CN205583163U

CN205583163U - Spring piece

Info

Publication number: CN205583163U
Application number: CN201620289990.XU
Authority: CN
Inventors: 韦东秀; 韦福嗣; 吕雷; 刘明生; 刘鹏飞
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2016-04-08
Filing date: 2016-04-08
Publication date: 2016-09-14
Anticipated expiration: 2026-04-08

Abstract

The utility model provides a spring piece, package rubbing board form basal portion, from adj. Tabular basal portion one end is reverse bend the taut portion that forms, oneself take -up portion is terminal extend the elastic arm that forms, formed at contact site on the elastic arm, from the terminal orientation of elastic arm adj. Tabular basal portion bend and to the direction slope of take -up portion extend the support arm that forms, from the supporting part that supporting arm tail end upwards bent and forms, the support arm is neighbouring supporting part one end orientation the elastic arm direction is bent and is formed infolding portion, infolding portion makes the support arm the in -process that pushes down all the time with adj. Tabular basal portion is in unsettled state.

Description

Shell fragment

Technical field

The application relates to electric connector field, espespecially a kind of antenna connection shell fragment.

Background technology

Currently, slimming becomes the Main Trends of The Development of smart mobile phone, and the problem that mobile phone slimming brings is, mobile phone spare part needs to carry out ultrathin design simultaneously.Smart mobile phone typically requires the shell fragment of some antennas for being connected on phone housing, but after described shell fragment slimming, its elastic force is affected.

As it is shown in figure 1, existing shell fragment 10 include plate-like base 11, from described base portion 11 one end inverse bending formed tightening part 12, from described tightening part 12 be inclined upwardly extend formed elastic arm 13, be formed at described elastic arm 13 upper end contact site 14, from described elastic arm 13 end towards described plate-like base 11 tilt after extend in parallel formed support arm 15 and from described support arm 15 endways bending formed the strong point 16.After described contact arm 14 is pressed down against deformation, the described strong point 16 ' moves towards described tightening part 12, and described support arm 15 ' is gradually fitted near the position of the described strong point 16 ' described plate-like base 11, and then move to after making the described strong point on described support arm 15 ', the arm of force between described contact site 14 ' and the strong point is made to reduce, cause elastic force to weaken, easily make elastic arm 13 produce irreversible yield deformation.Positive force sunykatuib analysis figure to existing shell fragment as shown in Figure 5, shell fragment material uses NKT322-EH, when described contact site 14 is pressed downward against being reduced to the maximum compressibility (position of 14 ' in such as figure, under press 1mm), from the point of view of described elastic arm 13 rebound stroke, the peak of described contact site 14 cannot return back to initial peak position (i.e. origin position), and the set deformation volume that described elastic arm 13 produces is 0.064mm, reaches the 6.4% of decrement.The biggest irreversible mechanically deform has had a strong impact on the elastic performance that product is final, does not reaches the effect of customer requirement.

Utility model content

The purpose of the application is to provide the shell fragment that a kind of elastic force is good, mechanically deform is little.

For this, this application provides a kind of shell fragment, including plate-like base, the tightening part formed from described plate-like base one end inverse bending, the elastic arm formed is extended from described tightening part end, it is formed at the contact site on described elastic arm, towards described plate-like base bending and the support arm that extension is formed is tilted to described tightening part direction from described elastic arm end, the supporting part formed from described support arm end upwards bending, described support arm forms inflexed part adjacent to described supporting part one end towards the bending of described elastic arm direction, described inflexed part makes described support arm be in vacant state with described plate-like base all the time during pressure down.

Preferably, described elastic arm includes that being parallel to described plate-like base from described tightening part end extends the horizontal part formed and tilt upward, from described horizontal part end, the rake that extension is formed

Preferably, described contact site is the chondritic formed from described rake upwards punching stretch.

Preferably, described support arm is positioned at both lateral sides extension below described inflexed part and is formed with hook part, the front-end edge both sides bending of described plate-like base upwardly extends and is formed with alar part, and the upper end of described alar part extends rearwardly to form and is positioned at the pre-splenium above described hook part and carries out precompressed restriction with the height to described contact site.

Preferably, described hook part is between described supporting part and described inflexed part.

Compared to prior art, the application shell fragment is by forming inflexed part adjacent to supporting part position towards the bending of described elastic arm direction at described support arm, under described elastic arm during pressure, described support arm is in vacant state all the time and makes torque arm length constant, makes the pressure set deformation volume down of described shell fragment reduce.

Accompanying drawing explanation

Fig. 1 is to press schematic diagram under existing shell fragment duty；

Fig. 2 is the axonometric chart of the application shell fragment；

Fig. 3 is the sectional view of application shell fragment；

Fig. 4 is to press schematic diagram under the application shell fragment duty；

Fig. 5 is the positive force analysis chart of existing shell fragment；

Fig. 6 is the positive force analysis chart of the application shell fragment.

Detailed description of the invention

Refer to shown in Fig. 2, Fig. 3, the application shell fragment 20 include plate-like base 21, from described plate-like base 21 one end inverse bending formed tightening part 22, from described tightening part 22 end extend formed elastic arm 23, the contact site 24 being formed on described elastic arm 23, from described elastic arm 23 end towards the bending of described plate-like base 21 and to described tightening part 22 direction tilt extend formed support arm 25, from described support arm 25 end upwards bending formed supporting part 26.Described elastic arm 23 includes that being parallel to described plate-like base 21 from described tightening part 22 end extends the horizontal part 231 formed and tilt upward, from described horizontal part 231 end, the rake 232 that extension is formed, and described contact site 24 is the chondritic formed from described rake 232 upwards punching stretch.

Described support arm 25 forms inflexed part 29 adjacent to described supporting part 26 one end towards the bending of described elastic arm 23 direction.Described support arm 25 is positioned at both lateral sides extension below described inflexed part 29 and is formed with hook part 28, the front-end edge both sides bending of described plate-like base 21 upwardly extends and is formed with alar part 27, and the upper end of described alar part 27 extends rearwardly to form and is positioned at the pre-splenium 271 above described hook part 28 and carries out precompressed restriction with the height to described contact site 24.Described hook part 28 is between described supporting part 26 and described inflexed part 29.

Refer to shown in Fig. 4, when described contact site 24 ' is pressed down the duty of maximum, the top of described contact site 24 ' is concordant with the top of described alar part 27, described elastic arm 23 ', support arm 25 ' all produce downward elastic deformation, and described supporting part 26 ' slides towards described tightening part 22, but described supporting point position is in described supporting part 26 ' position all the time, the existence of described inflexed part 29 ' makes described support arm 25 ' and described plate-like base 21 be in the state of unsettled isolation all the time, makes the described arm of force keep constant.

Referring to shown in Fig. 6, compared with the positive force analysis of existing shell fragment, the shell fragment of the application uses identical material to design with structure, and difference is that support arm 25 is provided with inflexed part 29 adjacent to supporting part 26 one end.Analyze from figure and understand, described elastic arm 23 is after pressing stroke under once maximum, in described elastic arm rebound stroke, the peak of the contact site 24 on described elastic arm 23 will produce the permanent deformation of 0.027mm, for decrement 2.7%, compared to existing shell fragment, the set deformation volume of the application shell fragment significantly reduces, so that the elastic performance of product is improved.

Compared to prior art, the application shell fragment is by forming inflexed part 29 adjacent to supporting part 26 position towards the bending of described elastic arm 23 direction at described support arm 25, during 23 times pressures of described elastic arm, described support arm 25 is in vacant state all the time and makes torque arm length constant, makes the pressure set deformation volume down of described shell fragment reduce.

Claims

1. a shell fragment, including plate-like base, the tightening part formed from described plate-like base one end inverse bending, the elastic arm formed is extended from described tightening part end, it is formed at the contact site on described elastic arm, towards described plate-like base bending and the support arm that extension is formed is tilted to described tightening part direction from described elastic arm end, the supporting part formed from described support arm end upwards bending, it is characterized in that, described support arm forms inflexed part adjacent to described supporting part one end towards the bending of described elastic arm direction, described inflexed part makes described support arm be in vacant state with described plate-like base all the time during pressure down.

2. shell fragment as claimed in claim 1, it is characterised in that described elastic arm includes that being parallel to described plate-like base from described tightening part end extends the horizontal part formed and tilt upward, from described horizontal part end, the rake that extension is formed.

3. shell fragment as claimed in claim 2, it is characterised in that described contact site is the chondritic formed from described rake upwards punching stretch.

4. shell fragment as claimed in claim 1, it is characterized in that, described support arm is positioned at both lateral sides extension below described inflexed part and is formed with hook part, the front-end edge both sides bending of described plate-like base upwardly extends and is formed with alar part, and the upper end of described alar part extends rearwardly to form and is positioned at the pre-splenium above described hook part and carries out precompressed restriction with the height to described contact site.

5. shell fragment as claimed in claim 4, it is characterised in that described hook part is between described supporting part and described inflexed part.