Sensor terminal and sensor terminal injection mold structure

Abstract

The utility model discloses a sensor terminal and a sensor terminal injection mold structure, the sensor terminal comprises three connecting terminals which protrude out of a sensor shell and extend in parallel, the root part of each connecting terminal is provided with an arc-shaped bulge, one end, relatively far away from the root part, of each connecting terminal is an inner side end, and the other end of each connecting terminal is an outer side end. Limiting bosses are symmetrically arranged on the two sides, close to the inner side ends, of the connecting terminals in the extending direction, a short circuit prevention gap is formed between the limiting bosses on the adjacent connecting terminals, and a guide channel matched with a connector injection mold is formed between the adjacent connecting terminals. And the limiting boss is arranged on the connecting terminal so as to guide the connecting terminal when the connecting terminal is inserted into the connector injection mold, and the connector injection mold can abut against the limiting boss, so that injection molding calibration is completed. According to the sensor terminal and the sensor terminal injection mold structure, the injection molding length quality requirement of the sensor terminal can be met, and the plugging work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor equipment technology, and in particular to sensor terminals and sensor terminal injection mold structures. Background Technology

[0002] Sensor male connectors commonly have two, three, or more pins. They are typically developed and injection molded to match the standard female connector. After designing the matching terminal dimensions, they are stamped and then injection molded in a mold to form a sensor bracket. One end of the bracket connects to the chip or PCBA, and the other end serves as the sensor's male terminal, mating with the female connector. The sensor's terminal dimensions are often designed based on the standard female connector to ensure good contact during mating.

[0003] In the prior art, the sensor is used in conjunction with the female connector. During the secondary injection molding of the connector, the sensor terminal is not easy to insert into the insert hole of the mold, and the terminal length is not easy to control, which can easily cause terminal deformation and dimensional defects. Utility Model Content

[0004] This application provides a sensor terminal and a sensor terminal injection mold structure, which can facilitate the quick insertion of the sensor terminal into the connector injection mold through the limiting boss and guide channel. This can not only meet the size requirements of the sensor terminal, but also improve work efficiency and reduce the risk of insertion quality.

[0005] The first aspect of this application provides a sensor terminal, including three connecting terminals that protrude from the sensor housing and extend in parallel. The root of each connecting terminal has an arc-shaped protrusion, and the end of each connecting terminal that is relatively far from the root is an inner end. Each connecting terminal has symmetrical limiting bosses on both sides of the extending direction near the inner end, and a short-circuit prevention gap is provided between the limiting bosses on adjacent connecting terminals. Adjacent connecting terminals form a guide channel that cooperates with a connector injection mold to guide the connecting terminals when they are inserted into the connector injection mold, and to enable the connector injection mold to abut against the limiting bosses to complete the injection calibration.

[0006] In one possible implementation, the limiting boss is a square boss, and all the limiting bosses have the same height in the extending direction.

[0007] In one possible implementation, the portion of the connecting terminal located outside the limiting boss is defined as a mating portion, which consists of a guide portion near the outer side and a standard portion near the inner side, wherein the cross-section of the standard portion is square, the cross-section of the guide portion is an isosceles trapezoid, and the slope of the waist of the guide portion is 2.50% to 3.60%.

[0008] A second aspect of this application provides a sensor terminal injection mold structure, including a connector injection mold and a sensor terminal as described above. The connector injection mold includes a mold body, the mold body having a mold boss that mates with the mating part of the guide channel, and an avoidance channel being formed between adjacent mold bosses. The mold body has notches on both sides of the mold boss that mate with the connecting terminal and are flush with the bottom of the avoidance channel.

[0009] In one possible implementation, the length of the mating portion is less than the length of the mold boss, such that when the sensor terminal is inserted into the connector injection mold, there is a gap between the bottom of the connecting terminal and the clearance channel.

[0010] In one possible implementation, the gap is 0.8 mm to 1.2 mm.

[0011] Beneficial effects: Compared with the prior art, the sensor terminal and sensor terminal injection mold structure provided in this application can form a limit when the sensor terminal and the connector injection mold are inserted by setting a limiting boss on the connecting terminal, thereby effectively controlling the length of the sensor terminal inserted into the connector injection mold during the injection process. In addition, the guide channel formed between adjacent connecting terminals can also ensure that the sensor terminal and the connector injection mold are quickly inserted into place, resulting in high work efficiency.

[0012] By designing the guide section on the mating part with a certain slope, a certain guide slope is formed on the outside of the guide channel, resulting in a better guiding effect;

[0013] The length of the mating part is less than the length of the mold boss, so that when the sensor terminal is inserted into the connector injection mold, there is a gap between the bottom of the connecting terminal and the clearance channel, which can solve the problem of easy glue overflow during the mold injection process.

[0014] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0015] Figure 1 A schematic diagram of the sensor terminal structure of this application is shown.

[0016] Figure 2 A partial top view of the sensor terminal structure of this application is shown.

[0017] Figure 3 A schematic diagram of the injection mold structure for the sensor terminal of this application is shown.

[0018] Figure 4 It shows Figure 3 A magnified structural diagram of part A in the middle. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0020] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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, the above terms should not be construed as limitations on this utility model.

[0021] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0022] refer to Figure 1 and Figure 2This application provides a sensor terminal 100, including three connecting terminals 10 protruding from the sensor housing and extending in parallel. Each connecting terminal 10 has two opposing ends. The end closer to the outer side, used for mating with the mold during injection molding, is the root. The opposite end, away from the root, is the inner end. The root of each connecting terminal 10 has an arc-shaped protrusion 11. Each connecting terminal 10 has symmetrically arranged limiting bosses 12 on both sides of the extending direction near the inner end. A short-circuit prevention gap 101 is provided between the limiting bosses 12 on adjacent connecting terminals 10, thereby forming a connection suitable for limiting the connection. The limiting structure of the injection mold, based on the function of the anti-short circuit gap 101, can also prevent short circuits between adjacent connecting terminals 10. In addition, the adjacent connecting terminals 10 form a guide channel 102 that cooperates with the connector injection mold to guide the connecting terminals 10 when they are inserted into the connector injection mold, so that the sensor terminals 100 can be quickly and accurately inserted into the connector injection mold, thereby improving work efficiency. It also allows the connector injection mold to abut against the limiting boss 12 to complete the injection calibration. Thus, the insertion length of the sensor terminals 100 can be effectively controlled during the insertion process, thereby meeting the size requirements of the sensor terminals 100, reducing quality risks, and facilitating the assembly and use of the terminal.

[0023] In summary, conventional sensor terminals are directly inserted into the connector injection mold for injection molding. However, during the injection process, the sensor terminals are prone to retraction, making it difficult to meet the injection length quality requirements. The improved design incorporates a limiting boss 12 between adjacent connecting terminals 10 of the sensor terminal 100, serving as a limiting reference or injection calibration reference. During injection, it is only necessary to ensure that the connector injection mold consistently abuts against the limiting boss 12. This effectively controls the injection length quality requirements of the sensor terminal 100. Furthermore, by forming a guide channel 102 between adjacent connecting terminals 10, a guiding function is provided during insertion, ensuring quick and accurate insertion between the sensor terminal 100 and the connector injection mold, resulting in high work efficiency.

[0024] In one embodiment, the limiting boss 12 is a square boss, and all the limiting bosses 12 have the same height in the extending direction, thereby forming a larger limiting area to ensure the limiting quality.

[0025] In one embodiment, the portion of the connecting terminal 10 located outside the limiting boss 12 is defined as the mating portion 20. The mating portion 20 consists of a guide portion 21 near the outer side and a standard portion 22 near the inner side. The standard portion 22 has a square cross-section, while the guide portion 21 has an isosceles trapezoidal cross-section, and the slope of the waist of the guide portion 21 is 2.50% to 3.60%. This satisfies the guiding requirements of the connector injection mold, while the sensor terminal 100 will not experience significant deformation that would affect subsequent use. For example, taking the total length of the guide portion 21 and the root arc protrusion 11 as 6mm, the width of the guide portion 21 near the arc protrusion 11 is 1mm, and the width of the guide portion 21 near the standard portion 22 is 1.2mm.

[0026] A second aspect of this application provides a sensor terminal injection mold structure, combined with... Figures 1 to 4 The system includes a connector injection mold 30 and a sensor terminal 100 as described above. The connector injection mold 30 includes a mold body 31, and the mold body 31 is provided with a mold boss 32 that mates with the mating part 20 of the guide channel 102. An isolation channel 301 is formed between adjacent mold bosses 32. The mold body 31 is provided with notches 302 on both sides of the mold bosses 32 that mate with the connecting terminal 10 and are flush with the bottom of the isolation channel 301. Thus, during the injection molding process, the mold bosses 32 are directly abutted against the limiting bosses 12, which can quickly and accurately connect and match the sensor terminal 100 and the connector injection mold 30, meet the injection length quality requirements of the sensor terminal 100, and improve work efficiency.

[0027] It is worth mentioning that, considering that if the sensor terminal 100 is made narrow in the absence of a guide, the mold is prone to overflowing glue, while if the sensor terminal 100 is made wide, it may not fit into the insert hole of the connector injection mold 30. Therefore, in one embodiment, the length of the mating part 20 is less than the length of the mold boss 32, so that when the sensor terminal 100 is inserted into the connector injection mold 30, there is a gap α between the bottom of the connecting terminal 10 and the clearance channel 301, which is a gap for accommodating glue. In this way, it is not easy for glue to overflow during insertion, and it is also easier to insert when mating with the female connector used, which can improve the convenience of assembly.

[0028] In one embodiment, the gap α is 0.8mm to 1.2mm, for example, a gap of 1mm in length.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A sensor terminal, characterized in that, The device includes three connecting terminals that protrude from the sensor housing and extend in parallel. The root of each connecting terminal has an arc-shaped protrusion, and the end of each connecting terminal that is far from the root is the inner end. Each connecting terminal has symmetrical limiting bosses on both sides of the extending direction near the inner end, and there is a short-circuit prevention gap between the limiting bosses on adjacent connecting terminals. The adjacent connecting terminals form a guide channel that cooperates with the connector injection mold to guide the connecting terminals when they are inserted into the connector injection mold, and to allow the connector injection mold to abut against the limiting bosses to complete the injection calibration.

2. The sensor terminal as described in claim 1, characterized in that, The limiting boss is a square boss, and all the limiting bosses have the same height in the extending direction.

3. The sensor terminal as described in claim 1, characterized in that, The portion of the connecting terminal located outside the limiting boss is defined as the mating part. The mating part consists of a guide part near the outer side and a standard part near the inner side. The cross-section of the standard part is square, and the cross-section of the guide part is an isosceles trapezoid. The slope of the waist of the guide part is 2.50% to 3.60%.

4. The structure of the injection mold for sensor terminals, characterized in that, The invention includes a connector injection mold and a sensor terminal as described in claim 3, wherein the connector injection mold includes a mold body, the mold body is provided with a mold boss that mates with the mating part of the guide channel, an avoidance channel is formed between adjacent mold bosses, and the mold body is provided with notches on both sides of the mold boss that mate with the connecting terminal and are flush with the bottom of the avoidance channel.

5. The sensor terminal injection mold structure as described in claim 4, characterized in that, The length of the mating part is less than the length of the mold boss, so that when the sensor terminal is inserted into the connector injection mold, there is a gap between the bottom of the connecting terminal and the clearance channel.

6. The sensor terminal injection mold structure as described in claim 5, characterized in that, The gap is 0.8mm to 1.2mm.

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