WO2023024163A1 - 接触端子、电连接器及电子设备 - Google Patents
接触端子、电连接器及电子设备 Download PDFInfo
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- WO2023024163A1 WO2023024163A1 PCT/CN2021/117072 CN2021117072W WO2023024163A1 WO 2023024163 A1 WO2023024163 A1 WO 2023024163A1 CN 2021117072 W CN2021117072 W CN 2021117072W WO 2023024163 A1 WO2023024163 A1 WO 2023024163A1
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- Prior art keywords
- contact
- terminal
- contact arm
- arm
- bracket
- Prior art date
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- 238000003780 insertion Methods 0.000 abstract description 11
- 230000037431 insertion Effects 0.000 abstract description 11
- 230000009977 dual effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
Definitions
- the invention relates to the technical field of connectors, in particular to a contact terminal, an electrical connector and electronic equipment.
- torsion spring contact scheme In order to meet the demand for contact terminals of electrical connectors, there are currently two types of products in the world, the first type: torsion spring contact scheme, and the second type is wire spring contact scheme.
- its core component is an integrated copper alloy stamping shrapnel, and then uses processes such as rounding and twisting to make the contact surface form a twisted hyperboloid to increase the contact area to meet the current carrying requirements of the terminal.
- the core component of the wire spring scheme is a copper alloy wire wound on a ring-shaped copper sheet support.
- the copper alloy wire can improve the width and spacing of the torsion spring stamping shrapnel, reduce the insertion and withdrawal force of the terminal, and improve the service life of the terminal.
- the contact shrapnel is formed by one-piece stamping, which is limited by factors such as mold manufacturing.
- the width of the shrapnel and the spacing between the shrapnel cannot be made too small. In this way, the insertion and extraction force of the male and female terminals is relatively large, and the service life of the terminals is not high; and this contact scheme can only be used in large-sized terminals.
- the surface contact mode of the torsion spring is changed to a line contact mode, which reduces the contact area between a single contact pair.
- the density of wire spring winding must be increased, which also makes the wire spring contact scheme unable to be used in small-sized terminals.
- the wire spring solution cannot use large-diameter wires to wind the contacts, so the insertion and withdrawal force of the wire spring terminal is much smaller than that of the torsion spring terminal.
- a small insertion force can improve the service life of the terminal, at the same time, because the holding force of the terminal is too small, there may be a problem of discontinuous contact of the terminal, especially in the scene of vibration and shock in a heavy-duty environment.
- the wire spring uses a wire to wind the contact piece. If a disconnection occurs during use, the entire contact piece will be scattered and the contact will no longer be reliable. In addition, after the winding of the contact piece is completed, it is necessary to manually join the two ends of the wire spring, which will affect the production capacity and cannot meet the large demand of the market.
- the object of the present invention is to provide a contact terminal, an electrical connector and an electronic device, which can increase the current carrying capacity and improve the service life.
- the first aspect of the embodiment of the present invention discloses a contact terminal, which includes a bracket and a plurality of contact pieces, and the bracket strings the plurality of contact pieces together so that the plurality of contact pieces A ring structure is formed, the contact piece includes a first contact arm and a second contact arm, the first contact arm is located inside the ring structure, the second contact arm is located outside the ring structure, and the first contact arm is located at the outside of the ring structure.
- a contact arm has a hyperboloid structure.
- the first contact arm and the second contact arm are connected through a connecting part, and the connecting part is axially twisted by a preset angle so that
- the first contact arm has a hyperboloid structure, and the axial direction of the connecting portion is the connecting direction of the first contact arm and the second connecting arm.
- both ends of the first contact arm are bent toward the same side, so that the first contact arm has a hyperboloid structure.
- one or both ends of the second contact arm are provided with a bent portion extending to a side away from the first contact arm.
- a bracket space is provided between the first contact arm and the second contact arm, and the bracket passes through the bracket space.
- a slot and a moving elastic piece are provided between the first contact arm and the second contact arm, and the moving elastic piece snaps into other adjacent contacts. in the card slot of the chip.
- the bracket includes a bracket body, a fracture is provided on the bracket body, a protrusion is provided on one side of the fracture, and the fracture
- the other side of the bracket is provided with a recessed part that cooperates with the raised part, and when the raised part is inserted into the recessed part, the bracket body forms an annular structure.
- the second aspect of the embodiment of the present invention discloses an electrical connector, which includes a female terminal body, a plug, and the contact terminal described in the first aspect of the embodiment of the present invention, the contact terminal is installed in the female terminal body, The plug cooperates with the female terminal body and is used to block the contact terminal so as to limit the movement of the contact terminal in the vertical direction of the female terminal body.
- the bracket is provided with an outwardly extending elastic extension
- the female terminal body is provided with a card that cooperates with the elastic extension.
- the connecting groove when the contact terminal is installed in the female terminal body, the elastic extension part is clamped in the clamping groove.
- the third aspect of the embodiment of the present invention discloses an electronic device, which includes the electrical connector described in the second aspect of the embodiment of the present invention.
- the embodiment of the present invention uses a ring structure composed of a plurality of contact pieces, so that the electrical contact is changed from the line contact of the wire spring to the surface contact, which increases the contact area, effectively reduces the contact resistance, and increases the current carrying capacity of the terminal.
- the characteristics of the low insertion force of the spring can achieve the dual purpose of increasing the current carrying capacity and improving the service life.
- FIG. 1 is a schematic structural diagram of a contact terminal according to Embodiment 1 of the present invention.
- Fig. 2 is a structural schematic diagram of one direction of the contact piece of the present invention.
- Fig. 3 is a structural schematic diagram of another direction of the contact piece of the present invention.
- Fig. 4 is a structural schematic diagram of cooperation between the contact pieces of the present invention.
- Fig. 5 is a schematic structural view of the bracket of the present invention.
- FIG. 7 is a schematic structural diagram of a contact terminal according to Embodiment 2 of the present invention.
- Fig. 8 is a structural schematic diagram of one direction of the contact piece of the present invention.
- Fig. 9 is a structural schematic diagram of another direction of the contact piece of the present invention.
- FIG. 10 is a schematic structural diagram of a female terminal of an electrical connector according to Embodiment 3 of the present invention.
- Fig. 11 is a schematic diagram of an exploded structure of the electrical connector female terminal of the present invention.
- FIG. 13 is a cross-sectional view in another direction of the electrical connector female terminal of the present invention.
- FIG. 14 is a schematic structural view of the electrical connector of the present invention.
- 15 is a schematic structural view of the male terminal and the contact terminal of the electrical connector of the present invention.
- FIG. 16 is a schematic structural diagram of an electrical connector according to Embodiment 4 of the present invention.
- 17 is a schematic structural view of the male terminal and the contact terminal of the electrical connector of the present invention.
- Fig. 18 is a schematic structural view of the female terminal body of the present invention.
- Fig. 19 is a schematic structural view of the contact terminal of the present invention.
- Fig. 20 is a schematic structural view of the stent of the present invention.
- the first connector female terminal; 200 the first male terminal; 10, the main body of the first female terminal; 11, the snap ring; 20, the first contact terminal; 21, the first contact piece; 201, the first part 202, the second part; 211, the first contact arm; 212, the second contact arm; 213, the first movement shrapnel; 214, the first card slot; 215, the first bracket space; 22, the contact piece; 221, the movement Shrapnel; 23, contact piece; 24, second contact piece; 241, third contact arm; 242, fourth contact arm; 243, second moving shrapnel; 244, second card slot; 245, second bracket space; 30 , the first bracket; 31, the first protrusion; 32, the first depression; 40, the plug; 41, the block; 42, the groove;
- the elastic extension 500, the second connector female terminal; 600, the first male terminal; 51, the second female terminal main body; 511, the clamping groove; 512, the blocking part; 52, the second contact terminal; 53, the second bracket; 531 , the second protrusion; 532, the second depression; 533, the elastic extension.
- connection should be understood in a broad sense, for example, it can be fixedly connected or through an intermediary
- connection between media can be the internal communication of two elements or the interaction relationship between two elements.
- the contact terminal mainly includes a first contact piece 21 and a first bracket 30 .
- the first contact piece 21 is provided with a first contact arm 211 and a second contact arm 212
- the first contact piece 21 is preferably formed by punching, and the punching direction is perpendicular to the direction of the first contact arm 211 or the second contact arm 212 , that is, the thin edges on both sides of the first contact piece 21 serve as the first contact arm 211 and the second contact arm 212 respectively.
- first contact piece 21 in a stamping manner and the punching direction perpendicular to the direction of the first contact arm 211 or the second contact arm 212 can avoid the problem that the width and spacing of the contact piece cannot be reduced due to factors such as mold manufacturing, and can ensure The insertion and withdrawal force of the male and female terminals, and changing the thickness of the punching plate can reduce the width of the single-piece contact, so that it can be used on small-sized terminals.
- a plurality of first contact pieces 21 are strung together through the first bracket 30 to form a ring structure.
- the first contact arm 211 is located inside the ring structure, the second contact arm 212 is located outside the ring structure, and the punched surfaces of two adjacent first contact pieces 21 are in close contact.
- the first contact arm 211 is used for plugging with the male terminal to realize the function of an electrical connector. It can be seen that when the male terminal is plugged into the contact terminal, it is in contact with the first contact arms 211 of all the first contact pieces 21 .
- the design of the contact piece using a single stamping part can ensure that even in the case of a single piece of disconnection, other contact pieces can still be effectively contacted to ensure the reliability of the contact scheme.
- the sheet-type blanking parts are used to change the electrical contact from the line contact of the wire spring to the surface contact, which increases the contact area and effectively reduces the contact resistance. It has the characteristics of low insertion force of the wire spring while increasing the current carrying capacity of the terminal. , so as to achieve the dual purpose of increasing the current carrying capacity and improving the service life.
- the ring structure has a specific shape according to the shape of the male terminal.
- Figure 1 shows a circular structure
- Figure 19 shows a rectangular structure.
- it can also be oval or triangular or other polygons structure etc.
- the first contact arm 211 presents a hyperboloid structure.
- the reason why it is set as a hyperboloid structure can increase the contact area between it and the male terminal, and reduce the number of contact pairs (first contact arm 211 and the contact resistance between the male terminal).
- Embodiment 1 of the present invention please refer to FIG. 4 to bend the two ends of the first contact arm 211 to the same side.
- the same side here refers to one side of the stamping surface. side, so that the end surface of the entire first contact arm 211 in contact with the male terminal has a hyperboloid structure.
- one end or both ends of the second contact arm 212 extend to a side away from the first contact arm 211 with a bent portion, and the bent portion is used for mounting the contact terminal on the female terminal.
- the bending portion has a certain degree of elasticity, which can adjust the insertion and extraction force between the male terminal and the female terminal.
- the first contact piece 21 adopts an axisymmetric structure with the connecting direction of the first contact arm 211 and the second contact arm 212 as the axis of symmetry (A axis), and the A axis connects the first contact piece 21 is divided into a first part 201 and a second part 202, and the first part 201 and the second part 202 have the same structure.
- a first locking groove 214 and a first moving elastic piece 213 are provided on both sides of the A axis, and the first moving elastic piece 213 is locked into the first slot 214 of other adjacent contact pieces ( Figure 5 shows that the moving elastic piece 221 of the contact piece 22 is locked into the slot of the contact piece 23).
- the first contact arm 211 and the second contact arm 212 are centered on the A axis, and the two ends of the two are bent to the same side. The other end of the other end extends away from the bending direction of the first contact arm 211 and the second contact arm 212 .
- the first bracket 30 passes through the first bracket space 215, and all the first contact pieces 21 are connected in series. into a ring structure.
- the first bracket 30 includes a first bracket body, the first bracket body is provided with a fracture, one side of the fracture is provided with a first protrusion 31, the other side of the fracture
- a first concave portion 32 is provided to cooperate with the first protruding portion 31 , and when the first protruding portion 31 is inserted into the first concave portion 32 , the bracket body forms an annular structure.
- the reason why the first protruding portion 31 and the first concave portion 32 are provided is to make the size of the ring formed by the entire contact terminal floating and adjustable within a certain range, so as to ensure the reliability of the connection.
- the first protrusion 31 may use a wedge-shaped structure, and of course, other shapes may also be used.
- the first concave portion 32 matches the shape of the first protruding portion 31 .
- the contact pieces can be made denser, and the contact pieces are both independent and linked. In extreme cases, even if a single piece of broken wire occurs, the impact on the overall contact can be ignored.
- Bladetac technology we call this new contact technology as Bladetac technology.
- Embodiment 2 shows another structure of the contact terminal.
- the end surface of the contact terminal which contacts with the male terminal is realized to be a hyperboloid through twisting.
- the contact piece of the second embodiment is changed to the second contact piece 24 (corresponding to the first contact piece in the first embodiment), and the contact between the second contact piece 24 and the male terminal
- One side is called the third contact arm 241 (corresponding to the first contact arm in the first embodiment)
- the side where the second contact piece 24 is in contact with the main body of the female terminal is called the fourth contact arm 242 (corresponding to the first contact arm in the first embodiment).
- the connecting portion between the third contact arm 241 and the fourth contact arm 242 is twisted by a certain angle, so that when the fourth contact arm 242 is used as a reference plane, the third contact arm 241 is Hyperboloid structure.
- the twist angle can be set as required, for example, it can be 2° or 5°.
- the second embodiment there is also a bracket space matched with the bracket, which becomes the second bracket space 245, and the second card slot 244 and the second moving elastic piece 243 matched with the adjacent two second contact pieces 24, which are the same as the first embodiment.
- the difference is that the other end of the second elastic piece is bent to fit one end of the second elastic piece integrally formed with the second locking groove 244 , so that the installation space can be reduced.
- the bracket structure cooperating with the second contact piece 24 may be the same as the structure of the first embodiment, which will not be repeated here.
- Embodiment 3 shows a structure of an electrical connector. It mainly includes a first connector female terminal 100 . Please refer to FIGS. 10-13 , which show a cylindrical first connector female terminal 100 .
- the first connector female terminal 100 includes a first female terminal main body 10 , a first contact terminal 20 and a plug 40 .
- the first female terminal main body 10 is provided with an accommodating space, the first contact terminal 20 is installed in the accommodating space, and the plug 40 is blocked at the end of the accommodating space, which is used to prevent the first contact terminal 20 from Axial movement in the first female terminal body 10 .
- the first contact terminal 20 may adopt any structural form of the first embodiment or the second embodiment.
- FIG. 12 and FIG. 13 show the method of using the contact terminal of Embodiment 1.
- the bent part provided on the second contact arm of the first contact piece 21 abuts against the inner wall of the first female terminal body 10 which is the accommodating space. .
- the mating structure of the plug 40 and the first female terminal main body 10 may be threaded connection, buckle connection or card connection, and the like.
- one or more snap rings 11 are arranged on the inner wall of the accommodating space. When multiple snap rings 11 are used, a certain gap is provided between adjacent snap rings 11.
- 40 is provided with a block 41 that cooperates with the snap ring 11. When the plug 40 is installed on the first female terminal body 10, the block 41 is inserted into the lower side of the snap ring 11, and the plug 40 is rotated so that the plug 40 is connected to the first female terminal main body 10 , and the lower end surface of the plug 40 abuts against the first contact terminal 20 .
- the plug 40 has a hollow structure to ensure that the first male terminal 200 can pass through the plug 40 and contact the first contact terminal 20 .
- a groove 42 is provided on the inner wall of the plug 40 along the axial direction of the plug 40 for conveniently rotating the plug 40 .
- the plug 40 can also be omitted, a certain elastic extension part is directly provided on the support of the first contact terminal 20, and a snap-in groove is opened on the main body of the first female terminal to directly connect the first contact
- the terminal 20 is clamped on the main body of the first female terminal, similar to the structure in FIG. 16 .
- Figure 14 and Figure 15 show the mating structure of the first connector female terminal 100 and the first male terminal 200, when the first male terminal 200 is inserted into the first connector female terminal 100, the first male terminal 200 and the first male terminal 200
- the contact arm on the inner side of the first contact terminal 20 is in close contact, and because the contact arm on the inner side of the first contact terminal 20 has a hyperboloid structure, the first male terminal 200 and its contact surface are in surface contact, which increases the contact area and effectively reduces the contact area.
- the contact resistance is reduced, while increasing the current carrying capacity of the terminal, it also has the characteristics of low insertion and withdrawal force of the wire spring, so as to achieve the dual purpose of increasing the current carrying capacity and improving the service life, ensuring the reliability and stability of the contact.
- Embodiment 4 shows another connector structure, which is different from Embodiment 3 in that the connection structure in Embodiment 4 is square.
- FIGS. 18-19 which include a second female terminal body 51 and a second contact terminal 52 .
- the second female terminal body 51 is provided with an accommodating space
- the second contact terminal 52 is installed in the accommodating space
- a sealing part 512 is fixed or integrally formed on one side of the accommodating space.
- the part 512 can also use the plug structure in the third embodiment.
- a locking groove 511 is opened in the accommodating space, and elastic extensions 533 matching with the locking groove 511 are arranged on both sides of the second contact terminal 52 , when the second contact terminal 52 is installed on the second female terminal body 51 , as long as the elastic extension part 533 is snapped into the snap-in slot 511, the second contact terminal 52 can be limited in the vertical direction of the second female terminal body 51.
- it can also be
- the second contact terminal 52 is blocked in the accommodating space by a plug (two plugs, or a structure of a plug and a plug part are adopted).
- the second contact terminal 52 can adopt any structural form of the first embodiment or the second embodiment.
- Figure 16 and Figure 17 show the mating structure of the second connector female terminal 500 and the second male terminal 600, when the second male terminal 600 is inserted into the second connector female terminal 500, the second male terminal 600 and the second male terminal 600
- the contact arm on the inner side of the second contact terminal 52 is close to each other, and because the contact arm on the inner side of the second contact terminal 52 has a hyperboloid structure, the second male terminal 600 and its contact surface are in surface contact, which increases the contact area and effectively reduces the contact area.
- the contact resistance is reduced, while increasing the current carrying capacity of the terminal, it also has the characteristics of low insertion and withdrawal force of the wire spring, so as to achieve the dual purpose of increasing the current carrying capacity and improving the service life, ensuring the reliability and stability of the contact.
- the second bracket 53 is rectangular (or called square), its structure can be similar to the first bracket in Embodiment 1, the second bracket 53 includes a second bracket body, and the second bracket body A fracture is provided on the top, a second protruding portion 531 is provided on one side of the fracture, and a second concave portion 532 that cooperates with the second protruding portion 531 is provided on the other side of the fracture.
- the bracket body forms a ring (square) structure.
- the reason why the second protruding portion 531 and the second concave portion 532 are provided is to make the size of the ring formed by the entire contact terminal floating and adjustable within a certain range, so as to ensure the reliability of the connection.
Abstract
一种接触端子（20）、包括上述接触端子（20）的电连接器及电子设备，其中，接触端子（20）包括支架（30）以及多个接触片（21），支架（30）将多个接触片（21）串在一起，以使多个接触片（21）形成环形结构，接触片（21）包括第一接触臂（211）和第二接触臂（213），第一接触臂（211）位于环形结构的内侧，第二接触臂（213）位于环形结构的外侧，第一接触臂（211）呈双曲面结构。通过多个接触片（21）组成的环形结构，使得电气接触由线簧的线接触变更为面接触，增加了接触面积，有效的减低了接触电阻，在增加端子载流的同时又具有线簧低插拔力的特性，从而达到增加载流能力，提高使用寿命的双重目的。
Description
本发明涉及连接器技术领域，具体涉及一种接触端子、电连接器及电子设备。
随着社会发展的需要，对电连接器提出了更为严格的要求，主要体现在两方面：一，对端子（公端子和母端子）的载流能力要求更高，特别是储能和新能源等对产品重量和尺寸有较高要求的应用场景；二，对端子的使用寿命要求更高，比如换电技术或新能源充电连接器等有频繁插拔需求的应用场景。
为了满足对电连接器接触端子的需求，目前世面上主要分为两大类产品，第一类：扭簧接触方案，第二类为线簧接触方案。
扭簧方案，其核心部件为一个一体式的铜合金冲压弹片，然后采用包圆和扭曲等工艺使其接触面形成扭曲的双曲面，以增加接触面积来满足端子载流的需求。
线簧方案，其核心部件为缠绕在环形铜片支架上的铜合金线。铜合金线可以改善扭簧冲压弹片宽度和间距的问题，可以减小端子的插拔力，提高端子的使用寿命。
扭簧方案主要有两大缺点：
1、接触弹片采用一体式冲压成型，受模具制造等因素限制。弹片的宽度和弹片之间的间距不能做太做小。如此导致公母端子的插拔力较大，端子的使用寿命不高等现象；且此种接触方案只能用在大尺寸的端子中。
2、接触弹片与母端子的固定安装，需要采用内外套，钢套或是激光焊接等安装附件或是工艺。造成组装工艺复杂，产品品质不稳定，产品价格过高的情况不能满足市场需求。
而线簧方案主要的问题：
1、将扭簧的面接触方式，改成了线接触方式，减小了单个接触对之间的接触面积。为了确保接触电阻，线簧绕制的密度必须加大，这也导致线簧接触方案不能用在小尺寸的端子中。
2、为了保证接触面积，导致线簧方案不能采用大线径的线来绕制接触件，所以线簧端子的插拔力比扭簧端子的插拔力要小很多。较小的插拔力虽然能提高端子的使用寿命，但同时由于端子的保持力过小，可能出现端子接触不连续的问题，特别是在重载环境，发生震动和冲击的场景。
3、线簧采用一根线来绕制接触件，如果在使用过程出现一处断线现象，整个接触件将会散乱，接触不再可靠。另接触件绕制完成后，需要人工去将线簧的两端接合，将会影响产能，无法满足市场的大量需求。
本发明的目的在于提供一种接触端子、电连接器及电子设备，可以增加载流能力，并能提高使用寿命。
为实现上述目的，本发明实施例第一方面公开了一种接触端子，其包括支架以及多个接触片，所述支架将所述多个接触片串在一起，以使所述多个接触片形成环形结构，所述接触片包括第一接触臂和第二接触臂，所述第一接触臂位于所述环形结构的内侧，所述第二接触臂位于所述环形结构的外侧，所述第一接触臂呈双曲面结构。
作为一种可选的实施方式，在本发明实施例第一方面中，所述第一接触臂和第二接触臂之间通过连接部连接，所述连接部轴向扭转预设角度，以使所述第一接触臂呈双曲面结构，所述连接部的轴向为第一接触臂和第二连接臂的连接方向。
作为一种可选的实施方式，在本发明实施例第一方面中，所述第一接触臂的两端向同一侧折弯，以使所述第一接触臂呈双曲面结构。
作为一种可选的实施方式，在本发明实施例第一方面中，所述第二接触臂的一端或两端向远离所述第一接触臂的一侧延伸设置有折弯部。
作为一种可选的实施方式，在本发明实施例第一方面中，所述第一接触臂和第二接触臂之间设置有支架空间，所述支架穿于所述支架空间中。
作为一种可选的实施方式，在本发明实施例第一方面中，所述第一接触臂和第二接触臂之间设置有卡槽和运动弹片，所述运动弹片卡入相邻其他接触片的卡槽中。
作为一种可选的实施方式，在本发明实施例第一方面中，所述支架包括支架本体，所述支架本体上设置有断口，所述断口的一侧设置有凸起部，所述断口的另一侧设置有与所述凸起部配合的凹陷部，所述凸起部插接于所述凹陷部时，使得所述支架本体形成环形结构。
本发明实施例第二方面公开了一种电连接器，其包括母端子本体、堵头以及本发明实施例第一方面所述的接触端子，所述接触端子安装于所述母端子本体中，所述堵头与所述母端子本体配合，用于封堵所述接触端子，以限定所述接触端子在母端子本体竖直方向的移动。
作为一种可选的实施方式，在本发明实施例第二方面中，所述支架上设置有向外延伸的弹性延伸部，所述母端子本体上开设有与所述弹性延伸部配合的卡接槽，所述接触端子安装于所述母端子本体中时，所述弹性延伸部卡接于所述卡接槽中。
本发明实施例第三方面公开了一种电子设备，其包括本发明实施例第二方面所述的电连接器。
相比现有技术，本发明的有益效果在于：
本发明实施例通过多个接触片组成的环形结构，使得电气接触由线簧的线接触变更为面接触，增加了接触面积，有效的减低了接触电阻，在增加端子载流的同时又具有线簧低插拔力的特性，从而达到增加载流能力，提高使用寿命的双重目的。
图1为本发明实施例一的接触端子的结构示意图；
图2为本发明的接触片的其中一个方向的结构示意图；
图3为本发明的接触片的另一个方向的结构示意图；
图4为本发明的接触片之间配合的结构示意图；
图5为本发明的支架的结构示意图；
图7为本发明实施例二的接触端子的结构示意图；
图8为本发明的接触片的其中一个方向的结构示意图；
图9为本发明的接触片的另一个方向的结构示意图
图10为本发明实施例三的电连接器母端子的结构示意图；
图11为本发明的电连接器母端子的分解结构示意图；
图12为本发明的电连接器母端子的其中一个方向的剖视图；
图13为本发明的电连接器母端子的另一个方向的剖视图；
图14为本发明的电连接器的结构示意图；
图15为本发明的电连接器公端子与接触端子的结构示意图；
图16为本发明实施例四的电连接器的结构示意图；
图17为为本发明的电连接器公端子与接触端子的结构示意图；
图18为本发明的母端子本体的结构示意图；
图19为本发明的接触端子的结构示意图；
图20为本发明的支架的结构示意图。
图中：100、第一连接器母端子；200、第一公端子；10、第一母端子主体；11、卡环；20、第一接触端子；21、第一接触片；201、第一部分；202、第二部分；211、第一接触臂；212、第二接触臂；213、第一运动弹片；214、第一卡槽；215、第一支架空间；22、接触片；221、运动弹片；23、接触片；24、第二接触片；241、第三接触臂；242、第四接触臂；243、第二运动弹片；244、第二卡槽；245、第二支架空间；30、第一支架；31、第一凸起部；32、第一凹陷部；40、堵头；41、卡块；42、凹槽；
500、第二连接器母端子；600、第一公端子；51、第二母端子主体；511、卡接槽；512、封堵部；52、第二接触端子；53、第二支架；531、第二凸起部；532、第二凹陷部；533、弹性延伸部。
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。除特殊说明的之外，本实施例中所采用到的材料及设备均可从市场购得。所述实施例的实例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解对本申请的限制。
在本申请的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或者位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，“多个”的含义是两个或两个以上，除非是另有精确具体地规定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连通”、“连接”应作广义理解，例如，可以使固定连接，也可以是通过中介媒介间相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
实施例一
接触端子，其用于电连接器中。请参照图1-5所示，接触端子主要包括第一接触片21和第一支架30。其中，第一接触片21设有第一接触臂211和第二接触臂212，第一接触片21优选采用冲压方式形成，冲裁方向与第一接触臂211或第二接触臂212的方向垂直，即第一接触片21两侧的薄边分别作为第一接触臂211和第二接触臂212。
使用冲压方式且冲裁方向与第一接触臂211或第二接触臂212的方向垂直的第一接触片21，可以避免由于模具制造等因素导致接触片宽度和间距不能减小的问题，可以确保公母端子的插拔力，同时更改冲件板材的厚度，可以减小单片接触间的宽度，使之可以在小尺寸端子上使用。
多个第一接触片21通过第一支架30串在一起，形成环形结构。第一接触臂211位于环形结构的内侧，第二接触臂212位于环形结构的外侧，相邻两个第一接触片21的冲裁面紧贴。第一接触臂211用于与公端子插接，实现电连接器功能，可见，在公端子插接于接触端子中时，与所有第一接触片21的第一接触臂211均实现接触。使用单片冲压件的接触片设计，可以确保即便是出现单片断线的情况下，其他的接触片还可以有效接触，确保接触方案的可靠性。
采用片式冲裁件，使电气接触由线簧的线接触变更为面接触，增加了接触面积，有效的减低了接触电阻，在增加端子载流的同时又具有线簧低插拔力的特性，从而达到增加载流能力，提高使用寿命的双重目的。
环形结构根据公端子的形状设置具体的形状，例如图1示出了圆环形结构，图19示出了矩形结构，当然，在其他的实施例中，也可以是椭圆形或者三角形或者其他多边形结构等。
另外，在本发明较佳的实施例中，第一接触臂211呈现双曲面结构，之所以设置为双曲面结构，可以增加其与公端子之间的接触面积，减小接触对（第一接触臂211和公端子）之间的接触电阻。
作为双曲面的一种实现方式，在本发明实施例一中，请参照图4所示，将第一接触臂211的两端向同一侧折弯，这里的同一侧，是指冲压面的一侧，从而使得整个第一接触臂211与公端子接触的端面为双曲面结构。
在本发明较佳的实施例中，第二接触臂212的一端或两端向远离所述第一接触臂211的一侧延伸设置有折弯部，折弯部用于接触端子安装于母端子主体时，与母端子主体的内壁接触。可以理解的是，折弯部具有一定的弹性，其可以调整公端子和母端子之间的插拔力。
在本发明较佳的实施例中，第一接触片21采用以第一接触臂211和第二接触臂212连接方向为对称轴（A轴）的轴对称结构，该A轴将第一接触片21划分为第一部分201和第二部分202，第一部分201和第二部分202的结构相同。
在本发明较佳的实施中，第一接触臂211和第二接触臂212之间位于A轴两侧均设置有第一卡槽214和第一运动弹片213，所述第一运动弹片213卡入相邻其他接触片的第一卡槽214中（图5示出了接触片22的运动弹片221卡入接触片23的卡槽）。在公端子插入接触端子时，使得所有的第一接触片21将会联动，所有第一接触片21形成一个联动的整体，确保接触的可靠性。
第一接触臂211和第二接触臂212以A轴为中心，二者的两端向同一侧折弯，第一运动弹片213的一端一体成型于第一卡槽214内，第一运动弹片213的另一端向远离第一接触臂211和第二接触臂212的折弯方向延伸。
在第一接触臂211和第二接触臂212之间位于A轴两侧还均设置有第一支架空间215，第一支架30穿于第一支架空间215中，将所有第一接触片21串成环形结构。请参照图6所示，第一支架30包括第一支架本体，所述第一支架本体上设置有断口，所述断口的一侧设置有第一凸起部31，所述断口的另一侧设置有与所述第一凸起部31配合的第一凹陷部32，所述第一凸起部31插接于所述第一凹陷部32时，使得所述支架本体形成环形结构。之所以设置第一凸起部31和第一凹陷部32，在于使得整个接触端子形成的环形大小在一定范围内浮动可调，确保连接的可靠性。
第一凸起部31可以使用楔型结构，当然，也可以使用其他形状。第一凹陷部32与第一凸起部31的形状相适配。
本发明实施例中接触片可以做得更密集，接触片之间既独立又联动，极端情况下即使出现单片断丝，对整体接触的影响也可忽略，我们将这种新的接触技术称为Bladetac技术。
实施例二
实施例二示出了另一种接触端子的结构。其通过扭转方式实现与公端子接触的接触端子的端面呈双曲面。
请参照图7-9所示，为示区分，将实施例二的接触片成为第二接触片24（对应实施例一中的第一接触片），将第二接触片24与公端子接触的一侧称为第三接触臂241（对应实施例一中的第一接触臂），将第二接触片24与母端子主体接触的一侧称为第四接触臂242（对应实施例一中的第二接触臂）。
在实施例二中，通过将第三接触臂241和第四接触臂242之间的连接部扭转一定的角度，从而使得以第四接触臂242为基准面的情况下，第三接触臂241呈双曲面结构。扭转角度根据需要设置，例如可以是2°或5°等。
另外，在实施例二中，与实施例一不同的是，第四接触臂242的两端并未设置折弯部，在一定程度上可以减小安装空间且增加第四接触臂242与母端子主体的接触面积。
在实施例二中，也设置有与支架配合的支架空间，成为第二支架空间245，以及相邻两第二接触片24配合的第二卡槽244和第二运动弹片243，与实施例一不同的是，第二弹片的另一端折弯向与第二卡槽244一体成型的第二弹片的一端贴合，从而可以减少安装空间。
与第二接触片24配合的支架结构可以与实施例一的结构相同，这里不再赘述。
实施例三
实施例三示出了一种电连接器的结构。其主要包括第一连接器母端子100。请参照图10-13所示，其示出了圆柱形的第一连接器母端子100，第一连接器母端子100包括第一母端子主体10、第一接触端子20以及堵头40。
其中，第一母端子主体10上开设有一容置空间，第一接触端子20安装于该容置空间中，堵头40封堵在容置空间的端部，用于阻止第一接触端子20在第一母端子主体10中轴向的运动。
第一接触端子20可以采用实施例一或实施例二任一种结构形式。例如图12和图13示出了使用实施例一的接触端子方式，第一接触片21的第二接触臂上设置的折弯部抵接在容置空间即第一母端子主体10的内壁上。
堵头40与第一母端子主体10的配合结构可以是螺纹连接或扣接或卡接等。在本发明较佳的实施例中，在容置空间的内壁上设置一个或多个卡环11，使用多个卡环11时，相邻卡环11之间设置有一定的间隙，在堵头40的侧面上设置有与卡环11配合的卡块41，堵头40安装于第一母端子主体10时，将卡块41伸入卡环11的下侧，旋转堵头40，使得堵头40连接在第一母端子主体10上，且堵头40的下端面与第一接触端子20抵接。
堵头40为中空结构，以保证第一公端子200能够穿过堵头40与第一接触端子20接触。在堵头40的内壁上沿堵头40的轴向设置有凹槽42，用于方便旋转该堵头40。
在一些其他的实施例中，还可以省去堵头40，直接在第一接触端子20的支架上设置一定的弹性延伸部，在第一母端子主体上开设卡接槽，直接将第一接触端子20卡接在第一母端子主体上，类似于图16的结构。
图14和图15示出了第一连接器母端子100和第一公端子200的配合结构，将第一公端子200插接于第一连接器母端子100中时，第一公端子200与第一接触端子20内侧的接触臂紧贴，又因为第一接触端子20内侧的接触臂呈双曲面结构，使得第一公端子200与其接触面为面接触方式，增加了接触面积，有效的减小了接触电阻，在增加端子载流的同时又具有线簧低插拔力的特性，从而达到增加载流能力，提高使用寿命的双重目的，保证了接触的可靠性和稳定性。
实施例四
实施例四示出了另一种连接器结构，与实施例三不同的是，实施例四中的连接结构为方形。
其主要包括第二连接器母端子500。请参照图18-19所示，其包括第二母端子主体51以及第二接触端子52。
其中，第二母端子主体51上开设有一容置空间，第二接触端子52安装于该容置空间中，在容置空间的一侧固定或一体成型有封堵部512，当然，该封堵部512也可以使用实施例三中的堵头结构。在容置空间上开设有卡接槽511，在第二接触端子52的两侧设置有与卡接槽511配合的弹性延伸部533，将第二接触端子52安装于第二母端子主体51时，只要将弹性延伸部533卡接于卡接槽511中，即可实现第二接触端子52在第二母端子主体51竖直方向的限位，当然，在一些其他的实施例中，也可以通过堵头将第二接触端子52封堵于容置空间中（采用两个堵头，或者一个堵头和一个封堵部的结构）。
第二接触端子52可以采用实施例一或实施例二任一种结构形式。
图16和图17示出了第二连接器母端子500和第二公端子600的配合结构，将第二公端子600插接于第二连接器母端子500中时，第二公端子600与第二接触端子52内侧的接触臂紧贴，又因为第二接触端子52内侧的接触臂呈双曲面结构，使得第二公端子600与其接触面为面接触方式，增加了接触面积，有效的减小了接触电阻，在增加端子载流的同时又具有线簧低插拔力的特性，从而达到增加载流能力，提高使用寿命的双重目的，保证了接触的可靠性和稳定性。
请参照图20所示，第二支架53为矩形（或称为方形），其结构可以与实施例一中的第一支架类似，第二支架53包括第二支架本体，所述第二支架本体上设置有断口，所述断口的一侧设置有第二凸起部531，所述断口的另一侧设置有与所述第二凸起部531配合的第二凹陷部532，所述第二凸起部531插接于所述第二凹陷部532时，使得所述支架本体形成环形（方形）结构。之所以设置第二凸起部531和第二凹陷部532，在于使得整个接触端子形成的环形大小在一定范围内浮动可调，确保连接的可靠性。
最后应说明的是：上述实施方式仅为本发明的可选实施例方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。
Claims (10)
- 一种接触端子，其特征在于，其包括支架以及多个接触片，所述支架将所述多个接触片串在一起，以使所述多个接触片形成环形结构，所述接触片包括第一接触臂和第二接触臂，所述第一接触臂位于所述环形结构的内侧，所述第二接触臂位于所述环形结构的外侧，所述第一接触臂呈双曲面结构。
- 根据权利要求1所述的接触端子，其特征在于，所述第一接触臂和第二接触臂之间通过连接部连接，所述连接部轴向扭转预设角度，以使所述第一接触臂呈双曲面结构，所述连接部的轴向为第一接触臂和第二连接臂的连接方向。
- 根据权利要求1所述的接触端子，其特征在于，所述第一接触臂的两端向同一侧折弯，以使所述第一接触臂呈双曲面结构。
- 根据权利要求1所述的接触端子，其特征在于，所述第二接触臂的一端或两端向远离所述第一接触臂的一侧延伸设置有折弯部。
- 根据权利要求1-4任一项所述的接触端子，其特征在于，所述第一接触臂和第二接触臂之间设置有支架空间，所述支架穿于所述支架空间中。
- 根据权利要求1-4任一项所述的接触端子，其特征在于，所述第一接触臂和第二接触臂之间设置有卡槽和运动弹片，所述运动弹片卡入相邻其他接触片的卡槽中。
- 根据权利要求1-4任一项所述的接触端子，其特征在于，所述支架包括支架本体，所述支架本体上设置有断口，所述断口的一侧设置有凸起部，所述断口的另一侧设置有与所述凸起部配合的凹陷部，所述凸起部插接于所述凹陷部时，使得所述支架本体形成环形结构。
- 一种电连接器，其特征在于，其包括母端子本体、堵头以及权利要求1-7任一项所述的接触端子，所述接触端子安装于所述母端子本体中，所述堵头与所述母端子本体配合，用于封堵所述接触端子，以限定所述接触端子在母端子本体竖直方向的移动。
- 根据权利要求8所述的电连接器，其特征在于，所述支架上设置有向外延伸的弹性延伸部，所述母端子本体上开设有与所述弹性延伸部配合的卡接槽，所述接触端子安装于所述母端子本体中时，所述弹性延伸部卡接于所述卡接槽中。
- 一种电子设备，其特征在于，其包括权利要求8-9任一项所述的电连接器。
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| CN206388900U (zh) * | 2016-12-28 | 2017-08-08 | 深圳特思嘉工业电子有限公司 | 连接器的弹性卡夹结构 |
| CN112054325A (zh) * | 2019-06-05 | 2020-12-08 | 泰科电子英国有限公司 | 接触端子 |
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| CN208173853U (zh) * | 2018-05-10 | 2018-11-30 | 新乡晨风绿能电气技术有限公司 | 一种高压大电流端子及其连接器 |
| CN209266628U (zh) * | 2018-12-20 | 2019-08-16 | 安费诺汽车连接系统（常州）有限公司 | 大电流端子 |
| CN110011100B (zh) * | 2019-05-15 | 2023-11-28 | 四川永贵科技有限公司 | 电连接器矩形簧片插孔端子 |
| CN111564719A (zh) * | 2020-05-25 | 2020-08-21 | 深圳市拓思普科技有限公司 | 一种电连接器及其接触件 |
| CN112072358B (zh) * | 2020-08-21 | 2022-05-20 | 乐清市八达光电科技股份有限公司 | 一种多重接触大电流弹性端子及具有其的连接器 |
| CN213959274U (zh) * | 2021-02-03 | 2021-08-13 | 河南天海电器有限公司 | 用于电连接器大电流传输组件 |
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| US20010019923A1 (en) * | 2000-01-20 | 2001-09-06 | Multi-Holding Ag | Contact element |
| CN201298615Y (zh) * | 2008-08-29 | 2009-08-26 | 广东吉熙安电缆附件有限公司 | 一种母线连接器 |
| CN206388900U (zh) * | 2016-12-28 | 2017-08-08 | 深圳特思嘉工业电子有限公司 | 连接器的弹性卡夹结构 |
| CN112054325A (zh) * | 2019-06-05 | 2020-12-08 | 泰科电子英国有限公司 | 接触端子 |
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