Energy storage type emergency starting device

Abstract

The application relates to an energy storage type emergency starting device, which comprises two emergency starting mechanisms arranged on two AC contactors respectively, and an interlocking transmission mechanism for controlling the two emergency starting mechanisms to synchronously execute opening and closing actions. The emergency starting mechanism comprises a shell, an energy storage operating assembly, the energy storage operating assembly comprises a mechanism frame, a rotating shaft, a first driving arm, a driving shaft, a second driving arm rotatably arranged on the rotating shaft and linked with the driving shaft, an energy storage spring assembly arranged between the driving shaft and the mechanism frame, a push plate slidably arranged on the mechanism frame and linked with the driving shaft, a push block slidably arranged in the shell, and a connecting rod arranged between the push plate and the push block. The push block is driven to move along with the connecting rod and can drive the two AC contactors to execute opening and closing actions. The application has the advantages of simple structure, stable and reliable performance, long service life, small volume and the ability to effectively realize fast opening and closing of the two contactors.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and more specifically to an energy storage-type emergency start-up device. Background Technology

[0002] A contactor is an electrical device used in industrial electricity that uses a coil to generate a magnetic field, causing contacts to close and thus controlling a load. Contactors are widely used in the control circuits of fire pumps. Under normal control conditions, when the contactor coil is energized, the current flowing through the coil generates a magnetic field that attracts the armature to the iron core, causing the main contacts of the contactor to close and the main circuit to be connected. When the contactor coil is de-energized, the current flowing through the coil disappears, and the electromagnetic attraction of the armature also disappears. The armature is released by the release spring, causing the main contacts of the contactor to separate and the main circuit to be disconnected. Because the power for the contactor's operation comes from the magnetic field generated by the current passing through the coil with an iron core, if the controller or control circuit malfunctions, a conventional contactor loses its power source, preventing the main contacts from operating. In the event of a fire, the fire pump will not start, causing the fire protection system to fail. Therefore, mechanical emergency start devices for controlling contactors have emerged on the market. These devices are primarily used to allow authorized personnel to mechanically start the fire pump in emergencies when the secondary circuit of the fire pump cabinet controller or the contactor controlling the fire pump malfunctions, or in other situations requiring mechanical emergency start of the fire pump. However, existing emergency start devices cannot simultaneously achieve rapid opening and closing of two AC contactors, resulting in a relatively weak breaking capacity for the AC contactors. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art and provide an energy storage emergency starting device that is simple in structure, stable and reliable in performance, long in service life, small in size, and can effectively realize the rapid opening and closing of two contactors.

[0004] To achieve the above objectives, the present invention employs an energy storage emergency start device, comprising two emergency start mechanisms respectively mounted on two AC contactors, and an interlocking transmission mechanism for controlling the two emergency start mechanisms to synchronously perform opening and closing actions. Each emergency start mechanism includes a housing and an energy storage operating component disposed within the housing. The energy storage operating component includes a frame, a rotating shaft rotatably mounted on the frame, a first drive arm linked to the rotating shaft, a drive shaft linked to the first drive arm, a second drive arm rotatably mounted on the rotating shaft and linked to the drive shaft, an energy storage spring assembly disposed between the drive shaft and the frame, a push plate slidably mounted on the frame and linked to the drive shaft, a push block slidably mounted within the housing, and a connecting rod disposed between the push plate and the push block. The push block moves with the connecting rod and can drive the two AC contactors to perform opening or closing actions.

[0005] The beneficial effects of the above structure are as follows: This energy storage emergency start device adopts an energy storage operating structure design. The energy storage spring assembly can store energy and accelerate the movement of the push plate. During operation, the rotating shaft drives the first drive arm, which in turn drives the second drive arm via the drive shaft. The drive shaft compresses the energy storage spring assembly, storing energy in the spring. When the second drive arm and drive shaft pass the dead point (midpoint), the energy storage spring releases energy, causing the drive shaft to drive the push plate to slide rapidly. The push plate, through a connecting rod, drives the push block to slide faster. The push blocks of the two emergency start mechanisms respectively push the closing buttons of the two AC contactors, thereby achieving rapid opening or closing of the two AC contactors, effectively improving the product's breaking capacity. An interlocking transmission mechanism is set between the two emergency start mechanisms. The interlocking transmission assembly can interlock and transmit, ensuring that the two emergency start mechanisms can simultaneously perform closing or opening actions, resulting in better synchronization. Therefore, the transmission mechanism of this energy storage emergency start device has the advantages of simple structure, stable and reliable performance, long service life, low cost, small size, and the ability to effectively realize the quick opening and closing of the contactor.

[0006] Specifically, the interlocking transmission mechanism includes two sets of gears respectively mounted on the two emergency starting mechanisms, and a transmission plate disposed between the two gear sets. Each gear set includes a gear linked to a rotating shaft and a rack meshing with the gear. Both ends of the transmission plate are connected to the racks of the two gear sets respectively. The interlocking transmission mechanism employs a gear and rack structure design, which provides interlocking, ensuring that the two emergency starting mechanisms can simultaneously perform closing or opening actions, resulting in better synchronization.

[0007] Specifically, the housing is equipped with a microswitch that cooperates with the transmission plate and rack. The transmission plate and rack move with the gears and can trigger the microswitch, thus turning the microswitch on or off. The microswitch can monitor the working position of the two emergency start mechanisms and send the monitored signals to the backend, thereby realizing remote monitoring of the working status of the energy storage emergency start device.

[0008] Specifically, the housing contains a circuit board electrically connected to the micro switch, and the circuit board has exposed terminals. The micro switch and terminals are integrated on the circuit board, enabling modular assembly of the micro switch, terminals, and circuit board.

[0009] Specifically, the energy storage spring assembly includes a spring bracket rotatably mounted on a positioning shaft of the mechanism frame, and an energy storage spring fitted onto the spring bracket. Both ends of the energy storage spring abut against a drive shaft and a limiting block of the spring bracket, respectively. The spring bracket is provided with a guide groove that mates with the drive shaft. The drive shaft moves with the first drive arm and can reciprocate within the guide groove. The drive shaft is slidably positioned within the guide groove of the spring bracket, thereby compressing the energy storage spring and enabling reliable energy storage or release, thus improving the operational reliability of the energy storage spring assembly.

[0010] Specifically, the first drive arm is provided with a guide sliding hole corresponding to the drive shaft, and the drive shaft passes through the guide sliding hole. The drive shaft's insertion into the guide sliding hole ensures that the first drive arm can reliably drive the drive shaft, thereby improving the operational reliability of the emergency start device.

[0011] Specifically, the push plate is provided with a dial hole that mates with the drive shaft, which passes through the dial hole. Two guide plates are formed by vertical bends on both sides of the push plate. The mechanism frame is provided with guide holes that mate with the guide plates. The guide plates are slidably disposed within the guide holes. A positioning shaft connected to a connecting rod is provided between the two guide plates. The guide plates of the push plate are slidably disposed within the guide holes of the mechanism frame, thereby ensuring reliable operation of the push plate on the mechanism frame and improving the operational reliability of the emergency starting device.

[0012] Specifically, the push block is provided with a guide shaft connected to the connecting rod, and guide grooves are respectively provided at both ends of the guide shaft inside the housing. The two ends of the guide shaft are slidably disposed in the guide grooves. The guide shaft on the push block is slidably disposed inside the housing, thereby ensuring that the push block can reliably move within the housing, which is beneficial to improving the working reliability of the energy storage emergency start device.

[0013] Specifically, the mechanism frame is provided with arc-shaped guide holes at both ends of the drive shaft, and the two ends of the drive shaft pass through the arc-shaped guide holes, forming a sliding connection between the drive shaft and the mechanism frame. The drive shaft passing through the arc-shaped guide holes of the mechanism frame ensures reliable operation of the drive shaft, which helps to improve the working reliability of the energy storage emergency start device. Attached Figure Description

[0014] Figure 1 This is a perspective view of an energy storage type emergency start AC contactor according to an embodiment of the present invention.

[0015] Figure 2 This is an exploded view of an embodiment of the present invention.

[0016] Figure 3This is a perspective view of the energy storage operation component according to an embodiment of the present invention.

[0017] Figure 4 This is a perspective view of the energy storage spring assembly according to an embodiment of the present invention.

[0018] Figure 5 This is an assembly diagram of the push plate, push block, and connecting rod according to an embodiment of the present invention.

[0019] Figure 6 This is an assembly diagram of the pusher block and the housing according to an embodiment of the present invention. Detailed Implementation

[0020] like Figures 1-6As shown, this embodiment of the invention is an energy storage emergency start device, including two emergency start mechanisms 20 respectively mounted on two AC contactors 10, and an interlocking transmission mechanism 40 for controlling the two emergency start mechanisms 20 to synchronously perform opening and closing actions. The emergency start mechanism 20 includes a housing 21 and an energy storage operation component 22 mounted inside the housing 21. The energy storage operation component 22 includes a frame 23, a rotating shaft 24 rotatably mounted on the frame 23, a first drive arm 25 linked with the rotating shaft 24, a drive shaft 26 linked with the first drive arm 25, a second drive arm 27 rotatably mounted on the rotating shaft 24 and linked with the drive shaft 26, an energy storage spring assembly 28 mounted between the drive shaft 26 and the frame 23, a push plate 29 slidably mounted on the frame 23 and linked with the drive shaft 26, a push block 30 slidably mounted inside the housing 21, and a connecting rod 31 mounted between the push plate 29 and the push block 30. The push block 30 moves with the connecting rod 31 and can drive the two AC contactors 10 to perform opening or closing actions. The interlocking transmission mechanism 40 includes two sets of gears 41 respectively mounted on the two emergency start mechanisms 20, and a transmission plate 42 disposed between the two gear sets 41. Each gear set 41 includes a gear 411 linked to a rotating shaft 24 and a rack 412 meshing with the gear 411. Both ends of the transmission plate 42 are connected to the racks 412 of the two gear sets 41 respectively. The interlocking transmission mechanism adopts a gear and rack structure design, which can achieve interlocking, thus ensuring that the two emergency start mechanisms can simultaneously perform closing or opening actions, resulting in better synchronization. A microswitch 43 is disposed within the housing 21, cooperating with the transmission plate 42 and the rack 412. The transmission plate 42 and the rack 412 move with the gears 411 and can trigger the microswitch 43, thus enabling the microswitch 43 to be turned on or off. The microswitch can monitor the working position of the two emergency start mechanisms and can send the monitored signals to the backend, thereby realizing remote monitoring of the working status of the energy storage emergency start device. The housing 21 contains a circuit board 44 electrically connected to the micro switch 43, and the circuit board 44 has terminals 45 exposed outside the housing 21. The micro switch and terminals are integrated on the circuit board, which is modular and allows for modular assembly of the micro switch, terminals, and circuit board.

[0021] like Figure 3 and 4As shown, the energy storage spring assembly 28 includes a spring bracket 281 rotatably mounted on a positioning shaft 231 of the mechanism frame 23, and an energy storage spring 282 fitted on the spring bracket 281. The two ends of the energy storage spring 282 respectively abut against the drive shaft 26 and the limiting block 2811 of the spring bracket 281. The spring bracket 281 is provided with a guide groove 2812 that cooperates with the drive shaft 26. The drive shaft 26 moves with the first drive arm 25 and can reciprocate within the guide groove 2812. The drive shaft is slidably mounted within the guide groove of the spring bracket, thereby compressing the energy storage spring and enabling reliable energy storage or release, thus improving the operational reliability of the energy storage spring assembly. The first drive arm 25 is provided with a guide sliding hole 251 corresponding to the drive shaft 26, and the drive shaft 26 passes through the guide sliding hole 251. The drive shaft is inserted into the guide sliding hole, ensuring that the first drive arm can reliably drive the drive shaft, thereby improving the operational reliability of the emergency start device. The push plate 29 is provided with a dial hole 291 that mates with the drive shaft 26, which passes through the dial hole 291. Two guide plates 292 are vertically bent on both sides of the push plate 299. The mechanism frame 23 is provided with guide holes 232 that mate with the guide plates 292, and the guide plates 292 are slidably disposed within the guide holes 232. A positioning shaft 293 connected to the connecting rod 31 is provided between the two guide plates 292. The guide plates of the push plate are slidably disposed within the guide holes of the mechanism frame, ensuring that the push plate can reliably move on the mechanism frame, thereby improving the operational reliability of the emergency start device. The push block 30 is provided with a guide shaft 301 connected to the connecting rod 31. Guide grooves 211 are respectively provided at both ends of the guide shaft 301 within the housing 21. The two ends of the guide shaft 301 are slidably disposed within the guide grooves 211. The guide shaft on the push block is slidably disposed within the housing, thereby ensuring that the push block can reliably operate within the housing, which is beneficial to improving the working reliability of the energy storage emergency start-up device.

[0022] like Figure 2 and 6 As shown, the mechanism frame 23 has arc-shaped guide holes 233 at both ends corresponding to the drive shaft 26. The two ends of the drive shaft 26 pass through the arc-shaped guide holes 233, forming a sliding connection between the drive shaft 26 and the mechanism frame 23. The drive shaft passing through the arc-shaped guide holes of the mechanism frame ensures reliable operation of the drive shaft, which helps to improve the working reliability of the energy storage emergency start device.

[0023] This energy storage emergency start device adopts an energy storage operating structure design. The energy storage spring assembly can store energy and accelerate the movement of the push plate. During operation, the rotating shaft drives the first drive arm, which in turn drives the second drive arm via the drive shaft. The drive shaft compresses the energy storage spring assembly, storing energy. When the second drive arm and drive shaft pass the dead point (midpoint), the energy storage spring releases energy, causing the drive shaft to drive the push plate to slide rapidly. The push plate, through a connecting rod, drives the push block to slide faster. The push blocks of the two emergency start mechanisms respectively push the closing buttons of two AC contactors, thereby realizing the rapid opening or closing of the two AC contactors, effectively improving the breaking capacity of the product. An interlocking transmission mechanism is set between the two emergency start mechanisms. The interlocking transmission component can interlock and transmit, ensuring that the two emergency start mechanisms can simultaneously perform closing or opening actions, with better synchronization. Therefore, the transmission mechanism of this energy storage emergency start device has the advantages of simple structure, stable and reliable performance, long service life, low cost, small size, and effective realization of rapid opening and closing of contactors.

Claims

1. An energy storage-type emergency start-up device, characterized in that: The device includes two emergency start mechanisms respectively mounted on two AC contactors, and an interlocking transmission mechanism for controlling the two emergency start mechanisms to synchronously perform opening and closing actions. Each emergency start mechanism includes a housing and an energy storage operating assembly housed within the housing. The energy storage operating assembly includes a frame, a rotating shaft rotatably mounted on the frame, a first drive arm linked to the rotating shaft, a drive shaft linked to the first drive arm, a second drive arm rotatably mounted on the rotating shaft and linked to the drive shaft, an energy storage spring assembly located between the drive shaft and the frame, a push plate slidably mounted on the frame and linked to the drive shaft, a push block slidably mounted within the housing, and a connecting rod located between the push plate and the push block. The push block moves with the connecting rod and can drive the two AC contactors to perform opening or closing actions. The energy storage spring assembly includes a spring bracket rotatably mounted on a positioning shaft of the frame and an energy storage spring mounted on the spring bracket. The energy storage spring has its two ends abutting against the drive shaft and the limiting block of the spring bracket, respectively. The spring bracket is provided with a guide groove that cooperates with the drive shaft. The drive shaft moves with the first drive arm and can reciprocate within the guide groove. The first drive arm is provided with a guide sliding hole corresponding to the drive shaft, and the drive shaft passes through the guide sliding hole. The push plate is provided with a push hole that cooperates with the drive shaft, and the drive shaft passes through the push hole. The push plate has two guide plates that are vertically bent on both sides. The mechanism frame is provided with guide holes that cooperate with the guide plates, and the guide plates are slidably disposed within the guide holes. A positioning shaft connected to a connecting rod is provided between the two guide plates. The mechanism frame is provided with arc-shaped guide holes corresponding to both ends of the drive shaft, and both ends of the drive shaft pass through the arc-shaped guide holes, forming a sliding connection between the drive shaft and the mechanism frame.

2. The energy storage emergency start-up device according to claim 1, characterized in that: The interlocking transmission mechanism includes two sets of gears respectively installed on two emergency start mechanisms and a transmission plate installed between the two gear sets. Each gear set includes a gear linked on a rotating shaft and a rack meshing with the gear. The two ends of the transmission plate are respectively connected to the racks of the two gear sets.

3. The energy storage emergency start-up device according to claim 2, characterized in that: The housing is equipped with a micro switch that cooperates with the transmission plate and rack. The transmission plate and rack move with the gear and can trigger the micro switch, thereby turning the micro switch on or off.

4. The energy storage emergency start-up device according to claim 3, characterized in that: The housing contains a circuit board that is electrically connected to a micro switch, and the circuit board has terminals exposed outside the housing.

5. The energy storage emergency start-up device according to claim 1 or 2, characterized in that: The push block is provided with a guide shaft connected to the connecting rod, and the housing is provided with guide grooves at both ends of the guide shaft, and the two ends of the guide shaft are slidably disposed in the guide grooves.

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