Frequency converter control panel testing device

Abstract

The utility model relates to the field of frequency converters, and discloses a frequency converter control panel testing device, which comprises a test board; the number of the positioning seats is two, the two positioning seats are symmetrically arranged, and the two positioning seats are arranged to be close to or far away from each other at the same time and are used for fixing the frequency converter control panel on the test bench; the number of the limiting plates is two, the two limiting seats are installed on the two positioning seats respectively, and the bottoms of the limiting plates make contact with the frequency converter control panel; and the number of the supporting plates is two, and the two supporting plates are installed on the two positioning seats correspondingly. According to the utility model, the frequency converter control panel is directly placed on the two positioning seats, the limiting plate and the supporting plate can quickly fix the frequency converter control panel, and the bottom of the limiting plate and the top of the supporting plate form vertical bidirectional elastic pressure, so that the fixing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and in particular to a frequency converter control board testing device. Background Technology

[0002] As a core component of industrial drive systems, the performance of the frequency converter control board directly affects the operational stability of the equipment. In traditional testing procedures, the control board needs to be connected to the testing equipment through a testing device to verify functions such as signal processing, drive logic, and fault response.

[0003] The inverter control board testing device mainly uses screws or pressure plates to fasten the control board to the test platform, or the tester holds the control board with one hand and aligns it with the test interface, while operating the test equipment with the other hand, relying on hand strength to maintain contact stability.

[0004] Existing testing devices rely on handheld fixed control boards, which makes operation cumbersome and time-consuming. Especially for high-frequency testing scenarios, manual fixing methods seriously affect testing efficiency. Manual holding or simple clamps cannot guarantee a tight fit between the control board and the test interface. Poor contact can easily occur due to hand tremors or loose clamps, leading to abnormal test data. Utility Model Content

[0005] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0006] A frequency converter control board testing device includes: a test bench; two positioning seats symmetrically arranged, configured to simultaneously move closer or further apart, for fixing the frequency converter control board on the test bench; two limiting plates, with two limiting plates respectively mounted on the two positioning seats, the bottom of the limiting plates contacting the frequency converter control board; and two support plates, each mounted on one of the two positioning seats, the support plates located below the positioning seats, the top of the support plates contacting the frequency converter control board.

[0007] Preferably, the positioning seat includes: a groove formed on the positioning seat, and the limiting plate installed in the groove; a first elastic member, one end of which is connected to the inner wall of the groove, and the other end of which is connected to the limiting plate.

[0008] Preferably, the positioning seat further includes: a connecting groove formed on the positioning seat, and the support plate installed in the connecting groove; a second elastic member, one end of which is connected to the support plate and the other end of which is connected to the inner wall of the connecting groove.

[0009] Preferably, one side of the limiting plate is provided with an inclined surface.

[0010] Preferably, the test bench includes: two movable slots located on the top of the test bench; and two movable blocks connected within the movable slots, with the positioning seat mounted on the movable blocks.

[0011] Preferably, the test bench further includes: a lead screw installed in the moving groove, the lead screw being threadedly connected to the moving block; and a control wheel connected to the test bench, one end of the lead screw being connected to the control wheel.

[0012] Preferably, the positioning seat has an L-shaped cross-section.

[0013] Preferably, the limiting plate and the support plate are both connected to an anti-slip layer on the side that is close to each other.

[0014] This invention provides a testing device for inverter control boards. Compared with the prior art, it has the following advantages: By placing the inverter control board directly on two positioning seats, the limiting plate and support plate can quickly fix the inverter control board, and the bottom of the limiting plate and the top of the support plate form a bidirectional elastic pressure, resulting in better fixing effect; by rotating the control wheel to synchronously adjust the distance between the two positioning seats, inverter control boards of different sizes can be fixed and tested; the spring structure of the limiting plate and support plate can automatically compensate for the thickness difference of the control board; the limiting plate and support plate are flexibly connected to the positioning seats through springs, which can adapt to control boards of different thicknesses without changing tooling. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the test platform and positioning seat structure proposed in this utility model.

[0017] Figure 3 This is a cross-sectional schematic diagram of the test platform and positioning seat proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the positioning seat, limiting plate, and support plate structure proposed in this utility model.

[0019] The attached figures are labeled as follows:

[0020] 100. Test bench; 101. Moving groove; 102. Moving block; 103. Lead screw; 104. Control wheel;

[0021] 200, Positioning seat; 201, Groove; 202, First elastic element; 203, Second elastic element;

[0022] 300. Limiting plate; 301. Inclined surface;

[0023] 400. Support plate. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0026] Reference Figures 1-4 A frequency converter control board testing device includes: a test bench 100; two positioning seats 200, symmetrically arranged, configured to simultaneously move closer or further apart, for fixing the frequency converter control board on the test bench 100; two limiting plates 300, each mounted on one of the two positioning seats 200, with the bottom of the limiting plate 300 in contact with the frequency converter control board; and two support plates 400, each mounted on one of the two positioning seats 200, located below the positioning seats 200, with the top of the support plate 400 in contact with the frequency converter control board.

[0027] In this embodiment, the inverter control board is placed directly on the two positioning seats 200, and the inverter control board presses the two limiting plates 300 to make the two limiting plates 300 move away from each other until the inverter control board crosses the limiting plates 300 and comes into contact with the support plate 400. Then the support plate 400 and the limiting plates 300 fix the inverter control board on the test bench 100.

[0028] The positioning seat 200 includes: a groove 201 formed on the positioning seat 200, and a limiting plate 300 installed in the groove 201; a first elastic member 202, one end of which is connected to the inner wall of the groove 201 and the other end of which is connected to the limiting plate 300; a connecting groove formed on the positioning seat 200, and a support plate 400 installed in the connecting groove; and a second elastic member 203, one end of which is connected to the support plate 400 and the other end of which is connected to the inner wall of the connecting groove.

[0029] The aforementioned limiting plate 300 is installed within the groove 201, and the size of the groove 201 is slightly larger than that of the limiting plate 300 to ensure that the limiting plate 300 can slide freely within the groove 201. A first elastic element 202 is connected between the inner wall of the groove 201 and the limiting plate 300. This first elastic element 202 can be a spring or a spring block. When the limiting plate 300 is subjected to external force, the spring will undergo elastic deformation, which can drive the limiting plate 300 to return to its original position when it is not compressed.

[0030] The dimensions of the connecting groove are adapted to the support plate 400, ensuring that the support plate 400 can slide freely within the connecting groove. A second elastic element 203, also a spring, is connected between the support plate 400 and the inner wall of the connecting groove; a spring block can also be used. The function of the second elastic element 203 is to provide elastic support for the support plate 400, allowing the support plate 400 to fit tightly against the bottom of the inverter control board.

[0031] The limiting plate 300 has an inclined surface 301 on one side. This inclined surface 301 facilitates the smooth placement of the inverter control board between the two positioning seats 200. When the inverter control board slides down the inclined surface 301, it will automatically push the limiting plate 300 upward, and at the same time, under the action of the first elastic member 202, the limiting plate 300 will be pressed tightly against the top of the inverter control board.

[0032] The test bench 100 includes: two movable slots 101, which are located on the top of the test bench 100; two movable blocks 102, which are connected to the movable slots 101, and the positioning seat 200 is mounted on the movable blocks 102; a lead screw 103, which is installed in the movable slots 101 and is threadedly connected to the movable blocks 102; and a control wheel 104, which is connected to the test bench 100, and one end of the lead screw 103 is connected to the control wheel 104.

[0033] The aforementioned lead screw 103 and moving block 102 are connected by a thread. When the lead screw 103 rotates, the moving block 102 can move linearly within the moving groove 101 by utilizing the transmission action of the thread. A control wheel 104 is connected to one side of the test bench 100, and one end of the lead screw 103 is connected to the control wheel 104. By rotating the control wheel 104, the operator can drive the lead screw 103 to rotate, thereby enabling the two positioning seats 200 to simultaneously move closer to or further away from the inverter control board.

[0034] The positioning seat 200 has an L-shaped cross-section. Anti-slip layers are connected to the sides of the limiting plate 300 and the support plate 400 that are close to each other. The anti-slip layers are made of rubber material with a certain degree of surface roughness, which effectively increases the friction between the anti-slip layer and the inverter control board, preventing the inverter control board from sliding or shifting during testing, thus ensuring the accuracy and stability of the test.

[0035] During operation, the operator places the inverter control board directly on the two positioning seats 200, making the control board contact the inclined surface 301 on one side of the limit plate 300. The inverter control board slides down along the inclined surface 301, automatically pushing the limit plate 300 upward. Since the limit plate 300 is installed in the groove 201 of the positioning seat 200, and the groove 201 is slightly larger than the limit plate 300, the limit plate 300 slides upward within the groove 201, simultaneously compressing the first elastic element 202 to cause elastic deformation. As the control board continues to slide down, it crosses the limit plate 300 and contacts the support plate 400. At this point, under the elastic support of the second elastic element 203, the support plate 400 is pushed upward and tightly adheres to the bottom of the inverter control board. At the same time, the first elastic element 202 drives the limit plate 300 to reset, the bottom of the limit plate 300 contacts the inverter control board, and the anti-slip layer on the limit plate 300 and the support plate 400 is in close contact with the control board, thus initially fixing the inverter control board on the test bench 100.

[0036] The operator rotates the control wheel 104 on one side of the test bench 100. The control wheel 104 drives the lead screw 103 connected to it to rotate. Since the lead screw 103 is connected to the moving block 102 installed in the moving groove 101 by a thread, when the lead screw 103 rotates, the moving block 102 moves linearly in the moving groove 101 by the transmission action of the thread. The movement of the moving block 102 drives the positioning seat 200 installed on it to move. Since the two positioning seats 200 are symmetrically arranged and the transmission design of the lead screw 103, the two positioning seats 200 will simultaneously approach the inverter control board, further clamping and fixing the control board to ensure its stability during the test. The distance between the two positioning seats 200 can also be adjusted before placing the inverter control board, so as to accommodate inverter control boards of different sizes.

[0037] After the inverter control board is stably fixed on the test bench 100, the operator can use the corresponding testing equipment to perform various performance tests on the control board, such as signal processing, drive logic, and fault response. The anti-slip layers on the limit plate 300 and support plate 400 effectively increase the friction between the control board and the control board, preventing the control board from sliding or shifting during testing, thus ensuring the accuracy and stability of the test.

[0038] After the test is completed, the operator pushes the limit plate 300, which disengages from the inverter control board, thus releasing the inverter control board from its fixation.

[0039] In summary, compared with existing technologies, it has the following beneficial effects:

[0040] By placing the inverter control board directly on the two positioning seats 200, the limiting plate 300 and the support plate 400 can quickly fix the inverter control board, and the bottom of the limiting plate 300 and the top of the support plate 400 form a bidirectional elastic pressure, resulting in a better fixing effect.

[0041] By rotating the control wheel 104 to synchronously adjust the distance between the two positioning seats 200, the control transformers of different sizes can be fixed and tested. The spring structure of the limit plate 300 and the support plate 400 can automatically compensate for the thickness difference of the control plate. The limit plate 300 and the support plate 400 are flexibly connected to the positioning seat 200 through the spring, so that control plates of different thicknesses can be adapted without changing the tooling.

[0042] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A test device for a frequency converter control board, characterized in that, include: Test stand (100); Positioning seats (200), two in number, are arranged symmetrically. The two positioning seats (200) are set to move closer or further apart at the same time, for fixing the frequency converter control board on the test bench (100). There are two limit plates (300), and the two limit seats are respectively installed on the two positioning seats (200). The bottom of the limit plate (300) is in contact with the inverter control board. There are two support plates (400), which are respectively installed on two positioning seats (200). The support plates (400) are located below the positioning seats (200), and the top of the support plates (400) is in contact with the frequency converter control board.

2. The inverter control board testing device according to claim 1, characterized in that, The positioning seat (200) includes: A groove (201) is formed on the positioning seat (200), and the limiting plate (300) is installed in the groove (201); The first elastic element (202) is connected at one end to the inner wall of the groove (201) and at the other end to the limiting plate (300).

3. The inverter control board testing device according to claim 1, characterized in that, The positioning base (200) also includes: A connecting groove is formed on the positioning seat (200), and the support plate (400) is installed in the connecting groove; The second elastic element (203) is connected at one end to the support plate (400) and at the other end to the inner wall of the connecting groove.

4. The inverter control board testing device according to claim 1, characterized in that, The limiting plate (300) has an inclined surface (301) on one side.

5. The inverter control board testing device according to claim 1, characterized in that, The test bench (100) includes: There are two movable slots (101), which are located on the top of the test bench (100); There are two movable blocks (102), which are connected in the movable slot (101) and the positioning seat (200) is installed on the movable block (102).

6. The inverter control board testing device according to claim 5, characterized in that, The test bench (100) also includes: A lead screw (103) is installed in the movable groove (101), and the lead screw (103) is connected to the movable block (102) by a thread; A control wheel (104) is connected to the test bench (100), and one end of the lead screw (103) is connected to the control wheel (104).

7. The inverter control board testing device according to claim 1, characterized in that, The positioning seat (200) has an L-shaped cross-section.

8. The inverter control board testing device according to claim 1, characterized in that, The limiting plate (300) and the support plate (400) are both connected to an anti-slip layer on the side that is close to each other.

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