Silicon steel sheet magnetic performance testing device

Abstract

The utility model belongs to the technical field of silicon steel sheet magnetic performance testing, and particularly relates to a silicon steel sheet magnetic performance testing device which comprises a tester body, a display screen and a testing connector, the display screen and the testing connector are integrally connected with the front end of the tester body, a heat dissipation plate is integrally connected with the top end of the tester body, and a protection plate is arranged at the top end of the tester body. Two fixing blocks are mounted at the top end of the tester body, the two fixing blocks are symmetrical, sliding grooves are formed in the inner side walls of the two fixing blocks, sliding blocks are slidably connected into the sliding grooves, and grooves are formed in the outer side walls of the fixing blocks. Through sliding fit between the protection plate and the fixing block, the protection plate can conveniently cover the top of the heat dissipation plate, dust in air is effectively prevented from falling into the tester body through the heat dissipation plate, the risk of short circuit caused by the dust is remarkably reduced, and therefore the function of protecting an internal circuit of the tester body is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic property testing technology for silicon steel sheets, and specifically relates to a device for testing the magnetic properties of silicon steel sheets. Background Technology

[0002] Silicon steel sheets are thin steel plates rolled from alloy steel with added silicon. They are electrical steel sheets that use silicon as the alloying material (silicon forms a solid solution alloy with iron). The silicon content in silicon steel sheets is generally between 0.8% and 4.8%, although some sources indicate it does not exceed 4.5%. The addition of silicon increases the resistivity and maximum permeability of iron, while reducing coercivity, core loss, and magnetic aging.

[0003] When using silicon steel sheets, testing their magnetic properties is an indispensable step; however, the testing equipment faces some problems in practical applications. Specifically, to facilitate heat dissipation, the top of the testing equipment is usually designed with ventilation holes. However, the problem is that when the testing equipment is not in operation and no protective measures are taken, dust in the air can easily enter the equipment through these ventilation holes. Once dust adheres to the circuitry, it may cause a short circuit, which not only affects the accuracy of the testing equipment but may also damage it. Utility Model Content

[0004] The purpose of this invention is to provide a silicon steel sheet magnetic property testing device, which aims to solve the problem that in the existing technology, when the testing device is not in operation and no protective measures are taken, dust in the air can easily enter the device through the heat dissipation holes. Once the dust adheres to the circuit, it may cause a short circuit fault, which not only affects the accuracy of the testing device, but may also damage the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon steel sheet magnetic property testing device, comprising a testing instrument body and an integrated display screen and testing connector connected to the front end of the testing instrument body. A heat dissipation plate is integrally connected to the top of the testing instrument body, and a protective plate is provided at the top of the testing instrument body. Two fixing blocks are installed at the top of the testing instrument body, and the two fixing blocks are symmetrically opposite each other. A sliding groove is formed on the inner side wall of the two fixing blocks, and a slider is slidably connected inside the sliding groove. A groove is formed on the outer side wall of the fixing block, and a first bolt is inserted into the groove. Positioning blocks are installed at both ends of the fixing blocks, and a second bolt is threaded through the surface of the positioning block.

[0006] In a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, the slider is connected to both sides of the protective plate, and the protective plate is slidably connected to the fixed block through the slider and the sliding groove.

[0007] In a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, the first bolt passes through the groove and can be connected to the slider.

[0008] In a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, the slider is connected to the fixing block by a first bolt in a detachable compression-fixed connection.

[0009] In a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, the fixing block is detachably and fixedly connected to the tester body through a second bolt and a positioning block.

[0010] In a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, the size of the protective plate is larger than the size of the heat sink.

[0011] As a preferred embodiment of the magnetic property testing device for silicon steel sheets according to this utility model, a storage box is installed on the side wall of the tester body, and the internal dimensions of the storage box are larger than the dimensions of the test connector.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The protective plate can be easily covered on top of the heat sink by sliding between the protective plate and the fixing block, effectively preventing dust in the air from falling into the tester body through the heat sink and significantly reducing the risk of short circuit caused by dust, thereby protecting the internal circuit of the tester body.

[0014] By using the storage box, the cooled test connectors can be properly stored inside, avoiding potential damage caused by careless placement and ensuring the safety and integrity of the test connectors. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the main body structure of this utility model from a bottom view;

[0018] Figure 3 This utility model Figure 1 A magnified diagram of the connection structure at point A in the diagram;

[0019] Figure 4 This is a cross-sectional view of the connection structure between the protective plate and the fixing block of this utility model.

[0020] In the diagram: 1. Tester body; 2. Display screen; 3. Test connector; 4. Heat sink; 5. Protective plate; 6. Fixing block; 7. Slide groove; 8. Slider; 9. Groove; 10. First bolt; 11. Positioning block; 12. Second bolt; 13. Storage box. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model provides the following technical solution: a silicon steel sheet magnetic property testing device, including a tester body 1 and a display screen 2 and a test connector 3 integrated at the front end of the tester body 1. A heat sink 4 is integrally connected to the top of the tester body 1. A protective plate 5 is provided at the top of the tester body 1. Two fixing blocks 6 are installed at the top of the tester body 1. The two fixing blocks 6 are symmetrical. A sliding groove 7 is opened on the inner side wall of the two fixing blocks 6. A slider 8 is slidably connected inside the sliding groove 7. A groove 9 is opened on the outer side wall of the fixing block 6. A first bolt 10 is inserted into the groove 9. Positioning blocks 11 are installed at both ends of the fixing blocks 6. A second bolt 12 is threaded through the surface of the positioning block 11.

[0023] Preferably, the slider 8 is connected to both sides of the protective plate 5, and the protective plate 5 is slidably connected to the fixed block 6 through the slider 8 and the slide groove 7.

[0024] In practical use, the protective plate 5 is slidably connected to the fixed block 6 via the slider 8 and the slide groove 7, allowing the protective plate 5 to move flexibly. When the heat sink 4 needs to dissipate heat, the protective plate 5 can be easily opened; and when the heat sink 4 needs protection, the protective plate 5 can easily cover the top of the heat sink 4. This makes the protective plate 5 convenient to use.

[0025] Preferably, the first bolt 10 passes through the groove 9 and can be connected to the slider 8.

[0026] In practical use, after the first bolt 10 passes through the groove 9 and connects with the slider 8, the screwed-in first bolt 10 will press against the outer wall of the fixing block 6, thereby fixing the position of the first bolt 10, and then ensuring the position of the slider 8, thus ensuring the fixation of the slider 8 when it is not in use.

[0027] Preferably, the slider 8 is connected to the fixing block 6 by a first bolt 10 in a detachable compression-fixed connection.

[0028] In practical use, after rotating the first bolt 10 to release the compression fixation with the outer wall of the fixing block 6, the first bolt 10 will not separate from the slider 8. Then, as the slider 8 slides along the slide groove 7, the slider 8 will also drive the first bolt 10 to move along the groove 9. This facilitates the release of the slider 8 from the fixation.

[0029] Preferably, the fixing block 6 is detachably and fixedly connected to the tester body 1 by the second bolt 12 and the positioning block 11.

[0030] In practical use, unscrewing the second bolt 12 releases the fixing of the fixing block 6, allowing the fixing block 6 to be removed. Subsequently, dust falls from the groove 9 into the sliding groove 7 within the fixing block 6, facilitating the removal and disposal of the dust. This prevents interference with the sliding of the slider 8 and the sliding groove 7.

[0031] Preferably, the size of the protective plate 5 is larger than the size of the heat sink 4.

[0032] In practical use, the size of the protective plate 5 is larger than that of the heat sink 4, so that the protective plate 5 can completely cover the heat sink 4 and ensure that the heat sink 4 is completely covered for protection.

[0033] Preferably, a storage box 13 is installed on the side wall of the tester body 1, and the internal dimensions of the storage box 13 are larger than the dimensions of the test connector 3.

[0034] In practical use, the cooled test connector 3 can be stored in the storage box 13. The lid of the storage box 13 is opened manually, and then the test connector 3 is placed inside the storage box 13. This avoids potential damage to the test connector 3 due to improper placement and ensures the safety and integrity of the test connector 3. The body and lid of the storage box 13 are connected by snap-fit.

[0035] Working principle: First, the test connector 3 of the test instrument body 1 is connected to the silicon steel sheet. The test instrument body 1 is connected to the computer. The test program in the computer starts the test instrument body 1 to test the magnetic properties of the silicon steel sheet. The model of the test instrument body 1 is FE-2100M silicon steel parameter measuring instrument.

[0036] After the heat inside the tester body 1 has been dissipated through the heat sink 4 after use, the heat sink 4 needs to be shielded. First, manually rotate the first bolt 10 to separate it from the outer wall of the fixing block 6, while ensuring that the first bolt 10 is connected to the slider 8. Next, manually push the protective plate 5 close to the heat sink 4. Then, the protective plate 5 drives the slider 8 to slide along the slide groove 7 until the protective plate 5 completely shields the top of the heat sink 4. Next, rotate the first bolt 10 again to press the outer wall of the fixing block 6. This fixes the position of the slider 8, effectively preventing dust in the air from falling into the interior of the tester body 1 through the heat sink 4, significantly reducing the risk of short circuits caused by dust, and thus protecting the internal circuitry of the tester body 1.

[0037] Subsequently, the cooled test connector 3 is removed from the silicon steel sheet, and then the lid of the storage box 13 is opened manually. Then, the test connector 3 is placed inside the storage box 13. This avoids damage to the test connector 3 that may be caused by random placement and ensures the safety and integrity of the test connector 3.

[0038] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic property testing device for silicon steel sheets, comprising a testing instrument body (1) and a display screen (2) and a testing connector (3) integrated at the front end of the testing instrument body (1), characterized in that: The top of the tester body (1) is integrally connected to a heat sink (4), the top of the tester body (1) is provided with a protective plate (5), and two fixing blocks (6) are installed on the top of the tester body (1), with the two fixing blocks (6) being symmetrical to each other. The inner sidewalls of the two fixing blocks (6) are provided with sliding grooves (7), and the sliding grooves (7) are slidably connected to the sliding blocks (8). The outer sidewalls of the fixing blocks (6) are provided with grooves (9), and the first bolts (10) are inserted into the grooves (9). The two ends of the fixing blocks (6) are equipped with positioning blocks (11), and the surfaces of the positioning blocks (11) are threaded with second bolts (12).

2. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The slider (8) is connected to both sides of the protective plate (5), and the protective plate (5) is slidably connected to the fixed block (6) through the slider (8) and the groove (7).

3. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The first bolt (10) passes through the groove (9) and can be connected to the slider (8).

4. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The slider (8) is connected to the fixing block (6) by a first bolt (10) in a detachable compression-fixed connection.

5. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The fixing block (6) is detachably and fixedly connected to the tester body (1) by the second bolt (12) and the positioning block (11).

6. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The size of the protective plate (5) is larger than the size of the heat sink (4).

7. The silicon steel sheet magnetic property testing device according to claim 1, characterized in that: The tester body (1) is equipped with a storage box (13) on its side wall. The internal dimensions of the storage box (13) are larger than the dimensions of the test connector (3).

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