Inverter with cooling fan device capable of being pulled out and replaced

Abstract

The utility model relates to an inverter with a cooling fan device capable of being pulled out for replacement, and aims to solve the technical problem that an internal cooling fan can be maintained or replaced only by dismounting a case cover plate and an upper-layer component circuit board when the cooling fan is maintained or replaced at present, which is not beneficial to rapid maintenance and replacement of the cooling fan. Comprising an inverter box body, a box body internal structure is installed in the inverter box body, the box body internal structure comprises an aluminum radiator and a fan extraction limiting guide rail groove, and the aluminum radiator is fixedly connected to the bottom of the inverter box body. According to the utility model, the fan power line is directly inserted into the inverter box body from the outer side of the case, and the fan power line is quickly connected to the control circuit power supply in the case through the connector, so that the fan can be quickly mounted, maintained and replaced in a narrow space under the condition that surrounding components are not dismounted, and the maintenance time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to inverter field, concretely is a kind of inverter of drawing out and replacing heat dissipation fan device. BACKGROUND

[0002] The main heat source inside the high-frequency inverter cabinet comes from the switching loss and conduction loss of IGBT, which will be converted into heat. When the heat generated by the loss reaches the threshold of IGBT, it is easy to cause damage to IGBT. In order to ensure the stable operation of IGBT, the heat generated by the loss of IGBT must be quickly conducted out. The usual way is to paste the substrate of IGBT on the radiator. Since the rack-type high-frequency inverter cabinet adopts U-box design, it is convenient to install, but at the same time it brings limitations to the inverter cabinet space. The size of the radiator is limited. The small radiator must adopt forced air cooling measures to conduct the large heat. Therefore, the selection and maintenance method of the fan are particularly important. Therefore, a new technical solution is needed to solve the problem. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, adapting to the actual need, provide a kind of inverter of drawing out and replacing heat dissipation fan device to solve the technical problem that current maintenance or replacement of heat dissipation fan needs to remove cabinet cover plate, remove upper layer component circuit board, can only maintain or replace internal heat dissipation fan, is not conducive to the quick maintenance and replacement of heat dissipation fan.

[0004] In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: a kind of inverter of drawing out and replacing heat dissipation fan device is designed, including inverter cabinet, the inside of the inverter cabinet is installed with cabinet internal structure, the cabinet internal structure includes aluminum radiator and fan extraction limiting guide rail slot, the aluminum radiator is fixedly connected at the bottom of the inverter cabinet, and is located at the side of the extractable fan component, the fan extraction limiting guide rail slot is opened at the both sides of the bottom of the extractable fan component, the fan extraction limiting guide rail slot is slidably connected with fan extractable mounting plate inside, a plurality of heat dissipation fans are provided on the fan extractable mounting plate, a plurality of heat dissipation fans are connected with terminal plug through fan power cord, the corresponding end of the terminal plug is provided with terminal socket, the both ends of the terminal socket are fixedly provided with positioning guide nail, the corresponding end of the positioning guide nail is provided with mounting positioning hole, the outside of the positioning guide nail is provided with spring, the other end of the terminal socket is connected with socket leading wire.

[0005] Preferably, a cabinet rear air outlet is installed on one side of the inverter cabinet, and a cabinet front air inlet is installed on the other side of the inverter cabinet.

[0006] Preferably, the box internal structure further comprises an internal component circuit board and a middle layer partition plate of the case, the internal component circuit board is fixedly connected to the upper surface of the middle layer partition plate of the case, and the middle layer partition plate is fixedly connected to the inner wall at the middle of the inverter box.

[0007] Preferably, the upper surface of the aluminum heat sink is uniformly distributed with three IGBT power modules, the IGBT power modules are attached to the upper surface of the aluminum heat sink and are fixedly connected to the upper surface.

[0008] Preferably, a plurality of the cooling fans are uniformly distributed on the fan extractable mounting plate and are fixedly connected to the surface of the fan extractable mounting plate, and one end of the wiring terminal plug is fixedly connected to one end of the fan extractable mounting plate.

[0009] Preferably, the mounting positioning holes are arranged on both sides of one end of the fan extractable mounting plate.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The utility model discloses a plurality of cooling fans are installed into the assembly side by side, are directly inserted into the inverter box from the case outside, and are connected to the power supply of the internal control circuit of the case through the connector and quickly, reach in the narrow space, do not remove the surrounding component under the condition, can realize the quick installation, maintenance, replacement of the fan, shorten the maintenance time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the schematic diagram of the inverter case of the utility model;

[0013] Figure 2 It is the schematic diagram of the internal component of the inverter case of the utility model;

[0014] Figure 3 It is the front surface schematic diagram of the extractable fan structure of the case of the utility model;

[0015] Figure 4 It is the back surface schematic diagram of the extractable fan structure of the case of the utility model;

[0016] In the figure: 1, inverter box; 2, box internal structure; 3, extractable fan component; 201, internal component circuit board; 202, aluminum radiator; 203, fan extraction limiting guide rail groove; 204, middle layer partition plate of the case; 205, front air inlet of the case; 206, rear air outlet of the case; 207, IGBT power module; 301, fan extractable mounting plate; 302, cooling fan; 303, fan power cord; 304, wiring terminal plug; 305, wiring terminal socket; 306, mounting positioning hole; 307, positioning guide peg; 308, spring; 309, socket lead-out flat cable. DETAILED DESCRIPTION

[0017] The utility model is further illustrated below in combination with the drawings and examples:

[0018] Example 1: an inverter with extractable and replaceable cooling fan device, referring to Figures 1 to 4 An inverter with extractable fan mounting assembly includes an inverter box 1, the box internal structure 2 is installed in the inverter box 1, the box internal structure 2 includes an aluminum radiator 202 and a fan extraction limiting guide rail groove 203, the aluminum radiator 202 is fixedly connected to the bottom of the inverter box 1 and located on one side of the extractable fan component 3, the fan extraction limiting guide rail groove 203 is opened on both sides of the bottom of the extractable fan component 3, the fan extraction limiting guide rail groove 203 is slidably connected with the fan extractable mounting plate 301, a plurality of cooling fans 302 are arranged on the fan extractable mounting plate 301, the plurality of cooling fans 302 are evenly distributed on the fan extractable mounting plate 301 and fixedly connected with the surface thereof, one end of the wiring terminal plug 304 is fixedly connected to one end of the fan extractable mounting plate 301, the plurality of cooling fans 302 are connected with the wiring terminal plug 304 through the fan power cord 303, the corresponding end of the wiring terminal plug 304 is provided with the wiring terminal socket 305, the both ends of the wiring terminal socket 305 are fixedly provided with the positioning guide peg 307, the corresponding end of the positioning guide peg 307 is provided with the mounting positioning hole 306, the mounting positioning hole 306 is opened on both sides of one end of the fan extractable mounting plate 301, the spring 308 is sleeved outside the positioning guide peg 307, the other end of the wiring terminal socket 305 is connected with the socket lead-out flat cable 309, the plurality of cooling fans 302 are installed side by side into an assembly, the inverter box 1 is directly inserted from the outside of the case, and the fan power cord 303 is quickly connected to the internal control circuit power supply of the case through the connector, so that the cooling fan can be quickly installed, maintained and replaced without removing the surrounding components in a small space, and the maintenance time is shortened.

[0019] Specifically, referring to Figure 2The one side of the inside of the inverter box 1 is provided with a rear air outlet 206 of the machine box, and the other side of the inside of the inverter box 1 is provided with a front air inlet 205 of the machine box, so that the inverter box 1 is conveniently cooled.

[0020] Further, referring to Figure 2 The inside structure 2 of the box further comprises an internal component circuit board 201 and a middle layer partition plate 204 of the machine box, the internal component circuit board 201 is fixedly connected to the upper surface of the middle layer partition plate 204, the middle layer partition plate 204 is fixedly connected to the inner wall of the middle of the inverter box 1, the middle layer partition plate and the bottom plate of the machine box form a cooling air duct, the fan is located in the middle of the air duct, cold air is sucked from the front air inlet 205 of the machine box, blown to the fins of the radiator, and the radiator is cooled, and hot air is discharged through the rear air outlet, so that the internal IGBT power device is cooled.

[0021] It is worth mentioning that, referring to Figure 2 The upper surface of the aluminum radiator 202 is uniformly provided with three IGBT power modules 207, the IGBT power modules 207 are attached to the upper surface of the aluminum radiator 202 and are fixedly connected to the upper surface.

[0022] It is worth mentioning that, the cooling fan 302 is fixed to the fan extractable mounting plate 301, the fan power supply line 303 is sequentially connected to the terminal plug 304, one end of the socket lead-out cable 309 is connected to the terminal socket 305, and the other end of the socket lead-out cable 309 is sequentially connected to the internal power supply control board of the machine box. The extractable fan component 3 is inserted into the machine box along the fan extraction limiting guide rail groove 203, the terminal plug 304 and the terminal socket 305 are accurately connected under the action of the mounting positioning hole 306 and the positioning guide peg 307, the fan power supply control line is connected, meanwhile, the spring 308 on the positioning guide peg 307 is compressed, the four mounting fixed countersunk head screws outside the fan extractable mounting plate 301 are tightened, and the replacement is completed. When the cooling fan 302 is replaced, the four mounting fixed countersunk head screws outside the fan extractable mounting plate 301 are removed, the extractable fan component 3 is popped out under the action force of the spring 308, and the quick installation and replacement of the cooling fan are realized.

[0023] In addition, the components designed in the utility model are general standard components or components known by the person skilled in the art, the structure and principle of which can be known by the person skilled in the art through a technical manual or through a conventional experimental method, and the person skilled in the art can completely realize it without further description, and the content protected by the utility model does not involve the improvement of the inside structure of the box and the method.

[0024] The utility model discloses an embodiment discloses the better embodiment, but is not limited to this, and the ordinary skill of the art, the spirit of the utility model is appreciated to the above -mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are in the protection range of the utility model.

Claims

1. An inverter of a type in which a heat dissipation fan device can be extracted and replaced, comprising an inverter case (1), characterized in that, The interior of the inverter box (1) is internally mounted with a box interior structure (2), the box interior structure (2) comprises an aluminum radiator (202) and a fan extraction limiting guide rail groove (203), the aluminum radiator (202) is fixedly connected at the bottom of the inverter box (1) and located at one side of the extractable fan component (3), the fan extraction limiting guide rail groove (203) is opened at both sides of the bottom of the extractable fan component (3), the fan extraction limiting guide rail groove (203) is slidably connected with a fan extractable mounting plate (301), a plurality of heat dissipation fans (302) are arranged on the fan extractable mounting plate (301), a plurality of the heat dissipation fans (302) are connected with a terminal plug (304) through a fan power line (303), a terminal socket (305) is mounted at the corresponding end of the terminal plug (304), a positioning guide nail (307) is fixedly mounted at both ends of the terminal socket (305), an installation positioning hole (306) is opened at the corresponding end of the positioning guide nail (307), a spring (308) is sleeved outside the positioning guide nail (307), and the other end of the terminal socket (305) is connected with a socket leading wire (309).

2. An inverter having a heat dissipation fan device which can be extracted and replaced according to claim 1, characterized in that, One side of the interior of the inverter box (1) is mounted with a cabinet rear air outlet (206), and the other side of the interior of the inverter box (1) is mounted with a cabinet front air inlet (205).

3. An inverter having a heat dissipation fan device capable of being extracted and replaced according to claim 1, wherein The box interior structure (2) further comprises an internal component circuit board (201) and a cabinet middle layer partition plate (204), the internal component circuit board (201) is fixedly connected to the upper surface of the cabinet middle layer partition plate (204), and the cabinet middle layer partition plate (204) is fixedly connected to the inner wall of the middle of the inverter box (1).

4. An inverter having a heat dissipation fan device capable of being extracted and replaced according to claim 1, wherein The upper surface of the aluminum radiator (202) is uniformly provided with three IGBT power modules (207), the IGBT power modules (207) are attached to the upper surface of the aluminum radiator (202) and fixedly connected thereto.

5. An inverter having a heat dissipation fan device capable of being extracted and replaced according to claim 1, wherein A plurality of the heat dissipation fans (302) are uniformly distributed on the fan extractable mounting plate (301) and fixedly connected to the surface thereof, and one end of the terminal plug (304) is fixedly connected to one end of the fan extractable mounting plate (301).

6. An inverter having a heat dissipation fan unit which can be extracted and replaced, according to claim 1, wherein The installation positioning hole (306) is opened at both sides of one end of the fan extractable mounting plate (301). The upper surface of the aluminum radiator (202) is uniformly provided with three IGBT power modules (207), the IGBT power modules (207) are attached to the upper surface of the aluminum radiator (202) and fixedly connected thereto.

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