Multi-channel integrated power supply acquisition unit

Abstract

The utility model discloses a multichannel integrated power supply acquisition unit, which comprises a shell and a power supply module arranged in the shell, the power supply module is connected with a plurality of input connectors in parallel, and the power supply module and the plurality of input connectors are combined to form a power supply loop. The positive electrode end, close to the power module, of the power supply loop is provided with a master control switch, the input connector is arranged on one side of the shell, the other side of the shell is provided with a plurality of output connectors, and each input connector is provided with a power supply end electrically connected with the power module and an electric signal output end electrically connected with the output connector. The input connector and the output connector are combined to form a signal loop. According to the multi-channel integrated power supply acquisition unit, power supply and acquisition are integrated, multi-channel simultaneous power supply and signal output are achieved, and a basis is provided for synchronous cylinder pressure detection of multiple cylinders of an engine.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder pressure detection, specifically to a multi-channel integrated power supply acquisition unit. Background Technology

[0002] Cylinder pressure testing accurately assesses engine performance by measuring the pressure in each cylinder during the compression stroke, revealing cylinder sealing performance, combustion efficiency, and the condition of related mechanical components. Cylinder pressure testing is a crucial method for diagnosing engine faults. By comparing the cylinder pressure values ​​of each cylinder, cylinders with abnormal pressure can be identified, indicating potential mechanical damage or other problems, such as poor valve sealing, piston ring wear, cylinder wall wear, or carbon buildup. Analyzing cylinder pressure data allows for optimization of engine design, improving combustion efficiency and power performance. Furthermore, cylinder pressure testing provides critical data that enables engineers to adjust parameters such as ignition timing and fuel injection based on actual cylinder pressure conditions, thereby improving combustion efficiency and power output while reducing fuel consumption and emissions.

[0003] Publication number CN214149672U discloses an automotive engine cylinder pressure detection sensor. This sensor includes a valve seat, a housing, a pressure sensor, and the valve seat and housing are detachably connected. A three-way valve is located inside the valve seat; one end of the three-way valve is connected to the pressure sensor; the other end of the three-way valve is connected to a connecting pipe, and the pressure sensor is connected to a pipe on the engine cylinder being tested via the connecting pipe; the third end of the three-way valve is connected to a discharge valve needle, which is threaded to a discharge valve set screw connector; a bracket is located outside the valve seat, and a USB connector is mounted on the bracket. The pressure sensor is connected to the USB connector via a wire. This automotive engine cylinder pressure detection sensor is directly connected to an AD amplifier module, but it can only detect the cylinder pressure of one cylinder at a time, resulting in the inability to simultaneously detect the cylinder pressure of multiple cylinders. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel integrated power supply and acquisition unit that integrates power supply and acquisition into one unit, enabling simultaneous power supply and signal output from multiple channels, thus providing a foundation for synchronous cylinder pressure detection of multiple cylinders in an engine.

[0005] To achieve the above objectives, this utility model provides a multi-channel integrated power supply acquisition unit, including a housing and a power module disposed within the housing. The power module is connected in parallel with multiple input connectors, and the power module and the multiple input connectors are combined to form a power supply circuit. A master control switch is disposed near the positive terminal of the power supply circuit. The input connectors are disposed on one side of the housing, and multiple output connectors are disposed on the other side of the housing. Each input connector is provided with a power supply terminal electrically connected to the power module and an electrical signal output terminal electrically connected to the output connector. The input connectors and output connectors are combined to form a signal circuit.

[0006] Preferably, the power module is a rechargeable battery, and the rechargeable battery is connected in parallel with a charging interface and a charging indicator light. The charging interface and the charging indicator light are both located on the side of the housing. The rechargeable battery, the charging interface, and the charging indicator light together form a charging circuit. A diode that allows charging current to pass through is provided near the positive terminal of the rechargeable battery in the charging circuit.

[0007] Preferably, the wire electrically connected to the negative terminal of the rechargeable battery has a negative terminal electrically connected to the outer casing, and the negative terminals of the output connector and the charging interface are both electrically connected to the negative terminal through the outer casing.

[0008] Preferably, the power supply terminal includes a first pin electrically connected to the positive terminal of the power module and a second pin electrically connected to the negative terminal of the power module.

[0009] Preferably, the electrical signal output terminal includes a third pin electrically connected to the negative terminal of the power module, and a fourth pin electrically connected to the positive terminal of the output connector.

[0010] Preferably, the third pin extends from the inner end of the second pin.

[0011] Preferably, the first pin, the second pin, the third pin, and the fourth pin are arranged in a line or in a matrix.

[0012] According to the above technical solution, this utility model provides a multi-channel integrated power supply acquisition unit, including a housing and a power module disposed within the housing. The power module is connected in parallel with multiple input connectors. The power module and the multiple input connectors are combined to form a power supply circuit. A master control switch is disposed near the positive terminal of the power module in the power supply circuit. The input connectors are disposed on one side of the housing, and multiple output connectors are disposed on the other side of the housing. Each input connector is provided with a power supply terminal electrically connected to the power module and an electrical signal output terminal electrically connected to the output connector. The input connectors and output connectors are combined to form a signal circuit.

[0013] This multi-channel integrated power supply and acquisition unit has the following advantages: 1. By connecting the input connectors in parallel with the power module, and electrically connecting the power module to the power supply terminal of each input connector, synchronous power supply to multiple input connectors is achieved; 2. The output current of the detection component plugged into the input connector is output to the output connector after passing through the electrical signal output terminal. Each input connector corresponds to one output connector, enabling the multi-channel integrated power supply and acquisition unit to simultaneously connect multiple detection components to detect the cylinder pressure in different cylinders, thereby improving the accuracy of cylinder pressure detection; 3. By integrating power supply and acquisition into one unit, it achieves simultaneous power supply and signal output across multiple channels, providing a foundation for synchronous cylinder pressure detection of multiple cylinders in an engine.

[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the multi-channel integrated power supply and acquisition unit.

[0017] Explanation of reference numerals in the attached figures

[0018] 1-Casing; 2-Rechargeable battery; 3-Master switch; 4-Charging indicator light; 5-Charging interface; 6-Output connector; 7-Input connector; 8-Power supply circuit; 9-Charging circuit; 10-Signal circuit; 11-First pin; 12-Second pin; 13-Third pin; 14-Fourth pin; 15-Diode; 16-Negative terminal. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0021] See Figure 1The multi-channel integrated power supply acquisition unit shown includes a housing 1 and a power module disposed within the housing 1. The power module is connected in parallel with multiple input connectors 7. The power module and the multiple input connectors 7 are combined to form a power supply circuit 8. A master control switch 3 is disposed near the positive terminal of the power module in the power supply circuit 8. The input connectors 7 are disposed on one side of the housing 1, and multiple output connectors 6 are disposed on the other side of the housing 1. Each input connector 7 is provided with a power supply terminal electrically connected to the power module and an electrical signal output terminal electrically connected to the output connector 6. The input connectors 7 and the output connectors 6 are combined to form a signal circuit 10.

[0022] By implementing the above technical solution, the input connector 7 is connected in parallel with the power module, and the power module is electrically connected to the power supply terminal in each input connector 7, thus achieving synchronous power supply to multiple input connectors 7. The output current of the detection component plugged into the input connector 7 is output to the output connector 6 after passing through the electrical signal output terminal. Each input connector 7 corresponds one-to-one with an output connector 6, enabling the multi-channel integrated power supply and acquisition unit to simultaneously connect multiple detection components to detect the cylinder pressure in different cylinders, thereby improving the accuracy of cylinder pressure detection. By integrating power supply and acquisition into one unit, multi-channel simultaneous power supply and signal output are achieved, providing a foundation for synchronous cylinder pressure detection of multiple cylinders in an engine.

[0023] In this embodiment, the power module is a rechargeable battery 2. The rechargeable battery 2 is connected in parallel to a charging interface 5 and a charging indicator light 4. Both the charging interface 5 and the charging indicator light 4 are located on the side of the housing 1. The rechargeable battery 2, charging interface 5, and charging indicator light 4 together form a charging circuit 9. A diode 15, allowing charging current to pass through, is located near the positive terminal of the rechargeable battery 2 in the charging circuit 9. With this implementation, when the charging interface 5 is plugged into the charger and powered on, the rechargeable battery 2 can be charged. During charging, the charging indicator light 4 illuminates. When not charging, due to the diode 15, the rechargeable battery 2 cannot supply power to the charging indicator light 4, therefore, the charging indicator light 4 does not illuminate.

[0024] In this embodiment, the wire electrically connected to the negative terminal of the rechargeable battery 2 is provided with a negative terminal 16 electrically connected to the outer casing 1. The negative terminals of the output connector 6 and the charging interface 5 are both electrically connected to the negative terminal 16 through the outer casing 1. With this arrangement, the negative terminals of the output connector 6 and the charging interface 5 are both electrically connected to the negative terminal 16 through the outer casing 1, and thus connected to the negative terminal of the rechargeable battery 2, enabling the charging circuit 9 and the signal circuit 10 to function normally. In addition, it also grounds the outer casing 1, improving safety during use.

[0025] In this embodiment, to further provide a power supply terminal, the power supply terminal includes a first pin 11 electrically connected to the positive terminal of the power module, and a second pin 12 electrically connected to the negative terminal of the power module. The first pin 11 is connected to the positive power supply terminal of the cylinder pressure detection component, and the second pin 12 is connected to the negative power supply terminal of the cylinder pressure detection component, thereby supplying power to the pressure sensor built into the cylinder pressure detection component.

[0026] In this embodiment, the electrical signal output terminal includes a third pin 13 electrically connected to the negative terminal of the power module and a fourth pin 14 electrically connected to the positive terminal of the output connector 6. The positive terminal of the pressure sensor in the cylinder pressure detection component is connected to the fourth pin 14, and the negative terminal of the pressure sensor in the cylinder pressure detection component is connected to the third pin 13. The pressure sensor converts the pressure signal in the cylinder into an electrical signal, introduces it into the signal circuit 10 through the third pin 13 and the fourth pin 14, and finally transmits it to the output connector 6.

[0027] In this embodiment, the third pin 13 extends from the inner end of the second pin 12. This arrangement allows the third pin 13 to connect to the same negative terminal line as the second pin 12.

[0028] In this embodiment, to further provide an arrangement of the first pin 11, the second pin 12, the third pin 13, and the fourth pin 14, the first pin 11, the second pin 12, the third pin 13, and the fourth pin 14 are arranged in a line or in a matrix. The interface of the input connector 7 can be rectangular or circular.

[0029] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0030] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0031] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A multi-channel integrated power supply acquisition unit, characterized in that, The multi-channel integrated power supply acquisition unit includes a housing (1) and a power module disposed inside the housing (1). The power module is connected in parallel with multiple input connectors (7). The power module and the multiple input connectors (7) are combined to form a power supply circuit (8). A master control switch (3) is disposed near the positive terminal of the power module in the power supply circuit (8). The input connectors (7) are disposed on one side of the housing (1). Multiple output connectors (6) are disposed on the other side of the housing (1). Each input connector (7) is provided with a power supply terminal electrically connected to the power module and an electrical signal output terminal electrically connected to the output connector (6). The input connectors (7) and the output connectors (6) are combined to form a signal circuit (10).

2. The multi-channel integrated power supply and acquisition unit according to claim 1, characterized in that, The power module is a rechargeable battery (2). The rechargeable battery (2) is connected in parallel with a charging interface (5) and a charging indicator light (4). The charging interface (5) and the charging indicator light (4) are both located on the side of the housing (1). The rechargeable battery (2), the charging interface (5) and the charging indicator light (4) are combined to form a charging circuit (9). A diode (15) that allows charging current to pass through is provided near the positive terminal of the rechargeable battery (2) in the charging circuit (9).

3. The multi-channel integrated power supply acquisition unit according to claim 2, characterized in that, The wire electrically connected to the negative terminal of the rechargeable battery (2) is provided with a negative terminal (16) electrically connected to the outer casing (1). The negative terminals of the output connector (6) and the charging interface (5) are both electrically connected to the negative terminal (16) through the outer casing (1).

4. The multi-channel integrated power supply acquisition unit according to claim 1, characterized in that, The power supply terminal includes a first pin (11) electrically connected to the positive terminal of the power module, and a second pin (12) electrically connected to the negative terminal of the power module.

5. The multi-channel integrated power supply acquisition unit according to claim 4, characterized in that, The electrical signal output terminal includes a third pin (13) electrically connected to the negative terminal of the power module, and a fourth pin (14) electrically connected to the positive terminal of the output connector (6).

6. The multi-channel integrated power supply acquisition unit according to claim 5, characterized in that, The third pin (13) is led out from the inner end of the second pin (12).

7. The multi-channel integrated power supply acquisition unit according to claim 4, characterized in that, The first pin (11), the second pin (12), the third pin (13) and the fourth pin (14) are arranged in a line or in a matrix.

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