Control cubicle cooling and heat dissipation device, control cubicle and system

Abstract

The utility model discloses a control cubicle cooling and heat dissipation device, a control cubicle and a system, the control cubicle cooling and heat dissipation device comprises a cubicle body and a flow guide plate, the flow guide plate is arranged above the cubicle body, and a set distance exists between the flow guide plate and the top of the cubicle body; the side face of the flow guide plate is a flow guide face which can guide air between the cabinet body and the flow guide plate. The guide plate can prevent sunlight from directly drying the control cubicle, and can guide air to the top of the cubicle body to dissipate heat of the cubicle body, thereby reducing the temperature in the cubicle body.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, and in particular to a cooling and heat dissipation device for a control cabinet, a control cabinet and a system. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] The control cabinet of a smart substation usually integrates a large number of high-precision control modules and various discrete electronic components with high heat generation. These devices have high requirements for the working environment temperature and humidity. Once the temperature inside the control cabinet is too high, it will seriously affect the control accuracy and control stability, and even cause the components to burn, resulting in accidents such as equipment malfunction and refusal to operate. The control cabinet can only be used normally when the temperature inside is between -10 and 50°C. The control cabinet is usually cooled by installing air conditioners inside, but due to the limitation of the internal space of the control cabinet, the air conditioning power is often insufficient, and the cooling effect on the control cabinet is limited.

[0004] However, the station control cabinet is arranged outdoors and is greatly affected by the ambient temperature. In the midsummer season, the temperature inside the cabinet will remain high due to direct sunlight. At noon on a sunny day, the highest temperature inside the cabinet may reach more than 55 degrees Celsius. Even if the air conditioner is running continuously, the temperature inside the cabinet cannot meet the standard requirement of less than 50 degrees Celsius. Therefore, a structure is needed to regulate the temperature of the control cabinet to prevent the temperature inside the control cabinet from being higher than the standard working temperature. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a cooling and heat dissipation device for a control cabinet, a control cabinet and a system. The guide plate can not only prevent the control cabinet from being directly exposed to sunlight, but also guide the air to the top of the cabinet to dissipate the heat of the cabinet, thereby reducing the temperature inside the cabinet.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] On the first aspect, a cooling and heat dissipation device for a control cabinet is proposed, including a cabinet body and a guide plate, wherein the guide plate is arranged above the cabinet body, and there is a set distance between the guide plate and the top of the cabinet body; the side of the guide plate is a guide surface, and the guide surface can direct the wind between the cabinet body and the guide plate.

[0008] Furthermore, a reflective heat-insulating coating is provided on the top surface of the guide plate.

[0009] Furthermore, the reflective heat-insulating coating adopts hollow ceramic microsphere material.

[0010] Furthermore, the guide plate is connected to the cabinet body via bolts.

[0011] Furthermore, the bolts are epoxy resin bolts.

[0012] Furthermore, the guide plate is connected to the top of the cabinet via a plurality of bolts, and the plurality of bolts are respectively connected to four ends of the top of the cabinet.

[0013] Furthermore, the included angle between the guide surface and the top surface of the guide plate is an acute angle.

[0014] In a second aspect, a control cabinet is proposed, including a control cabinet cooling and heat dissipation device proposed in the first aspect.

[0015] In a third aspect, a cooling and heat dissipation system for a control cabinet is proposed, including a cooling and heat dissipation device for a control cabinet proposed in the first aspect.

[0016] In a fourth aspect, a control cabinet system is proposed, including a control cabinet cooling and heat dissipation device proposed in the first aspect.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model installs a guide plate above the cabinet body, which can not only shade the cabinet body through the guide plate to prevent the sun from heating up the inside of the cabinet body, but also guide the air to the top of the cabinet body through the guide plate. The air flows through the top of the cabinet body and takes away part of the heat in the cabinet body, which is beneficial to the heat dissipation of the cabinet, thereby reducing the temperature inside the cabinet.

[0019] 2. The utility model sets a reflective heat-insulating coating on the top surface of the guide plate, which can block direct sunlight and reflect the heat of sunlight, further preventing the sun from heating up the inside of the cabinet, thereby effectively reducing the extreme temperature inside the cabinet, so that the temperature inside the cabinet is not higher than the maximum temperature of the normal operation of the cabinet.

[0020] 3. The utility model connects the guide plate to the cabinet body through epoxy resin bolts, which can effectively prevent the heat of the guide plate from being transferred to the cabinet body through the bolts, thereby preventing the temperature inside the cabinet body from rising.

[0021] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] Figure 1 This is the main view of the existing control cabinet structure;

[0024] Figure 2 This is the side view of the existing control cabinet structure;

[0025] Figure 3 It is a front view of the device disclosed in the embodiment;

[0026] Figure 4 A side view of a device according to an embodiment of the present invention is shown.

[0027] Among them: 1. cabinet body, 2. eye bolt, 3. epoxy resin bolt, 4. guide plate, 5. reflective thermal insulation coating, 6. guide surface. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Example 1

[0032] In this embodiment, a cooling and heat dissipation device for a control cabinet is disclosed, such as Figure 3 , Figure 4 As shown, it includes a cabinet body 1 and a guide plate 4, the guide plate 4 is arranged above the cabinet body 1, and there is a set distance between the guide plate 4 and the top of the cabinet body 1; the side of the guide plate 4 is a guide surface 6, and the guide surface 6 can lead the wind between the cabinet body 1 and the guide plate 4.

[0033] The guide plate 4 is installed on the top of the cabinet body 1 of the control cabinet to block the sunlight from shining on the top of the cabinet body 1.

[0034] Guide surfaces 6 are provided on the four sides of the guide plate 4, and the angle between each guide surface and the top surface of the guide plate is an acute angle. According to the Bernoulli principle of air flow, in narrow places, the cross-sectional area becomes smaller and the air flow velocity increases, thereby directing the wind between the cabinet 1 and the guide plate 4, thereby intensifying the air flow between the guide plate 4 and the top of the cabinet 1, which is beneficial to the cooling and heat dissipation of the control cabinet.

[0035] Preferably, the guide surface 6 connects the top surface and the bottom surface of the guide plate 4, and the angle between the guide surface 6 and the top plate of the guide plate 4 is 30°.

[0036] In this embodiment, a reflective heat-insulating coating 5 is also provided on the top surface of the guide plate 4. The reflective heat-insulating coating is made of hollow ceramic microspheres.

[0037] The reflective heat-insulating coating 5 provided on the guide plate 4 has the following characteristics:

[0038] 1. Reflective insulation, mainly reflecting visible light and infrared energy of 400-2500nm, preventing the heat of the sun from accumulating and heating up on the surface of the guide plate 4.

[0039] 2. Barrier insulation: The reflective heat insulation coating 5 made of hollow ceramic microspheres is used as the heat insulation material, and a dense vacuum layer is formed on the top surface of the guide plate 4. The thermal conductivity is extremely low (0.00122W / m·K), which can effectively prevent heat from penetrating the coating and reduce the heat exchange between the guide plate 4 and the top of the guide plate 4.

[0040] 3. Radiant heat insulation: a layer of spectrally selective coating with special functions is formed on the top surface of the guide plate 4. Through radiation, the heat of the absorbed sunlight is emitted into the outer space in the form of infrared rays of a certain wavelength, thereby achieving a good heat insulation and cooling effect.

[0041] The guide plate 4 of this embodiment is connected to the cabinet 1 via bolts, and the guide plate 4 is fixed above the cabinet 1 .

[0042] In order to reduce the heat on the top surface of the guide plate 4 and transfer it to the cabinet body 1 through the bolts, the bolts of this embodiment are epoxy resin bolts 3. The epoxy resin bolts 3 have a low thermal conductivity and are a poor conductor of heat, which can prevent the heat on the top surface of the guide plate 4 from being transferred to the cabinet body 1 of the control cabinet.

[0043] In order to ensure the stability of the connection of the guide plate 4, the guide plate 4 is limited to be connected to the top of the cabinet 1 through multiple bolts, and the multiple bolts are respectively connected to the four ends of the top of the cabinet 1. By setting more bolts to provide support and fixation for the guide plate 4, it is ensured that the guide plate 4 still has good stability in a strong wind environment.

[0044] When the present embodiment is to install a guide plate 4 above the existing control cabinet, Figure 1 , Figure 2 As shown, four eyebolts 2 are arranged on the top of the existing control cabinet. When installing the guide plate 4, the four eyebolts 2 are removed and replaced with four epoxy resin bolts 3. The guide plate 4 is fixed to the cabinet body by the four epoxy resin bolts 3. The modification of the existing control cabinet is completed without changing the structure of the existing control cabinet, and the modification cost is low.

[0045] The present embodiment discloses a cooling and heat dissipation device for a control cabinet. A guide plate is installed on the top of the control cabinet to block direct sunlight from shining on the top. The side of the guide plate is set as a guide surface to intensify the air flow between the guide plate and the top of the control cabinet, which is beneficial to the heat dissipation of the control cabinet. The guide plate is connected to the cabinet body by epoxy resin bolts to block the heat of the guide plate from being transferred to the control cabinet body. A reflective heat-insulating coating is set on the top surface of the guide plate to block direct sunlight and reflect the heat of the sunlight, thereby achieving the purpose of reducing the internal limit temperature of the control cabinet body and making it not exceed the normal working temperature upper limit of the control cabinet, thereby ensuring the controllable working environment of the control cabinet of the smart substation and the safe and stable operation of various devices and equipment.

[0046] Example 2

[0047] In this embodiment, a control cabinet is disclosed, including a control cabinet cooling and heat dissipation device disclosed in Example 1.

[0048] Example 3

[0049] In this embodiment, a cooling and heat dissipation system for a control cabinet is disclosed, including a cooling and heat dissipation device for a control cabinet disclosed in Example 1.

[0050] Example 4

[0051] In this embodiment, a control cabinet system is disclosed, including a control cabinet cooling and heat dissipation device disclosed in Example 1.

[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0053] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A cooling and heat dissipation device for a control cabinet, characterized in that: It includes a cabinet body and a guide plate, wherein the guide plate is arranged above the cabinet body, and there is a set distance between the guide plate and the top of the cabinet body; the side of the guide plate is a guide surface, and the guide surface can guide the wind between the cabinet body and the guide plate.

2. A cooling and heat dissipation device for a control cabinet as claimed in claim 1, characterized in that: A reflective heat-insulating coating is provided on the top surface of the guide plate.

3. A cooling and heat dissipation device for a control cabinet as claimed in claim 2, characterized in that: The reflective heat-insulating coating is made of hollow ceramic microspheres.

4. A cooling and heat dissipation device for a control cabinet as claimed in claim 1, characterized in that: The guide plate is connected to the cabinet body by bolts.

5. A cooling and heat dissipation device for a control cabinet as claimed in claim 4, characterized in that: The bolts are epoxy resin bolts.

6. The cooling and heat dissipation device for a control cabinet as claimed in claim 1, characterized in that: The guide plate is connected to the top of the cabinet through a plurality of bolts, and the plurality of bolts are respectively connected to four ends of the top of the cabinet.

7. The cooling and heat dissipation device for a control cabinet as claimed in claim 1, characterized in that: The included angle between the guide surface and the top surface of the guide plate is an acute angle.

8. A control cabinet, characterized in that: It comprises a cooling and heat dissipation device for a control cabinet as described in any one of claims 1-7.

9. A control cabinet system, characterized in that: It comprises a cooling and heat dissipation device for a control cabinet as described in any one of claims 1-7.

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