CN114362408B - Three-phase line sealing sheath and wire harness sealing method for electric control two-in-one motor - Google Patents
Three-phase line sealing sheath and wire harness sealing method for electric control two-in-one motor Download PDFInfo
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- CN114362408B CN114362408B CN202111468128.7A CN202111468128A CN114362408B CN 114362408 B CN114362408 B CN 114362408B CN 202111468128 A CN202111468128 A CN 202111468128A CN 114362408 B CN114362408 B CN 114362408B
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- sealing
- sheath body
- sheath
- inclined part
- sealing lip
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- 238000007789 sealing Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 description 17
- 239000003292 glue Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011112 process operation Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
Abstract
The invention relates to a three-phase line sealing sheath and a wire harness sealing method for electric control two-in-one of a motor, which comprises a sheath body with a wire passing channel in the middle; a sealing lip grows on the inner wall of the sheath body along the outlet direction, a wire passing cavity is formed by the inner surface of the sealing lip, and a curing cavity for containing curing agent is formed between the outer surface of the sealing lip and the inner surface of the sheath body. The wire harness sealing method comprises the steps that a lead is sleeved into a sheath body, the sheath body is clamped and fixed on a cover plate, and a curing agent is encapsulated in a curing cavity of the sheath body; and pressing the sealing lip after the curing agent is encapsulated, and sealing the wire harness after curing. The sealing sheath has the advantages of simple structure, small volume, strong universality and suitability for electric control two-in-one products of motors with limited design space. The wire harness sealing method has the advantages of simple process steps and convenient operation.
Description
[ field of technology ]
The invention relates to the technical field of motor wire harness sealing, in particular to a three-phase wire sealing sheath and a wire harness sealing method for electric control two-in-one motor.
[ background Art ]
The motor product with two electric control units is one integrated structure with motor and electric controller, and has volume greatly reduced compared with that of traditional motor and electric controller, and delicate structure.
At present, a common protection structure for the electric control two-in-one three-phase wire outlet of the motor is a rubber plug, and the rubber plug generally has only a wire harness friction prevention function, and the sealing structure is large in size and complex.
In the technical scheme of an outlet structure (patent application number 20191029415.0) of an electric vehicle hub motor, a sealing plug and a sealing convex column are adopted, and an outgoing line passes through a wire passing channel in the sealing plug to realize wire fixing and sealing.
The traditional three-phase outgoing line is sealed by a metal screw sleeve frequently, and the structural mode is suitable for a product with a large installation space, such as a single motor, has large volume, complex structure and high cost, and cannot be directly applied to the two-in-one condition of motor electric control.
Therefore, in order to solve the above technical problems, it is necessary to provide a three-phase wire sealing sheath and a wire harness sealing method for electric control of a motor, so as to overcome the defects in the prior art.
[ invention ]
The invention aims to provide a three-phase line sealing sheath for electric control two-in-one motor, which has the advantages of simple structure, small volume, strong universality and suitability for electric control two-in-one motor products with limited design space.
Meanwhile, the invention also aims to provide a three-phase wire harness sealing method for the electric control two-in-one motor, which has simple process steps and convenient operation and is suitable for popularization and application on the electric control two-in-one motor product.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a three-phase line sealing sheath of electric control two-in-one motor comprises a sheath body with a wire passing channel in the middle; a sealing lip grows on the inner wall of the sheath body along the outlet direction, a wire passing cavity is formed by the inner surface of the sealing lip, and a curing cavity for containing curing agent is formed between the outer surface of the sealing lip and the inner surface of the sheath body.
The seal lip has an inclined portion with a diameter gradually reduced in the direction of the outgoing line.
The sealing lip extends out of the outer end of the inclined part to form a straight part with unchanged diameter.
The inclined part comprises an inclined part I and an inclined part II along the outgoing line direction, and the included angle between the inclined part I and the outgoing line direction is larger than the included angle between the inclined part II and the outgoing line direction.
The diameter of the three-phase line is larger than the minimum inner diameter of the sealing lip.
The curing cavity is provided with a step surface, so that the diameter of the curing cavity outside the step surface is larger than that of the curing cavity inside the step surface.
The sheath body, offer the seal groove of round and apron installation at the surface.
The cover plate is in interference fit with the sealing groove.
The part of the sealing lip generated on the inner wall of the sheath body is positioned in the area corresponding to the sealing groove.
The inner end of the sheath body forms a base with taper.
A three-phase wire harness sealing method for electric control two-in-one motor comprises the following steps:
firstly, sleeving each lead wire of the three-phase line into a sheath body along the wire outlet direction, and then clamping the sheath body on a reserved hole of a cover plate by virtue of a sealing groove;
or firstly, the sheath body is clamped and fixed on a reserved hole of the cover plate by virtue of a sealing groove, and then each lead wire of the three-phase line is sleeved on the sheath body along the wire outlet direction;
encapsulating a curing agent in a curing cavity of the sheath body;
pressing the sealing lip after filling and sealing with the curing agent, so that the sealing lip tightly wraps the surface of the lead; after curing, the wire harness is sealed.
The curing agent is glue.
In the second step and the third step, the wire outlet direction is kept vertically upwards, and the curing agent applies pressure to the horizontal radial direction and the vertical axial direction of the sealing lip by means of the inclined part of the sealing lip.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the integral sealing lip is designed in the sheath body, the three-phase line is wrapped and sealed after the sealing lip passes the line, and then the sealing lip is forced to deform along the surface of the three-phase line by matching with the support of the curing agent in the curing cavity, so that the tight fitting and sealing are realized, and the strength support is provided, so that the sealing of the wire harness is ensured not to fail under the shaking condition. The structure design is ingenious, does not occupy the external volume of the sheath body, and is very suitable for the motor electric control two-in-one product with limited design space.
In addition, the optimized design of the shapes of the wire passing cavity, the curing cavity and the like in the sealing lip ensures that the comfort degree of wire passing of the wire harness and the compactness of wire wrapping of the sealing lip are improved.
Meanwhile, the invention simplifies the traditional wire harness sealing process, has simple and convenient operation, good sealing effect, effectively reduces the production cost on the basis of improving the sealing performance, and is suitable for large-scale production and processing on electric control two-in-one products of motors.
[ description of the drawings ]
FIG. 1 is a schematic view of a jacket body according to a preferred embodiment of the present invention;
fig. 2 is a schematic diagram of potting cure in the process operation of the preferred embodiment of the invention.
[ detailed description ] of the invention
The technical scheme of the invention is further elaborated with reference to the accompanying drawings 1-2.
In the preferred embodiment of the invention, as shown in fig. 1, the components involved include a boot body 1, a sealing lip 2. The sheath body 1 is generally made of insulating materials such as rubber and silica gel, and is in a columnar structure in this embodiment, a wire passing channel 11 for accommodating a wire harness therethrough is formed in the middle, the wire harness channel 11 penetrates the whole sheath body 1, and an inner wall 12 is formed in the sheath body 1. On the inner wall 12, a sealing lip 2 grows toward the center of the jacket body 1. The sealing lip 2 has a certain axial length and gradually reduces in diameter along the outgoing line direction indicated by arrow a in fig. 1. The area surrounded by the inner surface 21 of the sealing lip is the wire passing cavity 3, and the area surrounded by the outer surface 22 of the sealing lip and the corresponding inner surface 13 of the sheath body is the curing cavity 4. The curing chamber 4 is for containing a curing agent 5. When the three-phase wire 10 enters the wire passing channel 11 and passes out of the wire passing cavity 3 along the wire outlet direction, the rear half part of the sealing lip 2 provides a certain elastic space for the threading process, and the front half part of the sealing lip 2 wraps the wire 10 by virtue of self elasticity to form primary sealing. Then, after threading, the curing cavity 4 is filled with a curing agent 5, and glue can be adopted as a common curing agent 5. During the curing process of the glue in the curing cavity 4, the sealing lip 2 is gradually pressed, so that the sealing lip 2 can be tightly covered on the surface of the lead 10. And after the solidification is finished, sealing is finished. Furthermore, the curing agent 5 provides strength support to the lead 10 after final cure in a gel form, and the seal will not fail in the event of external shaking.
In order to achieve a further improved sealing effect, the embodiment is optimized with regard to the details on the sealing lip 2.
The seal lip 2 has an inclined portion 23, an inclined portion 24, and a straight portion 25 in this order along the wire outlet direction. The included angle between the first inclined part 23 and the wire outlet direction is larger than the included angle between the second inclined part 24 and the wire outlet direction, and the second inclined part 24 is connected with the straight part 25, so that the curve of the whole sealing lip 2 is smooth, and the sealing lip 2 is attached to the lead 10 more naturally when the follow-up curing agent 5 is cured, deformed and extruded. Of course, the number of inclined parts can be appropriately increased or decreased to achieve the sealing effect, and can be automatically adjusted according to the actual size and length. In the present embodiment, the straight portion 25 is the portion where the diameter of the entire seal lip 2 is smallest, and thus the direct sufficient contact with the lead 10 is this portion. The inside diameter of the straight portion 25 is slightly smaller than the diameter of the lead 10, and the lead 10 can be better fixed and sealed by means of the elastic deformation interference fit of the sealing lip 2.
In addition, the filling amount of the curing agent 5 also affects sealing and supporting. Therefore, in this embodiment, the curing chamber 4 has a single step surface 41 in the region thereof, the curing chamber 41 is divided into two parts, the outside the step surface 41, the inside the step surface 41, and the outside diameter D1 is larger than the inside diameter D2, so that the space of the curing chamber 4 is enlarged, more curing agent 5 can be contained, the shape of the curing squeeze seal lip 2 is changed sufficiently, and the supporting strength is larger.
The sheath body 1 is to be assembled and matched with the motor cover plate 20, so that a circle of sealing groove 6 is formed on the outer surface of the sheath body 1, and the sealing groove 61 comprises an upper limit surface 61 close to the outer end in the wire outlet direction, a lower limit surface 62 close to the inner end in the wire outlet direction and a groove bottom surface 63. In actual installation use, the cover plate 20 and the seal groove 6 may be interference fit. The interference fit herein may be embodied as: the distance between the upper limit surface 61 and the lower limit surface 62 is slightly smaller than the thickness of the cover plate 20, or the aperture of the reserved hole of the cover plate 20 is slightly smaller than the outer diameter of the bottom surface 63 of the groove, or a combination of the two. This forms an assembled seal between the sheath body 1 and the cover plate 20.
Since the contact between the seal groove 6 and the cover plate 20 is greatly emphasized after the assembly, the growth part of the seal lip 2 in this embodiment is located in the corresponding inner wall 12 area of the seal groove 6. This provides a strong bottom support for the sealing lip 2 by virtue of the combination of the sealing groove 6 and the cover plate 20.
The whole sheath body 1 takes the sealing groove 6 as a boundary, the outer end along the wire outlet direction is exposed outside the cover plate 20, and the inner end along the wire outlet direction is fixed inside the cover plate 20. Therefore, in order to facilitate the smooth insertion of the sheath body 1 into the cover 20, a base 7 is formed at the inner end of the sheath body 1, and the side surface of the base 7 is tapered, that is, the smaller the outer diameter of the base 7 is toward the inside of the cover 20. In the installation process, the side surface of the base 7 extrudes the preformed hole of the cover plate 20, so that the installation is convenient and smooth from small to large, and after the whole base 7 is immersed into the cover plate 20, the lower limiting surface 62 can form a reverse hook to prevent the sheath body 1 from being easily separated from the cover plate 20.
The sheath body 1 in the invention is matched with specific leads 10 in three phase lines, namely, products with different styles are provided with a plurality of leads 10, and a plurality of sheath bodies 1 are arranged. Thus, the sheath body 1 forms independent universality, the shape of the sheath body is not required to be changed due to products with different lead numbers, and the application range is greatly improved. The sealing lip 2 of the sheath body 1 is positioned in the sheath body 1, so that the whole product structure is small and exquisite, and the motor is suitable for motor products with small design space of two electronic control units.
The invention discloses a three-phase wire harness sealing method for electric control two-in-one motor, which comprises the following steps:
step one: firstly, sleeving each lead 10 of the three-phase line into a sheath body 1 along the outlet direction, and enabling the lead 10 to penetrate out of a sealing lip 2; and then the base 7 of the sheath body 1 is aligned with the reserved hole on the cover plate 20 to be extruded and inserted, and is clamped and fixed on the reserved hole by virtue of the sealing groove 6. The two operation sequences in the step can be exchanged as long as the product assembly logic is met.
Step two: the curing agent 5 is encapsulated in the curing cavity of the sheath body 1, and the common process is an encapsulating glue.
Step three: the curing agent 5 is fully contacted with the sealing lip 2 after encapsulation, and is pressed, so that the sealing lip 2 deforms to tightly wrap the surface of the lead 10. After the curing agent 5 is cured, the wire harness sealing is completed.
In the process operation, in the second step and the third step, the wire outlet direction is kept vertically upward, that is, the part of the sheath body 1 exposed outside the cover plate 20 is upward, the part of the sheath body 1 inserted into the inner side of the cover plate 20 is downward, the curing cavity 4 is in a bowl-like state, the curing agent 5 fully contacts the sealing lip 2 by means of self fluidity and self gravity, radial pressure F is applied to the flat part 25 of the sealing lip 2, and meanwhile, the inclined part of the sealing lip 2 comprises the inclined part I23 and the inclined part II 24, and is decomposed into horizontal radial pressure F1 and vertical axial pressure F2, so that the deformation of the sealing lip 2 is fully and very tightly attached to the lead wire 20, and complete sealing is achieved.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, but any modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a three phase line sealed sheath of automatically controlled two unifications of motor which characterized in that: the sheath comprises a sheath body with a wire passing channel in the middle; a sealing lip grows on the inner wall of the sheath body along the wire outlet direction, the inner surface of the sealing lip surrounds a wire passing cavity, and a curing cavity for containing curing agent is formed between the outer surface of the sealing lip and the inner surface of the sheath body; the sealing lip is provided with an inclined part with gradually reduced diameter along the outlet line direction, and a straight part with unchanged diameter extends out of the outer end of the inclined part; the sealing lip is sequentially provided with a first inclined part, a second inclined part and a straight part along the wire outlet direction; the included angle between the first inclined part and the wire outlet direction is larger than the included angle between the second inclined part and the wire outlet direction, and the second inclined part is connected with the straight part; the curing agent is uniformly pressed by virtue of self-fluidity and self-gravity to decompose the inclined part I and the inclined part into horizontal radial pressure F1 and vertical axial pressure F2.
2. A three-phase sealed sheath for electric control of a motor as claimed in claim 1, wherein: the diameter of the three-phase line is larger than the minimum inner diameter of the sealing lip.
3. A three-phase sealed sheath for electric control of a motor as claimed in claim 1, wherein: the curing cavity is provided with a step surface, so that the diameter of the curing cavity outside the step surface is larger than that of the curing cavity inside the step surface.
4. A three-phase sealed sheath for electric control of a motor as claimed in claim 1, wherein: the sheath body, offer the seal groove of round and apron installation at the surface.
5. The three-phase line sealing sheath for electric control two-in-one motor of claim 4, wherein: the cover plate is in interference fit with the sealing groove.
6. The three-phase line sealing sheath for electric control two-in-one motor of claim 4, wherein: the part of the sealing lip generated on the inner wall of the sheath body is positioned in the area corresponding to the sealing groove.
7. A three-phase sealed sheath for electric control of a motor as claimed in claim 1, wherein: the inner end of the sheath body forms a base with taper.
8. A three-phase wire harness sealing method for electric control two-in-one motor comprises the following steps:
firstly, sleeving each lead wire of the three-phase line into a sheath body along the wire outlet direction, and then clamping the sheath body on a reserved hole of a cover plate by virtue of a sealing groove;
or firstly, the sheath body is clamped and fixed on a reserved hole of the cover plate by virtue of a sealing groove, and then each lead wire of the three-phase line is sleeved on the sheath body along the wire outlet direction;
encapsulating a curing agent in a curing cavity of the sheath body;
pressing the sealing lip after filling and sealing with the curing agent, so that the sealing lip tightly wraps the surface of the lead; after solidification, the wire harness is sealed;
in the second step and the third step, the wire outlet direction is kept vertically upwards, and the curing agent applies pressure to the horizontal radial direction and the vertical axial direction of the sealing lip by virtue of the inclined part of the sealing lip;
the sealing lip is sequentially provided with a first inclined part, a second inclined part and a straight part along the wire outlet direction; the included angle between the first inclined part and the wire outlet direction is larger than the included angle between the second inclined part and the wire outlet direction, and the second inclined part is connected with the straight part; the curing agent is uniformly pressed by virtue of self-fluidity and self-gravity to decompose the inclined part I and the inclined part into horizontal radial pressure F1 and vertical axial pressure F2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468128.7A CN114362408B (en) | 2021-12-03 | 2021-12-03 | Three-phase line sealing sheath and wire harness sealing method for electric control two-in-one motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468128.7A CN114362408B (en) | 2021-12-03 | 2021-12-03 | Three-phase line sealing sheath and wire harness sealing method for electric control two-in-one motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114362408A CN114362408A (en) | 2022-04-15 |
| CN114362408B true CN114362408B (en) | 2023-12-05 |
Family
ID=81097578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111468128.7A Active CN114362408B (en) | 2021-12-03 | 2021-12-03 | Three-phase line sealing sheath and wire harness sealing method for electric control two-in-one motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114362408B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB852132A (en) * | 1956-10-26 | 1960-10-26 | British Engines Ltd | Improvements in or relating to electric cable glands |
| CH480747A (en) * | 1967-09-19 | 1969-10-31 | Luetze Friedrich | Cable gland |
| US4141562A (en) * | 1974-02-14 | 1979-02-27 | Sperry Rand Corporation | Method of enhancing the performance of lip-type shaft seals |
| JPH0963386A (en) * | 1995-08-29 | 1997-03-07 | Sumitomo Wiring Syst Ltd | Grommet |
| EP0970853A1 (en) * | 1998-07-08 | 2000-01-12 | Automobiles Peugeot | Sealed passage for an electric wire harness through a vehicle cowl opening and wire harness mounting process |
| WO2010057606A2 (en) * | 2008-11-19 | 2010-05-27 | Sew-Eurodrive Gmbh & Co. Kg | Sealing element |
| CN217445112U (en) * | 2021-12-03 | 2022-09-16 | 卧龙电气驱动集团股份有限公司 | Three-phase line sealing sheath for electric control two-in-one of motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201616488D0 (en) * | 2016-09-28 | 2016-11-09 | Cps22 Limited | Apparatus |
-
2021
- 2021-12-03 CN CN202111468128.7A patent/CN114362408B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB852132A (en) * | 1956-10-26 | 1960-10-26 | British Engines Ltd | Improvements in or relating to electric cable glands |
| CH480747A (en) * | 1967-09-19 | 1969-10-31 | Luetze Friedrich | Cable gland |
| US4141562A (en) * | 1974-02-14 | 1979-02-27 | Sperry Rand Corporation | Method of enhancing the performance of lip-type shaft seals |
| JPH0963386A (en) * | 1995-08-29 | 1997-03-07 | Sumitomo Wiring Syst Ltd | Grommet |
| EP0970853A1 (en) * | 1998-07-08 | 2000-01-12 | Automobiles Peugeot | Sealed passage for an electric wire harness through a vehicle cowl opening and wire harness mounting process |
| WO2010057606A2 (en) * | 2008-11-19 | 2010-05-27 | Sew-Eurodrive Gmbh & Co. Kg | Sealing element |
| CN217445112U (en) * | 2021-12-03 | 2022-09-16 | 卧龙电气驱动集团股份有限公司 | Three-phase line sealing sheath for electric control two-in-one of motor |
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| Publication number | Publication date |
|---|---|
| CN114362408A (en) | 2022-04-15 |
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