Plug-in batch temperature compensation device for tilt angle sensor

Abstract

The utility model 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 utility model has the advantages that the installation is convenient and reliable, the level is stable, and the wiring efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor manufacturing and testing, and in particular to an insertion-type batch temperature compensation device for tilt sensors. Background Technology

[0002] Tilt sensors are measuring devices used to measure the angle between an object and the horizontal plane. For example, when an aerial work platform lifts its telescopic boom, it is essential to ensure the stability of the vehicle chassis to guarantee the safety of the workers.

[0003] The core component of a tilt sensor is an accelerometer chip, which is susceptible to temperature fluctuations. To mitigate this effect, temperature compensation is performed on the accelerometer chip during the tilt sensor manufacturing process. Temperature-compensated tilt sensors exhibit more stable and reliable measurements over long-term use, giving them a stronger competitive edge in the market.

[0004] When performing zero-point temperature compensation for tilt sensors, the horizontal value of gravitational acceleration must be minimized. Therefore, the measurement axis of the accelerometer chip needs to be parallel to the horizontal plane to stabilize it at zero output. This ensures more accurate tilt sensor readings. Consequently, horizontally fixing the tilt sensors becomes a challenging problem. Currently, studs and screws are used to fix the tilt sensors, but this method is inefficient, taking approximately 2.5 hours to install 300 sensors on average. Furthermore, the levelness of the fixation is affected by the degree of manual tightening. Utility Model Content

[0005] To address the technical problems in the background art, this utility model provides an insertable batch temperature compensation device for tilt sensors. The device includes a mounting bracket for inserting and clamping multiple tilt sensor PCBs and a three-stage power supply line. The mounting bracket includes a mounting base fixedly mounted on a horizontal mounting surface and multiple vertical plates that are parallel to each other and equally spaced and vertically mounted on the mounting base. Each of the vertical plates has the same structure, including a drawer insertion part and a hollow part respectively set on the main body plate.

[0006] Furthermore, the bottom of the main body plate is fixedly connected or integrally formed on the upper surface of the mounting base.

[0007] Furthermore, the bottom of the main plate is detachably mounted on the upper surface of the mounting base using a sliding groove and a slider.

[0008] Furthermore, the drawer insertion part and the hollow part are provided in multiples, and are arranged alternately in the vertical direction on the main body plate.

[0009] Furthermore, the drawer insertion part includes an upper structural member and a lower structural member for forming grooves for inserting and clamping multiple tilt sensor PCB boards, and an elastic clamping unit disposed on the upper structural member. Each upper structural member has the same installation height on the main body plate, and each lower structural member 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 2.0-2.5mm.

[0011] Furthermore, both the upper structural component and the lower structural component are provided with screw holes and positioning pin holes, and the upper surface of the upper structural component is also provided with mounting holes for installing the elastic clamping unit.

[0012] Furthermore, the elastic clamping unit is a spring screw, the head of which 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 head portion of the spring screw is hemispherical.

[0014] Furthermore, the three-level power supply line includes a primary power line as the main power line, a secondary power line as a branch power line, and a tertiary power line as the power supply line for the tilt sensor PCB board. The primary power line is connected to an external power source and is located at the mounting base. The secondary power line is connected to the primary power line and the tertiary power line respectively and is located at the vertical plate. The tertiary power line is located at the drawer insertion part.

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

[0016] This invention provides an insert-type batch temperature compensation device for tilt sensors, presenting a new installation method for tilt sensor PCBs. This significantly reduces the time required for tilt sensor installation, while making the sensors more stable during temperature compensation and facilitating production flow. According to actual test statistics, installing 300 sensors only takes half an hour, increasing efficiency by 80%. The operation is less complex, improving production efficiency while reducing the requirements for production personnel. In addition, it can also improve the levelness of installation and enhance temperature compensation accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the vertical plate structure;

[0019] Figure 3 This is a structural diagram of the drawer's insertion part;

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

[0021] Explanation of the labels in the diagram

[0022] 1. Mounting bracket; 2. Tilt sensor PCB board; 11. Mounting base; 12. Vertical plate; 121. Main board; 1211. Drawer insertion part; 1212. Cutout part; 12111. Upper structural component; 12112. Lower structural component; 12113. Groove; 3. Screw hole; 4. Mounting hole; 5. Locating pin hole. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection 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 in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", 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 that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

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

[0027] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example

[0030] like Figure 1 As shown, this utility model provides an insertion-type batch temperature compensation device for tilt sensors, which is used to achieve horizontal mounting and clamping of multiple PCB boards during the batch temperature compensation process of tilt sensor products. The device includes a mounting bracket 1 and multiple tilt sensor PCB boards 2 inserted and clamped on the mounting bracket 1. The mounting bracket 1 includes a horizontally arranged mounting base 11 and vertical plates 12 that are parallel to each other and equally spaced and vertically mounted on the mounting base 11. Each vertical plate 12 has the same structure and includes a main plate 121 connected to the bottom of the mounting base 11. The main plate 121 includes multiple drawer insertion parts 1211 for inserting one side of the tilt sensor PCB board 2 and a hollow part 1212 disposed between two adjacent drawer insertion parts 1211.

[0031] The bottom of the main body plate 121 is fixedly connected or integrally formed on the upper surface of the mounting base 11. Alternatively, the main body plate 121 can be detachably installed on the upper surface of the mounting base 11 by means of a sliding groove / slider on the bottom surface of the main body plate 121 in conjunction with the sliding groove / slider on the upper surface of the mounting base 11 through a sliding groove insertion method.

[0032] In addition, in order to accommodate tilt sensor PCBs 2 of different models and sizes, the spacing between two adjacent vertical plates 12 can also be adjusted according to the size of the tilt sensor PCB 2, so that the device has greater applicability and flexibility.

[0033] like Figure 2 As shown, multiple drawer insertion parts 1211 and hollow parts 1212 are alternately arranged on the main body plate 121. The purpose of setting the hollow parts 1212 is to reduce the weight of the entire device, reduce manufacturing costs, and effectively reduce weight without reducing strength.

[0034] like Figure 3As shown, the drawer insertion part 1211 is the core structural design of this batch temperature compensation device. Each drawer insertion part 1211 mainly includes an upper structural component 12111, a lower structural component 12112, and an elastic clamping unit disposed on the upper structural component 12111. Generally, there are two upper structural components 12111, which are respectively fixed to both sides of the main body plate 121 at the first height position by screws. Similarly, there are generally two lower structural components 12112, which are respectively fixed to both sides of the main body plate 121 at the second height position by screws. The upper structural member 12111 and the lower structural member 12112 form a groove 12113 for inserting the process edge of the tilt sensor PCB board 2. The upper structural member 12111 is also provided with multiple elastic clamping units along the extension direction of the groove 12113 on the lower surface of the upper structural member 12111. In this invention, the width of the groove 12113 is slightly wider than the thickness of the tilt sensor PCB board 2, generally set to 2.0-2.5mm, so as to be able to accommodate tilt sensor PCB boards 2 of different thicknesses.

[0035] In addition, to ensure that both the upper structural component 12111 and the lower structural component 12112 can be horizontally mounted on the main body plate 121 at a set height using screws, multiple screw holes 3 and multiple locating pin holes 5 are provided on the outer surfaces of both the upper structural component 12111 and the lower structural component 12112 (in this example, there are three screw holes 3 and two locating pin holes 5). Figure 2 (The screw holes 3 and locating pin holes 5 of the lower structural component 12112 are not shown). During installation, the locating pins are first used to position the square structural component 12111 and the lower structural component 12112 through the locating pin holes 5, and then the screws are used to fix them in place with the screw holes 3.

[0036] It is easy to imagine that the upper structural component 12111 and the lower structural component 12112 can also be integrally formed with the main body plate 121, and the drawer insertion part 1211 can also be made of a whole square piece with grooved treatment. Doing so can reduce the installation difficulty, but it will also increase the manufacturing cost.

[0037] In one embodiment, 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 spring screws, and multiple mounting holes 4 with internal threads are equally spaced on the upper surface of the upper structural component 12111. Figure 3(As shown in the figure, 5) The external thread of the spring screw is tightened to fit the internal thread of the mounting hole 4, so that the head 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 head of the spring screw has a certain amount of movement, which allows each groove 12113 to adapt to PCB boards of different thicknesses.

[0038] When the tilt sensor PCB board 2 is inserted along the groove 12113, the head of the spring screw is pressed into the tail, thereby compressing the spring inside the spring screw. The upper surface of the tilt sensor PCB board 2 is subjected to the reaction force of the head, which presses the lower surface of the tilt sensor PCB board 2 into horizontal contact with the upper surface of the lower structural component 12112. This increases the friction and makes the tilt sensor PCB board 2 more stable.

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

[0040] It is easy to imagine that in this utility model, the head of the spring screw can be a hemispherical shape or a sloping shape. Any shape or 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 this utility model.

[0041] Existing temperature compensation fixtures typically require multiple power cables to be drawn from an external power source and connected to each tilt sensor PCB 2 when supplying power to the tilt sensor PCB 2. However, due to the large number of tilt sensor PCBs 2 requiring temperature compensation and the large number of power cables, incorrect or missing connections are prone to occur, and the process is also very time-consuming and labor-intensive. To address this issue, this invention adapts and improves the power supply method. Based on the connection structure between the mounting base 11 and the vertical plate 12, this invention employs a three-stage power supply method to power each tilt sensor PCB 2, as detailed below:

[0042] like Figure 4As shown, this utility model divides the power supply line into a primary power line as the main power line, a secondary power line as branch power lines, and a tertiary power line as the power supply line for the tilt sensor PCB board 2. The primary power line is laid 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 the primary power line is connected to an external power supply, and the other end is connected to each secondary power line respectively, serving as the main trunk to supply power to each secondary power line. The primary power line has the largest cross-sectional area and can bear the largest current load, ensuring the reliability and current carrying capacity of the power supply. Each secondary power line is laid along the height direction on the vertical plate 12. The power supply cable grooves on the side or the side of the vertical plate 12 serve as branches to supply power to each of the three-level power lines. Their cross-sectional area is in the middle to ensure the current carrying capacity of the branch. Each of the three-level power lines is laid out on the cuboid structural component 12111 along the depth direction. Since it only supplies power to a single tilt sensor PCB board 2, its cross-sectional area is the smallest and the wire is the thinnest and softest, making it easier and more flexible for the operator to connect the wires. It can be directly connected to the power supply end of each tilt sensor PCB board 2, or it can be connected to a power supply terminal or socket. When supplying power, the power supply end of the tilt sensor PCB board 2 can be plugged into the power supply terminal or socket to achieve power supply.

[0043] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An insertion-type batch temperature compensation device for tilt sensors, characterized in that, The device includes a mounting bracket (1) for inserting and clamping multiple tilt sensor PCB boards (2) and a three-level power supply line. The mounting bracket (1) includes a mounting base (11) fixedly mounted on a horizontal mounting surface and multiple vertical plates (12) that are parallel to each other and equally spaced vertically mounted on the mounting base (11). Each of the vertical plates (12) has the same structure and includes a drawer insertion part (1211) and a cutout part (1212) respectively provided on the main body plate (121).

2. The insertion-type batch temperature compensation device for an angle sensor according to claim 1, characterized in that, The bottom of the main plate (121) is fixedly connected or integrally formed on the upper surface of the mounting base (11).

3. The insertion-type batch temperature compensation device for an angle sensor according to claim 1, characterized in that, The bottom of the main plate (121) is detachably mounted on the upper surface of the mounting base (11) using a sliding groove and a slider.

4. The insertion-type batch temperature compensation device for an inclinometer according to claim 1, characterized in that, The drawer insertion part (1211) and the hollow part (1212) are provided in multiple ways, and are arranged alternately along the vertical direction on the main body plate (121).

5. The insertion-type batch temperature compensation device for an angle sensor according to claim 4, characterized in that, The drawer insertion part (1211) includes an upper structural member (12111) and a lower structural member (12112) for forming a groove (12113) for inserting and clamping multiple tilt sensor PCB boards (2), and an elastic clamping unit disposed on the upper structural member (12111). Each upper structural member (12111) has the same installation height on the main body plate (121), and each lower structural member (12112) has the same installation height on the main body plate (121) and is lower than the installation height of the upper structural member (12111).

6. The insertion-type batch temperature compensation device for an inclinometer 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), which is 2.0-2.5mm.

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

8. The insertion-type batch temperature compensation device for an inclinometer according to claim 7, characterized in that, The elastic clamping unit is a spring screw, the head 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 an inclinometer according to claim 8, characterized in that, The head portion of the spring screw is hemispherical.

10. The insertion-type batch temperature compensation device for an inclinometer according to claim 1, characterized in that, The three-level power supply line includes a primary power line as the main power line, a secondary power line as a branch power line, and a tertiary power line as the power supply line for the tilt sensor PCB board (2). The primary power line is connected to an external power source and is located at the mounting base (11). The secondary power line is connected to the primary power line and the tertiary power line respectively and is located at the vertical plate (12). The tertiary power line is located at the drawer insertion part (1211).

Images