Motor shell and motor with same

Abstract

The utility model discloses a motor housing and a motor with the same, and the motor housing comprises a housing which is provided with a first cavity and a first through hole communicated with the first cavity; the heat dissipation plate is arranged on the outer wall face of the machine shell, and a second through hole is formed in the heat dissipation plate; the junction box is arranged on the side, away from the machine shell, of the heat dissipation plate, the junction box is provided with a second cavity and a third through hole communicating with the second cavity, and the first through hole, the second through hole and the third through hole are opposite and communicate; the isolation sleeve is an integrated piece and comprises a sleeve body and a partition plate, the sleeve body is in a ring shape extending in the circumferential direction of the second through hole, the two ends of the sleeve body in the axial direction are in sealed connection with the machine shell and the junction box respectively, and the partition plate is arranged in the sleeve body and used for blocking a channel in the sleeve body. And a wire passing hole communicated with the first cavity and the second cavity is formed in the partition plate. According to the motor shell, the sealing performance can be guaranteed, the number of parts is reduced, the assembly process is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor housing and a motor having the same. Background Art

[0002] In the related art, wire holes are usually opened on the casing and junction box of the servo motor to allow the wiring harness in the casing to pass through. However, the setting of the wire holes is easy to destroy the sealing of the casing and the junction box. In order to seal here, the prior art usually adds components such as isolation sleeves, sealing rings and rubber pads. The motor has many parts, the assembly is complicated, and the cost is high. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a motor housing, which can ensure sealing, reduce the number of parts, simplify the assembly process, reduce the assembly difficulty, and reduce the production and processing cost.

[0004] The utility model also provides a motor, which comprises the motor housing mentioned above.

[0005] The motor housing according to the embodiment of the utility model includes: a casing, the casing having a first cavity and a first through hole connected to the first cavity; a heat sink, the heat sink is arranged on the outer wall of the casing, and the heat sink has a second through hole; a junction box, the junction box is arranged on the side of the heat sink facing away from the casing, the junction box has a second cavity and a third through hole connected to the second cavity, the first through hole, the second through hole and the third through hole are opposite and connected; an isolation sleeve, the isolation sleeve is an integral piece and includes a sleeve body and a partition, the sleeve body is annular and extends in the circumferential direction of the second through hole, the two ends of the sleeve body in the axial direction are respectively sealed with the casing and the junction box, the partition is arranged in the sleeve body and is used to block the channel inside the sleeve body, and the partition is provided with a wire hole connecting the first cavity and the second cavity.

[0006] According to the motor housing of the embodiment of the utility model, the isolation sleeve includes a sleeve body and a partition, and the two ends of the sleeve body in the axial direction are respectively sealed and connected to the casing and the junction box, which can play a sealing effect between the casing and the sleeve body, and between the junction box and the sleeve body. The partition is arranged in the sleeve body and is used to block the channel inside the sleeve body. The partition is provided with a wire hole connecting the first cavity and the second cavity, so that the wire harness in the first cavity can extend into the second cavity through the wire hole, which can play a role in positioning and fixing the wire harness to a certain extent, making the wire harness neat and orderly, and reducing the entanglement and crossing between different wire harnesses. In addition, the isolation sleeve is an integrated piece, which can reduce the structural complexity of the motor housing on the basis of ensuring the sealing of the motor housing, reduce the number of parts of the motor housing, simplify the assembly process of the motor housing, reduce the difficulty of assembling the motor housing, and reduce the production and processing cost of the motor housing.

[0007] In addition, the motor housing according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the inner circumferential wall of the second through hole is retracted into the inner circumferential walls of the first through hole and the third through hole, the sleeve body is located in the second through hole and the two end surfaces in the axial direction are respectively abutted and sealed against the surfaces of the housing and the junction box facing each other.

[0009] In some embodiments, at least one of the two ends of the sleeve body in the axial direction has a sealing structure, and the sealing structure extends along the circumferential direction of the sleeve body and is used to abut against the housing or the junction box.

[0010] In some embodiments, the sealing structure includes: a first sealing lip and a second sealing lip, one end of the first sealing lip and one end of the second sealing lip are both connected to the axial end surface of the sleeve body, the first sealing lip and the second sealing lip are annular and extend in the circumferential direction of the sleeve body and are arranged in the radial direction of the sleeve body, and along the axial direction of the sleeve body, the free end of the first sealing lip and the free end of the second sealing lip extend obliquely in a direction away from each other; or, the sealing structure includes: a third sealing lip, one end of the third sealing lip is connected to the axial end of the sleeve body The third sealing lip is connected to the surface and is annular in shape extending in the circumferential direction of the sleeve body, and the free end of the third sealing lip is inclined toward one radial side along the axial direction of the sleeve body; or, the sealing structure includes: a protrusion, which is one or a plurality of protrusions spaced apart in the radial direction of the sleeve body, and the protrusion is annular in shape extending in the circumferential direction of the sleeve body, and the width of the protrusion gradually decreases in the direction from the fixed end to the free end of the protrusion; or, the sealing structure is formed by the axial end face of the sleeve body, and the axial end face of the sleeve body directly abuts against the casing or the junction box.

[0011] In some embodiments, the wire passing holes are arranged in a plurality of groups at intervals, and each group includes at least one wire passing hole.

[0012] In some embodiments, in a direction from the housing to the junction box, a cross-sectional area of ​​the wire hole gradually decreases.

[0013] In some embodiments, the wire hole includes a first hole segment and a second hole segment, the first hole segment is located on a side of the second hole segment close to the casing, and in the direction from the casing to the junction box, the cross-sectional area of ​​the first hole segment gradually decreases, while the cross-sectional area of ​​the second hole segment remains unchanged.

[0014] In some embodiments, the isolation sleeve is an elastic member; and / or, along the axial direction of the sleeve body, the size of the partition is smaller than the size of the sleeve body.

[0015] The motor according to the embodiment of the utility model comprises: the above-mentioned motor housing; a wiring harness, wherein the wiring harness is passed through the wiring hole.

[0016] According to the motor of the embodiment of the utility model, the motor housing is provided with the above-mentioned motor housing, and the isolation sleeve includes a sleeve body and a partition. The two ends of the sleeve body in the axial direction are respectively sealed and connected with the housing and the junction box, which can play a sealing effect between the housing and the sleeve body, and between the junction box and the sleeve body. The partition is arranged in the sleeve body and is used to block the channel inside the sleeve body. The partition is provided with a wire hole connecting the first cavity and the second cavity, so that the wire harness in the first cavity can extend into the second cavity through the wire hole, which can play a role in positioning and fixing the wire harness to a certain extent, making the wire harness neat and orderly, and reducing the entanglement and crossing between different wire harnesses. In addition, the isolation sleeve is an integrated piece, which can reduce the structural complexity of the motor housing on the basis of ensuring the sealing of the motor housing, reduce the number of parts of the motor housing, simplify the assembly process of the motor housing, reduce the difficulty of assembling the motor housing, and reduce the production and processing cost of the motor housing.

[0017] In addition, the motor according to the utility model may also have the following additional technical features:

[0018] In some embodiments, the wiring harness and the wire hole are interference fit or transition fit.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a partial schematic diagram of a motor according to an embodiment of the utility model;

[0022] Figure 2 is a three-dimensional diagram of an isolation sleeve of a motor housing according to an embodiment of the utility model;

[0023] Figure 3 is a cross-sectional view of an isolation sleeve of a motor housing according to a first embodiment of the utility model;

[0024] Figure 4 is a cross-sectional view of an isolation sleeve of a motor housing according to a second embodiment of the utility model;

[0025] Figure 5 is a partial schematic diagram of an isolation sleeve of a motor housing according to a third embodiment of the utility model;

[0026] Figure 6 is a partial schematic diagram of an isolation sleeve of a motor housing according to a fourth embodiment of the utility model;

[0027] Figure 7 is a partial schematic diagram of an isolation sleeve of a motor housing according to a fifth embodiment of the utility model;

[0028] Figure 8 is a partial schematic diagram of an isolation sleeve of a motor housing according to a sixth embodiment of the utility model;

[0029] Fig. 9 is a partial schematic diagram of an isolation sleeve of a motor housing according to a seventh embodiment of the utility model;

[0030] Fig.10 It is a partial schematic diagram of an isolation sleeve of a motor housing according to an eighth embodiment of the utility model.

[0031] Reference numerals:

[0032] 100. Motor;

[0033] 10. Motor housing;

[0034] 1. housing; 11. first cavity; 12. first through hole;

[0035] 2. heat sink; 21. second through hole;

[0036] 3. Junction box; 31. Second cavity; 32. Third through hole;

[0037] 4. Isolation sleeve; 41. Sleeve body; 42. Partition plate; 43. Wire holes; 431. First hole section; 432. Second hole section; 433. First group of wire holes; 434. Second group of wire holes; 435. Third group of wire holes; 436. Fourth group of wire holes; 44. Sealing structure; 441. First sealing lip; 442. Second sealing lip; 443. Protrusion;

[0038] 20. Wiring harness. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The motor housing 10 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0044] like Figure 1 As shown, the motor housing 10 according to the embodiment of the utility model includes a housing 1, a heat sink 2, a junction box 3 and an isolation sleeve 4.

[0045] Specifically, refer to the attached Figure 1 As shown, the housing 1 can protect the internal structure of the housing 1, prevent the internal structure from being exposed and damaged, and ensure the service life of the motor 100. The housing 1 has a first cavity 11 and a first through hole 12 connected to the first cavity 11. Further, the heat sink 2 is arranged on the outer wall surface of the housing 1. The heat sink 2 can exchange heat with the surrounding air through the surface, and dissipate the heat generated inside the housing 1 to the surrounding environment, thereby effectively reducing the temperature inside the motor 100, ensuring that the motor 100 operates within the normal operating temperature range, and thus extending the service life of the motor 100. The heat sink 2 has a second through hole 21.

[0046] Further, see Appendix Figure 1 As shown, the junction box 3 is arranged on the side of the heat sink 2 away from the casing 1, and the junction box 3 has a second cavity 31 and a third through hole 32 connected to the second cavity 31. The first through hole 12, the second through hole 21 and the third through hole 32 are opposite to each other and connected. A connector is provided in the second cavity 31. The wiring harness 20 in the first cavity 11 can pass through the first through hole 12, the second through hole 21 and the third through hole 32 in sequence and extend into the second cavity 31, and dock with the connector in the second cavity 31, so that the wiring harness 20 can be effectively managed, the wiring harness 20 inside the motor 100 is neat and orderly, the entanglement and crossing between different wiring harnesses 20 are reduced, and the motor 100 is convenient for inspection, maintenance and replacement.

[0047] Further, see the attached Figure 1 As shown, the isolation sleeve 4 is an integral piece and includes a sleeve body 41 and a partition plate 42. The sleeve body 41 is an annular shape extending along the circumferential direction of the second through hole 21. The sleeve body 41 is axially (see the attached Figure 1 The two ends of the motor housing 100 (in the direction a shown in the figure) are sealed and connected to the casing 1 and the junction box 3 respectively, which can play a sealing effect between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41, to prevent dust, water or other foreign matter from entering the motor housing 10 through the gap between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41, to avoid damaging the components inside the motor 100, and to ensure the normal operation of the motor 100.

[0048] Further, see Attachment Figure 1As shown, the partition 42 is arranged in the sleeve body 41 and is used to block the channel inside the sleeve body 41. The partition 42 is provided with a wire hole 43 connecting the first cavity 11 and the second cavity 31, so that the wire harness 20 in the first cavity 11 can extend into the second cavity 31 through the wire hole 43, which can position and fix the wire harness 20 to a certain extent, making the wire harness 20 neat and orderly and reducing entanglement and crossing between different wire harnesses 20.

[0049] It can be understood that the isolation sleeve 4 is an integrated part, which can reduce the structural complexity of the motor housing 10, reduce the number of parts of the motor housing 10, simplify the assembly process of the motor housing 10, reduce the difficulty of assembling the motor housing 10, and reduce the production and processing cost of the motor housing 10 on the basis of ensuring the sealing of the motor housing 10.

[0050] According to the motor housing 10 of the embodiment of the utility model, the isolation sleeve 4 includes a sleeve body 41 and a partition 42. The two ends of the sleeve body 41 in the axial direction are sealed and connected to the housing 1 and the junction box 3 respectively, which can play a sealing effect between the housing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41. The partition 42 is arranged in the sleeve body 41 and is used to block the channel inside the sleeve body 41. The partition 42 is provided with a wire hole 43 connecting the first cavity 11 and the second cavity 31, so that the wire harness 20 in the first cavity 11 can extend into the second cavity 31 through the wire hole 43, which can play a role in positioning and fixing the wire harness 20 to a certain extent, making the wire harness 20 neat and orderly, and reducing the entanglement and crossing between different wire harnesses 20. In addition, the isolation sleeve 4 is an integrated piece, which can reduce the structural complexity of the motor housing 10 on the basis of ensuring the sealing of the motor housing 10, reduce the number of parts of the motor housing 10, simplify the assembly process of the motor housing 10, reduce the assembly difficulty of the motor housing 10, and reduce the production and processing cost of the motor housing 10.

[0051] In some embodiments of the present invention, refer to the attached Figure 1 As shown, the inner circumferential wall of the second through hole 21 is retracted into the inner circumferential wall of the first through hole 12 and the third through hole 32, the sleeve body 41 is located in the second through hole 21, and the two end faces in the axial direction are respectively abutted and sealed against the surfaces of the casing 1 and the junction box 3 facing each other. It can be understood that in the prior art, sealing rings are usually additionally arranged between the casing and the isolation sleeve, and between the junction box and the isolation sleeve. The utility model makes the two end faces in the axial direction of the sleeve body 41 respectively abut against the casing 1 and the junction box 3, without the need to arrange additional sealing rings, which can reduce the number of parts of the motor housing 10, simplify the assembly process of the motor housing 10, reduce the difficulty of assembling the motor housing 10, and thus reduce the production and processing cost of the motor housing 10.

[0052] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 3 As shown, at least one of the two ends in the axial direction of the sleeve body 41 has a sealing structure 44, which extends along the circumferential direction of the sleeve body 41 and is used to abut against the casing 1 or the terminal box 3. The sealing structure 44 can enhance the sealing effect between the sleeve body 41 and the casing 1 or between the sleeve body 41 and the terminal box 3, further preventing dust, water or other foreign matter outside the motor casing 10 from entering the interior of the motor casing 10 through the gap between the casing 1 and the sleeve body 41, and between the terminal box 3 and the sleeve body 41, thereby ensuring the dustproof and waterproof capabilities of the motor casing 10 and extending the service life of the motor 100.

[0053] It can be understood that only the end of the sleeve body 41 facing the casing 1 may be provided with the sealing structure 44, and the end of the sleeve body 41 facing the junction box 3 may not be provided with the sealing structure 44, and only the sealing effect between the sleeve body 41 and the casing 1 may be strengthened; or only the end of the sleeve body 41 facing the junction box 3 may be provided with the sealing structure 44, and the end of the sleeve body 41 facing the casing 1 may not be provided with the sealing structure 44, and only the sealing effect between the sleeve body 41 and the junction box 3 may be strengthened; or both ends of the sleeve body 41 in the axial direction may be provided with the sealing structure 44, and the sealing effects between the sleeve body 41 and the casing 1 and between the sleeve body 41 and the junction box 3 may be strengthened at the same time.

[0054] It should be noted that if Figure 2 and attached Figure 3 As shown, the sealing structure 44 is an integral part with the sleeve body 41 and the partition 42, which can reduce the number of parts of the motor housing 10, simplify the assembly process of the motor housing 10, reduce the difficulty of assembling the motor housing 10, and reduce the production and processing cost of the motor housing 10 while ensuring the sealing of the motor housing 10.

[0055] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 3As shown, the sealing structure 44 includes a first sealing lip 441 and a second sealing lip 442. One end of the first sealing lip 441 and one end of the second sealing lip 442 are both connected to the axial end surface of the sleeve body 41. The first sealing lip 441 and the second sealing lip 442 are annular and extend in the circumferential direction of the sleeve body 41 and are arranged in the radial direction of the sleeve body 41. Along the axial direction of the sleeve body 41, the free end of the first sealing lip 441 and the free end of the second sealing lip 442 extend obliquely in a direction away from each other. The free end of the first sealing lip 441 and the free end of the second sealing lip 442 are connected to the axial end surface of the sleeve body 41. The free ends of the two sealing lips 442 are both in contact with the casing 1 or the junction box 3, and the free end of the first sealing lip 441 and the free end of the second sealing lip 442 are spaced apart in the radial direction of the sleeve body 41, so as to play a sealing role from two places of the sleeve body 41 spaced apart in the radial direction, and further prevent dust, water or other foreign matter outside the motor casing 10 from entering the interior of the motor casing 10 through the gap between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41, thereby ensuring the dustproof and waterproof capabilities of the motor casing 10 and extending the service life of the motor 100.

[0056] In other embodiments of the present invention, the sealing structure 44 includes a third sealing lip, one end of which is connected to the axial end surface of the sleeve body 41 and is annular and extends in the circumferential direction of the sleeve body 41. Along the axial direction of the sleeve body 41, the free end of the third sealing lip is inclined toward one radial side, and the free end of the third sealing lip is abutted against the casing 1 or the junction box 3, which can facilitate the deformation of the third sealing lip after being squeezed, thereby ensuring the sealing effect of the third sealing lip, and further preventing dust, water or other foreign matter outside the motor casing 10 from entering the interior of the motor casing 10 through the gap between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41, thereby ensuring the dustproof and waterproof capabilities of the motor casing 10 and extending the service life of the motor 100.

[0057] In other embodiments of the present invention, refer to the attached Figure 5 and attached Figure 6 As shown, the sealing structure 44 includes a protrusion 443, which is one or a plurality of protrusions 443 spaced apart in the radial direction of the sleeve body 41, and is annular in shape and extends in the circumferential direction of the sleeve body 41. The width of the protrusion 443 gradually decreases in the direction from the fixed end to the free end of the protrusion 443, and the end of the protrusion 443 facing the casing 1 or the junction box 3 abuts against the casing 1 or the junction box 3, so that the protrusion 443 can be deformed after being squeezed to ensure sealing, and further prevent dust, water or other foreign matter outside the motor housing 10 from entering the interior of the motor housing 10 through the gap between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41, thereby ensuring the dustproof and waterproof capabilities of the motor housing 10 and extending the service life of the motor 100.

[0058] It is understandable that if Figure 5As shown, the protrusion 443 may be one, and the surface of one side of the protrusion 443 facing the housing 1 or the junction box 3 is formed as an arc surface; Figure 6 As shown, the protrusions 443 may also be multiple and spaced apart in the radial direction of the sleeve body 41. Along the axial direction of the sleeve body 41, the cross-section of each protrusion 443 is triangular, so that the cross-section of the sealing structure 44 is formed into a sawtooth shape. The top angle of each triangle is against the casing 1 or the junction box 3, and a sealing effect can be achieved from multiple spaced apart locations to ensure the dustproof and waterproof capabilities of the motor housing 10.

[0059] In other embodiments of the present invention, Figure 7 As shown, the axial end surface of the sleeve body 41 forms a sealing structure 44, and the axial end surface of the sleeve body 42 directly abuts against the housing 1 or the junction box 3, thereby facilitating the production and processing of the sleeve body 42 and reducing the difficulty of production and processing of the isolation sleeve 4.

[0060] It should be noted that when the sealing structures 44 are provided at both ends of the sleeve body 41 in the axial direction, the sealing structures 44 at both ends of the sleeve body 41 in the axial direction may be the same, for example, Figure 3 and Figure 4 As shown, both ends of the sleeve body 41 in the axial direction may be provided with a first sealing lip 441 and a second sealing lip 442; both ends of the sleeve body 41 in the axial direction may be provided with a third sealing lip; Figure 8 and Fig. 9 As shown, the sleeve body 41 may also be provided with protrusions 443 at both ends of the axial direction; Fig.10 As shown, the two end surfaces of the sleeve body 41 in the axial direction may directly abut against the housing 1 and the junction box 3 respectively.

[0061] Furthermore, when the sealing structures 44 are provided at both ends of the sleeve body 41 in the axial direction, the sealing structures 44 at both ends of the sleeve body 41 in the axial direction may also be different, for example, Figure 5 As shown, the end of the sleeve body 41 facing the housing 1 may be provided with a first sealing lip 441 and a second sealing lip 442, and the end of the sleeve body 41 facing the junction box 3 may be provided with a protrusion 443; Figure 6 As shown, the end of the sleeve body 41 facing the housing 1 may be provided with a first sealing lip 441 and a second sealing lip 442, and the end of the sleeve body 41 facing the junction box 3 may be provided with five spaced protrusions 443; Figure 7 As shown, the end of the sleeve body 41 facing the housing 1 may be provided with a first sealing lip 441 and a second sealing lip 442 , and the axial end surface of the sleeve body 41 facing the junction box 3 directly abuts against the junction box 3 .

[0062] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the wire holes 43 are arranged in multiple groups at intervals, each group includes at least one wire hole 43, and the arrangement of multiple groups of wire holes 43 can allow different wire harnesses 20 to pass through respectively, so as to position and fix different wire harnesses 20 respectively, so that the wire harnesses 20 inside the motor 100 are neat and orderly, and the entanglement and crossing between different wire harnesses 20 are reduced. In addition, multiple groups of spaced wire holes 43 can separate wire harnesses 20 with different functions, avoid electromagnetic interference between different wire harnesses 20, and affect the transmission accuracy and sensing accuracy of the signal. At the same time, it can also avoid the friction between the wire harnesses 20 caused by the vibration of the motor 100 during operation, and extend the service life of the wire harness 20. For example, the wire holes 43 can be spaced in two, three, four, five or six groups, and the number of wire holes 43 in each group can be one, two, three, four, five or six, which can be set according to the functional requirements of different wire harnesses 20.

[0063] For example, the electrical signal of the three-phase power line fluctuates, which can easily cause electromagnetic interference to the signal line of the rotary transformer, affecting the sensing accuracy and propagation accuracy of the signal line of the rotary transformer. By spacing out multiple groups of wire holes 43, the three-phase power line can be spatially isolated from the signal line of the rotary transformer, thereby ensuring the sensing accuracy and propagation accuracy of the signal line of the rotary transformer.

[0064] In a specific example, see the attached Figure 2 As shown, the wire holes 43 are arranged in four groups at intervals, and the four groups of wire holes 43 are respectively a first group of wire holes 433, a second group of wire holes 434, a third group of wire holes 435 and a fourth group of wire holes 436. The first group of wire holes 433 includes three wire holes 43 for the three-phase power line to pass through, the second group of wire holes 434 includes two wire holes 43 for the live wire and the neutral wire of the fan power line to pass through, respectively, the third group of wire holes 435 includes six wire holes 43 for the signal wire of the rotary transformer to pass through, which is used to accurately control the speed and position of the motor 100 shaft, and the fourth group of wire holes 436 includes four wire holes 43 for the temperature measuring couple to pass through, which is used to detect the temperature inside the motor 100. It should be noted that the apertures of different wire holes 43 can be different to allow wire harnesses 20 of different sizes to pass through.

[0065] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 3As shown, in the direction from the housing 1 to the junction box 3, the cross-sectional area of ​​the wire hole 43 gradually decreases, and the side wall of the wire hole 43 is inclined toward the axis of the wire hole 43 to form a guiding slope. It can be understood that the wire harness 20 in the motor housing 10 extends from the first cavity 11 through the wire hole 43 into the second cavity 31. By gradually reducing the cross-sectional area of ​​the wire hole 43, the wire harness 20 can be guided through simple processing, and when the wire harness 20 is inserted into the wire hole 43, it is easy to align the wire harness 20 with the wire hole 43, thereby reducing the difficulty of the wire harness 20 passing through the wire hole 43 from the first cavity 11, thereby reducing the difficulty of assembling the motor 100.

[0066] In some embodiments of the present invention, refer to the attached Figure 4 As shown, the wire hole 43 includes a first hole section 431 and a second hole section 432. The first hole section 431 is located on a side of the second hole section 432 close to the housing 1. In the direction from the housing 1 to the junction box 3, the cross-sectional area of ​​the first hole section 431 gradually decreases, and the side wall of the first hole section 431 is inclined toward the axis of the first hole section 431 to form a guiding slope. The cross-sectional area of ​​the second hole section 432 remains unchanged. It can be understood that the wiring harness 20 in the motor housing 10 extends from the first cavity 11 through the wire hole 43 into the second cavity 31. By gradually reducing the cross-sectional area of ​​the first hole section 431, the wiring harness 20 can be guided by simple processing, and when the wiring harness 20 is inserted into the wire hole 43, it is easy to align the wiring harness 20 with the wire hole 43, thereby reducing the difficulty of the wiring harness 20 passing through the wire hole 43 from the first cavity 11, thereby reducing the assembly difficulty of the motor 100.

[0067] In some embodiments of the utility model, the isolation sleeve 4 is an elastic member, which can ensure the sealing performance of the motor housing 10 by extruding and deforming the isolation sleeve 4 by the housing 1 and the junction box 3, and can also play a shock-absorbing role, reduce the friction of the isolation sleeve 4 on the wiring harness 20, and ensure the service life of the wiring harness 20 and the isolation sleeve 4. For example, the isolation sleeve 4 can be a rubber member with good elasticity, good high temperature resistance, good shock-absorbing and noise-reducing performance, and excellent waterproof and sealing performance.

[0068] Further, see Attachment Figure 1 and attached Figure 3 As shown, along the axial direction of the sleeve body 41, the size of the partition 42 is smaller than that of the sleeve body 41. On the basis of ensuring the fixing effect of the partition 42 on the wiring harness 20, it can prevent the portion of the wiring harness 20 in the wire hole 43 from being too long and affecting the normal heat dissipation of the wiring harness 20, and can relatively reduce the production and manufacturing cost of the isolation sleeve 4, and further reduce the production and processing cost of the motor housing 10.

[0069] The utility model also provides a motor 100 having the motor housing 10 of the above embodiment.

[0070] like Figure 1 As shown, the motor 100 according to the embodiment of the present invention includes the motor housing 10 and the wiring harness 20 mentioned above.

[0071] Specifically, refer to the attached Figure 1 As shown, the wiring harness 20 is passed through the wire hole 43, and the wire hole 43 can position and fix the wiring harness 20, thereby ensuring that the wiring harness 20 inside the motor 100 is neat and orderly, reducing entanglement and crossing between different wiring harnesses 20, and facilitating the later inspection, maintenance and replacement of the motor 100, thereby reducing the difficulty of repairing the motor 100 and reducing the repair time of the motor 100.

[0072] According to the motor 100 of the embodiment of the utility model, the motor housing 10 is provided with the above-mentioned motor housing 10, and the isolation sleeve 4 includes a sleeve body 41 and a partition 42. The two ends of the sleeve body 41 in the axial direction are respectively sealed and connected with the casing 1 and the junction box 3, which can play a sealing effect between the casing 1 and the sleeve body 41, and between the junction box 3 and the sleeve body 41. The partition 42 is arranged in the sleeve body 41 and is used to block the channel inside the sleeve body 41. The partition 42 is provided with a wire hole 43 connecting the first cavity 11 and the second cavity 31, so that the wiring harness 20 in the first cavity 11 can extend into the second cavity 31 through the wire hole 43, which can position and fix the wiring harness 20 to a certain extent, so that the wiring harness 20 is neat and orderly, and the entanglement and crossing between different wiring harnesses 20 are reduced. In addition, the isolation sleeve 4 is an integrated part, which can reduce the structural complexity of the motor housing 10, reduce the number of parts of the motor housing 10, simplify the assembly process of the motor housing 10, reduce the difficulty of assembling the motor housing 10, and reduce the production and processing cost of the motor housing 10 while ensuring the sealing of the motor housing 10.

[0073] In some embodiments of the present invention, refer to the attached Figure 1 As shown, the wiring harness 20 and the wire passing hole 43 are interference fit or transition fit, thereby ensuring the positioning and fixing effect of the wire passing hole 43 on the wiring harness 20, preventing the wiring harness 20 from shaking in the wire passing hole 43, reducing the friction of the isolation sleeve 4 on the wiring harness 20, ensuring the service life of the wiring harness 20 and the isolation sleeve 4, ensuring the service life of the motor housing 10, reducing the maintenance frequency of the motor 100, and improving the user experience.

[0074] Other structures and operations of the motor housing 10 and the motor 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor housing, characterized in that: include: A housing having a first cavity and a first through hole communicating with the first cavity; A heat dissipation plate, the heat dissipation plate is arranged on the outer wall surface of the housing, and the heat dissipation plate has a second through hole; A junction box, the junction box is arranged on a side of the heat sink away from the housing, the junction box has a second cavity and a third through hole connected to the second cavity, the first through hole, the second through hole and the third through hole are opposite to each other and connected; The isolation sleeve is an integral piece and includes a sleeve body and a partition. The sleeve body is annular and extends along the circumferential direction of the second through hole. The two ends of the sleeve body in the axial direction are respectively sealed with the casing and the junction box. The partition is arranged in the sleeve body and is used to block the channel inside the sleeve body. The partition is provided with a wire hole connecting the first cavity and the second cavity.

2. The motor housing according to claim 1, characterized in that: The inner circumferential wall of the second through hole is retracted into the inner circumferential walls of the first through hole and the third through hole. The sleeve body is located in the second through hole and both end surfaces in the axial direction are respectively abutted and sealed against the surfaces of the housing and the junction box facing each other.

3. The motor housing according to claim 2, characterized in that: At least one of the two ends of the sleeve body in the axial direction has a sealing structure, and the sealing structure extends along the circumferential direction of the sleeve body and is used to abut against the housing or the junction box.

4. The motor housing according to claim 3, characterized in that: The sealing structure comprises: a first sealing lip and a second sealing lip, one end of the first sealing lip and one end of the second sealing lip are both connected to the axial end surface of the sleeve body, the first sealing lip and the second sealing lip are annular and extend in the circumferential direction of the sleeve body and are arranged in the radial direction of the sleeve body, and along the axial direction of the sleeve body, the free ends of the first sealing lip and the free ends of the second sealing lip extend obliquely in a direction away from each other; Or, the sealing structure comprises: a third sealing lip, one end of which is connected to the axial end surface of the sleeve body and is annular and extends along the circumferential direction of the sleeve body, and along the axial direction of the sleeve body, the free end of the third sealing lip is inclined toward one radial side; Or, the sealing structure comprises: a protrusion, the protrusion is one or a plurality of protrusions spaced apart in the radial direction of the sleeve body, the protrusion is annular and extends in the circumferential direction of the sleeve body, and the width of the protrusion gradually decreases in the direction from the fixed end to the free end of the protrusion; Alternatively, the sealing structure is formed by an axial end surface of the sleeve body, and the axial end surface of the sleeve body directly abuts against the housing or the junction box.

5. The motor housing according to claim 1, characterized in that: The wire passing holes are arranged in a plurality of groups at intervals, and each group includes at least one wire passing hole.

6. The motor housing according to claim 1, characterized in that: In the direction from the housing to the junction box, the cross-sectional area of ​​the wire hole gradually decreases.

7. The motor housing according to claim 1, characterized in that: The wire passing hole includes a first hole segment and a second hole segment, the first hole segment is located on a side of the second hole segment close to the housing, and in the direction from the housing to the junction box, the cross-sectional area of ​​the first hole segment gradually decreases, while the cross-sectional area of ​​the second hole segment remains unchanged.

8. The motor housing according to claim 1, characterized in that: The isolation sleeve is an elastic member; And / or, along the axial direction of the sleeve body, the size of the partition is smaller than the size of the sleeve body.

9. A motor, characterized in that: include: The motor housing according to any one of claims 1 to 8; A wire harness is passed through the wire hole.

10. The motor according to claim 9, characterized in that The wiring harness and the wire passing hole are interference fit or transition fit.

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