CN215375725U - Circuit board short circuit detection loudness instrument - Google Patents
Circuit board short circuit detection loudness instrument Download PDFInfo
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- CN215375725U CN215375725U CN202121081462.2U CN202121081462U CN215375725U CN 215375725 U CN215375725 U CN 215375725U CN 202121081462 U CN202121081462 U CN 202121081462U CN 215375725 U CN215375725 U CN 215375725U
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Abstract
The utility model discloses a circuit board short circuit detection loudness meter, which comprises: a housing portion; a grip portion formed to be communicated with one side of the housing portion; the main control unit is fixedly arranged in the shell part, and the buzzer and the alarm lamp penetrate out of the shell part and are used for sounding and lighting signal reminding; the detection unit is detachably mounted on one side, back to the holding portion, of the shell portion, one end of the detection unit is in contact with the copper surface of a hole of the circuit board to be detected, the other end of the detection unit extends into the hole of the circuit board to be detected and is used for generating a detection signal, and the main control unit is used for receiving the detection signal and processing the detection signal into a corresponding detection result. The circuit board short circuit detection loudness meter is small in overall size, compact in structure, high in detection efficiency, and capable of quickly and accurately determining the short circuit position of a circuit board to be detected.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of circuit board detection tools, and particularly relates to a circuit board short circuit detection loudness meter.
[ background of the utility model ]
Nowadays, electronic products are developed rapidly, requirements on design, layer number and precision of circuit boards are higher and higher, requirements on production technologies of enterprises are stricter and stricter, statistics shows that failure of the circuit boards caused by short circuit occupies one fourth, and accordingly, the circuit boards can be shipped and assembled only through strict screening of a quality inspection department after a production flow, and reliability of the electronic products is guaranteed.
General quality control departments adopt a universal meter to check and examine the position of a short circuit, the efficiency is relatively low, the time and the labor are consumed, the whole production period is slowed down, and in addition, the additional labor cost is increased.
[ Utility model ] content
In order to solve the existing problems in the background technology, the utility model provides a circuit board short circuit detection loudness meter which is compact in appearance, capable of quickly carrying out short circuit detection on a circuit board, strong in use convenience and high in efficiency.
The utility model adopts the following technical scheme:
a circuit board short circuit detection loudness meter connected to a multilayer circuit board under test, the circuit board short circuit detection loudness meter comprising:
a housing portion having a hollow structure inside;
a grip portion in molded communication with one side of the housing portion;
the alarm device comprises a main control unit, a buzzer and an alarm lamp, wherein the buzzer and the alarm lamp are connected with the main control unit;
the detection unit is detachably mounted on one side, opposite to the holding portion, of the shell portion, one end of the detection unit is in contact with the copper surface of a hole of the circuit board to be detected, the other end of the detection unit extends into the hole of the circuit board to be detected and is used for generating a detection signal, and the main control unit is used for receiving the detection signal and processing the detection signal into a corresponding detection result.
Furthermore, the detection unit is provided with two positioning columns and a plurality of probes, the probes are arranged between the two positioning columns in a linear arrangement mode, the probes are in elastic contact with the copper surface of the hole of the circuit board to be detected, and the other probe extends into the hole of the test board to be detected to be in elastic contact.
Furthermore, the circuit board short circuit detection loudness meter also comprises a battery unit which is arranged in the holding part and is connected with the main control unit.
Further, the battery unit is a rechargeable battery.
Furthermore, the circuit board short circuit detection loudness meter also comprises a display unit which is arranged on the shell part, connected with the main control unit and used for displaying the corresponding detection result.
Furthermore, circuit board short circuit detection loudness appearance still includes the bluetooth unit, and the bluetooth unit links to each other with the main control unit, and external terminal carries out data sharing with bluetooth unit wireless connection.
Furthermore, the circuit board short circuit detection loudness meter also comprises a signal processing unit which is arranged between the main control unit and the display unit; the signal processing unit includes:
the signal amplification circuit is connected with the main control module and is used for amplifying the detection signal to obtain an amplified signal;
the RC filter circuit is connected with the signal amplification circuit and used for carrying out primary filtering on the amplified signal to obtain an analog signal;
the analog-to-digital conversion circuit is connected with the RC filter circuit and is used for converting the analog signal into a digital signal;
and the digital filter circuit is connected with the analog-to-digital conversion circuit and used for carrying out secondary filtering on the digital signal to obtain a filtered detection signal and outputting the filtered detection signal to the display unit.
The utility model has the following beneficial effects:
the circuit board short circuit detection loudness meter is small in overall size, compact in structure, and high in experience sense of use, and meets the requirements of ergonomics.
One of the probes on the test unit is in elastic contact with the copper surface of the plate hole of the tested circuit board, and the other probes extend into the test plate hole to be in elastic contact with the copper surface of the plate hole, so that the method is also suitable for testing the multilayer circuit board, visual prompts are given through the honey device and the alarm lamp when the short circuit is determined, the short circuit position of the tested circuit board is determined quickly and accurately, and the detection efficiency is high.
The circuit boards with different hole numbers and hole distances can be used by directly replacing the corresponding test units, or the probes with different lengths are replaced to meet the test of multilayer circuit boards, so that the universality is high.
The external terminal and the circuit board short circuit detection loudness meter are wirelessly interconnected, test data can be rapidly shared, and meanwhile the test data can be displayed through the display unit, so that visual management is enhanced.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a circuit board short circuit detection loudness meter according to the present invention;
FIG. 2 is a schematic view of another structure of FIG. 1;
FIG. 3 is a schematic diagram of the internal unit connections of the circuit board short circuit detection loudness meter;
fig. 4 is a schematic diagram of the connection of the signal processing module.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and 2, the circuit board short circuit detection loudness meter of the present invention is connected to a multilayer circuit board to be tested, and comprises: a housing portion 1, a grip portion 2, a main control unit 3, a buzzer 4 and an alarm lamp 5 connected to the main control unit 3, and a detection unit 6.
Wherein the interior of the housing part 1 is a hollow structure for preventing the main control unit 3, the buzzer 4 and the alarm lamp 5, and in the present invention, the housing part 1 is a rectangular parallelepiped structure.
The holding part 2 is formed and communicated with one side of the shell part 1, a battery unit 7 is fixedly arranged in the holding part 2, the battery unit 7 is connected with the main control unit 3 and supplies power for other power utilization units, and the battery unit 7 is preferably a rechargeable battery, so that the rechargeable battery can be charged circularly in a defect mode, is safe and reliable and can be recycled.
In addition, the main control unit 3 is fixedly arranged in the shell part 1, the buzzer 4 and the alarm lamp 5 penetrate out to be located on the outer side of the shell part 1 and used for starting audible and visual signal reminding, and the alarm lamp 5 can be an LED lamp with lower cost and is arranged into a plurality of one line. The detection unit 6 is connected with the main control unit 3, the detection unit 6 is detachably mounted on one side, opposite to the holding part 2, of the shell part 1, one end of the detection unit 6 is in contact with the copper surface of a hole of the circuit board to be detected, the other end of the detection unit extends into the hole of the circuit board to be detected and is used for generating a detection signal, and the main control unit 3 is used for receiving the detection signal and processing the detection signal into a corresponding detection result. If the detection result is a short circuit, the buzzer 4 and the alarm lamp 5 prompt at the same time, and if not, the short circuit is not generated.
In the utility model, in detail, the detection unit 6 is provided with two positioning columns 60 and a plurality of probes 61, the plurality of probes 61 are linearly arranged between the two positioning columns 60, the probes 61 are elastically contacted with the copper surface of the test circuit board hole of the circuit board to be detected, and the other probe 61 extends into the test circuit board hole of the circuit board to be detected. After a plurality of times of probe 61 investigation, the position of the short circuit is screened out quickly, and the efficiency is high.
In addition, when the circuit board to be tested with different hole numbers or different hole pitches is faced, the detection unit 6 with the corresponding size and the corresponding pitch of the probe 61 can be directly replaced, and the rest parts can be used universally; and it is also applicable to a multilayer circuit board by replacing the probe 61 with another length.
In order to realize visual management, the circuit board short circuit detection loudness meter further comprises a display unit 8 and a Bluetooth unit 9, wherein the display unit 8 is arranged on the shell part 1, connected with the main control unit 3 and used for displaying a corresponding detection result; the Bluetooth unit 9 is connected with the main control unit 3, and the external terminal is wirelessly connected with the Bluetooth unit 9 to share data.
Secondly, in order to improve the accuracy of the detection signal, a signal processing unit 10 is particularly arranged in the circuit board short circuit detection loudness meter and is arranged between the main control unit 3 and the display unit 8; referring to fig. 4, the signal processing unit 10 includes: the circuit comprises a signal amplifying circuit, an RC filter circuit, an analog-to-digital conversion circuit and a digital filter circuit; the signal amplification circuit is connected with the main control unit 3 and is used for amplifying the detection signal to obtain an amplified signal; the RC filter circuit is connected with the signal amplification circuit and is used for carrying out primary filtering on the amplified signal to obtain a filtered analog signal; the analog-to-digital conversion circuit is connected with the RC filter circuit and is used for converting the analog signal into a digital signal; the digital filter circuit is connected with the analog-to-digital conversion circuit and is used for carrying out secondary filtering on the digital signal to obtain a filtered detection signal and outputting the filtered detection signal to the display unit 8.
Due to the arrangement of the RC filter circuit and the digital filter circuit, interference can be effectively inhibited, and the stability and accuracy of a measuring result are improved. The short circuit identification capability is strong for short circuit conditions such as internal short circuit of a circuit board, Chip breakdown short circuit, welding short circuit, material error short circuit, electrochemical short circuit (flux chemical residue, electromigration) and the like; the detection precision is high, and the application range is wide. The circuit board short circuit tester has the advantages of simple test operation, high test efficiency and small damage to components.
The utility model has the advantages that:
the circuit board short circuit detection loudness meter is small in overall size, compact in structure, and high in experience sense of use, and meets the requirements of ergonomics.
One of the probes on the test unit is in elastic contact with the copper surface of the plate hole of the tested circuit board, and the other probes extend into the test plate hole to be in elastic contact with the copper surface of the plate hole, so that the method is also suitable for testing the multilayer circuit board, visual prompts are given through the honey device and the alarm lamp when the short circuit is determined, the short circuit position of the tested circuit board is determined quickly and accurately, and the detection efficiency is high.
The circuit boards with different hole numbers and hole distances can be used by directly replacing the corresponding test units, or the probes with different lengths are replaced to meet the test of multilayer circuit boards, so that the universality is high.
The external terminal and the circuit board short circuit detection loudness meter are wirelessly interconnected, test data can be rapidly shared, and meanwhile the test data can be displayed through the display unit, so that visual management is enhanced.
It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (7)
1. A circuit board short circuit detection loudness meter connected to a multilayer circuit board under test, the circuit board short circuit detection loudness meter comprising:
a housing portion having a hollow structure inside;
a grip portion in molded communication with one side of the housing portion;
the alarm device comprises a main control unit, a buzzer and an alarm lamp, wherein the buzzer and the alarm lamp are connected with the main control unit;
the detection unit is detachably mounted on one side, opposite to the holding portion, of the shell portion, one end of the detection unit is in contact with the copper surface of a hole of the circuit board to be detected, the other end of the detection unit extends into the hole of the circuit board to be detected and is used for generating a detection signal, and the main control unit is used for receiving the detection signal and processing the detection signal into a corresponding detection result.
2. The circuit board short circuit detection loudness meter according to claim 1, characterized in that said detection unit is provided with two positioning posts and a plurality of probes, said plurality of probes are arranged in a straight line between said two positioning posts, said probes are in elastic contact with the copper surface of the test circuit board hole, and another probe is in elastic contact with the test circuit board hole of the test circuit board.
3. The circuit board short circuit detection loudness meter of claim 1, further comprising a battery unit disposed within the grip portion and connected to the master control unit.
4. The circuit board short circuit detection loudness gauge of claim 3, characterized in that the battery unit is a rechargeable battery.
5. The circuit board short circuit detection loudness meter of claim 1, further comprising a display unit disposed on the housing portion and connected to the main control unit for displaying the corresponding detection results.
6. The circuit board short circuit detection loudness meter of claim 1, characterized in that the circuit board short circuit detection loudness meter further comprises a bluetooth unit, the bluetooth unit is connected with the main control unit, and the external terminal is wirelessly connected with the bluetooth unit for data sharing.
7. The circuit board short circuit detection loudness meter of claim 5, characterized in that the circuit board short circuit detection loudness meter further comprises a signal processing unit arranged between the main control unit and the display unit; the signal processing unit includes:
the signal amplification circuit is connected with the main control unit and is used for amplifying the detection signal to obtain an amplified signal;
the RC filter circuit is connected with the signal amplification circuit and used for carrying out primary filtering on the amplified signal to obtain an analog signal;
the analog-to-digital conversion circuit is connected with the RC filter circuit and is used for converting the analog signal into a digital signal;
and the digital filter circuit is connected with the analog-to-digital conversion circuit and used for carrying out secondary filtering on the digital signal to obtain a filtered detection signal and outputting the filtered detection signal to the display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121081462.2U CN215375725U (en) | 2021-05-19 | 2021-05-19 | Circuit board short circuit detection loudness instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121081462.2U CN215375725U (en) | 2021-05-19 | 2021-05-19 | Circuit board short circuit detection loudness instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215375725U true CN215375725U (en) | 2021-12-31 |
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ID=79630713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121081462.2U Active CN215375725U (en) | 2021-05-19 | 2021-05-19 | Circuit board short circuit detection loudness instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215375725U (en) |
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2021
- 2021-05-19 CN CN202121081462.2U patent/CN215375725U/en active Active
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