Convenient-to-install frequency converter for power distribution cabinet

Abstract

The utility model relates to the technical field of frequency converter installation, and discloses a convenient-to-install frequency converter for a power distribution cabinet, which comprises a frequency converter body, a control panel arranged on the upper surface of the frequency converter body, a fixed block fixedly installed on the lower surface of the frequency converter body, and a fixed plate slidably installed on the outer surface of the fixed block. A third rectangular groove is formed in the position, corresponding to the fixing block, of the fixing plate, the fixing block is slidably connected with the inner wall of the third rectangular groove, the fixing installation mechanism is arranged on the fixing plate and comprises a handle and a gear, a U-shaped groove is formed in the fixing plate, and the fixing plate is installed in the power distribution cabinet through bolts. And then a fixing block is pushed into a third rectangular groove, and a trapezoidal plate is pushed into a first rectangular groove by a spring, so that the frequency converter body is more conveniently mounted, the frequency converter body does not need to be lifted for mounting, the mounting difficulty of the frequency converter body is reduced, and the mounting efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter installation, in particular to a frequency converter which is easy to install for a power distribution cabinet. Background Art

[0002] A frequency converter (VFD), also known as a variable frequency speed controller, is a power electronic device used to control the speed of a motor. Its core technologies are frequency conversion and microelectronics, and it controls AC motors by varying the frequency of the motor's power supply.

[0003] When existing frequency converters are installed on power distribution cabinets, they are mostly installed directly into the power distribution cabinets by bolts. However, most frequency converters are larger than the power distribution cabinets and other electrical components in the power distribution cabinets. When they are installed in the power distribution cabinets, the installation space is small, the installation is more troublesome, the installation efficiency is reduced, and the use of the frequency converter is affected. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the prior art, the utility model provides a frequency converter that is easy to install for a power distribution cabinet, which solves the problem that most frequency converters are larger than the power distribution cabinet and other electrical components in the power distribution cabinet, and when they are installed in the power distribution cabinet, the installation space is small, the installation is more troublesome, the installation efficiency is reduced, and the use of the frequency converter is affected.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a frequency converter for a power distribution cabinet that is easy to install, comprising a frequency converter body, a control panel provided on the upper surface of the frequency converter body, a fixed block fixedly mounted on the lower surface of the frequency converter body, a fixed plate slidably mounted on the outer surface of the fixed block, a third rectangular groove formed on the fixed plate at a position corresponding to the fixed block, the fixed block being slidably connected to the inner wall of the third rectangular groove;

[0008] The fixed installation mechanism is provided with a fixed plate, and the fixed installation mechanism includes a handle and a gear. A U-shaped groove is opened inside the fixed plate, and the rear end of the handle slides and extends into the inside of the U-shaped groove. The gear is fixedly installed on the rear end of the handle, and the gear is located inside the U-shaped groove.

[0009] Preferably, the fixed installation mechanism also includes two tooth plates and two L-shaped connecting plates, the two tooth plates are respectively slidably installed on the upper and lower inner walls of the U-shaped groove, the two tooth plates are both meshed with the gears, the two tooth plates are arranged to rotate 180° around the gears, and the two L-shaped connecting plates are respectively fixedly installed on the opposite ends of the two tooth plates, and the two L-shaped connecting plates are both slidably connected to the inner wall of the U-shaped groove.

[0010] Preferably, the fixed installation mechanism also includes two trapezoidal plates, which are respectively fixed on the adjacent surfaces of the two L-shaped connecting plates, and the adjacent ends of the two trapezoidal plates extend to the interior of the third rectangular groove. The left and right surfaces of the fixed block are both provided with a first rectangular groove, and the two trapezoidal plates are respectively slidably plugged into the interior of the two first rectangular grooves.

[0011] Preferably, the fixed installation mechanism further includes four springs, which are fixedly installed in groups of two on the opposing surfaces of the two L-shaped connecting plates, and the opposing ends of the two groups of springs are fixedly connected to the inner wall of the U-shaped groove.

[0012] Preferably, a second rectangular groove is provided on the front inner wall of the U-shaped groove at the position corresponding to the handle, a guide limit groove is provided on the front inner wall of the second rectangular groove, a limit block is fixedly installed on the outer surface of the handle, and the limit block is slidably connected to the inside of the guide limit groove.

[0013] Preferably, four bolts are fixedly installed on the upper surface of the fixing plate in a rectangular array, the lower ends of the four bolts extend to the lower surface of the fixing plate, and the four bolts are threadedly connected to the fixing plate.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a frequency converter for a power distribution cabinet that is easy to install and has the following beneficial effects:

[0016] 1. The power distribution cabinet uses an inverter that is easy to install. The fixing plate is installed into the power distribution cabinet by bolts, and then the fixing block is pushed into the inside of the third rectangular groove, so that the spring pushes the trapezoidal plate into the inside of the first rectangular groove, so that the inverter body can be installed more conveniently. There is no need to hold the inverter body for installation, which reduces the installation difficulty of the inverter body and improves the installation efficiency of workers.

[0017] 2. The power distribution cabinet uses an inverter that is easy to install. By pulling the limit block into the guide limit groove and then pulling the gear into the second rectangular groove, the gear is moved away from between the two tooth plates to prevent the inverter body from being removed by accidentally turning the handle after installation. This reduces the safety risk of the inverter and improves the safety of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall top view of the inverter structure that is easy to install for the power distribution cabinet of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional top view of the fixed plate of the present invention;

[0020] Figure 3This is a schematic diagram of the internal structure of a frequency converter that is easy to install in a power distribution cabinet of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal cross-sectional side view of the inverter structure that is easy to install in the power distribution cabinet of the utility model.

[0022] In the figure: 1. Inverter body; 2. Control panel; 3. Fixing block; 4. Fixing plate; 5. Handle; 6. U-shaped groove; 7. Gear; 8. Tooth plate; 9. L-shaped connecting plate; 10. Trapezoidal plate; 11. First rectangular groove; 12. Spring; 13. Second rectangular groove; 14. Guide limit groove; 15. Limit block; 16. Bolt; 17. Third rectangular groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a new technical solution: a frequency converter for a power distribution cabinet that is easy to install, comprising a frequency converter body 1, a control panel 2 being provided on the upper surface of the frequency converter body 1, a fixing block 3 being fixedly mounted on the lower surface of the frequency converter body 1, a fixing plate 4 being slidably mounted on the outer surface of the fixing block 3, a third rectangular groove 17 being provided on the fixing plate 4 at a position corresponding to the fixing block 3, and the fixing block 3 being slidably connected to the inner wall of the third rectangular groove 17;

[0025] The fixed installation mechanism is provided on the fixed plate 4. The fixed installation mechanism includes a handle 5 and a gear 7. A U-shaped groove 6 is provided inside the fixed plate 4. The rear end of the handle 5 slides and extends into the interior of the U-shaped groove 6. The gear 7 is fixedly installed on the rear end of the handle 5. The gear 7 is located inside the U-shaped groove 6.

[0026] Furthermore, the fixed installation mechanism also includes two tooth plates 8 and two L-shaped connecting plates 9. The two tooth plates 8 are respectively slidably installed on the upper and lower inner walls of the U-shaped groove 6. The two tooth plates 8 are both meshed and connected with the gear 7. The two tooth plates 8 are set to rotate 180° around the gear 7. The two L-shaped connecting plates 9 are respectively fixedly installed on the opposite ends of the two tooth plates 8. The two L-shaped connecting plates 9 are both slidably connected to the inner wall of the U-shaped groove 6.

[0027] Furthermore, the fixed installation mechanism also includes two trapezoidal plates 10, which are respectively fixed on the adjacent surfaces of the two L-shaped connecting plates 9, and the adjacent ends of the two trapezoidal plates 10 extend to the inside of the third rectangular groove 17 respectively. The left and right surfaces of the fixed block 3 are both provided with a first rectangular groove 11, and the two trapezoidal plates 10 are respectively slidably plugged into the inside of the two first rectangular grooves 11.

[0028] Furthermore, the fixed installation mechanism also includes four springs 12, which are fixedly installed on the opposing surfaces of the two L-shaped connecting plates 9 in groups of two, and the opposing ends of the two groups of springs 12 are fixedly connected to the inner wall of the U-shaped groove 6.

[0029] Furthermore, the fixing plate 4 is installed in the distribution cabinet by means of the bolts 16, and then the fixing block 3 is pushed into the inside of the third rectangular groove 17, so that the spring 12 pushes the trapezoidal plate 10 into the inside of the first rectangular groove 11, so as to make the installation of the inverter body 1 more convenient. There is no need to lift the inverter body 1 for installation, which reduces the installation difficulty of the inverter body 1 and improves the installation efficiency of the workers.

[0030] Furthermore, a second rectangular groove 13 is provided on the front inner wall of the U-shaped groove 6 at a position corresponding to the handle 5, and a guide limit groove 14 is provided on the front inner wall of the second rectangular groove 13. A limit block 15 is fixedly installed on the outer surface of the handle 5, and the limit block 15 is slidably connected to the inside of the guide limit groove 14.

[0031] Furthermore, four bolts 16 are fixedly installed on the upper surface of the fixing plate 4 in a rectangular array. The lower ends of the four bolts 16 extend to the lower surface of the fixing plate 4 , and the four bolts 16 are threadedly connected to the fixing plate 4 .

[0032] Furthermore, by pulling the limit block 15 into the guide limit groove 14 and then pulling the gear 7 into the second rectangular groove 13, the gear 7 is moved away from between the two tooth plates 8 to prevent the handle 5 from being accidentally turned after installation, thereby preventing the inverter body 1 from being removed. This reduces the safety risk of the inverter and improves the safety of the inverter.

[0033] Working principle: When using this inverter, first install the fixing plate 4 to the position where the inverter body 1 needs to be installed through four bolts 16. After the installation is completed, pick up the inverter body 1, align the fixing block 3 on the rear surface of the inverter body 1 with the third rectangular groove 17, and push the fixing block 3 into the inside of the third rectangular groove 17. The fixing block 3 squeezes the inclined surface of the two trapezoidal plates 10 inside the third rectangular groove 17, which will make the two trapezoidal plates 10 enter the inside of the U-shaped groove 6. The two trapezoidal plates 10 move away from each other, so that the two L-shaped connecting plates 9 move away from each other, thereby making the two L-shaped connecting plates 9 press against the four elastic The springs 12 are squeezed to compress the four springs 12. When the fixing block 3 completely enters the third rectangular groove 17, the first rectangular grooves 11 on the left and right surfaces of the fixing block 3 are aligned with the positions of the two trapezoidal plates 10. The squeezing of the two trapezoidal plates 10 disappears, and the squeezing of the four springs 12 disappears at the same time. The four springs 12 push the two L-shaped connecting plates 9 closer to each other, so that the two trapezoidal plates 10 on the two L-shaped connecting plates 9 are closer to each other, so that the two trapezoidal plates 10 enter the interior of the two first rectangular grooves 11, so that the two trapezoidal plates 10 fix the fixing block 3, thereby fixing the inverter body 1 to the fixing plate 4, the inverter body 1 is fixedly installed inside the power distribution cabinet more quickly. When the inverter body 1 needs to be disassembled, the handle 5 can be pushed backward, so that the handle 5 drives the limit block 15 fixedly installed on the handle 5 to move backward inside the guide limit groove 14. During the movement, the gear 7 fixedly installed at the other end of the handle 5 moves synchronously, so that the gear 7 enters between the two tooth plates 8, so that the gear 7 and the two tooth plates 8 are re-engaged. When the gear 7 reaches the rear inner wall of the U-shaped groove 6, the limit block 15 leaves the inside of the guide limit groove 14. At this time, the handle 5 can be turned to rotate the gear 7, driving The two tooth plates 8 move away from each other, so that the two L-shaped connecting plates 9 fixedly connected to the tooth plates 8 move away from each other, and the four springs 12 are squeezed, so that the two trapezoidal plates 10 fixedly connected at the rear ends of the two L-shaped connecting plates 9 move away from each other, so that the two trapezoidal plates 10 leave the inside of the two first rectangular grooves 11, so that the two trapezoidal plates 10 fix the fixed block 3. At this time, the inverter body 1 and the fixed block 3 can be removed from the fixed plate 4, and then the handle 5 is pulled downward to make the limit block 15 enter the inside of the guide limit groove 14, so that the gear 7 enters the inside of the second rectangular groove 13, which is very convenient to install and disassemble.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frequency converter for a power distribution cabinet that is easy to install, comprising a frequency converter body (1), a control panel (2) being provided on the upper surface of the frequency converter body (1), and characterized in that: A fixing block (3) is fixedly mounted on the lower surface of the inverter body (1); a fixing plate (4) is slidably mounted on the outer surface of the fixing block (3); a third rectangular groove (17) is provided on the fixing plate (4) at a position corresponding to the fixing block (3); and the fixing block (3) is slidably connected to the inner wall of the third rectangular groove (17); The fixed installation mechanism is provided on a fixed plate (4), and comprises a handle (5) and a gear (7). A U-shaped groove (6) is provided inside the fixed plate (4), and the rear end of the handle (5) slides and extends into the interior of the U-shaped groove (6). The gear (7) is fixedly installed on the rear end of the handle (5), and the gear (7) is located inside the U-shaped groove (6).

2. The frequency converter for a power distribution cabinet that is easy to install according to claim 1, characterized in that: The fixed installation mechanism further comprises two tooth plates (8) and two L-shaped connecting plates (9), the two tooth plates (8) being slidably mounted on the upper and lower inner walls of the U-shaped groove (6), the two tooth plates (8) being meshedly connected with the gear (7), the two tooth plates (8) being arranged to rotate 180° with the gear (7) as a circle, the two L-shaped connecting plates (9) being fixedly mounted on the opposite ends of the two tooth plates (8), and the two L-shaped connecting plates (9) being slidably connected with the inner wall of the U-shaped groove (6).

3. The frequency converter for a power distribution cabinet that is easy to install according to claim 2, characterized in that: The fixed installation mechanism further comprises two trapezoidal plates (10), the two trapezoidal plates (10) being fixedly installed on adjacent surfaces of the two L-shaped connecting plates (9), the adjacent ends of the two trapezoidal plates (10) respectively extending to the inside of the third rectangular groove (17), the left and right surfaces of the fixed block (3) are both provided with first rectangular grooves (11), and the two trapezoidal plates (10) are respectively slidably plugged into the inside of the two first rectangular grooves (11).

4. The frequency converter for a power distribution cabinet that is easy to install according to claim 1, characterized in that: The fixed installation mechanism also includes four springs (12), which are fixedly installed in groups of two on the opposing surfaces of the two L-shaped connecting plates (9), and the opposing ends of the two groups of springs (12) are fixedly connected to the inner wall of the U-shaped groove (6).

5. The frequency converter for a power distribution cabinet that is easy to install according to claim 1, characterized in that: A second rectangular groove (13) is provided on the front inner wall of the U-shaped groove (6) at a position corresponding to the handle (5), a guide limit groove (14) is provided on the front inner wall of the second rectangular groove (13), a limit block (15) is fixedly mounted on the outer surface of the handle (5), and the limit block (15) is slidably connected to the inside of the guide limit groove (14).

6. The frequency converter for a power distribution cabinet that is easy to install according to claim 1, characterized in that: Four bolts (16) are fixedly mounted on the upper surface of the fixing plate (4) in a rectangular array, the lower ends of the four bolts (16) all extend to the lower surface of the fixing plate (4), and the four bolts (16) are all threadedly connected to the fixing plate (4).

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