CN115696810A - Cabinet of instrument control equipment - Google Patents

Abstract

The invention discloses a cabinet of instrument control equipment, which comprises a cabinet shell, wherein a closed wall and a back plate are arranged in the cabinet shell, the back plate is connected with the closed wall, the instrument control equipment is connected with the closed wall through a panel of the instrument control equipment, and a circumferential closed space is formed by the panel, at least one part of the closed wall and the back plate in a surrounding manner so as to limit a heat dissipation airflow channel of the cabinet. The cabinet of the instrument control equipment can solve the problems of heat dissipation airflow turning back, low overall utilization rate, unbalanced overall heat dissipation and the like of the conventional cabinet.

Description

Cabinet of instrument control equipment

Technical Field

The invention relates to the related field of electrical equipment, in particular to a cabinet of instrument control equipment.

Background

The heat dissipation of the cabinet is mainly to lead out the heat energy generated when the internal electrical equipment works in a heat transfer mode so as to ensure that the electrical equipment stably operates at the temperature within a specified range. The heat transfer modes mainly comprise conduction, convection and radiation. In some fields such as nuclear power field, electrical equipment installed in a cabinet is mainly a case or a module, and heat dissipation of the cabinet is mainly realized by natural or forced air convection.

The existing heat dissipation design of the cabinet is mainly that an air inlet is designed at the lower part of the cabinet, and an air outlet is designed at the upper part of the cabinet, so that air enters the cabinet from the air inlet and then exits the cabinet from the air outlet. Fan units are mounted below or above the chassis, modular products in the cabinet, with a set of fan units mounted on each level or every other level. The heat dissipation of the instrument control equipment is realized by forcibly forming air flow from bottom to top through the fan unit. The temperature of the ambient air flow is raised by heat generated by the instrument control equipment in the operation process, the hot air flow flows to the upper part of the cabinet under the action of the fan unit at the air outlet or in a natural state, and flows out of the cabinet under the action of the fan unit at the air outlet.

Patent CN210760330U discloses a multi-channel heat dissipation and power exchange cabinet, which includes a cabinet body, a power distribution bin and a battery bin, the power distribution bin and the battery bin are arranged on the cabinet body, an exhaust fan is arranged on the rear wall of the power distribution bin, the rear portion of the battery bin and the rear wall of the cabinet body are arranged at intervals to form a confluence channel, and the rear portion of the power distribution bin and the confluence channel are communicated through a reserved channel; the bottom of battery compartment sets up the gib block of directional fore-and-aft direction, and the diapire of battery compartment encloses into adherence air flue with battery lateral wall and gib block jointly. The exhaust fan that the distribution storehouse rear portion set up provides the inside air current of whole battery cabinet that trades and flows the main power, when the exhaust fan rotates, the air current gets into the battery compartment from the gap between battery compartment door and the door opening in, and flow backward along adherence air flue, then get into the passageway that converges through the back of the body hole, finally discharge by the exhaust fan, and the independent circulation of air current of every battery compartment, can not influence each other and convection current or vortex appear, consequently can guarantee that every battery compartment can both dispel the heat smoothly.

Patent CN111970913A discloses a large capacity rack cooling system, which comprises a cabinet, subrack and heat exchanger, be equipped with multilayer installation space in the rack, the subrack is installed respectively to every layer of installation space, the inside front side interval of rack is formed with inlet air channel, the inside rear side interval of rack is formed with heat dissipation channel, install a plurality of first centrifugal fan that arrange in proper order from top to bottom in the heat dissipation channel of the inside rear side of rack, heat dissipation channel bottom and inlet air channel bottom are connected with the heat exchanger respectively and are formed closed heat dissipation circulation wind path.

As can be seen from the above, in the prior art, the cabinet heat dissipation design is to form forced convection by the fan unit, and a plurality of airflow channels are generally arranged in the cabinet, and the heat dissipation airflow may converge or turn, and the following technical problems exist: 1. the heat dissipation channel structure needs to be designed according to the layout of the equipment in a customized manner, and the heat dissipation channel structure needs to be designed again after the layout of the equipment is changed. 2. The air current meets and blocks back easily turn back downwards, appear the backward flow or form local swirl air current to influence whole radiating effect. 3. The number of the fan units in the cabinet is large, and the cabinet occupies a large equipment installation space, so that the overall utilization rate of the cabinet is reduced. 4. The area close to the fan unit is better in heat dissipation, the area far away from the fan unit is poorer in heat dissipation, and the whole heat dissipation of the cabinet is unbalanced. 5. If the fan unit is damaged and air convection cannot be formed, the requirement of normal operation of the equipment in the 24-hour cabinet in a fan-free state cannot be met.

The present invention has been made in view of the above problems.

Disclosure of Invention

The invention mainly aims to provide a cabinet of instrument control equipment, which is used for solving the problems of heat dissipation airflow turning back, low overall utilization rate, unbalanced overall heat dissipation and the like of the conventional cabinet.

According to the above purpose, the present application provides a cabinet for an instrument and control device, including a cabinet housing, a closing wall and a back plate are arranged in the cabinet housing, the back plate is connected with the closing wall, the instrument and control device is connected with the closing wall through a panel thereof, and the panel, at least a part of the closing wall and the back plate are enclosed to form a circumferential closed space so as to limit a heat dissipation airflow channel of the cabinet.

Further, the instrumentation and control device further comprises a side face and a rear face, and a heat dissipation airflow channel is formed in the circumferential closed space and outside the side face and the rear face.

Furthermore, a first air flow channel is formed outside the side surface in the circumferential closed space, a second air flow channel is formed outside the rear surface, and the first air flow channel and/or the second air flow channel form a heat dissipation air flow channel.

Furthermore, the instrument control equipment also comprises a top surface and a bottom surface, wherein the top surface and the bottom surface are hollow plates, and heat dissipation airflow channels are formed inside the hollow plates and the instrument control equipment.

Further, a plurality of circumferentially closed spaces are provided in the vertical direction along the closing wall, and the plurality of circumferentially closed spaces are respectively provided with a heat dissipation airflow passage.

Furthermore, a fan unit is arranged in the circumferential closed space and provides flowing power for airflow in the heat dissipation airflow channel.

Furthermore, the top of the cabinet also comprises an air guide plate assembly which is an upwards convex curved plate.

Further, the cabinet housing includes a top plate and a bottom plate, and the closing wall extends in the vertical direction and is connected to the top plate and the bottom plate.

Further, the instrumentation and control device is located within the heat sink airflow channel.

Furthermore, the bottom of the cabinet shell also comprises an air inlet.

Further, the top or the rear part of the cabinet shell also comprises an air outlet.

By applying the technical scheme of the invention, at least the following beneficial effects are realized:

1. the enclosed wall, the panel and the back plate in the cabinet are arranged in an enclosing mode to form a circumferential enclosed space, flexible layout of various instrument control devices in the cabinet can be achieved by adjusting the position of the panel or the back plate, and the design influence of the change of the device layout on a heat dissipation structure is small;

2. the heat dissipation airflow channel is a single-path air channel, the sealing performance is good, the air guide plate assembly is arranged, smoothness of airflow at each position in the heat dissipation airflow channel can be guaranteed, heat dissipation is uniform, and influences of airflow backflow, turning back and the like are reduced;

3. the first air flow channel is a narrow gap, a narrow pipe effect can be formed, backflow of air flow can be effectively prevented, and the flow rate of the air flow is increased;

4. according to the heat dissipation device, the independent heat dissipation airflow channel is designed in the cabinet, the utilization rate of the intake air is greatly improved, and the number of required fans is reduced on the premise of ensuring the same heat dissipation effect, so that the utilization rate of the space in the cabinet is improved;

5. the heat dissipation channel can realize the normal operation of the cabinet for 24 hours in a fan-free state.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a side cutaway view of a cabinet according to an embodiment of the present invention;

FIG. 2 shows a schematic view of a first type of circumferentially enclosed space of an embodiment of the present invention;

FIG. 3 shows a top view of a first type of circumferentially enclosed space of an embodiment of the present invention;

FIG. 4 shows a second type of circumferentially enclosed space schematic of an embodiment of the present invention;

FIG. 5 shows a top view of a second type of circumferentially enclosed space of an embodiment of the present invention;

FIG. 6 illustrates a third type of circumferentially enclosed space schematic of an embodiment of the present invention;

FIG. 7 shows a top view of a third type of circumferentially enclosed space in accordance with an embodiment of the present invention

Fig. 8 illustrates a back elevation view of a cabinet of an embodiment of the present invention;

FIG. 9 illustrates a third type of back mount schematic of an embodiment of the present invention;

FIG. 10 illustrates a front elevational view of a cabinet of an embodiment of the present invention;

FIG. 11 shows a fan unit mounting schematic of an embodiment of the invention;

FIG. 12 shows a schematic view of a fan unit of an embodiment of the invention;

FIG. 13 shows a triple view of a closure wall of an embodiment of the present invention;

figure 14 shows a schematic view of an air deflection system according to an embodiment of the present invention;

FIG. 15 shows a schematic front view of a first cabinet housing of an embodiment of the invention;

FIG. 16 shows a first cabinet housing back view of an embodiment of the present invention;

fig. 17 shows a second cabinet housing according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

1. a cabinet housing; 11. a top plate; 12. a base plate; 13. an air inlet; 14. an air outlet; 2. a closure wall; 3. instrumentation equipment; 31. a panel; 32. a side surface; 33. a rear side; 34. a top surface; 35. a bottom surface; 4. a back plate; 5. a circumferentially enclosed space; 6. a heat dissipation airflow channel; 61. a first air flow passage; 62. a second airflow channel; 7. a fan unit; 8. an air deflector assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The present invention is described in further detail below with reference to specific examples, which are not to be construed as limiting the scope of the invention as claimed. The term "comprising" when used indicates the presence of a feature but does not preclude the presence or addition of one or more other features; the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used to indicate an orientation or positional relationship based on that shown in the drawings for ease of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention; furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description, it is to be noted that, unless expressly specified or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as for example, they may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Example (b):

the cabinet heat radiation structure design of prior art mainly has the heat dissipation air current easily turn back, the cabinet in the overall utilization rate lower, the uneven scheduling problem of whole heat dissipation, this application provides an instrument control equipment's cabinet, through set up independent, circumference confined heat dissipation channel inside it, has solved above technical problem.

As shown in fig. 1, the enclosure of the instrumentation and control device of the present application includes an enclosure housing 1, a closed wall 2 and a back panel 4 are disposed in the enclosure housing 1, the back panel 4 is connected to the closed wall 2, the instrumentation and control device 3 is connected to the closed wall 2 through a panel 31 thereof, and the panel 31, at least a portion of the closed wall 2 and the back panel 4 enclose a circumferential closed space 5 to define a heat dissipation airflow channel 6 of the enclosure.

Specifically, a circumferential enclosed space 5 is defined by two enclosure walls 2 on both sides, a rear back panel 4, and a front panel 31 in the cabinet. The panel 31 is located at the front side of the instrument control device 3, and two ends of the panel are fixedly connected with the two closed walls 2 respectively. Two ends of the back plate 4 are respectively fixedly connected with the other sides of the two closed walls 2. Preferably, the back plate 4 may be selected from the same components as the face plate 31.

The circumferentially enclosed space 5 in this application includes, but is not limited to, the following types, different types of installations adaptable to non-instrumentation equipment and instrumentation equipment of different specifications to form an enclosed heat dissipation airflow path.

Different types of circumferential enclosures 5 will be explained below.

As shown in fig. 2, in the first type, the front panel 31 can be used alone without the control device 3, and in this case, the enclosure wall 2, the front panel 31 and the back panel 4 enclose a circumferential enclosure 5, and a heat dissipation airflow channel is formed inside the circumferential enclosure 5, as shown by the shaded portion in fig. 3.

As shown in fig. 4, in the second type, the instrumentation and control device 3 is mounted on one side of the two enclosure walls 2 by means of its face plate 31, and behind the instrumentation and control device 3, the two ends of the back plate 4 are fixedly connected to the other side of the two enclosure walls 2, respectively. A heat dissipation air flow channel 6 is formed between the instrumentation 3 and the circumferential enclosure 5.

Specifically, as shown in fig. 5, the instrumentation and control device 3 further comprises a lateral surface 32 and a rear surface 33, and the heat-dissipating airflow passage 6 is formed in the circumferentially enclosed space 5, outside the lateral surface 32 and the rear surface 33. Wherein a first air flow channel 61 is formed outside the side face 32, a second air flow channel 62 is formed outside the rear face 33, and the first air flow channel 61 and the second air flow channel 62 form the heat dissipation air flow channel 6.

Preferably, the distance between the side 32 of the instrumentation device 3 and the closing wall 2 is small in this embodiment, so that a narrow first air flow channel 61 is formed, the backflow of the air flow can be effectively prevented due to the narrow tube effect, and the flow rate of the air flow can be increased.

Furthermore, in other embodiments of the present application, there may be no gap between the side surface 32 and the closed wall 2 or the rear surface 33 and the back plate 4, and the first airflow channel 61 or the second airflow channel 62 alone may form the heat dissipation airflow channel 6.

In the third type, as shown in fig. 6, when the side 32 of the instrumentation 3 is greater than the width of the closing wall 2, reference is made to fig. 1. At this time, the back plate 4 is not used, the back 33 of the instrument control device 3 is a closed surface, and the instrument control device 3 and the panel 31 thereof and the closed wall 2 are surrounded to form a circumferential closed space 5. When the air flow reaches the instrumentation 3, it flows out through the inside of the instrumentation 3.

Specifically, instrumentation 3 includes a top surface 34 and a bottom surface 35. As shown in fig. 7, the top surface 34 and the bottom surface 35 are hollow plates, and the top surface 34 and the bottom surface 35 of the instrument control device 3 are communicated to form the heat dissipation airflow channel 6, so that the airflow can achieve a good heat dissipation function through the heat dissipation airflow channel 6.

As shown in fig. 8 and 9, the third type uses the illustrated mounting to fixedly connect the rear face 33 of the instrumentation 3 to the enclosure wall 2, so that the instrumentation 3 is securely mounted.

This kind of hollow out construction of instrument control equipment in this application is not limited to the third type, and instrument control equipment in the second type also can adopt this kind of hollow out construction to further increase the area of heat dissipation airflow channel 6. Furthermore, it is also possible that the third type of heat dissipating air flow passages 6 comprises the first air flow passages 61 of the second type.

In this embodiment, the inside of the cabinet may include any one or a combination of the three types, and the number of the different types is not limited, and may be matched according to the actual application.

As shown in fig. 1, 8 and 10, there are a plurality of circumferential closed spaces 5 in the vertical direction along the closing wall 2, the plurality of circumferential closed spaces 5 being arranged in series in the vertical direction of the cabinet, and each circumferential closed space 5 may include any one of the three types as described above. The panels 31 of the plurality of circumferential enclosures 5 are arranged without gaps. The plurality of circumferential closed spaces 5 are respectively provided with respective heat dissipation airflow channels 6, and the plurality of heat dissipation airflow channels 6 are mutually communicated to form an integral cabinet heat dissipation airflow channel.

A plurality of instrument control equipment that lie in heat dissipation airflow channel in this application can carry out nimble overall arrangement according to the demand of difference, and the position change in the rack can be realized to various instrument control equipment through the position of adjustment panel or backplate, and the change of equipment overall arrangement is less to heat radiation structure's design influence.

As shown in fig. 11, a fan unit 7 as shown in fig. 12 is further disposed in the circumferential enclosed space 5, and the fan unit 7 can provide flow power for the air flow in the heat dissipation air flow channel 6. The number and the positions of the fan units 7 in the heat dissipation airflow channel of the whole cabinet are not limited, and the fan units can be flexibly installed according to actual conditions. Preferably, only one fan unit is arranged in the heat dissipation airflow channel at the middle position of the cabinet, so that a good active heat dissipation effect can be realized. The cabinet heat dissipation channel design of the instrument control equipment effectively reduces the number of the fan units and improves the utilization rate of the space in the cabinet.

Preferably, the present application uses a closing wall 2 as shown in fig. 13, the closing wall 2 extends along the vertical direction of the cabinet, and a row of mounting holes for mounting the panel 31 and the back panel 4 are arranged on the side edge of the closing wall 2. Referring to fig. 1, the top and bottom ends of the enclosure wall 2 are connected to the top and bottom panels 11 and 12, respectively, of the cabinet housing 1.

Referring to fig. 1, a first gap is formed between the whole heat dissipation airflow channel of the cabinet and the bottom plate 12, a second gap is formed between the heat dissipation channel and the top plate 11, and the first gap and the second gap, at least one of which is open in the circumferential direction, are formed by enclosing the closed wall 2 and/or the panel 31. In the second gap 6, a wind deflector assembly 8 can be provided as shown in fig. 14, wherein the wind deflector assembly 8 comprises an arc-shaped part which is a curved plate protruding upwards. The hot airflow exhausted upwards from the integral heat dissipation airflow channel of the cabinet passes through the lower part of the arc-shaped part and guides the airflow to the rear part of the cabinet.

The utility model provides a heat dissipation air current channel is the wind channel of single route, and the closure is better, sets up air deflector assembly, can ensure the unobstructed of air current everywhere in the air current channel that looses, and the heat dissipation is even to reduce the influence of air current backward flow, turn back etc..

Referring to fig. 15-17, there are two designs of cabinet housing, each with an air inlet 13 at the lower part of the front cabinet door of the cabinet. Preferably, the air inlet 13 is 2 mesh vents, and a filter screen is installed inside the vents. The air flow reaches the first gap from the air inlet 13 along the gap between the cabinet door and the heat dissipation air flow channel to define an air inlet channel.

The first cabinet is a rear air outlet cabinet, as shown in fig. 16, an air outlet 14 is provided on a rear door of the cabinet, a fan is provided in the air outlet 14, and an air flow is discharged from the heat dissipation air flow channel, and flows to the air outlet 14 through the air deflector assembly 8 to define an exhaust channel. The rack of back air-out is for avoiding the air current to rise to the top after the gyration forms local swirl air current, has installed the aviation baffle arc at the equipment top, and the arc can effectual guide air current direction, and the air current flows to the back door direction under the guide of arc.

The second type is a top-outlet cabinet, as shown in fig. 17, a fan and a cover plate are arranged on a top plate 11 to form an air outlet 14, and the airflow is discharged from the heat-dissipating airflow channel, continues to flow upwards, and is discharged out of the cabinet through the fan and the cover plate.

Preferably, in this application, a fan unit is arranged at the middle position of the cabinet in the heat dissipation airflow channel, a fan unit is arranged at the air outlet in a matching manner, and the heat dissipation requirement of the whole cabinet can be met by combining the two fan units. Through the design of independent heat dissipation airflow channel in the rack, the utilization ratio of the intake is greatly improved, and under the premise of ensuring the same heat dissipation effect, the required number of fans is reduced, so that the utilization ratio of the space in the rack is improved.

In addition, the heat dissipation channel of this application strengthens initiative radiating effect under the condition that uses fan unit, under no fan's state, also can realize the normal operating of rack 24 hours under the natural heat dissipation state.

In summary, from the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: 1. the enclosed wall, the panel and the back plate inside the cabinet form a circumferential enclosed space, flexible layout of various instrument control devices in the cabinet can be realized by adjusting the positions of the panel or the back plate, and the design influence of the change of the device layout on a heat dissipation structure is small; 2. the heat dissipation airflow channel is a single-path air channel, the sealing performance is good, the air guide plate assembly is arranged, smoothness of airflow at each position in the heat dissipation airflow channel can be guaranteed, heat dissipation is uniform, and influences of airflow backflow, turning back and the like are reduced; 3. the first air flow channel is a narrow gap, so that a narrow pipe effect can be formed, the backflow of air flow can be effectively prevented, and the flow rate of the air flow is increased; 4. according to the heat dissipation device, the independent heat dissipation airflow channel is designed in the cabinet, so that the utilization rate of the air intake is greatly improved, and the number of required fans is reduced on the premise of ensuring the same heat dissipation effect, so that the utilization rate of the space in the cabinet is improved; 5. the heat dissipation channel can realize normal operation of the cabinet for 24 hours in a fan-free state.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. An instrument control equipment cabinet, comprising a cabinet housing (1), wherein a closed wall (2) and a back plate (4) are arranged in the cabinet housing (1), the back plate (4) is connected with the closed wall (2), and the instrument control equipment (3) is connected with the closed wall (2) through a panel (31) thereof, characterized in that: the panel (31), at least one part of the closed wall (2) and the back plate (4) are arranged in a surrounding mode to form a circumferential closed space (5) so as to limit a heat dissipation airflow channel (6) of the cabinet.

2. The cabinet of claim 1, wherein: the instrumentation and control device (3) further comprises a lateral face (32) and a rear face (33), the heat dissipation air flow channel (6) being formed inside the circumferential enclosure (5) outside the lateral face (32) and the rear face (33).

3. The cabinet of claim 2, wherein: a first air flow channel (61) is formed outside the side face (32) and a second air flow channel (62) is formed outside the rear face (33) in the circumferential closed space (5), and the first air flow channel (61) and/or the second air flow channel (62) form the heat dissipation air flow channel (6).

4. The cabinet of claim 1, wherein: appearance accuse equipment (3) still include top surface (34) and bottom surface (35), top surface (34) with bottom surface (35) are the fretwork board, the fretwork board with inside formation of appearance accuse equipment (3) heat dissipation air current passageway (6).

5. The cabinet of any one of claims 1-4, wherein: -a plurality of circumferential enclosures (5) in the vertical direction along the enclosure wall (2), the plurality of circumferential enclosures (5) each having a heat dissipating airflow channel (6) as claimed in any one of claims 1-4.

6. The cabinet of claim 1, wherein: and a fan unit (7) is further arranged in the circumferential closed space (5), and the fan unit (7) provides flowing power for the airflow in the heat dissipation airflow channel (6).

7. The cabinet of claim 1, wherein: the top of the cabinet also comprises an air deflector assembly (8), and the air deflector assembly (8) is a curved plate protruding upwards.

8. The cabinet of claim 1, wherein: the cabinet shell (1) comprises a top plate (11) and a bottom plate (12), and the closed wall (2) extends in the vertical direction and is connected with the top plate (11) and the bottom plate (12).

9. The cabinet of claim 1, wherein: the instrument control equipment (3) is located in the heat dissipation airflow channel (6).

10. The cabinet of claim 1, wherein: the bottom of the cabinet shell (1) also comprises an air inlet (13).

11. The cabinet of claim 1, wherein: the top or the rear part of the cabinet shell (1) also comprises an air outlet (14).

Images