Conditioning tooling and conditioning line for sensors

Abstract

A conditioning tool for sensors includes a feeding tray having a plurality of mounting positions corresponding to receiving a plurality of sensors, at least one circuit board fixed on the feeding tray, a plurality of upward electrical contact portions arranged on the circuit board, and a quick connector for plugging with electrical connectors of the plurality of sensors, which is electrically connected to the plurality of electrical contact portions through the circuit board. Preferably, two circuit boards are arranged side by side, and the feeding tray has two groups of mounting positions corresponding to the two circuit boards, each group of mounting positions including a plurality of mounting positions arranged in front and back. The conditioning tool can reduce the maintenance frequency and difficulty of the conditioning tool and improve the maintenance efficiency.

Description

Technical Field

[0001] This application relates to the field of conditioning equipment technology, specifically to a conditioning tooling and conditioning production line for sensors. Background Technology

[0002] When conditioning sensors such as pressure sensors, it is often necessary to perform conditioning at high or low temperatures. For more efficient conditioning, sensor products are typically loaded in batches onto a feeding tray. Then, multi-stage, corresponding elastic pins, moving downwards with a lifting plate, connect to the pins on the sensor's terminals to obtain the sensor signal before conditioning. The lifting plate's drive mechanism is usually fixed to the top wall of a high-temperature or low-temperature tunnel furnace. Due to differences in the feeding line and sensor positioning accuracy, it is often difficult to perfectly align the pins on the terminals of multiple sensors with all sets of elastic pins. This makes it easy for the pins of several misaligned sensors to be damaged during connection, or to experience poor contact and no signal transmission.

[0003] However, maintenance requires opening the sealed door of the tunnel furnace before it can be carried out. After maintenance, the high-temperature tunnel furnace needs a certain amount of preheating time to restart, while the low-temperature tunnel furnace not only needs preheating to remove the condensate from the air during shutdown (usually about 6 hours), but also needs to wait for the furnace to cool down. Therefore, maintenance is quite inconvenient.

[0004] The information disclosed in the background section of this utility model is only used to enhance the understanding of the general background of this utility model and should not be regarded as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application aims to provide a conditioning fixture for sensors, thereby reducing the frequency and difficulty of maintenance and improving maintenance efficiency.

[0006] This application provides a conditioning fixture for sensors, comprising: The feeding tray has multiple mounting positions corresponding to receiving multiple sensors; At least one circuit board fixed on the feeding tray; Multiple upward-facing electrical contacts are disposed on the circuit board; And quick connectors for plugging into the electrical connectors of the plurality of said sensors, which are electrically connected to the plurality of said electrical contacts via the circuit board.

[0007] Preferably, the device includes two circuit boards arranged on the left and right sides respectively; the feeding tray has correspondingly two sets of mounting positions arranged on the left and right sides, each set of mounting positions including a plurality of mounting positions arranged at intervals.

[0008] Preferably, the circuit board is located on the left and right outer sides of a corresponding set of mounting positions.

[0009] Preferably, the circuit board is horizontally and detachably fixed to the feeding tray.

[0010] Preferably, the feeding tray includes a tray body and a base fixed on the tray body, and the mounting positions are all disposed on the base body.

[0011] Preferably, the sensor is a pressure sensor, and the base is provided with a pressure delivery interface that is connected to the pressure interface of the pressure sensor to deliver a calibration pressure to the pressure sensor.

[0012] Preferably, the conditioning fixture further includes at least one temperature sensor for measuring the temperature of the mounting position, the temperature sensor being electrically connected to several electrical contacts therein via the circuit board.

[0013] Preferably, the device includes a plurality of temperature sensors corresponding to each of the circuit boards. The plurality of temperature sensors corresponding to each of the circuit boards are arranged at intervals on the base and are used to measure the temperature of one or more specific mounting positions.

[0014] Preferably, the plurality of electrical contacts are centrally arranged in one or more specific areas of the circuit board.

[0015] This application also claims a conditioning production line for sensors, comprising: The aforementioned processing tools; At least one tunnel furnace; A circulating conveying device is used to drive multiple of the conditioning fixtures to circulate through the tunnel furnace; A lifting drive mechanism fixed to the shell of the tunnel furnace; It also includes multiple flexible terminals that can make downward electrical contact with the conditioning fixture under the drive of the lifting drive mechanism to transmit sensor signals to the conditioning device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a conditioning fixture for a sensor according to a preferred embodiment.

[0017] Figure 2 This is a top view schematic diagram of a conditioning fixture for a sensor according to a preferred embodiment.

[0018] Figure 3This is a three-dimensional schematic diagram of a circuit board according to a preferred embodiment. Detailed Implementation

[0019] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings. The following embodiments are exemplary and are only used to explain this application, and should not be construed as limiting this application. In the following description, the same reference numerals are used to denote the same or equivalent elements, and repeated descriptions are omitted.

[0020] In the description of this application, it should be understood that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the prepositions "first," "second," and "third," etc., are only used for the purpose of distinguishing the modified objects, and should not be construed as indicating or implying relative importance.

[0021] Furthermore, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] It should also be further understood that the term "and / or" as used in this application specification and the corresponding claims refers to any combination of one or more of the listed items and all possible combinations.

[0023] like Figures 1 to 3 As shown, in a preferred embodiment of this utility model, the conditioning fixture 100 for sensors includes a feeding tray 1, which can be arranged horizontally and may have multiple mounting positions. These mounting positions can be divided into two groups in left and right columns, and each group may include six mounting positions spaced apart in the front-back direction. Each mounting position can be used to receive a sensor 01 to be conditioned, which may be a groove provided on the feeding tray.

[0024] The preparation fixture 100 also includes two circuit boards 2 arranged on the left and right sides of the two sets of mounting positions. The circuit boards 2 can be arranged in the horizontal direction and are preferably detachably fixed to a front-to-back extending mounting groove 1a provided on the tray 1. The length direction can be arranged in the front-to-back direction.

[0025] The conditioning fixture 100 also includes a set of six quick connectors 3a and a set of six quick connectors 3b. The six quick connectors 3a connect to the electrical connectors 011 of six sensors 01 in one set of mounting positions, and the six quick connectors 3b connect to the electrical connectors 011 of six sensors 01 in another set of mounting positions. Each quick connector is electrically connected to a corresponding circuit board via a wiring harness 31. The sensors 01 to be conditioned can be individually placed in their corresponding mounting positions manually or automatically, and individually connected to their corresponding quick connectors 3a and 3b manually or automatically. Specifically, quick connectors 3a and 3b may have several pins, which are electrically connected to one end of multiple connecting wires of the wire harness in a corresponding manner. The other ends of the multiple connecting wires of the wire harness can pass downward through a wire hole 2a provided on the circuit board and extend downward to the bottom of the circuit board 2, and then be vertically inserted and soldered into a set of multiple solder holes 22 respectively. This can form a U-shaped connection part with a U-shaped bend and an upward arch. When quick connectors 3a and 3b are frequently connected to the electrical connection part 011 of sensor 01, the U-shaped connection part can give the connecting wire a certain elasticity and a high pull-out force to avoid solder joint failure.

[0026] The sensor 01 can be additionally pressed and fixed to the mounting position of the feeding tray 1 by the pressure plate 5 facing downwards. Each group or all sensors 01 can be pressed downwards by the same pressure plate 5.

[0027] The preparation fixture 100 also includes multiple upward-facing electrical contacts 21 disposed on the circuit board 2. Quick connectors 3a and 3b are electrically connected to the multiple electrical contacts 21 via the circuit board 2 on the left and right sides respectively.

[0028] In a sensor conditioning production line, the aforementioned conditioning fixture 100 can be mounted on a circulating conveyor (not shown, such as a circulating conveyor chain) that drives multiple conditioning fixtures 100 to circulate through a tunnel furnace (not shown). A lifting drive mechanism (such as a lifting cylinder) can be fixed to the shell of the tunnel furnace to drive multiple elastic terminals (not shown) to make downward electrical contact with the electrical contact portion 21 of the conditioning fixture 100. These elastic terminals can be connected to a conditioning device (not shown) to output sensor signals to the conditioning device. After conditioning, the conditioning device transmits and stores the conditioning parameters in the control unit of the sensor 01. The pressure plate 5 can also be driven by the lifting drive mechanism along with the elastic terminals, or driven independently by another lifting drive mechanism to achieve downward pressure, or the sensor 01 can be manually pressed down and locked.

[0029] The feeding tray 1 includes a tray body 11 and a base 12 fixed to the upper end of the tray body 11. The aforementioned mounting positions are all located on the base 12. The aforementioned sensor 01 can be a pressure sensor. Correspondingly, the base 4 can be provided with a pressure interface that connects to the pressure interface of the pressure sensor to deliver a calibration pressure to the pressure sensor. The calibration pressure can be provided by a pressure source.

[0030] Preferably, the conditioning fixture 100 may further include at least one temperature sensor (unmarked) for measuring the temperature of the mounting position, to measure the ambient temperature of the pressure sensor during measurement. The temperature sensor is connected via a wiring harness to an electrical connector 23 disposed on the circuit board 2. The electrical connector 23 is electrically connected via the circuit board to several electrical contacts 21 therein, thereby transmitting the temperature signal of the pressure sensor to the conditioning device for temperature calibration, reducing pressure measurement errors caused by temperature changes. Preferably, the conditioning fixture 100 may include a total of three temperature sensors, which may be selectively arranged in the recess of one mounting position to obtain the ambient temperature of the corresponding pressure sensor, or, more preferably, each temperature sensor is correspondingly disposed between two mounting positions to obtain the ambient temperature of the corresponding two pressure sensors.

[0031] In the above embodiments, these multiple electrical contacts 21 are concentrated in one or more specific areas of the circuit board 2. For example, these electrical contacts 21 can be arranged at the four corners of the rectangular disk 11, so that interference is less likely when the elastic terminal makes electrical contact with the electrical contacts 21. The tunnel furnace described above can be a high-temperature furnace or a low-temperature furnace. The terms "high temperature" and "low temperature" are relative to the range of the sensor.

[0032] The scope of this disclosure is not limited by the detailed description, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be included in this disclosure.

Claims

1. A conditioning fixture (100) for sensors, characterized in that, include: A feeding tray (1) has multiple mounting positions corresponding to receiving multiple sensors (01); At least one circuit board (2) fixed to the feeding tray (1); Multiple upward-facing electrical contacts (21) are disposed on the circuit board (2); And quick connectors for plugging into electrical connectors (011) of the plurality of said sensors (01), which are correspondingly electrically connected to the plurality of said electrical contacts (21) via the circuit board (2).

2. The conditioning fixture (100) for a sensor according to claim 1, characterized in that, The circuit board (2) is arranged on the left and right sides respectively; the feeding tray (1) has two sets of mounting positions arranged on the left and right sides respectively, each set of mounting positions including a plurality of mounting positions arranged at intervals.

3. The conditioning fixture (100) for a sensor according to claim 2, characterized in that, The circuit board (2) is located on the left and right sides of a corresponding set of mounting positions.

4. The conditioning fixture (100) for a sensor according to claim 1, characterized in that, The circuit board (2) is horizontally and detachably fixed to the feeding tray (1).

5. The conditioning fixture (100) for a sensor according to claim 1, characterized in that, The feeding tray (1) includes a tray body (11) and a base (12) fixed on the tray body (11), and the mounting positions are all located on the base (12).

6. The conditioning fixture (100) for a sensor according to claim 5, characterized in that, The sensor is a pressure sensor, and the base (12) is provided with a pressure interface that is connected to the pressure interface of the pressure sensor to deliver a calibrated pressure to the pressure sensor.

7. The conditioning fixture (100) for a sensor according to any one of claims 5 to 6, characterized in that, It also includes at least one temperature sensor for measuring the temperature of the mounting location, the temperature sensor being electrically connected via the circuit board (2) to several of the electrical contacts (21).

8. The conditioning fixture (100) for a sensor according to claim 7, characterized in that, It includes multiple temperature sensors corresponding to each of the circuit boards (2), which are arranged at intervals on the base (12) and are used to measure the temperature of one or more specific mounting positions.

9. The conditioning fixture (100) for a sensor according to any one of claims 1 to 6, characterized in that, Multiple electrical contacts (21) are centrally arranged in one or more specific areas of the circuit board (2).

10. A conditioning production line for sensors, characterized in that, include: Multiple conditioning fixtures (100) for sensors according to any one of claims 1 to 9; At least one tunnel furnace; A circulating conveying device is used to drive multiple of the conditioning fixtures (100) to circulate through the tunnel furnace; A lifting drive mechanism fixed to the shell of the tunnel furnace; And multiple flexible terminals, which can make downward electrical contact with the conditioning fixture (100) under the drive of the lifting drive mechanism to transmit sensor signals to the conditioning device.

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