An integrated sensor

Abstract

The utility model relates to an integrated sensor, it includes: mounting seat body, first circuit board, second circuit board, first circuit board with second circuit board can be dismantled type installation on mounting seat body, electric wire, pressing plate, electric wire is installed to mounting seat body, the pressing plate is crimped on electric wire, and the pressing plate with mounting seat body are connected together through preset number's bolt / screw, in this way make electric wire be fixed between the pressing plate with mounting seat body, preset number's sensor cable, sensor cable with first circuit board / second circuit board electric connection, and sensor cable is installed on mounting seat body.

Description

Technical Field

[0001] This utility model relates to the field of sensors, specifically to an integrated sensor. Background Technology

[0002] As a core actuating component of automotive automatic transmissions (including electric transmissions), the performance and reliability of the shift actuator directly determine the vehicle's shifting quality, power response speed, and overall driving experience. The core function of this mechanism is to accurately receive electronic control commands from the transmission control unit and convert them into linear or rotary drive forks, thereby driving the synchronizer to engage and disengage different gears, ultimately achieving gear shifting. In this precise control closed loop, real-time and accurate sensing of the shift fork position is crucial to ensuring successful shifting. The sensor, as the system's "sensor," must be able to continuously and accurately feed back the instantaneous position signal of the shift fork to the transmission control unit. The control unit compares this feedback signal with the target position, thereby precisely controlling the operation of the actuator motor, forming a high-precision closed-loop control. Therefore, the accuracy, reliability, and response speed of the sensor are core elements for ensuring smooth and accurate shifting and avoiding gear engagement failures, gear grinding, and other malfunctions. However, the inventors have discovered that existing position sensors used in shift actuators still have several drawbacks that urgently need to be addressed, hindering further improvements in the overall system performance and control of manufacturing costs. These are specifically manifested as follows:

[0003] The complex structure results in low space utilization; the cumbersome assembly process leads to low automation; connection reliability presents significant challenges; and overall costs remain high: the complex structure directly increases material costs, while the cumbersome assembly process significantly increases labor and time costs. Furthermore, the discrete structure also creates inconvenience for later maintenance and repair.

[0004] In summary, existing shift position sensors are no longer sufficient to fully meet the growing demands of the modern automotive industry for high performance, high reliability, and low cost in terms of structural optimization, assembly efficiency, and connection reliability. Therefore, there is an urgent need for a compact, highly integrated, easy-to-assemble, and highly reliable shift position sensing solution to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated sensor, which includes:

[0006] Mounting base;

[0007] A first circuit board and a second circuit board are detachably mounted on the mounting base.

[0008] The cable and the pressure plate are provided. The cable is installed on the mounting base, the pressure plate is pressed onto the cable, and the pressure plate and the mounting base are connected together by a predetermined number of bolts / screws, so that the cable is fixed between the pressure plate and the mounting base.

[0009] A predetermined number of sensor cables are provided, which are electrically connected to the first circuit board / second circuit board and are mounted on the mounting base.

[0010] Furthermore, the mounting base is provided with a first mounting groove and a second mounting groove. The mounting base has a first surface, and the first mounting groove is recessed from the first surface to a predetermined depth. The second mounting groove is disposed on the surface opposite to the first surface and is recessed from that surface to a predetermined depth. The first circuit board is mounted in the first mounting groove, and the second circuit board is mounted in the second mounting groove. The first circuit board and the mounting base are detachably connected together by screws / bolts, and the second circuit board and the mounting base are detachably connected together by screws / bolts.

[0011] Furthermore, the mounting base is provided with a preset number of first wire-locking grooves, the mounting base has a second surface, the first wire-locking grooves are recessed from the first surface to a preset depth, and the first wire-locking grooves are adapted to the wires; the wires are installed in the first wire-locking grooves, and the wires are pressed by the pressure plate, thereby fixing the wires on the mounting base.

[0012] Furthermore, the mounting base is also provided with a second wire-holding groove, which is recessed to a predetermined depth from the first surface of the mounting base and communicates with the first mounting groove. The sensor cable is electrically connected to the first circuit board on one hand, and at least a portion of the sensor cable is inserted into the second wire-holding groove on the other hand. At least a portion of the sensor cable passes through a take-up tube, thereby constraining the sensor cable.

[0013] Furthermore, it also includes a base, a first limiting post, and a second limiting post, both of which are mounted on the base. The mounting body is provided with a first mounting hole adapted to the first limiting post and a second mounting hole adapted to the second limiting post. The first limiting post is inserted into the first mounting hole, and the second limiting post is inserted into the second mounting hole, thereby enabling the mounting body to be detachably mounted on the base.

[0014] Furthermore, the mounting base is provided with a preset number of notches, the notches are connected to the first wire-locking groove, and the notches are formed from a defect on the second surface of the mounting base; the wire is installed in the first wire-locking groove, and at least a portion of the wire extends out from the notch.

[0015] The beneficial effects of this application are as follows: This application integrates discrete components such as circuit boards and cables into a unified mounting base through a highly modular design. This base features precisely designed mounting slots and wire-holding slots, achieving accurate positioning and orderly layout of components. This eliminates the redundancy of traditional split structures, significantly improving structural compactness, making it particularly suitable for space-constrained installation environments. This application employs a positioning-guided design (such as the interaction between limiting posts and mounting holes) and physical constraint paths (such as pre-set wire grooves), simplifying the complex wiring and alignment process into a standardized "placement-fixing" process. This greatly reduces assembly difficulty and reliance on skilled workers, improving production efficiency and product consistency, laying the foundation for automated production. This application effectively improves the shock resistance and durability of connection points in vibration environments through methods such as pressure plate fixing and wire groove constraints. Electrically, the optimized circuit design (such as multi-stage filtering) ensures the signal processing accuracy of the core chip in complex electromagnetic environments, thereby guaranteeing the long-term operational stability of the sensor as a whole. The modular and detachable design of this application makes partial repair and replacement possible, reducing later maintenance costs and difficulties. At the same time, the simplification of the structure reduces the types and quantities of materials, the optimization of the assembly process saves time, and the overall cost of the entire life cycle from manufacturing to maintenance is effectively controlled. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an integrated sensor provided by this utility model.

[0017] Figure 2 Exploded view of the components of an integrated sensor provided by this utility model.

[0018] Figure 3 A cross-sectional view of an integrated sensor provided by this utility model.

[0019] Figure 4 The circuit diagram of an integrated sensor circuit board provided by this utility model. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0021] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0022] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages).

[0023] Please refer to Figure 1-4 This application provides an integrated sensor (hereinafter referred to as "the sensor"), which includes:

[0024] Mounting base 2;

[0025] First circuit board 4 and second circuit board 13 are detachably mounted on the mounting base 2.

[0026] The wire 3 and the pressure plate 1 are installed on the mounting base 2. The pressure plate 1 is pressed onto the wire 3, and the pressure plate 1 and the mounting base 2 are connected together by a preset number of bolts / screws 8, so that the wire 3 is fixed between the pressure plate 1 and the mounting base 2.

[0027] A predetermined number of sensor cables 7 are provided, which are electrically connected to the first circuit board 4 / second circuit board 13 and mounted on the mounting base 2. In this application, the sensor includes a first circuit board 4 and a second circuit board 13, therefore, there are multiple sensor cables 7, and each of the first circuit board 4 and the second circuit board 13 is connected to a sensor cable 7. In this way, all components such as the circuit board, wires 3, and sensor cables 7 are integrated onto the mounting base 2, making the installation and structure simpler and the assembly efficiency higher.

[0028] In some embodiments of this application, please refer to Figure 1-4 The mounting base 2 is provided with a first mounting groove 21 and a second mounting groove 22. The mounting base 2 has a first surface 201, and the first mounting groove 21 is recessed from the first surface 201 to a predetermined depth. The second mounting groove 22 is disposed on the surface opposite to the first surface 201 and is recessed from that surface to a predetermined depth. The first circuit board 4 is mounted in the first mounting groove 21, and the second circuit board 13 is mounted in the second mounting groove 22. The first circuit board 4 and the mounting base 2 are detachably connected together by screws / bolts, and the second circuit board 13 is detachably connected together by screws / bolts. Of course, in addition to the connection structure between the first circuit board 4, the second circuit board 13 and the mounting base 2 mentioned in this application, the first circuit board 4 and the second circuit board 13 can also be mounted to the mounting base 2 by adhesive bonding.

[0029] In some embodiments of this application, please refer to Figure 1-4 The mounting base 2 is provided with a predetermined number of first wire-holding grooves 24. The mounting base 2 has a second surface 202. The first wire-holding grooves 24 are recessed from the first surface 201 to a predetermined depth and are adapted to the wire 3. The wire 3 is installed in the first wire-holding groove 24 and is pressed by the pressure plate 1, thereby fixing the wire 3 to the mounting base 2. In this application, the first wire-holding grooves 24 not only accommodate the wire 3, but also limit the wire 3, thereby preventing the wire 3 from running erratically and making the arrangement of the wire 3 more neat and controllable.

[0030] In some embodiments of this application, please refer to Figure 1-4The mounting base 2 is further provided with a second wire-holding groove 23, which is recessed to a predetermined depth from the first surface 202 of the mounting base 2 and communicates with the first mounting groove 21. The sensor cable 7 is electrically connected to the first circuit board 4 on one hand, and at least a portion of the sensor cable 7 is inserted into the second wire-holding groove 23 on the other hand. At least a portion of the sensor cable 7 passes through the take-up tube 6, thereby constraining the sensor cable 7. In this application, the first circuit board 4 and the second circuit board 13 are mounted on both sides of the mounting base 2. Therefore, at least one sensor cable 7 is electrically connected to the first circuit board 4, and at least one sensor cable 13 is electrically connected to the second circuit board 13. That is to say, there are at least two second wire-holding grooves 23, respectively distributed on both sides of the mounting base 2.

[0031] In some embodiments of this application, please refer to Figure 1-4 The sensor also includes a base 5, a first limiting post 11, and a second limiting post 12, both of which are mounted on the base 5. The mounting body 2 has a first mounting hole (not shown) adapted to the first limiting post 11 and a second mounting hole (not shown) adapted to the second limiting post 12. The first limiting post 11 is inserted into the first mounting hole, and the second limiting post 12 is inserted into the second mounting hole, thereby allowing the mounting body 2 to be detachably mounted on the base 5. In this application, both the first limiting post 11 and the second limiting post 12 are cylindrical, so the cross-sections of the first and second mounting holes are also circular. Of course, the first limiting post 11 and the second limiting post 12 can also be other shapes. Furthermore, in this application, the first and second mounting holes extend a predetermined depth from the surface opposite to the second surface 202 towards the second surface 202.

[0032] In some embodiments of this application, please refer to Figure 1-4 The mounting base 2 is also provided with a preset number of notches 25, the notches 25 are connected to the first wire-locking groove 24, and the notches 25 are formed from the second surface 202 of the mounting base 2; the wire 3 is installed in the first wire-locking groove 24, and at least a portion of the wire 3 extends out from the notch 25.

[0033] In practical use, a first magnet 9 and a second magnet 10 are respectively arranged on both sides of the sensor. For example, in this application, the first magnet 9 is close to the first circuit board 4, and the second magnet 10 is close to the second circuit board 13. The first magnet 9 and the second magnet 10 are used to be sensed by the sensor (the first magnet 9 and the second magnet 10 are embedded in a conventional mounting structure. When the magnetic flux changes, the input value of the sensor (Hall sensor) (the position of the magnet changes) changes, and the output value of the sensor also changes).

[0034] Please refer to Figure 4 This application also provides one circuit diagram of the first circuit board 4 and the second circuit board 10, which is a signal processing circuit based on the MLX90421 chip. This circuit, centered on the MLX90421 core chip (U1), constructs a complete front-end signal conditioning and acquisition system. The core of the circuit is the microchip MLX90421 (identified in the center of the diagram), a high-precision integrated signal conditioner that typically includes a programmable gain amplifier, an analog-to-digital converter, and a digital interface for amplifying, filtering, and digitizing the input analog signal.

[0035] To ensure stable chip operation, the circuit design incorporates a multi-level power supply filtering and decoupling structure:

[0036] Primary filter: The chip's first power input pin VDD1 ( Figure 4 Pin 3) has a storage capacitor C11 and a high-frequency decoupling capacitor C12 connected in parallel near its end. C11 (typically 1-10μF) is used to stabilize the power supply voltage and suppress low-frequency fluctuations; C12 (typically 100nF) is used to filter out high-frequency noise on the power line. The chip's second power input pin VDD2 ( Figure 4 The capacitors C21 and C22 are connected in parallel near the middle pin 11, and R21 is connected in series at the front end with C24 and C25 to achieve independent filtering of the two power domains.

[0037] Secondary filtering: In the analog power domain, capacitors C13 and C14 are further provided to form an independent local power filtering network, providing a clean operating voltage for sensitive analog circuits inside the chip (such as reference voltage sources and amplifiers).

[0038] Digital domain isolation: The chip's digital power supply pins are also connected to a dedicated decoupling capacitor C15 to achieve noise isolation between the analog and digital power domains, preventing digital switching noise from interfering with the accuracy of the analog signal.

[0039] The circuit supports multiple differential or single-ended analog signal inputs, specifically as follows:

[0040] Input interface: Signals are introduced through the chip's X1 pins (pins 4, 13, 14) and X2 pins (pins 5, 7, 12).

[0041] Input protection and regulation: Each input signal channel is connected in series with current-limiting resistors R11, R12, R21, and R22 (typical resistance values ​​range from 100Ω to 1kΩ) to limit the input current and prevent overvoltage surges from damaging the core chip. Additionally, some channels are equipped with capacitors C21, C22, and C23 to ground after the resistors (as shown in the figure), forming a low-pass filter network with the front-end resistors to effectively suppress high-frequency interference and aliasing noise.

[0042] Signal output: The processed signal is output to external devices through the chip's OUT1 pin (pin 15) and OUT2 pin (pin 6), without the need for an additional output resistor.

[0043] Collaborative Chip: The circuit diagram also includes another MLX90421 chip, which is connected to the MLX90421 via an internal bus (such as SPI or I2C) to form a master-slave signal processing architecture. This allows for expansion of the number of input channels or the implementation of more complex processing functions. All ground terminals in the circuit (such as pins 2 and 16 of VSS1, and pins 8 and 10 of VSS2) are connected to a common ground reference point. All analog and digital grounds are ultimately connected to this single point to form a complete reference potential, thus avoiding ground loop interference.

[0044] This circuit features a compact layout and, through multi-layer filtering, input protection, and a reasonable grounding design, significantly improves the anti-interference capability and measurement accuracy of signal acquisition. It is particularly suitable for high-reliability applications in harsh electromagnetic environments such as automotive sensors.

[0045] This application integrates discrete components such as circuit boards and cables into a unified mounting base through a highly modular design. The base features precisely designed mounting slots and wire-holding slots, enabling accurate positioning and orderly layout of components. This eliminates the complexity of traditional split structures, significantly improving structural compactness, making it particularly suitable for space-constrained installation environments. This application employs a positioning-guided design (such as the interaction of limiting posts and mounting holes) and physical constraint paths (such as pre-set wire grooves), simplifying the complex wiring and alignment process into a standardized "placement-fixing" procedure. This greatly reduces assembly difficulty and reliance on skilled workers, improving production efficiency and product consistency, laying the foundation for automated production. This application effectively improves the shock resistance and durability of connection points in vibration environments through methods such as pressure plate wire fixing and wire groove constraints. Electrically, optimized circuit design (such as multi-stage filtering) ensures the signal processing accuracy of the core chip in complex electromagnetic environments, thereby guaranteeing the long-term operational stability of the sensor as a whole. The modular and detachable design of this application makes partial repair and replacement possible, reducing later maintenance costs and difficulties. At the same time, the simplification of the structure reduces the types and quantities of materials, the optimization of the assembly process saves time, and the overall cost of the entire life cycle from manufacturing to maintenance is effectively controlled.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An integrated sensor, characterized in that, include: Mounting base; A first circuit board and a second circuit board are detachably mounted on the mounting base. The cable and the pressure plate are provided. The cable is installed on the mounting base, the pressure plate is pressed onto the cable, and the pressure plate and the mounting base are connected together by a predetermined number of bolts / screws, so that the cable is fixed between the pressure plate and the mounting base. A predetermined number of sensor cables are provided, which are electrically connected to the first circuit board / second circuit board and are mounted on the mounting base.

2. The integrated sensor according to claim 1, characterized in that, The mounting base is provided with a first mounting groove and a second mounting groove. The mounting base has a first surface, and the first mounting groove is recessed from the first surface to a predetermined depth. The second mounting groove is disposed on the surface opposite to the first surface and is recessed from that surface to a predetermined depth. The first circuit board is mounted in the first mounting groove, and the second circuit board is mounted in the second mounting groove. The first circuit board and the mounting base are detachably connected together by screws / bolts.

3. The integrated sensor according to claim 1, characterized in that, The mounting base is provided with a preset number of first wire-locking grooves. The mounting base has a second surface. The first wire-locking grooves are recessed from the second surface to a preset depth and are adapted to the wire. The wire is installed in the first wire-locking groove and is pressed by the pressure plate, thereby fixing the wire to the mounting base.

4. The integrated sensor according to claim 2, characterized in that, The mounting base is also provided with a second wire-holding groove, which is formed by recessing a predetermined depth from the first surface of the mounting base and is connected to the first mounting groove. The sensor cable is electrically connected to the first circuit board on one hand, and at least a portion of the sensor cable is inserted into the second wire-holding groove on the other hand. At least a portion of the sensor cable passes through a take-up tube, thereby constraining the sensor cable.

5. The integrated sensor according to claim 1, characterized in that, It also includes a base, a first limiting post, and a second limiting post, both of which are mounted on the base. The mounting body is provided with a first mounting hole adapted to the first limiting post and a second mounting hole adapted to the second limiting post. The first limiting post is inserted into the first mounting hole, and the second limiting post is inserted into the second mounting hole, thereby enabling the mounting body to be detachably mounted on the base.

6. The integrated sensor according to claim 3, characterized in that, The mounting base is also provided with a preset number of notches, which communicate with the first wire-locking groove, and the notches are formed from a defect on the second surface of the mounting base; the wire is installed in the first wire-locking groove, and at least a portion of the wire extends out from the notch.

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