PCB female end connector

Abstract

The utility model provides a PCB female end connector which comprises a connector body, the cross section of the connector body is in an n shape, broken grooves are formed in the positions, close to the left side edge and the right side edge of the connector body, of the connector body respectively, welding parts are arranged at the bottom of the connector body in a front-back symmetry mode, and the broken grooves extend downwards from the top of the connector body to the welding parts. The male end connector comprises a connector body and a broken groove, the broken groove penetrates through the connector body front and back, the broken groove divides the connector body into a first installation part on the left side, a floating contact part in the middle and a second installation part on the right side, and when the male end connector is deviated or obliquely inserted, the floating contact part can swing or bend between the first installation part and the second installation part in a self-adaptive mode. Therefore, the stable positive electrical contact with the male end is always maintained. The floating contact part can adaptively swing or bend when the male end connector is deviated or obliquely inserted. Therefore, stable forward electrical contact between the female end connector and the male end can be maintained all the time, and the reliability and the stability of connection are improved.

Description

Technical Field

[0001] This application relates to the field of PCB board connectors, and particularly to a female terminal connector for a PCB board. Background Art

[0002] The female end of a PCB board connector is a component specifically designed to receive and connect to a male connector, usually soldered onto the PCB board to achieve stable circuit connection and signal transmission.

[0003] In the field of electronic connector technology, with the trend of miniaturization and integration of electronic devices, the requirements for PCB board connectors are also increasing day by day. Traditional connector terminals usually rely on a plastic body to maintain their structural stability. However, in some high-precision or high-demand application scenarios, the presence of the plastic body will limit the tolerance range of the connector, making it difficult to adapt to the misalignment and skew insertion of the male end. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a female terminal connector for a PCB board, which has self-adaptive floating contact, cost advantages without a plastic body, and symmetric positive force maintenance.

[0005] To achieve the above purpose, the present application provides the following technical solutions:

[0006] A female terminal connector for a PCB board includes a connector body. The cross-section of the connector body is in a U-shape. Breaking grooves are respectively arranged near the left side and the right two sides of the connector body. Welding parts are symmetrically arranged at the front and back of the bottom of the connector body. The breaking grooves extend from the top of the connector body down to the welding parts and penetrate through the connector body from front to back. The breaking grooves divide the connector body into a first installation part on the left, a floating contact part in the middle, and a second installation part on the right. When the male connector is misaligned or skew inserted, the floating contact part can swing or bend adaptively between the first installation part and the second installation part to ensure stable positive electrical contact with the male end all the time.

[0007] Furthermore, clearance grooves are respectively arranged in the middle of the front side and the back side of the floating contact part. A first contact elastic piece which is symmetrically arranged and relatively bent is formed by extending downwards from the top of each clearance groove. The floating contact part has symmetric second contact elastic pieces at the front and back on the left side of the clearance groove, and symmetric third contact elastic pieces at the front and back on the right side of the clearance groove.

[0008] Furthermore, a first bending part facing outwards is arranged at the lower end of each first contact elastic piece. Second bending parts which are bent inwards and are relatively arranged are arranged on each second contact elastic piece, and third bending parts which are bent inwards and are relatively arranged are arranged on each third contact elastic piece.

[0009] Furthermore, the first bending portion, the second bending portion and the third bending portion are in the shape of a triangle, and the contact point of the first bending portion is the vertex angle of the triangle.

[0010] Furthermore, the first bending portion forms a structure similar to a figure eight.

[0011] Furthermore, a gap is formed between the left side of the second contact spring and the first mounting portion, and a gap is formed between the right side of the second contact spring and the first contact spring.

[0012] Further, a gap is formed between the right side of the third contact spring and the second mounting portion, and a gap is formed between the left side of the third contact spring and the first contact spring.

[0013] Furthermore, each of the welding portions extends upward from the bottom of the avoidance groove to form a guide portion that is bent inwardly.

[0014] Furthermore, a welding groove is provided on the outer side surface of each welding portion.

[0015] Furthermore, the front side surface and the rear side surface of the first mounting portion are respectively provided with a first position limiting protrusion, and the front side surface and the rear side surface of the second mounting portion are respectively provided with a second position limiting protrusion.

[0016] The beneficial effects of this application are:

[0017] (1) The floating contact portion of the present application can adaptively swing or bend between the first mounting portion and the second mounting portion when the male connector is offset or inserted obliquely, thereby ensuring that the female connector and the male end can always maintain stable positive electrical contact, thereby improving the reliability and stability of the connection.

[0018] (2) Even if the male end is offset or inserted obliquely, the design of the floating contact portion ensures that the positive force exerted by the spring of the floating contact portion on the male connector remains symmetrical. This avoids connection problems caused by uneven force and further improves the stability and reliability of the electrical connection.

[0019] (3) The present invention does not rely on a plastic body to maintain structural stability, so compared with conventional connectors with a plastic body, the present invention has a significant advantage in material cost. This not only reduces production costs, but also meets the demand for cost control under the current trend of miniaturization and integration of electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a PCB board female connector provided in an embodiment of the present application after being installed on a PCB board;

[0021] Figure 2A schematic structural diagram of another perspective of the female connector of a PCB board provided in one embodiment of the present application after being installed on a PCB board;

[0022] Figure 3 A schematic diagram of the structure of a female connector on a PCB board provided in one embodiment of the present application;

[0023] Figure 4 A front view of a female connector on a PCB provided in one embodiment of the present application after being installed on a PCB;

[0024] Figure 5 for Figure 4 Sectional view at AA;

[0025] Figure 6 A front view of a female connector on a PCB provided in one embodiment of the present application;

[0026] Figure 7 for Figure 6 Cross-sectional view at BB;

[0027] Figure 8 for Figure 6 Cross-sectional view at CC;

[0028] Fig. 9 for Figure 6 Sectional view at DD;

[0029] Fig.10 A front view of a male connector provided in an embodiment of the present application before being inserted into a female connector of a PCB board;

[0030] Fig.11 for Fig.11 Cross-sectional view at EE;

[0031] Fig.12 A cross-sectional view of a male connector provided in an embodiment of the present application when obliquely inserted into a female connector of a PCB board;

[0032] Fig.13 When the male connector provided in one embodiment of the present application is obliquely inserted into the female connector of the PCB board, the floating contact portion of the female connector of the PCB board can swing or bend adaptively to ensure that a stable positive electrical contact can always be maintained between the male connector and the female connector;

[0033] Fig.14 This is a schematic diagram of a male connector provided in an embodiment of the present application being obliquely inserted into a female connector on a PCB board, and the floating contact portion of the female connector on the PCB board being aligned with the male connector.

[0034] Description of reference numerals:

[0035] a. Female connector; b. Male connector;

[0036] 1. Connector body; 2. PCB board; 3. Welding part; 4. Breaking groove;

[0037] 11. first mounting portion; 12. floating contact portion; 13. second mounting portion;

[0038] 121, avoidance groove; 122, first contact spring piece; 123, second contact spring piece; 124, third contact spring piece;

[0039] 1221, first bending portion; 1231, second bending portion; 1241, third bending portion;

[0040] 31. guide portion; 32. welding groove;

[0041] 111. A first limiting protrusion; 131. A second limiting protrusion. DETAILED DESCRIPTION

[0042] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0043] like Figure 1 and Figure 2 As shown, in this embodiment, a female end connector a of a PCB board 2 is provided, wherein the female end connector is made by punching out metal material, and the female end connector includes a connector body 1, and a welding portion 3 is located at the bottom of the connector body 1 and is perpendicular to the connector body 1, wherein the connector body 1 passes through the PCB board 2 from the bottom of the PCB board 2 upward, and the welding portion 3 is located at the bottom of the PCB board 2 and is welded to the PCB board 2.

[0044] like Figures 3 to 5As shown, in this embodiment, the cross-section of the connector body 1 is in a U-shape. Here, the cross-section is the shape presented when we observe the connector body 1 from its left or right side. Breaking grooves 4 are respectively arranged near the left and right sides of the connector body 1. The breaking grooves 4 extend downward from the top of the connector body 1 to the welding part 3 and penetrate through the connector body 1 from front to back. This design not only optimizes the structure of the connector but also provides space for its adaptive swinging or bending; the breaking grooves 4 divide the connector body 1 into a first mounting part 11 on the left, a floating contact part 12 in the middle, and a second mounting part 13 on the right. The floating contact part 12 is located in the middle of the connector body 1 and is surrounded by the breaking grooves 4 on both sides. When the male connector b is misaligned or obliquely inserted, the floating contact part 12 can adaptively swing or bend between the first mounting part 11 and the second mounting part 13 to ensure stable positive electrical contact with the male end all the time. Through adaptive swinging or bending, the floating contact part 12 can absorb the stress generated due to the misalignment or oblique insertion of the male connector b, thus avoiding problems such as connector damage or electrical connection failure caused by stress concentration.

[0045] As Figure 6 shown, in this embodiment, clearance grooves 121 are respectively arranged in the middle of the front and rear sides of the floating contact part 12. A symmetrically arranged and relatively bent first contact elastic piece 122 is formed by each clearance groove 121 extending downward from its top. The floating contact part 12 has symmetrically arranged second contact elastic pieces 123 in the front and back on the left side of the clearance groove 121, and the floating contact part 12 has symmetrically arranged third contact elastic pieces 124 in the front and back on the right side of the clearance groove 121. The symmetrically arranged and relatively bent first contact elastic pieces 122 formed by each clearance groove 121 extending downward from its top are the main contact points for electrical connection. These contact elastic pieces can adaptively adjust their positions to ensure stable contact with the male connector b. Even when the male connector b is not inserted accurately enough, good electrical connection can still be maintained.

[0046] As Figure 6 shown, in this embodiment, an outward-facing first bending part 1221 is arranged at the lower end of each first contact elastic piece 122. Second bending parts 1231 that are bent inward and arranged oppositely are arranged on each second contact elastic piece 123, and third bending parts 1241 that are bent inward and arranged oppositely are arranged on each third contact elastic piece 124. The design of the bending parts enables the contact elastic pieces to have a certain degree of bending freedom and can adaptively adjust their positions to better adapt to the insertion of the male connector b. This adaptive ability helps to reduce connection problems caused by inaccurate insertion of the male connector b and improves the fault tolerance and reliability of the connector.

[0047] As Figure 6As shown, in this embodiment, the first bending portion 1221, the second bending portion 1231 and the third bending portion 1241 are triangular, and the contact point of the first bending portion 1221 is the vertex of the triangle. The stable structure of the triangle enables the three bending portions to disperse the pressure more evenly when subjected to force, thereby enhancing the stability of the connector during the connection process.

[0048] like Figure 6 As shown, in particular, the first bent portion 1221 serves as the apex of the triangle, and its contact point can bear greater vertical pressure, further enhancing the stability of the connection.

[0049] like Fig. 9 As shown, in this embodiment, the first bent portion 1221 forms a structure similar to a figure eight. When the male connector b is inserted into the female connector a, the figure eight structure of the first bent portion 1221 can guide the male connector b to be inserted along a predetermined track, ensuring that it accurately and quickly docks with the contact spring of the female connector a.

[0050] This guiding feature reduces connection problems caused by inaccurate insertion and improves the reliability and stability of the connection.

[0051] like Figure 6 As shown, in this embodiment, the second contact spring 123 has a gap H1 with the first mounting portion 11 on the left side and a gap H2 with the first contact spring 122 on the right side. The third contact spring 124 has a gap with the second mounting portion 13 on the right side and a gap with the first contact spring 122 on the left side.

[0052] When the male connector b is offset or inserted obliquely, the floating contact portion 12 can adaptively swing or bend between the first mounting portion 11 and the second mounting portion 13. These gaps allow the contact spring to have enough space for necessary movement and adjustment to ensure that stable positive electrical contact is always maintained with the male connector b.

[0053] In this embodiment, each welding portion 3 extends upward from the bottom of the avoidance groove 121 to form a guide portion 31 that is bent inwardly.

[0054] like Figure 7 As shown, the main function of the guide portion 31 is to guide the male connector b (such as a plug) to be accurately inserted into the female connector a. The inwardly curved design can ensure that the male connector b moves along a predetermined track during insertion, thereby reducing the risk of improper insertion or misalignment.

[0055] The design of the guide portion 31 can also protect the contact spring. During the insertion of the male connector b, the guide portion 31 can first contact the male connector b, reducing or avoiding the PIN position of the male connector b directly hitting the contact spring, thereby extending the service life of the contact spring.

[0056] like Figure 3 As shown, in this embodiment, each soldering portion 3 is provided with a soldering groove 32 on its outer side. The soldering groove 32 provides a clear positioning point for the soldering process. When soldering the female connector a to the PCB board 2, the soldering groove 32 can help the operator to place the connector more accurately and ensure that the connector is aligned with the solder pad on the PCB board 2.

[0057] like Figure 1 As shown, in this embodiment, the front side and the rear side of the first mounting portion 11 are respectively provided with a first limiting protrusion 111, and the front side and the rear side of the second mounting portion 13 are respectively provided with a second limiting protrusion 131. The limiting protrusion increases the connection strength between the connector and the PCB board 2 by physically contacting the PCB board 2. This helps to reduce the risk of the connector loosening or falling off due to factors such as vibration, impact or temperature changes.

[0058] like Figures 10 to 14 As shown, a specific embodiment is provided below to help us more intuitively understand how the female connector a of the PCB board 2 absorbs the stress generated when the male connector b is offset or inserted obliquely through the adaptively swinging or bending floating contact portion 12, thereby maintaining the stability and reliability of the electrical connection.

[0059] Suppose that in a control system inside a car, we use this PCB board 2 female end connector a to connect an important sensor. The sensor plug (i.e. male end connector b) needs to be inserted into the PCB board 2 female end connector a to realize data transmission.

[0060] Case 1: Male connector b is offset.

[0061] When the sensor plug is misaligned during insertion due to assembly errors or vibrations, the conventional connector may cause poor contact or damage due to the misalignment between the PIN position and the contact point. However, in the female connector a of the PCB board 2 of this embodiment, when the sensor plug is misaligned, the floating contact portion 12 corresponds to this offset and adaptively swings between the first mounting portion 11 and the second mounting portion 13. This swinging will adjust the position of the floating contact portion 12 so that its PIN position is realigned with the contact point of the sensor plug, thereby maintaining a stable electrical connection. At the same time, the swinging of the floating contact portion 12 also absorbs the stress generated by the misalignment, thereby avoiding damage to the connector caused by stress concentration.

[0062] Case 2: The male connector b is inserted at an angle.

[0063] If the sensor plug is not inserted vertically but inserted obliquely during insertion, this will also bring challenges to traditional connectors. In the female connector a of the PCB board 2 of this embodiment, when the sensor plug is inserted obliquely, the floating contact portion 12 will bend within its elastic range. This bending not only ensures the contact between the PIN position and the contact point, but also absorbs the stress generated by the oblique insertion. Since the floating contact portion 12 has a certain degree of elasticity, it can withstand a certain degree of bending without damage, thereby ensuring the stability and reliability of the electrical connection.

[0064] Through these two embodiments, we can see that the female connector a of the PCB board 2 of this embodiment can swing or bend adaptively when the male connector b is offset or inserted obliquely, thereby ensuring the stability and reliability of the electrical connection. This design enables the connector to adapt to the complex internal environment of the car and improves the stability and reliability of the entire system.

[0065] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0066] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0067] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A female connector for a PCB board, characterized in that: The invention comprises a connector body, the cross section of which is in the shape of a Chinese numeral 5, and broken grooves are respectively arranged near the left side and the right side of the connector body. A welding portion is symmetrically arranged at the bottom of the connector body. The broken groove extends downward from the top of the connector body to the welding portion, and penetrates the connector body from front to back. The broken groove divides the connector body into a first mounting portion on the left, a floating contact portion in the middle and a second mounting portion on the right. When the male connector is offset or inserted obliquely, the floating contact portion can adaptively swing or bend between the first mounting portion and the second mounting portion to ensure that a stable positive electrical contact is always maintained with the male end.

2. A PCB board female connector according to claim 1, characterized in that: A clearance groove is respectively provided in the middle of the front and rear sides of the floating contact portion, and the top of each of the clearance grooves extends downward to form a first contact spring piece that is symmetrically arranged and relatively bent, and the floating contact portion has a second contact spring piece that is symmetrical in front and back on the left side of the clearance groove, and the floating contact portion has a third contact spring piece that is symmetrical in front and back on the right side of the clearance groove.

3. A PCB board female connector according to claim 2, characterized in that: Each of the first contact springs has a first bending portion facing outward at its lower end, each of the second contact springs has a second bending portion bending inward and opposite to each other, and each of the third contact springs has a third bending portion bending inward and opposite to each other.

4. A PCB board female connector according to claim 3, characterized in that: The first bending portion, the second bending portion and the third bending portion are in a triangle shape, and the contact point of the first bending portion is the vertex angle of the triangle.

5. A PCB board female connector according to claim 3, characterized in that: The first bending portion forms a structure similar to a figure eight.

6. A PCB board female connector according to claim 2, characterized in that: A gap is formed between the left side of the second contact spring and the first mounting portion, and a gap is formed between the right side of the second contact spring and the first contact spring.

7. A PCB board female connector according to claim 2, characterized in that: A gap is formed between the right side of the third contact spring and the second mounting portion, and a gap is formed between the left side of the third contact spring and the first contact spring.

8. A PCB board female connector according to any one of claims 2 to 7, characterized in that: Each welding portion extends upward from the bottom of the avoidance groove to form a guide portion that is bent and arranged inwardly.

9. A PCB board female connector according to claim 8, characterized in that: The outer side surface of each welding portion is provided with a welding groove.

10. A PCB board female connector according to any one of claims 1 to 7, characterized in that: The front side surface and the rear side surface of the first mounting portion are respectively provided with a first position limiting protrusion, and the front side surface and the rear side surface of the second mounting portion are respectively provided with a second position limiting protrusion.

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