A multi-protection control box

Abstract

The utility model discloses a multi-protection control box, which relates to the technical field of control boxes, including a box body and a ventilation mechanism, a box door is hinged on the box body, a ventilation mechanism is arranged in the box body, a filter assembly is arranged in the air inlet and the air outlet of the ventilation mechanism, a sealing structure is arranged between the box body and the box door, a fireproof assembly is arranged at the bottom of the box body, and a control unit is placed in the box body. The multi-protection control box of the utility model has a fully strengthened box body structure to meet the earthquake resistance requirements, and the box body can meet the IP55 protection level, which can meet the multiple protection requirements of the electric control system arranged on site of nuclear power plants and spent fuel reprocessing projects for fire prevention, earthquake resistance, IP level, etc.

Description

Technical Field

[0001] The utility model relates to the technical field of control boxes, in particular to a multi-protection control box. Background Art

[0002] At present, with the promotion of clean energy, the status of nuclear power plants continues to emerge, and is gradually becoming an indispensable part of my country's power industry. The existing control devices are set up at the nuclear engineering site, so they are directly exposed to the nuclear engineering site. There are many environmental factors that hinder the operation of the control system at the nuclear engineering site, such as vibration, dust, humidity, electromagnetic interference, etc. The above adverse environmental factors require the control box body to have multiple protection capabilities (fireproof, earthquake-resistant, IP grade, electromagnetic compatibility). The existing control box cannot provide multi-faceted protection and cannot meet actual production needs. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-protection control box to solve the problems existing in the above-mentioned prior art and enable the control box to perform multi-faceted protection.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a multi-protection control box, comprising a box body and a ventilation mechanism, wherein a box door is hinged on the box body, the ventilation mechanism is arranged in the box body, waterproof filter components are arranged in the air inlet and the air outlet of the ventilation mechanism, a sealing structure is arranged between the box body and the box door, a fireproof component is arranged at the bottom of the box body, and the box body is used to place a control unit.

[0006] Preferably, a temperature sensor is provided in the box, the control unit is provided on a breathable support frame plate, and the temperature sensor and the ventilation mechanism are both communicatively connected with the control unit.

[0007] Preferably, the ventilation mechanism includes a fan arranged in the box body, and the air inlet and the air outlet are respectively arranged on two opposite side walls of the box body, the air inlet is located at the top, the air outlet is located at the bottom, and the fan is located at the air outlet.

[0008] Preferably, the waterproof filter assembly includes a filter assembly and a waterproof breathable cover which are arranged in sequence, a waterproof breathable cover is arranged on one side of the fan, the waterproof breathable cover includes an integrally formed metal plate and a waterproof cover, air holes are opened on the metal plate, the air holes are covered with the waterproof cover, the waterproof cover is a semi-enclosed structure with an opening facing downward, and the metal plate is sealed and welded to the air inlet and the air outlet of the box body respectively.

[0009] Preferably, the filter assembly is located on the inner side of the waterproof breathable cover, and the filter assembly comprises a mesh frame and filter cotton, and the filter cotton is arranged between two mesh frames.

[0010] Preferably, a conductive sealing structure is arranged between the box door and the box body, and the conductive sealing structure includes a conductive sealing metal shielding ring and a rubber sealing ring. The rubber sealing ring is clamped on the box door, and the cross-section of the conductive sealing metal shielding ring is V-shaped. One side wall of the conductive sealing metal shielding ring is welded to the box opening of the box body. When the box door and the box body are closed, the conductive sealing metal shielding ring is located on the inner side of the rubber sealing ring and can be in conductive contact with the box door.

[0011] Preferably, the fireproof assembly includes a fireproof sealing plate and a fireproof inlet cable gland, and a plurality of fireproof inlet cable glands are arranged on the fireproof sealing plate. The fireproof inlet cable glands are used to pass cables connected to the control unit, and the fireproof sealing plate is made of metal and is seal-welded to the bottom of the box.

[0012] Preferably, four mounting feet are provided on the side wall of the box body, and mounting holes are provided on the mounting feet; and a waterproof sliding cover lock is provided between the box door and the box body.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model has a multi-protection control box with a fully strengthened box structure to meet the earthquake resistance requirements. The box can meet the IP55 protection level, and can meet the multiple protection requirements of the electric control system arranged on site in nuclear power plants and spent fuel reprocessing projects for fire protection, earthquake resistance, IP level, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the appearance structure of a multi-protection control box in an embodiment of the utility model;

[0017] Figure 2 This is a front view of a multi-protection control box in an embodiment of the utility model;

[0018] Figure 3 This is a bottom view of a multi-protection control box in an embodiment of the utility model;

[0019] Figure 4 It is a side view of a multi-protection control box in an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of a multi-protection control box in an embodiment of the utility model;

[0021] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged local structure at point A in the middle;

[0022] Among them: 1-box body, 2-box door, 3-air inlet, 4-air outlet, 5-fan, 6-fireproof sealing plate, 7-temperature sensor, 8-conductive sealing metal shielding ring, 9-rubber sealing ring, 10-installation foot, 11-sign, 12-fireproof inlet cable gland, 13-control unit, 14-waterproof breathable cover, 15-filter component, 16-waterproof sliding cover lock. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model aims to provide a multi-protection control box to solve the problems existing in the prior art and enable the control box to perform multi-faceted protection.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figures 1 to 6 As shown: This embodiment provides a multi-protection control box, including a box body 1 and a ventilation mechanism, a box door 2 is hinged on the box body 1, a ventilation mechanism is arranged in the box body 1, a waterproof filter component is arranged in the air inlet 3 and the air outlet 4 of the ventilation mechanism, a sealing structure is arranged between the box body 1 and the box door 2, a fireproof component is arranged at the bottom of the box body 1, and the box body 1 is used to place a control unit 13.

[0027] As an optional solution, in this embodiment, a temperature sensor 7 is provided in the box body 1, and the control unit 13 is provided on the breathable support frame layer plate to facilitate ventilation, and the temperature sensor 7 and the ventilation mechanism are both communicatively connected with the control unit 13. When the temperature of the temperature sensor 7 in the box body 1 is higher than the set value of the control unit 13, the control unit 13 can start the ventilation mechanism for ventilation and heat dissipation.

[0028] As an optional solution, the ventilation mechanism in this embodiment includes a fan 5 arranged in the box body 1, and an air inlet 3 and an air outlet 4 are respectively arranged on two opposite side walls of the box body 1, the air inlet 3 is located at the top, the air outlet 4 is located at the bottom, and the fan 5 is located at the air outlet 4.

[0029] As an optional solution, the waterproof filter assembly in this embodiment includes a filter assembly 15 and a waterproof breathable cover 14 arranged in sequence, and a waterproof breathable cover 14 is arranged on one side of the fan 5. The waterproof breathable cover 14 includes an integrally formed metal plate and a waterproof cover, and a breathable hole is opened on the metal plate, and a waterproof cover is arranged on the breathable hole. The waterproof cover is a semi-enclosed structure with the opening facing downward, and the metal plate is sealed and welded with the air inlet 3 and the air outlet 4 of the box body 1. Among them, the fan 5, the filter assembly 15 and the waterproof breathable cover 14 are configured with a waterproof breathable cover 14 outside, and the waterproof breathable cover 14 can be a labyrinth waterproof breathable cover, which meets the IP55 protection requirements, and has the same thickness as the cabinet body plate thickness, which is convenient for welding.

[0030] As an optional solution, in this embodiment, the filter component 15 is located on the inner side of the waterproof breathable cover 14. The filter component 15 includes a mesh frame and filter cotton. The filter cotton is arranged between the two mesh frames to prevent dust from entering the cabinet through the air inlet 3 and the air outlet 4.

[0031] As an optional solution, in this embodiment, a conductive sealing structure is provided between the box door 2 and the box body 1. The conductive sealing structure includes a conductive sealing metal shielding ring 8 and a rubber sealing ring 9. The rubber sealing ring 9 is clamped on the box door 2 to play a waterproof and dustproof role. The cross section of the conductive sealing metal shielding ring 8 is V-shaped. One side wall of the conductive sealing metal shielding ring 8 is welded to the box opening of the box body 1. For the specific structure, see Figure 6 When the box door 2 and the box body 1 are closed, the conductive sealed metal shielding ring 8 is located inside the rubber sealing ring 9 and can be in conductive contact with the box door 2 to form an electrostatic shield. The conductive sealed metal shielding ring 8 is a metal, and the conductive sealing structure can meet the electromagnetic compatibility (EMC) protection requirements. Compared with the existing integrated sealing ring made of conductive metal and rubber sealing ring, the split design of this embodiment can achieve its function while greatly reducing its manufacturing cost.

[0032] As an optional solution, the fireproof assembly in this embodiment includes a fireproof sealing plate 6 and a fireproof inlet cable gland 12. A plurality of fireproof inlet cable glands 12 are arranged on the fireproof sealing plate 6. The fireproof inlet cable glands 12 are used to pass cables connected to the control unit 13. The fireproof sealing plate 6 is made of metal and is sealed and welded to the bottom of the box 1. Among them, the fireproof inlet cable glands 12 can meet the fireproof requirements of the box 1.

[0033] As an optional solution, in this embodiment, four mounting feet 10 are provided on the side wall of the box body 1, and mounting holes are provided on the mounting feet 10, so that the box body 1 can be stably connected to the specified position to meet the earthquake resistance requirements. Among them, the control box can be wall-mounted by mounting the feet 10 and expansion screws, and the mounting feet 10 are made of metal material and have a reinforced structure so that the strength can meet the earthquake resistance requirements.

[0034] As an optional solution, in this embodiment, a waterproof sliding cover lock 16 is provided between the box door 2 and the box body 1 to prevent water and dust. A label 11 is installed on the box door 2, which can be used as an identity mark of the box and can be printed with the position number information of the box.

[0035] The multi-protection control box in this embodiment meets the multiple protection requirements of the electric control system deployed on-site in nuclear power plants and spent fuel reprocessing projects for the control box, such as fire protection, earthquake resistance, IP grade, and EMC, and can cope with various protection needs.

[0036] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A multi-protection control box, characterized in that: It includes a box body and a ventilation mechanism, wherein a box door is hinged on the box body, the ventilation mechanism is arranged in the box body, the air inlet and the air outlet of the ventilation mechanism are both provided with waterproof filtering components, a sealing structure is provided between the box body and the box door, a fireproof component is provided at the bottom of the box body, and the box body is used to place a control unit.

2. The multi-protection control box according to claim 1, characterized in that: A temperature sensor is arranged in the box body, and the control unit is arranged on a breathable support frame plate. The temperature sensor and the ventilation mechanism are both in communication connection with the control unit.

3. The multi-protection control box according to claim 1, characterized in that: The ventilation mechanism comprises a fan arranged in the box body, and the air inlet and the air outlet are respectively arranged on two opposite side walls of the box body, the air inlet is located at the top, the air outlet is located at the bottom, and the fan is located at the air outlet.

4. The multi-protection control box according to claim 3 is characterized in that: The waterproof filter assembly includes a filter assembly and a waterproof breathable cover arranged in sequence. A waterproof breathable cover is arranged on one side of the fan. The waterproof breathable cover includes an integrally formed metal plate and a waterproof cover. Air holes are opened on the metal plate. The waterproof cover is covered on the air holes. The waterproof cover is a semi-enclosed structure with an opening facing downward. The metal plate is sealed and welded to the air inlet and the air outlet of the box body respectively.

5. The multi-protection control box according to claim 4, characterized in that: The filter assembly is located on the inner side of the waterproof breathable cover. The filter assembly comprises a mesh frame and filter cotton. The filter cotton is arranged between two mesh frames.

6. The multi-protection control box according to claim 1, characterized in that: A conductive sealing structure is arranged between the box door and the box body, and the conductive sealing structure comprises a conductive sealing metal shielding ring and a rubber sealing ring. The rubber sealing ring is clamped on the box door, and the cross-section of the conductive sealing metal shielding ring is V-shaped. One side wall of the conductive sealing metal shielding ring is welded to the box opening of the box body. When the box door and the box body are closed, the conductive sealing metal shielding ring is located on the inner side of the rubber sealing ring and can be in conductive contact with the box door.

7. The multi-protection control box according to claim 1, characterized in that: The fireproof assembly includes a fireproof sealing plate and a fireproof inlet cable gland. A plurality of fireproof inlet cable glands are arranged on the fireproof sealing plate. The fireproof inlet cable glands are used to pass the cables connected to the control unit. The fireproof sealing plate is made of metal and is sealed and welded to the bottom of the box.

8. The multi-protection control box according to claim 1, characterized in that: Four mounting feet are arranged on the side wall of the box body, and mounting holes are arranged on the mounting feet; a waterproof sliding cover lock is arranged between the box door and the box body.

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