Wire harness protection structure and motor applying same

Abstract

The application discloses a wire harness protection structure and a motor applying the same. The wire harness protection structure comprises a plastic sealing filling body and an elastic sealing filling structure. The plastic sealing filling body is plastic sealed outside the wire harness and located in a via hole. When the wire harness is deflected, the plastic sealing filling body can follow the deflection of the wire harness. The elastic sealing filling structure is arranged between the via hole and the plastic sealing filling body to seal the gap between the via hole and the plastic sealing filling body when the wire harness is still deflected. The wire harness protection structure of the application increases the plastic sealing filling body at the wire outlet position. The plastic sealing filling body can still maintain reliable protection of the wire outlet when the wire harness has a certain deflection angle. The elastic sealing filling structure with large deformation is filled between the outside of the plastic sealing filling body and the via hole. When the wire harness is deflected, the deformation or sliding of the plastic sealing filling body and the elastic sealing filling structure still maintains the sealing between the plastic sealing filling body and the via hole. The wire harness protection structure of the application has dynamic sealing capability and high sealing reliability.

Description

Technical Field

[0001] This invention relates to the field of wire harness sealing technology, and more particularly to a wire harness protection structure and a motor using the same. Background Technology

[0002] The protective performance of a motor directly affects its reliable service life. High reliability and protection are required when connecting the motor power harness to the motor, directly impacting the motor's safe operation. Furthermore, power cables for motors with high input current require shielding. The protection and shielding of the harness at the motor connection directly determine the motor's safety.

[0003] The existing wiring harness connection method uses a stripped shield layer for contact, and the wiring harness exit seal uses a gland head for waterproofing. This method is prone to problems when the wiring harness exits at an angle; the sealing rubber ring can be compressed, leading to leakage and water ingress, which can cause poor motor insulation. Furthermore, the wiring harness exit can only be straight and is unsuitable for bent or skewed wiring harnesses, thus providing inadequate protection. Summary of the Invention

[0004] The purpose of this invention is to provide a wire harness protection structure and a motor using the same, aiming to solve the technical problems of leakage caused by the sealing ring being easily compressed when the wire harness outlet is skewed, and poor motor insulation caused by water ingress.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a wire harness protection structure for sealing between a through-hole of a structural component and a wire harness extending from the through-hole. The wire harness protection structure includes a plastic-encapsulated filler and an elastic sealing filler structure. The plastic-encapsulated filler is encapsulated on the outside of the wire harness and located inside the through-hole. When the wire harness is deflected, the plastic-encapsulated filler can follow the deflection of the wire harness. The elastic sealing filler structure is disposed between the through-hole and the plastic-encapsulated filler to seal the gap between the through-hole and the plastic-encapsulated filler even when the wire harness is deflected.

[0006] In some embodiments, the inner wall of the via is an annular inner spherical surface, the outer wall of the encapsulated filler is an annular outer spherical surface, and the elastic sealing filler structure is an annular spherical elastic sleeve disposed inside the annular inner spherical surface and sleeved outside the annular outer spherical surface. When the wire harness is deflected, the annular spherical elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler and the inner wall of the via to seal the gap between the via and the encapsulated filler.

[0007] In some embodiments, the inner wall of the through hole is an annular inner spherical surface, the outer wall of the encapsulating filler is an annular outer spherical surface, an annular groove is formed on the annular inner spherical surface and / or the annular outer spherical surface, and the elastic sealing filler structure is an elastic sealing ring disposed in the annular groove.

[0008] In some embodiments, there are multiple annular grooves, which are spaced apart along the length of the wire harness on the inner spherical surface and / or the outer spherical surface of the annular groove, and each annular groove is provided with an elastic sealing ring.

[0009] In some embodiments, the via is a circular hole, the encapsulated filler is a cylinder, and the elastic sealing filler structure is a tubular elastic sleeve disposed inside the via and sleeved outside the encapsulated filler. When the wire harness is deflected, the tubular elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler and the inner wall of the via to seal the gap between the via and the encapsulated filler.

[0010] In some embodiments, the wire harness includes a wire core, an inner sheath, a shielding layer, and an outer sheath, which are sequentially wrapped from the inside out. The encapsulating filler is encapsulated in the gap between the wire core, the inner sheath, the shielding layer, and the outer sheath, and is also encapsulated outside the outer sheath.

[0011] In some embodiments, the shielding layer penetrates the encapsulated filler and extends to the side of the structure away from the wire harness lead-out direction, so as to be electrically connected to the side of the structure away from the wire harness lead-out direction.

[0012] In some embodiments, the wire harness protection structure further includes two conductive voltage rings and a locking member that stacks and locks the two conductive voltage rings onto the structure, with one end of the shielding layer away from the wire harness lead-out direction clamped between the two conductive voltage rings.

[0013] In some embodiments, the inner sheath and the outer sheath at the end away from the wire harness lead-out direction are both encapsulated in the encapsulation filler.

[0014] According to another aspect of this application, embodiments of the present invention also provide an electric motor, the electric motor including structural components and a wiring harness protection structure as described above.

[0015] Compared with the prior art, the wire harness protection structure of the present invention has at least the following beneficial effects:

[0016] This invention discloses a wire harness protection structure for sealing the gap between a through-hole in a structural component and the wire harness extending from the through-hole. The wire harness protection structure includes a plastic encapsulated filler and an elastic sealing filler structure. The plastic encapsulated filler is encapsulated on the outside of the wire harness and located inside the through-hole. When the wire harness is misaligned, the plastic encapsulated filler can follow the misalignment. The elastic sealing filler structure is disposed between the through-hole and the plastic encapsulated filler to seal the gap between the through-hole and the plastic encapsulated filler even when the wire harness is still misaligned. Specifically, when the wire harness exits through a motor structural component, a through-hole of corresponding shape is opened on the structural component. The plastic encapsulated filler is first filled using injection molding with a mold housing. After the mold housing is removed, the elastic sealing filler structure is then disposed between the through-hole and the plastic encapsulated filler, completing the installation of the entire wire harness protection structure.

[0017] The wire harness protection structure of the present invention can add a plastic encapsulated filler between the wire harness and the structural component. The plastic encapsulated filler can follow the wire harness and rotate at a certain angle at the wire exit. This can greatly increase the feasibility of wire harness wiring when the wire exit is inconvenient after the motor is installed or when there are structural limitations. At the same time, an elastic sealing filler structure is set between the through hole and the plastic encapsulated filler, which can maintain high reliability of waterproof protection even when subjected to external force during subsequent operation.

[0018] The wire harness protection structure of this invention adds a plastic sealant at the wire harness exit point. This sealant maintains reliable protection even when the wire harness is at a certain angle of misalignment. The wire harness is completely sealed by the sealant, and a highly deformable elastic sealing filler structure, made of rubber, is filled between the outer side of the sealant and the through-hole of the structural component. Even when the wire harness is misaligned, the deformation or sliding of the sealant and the elastic sealing filler structure maintains the seal between the sealant and the through-hole of the structural component. This wire harness protection structure of the present invention possesses dynamic sealing capability and high sealing reliability.

[0019] In another aspect, the motor provided by the present invention is manufactured based on the above-mentioned wire harness protection structure, and its beneficial effects are the same as those of the above-mentioned wire harness protection structure, which will not be repeated here.

[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A cross-sectional view of the wire harness protection structure provided in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Cross-sectional view of the wire harness protection structure when the wire harness is skewed;

[0024] Figure 3 A cross-sectional view of another wire harness protection structure provided in an embodiment of the present invention;

[0025] Figure 4 for Figure 3 Cross-sectional view of the wire harness protection structure when the wire harness is skewed;

[0026] Figure 5 A cross-sectional view of another wire harness protection structure provided in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Cross-sectional view of the wire harness protection structure when the wire harness is skewed;

[0028] Figure 7 for Figure 5 Cross-sectional view of the encapsulated filler in the wire harness protection structure;

[0029] Figure 8 A cross-sectional view of a structural component of a motor provided in an embodiment of the present invention;

[0030] Figure 9 A cross-sectional view of an existing wire harness protection structure;

[0031] Figure 10 for Figure 9 The cross-sectional view of the wire harness protection structure when the wire harness is skewed.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Structural components; 11. Through holes;

[0034] 2. Wire harness; 21. Wire core; 22. Inner wire sheath; 23. Shielding layer; 24. Outer wire sheath;

[0035] 3. Molding filler; 31. Annular groove;

[0036] 4. Elastic sealing and filling structure;

[0037] 5. Conductivity loop;

[0038] 6. Locking components;

[0039] 7. Sealing rubber ring. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0041] In the description of this invention, it should be clearly stated that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," "horizontal," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Example 1

[0044] like Figure 1-8 As shown, this embodiment of the invention provides a wire harness protection structure for sealing the space between the through hole 11 of the structural component 1 and the wire harness 2 extending from the through hole 11. The wire harness protection structure includes a plastic-encapsulated filler 3 and an elastic sealing filler structure 4. The plastic-encapsulated filler 3 is encapsulated on the outside of the wire harness 2 and located inside the through hole 11. When the wire harness 2 is deflected, the plastic-encapsulated filler 3 can follow the deflection of the wire harness 2. The elastic sealing filler structure 4 is disposed between the through hole 11 and the plastic-encapsulated filler 3 so as to seal the gap between the through hole 11 and the plastic-encapsulated filler 3 when the wire harness 2 is still deflected.

[0045] like Figure 9 and 10 As shown, this is an existing wiring harness connection method where the shielding layer 23 of wiring harness 2 is connected via a stripped contact method. A gland is used for sealing the wiring harness outlet to prevent water damage. However, this method is prone to causing leakage and water ingress when the wiring harness outlet is misaligned, leading to poor motor insulation. Furthermore, wiring harness 2 can only exit in a straight line and is unsuitable for bent or misaligned situations. This method is detrimental to the protection of wiring harness 2.

[0046] In this embodiment, the wire harness protection structure is used to seal the gap between the through hole 11 of the structural component 1 and the wire harness 2 leading out from the through hole 11. The wire harness protection structure includes a plastic sealant 3 and an elastic sealing sealant 4. The plastic sealant 3 is plastic-sealed on the outside of the wire harness 2 and located inside the through hole 11. When the wire harness 2 is skewed, the plastic sealant 3 can follow the skew of the wire harness 2. The elastic sealing sealant 4 is disposed between the through hole 11 and the plastic sealant 3 so as to seal the gap between the through hole 11 and the plastic sealant 3 when the wire harness 2 is still skewed. Specifically, in this embodiment, when the wire harness 2 passes through the structural component 1 of the motor, a through hole 11 of a corresponding shape is opened on the structural component 1. The plastic sealant 3 is first filled by injection molding using a mold housing. Then the mold housing is removed, and the elastic sealing sealant 4 is disposed between the through hole 11 and the plastic sealant 3 to complete the installation of the entire wire harness protection structure.

[0047] In this embodiment, the wire harness protection structure can add a plastic encapsulated filler 3 between the wire harness 2 and the structural component 1. The plastic encapsulated filler 3 can follow the wire harness 2 and rotate at a certain angle at the wire exit point. This can greatly increase the feasibility of wiring the wire harness 2 when the wire exit is inconvenient after the motor is installed or when there are structural limitations. At the same time, an elastic sealing filler structure 4 is set between the through hole 11 and the plastic encapsulated filler 3. This can prevent the wire harness from being pulled off course by external forces during subsequent operation and still maintain high reliability of waterproof protection.

[0048] This invention adds a plastic sealant 3 at the wire exit position of the wire harness 2. The plastic sealant 3 maintains reliable protection for the wire exit even when the wire harness 2 is at a certain angle of deviation. The wire harness 2 is completely sealed by the plastic sealant 3, and a highly deformable elastic sealing filler structure 4 is filled between the outer side of the plastic sealant 3 and the through hole 11 of the structural component 1. Within a preset angle range of wire harness 2 deviation, the elastic sealing filler structure 4 can always be in contact with both the outer side of the plastic sealant 3 and the inner wall of the through hole 11 of the structural component 1. The elastic sealing filler structure 4 can be made of rubber. Even when the wire harness 2 is deviated, the deformation or sliding of the plastic sealant 3 and the elastic sealing filler structure 4 maintains the seal between the plastic sealant 3 and the through hole 11 of the structural component 1. The wire harness protection structure of this invention has dynamic sealing capability and high sealing reliability.

[0049] In some embodiments, the inner wall of the through hole 11 is an annular inner spherical surface, the outer wall of the encapsulated filler 3 is an annular outer spherical surface, and the elastic sealing filler structure 4 is an annular spherical elastic sleeve disposed inside the annular inner spherical surface and sleeved outside the annular outer spherical surface. When the wire harness 2 is deflected, the annular spherical elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler 3 and the inner wall of the through hole 11 to seal the gap between the through hole 11 and the encapsulated filler 3.

[0050] In this embodiment, the inner wall of the through hole 11 is an annular inner spherical surface, the outer wall of the encapsulated filler 3 is an annular outer spherical surface, and the elastic sealing filler structure 4 is an annular spherical elastic sleeve disposed inside the annular inner spherical surface and sleeved outside the annular outer spherical surface. When the wire harness 2 is deflected, the annular spherical elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler 3 and the inner wall of the through hole 11 to seal the gap between the through hole 11 and the encapsulated filler 3. When the wire harness 2 is deflected, the encapsulated filler 3 will deflect along with the wire harness 2, and there will be an offset between the elastic sealing filler structure 4 and the through hole 11 of the structural component 1. When the elastic sealing filler structure 4 is offset, it can also ensure the sealing between the encapsulated filler 3 and the through hole 11 of the structural component 1 through deformation. This prevents leakage caused by the connection between the inner and outer sides of the through hole 11 of the structural component 1. The wire harness 2 can be deflected in the entire circumferential direction, and the deflection angle is determined by the thickness of the elastic sealing filler structure 4. The thicker the elastic sealing filler structure 4, the larger the deflection angle of the wire harness 2 that it can withstand; the thinner the elastic sealing filler structure 4, the smaller the deflection angle of the wire harness 2 that it can withstand. During use, the outer diameter of the annular outer spherical surface of the outer wall of the plastic sealant 3 can be adjusted as needed to adjust the interlayer gap thickness, thereby adjusting the thickness of the elastic sealing filler structure 4 to accommodate different wire harness deflection angles.

[0051] In this embodiment, when the wires of the harness 2 pass through the structural component 1 of the motor, a through hole 11 of the corresponding shape is opened on the structural component 1. The plastic sealant 3 is first filled by injection molding using a hemispherical mold housing. Then the hemispherical mold housing is removed, and the elastic sealing filling structure 4 is filled between the through hole 11 and the plastic sealant 3 by injection molding, thus completing the installation of the entire harness protection structure.

[0052] In some embodiments, the inner wall of the through hole 11 is an annular inner spherical surface, the outer wall of the encapsulating filler 3 is an annular outer spherical surface, and an annular groove 31 is formed on the annular inner spherical surface and / or the annular outer spherical surface. The elastic sealing filling structure 4 is an elastic sealing ring disposed in the annular groove 31.

[0053] In this embodiment, the inner wall of the through hole 11 is an annular inner spherical surface, and the outer wall of the encapsulated filler 3 is an annular outer spherical surface. An annular groove 31 is formed on the annular inner spherical surface and / or the annular outer spherical surface. The elastic sealing filler structure 4 is an elastic sealing ring disposed in the annular groove 31. When the wire harness 2 is deflected, the encapsulated filler 3 will deflect along with the wire harness 2. There will be an offset between the elastic sealing filler structure 4 in the annular groove 31 on the annular inner spherical surface and / or the annular outer spherical surface and the through hole 11 of the structural component 1. The elastic sealing filler structure 4 slides on the annular inner spherical surface of the through hole 11 of the structural component 1 to ensure the sealing between the encapsulated filler 3 and the through hole 11 of the structural component 1. This prevents leakage caused by the connection between the inner and outer sides of the through hole 11 of the structural component 1. The wire harness 2 can be deflected in the entire circumferential direction. The limit angle of the deflection can be set as needed to ensure that the elastic sealing filling structure 4 is still compressed between the through hole 11 of the structural component 1 and the plastic sealant 3 when the limit deflection angle is reached.

[0054] In this embodiment, when the wires of the harness 2 pass through the structural component 1 of the motor, a corresponding through hole 11 is made on the structural component 1. A hemispherical mold shell is used to first fill the encapsulated filler 3 by injection molding, and an annular groove 31 for placing the elastic sealing filler structure 4 is pre-reserved on the annular outer spherical surface of the encapsulated filler 3. The elastic sealing filler structure 4 is then placed in the annular groove 31. The wall surface of the annular inner spherical hole of the through hole 11 in the structural component 1 is smooth and coated with lubricating oil. The elastic sealing filler structure 4 can slide on the annular inner spherical hole surface of the through hole 11, continuously ensuring a reliable seal.

[0055] Alternatively, an annular groove 31 for placing the elastic sealing filler structure 4 can be provided on the annular inner spherical surface of the through hole 11, and the elastic sealing filler structure 4 can be placed in the annular groove 31. The wall surface of the annular outer spherical surface of the encapsulated filler 3 is smooth and coated with lubricating oil. The elastic sealing filler structure 4 can slide on the annular outer spherical surface of the encapsulated filler 3, continuously ensuring a reliable seal.

[0056] In some embodiments, there are multiple annular grooves 31, which are spaced apart along the length direction of the wire harness 2 on the inner spherical surface and / or the outer spherical surface of the annular shape, and each annular groove 31 is provided with an elastic sealing ring.

[0057] In this embodiment, by setting the elastic sealing filling structure 4 to ensure the sealing effect, the range of wire harness 2 deflection can be increased.

[0058] In some embodiments, the through hole 11 is a circular hole, the encapsulated filler 3 is a cylinder, and the elastic sealing filler structure 4 is a tubular elastic sleeve disposed inside the through hole 11 and sleeved outside the encapsulated filler 3. When the wire harness 2 is deflected, the tubular elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler 3 and the inner wall of the through hole 11 to seal the gap between the through hole 11 and the encapsulated filler 3.

[0059] In this embodiment, the through hole 11 is a circular hole, the encapsulated filler 3 is a cylinder, and the elastic sealing filler structure 4 is a tubular elastic sleeve disposed inside the through hole 11 and sleeved outside the encapsulated filler 3. When the wire harness 2 is deflected, the tubular elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler 3 and the inner wall of the through hole 11 to seal the gap between the through hole 11 and the encapsulated filler 3. When the wire harness 2 is deflected, the encapsulated filler 3 will deflect along with the wire harness 2, and there will be an offset between the elastic sealing filler structure 4 and the through hole 11 of the structural component 1. When the elastic sealing filler structure 4 is offset, it can also ensure the sealing between the encapsulated filler 3 and the through hole 11 of the structural component 1 through deformation. This prevents leakage caused by the connection between the inner and outer sides of the through hole 11 of the structural component 1. The wire harness 2 can be deflected in the entire circumferential direction, and the deflection angle is determined by the thickness of the elastic sealing filler structure 4. The thicker the elastic sealing filler structure 4, the larger the deflection angle of the wire harness 2 that it can withstand; the thinner the elastic sealing filler structure 4, the smaller the deflection angle of the wire harness 2 that it can withstand. During use, the outer diameter of the annular outer spherical surface of the outer wall of the plastic sealant 3 can be adjusted as needed to adjust the interlayer gap thickness, thereby adjusting the thickness of the elastic sealing filler structure 4 to accommodate different wire harness deflection angles.

[0060] In this embodiment, when the wires of the harness 2 pass through the structural component 1 of the motor, a through hole 11 of the corresponding shape is opened on the structural component 1. The plastic sealant 3 is first filled by injection molding using a tubular mold housing. Then the tubular mold housing is removed, and the elastic sealing filling structure 4 is filled between the through hole 11 and the plastic sealant 3 by injection molding, thus completing the installation of the entire harness protection structure.

[0061] In some embodiments, the wire harness 2 includes a wire core 21, an inner sheath 22, a shielding layer 23, and an outer sheath 24, which are sequentially wrapped from the inside out. The plastic sealant 3 is sealed in the gap between the wire core 21, the inner sheath 22, the shielding layer 23, and the outer sheath 24, and is also sealed to the outside of the outer sheath 24.

[0062] In this embodiment, the wire harness 2 includes a wire core 21, an inner sheath 22, a shielding layer 23, and an outer sheath 24, which are sequentially wrapped from the inside out. The plastic sealant 3 is sealed in the gap between the wire core 21, the inner sheath 22, the shielding layer 23, and the outer sheath 24, and is also sealed to the outside of the outer sheath 24. By filling the plastic sealant 3, the entire wire harness 2 is sealed to prevent water, air, etc. from leaking from the gap between the plastic sealant 3 and the wire harness 2.

[0063] In some embodiments, the shielding layer 23 penetrates the encapsulated filler 3 and extends to the side of the structural member 1 away from the lead-out direction of the wire harness 2, so as to be electrically connected to the side of the structural member 1 away from the lead-out direction of the wire harness 2.

[0064] In this embodiment, the shielding layer 23 penetrates the plastic encapsulation filler 3 and extends to the side of the structural component 1 away from the lead-out direction of the wire harness 2, so as to electrically connect with the side of the structural component 1 away from the lead-out direction of the wire harness 2, thereby ensuring the connection between the shielding layer 23 of the wire harness 2 and the structural component 1 of the motor, so as to achieve grounding of the shield.

[0065] In some embodiments, the wire harness protection structure further includes two voltage-conducting rings 5 ​​and a locking member 6 that stacks and locks the two voltage-conducting rings 5 ​​onto the structural member 1, with one end of the shielding layer 23 away from the wire harness 2 lead-out direction clamped between the two voltage-conducting rings 5.

[0066] In this embodiment, the locking member 6 locks the two conductive voltage rings 5 ​​onto the structural member 1 in a stacked manner. The end of the shielding layer 23 away from the lead-out direction of the wire harness 2 is clamped between the two conductive voltage rings 5 ​​to prevent the shielding layer 23 from falling off, ensuring a reliable connection between the shielding layer 23 of the wire harness 2 and the structural member 1 of the motor, thus achieving grounding of the shield. This can be achieved by stripping a certain length of the shielding layer 23 of the wire harness 2 and extending it a certain length to the inner wall of the structural member 1. At least four locking members 6 are arranged to press the two conductive voltage rings 5 ​​tightly against the shielding layer 23. The conductive voltage ring 5 is an annular piece made of conductive metal material, ensuring reliable contact between the shielding layer 23 and the structural member 1. A certain length of swing is reserved for the lead-out length of the shielding layer 23 to prevent it from breaking when the wire harness is skewed.

[0067] In some embodiments, the inner sheath 22 and the outer sheath 24 are both encapsulated in the encapsulation filler 3 at the ends away from the lead-out direction of the wire harness 2.

[0068] In this embodiment, the ends of the inner sheath 22 and the outer sheath 24 away from the lead-out direction of the wire harness 2 are both encapsulated in the encapsulation filler 3. That is, the ends of the inner sheath 22 and the outer sheath 24 away from the lead-out direction of the wire harness 2 are located in the encapsulation filler 3. When encapsulating in the encapsulation filler 3, it is convenient to fill and encapsulate the gaps between the wire core 21 and the inner sheath 22, between the inner sheaths 22 and the shielding layer 23, and between the shielding layer 23 and the outer sheath 24, so as to prevent water, air and other substances from leaking from the gaps between the layers.

[0069] Example 2

[0070] This invention also provides a motor, which includes a structural component 1 and the wiring harness protection structure of embodiment 1.

[0071] Core 2 is a wire harness with a protective sheath, which is connected to the wires inside the motor after passing through the wire harness protection structure of this invention.

[0072] In summary, those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0073] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A wire harness protection structure for sealing between a through-hole in a structural component and a wire harness extending from the through-hole, characterized in that, The wire harness protection structure includes a plastic-encapsulated filler and an elastic sealing filler structure. The plastic-encapsulated filler is encapsulated on the outside of the wire harness and located inside the via. When the wire harness is deflected, the plastic-encapsulated filler can follow the deflection of the wire harness. The elastic sealing filler structure is disposed between the via and the plastic-encapsulated filler so as to seal the gap between the via and the plastic-encapsulated filler even when the wire harness is deflected. The inner wall of the via is an annular inner spherical surface, and the outer wall of the encapsulated filler is an annular outer spherical surface. The elastic sealing filler structure is an annular spherical elastic sleeve disposed inside the annular inner spherical surface and sleeved outside the annular outer spherical surface. When the wire harness is deflected, the annular spherical elastic sleeve can be compressed or stretched by the outer wall of the encapsulated filler and the inner wall of the via to seal the gap between the via and the encapsulated filler. Within a preset angle range of wire harness deflection, the annular spherical elastic sleeve is always in contact with both the outer wall of the encapsulated filler and the inner wall of the via.

2. The wire harness protection structure according to claim 1, characterized in that, The wire harness includes a wire core, an inner sheath, a shielding layer, and an outer sheath, which are sequentially wrapped from the inside out. The plastic sealant is sealed in the gap between the wire core, the inner sheath, the shielding layer, and the outer sheath, and is also sealed to the outside of the outer sheath.

3. The wire harness protection structure according to claim 2, characterized in that, The shielding layer penetrates the encapsulated filler and extends to the side of the structure away from the wire harness lead-out direction, so as to be electrically connected to the side of the structure away from the wire harness lead-out direction.

4. The wire harness protection structure according to claim 3, characterized in that, The wire harness protection structure further includes two conductive voltage rings and a locking member that stacks and locks the two conductive voltage rings onto the structural member. The end of the shielding layer away from the wire harness lead-out direction is clamped between the two conductive voltage rings.

5. The wire harness protection structure according to claim 2, characterized in that, Both the inner and outer sheaths are encapsulated within the encapsulation filler at the ends away from the wire harness lead-out direction.

6. An electric motor, characterized in that, The motor includes structural components and the wire harness protection structure as described in any one of claims 1-5.

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