Heat insulation device

Abstract

The utility model relates to the technical field of temperature control of a base station cabinet, in particular to a heat insulation device, which comprises two first plates, two second plates and a heat insulation layer, the two second plates are correspondingly arranged on the left sides and the right sides of the two first plates, the two ends of each second plate are fixed to the side walls of the two first plates respectively, and the two second plates are used for sealing the left sides and the right sides of the two first plates; the two first plates and the two second plates define a hollow interlayer with the top end and the bottom end open, and the interlayer is used for air circulation. The radiator has the advantages that the hollow interlayer with the upper end and the lower end opened is defined by the two first plates and the two second plates, so that the phenomenon of air convection in the interlayer is enhanced when hot air is transferred from bottom to top during heat dissipation, and the heated air flows out upwards; and external hot air can be prevented from being transferred into the cabinet while heat dissipation is performed, so that normal operation of the communication cabinet can be ensured even in an ultra-high-temperature weather state, and internal overtemperature of the communication cabinet is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to base station cabinet temperature control technical field, concretely relates to a heat insulating device. BACKGROUND

[0002] With the development of communication technology, the distance between people is gradually shortened. In order to realize smooth communication, enough signals need to be covered in a certain area, and the base station plays an important role. According to the "2021 communication industry statistical bulletin", as of 2021, the total number of mobile communication base stations in China reached 996 million, with a net increase of 650 million in 2021. Among them, 4G base stations reached 590 million, and 5G base stations reached 142.5 million. Therefore, the construction status of communication base stations and communication cabinets closely related to them in China is still in the rapid development stage, and there is still great demand, which also puts forward more severe challenges to the service life, energy saving and efficiency of communication base stations.

[0003] However, the heat dissipation problem of the cabinet has many adverse effects on the energy consumption and service life of the communication base station, and the heat insulation is also a way to solve the heat dissipation problem of the communication base station. Generally speaking, due to solar radiation and high-temperature air, the temperature of the outer wall of the cabinet is high during the hot summer period. According to the field measurement data, the sunlight temperature of the outer wall surface can reach 55-65℃ during the four to six months of summer. The high-temperature cabinet door continuously transfers heat to the internal environment of the communication base station cabinet through heat radiation and convection heat transfer, causing the internal environment temperature to be too high, the heat dissipation device to fail, and the internal equipment to be high-temperature alarmed and down. At present, the most commonly used method for heat dissipation of the communication cabinet is to punch some holes on the single-layer cabinet wall, and the internal hot air is limited to flow out. For example, the patent with publication number CN214256933U has poor heat dissipation effect in actual use, and also causes external pollutants and dust to enter the cabinet. There are also some other ways to dissipate heat on the market, such as the patent with publication number CN216218356U, which absorbs heat from the outside and dissipates heat from the inside, allowing the internal heat to be conducted outward. However, it does not consider how to insulate the external heat load from being transferred inward, and directly ignores the influence of external heat conduction on the internal heat source, resulting in increased internal heat source and poor heat dissipation effect. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a kind of heat insulating device, based on chimney effect, so that air reinforced convection is formed in interlayer, while dissipating heat, it can also prevent external hot air from transferring into cabinet, realize heat dissipation and heat insulation.

[0005] The technical scheme of the utility model is:

[0006] A kind of heat insulating device, comprising:

[0007] Two first plates are arranged in parallel and one of the first plates is arranged on the cabinet door;

[0008] Two second plates are arranged on the left and right sides of the first plates and the two ends of the second plates are fixed to the side walls of the first plates.

[0009] The first plates and the second plates form a hollow sandwich with open top and bottom ends and the sandwich is used for air circulation.

[0010] Preferably, the height of the first plates is equal to the height of the second plates and the bottom ends of the first plates are flush with the bottom ends of the second plates.

[0011] Preferably, the top and bottom ends of the first plates are provided with third plates and the periphery of the third plates is fixed to the side walls of the first plates and the second plates.

[0012] Preferably, the opening rate of the third plate is 55%-80%.

[0013] Preferably, the opening rate of the third plate is 70%.

[0014] Preferably, the shape of the air holes is rectangular, circular or triangular.

[0015] Preferably, the application further comprises:

[0016] A plurality of air supply assemblies are arranged in the sandwich and the air supply assemblies are used for supplying air to the top of the sandwich to accelerate air circulation.

[0017] Preferably, the air supply assembly comprises:

[0018] A support plate is horizontally arranged between the first plates and the two sides of the support plate are fixed to the side walls of the first plates.

[0019] A driving member is arranged on the support plate and the driving member has an output end.

[0020] A rotating drum is vertically arranged on the output end of the driving member and the driving member is used for driving the rotating drum to rotate.

[0021] A plurality of blades are arranged on the end of the rotating drum away from the driving member and the blades are arranged in a ring array around the circumference of the rotating drum.

[0022] Compared with the prior art, the heat insulation device has the following beneficial effects:

[0023] The device is based on the chimney effect, and a hollow interlayer with open upper and lower ends is formed by surrounding the interlayer with two first plates and two second plates. When heat is dissipated, the phenomenon of enhanced convection of air in the interlayer is caused when hot air is transferred upward, so that the hot air flows upward and is dissipated. On the one hand, the hot air flows upward and is dissipated. On the other hand, when the hot air flows upward, the external hot air is prevented from being transferred into the cabinet for heat insulation. The communication cabinet can normally and safely operate even in an extremely high-temperature weather condition, the internal temperature of the communication cabinet is prevented from being too high, the heat generating components and modules in the cabinet obtain a good heat insulation environment, the effective operation of the internal heat dissipation device is ensured, the internal heat dissipation load bearing capacity is improved, and the possibility of a downtime accident is reduced. The heat dissipation mode of the device can not only dissipate heat but also insulate heat, effectively reduces and isolates the influence of the external environmental heat load on the internal environment of the cabinet, reduces the temperature of the internal environment of the cabinet, and ensures that the power supply, transmission equipment and other modules can be effectively and durably cooled at the same time, thereby ensuring the normal operation of the base station and prolonging the service life of the module equipment and the base station. In addition, the device is provided with a plurality of air supply assemblies in the interlayer, so that air circulation is accelerated, heat dissipation is faster, and the effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model;

[0025] Figure 2 It is a top view of the utility model;

[0026] Figure 3 It is an application schematic view of the utility model;

[0027] Figure 4 It is a schematic view of the third plate of the utility model;

[0028] Figure 5 It is a schematic view of the third plate of the utility model;

[0029] Figure 6 It is a schematic view of the third plate of the utility model;

[0030] Figure 7 It is a schematic view of the third plate of the utility model;

[0031] Figure 8 It is the overall heat dissipation condition of the utility model when the width of the interlayer is 1cm;

[0032] Figure 9 It is the overall heat dissipation condition of the utility model when the width of the interlayer is 2cm;

[0033] Figure 10The overall heat dissipation condition of the utility model under the interlayer width of 3cm;

[0034] Figure 11 The overall heat dissipation condition of the utility model under the interlayer width of 4cm;

[0035] Figure 12 The overall heat dissipation condition of the utility model under the interlayer width of 5cm;

[0036] Figure 13 The overall heat dissipation condition of the utility model under the interlayer width of 6cm;

[0037] Figure 14 The overall heat dissipation condition of the utility model under the interlayer width of 7cm;

[0038] Figure 15 The numerical simulation and heat distribution in the working environment of the utility model;

[0039] Figure 16 The numerical simulation and velocity nephogram in the working environment of the utility model;

[0040] Figure 17 The numerical simulation and streamline diagram in the working environment of the utility model. DETAILED DESCRIPTION

[0041] One specific embodiment of the utility model will be described in detail below with reference to the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0042] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical scheme of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0043] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0044] In addition, in the description of the present application, "multiple" means two or more than two. The terms "first", "second" are only for the purpose of description, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more features.

[0045] Example 1

[0046] As Figure 1As shown, the utility model provides a kind of heat insulation device, comprising: first board 1, second board 2.Two first boards 1 are spaced apart, that is, a certain interval d is left between two first boards 1, the range of d can be 1cm-7cm, and two first boards 1 are mutually parallel, two first boards 1 are vertically arranged, in actual use, one first board 1 is connected with the side of cabinet needing heat insulation, heat dissipation;Two second boards 2 are correspondingly arranged on the left and right sides of two first boards 1, second board 2 is perpendicular to two first boards 1, and the two ends of second board 2 are fixed to the side wall of two first boards 1, second board 2 can be fixed to two first boards 1 by welding or other ways, two second boards 2 are used to close the left and right sides of two first boards 1, hot gas can only flow from the bottom to the top of two first boards 1, so that air convection, better heat dissipation.The above-mentioned two first boards 1 and two second boards 2 form a hollow and open-ended sandwich, the sandwich is used for air circulation, which is equivalent to two first boards 1 and two second boards 2 forming a rectangular frame, the middle vertical is through, so as to form a sandwich for air circulation, the width of sandwich is equal to d, the range is 1cm-7cm, the sandwich is a vertical slope space, the device is based on chimney effect, chimney effect refers to: indoor air rises or falls along the space with vertical slope, causing air to strengthen convection phenomenon.The generation of chimney effect, in the building, structure (such as water tower) with similar chimney characteristics, i.e. from bottom to top with smooth flow space, air (including smoke) relies on the action of density difference, quickly diffuses or discharges from the building, which is chimney effect, a kind of performance of heat exchange form.When the device is used, the heat source comes from cabinet, and hot gas flows from the bottom to the top of two first boards 1 during heat dissipation, when hot air is transmitted from bottom to top, air in sandwich strengthens convection, air is heated unevenly, hot air goes up and cold air goes down, on the one hand, hot air flows out to dissipate heat, on the other hand, when hot air flows out, it can also prevent external hot air from transferring into cabinet to insulate, realize heat dissipation while preventing external heat from transferring into cabinet, especially in hot summer, the device can also prevent external heat from transferring into cabinet while dissipating heat, even in super high temperature weather, it can ensure that communication cabinet operates normally and safely, prevent internal overtemperature of communication cabinet, ensure that internal heating components and modules of cabinet obtain good insulation environment, ensure effective operation of internal heat dissipation device, improve internal heat dissipation load bearing capacity, and reduce the possibility of downtime accident.In addition, in actual application, an air conditioner can be arranged inside the cabinet, and cold air blown by the air conditioner can directly cool the heat generating components and devices, thereby improving the utilization rate of the cold source, and maintaining the temperature of the related communication modules in a reasonable range for a long time.

[0047] In summary, the device uses the physical principle of chimney effect for heat insulation and heat dissipation, has simple structure and good heat dissipation effect, effectively reduces and isolates the influence of external environmental heat load on the internal environment of the cabinet, reduces the temperature of the internal environment of the cabinet, and ensures that the power supply, transmission equipment and other modules can be effectively and durably cooled at the same time, thereby ensuring the normal operation of the base station and prolonging the service life of the module equipment and the base station.

[0048] Further, the height of the two first plates 1 is equal to the height of the two second plates 2, and the bottom end of the two first plates 1 is flush with the bottom end of the two second plates 2. Since the height of the first plate 1 is equal to the height of the second plate 2, the top end of the first plate 1 is also flush with the top end of the second plate 2, so that the hot air in the interlayer can flow upward better.

[0049] Further, an extension plate 5 can be arranged on one side of one of the first plates 1, and a handle 6 is arranged on the extension plate 5. Figure 3 As shown in FIG. 2, the device is equivalent to a heat insulation door installed on the cabinet, and the extension plate 5 and the handle 6 are arranged to form a hidden door handle with a lock, so as to protect the safety inside the cabinet, prevent theft, and facilitate opening and closing of the cabinet.

[0050] Embodiment 2

[0051] As a further improved scheme based on embodiment 1, further, the top end and the bottom end of the two first plates 1 are respectively provided with a third plate 3, the periphery of the third plate 3 is fixed with the side wall of the two first plates 1 and the two second plates 2, a plurality of air holes 31 are vertically and uniformly arranged on the third plate 3, and the two third plates 3 are equivalent to seal the top end and the bottom end of the interlayer. The plurality of air holes 31 arranged on the third plate 3 do not affect the air flow in the interlayer, the positions and sizes of the air holes 31 on the two third plates 3 correspond to each other, the two third plates 3 are equivalent to grating plates, and the air holes 31 are equivalent to grating holes. The grating plate is arranged to strengthen natural convection and better dissipate heat. During heat dissipation, hot air flows from the third plate 3 at the bottom end to the third plate 3 at the top end.

[0052] Further, the third plate 3 has an open rate of 55%-80%, when the open rate of the ventilation holes 31 on the third plate 3 is within the range of 55%-80%, the effect of strengthening natural convection is better; when the open rate of the ventilation holes 31 on the third plate 3 is less than 55% or greater than 80%, the effect of strengthening natural convection is slightly worse.

[0053] Further, the third plate 3 has an open rate of 55%-80%, when the open rate of the ventilation holes 31 on the third plate 3 is within the range of 55%-80%, the effect of strengthening natural convection is better; when the open rate of the ventilation holes 31 on the third plate 3 is less than 55% or greater than 80%, the effect of strengthening natural convection is slightly worse. Figure 2 Further, the third plate 3 has an open rate of 55%-80%, when the open rate of the ventilation holes 31 on the third plate 3 is within the range of 55%-80%, the effect of strengthening natural convection is better; when the open rate of the ventilation holes 31 on the third plate 3 is less than 55% or greater than 80%, the effect of strengthening natural convection is slightly worse.

[0054] Further, as shown in Figures 4-7 , the shape of the ventilation holes 31 is rectangular or circular or triangular, or can be any other shape, such as a rounded rectangular grid, and the present embodiment only lists a few commonly used shapes in actual applications, and is not limited to the arrangement shape.

[0055] In the present embodiment, the other structures are the same as those of Embodiment 1, except that the present embodiment is an optimization of Embodiment 1.

[0056] Embodiment 3

[0057] As a further improvement based on Embodiment 1, in order to achieve better heat dissipation and heat insulation, the application further comprises: a plurality of air supply assemblies 4 are arranged in the interlayer, the positions of the plurality of air supply assemblies 4 are not limited, and they can be arranged in the interlayer; the air supply assembly 4 is used to supply air to the top of the interlayer to accelerate air circulation, and the air supply assembly 4 can blow air to accelerate the rate of air circulation and dissipate heat faster; the air supply assembly 4 can work when the temperature is high.

[0058] The embodiment provides a specific mode of the air supply assembly 4 (other modes such as air guns can also be adopted), and further, the air supply assembly 4 comprises a support plate 41, a driving piece, a rotating drum 42 and a blade 43. The support plate 41 is horizontally arranged between the two first plates 1, the two sides of the support plate 41 are fixed with the side walls of the two first plates 1 respectively, and the support plate 41 can be fixed with the two first plates 1 by welding; the driving piece is arranged on the support plate 41, and the driving piece has an output end; the rotating drum 42 is vertically arranged at the output end of the driving piece, and the driving piece is used for driving the rotating drum 42 to rotate; the driving piece can be a micro motor, a micro motor or a rudder or other rotating driving pieces (the embodiment provides several types of driving pieces that can be adopted in practical applications: ZWBPD006006, ZWBPD010010, ZWBPD016016 and the like), and the rotating drum 42 is a cylinder; a plurality of blades 43 are arranged at one end of the rotating drum 42 away from the driving piece, and the plurality of blades 43 are arranged in an annular array mode in the circumferential direction of the rotating drum 42. The structure and working principle of the air supply assembly 4 of the device are same as those of the micro fan on the market, in use, the driving piece is driven to work, the rotating drum 42 is driven to rotate, the rotating drum 42 drives the blades 43 arranged thereon to rotate synchronously, air is generated, and the effect of accelerating the air flow rate is achieved. The support plate 41 has sufficient thickness and supporting force to support the driving piece and the components arranged thereon. The controller is electrically connected with the plurality of air supply assemblies 4, the controller is electrically connected with the driving piece, the controller can control the driving piece to work and the driving piece of which group of air supply assemblies 4 to work, and the specific control device and control method are prior art and known by those skilled in the art.

[0059] In the embodiment, other structures are the same as those in the embodiment 1, and only the embodiment 1 is optimized.

[0060] Objective entity models are used to make simulation experiments under different interlayer parameters, and overall heat dissipation conditions are as shown in Figures 8-14 The heat distribution and heat insulation effect of the objective entity model are as shown in Figures 15-17 It can be clearly seen from the drawings that, in the actual working environment of the device, when the hot air is transmitted from bottom to top, the air convection in the interlayer is strengthened, the hot air flows upward, good heat dissipation and heat insulation can be achieved, the heat insulation environment of the heat generating components and heat generating modules in the cabinet is ensured, the effective operation of the internal heat dissipation device is ensured, the internal heat dissipation load bearing capacity is improved, and the possibility of downtime accidents is reduced.

[0061] The device has the advantages that the device is based on the chimney effect, two first plates and two second plates are arranged to form a hollow interlayer with open upper and lower ends, and when heat dissipation is performed, the hot air is transferred from bottom to top, which causes the air in the interlayer to strengthen convection, the hot air flows upwards, on one hand, the hot air flows upwards to dissipate heat, on the other hand, the hot air flowing upwards can also prevent the external hot air from transferring into the cabinet to perform heat insulation, the external hot air is prevented from transferring into the cabinet, the communication cabinet can normally and safely operate even in the super-high-temperature weather, and the over-temperature in the communication cabinet is prevented.

[0062] The above disclosed are only several specific embodiments of the utility model, but the utility model embodiments are not limited to this, and any change that can be thought of by any person skilled in the art shall fall into the protection scope of the utility model.

Claims

1. A thermal insulation device, characterized in that The utility model relates to a cabinet door air flow device, including: Two first plates (1) are arranged at intervals and are arranged in parallel with each other, wherein one first plate (1) is arranged on the cabinet door; Two second plates (2) are arranged on the left and right sides of the two first plates (1) correspondingly, and the two ends of the second plate (2) are fixed with the side walls of the two first plates (1), and the two second plates (2) are used for closing the left and right sides of the two first plates (1); The two first plates (1) and the two second plates (2) form a sandwich with hollow and open top and bottom ends, and the sandwich is used for air circulation.

2. A thermal insulation device according to claim 1, characterised in that The height of the two first plates (1) is equal to the height of the two second plates (2), and the bottom end of the two first plates (1) is flush with the bottom end of the two second plates (2).

3. A thermal insulation device according to claim 1, characterized in that The top end and the bottom end of the two first plates (1) are respectively provided with a third plate (3), the periphery of the third plate (3) is respectively fixed with the side walls of the two first plates (1) and the two second plates (2), and a plurality of air holes (31) are uniformly arranged on the third plate (3).

4. A thermal insulation device according to claim 3, characterised in that The opening rate of the third plate (3) is 55%-80%.

5. A thermal insulation device according to claim 4, characterised in that The opening rate of the third plate (3) is 70%.

6. A thermal insulation device according to claim 3, wherein The shape of the air hole (31) is rectangular or circular or triangular.

7. A thermal insulation device according to claim 1, wherein Further including: A plurality of air supply assemblies (4) are arranged in the sandwich respectively, and the air supply assembly (4) is used for air supply to the top of the sandwich to accelerate air circulation.

8. A thermal insulation device according to claim 7, characterised in that The air supply assembly (4) includes: A support plate (41) is arranged horizontally between the two first plates (1), and the two sides of the support plate (41) are respectively fixed with the side walls of the two first plates (1); A driving member is arranged on the support plate (41), and the driving member has an output end; A rotating drum (42) is arranged vertically on the output end of the driving member, and the driving member is used for driving the rotating drum (42) to rotate; A plurality of blades (43) are arranged on one end of the rotating drum (42) away from the driving member, and the plurality of blades (43) are arranged in an annular array on the circumference of the rotating drum (42).

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