Modular digital pressure gauge

Abstract

This application relates to a modular digital pressure gauge, belonging to the technical field of pressure gauges. It includes a pressure acquisition module, a display and control module, and a connector. The connector connects the pressure acquisition module and the display and control module. The pressure acquisition module includes: a pressure sensor; a housing, which is fixedly mounted on the pressure sensor and detachably connected to the connector; and a circuit module, electrically connected to the pressure sensor and housed within the housing. This application facilitates the maintenance of digital pressure gauges and improves their production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of pressure gauges, and in particular to a modular digital pressure gauge. Background Technology

[0002] A digital pressure gauge typically consists of two modules: a pressure acquisition module and a display and control module. The pressure acquisition module is mainly used for pressure signal sampling, temperature signal sampling, and pressure calculation, while the display and control module is mainly used for human-machine interaction and pressure value display.

[0003] In current digital pressure gauges, the pressure acquisition module and display control module are structurally and hardware-wise integrated. After the calculation coefficients are calibrated and written into the gauge's storage unit during production, the pressure acquisition module and display control module are fixed in their correspondence. This is detrimental to improving production efficiency and facilitating later maintenance. Furthermore, when different measurement ranges are required, only pressure gauges with different ranges can be replaced; the pressure acquisition module cannot be replaced to achieve the same result. Utility Model Content

[0004] To facilitate the maintenance of digital pressure gauges and improve their production efficiency, this application provides a modular digital pressure gauge.

[0005] This application provides a modular digital pressure gauge, which adopts the following technical solution:

[0006] A modular digital pressure gauge includes a pressure acquisition module, a display and control module, and connectors;

[0007] The connector is used to connect the pressure acquisition module and the display control module;

[0008] The pressure acquisition module includes:

[0009] Pressure sensor;

[0010] The housing is fixedly mounted on the pressure sensor, and the housing is detachably connected to the connector;

[0011] A circuit module, which is electrically connected to the pressure sensor, is disposed within the housing.

[0012] Optionally, the circuit module includes:

[0013] A first circuit board is fixedly mounted on the pins of the pressure sensor;

[0014] A temperature sensor is fixedly mounted on the first circuit board.

[0015] Optionally, a second circuit board is also fixedly mounted on the pins of the pressure sensor, and a constant current source chip, an AD sampling chip, and a reference power supply chip are fixedly mounted on the second circuit board.

[0016] Optionally, both the first circuit board and the second circuit board are disposed within the housing.

[0017] Optionally, an electrical signal interface is fixedly installed at the end of the housing away from the pressure sensor. The electrical signal interface is electrically connected to a power strip, and both the first circuit board and the second circuit board are electrically connected to the power strip.

[0018] Optionally, the display control module includes:

[0019] Watch case, wherein the watch case is detachably connected to the end of the connector away from the outer casing;

[0020] The display screen is fixedly installed inside the watch case and is electrically connected to the electrical signal interface.

[0021] Optionally, the display screen is electrically connected to a digital capacitive converter.

[0022] Optionally, a circuit board and a power supply electrically connected to the circuit board are fixedly installed inside the watch case;

[0023] The circuit board is electrically connected to a power management chip, a display driver, and a touch sensing chip.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When producing a modular digital pressure gauge, the pressure acquisition module, display control module, and connectors are manufactured and processed separately. Then, according to the order requirements, the pressure acquisition modules and display control modules with different ranges are assembled to realize arbitrary and rapid combination of the pressure acquisition modules and display control modules. This allows for the quick combination of a modular digital pressure gauge with different ranges, meeting customers' needs for multiple ranges and improving the production efficiency of a modular digital pressure gauge.

[0026] 2. When the pressure acquisition module or display control module malfunctions, the corresponding module can be quickly replaced, facilitating the maintenance of a modular digital pressure gauge. Attached Figure Description

[0027] Figure 1 This is an exploded view of the structure of an embodiment of this application;

[0028] Figure 2 This is an exploded view of the pressure acquisition module.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Pressure acquisition module; 11. Pressure sensor; 111. Pins of pressure sensor; 12. Housing; 121. Electrical signal interface; 13. Circuit module; 131. First circuit board; 132. Temperature sensor; 133. Second circuit board; 134. Power strip;

[0031] 2. Display control module; 21. Case; 22. Display screen;

[0032] 3. Connectors. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 and 2 This application will be described in further detail.

[0034] This application discloses a modular digital pressure gauge.

[0035] Reference Figure 1 A modular digital pressure gauge includes a pressure acquisition module 1, a display and control module 2, and a connector 3. The pressure acquisition module 1 is used for pressure signal sampling, temperature signal sampling, and pressure calculation. The display and control module 2 is used for human-machine interaction and pressure value display. The connector 3 is used to connect the pressure acquisition module 1 and the display and control module 2. The connector 3 is a nut, and it securely connects the pressure acquisition module 1 and the display and control module 2 via a threaded connection.

[0036] In the production of a modular digital pressure gauge, pressure acquisition module 1, display control module 2, and connector 3 are manufactured and processed separately. Then, pressure acquisition module 1 and display control module 2 with different ranges are assembled according to order requirements, so as to realize arbitrary and rapid combination of pressure acquisition module 1 and display control module 2. This allows for the quick combination of a modular digital pressure gauge with different ranges, meeting customers' needs for multiple ranges and improving the production efficiency of a modular digital pressure gauge.

[0037] When the pressure acquisition module 1 or the display control module 2 malfunctions, the corresponding module can be quickly replaced, facilitating the maintenance of a modular digital pressure gauge.

[0038] Reference Figure 1 and Figure 2 The pressure acquisition module 1 includes a pressure sensor 11, a housing 12, and a circuit module 13.

[0039] The housing 12 is fixedly mounted on the pressure sensor 11. The housing 12 is a cylindrical metal object and is threadedly connected to the connector 3. The circuit module 13 is electrically connected to the pressure sensor 11 and is housed inside the housing 12.

[0040] Reference Figure 1 and Figure 2 The circuit module 13 includes a first circuit board 131, a temperature sensor 132, and a second circuit board 133.

[0041] A first circuit board 131 is fixedly mounted on one end of the pin 111 of the pressure sensor. The first circuit board 131 is disposed inside the housing 12. A temperature sensor 132 is fixedly mounted on the first circuit board 131. A second circuit board 133 is fixedly mounted on the end of the pin 111 of the pressure sensor away from the pressure sensor body. The second circuit board 133 is disposed inside the housing 12. A constant current source chip, an AD sampling chip, and a reference power supply chip are fixedly mounted on the second circuit board 133.

[0042] An electrical signal interface 121 is fixedly installed at the end of the housing 12 away from the pressure sensor 11. The electrical signal interface 121 is electrically connected to a power strip 134. The first circuit board 131 and the second circuit board 133 are both electrically connected to the power strip 134.

[0043] Pressure sensor 11 samples the pressure, and temperature sensor 132 samples the temperature. After data processing, the signals are output to display control module 2 to realize the detection of pressure and temperature.

[0044] The constant current source chip, AD sampling chip, and reference power supply chip are fixedly mounted on the second circuit board 133 to prevent the constant current source chip, AD sampling chip, and reference power supply chip from affecting the sampling of the pressure sensor 11 and temperature sensor 132, thereby affecting the accuracy of the modular digital pressure gauge.

[0045] The electrical signal interface 121 is located at the end of the housing 12 away from the pressure sensor 11, enabling the output of the sampling signal, and facilitating the calibration and separate assembly of the pressure acquisition module 1 during the production stage.

[0046] Reference Figure 1 The display control module 2 includes a case 21 and a display screen 22.

[0047] The watch case 21 is threadedly connected to the end of the connector 3 away from the outer casing 12. The display screen 22 is fixedly installed inside the watch case 21. The display screen 22 is electrically connected to the electrical signal interface 121. The display screen 22 is a touch screen that integrates display and control. The upper half of the display screen 22 has menu icons and pressure display, and the lower half has touch-sensitive buttons. The touch-sensitive button part is electrically connected to a digital capacitive converter.

[0048] A circuit board and a power supply electrically connected to the circuit board are fixedly installed inside the case 21. The circuit board is electrically connected to a power management chip, a display driver, and a touch sensing chip.

[0049] The electrical signals detected by the pressure sensor 11 and temperature sensor 132 are transmitted to the display screen 22 through the electrical signal interface 121 to complete the reading of the pressure and temperature measurement results.

[0050] The housing 21 is threaded onto the connector 3, enabling quick installation of the display control module 2 and the connector 3, and allowing for arbitrary and rapid combination of the pressure acquisition module 1 and the display control module 2.

[0051] By detecting and recognizing the touch actions of human fingers through a digital capacitive converter, the responsiveness of the display screen 22 is improved, and mechanical wear and tear on the display screen 22 due to repeated use is avoided, which would cause the buttons on the display screen 22 to become unresponsive, thus extending the service life of a modular digital pressure gauge.

[0052] The implementation principle of a modular digital pressure gauge according to this application embodiment is as follows: In the production of a modular digital pressure gauge, a pressure acquisition module 1, a display control module 2, and a connector 3 are manufactured and processed separately. Then, according to order requirements, pressure acquisition modules 1 and display control modules 2 with different ranges are assembled, enabling arbitrary and rapid combination of the pressure acquisition modules 1 and display control modules 2. This allows for the quick assembly of modular digital pressure gauges with different ranges, meeting customer needs for multiple ranges and improving the production efficiency of modular digital pressure gauges. When pressure acquisition module 1 or display control module 2 malfunctions, the corresponding module can be quickly replaced, facilitating the maintenance of the modular digital pressure gauge.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular digital pressure gauge, characterized in that, It includes a pressure acquisition module (1), a display control module (2), and a connector (3); The connector (3) is used to connect the pressure acquisition module (1) and the display control module (2); The pressure acquisition module (1) includes: Pressure sensor (11); The housing (12) is fixedly mounted on the pressure sensor (11), and the housing (12) is detachably connected to the connector (3); The circuit module (13) is electrically connected to the pressure sensor (11) and is disposed inside the housing (12).

2. The modular digital pressure gauge according to claim 1, characterized in that, The circuit module (13) includes: The first circuit board (131) is fixedly mounted on the pin (111) of the pressure sensor; Temperature sensor (132) is fixedly mounted on the first circuit board (131).

3. A modular digital pressure gauge according to claim 2, characterized in that, A second circuit board (133) is also fixedly mounted on the pin (111) of the pressure sensor. A constant current source chip, an AD sampling chip, and a reference power supply chip are fixedly mounted on the second circuit board (133).

4. A modular digital pressure gauge according to claim 3, characterized in that, Both the first circuit board (131) and the second circuit board (133) are disposed inside the housing (12).

5. A modular digital pressure gauge according to claim 3, characterized in that, An electrical signal interface (121) is fixedly installed at one end of the housing (12) away from the pressure sensor (11). The electrical signal interface (121) is electrically connected to a power strip (134). The first circuit board (131) and the second circuit board (133) are both electrically connected to the power strip (134).

6. A modular digital pressure gauge according to claim 5, characterized in that, The display control module (2) includes: The watch case (21) is detachably connected to the end of the connector (3) away from the outer shell (12); The display screen (22) is fixedly installed inside the watch case (21) and is electrically connected to the electrical signal interface (121).

7. A modular digital pressure gauge according to claim 6, characterized in that, The display screen (22) is electrically connected to a digital capacitor converter.

8. A modular digital pressure gauge according to claim 6, characterized in that, A circuit board and a power supply electrically connected to the circuit board are fixedly installed inside the case (21); The circuit board is electrically connected to a power management chip, a display driver, and a touch sensing chip.

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