TWI701870B - Modified socket structure - Google Patents

Abstract

A modified socket structure for inserting a plug with two long flat pins. The modified socket structure includes a casing, a switch cap, two pairs of electrical clamps and an elastic means. The switch cap is rotatably disposed on the casing and is rotatable between a plug-in position and an energized position. Each pair of the electrical clamps is located in the casing and has a fixed clamp and a movable clamp electrically connected to each other. The movable clamp has a projection and is movable between a home position and an accumulating position. The elastic means is used for accumulating elastic force when the movable clamps move toward the accumulating position, and is used for releasing the elastic force to move the movable clamps toward the home position. During the rotation of the switch cap from the plug-in position to the energized position, the elastic means will first accumulate the elastic force and then release the elastic force, and finally the movable clamps contact the long flat pins to form electrical connections.

Description

Improved socket structure

The present invention relates to a socket, in particular to a socket structure which is convenient for users to insert and remove plugs.

In the prior art, the socket structure is provided with conductive clips. When the user inserts the plug into the socket, the pins of the plug are clamped by the conductive clips. On the one hand, the plug and the socket are electrically connected, and on the other hand, the pin clips are provided. Hold force to prevent the plug from leaving the socket under slight external force. Therefore, when you want to remove the plug (especially for non-fixed extension cord sockets), the user usually needs to hold the socket with one hand, and then remove the plug with the other hand. In other words, the user usually cannot just use Pull out the plug from the extension cord socket with one hand.

One of the objectives of the present invention is to provide another improved structure of a socket for users to easily insert and remove plugs.

In order to achieve the above and other objectives, the present invention provides an improved socket structure for inserting a plug with two parallel side-by-side pins, the two pins respectively have positioning holes, the socket improved structure includes a base, a screw cover, Two pairs of electrical clips and an elastic means; the screw cap is pivoted on the base and can be rotated between a plug-in position and an energized position. The screw cap includes in sequence on the path rotating from the plug-in position to the energized position A first stroke and a second stroke, the screw cap has a screw cap body and a pair of parallel sockets, the pair of sockets penetrate the screw cap body and are respectively inserted into the two pins; each pair of electrical clips are provided A fixed clip and a movable clip that are electrically connected to each other in the seat body. The movable clip has a bump and can move between an attached position and a power storage position. Each of the pair of electrical clips Do not correspond to one of the sockets; the elastic means is used to accumulate elastic force when the movable clip moves toward the accumulating position, and is used to release the elastic force to move the movable clip toward the attached position; wherein, when the screw cap is in the plug-in position In the position, viewed from the direction facing the screw cap, the contours of each socket and its corresponding electrical clip do not overlap each other, and the two pairs of electrical clips cannot be used for the pins inserted in the socket An electrical connection is formed; wherein, when the screw cap rotates toward the energized position and is located within the first stroke, the screw cap pushes the two movable clamps toward the accumulating position to cause the elastic means to accumulate elastic force; wherein, when the cap rotates by When the first stroke enters the second stroke, the elastic means starts to release the elastic force to push the two movable clips to the attached position, and the screw cap is driven to rotate to the energized position through the second stroke; wherein, when the screw cap is in the energized position When in position, the bumps on the two movable clips can fit into the positioning holes on the pins inserted in the jacks, and the two pairs of electrical clips are respectively provided for contact with the two pins to form electrical connections.

Through the above design, some embodiments of the present invention can achieve the following effects at the same time: (1) The user can pull out the plug with one hand from the socket; (2) The plug is energized when the screw cover is in the energized position; When in the position, the plug is powered off; that is, the screw cap itself has a switch function; (3) The components used to provide the fixing force to the pins can be completely made of conductive metal components and are not easy to melt. The details are described below.

Please refer to Figures 1 and 2. The illustrated one is one of the embodiments of the improved structure of the socket of the present invention, which is used to cooperate with a plug 1 which has two parallel pins 2 arranged side by side. Each has a positioning hole 3, and the two pins 2 respectively represent the neutral and live wires of the power supply. In a possible implementation manner, the two pins have the same width. In this case, the two pins 2 can be either neutral or live; in a possible implementation, the widths of the two pins are different, and the wider one is the neutral. The narrower is the live wire; in a possible implementation, the plug can have a third pin that serves as a ground wire. In this embodiment, the two pins 2 are long and flat, but in other possible embodiments, the pins can have other shapes. The improved socket structure of the present invention can be applied to a non-fixed extension cord socket or a fixed socket, and one socket may include one or more socket improved structures of the present invention.

Please further refer to FIG. 3. In this embodiment, the improved structure of the socket has a base body 10, a screw cover 20, two pairs of electrical clips 30 and an elastic means.

The base body 10 has an upper shell 11, a lower shell 12, a retaining wall 13 and two positioning pins 14. The upper and lower shells 11, 12 can be butted and tightly joined, the upper shell 11 is provided with an opening 111, the retaining wall 13, and positioning pins 14 is formed on the lower shell 12, the retaining wall 13 extends generally in an S shape and has two abutting surfaces 131, and two positioning pins 14 are respectively adjacent to two opposite ends of the S-shaped retaining wall 13.

The screw cap 20 is made of insulating material and is pivoted on the base body 10. More specifically, the screw cap 20 is rotatably inserted into the opening 111 of the upper shell 11 and can be inserted in a plug-in position (as shown in Figures 2 and 4) State) and an energized position (as shown in Figure 8), the screw cap 20 sequentially includes a first stroke and a second stroke on the path from the plug-in position to the energized position, and, In a possible implementation, it may also include a preliminary trip before the first trip; the definition of the trip will be explained when the working principle is disclosed below. The screw cap 20 has a screw cap body 21, a pair of parallel sockets 22 and a pair of levers 23. The sockets 22 penetrate the screw cap body 21 and are respectively inserted into the two pins 2 of the plug. The lever 23 is formed on the screw Cover the bottom surface of the body 21.

Each pair of electrical clips 30 corresponds to one of the sockets 22 and has a fixed clip 31, a movable clip 32, and a C-shaped connection between the fixed clip 31 and the movable clip 32. The ring 33, the fixed clip 31 and the movable clip 32 are electrically connected by the connecting ring 33, and the two pairs of electrical clips 30 are all arranged in the base body 10. More specifically, the connecting ring 33 is sleeved on the positioning pin 14 The fixed clip 31 abuts against the abutment surface 131, and a fixed portion 311 is formed at one end of the fixed clip 31 to hook the retaining wall 13, so that the fixed clip 31 can remain stationary when the movable clip 32 is displaced. On the other hand, the movable clip 32 has a protrusion 321 and can be displaced between a return position (as shown in Figure 4) and a power storage position (as shown in Figure 7). The two levers 23 are respectively Corresponding to the two movable clamps 32, they are used to transmit force when the movable clamps 32 are displaced.

The elastic means is used to accumulate elastic force when the movable clip 32 moves toward the accumulating position, and is used to release the elastic force after accumulating the elastic force to move the movable clip 32 toward the attached position. In this embodiment, the elastic means includes a pair of reeds and a pair of springs 42, and in this embodiment, the reeds constitute a part of the movable clip 32, more specifically, a movable clip made of copper 32 can have the characteristics of a reed, that is, the movable clip 32 as a reed has a fixed end connected to the connecting ring 33 and a free end far away from the connecting ring 33 and whose position is variable; on the other hand, the pair of One end of the spring 42 abuts against the seat body 10, and the other end abuts against the two movable clips 32 respectively, so as to achieve the technical purpose of accumulating and releasing the elastic force. In this embodiment, the reed and the spring 42 are made of relatively high-temperature resistant and non-sinterable materials, which can meet safety standards. In other possible implementations, the reed and the spring can alternatively exist. For example, the movable clip does not have the function of a reed, and only the elastic force is provided by the spring, or for example, the movable clip still has the function of a reed. But omit the spring. In other possible embodiments, the elastic means may be reeds, springs, other elastic bodies or combinations thereof that act in other forms.

The working principle of the improved structure of the socket of this embodiment is described below in conjunction with the drawings.

Please refer to Figure 4, the screw cap 20 is in the plug-in position at this time, and the pin 2 is inserted into the jack. From the direction facing the screw cap 20 (ie Figure 4), the jack (equivalent to The outer contour of the pin 2 and the corresponding contours of the pair of electrical clips 30 do not overlap each other, so that neither of the two pairs of electrical clips 30 can form an electrical connection with the pin 2 inserted in the jack.

Please refer to Figure 5 again. When the user puts out force to rotate the screw cap 20 to the energized position, it first goes through a preliminary stroke until the lever 23 just touches the movable clip 32 at the attached position, that is, the preliminary stroke refers to The stroke of the screw cap 20 moving from the position shown in FIG. 4 to the position shown in FIG. 5.

Starting from Figure 5, passing through the positions shown in Figures 6 and 7 in sequence, it belongs to the aforementioned first stroke. During the first stroke, the lever 23 continues to contact the movable clip 32. At this time, the user needs to push away the elastic means. , That is, the reed and the spring 42 allow the elastic means to accumulate elastic force until the position shown in Fig. 7 is reached, the elastic force accumulates to the maximum, and the movable clip 32 is at the accumulating position.

After the screw cap 20 travels to the end of the first stroke (that is, the state shown in Figure 7), the path of the screw cap 20 continuing to move toward the energized position shown in Figure 8 belongs to the second stroke. At this time, even if the user does not exert any effort, The elastic means will also release the elastic force and push the two movable clips 32 to the attached position. The second movable clip 32 further pushes the lever 23, and the screw cap 20 is driven to rotate through the second stroke to the energized position, as shown in Figure 8. Indicates the status. When the screw cap 20 is in the energized position, the protrusion 321 on the movable clip 32 fits into the positioning hole 3 on the pin 2, and two pairs of electrical clips 30 are clamped on both sides of the corresponding pin 2 and formed It is electrically connected. At this time, the plug is powered on, and because the bump 321 is embedded in the pin 2, the plug is not easy to accidentally leave the socket due to accidental touch.

When the user wants to pull out the plug, he only needs to reversely rotate the screw cap 20 from the position shown in Fig. 8 to the position shown in Fig. 4, and the user can hold the non-electric clip 30 with one hand. Or the interfering plug 1 is pulled out.

Based on the above description, it can be understood that the effects that can be achieved by this embodiment include: (1) allowing the user to pull out the plug with one hand; (2) the plug is only energized when the cover is in the energized position; When in the position, the plug is powered off; that is, the screw cap itself has a switch function; (3) The components used to provide the fixing force to the pins can be made of conductive metal components and are not easy to melt.

It should be noted that in the above embodiment, the path of the screw cap from the plug-in position to the energized position includes a preparatory stroke, but in other possible implementations, the preparatory stroke can be omitted. In this case, the screw cap is in the plug-in position. When the position is pulled out, the lever or other parts that rotate in conjunction with the screw cap (other than the pins) are in contact with the movable clip, so there is no preparation stroke.

In addition, in the embodiment where the plug has a third pin used as a grounding wire, a grounding electrical terminal is also provided in the seat body. When the screw cap is rotated to the energized position, it can be used as the third pin of the grounding wire. Contact with the electrical terminal to form an electrical connection.

1: plug 2: pin 3: positioning hole 10: Seat 11: Upper shell 111: hole 12: Lower shell 13: retaining wall 131: Stick to the surface 14: positioning pin 20: screw cap 21: Screw cap body 22: jack 23: lever 30: electrical clip 31: fixed clip 311: Fixed part 32: movable clip 321: bump 33: connecting ring 42: Spring

Figure 1 is an improved structure of a socket according to one embodiment of the present invention, which is used to cooperate with a plug.

Figure 2 is an improved structure of the socket according to one embodiment of the present invention, with a plug inserted therein

Figure 3 is an exploded view of the plug of the improved structure of the socket according to one embodiment of the present invention.

4 to 8 are cross-sectional schematic diagrams of the improved structure of the socket and the plug rotation from the plug-in position to the energized position according to one embodiment of the present invention.

1: plug

2: pin

3: positioning hole

10: Seat

11: Upper shell

111: hole

12: Lower shell

13: retaining wall

131: Stick to the surface

14: positioning pin

20: screw cap

21: Screw cap body

22: jack

23: lever

30: electrical clip

31: fixed clip

311: Fixed part

32: movable clip

321: bump

33: connecting ring

42: Spring

Claims (7)

An improved structure of a socket for inserting a plug with two pins. The improved structure of the socket includes: a base; a screw cover pivoted on the base to rotate between a plug-in position and a power-on position. The screw cap includes a first stroke and a second stroke in sequence on the path rotating from the plug-in position to the energized position. The screw cap has a screw cap body and a pair of sockets, the pair of sockets penetrates the screw The cover body is provided for the two pins to be inserted respectively; two pairs of electrical clips, each pair of electrical clips is arranged in the base body and has a fixed clip and a movable clip that are electrically connected to each other, the movable clip It can be moved between an attached position and a power storage position, the pair of electrical clips respectively correspond to one of the jacks; an elastic means is used when the movable clip moves toward the power storage position It accumulates elastic force, and the elastic means is used to release the elastic force to make the movable clip move toward the attachment position; wherein, when the screw cap is in the plug-in position, viewing from the direction facing the screw cap, each plug The outlines of the hole and the pair of corresponding electrical clips do not overlap each other, and the two pairs of electrical clips cannot be electrically connected to the pins inserted in the socket; wherein, when the When the screw cap rotates toward the energized position and is located in the first stroke, the screw cap pushes the two movable clips toward the force storage position to cause the elastic means to accumulate elastic force; wherein, when the screw cap is moved by the first When the stroke enters the second stroke, the elastic means starts to release the elastic force to push the two movable clips to the attached position, and then drives the screw cap to rotate to the energized position through the second stroke; Wherein, when the screw cap is at the energized position, the two pairs of electrical clips are respectively provided for contact with the two pins to form electrical connections. The improved structure of the socket according to claim 1, wherein the screw cap further includes a pair of levers formed on the bottom surface of the screw cap body, each of the levers corresponds to one of the movable clamps; wherein, when the screw When the cover rotates toward the energized position and is within the first stroke, the lever pushes the corresponding movable clip to move the movable clip toward the accumulating position; wherein, when the elastic means starts to release When the two movable clips are pushed to the attached position by elastic force, the movable clip pushes the lever to drive the screw cap to rotate to the energized position through the second stroke. The socket improvement structure according to claim 1, wherein the elastic means includes a pair of reeds with a fixed end and a free end with a variable position. The improved structure of the socket according to claim 1, wherein the base further includes a retaining wall, the retaining wall has two abutting surfaces, and the two fixing clips respectively abut against the two abutting surfaces. The improved structure of the socket according to claim 1, wherein the elastic means includes a pair of springs, one end of the pair of springs abuts against the seat body, and the other end of the pair of springs abuts against the two movable clips respectively. The improved structure of the socket according to claim 1, wherein when the screw cap is located in the first stroke, when viewed from the direction facing the screw cap, each socket and the corresponding pair of electrical clips The contours do not overlap each other. The improved structure of the socket according to claim 1, wherein the two pins are long and flat and each has a positioning hole, each of the movable clips has a bump corresponding to the positioning hole, and when the screw cover is at the energized position At this time, the protrusions on the two movable clips are just suitable for being inserted into the positioning holes on the pins inserted in the sockets.

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