Efficient heat dissipation type low-voltage switch cabinet

Abstract

The utility model discloses a high-efficiency heat dissipation type low-voltage switch cabinet, which relates to the technical field of low-voltage switch cabinets and comprises a cabinet body and a barrier assembly. Three corresponding temperature sensors are installed on the right side of the interior of the cabinet body, U-shaped connecting grooves which are evenly distributed are formed in the inner wall of the cabinet body, two corresponding clamping grooves are formed in the left side and the right side of the interior of each U-shaped connecting groove, a second air blowing assembly is installed on the rear side of the cabinet body, and an air inlet assembly is installed in the middle of the rear side of the interior of the cabinet body; the blocking assembly comprises partition plates, T-shaped holes, pull rods, T-shaped pull ropes, fixing rings, sliding rods, clamping heads and springs, the two corresponding partition plates are arranged in the upper U-shaped connecting groove and the lower U-shaped connecting groove, the two partition plates are located among the three temperature sensors, the T-shaped holes are formed in the middles of the partition plates, the two corresponding fixing rings are fixed to the left end and the right end of the rear side in each T-shaped hole, and the clamping heads are located between the two corresponding fixing rings. Segmented heat dissipation can be carried out, air dispersion is avoided, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, specifically a high-efficiency heat dissipation type low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear is suitable for power plants, petroleum, chemical, metallurgical, textile, high-rise building and other industries for power transmission, distribution and power conversion. Operating conditions for low-voltage switchgear: 1. Ambient air temperature must not exceed +40℃ or fall below -5℃, and the average temperature within 24 hours must not exceed +35℃; 2. Air must be clean, with relative humidity not exceeding 50% at a maximum temperature of +40℃, and higher relative humidity is permissible at lower temperatures; 3. Pollution degree is level 3; 4. The altitude of the installation site must not exceed 2000m. Low-voltage switchgear is structurally classified into fixed type and withdrawable type.

[0003] The existing method of heat dissipation for low-voltage switchgear involves using a fan and ventilation holes to lower the overall internal temperature of the switchgear in order to cool the built-in electrical components. However, this method is inefficient because the internal space of the low-voltage switchgear is large and the airflow is too dispersed, resulting in low heat dissipation efficiency and failing to provide localized and rapid cooling for the electrical components. Therefore, we propose a high-efficiency heat dissipation type of low-voltage switchgear. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-efficiency heat dissipation type low-voltage switchgear that can perform segmented heat dissipation, avoid airflow dispersion, improve heat dissipation efficiency, and effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation type low-voltage switchgear, comprising a cabinet and a barrier component;

[0006] Cabinet: Three corresponding temperature sensors are installed on the right side inside the cabinet. U-shaped connecting grooves are evenly distributed on the inner wall of the cabinet. Two corresponding slots are opened on the left and right sides inside the U-shaped connecting grooves. A second air blowing component is installed on the rear side of the cabinet. An air intake component is installed in the middle of the rear side inside the cabinet.

[0007] The barrier assembly includes a partition, a T-shaped hole, a pull rod, a T-shaped pull rope, a fixing ring, a slide rod, a clip, and a spring. Two corresponding partitions are installed inside the upper and lower U-shaped connecting slots, located between three temperature sensors. A T-shaped hole is formed in the middle of each partition. Two corresponding fixing rings are fixed to the left and right ends of the rear side of the T-shaped hole. Two corresponding slide rods are slidably connected inside the two fixing rings. A clip is fixed to one end of each slide rod, engaging with its corresponding slot. A T-shaped pull rope is fixed to the adjacent end of each slide rod, with a pull rod fixed to the front end of the T-shaped pull rope. A spring is fitted onto the circumference of each slide rod, with one end fixed to the end face of the adjacent clip and the other end fixed to the end face of the fixing ring. A first air-blowing assembly is installed on the upper side of the partition, and both first air-blowing assemblies are connected to the air-inlet assembly. The barrier assembly effectively divides the internal storage space of the cabinet.

[0008] The temperature sensor is bidirectionally electrically connected to an external PLC controller.

[0009] Furthermore, the first air blowing assembly includes a fixing frame, an air blowing groove, and an air injection pipe. The upper side of the partition has two corresponding openings, and the fixing frame is fixed inside the two openings. The air blowing groove is provided in the middle of the front side of the fixing frame. The fixing frame has two corresponding fixing holes, and the air injection pipe is fixed inside the two fixing holes. Both ends of the air injection pipe are connected to the air blowing groove. Air is blown into the cabinet by setting the first air blowing assembly.

[0010] Furthermore, the air intake assembly includes a connecting hose, a first solenoid valve, an air guide ring, a conical tube, and a second solenoid valve. An opening is provided at the lower end of the circumferential surface of the air injection pipe, and a connecting hose is fixed inside the opening. The first solenoid valve is installed on the circumferential surface of the connecting hose. An air guide hole is provided in the middle of the rear side of the cabinet interior, and an air guide ring is fixed inside the air guide hole. A conical tube is fixed inside the air guide ring, and a second solenoid valve is installed on the circumferential surface of the conical tube. Both connecting hoses are fixed to the circumferential surface of the air guide ring, and the connecting hoses communicate with the inner cavity of the air guide ring. The input ends of both the first and second solenoid valves are electrically connected to the output end of an external PLC controller. By setting the air intake assembly, the range of compressed air injection can be controlled.

[0011] Furthermore, the second air blowing assembly includes an air injection fan, an air inlet pipe, and a limiting ring. The air injection fan is installed on the rear side of the cabinet. An air inlet pipe is fixed inside the air outlet of the air injection fan. A limiting ring is fixed at the lower end of the circumferential surface of the air inlet pipe. The limiting ring is fixed on the rear side of the cabinet. The limiting ring corresponds to the air guide ring. The input end of the air injection fan is electrically connected to the output end of an external PLC controller. By setting the second air blowing assembly, external compressed air is injected into the interior of the cabinet.

[0012] Furthermore, a baffle is hinged to the front side of the cabinet, and an observation port is opened on the front side of the baffle. A transparent plate is fixed inside the observation port, and the cabinet is sealed by setting the baffle.

[0013] Furthermore, two corresponding strip openings are provided on the left and right sides of the cabinet, and a barrier mesh is fixed inside the strip opening to prevent external dust from entering the cabinet.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-efficiency heat dissipation low-voltage switchgear has the following advantages:

[0015] 1. By setting three temperature sensors, the temperature of three locations inside the cabinet separated by two partitions is continuously detected. When the temperature of a certain location is too high, compressed air is injected into the high-temperature part through the air outlet component, air inlet component and second air blowing component to make the interior air exchange quickly. In this way, the air volume is effectively avoided and the heat dissipation efficiency is improved.

[0016] 2. By setting up a barrier component, during use, the two pull rods can be pulled to separate the four clips from the four slots according to the size of the electrical equipment to be installed. After separation, the two partitions can be removed. After removal, the two partitions can be inserted into the U-shaped connecting grooves in the appropriate positions according to the size of the electrical equipment. Then, the two pull rods can be released. At this time, the four clips will enter the corresponding four slots under the action of the four springs. In this case, the two partitions can divide the interior of the cabinet into three parts, and then the electrical equipment can be installed in three different parts. This allows for the installation of electrical equipment of different sizes inside the cabinet. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 2 This is a lower sectional view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4This is a schematic diagram of the air intake assembly structure of this utility model.

[0021] In the diagram: 1 Cabinet, 2 Temperature Sensor, 3 U-shaped Connecting Slot, 4 Card Slot, 5 Barrier Component, 51 Partition, 52 T-shaped Hole, 53 Pull Rod, 54 T-shaped Pull Rope, 55 Fixing Ring, 56 Slide Rod, 57 Clip Head, 58 Spring, 6 First Air Blowing Component, 61 Fixing Frame, 62 Air Blowing Slot, 63 Air Injection Pipe, 7 Air Inlet Component, 71 Connecting Hose, 72 First Solenoid Valve, 73 Air Guide Ring, 74 Conical Tube, 75 Second Solenoid Valve, 8 Second Air Blowing Component, 81 Air Injection Fan, 82 Air Inlet Pipe, 83 Limiting Ring, 9 Baffle, 10 Transparent Plate, 11 Barrier Mesh. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This embodiment provides a technical solution: a high-efficiency heat dissipation type low-voltage switchgear, including a cabinet 1 and a barrier component 5;

[0024] Cabinet 1: Three corresponding temperature sensors 2 are installed on the right side inside. U-shaped connecting grooves 3 are evenly distributed on the inner wall of cabinet 1. Two corresponding slots 4 are opened on the left and right sides of the U-shaped connecting grooves. A second air blowing assembly 8 is installed on the rear side of cabinet 1. An air intake assembly 7 is installed in the middle of the rear side inside cabinet 1. The air intake assembly 7 includes a connecting hose 71, a first solenoid valve 72, an air guide ring 73, a conical tube 74, and a second solenoid valve 75. An opening is opened at the lower end of the circumference of the air injection pipe 63, and the connecting hose 71 is fixed inside the opening. The first solenoid valve 72 is installed on the circumference of the connecting hose 71. An air guide hole is opened in the middle of the rear side inside cabinet 1, and an air guide ring 73 is fixed inside the air guide ring 73. A conical tube 74 is fixed inside the air guide ring 73, and the second solenoid valve 75 is installed on the circumference of the conical tube 74. Both connecting hoses 71 are fixed on the circumferential surface of the air guide ring 73. The connecting hoses 71 are connected to the inner cavity of the air guide ring 73. The input ends of the first solenoid valve 72 and the second solenoid valve 75 are electrically connected to the output end of the external PLC controller. The second air blowing assembly 8 includes an air injection fan 81, an air inlet pipe 82 and a limiting ring 83. The air injection fan 81 is installed on the rear side of the cabinet 1. The air inlet pipe 82 is fixed inside the air outlet of the air injection fan 81. The lower end of the circumferential surface of the air inlet pipe 82 is fixed with a limiting ring 83. The limiting ring 83 is fixed on the rear side of the cabinet 1. The limiting ring 83 corresponds to the air guide ring 73. The input end of the air injection fan 81 is electrically connected to the output end of the external PLC controller. By setting the second air blowing assembly 8, external compressed air is injected into the interior of the cabinet 1. By setting the air inlet assembly 7, the range of compressed air injection is controlled.

[0025] Barrier component 5 includes a partition 51, a T-shaped hole 52, a pull rod 53, a T-shaped pull rope 54, a fixing ring 55, a slide rod 56, a locking head 57, and a spring 58. Two corresponding partitions 51 are arranged inside the upper and lower U-shaped connecting grooves 3, located between the three temperature sensors 2. A T-shaped hole 52 is opened in the middle of the partition 51. Two corresponding fixing rings 55 are fixed to the left and right ends of the rear side of the T-shaped hole 52. Two corresponding slide rods 56 are slidably connected inside the two fixing rings 55. A locking head 57 is fixed to one end of each slide rod 56, engaging with the corresponding locking groove 4. A T-shaped pull rope 54 is fixed to the adjacent end of the two slide rods 56. A pull rod 53 is fixed to the front end of the T-shaped pull rope 54. A spring 58 is sleeved on the circumference of the slide rod 56. One end of spring 58 is fixed to the end face of the adjacent card head 57, and the other end of spring 58 is fixed to the end face of the fixing ring 55. A first air blowing assembly 6 is installed on the upper side of partition 51. Both first air blowing assemblies 6 are connected to the air inlet assembly 7. The first air blowing assembly 6 includes a fixing frame 61, an air blowing groove 62 and an air injection pipe 63. Two corresponding openings are opened on the upper side of partition 51. The fixing frame 61 is fixed inside the two openings. An air blowing groove 62 is opened in the middle of the front side of the fixing frame 61. Two corresponding fixing holes are opened inside the fixing frame 61. An air injection pipe 63 is fixed inside the two fixing holes. Both ends of the air injection pipe 63 are connected to the air blowing groove 62. By setting the first air blowing assembly 6, air is blown into the interior of cabinet 1. By setting the barrier assembly 5, the storage space inside cabinet 1 is separated.

[0026] Among them, temperature sensor 2 is bidirectionally electrically connected to an external PLC controller.

[0027] Among them: a baffle 9 is hinged to the front side of the cabinet 1, and an observation port is opened on the front side of the baffle 9. A transparent plate 10 is fixed inside the observation port. The cabinet 1 is sealed by setting the baffle 9.

[0028] Specifically, two corresponding strip openings are provided on the left and right sides of the cabinet 1. A barrier mesh 11 is fixed inside the strip opening to prevent external dust from entering the interior of the cabinet 1.

[0029] The working principle of this utility model for a high-efficiency heat dissipation low-voltage switchgear is as follows: First, pull the two levers 53 according to the size of the electrical equipment to be installed, so that the four clips 57 separate from the four slots 4. After separation, remove the two partitions 51. After removal, insert the two partitions 51 into the U-shaped connecting grooves 3 in the appropriate positions according to the size of the electrical equipment. Then release the two levers 53. At this time, the four clips 57 will enter the corresponding four slots 4 under the action of the four springs 58. In this case, the two partitions 51 can divide the interior of the cabinet 1 into three parts. Then, the electrical equipment can be installed in the three parts respectively. After installation, the three temperature sensors 2 continuously detect the temperature of the three positions separated by the two partitions 51 inside the cabinet 1. When the temperature at the upper position is too high, the external PLC controller will close the first solenoid valve 72 and the second solenoid valve 75 at the lower position. In this case, the air injection fan 81 will start and inject external air into the upper air blowing channel 62 through the upper connecting hose 71, and then spray it onto the upper part of the upper partition 51. In this case, the upper part of the cabinet 1 can be cooled. When the temperature in the middle of the cabinet 1 is too high, the upper and lower first solenoid valves 72 will be closed and external air will be injected into the middle of the cabinet 1 through the conical pipe 74. When the temperature in the lower part of the cabinet 1 is too high, the upper first solenoid valve 72 and the second solenoid valve 75 will be closed and external air will be injected into the lower part of the cabinet 1 through the lower air blowing channel 62. In this case, the air volume can be prevented from being dispersed and the heat dissipation efficiency can be improved.

[0030] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The temperature sensor 2 can be an LSCI-TZ03 laser focusing infrared temperature sensor. The first solenoid valve 72 and the second solenoid valve 75 can be VP3185-205DA1-X81 solenoid valves. The air injection fan 81 can be a D2E146 cooling fan. The control switch group controls the operation of the first solenoid valve 72, the second solenoid valve 75, and the air injection fan 81 using methods commonly used in the prior art.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency heat dissipation type low-voltage switchgear, characterized in that: Includes cabinet (1) and barrier components (5); Cabinet (1): Three corresponding temperature sensors (2) are installed on the right side inside. U-shaped connecting grooves (3) are evenly distributed on the inner wall of the cabinet (1). Two corresponding slots (4) are opened on the left and right sides inside the U-shaped connecting groove. A second air blowing component (8) is installed on the rear side of the cabinet (1). An air intake component (7) is installed in the middle of the rear side inside the cabinet (1). The barrier assembly (5) includes a partition (51), a T-shaped hole (52), a pull rod (53), a T-shaped pull rope (54), a fixing ring (55), a slide rod (56), a clip (57), and a spring (58). Two corresponding partitions (51) are arranged inside the upper and lower U-shaped connecting grooves (3). The two partitions (51) are located between the three temperature sensors (2). A T-shaped hole (52) is opened in the middle of the partition (51). Two corresponding fixing rings (55) are fixed at the left and right ends of the rear side of the T-shaped hole (52). Two corresponding slide rods (56) are slidably connected inside the two fixing rings (55). One end of each of the slide rods (56) is fixed with a clip (57), which is engaged in the inside of the corresponding slot (4). A T-shaped pull rope (54) is fixed to one end of each of the two slide rods (56). A pull rod (53) is fixed to the front end of the T-shaped pull rope (54). A spring (58) is sleeved on the circumferential surface of the slide rod (56). One end of the spring (58) is fixed to the end face of the adjacent clip (57), and the other end of the spring (58) is fixed to the end face of the fixing ring (55). A first air blowing assembly (6) is installed on the upper side of the partition (51). Both first air blowing assemblies (6) are connected to the air intake assembly (7). Wherein: the temperature sensor (2) is bidirectionally electrically connected to an external PLC controller.

2. The high-efficiency heat dissipation type low-voltage switchgear according to claim 1, characterized in that: The first air blowing assembly (6) includes a fixing frame (61), an air blowing groove (62) and an air injection pipe (63). The upper side of the partition (51) has two corresponding openings, and the fixing frame (61) is fixed inside the two openings. The air blowing groove (62) is provided in the middle of the front side of the fixing frame (61). The fixing frame (61) has two corresponding fixing holes, and the air injection pipe (63) is fixed inside the two fixing holes. Both ends of the air injection pipe (63) are connected to the air blowing groove (62).

3. The high-efficiency heat dissipation type low-voltage switchgear according to claim 2, characterized in that: The air intake assembly (7) includes a connecting hose (71), a first solenoid valve (72), an air guide ring (73), a conical tube (74), and a second solenoid valve (75). The lower end of the circumferential surface of the air injection pipe (63) has an opening, and the connecting hose (71) is fixed inside the opening. The first solenoid valve (72) is installed on the circumferential surface of the connecting hose (71). An air guide hole is opened in the middle of the rear side inside the cabinet (1). The air guide ring (73) is fixed inside the air guide hole. The conical tube (74) is fixed inside the air guide ring (73). The second solenoid valve (75) is installed on the circumferential surface of the conical tube (74). Both connecting hoses (71) are fixed on the circumferential surface of the air guide ring (73). The connecting hoses (71) are connected to the inner cavity of the air guide ring (73). The input ends of the first solenoid valve (72) and the second solenoid valve (75) are electrically connected to the output end of an external PLC controller.

4. The high-efficiency heat dissipation type low-voltage switchgear according to claim 3, characterized in that: The second air blowing assembly (8) includes an air injection fan (81), an air inlet pipe (82), and a limiting ring (83). The air injection fan (81) is installed on the rear side of the cabinet (1). The air inlet pipe (82) is fixed inside the air outlet of the air injection fan (81). The lower end of the circumferential surface of the air inlet pipe (82) is fixed with a limiting ring (83). The limiting ring (83) is fixed on the rear side of the cabinet (1). The limiting ring (83) corresponds to the air guide ring (73). The input end of the air injection fan (81) is electrically connected to the output end of an external PLC controller.

5. The high-efficiency heat dissipation type low-voltage switchgear according to claim 1, characterized in that: The cabinet (1) is hinged to a baffle (9) on the front side, and an observation port is provided on the front side of the baffle (9). A transparent plate (10) is fixed inside the observation port.

6. The high-efficiency heat dissipation type low-voltage switchgear according to claim 1, characterized in that: The cabinet (1) has two corresponding strip openings on its left and right sides, and the inside of the strip openings is fixed with a barrier mesh strip (11).

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