JPH0359975A - High voltage connector - Google Patents

Abstract

PURPOSE:To prevent a brim section from being damaged and to positively mount a connector onto a mating connector by arranging a fastening force dispersing member between the second torsion element fastening member and the brim section. CONSTITUTION:A high voltage connector is equipped with a cable head 24 on the tip end side of which a terminal 22 is supported by a columnar resin member 23 furnished with a brim section 23a, a cap 26 acting as the first torsion element fastening means in a cylindrical shape coaxially arranged on the rear end side of said cable head 24, a torsion element 27 acting as the second torsion element fastening means arranged at 2 places on the cap 26 and with a spacer 30 acting as a fastening force dispersing member arranged between said torsion element 27 and the brim section 23a. When the high voltage connector 20 is mounted onto a mating connector, the cable head 24 is inserted first, then, the brim section 23a is fastened by the first torsion element fastening member 26. Successively, a fastening force dispersing member 30 is fastened by the second torsion element fastening member 27. Fastening force by the second torsion element fastening member 27 is dispersed by the fastening force dispersing member so that it is thereby transmitted to the whole of the brim section 23a. This constitution prevents the brim section 23a from being damaged, and also permits said connector to be thereby positively mounted onto the mating connector 5a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a high voltage connector for supplying high voltage from a high voltage generator to an X-ray tube device.

(Prior Art) A high voltage connector 1 shown in FIG. 4 is known as a high voltage connector 1 for supplying high voltage from a high voltage generator to an X-ray tube device.

FIG. 4 shows a case where the high voltage connector 1 is attached to the high voltage generator 5 of the high voltage generator and the X-ray tube device.

This high voltage connector 1 has a cylindrical resin member 3 with a terminal 2 disposed on the tip side and for protecting and supporting the terminal 2.
It has a cable head 4 with a. Furthermore, the resin member 3 has a flange 3a on the rear end side for the purpose of regulating the axial position of the terminal 2 with respect to the receptacle 5a, which is a mating connector. In addition, this high voltage connector l is
The high voltage cable 8 and the cable head 4 are connected by caulking a thin metal plate 9, and the metal plate 9 is configured to cover the collar portion 3a.

When attaching the high voltage connector 1 to the high voltage generator 5, the cable head 4 is first inserted into the receptacle 5a of the high voltage generator 5. Next, the cylindrical cap 6 disposed coaxially on the rear end side of the cable head 4 is turned and fastened to the collar 5b disposed on the high voltage generator 5, thereby tightening the collar portion 3a. However, simply turning this cap 6 does not connect the cable head 4 and the receptacle 5a completely, so the cable head 4 is further connected to the receptacle 5a.
The flange 3a is tightened by screws 7 placed at two locations on the cap 6 in order to press it against the cap 6.

(Problems to be Solved by the Invention) When the screw 7 is tightened, the tip of the screw 7 comes into contact with the metal plate 9 covering the collar 3a. However, since the metal plate 9 is thin so that it is suitable for caulking,
The tightening force of the screw 7 is locally applied to the collar portion 3a. However, the flange portion 3a is made of a resin material and has lower mechanical strength than metal. Therefore, there was a problem in that the flange portion 3a was easily damaged.

Therefore, the present invention has been made in view of the above circumstances, and
It is an object of the present invention to provide a high voltage connector that prevents damage to the flange and can be reliably attached to a mating connector.

[Structure of the Invention (Means for Solving the Problems)] In order to achieve the above object, the present invention includes inserting a cable head supporting a terminal by a resin member having a flange into a mating connector, After the flange is tightened and pressed against the mating connector side by the child tightening means, the flange is tightened and further pressed against the mating connector side by a second screw tightening means disposed on the first screw tightening means. The high voltage connector is characterized in that a tightening force diffusion member is provided between the second screw tightening means and the flange.

(for production) The operation of the apparatus having the above configuration will be explained below.

When this high voltage connector is attached to a mating connector, the cable head is first inserted, and the collar portion is tightened by the first screw tightening means. Next, the tightening force diffusion member is tightened by the second screw tightening means. The tightening force by this second screw tightening means is diffused by the tightening force diffusion member and transmitted to the entire collar portion.

(Example) Examples of the present invention will be described in detail below.

FIG. 1 is a sectional view of a high voltage connector 20 according to an embodiment of the present invention.

This high-voltage connector 20 includes a cable head 24 that supports a terminal 22 on the distal end side by a cylindrical resin member 23 having a flange 23a, and a cylindrical resin member 24 that is coaxially disposed on the rear end side of the cable head 24. A cap 26 as a first screw tightening means, a screw 27 as a second screw tightening means disposed at two places on the cap 26, and a space between the screw 27 and the flange 23a. It has a spacer 30 as a tightening force diffusion member disposed in the spacer 30.

The periphery of the collar portion 23a is covered with a thin metal plate 29 for connecting the high voltage cable 28 and the cable head 24 by caulking. Further, a ring-shaped rubber backing 25 is arranged below the flange 23a.

As explained in FIG. 4, the cap 26 includes a male threaded portion 26a that is screwed into the nut 5b of the high pressure generator 5, and a holding portion 26 that facilitates rotation of the cap 26.
It has b.

As shown in FIG. 2, the spacer 30 consists of a semicircular spacer 31 and a spacer 32 made of metal. The ends of these spacers 31 and 32 have step portions 31a and 32a whose cut surfaces coincide with each other, and the step portions 31a are as shown by arrows in the figure.

When 32a are put together, the whole is formed into a ring shape. Further, when receiving the tightening force from the screw 27, the lower surface 31b of the spacer 3o.

32b is flat so that the contact area with the flange 23a is large.

The operation of the high voltage connector 20 will be explained with reference also to FIG.

FIG. 3 is a sectional view showing how the high voltage connector 20 and the high voltage generator 5 are attached.

First, the cable head 24 is attached to the receptacle 5a of the high voltage generator 5.

Rotate the holding part 26b of the cap 26 by hand to remove the male screw part 26.
screw a into the nut 5b.

To further press the cable head 24 against the receptacle 5a, the screw 27 is tightened. The rubber backing 25 is deformed in the axial direction of the high voltage connector 20 by tightening the cap 26, thereby preventing oil leakage within the high pressure generator 5.

When the screw 27 is tightened, the tip of the screw 27 comes into contact with the spacer 30. Therefore, the tightening force exerted by the screw 27 is diffused by the spacer 30 and transmitted to the entire collar portion 23a. Therefore, damage to the flange portion 23a can be prevented. Furthermore, since there is no need to carefully tighten the screw 27, the workability of installing the high voltage connector is improved.

Further, since the spacer 30 has a divided structure, the spacer 30 can be easily attached and detached.

Although one embodiment has been described above, the present invention is not limited to this, and various modifications can be made without changing the gist thereof. For example, although the description has been made regarding the attachment of the high voltage connector to the high voltage generator, the present invention can be similarly applied to the case where the high voltage connector is attached to the X-ray tube apparatus. Further, although the spacer is made of metal, it may be made of non-metal as long as it has a rigidity close to that of metal. Further, although the spacer has a divided structure, it may be integrated into the high voltage connector as an integral ring.

[Effects of the Invention] According to the present invention described in detail above, since the tightening force diffusion member is disposed between the second screw tightening means and the flange, damage to the flange can be prevented. It is possible to provide a high voltage connector that can be reliably attached to a mating connector.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a high voltage connector according to an embodiment of the present invention, Fig. 2 is an external perspective view of a spacer, Fig. 3 is a sectional view showing the installed state of the high voltage connector shown in Fig. 1, and Fig. 4 FIG. 2 is a sectional view showing a conventional high voltage connector in an attached state. 5a... Receptacle (mating connector) 20... High voltage connector, 22... Terminal, 23... Resin member,
23a... Flange portion, 24... Cable head, 26... Cap (first screw tightening means) 27...
- Screw (second screw tightening means), 30... spacer (tightening force diffusion member).

Claims (1)

[Claims] After inserting the cable head with the terminal supported by the resin member including the flange into the mating connector and tightening the flange by the first screw tightening means and pressing it against the mating connector side,
In the high voltage connector, the flange is tightened by a second screw tightening means disposed on the first screw tightening means and further pressed against the mating connector side. A high voltage connector characterized in that a tightening force diffusion member is provided between the flange and the flange.