CN105658033A - Device with heat exchange - Google Patents

Abstract

The embodiment of the invention provides a device with heat exchange. Through the adoption of the device, the overall height of the device and the overall height of the device needed to be increased when the heat consumption of the electronic equipment is increased are reduced. The device comprises a cabinet in which the electronic equipment, an inner circulation fan and a first heat exchanger are arranged; the inner circulation fan is arranged above the electronic equipment, the first heat exchanger is arranged on a door at the side wall of the cabinet; a wind guiding structural component is arranged between the inner circulation fan and the first heat exchanger, the inner circulation fan enables the air in the cabinet to flow through the first heat exchanger through the wind guiding structural component; and the external top of the cabinet is provided with a second heat exchanger and an outer circulation fan, the first heat exchanger is connected with the second heat exchanger through a conduit and contains the communicated heat transfer working medium, the conduit enables the heat transfer working medium to circularly flow between the first heat exchanger and the second heat exchanger to realize the heat exchange.

Description

device with heat exchange

technical field

Embodiments of the present invention relate to the field of communications, and more specifically, to devices with heat exchange in the field of communications.

Background technique

The heat generated by electronic equipment during operation causes the internal temperature of the electronic equipment to rise rapidly. If the heat is not dissipated in time, the electronic equipment will continue to heat up. When the temperature exceeds the normal operating temperature range of the electronic components in the electronic equipment, The performance of the electronic equipment drops significantly, which greatly affects the reliability of the electronic equipment, so the heat dissipation problem of the electronic equipment has been paid more and more attention. In order to prevent the communication electronic system from being affected by adverse environmental factors such as dust, corrosive gas, and mold in the environment, and to ensure the reliable and stable operation of the electronic system, the electronic devices and equipment in the electronic system are often placed in a closed cabinet, and the cooling capacity of the cabinet It is determined by factors such as heat dissipation area and air volume, and is restricted by the volume of the cabinet. With the continuous improvement of the business capabilities of the information technology industry (Information Technology, referred to as "IT") and the communication technology industry (Communication Technology, referred to as "CT"), outdoor airtight cabinets need stronger heat dissipation capabilities.

In order to achieve stronger heat dissipation capability, a larger temperature control unit is required. In the prior art, the temperature control unit is generally arranged on the top of the cabinet as a whole, and the heat dissipation capability is improved by increasing the height of the temperature control unit. However, when the internal electronic equipment consumes a lot of heat, this method requires a large increase in the height of the temperature control unit, resulting in a large increase in the overall volume of the cabinet, which affects the compactness of the cabinet (that is, the heat dissipation capacity per unit volume of the cabinet).

Contents of the invention

In view of this, an embodiment of the present invention provides a device with heat exchange, which can reduce the overall height of the device and the height of the device that needs to be increased when the heat consumption of electronic equipment increases.

In the first aspect, a device with heat exchange is provided, the device includes a cabinet 200, the cabinet 200 is provided with electronic equipment 201, an internal circulation fan 202 and a first heat exchanger 203, wherein the internal circulation fan 202 is set Above the electronic equipment 201, the first heat exchanger 203 is arranged on the door of the side wall of the cabinet 200; an air guide structure 204 is arranged between the internal circulation fan 202 and the first heat exchanger 203 , the internal circulation fan 202 makes the air in the cabinet 200 flow through the first heat exchanger 203 through the air guide structure 204; the outer top of the cabinet 200 is provided with a second heat exchanger 205 and an external circulation fan 206, wherein , the first heat exchanger 203 is connected to the second heat exchanger 205 through a conduit 207 and contains a communicating heat transfer medium, and the conduit 207 makes the heat transfer medium flow between the first heat exchanger 203 and the second heat exchanger Circulating flow among the heat exchangers 205 realizes heat exchange.

In a first possible implementation manner of the first aspect, a through hole is disposed on the top of the cabinet 200, and the conduit 207 connects the first heat exchanger 203 and the second heat exchanger 205 through the through hole.

With reference to the above possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first heat exchanger 203 is arranged on the door of the side wall with the largest distance from the electronic device 201 .

In combination with the above possible implementation of the first aspect, in a third possible implementation of the first aspect, the first heat exchanger 203 is used to convert the passing hot air into cold air, and the first heat exchanger 203 The device 203 includes an evaporator.

In combination with the above possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the second heat exchanger 205 is used to convert the passing cold air into hot air, and the second heat exchanger 205 The vessel 205 includes a condenser.

In combination with the above-mentioned possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, a liquid cooling pump or an air conditioning compressor 208 is further provided on the outer top of the cabinet 200, and the liquid cooling pump or air conditioning compressor 208 208 for refrigeration.

In combination with the above possible implementation of the first aspect, in a sixth possible implementation of the first aspect, the first heat exchanger 203 or the second heat exchanger 205 includes fins, and the fins are plate fins type, tube-fin type or shroud type.

With reference to the above possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the heat transfer working medium is ammonia, acetone or tetrafluoroethane R134A.

The device with heat exchange provided by the embodiment of the present invention can reduce the overall height of the device by distributing the temperature control units at different positions of the cabinet, making full use of the internal space of the cabinet that is not effectively used in the prior art, thereby reducing the At the same time, it can reduce the overall height of the device when the heat consumption of electronic equipment increases, so as to meet the ever-evolving heat dissipation requirements of the cabinet.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required in the embodiments of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is the working principle diagram of the device with heat exchange in the prior art;

Fig. 2 is the working principle diagram of the device with heat exchange provided by the embodiment of the present invention;

Fig. 3 is a working principle diagram of another device with heat exchange provided by the embodiment of the present invention.

Reference signs:

200-cabinet

201 - Electronic equipment

202-Internal circulation fan

203-First heat exchanger

204-wind guide structure

205-Second heat exchanger

206-External circulation fan

207-catheter

detailed description

The various embodiments are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements herein. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that the described embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

In the prior art, a device with heat exchange includes a cabinet and a heat exchanger, the heat exchanger is arranged on the top of the cabinet, and the interior of the cabinet only includes electronic equipment. As shown in Figure 1, the device includes a cabinet 100, electronic equipment 101 installed in the cabinet 100, the device also includes a cold air space and a hot air space installed on the top of the cabinet 100, the cold air space communicates with the outside world , the hot air space communicates with the cabinet 100, the cold air space is provided with a condenser 102 and an external circulation fan 104, the hot air space is provided with an evaporator 103 and an internal circulation fan 105, and the condenser 102 and the evaporator A communicating heat transfer medium is provided between the devices 103 .

When the electronic device 101 is working, the hot air generated by the electronic device 101 flows into the hot air space driven by the internal circulation fan 105 , and at the same time, the cold air outside the device flows into the cold air space driven by the external circulation fan 104 . In this way, when the hot air in the hot air space passes through the evaporator 103, the heat transfer medium in the evaporator 103 absorbs most of the heat brought by the hot air, and the hot air that has absorbed heat passes through the air outlet of the hot air space Discharged into the cabinet 100 (as shown by the arrow N in the figure), part of the heat transfer working medium in the evaporator 103 gasifies and expands rapidly to increase the pressure, pushing the heat transfer working medium to flow to the condenser 102; in the cold air space When the cold air passes through the condenser 102, the heat transfer medium in the condenser 102 encounters the cold air to release heat and cool down, the bubbles shrink, the gas condenses into liquid, the pressure drops, the released heat and a very small part of the cold air are released by the cold air The air outlet of the space is discharged to the external environment (shown by arrow W in the figure).

It can be seen from the above that the temperature control unit, that is, the above-mentioned heat exchanger, is arranged on the top of the cabinet as a whole. When the heat consumption of the electronic equipment 101 is very large, the height of the temperature control unit has to be greatly increased to meet the heat dissipation capacity of the cabinet 100, which will cause the overall volume of the device to increase a lot and affect the compactness of the cabinet (that is, the size of the cabinet). cooling capacity per unit volume).

The device with heat exchange provided by the embodiment of the present invention will be described in detail below with reference to FIG. 2 to FIG. 3 .

Fig. 2 is a working principle diagram of the device with heat exchange provided by the embodiment of the present invention. As shown in Figure 2, the device includes a cabinet 200, the cabinet 200 is provided with electronic equipment 201, an internal circulation fan 202 and a first heat exchanger 203, wherein the internal circulation fan 202 is arranged above the electronic equipment 201, The first heat exchanger 203 is arranged on the door of the side wall of the cabinet 200; an air guide structure 204 is arranged between the internal circulation fan 202 and the first heat exchanger 203, and the internal circulation fan 202 makes the The air in the cabinet 200 flows through the first heat exchanger 203 through the air guiding structure 204;

The outer top of the cabinet 200 is provided with a second heat exchanger 205 and an external circulation fan 206, wherein the first heat exchanger 203 and the second heat exchanger 205 are connected through a conduit 207 and provided with a communicating heat transfer medium, The conduit 207 makes the heat transfer fluid circulate between the first heat exchanger 203 and the second heat exchanger 205 to realize heat exchange.

Specifically, in the embodiment of the present invention, when the electronic device 201 is working, the hot air generated by the electronic device 201 flows through the first heat exchanger 203 through the air guide structure 204 driven by the internal circulation fan 202, and at the same time , the cold air outside the device flows through the second heat exchanger 205 driven by the external circulation fan 206 . In this way, when the hot air passes through the first heat exchanger 203, the heat transfer medium in the first heat exchanger 203 absorbs most of the heat brought by the hot air, and the hot air that has absorbed heat is discharged into the cabinet 200 (As shown by arrow N2 in the figure). Since the first heat exchanger 203 and the second heat exchanger 205 are connected through the conduit 207, part of the heat transfer working fluid in the first heat exchanger 203 gasifies and expands rapidly to increase the pressure, pushing the heat transfer working fluid Flow to the second heat exchanger 205. When the cold air from the outside passes through the second heat exchanger 205, the heat transfer medium in the second heat exchanger 205 encounters the cold air to release heat and cool down, the bubbles shrink, the gas condenses into liquid, the pressure drops, the released heat and extreme A small part of the cold air will be exhausted to the external environment (shown by arrow W2 in the figure). Due to the pressure difference between the two ends, the randomness of gas/liquid plug distribution and the non-uniformity of local heat transfer, the pressure in the adjacent tubes is unbalanced, and the heat transfer working fluid is driven between the first heat exchanger 203 and the second heat exchanger. The circulating flow between the devices 205 realizes the transfer of heat from one end to the other end.

It should be understood that the current layout of the communication cabinet is to arrange the internal circulation fan 202 above the electronic equipment 201, as shown in Figure 2, this layout has two advantages: on the one hand, due to the natural rise of the hot air, the cold air naturally sinks According to the principle, placing the internal circulation fan 202 above the electronic device 201 is more conducive to sending hot air to the first heat exchanger 203 in time; on the other hand, placing the electronic device 201 below can facilitate the installation and maintenance of the electronic device 201 .

It should also be understood that in FIG. 2 only the situation where the external circulation fan 206 is located on the right side of the second heat exchanger 205 is shown. Optionally, the external circulation fan 206 can also be located on the left side of the second heat exchanger 205. The embodiment does not limit this.

In the prior art, assuming that the height of the cabinet is L, the height of the evaporator is M, and the height of the condenser is N, then the overall height of the device is L+M+N, and the embodiment of the present invention utilizes the existing technology without The internal space of the cabinet is utilized, such as the door edge part inside the cabinet, and the evaporator and the internal circulation fan are placed inside the cabinet. In the embodiment of the present invention, the height of the cabinet is L (the evaporator is already included inside, that is, the evaporator in the present invention The first heat exchanger), the height of the condenser is N, therefore, the overall height of the device in the embodiment of the present invention is L+N, which reduces the overall height of the device compared with the prior art. In addition, when the heat consumption of electronic equipment continues to increase, the existing technology needs to increase the height of the temperature control unit, that is, increase the height M+N, and the present invention only needs to increase the height M, so the present invention can also reduce the temperature of the electronic equipment. The device requires increased overall height as heat loss increases.

The device with heat exchange provided by the embodiment of the present invention can reduce the overall height of the device by distributing the temperature control units in different positions of the cabinet, making full use of the internal space of the cabinet that is not effectively used in the prior art, thereby reducing the At the same time, it can reduce the overall height of the device when the heat consumption of electronic equipment increases, so as to meet the ever-evolving heat dissipation requirements of the cabinet.

As an optional embodiment, a through hole is disposed on the top of the cabinet 200, and the conduit 207 connects the first heat exchanger 203 and the second heat exchanger 205 through the through hole.

As an optional embodiment, the first heat exchanger 203 is arranged on the door of the side wall with the largest distance from the electronic device 201 .

Specifically, the first heat exchanger 203 can be arranged on the door of any side wall of the cabinet. If the cabinet 200 has only one door, the first heat exchanger must be arranged on the door. If the cabinet 200 If there are at least two doors, then the first heat exchanger 203 can be arranged on the door of the side wall with the largest distance from the electronic device 201 .

It should be understood that the first heat exchanger 203 is arranged on the door of the side wall of the cabinet 200, so that the door can be opened to facilitate the maintenance of the electronic equipment 201 in the cabinet 200. After the door is closed, the internal circulation fan 202 and the first heat exchanger 203 closed and ventilated.

As an optional embodiment, the first heat exchanger 203 is used to convert the passing hot air into cold air, and the first heat exchanger 203 includes an evaporator.

It should be understood that the first heat exchanger includes but is not limited to an evaporator, and any device capable of converting passing hot air into cold air can be used as the first heat exchanger, which is not limited in this embodiment of the present invention.

As an optional embodiment, the second heat exchanger 205 is used to convert the passing cold air into hot air, and the second heat exchanger 205 includes a condenser.

It should be understood that the second heat exchanger includes but is not limited to a condenser, and any device capable of converting passing cold air into hot air can be used as the second heat exchanger, which is not limited in this embodiment of the present invention.

As an optional embodiment, as shown in FIG. 3 , a liquid cooling pump or an air conditioner compressor 208 is further provided on the outer top of the cabinet 200 for cooling.

Specifically, the liquid cooling pump or the air conditioner compressor 208 can be arranged on the outer top of the cabinet 200, and the liquid cooling pump or the air conditioner compressor 208 can replace the action of gravity to drive the heat transfer working fluid in the heat dissipation flat tube in the first exchange. between the heat exchanger 203 and the second heat exchanger 205 .

It should be understood that in FIG. 3 only the situation where the liquid-cooled pump or air-conditioning compressor 208 is located below the second heat exchanger 205 is shown. Optionally, the liquid-cooled pump or air-conditioning compressor 208 can also be located at Above the heat exchanger 205, or placed reasonably according to the size of the liquid cooling pump or air conditioner compressor 208 and the second heat exchanger 205, which is not limited in this embodiment of the present invention.

In the embodiment of the present invention, by adding a liquid-cooled pump or an air-conditioning compressor on the basis of the original solution, the temperature inside the cabinet can be lower than the outside temperature, realizing rapid cooling, greatly improving the heat dissipation capacity of the device, and satisfying the continuous evolution of the cabinet. Cooling requirements.

As an optional embodiment, the first heat exchanger 203 or the second heat exchanger 205 includes fins, and the fins are plate-fin, tube-fin or sleeve-fin. It should be understood that the first heat exchanger 203 may be an evaporator, and the second heat exchanger 205 may be a condenser.

Specifically, the first heat exchanger 203 and/or the second heat exchanger 205 may include: fins and heat dissipation flat tubes, the fins are arranged between two adjacent heat dissipation flat tubes, greatly increasing the effective heat transfer area. The heat-transfer working medium is filled inside the heat-dissipating flat tube, and the heat-transfer working medium can be ammonia, acetone or tetrafluoroethane R134A and the like.

The device with heat exchange provided by the embodiment of the present invention can reduce the overall height of the device by distributing the temperature control units at different positions of the cabinet, making full use of the internal space of the cabinet that is not effectively used in the prior art, thereby reducing the At the same time, it can reduce the overall height of the device when the heat consumption of electronic equipment increases, so as to meet the ever-evolving heat dissipation requirements of the cabinet.

It should be understood that the technical solutions of the embodiments of the present invention may be applied to various cabinets requiring heat dissipation, for example, outdoor communication cabinets, server cabinets, and wiring cabinets, which are not limited in the embodiments of the present invention.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the technical scope disclosed in the present invention. Modifications or replacements shall all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (8)

1. A device with heat exchange, characterized in that the device comprises a cabinet (200), and the cabinet (200) is provided with electronic equipment (201), an internal circulation fan (202) and a first heat exchanger (203), wherein, the internal circulation fan (202) is arranged above the electronic equipment (201), and the first heat exchanger (203) is arranged on the door of the side wall of the cabinet (200); An air guide structure (204) is arranged between the internal circulation fan (202) and the first heat exchanger (203), and the internal circulation fan (202) makes the air in the cabinet (200) passing through the first heat exchanger (203) through the air guiding structure (204); The outer top of the cabinet (200) is provided with a second heat exchanger (205) and an external circulation fan (206), wherein the first heat exchanger (203) and the second heat exchanger (205) pass through The conduit (207) is connected and contains a heat transfer working fluid that communicates, and the conduit (207) makes the heat transfer working fluid between the first heat exchanger (203) and the second heat exchanger (205) Between circulation flow, realize heat exchange. 2. The device according to claim 1, characterized in that, the top of the cabinet (200) is provided with a through hole, and the conduit (207) connects the first heat exchanger (203) and the first heat exchanger (203) through the through hole. The second heat exchanger (205). 3. The device according to claim 1 or 2, characterized in that the first heat exchanger (203) is arranged on the door of the side wall with the largest distance from the electronic equipment (201). 4. The device according to any one of claims 1 to 3, characterized in that, the first heat exchanger (203) is used to convert the passing hot air into cold air, and the first heat exchanger The device (203) includes an evaporator. 5. The device according to any one of claims 1 to 4, characterized in that, the second heat exchanger (205) is used to convert the passing cold air into hot air, and the second heat exchanger The device (205) includes a condenser. 6. The device according to any one of claims 1 to 5, characterized in that, the outer top of the cabinet (200) is also provided with a liquid cooling pump or an air conditioner compressor (208), and the liquid cooling pump or air conditioner Compressor (208) is used for refrigeration. 7. The device according to any one of claims 1 to 6, characterized in that, the first heat exchanger (203) or the second heat exchanger (205) comprises fins, and the fins It is plate-fin type, tube-fin type or shroud type. 8. The device according to any one of claims 1 to 7, characterized in that the heat transfer medium is ammonia, acetone or tetrafluoroethane R134A.