Safety low voltage switchgear with multiple closed doors
By designing multiple enclosed doors and safety lock structures in the low-voltage switchgear, the control instruments and knobs are isolated and protected, solving the problem of easy misoperation in existing low-voltage switchgear and improving safety and heat dissipation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN UNELECTRA ELECTRIC
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-26
AI Technical Summary
Existing low-voltage switchgear lacks effective isolation and protection measures, making it prone to electrical accidents due to misoperation or unauthorized operation, increasing the risk of electric shock and equipment damage.
The design incorporates multiple enclosed doors, including a front door, a small door, and a middle door. These doors are connected by safety locks. Control instruments and knobs are installed in the control room. The design utilizes glass observation windows and heat dissipation channels to isolate and protect critical operating components.
The design of multiple enclosed door structures and safety locks improves operational safety, avoids electrical faults caused by misoperation, enhances the protection effect of the equipment, and ensures the heat dissipation requirements of the internal structure through heat dissipation channels.
Smart Images
Figure CN224418278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage switchgear technology, specifically a safety low-voltage switchgear with multiple sealing doors. Background Technology
[0002] As a key piece of equipment in power systems, low-voltage switchgear's design and function directly affect the overall system's operational safety, stability, and maintenance efficiency. With the continuous expansion and increasing complexity of power systems, higher demands are placed on the safety performance and ease of operation of low-voltage switchgear. Existing low-voltage switchgear generally suffers from the risk of misoperation; traditional structures lack effective protection for instruments and knobs. Traditional switchgear typically employs a single-door design, lacking effective isolation and protection measures, making it prone to electrical accidents due to misoperation or unauthorized operation, increasing the risk of electric shock and equipment damage. Utility Model Content
[0003] The purpose of this invention is to provide a safety-type low-voltage switchgear with multiple enclosed doors to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a safety low-voltage switchgear with multiple enclosed doors, comprising:
[0005] A low-voltage switchgear, wherein a low-voltage switchgear front door is hinged to the front side of the low-voltage switchgear, and a low-voltage switchgear small door is hinged to the upper part of the low-voltage switchgear front door, and an observation window is provided on the low-voltage switchgear small door, the observation window being made of glass;
[0006] The low-voltage switchgear has a control compartment located behind the small door on the front door. Control instruments and knobs are installed on the front side of the control compartment, and a cable tray is installed on the rear side of the control compartment. The inner cavity of the low-voltage switchgear is hinged to a middle door located behind the front door. An inner door protective frame plate is installed above the control compartment on the rear side of the front door.
[0007] The beneficial effects of adopting the above technical solution are as follows: by providing a control room, control instruments and cable trays on the low-voltage switchgear, and by providing a small door on the front of the control room, control instruments, knobs and cable trays, it is easy to isolate and protect key operating components such as control instruments and knobs. When operators are performing other operating procedures, it is difficult for them to directly contact the control instruments and knobs, thereby avoiding electrical faults caused by misoperation.
[0008] As a further improvement of this utility model, a first safety lock is provided on one side of the small door of the low-voltage cabinet and connected to the front door of the low-voltage cabinet; a second safety lock is used to connect the side of the front door of the low-voltage cabinet that contacts the low-voltage switch cabinet; and a third safety lock is used to connect the side of the middle door of the low-voltage cabinet that contacts the low-voltage switch cabinet.
[0009] The beneficial effect of adopting the above technical solution is that by locking the front door, middle door, and small door of the low-voltage cabinet, the overall operational safety is improved.
[0010] As a further improvement of this utility model, a heat dissipation channel is provided at the lower part of the front door of the low-voltage cabinet, and a plurality of heat dissipation channels are provided, which are evenly distributed at the lower part of the front door of the low-voltage cabinet.
[0011] The beneficial effect of adopting the above technical solution is that by setting up several heat dissipation channels, it is convenient to dissipate heat from the internal structure of the low-voltage switchgear.
[0012] As a further improvement of this utility model, a data storage box located between the control room and the heat dissipation channel is installed on the rear side of the front door of the low-voltage cabinet.
[0013] The beneficial effects of adopting the above technical solution are: a document storage box is provided on the back of the front door of the low-voltage switchgear, which makes it convenient to place some document bags in the document storage box for use by staff when operating the electrical components inside the low-voltage switchgear.
[0014] As a further improvement of this utility model, the upper and lower sides of the door of the low-voltage cabinet and the upper and lower sides of the inner cavity of the low-voltage switch cabinet are provided with space.
[0015] The beneficial effects of adopting the above technical solution are: by leaving space on the upper and lower sides of the door of the low-voltage cabinet and the upper and lower sides of the inner cavity of the low-voltage switch cabinet, the cost is reduced and heat dissipation is achieved at the same time.
[0016] As a further improvement of this utility model, an integrated instrument is installed in the inner cavity of the low-voltage switch cabinet, and a square opening adapted to the integrated instrument is provided on the door of the low-voltage cabinet, with the front of the integrated instrument located inside the square opening.
[0017] The beneficial effects of adopting the above technical solution are: by opening a square opening on the door of the low-voltage switchgear, it is convenient for staff to operate the integrated instrument without opening the door of the low-voltage switchgear, thus preventing staff from accidentally touching other electrical components inside the low-voltage switchgear.
[0018] As a further improvement of this utility model, the first safety lock and the second safety lock are both located on the side close to the low-voltage switchgear, and the third safety lock is located on the side of the low-voltage switchgear door away from the first safety lock and the second safety lock.
[0019] The beneficial effects of adopting the above technical solution are: by setting the first safety lock and the second safety lock far apart from the middle door of the low-voltage cabinet, the front door and the middle door of the low-voltage cabinet can be opened separately from the side, so that the opening of the front door and the middle door of the low-voltage cabinet does not affect each other.
[0020] As a further improvement of this utility model, the front side of the control compartment is flush with the front side of the low-voltage cabinet front door, and the rear side of the control compartment is concave and convex from the low-voltage cabinet front door.
[0021] The beneficial effect of adopting the above technical solution is that by keeping the front side of the control room flush with the front side of the low-voltage switch cabinet door, the aesthetics of the front side of the low-voltage switch cabinet are guaranteed. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of the safety low-voltage switchgear with multiple sealing doors of this utility model;
[0024] Figure 2 This is a schematic diagram of the front and rear structure of the low-voltage switchgear with multiple sealing doors of the present invention.
[0025] Figure 3 This is a schematic diagram of the front door side structure of the safety low-voltage switchgear with multiple sealing doors of this utility model;
[0026] Figure 4 This is a schematic diagram of the door structure of the low-voltage switchgear with multiple sealing doors of the present invention.
[0027] In the diagram: 1. Low-voltage switchgear; 2. Front door of the low-voltage switchgear; 3. Small door of the low-voltage switchgear; 4. First safety lock; 5. Observation window; 6. Control instrument; 7. Second safety lock; 8. Heat dissipation channel; 9. Control room; 10. Document storage box; 11. Middle door of the low-voltage switchgear; 12. Third safety lock; 13. Integrated instrument; 14. Square opening; 15. Inner door protective frame; 16. Cable tray; 17. Knob. Detailed Implementation
[0028] 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.
[0029] Please see Figures 1-4This utility model provides a safety low-voltage switchgear with multiple sealing doors, including:
[0030] Low-voltage switchgear 1, with a low-voltage switchgear front door 2 hinged to the front side of the low-voltage switchgear 1, and a low-voltage switchgear small door 3 hinged to the upper part of the low-voltage switchgear front door 2, with an observation window 5 on the low-voltage switchgear small door 3, and the observation window 5 is made of glass.
[0031] The front door 2 of the low-voltage switchgear is equipped with a control compartment 9 located behind the small door 3 of the low-voltage switchgear. The front side of the control compartment 9 is equipped with a control instrument 6 and a knob 17. The rear side of the control compartment 9 is equipped with a cable tray 16. The inner cavity of the low-voltage switchgear 1 is hinged to a middle door 11 located behind the front door 2 of the low-voltage switchgear. The rear side of the front door 2 of the low-voltage switchgear is equipped with an inner door protective frame plate 15 located above the control compartment 9.
[0032] The beneficial effects of adopting the above technical solution are as follows: the low-voltage switchgear 1 is equipped with a control room 9, control instrument 6 and cable tray 16, and the control room 9, control instrument 6, knob 17 and cable tray 16 are equipped with a low-voltage cabinet door 3 on the front side, which facilitates the isolation and protection of key operating components such as control instrument 6 and knob 17. When the operator is performing other operating procedures, it is difficult to directly contact the control instrument 6 and knob 17, thereby avoiding electrical faults caused by misoperation.
[0033] In one embodiment of this utility model, a first safety lock 4 is provided on one side of the low-voltage cabinet small door 3 and connected to the low-voltage cabinet front door 2, a second safety lock 7 is used to connect the side of the low-voltage cabinet front door 2 that contacts the low-voltage switch cabinet 1, and a third safety lock 12 is used to connect the side of the low-voltage cabinet middle door 11 that contacts the low-voltage switch cabinet 1.
[0034] The beneficial effects of adopting the above technical solution are: by locking the front door 2, middle door 11, and small door 3 of the low-voltage cabinet, the overall operational safety is improved.
[0035] In one embodiment of this utility model, a heat dissipation channel 8 is provided at the lower part of the front door 2 of the low-voltage cabinet. Several heat dissipation channels 8 are provided and are evenly distributed at the lower part of the front door 2 of the low-voltage cabinet.
[0036] The beneficial effect of adopting the above technical solution is that by setting up several heat dissipation channels 8, it is convenient to dissipate heat from the internal structure of the low-voltage switchgear 1.
[0037] In one embodiment of this utility model, a data storage box 10 is installed on the rear side of the front door 2 of the low-voltage cabinet, located between the control room 9 and the heat dissipation channel 8.
[0038] The beneficial effect of adopting the above technical solution is that a document storage box 10 is provided on the back of the front door 2 of the low-voltage switchgear, which makes it convenient to place some document bags in the document storage box 10 so that the staff can use them when operating the internal electrical components of the low-voltage switchgear 1.
[0039] In one embodiment of this utility model, the upper and lower sides of the door 11 of the low-voltage cabinet and the upper and lower sides of the inner cavity of the low-voltage switch cabinet 1 are provided with space.
[0040] The beneficial effects of adopting the above technical solution are: by leaving space on the upper and lower sides of the low-voltage cabinet door 11 and the upper and lower sides of the inner cavity of the low-voltage switch cabinet 1, the cost is reduced and heat dissipation is achieved at the same time.
[0041] In one embodiment of this utility model, an integrated instrument 13 is installed in the inner cavity of the low-voltage switch cabinet 1, and a square opening 14 adapted to the integrated instrument 13 is provided on the middle door 11 of the low-voltage cabinet, with the front of the integrated instrument 13 located inside the square opening 14.
[0042] The beneficial effects of adopting the above technical solution are: by providing a square opening 14 on the low-voltage switchgear door 11, it is convenient for staff to operate the integrated instrument 13 without opening the low-voltage switchgear door 11, thus preventing staff from accidentally touching other electrical components inside the low-voltage switchgear 1.
[0043] In one embodiment of this utility model, the first safety lock 4 and the second safety lock 7 are simultaneously located on the side close to the low-voltage switchgear 1, and the third safety lock 12 is located on the side of the low-voltage switchgear door 11 away from the first safety lock 4 and the second safety lock 7.
[0044] The beneficial effect of adopting the above technical solution is that by setting the first safety lock 4 and the second safety lock 7 far apart from the low-voltage cabinet middle door 11, the low-voltage cabinet front door 2 and the low-voltage cabinet middle door 11 can be opened separately from the side, so that the opening of the low-voltage cabinet front door 2 and the low-voltage cabinet middle door 11 does not affect each other.
[0045] In one embodiment of this utility model, the front side of the control chamber 9 is flush with the front side of the low-voltage cabinet front door 2, and the rear side of the control chamber 9 protrudes backward from the low-voltage cabinet front door 2.
[0046] The beneficial effect of adopting the above technical solution is that by controlling the front side of the small room 9 to keep it flat with the front side of the low-voltage switch cabinet front door 2, the aesthetics of the front side of the low-voltage switch cabinet 1 are guaranteed.
[0047] This project aims to develop a low-voltage fixed switchgear with an integrated enclosed compartment structure. Through physical isolation, it eliminates the risk of accidental contact and improves operational safety. The project aligns with the trend towards intelligent and standardized power equipment, and can promote technological upgrading in the city's electrical equipment industry, filling a gap in the mid-to-high-end market. The product is expected to have wide demand in the power, industrial, and infrastructure sectors, yielding significant economic and social benefits.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A safety-type low-voltage switchgear with multiple sealed doors, characterized in that: include: A low-voltage switchgear, wherein a low-voltage switchgear front door is hinged to the front side of the low-voltage switchgear, and a low-voltage switchgear small door is hinged to the upper part of the low-voltage switchgear front door, and an observation window is provided on the low-voltage switchgear small door, the observation window being made of glass; The low-voltage switchgear has a control compartment located behind the small door on the front door. Control instruments and knobs are installed on the front side of the control compartment, and a cable tray is installed on the rear side of the control compartment. The inner cavity of the low-voltage switchgear is hinged to a middle door located behind the front door. An inner door protective frame plate is installed above the control compartment on the rear side of the front door.
2. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, A first safety lock is provided on one side of the small door of the low-voltage cabinet, which is connected to the front door of the low-voltage cabinet. A second safety lock is used to connect the side of the front door of the low-voltage cabinet that contacts the low-voltage switch cabinet. A third safety lock is used to connect the side of the middle door of the low-voltage cabinet that contacts the low-voltage switch cabinet.
3. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, The lower part of the front door of the low-voltage switchgear is provided with heat dissipation channels, and there are several heat dissipation channels, which are evenly distributed in the lower part of the front door of the low-voltage switchgear.
4. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, A data storage box is installed on the rear side of the front door of the low-voltage cabinet, located between the control room and the heat dissipation channel.
5. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, The upper and lower sides of the door of the low-voltage cabinet and the upper and lower sides of the inner cavity of the low-voltage switch cabinet are both left with space.
6. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, The low-voltage switchgear has an integrated instrument installed inside its cavity. The door of the low-voltage switchgear has a square opening adapted to the integrated instrument, and the front of the integrated instrument is located inside the square opening.
7. The safety low-voltage switchgear with multiple sealing doors according to claim 2, characterized in that, The first safety lock and the second safety lock are both located on the side closest to the low-voltage switchgear, and the third safety lock is located on the side of the low-voltage switchgear door away from the first safety lock and the second safety lock.
8. The safety low-voltage switchgear with multiple sealing doors according to claim 1, characterized in that, The front side of the control compartment is flush with the front side of the low-voltage cabinet front door, and the rear side of the control compartment protrudes backward from the low-voltage cabinet front door.