An intelligent display power equipment protection device

Abstract

The present invention discloses an intelligent display power equipment protection device, and relates to the technical field of circuit protection. The present invention can more accurately reflect the current overload situation and monitor the temperature change of the wire in real time through the temperature and pressure linkage mechanism; the potentiometer controls the start and stop of the electromagnet and the instantaneous high current protection, and the dual protection mechanism ensures that the circuit can be effectively protected under different conditions, which can not only cut off the power when the temperature is too high, but also respond quickly when the instantaneous overcurrent occurs, greatly improving the safety of the circuit; through the frequency monitoring conductor and the power supply applied at both ends of the conductor, the frequency change of the current in the circuit can be monitored in real time and adjusted. This design not only protects the circuit components, but also extends the service life of the equipment and improves the stability and reliability of the circuit system.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit protection, and in particular to an intelligent display power equipment protection device. Background Art

[0002] Traditional current overload protection technology mainly relies on simple current circuit breakers, which will quickly cut off the circuit when the current is overloaded. However, this technology has difficulty in accurately measuring temperature changes and their impact on the circuit, and cannot effectively monitor the frequency of the current. In addition, traditional current overload protection will only cut off the circuit when encountering large currents. When the ambient temperature is too high, the resistance in the circuit will also increase, which will cause the heat generated by the wire to increase, thereby increasing the load on the wire, which is easy to cause the wire to overheat and burn, but the current power circuit breaker will not work. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: an intelligent display power equipment protection device, comprising an iron core, a hollow wire is arranged around the outer surface of the iron core, the interior of the hollow wire is hollow, and a pressure conductive piston tube and a frequency monitoring tube are fixedly installed at both ends of the hollow wire respectively, wherein the frequency monitoring tube is blocked and sealed with an insulating layer, and the insulating layer is filled with a frequency monitoring conductor, and the two ends of the frequency monitoring conductor are led out to the outside of the frequency monitoring tube through wires, and the wire and the frequency monitoring tube are insulated; wherein a pressure piston is slidingly sealed on the inner wall of the pressure conductive piston tube, and a pressure rack is fixedly installed on the pressure piston, and the pressure rack drives the pointer to rotate through the pressure gear and the pointer transmission shaft.

[0004] Preferably, a section of the pressure conductive piston tube is fixedly installed with a pressure rack support plate, wherein the pressure gear is rotatably installed on the pressure rack support plate, the pressure gear is meshed with the pressure rack, and the pressure gear and the pointer are fixed by a pointer transmission shaft, wherein a dial is provided on the outer side of the pointer transmission shaft, and the dial and the iron core are both fixed on a support platform, and the support platform is fixed on the base.

[0005] Preferably, a first wiring terminal and a second wiring terminal are respectively fixed on the outer surfaces of the pressure conductive piston tube and the frequency monitoring tube for installing the wires, wherein the scale is provided on the scale plate.

[0006] Preferably, two parallel guide slide bars are fixedly installed on the iron core, and magnetic plates are slidably installed on the two guide slide bars. The magnetic plates cooperate with the iron core magnetically, and an electromagnet is embedded inside the iron core. The electromagnet cooperates with the magnetic plate magnetically. A pull line is also arranged around the guide slide bar, and the two ends of the pull line are respectively fixed to the top of the guide slide bar and the upper surface of the magnetic plate, and a moving rack is fixedly installed on the magnetic plate.

[0007] Preferably, a moving rack support plate and two parallel sliding column beams are fixedly mounted on the base, a bottom separation frame and a top separation frame are slidably mounted on the two sliding column beams, and conductive contacts that can contact and conduct electricity with each other are arranged on the opposite surfaces of the bottom separation frame and the top separation frame.

[0008] Preferably, power-off springs are provided on both sides of the opposite surfaces of the bottom separation frame and the top separation frame, the power-off springs are arranged around the corresponding sliding column beams, and the two ends of the power-off springs are fixed to the bottom separation frame and the top separation frame.

[0009] Preferably, a sliding block is fixedly installed on the moving rack support plate, a limit frame is slidably installed on the sliding block to support the slide rod, a limit frame is fixedly installed on the limit frame support slide rod, the limit frame is used to limit the bottom separation frame and the top separation frame, a trigger rack is fixedly installed on the limit frame, and the trigger rack is slidably installed on the moving rack support plate.

[0010] Preferably, two large plate gears and small plate gears that are stacked and fixed are also rotatably installed on the moving rack support plate, wherein the large plate gear is meshed with the trigger rack, and the small plate gear is meshed with the moving rack, and a rotating swing plate and a limiting one-way swing plate are also rotatably installed on the moving rack support plate, wherein the rotating swing plate is fixed to the large plate gear or the small plate gear through a rotating shaft, and the limiting one-way swing plate is in contact with the rotating swing plate.

[0011] Preferably, a circular groove is also provided on the side of the moving rack support plate, in which a magnetic rod is inserted, and the circumferential surface of the magnetic rod is in contact with and cooperates with the limiting one-way swing plate to limit the rotation direction of the limiting one-way swing plate, wherein the magnetic rod is magnetically cooperated with the moving rack support plate.

[0012] Preferably, swing arm links are movably installed on the bottom separation frame and the top separation frame, and the opposite ends of the two swing arm links are movably connected to one end of the reset rod, wherein the circumferential surfaces of the magnetic rod and the reset rod are slidably matched with the outer shell, and the outer shell is fixed on the base. A reinforcement frame is also provided above the base, and the reinforcement frame is fixed on the inner wall of the outer shell. The reinforcement frame is used to support the second terminal.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can more accurately reflect the current overload situation and monitor the temperature change of the wire in real time through the temperature and pressure linkage mechanism; (2) The present invention controls the start and stop of the electromagnet and the instantaneous high current protection through a potentiometer. The dual protection mechanism ensures that the circuit can be effectively protected under different conditions. It can not only cut off the power when the temperature is too high, but also respond quickly when the instantaneous overcurrent occurs, which greatly improves the safety of the circuit; (3) The present invention can monitor the frequency change of the current in the circuit in real time and adjust it through the frequency monitoring conductor and the power applied to its two ends. This design not only protects the circuit components, but also extends the service life of the equipment and improves the stability and reliability of the circuit system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the shell structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] Figure 4 It is a schematic diagram of the structure of the pressure conductive piston tube of the present invention.

[0018] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point B in the middle.

[0019] Figure 6 It is a structural schematic diagram of the rotating swing plate of the present invention.

[0020] Figure 7 It is a schematic diagram of the insulating layer structure of the present invention.

[0021] Figure 8 It is a schematic diagram of the limit frame structure of the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the small plate gear of the present invention.

[0023] In the figure: 101-base; 102-support platform; 103-reinforcement frame; 104-iron core; 105-dial; 106-pointer; 107-pointer transmission shaft; 108-pressure rack; 109-pressure rack support plate; 110-pressure gear; 111-pressure conductive piston tube; 112-pressure piston; 113-hollow wire; 114-frequency monitoring tube; 115-insulating layer; 116-frequency monitoring conductor; 117-guide slide rod; 118-pull line; 119-magnetic plate; 120-movement rack; 121- Motion rack support plate; 122-magnetic rod; 123-limiting one-way swing plate; 124-rotating swing plate; 125-first wiring terminal; 126-second wiring terminal; 127-limiting frame supporting slide rod; 128-sliding block; 129-limiting frame; 130-large disk gear; 131-trigger rack; 132-sliding column beam; 133-power-off spring; 134-bottom separation frame; 135-top separation frame; 136-conductive contact; 137-swing arm connecting rod; 138-reset pull rod; 139-small disk gear; 2-housing. DETAILED DESCRIPTION

[0024] Combine the following Figure 1-Figure 9 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0025] The present invention provides an intelligent display power equipment protection device, comprising an iron core 104, a hollow wire 113 is arranged around the outer surface of the iron core 104, the interior of the hollow wire 113 is hollow, and a pressure conductive piston tube 111 and a frequency monitoring tube 114 are fixedly installed at both ends of the hollow wire 113, wherein the frequency monitoring tube 114 is blocked and sealed with an insulating layer 115, and the insulating layer 115 is filled with a frequency monitoring conductor 116, and the two ends of the frequency monitoring conductor 116 are led out to the outside of the frequency monitoring tube 114 through wires, and the wire and the frequency monitoring tube 114 are insulated; wherein a pressure piston 112 is slidingly sealed on the inner wall of the pressure conductive piston tube 111, and a pressure rack 108 is fixedly installed on the pressure piston 112, and the pressure rack 108 drives the pointer 106 to rotate through a pressure gear 110 and a pointer transmission shaft 107. A section of the pressure conductive piston tube 111 is fixedly mounted with a pressure rack support plate 109, wherein the pressure gear 110 is rotatably mounted on the pressure rack support plate 109, the pressure gear 110 is meshed with the pressure rack 108, the pressure gear 110 and the pointer 106 are fixed by a pointer transmission shaft 107, wherein the outer side of the pointer transmission shaft 107 is sleeved with a dial 105, the dial 105 and the iron core 104 are both fixed on the support platform 102, and the support platform 102 is fixed on the base 101. The outer surfaces of the pressure conductive piston tube 111 and the frequency monitoring tube 114 are respectively fixed with a first wiring terminal 125 and a second wiring terminal 126 for installing wires, wherein the dial 105 is provided with a scale. Two parallel guide slide bars 117 are fixedly mounted on the iron core 104, and magnetic plates 119 are slidably mounted on the two guide slide bars 117. The magnetic plates 119 are magnetically matched with the iron core 104, and an electromagnet is embedded inside the iron core 104. The electromagnet is magnetically matched with the magnetic plates 119. A pull line 118 is also arranged around the guide slide bar 117. The two ends of the pull line 118 are respectively fixed to the top of the guide slide bar 117 and the upper surface of the magnetic plate 119, and a moving rack 120 is fixedly mounted on the magnetic plate 119. A moving rack support plate 121 and two parallel sliding column beams 132 are fixedly mounted on the base 101. A bottom separation frame 134 and a top separation frame 135 are slidably mounted on the two sliding column beams 132. The opposite surfaces of the bottom separation frame 134 and the top separation frame 135 are provided with conductive contacts 136 that can contact and conduct electricity with each other. Power-off springs 133 are provided on both sides of the opposite surfaces of the bottom separation frame 134 and the top separation frame 135 . The power-off springs 133 are arranged around the corresponding sliding column beams 132 , and the two ends of the power-off springs 133 are fixed to the bottom separation frame 134 and the top separation frame 135 .A sliding block 128 is fixedly installed on the moving rack support plate 121, a limit frame support slide bar 127 is slidably installed on the sliding block 128, a limit frame 129 is fixedly installed on the limit frame support slide bar 127, the limit frame 129 is used to limit the bottom separation frame 134 and the top separation frame 135, a trigger rack 131 is fixedly installed on the limit frame 129, and the trigger rack 131 is slidably installed on the moving rack support plate 121. The moving rack support plate 121 is also rotatably mounted with two stacked fixed large disc gears 130 and small disc gears 139, wherein the large disc gear 130 is meshed with the trigger rack 131, and the small disc gear 139 is meshed with the moving rack 120, and the moving rack support plate 121 is also rotatably mounted with a rotating swing plate 124 and a position-limiting one-way swing plate 123, wherein the rotating swing plate 124 is fixed to the large disc gear 130 or the small disc gear 139 via a rotating shaft, and the position-limiting one-way swing plate 123 is in contact with the rotating swing plate 124. A circular groove is also provided on the side of the moving rack support plate 121, and a magnetic rod 122 is inserted into the groove, and the circumferential surface of the magnetic rod 122 is in contact with the position-limiting one-way swing plate 123 to limit the rotation direction of the position-limiting one-way swing plate 123, wherein the magnetic rod 122 is magnetically matched with the moving rack support plate 121. A swing arm connecting rod 137 is movably installed on the bottom separation frame 134 and the top separation frame 135, and the opposite ends of the two swing arm connecting rods 137 are movably connected to one end of the reset pull rod 138, wherein the circumferential surface of the magnetic rod 122 and the reset pull rod 138 is slidably matched with the outer shell 2, and the outer shell 2 is fixed on the base 101. A reinforcement frame 103 is also arranged above the base 101, and the reinforcement frame 103 is fixed on the inner wall of the outer shell 2. The reinforcement frame 103 is used to support the second terminal 126.

[0026] The working principle of an intelligent display power equipment protection device disclosed in the present invention is as follows: all relative conductive contacts 136 are connected in series with the circuit to be protected, for example, two relatively arranged conductive contacts 136 are connected in series with one of the wires in the circuit, wherein the wire in the series circuit of the two relatively arranged conductive contacts 136 is also connected to the first terminal 125 and the second terminal 126, so that the current can pass through the hollow wire 113. When the load in the circuit is too large, the wire will heat up. At this time, the heat of the hollow wire 113 will increase, resulting in an increase in the pressure inside the hollow wire 113 (the hollow wire 113 can be filled with liquid to make it more susceptible to heat expansion). At this time, the pressure piston 112 will be pushed to move in the pressure conductive piston tube 111 (the hollow wire 113 is connected to the inside of the pressure conductive piston tube 111). The pressure piston 112 drives the pressure rack 108 to move, and the pressure rack 108 drives the pressure gear 110 to rotate. The pressure gear 110 drives the pointer 106 to rotate through the pointer transmission shaft 107, and the pointer 106 will point to the corresponding scale on the dial 105, thereby displaying the current temperature. The pointer transmission shaft 107 also drives the knob of the potentiometer to rotate, thereby changing the resistance value of the potentiometer, and controlling the start and stop of the electromagnet inside the iron core 104 through the potentiometer. That is, when the temperature is too high, the potentiometer controls the electromagnet to start (for example, the sliding resistor part inside the potentiometer will only connect the circuit when it moves to the end, and the rest of the part is in an open circuit state, which is equivalent to a switch, or a combination of an NPN transistor and a potentiometer is used for control, the former has a simpler structure and lower cost). When the electromagnet is started, it will generate magnetic force, thereby attracting the magnetic plate 119. At this time, the pull line 118 is in a stretched state, and the magnetic plate 119 will drive the moving rack 120 to move, and the moving rack 120 will drive the small plate gear 139 to rotate. The rotation of the small plate gear 139 will drive the rotating swing plate 124 and the large plate gear 130 to rotate, wherein the large plate gear 130 will drive the trigger rack 131 to move, and the trigger rack 131 will drive the limit frame 129 away from the bottom separation frame 134 and the top separation frame 135, so that the limit frame 129 no longer restricts the bottom separation frame 134 and the top separation frame 135, and the bottom separation frame 134 and the top separation frame 135 are away from each other under the elastic force of the power-off spring 133. When the moving rack 120 moves in the reverse direction, the rotating swing plate 124 will also move in the reverse direction. However, due to the restriction of the magnetic rod 122, the limiting one-way swing plate 123 cannot swing, so the moving rack 120 and the magnetic plate 119 cannot return to their initial positions.

[0027] In addition, when an excessive current appears in the circuit for a moment, the hollow conductor 113 surrounding the iron core 104 will cause the iron core 104 to generate magnetic force, thereby attracting the magnetic plate 119. At this time, the magnetic plate 119 will also move, and the pull line 118 will be in a stretched state, and finally the two conductive contacts 136 will be separated, causing the circuit to be powered off, thereby protecting the circuit.

[0028] To reset, first pull the reset rod 138. The reset rod 138 brings the bottom separation frame 134 and the top separation frame 135 closer to each other through the two swing arm links 137, allowing the two conductive contacts 136 to connect again, so that the circuit is connected, and then pull the magnetic rod 122 to separate the magnetic rod 122 from the limiting one-way swing plate 123, allowing the rotating swing plate 124 to swing to the initial position. At this time, the moving rack 120 will also return to the initial position. Similarly, the limiting frame 129 will also be stuck on the bottom separation frame 134 and the top separation frame 135, so that the two conductive contacts 136 remain in contact (the clamping connection between the limiting frame 129 and the bottom separation frame 134 and the top separation frame 135 is an extrusion fit, but the pulling force of the pull line 118 can overcome the friction between the limiting frame 129 and the bottom separation frame 134 and the top separation frame 135).

[0029] A power supply with the same frequency and phase as the power supply passed into the hollow conductor 113 can be applied to both ends of the frequency monitoring conductor 116, and the two ends can be kept synchronous, or a constant direct current can be passed, but the final detection result is different. Specifically, the alternating current flowing inside the hollow conductor 113 will generate an alternating magnetic field, and the alternating magnetic field will generate a changing induced current in the frequency monitoring conductor 116 (because the frequency of the alternating current increases, the magnetic field changes faster, and the induced electromotive force generated is greater). For example, a power supply with the same frequency and phase as the power supply passed into the hollow conductor 113 is applied to both ends of the frequency monitoring conductor 116. At this time, the current direction of this changing electric field will be opposite to the current direction of the power supply of the frequency monitoring conductor 116 itself, thereby reducing the current passing through the frequency monitoring conductor 116, that is, playing a role in hindering the current. Therefore, it is only necessary to monitor the change in the current size of the power supply applied to both ends of the frequency monitoring conductor 116 to monitor the change in frequency in the internal circuit of the hollow conductor 113. If a DC power supply is applied to both ends of the frequency monitoring conductor 116, the current inside it will be large and small at times. This is because the direction of the current generated in the frequency monitoring conductor 116 is constantly changing.

Claims

1. An intelligent display power equipment protection device, characterized in that: The invention comprises an iron core (104), a hollow wire (113) is arranged around the outer surface of the iron core (104), the interior of the hollow wire (113) is hollow, and a pressure conductive piston tube (111) and a frequency monitoring tube (114) are respectively fixedly installed at both ends of the hollow wire (113), wherein the frequency monitoring tube (114) is blocked and sealed with an insulating layer (115), and the insulating layer (115) is filled with a frequency monitoring conductor (116), and both ends of the frequency monitoring conductor (116) are led out to the outside of the frequency monitoring tube (114) through a wire, and the wire and the frequency monitoring tube (114) are insulated; A pressure piston (112) is slidingly sealed on the inner wall of the pressure conductive piston tube (111), a pressure rack (108) is fixedly mounted on the pressure piston (112), and the pressure rack (108) drives the pointer (106) to rotate via the pressure gear (110) and the pointer transmission shaft (107); A moving rack support plate (121) and two parallel sliding column beams (132) are fixedly mounted on the base (101); a bottom separation frame (134) and a top separation frame (135) are slidably mounted on the two sliding column beams (132); conductive contacts (136) capable of contacting and conducting electricity are disposed on opposing surfaces of the bottom separation frame (134) and the top separation frame (135); power-off springs (133) are disposed on both sides of opposing surfaces of the bottom separation frame (134) and the top separation frame (135); the power-off springs (133) are disposed around corresponding sliding column beams (132), and the power-off springs (133) are disposed on the corresponding sliding column beams (132). The two ends of the electric spring (133) are fixed to the bottom separation frame (134) and the top separation frame (135); a sliding block (128) is fixedly mounted on the moving rack support plate (121); a limit frame support slide bar (127) is slidably mounted on the sliding block (128); a limit frame (129) is fixedly mounted on the limit frame support slide bar (127); the limit frame (129) is used to limit the bottom separation frame (134) and the top separation frame (135); a trigger rack (131) is fixedly mounted on the limit frame (129); and the trigger rack (131) is slidably mounted on the moving rack support plate (121); Two stacked and fixed large disc gears (130) and small disc gears (139) are also rotatably mounted on the motion rack support plate (121), wherein the large disc gear (130) meshes with the trigger rack (131), and the small disc gear (139) meshes with the motion rack (120), and a rotating swing plate (124) and a position-limiting one-way swing plate (123) are also rotatably mounted on the motion rack support plate (121), wherein the rotating swing plate (124) is fixed to the large disc gear (130) or the small disc gear (139) via a rotating shaft, and the position-limiting one-way swing plate (123) is in contact with the rotating swing plate (124); A circular groove is also formed on the side of the moving rack support plate (121), and a magnetic rod (122) is inserted into the groove. The circumferential surface of the magnetic rod (122) is in contact with and matched with the limiting one-way swing plate (123) to limit the rotation direction of the limiting one-way swing plate (123), wherein the magnetic rod (122) and the moving rack support plate (121) are magnetically matched. A swing arm connecting rod (137) is movably mounted on both the bottom separation frame (134) and the top separation frame (135), and the opposite ends of the two swing arm connecting rods (137) are movably connected to one end of a reset pull rod (138), wherein the circumferential surfaces of the magnetic rod (122) and the reset pull rod (138) are slidably matched with the outer shell (2), and the outer shell (2) is fixed on the base (101). A reinforcement frame (103) is also arranged above the base (101), and the reinforcement frame (103) is fixed on the inner wall of the outer shell (2). The reinforcement frame (103) is used to support the second wiring terminal (126).

2. The intelligent display power equipment protection device according to claim 1, characterized in that: A section of the pressure conductive piston tube (111) is fixedly mounted with a pressure rack support plate (109), wherein a pressure gear (110) is rotatably mounted on the pressure rack support plate (109), the pressure gear (110) is meshed with the pressure rack (108), the pressure gear (110) and the pointer (106) are fixed via a pointer transmission shaft (107), wherein a scale plate (105) is sleeved on the outer side of the pointer transmission shaft (107), the scale plate (105) and the iron core (104) are both fixed on a support platform (102), and the support platform (102) is fixed on a base (101).

3. The intelligent display power equipment protection device according to claim 2 is characterized in that: A first wiring terminal (125) and a second wiring terminal (126) are respectively fixed on the outer surfaces of the pressure conductive piston tube (111) and the frequency monitoring tube (114) for installing wires, wherein the scale plate (105) is provided with scales.

4. The intelligent display power equipment protection device according to claim 3 is characterized in that: Two parallel guide slide bars (117) are fixedly mounted on the iron core (104), and magnetic plates (119) are slidably mounted on the two guide slide bars (117). The magnetic plates (119) are magnetically matched with the iron core (104), and an electromagnet is embedded inside the iron core (104). The electromagnet is magnetically matched with the magnetic plates (119). A pull rod (118) is also arranged around the guide slide bar (117), and two ends of the pull rod (118) are respectively fixed to the top of the guide slide bar (117) and the upper surface of the magnetic plate (119), and a moving rack (120) is fixedly mounted on the magnetic plate (119).

Images