An outlet structure and motor

Abstract

The application provides a wire outlet structure and a motor. The wire outlet structure comprises an end cover, a plastic sealing part and a wire outlet assembly. The plastic sealing part has a first mounting end, and the end cover has a second mounting end. The first mounting end is assembled with the second mounting end, and the first mounting end and the second mounting end have an assembly gap therebetween. The wire outlet assembly comprises a sealing ring and a wire outlet sheath. The wire outlet sheath has a wire outlet port. The side of the wire outlet sheath away from the wire outlet port is provided with the sealing ring. The outer edge of the first mounting end or the outer edge of the second mounting end is provided with a mounting groove. The wire outlet sheath is mounted in the mounting groove. The sealing ring is filled in the assembly gap. The sealing ring is filled in the assembly gap between the first mounting end of the plastic sealing part and the second mounting end of the end cover, so as to form a waterproof barrier, prevent water flow from entering the interior of the motor, and effectively protect the internal elements of the motor from water erosion.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and particularly relates to a wire outlet structure and an electric machine. BACKGROUND

[0002] With the expansion of the use range of the DC brushless motor, the use environment is increasingly harsh, and the requirements for the motor structure are increasingly stringent. The existing DC brushless motor adopts a combined structure of an injection molding part, a stretched end cover and a wire outlet clamp. There is a gap between the injection molding part and the stretched end cover, and between the injection molding part and the wire outlet clamp. Considering the installation of the wire outlet clamp, water is easy to enter the connection part after the injection molding part is connected with the end cover, and water is easy to enter the motor in a high requirement environment. SUMMARY

[0003] The application provides a wire outlet structure and an electric machine, which can solve the technical problem that water is easy to enter the connection part after the injection molding part is connected with the end cover, and water is easy to enter the motor in a high requirement environment.

[0004] The application provides a wire outlet structure, which comprises an end cover, a plastic sealing part and a wire outlet assembly.

[0005] The plastic sealing part has a first mounting end, the end cover has a second mounting end, the first mounting end is assembled with the second mounting end, and the first mounting end and the second mounting end have an assembly gap therebetween.

[0006] The wire outlet assembly comprises a sealing ring and a wire outlet sheath, the wire outlet sheath has a wire outlet port, one side of the wire outlet sheath away from the wire outlet port is provided with the sealing ring, an outer edge of the first mounting end or an outer circle of the second mounting end is provided with a mounting groove, the wire outlet sheath is mounted in the mounting groove, and the sealing ring is filled in the assembly gap.

[0007] In some embodiments, the outer edge of the first mounting end is provided with the mounting groove, the sealing ring is sleeved on the outer circumferential wall of the first mounting end, and the inner circumferential wall of the second mounting end is pressed against the sealing ring, so that the sealing ring is filled in the assembly gap.

[0008] In some embodiments, one end of the wire outlet sheath is directed to the plastic sealing part, the other end of the wire outlet sheath has the wire outlet port, the sealing ring is provided with a first protrusion, and the first protrusion is inlaidly matched with the wire outlet sheath.

[0009] In some embodiments, the first protrusion is arranged on the radially inner side of the sealing ring, a stepped gap is formed between the first protrusion and the wire outlet sheath, and the outer circumferential wall of the second mounting end is embedded in the stepped gap.

[0010] In some embodiments, the wire outlet sheath comprises a sheath body, a connecting boss and a support connected in sequence, the sheath body has the wire outlet at one end away from the connecting boss, and the sheath body extends out of the plastic package at the end away from the connecting boss; the connecting boss is installed in the mounting groove, the sealing ring is connected with the connecting boss, and the support is located in the radial inner side of the sealing ring and is in a mosaic fit with the plastic package.

[0011] In some embodiments, the support has a wire passing hole, a wire harness channel is formed in the wire outlet sheath, one end of the wire harness channel penetrates through the support and communicates with the wire passing hole, and the other end of the wire harness channel penetrates through the connecting boss and the sheath body in sequence.

[0012] In some embodiments, an inner wall of the wire passing hole is provided with a wire leaking groove, and the wire harness is bent out of the wire in the wire leaking groove.

[0013] In some embodiments, two wire passing grooves are arranged on the end face of the support away from the connecting boss, and the two wire passing grooves are respectively located on both sides of the wire passing hole.

[0014] In some embodiments, the two ends of the support are bent in the circumferential direction of the plastic package, so that the side wall of the support is in a mosaic fit with the plastic package, and the support is used to seal the gap between the plastic package and the sheath body.

[0015] A motor comprising a wire outlet structure, wherein the wire outlet structure is the wire outlet structure described above.

[0016] The wire outlet structure and the motor provided by the application have the following beneficial effects:

[0017] In the application, in a high-demand waterproof environment, the sealing ring is filled in the assembly gap between the first mounting end of the plastic package and the second mounting end of the end cover. When external water flow impacts the motor, the elastic material of the sealing ring can tightly fit the inner wall of the assembly gap, forming a waterproof barrier to prevent water flow from entering the interior of the motor, effectively protecting the internal elements of the motor from water erosion, avoiding short circuit, corrosion and other faults caused by water ingress, and ensuring the normal operation of the motor in a humid or water-splashing harsh environment. The wire harness is worn in the wire outlet sheath, the wire outlet sheath is installed in the mounting groove, and the sealing ring is located on the side away from the wire outlet of the wire outlet sheath. The sealing ring can seal and fix the wire harness to some extent, prevent the wire harness from shaking and displacing during the operation of the motor, reduce the possibility of damage to the wire harness due to friction with surrounding parts, and also help maintain the sealing performance of the wire outlet, avoiding the intrusion of external substances into the interior of the motor from the wire outlet. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the field, other drawings can be obtained from the provided drawings without creative labor.

[0019] Figure 1 It is an exploded view of the wire outlet structure of the embodiment of the present application.

[0020] Figure 2 It is a schematic view of the wire outlet assembly of the embodiment of the present application.

[0021] Figure 3 It is a schematic view of the wire outlet assembly of the embodiment of the present application.

[0022] Figure 4 It is a top view of the wire outlet assembly of the embodiment of the present application.

[0023] Figure 5 It is a schematic view of the sealing ring of the embodiment of the present application.

[0024] Figure 6 It is a schematic view of the connection between the sealing ring and the sheath body of the embodiment of the present application.

[0025] Figure 7 It is a schematic view of the step gap of the embodiment of the present application.

[0026] The drawings: 1-end cover; 101-second mounting end; 2-plastic sealing part; 211-mounting groove; 201-first mounting end; 3-wire outlet assembly; 4-sealing ring; 401-first protrusion; 5-wire outlet sheath; 501-wire outlet; 502-step gap; 51-sheath body; 52-connection boss; 53-supporting part; 531-wire passing hole; 532-wire leakage groove; 533-wire passing groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and by no means as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or positional relationship are generally based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without the opposite description, these orientation words do not indicate and imply that the device or element indicated must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0029] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures.

[0030] For reference Figures 1 to 5 As shown, according to the embodiment of the present application, a wire outlet structure is provided, which comprises an end cover 1, a plastic sealing part 2 and a wire outlet assembly 3; the plastic sealing part 2 has a first mounting end 201, the end cover 1 has a second mounting end 101, the first mounting end 201 and the second mounting end 101 are assembled, and there is an assembly gap between the first mounting end 201 and the second mounting end 101; the wire outlet assembly 3 comprises a sealing ring 4 and a wire outlet sheath 5, the wire outlet sheath 5 has a wire outlet port 501, the side of the wire outlet sheath 5 away from the wire outlet port 501 is provided with the sealing ring 4, the outer edge of the first mounting end 201 or the outer circle of the second mounting end 101 is provided with a mounting groove 211, the wire outlet sheath 5 is mounted in the mounting groove 211, and the sealing ring 4 is filled in the assembly gap.

[0031] Specifically, the mounting groove 211 is pre-opened on the outer edge of the first mounting end 201 or the outer edge of the second mounting end 101, the wire harness is worn in the wire outlet sheath 5, the wire outlet sheath 5 is aligned with the position of the mounting groove 211, and then it is mounted into the mounting groove 211, so as to ensure that the wire outlet sheath 5 is firmly and accurately installed, and the direction of the wire outlet port 501 thereof meets the setting requirements. The first mounting end 201 of the plastic sealing part 2 is aligned with the second mounting end 101 of the end cover 1, and the two are assembled, during the assembly process, the coaxiality and perpendicularity of the two are maintained. After installation, the sealing ring 4 can completely fill the assembly gap between the first mounting end 201 and the second mounting end 101, and the wire inside the motor is led out from the wire outlet port 501 of the wire outlet sheath 5.

[0032] It is worth mentioning that the sealing ring 4 is preferably sleeved on the outer peripheral wall of the first mounting end 201 or the outer peripheral wall of the second mounting end 101, and after the end cover 1 is assembled with the plastic sealing member 2, the sealing ring 4 can be filled in the assembly gap.

[0033] In this embodiment, in a high-demand waterproof environment, the sealing ring 4 is filled in the assembly gap between the first mounting end 201 of the plastic sealing member 2 and the second mounting end 101 of the end cover 1. When the external water flow impacts the motor, the elastic material of the sealing ring 4 enables it to closely fit the inner wall of the assembly gap, forming a waterproof barrier to prevent water flow from entering the motor interior, effectively protecting the internal components of the motor from water erosion, avoiding short circuit, corrosion and other failures caused by water ingress, and ensuring the normal operation of the motor in a humid or water-splashing harsh environment. The wire harness is threaded in the wire outlet sheath 5, the wire outlet sheath 5 is installed in the mounting groove 211, and the sealing ring 4 is located on the side of the wire outlet sheath 5 away from the wire outlet 501. The sealing ring 4 can seal and fix the wire harness to some extent, prevent the wire harness from shaking and moving during the operation of the motor, reduce the possibility of damage to the wire harness due to friction with surrounding components, and at the same time help maintain the sealing performance at the wire outlet 501 to prevent external substances from entering the motor interior through the wire outlet 501.

[0034] In the embodiment, the sealing ring 4 fills the assembly gap between the first mounting end 201 of the plastic sealing member 2 and the second mounting end 101 of the end cover 1, effectively preventing foreign matters such as moisture and dust from entering the motor from the assembly gap; the wire outlet sheath 5 is installed in the mounting groove 211, and the wire harness is wrapped therein, so that the wire harness outlet position is isolated from the external environment, and foreign matters are prevented from invading from the periphery of the wire outlet 501. The two jointly build a comprehensive sealing and protection system for the motor wire outlet part, greatly improving the protection capability of the motor in harsh environments and meeting the requirements of high protection grade. The sealing ring 4 is set and the wire outlet sheath 5 is installed in the mounting groove 211, and the two work together, even if one of them has a small gap or loosens due to accidental circumstances (such as slight bumping, long-term vibration, etc.), the other component can also play a certain compensation role, maintain the overall sealing and protection effect, improve the reliability and stability of the motor protection performance, and reduce the risk of motor failure due to sealing failure. The wire outlet sheath 5 is installed in the mounting groove 211, which plays a positioning and supporting role for the wire outlet 501 part, so that the wire harness outlet position is more stable; the sealing ring 4 fills the assembly gap, also plays a buffering and filling role, so that the assembly between the plastic sealing member 2 and the end cover 1 is more compact and stable. The two jointly enhance the overall stability of the motor wire outlet structure, reduce the problems such as wire harness shaking and component loosening caused by factors such as vibration and impact during motor operation, and improve the reliability of motor operation. The wire outlet sheath 5 provides a neat and orderly wire outlet channel for the wire harness, facilitating the connection and arrangement of the internal wire harness of the motor with the external power supply line and load line; at the same time, the cooperative sealing effect of the wire outlet sheath 5 and the sealing ring 4 makes the wire harness connection part in a relatively clean and stable environment, which is conducive to subsequent maintenance and repair work, and improves the maintainability of the motor.

[0035] For reference Figures 1 to 5 As shown in the figure, the outer edge of the first mounting end 201 is provided with a mounting groove 211, the sealing ring 4 is sleeved on the outer peripheral wall of the first mounting end 201, and the inner peripheral wall of the second mounting end 101 is pressed and sealed with the sealing ring 4, so that the sealing ring 4 fills the assembly gap.

[0036] Specifically, the wire harness is inserted into the outlet sheath 5, and the outlet sheath 5 with the wire harness is embedded in the installation groove 211 at the outer edge of the first mounting end 201 after alignment. The sealing ring 4 is sleeved on the outer peripheral wall of the first mounting end 201, and attention should be paid to the correct installation position of the sealing ring 4 to ensure that it can completely cover the subsequent assembly gap position. The second mounting end 101 of the end cover 1 is aligned with the first mounting end 201 of the plastic sealing part 2, and the coaxiality and perpendicularity of the two are maintained to ensure the accuracy and sealing performance of the assembly. The second mounting end 101 of the end cover 1 is pressed towards the first mounting end 201, so that the inner peripheral wall of the second mounting end 101 gradually presses and seals the sealing ring 4. When the end cover 1 and the plastic sealing part 2 are assembled, the wires inside the motor are led out from the outlet port 501 of the outlet sheath 5.

[0037] In the embodiment, the shape and size of the installation groove 211 match the outlet sheath 5, providing an accurate installation position for the outlet sheath 5, ensuring that the outlet sheath 5 can be accurately installed at the predetermined position, and ensuring that the direction and position of the outlet port 501 meet the setting requirements. After the outlet sheath 5 is embedded in the installation groove 211, it is tightly combined with the first mounting end 201, enhancing the installation stability of the outlet sheath 5 and preventing the outlet sheath 5 from loosening or shifting due to vibration, impact and other factors during motor operation, thereby ensuring the stability of the wire harness outlet. The installation groove 211 provides a convenient condition for the installation of the sealing ring 4, and the sealing ring 4 can be more accurately sleeved on the outer peripheral wall of the first mounting end 201. When the second mounting end 101 of the end cover 1 is pressed against the sealing ring 4, the installation groove 211 can help the sealing ring 4 better fill the assembly gap, ensuring the reliability of the sealing effect. In cooperation with the sealing ring 4, the installation groove 211 makes the sealing performance of the entire outlet structure more perfect. The outlet sheath 5 is installed in the groove, wrapping the wire harness, reducing the channel for external moisture, dust and other foreign matters to invade the motor interior from the periphery of the outlet port 501, and together with the sealing ring 4, it builds a comprehensive sealing and protection system, effectively improving the waterproof and dustproof capability of the motor and meeting the requirements of high protection level.

[0038] In the embodiment, the sealing ring 4 is sleeved and pressed to fully fill the assembly gap between the first mounting end 201 and the second mounting end 101, achieving tight fitting and effectively preventing external moisture, dust and other foreign matters from entering the motor interior, meeting the requirements of high protection level. The pressing process causes the sealing ring 4 to deform under stress, generating radial force to tightly press the first mounting end 201 and the second mounting end 101 together, enhancing the assembly tightness between the two and reducing the possibility of loosening, thereby improving the overall stability of the motor outlet structure.

[0039] For reference Figures 1 to 5As shown, the outgoing line sheath 5 includes an outgoing sheath body 51, a connecting boss 52, and a support 53 connected in sequence. The outgoing sheath body 51 has an outgoing line port 501 at an end away from the connecting boss 52, and the end of the outgoing sheath body 51 away from the connecting boss 52 extends out of the plastic package 2. The connecting boss 52 is installed in the mounting groove 211, the sealing ring 4 is connected with the connecting boss 52, and the support 53 is located radially inside the sealing ring 4 and is in inlaying cooperation with the plastic package 2.

[0040] Specifically, the support 53 is embedded in a predetermined position inside the plastic package 2, ensuring that the support 53 is tightly fitted with the plastic package 2, so that the support 53 and the plastic package 2 are firmly inlaid together, ensuring that the support 53 does not loosen or shift during the operation of the motor, providing stable support for the outgoing line sheath 5. The wire harness inside the motor is passed through the support 53, then through the connecting boss 52 and the sheath body 51, and the outgoing line sheath 5 with the wire harness is aligned with the mounting groove 211 of the first mounting end 201, and the connecting boss 52 is accurately inserted into the mounting groove 211. When installing, it is necessary to ensure that the connecting boss 52 and the mounting groove 211 are matched in shape and size to achieve tight fit. The sealing ring 4 is sleeved on the outer peripheral wall of the first mounting end 201, the second mounting end 101 of the end cover 1 is aligned with the first mounting end 201 of the plastic package 2, and the coaxiality and perpendicularity of the two are maintained. The second mounting end 101 of the end cover 1 is pressed towards the first mounting end 201, so that the inner peripheral wall of the second mounting end 101 gradually presses and closes the sealing ring 4, until the sealing ring 4 completely fills the assembly gap between the first mounting end 201 and the second mounting end 101, forming a reliable sealing effect. When the end cover 1 and the plastic package 2 are assembled, the wires inside the motor are led out from the outgoing line port 501 of the outgoing line sheath 5.

[0041] In this embodiment, by embedding the support 53 in a predetermined position inside the plastic package 2 and tightly fitting and firmly inlaying with the plastic package 2, a stable basic support is provided for the outgoing line sheath 5. This ensures that the outgoing line sheath 5 does not loosen or shift due to vibration, impact and other factors during the operation of the motor, ensuring the stability of the installation of the outgoing line sheath 5, thereby improving the reliability of the motor outgoing line structure. The wire harness inside the motor is passed through the support 53, then through the connecting boss 52 and the sheath body 51, and then the outgoing line sheath 5 with the wire harness is aligned with the mounting groove 211 of the first mounting end 201, and the connecting boss 52 is accurately inserted into the mounting groove 211. This arrangement ensures accurate installation and tight fit between the outgoing line sheath 5 and the plastic package 2, avoiding problems such as skewing and misalignment of the outgoing line sheath 5 during installation, improving the accuracy and quality of assembly.

[0042] In this embodiment, the outgoing sheath body 51 serves as the main part of the outgoing sheath 5, directly wrapping and protecting the wire harness inside the motor, preventing the wire harness from being mechanically damaged by external factors such as friction and collision during motor operation, and also serving as a certain insulation function to avoid short circuits between the wire harness and other components of the motor. The connecting boss 52 connects the outgoing sheath body 51 with the support 53, forming a complete protection channel to ensure that the wire harness can be smoothly led out from the inside of the motor to the outside, while the support 53 provides support for the entire outgoing sheath 5, keeping it in a stable position and shape and further enhancing the protection effect on the wire harness. The connecting boss 52 is fixed to the plastic sealing piece 2 by cooperating with the mounting groove 211, ensuring that the outgoing sheath 5 does not loosen or shift during motor operation, thereby ensuring the stability of the wire harness. The outgoing sheath body 51, the connecting boss 52 and the support 53 are connected in sequence, with a simple and compact structure, facilitating disassembly and assembly. When the motor needs to be maintained or the wire harness needs to be replaced, the outgoing sheath 5 can be quickly disassembled from the plastic sealing piece 2 for corresponding maintenance operations, improving the maintainability of the motor.

[0043] For reference Figures 1 to 5 As shown in the figure, one end of the outgoing sheath 5 faces the plastic sealing piece 2, and the other end of the outgoing sheath 5 has a wire outlet 501. The sealing ring 4 is provided with a first protrusion 401, and the first protrusion 401 is inlaid cooperation with the outgoing sheath 5, that is, the first protrusion 401 is inlaid cooperation with the connecting boss 52.

[0044] Specifically, the first protrusion 401 is inlaid cooperation with the connecting boss 52, and then the support 53 is embedded in the predetermined position inside the plastic sealing piece 2, ensuring that the support 53 is tightly matched with the plastic sealing piece 2 and firmly inlaid together, and the connecting boss 52 is accurately inserted into the mounting groove 211, ensuring the tight cooperation between the outgoing sheath 5 and the plastic sealing piece 2.

[0045] In this embodiment, the first protrusion 401 is inlaid with the connecting boss 52, forming a tighter fit between the sealing ring 4 and the connecting boss 52. This tight fit can further reduce the gap between the sealing ring 4 and the connecting boss 52, effectively preventing external moisture, dust and other foreign matter from entering the motor from between the connecting boss 52 and the sealing ring 4, enhancing the sealing performance. Combined with the sealing method of filling the assembly gap of the sealing ring 4, a multi-layer sealing protection is formed. Even if a small flaw or aging occurs in a certain level of sealing due to long-term use, the sealing of other levels can still play a certain blocking role, greatly improving the overall sealing reliability of the motor outlet part and ensuring the long-term stable operation of the motor in harsh environments. The inlaid fit of the first protrusion 401 and the connecting boss 52 provides a precise positioning and fixing method for the sealing ring 4. During assembly, the first protrusion 401 can accurately embed into the corresponding position of the connecting boss 52, ensuring the accurate position of the sealing ring 4 after assembly and preventing displacement or falling off, thereby ensuring the stability of the sealing effect. By combining the first protrusion 401 with the connecting boss 52, the function of the sealing ring 4 and the structure of the connecting boss 52 are integrated, making the components cooperate and support each other to form an organic whole. This not only improves the functional synergy of the components, but also enhances the systematicness and integrity of the entire outlet structure, making it better protect the internal components of the motor.

[0046] For reference Figures 1 to 7 As shown in the figure, the first protrusion 401 is arranged on the radially inner side of the sealing ring 4, that is, the setting direction of the first protrusion 401 is flush with the width direction of the sealing ring 4, and the first protrusion 401 is inlaid on the side wall of the connecting boss 52 from the radially inner side of the outlet sheath 5. A stepped gap 502 is formed between the first protrusion 401 and the outlet sheath 5, and the outer peripheral wall of the second mounting end 101 is embedded in the stepped gap 502.

[0047] Specifically, the first protrusion 401 on the sealing ring 4 is inlaid from the radially inner side of the outlet sheath 5 to the side wall of the connecting boss 52, and the setting direction of the first protrusion 401 is flush with the width direction of the sealing ring 4, ensuring that the first protrusion 401 is tightly combined with the side wall of the connecting boss 52, and that a stepped gap 502 is formed between the first protrusion 401 and the outlet sheath 5, which will accommodate the outer peripheral wall of the second mounting end 101. Align the second mounting end 101 of the end cover 1 with the first mounting end 201 of the plastic sealing member 2, and press the second mounting end 101 of the end cover 1 towards the first mounting end 201, so that the outer peripheral wall of the second mounting end 101 gradually embeds into the stepped gap 502 formed between the first protrusion 401 and the outlet sheath 5. At this time, the entire sheath body 51 has no gap between the sheath body 51, the end cover 1 and the plastic sealing member 2 from the outside.

[0048] In this embodiment, the first protrusion 401 is tightly integrated with the side wall of the connecting boss 52, forming a first sealing barrier to prevent moisture and dust from entering the motor through the gap between the connecting boss 52 and the sealing ring 4. Simultaneously, the outer peripheral wall of the second mounting end 101 is embedded in the step gap 502, further enhancing the sealing effect and forming a second sealing barrier to effectively prevent foreign objects from entering the motor through the assembly gap. The first protrusion 401, embedded in the side wall of the connecting boss 52, provides precise positioning for the sealing ring 4, ensuring that the sealing ring 4 will not shift or tilt during assembly, thus guaranteeing the uniformity and reliability of the sealing effect. The outer peripheral wall of the second mounting end 101, embedded in the step gap 502, restricts the radial and axial movement of the sealing ring 4 and the cable outlet sleeve 5, enhancing the stability of the entire cable outlet structure and ensuring that all components maintain the correct positional relationship during motor operation. Through multiple seals and tight fit, moisture, dust, insects, and other foreign objects are effectively prevented from entering the motor through the cable outlet, improving the motor's protection level and meeting the requirements for use in harsh environments.

[0049] As one specific implementation method, see [link to relevant documentation] Figure 6 As shown, the sealing ring 4 and the first protrusion 401 are made of flexible silicone material, and the sheath body 51 is also made of flexible silicone material. The soft silicone material effectively fills the gap between the end cap and the plastic seal 2, which is more conducive to the sealing of the assembly gap between the end cap 1 and the plastic seal 2 and the mounting groove 211. Since the first protrusion 401 and the sheath body 51 are all embedded with the connecting boss 52, in this embodiment, the preferred method is to first integrally form or embed the sealing ring 4 and the sheath body 51 together. Since the first protrusion 401 is located on the radial inner side of the sealing ring 4, the central axis of the first protrusion 401 is perpendicular to the central axis of the sheath body 51, which can ensure that the first protrusion 401 is connected to the side wall of the connecting boss 52, and the sheath body 51 is connected to the other side wall of the connecting boss 52. That is, the first protrusion 401 and the sheath body 51 are installed on the connecting boss 52 from two directions respectively. The connecting boss 52 and the support 53 serve two purposes: firstly, to connect the sheath body 51 and the sealing ring 4, and secondly, to be installed in the plastic seal 2. Therefore, the connecting boss 52 and the support 53 are made of a relatively hard nylon material.

[0050] In one specific implementation, a deformation groove is provided in the first protrusion 401, and a connecting post is provided on the side wall of the connecting boss 52, with the connecting post being interference-fitted into the deformation groove.

[0051] See also Figures 1 to 5 As shown, the support member 53 has a through hole 531, and the cable outlet sleeve 5 has a cable harness channel. One end of the cable harness channel passes through the support member 53 and communicates with the through hole 531. The other end of the cable harness channel passes through and connects to the boss 52 and the sleeve body 51 in sequence.

[0052] In this embodiment, starting from the wire passing hole 531 of the support 53, the wire harness channel passes through the connecting boss 52 and the sheath body 51, providing a continuous and smooth wire outlet path for the motor internal wire harness, ensuring that the wire harness can be smoothly led out from the motor interior to the outside. The wire harness channel enables the wire harness to avoid direct contact with other components in the motor interior during wire outlet, reducing the risk of mechanical damage such as friction and pulling, and also plays a certain insulation protection role to prevent wire harness short circuit. The wire passing hole 531 of the support 53 and the wire harness channel of the wire outlet sheath 5 work together to provide stable support for the wire harness, preventing the wire harness from shaking or shifting during motor operation, ensuring the stability of wire outlet. The communication structure between the support 53 and the wire outlet sheath 5 enhances the synergy between the two, making the entire wire outlet structure more compact and stable, and improving the overall structural strength of the motor wire outlet part. The communication of the wire harness channel enables the sealing ring 4 and other sealing components to more closely surround the wire harness, enhancing the sealing effect and preventing the intrusion of water, dust and other foreign matter from around the wire harness into the motor interior. This arrangement reduces the risk of failure caused by loose, worn or poorly sealed wire harness, improving the reliability and durability of the motor under various working conditions.

[0053] For reference Figures 1 to 5 As shown, the inner wall of the wire passing hole 531 is provided with a wire leakage groove 532, and the wire harness is bent out of the wire leakage groove 532.

[0054] In this embodiment, the wire passing hole 531 refers to the hole through which the wire harness extends outward to the entire machine under normal use conditions, and the wire leakage groove 532 refers to the condition when the wire harness is welded (wire harness welding state), the front end of the wire harness can be folded downward, increasing the non-restricted length of the wire harness, which is equivalent to increasing the length of the bare wire. The wire needs to be a little longer for welding, which is convenient for welding.

[0055] For reference Figures 1 to 5 As shown, the end face of the support 53 away from the connecting boss 52 is provided with two wire passing grooves 533, and the two wire passing grooves 533 are respectively located on both sides of the wire passing hole 531.

[0056] In this embodiment, two wire grooves 533 are located on both sides of the wire passing hole 531, and the wire harness can be reasonably distributed in the wire grooves 533 on both sides to avoid excessive concentration of the wire harness at the wire passing hole 531, so that the layout of the wire harness at the end face of the support piece 53 is more uniform and neat, and the mutual interference between the wire harnesses is reduced. When there are multiple wire harnesses inside the motor that need to be led out, this arrangement can meet the wire-out requirements of multiple wire harnesses, provide independent wire-out channels for each wire harness, ensure the separation and insulation between the wire harnesses, and avoid short circuit and other problems caused by the crossing or overlapping of the wire harnesses. The wire groove 533 provides a clear wire-out direction guide for the wire harness, so that the wire harness can be more smoothly led out from the wire passing hole 531 of the support piece 53 to the outside, facilitating subsequent assembly and connection operations, and improving assembly efficiency. The distribution of the wire harness in the wire grooves 533 on both sides can reduce the gap between the wire harness and the support piece 53, reduce the risk of foreign matter such as external moisture and dust invading the motor interior from around the wire harness, and enhance the sealing performance of the motor wire-out part.

[0057] For reference Figures 1 to 5 As shown, the two ends of the support piece 53 are bent in the circumferential direction of the plastic sealing piece 2 to make the side wall of the support piece 53 inlayed with the plastic sealing piece 2, and the support piece 53 is used to seal the gap between the plastic sealing piece 2 and the sheath body 51.

[0058] In this embodiment, the two ends of the support piece 53 are bent in the circumferential direction of the plastic sealing piece 2 to make the side wall of the support piece 53 inlayed with the plastic sealing piece 2, and the support piece 53 is used to seal the gap between the plastic sealing piece 2 and the sheath body 51.

[0059] As a specific embodiment, the end face of the connecting boss 52 away from the support 53 is provided with a connecting column, and the sheath body 51 is provided with a groove, the connecting column is embedded in the groove in interference, that is, the sheath body 51 is inlaid with the connecting boss 52, and the support 53 is integrally formed with the connecting boss 52, and the installation positions and shapes of the two are different.

[0060] As a specific embodiment, a plurality of clamping pieces are arranged in the circumferential direction of the end cover 1, and a plurality of clamping grooves are arranged in the circumferential direction of the plastic sealing piece 2, and after the end cover 1 is pressed on the plastic sealing piece 2, the clamping pieces are clamped in the clamping grooves, forming another locking structure.

[0061] A motor comprises a wire outlet structure, and the wire outlet structure is the above-mentioned wire outlet structure.

[0062] It is easy for those skilled in the art to understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0063] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A cable outlet structure, characterized in that, include: End cap (1), plastic seal (2), and cable outlet assembly (3); The molding compound (2) has a first mounting end (201), and the end cap (1) has a second mounting end (101). The first mounting end (201) is assembled with the second mounting end (101), and there is an assembly gap between the first mounting end (201) and the second mounting end (101). The cable outlet assembly (3) includes a sealing ring (4) and a cable outlet sleeve (5). The cable outlet sleeve (5) has a cable outlet (501). The sealing ring (4) is provided on the side of the cable outlet sleeve (5) away from the cable outlet (501). An installation groove (211) is provided on the outer edge of the first mounting end (201) or the outer edge of the second mounting end (101). The cable outlet sleeve (5) is installed in the installation groove (211), and the sealing ring (4) is filled in the assembly gap. The first mounting end (201) has an outer edge with the mounting groove (211), and the sealing ring (4) is sleeved on the outer peripheral wall of the first mounting end (201). The inner peripheral wall of the second mounting end (101) presses the sealing ring (4) so ​​that the sealing ring (4) fills the assembly gap. One end of the outgoing cable sleeve (5) faces the plastic seal (2), and the other end of the outgoing cable sleeve (5) has the outgoing cable port (501). The sealing ring (4) is provided with a first protrusion (401), and the first protrusion (401) is connected to the outgoing cable sleeve (5). The first protrusion (401) is disposed on the radial inner side of the sealing ring (4), and a stepped gap (502) is formed between the first protrusion (401) and the outgoing sheath (5), and the outer peripheral wall of the second mounting end (101) is embedded in the stepped gap (502).

2. The outgoing cable structure according to claim 1, characterized in that, The cable sheath (5) includes a sheath body (51), a connecting boss (52), and a support member (53) connected in sequence. The sheath body (51) has a cable outlet (501) at one end away from the connecting boss (52), and the sheath body (51) extends out of the plastic seal (2) at one end away from the connecting boss (52). The connecting boss (52) is installed in the mounting groove (211), the sealing ring (4) is connected to the connecting boss (52), and the support member (53) is located on the radial inner side of the sealing ring (4) and is embedded in the plastic seal (2).

3. The outgoing cable structure according to claim 2, characterized in that, The support member (53) has a through hole (531), and the cable outlet sleeve (5) has a cable harness channel. One end of the cable harness channel passes through the support member (53) and communicates with the through hole (531). The other end of the cable harness channel passes through the connecting boss (52) and the sleeve body (51) in sequence.

4. The outgoing cable structure according to claim 3, characterized in that, The inner wall of the through hole (531) is provided with a wire-draining groove (532), and the wire bundle is bent out in the wire-draining groove (532).

5. The outgoing cable structure according to claim 3, characterized in that, The support member (53) has two wire passage grooves (533) on the end face away from the connecting boss (52), and the two wire passage grooves (533) are respectively located on both sides of the wire passage hole (531).

6. The outgoing cable structure according to claim 2, characterized in that, The two ends of the support member (53) are bent in the circumferential direction of the encapsulation member (2) so that the side wall of the support member (53) is fitted with the encapsulation member (2) and the support member (53) is used to seal the gap between the encapsulation member (2) and the sheath body (51).

7. An electric motor, comprising a lead-out structure, characterized in that, The outgoing cable structure is the outgoing cable structure according to any one of claims 1 to 6.

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