Speed regulating device of high-voltage frequency converter

Abstract

The utility model relates to the technical field of frequency converter speed regulation, in particular to a high-voltage frequency converter speed regulation device which comprises a frequency converter shell, a positioning groove is formed in the bottom of the side face of the frequency converter shell, a positioning block is fixedly connected to the inner wall of the positioning groove, and a rear protective cover is fixedly connected to one side of the positioning block. The side face of the rear protective cover is fixedly connected with a fixing frame, and an inserting groove is formed in the front face of the fixing frame. Through the arrangement of the frequency converter shell, the positioning groove, the positioning block, the rear protective cover, the fixing frame, the insertion plate and the front protective cover, when a worker uses the device, the positioning block at the bottom of the inner wall of the rear protective cover is aligned with the positioning groove in the frequency converter shell, and then the insertion plate on the side face of the front protective cover is aligned with the insertion groove in the fixing frame to be fixed; the front protective cover and the rear protective cover are connected to protect the frequency converter shell, and the protective pads are arranged on the inner walls of the front protective cover and the rear protective cover, so that the protective effect on the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter speed regulation, in particular to a high-voltage frequency converter speed regulation device. Background Art

[0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The frequency converter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, microprocessor unit, etc. The speed regulation of the frequency converter requires a potentiometer.

[0003] A high-voltage frequency converter speed regulating device is disclosed in the Chinese utility model patent application disclosure specification CN215835318U. The high-voltage frequency converter speed regulating device comprises: a frequency converter; an adjustment slot, the adjustment slot is opened on the front of the frequency converter box, a threaded rod is rotatably connected between the top and bottom of the inner wall of the adjustment slot, and the outer part of the threaded rod is threadedly connected to the adjustment block through a threaded block; a rotating shaft, the rotating shaft is rotatably connected to one side of the threaded rod inside the frequency converter box, and the outer part of the rotating shaft is sleeved with a worm; a worm wheel, the worm wheel is rotatably connected to the inside of the frequency converter box. The high-voltage frequency converter speed regulating device provided by the utility model drives the rotating shaft to rotate through a transmission belt, and when the rotating shaft rotates, the worm is driven to rotate, so that the worm wheel drives the second card pin to rotate to a specified position, and then the personnel rotate the potentiometer to adjust, so that when the personnel perform the potentiometer speed adjustment, they can pre-position the required adjustment level through the second card pin, effectively avoiding personnel mistakes that cause the frequency converter speed to be adjusted too much.

[0004] However, the device lacks a protective function. In actual use, the device lacks a protective function when not in use. When the staff accidentally touches it and it falls, it is easy to cause damage to the device. Not only that, the device also lacks ventilation and heat dissipation functions. In actual use, the device cannot effectively dissipate heat. Long-term use may affect the normal operation of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a high-voltage frequency converter speed regulating device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high voltage frequency converter speed regulating device, comprising

[0008] A frequency converter housing, wherein a positioning groove is provided at the bottom of the side of the frequency converter housing, a positioning block is fixedly connected to the inner wall of the positioning groove, a rear protective cover is fixedly connected to one side of the positioning block, a fixing frame is fixedly connected to the side of the rear protective cover, a slot is provided on the front of the fixing frame, a plug board is fixedly connected to the inner wall of the slot, and one end of the plug board is fixedly connected to the front protective cover;

[0009] A rectangular groove is provided on the side of the inverter housing, a slot is provided on the inner wall of the rectangular groove, a fixing plate is fixedly connected to the inner wall of the slot, a rectangular groove is provided on the front of the fixing plate, a heat dissipation net is fixedly connected to the center of the inner wall of the rectangular groove, and a limiting block is fixedly connected to the back of the heat dissipation net.

[0010] Preferably, a display screen is fixedly connected to the top of the front side of the inverter housing, and a controller is fixedly connected to the center of the front side of the inverter housing.

[0011] Preferably, a potentiometer wire connector is fixedly connected to the bottom of the front side of the inverter housing, and a potentiometer wire connection port is provided at the bottom of the front side of the potentiometer wire connector.

[0012] Preferably, the inner wall edge of the fixing plate is fixedly connected to a limiting frame, and the back side of the limiting frame is fixedly connected to the front side edge of the heat dissipation net.

[0013] Preferably, a rectangular groove is provided on the back side of the fixing plate, and an inner wall of the rectangular groove is movably connected to a side surface of the limiting block.

[0014] Preferably, a protective shell is fixedly connected to the bottom of the inverter housing, and the back side of the protective shell is fixedly connected to the bottom edge of the front side of the inverter housing.

[0015] Preferably, the inner wall of the rear protective cover is fixedly connected to the back of the inverter housing, and the top of the inner wall of the front protective cover is fixedly connected to the top of the inverter housing.

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

[0017] 1. This high-voltage frequency converter speed regulating device is provided with a frequency converter housing, a positioning groove, a positioning block, a rear protective cover, a fixing frame, a plug plate and a front protective cover. When in use, after the staff has used the device, the positioning block at the bottom of the inner wall of the rear protective cover is aligned with the positioning groove on the frequency converter housing, and then the plug plate on the side of the front protective cover is aligned with the slot on the fixing frame to fix it, so that the front protective cover and the rear protective cover are connected to protect the frequency converter housing, and protective pads are provided on the inner walls of the front protective cover and the rear protective cover, which effectively improves the protection effect of the device.

[0018] 2. This kind of high-voltage inverter speed regulation device, through the arrangement of the inverter housing, fixed plate, heat dissipation net and limit block, when in use, when the device has been used for a long time, the staff needs to clean and maintain the heat dissipation net of the device. The staff first removes the fixed plate from the side of the inverter housing, and then slides the limit block to remove the heat dissipation net for cleaning. After cleaning, the staff puts the heat dissipation net back into the rectangular groove on the fixed plate, slides the limit block to limit the heat dissipation net, and then aligns the snap-on plate on the side of the fixed plate with the slot on the inverter housing for installation, which facilitates the staff to clean and maintain the heat dissipation net and ensures the continuous and normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the protective shell of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 This is a schematic diagram of the heat dissipation device of the utility model;

[0022] Figure 4 It is a schematic diagram of the back side of the utility model.

[0023] In the figure: 1. Inverter housing; 2. Positioning slot; 3. Positioning block; 4. Rear protective cover; 5. Fixing frame; 6. Insert plate; 7. Front protective cover; 8. Fixing plate; 9. Heat dissipation net; 10. Limit block; 11. Display screen; 12. Controller; 13. Potentiometer line connector; 14. Potentiometer line connection port; 15. Limiting frame; 16. Protective shell. 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] See also Figure 1-Figure 4As shown, a technical solution provided by the utility model is: a high-voltage frequency converter speed regulating device, comprising a frequency converter housing 1, a positioning groove 2 is provided at the bottom of the side of the frequency converter housing 1, a positioning block 3 is fixedly connected to the inner wall of the positioning groove 2, a rear protective cover 4 is fixedly connected to one side of the positioning block 3, a fixing frame 5 is fixedly connected to the side of the rear protective cover 4, a slot is provided at the front of the fixing frame 5, a plug-in plate 6 is fixedly connected to the inner wall of the slot, and a front protective cover 7 is fixedly connected to one end of the plug-in plate 6; a rectangular groove is provided at the side of the frequency converter housing 1, a slot is provided at the inner side wall of the rectangular groove, a fixing plate 8 is fixedly connected to the inner wall of the slot, a rectangular groove is provided at the front of the fixing plate 8, a heat dissipation net 9 is fixedly connected to the center of the inner wall of the rectangular groove, and a limiting block 10 is fixedly connected to the back of the heat dissipation net 9; through the arrangement of the frequency converter housing 1, the positioning groove 2, the positioning block 3, the rear protective cover 4, the fixing frame 5, the plug-in plate 6 and the front protective cover 7, when in use, when the staff has finished using the device, the positioning groove at the bottom of the inner wall of the rear protective cover 4 The positioning block 3 is aligned with the positioning slot 2 on the inverter housing 1, and then the plug plate 6 on the side of the front protective cover 7 is aligned with the slot on the fixing frame 5 to fix it, so that the front protective cover 7 and the rear protective cover 4 are connected to protect the inverter housing 1. Protective pads are provided on the inner walls of the front protective cover 7 and the rear protective cover 4, which effectively improves the protection effect of the device. Through the arrangement of the inverter housing 1, the fixing plate 8, the heat dissipation net 9 and the limiting block 10, when in use, when the device is used for a long time, the staff needs to clean and maintain the heat dissipation net of the device. The staff first removes the fixing plate 8 from the side of the inverter housing 1, and then slides the limiting block 10 to remove and clean the heat dissipation net 9. After cleaning, the staff puts the heat dissipation net 9 back into the rectangular groove on the fixing plate 8, slides the limiting block 10, limits the heat dissipation net 9, and then aligns the card plate on the side of the fixing plate 8 with the slot on the inverter housing 1 for installation, which is convenient for the staff to clean and maintain the heat dissipation net 9 and ensures the continuous normal operation of the device.

[0026] In this embodiment, preferably, a display screen 11 is fixedly connected to the top of the front side of the inverter housing 1, and a controller 12 is fixedly connected to the center of the front side of the inverter housing 1; through the arrangement of the inverter housing 1, the display screen 11 and the controller 12, when in use, the staff can understand the operating status of the device through the controller 12 and the display screen 11.

[0027] In this embodiment, preferably, a potentiometer wire connector 13 is fixedly connected to the bottom of the front side of the inverter housing 1, and a potentiometer wire connection port 14 is provided at the bottom of the front side of the potentiometer wire connector 13; through the arrangement of the inverter housing 1, the potentiometer wire connector 13 and the potentiometer wire connection port 14, when the staff needs to adjust the speed of the inverter during use, they align the connecting wire of the potentiometer with the potentiometer wire connection port 14 at the bottom of the potentiometer wire connector 13, and adjust the potentiometer to realize the speed regulation operation of the inverter.

[0028] In this embodiment, preferably, the inner wall edge of the fixed plate 8 is fixedly connected to the limiting frame 15, and the back side of the limiting frame 15 is fixedly connected to the front edge of the heat dissipation net 9; through the setting of the fixed plate 8, the limiting frame 15 and the heat dissipation net 9, when in use, the limiting frame 15 can limit the position of the heat dissipation net 9 to prevent the heat dissipation net 9 from falling off.

[0029] In this embodiment, preferably, a rectangular groove is opened on the back side of the fixed plate 8, and the inner wall of the rectangular groove is movably connected to the side of the limit block 10; through the setting of the fixed plate 8 and the limit block 10, when in use, the staff slides the limit block 10 in the rectangular groove on the back side of the fixed plate 8 to limit the heat dissipation net 9.

[0030] In this embodiment, preferably, a protective shell 16 is fixedly connected to the bottom of the inverter housing 1, and the back of the protective shell 16 is fixedly connected to the front bottom edge of the inverter housing 1; through the arrangement of the inverter housing 1 and the protective shell 16, when in use, the protective shell 16 can isolate and protect the potentiometer line connector 13 when the device is not in use.

[0031] In this embodiment, preferably, the inner wall of the rear protective cover 4 is fixedly connected to the back of the inverter housing 1, and the top of the inner wall of the front protective cover 7 is fixedly connected to the top of the inverter housing 1; through the arrangement of the rear protective cover 4, the inverter housing 1 and the front protective cover 7, the connectivity between the devices is improved during use.

[0032] When a high-voltage frequency converter speed regulating device of the present embodiment is in use, when the staff needs to regulate the speed of the frequency converter, the connecting wire of the potentiometer is aligned with the potentiometer wire connection port 14 at the bottom of the potentiometer wire connector 13, and the potentiometer is adjusted to realize the speed regulation operation of the frequency converter. The protective shell 16 can isolate and protect the potentiometer wire connector 13 when the device is not in use. The staff can understand the operating status of the device through the controller 12 and the display screen 11. When the device is used for a long time, the staff needs to clean and maintain the heat dissipation net of the device. The staff first removes the fixing plate 8 from the side of the frequency converter housing 1, and then slides the limit block 10 to remove the heat dissipation net 9 for cleaning. After the staff finishes cleaning, Finally, the heat dissipation net 9 is placed back into the rectangular groove on the fixed plate 8, the sliding limit block 10 is used to limit the heat dissipation net 9, and then the snap-in plate on the side of the fixed plate 8 is aligned with the slot on the inverter housing 1 for installation, which is convenient for the staff to clean and maintain the heat dissipation net 9 and ensure the continuous normal operation of the device. When the staff has finished using the device, the positioning block 3 at the bottom of the inner wall of the rear protective cover 4 is aligned with the positioning slot 2 on the inverter housing 1, and then the plug-in plate 6 on the side of the front protective cover 7 is aligned with the slot on the fixed frame 5 to fix it, so that the front protective cover 7 and the rear protective cover 4 are connected to protect the inverter housing 1. Protective pads are provided on the inner walls of the front protective cover 7 and the rear protective cover 4, which effectively improves the protection effect of the device.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high voltage frequency converter speed regulating device, characterized in that: include A frequency converter housing (1), wherein a positioning groove (2) is provided at the bottom of the side of the frequency converter housing (1), a positioning block (3) is fixedly connected to the inner wall of the positioning groove (2), a rear protective cover (4) is fixedly connected to one side of the positioning block (3), a fixing frame (5) is fixedly connected to the side of the rear protective cover (4), a slot is provided on the front of the fixing frame (5), a plug board (6) is fixedly connected to the inner wall of the slot, and one end of the plug board (6) is fixedly connected to the front protective cover (7); A rectangular groove is provided on the side of the inverter housing (1), a slot is provided on the inner wall of the rectangular groove, a fixing plate (8) is fixedly connected to the inner wall of the slot, a rectangular groove is provided on the front of the fixing plate (8), a heat dissipation net (9) is fixedly connected to the center of the inner wall of the rectangular groove, and a limiting block (10) is fixedly connected to the back of the heat dissipation net (9).

2. A high-voltage frequency converter speed regulating device according to claim 1, characterized in that: A display screen (11) is fixedly connected to the top of the front side of the inverter housing (1), and a controller (12) is fixedly connected to the center of the front side of the inverter housing (1).

3. A high-voltage frequency converter speed regulating device according to claim 1, characterized in that: A potentiometer wire connector (13) is fixedly connected to the bottom of the front side of the inverter housing (1), and a potentiometer wire connection port (14) is provided at the bottom of the front side of the potentiometer wire connector (13).

4. A high-voltage frequency converter speed regulating device according to claim 1, characterized in that: The inner wall edge of the fixing plate (8) is fixedly connected to a limiting frame (15), and the back side of the limiting frame (15) is fixedly connected to the front edge of the heat dissipation net (9).

5. The high-voltage frequency converter speed regulating device according to claim 1, characterized in that: A rectangular groove is provided on the back of the fixing plate (8), and the inner wall of the rectangular groove is movably connected to the side surface of the limiting block (10).

6. A high-voltage frequency converter speed regulating device according to claim 1, characterized in that: A protective shell (16) is fixedly connected to the bottom of the inverter housing (1), and the back of the protective shell (16) is fixedly connected to the bottom edge of the front side of the inverter housing (1).

7. A high-voltage frequency converter speed regulating device according to claim 1, characterized in that: The inner wall of the rear protective cover (4) is fixedly connected to the back of the inverter housing (1), and the top of the inner wall of the front protective cover (7) is fixedly connected to the top of the inverter housing (1).

Images