CN210668767U

CN210668767U - Plum blossom tail insert inner frame

Info

Publication number: CN210668767U
Application number: CN201922048898.0U
Authority: CN
Inventors: 郭彬权
Original assignee: Dongguan Zhenghao Electrical Appliance Co ltd
Current assignee: Dongguan Zhenghao Electrical Appliance Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-02
Anticipated expiration: 2029-11-22

Abstract

The utility model belongs to the technical field of power cord tail plug, in particular to a plum blossom tail plug inner frame, which comprises a shell and three metal terminals, wherein the shell is provided with a left end surface and a right end surface which are oppositely arranged, the shell is provided with an installation cavity matched with each metal terminal, the installation cavity penetrates through the left end surface and the right end surface of the shell, each metal terminal is respectively installed in the installation cavity, each metal terminal comprises an electric connection end, a middle end and a wiring end, the middle end is connected between the electric connection end and the wiring end, the free end of the electric connection end is also provided with a guide end, the diameter of the guide end is gradually increased from the back to the direction of the electric connection end, namely, the inner wall of the guide end is in an outward inclined state, one end of an electronic pin is slidably inserted into the electric connection end along the inner wall of the guide end, and the opening diameter of the electric connection end is increased by the guide, avoid participating in and produce the copper fillings with the free end butt of electric joint end, improved the yields of flower tail insert inner tower.

Description

Plum blossom tail insert inner frame

Technical Field

The utility model belongs to the technical field of the power cord tail is inserted, especially, relate to an inner tower is inserted to plum blossom tail.

Background

A power plug refers to a device that connects a device such as an electrical appliance to a power source. The power supply socket and the plug are different in appearance, grade, size and kind according to the region of the country. Each region has its own established standards. The power plug is called a power line plug. Is used in various fields, and various regions. The power plug can be used at voltages of 250V, 125V and 36V according to different purposes of the power plug, and can be used at 16A, 13A, 10A, 5A and 2.5A according to different currents. The frequency is typically 50/60 Hz.

In the prior art, the types of power line tail plugs are various, wherein a traditional internal frame mechanism of a three-plug tail plug of a power line consists of three terminals and a shell, and the terminals are inserted into holes of the shell; the terminals comprise a connection end, a middle end and a connection end, the connection end is generally composed of a plurality of electric tabs for facilitating the insertion of the terminals into the holes of the shell, and the diameter of the connection end is gradually reduced along the direction back to the middle end, so that the pins are not easy to mount during assembly, and the yield is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inner tower is inserted to plum blossom tail aims at solving participating in difficult technical problem of installing in the inner tower is inserted to the plum blossom tail among the prior art.

In order to realize the above-mentioned purpose, the embodiment of the utility model provides a pair of plum blossom tail insert inner tower, including casing and three metal terminal, the casing has relative left end face and the right-hand member face that sets up, the casing be provided with each metal terminal assorted installation cavity, the installation cavity runs through the left end face and the right-hand member face of casing, each metal terminal install respectively in the installation cavity, each metal terminal includes electric joint end, middle-end and wiring end, the middle-end connect in between electric joint end and the wiring end, the free end of electric joint end still is provided with the direction end, the diameter of direction end from dorsad the electricity increases gradually the end direction that connects.

Optionally, a position where the middle end and the wiring end are connected is provided with a blocking piece for preventing the punching glue from entering the inside of the metal terminal during injection molding.

Optionally, the outer side wall of the wiring end is provided with a limiting bump for limiting the metal terminal, and the limiting bump is abutted against the left end face of the housing.

Optionally, the middle end is provided with a through hole for preventing the metal terminal from sliding in the mounting cavity.

Optionally, the electrical terminals are assembled from three electrical tabs.

Optionally, the cross section of the terminal is in a semicircular structure, and wire clamping parts extend from two sides of the terminal in the semicircular structure.

Optionally, the casing includes a quincunx plug bush and an annular end, the annular end is arranged on the left end face of the quincunx plug bush, and the quincunx plug bush is formed by splicing three cylindrical rubber sleeves.

Optionally, the left end face of the annular end head is provided with a limiting end.

Optionally, a fixing groove is formed in the side face of the annular end head, a through hole is formed in the left end face of the limiting end, and the through hole is communicated with the fixing groove.

Optionally, the inner wall of each mounting cavity is provided with a boss for limiting the guide end.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the interior frame is inserted to plum blossom tail have one of following technological effect at least: when the plug-in unit is used, the plug-in pins penetrate through the guide ends and then are inserted into the electric connection ends, then the plug-in pins are subjected to injection molding and glue punching to fix the plug-in pins and the metal terminals, the diameter of the guide ends gradually increases from the back to the direction of the electric connection ends, namely the inner walls of the guide ends are in an outward inclined state, so that one ends of the plug-in pins slide along the inner walls of the guide ends and are inserted into the electric connection ends, the arranged guide ends increase the opening diameter of the electric connection ends, the plug-in unit is easier to install, copper scraps caused by the fact that the plug-in pins abut against the free ends of the electric connection ends when the plug-in pins are installed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of the plum blossom end socket inner frame provided by the embodiment of the present invention.

Fig. 2 is a sectional view of the quincunx tail insert inner frame provided in fig. 1.

Fig. 3 is a schematic structural view of a housing in the quincunx tail insert inner frame provided in fig. 1.

Fig. 4 is another structural schematic diagram of the shell in the quincunx tail insert inner frame provided in fig. 1.

Fig. 5 is a schematic structural view of a metal terminal in the quincunx tail insert inner frame provided in fig. 1.

Wherein, in the figures, the respective reference numerals:

10-shell 11-mounting cavity 12-plum blossom type plug bush

13-annular end head 14-limiting end 15-fixing groove

16-second through hole 17-boss 20-metal terminal

21-electrical terminal 22-intermediate terminal 23-terminal

24-guide end 25-stop piece 26-projection

27 — first via.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the utility model, as shown in fig. 1-2, provide an interior frame is inserted to plum blossom tail, including casing 10 and three metal terminal 20, casing 10 has relative left end face and the right-hand member face that sets up, casing 10 be provided with each metal terminal 20 assorted installation cavity 11, installation cavity 11 runs through the left end face and the right-hand member face of casing 10, each metal terminal 20 install respectively in installation cavity 11, each metal terminal 20 includes electrical connection 21, middle-end 22 and wiring end 23, middle-end 22 connect in between electrical connection 21 and wiring end 23, the free end of electrical connection 21 still is provided with leading end 24, the diameter of leading end 24 is from dorsad electrical connection 21 direction increases gradually. Specifically, when the plug-in connector is used, the plug pins penetrate through the guide end 24 and then are inserted into the electric connection end 21, then the plug pins are subjected to injection molding and glue punching to fix the plug pins and the metal terminal 20, the diameter of the guide end 24 is gradually increased from the direction back to the electric connection end 21, namely the inner wall of the guide end 24 is in an outward inclined state, so that one end of each plug pin is inserted into the electric connection end 21 in a sliding mode along the inner wall of the guide end 24, the arranged guide end 24 increases the opening diameter of the electric connection end 21, the plug-in connector is easier to install, copper scraps caused by the fact that the plug pins abut against the free end of the electric connection end 21 when the plug pins are installed are avoided, and the yield of the flower tail plug-.

Further, the metal terminal 20 is an integrated into one piece's sheet metal component, the sheet metal component bends and is the cylinder structure.

In another embodiment of the present invention, the position where the middle end 22 and the wiring end 23 are connected is provided with a blocking piece 25 for preventing the punching glue from entering the inside of the metal terminal 20 during injection molding. Specifically, will participate in and install back in metal terminal 20, mould plastics and dash and glue, owing to be provided with separation blade 25, can prevent to dash to glue and enter into wiring end 23 to avoid dashing to glue the influence to wiring end 23, improve the utility model discloses a yields.

In another embodiment of the present invention, the outer sidewall of the terminal 23 is provided with a limiting bump 26 for limiting the metal terminal 20, and the limiting bump 26 abuts against the left end face of the housing 10. Specifically, when the metal terminal 20 is mounted in the mounting cavity 11, the position of the metal terminal 20 is limited by the abutment of the projection 26 with the left end surface of the housing 10 to avoid affecting the connection of the terminal 23.

In another embodiment of the present invention, the intermediate end 22 is provided with a first through hole 27 for preventing the metal terminal 20 from sliding in the mounting cavity 11. Specifically, during injection molding, the punching glue contacts with the inner wall of the mounting cavity 11 through the first through hole 27, so that the metal terminal 20 is fixed in the mounting cavity 11, the metal terminal 20 is prevented from rotating in the mounting cavity 11, and the use stability is improved.

In another embodiment of the present invention, the electrical terminals 21 are formed by assembling three electrical tabs. Specifically, when the metal terminal 20 is inserted into the mounting cavity 11, the three electrical tabs are pressed so that the electrical tabs approach each other, that is, the diameter of the electrical connection end 21 is reduced, thereby facilitating insertion into the mounting cavity 11, and after insertion, the electrical tabs are reset and abut against the inner wall of the mounting cavity 11, thereby clamping the metal terminal 20 in the mounting cavity 11.

In another embodiment of the present invention, the cross section of the terminal 23 has a semicircular structure, and both sides of the terminal 23 having the semicircular structure extend to form wire clamping portions. Specifically, one end of the wiring harness is placed on the wiring terminal 23, the wiring harness is clamped through the wire clamping portions on the two sides, the clamping operation is simple, and the production efficiency is improved.

In another embodiment of the present invention, the housing 10 includes a plum blossom shape insert 12 and an annular end 13, the annular end 13 is disposed on the left end surface of the plum blossom shape insert 12, and the plum blossom shape insert 12 is formed by splicing three cylindrical rubber sleeves.

Furthermore, the annular end 13 is larger than the plum blossom-shaped plug bush 12, so that a positioning surface is formed between the annular end 13 and the plum blossom-shaped plug bush 12 during installation, and the installation is convenient.

In another embodiment of the present invention, the left end face of the annular end head 13 is provided with a limiting end 14. Specifically, the limiting end 14 is used for limiting the installation of the housing 10, and the installation accuracy is improved.

Furthermore, the plum blossom-shaped plug bush 12, the annular end head 13 and the limiting end 14 are integrally formed to form the shell 10, and the shell 10 can be formed by injection molding once during production, so that the production difficulty is reduced.

In another embodiment of the present invention, a fixing groove 15 is disposed on a side surface of the annular end head 13, a second through hole 16 is disposed on a left end surface of the limiting end 14, and the second through hole 16 is communicated with the fixing groove 15. Specifically, the housing 10 is fixedly installed through the fixing groove 15, and the second through hole 16 communicates with the fixing groove 15, so that the fixing connection can be achieved by means of clamping.

In another embodiment of the present invention, the inner wall of each of the mounting cavities 11 is provided with a boss 17 for limiting the guiding end 24. Specifically, the metal terminal 20 is installed in installation cavity 11 and is, and leading end 24 and boss 17 butt prevent further that metal terminal 20 from removing towards the right end face of casing 10, in order to improve the utility model discloses a yields.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The plum blossom tail insert inner frame is characterized by comprising a shell and three metal terminals, wherein the shell is provided with a left end face and a right end face which are oppositely arranged, the shell is provided with installation cavities matched with the metal terminals, the installation cavities penetrate through the left end face and the right end face of the shell, the metal terminals are respectively installed in the installation cavities, each metal terminal comprises an electric connection end, a middle end and a wiring end, the middle end is connected between the electric connection end and the wiring end, the free end of the electric connection end is further provided with a guide end, and the diameter of the guide end is gradually increased from the back to the direction of the electric connection end.

2. The plum blossom tail insert inner frame of claim 1, wherein a position where the middle end and the wiring end are connected is provided with a blocking piece for preventing punching glue from entering the inside of the metal terminal during injection molding.

3. The plum blossom tail insert inner frame of claim 1, wherein the outer side wall of the wiring end is provided with a limiting lug for limiting the metal terminal, and the limiting lug is abutted with the left end face of the shell.

4. The plum blossom end insert inner frame of claim 1, wherein the middle end is provided with a through hole for preventing the metal terminal from sliding in the mounting cavity.

5. The plum blossom end insert inner frame according to any one of claims 1 to 4, wherein the electric connection terminal is formed by combining three electric tabs.

6. The plum blossom tail insert inner frame according to any one of claims 1 to 4, wherein the cross section of the wiring terminal is in a semicircular structure, and wire clamping parts extend from two sides of the wiring terminal in the semicircular structure.

7. The plum blossom tail insert inner frame according to any one of claims 1 to 4, wherein the housing comprises a plum blossom-shaped insert sleeve and an annular end, the annular end is arranged on the left end face of the plum blossom-shaped insert sleeve, and the plum blossom-shaped insert sleeve is formed by splicing three cylindrical rubber sleeves.

8. The plum blossom tail insert inner frame according to claim 7, wherein the left end face of the ring-shaped end head is provided with a limiting end.

9. The plum blossom tail insert inner frame according to claim 8, wherein the side of the ring-shaped end head is provided with a fixing groove, the left end face of the limiting end is provided with a through hole, and the through hole is communicated with the fixing groove.

10. The plum blossom end insert inner frame according to any one of claims 1 to 4, wherein the inner wall of each mounting cavity is provided with a boss for limiting the guide end.