A DC socket structure preventing sparking

Abstract

The utility model provides a kind of DC socket structure of preventing firing, belong to electrical equipment technical field, to solve the riveting of the present socket positive pole copper column and terminal, when load is too large, it is easy to produce spark, affect the problem of use safety, including insulating body, shielding shell is buckled on insulating body, and insulating body includes box body and extension platform, box body one end is set with socket, and the other end is respectively set with round hole and movable slot, movable slot is penetrated to extension platform, and movable slot two ends wall is set with two groups of corresponding clamping cavity, first terminal and second terminal are respectively clamped in clamping cavity, center needle is penetrated in round hole, and first terminal front end is bent and elastically contacted with second terminal.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, and more specifically, it relates to a DC socket structure that is anti-arc. Background Technology

[0002] A DC socket (direct current power socket) is an electrical interface used to connect direct current (DC) power supplies. It is widely used in electronic equipment, home appliances, communication equipment, industrial equipment, and other fields. A DC socket typically consists of a socket, a plug, contacts, and an insulating shell. When the plug is inserted into the socket, the internal contacts form a closed circuit, transmitting power to the device through the positive and negative contacts. Currently, the positive copper post and terminal of the socket are riveted together, which can easily generate sparks under excessive load, affecting safety.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a DC socket structure that is anti-arc, in order to achieve a more practical purpose. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a spark-proof DC socket structure to solve the issue that the current socket's positive copper post and terminal are riveted together, which can easily generate sparks under excessive load, affecting safety during use.

[0005] The purpose and effect of this anti-sparking DC socket structure are achieved by the following specific technical means:

[0006] A spark-proof DC socket structure includes an insulating body with a shielding shell attached to it. The insulating body includes a housing and an extension platform. One end of the housing has a socket, and the other end has a circular hole and a movable groove. The movable groove extends through the extension platform, and two sets of corresponding locking cavities are formed on the end walls of the movable groove. A first terminal and a second terminal are respectively locked in the locking cavities. A center pin passes through the circular hole, and the front end of the first terminal is bent to make elastic contact with the second terminal.

[0007] Furthermore, the first terminal has multiple bends formed at the front end bend, and each bend has a protrusion forming a contact portion.

[0008] Furthermore, a spring is provided on the first terminal, and a limiting groove corresponding to the spring is provided on the inner wall of the movable groove.

[0009] Furthermore, the end of the insulating body is provided with an end cap, and the end cap has a socket that communicates with the insertion port.

[0010] Furthermore, the circumference of the socket edge is provided with multiple buckles that are snapped into the insulating body, the periphery of the end cover is provided with a surrounding plate, the surrounding plate wall is provided with a locking strip protruding inward, and the side wall of the box is provided with a locking groove corresponding to the locking strip.

[0011] Furthermore, the shielding shell is provided with elastic cards on both sides, the box body is provided with grooves corresponding to the elastic cards on both sides, and the shielding shell is provided with notches on both sides of the end, and the box body is provided with card blocks corresponding to the notches on both sides.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This socket features an ultra-thin recessed plate structure. To prevent instantaneous arcing during plug insertion, the negative electrode shell is designed to make contact. Meanwhile, the positive electrode adopts a bent integrated center pin structure, abandoning the traditional positive electrode copper pillar and terminal riveting structure. The negative electrode has a multi-point contact structure built-in, thereby improving the product's load power. Attached Figure Description

[0014] Figure 1 This is a perspective view of the structure of a spark-proof DC socket according to this utility model.

[0015] Figure 2 This is a rear view of a DC socket structure designed to prevent arcing according to this utility model.

[0016] Figure 3 This is an exploded view of the structure of a DC socket that is designed to prevent arcing, according to this utility model.

[0017] Figure 4 This is a cross-sectional view of the insulating body in this utility model.

[0018] Figure 5 This is a structural schematic diagram of the corresponding plug in this utility model.

[0019] Figure 6 This is a schematic diagram of the circuit in this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Shielding shell; 2. Insulating body; 3. First terminal; 4. Second terminal; 5. Center pin; 6. End cap; 101. Buckle foot; 102. Elastic clip; 201. Round hole; 202. Movable groove; 203. Chest cavity; 204. Extension platform; 205. Groove; 206. Locking block; 207. Limiting groove; 208. Locking groove; 209. Box body; 301. Spring piece; 302. Bending part; 303. Contact part; 601. Insertion hole; 602. Buckle piece; 603. Enclosure; 604. Locking strip. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a spark-proof DC socket structure, including an insulating body 2, a shielding shell 1 fastened to the insulating body 2, and buckles 101 on both sides of the shielding shell 1. The buckles 101 can be bent to fix the shielding sheet outside the socket, thereby playing a shielding role.

[0028] The shielding shell 1 has elastic clips 102 on both sides, and the box body 209 has grooves 205 on both sides corresponding to the elastic clips 102, which allows the shielding shell 1 to be fastened and locked onto the insulating body 2. The shielding shell 1 has notches on both sides of its end, and the box body 209 has locking blocks 206 on both sides corresponding to the notches. The locking blocks 206 can extend into the notches and abut against the shielding shell 1. The elastic clips 102 and the locking blocks 206 interact and restrict each other, making the connection between the shielding shell 1 and the box body 209 more stable.

[0029] The insulating body 2 includes a housing 209 and an extension platform 204. One end of the housing 209 has an insertion port, and the other end has a circular hole 201 and a movable groove 202. The movable groove 202 extends through the extension platform 204, and the two end walls of the movable groove 202 have two sets of corresponding locking cavities 203. The locking cavities 203 respectively hold a first terminal 3 and a second terminal 4. A center pin 5 passes through the circular hole 201. The front end of the first terminal 3 is bent and makes elastic contact with the second terminal 4. The center pin 5 is the positive pole, the first terminal 3 is the negative pole, and the second terminal 4 is the detection terminal. The center pin 5, the first terminal 3, and the second terminal 4 all extend pins in the same direction to facilitate connection to the circuit board.

[0030] Furthermore, the design of the box 209 and the extension platform 204 forms an ultra-thin recessed plate structure to prevent instantaneous arcing of the high-current power socket during plug insertion.

[0031] In this design, the first terminal 3 has multiple bends 302 formed at the bend at its front end. Each bend 302 has a protrusion forming a contact 303. The first terminal 3 serves as the negative electrode, and the built-in contact 303 forms a multi-point contact structure, thereby increasing the product's load power. Since the first terminal 3 is too long, a spring piece 301 is provided on the first terminal 3, and a limiting groove 207 corresponding to the spring piece 301 is provided on the inner wall of the movable groove 202. This strengthens the fixation between the first terminal 3 and the locking cavity 203, so that the first terminal 3 remains stable even after the plug is inserted into the socket and the contact 303 is squeezed.

[0032] The insulating body 2 has an end cap 6 at one end, and an insertion hole 601 communicating with the socket is provided on the end cap 6. The end cap 6 contacts the shielding shell 1, increasing the area of ​​the negative electrode shielding shell 1 and effectively preventing the front end of the insulating body 2 from being exposed. At the same time, multiple fasteners 602 are provided around the edge of the insertion hole 601 and are snapped into the insulating body 2. A surrounding plate 603 is provided around the end cap 6, and a locking strip 604 is provided on the wall of the surrounding plate 603 protruding inward. A locking groove 208 corresponding to the locking strip 604 is provided on the side wall of the box 209. The locking strip 604 is inserted into the locking groove 208 to restrict the position of the end cap 6, making its structure more stable. Moreover, the bending of the fasteners 602 allows the elasticity of the fasteners 602 to restrict the plug after it is inserted into the socket, preventing the plug from becoming loose.

[0033] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A spark-proof DC socket structure, characterized in that: The device includes an insulating body (2), on which a shielding shell (1) is attached. The insulating body (2) includes a box (209) and an extension platform (204). One end of the box (209) has an insertion port, and the other end has a round hole (201) and a movable groove (202). The movable groove (202) extends through the extension platform (204), and two sets of corresponding locking cavities (203) are opened on the two end walls of the movable groove (202). The locking cavities (203) respectively hold a first terminal (3) and a second terminal (4). A center pin (5) passes through the round hole (201). The front end of the first terminal (3) is bent and makes elastic contact with the second terminal (4).

2. The arc-proof DC socket structure as described in claim 1, characterized in that: The first terminal (3) branches at the front end bend to form multiple bends (302), and each bend (302) has a protrusion to form a contact portion (303).

3. The arc-proof DC socket structure as described in claim 1, characterized in that: The first terminal (3) is provided with a spring piece (301), and the inner wall of the movable groove (202) is provided with a limiting groove (207) corresponding to the spring piece (301).

4. The arc-proof DC socket structure as described in claim 1, characterized in that: The insulating body (2) is provided with an end cap (6) at its end, and the end cap (6) is provided with a socket (601) that communicates with the socket.

5. The arc-proof DC socket structure as described in claim 4, characterized in that: The circumference of the socket (601) is provided with a plurality of buckle pieces (602) that are inwardly fastened into the insulating body (2). The end cover (6) is provided with a surrounding plate (603) on its periphery. The wall of the surrounding plate (603) is provided with a locking strip (604) protruding inward. The side wall of the box (209) is provided with a locking groove (208) corresponding to the locking strip (604).

6. The arc-proof DC socket structure as described in claim 1, characterized in that: The shielding shell (1) is provided with elastic cards (102) on both sides, and the box body (209) is provided with grooves (205) corresponding to the elastic cards (102) on both sides. The shielding shell (1) is provided with notches on both sides at the end, and the box body (209) is provided with card blocks (206) corresponding to the notches on both sides.

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