Novel electric energy purifier and electric power safety protection device

Abstract

The invention discloses a novel electric energy purifier for electric power safety. The novel electric energy purifier comprises a transient circuit protection unit and a steady-state circuit filtering unit. The transient circuit protection unit comprises at least one shell, the shell is provided with a first wiring port and a second wiring port, and the at least one shell forms a cavity through a clamping piece. The first wiring terminal, the second wiring terminal, the switch assembly, the access assembly, the voltage stabilization assembly, the trigger protection assembly and the transient protection assembly are all installed in the cavity. The trigger protection assembly and the transient protection assembly can enable the switch assembly to be separated from the access assembly, when a load exceeds a preset safety range or short circuit occurs, the trigger protection assembly enables the switch assembly to be separated from the access assembly, and when transient high power is too high, the transient protection assembly enables the switch assembly to be separated from the access assembly. Therefore, the safety performance is improved.

Description

Technical Field

[0001] The invention relates to power protection technology, and in particular to a novel electric energy purifier and a power safety protection device. Background Art

[0002] Power purifiers, also known as power purifiers, are mainly used to improve power supply quality and protect electronic devices from power fluctuations. Its working principles mainly include:

[0003] The power purifier is equipped with a filter circuit composed of capacitors, inductors and other components, which can filter out high-frequency noise and harmonic interference in the power grid and reduce the adverse effects on electronic equipment. When the grid voltage fluctuates, such as overvoltage or undervoltage, the built-in automatic voltage stabilization circuit can stabilize the output voltage within a safe range to ensure that the connected equipment can operate normally. Or when it is detected that the load exceeds the preset safety range or a short circuit occurs, the circuit can be disconnected immediately to avoid causing greater damage.

[0004] Among them, the existing power purifier is generally composed of capacitors (C) and inductors (L). These devices have a relatively low withstand voltage and a small flow rate. If electromagnetic pulses pass directly, it is likely to cause damage to the filter components. Therefore, the circuit suppression for instantaneous high power is poor, and there are still safety hazards. Summary of the invention

[0005] In summary, the present invention proposes a novel electric energy purifier and electric power safety protection device, which first discharges current and limits voltage through a transient protection unit, discharges most of the current and energy through a short circuit, and then enters a steady-state circuit filter unit, through which high-frequency components are filtered out, so that the protected equipment is effectively protected and safety is increased.

[0006] The technical solution of the present invention is achieved in this way:

[0007] An electric power safety protection device, characterized in that it comprises a transient circuit protection unit and a steady-state circuit filtering unit, wherein:

[0008] The transient circuit protection unit comprises at least one housing, on which a first wiring port and a second wiring port are arranged, at least one housing forms a cavity through a snap-fitting member, and a first wiring terminal, a second wiring terminal, a switch component, a passage component, a voltage stabilizing component, a trigger protection component and a transient protection component are all installed in the cavity, and the first wiring terminal and the second wiring terminal form a loop through the switch component and the passage component, wherein:

[0009] The trigger protection component and the transient protection component can both separate the switch component from the path component. When the load exceeds a preset safety range or a short circuit occurs, the trigger protection component separates the switch component from the path component. When the instantaneous high power is too high, the transient protection component separates the switch component from the path component.

[0010] The steady-state circuit filter unit is composed of a differential mode capacitor, a common mode capacitor stage and a common mode inductor.

[0011] As a preferred embodiment of the present invention, the switch assembly comprises a switch arm, the switch arm is rotatably connected along the first rotating shaft, and a torsion spring is arranged at the rotating position thereof;

[0012] The passage assembly is composed of two completely identical conductive plates, which are respectively installed on both sides of the switch arm, wherein the first connecting terminal and the second connecting terminal respectively form a circuit with one of the conductive plates, and a locking cavity is provided at one end of the conductive plate close to the switch arm, and the locking cavity constitutes a switch switch. When the switch arm is located in the switch switch, the circuit is connected; when the switch arm is separated from the switch switch, the circuit is disconnected.

[0013] As a preferred embodiment of the present invention, a locking block is provided at the front end of the switch arm, and the locking block is in the shape of a convex block, which is used to ensure that the switch arm is continuously located in the switch switch when not affected by external forces.

[0014] As a preferred embodiment of the present invention, the switch arm is also fixedly connected to a first push block and a second push block, wherein:

[0015] The trigger protection component separates the switch component from the passage component through the first push block, and the transient protection component separates the switch component from the passage component through the second push block.

[0016] As a preferred embodiment of the present invention, the trigger protection assembly includes a rocker and a guide rail groove, a spring sheet is installed at the bottom of one end of the rocker, and the guide rail groove is fixedly connected to the housing.

[0017] Among them, a metal rod is slidably connected to the guide rail groove, one end of the metal rod is installed on the guide rail groove, and the other end is installed on the first push block. The rocker is provided with a slot just above one end of the spring sheet, and a trigger component is fixedly connected to the slot.

[0018] As a preferred embodiment of the present invention, the trigger component includes a first coil, the first coil is connected to the first terminal, the trigger component also includes a valve body and a first sliding rod, the first sliding rod is located inside the first coil,

[0019] A first return spring is arranged between the first sliding rod and the valve body, a first limiting member is arranged at one end of the first sliding rod, the first limiting member cooperates with the second limiting member, and the second limiting member is fixedly installed on the top of the first trigger rod.

[0020] As a preferred embodiment of the present invention, a wedge-shaped clamp is provided at the bottom of the first limiting member, and a groove disk is provided at the top of the second limiting member, and the wedge-shaped clamp and the groove disk make the first limiting member and the second limiting member cooperate with each other, and a first pre-tensioning spring is provided between the first limiting member and the second limiting member, and the first pre-tensioning spring is in a compressed state.

[0021] As a preferred embodiment of the present invention, levers are provided on both sides of the second limiting member, and a guide groove is provided on the outer wall of the valve body, and the guide groove is in a stepped shape, wherein:

[0022] When the load exceeds a preset safety range or a short circuit occurs, the first sliding rod drives the first trigger rod to move, causing the lever on the second limiting member to slide from one end of the guide groove to the other end, and the lever drives the second limiting member and the first trigger rod to deflect, causing the first limiting member to separate from the second limiting member.

[0023] As a preferred embodiment of the present invention, the transient protection component includes a second coil and a valve tube, the valve tube is located inside the second coil, a first fixing member and a second fixing member are fixedly installed inside the valve tube, a second trigger rod is slidably connected to the first fixing member, a second preload spring is arranged between the second trigger rod and the first fixing member, and the second preload spring is in a compressed state.

[0024] As a preferred embodiment of the present invention, one end of the second trigger rod is fixedly connected to a first magnetic block, and one side of the first magnetic block is provided with a second magnetic block that attracts the first magnetic block.

[0025] The first magnetic block and the second magnetic block are both located in the chamber of the second fixing member, and a second sliding rod is also disposed in the chamber of the second fixing member.

[0026] When the instantaneous high power is too high, the second sliding rod moves toward the second magnetic block, causing the chamber temperature in the second fixing member to rise instantly. The second trigger rod moves under the action of the second preload spring, and under the action of the second push block, pushes the switch arm to separate from the switch circuit breaker.

[0027] A novel electric energy purifier is characterized in that the novel electric energy purifier includes a capacitor, an inductor, a resistor, a varistor and a thermal circuit breaker.

[0028] The novel electric energy purifier and electric power safety protection device of the present invention have the following beneficial effects:

[0029] The present invention first discharges current and limits voltage through a transient protection unit, discharges most of the current and energy through a short circuit, and then enters a steady-state circuit filter unit, through which high-frequency components are filtered out. This allows rapid response and processing of transient high voltage and high current, protects the protected equipment from damage caused by transient events such as lightning strikes and surges, and improves safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the electric power safety protection device of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a transient circuit protection unit of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the transient circuit protection unit of the present invention from another angle;

[0033] Figure 4 It is a schematic diagram of the installation of the switch assembly and the passage assembly of the present invention;

[0034] Figure 5 for Figure 4 Explosion separation diagram of

[0035] Figure 6 It is a schematic diagram of the structure of the switch assembly of the present invention;

[0036] Figure 7 It is a structural schematic diagram of a transient circuit protection unit of the present invention;

[0037] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0038] Fig. 9 for Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0039] Fig.10 It is a structural schematic diagram of the trigger component of the present invention;

[0040] Fig.11 It is a partial cross-sectional view of the trigger component of the present invention;

[0041] Fig.12 This is an exploded separation diagram of the trigger component of the present invention;

[0042] Fig.13 It is a schematic diagram of the structure of the transient protection component of the present invention;

[0043] Fig.14 is a partial cross-sectional view of a transient protection assembly of the present invention;

[0044] Fig.15 It is a circuit diagram of the steady-state circuit filter unit of the present invention. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0046] This embodiment discloses a novel electric energy purifier, which includes a capacitor, an inductor, a resistor, a varistor, and a thermal circuit breaker.

[0047] This embodiment also discloses a power safety protection device, which is applied to a new type of electric energy purifier.

[0048] Reference Figure 1 As shown, the power safety protection device 100 includes a transient circuit protection unit 10 and a steady-state circuit filter unit 20. First, the transient protection unit 10 performs current discharge and voltage limiting, and most of the current and energy are short-circuited and discharged, and then enters the steady-state circuit filter unit 20, and the high-frequency components are filtered out by the steady-state circuit filter unit 20, so that the protected equipment is effectively protected and the safety is increased.

[0049] Reference Figures 2 to 3 As shown, the transient circuit protection unit 10 includes a housing 11, and the housing 11 is provided with a first wiring port 101 and a second wiring port 102. The two housings 11 form a cavity through a snap-fitting member 103, and the first wiring terminal 12, the second wiring terminal 13, the switch assembly 14, the passage assembly 15, the voltage stabilizing assembly 16, the trigger protection assembly 17 and the transient protection assembly 18 are all installed in the cavity. The first wiring terminal 12 and the second wiring terminal 13 form a loop through the switch assembly 14 and the passage assembly 15.

[0050] Reference Figures 4 to 6 As shown, the switch assembly 14 includes a switch arm 141, which is rotatably connected along a first rotating shaft 142, and a torsion spring 143 is provided at the rotating position. A fixing rod 144 is provided above the switch arm 141, the fixing rod 144 is fixedly connected to the housing 11, and a tension spring 145 is provided between the fixing rod 144 and the switch arm 141.

[0051] The passage assembly 15 is composed of two identical conductive plates 151, which are respectively installed on both sides of the switch arm 141. The first connection terminal 12 and the second connection terminal 13 are respectively connected to one of the conductive plates 151. A clamping cavity 152 is provided at one end of the conductive plate 151 close to the switch arm 141.

[0052] Specifically, the two engaging cavities 152 form a switch circuit breaker, and the switch arm 141 is centered on the first rotating shaft 142. Figure 4The switch arm 141 is rotated in the F2 direction to be located in the switch or to be separated from the switch. When the switch arm 141 is located in the switch, the circuit is turned on; when the switch arm 141 is separated from the switch, the circuit is disconnected. A locking block 141A is provided at the front end of the switch arm 141. The locking block 141A is in the shape of a convex block and is used to ensure that the switch arm 141 can be continuously located in the switch without being affected by external forces.

[0053] Furthermore, due to the unstable power supply of the mains, the instantaneous voltage drop when the high-power electrical appliances are started, etc., the voltage passing through the transient circuit protection unit 100 is not stable. A voltage stabilizing component 16 is provided below the path component 15, and a conductive plate 151 connected to the first wiring terminal 12 and the second wiring terminal 13 respectively forms a loop through the voltage stabilizing component 16. The voltage stabilizing component 16 is equivalent to a variable resistor, which absorbs excess voltage by turning on the crystal chip inside itself, thereby maintaining the stability of the output voltage.

[0054] In this embodiment, both the trigger protection component 17 and the transient protection component 18 can separate the switch arm 141 from the switch, that is, the circuit is disconnected. When the load exceeds the preset safety range or a short circuit occurs, the trigger protection component 17 separates the switch arm 141 from the switch; when the instantaneous high power is too high, the transient protection component 18 separates the switch arm 141 from the switch, thereby increasing safety. Among them, the switch arm 141 is also fixedly connected with a first push block 146 and a second push block 149. The trigger protection component 17 separates the switch arm 141 from the switch through the first push block 146, and the transient protection component 18 separates the switch arm 141 from the switch through the second push block 149.

[0055] Furthermore, the switch assembly 14 further includes a second rotating shaft 147, and a reset arm 148 is rotatably connected to the second rotating shaft 147. When the switch arm 141 is separated from the switch switch, the reset arm 148 rotates along the second rotating shaft 147 as the center. Figure 4 The switch arm 141 is rotated in the direction of F2 to push the switch arm 141 back into the switch circuit to achieve circuit conduction.

[0056] The specific structures of the trigger protection component 17 and the transient protection component 18 are further described below. Figures 7 to 9 As shown, the trigger protection assembly 17 includes a rocker 171 and a guide groove 173, and a spring sheet 172 is installed at the bottom of one end of the rocker 171. The guide groove 173 is fixedly connected to the housing 11, wherein a metal rod 174 is slidably connected to the guide groove 173. One end of the metal rod 174 is installed on the guide groove 173, and the other end is installed and connected to the first push block 146. There is a slot 175 just above one end of the rocker 171 where the spring sheet 172 is installed, and a trigger component 176 is fixedly connected to the slot 175.

[0057] Specifically, when the load exceeds a preset safety range or a short circuit occurs, the trigger component 176 pushes one end of the rocker 171 downward, and the other end of the rocker 171 pushes the metal rod 174 to move upward along the guide groove 173, thereby driving the first push block 146 to separate the switch arm 141 from the switch circuit breaker.

[0058] Furthermore, if Figures 10 to 12 As shown, the trigger component 176 includes a first coil 176A, and the first coil 176A is connected to the first terminal 12. The trigger component 176 also includes a valve body 176B and a first sliding rod 176C, and the first sliding rod 176C is located inside the first coil 176A. When the circuit is turned on, the first sliding rod 176C is affected by the first coil 176A and moves along the valve body 176B toward Fig.11 Move in the direction of F3. A first return spring 176E is provided between the first sliding rod 176C and the valve body 176B, which is used to reset the first sliding rod 176C when it moves. A first limiting member 176F is provided at one end of the first sliding rod 176C, and the first limiting member 176F cooperates with the second limiting member 176I, and the second limiting member 176I is fixedly installed on the top of the first trigger rod 176D. Among them, a wedge-shaped clamping member 176G is provided at the bottom of the first limiting member 176F, and a groove plate 176K is provided at the top of the second limiting member 176I. The first limiting member 176F cooperates with the second limiting member 176I through the wedge-shaped clamping member 176G and the groove plate 176K. And a first pre-tightening spring 176H is provided between the first limiting member 176F and the second limiting member 176I, and the first pre-tightening spring 176H is in a compressed state. The second limiting member 176I is provided with levers 176J on both sides, and the outer wall of the valve body 176B is provided with guide grooves 176L, which are in a stepped shape. The levers 176J are located in the guide grooves 176L and slide along the guide grooves 176L.

[0059] Specifically, the first sliding rod 176C is influenced by the first coil 176A and moves along the valve body 176B toward the Fig.11 The first sliding rod 176C also drives the first trigger rod 176D to move through the cooperation of the first limiting member 176F and the second limiting member 176I.

[0060] When the load exceeds the preset safety range or a short circuit occurs, the first sliding rod 176C drives the first trigger rod 176D to move, so that the lever 176J on the second limiting member 176I slides from one end of the guide slot 176L to the other end. At this time, under the action of the guide slot 176L, the lever 176J drives the second limiting member 176I and the first trigger rod 176D to deflect, so that the first limiting member 176F is separated from the second limiting member 176I. At this time, under the action of the first preload spring 176H, the first trigger rod 176D is pushed to move further downward, and one end of the rocker 171 is pressed downward, so that the circuit is disconnected.

[0061] Reference Figure 13 to Figure 14 As shown, the transient protection component 18 includes a second coil 181 and a valve tube 182, and the valve tube 182 is located inside the second coil 181. A first fixing member 184 and a second fixing member 187 are fixedly installed inside the valve tube 182, and a second trigger rod 183 is slidably connected to the first fixing member 184. A second preload spring 186 is arranged between the second trigger rod 183 and the first fixing member 184, and the second preload spring 186 is in a compressed state. A first magnetic block 185 is fixedly connected to one end of the second trigger rod 183, and a second magnetic block 188 that attracts each other is arranged on one side of the first magnetic block 185. Among them, the first magnetic block 185 and the second magnetic block 188 are both located in the chamber of the second fixing member 187, and a second sliding rod 189 is also arranged in the chamber of the second fixing member 187. The second sliding rod 189 is in the chamber of the second fixing member 187, along Fig.14 Move in the direction of F4.

[0062] Specifically, the second coil 181 is connected to the second terminal 13, and the second sliding rod 189 is affected by the second coil 181 and slides in the chamber of the second fixing member 187. When the instantaneous high power is too high, the second sliding rod 189 quickly moves toward the direction close to the second magnetic block 188, causing the chamber temperature in the second fixing member 187 to rise instantly. When the temperature rises, the first magnetic block 185 and the second magnetic block 188 are temporarily demagnetized, causing the second trigger rod 183 to move under the action of the second preload spring 186. In addition, under the action of the second push block 149, the second trigger rod 183 pushes the switch arm 141 to separate from the switch switch, thereby disconnecting the circuit.

[0063] In this embodiment, the steady-state circuit filter unit 20 is further elaborated. The steady-state circuit filter unit 20 is composed of a differential mode capacitor, a common mode capacitor and a common mode inductor. The differential mode capacitor is usually connected between the live wire and the neutral wire to filter out the differential mode noise; the common mode capacitor is respectively connected between the live wire and the ground wire, and between the neutral wire and the ground wire to filter out the common mode noise. The common mode inductor is used to suppress the common mode noise, and has little effect on the differential mode current. The common mode inductor is usually composed of two coils wound on the same magnetic core, and the live wire and the neutral wire pass through the two coils respectively. The magnetic field generated by the common mode current in the two coils is in the same direction, thereby enhancing the inductance effect and suppressing the common mode noise. The magnetic fields generated by the differential mode current in the two coils are in opposite directions and cancel each other out, so they have little effect on the differential mode current.

[0064] Reference Fig.15 As shown in the figure, inductor L1 represents common mode inductor, which is composed of two independent coils with the same number of turns, opposite winding directions, and on the same magnetic ring. When inductor L1 is in working state, due to the opposite winding directions of the two coils, under the action of one input and one output current, magnetic flux with the same direction is formed, which is superimposed on each other, so that the ability to suppress common mode interference is enhanced, and the common mode capacitor C Y Complete the suppression of interference between the line and the ground. L2 is a differential mode inductor, which is composed of two symmetrical coils with the same winding direction. It is mainly used to suppress differential mode noise when the current is large, and cooperates with differential mode capacitor C X Complete the suppression of interference between lines.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric power safety protection device, characterized in that: It includes a transient circuit protection unit and a steady-state circuit filtering unit, wherein: The transient circuit protection unit comprises at least one housing, on which a first wiring port and a second wiring port are arranged, at least one housing forms a cavity through a snap-fitting member, and a first wiring terminal, a second wiring terminal, a switch component, a passage component, a voltage stabilizing component, a trigger protection component and a transient protection component are all installed in the cavity, and the first wiring terminal and the second wiring terminal form a loop through the switch component and the passage component, wherein: The trigger protection component and the transient protection component can both separate the switch component from the path component. When the load exceeds a preset safety range or a short circuit occurs, the trigger protection component separates the switch component from the path component. When the instantaneous high power is too high, the transient protection component separates the switch component from the path component. The steady-state circuit filter unit is composed of a differential mode capacitor, a common mode capacitor stage and a common mode inductor.

2. The power safety protection device according to claim 1, characterized in that: The switch assembly comprises a switch arm, the switch arm is rotatably connected along a first rotating shaft, and a torsion spring is arranged at the rotating position thereof; The passage assembly is composed of two identical conductive plates, which are respectively installed on both sides of the switch arm, wherein the first connection terminal and the second connection terminal are respectively connected to one of the conductive plates to form a circuit, and a clamping cavity is provided at one end of the conductive plate close to the switch arm, and the clamping cavity constitutes a switch switch. When the switch arm is located in the switch switch, the circuit is connected; when the switch arm is separated from the switch switch, the circuit is disconnected. The front end of the switch arm is provided with a locking block, which is in the shape of a convex block and is used to ensure that the switch arm is continuously located in the switch gate when not affected by external forces.

3. The power safety protection device according to claim 1, characterized in that: The switch arm is also fixedly connected with a first push block and a second push block, wherein: The trigger protection component separates the switch component from the passage component through the first push block, and the transient protection component separates the switch component from the passage component through the second push block.

4. The power safety protection device according to claim 1, characterized in that: The trigger protection assembly includes a rocker and a guide rail groove, a spring sheet is installed at the bottom of one end of the rocker, and the guide rail groove is fixedly connected to the housing. Among them, a metal rod is slidably connected to the guide rail groove, one end of the metal rod is installed on the guide rail groove, and the other end is installed on the first push block. The rocker is provided with a slot just above one end of the spring sheet, and a trigger component is fixedly connected to the slot.

5. The power safety protection device according to claim 4, characterized in that: The trigger component includes a first coil connected to the first terminal, and the trigger component also includes a valve body and a first sliding rod, and the first sliding rod is located inside the first coil. A first return spring is arranged between the first sliding rod and the valve body, a first limiting member is arranged at one end of the first sliding rod, the first limiting member cooperates with the second limiting member, and the second limiting member is fixedly installed on the top of the first trigger rod.

6. The power safety protection device according to claim 5, characterized in that: A wedge-shaped clamp is provided at the bottom of the first limiting member, and a groove disk is provided at the top of the second limiting member. The wedge-shaped clamp and the groove disk make the first limiting member and the second limiting member cooperate with each other, and a first preload spring is provided between the first limiting member and the second limiting member, and the first preload spring is in a compressed state.

7. The power safety protection device according to claim 6, characterized in that: The second limiting member is provided with levers on both sides, and the outer wall of the valve body is provided with guide grooves, which are in a stepped shape, wherein: When the load exceeds a preset safety range or a short circuit occurs, the first sliding rod drives the first trigger rod to move, causing the lever on the second limiting member to slide from one end of the guide groove to the other end, and the lever drives the second limiting member and the first trigger rod to deflect, causing the first limiting member to separate from the second limiting member.

8. The power safety protection device according to claim 1 or 7, characterized in that: The transient protection component includes a second coil and a valve tube, the valve tube is located inside the second coil, a first fixing member and a second fixing member are fixedly installed inside the valve tube, a second trigger rod is slidably connected to the first fixing member, a second preload spring is arranged between the second trigger rod and the first fixing member, and the second preload spring is in a compressed state.

9. The power safety protection device according to claim 8, characterized in that: One end of the second trigger rod is fixedly connected to a first magnetic block, and one side of the first magnetic block is provided with a second magnetic block that attracts the first magnetic block. The first magnetic block and the second magnetic block are both located in the chamber of the second fixing member, and a second sliding rod is also disposed in the chamber of the second fixing member. When the instantaneous high power is too high, the second sliding rod moves toward the second magnetic block, causing the chamber temperature in the second fixing member to rise instantly. The second trigger rod moves under the action of the second preload spring, and under the action of the second push block, pushes the switch arm to separate from the switch circuit breaker.

10. A new type of electric energy purifier, characterized in that: These include capacitors, inductors, resistors, varistors, and thermal breakers.

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