Alternating current and direct current synchronous switcher

Abstract

The alternating current and direct current synchronous switcher comprises a bottom shell and an upper cover, the upper cover abuts against the bottom shell, and a clamping type first locking structure is arranged between the upper cover and the bottom shell; a mainboard is clamped at the bottom end in the bottom shell, a plurality of connectors are arranged on the mainboard, through grooves are formed in the positions, corresponding to the connectors, of the upper cover, and the top ends of the connectors are clamped with the corresponding through grooves; the upper cover is provided with shielding plates which can be opened in a rotating mode to expose or seal and protect the connectors at the positions of the through grooves, and the shielding plates are arranged independently. The problems that dust easily enters unused connectors and a device shell is inconvenient to disassemble and assemble are solved, the shielding plates capable of shielding the connectors are arranged above the connectors correspondingly, the connectors needing to be used can be exposed independently, other connectors are shielded and protected by the shielding plates, dust can be effectively prevented from entering the connectors, and follow-up smooth use is guaranteed; the upper cover and the bottom shell can be rapidly separated through the clamping type first locking structure, operation is easy, and the mainboard can be conveniently maintained and repaired.

Description

Technical Field

[0001] The present invention relates to the technical field of AC / DC power supply, and in particular to an AC / DC synchronous switcher. Background Art

[0002] When the instrument is used externally, in some cases, it is not certain whether the external power supply is AC or DC, resulting in the need for an additional power adapter or inverter during installation or debugging, which increases the difficulty and cost of the work.

[0003] Among them, the announcement number CN217741560U discloses an AC / DC power supply switch, including an upper cover, a base and a bottom plate, a relay installation compartment arranged on the upper cover, an electrical connection cavity arranged in the upper cover and the bottom plate, a relay arranged in the relay installation compartment, a plurality of first connector slots provided on the upper cover, a DC input connector, a DC switch connector, an AD-DC switch power connector and a plurality of DC output connectors arranged in the first connector slots, a DC switch arranged on the DC switch connector, and an AD-DC switch power supply arranged on the AD-DC switch power connector. The technical solution has defects as follows:

[0004] In this technical solution, multiple joints are directly exposed to the outside, so some unused joints are easily filled with dust, affecting subsequent use. In addition, the device housing is connected by multiple bolt thread locking connections. When disassembling and assembling, matching tools are required to tighten multiple bolts one by one, which is cumbersome, time-consuming and labor-intensive, and inconvenient to maintain and repair the internal mainboard.

[0005] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes an AC / DC synchronous switch to overcome the defects of the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide an AC / DC synchronous switch to solve the problems that unused connectors are easily infiltrated with dust and the device casing is inconvenient to disassemble and assemble. The present invention arranges shielding plates that can shield the connectors above each connector, so that the connectors that need to be used can be exposed separately, and the other connectors are shielded and protected by the shielding plates, which can effectively prevent dust from entering and ensure subsequent smooth use; the first snap-on locking structure can quickly separate the upper cover from the bottom shell, which is simple to operate and convenient for maintenance and repair of the mainboard.

[0007] The objective of the present invention is achieved in this way. An AC / DC synchronous switch comprises a bottom shell and an upper cover, wherein the upper cover is arranged on the bottom shell against each other, and a first clamping locking structure is arranged between the upper cover and the bottom shell; a main board is clamped on the inner bottom end of the bottom shell, and a plurality of connectors are arranged on the main board, and through grooves are respectively provided at positions of the upper cover corresponding to each of the connectors, and the top of each of the connectors is clamped with the corresponding through groove; the upper cover is provided with a shielding plate at each of the through grooves, which can be rotated to open and expose or close to protect each of the connectors, and each of the shielding plates is arranged independently of each other.

[0008] In a preferred embodiment of the present invention, the first locking structure includes a first locking portion, a second locking portion, a movable ring, a transmission structure and a first limiting structure; the first locking portion is connected to the bottom surface of the upper cover and can extend into the bottom shell; the second locking portion is arranged in the bottom shell and can be rotatably locked or separated from the first locking portion; openings are provided on both sides of the bottom shell, the movable ring is sleeved on the outer wall of the bottom shell and is located on the outside of the opening, and the movable ring can be lifted and lowered along the side wall of the bottom shell, the transmission structure is fixedly connected to a side of the movable ring close to the bottom shell, and the transmission structure is passed through the opening, and the movable ring drives the second locking portion to rotate through the transmission structure; the first limiting structure is arranged on the outer wall of the bottom shell and is located below the movable ring, and can lock and limit the movable ring.

[0009] In a preferred embodiment of the present invention, the first locking portion includes a first vertical rod and a first transverse rod connected to form an L-shaped structure, the top end of the first vertical rod is connected to the bottom surface of the upper cover, and the top surface of the first transverse rod forms a first locking surface.

[0010] In a preferred embodiment of the present invention, the second stopping portion includes a second transverse rod, a second vertical rod and a third transverse rod connected to form a horizontal U-shaped structure, the bottom surface of the second transverse rod forms a second stopping surface, and the second stopping surface can be stopped on the first stopping surface; a rotating rod is passed through the second vertical rod, and the two ends of the rotating rod are respectively hinged on the side walls of the bottom shell, and the second stopping portion can rotate around the rotating rod; the third transverse rod extends toward the direction of the transmission structure into the opening, and the side wall of the third transverse rod is provided with a strip opening, and one end of the transmission structure is hinged in the strip opening.

[0011] In a preferred embodiment of the present invention, the transmission structure includes a push plate and a round pin, the first end of the push plate is fixedly connected to the movable ring, the round pin is connected to the side wall of the push plate close to the second end, and the round pin extends and is inserted into the strip-shaped opening.

[0012] In a preferred embodiment of the present invention, the first limiting structure includes two plug plates respectively arranged on both sides of the movable ring, each of the plug plates is respectively extended downward from the bottom surface of the movable ring, and a limiting block is respectively arranged below each of the plug plates, each of the limiting blocks is fixedly connected to the outer wall of the bottom shell, and each of the limiting blocks is provided with a through limiting hole, and each of the plug plates can be respectively plugged and locked with the corresponding limiting hole.

[0013] In a preferred embodiment of the present invention, a cavity is provided at the lower end of the plug board, and a card block through hole is provided on a side of the cavity away from the bottom shell;

[0014] A movable block that can slide and is fixed circumferentially is provided in the cavity, a block is fixedly provided on the side of the movable block facing the block through hole, an end of the block away from the bottom shell can extend to the outside of the cavity through the block through hole, or be pushed inward and return to the cavity, and the top surface of the block is located at a position outside the cavity and is abutted and locked against the bottom surface of the limit block; a first spring is provided at one end of the movable block away from the block, and one end of the first spring away from the movable block is connected to the side wall of the cavity.

[0015] In a preferred embodiment of the present invention, a fixing rod is disposed in the cavity, and the movable block and the first spring are movably sleeved on the fixing rod.

[0016] In a preferred embodiment of the present invention, the longitudinal sections of the movable block and the cavity are both rectangular.

[0017] In a preferred embodiment of the present invention, a side of the block away from the bottom shell is provided with an inclined surface extending upward from the bottom end.

[0018] In a preferred embodiment of the present invention, each of the shielding plates is respectively connected to a second locking structure that limits the rotation of the shielding plate.

[0019] In a preferred embodiment of the present invention, a hinge seat is provided on one side of each through slot of the upper cover, a hinge shaft is fixedly provided on the hinge seat, one end of each shielding plate is hinged on the hinge shaft, and the second locking structure is connected between the shielding plate and the hinge shaft.

[0020] In a preferred embodiment of the present invention, the first locking structure includes a fixed shell fixedly arranged on the side wall of the shielding plate, a plug rod capable of sliding along the fixed shell, and a socket arranged on the hinge shaft, the plug rod is inserted into the socket to lock the shielding plate, or the plug rod leaves the socket to unlock the shielding plate.

[0021] In a preferred embodiment of the present invention, the insertion rod is slidably inserted through the side walls at opposite ends of the fixed shell, and a slider is sleeved on the position of the insertion rod located inside the fixed shell, and a second spring is sleeved on the side of the insertion rod located away from the insertion hole, and the two ends of the second spring are respectively pressed against the end face of the slider and the side wall of the fixed shell; a pull block is provided at the end of the insertion rod away from the insertion hole.

[0022] In a preferred embodiment of the present invention, a shielding pad is fixedly provided on the bottom surface of each shielding plate, and each shielding pad is respectively in conflict with the top end of each joint.

[0023] In a preferred embodiment of the present invention, the shielding pad is a rubber pad.

[0024] In a preferred embodiment of the present invention, a third locking structure is provided between each of the connectors and the main board.

[0025] In a preferred embodiment of the present invention, the third locking structure includes two rotating vertical rods respectively arranged on the top surface of the main board and located on both sides of the joint, and the top of each rotating vertical rod is respectively connected to a stopper that can be rotatably engaged with the side wall of the joint; a torsion spring is sleeved on the rotating vertical rod, and the two ends of the torsion spring are respectively fixedly connected to the rotating vertical rod and the main board.

[0026] In a preferred embodiment of the present invention, pins are fixedly provided on both sides of the bottom of each connector, and pads are provided at positions corresponding to each pin on the mainboard, and each pin is plugged into the corresponding pad.

[0027] As described above, the AC / DC synchronous switch of the present invention has the following beneficial effects:

[0028] In the present invention, a through groove and a shielding plate that can shield the joints are respectively arranged above each joint, so that the joints that need to be used can be exposed separately. Other joints can be effectively prevented from dust entry due to the shielding protection of the shielding plate, thereby ensuring subsequent smooth use; the first snap-on locking structure can quickly separate the upper cover from the bottom shell, and the operation is simple, which facilitates the maintenance and repair of the mainboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0030] in:

[0031] Figure 1 It is the overall structure diagram of the AC / DC synchronous switch of the present invention.

[0032] Figure 2 It is a cross-sectional view of the AC / DC synchronous switch of the present invention.

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0034] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0035] Figure 5 It is a schematic diagram of the first locking portion and the second locking portion of the present invention when they are locked.

[0036] In the figure:

[0037] 1. Bottom shell;

[0038] 2. Articulated seat;

[0039] 3. Articulated shaft;

[0040] 4. Shielding board;

[0041] 5. Blocking pad;

[0042] 6. Activity ring;

[0043] 7. Connector;

[0044] 8. Upper cover;

[0045] 9. Solder pad;

[0046] 10. Pins;

[0047] 11. Motherboard;

[0048] 12. Stopper;

[0049] 13. Torsion spring;

[0050] 14. Rotate the vertical rod;

[0051] 15. First stopper; 1501. First vertical rod; 1502. First horizontal rod;

[0052] 16. Rotating rod;

[0053] 17. Push plate;

[0054] 18. Round pin;

[0055] 19. Fix the housing;

[0056] 20. Slider;

[0057] 21. Insert the rod;

[0058] 22. Second spring;

[0059] 23. Limit block;

[0060] 24. Activity block;

[0061] 25. Card block;

[0062] 26. First spring;

[0063] 27. Fixed rod;

[0064] 28, plug board; 2801, cavity; 2802, card block via;

[0065] 29, second stopper; 2901, second transverse rod; 2902, second vertical rod; 2903, third transverse rod; 2904, strip-shaped opening;

[0066] 30. Speak. DETAILED DESCRIPTION

[0067] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0068] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0070] like Figures 1 to 5As shown, the present invention provides an AC / DC synchronous switch, comprising a bottom shell 1 and an upper cover 8, wherein the upper cover 8 is disposed against the bottom shell 1, and a first locking structure of a snap-fit ​​type is disposed between the upper cover 8 and the bottom shell 1; the first locking structure can snap-fit ​​and lock the upper cover 8 and the bottom shell 1 by sliding and pushing, or can unlock by sliding and pushing;

[0071] A main board 11 is clamped at the inner bottom end of the bottom shell 1, and a plurality of connectors 7 are arranged on the main board 11. Through slots are respectively provided at positions corresponding to the connectors 7 on the upper cover 8, and the top of each connector 7 is clamped with the corresponding through slot; baffles 4 that can be rotatably opened or closed are respectively provided at each through slot on the upper cover 8, and each baffle 4 is independently arranged.

[0072] In the present invention, through slots and shielding plates capable of shielding the joints are respectively arranged above each joint, so that the joints to be used can be exposed separately, and the other joints can be effectively prevented from entering dust due to the shielding protection of the shielding plates, thereby ensuring smooth subsequent use; the first locking structure of the card-type connection can quickly separate the upper cover from the bottom shell, which is easy to operate and convenient for maintenance and repair of the mainboard;

[0073] The present invention solves the following technical problems existing in the prior art: multiple connectors in the AC / DC power supply switch are directly exposed to the outside, and unused connectors are easily filled with dust, affecting subsequent use; and the device casing is connected by multiple bolt thread locking connections. When disassembling and assembling, it is necessary to use matching tools to tighten the multiple bolts one by one, which is cumbersome, time-consuming and labor-intensive, and inconvenient to maintain and repair the internal mainboard.

[0074] Further, if Figure 2 , Figure 5 As shown, the first locking structure includes a first locking portion 15, a second locking portion 29, a movable ring 6, a transmission structure and a first limiting structure; the first locking portion is connected to the bottom surface of the upper cover 8 and can extend into the bottom shell 1; the second locking portion is arranged in the bottom shell 1 and can be rotatably locked or separated from the first locking portion; openings 30 are provided on both sides of the bottom shell 1, the movable ring 6 is sleeved on the outer wall of the bottom shell 1 and is located on the outside of the opening 30, and the movable ring 6 can be lifted and lowered along the side wall of the bottom shell 1, and the movable ring 6 can seal the opening 30 from the outside to prevent dust from entering the bottom shell 1 from the opening; the transmission structure is fixedly connected to a side of the movable ring 6 close to the bottom shell 1, and the transmission structure is passed through the opening 30, and the movable ring 6 drives the second locking portion 29 to rotate through the transmission structure; the first limiting structure is arranged on the outer wall of the bottom shell 1 and is located below the movable ring 6, and can lock the limiting movable ring 6.

[0075] Further, if Figure 2 , Figure 5As shown, the first locking portion 15 includes a first vertical rod 1501 and a first transverse rod 1502 connected to form an L-shaped structure, the top end of the first vertical rod 1501 is connected to the bottom surface of the upper cover 8, and the top surface of the first transverse rod 1502 forms a first locking surface.

[0076] Further, if Figure 2 , Figure 5 As shown, the second locking portion 29 includes a second transverse rod 2901, a second vertical rod 2902 and a third transverse rod 2903 connected to form a horizontal U-shaped structure, the bottom surface of the second transverse rod forms a second locking surface, and the second locking surface can be locked on the first locking surface; the second vertical rod 2902 is penetrated by a rotating rod 16, and the two ends of the rotating rod 16 are respectively hinged on the side walls of the bottom shell 1, and the second locking portion 29 can rotate around the rotating rod 16; the third transverse rod 2903 extends into the opening in the direction of the transmission structure, and the side wall of the third transverse rod 2903 is provided with a strip opening 2904, and one end of the transmission structure is hinged in the strip opening 2904.

[0077] Further, if Figure 2 As shown, the transmission structure includes a push plate 17 and a round pin 18. The first end of the push plate 17 is fixedly connected to the movable ring 6. The round pin 18 is connected to the side wall of the push plate 17 near the second end. The round pin 18 extends and is inserted into the strip opening 2904 (one end of the round pin 18 passes through the strip opening 2904).

[0078] Further, if Figure 2 , Figure 4 As shown, the first limiting structure includes two plug plates 28 respectively arranged on both sides of the movable ring 6, each plug plate 28 is respectively extended downward from the bottom surface of the movable ring 6, and a limiting block 23 is respectively arranged under each plug plate 28. Each limiting block 23 is fixedly connected to the outer wall of the bottom shell 1, and each limiting block 23 is provided with a through limiting hole, and each plug plate 28 can be respectively plugged and locked with the corresponding limiting hole.

[0079] Further, if Figure 2 , Figure 4 As shown, a cavity 2801 is provided at the lower end of the plug board 28, and a block through hole 2802 is provided on the side of the cavity 2801 away from the bottom shell; a movable block 24 that can slide and is fixed circumferentially is provided in the cavity 2801, and a block 25 is fixedly provided on the side of the movable block 24 facing the block through hole 2802, and the end of the block 25 away from the bottom shell 1 can extend to the outside of the cavity 2801 through the block through hole 2802, or be pushed inward and return to the cavity 2801, and the top surface of the block 25 is located at the position outside the cavity 2801 and is blocked and locked with the bottom surface of the limit block 23; a first spring 26 is provided on the end of the movable block 24 away from the block 25, and the end of the first spring 26 away from the movable block 24 is connected to the side wall of the cavity 2801.

[0080] Further, if Figure 2 , Figure 4 As shown, a fixing rod 27 is disposed in the cavity 2801 , and the movable block 24 and the first spring 26 are movably sleeved on the fixing rod 27 , so that the movable block 24 can slide stably.

[0081] Furthermore, the longitudinal sections of the movable block 24 and the cavity 2801 are both rectangular, so that the movable block 24 cannot rotate, that is, it can slide stably.

[0082] Further, if Figure 2 , Figure 4 As shown, a side of the clamping block 25 away from the bottom shell 1 is provided with an inclined surface from the bottom end upwards, so that the inserting plate 28 can be smoothly inserted into the limiting block 23 .

[0083] Pushing the block 25 into the inner side of the cavity 2801 can pull the movable ring 6 upward, so that the push plate 17 drives the round pin 18 to move upward, and the round pin 18 moves upward, thereby driving the third transverse rod 2903 to rotate upward at one end close to the movable ring 6, and the second locking portion 29 (U-shaped rod) rotates around the rotating rod 16, and the second locking portion 29 rotates and separates from the first locking portion 15, thereby releasing the limit on the upper cover 8, and being able to separate the upper cover 8 from the bottom shell 1, making it convenient to maintain and repair the mainboard 11.

[0084] Furthermore, each shielding plate 4 is respectively connected to a second locking structure for limiting the rotation of the shielding plate 4 .

[0085] Further, if Figure 1 As shown, the upper cover 8 is provided with a hinge seat 2 at one side of each through slot, and the hinge seat 2 adopts a U-shaped plate structure, and is extended all the way to one side of each through slot; a hinge shaft 3 is fixedly provided on the hinge seat 2, and the hinge shaft 3 is a cross bar structure; one end of each shielding plate 4 is hinged on the hinge shaft 3 (one end of the shielding plate 4 is rotatably sleeved with the rod wall of the cross bar), and a second locking structure is connected between the shielding plate 4 and the hinge shaft 3, and the second locking structure adopts a plug-in structure, and the second locking structure limits the rotation of the shielding plate 4 relative to the cross bar.

[0086] Further, if Figure 2 , Figure 3 As shown, the first locking structure includes a fixed shell 19 fixed on the side wall of the baffle plate 4, an insertion rod 21 that can slide along the fixed shell 19, and a socket arranged on the hinge shaft 3. The insertion rod 21 is inserted into the socket to lock the baffle plate 4, or the insertion rod 21 leaves the socket to unlock the baffle plate 4.

[0087] Further, if Figure 2 , Figure 3As shown, the insertion rod 21 is slidably inserted through the side walls of the opposite ends of the fixed shell 19 (that is, both ends of the insertion rod 21 extend to the outside of the fixed shell 19), and a slider 20 is sleeved on the position of the insertion rod 21 located inside the fixed shell 19. Specifically, the insertion rod 21 is fixedly sleeved on the middle part of the slider 20; the insertion rod 21 is located on the side of the slider 20 away from the insertion hole and is sleeved with a second spring 22, and the two ends of the second spring 22 are respectively pressed against the end face of the slider 20 and the side wall of the fixed shell 19; a pull block is provided at the end of the insertion rod 21 away from the insertion hole to facilitate pulling the insertion rod 21.

[0088] By pulling the insertion rod 21, the insertion rod 21 is separated from the hinge shaft 3 (cross bar), that is, the limit lock on the baffle plate 4 is released, and the baffle plate 4 can be rotated open with the cross bar as the axis to expose the joints that need to be used separately. Other joints can be effectively prevented from dust entry due to the shielding protection of the baffle plate 4.

[0089] Further, if Figure 1 , Figure 2 As shown, a shielding pad 5 is fixedly provided on the bottom surface of each shielding plate 4, and each shielding pad 5 is respectively in conflict with the top of each joint 7. Specifically, each shielding pad 5 is a rubber pad, and the shielding pad 5 is in flexible contact with each joint 7 to prevent the joint 7 from being crushed.

[0090] Furthermore, a third locking structure is provided between each connector 7 and the main board 11 .

[0091] Further, if Figure 2 As shown, the third locking structure includes two rotating vertical rods 14 respectively arranged on the top surface of the main board 11 and located on both sides of the joint 7, and the top of each rotating vertical rod 14 is respectively connected with a stopper 12 that can be rotatably engaged with the side wall of the joint 7. Specifically, the side wall of the joint 7 is provided with a slot, and one end of the stopper 12 is engaged with the corresponding slot; a torsion spring 13 is sleeved on the rotating vertical rod 14, and the two ends of the torsion spring 13 are respectively fixedly connected to the rotating vertical rod 14 and the main board 11, and the two ends of the torsion spring 13 are provided with connecting rods, and here the connecting rods at the two ends are respectively fixedly connected to the rotating vertical rod 14 and the main board 11.

[0092] By overcoming the elastic force of the torsion spring 13 and rotating the rotating vertical rod 14 , the stopper 12 can be moved out of the slot, thereby releasing the position limit of the docking joint 7 and facilitating the disassembly and replacement of the docking joint 7 .

[0093] Further, if Figure 2 As shown, pins 10 are fixedly disposed on both sides of the bottom of each connector 7 , and pads 9 are disposed at positions corresponding to the pins 10 on the mainboard 11 , and each pin 10 is plugged into the corresponding pad 9 .

[0094] Example

[0095] The working principle of the AC / DC synchronous switch of the present invention is:

[0096] When a certain joint 7 is needed, pull the plug rod 21 of its corresponding first locking structure to separate the plug rod 21 from the hinge shaft 3 (cross bar), release the limit on the baffle plate 4, and rotate the baffle plate 4 around the hinge shaft 3 (cross bar) to open it, so that the joint 7 that needs to be used can be exposed separately. Other joints 7 can be effectively prevented from dust entry due to the shielding protection of the baffle plate 4.

[0097] When the mainboard 11 needs to be maintained and repaired, the block 12 is pushed into the inner side of the cavity 2801, the movable ring 6 is pulled upward, the push plate 17 drives the round pin 18 to move upward, and the round pin 18 drives the second locking portion 29 to rotate with the rotating rod 16 as the axis, so that the second locking portion 29 is separated from the first locking portion 15, and the limit on the upper cover 8 is released, so that the upper cover 8 can be separated from the bottom shell 1, which is convenient for maintenance and repair of the mainboard 11.

[0098] When the connector 7 needs to be replaced, the elastic force of the torsion spring 13 is overcome, the aforementioned rotating vertical rod 14 is rotated, and the stopper 12 is removed from the slot of the connector 7 to release the limit of the connector 7, making it convenient to disassemble and replace the connector 7.

[0099] As described above, the AC / DC synchronous switch of the present invention has the following beneficial effects:

[0100] In the present invention, through grooves and shielding plates are respectively arranged above each connector, so that the connectors that need to be used can be exposed separately. Other connectors can be effectively prevented from dust entry due to the shielding protection of the shielding plates, thereby ensuring subsequent smooth use; the first snap-on locking structure can quickly separate the upper cover from the bottom shell, which is simple to operate and convenient for maintenance and repair of the mainboard.

[0101] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An AC / DC synchronous switch, characterized in that: It includes a bottom shell and an upper cover, the upper cover is arranged on the bottom shell to abut against each other, and a first clamping locking structure is arranged between the upper cover and the bottom shell; the inner bottom end of the bottom shell is clamped with a main board, and a plurality of joints are arranged on the main board, and through grooves are respectively provided at positions of the upper cover corresponding to each of the joints, and the top of each of the joints is clamped with the corresponding through groove; the upper cover is respectively provided with a shielding plate at each of the through grooves, which can be rotated to open and expose or close and protect each of the joints, and each of the shielding plates is arranged independently of each other.

2. The AC / DC synchronous switch according to claim 1, characterized in that: The first locking structure includes a first locking portion, a second locking portion, a movable ring, a transmission structure and a first limiting structure; the first locking portion is connected to the bottom surface of the upper cover and can extend into the bottom shell; the second locking portion is arranged in the bottom shell and can be rotatably locked or separated from the first locking portion; openings are provided on both sides of the bottom shell, the movable ring is sleeved on the outer wall of the bottom shell and is located on the outside of the opening, and the movable ring can be lifted and lowered along the side wall of the bottom shell, the transmission structure is fixedly connected to a side of the movable ring close to the bottom shell, and the transmission structure is passed through the opening, and the movable ring drives the second locking portion to rotate through the transmission structure; the first limiting structure is arranged on the outer wall of the bottom shell and is located below the movable ring, and can lock and limit the movable ring.

3. The AC / DC synchronous switcher according to claim 2, characterized in that: The first stop portion includes a first vertical rod and a first transverse rod connected to form an L-shaped structure, the top end of the first vertical rod is connected to the bottom surface of the upper cover, and the top surface of the first transverse rod forms a first stop surface.

4. The AC / DC synchronous switcher according to claim 3, characterized in that: The second stopping portion includes a second transverse rod, a second vertical rod and a third transverse rod connected to form a horizontal U-shaped structure, the bottom surface of the second transverse rod forms a second stopping surface, and the second stopping surface can be stopped on the first stopping surface; a rotating rod is passed through the second vertical rod, and the two ends of the rotating rod are respectively hinged on the side walls of the bottom shell, and the second stopping portion can rotate around the rotating rod; the third transverse rod extends toward the direction of the transmission structure into the opening, and the side wall of the third transverse rod is provided with a strip opening, and one end of the transmission structure is hinged in the strip opening.

5. The AC / DC synchronous switcher according to claim 4, characterized in that: The transmission structure includes a push plate and a round pin. The first end of the push plate is fixedly connected to the movable ring. The side wall of the push plate close to the second end is connected to the round pin. The round pin extends and is inserted into the strip-shaped opening.

6. The AC / DC synchronous switcher according to claim 4, characterized in that: The first limiting structure includes two plug plates respectively arranged on both sides of the movable ring, each of the plug plates is respectively extended downward from the bottom surface of the movable ring, and a limiting block is respectively arranged under each of the plug plates, each of the limiting blocks is fixedly connected to the outer wall of the bottom shell, and each of the limiting blocks is provided with a through limiting hole, and each of the plug plates can be respectively plugged and locked with the corresponding limiting hole.

7. The AC / DC synchronous switcher according to claim 6, characterized in that: A cavity is formed at the lower end of the plug board, and a card block through hole is formed on a side of the cavity away from the bottom shell; A movable block that can slide and is fixed circumferentially is provided in the cavity, a block is fixedly provided on the side of the movable block facing the block through hole, an end of the block away from the bottom shell can extend to the outside of the cavity through the block through hole, or be pushed inward and return to the cavity, and the top surface of the block is located at a position outside the cavity and is abutted and locked against the bottom surface of the limit block; a first spring is provided at one end of the movable block away from the block, and one end of the first spring away from the movable block is connected to the side wall of the cavity.

8. The AC / DC synchronous switcher according to claim 7, characterized in that: A fixing rod is arranged in the cavity, and the movable block and the first spring are movably sleeved on the fixing rod.

9. The AC / DC synchronous switcher according to claim 7, characterized in that: The longitudinal sections of the movable block and the cavity are both rectangular.

10. The AC / DC synchronous switcher according to claim 7, characterized in that: A side of the block away from the bottom shell is provided with an inclined surface upward from the bottom end.

11. The AC / DC synchronous switcher according to claim 1, characterized in that: Each of the shielding plates is respectively connected to a second locking structure that limits the rotation of the shielding plate.

12. The AC / DC synchronous switch according to claim 11, characterized in that: The upper cover is provided with a hinge seat on one side of each through slot, a hinge shaft is fixedly provided on the hinge seat, one end of each shielding plate is hinged on the hinge shaft, and the second locking structure is connected between the shielding plate and the hinge shaft.

13. The AC / DC synchronous switcher according to claim 12, characterized in that: The first locking structure includes a fixed shell fixedly arranged on the side wall of the shielding plate, a plug rod that can slide along the fixed shell, and a socket arranged on the hinge shaft. The plug rod is inserted into the socket to lock the shielding plate, or the plug rod leaves the socket to unlock the shielding plate.

14. The AC / DC synchronous switcher according to claim 13, characterized in that: The insertion rod is slidably inserted through the side walls at opposite ends of the fixed shell, and a slider is sleeved on the position of the insertion rod located inside the fixed shell, and a second spring is sleeved on the side of the insertion rod located away from the insertion hole, and the two ends of the second spring are respectively pressed against the end surface of the slider and the side wall of the fixed shell; a pull block is set at the end of the insertion rod away from the insertion hole.

15. The AC / DC synchronous switcher according to claim 1, characterized in that: A shielding pad is fixedly provided on the bottom surface of each shielding plate, and each shielding pad is respectively in conflict with the top end of each joint.

16. The AC / DC synchronous switcher according to claim 15, characterized in that: The shielding pad is a rubber pad.

17. The AC / DC synchronous switcher according to claim 1, characterized in that: A third locking structure is arranged between each of the connectors and the main board.

18. The AC / DC synchronous switcher according to claim 17, characterized in that: The third locking structure includes two rotating vertical rods respectively arranged on the top surface of the main board and located on both sides of the joint, and the top of each rotating vertical rod is respectively connected to a stopper that can be rotatably engaged with the side wall of the joint; a torsion spring is sleeved on the rotating vertical rod, and the two ends of the torsion spring are respectively fixedly connected to the rotating vertical rod and the main board.

19. The AC / DC synchronous switcher according to claim 1, characterized in that: Pins are fixedly arranged on both sides of the bottom of each connector, and soldering pads are arranged at positions corresponding to each pin on the mainboard, and each pin is plugged into the corresponding soldering pad.

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