Secondary injection molding pin header connector

Abstract

The utility model discloses a secondary injection molding pin header connector, which comprises two connecting pieces, the outer sides of the connecting pieces are provided with shells, a plurality of pin headers are inserted between the two connecting pieces, the connecting pieces are provided with insertion holes for the pin headers to pass through in a penetrating manner, the inner side walls of the insertion holes are symmetrically provided with bulges, and the bulges are arranged on the inner side walls of the insertion holes. A plurality of connecting pieces are arranged on the pin header, a plurality of chamfers are arranged on the connecting pieces, a plurality of fixing pieces are arranged on the sides, close to the chamfers, of the connecting pieces, chamfers are arranged on the edges of the outer sides of the inserting holes, and positioning blocks are arranged on the two sides of the connecting pieces. The connecting piece and the pin header are placed in the mold for secondary injection molding, the operation difficulty is reduced, the pin header can be prevented from shifting in the secondary injection molding process, the product quality is improved, meanwhile, the contact area with the shell can be increased through the fixing piece and the positioning block, and the shell can be prevented from being damaged when the shell is subjected to injection molding on the outer side of the connecting piece. And the shell and the connecting piece are combined more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a secondary injection molded pin header connector. Background Art

[0002] Pin header connector is a type of connector widely used in electronic devices. It mainly consists of a row of neatly arranged metal pins. These pins can be inserted or soldered into the holes on the circuit board to achieve the connection between electronic components, cables or wiring harnesses and the circuit board. The main function of the pin header connector is to build a bridge between blocked or isolated circuits within the circuit, and to take on the task of current or signal transmission.

[0003] During the production of existing pin header connectors, the pins need to be placed in a mold for injection molding. However, the number of pins is large and the size is small, making it difficult to pick up and place them, and the operation is difficult. In addition, due to the small size of the pins, it is difficult for the mold to effectively limit the pins during the injection molding process. Therefore, the pins are prone to deviation, affecting the quality of the product. Utility Model Content

[0004] The purpose of the present utility model is to provide a secondary injection molded pin header connector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a two-shot injection molded pin connector, comprising two connecting parts, a shell being provided on the outer side of the connecting parts, a plurality of pins being inserted between the two connecting parts, a socket for the pins to pass through being penetrated by the connecting parts, protrusions being symmetrically provided on the inner side walls of the sockets, a plurality of fixing parts being provided on the side of the connecting part close to the chamfer, a chamfer being provided on the outer edge of the socket, and positioning blocks being provided on both sides of the connecting part.

[0006] As a preferred solution of the present invention, the positioning block, the fixing piece and the connecting piece are an integral injection-molded structure.

[0007] As a preferred solution of the present invention, the shell is secondary injection molded on the outside of the pin header and the connector.

[0008] As a preferred solution of the present invention, the fixing member is an umbrella-shaped structure.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can not only fix multiple pin headers and the connector by providing the connector and the protrusion, and then put the connector and the pin header into the mold for secondary injection molding, which reduces the difficulty of operation, but also prevents the pin header from being offset during the secondary injection molding process, thereby improving product quality. At the same time, the provided fixing members and positioning blocks can increase the contact area with the shell, so that when the shell is injection molded on the outside of the connector, the shell and the connector are more firmly combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 It is a structural diagram of the bottom of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the pin header and connector of the utility model;

[0013] Figure 4 This is a structural diagram of the connecting piece of the utility model.

[0014] In the figure: 1. Housing; 2. Pin header; 3. Connector; 4. Fixing piece; 5. Positioning block; 6. Chamfer; 7. Socket; 8. Protrusion. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figures 1 to 4The utility model provides a technical solution: a two-stage injection molding pin connector, comprising two connecting pieces 3, the connecting piece 3 can fix the pin 2, not only by fixing the pin 2 and the connecting piece 3, and then putting them into the mold for secondary injection molding, the operation difficulty is reduced, and because the connecting piece 3 is large in size, the mold can play a good limiting role on the connecting piece 3, thereby preventing the pin 2 from deviating during the secondary injection molding process, thereby improving product quality, a shell 1 is provided on the outside of the connecting piece 3, a plurality of pins 2 are inserted between the two connecting pieces 3, and a hole for the connecting piece 3 is passed through. The pin 2 passes through the socket 7, and the inner side wall of the socket 7 is symmetrically provided with protrusions 8. The protrusions 8 make the connection between the pin 2 and the connector 3 more secure and prevent the pin 2 and the connector 3 from offsetting. A plurality of fixing members 4 are provided on the side of the connector 3 close to the chamfer 6, and the outer edge of the socket 7 is provided with a chamfer 6. The chamfer 6 is used to guide the pin 2, making it easier to insert the pin 2 into the socket 7. Positioning blocks 5 are provided on both sides of the connector 3. Both the fixing members 4 and the positioning blocks 5 can increase the contact area with the shell 1, so that when the shell 1 is injection molded on the outside of the connector 3, the shell 1 and the connector 3 are more firmly combined.

[0017] The positioning block 5, the fixing member 4 and the connecting member 3 are an integral injection-molded structure.

[0018] The housing 1 is secondary injection molded on the outside of the pin header 2 and the connector 3 .

[0019] The fixing member 4 is an umbrella-shaped structure, which enables the fixing member 4 to be better fitted with the housing 1 , thereby ensuring that the connection member 3 and the housing 1 are more firmly combined.

[0020] Specifically, during production, the connector 3 is first injection molded, and then multiple pin headers 2 are inserted into the socket 7 in sequence to fix the pin headers 2 and the connector 3. Then, the pin headers 2 and the connector 3 are placed in the mold, and the shell 1 is injection molded for the second time on the outside of the pin headers 2 and the connector 3 to complete the production.

[0021] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0023] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-shot injection molded pin connector, characterized by: The invention comprises two connecting members (3), wherein a shell (1) is provided on the outer side of the connecting member (3), a plurality of pins (2) are inserted between the two connecting members (3), a socket (7) for the pins (2) to pass through is provided on the connecting member (3), and protrusions (8) are symmetrically provided on the inner side wall of the socket (7), a plurality of fixing members (4) are provided on the side of the connecting member (3) close to the chamfer (6), a chamfer (6) is provided on the outer edge of the socket (7), and positioning blocks (5) are provided on both sides of the connecting member (3).

2. The two-shot injection molded pin header connector according to claim 1, characterized in that: The positioning block (5), the fixing member (4) and the connecting member (3) are an integral injection-molded structure.

3. The two-shot injection molded pin header connector according to claim 1, characterized in that: The housing (1) is secondary injection-molded on the outside of the pin header (2) and the connector (3).

4. The two-shot injection molded pin header connector according to claim 1, characterized in that: The fixing member (4) is an umbrella-shaped structure.

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