A coil induction angle sensor

Abstract

The utility model relates to a coil induction angle sensor, which belongs to the field of sensor technology, and includes an annular plastic shell, wherein an annular coil is arranged inside the annular plastic shell, and a wire is fixedly connected to the outside of the annular coil, and a packaging component is arranged between the wire and the annular plastic shell. The coil induction angle sensor has an annular cavity arranged inside the annular plastic shell, which is convenient for quickly loading the annular coil and facilitating subsequent glue filling. The first threading hole and the second threading hole are provided to facilitate the wire to pass through the inside of the bottom plate, and the wire is arranged by using the wire groove provided in the bottom plate. The wire is connected to the terminal through a round tube, and the sealing plate under the bottom plate is used to facilitate the fixed packaging of the wire. The sensor has the characteristics of convenient packaging, excellent insulation performance, good protection performance, and good reliability. The cylindrical shell structure of the annular plastic shell facilitates the cooperation with the rotating probe on the automobile instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a coil induction angle sensor. Background Art

[0002] In recent years, angle sensors that generate angle detection values ​​that correspond to the angle of a detection object have been widely used in various applications such as detecting the rotational position of a steering wheel or a power steering motor of an automobile. As an angle sensor, there is, for example, a magnetic angle sensor. In an angle sensor system using a magnetic angle sensor, a magnetic field generating unit is usually provided that is linked to the rotation or linear motion of the object and generates a rotating magnetic field that rotates in a direction. The magnetic field generating unit is, for example, a magnet. The angle of the detection object in the magnetic angle sensor corresponds to the angle formed by the direction of the rotating magnetic field at the reference position relative to the reference direction.

[0003] However, the existing angle sensors have poor protection performance for the coil during use. The coil is prone to severe wear after long-term use, which affects the service life of the coil and further affects the accuracy of angle detection, causing inconvenience in use. Therefore, a coil induction angle sensor is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a coil induction angle sensor with advantages such as improved protection. It solves the problem that the existing angle sensors have poor protection performance for the coil during use, and the coil is prone to severe wear after long-term use, which affects the service life of the coil, and further affects the accuracy of angle detection, causing inconvenience in use.

[0005] To achieve the above object, the utility model provides the following technical solution: a coil induction angle sensor, comprising an annular plastic shell, an annular coil is arranged inside the annular plastic shell, a wire is fixedly connected to the outside of the annular coil, and a packaging component is arranged between the wire and the annular plastic shell;

[0006] The packaging component includes a bottom plate, which is located at the bottom of the annular plastic shell. A round tube is arranged on the upper side of the bottom plate, and the round tube is located in the middle of the inner part of the annular plastic shell. A terminal head is arranged at the upper end of the round tube, and a sealing plate is also arranged on the lower side of the bottom plate.

[0007] Furthermore, the annular plastic shell is composed of an annular outer shell and an annular inner shell, an annular cavity is formed between the annular outer shell and the annular inner shell, and the bottom of the annular cavity is a sealing structure.

[0008] Furthermore, the bottom plate is fixedly bonded to the bottom of the annular plastic shell, a first threading hole is provided at the bottom of the annular plastic shell, a second threading hole is provided on the inner side of the bottom plate, and the first threading hole and the second threading hole are connected.

[0009] Furthermore, the number of the first threading holes and the number of the second threading holes are both two, and the two first threading holes and the two second threading holes are respectively located on the left and right sides of the round tube.

[0010] Furthermore, the wire passes through the bottom plate and the round tube and extends to the outside of the terminal head.

[0011] Furthermore, a wire passing groove is provided on the inner side of the bottom plate, the wire passing groove is communicated with the second wire threading hole, and the wire passing groove is also communicated with the inner side of the round tube.

[0012] Furthermore, a positioning screw is inserted into the inner side of the sealing plate, and the positioning screw is threadedly connected to the inner side of the bottom plate. The number of the positioning screws is set to two, and they are respectively located on the left and right sides of the sealing plate.

[0013] Furthermore, the round tube is fixedly welded to the upper side of the bottom plate, and the terminal head is fixedly welded to the upper end of the round tube.

[0014] Compared with the prior art, the utility model provides a coil induction angle sensor, which has the following beneficial effects:

[0015] The coil induction angle sensor has an annular cavity in the annular plastic shell, which is convenient for quickly loading the annular coil and facilitating the subsequent glue filling. The first threading hole and the second threading hole are provided to facilitate the wire to pass through the bottom plate, and the wire is arranged by using the wire groove provided in the bottom plate. The wire is connected to the terminal head through a round tube, and the sealing plate under the bottom plate is used to facilitate the fixed packaging of the wire. The sensor has the characteristics of convenient packaging, excellent insulation performance, good protection performance and good reliability. The cylindrical shell structure of the annular plastic shell is convenient for cooperation with the rotating probe on the automobile instrument to form a complete set of angle detection sensing mechanisms, so as to achieve the goal of accurate angle detection, and solve the problem that the existing angle sensor has poor protection performance of the coil during use, and the coil is easily subject to greater wear and tear after long-term use, which affects the service life of the coil, thereby affecting the accuracy of angle detection and causing inconvenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure shown;

[0018] Figure 3 This is a schematic diagram of the structure of the annular plastic shell of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the bottom plate and the circular tube of the utility model.

[0020] In the figure: 1, annular plastic shell; 101, annular outer shell; 102, annular inner shell; 103, annular cavity; 2, annular coil; 3, wire; 4, bottom plate; 5, round tube; 6, terminal head; 7, sealing plate; 8, first threading hole; 9, second threading hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-4 A coil induction angle sensor in this embodiment includes an annular plastic shell 1, an annular coil 2 is arranged inside the annular plastic shell 1, and a wire 3 is fixedly connected to the outer side of the annular coil 2, and the number of the wires 3 is two.

[0024] In this embodiment, a packaging component is arranged between the wire 3 and the annular plastic shell 1, and the packaging component includes a bottom plate 4, the bottom plate 4 is located at the bottom of the annular plastic shell 1, and the bottom plate 4 is fixedly bonded to the bottom of the annular plastic shell 1, and a round tube 5 is arranged on the upper side of the bottom plate 4, and the round tube 5 is located in the middle of the inside of the annular plastic shell 1, and a terminal head 6 is arranged at the upper end of the round tube 5.

[0025] The round tube 5 is fixedly welded on the upper side of the bottom plate 4 , the terminal head 6 is fixedly welded on the upper end of the round tube 5 , and the wire 3 passes through the bottom plate 4 and the round tube 5 and extends to the outside of the terminal head 6 .

[0026] It should be noted that a first threading hole 8 is provided at the bottom of the annular plastic shell 1, and a second threading hole 9 is provided on the inner side of the bottom plate 4. The first threading hole 8 and the second threading hole 9 are connected. The number of the first threading hole 8 and the second threading hole 9 are both two. The two first threading holes 8 and the second threading holes 9 are respectively located on the left and right sides of the circular tube 5. The opening of the first threading hole 8 and the second threading hole 9 facilitates the insertion of the wire 3, thereby facilitating installation.

[0027] It should be noted that a wire groove is provided on the inner side of the base plate 4, the wire groove is connected to the second wire threading hole 9, and the wire groove is also connected to the inner side of the round tube 5. The wire 3 can be easily laid in the base plate 4 through the provided wire groove, which facilitates installation.

[0028] In this embodiment, a sealing plate 7 is further provided on the lower side of the base plate 4, and a positioning screw is inserted into the inner side of the sealing plate 7. The positioning screw is threadedly connected to the inner side of the base plate 4. The number of positioning screws is set to two, and they are respectively located on the left and right sides of the sealing plate 7. The sealing plate 7 is provided to facilitate the sealing of the base plate 4, thereby improving the protection performance of the wire 3. The positioning screw is provided to facilitate fixing the sealing plate 7 to the lower side of the base plate 4. The two positioning screws can improve the stability of the installation, and the installation and disassembly are convenient, which is convenient for maintenance.

[0029] In this embodiment, the annular plastic shell 1 and the packaging component are both made of polyvinyl chloride. The annular plastic shell 1 and the packaging component made of polyvinyl chloride have good insulation performance and good protection performance.

[0030] Embodiment 2:

[0031] See also Figure 3 On the basis of the first embodiment, the annular plastic shell 1 is composed of an annular outer shell 101 and an annular inner shell 102. An annular cavity 103 is formed between the annular outer shell 101 and the annular inner shell 102. The bottom of the annular cavity 103 is a sealed structure. The annular cavity 103 between the annular outer shell 101 and the annular inner shell 102 facilitates the rapid assembly of the annular coil 2, has good protection performance, and improves the reliability of the device. The cylindrical shell structure of the annular plastic shell 1 is convenient for cooperation with the rotating probe on the automobile instrument to form a complete set of angle detection sensing mechanisms, achieving the goal of accurate angle detection.

[0032] The working principle of the above embodiment is:

[0033] When the utility model is in use, the annular cavity 103 in the annular plastic shell 1 facilitates the rapid assembly of the annular coil 2, and the packaging is convenient. The first threading hole 8 and the second threading hole 9 are provided to facilitate the wire 3 to pass into the bottom plate 4. The wire 3 is arranged by using the wire groove provided in the bottom plate 4. The wire 3 is connected to the terminal head 6 through the round tube 5. The sealing plate 7 under the bottom plate 4 facilitates the stable packaging of the wire 3. The utility model has excellent insulation performance, good protection performance and good reliability. The cylindrical shell structure of the annular plastic shell 1 facilitates the cooperation with the rotating probe on the automobile instrument to form a set of complete angle detection sensing mechanisms, so as to achieve the goal of accurate angle detection.

[0034] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects. It should be noted that in this article, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coil induction angle sensor, characterized in that: It comprises an annular plastic shell (1), wherein an annular coil (2) is arranged inside the annular plastic shell (1), a wire (3) is fixedly connected to the outside of the annular coil (2), and a packaging component is arranged between the wire (3) and the annular plastic shell (1); The packaging component comprises a bottom plate (4), the bottom plate (4) being located at the bottom of the annular plastic shell (1), a round tube (5) being arranged on the upper side of the bottom plate (4), the round tube (5) being located in the middle of the inside of the annular plastic shell (1), a terminal (6) being arranged at the upper end of the round tube (5), and a sealing plate (7) being arranged on the lower side of the bottom plate (4).

2. The coil induction angle sensor according to claim 1, characterized in that: The annular plastic shell (1) is composed of an annular outer shell (101) and an annular inner shell (102); an annular cavity (103) is formed between the annular outer shell (101) and the annular inner shell (102); and the bottom of the annular cavity (103) is a sealed structure.

3. The coil induction angle sensor according to claim 1, characterized in that: The bottom plate (4) is fixedly bonded to the bottom of the annular plastic shell (1); a first threading hole (8) is provided at the bottom of the annular plastic shell (1); a second threading hole (9) is provided on the inner side of the bottom plate (4); the first threading hole (8) and the second threading hole (9) are connected.

4. The coil induction angle sensor according to claim 3, characterized in that: The number of the first threading holes (8) and the number of the second threading holes (9) are both two, and the two first threading holes (8) and the two second threading holes (9) are respectively located on the left and right sides of the circular tube (5).

5. The coil induction angle sensor according to claim 1, characterized in that: The wire (3) passes through the bottom plate (4) and the round tube (5) and extends to the outside of the wiring head (6).

6. The coil induction angle sensor according to claim 3, characterized in that: A wire passing groove is provided on the inner side of the bottom plate (4), the wire passing groove is connected to the second wire threading hole (9), and the wire passing groove is also connected to the inner side of the circular tube (5).

7. The coil induction angle sensor according to claim 1, characterized in that: A positioning screw is inserted into the inner side of the sealing plate (7), and the positioning screw is threadedly connected to the inner side of the bottom plate (4). The number of the positioning screws is set to two, and they are respectively located on the left and right sides of the sealing plate (7).

8. The coil induction angle sensor according to claim 1, characterized in that: The round tube (5) is fixedly welded to the upper side of the bottom plate (4), and the terminal head (6) is fixedly welded to the upper end of the round tube (5).

Images