Grid-connected cabinet with protection function

Abstract

The utility model provides a grid-connected cabinet with a protection function, belongs to the technical field of grid-connected cabinets, and is used for solving the technical problems that the existing grid-connected cabinet cannot play a buffering protection role when a cable is dragged, and the protection function is poor. Comprising a cabinet body, a threading hole is further formed in the back face of the cabinet body, two mounting frames are arranged on each of the left side and the right side in the cabinet body, fixing plates are fixed to the mounting frames, sliding rods are fixed between the two fixing plates at the corresponding positions, elastic rods are arranged on the two sliding rods in a sliding mode, springs are arranged on the sliding rods in a sleeving mode, and a cross rod is fixed between the two mounting frames close to the threading hole. A first clamping rod and a second clamping rod are arranged on the cross rod; according to the grid-connected cabinet with the protection function, when the cable is dragged, the first clamping rod and the second clamping rod can fix one end of the cable, electrical elements in the grid-connected cabinet are prevented from being damaged, the elastic rod can compress the spring, a buffering effect is provided for the cable, the cable is prevented from being directly broken or falling off, and the protection effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of grid-connected cabinet technology and relates to a grid-connected cabinet with protective function. Background Technology

[0002] The main component of a grid-connected cabinet is the frequency converter. Accessories include ammeters, frequency meters, voltmeters, pushbuttons, intermediate relays, circuit breakers, indicator lights, etc. A one-to-one grid-connected cabinet (one frequency converter driving one motor) typically consists of these components. However, a one-to-many grid-connected cabinet (one frequency converter driving multiple motors) should also include time-delay relays, thermal relays, contactors, etc. The main functions of a grid-connected cabinet are: to regulate the operating frequency of the equipment by adjusting the motor speed, reducing energy loss, ensuring smooth equipment startup, reducing damage to the motor from the large current generated during direct startup, and preventing the large current from impacting the power grid during startup.

[0003] Grid-connected cabinets require cable connections. The cables connected to the grid-connected cabinets usually come out from the back or bottom of the cabinets. The existing grid-connected cabinets and cables are rigidly connected. When the cables are dragged by external forces, the grid-connected cabinet may tip over or the cables may break, resulting in poor protection for the cables and the grid-connected cabinet.

[0004] Based on this, we designed a grid-connected cabinet with protective functions. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a grid-connected cabinet with protective functions. The technical problem to be solved by this device is: how to make the cables connected to the grid-connected cabinet have a buffering effect so that they can play a protective role when dragged.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A grid-connected cabinet with protective function includes a cabinet body. A cable threading hole is provided on the back of the cabinet body. Two mounting brackets are provided on the left and right sides of the cabinet body. Fixed plates are fixed on the mounting brackets. A sliding rod is fixed between the two fixed plates at corresponding positions. The two sliding rods are located on both sides of the cable threading hole. A spring rod is slidably provided on the two sliding rods. A spring for pushing the spring rod forward is sleeved on the sliding rod. A crossbar is fixed between the two mounting brackets near the cable threading hole. A first clamping rod and a second clamping rod for clamping cables are provided on the crossbar.

[0008] The elastic rod is fitted with a widened cylinder on its outer side, and several connecting plates are fixed between the widened cylinder and the elastic rod.

[0009] With the above structure, during use, the cable is wound upward from the bottom of the widened cylinder and clamped and fixed by the first clamping rod and the second clamping rod, so that the dragging of the cable will not damage the electrical components inside the grid-connected cabinet. Moreover, when the cable squeezes the widened cylinder, the widened cylinder is relatively wide, which can prevent the cable from being torn due to sudden force.

[0010] The slide bar is slidably mounted with a movable plate, and the two ends of the elastic rod are rotatably connected to the two movable plates respectively, and the two ends of the spring abut against the movable plate and the fixed plate respectively.

[0011] With the above structure, the elastic rod can not only slide along the slide bar to achieve the buffering effect of the cable, but also generate rolling friction between the cable and the widened cylinder when the cable moves, reducing friction and further preventing damage to the cable sheath.

[0012] The movable plate is provided with a first hook, and the two fixed plates near the thread hole are provided with a first locking hole.

[0013] With the above structure, when the cable is dragged severely, the spring rod will move a large distance, which may cause the first hook to insert into the first locking hole. At this time, the spring cannot drive the spring rod to return to its original position, prompting the operator to check whether the cable connection is loose or detached.

[0014] The first clamping rod is made of rubber, and several equally spaced grooves may be provided on the first clamping rod.

[0015] With the above structure, the groove allows the side of the first clamping rod near the second clamping rod to have a large deformation space, which can clamp cables of various diameters. Moreover, the rubber material has a large friction force, which can clamp the cable tightly.

[0016] Both ends of the second clamping rod are fixed with arc-shaped locking strips, and both ends of the arc-shaped locking strips are provided with second locking hooks, and the crossbar is provided with second locking holes corresponding to the second locking hooks.

[0017] With the above structure, during use, the operator can press the two arc-shaped clips to remove the second clamping rod, which facilitates wiring and maintenance.

[0018] Compared with existing technologies, this grid-connected cabinet with protective functions has the following advantages:

[0019] The cable is secured by a spring, a spring rod, a first clamping rod, and a second clamping rod. When the cable is dragged, the first and second clamping rods fix one end of the cable to prevent damage to electrical components in the grid-connected cabinet. The spring rod can compress the spring to provide extra length for the cable, achieving a buffering effect and preventing the cable from breaking or falling off directly, thus providing a protective effect.

[0020] When the cable is being pulled too hard, the first hook will insert into the first hole and lock the spring rod. At this time, the spring cannot drive the spring rod to reset, prompting the operator to check whether the cable connection is loose or detached, so as to ensure the normal use of the grid-connected cabinet.

[0021] The first clamping rod has a large deformation space on the side near the second clamping rod, which can clamp cables of various diameters. Moreover, the rubber material has a large friction force, which can clamp the cable tightly. The second clamping rod is easy to disassemble, which is convenient for operators to install and maintain. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the other side of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the cabinet in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of some components in this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the first clamping rod and the second clamping rod in this utility model.

[0027] In the diagram: 1. Cabinet; 2. Cable threading hole; 3. Mounting bracket; 4. Fixing plate; 5. Slide rod; 6. Elastic rod; 7. Spring; 8. Crossbar; 9. First clamping rod; 10. Second clamping rod; 11. Widened cylinder; 12. Moving plate; 13. First hook; 14. First locking hole; 15. Groove; 16. Arc-shaped locking strip; 17. Second hook; 18. Second locking hole. Detailed Implementation

[0028] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0029] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0030] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0031] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0032] Please see Figure 1-5 This embodiment provides a grid-connected cabinet with protective function, including a cabinet body 1. A cable threading hole 2 is provided on the back of the cabinet body 1, and two mounting brackets 3 are provided on the left and right sides of the interior of the cabinet body 1. A fixing plate 4 is fixed on the mounting bracket 3, and a sliding rod 5 is fixed between the two fixing plates 4 at corresponding positions. The two sliding rods 5 are respectively located on both sides of the cable threading hole 2. A spring rod 6 is slidably provided on the two sliding rods 5, and a spring 7 for pushing the spring rod 6 forward is sleeved on the sliding rod 5. A crossbar 8 is fixed between the two mounting brackets 3 near the cable threading hole 2. A first clamping rod 9 and a second clamping rod 10 for clamping cables are provided on the crossbar 8.

[0033] An extended cylinder 11 is fitted on the outer side of the elastic rod 6, and several connecting plates are fixed between the extended cylinder 11 and the elastic rod 6. In use, the cable is wound upward from the bottom of the extended cylinder 11 and clamped and fixed by the first clamping rod 9 and the second clamping rod 10, so that the dragging of the cable will not damage the electrical components inside the grid-connected cabinet. Moreover, when the cable squeezes the extended cylinder 11, the extended cylinder 11 is wide enough to prevent the cable from being suddenly torn by force.

[0034] A movable plate 12 is slidably mounted on the slide rod 5, and the two ends of the elastic rod 6 are rotatably connected to the two movable plates 12 respectively, and the two ends of the spring 7 abut against the movable plate 12 and the fixed plate 4 respectively; in use, the elastic rod 6 can not only slide along the slide rod 5 to achieve the buffering effect of the cable, but also generate rolling friction between the cable and the widened cylinder 11 when the cable moves, reducing the friction force and further preventing damage to the cable sheath.

[0035] The movable plate 12 is provided with a first hook 13, and the two fixed plates 4 near the wire hole 2 are provided with first locking holes 14. When in use, when the cable is dragged severely, the movement distance of the spring rod 6 is large, which will cause the first hook 13 to be inserted into the first locking hole 14. At this time, the spring 7 cannot drive the spring rod 6 to reset, prompting the operator to check whether the cable connection is loose or detached.

[0036] The first clamping rod 9 is made of rubber, and several equally spaced grooves 15 can be provided on the first clamping rod 9; the grooves 15 allow the side of the first clamping rod 9 near the second clamping rod 10 to have a large deformation space, which can clamp cables of various diameters, and the rubber material has a large friction force, which can clamp the cables tightly.

[0037] Both ends of the second clamping rod 10 are fixed with arc-shaped locking strips 16, and both ends of the arc-shaped locking strips 16 are provided with second hooks 17. The crossbar 8 is provided with second locking holes 18 corresponding to the second hooks 17. In use, the operator can press the two arc-shaped locking strips 16 to remove the second clamping rod 10 for easy wiring and maintenance.

[0038] In this embodiment, the above-mentioned fixing methods are the most commonly used fixing connection methods in the art, such as welding and bolt connection.

[0039] The working principle of this utility model:

[0040] During installation, the operator can first press the two arc-shaped clips 16 to remove the second clamping rod 10. Then, when connecting the cable, the cable is passed through the cable hole 2 into the cabinet 1. The cable is then passed from the bottom of the widened tube 11 upwards and connected to the electrical components. After connecting the cable, the second clamping rod 10 is reinstalled, and the cable is straightened. The second clamping rod 10 will cooperate with the first clamping rod 9 to clamp and fix the cable, preventing the cable from being dragged and affecting the connection with the electrical components. During use, when the cable is dragged, the cable will squeeze the widened tube 11 and compress the spring 7. The spring 7 provides a buffering effect, and there will be rolling friction between the cable and the widened tube 11. The friction is small and can avoid cable damage. When the dragging is more severe, the first hook 13 is inserted into the first clip hole 14. At this time, the spring 7 cannot drive the spring rod 6 to return to its original position, prompting the operator to check whether the cable connection is loose or detached to ensure the normal use of the parallel cabinet.

[0041] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A grid-connected cabinet with protective function, comprising a cabinet body (1), characterized in that, The cabinet (1) has a wire hole (2) on the back and two mounting brackets (3) are provided on the left and right sides of the cabinet (1). The mounting brackets (3) are fixed with fixing plates (4) and sliding rods (5) are fixed between the two fixing plates (4) at the corresponding positions. The two sliding rods (5) are located on both sides of the wire hole (2). The two sliding rods (5) are slidably provided with elastic rods (6) and springs (7) for pushing the elastic rods (6) forward are sleeved on the sliding rods (5). A crossbar (8) is fixed between the two mounting brackets (3) near the wire hole (2). The crossbar (8) is provided with a first clamping rod (9) and a second clamping rod (10) for clamping the cable.

2. A grid-connected cabinet with protective function according to claim 1, characterized in that, The elastic rod (6) is fitted with a widened cylinder (11) on its outer side, and several connecting plates are fixed between the widened cylinder (11) and the elastic rod (6).

3. A grid-connected cabinet with protective function according to claim 1, characterized in that, The sliding rod (5) is slidably provided with a movable plate (12), and the two ends of the elastic rod (6) are rotatably connected to the two movable plates (12) respectively, and the two ends of the spring (7) abut against the movable plate (12) and the fixed plate (4) respectively.

4. A grid-connected cabinet with protective function according to claim 3, characterized in that, The movable plate (12) is provided with a first hook (13), and the two fixed plates (4) near the thread hole (2) are provided with first holes (14).

5. A grid-connected cabinet with protective function according to claim 1, characterized in that, The first clamping rod (9) is made of rubber, and several equally spaced grooves (15) can be opened on the first clamping rod (9).

6. A grid-connected cabinet with protective function according to claim 1 or 5, characterized in that, Both ends of the second clamping rod (10) are fixed with arc-shaped clips (16), and both ends of the arc-shaped clips (16) are provided with second hooks (17), and the crossbar (8) is provided with a second card hole (18) corresponding to the second hook (17).

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