Air-cooled variable frequency controller

Abstract

The utility model relates to the technical field of variable frequency controllers, and discloses an air-cooled variable frequency controller. The air-cooled variable frequency controller comprises a casing, a turnover cover plate, control buttons, hinges and a circuit board, the two hinges are mounted on the right side of the casing, the turnover cover plate is rotatably arranged on the two hinges, the control buttons are arranged on the turnover cover plate, the circuit board is fixedly connected inside the casing, and the control buttons are arranged on the circuit board. The LED lamp further comprises heat-conducting plates, heat-conducting blocks, an installation shell and cooling fans, one heat-conducting plate is arranged on the rear side in the machine shell, the other heat-conducting plate is arranged on the rear side of the circuit board, the two heat-conducting blocks are fixedly connected between the two heat-conducting plates, the installation shell is installed on the rear side of the machine shell, and the multiple cooling fans are installed on the top of the installation shell. Through the arrangement of the heat conduction plate, the heat dissipation fins, the heat dissipation fan and the like, heat in the machine shell is transferred out, then air circulation is accelerated through the heat dissipation fan, and therefore the purpose of efficient heat dissipation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency conversion controllers and discloses an air-cooled frequency conversion controller. Background Art

[0002] A frequency converter is a device used to change the frequency of alternating current. It can convert the AC power of the power supply into DC power, and then convert the DC power into AC power, thereby controlling the speed of the motor. The working principle of the frequency converter is based on the on-off function of power semiconductor devices, and the speed regulation function of the motor is achieved by adjusting the frequency and voltage of the power supply.

[0003] The patent with the patent authorization publication number CN217940671U discloses a music fountain frequency conversion controller, including two mounting seats, a fountain frequency conversion controller body, a rotating shaft, a gear and two limit units for fixing the fountain frequency conversion controller body on the mounting seats. Although the above patent installs the music fountain frequency conversion controller body on the two mounting seats, the slide bar is inserted into the card slot under the action of the return spring elastic force to prevent the wheel from rotating at will, but heat is generated during the operation of the frequency conversion controller. The natural heat dissipation method has low heat dissipation efficiency and cannot quickly discharge the heat inside the frequency conversion controller, resulting in excessive temperature affecting the normal operation of the frequency conversion controller, accelerating the loss of internal parts, and thus shortening the service life.

[0004] Therefore, a fan-cooled variable frequency controller with efficient heat dissipation is needed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art that heat is generated during the operation of the frequency converter and natural heat dissipation is adopted, the heat dissipation efficiency is low and the heat inside the frequency converter cannot be quickly discharged, resulting in excessive temperature affecting the normal operation of the frequency converter, accelerating the loss of internal parts, and thus shortening the service life, the utility model provides an air-cooled frequency converter with efficient heat dissipation.

[0006] The technical implementation scheme of the utility model is: an air-cooled frequency conversion controller, comprising a casing, a flip cover, control buttons, a hinge, a circuit board and a circuit component, two hinges are installed on the right side of the casing, the two hinges are rotatably provided with a flip cover, a plurality of control buttons are arranged on the flip cover, a circuit board is fixedly connected inside the casing, a plurality of circuit components are connected to the circuit board, and also comprises a heat conducting plate, a heat conducting block, a mounting shell, heat dissipation fins and a heat dissipation fan, a heat conducting plate is arranged on the rear side of the casing, another heat conducting plate is arranged on the rear side of the circuit board, two heat conducting blocks are fixedly connected between the two heat conducting plates, a mounting shell is installed on the rear side of the casing, a plurality of heat dissipation fins are fixedly connected to the rear side of the casing, and a plurality of heat dissipation fans are installed on the top of the mounting shell.

[0007] Furthermore, it also includes a sliding seat, a sliding block, a buffer plate and an elastic member. Two sliding seats are fixedly connected to the left and right sides of the casing. A sliding block is slidably arranged on the sliding seat. Two elastic members are connected between the sliding block and the sliding seat. The two vertically aligned sliding blocks are jointly installed with a buffer plate.

[0008] Furthermore, it also includes a rotating rod and a card block. The rotating rod is rotatably arranged on the flip cover plate, and the card block is fixedly connected to the rear end of the rotating rod. A card slot is provided at the left side inside the casing, and the card block can be inserted into the card slot.

[0009] Furthermore, it also includes a handle, and the front end of the rotating rod is fixedly connected to the handle.

[0010] Furthermore, a sealing gasket is also included, and a sealing gasket is arranged on the front side of the casing.

[0011] Furthermore, a protective net is also included, and a protective net is embedded on the top of the cooling fan.

[0012] Compared with the prior art, the utility model provides an air-cooled frequency conversion controller with the following beneficial effects: 1. The heat inside the casing is transferred out through the arrangement of heat conduction plates, heat dissipation fins and heat dissipation fans, and the heat dissipation fan accelerates the air circulation, thereby achieving the purpose of efficient heat dissipation, avoiding excessive temperature affecting the normal operation of the frequency conversion controller, slowing down the loss of internal parts and thus extending the service life.

[0013] 2. The elastic member is restored to its original state so that the sliding block drives the buffer plate to move outward, thereby buffering the impact force generated by the collision, thereby protecting the casing and preventing the casing from being deformed by the collision.

[0014] 3. Hold the handle and rotate the rod 90 degrees in the opposite direction so that the card block is inserted into the card slot, thereby limiting the flip cover and preventing the flip cover from rotating to open the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the casing, circuit board and mounting casing of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the housing, circuit board and heat conducting plate of the utility model.

[0018] Figure 4 A three-dimensional cross-sectional schematic diagram of a heat conducting plate and a heat conducting block of the utility model.

[0019] Figure 5 A three-dimensional structural schematic diagram of the utility model including a mounting shell, heat dissipation fins and a heat dissipation fan.

[0020] Figure 6 The three-dimensional structural diagram of the casing, the sliding seat and the buffer plate of the utility model.

[0021] Figure 7 A three-dimensional structural schematic diagram of the sliding seat, the sliding block and the elastic member of the utility model.

[0022] Figure 8 The utility model is a three-dimensional cross-sectional schematic diagram of a handle, a rotating rod and a clamping block.

[0023] In the above figures: 1: housing, 2: flip cover, 201: control button, 3: hinge, 4: circuit board, 401: circuit component, 5: heat conduction plate, 501: heat conduction block, 6: mounting shell, 7: cooling fins, 8: cooling fan, 9: sliding seat, 10: sliding block, 11: buffer plate, 12: elastic member, 13: handle, 14: rotating rod, 15: card block, 1501: card slot, 16: sealing gasket, 17: protective net. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: An air-cooled variable frequency controller, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8, including a housing 1, a flip cover 2, a control button 201, a hinge 3, a circuit board 4 and a circuit component 401, two hinges 3 are provided on the right side of the housing 1 by bolt connection, the two hinges 3 are rotatably provided with a flip cover 2, a plurality of control buttons 201 are provided on the flip cover 2, a circuit board 4 is fixedly connected inside the housing 1, a plurality of circuit components 401 are connected to the circuit board 4, a heat conducting plate 5, a heat conducting block 501, a mounting shell 6, a heat dissipation fin 7 and a heat dissipation fan 8, a heat conducting plate 5 is provided on the rear side of the housing 1, another heat conducting plate 5 is provided on the rear side of the circuit board 4, and two heat conducting blocks 501 are fixedly connected between the two heat conducting plates 5 1, a mounting shell 6 is provided at the rear side of the casing 1 by means of bolt connection, a plurality of heat dissipation fins 7 are fixedly connected to the rear side of the casing 1, three heat dissipation fans 8 are provided at the top of the mounting shell 6 by means of bolt connection, a sealing gasket 16 is provided at the front side of the casing 1, the sealing gasket 16 reduces the gap between the flip cover 2 and the casing 1 to prevent dust from entering the inside of the casing 1 through the gap and adhering to the circuit board 4 and the circuit component 401, thereby affecting the operation of the frequency conversion controller, and a protective net 17 is embedded on the top of the heat dissipation fan 8 to protect the heat dissipation fan 8, thereby preventing foreign matter from entering the inside of the heat dissipation fan 8 when the heat dissipation fan 8 is running, thereby affecting the rotation of the heat dissipation fan 8.

[0026] When the frequency conversion controller is needed, the housing 1 is installed on the air-cooled frequency conversion thermal management device, and the frequency conversion controller is adjusted through the control button 201, so that the frequency conversion controller uses the four-quadrant controlled rectification method to convert the input three-phase 380-480V AC voltage into DC550-800V DC voltage, and drives the compressor and AC fan through different IGBT modules. At the same time, the DC bus is reserved to power other loads, so that the frequency conversion compressor + AC condensing fan + high-voltage DC pump can be driven to realize centralized harmonic processing. When the heat is generated, the heat conducting block 501 on the rear side of the circuit board 4 conducts the heat to another heat conducting plate 5 through the heat conducting block 501, and then transfers it to the heat dissipation fins 7. The heat dissipation fan 8 is turned on, and the heat dissipation fan 8 rotates to generate wind force, which accelerates the air circulation inside the mounting shell 6 and quickly transfers the rapid heat to the air. At the same time, the air will also flow through the gaps in the heat dissipation fins 7 to form convection heat transfer, which further accelerates the dissipation of heat, thereby achieving the purpose of efficient heat dissipation, avoiding excessive temperature affecting the normal operation of the frequency converter, slowing down the loss of internal parts and thus extending the service life.

[0027] Example 2: Based on Figure 1 , Figure 6 and Figure 7Two sliding seats 9 are fixedly connected to the left and right sides of the casing 1, and a sliding block 10 is slidably arranged on the sliding seat 9. Two elastic members 12 are connected between the sliding block 10 and the sliding seat 9. The two vertically aligned sliding blocks 10 are jointly provided with a buffer plate 11 by bolt connection.

[0028] When the casing 1 is hit by an external force, the buffer plate 11 is squeezed inward by the impact force generated by the impact, causing the sliding block 10 to move the compressed elastic member 12. When the buffer plate 11 is no longer pressurized, the elastic member 12 returns to its original state, causing the sliding block 10 to drive the buffer plate 11 to move outward, thereby buffering the impact force generated by the impact, thereby protecting the casing 1 and preventing the casing 1 from being deformed by the impact.

[0029] See also Figure 8 A rotating rod 14 is rotatably provided on the flip cover 2, and a clamping block 15 is fixedly connected to the rear end of the rotating rod 14. A clamping slot 1501 is provided on the left side of the inside of the casing 1, and the clamping block 15 can be inserted into the clamping slot 1501. A handle 13 is fixedly connected to the front end of the rotating rod 14. The handle 13 increases the fulcrum between the hand and the rotating rod 14, and holding the handle 13 facilitates the rotation of the rotating rod 14.

[0030] When it is necessary to perform circuit maintenance on the frequency converter, hold the handle 13 and rotate the rotating rod 14 ninety degrees to disengage the block 15 from the card slot 1501, then rotate the flip cover 2 forward to open the casing 1, and perform maintenance on the circuit inside the casing 1. After the maintenance is completed, rotate the flip cover 2 backward to close the casing 1, and then hold the handle 13 and rotate the rotating rod 14 ninety degrees in the opposite direction to make the block 15 fit into the card slot 1501, thereby limiting the flip cover 2, thereby preventing the flip cover 2 from rotating to open the casing 1.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-cooled variable frequency controller, comprising a housing (1), a flip cover (2), a control button (201), a hinge (3), a circuit board (4) and a circuit assembly (401), wherein two hinges (3) are installed on the right side of the housing (1), the flip cover (2) is rotatably arranged on the two hinges (3), a plurality of control buttons (201) are arranged on the flip cover (2), a circuit board (4) is fixedly connected inside the housing (1), and a plurality of circuit assemblies (401) are connected to the circuit board (4), wherein: It also comprises a heat conducting plate (5), a heat conducting block (501), a mounting shell (6), heat dissipation fins (7) and a heat dissipation fan (8); a heat conducting plate (5) is arranged on the rear side of the casing (1); another heat conducting plate (5) is arranged on the rear side of the circuit board (4); two heat conducting blocks (501) are fixedly connected between the two heat conducting plates (5); a mounting shell (6) is installed on the rear side of the casing (1); a plurality of heat dissipation fins (7) are fixedly connected to the rear side of the casing (1); and a plurality of heat dissipation fans (8) are installed on the top of the mounting shell (6).

2. The air-cooled variable frequency controller according to claim 1, characterized in that: The machine body also comprises a sliding seat (9), a sliding block (10), a buffer plate (11) and an elastic member (12); two sliding seats (9) are fixedly connected to the left and right sides of the housing (1); a sliding block (10) is slidably arranged on the sliding seat (9); two elastic members (12) are connected between the sliding block (10) and the sliding seat (9); and the buffer plate (11) is installed together on the two vertically aligned sliding blocks (10).

3. The air-cooled variable frequency controller according to claim 1, characterized in that: The invention also comprises a rotating rod (14) and a clamping block (15). The rotating rod (14) is rotatably arranged on the flip cover (2). The clamping block (15) is fixedly connected to the rear end of the rotating rod (14). A clamping slot (1501) is provided at the left side of the inside of the housing (1). The clamping block (15) can be clamped into the clamping slot (1501).

4. The air-cooled variable frequency controller according to claim 3, characterized in that: It also includes a handle (13), and the front end of the rotating rod (14) is fixedly connected to the handle (13).

5. The air-cooled variable frequency controller according to claim 1, characterized in that: It also includes a sealing gasket (16), and the front side of the housing (1) is provided with the sealing gasket (16).

6. The air-cooled variable frequency controller according to claim 1, characterized in that: It also includes a protective net (17), and the top of the heat dissipation fan (8) is embedded with the protective net (17).

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