Control cabinet

Abstract

The invention discloses a control cabinet. The control cabinet comprises a cabinet body and a heat dissipation device, the cabinet body is provided with a mounting hole; the heat dissipation device comprises a heat dissipation block and an air blowing component, the heat dissipation block is clamped in the mounting hole, one side of the heat dissipation block faces the interior of the cabinet body through the mounting hole, the other side of the heat dissipation block is located on the outer side of the cabinet body, the heat dissipation block is hollow and vertically through to form a ventilation flow channel, and the air blowing component is arranged at the upper end of the heat dissipation block. The inner wall of one side, back to the cabinet body, of the ventilation flow channel protrudes to form an arc-shaped part. The heat generated during the operation of the components is transmitted to the heat dissipation plate, and then the heat on the heat dissipation plate is dissipated to the outside through the air blowing part, so that the temperature of the components in the cabinet body is reduced in time. Besides, through the installation hole in the cabinet body, the heat dissipation block is clamped in the installation hole, one end of the heat dissipation block extends into the cabinet body, and through sealing between the heat dissipation block and the installation hole, gas, dust and the like are prevented from entering the cabinet body, damage to components and parts is avoided, explosion in the cabinet body is avoided, and the safety risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical cabinet technology, and in particular to a control cabinet. Background Technology

[0002] As the requirements for explosion-proof and flameproof control cabinets become increasingly stringent in places with flammable and explosive gases or dust, such as the petroleum, chemical, coal mining, and powder processing industries, some electrical components inside the control cabinet will generate heat during use, which will cause the temperature inside the control cabinet to rise. At the same time, flammable gases and dust can easily enter the control cabinet, posing a safety risk of explosion. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a control cabinet that can dissipate heat from the internal components in a timely manner, enabling the control cabinet to be used in flammable and explosive environments, preventing dust and other contaminants from entering the control cabinet, while simultaneously achieving heat dissipation and reducing safety risks.

[0004] According to the first aspect of the present invention, the control cabinet includes: a cabinet body and a heat dissipation device; the cabinet body has mounting holes; the heat dissipation device includes a heat sink and a blower component, the heat sink is snapped into the mounting hole, one side of the heat sink faces into the cabinet body through the mounting hole, the other side of the heat sink is located on the outside of the cabinet body, the heat sink is hollow inside and vertically connected to form a ventilation channel, the blower component is disposed at the upper end of the heat sink, the blower component cooperates with the ventilation channel to dissipate the heat of the heat sink, and the inner wall of the ventilation channel facing away from the cabinet body protrudes to form an arc-shaped portion.

[0005] In some embodiments of the present invention, the heat sink protrudes from one side facing the cabinet to form a mounting portion, and symmetrical protrusions on both sides of the mounting portion form snap-fit ​​portions. The snap-fit ​​portions abut against the end face of the mounting hole. The snap-fit ​​portions are provided with a plurality of first screws, and the plurality of first screws pass through the snap-fit ​​portions and are threadedly connected to the cabinet.

[0006] In some embodiments of the present invention, the mounting portion is provided with a heat sink plate, and a heat-conducting layer is provided between the heat sink plate and the mounting portion, and the heat-conducting layer is in contact with the heat sink plate and the mounting portion respectively.

[0007] In some embodiments of the present invention, the air blowing component includes a mounting box and a fan, the mounting box is vertically connected, the fan is disposed at the upper end of the mounting box, the mounting box is disposed on the upper side of the heat sink, and the interior of the mounting box is connected to the ventilation channel.

[0008] In some embodiments of the present invention, both ends of the ventilation duct are provided with grilles.

[0009] In some embodiments of the present invention, the cabinet is provided with a cabinet door, the cabinet is open, and the opening of the shell protrudes radially to form a first connecting portion. The first connecting portion extends circumferentially along the opening of the cabinet, the cabinet door covers the opening of the cabinet, and the cabinet door is fastened to the first connecting portion.

[0010] In some embodiments of the present invention, the cabinet door has multiple second connecting portions protruding from its four sides. Each second connecting portion is provided with a second screw, which passes through the second connecting portion and is threadedly connected to the first connecting portion.

[0011] Compared with the prior art, the control cabinet of this invention has the following advantages: by mounting components onto a heat sink, the heat generated by the components during operation is transferred to the heat sink, and then the heat on the heat sink is dissipated to the outside by a blower, thus reducing the temperature of the components inside the cabinet in a timely manner; in addition, the heat sink is snapped into the mounting holes on the cabinet, with one end of the heat sink extending into the cabinet, and the seal between the heat sink and the mounting hole prevents gases, dust, etc. from entering the cabinet, avoiding damage to the components and preventing explosions inside the cabinet. It is suitable for use in petroleum, chemical, coal mining, powder processing and other industries, achieving heat dissipation while preventing explosions and reducing safety risks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the control cabinet according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the control cabinet according to an embodiment of the present invention; Figure 3 This is an assembly diagram of the heat sink and the blower component in the control cabinet according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a heat sink in a control cabinet according to an embodiment of the present invention; Explanation of reference numerals in the attached figures: Cabinet body 110; first connecting part 111; arc-shaped part 112; cabinet door 120; second connecting part 121; second screw 122; fan 210; mounting box 220; heat sink 300; ventilation channel 310; heat sink plate 321; heat-conducting layer 322; mounting part 331; snap-fit ​​part 332; grille 340. Detailed Implementation

[0013] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0014] like Figure 1 and Figure 2As shown, the control cabinet of the first aspect of the present invention includes: a cabinet body 110 and a heat dissipation device; the cabinet body 110 has a mounting hole; the heat dissipation device includes a heat dissipation block 300 and a blower component, the heat dissipation block 300 is snapped into the mounting hole, one side of the heat dissipation block 300 faces the inside of the cabinet body 110 through the mounting hole, and the other side of the heat dissipation block 300 is located on the outside of the cabinet body 110. The heat dissipation block 300 is hollow inside and has vertical continuity to form a ventilation channel 310. The blower component is disposed at the upper end of the heat dissipation block 300, and the blower component cooperates with the ventilation channel 310 to dissipate the heat of the heat dissipation block 300.

[0015] The front end of the cabinet 110 is sealed. During installation, the heat sink 300 is snapped into the mounting hole, with one end of the heat sink 300 extending into the cabinet 110, creating a sealed space inside the cabinet 110. This prevents flammable gases and dust from entering the cabinet 110, thus avoiding explosions and reducing safety risks. Screws are used to mount the PCBA board containing components onto the heat sink 321, preventing dust from damaging the components and extending their lifespan. Furthermore, the heat generated by the components during operation is transferred to the heat sink 321. An airflow is then created in the ventilation channel 310 by a blower, continuously carrying away the heat from the heat sink 300 and dissipating the heat from the heat sink 321 to the outside, effectively reducing the temperature of the components inside the cabinet 110. This design achieves both sealing of the cabinet 110 and heat dissipation for the internal components, making it suitable for use in petroleum, chemical, coal mining, and powder processing industries, preventing explosions while simultaneously reducing the temperature inside the cabinet 110.

[0016] Understandably, referring to Figure 4 The inner wall of the ventilation channel 310 facing away from the cabinet 110 protrudes to form an arc-shaped portion 112. After the heat sink 300 absorbs the heat inside the cabinet 110, the end of the heat sink 300 inside the cabinet 110 has a higher temperature, while the end of the heat sink 300 outside the cabinet 110 has a lower temperature. The heat of the heat sink 300 is transferred from inside the cabinet 110 to outside the cabinet 110, allowing the heat inside the cabinet 110 to be transferred to the outside. After the heat is transferred to the protruding arc-shaped portion 112 inside the ventilation channel 310, the heat is dissipated from the middle protrusion to both sides, making the heat of the heat sink 300 evenly distributed, accelerating heat dissipation, and improving the heat dissipation efficiency of the airflow inside the ventilation channel 310.

[0017] Understandably, referring to Figure 2 and Figure 3The heat sink 300 has a mounting portion 331 protruding from the side facing the cabinet 110. Symmetrically, two snap-fit ​​portions 332 protrude from the mounting portion 331. The snap-fit ​​portions 332 abut against the end face of the mounting hole. Multiple first screws are provided on the snap-fit ​​portions 332, all passing through the snap-fit ​​portions 332 and threadedly connected to the cabinet 110. By extending the mounting portion 331 of the heat sink 300 into the cabinet 110 through the mounting hole, and by abutting against the end face of the mounting hole with the snap-fit ​​portion 332, the heat sink 300 is quickly positioned. Then, the multiple first screws engage to lock the heat sink 300 onto the cabinet 110. Additionally, a sealing ring can be installed between the heat sink 300 and the inner wall of the mounting hole to improve the sealing performance between the heat sink 300 and the mounting hole, preventing dust and flammable gases from entering the cabinet 110 through the gap between the heat sink 300 and the mounting hole.

[0018] Understandably, referring to Figure 2 The mounting portion 331 is equipped with a heat sink 321, and a thermally conductive layer 322 is disposed between the heat sink 321 and the mounting portion 331. The thermally conductive layer 322 contacts both the heat sink 321 and the mounting portion 331. Silicone grease is applied between the heat sink 321 and the mounting portion 331, forming the thermally conductive layer 322 between them. The grease enhances the heat transfer efficiency between the heat sink 321 and the mounting portion 331, improving heat dissipation. The heat sink 321 prevents the grease from being applied directly to the PCBA board, thus avoiding interference with its operation.

[0019] Understandably, referring to Figure 3 The air-blowing component includes a mounting box 220 and a fan 210. The mounting box 220 is vertically continuous, and the fan 210 is located at the upper end of the mounting box 220. The mounting box 220 is positioned above the heat sink 300, and its interior is connected to the ventilation channel 310. Installing the fan 210 into the vertically continuous mounting box 220 concentrates the airflow, increases the flow rate, and thus improves the heat dissipation effect. The fan 210, located above the heat sink 300, draws airflow from bottom to top. Air enters the ventilation channel 310 from the lower end of the heat sink 300, passes through the ventilation channel 310, and blows upwards, dissipating the heat from the heat sink 300 outwards. Simultaneously, the upward blowing avoids the dust being stirred up by downward blowing in dusty environments.

[0020] Understandably, referring to Figure 4 Both ends of the ventilation duct 310 are equipped with grilles 340, which can effectively reduce the entry of debris into the ventilation duct 310 and prevent blockage of the ventilation duct 310.

[0021] Understandably, referring to Figure 1The cabinet body 110 is provided with a cabinet door 120. The cabinet body 110 is open, and a first connecting part 111 is formed by radially protruding from the opening of the shell. The first connecting part 111 extends circumferentially along the opening of the cabinet body 110. The cabinet door 120 covers the opening of the cabinet body 110, and the cabinet door 120 is securely connected to the first connecting part 111. The first connecting part 111, which extends circumferentially, facilitates the secure connection between the cabinet door 120 and the cabinet body 110, reducing installation difficulty and improving installation efficiency.

[0022] Understandably, referring to Figure 1 The cabinet door 120 has multiple protruding second connecting portions 121 on its four sides. Each second connecting portion 121 is equipped with a second screw 122, which passes through the second connecting portion 121 and is threadedly connected to the first connecting portion 111. By tightening the second screws 122 through the multiple second connecting portions 121, the four sides of the cabinet door 120 are evenly and tightly fitted against the opening of the cabinet door 120, further improving the sealing performance between the cabinet door 120 and the cabinet body 110.

[0023] In summary, this embodiment of the invention provides a control cabinet that, by mounting components onto a heat sink 321, transfers the heat generated by the components during operation to the heat sink 321. A blower then dissipates the heat from the heat sink 321 to the outside, effectively reducing the temperature of the components inside the cabinet 110. Furthermore, a heat sink 300 is secured to the mounting holes on the cabinet 110, with one end extending into the cabinet 110. The seal between the heat sink 300 and the mounting holes prevents gases and dust from entering the cabinet 110, thus avoiding damage to the components and preventing explosions within the cabinet 110. This design is suitable for use in petroleum, chemical, coal mining, and powder processing industries, achieving heat dissipation while preventing explosions and reducing safety risks.

[0024] The above description is only a preferred embodiment of the present invention. It should be noted that for ordinary counters in the art, several improvements and substitutions can be made without departing from the counting principle of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. Control cabinet, characterized in that The utility model relates to a cabinet cooling device, including have: The cabinet body is provided with mounting hole; The heat dissipation device includes a heat dissipation block and a blowing component, the heat dissipation block is clamped in the mounting hole, one side of the heat dissipation block faces the inside of the cabinet body through the mounting hole, the other side of the heat dissipation block is located at the outside of the cabinet body, the heat dissipation block is hollow inside and penetrates up and down to form a ventilation flow channel, the blowing component is arranged at the upper end of the heat dissipation block, the blowing component cooperates with the ventilation flow channel to dissipate the heat of the heat dissipation block, and the inner wall of the side of the ventilation flow channel away from the cabinet body is protruded to form an arc-shaped part.

2. The control cabinet of claim 1, wherein, The side of the heat dissipation block facing the cabinet body is protruded to form a mounting part, the two symmetrical sides of the mounting part are protruded to form clamping parts, the clamping parts abut against the end face of the mounting hole, the clamping parts are provided with a plurality of first screws, and the plurality of first screws are all threadedly connected with the cabinet body through the clamping parts.

3. The control cabinet of claim 2, wherein, The mounting part is provided with a heat dissipation plate, and a heat conduction layer is arranged between the heat dissipation plate and the mounting part.

4. The control cabinet of claim 1, wherein, The blowing component includes a mounting box and a fan, the mounting box penetrates up and down, the fan is arranged at the upper end of the mounting box, the mounting box is arranged at the upper side of the heat dissipation block, and the inside of the mounting box communicates with the ventilation flow channel.

5. The control cabinet of claim 1, wherein, Both ends of the ventilation flow channel are provided with grilles.

6. The control cabinet of claim 1, wherein, The cabinet body is provided with a cabinet door, the cabinet body is open, the opening of the shell is radially protruded to form a first connecting part, the first connecting part extends along the circumference of the opening of the cabinet body, the cabinet door covers the opening of the cabinet body, and the cabinet door is tightly connected with the first connecting part.

7. The control cabinet of claim 6, wherein, The four sides of the cabinet door are protruded to form a plurality of second connecting parts, the second connecting parts are provided with second screws, and the second screws are threadedly connected with the first connecting part through the second connecting parts.

Images