CN204538840U - A kind of pump motor of coil external wire when protecting injection moulding - Google Patents
A kind of pump motor of coil external wire when protecting injection moulding Download PDFInfo
- Publication number
- CN204538840U CN204538840U CN201520022332.XU CN201520022332U CN204538840U CN 204538840 U CN204538840 U CN 204538840U CN 201520022332 U CN201520022332 U CN 201520022332U CN 204538840 U CN204538840 U CN 204538840U
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- Prior art keywords
- coil
- wire
- wire clamp
- external
- plastic packaging
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 50
- 239000004033 plastic Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 5
- 239000003292 glue Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract 10
- 238000012797 qualification Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A kind of pump motor of coil external wire when protecting injection moulding; comprise rotor assembly, stator core, coil and be wrapped in the plastic packaging housing outside coil; the external wire of coil is connected with coil and penetrates plastic packaging housing and extends to plastic packaging outside; it also comprises wire clamp; wire clamp by external for coil wrapped in wire in the inner and clamp; one section of wire clamp is positioned within plastic packaging housing, and remaining one section is stretched out plastic packaging outside.The utility model is applied to wire clamp in the injection moulding of the external wire of coil, and one section is embedded in plastic packaging housing, and another section is exposed outside plastic packaging housing.Wire clamp can prevent wire from occurring damaging in coil injection molding (plastic packaging) process, and in addition, wire clamp, between wire and mould, can improve the sealing effectiveness in die cavity, and when preventing injection moulding, plastic melt is gone out from wire periphery.Wire clamp the qualification rate that can improve coil plastic packaging is set, occur that the insulation of wire weighs wounded when solving coil plastic packaging, damaged and rush the bad problems such as glue.
Description
Technical Field
The utility model relates to a water pump motor technical field.
Background
For a water pump motor, when a coil with an external lead is subjected to injection molding, the coil is placed in an injection mold cavity, the lead is transited to the outside of the mold through a wire passing groove on the mold, the wire passing groove compresses an insulating sheath of the lead, and plastic melt is not punched out from the periphery of the lead of the wire passing groove during injection molding and glue punching. For the coil that has external wire in the (plastic envelope) process of moulding plastics, can have following problem:
1. the mold is provided with a wire passing groove, and in order to prevent plastic melt from rushing out from the periphery of the lead and between the lead and the insulating sheath during injection molding, the wire passing groove needs to be clamped tightly, so that clamping marks are generated on the insulating sheath of the lead.
2. In the injection molding process, because the temperature of the mold is higher, the insulating sheath of one section of the lead above the wire passing groove of the mold can be softened, so that the sealing effect is reduced, and the plastic melt is outwards flushed from the wire passing groove and even breaks the insulating sheath of the lead.
3. When the die is closed, the insulating sheath of the lead is easily damaged.
Disclosure of Invention
An object of the utility model is to solve above problem, provide a water pump motor, the external wire of coil is impaired when it can avoid moulding plastics.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a can protect water pump motor of external wire of coil when moulding plastics, includes rotor subassembly, stator core, coil and wraps up the plastic envelope casing outside the coil, and the external wire of coil links to each other with the coil and runs through the plastic envelope casing and extend to the plastic envelope casing outside, and it still includes the fastener, and the fastener wraps up the external wire of coil in it and presss from both sides tightly, and one section of fastener is located the plastic envelope casing, and one section of remaining stretches out the plastic envelope casing outside.
Specifically, the wire clamp is provided with a plurality of channels for the external wires of the coil to pass through.
As a simple and effective implementation mode, the wire clamp comprises an upper wire clamp cover and a lower wire clamp cover, wherein the upper wire clamp cover and the lower wire clamp cover are respectively provided with a semi-cylindrical groove, and a cylindrical channel for the external wire of the coil to pass through is formed after the upper wire clamp cover and the lower wire clamp cover are butted.
In one embodiment, the upper clamp cover and the lower clamp cover are two independent parts which are detachably separated and are fixed together through scarf joint.
In another embodiment, the upper and lower cable clamp covers have a connecting bendable connecting portion on one side, and the upper and lower cable clamp covers are in open or closed butt joint with respect to each other through the connecting portion.
Preferably, the inner wall of the channel through which the external lead of the coil passes is provided with a plurality of transverse ribs.
The utility model discloses in being applied to moulding plastics of the external wire of coil to the fastener, one section buries in the plastic envelope casing, and another section exposes outside the plastic envelope casing. The fastener can prevent that the wire from the damage appearing in coil injection molding (plastic envelope) in-process, and in addition, the fastener can improve the sealed effect in the die cavity between wire and mould, and the plastics fuse-element is followed the wire peripheral and is gone out when preventing to mould plastics. Due to the arrangement of the wire clamp, the qualified rate of coil plastic package can be improved, and the problems of insulation crush, damage, glue punching and the like of a lead during coil plastic package are solved.
Drawings
FIG. 1 is a cross-sectional schematic view of an assembled AC PMSM motor.
Fig. 2 is an exploded view of the ac permanent magnet synchronous sump pump motor after assembly.
Fig. 3a is a schematic view of an open state of the wire clamp of embodiment 1.
Fig. 3b is a schematic view of a closed state of the wire clamp of embodiment 1.
Fig. 4a is a schematic view of an open state of the wire clamp of embodiment 2.
Fig. 4b is a schematic view of a closed state of the wire clamp of embodiment 2.
Fig. 5a is a cross-sectional view of the wire-passing groove without ribs.
Fig. 5b is a cross-sectional view of the wire passing groove with a rib.
Fig. 5c is a schematic cross-sectional view of the wire-passing groove with three ribs.
Fig. 6a is a schematic cross-sectional view of a rib having a rectangular cross-section.
Fig. 6b is a schematic cross-sectional view of a bead with a triangular cross-section.
Fig. 6c is a schematic cross-sectional view of a rib with an arc-shaped cross-section.
Wherein,
1-rotor shaft, 2-rear shaft sleeve, 3-pump body, 4-permanent magnet, 5-front bearing, 6-impeller fixing gasket, 7-shaft sleeve, 8-damping elastomer, 9-fan blade, 10-coil, 11-framework, 12-stator iron core, 13-plastic package shell, 14-wire clamp, 14.1-groove, 14.2-convex rib, 14.3-wire clamp upper cover, 14.4-wire clamp lower cover, 14.5-wire clamp upper cover, 14.6-wire clamp lower cover, 14.7-connector, 14.8-positioning rib, 15-lead and 16-thermal protector.
Detailed Description
It is to be understood that the directional terms upper, lower, left, right, upward, downward, leftward, rightward and the like in the description are used for describing the orientations shown in the drawings, and are not restrictive. The terms inward, outward, inboard, outboard herein refer to ranges relative to the center of the component, e.g., with reference to the motor axis, with the inward and inboard referring to positions or orientations closer to or pointing toward the motor axis and the outward and outboard referring to locations further from the center of the motor, if not specifically stated. Furthermore, the terms horizontal, upright, suspended, etc. do not imply that the components are required to be absolutely horizontal or suspended, but rather are allowed to tilt somewhat. Such as horizontal simply means that its direction is more horizontal than vertical, and does not mean that the structure is perfectly horizontal, but may be slightly inclined.
Example 1
Fig. 1 and 2 show an ac permanent magnet synchronous drain pump, which can be used in washing machines, dish washers, footbath, massage baths, etc. The alternating current permanent magnet synchronous drainage pump comprises a rotor assembly, a coil 10, a framework 11, a stator core 12, a pump body 3, a fan blade 9 and the like. The permanent magnet rotor 4, the rotor shaft 1 and the shaft sleeve 7 are fastened together to form a rotor assembly. The coil 10 is assembled on the framework 11, an alternating magnetic field generated after the coil 10 is electrified drives the rotor assembly to rotate through the stator iron core 12, and the shaft sleeve 7 pushes the fan blades 9 to rotate through the damping elastic body 8.
The plastic package casing 13 with thickness is wrapped outside the coil 10. The external lead 15 of the coil 10 is connected with the coil 10 and extends to the outside of the plastic package casing through the plastic package casing 13 of the coil. The wire clamp 14 wraps the external lead 15 of the coil inside, and during injection molding, the wire clamp 14 extends out of the mold from the inner cavity of the mold. Thus, after the injection molding is completed, the wire clamp is injected into the side wall of the plastic package shell 13 by one section, the wire clamp is wrapped by the plastic package coil by a certain length, and the rest section extends to the outside of the plastic package shell, so that the wire clamp is not easy to fall off.
As shown in fig. 3a,3b,4a,4b, the wire clamp is provided with a plurality of channels for the external wires of the coil to pass through. After the injection mold is closed, the inner wall of the channel is in transition fit with the lead, and the sufficient sealing effect between the wire clamp and the lead is ensured. In order to further achieve a more satisfactory sealing effect, the inner wall of the channel is provided with a plurality of transverse ribs 14.2. As shown in fig. 5a,5b,5c, there are cases where no transverse rib is provided, one transverse rib is provided, and three transverse ribs are provided, respectively. The ribs may take different shapes, being rectangular in cross-section as shown in fig. 6a, triangular in cross-section as shown in fig. 6b, and arcuate in cross-section as shown in fig. 6 c.
As shown in fig. 3a and 3b, the wire clamp includes a wire clamp upper cover 14.3 and a wire clamp lower cover 14.4 which are detachably separated, the wire clamp upper cover 14.3 and the wire clamp lower cover 14.4 are respectively provided with a semi-cylindrical groove 14.1, and the two are butted to form a cylindrical passage through which an external lead of the coil passes. The wire clamp upper cover 14.3 and the wire clamp lower cover 14.2 are provided with a plurality of concave positions and convex positions, so that the wire clamp upper cover and the wire clamp lower cover are closed more firmly and are not easy to misplace after being fastened.
In addition, a positioning rib 14.8 is added on the wire clamp to ensure the assembly distance between the wire clamp and the framework. Of course, the positioning ribs can also be arranged on the framework.
Before the coil injection molding operation, the rotor assembly, the coil, the framework and the like are assembled in place, and then a wire clamp is clamped on a power supply connecting wire or a thermal protector wire of the coil. The position and length of the clamp are such that after closing, one section of the clamp is inside the mould and the remaining section is outside the mould. The mould compresses tightly the fastener, and the wire is pressed from both sides tight parcel by the line to prevent that the plastics fuse-element from punching out from the wire periphery when moulding plastics, solve the insulating crushing of wire, damaged and the bad problem of dashing glue when coil plastic envelope appears. After the injection mold is closed and injection molding is carried out, one section of the wire clamp is buried in the plastic package shell, and the other section of the wire clamp extends out of the plastic package shell.
Example 2
The present embodiment is substantially the same in structure form as the present embodiment, except for the structure form of the wire clamp. As shown in fig. 4a,4b, the upper clip cover 14.5 and the lower clip cover 14.6 have a continuous bendable connecting section 14.7 on one side. The wire clamp upper cover 14.5 and the wire clamp lower cover 14.6 are integrated through a connecting part, and can be oppositely opened or closed and butted through the connecting part 14.7.
The utility model discloses do not limit to and be applied to alternating current synchronous drain pump forever, other water pump motor as long as its coil connection has external wire and needs the plastic envelope protection, all can use this structure.
The present invention includes, but is not limited to, the embodiments and the drawings, and all other product structures having the same material content as the technical solution of the present invention fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a can protect water pump motor of external wire of coil when moulding plastics, includes rotor subassembly, stator core, coil and wraps up the plastic envelope casing outside the coil, the external wire of coil links to each other with the coil and runs through the plastic envelope casing and extend to the plastic envelope casing outside, its characterized in that: the wire clamp wraps the external wire of the coil in the wire clamp and clamps the external wire, one section of the wire clamp is located in the plastic package shell, and the other section of the wire clamp extends out of the plastic package shell.
2. The water pump motor capable of protecting the coil external lead wire during injection molding according to claim 1, characterized in that: the wire clamp is provided with a plurality of channels for the external wires of the coils to pass through.
3. The water pump motor capable of protecting the coil external lead wire during injection molding according to claim 2, characterized in that: the wire clamp comprises a wire clamp upper cover and a wire clamp lower cover, wherein the wire clamp upper cover and the wire clamp lower cover are respectively provided with a semi-cylindrical groove, and a cylindrical passage for the external wire of the coil to pass through is formed after the wire clamp upper cover and the wire clamp lower cover are butted.
4. The water pump motor capable of protecting the coil external lead wire during injection molding according to claim 3, characterized in that: the wire clamp upper cover and the wire clamp lower cover are two independent parts which can be detached and separated and are fixed together through scarf joint.
5. The water pump motor capable of protecting the coil external lead wire during injection molding according to claim 3, characterized in that: the wire clamp upper cover and the wire clamp lower cover are provided with a connecting part which is connected and can be bent at one side, and the wire clamp upper cover and the wire clamp lower cover are oppositely opened or closed and butted through the connecting part.
6. The water pump motor capable of protecting the coil external lead wire during injection molding according to claim 2 or 3, characterized in that: the inner wall of the channel through which the external lead of the coil passes is provided with a plurality of transverse convex ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022332.XU CN204538840U (en) | 2015-01-13 | 2015-01-13 | A kind of pump motor of coil external wire when protecting injection moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022332.XU CN204538840U (en) | 2015-01-13 | 2015-01-13 | A kind of pump motor of coil external wire when protecting injection moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538840U true CN204538840U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520022332.XU Active CN204538840U (en) | 2015-01-13 | 2015-01-13 | A kind of pump motor of coil external wire when protecting injection moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123672A1 (en) * | 2021-12-31 | 2023-07-06 | 中山大洋电机股份有限公司 | Lead-out wire sheath and motor applying same |
-
2015
- 2015-01-13 CN CN201520022332.XU patent/CN204538840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123672A1 (en) * | 2021-12-31 | 2023-07-06 | 中山大洋电机股份有限公司 | Lead-out wire sheath and motor applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Hanyu Group Co., Ltd. Address before: 529000 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |