CN216773617U - Power plug - Google Patents
Power plug Download PDFInfo
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- CN216773617U CN216773617U CN202123177195.1U CN202123177195U CN216773617U CN 216773617 U CN216773617 U CN 216773617U CN 202123177195 U CN202123177195 U CN 202123177195U CN 216773617 U CN216773617 U CN 216773617U
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- insulating
- power plug
- mounting substrate
- positioning
- injection
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Abstract
The utility model discloses a power plug, which comprises an insulating plug body and metal pins, wherein the insulating plug body comprises an insulating mounting substrate, and the metal pins are fixedly mounted on the insulating mounting substrate. The power plug has the advantages that the structure is simple, the power plug can be formed by injection molding at one time, the production efficiency is effectively improved, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of plugs, in particular to a power plug.
Background
A power plug is a device for connecting an electric appliance or the like to a power source. The conventional power plug generally comprises an insulating plug body, a lead and metal pins, wherein the rear end of each metal pin is fixedly arranged at the front end of the insulating plug body, one end of the lead extends into the insulating plug body to be electrically connected with the rear end of the metal pin, and the metal pins are directly molded and fixed in the insulating plug body made of plastic materials. At present, aiming at the manufacture of the power plug, generally, an insulating substrate is adopted to install a metal pin, the metal pin is used as a base body, then the metal pin is manufactured by adopting glue injection molding for an injection molding machine, the glue is extruded by the injection molding machine at a time under certain temperature and pressure, the outside of the plug is coated with various shapes and thicknesses to form an external insulating layer of the plug, after the glue layer is cooled, a corresponding plug product is obtained after sizing, the plug is usually cooled slowly due to the fact that the thickness of the insulating plug body is large in the manufacturing process, so that the surface of the plug is retracted obviously after cooling is finished due to the fact that too many glue layers are filled at one time, pits appear on the surface of the plug, and then the qualified product with smooth surface can be obtained only by secondary injection molding, so that the overall manufacturing efficiency is low, and the manufacturing cost is correspondingly high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the power plug which is simple in structure and can be qualified through one-time injection molding, thereby effectively improving the production efficiency and reducing the production cost.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a power plug comprises an insulating plug body and metal pins, wherein the insulating plug body comprises an insulating installation substrate used for installing the metal pins, the metal pins are fixedly installed on the insulating installation substrate, an injection molding support cover is arranged on the insulating installation substrate, the injection molding support cover and the metal pins are matched to form a hollow base body used for injection molding of the insulating plug body, and an injection molding hole used for enabling injection molding plastic to enter the base body and filling the inner cavity of the base body when injection molding is carried out is formed in the injection molding support cover.
The injection molding support cover is provided with an installation arm in a downward extending mode, a positioning hook is arranged on the inner end face of the lower portion of the installation arm in a protruding mode, and the positioning hook is arranged on the lower end face of the insulation installation base plate. The injection molding support cover is stably installed on the insulating installation substrate through the structure, the structure is simple, and the installation and the disassembly are convenient.
The lower end surface of the insulating mounting substrate is provided with a groove which is sunken upwards and has an opening at the outer side part corresponding to the hooking position of the positioning hook, and the positioning hook is arranged on the inner end surface at the upper part of the groove. The stable hooking installation of the positioning hook is realized.
The insulating mounting substrate is provided with at least two grooves. The injection molding support cover can be stably installed on the insulating installation substrate.
The insulating mounting substrate is provided with a through positioning hole, the injection molding support cover is provided with a positioning column which is matched with the positioning hole and protrudes downwards at the position corresponding to the positioning hole, and the positioning column is inserted into the corresponding positioning hole. The fixed mounting position of the injection molding support cover on the insulating mounting substrate is realized through the matching of the positioning columns and the positioning holes, the offset of the position of the injection molding support cover is avoided during injection molding, and therefore the quality of a product is effectively ensured.
The injection molding support cover comprises a main support plate, a support wall is arranged on the side of the main support plate, and the main support plate and the support wall are respectively provided with the glue injection port. The sizing material can enter and fill the inner cavity of the base body more quickly.
The vertical distance between the upper end surface of the main supporting plate and the upper end surface of the insulation plug body after injection molding is 2-2.5 mm. Within the range of the vertical distance, the product is not easy to obviously retract or collapse after one-time injection molding, and one-time molding is ensured.
The support wall on be provided with the mistake proofing breach, insulating mounting substrate correspond the position of mistake proofing breach on be provided with the mistake proofing installation piece, the mistake proofing installation piece set up and be in the mistake proofing breach. Through the cooperation of mistake proofing breach and mistake proofing installation piece, can form the direction to the installation direction of the supporting shroud of moulding plastics, improve assembly efficiency.
The injection molding support cover is made of an insulating material. Insulation stability is ensured.
Compared with the prior art, the utility model has the advantages that: the injection molding support cover is covered on the insulating mounting substrate, the injection molding support cover and the insulating mounting plate provided with the metal pins form a base body, the base body is subjected to injection molding through an injection molding machine to form the power plug, when the glue layer is cooled, the injection molding support cover forms a support for the glue layer, so that the phenomenon that the power plug is obviously retracted or collapsed in the cooling process is effectively avoided, the power plug can be subjected to one-step injection molding, the structure is simple, the production efficiency is effectively improved, and the production cost is reduced; the filling of external rubber materials into the inner cavity of the base body is realized through the rubber injection port arranged on the injection molding support cover, and the whole insulation plug body is ensured to be in a solid state after the manufacture is finished.
Drawings
Fig. 1 is a schematic overall three-dimensional structure of a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of a substrate according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a mating connection between an insulative mounting substrate and an injection-molded support housing according to an embodiment of the utility model;
FIG. 4 is a schematic structural view of an injection molded support cage according to one embodiment of the present invention;
FIG. 5 is a schematic view of an insulating mounting substrate according to an embodiment of the present invention;
FIG. 6 is a schematic overall perspective view of a second embodiment of the present invention;
FIG. 7 is a schematic perspective view of a substrate according to a second embodiment of the present invention;
FIG. 8 is a schematic structural view of the connection between the insulating mounting substrate and the injection molding support cover according to the second embodiment of the present invention;
FIG. 9 is a schematic structural view of an injection molded support cage according to a second embodiment of the present invention;
fig. 10 is a schematic structural diagram of an insulating mounting substrate according to a second embodiment of the utility model.
Detailed Description
The utility model is described in further detail below with reference to the following examples of the drawings.
The first embodiment is as follows: as shown in fig. 1 to 5, a power plug, including insulating plug body 1 and metal participate in 2, insulating plug body 1 is including the insulating mounting substrate 3 that is used for installing metal to participate in 2, metal participates in 2 fixed mounting on insulating mounting substrate 3, insulating mounting substrate 3 upper shield is equipped with the support cover 4 of moulding plastics, the support cover 4 of moulding plastics forms a hollow base member a that is used for moulding plastics and forms insulating plug body 1 with the insulating mounting substrate 3 cooperation that installs metal to participate in 2, be provided with on the support cover 4 of moulding plastics and be used for making the injecting plastics glue enter into base member a when moulding plastics and pack the injecting glue mouth 5 of inner chamber infill of base member a.
In this embodiment, the injection-molded support cover 4 is provided with a mounting arm 41 extending downward, the lower inner end surface of the mounting arm 41 is provided with a positioning hook 42 in a protruding manner, and the positioning hook 42 is hooked on the lower end surface of the insulating mounting substrate 3. The injection molding support cover is stably installed on the insulating installation substrate through the structure, the structure is simple, and the installation and the disassembly are convenient.
In this embodiment, the lower end surface of the insulating mounting substrate 3 is provided with a groove 31 which is recessed upward and has an outer side opening corresponding to the hooking position of the positioning hook 42, and the positioning hook 42 is hooked on the upper inner end surface of the groove 31 at the corresponding position. The stable hooking and installation of the positioning hook 31 is realized.
In this particular embodiment, at least two recesses 31 are provided in the insulative mounting substrate 3. The injection-molded support cover 4 can be stably mounted on the insulating mounting substrate 3. The number of the grooves 31 is two, the two grooves 31 are arranged oppositely, the number of the grooves 31 is 3, three-point positioning is formed by the 3 grooves 31, the number of the mounting arms 41 is matched with the number of the grooves 31, and stable mounting of the injection molding support cover 4 is achieved.
In this embodiment, the insulating mounting substrate 3 is provided with a positioning hole 34 penetrating vertically, a positioning post 43 matching with the positioning hole 34 is provided on the injection support cover 4 in a downward protruding manner at a position corresponding to the positioning hole 34, and the positioning post 43 is inserted into the corresponding positioning hole 34. The fixing of the mounting position of the injection molding support cover 4 on the insulating mounting substrate 3 is realized through the matching of the positioning column 43 and the positioning hole 34, so that the offset of the position of the injection molding support cover 4 is avoided during injection molding, and the quality of a product is effectively ensured.
In this embodiment, the injection molding support cover 4 comprises a main support plate 401, a support wall 402 is provided at the side of the main support plate 401, and the main support plate 401 and the support wall 402 are respectively provided with a glue injection opening 5. The sizing material can enter and fill the inner cavity of the matrix A more quickly.
In this embodiment, the vertical distance between the upper end surface of the main supporting plate 401 and the upper end surface of the injection molded insulating plug body 1 is 2-2.5 mm. Within the range of the vertical distance, the product is not easy to obviously retract or collapse after one-time injection molding, and one-time molding is ensured.
In this particular embodiment, the injection molded support cage 4 is made of an insulating material. Insulation stability is ensured.
Example two: as shown in fig. 6 to 10, the other parts are the same as the first embodiment, except that the supporting wall 402 is provided with the error-proof notch 44, the insulating mounting substrate 3 is provided with the error-proof mounting block 35 at a position corresponding to the error-proof notch 44, and the error-proof mounting block 35 is disposed in the error-proof notch 44. Through the cooperation of mistake proofing breach 44 and mistake proofing installation piece 35, can form the direction to the installation direction of the support housing 4 of moulding plastics, improve assembly efficiency.
Claims (9)
1. A power plug comprises an insulating plug body and metal pins, wherein the insulating plug body comprises an insulating mounting substrate for mounting the metal pins, and the metal pins are fixedly mounted on the insulating mounting substrate.
2. The power plug of claim 1, wherein the injection-molded support housing has a mounting arm extending downward, and a positioning hook is protruded from an inner end surface of a lower portion of the mounting arm, and the positioning hook is disposed on a lower end surface of the insulating mounting substrate.
3. The power plug of claim 2, wherein the lower end of the insulating mounting substrate is provided with a recess recessed upward and having an opening at an outer side portion thereof at a position corresponding to the hooking position of the positioning hook, and the positioning hook is provided at an upper inner end surface of the recess at the corresponding position.
4. A power plug according to claim 3 wherein said dielectric mounting substrate is provided with at least two of said recesses.
5. A power plug according to claim 1 or 2, wherein the insulating mounting substrate is provided with a positioning hole penetrating vertically, a positioning post protruding downwards is provided at a position corresponding to the positioning hole on the injection molding support cover, the positioning post is inserted into the corresponding positioning hole.
6. A power plug according to claim 1, wherein the injection-molded support cover comprises a main support plate, the side of the main support plate is provided with a support wall, and the main support plate and the support wall are respectively provided with the glue injection hole.
7. A power plug according to claim 6, wherein the vertical distance between the upper end surface of the main supporting plate and the upper end surface of the injection molded insulating plug body is 2-2.5 mm.
8. The power plug as claimed in claim 6, wherein said support wall is formed with a mistake-proof notch, and said insulative mounting substrate is formed with a mistake-proof mounting block at a position corresponding to said mistake-proof notch, said mistake-proof mounting block being disposed in said mistake-proof notch.
9. A power plug as claimed in claim 1 wherein said injection molded support housing is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123177195.1U CN216773617U (en) | 2021-12-16 | 2021-12-16 | Power plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123177195.1U CN216773617U (en) | 2021-12-16 | 2021-12-16 | Power plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216773617U true CN216773617U (en) | 2022-06-17 |
Family
ID=81966810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123177195.1U Active CN216773617U (en) | 2021-12-16 | 2021-12-16 | Power plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216773617U (en) |
-
2021
- 2021-12-16 CN CN202123177195.1U patent/CN216773617U/en active Active
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