Piercing type hosting connection structure and connector

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a puncture type hosting connection structure and a connector, and the connection structure comprises a housing main body and a terminal. The terminal comprises a welding base and a piercing contact piece arranged above the welding base, the lower portion of the welding base is welded and fixed to the PCB, and a wire clamping groove is formed in the middle of the piercing contact piece; a threading hole is formed in one side of the shell main body; the first surface of the housing main body is provided with an insertion port, and the insertion port is communicated with the threading hole. The shell main body is arranged on the PCB in a crimping manner through the plurality of terminals, the piercing contact element is inserted into the insertion port to form a fixed structure, and the wire clamping groove is clamped with the wire harness and pierces the wire skin of the wire harness; according to the utility model, the arrangement of a plate end connecting structure is saved, the number of parts is reduced, the connector is simpler to install and fix, and the wire harness is not easy to fall off when shaking.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a piercing housing connection structure and a connector. Background Technology

[0002] Wire-to-board connectors play a crucial role in modern electronic applications, quickly connecting wire harnesses to circuit boards to enable electrical conduction. These connectors primarily consist of two parts: the board-side connection structure and the wire-side connection structure. The board-side connection structure typically includes a set of contacts to insert the wire-side connection structure, thus establishing an electrical connection. The wire-side connection structure itself usually comprises a housing and a series of pins mounted on the housing. The wire harness is mounted within the housing via terminals, and these pins serve as connection points for the wire harness, enabling circuit continuity.

[0003] Existing wire-to-board connectors require the use of both board-end and wire-end connection structures during installation. The wire harness must first be crimped into the terminals, and then the wire harness with the terminals installed must be assembled into the wire-end connection mechanism. In particular, the installation process is more cumbersome when encountering multi-pin wire harnesses and wire-end connection structures. The anchoring blades are prone to misalignment, and the crimping between the wire harness and the wire-end connection structure is not firm. Additional glue application is required for fixation; otherwise, the wire harness may easily fall off when it shakes. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a piercing housing connection structure and a connector to solve the problems of the existing wire-to-board connectors, which are cumbersome to install when encountering multi-pin wire harnesses and wire end connection structures, and the anchoring blades are prone to misalignment. The crimping of the wire harness and wire end connection structure is not firm and requires additional glue for fixation. Otherwise, the wire harness is prone to falling off when it shakes.

[0005] One embodiment of this utility model provides a piercing housing connection structure, with the connection set on a PCB board, including: a housing body and terminals;

[0006] The terminal includes a welding base and a piercing contact disposed above the welding base. The lower part of the welding base is welded and fixed to the PCB board, and the piercing contact is provided with a wire-holding groove in the middle.

[0007] A wire-passing hole is provided on one side of the outer shell body for threading wires; an insertion port is provided on the first surface of the outer shell body, and the insertion port extends through the wire-passing hole.

[0008] The outer casing is crimped onto the PCB board via several terminals. The piercing contact is inserted into the insertion port to form a fixing structure. The wire clamping groove clamps the wire harness and pierces the wire sheath of the wire harness so that the piercing contact abuts against the conductor of the wire harness.

[0009] In one embodiment of this utility model, two puncture contact elements are provided, and the two puncture contact elements are symmetrically arranged on both sides of the welding base.

[0010] In one embodiment of this utility model, the wire-locking groove is a U-shaped groove, and the piercing contact forms two clamping arms at the opening of the wire-locking groove. A groove is provided at the connection between the clamping arms and the welding base.

[0011] In one embodiment of this utility model, the end of the clamping arm is symmetrically provided with guide slopes for guiding the wire harness into the wire clamping groove.

[0012] In one embodiment of this utility model, the inner side of the clamping arm is configured as a cutting edge, and the cutting edge angle of the cutting edge is 30-60 degrees.

[0013] In one embodiment of this utility model, the first surface is provided with a groove, and the insertion port is located at the bottom of the groove.

[0014] In one embodiment of this utility model, the second surface of the outer shell body is further provided with an ejector hole, which corresponds to the vertical projection of the insertion port.

[0015] In one embodiment of this utility model, the insertion port has two ejection holes, which extend to both sides of the insertion port.

[0016] In one embodiment of this utility model, the second surface of the outer shell body is further provided with an observation window, which is located at the end of the wire hole.

[0017] One embodiment of this utility model also discloses a connector, including an SMT board and a piercing housing connection structure as described in any of the above embodiments;

[0018] The piercing housing connection structure is welded to the upper surface of the SMT board;

[0019] The lower surface of the SMT board is soldered and fixed to the PCB board.

[0020] The piercing housing connection structure and connector provided by this utility model can achieve the following technical effects:

[0021] 1. By soldering the terminals to the PCB board, then inserting the wire harness into the housing body and pressing the housing body towards the terminals, the piercing contact is inserted into the insertion port to form a fixing structure, effectively fixing the terminals to the housing body, and causing the terminals to pierce the wire harness insulation, achieving conductor contact between the terminals and the wire harness to form a predetermined electrical circuit. Compared with the prior art, this utility model saves the need for setting up a board-end connection structure, effectively reducing the number of parts, making the installation and fixing of the connector simpler, eliminating the need for re-applying glue, and preventing the wire harness from easily falling off when it shakes.

[0022] 2. By providing a wire-clamping groove on the piercing contact, forming a sharp corner with a guide bevel at the end of the wire-clamping groove, and setting the inner side of the clamping arm of the wire-clamping groove as a cutting edge, the wire harness can be better clamped and fixed by the wire-clamping groove, while effectively piercing the wire sheath of the wire harness; and, a groove is provided at the connection between the clamping arm and the welding base, so that the clamping arm can deform to both sides when the wire harness is inserted into the wire-clamping groove, thereby forming a tensioning and fixing structure in the wire hole, and preventing the clamping arm from clamping too tightly and cutting the conductor in the wire harness.

[0023] 3. By providing an ejection hole and an observation window on the second surface of the housing body, the ejection hole facilitates the ejection of the wire harness from the wire clamping groove through ejector pins or other ejector components, thereby releasing the fixing structure between the terminal and the housing body. At the same time, the observation window facilitates the observation of whether the wire harness is properly connected. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural diagram of the outer shell body of this utility model from a first surface perspective;

[0026] Figure 2 A three-dimensional structural diagram of the outer shell body of this utility model from a second perspective;

[0027] Figure 3 A cross-sectional structural diagram showing the second surface of the outer shell of this utility model from a perspective;

[0028] Figure 4 A three-dimensional structural diagram of the terminal of this utility model;

[0029] Figure 5A schematic diagram showing the mating structure between the outer shell body and the terminals of this utility model;

[0030] Figure 6 A schematic diagram showing the exploded unfolded structure of the connector of this utility model;

[0031] Figure 7 This is a three-dimensional structural diagram of the connector of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1-Outer shell body; 11-Wire hole; 12-Insert port; 13-Counterpart; 14-Ejector hole; 15-Observation window; A-First surface; B-Second surface;

[0034] 2-Terminal; 21-Welding base; 22-Piercing contact; 23-Wire clamping groove; 24-Clamping arm; 25-Groove; 26-Guide bevel; 27-Cutting edge;

[0035] 3-PCB board; 4-Wire harness; 5-SMT assembly board. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Technical Name Description

[0038] In the connector industry, "housing" refers to the outer shell of a connector. It provides physical protection for the connector's internal components (such as contacts and terminals) and ensures that the connector can be securely connected to the device.

[0039] Example 1

[0040] Please refer to Figures 1-5 One embodiment of this utility model provides a piercing housing connection structure, which is connected and disposed on a PCB board 3, including: a housing body 1 and a terminal 2;

[0041] The terminal 2 includes a welding base 21 and a piercing contact 22 disposed above the welding base 21. The lower part of the welding base 21 is welded and fixed to the PCB board 3. A wire-locking groove 23 is provided in the middle of the piercing contact 22.

[0042] A wire hole 11 is provided on one side of the outer shell body 1 for threading wire harness 4; an insertion port 12 is provided on the first surface A of the outer shell body 1, and the insertion port 12 extends through the wire hole 11.

[0043] The outer shell body 1 is crimped onto the PCB board 3 by a plurality of terminals 2. The piercing contact 22 is inserted into the insertion port 12 to form a fixed structure. The wire clamping groove 23 clamps the wire harness 4 and pierces the wire insulation of the wire harness 4 so that the piercing contact 22 abuts against the conductor of the wire harness 4.

[0044] Understandably, in this embodiment, the terminal 2 includes a welding base 21, which can be used to weld and fix the terminal 2 onto the PCB board 3. Then, the wire harness 4 is inserted into the housing body 1 and the housing body 1 is pressed towards the terminal 2. The piercing contact 22 is inserted into the insertion port 12 to form a fixing structure, which effectively fixes the terminal 2 to the housing body 1. This ensures that the wire harness 4 will not come out from the connection between the terminal 2 and the housing body 1 when it is pressed by the terminal 2, thus improving the stability of the connection.

[0045] At the same time, terminal 2 pierces the wire sheath of the wire harness 4, so that terminal 2 and the conductor of wire harness 4 come into contact and form a predetermined electrical circuit. Compared with the prior art, this utility model saves the need to set up a board end connection structure, effectively reduces the number of parts, makes the installation and fixing of the connector simpler, eliminates the need for re-applying glue, and makes it less likely to fall off when the wire harness 4 shakes.

[0046] Example 2

[0047] Please refer to Figures 4-7 In one embodiment of this utility model, two puncture contact elements 22 are provided, and the two puncture contact elements 22 are symmetrically arranged on both sides of the welding base 21.

[0048] The wire-locking groove 23 is a U-shaped groove, and the piercing contact 22 forms two clamping arms 24 at the opening of the wire-locking groove 23. The clamping arms 24 are provided with a groove 25 at the connection between them and the welding base 21.

[0049] The end of the clamping arm 24 is symmetrically provided with a guide slope 26 for guiding the wire harness 4 into the wire clamping groove 23.

[0050] The inner side of the clamping arm 24 is configured as a cutting edge 27, and the cutting edge angle of the cutting edge 27 is 30-60 degrees.

[0051] Understandably, in this embodiment, a terminal 2 is provided with two piercing contacts 22. The two piercing contacts 22 are symmetrically arranged on both sides of the welding base 21 to form a U-shaped structure. By providing wire-locking grooves 23 on the piercing contacts 22, when the wire harness 4 is fixed by the terminal 2, two fixing nodes can be formed along the length direction of the wire harness 4, making the fixing effect more reliable.

[0052] Furthermore, a groove 25 is provided at the connection between the clamping arm 24 and the welding base 21, so that the clamping arm 24 can deform to both sides when the wire harness 4 is inserted into the wire clamping groove 23, thereby forming a tensioning and fixing structure in the wire hole 11, and preventing the clamping arm 24 from clamping too tightly and cutting the conductor in the wire harness 4.

[0053] Meanwhile, by forming a sharp corner with a guide slope 26 at the end of the wire clamping groove 23 and setting the inner side of the clamping arm 24 of the wire clamping groove 23 as a cutting blade 27, the wire harness 4 can be better clamped and fixed by the wire clamping groove 23, effectively piercing the wire sheath of the wire harness 4.

[0054] Example 3

[0055] Please refer to Figures 1-3 , Figure 5 In one embodiment of the present invention, the first surface A is provided with a groove 13, and the insertion port 12 is provided at the bottom of the groove 13.

[0056] The second surface B of the outer shell body 1 is also provided with an ejection hole 14, which corresponds to the vertical projection of the insertion port 12.

[0057] The insertion port 12 corresponds to two ejection holes 14, which extend to both sides of the insertion port 12.

[0058] The second surface B of the outer casing 1 is also provided with an observation window 15, which is located at the end of the wire hole 11.

[0059] Understandably, in this embodiment, the insertion port 12 is located at the bottom of the groove 13 on the first surface A. When the outer shell body 1 and the terminal 2 are pressed together, the welding base 21 of the terminal 2 is completely submerged in the groove 13, so that the second surface B of the outer shell body 1 is in contact with the surface of the PCB, effectively reducing the angle of wobbling of the outer shell body 1 when subjected to force.

[0060] Furthermore, by providing an ejection hole 14 and an observation window 15 on the second surface B of the outer casing body 1, the ejection hole 14 facilitates the ejection of the wire harness 4 from the wire clamping groove 23 through ejection pins or other ejection components, thereby releasing the fixing structure between the terminal 2 and the outer casing body 1. Meanwhile, the observation window 15 is located at the end of the wire hole 11, and the observation window 15 facilitates the observation of whether the wire harness 4 is properly abutted.

[0061] In one implementation scenario of this embodiment, the second surface B of the outer shell body 1 is a plane, which facilitates the fixed connection of the outer shell body 1 and the terminal 2 by plane pressing. At the same time, it makes the tooling required for pressing simple in structure, easy to learn and easy to maintain.

[0062] Example 4

[0063] Please refer to Figures 1-7 In one embodiment of this utility model, a connector is also provided, including an SMT board 5 and a piercing housing connection structure as described in any of the above embodiments.

[0064] The piercing housing connection structure is welded to the upper surface of the SMT board 5;

[0065] The lower surface of the SMT mounting board 5 is welded and fixed to the PCB board 3.

[0066] Understandably, the piercing housing connection structure provides a simple and effective electrical connection method. By piercing the contact 22, it directly contacts the conductor of the wire harness 4 without the need for additional soldering or wiring operations. The design of the wire clamping groove 23 can ensure the stable connection of the wire harness 4 and the reliability of the electrical contact.

[0067] In this embodiment, the design of the SMT mounting board 5 allows the connector to be compactly mounted on the PCB board 3, saving space. At the same time, the double-sided soldering of the SMT mounting board 5 provides a stronger mechanical connection, reducing the risk of connection loosening due to vibration or impact.

[0068] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A piercing housing connection structure, disposed on a PCB board, characterized in that, include: Housing body and terminals; The terminal includes a welding base and a piercing contact disposed above the welding base. The lower part of the welding base is welded and fixed to the PCB board, and the piercing contact is provided with a wire-holding groove in the middle. A wire-passing hole is provided on one side of the outer shell body for threading wires; an insertion port is provided on the first surface of the outer shell body, and the insertion port extends through the wire-passing hole. The outer casing is crimped onto the PCB board via several terminals. The piercing contact is inserted into the insertion port to form a fixing structure. The wire clamping groove clamps the wire harness and pierces the wire sheath of the wire harness so that the piercing contact abuts against the conductor of the wire harness.

2. The piercing housing connection structure as described in claim 1, characterized in that, Two puncture contacts are provided, and the two puncture contacts are symmetrically arranged on both sides of the welding base.

3. The piercing housing connection structure as described in claim 2, characterized in that, The wire-clamping groove is a U-shaped groove, and the piercing contact forms two clamping arms at the opening of the wire-clamping groove. A groove is provided at the connection between the clamping arms and the welding base.

4. The piercing housing connection structure as described in claim 3, characterized in that, The ends of the clamping arms are symmetrically provided with guide slopes to guide the wire harness into the wire clamping groove.

5. The piercing housing connection structure as described in claim 3, characterized in that, The inner side of the clamping arm is configured as a cutting edge, and the cutting edge angle of the cutting edge is 30-60 degrees.

6. The piercing housing connection structure as described in claim 1, characterized in that, The first surface is provided with a groove, and the insertion port is located at the bottom of the groove.

7. The piercing housing connection structure as described in claim 1, characterized in that, The second surface of the outer casing body is also provided with an ejector hole, which corresponds to the vertical projection of the insertion port.

8. The piercing housing connection structure as described in claim 7, characterized in that, The insertion port has two ejection holes, which extend to both sides of the insertion port.

9. The piercing housing connection structure as described in claim 1, characterized in that, The second surface of the outer casing is also provided with an observation window, which is located at the end of the wire hole.

10. A connector, applied to a PCB board, characterized in that, Includes SMT board and the piercing housing connection structure as described in any one of claims 1-9; The piercing housing connection structure is welded to the upper surface of the SMT board; The lower surface of the SMT board is soldered and fixed to the PCB board.

Images