Detection equipment for overload protection function of frequency converter

Abstract

The utility model discloses a frequency converter overload protection function detection device, which relates to the technical field of electric power detection, and comprises a device body used for protecting frequency converter overload protection function detection parts; the access assembly is located on one side of the device body; and the fixing assembly is located at the bottom of the access assembly. According to the utility model, the deflector rod is poked to drive the baffle to move upwards, the limiting column is used for limiting at the same time, the spring is compressed to connect the cable with the socket, and when the cable needs to be disconnected from the socket, the cable is pulled out, and the baffle moves into the groove under the elastic force of the spring to complete the connection work. The fixing plate is fixed through the fixing screws, the cable is pushed into the movable groove, the cable is fastened through the shielding plate, the device can protect the safety of connecting points, the maintenance cost is reduced, the service life is prolonged, the installation mode is simple and flexible, and unattractiveness caused by disordered cable arrangement and possible cracking of an insulating layer are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of power testing technology, specifically a testing device for the overload protection function of frequency converters. Background Technology

[0002] Frequency conversion (VDC) involves changing the power supply frequency to regulate the load, thereby reducing power consumption, minimizing losses, and extending equipment lifespan. The core of VDC technology is the frequency converter, which automatically adjusts the motor's operating speed by converting the power supply frequency. It changes the fixed 50Hz mains frequency to a variable frequency of 30-130Hz, while also expanding the power supply voltage range to 142-270V, solving the problem of unstable mains voltage affecting electrical appliance operation. The technology of controlling AC power by changing the AC frequency is called VDC technology. Overload is a time-related concept, referring to a load exceeding the rated load by a certain multiple over a continuous period. A VDC overload protection detection device is a device used to detect changes in the VDC current value.

[0003] However, some existing inverter overload protection testing devices on the market do not have protective devices at the interface when plugging in the connectors. After long-term use, the interface will be damaged and dust will accumulate, leading to damage to the device and greatly affecting its performance. In addition, the large number of plugged-in wires can easily cause messy wiring, which can affect the appearance and even cause insulation layer to break and short circuit. Utility Model Content

[0004] The purpose of this utility model is to address the problem that some existing inverter overload protection function testing devices on the market lack protective devices at the plug-in port. After prolonged use, the interface will be damaged and dust will accumulate, leading to device failure and greatly affecting the performance. Furthermore, the large number of plugged-in wires can easily cause messy wiring, affecting aesthetics and even causing insulation layer breakage and short circuits. Therefore, this utility model provides an inverter overload protection function testing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a frequency converter overload protection function testing device, comprising:

[0006] The main body of the device is used to protect the components that detect the overload protection function of the frequency converter;

[0007] The access component is located on one side of the device body;

[0008] A fixed component, located at the bottom of the access component;

[0009] The access component includes multiple sets of sockets. Each set of sockets has a baffle on one side, a lever on the top of each set of baffles, a limiting post on the top of each set of levers, a spring on the outer side of each set of limiting posts, and a groove on the bottom of each set of baffles. The fixing component includes a connecting frame with a fixing plate on one side. The fixing plate has mounting holes at its four corners, and the bottom of the connecting frame has a groove with cover plates on both sides of the bottom of the groove.

[0010] As a further embodiment of this utility model: the device body includes a shell, and rubber pads are provided at the four corners of the bottom of the shell, and a detection device is provided inside the shell.

[0011] As a further improvement of this utility model: the top of the outer shell is provided with a cover plate, one side of the cover plate is provided with a connecting shaft, and the side of the cover plate away from the connecting shaft is provided with a handle.

[0012] As a further improvement of this utility model, all of the aforementioned baffles are movably connected to the outer shell via levers, springs, and limiting posts.

[0013] As a further improvement of this utility model: each of the mounting holes is provided with a fixing screw, and one side of the outer shell is provided with multiple sets of fixing holes. The fixing plate is detachably connected to the outer shell through fixing screws, mounting holes and fixing holes.

[0014] As a further improvement of this utility model: each of the two sets of cover plates is provided with a connecting rod at one end near the connecting frame, and both sets of cover plates are rotatably connected to the connecting frame through the connecting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The cable is connected to the frequency converter through the set access component. The lever on the top of the required connection port is pushed upward. The lever moves the baffle upward and is limited by the limit post. The spring is compressed to connect the cable to the port. When the cable needs to be disconnected from the port, the cable is pulled out. Under the elastic force of the spring, the baffle moves into the groove to complete the connection. This device can effectively protect the safety of the cable connection point, reduce maintenance costs and increase service life.

[0017] 2. Using the set fixing components, install the fixing plate to the corresponding position, pass the fixing screws through the mounting holes and fixing holes in sequence, and tighten them to fix the device. Then push the cable into the movable groove. The cable will push the two sets of cover plates inward. After the cable moves into the movable groove, the two sets of cover plates will rotate back to their original position under the elastic force of the connecting rod, thus securing the cable. This device can achieve the work of fixing and securing the cable. The installation method is simple and flexible, effectively avoiding messy wiring that leads to unsightly appearance and possible insulation layer breakage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a three-dimensional schematic diagram of the fixing component of this utility model.

[0022] In the diagram: 1. Device body; 101. Outer shell; 102. Rubber pad; 103. Cover plate; 104. Connecting shaft; 105. Handle; 106. Detection device; 2. Access component; 201. Socket; 202. Lever; 203. Spring; 204. Baffle; 205. Groove; 206. Limiting post; 3. Fixing component; 301. Connecting frame; 302. Fixing plate; 303. Mounting hole; 304. Cover plate; 305. Movable groove; 306. Connecting rod; 307. Fixing screw; 308. Fixing hole. 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 the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, 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, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0025] Please see Figures 1-4 In this embodiment of the utility model, a frequency converter overload protection function detection device includes:

[0026] The main body 1 is used to protect the components for detecting the overload protection function of the frequency converter;

[0027] Access component 2 is located on one side of the device body 1;

[0028] Fixed component 3 is located at the bottom of access component 2;

[0029] The access component 2 includes multiple sets of sockets 201. Each set of sockets 201 has a baffle 204 on one side. Each set of baffles 204 has a lever 202 on the top. Each set of levers 202 has a limiting post 206 on the top. Each set of limiting posts 206 has a spring 203 on the outside. Each set of baffles 204 has a groove 205 at the bottom. The fixing component 3 includes a connecting frame 301. Each set of connecting frame 301 has a fixing plate 302 on one side. Each set of fixing plate 302 has a mounting hole 303 at each of its four corners. Each set of connecting frame 301 has a movable groove 305 at the bottom. Each set of movable groove 305 has a cover plate 304 on both sides of its bottom.

[0030] Please refer to this carefully. Figure 1 and 3 The device body 1 includes a housing 101, with rubber pads 102 at the four corners of the bottom of the housing 101. Inside the housing 101 is a detection device 106, which is used to protect the overload protection function detection components of the frequency converter.

[0031] Please refer to this carefully. Figure 1 and 2 The top of the outer casing 101 is provided with a cover plate 103, a connecting shaft 104 is provided on one side of the cover plate 103, and a handle 105 is provided on the side of the cover plate 103 away from the connecting shaft 104, which facilitates the installation and maintenance of the internal components of the device.

[0032] Please refer to this carefully. Figure 3 Multiple baffles 204 are movably connected to the outer casing 101 via levers 202, springs 203, and limit posts 206. The springs 203 not only provide shock absorption but also make resetting easier, reducing the difficulty of operation.

[0033] Please refer to this carefully. Figure 1 and 4 The mounting holes 303 are all equipped with fixing screws 307 inside, and the outer casing 101 has multiple sets of fixing holes 308 on one side. The fixing plate 302 is detachably connected to the outer casing 101 through fixing screws 307, mounting holes 303 and fixing holes 308, which facilitates the use of devices at different angles.

[0034] Please refer to this carefully. Figure 4 Each of the two sets of cover plates 304 is equipped with a connecting rod 306 at one end near the connecting frame 301. Both sets of cover plates 304 are rotatably connected to the connecting frame 301 through the connecting rod 306, so that the cover plates 304 will automatically rotate back to their original position after no object pushes them. At the same time, the cover plates 304 reduce the detachment of cables due to external factors during use, thereby increasing the stability of the device.

[0035] The working principle of this utility model is as follows: First, open the cover plate 103 using the handle 105, install the frequency converter 106, and close the cover plate 103. Then, connect the cable to the frequency converter 106. Move the lever 202 at the top of the required connection socket 201 upwards. The lever 202 drives the baffle 204 upwards, which is simultaneously limited by the limiting post 206. The spring 203 is compressed, connecting the cable to the socket 201. When it is necessary to disconnect the cable from the socket 201, pull out the cable. Under the elastic force of the spring 203, the baffle 204 moves into the groove 205, completing the connection. At the same time, install the fixing plate 302 in the corresponding position and tighten the fixing screws. 307 passes through the mounting hole 303 and the fixing hole 308 in sequence and is tightened to fix the device. Then, the cable is pushed into the movable groove 305. The cable pushes the two sets of cover plates 304 inward. After the cable moves into the movable groove 305, the two sets of cover plates 304 return to their original position under the elastic force of the connecting rod 306, thus securing the cable. This device is easy to operate. The set access component 2 can effectively protect the safety of the cable connection point, reduce maintenance costs, and increase service life. The set fixing component 3 can realize the fixing and securing of the cable. The installation method is simple and flexible, effectively avoiding messy wiring that leads to unsightly appearance and possible insulation layer breakage.

[0036] 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 device for testing the overload protection function of a frequency converter, characterized in that, include: The device body (1) is used to protect the overload protection function detection components of the frequency converter; Access component (2) is located on one side of the device body (1); The fixed component (3) is located at the bottom of the access component (2); The access component (2) includes a socket (201), and there are multiple sets of sockets (201). Each set of sockets (201) has a baffle (204) on one side, a lever (202) on the top of each set of baffles (204), a limiting post (206) on the top of each set of levers (202), a spring (203) on the outside of each set of limiting posts (206), and a groove (205) on the bottom of each set of baffles (204). The fixing component (3) includes a connecting frame (301), a fixing plate (302) on one side of the connecting frame (301), mounting holes (303) at the four corners of the fixing plate (302), a movable groove (305) at the bottom of the connecting frame (301), and a cover plate (304) on both sides of the bottom of the movable groove (305).

2. The inverter overload protection function testing device according to claim 1, characterized in that, The device body (1) includes a housing (101), and rubber pads (102) are provided at the four corners of the bottom of the housing (101). A detection device (106) is provided inside the housing (101).

3. The inverter overload protection function testing device according to claim 2, characterized in that, The top of the outer casing (101) is provided with a cover plate (103), a connecting shaft (104) is provided on one side of the cover plate (103), and a handle (105) is provided on the side of the cover plate (103) away from the connecting shaft (104).

4. The inverter overload protection function testing device according to claim 1, characterized in that, All of the baffles (204) are movably connected to the outer shell (101) via levers (202), springs (203) and limiting posts (206).

5. The inverter overload protection function testing device according to claim 2, characterized in that, The mounting holes (303) are all equipped with fixing screws (307), and the outer shell (101) is provided with multiple sets of fixing holes (308) on one side. The fixing plate (302) is detachably connected to the outer shell (101) through fixing screws (307), mounting holes (303) and fixing holes (308).

6. The inverter overload protection function testing device according to claim 1, characterized in that, Both sets of the cover plates (304) are provided with a connecting rod (306) at one end near the connecting frame (301), and both sets of the cover plates (304) are rotatably connected to the connecting frame (301) through the connecting rod (306).

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