Contact box roller shutter shielding device for high-voltage switch cabinet
By designing a contact box roller blind shading device in a high-voltage switch cabinet, the contact is blocked and uncovered by sliding the curtain, which solves the problem of dust pollution in the contact box, and achieves the clean and maintenance of the contacts and safe and reliable use.
Patent Information
- Application Number
- CN202422397781.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In existing high-voltage switch cabinets, the contacts in the contact box are easily contaminated by external dust, which affects the use effect.
A contact box roller blind shading device is designed, including a tubular motor, a reel, a guide rail and a limit switch. The contacts are blocked and uncovered by sliding the curtain to ensure clean contacts.
Keep the contacts clean and ensure good working condition. They are simple in structure, flexible in movement, safe and reliable in order to be easy to use.
Smart Images
Figure CN223206632U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switch cabinet accessories, in particular to a contact box rolling curtain shielding device for a high-voltage switch cabinet. Background Art
[0002] KYN61 metal-clad center-mounted switchgear is suitable for receiving and distributing electrical energy and controlling, protecting and detecting circuits. In addition to being widely used in general power systems, it can also be used in places with frequent operations.
[0003] A trolley and a contact box are provided in the switch cabinet. When the contacts in the contact box are not in contact with the trolley, they will be in contact with the outside world. At this time, there is a possibility that external dust will enter the inside of the contact box, affecting the subsequent use of the contacts. There are certain deficiencies.
[0004] Therefore, a contact box rolling curtain shielding device for a high-voltage switch cabinet is provided to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and to propose a contact box rolling curtain shielding device for a high-voltage switch cabinet.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A contact box rolling curtain shielding device for a high-voltage switch cabinet comprises a switch cabinet body, a contact box is provided on the switch cabinet body, and further comprises:
[0008] a tubular motor connected to the contact box, wherein the tubular motor is located above the contacts in the contact box;
[0009] A reel is mounted on the tubular motor, and a blackout curtain is wound around the reel;
[0010] Two sets of guide rails are installed in the contact box, and the shielding curtain is slidably connected in the two sets of guide rails, and the shielding curtain is used to shield the contacts in the contact box;
[0011] An upper limit switch and a lower limit switch are both installed in the contact box. Both the upper limit switch and the lower limit switch are used to detect the position of the shielding curtain. When the shielding curtain slides from the upper top to the lower top in the guide rail, it will first contact the upper limit switch and then contact the lower limit switch. When only the upper limit switch is contacted, the shielding curtain leaks the contacts in the contact box and contacts the outside world. When the shielding curtain contacts the upper limit switch and the lower limit switch at the same time, the shielding curtain blocks the contacts in the contact box.
[0012] The working limit switch and the test limit switch are both installed in the contact box. When the trolley slides in the contact box, it can squeeze the working limit switch and the test limit switch respectively to control the position of the shielding curtain in the guide rail.
[0013] Preferably, both ends of the tubular motor are fixedly connected with mounting seats, and the mounting seats are used to install the tubular motor in the contact box.
[0014] Preferably, a mounting plate is fixedly connected to the bottom of the guide rail, and the mounting plate is used to install the guide rail in the contact box.
[0015] Preferably, an opening is provided on the guide rail, and the opening is used to block the contact between the curtain and the upper limit switch and the lower limit switch.
[0016] Compared with the prior art, the present invention provides a contact box rolling curtain shielding device for a high-voltage switch cabinet, which has the following beneficial effects:
[0017] The utility model can keep the contacts clean and ensure a good working state by setting the shielding curtain, and does not affect the subsequent use of the contacts. It has the advantages of simple structure, flexible action, safety and reliability, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of a contact box rolling curtain shielding device for a high-voltage switch cabinet proposed in this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of a contact box rolling curtain shielding device for a high-voltage switch cabinet proposed in this utility model. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the structure inside the contact box of a contact box rolling curtain shielding device for a high-voltage switch cabinet proposed in the utility model;
[0021] Figure 4 This utility model proposes a contact box rolling curtain shielding device for high-voltage switch cabinet Figure 3 Schematic diagram of the structure of part A;
[0022] Figure 5 This is a structural schematic diagram of the guide rail, mounting plate, reel and mounting seat in a contact box rolling curtain shielding device for a high-voltage switch cabinet proposed by the utility model.
[0023] In the figure: 1. Switchgear body; 101. Contact box; 2. Tubular motor; 3. Scroll; 4. Mounting base; 5. Guide rail; 501. Opening; 6. Mounting plate; 701. Upper limit switch; 702. Lower limit switch; 801. Working limit switch; 802. Test limit switch. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0025] Example:
[0026] Reference Figure 1-5 , a contact box roller curtain shielding device for a high-voltage switchgear, comprising a switchgear body 1, a contact box 101 being provided on the switchgear body 1, and further comprising: a tubular motor 2 connected in the contact box 101, the tubular motor 2 being located above the contacts in the contact box 101; a reel 3 being mounted on the tubular motor 2, and a shielding curtain being wound and connected on the reel 3; two sets of guide rails 5 being both mounted in the contact box 101, the shielding curtain being slidably connected in the two sets of guide rails 5, and the shielding curtain being used to shield the contacts in the contact box 101; an upper limit switch 701 and a lower limit switch 702 being both mounted in the contact box 101, the upper limit switch 701 and the lower limit switch 702 being used to detect the position of the shielding curtain, when the shielding curtain slides from the upper top to the lower top in the guide rail 5, it will first contact the upper limit switch 701, and then contact the lower limit switch 702, when it only contacts the upper limit switch 701. When the shielding curtain leaks the contacts in the contact box 101 and contacts the outside world, when the shielding curtain contacts the upper limit switch 701 and the lower limit switch 702 at the same time, the shielding curtain blocks the contacts in the contact box 101; the working limit switch 801 and the test limit switch 802 are both installed in the contact box 101. When the trolley slides in the contact box 101, it can squeeze the working limit switch 801 and the test limit switch 802 respectively to control the position of the shielding curtain in the guide rail 5. Both ends of the tubular motor 2 are fixedly connected to the mounting base 4, and the mounting base 4 is used to install the tubular motor 2 in the contact box 101. The bottom of the guide rail 5 is fixedly connected to the mounting plate 6, and the mounting plate 6 is used to install the guide rail 5 in the contact box 101. An opening 501 is provided on the guide rail 5, and the opening 501 is used to prevent the shielding curtain from contacting the upper limit switch 701 and the lower limit switch 702.
[0027] Taking the KYN61-40.5 cabinet as an example, the trolley is pushed inward from the slide rail in the contact box 101, first contacts the test limit switch 802, and then swings in towards the working limit switch 801. During this process, the test limit switch 802 is activated first, the tubular motor 2 is powered, and the tubular motor 2 drives the reel 3 to rotate. The shielding curtain plate on the reel 3 moves upward in the guide rail 5 and moves to the open state. At this time, the contacts in the contact box 101 leak out, as shown in FIG. Figure 1As shown, the trolley is then pushed to the working position, the contacts on the trolley come into contact with the contacts in the contact box 101, and at the same time the working limit switch 801 is actuated, and the tubular motor 2 is powered off.
[0028] When the use is completed, the trolley is swung out from the working position to the test position, the working limit switch 801 is actuated, the tubular motor 2 is powered, and the reel 3 rotates, driving the shielding curtain plate to move downward in the guide rail 5 to the closed state. At this time, the shielding curtain blocks the contacts to play a protective role, such as Figure 2 As shown, after the trolley moves to the test position, the test limit switch 802 is actuated, the tubular motor 2 is powered off, and the entire process is completed.
[0029] The utility model can keep the contacts clean and ensure a good working state by setting the shielding curtain, and does not affect the subsequent use of the contacts. It has the advantages of simple structure, flexible action, safety and reliability, and is easy to use.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A contact box rolling curtain shielding device for a high-voltage switch cabinet, comprising a switch cabinet body (1), wherein a contact box (101) is provided on the switch cabinet body (1), characterized in that: Also includes: A tubular motor (2) is connected in the contact box (101), and the tubular motor (2) is located above the contact point in the contact box (101); A reel (3) is mounted on the tubular motor (2), and a screen curtain is wound around and connected to the reel (3); Two sets of guide rails (5) are both installed in the contact box (101), and the shielding curtain is slidably connected in the two sets of guide rails (5), and the shielding curtain is used to shield the contacts in the contact box (101); An upper limit switch (701) and a lower limit switch (702) are both installed in the contact box (101). The upper limit switch (701) and the lower limit switch (702) are both used to detect the position of the shielding curtain. When the shielding curtain slides from the upper top to the lower top in the guide rail (5), it will first contact the upper limit switch (701) and then contact the lower limit switch (702). When only the upper limit switch (701) is contacted, the shielding curtain leaks the contacts in the contact box (101) and contacts the outside world. When the shielding curtain contacts the upper limit switch (701) and the lower limit switch (702) at the same time, the shielding curtain blocks the contacts in the contact box (101). The working limit switch (801) and the test limit switch (802) are both installed in the contact box (101). When the trolley slides in the contact box (101), the working limit switch (801) and the test limit switch (802) can be squeezed respectively to control the position of the screen curtain in the guide rail (5).
2. A contact box rolling curtain shielding device for a high-voltage switch cabinet according to claim 1, characterized in that: Both ends of the tubular motor (2) are fixedly connected to mounting seats (4), and the mounting seats (4) are used to mount the tubular motor (2) in the contact box (101).
3. A contact box rolling curtain shielding device for a high-voltage switch cabinet according to claim 2, characterized in that: A mounting plate (6) is fixedly connected to the bottom of the guide rail (5), and the mounting plate (6) is used to mount the guide rail (5) in the contact box (101).
4. A contact box rolling curtain shielding device for a high-voltage switch cabinet according to claim 1, characterized in that: An opening (501) is provided on the guide rail (5), and the opening (501) is used to block the contact between the curtain and the upper limit switch (701) and the lower limit switch (702).