CN213906453U - Motor and motor winding lead and low-voltage wire harness sealing structure - Google Patents
Motor and motor winding lead and low-voltage wire harness sealing structure Download PDFInfo
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- CN213906453U CN213906453U CN202022440352.2U CN202022440352U CN213906453U CN 213906453 U CN213906453 U CN 213906453U CN 202022440352 U CN202022440352 U CN 202022440352U CN 213906453 U CN213906453 U CN 213906453U
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- winding lead
- wire harness
- sealing ring
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Abstract
The utility model discloses a structure for sealing a motor winding lead wire and a low-voltage wire harness, which relates to the technical field of motors and comprises an insulating plate and a first sealing ring, wherein the insulating plate is arranged between a motor shell and a junction box through the first sealing ring; the insulation plate is matched with the motor shell through the first sealing ring and is provided with a wiring hole for penetrating a winding lead and a low-voltage wire harness; and a second sealing ring is arranged in the wiring hole, and the winding lead and the low-voltage wire harness are sleeved with the second sealing ring respectively. The first sealing ring seals a gap between the insulating plate and the motor shell, and the second sealing ring seals gaps between the winding lead, the low-voltage wire harness and the wiring hole respectively, so that the insulating plate divides the motor shell and the junction box into two independent sealing areas, and the inside vapor of the motor shell is ensured not to flow into the junction box, thereby avoiding the electrical fault caused by the condensation generated inside the junction box.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to motor and motor winding lead wire and low pressure pencil sealed structure.
Background
At present, the power of a new energy motor is high, the internal temperature of the motor rises after the motor runs for a long time, water vapor in the motor rises to a motor junction box, the water vapor rises to the junction box through a wiring hole or a gap formed by connecting an insulating plate and the motor, the temperature is low because a junction box cover contacts with the outside, the water vapor is directly liquefied and condensed into condensed water in the junction box when meeting cold, the condensed water is gathered at the position of a low-pressure part in the junction box to easily cause insulation faults, the insulation performance is reduced, and the insulation and the structure of the motor are adversely affected and corroded.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
To can make in the motor vapor rises to the motor terminal box, lead to the technical problem that insulating properties reduces, the utility model provides a structure that motor and motor winding lead wire and low pressure pencil are sealed, it is through setting up first sealing washer and second sealing washer on the insulation board to avoid the electrical fault of low pressure connector in the terminal box, guarantee the reliable operation of motor.
2. Technical scheme
In order to solve the above problem, the utility model provides a technical scheme does: a structure for sealing a motor winding lead and a low-voltage wire harness comprises an insulation plate and a first sealing ring, wherein the insulation plate is arranged between a motor shell and a junction box through the first sealing ring; the insulation plate is matched with the motor shell through the first sealing ring and is provided with a wiring hole for penetrating a winding lead and a low-voltage wire harness; and a second sealing ring is arranged in the wiring hole, and the winding lead and the low-voltage wire harness are sleeved with the second sealing ring respectively.
The first sealing ring seals a gap between the insulating plate and the motor shell, and the second sealing ring seals gaps between the winding lead, the low-voltage wire harness and the wiring hole respectively, so that the insulating plate divides the motor shell and the junction box into two independent sealing areas, and the inside vapor of the motor shell is ensured not to flow into the junction box, thereby avoiding the electrical fault of a low-voltage connector in the junction box and ensuring the reliable operation of the motor. In other embodiments, the insulating plate may be coupled to the terminal box by the first sealing ring.
Optionally, the second sealing washer establishes the portion and establishes the spacing portion of being connected with the cover including the cover, the cover establishes the portion and passes the wiring hole and be used for the cover to establish winding lead wire and low pressure pencil, spacing portion supports with the insulation board contact and leans on.
Optionally, the sleeving part is vertically connected to the center of the limiting part.
Optionally, the position-limiting part is provided with a plurality of annular protrusions distributed in parallel so that the position-limiting part is corrugated.
Optionally, the length of the sleeve portion is greater than the length of the wiring hole.
Optionally, the first sealing ring and the second sealing ring are both made of ethylene propylene diene monomer or silica gel.
Optionally, when the winding lead is established to the cover portion cover, the internal diameter of the cover portion is 70 ~ 80% of the winding lead external diameter, and when the low voltage pencil is established to the cover portion cover, the internal diameter of the cover portion is 70 ~ 80% of the low voltage pencil external diameter.
Optionally, the first sealing ring is arranged around the insulating plate through a vulcanization process, and the second sealing ring is arranged on the insulating plate through a vulcanization process.
The utility model also discloses a motor, including motor casing, terminal box and the above motor winding lead wire and low pressure pencil sealed structure, motor casing includes the end cover, the insulation board cooperates through first sealing washer and end cover, one side that the end cover deviates from motor casing is connected with the terminal box, the cover is established the position and is located the terminal box, spacing position is in the motor casing.
Optionally, the end cover is provided with a screw hole, and the junction box is provided with a screw matched with the screw hole.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the structure that motor winding lead wire and low pressure pencil are sealed that this application embodiment provided, the gap between insulation board and the motor casing is lived in first sealing washer seal, the gap between winding lead wire, low pressure pencil and the wiring hole is lived respectively to the second sealing washer seal, make the insulation board divide motor casing and terminal box into two solitary sealed regions, ensure that the inside vapor of motor casing can not flow into inside the terminal box to avoid the electric fault of low pressure connector in the terminal box, guarantee the reliable operation of motor.
(2) The structure that motor winding lead wire and low pressure pencil are sealed that this application embodiment provided, the gap between winding lead wire, low pressure pencil and the wiring hole is established to the cover portion seal, ensures that the inside vapor of motor casing can not flow into the terminal box through the gap inside, and spacing portion has increased the area of contact between second sealing washer and the insulation board, makes the setting of second sealing washer on the insulation board more firm.
Drawings
Fig. 1 is a schematic structural diagram of a structure for sealing a motor winding lead and a low-voltage wire harness according to an embodiment of the present invention;
fig. 2 is a schematic top view of a structure for sealing a motor winding lead and a low-voltage wire harness according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a structure of a motor winding lead and a low-voltage wire harness sealing structure according to an embodiment of the present invention;
fig. 4 is an exploded view of a motor according to an embodiment of the present invention.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.
Example 1
With reference to fig. 1-4, the structure for sealing the winding lead and the low-voltage wire harness of the motor of the present embodiment includes an insulating plate 1 and a first sealing ring 2, wherein the insulating plate 1 is disposed between a motor housing 6 and a terminal box 5 through the first sealing ring 2; the insulation plate 1 is matched with a motor shell 6 through the first sealing ring 2, and the insulation plate 1 is provided with a wiring hole 4 for penetrating a winding lead 7 and a low-voltage wire harness 8; and a second sealing ring 3 is arranged in the wiring hole 4, and the winding lead 7 and the low-voltage wire harness 8 are respectively sleeved with the second sealing ring 3. The first sealing ring 2 seals a gap between the insulating plate 1 and the motor shell 6, and the second sealing ring 3 seals gaps between the winding lead 7, the low-voltage wire harness 8 and the wiring hole 4 respectively, so that the insulating plate 1 divides the motor shell 6 and the junction box 5 into two independent sealing areas, and the inside water vapor of the motor shell 6 is ensured not to flow into the junction box, thereby avoiding the electrical fault of a low-voltage connector in the junction box 5 and ensuring the reliable operation of the motor. In other embodiments, the insulating plate 1 may be coupled to the terminal box 5 through the first sealing ring 2.
Example 2
With reference to fig. 1-4, compared with the technical solution of embodiment 1, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows: second sealing washer 3 establishes portion 31 and establishes the spacing portion 32 of being connected with the cover including the cover, the cover is established portion 31 and is passed wiring hole 4 and is used for the cover to establish winding lead wire 7 and low pressure pencil 8, spacing portion 32 supports with insulation board 1 contact and leans on. The sleeve portion 31 seals gaps between winding leads, low-voltage wire harnesses and wiring holes, so that water vapor inside the motor shell 6 cannot flow into the junction box 5 through the gaps, the limiting portion 32 increases the contact area between the second sealing ring 3 and the insulating plate 1, and the second sealing ring 3 is arranged on the insulating plate 1 more firmly.
Example 3
With reference to fig. 1-4, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows compared with the technical solutions of embodiments 1 or 2: the sleeve portion 31 is vertically connected to the center of the limiting portion 32. The sleeving part 31 is vertically connected to the center of the limiting part 32, and when the winding lead 7 and the low-voltage wiring harness 8 penetrate through the sleeving part 31, the limiting part 32 is stressed uniformly, so that firmness between the second sealing ring 3 and the insulating plate 1 is improved.
Example 4
With reference to fig. 1-4, compared with any of the technical solutions of embodiments 1-3, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows: the position-limiting portion 32 has a plurality of annular protrusions 321 distributed in parallel to make the position-limiting portion 32 in an accordion shape. When winding lead 7 and low-voltage wire harness 8 receive the pulling, spacing portion 32 also atress thereupon, and the setting of annular arch 321 makes spacing portion 32 play the effect of buffering when the atress is pulled, prevents that spacing portion 32 from taking place plastic deformation.
Example 5
With reference to fig. 1 to 4, compared with any one of the technical solutions of embodiments 1 to 4, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment may be improved as follows: the length of the sleeve portion 31 is greater than that of the wiring hole 4. The length of the sleeve part 31 is larger than that of the wiring hole 4, so that the sleeve part 31 extends into the junction box 5, when the winding lead 7 and the low-voltage wire harness 8 are pulled to deviate, the sleeve part 31 extending into the junction box 5 also deviates accordingly, and the sealing performance of the sleeve part 31 cannot be influenced.
Example 6
With reference to fig. 1 to 4, compared with any of the technical solutions of embodiments 1 to 5, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows: the first sealing ring 2 and the second sealing ring 3 are both made of ethylene propylene diene monomer or silica gel. The technical scheme of the embodiment adopts the ethylene propylene diene monomer, and the ethylene propylene diene monomer has good elasticity, insulating property and superheated water resistance, and is a preferable material for sealing products. In other embodiments, the first sealing ring 2 and the second sealing ring 3 may be made of silicone.
Example 7
With reference to fig. 1 to 4, compared with any of the technical solutions of embodiments 1 to 6, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows: when the winding lead 7 is sleeved on the sleeving part 31, the inner diameter of the sleeving part 31 is 70-80% of the outer diameter of the winding lead 7, and when the low-voltage wiring harness 8 is sleeved on the sleeving part 31, the inner diameter of the sleeving part 31 is 70-80% of the outer diameter of the low-voltage wiring harness 8. The sleeve portion 31 has elasticity, when the inner diameter of the sleeve portion 31 is 70-80% of the outer diameter of the winding lead 7 and 70-80% of the outer diameter of the low-voltage wire harness 8, the sleeve portion 31 can be penetrated by the winding lead 7 and the low-voltage wire harness 8 and tightly covers the outer walls of the winding lead 7 and the low-voltage wire harness 8, so that the sealing effect is achieved, and the diameter size of the sleeve portion 31 is changed along with the size of the winding lead 7 and the size of the low-voltage wire harness 8 are not fixed.
Example 8
With reference to fig. 1 to 4, compared with any of the technical solutions of embodiments 1 to 7, the structure for sealing the motor winding lead and the low-voltage wire harness of the present embodiment can be improved as follows: the first sealing ring 2 is arranged around the insulating plate 1 through a vulcanization process, and the second sealing ring 3 is arranged on the insulating plate 1 through a vulcanization process. The vulcanization process changes the molded rubber into elastic rubber, and meets the requirement of the first sealing ring 2 and the second sealing ring 3 on elasticity.
Example 9
With reference to fig. 1 to 4, the motor of the present embodiment includes a motor housing 6, a terminal box 5, and a structure for sealing a winding lead of the motor and a low-voltage wire harness according to any one of technical solutions of embodiments 1 to 8, where the motor housing 6 includes an end cover 61, the insulating plate 1 is matched with the end cover 61 through a first seal ring 2, one side of the end cover 61 away from the motor housing 6 is connected with the terminal box 5, the sheathing part 31 is located in the terminal box 5, and the limiting part 32 is located in the motor housing 6. The motor shell 6 is connected with the junction box 5 through the end cover 61, the first sealing ring 2 seals a gap between the insulating plate 1 and the end cover 61, and the second sealing ring 3 seals gaps between the winding lead 7, the low-voltage wire harness 8 and the wiring hole 4 respectively, so that the insulating plate 1 divides the motor shell 6 and the junction box 5 into two independent sealing areas, water vapor inside the motor shell 6 is ensured not to flow into the junction box, thereby avoiding the electrical fault of a low-voltage connector in the junction box 5 and ensuring the reliable operation of the motor.
Example 10
With reference to fig. 1 to 4, compared with any of the embodiments 1 to 9, the motor of the present embodiment may be modified as follows: the end cover 61 is provided with a screw hole 611, and the junction box 5 is provided with a screw 51 matched with the screw hole. The terminal box 5 is connected with the end cover 61 through the screw hole 611 of the screw 51, so that the terminal box is convenient to disassemble.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A structure for sealing a motor winding lead and a low-voltage wire harness is characterized by comprising an insulation plate and a first sealing ring, wherein the insulation plate is arranged between a motor shell and a junction box through the first sealing ring;
the insulation plate is matched with the motor shell through the first sealing ring and is provided with a wiring hole for penetrating a winding lead and a low-voltage wire harness;
and a second sealing ring is arranged in the wiring hole, and the winding lead and the low-voltage wire harness are sleeved with the second sealing ring respectively.
2. The structure for sealing a motor winding lead and a low-voltage wire harness according to claim 1, wherein the second sealing ring comprises a sleeving part and a limiting part connected with the sleeving part, the sleeving part passes through the wiring hole and is used for sleeving the winding lead and the low-voltage wire harness, and the limiting part is in contact with the insulating plate to abut against the insulating plate.
3. The structure for sealing a motor winding lead and a low-voltage wire harness as claimed in claim 2, wherein the sheathing part is vertically connected to a center of the position-limiting part.
4. The motor winding lead and low-voltage wire harness sealing structure as claimed in claim 2, wherein the position-limiting portion has a plurality of annular protrusions distributed in parallel to make the position-limiting portion in a corrugated shape.
5. The structure for sealing a motor winding lead wire and a low-voltage wire harness according to claim 3, wherein the length of the sheathing part is greater than that of the wire connection hole.
6. The structure for sealing the motor winding lead and the low-voltage wire harness according to any one of claims 2 to 5, wherein the first sealing ring and the second sealing ring are both made of ethylene propylene diene monomer rubber or silica gel.
7. The structure for sealing a winding lead and a low-voltage wire harness of a motor according to claim 2, wherein when the winding lead is sleeved on the sleeving part, the inner diameter of the sleeving part is 70-80% of the outer diameter of the winding lead; when the low-voltage wiring harness is sleeved on the sleeving part, the inner diameter of the sleeving part is 70-80% of the outer diameter of the low-voltage wiring harness.
8. The structure for sealing a motor winding lead and a low-voltage wire harness according to claim 5, wherein the first sealing ring is disposed around the insulating plate through a vulcanization process, and the second sealing ring is disposed on the insulating plate through a vulcanization process.
9. A motor is characterized by comprising a motor shell, a junction box and a structure for sealing a motor winding lead and a low-voltage wire harness according to any one of claims 2 to 8, wherein the motor shell comprises an end cover, an insulating plate is matched with the end cover through a first sealing ring, one side, away from the motor shell, of the end cover is connected with the junction box, the sleeving part is located in the junction box, and the limiting part is located in the motor shell.
10. The motor of claim 9, wherein the end cap has a threaded hole and the terminal box has a screw that mates with the threaded hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020211810450 | 2020-06-23 | ||
| CN202021181045 | 2020-06-23 |
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| Publication Number | Publication Date |
|---|---|
| CN213906453U true CN213906453U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022440352.2U Active CN213906453U (en) | 2020-06-23 | 2020-10-28 | Motor and motor winding lead and low-voltage wire harness sealing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021111001A1 (en) | 2021-04-29 | 2022-11-03 | Schaeffler Technologies AG & Co. KG | Shielding cap against air and creepage distances for welding points on the electric motor |
| WO2023221372A1 (en) * | 2022-05-20 | 2023-11-23 | 苏州巩诚电器技术有限公司 | New type insulating and sealing plug box |
-
2020
- 2020-10-28 CN CN202022440352.2U patent/CN213906453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021111001A1 (en) | 2021-04-29 | 2022-11-03 | Schaeffler Technologies AG & Co. KG | Shielding cap against air and creepage distances for welding points on the electric motor |
| WO2023221372A1 (en) * | 2022-05-20 | 2023-11-23 | 苏州巩诚电器技术有限公司 | New type insulating and sealing plug box |
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