and is connected to the outlet space; One end of the third partition is attached to one of the end covers or the outer wall of the outlet plate frame, and the third gap is formed between the other end of the third partition and the outer wall of the outlet plate frame or the other end cover.

5. The base of the water-cooled motor according to claim 4, characterized in that: The outer shell is formed into a cylindrical shape by welding a plurality of outer cover plates, wherein the outer cover plates include at least one outlet outer cover plate and one inlet and outlet outer cover plate; Another outlet hole is provided on the outlet outer cover plate at a position corresponding to the outlet hole on the side wall of the inner shell; The water inlet and outlet outer cover plate is provided with the water inlet and the water outlet.

6. The base of the water-cooled motor according to claim 5, characterized in that: The outlet outer cover plate and the water inlet and outlet outer cover plates are arc-shaped plates with the same curvature as the inner wall of the outer shell.

7. The base of the water-cooled motor according to claim 5, characterized in that: Transition baffles are respectively attached and welded to the inner wall of the outer shell at positions corresponding to the first notch, the second notch and the third notch, and the transition baffles are also respectively welded and fixed to the first partition plate, the second partition plate or the third partition plate.

8. The base of the water-cooled motor according to claim 1, characterized in that: The first partition plate and the second partition plate divide the annular cavity into at least two channels with the same circumferential spacing.

9. The base of the water-cooled motor according to claim 1, characterized in that: The base is formed by welding the outer shell, the inner shell, the end cover, the first partition plate and the second partition plate, and the outer shell, the inner shell, the end cover, the first partition plate and the second partition plate are all made of steel.

10. A water-cooled motor, characterized in that: Comprising a base as claimed in any one of claims 1 to 9.

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