Integrated frequency converter

Abstract

The utility model relates to the technical field of frequency converters, in particular to an integrated frequency converter, which comprises a power module, an electrolytic capacitor, a radiating fan, a radiator and a case steel frame, the case steel frame comprises a frame body and a shielding unit, the frame body is provided with radiating hole grooves for heat exchange, the radiating hole grooves are arranged on two sides of the frame body along the vertical direction, and the shielding unit is arranged on the frame body. On the basis of the prior art, the structure of the case steel frame of the frequency converter is improved, the heat dissipation hole grooves used for heat exchange are additionally arranged, the capacity of heat exchange between the inside and the outside of the frequency converter is remarkably improved, meanwhile, the shielding unit is further arranged, and the shielding unit is arranged on the outer side of the frame body and movably connected with the frame body. And on the basis of improving the heat dissipation capability, the shielding requirement of the case steel frame on dust can be met, so that the applicability of the frequency converter is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to an integrated frequency converter. Background Art

[0002] As a power control device that controls AC motors by changing the frequency of the motor's working power supply, frequency converters are widely used in power generation, petroleum, chemical industry and other fields. In the past, frequency converters were large in size, which limited their application.

[0003] The existing Chinese utility model patent CN 202353430 U discloses an integrated inverter, which includes a power module, an electrolytic capacitor, a heat dissipation fan, a radiator and a chassis steel frame. The heat dissipation fan is installed on the top of the chassis steel frame, and the power module, the electrolytic capacitor and the radiator are all installed inside the chassis steel frame, thereby realizing modular processing of the inverter, significantly reducing the size of the inverter, and expanding the application range of the inverter;

[0004] However, during the use of this type of inverter, it was found that although it was equipped with a cooling fan and a radiator, its chassis steel frame was a closed structure, which resulted in the heat being unable to be transferred to the outside in a timely manner. The accumulation of heat would cause the internal temperature of the inverter to rise, thereby reducing the working performance of the inverter. Utility Model Content

[0005] The utility model aims to provide an integrated frequency converter, aiming to solve the problem of insufficient heat exchange between the inside and outside of the frequency converter in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides an integrated inverter, including a power module, an electrolytic capacitor, a cooling fan, a radiator and a chassis steel frame, the chassis steel frame including a frame body provided with cooling hole grooves for heat exchange and a shielding unit, the cooling hole grooves are arranged on both sides of the frame body in a vertical direction, and the cooling hole grooves all pass through the frame body, the shielding unit is arranged on the outside of the frame body, and the shielding unit is movably connected to the frame body.

[0007] Wherein, the shielding unit includes a movable page and a driving rod, the movable page is movably connected to the frame, and the movable page fits with the heat dissipation hole groove, the driving rod is arranged on the outside of the frame, and the output end of the driving rod is connected to the movable page.

[0008] Among them, the movable page includes a placement frame, a screen and a flip cover movably connected to the screen, the placement frame is connected to the output end of the driving rod, and the placement frame is matched with the heat dissipation hole groove, the screen is arranged inside the placement frame, the flip cover is rotatably connected to the screen, and the flip cover is matched with the screen.

[0009] The placement frame has an embedded groove and a movable rod, the embedded groove is arranged at the center of the placement frame, the movable rod is arranged inside the embedded groove, and the movable rod is rotatably connected to the flip cover.

[0010] Wherein, the flip cover is also provided with a sealing gasket, which is arranged at the bottom of the flip cover, and the size of the sealing gasket is consistent with the screen.

[0011] An integrated frequency converter of the utility model improves the structure of the chassis steel frame of the frequency converter on the basis of the prior art, adds heat dissipation holes and slots for heat exchange, and significantly improves the ability of heat exchange between the inside and outside of the frequency converter. At the same time, the shielding unit is also provided, which can not only improve the heat dissipation capacity but also meet the dust shielding requirements of the chassis steel frame, thereby significantly improving the applicability of the frequency converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 The utility model is an isometric structural diagram of a first embodiment of an integrated frequency converter.

[0014] Figure 2 It is a side structural schematic diagram of a first embodiment of an integrated frequency converter of the utility model.

[0015] Figure 3 It is a schematic diagram of the axonometric structure of a second embodiment of an integrated frequency converter of the utility model.

[0016] 101- cooling fan, 102- chassis steel frame, 103- frame, 104- shielding unit, 105- cooling hole slot, 106- movable leaf, 107- driving rod, 108- mounting frame, 109- screen, 110- flip cover, 201- embedded slot, 202- movable rod, 203- sealing gasket. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] First embodiment

[0019] See also Figure 1-2 , Figure 1 is a schematic diagram of the axonometric structure of a first embodiment of an integrated frequency converter, Figure 2 The present invention is a side structural diagram of a first embodiment of an integrated frequency converter.

[0020] The utility model provides an integrated frequency converter, including a power module, an electrolytic capacitor, a heat dissipation fan 101, a radiator and a chassis steel frame 102, wherein the chassis steel frame 102 includes a frame 103 provided with heat dissipation hole grooves 105 for heat exchange and a shielding unit 104, wherein the shielding unit 104 includes a movable page 106 and a driving rod 107, wherein the movable page 106 includes a placement frame 108, a screen 109 and a flip cover 110 movably connected to the screen 109, the heat dissipation hole grooves 105 are arranged on both sides of the frame 103 in a vertical direction, and the heat dissipation hole grooves 105 all penetrate the frame 103, and the shielding unit 104 is arranged on the outside of the frame 103, and the shielding unit 104 is movably connected to the frame 103.

[0021] In this embodiment, the power module, electrolytic capacitor and radiator belong to the prior art, and therefore are not shown in the drawings in this application, and the heat dissipation fan 101 is arranged on the top of the chassis steel frame 102, and pressurized gas is input into the chassis steel frame 102, so as to achieve heat dissipation of the chassis steel frame 102, and the chassis steel frame 102 is improved, and the heat dissipation hole slot 105 is added, and the heat dissipation hole slot 105 is used to improve the heat exchange capacity of the chassis steel frame 102, and the shielding unit 104 cooperates with the heat dissipation hole slot 105, and when heat dissipation is required, the shielding unit 104 is removed from the heat dissipation hole slot 105 to meet the purpose of internal and external heat exchange of the chassis steel frame 102, and the heat dissipation hole slot 105 needs to be shielded to avoid external When dust enters, the shielding unit 104 is covered on the heat dissipation hole groove 105 to meet the dust prevention requirement, and the movable page 106 is driven by the driving rod 107. When necessary, the movable page 106 can be driven by the driving rod 107 to close the heat dissipation hole groove 105. The screen 109 and the flip cover 110 are arranged on the movable page 106. When it is necessary to meet the heat dissipation and dust protection at the same time, the mounting frame 108 can be covered on the outside of the chassis steel frame 102, and the flip cover 110 can be opened, and the screen 109 can be used to filter the dust, thereby meeting the heat dissipation and dust screening purposes of the inverter at the same time. It can be understood that the above technical solution is used to solve the problem of insufficient heat dissipation capacity existing in the prior art.

[0022] The movable page 106 is movably connected to the frame 103 , and the movable page 106 is matched with the heat dissipation hole groove 105 . The driving rod 107 is arranged on the outside of the frame 103 , and the output end of the driving rod 107 is connected to the movable page 106 .

[0023] The movable page 106 cooperates with the driving rod 107 , and the driving rod 107 drives the movable page 106 to cover the heat dissipation hole slot 105 , thereby meeting the sealing requirement of the chassis steel frame 102 .

[0024] Secondly, the placement frame 108 is connected to the output end of the driving rod 107, and the placement frame 108 is matched with the heat dissipation hole groove 105, the screen 109 is arranged inside the placement frame 108, the flip cover 110 is rotatably connected to the screen 109, and the flip cover 110 is matched with the screen 109.

[0025] After the placement frame 108 is connected to the output end of the driving rod 107, it is driven by the output end of the driving rod 107 to cover the heat dissipation hole groove 105. When it is necessary to meet the heat dissipation and sealing requirements at the same time, the flip cover 110 is opened and the screen 109 is used to screen dust.

[0026] Second embodiment

[0027] See also Figure 3 , Figure 3 The present invention is a schematic diagram of the isometric structure of a second embodiment of an integrated frequency converter.

[0028] On the basis of the first embodiment, the placement frame 108 of the present invention has an embedded groove 201 and a movable rod 202, wherein the embedded groove 201 is arranged at the center of the placement frame 108, the movable rod 202 is arranged inside the embedded groove, and the movable rod 202 is rotatably connected to the flip cover 110;

[0029] The flip cover 110 is further provided with a sealing gasket 203 , which is disposed at the bottom of the flip cover 110 , and the size of the sealing gasket 203 is consistent with that of the sieve 109 .

[0030] The embedded groove 201 is used to place the screen 109, and the movable rod 202 is connected to the flip cover 110 to meet the rotation stability requirement of the flip cover 110. The sealing gasket 203 is used to seal the screen 109 when the flip cover 110 is buckled.

[0031] An integrated frequency converter of the utility model improves the structure of the chassis steel frame 102 of the frequency converter on the basis of the prior art, and adds heat dissipation holes 105 for heat exchange, which significantly improves the heat exchange capacity of the frequency converter inside and outside. At the same time, the shielding unit 104 is also provided, which can not only improve the heat dissipation capacity but also meet the dust shielding requirements of the chassis steel frame 102, thereby significantly improving the applicability of the frequency converter.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An integrated frequency converter, comprising a power module, an electrolytic capacitor, a cooling fan, a radiator and a chassis steel frame, characterized in that: The chassis steel frame includes a frame body provided with heat dissipation holes for heat exchange and a shielding unit. The heat dissipation holes are arranged on both sides of the frame body in a vertical direction, and the heat dissipation holes pass through the frame body. The shielding unit is arranged on the outside of the frame body, and the shielding unit is movably connected to the frame body.

2. An integrated frequency converter as claimed in claim 1, characterized in that: The shielding unit includes a movable page and a driving rod, the movable page is movably connected to the frame, and the movable page is matched with the heat dissipation hole groove, the driving rod is arranged on the outside of the frame, and the output end of the driving rod is connected to the movable page.

3. An integrated frequency converter as claimed in claim 2, characterized in that: The movable page includes a placement frame, a screen and a flip cover movably connected to the screen, the placement frame is connected to the output end of the driving rod, and the placement frame is matched with the heat dissipation hole groove, the screen is arranged inside the placement frame, the flip cover is rotatably connected to the screen, and the flip cover is matched with the screen.

4. An integrated frequency converter as claimed in claim 3, characterized in that: The placement frame has an embedded groove and a movable rod, the embedded groove is arranged at the center of the placement frame, the movable rod is arranged inside the embedded groove, and the movable rod is rotatably connected with the flip cover.

5. An integrated frequency converter as claimed in claim 4, characterized in that: The flip cover is also provided with a sealing gasket, which is arranged at the bottom of the flip cover, and the size of the sealing gasket is consistent with that of the screen.

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