CN209823634U - Temperature-adjustable explosion-proof frequency converter - Google Patents

Abstract

The utility model discloses an explosion-proof type converter with adjustable temperature, including the shell body, the shell body is installed on equipment through the converter mounting panel, be provided with the air exit on its roof, the lower part of its left and right side board is provided with the air intake respectively, be provided with the control panel on the preceding curb plate of shell body, be provided with host system on the control panel, fan heat abstractor is installed to the air exit inboard, heat dissipation tube group is installed to the air inlet end to the inboard of fan heat abstractor, heat dissipation tube group is including the wind hole mounting panel that is provided with the wind hole and a plurality of circulating pipe that is provided with independent joint that horizontal arrangement installation is fixed on wind hole mounting panel, wind hole mounting panel is fixed in fan heat abstractor's air inlet side; the utility model discloses the design purpose of converter is firstly for the inside components and parts of protection converter, secondly for the temperature of control converter, prevents that the high temperature of converter from influencing the work efficiency of its components and parts, and three are energy-conserving.

Description

A temperature-adjustable explosion-proof frequency converter

technical field

The utility model relates to a frequency converter, in particular to a temperature-adjustable explosion-proof frequency converter.

Background technique

The frequency converter is a power control device that converts the power frequency power supply to another frequency by using the on-off function of power semiconductor devices.

With the continuous progress of the society, various science and technology are applied to the production field, and some electric equipment are widely used, but the power frequency used by different electric equipment is different according to its design and realization conditions, and the frequency converter is It is a device that can change the frequency of the power supply, and with the development of the inverter, it has also expanded the protection functions of overcurrent, overvoltage, overload, etc. The internal circuit structure of most inverters, due to the concentration of components and the action of current, the internal temperature continues to rise. High, in severe cases, it may even burn out some components and cause accidents.

In some factories, a large number of frequency converters are required to be used in production equipment, and once the frequency converter fails due to insufficient heat dissipation, it will have a great impact on production. Since the heat dissipation rate of liquid is much faster than that of air, liquid cooling radiators often have a good heat dissipation effect. Therefore, a frequency converter that can improve heat dissipation efficiency is needed to solve such problems. At the same time, a temperature sensor is installed on the frequency converter , so that the inverter can save energy.

Utility model content

Aiming at the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a temperature-adjustable explosion-proof frequency converter. The design purpose of the frequency converter is to protect the internal components of the frequency converter and to Control the temperature of the inverter to prevent the temperature of the inverter from being too high and affect the working efficiency of its components. The third is to control the fan speed on the premise of achieving the purpose of heat dissipation to achieve the purpose of energy saving.

In order to solve the above-mentioned technical problems, the utility model is realized by the following scheme: a temperature-adjustable explosion-proof frequency converter, including an outer shell, the outer shell is installed on the equipment through the frequency converter mounting plate, and the top plate is provided with a row An air outlet, the lower part of the left and right side panels is respectively provided with an air inlet, the front side panel of the outer casing is provided with a control panel, the control panel is provided with a main control module, and a fan cooling device is installed inside the air outlet, The inner side of the fan cooling device is installed with a heat dissipation pipe group toward the air inlet end, and the heat dissipation pipe group includes an air hole mounting plate provided with an air passage hole and several devices arranged horizontally and fixed on the air hole mounting plate. A circulation pipe with an independent joint, the air hole mounting plate is fixed on the air intake side of the fan cooling device and covers the fan cooling device;

The control board is provided with a cooling block, the outer end of the cooling block is provided with a circular groove, the upper side of the circular groove is provided with a pipe passing groove, and a coil pipe is arranged in the circular groove, and the two sides of the coil pipe The root canal body extends upward from the pipe groove and is connected to the circulation pipe through a connecting pipe, and a temperature sensor is arranged on the control board, and the temperature sensor senses the temperature on the cooling block;

The outer shell is provided with a mounting frame, the mounting frame is provided with multi-layer mounting boards, and each layer of mounting board is provided with a cooling block, and each cooling block is provided with an output parallel copper bar and a DC parallel copper bar. A horizontal jack is provided, which is open on the left side of the horizontal jack, and a through hole is provided on the right side of the jack. A liquid collecting pipe is inserted into the horizontal jack, and the liquid collecting pipe is fixed by screws. The side end is provided with a joint, the joint passes through the hole and is connected to an upward conveying pipeline through a connecting pipe, and the upper side of the upward conveying pipeline is bent to the left to be horizontal and connected to the circulation pipe through a connecting pipe;

The inverter mounting plate is provided with heat dissipation holes, and an aluminum radiator is installed on the heat dissipation holes. The outward surface of the aluminum radiator is provided with heat dissipation fins, and its inward surface is provided with a number of conveying pipeline embedding grooves. , the delivery pipeline is embedded in the delivery pipeline embedding groove;

Both the coil and the liquid collecting pipe are provided with a volatile heat-conducting medium;

After the heat transfer medium is volatilized by heat, the gaseous state it forms will enter the circulation pipe, and the circulation pipe is cooled by air to cool the gaseous heat transfer medium to form a liquid and return it to the coil or the liquid collection pipe.

Further, the circulation pipe includes a U-shaped pipe body connected to the cooling block through pipelines, and an annular pipe body connected to the liquid collection pipe through pipelines, and each liquid collection pipe is correspondingly connected to an annular pipe body through a separate pipeline. tube body.

Further, the overall shape of the coiled tube is circular, and a labyrinth is formed by continuous bending of a tube body in front and back to form a disc body.

Further, the outer casing is an explosion-proof casing, which adopts an aluminum alloy outer casing.

Further, the main control module is respectively connected to the temperature sensor and the fan cooling device through the circuit, and the temperature sensor sends a signal to the main control module by sensing the temperature on the cooling block, and the main control module controls the temperature according to the temperature. The fan speed of the fan cooling device.

Further, both the vertical plate and the horizontal plate of the installation frame are provided with air holes.

Further, the heat conducting medium is ethylene glycol or propylene glycol.

Further, the cooling block is a copper cooling block or an aluminum cooling block.

Further, the heat dissipation block is an aluminum heat dissipation block.

Compared with the prior art, the beneficial effect of the utility model is: the utility model forms a comprehensive heat dissipation system through the combination of various heat dissipation methods, and the cooling block is made of copper or aluminum, which has a good heat absorption effect, and it controls the The heat on the module is absorbed and dissipated into the air. The coil on it is also made of aluminum. The heat transfer medium in the coil volatilizes to form a gaseous state and is sent to the circulation pipe through the pipeline. The circulation pipe is cooled by the fan, and the heat transfer medium turns into a liquid state after cooling down. Return to the coil to achieve the purpose of rapid heat dissipation.

The temperature sensor senses the temperature of the cooling block. When the temperature of the cooling block is too high, it sends a signal to the main control module. Tolerable value), the main control module reduces the fan speed to achieve the purpose of energy saving.

The output parallel copper bars and DC parallel copper bars also emit heat when they are working. The liquid collector built in the cooling block absorbs the heat. The heat conduction medium is volatilized after being heated to form a gaseous state and sent to the circulation pipe through the pipeline. The circulation pipe is cooled by the fan and conducts heat. After the medium cools down, it forms a liquid and flows back into the liquid collection pipe to achieve the purpose of rapid heat dissipation.

There is also an aluminum radiator on the inverter mounting plate, and the aluminum radiator also has a heat dissipation effect. The gaseous heat transfer medium in the delivery pipeline will conduct part of the heat to the aluminum radiator, and then guide it to the outside air through the aluminum radiator. middle.

Description of drawings

Figure 1 is a schematic diagram of the external structure of the inverter of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the frequency converter of the present invention.

Fig. 3 is a schematic diagram of the connection structure between the coil pipe and the circulation pipe of the present invention.

Fig. 4 is a structural schematic diagram of the liquid collecting pipe of the present invention.

Fig. 5 is a structural schematic diagram of the heat dissipation tube group of the present invention.

Fig. 6 is a structural schematic diagram of the utility model aluminum radiator.

Detailed ways

The technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so as to understand the utility model The scope of the new type of protection is more clearly defined. Apparently, the described embodiments of the utility model are only some of the embodiments of the utility model, not all of them. 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.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, or it can be the internal communication of two components, it can be wireless connection, or it can be wired connection. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Embodiment 1, the concrete structure of the present utility model is as follows:

Please refer to the accompanying drawings 1-6, a temperature-adjustable explosion-proof frequency converter of the present invention includes an outer shell 1, the outer shell 1 is installed on the equipment through the frequency converter mounting plate 2, and the top plate is provided with a row The air outlet 3 is provided with an air inlet 4 at the bottom of the left and right side panels respectively, a control panel 11 is provided on the front side panel of the outer shell 1, a main control module 13 is provided on the control panel 11, and the air outlet 3 A fan cooling device 7 is installed on the inside, and a heat dissipation pipe group is installed on the inside of the fan heat dissipation device 7 toward the air inlet end. Several circulation pipes provided with independent joints on the air hole mounting plate 17, the air hole mounting plate 17 is fixed on the air inlet side of the fan cooling device 7 and covers the fan cooling device 7;

The control board 11 is provided with a cooling block 14, the outer end of the cooling block 14 is provided with a circular groove, and the upper side of the circular groove is provided with a pipe passage groove, and a coil pipe 15 is arranged in the circular groove. The two pipe bodies of the coil pipe 15 extend upward from the pipe groove and are connected to the circulation pipe through a connecting pipe 6. The control board 11 is provided with a temperature sensor 18, and the temperature sensor 18 senses the temperature on the cooling block 14. temperature;

The outer casing 1 is provided with a mounting frame, the mounting frame is provided with a multi-layer mounting plate, each layer of mounting plate is provided with a cooling block, each cooling block is provided with an output parallel copper bar and a DC parallel copper bar 9, the heat dissipation A horizontal jack is arranged in the block, and the left side of the horizontal jack is opened, and a through hole is provided on the right side of the jack, and a liquid collecting pipe 10 is inserted into the horizontal jack, and the liquid collecting pipe 10 is screwed through the screw. fixed, its right end is provided with a joint, the joint passes through the hole and is connected to an upward delivery pipeline 81 through a connecting pipe 6, and the upper side of the upward delivery pipeline 81 is bent to the left to the horizontal direction and passes through a connecting pipe 6. Pipe 6 is connected to the circulation pipe;

The inverter mounting plate 2 is provided with heat dissipation holes, and an aluminum radiator 8 is installed on the heat dissipation holes. The outward surface of the aluminum radiator 8 is provided with heat dissipation fins 82, and its inward surface is provided with a number of conveyors. Pipeline embedding groove, the conveying pipeline 81 is embedded in the conveying pipeline embedding groove;

Both the coil pipe 15 and the liquid collecting pipe 10 are provided with a volatile heat-conducting medium 16;

After the heat conduction medium 16 is volatilized by heat, the gaseous state formed will enter into the circulation pipe, and the circulation pipe is air-cooled to cool the gaseous heat conduction medium 16 into a liquid state and return to the coil 15 or the liquid collection pipe 10 .

A preferred technical solution of this embodiment: the circulation pipe includes a U-shaped pipe body 51 connected to the cooling block 14 through pipelines, and an annular pipe body 52 connected to the liquid collection pipe 10 through pipelines. The liquid pipe 10 is correspondingly connected to an annular pipe body 52 through a separate pipeline.

A preferred technical solution of this embodiment: the coiled tube 15 is circular as a whole, and a labyrinth is formed by continuous bending of a tube body in front and back to form a disc body.

A preferred technical solution of this embodiment: the outer casing 1 is an explosion-proof casing, which adopts an aluminum alloy outer casing.

A preferred technical solution of this embodiment: the main control module 13 is respectively connected to the temperature sensor 18 and the fan cooling device 7 through a circuit, and the temperature sensor 18 sends a signal to the main control module by sensing the temperature on the cooling block 14 A control module 13, the main control module 13 controls the fan speed of the fan cooling device 7 according to the temperature.

A preferred technical solution of this embodiment: both the vertical plate and the horizontal plate of the installation frame are provided with air passage holes 12 .

A preferred technical solution of this embodiment: the heat conduction medium 16 is ethylene glycol or propylene glycol.

A preferred technical solution of this embodiment: the cooling block is a copper cooling block or an aluminum cooling block.

A preferred technical solution of this embodiment: the heat dissipation block is an aluminum heat dissipation block.

Example 2:

As shown in Figure 2, after the inverter is started, the main control module 13, the output parallel copper bars and the DC parallel copper bars 9, and the fan cooling device 7 work, and the main control module 13, the output parallel copper bars and the DC parallel copper bars 9 emit heat , the components on the control board 11 will also emit a certain amount of heat.

After the fan cooling device 7 works, the fan rotates to discharge the air in the inner cavity of the frequency converter, and the air inlet 4 absorbs the external cold air. Entering the left chamber, the heat dissipated by the cooling block 14 on the control panel is taken away by the cold air, the heat transfer medium in the coil 15 is heated and volatilized, the gaseous heat transfer medium is sent to the circulation pipe through the pipeline, and the fan cools the circulation pipe to conduct heat When the medium is cooled, it forms a liquid and flows back to the coil, where it mixes with the heat transfer medium in the coil to cool down.

The heat dissipation principle of the liquid collecting pipe 10 is the same as that of the coil tube 15. The heat transfer medium is heated to form a gaseous state and enters the circulation pipe.

In summary, the utility model forms a comprehensive heat dissipation system through the combination of various heat dissipation methods. The cooling block is made of copper or aluminum, which has a good heat absorption effect. It absorbs the heat on the main control module and distributes it to the air. Among them, the coil on it is also made of aluminum, and the heat transfer medium in the coil volatilizes to form a gaseous state and is sent to the circulation pipe through the pipeline. Purpose.

The temperature sensor senses the temperature of the cooling block. When the temperature of the cooling block is too high, it sends a signal to the main control module. Tolerable value), the main control module reduces the fan speed to achieve the purpose of energy saving.

The output parallel copper bar and the DC parallel copper bar 9 also emit heat when they are working. The liquid collector built in the cooling block absorbs the heat. The heat transfer medium is volatilized after being heated to form a gaseous state and sent to the circulation pipe through the pipeline. The circulation pipe is cooled by the fan. After the heat conduction medium cools down, it forms a liquid and flows back into the liquid collection pipe to achieve the purpose of rapid heat dissipation.

There is also an aluminum radiator on the inverter mounting plate, and the aluminum radiator also has a heat dissipation effect. The gaseous heat transfer medium in the delivery pipeline will conduct part of the heat to the aluminum radiator, and then guide it to the outside air through the aluminum radiator. middle.

The temperature control and fan speed control of the utility model are easy to realize in the prior art, and the circuit structure thereof will not be described in detail in the utility model.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the specification of the utility model and the contents of the accompanying drawings may be directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (9)

1. The utility model provides an explosion-proof type converter of adjustable formula of temperature, includes shell body (1), shell body (1) is installed on equipment through converter mounting panel (2), is provided with air exit (3) on its roof, and the lower part of curb plate about it is provided with air intake (4) respectively, be provided with control panel (11) on the preceding curb plate of shell body (1), be provided with host system (13), its characterized in that on control panel (11): a fan heat dissipation device (7) is installed on the inner side of the air outlet (3), a heat dissipation pipe set is installed on the inner side of the fan heat dissipation device (7) towards the air inlet end, the heat dissipation pipe set comprises an air hole installation plate (17) provided with air passing holes and a plurality of circulation pipes which are horizontally arranged, installed and fixed on the air hole installation plate (17) and provided with independent joints, and the air hole installation plate (17) is fixed on the air inlet side of the fan heat dissipation device (7) and covers the fan heat dissipation device (7);

the cooling device is characterized in that a cooling block (14) is arranged on the control panel (11), a round groove is formed in the outer side end of the cooling block (14), a pipe passing groove is formed in the upper side of the round groove, a coil (15) is arranged in the round groove, two pipe bodies of the coil (15) extend upwards from the pipe passing groove and are connected to a circulating pipe through a connecting pipe (6), a temperature sensor (18) is arranged on the control panel (11), and the temperature sensor (18) senses the temperature of the cooling block (14);

the heat dissipation device is characterized in that the outer shell (1) is provided with a mounting frame, multiple layers of mounting plates are arranged on the mounting frame, each layer of mounting plate is provided with a heat dissipation block, each heat dissipation block is provided with an output parallel copper bar and a direct-current parallel copper bar, a horizontal jack is arranged in each heat dissipation block, the horizontal jack is opened to the left side, a via hole is formed in the right side of each heat dissipation block, a liquid collecting pipe (10) is inserted into each horizontal jack, each liquid collecting pipe (10) is fixed through a screw, a connector is arranged at the right side end of each liquid collecting pipe, the connector penetrates through the via hole and is connected with an upward conveying pipeline (81) through a connecting pipe (6), and the upper side of the upward;

the frequency converter mounting plate (2) is provided with heat dissipation holes, an aluminum radiator (8) is mounted on the heat dissipation holes, heat dissipation fins (82) are arranged on the outward surface of the aluminum radiator (8), a plurality of conveying pipeline embedded grooves are formed in the inward surface of the aluminum radiator, and the conveying pipelines (81) are embedded in the conveying pipeline embedded grooves;

volatile heat-conducting media (16) are arranged in the coil pipe (15) and the liquid collecting pipe (10);

after the heat-conducting medium (16) is heated and volatilized, the formed gas state can enter the circulating pipe, and the circulating pipe cools the gas state heat-conducting medium (16) through air cooling to form a liquid state which flows back into the coil pipe (15) or the liquid collecting pipe (10).

2. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the circulating pipe comprises a U-shaped pipe body (51) connected with the cooling block (14) through a pipeline and an annular pipe body (52) connected with the liquid collecting pipes (10) through a pipeline, and each liquid collecting pipe (10) is correspondingly connected with one annular pipe body (52) through an independent pipeline.

3. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the coil pipe (15) is integrally circular, and a labyrinth is formed by continuously bending the front and the back of a pipe body to form a disk body.

4. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the shell body (1) is an explosion-proof shell, and an aluminum alloy shell body is adopted.

5. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the main control module (13) is respectively connected with the temperature sensor (18) and the fan heat dissipation device (7) through circuits, the temperature sensor (18) sends signals to the main control module (13) through sensing the temperature on the cooling block (14), and the main control module (13) controls the fan rotating speed of the fan heat dissipation device (7) according to the temperature.

6. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the vertical plate and the horizontal plate of the mounting rack are both provided with air passing holes (12).

7. The explosion-proof frequency converter with adjustable temperature according to claim 1, wherein: the heat-conducting medium (16) is ethylene glycol or propylene glycol.

8. The explosion-proof type frequency converter with adjustable temperature according to any one of claims 1 to 7, wherein: the cooling block (14) is a copper material cooling block or an aluminum material cooling block.

9. The explosion-proof type frequency converter with adjustable temperature according to any one of claims 1 to 7, wherein: the radiating block is an aluminum radiating block.