Low-cost emergency inversion switching-off device

Abstract

The invention provides a low-cost emergency inversion switching-off device. The low-cost emergency inversion switching-off device is characterized in that a mounting plate with air holes is mounted at the position, close to the middle, of the interior of a shell, and a power supply, a starting switch, a public switch and a door lock switch are mounted at the positions, close to one side, of the back face of the mounting plate; a control circuit, an oscillating circuit, a semiconductor switch and an inverter transformer are installed at the positions, close to the middle, of the back face of the mounting plate, and a voltage regulating circuit and a voltage collector are installed at the positions, close to the other side, of the back face of the mounting plate. According to the low-cost emergency inversion switching-off device provided by the invention, the power supply can be used for supplying power to the electromagnetic coil in an emergency manner and changing the power supply voltage of the electromagnetic coil in a delayed manner through the inversion switching-off device, so that the heating and power consumption of the electromagnetic coil during operation are reduced, and the damage to an inverter caused by power failure is reduced; and the practical cost of emergency inversion switching-off is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply applied to emergency brake opening, and in particular to a low-cost emergency inverter brake opening device. Background Art

[0002] An inverter is a converter that converts DC power into constant frequency and voltage or frequency and voltage regulated AC power. It consists of an inverter bridge, control logic and filter circuits. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc.

[0003] In the inverter system, by optimizing the design of the closing start circuit and the soft start circuit solution, the inverter main switch device can be effectively protected, the dynamic bias and saturation of the inverter main transformer can be suppressed, and the closing process can be reduced, thereby improving the performance of the system or device and ensuring the working reliability of the system. Before the inverter circuit starts working, for the inverter or power conversion device with DC output, the voltage on the output filter capacitor is generally zero. For the frequency converter, the motor load generally does not rotate. If the inverter circuit is started according to the normal switch working state, it will cause overcurrent. Therefore, during the startup process, the conduction time of the switch tube must be controlled and it must be slowly increased from zero. This is the work to be completed by the soft start circuit.

[0004] However, the existing emergency inverter switch generally lacks an independent power supply system. At the same time, if a power outage occurs during actual use, causing abnormal voltage and temperature of the electromagnetic coil, it is easy to cause damage to the emergency inverter switch, increasing costs.

[0005] Therefore, it is necessary to provide a low-cost emergency inverter opening device to solve the above technical problems. Summary of the invention

[0006] The present invention provides a low-cost emergency inverter switch opening device, which solves the problem that the emergency inverter switch opening lacking independent power supply will cause abnormal voltage and temperature of the electromagnetic coil after power failure, which may easily cause damage to the emergency inverter switch opening and increase costs.

[0007] In order to solve the above technical problems, the present invention provides a low-cost emergency inverter gate opening device comprising: a buffer base;

[0008] A shell, the shell is fixedly connected to the top of the buffer base, a mounting plate with a vent hole is installed near the middle of the inside of the shell, a power supply, a start switch, a common switch and a door lock switch are installed on the back of the mounting plate near one side, a control circuit, an oscillation circuit, a semiconductor switch and an inverter transformer are installed on the back of the mounting plate near the middle, and a voltage regulating circuit, a voltage collection, a current protection and a current conversion circuit are installed on the back of the mounting plate near the other side;

[0009] An output head, the output head is installed on one side of the shell near the bottom, a sealing cover is installed on the front of the shell by bolts, a sealing ring is fixedly connected to the back of the sealing cover near the outer surface, the power supply is a battery, the inverter transformer is a transformer system, the current protection is a current signal conversion device, the voltage acquisition is a voltage ratio conversion circuit, the oscillation circuit is a timing oscillation comparison controller, and the semiconductor switch is a semiconductor power switch device;

[0010] The output head and the conversion circuit are connected through lines. The power supply, start switch, common switch, door lock switch, control circuit, oscillation circuit, semiconductor switch, inverter transformer, voltage regulation circuit, voltage acquisition, current protection and conversion circuit are connected through lines. For specific connection direction and sequence, refer to Figure 3 The inverter transformer is not limited to high-frequency voltage and current conversion, but can also be low-frequency voltage and current conversion. The oscillation circuit converts the external voltage signal into an internal timing logic signal. The door lock switch, common switch, and start switch are externally controlled switch signals. They can be installed on the outside of the shell or on the mounting plate, depending on the specific needs. The mounting plate is provided with threaded holes to facilitate the installation of emergency inverter opening equipment.

[0011] Preferably, the current conversion circuit is a conversion system for converting AC voltage into DC voltage, the voltage regulation circuit is another voltage proportional conversion circuit, and the control circuit is a logic control circuit;

[0012] The system is composed of a diode network and a filter network, and can also be a network composed of other devices simulating diode characteristics.

[0013] Preferably, a filter plate is installed on the back of the sealing cover, a handle is fixedly connected to the front of the sealing cover, and two groups of air inlet holes are opened on the front of the sealing cover;

[0014] The positions of the air inlet and the filter plate correspond to each other, so that the air entering the shell can be filtered.

[0015] Preferably, a vent is provided on the back of the shell, and a mounting frame is installed on the back of the shell;

[0016] The positions of the mounting frame and the air vent correspond to each other.

[0017] Preferably, a plurality of cooling fans are installed inside the installation frame through a fixing frame, and a protective net is installed on the back of the installation frame;

[0018] The protective net can prevent debris or large dust particles from entering the interior of the housing.

[0019] Preferably, the buffer base comprises a bottom plate with mounting holes, and buffer rubbers are mounted on the top of the bottom plate near the four corners through fixing buckles;

[0020] Cushion rubber is a rubber material that has both support and cushioning effects.

[0021] Preferably, a plurality of mounting buckles are installed on the front of the mounting plate, and clamping holes are provided on both sides of the mounting buckles near the top, and hanging buckles are provided inside the mounting buckles, and the backs of the hanging buckles are fixedly connected to the fixing plate;

[0022] The fixing plate is connected to the housing of the equipment by bolts.

[0023] Preferably, a mounting groove is provided at the top of the hook, a support block is fixedly connected to the bottom of the inner wall of the mounting groove at the middle position, and movable openings are provided at the positions near the top on both sides of the hook;

[0024] Mounting slot position reference Figure 6 .

[0025] Preferably, support springs are installed on both sides of the support block through a fixed disk, a movable block is installed on the other end of the support spring through a fixed disk, a pressing block is fixedly connected to the top of the movable block, and a clamping bolt is fixedly connected to the opposite sides of the two movable blocks;

[0026] The latch bolt passes through the movable opening and is inserted into the inside of the latch hole, so that the hanging buckle can be buckled inside the mounting buckle.

[0027] Compared with the related art, the low-cost emergency inverter opening device provided by the present invention has the following beneficial effects:

[0028] The present invention provides a low-cost emergency inverter opening device. In order to reduce the damage probability of the emergency inverter opening device and reduce the equipment cost, the starting switch, the common switch, the door lock switch, the control circuit, the oscillation circuit, the voltage regulation circuit, the voltage collection, the current protection, the current conversion circuit, the inverter transformer, the semiconductor switch and the power supply are respectively installed on one side of the mounting plate in the shell by bolts, and the circuit is installed by the line. Figure 3The direction and sequence of the two parts can be connected, and the emergency inverter opening device can be centrally installed inside the shell for easy maintenance and management in the future. The mounting plate is installed by bolts for easy disassembly. At the same time, the shell is installed in the corresponding position through the buffer base to reduce the impact of vibration on the equipment inside the shell. Through the inverter opening device, the power supply can be used to supply power to the electromagnetic coil for emergency power supply, and the voltage of the electromagnetic coil power supply can be delayed to reduce the heat and power consumption of the electromagnetic coil during operation, thereby reducing the damage to the inverter caused by power outages, and also reducing the practical cost of emergency inverter opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic structural diagram of a first embodiment of a low-cost emergency inverter opening device provided by the present invention;

[0030] Figure 2 The present invention provides a structural schematic diagram of an inverter transformer;

[0031] Figure 3 A schematic diagram of the structure of a semiconductor switch is provided for the present invention;

[0032] Figure 4 A schematic diagram of the structure of a buffer rubber is provided for the present invention;

[0033] Figure 5 A schematic structural diagram of a second embodiment of a low-cost emergency inverter opening device provided by the present invention;

[0034] Figure 6 A structural schematic diagram of a support spring is provided for the present invention.

[0035] Numbers in the figure: 1. Buffer base, 101. Bottom plate, 102. Mounting hole, 103. Fixing buckle, 104. Buffer rubber, 2. Handle, 3. Air inlet, 4. Output head, 5. Shell, 6. Fixing plate, 7. Sealing cover, 8. Bolt, 9. Sealing ring, 10. Filter plate, 11. Start switch, 12. Common switch, 13. Door lock switch, 14. Control circuit, 15. Oscillation circuit, 16. Air vent, 17. Mounting plate, 18. Voltage regulating circuit, 19. Voltage acquisition, 20. Current protection, 21. Converter circuit, 22. Inverter transformer, 23. Semiconductor switch, 24. Power supply, 25. Cooling fan, 26. Installation frame, 27. Ventilation port, 28. Fixed frame, 29. Protective net, 30. Installation buckle, 31. Card hole, 32. Hanging buckle, 33. Fixed plate, 34. Press block, 35. Movable port, 36. Card bolt, 37. Movable block, 38. Support block, 39. Support spring, 40. Installation slot. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of a low-cost emergency inverter opening device provided by the present invention; Figure 2 The present invention provides a structural schematic diagram of an inverter transformer; Figure 3 A schematic diagram of the structure of a semiconductor switch is provided for the present invention; Figure 4 The present invention provides a schematic diagram of the structure of the buffer rubber. The low-cost emergency inverter gate opening device comprises: a buffer base 1;

[0038] A housing 5, wherein the housing 5 is fixedly connected to the top of the buffer base 1, a mounting plate 17 with a vent hole 16 is installed near the middle of the interior of the housing 5, a power supply 24, a start switch 11, a common switch 12 and a door lock switch 13 are installed on the back of the mounting plate 17 near one side, a control circuit 14, an oscillation circuit 15, a semiconductor switch 23 and an inverter transformer 22 are installed on the back of the mounting plate 17 near the middle, and a voltage regulating circuit 18, a voltage collection 19, a current protection 20 and a current conversion circuit 21 are installed on the back of the mounting plate 17 near the other side;

[0039] An output head 4, the output head 4 is installed on one side of the housing 5 near the bottom, a sealing cover 7 is installed on the front of the housing 5 by bolts 8, a sealing ring 9 is fixedly connected to the back of the sealing cover 7 near the outer surface, the power supply 24 is powered by a battery, the inverter transformer 22 is a transformer system, the current protection 20 is a current signal conversion device, the voltage acquisition 19 is a voltage ratio conversion circuit, the oscillation circuit 15 is a timing oscillation comparison controller, and the semiconductor switch 23 is a semiconductor power switch device;

[0040] The output head 4 and the conversion circuit 21 are connected through a line, and the power supply 24, the start switch 11, the common switch 12, the door lock switch 13, the control circuit 14, the oscillation circuit 15, the semiconductor switch 23, the inverter transformer 22, the voltage regulation circuit 18, the voltage collection 19, the current protection 20 and the conversion circuit 21 are connected through a line. For specific connection directions and sequences, refer to Figure 3 The inverter transformer 22 is not limited to high-frequency voltage and current conversion, but can also be low-frequency voltage and current conversion. The oscillation circuit 15 converts the external voltage signal into an internal timing logic signal. The door lock switch 13, the common switch 12, and the start switch 11 are externally controlled switch signals. They can be installed on the outside of the housing 5 or on the mounting plate 17, depending on the specific needs. The mounting plate 17 is provided with threaded holes to facilitate the installation of equipment in the emergency inverter opening.

[0041] The current conversion circuit 21 is a conversion system for converting AC voltage into DC voltage, the voltage regulation circuit 18 is another voltage ratio conversion circuit, and the control circuit 14 is a logic control circuit;

[0042] The system is composed of a diode network and a filter network, and may also be a network composed of other devices simulating diode characteristics. The control circuit 14 is used to start and stop the oscillation circuit 15 and control the oscillation timing of the oscillation circuit 15.

[0043] A filter plate 10 is installed on the back of the sealing cover 7, a handle 2 is fixedly connected to the front of the sealing cover 7, and two groups of air inlet holes 3 are opened on the front of the sealing cover 7;

[0044] The positions of the air inlet 3 and the filter plate 10 correspond to each other, and the air entering into the housing 5 can be filtered.

[0045] A vent 27 is provided on the back of the housing 5, and a mounting frame 26 is installed on the back of the housing 5;

[0046] The positions of the installation frame 26 and the air vent 27 correspond to each other, and the installation frame 26 is square.

[0047] A plurality of cooling fans 25 are installed inside the installation frame 26 via a fixing frame 28, and a protective net 29 is installed on the back of the installation frame 26;

[0048] The protective net 29 can prevent debris or dust with larger particles from entering the interior of the housing 5, and the heat dissipation fan 25 can discharge the high-temperature air inside the housing 5 to assist in heat dissipation.

[0049] The buffer base 1 comprises a bottom plate 101 with mounting holes 102, and buffer rubbers 104 are mounted on the top of the bottom plate 101 near the four corners through fixing buckles 103;

[0050] The buffer rubber 104 is a rubber material having supporting force and buffering effect, and the top of the buffer rubber 104 is connected to the bottom of the housing 5 through the fixing buckle 103 .

[0051] The working principle of the low-cost emergency inverter opening device provided by the present invention is as follows:

[0052] First, the start switch 11, the common switch 12, the door lock switch 13, the control circuit 14, the oscillation circuit 15, the voltage regulation circuit 18, the voltage collection 19, the current protection 20, the current conversion circuit 21, the inverter transformer 22, the semiconductor switch 23 and the power supply 24 are respectively installed on one side of the mounting plate 17 in the housing 5 by means of bolts 8, and the circuit is installed by means of lines. Figure 3The direction and sequence of the emergency inverter opening device can be centrally installed inside the housing 5 for easy maintenance and management, and the mounting plate 17 is installed by bolts 8 for easy disassembly. At the same time, the housing 5 is installed in the corresponding position through the buffer base 1, which can reduce the impact of vibration on the internal equipment of the housing 5. In actual use, the power supply 24 passes through the inverter transformer 22 and the semiconductor switch 23, the inverter transformer 22 transforms the pulse voltage and sends it to the converter circuit 21, the converter circuit 21 outputs the converted DC voltage, the oscillation circuit 15 generates a timing voltage signal and sends it to the semiconductor switch 23, the semiconductor switch 23 generates a pulse voltage and sends it to the inverter transformer 22 for transformation, and at the same time, the voltage acquisition 19 and the voltage regulation circuit 18 send the collected voltage signal to the oscillation circuit 15 to adjust the working timing of the oscillation circuit 15, thereby changing the output voltage, the door lock switch 13, the common switch 12, and the start switch 11 send the switch signal to the control circuit 14, and after receiving the external signal, the control circuit 14 starts the oscillation circuit 15 and controls the working timing of the oscillation circuit 15.

[0053] Compared with the related art, the low-cost emergency inverter opening device provided by the present invention has the following beneficial effects:

[0054] In order to reduce the damage probability of emergency inverter opening and reduce the equipment cost, the starting switch 11, the common switch 12, the door lock switch 13, the control circuit 14, the oscillation circuit 15, the voltage regulation circuit 18, the voltage collection 19, the current protection 20, the current conversion circuit 21, the inverter transformer 22, the semiconductor switch 23 and the power supply 24 are respectively installed on one side of the mounting plate 17 in the housing 5 by bolts 8, and the line is installed. Figure 3 The direction and sequence of the two parts can be connected, and the emergency inverter opening device can be centrally installed inside the shell 5 for easy maintenance and management in the future. The mounting plate 17 is installed by bolts 8 for easy disassembly. At the same time, the shell 5 is installed in the corresponding position through the buffer base 1, which can reduce the impact of vibration on the internal equipment of the shell 5. Through the inverter opening device, the power supply 24 can be used to supply power for emergency power supply to the electromagnetic coil, and the voltage of the electromagnetic coil power supply can be delayed to reduce the heat and power consumption of the electromagnetic coil during operation, thereby reducing the damage to the inverter caused by power outages, and also reducing the practical cost of emergency inverter opening.

[0055] Second embodiment

[0056] Please refer to Figure 5-Figure 6 , Figure 5 A schematic structural diagram of a second embodiment of a low-cost emergency inverter opening device provided by the present invention; Figure 6The present invention provides a structural schematic diagram of a support spring; based on the low-cost emergency inverter gate opening device provided by the first embodiment of the present application, the second embodiment of the present application proposes another low-cost emergency inverter gate opening device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0057] Specifically, the low-cost emergency inverter gate opening device provided in the second embodiment of the present application is different in that a plurality of mounting buckles 30 are installed on the front of the mounting plate 17, and clamping holes 31 are provided on both sides of the mounting buckles 30 near the top, and hanging buckles 32 are provided inside the mounting buckles 30, and the backs of the hanging buckles 32 are fixedly connected to the fixing plates 33;

[0058] The fixing plate 33 is connected to the housing of the device through bolts 8 , and the hanging buckle 32 is inserted into the interior of the mounting buckle 30 from the top of the mounting buckle 30 .

[0059] The top of the hook 32 is provided with a mounting groove 40, the bottom of the inner wall of the mounting groove 40 is fixedly connected with a support block 38 at the middle position, and both sides of the hook 32 are provided with movable openings 35 near the top;

[0060] The position of the mounting groove 40 is referenced Figure 6 The movable opening 35 is convenient for the bolt 36 to pass through and move.

[0061] Support springs 39 are installed on both sides of the support block 38 through the fixed plate 6, and the other end of the support spring 39 is installed with a movable block 37 through the fixed plate 6. The top of the movable block 37 is fixedly connected with a pressing block 34, and the opposite sides of the two movable blocks 37 are fixedly connected with a clamping bolt 36;

[0062] The latch bolt 36 passes through the movable opening 35 and is inserted into the inside of the latch hole 31 , so that the hook 32 can be buckled inside the mounting buckle 30 , and the pressing block 34 exposes the mounting groove 40 , which is convenient for manual pressing.

[0063] Compared with the related art, the low-cost emergency inverter opening device provided by the present invention has the following advantages:

[0064] Beneficial effects:

[0065] The cam 32 is then pulled upward to remove the device from the mounting plate 17 for inspection or maintenance. This structure reduces the difficulty of disassembling and assembling the emergency inverter opening device on the mounting plate 17, and facilitates disassembly and assembly during inspection and maintenance.

[0066] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A low-cost emergency inverter opening device, characterized in that: include: Cushioned base; A shell, the shell is fixedly connected to the top of the buffer base, a mounting plate with a vent hole is installed near the middle of the inside of the shell, a power supply, a start switch, a common switch and a door lock switch are installed on the back of the mounting plate near one side, a control circuit, an oscillation circuit, a semiconductor switch and an inverter transformer are installed on the back of the mounting plate near the middle, and a voltage regulating circuit, a voltage collection, a current protection and a current conversion circuit are installed on the back of the mounting plate near the other side; An output head is installed on one side of the shell near the bottom, a sealing cover is installed on the front of the shell by bolts, and a sealing ring is fixedly connected to the back of the sealing cover near the outer surface, the power supply is powered by a battery, the inverter transformer is a transformer system, the current protection is a current signal conversion device, the voltage acquisition is a voltage ratio conversion circuit, the oscillation circuit is a timing oscillation comparison controller, and the semiconductor switch is a semiconductor power switch device.

2. The low-cost emergency inverter opening device according to claim 1, characterized in that: The current conversion circuit is a conversion system for converting AC voltage into DC voltage, the voltage regulation circuit is another voltage proportional conversion circuit, and the control circuit is a logic control circuit.

3. The low-cost emergency inverter opening device according to claim 1, characterized in that: A filter plate is installed on the back of the sealing cover, a handle is fixedly connected to the front of the sealing cover, and two groups of air inlet holes are opened on the front of the sealing cover.

4. The low-cost emergency inverter opening device according to claim 1, characterized in that: A vent is provided on the back of the shell, and a mounting frame is installed on the back of the shell.

5. The low-cost emergency inverter opening device according to claim 4, characterized in that: A plurality of heat dissipation fans are installed inside the installation frame through a fixing frame, and a protective net is installed on the back of the installation frame.

6. The low-cost emergency inverter opening device according to claim 1, characterized in that: The buffer base comprises a bottom plate with mounting holes, and buffer rubbers are mounted on the top of the bottom plate near the four corners through fixing buckles.

7. The low-cost emergency inverter opening device according to claim 1, characterized in that: A plurality of mounting buckles are installed on the front side of the mounting plate, and clamping holes are provided on both sides of the mounting buckles near the top. Hanging buckles are provided inside the mounting buckles, and the back sides of the hanging buckles are fixedly connected to a fixing plate.

8. The low-cost emergency inverter opening device according to claim 7, characterized in that: The top of the hook is provided with a mounting groove, the bottom of the inner wall of the mounting groove is fixedly connected with a support block at a middle position, and movable openings are provided at positions near the top on both sides of the hook.

9. The low-cost emergency inverter opening device according to claim 8, characterized in that: Support springs are installed on both sides of the support block through a fixed plate, and a movable block is installed on the other end of the support spring through a fixed plate. The top of the movable block is fixedly connected with a pressing block, and the opposite sides of the two movable blocks are fixedly connected with a clamping bolt.

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