Low-voltage switchgear assembly
By introducing support frames, limit frames, and reinforcing ribs into the drawers of low-voltage switchgear, the problem of drawer deformation due to suspension is solved, achieving stable support and positioning of the drawers, extending service life, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
In existing low-voltage switchgear, the drawers are prone to deformation during maintenance, which affects the normal use of the equipment and makes it difficult to reconnect the drawers due to the long maintenance time.
A support frame and a limiting frame are installed inside the drawer. The inner side of the support frame is equipped with reinforcing ribs and magnetic blocks. The drawer is stably supported and positioned by magnetic attraction and limiting grooves. The bottom of the support frame abuts against the bottom of the drawer, and the magnetic blocks are used to fix the drawer and perform power-off operations.
It effectively prevents drawers from becoming suspended and deformed, extends their service life, reduces production costs, provides strong support, is easy to process, and is suitable for mass production.
Smart Images
Figure CN224068115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear technology, specifically a low-voltage switchgear assembly. Background Technology
[0002] Low-voltage switchgear is a combination of multiple low-voltage switches and related control, measurement, and protection devices organically connected by switchgear manufacturers and assembled together with structural components. It plays a vital role in the normal operation of modern society.
[0003] Existing low-voltage switchgear assemblies (such as GCS AC low-voltage withdrawable switchgear assemblies) are easy to assemble, with various functional compartments strictly separated and different units housed in different drawers. These drawers are stored inside the equipment casing. When the equipment malfunctions, the drawers need to be pulled out of the casing for maintenance of the internal components. During maintenance, a large area of the drawer is suspended in the air, with the end furthest from the casing completely suspended under the weight of the drawer. Prolonged maintenance can cause slight deformation of the drawer. Over time, this deformation increases, leading to abnormal drawer operation until the drawer is difficult to insert back into the casing, thus affecting the normal use of the equipment. Therefore, it is necessary to develop an improved low-voltage switchgear assembly to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to provide a low-voltage switchgear assembly to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage switchgear assembly, including a housing, a drawer inside the housing, a support frame movably installed inside the housing, reinforcing ribs fixedly installed on the inner side of the support frame, two magnetic blocks three fixedly installed inside the support frame, six rectangular plates fixedly installed on the front of the housing, and inserts sliding left and right inside each of the six rectangular plates, with a magnetic block four fixedly installed on the side of each insert near the magnetic block three.
[0006] Preferably, the magnetic block four and magnetic block three are positioned correspondingly and magnetically attracted to each other, and the insert is inserted into the inside of the support frame.
[0007] Preferably, the insert has a limiting groove inside, and the support frame abuts against the bottom of the drawer.
[0008] Preferably, a plug is fixedly installed on the back of the drawer, and a socket is fixedly installed inside the outer casing.
[0009] Preferably, the plug is inserted into the inside of the socket.
[0010] Preferably, a magnetic block one is fixedly installed inside the outer shell, and a magnetic block two is fixedly installed on the back of the drawer. The magnetic block one and the magnetic block two are positioned correspondingly and are magnetically attracted to each other.
[0011] Preferably, two limiting brackets are fixedly installed inside the drawer, and the limiting brackets are slidably installed inside the outer shell.
[0012] Compared with the prior art, this utility model provides a low-voltage switchgear assembly, which has the following advantages:
[0013] 1. This low-voltage switchgear uses two limit brackets inside the drawer to support its movement. The support brackets, once positioned, always abut against the bottom of the drawer, further supporting the drawer, preventing slight deformation caused by the drawer being suspended, protecting the drawer, extending its service life, and reducing production costs.
[0014] 2. Based on this, the present invention further strengthens the overall rigidity of the support frame by using multiple reinforcing ribs, thus providing stronger support for the drawer.
[0015] 3. Based on this, the limiting frame, support frame and reinforcing ribs in this utility model are all made of aluminum alloy (e.g., 6061-T), which has sufficient hardness while being lightweight, easy to process, has a mature supply chain, is suitable for mass production, and has a high cost performance. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the maintenance state structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the drawer and its connected mechanism of the present invention;
[0020] Figure 4 This is an exploded view of the drawer and its connected mechanism of this utility model;
[0021] Figure 5 This is a cross-sectional structural diagram of the support frame and its connected mechanism of this utility model.
[0022] In the diagram: 1. Outer shell; 2. Drawer; 3. Plug; 4. Socket; 5. Magnetic block one; 6. Magnetic block two; 7. Limiting frame; 8. Support frame; 9. Reinforcing rib; 10. Magnetic block three; 11. Rectangular plate; 12. Insert block; 13. Magnetic block four. Detailed Implementation
[0023] 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.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] Example 1:
[0026] Please see Figure 1-4 This utility model provides a technical solution: a low-voltage switchgear assembly, including a housing 1, a drawer 2 inside the housing 1, a support frame 8 movably installed inside the housing 1, a reinforcing rib 9 fixedly installed on the inner side of the support frame 8, two magnetic blocks 10 fixedly installed inside the support frame 8, six rectangular plates 11 fixedly installed on the front of the housing 1, and inserts 12 slidably installed on the inside of each of the six rectangular plates 11, with a magnetic block 13 fixedly installed on the side of the inserts 12 near the magnetic blocks 10.
[0027] Furthermore, the magnetic block 13 and the magnetic block 10 are positioned correspondingly and magnetically attracted to each other, and the insert block 12 is inserted into the inside of the support frame 8 to limit the height of the support frame 8.
[0028] Furthermore, a limiting groove is provided inside the insert block 12, and the support frame 8 abuts against the bottom of the drawer 2 to further support the drawer 2. When the internal components of the drawer 2 are maintained for a long time, the support frame 8 can continuously support the drawer 2.
[0029] Furthermore, a plug 3 is fixedly installed on the back of drawer 2, and a socket 4 is fixedly installed inside the outer casing 1, so that the plug 3 is disconnected from the inside of the socket 4, thereby cutting off the power to the internal components of drawer 2 and facilitating maintenance.
[0030] Furthermore, plug 3 is inserted into the inside of socket 4 to complete the connection.
[0031] Furthermore, a magnetic block 5 is fixedly installed inside the outer shell 1, and a magnetic block 6 is fixedly installed on the back of the drawer 2. The magnetic blocks 5 and 6 are positioned correspondingly and magnetically attracted to each other, thus storing the drawer 2 inside the outer shell 1.
[0032] Example 2:
[0033] Please see Figure 4 Furthermore, in conjunction with Embodiment 1, it is further found that two limiting frames 7 are fixedly installed inside the drawer 2. The limiting frames 7 are slidably installed inside the outer shell 1, so that the drawer 2 moves smoothly and is limited after the drawer 2 is pulled out, thus providing support for the movement of the drawer 2.
[0034] In actual operation, when this device is in use and a component inside drawer 2 needs maintenance due to malfunction, pull the support frame 8 out of the outer shell 1 until it reaches its maximum extension length. Then, push the support frame 8 upwards to move it to the appropriate position according to the height of the drawer 2 requiring maintenance. At this time, the two rectangular plates 11 correspond to the two sides of the support frame 8. Then, push the two inserts 12 inwards to slide them inside the rectangular plates 11, so that both inserts 12 are inserted into the inside of the support frame 8. Since a magnetic block 13 is fixed to the side of the insert 12 near the magnetic block 3 10, after the insert 12 is inserted into the inside of the support frame 8, the magnetic block 3 10 and the magnetic block 4 13 attract each other to fix the position of the insert 12, thereby making the support frame 8... The height is determined, and then the drawer 2 that needs maintenance is pulled out, so that the plug 3 is disengaged from the socket 4, thereby de-energizing the internal components of drawer 2 and facilitating maintenance. During this process, the limit bracket 7 slides inside the outer shell 1, making the drawer 2 move smoothly and limiting its movement after it is pulled out, thus supporting the movement of drawer 2. When drawer 2 moves, the bottom of drawer 2 always rests against the top of the support bracket 8, thereby further supporting drawer 2. When the internal components of drawer 2 are maintained for a long time, the support bracket 8 can continuously support drawer 2, avoiding slight deformation caused by the bottom of drawer 2 being suspended, protecting drawer 2, extending its service life, and reducing production costs.
[0035] Furthermore, multiple reinforcing ribs 9 are fixedly installed on the inner side of the support frame 8, which further enhances the overall rigidity of the support frame 8 and provides stronger support for the drawer 2.
[0036] Furthermore, the limiting frame 7, support frame 8, and reinforcing rib 9 are all made of aluminum alloy (such as 6061-T), which is sufficiently hard while being lightweight, easy to process, has a mature supply chain, is suitable for mass production, and has a high cost performance.
[0037] Furthermore, two magnetic blocks 6 are fixedly installed on the back of drawer 2, corresponding to and attracting magnetic block 5 inside the outer shell 1. Magnetic block 5 and magnetic block 6 work together to store drawer 2 inside the outer shell 1.
[0038] It should be noted that the component is located inside drawer 2 and is not shown in the diagram.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. Low voltage switchgear assembly comprising a housing (1), characterized in that: The inside of the shell (1) is provided with a drawer (2), the inside of the shell (1) is movably provided with a support frame (8), the inner side of the support frame (8) is fixedly provided with a reinforcing rib (9), the inside of the support frame (8) is fixedly provided with two magnetic blocks three (10), the front of the shell (1) is fixedly provided with six rectangular plates (11), the inside of the six rectangular plates (11) is slidably provided with an insertion block (12) on the left and right sides, and the side, close to the magnetic block three (10), of the insertion block (12) is fixedly provided with a magnetic block four (13).
2. A low voltage switchgear assembly according to claim 1, characterized in that: The magnetic block four (13) is positionally corresponding and magnetically attractive to the magnetic block three (10), and the insertion block (12) is inserted into the inside of the support frame (8).
3. A low voltage switchgear assembly according to claim 2, characterized in that: The inside of the insertion block (12) is provided with a limiting groove, and the support frame (8) abuts against the bottom of the drawer (2).
4. A low voltage switchgear assembly according to claim 1, characterized in that: The back of the drawer (2) is fixedly provided with a plug (3), and the inside of the shell (1) is fixedly provided with a socket (4).
5. A low voltage switchgear assembly according to claim 4, characterised in that: The plug (3) is inserted into the inside of the socket (4).
6. A low voltage switchgear assembly according to claim 1, characterized in that: The inside of the shell (1) is fixedly provided with a magnetic block one (5), the back of the drawer (2) is fixedly provided with a magnetic block two (6), and the magnetic block one (5) is positionally corresponding and magnetically attractive to the magnetic block two (6).
7. A low voltage switchgear assembly according to claim 6, characterised in that: The inside of the drawer (2) is fixedly provided with two limiting frames (7), and the limiting frame (7) is slidably arranged in the inside of the shell (1).