CN217468898U - Charging terminal assembly and die thereof - Google Patents
Charging terminal assembly and die thereof Download PDFInfo
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- CN217468898U CN217468898U CN202221714187.8U CN202221714187U CN217468898U CN 217468898 U CN217468898 U CN 217468898U CN 202221714187 U CN202221714187 U CN 202221714187U CN 217468898 U CN217468898 U CN 217468898U
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- terminal
- dustcoat
- connecting plate
- cover
- limiting
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Abstract
The utility model relates to an electric automobile charge interface field especially relates to a charging terminal subassembly and mould thereof, including the terminal and with the terminal dustcoat that the integrative injection moulding of terminal is connected, wherein, the terminal dustcoat includes that dustcoat body and integrated into one piece connect in the inboard connecting plate of dustcoat body, the terminal dustcoat passes through the connecting plate and is connected with the integrative injection moulding in the terminal outside, the connecting plate extends along the length direction of dustcoat body, terminal periphery evenly distributed is followed to a plurality of connecting plates, constitute the inboard louvre of terminal dustcoat that runs through between the lateral wall of adjacent connecting plate and terminal and the inside wall of terminal dustcoat. In this application implementation, the terminal is connected with the integrative injection moulding of terminal dustcoat, is promptly through injection moulding's the terminal dustcoat that obtains in the terminal outside for the position between terminal and the terminal dustcoat is accurate, in order to guarantee the effect of charging.
Description
Technical Field
The utility model relates to an electric automobile charges the interface field, especially relates to a charging terminal subassembly and mould thereof.
Background
Along with the increasing popularization of electric automobiles, the charging interface standard of the electric automobiles is also continuously perfected. In the charging interface of the electric automobile, in order to ensure the insulativity of the gun head, a terminal outer cover is arranged outside the terminal.
The conventional terminal housing is generally formed by injection molding with a lance head, and then the terminal is inserted into the terminal housing for mounting. In this manner, due to shrinkage problems that may occur in injection molding, errors may occur in the dimensions of the terminal and the terminal housing, and the accuracy of the position of the terminal inserted into the terminal housing is difficult to control, which may result in poor positional accuracy after the terminal is mounted, thereby affecting the charging effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a charging terminal subassembly and mould thereof.
The utility model discloses a realize through following technical scheme:
a charging terminal assembly includes a terminal and a terminal cover integrally injection-molded with the terminal, wherein,
the terminal housing comprises a housing body and an integrally formed connecting plate connected to the inner side of the housing body, the terminal housing is connected with the terminal through the connecting plate in an integral injection molding mode, the connecting plate extends along the length direction of the housing body, the connecting plate is multiple in length direction, the periphery of the terminal is uniformly distributed, and adjacent heat dissipation holes penetrating through the inner side of the terminal housing are formed between the connecting plate and the outer side wall of the terminal and between the connecting plate and the inner side wall of the terminal housing.
Optionally, the outer cover body is integrally connected with at least one annular limiting groove at the outer side, and the annular limiting groove is used for clamping the sealing ring.
Optionally, the terminal includes a contact piece, a terminal body integrally connected to an outer side of the contact piece by injection molding, and a fixing portion integrally connected to the terminal body, where the fixing portion protrudes from the terminal housing.
Optionally, the edge of the fixing portion is chamfered.
Optionally, the terminal housing is a terminal housing of an insulating material.
A mold for preparing the above charging terminal assembly, comprising: a first inner mold, a second inner mold, and a mold cavity, wherein,
the first inner die comprises a first limiting part, a first forming part integrally connected to the rear side of the first limiting part, a second forming part integrally connected to the rear side of the first forming part, and a supporting part integrally connected to the rear side of the second forming part;
the first limiting part is clamped on the inner side of the terminal to fix the terminal;
the first molding part and the second molding part are used for molding the tail end of the terminal housing;
the second inner die comprises a second limiting part and a third shaping part which is integrally connected to the rear side of the second limiting part;
the second limiting part is used for clamping the terminal at the inner side of the second limiting part and fixing the terminal;
the third shaping part comprises a plurality of shaping strips for shaping a connecting plate of the terminal outer cover;
the die cavity is used for molding the outer side of the terminal housing.
Optionally, the first limiting portion, the first forming portion and the second forming portion are all columnar, the diameter of the first forming portion is larger than that of the first limiting portion, and the diameter of the second forming portion is larger than that of the first forming portion.
Optionally, a joint of the first limiting portion and the first forming portion and a joint of the first forming portion and the second forming portion are both in a truncated cone shape.
Compared with the prior art, the utility model discloses a scheme has following advantage:
in this application implementation, the terminal is connected with the integrative injection moulding of terminal dustcoat, is promptly through injection moulding's the terminal dustcoat that obtains in the terminal outside for the position between terminal and the terminal dustcoat is accurate, in order to guarantee the effect of charging.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of the overall structure of a lance tip according to the prior art.
Figure 2 is a schematic cross-sectional view of a lance tip according to the prior art taken along line A-A.
Fig. 3 is an exploded view of the lance head and the terminal in the prior art.
Fig. 4 is a schematic structural diagram of a charging terminal assembly according to an embodiment of the present disclosure.
Fig. 5 is a schematic cross-sectional structure diagram of a charging terminal assembly according to an embodiment of the present disclosure.
Fig. 6 is a schematic side view of a charging terminal assembly according to an embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of a terminal housing according to an embodiment of the present disclosure.
Fig. 8 is an exploded view of the gun head and the charging terminal assembly according to the embodiment of the present disclosure.
Fig. 9 is a schematic view of the overall structure of a lance tip according to the practice of the present application.
Fig. 10 is a schematic sectional view of a lance tip according to the practice of the present application.
Fig. 11 is an exploded view of a mold provided in an embodiment of the present application.
Fig. 12 is a schematic structural diagram of a terminal fixed to a mold according to an embodiment of the present application.
Fig. 13 is a schematic sectional view at B-B.
Fig. 14 is an enlarged view of a part of the structure at C.
In the figure: 1. the terminal comprises a gun head, 2 terminals, 3 terminal outer covers, 4 sealing rings, 5 terminals, 6 terminal outer covers, 7 charging terminal assemblies, 8 heat dissipation holes, 9 annular limiting grooves, 10 contact pieces, 11 fixing portions, 12 gun heads, 13 sealing rings, 14 fixing grooves, 15 first inner dies, 16 second inner dies, 17 first limiting portions, 18 first forming portions, 19 second forming portions, 20 supporting portions, 21 second limiting portions, 22 third forming portions and 23 annular inner bosses.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and the best embodiment.
A schematic view of the structure of a lance tip according to the prior art is shown in figures 1 to 3. Fig. 1 is a schematic overall structure diagram of a lance head in the prior art, fig. 2 is a schematic sectional structure diagram of the lance head in the prior art at a position a-a, and fig. 3 is an exploded view of the lance head and a terminal in the prior art.
As shown in fig. 1 to 3, in the prior art, a terminal housing 3 is integrally formed with a tip 1, and a terminal 2 is inserted into the terminal housing. As shown in fig. 2, in order to ensure the sealing performance inside the terminal after the terminal is inserted into the terminal housing, a sealing groove is required to be arranged at the rear end of the terminal, and a sealing ring 4 is clamped in the sealing groove and is in contact with the inner wall of the terminal housing to realize sealing.
Fig. 4 is a schematic structural diagram of a charging terminal assembly provided in the present application, fig. 5 is a schematic structural diagram of a cross section of the charging terminal assembly provided in the present application, and fig. 6 is a schematic structural diagram of a side view of the charging terminal assembly provided in the present application.
As shown in the drawing, the charging terminal assembly 7 includes a terminal 5 and a terminal cover 6 connected to the terminal by injection molding integrally.
In this application implementation, the terminal is connected with the integrative injection moulding of terminal dustcoat, is promptly through injection moulding's the terminal dustcoat that obtains in the terminal outside for the position between terminal and the terminal dustcoat is accurate, in order to guarantee the effect of charging.
The terminal housing and the terminals in the embodiment of the present application are fixedly connected as a charging terminal assembly, and then the charging terminal assembly may be installed into the lance tip 12.
Fig. 7 shows a schematic structural diagram of a terminal housing according to an embodiment of the present disclosure.
The terminal cover comprises a cover body and an integrated connecting plate 7 connected to the inner side of the cover body, the terminal cover is connected to the outer side of the terminal through the connecting plate in an integrated injection molding mode, the connecting plate extends along the length direction of the cover body and is multiple in length direction, the connecting plate is evenly distributed on the periphery of the terminal, and heat dissipation holes 8 penetrating through the inner side of the terminal cover are formed between the connecting plate and the outer side wall of the terminal and the inner side wall of the terminal cover.
Through set up the louvre structure in the inboard of terminal dustcoat for the heat that the terminal produced in the use can effectively be effluvium, avoids appearing the condition of high temperature.
Fig. 8 is an exploded view of a tip and a charging terminal assembly according to an embodiment of the present disclosure.
Fig. 9 is a schematic view of the overall structure of a lance tip according to the practice of the present application.
Fig. 10 is a schematic sectional view of a lance tip according to the practice of the present application.
In the embodiment of the present application, the housing body is integrally connected with at least one annular limiting groove 9 at the outer side, and the annular limiting groove is used for clamping the sealing ring 13.
Because the injection molding is carried out on the outer side of the terminal, the annular limiting groove is not arranged on the outer side of the terminal but arranged on the outer side of the terminal outer cover, and the sealing ring is clamped in the annular limiting groove and is in contact with the injection molding structure of the lamp holder, so that the sealing of the terminal is realized.
Alternatively, the terminal includes a contact piece 10, a terminal body integrally connected to an outer side of the contact piece by injection molding, and a fixing portion 11 integrally connected to the terminal body, where the fixing portion protrudes from the terminal housing.
The fixing portion may have a cylindrical shape for mounting the charging terminal assembly to the gun head, and as an example, the gun head may be provided with a fixing groove 14 at a corresponding position, and the fixing portion may be inserted into the fixing groove, thereby implementing the mounting of the charging terminal assembly.
Optionally, the edge of the fixing portion is chamfered to facilitate the insertion of the fixing portion into the fixing groove.
Optionally, the terminal housing is made of an insulating material, so that the insulation of the charging terminal assembly is ensured.
The embodiment of the application also provides a mold for preparing the charging terminal assembly. Fig. 11-14 illustrate schematic views of molds for preparing a charging terminal assembly provided by embodiments of the present application.
The mold comprises: a first inner mould 15, a second inner mould 16 and a mould cavity (not shown), wherein,
an exploded view of a mold provided by an embodiment of the present application is shown in fig. 11.
Fig. 12 shows a schematic structural diagram of the terminal fixed to the mold according to the embodiment of the present application.
The schematic cross-sectional structure at B-B is shown in fig. 13.
An enlarged view of a portion of the structure at C is shown in fig. 14.
The first inner mold comprises a first limiting part 17, a first forming part 18 integrally connected to the rear side of the first limiting part, a second forming part 19 integrally connected to the rear side of the first forming part, and a supporting part 20 integrally connected to the rear side of the second forming part;
the first limiting part is clamped on the inner side of the terminal to fix the terminal;
the first molding part and the second molding part are used for molding the tail end of the terminal housing;
the second inner die comprises a second limiting part 21 and a third shaping part 22 integrally connected to the rear side of the second limiting part;
the second limiting part is used for clamping the terminal at the inner side of the second limiting part and fixing the terminal;
the third shaping part comprises a plurality of shaping strips for shaping a connecting plate of the terminal outer cover;
the die cavity is used for molding the outer side of the terminal housing.
Optionally, the first limiting portion, the first forming portion and the second forming portion are all columnar, the diameter of the first forming portion is larger than that of the first limiting portion, and the diameter of the second forming portion is larger than that of the first forming portion.
Specifically, the first limiting portion extends into the hole of the terminal to fix the terminal. The diameter of the first forming part is larger than that of the first limiting part, so that the first limiting part can stretch into a proper position in the terminal, and then the terminal is blocked by the first forming part. The diameter of the first forming part is smaller than that of the terminal, so that the terminal outer cover forms an annular inner boss 23 at the rear end of the terminal, the annular inner boss surrounds and blocks the tail end of the terminal, and the terminal can be stably fixed. The second molding part is used for molding the tail end of the terminal housing through the side surface close to the first molding part.
The fixed part of terminal is blocked through spacing portion of second to mould in the second, is fixed in the terminal with second shaping portion, third shaping portion is the same as also blocking in the outside of terminal, and many shaping strips of third shaping portion for the shaping to the connecting plate of terminal dustcoat, make terminal dustcoat inboard can follow formation louvre.
The inner side of the mold cavity is used for molding the outer side of the terminal outer cover, and the inner side of the mold cavity comprises a clamping groove molding part (not shown in the figure) used for limiting the molding of the clamping groove.
After the terminal is fixed by the first limiting part of the first inner die, the second inner die can be sleeved outside the terminal, then the die cavity is closed, the terminal outer cover is injected into the die cavity, and the charging terminal assembly can be obtained.
The supporting part of the first inner mold can be connected with a demolding mechanism and used for driving the charging terminal assembly to move out of the mold cavity and demolding.
Optionally, a joint of the first limiting portion and the first forming portion and a joint of the first forming portion and the second forming portion are both in a truncated cone shape.
The joint of the first limiting part and the first forming part can be a small circumferential frustum, and the shape of the frustum can be matched with that of the tail end of the terminal, so that the terminal is guaranteed to be stably fixed.
The joint of the first forming portion and the second forming portion may be a larger circumferential frustum for forming a flared opening at the end of the terminal housing, that is, the aperture of the terminal housing at a position close to the aperture gradually increases towards the end, so as to facilitate the insertion of the plug.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A charging terminal assembly comprising a terminal and a terminal cover integrally injection-molded with the terminal, wherein,
the terminal cover comprises a cover body and an integrated connecting plate connected to the inner side of the cover body, the terminal cover is connected to the outer side of the terminal through the connecting plate and is integrally formed and connected to the outer side of the terminal, the connecting plate extends along the length direction of the cover body and is multiple in length direction, the connecting plate is evenly distributed on the periphery of the terminal, and heat dissipation holes penetrating through the inner side of the terminal cover are formed between the connecting plate and the outer side wall of the terminal and the inner side wall of the terminal cover.
2. The charging terminal assembly according to claim 1, wherein the housing body is integrally formed with at least one annular retaining groove at an outer side thereof, the annular retaining groove being configured to retain the sealing ring.
3. The charging terminal assembly according to claim 1 or 2, wherein the terminal includes a contact piece, a terminal body integrally injection-molded to an outer side of the contact piece, and a fixing portion integrally connected to the terminal body, and protruding from the terminal housing at the fixing portion.
4. The charging terminal assembly according to claim 3, wherein an edge of the fixing portion is chamfered.
5. The charging terminal assembly according to claim 4, wherein the terminal cover is a terminal cover of an insulating material.
6. A mold for preparing the charging terminal assembly according to any one of claims 1 to 5, comprising: a first inner mold, a second inner mold, and a mold cavity, wherein,
the first inner die comprises a first limiting part, a first forming part integrally connected to the rear side of the first limiting part, a second forming part integrally connected to the rear side of the first forming part, and a supporting part integrally connected to the rear side of the second forming part;
the first limiting part is clamped on the inner side of the terminal to fix the terminal;
the first molding part and the second molding part are used for molding the tail end of the terminal housing;
the second inner die comprises a second limiting part and a third shaping part which is integrally connected to the rear side of the second limiting part;
the second limiting part is used for clamping the terminal at the inner side of the second limiting part and fixing the terminal;
the third shaping part comprises a plurality of shaping strips for shaping a connecting plate of the terminal outer cover;
the die cavity is used for molding the outer side of the terminal housing.
7. The mold according to claim 6, wherein the first limiting portion, the first forming portion and the second forming portion are all columnar, the diameter of the first forming portion is larger than that of the first limiting portion, and the diameter of the second forming portion is larger than that of the first forming portion.
8. The mold according to claim 7, wherein a joint between the first limiting portion and the first molding portion and a joint between the first molding portion and the second molding portion are both in a truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714187.8U CN217468898U (en) | 2022-07-05 | 2022-07-05 | Charging terminal assembly and die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714187.8U CN217468898U (en) | 2022-07-05 | 2022-07-05 | Charging terminal assembly and die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468898U true CN217468898U (en) | 2022-09-20 |
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ID=83252477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221714187.8U Active CN217468898U (en) | 2022-07-05 | 2022-07-05 | Charging terminal assembly and die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468898U (en) |
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2022
- 2022-07-05 CN CN202221714187.8U patent/CN217468898U/en active Active
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