WO2005029651A1

WO2005029651A1 - Electric connection socket

Info

Publication number: WO2005029651A1
Application number: PCT/CN2003/001147
Authority: WO
Inventors: Zhicheng Shao
Original assignee: Zhicheng Shao
Priority date: 2003-09-22
Filing date: 2003-12-30
Publication date: 2005-03-31
Also published as: CN1527442A; CN100487988C; AU2003296218A1

Abstract

This invention relates to electric connection field, which is an electric connection socket. It can solve the following problem consisting in the present sockets. When a socket contacts with a plug, one electrode-connecting component will rub and slide on metal pins. Thus arc came into being with the electric contact, which result in oxidation damage to metal pins . Electric connection socket is composed of a body, the electri source-connecting component set in the body, at least one electrode-connecting component which is set on the body and able to slide in a slot, a conducting spring arm which connects the corresponding electric source-connecting component, a spring which connects the body with electrode-connecting components, sliver contacts which are set on the contacting point of the electrode-connecting component with the conducting spring arm. When electrode-connecting components slide toward and contact with the conducting spring arms by spring force, the spring make the electrode-connecting component bounce and separate from the conducting spring arm. When the electrode-connecting component is pressed and contacts with the conducting spring arm, arc will take place between the electrode-connecting component and the conducting spring arm, instead of metal pins and electrode-connecting component.

Description

Electrical connection socket

The invention belongs to the technical field of electrical connection, and is an electrical connection socket used in a liquid electric heater and including a base body, a power source connection piece, and an electrode connector. Background technique

Existing electrical connection sockets for liquid electric heaters include a base body, a power connector, and an electrode connector. The power connector and the electrode connector are arranged in the base. The power connector and the electrode connector are fixed together by riveting or welding in the base. The power connector is used for connection with the power cord, and the electrode connector is used for connection with the power cord. The other electric plug installed on the liquid container is connected. The electrode connector is a bent elastic metal sheet. When the metal pins of the electrical connector are in contact with it, the elastic metal sheet will be bent, and the elastic force generated after the bending is used to press on the metal pins to achieve the purpose of electrical contact. Because the elastic metal sheet is in frictional contact with the metal pins during the process of bending, it will cause an electric arc during electrical contact, and it will often be plugged, which will easily cause the contact parts to burn. Although silver contacts are provided on the elastic metal sheet to enhance its ability to resist arcing, silver contacts cannot be provided on metal pins. Frequent contact will cause uneven oxidation on a certain part of the metal pins. Oxidation will be aggravated in the later use process, which will lead to poor electrical contact until damage. The problem with the existing technology is that the service life is short. When the on-off current is 15 amps, the on-off life is often about 10,000 times. Summary of the invention

An object of the present invention is to provide an electrical connection socket that does not generate an arc when it is plugged into a metal pin of an electrical plug, has a long power on-off life, and is not prone to electric shock.

In order to achieve the purpose of the present invention, the electrical connection socket includes a base body, and a power connection member disposed in the base body. The base body is provided with at least one sliding electrode connector that can slide in its sliding groove. The corresponding power connector is provided with a conductive elastic arm. After the sliding electrode connector slides in the direction of the corresponding conductive elastic arm, the two can be elastically contacted. The sliding electrode connector is provided with a spring acting on the base body. The sliding electrode connector is popped up and separated from the conductive elastic arm. A contact point of the sliding electrode connector and the conductive elastic arm is provided with a silver contact.

Because the sliding electrode connector is provided in the base, the sliding electrode connector is normally disconnected from the power connection, and even if the sliding electrode connector is touched, it will not be electrocuted, which improves the safety of electrical appliances. When the metal pins of the electrical connector touch and press the sliding electrode connector to slide it toward the conductive spring arm, the sliding electrode connector is not energized until after contact, at this time, the arc is in contact with the sliding electrode connector on the conductive spring arm. It occurs between parts, and no arc occurs between the metal pins of the electrical connector and the sliding electrode connector. In this way, even if the contact portion between the metal pin and the sliding electrode connector is a copper material, no oxidation occurs. This structure can greatly increase the number of times of plugging in the electrical appliance, has a long service life, and improves the safety of the electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are illustrated as follows-Fig. 1 is a structural diagram of an electrical connection socket according to the present invention.

Fig. 2 is a cross-sectional view taken along A-A of Fig. 1.

Fig. 3 is a sectional view taken along the line B-B in Fig. 1.

FIG. 4 is a perspective structural view of an electrical connector. detailed description

The specific embodiments of the electrical connection socket of the present invention are described in further detail below with reference to the drawings:

As shown in FIGS. 1 to 3, the electrical connection socket of the present invention includes a base body 1, a power connector 2, a sliding electrode connector 3, a conductive spring arm 4, a spring 5, a silver contact 6, an electrode connector cover 7, and sliding Groove 8, outer end face 9 and inner end face 10.

The base 1 is made of plastic, and is provided with a power connector 2 and a socket 11. The power connector 2 is fixed in the socket 11 to facilitate connection with an external connector. The base body 1 is provided with an electrode connector cover 7 that can be flipped. Under normal circumstances, the electrode connector cover 7 covers the sliding electrode connector 3 insertion opening of the base body 1. As shown in FIG. 4, when the metal pin 12 of the electrical connector is inserted, it will first touch the electrode connector cover 7 to be pushed out, and then contact the sliding electrode connector 3 to achieve the connection.

The conductive elastic arm 4 is disposed perpendicular to the sliding direction of the sliding electrode connector 3, and one end of the conductive elastic arm 4 is welded to the power connector 2 and the other end is suspended and slid under the sliding electrode connector 3, and is separated from the sliding electrode connector 3. . Only when the sliding electrode connector 3 slides down a certain stroke can it be contacted. Of course, the conductive elastic arm 4 may also be fixed on the sliding electrode connector 3, and when the sliding electrode connector 3 slides, it slides, and then contacts and separates with the tail end of the power connector 2.

The sliding electrode connector 3 is made of a copper sheet, and upper ends thereof are bent to form an inner bent end face 10 and The outer bent end face 9 and the silver contact 6 are convenient for riveting and provided on the inner bent end face 10. When the inner bent end face 10 is in contact with the conductive elastic arm 4, the electrical contact resistance of the power connector 2 is enhanced.

Since the sliding electrode connector 3 is provided with an outer bending end surface 9, the spring 5 can be disposed between the outer bending end surface 9 and the base body 1, so that the outer bending end surface 9 keeps springing away from the base body 1, The inner bent end surface 10 and the conductive elastic arm 4 are in a separated state.

Since there are two power connections 2 in the base 1, there should be two electrode connectors. In the present invention, one electrode connector is the above-mentioned sliding electrode connector 3, and the other is an electrode connector which is directly connected to the power connector 2 in the prior art and is not shown in the figure. Alternatively, both of the electrode connectors may be the above-mentioned sliding electrode connector 3. In this embodiment, two power connection members 2, a sliding electrode connector 3, a conductive elastic arm 4, and a spring 5 are used. Only one of the contact points of the sliding electrode connector 3 and the conductive elastic arm 4 is provided with a silver contact 6. When the upper end surface of one of the sliding electrode connectors 3 is lower than the other, it is only necessary to set a silver contact 6 on the contact point between the sliding electrode connector 3 and the conductive elastic arm 4.

In addition, there is a sliding electrode connector 3 that can slide in another sliding groove 8. A conductive spring arm 4 is provided on the corresponding power connector 2. When the sliding electrode connector 3 is pressed at the end of the stroke, both Is in contact. The inner bent end surface 10 of the other sliding electrode connector 3 and the conductive elastic arm 4 are welded together or may not be connected together.

Actually, when the metal pins 12 of the electrical connector are inserted, firstly, they contact the outer bent end face 9 to set a high sliding electrode connector 3 to make it slide down, and firstly touch the conductive elastic arm 4, although the conductive elastic arm 4 and the sliding electrode There is no silver contact 6 between the contact parts of the connector 3, but there is no current between the two, so no arc occurs. An arc occurs only when a low sliding electrode connector 3 is provided on the upper end surface and then touches the conductive elastic arm 4 after sliding. Because the silver contact 6 is provided between the conductive spring arm 4 and the sliding electrode connector 3, the last connection point and the first separation point of the entire power-on circuit are concentrated on the silver contact 6, which can reduce the use of silver. Number of contacts 6. In the electrical connection socket of the present invention, the contact between the sliding electrode connector 3 and the conductive spring arm 4 is basically a positive contact, and there is almost no lateral friction sliding contact phenomenon, which greatly reduces the arc caused by poor contact. It is convenient to set silver contacts between the contact points. When the on-off current is 15 amps, the on-off service life is more than 40,000 times, and the service life is long.

Claims

An electrical connection socket, comprising a base body (1), a power connector (2) provided in the base body (1), characterized in that at least one sliding groove ( 8) a sliding electrode connector (3) sliding inside, and a conductive elastic arm (4) is provided on its corresponding power connector (2), and the sliding electrode connector

(3) The two can be elastically contacted after sliding in the direction of the corresponding conductive elastic arm (4). The sliding electrode connector (3) is provided with a spring (5) acting on the base (1), and the spring (5) slides The electrode connector (3) pops up and separates from the conductive elastic arm (4), and the contact point of the sliding electrode connector (3) and the conductive elastic arm (4) is provided with a silver contact (6).

2. The electrical connection socket according to claim 1, characterized in that two sliding electrode connectors (3) are provided in the base body (1), and one of the sliding electrode connectors (3) is connected to the conductive elastic arm (4) There are silver contacts (6) on the contact points.

3. The electrical connection socket according to claim 2, characterized in that the upper end surface of one of the sliding electrode connectors (3) is lower than the other.

4. The electrical connection socket according to claim 2, further comprising a sliding electrode connector (3) capable of sliding in another sliding groove (8), and a corresponding power connection piece (2) A conductive elastic arm (4) is provided thereon, and when the sliding electrode connector (3) is pressed at the end of the stroke, the two are in a contact state.

The electrical connection socket according to claim 4, characterized in that the sliding electrode connector (3) and the conductive elastic arm (4) are connected together.

6. The electrical connection socket according to claim 1, 2 or 3, characterized in that the sliding electrode connector (3) is provided with an inner bent end surface (10), and a silver contact (6) is provided therein. Bend on the end face (10).

7. The electrical connection socket according to claim 1, 2 or 3, characterized in that the sliding electrode connector (3) is provided with an outer bent end surface (9), and the spring (5) is provided outside Bend between the end face (9) and the base (1).

The electrical connection socket according to claim 6, characterized in that the sliding electrode connector (3) is provided with an outer bent end surface ( ₉ ), and the spring (5) is arranged at the outer bent end surface ( 9) Between the base (1).

9. The electrical connection socket according to claim 1, 2 or 3, characterized in that the conductive elastic arm

(4) Set perpendicular to the sliding direction of the sliding electrode connector (3).