Frequency converter with heat dissipation structure

Abstract

The utility model discloses a frequency converter with a heat dissipation structure, and relates to the technical field of frequency converters. The frequency converter with the heat dissipation structure comprises a mounting shell, a ventilation opening is formed in the side wall of the mounting shell, a heat dissipation mechanism is arranged in the mounting shell and comprises a motor, the motor is fixedly connected with the inner wall of the top of the mounting shell, an output shaft of the motor is fixedly connected with a reciprocating lead screw, and the reciprocating lead screw is fixedly connected with a power source. The reciprocating screw rod is slidably connected with a sliding plate, a fan is arranged on the sliding plate, a dustproof plate is arranged in the inner wall of the mounting shell, the dustproof plate is rotatably connected with a scraping plate, an impact rod is hinged to the inner wall of the mounting shell, and the impact rod is fixedly connected with an impact ball; and the impact rod is elastically connected with the inner wall of the mounting groove through a spring. According to the frequency converter with the heat dissipation structure, through the arrangement of the heat dissipation mechanism, different positions in the frequency converter can obtain a relatively good heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to a frequency converter with a heat dissipation structure. Background Art

[0002] A frequency converter, also known as a variable frequency speed regulator or inverter, is a device used to control the speed of an electric motor. It changes the speed of the motor by adjusting the power supply frequency and voltage to meet the requirements of different processes and applications.

[0003] A frequency converter with a heat dissipation structure disclosed in publication number CN116436371A includes a mounting shell, a partition is arranged inside the mounting shell, a heat dissipation frame is arranged outside the mounting shell, the mounting shell includes a mounting frame and a circuit mainboard arranged inside the mounting frame, fans are installed on the upper and lower sides of the mounting frame, the fan stirs the gas flow inside the mounting frame, the stirred gas in the mounting frame drives the heat generated by the circuit mainboard to leave the mounting frame, during the flow of the airflow, the partition separates and guides the flowing gas, the above application document guides the airflow blown by the fan through the partition, so that the airflow blows toward the circuit mainboard to avoid heat dissipation dead corners on the circuit mainboard, and at the same time, the partition guides the airflow that absorbs hot air away from the circuit mainboard to accelerate the heat dissipation of the circuit mainboard, and then guides the airflow that absorbs hot air through the heat dissipation frame to accelerate the rapid discharge of air carrying hot air from the device, but in actual use, the wind force is weakened between the partitions, the heat dissipation effect of the middle part of the mounting shell may be poor, and the connection between the inside and the outside of the mounting shell may cause dust to enter, affecting the heat dissipation effect. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a frequency converter with a heat dissipation structure, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented by the following technical solutions: a frequency converter with a heat dissipation structure, including a mounting shell, a vent is provided on the side wall of the mounting shell, a heat dissipation mechanism is arranged inside the mounting shell, a starting assembly is arranged inside the mounting shell, the heat dissipation mechanism includes a motor, the motor is fixedly connected to the top inner wall of the mounting shell, the output shaft of the motor is fixedly connected to a reciprocating screw, the reciprocating screw is rotatably connected to the inner wall of the mounting shell, the reciprocating screw is slidably connected to a sliding plate through a reciprocating groove provided on the surface, the sliding plate is slidably connected to the inner wall of the mounting shell, a fan is arranged on the sliding plate, a dustproof plate is arranged in the inner wall of the mounting shell, the dustproof plate is rotatably connected to a scraper, a mounting groove is provided on the inner wall of the mounting shell, a striking rod is hinged on the inner wall of the mounting shell, the striking rod is fixedly connected to a striking ball, and the striking rod is elastically connected to the inner wall of the mounting groove through a spring.

[0005] Preferably, the cross-sectional shape of the impact rod on the side close to the fan is a trapezoid, and the upper and lower widths of the impact rod are smaller than the middle width. By setting the shape of the impact rod, it is ensured that the impact rod can be pressed by the upper and lower inclined surfaces of the impact rod during the up and down sliding process of the sliding plate, so that the impact rod can shake, so as to facilitate the impact on the dustproof plate and achieve the cleaning effect of the dustproof plate.

[0006] Preferably, when the scraper is in the initial position, there is a part at one end close to the fan that is in the same vertical plane as the sliding plate. By setting the initial position of the scraper, it is ensured that the scraper can be driven to swing up and down during the up and down sliding process of the sliding plate, thereby achieving the effect of cleaning the inner wall of the dustproof plate while generating partial airflow.

[0007] Preferably, the starting assembly includes an air pressure tube, a collision block is slidably connected to the inner wall of the air pressure tube, the collision block is elastically connected to the bottom inner wall of the air pressure tube through a tension spring, and a motor switch is arranged on the inner wall of the mounting shell.

[0008] Preferably, the collision block and the switch of the motor are in the same vertical plane, and the collision block does not contact the switch of the motor at normal temperature. By setting the position of the collision block and the switch of the motor, it is ensured that the collision block can press the switch of the motor at high temperature, thereby achieving the effect of starting the heat dissipation mechanism.

[0009] Preferably, the pressure tube is made of copper, and the interior of the pressure tube is filled with a gas that expands when heated. By setting the material of the pressure tube, the thermal conductivity of the pressure tube is ensured to be good, preventing the heat dissipation mechanism from being unable to be started in time due to poor thermal conductivity, thereby affecting the life of the equipment.

[0010] The utility model provides a frequency converter with a heat dissipation structure. It has the following beneficial effects:

[0011] (1) The utility model sets a heat dissipation mechanism, and drives the reciprocating screw to rotate through a motor, so that the fan moves up and down to dissipate heat to different areas of the equipment, and drives the scraper to swing up and down, so that the scraper cleans the inner wall of the dustproof plate and generates partial airflow to enhance the heat dissipation effect. At the same time, the movement of the scraper presses the impact rod, so that the impact rod drives the impact ball to hit the dustproof plate during the shaking process, so that impurities on the outer wall of the dustproof plate can be shaken off.

[0012] (2) The utility model sets a starting component so that when the temperature inside the inverter is high, the gas inside the air pressure tube expands due to the heat, thereby pushing the collision block, causing the collision block to move upward and squeeze the switch of the motor, thereby achieving the effect of automatically starting the heat dissipation mechanism when heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 3 This is a partial structural diagram of the heat dissipation mechanism of the utility model;

[0016] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of A.

[0017] In the figure: 1. mounting shell; 2. vent; 3. heat dissipation mechanism; 4. starting assembly; 31. motor; 32. reciprocating screw; 33. sliding plate; 34. fan; 35. dust plate; 36. scraper; 37. impact rod; 38. impact ball; 39. spring; 41. air pressure tube; 42. collision block; 43. tension spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Embodiment 1

[0020] See also Figure 1-3A frequency converter with a heat dissipation structure includes a mounting shell 1, a vent 2 is provided on the side wall of the mounting shell 1, a heat dissipation mechanism 3 is provided inside the mounting shell 1, a starting assembly 4 is provided inside the mounting shell 1, the heat dissipation mechanism 3 includes a motor 31, the motor 31 is fixedly connected to the top inner wall of the mounting shell 1, the output shaft of the motor 31 is fixedly connected to a reciprocating screw rod 32, the reciprocating screw rod 32 is rotatably connected to the inner wall of the mounting shell 1, the reciprocating screw rod 32 is slidably connected to a sliding plate 33 through a reciprocating groove provided on the surface, and the sliding plate 33 is connected to the The inner wall of the mounting shell 1 is slidably connected, a fan 34 is arranged on the sliding plate 33, a dust plate 35 is arranged in the inner wall of the mounting shell 1, and the dust plate 35 is rotatably connected with a scraper 36. When the scraper 36 is in the initial position, there is a part in the same vertical plane as the sliding plate 33 at one end close to the fan 34. By setting the initial position of the scraper 36, it is ensured that the scraper 36 can be driven to shake up and down during the up and down sliding process of the sliding plate 33, so as to achieve the effect of cleaning the inner wall of the dust plate 35 while generating part of the airflow, and the inner wall of the mounting shell 1 The upper and lower inclined surfaces of the impact rod 37 are set to press the impact rod 37 when the sliding plate 33 slides up and down, so that the impact rod 37 can be shaken to hit the dustproof plate 35, so as to achieve the cleaning effect of the dustproof plate 35. The impact rod 37 is fixedly connected with an impact ball 38, and the impact ball 38 is fixedly connected with the impact rod 37. The striking rod 37 is elastically connected to the inner wall of the mounting groove by a spring 39, and the reciprocating screw rod 32 is driven to rotate by the motor 31, so that the fan 34 moves up and down to dissipate heat to different areas of the equipment, while driving the scraper 36 to shake up and down, so that the scraper 36 cleans the inner wall of the dustproof plate 35 and generates partial airflow to enhance the heat dissipation effect. At the same time, the impact rod 37 is pressed by the movement of the scraper 36, so that the impact rod 37 drives the impact ball 38 to hit the dustproof plate 35 during the shaking process, so that impurities on the outer wall of the dustproof plate 35 can be shaken off.

[0021] When in use, after the heat dissipation mechanism 3 is started, the motor 31 is started, so the output shaft of the motor 31 drives the reciprocating screw 32 to rotate, so that the sliding plate 33 moves back and forth up and down under the drive of the reciprocating screw 32, and drives the fan 34 to move up and down, so that the fan 34 can dissipate heat at different positions inside the mounting shell 1 during the movement. At the same time, during the movement of the sliding plate 33, the sliding plate 33 contacts the edge of the scraper 36, so that the scraper 36 first tilts under the drive of the sliding plate 33. When the tilt angle is large, the sliding plate 33 does not contact the scraper 36. Afterwards, the scraper 36 swings up and down under the action of gravity, so that the scraper 36 cleans the inner surface of the dustproof plate 35 during the swinging process and generates some airflow, thereby enhancing the heat dissipation effect. At the same time, in the process of the sliding plate 33 moving up and down, the sliding plate 33 squeezes the impact rod 37 through the inclined position of the impact rod 37. When the sliding plate 33 moves to leave the impact rod 37, the impact rod 37 swings under the action of the rebound force of the spring 39, thereby driving the impact ball 38 to hit the dustproof plate 35, so that the dust attached to the dustproof plate 35 can be shaken off, preventing excessive dust accumulation from affecting the heat dissipation effect.

[0022] Embodiment 2

[0023] See also Figure 1-4 On the basis of the first embodiment, the starting component 4 includes an air pressure tube 41, the material of the air pressure tube 41 is copper, and the interior of the air pressure tube 41 is filled with a gas that is easily expanded when heated. The material setting of the air pressure tube 41 ensures that the thermal conductivity of the air pressure tube 41 is good, and prevents the heat dissipation mechanism 3 from being unable to be started in time due to poor thermal conductivity, thereby affecting the life of the equipment. A collision block 42 is slidably connected to the inner wall of the air pressure tube 41, and the collision block 42 is elastically connected to the bottom inner wall of the air pressure tube 41 through a tension spring 43. A switch of the motor 31 is arranged on the inner wall of the mounting shell 1, and the collision block 42 is connected to the motor 3 1 are in the same vertical plane, and the collision block 42 is not in contact with the switch of the motor 31 at room temperature. By setting the positions of the collision block 42 and the switch of the motor 31, it is ensured that the collision block 42 can press the switch of the motor 31 at high temperature to achieve the effect of starting the heat dissipation mechanism 3. By setting the starting component 4, when the internal temperature of the inverter is high, the gas inside the air pressure tube 41 expands due to heat, thereby pushing the collision block 42, so that the collision block 42 moves upward and squeezes the switch of the motor 31, so as to achieve the effect of automatically starting the heat dissipation mechanism 3 due to heat.

[0024] When in use, on the basis of Example 1, by setting a starting component 4, when the internal temperature of the inverter is high, the gas inside the air pressure tube 41 expands due to the heat, thereby pushing the collision block 42, causing the collision block 42 to move upward and squeeze the switch of the motor 31, thereby achieving the effect of automatically starting the heat dissipation mechanism 3 when heated. When the temperature drops, the gas inside the air pressure tube 41 contracts, causing the collision block 42 to reset under the pull of the tension spring 43, thereby stopping the motor 31 from running, preventing excessive waste of electricity due to heat dissipation.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frequency converter with a heat dissipation structure, comprising a mounting shell (1), characterized in that: A vent (2) is provided on the side wall of the installation shell (1), a heat dissipation mechanism (3) is provided inside the installation shell (1), and a starting component (4) is provided inside the installation shell (1); The heat dissipation mechanism (3) comprises a motor (31), the motor (31) being fixedly connected to the top inner wall of the mounting shell (1), the output shaft of the motor (31) being fixedly connected to a reciprocating screw (32), the reciprocating screw (32) being rotatably connected to the inner wall of the mounting shell (1), the reciprocating screw (32) being slidably connected to a sliding plate (33) via a reciprocating groove provided on the surface, the sliding plate (33) being slidably connected to the inner wall of the mounting shell (1), the sliding plate (33) being provided with a fan (34), and the mounting shell (1) A dustproof plate (35) is arranged in the inner wall of the mounting shell (1), the dustproof plate (35) is rotatably connected to a scraper (36), a mounting groove is arranged on the inner wall of the mounting shell (1), a striking rod (37) is hinged on the inner wall of the mounting shell (1), the striking rod (37) is fixedly connected to a striking ball (38), the striking rod (37) is elastically connected to the inner wall of the mounting groove via a spring (39), the cross-section of the striking rod (37) on the side close to the fan (34) is trapezoidal, and the upper and lower widths of the striking rod (37) are smaller than the middle width.

2. The frequency converter with a heat dissipation structure according to claim 1, characterized in that: When the scraper (36) is in the initial position, one end close to the fan (34) has a portion that is in the same vertical plane as the sliding plate (33).

3. The frequency converter with a heat dissipation structure according to claim 2, characterized in that: The starting assembly (4) comprises an air pressure tube (41), a collision block (42) is slidably connected to the inner wall of the air pressure tube (41), and the collision block (42) is elastically connected to the bottom inner wall of the air pressure tube (41) via a tension spring (43). A switch for the motor (31) is arranged on the inner wall of the mounting shell (1).

4. The frequency converter with a heat dissipation structure according to claim 3, characterized in that: The collision block (42) and the switch of the motor (31) are located in the same vertical plane, and the collision block (42) does not contact the switch of the motor (31) when in a normal temperature state.

5. The frequency converter with a heat dissipation structure according to claim 4, characterized in that: The material of the air pressure tube (41) is copper, and the interior of the air pressure tube (41) is filled with a gas that expands when heated.

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