Terminal box suitable for outdoor protection
By designing a terminal box suitable for outdoor protection, a variety of protective measures such as fixed box cover, articulated box door, adjustment shaft and protective baffle, the traditional terminal box has insufficient waterproof, dustproof and electric shock resistance in harsh environments, achieving good protective effect and personal safety guarantee.
Patent Information
- Application Number
- CN202421817952.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Traditional outdoor terminal boxes are difficult to ensure waterproof, dustproof and electric shock resistance in harsh environments, and are prone to short circuits or fires due to impurities and rainwater entering.
A terminal box suitable for outdoor protection is designed, and a combination structure of box lid fixed connection, hinged box door, symmetrical setting adjustment shaft, PLC controller and terminal block are used. Combined with the design of heat dissipation port, control box, protective baffle and grounding wire, it achieves good dustproof, waterproof and electric shockproof effects.
Effectively prevent dust and rainwater from entering, ensure good heat dissipation of internal components, avoid short circuits and fires, and improve personal safety protection.
Smart Images
Figure CN222915475U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric power protection, and particularly relates to a terminal box suitable for outdoor protection. Background Art
[0002] With the rapid development of the power industry, industries such as wind power and photovoltaic have emerged one after another. Outdoor terminal boxes play a crucial role in the power system, while traditional outdoor terminal boxes often face various challenges. First of all, due to the complexity of the outdoor environment, the terminal box needs to have good waterproof, dustproof and anti-corrosion properties to cope with harsh weather conditions and chemical corrosion. Secondly, the terminal box also needs to have a high safety protection level to prevent accidental contact and damage by external objects or personnel. If a large amount of dust enters the terminal box and adheres to the electrical components for a long time, it will cause the components to heat up and catch fire. If rainwater or the like enters, it will also cause short circuits and even fires. Therefore, it is necessary to design a terminal box suitable for outdoor protection, which can have good dustproof, waterproof and electric shock prevention effects, and can be reasonably arranged to facilitate the disassembly of internal wiring terminals. Content of the Utility Model
[0003] In view of the above technical problems, the utility model provides a terminal box suitable for outdoor protection, which has good dustproof, waterproof and electric shock prevention effects, and can be reasonably arranged to avoid faults, so as to solve the problems of short circuits and fires caused by the entry of impurities and poor heat dissipation due to the tight connection of internal components.
[0004] To solve the above technical problems, a terminal box suitable for outdoor protection described in the utility model includes a terminal box, a box cover and a box door. The box cover is fixedly connected to the top of the terminal box, the box door is hinged to the terminal box, several symmetrically arranged first adjustment rails are fixedly connected to both sides inside the terminal box, a second adjustment rail is detachably connected between two opposite first adjustment rails, a PLC controller and a wiring terminal row are detachably connected between the two second adjustment rails, a heat dissipation port is opened on the side of the terminal box, a control box is fixedly connected to the side of the terminal box, a protective baffle is detachably connected to the side of the terminal box where the box door is opened, a grounding wire is fixedly connected to the box door, and the grounding wire passes through the protective baffle and is fixedly connected to the grounding bolt inside the terminal box.
[0005] Further, several cable holes are opened at the bottom inside the terminal box.
[0006] Further, the protective baffle and the terminal box are detachably connected by limit nails.
[0007] Further, a layer of sealing strip is fixedly connected between the inner side of the box door and the terminal box.
[0008] Further, the terminal block includes an outgoing line hole, an operation hole, an insulating seat, and an incoming line groove, and the outgoing line hole and the operation hole are located above the insulating seat.
[0009] Further, the upper and lower ends of the PLC controller and the terminal block are detachably connected to the second adjustment rail through a fixing plate.
[0010] Further, positioning holes and adjustment holes are provided on the first adjustment rail and the second adjustment rail. The second adjustment rail is detachably connected to the positioning holes and adjustment holes on the first adjustment rail through bolts, and the PLC controller and the terminal block are detachably connected to the positioning holes and adjustment holes on the second adjustment rail through bolts.
[0011] The utility model has the following advantages compared with the prior art:
[0012] 1. By fixedly connecting the box cover to the top of the terminal box, the utility model can protect the terminal box from rainwater entering. By relatively fixedly connecting a number of symmetrically arranged first adjustment rails on both sides inside the terminal box, and detachably connecting a second adjustment rail between two opposite first adjustment rails, the installation position can be freely adjusted according to the different sizes of electrical components, preventing poor heat dissipation caused by too close distances between components and between components and the box body. By providing heat dissipation openings on the side of the terminal box, the heat inside the terminal box can be dissipated in time to avoid fire. By fixedly connecting a control box on the side of the terminal box, the on-off of the current inside the terminal box can be centrally controlled. When working inside, the circuit can be disconnected outside to avoid electric shock to the human body. By detachably connecting a protective baffle on the side of the terminal box where the box door is opened, it can effectively prevent dust from entering the terminal box and prevent people from randomly touching the internal wires after opening the box, protecting personal safety. By providing a grounding wire inside the box, it can prevent the electricity on the box body from being introduced into the ground when electric leakage occurs in the terminal box, avoiding personal injury. There are fixedly connected limit pins, and a transparent protective baffle is detachably connected to the limit pins, which can block dust from entering the box body and prevent people from randomly touching and getting an electric shock after opening the box, protecting personal safety.
[0013] 2. By providing a number of cable holes on the inner bottom of the terminal box, the utility model can facilitate the entry and exit of internal cables. After installation, it is sealed with fireproof mud, which can not only prevent dust from entering but also prevent fire.
[0014] 3. By detachably connecting the protective baffle to the box door with limit pins, the utility model can facilitate the disassembly of the protective baffle and the maintenance of the equipment.
[0015] 4. By fixedly connecting a layer of sealing strip between the inner side of the box door and the terminal box, the utility model can ensure sufficient sealing when the box door is closed, reducing the entry of dust.
[0016] 5. The utility model connects the PLC controller and the terminal block through the fixed plate, which can facilitate the disassembly of components. At the same time, there is a certain space between the components and the adjustment rail, avoiding local overheating caused by too close a distance.
[0017] 6. By arranging positioning holes and adjustment holes on the adjustment rail, the utility model can adjust the positions between electrical components and between electrical components and the inner wall of the box body, preventing poor heat dissipation caused by too close a distance or unreasonable distribution between components and between components and the box body, thereby causing a fire. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of the utility model.
[0019] Figure 2 It is a schematic structural diagram of the terminal block.
[0020] Figure 3 It is an enlarged schematic structural diagram of the adjustment rail.
[0021] Figure 4 It is a partial schematic structural diagram of the protective baffle.
[0022] In the figure: 1, terminal box; 2, box cover; 3, PLC controller; 4, control box; 5, second adjustment rail; 51, positioning hole; 52, adjustment hole; 6, terminal block; 61, outlet hole; 62, operation hole; 63, insulating seat; 64, wire inlet groove; 7, protective baffle; 8, limit nail; 9, fixed plate; 10, grounding bolt; 11, grounding wire; 12, cable hole; 13, box door; 14, first adjustment rail; 15, sealing strip; 16, heat dissipation port. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following will further illustrate the utility model with reference to the accompanying drawings.
[0024] Such as Figures 1 to 4A terminal box suitable for outdoor protection as shown includes a terminal box 1, a box cover 2, and a box door 13. The box cover 2 is fixedly connected to the top of the terminal box 1, and the box door 13 is hinged to the terminal box 1. To facilitate adjusting the distance between components and the box body, a number of symmetrically arranged first adjusting rails 14 are fixedly connected to both sides inside the terminal box 1. A second adjusting rail 5 is detachably connected between two opposite first adjusting rails 14, and the distance between the second adjusting rail 5 and the first adjusting rail 14 can be freely adjusted. To enable sufficient heat dissipation for components, since the space between the two second adjusting rails 5 is hollow, the PLC controller 3 and the terminal block 6 are detachably connected between the two second adjusting rails 5 and the PLC controller 3 is arranged above the terminal block 6. To facilitate heat dissipation of the terminal box 1, a heat dissipation port 16 is opened on the side of the terminal box 1. A filter screen is arranged inside the heat dissipation port to prevent dust from entering, and the outside of the heat dissipation port is set with the air outlet downward to avoid the entry of rainwater and dust. To safely and conveniently control the power supply of the terminal box 1, a control box 4 is fixedly connected to the side of the terminal box 1, and the control box 4 is electrically connected to the terminal box 1. To prevent dust from entering and at the same time avoid personnel accidentally touching the inside of the terminal box 1 and getting an electric shock after opening the box door, a protective baffle 7 is detachably connected to the side of the terminal box 1 where the box door is opened. The protective baffle 7 is set as a transparent insulating board to facilitate personnel inspection and maintenance. To further ensure personal safety, a grounding wire 11 is fixedly connected to the box door 13, and the grounding wire 11 passes through the protective baffle 7 and is fixedly connected to the grounding bolt 10 inside the terminal box 1. When the terminal box 1 has a leakage situation, the electricity can be timely conducted into the ground to avoid the outer shell of the terminal box 1 being charged and hurting people.
[0025] To facilitate the entry and exit of internal cables and seal them with fireproof mud after installation, which can not only prevent dust from entering but also avoid the occurrence of fire, a number of cable holes 12 are opened at the inner bottom of the terminal box 1.
[0026] To facilitate the disassembly of the protective baffle, the protective baffle 7 is detachably connected to the terminal box 1 through a limit nail 8. The limit nail 8 is detachably connected to the box door frame through a bolt, and a same-shaped installation hole is opened on the protective baffle 7 to facilitate the disassembly of the protective baffle 7.
[0027] To ensure sufficient sealing when the box door is closed and reduce the entry of dust, a layer of sealing strip 15 is fixedly connected between the inner side of the box door 13 and the terminal box 1.
[0028] To prevent the internal wires from being randomly wound and causing heat generation, the terminal block 6 includes an outlet hole 61, an operation hole 62, an insulating seat 63, and an inlet wire groove 64, and the outlet hole 61 and the operation hole 62 are located above the insulating seat 63.
[0029] In order to provide a certain space for heat dissipation between components, the upper and lower ends of the PLC controller 3 and the terminal block 6 are detachably connected to the second adjustment rail through fixing plates.
[0030] In order to be able to freely adjust the distance between internal components and make a reasonable layout, positioning holes 51 and adjustment holes 52 are provided on the first adjustment rail 14 and the second adjustment rail 5. The positioning holes 51 and the adjustment holes 52 are distributed alternately. The second adjustment rail 5 is detachably connected to the positioning holes 51 and the adjustment holes 52 on the first adjustment rail 14 through bolts. The PLC controller 3 and the terminal block 6 are detachably connected to the positioning holes 51 and the adjustment holes 52 on the second adjustment rail 5 through bolts. The adjustment holes 52 are long strip-shaped holes that can move left and right, capable of adjusting the left-right distance. The positioning holes 51 are threaded round holes, used to lock and limit components.
[0031] The specific working process of the present utility model is as follows:
[0032] When the terminal box 1 is used outdoors, first install the terminal box 1 in a fixed place, and then install the first adjustment rail 14 inside the terminal box 1. During the installation process, pay attention to installing it relatively parallel on both sides of the inner wall of the box. By detachably installing the second adjustment rail 5 in the middle of the first adjustment rail 14, while facilitating the adjustment of the positions of internal components, it also avoids the occurrence of accidents caused by local overheating due to the components being too close to the inner wall of the terminal box 1. Control the position layout of internal components by adjusting the connection between the first adjustment rail 14 and the second adjustment rail 5. The fixing plate 9 is detachably connected to the second adjustment rail 5, which is convenient for movement and adjustment. The cable passes through the cable hole 12 at the bottom of the terminal box 1 and is connected to the incoming wire groove 64, and is sent out from the upper wire outlet hole 61 to be connected to the PLC controller 3. When the internal heat is too high, heat dissipation is carried out through the heat dissipation port 16 on the side of the box body. A filter screen is arranged inside the heat dissipation port 16 to prevent dust from entering. When an emergency failure occurs, the internal circuit of the terminal box 1 can be disconnected by operating the control box 4. When there is a leakage or other situation, the current on the box door 13 and the box body of the terminal box 1 is introduced into the grounding bolt 10 through the grounding wire 11 and then into the ground. At the same time, maintenance and inspection personnel observe the internal situation through the transparent protective baffle 7 to avoid random contact by personnel. At the same time, the sealing strip 15 on the box door 13 and the protective baffle 7 on the box frame can block the entry of dust. By following the above steps, the terminal box can prevent the entry of rainwater and dust outdoors, and at the same time can reasonably and flexibly adjust the positions of internal components, as well as protect against electric shock to the human body.
Claims
1. A terminal box suitable for outdoor protection, comprising a terminal box (1), a box cover (2), and a box door (13), characterized in that: The box cover (2) is fixedly connected to the top of the terminal box (1); the box door (13) is hinged on the terminal box (1); a plurality of symmetrically arranged first adjustment rails (14) are fixedly connected to the two sides of the terminal box (1); a second adjustment rail (5) is detachably connected between two opposite first adjustment rails (14); a PLC controller (3) and a terminal block (6) are detachably connected between the two second adjustment rails (5); a heat dissipation port (16) is provided on the side of the terminal box (1); a control box (4) is fixedly connected to the side of the terminal box (1); a protective baffle (7) is detachably connected to the side of the terminal box (1) where the box door is provided; a grounding wire (11) is fixedly connected to the box door (13); the grounding wire (11) passes through the protective baffle (7) and is fixedly connected to a grounding bolt (10) inside the terminal box (1).
2. The terminal box suitable for outdoor protection according to claim 1, characterized in that: A plurality of cable holes (12) are provided at the inner bottom of the terminal box (1).
3. The terminal box suitable for outdoor protection according to claim 1, characterized in that: The protective baffle (7) and the terminal box (1) are detachably connected via limiting pins (8).
4. The terminal box suitable for outdoor protection according to claim 1, characterized in that: A layer of sealing strip (15) is fixedly connected between the inner side of the box door (13) and the terminal box (1).
5. The terminal box suitable for outdoor protection according to claim 1, characterized in that: The wiring terminal block (6) comprises a wire outlet hole (61), an operating hole (62), an insulating seat (63), and a wire inlet groove (64); the wire outlet hole (61) and the operating hole (62) are located above the insulating seat (63).
6. The terminal box suitable for outdoor protection according to claim 1, characterized in that: The PLC controller (3) and the upper and lower ends of the wiring terminal block (6) are detachably connected between the second adjustment rails (5) via a fixing plate (9).
7. The terminal box suitable for outdoor protection according to claim 1, characterized in that: The first adjustment rail (14) and the second adjustment rail (5) are provided with positioning holes (51) and adjustment holes (52); the second adjustment rail (5) is detachably connected to the positioning hole (51) and the adjustment hole (52) on the first adjustment rail (14) by means of bolts; and the PLC controller (3) and the wiring terminal block (6) are detachably connected to the positioning hole (51) and the adjustment hole (52) on the second adjustment rail (5) by means of bolts.