High-power high-voltage frequency converter protection device
By designing protective case and sunshade device, the collision damage and direct sunlight problems of the inverter body during outdoor use are solved, and the safety and practicality of the inverter are improved.
Patent Information
- Application Number
- CN202421817465.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The inverter body is easily damaged by collision when used outdoors, which affects normal use.
A high-power high-voltage inverter protection device is designed, including a protective case and a sunshade device. The protective case is composed of a rotating block, a rotating rod and a protective plate. The sunshade device realizes protection and sunshade functions through a fixed plate and a sunshade.
It effectively prevents the inverter body from being damaged outdoors by collision, avoids temperature increases caused by direct sunlight, and improves the safety and practicality of the equipment.
Smart Images
Figure CN223168222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high - voltage frequency converters, in particular to a protection device for high - power high - voltage frequency converters. Background Art
[0002] A frequency converter is a power control device that applies frequency conversion technology and micro - electronics technology to control an AC motor by changing the working power frequency of the motor. The frequency converter mainly consists of a rectifier (AC to DC), a filter, an inverter (DC to AC), a braking unit, a drive unit, a detection unit, a micro - processing unit, etc.
[0003] A Chinese patent of Chinese Patent Application CN202122080258.5 discloses a high - voltage frequency converter. The key points of its technical solution are: when the filter screen is blocked, the cooling fan cannot normally draw in the cooling air flow, causing the left side of the induction plate to separate from the outside of the filter screen, driving the moving contact and the fixed contact to contact each other, connecting the circuit, and enabling the alarm to give an alarm prompt to remind the staff to replace and clean the filter screen.
[0004] In view of the above - mentioned and existing related technologies, the inventor believes that the following defects often exist: when the frequency converter body is used outdoors, it is collided, resulting in damage to the frequency converter body and the inability of the frequency converter body to be used normally. Therefore, a protection device for high - power high - voltage frequency converters is proposed for the above - mentioned problems. Summary of the Utility Model
[0005] The purpose of the utility model is to solve the defect that when the frequency converter body is used outdoors, it is collided, resulting in damage to the frequency converter body and the inability of the frequency converter body to be used normally in the prior art, and to propose a protection device for high - power high - voltage frequency converters.
[0006] To achieve the above - mentioned purpose, the utility model adopts the following technical scheme: A protection device for high - power high - voltage frequency converters includes a frequency converter body. A base is installed on the lower surface of the frequency converter body. An auxiliary device is provided on the surface of the base. The auxiliary device includes a protective shell. The protective shell is fixedly connected to the surface of the base. Two rotating blocks are fixedly connected to the surface of the protective shell. A rotating rod is rotatably connected to one side of the two rotating blocks close to each other. A protective plate is fixedly connected to the arc surface of the rotating rod. A handle is fixedly connected to the surface of the protective plate.
[0007] The effects achieved by the above - mentioned components are as follows: By setting the auxiliary device, the effect of protecting the frequency converter body can be achieved, avoiding the situation that when the frequency converter body is used outdoors, it is collided, resulting in damage to the frequency converter body and the inability of the frequency converter body to be used normally, and improving the safety of the equipment.
[0008] Preferably, an adapter rod is rotatably connected to the surface of the protective shell. A limiting plate is fixedly connected to one end of the adapter rod away from the protective shell. A U-shaped plate is fixedly connected to the surface of the protection plate.
[0009] The effect achieved by the above components is that the limiting plate can fix the protection plate, avoiding the situation that the protective shell shakes due to collision, resulting in the passive opening of the protection plate and the reduction of the protection effect of the protection plate.
[0010] Preferably, a torsion spring is sleeved on the arc surface of the adapter rod. The two ends of the torsion spring are respectively fixedly connected to the limiting plate and the protective shell.
[0011] The effect achieved by the above components is that the torsion of the torsion spring can automatically bring back the limiting plate. At the same time, it restricts the rotation of the limiting plate driving the adapter rod, preventing the limiting plate from detaching from the surface of the U-shaped plate and causing the situation that the limiting plate releases the fixation of the U-shaped plate.
[0012] Preferably, a fixing block is fixedly connected to the surface of the protective shell. A limiting rod is slidably inserted into the fixing block. A limiting block is fixedly connected to one end of the limiting rod. The limiting block is slidably connected to the surface of the protective shell.
[0013] The effect achieved by the above components is that the limiting block can limit the rotation of the limiting plate, avoiding the situation that the limiting plate rotates when the staff maintains the inverter body, thus affecting the staff's maintenance of the inverter body.
[0014] Preferably, a sunshade device is provided on the surface of the inverter body. The sunshade device includes a fixing plate fixedly connected to the surface of the inverter body. A round rod is rotatably connected to the surface of the fixing plate. A sunshade plate is fixedly connected to the arc surface of the round rod.
[0015] The effect achieved by the above components is that by setting the sunshade device, the effect of shading the inverter body is achieved, avoiding the situation that the sun shines directly on the surface of the inverter body, the temperature inside the inverter body is too high, resulting in the accelerated aging of the electronic components inside the inverter body and the reduction of the service life of the inverter body, and improving the practicability of the equipment.
[0016] Preferably, two connecting rods are fixedly connected to the surface of the fixing plate. A connecting plate is fixedly connected to one end of the connecting rod away from the fixing plate. A plug rod is slidably inserted into the connecting plate. Two slots are opened on the surface of the sunshade plate. The size of the plug rod is adapted to the size of the slot of the sunshade plate. An operating block is fixedly connected to one end of the plug rod.
[0017] The effects achieved by the above components are as follows: The insertion rod can fix the sunshade, avoiding the situation where when the wind blows strongly, the sunshade rotates due to the strong wind, causing the sunshade to flip and reducing the sunshade effect.
[0018] Preferably, a spring is sleeved on the arc surface of the insertion rod, and both ends of the spring are fixedly connected to the connecting plate and the operation block respectively.
[0019] The effects achieved by the above components are as follows: The resilience of the spring can automatically insert the insertion rod, and at the same time limit the movement of the operation block driving the insertion rod, improving the stability of the insertion rod during positioning.
[0020] In summary, the beneficial effects of the present utility model are as follows:
[0021] 1. In the present utility model, by providing an auxiliary device, the effect of protecting the frequency converter body can be achieved, avoiding the situation where the frequency converter body is damaged due to collision during outdoor use, resulting in the frequency converter body being unable to be used normally, and improving the safety of the equipment.
[0022] 2. In the present utility model, by providing a sunshade device, the effect of shading the frequency converter body can be achieved, avoiding the situation where the surface of the frequency converter body is directly irradiated by sunlight, the temperature inside the frequency converter body is too high, resulting in the electronic components inside the frequency converter body aging rapidly and reducing the service life of the frequency converter body, and improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0024] Figure 2 is a structural schematic diagram of the protection device in the present utility model;
[0025] Figure 3 is a partial structural schematic diagram of the protection device in the present utility model;
[0026] Figure 4 is in the present utility model Figure 3 is an enlarged view of part A;
[0027] Figure 5 is a structural schematic diagram of the sunshade device in the present utility model;
[0028] Figure 6 is a partial structural schematic diagram of the sunshade device in the present utility model;
[0029] Figure 7 is in the present utility model Figure 6 is an enlarged view of part B.
[0030] Legend: 1. Inverter body; 2. Base; 3. Auxiliary device; 4. Sunshade device; 301. Protective shell; 302. Rotating block; 303. Rotating rod; 304. Protective plate; 305. Connecting rod; 306. Limiting plate; 307. U-shaped plate; 308. Torsion spring; 309. Fixed block; 310. Limiting rod; 311. Limiting block; 312. Handle; 41. Fixed plate; 42. Round rod; 43. Sunshade plate; 44. Connecting rod; 45. Connecting plate; 46. Insert rod; 47. Operating block; 48. Spring. Detailed implementation
[0031] Refer to Figure 1 As shown in the figure, the present utility model provides a technical solution: a protective device for a high-power high-voltage inverter, including an inverter body 1. A base 2 is installed on the lower surface of the inverter body 1. An auxiliary device 3 is provided on the surface of the base 2. By providing the auxiliary device 3, the effect of protecting the inverter body 1 can be achieved, avoiding the inverter body 1 from being collided when used outdoors, resulting in damage to the inverter body 1 and causing the inverter body 1 to not work properly, improving the safety of the device. A sunshade device 4 is provided on the surface of the inverter body 1. By providing the sunshade device 4, the effect of shading the inverter body 1 can be achieved, avoiding direct sunlight on the surface of the inverter body 1, causing the temperature inside the inverter body 1 to be too high, accelerating the aging of the electronic components inside the inverter body 1, and causing the service life of the inverter body 1 to be reduced, improving the practicability of the device.
[0032] Next, specifically describe the specific settings and functions of its auxiliary device 3 and sunshade device 4.
[0033] Refer to Figure 2 、 Figure 3 and Figure 4As shown in the figure, in this embodiment: The auxiliary device 3 includes a protective shell 301, and the protective shell 301 is fixedly connected to the surface of the base 2. Two rotating blocks 302 are fixedly connected to the surface of the protective shell 301. A rotating rod 303 is rotatably connected to one side of the two rotating blocks 302 close to each other. A protective plate 304 is fixedly connected to the arc surface of the rotating rod 303. A handle 312 is fixedly connected to the surface of the protective plate 304. An adapter rod 305 is rotatably connected to the surface of the protective shell 301. A limiting plate 306 is fixedly connected to one end of the adapter rod 305 away from the protective shell 301. A U-shaped plate 307 is fixedly connected to the surface of the protective plate 304. When the staff needs to maintain the frequency converter body 1, the protective plate 304 can be opened, and the limiting plate 306 can be rotated. The limiting plate 306 drives the adapter rod 305 to rotate on the surface of the protective shell 301. When the limiting plate 306 rotates to a suitable position, the limiting plate 306 releases the fixation of the U-shaped plate 307. At this time, the staff can open the protective plate 304 and pull the handle 312. The handle 312 drives the protective plate 304 to rotate. The protective plate 304 drives the rotating rod 303 to rotate on the surface of the rotating block 302 until the protective plate 304 is completely opened. At this time, the staff can maintain the frequency converter body 1. After the maintenance is completed, the handle 312 is moved. The handle 312 drives the protective plate 304 to rotate. When the protective plate 304 is completely closed, the limiting plate 306 is rotated. The limiting plate 306 drives the adapter rod 305 to rotate until the limiting plate 306 rotates to the surface of the U-shaped plate 307. The limiting plate 306 achieves the effect of fixing the protective plate 304, avoiding the situation that the protective shell 301 is shaken by collision, resulting in the passive opening of the protective plate 304 and reducing the protective effect of the protective plate 304. A torsion spring 308 is sleeved on the arc surface of the adapter rod 305. The two ends of the torsion spring 308 are respectively fixedly connected to the limiting plate 306 and the protective shell 301. When the staff needs to open the protective plate 304, the limiting plate 306 is rotated. The limiting plate 306 drives the adapter rod 305 to rotate. When the limiting plate 306 rotates to a suitable position, the staff can open the protective plate 304. When the staff closes the protective plate 304, the torsion of the torsion spring 308 drives the limiting plate 306 to rotate. The limiting plate 306 drives the adapter rod 305 to rotate until the limiting plate 306 rotates to the surface of the U-shaped plate 307. The torsion of the torsion spring 308 achieves the effect of automatically bringing back the limiting plate 306. At the same time, it restricts the rotation of the limiting plate 306 driving the adapter rod 305 to prevent the limiting plate 306 from detaching from the surface of the U-shaped plate 307, resulting in the situation that the limiting plate 306 releases the fixation of the U-shaped plate 307. A fixing block 309 is fixedly connected to the surface of the protective shell 301. A limiting rod 310 is slidably inserted into the fixing block 309. One end of the limiting rod 310 is fixedly connected to a limiting block 311. The limiting block 311 is slidably connected to the surface of the protective shell 301. When the staff needs to open the protective plate 304, the limiting rod 310 is pulled, and the limiting rod 310 slides in the fixing block 309.The limiting rod 310 drives the limiting block 311 to move. When the surface of the limiting block 311 contacts the fixed block 309, the limiting plate 306 is rotated. The limiting plate 306 drives the connecting rod 305 to rotate. When the limiting plate 306 rotates to a suitable position, the limiting rod 310 is moved. The limiting rod 310 drives the limiting block 311 to move. When the limiting block 311 moves back to its original position, the limiting block 311 limits the rotation of the limiting plate 306. At this time, the staff can open the protection plate 304. The limiting block 311 achieves the effect of restricting the rotation of the limiting plate 306, avoiding the situation that when the staff is maintaining the inverter body 1, the limiting plate 306 rotates, which affects the staff's maintenance of the inverter body 1.,
[0034] Refer to Figure 5 、 Figure 6 and Figure 7 As shown in, specifically, the sunshade device 4 includes a fixed plate 41. The fixed plate 41 is fixedly connected to the surface of the inverter body 1. A round rod 42 is rotatably connected to the surface of the fixed plate 41. A sunshade plate 43 is fixedly connected to the arc surface of the round rod 42. Two connecting rods 44 are fixedly connected to the surface of the fixed plate 41. One end of the connecting rod 44 away from the fixed plate 41 is fixedly connected to a connecting plate 45. A plug rod 46 is slidably inserted into the connecting plate 45. Two slots are formed on the surface of the sunshade plate 43. The size of the plug rod 46 is adapted to the size of the slots of the sunshade plate 43. One end of the plug rod 46 is fixedly connected to an operation block 47. When the staff needs to cover the sunshade plate 43 on the surface of the inverter body 1, the operation block 47 is pulled. The operation block 47 drives the plug rod 46 to move. When the plug rod 46 moves to a suitable position, the sunshade plate 43 is rotated. The sunshade plate 43 drives the round rod 42 to rotate on the surface of the fixed plate 41. When the sunshade plate 43 covers directly above the inverter body 1, the plug rod 46 is located directly in front of the slots of the sunshade plate 43. The operation block 47 is pushed. The operation block 47 drives the plug rod 46 to move until the plug rod 46 is inserted into the inner surface of the slots of the sunshade plate 43. The plug rod 46 achieves the effect of fixing the sunshade plate 43, avoiding the situation that when the wind blows, the wind force is too large, the wind blows the sunshade plate 43 to rotate, resulting in the sunshade plate 43 flipping and reducing the sunshade effect of the sunshade plate 43. A spring 48 is sleeved on the arc surface of the plug rod 46. Two ends of the spring 48 are respectively fixedly connected to the connecting plate 45 and the operation block 47. When the staff pulls the operation block 47, the spring 48 is stretched. The operation block 47 drives the plug rod 46 to move. When the plug rod 46 moves to a suitable position, the sunshade plate 43 is rotated. When the sunshade plate 43 rotates to the surface of the inverter body 1, the operation block 47 is released. The resilience of the spring 48 drives the operation block 47 to move. The operation block 47 drives the plug rod 46 to move until the plug rod 46 is inserted into the inner surface of the slots of the sunshade plate 43. The resilience of the spring 48 achieves the effect of automatically inserting the plug rod 46, and at the same time restricts the operation block 47 from driving the plug rod 46 to move, improving the stability of the plug rod 46 during limiting.,
[0035] Working principle: When the staff needs to maintain the frequency converter body 1, the protection plate 304 can be opened, and the limit rod 310 is pulled. The limit rod 310 slides in the fixed block 309, and the limit rod 310 drives the limit block 311 to move. When the surface of the limit block 311 contacts the fixed block 309, the limit plate 306 is rotated. The limit plate 306 drives the connecting rod 305 to rotate on the surface of the protective shell 301. When the limit plate 306 rotates to a suitable position, the fixation of the U-shaped plate 307 by the limit plate 306 is released. The limit rod 310 is moved, and the limit rod 310 drives the limit block 311 to move. When the limit block 311 contacts the surface of the limit plate 306, the limit block 311 limits the limit plate 306. At this time, the staff can open the protection plate 304 and pull the handle 312. The handle 312 drives the protection plate 304 to rotate. The protection plate 304 drives the rotating rod 303 to rotate on the surface of the rotating block 302 until the protection plate 304 is completely opened. At this time, the staff can maintain the frequency converter body 1. After the maintenance is completed, the handle 312 is moved. The handle 312 drives the protection plate 304 to rotate. When the protection plate 304 is completely closed, the limit rod 310 is pulled. The limit rod 310 drives the limit block 311 to move. When the limit block 311 completely disengages from the surface of the limit plate 306, the fixation of the limit plate 306 by the limit block 311 is released. The torsion of the torsion spring 308 drives the limit plate 306 to rotate. The limit plate 306 drives the connecting rod 305 to rotate until the limit plate 306 rotates to the surface of the U-shaped plate 307.
[0036] When the staff needs to cover the sunshade 43 on the surface of the frequency converter body 1, the operation block 47 is pulled, the spring 48 is stretched, and the operation block 47 drives the insertion rod 46 to move. When the insertion rod 46 moves to a suitable position, the sunshade 43 is rotated. The sunshade 43 drives the round rod 42 to rotate on the surface of the fixed plate 41. When the sunshade 43 covers directly above the frequency converter body 1, the insertion rod 46 is located directly in front of the slot of the sunshade 43. The operation block 47 is released, and the resilience of the spring 48 drives the operation block 47 to move. The operation block 47 drives the insertion rod 46 to move until the insertion rod 46 is inserted into the inner surface of the slot of the sunshade 43. When the staff needs to repair the inside of the frequency converter body 1, since the sunshade 43 covers the surface of the frequency converter body 1, it is inconvenient for the staff to repair the frequency converter body 1. At this time, the sunshade 43 can be opened, the operation block 47 is pulled, the spring 48 is stretched, and the operation block 47 drives the insertion rod 46 to move. When the insertion rod 46 completely disengages from the inner surface of the slot of the sunshade 43, the insertion rod 46 releases the fixation of the sunshade 43. The sunshade 43 is rotated until the sunshade 43 is completely opened. The operation block 47 is released, and the resilience of the spring 48 drives the operation block 47 to move. The operation block 47 drives the insertion rod 46 to move until the insertion rod 46 returns to its original position. At this time, the staff can repair the inside of the frequency converter body 1.
[0037] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.
Claims
1. A protection device for a high-power high-voltage frequency converter, comprising a frequency converter body (1), characterized in that: The lower surface of the frequency converter body (1) is provided with a base (2), and an auxiliary device (3) is arranged on the surface of the base (2). The auxiliary device (3) includes a protective shell (301). The protective shell (301) is fixedly connected to the surface of the base (2). Two rotating blocks (302) are fixedly connected to the surface of the protective shell (301). A rotating rod (303) is rotatably connected to one side of the two rotating blocks (302) close to each other. A protective plate (304) is fixedly connected to the arc surface of the rotating rod (303). A handle (312) is fixedly connected to the surface of the protective plate (304).
2. The protection device for a high-power high-voltage frequency converter according to claim 1, wherein: An adapter rod (305) is rotatably connected to the surface of the protective shell (301). A limiting plate (306) is fixedly connected to one end of the adapter rod (305) away from the protective shell (301). A U-shaped plate (307) is fixedly connected to the surface of the protective plate (304).
3. The protection device for a high-power high-voltage frequency converter according to claim 2, characterized in that: A torsion spring (308) is sleeved on the arc surface of the adapter rod (305). The two ends of the torsion spring (308) are respectively fixedly connected to the limiting plate (306) and the protective shell (301).
4. A protection device for a high-power high-voltage frequency converter according to claim 1, characterized in that: A fixed block (309) is fixedly connected to the surface of the protective shell (301). A limiting rod (310) is slidably inserted into the fixed block (309). A limiting block (311) is fixedly connected to one end of the limiting rod (310). The limiting block (311) is slidably connected to the surface of the protective shell (301).
5. The protection device for a high-power high-voltage frequency converter according to claim 1, characterized in that: A sunshade device (4) is arranged on the surface of the frequency converter body (1). The sunshade device (4) includes a fixing plate (41). The fixing plate (41) is fixedly connected to the surface of the frequency converter body (1). A round rod (42) is rotatably connected to the surface of the fixing plate (41). A sunshade plate (43) is fixedly connected to the arc surface of the round rod (42).
6. The protection device for a high-power high-voltage frequency converter according to claim 5, wherein: Two connecting rods (44) are fixedly connected to the surface of the fixing plate (41). A connecting plate (45) is fixedly connected to one end of the connecting rod (44) away from the fixing plate (41). A plug rod (46) is slidably inserted into the connecting plate (45). Two slots are formed in the surface of the sunshade plate (43). The size of the plug rod (46) is adapted to the size of the slots of the sunshade plate (43). An operation block (47) is fixedly connected to one end of the plug rod (46).
7. The protection device for a high-power high-voltage frequency converter according to claim 6, characterized in that: A spring (48) is sleeved on the arc surface of the plug rod (46). The two ends of the spring (48) are respectively fixedly connected to the connecting plate (45) and the operation block (47).
Citation Information
Patent Citations
High-voltage frequency converter
CN216016700U