CN217087639U - EPS has brush waterproof motor seal structure - Google Patents
EPS has brush waterproof motor seal structure Download PDFInfo
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- CN217087639U CN217087639U CN202220727714.2U CN202220727714U CN217087639U CN 217087639 U CN217087639 U CN 217087639U CN 202220727714 U CN202220727714 U CN 202220727714U CN 217087639 U CN217087639 U CN 217087639U
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- end cover
- eps
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- shell
- waterproof motor
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- 238000007789 sealing Methods 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a sealing structure of an EPS brush waterproof motor, which comprises a stator assembly and an end cover brush carrier rotor assembly arranged on the stator assembly; the end cover brush carrier rotor assembly comprises an end cover, two wire outlet seats for connecting a power wire in a penetrating way are mounted at the side end of the end cover, a pressing plate is further arranged on the side end face of the end cover, and the two wire outlet seats penetrate through the pressing plate; the stator assembly comprises a shell, an annular spigot is formed at the lower end of the end cover, an O-shaped rubber sealing ring is sleeved on the outer side of the spigot, the lower end face of the end cover is tightly attached to the upper end face of the shell, and the spigot is inserted into the shell. The utility model discloses processing is simple, does benefit to batch production and practices thrift the cost, and sealing performance and security performance height.
Description
Technical Field
The utility model relates to a there is brush motor technical field, especially relates to a EPS has brush waterproof motor seal structure.
Background
The EPS brushed waterproof motor is used for an automobile power-assisted steering system, is arranged at the position of an automobile chassis, and has very high requirements on the waterproof sealing performance of the motor. The EPS brush waterproof motor produced at present in China generally adopts three sealing structures: the first type adopts the wire outlet seat with the O-shaped ring, and glue is manually coated on the outer side of the wire outlet seat to achieve a sealing effect, and due to the structure, the amount of the manually coated glue is not easy to control, the glue has permeability before curing and is easy to permeate into other parts in the motor, so that potential safety hazards are brought to the operation of the motor, the operation consumes more time, the production efficiency is low, and the mass production is not facilitated; the second method is that the side surface of the end cover is provided with the notch, the wire outlet seat is pressed by the elastic clamping plate to achieve a sealing effect, the structure has very high requirements on the processing precision of the notch of the end cover and the rigidity of the elastic clamping plate, the design cost of the motor is high, and once the elastic clamping plate fails, the motor directly loses the waterproof function, so that potential safety hazards are brought; the third kind adopts and sets up two notches in the end cover side and place the seat of being qualified for the next round of competitions to pin the clamp plate with four screws and play sealed effect, nevertheless the machining precision of this kind of structure end cover notch is high, and four screws of manual installation lead to intensity of labour big, and production efficiency is low, and manufacturing cost is high. Therefore, a new sealing design is urgently needed to solve the problems of sealing performance, batch production and cost of the EPS brush waterproof motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art not enough, provide a EPS has brush waterproof motor seal structure, its processing is simple, does benefit to batch production and practices thrift the cost, and sealing performance and security performance height.
In order to solve the technical problem, the technical scheme of the utility model is that:
an EPS brush waterproof motor sealing structure comprises a stator assembly and an end cover brush carrier rotor assembly arranged on the stator assembly;
the end cover brush carrier rotor assembly comprises an end cover, two wire outlet seats for connecting a power wire in a penetrating way are mounted at the side end of the end cover, a pressing plate is further arranged on the side end face of the end cover, and the two wire outlet seats penetrate through the pressing plate;
the stator assembly comprises a casing, an annular spigot is formed at the lower end of the end cover, an O-shaped rubber sealing ring is sleeved on the outer side of the spigot, the lower end face of the end cover is tightly attached to the upper end face of the casing, and the spigot is inserted into the casing.
Furthermore, a turning chamfer is formed in the top end of the inner side wall of the shell, and the O-shaped rubber sealing ring is tightly attached to the turning chamfer.
Furthermore, two tapered holes are formed in the end face of the side end of the end cover, the wire outlet seat is in a tapered shape, and the wire outlet seat is in interference fit in the tapered holes.
Further, the pressure plate is fixed on the end face of the side end of the end cover through two locking screws.
Furthermore, the end cover and the shell are fastened and connected through two fastening screws.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
1. the utility model discloses a seal structure's such as clamp plate, play line seat, O type rubber seal's composite design can effectively improve the processing degree of difficulty of part, and then reduces work intensity of operation, improves the production efficiency of part and motor, does benefit to batch production, reduces motor cost, promotes the competitiveness of enterprise.
2. The utility model discloses a clamp plate, the sealing system between seat and the end cover of being qualified for the next round of competitions to and the sealing system between end cover, casing, tang and the O type rubber seal circle, can fully guarantee the sealed effect of whole motor, and then guarantee navigating mate's safety.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a partial sectional view of the present invention;
10, an end cover brush carrier rotor assembly; 11. an end cap; 111. stopping the opening; 112. a tapered hole; 113. an end cap mounting plane; 12. pressing a plate; 13. locking the screw; 14. a wire outlet seat; 15. a power line; 20. fastening screws; 30. a stator assembly; 31. a housing; 311. turning a chamfer; and 40. O-shaped rubber sealing rings.
Detailed Description
In order that the present invention may be more clearly understood, the following detailed description is given with reference to the accompanying drawings.
As shown in fig. 1-3, in the present embodiment, a brush-containing waterproof sealing structure for an EPS motor is provided, which is composed of a stator assembly 30 and an end cover brush holder rotor assembly 10. Specifically, the end cover brush holder rotor assembly 10 comprises an end cover 11, two wire outlet seats 14 are mounted at the side end of the end cover 11, through holes are formed in the wire outlet seats 14 and used for connecting a power wire 15 in a penetrating mode, meanwhile, a pressing plate 12 is fixedly connected to the side end face of the end cover 11, two through holes are formed in the pressing plate 12, and the two wire outlet seats 14 just penetrate through the pressing plate 12. More specifically, two blind screw holes are formed in the end face of the end cover, and the pressing plate 12 is fixedly attached to the end face of the end cover 11 through two locking screws 13, so that a first sealing system is formed among the pressing plate 12, the wire outlet base 14 and the end cover 11. The stator assembly 30 comprises a cylindrical shell 31, an annular spigot 111 is formed at the lower end of the end cover 11, the outer diameter of the spigot 111 is smaller than that of the end cover 11, and an O-shaped rubber sealing ring 40 is sleeved outside the spigot 111; the lower end surface of the end cover 11 with the diameter larger than the spigot 111 is the end cover mounting plane 113, the end cover mounting plane 113 clings to the upper end surface of the machine shell 31 during assembly, and the spigot 111 is inserted and clings to the inner side wall of the machine shell 31. Meanwhile, the end cover 11 is fastened and connected with the outer side of the machine shell 31 through two fastening screws 20, so that a second sealing system is formed among the end cover 11, the spigot 111, the O-shaped rubber sealing ring 40 and the machine shell 31. Through the design of the two sealing systems, the sealing effect of the whole motor can be fully ensured, and the safety of a driver is further well ensured. In addition, through the simple assembly of the pressing plate 12, the wire outlet seat 14, the end cover 11, the O-shaped rubber sealing ring 40 and the casing 31 and the fastening of the two fastening screws 20 and the two locking screws 13, the processing difficulty of the parts can be effectively improved on the basis of ensuring the sealing effect, the production efficiency of the parts and the motor is improved, the batch production and the cost reduction are facilitated, and the competitiveness of enterprises is effectively improved.
In order to further ensure the sealing effect during assembly, a turn chamfer 311 is formed at the top end of the inner side wall of the casing 31 in the embodiment, and the O-shaped rubber sealing ring 40 is just tightly attached to the turn chamfer 311 during assembly, namely, a sealing space with a triangular cross section is formed between the outer side wall surface of the spigot 111, the end cover mounting plane 113 and the turn chamfer 311, and the O-shaped rubber sealing ring 40 is just tightly attached to the sealing space, so that the sealing effect can be improved, and the service life of the sealing ring is prolonged.
In order to further improve the sealing effect of the first sealing system, two tapered holes 112 are formed in the end face of the end cover 11 of the embodiment, the roots of the two wire outlet seats 14 are also tapered, and the two wire outlet seats 14 are in interference fit with the two tapered holes 112, so that the tightness between the wire outlet seats 14 and the end cover 11 can be improved, the looseness and the shaking can be prevented, the service life is prolonged, and the sealing effect is further ensured.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments further describe the technical problems, technical solutions and advantages of the present invention in detail, it should be understood that the above only are embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a EPS has brush waterproof motor seal structure which characterized in that: comprises a stator assembly (30) and an end cover brush carrier rotor assembly (10) arranged on the stator assembly (30);
the end cover brush holder rotor assembly (10) comprises an end cover (11), two outgoing line seats (14) used for being connected with a power line (15) in a penetrating mode are mounted at the side end of the end cover (11), a pressing plate (12) is further arranged on the side end face of the end cover (11), and the two outgoing line seats (14) penetrate through the pressing plate (12);
the stator assembly (30) comprises a shell (31), an annular spigot (111) is formed at the lower end of the end cover (11), an O-shaped rubber sealing ring (40) is sleeved on the outer side of the spigot (111), the lower end face of the end cover (11) is tightly attached to the upper end face of the shell (31), and the spigot (111) is inserted into the shell (31).
2. The EPS brushed waterproof motor sealing structure according to claim 1, characterized in that: turning chamfer (311) have been seted up on casing (31) inside wall top, O type rubber seal (40) hug closely turning chamfer (311).
3. The EPS brushed waterproof motor sealing structure according to claim 1, characterized in that: two tapered holes (112) are formed in the end face of the side of the end cover (11), the outgoing line seat (14) is in a tapered shape, and the outgoing line seat (14) is in interference fit in the tapered holes (112).
4. The EPS brushed waterproof motor sealing structure according to claim 1, characterized in that: the pressure plate (12) is fixed on the end face of the side of the end cover (11) through two locking screws (13).
5. The EPS brushed waterproof motor sealing structure according to claim 1, characterized in that: the end cover (11) and the shell (31) are fastened and connected through two fastening screws (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220727714.2U CN217087639U (en) | 2022-03-28 | 2022-03-28 | EPS has brush waterproof motor seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220727714.2U CN217087639U (en) | 2022-03-28 | 2022-03-28 | EPS has brush waterproof motor seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087639U true CN217087639U (en) | 2022-07-29 |
Family
ID=82552520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220727714.2U Active CN217087639U (en) | 2022-03-28 | 2022-03-28 | EPS has brush waterproof motor seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087639U (en) |
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2022
- 2022-03-28 CN CN202220727714.2U patent/CN217087639U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 266, Fumin Road, Lucheng Street, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Nedco Kaiyu Automotive Appliances (Jiangsu) Co.,Ltd. Address before: 213000 No. 156 Dongfang East Road, Changzhou City, Jiangsu Province Patentee before: NIDEC KAIYU AUTO ELECTRIC (JIANGSU) Co.,Ltd. |