CN217240587U

CN217240587U - High-voltage direct-current power supply slow starting device

Info

Publication number: CN217240587U
Application number: CN202220796659.2U
Authority: CN
Inventors: 何基原
Original assignee: Nanjing Jina Electronic Technology Co ltd
Current assignee: Nanjing Jina Electronic Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-08-19
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to the technical field of power, and a high voltage direct current power supply slowly starting drive is disclosed, including the gentle actuating mechanism of shell, the inside of shell is equipped with the mounting panel, slowly the actuating mechanism is located the fixed setting in upper end of mounting panel, the top of shell is equipped with the cap, the fresh air inlet has been seted up to the tip of cap, the terminal surface fixedly connected with of cap and the corresponding radiator fan in fresh air inlet position, the fixed temperature measurement pole of pegging graft in upper end of cap, the cavity is seted up to the inside of temperature measurement pole, the inside sliding connection of cavity has the piston, the position that the inside of cavity is located the piston below is filled there is the inflation liquid. This application can carry out the work of dispelling the heat according to the height automatic control radiator fan of temperature, when guaranteeing the radiating effect, energy-conserving effectual, and the cost is lower, and the convenient stability of working a telephone switchboard simultaneously, the leakproofness of wiring department is good.

Description

High-voltage direct-current power supply slow starting device

Technical Field

The application relates to the technical field of power supplies, in particular to a high-voltage direct-current power supply slow starting device.

Background

When a high-voltage direct-current power supply is powered on, higher surge current can be generated, the surge current is mainly caused by charging of a filter capacitor, the capacitor presents lower impedance to alternating current at the moment when a switching tube is switched on, and if no protective measures are taken, the surge current can approach hundreds of amperes, so that connected electronic devices are damaged, and a slow start module for preventing the surge current is usually additionally arranged at the output end of the power supply to ensure stable power supply output.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the technology, a slow start module is usually constructed to achieve the purpose of preventing surge current, constituent elements of the slow start circuit are usually installed inside a casing, and a cooling fan is usually additionally installed on the casing to assist in cooling, but in the actual use process, the cooling fan is continuously started, and although a good cooling environment can be maintained, when the temperature inside the casing is low, the cooling fan continues to work, which causes unnecessary waste, so that a high-voltage direct-current power supply slow start device is provided.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is in order to solve among the prior art radiator fan and continuously open, though can maintain a better heat dissipation environment, when the inside temperature of casing is lower, radiator fan continues to work, can cause the extravagant problem of unnecessary, and the slow starting drive of a high voltage dc power supply who provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a high voltage direct current power supply slowly starting drive, includes the gentle actuating mechanism of shell, the inside of shell is equipped with the mounting panel, slowly actuating mechanism is located the fixed setting in upper end of mounting panel, the top of shell is equipped with the cap, the fresh air inlet has been seted up to the tip of cap, the terminal surface fixedly connected with and the corresponding radiator fan in fresh air inlet position of cap, the fixed temperature measurement pole of pegging graft in upper end of cap, the cavity is seted up to the inside of temperature measurement pole, the inside sliding connection of cavity has the piston, the position that the inside of cavity is located the piston below is filled there is the inflation liquid, the equal fixedly connected with electrode block of upper end of piston and the last cavity wall, two the electrode block all is connected with the radiator fan electricity, the ventilation mesh has all been seted up to two lateral wall lower extremes of the different side of shell.

Preferably, the equal fixedly connected with a set of connection terminal of two lateral walls of the different side of shell, every the connection terminal all is connected with the mechanism electricity that slowly starts, every adapter plug has all been pegged graft to the wiring end of connection terminal, every adapter plug's the fixed clamping ring that has cup jointed of lateral wall, the fixed ring that has cup jointed of lateral wall of connection terminal, the clamping ring is close to the lateral wall fixedly connected with seal ring of solid fixed ring one side.

Preferably, the lower extreme fixedly connected with of mounting panel has a plurality of evenly distributed's fin, every the one end that the mounting panel was kept away from to the fin all runs through the lower extreme of shell and extends to the outside setting.

Preferably, every two slide bars of patchplug's the equal fixedly connected with of lateral wall, every patchplug's the outside all overlaps and is equipped with the internal thread cover, every the internal thread cover all is located the fixed setting of the lateral wall of shell, the inner wall of internal thread cover seted up with slide bar assorted annular spout, every the outside of connection terminal all is overlapped and is equipped with the external screw thread ring, every the lateral wall of external screw thread ring all with the inner wall threaded connection of homonymy internal thread cover.

Preferably, the equal fixedly connected with installation piece in inside wall upper end four corners department of shell, every the common threaded connection of the upper end of installation piece and the upper end of cap has the mounting screw.

Preferably, the lower extreme four corners department of mounting panel all fixedly connected with latch segment, every the common threaded connection of the lower extreme of latch segment and the lower extreme of shell has locking bolt.

Preferably, a stainless steel dustproof net is fixedly arranged inside the air inlet hole.

Compared with the prior art, the application provides a high voltage direct current power supply slow start device, possesses following beneficial effect:

1. this high voltage direct current power supply slow starting device, through the shell that is equipped with, slow starting mechanism, the mounting panel, mutually supporting of cap and radiator fan, can regard as high voltage direct current power supply protection piece to use, and can carry out the work of dispelling the heat to slow starting mechanism, through the temperature measurement pole that is equipped with, the piston, inflation liquid and two electrode blocks mutually support, can carry out the work of dispelling the heat according to the height automatic control radiator fan of temperature, when guaranteeing the radiating effect, energy-conservation is effectual, and need not components such as temperature measurement sensor, the cost is lower.

2. This high voltage direct current power supply slow start device through two sets of connection terminal, two sets of patchplug, two sets of clamping rings, two sets of solid fixed rings and two sets of seal ring's that are equipped with mutually supporting, can improve the leakproofness of wiring department, through the mutually supporting of the slide bar that is equipped with, interior thread bush and external thread ring, can improve the stability of wiring.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, and this application can carry out the work of dispelling the heat according to the high low automatic control radiator fan of temperature, when guaranteeing the radiating effect, energy-conserving effectual, and the cost is lower, and the convenient stability of working a telephone switchboard simultaneously, the leakproofness of wiring department is good.

Drawings

Fig. 1 is a schematic structural diagram of a slow start device for a high-voltage dc power supply according to the present application;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

fig. 3 is an enlarged view of a portion B of fig. 1.

In the figure: 1. a housing; 2. a slow start mechanism; 3. mounting a plate; 4. a shell cover; 5. a heat-dissipating fan; 6. a temperature measuring rod; 7. a piston; 8. an electrode block; 9. a wire holder; 10. a patch plug; 11. pressing a ring; 12. a fixing ring; 13. a sealing gasket; 14. a heat sink; 15. a slide bar; 16. an internal thread sleeve; 17. an externally threaded ring; 18. mounting blocks; 19. mounting screws; 20. a locking block; 21. locking the bolt; 22. stainless steel dust screen.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Embodiment 1 referring to fig. 1-3, a high voltage direct current power supply slow start device, including a housing 1 and a slow start mechanism 2, a mounting plate 3 is disposed inside the housing 1, the slow start mechanism 2 is disposed at an upper end of the mounting plate 3, a housing cover 4 is disposed above the housing 1, an air inlet is disposed at an end of the housing cover 4, a heat dissipation fan 5 corresponding to the air inlet is fixedly connected to an end surface of the housing cover 4, a temperature measurement rod 6 is fixedly inserted at an upper end of the housing cover 4, a cavity is disposed inside the temperature measurement rod 6, a piston 7 is slidably connected inside the cavity, an expansion liquid is filled in the cavity at a position below the piston 7, mesh electrode blocks 8 are fixedly connected to an upper end of the piston 7 and an upper cavity wall, the two electrode blocks 8 are electrically connected to the heat dissipation fan 5, ventilation is disposed at lower ends of two side walls of the opposite side of the housing 1, and the slow start mechanism 2 is disposed through a PCB board, The components such as resistance, electric capacity can constitute an anti-surge current circuit, reach the protection effect to the power, and this is prior art, do not do too much and describe, and inflation liquid level alcohol sets up, and inflation liquid can be trund into the gaseous state by the liquid to when being heated, makes the inside atmospheric pressure of cavity increase, becomes liquid again when the temperature step-down, and piston 7 can fall again under the effect of upside atmospheric pressure.

The lower extreme fixedly connected with of mounting panel 3 a plurality of evenly distributed's fin 14, the one end that mounting panel 3 was kept away from to every fin 14 all runs through the lower extreme of shell 1 and extends to the outside setting, and when the temperature was lower, can carry out the heat through fin 14 and give off, reduces radiator fan 5's work.

The equal fixedly connected with installation piece 18 of inside wall upper end four corners department of shell 1, the common threaded connection in upper end of every installation piece 18 and cap 4 has mounting screw 19, through this kind of setting, can be convenient for cap 4 and shell 1 between be connected fixedly.

The equal fixedly connected with latch segment 20 of lower extreme four corners department of mounting panel 3, the common threaded connection of the lower extreme of every latch segment 20 and shell 1 has locking bolt 21, and through this kind of setting, the installation that can be convenient for mounting panel 3 is fixed.

The stainless steel dust screen 22 is fixedly arranged inside the air inlet hole, and foreign matters such as external dust can be prevented from entering the air inlet hole during heat dissipation through the stainless steel dust screen 22.

Embodiment 2 is as shown in fig. 1-3 on the basis of embodiment 1, two side walls of the opposite side of the housing 1 are fixedly connected with a group of wire holders 9, each wire holder 9 is electrically connected with the slow start mechanism 2, the terminal of each wire holder 9 is connected with an adapter plug 10 in an inserted manner, the side wall of each adapter plug 10 is fixedly sleeved with a press ring 11, the side wall of the wire holder 9 is fixedly sleeved with a fixed ring 12, the side wall of the press ring 11, which is close to one side of the fixed ring 12, is fixedly connected with a sealing washer 13, the press ring 11 is tightly abutted against the fixed ring 12 through the insertion of the adapter plug 10 and the corresponding wire holder 9, and the sealing performance of the press ring 11 and the fixed ring 12 after being abutted against each other can be improved through the sealing washer 13, so that the sealing performance after the wire connection can be improved.

Two slide bars 15 of the equal fixedly connected with of lateral wall of every patchplug 10, the outside of every patchplug 10 all overlaps and is equipped with internal thread cover 16, every internal thread cover 16 all is located the fixed setting of lateral wall of shell 1, the inner wall of internal thread cover 16 seted up with slide bar 15 assorted annular spout, the outside of every connection terminal 9 all overlaps and is equipped with external screw thread ring 17, the lateral wall of every external screw thread ring 17 all with the inner wall threaded connection of homonymy internal thread cover 16, through with the inside back of internal thread cover 16 screw in external screw thread ring 7, can ensure the connection stability of patchplug 10 and connection terminal 9, through two slide bars 15, can not influence patchplug 10 when making external screw thread ring 17 rotate.

In this application, during the use, with the wiring end of power output end access slow actuating mechanism 2, and also be connected external circuit with the wiring end of slow actuating mechanism 2, surge current can be prevented through slow actuating mechanism 2, at the during operation, the inside temperature of shell 1 risees, temperature measurement pole 6 can be with heat transfer to inflation liquid this moment, inflation liquid is the thermal expansion, thereby can make cavity internal pressure increase, under the pressure effect, can promote piston 7 and move up, until two electrode block 8 contact, can make 5 circular telegram work of radiator fan this moment, the work of dispelling the heat.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. A high-voltage direct-current power supply slow starting device comprises a shell (1) and a slow starting mechanism (2), and is characterized in that a mounting plate (3) is arranged in the shell (1), the slow starting mechanism (2) is fixedly arranged at the upper end of the mounting plate (3), a shell cover (4) is arranged above the shell (1), an air inlet hole is formed in the end portion of the shell cover (4), a heat radiation fan (5) corresponding to the air inlet hole is fixedly connected to the end face of the shell cover (4), a temperature measurement rod (6) is fixedly inserted into the upper end of the shell cover (4), a cavity is formed in the temperature measurement rod (6), a piston (7) is slidably connected into the cavity, expansion liquid is filled in the position, below the piston (7), of the cavity, and an electrode block (8) is fixedly connected to the upper end of the piston (7) and the upper cavity wall, two electrode blocks (8) are electrically connected with a cooling fan (5), and the lower ends of two side walls of the different sides of the shell (1) are provided with ventilation meshes.

2. The high-voltage direct-current power supply slow starting device is characterized in that a group of wire holders (9) are fixedly connected to two side walls of the opposite side of the shell (1), each wire holder (9) is electrically connected with the slow starting mechanism (2), an adapter plug (10) is inserted into a wiring end of each wire holder (9), a pressing ring (11) is fixedly sleeved on a side wall of each adapter plug (10), a fixing ring (12) is fixedly sleeved on a side wall of each wire holder (9), and a sealing gasket (13) is fixedly connected to a side wall, close to one side of the fixing ring (12), of the pressing ring (11).

3. The slow starting device for the high-voltage direct current power supply according to claim 1, wherein a plurality of uniformly distributed cooling fins (14) are fixedly connected to the lower end of the mounting plate (3), and one end, away from the mounting plate (3), of each cooling fin (14) penetrates through the lower end of the housing (1) and extends to the outside.

4. The high-voltage direct-current power supply slow starting device is characterized in that two sliding rods (15) are fixedly connected to the side wall of each adapter plug (10), an internal thread sleeve (16) is sleeved on the outer side of each adapter plug (10), each internal thread sleeve (16) is located on the outer side wall of the shell (1) and fixedly arranged, an annular sliding groove matched with each sliding rod (15) is formed in the inner wall of each internal thread sleeve (16), an external thread ring (17) is sleeved on the outer side of each wire holder (9), and the outer side wall of each external thread ring (17) is in threaded connection with the inner wall of each internal thread sleeve (16) on the same side.

5. The slow starting device for the high-voltage direct-current power supply according to claim 1, characterized in that mounting blocks (18) are fixedly connected to four corners of the upper end of the inner side wall of the outer shell (1), and a mounting screw (19) is jointly and threadedly connected to the upper end of each mounting block (18) and the upper end of the shell cover (4).

6. The slow starting device for the high-voltage direct-current power supply according to claim 1, characterized in that locking blocks (20) are fixedly connected to four corners of the lower end of the mounting plate (3), and a locking bolt (21) is in threaded connection with the lower end of the outer shell (1) together at the lower end of each locking block (20).

7. The high-voltage direct-current power supply slow starting device is characterized in that a stainless steel dust screen (22) is fixedly arranged inside the air inlet hole.