Air pressure sensor

Abstract

The utility model provides an air pressure sensor. The air pressure sensor comprises a PCB, at least two components and a connecting piece, a plurality of connecting wires are arranged in the PCB, the at least two components are installed on the PCB, different components are electrically connected with different connecting wires, and the connecting piece is attached to the PCB to be connected with different connecting wires, so that different components are electrically connected. According to the air pressure sensor, the wires of the PCB are all located in the PCB and are not prone to being corroded by air or liquid, and the stability of the air pressure sensor is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air pressure sensors, in particular to an air pressure sensor. BACKGROUND

[0002] Air pressure sensors are commonly used in blood pressure measurement, altitude measurement, safety monitoring of automobile tires and other fields. At present, it is generally necessary to wire on a PCB board, thereby connecting various components by a circuit.

[0003] In the related art, the wiring of the PCB board of the air pressure sensor is exposed and is easily corroded by air or liquid. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide an air pressure sensor, which can improve the technical problem of high packaging cost of the air pressure sensor.

[0005] Embodiments of the present application provide an air pressure sensor, comprising:

[0006] A PCB board, an inside of the PCB board being provided with a plurality of connection lines;

[0007] At least two components are mounted on the PCB board, and different components are electrically connected to different connection lines;

[0008] A connecting piece is attached to the PCB board to connect different connection lines, so that different components are electrically connected.

[0009] In an embodiment, the PCB board is formed with a groove, and the connecting piece is arranged in the groove.

[0010] In an embodiment, the connecting piece is sealingly connected to a side wall surface of the groove.

[0011] In an embodiment, one end of the connection line is electrically connected to the component, and the other end of the connection line is exposed on a side wall surface of the groove or a bottom wall of the groove to be electrically connected to the connecting piece.

[0012] In an embodiment, one end of the connection line is electrically connected to the component, a wall surface of the groove is formed with a connection channel, the other end of the connection line is arranged in the connection channel, and the connecting piece comprises a body and a connecting end protruding from the body, the connecting end being at least partially arranged in the connection channel to be electrically connected to the other end of the connection line.

[0013] In an embodiment, an upper surface of the connecting piece is an insulating surface, a bottom wall and / or a side wall of the connecting piece is provided with a conductive part, the conductive part is arranged in the groove, and the conductive part is adapted to electrically connect different connection lines.

[0014] In an embodiment, the connecting piece is installed in the groove by at least one of bonding, clamping and interference fit.

[0015] In an embodiment, the at least two components include a gas pressure detecting component and a controller, and the connecting piece and the connecting wire are connected in series between the gas pressure detecting component and the controller, so that the gas pressure detecting component is electrically connected to the controller.

[0016] In an embodiment, the plurality of connecting wires include a first connecting wire and a second connecting wire, one end of the first connecting wire is electrically connected to the gas pressure detecting component, one end of the second connecting wire is electrically connected to the controller, and the connecting piece electrically connects the other end of the first connecting wire and the other end of the second connecting wire.

[0017] In an embodiment, the PCB is formed with a gas passage, the gas passage penetrates through the first outer wall surface and the second outer wall surface of the PCB, the gas pressure detecting component is arranged on the first outer wall surface of the PCB, the gas pressure detecting component is electrically connected to the PCB, and a detection part of the gas pressure detecting component is opposite to the gas passage.

[0018] Advantages of embodiments of the present application:

[0019] In the embodiments of the present application, the non-exposed connecting wire is arranged in the PCB in advance, that is, the connecting wire is not arranged on the surface of the PCB, and the connecting wire is not easily corroded by air or liquid. The components required by the gas pressure sensor are arranged on the PCB, different components and different connecting wires are electrically connected, and then the different connecting wires are connected by the connecting piece, so that the different components are electrically connected. That is, the present application pre-arranges a plurality of non-exposed connecting wires in the PCB, and connects the different connecting wires by the connecting piece, so that the different components are electrically connected, the assembly of the gas pressure sensor is realized, the wiring of the PCB of the gas pressure sensor is located in the PCB, is not easily corroded by air or liquid, and the stability of the gas pressure sensor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic diagram of a gas pressure sensor provided by an embodiment of the present application;

[0022] Figure 2 is one of sectional views of a partial structure of a gas pressure sensor provided by an embodiment of the present application;

[0023] Figure 3 is one of sectional views of a partial structure of a gas pressure sensor provided by an embodiment of the present application;

[0024] Figure 4 is one of structural schematic diagrams of a gas pressure sensor provided by an embodiment of the present application, in which a gas passage is formed;

[0025] Figure 5 is one of structural schematic diagrams of a gas pressure sensor provided by an embodiment of the present application, in which a gas passage is formed. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person skilled in the art without any creative work under the premise that the embodiments in the present application are not deviated, belong to the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the present application, and are not used for limiting the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the contour of the device.

[0027] The gas pressure sensor of the present application will be described below with reference to the drawings in the embodiments of the present application. Figures 1 to 5 The gas pressure sensor of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0028] According to the embodiments of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the gas pressure sensor comprises a PCB board 1, at least two components 2 and a connecting sheet 3, the inside of the PCB board 1 is provided with a plurality of connecting lines 11, the at least two components 2 are mounted on the PCB board 1, different components 2 are electrically connected with different connecting lines 11, and the connecting sheet 3 is attached to the PCB board 1 to connect different connecting lines 11, so that different components 2 are electrically connected.

[0029] According to the air pressure sensor of the embodiment of the present application, the non-exposed connecting lines 11 are arranged in the PCB 1 in advance, that is, the connecting lines 11 are not arranged on the surface of the PCB 1, and the connecting lines 11 are not easily corroded by air or liquid. The components 2 required by the air pressure sensor are mounted on the PCB 1, the different components 2 and the different connecting lines 11 are electrically connected, and then the different connecting lines 11 are connected by the connecting piece 3, so that the different components 2 are electrically connected. That is, the non-exposed connecting lines 11 are arranged in the PCB 1 in advance, and the different connecting lines 11 are connected by the connecting piece 3, so that the different components 2 are electrically connected, the assembly of the air pressure sensor is realized, the wires of the PCB 1 of the air pressure sensor are all arranged in the PCB 1, the wires are not easily corroded by air or liquid, and the stability of the air pressure sensor is improved.

[0030] For example, the connecting lines 11 are arranged in the PCB 1, and the mounting positions are reserved on the PCB 1. When the components 2 are mounted on the PCB 1, one end of one or at least two connecting lines 11 is electrically connected, and then the connecting lines 11 connected with the different components 2 are connected by the connecting piece 3, so that the electrical connection between the different components 2 is realized.

[0031] In one embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the PCB 1 is formed with a groove 12, and the connecting piece 3 is arranged in the groove 12.

[0032] It can be understood that the connecting piece 3 is arranged in the groove 12, the groove 12 can limit the connecting piece 3 to a certain extent, so that the connecting piece 3 can be stable to stably connect the different connecting lines 11.

[0033] In one embodiment of the present application, the connecting piece 3 is sealingly connected with the side wall surface of the groove 12.

[0034] It can be understood that the connecting piece 3 is sealingly connected with the side wall surface of the groove 12, so that the external air or liquid cannot pass through the connecting position of the connecting piece 3 and the groove 12, the external air or liquid can be effectively prevented from contacting the connecting lines 11 through the connecting position of the connecting piece 3 and the groove 12, and the connecting lines 11 can be effectively prevented from being corroded by the external air or liquid.

[0035] In one embodiment of the present application, one end of the connecting line 11 is electrically connected with the component 2, and the other end of the connecting line 11 is exposed from the side wall surface of the groove 12 or the bottom wall of the groove 12 to be electrically connected with the connecting piece 3.

[0036] It can be understood that the other end of the connecting wire 11 is arranged to be exposed to the side wall or the bottom wall of the groove 12, so that when the connecting piece 3 is installed in the groove 12, the connecting piece 3 can be in contact with the other end of the connecting wire 11 to realize the electrical connection between the connecting piece 3 and the connecting wire 11.

[0037] For example, the other end of the connecting wire 11 exposed to the side wall or the bottom wall of the groove 12 means that the end surface of the other end of the connecting wire 11 is flush with the side wall surface or the bottom wall surface of the groove 12, and it can also mean that the other end of the connecting wire 11 protrudes from the side wall or the bottom wall of the groove 12.

[0038] In an embodiment of the present application, one end of the connecting wire 11 is electrically connected to the component 2, the wall surface of the groove 12 is formed with a connecting channel, the other end of the connecting wire 11 is arranged in the connecting channel, and the connecting piece 3 includes a body and a connecting end protruding from the body, and the connecting end is at least partially in the connecting channel to electrically connect with the other end of the connecting wire 11.

[0039] It can be understood that when the connecting piece 3 is installed at the groove 12, the connecting end of the connecting piece 3 is inserted into the connecting channel and electrically connected with the other end of the connecting wire 11 to realize the electrical connection between the connecting piece 3 and the connecting wire 11.

[0040] It can be understood that the connecting piece 3 can include a plurality of connecting ends, and each connecting end corresponds to a connecting wire 11.

[0041] In an embodiment of the present application, the upper surface of the connecting piece 3 is an insulating surface, the bottom wall and / or the side wall of the connecting piece 3 is provided with a conductive part, the conductive part is located in the groove 12, and the conductive part is adapted to electrically connect different connecting wires 11.

[0042] It can be understood that when the connecting piece 3 is installed in the groove 12, the conductive part is located in the groove 12 and electrically connected with at least two different connecting wires 11 to electrically connect different components 2.

[0043] The upper surface of the connecting piece 3 is an insulating surface, and the upper surface is exposed, so that the exposed upper surface of the connecting piece 3 is not electrified.

[0044] In an embodiment of the present application, the connecting piece 3 is installed in the groove 12 by at least one of adhesion, clamping and interference fit to improve the installation stability of the connecting piece 3.

[0045] In an embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the at least two components 2 include a gas pressure detecting member 21 and a controller 22, the connecting piece 3 and the connecting wire 11 are connected in series between the gas pressure detecting member 21 and the controller 22 to electrically connect the gas pressure detecting member 21 and the controller 22.

[0046] It can be understood that the air pressure detecting member 21 can detect the air pressure and transmit the detection data to the controller 22, so that the air pressure sensor can realize the air pressure detection function.

[0047] It can be understood that the component 2 here is only an example, and the component 2 can also be a positive and negative electrode for power supply, a ground connection part, a signal input and output part, etc.

[0048] In the embodiment of the application, the connecting sheet 3 is, for example, a patch, which is attached to the PCB board 1.

[0049] In an embodiment of the application, as Figure 1 , Figure 2 and Figure 3 , the plurality of connecting lines 11 include a first connecting line 111 and a second connecting line 112, one end of the first connecting line 111 is electrically connected with the air pressure detecting member 21, one end of the second connecting line 112 is electrically connected with the controller 22, and the connecting sheet 3 electrically connects the other end of the first connecting line 111 and the other end of the second connecting line 112.

[0050] It can be understood that by electrically connecting the other end of the first connecting line 111 and the other end of the second connecting line 112 through the connecting sheet 3, the air pressure detecting member 21 and the controller 22 are electrically connected, which realizes the electrical connection of the air pressure detecting member 21 and the controller 22 without using exposed wires, and can effectively avoid the corrosion of the wires of the air pressure sensor by air or liquid.

[0051] In an embodiment of the application, as Figure 1 and Figure 2 , the PCB board 1 is formed with a gas passage 13, the gas passage 13 penetrates through the first outer wall surface and the second outer wall surface of the PCB board 1, the air pressure detecting member 21 is arranged on the first outer wall surface of the PCB board 1, the air pressure detecting member 21 is electrically connected with the PCB board 1, and the detection part of the air pressure detecting member 21 is directly opposite to the gas passage 13.

[0052] It can be understood that the gas passage 13 is formed at the PCB board 1, and then the air pressure detecting member 21 is installed on the gas passage 13, the gas or gas pressure outside is directly transmitted to the detection part of the air pressure detecting member 21 through the gas passage 13, so that the air pressure detecting member 21 can directly detect the gas pressure outside through the gas passage 13 on the PCB board 1, without the need to additionally set a gas nozzle, thereby simplifying the structure of the air pressure sensor.

[0053] It can be understood that the air pressure sensor in the related art is generally fixed with the air pressure detection piece 21 on the air nozzle shell, and the structure is relatively complex, and the production process is relatively troublesome. The gas passage 13 is directly formed on the PCB 1, the air nozzle shell structure is omitted, the structure of the air pressure sensor is simplified, and the cost can be saved.

[0054] In an embodiment of the present application, the cross-sectional area of the gas passage 13 gradually decreases along the direction from the second outer wall surface to the first outer wall surface.

[0055] It can be understood that the cross-sectional area of the gas passage 13 is designed to be smaller as it is closer to the air pressure detection piece 21, so that the gas passage 13 can concentrate the gas, and the gas is concentrated at the detection position of the air pressure detection piece 21, which ensures the detection accuracy of the air pressure detection piece 21.

[0056] In an embodiment of the present application, as Figure 3 and Figure 4 Figure 5 Figure 4 Figure 5 , the air pressure sensor comprises a flexible waterproof film 4, the flexible waterproof film 4 is sealingly connected to the second outer wall surface, and a sealing cavity 41 is formed between the flexible waterproof film 4 and the second outer wall surface, and the gas passage 13 communicates with the sealing cavity 41.

[0057] It can be understood that the second outer wall surface of the PCB 1 is sealingly connected with the flexible waterproof film 4, that is, the flexible waterproof film 4 can cover the gas passage 13, so that the external water vapor cannot enter the gas passage 13 through the second outer wall surface, that is, the water vapor cannot enter the air pressure detection piece 21 through the gas passage 13, thereby avoiding the short circuit of the air pressure sensor due to damp, and improving the waterproof performance of the air pressure sensor.

[0058] It can be understood that the flexible waterproof film 4 will deform under pressure, and when the flexible waterproof film 4 is subjected to external gas or liquid pressure, the flexible waterproof film 4 will deform towards the air pressure detection piece 21, at this time the flexible waterproof film 4 will extrude the gas between the flexible waterproof film 4 and the second outer wall surface, so that the air pressure detection piece 21 can detect the pressure, that is, the flexible waterproof film 4 can improve the waterproof performance of the air pressure sensor while transmitting the external pressure to the air pressure detection piece 21, so that the air pressure sensor can detect the external pressure.

[0059] The embodiments of the present application are described in detail above, and specific examples are applied to the principles and implementation modes of the present application. The above description of the embodiments is only used to help understand the method and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as limiting the present application.

Claims

1. A gas pressure sensor characterized by comprising: The application relates to a PCB board and a connecting piece. The PCB board is internally provided with a plurality of connecting lines. At least two components are mounted on the PCB board, and different components are electrically connected with different connecting lines. The connecting piece is attached to the PCB board to connect different connecting lines, so that different components are electrically connected. The at least two components include a gas pressure detection component and a controller, and the connecting piece and the connecting line are connected in series between the gas pressure detection component and the controller, so that the gas pressure detection component and the controller are electrically connected.

2. The air pressure sensor according to claim 1, characterized in that, The PCB board is provided with a groove, and the connecting piece is arranged in the groove.

3. The air pressure sensor according to claim 2, characterized in that The connecting piece is sealingly connected with the side wall of the groove.

4. The air pressure sensor according to claim 2, characterized by One end of the connecting line is electrically connected with the component, and the other end of the connecting line is exposed on the side wall of the groove or the bottom wall of the groove to be electrically connected with the connecting piece.

5. The air pressure sensor of claim 2, wherein, One end of the connecting line is electrically connected with the component, the wall of the groove is provided with a connecting channel, the other end of the connecting line is arranged in the connecting channel, the connecting piece includes a body and a connecting end protruding from the body, and the connecting end is at least partially arranged in the connecting channel to be electrically connected with the other end of the connecting line.

6. The air pressure sensor of claim 2, wherein, The upper surface of the connecting piece is an insulating surface, the bottom wall and / or the side wall of the connecting piece is provided with a conductive part, the conductive part is arranged in the groove, and the conductive part is adapted to electrically connect different connecting lines.

7. The air pressure sensor of claim 2, wherein, The connecting piece is mounted in the groove by at least one of adhesion, clamping and interference fit.

8. The air pressure sensor according to any one of claims 1 to 7, characterized in that The plurality of connecting lines include a first connecting line and a second connecting line, one end of the first connecting line is electrically connected with the gas pressure detection component, one end of the second connecting line is electrically connected with the controller, and the connecting piece electrically connects the other end of the first connecting line and the other end of the second connecting line.

9. The air pressure sensor according to any one of claims 1 to 7, characterized in that, The PCB board is provided with a gas channel, the gas channel penetrates through the first outer wall surface and the second outer wall surface of the PCB board, the gas pressure detection component is arranged on the first outer wall surface of the PCB board, the gas pressure detection component is electrically connected with the PCB board, and the detection part of the gas pressure detection component is opposite to the gas channel.

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