Connection structure of wire nose and contact

Abstract

The utility model provides a connecting structure of a wire nose and a contact, which comprises the contact and the wire nose, the contact is provided with an open slot for the wire nose to insert, the contact on one side of the open slot is provided with a mounting hole, and the contact on the other side of the open slot is provided with a through hole which is coaxial with the mounting hole and allows a connecting piece to pass through. And the connecting piece sequentially passes through the contact belt through hole part and the wire nose to be connected with the contact belt mounting hole part. One side of the wire nose is tightly attached to the contact, the other side of the wire nose is tightly attached to the pressing plate, the contact area is increased, the contact resistance is reduced, the heating phenomenon at the joint is reduced, the safety is improved, the wire nose is fixed on the contact through the screw, the shock resistance can be greatly improved through the elastic force when a product is vibrated, and the service life of the product is prolonged. And the product structure design is simple, the installation process is convenient and fast, and the connector is suitable for various electrical connection scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a connection structure between a wire nose and a contact. Background Art

[0002] In the field of electrical connections, the quality of the connection between contacts and wires directly affects the stability and safety of the circuit. Existing contacts and wire lugs are directly fixed with screws or welded. When fixing with screws, a flat washer is also required to press the wire lug. This existing contact connection method has the following problems:

[0003] Poor contact: Insufficient contact area between the contact and the wire leads to excessive contact resistance, unstable current transmission, or even complete disconnection.

[0004] Easy to fall off: Under the action of vibration or external force, the contacts are easily disconnected, especially in a vibration environment, and the reliability is poor.

[0005] Overheating: Due to poor contact, the connection is prone to overheating, posing a safety hazard and may even cause a fire.

[0006] Therefore, there is an urgent need for a connection structure that can improve the stability of the connection between the contact and the wire, prevent it from falling off, and reduce the risk of overheating. Utility Model Content

[0007] The purpose of the utility model is to provide a connection structure between a contact and a wire nose, so as to solve the problems of poor contact, easy falling off and overheating of the contacts in the prior art.

[0008] The technical solution of the utility model is as follows:

[0009] A connection structure between a wire nose and a contact includes a contact and a wire nose. The contact is provided with a slot for inserting the wire nose, a mounting hole is provided on the contact on one side of the slot, and a through hole is provided on the contact on the other side of the slot, which is coaxial with the mounting hole and for the connector to pass through. The connector passes through the through hole portion of the contact, the wire nose and the mounting hole portion of the contact in sequence to be connected.

[0010] Preferably, the contact is provided with a through-hole portion as a pressure plate, and the outer surface of the pressure plate is a plane or is processed with a plane portion or a countersunk hole that contacts the connector.

[0011] Preferably, the contact is made of copper.

[0012] Preferably, the slot width is greater than or equal to the thickness of the portion of the wire nose inserted into the slot.

[0013] Preferably, the inner surfaces of the grooves are planes parallel to each other.

[0014] The utility model achieves significant beneficial effects through the following technical solutions: the pressure plate can replace the flat pad, and one side of the wire nose is in close contact with the contact, and the other side is in close contact with the pressure plate. By increasing the contact area and reducing the contact resistance, the heat generation phenomenon at the connection is reduced and the safety is improved. The pressure plate is part of the contact, and the material is generally copper or other high-performance conductors with better conductivity. The wire nose is fixed to the contact by screws and will not fall off due to vibration or pulling. In addition, since the pressure plate and the contact are integrated, an elastic force is generated between the pressure plate and the screw after the screw is connected, thereby ensuring that the screw has good buffering force. When the product is vibrated, the elastic force can greatly improve the shock resistance and will not cause the product to have the problem of screw loosening due to vibration. Easy installation: the structural design is simple, the installation process is convenient and quick, and it is suitable for various electrical connection scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the female contact of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the male contact of the utility model;

[0017] Figure 3 This is a connection state diagram of the present utility model.

[0018] In the figure: 1. Contact; 2. Wire nose; 3. Connector; 11. Slot; 12. Mounting hole; 13. Through hole; 14. Pressure plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 3 A connection structure between a wire nose and a contact, comprising a contact 1 and a wire nose 2. The contact can be a male contact or a female contact. Figure 1 and Figure 2The contacts in this embodiment are made of copper. A wire lug is a conductive member connected to a conductor. This lug is conventional and has a through-hole. Its specific structure is not described in detail here. The contact 1 is provided with a slot 11 for inserting the wire lug 2. The inner surfaces of the slot 11 are parallel planes. This flatness ensures that when the contact clamps the wire lug, both sides of the lug have a large contact area. A mounting hole 12 is provided on one side of the slot 11. A through-hole 13, coaxial with the mounting hole 12, is provided on the other side of the slot 11 for the connector 3 to pass through. The connector passes through the through-hole portion of the contact, the wire lug, and the mounting hole portion of the contact, in sequence. In this embodiment, the slot extends transversely through the contact, providing a certain degree of elasticity on both sides. Once the wire lug is inserted into the slot, the contacts on both sides of the slot are locked, clamping the wire lug. This strengthens the connection between the wire lug and the contact and doubles the contact area.

[0022] In this embodiment, the contact is provided with a through-hole portion defined as a pressure plate 14, and the outer surface of the pressure plate 14 is a plane or is processed with a plane portion or a countersunk hole that contacts the connecting piece, so that the connection is more secure when the connecting piece is connected. In this embodiment, the connecting piece is a screw, and it can also be a bolt or a rivet. Screws are the best and have higher installation efficiency, so screws are selected. In this embodiment, the mounting hole can be a through hole or a blind hole.

[0023] In this embodiment, the width of the slot 11 is greater than or equal to the thickness of the part of the wire nose 2 inserted into the slot 11, and the width of the slot 11 and the thickness of the wire nose 2 are controlled within the range of 0-3mm. In this way, after the wire nose is inserted into the slot, only a slight clamping force needs to be applied to make the contact clamp the wire nose, thereby improving the connection strength and maximizing the contact area. If the gap is too large, it will cause the pressure plate to tilt, and the contact area between the pressure plate and the wire nose will be smaller, and the contact area between the connector and the pressure plate will also be smaller, which may cause loosening over time.

Claims

1. A connection structure between a wire nose and a contact, comprising a contact and a wire nose, characterized in that: The contact is provided with a slot for inserting the wire nose, and the contact on one side of the slot is provided with a mounting hole. The contact on the other side of the slot is provided with a through hole coaxially arranged with the mounting hole for the connecting piece to pass through. The connecting piece passes through the through hole part of the contact strip, the wire nose and the mounting hole part of the contact strip in sequence to be connected.

2. The connection structure between a wire nose and a contact according to claim 1, characterized in that: The contact is provided with a through hole portion as a pressing plate, and the outer surface of the pressing plate is a plane or is processed with a plane portion or a countersunk hole that contacts the connecting piece.

3. The connection structure between a wire nose and a contact according to claim 2, characterized in that: The contact is made of copper.

4. The connection structure between a wire nose and a contact according to claim 1, characterized in that: The slot width is greater than or equal to the thickness of the portion where the wire nose is inserted into the slot.

5. The connection structure between a wire nose and a contact according to claim 1, characterized in that: The inner surfaces of the grooves are planes parallel to each other.

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