High-heat-dissipation alternating-current frequency conversion speed regulation cabinet

Abstract

The utility model discloses a high-heat-dissipation alternating-current frequency conversion speed regulation cabinet which comprises a main body mechanism. The main body mechanism comprises a cabinet body, a sealing door installed on the cabinet body in a hinged mode, an outer shell arranged on the outer side of the cabinet body, air blowing pieces symmetrically installed at the top end of the cabinet body, heat dissipation plates symmetrically installed on the two sides of the cabinet body, and a monitoring assembly installed at the top end of the outer shell and stretching into an inner cavity of the outer shell. The box body is fixed to the bottom end of the outer shell, the fire extinguishing assembly is installed in an inner cavity of the box body and communicates with an inner cavity of the outer shell, the cabinet body is used for installing and protecting the variable-frequency electrical equipment, the sealing door is used for controlling opening and closing of the cabinet body, the variable-frequency electrical equipment is convenient to maintain, and the outer shell is arranged on the outer side of the cabinet body. The inner top wall of the cabinet body is arranged in an opposite inclined plane mode, the air blowing piece is used for discharging air in the inner cavity of the cabinet body into the inner cavity of the outer shell, and the high-heat-dissipation alternating-current frequency conversion speed regulation cabinet has the advantages of being high in heat dissipation efficiency and good in fireproof performance.

Description

Technical Field

[0001] This utility model relates to the field of AC variable frequency speed control cabinet technology, specifically a high heat dissipation AC variable frequency speed control cabinet. Background Technology

[0002] AC variable frequency speed control is used in control cabinets that drive power devices with AC frequency converters. Ordinary power cabinets or control cabinets are changed from traditional drive methods to variable frequency drive methods. In short, control cabinets that use frequency converters to drive power devices have become the currently promoted power drive method due to their good starting performance, speed regulation performance and energy saving effect.

[0003] The existing AC variable frequency speed control cabinets have the following drawbacks during use: poor heat dissipation. The electrical components inside the cabinet generate a lot of heat during operation, which is difficult to dissipate, resulting in high internal temperatures and affecting the service life of the electrical components. Therefore, there is room for improvement. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a high heat dissipation AC variable frequency speed control cabinet, comprising: a main body, the main body including a cabinet, a sealing door hinged to the cabinet, an outer shell disposed on the outside of the cabinet, blowers symmetrically disposed on the top of the cabinet, heat dissipation plates symmetrically disposed on both sides of the cabinet, a monitoring component disposed on the top of the outer shell and extending into the inner cavity of the outer shell, a box fixed to the bottom of the outer shell, and a fire extinguishing component disposed in the inner cavity of the box and communicating with the inner cavity of the outer shell.

[0006] The heat sink includes a heat-conducting plate fixed to the inner side wall of the outer casing and heat exchange fins fixed in an array on the heat-conducting plate. The inner cavity of the heat-conducting plate is provided with a serpentine flow channel.

[0007] In a preferred embodiment, the present invention can be further configured such that the blower includes an exhaust pipe installed at the top of the cabinet and connecting the inner cavity of the cabinet and the inner cavity of the outer shell, and a high-speed fan installed on the inner wall of the exhaust pipe.

[0008] In a preferred embodiment, the present invention can be further configured such that the bottom end of the cabinet has multiple through holes arranged in an array.

[0009] In a preferred embodiment, the present invention can be further configured such that: a water inlet pipe is provided on one side of the heat-conducting plate, which is connected to one end of the serpentine flow channel, and a water outlet pipe is provided, which is connected to the other end of the serpentine flow channel.

[0010] In a preferred embodiment, the present invention may be further configured such that the monitoring component includes a temperature sensor fixed to the top of the outer casing and extending into the inner cavity of the outer casing, and a smoke sensor mounted on the top of the outer casing and extending into the inner cavity of the outer casing.

[0011] In a preferred embodiment, the present invention may be further configured such that the fire extinguishing assembly includes a gas cylinder installed on the inner wall of the housing, a connecting pipe connecting the gas cylinder to the bottom of the inner cavity of the outer shell, and an electric valve installed on the connecting pipe.

[0012] In a preferred embodiment, the present invention can be further configured such that the inner cavity of the gas tank is filled with high-pressure inert gas.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, an outer shell is provided on the outside of the cabinet, and a heat dissipation plate is installed between the two sides of the cabinet and the inner wall of the outer shell. The heat dissipation plate consists of a heat-conducting plate fixed on the inner wall of the outer shell and heat exchange fins fixed in an array on the heat-conducting plate. At the same time, a blower is installed at the top of the cabinet, and through holes are opened in an array at the bottom of the cabinet. Through the above arrangement, the blower exhausts the air in the inner cavity of the cabinet into the top of the outer shell, and then enters between the heat exchange fins from both sides. The heat in the air exchanges heat with the heat exchange fins, and the heat is transferred to the heat-conducting plate through the heat exchange fins. In addition, a serpentine flow channel is opened in the inner cavity of the heat-conducting plate. Cooling water enters the serpentine flow channel and carries away the heat on the heat-conducting plate. The cooled air enters the bottom of the inner cavity of the outer shell, and then re-enters the inner cavity of the cabinet through the through holes at the bottom of the cabinet. This can efficiently and stably dissipate heat and cool the inner cavity of the cabinet, effectively avoiding the situation of excessively high temperature in the inner cavity of the cabinet.

[0015] 2. In this utility model, a monitoring component is installed at the top of the outer shell to monitor the air temperature inside the cabinet cavity. This allows for monitoring of smoke when electrical equipment inside the cabinet catches fire. Additionally, a box is installed at the bottom of the outer shell, and a fire extinguishing component is installed inside the box cavity. When the monitoring component detects smoke in the air inside the cabinet cavity, the fire extinguishing component is activated, introducing inert gas into the cabinet cavity to reduce the oxygen content and extinguish the fire, further improving the safety performance of the cabinet. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the heat sink structure of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the heat-conducting plate of this utility model.

[0020] Figure label:

[0021] 100. Main structure; 110. Cabinet; 111. Through hole; 120. Sealed door; 130. Outer shell; 140. Blower; 141. Exhaust duct; 142. High-speed fan; 150. Heat sink; 151. Heat conduction plate; 1511. Serpentine flow channel; 1512. Water inlet pipe; 1513. Water outlet pipe; 152. Heat exchange fins; 160. Monitoring components; 161. Temperature sensor; 162. Smoke sensor; 170. Cabinet; 180. Fire extinguishing components; 181. Gas tank; 182. Connecting pipes; 183. Electric valve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] Some embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] Example 1:

[0025] Combination Figure 1-4 As shown, this embodiment provides a high heat dissipation AC variable frequency speed control cabinet, including: main body 100.

[0026] The main structure 100 includes a cabinet 110, a sealing door 120 hinged to the cabinet 110, an outer shell 130 located on the outside of the cabinet 110, a blower 140 symmetrically installed on the top of the cabinet 110, a heat dissipation plate 150 symmetrically installed on both sides of the cabinet 110, a monitoring component 160 installed on the top of the outer shell 130 and extending into the inner cavity of the outer shell 130, a box 170 fixed to the bottom of the outer shell 130, and a fire extinguishing component 180 installed in the inner cavity of the box 170 and communicating with the inner cavity of the outer shell 130.

[0027] The cabinet 110 is used to install the frequency converter electrical equipment and also provides protection for it. The sealing door 120 is used to control the opening and closing of the cabinet 110 to facilitate the maintenance of the frequency converter electrical equipment.

[0028] The outer shell 130 is located outside the cabinet 110, and its inner top wall is set with a relative slope. The blower 140 is used to exhaust the air in the inner cavity of the cabinet 110 into the inner cavity of the outer shell 130. It includes an exhaust pipe 141 installed at the top of the cabinet 110 and connecting the inner cavity of the cabinet 110 and the inner cavity of the outer shell 130, and a high-speed fan 142 installed on the inner wall of the exhaust pipe 141. The exhaust pipe 141 connects the inner cavity of the cabinet 110 and the top of the inner cavity of the outer shell 130. The high-speed fan 142 faces the inner top wall of the outer shell 130 and is used to draw out the hot air in the inner cavity of the cabinet 110 and send it into the bottom of the inner cavity of the outer shell 130, and make it flow along the inner top wall of the outer shell 130 to both sides into the heat sink 150.

[0029] The heat sink 150 is used to dissipate heat and cool hot air. The heat sink 150 includes a heat-conducting plate 151 fixed on the inner side wall of the outer shell 130 and heat exchange fins 152 fixed in an array on the heat-conducting plate 151. One end of the heat exchange fin 152 is fixed on the heat-conducting plate 151, and the other end is close to the outer side of the cabinet 110, so that airflow is formed between adjacent heat sink fins to facilitate the passage of hot air. When hot air passes through the heat exchange fins 152, heat can be transferred to the heat exchange fins 152 and then transferred along the heat exchange fins 152 to the heat-conducting plate 151, thereby reducing the air temperature.

[0030] The bottom of the cabinet 110 has an array of through holes 111. When the cooled air enters the bottom of the inner cavity of the outer shell 130, it returns to the inner cavity of the cabinet 110 through the through holes 111, thereby effectively preventing the inner cavity of the cabinet 110 from becoming too hot.

[0031] The inner cavity of the heat-conducting plate 151 is provided with a serpentine flow channel 1511. A water inlet pipe 1512 is provided on one side of the heat-conducting plate 151, which is connected to one end of the serpentine flow channel 1511 for supplying cooling water into the serpentine flow channel 1511. At the same time, a water outlet pipe 1513 is provided, which is connected to the other end of the serpentine flow channel 1511 for discharging the cooling water after absorbing heat. Through this arrangement, when the cooling water passes through the serpentine flow channel 1511, it can absorb the heat on the heat-conducting plate 151 and carry away the heat on the heat-conducting plate 151 through circulation.

[0032] The monitoring component 160 includes a temperature sensor 161 fixed to the top of the housing 130 and extending into the inner cavity of the housing 130, and a smoke sensor 162 installed on the top of the housing 130 and extending into the inner cavity of the housing 130. The temperature sensor 161 is used to monitor the temperature of the air inside the cabinet 110 in real time, and the smoke sensor 162 is used to monitor whether the electrical equipment inside the cabinet 110 is on fire.

[0033] The enclosure 170 is used to install the fire extinguishing assembly 180. The fire extinguishing assembly 180 includes a gas cylinder 181 installed on the inner wall of the enclosure 170, a connecting pipe 182 connecting the gas cylinder 181 to the bottom of the inner cavity of the outer shell 130, and an electric valve 183 installed on the connecting pipe 182. The inner cavity of the gas cylinder 181 is filled with high-pressure inert gas. When the smoke sensor 162 detects combustion smoke, the electric valve 183 is opened, so that the inert gas in the inner cavity of the gas cylinder 181 is sent into the bottom of the inner cavity of the outer shell 130 through the connecting pipe 182, and then enters the inner cavity of the cabinet 110 through the through hole 111, reducing the oxygen content in the inner cavity of the cabinet 110 and realizing fire extinguishing.

[0034] The working principle and usage process of this utility model are as follows: During use, the high-speed fan 142 starts, drawing hot air from the inner cavity of the cabinet 110 and discharging it into the top of the inner cavity of the outer shell 130. The hot air flows along the inner top wall of the outer shell 130 to both sides, entering the airflow channel between the heat exchange fins 152 and the outer side of the cabinet 110. As the hot air passes through the heat exchange fins 152, heat is transferred to them, lowering the temperature. The cooled air then enters the bottom of the inner cavity of the outer shell 130 and re-enters the inner cavity of the cabinet 110 through the through-hole 111 at the bottom of the cabinet 110. This creates a circulation, preventing the temperature inside the cabinet 110 from becoming too high. At the same time, cooling water is sent into the serpentine flow channel 1511 through the inlet pipe 1512. The cooling water flows in the serpentine flow channel 1511, carrying away the heat from the heat conduction plate 151 and the heat dissipation fins, and then is discharged through the outlet pipe 1513. In addition, when the smoke sensor 162 detects smoke, it opens the electric valve 183. At this time, the inert gas in the gas tank 181 is sent into the bottom of the inner cavity of the outer shell 130 through the connecting pipe 182, and then enters the inner cavity of the cabinet 110 through the through hole 111, reducing the oxygen content in the inner cavity of the cabinet 110 and achieving fire extinguishing.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-heat-dissipation AC variable frequency speed control cabinet, comprising: The main structure (100) is characterized in that the main structure (100) includes a cabinet (110), a sealing door (120) hinged to the cabinet (110), an outer shell (130) disposed on the outside of the cabinet (110), a blower (140) symmetrically installed on the top of the cabinet (110), a heat sink (150) symmetrically installed on both sides of the cabinet (110), a monitoring component (160) installed on the top of the outer shell (130) and extending into the inner cavity of the outer shell (130), a box (170) fixed to the bottom of the outer shell (130), and a fire extinguishing component (180) installed in the inner cavity of the box (170) and communicating with the inner cavity of the outer shell (130); The heat sink (150) includes a heat-conducting plate (151) fixed on the inner wall of the outer shell (130) and heat exchange fins (152) fixed in an array on the heat-conducting plate (151). The inner cavity of the heat-conducting plate (151) is provided with a serpentine flow channel (1511).

2. The high heat dissipation AC variable frequency speed control cabinet according to claim 1, characterized in that, The blower (140) includes an exhaust pipe (141) installed at the top of the cabinet (110) and connecting the inner cavity of the cabinet (110) and the inner cavity of the outer shell (130), and a high-speed fan (142) installed on the inner wall of the exhaust pipe (141).

3. The high heat dissipation AC variable frequency speed control cabinet according to claim 1, characterized in that, The bottom of the cabinet (110) has multiple through holes (111) arranged in an array.

4. The high heat dissipation AC variable frequency speed control cabinet according to claim 1, characterized in that, The heat-conducting plate (151) has an inlet pipe (1512) on one side that is connected to one end of the serpentine flow channel (1511), and an outlet pipe (1513) that is connected to the other end of the serpentine flow channel (1511).

5. The high heat dissipation AC variable frequency speed control cabinet according to claim 1, characterized in that, The monitoring component (160) includes a temperature sensor (161) fixed to the top of the housing (130) and extending into the inner cavity of the housing (130) and a smoke sensor (162) installed on the top of the housing (130) and extending into the inner cavity of the housing (130).

6. The high heat dissipation AC variable frequency speed control cabinet according to claim 1, characterized in that, The fire extinguishing assembly (180) includes a gas cylinder (181) installed on the inner wall of the housing (170), a connecting pipe (182) connecting the gas cylinder (181) to the bottom of the inner cavity of the outer housing (130), and an electric valve (183) installed on the connecting pipe (182).

7. A high-heat-dissipation AC variable frequency speed control cabinet according to claim 6, characterized in that, The inner cavity of the gas tank (181) is filled with high-pressure inert gas.

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