A circuit breaker mechanism of pneumatic principle

Abstract

The utility model discloses a circuit breaker mechanism of pneumatic principle, including the bottom plate, the bottom plate upper end is installed with the circuit breaker assembly of pneumatic principle, the circuit breaker assembly includes: controller, fixedly connected on the bottom plate upside, adjusting part, install on the bottom plate upside for adjusting pneumatic end, adjusting part includes with bottom plate upside fixed connection's air compressor, air compressor right side suction end is installed with the filter piece for filtering and dehumidification, air compressor front side exhaust end is fixedly connected with second electromagnetic valve, the utility model relates to pneumatic circuit breaker technical field. The circuit breaker mechanism of pneumatic principle, let check valve, first electromagnetic valve, first three -way valve, two groups of first conduit, gas holder, second conduit, pressure gauge, second three -way valve, gas pipe, second electromagnetic valve, air compressor cooperate with each other, according to the need, when the corresponding gas holder needs to be filled with air, the gas supply end of compressed gas is switched to another group of built -in compressed air gas holder.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic circuit breaker technology, specifically a circuit breaker mechanism based on pneumatic principle. Background Technology

[0002] Pneumatic circuit breakers, powered by compressed air, perform excellently in high-voltage, rapid disconnection scenarios. Referring to patent publication number CN216793586U, a pneumatic circuit breaker mechanism includes an outer frame, a high-pressure gas cylinder installed inside the outer frame, a main rotating shaft of the circuit breaker mounted on the outer frame, a circuit breaker control unit installed inside the outer frame, and a closing holding module also installed inside the outer frame. This facilitates quick assembly and disassembly of the plug-in, and consequently, the installation of high-pressure air supply pipes for closing and opening. As described in the aforementioned patent, when using existing pneumatic circuit breaker mechanisms, if the gas storage at the gas storage end is insufficient, corresponding gas replenishment is required. If the circuit breaker mechanism requires gas supply at this time, insufficient gas supply will also affect the gas replenishment operation at the gas storage end, and interrupting the operation of the circuit breaker mechanism will affect the efficiency of the device, causing losses. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a circuit breaker mechanism based on pneumatic principles, which solves the problem that the device is unable to cope with the gas supply required by the circuit breaker during the gas replenishment process at the gas storage end, thus affecting the efficiency of the device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic circuit breaker mechanism, comprising a base plate, wherein a pneumatic circuit breaker assembly is mounted on the upper end of the base plate, the circuit breaker assembly comprising:

[0005] The controller is fixedly connected to the upper side of the base plate;

[0006] An adjusting component, installed on the upper side of the base plate for adjusting the pneumatic end, includes an air compressor fixedly connected to the upper side of the base plate. A filter for filtration and dehumidification is installed on the right side of the air compressor's suction end. A second solenoid valve is fixedly connected to the front exhaust end of the air compressor. An air supply pipe is fixedly connected to the front of the second solenoid valve. A second three-way valve for switching the direction of compressed air flow is fixedly connected to the bottom of the air supply pipe. A set of storage components for storing compressed air is installed on both sides of the second three-way valve. The bottom of both sets of storage components is connected to a second three-way valve for switching the compressed air supply source. A first solenoid valve is fixedly connected to the bottom of the second three-way valve. A check valve is fixedly connected to the right side of the bottom of the first solenoid valve.

[0007] The main body of the pneumatic circuit breaker is fixedly connected to the upper side of the base plate;

[0008] The injection pipe is fixedly connected to the right side of the check valve and the left side of the pneumatic circuit breaker body to supply air to the inside of the pneumatic circuit breaker body.

[0009] Preferably, the controller is electrically connected to the first solenoid valve, the first three-way valve, the second three-way valve, the second solenoid valve, the air compressor, and the main body of the pneumatic circuit breaker.

[0010] Preferably, the storage component includes a first conduit fixedly connected to the side of the second three-way valve, a gas storage tank fixedly connected to the bottom of the first conduit, a second conduit fixedly connected to the bottom of the gas storage tank and fixedly connected to the side of the first three-way valve, a pressure gauge for detecting gas pressure fixedly connected to the front of the gas storage tank, and a set of support plates fixedly connected to the upper and lower sides of the base plate near the gas storage tank, respectively.

[0011] Preferably, the gas storage tank is fixedly connected to the first conduit and the second conduit via two sets of first flanges, and the support plate is provided with a movable groove near the two sets of first flanges.

[0012] Preferably, the filter element includes an air extraction pipe fixedly connected to the right side of the air compressor's extraction end, a third three-way valve for switching air extraction is fixedly connected to the right side of the air extraction pipe, a set of housings are fixedly connected to the front and rear sides of the third three-way valve, a water-absorbing bag is slidably connected inside the housing, and a filter plate is installed on the side of the housing away from the third three-way valve.

[0013] Preferably, the third three-way valve is fixedly connected to the two sets of housings respectively through the second flange, the water-absorbing bag is filled with granular molecular sieve, the filter plate is fixedly connected to the inner side of the housing with a threaded ring, the housing is threadedly connected to the threaded ring, and the surface of the filter plate is provided with a number of filter holes for filtering impurities.

[0014] Beneficial effects

[0015] This invention provides a circuit breaker mechanism based on a pneumatic principle. Compared with the prior art, it has the following advantages:

[0016] 1. The pneumatic circuit breaker mechanism, by setting an adjusting component within the device, allows the check valve, the first solenoid valve, the first three-way valve, two sets of first conduits, the air tank, the second conduit, the pressure gauge, the second three-way valve, the air supply pipe, the second solenoid valve, and the air compressor to cooperate with each other. As needed, when the corresponding air tank needs to be replenished, the supply end of compressed gas is switched to another set of air tanks with built-in compressed air. This facilitates the subsequent air supply to the main body of the pneumatic circuit breaker, prevents the need to replenish the air tank from affecting the air supply to the main body of the pneumatic circuit breaker, improves the efficiency of the device, and achieves uninterrupted air supply to the main body of the pneumatic circuit breaker.

[0017] 2. This pneumatic circuit breaker mechanism incorporates a filter within the device. During the process of the air compressor drawing air from the outside through the extraction pipe, the third three-way valve, a set of housings, a water-absorbing bag, and a filter plate, the filter plate filters solid impurities from the gas, and the water-absorbing bag absorbs moisture from the gas. When the water-absorbing bag needs to be replaced, the third three-way valve is reversed. At this time, the air compressor draws air from the outside through the extraction pipe, the third three-way valve, another set of housings, a water-absorbing bag, and a filter plate. The original filter plate and threaded ring on the housing are rotated to separate the filter plate from the housing, and the water-absorbing bag inside the housing is replaced. Then, all components are reset. This setup provides pre-filtration and dehumidification for the air drawn by the air compressor, preventing solid impurities and moisture from entering the air storage end and affecting the main operation of the pneumatic circuit breaker. Furthermore, switching the extraction direction facilitates the replacement of the molecular sieve inside the corresponding water-absorbing bag. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is an enlarged view of the storage component of this utility model;

[0020] Figure 3 This is an enlarged cross-sectional view of the filter element of this utility model;

[0021] Figure 4 This is a side view of the present invention.

[0022] In the diagram: 1. Base plate; 2. Controller; 3. Adjusting component; 31. Check valve; 32. First solenoid valve; 33. First three-way valve; 34. Storage component; 341. First conduit; 342. Air tank; 343. Second conduit; 344. Pressure gauge; 35. Second three-way valve; 36. Air supply pipe; 37. Second solenoid valve; 38. Air compressor; 39. Filter element; 391. Air extraction pipe; 392. Third three-way valve; 393. Housing; 394. Water absorption bag; 395. Filter plate; 4. Pneumatic circuit breaker body; 5. Injection pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] See Figures 1-4 This utility model provides the following two technical solutions:

[0025] First embodiment: A pneumatic circuit breaker mechanism, including a base plate 1, on which a pneumatic circuit breaker assembly is mounted, the circuit breaker assembly including: a controller 2, fixedly connected to the upper side of the base plate 1;

[0026] Adjusting component 3, installed on the upper side of base plate 1 for adjusting the pneumatic end, includes an air compressor 38 fixedly connected to the upper side of base plate 1. A filter 39 for filtration and dehumidification is installed on the right side of the air compressor 38's suction end. A second solenoid valve 37 is fixedly connected to the front exhaust end of the air compressor 38. An air supply pipe 36 is fixedly connected to the front of the second solenoid valve 37. A second three-way valve 35 for switching the direction of compressed air flow is fixedly connected to the bottom of the air supply pipe 36. A set of storage components 34 for storing compressed air is installed on both sides of the second three-way valve 35. The bottom of the two sets of storage components 34 is connected to a second three-way valve 35 for switching the compressed air supply source. A first solenoid valve 32 is fixedly connected to the bottom of the second three-way valve 35. A check valve 31 is fixedly connected to the right side of the bottom of the first solenoid valve 32.

[0027] The pneumatic circuit breaker body 4 is fixedly connected to the upper side of the base plate 1; the injection pipe 5 is fixedly connected to the right side of the check valve 31 and the left side of the pneumatic circuit breaker body 4 respectively to supply air to the inside of the pneumatic circuit breaker body 4; the controller 2 is electrically connected to the first solenoid valve 32, the first three-way valve 33, the second three-way valve 35, the second solenoid valve 37, the air compressor 38, and the pneumatic circuit breaker body 4 respectively; the storage component 34 includes a first conduit 341 fixedly connected to the side of the second three-way valve 35, an air tank 342 fixedly connected to the bottom of the first conduit 341, a second conduit 343 fixedly connected to the side of the first three-way valve 33 fixedly connected to the bottom of the air tank 342, a pressure gauge 344 fixedly connected to the front of the air tank 342 for detecting air pressure, and a set of support plates fixedly connected to the upper and lower sides of the base plate 1 near the air tank 342 respectively; the pressure gauge 344 is electrically connected to the controller 2;

[0028] The air tank 342 is fixedly connected to the first conduit 341 and the second conduit 343 respectively through two sets of first flanges. The support plate has a movable groove near the two sets of first flanges. The check valve 31, the first solenoid valve 32, the first three-way valve 33, the two sets of first conduits 341, the air tank 342, the second conduit 343, the pressure gauge 344, the second three-way valve 35, the air supply pipe 36, the second solenoid valve 37, and the air compressor 38 cooperate with each other. As needed, when the corresponding air tank 342 needs to be replenished, the supply end of the compressed gas is switched to another set of air tanks 342 with built-in compressed air, which helps to supply air to the pneumatic circuit breaker body 4 in the future.

[0029] The main difference between the second implementation method and the first implementation method is that:

[0030] The filter element 39 includes an air extraction pipe 391 fixedly connected to the right air extraction end of the air compressor 38. A third three-way valve 392 for switching air extraction is fixedly connected to the right side of the air extraction pipe 391. A set of housings 393 are fixedly connected to the front and rear sides of the third three-way valve 392 respectively. A water absorption bag 394 is slidably connected inside the housing 393. A filter plate 395 is installed on the side of the housing 393 away from the third three-way valve 392.

[0031] The third three-way valve 392 is fixedly connected to the two sets of housings 393 respectively through the second flange. The water absorption bag 394 is filled with granular molecular sieve. The filter plate 395 is fixedly connected to the inner side of the housing 393. The housing 393 is threadedly connected to the threaded ring. The surface of the filter plate 395 is provided with several filter holes for filtering impurities. The third three-way valve 392 is electrically connected to the controller 2.

[0032] During the process of air compressor 38 drawing air from the outside through air extraction pipe 391, third three-way valve 392, a set of housings 393, water suction bag 394, and filter plate 395, the filter plate 395 filters solid impurities in the gas, and the water suction bag 394 absorbs moisture in the gas. When the water suction bag 394 needs to be replaced, the third three-way valve 392 is reversed. At this time, air compressor 38 draws air from the outside through air extraction pipe 391, third three-way valve 392, another set of housings 393, water suction bag 394, and filter plate 395. The filter plate 395 and threaded ring on the original housing 393 are rotated to separate the filter plate 395 from the housing 393. The water suction bag 394 inside the housing 393 is then replaced, and then all components are reset.

[0033] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0034] In use, the user sends a trip signal through the controller 2, the first solenoid valve 32 opens, and the compressed air in the air tank 342 of the storage unit 34 enters the trip chamber in the pneumatic circuit breaker body 4 through the first three-way valve 33, the first solenoid valve 32, and the check valve 31, and pushes the piston to move in the opposite direction, causing the contacts to break. When the circuit in the pneumatic circuit breaker body 4 is overloaded or short-circuited, the heat generated by the current causes the thermal trip device to operate, or the electromagnetic force generated by the short-circuit current causes the electromagnetic trip device to operate, triggering the tripping mechanism, releasing the latch, and the contacts break quickly under the action of the tripping spring or compressed air. The pneumatic circuit breaker body 4 is existing technology, so its internal structure and working principle will not be described in detail.

[0035] During the above process, pressure gauge 344 continuously monitors the air pressure inside air tank 342. After the contact is disconnected, the first solenoid valve 32 is closed. When the air pressure inside air tank 342 decreases to the point where air needs to be replenished, the first three-way valve 33 and the second three-way valve 35 are reversed, and the second solenoid valve 37 and air compressor 38 are opened. Air compressor 38 draws air from the outside through suction pipe 391, third three-way valve 392, a set of housings 393, water-absorbing bag 394, and filter plate 395. Among them, filter plate 395 filters solid impurities in the gas, and water-absorbing bag 394 absorbs moisture in the gas. Then, air compressor 38 compresses the air and injects the compressed air into the original air tank 342 through second solenoid valve 37, air supply pipe 36, second three-way valve 35, and first conduit 341. After the air pressure inside air tank 342 reaches a suitable value, the second solenoid valve 37 and air compressor 38 are closed.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker mechanism based on pneumatic principle, comprising a base plate (1), characterized in that: A pneumatic circuit breaker assembly is installed on the upper end of the base plate (1), the circuit breaker assembly comprising: The controller (2) is fixedly connected to the upper side of the base plate (1); Adjustment component (3), installed on the upper side of base plate (1) for adjusting pneumatic end, the adjustment component (3) includes air compressor (38) fixedly connected to the upper side of base plate (1), the air compressor (38) has a filter component (39) for filtration and dehumidification installed on the right side of the air intake end, the air compressor (38) has a second solenoid valve (37) fixedly connected to the front exhaust end, the second solenoid valve (37) has an air supply pipe (36) fixedly connected to the front side, the air supply pipe (36) has a second three-way valve (35) for switching compressed air flow direction fixedly connected to the bottom, the second three-way valve (35) has a set of storage components (34) for storing compressed air installed on both sides, the bottom of the two sets of storage components (34) is connected to a set of second three-way valve (35) for switching compressed air supply source, the bottom of the second three-way valve (35) has a first solenoid valve (32) fixedly connected to the bottom, the bottom right side of the first solenoid valve (32) has a check valve (31) fixedly connected to the bottom; The main body (4) of the pneumatic circuit breaker is fixedly connected to the upper side of the base plate (1); The injection pipe (5) is fixedly connected to the right side of the check valve (31) and the left side of the pneumatic circuit breaker body (4) to supply air to the inside of the pneumatic circuit breaker body (4).

2. The circuit breaker mechanism based on pneumatic principle according to claim 1, characterized in that: The controller (2) is electrically connected to the first solenoid valve (32), the first three-way valve (33), the second three-way valve (35), the second solenoid valve (37), the air compressor (38), and the pneumatic circuit breaker body (4).

3. The circuit breaker mechanism based on pneumatic principle according to claim 1, characterized in that: The storage unit (34) includes a first conduit (341) fixedly connected to the side of the second three-way valve (35), a gas storage tank (342) fixedly connected to the bottom of the first conduit (341), a second conduit (343) fixedly connected to the bottom of the gas storage tank (342) and fixedly connected to the side of the first three-way valve (33), a pressure gauge (344) for detecting gas pressure fixedly connected to the front of the gas storage tank (342), and a set of support plates fixedly connected to the upper and lower sides of the base plate (1) near the gas storage tank (342).

4. A circuit breaker mechanism based on a pneumatic principle according to claim 3, characterized in that: The gas storage tank (342) is fixedly connected to the first conduit (341) and the second conduit (343) respectively through two sets of first flanges, and the support plate is provided with a movable groove near the two sets of first flanges.

5. A circuit breaker mechanism based on a pneumatic principle according to claim 1, characterized in that: The filter element (39) includes an air extraction pipe (391) fixedly connected to the right air extraction end of the air compressor (38). A third three-way valve (392) for switching air extraction is fixedly connected to the right side of the air extraction pipe (391). A set of housings (393) are fixedly connected to the front and rear sides of the third three-way valve (392). A water-absorbing bag (394) is slidably connected inside the housing (393). A filter plate (395) is installed on the side of the housing (393) away from the third three-way valve (392).

6. A circuit breaker mechanism based on a pneumatic principle according to claim 5, characterized in that: The third three-way valve (392) is fixedly connected to the two sets of housings (393) respectively through the second flange. The water-absorbing bag (394) is filled with granular molecular sieve. The filter plate (395) is fixedly connected to the inner side of the housing (393) with a threaded ring. The housing (393) is threadedly connected to the threaded ring. The surface of the filter plate (395) is provided with a number of filter holes for filtering impurities.

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