CN100517874C - Conductive terminal - Google Patents

Abstract

The invention discloses a conductive terminal, mainly used in mobile phone, gamer and player (as MP3)or the like. The conductive terminal comprises a muffle, an elastic element, a contact connector and a contact element. The muffle is cylinder with one sealed end and an opening on another end. The elastic element is contained in the muffle, which one end is contacted with the sealed end. The contact connector is partly contained in the muffle, which can move relative to the muffle. The contact element is contained in the muffle, between the elastic element and the contact element. The contact element and the contact connector respectively comprise a contact surface contacted with each other. The contact element via the elastic force of the elastic element pushes the contact connector spiral line. The contact element pushes the contact connector incline, to make the muffle and the contact connector is better contact, thereby holding better electric connection between the electronic elements of electronic product connected via the conductive terminal, or between printed circuit boards.

Description

Conducting terminal

Technical field

The invention relates to a kind of electric elements, especially be used to realize the elastic conduction terminal that electrically connects between the electronic devices and components about a kind of.

Background technology

The main frame of electronic installations such as mobile phone normally is connected by the chip connector with battery, and between printed circuit board (PCB) and the printed circuit board (PCB), be connected by lead usually between printed circuit board (PCB) and other electronic devices and components.

The chip connector is by the sheet metal brake forming, and elasticity own is not strong, can produce phenomenons such as elasticity deficiency, contact instability after use a period of time, thereby influences the use of electronic installations such as mobile phone.And the chip electronic connector takes up room greatlyyer, is unfavorable for that electronic installations such as mobile phone develop towards miniaturization, have deviated from the developing direction of the market demand.

And adopt the connected mode of electric wire because the restriction of wire length, so easily twine in use, cause and use inconvenience, in addition, when mounted, the electric wire two ends need be fixed on printed circuit board (PCB) or the electronic devices and components with modes such as welding, comparatively complicated, and there is complex structure in the electric wire connection, influences problems such as attractive in appearance.

Summary of the invention

In view of above content, be necessary to provide a kind of easy for installation, good stable conducting terminal of contact.

A kind of conducting terminal comprises sleeve, elastic component, touches element and butt element.Described sleeve is a tubular, the sealing of one end, and the other end offers an opening.Described elastic component is contained in the sleeve, and elastic component one end butt sleeve blind end.Touch componentry and be contained in the sleeve, it can move relative to sleeve.Described butt element is contained in the sleeve, it is at elastic component and touch between the element, butt element and touch the contact-making surface that element comprises a mutual butt respectively, the butt element touches element by the oblique pushing and pressing of the elastic force of elastic component, this butt element is the butt post, and it comprises abutting part and shrinking section, and the contact-making surface of this butt element is located on its abutting part, this abutting part is combined by cylinder and hemisphere, and the hemisphere of this shrinking section and abutting part lays respectively at the cylinder two ends of abutting part.

Compare prior art, the pushing and pressing of the butt element of described conducting terminal touch element, make sleeve and touch element contact well, thereby make by between the electronic devices and components of conducting terminal connection or maintenance electric connection preferably between the printed circuit board (PCB).

Description of drawings

Fig. 1 is the three-dimensional exploded view of conducting terminal first embodiment of the present invention;

Fig. 2 is the cutaway view of conducting terminal first embodiment of the present invention;

Fig. 3 is the three-dimensional exploded view of conducting terminal second embodiment of the present invention;

Fig. 4 is the cutaway view of conducting terminal second embodiment of the present invention.

Embodiment

Conducting terminal of the present invention is mainly used in mobile phone, game machine and player electronic products such as (as MP3).See also Fig. 1 and Fig. 2, the described conducting terminal 20 of the first embodiment of the present invention can be used for being electrically connected two electronic devices and components, comprise a sleeve 22, elastic component 24, one touch element 26 and a butt ball 28.

Described sleeve 22 is a tubular, and it comprises the cylinder that the multistage external diameter is different.Sleeve 22 is made by metal material, and its surfaces externally and internally can be gold-plated.Sleeve 22 comprises one first end 222 and one and first end, 222 second opposed end 224.First end, 222 sealings of sleeve 22, second end 224 offers an opening 226.Sleeve 22 also comprises a flange part 228, and conducting terminal 20 is installed to after electronic installation etc. goes up, position-limiting action when this flange part 228 is mounted to electronic installation etc. in conducting terminal 20.Sleeve 22 inner hollow outs, thus a containing cavity 229 in sleeve 22, formed, and this containing cavity 229 is by opening 226 and sleeve 22 external communications.Described containing cavity 229 is used to hold elastic component 24, butt ball 28 and touches element 26.Touch element 26 parts and be contained in this containing cavity 229, it can move relative to sleeve 22, makes the extended sleeve of its another part 22 outer or be contained in the sleeve 22, and butt ball 28 is at elastic component 24 and touch between the element 26.

Described elastic component 24 is the column compression spring of planar end surface for end face, and it comprises some spring coils, and in the present embodiment, all spring coil sizes are consistent.Containing cavity 229 bottoms of one end butt sleeve 22 of elastic component 24, promptly near first end, 222 places, the other end butt butt ball 28 of elastic component 24.When conducting terminal 20 assemblings were complete, elastic component 24 was in compressive state.

The described element 26 that touches comprises a base portion 262 and a contacting part 264.This base portion 262 and contacting part 264 are cylindric, and the diameter of base portion 262 is greater than the diameter of contacting part 264, thereby form a shoulder 266 in base portion 262 and contacting part 264 joints.The diameter of base portion 262 is slightly smaller than the internal diameter of sleeve 22.Base portion 262 and contacting part 264 relative ends have an inclined-plane 268, this inclined-plane 268 and butt ball 28 against.Butt ball 28 touches the contacting part 264 of element 26 by the oblique pushing and pressing of the elastic force of elastic component 24, and contacting part 264 makes from opening of sleeve 22 and 226 stretches out sleeve 22.Touch element 26 and made by metal material, its surface can be gold-plated.

Described butt ball 28 is an orbicule, and its diameter is a bit larger tham the spring coil internal diameter of elastic component 24, thereby makes butt ball 28 butt elastic components 24 ends, and is unlikely to roll into fully in the space of spring coil formation.

During assembling, after elastic component 24, butt ball 28 and the contacting part 264 that touches element 26 placed the containing cavity 229 of sleeve 22 successively, with second end, 224 edges of sleeve 22 towards inner bending, thereby the opening 226 that makes sleeve 22 is less than the base portion 262 that touches element 26, thus, the shoulder 266 that touches element 26 is against sleeve 22 and opens 226 edges and this base portion 262 can not be stretched out outside the sleeve 22.Touch element 26 and butt ball 28 and under the elastic force effect of elastic component 24 pushing and pressing, result from the trend that moves along sleeve 22 axis directions in the containing cavity 229 of sleeve 22.Because butt ball 28 is spherical, and owing to touch the existence of element 26 inclined-planes 268 and butt ball 28, even the end face of elastic component 24 is a planar end surface, touching element 26 still can have a down dip in the pushing and pressing of butt ball 28, sleeve 22 is contacted well with the base portion 262 that touches element 26, keep electrically connecting preferably thereby make between the electronic devices and components that connect by conducting terminal 20 or between the printed circuit board (PCB).

When using described conducting terminal 20, the flange part 228 of its sleeve 22 blocks in the housing that is set to electronic products such as mobile phone, and in housing, can move along conducting terminal 20 axis directions, sleeve 22 first ends 222 of conducting terminal 20 are member of butt slidably, contacting part 264 ends that touch element 26 are another member of butt slidably, thereby electrically connects described two members.

See also Fig. 3 and Fig. 4, the described conducting terminal 40 of the second embodiment of the present invention comprise a sleeve 42, elastic component 44, one touch element 46 and a butt post 48.Conducting terminal 40 is except butt post 48, and remainder is all identical with conducting terminal 20, that is, sleeve 42 is identical with sleeve 22, and elastic component 44 and elastic component be 24 identical, touch element 46 and to touch element 26 identical.This butt post 48 comprises an abutting part 482 and a shrinking section 484.This abutting part 482 is combined by a cylinder and a hemisphere, the hemisphere of shrinking section 484 and abutting part 482 lays respectively at the cylinder two ends of abutting part 482, hemispheroidal plane and cylinder end face are fitted, and the hemisphere diameter is identical with the cylinder diameter of section.Shrinking section 484 is cylindric.The diameter of section of shrinking section 484 is less than the internal diameter of elastic component 44 spring coils, and abutting part 482 cylindrical diameter of sections are greater than the internal diameter of elastic component 44 spring coils.The hemisphere portion butt of abutting part 482 touches element 46, and shrinking section 484 is inserted in the spring coil of elastic component 44.Identical with conducting terminal 20, because the hemisphere portion of abutting part 482 is spherical, and owing to touch the existence of element 46 inclined-planes and butt post 48, even the end face of elastic component 44 is a planar end surface, touching element 46 still can have a down dip in the pushing and pressing of butt post 48, make sleeve 42 and to touch contacting of element 46 good, keep electrically connecting preferably thereby make between the electronic devices and components that connect by conducting terminal 40 or between the printed circuit board (PCB).

Be appreciated that, be not limited to spherical butt ball 28 among first embodiment and the butt post 48 among second embodiment with the butt element that touches element 26,46 butts, it can be other smooth convex surfaces with the contact-making surface that touches element 26,46 butts or the conical surface touches element 26,46 butts with pushing and pressing.But touch the contact-making surface shape mutual alternative that element 26,46 and butt element are in contact with one another, the contact-making surface that promptly touches element 26,46 and butt element butt is the described smooth convex surface or the conical surface, and the butt element is the inclined-plane with the contact-making surface that touches element 26,46 butts.Touch the contact-making surface that element 26,46 and butt element be in contact with one another and to be the inclined-plane, also can be smooth convex surface.

Claims (10)

1. A conductive terminal, comprising a sleeve, an elastic member and a contact element, the sleeve is cylindrical, one end is closed, and the other end is provided with an opening, the elastic member is accommodated in the sleeve, and the elastic member One end abuts against the closed end of the sleeve, and the contact element is partly accommodated in the sleeve, which can move relative to the sleeve. Located between the elastic piece and the contact element, the abutment element and the contact element respectively include a contact surface that abuts against each other, and the abutment element obliquely pushes the abutment element by the elastic force of the elastic piece, and the abutment element is an abutment column , which includes an abutting portion and a fitting section, the contact surface of the abutting element is set on the abutting portion, the abutting portion is composed of a cylinder and a hemisphere, the hemisphere of the fitting section and the abutting portion The bodies are respectively located at the two ends of the cylinder of the abutting portion. 2. The conductive terminal according to claim 1, wherein the sleeve has an accommodating cavity. 3. The conductive terminal according to claim 1, wherein the sleeve includes a flange portion for installation and positioning. 4. The conductive terminal according to claim 1, wherein the sleeve is made of metal material, and its inner and outer surfaces are plated with gold. 5 . The conductive terminal according to claim 1 , wherein the elastic member is a cylindrical spring, which includes a plurality of coils of the same size. 6 . 6. The conductive terminal according to claim 1, wherein the contact element is made of metal material, and its surface is plated with gold. 7. The conductive terminal according to claim 1, wherein the contact element comprises a base and a contact portion in contact with the base, the base is larger than the opening of the sleeve and is always accommodated in the sleeve, the contact portion is smaller than The sleeve is open and can extend out of the sleeve. 8 . The conductive terminal according to claim 5 , wherein the plane of the hemisphere of the abutting part of the abutting element is in contact with the end surface of the cylinder, and the diameter of the hemisphere is the same as the cross-sectional diameter of the cylinder. 9. The conductive terminal according to claim 8, characterized in that: the cross-sectional diameter of the fitting section of the abutting element is smaller than the inner diameter of the coil of the elastic member, and the diameter of the cross-section of the cylindrical body of the abutting part is larger than the coil of the elastic member The inner diameter of the abutting element is inserted into the coil of the elastic member by the fitting section of the abutting element. 10. The conductive terminal according to claim 1, characterized in that: the contact surface of the abutment element is any one of a smooth convex surface, a tapered surface and an inclined surface, and the contact surface of the contact element is a smooth convex surface, a tapered surface Any one of face and slope.

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