JP3041326U - Potential treatment device having relay connector protective cover - Google Patents

Abstract

(57) Abstract: To prevent dielectric breakdown due to leakage current generated in a relay connector portion for connecting a treatment device body of an electric potential treatment device and a treatment conductor, and prevent incomplete contact of the relay connector. A protective cover is provided around a relay connector portion where a relay jack and a relay plug, which are provided at the tip of a relay cord extending from a treatment device body and a treatment conductor, are electrically connected to each other. Cover. The protective cover has a holding portion for fixing the relay jack and the relay plug.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a potential treatment device for generating a high voltage, and more particularly to a relay connector protection cover that protects and insulates a relay connector of a cord for connecting a treatment device body and a treatment conductor.

[0002]

[Prior art]

 In the conventional electric potential treatment device, a relay connector is provided in the cord for connecting the treatment device main body and the treatment guide to facilitate the handling during storage. This relay connector can be easily inserted and removed and separated.

FIG. 7 shows a cross-sectional view of a relay connector of a cord for connecting a treatment device body and a treatment conductor in a conventional electric potential treatment device. The treatment device main body and the treatment guide each have a relay jack 2 and a relay plug 3 provided at the tip of a relay cord 1 extending therefrom. The relay jack 2 is composed of a jack terminal 4, and the relay plug 3 is composed of a plug terminal 5, the outer shells of which are insulated by an insulating material to prevent generation of leakage current. The relay jack 2 and the relay plug 3 are connected in a fitted state as shown in FIG. 8, whereby the treatment device main body and the treatment guide are electrically connected.

[0004]

[Problems to be solved by the device]

 In the conventional relay connector having the configuration shown in FIG. 8, it is not possible to secure a sufficient creepage distance from the connection portion of the jack terminal 4 and the plug terminal 5 to the ground (earth), and even if insulated by the insulating material, Considering the handling of voltage, it was not safe enough. That is, moisture (moisture), salt, dust in the air, conductive powder (generated by abrasion of the jack terminal 4 and the plug terminal 5 being attached and removed), etc. adhered to the outer surfaces of the relay jack 2 and the relay plug 3. In this case, more leakage current than usual flows to the ground (earth), and the Joule heat generated at this time carbonizes the surface of the insulating material, causing dielectric breakdown.

[0005] Furthermore, the connection holding force of the relay connector decreases due to repeated insertion / removal of the relay jack 2 and the relay plug 3, and the relay connector may come off during use of the treatment device. Connection failure) had occurred. Corona discharge between the jack and plug terminals caused by this imperfect contact also causes dielectric breakdown of the insulating material.

When dielectric breakdown of the insulating material occurs, more leakage current flows through that portion, and as a result, a conductive path (track) from the relay connector connecting portion to the outside (ground) is formed. . Local discharges repeatedly occurred on this conductive path, and the heat generated as a result caused fire and electric shock.

In order to solve the above problems, an object of the present invention is to provide a relay connector protection cover that prevents a leakage current generated in a relay connector unit in an electric potential therapy apparatus and that is less likely to cause incomplete contact. It is in.

[0008]

[Means for Solving the Problems]

 In the potential treatment device of the present invention, the supply of the treatment potential from the main body of the potential treatment device for generating a high voltage to the treatment guide extends from the treatment device main body and the treatment guide to the tip of each relay cord. In a potential treatment device that is performed via a relay connector that is composed of a relay jack and a relay plug provided in the relay connector, a protective cover that is detachable from the relay connector and that covers the entire circumference of the relay connector and that is made of a high insulating material It has a holding part for fixing the relay jack and the relay plug respectively inside the cover.

Further, the protective cover for covering the relay connector is characterized in that the holding portion is a synthetic resin molded body integrally formed in a rib shape.

Further, the protective cover that covers the relay connector is divided into a tubular member and a portion having a holding portion, and the portion having the holding portion has a screw shape, and the portion having the holding portion is the relay jack. It is characterized in that the relay jack and the relay plug are held by being screwed into the tubular member after being attached to the relay plug and the relay plug, respectively.

Further, the protective cover for covering the relay connector is divided into two parts each having a holding portion, and each is preliminarily attached to the relay cord.

Further, a space is provided between the relay connector and the protective cover.

[0013]

[Embodiment of the invention]

 Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a relay connector portion provided at a tip portion of a cord extending from a treatment device body and a treatment guide in a potential treatment device according to a first embodiment of the present invention.

The treatment device main body and the treatment guide are connected by a relay jack 2 and a relay plug 3 provided at the tip of a relay cord 1 extending from each. The relay jack 2 is composed of a jack terminal 4, the relay plug 3 is composed of a plug terminal 5, and their outer shells are insulated by a highly insulating material. In the embodiment of the present application, the entire periphery of the relay connector portion is covered with the protective cover 6 having the holding portion 7. By covering the entire circumference of the relay connector section with this protective cover 6, it is possible to prevent moisture and dust from the outside from entering the relay connector section. Further, since the protective cover 6 creates a space around the relay connector portion, it is possible to secure a sufficient space distance and creepage distance from the relay connector contact portion to the ground (earth). Therefore, even if a relay connector with a dielectric breakdown is used, the dielectric breakdown does not proceed any further, and damage due to subsequent fire or electric shock can be minimized.

2 and 3 are perspective views of the protective cover 6 of the relay connector portion of the present embodiment. The protective cover 6 is provided with a holding portion 7 for fixing the relay jack 2 and the relay plug 3 respectively, and by the holding portion 7, the relay jack 2 and the relay plug 3 are fixed, respectively. This prevents incomplete contact between the relay jack 2 and the relay plug 3 due to disconnection when an external force is applied to the relay connector section.

The protective cover 6 is attached so as to completely cover the entire circumference of the relay connector portion as shown in FIG. The protective cover 6 is a synthetic resin molded body in which the holding portion 7 is integrally formed in a rib shape. Use a flame-retardant synthetic resin that has high electrical properties such as arc resistance.

FIG. 4 is a perspective view of a relay connector portion in the electric potential treatment apparatus according to the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the upper and lower sides of the protective cover are not separated but are integrally formed. Since the other parts are the same as those in the first embodiment, the description thereof will be omitted. When the upper and lower parts are integrated as in this embodiment, the protective cover can be easily attached and the protective cover can be prevented from being lost.

FIG. 5 is a perspective view (a) and a cross-sectional view (b) of the relay connector portion in the electric potential treatment apparatus according to the third embodiment of the present invention. In the device of this embodiment, the protective cover 6 is divided into a tubular member and a portion having a holding portion 7, and the portion having the holding portion 7 is attached to the relay jack 2 and the relay plug 3 beforehand. It is characterized in that it is screwed into the member. According to this embodiment, the relay plug and the relay jack can be held more firmly, and incomplete contact at the relay connector portion can be prevented.

FIG. 6 is a perspective view (a) and a cross-sectional view (b) of the relay connector portion in the electric potential treatment apparatus according to the fourth embodiment of the present invention. The present embodiment is characterized in that the protective cover 6 is divided into two parts, each of which is attached to the relay cord 1 in advance and the protective cover is fitted to hold the relay jack 2 and the relay plug 3. And By carrying out this embodiment, in addition to the same effects as those of the other embodiments described above, there is an effect that the protection cover 6 is not lost.

[0020]

EFFECTS OF THE INVENTION By using a protective cover in the relay connector portion for connecting the treatment device body and the treatment conductor in the electric potential treatment device, relay of moisture (moisture), salt, atmospheric dust, etc. from the outside It is difficult for the relay cover to enter the connector portion, and the holding portion of the protective cover fixes the relay plug and the relay jack to prevent incomplete contact at the relay connector portion.

Further, even with respect to the relay connector in which the insulation breakdown has occurred, it is possible to sufficiently secure the space distance and the creepage distance between the ground (earth) and the relay connector portion, so that the generation of leakage current can be suppressed. It is possible to suppress damage such as fire and electric shock due to heat.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a relay connector unit according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a relay connector unit according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a relay connector unit according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a relay connector unit according to a second embodiment of the present invention.

FIG. 5 is a perspective view (a) and a sectional view (b) of a relay connector portion according to a third embodiment of the present invention.

FIG. 6 is a perspective view (a) and a sectional view (b) of a relay connector section according to a fourth embodiment of the present invention.

FIG. 7 is a cross-sectional view of a conventional relay connector section.

FIG. 8 is a cross-sectional view of a conventional relay connector section.

[Explanation of symbols]

 1 relay cord 2 relay jack 3 relay plug 4 jack terminal 5 plug terminal 6 protective cover 7 holding part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H01R 13/639 9173-5B H01R 13/639 Z

Claims (5)

[Utility model registration claims] 1. A relay for supplying a therapeutic potential from a main body of an electric potential treatment device for generating a high voltage to a treatment guide provided at a tip portion of each relay cord extending from the treatment device main body and the treatment guide, respectively. In a potential treatment device performed via a relay connector including a jack and a relay plug, a protective cover that is detachable from the relay connector and that is made of a high insulating material that covers the entire circumference of the relay connector, and the protective cover An electric potential treatment device comprising: a holding portion for fixing the relay jack and the relay plug, respectively. 2. The electric potential treatment apparatus according to claim 1, wherein
The electric potential therapy apparatus, wherein the protective cover covering the relay connector is a synthetic resin molded body in which the holding portion is integrally formed in a rib shape. 3. The electric potential therapy apparatus according to claim 1, wherein
The protective cover that covers the relay connector is divided into a tubular member and a portion having a holding portion, and the portion having the holding portion has a screw shape. An electric potential treatment device characterized in that the relay jack and the relay plug are held by being screwed into the tubular member after being attached to the relay plugs respectively. 4. The electric potential treatment apparatus according to claim 1, wherein
The electric potential treatment device characterized in that the protective cover for covering the relay connector is divided into two parts having the holding part, each of which is attached to the relay cord in advance. 5. The electric potential treatment apparatus according to claim 1, wherein
An electric potential therapy apparatus comprising a space between the relay connector and the protective cover.