Alternating-current low-voltage switch cabinet capable of automatically measuring and controlling electric energy quality

Abstract

The utility model relates to the technical field of alternating-current low-voltage switch cabinets, in particular to an alternating-current low-voltage switch cabinet capable of automatically measuring and controlling electric energy quality, which comprises a casing, a guide frame arranged in the casing and an opening and closing mechanism. The opening and closing mechanism is arranged in the machine shell and located beside the guide frame. The opening and closing mechanism comprises a sliding box, an opening and closing plate and an extending contact part. The multiple sliding boxes are arranged at the top of the guide frame in a sliding mode, and openings used for containing to-be-installed modules are formed in the tops of the sliding boxes. The multiple opening and closing plates are rotationally arranged on the two sides of the sliding box correspondingly. The multiple extending contact parts are slidably arranged at the bottom of the sliding box, and displacement grooves allowing the extending contact parts to slide are formed in the bottom of the sliding box. According to the technical scheme, through the opening and closing mechanism, the to-be-installed module can be conveniently and stably placed in the extension contact part and the sliding box, and the difficulty of butt joint with the opening of the sliding box when the module is installed is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of AC low-voltage switch cabinets, and specifically relates to an AC low-voltage switch cabinet for automatic power quality measurement and control. Background Art

[0002] In the power system, as a key device for power transmission, distribution, and power conversion, the performance and reliability of the AC low-voltage switch cabinet are directly related to the stability and safety of the entire power system. With the rapid development of smart grid technology and the continuous increase of power load, higher requirements are put forward for the automation, intelligence, and power quality measurement and control capabilities of AC low-voltage switch cabinets.

[0003] However, in the prior art, when installing modules in an AC low-voltage switch cabinet for automatic power quality measurement and control, many challenges are still faced. Traditional installation methods often require aligning the modules, which not only increases the complexity and difficulty of installation but also may lead to installation errors, affecting the overall performance and reliability of the equipment. Specifically, due to the inaccurate interface design between modules or improper operation during the installation process, the modules are prone to deviation during docking, thus affecting the stability of electrical connection and the accuracy of data transmission.

[0004] Chinese Patent Authorization Publication No. CN212751803 discloses a modular fully controlled power quality device, including a cabinet body. Support rods are symmetrically arranged in the cabinet body. Circuit breakers are fixedly connected to the support rods. The circuit breakers are wire-connected to the bus system. A compensation and filtering module unit and an active filter module unit are fixedly connected to the support rods. The compensation and filtering module unit and the active filter module unit are arranged on a baffle. The baffle is arranged on the support rod. The baffles are evenly distributed on the support rod. Module rooms are arranged on the baffles. A secondary control room is arranged on the cabinet body. A base is arranged below the cabinet body. Handles are fixedly connected to the compensation and filtering module unit and the active filter module unit, which has the advantage of convenient on-site maintenance.

[0005] However, in actual use of the above structure, although the modules adopt a drawer structure, which is convenient for maintenance and repair, in actual operation, it may be difficult to repair due to the large weight of the modules or inconvenient installation positions. Summary of the Utility Model

[0006] In view of the above problems, an AC low-voltage switch cabinet for automatic power quality measurement and control is provided, which solves the problem that the modules are prone to deviation during installation and docking through an opening and closing mechanism.

[0007] To solve the problems of the prior art, the utility model provides an AC low-voltage switch cabinet for automatic power quality measurement and control, which includes a machine shell and a guide frame arranged inside the machine shell. The AC low-voltage switch cabinet further includes a switching mechanism; the switching mechanism is arranged inside the machine shell and beside the guide frame. The switching mechanism includes a sliding box, a switching plate and an extended contact part; there are multiple sliding boxes which are respectively slidably arranged on the top of the guide frame, and an opening for placing modules to be installed is provided on the top of the sliding box; there are multiple switching plates which are respectively rotatably arranged on both sides of the sliding box; there are multiple extended contact parts which are respectively slidably arranged on the bottom of the sliding box, and a displacement groove for the extended contact part to slide is provided on the bottom of the sliding box.

[0008] Preferably, the switching mechanism further includes mounting plates and telescopic springs; there are multiple mounting plates which are respectively arranged beside the sliding box, and all the multiple mounting plates are beside the switching plate; there are multiple telescopic springs which are respectively arranged on one side of the mounting plate. One end of the telescopic spring is fixed to the mounting plate, and the other end of the telescopic spring is fixed to the switching plate.

[0009] Preferably, the switching mechanism further includes sliding blocks; horizontal grooves for the sliding blocks to slide are provided on the top of the extended contact part; there are multiple sliding blocks which are respectively slidably arranged on the top of the extended contact part, and all the multiple sliding blocks are L-shaped structures.

[0010] Preferably, the switching mechanism further includes handles; there are multiple handles which are respectively arranged on the top of the sliding box, and through grooves are provided on the top of all the multiple handles.

[0011] Preferably, the switching mechanism further includes guide posts and connecting rods; there are multiple guide posts which are respectively arranged at the bottom of the two switching plates; the connecting rod is rotatably arranged outside the guide post. One end of the connecting rod is rotatably connected to the guide post, and the other end of the connecting rod is rotatably connected to the sliding block.

[0012] Preferably, the switching mechanism further includes energized electromagnets; the sliding box is made of iron material; there are multiple energized electromagnets which are respectively arranged beside the machine shell, and all the multiple energized electromagnets correspond to the positions of the sliding box.

[0013] Preferably, the switching mechanism further includes energized electromagnets; the sliding box is made of iron material; there are multiple energized electromagnets which are respectively arranged beside the machine shell, and all the multiple energized electromagnets correspond to the positions of the sliding box.

[0014] Preferably, a ventilation plate is arranged on the top of the guide frame, and multiple avoidance grooves for air circulation are provided on the top of the ventilation plate.

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] 1. The utility model facilitates the stable placement of the module to be installed inside the extended contact part and the sliding box by setting an opening and closing mechanism, and effectively reduces the difficulty of docking with the opening of the sliding box when installing the module.

[0017] 2. By setting the guiding column and the connecting rod, the utility model enables the sliding block to abut against the module to be installed and push the module to be installed into the sliding box, realizing the rapid installation of the module to be installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the three-dimensional structure diagram of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model from the first perspective;

[0019] Figure 2 is the front view structure diagram of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model;

[0020] Figure 3 is the partial sectional three-dimensional structure diagram of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model;

[0021] Figure 4 is the three-dimensional structure diagram of the guiding frame and the sliding box of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model;

[0022] Figure 5 is the three-dimensional structure diagram of the opening and closing plate of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model in the open state and the sliding box in the sliding state;

[0023] Figure 6 is the top view structure diagram of the sliding box of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model;

[0024] Figure 7 is Figure 6 the enlarged structure diagram at position A in

[0025] Figure 8 is the three-dimensional structure diagram of the extended contact part of an AC low-voltage switch cabinet for automatic power quality measurement and control of the utility model.

[0026] The reference numerals in the drawings are: 1, machine shell; 2, guiding frame; 3, opening and closing mechanism; 31, sliding box; 32, opening and closing plate; 33, extended contact part; 34, mounting plate; 35, telescopic spring; 36, sliding block; 37, handle; 38, guiding column; 39, connecting rod; 391, through electromagnet; 4, ventilation device; 5, ventilation plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To further understand the features, technical means, specific purposes, and functions of the present utility model, the following provides a more detailed description of the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figures 1-5 As shown, an AC low-voltage switchgear for automatic power quality measurement and control includes a machine case 1 and a guiding frame 2 disposed inside the machine case 1. The AC low-voltage switchgear further includes a switching mechanism 3; the switching mechanism 3 is disposed inside the machine case 1 and beside the guiding frame 2. The switching mechanism 3 includes a sliding box 31, a switching plate 32, and an extended contact part 33; there are multiple sliding boxes 31 which are respectively slidably disposed on the top of the guiding frame 2, and an opening for placing modules to be installed is provided on the top of the sliding box 31; there are multiple switching plates 32 which are respectively rotatably disposed on both sides of the sliding box 31; there are multiple extended contact parts 33 which are respectively slidably disposed on the bottom of the sliding box 31, and a displacement groove for the extended contact part 33 to slide is provided on the bottom of the sliding box 31.

[0029] A closing plate is rotatably disposed on the top of the machine case 1 beside the guiding frame 2. The user first needs to open the closing plate, and then pull the sliding box 31 to move the sliding box 31 along the guiding frame 2 until it moves out beside the guiding frame 2. Then, the user pushes the sliding box 31 to move it reversely along the guiding frame 2 into the interior of the machine case 1. Subsequently, the switching plate 32 contacts the guiding frame 2 and gradually closes. During the closing process of the switching plate 32, the switching plate 32 drives the extended contact part 33 to move until the extended contact part 33 completely enters the interior of the sliding box 31. It is convenient to stably place the module to be installed inside the extended contact part 33 and the sliding box 31, and effectively reduces the difficulty of docking with the opening of the sliding box 31 when installing the module.

[0030] See Figure 5 and Figure 6 As shown, the switching mechanism 3 further includes a mounting plate 34 and a telescopic spring 35; there are multiple mounting plates 34 which are respectively disposed beside the sliding box 31, and all the multiple mounting plates 34 are beside the switching plate 32; there are multiple telescopic springs 35 which are respectively disposed on one side of the mounting plate 34. One end of the telescopic spring 35 is fixed to the mounting plate 34, and the other end of the telescopic spring 35 is fixed to the switching plate 32.

[0031] In the initial state, the telescopic spring 35 is in a compressed state, and in this state, the sliding box 31 is not pulled out of the outside of the machine case 1. When the sliding box 31 moves beside the guiding frame 2. During this process, the compressed telescopic spring 35 relaxes appropriately, and the switching plate 32 loses the abutment with the guiding frame 2, so that the telescopic spring 35 can expand the switching plate 32 after release, making the opening of the sliding box 31 larger. It is convenient to place the module to be installed.

[0032] See Figure 6 andFigure 7 As shown, the opening and closing mechanism 3 further includes a sliding block 36; a horizontal groove for the sliding block 36 to slide is provided at the top of the extended contact portion 33; there are a plurality of sliding blocks 36 which are respectively slidably arranged at the top of the extended contact portion 33, and the plurality of sliding blocks 36 are all L-shaped structures.

[0033] When the module to be installed is placed on the top of the extended contact portion 33, the module to be installed contacts the sliding block 36 and is abutted by the sliding block 36. Then, after the module to be installed is placed, the user pushes the sliding box 31 into the interior of the housing 1. During this process, the sliding blocks 36 move relatively closer and push the abutted module to be installed into the interior of the sliding box 31.

[0034] See Figure 3 As shown, the opening and closing mechanism 3 further includes a handle 37; there are a plurality of handles 37 which are respectively arranged at the top of the sliding box 31, and through grooves are provided at the tops of the plurality of handles 37.

[0035] When the user opens and closes the sliding box 31, the closing plate should be opened first, and then the worker should hold the handle 37 tightly, so that the sliding box 31 can be installed and stored.

[0036] See Figure 5 and Figure 8 As shown, the opening and closing mechanism 3 further includes a guide post 38 and a connecting rod 39; there are a plurality of guide posts 38 which are respectively arranged at the bottoms of the two opening and closing plates 32; the connecting rod 39 is rotatably arranged outside the guide post 38, one end of the connecting rod 39 is rotatably connected to the guide post 38, and the other end of the connecting rod 39 is rotatably connected to the sliding block 36.

[0037] When the opening and closing plates 32 are in the unfolded state, during this process, the opening and closing plates 32 can drive the sliding blocks 36 to slide along the horizontal groove provided at the top of the extended contact portion 33 through the rotatably connected connecting rod 39, and make the two sliding blocks 36 move relatively away. In this state, the module to be installed is contacted and abutted by the sliding blocks 36. When the user pushes the sliding box 31 into the interior of the housing 1 through the handle 37, during this process, the opening and closing plates 32 can contact the guide frame 2 and drive the telescopic spring 35 to be in a compressed state. And when the opening and closing plates 32 are closed at this time, they can drive the sliding blocks 36 to slide along the horizontal groove provided at the top of the extended contact portion 33 through the rotatably connected connecting rod 39, and make the two sliding blocks 36 move relatively closer. Furthermore, the sliding blocks 36 can abut against the module to be installed and push the module to be installed into the interior of the sliding box 31. The rapid installation of the module to be installed is realized.

[0038] See Figure 3As shown, the opening and closing mechanism 3 further includes a through electromagnet 391; the sliding box 31 is made of iron material; there are a plurality of through electromagnets 391 which are respectively arranged beside the machine shell 1, and the positions of the plurality of through electromagnets 391 correspond to that of the sliding box 31.

[0039] After the user pushes the sliding box 31 to reset through the handle 37, the through electromagnet 391 is activated to adsorb the sliding box 31 that has moved inside the machine shell 1. This prevents the sliding box 31 from sliding out of the outside of the guide frame 2 due to the lack of a fixing mechanism after moving inside the machine shell 1. The through electromagnet 391 is preferably an electro-permanent magnet, which only consumes electricity during the magnetization and demagnetization moments and has zero energy consumption during the working state, avoiding the risk of demagnetization when the traditional electromagnet is powered off, meeting the essential safety requirements of power equipment, and having no substantial interference with sensitive components such as PLCs and relays.

[0040] See Figure 3 As shown, a ventilation device 4 is provided at the top of the machine shell 1, and the ventilation device 4 is located above the plurality of sliding boxes 31.

[0041] The ventilation device 4 is preferably a cooling fan. When the cooling fan is started, it can send air into the inside of the machine shell 1, thereby realizing uniform heat dissipation inside the machine shell 1.

[0042] See Figure 4 As shown, a ventilation plate 5 is provided at the top of the guide frame 2, and a plurality of avoidance grooves for air circulation are provided at the top of the ventilation plate 5.

[0043] When the air passes through the ventilation plate 5, it can be cut into a plurality of air flow channels by the avoidance grooves.

[0044] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An AC low-voltage switchgear cabinet for automatic power quality measurement and control, comprising a cabinet body (1) and a guide frame (2) arranged inside the cabinet body (1), characterized in that, The AC low-voltage switchgear cabinet further includes a switching mechanism (3); the switching mechanism (3) is arranged inside the cabinet (1) and beside the guide frame (2), and the switching mechanism (3) includes a sliding box (31), a switching plate (32) and an extended contact part (33); there are a plurality of sliding boxes (31) which are respectively slidably arranged on the top of the guide frame (2), and an opening for placing the module to be installed is formed in the top of the sliding box (31); there are a plurality of switching plates (32) which are respectively rotatably arranged on both sides of the sliding box (31); there are a plurality of extended contact parts (33) which are respectively slidably arranged at the bottom of the sliding box (31), and a displacement groove for the extended contact part (33) to slide is formed in the bottom of the sliding box (31).

2. The AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, characterized in that, The switching mechanism (3) further includes a mounting plate (34) and a telescopic spring (35); there are a plurality of mounting plates (34) which are respectively arranged beside the sliding box (31), and all the plurality of mounting plates (34) are beside the switching plate (32); there are a plurality of telescopic springs (35) which are respectively arranged on one side of the mounting plate (34), one end of the telescopic spring (35) is fixed to the mounting plate (34), and the other end of the telescopic spring (35) is fixed to the switching plate (32).

3. The AC low-voltage switchgear for automatic power quality measurement and control according to claim 2, characterized in that, The switching mechanism (3) further includes a sliding block (36); a horizontal groove for the sliding block (36) to slide is formed in the top of the extended contact part (33); there are a plurality of sliding blocks (36) which are respectively slidably arranged on the top of the extended contact part (33), and all the plurality of sliding blocks (36) are L-shaped structures.

4. An AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, characterized in that, The switching mechanism (3) further includes a handle (37); there are a plurality of handles (37) which are respectively arranged on the top of the sliding box (31), and a through groove is formed in the top of all the plurality of handles (37).

5. An AC low-voltage switchgear for automatic power quality measurement and control according to claim 3, characterized in that, The switching mechanism (3) further includes a guide post (38) and a connecting rod (39); there are a plurality of guide posts (38) which are respectively arranged at the bottom of the two switching plates (32); the connecting rod (39) is rotatably arranged outside the guide post (38), one end of the connecting rod (39) is rotatably connected to the guide post (38), and the other end of the connecting rod (39) is rotatably connected to the sliding block (36).

6. The AC low-voltage switchgear for automatic power quality measurement and control according to claim 2, characterized in that, The switching mechanism (3) further includes a through electromagnet (391); the sliding box (31) is made of iron material; there are a plurality of through electromagnets (391) which are respectively arranged beside the cabinet (1), and all the plurality of through electromagnets (391) correspond to the position of the sliding box (31).

7. An AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, characterized in that, A ventilation device (4) is arranged on the top of the cabinet (1), and the ventilation device (4) is above the plurality of sliding boxes (31).

8. An AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, characterized in that, A ventilation plate (5) is arranged on the top of the guide frame (2), and a plurality of avoidance grooves for air circulation are formed in the top of the ventilation plate (5).

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