Frequency converter fixing device and frequency converter

Abstract

The utility model discloses a frequency converter fixing device and a frequency converter, which belongs to the technical field of frequency converter installation and comprises a frequency conversion cabinet, a heat dissipation shell I, a heat dissipation shell II, a heat dissipation channel, an upper connecting shell, a lower connecting shell, a heat dissipation assembly, a ventilation assembly, an installation assembly and a filter assembly. According to the utility model, through cooperative use of the heat dissipation shell I, the heat dissipation shell II, the heat dissipation channel, the heat dissipation assembly and the ventilation assembly, when the frequency converter body is installed, one side of the frequency converter body can be clamped into the inner cavity of the heat dissipation shell I, and then the heat dissipation shell II is installed and fixed on one side of the heat dissipation shell I through the installation assembly; at the moment, the frequency converter body is located between the first heat dissipation shell and the second heat dissipation shell, heat generated by working of the frequency converter body can be discharged to the outside through the heat dissipation channels through cooperative use of the heat dissipation assembly and the ventilation assembly, and through arrangement of the device, the advantages of independent heat dissipation and small installation occupied space are achieved; and normal operation and use of other equipment in the frequency conversion cabinet cannot be influenced during heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter installation technology, specifically to a frequency converter fixing device and a frequency converter. Background Technology

[0002] A frequency converter (VFD) is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of its power supply. A VFD mainly consists of a rectification unit (AC to DC), a filter, an inverter (DC to AC), a braking unit, a drive unit, a detection unit, and a microprocessor unit. The VFD adjusts the output voltage and frequency by switching its internal IGBTs, providing the required power voltage according to the motor's actual needs, thereby achieving energy saving and speed regulation. In addition, VFDs have many protection functions, such as overcurrent, overvoltage, and overload protection. With the continuous improvement of industrial automation, VFDs have been widely used. Currently, during the installation and use of VFDs, they need to be secured.

[0003] Patent CN219576840U discloses a frequency converter mounting device and a frequency converter, belonging to the technical field of frequency converter installation equipment. The frequency converter mounting device includes a base and a heat dissipation mechanism. The base includes a housing, a positioning plate, an air jet fan, and a dust cover. The heat dissipation mechanism includes an air intake box and an air exhaust box. An operator selects an external frequency converter and installs it on top of the positioning plate. The operator then activates the air jet fan, which continuously supplies external air to the bottom of the positioning plate through an air intake pipe. This allows the heat generated by the frequency converter to be carried to the top of the housing. The air intake box and air pump located at the top of the housing quickly absorb the hot air, and the hot air is then discharged through the exhaust box. This effectively dissipates heat generated in the frequency converter area, ensuring the frequency converter's service life.

[0004] The inverter mounting device mentioned in the above patent installs the inverter in the middle of the cabinet, which occupies a lot of space inside the cabinet, making it difficult to install other parts. Furthermore, when the inverter is dissipating heat, its heat will fill the cabinet, which will increase the operating temperature of other components and affect the overall stability of the equipment. Therefore, we need to propose an inverter mounting device and an inverter. Utility Model Content

[0005] The purpose of this utility model is to provide a frequency converter fixing device and a frequency converter, which has the advantages of independent heat dissipation and small installation space, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a frequency converter fixing device, including a frequency converter cabinet, and further including a heat sink first shell, a heat sink second shell, a heat dissipation channel, an upper connecting shell, a lower connecting shell, a heat dissipation component, a ventilation component, a mounting component, and a filter component, wherein: the heat sink first shell and the heat sink second shell are fixed together by the mounting component, the ventilation component and the heat dissipation component are respectively mounted on the upper and lower sides of the heat sink first shell through the upper and lower connecting shells, the heat dissipation channel is provided inside the heat sink first shell and the heat sink second shell, and the filter component is installed at the bottom of the frequency converter cabinet and is correspondingly arranged with the heat dissipation component.

[0007] Preferably, the heat dissipation assembly includes a fixed housing that is fixedly installed at the bottom of the lower connecting shell, and two sets of cooling fans are fixedly installed at the bottom of the inner cavity of the fixed housing.

[0008] Preferably, the bottom of the heat sink is provided with an air inlet, which is arranged in a corresponding manner to the cooling fan.

[0009] Preferably, the bottom of the frequency converter cabinet is provided with a mounting groove that is compatible with the fixed shell, and the surface of the fixed shell is fixedly connected to the inner wall of the mounting groove.

[0010] Preferably, the filter assembly includes a mounting plate disposed at the bottom of the frequency converter cabinet, and a filter plate is embedded on the surface of the mounting plate at the corresponding position of the air inlet.

[0011] Preferably, positioning rods are provided at the four corners of the bottom of the mounting plate, and the top of the positioning rods penetrates the mounting plate and extends to the top of the mounting plate to be threadedly connected to the bottom of the frequency converter cabinet.

[0012] Preferably, the ventilation assembly includes a fixed pipe fixedly installed on the top of the upper connecting shell, a connecting screw pipe threaded to the top of the fixed pipe, an exhaust pipe fixedly connected to the top end of the connecting screw pipe that passes through the fixed pipe and extends to the outside of the fixed pipe, and the exhaust pipe, at the end away from the connecting screw pipe, passes through the frequency converter cabinet and extends to the outside of the frequency converter cabinet.

[0013] Preferably, the mounting assembly includes a connecting plate 1 fixedly mounted on both sides of the heat sink housing 2, and a connecting plate 2 fixedly mounted on both sides of the heat sink housing 1 and at corresponding positions on the connecting plate 1. The connecting plate 1 and the connecting plate 2 are locked together by a locking assembly.

[0014] Preferably, the locking assembly includes a locking rod disposed on one side of the connecting plate, one end of the locking rod passing through the connecting plate and the connecting plate and threadedly connected to a locking nut, and one side of the locking nut being in contact with the surface of the connecting plate.

[0015] Based on the above-mentioned inverter fixing device, this utility model also discloses an inverter, including the above-mentioned inverter fixing device, and also including an inverter body, wherein the inverter body is disposed between the heat sink one and the heat sink two.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes a combination of a heat sink housing 1, a heat sink housing 2, a heat dissipation channel, a heat dissipation component, and a ventilation component. During inverter installation, one side of the inverter can be inserted into the inner cavity of the heat sink housing 1, and then the heat sink housing 2 is fixed to one side of the heat sink housing 1 using the mounting component. At this time, the inverter body is located between the heat sink housing 1 and the heat sink housing 2. Through the combined use of the heat dissipation component and the ventilation component, the heat generated by the inverter body during operation can be discharged to the outside through the heat dissipation channel. This device has the advantages of independent heat dissipation and small installation space occupation, and will not affect the normal operation of other equipment in the inverter cabinet during heat dissipation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the frequency converter cabinet of this utility model;

[0020] Figure 3 This is a schematic diagram of the mounting groove of this utility model;

[0021] Figure 4 This is a schematic diagram of the heat dissipation channel structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the heat dissipation component of this utility model;

[0023] Figure 6 This is a schematic diagram of the ventilation component of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the filter assembly of this utility model.

[0025] In the diagram: 1. Variable frequency drive cabinet; 2. Heat sink 1; 3. Heat sink 2; 4. Heat dissipation channel; 5. Upper connecting shell; 6. Lower connecting shell; 7. Fixing shell; 8. Cooling fan; 9. Air inlet; 10. Mounting slot; 11. Mounting plate; 12. Filter plate; 13. Positioning rod; 14. Fixing pipe; 15. Connecting screw; 16. Exhaust pipe; 17. Connecting plate 1; 18. Connecting plate 2; 19. Locking rod; 20. Locking nut; 21. Variable frequency drive body. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-7 This utility model provides a frequency converter fixing device, including a frequency converter cabinet 1, and also includes a heat sink 2, a heat sink 3, a heat dissipation channel 4, an upper connecting shell 5, a lower connecting shell 6, a heat dissipation component, a ventilation component, a mounting component, and a filter component. The heat sink 2 and the heat sink 3 are fixed together by the mounting component. The ventilation component and the heat dissipation component are respectively installed on the upper and lower sides of the heat sink 2 via the upper connecting shell 5 and the lower connecting shell 6. The heat dissipation channel 4 is located inside the heat sink 2 and the heat sink 3. The filter component is installed at the bottom of the frequency converter cabinet 1 and is arranged correspondingly to the heat dissipation component.

[0028] In this embodiment, by using the heat sink 2, heat sink 3, heat dissipation channel, heat dissipation component and ventilation component together, when installing the inverter body 21, one side of it can be inserted into the inner cavity of heat sink 2, and then heat sink 3 is installed and fixed to one side of heat sink 2 using the installation component. At this time, the inverter body 21 is located between heat sink 2 and heat sink 3. By using the heat dissipation component and ventilation component together, the heat generated by the inverter body 21 during operation can be discharged to the outside through the heat dissipation channel 4. With the setting of this device, it has the advantages of independent heat dissipation and small installation space occupation, and will not affect the normal operation of other equipment in the inverter cabinet 1 when dissipating heat.

[0029] As a preferred option, such as Figures 4-6 As shown, the heat dissipation assembly includes a fixed housing 7 fixedly installed at the bottom of the lower connecting housing 6. Two sets of cooling fans 8 are fixedly installed at the bottom of the inner cavity of the fixed housing 7. An air inlet 9 is opened at the bottom of the heat dissipation housing, and the air inlet 9 is correspondingly set with the cooling fans 8. The ventilation assembly includes a fixed pipe 14 fixedly installed at the top of the upper connecting housing 5. A connecting screw pipe 15 is threaded to the top of the fixed pipe 14. The top end of the connecting screw pipe 15 passes through the fixed pipe 14 and extends to the outside of the fixed pipe 14, where an exhaust pipe 16 is fixedly connected. The end of the exhaust pipe 16 away from the connecting screw pipe 15 passes through the frequency converter cabinet 1 and extends to the outside of the frequency converter cabinet 1.

[0030] With the combined use of heat dissipation and ventilation components, when the inverter body 21 is cooled, the user can use the cooling fan 8 to draw external air into the inner cavity of the fixed shell 7 through the air inlet 9, and then through the lower connecting shell 6 into the interior of the heat dissipation shell 1 2 and the heat dissipation shell 2 3. The heat dissipation shell 1 2 and the heat dissipation shell 2 3 are provided with several sets of heat dissipation channels 4 for heat dissipation of the surface of the inverter body 21. The drawn-in air can carry the heat on the surface of the inverter body 21 through the upper connecting shell 5 and the fixed pipe 14 into the exhaust pipe 16, and then be discharged to the outside of the inverter cabinet 1 through the exhaust pipe 16.

[0031] As a preferred option, such as Figure 3 As shown, the bottom of the frequency converter cabinet 1 is provided with a mounting groove 10 that is compatible with the fixed shell 7, and the surface of the fixed shell 7 is fixedly connected to the inner wall of the mounting groove 10. The mounting groove 10 provides installation space for the fixed shell 7, and the surface of the fixed shell 7 is fixedly mounted in the inner cavity of the mounting groove 10.

[0032] As a preferred option, such as Figure 2 and Figure 7 As shown, the filter assembly includes a mounting plate 11 located at the bottom of the frequency converter cabinet 1. A filter plate 12 is embedded on the surface of the mounting plate 11 at the corresponding position of the air inlet 9. Positioning rods 13 are provided at the four corners of the bottom of the mounting plate 11. The top of the positioning rods 13 passes through the mounting plate 11 and extends to the top of the mounting plate 11 and is threadedly connected to the bottom of the frequency converter cabinet 1.

[0033] With the filter assembly in place, the filter plate 12 is positioned at the corresponding location of the air inlet 9 to filter the air drawn into the fixed housing 7, preventing external dust or debris from entering the interior of the frequency converter cabinet 1 through the air inlet 9. The filter plate 12 can be installed and fixed at the bottom of the frequency converter cabinet 1 by the cooperation of the mounting plate 11 and the positioning rod 13.

[0034] As a preferred option, such as Figure 4 As shown, the mounting assembly includes a connecting plate 17 fixedly mounted on both sides of the heat sink housing 2 3, and a connecting plate 2 18 fixedly mounted on both sides of the heat sink housing 2 at the corresponding positions of the connecting plate 17. The connecting plate 17 and the connecting plate 2 18 are locked together by a locking assembly. The locking assembly includes a locking rod 19 located on one side of the connecting plate 17. One end of the locking rod 19 passes through the connecting plate 17 and the connecting plate 2 18 in sequence and is threaded with a locking nut 20. One side of the locking nut 20 is in contact with the surface of the connecting plate 2 18.

[0035] By setting the installation components, heat sink 1 2 and heat sink 2 3 can be installed and fixed on the surface of inverter body 21. When installing inverter body 21, the user can first insert inverter body 21 into the inner cavity of heat sink 1 2, and then align heat sink 2 3 with heat sink 1 2 and close it. At this time, connecting plate 1 17 and connecting plate 2 18 are in contact. The user can pass one end of locking rod 19 through connecting plate 1 17 and connecting plate 2 18 in sequence and tighten locking nut 20 on one end of locking rod 19 to lock heat sink 1 2 and heat sink 2 3 onto the surface of inverter body 21.

[0036] Based on the above-mentioned inverter fixing device, this embodiment also discloses an inverter, including the above-mentioned inverter fixing device, and also including an inverter body 21, which is disposed between the heat sink 2 and the heat sink 3.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frequency converter mounting device, comprising a frequency converter cabinet (1), characterized in that, It also includes heat sink 1 (2), heat sink 2 (3), heat dissipation channel (4), upper connecting shell (5), lower connecting shell (6), heat dissipation assembly, ventilation assembly, installation assembly and filter assembly, wherein: The heat dissipation shell 1 (2) and heat dissipation shell 2 (3) are fixed together by an installation assembly. The ventilation assembly and heat dissipation assembly are respectively installed on the upper and lower sides of the heat dissipation shell 1 (2) through the upper connecting shell (5) and the lower connecting shell (6). The heat dissipation channel (4) is located inside the heat dissipation shell 1 (2) and heat dissipation shell 2 (3). The filter assembly is installed at the bottom of the frequency converter cabinet (1) and is set in a corresponding manner to the heat dissipation assembly.

2. The inverter fixing device according to claim 1, characterized in that: The heat dissipation assembly includes a fixed shell (7) fixedly installed at the bottom of the lower connecting shell (6), and two sets of cooling fans (8) are fixedly installed at the bottom of the inner cavity of the fixed shell (7).

3. The inverter fixing device according to claim 2, characterized in that: The bottom of the heat sink is provided with an air inlet (9), and the air inlet (9) is provided in a corresponding manner with the cooling fan (8).

4. The inverter fixing device according to claim 2, characterized in that: The bottom of the frequency converter cabinet (1) is provided with an installation groove (10) that is compatible with the fixed shell (7), and the surface of the fixed shell (7) is fixedly connected to the inner wall of the installation groove (10).

5. The inverter fixing device according to claim 3, characterized in that: The filter assembly includes a mounting plate (11) located at the bottom of the frequency converter cabinet (1), and a filter plate (12) is embedded on the surface of the mounting plate (11) at the corresponding position of the air inlet (9).

6. The inverter fixing device according to claim 5, characterized in that: Positioning rods (13) are provided at the four corners of the bottom of the mounting plate (11). The top of the positioning rods (13) penetrates the mounting plate (11) and extends to the top of the mounting plate (11) and is threaded to the bottom of the frequency converter cabinet (1).

7. The inverter fixing device according to claim 1, characterized in that: The ventilation assembly includes a fixed pipe (14) fixedly installed on the top of the upper connecting shell (5). The top of the fixed pipe (14) is threadedly connected to a connecting screw pipe (15). The top end of the connecting screw pipe (15) passes through the fixed pipe (14) and extends to the outside of the fixed pipe (14) and is fixedly connected to an exhaust pipe (16). The end of the exhaust pipe (16) away from the connecting screw pipe (15) passes through the frequency converter cabinet (1) and extends to the outside of the frequency converter cabinet (1).

8. The inverter fixing device according to claim 1, characterized in that: The installation assembly includes a connecting plate 1 (17) fixedly installed on both sides of the heat sink shell 2 (3), and a connecting plate 2 (18) fixedly installed on both sides of the heat sink shell 2 and at the corresponding positions of the connecting plate 1 (17). The connecting plate 1 (17) and the connecting plate 2 (18) are locked together by a locking assembly.

9. A frequency converter fixing device according to claim 8, characterized in that: The locking assembly includes a locking rod (19) located on one side of the connecting plate (17). One end of the locking rod (19) passes through the connecting plate (17) and the connecting plate (18) in sequence and is threaded with a locking nut (20). One side of the locking nut (20) is in contact with the surface of the connecting plate (18).

10. A frequency converter, comprising the frequency converter fixing device according to any one of claims 1 to 9, characterized in that, It also includes a frequency converter body (21), which is located between the heat sink one (2) and the heat sink two (3).

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