Multi-protection frequency converter cooling device

Abstract

The utility model belongs to the technical field of cooling devices, and discloses a multi-protection frequency converter cooling device which comprises a shell, the left side and the right side of the front end of the shell are respectively provided with a heat dissipation opening, the interior of the shell is fixedly connected with a cooling device body in a sleeved mode, and the inner wall of the left side of the shell is provided with a sliding groove. And the bottom end of the interior of the sliding groove is movably sleeved with a sliding block, and a protection plate is fixedly installed at the right end of the sliding block. Through the arrangement of the protection plate, the round rod, the driving motor, the rotating rod and the long groove, when the driving motor is started, the driving shaft drives the rotating rod to rotate, and due to the fact that the outer surface of the long groove is movably connected with the inner surface of the round rod in a sleeved mode, under the action of the rotating rod, the inner wall of the long groove generates thrust on the round rod to push the round rod to drive the protection plate to move; the protection plate in the closed state can achieve dustproof protection when the frequency converter cooling device is idle, and external floating dust and other impurities are prevented from entering the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling devices, and particularly relates to a frequency converter cooling device with multiple protections. Background Technique

[0002] A frequency converter is a power control device that applies frequency conversion technology and microelectronics technology to control an AC motor by changing the frequency of the motor's working power supply. It mainly consists of a rectifier, a filter, an inverter, a braking unit, a drive unit, a detection unit, a microprocessing unit, etc. The frequency converter also has many protection functions, such as overcurrent protection, overvoltage protection, overload protection, etc.

[0003] With the continuous improvement of industrial automation, frequency converters have also been widely used. In order to ensure the normal operation of the frequency converter, a corresponding cooling device is needed to cool and dissipate heat from the frequency converter. In the actual use process of the existing cooling device, most of the heat dissipation ports on the outer shell adopt an open design. When the cooling device is idle and not in use, external floating dust and other impurities are likely to enter the interior of the cooling device through the heat dissipation ports, which will reduce the use effect and service life of the cooling device. Therefore, it is necessary to improve this. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a frequency converter cooling device with multiple protections, which has the advantage of providing protection.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A frequency converter cooling device with multiple protections, including a housing. Heat dissipation ports are respectively arranged on the left and right sides of the front end of the housing. A cooling device main body is fixedly sleeved inside the housing. A chute is arranged on the left inner wall of the housing. A slider is movably sleeved at the bottom end inside the chute. A protection plate is fixedly installed at the right end of the slider. The left end of the protection plate is movably connected to the left inner part of the housing. The right end of the protection plate is movably connected to the left end of the cooling device main body. The top end of the protection plate penetrates through the housing and extends to the outside of the housing. A round rod located outside the housing is fixedly sleeved at the top of the rear end of the protection plate. A driving motor is fixedly installed on the left side of the top of the rear end of the housing. The other end of the output shaft of the driving motor is fixedly sleeved with a driving shaft. A rotating rod is fixedly sleeved on the left side of the outer surface of the driving shaft. The left end of the rotating rod is movably connected to the top of the right end of the protection plate. A long groove is arranged inside the rotating rod. The rear side of the inner surface of the long groove is movably sleeved with the outer surface of the round rod.

[0006] Preferably, mounting plates are respectively fixedly installed on the right sides of the upper and lower ends of the housing. Mounting holes are arranged inside the mounting plates.

[0007] Preferably, on the upper and lower sides of the right end of the main body of the cooling device, a first conduit and a second conduit are respectively fixedly installed, and the right ends of the first conduit and the second conduit penetrate through the outer shell and extend to the outside of the outer shell.

[0008] Preferably, in the middle of the front end of the outer shell, a limiting rod is fixedly installed. On the left and right sides of the outer surface of the limiting rod, vertical rods are respectively movably sleeved. The number of the vertical rods is two. The rear ends of the two vertical rods are both movably connected to the front end of the outer shell. On the upper and lower sides of the front ends of the two vertical rods, clamping blocks located on the left and right sides of the first conduit and the second conduit are respectively fixedly installed.

[0009] Preferably, on the right side of the top end of the outer shell, an upper fixing plate is fixedly installed, and on the top of the right end of the outer shell, a lower fixing plate located below the upper fixing plate is fixedly installed.

[0010] Preferably, threaded rods are movably sleeved inside the upper fixing plate and the lower fixing plate. The top ends of the threaded rods penetrate through the upper fixing plate and extend to the outside of the upper fixing plate and are fixedly sleeved with handles. The bottom ends of the handles are movably connected to the top end of the upper fixing plate.

[0011] Preferably, a rectangular block is threadedly sleeved on the bottom of the outer surface of the threaded rod. The rear end of the rectangular block is movably connected to the front end of the outer shell. The left and right ends of the rectangular block are respectively hinged with inclined rods. The number of the inclined rods is two. The other ends of the two inclined rods are respectively hinged with the top ends of the two vertical rods.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By providing a protective plate, a round rod, a driving motor, a rotating rod and a long groove, when the driving motor is started, the driving shaft will drive the rotating rod to rotate. Since the outer surface of the long groove is movably sleeved with the inner surface of the round rod, under the action of the rotating rod, the inner wall of the long groove will generate a thrust on the round rod, pushing the round rod to drive the protective plate to move, thereby opening the protective plate. The protective plate in the closed state can achieve dust protection when the frequency converter cooling device is idle, preventing the entry of external floating dust and other impurities.

[0014] 2. By providing vertical rods, clamping blocks, threaded rods, rectangular blocks and inclined rods, when the handle is rotated, the threaded rod will rotate. Since the outer surface of the threaded rod is threadedly sleeved with the inside of the rectangular block, as the threaded rod rotates, the rectangular block will drive the top end of the inclined rod to move upward, so that the bottom end of the inclined rod generates a pulling force on the vertical rod, pulling the two vertical rods to drive the clamping blocks to move towards each other, thereby realizing auxiliary clamping of the connection between the first conduit, the second conduit and the external conduit by means of the clamping blocks, and further strengthening the protection of the connection part. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structural view of the side of the present utility model;

[0017] Figure 3 is a schematic structural view of the side of the present utility model;

[0018] Figure 4 is a schematic cross-sectional structural view of the front of the present utility model;

[0019] Figure 5 is Figure 4 a partially enlarged schematic structural view of part A in

[0020] In the figure: 1, outer shell; 2, heat dissipation port; 3, main body of the cooling device; 4, sliding groove; 5, slider; 6, protective plate; 7, round rod; 8, drive motor; 9, drive shaft; 10, rotating rod; 11, long groove; 12, mounting plate; 13, mounting hole; 14, first conduit; 15, second conduit; 16, limiting rod; 17, vertical rod; 18, clamping block; 19, upper fixing plate; 20, lower fixing plate; 21, threaded rod; 22, handle; 23, rectangular block; 24, inclined rod. Detailed Description of the Preferred Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Such as Figures 1 to 5As shown in the figure, the utility model provides a frequency converter cooling device with multiple protections, including a housing 1. Heat dissipation openings 2 are respectively arranged on the left and right sides of the front end of the housing 1. A cooling device main body 3 is fixedly sleeved inside the housing 1. A chute 4 is arranged on the left inner wall of the housing 1. A slider 5 is movably sleeved at the bottom end inside the chute 4. A protection plate 6 is fixedly installed at the right end of the slider 5. The left end of the protection plate 6 is movably connected to the inside of the left side of the housing 1, and the right end of the protection plate 6 is movably connected to the left end of the cooling device main body 3. The top end of the protection plate 6 penetrates through the housing 1 and extends to the outside of the housing 1. A round rod 7 located outside the housing 1 is fixedly sleeved at the top of the rear end of the protection plate 6. A driving motor 8 is fixedly installed on the left side of the top of the rear end of the housing 1. The other end of the output shaft of the driving motor 8 is fixedly sleeved with a driving shaft 9. A rotating rod 10 is fixedly sleeved on the left side of the outer surface of the driving shaft 9. The left end of the rotating rod 10 is movably connected to the top of the right end of the protection plate 6. A long groove 11 is arranged inside the rotating rod 10, and the rear side of the inner surface of the long groove 11 is movably sleeved with the outer surface of the round rod 7.

[0023] When the driving motor 8 is started, it will cause the driving shaft 9 to drive the rotating rod 10 to rotate. Since a long groove 11 is arranged inside the rotating rod 10 and the inner surface of the long groove 11 is movably sleeved with the outer surface of the round rod 7, as the rotating rod 10 rotates, the inner surface of the long groove 11 will generate a thrust on the outer surface of the round rod 7, pushing the round rod 7 to move upward, so that the protection plate 6 fixedly sleeved with the round rod 7 will move together. The existence of the chute 4 and the slider 5 can limit the movement of the protection plate 6, so as to realize the dust-proof protection of the cooling device through the protection plate 6, and prevent external floating dust and other impurities from entering the cooling device main body 3 through the heat dissipation opening 2 when the cooler is not in use.

[0024] Among them, mounting plates 12 are respectively fixedly installed on the right sides of the upper and lower ends of the housing 1, and mounting holes 13 are arranged inside the mounting plates 12.

[0025] The existence of the mounting plates 12 and the mounting holes 13 will facilitate the fixing of the cooling device, and the open-type design of the mounting holes 13 can also increase the error tolerance rate during installation.

[0026] Among them, a first conduit 14 and a second conduit 15 are respectively fixedly installed on the upper and lower sides of the right end of the cooling device main body 3, and the right ends of the first conduit 14 and the second conduit 15 penetrate through the housing 1 and extend to the outside of the housing 1.

[0027] The existence of the first conduit 14 and the second conduit 15 will facilitate the connection with external conduits.

[0028] Among them, a limiting rod 16 is fixedly installed in the middle of the front end of the outer shell 1. The left and right sides of the outer surface of the limiting rod 16 are respectively movably sleeved with vertical rods 17. The number of the vertical rods 17 is two. The rear ends of the two vertical rods 17 are both movably connected to the front end of the outer shell 1. The upper and lower sides of the front ends of the two vertical rods 17 are respectively fixedly installed with clamping blocks 18 located on the left and right sides of the first conduit 14 and the second conduit 15.

[0029] When the vertical rod 17 is pulled, it will drive the clamping block 18 to move along the outer surface of the limiting rod 16.

[0030] Among them, an upper fixing plate 19 is fixedly installed on the right side of the top of the outer shell 1, and a lower fixing plate 20 is fixedly installed on the top of the right end of the outer shell 1 and located below the upper fixing plate 19.

[0031] Due to the existence of the upper fixing plate 19 and the lower fixing plate 20, they will play a role in support and fixation.

[0032] Among them, threaded rods 21 are movably sleeved inside both the upper fixing plate 19 and the lower fixing plate 20. The top ends of the threaded rods 21 penetrate through the upper fixing plate 19 and extend to the outside of the upper fixing plate 19 and are fixedly sleeved with handles 22. The bottom end of the handle 22 is movably connected to the top end of the upper fixing plate 19.

[0033] When the handle 22 is rotated, the threaded rod 21 will rotate along the inside of the upper fixing plate 19 and the lower fixing plate 20.

[0034] Among them, a rectangular block 23 is threadedly sleeved at the bottom of the outer surface of the threaded rod 21. The rear end of the rectangular block 23 is movably connected to the front end of the outer shell 1. The left and right ends of the rectangular block 23 are respectively hinged with inclined rods 24. The number of the inclined rods 24 is two. The other ends of the two inclined rods 24 are respectively hinged to the top ends of the two vertical rods 17.

[0035] When the rectangular block 23 drives the inclined rod 24 to move, the other end of the inclined rod 24 will generate a pulling force on the vertical rod 17, pulling the vertical rod 17 to move.

[0036] The working principle and usage process of the present utility model:

[0037] First, the operator connects the external catheter with the first catheter 14 and the second catheter 15. After the connection is completed, the handle 22 is rotated, causing the threaded rod 21 to rotate along the inner surfaces of the upper fixing plate 19 and the lower fixing plate 20. As a result, the rectangular block 23 threadedly sleeved on the threaded rod 21 drives one end of the inclined rod 24 to move upward along the outer surface of the housing 1. Consequently, the other end of the inclined rod 24 exerts a pulling force on the vertical rod 17, pulling the two vertical rods 17 respectively with the clamping blocks 18 to move towards each other along the outer surface of the limiting rod 16. In this way, the connection part of the first catheter 14, the second catheter 15 and the external catheter can be clamped and fixed by the clamping blocks 18, thereby providing enhanced protection for it.

[0038] Subsequently, the operator can install the frequency converter cooling device through the mounting plate 12 and the mounting holes 13. When the cooling device is operating normally, the drive motor 8 will start, causing the drive shaft 9 to drive the rotating rod 10 to rotate. As a result, the inner surface of the long groove 11 exerts a pushing force on the outer surface of the round rod 7, pushing the round rod 7 with the protective plate 6 and the slider 5 to move upward along the inner surface of the sliding groove 4, thus opening the protective plate 6. When the cooling device stops operating, the drive motor 8 is started again to make the protective plate 6 return to its original position, thereby closing the heat dissipation port 2 to prevent external floating dust and other impurities from entering the cooling device main body 3, achieving dust-proof protection for it.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frequency converter cooling device with multiple protections, comprising a housing (1), characterized in that: On the left and right sides of the front end of the housing (1), heat dissipation openings (2) are respectively provided. Inside the housing (1), a main body of a cooling device (3) is fixedly sleeved. On the left inner wall of the housing (1), a sliding groove (4) is provided. At the bottom end inside the sliding groove (4), a slider (5) is movably sleeved. On the right end of the slider (5), a protection plate (6) is fixedly installed. The left end of the protection plate (6) is movably connected to the inside of the left side of the housing (1), and the right end of the protection plate (6) is movably connected to the left end of the cooling device main body (3). The top end of the protection plate (6) penetrates through the housing (1) and extends to the outside of the housing (1). At the top of the back end of the protection plate (6), a round rod (7) located outside the housing (1) is fixedly sleeved. On the left side of the top of the back end of the housing (1), a driving motor (8) is fixedly installed. At the other end of the output shaft of the driving motor (8), a driving shaft (9) is fixedly sleeved. On the left side of the outer surface of the driving shaft (9), a rotating rod (10) is fixedly sleeved. The left end of the rotating rod (10) is movably connected to the top of the right end of the protection plate (6). Inside the rotating rod (10), a long groove (11) is provided. The rear side of the inner surface of the long groove (11) is movably sleeved with the outer surface of the round rod (7).

2. The multi-protection frequency converter cooling device according to claim 1, wherein: On the right sides of the upper and lower ends of the housing (1), mounting plates (12) are respectively fixedly installed. Inside the mounting plates (12), mounting holes (13) are provided.

3. The multi-protection frequency converter cooling device according to claim 1, characterized in that: On the upper and lower sides of the right end of the cooling device main body (3), a first conduit (14) and a second conduit (15) are respectively fixedly installed. The right ends of the first conduit (14) and the second conduit (15) penetrate through the housing (1) and extend to the outside of the housing (1).

4. A multi-protection frequency converter cooling device according to claim 1, characterized in that: In the middle of the front end of the housing (1), a limiting rod (16) is fixedly installed. On the left and right sides of the outer surface of the limiting rod (16), vertical rods (17) are respectively movably sleeved. The number of the vertical rods (17) is two. The rear ends of the two vertical rods (17) are movably connected to the front end of the housing (1). On the upper and lower sides of the front ends of the two vertical rods (17), clamping blocks (18) located on the left and right sides of the first conduit (14) and the second conduit (15) are respectively fixedly installed.

5. The multi-protection frequency converter cooling device according to claim 1, wherein: On the right side of the top end of the housing (1), an upper fixing plate (19) is fixedly installed. On the top of the right end of the housing (1), a lower fixing plate (20) located below the upper fixing plate (19) is fixedly installed.

6. The multi-protection frequency converter cooling device according to claim 5, characterized in that: Inside both the upper fixing plate (19) and the lower fixing plate (20), a threaded rod (21) is movably sleeved. The top end of the threaded rod (21) penetrates through the upper fixing plate (19) and extends to the outside of the upper fixing plate (19) and is fixedly sleeved with a handle (22). The bottom end of the handle (22) is movably connected to the top end of the upper fixing plate (19).

7. The multi-protection frequency converter cooling device according to claim 6, characterized in that: At the bottom of the outer surface of the threaded rod (21), a rectangular block (23) is threadedly sleeved. The rear end of the rectangular block (23) is movably connected to the front end of the housing (1). On the left and right ends of the rectangular block (23), inclined rods (24) are respectively hinged. The number of the inclined rods (24) is two. The other ends of the two inclined rods (24) are respectively hinged to the top ends of the two vertical rods (17).

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