JP7048091B2 - Coaxial connector - Google Patents

Description

The present invention relates to a coaxial connector. In particular, the present invention relates to a coaxial connector attached to a terminal of a coaxial cable and having a pressure welding connection type contact capable of pressure welding connection with a central conductor constituting the coaxial cable.

By connecting the coaxial connector fixed to the terminal of the coaxial cable to the receptacle mounted on the printed circuit board, high frequency signals can be transmitted from the coaxial cable to the printed circuit board. Alternatively, a high frequency signal can be transmitted from the printed circuit board to the coaxial cable.

Generally, a coaxial cable is composed of a circular center conductor, a dielectric that surrounds the center conductor, an outer conductor such as a braided wire that surrounds the dielectric, and an insulating sheath that covers and protects the outer conductor.

For example, a prior art coaxial connector comprises a metal shell that serves as an external contact. The coaxial connector also comprises a bellows-shaped contact with the housing. The shell secures the insulating sheath of the coaxial cable by crimping on one end side thereof. Further, the shell is electrically connected to the outer conductor of the coaxial cable at one end side thereof. The shell is formed in a cylindrical shape on the other end side.

The housing electrically insulates the shell and contacts. The contacts are arranged inside the housing, surrounded by external contacts. The contacts are soldered to the center conductor of the coaxial cable. Then, the center conductor and the contact are electrically connected.

However, since the coaxial connector according to the prior art connects the center conductor of the coaxial cable and the contact by soldering, the work man-hours in this process increase, the production efficiency decreases, and the manufacturing cost increases, which is one of the factors. It was tied up.

Since the coaxial connector by the conventional technique has the above-mentioned problems, the manufacturing cost can be reduced and the connection process with the coaxial cable can be facilitated by pressure-welding the center conductor of the coaxial cable and the contact. The coaxial connector is disclosed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 7-106002

8A and 8B are views showing the configuration of a coaxial connector according to the prior art, FIG. 8A is a plan view of the coaxial connector whose main part is shown in a cross-sectional view, and FIG. 8B is a vertical section of the coaxial connector. FIG. 8 (C) is a right side view of the coaxial connector whose main part is shown in a vertical sectional view.

9A and 9B are views showing the configuration of a contact provided in a coaxial plug constituting a coaxial connector according to the prior art, FIG. 9A is a plan view of the contact, and FIG. 9B is a front view of the contact. 9 (C) is a right side view of the contact.

FIG. 10 is a vertical cross-sectional view showing a configuration of a coaxial plug constituting a coaxial connector according to the prior art, and is a state diagram in which a part of a shell and a part of a housing are opened.

Note that FIGS. 8 and 9 of the present application correspond to FIGS. 2 and 7 of Patent Document 1. Further, FIG. 10 of the present application corresponds to FIG. 9 of Patent Document 1.

Referring to FIG. 8, the coaxial connector according to the prior art is composed of a coaxial plug 8 and a coaxial receptacle (hereinafter, abbreviated as a receptacle) 9. The coaxial plug 8 is attached to the terminal of the coaxial cable Cb. The receptacle 9 is mounted on the printed circuit board 9p.

Referring to FIG. 8, the coaxial cable Cb covers the circular center conductor Wc, the dielectric Di surrounding the center conductor Wc, the outer conductor Wb such as the braided wire surrounding the dielectric Di, and the outer conductor Wb. It is composed of an insulating sheath Wi that protects it.

By connecting the coaxial plug 8 fixed to the terminal of the coaxial cable Cb to the receptacle 9 mounted on the printed circuit board 9p with reference to FIG. 8, a high frequency signal can be transmitted from the coaxial cable Cb to the printed circuit board 9p. Alternatively, a high frequency signal can be transmitted from the printed circuit board 9p to the coaxial cable Cb.

Referring to FIG. 8 or 10, the coaxial plug 8 includes a bellows-shaped contact 81, a front-circle-rear-shaped housing 82, and a metal shell 83 that serves as an external contact. The housing 82 has a strip-shaped lid housing 821. The shell 83 has a cable clamp 831.

Referring to FIG. 9, the contact 81 has a pair of contact pieces 81s / 81s and a pair of pressure contact blades 81d / 81d. With reference to FIG. 8B or FIG. 8C, the central contact 91 of the receptacle 9 can be introduced between the pair of contact pieces 81s and 81s. Then, the contact 81 and the central contact 91 can be electrically connected.

Referring to FIG. 9 or FIG. 10, the pair of pressure welding blades 81d and 81d can cut a part of the outer periphery of the dielectric Di. Then, when the dielectric Di is introduced into the slot 811 formed between the pair of pressure welding blades 81d and 81d, the center conductor Wc and the contact 81 can be electrically connected.

Referring to FIG. 8 or FIG. 10, the housing 82 has a disk portion 822 and a square portion 823. A part of the square portion 823 projects in the outer peripheral direction from the disk portion 822. The disk portion 822 has a first storage chamber (not shown) in the center.

Referring to FIG. 8 (B) or FIG. 8 (C), the first accommodation chamber (not shown) has a rectangular opening on one surface of the housing 82 so that the central contact 91 can be introduced freely. A pair of contact pieces 81s / 81s can be arranged inside the first storage chamber.

Referring to FIG. 10, the housing 82 has a second accommodating chamber 82r that is rectangularly opened on the other surface. A part of the second accommodation chamber 82r communicates with the first accommodation chamber (not shown). Dielectric Di can be introduced into the second accommodation chamber 82r from the outer peripheral direction.

Referring to FIG. 8 (A) or FIG. 10, shell 83 has a cylindrical portion 832 and a pair of extending pieces 833, 833. The cylindrical portion 832 can accommodate the disk portion 822 from the same direction in which the pair of contact pieces 81s and 81s project toward one surface of the cylindrical portion 832. The cylindrical portion 832 can come into contact with the external contact 92 of the receptacle 9 (see FIG. 8).

Referring to FIG. 8A or FIG. 10, in the pair of extending pieces 833 and 833, a part of the outer periphery of the cylindrical portion 832 extends continuously in substantially parallel manner. The pair of extending pieces 833 and 833 can accommodate the square portion 823 inside.

Referring to FIG. 8 or FIG. 10, the lid housing 821 has one end thereof connected to a part of the disk portion 822 flexibly by a hinge 82h. The lid housing 821 can open and close the second storage chamber 82r on the other end side.

Referring to FIG. 8 (A) or FIG. 10, the cable clamp 831 has a bottom plate piece 83b. One end of the bottom plate piece 83b is flexibly connected to a part of the cylindrical portion 832 by a hinge 83h. Further, the bottom plate piece 83b can close the upper surface of the disk portion 822 of the housing 82 in conjunction with the lid housing 821 at the other end side (see FIG. 8B). As a result, the contact 81 and the shell 83 can be insulated.

Referring to FIG. 8 or FIG. 10, the cable clamp 831 includes a pair of piercing barrels 83p / 83p and a pair of insulation barrels 83i / 83i. The one-to-one set of piercing barrels 83p and 83p can penetrate the insulating sheath Wi and be electrically connected to the outer conductor Wb by using a special tool. The pair of insulation barrels 83i and 83i can hold the coaxial cable Cb by crimping the insulating sheath Wi. The one-to-one set of piercing barrels 83p and 83p can also hold the coaxial cable Cb.

Next, the assembly process of the coaxial plug 8 according to the prior art will be described. With reference to FIG. 10, the coaxial cable Cb is cut to a fixed size in advance. Next, the outer conductor Wb and the insulating sheath Wi are peeled off from the end face of the coaxial cable Cb at a predetermined length. It is preferable that the end face of the outer conductor Wb and the end face of the insulating sheath Wi are peeled off so as to coincide with each other. In this way, the coaxial cable Cb is terminally processed in advance.

On the other hand, referring to FIG. 10, the coaxial plug 8 press-fits the contact 81 into the housing 82. Next, the dielectric Di of the coaxial cable Cb is arranged on the pair of pressure welding blades 81d and 81d, and the center conductor Wc is pressure-welded to the contact 81 by using a jig or a tool.

Next, referring to FIG. 10, the cable clamp 831 is bent, and the lid housing 821 closes the upper surface of the disk portion 822 of the housing 82. Next, using a dedicated tool, a pair of piercing barrels 83p and 83p are pressure-welded to the outer conductor Wb. Further, the pair of insulation barrels 83i and 83i are crimped to the insulating sheath Wi (see FIG. 8). Then, a series of assembly processes are completed.

In this way, the coaxial connector by the conventional technology is "coaxial cable sizing cut"-> "coaxial cable terminal processing (cable strip)"-> "center conductor pressure welding"-> "(shell bending) + (housing lid closed)"-> " The harness has been completed through the process of "external conductor pressure welding".

However, the coaxial connector according to the prior art has a problem that many assembly processes are required. There is a demand for coaxial connectors that improve production efficiency and reduce manufacturing costs by reducing the number of assembly processes. The above can be said to be the subject of the present invention.

The present invention has been made in view of such problems, and an object of the present invention is to provide a coaxial connector capable of reducing the number of assembly steps.

The present inventor provides a ridge on one surface of a lid housing that is flexibly connected to a part of the housing, and when the cable clamp 831 is bent, the ridge presses the dielectric toward the pressure welding blade of the contact. Therefore, we thought that the central conductor could be pressure-welded to the contact, and based on this, we invented the following new coaxial connector.

(1) The coaxial connector according to the present invention is a coaxial cable connecting a central conductor, a dielectric surrounding the central conductor, an outer conductor covering the dielectric, and a coaxial cable having an insulating sheath covering the outer conductor. A pair of contact pieces that are curved from both sides of the top plate, allow the contact on the other side to be introduced inside, and have an Ω-shaped opening on the tip side, and the opposite of the protruding direction of the pair of contact pieces. A first accommodation in which a contact having a pair of pressure contact blades standing up from the top plate in the direction and having separated blade surfaces and a contact on the other side are freely opened on one surface and the pair of the contact pieces are arranged inside. It has a disk portion having a chamber and a square portion partly protruding from the disk portion in the outer peripheral direction, and a part communicates with the first storage chamber and the contact is made from the protruding direction of the contact piece. And the front circular rear-shaped housing in which the second accommodating chamber into which the dielectric can be introduced is opened on the other surface, and the disk portion from the same direction as the direction in which the pair of the contact pieces protrude toward one surface. A conductive shell having a cylindrical portion capable of accommodating a portion thereof, and a portion of the outer periphery of the cylindrical portion extending continuously in substantially parallel manner and having a pair of extending pieces capable of accommodating the square portion inside. The housing has a strip-shaped lid housing in which one end is flexibly connected to a part of the disk portion and the other end side can open and close the second storage chamber, and the shell has one end portion. The lid housing has a cable clamp having a bottom plate piece capable of opening and closing the other surface of the shell in conjunction with the lid housing on the other end side, which is flexibly connected to a part of the cylindrical portion. In a state where a protrusion protruding from one surface is provided on the tip end side, a dielectric of the coaxial cable is arranged in the square portion, and a bottom plate piece of the cable clamp closes the other surface of the shell. The ridges press the dielectric against a pair of pressure welding blades to pressure contact the contacts to the center conductor.

(2) The lid housing has a curved portion recessed from one surface on the base end side, and the curved portion has the tip of the dielectric of the coaxial cable at the center of the second accommodating chamber. It is preferable to be able to guide.

(3) The cable clamp crimps the square portion via a pair of conductor barrels capable of crimping the outer conductor, a pair of insulation barrels capable of crimping the insulating sheath, and a pair of extending pieces. It preferably contains a pair of free crimp barrels.

Coaxial connectors according to the invention are provided with ridges in the lid housing that allow the dielectric to be pressed against a pair of pressure welding blades and the contacts to be pressure welded to the center conductor when the cable clamp is closed on the other side of the shell. Therefore, the process of pressure welding of the central conductor and the process of bending the shell can be unified.

It is a perspective view which shows the structure of the coaxial connector by one Embodiment of this invention, FIG. 1 (A) is a state figure which looked at the coaxial connector which connected the terminal of the coaxial cable from the front side, and FIG. It is the state figure which looked at the coaxial connector which connected the terminal of the coaxial cable from the back side. 2A and 2B are perspective views showing the configuration of the coaxial connector according to the above embodiment, FIG. 2A is a state view of the coaxial connector before connecting the end of the coaxial cable from the front side, and FIG. 2B is coaxial. It is the state figure which looked at the coaxial connector before connecting the terminal of a cable from the back side. It is a perspective exploded assembly drawing which shows the structure of the coaxial connector by the said embodiment. It is a perspective view which shows the structure of the coaxial connector by the said embodiment, and is the state diagram which arranged the terminal of the coaxial cable before connecting to a coaxial connector. 5A and 5B are front views of the housing, FIG. 5B is a plan view of the housing, and FIG. 5C is a view showing a configuration of a housing with contacts provided in the coaxial connector according to the above embodiment. A bottom view of the housing, FIG. 5D is a right side view of the housing, and FIG. 5D is a left side view of the housing. It is a vertical sectional view which shows the structure of the coaxial connector by the said embodiment, FIG. 6A is a state figure before crimping a plurality of barrels provided in a coaxial connector, and FIG. It is the state figure which crimped the barrel of. It is a perspective view which shows the assembly process of the coaxial connector by the said embodiment, FIG. 7A is a state figure which connected the base end part of the coaxial connector to a carrier, and FIG. 7B is the base end part of a coaxial connector. 7 (C) is a state diagram in which the coaxial cable is cut to a fixed size, and FIG. 7 (D) is a state diagram in which the outer conductor and the insulating sheath are peeled off from the end face of the coaxial cable at a predetermined length. FIG. 7 (E) is a state diagram in which the terminal-processed coaxial cable is set in the coaxial connector, FIG. 7 (F) is a state diagram in which the cable clamp is bent with respect to the shell, and FIG. 7 (G) is a state diagram. , It is a state diagram which crimped a plurality of barrels provided in a cable clamp. It is a figure which shows the structure of the coaxial connector by the prior art, FIG. 8 (A) is the plan view of the coaxial connector which showed the main part in the cross-sectional view, and FIG. 8 (C) is a right side view of the coaxial connector whose main part is shown in a vertical cross-sectional view. 9A and 9B are a plan view of a contact, FIG. 9B is a front view of the contact, and FIG. 9C is a diagram showing a configuration of a contact provided in a coaxial plug constituting a coaxial connector according to the prior art. Is a right side view of the contact. It is a vertical sectional view which shows the structure of the coaxial plug which constitutes the coaxial connector by the prior art, and is the state figure which opened a part of a shell and a part of a housing.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[Coaxial connector configuration]
First, the configuration of the coaxial connector according to the embodiment of the present invention will be described. In addition, since the components having the same reference numerals as those used in the prior art have the same operation, the following description may be omitted.

(overall structure)
Referring to FIGS. 1 to 6, the coaxial connector 10 according to the embodiment of the present invention can connect the terminal of the coaxial cable Cb. The coaxial connector 10 includes a bellows-shaped contact 1, a front-circle-rear-shaped housing 2, and a conductive shell 3. Further, the housing 2 has a strip-shaped lid housing 21. Further, the shell 3 has a cable clamp 31.

Referring to FIGS. 3 to 5, the contact 1 can electrically connect the coaxial cable Cb to the other side contact (not shown). The contact 1 has a top plate 11t formed in a substantially rectangular shape and a pair of contact pieces 11s and 11s. The pair of contact pieces 11s and 11s are curved from both sides of the top plate 11t, and the tip end side is opened in an Ω shape. The pair of contact pieces 11s and 11s can introduce a contact on the other side (not shown) inside.

Referring to FIG. 3 or FIG. 5, the pair of contact pieces 11s and 11s have a pair of contacts arranged to face each other at the tip portion. When a contact on the other side (not shown) is introduced inside the pair of contact pieces 11s / 11s, the pair of contacts can come into contact with the outer circumference of the contact on the other side (not shown).

Further, referring to FIGS. 3 to 5, the contact 1 has a pair of pressure welding blades 11d and 11d. The pair of pressure contact blades 11d and 11d stand upright from the top plate 11t in the direction opposite to the protruding direction of the pair of contact pieces 11s and 11s. Further, in the pair of pressure welding blades 11d and 11d, their blade surfaces are separated by a predetermined distance.

With reference to FIGS. 3 to 5, when the dielectric Di constituting the coaxial cable Cb is introduced between the pair of pressure welding blades 11d and 11d (see FIG. 4), a part of the outer periphery of the dielectric Di can be cut. .. Then, the pair of pressure contact blades 11d and 11d can come into contact with the center conductor Wc (see FIG. 6).

Referring to FIG. 3 or FIG. 5, housing 2 has a disk portion 22 and a square portion 23. A part of the square portion 23 protrudes from the disk portion 22 in the outer peripheral direction. The disk portion 22 has a first storage chamber 221 in the central portion (see FIG. 1 (B) or FIG. 5 (C)).

Referring to FIG. 1 (B) or FIG. 5 (C), the first accommodation chamber 221 has a rectangular opening on one surface of the housing 2 so that a mating contact (not shown) can be introduced. A pair of contact pieces 11s and 11s are arranged inside the first storage chamber 221.

Further, referring to FIGS. 3 to 5, the housing 2 has a second accommodation chamber 222 opened in a U shape on the other surface. The inner part of the second accommodation chamber 222 communicates with the first accommodation chamber 221. Referring to FIG. 3, the contact 1 can be introduced into the inner part of the second accommodation chamber 222 from the protruding direction of the pair of contact pieces 11s and 11s.

Referring to FIGS. 1 to 4, the shell 3 has a cylindrical portion 32 and a pair of extending pieces 33.33. The cylindrical portion 32 can accommodate the disk portion 22 of the housing 2 from the same direction in which the pair of contact pieces 11s and 11s project toward one surface of the cylindrical portion 32.

Referring to FIGS. 1 to 4, in the pair of extending pieces 33 and 33, a part of the outer periphery of the cylindrical portion 32 is continuously extended substantially in parallel. Then, the square portion 23 of the housing 2 can be accommodated in the pair of extending pieces 33 and 33 (see FIG. 3 or FIG. 5).

Referring to FIG. 5A or FIG. 6, one end of the lid housing 21 is flexibly connected to a part of the disk portion 22 by a hinge 21h. The lid housing 21 can open and close the second storage chamber 222 on the other end side (see FIG. 3 or FIG. 5B).

Referring to FIGS. 1 to 3, the cable clamp 31 has a bottom plate piece 311. One end of the bottom plate piece 311 is flexibly connected to a part of the cylindrical portion 32 by a hinge 31h (see FIG. 3 or FIG. 6). Further, the bottom plate piece 311 can open and close the other surface of the shell 3 in conjunction with the lid housing 21 on the other end side (see FIG. 4 or FIG. 6).

Referring to FIGS. 2 to 4, the lid housing 21 has a ridge 211 on the tip side. The ridge 211 projects from one surface of the lid housing 21.

With reference to FIG. 4, the dielectric Di of the coaxial cable Cb is placed in the square portion 23 of the housing 2, and the bottom plate piece 311 of the cable clamp 31 closes the other surface of the shell 3 (FIG. 1 or 6). (See), the ridge 211 can press the dielectric Di toward the pair of pressure welding blades 11d and 11d (see FIG. 4) to press contact the contact 1 to the center conductor Wc (see FIG. 6).

In the coaxial connector 10 according to the embodiment, in a state where the cable clamp 31 closes the other surface of the shell 3, the dielectric Di is pressed toward the pair of pressure welding blades 11d and 11d, and the contact 1 is pressure-welded to the center conductor Wc. Since the ridge 211 that can be formed is provided in the lid housing 21, the process of pressure welding the center conductor and the process of bending the shell can be unified.

(Contact composition)
Next, the configuration of the contact 1 according to the embodiment will be described. Referring to FIGS. 3 to 5, the contact 1 is preferably made of a conductive metal plate, and a pressure-welded connection type contact having a desired shape can be obtained by punching the conductive metal plate. can. The contact 1 is preferably made of a copper alloy, but is not limited to the copper alloy.

Referring to FIGS. 3-5, the contact 1 further comprises a pair of ridge pieces 11p, 11p. These ridge pieces 11p / 11p stand up from other sides adjacent to both sides of the top plate 11t in the direction opposite to the protruding direction of the pair of contact pieces 11s / 11s.

When the pair of ridge pieces 11p / 11p are housed in the second storage chamber 222 of the housing 2 with reference to FIG. 3, the pair of ridge pieces 11p / 11p can position the contact 1 in the housing 2 (FIG. 5 (FIG. 5). B) See).

(Housing and lid housing configuration)
Next, the configuration of the housing 2 and the lid housing 21 according to the embodiment will be described. Referring to FIG. 3 or FIG. 5, the housing 2 and the lid housing 21 are preferably made of an insulating synthetic resin, and the housing 2 with the lid housing 21 having a desired shape is formed by molding the synthetic resin having an insulating property. Obtainable.

With reference to FIG. 3 or FIG. 5, a top plate 11t can be placed on the bottom surface of the second storage chamber 222. With reference to FIG. 3 or FIG. 5, when the top plate 11t is placed on the bottom surface of the second storage chamber 222, the pair of ridge pieces 11p and 11p can position the contact 1 on the housing 2.

Referring to FIGS. 2 to 4, the square portion 23 of the housing 2 has a groove portion 223 recessed in a U shape. The groove portion 223 can accommodate the terminal of the coaxial cable Cb. More specifically, the groove portion 223 can accommodate the terminally processed outer conductor Wb (see FIG. 6).

Referring to FIGS. 2 to 4, the lid housing 21 has a curved portion 212 on the proximal end side. The curved portion 212 is recessed from one surface of the lid housing 21.

With reference to FIG. 4, the dielectric Di of the coaxial cable Cb is placed in the square portion 23 of the housing 2, and the bottom plate piece 311 of the cable clamp 31 closes the other surface of the shell 3 (FIG. 1 or 6). (See), the curved portion 212 can guide the tip end portion of the dielectric Di of the coaxial cable Cb to the central portion of the second housing chamber 222.

(Structure of shell and cable clamp)
Next, the configuration of the shell 3 and the cable clamp 31 according to the embodiment will be described. With reference to FIG. 2 or FIG. 3, the shell 3 and the cable clamp 31 are made of a conductive metal plate, and a conductive developing plate processed into a predetermined outer shape is formed into a desired shape. It is preferable to obtain the shell 3 with the cable clamp 31. With reference to FIG. 2 or FIG. 3, it is preferable that the shell 3 is formed by bending a developing plate having conductivity to form a cylindrical portion 32 and a pair of extending pieces 33 and 33.

Further, with reference to FIGS. 2 to 4, it is preferable that the cable clamp 31 is bent and molded with the pair of conductor barrels 31c and 31c and the pair of insulation barrels 31i and 31i opened. Further, it is preferable that the pair of insulation barrels 31i and 31i are bent and molded in a state where they are arranged so as to face each other.

Referring to FIGS. 2-4, the cable clamp 31 includes a pair of conductor barrels 31c / 31c and a pair of insulation barrels 31i / 31i. The pair of conductor barrels 31c and 31c can crimp the outer conductor Wb (see FIG. 6B). The pair of conductor barrels 31c and 31c can electrically connect the outer conductor Wb and the shell 3.

Referring to FIGS. 2 to 4, the pair of insulation barrels 31i and 31i can crimp the insulating sheath Wi. Then, the pair of insulation barrels 31i and 31i can fix the coaxial connector 10 to the terminal of the coaxial cable Cb (see FIG. 6B).

Referring to FIGS. 2-4, the cable clamp 31 further includes a pair of crimp barrels 31a, 31a. The pair of crimp barrels 31a and 31a can crimp the square portion 23 via the pair of extending pieces 33 and 33 (see FIG. 1 or FIG. 6B).

[Action of coaxial connector]
Next, the operation and effect of the coaxial connector 10 according to the embodiment will be described while explaining the assembly process of the coaxial connector 10 according to the embodiment.

First, referring to FIG. 7A, the housing 2 with the contact 1 is assembled into the unfolded shell 3 in a state where the tip of the unfolded cable clamp 31 is connected to the strip-shaped carrier C. Next, referring to FIG. 7B, the coaxial connector 10 is disconnected from the carrier C.

On the other hand, referring to FIG. 7C, the coaxial cable Cb is cut to a fixed size in advance. Next, referring to FIG. 7 (D), the insulating sheath Wi is peeled off from the end face of the coaxial cable Cb by a predetermined length. Further, the outer conductor Wb is peeled off from the end face of the coaxial cable Cb at a predetermined length. In this way, the coaxial cable Cb is terminally processed in advance.

Next, with reference to FIG. 7 (E), the dielectric Di of the coaxial cable Cb terminally processed is arranged in the square portion 23 of the housing 2 by using a jig or a machine (not shown) (see FIG. 4). In the state shown in FIG. 7 (E), the cable clamp 31 stands up against the shell 3.

Next, as shown in FIG. 4, the cable clamp 31 is bent from the state in which the cable clamp 31 stands up against the shell 3 toward the other surface of the shell 3.

With reference to FIG. 7F, when the bottom plate piece 311 of the cable clamp 31 closes the other surface of the shell 3, the ridges 211 of the lid housing 21 make the dielectric Di into a pair of pressure welding blades 11d and 11d. The contact 1 can be pressure-welded to the center conductor Wc by pressing it toward it (see FIG. 4) (see FIG. 6). As a result, the contact 1 and the coaxial cable Cb can be reliably and mechanically and electrically connected.

Next, with reference to FIG. 1 or FIG. 6B, the pair of crimp barrels 31a and 31a are crimped to the square portion 23 via the pair of extending pieces 33 and 33, whereby the contact 1 is in a pressure-welded state. Can be maintained.

Further, by crimping the pair of conductor barrels 31c and 31c to the outer conductor Wb with reference to FIG. 1 or FIG. 6B, the outer conductor Wb and the shell 3 can be electrically connected. Further, by crimping the pair of insulation barrels 31i and 31i to the insulating sheath Wi with reference to FIG. 1 or FIG. 6B, the coaxial connector 10 can be fixed to the terminal of the coaxial cable Cb. Then, a series of assembly work is completed (see FIG. 7 (G)).

As described above, the coaxial connector according to the present invention has "coaxial cable sizing cut"-> "coaxial cable terminal processing (cable strip)"-> "(shell bending) + (housing lid closed) + (center conductor pressure welding)"-> The harness has been completed through the process of "external conductor pressure welding".

In the coaxial connector 10 according to the embodiment, in a state where the cable clamp 31 closes the other surface of the shell 3, the dielectric Di is pressed toward the pair of pressure welding blades 11d and 11d, and the contact 1 is pressure-welded to the center conductor Wc. Since the ridge 211 that can be formed is provided in the lid housing 21, the process of pressure welding the center conductor and the process of bending the shell can be unified.

Further, referring to FIG. 4, in the coaxial connector 10 according to the embodiment, the dielectric Di of the coaxial cable Cb is arranged in the square portion 23 of the housing 2, and the bottom plate piece 311 of the cable clamp 31 forms the other surface of the shell 3. In the closed state (see FIG. 1 or FIG. 6), the curved portion 212 can guide the tip end portion of the dielectric Di of the coaxial cable Cb to the central portion of the second housing chamber 222.

INDUSTRIAL APPLICABILITY The present invention can provide a coaxial connector that improves production efficiency and reduces manufacturing costs by reducing assembly steps.

1 Contact 2 Housing 3 Shell 10 Coaxial connector 11s / 11s Pair of contact pieces 11t Top plate 11d / 11d Pair of pressure welding blades 21 Lid housing 22 Disc part 23 Square part 31 Cable clamp 32 Cylindrical part 33/33 Pair of extending pieces 211 Protrusion Cb Coaxial Cable Di Dielectric Wb External Conductor Wc Center Conductor Wi Insulation Sheath

Claims (3)

A coaxial connector for connecting a central conductor, a dielectric surrounding the central conductor, an outer conductor covering the dielectric, and a coaxial cable terminal having an insulating sheath covering the outer conductor.
A pair of contact pieces that are curved from both sides of the top plate and have a Ω-shaped opening on the tip side so that the contact on the other side can be introduced inside, and the top plate in a direction opposite to the protruding direction of the pair of the contact pieces. A contact with a pair of pressure-welded blades that stand up from the blade and are separated from each other.
A disk portion having a first accommodating chamber in which one surface is opened so that a contact on the other side can be freely introduced and a pair of the contact pieces are arranged inside, and a square portion partially protruding from the disk portion in the outer peripheral direction. A front circular rear shape having a portion, a part of which communicates with the first accommodating chamber, and a second accommodating chamber into which the contact and the dielectric can be introduced from the protruding direction of the contact piece is opened on the other surface. With the housing
From the same direction as the direction in which the pair of the contact pieces protrude, a cylindrical portion capable of accommodating the disk portion and a part of the outer circumference of the cylindrical portion continuously extend substantially in parallel toward one surface. A conductive shell having a pair of extending pieces capable of accommodating the square portion therein.
The housing has a strip-shaped lid housing in which one end portion is flexibly connected to a part of the disk portion and the other end portion side can open and close the second storage chamber.
The shell has a cable clamp having a bottom plate piece that flexibly connects one end to a portion of the cylinder and the other end interlocks with the lid housing to open and close the other surface of the shell. ,
The lid housing has a ridge protruding from one surface on the tip end side.
With the dielectric of the coaxial cable placed in the square and the bottom plate piece of the cable clamp closing the other side of the shell, the ridge presses the dielectric against the pair of pressure welding blades. A coaxial connector in which the contact is pressure-welded to the center conductor. The lid housing has a curved portion recessed from one surface on the proximal end side.
The coaxial connector according to claim 1, wherein the curved portion can guide the tip end portion of the dielectric of the coaxial cable to the central portion of the second accommodation chamber. The cable clamp is
A pair of conductor barrels capable of crimping the outer conductor,
A pair of insulation barrels that can crimp the insulating sheath,
The coaxial connector according to claim 1 or 2, comprising a pair of crimp barrels capable of crimping the square portion via the pair of extending pieces.

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