Cooling device and system

Abstract

The utility model discloses a cooling device and system, and solves the technical problem that in the cooling process of a frequency converter at present, only a booster fan is arranged indoors, so that indoor air circulation is not smooth, and the cooling effect is poor. Comprising a first frequency conversion chamber, a second frequency conversion chamber, an air guide piece and a heat exchange piece. The first frequency conversion chamber is provided with a first accommodating cavity; the second frequency conversion chamber is provided with a second accommodating cavity; the air guide piece is provided with an air guide channel communicating with the first containing cavity and the second containing cavity. The heat exchange piece is arranged in the air guide piece; the air inlet end of the frequency converter is located in the first containing cavity, and the air outlet end of the frequency converter is located in the second containing cavity, or the air inlet end of the frequency converter is located in the second containing cavity, and the air outlet end of the frequency converter is located in the first containing cavity. The circulation path formed by the first frequency conversion chamber, the second frequency conversion chamber and the air guide piece enables the whole overweighing air volume to be constant, the final pressure is constant, indoor negative pressurization is avoided, and the indoor environment is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of cooling devices, and specifically relates to a cooling device and system. Background Art

[0002] When the high-voltage inverter is working, the internal components will generate a lot of heat. In order to ensure the normal working temperature of the components, they must be cooled through air heat exchange. Generally, a high-power axial flow fan is installed on the top of the inverter cabinet, and an air inlet and filter are installed on the cabinet door. Under the action of the fan, the air in the inverter enters the inverter from the air inlet and is discharged to the outside through the air duct on the top of the cabinet to achieve a cooling effect.

[0003] In the prior art, in order to ensure the cooling effect, a high-power air conditioner is installed in the inverter room where the inverter is located to cool the air in the inverter room. However, during operation, due to the large heat exchange air volume of the inverter, the circulating air volume entering the inverter room is less than the cooling air volume, resulting in a large negative pressure in the room, further bringing outdoor dust into the room, causing problems such as inverter overtemperature alarm and filter clogging. Summary of the invention

[0004] In order to solve the technical problem that during the current inverter cooling process, only installing a booster fan indoors can easily cause poor indoor air circulation and result in poor cooling effect, the present application provides a cooling device and system.

[0005] In a first aspect of the present application, a cooling device is provided, comprising a first frequency conversion chamber, a second frequency conversion chamber, an air guide member, and a heat exchange member;

[0006] The first frequency conversion chamber is provided with a first accommodating cavity;

[0007] The second frequency conversion chamber is provided with a second accommodating cavity;

[0008] The air guide member is provided with an air guide channel communicating with the first accommodating cavity and the second accommodating cavity;

[0009] The heat exchange member is arranged in the air guide member;

[0010] Among them, the air inlet end of the inverter is located in the first accommodating cavity, and the air outlet end of the inverter is located in the second accommodating cavity, or the air inlet end of the inverter is located in the second accommodating cavity, and the air outlet end of the inverter is located in the first accommodating cavity.

[0011] In some embodiments, under the condition that the air inlet end of the inverter is located in the first accommodating cavity and the air outlet end of the inverter is located in the second accommodating cavity, the second accommodating cavity is located above the first accommodating cavity.

[0012] In some embodiments, the first frequency conversion chamber and the second frequency conversion chamber are both provided with an opening for communicating with the air guide member at one end close to the air guide member.

[0013] In some embodiments, the air guide member is provided with a connecting pipe connecting the air guide channel and the outside.

[0014] In some embodiments, an on-off valve is provided on the connecting pipe.

[0015] In some embodiments, the heat exchange element is close to the air inlet end of the inverter.

[0016] In some embodiments, the heat exchange element is an air-to-water heat exchanger.

[0017] In some embodiments, a booster fan is further provided in the air guide member, and the booster fan is located at the front end of the heat exchange member along the wind moving direction.

[0018] In some embodiments, the booster fans are provided in plurality, and the plurality of booster fans are arranged at intervals along the direction of wind movement.

[0019] In a second aspect of the present application, a cooling system is provided, comprising a circulating water pump station, comprising a plurality of parallel-connected water pump units and the cooling device;

[0020] Wherein, the heat exchange element of the cooling device is connected to the water pump unit.

[0021] According to the cooling device provided in the embodiment of the present application, the cooling device comprises a first frequency conversion chamber, a second frequency conversion chamber, an air guide and a heat exchanger; the first frequency conversion chamber is provided with a first accommodating chamber; the second frequency conversion chamber is provided with a second accommodating chamber; the air guide is provided with an air guide channel connected to the first accommodating chamber and the second accommodating chamber; the heat exchanger is arranged in the air guide; wherein the air inlet end of the frequency converter is located in the first accommodating chamber, and the air outlet end of the frequency converter is located in the second accommodating chamber, or the air inlet end of the frequency converter is located in the second accommodating chamber, and the air outlet end of the frequency converter is located in the first accommodating chamber;

[0022] The prior art equips the frequency conversion room where the frequency converter is located with a high-power air conditioner to cool the air in the frequency conversion room. The present application arranges the heat exchanger in the air guide, and the air guide is connected to the first frequency conversion room and the second frequency conversion room, so that the air guide, the first frequency conversion room and the second frequency conversion room form a circulation path. Compared with the prior art, the circulation path of the present application allows the hot air to move from the air outlet of the frequency converter to the first accommodating chamber or the second accommodating chamber, and then move from the first accommodating chamber or the second accommodating chamber to the air guide channel, and after heat exchange by the heat exchanger arranged in the air guide, it moves to the second accommodating chamber or the first accommodating chamber. The entire overpressure is constant, and the final pressure is constant, which avoids the generation of negative pressurization in the room, improves the indoor environment, and can prevent outdoor dust from being brought into the room, and avoid defects such as frequency converter overtemperature alarm and filter clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a cooling device in an embodiment of the present application is shown.

[0024] Figure 2 A schematic structural diagram of a heat exchange component of a cooling device in an embodiment of the present application is shown.

[0025] Description of reference numerals:

[0026] 100. The first frequency conversion room;

[0027] 200, the second frequency conversion room;

[0028] 300, air guide;

[0029] 310, connecting pipe;

[0030] 400, heat exchange parts;

[0031] 410, frame; 420, heat sink fins; 430, copper coil;

[0032] 500, booster fan;

[0033] 600, frequency converter;

[0034] 610. Bellows; 620. Fan. DETAILED DESCRIPTION

[0035] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] A first embodiment of the present application provides a cooling device to provide a cooling environment with constant pressure.

[0037] See also Figure 1, the cooling device provided by the embodiment of the present application includes a first frequency conversion chamber 100, a second frequency conversion chamber 200, an air guide 300 and a heat exchanger 400; the first frequency conversion chamber 100 is provided with a first accommodating chamber; the second frequency conversion chamber 200 is provided with a second accommodating chamber, and the second accommodating chamber is independent of the first accommodating chamber; the air guide 300 is provided with an air guide channel connected to the first accommodating chamber and the second accommodating chamber to form a wind circulation channel; in some embodiments, the air guide 300 is a U-shaped channel, one end of which is connected to the first accommodating chamber and the other end is connected to the second accommodating chamber; the heat exchanger 400 is arranged in the air guide 300, and the air guide channel of the air guide 300 is divided into two non-connected air inlet channels and air outlet channels to cool the hot air and perform heat exchange, the air inlet end of the heat exchanger 400 is connected to the air inlet channel, and the air outlet end of the heat exchanger 400 is connected to the air outlet channel; in some embodiments, the air inlet The channel is connected to the first accommodating chamber, and the air outlet channel is connected to the second accommodating chamber; in some embodiments, the air inlet channel is connected to the second accommodating chamber, and the air outlet channel is connected to the first accommodating chamber; wherein, the air inlet end of the inverter 600 is located in the first accommodating chamber, and the air outlet end of the inverter 600 is located in the second accommodating chamber, or, the air inlet end of the inverter 600 is located in the second accommodating chamber, and the air outlet end of the inverter 600 is located in the first accommodating chamber; a first frequency conversion chamber 100 and a second frequency conversion chamber 200 are provided independently of each other, so as to separate the hot air zone and the cold air zone, and facilitate air circulation; in some embodiments, the inverter 600 includes a bellows 610 and a fan 620, the fan 620 is located in the second accommodating chamber, and the bellows 610 is located in the first accommodating chamber; in some embodiments, the inverter 600 includes a bellows 610 and a fan 620, the fan 620 is located in the first accommodating chamber, and the bellows 610 is located in the second accommodating chamber.

[0038] In some embodiments, under the condition that the air inlet end of the inverter 600 is located in the first accommodating cavity and the air outlet end of the inverter 600 is located in the second accommodating cavity, the second accommodating cavity is located above the first accommodating cavity, the air inlet channel is connected to the second accommodating cavity, and the air outlet channel is connected to the first accommodating cavity; in some embodiments, under the condition that the air inlet end of the inverter 600 is located in the second accommodating cavity and the air outlet end of the inverter 600 is located in the first accommodating cavity, the first accommodating cavity is located above the second accommodating cavity, the air inlet channel is connected to the first accommodating cavity, and the air outlet channel is connected to the second accommodating cavity.

[0039] In some embodiments, the first frequency conversion chamber 100 and the second frequency conversion chamber 200 are both provided with openings for communicating with the air guide member 300 at one end close to the air guide member 300, so as to reduce the size of the air guide member 300, shorten the overall length of the air guide member 300, reduce the air circulation resistance, and help the air to diffuse into the inverter 600 room after uniform heat exchange, thereby improving the flow efficiency. In some embodiments, the first frequency conversion chamber 100 and the second frequency conversion chamber 200 are both provided with openings, and the openings are located on the same side.

[0040] In some embodiments, the air guide member 300 is provided with a connecting tube 310 connecting the air guide channel and the outside. In some embodiments, the air guide member 300 is provided with a connecting tube 310 connecting the air inlet channel and the outside to provide wind supply in time when the circulation is not smooth. In some embodiments, when the first accommodating cavity is located above the second accommodating cavity, the connecting tube 310 is close to the first accommodating cavity. In some embodiments, when the second accommodating cavity is located above the first accommodating cavity, the connecting tube 310 is close to the second accommodating cavity.

[0041] In some embodiments, an on-off valve is provided on the connecting pipe 310 to control the opening and closing of the connecting pipe 310 .

[0042] In some embodiments, the heat exchange element 400 is close to the air inlet end of the inverter 600 to increase the cooling efficiency of the cold air; in some embodiments, the heat exchange element 400 is located at the end of the air guide 300.

[0043] See also Figure 2 In some embodiments, the heat exchange element 400 is an air-to-water heat exchanger, including a frame 410, a copper coil 430 disposed in the frame 410, and heat dissipation fins 420, and the copper coil 430 is provided with a cooling channel for circulating cooling water.

[0044] In some embodiments, a booster fan 500 is also provided in the air guide 300. The booster fan 500 is located at the front end of the heat exchange component 400 along the wind moving direction to assist the air outlet of the inverter 600 to drive the air flow, overcome the resistance of the air duct, etc., and realize the constant pressure flow of cooling air volume; in some embodiments, the booster fan 500 is located in the middle of the air guide 300.

[0045] In some embodiments, a plurality of booster fans 500 are provided, and the plurality of booster fans 500 are arranged at intervals along the wind moving direction to further increase the air flow effect.

[0046] A second embodiment of the present application provides a cooling system to provide a cooling environment with constant pressure.

[0047] The cooling system provided in the embodiment of the present application includes a circulating water pump station and a cooling device. The circulating water pump station includes a plurality of parallel water pump units. The heat exchange component 400 of the cooling device is connected to the water pump unit. The entire system is energy-efficient and efficient, and utilizes the surplus of the factory's existing circulating water system to achieve heat exchange cooling, thereby saving electricity consumption.

[0048] The process of the cooling device of the present application is described in detail below:

[0049] Under the condition that the air inlet end of the inverter is located in the first accommodating chamber and the air outlet end of the inverter is located in the second accommodating chamber, the second accommodating chamber is located above the first accommodating chamber, the air inlet channel is connected to the second accommodating chamber, and the air outlet channel is connected to the first accommodating chamber; the hot air inside the inverter enters the second accommodating chamber, and then enters the air guide member from the second accommodating chamber. Since a booster fan is provided in the air guide member, the hot air enters the heat exchange member through the guiding action of the booster fan for cooling, and then passes from the heat exchange member to the first accommodating chamber.

[0050] The cooling device and system of the present application have at least the following advantages:

[0051] (1) The present application arranges the heat exchange element in the air guide element, and the air guide element is connected to the first frequency conversion chamber and the second frequency conversion chamber, so that the air guide element, the first frequency conversion chamber and the second frequency conversion chamber form a circulation path. Compared with the prior art, a high-power air conditioner is installed in the frequency conversion chamber where the frequency converter is located to cool the air in the frequency conversion chamber. The circulation path of the present application allows the hot air to move from the air outlet of the frequency converter to the first accommodating chamber or the second accommodating chamber, and then move from the first accommodating chamber or the second accommodating chamber to the air guide channel, and after heat exchange by the heat exchange element arranged in the air guide element, move to the second accommodating chamber or the first accommodating chamber. The entire overpressure is constant, and the final pressure is constant, which avoids the generation of negative pressure in the room, improves the indoor environment, and can prevent outdoor dust from being brought into the room, and avoid defects such as the frequency converter over-temperature alarm and filter clogging.

[0052] (2) The first frequency conversion chamber and the second frequency conversion chamber of the present application are both provided with an opening for connecting with the air guide member near one end of the air guide member, so as to reduce the size of the air guide member, shorten the overall length of the air guide member, reduce the air circulation resistance, help the air to diffuse into the frequency converter room after uniform heat exchange, and improve the flow efficiency.

[0053] (3) A booster fan is also provided in the air guide of the present application. The booster fan is located at the front end of the heat exchanger along the wind movement direction to assist the inverter air outlet to drive the air flow, overcome the resistance of the air duct, and realize the constant pressure flow of cooling air volume.

[0054] (4) The cooling system of the present application includes a circulating water pump station and a cooling device. The circulating water pump station includes a plurality of parallel water pump units. The heat exchange components of the cooling device are connected to the water pump units. The entire system is energy-efficient and efficient. The surplus of the factory's existing circulating water system is used to achieve heat exchange cooling, thereby saving electricity consumption. The functional requirement of converting hot air into cold air is achieved through the water-cooled heat exchange principle. The cooling water comes from the factory's circulating water pump station, without increasing additional energy consumption.

[0055] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cooling device for cooling a frequency converter, characterized in that: include: A first frequency conversion chamber is provided with a first accommodating cavity; The second frequency conversion chamber is provided with a second accommodating cavity; An air guide member, provided with an air guide channel communicating with the first accommodating cavity and the second accommodating cavity; A heat exchange member, disposed in the air guide member; Among them, the air inlet end of the inverter is located in the first accommodating cavity, and the air outlet end of the inverter is located in the second accommodating cavity, or the air inlet end of the inverter is located in the second accommodating cavity, and the air outlet end of the inverter is located in the first accommodating cavity.

2. The cooling device according to claim 1, characterized in that: Under the condition that the air inlet end of the frequency converter is located in the first accommodating cavity and the air outlet end of the frequency converter is located in the second accommodating cavity, the second accommodating cavity is located above the first accommodating cavity.

3. The cooling device according to claim 1, characterized in that: The first frequency conversion chamber and the second frequency conversion chamber are both provided with openings for communicating with the air guide member at one end close to the air guide member.

4. The cooling device according to any one of claims 1 to 3, characterized in that: The air guide member is provided with a connecting pipe connecting the air guide channel and the outside.

5. The cooling device according to claim 4, characterized in that: An opening and closing valve is arranged on the connecting pipe.

6. The cooling device according to any one of claims 1 to 3, characterized in that: The heat exchange element is close to the air inlet end of the inverter.

7. The cooling device according to any one of claims 1 to 3, characterized in that: The heat exchange element is an air-to-water heat exchanger.

8. The cooling device according to any one of claims 1 to 3, characterized in that: A booster fan is also provided in the air guide member, and the booster fan is located at the front end of the heat exchange member along the moving direction of the wind.

9. The cooling device according to claim 8, characterized in that: There are multiple booster fans, and the multiple booster fans are arranged at intervals along the moving direction of the wind.

10. A cooling system, characterized in that: include: Circulating water pumping station, including multiple parallel-connected water pumping units; The cooling device according to any one of claims 1 to 9; in, The heat exchange element of the cooling device is connected to the water pump unit.

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