JPH04115765U - DC connector - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to prevent accidents and electric shocks caused by incorrect polarity of DC connectors. [Structure] A power feeding surface electrode, a pair of back electrodes made of a good conductive metal that are removably provided on the back side of the power feeding surface electrode and electrically connected to a DC source, each of the back electrodes and the power feeding surface. an outlet section comprising a spring that applies a repulsive force to separate the electrodes from each other; and a pair of permanent magnets associated with each of the back electrodes with their N and S poles facing the power feeding surface electrode. , and a plug part provided with a pair of permanent magnets on the back side of the power receiving surface electrode, the S pole and the N pole of which are attracted to each other with the pair of permanent magnets of the outlet part facing toward the power receiving surface electrode side. Becomes,
The attractive force between the permanent magnet of the outlet portion and the permanent magnet of the plug portion is set to be stronger than the repulsive force of the spring.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention supplies DC from a DC source to the load side through the outlet and plug. This invention relates to DC connectors.

0002

[Conventional technology]

In recent years, due to global environmental issues, high-power photovoltaic power is generated by installing it outdoors. There are great expectations for solar cells. As a familiar application, a typical household store A concept has been proposed in which solar cells will be installed on the roots and the power generated will cover most of the daytime power consumption. It is currently being put into practical use, albeit on a partially experimental basis.

0003 In such a case, the power from the solar cells installed on the roof is used to power the air conditioners inside the house. A connector is essential between the solar cells and the load.

0004

[Problem that the idea aims to solve]

When using DC from a solar cell etc. as the connector, make sure to connect the wrong polarity. This may lead to accidents such as damage to the load.

[0005]

[Means to solve the problem]

The present invention was developed in view of these issues, and it The main components are a pair of power supply surface electrodes made of electrically conductive metal; A pair of power-receiving surfaces made of a good conductive metal that face and contact the surface electrodes of the outlet. consisting of a plug portion having an electrode, The outlet part is provided on the back side of each power feeding surface electrode so that it can be connected to and separated from it, A pair of back electrodes made of a good conductor metal electrically connected to a DC source, and each back electrode. A spring that applies repulsive force to separate the pole and the power feeding surface electrode, and A pair of surface electrodes associated with each other with their N and S poles facing the power supply surface electrode side. A permanent magnet is provided. A pair of permanent magnets in the outlet part are attached to the back side of the power receiving surface electrode of the plug part. A pair of permanent magnets that attract each other with their S and N poles facing the receiving surface electrode. is provided, The attraction force between the permanent magnet in the outlet section and the permanent magnet in the plug section is determined by the above spring. The repellency is set to be stronger than that of the ring.

[0006]

[Effect]

The outlet will only work if the plug is brought close to the outlet with the correct polarity. The attraction force between the magnet in the outlet and the magnet in the plug generates electricity on the power supply surface of the outlet. DC power is supplied from the pole to the power receiving surface electrode of the plug section.

[0007]

【Example】

Figures 1 and 2 are cross-sectional views of the DC connector of the present invention, with Figure 1 in the separated state and Figure 2 in the separated state. Indicates connection status. In these figures, 1 is a DC power source such as a solar cell (Fig. 2 is connected to a load such as an air conditioner (not shown). This is the plug part. 3 and 3 are provided opposite to the plug part 2 side of the outlet part 1. The positive and negative power supply surface electrodes are made of a highly conductive metal plated with nickel. has been completed. 4, 4 are provided on the back side of the power feeding surface electrodes 3, 3 so as to be able to come into contact with and separate from them. DC from a DC power source is connected to the back electrode made of a good conductor metal. child The back electrodes 4, 4 and the front electrodes 3, 3 are coils mechanically connected to the back electrodes 4, 4. They are electrically separated by the biasing force of springs 5, 5. Therefore in this state DC from the DC power source is not supplied to the power supply surface electrodes 3, 3, and even if accidentally There is no problem even if the power supply surface electrodes 3, 3 are touched or short-circuited. 6, 6 are power supply permanent magnets attached to the back side of the back electrodes 4 and 4, and each has a magnetic force of N pole. rays and S-pole magnetic field lines are radiated toward the surface electrodes 3, 3 side.

[0008] 7, 7 are + and - power receiving surfaces provided on the plug part 2 facing the outlet part 1 side The electrode is a high-quality one with nickel plating, etc., similar to the power supply surface electrodes 3 and 3 described above. Constructed from conductive metal. And these power receiving surface electrodes 7, 7 are used for air conditioners, etc. electrically connected to the load. On the back side of the power receiving surface electrodes 7, 7, the above-mentioned Attracts each other with the power supply permanent magnets 6, 6 attached to the back electrodes 4, 4 of the cent part 1. Power-receiving permanent magnets 8, 8 radiating the S-pole magnetic field line and the N-pole magnetic field line are attached. ing.

[0009] What is important in this invention is that the power receiving permanent magnets 8, 8 and the power feeding permanent magnets The attraction force acting between the coil springs 5, 5 and the power supply surface electrode 3, 3 and the back electrodes 4, 4 are set to be stronger than the repelling force that separates them from each other. Ru. In other words, as shown in Figure 2, connect the plug to the outlet section 1 with the + and - polarities in the correct direction. When the connecting part 2 is brought close, the power supply permanent magnets 6, 6 coil the power receiving permanent magnets 8, 8. The back electrodes 4, 4 of the outlet part 1 are used for suction against the repulsive force of the springs 5, 5. is in contact with the back side of the power supply surface electrodes 3, 3, and at the same time the surface of the surface electrodes 3, 3 It contacts the power receiving surface electrodes 7, 7 of the lug portion 2. Then, the back electrodes 4, 4 and the power supply surface electrode The poles 3, 3 and the power receiving surface electrodes 7, 7 are the permanent magnets 6, 6 and 8, 8, which act as absorbers. It is firmly integrated by gravity, and the DC from the DC power supply is connected to the outlet part 1 and It is supplied to the load via a connector constituted by the plug section 2.

0010 On the other hand, the plug part 2 was connected to the power supply surface electrodes 3 and 3 of the outlet part 1 by incorrectly changing the polarity of + and -. When the power-receiving surface electrodes 7, 7 of The back electrodes 4, 4 do not touch the back surfaces of the power feeding front electrodes 3, 3, and the outlet part 1 No electrical connection is made between the plug section 2 and the plug section 2.

[0011] Moreover, even if the plug part 2 is not close to the power supply surface electrode 3 of the outlet part 1, , 3, the back electrodes 4, 4 are not in contact with the back surfaces of the power supply surface electrodes 3, 3. There is no DC potential, and even if you touch the electrodes 3 and 3, you will not get an electric shock. is not connected.

0012 In addition, when separating the plug part 2 from the outlet part 1, both permanent magnets 6, 6 and 8. Just pull it apart with a force stronger than the suction force of 8.

[0013]

[Effect of the idea]

As is clear from the above explanation, the present invention is based on the permanent magnet installed in the outlet and the plug. Electrical connection and mechanical fixation are achieved by the attractive force that acts between the permanent magnet installed on the lug. At the same time, make sure to connect the plug to the outlet with the correct polarity. Only if they are brought close together, the attraction between the magnet in the outlet and the magnet in the plug will cause the DC power is supplied from the power supply surface electrode of the outlet section to the power reception surface electrode of the plug section. This is to prevent damage to the DC power supply or load due to incorrect connections, as well as electric shock accidents. I can do that.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the connector of the present invention in a separated state.

FIG. 2 is a sectional view showing a connected state of the connector of the present invention.

[Explanation of symbols]

1 Outlet part 2 Plug part 3 Power supply surface electrode 4 Back electrode 5 Coil spring 6 Power supply permanent magnet 7 Power receiving surface electrode 8 Power receiving permanent magnet

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Ichiro Yasui 2-18 Keihan Hondori, Moriguchi City Sanyo Electric Co., Ltd. Inside the ceremony company (72) Creator Shoji Sakaiya 2-18 Keihan Hondori, Moriguchi City Sanyo Electric Co., Ltd. Inside the ceremony company

Claims (1)

[Scope of utility model registration request] [Claim 1] A DC connector that supplies DC from a DC source to a load side via an outlet section and a plug section,
A plug that has an outlet section whose main components include a pair of power supply surface electrodes made of a good conductor metal exposed on the surface, and a pair of power receiving surface electrodes made of a good conductor metal that face and contact the surface electrodes of the outlet section. A pair of back electrodes made of a good conductive metal are provided on the back side of each power feeding surface electrode so as to be detachable from each other, and are electrically connected to a DC source. a spring that applies repulsive force to separate the back electrode and the power feeding front electrode;
Each back electrode is provided with a pair of associated permanent magnets with their N and S poles facing the power feeding surface electrode side, and the power receiving surface electrode of the plug section is provided with a pair of associated permanent magnets on the back side of the power receiving surface electrode of the outlet section. S pole and N pole attract each other with a pair of permanent magnets
A pair of permanent magnets are provided with their poles facing the power receiving surface electrode side, and the attractive force between the permanent magnet of the outlet section and the permanent magnet of the plug section is set to be stronger than the repulsive force of the spring. A DC connector characterized by: