Power protection board testing device

Abstract

The utility model relates to the technical field of electric tools, and discloses a power protection board testing device, which comprises a box body provided with a first jacking mechanism; the lower pin test module comprises a pin plate and test pins, and the test pins are arranged on the pin plate, correspond to the test points of the to-be-tested power supply protection plate in position and are used for being in contact with the test points to be electrically connected with the test points; the rotating module comprises a fixed seat and a rotating shaft eccentrically arranged on the fixed seat, the lower needle testing module is slidably connected with the fixed seat, the fixed seat is rotatably connected with the rotating shaft, and the rotating shaft is fixed with the box body; wherein the driving end of the first jacking mechanism abuts against one side of the long edge of the fixed seat and is used for driving the rotating module to rotate around the rotating shaft, a second jacking mechanism is arranged on one side, away from the needle plate, of the fixed seat, and the driving end of the second jacking mechanism is connected with the needle plate and is used for driving the lower needle test module to lift or press down. According to the utility model, the function of rotating while testing in the testing process of the power supply protection board can be realized.

Description

A power protection board testing device Technical Field

[0001] This utility model belongs to the field of power tool technology, specifically relating to a power protection board testing device. Background Technology

[0002] With the continuous development and innovation of power tool products, some products have added protection functions that automatically disconnect the power supply under certain circumstances. Therefore, it is necessary to conduct various tests on the power protection board of the power tool.

[0003] In the traditional power tool manufacturing process, the industry commonly uses a testing method that involves plugging wired terminals into corresponding terminals on the power protection board, and then rotating the power protection board with a cylinder or motor to determine the working status of the ball switch. This testing method has many drawbacks. The wired terminal plugging operation is cumbersome, the testing efficiency is low, and it seriously restricts the increase in production capacity. Moreover, after repeated plugging and unplugging, the wired terminals are prone to loosening or even damage, which not only leads to inaccurate test results and increases the test defect rate, but also causes terminal wear, resulting in increased manufacturing costs. In addition, some power tools need to integrate ball switches into their internal power protection boards. The conventional testing method involves plugging the terminals into the power protection board to fix the board in place during testing, which cannot meet the requirement that the power protection board needs to trigger the ball switch during the testing process. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides a power protection board testing device that enables stable testing of the power protection board while also meeting the requirements for rotational and tilt testing.

[0005] The technical effects to be achieved by this utility model are realized through the following aspects:

[0006] This utility model provides a power protection board testing device, comprising:

[0007] The housing is equipped with a first lifting mechanism;

[0008] The pin-down testing module includes a pin plate and test pins. The test pins are disposed on the pin plate and correspond to the test point positions of the power supply protection board under test, for contacting and electrically connecting with the test points; and

[0009] A rotating module includes a fixed base and an eccentrically mounted rotating shaft on the fixed base. The fixed base is rotatably connected to the rotating shaft, and the rotating shaft is fixed to the housing.

[0010] The first lifting mechanism has its driving end abutting against one side of the long side of the fixed base, which is used to drive the rotating module to rotate around the rotating shaft. The fixed base has a second lifting mechanism on the side away from the needle plate. The driving end of the second lifting mechanism is connected to the needle plate, which is used to drive the needle testing module to lift or press down.

[0011] In some implementations, the mounting base has several detection slots on the side near the needle plate for placing the power protection board.

[0012] In some implementations, the fixing base is provided with a plurality of through-type linear bearings, and a guide rod is slidably connected to the linear bearing, the guide rod being fixed to the needle plate.

[0013] In some implementations, the fixed base is provided with a connecting block, the connecting block is provided with a rolling groove sleeved on the rotating shaft, and the fixed base is rotatably connected to the rotating shaft through the connecting block.

[0014] In some implementations, the fixing base is provided with several limiting posts to limit the downward pressure of the needle plate.

[0015] In some implementations, the first lifting mechanism includes a first cylinder and a second cylinder, wherein the piston rod of the second cylinder lifts to a greater height than the piston rod of the first cylinder.

[0016] In some implementations, the first cylinder piston rod is raised to the same height as the rotating shaft.

[0017] In some implementations, the retracted height of the second cylinder piston rod is greater than that of the first cylinder piston rod.

[0018] In some implementations, both the piston rod ends of the first cylinder and the second cylinder are provided with cylinder plug heads.

[0019] In some implementations, the fixed base is provided with two reinforcing ribs, and the second lifting mechanism is fixed between the two reinforcing ribs.

[0020] In summary, this utility model has at least the following advantages:

[0021] This utility model provides a power protection board testing device that enables the power protection board to rotate at a certain angle during testing through a rotating module linked to a pin-down testing module. The rotating module's mounting base holds the power protection board to be tested, and the rotating shaft on the mounting base is eccentrically positioned. A first lifting mechanism acts on the long side of the mounting base. The eccentrically positioned rotating shaft of the rotating module is driven by the first lifting mechanism, causing the mounting base used for power protection board testing to rotate and tilt. Due to the eccentrically positioned rotating shaft, the mounting base can change its tilting and rotation direction under the influence of gravity. The pin-down testing module is connected to the mounting base on the rotating module through a second lifting mechanism. The second lifting mechanism drives the pin-down testing module to complete the pressing test and lifting / removing actions. The pin-down testing module avoids cumbersome insertion operations and can tilt and rotate with the rotating module, thus meeting the requirement for the power protection board to rotate at a certain angle during testing, thereby improving testing efficiency. Attached Figure Description

[0022] Figure 1 is an exploded structural diagram of the power protection board testing device of Embodiment 1 of this utility model.

[0023] Figure 2 is an exploded structural diagram of the fixing seat and needle plate of Embodiment 2 of this utility model.

[0024] Figure 3 is a front view schematic diagram of the needle testing module and the rotation module of Embodiment 3 of this utility model.

[0025] Marked in the image:

[0026] 1. Housing; 11. First lifting mechanism; 111. First cylinder; 112. Second cylinder; 113. Cylinder plug head; 2. Needle test module; 21. Needle plate; 22. Test needle; 23. Guide rod; 3. Rotation module; 31. Fixed seat; 311. Detection groove; 312. Limiting post; 313. Reinforcing rib; 32. Rotating shaft; 33. Second lifting mechanism; 34. Linear bearing; 35. Connecting block; 351. Rolling groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please refer to Figure 1, which is an exploded structural diagram of a power protection board testing device according to this utility model.

[0031] As shown in Figure 1, the power protection board testing device of this embodiment includes: a housing 1, which is provided with a first lifting mechanism 11; a needle test module 2, which includes a needle plate 21 and a test needle 22, the test needle 22 being disposed on the needle plate 21 and corresponding to the test point position of the power protection board under test, for contacting the test point for electrical connection; and a rotating module 3, which includes a fixed base 31 and an eccentrically disposed rotating shaft 32 on the fixed base 31, the needle test module 2 being slidably connected to the fixed base 31, the fixed base 31 being rotatably connected to the rotating shaft 32, and the rotating shaft 32 being fixed to the housing 1; wherein, the driving end of the first lifting mechanism 11 abuts against one side of the long side of the fixed base 31, for driving the rotating module 3 to rotate around the rotating shaft 32, and a second lifting mechanism 33 is provided on the side of the fixed base 31 away from the needle plate 21, the driving end of the second lifting mechanism 33 being connected to the needle plate 21, for driving the needle test module 2 to lift or press down.

[0032] Specifically, the power protection board testing device's modules are housed within a housing 1. Housing 1 consists of a base plate and four side plates, with a top opening for easy installation. Housing 1 provides overall support and protection. The power protection board testing device also includes a pin test module 2 and a rotation module 3. The rotating module 3's mounting base 31 is rotatably connected to housing 1 via a rotating shaft 32. The rotating shaft 32 is eccentrically positioned on the mounting base 31, resulting in unequal portions of the mounting base 31 on both sides. The center of gravity of the mounting base 31 is located on one of its longer sides. Housing 1 contains a first lifting mechanism 11, whose driving end acts on the longer side of the mounting base 31. When the first lifting mechanism 11 lifts, it rotates in conjunction with the rotating shaft 32, tilting the mounting base 31. When the first lifting mechanism 11 retracts, the mounting base 31 tilts back due to gravity. The mounting base 31 is used to fix the power protection board under test, and the pin test module 2 is slidably connected to the mounting base 31. The mounting base 31 is provided with a second lifting mechanism 33 on the other side, which can drive the pin plate 21 of the pin test module 2 to lift and press down on the power protection board under test. The pin plate 21 is provided with mounting holes corresponding to the test points of the power module under test for mounting test pins 22. By driving the pin test module 2 to press down, the test pins 22 on the pin plate 21 can contact the test points of the power module under test and achieve electrical connection and achieve the purpose of test connection.

[0033] It is worth noting that the rotating shaft 32 can be a damping rotating shaft 32, which plays a buffering role when the fixed seat 31 is lifted and lowered, so as to ensure the stability of the rotating module 3 during the rotation process.

[0034] During the test, the fixed base 31 is in a horizontal position, and the needle test module 2 is in a raised state. The power protection board under test is placed on the fixed base 31 and fixed by the fixed base 31. The needle test module 2 is driven by the second lifting mechanism 33 to complete the pressing action, so that the test needle 22 on the needle plate 21 is electrically connected to the power protection board under test. Then, the first lifting mechanism 11 drives the fixed base 31 and cooperates with the rotating shaft 32 to adjust the tilt state during the test, so that the power protection board can rotate and tilt at a certain angle for testing, thereby triggering the ball switch integrated in the power protection board to provide safety protection for the power protection board, so as to verify the working status of the power protection board under different tilt angles.

[0035] In another embodiment, the rotation method of the above-mentioned rotating module 3 is only an example. In actual applications, other implementation methods can also be used. The first lifting mechanism 11 can be a rotary motor or a rotary cylinder, which can directly drive or transmit the rotating shaft 32 to rotate. Alternatively, a preset program can be used to precisely control the tilt angle, thereby achieving the tilting rotation of the fixed seat 31. This application does not limit this.

[0036] In this embodiment, the power protection board testing device, through the pin-down testing module 2 and the fixing base 31 for limiting the power protection board under test, in conjunction with the second lifting mechanism 33, achieves stable contact, avoiding the easy loosening and damage or poor insertion of wired terminals, effectively improving testing efficiency. Furthermore, the pin-down testing module 2 uses replaceable test pins 22 for insertion, making maintenance and replacement operations more convenient. The test pins 22 replace terminals for insertion into the power protection board, ensuring testing accuracy and stability. In addition, the fixing base 31, through the eccentrically set rotating shaft 32 and the first lifting mechanism 11, enables multi-angle rotation and tilting of the power protection board under test, simulating the tilt state of the power protection board in actual use. Batch testing at uniform tilt angles improves testing efficiency while ensuring the accuracy of power protection board performance testing, and also meets the requirement of rotating at a certain angle during testing.

[0037] Example 2:

[0038] This embodiment is a further structural optimization of the mounting base 31 of the power protection board testing device of this utility model, please refer to Figure 2.

[0039] As shown in Figure 2, in some embodiments, the mounting base 31 has several detection slots 311 on the side near the needle plate 21 for placing the power protection board.

[0040] Specifically, the mounting base 31 is provided with multiple test slots 311 for placing power protection boards, so as to perform parallel testing on multiple power protection boards simultaneously, thereby improving testing efficiency. The shape of each test slot 311 is adapted to the outer contour of the power protection board under test, and a notch or groove for picking up the component is reserved at the edge of the test slot 311. The test slot 311 is also provided with a positioning boss for positioning and engaging with the power protection board under test. Preferably, there are four test slots 311 arranged sequentially at intervals.

[0041] To ensure the stability of the pressure test of the needle test module 2, in some embodiments, the fixed base 31 is provided with a number of through-type linear bearings 34, and a guide rod 23 is slidably connected to the linear bearing 34, and the guide rod 23 is fixed to the needle plate 21.

[0042] Specifically, the fixed base 31 and the needle plate 21 are slidably connected through the cooperation of linear bearings 34 and guide rods 23. Several linear bearings 34 are installed on the fixed base 31 near the edge and are symmetrically distributed. The needle plate 21 is fixed with guide rods 23 corresponding to the linear bearings 34. The length of the guide rods 23 is greater than the lifting length of the second lifting mechanism 33 to prevent the guide rods 23 from detaching from the linear bearings 34 during movement and affecting the overall downward stability. This downward pressure test module 2, by setting the guide rods 23 to be slidably connected to the linear bearings 34 of the fixed base 31, ensures that the test needles 22 on the needle plate 21 always maintain the same position relative to the power protection board during the test, and the power protection board will not be subjected to additional force, thereby ensuring the stability of the power protection board during the tilting test.

[0043] In some embodiments, the fixed base 31 is provided with a connecting block 35, and the connecting block 35 is provided with a rolling groove 351 sleeved on the rotating shaft 32. The fixed base 31 is rotatably connected to the rotating shaft 32 through the connecting block 35.

[0044] Specifically, the connecting block 35 is provided with a rolling groove 351 for placing the rotating shaft 32. The connecting block 35 fixes the rotating shaft 32 to the bottom of the fixed base 31. The connecting block 35 plays a supporting role and can withstand long-term repeated rotation tests. Moreover, this separately connected moving part is easy to maintain and replace.

[0045] To prevent excessive downward pressure of the needle test module 2, in some embodiments, the mounting base 31 is provided with several limiting posts 312 to limit the downward pressure of the needle plate 21. The limiting posts 312 are located on the side close to the power supply protection board under test, and the limiting posts 312 abut against the needle plate 21.

[0046] In some embodiments, the fixed base 31 is provided with two reinforcing ribs 313, and the second lifting mechanism 33 is fixed between the two reinforcing ribs 313.

[0047] Specifically, the components on the fixed base 31 need to be rotated. Therefore, two reinforcing ribs 313 are set on the bottom side of the fixed base 31. The second lifting mechanism 33 is installed between the two reinforcing ribs 313. When the first lifting mechanism 11 drives the fixed base 31 to rotate around the rotating shaft 32, it improves the stability of the lower needle test module 2 during the pressing process. It can also effectively reduce the shaking and vibration of the fixed base 31 to the second lifting mechanism 33, and further improve the performance and service life of the power protection board test device.

[0048] In this embodiment, the mounting base 31 is provided with multiple detection slots 311 for placing the power protection board, facilitating multiple sets of tests at once and improving testing efficiency. A limit post 312 is provided on the side of the mounting base 31 near the power protection board to prevent damage to the power protection board due to excessive downward pressure. The design of the mounting base 31 with a linear rotating shaft 32 and guide rod 23 allows the needle-feeding test module 2 to move smoothly relative to the mounting base 31, effectively preventing incorrect insertion of the test needles 22 of the needle plate 21. In addition, the mounting base 31 is provided with two reinforcing ribs 313, and a second lifting mechanism 33 for driving the movement of the needle-feeding test module 2 is installed between the two reinforcing ribs 313, effectively reducing the shaking and vibration of the second lifting mechanism 33 caused by the mounting base 31 during rotation, further improving the stability of the needle-feeding test module 2. A detachable connecting block 35 is designed between the mounting base 31 and the rotating shaft 32. This connecting block 35 has a rolling groove 351 for accommodating the rotating shaft 32, allowing the mounting base 31 to adapt to long-term production and making replacement easier during maintenance.

[0049] Example 3:

[0050] This embodiment is a further structural optimization of the power protection board testing device of this utility model, please refer to Figure 3.

[0051] As shown in Figure 3, in some embodiments, the first lifting mechanism 11 includes a first cylinder 111 and a second cylinder 112, wherein the piston rod of the second cylinder 112 has a lifting height greater than that of the piston rod of the first cylinder 111.

[0052] Specifically, the first lifting mechanism 11 is divided into two driving components: a first cylinder 111 and a second cylinder 112. The lifting height of the piston rod of the second cylinder 112 is greater than that of the piston rod of the first cylinder 111, with a height difference between them. This design allows the fixed base 31 to achieve multi-angle adjustment under cylinder drive. This cylinder-driven method is safer, avoiding electromagnetic interference to the power protection board during testing, and using cylinders can effectively reduce the overall design cost of the equipment.

[0053] In some embodiments, the piston rod of the first cylinder 111 is raised to the same height as the rotating shaft 32.

[0054] Specifically, when the fixed base 31 is in a horizontal state, the second cylinder 112 is in a retracted state, while the first cylinder 111 is in a lifting state. The pushing height of the first cylinder 111 is consistent with the height of the rotating shaft 32 on the other side of the fixed base 31, thereby achieving a horizontal state for the fixed base 31.

[0055] In some embodiments, the retraction height of the piston rod of the second cylinder 112 is greater than the retraction height of the piston rod of the first cylinder 111.

[0056] Specifically, the first cylinder 111 and the second cylinder 112 are the same type of cylinder to avoid using different parts and increasing the difficulty of later maintenance. The piston rod retraction height of the second cylinder 112 is greater than that of the piston rod retraction height of the first cylinder 111, so that the second cylinder 112 can achieve the second tilt angle of the rotating module 3.

[0057] Understandably, the first cylinder 111 is used to adjust the power protection board on the fixed seat 31 to be in a horizontal position, that is, the fixed seat 31 of the rotating module 3 is in the initial position of 0°, while the second cylinder 112 is used to adjust two different tilt angles. One is the tilt angle of the fixed seat 31 achieved by the second cylinder 112 lifting in conjunction with the rotating shaft 32, and the other is the tilt angle of the fixed seat 31 achieved by the second cylinder 112 retracting in conjunction with the rotating shaft 32.

[0058] Preferably, the second cylinder 112 adjusts the relative setting position so that the fixed seat 31 can achieve two rotation angles, namely 11° and -16.8°, so that the rotating module 3 can perform three angle working modes, namely 11°, 0° and -16.8°.

[0059] In some embodiments, the piston rod ends of both the first cylinder 111 and the second cylinder 112 are provided with cylinder plug steel heads 113.

[0060] Specifically, by setting a cylinder plug steel head 113 at the piston end of the cylinder, the cylinder plug steel head 113 is used to abut against the fixed seat 31. The cylinder plug steel head 113 can enhance the wear resistance of the drive end, so as to ensure the long-term stable operation of the cylinder and reduce maintenance and replacement costs.

[0061] In this embodiment, the first lifting mechanism 11 is specifically a first cylinder 111 and a second cylinder 112. The cylinders are used to lift the fixed seat 31 to achieve various tilt angles in order to meet the relevant tilt test standards of the power protection board. A cylinder plug steel head 113 is provided at the piston end of both the first cylinder 111 and the second cylinder 112. The cylinder plug steel head 113 is a separate standard component, which not only achieves wear resistance and enhances operational stability, but also makes cylinder maintenance or repair convenient, reducing maintenance costs and time.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0064] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0065] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A power protection board testing device, characterized in that, include: The housing is equipped with a first lifting mechanism; The pin test module includes a pin plate and test pins. The test pins are disposed on the pin plate and correspond to the test point positions of the power protection board under test, and are used to make contact with the test points for electrical connection. The system includes a rotating module, comprising a fixed base and an eccentrically mounted rotating shaft on the fixed base. The needle testing module is slidably connected to the fixed base, and the fixed base is rotatably connected to the rotating shaft. The rotating shaft is fixed to the housing. The driving end of the first lifting mechanism abuts against one side of the long side of the fixed base to drive the rotating module to rotate around the rotating shaft. A second lifting mechanism is provided on the side of the fixed base away from the needle plate. The driving end of the second lifting mechanism is connected to the needle plate to drive the needle testing module to lift or press down.

2. The power protection board testing device according to claim 1, characterized in that, The mounting base has several detection slots on the side near the needle plate for placing the power protection board.

3. The power protection board testing device according to claim 2, characterized in that, The fixed base is provided with several through-type linear bearings, and guide rods are slidably connected to the linear bearings. The guide rods are fixed to the needle plate.

4. The power protection board testing device according to claim 3, characterized in that, The fixed base is provided with a connecting block, and the connecting block is provided with a rolling groove sleeved on the rotating shaft. The fixed base is rotatably connected to the rotating shaft through the connecting block.

5. The power protection board testing device according to claim 4, characterized in that, The fixing base is provided with several limiting posts to limit the downward pressure of the needle plate.

6. The power protection board testing device according to claim 1, characterized in that, The first lifting mechanism includes a first cylinder and a second cylinder, wherein the piston rod of the second cylinder lifts to a greater height than the piston rod of the first cylinder.

7. The power protection board testing device according to claim 6, characterized in that, The piston rod of the first cylinder is raised to the same height as the rotating shaft.

8. The power protection board testing device according to claim 7, characterized in that, The retracted height of the second cylinder piston rod is greater than that of the first cylinder piston rod.

9. The power protection board testing device according to any one of claims 6-8, characterized in that, Both the first cylinder and the second cylinder have cylinder plugs at the piston rod ends.

10. The power protection board testing device according to claim 1, characterized in that, The fixed base is provided with two reinforcing ribs, and the second lifting mechanism is fixed between the two reinforcing ribs.

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