JP3177068U - Small coaxial connector - Google Patents

Abstract

A small coaxial connector used for connecting a coaxial cable is provided.
A connecting part includes a metal outer casing and a plastic core part. A plurality of fixed claw pieces are installed on the lower edge of the metal outer casing, and the plastic core part is provided. 112 has a through hole 1121 and is pre-molded with the metal outer casing 111. The switch component 12 includes a metal terminal 121 and an insulating base 122. The metal terminal 121 corresponds to the through hole 1121, and includes a first terminal 1211 and a second terminal 1212. The insulating base 122 and the metal terminal 121 are pre-molded. Thus, the first exposed end 12111 and the second exposed end 12121 of the first terminal 1211 and the second terminal 1212 extend and overlap the inner side surface 1222 of the insulating base 122. The connecting part 11 is coupled onto the switch part 12, the plurality of fixed claw pieces 1111 are bent and fitted to the outer periphery of the insulating base 122, cover the metal terminal 121, and on the outer surface below the insulating base 122. An opening 1223 is provided and penetrates the inner side surface 1222, and the opening 1223 corresponds to the exposed ends 12111 and 12121 of the first terminal 1211 and the second terminal 1212, respectively.
[Selection] Figure 2

Description

The present invention relates to a small coaxial connector, and more particularly to a small coaxial connector used for connecting a coaxial cable.

Conventional coaxial connectors are often used for RF circuit test switches such as mobile phone terminals, GPS, or portable computers and PDAs, or other electronic devices, or for connecting coaxial cables, usually on a circuit board Is done.
The connection test or operation of the circuit board and the coaxial cable is performed through ON (ON) or OFF (OFF) of electrical contact in the coaxial connector.
The coaxial connector needs to be downsized in order to meet the trend and market needs of 3C products that are “compact, thin and light”.

However, the conventional coaxial connector is limited in manufacturing method and process, and complicated and troublesome assembly process, and further miniaturization is difficult.
Moreover, mass production cannot be performed at once by the mechanization method.
FIG. 1 is an exploded view of a conventional coaxial connector.
The conventional coaxial connector 9 shown in the figure includes a first switch component 91 and a second switch component 92.
The first switch component 91 includes a metal cover 911 and a plastic core part 912.
The second switch component 92 includes a terminal unit 921 and a base 922.
The first switch component 91 is coupled onto the second switch component 92 through a plurality of metal securing pins 9111 on the metal cover 911.
Thus, the terminal unit 921 is covered in the first switch component 91 and the second switch component 92.

The first switch component 91 and the second switch component 92 are each integrally molded by an injection molding machine using a mold 93 (only a partial structure of the mold 93 is shown).
On one side of the bottom base 922 of the second switch component 92, a passage 923 penetrating the bottom base 922 is installed.
That is, when the second switch component 92 is injection-molded in the mold 93, the slide block 931 is installed on the mold 93 and placed in the base 922.
The base 922 and the terminal unit 921 are integrally molded by injecting a resin material.
Thereafter, the slide block 931 is further pulled out in the horizontal direction and released, and thus a space having a predetermined distance is formed below the terminal unit 921.
At the same time, it can be avoided that the resin material covers the area of the first metal piece 9211 and the second metal piece 9212 of the terminal unit 921.

That is, in the prior art, the resin block is fixed to the terminal unit 921 on the base 922 by injecting the slide block 931 in the lateral direction and injecting the resin material by a manufacturing method of extracting from the passage 923. can do.
Thus, the first metal piece 9211 and the second metal piece 9212 included in the terminal unit 921 have a space for elastic deformation, and constitute an elastic electric contact structure similar to the power switch ON or OFF.

Since the volume of the conventional coaxial connector 9 itself is very small, the thickness of the slide block 931 on the mold 93 must be as thin as possible.
As a result, the slide block 931 on the mold 93 is often easily deformed during operation, and even a tearing phenomenon may occur.
Moreover, since the slide block 931 has to be subjected to a release process in the lateral direction, the conventional coaxial connectors 9 that are arranged opposite to each other on the both sides are respectively pulled out from the slide block 931 in the lateral direction, so that the resin The number that can be produced at one time by the material injection molding machine is to be limited.

In addition, the manufacture of this type of slide block 931 in the lateral release method clearly reaches the limit in the size of the coaxial connector that has already been miniaturized.
As a result, it is very difficult to reduce the length, width, and height of the existing coaxial connector 9 as a whole to 1.8 mm or less, and it is almost impossible to further reduce the volume of the coaxial connector.
As a result, it is difficult to keep up with the ever-increasing trend of the electronic product market, which is “compact, thin and light”.

Therefore, the present invention completely solves the drawback that breakage is likely to occur at the time of mold release in the manufacture of the slide block on the conventional coaxial connector mold by a newer and more efficient mold production method.
As a result, the production yield can be increased, the production speed can be increased at the same time, the overall production efficiency can be increased, and the overall volume of the coaxial connector can be reduced.
In this way, it is possible to achieve the standards required by the next-generation electronic parts that are steadily advancing, ensure the quality, and improve the competitiveness with the competitive products in the market.
The present invention has been made in view of the above-described drawbacks of conventional small coaxial connectors.

Japanese Patent Laid-Open No. 7-183069

  The problem to be solved by the present invention is to use a slide block on an axially-released mold, form an opening below the insulating base, extend the mold life, and at the same time achieve mass production, To provide a small coaxial connector capable of reducing the volume of the entire coaxial connector.

In order to solve the above problems, the present invention provides the following small coaxial connector.
The small coaxial connector defines the axial direction and consists of connecting parts and switch parts.
The connecting part has a coaxial cable externally provided with a metal outer casing and a plastic core part.
The switch component includes a metal terminal and an insulating base,
The plastic core part has a through hole, and is pre-molded and integrally molded with the metal outer casing, whereby the plastic core part is bonded to the inner edge of the metal outer casing,
Further, the plurality of fixed claw pieces installed below the metal outer casing are curved and fitted into a predetermined plurality of engagement tanks around the outer periphery of the insulating base, covering the metal terminals,
The metal terminal corresponds to the through hole, and includes a first terminal and a second terminal,
The insulating base is pre-molded with the metal terminal and fixed and integrally molded, whereby the first exposed end and the second exposed end of the second terminal are extended, and the insulating bottom is extended. It overlaps on the inner surface of the base and is connected by the relationship of the elastic circuit switch,
The metal terminal and the insulating base of the switch part are injected and integrally molded,
The resin material does not cover the area of the first terminal and the second terminal, and at the same time, an elastic space is provided below the first terminal and the second terminal on the insulating base, thus the metal. The first terminal of the terminal has a space for elastic deformation, and forms a structure of an elastic circuit switch (ON ON or OFF OFF) between the second terminal,
Therefore, the switch part is injected and integrally molded by the mold that is released in the axial direction, and is opened on the outer surface below the insulating base by the slide block that is installed on the mold. Through the inner surface of the insulating base,
Moreover, the opening corresponds to the first exposed end and the second exposed end,
The resin material does not cover the area of the first exposed end and the second exposed end, and at the same time, an elastic space necessary for bending the first terminal is formed below the metal terminal,
Thus, the mold for manufacturing the switch component of the small coaxial connector of the present invention is deformed when the slide block on the mold is released, and further, the situation where the mold is torn and damaged is generated as shown in FIG. It can solve the drawbacks of the injection molding method of the technology, and at the same time can greatly accelerate the mass production speed and reduce the volume of the coaxial connector.

  The small coaxial connector of the present invention uses a slide block on the mold that is released in the axial direction, and an opening is formed under the insulating base, extending the mold life and simultaneously achieving mass production. The entire volume can be reduced.

It is a three-dimensional exploded view of a conventional coaxial connector. It is a three-dimensional exploded view of the present invention small coaxial connector. It is a three-dimensional exploded view from another viewing angle of the small coaxial connector of the present invention. It is a three-dimensional combination diagram of the small coaxial connector of the present invention. FIG. 4 is a front, left, right, heel, and elevation view of the small coaxial connector of the present invention. FIG. 4 is a front, left, right, heel, and elevation view of the small coaxial connector of the present invention. FIG. 4 is a front, left, right, heel, and elevation view of the small coaxial connector of the present invention. FIG. 4 is a front, left, right, heel, and elevation view of the small coaxial connector of the present invention. FIG. 4 is a front, left, right, heel, and elevation view of the small coaxial connector of the present invention. It is a cross-sectional schematic diagram in the AA position of the small coaxial connector of the present invention. It is a schematic diagram which shows the mode of the injection molding of the switch components of this invention small coaxial connector. It is a cross-sectional schematic diagram of another embodiment of the small coaxial connector of the present invention. It is a three-dimensional exploded view of the second embodiment of the small coaxial connector of the present invention. FIG. 3 is a three-dimensional combination diagram of the second embodiment of the small coaxial connector of the present invention. FIG. 4 is a front view, a left view, a right view, a heel view, and an elevation view of a second embodiment of the small coaxial connector according to the present invention. FIG. 4 is a front view, a left view, a right view, a heel view, and an elevation view of a second embodiment of the small coaxial connector according to the present invention. FIG. 4 is a front view, a left view, a right view, a heel view, and an elevation view of a second embodiment of the small coaxial connector according to the present invention. FIG. 4 is a front view, a left view, a right view, a heel view, and an elevation view of a second embodiment of the small coaxial connector according to the present invention. FIG. 4 is a front view, a left view, a right view, a heel view, and an elevation view of a second embodiment of the small coaxial connector according to the present invention.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

2, 3, 4, 5 to 9, and 10 are a three-dimensional exploded view of a small coaxial connector of the present invention, a three-dimensional exploded view from another viewing angle, a three-dimensional combination diagram, a front view, and a left side view, It is a right view, a bird's-eye view, an elevation view, and a cross-sectional schematic diagram at the AA position.

The small coaxial connector 1 of the present invention defines an axial direction 5 (that is, vertical vertical direction), and includes a connecting part 11 and a switch part 12.

The connecting part 11 is coupled to the switch part 12 and can electrically connect an external coaxial cable 7 and includes a metal outer casing 111 and a plastic core part 112.

The switch component 12 includes a metal terminal 121, an insulating base 122, and an insulating bottom plate 123.

The plastic core part 112 is provided with a through hole 1121, and a coupling part 1122 that is recessed inward is installed at the apex end of the plastic core part 112.

The center of the coupling portion 1122 communicates with the through-hole 1121 and is pre-molded and integrally molded by the metal outer casing 111 and the injection mold 3 (only a part of the injection mold 3 is shown). .

As a result, the plastic core part 112 is coupled onto the metal outer casing 111, and the signal end 71 of the coaxial cable 7 passes through the through-hole 1121 via the coupling portion 1122, thus the metal terminal. 121 can be inspired.

In addition, a plurality of fixed claw pieces 1111 are installed at the lower peripheral edge of the metal outer casing 111, and a plurality of engagement tanks 12211 are installed around the outer surface 1221 below the insulating base 122, thereby The corresponding fixed claw pieces 1111 can be bent and fitted.

By bending the plurality of fixed claw pieces 1111 and sandwiching the connecting part 11, the connecting part 11 is coupled onto the switch part 12 and covers the metal terminal 121.

The metal terminal 121 includes a first terminal 1211 and a second terminal 1212 corresponding to the through hole 1121.

The insulating base 122 is fixed and integrally molded with the metal terminal 121 by an injection molding method, whereby the first exposed end 12111 of each of the first terminal 1211 and the second terminal 1212, and the second The exposed end 12121 extends and overlaps the inner side surface 1222 of the insulating base 122.

The first exposed end 12111 exposed on the inner side surface 1222 of the insulating base 122 is curved and engages below the second exposed end 12121.

In addition, the electrical relationship between the first terminal 1211 and the second terminal 1212 always maintains an ON (ON) contact state by utilizing the characteristics of the metal body itself having an elastic recovery force.

In other words, the metal terminal 121 is in a mode similar to an elastic circuit switch (ON or OFF), and the first terminal 1211 and the second terminal 1212 are in contact with each other to achieve the purpose of electrical connection.

In addition, an opening 1223 is provided in the outer surface 1221 located below the insulating base 122 and penetrates the inner surface 1222 of the insulating base 122.

Moreover, the opening 1223 corresponds exactly to the first exposed end 12111 and the second exposed end 12121 where the first terminal 1211 and the second terminal 1212 extend, respectively.

The insulating bottom plate 123 corresponds to the opening 1223 and fits into the opening 1223, thus sealing the metal terminal 121 in the connecting part 11 and the switch part 12.

A protruding portion 1231 is installed at a predetermined position of the insulating bottom plate 123, and the protruding portion 1231 corresponds to the first exposed end 12111 and the second exposed end 12121 of the first terminal 1211.

That is, the protruding portion 1231 is positioned below the first exposed end 12111.

This prevents the first exposed end 12111 of the first terminal 1211 from being pressed by the signal end 71 of the coaxial cable 7 and causing an irreversible plastic deformation due to excessive bending deformation.

FIG. 11, which is shown together with FIG. 10, is a schematic view showing a state of injection molding of the switch component of the small coaxial connector of the present invention.

Both the metal terminal 121 and the insulating base 122 of the switch component 12 are integrally formed by an injection mold 3.

Resin material does not cover the area of the first exposed end 12111 and the second exposed end 12121, and at the same time, below the first terminal 1211 and the second terminal 1212 on the insulating base 122, An elastic space 124 having a predetermined distance is provided.

As a result, the first exposed end 12111 of the first terminal 1211 is provided with a space that can be bent and elastically deformed when receiving a lower pressure of the signal end 71 of the coaxial cable 7.

At the same time, this forms an electrically disconnected state between the first terminal 1211 and the second terminal 1212, that is, forms a structure similar to an elastic circuit switch (OFF OFF).

In this way, the injection mold 3 that moves in the axial direction 5 (that is, the vertical vertical direction) can be injection-molded with the resin material of the switch component 12.

Originally, the axial direction 5 is provided by a slide block 31 (see FIGS. 2 and 11) installed on the injection mold 3 which was in contact with the lower side of the first exposed end 12111 and the second exposed end 12121. In addition, in the direction of the outer surface 1221 below the insulating base 122, the opening 1223 penetrating the inner side surface 1222 of the insulating base 122 is formed after releasing from the outside.

In addition, the opening 1223 corresponds to the first exposed end 12111 and the second exposed end 12121 below which the first terminal 1211 and the second terminal 1212 extend, respectively.

At the same time, this forms the elastic space 124 required when the first exposed end 12111 is elastically curved between the metal terminal 121 and the inner side surface 1222 on the insulating base 122.

Further, the insulating bottom plate 123 is fitted into the opening 1223, and thus the outer side surface 1221 of the insulating bottom base 122 is sealed.

Thus, the injection mold 3 used for manufacturing the switch component 12 of the small coaxial connector 1 of the present invention can be arranged in an orderly manner, and the number of switch components 12 that can be injection molded at a time can be increased.

In addition, the injection mold 3 is arranged in an orderly manner, and each slide block 31 can be released once.

In this way, not only can many of them be arranged in an orderly manner, but also the slide block 31 in the switch part 12 after injection molding can be released downward in the axial direction 5.

Therefore, it is possible to avoid the occurrence of damage due to deformation or tearing when the slide block 31 is released, and at the same time, the volume of the small coaxial connector 1 can be reduced.

Furthermore, the need for 3C electronic parts “compact, thin and light” that is increasing day by day can be met, and the production efficiency and quality of the switch part 12 can be improved.

In the actual test production process, the overall length, width, and height of the small coaxial connector 1 of the present invention are determined by the structural design and release method of the small coaxial connector 1 of the present invention and the injection mold 3 thereof. All can be 0.9mm or less, ie the total volume is 1/8 of the prior art.

In the near future, it is expected that the length, width, and height can be reduced to 0.6 mm or less, respectively, and the disadvantage of the conventional technique that the purpose of volume reduction cannot be achieved can be solved.

In the following other embodiments of the present invention, most of the parts are similar or similar to the above-described embodiments, and therefore, the description of the homologous parts and structure is not repeated.

In addition, homologous parts are given homologous names and signs, and similar parts are given homologous names, but are distinguished by adding alphabets after the signs, and are not rewritten.

Since another embodiment of the miniature coaxial connector of the present invention shown in FIG. 12 is roughly similar to the embodiment shown in FIG. 2, repetitive descriptions of homologous parts and structures will not be made.

The difference between the small coaxial connector of another embodiment of the present invention and the above-described embodiment is that in the switch component 12a of the small coaxial connector 1a of another embodiment of the present invention, the first terminal 1211a of the metal terminal 121a is used. In addition, the end position of the first exposed end 12111a is a point that curves toward the outer surface 1221 of the insulating base 122 and extends to the first elastic end 12112a.

The first elastic end 12112a is located approximately at the center of the opening 1223, and the first support end 12113a is curved at the end of the first elastic end 12112a.

In addition, the first support end 12113a is curved so as to be substantially parallel to the outer surface 1221 of the insulating base 122, and does not exceed the outer surface 1221.

Since the opening 1223 of the insulating base 122 is not sealed by the insulating bottom plate 123 unlike the embodiment shown in FIG. 10, the small coaxial connector 1a according to another embodiment of the present invention is formed on the substrate 4. When coupled and electrically connected to the substrate 4, the first support end 12113a of the first terminal 1211a contacts the substrate 4.

Accordingly, an elastic recovery force is provided to the first exposed end 12111a through the first elastic end 12112a, and thus the first terminal 1211a and the second terminal 1212 are always kept in an ON (ON) contact state.

Further, the first support end 12113a and the first elastic end 12112a are further curved by the first exposed end 12111a of the first terminal 1211a being subjected to excessive compression of the signal end 71 of the coaxial cable 7, Occurrence of a situation where restoration is impossible due to plastic deformation can be prevented.

FIGS. 13, 14 and 15 to 19 are a three-dimensional exploded view, a three-dimensional combination diagram, a front view, a left side view, a right side view, a bird's eye view, and a top view, respectively, of the second embodiment of the small coaxial connector of the present invention. .

The second embodiment of the miniature coaxial connector of the present invention shown in FIGS. 13 and 14 and FIGS. 15 to 19 is similar to the embodiment shown in FIG.

The difference between the small coaxial connector according to the second embodiment of the present invention and the embodiment shown in FIG. 2 is that the small coaxial connector 1b according to the second embodiment of the present invention is arranged on the opposite peripheral edge of the lower end of the metal outer casing 111b. The fixed claw piece 1111b is installed.

In addition, engagement tanks 12211b are installed on the opposing peripheral edges of the outer side surface 1221b below the insulating base 122b, and the corresponding fixed claw pieces 1111b are respectively bent and fitted.

In addition, open tubs 1123b corresponding to each other are installed on both sides of the plastic core part 112b, and protruding portions 12221b protruding correspondingly on the inner side surface 1222b of the insulating base 122b are respectively fitted. Combined and localized.

As a result, before the metal outer casing 111b is fitted and fixed to the insulating base 122b, the metal outer casing 111b is first protruded on the insulating base 122b by the two open tanks 1123b of the plastic core part 112b. The first protrusion 12221b is fitted first.

In this way, the plastic core part 112b can be previously positioned on the insulating base 122b, and the connecting part 11b and the switch part 12b can be coupled in a more accurate and quicker manner.

The names and contents of the present invention described above are only used for explaining the technical contents of the present invention, and do not limit the present invention. All equivalent applications based on the spirit of the present invention, parts (structures) conversion, replacement, and quantity increase / decrease shall be included in the protection scope of the present invention.

  The present invention has the novelty that is a requirement for utility model registration, has sufficient progress compared to similar products of the past, has high practicality, meets the needs of society, and has a very high industrial utility value. large.

1, 1a, 1b Small coaxial connector
11, 11b Connecting parts
111, 111b Metal outer casing
1111, 1111b Fixed claw piece
112, 112b Plastic core parts
1121 Through hole
1122 Joint
1123b Open tank
12, 12a, 12b Switch parts
121, 121a Metal terminal
1211, 1211a 1st terminal
12111, 12111a First exposed end
12112a First elastic end
12113a first support end
1212 Second terminal
12121 Second exposed end
122, 122b Insulated base
1221, 1221b Outside surface
12211, 12211b Engagement tank
1222, 1222b inside surface
12221b Protrusion
1223 opening
123 Insulation bottom plate
1231 Projection
124 Elastic space
3 Injection mold 3
31 Slide block
4 Board
5 Axial direction
7 Coaxial cable
71 Signal end
9 Conventional coaxial connector
91 First switch component
911 metal cover
9111 Metal fixing pin
912 Plastic core parts
92 Second switch component
921 terminal unit
9211 First metal piece
9212 Second metal piece
922 base
923 road
93 Mold
931 slide block

Claims (3)

A small coaxial connector consists of a connecting part, a switch part, and an exposed end.
The connecting part includes a metal outer casing and a plastic core part, and a plurality of fixed claw pieces are installed on a lower end periphery of the metal outer casing. The plastic core part includes a through hole and is integrated with the metal outer casing. Pre-mold,
The switch component includes a metal terminal and an insulating base, the metal terminal corresponds to the through hole, and includes a first terminal and a second terminal, and the insulating base is pre-molded with the metal terminal, In addition, the first terminal and the second exposed end of the second terminal and the second exposed end of the second terminal are extended and overlapped on the inner surface of the insulating base,
The connecting part is coupled onto the switch part, whereby the plurality of fixing claws of the metal outer casing are bent and fitted to the outer periphery of the insulating base, covering the metal terminal,
An opening is provided in an outer surface below the insulating base and penetrates the inner surface, and the opening is formed between the first exposed end and the second exposed of each of the first terminal and the second terminal. A compact coaxial connector characterized by its corresponding end. The opening forms the opening penetrating through the insulating base after being released to the outside in the axial direction and below the insulating base by a slide block installed on the injection mold,
Moreover, the small coaxial connector further includes an insulating bottom plate,
The insulating bottom plate corresponds to the opening and fits into the opening, thus sealing the metal terminal in the connecting part and the switch part;
2. The small coaxial according to claim 1, wherein a protruding portion is provided at a predetermined position of the insulating bottom plate, and the protruding portion corresponds to the first exposed end of the first terminal. connector. At the apex end of the plastic core part, install a coupling part recessed inward,
The center of the coupling portion is exposed through the through hole,
The first exposed end extending and overlapping on the inner surface of the insulating base is curved and engages below the second exposed end;
Thereby, the electrical relationship between the first terminal and the second terminal is always in an on-contact state,
A plurality of engagement tubs are installed around the outer surface below the insulating base, whereby the corresponding fixing claw pieces can be curved and fitted,
The terminal end position of the first terminal is curved toward the outer surface of the insulating base and extends to a first elastic end, and the first elastic end is located approximately in the center of the opening, and the first terminal The first support end is curved at the end of the elastic end,
The small coaxial connector according to claim 1, wherein the first support end is curved so as to be substantially parallel to the outer surface of the insulating base and does not exceed the outer surface.

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