Flat cable-free jig
By designing a wire-free fixture and using separate fixture seats and needle discs, the problem that existing electrical testing fixtures cannot test large-sized circuit boards is solved, achieving efficient and fast detection results.
Patent Information
- Application Number
- CN202421612216.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-17
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Existing electrical test fixtures cannot effectively test larger circuit boards, and traditional cable fixtures take a long time to detect.
A free wire fixture is designed, including a fixture seat, wire and needle disc. By separating the fixture seat from the needle disc, the needle disc is adapted to a "one-touch PCB" detection instrument, and the size of the fixture seat and the circuit board to be tested can be freely expanded, so that large or irregular circuit boards are suitable.
It realizes that large or irregular circuit boards can be used efficiently and quickly with "one-touch PCB" detection instruments, solving the problem that existing electrical measuring fixtures cannot test large-size circuit boards, and reducing detection time.
Smart Images
Figure CN222913718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electrical measurement fixture, and particularly to a wire-free fixture for testing a circuit board. Background Art
[0002] As the core of electronic products, the quality and reliability of a printed circuit board (PCB) are crucial for the performance and lifespan of the product. To ensure the quality of the circuit board, electrical testing (open / short circuit testing) must be performed on the circuit board, mainly testing the connectivity (Continuity) and insulation (Isolation) of the substrate.
[0003] There is a current "one-touch PCB" electrical measurement fixture that can automatically and efficiently test the electrical properties of a circuit board. However, such a fixture has size limitations, and the width specification is limited to 250 millimeters, so it cannot measure larger circuit boards, such as high-order AI main boards or low-earth orbit satellite main boards with dimensions of 500 millimeters in length and width.
[0004] If a traditional plug-in wire fixture is to be used instead, the electrical measurement connectors must be connected to the detection device with wires, and the aforementioned "one-touch PCB" detection instrument cannot be used, so the detection is quite time-consuming. Summary of the Utility Model
[0005] The purpose of the utility model is to solve various problems of existing electrical measurement fixtures and propose a wire-free fixture for testing a circuit board.
[0006] To achieve the above and other purposes, the utility model proposes a wire-free fixture, which includes: a fixture base for carrying the circuit board to be tested; a wire, one end of which is connected to the fixture base; and a pin board provided with pins, and one end of the wire is connected to the plurality of pins.
[0007] Optionally, the pin board is separated from the fixture base.
[0008] Optionally, the fixture base is sized to be suitable for carrying a circuit board to be tested with a length of 650 millimeters, a width of 550 millimeters or less.
[0009] Optionally, it further includes a combination base, and the pin board is arranged on the combination base.
[0010] Optionally, a set of clamps parallel to each other are provided on opposite sides of the combination base, and the pin board is arranged between the set of clamps.
[0011] In this way, by separating the fixture base from the pin board of the fixture of the present utility model, the pin board is adapted to the "one-touch PCB" detection instrument. On the other hand, the sizes of the fixture base and the circuit board to be tested can be freely expanded and the size design can be changed, so that circuit boards with large sizes or irregular and non-standard sizes can be adapted to the "one-touch PCB" detection instrument, thereby achieving an efficient and rapid detection effect.
[0012] To further understand the features and technical content of the present utility model, please refer to the following detailed description of the utility model and the attached drawings. However, this description and the drawings are only used to illustrate the present utility model and do not impose any limitation on the scope of the rights of the present utility model. Description of the Drawings
[0013] Figure 1 It is a three-dimensional schematic diagram of the wire-free fixture according to an embodiment of the present utility model;
[0014] Figure 2 It is an assembly schematic diagram of the wire-free fixture according to an embodiment of the present utility model.
[0015] Reference Signs
[0016] 100 Wire-free Fixture
[0017] 1 Wire
[0018] 2 Fixture Base
[0019] 3 Pin Board
[0020] 31 Pin
[0021] 4 Coupling Base
[0022] 41 Clamp
[0023] P Circuit Board to be Tested
[0024] T Detection System Detailed Description of the Preferred Embodiments
[0025] To fully understand the present utility model, the following specific embodiments are provided in conjunction with the attached drawings to describe the present utility model in detail. Those skilled in the art can understand the purpose, features and effects of the present utility model from the content disclosed in this specification. It should be noted that the present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the inventive point of the present utility model. In addition, the drawings of the present utility model are only simple schematic illustrations and are not drawn according to actual sizes. The following embodiments will further describe the relevant technical content of the present utility model in detail, but the disclosed content is not used to limit the claims of the present utility model. The description is as follows:
[0026] As Figure 1 shown, the wire-free jig 100 of the embodiment of the present utility model includes: a wire 1, a jig base 2, and a pin board 3.
[0027] The jig base 2 is used to carry the circuit board P to be tested and electrically connect the circuit board P to be tested to the wire 1.
[0028] The wire 1 can be a single wire or a bundle of multiple wires. One end of the wire 1 is electrically connected to the jig base 2 and is used to electrically connect the circuit board P to be tested to the pin board 3 so that electrical signals are connected through the wire 1. The specifications and types of the wire 1 are not limited and can be adjusted accordingly according to the form of the circuit board P to be tested to the pin board 3.
[0029] The pin board 3 is provided with a plurality of pins 31 (electrical connection points), and the plurality of pins 31 are electrically connected to the other end of the wire 1. The plurality of pins 31 are used to contact the detection system T so that electrical signals are connected from the detection system T to the circuit board P to be tested. The test items or performances can be changed by changing the pins 31 or replacing the pin board 3.
[0030] In the present utility model, by separating the jig base 2 from the pin board 3, the pin board 3 is adapted to the "one-touch PCB" detection instrument as it is. On the other hand, the sizes of the jig base 2 and the circuit board P to be tested can be freely expanded and the size design can be changed, so that circuit boards with large sizes or irregular and non-standard sizes can be applicable to the "one-touch PCB" detection instrument, thereby achieving an efficient and rapid detection effect.
[0031] Further, in this embodiment, the pin board 3 is separated from the jig base 2. The electrical connection between the pin board 3 and the circuit board P to be tested relies on the wire 1 to transmit electrical signals.
[0032] Further, in this embodiment, the jig base 2 is sized to be suitable for carrying the circuit board P to be tested with a length of 650 mm, a width of 550 mm or less, and the circuit board P to be tested can be fixed by clamping or other means. However, the present utility model is not limited thereto. In other embodiments, the jig base 2 can be a structure suitable for carrying other sizes of the circuit board P to be tested, or a structure that can cooperate with the size of the circuit board P to be tested. For example, the jig base 2 can elastically cooperate with the circuit board P to be tested within a certain range of sizes.
[0033] Further, in this embodiment, the wire-free jig 100 further includes a coupling base 4, and the pin board 3 is disposed on the coupling base 4. The coupling base 4 is used to stably couple the pin board 3 to the detection system T.
[0034] Further, in this embodiment, a set of clamps 41 are provided on opposite sides of the coupling base 4, and the pin board 3 is disposed between the clamps 41. As Figure 2As shown, in this embodiment, the form of the fixture 41 is a set of opposite guide rails, and the needle plate 3 can slide in along the Figure 2 arrow direction shown in Figure 2 .
[0035] The present utility model has been disclosed above in a preferred embodiment. However, those skilled in the art should understand that the said embodiment is only used to depict the present utility model and should not be construed as limiting the scope of the present utility model. It should be noted that all equivalent changes and substitutions to the said embodiment should be set to be covered within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the content scope defined by the claims.
Claims
1. A wiring-free fixture, characterized in that: The free wiring fixture includes: A fixture seat, used to carry the circuit board to be tested; A wire, one end of which is connected to the fixture seat; and The needle plate is provided with a plurality of pins, and one end of the wire is connected to the plurality of pins.
2. The wire-free fixture according to claim 1, characterized in that: The needle disk is separated from the fixture seat.
3. The wire-free fixture according to claim 1, characterized in that: The fixture seat is suitable for carrying a circuit board to be tested with a size of 650 mm in length and 550 mm in width or less.
4. The wire-free fixture according to claim 1, characterized in that: It also includes a combining seat, and the needle disk is arranged on the combining seat.
5. The wire-free fixture according to claim 4, characterized in that: A group of clamps are arranged on two opposite sides of the combining seat, and the needle disc is arranged between the group of clamps.