Power supply overvoltage protection device for distribution network automation equipment

Abstract

The utility model discloses a power supply overvoltage protection device for distribution network automation equipment, which belongs to the technical field of power grids and comprises a power supply protection device. According to the power supply overvoltage protection device, through the arrangement of the heat dissipation and dust prevention mechanism, the service life of the power supply overvoltage protection device is prolonged, when the power supply overvoltage protection device is used, the power supply protection device can dissipate a large amount of heat, ventilation is carried out through the ventilation window, and the power supply overvoltage protection device is very convenient to use. The temperature sensor senses the internal temperature, when the temperature is too high, the temperature sensor sends out a signal, the single chip microcomputer controls the fan to work, the fan blows air and is matched with the cooling fins to dissipate heat, and therefore the heat dissipation effect is greatly improved, and when the wiring hole is not used, the connecting plate is rotated downwards, and under the action of the movable block, the connecting plate can be rotated downwards, so that the heat dissipation effect is greatly improved. And the rubber plug on the connecting plate is inserted into the wiring hole, so that dust is prevented from entering the wiring hole to damage the device.

Description

Technical Field

[0001] The utility model relates to the technical field of power grids. More specifically, the utility model relates to an overvoltage protection device for the power supply of distribution network automation equipment. Background Technique

[0002] In the power system, it generally refers to the facilities and equipment that connect power generation and power consumption; it belongs to the intermediate link of transmitting and distributing electric energy, and it mainly consists of power transmission lines, substations, distribution substations and distribution lines connected into a network; usually, the unified whole composed of power transmission, transformation, distribution equipment and the corresponding auxiliary systems that connects power generation and power consumption is called the power grid, abbreviated as the grid; in the grid, there is usually an overvoltage protection device for the power supply. The so-called overvoltage protection means that when the voltage of the protected line exceeds the predetermined maximum value, a protection method that disconnects the power supply or reduces the voltage of the controlled equipment.

[0003] After retrieval, the existing patent (application number: 202123345364.8) discloses an overvoltage protection device for the power supply of distribution network automation equipment, including a power protector and a fixed rod. By setting the fixed rod, the connection mechanism and the operation mechanism to cooperate with each other, after the operation mechanism drives the connection mechanism to move to a suitable position, the power protector is butted with the fixed rod, and the operation mechanism is released. While the connection mechanism resets, it will fix the power protector, completing the assembly of the power protector, and solving the problem that when assembling the power protector and the power equipment, it is necessary to butt with the sliding rod by means of clamping, and the power protector is directly clamped on the surface of the sliding rod and there is no fixed relationship between the two, and it is very easy to fall off. If it is necessary to fix the power protector, it is necessary to open multiple threaded holes on the surface of the sliding rod and the power protector and fix them with threaded rods and nuts, and the process is extremely cumbersome and not convenient for quickly assembling the power protector; the inventor found the following problems in the process of realizing the present utility model:

[0004] When the existing overvoltage protection device for the power supply of distribution network automation equipment is used later, its installation method is too complex and inconvenient. At the same time, the overvoltage protection device for the power supply usually needs to work under high voltage, and long-term use will cause it to heat up, resulting in shortening the service life of the overvoltage protection device for the power supply;

[0005] Therefore, an overvoltage protection device for the power supply of distribution network automation equipment is proposed for the above problems. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides an overvoltage protection device for the power supply of distribution network automation equipment to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solution: A power overvoltage protection device for a distribution network automation device, including a power protection device;

[0008] Both ends of the power protection device are fixedly connected with a rotating shaft, the surface of the rotating shaft is snap-connected with a movable block, the outer end of the movable block is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with a rubber plug, a wiring hole is opened below the connecting plate, a ventilation window is opened on one side inside the power protection device, a heat sink is installed and connected inside the ventilation window, a fan is installed and connected above the ventilation window, a temperature sensor is installed and connected on the other side inside the power protection device, and a single-chip microcomputer is embedded and connected above the power protection device.

[0009] Further, the rear end of the power protection device is fixedly connected with a mounting seat, a threaded groove is opened at the top of the mounting seat, a threaded rod is embedded and connected inside the threaded groove, and a rotating block is fixedly installed at the top of the threaded rod.

[0010] Further, the bottom of the threaded rod is fixedly connected with a rubber cushion block, the bottom of the rotating block is fixedly connected with a rubber ring, and a display screen is fixedly installed at the front end of the power protection device.

[0011] Further, there are five rubber plugs at each of the upper and lower ends of the rubber plug, and the five rubber plugs are arranged in sequence from left to right and are all circular.

[0012] Further, the fan, the single-chip microcomputer and the temperature sensor cooperate with each other.

[0013] Further, the ventilation window is composed of multiple heat sinks, and at the same time, the multiple heat sinks are equidistantly distributed in the ventilation window.

[0014] Further, the connecting plate is connected to the rotating shaft by being fixed to the movable block.

[0015] Further, the threaded rod and the threaded groove are in threaded engagement, and the bottom diameter of the threaded groove is larger than the bottom diameter of the threaded rod.

[0016] The technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the overvoltage protection device for the power supply of this distribution network automation device improves the service life of the overvoltage protection device for the power supply by setting up a heat dissipation and dust prevention mechanism. During use, the power protection device will emit a large amount of heat, ventilate through the ventilation window, and the internal temperature is sensed by the temperature sensor. When the temperature is too high, the temperature sensor sends a signal, causing the single-chip microcomputer to control the fan to work. The fan blows air and cooperates with the heat sink for heat dissipation, thus greatly improving the heat dissipation effect. When the wiring hole is not in use, turn the connecting plate downward. Under the action of the movable block, the rubber plug on the connecting plate is inserted into the wiring hole to prevent dust from entering the inside and damaging the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0019] Figure 2 It is a schematic side structural diagram of the whole of the present utility model.

[0020] Figure 3 It is a schematic structural diagram of the connecting plate of the present utility model.

[0021] Figure 4 It is a schematic installation structural diagram of the whole of the present utility model.

[0022] Reference numerals are: 1, power protection device; 2, connecting plate; 3, rubber plug; 4, rotating shaft; 5, movable block; 6, wiring hole; 7, fan; 8, ventilation window; 9, heat sink; 10, single-chip microcomputer; 11, temperature sensor; 12, mounting seat; 13, threaded groove; 14, rotating block; 15, threaded rod; 16, rubber cushion block; 17, rubber ring; 18, display screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As shown in the attached Figures 1-4 An overvoltage protection device for the power supply of a distribution network automation device, including a power protection device 1;

[0026] Both ends of the power protection device 1 are fixedly connected with a rotating shaft 4. A movable block 5 is snap-connected to the surface of the rotating shaft 4. The outer end of the movable block 5 is fixedly connected with a connecting plate 2. A rubber plug 3 is fixedly connected to the surface of the connecting plate 2. A wiring hole 6 is opened below the connecting plate 2. A ventilation window 8 is opened on one side inside the power protection device 1. A heat sink 9 is installed and connected inside the ventilation window 8. A fan 7 is installed and connected above the ventilation window 8. A temperature sensor 11 is installed and connected on the other side inside the power protection device 1. A single-chip microcomputer 10 is embedded and connected above the power protection device 1.

[0027] Among them: When in use, the power protection device 1 will emit a large amount of heat, ventilate through the ventilation window 8, and the temperature sensor 11 senses the internal temperature. When the temperature is too high, the temperature sensor 11 emits a signal, causing the single-chip microcomputer 10 to control the fan 7 to work, blow air through the fan 7, and cooperate with the heat sink 9 for heat dissipation, thus greatly improving the heat dissipation effect. When the wiring hole 6 is not in use, rotate the connecting plate 2 downward. Under the action of the movable block 5, insert the rubber plug 3 on the connecting plate 2 into the wiring hole 6, thereby preventing dust from entering its interior and damaging the device.

[0028] Embodiment 2

[0029] On the basis of Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods. See the following description for details:

[0030] As Figure 1 shown, as a preferred implementation; an installation seat 12 is fixedly connected to the rear end of the power protection device 1. A threaded groove 13 is opened at the top of the installation seat 12. A threaded rod 15 is embedded and connected inside the threaded groove 13. A rotating block 14 is fixedly installed at the top of the threaded rod 15. Further, by inserting the threaded rod 15 into the threaded groove 13 and rotating the rotating block 14, the rubber cushion block 16 at the other end of the threaded rod 15 contacts the device, thereby fixing the power protection device 1.

[0031] As Figure 1 shown, as a preferred implementation; the bottom of the threaded rod 15 is fixedly connected with a rubber cushion block 16, and the bottom of the rotating block 14 is fixedly connected with a rubber ring 17. A display screen 18 is fixedly installed at the front end of the power protection device 1. Further, the rubber ring 17 can strengthen the installation between the power protection device 1 and the device.

[0032] The working process of the present utility model is as follows:

[0033] For this kind of over-voltage protection device for the power supply of distribution network automation equipment, during use, a large amount of heat will be dissipated by the power protection device 1. Ventilation is carried out through the ventilation window 8, and the internal temperature is sensed by the temperature sensor 11. When the temperature is too high, the temperature sensor 11 sends a signal, causing the single-chip microcomputer 10 to control the fan 7 to work. The fan 7 blows air and cooperates with the heat sink 9 for heat dissipation, thus greatly improving the heat dissipation effect. When the wiring hole 6 is not in use, turn the connecting plate 2 downward. Under the action of the movable block 5, the rubber plug 3 on the connecting plate 2 is inserted into the wiring hole 6 to prevent dust from entering its interior and damaging the device. This is the working process and principle of the device.

[0034] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal communication of two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0035] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0036] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A power overvoltage protection device for distribution network automation equipment, including a power protection device (1). It is characterized in that: Both ends of the power protection device (1) are fixedly connected with a rotating shaft (4). The surface of the rotating shaft (4) is snap-connected with a movable block (5). The outer end of the movable block (5) is fixedly connected with a connecting plate (2). The surface of the connecting plate (2) is fixedly connected with a rubber plug (3). A wiring hole (6) is opened below the connecting plate (2). On one side inside the power protection device (1), a ventilation window (8) is opened. Inside the ventilation window (8), a heat sink (9) is installed and connected. Above the ventilation window (8), a fan (7) is installed and connected. On the other side inside the power protection device (1), a temperature sensor (11) is installed and connected. Above the power protection device (1), a single-chip microcomputer (10) is embedded and connected.

2. The overvoltage protection device for the power supply of the distribution network automation equipment according to claim 1, characterized in that: The rear end of the power protection device (1) is fixedly connected with a mounting seat (12). A threaded groove (13) is opened at the top of the mounting seat (12). Inside the threaded groove (13), a threaded rod (15) is embedded and connected. The top of the threaded rod (15) is fixedly installed with a rotating block (14).

3. The overvoltage protection device for the power supply of the distribution network automation equipment according to claim 2, characterized in that: The bottom of the threaded rod (15) is fixedly connected with a rubber cushion block (16). The bottom of the rotating block (14) is fixedly connected with a rubber ring (17). The front end of the power protection device (1) is fixedly installed with a display screen (18).

4. The overvoltage protection device for the power supply of a distribution network automation device according to claim 1, characterized in that: There are five rubber plugs (3) respectively at the upper and lower ends of the rubber plug (3). The five rubber plugs (3) are arranged in sequence from left to right and are all circular.

5. The overvoltage protection device for the power supply of a distribution network automation device according to claim 1, characterized in that: The fan (7), the single-chip microcomputer (10) and the temperature sensor (11) cooperate with each other.

6. The power overvoltage protection device for a distribution network automation device according to claim 1, characterized in that: The ventilation window (8) is composed of multiple heat sinks (9). At the same time, the multiple heat sinks (9) are equidistantly distributed inside the ventilation window (8).

7. The overvoltage protection device for the power supply of the distribution network automation equipment according to claim 1, characterized in that: The connecting plate (2) is connected to the rotating shaft (4) by being fixed to the movable block (5).

8. A power overvoltage protection device for a distribution network automation device according to claim 2, characterized in that: The threaded rod (15) and the threaded groove (13) are in threaded engagement, and the bottom diameter of the threaded groove (13) is larger than the bottom diameter of the threaded rod (15).

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