Novel mutual inductor parameter tester

Abstract

The utility model discloses a novel mutual inductor parameter tester, which belongs to the technical field of mutual inductor testing equipment, solves the problems that a tester body is damaged due to the fact that a protective door of an existing device is kept in an open state, external water is splashed everywhere and the water is easy to enter a heat dissipation cavity through heat dissipation holes during heat dissipation, and comprises a tester body, heat dissipation grooves are formed in the left side and the right side of the back face of the tester body, a heat dissipation assembly is arranged on the back face of the tester body, and the heat dissipation assembly comprises a back plate, a ventilation opening, a bolt, a baffle, a ventilation groove, a heat dissipation plate, an exhaust outlet, a mounting groove and a heat dissipation fan. Then the heat dissipation plate exchanges heat with the tester body, air is blown into the heat dissipation plate through the heat dissipation fan, then heat absorbed by the heat dissipation plate is dissipated, the heat dissipation groove is separated from external water through the heat dissipation plate, and the external water can only enter the heat dissipation plate.

Description

Technical Field

[0001] This utility model relates to the technical field of instrument transformer testing equipment, specifically a novel instrument transformer parameter tester. Background Technology

[0002] A current transformer tester is a device used to measure the parameters of current transformers in motors. A current transformer is an electrical component used to measure current and voltage. In variable frequency motor systems, current transformers are used to measure the motor current in order to control the motor speed and torque. Current transformers can proportionally convert high voltage or large current into standard low voltage or small current, which facilitates the standardization and miniaturization of measuring instruments, protection devices, and automatic control equipment.

[0003] A search revealed that patent application number 202322032092.9 discloses a variable frequency transformer tester, comprising a main body, a heat dissipation cavity, a fan, and a protective mechanism. The main body has a voltage measurement module and a power output module on its front side, and heat dissipation holes on its left and right sides. The heat dissipation cavity is located on both sides of the main body and is connected to the interior of the main body and the heat dissipation holes. The fan is installed inside the heat dissipation cavity. The protective mechanism is located inside the heat dissipation cavity near the heat dissipation holes to flexibly open and close the heat dissipation holes. The protective mechanism includes a protective door, guide rails, a moving component, and a driving component. Two protective doors are provided, each with guide rails at its top and bottom. The two protective doors move closer to or further apart along the guide rails. One end of the moving component is fixed to the protective door to move it, and the other end of the moving component is connected to the driving component.

[0004] Although the internal heat of the variable frequency transformer tester can be blown out through the heat dissipation holes by the fan, and the heat dissipation holes can be blocked by the protective door when not dissipating heat to reduce the infiltration of external dust and moisture into the body, the protective door remains open when the variable frequency transformer tester is dissipating heat. Water splashes everywhere and can easily enter the heat dissipation cavity through the heat dissipation holes, which may lead to damage to the tester body.

[0005] Therefore, we propose a novel instrument for testing the parameters of current transformers. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a novel instrument for testing the parameters of current transformers. This solves the problem that when existing devices are dissipating heat, the protective door remains open, allowing external water to splash everywhere and easily enter the heat dissipation cavity through the heat dissipation holes, thus damaging the instrument itself.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel instrument for testing the parameters of a current transformer, comprising an instrument body, a handle fixedly installed on the top surface of the instrument body, and heat dissipation grooves provided on the left and right sides of the back of the instrument body.

[0008] A heat dissipation assembly is provided on the back of the tester body. The heat dissipation assembly includes a back plate, vents, bolts, baffles, ventilation slots, heat dissipation plates, exhaust vents, mounting slots, and a cooling fan. The back plate is installed on the back of the tester body. Symmetrically distributed, hollow heat dissipation plates are fixedly installed on the left and right ends of the back plate near the tester body. The size of the heat dissipation plates is the same as the size of the heat dissipation slots. The heat dissipation plates are movably fitted inside the heat dissipation slots. An exhaust vent is opened on the side of the heat dissipation plate near the tester body. A mounting slot is opened on the top surface of the heat dissipation plate. A vent connected to the exhaust vent is opened on the back plate. A cooling fan is fixedly installed inside the mounting slot.

[0009] Preferably, the mounting slot and the exhaust vent are both connected to the hollow part inside the heat sink. The heat sink is made of pure copper. The heat sink absorbs the heat generated by the tester body during operation. A cooling fan blows air into the heat sink, and the air is then discharged through the exhaust vent and ventilation opening, keeping the heat sink's interior circulating so as to dissipate the heat absorbed by the heat sink and achieve the purpose of cooling the tester body.

[0010] Preferably, a baffle is fixedly installed on the inner wall of the vent, and ventilation slots are provided on the side wall of the baffle in a linear array. The baffle can prevent external dust from entering the interior of the heat sink, and the ventilation slots facilitate the exhaust of air from the vent.

[0011] Preferably, threaded holes are provided at the four corners of the back of the tester body, and bolts are provided at the four corners of the back plate. The specifications of the bolts match the specifications of the threaded holes. The back plate is detachably installed on the back of the tester body by means of bolts. The design of bolts and threaded holes facilitates the installation of the back plate on the back of the tester body and facilitates its disassembly.

[0012] Preferably, a silicone pad is adhered to the side of the back plate near the back of the tester body. The silicone pad helps to increase the sealing of the connection between the back plate and the tester body, while preventing the back plate from scratching the back of the tester body.

[0013] This utility model provides a novel instrument for testing the parameters of current transformers. It has the following beneficial effects:

[0014] This novel instrument for testing instrument parameters utilizes a heat sink plate that is snapped into the interior of a heat sink. The heat sink plate then exchanges heat with the instrument body. A cooling fan blows air into the heat sink plate, increasing the airflow rate and dissipating the absorbed heat. This allows for continuous heat exchange between the heat sink plate and the instrument body. The heat sink plate also isolates the heat sink from external water, preventing water from entering the heat sink and damaging the instrument. This solves the problem in existing devices where the protective door remains open during heat dissipation, allowing water to splash and enter the heat dissipation cavity through the ventilation holes, potentially damaging the instrument. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the testing instrument of this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the heat dissipation component of this utility model.

[0019] In the diagram: 1. Tester body; 11. Handle; 12. Heat sink; 13. Threaded hole; 2. Heat dissipation assembly; 21. Back plate; 22. Ventilation port; 23. Bolt; 24. Baffle; 25. Ventilation slot; 26. Heat sink plate; 27. Exhaust vent; 28. Mounting slot; 29. ​​Cooling fan. Detailed Implementation

[0020] 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.

[0021] Example 1:

[0022] like Figure 1-4As shown: The instrument includes a tester body 1. A handle 11 is fixedly installed on the top surface of the tester body 1. Heat dissipation slots 12 are provided on the left and right sides of the back of the tester body 1. A heat dissipation assembly 2 is provided on the back of the tester body 1. The heat dissipation assembly 2 includes a back plate 21, a vent 22, bolts 23, a baffle 24, a ventilation slot 25, a heat dissipation plate 26, an exhaust vent 27, a mounting slot 28, and a cooling fan 29. The back plate 21 is installed on the back of the tester body 1. Symmetrically distributed, hollow heat dissipation plates 26 are fixedly installed on the left and right ends of the back plate 21 near the tester body 1. The size of the heat dissipation plates 26 is the same as the size of the heat dissipation slots 12. The heat dissipation plates 26 are movably fitted inside the heat dissipation slots 12. An exhaust vent 27 is provided on the side of the heat dissipation plate 26 near the tester body 1. A mounting slot 28 is provided on the top surface of the heat dissipation plate 26. The back plate 21... A ventilation opening 22 is provided, which is connected to the exhaust vent 27. A cooling fan 29 is fixedly installed inside the mounting slot 28. Both the mounting slot 28 and the exhaust vent 27 are connected to the hollow part inside the heat sink 26. The heat sink 26 is made of pure copper. By snapping the heat sink 26 into the heat sink 12, the heat sink 26 will exchange heat with the test instrument body 1. By blowing air into the heat sink 26 through the cooling fan 29, the air circulation rate inside the heat sink 26 can be increased, thereby dissipating the heat absorbed by the heat sink 26. This allows the heat sink 26 to continuously exchange heat with the test instrument body 1. The heat sink 12 is separated from the external water body by the heat sink 26. The external water body can only enter the interior of the heat sink 26, avoiding the situation where the external water body enters the interior of the heat sink 12 and causes damage to the test instrument body 1.

[0023] Example 2:

[0024] like Figure 1 , 2 As shown in Figure 3: A baffle 24 is fixedly installed on the inner wall of the vent 22. Ventilation slots 25 arranged in a linear array are opened on the side wall of the baffle 24. Threaded holes 13 are opened at the four corners of the back of the tester body 1. Bolts 23 are set at the four corners of the back plate 21. The specifications of the bolts 23 match the specifications of the threaded holes 13. The back plate 21 is detachably installed on the back of the tester body 1 by means of bolts 23. A silicone pad is glued to the side of the back plate 21 near the back of the tester body 1. The baffle 24 can prevent external dust from entering the interior of the heat sink 26. The ventilation slots 25 facilitate the exhaust of air from the vent 22. The bolts 23 and threaded holes 13 make it easy to install the back plate 21 on the back of the tester body 1 and to disassemble it. The silicone pad increases the sealing of the connection between the back plate 21 and the tester body 1 and prevents the back plate 21 from scratching the back of the tester body 1.

[0025] The working principle and usage process of this utility model: When using the current transformer parameter tester, the heat sink 26 is snapped into the inside of the heat sink 12. The back plate 21 is installed on the back of the tester body 1 through the setting of bolts 23 and threaded holes 13. When the tester body 1 is working, heat exchange occurs between the heat sink 26 and the tester body 1. At the same time, the cooling fan 29 is started to blow air into the heat sink 26. Then, the air in the heat sink 26 is discharged through the exhaust port 27 and the ventilation port 22, which can increase the air circulation rate inside the heat sink 26 and dissipate the heat absorbed by the heat sink 26, so that the heat sink 26 can continuously exchange heat with the tester body 1.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel instrument for testing the parameters of a current transformer, comprising an instrument body (1), wherein a handle (11) is fixedly installed on the top surface of the instrument body (1), and heat dissipation grooves (12) are provided on the left and right sides of the back of the instrument body (1). Its features are: A heat dissipation assembly (2) is provided on the back of the test instrument body (1). The heat dissipation assembly (2) includes a back plate (21), a vent (22), a bolt (23), a baffle (24), a ventilation slot (25), a heat dissipation plate (26), an exhaust port (27), a mounting slot (28), and a cooling fan (29). The back plate (21) is installed on the back of the test instrument body (1). Symmetrically distributed and hollow heat dissipation fans are fixedly installed on the left and right ends of the back plate (21) near the test instrument body (1). The heat sink (26) is the same size as the heat sink (12). The heat sink (26) is movably fitted inside the heat sink (12). The heat sink (26) has an exhaust vent (27) on the side of the heat sink (26) close to the tester body (1). The top surface of the heat sink (26) has an installation groove (28). The back plate (21) has a ventilation opening (22) connected to the exhaust vent (27). A cooling fan (29) is fixedly installed inside the installation groove (28).

2. The novel instrument for testing current transformer parameters according to claim 1, characterized in that: The mounting slot (28) and the exhaust port (27) are both connected to the hollow part inside the heat sink (26), which is made of pure copper.

3. The novel instrument for testing current transformer parameters according to claim 1, characterized in that: A baffle (24) is fixedly installed on the inner wall of the vent (22), and ventilation slots (25) arranged in a linear array are provided on the side wall of the baffle (24).

4. A novel instrument for testing the parameters of a current transformer according to claim 1, characterized in that: The tester body (1) has threaded holes (13) at the four corners on the back, and bolts (23) are provided at the four corners of the back plate (21). The specifications of the bolts (23) match the specifications of the threaded holes (13). The back plate (21) is detachably installed on the back of the tester body (1) by means of the bolts (23).

5. A novel instrument for testing the parameters of a current transformer according to claim 1, characterized in that: A silicone pad is attached to the side of the back plate (21) near the back of the tester body (1).

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