CN202917689U - Electric connector and electric connector assembly - Google Patents

Abstract

The utility model relates to an electric connector and an electric connector assembly. An electrical connector for being mounted on a circuit board, the electrical connector comprising: a housing; and a plurality of connection terminals installed in the housing, each connection terminal being formed by an elongated metal The sheet is bent and formed, and has a retractable first contact end exposing the housing, a second contact end electrically connected to the circuit board, and a main body between the first contact end and the second contact end Each of the first contact ends is formed by bending in a plane parallel to the plane where the upper surface of the circuit board is located. The utility model also provides an electrical connector assembly including the electrical connector. The larger portion of the first contact end is arranged along the longitudinal direction of the housing, thereby reducing the height of the housing on the circuit board, thereby reducing the height of the entire electrical connector.

Description

Electrical Connectors and Electrical Connector Assemblies

technical field

The utility model relates to an electrical connector, in particular to a socket-type electrical connector with a printed circuit board and a connector assembly including the electrical connector.

Background technique

In electronic devices such as mobile phones, various portable players, digital cameras and video cameras, GPS devices, tablet computers, etc., electrical connectors are often required to electrically connect a printed circuit board with another electronic device or a battery.

FIG. 21 shows a schematic perspective view of an electrical connector connected to a printed circuit board (PCB) in the prior art. The electrical connector 200 includes a housing and a plurality of connecting terminals installed in the housing, and each connecting terminal is formed by bending a strip-shaped metal sheet multiple times. Each connection terminal has a retractable first contact end 201 exposed from the housing and a second contact end electrically connected to the printed circuit board 300 . At each first contact end 201 , the width of the metal sheet used to form the connection terminal is perpendicular to the thickness direction of the housing, that is, parallel to the length direction of the printed circuit board 300 . Such an electrical connector 200 is not suitable for being mounted on a very thin electronic device, or when mounted on a very thin electronic device, it will have a negative impact on the mechanical and electrical performance requirements of the electronic device itself. In addition, the distances between the connecting terminals 201 of the existing electrical connector 200 are all equal. If the distance needs to be changed, the structure of the housing of the electrical connector needs to be adjusted, and the installation method of the connecting terminals 201 needs to be adjusted at the same time. This increases the cost of using the electrical connector.

Contents of utility models

In order to overcome the above-mentioned or other defects in the prior art, the utility model proposes an electrical connector and an electrical connector assembly including the electrical connector, which can reduce the thickness of the entire electrical connector.

According to an embodiment of an aspect of the present invention, an electrical connector is provided for being installed on a circuit board, the electrical connector includes: a housing; and a plurality of connection terminals installed in the housing , each connection terminal is formed by bending an elongated metal sheet, and has a retractable first contact end exposing the housing, a second contact end electrically connected to the circuit board, and a first contact end located at the first A body portion between the contact end and the second contact end, each of the first contact ends is formed by bending in a plane parallel to the plane where the upper surface of the circuit board is located.

In the above-mentioned electrical connector, the first contact ends of the plurality of connecting terminals are arranged in two rows up and down in the height direction of the housing, and the first contact ends of the two rows up and down are arranged in the longitudinal direction of the housing. Arranged in dislocation with each other.

In the above electrical connector, three of the connection terminals are included, and the contact end of one connection terminal located in the upper row is arranged between the contact ends of the two connection terminals located in the lower row in the longitudinal direction of the housing .

In the above electrical connector, there are three accommodating spaces respectively corresponding to the three connecting terminals and insulated from each other in the housing, and a front wall of the housing is provided with a first A first opening through which the contact end passes, and a second opening for inserting the main body of the corresponding connecting terminal is provided on a rear wall of the housing.

In the above electrical connector, each of the connection terminals has a plurality of bent portions, so that each of the first contact ends can elastically expand and contract relative to the corresponding opening.

In the above electrical connector, each of the first contact ends has a substantially U-shape and includes a first arm connected to the main body portion of the connecting terminal and a second arm having a free end, when the first When the contact end extends out of the corresponding first opening, the free end is located in the first opening.

In the above electrical connector, the width of each of the accommodating spaces is approximately the same as that of the main body of the connection terminal, and the height of each of the first openings is approximately the same as the width of the first contact end of the connection terminal.

In the above-mentioned electrical connector, at least one protruding part is provided on each of the main parts, and a positioning channel is formed on one wall of each of the accommodating spaces to press fit with the corresponding protruding part.

In the above electrical connector, each of the second contact ends includes an electrical contact perpendicular to the width direction of the connection terminal, and a joint connected between the electrical contact and the main body portion of the connection terminal. parts, and each of the combining parts is combined with a corresponding notch formed on the housing.

In the above-mentioned electrical connector, an auxiliary notch is formed on the housing, and positioning channels that are press-fitted with the protrusions are formed on both walls of the accommodating space for accommodating the connecting terminals located in the upper row.

In the above electrical connector, a notch is formed at a portion of the housing corresponding to each of the electrical contacts.

According to another embodiment of the present utility model, there is provided an electrical connector assembly, comprising: a circuit board; the electrical connector as described in the various embodiments above; and at least one fixing member passing through the housing A body secures the electrical connector to the circuit board.

In the electrical connector and the connector assembly according to the above-mentioned various embodiments of the present utility model, since each first contact end is bent and formed in a plane parallel to the plane where the upper surface of the circuit board is located, the first contact The larger portion of the end is arranged along the longitudinal direction (lengthwise direction) of the housing, thereby reducing the height of the housing on the circuit board, thereby reducing the height of the entire electrical connector.

Description of drawings

In order to make the purpose, features and advantages of the present utility model more obvious and easy to understand, the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, wherein:

FIG. 1 is a schematic perspective view showing an electrical connector assembly according to an exemplary embodiment of the present invention;

Fig. 2 is a schematic perspective view showing an electrical connector according to an exemplary embodiment of the present invention;

Fig. 3 is a top view showing the electrical connector shown in Fig. 2;

Figure 4 is a front view showing the electrical connector shown in Figure 2;

Figure 5 is a rear view showing the electrical connector shown in Figure 2;

Fig. 6 is a schematic perspective view showing a housing in the electrical connector shown in Fig. 2;

Fig. 7 is a schematic perspective view showing a first connection terminal in the electrical connector shown in Fig. 2;

Fig. 8 is another schematic perspective view showing the first connecting terminal shown in Fig. 7;

Fig. 9 is a schematic perspective view showing two second connecting terminals in the electrical connector shown in Fig. 2;

FIG. 10 is another schematic perspective view showing a second connecting terminal shown in FIG. 7;

FIG. 11 is a schematic perspective view showing a fixing member in the electrical connector assembly shown in FIG. 1;

Fig. 12 is a schematic perspective view of the electrical connector of the present invention cut along the Z-Z line shown in Fig. 4;

Fig. 13 is a schematic perspective view of the electrical connector of the present invention cut along the Y-Y line shown in Fig. 4;

Fig. 14 is a schematic cross-sectional view of the housing of the utility model cut along the line W-W shown in Fig. 5, and the connecting terminals are not shown in the figure;

Fig. 15 is a schematic cross-sectional view of the electrical connector of the present invention cut along the line W-W shown in Fig. 5;

Figure 16 is a schematic cross-sectional view of the housing of the utility model cut along the X-X line shown in Figure 5, and the connecting terminals are not shown in the figure;

Figure 17 is a schematic cross-sectional view of the electrical connector of the present invention cut along the X-X line shown in Figure 5;

Fig. 18 is a perspective view showing a top view of the electrical connector shown in Fig. 2;

Fig. 19 is a perspective view showing a top view of an electrical connector according to another embodiment of the present invention;

Fig. 20 is a perspective view showing one connection terminal when viewed from above in a state shrunk into the housing; and

Fig. 21 shows a schematic perspective view of an electrical connector connected to a printed circuit board in the prior art.

Detailed ways

Although the utility model will be fully described with reference to the accompanying drawings that contain preferred embodiments of the utility model, it should be understood that those of ordinary skill in the art can modify the utility model described herein while obtaining the advantages of the utility model. technical effect. Therefore, it should be understood that the above description is a broad disclosure for those skilled in the art, and its content is not intended to limit the exemplary embodiments described in the present invention.

The electrical connector 100 according to an exemplary embodiment of the present invention can be used in small electronic devices such as mobile phones, various portable players, digital cameras and camcorders, GPS devices, tablet computers, etc., for connecting circuit boards to Another electronic device or battery is electrically connected.

Referring to FIGS. 1 , 2 and 7-10 , an electrical connector 100 according to an exemplary embodiment of the present invention is used to be mounted on a circuit board 400 . The electrical connector 100 includes: a housing 1 and three connection terminals 2 , 3 and 4 . The connection terminals 2, 3 and 4 are all installed in the housing 1, and each connection terminal is formed, for example, by bending an elongated metal sheet, and has a retractable first contact end 21, 31 or 41. A second contact terminal 22, 32 or 42 electrically connected to the circuit board 400, and a main body portion 23, 33 or 43 located between the first contact terminal and the second contact terminal. Each first contact end 21, 31 or 41 is bent and formed in a plane parallel to the plane where the upper surface (or lower surface) of the circuit board 400 is located, so that at each first contact end 21, 31 or 41, The width of the metal sheet is parallel to the thickness direction of the casing 1 .

Referring to Figures 1 and 2, in the electrical connector of the present invention, the first contact ends 21, 31 and 41 of the three connection terminals 2, 3 and 4 are arranged in two rows up and down in the thickness direction of the housing 1, up and down The two rows of first contact ends are arranged offset from each other in the longitudinal direction (length direction) of the housing 1 . For example, the contact end 31 of the first connection terminal located in the upper row is arranged between the first contact ends 21 and 41 of the two second connection terminals located in the lower row in the longitudinal direction of the housing 1 . Although the electrical connector 100 of the above-mentioned embodiment has 3 connecting terminals, the utility model is not limited thereto. It can be understood that the utility model may only include 2 connecting terminals, or include 4, 5, etc. Connecting terminals, and these connecting terminals can be arranged in one or two rows.

As shown in Figures 4-6 and 12-17, in one embodiment, there are three accommodating spaces 12, 13 and 14 insulated from each other corresponding to the three connection terminals 2-4 in the housing 1. A front wall 11 of the body 1 is provided with three first openings 112, 113 and 114 for passing through the first contact ends of the corresponding connection terminals, and a rear wall 15 of the housing 1 is provided with three first openings 112, 113 and 114 for the corresponding connection terminals to pass through. The main body portion is inserted into the second openings 152, 153 and 154.

Referring to Fig. 7-10, each connection terminal 2-4 has a plurality of bent parts, so that the connection terminal can expand and contract along the width direction of the housing 1 by utilizing the elasticity of the metal sheet itself, so that each first contact end 21 , 31 or 41 can be elastically stretched relative to the corresponding first opening 112 , 113 or 114 . Further, each first contact end 21, 31 or 41 has a substantially U-shaped shape, and includes a first arm connected to the main body portion 23, 33 or 43 of the connection terminal 2, 3 or 4 and has a free end 312, 312 or 412 of the second arm 211, 311 or 411, when the first contact end 21, 31 or 41 extends out of the first opening 112, 113 or 114, the free end 312, 312 or 412 is located in the first opening within 112, 113 or 114. That is, no matter whether the first contact end 21, 31 or 41 is in the state extending out of the first opening 112, 113 or 114 or shrinking into the first opening 112, 113 or 114, the free end 312, 312 or 412 is located at the first opening 112 , 113 or 114, so that the free end 312, 312 or 412 will not hinder the expansion and contraction of the first contact end 21, 31 or 41.

In one embodiment of the electrical connector, each receiving space 12, 13 or 14 has approximately the same width as the main body portion 23, 33 or 43 of the corresponding connecting terminal 2, 3 or 4, and each first opening 112, The height of 113 or 114 along the thickness direction of the housing 1 is substantially the same as the width of the first contact end 21 , 31 or 41 of the corresponding connecting terminal 2 , 3 or 4 . In this way, the accommodating space 12, 13 or 14 can be positioned on the corresponding connection terminal 2, 3 or 4 in the thickness direction of the housing, so as to limit the connection terminal 2, 3 or 4 in the thickness direction (up and down direction) of the housing 1. ) to move up.

Further, at least one protruding portion 231, 331, or 431 is provided on each main body portion 23, 33, or 43. Press-fit locating channel 121 , 131 or 141 . Each second contact end 21, 31 or 41 includes an electrical contact 221, 321 or 421 perpendicular to the width direction of the connecting terminal 2, 3 or 4, and is connected between the electrical contact 221, 321 or 421 and the connecting terminal 2, 3 or 4 joints 222, 322 or 422 between the main body parts 23, 33 or 43, each joint 222, 322 or 422 is combined with a corresponding notch 156, 157 or 158 formed on the housing 1 . The positioning channel 121 , 131 or 141 and the notch 156 , 157 or 158 can realize the positioning of the corresponding connecting terminal 2 , 3 or 4 in the front-rear direction and left-right direction in the housing 1 . It can be seen from the schematic diagrams of the connecting terminals 2, 3 and 4 shown in Fig. The positions are different in the front-back direction of the housing 1, and the lengths in the up-down direction (thickness direction) of the joint portion 321 of the connection terminal 3 on the upper row and the joint portions 222 and 422 of the connection terminals 2 and 4 on the lower row are different.

A notch 155 is formed at a portion of the housing 1 corresponding to each electrical contact 221 , 321 or 421 , so that the electrical contact serving as a solder leg can be observed from the upper portion of the housing 1 . The notch 155 can also prevent the electrical contacts 221, 321 or 421 from being welded or empty, and also facilitate the detection of related dimensions.

When assembling the electrical connector 100 of the present utility model, the connecting terminals 2 and 4 located in the lower row can be inserted into the housing 1 through the second openings 152 and 154 provided on the rear wall 15 from the rear of the housing 1 in the accommodating spaces 21 and 41, and the first contact ends 21 and 41 are respectively exposed from the front of the housing 1 through the first openings 112 and 114; at the same time, the protrusions 231 and 431 on the main body parts 23 and 43 are combined into the positioning channels 121 and 141 , and the joints 222 and 422 are inserted into the notches 156 and 158 , and the electrical contacts 221 and 421 are attached to the outside of the bottom wall of the housing 1 . Afterwards, from the rear of the housing 1, the connecting terminals 3 located in the upper row can be inserted into the accommodation space 31 in the housing 1 through the second opening 153 provided on the rear wall 15, and the first contact ends 31 can be passed through The first opening 113 is exposed from the front of the housing 1; at the same time, the protruding portion 331 on the main body portion 33 is integrated into the positioning channel 131, and the coupling portion 322 is inserted into the notch 157, and the electrical contact 321 is attached to the housing. outside the bottom wall of body 1.

FIG. 18 is a perspective view showing a top view of the electrical connector 100 of the present invention; As shown in FIGS. 18 and 20 , when the electrical connector 100 is electrically connected to, for example, a battery, the battery will exert a pressing force on the first contact ends 21, 31 and 41 exposed from the housing 1, so that the first contact ends 21, 31 and 41 elastically shrink into the casing 1 through the first openings 112 , 113 and 114 , so as to maintain a good electrical connection between the first contact end and the electrical contacts of the battery. According to the electrical connector of the present invention, when the first contact end 21, 31 or 41 of the connection terminal is compressed, the displacement of the contact area in the left and right direction is very small.

According to the electrical connector of another embodiment of the present invention, an auxiliary notch is formed on the housing 1. The protrusions of the connection terminals are press-fitted into the positioning channels. In this way, the accommodating space 13 located at the upper part can selectively accommodate two types of connection terminals according to needs, and the outer contours of the two types of connection terminals are substantially the same, except that the extending directions of the joint parts are just opposite. For example, the connecting terminal 3 in FIG. 18 is replaced by the connecting terminal 3' in FIG. The distance in the direction (longitudinal direction), so as to meet the needs of different external electronic devices or batteries.

According to another embodiment of the present invention, as shown in FIG. 1 , an electrical connector assembly is provided, including: a circuit board 400; the electrical connector 100 described in the various embodiments above; and two fixing members 5 ( Referring to FIG. 11 ), the fixing member 5 passes through the housing 1 to fix the electrical connector 100 to the circuit board 400 . As shown in FIG. 11 , the fixing member 5 has a substantially T-shape and can pass through a corresponding through hole on the housing 1 and be fixed to the circuit board 400 by welding, for example.

According to the electrical connector and the electrical connector assembly of the above-mentioned various embodiments of the utility model, since each first contact end is formed by bending in a plane parallel to the plane where the upper surface of the circuit board At the first contact end where the battery is electrically connected, the width of the metal sheet forming the connection terminal is parallel to the height (or thickness) direction of the housing, so that the larger-sized portion of the first contact end is arranged along the left-right direction (length direction) of the housing , the deformation space of the connecting terminal extends in the left and right directions, thereby reducing the height of the housing on the circuit board, thereby reducing the height of the entire electrical connector. Moreover, the distance between the first contact ends can be adjusted as required. Furthermore, most of the connecting terminals placed in the upper and lower rows are identical in structure, and can be produced with a set of molds, which reduces the production cost.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Under the circumstances, free combination can be carried out, so as to realize more kinds of electrical connectors and connector assemblies on the basis of solving the technical problems of the utility model.

After describing the preferred embodiments of the present utility model in detail, those skilled in the art can clearly understand that various changes and changes can be made without departing from the scope and spirit of the appended claims, and the utility model also Implementation is not limited to the exemplary embodiments set forth in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any element references in the claims should not be construed as limiting the scope of the present invention.

Claims (12)

1. An electrical connector for mounting on a circuit board, said electrical connector comprising: a shell; and A plurality of connecting terminals installed in the housing, each connecting terminal has a retractable first contact end exposing the housing, a second contact end electrically connected to the circuit board, and a second contact end located at the first a body portion between the contact end and the second contact end, It is characterized in that each of the first contact ends is bent and formed in a plane parallel to the plane where the upper surface of the circuit board is located. the 2. The electrical connector according to claim 1, wherein the first contact ends of the plurality of connection terminals are arranged in two rows up and down in the height direction of the housing, and the first contact ends of the two rows up and down The contact ends are arranged offset from each other in the longitudinal direction of the housing. the 3. The electrical connector according to claim 2, characterized in that, it comprises 3 said connection terminals, and the contact end of one connection terminal located in the upper row is arranged in the longitudinal direction of the housing in the lower row. between the contact ends of the two connecting terminals. the 4. The electrical connector according to claim 3, wherein there are three accommodating spaces respectively corresponding to the three connection terminals in the housing and insulated from each other, and on a front wall of the housing A first opening is provided for passing the first contact end of the corresponding connecting terminal, and a second opening is provided on a rear wall (15) of the housing for inserting the main body of the corresponding connecting terminal. the 5. The electrical connector according to claim 4, wherein each of the connection terminals has a plurality of bent portions, so that each of the first contact ends can elastically expand and contract relative to the corresponding opening. the 6. The electrical connector as claimed in claim 4, wherein each of said first contact ends has a substantially U-shaped shape and includes a first arm connected to the main body portion of the connecting terminal and has a free The second arm of the end, when the first contact end extends out of the corresponding first opening, the free end is located in the first opening. the 7. The electrical connector according to claim 4, wherein the width of each of the accommodating spaces is approximately the same as that of the main body of the connecting terminal, and the height of each of the first openings is the same as that of the connecting terminal. The widths of the first contact ends of the terminals are substantially the same. the 8. The electrical connector according to claim 4, wherein at least one protruding portion is provided on each of the main body portions, and a wall of each of the accommodating spaces is formed to press against the corresponding protruding portion. Tight fit positioning channel. the 9. The electrical connector according to claim 4, wherein each of the second contact ends comprises an electrical contact perpendicular to the width direction of the connecting terminal, and is connected between the electrical contact and the joints between the main body parts of the connection terminals, each of the joints is jointed with a corresponding notch formed on the housing. the 10. The electrical connector as claimed in claim 8, wherein an auxiliary notch is formed on the housing, and is formed on both walls of the accommodating space for accommodating the connecting terminals located in the upper row in line with the said housing. The positioning channel for the compression fit of the above-mentioned protrusions. the 11. The electrical connector according to claim 10, wherein a notch is formed on a portion of the housing corresponding to each of the electrical contacts. the 12. An electrical connector assembly, characterized in that it comprises: circuit board; An electrical connector as claimed in any one of the preceding claims 1-11; and At least one fixing member passes through the housing to fix the electrical connector to the circuit board. the

Images