Test board card

Abstract

The utility model discloses a test board card which can improve test efficiency. The test board card comprises a test board body, the test board body is provided with at least one power supply wiring hole, at least one grounding wiring hole and at least two groups of resistor wiring holes, and each group of resistor wiring holes comprises two resistor wiring holes; and the number of the resistors is at least two, and the two ends of each resistor are respectively and electrically connected between one group of resistor wiring holes.

Description

Technical Field

[0001] The utility model relates to the technical field of ECU single board testing, in particular to a test board card used for ECU single board testing. Background Art

[0002] There may be various faults in the car, most of which are diagnosed by the electronic control unit (ECU) one by one in the car, and the instrument alarms and reminds the driver. When the ECU performs single-board chip testing and fault diagnosis testing, a test environment needs to be specially matched for each test. Different loads often need to be replaced during this test, and the loads need to be manually replaced and re-welded each time.

[0003] The existing method has the following problems:

[0004] Different loads need to be frequently replaced, and each time the load is replaced, the required load needs to be found again, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a test board card, which can improve the test efficiency.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides a test board, comprising:

[0008] A test board body, wherein the test board body is provided with at least one power wiring hole, at least one ground wiring hole and at least two groups of resistance wiring holes, each group of resistance wiring holes includes two resistance wiring holes;

[0009] Resistors, there are at least two resistors, and two ends of each resistor are electrically connected between a group of resistor wiring holes.

[0010] The utility model has the following advantages:

[0011] This solution integrates power wiring holes, ground wiring holes and multiple resistors on the test board body. During testing, a suitable load resistor can be directly selected. There is no need to find a suitable load each time the load is changed, thereby improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 The figure is a schematic diagram of the structure of the test board of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] 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 represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0017] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The utility model provides a test board, such as Figure 1 As shown, the test board body 1 and the resistor 2 are included. The test board body 1 is provided with at least one power wiring hole 11, at least one ground wiring hole 12 and at least two groups of resistor wiring holes 13, each group of resistor wiring holes 13 includes two resistor wiring holes 13; there are at least two resistors 2, and both ends of each resistor are electrically connected between a group of resistor wiring holes 13.

[0021] In this solution, at least two resistors of different resistance values ​​are integrated on the test board body 1. Each time a test is performed, a load resistor of a corresponding resistance value is directly selected or two resistors are connected in series and / or in parallel to form a load of a corresponding resistance value for testing. The resistor wiring hole 13, the power wiring hole 11, and the ground wiring hole 12 are arranged to facilitate wiring and welding according to test requirements.

[0022] In order to improve the heat dissipation capability of the test board body 1 , at least two positioning holes 14 and columns fixed on the positioning holes 14 are provided on the test board body 1 .

[0023] There are many ways to set the columns, with the premise of ensuring the stability of the test board body 1. The test board body 1 can be in various shapes, such as round, square, diamond or other irregular shapes.

[0024] Taking the test board body 1 as a square as an example, the number of positioning holes 14 is preferably four and they are respectively arranged at the four corners of the test board body 1 .

[0025] In order to distinguish the power connection hole 11 and the ground connection hole 12, the test board body 1 is provided with a mark 15 for distinguishing the power connection hole 11 and the ground connection hole 12. Figure 1 As shown in , the power wiring hole 11 can be marked with UBAT, and the ground wiring hole 12 can be marked with GND.

[0026] The setting of the resistor 2 on the test board body 1 can be customized according to the test requirements. For example, if loads of 10Ω, 20Ω, 500Ω, 1MΩ, 1.5MΩ, and 1.6MΩ are required during the test, 6 groups of resistor wiring holes 13 are directly set on the test board body 1, and resistors of 10Ω, 20Ω, 500Ω, 1MΩ, 1.5MΩ, and 1.6MΩ are respectively connected to the 6 groups of resistor wiring holes 13. During the test, the resistor wiring hole 13 corresponding to the resistor of the corresponding resistance value is selected each time for welding and use.

[0027] The resistor 2 on the test board body 1 can also be non-customized. When it is non-customized, in order to improve its scope of use, the resistor wiring holes 13 are provided with at least two rows and each row includes at least two groups of resistor wiring holes 13. At this time, in order to further improve its scope of use, the resistor 2 includes plug-in resistors, sheet resistors, such as color ring resistors, and chip resistors. The color ring resistor has a large resistance range, and the chip resistor has a relatively small resistance range to meet various test requirements.

[0028] Taking color ring resistors and SMD resistors as examples, color ring resistors have at least one row and at least 2 resistors in each row; SMD resistors have at least one row and at least 2 resistors in each row. Figure 1 As shown in the figure, the color ring resistors are arranged in 3 rows and placed at the top; the chip resistors are arranged in 5 rows and placed at the bottom. The chip resistors can be selected from 0402, 0603, 0805, 1206, 2512, etc.

[0029] When using the test board with this structure, not only a single resistor with corresponding resistance value can be selected for welding in one test, but also two resistors can be connected in series and parallel to be equivalent to the load required for the test.

[0030] In order to improve the convenience of wiring during testing, the power wiring hole 11 and the ground wiring hole 12 are arranged around the resistor wiring hole 13. The power wiring hole 11 and the ground wiring hole 12 are arranged around, and the nearest power wiring hole 11 and the ground wiring hole 12 can be directly selected according to the position of the resistor wiring hole 13 used, which is convenient for testing operation. More preferably, the power wiring hole 11 and the ground wiring hole 12 are arranged on each side of the resistor wiring hole 13.

[0031] In order to facilitate the test wiring, pins can be welded on the power wiring hole 11 and the ground wiring hole 12.

[0032] The resistor and the resistor wiring hole 13 can be electrically connected in a variety of ways. In order to enhance the aesthetics of the test board and avoid affecting the test welding, the resistor and the resistor wiring hole 13 can be connected by a soldering pad or a copper wire.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test board, characterized in that: include: A test board body (1), the test board body (1) being provided with at least one power wiring hole (11), at least one ground wiring hole (12) and at least two groups of resistance wiring holes (13), each group of resistance wiring holes (13) comprising two resistance wiring holes (13); Resistors (2), there are at least two resistors (2), and two ends of each resistor are electrically connected between a group of resistor wiring holes (13).

2. A test board according to claim 1, characterized in that: The test board body (1) is provided with at least two positioning holes (14) and columns fixed on the positioning holes (14).

3. A test board according to claim 1, characterized in that: The test board body (1) is provided with a mark (15) for distinguishing the power wiring hole (11) and the ground wiring hole (12).

4. A test board according to claim 1, characterized in that: The resistor wiring holes (13) have at least two rows, and each row includes at least two groups of resistor wiring holes (13).

5. A test board according to claim 4, characterized in that: The power wiring hole (11) and the ground wiring hole (12) are arranged around the resistor wiring hole (13).

6. A test board according to claim 4, characterized in that: A power connection hole (11) and a ground connection hole (12) are provided on each side of the resistor connection hole (13).

7. A test board according to claim 1, characterized in that: Pins are welded on the power wiring hole (11) and the ground wiring hole (12).

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