Elastic sheet structure of socket contact

Abstract

The utility model discloses an elastic sheet structure of a socket contact, and belongs to the technical field of sockets. An elastic sheet structure of a socket contact comprises an elastic sheet and a conductive sheet, the surface of the elastic sheet is fixedly provided with a plug board used for installing the conductive sheet, the surface of the conductive sheet is provided with a slot matched with the plug board, the elastic sheet is in an L shape with a bent lower end, the elastic sheet is installed on the surface of a base, and the conductive sheet is installed on the base. An L-shaped mounting groove is formed in the side surface of the base; according to the utility model, the elastic sheet drives the conductive sheet to be in physical contact with the plug, and the conductive sheet only plays a conductive role and does not play an elastic deformation role, so that the service life of the socket contact is prolonged, and the socket contact has the advantages of simple structure, low cost and capability of bearing large overload without heating.

Description

Technical Field

[0001] This utility model relates to the field of socket technology, and in particular to a spring contact structure for a socket. Background Technology

[0002] Power sockets are a common electrical accessory. Studies have shown that 50% of fires in winter are caused by electricity, and socket fires account for more than 60% of these electrical fires. Because sockets themselves have a small load capacity, they are often connected to high-power electrical equipment, exceeding their capacity and easily causing the socket to overheat and catch fire.

[0003] Current electrical sockets consist only of a casing and conductive copper contacts. This design has several problems: the outer arc shape of the two copper contacts allows for point-to-point conductivity with the plug socket, resulting in a small conductive area, reduced current, increased resistance, overheating at the contact points, and potential arcing and erosion. Over time, the copper contacts deform, weakening or losing their elasticity. This can lead to the socket malfunctioning or, in severe cases, causing a fire. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a spring structure for a socket contact.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spring contact structure for a socket includes a spring sheet and a conductive sheet. A plate for mounting the conductive sheet is fixed on the surface of the spring sheet. A slot for cooperating with the plate is formed on the surface of the conductive sheet. The spring sheet is L-shaped with its lower end bent. The spring sheet is mounted on the surface of a base. An L-shaped mounting groove is formed on the side of the base.

[0007] In some embodiments, the elastic sheet is made of manganese alloy spring steel.

[0008] In some embodiments, a movable gap is provided between the slot and the insert plate.

[0009] In some embodiments, the vertical surface of the elastic piece has an inclined angle and faces the plug direction.

[0010] In some embodiments, the elastic sheet and the conductive sheet are arranged as a set, and one of the conductive sheets is in contact with one side of the plug.

[0011] In some embodiments, two sets of elastic sheets and conductive sheets are provided, with the two conductive sheets respectively contacting both sides of the plug.

[0012] Compared with the prior art, the present invention provides a spring contact structure for a socket, which has the following beneficial effects.

[0013] 1. This utility model uses an elastic sheet to drive the conductive sheet into physical contact with the plug. The conductive sheet only undertakes the function of conducting electricity and does not undertake the function of elastic deformation, thereby improving the service life of the socket contact. This socket contact has the advantages of simple structure, low cost, and the ability to withstand large overloads without overheating.

[0014] 2. This utility model, by setting an movable gap between the slot and the plug plate, allows the conductive sheet to contact the plug plane through the movable gap when the plug and the conductive sheet make physical contact, thereby increasing the contact area and improving the conductivity. The elastic force generated by the elastic sheet always pushes the conductive sheet to stick tightly to the plug surface, preventing poor contact.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positive axial structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the rear axial structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0019] Figure 4 This is a side view of the conductive sheet and elastic sheet in this utility model.

[0020] Figure 5 This is a schematic diagram of the axial structure of the conductive sheet in this utility model.

[0021] Figure 6 This is a schematic diagram of the inclined structure of the conductive sheet and elastic sheet in this utility model.

[0022] Figure 7 This is a schematic diagram of the single-sided usage state of this utility model.

[0023] Figure 8 This is a schematic diagram of the double-sided usage state of this utility model.

[0024] In the picture:

[0025] 1. Elastic sheet; 101. Insert plate; 102. Groove; 2. Conductive sheet; 201. Inclined piece; 202. Slot; 203. Limiting plate; 3. Base; 301. Mounting slot; 4. Connector. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figure 1-7 A spring contact structure for a socket includes a spring sheet 1, which is L-shaped with its lower end bent. A plate 101 for mounting a conductive sheet 2 is fixed on the surface of the spring sheet 1. A groove 102 is formed on the surface of the spring sheet 1. The contact surface between the conductive sheet 2 and the plug is flat. An inclined plate 201 is bent at the upper end of the conductive sheet 2. A slot 202 is formed on the surface of the conductive sheet 2. A limiting plate 203 is bent at the lower end of the conductive sheet 2. A base 3 for mounting the spring sheet 1 is provided on the lower housing of the socket. An L-shaped mounting groove 301 is formed on the side of the base 3. The base 3 is made of the same material as the socket housing. A connector 4 for soldering wires is provided on the side of the conductive sheet 2 away from the plug.

[0029] It is understandable that by setting the mounting groove 301, it is convenient to insert the elastic piece 1 into the surface of the base 3, and to insert the conductive piece 2 into the surface of the plug plate 101 through the slot 202. The baffle of the socket housing blocks the entrance side of the mounting groove 301, thereby limiting the conductive piece 2 and the elastic piece 1 at the same time, preventing the elastic piece 1 from detaching from the mounting groove 301 or the conductive piece 2 from falling off the surface of the plug plate 101 after long-term use. By setting the inclined piece 201, it is convenient to insert the plug into the side of the conductive piece 2 away from the elastic piece 1. By setting the limiting plate 203 and the groove 102, the conductive piece 2 is further limited.

[0030] Specifically, the elastic sheet 1 is made of manganese alloy spring steel, and the conductive sheet 2 is made of copper alloy.

[0031] It is understandable that by using manganese alloy spring steel for the elastic piece 1, the elastic piece 1 only undertakes the function of elastic deformation, allowing the elastic piece 1 to drive the conductive piece 2 to make physical contact with the plug. Since the contacts of existing electrical sockets are mostly made of phosphor bronze, whose modulus is 110-130 GPa, while the modulus of manganese alloy spring steel is 210 GPa, the elastic deformation life of manganese alloy spring steel is much higher than that of phosphor bronze, thereby improving the service life of the socket contacts. By using copper alloy material for the conductive piece 2, the conductive piece 2 only undertakes the function of conduction, and does not undertake the function of elastic deformation.

[0032] Specifically, a movable gap of 0.05-0.2mm is provided between the slot 202 and the insert plate 101.

[0033] It is understandable that by setting a movable gap between the slot 202 and the plug plate 101, the conductive sheet 2 can make contact with the plug plane through the movable gap when the plug and the conductive sheet 2 make physical contact, thereby increasing the contact area and improving the conductivity.

[0034] Specifically, the vertical surface of the elastic piece 1 has an inclined angle and faces the plug direction.

[0035] Understandably, when the plug is inserted into the surface of the conductive sheet 2, the pressure of the plug causes the elastic sheet 1 and the conductive sheet 2 to return to perpendicularity, so that the conductive sheet 2 and the plug make perpendicular contact, achieving the purpose of surface contact. This increases the contact area by at least 20 times the national standard, improving the conductivity. The elastic force generated by the elastic sheet 1 always pushes the conductive sheet 2 to stick tightly to the surface of the plug, preventing poor contact.

[0036] Specifically, when the maximum power consumption of the socket is less than 2500W, a set of elastic sheet 1 and conductive sheet 2 are used to make single-sided contact with the plug.

[0037] Understandably, by using a set of elastic sheet 1 and conductive sheet 2 to make contact with one side of the plug, the cost can be reduced while ensuring conductivity.

[0038] Example 2

[0039] Reference Figure 8 A spring contact structure for a socket, which differs from the above embodiment in that when the maximum power of the socket is greater than 2500W, two sets of spring sheets 1 and conductive sheets 2 are used to make double-sided contact with the plug.

[0040] It is understandable that by physically contacting the two sets of conductive plates 2 with both sides of the plug, the contact area is doubled, thereby enabling the power consumption to reach over 10,000W.

[0041] In this invention, the elastic piece 1 is inserted into the surface of the base 3 through the mounting groove 301, and the conductive piece 2 is inserted into the surface of the plug plate 101 through the slot 202. Then, the upper and lower housings of the socket are merged, so that the baffle of the upper housing blocks the entrance side of the mounting groove 301, thereby limiting the conductive piece 2 and the elastic piece 1 at the same time, preventing the elastic piece 1 from detaching from the mounting groove 301 or the conductive piece 2 from falling off the surface of the plug plate 101 after long-term use. When using the socket, the plug is inserted into the socket hole, so that the plug is inserted into the side of the conductive piece 2 away from the elastic piece 1 through the inclined plate 201. The compression of the plug makes the elastic piece 1 and the conductive piece 2 return to perpendicularity. Under the action of the movable gap, the conductive piece 2 makes perpendicular contact with the plug, achieving the purpose of surface contact, increasing the contact area, and improving the conductivity. The elastic force generated by the elastic piece 1 always pushes the conductive piece 2 to stick tightly to the surface of the plug, preventing poor contact and reducing the occurrence of fire.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A spring contact structure for a socket, characterized in that, It includes an elastic sheet (1) and a conductive sheet (2). The surface of the elastic sheet (1) is fixed with a plate (101) for mounting the conductive sheet (2). The surface of the conductive sheet (2) is provided with a slot (202) that mates with the plate (101). The elastic sheet (1) is an L-shaped sheet with its lower end bent. The elastic sheet (1) is mounted on the surface of a base (3). The side of the base (3) is provided with an L-shaped mounting groove (301).

2. The spring contact structure of a socket contact according to claim 1, characterized in that, The elastic sheet (1) is made of manganese alloy spring steel.

3. The spring contact structure of a socket contact according to claim 1, characterized in that, An movable gap is provided between the slot (202) and the insert plate (101).

4. The spring contact structure of a socket contact according to claim 1, characterized in that, The vertical surface of the elastic piece (1) has an inclined angle and faces the plug direction.

5. The spring contact structure of a socket contact according to claim 1, characterized in that, The elastic sheet (1) and the conductive sheet (2) are arranged in a set, and one of the conductive sheets (2) is in contact with one side of the plug.

6. The spring contact structure of a socket contact according to claim 1, characterized in that, The elastic sheet (1) and conductive sheet (2) are provided in two sets, and the two conductive sheets (2) respectively contact the two sides of the plug.

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