Stable protection equipment for resisting voltage sag
By using the raised structure of the protective tube and transparent insulating material in the anti-voltage drop equipment, the equipment short circuit and damage caused by voltage drop are solved, and equipment protection and voltage fluctuation compensation are achieved in high humidity environments.
Patent Information
- Application Number
- CN202323658502.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The voltage drop may cause short circuits and damage to the equipment, especially in humid environments, where condensation and equipment damage caused by current changes are difficult to effectively solve.
A stable device that resists voltage drop is designed, including compensation devices, fuses, energy storage devices and protective tubes. The inner wall of the protective tube is equipped with a raised structure to prevent water vapor from condensation, and a transparent insulation material and oil layer are used to provide additional Surface area and electrical insulation properties.
It effectively reduces the risk of water vapor condensation, prevents electrical failures and short circuits, ensures that the equipment is not damaged when operating in a high-humidity environment, and compensates for voltage drop through compensation devices, reducing the risks caused by condensation and temperature changes.
Smart Images
Figure CN222215197U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of voltage sag, and in particular relates to a stabilizing and protecting device for resisting voltage sag. Background Art
[0002] Voltage sag refers to the phenomenon that the voltage in the power system drops below the normal value for a short period of time. This phenomenon is usually instantaneous and lasts for a short time, usually between milliseconds and a few seconds. Voltage sag may be caused by factors such as sudden faults in the system, equipment startup, or sudden power disconnection of high-power equipment. Voltage sag may affect the equipment and systems connected to the power grid. Some sensitive electronic equipment, such as computers, servers, and electronic manufacturing equipment, are usually very sensitive to voltage fluctuations. If the voltage sag is large enough or lasts for a long time, these devices may not work properly or even be damaged.
[0003] During the voltage sag, the current changes accordingly, which can cause condensation in the humid southern regions in winter, and easily cause equipment short circuits. In addition, the change in current can easily cause damage to the equipment. For this reason, it is necessary to add protection devices to the equipment to reduce the impact of voltage changes on the equipment. Utility Model Content
[0004] In view of this, the utility model provides a stabilizing and protecting device for resisting voltage sag, which can prevent electrical faults caused by moisture.
[0005] The utility model is achieved in this way:
[0006] The utility model provides a stabilizing and protecting device for resisting voltage sag, comprising a compensation device, a first fuse, a thyristor rectifier and a second fuse connected in series in sequence; the input end of the first fuse is used to connect to the access end of the mains, and the output end of the second fuse is used to connect to the electrical equipment; it also comprises an energy storage device connected in series in sequence, and a conversion device for converting direct current into alternating current electric energy, the compensation device is connected with an outgoing line and an incoming line, and the compensation device is respectively provided with a protective tube at the connection between the outgoing line and the incoming line, the protective tube is provided between the access end of the mains and the compensation device, and / or between the electrical equipment and the compensation device, and the inner wall of the protective tube is provided with a protrusion, and the protrusion is used to prevent water droplets from falling;
[0007] Wherein, gaskets are respectively arranged at both ends of the protection tube.
[0008] When a voltage sag occurs, the energy storage device in the compensation device can play a role in replenishing energy and raising the voltage, and the two fuses can play a protective role. The current rises, causing water vapor to condense on the surface of the cable of the compensation device, which may cause the risk of short circuit of some components. The presence of the raised structure of the protective tube prevents water vapor from condensing along the bottom of the tube because these protrusions provide additional surface area for water vapor to disperse and evaporate. This design ensures that the inside of the glass tube remains dry, thereby preventing electrical failures caused by moisture.
[0009] On the basis of the above technical solution, the utility model of a voltage sag stabilization protection device can also be improved as follows:
[0010] Wherein, the protective tube is made of transparent material.
[0011] Furthermore, the protection tube is made of insulating material and the inner surface is coated with an oil layer.
[0012] The beneficial effect of adopting the above-mentioned improvement scheme is that the glass tube needs to provide sufficient electrical insulation performance to prevent short circuits between wires. The role of this glass tube is to provide insulation and protection to ensure that the electronic components are not damaged during operation.
[0013] Furthermore, the protective tubes are respectively sleeved on the connection between the compensation device and the outgoing line and the incoming line.
[0014] Protective tubes prevent dust, moisture, water droplets and other contaminants from entering compensation devices or wire connection points. This is critical to the reliability of electrical equipment, as dust and moisture can cause electrical shorts, malfunctions and damage.
[0015] Furthermore, the protrusion is hemispherical.
[0016] Hemispherical bumps are often used to evenly disperse water vapor. Their flat tops provide a large surface area that helps the water vapor disperse and spread evenly within the tube. This helps prevent the water vapor from condensing at the bottom of the tube, reducing the risk of short circuits.
[0017] Furthermore, the protrusion is conical.
[0018] The conical protrusion has a smaller area at its top tip, which makes it difficult for moisture to condense and drip off the top of the cone. This design is better suited to prevent moisture from dripping to the bottom of the tube and causing a short circuit. The conical protrusion can help self-clean through gravity. When moisture condenses on the top of the cone, due to the characteristics of the shape, the water droplets may slide down quickly, taking the moisture with them. This helps keep the inside of the tube dry.
[0019] Furthermore, the spacing between each of the protrusions is distributed at equal intervals.
[0020] The beneficial effect of adopting the above-mentioned improvement scheme is that the presence of the protruding structure of the glass tube can prevent water vapor from condensing along the bottom of the tube because these protrusions provide additional surface area for the water vapor to disperse and evaporate.
[0021] Furthermore, the gasket having a sealing function is annular and is located between the protection tube and the outlet line or the inlet line.
[0022] The beneficial effect of adopting the above-mentioned improvement scheme is: by using a gasket, it is ensured that the seal and the interface of the protection tube are sealed to prevent water vapor or dust from entering.
[0023] Furthermore, the gasket is made of polytetrafluoroethylene or rubber.
[0024] Different sealing materials have different characteristics and advantages in sealing applications and can be selected according to specific usage conditions and requirements.
[0025] Compared with the prior art, the beneficial effects of the voltage sag stabilization device provided by the utility model are:
[0026] 1: Reduce the risk of water vapor condensation: The raised structure of the glass tube effectively reduces the risk of water vapor condensing at the bottom of the tube by providing additional surface area. In a high humidity environment, water vapor easily condenses on the cooling surface, especially at the bottom of the glass tube. The presence of the raised structure increases the surface area, making it difficult for water vapor to easily settle, thereby reducing the chance of causing short circuits and other problems.
[0027] 2: Through the compensation device, compensation and protection against voltage sag can be achieved, temperature changes caused by voltage fluctuations can be avoided, and the occurrence of condensation can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0029] Figure 1 It is a schematic diagram of a voltage sag protection device;
[0030] Figure 2 This is a schematic diagram of a protective tube for equipment against voltage sag;
[0031] Figure 3 A schematic diagram of a bulge in a protective tube of a device that resists voltage sag;
[0032] Figure 4 It is a schematic diagram of the structure of a voltage sag resistance device;
[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0034] 10. Outgoing wire; 20. Incoming wire; 30. Protective tube; 31. Gasket. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.
[0036] like Figure 1 to Figure 4 As shown, it is an embodiment of a stabilizing and protecting device for resisting voltage sag provided by the utility model. The device may be a power transmission and distribution device in the field of isolated power. In this embodiment, it includes a compensation device, and the compensation device includes a first fuse, a thyristor rectifier, and a second fuse connected in series in sequence; the input end of the first fuse is used to connect to the access end of the mains, and the output end of the second fuse is used to connect to the electrical equipment; it also includes an energy storage device and a conversion device for converting direct current into alternating current electric energy connected in series in sequence, the compensation device is connected with an outgoing line 10 and an incoming line 20, and protective tubes 30 are respectively arranged on the outside of the connection between the compensation device and the outgoing line 10 and the incoming line 20, and the protective tube 30 is arranged between the electrical access end and the compensation device, and the inner wall of the protective tube 30 is provided with a protrusion, and the protrusion is used to prevent water droplets from dripping;
[0037] Gaskets 31 are respectively provided at both ends of the protection tube 30. It should be noted that the energy storage device adopts a lithium iron phosphate battery pack, which can be used to replenish energy in a voltage drop fluctuation state.
[0038] The conversion device inputs the converted AC power into the electrical equipment.
[0039] Two fuses, the first one is used to protect the compensation device and electrical equipment;
[0040] The second fuse is used to protect the electrical equipment separately.
[0041] At both ends of the supplementary device, or at one end, you can add Figure 2 ,or Figure 3 The protective tube shown in the figure can adopt the shape shown in the figure, which can effectively alleviate the water vapor in the air from condensing into water droplets and sliding down.
[0042] Among them, in the above technical solution, the protection tube 30 can be made of a transparent insulating material, such as glass.
[0043] Furthermore, in the above technical solution, the protection tube 30 is made of insulating material, and the inner surface is coated with an oil layer, such as ceramic material, coated with an oil layer or electric composite grease.
[0044] Insulating materials such as glass are often considered to be super-hydrophobic surfaces. This means that the glass surface is hydrophobic to water or other liquids, i.e. it is not easily wetted by liquids. Water droplets on the surface of glass usually bead up and do not easily cover the surface evenly. This is because the surface energy is higher and the water molecules tend to attract each other to form small droplets. Special coatings or treatments are used to make it hydrophilic. This treatment causes water to spread evenly on the surface of the glass, thus changing its original hydrophobicity. On a super-hydrophilic surface, water is more likely to evenly cover the surface without forming droplets. This causes the liquid to form a uniform thin layer on the surface, which increases the contact area between the liquid and the surface and promotes the manifestation of surface tension.
[0045] Furthermore, in the above technical solution, the protective tube 30 is respectively sleeved at the connection between the compensation device and the outgoing line 10 and the incoming line 20. If a sealing structure is installed at these two positions, heat dissipation will be affected. If the solution in the embodiment is adopted, the water droplets that are easy to condense at the end of the shell can be attached to the surface of the protective tube 30. The possibility of water droplets flowing along the cable to the device is reduced.
[0046] like Figure 2 As shown, further, in the above technical solution, the protrusion is hemispherical.
[0047] Furthermore, in the above technical solution, the spacing between each protrusion is distributed at equal intervals.
[0048] The closely arranged protrusions mean that the bottom of each protrusion is connected. According to the relatively dense arrangement, the distance between the protrusions is small, so that the purpose of achieving surface tension of the liquid therein can be achieved.
[0049] Furthermore, in the above technical solution, the protection tube 30 is a cylinder.
[0050] Furthermore, in the above technical solution, the gasket 31 having a sealing function is annular and is located between the protection tube 30 and the outgoing line 10 or the incoming line 20; the gasket 31 is used to seal the protection tube 30 to prevent water vapor or dust from entering.
[0051] Furthermore, in the above technical solution, the gasket 31 is made of polytetrafluoroethylene or rubber.
[0052] like Figure 3 As shown, further, in the above technical solution, the protrusion is conical.
[0053] To form surface tension, the distance between the protrusions needs to be small enough so that the water droplets can remain stably between the protrusions without easily running away or breaking.
[0054] The diameter of the protrusions is 3 mm, and the distance between the protrusions is between 3 mm and 6 mm, forming surface tension.
[0055] In addition, Figure 2 , Figure 3 The other side of the protection tube 30 also has a flange to prevent excessive water droplets from flowing into the replenishing device.
[0056] Specifically, the principle of the utility model is that the raised structure of the glass tube effectively reduces the risk of water vapor condensing at the bottom of the tube by providing additional surface area. In a high humidity environment, water vapor is easy to condense on the cooling surface, especially at the bottom of the glass tube. The presence of the protrusion increases the surface area, so that water vapor cannot be easily deposited, thereby reducing the chance of causing short circuits and other problems. When a voltage sag occurs, the surrounding temperature may drop, causing water vapor to condense on the surface of the compensation device, which may cause a short circuit problem. The presence of the raised structure of the glass tube prevents water vapor from condensing along the bottom of the tube because these protrusions provide additional surface area for the water vapor to disperse and evaporate.
[0057] The solution in the embodiment can be used to improve products in existing power grids. By placing the equipment in the embodiment in areas with unstable power in the power grid, it can provide fault protection for traditional power grids in areas with poor power and high humidity.
Claims
1. A protection device for resisting voltage sag, comprising a compensation device, characterized in that: The compensation device comprises a first fuse, a thyristor rectifier and a second fuse connected in series in sequence; the input end of the first fuse is used to connect to the access end of the mains, and the output end of the second fuse is used to connect to the electrical equipment; and further comprises an energy storage device and a conversion device used to convert direct current into alternating current electric energy connected in series in sequence; the compensation device is connected to an outgoing line (10) and an incoming line (20); a protective tube (30) is respectively arranged outside the connection between the compensation device and the outgoing line (10) and the incoming line (20); the protective tube (30) is arranged between the access end of the mains and the compensation device, and / or between the electrical equipment and the compensation device; the inner wall of the protective tube (30) is provided with a protrusion, and the protrusion is used to prevent water droplets from dripping; Wherein, gaskets (31) are respectively provided at both ends of the protection tube (30).
2. A voltage sag protection device according to claim 1, characterized in that: The protection tube (30) is made of transparent material.
3. The protection device for resisting voltage sag according to claim 2, characterized in that: The protection tube (30) is made of insulating material, and the inner surface is coated with an oil layer.
4. The protection device for resisting voltage sag according to claim 3 is characterized in that: The protective tube (30) is respectively sleeved on the connection between the compensation device and the outgoing line (10) and the incoming line (20).
5. The protection device for resisting voltage sag according to claim 4, characterized in that: The protrusion is hemispherical.
6. The protection device for resisting voltage sag according to claim 4, characterized in that: The protrusion is conical.
7. The protection device for resisting voltage sag according to claim 6, characterized in that: The distances between each of the protrusions are distributed at equal intervals.
8. The protection device for resisting voltage sag according to claim 7, characterized in that: The gasket (31) having a sealing function is annular and is located between the protection tube (30) and the outlet line (10) or the inlet line (20).
9. The protection device for resisting voltage sag according to claim 8, characterized in that: The gasket (31) is made of polytetrafluoroethylene or rubber.