CN215527943U - Conductive terminal, electric connector and temperature sensor - Google Patents

Abstract

The utility model relates to a conductive terminal, an electric connector and a temperature sensor. The conductive terminal comprises a connecting end used for being connected with a lead, and a positioning hole for the lead to be inserted into and positioned is formed in the connecting end; the positioning hole is provided with an insertion opening for the lead to be inserted into the positioning hole; and a welding opening is formed in the positioning hole in the direction perpendicular to the central axis of the conductive terminal, so that the lead and the connecting end are welded together through the welding opening. The electrical connector comprises the conductive terminal, and the temperature sensor comprises the electrical connector.

Description

Conductive terminal, electric connector and temperature sensor

Technical Field

The utility model relates to the technical field of electronic devices, in particular to a conductive terminal, an electric connector comprising the conductive terminal and a temperature sensor comprising the electric connector.

Background

A temperature sensor refers to a sensor that is capable of sensing temperature and converting the sensed temperature into a usable output signal. One common temperature sensor includes a thermistor that includes a thermistor body and a wire connected to the thermistor body, and an electrical connector that includes an insulating housing and conductive terminals held within the insulating housing, wherein the wire of the thermistor is typically soldered directly to the conductive terminals of the electrical connector. However, when soldering, the lead of the thermistor is difficult to position on the conductive terminal of the existing electric connector, so that the soldering missing phenomenon is easy to occur, thereby causing a high rejection rate.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.

According to an aspect of the present invention, there is provided a conductive terminal including a connection end for connection with a wire, the connection end being formed with a positioning hole into which the wire is inserted and positioned; the positioning hole is provided with an insertion opening for the lead to be inserted into the positioning hole; and a welding opening is formed in the positioning hole in the direction perpendicular to the central axis of the conductive terminal, so that the lead and the connecting end are welded together through the welding opening.

Optionally, the cross section of the connecting end is rectangular.

Optionally, the weld opening is rectangular.

According to another aspect of the present invention, there is also provided an electrical connector comprising an insulative housing and a conductive terminal as described above retained in the insulative housing.

According to still another aspect of the present invention, there is also provided a temperature sensor, the temperature sensor includes a thermistor and the electrical connector as described above, the thermistor includes a thermistor body and a lead wire connected to the thermistor body, and a free end of the lead wire is inserted into a positioning hole of a conductive terminal of the electrical connector and is welded to the conductive terminal.

According to the conductive terminal of the exemplary embodiment of the present disclosure, the connection end is provided with a positioning hole having an insertion opening arranged in a direction parallel to the central axis or the longitudinal axis of the conductive terminal and a welding opening arranged in a direction perpendicular to the axis, so that the wire of the thermistor can be directly inserted from the insertion opening of the positioning hole, and the wire can be limited when being welded with the conductive terminal via the welding opening of the positioning hole, thereby preventing the missing welding phenomenon, improving the welding quality, reducing the rejection rate, and facilitating the welding; in addition, the welding of the lead can be accurately positioned without an additional positioning device, so that the cost is reduced.

Drawings

The utility model is described in detail below by way of non-limiting examples with reference to the accompanying drawings, which are schematic only and not necessarily to scale, and which show only those parts which are necessary in order to elucidate the utility model, while other parts may be omitted or merely mentioned briefly. That is, the present invention may include other components in addition to those shown in the drawings. In the drawings:

fig. 1 is a partial schematic view of a conductive terminal according to an exemplary embodiment of the present invention.

Fig. 2 is a schematic diagram of the connection of a conductive terminal and a thermistor according to an exemplary embodiment of the utility model.

Fig. 3 is a schematic structural view of a conductive terminal according to another exemplary embodiment of the present invention.

Detailed Description

The conductive terminal according to an embodiment of the present invention is described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it should be understood that the utility model is not limited to the specific embodiments described. Rather, it is contemplated that the utility model may be practiced with any combination of the following features and elements, whether or not they relate to different embodiments. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim.

As shown in fig. 1 and 2, according to an exemplary embodiment of the present invention, a conductive terminal 10 for an electrical connector includes a body portion 11 made of a conductive material, the body portion 11 having a connection end for connection with a lead wire 22 of a thermistor 20. Specifically, the connection end of the main body 11 is formed with a positioning hole 12. The positioning hole 12 is provided with an insertion opening 14 facing to a direction parallel to the central axis or the longitudinal axis of the conductive terminal 10, so that the lead 22 of the thermistor 20 is inserted into the positioning hole 12 and the inserted lead 22 is positioned by the positioning hole 12; the positioning hole 12 is provided with a welding opening 13 facing in a direction perpendicular to the central axis or longitudinal axis of the conductive terminal 10, the welding opening 13 being used for a welding gun or the like of a welding device to pass at least partially therethrough to perform a welding operation on the connection end of the lead wire 22 and the body portion 11 in the positioning hole 12, for example, to weld the lead wire 22 on a step portion protruding from the bottom wall of the positioning hole 12. During assembly, the lead 22 of the thermistor 20 is inserted into the positioning hole 12 through the insertion opening 14, and then the lead 22 and the conductive terminal 10 are welded together through the welding opening 13. Since the lead 22 is positioned by the positioning hole 12, the missing welding phenomenon can be avoided or reduced, thereby improving the welding quality, reducing the rejection rate and facilitating the welding. In addition, the conducting wire 22 is positioned through the positioning hole 12 of the conducting terminal 10 itself, and thus, no additional device is needed to position the conducting wire 22, thereby reducing the manufacturing cost and improving the welding efficiency.

As shown in fig. 1 and 2, the connecting end of the body portion 11 of the conductive terminal 10 may have a cross section, for example, in a rectangular shape, the insertion opening 14 is near a top side of the rectangular shape in the cross section of the connecting end of the body portion 11, and the soldering opening 13 is located on a top side of the connecting end of the conductive terminal 10. That is, the insertion opening 14 is closer to or offset from the side where the welding opening 13 is located in the end face of the connection end. It should be noted that, in other embodiments of the present disclosure, the insertion opening 14 may be close to the left side, the right side or the bottom side of the rectangular shape in the cross section of the connection end of the main body portion 11, and in this case, the soldering opening 13 is located on the left side, the right side or the bottom side of the connection end of the conductive terminal 10, respectively.

As shown in fig. 1, the welding opening 13 has a rectangular shape, and the size of the rectangular shape may be specifically designed according to parameters such as the outer size of the conductive terminal 10 and the length of the wire 22 of the thermistor 20 that needs to be inserted into the conductive terminal 10, so that the wire 22 of the thermistor 20 and the connection end of the conductive terminal 10 may be effectively welded together and the welding operation may be facilitated. Furthermore, it should be noted that in some other embodiments of the present disclosure, the welding opening 13 may have other shapes, such as a circle, an ellipse, and the like. Likewise, the insertion opening 14 may be rectangular in shape as shown, but may be any other suitable shape.

As shown in fig. 3, a conductive terminal 10 ' according to another exemplary embodiment of the present invention may include an inverted U-shaped structure provided at a connection end of a main body portion 11 ' thereof, the inverted U-shaped structure including a base wall 4a ' (parallel to a plane in which the main body portion 11 ' is located in fig. 3) and two side walls 4b ', 4c ' (perpendicular to a plane in which the main body portion 11 ' is located in fig. 3) respectively connected to the base wall 4a ', and free ends (i.e., lower ends in fig. 3, also free ends of the entire inverted U shape) of the two side walls 4b ', 4c ' respectively connected to side faces of the connection end of the main body portion 11 '. Thus, the inverted U-shaped structure and the connecting end enclose to form a positioning hole 12' with an insertion opening. In the illustrated embodiment, the connecting end of the main body 11' has a rectangular cross-section, and the two side walls of the inverted U-shaped structure may be connected to the same side surface (the top side surface in fig. 3) of the connecting end of the main body, or may be connected to the left and right side surfaces of the connecting end, respectively. In addition, a welding opening 13 'is formed in the base wall 4 a' of the inverted U-shaped structure.

In the above embodiments, the conductive terminal 10 may be a one-piece terminal integrally formed, and the positioning hole 12 may be formed by, for example, stamping, bending, or the like.

Furthermore, in other embodiments of the present disclosure, such as embodiments where the positioning hole 12 ' is enclosed by an inverted U-shaped structure and a connecting end, the conductive terminal 10 ' may also be formed by connecting the separated inverted U-shaped structure and the main body portion 11 ' together, such as by welding, bonding, etc.

According to another aspect of the present disclosure, there is also provided an electrical connector including an insulative housing and conductive terminals held in the insulative housing, wherein the conductive terminals employ the conductive terminals 10, 10' as described above.

According to still another aspect of the present disclosure, there is also provided a temperature sensor, which includes a thermistor 20 and an electrical connector as described above, the thermistor 20 may include a thermistor body 21 and a lead 22 connected to the thermistor body 21, and a free end of the lead 22 is inserted into the positioning hole 12, 12 ' of the conductive terminal 10, 10 ' of the electrical connector and welded with the conductive terminal 10, 10 '.

According to the conductive terminals 10, 10 ' of the exemplary embodiment of the present disclosure, by providing the positioning holes 12, 12 ' at the connection ends thereof, the lead wire 22 of the thermistor 20 can be directly inserted through the insertion openings of the positioning holes, so that when the lead wire 22 is welded to the conductive terminals 10, 10 ' through the welding openings 13, 13 ' of the positioning holes 12, 12 ', the lead wire 22 can be limited by the positioning holes, and thus, the missing welding phenomenon can be prevented or reduced, thereby improving the welding quality, reducing the rejection rate, and facilitating the welding. In addition, since the conductive terminals 10, 10 'are positioned by the positioning holes 12, 12' thereof, there is no need to use another device for positioning the conductive wires 22, thereby reducing the cost and improving the welding efficiency.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the utility model is not to be limited to the exemplary embodiments set forth herein.

Claims (5)

1. An electrically conductive terminal comprising a connection end for connection with a wire,

the connecting end is provided with a positioning hole for the lead to be inserted into and position the lead; the positioning hole is provided with an insertion opening for the lead to be inserted into the positioning hole; and a welding opening is formed in the positioning hole in the direction perpendicular to the central axis of the conductive terminal, so that the lead and the connecting end are welded together through the welding opening.

2. An electrically conductive terminal as claimed in claim 1,

the cross section of the connecting end is rectangular.

3. An electrically conductive terminal as claimed in claim 2,

the welding opening is rectangular.

4. An electrical connector comprising an insulative housing and an electrically conductive terminal according to any one of claims 1 to 3 retained in the insulative housing.

5. A temperature sensor, characterized by comprising a thermistor and the electric connector of claim 4, wherein the thermistor comprises a thermistor body and a lead wire connected with the thermistor body, and the free end of the lead wire is inserted into the positioning hole of the conductive terminal of the electric connector and welded with the conductive terminal.

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