A protection device and method for a switching power supply

Abstract

The present invention discloses a switching power supply protection device and method, belonging to the field of switching power supplies. A switching power supply protection device includes a housing, a working chamber, a conversion portion, and a pair of connectors; the working chamber is opened in the housing, and the pair of connectors are respectively connected to two opposite surfaces of the outer side of the housing; the conversion portion includes a driving element, a pair of switching power supplies, a pair of bearing assemblies, and two pairs of connecting assemblies; a pair of the bearing assemblies respectively carries a pair of switching power supplies, wherein a pair of connecting assemblies are respectively installed on one side of the pair of bearing assemblies close to the pair of connecting heads; by placing the pair of switching power supplies together and then replacing them based on the upper and lower position relationship, when a short circuit or overtemperature occurs, the driving element is activated, thereby disconnecting the switching power supply in use, and then replacing it with a spare switching power supply, thereby cooling or maintaining the switching power supply without affecting its use.

Description

Technical Field

[0001] The present invention relates to the field of switching power supplies, and more particularly to a protection device and method for a switching power supply. Background Art

[0002] A switch-mode power supply (SMPS), also known as an alternating current power supply or switching converter, is a high-frequency power conversion device and a type of power supply. Its function is to convert a voltage level to the voltage or current required by the user through various architectures. The input of a switching power supply is typically an AC power source (such as the mains) or a DC power source, while the output is typically for devices requiring DC power, such as personal computers. The switching power supply performs the voltage and current conversion between the two. Due to the long operating life of switching power supplies, they are susceptible to short circuits, overheating, and even fire. When these problems occur, they cannot be quickly addressed, leading to a series of problems and inestimable losses. Existing technologies do not facilitate immediate replacement to minimize losses, and often rely on cooling during use, which limits the lifespan of the switching power supply. Summary of the Invention

[0003] In response to the problems existing in the prior art, the first purpose of the present invention is to provide a protection device for a switching power supply. The device can be operated by placing a pair of switching power supplies together and then replacing them using the upper and lower position relationship. When a short circuit or overtemperature occurs, the driving element is activated to disconnect the switching power supply in use and then replace it with a spare switching power supply, thereby cooling or maintaining the switching power supply without affecting its use.

[0004] The second purpose is to provide a method for a switching power supply protection device, by which the switching power supply can be solved after a problem occurs, and the service life of the switching power supply is extended by disconnecting the natural cooling when the temperature drops. In addition, in the event of a short circuit, the switching power supply can be replaced without delaying its use.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A protection device for a switching power supply comprises a housing, a working chamber, a conversion portion and a pair of connectors; the working chamber is opened in the housing, and the pair of connectors are respectively connected to two opposite surfaces of the outer side of the housing; the conversion portion comprises a driving element, a pair of switching power supplies, a pair of bearing assemblies and two pairs of connecting assemblies; a pair of the bearing assemblies respectively carries a pair of switching power supplies, wherein a pair of connecting assemblies are respectively installed on one side of the pair of bearing assemblies close to the pair of connectors, wherein the pair of connecting assemblies are respectively electrically connected to the pair of connectors, and the driving element is connected to the pair of bearing assemblies. By placing the pair of switching power supplies together and then replacing them using the upper and lower position relationship, when a short circuit or overtemperature occurs, the driving element is started, thereby disconnecting the switching power supply in use, and then replacing it with a spare switching power supply, thereby cooling or maintaining the switching power supply without affecting its use.

[0007] Furthermore, the driving element includes a motor and a driving rod; the motor is fixedly mounted on the outside of the housing, and the driving rod is rotatably mounted on the side wall of the working chamber and fixedly connected to the motor.

[0008] Furthermore, the carrying assembly includes a connecting rod, a movable slot, an articulated telescopic rod, a carrier and an adjustment mechanism; the connecting rod and the driving rod are connected through a articulated telescopic rod, the movable slot is opened in the connecting rod, the carrier is installed on the adjustment mechanism, and the adjustment mechanism is arranged in the movable slot. By adjusting the carrier using the adjustment mechanism to adapt to switching power supplies of different sizes, and setting the carrier and the adjustment mechanism as a pair, the switching power supply is easier to install, and then the connecting assembly can be better connected to the connector.

[0009] Furthermore, the adjustment mechanism includes a gear, a threaded shaft and a transmission gear; the threaded shaft is rotatably installed in the movable groove, the threaded shaft and the carrier thread cooperate, the transmission gear is fixedly installed on the threaded shaft, the gear is rotatably installed on the connecting rod and meshes with the transmission gear, and is manually driven so that it can be adjusted during the first installation and no adjustment is required subsequently, saving costs.

[0010] Furthermore, the connecting assembly includes a female plug, a compression spring, a connecting plate, a compression groove, a boss and a matching groove; the compression groove is opened in the carrier, the connecting plate is slidably installed in the compression groove, one end of the compression spring is fixedly installed on the side wall of the compression groove; the other end is fixedly installed on the connecting plate, the female plug is connected to the connecting plate, the female plug is electrically connected to the switching power supply, the boss is fixedly installed on the side wall of the working chamber, the matching groove matches the outer shape of the female plug and is opened in the boss, a male plug is slidably installed in the matching groove by a slide rail, the male plug is electrically connected to the connector; and it is detachably connected to the female plug, the boss is positioned higher than the connecting rod, and by changing the connection mode to a plug connection, it is safer and more convenient than the original wire screw compression connection mode. In the connection between the male and female plugs, the matching shapes are used to make the connection more stable, and the length of the female plug is adjusted by a hinged movable rod to adapt to switching power supplies of different sizes.

[0011] Furthermore, a partition plate fixedly mounted on the side wall of the working chamber is provided between the connecting rods; a pair of elastic plates are slidably mounted in the partition plate through a reset spring; the pair of elastic plates are symmetrically arranged about the motor; the side of the elastic plate resting against the side wall of the working chamber is an arc surface, and the elastic properties of the elastic plate itself are used in conjunction with the arc surface, so that it is more convenient to replace the switching power supply, prevent damage from impact, and save costs.

[0012] Furthermore, a fire extinguishing mechanism is provided on the lower side of the partition board; the fire extinguishing mechanism includes a rope, a limit block, a tension spring, an opening and closing door and a storage box; the storage box is fixedly mounted on the lower side of the partition board, and the opening and closing door is rotatably mounted in the storage box, a groove is provided in the storage box, and the limit block slides in cooperation with the groove, one end of the rope is fixedly mounted on the limit block; the other end is fixedly mounted on the side wall of the working chamber, and the tension spring fixedly connects the limit block to the opening and closing door, and after the switching power supply catches fire, it is automatically replaced due to excessive temperature, and then the position of the fire will burn the rope, so that the opening and closing door is no longer restricted, so that the fire extinguishing material in the storage box is dumped, and then the fire is extinguished.

[0013] Furthermore, a lifting door is provided on the shell, and the lifting door is used for ventilation, cooling and installation.

[0014] Furthermore, the connection assembly also includes a connecting plate and a hinged movable rod; the threaded rod is rotatably installed in the connecting plate, one end of the hinged movable rod is threadedly engaged with the threaded rod; and the other end is slidably connected to the female plug.

[0015] A method for switching a power supply protection device, the method steps are as follows:

[0016] Step 1: Use the temperature sensor to detect that the temperature of one of the switching power supplies in use is too high, and then send a signal to the controller. The controller sends a start signal, and the pair of connection components in use begin to separate from the connector. The driving element drives a pair of load-bearing components and two pairs of connection components to perform circular motion.

[0017] Step 2: Then another spare switch power supply is turned to the connector position, and then a pair of connecting components begin to connect the connector.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution places a pair of switching power supplies together and then replaces them using the upper and lower position relationship. When a short circuit or overtemperature occurs, the driving element starts, thereby disconnecting the switching power supply in use and then replacing it with a spare switching power supply, thereby cooling or maintaining the switching power supply without affecting its use.

[0020] (2) This solution changes the connection method to a plug connection, which is safer and more convenient than the original wire screw compression connection method. In the connection of the male and female plugs, the matching shapes are used to make the connection more stable, and the length of the female plug is adjusted by the hinged movable rod to adapt to different sizes of switching power supplies.

[0021] (3) This solution adjusts the carrier using an adjustment mechanism to adapt to switching power supplies of different sizes, and sets the carrier and the adjustment mechanism as a pair, so that the switching power supply is easier to install, and then the connecting component can be better connected to the connector.

[0022] (4) This solution is that after the switch power supply catches fire, due to the high temperature, it will automatically replace the switch power supply, and then the rope will be burned at the location of the fire, so that the opening and closing of the door is no longer restricted, allowing the fire extinguishing material in the storage box to pour out and then put out the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the intermediate transfer section;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the middle load-bearing component;

[0026] Figure 4 For the present invention Figure 3 Structural diagram of the connecting component;

[0027] Figure 5 For the present invention Figure 3 Schematic diagram of the internal structure;

[0028] Figure 6 For the present invention Figure 5 Structural diagram of the middle adjustment mechanism;

[0029] Figure 7 For the present invention Figure 2 Structural diagram of the fire extinguishing mechanism.

[0030] Description of the numbers in the figure:

[0031] Shell 1, working chamber 11, boss 111, matching groove 112, connector 2, lifting door 3, conversion part 4, driving element 41, motor 411, driving rod 42, partition plate 43, elastic plate 44, switching power supply 461, bearing assembly 46, connecting rod 462, movable groove 62, articulated telescopic rod 45, carrier 53, adjustment mechanism 6, gear 64, threaded shaft 61, transmission gear 643, connecting assembly 5, female plug 51, compression spring 52, connecting plate 54, threaded rod 55, articulated movable rod 56, compression groove 57, fire extinguishing mechanism 8, rope 81, limit block 82, tension spring 83, opening and closing door 85, storage box 86. DETAILED DESCRIPTION

[0032] See also Figure 1-7 A protection device for a switching power supply, comprising a housing 1, a working chamber 11, a conversion portion 4 and a pair of connectors 2; the working chamber 11 is opened in the housing 1, and the pair of connectors 2 are respectively connected to two opposite surfaces of the outer side of the housing 1; the conversion portion 4 comprises a driving element 41, a pair of switching power supplies 461, a pair of bearing assemblies 46 and two pairs of connecting assemblies 5; the pair of bearing assemblies 46 respectively carry a pair of switching power supplies 461, wherein the pair of connecting assemblies 5 are respectively installed on one side of the pair of bearing assemblies 46 close to the pair of connectors 2, wherein the pair of connecting assemblies 5 are respectively electrically connected to the pair of connectors 2, and the driving element 41 is connected to the pair of bearing assemblies 46. By putting the pair of switching power supplies 461 together and then replacing them according to the upper and lower position relationship, when a short circuit or overtemperature occurs, the driving element 41 is started, thereby disconnecting the switching power supply 461 in use, and then replacing it with a spare switching power supply 461, so that the switching power supply 461 can be cooled or maintained without affecting its use. The driving element 41 includes a motor 411 and a driving rod 42 ; the motor 411 is fixedly mounted on the outside of the housing 1 , and the driving rod 42 is rotatably mounted on the side wall of the working chamber 11 and fixedly connected to the motor 411 .

[0033] like Figure 2-6As shown, the bearing assembly 46 includes a connecting rod 462, a movable groove 62, an articulated telescopic rod 45, a carrier 53 and an adjustment mechanism 6; the connecting rod 462 is connected to the driving rod 42 through the articulated telescopic rod 45, the movable groove 62 is opened in the connecting rod 462, the carrier 53 is installed on the adjustment mechanism 6, and the adjustment mechanism 6 is set in the movable groove 62. By adjusting the carrier 53 using the adjustment mechanism 6 to adapt to different sizes of switching power supplies 461, and setting the carrier 53 and the adjustment mechanism 6 as a pair, the switching power supply 461 is easier to install, and then the connecting assembly 46 can be better connected to the connector. The adjustment mechanism 6 includes a gear 64, a threaded shaft 61 and a transmission gear 643; the threaded shaft 61 is rotatably installed in the movable groove 62, the threaded shaft 61 and the carrier 53 are threaded together, the transmission gear 643 is fixedly installed on the threaded shaft 61, and the gear 64 is rotatably installed on the connecting rod 462 and meshes with the transmission gear 643. It is manually driven so that it can be adjusted during the first installation and no adjustment is required later, saving costs.

[0034] like Figure 3-6 As shown, the connection component 5 includes a female plug 51, a compression spring 52, a connecting plate 54, a compression groove 57, a boss 111 and a matching groove 112; the compression groove 57 is opened in the carrier 53, the connecting plate 54 is slidably installed in the compression groove 57, one end of the compression spring 52 is fixedly installed on the side wall of the compression groove 57; the other end is fixedly installed on the connecting plate 54, the female plug 51 is connected to the connecting plate 54, the female plug 51 is electrically connected to the switching power supply 461, the boss 111 is fixedly installed on the side wall of the working chamber 11, and the matching groove 112 is connected to the outer wall of the female plug 51. The male plug is shaped and arranged in the boss 111. The matching groove 112 is slidably mounted with a male plug via a slide rail. The male plug is electrically connected to the connector 2 and is detachably connected to the female plug 51. The boss 111 is positioned higher than the connecting rod 462. By changing the connection method to a plug connection, it is safer and more convenient than the original wire screw compression connection method. The matching shapes of the male and female plugs 51 make the connection more stable. The length of the female plug 51 is adjusted by a hinged movable rod to accommodate different sizes of switching power supplies 461. A partition plate 43 is fixedly mounted on the side wall of the working chamber 11 between the connecting rods 462. A pair of elastic plates 44 are slidably mounted in the partition plate 43 via a return spring. The pair of elastic plates 44 are symmetrically arranged about the motor 41. The side of the elastic plate 44 that abuts the side wall of the working chamber 11 is an arc surface. The elastic properties of the elastic plate 44 cooperate with the arc surface to make it easier to replace the switching power supply 461, prevent damage from impact, and save costs.

[0035] like Figure 5-7As shown, a fire extinguishing mechanism 8 is provided on the underside of the partition plate 43. The fire extinguishing mechanism 8 comprises a rope 81, a stopper 82, a tension spring 83, an opening and closing door 85, and a storage box 86. The storage box 86 is fixedly mounted on the underside of the partition plate 43, and the opening and closing door 85 is rotatably mounted within the storage box 86. The storage box 86 has a groove in which the stopper 82 slides. One end of the rope 81 is fixedly mounted on the stopper 82; the other end is fixedly mounted on the side wall of the working chamber 11. The tension spring 83 securely connects the stopper 82 to the opening and closing door 85. When a fire occurs in the switching power supply 461, the fire will automatically change due to excessive temperature. The rope 81 will then burn at the location of the fire, freeing the opening and closing door 85, allowing the fire extinguishing material in the storage box 86 to be dumped, thereby extinguishing the fire. The housing 1 is provided with a lifting door 3, which is used for ventilation, cooling, and installation. The connecting assembly 5 also includes a connecting plate 54 and a hinged movable rod 56; the threaded rod 55 is rotatably installed in the connecting plate 54, and one end of the hinged movable rod 56 is threadedly engaged with the threaded rod 55; the other end is slidably connected to the female plug 51.

[0036] A method for switching a power supply protection device, the method steps are as follows:

[0037] Step 1: After the temperature sensor senses that the temperature of one of the switching power supplies 461 in use is too high, it sends a signal to the controller. The controller sends a start signal, and the pair of connecting components 5 in use begin to separate from the connector 2. The driving element 41 drives the pair of bearing components 46 and the two pairs of connecting components 5 to perform circular motion;

[0038] Step 2: Then another spare switch power supply 461 is turned to the connector 2 position, and then a pair of connecting components 5 start to connect to connector 2

[0039] like Figure 2-6 As shown, when the temperature sensor detects that the temperature is too high, it sends a signal to the controller, and the controller starts to issue control instructions. First, the male plug is disengaged from the female plug 51, and then the motor 41 is started to rotate the drive rod 42 180°. When the drive rod 42 rotates, the female plug 51 is pressed against the boss 111 through the compression spring 52, and then after disengaging from the boss 111, it contacts the arc surface of the elastic plate 44 on the partition plate 43. In accordance with the characteristics of the elastic plate 44, the elastic plate 44 is deformed and then compressed. Then the switching power supply 461 on the lower side is switched to the upper side. The female plug 51 on the lower side will contact the boss 111 due to the arc surface, so that the compression spring 52 is compressed. When the female plug 51 rotates in a circular motion into the matching groove 112, the matching groove 112 and the shape matching characteristics of the female plug 51 are utilized to make the male plug connection more convenient and stable.

[0040] like Figure 4-6As shown, when maintaining the switching power supply 461, manually rotate the gear 64, and then the transmission gear 643 is driven to drive the threaded shaft 61 to rotate, so that the carrier 53 moves, and through the movement of a pair of carriers 53, the female plugs on both sides can be connected in a more stable position, and then the articulated telescopic rod 45 is used to adjust the position of the switching power supply 461 between the two bosses 111 to make the connection more convenient, and then rotate the threaded rod 55 so that the articulated moving rod 56 can be adjusted to adapt to switching power supplies 461 of different lengths.

[0041] like Figure 7 As shown, when the switching power supply 461 catches fire, the temperature sensor detects that the temperature is too high and sends a signal to the controller. The controller starts to issue control instructions. First, the male plug is disengaged from the female plug 51, and then the motor 41 is started to rotate the drive rod 42 180°. When the drive rod 42 rotates, the female plug 51 is pressed against the boss 111 through the compression spring 52, and then after disengaging from the boss 111, it contacts the arc surface of the elastic plate 44 on the partition plate 43. In accordance with the characteristics of the elastic plate 44, the elastic plate 44 is deformed and then compressed. Then the switching power supply 461 on the lower side is switched to the upper side, and the fire position on the lower side will burn the rope 81. Then the limit block 82 loses tension, and the tension spring 83 resets, causing the limit block 82 to disengage from the groove, thereby opening the opening and closing door 85, and the fire extinguishing material falls to extinguish the fire.

Claims

1. A protection device for a switching power supply, characterized in that: It comprises a housing (1), a working chamber (11), a conversion portion (4), and a pair of connectors (2); The working chamber (11) is provided in the housing (1), and a pair of connectors (2) are respectively connected to two opposite surfaces of the outer side of the housing (1); The conversion portion (4) includes a driving element (41), a pair of switching power supplies (461), a pair of bearing components (46), and two pairs of connection components (5); A pair of the carrying components (46) respectively carries a pair of switching power supplies (461), wherein a pair of connecting components (5) are respectively installed on one side of the pair of carrying components (46) close to the pair of connecting heads (2), wherein the pair of connecting components (5) are respectively electrically connected to the pair of connecting heads (2), and the driving element (41) is connected to the pair of carrying components (46); The bearing assembly (46) includes a connecting rod (462), a movable groove (62), a hinged telescopic rod (45), a carrier (53) and an adjustment mechanism (6); the connecting rod (462) is connected to the driving rod (42) via the hinged telescopic rod (45); the movable groove (62) is provided in the connecting rod (462); the carrier (53) is mounted on the adjustment mechanism (6); and the adjustment mechanism (6) is provided in the movable groove (62); The adjusting mechanism (6) includes a gear (64), a threaded shaft (61) and a transmission gear (63); the threaded shaft (61) is rotatably mounted in the movable groove (62), the threaded shaft (61) and the carrier (53) are threadedly engaged, the transmission gear (63) is fixedly mounted on the threaded shaft (61), and the gear (64) is rotatably mounted on the connecting rod (462) and meshes with the transmission gear (63); The connecting assembly (5) includes a female plug (51), a compression spring (52), a connecting plate (54), a compression groove (57), a boss (111) and a matching groove (112); the compression groove (57) is provided in the carrier (53); the connecting plate (54) is slidably mounted in the compression groove (57); one end of the compression spring (52) is fixedly mounted on the side wall of the compression groove (57); the other end is fixedly mounted on the connecting plate (54); the female plug (51) and the connecting plate (54) are connected to each other. The plate (54) is connected, the female plug (51) is electrically connected to the switching power supply (461), the boss (111) is fixedly installed on the side wall of the working chamber (11), the matching groove (112) matches the shape of the female plug (51) and is opened in the boss (111), and a male plug is slidably installed in the matching groove (112) through a slide rail, and the male plug is electrically connected to the connector (2); and is detachably connected to the female plug (51), and the boss (111) is located higher than the connecting rod (462); A partition plate (43) fixedly mounted on the side wall of the working chamber (11) is provided between the connecting rods (462); a pair of elastic plates (44) are slidably mounted in the partition plate (43) via a return spring; the pair of elastic plates (44) are symmetrically arranged with respect to the motor (41); a side of the elastic plate (44) that abuts against the side wall of the working chamber (11) is an arc surface; A fire extinguishing mechanism (8) is provided on the lower side of the partition plate (43); the fire extinguishing mechanism (8) comprises a rope (81), a limit block (82), a tension spring (83), an opening and closing door (85) and a storage box (86); The storage box (86) is fixedly mounted on the lower side of the partition plate (43), and the opening and closing door (85) is rotatably mounted in the storage box (86). A groove is provided in the storage box (86), and the limit block (82) is slidably engaged with the groove. One end of the rope (81) is fixedly mounted on the limit block (82); the other end is fixedly mounted on the side wall of the working chamber (11), and a tension spring (83) fixedly connects the limit block (82) and the opening and closing door (85).

2. The protection device for a switching power supply according to claim 1, wherein: The driving element (41) includes a motor (411) and a driving rod (42); The motor (411) is fixedly mounted on the outside of the housing (1), and the drive rod (42) is rotatably mounted on the side wall of the working chamber (11) and fixedly connected to the motor (411).

3. The protection device for a switching power supply according to claim 1, wherein: A lifting door (3) is provided on the housing (1).

4. The protection device for a switching power supply according to claim 1, wherein: The connecting assembly (5) further includes a connecting plate (54) and a hinged movable rod (56); The threaded rod (55) is rotatably mounted in the connecting plate (54), and one end of the hinged movable rod (56) is threadably engaged with the threaded rod (55); and the other end is slidably connected to the female plug (51).

5. A method for a switching power supply protection device according to any one of claims 1 to 4, characterized in that: Step 1: After a temperature sensor senses that the temperature of one of the switching power supplies (461) in use is too high, a signal is sent to the controller, and the controller sends a start signal, and the pair of connecting components (5) in use begin to separate from the connector (2), and the driving element (41) drives the pair of bearing components (46) and the two pairs of connecting components (5) to perform circular motion; Step 2: Then another spare switching power supply (461) is turned to the connector (2) position, and then a pair of connecting components (5) start to connect the connector (2).

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