CN221670277U - A heat dissipation structure of industrial frequency inverter - Google Patents

Abstract

The utility model discloses a heat dissipation structure of an industrial frequency inverter, comprising a shell, an air inlet device, a filter device and a heat dissipation device. The utility model is connected with a through hole through a spring plunger on the vertical side wall of a fixing frame so that the heat sink can be disassembled, and a mounting groove is provided on the side wall of the fixing frame, a filter plate is slidably connected inside the mounting groove, and the filter plate is located between an inverter body and the heat sink inside the fixing frame, so that dust can be blocked by the filter plate to avoid dust accumulation inside the heat sink, thereby affecting the heat dissipation effect of the heat sink on the internal inverter elements, and at the same time, a filter box is arranged above the horizontal surface of the fixing frame, a filter screen is arranged inside the filter box, and a fan is arranged on the surface of the shell, air is pumped into the shell through the fan, and the heat inside the shell is removed by fans passing through both sides of the shell, so as to increase the air circulation inside the shell and ensure the service life of the inverter.

Description

A heat dissipation structure of industrial frequency inverter

Technical Field

The utility model relates to the technical field of power frequency inverters, in particular to a heat dissipation structure of a power frequency inverter.

Background Art

The industrial frequency inverter is a DC/AC converter designed using high-frequency pulse width modulation technology and microcomputer control technology to convert the DC power of the battery pack into an AC power supply with stable output voltage and frequency.

However, most of the inverter cooling devices on the market currently use fans installed on the heat sink to increase the heat dissipation effect of the inverter and extend the service life of the inverter. However, the fan installed on the heat sink will be used for a long time to remove the heat generated by the internal components of the inverter when they are working. Long-term use will cause dust to accumulate inside the heat sink and dust to accumulate on the surface of the heat dissipation window at the end of the heat sink. The dust accumulation will affect the heat dissipation of the heat sink to the internal components of the inverter. The inverter is used in a high temperature state for a long time, thereby reducing the service life of the inverter.

Utility Model Content

The purpose of the utility model is to provide a heat dissipation structure for an industrial frequency inverter, wherein a mounting bracket is provided below the inner side wall of a fixing bracket, and a detachable filter plate is provided between an inverter body and a heat sink mounted on the surface of the mounting bracket for filtering, and a fan on the side wall of the outer shell is used to dissipate heat from the inverter inside the outer shell, so that dust can be accumulated due to long-term use of the fan, and the heat sink and the filter plate can be removed for cleaning or replacement, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A heat dissipation structure of an industrial frequency inverter comprises a shell, an air inlet device, a filter device and a heat dissipation device, wherein the air inlet device, the filter device and the heat dissipation device are all fixedly mounted on the shell, a mounting bracket is mounted on the inner bottom surface of the shell, the mounting bracket is L-shaped, a slide groove is provided below the upper vertical side wall of the mounting bracket, the top surface of the slide groove above the side wall of the mounting bracket is semicircular, the inner wall of the slide groove is slidably connected to the side wall of the heat sink, a spring plunger is mounted above the side wall of the heat sink slidably connected to the slide groove, a through hole with the same diameter as the spring plunger is provided on the top surface of the slide groove above the mounting bracket, and the spring plunger is clamped with the inner wall of the through hole.

Preferably, the transverse surface and vertical side walls of the fixing frame are provided with a plurality of heat dissipation holes, the transverse top surface of the fixing frame is fixedly mounted to the filter device, and the vertical side walls of the fixing frame are slidably connected to the side walls of the heat sink.

Preferably, a mounting groove is provided on the surface of the fixing frame, the inner wall of the mounting groove is slidably connected to the side wall of the filter plate, and the filter plate is located between the inverter body and the heat sink.

Preferably, both ends below the side walls inside the fixing frame are fixedly mounted to the side walls of the mounting frame, the bottom surface of the mounting frame contacts the bottom surface inside the shell, and a plurality of groups of positioning pins are installed on the surface of the mounting frame to facilitate the installation of the inverter body.

Preferably, the filtering device comprises a filter box, the bottom surface of the filter box is fixedly mounted to the surface of the fixing frame, a double-layer filter screen for filtering external air is installed inside the filter box, and the top surface of the filter box is fixedly mounted to the top surface inside the shell.

Preferably, an air inlet slot is provided on the surface of the shell, the filter box is located on the inner top surface of the shell and directly below the air inlet slot, and an air inlet device is provided on the surface of the shell outside the air inlet slot.

Preferably, the air inlet device comprises a fan, the fan is fixedly mounted on the surface of the outer shell, an air outlet pipe of the fan passes through the surface of a cover and is fixedly mounted on the cover, and the cover is fixedly mounted on the surface of the outer shell and is located outside the air inlet slot.

Preferably, two groups of circular holes are formed on both side outer walls of the shell, and fans are installed on the side walls of the shell outside the circular holes.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model is provided with a spring plunger connected with a through hole on the vertical side wall of the fixing frame so that the heat sink can be disassembled, and a mounting groove is provided on the side wall of the fixing frame, a filter plate is slidably connected inside the mounting groove, and the filter plate is located between the inverter body and the heat sink inside the fixing frame, so that dust can be blocked by the filter plate to prevent dust from accumulating inside the heat sink, thereby affecting the heat dissipation effect of the heat sink on the internal inverter components;

At the same time, a filter box is arranged above the horizontal surface of the fixing frame, a filter net is arranged inside the filter box, and a fan is arranged on the surface of the outer shell. Air is pumped into the inner shell by the fan, and the heat inside the outer shell is removed by fans passing through both sides of the outer shell to increase the air circulation inside the outer shell and ensure the service life of the inverter.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic diagram of the internal structure of the housing of the utility model;

Figure 3 is a schematic diagram of the overall split structure of the utility model;

Figure 4 is a schematic diagram of the internal structure of the filter box of the utility model;

FIG5 is a schematic diagram of the structure of the filter plate of the utility model.

In the figure: 1. outer shell; 2. round hole; 3. fan; 4. air inlet slot; 5. cover; 6. fan; 7. mounting bracket; 8. fixing bracket; 9. heat dissipation hole; 10. slide slot; 11. through hole; 12. heat sink; 13. spring plunger; 14. filter plate; 15. mounting slot; 16. filter box; 17. filter screen; 18. positioning pin.

DETAILED DESCRIPTION

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

Please refer to Figures 1 to 5. The utility model provides a technical solution:

A heat dissipation structure of a power frequency inverter comprises a shell 1, an air inlet device, a filter device and a heat dissipation device, wherein the air inlet device, the filter device and the heat dissipation device are all fixedly mounted on the shell 1, a fixing frame 8 is mounted on the inner bottom surface of the shell 1, the fixing frame 8 is L-shaped, a slide groove 10 is provided below the upper vertical side wall of the fixing frame 8, the top surface of the slide groove 10 above the side wall of the fixing frame 8 is semicircular, the inner wall of the slide groove 10 is slidably connected to the side wall of the heat sink 12, a spring plunger 13 is mounted above the side wall of the heat sink 12 slidably connected to the slide groove 10, a through hole 11 with the same diameter as the spring plunger 13 is provided on the top surface of the slide groove 10 above the fixing frame 8, and the spring plunger 13 is clamped with the inner wall of the through hole 11.

A plurality of heat dissipation holes 9 are provided on the transverse surface and the vertical side wall of the fixing frame 8. The transverse top surface of the fixing frame 8 is fixedly installed with the filtering device, and the vertical side wall of the fixing frame 8 is slidingly connected with the side wall of the heat sink 12. By providing a plurality of heat dissipation holes 9 on the surface of the fixing frame 8, the heat generated by the inverter body inside the fixing frame 8 during operation can be dissipated through the heat dissipation holes 9, and the air inlet device above can be conveniently used to infuse the outside air into the inside of the housing 1, thereby increasing the air circulation inside the housing 1.

A mounting groove 15 is provided on the surface of the fixing frame 8, and the inner wall of the mounting groove 15 is slidably connected to the side wall of the filter plate 14, and the filter plate 14 is located between the inverter body and the heat sink 12. By providing a sea creature on the surface of the fixing frame 8, the inner wall of the mounting groove 15 is slidably connected to the side wall of the filter plate 14, so that the operator can easily remove and replace the filter plate 14. At the same time, the filter plate 14 is located between the inverter body and the heat sink 12, so that the filter plate 14 can isolate the dust passing through the heat sink 12, thereby increasing the service life of the heat sink 12.

Both ends below the side walls inside the fixing frame 8 are fixedly mounted to the side walls of the mounting frame 7, the bottom surface of the mounting frame 7 is in contact with the bottom surface inside the outer shell 1, and a plurality of groups of positioning pins 18 are installed on the surface of the mounting frame 7 for facilitating the installation of the inverter body. By installing the mounting frame 7 below the inner side walls of the fixing frame 8, and the bottom surface of the mounting frame 7 is placed on the bottom surface inside the outer shell 1, and a plurality of groups of positioning pins 18 are arranged on the surface of the mounting frame 7, the inverter body can be installed through the positioning pins 18, so that the operator can save time and effort to install the inverter body.

The filtering device includes a filter box 16, the bottom surface of the filter box 16 is fixedly installed on the surface of the fixing frame 8, a filter screen 17 for filtering external air is installed inside the filter box 16, and the top surface of the filter box 16 is fixedly installed on the top surface inside the shell 1. By arranging the filter box 16 on the surface of the fixing frame 8, and the top surface of the filter box 16 is fixedly installed on the internal top surface of the shell 1, and the filter screen 17 is arranged inside the filter box 16, the air injected into the shell 1 by the upper air inlet device can be filtered to prevent external dust from damaging the inverter components.

An air inlet slot 4 is provided on the surface of the shell 1, and the filter box 16 is located on the inner top surface of the shell 1 and directly below the air inlet slot 4. An air inlet device is provided on the surface of the shell 1 outside the air inlet slot 4. By providing the air inlet slot 4 on the surface of the shell 1, and the filter box 16 is located inside the shell 1 and directly below the air inlet slot 4, and at the same time, an air inlet device is provided outside the air inlet slot 4, the air inlet device can infuse air into the shell 1, thereby increasing the air circulation inside the shell 1.

The air intake device includes a fan 6, which is fixedly installed on the surface of the shell 1, and an air outlet pipe of the fan 6 passes through the surface of the cover 5 and is fixedly installed on the cover 5. The cover 5 is fixedly installed on the surface of the shell 1 and is located outside the air inlet slot 4. Two sets of circular holes 2 are opened on the outer walls of both sides of the shell 1, and fans 3 are installed on the side walls of the shell 1 outside the circular holes 2. The fan 6 is arranged above the shell 1, and the air outlet pipe of the fan 6 passes through the cover 5 and is fixedly installed on the side walls of the cover 5, and the fan 6 is located outside the air inlet slot 4, so that the fan 6 can transport the outside air to the inside of the shell 1 through the air inlet slot 4, and then the heat inside the shell 1 is removed through the fan 3, thereby increasing the air flow inside the shell 1 and ensuring the service life of the inverter body.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims (8)

1. The utility model provides a power frequency dc-to-ac converter heat radiation structure, includes shell (1), hot blast blowpipe apparatus, filter equipment and heat abstractor, its characterized in that: the utility model discloses a heat dissipation device, including casing (1), air inlet unit, filter equipment and heat abstractor all with casing (1) fixed mounting, install mount (8) in the inside bottom surface of casing (1), mount (8) are the L type, spout (10) have all been seted up to the below of the vertical lateral wall top of mount (8), the top surface of spout (10) of mount (8) lateral wall top is the semicircle type, the inner wall of spout (10) all with fin (12) lateral wall sliding connection, spring plunger (13) are installed with spout (10) sliding connection's lateral wall top to fin (12) lateral wall, through-hole (11) with spring plunger (13) same diameter size are seted up to the top surface of spout (10) of mount (8), spring plunger (13) and the inner wall joint of through-hole (11).

2. The power frequency inverter heat dissipation structure as defined in claim 1, wherein: the heat radiation device is characterized in that a plurality of groups of heat radiation holes (9) are formed in the transverse surface and the vertical side wall of the fixing frame (8), the transverse top surface of the fixing frame (8) is fixedly arranged with the filtering device, and the vertical side wall of the fixing frame (8) is in sliding connection with the side wall of the heat radiation fin (12).

3. The power frequency inverter heat dissipation structure as defined in claim 2, wherein: the surface of mount (8) has seted up mounting groove (15), the inner wall of mounting groove (15) and the lateral wall sliding connection of filter (14), and filter (14) are located between dc-to-ac converter body and fin (12).

4. A power frequency inverter heat dissipation structure as defined in claim 3, wherein: both ends of the inside lateral wall below of mount (8) all with the lateral wall fixed mounting of mounting bracket (7), the bottom surface of mounting bracket (7) and the inside bottom surface of shell (1) contact each other, the surface mounting of mounting bracket (7) has multiunit locating pin (18) that are convenient for dc-to-ac converter main part installation.

5. The power frequency inverter heat dissipation structure as defined in claim 1, wherein: the filtering device comprises a filtering box (16), wherein the bottom surface of the filtering box (16) is fixedly arranged on the surface of the fixing frame (8), a double-layer filter screen (17) used for filtering outside air is arranged in the filtering box (16), and the top surface of the filtering box (16) is fixedly arranged on the top surface of the inside of the shell (1).

6. The power frequency inverter heat dissipation structure as defined in claim 5, wherein: the surface of shell (1) has seted up air inlet groove (4), rose box (16) are located the inside top surface of shell (1) and are located air inlet groove (4) under, the surface of shell (1) is provided with the hot blast blowpipe apparatus in the outside of air inlet groove (4).

7. The power frequency inverter heat dissipation structure as defined in claim 6, wherein: the air inlet device comprises a fan (6), the fan (6) is fixedly arranged on the surface of the shell (1), an air outlet pipe of the fan (6) penetrates through the surface of the sealing cover (5) and is fixedly arranged with the sealing cover (5), and the sealing cover (5) is fixedly arranged on the surface of the shell (1) and is positioned outside the air inlet groove (4).

8. The power frequency inverter heat dissipation structure as defined in claim 7, wherein: two groups of round holes (2) are formed in the outer walls of two sides of the shell (1), and fans (3) are mounted on the outer sides of the round holes (2) on the side walls of the shell (1).