Plug-in batch temperature compensation device for tilt angle sensor

Abstract

The invention relates to a plug-in type batch temperature compensation device for tilt angle sensors, which comprises a mounting bracket for inserting and clamping a plurality of tilt angle sensor PCBs (Printed Circuit Board) and a three-stage power supply circuit, the installation support comprises an installation base fixedly installed on the horizontal installation face and a plurality of vertical plates which are parallel to one another and vertically installed on the installation base at equal intervals, the vertical plates are the same in structure, and each vertical plate comprises a drawer inserting part and a hollowed-out part which are arranged on the main body plate. Compared with the prior art, the invention has the advantages of convenient and reliable installation, stable level, greatly improved wiring efficiency and the like.

Description

Technical Field

[0001] The invention relates to the field of sensor production, manufacturing and detection, and in particular to an insertion type batch temperature compensation device for an inclination sensor. Background Art

[0002] The inclination sensor is a measuring device used to measure the angle between an object and a horizontal plane. For example, when an aerial work vehicle lifts the telescopic arm, in order to ensure the personal safety of the operators, the vehicle chassis must be stable.

[0003] The core component of the inclinometer is the accelerometer chip, which is easily affected by temperature. In order to reduce this effect, the accelerometer chip is temperature compensated during the manufacturing process of the inclinometer. The temperature-compensated inclinometer product will have more stable measurement values ​​and more reliable data in long-term use, making it more competitive in the market.

[0004] When the inclinometer performs zero-point temperature compensation, the gravity acceleration value in the horizontal direction must be minimized, so the measuring axis of the acceleration chip needs to be parallel to the horizontal plane to stabilize it in a state of zero output. Only in this way can the compensation make the value of the inclinometer more accurate. Therefore, how to fix the inclinometer horizontally has become a more difficult problem. At present, the inclinometer is fixed by studs and screws, but this method is very inefficient. It takes about 2.5 hours to install 300 sensors on average. In addition, the horizontality of the fixation is also affected by the degree of manual tightening. Summary of the invention

[0005] In order to solve the technical problems in the background technology, the present invention provides an insertion-type batch temperature compensation device for inclination sensors, which includes a mounting bracket for inserting and clamping multiple inclination sensor PCB boards and a three-level power supply circuit. The mounting bracket includes a mounting base fixedly mounted on a horizontal mounting surface, and multiple vertical plates parallel to each other and vertically mounted on the mounting base at equal intervals. Each of the vertical plates has the same structure and includes a drawer plug-in portion and a hollow portion respectively arranged on the main body panel.

[0006] Furthermore, the bottom of the main body plate is arranged on the upper surface of the mounting base in a fixed connection or integrally formed manner.

[0007] Furthermore, the bottom of the main body plate is detachably arranged on the upper surface of the mounting base by means of a sliding groove and a sliding block.

[0008] Furthermore, the drawer plug-in portion and the hollow portion are provided in plurality, respectively, and are alternately arranged in sequence along the vertical direction on the main body panel.

[0009] Furthermore, the drawer plug-in portion includes an upper structural member and a lower structural member for forming grooves for inserting and clamping multiple inclination sensor PCB boards, and an elastic clamping unit arranged on the upper structural member, each of the upper structural members has the same installation height on the main body plate, and each of the lower structural members has the same installation height on the main body plate and is lower than the installation height of the upper structural member.

[0010] Furthermore, the width of the groove is greater than the thickness of the process edge of the tilt sensor PCB board, which is 2.0-2.5 mm.

[0011] Furthermore, screw holes and positioning pin holes are provided on the upper structural member and the lower structural member, and a mounting hole for mounting an elastic clamping unit is also provided on the upper surface of the upper structural member.

[0012] Furthermore, the elastic clamping unit is a spring screw, and the column head portion of the spring screw extends out of the lower surface of the upper structural member and does not contact the lower surface of the lower structural member.

[0013] Furthermore, the column head portion of the spring screw is semi-spherical.

[0014] Furthermore, the three-level power supply circuit includes a primary power line as a main power line, a secondary power line as a branch power line, and a tertiary power line as a power supply line for the inclination sensor PCB board. The primary power line is connected to an external power supply and is arranged at the mounting base. The secondary power line is respectively connected to the primary power line and the tertiary power line and is arranged at the vertical plate. The tertiary power line is arranged at the drawer plug-in portion.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The present invention provides an insertion-type batch temperature compensation device for an inclination sensor, provides a new installation method for a PCB of the inclination sensor, greatly reduces the time required for installing the inclination sensor, and at the same time makes the sensor more stable in temperature compensation and more convenient for production circulation. According to actual test statistics, it only takes half an hour to install 300 sensors, and the efficiency is improved by 80%. The operation complexity is low, and while improving the production efficiency, the requirements for production personnel are reduced. In addition, the horizontality of the installation can be improved, and the temperature compensation accuracy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a structural diagram of the vertical plate;

[0019] Figure 3 It is a structural schematic diagram of the drawer plug-in part;

[0020] Figure 4 This is a schematic diagram of the layout structure of the three-level power line.

[0021] Description of the symbols in the figure

[0022] 1. Mounting bracket, 2. Tilt sensor PCB board, 11. Mounting base, 12. Vertical plate, 121. Main plate, 1211. Drawer plug-in part, 1212. Hollow part, 12111. Upper structural part, 12112. Lower structural part, 12113. Groove, 3. Screw hole, 4. Mounting hole, 5. Positioning pin hole. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0024] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0025] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0027] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example

[0030] like Figure 1 As shown, the present invention provides an insertion-type batch temperature compensation device for an inclination sensor, which is used to realize the horizontal installation, clamping and fixing of multiple PCB boards during the batch temperature compensation process of the inclination sensor product. The device includes a mounting bracket 1 and multiple inclination sensor PCB boards 2 inserted and clamped on the mounting bracket 1. The mounting bracket 1 includes a horizontally arranged mounting base 11, vertical plates 12 vertically installed on the mounting base 11 in parallel with each other and at equal intervals. Each vertical plate 12 has the same structure and includes a main body plate 121 connected to the bottom and the mounting base 11. The main body plate 121 includes multiple drawer plug-in portions 1211 for plugging in the process edge of one side of the inclination sensor PCB board 2 and a hollow portion 1212 arranged between two adjacent drawer plug-in portions 1211.

[0031] The bottom of the main plate 121 is fixedly connected or integrally formed on the upper surface of the mounting base 11, and can also be detachably mounted on the upper surface of the mounting base 11 by means of a slide groove plug-in connection through the bottom slide groove / slider of the main plate 121 cooperating with the slider / slide groove on the upper surface of the mounting base 11.

[0032] In addition, in order to adapt to inclination sensor PCB boards 2 of different models and sizes, the distance between two adjacent vertical boards 12 can also be adjusted according to the size of the inclination sensor PCB board 2, so that the device has greater applicability and flexibility.

[0033] like Figure 2 As shown, a plurality of drawer plug-in portions 1211 and hollow portions 1212 are alternately arranged on the main body plate 121. The purpose of providing the hollow portions 1212 is to reduce the weight of the entire device, reduce the manufacturing cost, and effectively reduce the weight without reducing the strength.

[0034] like Figure 3As shown, the drawer plug-in part 1211 is the core structural design of the batch temperature compensation device. Each drawer plug-in part 1211 mainly includes an upper structural member 12111, a lower structural member 12112 and an elastic clamping unit arranged on the upper structural member 12111. The upper structural member 12111 is generally provided with two, which are respectively fixed to the two sides of the first height position of the main body plate 121 by screws, and the lower structural member 12112 is generally provided with two, which are respectively fixed to the two sides of the second height position of the main body plate 121 by screws, and the first height The position is higher than the second height position, and a groove 12113 for plugging in the process edge of the inclination sensor PCB board 2 is formed by the lower surface of the upper structural member 12111 and the upper surface of the lower structural member 12112, and a plurality of elastic clamping units are also provided along the extension direction of the groove 12113 at the lower surface of the upper structural member 12111. In the present invention, the width of the groove 12113 is slightly wider than the thickness of the inclination sensor PCB board 2, and is generally set to 2.0-2.5mm, so as to be able to cooperate with inclination sensor PCB boards 2 of different models and thicknesses.

[0035] In addition, in order to ensure that the upper structural member 12111 and the lower structural member 12112 can be horizontally installed on the main plate 121 at a set height by screws, a plurality of screw holes 3 and a plurality of positioning pin holes 5 are provided on the outer side surfaces of the upper structural member 12111 and the lower structural member 12112 (in this example, three screw holes 3 and two positioning pin holes 5 are provided, and Figure 2 The screw holes 3 and the positioning pin holes 5 of the lower structural member 12112 are not shown. During installation, the positioning pins are first used to position the square structural member 12111 and the lower structural member 12112 through the positioning pin holes 5, and then the screws are used to fix them with the screw holes 3.

[0036] It is easy to imagine that the upper structural member 12111 and the lower structural member 12112 can also be integrally formed with the main plate 121, and the drawer plug-in portion 1211 can also adopt a whole square piece and then be grooved. This can reduce the difficulty of installation, but it will also increase the production cost.

[0037] In one embodiment, in order to better clamp the process edge of the tilt sensor PCB board 2 on one side and ensure horizontality and operability, the elastic clamping unit can use a spring screw, and a plurality of mounting holes 4 with internal threads are evenly spaced on the upper surface of the upper structural member 12111 ( Figure 35 is shown in the figure), the external thread of the spring screw is tightened and installed with the internal thread of the mounting hole 4, so that the column head part of the spring screw extends out of the lower surface of the upper structural member 12111 but does not contact the upper surface of the lower structural member 12112. In this way, the column head part of the spring screw has a certain active stroke, which makes each groove 12113 also able to adapt to PCB boards of different thicknesses.

[0038] When the inclination sensor PCB board 2 is inserted along the groove 12113, the column head part of the spring screw is pressed toward the tail, thereby compressing the spring inside the spring screw. The upper surface of the inclination sensor PCB board 2 is subjected to the reaction force of the column head part, and the lower surface of the inclination sensor PCB board 2 is horizontally pressed and contacted with the upper surface of the lower structural member 12112, thereby increasing the friction force and making the inclination sensor PCB board 2 more stable.

[0039] In addition, after the inclination sensor PCB board 2 is fully inserted into the groove 12113, the column head part of the spring screw, under the action of the spring, presses the process edge of the inclination sensor PCB board 2 tightly against the upper surface of the lower structural member 12112. Since the upper surface of the lower structural member 12112 remains parallel to the horizontal plane, the horizontal installation of the inclination sensor PCB board 2 is also guaranteed.

[0040] It is easy to imagine that in the present invention, the column head part of the spring screw can be semi-spherical or sloped. Any shape structure that can be compressed inward to increase the reaction force when the tilt sensor PCB board 2 is inserted is within the protection scope of the present invention.

[0041] When the existing temperature compensation tooling is supplying power to the inclination sensor PCB board 2, it is generally necessary to pull out a lot of power lines from the external power supply end, and respectively connect them to each inclination sensor PCB board 2. However, since there are a large number of inclination sensor PCB boards 2 for temperature compensation, there are also a large number of power lines drawn out, which is prone to wrong connection and missed connection, and is also very time-consuming and labor-intensive. To solve this problem, the present invention has made an adaptive improvement to the power supply method. Based on the connection structure of the mounting base 11 and the riser 12, the present invention adopts a three-level power supply method to realize the power supply to each inclination sensor PCB board 2, which is specifically described as follows:

[0042] like Figure 4As shown, the present invention divides the power supply line into a primary power line as a main power line, a secondary power line as a branch power line, and a tertiary power line as a power line for the tilt sensor PCB board 2. The primary power line is arranged along the width direction on the side surface of the mounting base 11 or in the main power line groove on the side of the mounting base 11, one end of which is connected to the external power supply, and the other end is respectively connected to each secondary power line, as a trunk to realize power supply to each secondary power line, and the primary power line has the largest cross-sectional area and can carry the largest current load, thereby ensuring the reliability and flow capacity of power supply; each secondary power line is arranged along the height direction on the vertical plate 12 The branch power line groove on the side or the side of the vertical plate 12 is used as a branch to power each three-level power line, and its cross-sectional area is centered to ensure the current carrying capacity of the branch; each three-level power line is arranged on the rectangular structure 12111 along the depth direction. Since it only supplies power to a single inclination sensor PCB board 2, its cross-sectional area is the smallest, and the line is the thinnest and softest, making it easier and more flexible for the operator to connect wires. It can be directly connected to the power supply end of each inclination sensor PCB board 2, or it can be connected to a power supply terminal or a socket. When supplying power, the power supply end of the inclination sensor PCB board 2 can be plugged into the power supply terminal or the socket to realize power supply.

[0043] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An insertion type batch temperature compensation device for an inclination sensor, characterized in that: The device comprises a mounting bracket (1) for inserting and clamping a plurality of tilt sensor PCB boards (2) and a three-level power supply circuit, wherein the mounting bracket (1) comprises a mounting base (11) fixedly mounted on a horizontal mounting surface, and a plurality of vertical plates (12) vertically mounted on the mounting base (11) in parallel with each other and at equal intervals, wherein each of the vertical plates (12) has the same structure and comprises a drawer plug-in portion (1211) and a hollow portion (1212) respectively arranged on a main body plate (121).

2. The insertion type batch temperature compensation device of the inclination sensor according to claim 1, characterized in that: The bottom of the main body plate (121) is arranged on the upper surface of the mounting base (11) in a fixed connection or integrally formed manner.

3. The insertion type batch temperature compensation device of the inclination sensor according to claim 1, characterized in that: The bottom of the main body plate (121) is detachably arranged on the upper surface of the mounting base (11) by means of a sliding groove and a sliding block.

4. The insertion type batch temperature compensation device of the inclination sensor according to claim 1, characterized in that: The drawer plug-in portion (1211) and the hollow portion (1212) are respectively provided in plurality and are alternately arranged in sequence along the vertical direction on the main body plate (121).

5. The insertion type batch temperature compensation device of the inclination sensor according to claim 4, characterized in that: The drawer plug-in portion (1211) comprises an upper structural member (12111) and a lower structural member (12112) for forming a groove (12113) for inserting and clamping a plurality of tilt sensor PCB boards (2), and an elastic clamping unit arranged on the upper structural member (12111), each of the upper structural members (12111) having the same installation height on the main body plate (121), and each of the lower structural members (12112) having the same installation height on the main body plate (121) and being lower than the installation height of the upper structural member (12111).

6. The insertion type batch temperature compensation device for the inclination sensor according to claim 5, characterized in that: The width of the groove (12113) is greater than the process edge thickness of the tilt sensor PCB board (2), and is 2.0-2.5 mm.

7. The insertion type batch temperature compensation device for the inclination sensor according to claim 5, characterized in that: The upper structural member (12111) and the lower structural member (12112) are both provided with screw holes (3) and positioning pin holes (5), and the upper surface of the upper structural member (12111) is also provided with a mounting hole (4) for mounting an elastic clamping unit.

8. The insertion type batch temperature compensation device for the inclination sensor according to claim 7, characterized in that: The elastic clamping unit is a spring screw, the column head portion of which extends out of the lower surface of the upper structural member (12111) and does not contact the lower surface of the lower structural member (12112).

9. The insertion type batch temperature compensation device for the inclination sensor according to claim 8, characterized in that: The column head part of the spring screw is in a semi-spherical shape.

10. The insertion type batch temperature compensation device for the inclination sensor according to claim 1, characterized in that: The three-level power supply circuit comprises a primary power line as a main power line, a secondary power line as a branch power line, and a tertiary power line as a power line for supplying power to the tilt sensor PCB board (2); the primary power line is connected to an external power source and is arranged at the mounting base (11); the secondary power line is respectively connected to the primary power line and the tertiary power line and is arranged at the vertical board (12); and the tertiary power line is arranged at the drawer plug-in portion (1211).

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