Motor

Abstract

The embodiment of the utility model discloses a motor, which comprises a casing, a stator and an output shaft, the stator is arranged in the casing and is connected with the casing, the output shaft is partially arranged in the casing and partially extends out of the casing, and the output shaft can be driven by the stator to move; the motor further comprises an outer housing and a cooling pipe, the housing sleeves the casing, and a mounting space is defined by the outer housing and the casing. The cooling pipe is at least partially arranged in the installation space, and the installation space is filled with heat conduction colloid, so that the part, located in the installation space, of the cooling pipe is fixed in the installation space, and heat of the machine shell is conducted to the cooling pipe; the part, located in the installation space, of the cooling pipe comprises at least two longitudinal sections and at least one transverse section, and the longitudinal sections and the transverse sections are sequentially and alternately connected. The motor is good in cooling effect and compact in structure.

Description

Technical Field

[0001] The present application relates to the field of drivers, and in particular to a motor. Background Art

[0002] At present, due to the progress of society and the continuous innovation of science and technology, motors have become an indispensable and important power provider for the development of science and technology and have been widely used. Motors are devices that convert electrical energy into mechanical energy. During this conversion process, part of the energy will be converted into heat and dissipated, resulting in an increase in the temperature of the motor. The increase in motor temperature will affect the reliability and service life of the motor.

[0003] Research has found that the smaller the internal temperature rise of the motor, the smaller the difference between its maximum output power and the rated power, and the smaller the chance of motor failure. Therefore, internal cooling of the motor is crucial, whether for high-power or low-power motors.

[0004] In addition, the existing peripheral cooling device is large in size and difficult to install, which is not conducive to the transportation and application of the motor.

[0005] Therefore, there is an urgent need for a motor with good cooling effect and compact structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the present application is to provide a motor with good cooling effect and compact structure.

[0007] To achieve the above-mentioned purpose, an embodiment of the present application provides a motor, including a casing, a stator and an output shaft, wherein the stator is arranged in the casing and connected to the casing, the output shaft is partially arranged in the casing and partially extends out of the casing, and the output shaft can move under the drive of the stator; the motor also includes an outer cover shell and a cooling pipe, the outer cover shell is sleeved on the casing, and the outer cover shell and the casing enclose an installation space; the cooling pipe is at least partially arranged in the installation space, and the installation space is filled with heat-conductive glue to fix the part of the cooling pipe located in the installation space in the installation space and conduct the heat of the casing to the cooling pipe; the part of the cooling pipe located in the installation space includes at least two longitudinal sections and at least one transverse section, and the longitudinal sections and the transverse sections are alternately connected in sequence.

[0008] In some embodiments of the present application, the longitudinal segment is extended along the axial direction of the output shaft, and the transverse segment is arranged along the circumferential direction of the output shaft.

[0009] In some embodiments of the present application, the liquid inlet end and the liquid outlet end of the cooling tube are both located outside the installation space, and the liquid inlet end and the liquid outlet end of the cooling tube are respectively connected to the longitudinal section.

[0010] In some embodiments of the present application, an opening communicating with the installation space is formed at one end of the housing, and the liquid inlet and the liquid outlet extend out of the installation space through the opening.

[0011] In some embodiments of the present application, the casing includes a cylinder, a first end cover and a second end cover, the first end cover is arranged at the first end of the cylinder, the second end cover is arranged at the second end of the cylinder, the outer cover shell is sleeved on the cylinder, the first end of the cylinder protrudes toward the direction close to the outer cover shell to form a first protrusion, the outer cover shell protrudes toward the direction close to the cylinder to form a second protrusion, the second protrusion corresponds to the second end of the cylinder, and the cylinder, the outer cover shell, the first protrusion and the second protrusion together enclose the installation space.

[0012] In some embodiments of the present application, a slot is formed on a side of the first protrusion close to the outer cover shell, and an end of the outer cover shell close to the first end cover is snapped into the slot.

[0013] In some embodiments of the present application, the slot is annular and surrounds the cylinder.

[0014] In some embodiments of the present application, one end of the outer cover shell close to the second end cover abuts against the second end cover and is fixedly connected to the second end cover.

[0015] In some embodiments of the present application, the second end cover is fixedly connected to the second protrusion.

[0016] In some embodiments of the present application, the first end cover and the cylinder are fixedly connected.

[0017] Compared with the prior art, in the motor of the embodiment of the present application, the outer cover shell is arranged on the casing, the outer cover shell and the casing enclose an installation space, the cooling pipe is at least partially arranged in the installation space, the part of the cooling pipe located in the installation space includes at least two longitudinal sections and at least one transverse section, the longitudinal sections and the transverse sections are alternately connected in sequence, and the installation space is filled with heat-conducting colloid to fix the part of the cooling pipe located in the installation space in the installation space, and conduct the heat of the casing to the cooling pipe, so that the coolant passing through the cooling pipe can quickly take away the heat of the heat-conducting medium, the casing and the outer cover shell, thereby realizing rapid cooling of the motor as a whole. At the same time, due to the rationality of the above-mentioned structural arrangement, the motor structure is compact while ensuring the cooling effect of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a three-dimensional diagram of the motor according to an embodiment of the present application.

[0020] Figure 2 for Figure 1 A side view of the motor mid-case, outer cover, cooling tube and thermally conductive glue assembly connections are shown.

[0021] Figure 3 for Figure 2 Shown is a cross-sectional view along line AA.

[0022] Figure 4 for Figure 1 An exploded view of the motor shown with the thermal paste hidden. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] First of all, in the description of the embodiments of the present application, it needs to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] Secondly, the terms "first", "second", "third", etc. are only used to distinguish descriptions, without any distinction of order or importance, and cannot be understood as indicating or implying relative importance. The characteristics specified as "first" or "second" may explicitly or implicitly include one or more of such characteristics.

[0028] Furthermore, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted; the term "along a certain direction" does not mean that it must be absolutely parallel to the direction, but can be offset, that is, it only needs to have a component in the direction.

[0029] In addition, in the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, an electromagnetic connection, or even a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, the “and / or” in this application, such as “Feature 1 and / or Feature 2”, refers to the three cases that it can be “Feature 1” alone, “Feature 2” alone, or “Feature 1” plus “Feature 2”. The “and / or” in this application, such as “Feature 1 and / or Feature 2”, refers to the three cases that it can be “Feature 1” alone, “Feature 2” alone, or “Feature 1” plus “Feature 2”.

[0031] See also Figure 1-4 The motor 1 of the embodiment of the present application includes a housing 10, a stator (not shown) and an output shaft 20. The stator is disposed in the housing 10 and connected to the housing 10. The output shaft 20 is partially disposed in the housing 10 and partially extends out of the housing 10. The output shaft 20 can move under the drive of the stator. More specifically, as follows:

[0032] like Figure 3 and 4 As shown, the motor 1 further includes an outer cover shell 30 and a cooling pipe 40, the outer cover shell 30 is sleeved on the housing 10, and the outer cover shell 30 and the housing 10 enclose an installation space 1a; the cooling pipe 40 is partially arranged in the installation space 1a, and the installation space 1a is filled with a heat-conducting colloid 50 to fix the portion of the cooling pipe 40 located in the installation space 1a in the installation space 1a, and to conduct the heat of the housing 10 to the cooling pipe 40, so that the coolant passing through the cooling pipe 40 can take away the heat on the housing 10, the outer cover shell 30 and the heat-conducting colloid 50, thereby achieving the cooling of the motor 1 of the embodiment of the present application. Of course, in other embodiments, the cooling pipe 40 can also be completely arranged in the installation space 1a, so it is not limited to this.

[0033] like Figure 1 and Figure 4 As shown, the portion of the cooling pipe 40 located in the installation space 1a includes 8 longitudinal segments 41 and 7 transverse segments 42, and the longitudinal segments 41 and the transverse segments 42 are alternately connected in sequence, thereby improving the cooling effect of the cooling pipe 40. Of course, in other embodiments, the longitudinal segments may be provided in different numbers such as two, three, four, or five, and the transverse segments 42 are provided according to the number of longitudinal segments, so as to ensure that the pipelines of the cooling pipe are connected, and therefore, it is not limited thereto.

[0034] like Figure 4 As shown, the longitudinal section 41 is extended along the axial direction of the output shaft 20, and the transverse section 42 is arranged along the circumferential direction of the output shaft 20, so as to further ensure the cooling effect of the cooling pipe.

[0035] like Figure 1 and 4 As shown, the liquid inlet end 40a and the liquid outlet end 40b of the cooling tube 40 are both located outside the installation space 1a, and the liquid inlet end 40a and the liquid outlet end 40b of the cooling tube 40 are respectively connected to the longitudinal section 41, so that the coolant can enter the cooling tube 40 from the liquid inlet end 40a, pass through the installation space 1a, and finally from the liquid outlet end 40b, thereby achieving cooling of the thermal conductive glue 50, the casing 10 and the outer cover shell, and improving the convenience of assembly of the motor 1 of the embodiment of the present application.

[0036] like Figure 1 and 4 As shown, an opening 10a communicating with the installation space 1a is formed at one end of the housing 10, and the liquid inlet end 40a and the liquid outlet end 40b extend out of the installation space 1a through the opening 10a, so that the structure of the motor 1 of the embodiment of the present application is reasonable and compact.

[0037] like Figure 1 and 4As shown, the casing 10 includes a cylinder 11, a first end cover 12 and a second end cover 13, the first end cover 12 is arranged at the first end of the cylinder 11, the second end cover 13 is arranged at the second end of the cylinder 11, the outer cover shell 30 is sleeved on the cylinder 11, the first end of the cylinder 11 protrudes toward the direction close to the outer cover shell 30 to form a first protrusion 11a, the outer cover shell 30 protrudes toward the direction close to the cylinder 11 to form a second protrusion 30a, the second protrusion 30a corresponds to the second end of the cylinder 11, the cylinder 11, the outer cover shell 30, the first protrusion 11a and the second protrusion 30a together enclose the installation space 1a, so that the motor 1 of the embodiment of the present application has a reasonable and compact structure, and further ensures the airtightness of the installation space 1a.

[0038] like Figure 3 and Figure 4 As shown, a slot 11b is provided on one side of the first protrusion 11a close to the outer housing 30, and one end of the outer housing 30 close to the first end cover 12 is snapped into the slot 11b, further improving the compactness of the structure of the motor 1 of the embodiment of the application. Figure 4 As shown, the slot 11 b is annular and surrounds the cylinder 11 , further achieving the airtightness of the installation space 1 a and improving the convenience of assembling the motor 1 of the embodiment of the present application.

[0039] like Figure 3 and Figure 4 As shown, one end of the outer cover 30 close to the second end cover 13 abuts against the second end cover 13 and is fixedly connected to the second end cover 13. Figure 3 As shown, the second end cover 13 is fixedly connected to the second protruding portion 30a, but the present invention is not limited thereto.

[0040] like Figure 3 As shown, the second end cover 13 is fixedly connected to the second protruding portion 30a by bolts, but the present invention is not limited thereto.

[0041] like Figure 3 As shown, the first end cover 12 is fixedly connected to the cylinder 11. Specifically, the first end cover 12 is fixedly connected to the cylinder 11 by bolts, but not limited thereto.

[0042] Compared with the prior art, in the motor 1 of the embodiment of the present application, the outer cover shell 30 is sleeved on the casing 10, the outer cover shell 30 and the casing 10 enclose an installation space 1a, the cooling pipe 40 is at least partially arranged in the installation space 1a, and the portion of the cooling pipe 40 located in the installation space 1a includes at least two longitudinal sections 41 and at least one transverse section 42, the longitudinal sections 41 and the transverse sections 42 are alternately connected in sequence, and the installation space 1a is filled with a heat-conducting glue 50 to fix the portion of the cooling pipe 40 located in the installation space 1a in the installation space 1a, and to conduct the heat of the casing 10 to the cooling pipe 40, so that the coolant passing through the cooling pipe 40 can quickly take away the heat of the heat-conducting medium, the casing 10 and the outer cover shell 30, thereby realizing rapid cooling of the motor 1 as a whole. At the same time, due to the rationality of the above-mentioned structural arrangement, the motor 1 is structurally compact while ensuring the cooling effect of the motor 1.

[0043] The above disclosure is only a preferred example of the present application, and its role is to facilitate the technical personnel in this field to understand and implement it, but it cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made within the scope recorded in this application still fall within the scope covered by this application.

Claims

1. A motor, characterized in that: The motor includes a casing, a stator and an output shaft, wherein the stator is arranged in the casing and connected to the casing, the output shaft is partially arranged in the casing and partially extends out of the casing, and the output shaft can move under the drive of the stator; the motor also includes an outer cover shell and a cooling pipe, the outer cover shell is sleeved on the casing, and the outer cover shell and the casing enclose an installation space; the cooling pipe is at least partially arranged in the installation space, and the installation space is filled with heat-conducting glue to fix the part of the cooling pipe located in the installation space in the installation space and conduct the heat of the casing to the cooling pipe; the part of the cooling pipe located in the installation space includes at least two longitudinal sections and at least one transverse section, and the longitudinal sections and the transverse sections are alternately connected in sequence.

2. The motor according to claim 1, characterized in that The longitudinal section is extended along the axial direction of the output shaft, and the transverse section is arranged along the circumferential direction of the output shaft.

3. The motor according to claim 1, characterized in that The liquid inlet end and the liquid outlet end of the cooling pipe are both located outside the installation space, and the liquid inlet end and the liquid outlet end of the cooling pipe are respectively connected to the longitudinal section.

4. The motor according to claim 3, characterized in that An opening communicating with the installation space is formed at one end of the housing, and the liquid inlet and the liquid outlet extend out of the installation space through the opening.

5. The motor according to claim 1, characterized in that The casing includes a cylinder, a first end cover and a second end cover, the first end cover is arranged at the first end of the cylinder, the second end cover is arranged at the second end of the cylinder, the outer cover shell is sleeved on the cylinder, the first end of the cylinder protrudes toward the direction close to the outer cover shell to form a first protrusion, the outer cover shell protrudes toward the direction close to the cylinder to form a second protrusion, the second protrusion corresponds to the second end of the cylinder, and the cylinder, the outer cover shell, the first protrusion and the second protrusion together enclose the installation space.

6. The motor according to claim 5, characterized in that A clamping groove is formed on one side of the first protrusion close to the outer cover shell, and one end of the outer cover shell close to the first end cover is clamped in the clamping groove.

7. The motor according to claim 6, characterized in that The clamping groove is annular and surrounds the cylinder.

8. The motor according to claim 5, characterized in that One end of the outer cover shell close to the second end cover abuts against the second end cover and is fixedly connected to the second end cover.

9. The motor according to claim 5, characterized in that The second end cover is fixedly connected to the second protrusion.

10. The motor according to claim 5, characterized in that The first end cover is fixedly connected to the cylinder.

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