A switching power supply circuit breaker protection device

Abstract

This invention relates to the field of switching power supply circuit breaker protection technology, specifically a switching power supply circuit breaker protection device, including a circuit breaker. The circuit breaker is equipped with a quick cleaning mechanism, which includes two guide grooves and two fixed seats. Guide rods are slidably connected inside each guide groove. A mounting plate is fixedly connected between the guide rods. An air supply groove is fixedly connected inside the mounting plate. A delivery pipe is fixedly connected at the middle position of the side wall of the mounting plate. Symmetrically arranged support rods are fixedly connected to the side wall of the mounting plate. An inflatable airbag is fixedly connected to one end of each support rod. Symmetrically arranged positioning rods are fixedly connected to the side wall of the mounting plate. The beneficial effects of this invention are: the entire operation is convenient and efficient, improving the efficiency of circuit breaker cleaning, solving the problem of cleaning the back ventilation groove, and avoiding the problem of reduced ventilation efficiency caused by incomplete cleaning of the ventilation groove and back channel.

Description

Technical Field

[0001] This invention relates to the field of switching power supply circuit breaker protection technology, specifically a switching power supply circuit breaker protection device. Background Technology

[0002] Switching power supply circuit breaker protection devices refer to the circuit breakers commonly found in daily life. A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and close, carry, and interrupt current under abnormal circuit conditions within a specified time. It can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. When they experience serious overload, short circuit, or undervoltage faults, it can automatically disconnect the circuit. Its function is equivalent to a combination of a fuse switch and over / under-temperature relays. Moreover, it generally does not require replacement of components after interrupting the fault current and has been widely used.

[0003] For example, patent document CN221613809U discloses a thermally adjustable circuit breaker component structure, including a circuit breaker housing. Ventilation slots are longitudinally formed on both outer walls of the circuit breaker housing. A cleaning mechanism is installed inside each ventilation slot. A baffle is fixedly connected to the center of the back of each ventilation slot, and a positioning plate is longitudinally fixedly connected to the center of the front of each baffle. Each cleaning mechanism includes a cleaning plate, which is slidably connected inside the ventilation slot on the same side. Multiple through slots are symmetrically arranged on the side wall of the cleaning plate about the positioning plate. The beneficial effect of this invention is that by opening a ventilation slot on the outer wall of the circuit breaker housing, it facilitates the flow of air between adjacent... The flow between the two circuit breaker housings improves heat dissipation, and a cleaning mechanism is installed in the venting groove. This mechanism can not only remove cobwebs from the venting groove, but also facilitate the separation of adjacent circuit breaker housings by pulling the pull plate of the cleaning mechanism during disassembly. Although the above application has many beneficial effects, it still has the following shortcomings: During use, when several circuit breakers are connected and installed together to form a complete circuit breaker, only the side ventilation positions of the circuit breaker can be cleaned. It is difficult to effectively clean the rear ventilation positions. Moreover, the user must clean the side ventilation positions of each circuit breaker connection one by one, which is not only cumbersome, but also greatly reduces the convenience of overall cleaning. Summary of the Invention

[0004] To address the problem of the low convenience of cleaning dust from the ventilation slots of existing circuit breakers, this invention provides a switching power supply circuit breaker protection device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a switching power supply circuit breaker protection device, including a circuit breaker, wherein the circuit breaker has symmetrically arranged ventilation slots and a passage slot is provided on the back of the circuit breaker; The circuit breaker is equipped with a quick-cleaning mechanism, which includes two guide grooves and two fixed seats. Guide rods are slidably connected inside each guide groove. A mounting plate is fixedly connected between the guide rods. An air supply groove is fixedly connected inside the mounting plate. A delivery pipe is fixedly connected to the middle of the side wall of the mounting plate. Symmetrically arranged support rods are fixedly connected to the side wall of the mounting plate. An inflatable airbag is fixedly connected to one end of each support rod. Symmetrically arranged positioning rods are fixedly connected to the side wall of the mounting plate. Positioning blocks are fixedly connected to the side ends of each positioning rod. Connecting pipes are fixedly connected to the mounting plate at the positions corresponding to the ventilation grooves. Airbag retraction rolls are fixedly connected to the connecting pipes. A scraper is fixedly connected to the mounting plate at the positions corresponding to the passage grooves.

[0006] Specifically, the ventilation slots are located at the front end of the passage slots, and all the ventilation slots are in communication with the passage slots. The guide slots are symmetrically opened on the circuit breaker at the corresponding positions of the passage slots, and all the guide slots are in communication with the passage slots.

[0007] Specifically, the fixing seats are symmetrically fixedly connected to the side wall of the circuit breaker. The fixing seats are all made of plastic and have toughness. The fixing seats are all snapped into the corresponding positioning blocks.

[0008] Specifically, the delivery pipe is located at the middle position of the two support rods on the side wall of the mounting plate, and the support rods are located at the middle position of the two positioning rods on the side wall of the mounting plate.

[0009] Specifically, the inflatable airbag is fixedly connected to symmetrically arranged support plates, all of which are circular. One end of the delivery pipe passes through the corresponding support plate and is fixedly connected to and through the inflatable airbag, while the other end of the delivery pipe is connected to the air delivery groove inside the mounting plate.

[0010] Specifically, the scraper is slidably connected inside the passage groove, the airbag retraction roll is connected to the connecting pipe, and the connecting pipe is connected to the air supply groove inside the mounting plate.

[0011] The beneficial effects of this invention are: The rapid cleaning mechanism's airbag retraction roll is installed in the circuit breaker's ventilation slot. During cleaning, simply press the inflatable airbag to deliver gas into the retraction roll. The retraction roll then transitions from a wound state to an inflated state, quickly straightening and lengthening. Its front end inserts into the corresponding ventilation slot, pushing out internal cobwebs and dust. To clean the rear ventilation slot, simply extract the gas from the retraction roll to restore it to its wound state, then move the mounting plate. Moving the mounting plate will cause the retraction roll to carry out impurities from the rear passageway. The entire operation is convenient and efficient, improving the circuit breaker's cleaning efficiency. It solves the problem of cleaning the rear ventilation slot and avoids the decrease in ventilation efficiency caused by incomplete cleaning of the ventilation slot and rear passageway. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 The front view provided for this invention; Figure 2 A side view provided for this invention; Figure 3 Top view provided for this invention; Figure 4 A detailed structural diagram of the mounting plate provided by this invention; Figure 5 This is a structural diagram showing the portion of the mounting plate separated from the circuit breaker provided by the present invention.

[0014] In the diagram: 1. Circuit breaker; 2. Ventilation slot; 3. Passage slot; 4. Quick cleaning mechanism; 41. Guide slot; 42. Fixing base; 43. Guide rod; 44. Mounting plate; 45. Air supply slot; 46. Delivery pipe; 47. Support rod; 48. Inflatable airbag; 49. Positioning rod; 50. Positioning block; 51. Connecting pipe; 52. Airbag retraction roll; 53. Scraper. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1 to 5 The present invention provides the following technical solutions: A switching power supply circuit breaker protection device includes a circuit breaker 1, with symmetrically arranged ventilation slots 2 on the circuit breaker 1 and a passage slot 3 on the back of the circuit breaker 1. The circuit breaker 1 is equipped with a quick cleaning mechanism 4, which includes two guide grooves 41 and two fixed seats 42. Guide rods 43 are slidably connected inside the guide grooves 41. A mounting plate 44 is fixedly connected between the guide rods 43. An air supply groove 45 is fixedly connected inside the mounting plate 44. A delivery pipe 46 is fixedly connected at the middle position of the side wall of the mounting plate 44. Symmetrically arranged support rods 47 are fixedly connected to the side wall of the mounting plate 44. An inflatable airbag 48 is fixedly connected to one end of the support rods 47. Symmetrically arranged positioning rods 49 are fixedly connected to the side wall of the mounting plate 44. Positioning blocks 50 are fixedly connected to the side ends of the positioning rods 49. Connecting pipes 51 are fixedly connected to the mounting plate 44 at the positions corresponding to the ventilation grooves 2. Airbag retraction rolls 52 are fixedly connected to the connecting pipes 51. A scraper 53 is fixedly connected to the mounting plate 44 at the positions corresponding to the passage grooves 3.

[0017] Ventilation slots 2 are located at the front end of passage slots 3, and both ventilation slots 2 and passage slots 3 are connected. Guide slots 41 are symmetrically opened on the circuit breaker 1 at positions corresponding to passage slots 3, and both guide slots 41 are connected to passage slots 3. Gas entering from the ventilation slots 2 can easily exit through the passage slots 3, and similarly, air entering from the passage slots 3 can also exit through the ventilation slots 2. The combination of the two can effectively ensure the ventilation performance of the circuit breaker 1. Fixing seats 42 are symmetrically fixedly connected to the side wall of the circuit breaker 1. The fixing seats 42 are all made of plastic and are flexible. Each fixing seat 42 is snapped into a corresponding positioning block 50. The snapping of the fixing seats 42 and the positioning block 50 facilitates the fixing of the mounting plate 44 inside the passage slot 3. The delivery pipe 46 is located on the mounting plate 44. At the midpoint of the two support rods 47 on the side wall, the support rods 47 are located at the midpoint of the two positioning rods 49 on the side wall of the mounting plate 44. Symmetrically arranged support plates are fixedly connected to the inflatable airbag 48. The support plates are all circular. One end of the delivery pipe 46 passes through the corresponding support plate and is fixedly connected to and through the inflatable airbag 48. The other end of the delivery pipe 46 is connected to the air supply groove 45 inside the mounting plate 44. The inflatable airbag 48 can easily deliver gas to the inside of the air supply groove 45 through the delivery pipe 46. The scraper 53 is slidably connected inside the passage groove 3. The airbag retraction roll 52 is connected to the connecting pipe 51. The connecting pipe 51 is connected to the air supply groove 45 inside the mounting plate 44. The connecting pipe 51 can easily deliver gas inside the air supply groove 45 to the inside of the airbag retraction roll 52.

[0018] During use, when the current in the power circuit exceeds the rated value, the handle switch of circuit breaker 1 will be automatically triggered to trip and disconnect the power supply, preventing damage to the switching power supply and downstream loads due to overheating. This is a mature and known existing technology, and will not be elaborated further here. The connection between ventilation slot 2 and passage slot 3 allows gas to flow inside both, thereby ensuring the ventilation and heat dissipation effect of circuit breaker 1. After the circuit breaker 1 has been used for a period of time, the user can manually press the inflatable air bag 48 through the front support plate. The rear support plate and support rod 47 can... To support the inflatable airbag 48, when the airbag 48 is pressed, the gas inside it rushes into the air delivery channel 45 inside the mounting plate 44 through the delivery pipe 46. The continuous gas delivery from the inflatable airbag 48 causes the gas to rush into the connecting pipe 51 within the air delivery channel 45, and then quickly enter the airbag retraction roll 52 through the connecting pipe 51. At this point, the airbag retraction roll 52 receives the gas and quickly inflates. The inflated airbag retraction roll 52 no longer remains in a coiled state, and its front end quickly moves towards the opposite direction. The airbag retractor 52 extends out from the ventilation slot 2, quickly pushing out dust and cobwebs from the opening of the ventilation slot 2, thus completing the rapid cleaning of both ventilation slots 2. This method is highly convenient, eliminating the need for the user to clean each ventilation slot 2 individually. Afterwards, the inflatable airbag 48 is returned to its original state. At this point, all the gas returns to the interior of the inflatable airbag 48, and the airbag retractor 52, unable to fully inflate, will retract to its original state. Then, the two positioning rods 49 can be used to forcefully push the positioning block 50 from the fixed base 4. Pull out from step 2. At this time, the fixed position of the mounting plate 44 is released, and the mounting plate 44 can be moved by the positioning rod 49. The mounting plate 44 will drive the guide rod 43 to move inside the guide groove 41. The guide rod 43 will guide its movement. The movement of the mounting plate 44 will also drive the scraper 53 and the airbag retraction roll 52 to move. At this time, the scraper 53 and the airbag retraction roll 52 moving inside the passage groove 3 will clean the inside of the passage groove 3 to prevent the passage groove 3 from becoming blocked due to the increase of the usage time, which would reduce the heat dissipation efficiency of the circuit breaker 1.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switching power supply circuit breaker protection device, characterized in that: Includes a circuit breaker (1), on which symmetrical ventilation slots (2) are provided, and on the back of the circuit breaker (1) a passage slot (3); The circuit breaker (1) is provided with a quick cleaning mechanism (4), which includes two guide grooves (41) and two fixed seats (42). Guide rods (43) are slidably connected inside the guide grooves (41). A mounting plate (44) is fixedly connected between the guide rods (43). An air supply groove (45) is fixedly connected inside the mounting plate (44). A delivery pipe (46) is fixedly connected at the middle position of the side wall of the mounting plate (44). Symmetrically arranged supports are fixedly connected to the side wall of the mounting plate (44). The support rod (47) is fixedly connected to an inflatable airbag (48) at one end. The mounting plate (44) is fixedly connected to a symmetrically arranged positioning rod (49) on its side wall. The positioning rod (49) is fixedly connected to a positioning block (50) at its side end. The mounting plate (44) is fixedly connected to a connecting pipe (51) at the position corresponding to the ventilation groove (2). The connecting pipe (51) is fixedly connected to an airbag retraction roll (52). The mounting plate (44) is fixedly connected to a scraper (53) at the position corresponding to the passage groove (3).

2. The switching power supply circuit breaker protection device according to claim 1, characterized in that: The ventilation slot (2) is located at the front end of the passage slot (3), and the ventilation slot (2) is connected to the passage slot (3). The guide slot (41) is symmetrically opened on the circuit breaker (1) at the position corresponding to the passage slot (3), and the guide slot (41) is connected to the passage slot (3).

3. The switching power supply circuit breaker protection device according to claim 1, characterized in that: The fixing base (42) is symmetrically fixedly connected to the side wall of the circuit breaker (1). The fixing base (42) is made of plastic and has toughness. The fixing base (42) is snapped into the corresponding positioning block (50).

4. The switching power supply circuit breaker protection device according to claim 1, characterized in that: The delivery pipe (46) is located in the middle of the two support rods (47) on the side wall of the mounting plate (44), and the support rods (47) are located in the middle of the two positioning rods (49) on the side wall of the mounting plate (44).

5. The switching power supply circuit breaker protection device according to claim 1, characterized in that: The inflatable airbag (48) is fixedly connected to symmetrically arranged support plates, all of which are circular. One end of the delivery pipe (46) passes through the corresponding support plate and is fixedly connected to and through the inflatable airbag (48). The other end of the delivery pipe (46) is connected to the air delivery groove (45) inside the mounting plate (44).

6. The switching power supply circuit breaker protection device according to claim 1, characterized in that: The scraper (53) is slidably connected inside the passage groove (3), the airbag retraction roll (52) is connected to the connecting pipe (51), and the connecting pipe (51) is connected to the air supply groove (45) inside the mounting plate (44).

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