An integrated oil pressure sensor

Abstract

An integrated oil pressure sensor, comprising a mounting shell, a first power pin and a second power pin, the front surface of the mounting shell is provided with a concave cavity, a circuit board is installed in the concave cavity, the back surface of the mounting shell is provided with a plug, the plug is provided with a mounting hole, the mounting hole is communicated with the concave cavity, a sensor is installed in the mounting hole, the front side surface of the mounting shell is provided with a connector, one end of the first power pin and the second power pin extends into the connector, the other end of the first power pin and the second power pin extends into the concave cavity and forms a connection through a fuse safety resistor, the first power pin is further provided with a first pin in parallel, and the first pin is vertically arranged in the concave cavity. The utility model has overload protection function, reasonable structure design, is also convenient for maintenance replacement, and greatly reduces maintenance use cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to an integrated hydraulic pressure sensor. Background Technology

[0002] The working principle of an oil pressure sensor is that the pressure acts directly on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement proportional to the medium pressure. This causes a change in the resistance of the sensor, which is then converted by a corresponding module on the circuit board and outputs a standard signal corresponding to the pressure. The circuit board contains many different types of electronic components. Some of these components are fragile; if a large current passes through them, it will break down and burn them out. The burnout of these components will affect other current circuits or other components in the surrounding area, leading to short circuits and further damage to other devices. However, existing oil pressure sensors either lack overload protection or have the overload protection function integrated into the circuit board, resulting in an unreasonable structural design. Utility Model Content

[0003] To address the shortcomings of the existing technology, the purpose of this invention is to provide an integrated hydraulic pressure sensor with overload protection and a reasonable structural design.

[0004] The technical solution adopted by this utility model to solve its technical problem is an integrated oil pressure sensor, including a mounting housing, a first power pin, and a second power pin. The front of the mounting housing has a cavity, in which a circuit board is installed. The back of the mounting housing has a plug with a mounting hole that communicates with the cavity. The sensor is installed in the mounting hole. The front side of the mounting housing has a connector. One end of the first power pin and the second power pin both extend into the connector, and the other end of the first power pin and the second power pin both extend into the cavity and are connected by a fusible resistor. The first power pin also has a first pin connected in parallel, which is vertically inserted into the cavity.

[0005] The advantages of the above technical solution are as follows: the cavity is used to install the circuit board, the plug is used to install the sensor, and the connector is used to install the control wiring harness, thereby connecting the multiple components in an orderly manner and achieving the goal of miniaturization and integration of electronic equipment. By setting a vertical first pin on the first power pin, after the circuit board is installed, the first pin will pass through the circuit board, forming a circuit. The first power pin and the second power pin transmit power to the circuit board through the first pin. When an excessive current occurs in the circuit, the fuse resistor will blow first, thereby achieving overload protection and effectively protecting the circuit board. The structural design is reasonable, easy to repair and replace, and greatly reduces maintenance and usage costs.

[0006] Furthermore, the pressure sensor also includes a pair of signal pins, one end of each signal pin extending into the connector, the other end of each signal pin extending into the cavity, and the other end of each signal pin being configured as a second pin, which is vertically inserted into the cavity.

[0007] The advantages of the above technical solution are: the signal pin will directly contact the circuit board through the second pin, and one end of the signal pin will also extend into the connector. Therefore, no extra parts and wiring harness are needed. The signal pin can transmit the standard signal output by the circuit board to the control system. The structure is simple and the assembly is easy.

[0008] Furthermore, the recessed cavity is provided with multiple steps of different depths to form a first mounting cavity, a second mounting cavity, and a third mounting cavity with gradually decreasing apertures. The first mounting cavity is used to mate with the sealing cover plate, the second mounting cavity is used to mate with the circuit board, and the third mounting cavity is used to mate with the other end of the first power pin and the second power pin.

[0009] The advantages of the above technical solution are as follows: multiple steps of different depths are set in the concave cavity to form a first mounting cavity, a second mounting cavity, and a third mounting cavity with gradually decreasing aperture. This design not only adapts to the installation requirements of components of different sizes and types, but also ensures the stability and accuracy of component installation by precisely controlling the size and depth of each mounting cavity.

[0010] Furthermore, the connector is horizontally connected to the upper front side of the mounting housing, and the other ends of the first power pin, the second power pin, and the pair of signal pins are all in reverse L-shapes. The bottom of the second mounting cavity is also provided with a fourth mounting cavity, and the first pin and the second pin are vertically inserted into the fourth mounting cavity.

[0011] The advantages of the above technical solution are as follows: The connector is horizontally connected to the upper front side of the mounting housing. This design increases the distance between the connector and the bottom of the mounting housing, which facilitates the mating of the mounting housing and the control wiring harness. The other ends of the first power pin, the second power pin, and the signal pin are all set in an inverted L-shape structure, which makes the engagement of each pin with the mounting housing more secure and the connection more stable. The formation of the fourth mounting cavity also makes the connection between each pin and the circuit board safer.

[0012] Furthermore, a fixing seat is provided on the right side of the mounting housing, and a receiving component made of hard metal is provided on the fixing seat, with a fixing through hole through the receiving component.

[0013] The advantages of the above technical solution are: by setting a hard metal support on the fixed base, the fixing bolts will not deform the mounting shell due to the fixing pressure of the two after they cooperate with the fixing through hole on the support, thus ensuring the reliability of use.

[0014] Furthermore, the upper inner wall of the connector is provided with an anti-misalignment post. The cross-section of the anti-misalignment post is a trapezoid with a larger top and a smaller bottom, and the width symmetry center of the anti-misalignment post is offset from the width symmetry center of the connector.

[0015] The advantages of adopting the above technical solution are: when the wrong control harness or the incorrect insertion direction is used, the anti-misalignment post can effectively prevent the control harness from being smoothly inserted into the connector, thus ensuring the safety of use.

[0016] Furthermore, a fastening block is provided on the left inner wall surface and / or the right inner wall surface of the connector, and a fastening groove is provided on the rear inner wall surface of the connector, with the fastening groove and the anti-misalignment column arranged on opposite sides.

[0017] The advantages of adopting the above technical solution are: by setting fastening blocks and fastening grooves, the connection between the connector and the control harness is more stable.

[0018] Furthermore, a sealing ring groove is provided on the peripheral wall surface of the plug, and the sealing ring groove is used to install a seal.

[0019] The advantages of adopting the above technical solution are: by setting a sealing ring groove for installing the sealing element, a reliable seal is achieved, avoiding leakage at the connection between the plug and the oil tank, and the product performs well.

[0020] Furthermore, the back of the mounting housing is provided with mounting positioning holes, which are used to mate with mounting positioning posts.

[0021] The advantages of adopting the above technical solution are: by setting installation positioning holes to cooperate with installation positioning columns, the installation effect of the mounting shell is better. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention;

[0024] Figure 3 The mounting housing structure of this utility model is viewed from Figure 1 ;

[0025] Figure 4 The mounting housing structure of this utility model is viewed from Figure 2

[0026] Figure 5 The mounting shell structure of this utility model is viewed as follows. Figure 3 .

[0027] In the diagram: 1-Mounting housing, 2-First power pin, 3-Second power pin, 4-Plug, 5-Mounting hole, 6-Connector, 7-Fuse resistor, 8-First pin, 9-Signal pin, 10-Second pin, 11-First mounting cavity, 12-Second mounting cavity, 13-Third mounting cavity, 14-Fourth mounting cavity, 15-Fixing base, 16-Receiving component, 17-Fixing through hole, 18-Anti-misalignment post, 19-Fastening block, 20-Fastening groove, 21-Sealing ring groove, 22-Mounting positioning hole. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model and / or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. Furthermore, references to orientation only indicate the relative positional relationship between the components, not their absolute positional relationship.

[0029] Please see Figures 1 to 5 As shown, an integrated hydraulic pressure sensor includes a mounting housing 1, a first power pin 2, and a second power pin 3. The front of the mounting housing 1 has a recess, and the back of the mounting housing 1 has a plug 4, which is inserted into an oil tank. The plug 4 has a mounting hole 5 that communicates with the recess. The front side of the mounting housing 1 has a connector 6 for mates with a control wiring harness. One end of both the first power pin 2 and the second power pin 3 extends into the connector 6, and the other end of both the first power pin 2 and the second power pin 3 extends into the recess and is connected via a fusible resistor 7. The first power pin 2 also has a first pin 8 connected in parallel, which vertically passes through the recess. In the aforementioned structure, the cavity is used to install the circuit board, the plug 4 is used to install the sensor, and the connector 6 is used to install the control wiring harness, thereby connecting the multiple components in an orderly manner and achieving the goal of miniaturization and integration of electronic equipment. By setting a vertical first pin 8 on the first power pin 2, after the circuit board is installed, the first pin 8 will pass through the circuit board, forming a circuit. The first power pin 2 and the second power pin 3 transmit power to the circuit board through the first pin 8. When an excessive current occurs in the circuit, the fuse resistor 7 will melt first, thereby achieving overload protection and effectively protecting the circuit board. The structural design is reasonable, easy to repair and replace, and greatly reduces maintenance and usage costs.

[0030] In this embodiment, the pressure sensor also includes a pair of signal pins 9. One end of each signal pin 9 extends into the connector 6. The ends of the signal pins 9 and the first power pin 2 and the second power pin 3 in the connector 6 are arranged side by side. The other end of the signal pins 9 extends into the cavity, and the other end of the signal pin 9 is designated as a second pin 10. The second pin 10 is vertically inserted into the cavity and is also arranged side by side with the first pin 8. In the above structure, the signal pins 9 directly contact the circuit board through the second pin 10, and one end of the signal pins 9 also extends into the connector 6. Therefore, no extra parts or wiring harnesses are needed, and the signal pins 9 can transmit the standard signal output from the circuit board to the control system. The structure is simple and easy to assemble.

[0031] In this embodiment, the cavity is provided with multiple steps of different depths to form a first mounting cavity 11, a second mounting cavity 12, and a third mounting cavity 13 with gradually decreasing apertures. The first mounting cavity 11 is used to fit a sealing cover plate, the second mounting cavity 12 is used to fit a circuit board, and the third mounting cavity 13 is used to fit the other end of the first power pin 2 and the second power pin 3. In this embodiment, the multiple steps of different depths provided in the cavity form the first mounting cavity 11, the second mounting cavity 12, and the third mounting cavity 13 with gradually decreasing apertures. This design not only adapts to the installation requirements of components of different sizes and types, but also ensures the stability and accuracy of component installation by precisely controlling the size and depth of each mounting cavity.

[0032] In this embodiment, the connector 6 is horizontally connected to the upper front side of the mounting housing 1, and the other ends of the first power pin 2, the second power pin 3, and a pair of signal pins 9 are all in reverse L-shapes. The bottom of the second mounting cavity 12 is also provided with a fourth mounting cavity 14, which is located on one side of the third mounting cavity 13. The first pin 8 and the second pin 10 are vertically inserted into the fourth mounting cavity 14. In the above structure, the connector 6 is horizontally connected to the upper front side of the mounting housing 1. This design increases the distance between the connector 6 and the bottom of the mounting housing 1, thereby facilitating the connection between the mounting housing 1 and the control wiring harness. Setting the other ends of the first power pin 2, the second power pin 3, and the signal pins 9 into reverse L-shapes makes the connection between each pin and the mounting housing 1 more secure and the connection more stable. The formation of the fourth mounting cavity 14 also makes the connection between each pin and the circuit board safer.

[0033] In this embodiment, a fixing seat 15 is also provided on the right side of the mounting housing 1. The fixing seat 15 is provided with a hard metal receiving member 16, and a fixing through hole 17 is provided through the receiving member 16. In the above structure, since the fixing bolt is provided with a hard metal receiving member 16 on the fixing seat 15, the fixing pressure of the two will not cause the mounting housing 1 to deform after the fixing bolt is engaged with the fixing through hole 17 on the receiving member 16, thus ensuring the reliability of use.

[0034] In this embodiment, an anti-misalignment post 18 is provided on the upper inner wall of the connector 6. The cross-section of the anti-misalignment post 18 is a trapezoid with a larger top and a smaller bottom, and the width symmetry center of the anti-misalignment post 18 is offset from the width symmetry center of the connector 6. In the above structure, when the wrong control harness or the incorrect insertion direction is not correct, the anti-misalignment post 18 can effectively prevent the control harness from being smoothly inserted into the connector 6, thus ensuring the safety of use.

[0035] In this embodiment, a fastening block 19 is provided on the left inner wall surface and / or the right inner wall surface of the connector 6, and a fastening groove 20 is provided on the rear inner wall surface of the connector 6. The fastening groove 20 and the anti-misalignment post 18 are arranged on opposite sides. In the above structure, by providing the fastening block 19 and the fastening groove 20, the connection between the connector 6 and the control harness is more stable.

[0036] In this embodiment, a sealing ring groove 21 is provided on the peripheral wall surface of the plug 4. The sealing ring groove 21 is used to install the sealing element. In the above structure, by setting the sealing ring groove 21 for installing the sealing element, a reliable seal is achieved, avoiding leakage at the connection between the plug 4 and the oil tank, and the product has a good performance.

[0037] In this embodiment, the back of the mounting housing 1 is also provided with a mounting positioning hole 22, which is used to cooperate with the mounting positioning post. In the above structure, by setting the mounting positioning hole 22 to cooperate with the mounting positioning post, the installation effect of the mounting housing 1 is better.

[0038] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An integrated hydraulic pressure sensor, characterized in that: The device includes a mounting housing (1), a first power pin (2), and a second power pin (3). The front of the mounting housing (1) has a cavity in which a circuit board is installed. The back of the mounting housing (1) has a plug (4) with a mounting hole (5) connected to the cavity. A sensor is installed in the mounting hole (5). The front side of the mounting housing (1) has a connector (6). One end of the first power pin (2) and the second power pin (3) extends into the connector (6). The other end of the first power pin (2) and the second power pin (3) extends into the cavity and is connected by a fuse resistor (7). The first power pin (2) also has a first pin (8) connected in parallel, which is vertically inserted into the cavity.

2. The integrated hydraulic pressure sensor according to claim 1, characterized in that: The pressure sensor also includes a pair of signal pins (9), one end of each signal pin (9) extends into the connector (6), the other end of each signal pin (9) extends into the cavity, and the other end of each signal pin (9) is provided as a second pin (10), which is vertically inserted into the cavity.

3. An integrated hydraulic pressure sensor according to claim 2, characterized in that: The recessed cavity is provided with multiple steps of different depths to form a first mounting cavity (11), a second mounting cavity (12), and a third mounting cavity (13) with gradually decreasing apertures. The first mounting cavity (11) is used to fit the sealing cover plate, the second mounting cavity (12) is used to fit the circuit board, and the third mounting cavity (13) is used to fit the other end of the first power pin (2) and the second power pin (3).

4. An integrated hydraulic pressure sensor according to claim 3, characterized in that: The connector (6) is horizontally connected to the upper front side of the mounting housing (1), and the other ends of the first power pin (2), the second power pin (3), and the pair of signal pins (9) are all in reverse L-shapes. The bottom of the second mounting cavity (12) is also provided with a fourth mounting cavity (14), and the first pin (8) and the second pin (10) are vertically inserted into the fourth mounting cavity (14).

5. An integrated hydraulic pressure sensor according to claim 1, characterized in that: The mounting housing (1) is also provided with a fixing seat (15) on the right side. The fixing seat (15) is provided with a hard metal support (16) and a fixing through hole (17) is provided through the support (16).

6. An integrated hydraulic pressure sensor according to claim 1, characterized in that: The upper inner wall of the connector (6) is provided with an anti-misalignment post (18). The cross-section of the anti-misalignment post (18) is a trapezoid with a larger upper section and a smaller lower section. The width symmetry center of the anti-misalignment post (18) is offset from the width symmetry center of the connector (6).

7. An integrated hydraulic pressure sensor according to claim 6, characterized in that: Fastening blocks (19) are provided on the left inner wall and / or the right inner wall of the connector (6), and fastening grooves (20) are provided on the rear inner wall of the connector (6), and the fastening grooves (20) and the anti-misalignment posts (18) are arranged on opposite sides.

8. An integrated hydraulic pressure sensor according to claim 1, characterized in that: The plug (4) has a sealing ring groove (21) on its peripheral wall surface, which is used to install a seal.

9. An integrated hydraulic pressure sensor according to claim 1, characterized in that: The mounting housing (1) is also provided with a mounting positioning hole (22) on the back side, which is used to cooperate with the mounting positioning post.

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