A wind-sand-resistant heat-dissipating transformer device

Abstract

The present invention discloses an anti-wind and sand heat dissipation transformer device, including a box body, a heat exchange component and a first blower component. The box body is provided with a accommodating cavity for accommodating electrical components. The box body is also provided with a heat dissipation duct independent of the accommodating cavity, an air inlet connected to the head end of the heat dissipation duct and an air outlet connected to the tail end of the heat dissipation duct. The heat exchange component is arranged in the box body, and at least part of the heat exchange component is located in the accommodating cavity and at least part of the heat exchange component is located in the heat dissipation duct. The first blower component is arranged in the box body and is located in the heat dissipation duct. The first blower component has at least a first operating state and a second operating state. In the first operating state, the first blower component guides the airflow from the air inlet to the air outlet. In the second operating state, the first blower component guides the airflow from the air outlet to the air inlet. This design effectively prevents dust from entering the accommodating cavity, maintains a good heat dissipation effect, and self-cleans to extend the time of effective heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a wind-sand-resistant heat-dissipating transformer device. Background Art

[0002] At present, the development of new energy is gradually spreading to Gobi, deserts, wastelands and other areas, where the environment is harsh and the wind and sand are strong.

[0003] In the existing transformer device, electrical components such as transformers are installed inside the box. In order to meet the heat dissipation performance, air inlets and outlets are generally provided on the box. Air flow can enter the box to blow air and dissipate heat for the operation of the electrical components. However, since it is used in Gobi, desert, wasteland and other areas, in order to effectively filter the wind and sand from the outside air, the existing transformer device is generally designed with filter structures such as filter screens, filter cotton, and baffles at the air inlet and outlet.

[0004] However, while the filter structure can filter out most dust, finer dust can still pass through the filter structure and enter the box. Although the filter cotton can effectively filter and block the entry of dust, after long-term use, a thick layer of dust will accumulate on the outer surface of the filter cotton, even blocking the air inlet and reducing heat dissipation efficiency. For other filter structures, small particles of dust may enter the box and accumulate on the surface of transformer components, which may cause arcing discharge and even burn out the transformer. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a wind-sand-resistant heat-dissipating transformer device that prevents dust from entering the space where electrical components are placed, maintains good heat dissipation, and is self-cleaning to extend the effective heat dissipation time.

[0006] According to an embodiment of the first aspect of the present invention, an anti-wind and sand heat dissipation transformer device includes: a box body, provided with a accommodating cavity for accommodating electrical components, the box body is also provided with a heat dissipation duct independent of the accommodating cavity, an air inlet connected to the head end of the heat dissipation duct, and an air outlet connected to the tail end of the heat dissipation duct; a heat exchange component, arranged in the box body, and at least part of the heat exchange component is located in the accommodating cavity and at least part of the heat exchange component is located in the heat dissipation duct; a first blower component, arranged in the box body and located in the heat dissipation duct, the first blower component having at least a first operating state and a second operating state, in the first operating state, the first blower component guides the airflow from the air inlet to the air outlet, and in the second operating state, the first blower component guides the airflow from the air outlet to the air inlet.

[0007] A wind-sand-resistant heat-dissipating transformer device according to an embodiment of the present invention has at least the following beneficial effects:

[0008] The anti-wind and sand heat dissipation transformer device of the present invention can be used in harsh environments. Electrical components can be placed in the accommodating cavity, which can be kept relatively sealed and not easily entered by dust, thereby providing the electrical components with a good operating environment. The heat generated by the operation of the electrical components is transferred to the heat exchange component through the air, and the first blowing component operates in the first operating state, so that the wind flows from the air inlet through the heat dissipation duct to the air outlet, thereby dissipating the heat for the heat exchange component, thereby indirectly dissipating the heat for the electrical components, and external dust may enter the heat dissipation duct from the air inlet and accumulate near the air inlet. After a period of use, the first blowing component can be switched to the second operating state, so that the wind flows from the air outlet through the heat dissipation duct to the air inlet, so that the dust accumulated near the air inlet is discharged. This design effectively prevents dust from entering the space where electrical components are placed, maintains a good heat dissipation effect, and self-cleans to extend the time of effective heat dissipation.

[0009] According to some embodiments of the present invention, the air inlet is located below the box relative to the air outlet.

[0010] According to some embodiments of the present invention, the housing is provided with particle filters at the air outlet and the air inlet.

[0011] According to some embodiments of the present invention, the first blowing assembly includes a first fan and a second fan both arranged in the heat dissipation duct. In the first operating state, the first fan is started and the second fan is stopped so that the airflow flows from the air inlet to the air outlet. In the second operating state, the first fan is stopped and the second fan is started so that the airflow flows from the air outlet to the air inlet.

[0012] According to some embodiments of the present invention, the box body is provided with a second air blowing assembly in the accommodating cavity, and the second air blowing assembly is used to guide the air flow from below the electrical component to above the electrical component.

[0013] According to some embodiments of the present invention, there are multiple electrical components, and the second blowing assembly includes multiple third fans; wherein the multiple electrical components include a low-voltage switchgear, a transformer and a high-voltage switchgear, and the low-voltage switchgear is provided with a low-pressure air cavity and a first air inlet and a first air outlet both connected to the low-pressure air cavity, the first air inlet is provided below the low-voltage switchgear, the first air outlet is provided above the low-voltage switchgear, a winding air duct is provided on the transformer, and the high-voltage switchgear is provided with a high-pressure air cavity and a second air inlet and a second air outlet both connected to the high-pressure air cavity. The second air inlet is arranged below the high-voltage switch cabinet, the second air outlet is arranged above the high-voltage switch cabinet, and the third fan is arranged on the low-voltage switch cabinet to guide the airflow from the first air inlet into the low-pressure air cavity and out of the first air outlet. The third fan is arranged on the high-voltage switch cabinet to guide the airflow from the second air inlet into the high-pressure air cavity and out of the second air outlet. The third fan is arranged below the transformer to guide the airflow from the bottom of the winding air duct to the top of the winding air duct.

[0014] According to some embodiments of the present invention, the heat exchange assembly includes a plurality of heat exchange fins, a portion of the heat exchange fins is located in the accommodating cavity and another portion of the heat exchange fins is located in the heat dissipation duct.

[0015] According to some embodiments of the present invention, a dust-repellent layer is provided on the surface of the heat exchange fins located in the heat dissipation duct.

[0016] According to some embodiments of the present invention, the anti-wind and sand heat dissipation transformer device also includes a current detection module and an alarm module for detecting the working current of the first blowing component. The current detection module is connected to the alarm module to trigger the alarm module to alarm according to the size of the working current.

[0017] According to some embodiments of the present invention, the anti-wind and sand heat dissipation transformer device also includes a current detection module and a control module for detecting the working current of the first blower assembly. The control module is connected to the current detection module and the first blower assembly respectively. The control module controls the first blower assembly to switch between the first operating state and the second operating state according to the size of the working current.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0020] Figure 1 A top view of the internal structure of one embodiment of the transformer device of the present invention;

[0021] Figure 2 A side view of one embodiment of a voltage transformer device according to the present invention;

[0022] Figure 3 is a front view of the first blast assembly;

[0023] Figure 4 is a wind flow diagram of the first blower assembly in the first operating state;

[0024] Figure 5 This is a wind flow diagram of the first blower assembly in the second operating state.

[0025] Reference numerals:

[0026] Casing 100; accommodating chamber 110; heat dissipation duct 120; air inlet 130; air outlet 140; heat exchange component 200; dust repelling layer 210; first air blowing component 300; first fan 310; second fan 320; particle filter 400; second air blowing component 500; electrical components 600. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] like Figure 1-5 As shown, according to an embodiment of the first aspect of the present invention, an anti-wind and sand heat dissipation transformer device includes a box body 100, a heat exchange component 200 and a first blast component 300. The box body 100 is provided with a receiving cavity 110 for accommodating an electrical component 600. The box body 100 is also provided with a heat dissipation duct 120 independent of the receiving cavity 110, an air inlet 130 connected to the head end of the heat dissipation duct 120, and an air outlet 140 connected to the tail end of the heat dissipation duct 120. The heat exchange component 200 is arranged in the box body 100, and at least Part of the heat exchange component 200 is located in the accommodating cavity 110 and at least part of the heat exchange component 200 is located in the heat dissipation duct 120. The first blowing component 300 is arranged in the box body 100 and is located in the heat dissipation duct 120. The first blowing component 300 has at least a first operating state and a second operating state. In the first operating state, the first blowing component 300 guides the airflow from the air inlet 130 to the air outlet 140. In the second operating state, the first blowing component 300 guides the airflow from the air outlet 140 to the air inlet 130.

[0032] The box body 100 may be rectangular or cylindrical, and may be made of alloy material, such as stainless steel. The heat dissipation duct 120 may be provided on one side of the accommodating chamber 110 or may be disposed around the accommodating chamber 110 .

[0033] The electrical components 600 in the accommodating cavity 110 may include a low-voltage switchgear, a high-voltage switchgear, a transformer, etc. A plurality of connecting busbars may be provided on the box body 100, and the connecting busbars are used to respectively connect the low-voltage switchgear and external devices, or to respectively connect the high-voltage switchgear and external devices.

[0034] The wind and sand resistant heat dissipation transformer device of the present invention can be used in harsh environments. The electrical components can be placed in the accommodating chamber 110. The accommodating chamber 110 can be kept relatively sealed and not easily infiltrated by dust, thereby providing the electrical components with a good operating environment. The heat generated by the operation of the electrical components is transferred to the heat exchange component 200 through the air, and the first blast component 300 operates in the first operating state, so that the air flow flows from the air inlet 130 through the heat dissipation duct 120 to the air outlet 140, thereby dissipating heat for the heat exchange component 200, thereby indirectly dissipating heat for the electrical components 600, and external dust may It will enter the heat dissipation duct 120 from the air inlet 130 and accumulate near the air inlet 130. After a period of use, the first blowing assembly 300 can be switched to the second operating state, so that the airflow flows from the air outlet 140 through the heat dissipation duct 120 to the air inlet 130, so that the dust accumulated near the air inlet 130 is discharged. At the same time, this process can also perform airflow heat exchange and will not bring a lag effect on the heat dissipation of the electrical components 600. This design effectively prevents dust from entering the space where the electrical components 600 are placed, maintains a good heat dissipation effect, and self-cleans to extend the time of effective heat dissipation.

[0035] In some embodiments of the present invention, the air inlet 130 is located below the box 100 relative to the air outlet 140 .

[0036] Since sand and gravel dust have a certain weight, the air inlet 130 is located below the housing 100 relative to the air outlet 140, so that sand and gravel dust generally accumulates more at the air inlet 130. Therefore, during the cleaning process, the first blower assembly 300 is in the second operating state, and the air flow can quickly and effectively discharge the sand and gravel dust from the air inlet 130. In addition, when the first blower assembly 300 is in the first operating state, the air flow is not likely to carry the heavy sand and gravel dust from the air inlet 130 to the air outlet 140.

[0037] And when the first blowing assembly 300 is in the first operating state, it mainly dissipates heat for the electrical components 600. Therefore, the airflow enters the heat dissipation duct 120 from the air inlet 130 below, so that the airflow slowly flows through the heat exchange assembly 200 and then flows out from the air outlet 140, thereby improving the heat exchange efficiency.

[0038] In some embodiments of the present invention, Figure 2 、 3 As shown, the box body 100 is provided with a particle filter 400 at the air outlet 140 and the air inlet 130. The particle filter 400 can be filter cotton, filter mesh or baffle, and the cover is provided at the air outlet 140 and the air inlet 130, thereby preventing most of the sand and dust from entering the heat dissipation duct 120, thereby maintaining good heat dissipation efficiency.

[0039] In some embodiments of the present invention, Figure 3、 4 As shown in Figure 5, the first blowing assembly 300 includes a first fan 310 and a second fan 320, both of which are arranged in the heat dissipation duct 120. In the first operating state, the first fan 310 is started and the second fan 320 is stopped so that the airflow flows from the air inlet 130 to the air outlet 140. In the second operating state, the first fan 310 is stopped and the second fan 320 is started so that the airflow flows from the air outlet 140 to the air inlet 130.

[0040] Alternatively, in some embodiments of the present invention, the first air blowing assembly 300 may include a fan device with forward and reverse rotation functions, where the fan device rotates forward to be in the first operating state, and rotates reversely to be in the second operating state.

[0041] In some embodiments of the present invention, the housing 100 is provided with a second air blowing assembly 500 in the accommodating cavity 110 , and the second air blowing assembly 500 is used to guide the airflow from below the electrical component 600 to above the electrical component 600 .

[0042] The second blowing assembly 500 can make the air in the accommodating cavity 110 flow continuously, and the wind flow can take away the heat on the electrical component 600, and then the wind flow flows from the bottom of the electrical component 600 to the top of the electrical component 600. The wind flow speed is relatively slow and can flow evenly through various positions on the electrical component 600. The wind flow then passes through the heat exchange assembly 200 to transfer the heat to the heat dissipation duct 120 through the heat exchange assembly 200.

[0043] In some embodiments of the present invention, there are multiple electrical components 600, and the second air blowing assembly 500 includes multiple third fans. Each third fan can independently blow air to dissipate heat from the corresponding electrical component 600. The heat rises to the top of the accommodating chamber 110, converges, and then passes through the heat exchange assembly 200 to the heat dissipation duct 120.

[0044] Specifically, there are multiple electrical components 600, and the second blower assembly 500 includes multiple third fans; wherein the multiple electrical components include a low-voltage switch cabinet, a transformer, and a high-voltage switch cabinet, the low-voltage switch cabinet is provided with a low-pressure air cavity and a first air inlet and a first air outlet both connected to the low-pressure air cavity, the first air inlet is provided below the low-voltage switch cabinet, the first air outlet is provided above the low-voltage switch cabinet, a winding air duct is provided on the transformer, and the high-voltage switch cabinet is provided with a high-pressure air cavity and a second air inlet both connected to the high-pressure air cavity The second air inlet is arranged below the high-voltage switchgear, the second air outlet is arranged above the high-voltage switchgear, and a third fan is arranged on the low-voltage switchgear to guide the airflow from the first air inlet into the low-pressure air cavity and out of the first air outlet, and a third fan is arranged on the high-voltage switchgear to guide the airflow from the second air inlet into the high-pressure air cavity and out of the second air outlet, and a third fan is arranged below the transformer to guide the airflow from the bottom of the winding air duct to the top of the winding air duct.

[0045] The air circulating in the accommodating chamber 110 is provided with circulation power by each third fan, which causes the hot air in the accommodating chamber 110 to flow upward and be drawn into the heat exchange component 200. After heat exchange in the heat exchange component 200, the cold air returns to the bottom of the accommodating chamber 110 and then enters the bottom of each electrical component 600 respectively.

[0046] The third fan of the low-voltage switchgear can be set at the first air outlet position to provide power for the air flow in the low-pressure air cavity, and draw the hot air above the low-pressure air cavity from the first air outlet into the top of the accommodating cavity 110, forming a negative pressure in the low-pressure air cavity. The first air inlet at the bottom of the low-pressure chamber draws in the cold air at the bottom of the accommodating cavity under the action of the negative pressure in the low-pressure chamber.

[0047] The third fan of the transformer provides circulation power for the air in the winding air duct, blowing the cold air at the bottom of the accommodating chamber 110 into the winding air duct. The hot air in the winding air duct flows from the top of the winding air duct into the top of the accommodating chamber 110 under the action of the wind pressure of the third fan.

[0048] The third fan of the high-voltage switchgear can be set at the second air outlet position to provide power for the air flow in the high-pressure air cavity, and draw the hot air above the high-pressure air cavity from the second air outlet into the top of the accommodating cavity 110, forming a negative pressure in the high-pressure air cavity. The second air inlet at the bottom of the high-pressure air cavity draws in the cold air at the bottom of the accommodating cavity 110 under the action of the negative pressure in the high-pressure air cavity.

[0049] In some embodiments of the present invention, the heat exchange assembly 200 is made of a high thermal conductivity material and may include multiple heat exchange fins, a portion of which is located in the accommodating cavity 110 and another portion of which is located in the heat dissipation duct 120.

[0050] Specifically, the heat exchange component 200 may also be a heat exchange conduit.

[0051] The heat exchange fins can be arranged side by side, and the airflow passes through the gaps between the multiple heat exchange fins, so that the part of the heat exchange fins located in the accommodating cavity 110 transfers heat to the part of the heat exchange fins located in the heat dissipation duct 120.

[0052] In some embodiments of the present invention, a dust-repellent layer 210 is provided on the surface of the heat exchange fins located in the heat dissipation duct 120 .

[0053] There is still a small amount of dust in the heat dissipation duct 120. The dust-repelling layer 210 can prevent the dust from being deposited on the surface of the heat exchange fins and affecting the heat exchange performance. The dust-repelling layer 210 can be dust-proof paint such as silicone acrylic paint, epoxy resin, etc.

[0054] In some embodiments of the present invention, the anti-wind and sand heat dissipation transformer device also includes a current detection module and an alarm module for detecting the working current of the first blowing assembly 300. The current detection module is connected to the alarm module to trigger an alarm according to the size of the working current.

[0055] When the first blower assembly 300 is seriously blocked, the working current will increase significantly, indicating that dust has seriously blocked the heat dissipation duct 120. When the current detection module detects that the working current has risen to a preset current threshold, it can trigger the alarm module to alarm.

[0056] Specifically, the alarm module may be a buzzer, an indicator light, or a mobile communication chip, and the mobile communication chip may be capable of wirelessly transmitting an alarm signal.

[0057] In some embodiments of the present invention, the anti-wind and sand heat dissipation transformer device also includes a current detection module and a control module for detecting the working current of the first blowing assembly 300. The control module is connected to the current detection module and the first blowing assembly 300 respectively. The control module controls the first blowing assembly 300 to switch between the first operating state and the second operating state according to the size of the working current.

[0058] Among them, the control module can be in the CPU or MCU and its affiliated circuits. Specifically, the current detection module can detect the working current of the first fan 310. When the working current of the first fan 310 is too large, it proves that it is necessary to enter the cleaning mode. The control module can control the first blowing assembly 300 to switch from the first operating state to the second operating state to clean the dust in time. After cleaning, when the working current of the first fan 310 is still too large, manual maintenance is required, and an alarm can be given through the alarm module.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A wind-sand-resistant heat-dissipating transformer device, characterized in that: include: The box body is provided with a receiving cavity for receiving electrical components, and the box body is further provided with a heat dissipation duct independent of the receiving cavity, an air inlet communicating with the head end of the heat dissipation duct, and an air outlet communicating with the tail end of the heat dissipation duct; A heat exchange component is disposed in the box, and at least a portion of the heat exchange component is located in the accommodating cavity and at least a portion of the heat exchange component is located in the heat dissipation duct; a first air blowing assembly disposed in the housing and located in the heat dissipation duct, the first air blowing assembly having at least a first operating state and a second operating state, wherein in the first operating state, the first air blowing assembly guides airflow from the air inlet to the air outlet, and in the second operating state, the first air blowing assembly guides airflow from the air outlet to the air inlet; The first air blowing assembly includes a first fan and a second fan both disposed in the heat dissipation duct, wherein in the first operating state, the first fan is started and the second fan is stopped so that air flows from the air inlet to the air outlet, and in the second operating state, the first fan is stopped and the second fan is started so that air flows from the air outlet to the air inlet; The box body is provided with a second air blowing assembly in the accommodating cavity, and the second air blowing assembly is used to guide the air flow from below the electrical component to above the electrical component; There are multiple electrical components, and the second blower assembly includes multiple third fans; wherein the multiple electrical components include a low-voltage switchgear, a transformer and a high-voltage switchgear, the low-voltage switchgear is provided with a low-pressure air cavity and a first air inlet and a first air outlet both connected to the low-pressure air cavity, the first air inlet is provided below the low-voltage switchgear, the first air outlet is provided above the low-voltage switchgear, a winding air duct is provided on the transformer, the high-voltage switchgear is provided with a high-pressure air cavity and a second air inlet and a second air outlet both connected to the high-pressure air cavity, the second The air inlet is arranged below the high-voltage switchgear, the second air outlet is arranged above the high-voltage switchgear, and the third fan is arranged on the low-voltage switchgear to guide the airflow from the first air inlet into the low-pressure air cavity and out of the first air outlet. The third fan is arranged on the high-voltage switchgear to guide the airflow from the second air inlet into the high-pressure air cavity and out of the second air outlet. The third fan is arranged below the transformer to guide the airflow from the bottom of the winding air duct to the top of the winding air duct.

2. The anti-sandstorm heat dissipation transformer device according to claim 1, characterized in that: The air inlet is located below the box relative to the air outlet.

3. The anti-wind and sand heat dissipation transformer device according to claim 1, characterized in that: The box body is provided with particle filters at the air outlet and the air inlet.

4. The anti-wind and sand heat dissipation transformer device according to claim 1, characterized in that: The heat exchange assembly includes a plurality of heat exchange fins, a portion of the heat exchange fins is located in the accommodating cavity and another portion of the heat exchange fins is located in the heat dissipation duct.

5. The anti-wind and sand heat dissipation transformer device according to claim 4, characterized in that: The surfaces of the heat exchange fins located in the heat dissipation duct are provided with a dust-repellent layer.

6. The wind-sand-resistant heat-dissipating transformer device according to claim 1, characterized in that: It also includes a current detection module and an alarm module for detecting the working current of the first blower assembly. The current detection module is connected to the alarm module to trigger the alarm module to alarm according to the size of the working current.

7. The wind-sand-resistant heat-dissipating transformer device according to claim 1, characterized in that: It also includes a current detection module and a control module for detecting the working current of the first blower assembly. The control module is connected to the current detection module and the first blower assembly respectively. The control module controls the first blower assembly to switch between the first operating state and the second operating state according to the size of the working current.

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