Conductive terminal and connector

Abstract

The utility model belongs to the technical field of connectors, and discloses a conductive terminal and a connector, the conductive terminal comprises a terminal body and an elastic support member, the terminal body extends along a first direction, one end of the terminal body is provided with a plug-in mounting part, the plug-in mounting part is provided with an accommodating hole penetrating along a second direction, two ends of the plug-in mounting part in a third direction are respectively provided with an outer support surface, and the elastic support member is provided with a through hole. The first direction, the second direction and the third direction are perpendicular in pairs, the distance between the two outer supporting faces is gradually increased from the two ends of the first direction to the middle of the first direction, the distance between the two inner supporting faces is gradually increased, and the elastic supporting piece comprises a positioning part and a stopping part which are connected with each other. The positioning part abuts against one inner supporting face, the abutting-against part is arranged in a protruding mode relative to the positioning part and abuts against the other inner supporting face, and the connector comprises the conductive terminal. According to the utility model, the terminal body and the elastic support member are independent from each other and are assembled to form the conductive terminal, so that the requirements on a stamping die structure and a process are low.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a conductive terminal and a connector. Background Art

[0002] In a connector, the insertion part of the conductive terminal is in a fisheye shape, so that when the insertion part is inserted into the connection hole of the circuit board, it can support the inner wall of the connection hole, realizing a reliable connection between the conductive terminal and the circuit board.

[0003] The insertion part of the conductive terminal is usually a solid structure, resulting in a large resistance when the insertion part is inserted into the connection hole, causing scratches and damages to the connection hole of the circuit board. Furthermore, after the environmental test of high and low temperature cycling, the supporting and holding force of the connection hole of the circuit board for the conductive terminal decays severely, leading to a risk of failure in the connection between the conductive terminal and the circuit board.

[0004] In view of the above problems, in the prior art, a through-hole structure or a ribbed through-hole structure is formed on the insertion part of the conductive terminal by an integral stamping process. When a through-hole structure is provided on the insertion part, the supporting and holding force after being inserted into the connection hole is small, and the supporting and holding force decays severely after the environmental test of high and low temperature cycling, resulting in a risk of failure in the connection between the conductive terminal and the circuit board. When a ribbed through-hole structure is provided on the insertion part, support ribs are provided in the through-hole of the insertion part, and the requirements for the punching die structure and process are relatively strict, resulting in a low production yield and high production cost. Moreover, the supporting and holding force of this structure also decays severely after the environmental test of high and low temperature cycling, resulting in a risk of failure in the connection between the conductive terminal and the circuit board. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a conductive terminal and a connector, which can simply and reliably ensure the supporting and holding force during assembly.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A conductive terminal, comprising:

[0008] A terminal body extending along a first direction, with an insertion part provided at one end. The insertion part is provided with an accommodation hole penetrating along a second direction. Outer support surfaces are respectively provided at both ends of the insertion part in a third direction, and inner support surfaces are respectively provided at both ends of the accommodation hole in the third direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. From both ends to the middle in the first direction, the distance between the two outer support surfaces gradually increases, and the distance between the two inner support surfaces gradually increases;

[0009] Elastic support member, the elastic support member includes a positioning portion and a stopping portion connected to each other, the positioning portion abuts against one of the inner supporting surfaces, the stopping portion protrudes relative to the positioning portion and abuts against the other inner supporting surface.

[0010] Preferably, the inner supporting surface includes two transition sub-surfaces and an intermediate sub-surface, the intermediate sub-surface is connected to one of the transition sub-surfaces at both ends in the first direction, the intermediate sub-surfaces of the two inner supporting surfaces are parallel to each other, and along the direction away from the intermediate sub-surface, the distance between the transition sub-surfaces at the same end of the two inner supporting surfaces gradually decreases.

[0011] Preferably, the accommodating hole is provided with inner arc surfaces at both ends in the first direction, and the elastic support member extends to the junction of the inner supporting surface and the two inner arc surfaces at both ends in the first direction.

[0012] Preferably, the positioning portion is a plate-like structure and abuts against the inner supporting surface.

[0013] Preferably, the elastic support member includes a plurality of the positioning portions, the plurality of positioning portions are arranged in sequence in the first direction, and a stopping portion is arranged between two adjacent positioning portions.

[0014] Preferably, the positioning portions at both ends of the elastic support member are respectively arranged at intervals from both ends of the accommodating hole in the first direction.

[0015] Preferably, the stopping portion includes a first bent sub-portion, an intermediate sub-portion and a second bent sub-portion, the first bent sub-portion abuts against the inner supporting surface, the first bent sub-portion is connected to one of the intermediate sub-portions at both ends in the first direction, one end of each intermediate sub-portion facing away from the first bent sub-portion is connected to a second bent sub-portion, and one end of each second bent sub-portion facing away from the intermediate sub-portion is connected to a positioning portion.

[0016] Preferably, the bending directions of the first bent sub-portion and the second bent sub-portion are opposite, and the bending axes are both parallel to the second direction.

[0017] Preferably, the intermediate sub-portion is a plate-like structure and is parallel to the second direction.

[0018] Connector, including a circuit board and the above-mentioned conductive terminals, the circuit board is provided with connection holes, the insertion portions are installed in the connection holes, and the two outer supporting surfaces respectively abut against two opposite inner walls of the connection holes.

[0019] Advantages of the present utility model:

[0020] The terminal body is supported by an elastic support member in the accommodation hole of the insertion part. The positioning part and the abutting part of the elastic support member cooperate with each other and respectively abut against two inner support surfaces in the accommodation hole. By supporting two outer support surfaces on the outside of the two insertion parts through the two inner support surfaces, it can ensure that after the insertion part is inserted into the connection hole of the circuit board, it receives sufficient support holding force, while avoiding scratching and damage to the connection hole, and effectively reducing the attenuation of the support holding force after the environmental test of high and low temperature thermal cycling, making the connection between the conductive terminal and the circuit board safe and reliable. The terminal body and the elastic support member are independent of each other, and the two are assembled to form a conductive terminal, with relatively low requirements for the punching die structure and process. The terminal body and the elastic support member are prepared separately, ensuring the production yield and reducing the production cost. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the cooperation between the conductive terminal and the circuit board according to an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of the cooperation between the conductive terminal and the circuit board according to an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the conductive terminal according to an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of the terminal body according to an embodiment of the present invention;

[0025] Figure 5 is a partial structural diagram of the terminal body according to an embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of the elastic support member according to an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Terminal body;

[0029] 11. Insertion part; 111. Outer support surface;

[0030] 12. Accommodation hole; 121. Inner support surface; 1211. Transition sub-surface; 1212. Intermediate sub-surface; 122. Inner arc surface;

[0031] 2. Elastic support member;

[0032] 21. Positioning part;

[0033] 22. Abutting part; 221. First bent sub-part; 222. Intermediate sub-part; 223. Second bent sub-part; 100. Circuit board; 101. Connection hole. Detailed Embodiments

[0034] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0035] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0037] The technical solution of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

[0038] As Figures 1-6 shown, the present utility model provides a conductive terminal, which includes a terminal body 1 and an elastic support member 2. Among them, the terminal body 1 extends in a first direction, and an insertion portion 11 is provided at one end. The insertion portion 11 is provided with a receiving hole 12 penetrating in a second direction. Outer support surfaces 111 are respectively provided at both ends of the insertion portion 11 in a third direction. Inner support surfaces 121 are respectively provided at both ends of the receiving hole 12 in the third direction. The first direction, the second direction, and the third direction are perpendicular to each other in pairs. From both ends to the middle in the first direction, the distance between the two outer support surfaces 111 gradually increases, and the distance between the two inner support surfaces 121 gradually increases. The elastic support member 2 includes a positioning portion 21 and a stopping portion 22 connected to each other. The positioning portion 21 abuts against one inner support surface 121, and the stopping portion 22 protrudes relative to the positioning portion 21 and abuts against the other inner support surface 121.

[0039] In the present utility model, the elastic support member 2 supports the terminal body 1 in the accommodation hole 12 of the insertion part 11. The positioning part 21 and the abutting part 22 of the elastic support member 2 cooperate with each other and respectively abut against two inner supporting surfaces 121 in the accommodation hole 12. By means of the two inner supporting surfaces 121, two outer supporting surfaces 111 on the outside of the two insertion parts 11 are supported. After the insertion part 11 is inserted into the connection hole 101 of the circuit board 100, it can ensure sufficient support holding force while avoiding scratching and damage to the connection hole 101, and effectively reduce the attenuation of the support holding force after the environmental test of high and low temperature thermal cycling, making the connection between the conductive terminal and the circuit board 100 safe and reliable. The terminal body 1 and the elastic support member 2 are independent of each other, and the two are assembled to form a conductive terminal, which has lower requirements for the punching die structure and process. The terminal body 1 and the elastic support member 2 are respectively prepared, ensuring the production yield and reducing the production cost.

[0040] Specifically, the inner supporting surface 121 includes two transition sub - surfaces 1211 and an intermediate sub - surface 1212. The intermediate sub - surface 1212 is connected to one transition sub - surface 1211 at each end in the first direction. The intermediate sub - surfaces 1212 of the two inner supporting surfaces 121 are parallel to each other. Along the direction away from the intermediate sub - surface 1212, the distance between the transition sub - surfaces 1211 at the same end of the two inner supporting surfaces 121 gradually decreases. By setting the intermediate sub - surface 1212, the position where the elastic support member 2 abuts against the inner supporting surface 121 in the accommodation hole 12 is more flexible, avoiding the situation that the support holding force changes greatly due to the position change of the elastic support member 2 in the accommodation hole 12.

[0041] More specifically, inner arc surfaces 122 are respectively arranged at both ends of the accommodation hole 12 in the first direction. The elastic support member 2 extends to the junction of the inner supporting surface 121 and the two inner arc surfaces 122 at both ends in the first direction. The two inner arc surfaces 122 can limit the elastic support member 2, ensuring the consistency of the position of the elastic support member 2 in the accommodation hole 12.

[0042] In this embodiment, both the transition sub - surface 1211 and the intermediate sub - surface 1212 are planes, which have higher precision and lower cost.

[0043] In other embodiments, both the transition sub - surface 1211 and the intermediate sub - surface 1212 can also be arc surfaces.

[0044] In other embodiments, the inner supporting surface 121 can also only include two transition sub - surfaces 1211, and the two transition sub - surfaces 1211 can be both planes or both arc surfaces.

[0045] In other embodiments, the inner supporting surface 121 can also be an entire arc surface, and the bending radius of the inner supporting surface 121 is greater than the bending radius of the inner arc surface 122.

[0046] Specifically, the elastic support member 2 includes a plurality of positioning portions 21, which are arranged in sequence in the first direction, and a stop portion 22 is arranged between two adjacent positioning portions 21. The above arrangement makes the support of the positioning portion 21 to the stop portion 22 more stable and reliable.

[0047] More specifically, the positioning parts 21 at both ends of the elastic support member 2 are spaced apart from both ends of the accommodating hole 12 in the first direction. The above arrangement provides space for the positioning parts 21 to move when the elastic support member 2 is deformed, thereby ensuring the structural safety of the elastic support member 2.

[0048] More specifically, the positioning portion 21 is a plate-like structure, which is close to the inner support surface 121. The above arrangement increases the contact area between the elastic support member 2 and the inner support surface 121, making the mechanical transmission between the elastic support member 2 and the inner support surface 121 more stable, and further ensuring the consistency of the position of the elastic support member 2 in the receiving hole 12.

[0049] In this embodiment, the elastic support member 2 includes two positioning portions 21 and a stop portion 22 . The transition sub-surface 1211 is a plane. The positioning portion 21 is in contact with the transition sub-surface 1211 , and the end portion extends to the junction of the inner supporting surface 121 and the inner arc surface 122 .

[0050] In other embodiments, the elastic support member 2 may also include three positioning portions 21 and two stop portions 22 , and a stop portion 22 is disposed between two adjacent positioning portions 21 .

[0051] In other embodiments, the elastic support member 2 may also include two positioning portions 21 and two stop portions 22 , and the two stop portions 22 are disposed between the two positioning portions 21 .

[0052] In other embodiments, the stop portion 22 may also be a protrusion formed on a plate-like structure by a stamping process, and the non-protruding portion of the plate-like structure is the positioning portion 21 .

[0053] Specifically, the abutting portion 22 includes a first bending sub-portion 221, an intermediate sub-portion 222 and a second bending sub-portion 223. The first bending sub-portion 221 abuts against the inner support surface 121. The first bending sub-portion 221 is connected to an intermediate sub-portion 222 at both ends in the first direction. Each intermediate sub-portion 222 is connected to a second bending sub-portion 223 at one end away from the first bending sub-portion 221. Each second bending sub-portion 223 is connected to a positioning portion 21 at one end away from the intermediate sub-portion 222. In the abutting portion 22, on the basis of the intermediate sub-portion 222, the first bending sub-portion 221 and the second bending sub-portion 223 cooperate to ensure sufficient deformation capacity while ensuring the support retention force.

[0054] More specifically, the bending directions of the first bending sub - portion 221 and the second bending sub - portion 223 are opposite, and the bending axes are both parallel to the second direction. With the above - mentioned arrangement, the first bending sub - portion 221 and the second bending sub - portion 223 can provide sufficient deformation ability.

[0055] More specifically, the middle sub - portion 222 is a plate - like structure and is parallel to the second direction. With the above - mentioned arrangement, the abutting portion 22 can provide sufficient support and holding force.

[0056] In this embodiment, the terminal body 1 and the elastic support 2 are respectively prepared by integral forming with a stamping die. The elastic support 2 is formed by bending a long strip - shaped metal plate. As a shrapnel structure, it has a certain amount of elastic deformation. The dimension of the elastic support 2 in the second direction is the same as the dimension of the insertion portion 11 in the second direction. The two ends of the elastic support 2 in the second direction are flush with the two ends of the receiving hole 12. The included angle between the middle sub - portion 222 and the positioning portion 21 is an obtuse angle. The first bending sub - portion 221 abuts against the middle sub - surface 1212 of the inner support surface 121.

[0057] In other embodiments, the abutting portion 22 may also only include the first bending sub - portion 221 and the second bending sub - portion 223.

[0058] The present utility model also provides a connector, which includes a circuit board 100 and the above - mentioned conductive terminal. A connection hole 101 is provided on the circuit board 100. The insertion portion 11 is installed in the connection hole 101, and the two outer support surfaces 111 respectively abut against the two opposite inner walls of the connection hole 101.

[0059] In the connector of the present utility model, the elastic support 2 supports the terminal body 1 in the receiving hole 12 of the insertion portion 11. The positioning portion 21 and the abutting portion 22 of the elastic support 2 cooperate with each other and respectively abut against the two inner support surfaces 121 in the receiving hole 12. By means of the two inner support surfaces 121, the two outer support surfaces 111 outside the two insertion portions 11 are supported. It can ensure that after the insertion portion 11 is inserted into the connection hole 101 of the circuit board 100, it can receive sufficient support and holding force, while avoiding scratching and damage to the connection hole 101, and effectively reducing the attenuation of the support and holding force after passing through the environmental test of high - low temperature thermal cycling. This makes the connection between the conductive terminal and the circuit board 100 safe and reliable. The terminal body 1 and the elastic support 2 are independent of each other, and the two are assembled to form a conductive terminal, which has lower requirements for the punching die structure and process. The terminal body 1 and the elastic support 2 are respectively prepared, which ensures the production yield and reduces the production cost.

[0060] In specific processing and use, first, the terminal body 1 and the elastic support member 2 are respectively formed by a stamping die. Then, the elastic support member 2 is assembled and implanted into the accommodation hole 12 of the terminal body 1 to form a conductive terminal. When the conductive terminal is in use, the insertion portion 11 is inserted into the connection hole 101 of the circuit board 100. At this time, the insertion portion 11 will receive the compressive force of the connection hole 101 and simultaneously compress the internal elastic support member 2. The compressed elastic support member 2 will generate a reaction force that acts on the hole wall of the accommodation hole 12, giving the insertion portion 11 sufficient reaction force, so that the insertion portion 11 acts on the hole wall of the connection hole 101 of the circuit board 100, thereby generating a reliable support and holding force, avoiding the problems of attenuation and failure of the support and holding force after environmental tests of high and low temperature thermal cycling.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Conductive terminal, characterized in that, Comprising: A terminal body extending along a first direction, with an insertion portion provided at one end. The insertion portion is provided with a receiving hole penetrating along a second direction. The insertion portion is provided with outer support surfaces at both ends in a third direction, and the receiving hole is provided with inner support surfaces at both ends in the third direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. From both ends to the middle in the first direction, the distance between the two outer support surfaces gradually increases, and the distance between the two inner support surfaces gradually increases. An elastic support member, which includes a positioning portion and a stopping portion connected to each other. The positioning portion abuts against one of the inner support surfaces, and the stopping portion protrudes relative to the positioning portion and abuts against the other inner support surface.

2. The conductive terminal according to claim 1, wherein, The inner support surface includes two transition sub-surfaces and a middle sub-surface. The middle sub-surfaces of the two inner support surfaces are parallel to each other. Along the direction away from the middle sub-surface, the distance between the transition sub-surfaces at the same end of the two inner support surfaces gradually decreases.

3. The conductive terminal according to claim 1, wherein The receiving hole is provided with inner arc surfaces at both ends in the first direction, and the elastic support member extends to the junction of the inner support surface and the two inner arc surfaces at both ends in the first direction.

4. The conductive terminal according to claim 1, wherein The positioning portion is a plate-like structure and abuts against the inner support surface.

5. The conductive terminal according to claim 1, wherein The elastic support member includes a plurality of the positioning portions, and the plurality of positioning portions are arranged in sequence in the first direction, and a stopping portion is arranged between two adjacent positioning portions.

6. The conductive terminal according to claim 5, wherein The positioning portions at both ends of the elastic support member are respectively arranged at intervals from both ends of the receiving hole in the first direction.

7. The conductive terminal according to claim 6, wherein, The stopping portion includes a first bent sub-portion, a middle sub-portion, and a second bent sub-portion. The first bent sub-portion abuts against the inner support surface. A middle sub-portion is connected to each end of the first bent sub-portion in the first direction. One end of each middle sub-portion facing away from the first bent sub-portion is connected to a second bent sub-portion, and one end of each second bent sub-portion facing away from the middle sub-portion is connected to a positioning portion.

8. The conductive terminal according to claim 7, characterized in that, The bending directions of the first bent sub-portion and the second bent sub-portion are opposite, and the bending axes are both parallel to the second direction.

9. The conductive terminal according to claim 7, wherein The middle sub-portion is a plate-like structure and is parallel to the second direction.

10. Connector, characterized in that, Comprising a circuit board and the conductive terminal according to any one of claims 1-9. A connection hole is provided on the circuit board, and the insertion portion is installed in the connection hole, and the two outer support surfaces respectively abut against two opposite inner walls of the connection hole.

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