Shell structure of frequency converter

Abstract

The utility model relates to the technical field of frequency converter shells, in particular to a frequency converter shell structure which comprises a box body, two baffles penetrating through the side face of the box body are symmetrically arranged on the bottom face in the box body, a heat dissipation air channel penetrating through the box body is formed between the two baffles, a fan is arranged at one end of the heat dissipation air channel, and a plurality of cooling fins are further arranged in the heat dissipation air channel. An end cover capable of being opened and closed is arranged above the box body, and an alarm is arranged on the end cover; a plurality of wire inlet holes are formed in two side surfaces of the box body, first mounting racks are arranged at four corners of the bottom surface, a second mounting rack is arranged on one side surface, and a mounting rack detachably connected with the inner wall is arranged in the box body. The technical effects that the heat dissipation effect of the frequency converter is improved, the connection convenience and safety of external equipment are ensured, and meanwhile maintenance is convenient are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of frequency converters, in particular to a frequency converter shell structure. BACKGROUND

[0002] A frequency converter is a power control device that applies frequency conversion technology and microelectronic technology to control an AC motor by changing the frequency of the power supply.

[0003] A frequency converter mainly consists of rectification (AC to DC), filtering, inversion (DC to AC), a braking unit, a driving unit, a detection unit, and a microprocessing unit. The frequency converter adjusts the voltage and frequency of the output power supply by opening and closing IGBTs, provides the required power supply voltage for the motor according to the actual needs, and thus achieves the purposes of energy saving and speed regulation. In addition, the frequency converter has many protection functions, such as overcurrent, overvoltage, and overload protection. With the continuous improvement of industrial automation, frequency converters have been widely used.

[0004] Currently, as a core component in industrial automation control, the shell design of a frequency converter is gradually developing towards multifunctionality and high reliability while meeting the basic protection functions. However, the existing shell design still needs to be improved in terms of alarm response, heat dissipation efficiency, and installation convenience. CONTENT OF THE INVENTION

[0005] In order to solve the problems of low heat dissipation efficiency and inconvenient installation of existing frequency converters in the prior art, the present application provides a frequency converter shell structure.

[0006] The frequency converter shell structure provided by the present application adopts the following technical solution: a frequency converter shell structure, comprising a box body, two baffles are symmetrically arranged on the inside bottom surface of the box body, the two baffles penetrate the side surface of the box body, a heat dissipation air duct penetrating the box body is formed between the two baffles, and a fan is arranged at one end inside the heat dissipation air duct.

[0007] Optionally, a plurality of heat dissipation fins are uniformly and intermittently arranged inside the heat dissipation air duct.

[0008] By adopting the above technical solution, the plurality of heat dissipation fins uniformly and intermittently arranged inside the heat dissipation air duct can significantly enhance the air flow efficiency and heat dissipation effect inside the heat dissipation air duct, effectively reduce the temperature during the operation of the frequency converter, and improve the operation stability and service life of the overall device.

[0009] Optionally, a closable end cover is arranged above the box body, one end of the end cover is hinged to the box body, and the other end is provided with locking screws for locking and fixing with the box body.

[0010] By adopting the technical scheme, the openable and closable end cover arranged above the box body can facilitate the maintenance of the inside of the box body, the hinge design of one end of the end cover and the box body enables the end cover to be conveniently opened and closed, and the locking screw arranged at the other end ensures the tight connection between the end cover and the box body, thereby improving the sealing property of the shell structure.

[0011] Optionally, an alarm is fixedly arranged on one side above the end cover.

[0012] By adopting the technical scheme, the alarm fixedly arranged on one side above the end cover can monitor the working state of the frequency converter in real time and issue an alarm when an abnormality occurs, thereby improving the safety of the frequency converter; meanwhile, in combination with the openable and closable design between the end cover and the box body, the user can conveniently check and maintain the frequency converter regularly, thereby further enhancing the reliability and maintenance convenience of the equipment.

[0013] Optionally, a plurality of wire inlet holes are arranged on the opposite side surfaces of the box body.

[0014] By adopting the technical scheme, the plurality of wire inlet holes arranged on the opposite side surfaces of the box body facilitate the entry and exit of the peripheral device wire.

[0015] Optionally, a first mounting rack is arranged at each corner of the bottom surface of the box body, the first mounting rack is in a U shape and is arranged along the horizontal direction, and a waist-shaped groove is arranged on the first mounting rack.

[0016] By adopting the technical scheme, the first mounting rack arranged at each corner of the bottom surface of the box body is in a U shape and is arranged along the horizontal direction, and the waist-shaped groove is arranged on the first mounting rack, so that the frequency converter shell structure can adapt to different installation requirements when being installed, thereby improving the flexibility and adaptability of the installation.

[0017] Optionally, a second mounting rack is symmetrically arranged on both sides of one side surface of the box body, and at least two strip-shaped grooves are arranged on the second mounting rack.

[0018] By adopting the technical scheme, the second mounting rack is symmetrically arranged on one side surface of the box body, and at least two strip-shaped grooves are arranged on the second mounting rack, so that the flexible installation and adjustment of the frequency converter shell structure are realized, thereby improving the convenience and adaptability of the installation.

[0019] Optionally, an installation plate is arranged in the box body, and the installation plate is detachably connected with the inner wall of the box body.

[0020] By adopting the technical scheme, the installation rack is arranged in the box body, and the installation rack is detachably connected with the inner wall of the box body, so that the frequency converter assembly can be conveniently installed and maintained, thereby improving the installation efficiency and maintenance convenience.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. By setting two baffles symmetrically on the inside bottom of the box, a heat dissipation air duct is formed through the box, and a fan is set at one end of the air duct, which improves the air circulation inside the frequency converter, effectively enhances the heat dissipation efficiency, and further increases the heat dissipation area by setting several heat dissipation fins uniformly and at intervals in the middle of the heat dissipation air duct, thereby improving the heat exchange efficiency and ensuring the working stability of the frequency converter under high load conditions.

[0023] 2. A releasable end cover is arranged above the box, which facilitates the installation and maintenance operation of the frequency converter, and the locking and fixing structure of the end cover ensures the overall sealing of the shell structure, preventing dust and foreign matters from entering.

[0024] 3. A plurality of wire inlet holes are arranged on the side wall of the box, which enriches the types and quantity of interfaces that can be installed, facilitates the entry and exit of peripheral device wires, and meets the diversified connection requirements.

[0025] 4. The suspension type installation of the box is realized by setting the first mounting bracket and the second mounting bracket, which meets different installation requirements and facilitates installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure schematic diagram of a frequency converter shell structure in the embodiment of the present application.

[0027] Figure 2 is the front view structure schematic diagram of a frequency converter shell structure in the embodiment of the present application.

[0028] Figure 3 is the back view structure schematic diagram of a frequency converter shell structure in the embodiment of the present application.

[0029] Figure 4 is the front view internal cross-section structure schematic diagram of a frequency converter shell structure in the embodiment of the present application.

[0030] Explanation of reference numerals: 1, box; 2, end cover; 3, alarm; 4, first mounting bracket; 41, waist-shaped groove; 5, second mounting bracket; 51, strip-shaped groove; 6, heat dissipation air duct; 61, baffle; 7, heat dissipation fin; 8, fan; 9, wire inlet hole; 10, mounting plate; 11, locking screw. DETAILED DESCRIPTION

[0031] The implementation manner of the present application is described below by specific embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art according to the content disclosed in the present specification.

[0032] Please refer to Figures 1-4It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to facilitate the understanding of the content disclosed by the present specification for those skilled in the art to understand and read, and are not intended to limit the conditions for implementing the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0033] The following will be described in detail in combination with the accompanying drawings Figures 1-4 The present application is further described in detail.

[0034] The present application discloses a frequency converter shell structure.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 A frequency converter shell structure, comprising a box body 1, the inside of the box body 1 is hollow and provided with an end cover 2 on the top, the end cover 2 is connected to the box body 1 through two hinges on one side, and the other side is provided with locking screws 11 at both ends, the locking screws 11 are rotatably connected to the end cover 2, the box body 1 is provided with threaded holes matched with the locking screws 11, the upper surface of the end cover 2 is provided with an alarm 3 on one side, the alarm 3 is selected from a temperature, humidity and vibration three-in-one sensor, which can monitor multiple parameters in real time, two baffles 61 are symmetrically arranged on the bottom surface of the box body 1, the two baffles 61 extend to the outside surface of the box body 1 at both ends, a heat dissipation air duct 6 is formed between the two baffles 61 and penetrates through the box body 1, a plurality of heat dissipation fins 7 are arranged in the heat dissipation air duct 6, the plurality of heat dissipation fins 7 are connected to each other and threadedly connected to the upper end of the baffle 61, which facilitates the disassembly and assembly of the heat dissipation fins 7, a fan 8 is arranged at one end of the heat dissipation air duct 6, the fan 8 drives airflow to pass through the heat dissipation air duct 6, and the gas exchanges heat with the heat dissipation fins 7 when passing through the heat dissipation air duct 6, thereby improving the heat dissipation efficiency, a plurality of wire inlet holes 9 of different shapes and sizes are formed on the two side surfaces of the box body 1 adjacent to the heat dissipation air duct 6, the wire inlet holes 9 are used for the entry and exit of peripheral device wires, first mounting brackets 4 are arranged at the four corners of the bottom surface of the box body 1, the first mounting brackets 4 are U-shaped connecting pieces, the connecting pieces are horizontally arranged and the openings thereof face away from the box body 1, the upper side of the connecting piece is welded to the bottom surface of the box body 1, and a waist-shaped groove 41 is formed on the lower side surface of the connecting piece, second mounting brackets 5 are arranged on the other side surfaces of the box body 1 adjacent to the side surfaces having the wire inlet holes 9, the second mounting brackets 5 are rectangular frames protruding from the side surfaces of the box body 1, one side of the rectangular frame is open, and at least two strip-shaped grooves 51 are arranged in parallel on the side surface of the rectangular frame away from the box body 1.

[0036] Referring to Figure 4 The box 1 is internally provided with a mounting plate 10, which is connected to the inner wall of the box 1 by bolts, and can be arbitrarily adjusted in position according to the mounting requirements of electronic components in the frequency converter, thereby meeting different mounting requirements.

[0037] In summary, the application improves the air flow in the frequency converter by internally providing two baffles on the bottom surface of the box, forming a heat dissipation air duct through the box and providing a fan at one end of the air duct, effectively enhancing the heat dissipation efficiency. A plurality of heat dissipation fins are evenly and spacedly arranged in the middle of the heat dissipation air duct, further increasing the heat dissipation area and improving the heat exchange efficiency, ensuring the working stability of the frequency converter under high load conditions. The box is provided with an openable end cover above, facilitating the installation and maintenance operation of the frequency converter, and the locking and fixing structure of the end cover ensures the overall sealing of the shell structure, preventing dust and foreign matter from entering. A plurality of wire entry holes are provided on the side wall of the box, enriching the types and number of interfaces that can be installed, facilitating the entry and exit of peripheral device wires, and meeting the diversified connection requirements. The first mounting bracket and the second mounting bracket are provided to achieve the suspension installation of the box, meeting different installation requirements and facilitating installation and maintenance. Therefore, the application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0038] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the application should be covered within the protection scope of the application.

Claims

1. A frequency inverter housing structure, characterized by, Including box (1), the inside bottom surface of box (1) is provided with two baffles (61) symmetrically, two baffles (61) penetrate the side of box (1), the heat dissipation air duct (6) that is formed between two baffles (61) penetrates the box (1), the inside one end of heat dissipation air duct (6) is provided with fan (8).

2. A frequency converter housing structure according to claim 1, characterized in that: The inside middle of heat dissipation air duct (6) is evenly spaced and provided with several heat dissipation fins (7).

3. The inverter housing structure of claim 1, wherein: The top of box (1) is provided with openable end cover (2), one end of end cover (2) is hinged to box (1), and the other end is provided with locking screw (11) for locking and fixing with box (1).

4. A frequency converter housing structure according to claim 3, characterized in that: The top of end cover (2) is fixedly provided with alarm (3) on one side.

5. The inverter housing structure of claim 1, wherein: The surface of opposite two sides of box (1) is provided with several wire inlet holes (9).

6. The inverter housing structure of claim 1, wherein: The bottom surface of box (1) is provided with first mounting bracket (4) at four corners, first mounting bracket (4) is U-shaped and is arranged along horizontal direction, and waist-shaped groove (41) is formed in first mounting bracket (4).

7. The inverter housing structure of claim 1, wherein: The two sides of one side surface of box (1) are symmetrically provided with second mounting bracket (5), and at least two strip-shaped grooves (51) are formed in second mounting bracket (5).

8. The inverter housing structure of claim 1, wherein: The inside of box (1) is provided with mounting plate (10), and mounting plate (10) is detachably connected with the inner wall of box (1).

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