CN218335722U

CN218335722U - Secondary feedback constant current switch power supply

Info

Publication number: CN218335722U
Application number: CN202221926006.8U
Authority: CN
Inventors: 刘和德; 赵江苏
Original assignee: Huajie Hengxin Shandong Electronic Technology Co ltd
Current assignee: Huajie Hengxin Shandong Electronic Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-17
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a secondary side feedback constant current switch power supply, which belongs to the technical field of switch power supplies and comprises a switch power supply main body, wherein a rotating block is arranged on the switch power supply main body, a protective cover is arranged on the rotating block in a rotating way and is used for isolating and protecting a binding post on the switch power supply main body, two extension plates are fixed on the side surface of the protective cover, and a locking piece matched with the extension plates for use is arranged on the side surface of the switch power supply main body; through setting up protection casing cooperation turning block and using, the protection casing can rotate and close the cooperation closure plate and come isolated protection to terminal place space, the protecting effect is good, and utilize locking spring cooperation locking plate to use and can lock the protection casing after the rotation is closed, can rotate the closure plate that expandes the protection casing and take off corresponding position department when using and carry out the use of working a telephone switchboard, close the protection casing once more after the wiring and protect, effectively avoid the interference influence that factors such as external dust led to the fact to the terminal.

Description

Secondary feedback constant current switch power supply

Technical Field

The utility model belongs to the technical field of switching power supply, concretely relates to secondary side feedback constant current switching power supply.

Background

A switch mode power supply, also called switching power supply, is a high frequency power conversion device, and is a kind of power supply. The function is to convert a level voltage into a voltage or current required by the user terminal through different types of architectures. The input of the switching power supply is mostly an ac power supply or a dc power supply, and the output is mostly a device requiring a dc power supply, such as a personal computer, and the switching power supply performs voltage and current conversion between the two.

The feedback modes of the switching power supply comprise primary side feedback and secondary side feedback, wherein the secondary side feedback is used for the flyback switching power supply, and an auxiliary coil is used for extracting an output voltage signal on the secondary side coil. The voltage on the auxiliary coil and the secondary coil is related to the turn ratio, and at the demagnetizing end point of the secondary coil, the output voltage of the power supply is equal to the voltage on the secondary coil, the feedback voltage signal is sampled and processed by the control chip to obtain an ideal PWM control signal for controlling the switching of the primary side power tube, and the switching time of the power tube determines the energy storage amount on the transformer, so that the magnitude of the secondary output voltage is directly influenced. By utilizing the series of feedback relations, stable voltage output can be finally obtained.

When secondary side feedback constant current switch power supply used, lacked the isolated protection machanism to the terminal, the terminal exposes and gathers impurity such as dust easily, influences later stage wiring normal use, and lacks and cleans the effectual dust removal of bar louvre mechanism, and the function is imperfect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a secondary side feedback constant current switch power supply to what provide in solving above-mentioned background art when secondary side feedback constant current switch power supply uses, lacks the isolated protection machanism to the terminal, and the terminal exposes and gathers impurity such as dust easily, influences later stage wiring normal use, and lacks the effectual dust removal of bar louvre and clean the mechanism, the incomplete problem of function.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a secondary side feedback constant current switch power supply, includes the switching power supply main part, install the turning block in the switching power supply main part, rotate on the turning block and install the protection casing, the protection casing is used for carrying out isolated protection to the terminal in the switching power supply main part, the side of protection casing is fixed with two extension boards, the side of switching power supply main part is provided with the retaining member that uses with the extension board cooperation, the left and right sides face of switching power supply main part all is fixed with the mounting panel, mounting bolt is installed to the screw thread on the mounting panel, the upper surface of switching power supply main part has a plurality of bar louvres, surface mounting has the installation shell on the switching power supply main part, the left and right sides face of installation shell all is provided with the backup pad, the backup pad below is provided with cleans the brush, the brush hair of brush is laminated with the upper surface of switching power supply main part mutually, just to the position department of terminal has seted up the cable through channel on the protection casing, just to the position department that the cable runs through the channel is provided with the closure plate in the switching power supply main part.

Adopt above-mentioned scheme, use through setting up protection casing cooperation turning block, the protection casing can rotate and close cooperation shutoff board and come isolated protection to terminal place space, the protecting effect is good, and utilize locking spring cooperation locking board to use and can lock the protection casing after the rotation is closed, can rotate the expansion protection casing and take off the shutoff board of corresponding position department and carry out the wiring use when using, close the protection casing once more after the wiring and protect, effectively avoid the interference influence that factors such as external dust led to the fact the terminal, rotate through setting up reciprocating screw and order about the movable plate and drive backup pad reciprocating motion back and forth, and then drive through the backup pad and clean brush reciprocating motion back and forth and clean the dust on switch power supply main body surface, can effectively avoid the dust to gather near bar louvre and influence radiating phenomenon.

In the above scheme, it should be noted that the micro motor is electrically connected to an external power source.

As a preferred embodiment, the retaining member includes a fixed block fixed on the side of the switching power supply body, a locking rod slidably penetrating through the fixed block, a locking operation plate installed on the top end of the locking rod, a locking plate installed at the bottom end of the locking rod, a locking spring sleeved on the outer surface of the locking rod and connected with the fixed block and the locking plate at two ends respectively, and a locking groove for inserting the locking plate is formed in the extension plate.

Adopt above-mentioned scheme, utilize the check lock lever on the fixed block to drive the locking board and slide from top to bottom, the elasticity effect that utilizes locking spring can order about the locking board when moving card income to the locking inslot, accomplishes the locking to the extension board, and then can lock the protection casing after the rotation is closed, locking simple structure, convenient operation.

As a preferred embodiment, the lower fixed surface of shutoff board has a plurality of reference column, offer on the switching power supply main part and supply reference column male constant head tank, the surface mounting of shutoff board has sealed offset plate, the inner wall that the cable runs through the passageway is seted up and is supplied sealed offset plate male seal groove.

Adopt above-mentioned scheme, utilize the reference column to insert in the constant head tank can install the shutoff board to utilize setting up of sealed offset plate to cooperate the seal groove to use, make the protection casing rotate and close the back can be fine completely cut off the protection to the terminal, and only need take off the shutoff board of corresponding position department when needs wiring and just can work a telephone switchboard the use.

As a preferred embodiment, two rotating shafts are rotatably mounted in the mounting shell, an end of one of the rotating shafts is fixedly connected with an output shaft of a micro motor fixed on a side surface of the mounting shell, a reciprocating lead screw is fixed between the two rotating shafts, a moving plate is mounted on an outer surface of the reciprocating lead screw in a threaded manner, and an end of the supporting plate passes through a strip-shaped hole formed in a side surface of the mounting shell, extends into the mounting shell, and is fixedly connected with a side surface of the moving plate.

By adopting the scheme, the rotating shaft is utilized to drive the reciprocating screw to rotate, the reciprocating screw rotates to drive the movable plate to move back and forth, so that the supporting plate is driven to move back and forth, the cleaning brush can be driven to move back and forth, the surface of the switch power supply main body can be cleaned, and the situation that dust and impurities are gathered and attached too much is avoided.

As a preferred embodiment, two guide bars are fixed on the lower surface of the inner wall of the mounting shell, and the lower surface of the moving plate is provided with a guide groove for the guide bars to slide.

By adopting the scheme, the guide strips can guide the movable plate to be limited, so that the movable plate is stable in the motion process and is not easy to incline and shake during motion, and the supporting plate can be driven to move front and back better.

As a preferred embodiment, the dovetail groove has been seted up to the lower surface of backup pad, the last fixed surface who cleans the brush has the dovetail block, the dovetail block slides at the inner wall in dovetail groove, it is used for carrying out spacing picture peg to the dovetail block to insert to be equipped with in the backup pad.

By adopting the scheme, the cleaning brush can be installed in a limiting manner by utilizing the trapezoidal block to slide in the trapezoidal groove, the trapezoidal block can be limited by the limiting insertion plate, the cleaning brush is prevented from being transversely shifted, and the cleaning brush can be slid and taken down only by taking out the limiting insertion plate when being detached, so that the cleaning brush is convenient to assemble and disassemble.

Compared with the prior art, the beneficial effects of the utility model are that:

the secondary side feedback constant current switch power supply is used by arranging the protective cover matched with the rotating block, the protective cover can be rotated to close the matched plugging plate to isolate and protect the space where the wiring column is located, the protection effect is good, the protective cover which is rotated to close can be locked by utilizing the locking spring matched with the locking plate, the protective cover which is rotated to close can be rotated to expand the protective cover and take down the plugging plate at the corresponding position for wiring use when in use, the protective cover is closed again for protection after wiring, and the interference influence of factors such as external dust on the wiring column is effectively avoided;

this vice limit feedback constant current switch power drives movable plate through setting up reciprocal lead screw and rotates and orders about movable plate drive backup pad reciprocating motion all around, and then drives through the backup pad and cleans brush reciprocating motion all around and clean the dust on switch power supply main body surface, can effectively avoid the dust to gather near bar louvre and influence radiating phenomenon.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the protection cover of the present invention;

FIG. 3 is a schematic view of the plugging plate of the present invention;

fig. 4 is a schematic structural view of a section of the installation shell of the present invention;

fig. 5 is a schematic structural view of the cross section of the support plate of the present invention.

In the figure: 1. a switching power supply main body; 2. rotating the block; 3. a protective cover; 4. an extension plate; 5. A locking member; 6. mounting a shell; 7. mounting a plate; 8. installing a bolt; 9. a fixed block; 10. a locking lever; 11. locking the operating plate; 12. a locking plate; 13. a locking spring; 14. a plugging plate; 15. a positioning column; 16. sealing the rubber plate; 17. a rotating shaft; 18. a reciprocating screw; 19. a micro motor; 20. moving the plate; 21. a support plate; 22. cleaning a brush; 23. conducting strips; 24. a trapezoidal block; 25. and a limiting inserting plate.

Detailed Description

Please refer to fig. 1-5, the utility model provides a secondary side feedback constant current switch power supply, including switching power supply main part 1, install turning block 2 on the switching power supply main part 1, it installs protection casing 3 to rotate on the turning block 2, protection casing 3 is used for carrying out isolated protection to the terminal on the switching power supply main part 1, the side of protection casing 3 is fixed with two extension boards 4, the side of switching power supply main part 1 is provided with retaining member 5 with extension board 4 cooperation use, the left and right sides face of switching power supply main part 1 all is fixed with mounting panel 7, mounting bolt 8 is installed to the screw thread on the mounting panel 7, the upper surface of switching power supply main part 1 has a plurality of bar louvres, surface mounting has installation shell 6 on the switching power supply main part 1, the left and right sides face of installation shell 6 all is provided with backup pad 21, backup pad 21 below is provided with the brush and cleans 22, the brush hair that cleans brush 22 is laminated with the upper surface of switching power supply main part 1, the cable through channel has been seted up to the position department of terminal on the protection casing 3, just to the cable through channel is provided with shutoff board 14.

Retaining member 5 is including fixing the fixed block 9 in switching power supply main part 1 side, the locking lever 10 that slides and run through fixed block 9, install the locking operation board 11 on locking lever 10 top, install the locking plate 12 in locking lever 10 bottom, the cover is established at locking lever 10 surface and both ends and is connected with fixed block 9 and locking plate 12 respectively locking spring 13, set up on the extension plate 4 and supply locking plate 12 male locking groove, utilize locking lever 10 on the fixed block 9 to drive locking plate 12 and slide from top to bottom, the elasticity effect that utilizes locking spring 13 can order about locking plate 12 when moving is gone into the locking inslot, accomplish the locking to extension plate 4, and then can lock protection casing 3 after the rotation is closed, locking structure is simple, and convenient for operation.

The lower fixed surface of closure plate 14 has a plurality of reference column 15, offer on the switching power supply main part 1 and supply reference column 15 male constant head tank, the external fixed surface of closure plate 14 has sealed offset plate 16, the inner wall of cable through channel has been offered and has been supplied sealed offset plate 16 male seal groove, it can install closure plate 14 in the constant head tank to utilize reference column 15 to insert, and utilize sealed offset plate 16's the cooperation seal groove that sets up to use, make 3 rotation of protection casing close the back can be fine completely cut off the protection to the terminal, and only need take off the closure plate 14 of corresponding position department when needs wiring and just can work a telephone switchboard the use.

Two pivots 17 are installed to the internal rotation of installation shell 6, the output shaft fixed connection of the micro motor 19 of the tip of one of them pivot 17 and the 6 side of installation shell fixed, be fixed with reciprocal lead screw 18 between two pivots 17, the surface screw thread installation of reciprocal lead screw 18 has movable plate 20, the tip of backup pad 21 passes the bar hole of 6 side setings of installation shell and extends to the installation shell 6 inside and with the side fixed connection of movable plate 20, utilize pivot 17 to drive reciprocal lead screw 18 to rotate, reciprocal lead screw 18 rotates and drives movable plate 20 and carry out the seesaw, thereby drive backup pad 21 and carry out the seesaw, thereby can drive and clean brush 22 and carry out the seesaw, and then can clean switching power supply main part 1 surface, avoid dust impurity to gather to adhere to too much.

The inner wall lower fixed surface of installing shell 6 has two conducting bars 23, and the gliding guide slot of confession conducting bar 23 is seted up to the lower surface of movable plate 20, and the setting of conducting bar 23 can lead to movable plate 20 spacing for the phenomenon that the slope rocked is difficult for appearing in the better and motion of movable plate 20 stability in the motion process, and then can drive the better seesaw that carries on of backup pad 21.

Trapezoidal groove has been seted up to backup pad 21's lower surface, the last fixed surface who cleans brush 22 has trapezoidal block 24, trapezoidal block 24 slides at the inner wall in trapezoidal groove, it is equipped with and is used for carrying out spacing picture peg 25 to trapezoidal block 24 to insert in backup pad 21, it can carry out spacing installation to cleaning brush 22 to utilize trapezoidal block 24 to slide in the trapezoidal groove, and setting up of spacing picture peg 25 can carry out spacingly to trapezoidal block 24, avoid cleaning brush 22 and transversely shift to appear, and only need take out spacing picture peg 25 when dismantling and just can slide and take off and clean brush 22, easy dismounting and operation.

When the wiring device is used and wiring is needed, the locking operation plate 11 is pulled upwards to drive the locking rod 10 to move, the locking rod 10 drives the locking plate 12 to move to be separated from a locking groove in the extension plate 4, fixing of the extension plate 4 is removed, the protective cover 3 is rotated to be unfolded to expose a wiring terminal, then wiring operation is carried out, after wiring, the plugging plate 14 with the opposite wiring terminal is taken down, the protective cover 3 is rotated to be closed and locked through the locking spring 13 and the locking plate 12, isolation and protection are carried out on the wiring terminal part in the protective cover 3, meanwhile, the micro motor 19 works in the working process of the switching power supply main body 1, the rotating shaft 17 drives the reciprocating lead screw 18 to rotate, the movable plate 20 is driven to drive the supporting plate 21 to move, the supporting plate 21 drives the cleaning brush 22 to move back and forth to clean, and when the cleaning brush 22 needs to be detached, cleaned and replaced, the limiting insertion plate 25 is pulled out, and the sliding cleaning brush 22 can be taken down.

Claims

1. A secondary side feedback constant current switch power supply is characterized in that: including switching power supply main part (1), install turning block (2) on switching power supply main part (1), it installs protection casing (3) to rotate on turning block (2), protection casing (3) are used for carrying out isolated protection to the terminal on switching power supply main part (1), the side of protection casing (3) is fixed with two extension boards (4), the side of switching power supply main part (1) is provided with retaining member (5) that use with extension board (4) cooperation, the left and right sides face of switching power supply main part (1) all is fixed with mounting panel (7), mounting bolt (8) are installed to the screw thread on mounting panel (7), the upper surface of switching power supply main part (1) has a plurality of bar louvres, surface mounting has installation shell (6) on switching power supply main part (1), the left and right sides face of installation shell (6) all is provided with backup pad (21), be provided with below cleaning brush (21) and clean brush (22), the brush hair of cleaning brush (22) is laminated with the upper surface of switching power supply main part (1), the position department that the terminal has just seted up cable runs through the passageway on protection casing (3), the switching power supply main part just runs through the position blocking board (14) just to being provided with.

2. The secondary feedback constant current switching power supply according to claim 1, wherein: retaining member (5) are including fixing fixed block (9) in switching power supply main part (1) side, slide and run through check lock lever (10) of fixed block (9), install locking operation board (11) on check lock lever (10) top, install locking plate (12) in check lock lever (10) bottom, establish locking spring (13) that the cover is connected with fixed block (9) and locking plate (12) respectively at check lock lever (10) surface and both ends, offer on extension board (4) and supply locking plate (12) male locking groove.

3. The secondary-side feedback constant-current switching power supply of claim 1, wherein: the lower fixed surface of shutoff board (14) has a plurality of reference column (15), offer on switching power supply main part (1) and supply reference column (15) male constant head tank, the external fixed surface of shutoff board (14) has sealed offset plate (16), the inner wall that the cable runs through the passageway is seted up and is supplied sealed offset plate (16) male seal groove.

4. The secondary feedback constant current switching power supply according to claim 1, wherein: two pivots (17), one of them are installed to installation shell (6) internal rotation the tip of pivot (17) and the output shaft fixed connection of miniature motor (19) that installation shell (6) side is fixed, two be fixed with reciprocal lead screw (18) between pivot (17), the surface threaded mounting of reciprocal lead screw (18) has movable plate (20), the tip of backup pad (21) passes the bar hole that installation shell (6) side was seted up and extends to installation shell (6) inside and with the side fixed connection of movable plate (20).

5. The secondary feedback constant current switching power supply of claim 4, wherein: two guide bars (23) are fixed on the lower surface of the inner wall of the mounting shell (6), and guide grooves for the guide bars (23) to slide are formed in the lower surface of the moving plate (20).

6. The secondary-side feedback constant-current switching power supply of claim 1, wherein: the dovetail groove has been seted up to the lower surface of backup pad (21), the last fixed surface who cleans brush (22) has trapezoidal piece (24), trapezoidal piece (24) slide at the inner wall in dovetail groove, it is used for carrying out spacing picture peg (25) to trapezoidal piece (24) to insert to be equipped with on backup pad (21).