Strong and weak current integrated control cabinet for central air-conditioning system

Abstract

The utility model relates to the technical field of control cabinets, in particular to a strong and weak current integrated control cabinet for a central air-conditioning system. In order to solve the problems that heat is dissipated into a strong current part, the overall temperature of the strong current part may rise after long-term work, the high temperature may accelerate aging of electrical components, and the service life of equipment is shortened, the following technical scheme is provided: a cabinet body; the fan is used for driving air to circulate for heat dissipation, and the fan is installed in the cabinet body; the cabinet door is hinged to one side of the cabinet body, and a handle is installed on the cabinet door; and the fixing assembly is used for clamping and fixing the wire harness after wiring connection, and the fixing assembly is installed in the cabinet body. According to the utility model, the heat radiation effect is good, the service life of the equipment is prolonged, the wiring is neat, the wire debugging is convenient, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a strong and weak electricity integrated control cabinet for a central air-conditioning system. Background Art

[0002] In the central air conditioning system, a strong and weak current integrated control cabinet is used. It is a control device that integrates the strong and weak current parts. It integrates the strong and weak current control systems into one device and performs automatic control. The strong and weak current integrated control cabinet is mainly composed of strong and weak current components, including power supplies, switches, protectors, contactors, relays, PLCs (programmable controllers), touch screens, sensors, actuators, etc.

[0003] An existing central air-conditioning integrated power and weak current energy-saving control cabinet is fixedly connected to the strong current room through a heat sink. By fixing the inverter on the heat sink, the inverter is suspended in the strong current room, which facilitates the heat dissipation in the inverter, reduces the working temperature of the inverter, and increases the service life of the inverter. However, the heat is dissipated into the strong current part, which may cause the overall temperature of the strong current part to rise after long-term operation. High temperature may accelerate the aging of electrical components and shorten the life of the equipment. In view of this, the utility model proposes a strong and weak current integrated control cabinet for a central air-conditioning system. Utility Model Content

[0004] The purpose of the utility model is to propose a strong and weak current integrated control cabinet for a central air-conditioning system in order to address the problem in the background technology that heat is dissipated into the strong current part, which may cause the overall temperature of the strong current part to rise after long-term operation, and the high temperature may accelerate the aging of electrical components, resulting in a shortened equipment life.

[0005] The technical solution of the utility model: a strong and weak electricity integrated control cabinet for a central air-conditioning system, comprising:

[0006] Cabinet;

[0007] A fan for driving air circulation for heat dissipation, wherein the fan is installed in the cabinet;

[0008] A cabinet door hinged on one side of the cabinet body, wherein a handle is installed on the cabinet door;

[0009] A fixing component is used to clamp and fix the wiring harness after wiring connection, and the fixing component is installed in the cabinet.

[0010] Optionally, a mounting plate is provided in the cabinet, and a partition plate is fixedly connected to a side of the mounting plate close to the cabinet door, and the partition plate divides the cabinet into a high-current part and a low-current part.

[0011] Optionally, the mounting plate is provided with a plurality of heat dissipation holes, and both sides of the cabinet are provided with a plurality of ventilation holes, the ventilation holes are arranged on a side of the mounting plate away from the partition plate, and the fan is installed at a position corresponding to the ventilation holes.

[0012] Optionally, the fixing assembly includes two groups of limit rods fixedly connected to the side of the partition plate away from the mounting plate, and the two groups of limit rods are slidably connected with a positioning plate. The positioning plate and the partition plate are close to each other and have multiple groups of card slots, and cache pads are provided in the card slots.

[0013] Optionally, one end of the two groups of limit rods away from the partition plate is commonly fixedly connected to a fixing rod, and both ends of the fixing rod are also fixedly connected to the inner wall of the cabinet.

[0014] Optionally, a threaded rod is threadedly connected in the fixing rod, one end of the threaded rod passes through the fixing rod and is rotatably connected to a movable plate, and two sets of limiting plates are also installed on a side of the movable plate close to the positioning plate.

[0015] Optionally, the two groups of limit plates are respectively arranged at the top and bottom of the positioning plate, and the positioning plate is slidably connected between the two groups of limit plates.

[0016] Optionally, a plurality of mounting grooves are provided on a side of the positioning plate away from the partition plate, and springs are provided between the plurality of mounting grooves and the movable plate, and one end of the spring is fixedly connected to the mounting groove.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model provides heat dissipation holes and ventilation holes, and cooperates with a fan to allow air to circulate, so that the air can take away the heat in the cabinet when passing through, thereby achieving the purpose of heat dissipation, slowing down the aging speed of electrical components, and extending the service life of the equipment;

[0019] Furthermore, the wiring harness can be clamped by the card slots and buffer pads provided in the fixing assembly, so that the wiring in the cabinet is neat, and the wires can be prevented from being intertwined, intertwined and tangled, reducing the risk of failure and wrong connection, while making it easier to identify and debug the wires, thereby improving maintenance efficiency;

[0020] In summary, the utility model has a good heat dissipation effect, prolongs the service life of the equipment, and at the same time has neat wiring, is convenient for debugging of wires, and improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a strong and weak current integrated control cabinet used in a central air-conditioning system;

[0022] Figure 2This is a schematic diagram of the cabinet door opening state;

[0023] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure of;

[0025] Figure 5 It is a schematic diagram of the disassembled structure of the fixed components.

[0026] Reference numerals:

[0027] 1. Cabinet; 11. Mounting plate; 12. Partition plate; 13. Heat dissipation holes; 14. Ventilation holes;

[0028] 2. Fan; 3. Cabinet door; 4. Handle;

[0029] 5. Fixed assembly; 501. Limit rod; 502. Positioning plate; 503. Card slot; 504. Cache pad; 505. Fixed rod; 506. Threaded rod; 507. Moving plate; 508. Limit plate; 509. Mounting slot; 510. Spring. DETAILED DESCRIPTION

[0030] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0031] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0032] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the utility model proposes a strong and weak electricity integrated control cabinet for a central air-conditioning system, including a cabinet 1, which is used to protect the equipment installed inside. A fan 2 is used to drive air circulation for heat dissipation, and the fan 2 is installed in the cabinet 1. A cabinet door 3 is hinged on one side of the cabinet 1, and the cabinet door 3 is convenient for installation and maintenance of the equipment after opening. A handle 4 is installed on the cabinet door 3, and the setting of the handle 4 facilitates the opening and closing of the cabinet door 3. A mounting plate 11 is provided in the cabinet 1, and the equipment components are all installed on the mounting plate 11 for fixing. A partition plate 12 is fixedly connected to the side of the mounting plate 11 close to the cabinet door 3, and the partition plate 12 divides the cabinet 1 into a strong electricity part and a weak electricity part. The strong electricity part is above the partition plate 12, and a power switch, a circuit breaker, a relay, etc. are installed. The weak electricity part is below the partition plate 12, and a control panel, a communication module, etc. are installed. A plurality of heat dissipation holes 13 are provided on the mounting plate 11, and the heat dissipation holes 13 facilitate the installation of the equipment and heat dissipation when the air is circulated. Multiple sets of ventilation holes 14 are provided on both sides of the cabinet 1, and the ventilation holes 14 are used to drive air through the cabinet 1 to achieve the purpose of heat dissipation after the fan 2 is started. The ventilation holes 14 are arranged on the side of the mounting plate 11 away from the partition plate 12, and the fan 2 is installed at the position corresponding to the ventilation holes 14. Such a design facilitates ventilation and heat dissipation behind the strong electric part.

[0036] For further information, see Figure 2 , Figure 3 and Figure 5The control cabinet also includes a fixing assembly 5 for clamping and fixing the wiring harness after wiring connection. The fixing assembly 5 is installed in the cabinet 1. The fixing assembly 5 includes two sets of limit rods 501 fixedly connected to the side of the partition plate 12 away from the mounting plate 11. The position of the limit rods 501 is fixed. A positioning plate 502 is slidably connected to the two sets of limit rods 501. The positioning plate 502 moves smoothly under the limiting action of the limit rods 501. Multiple sets of card slots 503 are provided on the side where the positioning plate 502 and the partition plate 12 are close to each other. The card slots 503 are used to clamp the wiring harness and position the wiring harness to make the wiring neat. A buffer pad 504 is provided in the card slot 503. The buffer pad 504 is made of rubber and is used to prevent damage to the wiring harness caused by excessive extrusion force. The two groups of limiting rods 501 are fixedly connected to the ends away from the partition plate 12 with a fixed rod 505, and the two ends of the fixed rod 505 are also fixedly connected to the inner wall of the cabinet 1, and the position of the fixed rod 505 is fixed, and the structure of the limiting rod 501 is more stable. The fixed rod 505 is threadedly connected with a threaded rod 506, which is used for the threaded rod 506 to move along its own length direction when rotating. One end of the threaded rod 506 penetrates the fixed rod 505 and is rotatably connected with a movable plate 507, which is used for the threaded rod 506 to drive the movable plate 507 to move synchronously when moving. Two groups of limiting plates 508 are also installed on the side of the movable plate 507 close to the positioning plate 502, and the two groups of limiting plates 508 are respectively arranged at the top and bottom of the positioning plate 502, and the positioning plate 502 is slidably connected in the two groups of limiting plates 508. The limiting plate 508 moves synchronously with the movable plate 507, and prevents the movable plate 507 from being driven to rotate by the threaded rod 506 when moving. A plurality of mounting grooves 509 are provided on one side of the positioning plate 502 away from the partition plate 12, and a spring 510 is provided between the plurality of mounting grooves 509 and the movable plate 507, and one end of the spring 510 is fixedly connected in the mounting groove 509, and the spring 510 is used to release elastic force so that the positioning plate 502 presses the wiring harness tightly without applying excessive mechanical force to cause damage to the wiring harness.

[0037] In this embodiment, first, all the equipment components are installed on the mounting plate 11, and the connecting wires are connected. The wire harness connecting the weak current part and the strong current part is passed through the slot 503 provided on the partition plate 12 and the positioning plate 502, and the threaded rod 506 is rotated using a screwdriver. Since the threaded rod 506 is threadedly connected with the fixed rod 505, the threaded rod 506 moves along its own length direction, and at the same time drives the moving plate 507 to approach the positioning plate 502. At this time, the limit plate 508 moves synchronously with the moving plate 507 and is slidably connected to both sides of the positioning plate 502, so that the movement of the moving plate 507 is stable, and the moving plate 507 is stable to approach the positioning plate 502 and compress the spring 510 at the same time. At this time, the spring 510 drives the positioning plate 502 to move synchronously, and the positioning plate 502 moves smoothly under the limiting action of the two groups of limit rods 501 and clamps the wire harness, and clamps the wire harness through the two groups of buffer pads 504. When the positioning plate 502 contacts the wiring harness, the spring 510 can be compressed to prevent the mechanical force brought by the threaded rod 506 from directly squeezing the wiring harness and causing damage to the wiring harness. The elasticity of the spring 510 can play a good buffering role, protecting the wiring harness while fixing it.

[0038] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A strong and weak electricity integrated control cabinet for a central air-conditioning system, characterized in that: include: Cabinet (1); A fan (2) for driving air circulation for heat dissipation, wherein the fan (2) is installed in the cabinet (1); A cabinet door (3) hingedly connected to one side of the cabinet body (1), wherein a handle (4) is mounted on the cabinet door (3); A fixing component (5) for clamping and fixing a wiring harness after wiring connection, wherein the fixing component (5) is installed in a cabinet (1).

2. The strong and weak electricity integrated control cabinet for a central air-conditioning system according to claim 1, characterized in that: The cabinet body (1) is provided with a mounting plate (11), and a partition plate (12) is fixedly connected to a side of the mounting plate (11) close to the cabinet door (3), wherein the partition plate (12) divides the cabinet body (1) into a strong current part and a weak current part.

3. A strong and weak electricity integrated control cabinet for a central air conditioning system according to claim 2, characterized in that: The mounting plate (11) is provided with a plurality of heat dissipation holes (13), and both sides of the cabinet (1) are provided with a plurality of ventilation holes (14). The ventilation holes (14) are arranged on a side of the mounting plate (11) away from the partition plate (12), and the fan (2) is installed at a position corresponding to the ventilation holes (14).

4. The strong and weak electricity integrated control cabinet for a central air conditioning system according to claim 2, characterized in that: The fixing assembly (5) comprises two groups of limit rods (501) fixedly connected to the side of the partition plate (12) away from the mounting plate (11), and the two groups of limit rods (501) are slidably connected to a positioning plate (502) together, and a plurality of groups of card slots (503) are provided on the side where the positioning plate (502) and the partition plate (12) are close to each other, and a buffer pad (504) is provided in the card slot (503).

5. The strong and weak electricity integrated control cabinet for a central air-conditioning system according to claim 4, characterized in that: One end of the two groups of limit rods (501) away from the partition plate (12) is fixedly connected to a fixing rod (505), and both ends of the fixing rod (505) are also fixedly connected to the inner wall of the cabinet (1).

6. The strong and weak electricity integrated control cabinet for a central air-conditioning system according to claim 5, characterized in that: A threaded rod (506) is threadedly connected to the fixing rod (505), one end of the threaded rod (506) passes through the fixing rod (505) and is rotatably connected to a movable plate (507), and two sets of limiting plates (508) are also installed on one side of the movable plate (507) close to the positioning plate (502).

7. The strong and weak electricity integrated control cabinet for a central air-conditioning system according to claim 6, characterized in that: The two groups of limit plates (508) are respectively arranged at the top and bottom of the positioning plate (502), and the positioning plate (502) is slidably connected in the two groups of limit plates (508).

8. The strong and weak electricity integrated control cabinet for a central air-conditioning system according to claim 6, characterized in that: A plurality of groups of mounting grooves (509) are provided on a side of the positioning plate (502) away from the partition plate (12), and a spring (510) is provided between each of the plurality of groups of mounting grooves (509) and the movable plate (507), with one end of the spring (510) being fixedly connected to the mounting groove (509).

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