Energy storage converter cabinet adapting to environmental wind to switch heat dissipation air ducts

Abstract

The invention belongs to the technical field of energy storage converters, and discloses an energy storage converter cabinet adapting to environmental wind switching heat dissipation air ducts. At least one first air outlet is formed in the bottom surface and / or the side wall of the lower end of the cabinet body; at least one air inlet and at least one second air outlet are formed in the side wall of the upper end of the cabinet body, and the air inlet and the second air outlet are arranged in different planes; valve parts are arranged in the first air outlets and the second air outlets, and the valve parts are used for controlling the first air outlets or the second air outlets to be opened or closed correspondingly; the air inlet mode at the upper end is adopted, the possibility that dust on the bottom face is sucked in during air inlet is effectively reduced, the first air outlet and / or the second air outlet are / is selectively opened or closed according to the air speed and the air direction of environment air through the arrangement of the air inlet and the second air outlet which are arranged on the different faces and in cooperation with the first air outlet and the valve part, and therefore the air inlet and the second air outlet are formed. And self-adaptive switching is carried out on the heat dissipation air duct of the cabinet body.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of energy storage converters, and particularly relates to an energy storage converter cabinet body capable of switching a heat dissipation air duct according to ambient wind. BACKGROUND

[0002] An energy storage converter (PCS) is a core power regulating device of an energy storage system. Electrical elements such as IGBTs arranged in the energy storage converter cabinet body generate a large amount of heat during operation. In order to ensure reliable operation of the device, an effective heat dissipation method must be used to dissipate heat inside the cabinet body. At present, forced air cooling is generally used for heat dissipation of outdoor energy storage converter cabinet bodies. Common air ducts are mostly fixed structures, mainly including two types: an upper air inlet and a lower air outlet type and an upper air outlet and a lower air inlet type.

[0003] The upper air inlet and lower air outlet type discharges hot air from the lower end of the cabinet body. In the case of no wind or slight wind, the hot air discharged from the bottom rises due to thermal buoyancy and is easily sucked into the upper air inlet, forming a short circuit of hot air flow and significantly reducing the heat dissipation efficiency. Although the upper air outlet and lower air inlet type can alleviate the problem of hot air backflow, the air inlet is located near the ground, and ground dust is easily sucked into the cabinet body during air intake, affecting the long-term stable operation of the cabinet body. Therefore, the fixed heat dissipation air duct in the prior art cannot adapt to the ambient wind, is prone to cause hot air backflow or dust suction, and lacks self-adaptive adjustment of the heat dissipation air duct. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide an energy storage converter cabinet body capable of switching a heat dissipation air duct according to ambient wind, which solves the problem that the fixed heat dissipation air duct in the prior art cannot adapt to the ambient wind, is prone to cause hot air backflow or dust suction, and lacks self-adaptive adjustment of the heat dissipation air duct.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] An energy storage converter cabinet body capable of switching a heat dissipation air duct according to ambient wind, comprising a cabinet body;

[0007] At least one first air outlet is arranged on the bottom surface and / or the side wall of the lower end of the cabinet body.

[0008] At least one air inlet and at least one second air outlet are arranged on the side wall of the upper end of the cabinet body, and the air inlet and the second air outlet are arranged on different surfaces.

[0009] Valve parts are arranged in the first air outlet and the second air outlet, and the valve parts are used to control the opening or closing of the corresponding first air outlet or second air outlet.

[0010] When the wind speed of the ambient wind is less than the wind speed threshold, all the first air outlets are closed, and all the second air outlets are opened.

[0011] When the wind speed of the ambient wind is greater than or equal to the wind speed threshold:

[0012] If the ambient wind does not blow to any second air outlet, then all the second air outlets and the first air outlets are all opened.

[0013] If the ambient wind blows to any second air outlet, then the second air outlet blown by the ambient wind is closed, and the remaining second air outlets and the first air outlets are opened.

[0014] Further, the second air outlets and the air inlet are arranged in a staggered manner in the vertical direction and form a height difference.

[0015] Further, a surrounding plate is fixed inside the cabinet body, and the surrounding plate is used to isolate the air inlet and the second air outlets.

[0016] Further, the surrounding plate is arranged in a ring shape along the inner side circumferential wall of the cabinet body, and the inner side of the surrounding plate encloses an inner cavity for accommodating electrical elements.

[0017] The outer side of the surrounding plate and the inner side circumferential wall of the cabinet body enclose an exhaust passage;

[0018] The inner cavity and the exhaust passage are connected only at the lower end, the air inlet and the inner cavity are connected, and the first air outlet and the second air outlet are connected with the exhaust passage.

[0019] Further, an airflow driving part is fixedly installed at the upper end of the inner cavity, which is used to drive the external airflow to enter from the air inlet and flow downward along the inner cavity.

[0020] Further, a wind power monitoring unit for monitoring the wind speed and wind direction of the ambient wind is installed at the top of the cabinet body.

[0021] Further, the valve part includes an electric louver or an electric air valve.

[0022] Further, the wind power monitoring unit includes an ultrasonic wind speed sensor, a rotating cup wind speed sensor or a heat sensitive wind speed sensor.

[0023] Further, the airflow driving part includes an axial flow fan or a centrifugal fan.

[0024] Further, a filter part is arranged on the air inlet.

[0025] The beneficial effects of the present application are:

[0026] 1. The application adopts an air inlet mode of upper end air inlet, effectively reduces the possibility of sucking dust on the bottom surface during air inlet, and through the arrangement of the air inlet and the second air outlet in different planes, cooperates with the first air outlet and the valve part, selectively opens or closes the first air outlet and / or the second air outlet according to the wind speed and direction of the environmental wind, and self-adaptively switches the cabinet heat dissipation air duct;

[0027] In the no wind or low wind speed working condition, the first air outlet at the lower end is closed, only the second air outlet at the upper end is used for exhaust, the hot air is naturally lifted away from the air inlet by using the thermal buoyancy, and the hot air is prevented from being sucked back into the cabinet by the air inlet;

[0028] In the high wind speed condition, only the second air outlet in the wind direction is closed, the problem of exhaust blockage or hot air backflow is avoided, and the hot air discharged from the second air outlet and / or the first air outlet is horizontally diffused and away from the air inlet by cooperating with the environmental wind, so that the hot air sucked back into the cabinet by the air inlet is reduced;

[0029] 2. The air inlet and the second air outlet are arranged in different vertical directions and form a height difference, which can effectively reduce the possibility of the horizontally diffused hot air being sucked into the air inlet by the environmental wind, and reduce the occurrence of air flow short circuit;

[0030] 3. The air inlet and the second air outlet are isolated by the setting of the surrounding plate, the part of air entering the cabinet from the air inlet is prevented from directly overflowing from the second air outlet, the air inlet is prevented from interfering with the exhaust operation of the second air outlet, the air forced to enter the inner cavity formed by the inner side of the surrounding plate, and the electrical elements in the inner cavity are cooled from top to bottom, so that the heat dissipation efficiency and reliability are effectively guaranteed; the exhaust passage is formed between the surrounding plate and the inner wall of the cabinet, and the hot air is discharged through the first air outlet and / or the second air outlet connected with the exhaust passage. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Fig. 1 It is the overall structure schematic diagram of the application;

[0033] Fig. 2 It is the partial structure schematic diagram of the air inlet of the application;

[0034] Fig. 3 It is the partial structure schematic diagram of the surrounding plate of the application;

[0035] Fig. 4 is a schematic diagram of the part structure of the inner cavity of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0037] As shown in Figs. 1 to 4 Fig. 1, an energy storage converter cabinet 100 adapted to ambient wind switching heat dissipation air duct includes a cabinet 100;

[0038] At least one first air outlet 101 is formed on the bottom surface and / or the side wall of the lower end of the cabinet 100;

[0039] At least one air inlet 102 and at least one second air outlet 103 are formed on the side wall of the upper end of the cabinet 100, and the air inlet 102 and the second air outlet 103 are arranged in different planes;

[0040] Valve parts 200 are arranged in the first air outlet 101 and the second air outlet 103, and the valve parts 200 are used to control the opening or closing of the corresponding first air outlet 101 or second air outlet 103;

[0041] When the wind speed of the ambient wind is less than the wind speed threshold, the first air outlet 101 is closed, and the second air outlet 103 is opened;

[0042] When the wind speed of the ambient wind is greater than or equal to the wind speed threshold:

[0043] If the ambient wind does not blow to any second air outlet 103, then all the second air outlets 103 and the first air outlet 101 are opened;

[0044] If the ambient wind blows to any second air outlet 103, then the second air outlet 103 blown by the ambient wind is closed, and the remaining second air outlets 103 and the first air outlet 101 are opened;

[0045] When there is no wind or the wind speed is lower than the wind speed threshold, the discharged hot air directly diffuses upward along the outside of the cabinet 100, if the first air outlet 101 is used to discharge the hot air at this time, part of the hot air diffusing upward will be reabsorbed into the cabinet 100 by the air inlet 102, causing air flow short circuit; and in the present application, when the wind speed of the environmental wind is less than the wind speed threshold, the first air outlet 101 is closed and the second air outlet 103 is opened, since the air inlet 102 and the second air outlet 103 are located at the upper end position of the side wall of the cabinet 100, the hot air discharged by the second air outlet 103 naturally diffuses upward to a position height exceeding the air inlet 102, and the second air outlet 103 and the air inlet 102 are arranged in different planes, effectively reducing the possibility of hot air being reabsorbed into the air inlet 102 and causing air flow short circuit;

[0046] When the wind speed exceeds the wind speed threshold, if the environmental wind does not blow to any second air outlet 103, at this time the first air outlet 101 and the second air outlet 103 are opened, the environmental wind can quickly blow away the hot air and diffuse along the wind direction, which can also effectively reduce the possibility of the discharged hot air being sucked into the cabinet 100 by the air inlet 102; if the environmental wind blows to any second air outlet 103, a high pressure area will be formed outside the second air outlet 103, which will cause the second air outlet 103 to be unable to effectively discharge hot air, and even cause the hot air to flow back into the cabinet 100, so it is necessary to close the second air outlet 103 blown by the environmental wind;

[0047] And the air inlet 102 is arranged at the upper end portion of the cabinet 100, which effectively reduces the possibility of dust being sucked in when air is taken in;

[0048] The present application selectively opens or closes the first air outlet 101 and / or the second air outlet 103 according to the wind speed and direction of the environmental wind through the arrangement of the valve part 200, effectively reducing the problem of air flow short circuit caused by the reabsorption of the discharged hot air in the cabinet 100 into the air inlet 102, and effectively improving the heat dissipation effect of the cabinet 100.

[0049] Preferably, a plurality of first air outlets 101 are arranged at the lower end position of the side wall of the cabinet 100;

[0050] Among them, the optimal scheme is that the first air outlet 101 is arranged at the lower end of each side wall of the cabinet 100; it should be noted that when the environmental wind blows to any first air outlet 101, the first air outlet 101 can also be closed if necessary, to avoid exhaust difficulty or hot air backflow.

[0051] Preferably, a filter part 800 is arranged on the air inlet 102, which includes an air inlet grille or filter screen fixed on the air inlet 102, to prevent sundries from entering the air inlet 102.

[0052] It should be noted that the cabinet body 100 is in the form of a rectangular shell with four side walls;

[0053] Preferably, the total number of side walls of the cabinet body 100 in which the air inlet 102 and the second air outlet 103 are arranged is four, so as to ensure the maximum utilization of the upper end side wall of the cabinet body 100;

[0054] The side wall in which the air inlet 102 or the second air outlet 103 is arranged has one or more corresponding air inlets 102 or second air outlets 103;

[0055] Preferably, the side wall in which the air inlet 102 is arranged and the side wall in which the second air outlet 103 is arranged are arranged in an adjacent or opposite position.

[0056] The wind speed monitoring unit 300 for monitoring the wind speed and direction of the ambient wind is installed on the top of the cabinet body 100;

[0057] The ambient wind is monitored by the wind speed monitoring unit 300, so as to selectively open or close the first air outlet 101 and the second air outlet 103 according to the actual scheme.

[0058] The second air outlet 103 and the air inlet 102 are arranged in a staggered manner in the vertical direction and form a height difference. When the wind speed is greater than or equal to the wind speed threshold value, the ambient wind will blow the hot air discharged from the second air outlet 103 to the horizontal direction for diffusion. If the positions of the second air outlet 103 and the air inlet 102 are at the same height, the horizontally diffused hot air will still be sucked into the air inlet 102, causing air flow short circuit;

[0059] By arranging the air inlet 102 and the second air outlet 103 in the vertical direction to form a height difference, the possibility of the horizontally diffused hot air being sucked into the air inlet 102 by the ambient wind can be effectively reduced, and the occurrence of air flow short circuit can be reduced;

[0060] Preferably, the arrangement of the air inlet 102 and the second air outlet 103 in the present application has the following two schemes:

[0061] Scheme one: the lower end surface of the air inlet 102 is higher than or equal to the upper end surface of the second air outlet 103;

[0062] Scheme two: the lower end surface of the second air outlet 103 is higher than or equal to the upper end surface of the air inlet 102;

[0063] Both of the two schemes can meet the design requirements, and the optimal design scheme is scheme two, which ensures that the second air outlet 103 is higher than the air inlet 102, so that the hot air just discharged from the second air outlet 103 is located in the area above the height of the air inlet 102 under the conditions of no wind or light wind, and the hot air is diffused vertically upward, which further reduces the possibility of the hot air discharged from the second air outlet 103 being sucked into the air inlet 102.

[0064] The cabinet body 100 is internally fixed with a baffle plate 400, which is used to isolate the air inlet 102 and the second air outlet 103; by arranging the annular baffle plate 400 inside the cabinet body 100, the air inlet 102 and the second air outlet 103 are effectively physically isolated, avoiding the part of the air entering the cabinet body 100 from the air inlet 102 directly overflowing from the second air outlet 103, and at the same time avoiding the interference of the air inlet 102 on the exhaust operation of the second air outlet 103.

[0065] The baffle plate 400 is annularly arranged along the inner side circumferential wall of the cabinet body 100, and the inner side of the baffle plate 400 forms an inner cavity 500 for accommodating electrical components;

[0066] The outer side of the baffle plate 400 and the inner side circumferential wall of the cabinet body 100 form an exhaust passage 600;

[0067] The inner cavity 500 and the exhaust passage 600 are only connected at the lower end, the air inlet 102 is connected with the inner cavity 500, and the first air outlet 101 and the second air outlet 103 are both connected with the exhaust passage 600;

[0068] By annularly arranging the baffle plate 400 along the inner side circumferential wall of the cabinet body 100, the forcibly inhaled air must enter the inner cavity 500 and cool the electrical components in the inner cavity 500 from top to bottom, effectively ensuring the heat dissipation efficiency and reliability;

[0069] Preferably, the electrical components include IGBT modules and electric reactors arranged in the inner cavity 500, and after the electrical components are installed, there is still a gap flow channel in the inner cavity 500 for the air to move from top to bottom.

[0070] The inner cavity 500 is fixedly installed with an airflow driving part 700 at the upper end, which is used to drive the external airflow to enter from the air inlet 102 and flow downward along the inner cavity 500;

[0071] By arranging the airflow driving part 700 at the upper end of the inner cavity 500, the traditional passive heat dissipation is changed to active suction of external air, and the forcibly inhaled air flows downward along the inner cavity 500, effectively improving the air flow rate in the inner cavity 500, accelerating the air flow efficiency in the cabinet body 100, facilitating the rapid removal of the heat generated by the electrical components, and improving the heat dissipation effect.

[0072] The valve part 200 includes an electric louver or an electric air valve; preferably, the cabinet body 100 is also provided with a PLC controller, which is used to receive the monitoring results of the wind power monitoring unit 300 and control the valve part 200 according to the monitoring results, thereby opening or closing the first air outlet 101 and / or the second air outlet 103;

[0073] It should be noted that the circuit connection between the wind monitoring unit 300, the PLC controller and the valve part 200 is prior art, and will not be described in detail in this application.

[0074] The wind monitoring unit 300 includes an ultrasonic wind speed sensor, a rotating cup wind speed sensor or a thermal wind speed sensor.

[0075] The thermal wind speed sensor and the ultrasonic wind speed sensor have high precision and low starting wind speed, and can sensitively capture slight wind changes.

[0076] The rotating cup wind speed sensor has a solid structure and good long-term stability, and is suitable for harsh outdoor environments.

[0077] According to different application scenarios and cost budgets, a suitable wind monitoring unit 300 can be adaptively selected.

[0078] The airflow driving part 700 includes an axial fan or a centrifugal fan.

[0079] The wind speed threshold is 1.5 m / s; when the wind speed reaches 1.5 m / s or more, the natural upward floating of hot air can be effectively overcome, and the hot air is blown horizontally by the environmental wind.

[0080] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0081] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An energy storage converter cabinet with an adaptive cooling duct for switching between ambient wind conditions, comprising a cabinet (100), characterized in that, At least one first air outlet (101) is provided on the bottom surface and / or side wall at the lower end of the cabinet (100); At least one air inlet (102) and at least one second air outlet (103) are provided on the side wall at the upper end of the cabinet (100), and the air inlet (102) and the second air outlet (103) are arranged in opposite directions; A valve section (200) is provided in both the first air outlet (101) and the second air outlet (103). The valve section (200) is used to control the opening or closing of the corresponding first air outlet (101) or second air outlet (103). When the ambient wind speed is less than the wind speed threshold, the first air outlet (101) is closed and the second air outlet (103) is open. When the ambient wind speed is greater than or equal to the wind speed threshold: If the ambient wind does not blow towards any of the second air outlets (103), then both the second air outlet (103) and the first air outlet (101) will be fully opened; If the ambient wind blows towards any of the second air outlets (103), then the second air outlet (103) towards which the ambient wind blows is closed, and the other second air outlets (103) and the first air outlet (101) are all opened.

2. The energy storage converter cabinet with an environmentally adaptable heat dissipation duct according to claim 1, characterized in that, The second air outlet (103) and the air inlet (102) are arranged in a staggered manner in the vertical direction and form a height difference.

3. The energy storage converter cabinet with an environmentally adaptable airflow switching heat dissipation duct as described in claim 2, characterized in that, The cabinet (100) has a partition (400) fixed inside, which is used to isolate the air inlet (102) from the second air outlet (103).

4. The energy storage converter cabinet with an environmentally adaptable heat dissipation duct according to claim 3, characterized in that, The enclosure (400) is arranged in a ring along the inner perimeter wall of the cabinet (100), and the inner side of the enclosure (400) encloses to form an inner cavity (500) for accommodating electrical components; The outer side of the enclosure (400) and the inner perimeter wall of the cabinet (100) enclose each other to form an exhaust channel (600); The inner cavity (500) and the exhaust channel (600) are connected only at their lower ends. The air inlet (102) is connected to the inner cavity (500). The first air outlet (101) and the second air outlet (103) are both connected to the exhaust channel (600).

5. The energy storage converter cabinet with an environmentally adaptable airflow switching heat dissipation duct as described in claim 4, characterized in that, An airflow drive unit (700) is fixedly installed at the upper end of the inner cavity (500) to drive the external airflow to enter from the air inlet (102) and flow downward along the inner cavity (500).

6. The energy storage converter cabinet with an environmentally adaptable heat dissipation duct according to claim 1, characterized in that, The top of the cabinet (100) is equipped with a wind force monitoring unit (300) for monitoring the wind speed and direction of the ambient wind.

7. The energy storage converter cabinet with an environmentally adaptable airflow switching cooling duct as described in claim 1, characterized in that, The valve section (200) includes an electric louver or an electric air valve.

8. The energy storage converter cabinet with an environmentally adaptable heat dissipation duct according to claim 6, characterized in that, The wind monitoring unit (300) includes an ultrasonic wind speed sensor, a cup wind speed sensor, or a thermal wind speed sensor.

9. The energy storage converter cabinet with an environmentally adaptable airflow switching cooling duct as described in claim 5, characterized in that, The airflow drive unit (700) includes an axial flow fan or a centrifugal fan.

10. The energy storage converter cabinet with an environmentally adaptable heat dissipation duct according to claim 1, characterized in that, A filter element (800) is provided on the air inlet (102).

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