TWI601336B - Steckverbindung zur elektrischen direktkontaktierung einer leiterplatte - Google Patents

Description

Plug connection means for direct electrical contact with a circuit board (1)

The present invention relates to a plug connector for direct electrical contact with a contact surface on a circuit board of claim 1.

The control device is mostly composed of a circuit board (electronic components placed on the circuit board) and a housing device. In the motor control device, a blade edge is generally mounted on the circuit board to cause electrical conduction between the cable bundle plug and the circuit board. The connection is such that the knife ribs create an additional component when the control device is installed. There is also a so-called "direct electrical contact" in which the knife ribs are omitted and the individual poles of the cable bundle are directly in contact with the circuit board. To this end, an electrical interface ("land") is provided on the circuit board, the electrical contact surface being contacted by the contact elements and the contact elements being plugged into the cable bundle plug.

Figures 1a, 1b show two conventional plug connectors (101) for directly electrically connecting the contact faces (102) on a circuit board (103). A plug-in receptacle (104) is provided on the circuit board (103), and the circuit board (103) projects into the plug-in direction. A plug (105) (such as a cable bundle plug) is inserted into the plug receptacle (104). The plug has a two-part contact carrier (106a) (106b) having a spring contact (107) for the circuit The contact faces (102) of the plates (103) are in direct electrical contact, and the halves (106a) (106b) of the two contact carriers are pivotally connected to each other at (120). The electrical conductors (108) of the spring contacts (107) pass through a net seal (109) which seals the outside of the plug receptacle (104). In addition, a compression is provided in the plug-in housing (104) A spring (110) that acts on the contact carrier half (106a) (106b), thereby pressing the spring contact (107) against the contact surface (102) of the circuit board (103). A compression spring device (110) (which is formed by a partial spring in Fig. 1a and two separate springs in Fig. 1b) is thus integrated into the two-part contact carrier (106) .

In this regard, the object of the invention is to further simplify the plug connectors of the above type for direct electrical contact with a circuit board.

This object is achieved according to the invention by means of a plug connector for direct electrical contact of a circuit board with the features of claim 1 of the patent application.

According to the invention, the contact element is no longer provided with a contact spring, so that the contact element can be simplified, and the toughness can be improved, and the manufacturing cost of the contact element can be reduced, since the contact spring is omitted, so far The dependency relationship between the point normal force and the contact spring is reduced, because especially in the case of the miniaturized contact element, as the degree of miniaturization increases, it is more difficult to achieve the desired contact normal force. According to the invention, the joint normal force acts on the contact elements individually or indirectly via the movable abutment elements of the contact carrier by means of a compression spring. In this case, the compression spring can advantageously be designed as a separate spring or can be formed using a partial spring ridge. Since the error of the circuit board can be offset by the compression spring of the individual action at this time, the contact carrier can be no longer made into a two-part type, and the part can be made according to the invention, which further reduces the cost.

The movable yoke element of the contact carrier can also serve as the first contact of the contact The function is to hold the contact element inserted into the contact carrier in its insertion direction.

Other advantages and advantageous designs of the subject matter of the invention can be found in the description.

The invention is exemplified below using several embodiments illustrated in the drawings.

The plug connector (1) shown in Figures 2 to 4 is used for direct electrical contact with the contact surface ("land") (2) on a circuit board (3), wherein the contact surface (2) is located at Both sides of the board (3).

The circuit board (3) is provided with a plug-in receiving portion (4) into which the circuit board (3) protrudes in the plugging direction. A plug (for example a cable harness plug) (5) is inserted into the plug receptacle (4), which has a contact carrier (6) with a contact element (7) for contact with the circuit board (3) Face (2) direct electrical contact. The electrical conductor (8) of the contact element (7) passes through a net seal (9) which seals the plug receptacle (4) to the outside. Furthermore, a plug spring (10) is provided in the plug-in receptacle (4) which presses the contact element (7) against the contact surface (2) of the circuit board (3).

As shown in Fig. 5, each of the contact elements (7) of the compression spring device (10) of the contact carrier (6) has its own compression spring (11). The contact carrier (6) has a supporting element (13) for each of the contact elements (7), which can be perpendicular to the circuit board (3) [double arrow (12)], which is directly disposed on the contact element (7) and Between each of the compression springs (11), the contact element (7) is pressed against the contact surface (2) of the circuit board (3). The compression springs (11) can each be designed in the form of separate individual springs or can be integrally formed by a spring ridge (which has a free spring end), the contact carrier (6) The traversable reclining element (13) is formed, for example, by a housing tongue of the contact carrier, which can be deflected in the transverse direction, and the transversely contigable element (13) can additionally The function of the initial engagement of the contacts is to hold the contact elements (7) inserted into the contact carrier (6) in the contact carrier (6) against their insertion direction.

In Fig. 2, the compression spring (11) is fixed to the bottom of the plug-in receptacle 4) and its free spring end extends up to almost the mesh seal (9). These compression springs (11) facing the net seal (9) can also be fixed to the side of the plug-in receptacle (4) in an alternative manner. In Fig. 3, the compression spring (11) is fixed to the side of the plug-in receptacle (4) and extends with its free spring end in the direction of the bottom of the plug-in receptacle (4).

In Fig. 4, the compression spring (11) is designed in a U-shape and is fixed to the side of the plug-in receptacle (4) such that the free end extends towards the bottom of the plug-in receptacle (4).

The contact carrier (6) can be made in part or in two parts, as described above in connection with Figure 1.

In another embodiment shown in Fig. 6, the compression springs (11) each directly rest on their contact elements (7), where the compression springs (11) can also be counted as separate individual springs, or by means of an integral type The spring ridge (which is formed of a non-conductive or conductive material). In the latter case, the compression springs (11) are each placed on the contact element (7) with an electrically insulating coating (14) to prevent electrical connection of the contact elements (7). In another mode, when the spring ridge is formed of a conductive material, the contact member (7) itself may have an insulating material (for example, an electrical insulating coating) at a position where it contacts the pressing springs (11). Prevent electrical connection of the contact element (7).

The pressing element (11) can also be different from that shown in Figures 2 to 4 and Figure 6 The spring end rests on the wall of the plug-in receptacle (4), for example for strength support. In the other direction, the spring ends of the spring ridges can be connected to each other again ("closed spring ridge").

(1)‧‧‧ Plug connectors

(2) ‧‧‧ joint surface (land)

(3) ‧‧‧Circuit board

(4)‧‧‧Plug housing

(5)‧‧‧ Plug

(6)‧‧‧Contact carrier

(7)‧‧‧Contact components

(8)‧‧‧Electrical wires

(9) ‧‧ ‧ net seals

(10) ‧‧‧Compression spring device

(11)‧‧‧Compression spring

(12)‧‧‧Double arrows (horizontal two-way)

(13) ‧‧‧Relying components

(101)‧‧‧ (Chinese) plug connectors

(102)‧‧‧Contact surface

(103)‧‧‧ boards

(104)‧‧‧Plug housing

(105)‧‧‧ Plug

(106a) ‧‧‧Contact carrier half

(106b) ‧‧‧Contact carrier half

(107)‧‧‧Spring contacts

(108)‧‧‧Electrical wires

(109) ‧‧ ‧ net seals

(110)‧‧‧Compression spring device

(120) ‧‧‧ pivot position

Figures 1a and 1b are two plug connectors for direct electrical contact with a circuit board in accordance with the prior art; Figures 2 through 4 are various types of plug connectors of the present invention for direct electrical contact with a circuit board. Different embodiments; FIG. 5 is a cross-sectional view of the plug connector shown in FIGS. 2 to 4 taken along line VV of FIG. 2; FIG. 6 is another embodiment of the plug connector of the present invention for direct electrical contact with a circuit board. Example.

(1)‧‧‧ Plug connectors

(2) ‧‧‧ joint surface (land)

(3) ‧‧‧Circuit board

(4)‧‧‧Plug housing

(5)‧‧‧ Plug

(6)‧‧‧Contact carrier

(7)‧‧‧Contact components

(8)‧‧‧Electrical wires

(9) ‧‧ ‧ net seals

(10) ‧‧‧Compression spring device

(11)‧‧‧Compression spring

(13) ‧‧‧Relying components

Claims (13)

A plug connector (1) for directly electrically contacting a circuit board for directly contacting a contact surface on a circuit board (3), having: a plug receiving portion (4) disposed on the circuit board (3) upper, the circuit board (3) protrudes into the plug-in receiving portion; a plug (5) can be inserted into the plug-in receiving portion (4), which has a contact carrier (6) having a contact member (7), in direct electrical contact with the contact surface (2) of the circuit board (3), and a compression spring device (10) to press the contact element (7) to the contact of the circuit board (3) On the face (2); characterized in that the compression spring device (10) is arranged in the plug-in receptacle (4), and the compression spring device (10) is for the contact elements of the contact carrier (6) ( 7) Each has its own compression spring (11). The plug connector of claim 1, wherein: the contact carrier (6) has a rest element (13) for each of the contact elements (7), which is movable perpendicular to the circuit board (3), the support The element (13) is disposed between the contact element (7) and each of the compression springs (11) to press the contact element (7) against the contact surface (2) of the circuit board (3). The plug connector of claim 1 or 2, wherein the compression springs (11) are each designed in the form of individual springs. The plug connector of claim 1 or 2, wherein the compression spring (11) is formed by a one-piece spring. The plug connector of claim 1 wherein the compression springs (11) each rest directly against their contact elements (7). For example, the plug connector of claim 5, wherein: The compression springs (11) are each designed in the form of individual springs. The plug connector of claim 5, wherein the compression spring (11) is formed by a one-piece, open or closed spring ridge, wherein the compression springs (11) are electrically insulated from each other, and/or The compression spring is electrically insulated from its contact element (7). The plug connector of claim 7, wherein the spring ridge is formed of a non-conductive material. The plug connector of claim 7, wherein: the spring ridge is formed of a conductive material and the compression spring (11) is resting on the contact member (7) with an electrically insulating region (14), or The compression springs (11) each rest against an electrically insulating region of the contact element (7). The plug connector of claim 1 or 2, wherein the compression spring (4) is fixed in the plug receptacle (4). The plug connector of claim 1 or 2, wherein the contact carrier (6) is formed in part or in two parts. The plug connector of claim 2, wherein the movable rest element (13) is designed in the form of a deflectable housing tongue of the contact carrier (6). A plug connector according to claim 1 or 2, wherein the compression spring (11) extends with its free spring end in the direction of the bottom of the receiving receptacle (4) or in the opposite direction.