Anti-misplug tool for circuit board of reaction flywheel
By designing a fixture to prevent incorrect insertion of the reaction flywheel circuit board, and utilizing the combination of interface fixtures and guide pins, the problems of incorrect interface insertion and insufficient compatibility were solved, enabling precise positioning and efficient testing of the circuit board, and improving the safety and efficiency of production testing of satellite reaction flywheels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-07
AI Technical Summary
Existing technologies for testing reaction flywheel circuit boards suffer from problems such as the risk of incorrect interface insertion, low efficiency, and insufficient compatibility, which can lead to short circuits or burnout of the circuit board, and lack rapid positioning functionality.
A reverse flywheel circuit board anti-misinsertion fixture was designed, including an interface fixture, a base cover, a circuit board guide pin, and a rear cover. Through the cooperation of the fixture socket and the guide pin, the interface position can be accurately positioned and misinsertion can be prevented, thereby improving the safety and efficiency of testing.
It effectively prevents circuit boards from short-circuiting or burning out due to operational errors, improving testing safety and efficiency. It also has high compatibility and is suitable for large-scale production testing of satellite reaction flywheels.
Smart Images
Figure CN224097128U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spacecraft attitude control technical field, in particular to a kind of anti-action flywheel circuit board prevents wrong insertion tooling. BACKGROUND
[0002] Satellite reaction wheel (Reaction Wheel) special tooling equipment, it is mainly used for the test and ground verification link of reaction wheel circuit board;The tooling covers mechanical design and assembly cooperation technology, to provide the anti-insertion process of test circuit board in the ground test stage of reaction wheel, avoid human error of test personnel, to reduce loss;It is applicable to reaction wheel manufacturing and testing field.
[0003] Reaction wheel is the core executive mechanism of satellite attitude control system, and the accurate regulation of satellite three-axis attitude is realized through the angular momentum change of high-speed rotor;Its performance directly influences the success or failure of satellite observation, communication orientation and orbit maintenance etc. tasks;Among them, the ground test of the core board (main control circuit PCB board) of flywheel is a crucial link in production.
[0004] In prior art, the ground test of reaction wheel circuit board often relies on manual operation, and the following problems exist:
[0005] 1, interface misplug risk: test interface not only shape has no direction discernment mark, also easy to misinsert, easy to cause wrong insertion due to human error, cause circuit board short circuit or burnout;
[0006] 2, low efficiency: traditional tooling lacks quick positioning function, and installation is time-consuming and has poor repeatability;
[0007] 3, insufficient compatibility: replace test cable, need to customize cover tooling, and the universality is poor.
[0008] Therefore, a special tooling with anti-insertion, high compatibility and quick positioning function is needed to improve test safety and efficiency.
[0009] The foregoing narrative is to provide general background information, and does not necessarily constitute prior art. UTILITY MODEL CONTENT
[0010] The utility model aims at providing a kind of anti-action flywheel circuit board prevents wrong insertion tooling, which improves test safety and efficiency, and provides important guarantee for the large-scale production test of satellite reaction wheel.
[0011] This utility model provides a reverse flywheel circuit board anti-misinsertion fixture, including an interface fixture, a base cover, circuit board guide pins, a circuit board, and a rear cover; a groove is provided on the upper surface of the base cover, and two fixture sockets that mate with the interface fixture are provided at the bottom of the groove, into which the interface fixture is inserted; multiple circuit board guide pins are fixedly connected to the side of the base cover away from the groove, and multiple guide holes that mate with the circuit board guide pins are provided on the circuit board, with the guide holes fitting onto the circuit board guide pins; the rear cover is connected to the side of the base cover away from the groove.
[0012] Using the above technical solution, during assembly, the interface fixture is fixed on the cable, and the shape and position of the interface fixture can be modified according to the actual circuit board used; the circuit board guide pin can better position the circuit board and ensure the accuracy of the interface position.
[0013] Furthermore, both the tooling socket and the interface tooling have a convex cross-section, the interface tooling has a guide post at the front, and a tooling cutout hole at the top.
[0014] Using the above technical solution, the guide post on the front, together with the tooling socket on the base cover, achieves the function of preventing incorrect insertion. The tooling cutout hole perfectly fits the cable interface, preventing incorrect insertion due to misalignment.
[0015] Furthermore, the groove is rectangular in shape.
[0016] Furthermore, extended baffles are provided on both the left and right sides of the interface fixture.
[0017] This utility model provides a reverse insertion prevention fixture for the reaction flywheel circuit board. During assembly, the interface fixture is fixed to the cable, and its shape and position can be modified according to the actual circuit board usage. The circuit board guide pin can better position the circuit board, ensuring the accuracy of the interface position. This utility model can effectively prevent short circuits or burnout of the core board due to operator errors. While improving testing safety and efficiency, it also takes into account economy, providing an important guarantee for the large-scale production and testing of satellite reaction flywheels. Attached Figure Description
[0018] Figure 1 A schematic diagram of the anti-misinsertion fixture for the reaction flywheel circuit board provided in this embodiment of the utility model.
[0019] Figure 2 for Figure 1 A schematic diagram of the base cover plate of the anti-misinsertion fixture for the reaction flywheel circuit board.
[0020] Figure 3 for Figure 1Another structural schematic view of the anti-misinsertion tool for the reaction flywheel circuit board.
[0021] The reference signs and components involved in the drawings are shown as follows:
[0022] 100, interface tool 110, guide column 120, tool hollow hole
[0023] 200, base cover plate 210, groove 220, tool socket
[0024] 300, circuit board guide pin 400, circuit board 410, guide hole
[0025] 500, rear cover 130, baffle DETAILED DESCRIPTION
[0026] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
[0027] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the utility model are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.
[0028] Example 1
[0029] Figure 1 The structural schematic view of the anti-misinsertion tool for the reaction flywheel circuit board provided by the utility model embodiment, Figure 2 for Figure 1 The structural schematic view of the base cover plate of the anti-misinsertion tool for the reaction flywheel circuit board, Figure 3 for Figure 1 Another structural schematic view of the anti-misinsertion tool for the reaction flywheel circuit board. Please refer to Figure 1 、 Figure 2 、 Figure 3 The anti-misinsertion tool for the reaction flywheel circuit board provided by the utility model embodiment, including interface tool 100, base cover plate 200, circuit board guide pin 300, circuit board 400 and rear cover 500, the upper surface of base cover plate 200 is provided with groove 210, the bottom of groove 210 is provided with two tool sockets 220 matched with interface tool 100, and interface tool 100 is inserted into tool socket 220, a plurality of circuit board guide pins 300 are fixedly connected to one side of base cover plate 200 away from groove 210, a plurality of guide holes 410 matched with circuit board guide pins 300 are arranged on circuit board 400, and guide holes 410 are sleeved on circuit board guide pins 300, and rear cover 500 is connected to one side of base cover plate 200 away from groove 210.
[0030] It should be noted that during assembly, the interface tool 100 is fixed on the cable, and the shape and position of the interface tool 100 can be changed according to the actual use of the circuit board 400; the circuit board guide pin 300 can better position the position of the circuit board 400, and ensure the accuracy of the interface position.
[0031] The reaction flywheel circuit board anti-misplug tool can effectively prevent the short circuit or burning of the core board caused by the operation error of the tester; while improving the test safety and efficiency, the economy is also considered, and important guarantee is provided for the large-scale production test of the satellite reaction flywheel.
[0032] Further referring to Figure 1 , Figure 2 The cross section of the tool socket 220 and the interface tool 100 is in the shape of a convex character, the front of the interface tool 100 is provided with a guide column 110, and the upper surface of the interface tool 100 is provided with a tool hollow hole 120.
[0033] It should be noted that the front guide column 110 cooperates with the tool socket 220 on the base cover plate 200 to realize the direction anti-misplug function, and the tool hollow hole 120 perfectly fits the cable interface to prevent misplug caused by mispositioning.
[0034] Further referring to Figure 1 The recess 210 is in the shape of a cuboid; the left and right sides of the upper surface of the interface tool 100 are provided with extended baffles 130.
[0035] Based on the above description, the utility model has the advantages that:
[0036] The reaction flywheel circuit board anti-misplug tool can effectively prevent the short circuit or burning of the core board caused by the operation error of the tester; while improving the test safety and efficiency, the economy is also considered, and important guarantee is provided for the large-scale production test of the satellite reaction flywheel.
[0037] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A fixture for preventing incorrect insertion of a reaction flywheel circuit board, characterized in that, Includes interface fixture (100), base cover plate (200), circuit board guide pin (300), circuit board (400) and back cover (500); A groove (210) is provided on the top of the base cover plate (200), and two tooling sockets (220) that mate with the interface tooling (100) are provided at the bottom of the groove (210). The interface tooling (100) is inserted into the tooling sockets (220). A plurality of circuit board guide pins (300) are fixedly connected to the side of the base cover plate (200) away from the groove (210). A plurality of guide holes (410) are provided on the circuit board (400) to cooperate with the circuit board guide pins (300). The guide holes (410) are sleeved on the circuit board guide pins (300). The rear cover (500) is connected to the side of the base cover plate (200) away from the groove (210).
2. The anti-misinsertion fixture for the reaction flywheel circuit board according to claim 1, characterized in that, The cross-sections of the tooling socket (220) and the interface tooling (100) are both convex. The interface tooling (100) has a guide post (110) at the front and a tooling cutout hole (120) on the top.
3. The anti-misinsertion fixture for the reaction flywheel circuit board according to claim 1, characterized in that, The groove (210) is rectangular.
4. The anti-misinsertion fixture for the reaction flywheel circuit board according to claim 2, characterized in that, Extended baffles (130) are provided on both the left and right sides of the interface fixture (100).