Self-locking structure of power converter

Abstract

The utility model relates to the technical field of power converters, in particular to a self-locking structure of a power converter, which comprises a shell, a clamping groove is formed in one side of the shell, mounting holes are formed between the tops of the inner walls of the two ends of the clamping groove and the inner wall of the shell, and the inner walls of the mounting holes are rotatably connected with mounting shafts. A steering plug is fixedly mounted between the two mounting shafts, a turntable is fixed at one end of one of the mounting shafts, the cross section of the turntable is I-shaped, a positioning hole is formed in one side of the middle position of the inner wall of the turntable, and a fixed frame is fixedly mounted on the inner wall, close to the turntable, of the shell. According to the utility model, the function of automatically locking the steering plug of the power converter in use is realized, the stability of the steering plug when the steering plug is inserted into a power socket is ensured, the safety effect is improved, the transverse plug structure can be automatically locked in use, and the stability of the transverse plug structure when the transverse plug structure is inserted into the power socket is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power converters, in particular to a self-locking structure of a power converter. Background Art

[0002] A power converter is an electronic device used to convert one power source to another to meet the energy needs of a specific device or system. It is usually used to convert AC power to DC power, or convert one voltage level to another. A power converter usually consists of three parts: an input terminal, a control circuit, and an output terminal. When the input terminal receives the power input, the control circuit adjusts and converts the input power, and then outputs the converted power to the output terminal for use by the device or system. Power converters can provide stable power for communication systems, industrial control systems, medical equipment, automotive electronic equipment, new energy, household appliances, etc., including network communication equipment, PLC, electronic treatment equipment, car video systems, TVs, LED lights, LED displays, etc.

[0003] At present, the standards and shapes of power sockets and electrical appliance plugs are not uniform around the world, and people often use power converters for adaptation. When using a certain specification of plug, for safety reasons, a plug locking device must be set on the power converter to prevent plugs of other specifications from being extended at the same time and causing electrical safety problems. However, there is no good locking device on the steering plug of the power converter. When plugged into the power socket, there is still a shaking problem and poor stability. Therefore, it is urgent to design a self-locking structure of the power converter to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a self-locking structure of a power converter to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A self-locking structure of a power converter comprises a shell, a card slot is provided on one side of the shell, and mounting holes are provided between the tops of the inner walls at both ends of the card slot and the inner wall of the shell, the inner walls of the mounting holes are rotatably connected with mounting shafts, a steering plug is fixedly installed between the two mounting shafts, a turntable is fixed at one end of one of the mounting shafts, and the cross-section of the turntable is I-shaped, a positioning hole is provided on one side of the middle position of the inner wall of the turntable, a fixing frame is fixedly installed on the inner wall of the shell near the turntable, and a through hole is inserted at the top of the fixing frame, and a positioning rod is inserted on the inner wall of the through hole, the position of the positioning rod corresponds to the position of the positioning hole, the positioning rod is ninety degrees to the positioning hole, and a first locking component is provided at the bottom of the positioning rod.

[0007] Furthermore, the first locking assembly includes a lifting plate attached to the inner walls of the fixed frame, and a plurality of second springs are fixed between the bottom of the lifting plate and the bottom of the fixed frame, a lifting seat is fixed to one side of the top of the lifting plate, and an extrusion assembly is provided on one side of the lifting seat.

[0008] Furthermore, the extrusion assembly includes a mounting groove opened on the outer wall of one side of the shell, and a through opening is opened between one side of the mounting groove and one side of the fixed frame, a second pressing seat is fitted on the inner walls around the mounting groove, a pressing rod passing through the through opening is fixed on one side of the second pressing seat, and a third spring is fixed between the four corners of one side of the second pressing seat and the four corners of the inner wall of one side of the mounting groove, an extrusion seat is fixed on one end of the pressing rod extending into the fixed frame, and the extrusion seat is located above the lifting seat, and one side of the extrusion seat and one side of the lifting seat are designed to be parallel to each other in an inclined plane.

[0009] Furthermore, two inlets and outlets are provided at the bottom of one side of the shell, and a transverse plug structure is provided inside the two inlets and outlets and at the bottom of the shell, and a second locking assembly is provided at the bottom of the transverse plug structure.

[0010] Furthermore, the horizontal plug structure includes a conductive core arranged in the shell, and an insulating sleeve is provided on the outer wall of the conductive core. Two plugs passing through the insulating sleeve are fixed on one side of the conductive core, and one end of the plug is inserted into the inside of the inlet and outlet. Power sockets extending from the insulating sleeve are fixed on both sides of the top of the conductive core.

[0011] Furthermore, the second locking assembly includes a guide groove opened at the bottom of the shell, and a movable seat inserted in the guide groove is fixed to the bottom of the insulating sleeve, L-shaped grooves are opened between the top of the outer walls on both sides of the movable seat and the two sides of the bottom, positioning blocks are inserted inside the L-shaped grooves, and the bottom of the positioning block is fixed with the same first pressing seat, two first positioning grooves and two second positioning grooves are opened at the bottom of the shell, and the two first positioning grooves and the two second positioning grooves are distributed on both sides of the guide groove, one end of the two positioning blocks is inserted into the inside of the two first positioning grooves, a limiting block is fixed to the top of one side of the movable seat, and the distance between one end of the limiting block and the inner wall of one side of the shell is the same as the distance between the first positioning groove and the second positioning groove.

[0012] Furthermore, a guide hole is opened in the middle position of the movable seat, and a guide rod passing through the guide hole is fixed between the inner walls at both ends of the guide groove, and a first spring sleeved on the outer wall of the guide rod is fixed between one side of the movable seat and the inner wall of one end of the guide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, when the steering plug on the power converter is used, the steering plug is rotated 90 degrees, so that the positioning rod rises and is inserted into the positioning hole under the reset action of the second spring, thereby realizing the function of automatically locking the steering plug of the power converter in use, ensuring the stability of the steering plug when it is inserted into the power socket, and improving the safety effect;

[0015] In the utility model, the transverse plug structure can be automatically locked when in use, thereby ensuring the stability of the transverse plug structure when inserted into a power socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a self-locking structure of a power converter.

[0017] Figure 2 The figure is a rear view of a self-locking structure of a power converter.

[0018] Figure 3 The figure is an overall cross-sectional view of a self-locking structure of a power converter.

[0019] Figure 4 The present invention is a schematic diagram of a positioning hole and a positioning rod structure of a self-locking structure of a power converter.

[0020] Figure 5 The present invention is a schematic diagram of a movable seat and a positioning card block structure of a self-locking structure of a power converter.

[0021] Figure 6 The present invention is a schematic diagram of the first positioning groove and the second positioning groove structure of a self-locking structure of a power converter.

[0022] Figure 7 The figure is a schematic diagram of a limit block and an L-shaped groove structure of a self-locking structure of a power converter.

[0023] In the figure: 1, shell; 2, first pressing seat; 3, guide groove; 4, card slot; 5, steering plug; 6, second pressing seat; 7, horizontal plug structure; 701, insulating sleeve; 702, plug; 703, power socket; 704, conductive core; 8, inlet and outlet; 9, installation shaft; 10, turntable; 11, installation groove; 12, positioning block; 13, positioning hole; 14, positioning rod; 15, fixing frame; 16, lifting plate; 17, second spring; 18, lifting seat; 19, third spring; 20, pressing rod; 21, extrusion seat; 22, movable seat; 23, guide rod; 24, first spring; 25, first positioning groove; 26, second positioning groove; 27, limit block; 28, L-shaped groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 7 In the embodiment of the utility model, a self-locking structure of a power converter includes a housing 1, a card slot 4 is provided on one side of the housing 1, and mounting holes are provided between the tops of the inner walls of both ends of the card slot 4 and the inner wall of the housing 1, the inner walls of the mounting holes are rotatably connected with mounting shafts 9, a steering plug 5 is fixedly installed between the two mounting shafts 9, a turntable 10 is fixed at one end of one of the mounting shafts 9, and the cross section of the turntable 10 is I-shaped, a positioning hole 13 is provided on one side of the middle position of the inner wall of the turntable 10, and the housing 1 is close to the turntable. A fixing frame 15 is fixedly installed on the inner wall of the tray 10, and a through hole is inserted at the top of the fixing frame 15, and a positioning rod 14 is inserted on the inner wall of the through hole. The position of the positioning rod 14 corresponds to the position of the positioning hole 13, and the positioning rod 14 and the positioning hole 13 are 90 degrees apart. A first locking component is arranged at the bottom of the positioning rod 14, and the first locking component includes a lifting plate 16 attached to the inner wall around the fixing frame 15, and a plurality of second springs 17 are fixed between the bottom of the lifting plate 16 and the bottom of the fixing frame 15, and the top of the lifting plate 16 A lifting seat 18 is fixed on one side, and an extrusion assembly is arranged on one side of the lifting seat 18. The extrusion assembly includes a mounting groove 11 opened on the outer wall of one side of the shell 1, and a through opening is opened between one side of the mounting groove 11 and one side of the fixed frame 15. The inner wall around the mounting groove 11 is fitted with a second pressing seat 6, and a pressing rod 20 passing through the through opening is fixed on one side of the second pressing seat 6. A third spring 19 is fixed between the four corners of one side of the second pressing seat 6 and the four corners of the inner wall of one side of the mounting groove 11. The pressing rod 20 extends into the fixed frame 15. An extrusion seat 21 is fixed at one end thereof, and the extrusion seat 21 is located above the lifting seat 18. One side of the extrusion seat 21 and one side of the lifting seat 18 are designed to be parallel to each other in an inclined plane. When the steering plug 5 on the power converter is used, the steering plug 5 is rotated ninety degrees, driving the mounting shaft 9, the turntable 10 and the positioning hole 13 to rotate ninety degrees, so that the positioning rod 14 rises and is inserted into the positioning hole 13 under the resetting action of the second spring 17, thereby realizing the function of automatically locking the steering plug 5 of the power converter in use.

[0026] Specifically, two inlets and outlets 8 are provided at the bottom of one side of the shell 1, and a transverse plug structure 7 is provided inside the two inlets and outlets 8 and at the bottom of the shell 1, the transverse plug structure 7 includes a conductive core 704 provided in the shell 1, and an insulating sleeve 701 is provided on the outer wall of the conductive core 704, two plugs 702 passing through the insulating sleeve 701 are fixed on one side of the conductive core 704, one end of the plug 702 is plugged into the inside of the inlet and outlet 8, and power receiving sockets 703 extending from the insulating sleeve 701 are fixed on both sides of the top of the conductive core 704, and a second locking component is provided at the bottom of the transverse plug structure 7, the second locking component includes a guide groove 3 provided at the bottom of the shell 1, and a movable seat 22 inserted into the guide groove 3 is fixed at the bottom of the insulating sleeve 701, L-shaped grooves 28 are provided between the top and the bottom of the outer walls of both sides of the movable seat 22, positioning blocks 12 are plugged into the inside of the L-shaped grooves 28, and the bottom of the positioning blocks 12 is fixed with With the same first pressing seat 2, two first positioning grooves 25 and two second positioning grooves 26 are provided at the bottom of the shell 1, and the two first positioning grooves 25 and the two second positioning grooves 26 are distributed on both sides of the guide groove 3, one end of the two positioning blocks 12 is inserted into the inside of the two first positioning grooves 25, a limiting block 27 is fixed to the top of one side of the movable seat 22, and the distance between one end of the limiting block 27 and the inner wall of one side of the shell 1 is the same as the distance between the first positioning groove 25 and the second positioning groove 26. When using the transverse plug structure 7 on the power converter, the height of the first pressing seat 2 is pressed to make the positioning block 12 disengage from the first positioning groove 25, and push the first pressing seat 2, the first spring 24 contracts, and the plug 702 in the transverse plug structure 7 is moved out of the inlet and outlet 8, at this time, the positioning block 12 will be stuck in the second positioning groove 26 under the action of its own gravity, so that the transverse plug structure 7 can be automatically locked.

[0027] Specifically, a guide hole is opened in the middle position of the movable seat 22, and a guide rod 23 passing through the guide hole is fixed between the inner walls at both ends of the guide groove 3, and a first spring 24 sleeved on the outer wall of the guide rod 23 is fixed between one side of the movable seat 22 and the inner wall at one end of the guide groove 3. The stability of the transverse plug structure 7 when moving in the shell 1 is guaranteed by the guiding effect of the guide rod 23 and the guide hole, and the automatic resetting of the transverse plug structure 7 is facilitated by the telescopic performance of the first spring 24.

[0028] The working principle of the utility model is as follows: when the steering plug 5 on the power converter is used, the steering plug 5 is rotated 90 degrees, driving the mounting shaft 9, the turntable 10 and the positioning hole 13 to rotate 90 degrees, so that the positioning rod 14 rises and is inserted into the positioning hole 13 under the reset action of the second spring 17, and also makes the lifting seat 18 fit on the extrusion seat 21, so as to realize the function of automatically locking the steering plug 5 of the power converter in use. When the steering plug 5 is not in use, the second pressing seat 6 in the extrusion assembly is pressed, and the pressing rod 20 and the extrusion seat 21 are pressed synchronously to move, so that the height of the lifting seat 18, the lifting plate 16 and the positioning rod 14 is reduced by the pressing action of the extrusion seat 21, so that the positioning The rod 14 disengages from the positioning hole 13, and then rotates in the opposite direction to the steering plug 5 by ninety degrees to reset it; when using the transverse plug structure 7 on the power converter, the user presses the height of the first pressing seat 2 to make the positioning block 12 disengage from the first positioning groove 25, and pushes the first pressing seat 2, the first spring 24 contracts, and the plug 702 in the transverse plug structure 7 is moved out of the inlet and outlet 8. At this time, the positioning block 12 will be stuck in the second positioning groove 26 under the action of its own gravity, so that the transverse plug structure 7 can be automatically locked. When the transverse plug structure 7 is not in use, the height of the first pressing seat 2 is pressed, and the transverse plug structure 7 is reset under the reset action of the first spring 24, which is convenient to use.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A self-locking structure of a power converter, comprising a housing (1), characterized in that: A card slot (4) is provided on one side of the shell (1), and mounting holes are provided between the top of the inner wall at both ends of the card slot (4) and the inner wall of the shell (1), the inner walls of the mounting holes are rotatably connected with mounting shafts (9), a steering plug (5) is fixedly installed between the two mounting shafts (9), a turntable (10) is fixed on one end of one of the mounting shafts (9), and the cross section of the turntable (10) is I-shaped, and a positioning hole (13) is provided on one side of the middle position of the inner wall of the turntable (10), a fixing frame (15) is fixedly installed on the inner wall of the shell (1) close to the turntable (10), and a through hole is inserted at the top of the fixing frame (15), and a positioning rod (14) is inserted into the inner wall of the through hole, the position of the positioning rod (14) corresponds to the position of the positioning hole (13), the positioning rod (14) and the positioning hole (13) are at a 90-degree angle, and a first locking component is provided at the bottom of the positioning rod (14).

2. The self-locking structure of a power converter according to claim 1, characterized in that: The first locking assembly comprises a lifting plate (16) which is attached to the inner walls of the fixed frame (15), and a plurality of second springs (17) are fixed between the bottom of the lifting plate (16) and the bottom of the fixed frame (15), a lifting seat (18) is fixed to one side of the top of the lifting plate (16), and a pressing assembly is arranged on one side of the lifting seat (18).

3. The self-locking structure of a power converter according to claim 2, characterized in that: The extrusion assembly comprises a mounting groove (11) provided on an outer wall of one side of the shell (1), and a through opening is provided between one side of the mounting groove (11) and one side of the fixed frame (15), a second pressing seat (6) is fitted on the inner walls around the mounting groove (11), a pressing rod (20) passing through the through opening is fixed on one side of the second pressing seat (6), a third spring (19) is fixed between four corners of one side of the second pressing seat (6) and four corners of the inner wall of one side of the mounting groove (11), an extrusion seat (21) is fixed to one end of the pressing rod (20) extending into the fixed frame (15), and the extrusion seat (21) is located above the lifting seat (18), and one side of the extrusion seat (21) and one side of the lifting seat (18) are designed to be parallel to each other in an inclined plane shape.

4. The self-locking structure of a power converter according to claim 1, characterized in that: Two inlets and outlets (8) are provided at the bottom of one side of the shell (1), and a transverse plug structure (7) is provided inside the two inlets and outlets (8) and at the bottom of the shell (1), and a second locking component is provided at the bottom of the transverse plug structure (7).

5. The self-locking structure of a power converter according to claim 4, characterized in that: The transverse plug structure (7) comprises a conductive core (704) arranged in a housing (1), and an insulating sleeve (701) is arranged on the outer wall of the conductive core (704); two plugs (702) passing through the insulating sleeve (701) are fixed on one side of the conductive core (704); one end of the plug (702) is plugged into the inside of the inlet and outlet (8); and power sockets (703) extending from the insulating sleeve (701) are fixed on both sides of the top of the conductive core (704).

6. The self-locking structure of a power converter according to claim 5, characterized in that: The second locking assembly comprises a guide groove (3) provided at the bottom of the housing (1), and a movable seat (22) inserted into the guide groove (3) is fixed at the bottom of the insulating sleeve (701), L-shaped grooves (28) are provided between the top of the outer walls on both sides and the two sides of the bottom of the movable seat (22), positioning blocks (12) are inserted into the inside of the L-shaped grooves (28), and the bottom of the positioning blocks (12) is fixed with the same first pressing seat (2), and the bottom of the housing (1) is provided with two first positioning grooves (25) and two second positioning grooves (26), and the two first positioning grooves (25) and the two second positioning grooves (26) are distributed on both sides of the guide groove (3), one end of the two positioning blocks (12) is inserted into the inside of the two first positioning grooves (25), a limiting block (27) is fixed on the top of one side of the movable seat (22), and the distance between one end of the limiting block (27) and the inner wall of one side of the shell (1) is the same as the distance between the first positioning groove (25) and the second positioning groove (26).

7. The self-locking structure of a power converter according to claim 6, characterized in that: A guide hole is provided in the middle of the movable seat (22), and a guide rod (23) passing through the guide hole is fixed between the inner walls at both ends of the guide groove (3), and a first spring (24) sleeved on the outer wall of the guide rod (23) is fixed between one side of the movable seat (22) and the inner wall at one end of the guide groove (3).

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