Cooling heat dissipation structure and cooling heat dissipation frequency conversion all-in-one machine

Abstract

The invention discloses a cooling heat dissipation structure and a cooling heat dissipation frequency conversion all-in-one machine, is used for solving the technical problem that fine parts in a frequency converter cannot be effectively cooled, and belongs to the technical field of heat dissipation devices. The device comprises a permanent magnet synchronous motor and a frequency converter, the upper surface of the permanent magnet synchronous motor is fixedly connected with the bottom surface of a box body of the frequency converter through a connecting frame, a cooling heat dissipation structure is arranged in the frequency converter, first heat dissipation holes are formed in the frequency converter, and the cooling heat dissipation structure is electrically connected with an internal power supply of the frequency converter. The cooling heat dissipation structure is provided with a movable heat dissipation fan set. The cooling heat dissipation structure is arranged in the frequency converter, the multiple movable heat dissipation fan sets are used for rotating heat dissipation, and when the local temperature rises, the sliding blocks and the fans move to the corresponding positions, and the fans are rotated for heat dissipation.

Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation devices and relates to a frequency converter, in particular to a cooling and heat dissipation structure and a cooling and heat dissipation frequency converter all-in-one machine. Background Art

[0002] As the main control electrical product for driving motors, frequency converters are widely used in rail transit, wind power generation, engineering machinery, industrial electric drives and other fields. The "integration" of high-performance motor systems has become the trend of industrial high-efficiency motors and the development direction of the next generation of electric drive systems. Due to the complex production conditions, large loads and dynamic changes of frequency converters, the integration of various heat-generating components has led to deterioration of heat dissipation conditions, resulting in complex temperature rise distribution of frequency converters, which seriously affects the operational stability.

[0003] A frequency conversion all-in-one machine heat dissipation mechanism with application number 201921654647.0 is installed on the frequency conversion all-in-one machine, including a heat sink, which is installed on the frequency converter of the frequency conversion all-in-one machine; a first fan is installed on the motor of the frequency conversion all-in-one machine, the first fan is fixed to the rear end of the main shaft of the motor, a cover is installed at the rear end of the motor, the first fan is located in the cover, and the cover is cylindrical; a heat dissipation duct is arranged in the heat sink, the heat dissipation duct is arranged vertically, and the port is located on the end surface of the heat sink, a second fan is installed on the end surface of the heat sink, the heat sink is located directly above the cover, the heat sink includes a first panel and a second panel, the first panel and the second panel are parallel to each other, a partition is installed in the interval arranged between the first panel and the second panel, the two ends of the partition are respectively connected to the first panel and the second panel, a plurality of partitions are arranged at intervals, the heat dissipation duct is located between adjacent partitions, and the second fan is installed at the bottom end of the heat sink.

[0004] The above device has the advantages of simple structure, low cost and ability to meet the heat dissipation performance requirements. When cooling the inverter, the above device uses a second fan to blow air to dissipate heat from the inverter, but it cannot fully cover the key components inside the inverter, thereby failing to ensure that the fine parts inside the inverter can also be effectively cooled, reducing the heat dissipation efficiency and heat dissipation area, thereby causing the performance of the inverter to decline or be damaged due to local overheating, and there are certain shortcomings. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a cooling and heat dissipation structure and a cooling and heat dissipation frequency conversion all-in-one machine, which are used to solve the technical problem that the tiny parts inside the inverter cannot be effectively cooled, thereby preventing the inverter from being overheated locally and causing performance degradation or damage to the frequency conversion all-in-one machine.

[0006] The present invention is achieved by adopting the following technical solutions: A cooling and heat dissipation structure comprises a plug board and a heat dissipation fan group, wherein the heat dissipation fan group comprises a third fan group.

[0007] A third handle is fixed on the outer side of the plug board, and a first square tube is fixedly connected to one end of the top of the inner side of the plug board, and the length direction of the first square tube is perpendicular to the board surface of the plug board.

[0008] A heat dissipation motor is installed at one end inside the first square tube, and a screw rod is installed at the output end of the heat dissipation motor. The screw rod is rotatably connected to the other end of the first square tube, and a first slider is threadedly connected to the outer surface of the screw rod. A third fan group is fixedly connected to the bottom surface of the first slider, and the first slider is slidably connected to the inside of the first square tube.

[0009] When in use, start the cooling motor and the cooling fan group, the cooling motor drives the screw to rotate, the screw rotation drives the first slider to move, the third fan group and the first slider move synchronously, and the third fan group dissipates heat for the components that need heat dissipation on the path during the movement.

[0010] Further preferably, the cooling fan group also includes a first fan group and a second fan group; a second square tube is fixedly connected to the other end of the top of the inner side of the plug plate, the length direction of the second square tube is perpendicular to the board surface of the plug plate, and a sliding rod is commonly fixedly connected to the two ends inside the second square tube, the sliding rod is slidably connected to a second slider, and the second fan group is fixedly connected to the bottom surface of the second slider; the first fan group is commonly connected between the first slider and the second slider.

[0011] Further preferably, the third fan group blows from one end of the plugboard to the other end, the second fan group blows from the other end of the plugboard to one end, and the first fan group blows from the top of the plugboard to the bottom.

[0012] Further preferably, the board surface of the plug board is provided with a through second heat dissipation hole, and two vertical board edges of the plug board are provided with grooves.

[0013] Further preferably, the heat dissipation motor and the heat dissipation fan group are both electrically connected to a controller.

[0014] A cooling and heat dissipation frequency conversion integrated machine based on the above-mentioned cooling and heat dissipation structure includes a permanent magnet synchronous motor and a frequency converter, the upper surface of the permanent magnet synchronous motor and the bottom surface of the frequency converter case are fixedly connected by a connecting frame, one surface of the frequency converter case is composed of a plug plate of the cooling and heat dissipation structure described in any of the above-mentioned technical solutions, the cooling fan group of the cooling and heat dissipation structure is inserted into the interior of the frequency converter, at least one surface of the frequency converter case is provided with a through first heat dissipation hole, and the cooling and heat dissipation structure is electrically connected to the internal power supply of the frequency converter.

[0015] When the temperature inside the inverter increases, the cooling structure is started, and the cooling fan group that can move in the cooling structure cools down the inside of the inverter. The hot air is blown out of the inverter through the first heat dissipation hole by the cooling fan group.

[0016] Further preferably, a quick release mechanism is provided on the outer side of the plug plate, and the quick release mechanism includes a connecting plate and a connecting block. One end of the inner plate surface of the connecting plate is fixedly connected to a limited fixing rod, and the plug plate is provided with a protruding sleeve at the position of the limited fixing rod. The limited fixing rod is inserted into the protruding sleeve to fix the plug plate.

[0017] A connecting ring is fixed to the other end of the inner plate surface of the connecting plate, a quick-release bearing is assembled in the connecting ring, one end of the telescopic rod is fixedly connected to the inner ring of the quick-release bearing, the other end of the telescopic rod is fixedly connected to the connecting block, the connecting block is arranged on the side of the inverter case perpendicular to the plug-in plate, and a spring is fixedly connected between the connecting block and the connecting ring.

[0018] Further preferably, there are two quick release mechanisms, which are respectively arranged on both sides of the plug plate, and a second handle is arranged on the outer side of the connecting plate.

[0019] Further preferably, the number of the connecting frames is two.

[0020] Further preferably, the top of the inverter case is hinged with a case cover by a hinge, a first handle is fixedly connected to the upper side of the case cover, a buckle nose is provided on one side of the opening of the case cover, a buckle seat extends outward from the top of one side of the inverter case, the buckle nose is assembled in the buckle seat, and the buckle nose and the buckle seat form a ball-bump buckle case lock.

[0021] Further preferably, first heat dissipation holes are arranged on all sides of the inverter housing except for the side where the plug board is arranged.

[0022] The present invention, through the cooling and heat dissipation structure, utilizes multiple groups of movable heat dissipation fan groups (including a first fan group, a second fan group, and a third fan group) to comprehensively cover the key components such as rectification and inversion inside the inverter. Both large modules and tiny components can be effectively cooled, thereby improving the heat dissipation efficiency and heat dissipation area, and effectively preventing equipment performance degradation or damage caused by local overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the frequency converter of the present invention.

[0027] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the frequency converter of the present invention.

[0028] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at point A in the middle.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the cooling and heat dissipation structure of the present invention.

[0030] Figure 6 For the present invention Figure 2 Enlarged diagram of the middle box lock.

[0031] In the figure: 1-permanent magnet synchronous motor; 2-connecting frame; 3-inverter; 4-box cover; 5-first handle; 6-box lock; 601-buckle seat; 602-buckle nose; 603-bumper; 7-quick release mechanism; 701-connecting block; 702-spring; 703-connecting ring; 704-telescopic rod; 705-connecting plate; 706-second handle; 707-protruding sleeve; 8-cooling and heat dissipation structure; 801-plug plate; 802-second heat dissipation hole; 803-first square tube; 804-heat dissipation motor; 805-screw rod; 806-first slider; 807-first fan group; 808-second slider; 809-sliding rod; 810-second square tube; 811-second fan group; 812-third fan group; 813-third handle; 9-first heat dissipation hole. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0033] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0035] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] A cooling and heat dissipation structure, such as Figure 5 shown.

[0037] In the first embodiment, the cooling and heat dissipation structure 8 includes an insert board 801 and a heat dissipation fan group. The heat dissipation fan group includes a third fan group 812 . The heat dissipation fan group can be installed on the board surface of the insert board 801 .

[0038] A third handle 813 is fixed to the outside of the plug board 801 to facilitate the installation and disassembly of the cooling and heat dissipation structure 8. The design of the third handle 813 is convenient for the user to insert or remove the plug board 801. A first square tube 803 is fixedly connected to the top end of the inner side of the plug board 801, and the length direction of the first square tube 803 is perpendicular to the board surface of the plug board 801.

[0039] A heat dissipation motor 804 is installed at one end inside the first square tube 803, and a screw rod 805 is installed at the output end of the heat dissipation motor 804. The screw rod 805 is rotatably connected to the other end of the first square tube 803. The outer surface of the screw rod 805 is threadedly connected to a first slider 806. The bottom surface of the first slider 806 is fixedly connected to the third fan group 812. The first slider 806 is slidably connected to the inside of the first square tube 803.

[0040] The cooling fan group also includes a first fan group 807 and a second fan group 811; a second square tube 810 is fixedly connected to the other end of the top of the inner side of the plug board 801, the length direction of the second square tube 803 is perpendicular to the board surface of the plug board 801, and a sliding rod 809 is fixedly connected to both ends of the second square tube 810. The sliding rod 809 passes through the second slider 808, and the inside of the second slider 808 is slidably connected to the sliding rod 809, and the bottom surface of the second slider 808 is fixedly connected to the second fan group 811; the first fan group 807 is connected between the first slider 806 and the second slider 808. The third fan group 813 blows from one end of the plug board 801 to the other end, the second fan group 811 blows from the other end of the plug board 801 to one end, and the first fan group 807 blows from the top of the plug board 801 to the bottom.

[0041] The board surface of the plug board 801 is provided with a through second heat dissipation hole 802, and two vertical board edges of the plug board 801 are provided with grooves, and the design of the grooves facilitates the assembly of the plug board 801 with other components.

[0042] The heat dissipation motor 804 and the heat dissipation fan group are both electrically connected to a controller, and the controller can detect that when the temperature of the heat dissipation component is too high, the heat dissipation motor and the heat dissipation fan group can be automatically started.

[0043] The inner wall of the first square tube 803 of this embodiment is equipped with a heat dissipation motor 804 through a mounting seat. The output end of the heat dissipation motor 804 is connected to one end of a screw rod 805 through a coupling. The other end of the screw rod 805 is rotatably connected to the other end of the first square tube 803 through a bearing to ensure that the screw rod 805 can rotate smoothly. The heat dissipation motor 804 is used to drive the movement of the heat dissipation fan group. The screw rod 805 can rotate under the drive of the heat dissipation motor 804. During the rotation of the screw rod 805, the first slider 806 is driven to move left and right on the screw rod 805. The first square tube 803 and the second square tube 810 are both used to install the heat dissipation fan group. The slide rod 809 is used to strengthen the smooth movement of the second slide rod 808 inside the second square tube 810. The two ends of the slide rod 809 can be fixedly connected to the second square tube 810 by welding to strengthen the stability and reliability of the structure. The heat dissipation fan group can be fixedly connected by bolts.

[0044] Embodiment 2, a cooling and heat dissipation frequency conversion integrated machine, such as Figure 1-6 shown.

[0045] The present invention comprises a permanent magnet synchronous motor 1 and a frequency converter 3, wherein the upper surface of the permanent magnet synchronous motor 1 and the bottom surface of the case of the frequency converter 3 are fixedly connected by a connecting frame 2, one surface of the case of the frequency converter 3 is composed of a plug-in board of the cooling and heat dissipation structure 8 described in the first embodiment, a cooling fan group of the cooling and heat dissipation structure 8 is inserted into the interior of the frequency converter 3, at least one surface of the case of the frequency converter 3 is provided with a through first heat dissipation hole 9, and the cooling and heat dissipation structure 8 is electrically connected to the internal power supply of the frequency converter 3. The cooling and heat dissipation structure 8 is provided with a movable cooling fan group for cooling and dissipating the frequency converter 3 to ensure its normal operation, and the fixed connection of this embodiment can be a bolt connection, and grooves are provided on both sides of the plug-in board 801 of this embodiment, and a plate body adapted to the grooves is provided on the two sides where the case of the frequency converter 3 and the plug-in board 801 are connected, so as to facilitate the insertion of the plug-in board 801 into the frequency converter 3.

[0046] The connecting frame 2 is fastened with bolts to fix the frequency converter 3 on the permanent magnet synchronous motor 1 , and the frequency converter 3 is responsible for controlling the operation of the permanent magnet synchronous motor 1 .

[0047] A quick release mechanism 7 is arranged on the outside of the plug board 801, and the quick release mechanism 7 includes a connecting plate 705 and a connecting block 701. One end of the inner plate surface of the connecting plate 705 is fixedly connected to a limiting fixing rod. The plug board 801 is provided with a protruding sleeve 707 at the position of the limiting fixing rod. The limiting fixing rod is inserted into the protruding sleeve 707 to fix the plug board 801. The design of the quick release mechanism 7 can further limit the cooling and heat dissipation structure 8.

[0048] A connecting ring 703 is fixed to the other end of the inner plate surface of the connecting plate 705, and a quick-release bearing is assembled inside the connecting ring 703. The inner ring of the quick-release bearing is fixedly connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the connecting block 701. The connecting block 701 is arranged on the side of the inverter 3 case and the plug-in board 801 that is perpendicular to the connecting block 701. A spring 702 is fixedly connected between the connecting block 701 and the connecting ring 703.

[0049] There are two quick release mechanisms 7 , which are symmetrically arranged on both sides of the plug plate 801 , and a second handle 706 is arranged on the outer side of the connecting plate 705 .

[0050] There are two connecting frames 2, which further improves the stability and reliability of the connection structure between the frequency converter 3 and the permanent magnet synchronous motor 1.

[0051] The top of the inverter 3 case is hinged with a case cover 4 through a hinge. The hinge of the case cover 4 and the inverter 3 case allows the inverter 3 to be opened and closed conveniently. The upper side of the case cover 4 is fixedly connected with a first handle 5. The case cover 4 is provided with a buckle nose 602 on one side of the opening. A buckle seat 601 is extended outward from the top of one side of the inverter 3 case. The buckle nose 602 is assembled in the buckle seat 601. The buckle nose 602 and the buckle seat 601 form a bumper 603 buckle case lock 6. The design of the case lock 6 realizes the function that the inverter 3 will not be opened at will. The case cover 4 of the inverter 3 and the inverter 3 case are connected and closed through the bumper 603 of the case lock 6. When the inverter 3 needs to be opened, it is directly pulled open through the first handle 5, which further facilitates the user to open and close the case cover 4 of the inverter 3.

[0052] Except for the surface where the plug board 801 is arranged, the other surfaces of the inverter 3 are all provided with first heat dissipation holes 9, so as to further improve the heat dissipation effect.

[0053] During use, when the cooling and heat dissipation structure 8 needs to be disassembled, the staff first pulls the second handle 706 to drive the connecting plate 705 to move outward, and then drives the connecting ring 703, the telescopic rod 704 and the spring 702 to move outward synchronously, so that the limiting fixing rod is separated from the protruding sleeve 707 of the plug board 801, thereby separating from the plug board 801; then, by rotating the second handle 706 90°, the second handle 706, the connecting plate 705, and the limiting fixing rod are in a natural vertical state downward; finally, after opening the box cover 4 of the inverter 3 through the first handle 5, the fan group and other components installed on the plug board 801 can be pulled out together through the third handle 813, thereby realizing the disassembly of the cooling and heat dissipation structure 8. The limiting fixing rod is connected to the protruding sleeve 707 of the plug board 801, which can further fix the cooling mechanism and prevent the cooling and heat dissipation structure 8 from moving after the box cover 4 is accidentally opened.

[0054] The working principle is as follows: when the internal temperature of the inverter 3 rises, the controller starts the heat dissipation motor 804, and the heat dissipation motor 804 drives the screw rod 805 to rotate. Since the screw rod 805 and the first slider 806 are threadedly connected, the first slider 806 will move linearly along the screw rod 805. At the same time, the first slider 806 is slidably connected to the slide rod 809 in the second square tube 810 through the first fan group 807 and the second slider 808, thereby ensuring the stability of the movement. As the first slider 806 moves, the third fan group 812, the first fan group 807 and the second fan group 811 will dissipate heat at different positions inside the inverter 3, thereby ensuring that all parts inside the inverter 3 can be effectively cooled.

[0055] The cooling and heat dissipation structure of the present invention is arranged inside the inverter 3, and uses multiple groups of movable heat dissipation fan groups (including the third fan group 812, the first fan group 807 and the second fan group 811) to reciprocate and blow air to dissipate heat inside the inverter 3. The heat dissipation fan group is powered by the internal power supply of the inverter 3, and the speed is controlled according to the temperature of the inverter 3. When the local temperature rises, the slider and the heat dissipation fan move to the corresponding position and rotate the fan to dissipate heat.

[0056] Specifically, the screw rod 805 is driven to rotate by the heat dissipation motor 804, driving the first slider 806 and the heat dissipation fan group connected thereto to move back and forth inside the inverter 3 to blow air for heat dissipation; the first fan group 807 moves back and forth from the top of the inverter 3 to blow air for heat dissipation, and the second fan group 811 and the third fan group 812 move back and forth on both sides of the inverter 3 to blow air for heat dissipation, thereby fully covering the key components such as rectification and inversion inside the inverter 3, and both the control module and the fine components can be effectively cooled, thereby improving the heat dissipation efficiency and the heat dissipation area, and effectively preventing the performance degradation or damage of the equipment due to local overheating.

[0057] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A cooling and heat dissipation structure, characterized in that: The cooling and heat dissipation structure (8) comprises a plug board (801) and a heat dissipation fan group, and the heat dissipation fan group comprises a third fan group (812); A third handle (813) is fixed on the outside of the plug board (801), and a first square tube (803) is fixedly connected to one end of the top of the inner side of the plug board (801), wherein the length direction of the first square tube (803) is perpendicular to the board surface of the plug board (801); A heat dissipation motor (804) is installed at one end inside the first square tube (803), a screw rod (805) is installed at the output end of the heat dissipation motor (804), the screw rod (805) is rotatably connected to the other end of the first square tube (803), a first slider (806) is threadedly connected to the outer surface of the screw rod (805), a third fan group (812) is fixedly connected to the bottom surface of the first slider (806), and the first slider (806) is slidably connected to the inside of the first square tube (803).

2. A cooling and heat dissipation structure according to claim 1, characterized in that: The cooling fan group also includes a first fan group (807) and a second fan group (811); a second square tube (810) is fixedly connected to the other end of the top of the inner side of the plug board (801); the length direction of the second square tube (803) is perpendicular to the board surface of the plug board (801); a sliding rod (809) is commonly fixedly connected to the two ends inside the second square tube (810); a second sliding block (808) is slidably connected to the outside of the sliding rod (809); and the second fan group (811) is fixedly connected to the bottom surface of the second sliding block (808); and the first fan group (807) is commonly connected between the first sliding block (806) and the second sliding block (808).

3. A cooling and heat dissipation structure according to claim 1, characterized in that: The third fan group (813) blows from one end of the plug board (801) to the other end, the second fan group (811) blows from the other end of the plug board (801) to one end, and the first fan group (807) blows from the top of the plug board (801) to the bottom.

4. A cooling and heat dissipation structure according to claim 1, characterized in that: The plug board (801) is provided with a through second heat dissipation hole (802) on its surface, and grooves are provided on two vertical board edges of the plug board (801).

5. A cooling and heat dissipation structure according to any one of claims 1 to 4, characterized in that: The heat dissipation motor (804) and the heat dissipation fan group are both electrically connected to a controller.

6. A cooling and heat dissipation frequency conversion integrated machine, comprising a permanent magnet synchronous motor (1) and a frequency converter (3), wherein the upper surface of the permanent magnet synchronous motor (1) and the bottom surface of the frequency converter (3) box are fixedly connected via a connecting frame (2), characterized in that: One surface of the inverter (3) casing is composed of a plug-in board of the cooling and heat dissipation structure (8) according to any one of claims 1 to 4, a cooling fan group of the cooling and heat dissipation structure (8) is inserted into the interior of the inverter (3), at least one surface of the inverter (3) casing is provided with a through first heat dissipation hole (9), and the cooling and heat dissipation structure (8) is electrically connected to an internal power supply of the inverter (3).

7. The cooling and heat dissipation frequency conversion integrated machine according to claim 6, characterized in that: A quick-release mechanism (7) is arranged outside the plug plate (801), the quick-release mechanism (7) comprising a connecting plate (705) and a connecting block (701), one end of the inner plate surface of the connecting plate (705) is fixedly connected to a limit fixing rod, the plug plate (801) is provided with a protruding sleeve (707) at the position of the limit fixing rod, and the limit fixing rod is inserted into the protruding sleeve (707) to fix the plug plate (801); A connecting ring (703) is fixed to the other end of the inner plate surface of the connecting plate (705), a quick-release bearing is installed inside the connecting ring (703), one end of a telescopic rod is fixedly connected to the inner ring of the quick-release bearing, the other end of the telescopic rod is fixedly connected to a connecting block (701), the connecting block (701) is arranged on a side surface perpendicular to the inverter (3) housing and the plug plate (801), and a spring (702) is fixedly connected between the connecting block (701) and the connecting ring (703).

8. The cooling and heat dissipation frequency conversion integrated machine according to claim 7, characterized in that: There are two quick-release mechanisms (7), which are respectively arranged on both sides of the plug plate (801). A second handle (706) is arranged on the outside of the connecting plate (705). There are two connecting frames (2).

9. The cooling and heat dissipation frequency conversion integrated machine according to claim 6, characterized in that: A case cover (4) is hingedly connected to the top of the inverter (3) case by a hinge, a first handle (5) is fixedly connected to the upper side of the case cover (4), a buckle nose (602) is provided on one side of the opening of the case cover (4), a buckle seat (601) is extended outward from the top of one side of the inverter (3) case, the buckle nose (602) is assembled in the buckle seat (601), and the buckle nose (602) and the buckle seat (601) form a ball (603) buckle case lock (6).

10. The cooling and heat dissipation frequency conversion integrated machine according to claim 6, characterized in that: The inverter (3) housing is provided with first heat dissipation holes (9) on all sides except the side where the plug board (801) is provided.

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