Connecting tower for motor position sensor

Abstract

The utility model discloses a connecting tower used for a motor position sensor, which relates to the technical field of sensors, and comprises a housing and a plurality of pins, the housing wraps the pins, each pin comprises a terminal, a body and a contact which are integrally formed, the terminal and the contact are respectively arranged at two ends of the body, and a bending part is formed between the contact and the body; the length direction of the body is perpendicular to the plane where the end face of the contact is located, and the gravity center of the contact deviates from the center line of the length direction of the body. According to the connecting tower, the pin structures are optimized, the positions and shapes of the contacts at the bending parts are adjusted, and the contacts are arranged in an offset manner relative to the body, so that the layout of the pins is adjusted, the plurality of pins can be flatly spread on one surface, mutual shielding among the plurality of pins is avoided, positioning of an injection mold is facilitated, the connecting tower can be subjected to one-time injection molding without pre-injection molding, and the production efficiency is improved. The production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a connecting tower used for a motor position sensor. Background Art

[0002] Motor position sensors are mainly used in automotive drive systems and are used in brake and transmission systems. Motor position sensors are installed on motors to monitor and feedback the rotation angle and position of the motor shaft.

[0003] like Figure 1-Figure 4 As shown, there is a long tower-shaped connector for a motor position sensor in the prior art, the pin used in the connector includes a fisheye terminal 1', a body 2' and a contact 3', and there is a bending area 4' with a radius of 0.3mm between the contact 3' and the body 2'. Since the width of the contact 3' is greater than the width of the body 2', the contact 3' occupies space on both the left and right sides of the body 2'; the diameter of the contact 3' is 2.5mm, the contact area of ​​the contact 3' is small, and the precision requirement of the assembly environment is high.

[0004] During the injection molding process, pins are blocked from each other, multiple pins cannot be spread out on a plane, and the mold cannot position the pins on a plane. Due to the complex layout of pins inside the connector, it is necessary to pre-inject the connection block to fix multiple pins, and then re-inject the connector.

[0005] Therefore, the positioning structure of the pin in the injection mold is complicated, and two sets of injection molds are required for two injection moldings, which has a high production cost. At the same time, in order to avoid cracking of the bending area 4', it is necessary to locally thin the bending area 4', which generates additional processes and increases production costs.

[0006] In view of this, the present invention is designed with an in-depth understanding of the many deficiencies and inconveniences caused by the imperfections in the existing sensor structure design, and the present invention is developed through active research, improvement and trial production. Utility Model Content

[0007] The utility model aims to overcome the deficiencies of the prior art, provide a connecting tower for a motor position sensor, and reduce production costs.

[0008] In order to achieve the above purpose, the solution of the utility model is:

[0009] A connection tower for a motor position sensor, comprising a shell and a plurality of pins, wherein the shell covers the pins, and the pins comprise an integrally formed terminal, a body, and a contact, wherein the terminal and the contact are respectively arranged at two ends of the body, and a bending portion is formed between the contact and the body;

[0010] The length direction of the body is perpendicular to the plane where the end surface of the contact is located, and the center of gravity of the contact is set away from the center line of the length direction of the body.

[0011] Furthermore, the plurality of pin needles are sequentially arranged at intervals along the width direction of the body, two adjacent pin needles are oriented in opposite directions to each other, the contacts are staggered, and the end faces of the plurality of contacts are all in the same plane.

[0012] Furthermore, the bending radius of the bending portion is 0.6 mm.

[0013] Furthermore, the diameter of the contact is 3.15 mm.

[0014] Furthermore, the body is provided with positioning holes along the thickness direction.

[0015] Furthermore, the body sides of the plurality of pin needles extend to form a limiting platform, the limiting platform is provided with a first notch, and two adjacent first notches are correspondingly arranged.

[0016] Furthermore, a second notch is provided on the side of the body of the plurality of pin needles.

[0017] After adopting the above structure, the connection tower of the utility model optimizes the pin needle structure, adjusts the position and shape of the contact at the bending part, and offsets the contact relative to the main body, thereby adjusting the pin needle layout, so that multiple pin needles can be spread out on one surface to avoid mutual obstruction between multiple pin needles, facilitate the positioning of the injection mold, and enable the connection tower to be injection molded in one time without pre-injection molding, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the prior art;

[0019] Figure 2 A schematic diagram of a part of the pin structure in the prior art Figure 1 ;

[0020] Figure 3 A schematic diagram of a part of the pin structure in the prior art Figure 2 ;

[0021] Figure 4 A schematic diagram of contact arrangement in the prior art;

[0022] Figure 5 This is a structural exploded view of a preferred embodiment of the utility model;

[0023] Figure 6 The structure of the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 7 The structure of the preferred embodiment of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 8 The structure of the pin needle in the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0026] Fig. 9 The structure of the pin needle in the preferred embodiment of the utility model is shown in FIG. Figure 2 .

[0027] Explanation of the reference numerals: 1. housing; 2. pin; 21. terminal; 22. body; 221. limit platform; 222. first recess; 223. second recess; 224. positioning hole; 23. contact; 24. bending portion. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] like Figures 5 to 9 As shown, a preferred embodiment of a connection tower for a motor position sensor of the utility model comprises a shell 1 and a plurality of pin needles 2, wherein the shell 1 is covered on the outside of the pin needles 2, and the pin needles 2 comprise an integrally formed terminal 21, a body 22 and a contact 23, wherein the terminal 21 and the contact 23 are respectively arranged at two ends of the body 22, and a bending portion 24 is formed between the contact 23 and the body 22; the length direction of the body 22 is perpendicular to the plane where the end face of the contact 23 is located, and the center of gravity of the contact 23 is arranged away from the center line of the length direction of the body 22.

[0031] Specifically, a plurality of pins 2 are enclosed in the housing 1, the terminal 21 and the contact 23 are exposed outside the housing 1, the terminal 21 and the circuit board of the motor position sensor are combined by crimping, and the contact 23 contacts the client signal connection spring, thereby playing the role of connecting the motor position sensor body 22 and the client interface. The contact 23 is connected to the body 22 through the bending portion 24, and the bending portion 24 is bent to one side in the thickness direction of the body 22, so that the end face of the contact 23 is perpendicular to the body 22, which facilitates the contact 23 to contact the client signal connection spring.

[0032] In this embodiment, the contact 23 is in the shape of a disk, and the center of gravity of the contact 23, i.e., the center of the circle, is offset to one side in the width direction of the body 22. The contact 23 only occupies the space on one side of the body 22, leaving space on the other side of the body 22. Therefore, when arranging two adjacent pin needles 2 facing opposite directions, the body 22 can be arranged close to each other, and the pin needles 2 do not need to be misplaced to avoid the contact 23, so that multiple pin needles 2 can be laid flat on the same plane, which is convenient for mold positioning during subsequent injection molding.

[0033] Specific as Figures 6 to 8 As shown, in order to improve space utilization, the six pin needles 2 in this embodiment are arranged in sequence along the width direction of the body 22, the adjacent two pin needles 2 are oriented in opposite directions and the contacts 23 are staggered, and the end faces of the multiple contacts 23 are all in the same plane.

[0034] Specifically, when the width of the contact 23 is less than or equal to twice the width of the body 22, when the body 22 is in the same plane, the adjacent pin needle 2 bodies 22 can fit tightly; when the width of the contact 23 is greater than twice the width of the body 22, the interval between adjacent pin needles 2 increases accordingly, but it also does not affect the arrangement of multiple pin needle 2 bodies 22 on the same plane.

[0035] The focus of the utility model is that the connection tower of the utility model optimizes the structure of the pin needle 2, adjusts the position and shape of the contact 23 at the bending portion 24, and offsets the contact 23 relative to the main body 22, thereby adjusting the layout of the pin needle 2, so that multiple pin needles 2 can be spread out on a surface to avoid mutual obstruction between multiple pin needles 2, facilitate the positioning of the injection mold, and enable the connection tower to be injection molded in one time without pre-injection molding, thereby reducing production costs.

[0036] In this embodiment, the bending radius of the bending portion 24 is 0.6 mm. Compared with the pin 2 whose bending radius in the bending area is 0.3 mm, the bending radius is increased to avoid the pin 2 from cracking due to bending problems, and there is no need for an additional process of local thinning of the bending area, thereby improving production efficiency and reducing production costs.

[0037] In this embodiment, the diameter of the contact 23 is 3.15 mm. Compared with the pin 2 with a contact 23 having a diameter of 2.5 mm, the structure of the connection tower of the utility model makes the contact area of ​​the contact 23 larger, solving the problem of high precision requirements for the assembly environment in the prior art.

[0038] In this embodiment, the body 22 is provided with positioning holes 224 along the thickness direction. Since the plurality of pins 2 are in the same plane, there is no mutual shielding between the positioning holes 224, and the pins 2 can be positioned through the positioning holes 224 during injection molding, thereby improving production efficiency.

[0039] The six pins 2 have a body 22 with a side extending therefrom to form a limiting platform 221, which has a first notch 222, and two adjacent first notches 222 are disposed correspondingly. The six pins 2 have a body 22 with a side extending therefrom to form a limiting platform 221, and two adjacent second notches 223 are disposed correspondingly.

[0040] In this embodiment, multiple limit platforms 221 on the main body 22 are arranged on one side close to the deflection direction of the contact 23, and multiple second recesses 223 are opened on the other side of the main body 22. When multiple pin needles 2 are arranged on the same plane, multiple through holes are formed between two adjacent pin needles 2 facing opposite directions for positioning, which facilitates injection molding.

[0041] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A connection tower for a motor position sensor, characterized in that: It comprises a shell and a plurality of pins, wherein the shell covers the pins, and the pins comprise an integrally formed terminal, a body and a contact, wherein the terminal and the contact are respectively arranged at two ends of the body, and a bending portion is formed between the contact and the body; The length direction of the body is perpendicular to the plane where the end surface of the contact is located, and the center of gravity of the contact is set away from the center line of the length direction of the body.

2. A connection tower for a motor position sensor according to claim 1, characterized in that: The plurality of pin needles are sequentially arranged at intervals along the width direction of the body, two adjacent pin needles are oriented in opposite directions to each other, the contacts are staggered, and the end faces of the plurality of contacts are all in the same plane.

3. A connection tower for a motor position sensor according to claim 1, characterized in that: The bending radius of the bending portion is 0.6 mm.

4. A connection tower for a motor position sensor according to claim 1, characterized in that: The diameter of the contacts is 3.15 mm.

5. The connection tower for a motor position sensor according to claim 1, characterized in that: The body is provided with positioning holes along the thickness direction.

6. A connection tower for a motor position sensor according to claim 2, characterized in that: The body sides of the plurality of pin needles extend to form a limiting platform, the limiting platform is provided with a first notch, and two adjacent first notches are correspondingly arranged.

7. A connection tower for a motor position sensor according to claim 2, characterized in that: The body sides of the plurality of pin needles are provided with second notches.

Images