CN218570102U - Three-phase inverter - Google Patents

Abstract

The utility model belongs to the technical field of electric power, in particular to a three-phase inverter. The three-phase inverter includes a casing, the top and bottom of the casing are respectively provided with a top sealing plate and a bottom sealing plate, and one side of the casing is A side sealing plate is provided, a mounting plate is provided on the inside of the top of the housing, a number of cooling fans are vertically provided on one side of the top of the mounting plate, and a temperature sensor is fixedly installed in the middle of the top of the mounting plate; the front top of the housing is inlaid with a sealing As for the gasket, the inner wall of the casing is fixed with an iron core coaxial with the sealing gasket, the outer side of the iron core is wound with a coil, and the top of the back of the casing is inlaid with a filter plate. The utility model uses a temperature sensor to monitor the internal temperature of the shell, and starts the cooling fan according to the need, thereby realizing energy saving. In addition, the sealing gasket in the utility model is opened synchronously when the cooling fan is started, thereby facilitating heat dissipation and ensuring Dust cannot enter the housing when the cooling fan is turned off.

Description

A three-phase inverter

technical field

The utility model belongs to the technical field of electric power, in particular to a three-phase inverter.

Background technique

The three-phase inverter is a high-power inverter power supply for electric power, mainly used in the military; communications; factory and enterprise uninterruptible power supply systems. In order to improve its heat dissipation capacity, the existing three-phase inverters often use fans for forced heat dissipation. If the temperature is low and there is no need to dissipate heat, the fan is always turned on, resulting in a waste of energy.

After investigation, the public (announcement) number: CN213094750U discloses a three-phase power inverter. In this technology, it is disclosed that "comprising a cabinet, a control platform is fixedly installed on the inside of the cabinet, and a control platform is fixedly installed on the control platform." A heat dissipation switch, a first cabinet door is movably installed on the right end of the cabinet, a glass window is fixedly installed near the top of the first cabinet door, a lock handle is movably installed on the lower right side of the glass window, and the first cabinet door The heat dissipation grill is fixedly installed near the bottom of the door, and technical solutions such as heat exhaust fans are installed on the side of the cabinet, which have the technical effects of reducing the internal temperature of the cabinet and making it convenient for users to clean the inside of the inverter. ";

However, when the device is in use, the exhaust heat fan is always activated, thereby causing a waste of energy. In addition, dust can still enter the inside of the cabinet through the heat dissipation grill, and frequent dust removal will increase the workload of the staff.

In order to solve the above problems, this application proposes a three-phase inverter.

Utility model content

In order to solve the problems raised in the above-mentioned background technology. The utility model provides a three-phase inverter, which has the characteristics of monitoring the internal temperature of a shell and energy saving and dustproof.

In order to achieve the above purpose, the utility model provides the following technical solutions: a three-phase inverter, including a housing, the top and bottom of the housing are respectively provided with a top sealing plate and a bottom sealing plate, one of the housing A side sealing plate is provided on the side, a mounting plate is provided on the inside of the top of the housing, a number of cooling fans are vertically provided on the top side of the mounting plate, and a temperature sensor is fixedly installed in the middle of the top of the mounting plate; The front top of the casing is inlaid with a sealing gasket, and the inner wall of the casing is fixed with an iron core coaxial with the sealing gasket, and a coil is wound around the outer side of the iron core, and the temperature sensors are respectively It is electrically connected with the cooling fan and the coil, and a filter plate is inlaid on the top of the back of the housing.

As a preferred three-phase inverter of the present invention, the casing, the top sealing plate, the bottom sealing plate and the side sealing plates are all sealed and fixed to each other.

Preferably, as a three-phase inverter of the present invention, the sealing gasket is made of magnetic material, and the iron core is magnetically charged after the coil is energized and is separated from the sealing gasket.

As a preferred three-phase inverter of the present utility model, a telescopic rod is fixed horizontally in the middle of the sealing gasket, and one end of the telescopic rod penetrates the front of the housing and is provided with a limit block. A first compression spring is sheathed on the outer side of the rod and between the inner wall of the casing and the limiting block.

As a preferred three-phase inverter of the present invention, the top of the housing is provided with a plurality of cooling holes, one side of the cooling hole is inlaid with the sealing gasket, and the middle part of the cooling hole is horizontally A limiting sleeve is provided, and the limiting sleeve is fixedly connected with the inner wall of the heat dissipation hole through a plurality of supporting ribs, and the middle part of the limiting sleeve is provided with the telescopic rod.

As a preferred three-phase inverter of the present invention, a rectangular hole is provided on the top of the back of the housing, the inside of the rectangular hole is provided with the filter plate, and the rectangular hole is close to the inside of the housing. A limit frame is fixedly arranged on one side, and several rotating plates are arranged on the top of the back of the housing.

As a preferred three-phase inverter of the present invention, a plurality of second compression springs are fixedly arranged on the side of the limit frame close to the filter plate, and one end of the second compression spring is against the filter plate. catch.

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

1. The utility model uses a temperature sensor to monitor the internal temperature of the shell, and starts the cooling fan as needed, thereby realizing energy saving. In addition, the sealing gasket in the utility model is opened synchronously when the cooling fan is started, thereby facilitating heat dissipation. And ensure that dust cannot enter the inside of the casing when the cooling fan is turned off.

2. By installing a filter plate on the back of the housing, it can not only ensure that the air inside the housing is in a state of circulation when the cooling fan is started, but also effectively filter the dust in the air, thereby ensuring the service life of the electronic components inside the housing .

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is one of structural representation of the utility model;

Fig. 2 is the second structural representation of the utility model;

Fig. 3 is the top sectional view of the utility model;

Fig. 4 is a partial enlarged view of place A in Fig. 3;

Fig. 5 is the structural representation of housing in the utility model;

FIG. 6 is a partially enlarged view of the location B in FIG. 3 .

In the figure: 1. Shell; 2. Top sealing plate; 3. Bottom sealing plate; 4. Side sealing plate; 5. Mounting plate; 6. Cooling fan; 7. Temperature sensor; 8. Sealing gasket; 9. Iron Core; 10, coil; 11, filter plate; 12, telescopic rod; 13, limit block; 14, first compression spring; 15, cooling hole; 16, limit sleeve; 17, support rib; 18, rectangular hole; 19, limit frame; 20, rotating plate; 21, second compression spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in Figure 1 and Figure 2;

Fig. 1 is one of structural representation of the utility model;

Fig. 2 is the second structural diagram of the utility model.

A three-phase inverter, comprising a housing 1, the top and bottom of the housing 1 are respectively provided with a top sealing plate 2 and a bottom sealing plate 3, one side of the housing 1 is provided with a side sealing plate 4, the housing 1 A mounting plate 5 is arranged on the inner side of the top, and a number of heat dissipation fans 6 are vertically arranged on the top side of the mounting plate 5, and a temperature sensor 7 is fixedly installed in the middle of the top of the mounting plate 5; The inner wall of the housing 1 is fixedly provided with an iron core 9 coaxial with the sealing gasket 8, and a coil 10 is wound around the outer side of the iron core 9, and the temperature sensor 7 is electrically connected with the cooling fan 6 and the coil 10 respectively. The housing 1 The top of the back side is inlaid with a filter plate 11.

It should be noted that in this embodiment, sealing rings are provided on the parts where the shell 1 , the top sealing plate 2 , the bottom sealing plate 3 and the side sealing plates 4 are attached to each other, and the airflow direction generated by the cooling fan 6 is directed toward the sealing gasket 8 .

It should be noted that in this embodiment, the model of the temperature sensor 7 is WR-200.

In this embodiment: the temperature sensor 7 monitors the internal temperature of the housing 1, and starts the cooling fan 6 as needed, thereby realizing energy saving. In addition, the sealing gasket 8 in the utility model is opened synchronously when the cooling fan 6 is started. This facilitates heat dissipation and ensures that dust cannot enter the interior of the housing 1 when the cooling fan 6 is turned off.

In an optional embodiment, the casing 1 , the top sealing plate 2 , the bottom sealing plate 3 and the side sealing plates 4 are sealed and fixed to each other.

In this embodiment: this can effectively prevent dust from entering the casing 1 and facilitate the opening of the side sealing plate 4 .

In an optional embodiment, the sealing gasket 8 is made of magnetic material, and the coil 10 makes the iron core 9 magnetic and away from the sealing gasket 8 after being energized.

In this embodiment: this can ensure that the sealing gasket 8 is opened synchronously when the cooling fan 6 is started, so as to realize the circulation of the air inside the casing 1 .

As shown in Figure 3 and Figure 4;

Fig. 3 is the top sectional view of the utility model;

FIG. 4 is a partial enlarged view of A in FIG. 3 .

In an optional embodiment, a telescopic rod 12 is fixed horizontally in the middle of the sealing gasket 8, and one end of the telescopic rod 12 runs through the front of the housing 1 and is provided with a limit block 13. The outer side of the telescopic rod 12 is located on the housing A first compression spring 14 is sleeved between the inner wall of 1 and the limiting block 13 .

In this embodiment: the coil 10 is energized to make the iron core 9 magnetic and repel the sealing gasket 8, the telescopic rod 12 moves in the limit sleeve 16 and drives the sealing gasket 8 to extend out of the cooling hole 15, at this time the cooling fan 6 The hot air inside the casing 1 is discharged.

As shown in Figure 5;

Fig. 5 is a structural schematic diagram of the housing in the present invention.

In an optional embodiment, the top of the housing 1 is provided with a plurality of heat dissipation holes 15, one side of the heat dissipation holes 15 is inlaid with a sealing gasket 8, and the middle part of the heat dissipation holes 15 is provided with a limiting sleeve 16 transversely. The sleeve 16 is fixedly connected to the inner wall of the cooling hole 15 through several supporting ribs 17 , and the middle part of the limiting sleeve 16 is provided with a telescopic rod 12 .

In this embodiment: through the cooperation of the sealing gasket 8 and the heat dissipation hole 15, the heat dissipation hole 15 can be opened and closed as required, thereby preventing the entry of dust.

As shown in Figure 6;

FIG. 6 is a partially enlarged view of the location B in FIG. 3 .

In an optional embodiment, a rectangular hole 18 is opened on the top of the back of the housing 1, and a filter plate 11 is arranged inside the rectangular hole 18, and a limit frame 19 is fixedly provided on the side of the rectangular hole 18 close to the inside of the housing 1, A number of rotating plates 20 are rotatably arranged on the back top of the casing 1 .

In this embodiment: in this way, the position of the filter plate 11 can be limited, and the disassembly and installation of the filter plate 11 can be facilitated.

In an optional embodiment, a plurality of second compression springs 21 are fixedly arranged on a side of the limit frame 19 close to the filter plate 11 , and one end of the second compression springs 21 abuts against the filter plate 11 .

In this embodiment: when the filter plate 11 is disassembled, the filter plate 11 can be actively ejected through the second compression spring 21 , thereby facilitating the disassembly of the filter plate 11 .

The working principle and application process of the utility model: the housing 1, the top sealing plate 2, the bottom sealing plate 3 and the side sealing plate 4 are fixed with bolts, the inside of the housing 1 is provided with a PLC control chip, and the temperature sensor 7 and The PLC control chip is electrically connected. When the inside of the housing 1 exceeds the set value, the temperature sensor 7 energizes the cooling fan 6 and the coil 10. The coil 10 is energized to make the iron core 9 magnetic and repel the sealing gasket 8. The telescopic rod 12 moves in the limit sleeve 16 and drives the sealing gasket 8 to extend out of the cooling hole 15. At this time, the cooling fan 6 discharges the hot air inside the housing 1 and introduces cold air through the rectangular hole 18. When the inside of the housing 1 is lower than the set When the value is fixed, the temperature sensor 7 is powered off, and the sealing gasket 8 resets under the action of the first compression spring 14 and seals the cooling hole 15; At this time, the filter plate 11 can be ejected under the action of the second compression spring 21 .

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. a three-phase inverter, comprising a housing (1), the top and the bottom of the housing (1) are respectively provided with a top sealing plate (2) and a bottom sealing plate (3), the housing ( One side of 1) is provided with side sealing plate (4), is characterized in that: The top inside of the housing (1) is provided with a mounting plate (5), the top side of the mounting plate (5) is vertically provided with several cooling fans (6), and the top middle of the mounting plate (5) A temperature sensor (7) is fixedly arranged; The front top of the housing (1) is inlaid with a sealing gasket (8), and the inner wall of the housing (1) is fixed with an iron core (9) coaxial with the sealing gasket (8). , the outer side of the iron core (9) is wound with a coil (10), the temperature sensor (7) is electrically connected with the cooling fan (6) and the coil (10) respectively, and the casing (1 ) is inlaid with a filter plate (11) at the top of the back side. 2. The three-phase inverter according to claim 1, characterized in that: the housing (1), the top sealing plate (2), the bottom sealing plate (3) and the side sealing plates (4) They are sealed and fixed to each other. 3. The three-phase inverter according to claim 2, characterized in that: the sealing gasket (8) is made of magnetic material, and after the coil (10) is energized, the iron core (9) has Magnetic and away from the sealing gasket (8). 4. The three-phase inverter according to claim 3, characterized in that: a telescopic rod (12) is fixed horizontally in the middle of the sealing gasket (8), and one end of the telescopic rod (12) runs through the The front of the housing (1) is provided with a limit block (13), and the outer side of the telescopic rod (12) is sleeved between the inner wall of the housing (1) and the limit block (13). There is a first compression spring (14). 5. The three-phase inverter according to claim 4, characterized in that: the top of the casing (1) is provided with a number of heat dissipation holes (15), and one side of the heat dissipation holes (15) is inlaid There is the sealing gasket (8), and a limit sleeve (16) is arranged laterally in the middle of the heat dissipation hole (15), and the limit sleeve (16) connects with the heat dissipation hole (15) through several support ribs (17). ) is fixedly connected to the inner wall, and the middle part of the limit sleeve (16) is provided with the telescopic rod (12). 6. The three-phase inverter according to claim 5, characterized in that: a rectangular hole (18) is opened on the back top of the housing (1), and the inside of the rectangular hole (18) is provided with the A filter plate (11), the side of the rectangular hole (18) close to the inside of the housing (1) is fixed with a limit frame (19), and the top of the back of the housing (1) is rotatably provided with several rotating plates (20). 7. The three-phase inverter according to claim 6, characterized in that: the limiting frame (19) is fixedly provided with several second compression springs (21) on a side close to the filter plate (11), One end of the second compression spring (21) abuts against the filter plate (11).

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