CN217445133U - Plastic package stator and plastic package motor - Google Patents
Plastic package stator and plastic package motor Download PDFInfo
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- CN217445133U CN217445133U CN202221018187.4U CN202221018187U CN217445133U CN 217445133 U CN217445133 U CN 217445133U CN 202221018187 U CN202221018187 U CN 202221018187U CN 217445133 U CN217445133 U CN 217445133U
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Abstract
The utility model discloses a plastic package stator and plastic package motor, including stator module, set up a terminal box on stator module, the terminal box embeds there are stator lead-out wire and output terminal, and the terminal box is installed on the terminal box and forms the labyrinth seal structure with the terminal box, the utility model discloses a set up a terminal box and a terminal box on stator module, and form the terminal part of plastic package stator through thermosetting material or thermoplastic material parcel of moulding plastics, can prevent through the labyrinth seal structure that terminal box and terminal box formed that plastics from scurrying into the terminal box in the process of moulding plastics, avoid reducing the reliability because of terminal surface adheres to plastics; meanwhile, the positioning columns are arranged in the terminal box, the positioning holes are formed in the junction box, and the positioning columns of the terminal box are in interference fit with the positioning holes of the junction box, so that the terminal box is firmly fixed on the stator assembly, and the terminal box is prevented from falling off in the transportation process of the stator assembly.
Description
Technical Field
The utility model relates to a plastic envelope stator and plastic envelope motor belongs to plastic envelope motor technical field.
Background
The competition of the washing motor industry is already in the state of white heat, and the competitive motor product has the advantages of high efficiency, low noise, high quality and low cost. At present, the industry has a trend of replacing high-cost metal materials with low-cost plastic materials as the structural components of the motor, for example, some manufacturers are gradually changing aluminum or iron end covers into plastic end covers, or directly forming the metal structural components and the iron core in an integral injection molding mode so as to cancel part of the metal structure.
At present, the connection mode between a permanent magnet motor for a drum washing machine and the washing machine is divided into two modes, one mode is that a lead is led out from the motor, and a terminal component at the tail end of the lead is connected with a port of the washing machine; the other is that a terminal box is arranged on the motor, and an inserting terminal in the terminal box is connected with a port of the washing machine.
To the washing motor of taking plug terminal, adopt the integrative injection moulding structure of iron core to lead to terminal department flash easily, the reason lies in: in the injection molding process, the pressure of the plastic in a fluid state is high, the plastic is easy to escape from a gap between the terminal and the terminal box, and the plastic is attached to the terminal, so that the reliability of the terminal is reduced.
On the other hand, the problem that the terminal box/assembly falls off from the stator assembly is also easily caused due to vibration during transportation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a plastic envelope stator and plastic envelope motor solves the easy flash of current plastic envelope motor terminal subassembly process of moulding plastics and the terminal subassembly problem that easily drops from stator module.
The utility model adopts the following technical scheme:
a plastic package stator comprises a stator assembly, wherein a junction box is arranged on the stator assembly, a stator outgoing line and an output terminal are arranged in the junction box, and the terminal box is arranged on the junction box and forms a labyrinth sealing structure with the junction box.
The utility model discloses a set up a terminal box and a terminal box on stator module, inside the maze seal structure that terminal box and terminal box formed can prevent to mould plastics in-process plastics and scurry into the terminal box, avoid reducing the reliability because of terminal surface adheres to plastics.
The further setting is that:
stator module includes stator core, insulating frame, enameled wire, and stator core includes an annular portion and the tooth portion that is located the inner wall of annular portion and extends to the internal diameter direction, and the enameled wire coiling is at stator core's tooth portion and draws forth the connector lug, and insulating frame includes first insulation board and second insulation board, sets up respectively on two terminal surfaces of stator core, makes between stator core and the enameled wire insulating.
The first insulation plate is installed on one face, facing the end cover, of the stator core, the second insulation plate is installed on one face, far away from the end cover, of the stator core, and the junction box is arranged on the radial outer side of the first insulation plate.
The terminal box is provided with an upper opening, a plurality of wire grooves, a plurality of terminal grooves and a plurality of sealing grooves are formed in the terminal box, the wire grooves are used for containing enameled wire connector lugs led out from the stator winding, the terminal grooves are used for containing different terminals, and the wire grooves are communicated with the terminal grooves.
Each enameled wire connector lug that draws forth from stator winding imbeds respectively in the wire casing that corresponds to in entering into the terminal groove, the terminal includes U, V, W three-phase terminal and public terminal, every terminal imbeds respectively in different terminal grooves, and with enter into the enameled wire connector lug joint in the terminal groove together.
The terminal box comprises a cover plate, a butt joint box and a sealing box, wherein the butt joint box is positioned on the upper portion of the cover plate, the sealing box is positioned on the lower portion of the cover plate, the cover plate is arranged above the junction box and used for sealing an upper opening of the junction box, the butt joint box is arranged at the position, corresponding to a terminal groove, of the upper portion of the cover plate so as to ensure that a terminal arranged in the terminal groove penetrates through the cover plate and enters the butt joint box, the sealing box is positioned on the lower portion of the cover plate and used for sealing the cover plate and the junction box, the sealing box comprises a plurality of sealing teeth extending inwards along the cover plate, the sealing teeth are matched with the sealing groove of the junction box, and a labyrinth sealing structure is formed.
The connecting terminal box is characterized in that a plurality of positioning columns are arranged on one side, close to the stator core, of the connecting terminal box, a plurality of positioning holes are formed in the cover plate, the positioning holes are matched with the positioning columns of the connecting terminal box, when the cover plate seals the connecting terminal box, the positioning columns are inserted into the positioning holes, and the positioning columns and the positioning holes are in interference fit.
The positioning column of terminal box and the locating hole interference fit of terminal box make firm the fixing on stator module of terminal box, avoid stator module transportation in-process terminal box to drop.
The plastic package stator is obtained by wrapping the stator assembly by adopting a thermosetting material or a thermoplastic material in an injection molding mode, the main body of the plastic package stator is of a bowl-shaped structure, the junction box and the terminal box of the stator assembly are wrapped by the injection molding material to form a terminal part of the plastic package stator, the butt joint box is exposed out of the terminal part, two side surfaces of the terminal part are provided with noise-proof grooves, and the bottom of the terminal part is provided with a wind-proof part.
The anti-noise grooves are grooves which are arranged on the left side and the right side of the terminal part and are inwards sunken; the windproof part is a protrusion extending outwards along the bottom of the terminal part and protruding out of the terminal part.
The utility model also provides a plastic envelope motor, including plastic envelope stator, rotor subassembly and end cover, the end cover includes end cover main part, terminal part set casing, is provided with the noise control tooth in the inboard of terminal part set casing, when the end cover is installed on the plastic envelope stator, the terminal part set casing is established on the terminal part, and the noise control tooth corresponds and inserts in the noise control groove, forms the noise control structure. The noise-proof structure formed by the noise-proof teeth and the noise-proof groove can reduce the noise of the motor caused by airflow.
The utility model has the advantages as follows:
1. the utility model discloses a set up a terminal box and a terminal box on stator module to mould plastics the terminal part that the parcel formed the plastic envelope stator through thermosetting material or thermoplastic material, inside the labyrinth seal structure that forms through terminal box and terminal box can prevent to mould plastics in-process plastics and scurry into the terminal box, avoid reducing the reliability because of terminal surface adheres to plastics.
2. Through set up the reference column in the terminal box, set up the locating hole in the terminal box, the reference column of terminal box and the locating hole interference fit of terminal box make firm the fixing on stator module of terminal box, avoid stator module transportation in the terminal box to drop.
3. The terminal part of the plastic package stator is provided with the noise-proof groove and the wind-proof part, the end cover is provided with the noise-proof teeth, and the noise-proof teeth of the end cover are matched with the noise-proof groove of the plastic package stator to form a noise-proof structure, so that noise generated by air flow is reduced.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a plastic package motor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a stator assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a first insulating plate and a junction box according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a junction box according to an embodiment of the present invention;
fig. 5 is a schematic view of an installation structure of a connector lug according to an embodiment of the present invention;
fig. 6 is a schematic view of a mounting structure of a terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal box according to an embodiment of the present invention;
fig. 8 is a schematic view of an installation structure of the terminal box and the junction box according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a stator assembly after being molded according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an end cap according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the plastic package motor includes a plastic package stator 1, a rotor assembly 2, and an end cap 3.
Referring to fig. 2 to 8, the stator assembly 10 includes a stator core 11, an insulating frame 12, and an enamel wire 13, the enamel wire 13 is wound around the stator core 11 and leads out a connector 130, the insulating frame 12 includes a first insulating plate 120 and a second insulating plate 121, which are respectively disposed on two end surfaces of the stator core 11, so that the stator core 11 and the enamel wire 13 are insulated from each other.
The first insulating plate 120 is installed on one surface of the stator core 11 facing the end cover 3, and the second insulating plate 121 is installed on one surface of the stator core 11 away from the end cover 3.
A junction box 122 is arranged on the radial outer side of the first insulating plate 120, the junction box 122 is arranged by adopting an upper opening, a plurality of wire grooves 123, a plurality of terminal grooves 124 and a plurality of sealing grooves 125 are arranged in the junction box 122, and the wire grooves 123 are communicated with the terminal grooves 124.
The wire slots 123 are used for accommodating the enameled wire connector lugs 130 led out from the stator windings, the number of the groups of the wire slots 123 can be set according to actual needs, and each enameled wire connector lug 130 led out from the stator winding is respectively embedded into the corresponding wire slot 123 and enters the terminal slot 124.
The terminal grooves 124 are used for accommodating different terminals 14, in the embodiment, the terminals 14 include U, V, W three-phase terminals 141 and a common terminal 142, each terminal 14 is embedded in a different terminal groove 124, and is clamped with the enameled wire connector lug 130 entering into the terminal groove 124.
On the side of the terminal box 122 close to the stator core 11, two positioning posts 126 are provided.
The terminal case 15 includes a cover 151, a docking case 152 located at an upper portion of the cover 151, and a sealing case 153 located at a lower portion of the cover 151.
The cover plate 151 is installed above the junction box 122 to close the upper opening of the junction box 122, the size and shape of the cover plate 151 are matched with those of the junction box 122 to seal the junction box 122, two positioning holes 154 are formed in the cover plate 151, the positioning holes 154 are matched with the positioning posts 126 of the junction box 122, and when the cover plate 151 closes the junction box 122, the two positioning posts 126 are inserted into the two positioning holes 154 respectively. Preferably, the positioning posts 126 and the positioning holes 154 are in an interference fit, so that the terminal box 15 is prevented from being separated from the terminal box 122 if the stator assembly is turned over or shaken during the transportation process.
The docking box 152 is disposed at an upper portion of the cover 151 at a position corresponding to the terminal groove 124 to ensure that the terminal 14 mounted in the terminal groove 124 passes through the cover 151 into the docking box 152, and the docking box 152 is used to dock with a lead interface of the washing machine.
The sealing case 153 is located at the lower portion of the cover plate 151 to seal the cover plate 151 and the terminal block 122, and the sealing case 153 includes a plurality of sealing teeth 155 extending inward (i.e., the side facing the terminal block) of the cover plate 151, and the sealing teeth 155 are fitted into the sealing groove 125 of the terminal block 122, so that when the cover plate 151 is mounted on the terminal block 122 and closed, the sealing teeth 155 are inserted into the sealing groove 125 of the terminal block 122 to form a labyrinth structure, which prevents injection molding material from entering the inside of the terminal block 122 and adhering to the surface of the terminal 14 during injection molding.
As shown in fig. 9-10, the stator assembly 10 is wrapped by a thermosetting material (such as BMC) or a thermoplastic material (such as nylon) through an injection molding processing method to form a plastic package stator, the main body of the plastic package stator 1 after injection molding is similar to a bowl-shaped structure, the rotor assembly 2 is placed into the stator main body from the opening, the bottom of the plastic package stator 1 is a bearing chamber 103 for mounting a bearing, and the metal bearing chamber and the stator assembly can be manufactured separately and molded integrally through injection molding in order to ensure the precision of the bearing chamber. Mounting legs 102 are provided on the outer periphery of the plastic stator 1, and since the strength of the injection molding material is relatively low compared to that of metal, reinforcing ribs are provided on the mounting legs 102.
After the terminal box 122 of the stator assembly 11 and the outside of the terminal box 15 are subjected to injection molding, the terminal part 101 of the plastic-encapsulated stator 1 is formed by being wrapped by an injection molding material, the butt joint box 152 exposes the terminal part 101, two side surfaces of the terminal part 101 are provided with noise preventing grooves 105, and the noise preventing grooves 105 are grooves which are arranged on the left side and the right side of the terminal part 101 and are inwards recessed; a windproof portion 104 is provided at the bottom of the terminal portion 101, and the windproof portion 104 is a protrusion extending outward along the bottom of the terminal portion 101 and protruding from the terminal portion 101.
The end cover 3 comprises an end cover main body 30 and an installation table 31, the end cover 3 is connected with the plastic package stator 1 through the installation table 31, a terminal part fixing shell 32 is arranged on the end cover 3, a noise-proof tooth 33 is arranged on the inner side of the terminal part fixing shell 32, when the end cover 3 is installed on the plastic package stator 1, the terminal part fixing shell 32 is sleeved on the terminal part 101, the noise-proof tooth 33 is correspondingly inserted into a noise-proof groove 105 of the terminal part 101, a noise-proof structure is formed, in the motor operation process, air in an inner cavity of the motor is heated and expanded to flow out of the motor, and the noise-proof structure can reduce noise caused by airflow.
Claims (11)
1. The utility model provides a plastic envelope stator, includes stator module, its characterized in that: the stator assembly is provided with a junction box, a stator lead-out wire and an output terminal are arranged in the junction box, a terminal box is mounted on the junction box, and the terminal box and the junction box form a labyrinth sealing structure.
2. The plastic package stator according to claim 1, wherein: stator module includes stator core, insulating frame, enameled wire, and the wiring head is drawn forth on stator core to the enameled wire coiling, and insulating frame includes first insulation board and second insulation board, sets up respectively on two terminal surfaces of stator core, makes to be insulating between stator core and the enameled wire.
3. The plastic package stator according to claim 2, wherein: the junction box is arranged on the radial outer side of the first insulating plate.
4. The plastic package stator according to claim 1, wherein: the terminal box is provided with an upper opening, a plurality of wire grooves, a plurality of terminal grooves and a plurality of sealing grooves are formed in the terminal box, the wire grooves are used for containing enameled wire connector lugs led out from the stator winding, the terminal grooves are used for containing different terminals, and the wire grooves are communicated with the terminal grooves.
5. The plastic package stator according to claim 4, wherein: each enameled wire connector lug that draws forth from stator winding imbeds respectively in the wire casing that corresponds to in entering into the terminal groove, the terminal includes U, V, W three-phase terminal and public terminal, every terminal imbeds respectively in different terminal grooves, and with enter into the enameled wire connector lug joint in the terminal groove together.
6. The plastic package stator according to claim 4, wherein: the terminal box comprises a cover plate, a butt joint box and a sealing box, wherein the butt joint box is positioned on the upper portion of the cover plate, the sealing box is positioned on the lower portion of the cover plate, the cover plate is arranged above the junction box and used for sealing an upper opening of the junction box, the butt joint box is arranged at the position, corresponding to a terminal groove, of the upper portion of the cover plate so as to ensure that a terminal arranged in the terminal groove penetrates through the cover plate and enters the butt joint box, the sealing box is positioned on the lower portion of the cover plate and used for sealing the cover plate and the junction box, the sealing box comprises a plurality of sealing teeth extending inwards along the cover plate, the sealing teeth are matched with the sealing groove of the junction box, and a labyrinth sealing structure is formed.
7. The plastic package stator according to claim 6, wherein: the connecting terminal box is characterized in that a plurality of positioning columns are arranged on one side, close to the stator core, of the connecting terminal box, a plurality of positioning holes are formed in the cover plate, the positioning holes are matched with the positioning columns of the connecting terminal box, when the cover plate seals the connecting terminal box, the positioning columns are inserted into the two positioning holes, and the positioning columns and the positioning holes are in interference fit.
8. The plastic package stator according to claim 6, wherein: the plastic package stator is obtained by wrapping the stator assembly by adopting a thermosetting material or a thermoplastic material in an injection molding mode, the main body of the plastic package stator is of a bowl-shaped structure, the junction box and the terminal box of the stator assembly are wrapped by the injection molding material to form a terminal part of the plastic package stator, the butt joint box is exposed out of the terminal part, two side surfaces of the terminal part are provided with noise-proof grooves, and the bottom of the terminal part is provided with a wind-proof part.
9. The plastic package stator according to claim 8, wherein: the anti-noise grooves are grooves which are arranged on the left side and the right side of the terminal part and are inwards sunken; the windproof part is a protrusion extending outwards along the bottom of the terminal part and protruding out of the terminal part.
10. The utility model provides a plastic envelope motor, includes plastic envelope stator, rotor subassembly and end cover, its characterized in that: the plastic package stator is the plastic package stator as claimed in any one of claims 1-9.
11. The utility model provides a plastic envelope motor, includes plastic envelope stator, rotor subassembly and end cover, its characterized in that: the plastic package stator is as defined in any one of claims 8 to 9, the end cap comprises an end cap main body and a terminal part fixing shell, the inner side of the terminal part fixing shell is provided with a noise-proof tooth, when the end cap is mounted on the plastic package stator, the terminal part fixing shell is sleeved on the terminal part, and the noise-proof tooth is correspondingly inserted into the noise-proof groove to form a noise-proof structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018187.4U CN217445133U (en) | 2022-04-28 | 2022-04-28 | Plastic package stator and plastic package motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018187.4U CN217445133U (en) | 2022-04-28 | 2022-04-28 | Plastic package stator and plastic package motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445133U true CN217445133U (en) | 2022-09-16 |
Family
ID=83219827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221018187.4U Active CN217445133U (en) | 2022-04-28 | 2022-04-28 | Plastic package stator and plastic package motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445133U (en) |
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2022
- 2022-04-28 CN CN202221018187.4U patent/CN217445133U/en active Active
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