A DC injection stator and motor outlet sheath

Abstract

The present invention discloses a DC injection stator and a motor outlet sheath, including an outlet sheath, the outlet sheath includes an upper outlet sheath and a lower outlet sheath, a connecting piece is integrally arranged between the upper outlet sheath and the lower outlet sheath, the upper outlet sheath and the lower outlet sheath are both provided with a plurality of sheath wire holes, and the plurality of sheath wire holes penetrate the front and rear side walls of the upper outlet sheath and the lower outlet sheath, an inner lock buckle is arranged at one end of the upper outlet sheath or the lower outlet sheath, the upper outlet sheath is fixed to one end of the connecting piece, and the upper outlet sheath is formed by bending and folding the connecting piece and cooperating with the lower outlet sheath. The DC injection stator and motor outlet sheath provided by the present invention have an outlet sheath integral structure, an exhaust structure is added inside, and an inner lock buckle structure is used to firmly combine the upper and lower parts, thereby reducing the defective scrapping of injection molding, improving the quality requirements of the product, and meeting the product needs of customers.

Description

Technical Field

[0001] The invention relates to the technical field of lead-out cable sheaths, in particular to a DC injection-molded stator and a motor lead-out cable sheath. Background Art

[0002] The DC injection molded stator is mainly composed of stator winding, lead wire sheath, and other material components. The DC injection molded stator structure is injected with wires, and the lead wire sheath is required to block to form a closed loop. The BMC material is filled into the mold cavity and heated and cured to form the stator.

[0003] The original outlet sheath structure has defects in the process of matching the mold. The gas generated by BMC during the curing process cannot be discharged from the outlet sheath position, causing the gas to overflow from the power cord core and causing the wire skin to soften and break. This outlet sheath is too narrow in width, and the BMC material impact during the injection molding process is easy to cause overflow at the outlet sheath, impacting the power cord and causing scrap. The outlet sheath on the power cord has two upper and lower outlet sheaths that are spliced ​​together to form a whole. Since the outlet sheath is clamped on the power cord and it is inconvenient to operate, it is easy to cause the power cord to be damaged during the injection molding process, resulting in increased scrap costs. In addition, the outlet sheath is not easy to operate separately in the upper and lower parts during the assembly process. The sheath causes motion waste during the upper and lower structure removal process. The injection molding process causes leakage, material leakage, and wire skin damage due to problems with the outlet sheath. Abnormal quality. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an integrated structure of a wire outlet sheath, which adds an exhaust structure inside and uses an internal locking structure to firmly combine the upper and lower parts, reduce the defective scrap of injection molding, improve the quality requirements of products, and meet the product needs of customers for DC injection molding stators and motor wire outlet sheaths.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A DC injection molded stator and motor lead-out sheath, comprising a lead-out sheath, the lead-out sheath comprising an upper lead-out sheath and a lower lead-out sheath, a connecting piece being integrally arranged between the upper lead-out sheath and the lower lead-out sheath, the upper lead-out sheath and the lower lead-out sheath both being provided with a plurality of sheath wire holes, the plurality of sheath wire holes penetrating through the front and rear side walls of the upper lead-out sheath and the lower lead-out sheath, an inner locking buckle being arranged at one end of the upper lead-out sheath or the lower lead-out sheath, the upper lead-out sheath being fixed to one end of the connecting piece, the upper lead-out sheath being formed in cooperation with the lower lead-out sheath by bending and folding the connecting piece.

[0007] As a further improvement of the present invention: the sheath wire hole includes a sheath wire outlet hole and a sheath wire inlet hole, the sheath wire outlet hole is arranged at one end port of the sheath wire hole, the sheath wire inlet hole is arranged at the other end port of the sheath wire hole, and a receiving groove is opened in the middle of the sheath wire hole, and the receiving groove is used to suppress the expansion of the power cord.

[0008] As a further improvement of the present invention: the sheath wire outlet hole and the sheath wire inlet hole are connected to the accommodating groove, the aperture of the accommodating groove is larger than the aperture of the sheath wire outlet hole and the sheath wire inlet hole, and the accommodating groove is also arranged on the upper wire outlet sheath and the lower wire outlet sheath.

[0009] As a further improvement of the present invention: an outlet arc chamfer is provided at the port of the sheath outlet hole, the outlet arc chamfer is connected to the sheath outlet hole, and the outlet arc chamfer is arranged in a circular shape at the outer periphery of the port of the sheath outlet hole.

[0010] As a further improvement of the present invention: the sheath wire outlet hole and the sheath wire inlet hole are circular.

[0011] As a further improvement of the present invention: the receiving groove is in the shape of a circular ring, a polygon or an ellipse.

[0012] As a further improvement of the present invention: the inner lock buckle is provided with a buckle hook, one end of the buckle hook is extended downward to be provided with a buckle handle, the buckle handle is connected to the upper wire outlet sheath or the lower wire outlet sheath, and the lower wire outlet sheath or the upper wire outlet sheath is provided with a buckle groove adapted to the inner lock buckle.

[0013] As a further improvement of the present invention: the buckle groove is arranged on the lower wire outlet sheath or the upper wire outlet sheath and passes through the upper and lower surfaces of the lower wire outlet sheath or the upper wire outlet sheath, and the buckle hook is provided with a hook-shaped structure to ensure that the lower wire outlet sheath and the upper wire outlet sheath can be buckled relative to the buckle lock or released to move relatively away from each other.

[0014] As a further improvement of the present invention: the outlet sheath is provided with a positioning guide column, the positioning guide column is arranged in the outlet sheath, and the outlet sheath is adaptively provided with a positioning guide hole, and the positioning guide column is plugged into the positioning guide hole.

[0015] As a further improvement of the present invention: a laterally recessed lifting groove is provided at the connection position between the buckle handle and the upper or lower wire outlet sheath, and the lifting groove is provided at the end corner where the upper or lower wire outlet sheath is connected to the buckle handle.

[0016] As a further improvement of the present invention: the upper outlet sheath and the lower outlet sheath are made of BMC material.

[0017] As a further improvement of the present invention: the diameter of the sheath wire outlet hole is larger than the diameter of the sheath wire inlet hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The outlet sheath of the present invention is composed of an upper and lower spliced ​​structure, which is designed to be connected with a one-piece structure, which can reduce the waste of taking out the outlet sheath separately and the inconvenience of installation, is convenient for employees to operate, and improves work efficiency. The production process of the injection molding one-piece structure is mature and can be mass-produced.

[0020] 2. The one-piece outlet sheath structure adopts a structure that adds positioning guide holes and positioning guide columns to the upper and lower structures, and performs upper and lower assembly to play a role in positioning and guiding. The upper and lower assembly of the outlet sheath adopts a locking structure with an internal lock to prevent it from falling off and not being tightened during use.

[0021] 3. The inner diameter of the wire hole structure of the outlet sheath is smaller than the wire inlet position, which effectively prevents the injection molded BMC material from overflowing through the outlet hole, improves the performance quality of the product, and meets the product quality requirements.

[0022] 4. The upper and lower surfaces of the outlet sheath adopt an internal opening structure at the outlet position, which effectively solves the internal exhaust problem and plays a buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0024] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0025] Numbers in the figure: 1. upper wire outlet sheath; 2. lower wire outlet sheath; 3. connecting piece; 4. sheath wire hole; 41. sheath wire inlet hole; 42. sheath wire outlet hole; 43. accommodating groove; 44. outlet arc chamfer; 5. inner locking buckle; 51. buckle hook; 52. buckle handle; 53. buckle groove; 6. positioning guide column; 7. positioning guide hole; 8. lifting groove. DETAILED DESCRIPTION

[0026] The present invention is further described with reference to the accompanying drawings and embodiments:

[0027] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as “upper”, “lower”, “top”, “bottom”, “left” and “right” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. Therefore, they cannot be understood as limiting the actual use direction of the present invention.

[0028] Implementation case 1:

[0029] A DC injection molded stator and motor lead-out sheath, comprising a lead-out sheath, wherein the lead-out sheath comprises an upper lead-out sheath 1 and a lower lead-out sheath 2, wherein a connecting piece 3 is integrally arranged between the upper lead-out sheath 1 and the lower lead-out sheath 2, the lead-out sheath is designed to be a conjoined structure, and a structure for taking and assembling the upper and lower lead-out sheaths 2 is cancelled, the upper lead-out sheath 1 and the lower lead-out sheath 2 are both provided with a plurality of sheath wire holes 4, and the thickness of the upper lead-out sheath 1 and the lower lead-out sheath 2 is widened, the lead-out sheath is widened on the basis of the original size to increase the effective contact area of ​​the power cord and the mold, and improve the product quality reliability, a plurality of sheath wire holes 4 penetrate the front and rear side walls of the upper lead-out sheath 1 and the lower lead-out sheath 2, one end of the lower lead-out sheath 2 is provided with an inner lock buckle 5, the upper lead-out sheath 1 is fixed to one end of the connecting piece 3, and the upper lead-out sheath 1 is formed in coordination with the lower lead-out sheath 2 by bending and folding the connecting piece 3.

[0030] The sheath wire hole 4 includes a sheath wire outlet hole 42 and a sheath wire inlet hole 41, the sheath wire outlet hole 42 is arranged at one end port of the sheath wire hole 4, the sheath wire inlet hole 41 is arranged at the other end port of the sheath wire hole 4, and a receiving groove 43 is opened in the middle of the sheath wire hole 4, the receiving groove 43 is used to suppress the expansion of the power line, the sheath wire outlet hole 42 and the sheath wire inlet hole 41 are connected to the receiving groove 43, the aperture of the receiving groove 43 is larger than the aperture of the sheath wire outlet hole 42 and the sheath wire inlet hole 41, the receiving groove 43 is also arranged on the upper wire outlet sheath 1 and the lower wire outlet sheath 2, an outlet arc chamfer 44 is opened at the port of the sheath wire outlet hole 42, the outlet arc chamfer 44 is connected to the sheath wire outlet hole 42, and the outlet arc chamfer 44 is arranged in a circular ring shape at the outer periphery of the port of the sheath wire outlet hole 42. The upper and lower surfaces of the outlet sheath adopt an internal opening structure at the outlet position, which effectively solves the internal exhaust problem and plays a buffering role. The outlet hole 42 of the outlet sheath at the outlet position adopts an arc chamfer to avoid the quality risk of crushing the power line.

[0031] The sheath wire outlet hole 42 and the sheath wire inlet hole 41 are circular.

[0032] The receiving groove 43 is in the shape of a ring, a polygon or an ellipse.

[0033] The inner lock buckle 5 is provided with a hook 51, one end of the hook 51 is extended downward and provided with a handle 52, the handle 52 is connected to the lower outlet sheath 2, and the upper outlet sheath 1 is provided with a groove 53 adapted to the inner lock buckle 5, the groove 53 is provided on the upper outlet sheath 1 and passes through the upper and lower surfaces of the upper outlet sheath 1, and the hook 51 is provided with a hook-shaped structure to ensure that the lower outlet sheath 2 and the upper outlet sheath 1 can be relatively locked or unlocked and move away from each other. The upper and lower assemblies of the outlet sheath adopt the inner lock buckle 5 as a locking structure to prevent it from falling off and not being tightened during use. When in use, the inner lock buckle 5 is inserted into the groove 53, and the hook 51 of the inner lock buckle 5 is passed out of the groove 53 and hooked on the lower surface of the upper outlet sheath 1 to achieve snap locking.

[0034] The lower outlet sheath 2 is provided with a positioning guide column 6, and the positioning guide column 6 is arranged on the upper surface of the lower outlet sheath 2, and the upper outlet sheath 1 is adaptively provided with a positioning guide hole 7, and the positioning guide column 6 is plugged into the positioning guide hole 7. The one-piece outlet sheath structure adopts an upper and lower structure to increase the positioning hole structure, and performs upper and lower assembly to play a role in positioning and guiding.

[0035] A laterally recessed opening slot 8 is provided at the connection position between the buckle handle 52 and the lower outlet sheath 2, and the opening slot 8 is provided at the end corner where the lower outlet sheath 2 is connected to the buckle handle 52. The opening slot 8 can facilitate the relative movement of the upper outlet sheath 1 and the lower outlet sheath 2 when the inner lock buckle 5 is unlocked.

[0036] The upper outlet sheath 1 and the lower outlet sheath 2 are made of PA66 material, which is a tough engineering thermoplastic material with very good chemical stability, mechanical strength, flame retardant properties, good toughness, and good insulation performance.

[0037] The diameter of the sheath outlet hole 42 is larger than the diameter of the sheath inlet hole 41. The inner diameter of the sheath wire hole 4 of the outlet sheath is smaller than the wire outlet position at the inlet position, which effectively prevents the injection BMC material from overflowing through the outlet hole, improves the performance quality of the product, and meets the product quality requirements.

[0038] The outlet sheath adopts an integral injection molding structure of PA66 material; the outlet end of the sheath outlet hole 42 of the outlet sheath adopts the same wire gauge and wire diameter design as the power cord, and the power cord will not be squeezed to cause damage to the wire skin during injection molding assembly. The outlet position of the sheath outlet hole 42 of the outlet sheath adopts an arc chamfer structure to avoid crushing the power cord and quality hazards, and effectively fit the power cord; the internal accommodating groove 43 is a concave square slot structure, and the upper and lower surfaces of the outlet sheath adopt an internal opening structure in the sheath wire hole 4, which effectively solves the internal exhaust problem of the mold and plays a buffering role, solves the overflow of BMC material from the outlet hole diameter, plays a buffering and blocking role, and stores the incoming material to avoid rushing out and causing damage to the power cord; the connecting piece 3 connects the upper outlet sheath 1 and the lower outlet sheath 2, which is convenient for taking and assembling during the assembly process; it can be quickly assembled during the assembly process The upper outlet sheath 1 and the lower outlet sheath 2 are quickly assembled, and the positioning guide column 6 and the positioning guide hole 7 adopt a triangular positioning hole column structure design, which can effectively perform the guiding and positioning, and avoid the quality abnormality of the upper and lower sheath wire holes 4 being misaligned and deviated; the upper outlet sheath 1 and the lower outlet sheath 2 can be tightly matched and not loosened, and are designed as an internal lock buckle 5 structure. The lock buckle is a barb structure for preventing the opening structure, and the assembly is tight and not easy to loosen; the aperture of the inlet hole 41 of the inlet sheath and the outlet hole 42 of the outlet sheath adopts a structure design in which the size of the inlet position is smaller than the aperture of the outlet position, and the locking is effectively performed to prevent the BMC material from overflowing through the outlet hole. In order to increase the effective contact area between the outlet sheath and the power supply, the side widening structure is designed to avoid the quality abnormality of missing wires, running materials, and wire skin damage, thereby improving the performance quality of the product and meeting the product quality requirements.

[0039] Implementation case 2:

[0040] A DC injection molded stator and motor lead-out sheath, comprising a lead-out sheath, wherein the lead-out sheath comprises an upper lead-out sheath 1 and a lower lead-out sheath 2, wherein a connecting piece 3 is integrally arranged between the upper lead-out sheath 1 and the lower lead-out sheath 2, wherein both the upper lead-out sheath 1 and the lower lead-out sheath 2 are provided with a plurality of sheath wire holes 4, wherein the plurality of sheath wire holes 4 penetrate through the front and rear side walls of the upper lead-out sheath 1 and the lower lead-out sheath 2, wherein an inner locking buckle 5 is arranged at one end of the upper lead-out sheath 1, wherein the upper lead-out sheath 1 is fixed to one end of the connecting piece 3, and wherein the upper lead-out sheath 1 is formed in cooperation with the lower lead-out sheath 2 by bending and folding the connecting piece 3.

[0041] The sheath wire hole 4 includes a sheath wire outlet hole 42 and a sheath wire inlet hole 41, the sheath wire outlet hole 42 is arranged at one end port of the sheath wire hole 4, the sheath wire inlet hole 41 is arranged at the other end port of the sheath wire hole 4, and a receiving groove 43 is opened in the middle of the sheath wire hole 4, the receiving groove 43 is used to suppress the expansion of the power line, the sheath wire outlet hole 42 and the sheath wire inlet hole 41 are connected to the receiving groove 43, the aperture of the receiving groove 43 is larger than the aperture of the sheath wire outlet hole 42 and the sheath wire inlet hole 41, the receiving groove 43 is also arranged on the upper wire outlet sheath 1 and the lower wire outlet sheath 2, an outlet arc chamfer 44 is opened at the port of the sheath wire outlet hole 42, the outlet arc chamfer 44 is connected to the sheath wire outlet hole 42, and the outlet arc chamfer 44 is arranged in a circular ring shape at the outer periphery of the port of the sheath wire outlet hole 42.

[0042] The sheath wire outlet hole 42 and the sheath wire inlet hole 41 are circular.

[0043] The receiving groove 43 is in the shape of a ring, a polygon or an ellipse.

[0044] The inner lock buckle 5 is provided with a buckle hook 51, one end of the buckle hook 51 is extended downward to be provided with a buckle handle 52, the buckle handle 52 is connected to the upper wire outlet sheath 1, and the lower wire outlet sheath 2 is provided with a buckle groove 53 adapted to the inner lock buckle 5, the buckle groove 53 is arranged on the lower wire outlet sheath 2 and passes through the upper and lower surfaces of the lower wire outlet sheath 2, and the buckle hook 51 is provided with a hook-shaped structure to ensure that the lower wire outlet sheath 2 and the upper wire outlet sheath 1 can be buckled or unlocked relative to each other and move away from each other.

[0045] The upper outlet sheath 1 is provided with a positioning guide column 6 , which is arranged on the upper surface of the upper outlet sheath 1 , and the lower outlet sheath 2 is adaptively provided with a positioning guide hole 7 , in which the positioning guide column 6 is inserted.

[0046] A laterally recessed opening groove 8 is provided at the connection position between the buckle handle 52 and the upper outlet sheath 1 , and the opening groove 8 is provided at the end corner where the upper outlet sheath 1 is connected to the buckle handle 52 .

[0047] The upper outlet sheath 1 and the lower outlet sheath 2 are made of BMC material.

[0048] The diameter of the sheath wire outlet hole 42 is larger than the diameter of the sheath wire inlet hole 41 .

[0049] Implementation case three:

[0050] As an alternative embodiment to the above embodiment, the position of the connecting piece 3 can be adjusted to be connected to the sides of the upper wire outlet sheath 1 and the lower wire outlet sheath 2, so that the upper wire outlet sheath 1 and the lower wire outlet sheath 2 have side covering and fitting molding, the connecting piece 3 can be made of soft plastic material or a hard plastic structure, the hard plastic structure can be replaced by a hinge style, or a through hole can be opened on the upper wire outlet sheath 1 or the lower wire outlet sheath 2, and the other upper wire outlet sheath 1 or the lower wire outlet sheath 2 is provided with a side extension block connecting the through hole or fixed by bolts, so that the upper wire outlet sheath 1 or the lower wire outlet sheath 2 can be driven around the bolt to flip the upper wire outlet sheath 1 or the lower wire outlet sheath 2 for relative covering movement.

[0051] Implementation Case 4:

[0052] As an alternative embodiment of the above embodiment, the positioning guide column 6 is replaced with an inner lock buckle 5. Multiple inner lock buckles 5 can tightly lock the upper outlet sheath 1 and the lower outlet sheath 2 when in use. The above inner lock buckle 5 can be designed on the outer sides of the upper outlet sheath 1 or the lower outlet sheath 2 on both sides relative to each other, and a buckle position is set on the matching surface of the other upper outlet sheath 1 or the lower outlet sheath 2. The structure is simple and the operation is simple and convenient. Alternatively, the inner lock buckle 5 can be replaced with a plug buckle, or a buckle can be set on the side of the upper outlet sheath 1 or the lower outlet sheath 2. The inner lock buckle 5 can also be replaced with a screw or a bolt, and screw holes can be set on the upper outlet sheath 1 and the lower outlet sheath 2 to allow the screw or bolt to pass through, or as long as the upper outlet sheath 1 can be locked on the lower outlet sheath 2.

[0053] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A DC injection stator and motor lead-out sheath, It is characterized in that It includes an outlet sheath, the outlet sheath includes an upper outlet sheath and a lower outlet sheath, a connecting piece is integrally arranged between the upper outlet sheath and the lower outlet sheath, the upper outlet sheath and the lower outlet sheath are both provided with a plurality of sheath wire holes, and the plurality of sheath wire holes penetrate the front and rear side walls of the upper outlet sheath or the lower outlet sheath, an inner lock buckle is arranged at one end of the upper outlet sheath or the lower outlet sheath, the upper outlet sheath is fixed to one end of the connecting piece, and the upper outlet sheath is formed by bending and folding the connecting piece to cooperate with the lower outlet sheath; A receiving groove is provided in the middle of the sheath wire hole, and the receiving groove is used to suppress the expansion of the power wire; The aperture of the accommodating groove is larger than the apertures of the sheath wire outlet hole and the sheath wire inlet hole.

2. A DC injection stator and motor lead-out sheath according to claim 1, It is characterized in that The sheath wire hole comprises a sheath wire outlet hole and a sheath wire inlet hole. The sheath wire outlet hole is arranged at one end port of the sheath wire hole, and the sheath wire inlet hole is arranged at the other end port of the sheath wire hole.

3. A DC injection molded stator and motor lead-out sheath according to claim 2, It is characterized in that The sheath wire outlet hole and the sheath wire inlet hole are connected to the accommodating groove, and the accommodating groove is also arranged on the upper wire outlet sheath and the lower wire outlet sheath.

4. A DC injection molded stator and motor lead-out sheath according to claim 3, It is characterized in that An outlet arc chamfer is provided at the port of the sheath outlet hole, the outlet arc chamfer is connected to the sheath outlet hole, and the outlet arc chamfer is arranged in a circular shape at the outer periphery of the port of the sheath outlet hole.

5. A DC injection molded stator and motor lead-out sheath according to claim 2, It is characterized in that The sheath wire outlet hole and the sheath wire inlet hole are circular.

6. A DC injection molded stator and motor lead-out sheath according to claim 5, It is characterized in that The receiving groove is in the shape of a ring, a polygon or an ellipse.

7. A DC injection molded stator and motor lead-out sheath according to claim 1, It is characterized in that The inner lock buckle is provided with a buckle hook, one end of the buckle hook is extended downward to be provided with a buckle handle, the buckle handle is connected to the upper outlet sheath or the lower outlet sheath, and the lower outlet sheath or the upper outlet sheath is provided with a buckle groove adapted to the inner lock buckle.

8. A DC injection molded stator and motor lead-out sheath according to claim 7, It is characterized in that The buckle groove is arranged on the lower wire outlet sheath or the upper wire outlet sheath and penetrates the upper and lower surfaces of the lower wire outlet sheath or the upper wire outlet sheath, and the buckle hook is provided with a hook-shaped structure.

9. A DC injection molded stator and motor lead-out sheath according to claim 1, It is characterized in that The outlet sheath is provided with a positioning guide column, the positioning guide column is arranged in the outlet sheath, and the outlet sheath is adaptively provided with a positioning guide hole, and the positioning guide column is plugged into the positioning guide hole.

10. A DC injection molded stator and motor lead-out sheath according to claim 7, It is characterized in that A laterally recessed lifting groove is provided at the connection position between the buckle handle and the upper or lower wire outlet sheath, and the lifting groove is provided at the end corner where the upper or lower wire outlet sheath is connected to the buckle handle.

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