Low voltage switchgear partition
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI CHANGFENG SENYUAN ELECTRIC CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-07-07
AI Technical Summary
While existing low-voltage switchgear partitions can block the risk of fire, they lack ventilation slots, resulting in poor heat dissipation, which can easily cause electrical components to age at high temperatures and increase the risk of fire.
The partition body is equipped with a waist-shaped hole and a sealing plate and a drive mechanism. Under normal conditions, it provides ventilation and heat dissipation, and in the event of a fire, the waist-shaped hole is sealed to prevent the spread of flames.
It effectively blocks the spread of flames without affecting heat dissipation, reduces the risk of fire, ensures the safety of electrical components, and provides time for fire extinguishing preparation.
Smart Images

Figure CN224472935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to low-voltage switchgear partitions. Background Technology
[0002] Low-voltage switchgear is widely used in power plants, industrial manufacturing, and building power distribution. The internal partitions of low-voltage switchgear prevent the spread of faults; that is, the partitions physically separate different electrical components, reducing the risk of an accident escalating. In the event of a fire in a low-voltage switchgear unit, the partitions can effectively isolate the fire. However, while existing partitions can effectively prevent fire hazards, common partitions used for isolation often lack ventilation slots on their surfaces. This hinders overall ventilation and heat dissipation of the low-voltage switchgear, potentially causing high-temperature aging of electrical components and further increasing the fire risk.
[0003] Therefore, we propose using low-voltage switchgear partitions to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a low-voltage switchgear partition.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A low-voltage switchgear partition includes a low-voltage switchgear body, an interior cavity of the low-voltage switchgear body, a partition body inside the cavity, an oblong hole on the partition body, a sealing plate at the bottom of the partition body for sealing the oblong hole, and a driving mechanism for driving the sealing plate to seal the oblong hole.
[0007] Preferably, the partition body can be horizontally fixed in the cavity, and the area of the partition body is the same as the horizontal cross-sectional area of the cavity.
[0008] Preferably, the waist-shaped hole penetrates the partition body.
[0009] Preferably, the sealing plate is slidably connected to the bottom of the partition body, and both the partition body and the sealing plate are provided with a fire-resistant coating.
[0010] Preferably, the driving mechanism includes a connecting plate connected to the sealing plate, a collar fixed to the connecting plate, a motor fixed to the bottom of the partition body, a screw fixed coaxially to the motor, and the screw thread passing through the collar.
[0011] Preferably, a temperature sensor is installed on the partition body.
[0012] Preferably, the driving mechanism further includes a light rod connected to the connecting plate, a positioning seat fixed at the bottom of the partition body, the light rod sliding through the positioning seat, and a first spring provided between the positioning seat and the connecting plate. The first spring is sleeved on the light rod, and a thermally sensitive glass column is provided at the end of the positioning seat away from the first spring and abutting against the light rod. A heat-conducting block is fixed on the partition body and attached to the thermally sensitive glass column.
[0013] Preferably, the partition body is slidably disposed inside the cavity, and several second springs are vertically disposed on both sides of the bottom of the partition body. The bottom of the several second springs is fixedly connected to the inner wall of the low-voltage switch cabinet body. Several round rods are vertically disposed at both ends of the top of the partition body. The interior of the low-voltage switch cabinet body is provided with protrusions corresponding to the round rods. The protrusions are provided with grooves, and hot melt adhesive blocks that abut against the round rods are provided in the grooves. The protrusions are provided with round holes above the grooves, and the round rods can slide through the round holes.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model provides a waist-shaped hole on the partition body and a sealing plate at the bottom of the partition body to block the waist-shaped hole. It also provides a driving mechanism to drive the sealing plate to block the waist-shaped hole. The waist-shaped hole allows the partition body to have good ventilation and heat dissipation. The sealing plate can block the waist-shaped hole in the event of a fire, thereby effectively isolating the fire. The whole system can achieve both ventilation and heat dissipation and fire prevention. Attached Figure Description
[0016] 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, 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 structure of the low-voltage switchgear body of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the partition body of this utility model;
[0019] Figure 3 This is a schematic diagram of the collar and screw of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the heat-conducting block of this utility model;
[0021] Figure 5 This is a schematic diagram of the sealing plate of this utility model;
[0022] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;
[0023] Figure 7 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0024] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;
[0025] Figure 9 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0026] Figure 10 for Figure 9 A magnified view of a section at point C.
[0027] In the diagram: 1. Low-voltage switchgear body; 2. Cavity; 3. Partition body; 4. Waist-shaped hole; 5. Sealing plate; 6. Connecting plate; 7. Collar; 8. Motor; 9. Screw; 10. Temperature sensor; 11. Smooth rod; 12. Positioning seat; 13. First spring; 14. Thermosensitive glass column; 15. Second spring; 16. Round rod; 17. Protrusion; 18. Hot melt adhesive block; 19. Round hole; 20. Heat-conducting block. 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] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] Example 1
[0031] Reference Figure 1 , Figure 2 as well as Figure 3The low-voltage switchgear includes a low-voltage switchgear body 1, the main body of which is rectangular. The low-voltage switchgear body 1 has an internal cavity 2, and a cabinet door for closing the cavity 2 is rotatably provided. A partition body 3 is provided inside the cavity 2, with an oblong hole 4 on the partition body 3. A sealing plate 5 for sealing the oblong hole 4 is provided at the bottom of the partition body 3, and a driving mechanism for driving the sealing plate 5 to seal the oblong hole 4 is provided. The low-voltage switchgear body 1 can house relevant electrical components. Multiple partition bodies 3 can be provided, dividing the cavity 2 into multiple layers.
[0032] As a technical optimization of this utility model, the partition body 3 can be horizontally fixedly installed in the cavity 2, and the area of the partition body 3 is the same as the horizontal cross-sectional area of the cavity 2.
[0033] As a technical optimization of this utility model, the waist-shaped hole 4 penetrates through the partition body 3. Multiple waist-shaped holes 4 can also be provided on each partition body 3, and the waist-shaped holes 4 can achieve the effect of air permeability.
[0034] As a technical optimization of this utility model, the sealing plate 5 is slidably connected to the bottom of the partition body 3, and both the partition body 3 and the sealing plate 5 are provided with a fire-resistant coating.
[0035] As an optimized technical solution of this utility model, the driving mechanism includes a connecting plate 6 connected to the sealing plate 5, a collar 7 fixed to the connecting plate 6, a motor 8 fixed to the bottom of the partition body 3, and a screw 9 coaxially fixed to the motor 8, with the screw 9 threaded through the collar 7. A temperature sensor 10 is installed on the partition body 3. The normal open flame temperature range is approximately between 700 and 2000 degrees Celsius. The temperature sensor 10 is generally a common laser sensor that can monitor the temperature within this range. If the temperature reaches the warning level, it will send a feedback to the motor 8, causing the motor 8 to start. The temperature sensor 10 is not limited to being installed on the partition body 3; it can also be installed inside the cavity 2. The start of the motor 8 drives the screw 9 to rotate, and the rotation of the screw 9 pushes the collar 7, along with the connecting plate 6, to move, thus moving the sealing plate 5 and allowing the sealing plate 5 to seal the oblong hole 4. The screw 9 has a self-locking effect.
[0036] Working principle:
[0037] Under normal conditions, the partition body 3 can serve as a separator, that is, physically separate electrical components. At the same time, the waist-shaped holes 4 on the partition body 3 can provide ventilation, ensuring airflow and forming a heat dissipation channel.
[0038] If a fire is detected in a partitioned layer, the control motor 8 will start. The motor 8 will drive the screw 9 to rotate, which will push the collar 7 and connecting plate 6 to move. This will move the sealing plate 5, allowing it to seal the oblong holes 4. The screw 9 has a self-locking effect. Once several oblong holes 4 are sealed, the partition body 3 can effectively isolate the open flame, effectively reducing the risk of the open flame spreading to other layers, effectively ensuring the integrity of electrical components in other layers, and effectively preventing the rapid spread of the fire, giving staff enough time to discover and extinguish the fire.
[0039] Example 2
[0040] Reference Figure 4 , Figure 5 as well as Figure 6 The difference between this embodiment and the above embodiments is that:
[0041] The drive mechanism also includes a light rod 11 connected to the connecting plate 6. A positioning seat 12 is fixed at the bottom of the partition body 3. The light rod 11 slides through the positioning seat 12, and a first spring 13 is provided between the positioning seat 12 and the connecting plate 6. The first spring 13 is sleeved on the light rod 11. A thermally sensitive glass column 14 is provided at the end of the positioning seat 12 away from the first spring 13 and abuts against the light rod 11. A heat-conducting block 20 is fixed on the partition body 3 and fits against the thermally sensitive glass column 14. The temperature threshold of the thermally sensitive glass column 14 is 93 degrees Celsius. When this temperature is reached, the thermally sensitive glass column 14 breaks. At this time, the light rod 11 has no obstruction, the first spring 13 contracts, and pulls the light rod 11 to move, thereby driving the connecting plate 6 and the corresponding sealing plates 5 to move. Finally, the sealing plates 5 seal the corresponding waist-shaped hole 4. Under normal circumstances, when the thermally sensitive glass column 14 is not broken, the sealing plates 5 do not seal the waist-shaped hole 4, and the waist-shaped hole 4 can perform normal ventilation.
[0042] Working principle:
[0043] If a fire occurs in a separated layer and a high temperature is detected, reaching the temperature threshold of the thermistor glass column 14, the thermistor glass column 14 will break. At this time, the smooth rod 11 will lack obstruction, the first spring 13 will contract, and pull the smooth rod 11 to move, thereby driving the connecting plate 6 and the corresponding sealing plates 5 to move. Ultimately, the sealing plates 5 will seal the corresponding oblong holes 4. After the oblong holes 4 are sealed, the partition body 3 can effectively isolate the open flame, effectively reducing the risk of the open flame spreading to other layers, effectively ensuring the integrity of electrical components in other layers, and effectively preventing the rapid spread of the fire, allowing sufficient time for staff to discover and extinguish the fire. The heat-conducting block 20 can conduct temperature to ensure that the thermistor glass column 14 responds in a timely manner.
[0044] Example 3
[0045] Reference Figure 7 , Figure 8 , Figure 9 as well as Figure 10 The difference between this embodiment and the embodiments described above is that:
[0046] The partition body 3 is slidably installed inside the cavity 2. Several second springs 15 are vertically installed on both sides of the bottom of the partition body 3. The bottoms of the second springs 15 are fixedly connected to the inner wall of the low-voltage switchgear body 1. Several round rods 16 are vertically installed at both ends of the top of the partition body 3. The interior of the low-voltage switchgear body 1 has protrusions 17 corresponding to the round rods 16. Each protrusion 17 has a groove, and a hot melt adhesive block 18 abuts against the round rod 16 is placed inside the groove. A round hole 19 is located above the groove on each protrusion 17, allowing the round rods 16 to slide through the round hole 19. The temperature threshold of the hot melt adhesive block 18 is 150 degrees Celsius. When this temperature is reached, the hot melt adhesive block 18 becomes liquid, at which point the round rods 16 are not obstructed, and the second springs 15 at the bottom of the partition body 3 push the partition body 3 upwards.
[0047] Working principle:
[0048] If a separate layer appears and a high-temperature fire is detected, the temperature reaches the temperature threshold of the hot melt adhesive block 18. When this temperature is reached, the hot melt adhesive block 18 becomes liquid. At this time, the several round rods 16 will not be blocked, and the several second springs 15 at the bottom of the partition body 3 will push the partition body 3 upward. The partition body 3 that is in action is located at the bottom of the fire layer. If the partition body 3 moves upward, it can reduce the fire space.
[0049] The partition body 3 described above is the structure of the partition body 3 in Embodiment 1 or Embodiment 2.
[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A low-voltage switchgear partition plate, comprising a low-voltage switchgear body (1), wherein a cavity (2) is arranged inside the low-voltage switchgear body (1), and characterized in that, The cavity (2) is provided with a partition body (3), the partition body (3) is provided with a waist-shaped hole (4), the bottom of the partition body (3) is provided with a sealing plate (5) for sealing the waist-shaped hole (4), and a driving mechanism for driving the sealing plate (5) to seal the waist-shaped hole (4) is provided.
2. Low voltage switchgear partition according to claim 1, characterized in that The partition body (3) can be horizontally fixed in the cavity (2), and the area of the partition body (3) is the same as the horizontal cross-sectional area of the cavity (2).
3. Low voltage switchgear partition according to claim 1, characterized in that The waist-shaped hole (4) penetrates the partition body (3).
4. Low voltage switchgear partition according to claim 1, characterized in that The sealing plate (5) is slidably connected to the bottom of the partition body (3), and both the partition body (3) and the sealing plate (5) are provided with a fire-resistant coating.
5. Low voltage switchgear partition according to claim 1, characterized in that The drive mechanism includes a connecting plate (6) connected to the sealing plate (5), a collar (7) fixed on the connecting plate (6), a motor (8) fixed at the bottom of the partition body (3), a screw (9) coaxially fixed on the motor (8), and the screw (9) threaded through the collar (7).
6. Low voltage switchgear partition according to claim 1, characterized in that A temperature sensor (10) is installed on the partition body (3).
7. Low voltage switchgear partition according to claim 5, characterized in that The driving mechanism also includes a light rod (11) connected to the connecting plate (6), a positioning seat (12) fixed at the bottom of the partition body (3), the light rod (11) slides through the positioning seat (12), and a first spring (13) is provided between the positioning seat (12) and the connecting plate (6). The first spring (13) is sleeved on the light rod (11), and a thermal glass column (14) is provided at the end of the positioning seat (12) away from the first spring (13) and abuts against the light rod (11). A heat-conducting block (20) is fixed on the partition body (3) and fits against the thermal glass column (14).
8. Low voltage switchgear partition according to claim 1, characterized in that The partition body (3) is slidably disposed inside the cavity (2). Several second springs (15) are vertically disposed on both sides of the bottom of the partition body (3). The bottom of the several second springs (15) is fixedly connected to the inner wall of the low-voltage switch cabinet body (1). Several round rods (16) are vertically disposed at both ends of the top of the partition body (3). The interior of the low-voltage switch cabinet body (1) is provided with protrusions (17) corresponding to the round rods (16). The protrusions (17) are provided with grooves, and hot melt adhesive blocks (18) that abut against the round rods (16) are provided in the grooves. The protrusions (17) are provided with round holes (19) above the grooves, and the round rods (16) can slide through the round holes (19).