CN203119249U - Universal converter - Google Patents

Abstract

A universal converter, the socket part is a national standard combination hole or a universal hole, and the plug part is a variety of commonly used plugs built in; there are multiple handles on the side wall of the converter, just by "pressing, pulling, Put" to pull out an interlocking plug to the effective position, and through the internal connection, the electrical connection from the plug to the socket socket is realized; a USB socket is also arranged on the side wall of the converter. Wherein the supporting part of the third plug body is C-shaped, and the supporting part surrounds the first plug body and the second plug body arranged side by side, and the L-pole pin and the N-pole pin of the third plug body are located on the same side of the supporting part, The ground pin is located on the opposite side of the support; the fourth plug body is located on the outer side of the support and adjacent to the ground pin. The fourth plug body is the body of the European plug, and is equipped with an insert body with grooves. The ground pin of the third plug body is embedded in the groove, and the insertion body can slide along the groove.

Description

Universal Converter

technical field

The utility model relates to a power converter and a plug body assembly inside thereof.

Background technique

There are various standards for power plugs and sockets, some use two-pin plugs, some use three-pin plugs, and the commonly used ones are Australian style, European style, British style, Chinese style, etc. This brings a lot of inconvenience to people traveling to and from different countries and regions. Therefore, there is a need for a converter that can change the plug, that is, a universal converter, which includes a variety of plugs. When in use, the correct plug can be stretched out and locked and inserted into the corresponding standard socket, thereby completing the conversion between different standard sockets. .

The existing universal converter is divided into two types, one is the pop-up plug type, which is recorded in the Chinese patent document with the announcement number CN201440551U. Due to the limitation of factors such as volume, the optional plug of this universal converter Limited, and the pop-up method is used, which cannot guarantee the stability and reliability of the plug. The other is the plug extension type, which is recorded in the Chinese patent document CN201153181Y. It is provided with a plurality of plugs that can extend along the chute, and the corresponding plugs are extended through the slide button to realize the connection between different plugs. conversion, but it adopts the switching slot arranged horizontally to realize the selection and interlocking of the plug, and the structure is relatively complicated and difficult to operate.

The Chinese invention patent application whose publication number is "CN102361201A" discloses a plug misalignment interlocking mechanism for a universal converter.

The Chinese invention patent application with publication number "CN1539187A" discloses a power plug having a socket for one or more standard plugs on one side. Plug contacts of different standards on the opposite side can be moved out into the active position. These plug contacts can be removed by means of the lever in the sliding slot. The sliding gaps of the plug contacts that have not been removed are covered by the brake body, so that only individual plug contacts can be removed.

Utility model content

The purpose of the following content is to provide a universal converter, when in use, only a standard plug body can be extended, and its structure is compact.

The universal converter for realizing the stated purpose comprises a socket arranged on one side, and plug bodies conforming to a plurality of different standards arranged on the opposite side, and each plug body can be removed from the chute by means of its operating handle. Moved to the effective position, the chute of the plug body that has not been moved to the effective position is blocked, so only a single plug body is moved out to the effective position, and each plug body has a support and an L-pole pin and an N-pole pin attached to the support. . It is characterized in that the plurality of plug bodies of different standards are the first plug body, the second plug body, the third plug body and the fourth plug body; the third plug body also has a ground pin, and the support of the third plug body The piece is C-shaped, and the C-shape surrounds the first plug body and the second plug body that are arranged side by side. The L-pole pin and the N-pole pin of the third plug body are located on the same side of the C-shape, and the ground pole pin is located on the same side of the C-shape. On the opposite side of the C-shape, the fourth plug body is located on the outer side of the C-shape and adjacent to the ground pin. The fourth plug body is the body of a European-style plug, and is equipped with an insert body, and the insert body has a groove , the ground pin of the third plug body is embedded in the groove, and the insertion body can slide along the groove.

The further feature of the universal converter is that the first plug body, the second plug body and the third plug body are Chinese plug body, Australian plug body and British plug body respectively.

The further feature of the universal converter is that it also includes a first interlock mechanism arranged on the first operation side and a second interlock mechanism arranged on the opposite side, that is, the second operation side; the first plug body and The supporting part of the second plug body is provided with an operating handle that can be elastically pressed, which is located on the first operation side; the supporting parts of the third plug body and the fourth plug body are provided with elastically pressing operating handles, which are located at The second operation side; the first interlocking mechanism includes an interlocking slide plate and a first positioning bracket, the interlocking slide plate is slidably stacked on the first positioning bracket, and there are four parallel linear slideways on the first positioning bracket, interlocking There are four folded line slides parallel on the slide; the pins of the operating handles of the first plug body and the second plug body pass through different straight line slides and folded line slides respectively, and the corresponding two of the first plug body and the second plug body The upper and lower ends of the linear slideway have blocking structures respectively to block and position the pins of the operating handles of the first plug body and the second plug body, but the pins of the operating handles of the first and second plug bodies are pressed inward. It can bypass the corresponding blocking structure so as to slide along the corresponding linear slideway; the third plug body and the fourth plug body have pins that pass through the remaining different straight line slideways and broken line slideways respectively; the four kinds of plug bodies When the column pin of one of the plug bodies slides along the linear slideway and the folding line slideway passed through it, the linear slideways corresponding to the column pins of the remaining plug bodies are blocked by the interlocking slide plate and cannot slide down; the second interlocking mechanism includes a sealing The slot plate and the second positioning bracket, there are two linear slides on the second positioning bracket, and two fold line slides on the slot sealing plate, the pins of the operating handles of the third and fourth plug bodies pass through different straight slides respectively and folded line slides, which can slide on different straight slides on the second positioning bracket, and the upper and lower ends of the straight slides corresponding to the third and fourth plug bodies respectively have columns that block the operation handles of the third and fourth plug bodies. The pins are blocked, but the pins of the operating handles of the third and fourth plug bodies can bypass the blocking structure and slide along the corresponding linear slideways after being pressed inward.

The further feature of the universal converter is that the four linear slides on the first positioning bracket are respectively provided by different linear slides, and the two linear slides corresponding to the first plug body and the second plug body The blocking structure is the positioning hole connected to the corresponding linear chute, and the four folded slides of the interlocking slide are provided by different folded slides respectively; one linear slide on the second positioning bracket is provided by the linear slide, and the other linear slide The slideway is provided by the linear edge on one side of the second positioning bracket, the blocking structure of the linear slideway corresponding to the third plug body is a step plane on the straight edge, and the blocking structure of the linear slideway corresponding to the fourth plug body is a connecting Corresponding to the positioning hole of the linear chute.

The further feature of the universal converter is that the second positioning bracket is also equipped with a slidable sealing plate, and there are two broken line slideways on the sealing plate, and the operating handles of the third and fourth plug bodies The pins respectively pass through different linear slideways on the second positioning bracket and different linear slideways on the groove sealing plate, and the straight slideways and fold lines along which the pins of one of the third and fourth plug bodies pass through. When the slideway slides, the linear slideway corresponding to the pin of the other plug body is blocked by the groove sealing plate.

The further feature of the universal converter is that it also includes a guide frame, the guide frame has a support and three guide posts on the support, and the three guide posts pass through the first, second and third plug bodies respectively guide holes on the guide frame, so that the first, second, and third plug bodies can slide along the corresponding guide posts, and the bottom side of the support of the guide frame is provided with a plug-side socket frame, which includes a plug-side plug frame for Insert the inserts of the plug body to form sockets for electrical connection, each socket is respectively attached to two connecting conductors, and the two conductors are hooked by the upper and lower hooks on both sides of the bottom side of the support of the guide frame. fixed.

The further feature of the universal converter is that one end of the two conductor pieces is also used as a pair of plug pins, which are inserted into the connecting sleeve at one end of the circuit board of the converter to form an electrical connection with the circuit board, and the other end of the circuit board The connecting socket at one end forms an electrical connection with the conductor sheet of the socket-side socket frame attached with multiple sockets.

The further feature of the universal converter is that the operating handle is installed on the outer side of the C-shaped bottom of the support of the third plug body, and the operating handle is connected with a slider that can slide in the chute of the support. Connect the operating lever, there is a projection on the operating lever, the projection is blocked by the step plane of the guide column corresponding to the third plug body, and the projection can be driven by the operating handle through the slider and the operating lever to avoid the guide column Blocking of the stair plane.

The further feature of the universal converter is that it also includes a metal guide post, and the metal guide post is fixed between the upper and lower covers of the universal converter, and the guide hole of the fourth plug body passes through the metal guide post to play the role of guiding role.

The universal converter of the utility model is suitable for traveling, and its socket part can be equipped with a universal hole, which can be inserted into multi-country plugs. There are four standard plug bodies on the side of the plug, which can be inserted into the socket systems of most countries in the world. . The plug body is hidden in the converter and interlocked with each other, and only one type of plug body can be pulled out during use. There are four operating handles on the side wall of the converter, which are respectively used to operate the four types of plug bodies. The extension method of each plug body is realized by sliding, so the operation is stable. And the four kinds of plug bodies are integrated together, and the volume is small.

Description of drawings

Figure 1 is an exploded view of the universal converter.

Fig. 2A is a perspective view of the upper cover with protective door and isolation bracket.

Fig. 2B is a bottom view of the upper cover.

Fig. 2C is a top view of the upper cover.

Fig. 3A is a perspective view of a protective door.

Fig. 3B is a side view of the protective door.

Fig. 3C is a top view of the protective door.

Fig. 4A is a perspective view of the sleeve holder on the side of the L/N pole socket.

Fig. 4B is a side view of the socket holder on the side of the L/N pole socket.

Fig. 4C is a top view of the sleeve frame on the side of the L/N pole socket.

Figure 5A is a perspective view of an isolation bracket.

Figure 5B is a side view of an isolation bracket.

Figure 5C is a top view of the isolation bracket.

Fig. 6A is a perspective view of the Chinese plug body.

Figure 6B is a side view, partially cut away, of the Chinese style plug body.

Fig. 6C is a partially cut-away top view of the Chinese style plug body.

Fig. 7A is a perspective view of the Australian plug body.

Figure 7B is a partially cutaway front view of the Australian plug body.

Fig. 8A is a perspective view of the Euro plug body.

Fig. 8B is a side view, partially cut away, of the body of the Euro-style plug.

Figure 8C is a front view, partially cut away, of the body of the Euro plug.

Fig. 9A is a perspective view of a UK plug body.

Figure 9B is a partially cutaway top view of the UK plug body.

Fig. 9C is a partial view of the body of the British plug, showing the stop structure of the handle and the control slider on the supporting member.

Fig. 10A is a front view of a positioning plate.

Figure 10B is a front view of the interlocking slides.

FIG. 10C is a perspective view of the universal converter without the housing, showing the position of the interlocking mechanism formed by the positioning plate and the interlocking slide plate in the universal converter.

Fig. 10D is a perspective view of the interlocking mechanism formed by the positioning plate and the interlocking sliding plate.

Fig. 11A is a front view of the groove sealing plate.

Fig. 11B is a front view of the groove sealing plate support.

Fig. 11C is a perspective view of the universal converter without the housing, showing the position of the interlocking mechanism formed by the slot sealing plate and the slot sealing plate support in the universal converter.

Fig. 11D is a perspective view of the interlocking mechanism formed by the positioning plate and the interlocking sliding plate.

Fig. 12A is a perspective view of the assembled guide frame and plug-side sleeve frame.

Fig. 12B is a top view of the socket holder on the side of the plug.

Fig. 13A is a front view of the circuit board.

Fig. 13B is a side view of the circuit board.

Figure 14A is a perspective view of the base.

Figure 14B is a top view of the base.

Fig. 15 is a longitudinal sectional view of the universal converter.

Fig. 16 is a transverse sectional view of the universal converter, mainly showing the cooperation between the movable pin of the plug body and the positioning hole on the positioning plate of the interlocking mechanism.

Fig. 17A is a perspective view of the exposed pin of the European plug body of the universal converter.

Fig. 17B is a perspective view of the exposed plug of the British plug body of the universal converter.

Fig. 17C is a perspective view of the exposed Chinese plug body of the universal converter.

Fig. 17D is a perspective view of the exposed Australian plug body of the universal converter.

Fig. 18A is a perspective view of four kinds of plug bodies assembled together.

Fig. 18B is a top view of four kinds of plug bodies assembled together.

Fig. 19 is a perspective view of the universal converter.

Figure 20 is a top view of the universal converter.

Detailed ways

In the following embodiments, the European, British, Australian, and Chinese plug bodies all refer to plugs that meet the relevant standards of Europe, the United Kingdom, Australia, and China, but all refer to plugs without grounding pins.

As shown in Figure 1, the universal converter includes an upper cover 1, a protective door 2, a socket side insert frame 3, an isolation bracket 4, a Chinese plug body 5, an Australian plug body 6, a European plug body 7, and a British plug body 8. European-style plug insert body 9, positioning plate 10 and interlocking slide plate 11 (forming the first interlocking mechanism), sealing plate 12 and sealing plate bracket 13 (forming the second interlocking mechanism), plug side socket frame 14 , guide frame 15, electronic components 16, screws 17 and base 18.

L and N poles refer to: the L pole is the live wire, and the N pole is the neutral wire.

As shown in FIGS. 6A to 6C , the Chinese plug body 5 includes a support (base) 55 , two pins 53 and two inserts 52 , wherein the pins 53 and inserts 52 are riveted or crimped during overmolding to form an electrical connection. An assembly cavity 51 is provided on one side of the support member 55 in the width direction, and the spring 21 and the movable pin 20 are installed inside it. The handle 19 is inserted into the hole 201 of the movable pin 20 and positioned by a boss 202 , so the handle 19 and the movable pin 20 are integrated, movable in the assembly cavity 51 , and reset by the spring 21 . Handle 19, movable pin 20, spring 21 can be set with reference to the structure shown in Fig. 1 of the Chinese utility model patent application that publication number is " CN102361201A ", and spring 21, movable pin 20 and handle 19 constitute an elastic handle, so that the handle 19 can move axially and be elastically restored. The supporting member 55 is an overmolded part, which can play a supporting and insulating role.

As shown in Figures 7A to 7B and Figure 6C, the Australian plug body 6 includes a support (base) 65, two pins 63 (L/N pole pins), and two inserts 62, wherein the pins 63 and the inserts 62 are riveted or Crimping during overmolding to form an electrical connection. An assembly cavity 61 is provided on one side of the support member 65 in the width direction, and the movable pin 20 and the spring 21 are installed inside it. Like the structure shown in FIG. 6C , the handle 19 is inserted into the hole 201 of the movable pin 20 and positioned by a boss 202 , so the handle 19 and the movable pin 20 are integrated and can move in the assembly cavity 61 and reset by the spring 21 . The supporting member 65 is an overmolded part, which can play a role of support and insulation.

As shown in Figures 8A to 8C and 6C, the European plug body 7 is composed of a support (base) 75, two pins 73 (L/N pole pins), and two inserts 72, wherein the pins 73 and the inserts 72 are riveted or Crimping during overmolding to form an electrical connection. An assembly cavity 78 is provided on one side of the support member 75 in the width direction, and the movable pin 20 and the spring 21 are installed inside it. Like the structure shown in FIG. 6C , the handle 19 is inserted into the hole 201 of the movable pin 20 and positioned with a boss 202 , so the handle 19 and the movable pin 20 are integrated and can move in the assembly cavity 78 and reset by the spring 21 . The supporting member 75 is an overmolded part, which can play a supporting and insulating role.

The Euro-style plug insertion body 9 is a movable block, which moves relative to the Euro-style plug body 7 under the guide of the pin 73 . The European plug body 7 has a locking pin 74 on the other side of the handle 19 side of the supporting member 75. The locking pin 74 and the handle 19 can be on the same axis, and the locking pin 74 is used to match with the groove of the interlocking slide plate described later. To realize interlocking between different plug bodies. A cylindrical guide hole 76 is formed on the support member 75 in the middle of the support member 75 between the two pins 73 for cooperating with the guide post to realize the guide when the European plug body 7 moves. The support member 75 is also provided with a crossbeam 77 between the two bolts 73, corresponding to the crossbeam 77, the inside of the Euro plug insert body 9 is provided with a rib 92, the rib 92 can block the beam 77, so that the Euro plug body 7 cannot be inserted from the Euro plug body 9, so that when the European plug body 7 is pulled up, the beam 77 rises with the plug insertion body 9 through the rib 92, and when the plug body is pulled down, the supporting member 75 presses the plug insertion body 9 and descends. There is a longitudinal or vertical groove 91 approximately in the middle of the plug insertion body 9 , and the groove 91 is used for inserting the ground pin of the British plug body 8 .

As shown in Figures 9A to 9C, the British plug body 8 includes a support 81, three pins 83 (including L pole pins, N pole pins and ground pole pins) and two pins 82, wherein the pins 82 and pins 83 Crimped when riveted or overmolded to form an electrical connection. The support member 81 is C-shaped and has a transverse support arm 811, a short longitudinal support arm 812 and a long longitudinal support arm 813. The ground pin protrudes downward from the short longitudinal support arm 812, but has no electrical connection, and is used to drive the protection door. Two guide columns 85, 89 protrude from the lateral support arm 811, and the control slider 84 slides and fits with the guide columns 85, 89 through the holes, so that the control slider 84 can move relative to the support arm 811, as shown in Figure 9C, The limit boss 8110 on the control slider 84 is inserted into the corresponding limit hole or groove on the lateral support arm 811, so that the control slider 84 can move relative to the lateral support arm 811, but cannot break away from the lateral support arm 811. Support arm 811. The holes on the operating handle 19 and the control slider 84 are tightly fitted together, and the two are positioned by means of the projection 88 or tightly fitted. A spring 21 is arranged between the control slider 84 and the transverse support arm 811 , and the control slider 84 and the operating handle 19 can move relative to the transverse support arm 811 under the spring 21 and operating pressure. The operating lever 87 is arranged on the long longitudinal support arm 813 and is connected with the control slider 84 , such as overlapping, so that the operation lever 87 can reciprocate along the long longitudinal support arm 813 under the control of the control slider 84 . The British plug body has a lock pin 8120 on the opposite side of the handle 19 side, that is, the end of the long longitudinal support arm 813. The lock pin 8120 is used to cooperate with the chute of the interlocking slide plate described later, so that different plug bodies lock each other. There is a guide hole 86 on the long longitudinal support arm 813, and the operating lever 87 has a projection corresponding to the guide hole 86. As shown in Figure 9B, in the natural state (that is, no external force is applied to the handle 19), the operating lever 87 The protrusion protrudes into the guide hole 86, and the protrusion is used to cooperate with the guide post 153 on the guide post frame 15 described later to position the British plug body 8 up and down.

Although the handles and springs of multiple plug bodies are marked with the same reference numerals, the size and appearance of the same component of different plug bodies may be slightly different.

As shown in Fig. 10A, Fig. 10B, Fig. 10C and Fig. 10D, the interlocking mechanism is formed by the positioning plate 10 and the interlocking slide plate 11, which can be converted according to the "universal conversion" documented in the Chinese utility model patent application with the publication number "CN102361201A". The device is constructed with a plug body misalignment interlock mechanism". There are four parallel linear grooves 102 on the positioning plate 10 , the upper ends of the middle two linear grooves 102 communicate with the upper positioning holes 101 , and the lower ends communicate with the lower positioning holes 103 . Interlocking slide plate 11 is correspondingly provided with four broken line grooves 111, and the upper end of each broken line groove 111 is connected with limit groove 112, and the entrance from limit groove 112 to broken line groove 111 is V shape, and limit groove 112 has the length on transverse direction enough to make The movable pins or columns in the folding line groove 111 move laterally at the upper end of the folding line groove 111 (the extending direction of the folding line groove is longitudinal) and stagger with the entrance into the folding line groove 111 . The interlocking sliding plate 11 is horizontally slidably arranged on the positioning plate 10 (for example, embedded in its chute), when the lower end of a linear groove 102 is aligned with the lower end of its corresponding folding line groove 111, the upper ends of the remaining folding line grooves 111 and The upper ends of the corresponding linear grooves 102 are staggered. In the initial position, that is, when each plug body is at the highest position, the sliding amount of the interlocking slide plate 11 is so small that the upper V-shaped entrance of each folding line groove 111 is opposite to the column or pin of the corresponding plug body, and both can be used Posts or pins pass through.

As shown in FIG. 10C and FIG. 10D , each plug body has a pin corresponding to a straight line slot 102 and a broken line slot 111 passing through the interlock mechanism. On the Chinese plug body 5, there is a movable pin 20 passing through the positioning hole 101 at the upper end of the corresponding linear slot 102 and the limit slot 112 at the upper end of the folding line slot 111 (the second on the right side in Figure 10C and Figure 10D ), and the Australian plug body 6 The movable pin 20 passes through the positioning hole 101 at the upper end of the corresponding linear groove 102 and the limit groove 112 at the upper end of the broken line groove 111 (the second on the left in Fig. The limit groove 112 at the upper end of the linear groove 102 and the folded line groove 111 (the first on the right in Fig. 10C and Fig. 10D), the British plug body 8 has a locking pin 812 passing through the corresponding straight line groove 102 and the folded line groove 111 (Fig. 10C , the limit groove 112 at the upper end of the first) on the left side in Fig. 10D. When one of the plug bodies slides down, it will cause the interlocking slide plate 11 to slide laterally on the positioning plate 10, so that the entrances of the other pins and the corresponding folding line grooves are staggered and are limited by the corresponding limit grooves, so the other plug bodies cannot slide. The lower end of only one folded line slot coincides with the straight line slot, while the other straight slide slots and folded line slots are misaligned, so that only one plug body can move up and down at the same time.

The upper and lower positions of the Chinese plug body 5 and the Australian plug body 6 are positioned by the upper and lower positioning holes 101 and 103 of the two straight slide grooves in the middle of the positioning plate 10, as shown in Figure 10A.

As will be described later, there are two upper and lower positioning positions of the British plug body 8, one is at the two steps 134 and 135 of the groove sealing plate bracket 13, as shown in FIG. 11B. The other is at the two steps 154 and 157 of the guide frame 15, see Fig. 12A.

The European plug body 7 is positioned in the upper and lower positioning holes 131 and 133 of the groove sealing plate bracket 13, as shown in FIG. 11B .

With reference to Figures 11A, 11B, 11C, and 11D, the groove sealing plate 12 and the groove sealing plate support 13 are stacked together to form another interlock mechanism (but the interlock mechanism mainly plays the role of sealing the chute, so the interlock The mechanism can be directly replaced by a chute), and the groove sealing plate 12 is arranged on the outside of the groove sealing plate support 13. Have a straight chute 132 on the groove sealing plate support 13, and have upper and lower positioning holes 131, 133 at the upper and lower ends of the straight chute 132, and have two folding line grooves 121 on the groove sealing plate 12. The movable pin 20 of the European-style plug body 7 and the rod portion of the operation button 19 of the British-style plug body 8 pass through the two folding line grooves 121 of the sealing plate 12 respectively. When the European-style plug body or the British-style plug body slides up and down, the groove-sealing plate 12 moves horizontally to close the groove, and the upper and lower positioning holes 131, 133 of the groove-sealing plate bracket 13 position the European-type plug body 7 at the upper and lower extreme positions. role. Correspondingly, an upper step 134 and a lower step 135 are formed on one side of the sealing plate bracket 13 (the left side in FIG. 11B ), and the upper step 134 and the lower step 135 respectively position the upper and lower extreme positions of the British plug body. effect.

As shown in Figure 2A to Figure 2C, the cover body of the upper cover 1 is provided with a national standard three-pole socket hole 1910 and a standard two-pole socket hole 1911, (the two together are called "national standard combination hole"), Or set a "universal hole"; the cover body of the upper cover 1 also has side walls around, wherein straight grooves 194, 195 are provided on the side walls, as shown in Figure 17A and Figure 17B, respectively for the plug body The handles of 6 and 5 move up and down and play a guiding role; the opposite side wall is provided with straight grooves 197 and 198, as shown in Figure 17C and Figure 17D, which are respectively used for the handles of the plug bodies 8 and 7 Move up and down and act as a guide.

The cover body of the upper cover 1 is provided with a cylindrical hole 199 along one end of the central axis for the positioning of the metal guide post 22 (as shown in FIG. 15 ); a pair of hooks 193 are provided on both sides of the interior for fixing the upper cover 1 to the isolation bracket 4; one side is also provided with an opening 196 for the insertion of the USB plug body; several grooves 191 and bosses 192 are arranged around the side walls of the loam cake, which cooperate with the corresponding bosses and grooves on the side walls around the base 18 to improve the overall The lateral rigidity of the housing (consisting of the upper cover 1 and the base 18).

As shown in Figures 14A and 14B, four straight slides 182, 183, 184, and 185 are provided on the outer wall of the base 18 for guiding and moving the handle of the plug body, and one side thereof is provided with a rectangular through hole 181 (in Fig. Also visible in 17B), used to place the USB socket. Holes 186, 187, 188, 189 are opened at the bottom of the base 18 in sequence, for the pins of the corresponding European plug body 7, Chinese plug body 5, Australian plug body 6 and British plug body 8 to protrude; the middle part of the base is provided with a round hole 1810, place screw 17. A positioning boss 1812 is also provided at the center of the bottom of the base 18 for positioning the guide frame described later. The bottom central position 1813 of the base 18 is used to place the guide frame 15 and the plug-side socket frame 14 . On one side of the opening 186 at the bottom of the base 18, a boss is arranged on the inner side of the edge of the base 18, and a hole 1814 is arranged on the boss for inserting a metal guide post.

As shown in Fig. 3A to Fig. 3C, the protection door 2 is one piece, and an inclined surface 22 is arranged in the middle of the front end, which is used for guiding the insertion of the ground pole of the three-pole plug; two inclined surfaces 24 are arranged on both sides of the front end, which are used for inserting the two-pole plug. Guide; the front end is also provided with two steps 26, which are inserted below the boss 45 of the isolation bracket during assembly for positioning; the rear end is an elastic body 25, which is integrated with the protective door to provide the elastic force when the protective door returns; the lower surface Two notches 27 are arranged on the two sides, which are used to protect the stop position when the door is unbalanced.

As shown in Figures 4A, 4B, and 4C, the socket side socket frame 3 includes conductor sheets 35, 36, and the front sockets 31 and 32 are connected to the conductor sheets 35, 36 for two-pole plug insertion, and the middle socket is also connected. The sleeves 33 and 34 are used for three-pole plug mating; the tail inserts 35 and 36 of the conductor sheets 35 and 36 are used for mating with the connecting socket of the circuit board 16 .

As shown in Figures 5A, 5B, and 5C. The isolation bracket 4 is mainly used for the support of the protection door 2 and the socket side socket frame 3, and isolates the socket side socket frame 3 from the plug bodies below it. The isolation bracket 4 has a cavity 46, and the socket-side socket frame 3 is placed in the cavity 46 . Barbs 410 are correspondingly provided around the cavity 46 for positioning the sleeve holder 3 . The bottom of the spacer bracket 4 is provided with cylindrical holes 41 , 42 for inserting two guide posts of the guide post frame 15 respectively. A cylindrical hole 43 is also provided at the bottom of the bracket 4 for tightening the screw 17 , and the screw 17 fixes the isolation bracket 4 on the base 18 . The front end of the cavity 46 of the support 4 is provided with a boss 45, and the boss 45 is used for the positioning of the protection door 3; Conflict, used to increase the amount of deformation when the protective door 2 moves backward. Bosses 48 are provided on the outer walls of both sides of the cavity 46 for connecting the isolation bracket 4 and the upper cover 1 ; a rib 44 is provided in the middle of the cavity 46 for guiding the protection door 2 .

As shown in Figure 12A, there are three guide posts 151, 152 and 153 on the guide frame 15, which are respectively used for the guidance of the Chinese plug body 5, the Australian plug body 6 and the British plug body 8 when they move up and down (these plug bodies have The corresponding guide hole is matched with the cylinder), wherein the middle of the guide post 153 is hollow, and is used to pass through the screw 17 to fix the isolation bracket 4 and the base 18. Upper and lower hooks 155 , 156 are respectively arranged on both sides of the supporting part of the guide frame 15 , which are used to fix the plug-side socket frame 14 . When assembling, the guide frame 15 and the plug side socket frame 14 are put into the base 18 together. The positioning boss 1812 at the center of the bottom of the base 18 cooperates with the groove at the bottom of the support to play the role of positioning the guide frame 15 . Positioning steps 154 and 157 are provided on the guide column 153 for the up and down positioning of the British plug.

As shown in Fig. 12A and Fig. 12B, the socket socket frame 14 on the plug side includes a pair of socket sleeves 142, a pair of socket sockets 143, a pair of socket sockets 144 and a pair of socket sockets 145, which can also be called contacts. Used to form an electrical connection with the pins of each plug body. The socket 142 is used to electrically connect the pin of the British plug body 8 . The socket 143 is used to electrically connect the pin of the Australian plug body 5 . The socket 144 is used to electrically connect the pin of the Chinese style plug body 6 . The socket 145 is used to electrically connect the pin of the European plug body 7 . Each socket 142, 143, 144, 145 is respectively attached to two connecting conductors 141 (one of which is used as an L-pole conductor, and the other is used as an N-pole conductor), and one end of the two conductors 141 is also used as a pair of pins for inserting The connection socket of circuit board 16 as described later.

As shown in Fig. 13A and Fig. 13B, the circuit board 16 is used for arranging electronic components and parts, and two pairs of connection sockets 161 and 162 are also arranged, and the socket 161 is connected with the pin 141 of the socket frame 14 on the plug side; the socket 162 and The socket side socket frame 3 is connected, so that the electrical connection between the socket side socket frame 3 and the plug side socket frame 14 is realized through the inner line of the circuit board. As shown in FIG. 1 , the circuit board 16 is arranged between the socket-side socket frame 3 and the plug-side socket frame 14 , and is arranged vertically in the state shown in FIG. 1 .

In the embodiment of the utility model as shown in the figure, the installation steps of the universal converter are as follows:

As shown in Fig. 1, Fig. 15 and Fig. 16, insert the conductor piece 141 of the plug side socket frame 14 between the upper and lower hooks 155, 156 on both sides of the support of the guide frame 15, so that the plug side is inserted The sleeve frame 14 is fixed on the guide frame 15, and then the two are put into the base 18 together. Insert the interlocking slide plate 11 into the chute defined by the upper and lower ribs on one side of the positioning plate 10, so that the positioning plate 10 and the interlocking sliding plate 11 are stacked, and then placed on one side of the base 18. Put into the corresponding three guide posts 151,152,153 positions of the guide frame 15 and assemble the movable pin 20 and the spring 21 but do not insert the Chinese plug body 5, the Australian plug body 6 and the British plug body 8 of the handle. Insert the metal guide post 22 into the hole 1814 of the base 18 . Assemble the Euro-style plug body 7 and the Euro-style insert on it together, and use the cylindrical hole 76 on it to insert into the metal guide post 22 and place it in the base 18 . The groove sealing plate 12 and the groove sealing plate support 13 are stacked and placed on the other side of the base 18 (opposite to the side where the positioning plate 10 and the interlocking slide plate 11 are located). Insert the circuit board 16 into one side of the base and engage with the pin 141 of the plug-side socket frame 14 . Insert the holes 41, 42 at the lower side of the bottom of the spacer bracket 4 into the guide columns 151, 152, place them on top of the four plug bodies 5, 6, 7, 8, and fix them on the base 18 with screws 17. Install the socket-side sleeve frame 3 in the inner cavity of the spacer bracket 4 , and insert the socket-side sleeve frame 3 and the socket 162 on the circuit board 16 . The four handles 19 are inserted into the movable pins 20 of each plug body in turn, and finally the upper cover 1 with a protective door (as shown in Figure 2A) is covered, and the upper cover 1 and the base 18 pass through the bumps and corresponding concave holes on the side walls around it. The slots are embedded in combination, and also press the guide post 22 simultaneously.

In the embodiment of the utility model as shown in the figure, the working principle of the universal converter is as follows:

1. Original state:

Four kinds of plug bodies 5,6,7,8 are hidden in the housing of the converter.

The movable pins of the plug bodies 5, 6, 7 push out under the action of the spring, and the cylindrical surface of the corresponding movable pin 20 is inserted into the upper positioning holes 101, 131 of the positioning plate 10 and the groove sealing plate bracket 13, and each plug body is at the highest position. , into storage state. As shown in Figures 1, 6B, 7B, 8C, 10A, 11B, 16, 18A, 18B.

The movable block 84 of the British plug body is pushed out under the force of the spring 21, and there are two positionings. 1) The end face 810 of the movable block 84 rests on the boss 134 of the groove sealing plate bracket 13; the movable block 84 drives the operating lever 87 Pull it out and put it on the step 154 of the guide column 153, see Fig. 9B, 11B, 12A.

2. Working status:

Press any one of the operating handles 19 of the three types of plug bodies 5, 6, 7, the movable pin 20 compresses the spring 21, and the cylindrical surface of the movable pin 20 breaks away from the corresponding upper positioning hole. At this time, pull down the plug body, and the interlocking slide plate (or slot sealing plate) slides left and right. When the plug body slides to the lowest position, release the handle, and the movable pin 20 is pushed out by the action of the spring 21, and inserted into the lower positioning hole. The plug body cannot be upward. Move, the plug body is in working state, see Fig. 6B, 7B, 8C, 10A, 11B, 16, 17A, 17B, 17C, 17D.

Press the operating handle 19 of the plug body 8, the movable block 84 compresses the spring 21 and moves inwardly, at this time the step 810 of the movable block breaks away from the step 134 of the groove sealing plate support 13. The movable block 84 drives the operation lever 87 to move, so that the boss of the operation lever 87 is separated from the step 154 of the guide column 153 ; at this time, the plug body 8 can move down along the guide column 153 .

When the plug body 8 moves to the lowest position, the operating handle is released, the movable block 84 pushes out under the action of the spring 21, and the step 810 of the movable block 84 is inserted into the lower side of the step 135 of the groove sealing plate support 13; the movable block 84 drives the operation The lever 87 moves, and its boss is supported on the step 157 lower side of the positioning post 153. At this moment, the plug body 8 cannot move upwards, and the plug body is in working condition.

When the plug body 5, 6, 7 or 8 is at the lower positioning position, the inserts of the plug body are inserted into the corresponding sockets 143, 144, 145 or 142 on the corresponding plug side socket frame 14, so that each plug body The electrical connection is formed between the plug pin of the converter and the socket side socket frame 3 of the converter through the circuit board 16, and the interlocking slide plate 11 covers the three slots of the positioning plate 10 at the same time, see FIG. 16 .

3. Storage process:

Press the handle on the protruding plug body, the movable pin or the movable block to compress the spring, and the plug body will leave the lower positioning position. At this time, lift the plug body. When the plug body slides to the highest position, release the handle, the movable pin or the movable block Under the action of the spring, it is ejected and inserted into the upper positioning position, and the plug body is in the storage state. At this time, the blades of the plug body are separated from the corresponding sockets on the socket frame 14 at the plug side, and the plug body pins are electrically disconnected from the sockets at the converter side.

Claims (9)

1. A universal converter, comprising a socket set on one side, and plug bodies conforming to multiple different standards set on the opposite side, each plug body can be moved out from the chute by means of its operating handle to In the effective position, the chute of the plug body that has not been removed is blocked, so only a single plug body is moved out to the effective position, and each plug body has a support and an L-pole pin and an N-pole pin attached to the support. It is characterized in that, The multiple plug bodies of different standards are the first plug body, the second plug body, the third plug body and the fourth plug body; The plug body and the second plug body are enclosed therein, the L pole pin and the N pole pin of the third plug body are located on the same side of the support, and the ground pin of the third plug body is located on the opposite side of the support ; The fourth plug body is located on the outside of the support and adjacent to the ground pin. The fourth plug body is the body of the European plug, and is equipped with an insert body. There is a groove on the insert body. The ground pole of the third plug body The pin is embedded in the groove, and the insert body can slide along the groove. 2 . The universal converter according to claim 1 , wherein the first plug body, the second plug body, and the third plug body are respectively a Chinese-style plug body, an Australian-style plug body, and a British-style plug body. 3. The universal converter according to claim 1, further comprising a first interlock mechanism arranged on the first operation side and a second interlock mechanism arranged on the opposite side, that is, the second operation side, the second interlock mechanism The supporting parts of the first plug body and the second plug body are provided with an operating handle that can be elastically pressed, which is located on the first operation side; the supporting parts of the third plug body and the fourth plug body are provided with an operating handle that can be elastically pressed. The handle is located on the second operating side; the first interlocking mechanism includes an interlocking slide plate and a first positioning bracket. There are four folded line slides parallel on the interlocking slide plate; the pins of the operating handles of the first plug body and the second plug body pass through different straight line slides and folded line slides respectively, the first plug body, the second plug body The upper and lower ends of the corresponding two linear slides have blocking structures respectively, which block and locate the pins of the operating handles of the first plug body and the second plug body, when the pins of the operating handles of the first and second plug bodies After being pressed inward, it can bypass the corresponding blocking structure so as to slide along the corresponding linear slideway; the third plug body and the fourth plug body have pins that pass through the remaining different linear slideways and broken line slideways respectively; When the pin of one of the four kinds of plug bodies slides along the straight slideway and broken line slideway passed through it, the straight slideway corresponding to the pin of the other plug bodies is blocked by the interlocking slide plate and cannot slide down; the second The interlocking mechanism includes a groove sealing plate and a second positioning bracket. There are two linear slideways on the second positioning bracket, and two folded line slideways on the groove sealing plate. The pins of the operating handles of the third and fourth plug bodies respectively pass through Through different linear slides and folded slides, it can slide on different linear slides on the second positioning bracket. The upper and lower ends of the linear slides corresponding to the third and fourth plug bodies have blocking structures respectively for the third and fourth plug bodies. When the pins of the operating handles of the third and fourth plug bodies are pressed inward, they can bypass the blocking structure and slide along the corresponding linear slideways. 4. The universal converter as claimed in claim 3, characterized in that, the four linear slides on the first positioning bracket are provided by different linear slides respectively, and the corresponding two of the first plug body and the second plug body The blocking structure of the linear slideway is the positioning hole connected to the corresponding linear slideway. The four folded line slideways of the interlocking slide plate are provided by different folded line slideways respectively; one linear slideway on the second positioning bracket is provided by the linear slideway. And another linear slideway is provided by the linear edge of one side of the second positioning bracket, the blocking structure of the linear slideway corresponding to the third plug body is a step plane on the straight edge, and the linear slideway corresponding to the fourth plug body The blocking structure is the upper and lower positioning holes that communicate with the corresponding linear chute. 5. The universal converter according to claim 3, characterized in that, the second positioning bracket is also equipped with a slidable sealing plate, and there are two folding line slideways on the sealing plate, and the third and fourth plug bodies The pins of the operating handle respectively pass through different linear slides on the second positioning bracket and different linear slides on the groove sealing plate, and the pins of one of the third and fourth plug bodies pass through the straight line When the slideway and the folding line slideway slide, the linear slideway corresponding to the pin of the other plug body is blocked by the groove sealing plate. 6. universal converter as claimed in claim 1, is characterized in that, also comprises guide frame, and guide frame has support member and three guide pillars on support member, and three guide pillars respectively pass through first, second, The guide hole on the third plug body allows the first, second, and third plug bodies to slide along the corresponding guide columns, and the bottom side of the support of the guide frame is provided with a plug side inserting sleeve frame, and the plug side inserts The sleeve frame includes sockets for inserting the inserts of the plug body to form an electrical connection, and each socket is respectively attached to two connecting conductor sheets, and the two conductor sheets are formed by the upper and lower sides of the bottom side of the support member of the guide frame. , The lower hook is fixed. 7. The universal converter as claimed in claim 6, characterized in that, one end of the two conductor sheets is also used as a pair of pins, and the connecting sleeve inserted into one end of the converter circuit board forms an electrical connection with the circuit board, and the circuit board The socket at the other end of the socket is plugged with the conductor sheet of the socket-side socket frame attached with multiple sockets to form an electrical connection. 8. The universal converter according to claim 6, wherein the operating handle is installed on the outside of the C-shaped bottom of the support of the third plug body, and the operating handle is connected to a slide that can slide in the chute of the support. block, the slider is connected to the operating lever, and there is a bump on the operating lever, which is blocked by the step plane of the guide column corresponding to the third plug body, and the bump can be avoided by the operating handle driven by the slider and the operating lever The blocking of the step plane of the guide post. 9. The universal converter according to claim 1, characterized in that, the universal converter also includes a metal guide post, and the metal guide post is fixed between the upper and lower covers of the universal converter, and the guide of the fourth plug body The holes pass through the metal guide posts, which play a guiding role.

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