Electric leakage protection device for rural power station area
By designing a leakage protection device in the agricultural station area including a leakage protector and a fixing mechanism, the problem of insufficient fixity and adaptability in the prior art is solved, and the rapid fixation and stable connection of the leakage protector is achieved, and the adaptability is high.
Patent Information
- Application Number
- CN202311181389.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-13
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing intelligent leakage protection devices in low-voltage table areas of rural networks have shortcomings in terms of fixity and adaptability, and are susceptible to external collisions and unevenness on the surface of the equipment, resulting in unstable fixation and low adaptability.
A leakage protection device in the agricultural power station area is designed including a leakage protector and a fixing mechanism. The fixing mechanism rotates the threaded rod by rotating the knob. Combined with the design of the clamp and the anti-slip gasket, it can be quickly fixed to a small distribution device and prevents disengagement through the design of the card slot and the fixing slot.
It realizes rapid fixing and stable connection of leakage protectors, has high adaptability and is not affected by the material of the equipment, ensuring the firmness and convenience of use of the fixing mechanism.
Smart Images
Figure CN119627628A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric power equipment, and in particular to a leakage protection device for a rural power transmission area. Background Art
[0002] With the continuous improvement of rural economy, culture and living standards, the vast rural areas have high-quality demands for power supply scale, power supply capacity and power supply quality. The quality of rural power supply is not only a market behavior, but also related to the stability of the vast rural areas and the sustainable development of China in the future. Therefore, whether the rural power grid can be maintained and the normal power supply to the rural areas is the responsibility of the power supply department. At present, the power supply range of the distribution station area is relatively scattered, the power supply path is relatively long, and the area manager is responsible for a relatively large area. When the low-voltage equipment fails and a power outage occurs, the repair personnel need to spend a lot of time and energy to find the fault point, which greatly reduces the reliability, safety and stability of residents' electricity use.
[0003] The Chinese invention patent with publication number published on December 11, 2018 discloses an intelligent leakage protection device for low-voltage substations in rural power grids with communication technology, including a housing and a control unit. Two parallel sliding rods are arranged on the rear end face of the housing. The sliding rods are columnar structures. Two clamping plates and a tension spring are arranged on each sliding rod. The clamping plates are slidably connected to the sliding rods. The tension springs are sleeved on the sliding rods. The two ends of the tension spring on the same sliding rod are respectively fixedly connected to the two clamping plates. A plurality of magnets and suction cups are arranged on the rear end face of the housing. The distance between the outer end of the suction cup and the housing, the distance between the outer end of the magnet and the housing, and the distance between the outer end of the sliding rod and the housing decrease in sequence. The present invention can be installed and used in conjunction with different power distribution equipment by arranging a variety of fixed structures, and has strong adaptability.
[0004] The technical solution recorded in this proposal can fix the shell to the small power distribution equipment through the use of a tension spring and a pair of clamps, and rely on magnets and suction cups for auxiliary fixation. However, the tension spring itself is easily deformed by external collision. Therefore, relying on the tension spring for fixation may easily cause the shell to separate from the small power distribution equipment. Secondly, it is difficult for the exterior of the small power distribution equipment to be smooth and flat during long-term use. Therefore, relying on the suction cup for fixation cannot ensure that the suction cup is in a sealed state for a long time, and the firmness of the fixation between the shell and the small power distribution equipment cannot be guaranteed. Therefore, this device is only suitable for small power distribution equipment with a magnetic metal shell, so the adaptability of this device is relatively low. Summary of the invention
[0005] In order to make up for the above shortcomings, the present invention provides a leakage protection device for a rural radio area.
[0006] The present invention is achieved in that:
[0007] A leakage protection device for an agricultural radio station area comprises a leakage protector and a fixing mechanism, the leakage protector comprises a shell, the fixing mechanism comprises a slide plate, and the slide plate and the shell are snap-connected, a fixing rod is installed on one side of the slide plate, an installation cavity and a slide groove are respectively provided inside and on one side of the fixing rod, and the slide groove and the installation cavity are connected to each other, a threaded rod is connected to the inside of the installation cavity through a bearing, a connecting block is bite-connected to the outside of the threaded rod, the connecting block can slide inside the installation cavity, a slider is installed on one side of the connecting block, and the slider can slide inside the slide groove, a first clamping plate is provided on the outside of the fixing rod, the first clamping plate is connected to the slider, a second clamping plate is installed on the bottom end of the fixing rod, a knob is rotatably connected to the top end of the fixing rod, and the knob and the threaded rod are transmission-connected.
[0008] The beneficial effect of adopting the above-mentioned further scheme is that by rotating the knob, the threaded rod can be rotated, thereby moving the first clamping plate up and down. When in use, the fixing rod can be fitted with the outside of the small power distribution equipment, and the second clamping plate can be fitted with the bottom of the small power distribution equipment. Then the knob is rotated to move the first clamping plate toward the second clamping plate, so that the first clamping plate and the second clamping plate clamp the small power distribution equipment, thereby completing the fixation of the leakage protector. The fixing mechanism can quickly fix the leakage protector to any small power supply equipment, and will not be affected by the material of the leakage protector and the small power supply equipment, so it has high adaptability.
[0009] Furthermore, the first clamping plate and the second clamping plate are both installed with anti-slip pads on the sides close to each other.
[0010] The beneficial effect of adopting the above further solution is that the anti-skid pad can increase the friction between the first clamping plate, the second clamping plate and the small power supply device, thereby preventing the fixing mechanism from sliding on the small power supply device.
[0011] Furthermore, a slot is provided on the back of the shell, and the slide plate can slide inside the slot.
[0012] The beneficial effect of adopting the above further solution is that the slot can connect the slide plate and the housing.
[0013] Furthermore, fixing grooves are provided on both sides of the card slot, fixing bars are installed on both sides of the slide plate, and the fixing bars can slide inside the fixing grooves.
[0014] The beneficial effect of adopting the above further solution is that the fixing groove and the fixing strip can prevent the slide plate from being separated from the shell.
[0015] Furthermore, a first support plate is installed on one side of the skateboard, and a pair of mounting grooves are opened on the other side of the skateboard, and the interiors of the pair of mounting grooves are connected to the rotating shaft through torsion springs, and mounting blocks are installed on the outer sides of the rotating shafts, and a second support plate is connected to one side of the mounting block, and a through hole and a threaded hole are respectively opened on the second support plate and one side of the outer shell.
[0016] The beneficial effect of adopting the above further scheme is that the first abutment plate can make one end of the skateboard abut against the outer shell, and the rotating shaft can make the second abutment plate rotate. Therefore, before fixing, the second abutment plate is rotated to the back of the skateboard, and then the skateboard is slid into the slot, and the first abutment plate is abutted against the outer shell. By rotating the second abutment plate, the second abutment plate is abutted against the outer shell, and finally the second abutment plate and the outer shell can be fixed together with bolts. In this way, the leakage protector can be quickly disassembled and assembled.
[0017] Furthermore, a gate valve is movably connected to one side of the front face of the shell, and a reset button and a test button are installed on the other side of the front face of the shell.
[0018] The beneficial effect of adopting the above further scheme is that when electrical equipment leaks, two abnormal phenomena will occur: first, the balance of the three-phase current is destroyed and zero-sequence current appears; second, the metal shell that is not charged normally has a voltage to the ground; among them, the role of the zero-sequence current transformer is that the leakage protector obtains abnormal signals through the current transformer detection, and converts and transmits them through the intermediate mechanism to make the actuator work and disconnect the power supply through the switch device. The structure of the current transformer is similar to that of the transformer, which is composed of two mutually insulated coils wound on the same iron core. When there is residual current in the primary coil, the secondary coil will induce current. The working principle of the leakage protector is to install the leakage protector in the line, the primary coil is connected to the line of the power grid, and the secondary coil is connected to the release in the leakage protector. When the electrical equipment is operating normally, the current in the line is in a balanced state, and the sum of the current vectors in the transformer is zero. Since there is no residual current in the primary coil, the secondary coil will not be induced, and the switch device of the leakage protector is in a closed state. When the equipment casing leaks and someone touches it, a shunt occurs at the fault point. This leakage current returns to the neutral of the transformer through the human body, the earth, and the working ground, causing an imbalance in the current flowing into and out of the transformer. The primary coil generates residual current, and therefore, it will induce the secondary coil. When this current value reaches the action current value specified by the leakage protector, the automatic switch trips and cuts off the power supply to achieve the purpose of leakage protection.
[0019] Furthermore, a plurality of screw slots are provided on the front side of the shell, and a plurality of wiring slots are provided on the top side of the shell, and the number of the screw slots and the wiring slots are the same.
[0020] The beneficial effect of adopting the above further solution is that the wiring slot can connect the wires to the leakage protector and fix the wires with screws.
[0021] Furthermore, a data acquisition module, a processor and a signal transceiver are installed inside the shell, and the data acquisition module and the signal transceiver are electrically connected to the processor.
[0022] The beneficial effect of adopting the above further scheme is that the data acquisition module can collect the leakage data of the leakage protector and send it to the processor. Through the use of a signal transceiver, the data can be transmitted to the main station using a 4G or 5G network, so that maintenance personnel can rush to the scene to deal with the fault as soon as possible.
[0023] The beneficial effects of the present invention are as follows: the present invention obtains a leakage protection device for an agricultural power distribution area through the above-mentioned design, and by rotating the knob, the threaded rod can be rotated, so that the first clamping plate can be moved up and down. When in use, the fixing rod can be fitted with the outer side of the small power distribution equipment, and the second clamping plate can be fitted with the bottom of the small power distribution equipment, and then the knob is rotated to move the first clamping plate toward the direction of the second clamping plate, so that the first clamping plate and the second clamping plate clamp the small power distribution equipment, thereby completing the fixation of the leakage protector. The fixing mechanism can quickly fix the leakage protector on any small power supply equipment, and will not be affected by the materials of the leakage protector and the small power supply equipment, so it has high adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0025] Figure 1 A schematic diagram of the three-dimensional structure of a leakage protection device for an agricultural radio area provided by the present invention;
[0026] Figure 2 A schematic diagram of the back three-dimensional structure of a leakage protector of a leakage protection device for an agricultural radio station area provided by the present invention;
[0027] Figure 3 A schematic cross-sectional structure diagram of a fixing rod of a leakage protection device for an agricultural radio station area provided by the present invention;
[0028] Figure 4 for Figure 3 A schematic diagram of the structure of structure A in the middle;
[0029] Figure 5A three-dimensional structural schematic diagram of a fixing mechanism of a leakage protection device for an agricultural radio station provided by the present invention.
[0030] In the figure: 100, leakage protector; 1001, housing; 1002, gate valve; 1003, reset button; 1004, test button; 1005, screw slot; 1006, wiring slot; 1007, card slot; 1008, fixing slot; 200, fixing mechanism; 2001, slide plate; 2002, fixing rod; 2003, mounting cavity; 2004, threaded rod; 2005, slide slot; 2006, connecting block; 2007, slider; 2008, first clamping plate; 2009, second clamping plate; 2010, anti-slip pad; 2011, knob; 2012, first abutment plate; 2013, fixing strip; 2014, mounting slot; 2015, mounting block; 2016, second abutment plate; 2017, through hole. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] Embodiment 1 of the present invention of a leakage protection device for an agricultural radio area
[0034] The present invention provides the following technical solutions: Figure 3, including a leakage protector 100 and a fixing mechanism 200, the leakage protector 100 includes a shell 1001, the fixing mechanism 200 includes a slide plate 2001, and the slide plate 2001 and the shell 1001 are snap-connected, a fixing rod 2002 is installed on one side of the slide plate 2001, the interior and one side of the fixing rod 2002 are respectively provided with an installation cavity 2003 and a slide groove 2005, and the slide groove 2005 and the installation cavity 2003 are connected to each other, the interior of the installation cavity 2003 is connected with a threaded rod 2004 through a bearing, the outer side of the threaded rod 2004 is snap-connected with a connecting block 2006, the connecting block 2006 can slide inside the installation cavity 2003, a slider 2007 is installed on one side of the connecting block 2006, and the slider 2007 can slide inside the slide groove 2005, a first clamping plate 2008 is provided on the outer side of the fixing rod 2002, the first clamping plate 2006 and the slider 2007 are connected, the fixing rod 200 2 is installed with a second clamping plate 2009 at the bottom end, and the top end of the fixing rod 2002 is rotatably connected with a knob 2011, and the knob 2011 is transmission-connected with the threaded rod 2004. By rotating the knob 2011, the threaded rod 2004 can be rotated, so that the first clamping plate 2006 moves up and down. When in use, the fixing rod 2002 can be fitted with the outer side of the small power distribution equipment, and the second clamping plate 2009 can be fitted with the bottom of the small power distribution equipment. The knob 2011 is then rotated to make the first clamping plate 2006 move toward the direction of the second clamping plate 2009, so that the first clamping plate 2006 and the second clamping plate 2009 clamp the small power distribution equipment, thereby completing the fixation of the leakage protector 100. The fixing mechanism 200 can quickly fix the leakage protector 100 on any small power supply equipment, and will not be affected by the materials of the leakage protector 100 and the small power supply equipment, so it has high adaptability.
[0035] Embodiment 2 of the present invention of a leakage protection device for an agricultural radio area
[0036] Reference Figure 2 , Figure 4 and Figure 5Specifically, a card slot 1007 is provided on the back of the shell 1001, and the skateboard 2001 can slide inside the card slot 1007, and the card slot 1007 can connect the skateboard 2001 and the shell 1001, and fixed slots 1008 are provided on both sides of the card slot 1007, and fixed bars 2013 are installed on both sides of the skateboard 2001, and the fixed bars 2013 can slide inside the fixed slots 1008, and the fixed slots 1008 and the fixed bars 2013 can prevent the skateboard 2001 from being separated from the shell 1001, and a first abutment plate 2012 is installed on one side of the skateboard 2001, and a pair of mounting slots 2014 are provided on the other side of the skateboard 2001, and the insides of the pair of mounting slots 2014 are connected to the rotating shaft through torsion springs, and the outer sides of the rotating shafts are installed with mounting blocks 2015, and the mounting A second butt plate 2016 is connected to one side of the mounting block 2015. A through hole 2017 and a threaded hole are respectively provided on one side of the second butt plate 2016 and the outer shell 1001. The first butt plate 2012 can make one end of the slide plate 2001 butt against the outer shell 1001, and the rotating shaft can make the second butt plate 2016 rotate. Therefore, before fixing, the second butt plate 2016 is rotated to the back of the slide plate 2001, and then the slide plate 2001 is slid into the slot 1007, and the first butt plate 2012 is pressed against the outer shell 1001. By rotating the second butt plate 2016, the second butt plate 2016 is pressed against the outer shell 1001. Finally, the second butt plate 2016 and the outer shell 1001 can be fixed together with bolts. In this way, the leakage protector 100 can be quickly disassembled and assembled.
[0037] Embodiment 3 of the present invention's leakage protection device for agricultural radio area
[0038] Reference Figure 1Specifically, a gate valve 1002 is movably connected to one side of the front of the housing 1001, and a reset button 1003 and a test button 1004 are installed on the other side of the front of the housing 1001. When leakage occurs in electrical equipment, two abnormal phenomena will occur: first, the balance of the three-phase current is destroyed and zero-sequence current appears; second, the metal housing that is not charged normally has a voltage to the ground; among them, the role of the zero-sequence current transformer The leakage protector 100 obtains abnormal signals through the current transformer detection, and converts and transmits them through the intermediate mechanism to activate the actuator and disconnect the power supply through the switch device. The structure of the current transformer is similar to that of the transformer, and is composed of two mutually insulated coils wound on the same iron core. When there is residual current in the primary coil, the secondary coil will induce current. The working principle of the leakage protector 100 is to install the leakage protector 100 in the line, connect the primary coil to the line of the power grid, and connect the secondary coil to the release in the leakage protector 100. When the electrical equipment is operating normally, the current in the line is balanced, and the sum of the current vectors in the mutual inductor is zero. Since there is no residual current in the primary coil, the secondary coil will not be induced, and the switch device of the leakage protector 100 is in a closed state. When the equipment casing leaks and someone touches it, a shunt is generated at the fault point. This leakage current returns to the neutral of the transformer through the human body, the earth, and the working ground, causing the current flowing in and out of the mutual inductor to be unbalanced, and the primary coil generates residual current, so it will induce the secondary coil. When this current value reaches the action current value specified by the leakage protector 100, the automatic switch trips and cuts off the power supply to achieve the purpose of leakage protection.
[0039] Specifically, the working principle of the leakage protection device for the agricultural power station area is as follows: when in use, the threaded rod 2004 can be rotated by rotating the knob 2011, so that the first clamping plate 2006 can be moved up and down. When in use, the fixing rod 2002 can be fitted with the outer side of the small distribution equipment, and the second clamping plate 2009 can be fitted with the bottom of the small distribution equipment. Then the knob 2011 is rotated to move the first clamping plate 2006 toward the second clamping plate 2009, so that the first clamping plate 2006 and the second clamping plate 2009 clamp the small distribution equipment, thereby completing the fixation of the leakage protector 100. When electrical equipment leaks, two abnormal phenomena will occur: first, the balance of the three-phase current is destroyed and zero-sequence current appears; second, the metal casing that is not charged under normal circumstances has a voltage to the ground; wherein, the role of the zero-sequence current transformer The leakage protector 100 obtains an abnormal signal through the current transformer detection, and transmits it through the intermediate mechanism to activate the actuator and disconnect the power supply through the switch device. The structure of the current transformer is similar to that of a transformer, and is composed of two mutually insulated coils wound on the same core. When there is residual current in the primary coil, the secondary coil will induce current. The working principle of the leakage protector 100 is to install the leakage protector 100 in the line, connect the primary coil to the line of the power grid, and connect the secondary coil to the tripper in the leakage protector 100. When the electrical equipment is operating normally, the current in the line is in a balanced state, and the sum of the current vectors in the transformer is zero. Since there is no residual current in the primary coil, the secondary coil will not be induced, and the switch device of the leakage protector 100 is in a closed state. When the equipment casing leaks and someone touches it, a shunt is generated at the fault point. This leakage current returns to the neutral of the transformer through the human body, the earth, and the working ground, causing the current flowing in and out of the transformer to be unbalanced, and the primary coil generates residual current, so it will induce the secondary coil. When this current value reaches the action current value specified by the leakage protector 100, the automatic switch trips and cuts off the power supply to achieve the purpose of leakage protection.
[0040] It should be noted that the specific model and specifications of the leakage protector 100 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.
[0041] The power supply and principle of the leakage protector 100 are clear to those skilled in the art and will not be described in detail here.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A leakage protection device for agricultural radio stations, characterized in that: It comprises a leakage protector (100) and a fixing mechanism (200), The leakage protector (100) comprises a housing (1001), the fixing mechanism (200) comprises a slide plate (2001), and the slide plate (2001) and the housing (1001) are snap-connected, a fixing rod (2002) is installed on one side of the slide plate (2001), an installation cavity (2003) and a slide groove (2005) are respectively provided inside and on one side of the fixing rod (2002), and the slide groove (2005) and the installation cavity (2003) are connected to each other, the inside of the installation cavity (2003) is connected to a threaded rod (2004) via a bearing, and the outside of the threaded rod (2004) is snap-connected to a connecting block (2005). 06), the connecting block (2006) can slide inside the installation cavity (2003), a slider (2007) is installed on one side of the connecting block (2006), and the slider (2007) can slide inside the slide groove (2005), a first clamping plate (2008) is provided on the outer side of the fixing rod (2002), the first clamping plate (2006) and the slider (2007) are connected, a second clamping plate (2009) is installed at the bottom end of the fixing rod (2002), a knob (2011) is rotatably connected to the top end of the fixing rod (2002), and the knob (2011) and the threaded rod (2004) are transmission-connected.
2. The leakage protection device for agricultural power station area according to claim 1 is characterized in that: The first clamping plate (2008) and the second clamping plate (2009) are both provided with anti-skid pads (2010) on the sides close to each other.
3. The leakage protection device for agricultural power station area according to claim 1 is characterized in that: A slot (1007) is provided on the back of the housing (1001), and the slide plate (2001) can slide inside the slot (1007).
4. The leakage protection device for agricultural power station area according to claim 3 is characterized in that: Both sides of the card slot (1007) are provided with fixing slots (1008), and both sides of the slide plate (2001) are provided with fixing bars (2013), and the fixing bars (2013) can slide inside the fixing slots (1008).
5. The leakage protection device for agricultural power station area according to claim 4 is characterized in that: A first abutment plate (2012) is installed on one side of the slide plate (2001), and a pair of mounting grooves (2014) are provided on the other side of the slide plate (2001), and the interiors of the pair of mounting grooves (2014) are connected to a rotating shaft via a torsion spring, and a mounting block (2015) is installed on the outer side of the rotating shaft, and a second abutment plate (2016) is connected to one side of the mounting block (2015), and a through hole (2017) and a threaded hole are respectively provided on the second abutment plate (2016) and one side of the housing (1001).
6. The leakage protection device for agricultural power station area according to claim 1 is characterized in that: A gate valve (1002) is movably connected to one side of the front face of the housing (1001), and a reset button (1003) and a test button (1004) are installed on the other side of the front face of the housing (1001).
7. The leakage protection device for agricultural power station area according to claim 6 is characterized in that: The front of the housing (1001) is provided with a plurality of screw slots (1005), and the top of the housing (1001) is provided with a plurality of wiring slots (1006), and the number of the screw slots (1005) and the number of the wiring slots (1006) are the same.
8. The leakage protection device for agricultural power station area according to claim 7 is characterized in that: A data acquisition module, a processor and a signal transceiver are installed inside the housing (1001), and the data acquisition module and the signal transceiver are electrically connected to the processor.