Voltage transformer protection device

Abstract

The utility model provides a voltage transformer protection device which comprises a base, a first protection cover is arranged on the upper surface of the base, a second protection cover is inserted into the upper side of the first protection cover, first insertion blocks are arranged on the left side, the right side and the rear side of the second protection cover, and first insertion rings are arranged on the left side, the right side and the rear side of the first protection cover. The left side and the right side of the second protection cover are each provided with a plurality of ventilation openings which are vertically and evenly distributed, the upper sides of the ventilation openings are each provided with an inclined plate, the inner walls of the left side and the right side of the second protection cover are each provided with a filter screen, and the second protection cover is further provided with an auxiliary heat dissipation module used for assisting heat dissipation of the voltage transformer. According to the voltage transformer protection device, the rotating frame drives the draught fan to swing continuously in the operation process, air cooling can be rapidly carried out on the voltage transformer without dead corners, and the voltage transformer is made to be at the proper working temperature.

Description

Technical Field

[0001] The utility model belongs to the technical field of voltage transformers, and particularly relates to a voltage transformer protection device. Background Art

[0002] Voltage transformer is a commonly used electrical equipment in power system, and its main function is to convert high voltage into low voltage in proportion, so as to safely measure, monitor, protect and control high voltage electrical system. The existing voltage transformer protection device installs the voltage transformer in a two-stage protective cover, and the protective cover protects the outer side of the voltage transformer. The heat dissipation of the voltage transformer is ensured through the heat dissipation port on the voltage transformer, so as to protect the voltage transformer. However, in actual use, since the voltage transformer works in a small space, the heat generated by the work may cause the voltage transformer to be damaged.

[0003] For example, the utility model with announcement number CN213025784U discloses a voltage transformer protection device, including a bottom plate, a first outer cover abutting against the bottom plate, a second outer cover abutting against the bottom plate, two first connecting ears and two second connecting ears are fixedly connected to the outer walls of the first outer cover and the second outer cover respectively, the two first connecting ears are respectively arranged opposite to the two second connecting ears, the first connecting ears and the second connecting ears are fixedly connected to the opposite sides thereof, the outer wall of the first outer cover is provided with a rectangular groove located outside the plurality of heat dissipation holes, and the upper cover of the first outer cover is provided with a plurality of heat dissipation holes located outside the plurality of heat dissipation holes. The dustproof net outside the heat hole, the dustproof net part is located in the rectangular groove, and a rectangular pressure frame is installed in the rectangular groove to resist the dustproof net. In the technical solution of this patent, the outside of the voltage transformer is protected by the cooperation of the first outer cover and the second outer cover, and the heat dissipation is ensured by the cooperation of the heat dissipation hole and the dustproof net to ensure the normal operation of the voltage transformer. However, in actual use, the voltage transformer will generate a lot of heat after long-term use. Since the voltage transformer works in a smaller space, the voltage transformer and its surrounding temperature are high, which may cause damage to the voltage transformer. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a voltage transformer protection device, so that the rotating frame drives the fan to swing continuously during operation, and the voltage transformer can be quickly and without dead ends to cool the voltage transformer at a suitable working temperature.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a voltage transformer protection device, including a base, a first protective cover is arranged on the upper surface of the base, a second protective cover is plugged into the upper side of the first protective cover, plug blocks 1 are arranged on the left and right sides and the rear side of the second protective cover, plug rings 1 are arranged on the left and right sides and the rear side of the first protective cover, the plug blocks 1 are respectively plugged into the adjacent plug rings 1, a plurality of vertically evenly distributed vents are arranged on the left and right sides of the second protective cover, and inclined plates are arranged on the upper sides of the vents. The inner walls on both sides of the left and right sides of the protective cover are provided with filter screens, and the second protective cover is also provided with an auxiliary heat dissipation module for assisting the heat dissipation of the voltage transformer; a plug-in block 2 is provided on the front side of the second protective cover, and a plug-in ring 2 is provided on the front side of the first protective cover, and the plug-in block 2 is plugged into the plug-in ring 2, and a locking block 1 is provided on the right side of the plug-in block 2, and a pull handle is provided on the right side of the plug-in ring 2 for sliding, and a locking block 2 cooperating with the locking block 1 is provided on the left side of the pull handle, and a reset spring is provided between the locking block 2 and the right inner wall of the plug-in ring 2, and the reset spring is sleeved on the outer side surface of the left side of the pull handle.

[0006] As a further improvement of the utility model, the auxiliary heat dissipation module includes a mounting plate arranged on the upper side of the interior of the second protective cover, two front-to-back symmetrically distributed supports are arranged on the left and right sides of the mounting plate, a rotating frame is arranged between the two adjacent front and rear supports through a rotating shaft, four evenly distributed fans are arranged on the rotating frame, and an electric control unit for driving the fan to swing is also arranged on the second protective cover; the electric control unit includes a drive plate fixedly sleeved on the front and rear ends of the outer arc surface of the rotating shaft, two front-to-back symmetrically distributed guide rails are arranged on the upper side of the interior of the second protective cover, two left-to-right symmetrically distributed sliders are slidably arranged on the outer arc surfaces of the two guide rails, and push-pull rods are rotatably arranged on the lower ends of the sliders, and the ends of the push-pull rods away from the sliders are respectively rotatably connected to the adjacent drive plates, and a driving assembly for driving the slider to move is also arranged on the second protective cover; the driving assembly includes two front-to-back symmetrically distributed bidirectional screws rotatably arranged on the upper side of the interior of the second protective cover, the sliders are respectively threadedly connected to the adjacent bidirectional screws, and two front-to-back symmetrically distributed motors are arranged on the left side of the second protective cover, and the output shafts of the motors are respectively fixed to the adjacent bidirectional screws through couplings.

[0007] As a further improvement of the utility model, a temperature sensor is arranged on the right side of the rear inner wall of the second protective cover, a control panel is arranged in the middle of the rear inner wall of the second protective cover, and the fan, motor and temperature sensor are all electrically connected to the control panel.

[0008] As a further improvement of the utility model, sealing rings are provided at the edge of the top end of the first protective cover and the edge of the bottom end of the second protective cover.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] First, when the second protective cover is inserted into the first protective cover, when the plug block 2 is inserted into the plug ring 2, sliding occurs between the locking block 2 and the locking block 1, so that the locking block 1 drives the locking block 2 to move to the right and the reset spring is compressed. When the second protective cover is fully inserted into the first protective cover, the locking block 2 is reset to the left under the action of the rebound force of the reset spring, and the locking block 1 is positioned, thereby realizing the quick connection and fixation between the second protective cover and the first protective cover.

[0011] Secondly, the temperature of the internal space formed by the second protective cover and the first protective cover is detected by a temperature sensor. The fan draws external air into the second protective cover from the vent and blows it toward the voltage transformer installed on the first protective cover. Under the action of the mounting plate, the fans on both sides blow obliquely toward the voltage transformer, which can quickly and efficiently cool down the voltage transformer.

[0012] Thirdly, the output shafts of the two motors respectively drive the bidirectional screws connected thereto to rotate in a forward and reverse cycle, so that the slider drives the driving plate to rotate through the push-pull rod, and the driving plate drives the rotating frame to swing back and forth continuously through the rotating shaft, so that the rotating frame drives the fan to swing continuously during operation, and the voltage transformer can be quickly and without dead ends for air cooling, so that the voltage transformer is at a suitable working temperature.

[0013] Fourthly, the joint between the first protective cover and the second protective cover is sealed by sealing rings at the edge of the top end of the first protective cover and the edge of the bottom end of the second protective cover, which can effectively prevent external dust from entering and affecting the operation of the voltage transformer during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal plane structure of the utility model.

[0019] In the figure: 101, base; 102, first protective cover; 103, second protective cover; 104, plug ring one; 105, plug block one; 106, vent; 107, inclined plate; 108, plug block two; 109, plug ring two; 110, locking block one; 111, pull handle; 112, return spring; 113, filter; 201, mounting plate; 202, support; 203, rotating shaft; 204, rotating frame; 205, fan; 206, drive plate; 207, guide rail; 208, slider; 209, push-pull rod; 210, two-way screw; 211, motor; 301, temperature sensor; 302, control panel. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] like Figure 1 , 2 As shown in , 4, it includes a base 101, a first protective cover 102 is provided on the upper surface of the base 101, a second protective cover 103 is plugged into the upper side of the first protective cover 102, plug blocks 105 are provided on the left and right sides and the rear side of the second protective cover 103, plug rings 104 are provided on the left and right sides and the rear side of the first protective cover 102, and the plug blocks 105 are respectively plugged into the adjacent plug rings 104, a plurality of vertically uniformly distributed vents 106 are provided on the left and right sides of the second protective cover 103, inclined plates 107 are provided on the upper sides of the vents 106, filters 113 are provided on the inner walls of the left and right sides of the second protective cover 103, and an auxiliary heat dissipation module for assisting the heat dissipation of the voltage transformer is also provided on the second protective cover 103.

[0022] like Figure 1 , 2 As shown in Figure 4, a plug block 108 is provided on the front side of the second protective cover 103, and a plug ring 109 is provided on the front side of the first protective cover 102. The plug block 108 is plugged into the plug ring 109, a locking block 110 is provided on the right side of the plug block 108, a pull handle 111 is slidably provided on the right side of the plug ring 109, a locking block 2 cooperating with the locking block 110 is provided on the left side of the pull handle 111, a reset spring 112 is provided between the locking block 2 and the right inner wall of the plug ring 109, and the reset spring 112 is sleeved on the outer side surface of the left side of the pull handle 111.

[0023] like Figure 2 , 34, the auxiliary heat dissipation module includes a mounting plate 201 arranged on the upper side of the interior of the second protective cover 103, two supports 202 symmetrically distributed front and back are arranged on the left and right sides of the mounting plate 201, a rotating frame 204 is rotatably arranged between the two front and rear adjacent supports 202 through the rotating shaft 203, four evenly distributed fans 205 are arranged on the rotating frame 204, and the second protective cover 103 is also provided with an electric control unit for driving the fans 205 to swing; the electric control unit includes a driving plate 206 fixedly sleeved on the front and rear ends of the outer arc surface of the rotating shaft 203, and two guide rails 207 symmetrically distributed front and back are arranged on the upper side of the interior of the second protective cover 103, and the outer arc surfaces of the two guide rails 207 are Two sliding blocks 208 symmetrically distributed on the left and right are slidingly arranged, and push-pull rods 209 are rotatably arranged at the lower ends of the sliding blocks 208. The ends of the push-pull rods 209 away from the sliding blocks 208 are rotatably connected to the adjacent driving plates 206. The second protective cover 103 is also provided with a driving component for driving the sliding blocks 208 to move; the driving component includes two bidirectional screw rods 210 symmetrically distributed front and back and rotatably arranged on the upper side of the interior of the second protective cover 103, and the sliding blocks 208 are respectively threadedly connected to the adjacent bidirectional screw rods 210. Two motors 211 symmetrically distributed front and back are arranged on the left side of the second protective cover 103, and the output shafts of the motors 211 are respectively fixed to the adjacent bidirectional screw rods 210 through couplings.

[0024] like Figure 4 As shown, a temperature sensor 301 is provided on the right side of the rear inner wall of the second protective cover 103 , a control panel 302 is provided in the middle of the rear inner wall of the second protective cover 103 , and the fan 205 , the motor 211 and the temperature sensor 301 are all electrically connected to the control panel 302 .

[0025] During use, the voltage transformer to be protected is installed at the inner bottom end of the first protective cover 102, and then the second protective cover 103 is plugged into the first protective cover 102. At this time, the plug-in block 105 is plugged into the plug-in ring 104. During the process of the second protective cover 103 being plugged into the first protective cover 102, when the plug-in block 2 108 is inserted into the plug-in ring 2 109, sliding occurs between the locking block 2 and the locking block 110, so that the locking block 110 drives the locking block 2 to move to the right and the reset spring 112 is compressed. When the second protective cover 103 is fully plugged into the first protective cover 102, the locking block 2 is reset to the left under the action of the rebound force of the reset spring 112, and the locking block 110 is locked, so as to realize the quick connection and fixation between the second protective cover 103 and the first protective cover 102; in the actual use process, the temperature sensor 301 detects the temperature of the internal space composed of the second protective cover 103 and the first protective cover 102. When the temperature transmitted to the control panel 302 by the temperature sensor 301 is higher than the temperature of the electric When the voltage transformer is at the normal operating temperature, the control panel 302 drives the fan 205 and the motor 211 to operate, so that the fan 205 sucks the external air from the vent 106 into the second protective cover 103 and blows it toward the voltage transformer installed on the first protective cover 102. Under the action of the mounting plate 201, the fans 205 on both sides blow obliquely toward the voltage transformer, which can quickly and efficiently cool the voltage transformer. During the operation of the fan 205, the output shafts of the two motors 211 respectively drive the motors 211 connected thereto to cool the voltage transformer. The connected bidirectional screw rod 210 rotates in a forward and reverse cycle, so that the sliders 208 on the left and right sides continuously move toward each other or away from each other, so that the sliders 208 drive the driving plate 206 to rotate through the push-pull rod 209, and the driving plate 206 drives the rotating frame 204 to swing back and forth continuously through the rotating shaft 203, so that the rotating frame 204 drives the fan 205 to swing continuously during operation, and the voltage transformer can be quickly cooled by air without dead angles, so that the voltage transformer is at a suitable working temperature.

[0026] According to another embodiment of the present invention, Figure 1 , 2 As shown in Figures 4 and 5, sealing rings are provided at the edge of the top end of the first protective cover 102 and the edge of the bottom end of the second protective cover 103. In daily use, the sealing rings at the edge of the top end of the first protective cover 102 and the edge of the bottom end of the second protective cover 103 are used to seal the joint between the first protective cover 102 and the second protective cover 103, which can effectively prevent external dust from entering and affecting the operation of the voltage transformer.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A voltage transformer protection device, comprising a base (101), wherein a first protective cover (102) is provided on the upper surface of the base (101), characterized in that: The upper side of the first protective cover (102) is plugged with a second protective cover (103); the left and right sides and the rear side of the second protective cover (103) are provided with plug-in blocks (105); the left and right sides and the rear side of the first protective cover (102) are provided with plug-in rings (104); the plug-in blocks (105) are respectively plugged with adjacent plug-in rings (104); the left and right sides of the second protective cover (103) are provided with a plurality of vertically evenly distributed vents (106); the upper sides of the vents (106) are provided with inclined plates (107); the left and right inner walls of the second protective cover (103) are provided with filter screens (113); and the second protective cover (103) is also provided with an auxiliary heat dissipation module for assisting the heat dissipation of the voltage transformer.

2. The voltage transformer protection device according to claim 1, characterized in that: The front side of the second protective cover (103) is provided with an insert block 2 (108), the front side of the first protective cover (102) is provided with an insert ring 2 (109), the insert block 2 (108) is plugged with the insert ring 2 (109), a locking block 1 (110) is provided on the right side of the insert block 2 (108), a pull handle (111) is slidably provided on the right side of the insert ring 2 (109), a locking block 2 cooperating with the locking block 1 (110) is provided on the left side of the pull handle (111), a reset spring (112) is provided between the locking block 2 and the right inner wall of the insert ring 2 (109), and the reset spring (112) is sleeved on the outer side surface of the left side of the pull handle (111).

3. The voltage transformer protection device according to claim 1, characterized in that: The auxiliary heat dissipation module comprises a mounting plate (201) arranged on the upper side of the interior of the second protective cover (103); two supports (202) symmetrically distributed front and rear are arranged on the left and right sides of the mounting plate (201); a rotating frame (204) is rotatably arranged between two front and rear adjacent supports (202) via a rotating shaft (203); four evenly distributed fans (205) are arranged on the rotating frame (204); and an electric control unit for driving the fans (205) to swing is also arranged on the second protective cover (103).

4. The voltage transformer protection device according to claim 3, characterized in that: The electric control unit comprises a driving plate (206) fixedly mounted on the front and rear ends of the outer arc surface of the rotating shaft (203); two guide rails (207) symmetrically distributed front to back are arranged on the inner upper side of the second protective cover (103); two sliders (208) symmetrically distributed left to right are slidably arranged on the outer arc surfaces of the two guide rails (207); push-pull rods (209) are rotatably arranged at the lower ends of the sliders (208); the ends of the push-pull rods (209) away from the sliders (208) are rotatably connected to the adjacent driving plates (206); and a driving component for driving the sliders (208) to move is also arranged on the second protective cover (103).

5. The voltage transformer protection device according to claim 4, characterized in that: The driving assembly comprises two bidirectional screw rods (210) rotatably arranged on the upper side of the second protective cover (103) and symmetrically distributed in the front and back directions; the sliders (208) are respectively threadedly connected to the adjacent bidirectional screw rods (210); two motors (211) symmetrically distributed in the front and back directions are arranged on the left side of the second protective cover (103); the output shafts of the motors (211) are respectively fixed to the adjacent bidirectional screw rods (210) via couplings.

6. The voltage transformer protection device according to claim 5, characterized in that: A temperature sensor (301) is arranged on the right side of the rear inner wall of the second protective cover (103), a control panel (302) is arranged in the middle of the rear inner wall of the second protective cover (103), and the fan (205), the motor (211) and the temperature sensor (301) are all electrically connected to the control panel (302).

7. The voltage transformer protection device according to claim 1, characterized in that: Sealing rings are provided at the edge of the top end of the first protective cover (102) and the edge of the bottom end of the second protective cover (103).

Images