CN219811386U - Wind-sand-resistant heat dissipation transformer - Google Patents

Abstract

The utility model discloses a wind-sand-resistant heat dissipation pressure transformation device, which comprises a box body, a heat exchange component and a first air blast component, wherein the box body is provided with a containing cavity for containing electric components, the box body is also provided with a heat dissipation air duct which is mutually independent from the containing cavity, an air inlet which is communicated with the head end of the heat dissipation air duct and an air outlet which is communicated with the tail end of the heat dissipation air duct, the heat exchange component is arranged in the box body, at least part of the heat exchange component is arranged in the containing cavity and at least part of the heat exchange component is arranged in the heat dissipation air duct, the first air blast component is arranged in the box body and is arranged in the heat dissipation air duct, the first air blast component at least has a first operation state and a second operation state, in the first air blast component guides air flow to flow from the air inlet to the air outlet, in the second operation state, the first air blast component guides dust to flow from the air outlet to the air inlet, the self-cleaning effect is effectively prevented from entering the containing cavity, and good heat dissipation effect is kept, and the time of effective heat dissipation is prolonged.

Description

Wind-sand-resistant heat dissipation transformer

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a wind-sand-resistant heat dissipation transformer device.

Background

At present, new energy development is gradually popularized in areas such as gobi, deserts, barren lands and the like, and the areas have severe environments and large wind and sand.

The existing transformer device is internally provided with electrical components such as a transformer, in order to meet the heat dissipation performance, the box is generally provided with an air inlet and an air outlet, and air flow can enter the box to be used for blowing and dissipating heat for the operation of the electrical components, and in order to effectively filter the wind and sand of the outside air, the existing transformer device is generally provided with filter structures such as a filter screen, filter cotton and a baffle at the air inlet and the air outlet.

However, although the filter structure is capable of filtering a substantial portion of the dust, the finer dust may still pass through the filter structure and into the housing. Although the filter cotton can play a better filtering effect and prevent sand and dust from entering, the filter cotton can accumulate thick and thick dust on the outer surface of the filter cotton after long-time use, even the air inlet is blocked, so that the heat dissipation efficiency is reduced, and for other filtering structures, small-particle dust can enter the box body, the dust can be accumulated on the surface of the transformer part, arc discharge is likely to occur, and even phenomena such as burning of the transformer occur.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the wind-sand-resistant heat-dissipation transformer device which prevents dust from entering a space for placing electric components, maintains a good heat-dissipation effect, and self-cleans to prolong the effective heat-dissipation time.

According to an embodiment of the first aspect of the utility model, a wind-sand-resistant heat dissipation transformer device comprises: the box body is provided with a containing cavity for containing the electrical components, and is also provided with a heat dissipation air duct independent of the containing cavity, an air inlet communicated with the head end of the heat dissipation air duct and an air outlet communicated with the tail end of the heat dissipation air duct; the heat exchange assembly is arranged in the box body, at least part of the heat exchange assembly is positioned in the accommodating cavity, and at least part of the heat exchange assembly is positioned in the heat dissipation air duct; the first air blast assembly is arranged in the box body and positioned in the heat dissipation air duct, and at least has a first operation state and a second operation state, wherein in the first operation state, the first air blast assembly guides air flow to flow from the air inlet to the air outlet, and in the second operation state, the first air blast assembly guides air flow to flow from the air outlet to the air inlet.

The wind-sand-resistant heat dissipation transformer device provided by the embodiment of the utility model has at least the following beneficial effects:

the wind-sand-resistant heat dissipation transformer device can be applied to a severe environment, an electric appliance part can be placed in a containing cavity, the containing cavity can be kept relatively sealed and is not easy to enter by dust, so that the electric appliance part has a good operation environment, heat generated by operation of the electric appliance part is transmitted to a heat exchange assembly through air, the first air blast assembly operates in a first operation state, air current flows from an air inlet to an air outlet through a heat dissipation air duct so as to dissipate heat of the heat exchange assembly, thereby indirectly dissipating heat of the electric part, external dust possibly enters the heat dissipation air duct from the air inlet and is accumulated near the air inlet, after the wind-sand-resistant heat dissipation transformer device is used for a period of time, the first air blast assembly can be switched to operate in a second operation state so that the air current flows from the air outlet to the air inlet through the heat dissipation air duct, so that dust accumulated near the air inlet is discharged.

According to some embodiments of the utility model, the air inlet is located below the tank relative to the air outlet.

According to some embodiments of the utility model, the housing is provided with a particle filter at the air outlet and the air inlet.

According to some embodiments of the utility model, the first blower assembly includes a first blower and a second blower both disposed in the heat dissipation duct, in the first operating state the first blower is activated and the second blower is deactivated to cause airflow from the air intake to the air outlet, and in the second operating state the first blower is deactivated and the second blower is activated to cause airflow from the air outlet to the air intake.

According to some embodiments of the utility model, the housing is provided with a second blower assembly in the accommodation chamber for guiding a flow of air from below the electrical component to above the electrical component.

According to some embodiments of the utility model, the electrical components are plural, and the second blower assembly includes a plurality of third fans; the electric component comprises a low-voltage switch cabinet, a transformer and a high-voltage switch cabinet, wherein a low-voltage air cavity, a first air inlet and a first air outlet are formed in the low-voltage switch cabinet, the first air inlet and the first air outlet are communicated with the low-voltage air cavity, the first air inlet is formed in the lower portion of the low-voltage switch cabinet, the first air outlet is formed in the upper portion of the low-voltage switch cabinet, a winding air channel is formed in the transformer, the high-voltage switch cabinet is provided with a high-voltage air cavity, a second air inlet and a second air outlet are communicated with the high-voltage air cavity, the second air inlet is formed in the lower portion of the high-voltage switch cabinet, the second air outlet is formed in the upper portion of the high-voltage switch cabinet, one of the second air inlet is formed in the lower portion of the high-voltage switch cabinet, the third fan is arranged on the low-voltage switch cabinet, the third fan is capable of guiding air flow to enter the low-voltage air cavity and flows out of the first air outlet, the third fan is arranged on the high-voltage switch cabinet, the winding air channel is capable of guiding air flow to the second air cavity and the winding air channel is capable of flowing from the second air inlet to the upper portion of the winding air channel.

According to some embodiments of the utility model, the heat exchange assembly comprises a plurality of heat exchange fins, a portion of the heat exchange fins being located in the receiving cavity and another portion of the heat exchange fins being located in the heat dissipation air duct.

According to some embodiments of the utility model, the surface of the heat exchange fin in the heat dissipation air duct is provided with a dust-repellent layer.

According to some embodiments of the present utility model, the wind and sand resistant heat dissipation transformer device further includes a current detection module for detecting the working current of the first blower assembly, and an alarm module connected to the current detection module for triggering the alarm module to alarm according to the working current.

According to some embodiments of the present utility model, the wind-sand-resistant heat dissipation and transformation device further includes a current detection module for detecting an operating current of the first air blast assembly, and a control module connected to the current detection module and the first air blast assembly, respectively, wherein the control module controls the first air blast assembly to switch between a first operating state and a second operating state according to the magnitude of the operating current.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a top view of the internal structure of one embodiment of a transformer apparatus according to the present utility model;

FIG. 2 is a side view of one embodiment of a transformer apparatus of the present utility model;

FIG. 3 is a front view of the first blower assembly;

FIG. 4 is a flow chart of the air flow in a first operational state of the first air blast assembly;

FIG. 5 is a flow chart of the air flow in a second operational state of the first air blast assembly.

Reference numerals:

a case 100; a receiving chamber 110; a heat dissipation air duct 120; an air inlet 130; an air outlet 140; a heat exchange assembly 200; a dust-repellent layer 210; a first blower assembly 300; a first fan 310; a second fan 320; a particle filter 400; a second blower assembly 500; an electrical component 600.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a wind and sand resistant heat dissipation transformer according to an embodiment of the present utility model includes a case 100, a heat exchange assembly 200, and a first blower assembly 300, wherein the case 100 is provided with a housing cavity 110 for housing an electrical component 600, the case 100 is further provided with a heat dissipation duct 120 independent from the housing cavity 110, an air inlet 130 communicating with a head end of the heat dissipation duct 120, and an air outlet 140 communicating with a tail end of the heat dissipation duct 120, the heat exchange assembly 200 is disposed in the case 100, and at least part of the heat exchange assembly 200 is disposed in the housing cavity 110 and at least part of the heat exchange assembly 200 is disposed in the heat dissipation duct 120, the first blower assembly 300 is disposed in the case 100 and is disposed in the heat dissipation duct 120, the first blower assembly 300 has at least a first operation state in which the first blower assembly 300 guides a flow from the air inlet 130 to the air outlet 140, and a second operation state in which the first blower assembly 300 guides a flow from the air outlet 140 to the air inlet 130.

The case 100 may be rectangular, cylindrical, etc., and the case 100 may be made of an alloy material, such as stainless steel, etc. The heat dissipation air duct 120 may be disposed on one side of the accommodating cavity 110, or may be disposed around the accommodating cavity 110.

The electrical components 600 in the accommodating cavity 110 may include a low-voltage switch cabinet, a high-voltage switch cabinet, a transformer, etc., and the case 100 may be provided with a plurality of connection bus bars for respectively connecting the low-voltage switch cabinet and the external device or for respectively connecting the high-voltage switch cabinet and the external device.

The wind-sand-resistant heat dissipation transformer device can be applied to a severe environment, an electrical component can be placed in the accommodating cavity 110, the accommodating cavity 110 can be kept relatively sealed and is not easy to enter dust, so that the electrical component has a good operation environment, heat generated by operation of the electrical component is transferred to the heat exchange component 200 through air, the first air blast component 300 operates in a first operation state, wind flow flows from the air inlet 130 to the air outlet 140 through the heat dissipation air channel 120, so that the heat exchange component 200 is dissipated, and therefore, the electrical component 600 is indirectly dissipated, and external dust possibly enters the heat dissipation air channel 120 from the air inlet 130 and is accumulated near the air inlet 130.

In some embodiments of the present utility model, the air inlet 130 is located below the case 100 relative to the air outlet 140.

Because the sand dust has a certain weight, the air inlet 130 is located below the box 100 relative to the air outlet 140, so that the sand dust is generally accumulated at the air inlet 130 more, the first air blast assembly 300 is in the second operation state in the cleaning process, and the air current can rapidly and effectively discharge the sand dust from the air inlet 130. And the first blower assembly 300 is in the first operation state, the wind flow is not easy to bring the heavy sand dust from the air inlet 130 to the air outlet 140.

In the first operation state of the first air blast assembly 300, the electric component 600 mainly dissipates heat, so that the air flow enters the heat dissipation air duct 120 from the air inlet 130 below, and flows through the heat exchange assembly 200 slowly and then flows out from the air outlet 140, thereby improving the heat exchange efficiency.

In some embodiments of the present utility model, as shown in fig. 2 and 3, the case 100 is provided with a particle filter 400 at the air outlet 140 and the air inlet 130, and the particle filter 400 may be a filter cotton, a filter screen or a baffle plate, and is covered at the air outlet 140 and the air inlet 130, so that most of sand dust can be blocked from entering the heat dissipation air duct 120, thereby maintaining good heat dissipation efficiency.

In some embodiments of the present utility model, as shown in fig. 3, 4, 5, the first blower assembly 300 includes a first blower 310 and a second blower 320 both disposed in the heat dissipation duct 120, in a first operating state, the first blower 310 is activated and the second blower 320 is deactivated to cause airflow from the air intake 130 to the air outlet 140, and in a second operating state, the first blower 310 is deactivated and the second blower 320 is activated to cause airflow from the air outlet 140 to the air intake 130.

Alternatively, in some embodiments of the present utility model, the first blower assembly 300 may include a blower device having a forward and reverse rotation function, the blower device being rotated forward to be in the first operating state, and the blower device being rotated backward to be in the second operating state.

In some embodiments of the present utility model, the case 100 is provided with a second blowing assembly 500 in the receiving chamber 110, and the second blowing assembly 500 is used to guide the flow of the wind from the lower side of the electrical component 600 to the upper side of the electrical component 600.

The second blower assembly 500 can make the air in the accommodating cavity 110 continuously flow, the air flow can take away the heat on the electrical component 600, and then the air flow flows from the lower side of the electrical component 600 to the upper side of the electrical component 600, the air flow speed is relatively slow, the air flow can uniformly flow through various positions on the electrical component 600, and the air flow passes through the heat exchange assembly 200 to transfer the heat into the heat dissipation air duct 120 through the heat exchange assembly 200.

In some embodiments of the utility model, the electrical components 600 are plural and the second blower assembly 500 includes a plurality of third fans. Each third fan can independently blow and dissipate heat for the corresponding electrical component 600, the heat rises to the top of the accommodating cavity 110, and after converging, the heat is transferred to the heat dissipation air duct 120 through the heat exchange assembly 200.

Specifically, the electrical components 600 are plural, and the second blower assembly 500 includes a plurality of third fans; the low-voltage switch cabinet is internally provided with a low-voltage air cavity, a first air inlet and a first air outlet which are communicated with the low-voltage air cavity, the first air inlet is arranged below the low-voltage switch cabinet, the first air outlet is arranged above the low-voltage switch cabinet, the transformer is provided with a winding air channel, the high-voltage switch cabinet is provided with a high-voltage air cavity, a second air inlet and a second air outlet which are communicated with the high-voltage 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, a third fan is arranged on the low-voltage switch cabinet to guide air flow to enter the low-voltage air cavity from the first air inlet and flow out from the first air outlet, and a third fan is arranged on the high-voltage switch cabinet to guide air flow to enter the high-voltage air cavity from the second air inlet and flow out from the second air outlet.

The air circulated in the accommodating cavity 110 provides circulating power through each third fan, the hot air in the accommodating cavity 110 flows upwards and is pumped into the heat exchange assembly 200, and after heat exchange in the heat exchange assembly 200, the cold air returns to the bottom of the accommodating cavity 110 and enters the lower part of each electric component 600 respectively.

The third fan of the low-voltage switch cabinet can be arranged at the position of the first air outlet to provide power for the air flow of the low-voltage air cavity, hot air above the low-voltage air cavity is pumped out from the first air outlet to enter the top of the accommodating cavity 110, negative pressure is formed in the low-voltage air cavity, and the first air inlet at the bottom of the low-voltage chamber sucks cold air at the bottom of the accommodating cavity under the action of the negative pressure in the low-voltage chamber.

The third fan of the transformer provides circulating power for the air in the winding air channel, cold air at the bottom of the accommodating cavity 110 is blown into the winding air channel, and hot air in the winding air channel flows into the top of the accommodating cavity 110 from the upper part of the winding air channel under the action of the wind pressure of the third fan.

The third fan of the high-voltage switch cabinet can be arranged at the position of the second air outlet to provide power for the air flow of the high-voltage air cavity, hot air above the high-voltage air cavity is pumped out from the second air outlet to enter the top of the accommodating cavity 110, negative pressure is formed in the high-voltage air cavity, and the second air inlet at the bottom of the high-voltage air cavity sucks cold air at the bottom of the accommodating cavity 110 under the action of the negative pressure in the high-voltage air cavity.

In some embodiments of the present utility model, the heat exchange assembly 200 is made of a high thermal conductivity material, and may include a plurality of heat exchange fins, one portion of which is located in the receiving cavity 110 and another portion of which is located in the heat dissipation air channel 120.

In particular, the heat exchange assembly 200 may also be a heat exchange conduit.

The heat exchange fins may be arranged side by side such that the air flow passes through the gaps between the plurality of heat exchange fins so that the portions of the heat exchange fins located in the receiving chamber 110 transfer heat to the portions of the heat exchange fins located in the heat dissipation air duct 120.

In some embodiments of the present utility model, the surfaces of the heat exchange fins located in the heat dissipation air duct 120 are provided with a dust-repellent layer 210.

A small amount of dust still exists in the heat dissipation air duct 120, the dust-repellent layer 210 can prevent dust from being deposited on the surfaces of the heat exchange fins to affect the heat exchange performance, and the dust-repellent layer 210 can be dustproof paint such as silicon acrylic paint, epoxy resin and the like.

In some embodiments of the present utility model, as shown in fig. 5, the wind-sand-resistant heat dissipation transformer device further includes a current detection module for detecting the working current of the first blower assembly 300 and an alarm module, where the current detection module is connected to the alarm module to trigger the alarm module to alarm according to the magnitude of the working current.

When the first blower assembly 300 is severely blocked, the working current will be greatly increased, which proves that the dust has seriously blocked the heat dissipation air duct 120, and the current detection module can trigger the alarm module to alarm when detecting that the working current rises to the preset current threshold.

Specifically, the alarm module may be a buzzer, an indicator light or a mobile communication chip, and the mobile communication chip may wirelessly transmit an alarm signal.

In some embodiments of the present utility model, the wind-sand-resistant heat dissipation transformer device further includes a current detection module for detecting the working current of the first air blast assembly 300 and a control module, wherein the control module is respectively connected with the current detection module and the first air blast assembly 300, and the control module controls the first air blast assembly 300 to switch between the first operation state and the second operation state according to the working current.

The control module may be in the CPU or the MCU and the accessory circuit thereof, specifically, the current detection module may detect the working current of the first fan 310, when the working current of the first fan 310 is too large, it proves that the cleaning mode needs to be entered, the control module may control the first air blast assembly 300 to switch from the first operation state to the second operation state, and timely clean dust, and after cleaning, the working current of the first fan 310 is still too large, then the maintenance needs to be manually participated, and at this time, an alarm may be given by the alarm module.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a wind sand resistant heat dissipation transformer, its characterized in that includes:

the box body is provided with a containing cavity for containing the electrical components, and is also provided with a heat dissipation air duct independent of the containing cavity, an air inlet communicated with the head end of the heat dissipation air duct and an air outlet communicated with the tail end of the heat dissipation air duct;

the heat exchange assembly is arranged in the box body, at least part of the heat exchange assembly is positioned in the accommodating cavity, and at least part of the heat exchange assembly is positioned in the heat dissipation air duct;

the first air blast assembly is arranged in the box body and positioned in the heat dissipation air duct, and at least has a first operation state and a second operation state, wherein in the first operation state, the first air blast assembly guides air flow to flow from the air inlet to the air outlet, and in the second operation state, the first air blast assembly guides air flow to flow from the air outlet to the air inlet.

2. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the air inlet is positioned below the box body relative to the air outlet.

3. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the box is provided with particle filter elements at the air outlet and the air inlet.

4. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the first air blast assembly comprises a first fan and a second fan which are both arranged in the heat dissipation air duct, in the first running 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 running state, the first fan is stopped and the second fan is started so that air flows from the air outlet to the air inlet.

5. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the box is provided with the second blast assembly in the holding chamber, the second blast assembly is used for guiding the wind flow to flow from the below of electrical component to the top of electrical component.

6. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 5, wherein: a plurality of electrical components, the second blower assembly including a plurality of third fans; the electric component comprises a low-voltage switch cabinet, a transformer and a high-voltage switch cabinet, wherein a low-voltage air cavity, a first air inlet and a first air outlet are formed in the low-voltage switch cabinet, the first air inlet and the first air outlet are communicated with the low-voltage air cavity, the first air inlet is formed in the lower portion of the low-voltage switch cabinet, the first air outlet is formed in the upper portion of the low-voltage switch cabinet, a winding air channel is formed in the transformer, the high-voltage switch cabinet is provided with a high-voltage air cavity, a second air inlet and a second air outlet are communicated with the high-voltage air cavity, the second air inlet is formed in the lower portion of the high-voltage switch cabinet, the second air outlet is formed in the upper portion of the high-voltage switch cabinet, one of the second air inlet is formed in the lower portion of the high-voltage switch cabinet, the third fan is arranged on the low-voltage switch cabinet, the third fan is capable of guiding air flow to enter the low-voltage air cavity and flows out of the first air outlet, the third fan is arranged on the high-voltage switch cabinet, the winding air channel is capable of guiding air flow to the second air cavity and the winding air channel is capable of flowing from the second air inlet to the upper portion of the winding air channel.

7. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the heat exchange assembly comprises a plurality of heat exchange fins, one part of the heat exchange fins are located in the accommodating cavity, and the other part of the heat exchange fins are located in the heat dissipation air duct.

8. The wind-sand resistant heat dissipation and transformation device as claimed in claim 7, wherein: and a dust-dispersing layer is arranged on the surface of the heat exchange fin in the heat dissipation air duct.

9. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the air blower is characterized by further comprising a current detection module and an alarm module, wherein the current detection module is used for detecting the working current of the first air blowing component, and the current detection module is connected with the alarm module to trigger the alarm module to alarm according to the working current.

10. The wind-sand-resistant heat dissipation and transformation device as claimed in claim 1, wherein: the air blast system comprises a first air blast component, a second air blast component, a current detection module, a control module and a control module, wherein the current detection module is used for detecting working current of the first air blast component, the control module is respectively connected with the current detection module and the first air blast component, and the control module controls the first air blast component to switch between a first running state and a second running state according to the working current.