CN207183558U - Contact flat spring and there is its terminal - Google Patents

Abstract

The utility model discloses a kind of contact flat spring and there is its terminal, the contact flat spring includes：Elastic sheet body；At least two contact heads, at least two contact heads are intervally installed in the same side of the elastic sheet body, one end of each contact head is connected with the elastic sheet body, and the other end of each contact head extends for free end and towards the direction of the elastic sheet body.According to contact flat spring of the present utility model, by the way that at least two contact heads are intervally installed in the same side of elastic sheet body, the contact performance of whole contact flat spring can be effectively ensured, reduce the loose contact rate of contact flat spring.

Description

Contact flat spring and there is its terminal

Technical field

Electronic device field is the utility model is related to, more particularly, to a kind of contact flat spring and there is its terminal.

Background technology

In correlation technique, contact flat spring can cause loose contact in the case where there is foreign matter, similarly, contact flat spring surrender It is also possible to cause loose contact, so as to reduce the contact performance of contact flat spring.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries Go out a kind of contact flat spring, the contact performance of the contact flat spring is good.

The utility model also proposes a kind of terminal with above-mentioned contact flat spring.

According to the contact flat spring of the utility model first aspect embodiment, including：Elastic sheet body；At least two contact heads, At least two contact heads are intervally installed in the same side of the elastic sheet body, one end of each contact head and institute State elastic sheet body to be connected, the other end of each contact head extends for free end and towards the direction of the elastic sheet body.

According to the contact flat spring of the utility model embodiment, by the way that at least two contact heads are intervally installed in shell fragment The same side of body, the contact performance of whole contact flat spring can be effectively ensured, reduce the loose contact rate of contact flat spring.

According to some embodiments of the utility model, at least two contact heads are arranged side by side.

According to some embodiments of the utility model, the contact head is two.

According to some embodiments of the utility model, the elastic sheet body is provided with two locating parts, and two described spacing Part is located at the both sides of at least two contact heads respectively, formed with spacing hole on each locating part, described at least two Connected between the other end of contact head by connector, the both ends of the connector are respectively protruding into two locating parts In the spacing hole.

According to some embodiments of the utility model, the side of the remote contact head of the connector, which is provided with, only to be supported Portion, a side surface of the direction elastic sheet body of the retaining part are formed towards the cambered surface of the elastic sheet body protrusion.

According to some embodiments of the utility model, the retaining part is located between two locating parts, and it is described only The both ends of support are spaced apart from each other with two locating parts.

According to some embodiments of the utility model, each contact head includes：Connecting portion, one end of the connecting portion It is connected with the elastic sheet body, the other end of the connecting portion is directed away from the direction extension of the elastic sheet body；Contact site, institute State that contact site is generally U-shaped, one end of the contact site is connected with the other end of the connecting portion, the contact site it is another One end extends towards the direction of the elastic sheet body

According to some embodiments of the utility model, the direction away from the elastic sheet body is provided with the contact site The contact projection of protrusion.

According to some embodiments of the utility model, the contact projection is located at shell fragment sheet described in the distance of the contact site The farthest of body.

According to some embodiments of the utility model, the contact projection is directed away from institute by a part for the contact site Protrude to be formed in the direction for stating elastic sheet body.

According to some embodiments of the utility model, at least two contact heads are integrally formed with the elastic sheet body.

Implement according to the terminal of the utility model second aspect embodiment, including according to the above-mentioned first aspect of the utility model The contact flat spring of example.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 is the stereogram according to the contact flat spring of the utility model embodiment；

Fig. 2 is the side view of the contact flat spring shown in Fig. 1；

Fig. 3 is the schematic diagram of the contact flat spring shown in Fig. 1；

Fig. 4 is the stereogram according to the terminal of the utility model embodiment；

Fig. 5 is the front view of the terminal shown in Fig. 4.

Reference：

100：Contact flat spring；

1：Elastic sheet body；11：Locating part；111：Spacing hole；

2：Contact head；21：Connecting portion；22：Contact site；221：Contact projection；

3：Connector；4：Retaining part；41：Cambered surface；

200：Terminal.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.In addition, define " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ". In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Contact flat spring 100 below with reference to Fig. 1-Fig. 3 descriptions according to the utility model first aspect embodiment.

As shown in Figure 1-Figure 3, according to the contact flat spring 100 of the utility model first aspect embodiment, including elastic sheet body 1 With at least two contact heads 2.

Specifically, at least two contact heads 2 are intervally installed in the same side of elastic sheet body 1 (for example, Fig. 1 and Fig. 2 In upside).Thus, by the way that multiple contact heads 2 to be arranged in the same side of elastic sheet body 1, and by multiple contact heads 2 each other It is arranged spaced apart, when in multiple contact heads 2 one of them or some due to foreign matter or other factorses cause loose contact when, In multiple contact heads 2 another or other still contact good, thereby may be ensured that the contact of whole contact flat spring 100 Energy, significantly reduce the loose contact rate of contact flat spring 100.

Alternatively, contact head 2 can be two shown in Fig. 1-Fig. 3.Here, it is necessary to illustrate, show in Fig. 1-Fig. 3 Two contact heads 2 shown for illustration purposes, but those of ordinary skill read the application technical scheme it Afterwards, it is clearly understood that and the program is applied in the technical scheme of three or more contact heads 2, this also falls into this practicality Within new protection domain.

One end (for example, left end in Fig. 2) of each contact head 2 is connected with elastic sheet body 1, each contact head 2 it is another It is free end to hold (for example, right-hand member in Fig. 2), and the above-mentioned other end of each contact head 2 prolongs towards the direction of elastic sheet body 1 Stretch.When contact flat spring 100 realizes that the above-mentioned other end of contact head 2 can be with bullet when contacting by contact head 2 with part to be contacted Piece body 1 is contacted and only supported, good so as to which contact flat spring 100 and above-mentioned component contact to be contacted is effectively ensured.Work as contact When shell fragment 100 is with isolation of components to be contacted, contact head 2 does not contact with part to be contacted, and now contact head 2 can be in the bullet of itself Its lower above-mentioned other end of power effect recovers to elastic sheet body 1 to separate.

According to the contact flat spring 100 of the utility model embodiment, by the way that at least two contact heads 2 are intervally installed The same side of elastic sheet body 1, the contact performance of whole contact flat spring 100 can be effectively ensured, reduce connecing for contact flat spring 100 Touch fraction defective.

According to some embodiments of the utility model, at least two contact heads 2 are arranged side by side.For example, referring to Fig. 1 and combine Fig. 2 and Fig. 3, two contact heads 2 are arranged side by side, now height all same of two contact heads 2 in elastic sheet body 1, and two The size of contact head 2, shape also all same, can so ensure when one of them in two contact heads 2 is due to different well When thing or other factorses cause loose contact, another in two contact heads 2 still can be good with component contact to be contacted, So as to which the contact performance of whole contact flat spring 100 further be effectively ensured, the contact of contact flat spring 100 is significantly reduced not Yield.Moreover, by the way that two contact heads 2 are arranged side by side, the volume of whole contact flat spring 100 can be effectively reduced, so as to subtract The space-consuming of small whole contact flat spring 100.

According to further embodiment of the present utility model, as shown in Figure 1-Figure 3, elastic sheet body 1 is provided with two locating parts 11, two locating parts 11 are located at the both sides of at least two contact heads 2 respectively, formed with spacing hole 111 on each locating part 11, extremely Connected between the above-mentioned other end of few two contact heads 2 by connector 3, the both ends of connector 3 are respectively protruding into two locating parts In 11 spacing hole 111.Thus, by setting locating part 11, the motion of connector 3 can be limited at locating part 11 well Spacing hole 111 in, due to being connected between the above-mentioned other end of multiple contact heads 2 by connector 3, so as to multiple contact heads 2 The motion of the above-mentioned other end can be defined well, thus, it is possible to be further ensured that contact head 2 and part to be contacted Contact is good.

For example, referring to Fig. 1 and Fig. 2 and Fig. 3 is combined, two contact heads 2 and the substantially face of elastic sheet body 1, two locating parts 11 and two contact heads 2 be respectively positioned on the same side of elastic sheet body 1, and two locating parts 11 are connected to the phase each other of elastic sheet body 1 To two sides on, now two locating parts 11 on the outside of two contact heads 2, each locating part 11 formed with along limiting The spacing hole 111 of the thickness direction insertion of position part 11, is connected between the free end of two contact heads 2, and connect by connector 3 The both ends of part 3 are respectively protruding into the spacing hole 111 of corresponding locating part 11, and thus, the motion of the free end of two contact heads 2 can To be limited at well in the spacing hole 111 of locating part 11.Here, it is necessary to which explanation, direction " outer " can be understood as far From the direction at the center of elastic sheet body 1, its opposite direction is defined as " interior ", that is, is directed away from the direction at the center of elastic sheet body 1.Can With understanding, spacing hole 111 can also be blind hole (not shown).

Further, as shown in Figures 2 and 3, the side of the remote contact head 2 of connector 3 is (for example, under in Fig. 2 Side) retaining part 4 is provided with, the side surface towards elastic sheet body 1 of retaining part 4 is formed towards the cambered surface of the protrusion of elastic sheet body 1 41.The now contact between retaining part 4 and elastic sheet body 1 is linear contact lay.Thus, connect in contact flat spring 100 and part to be contacted In tactile process, the friction between retaining part 4 and elastic sheet body 1 and frictional resistance can be effectively reduced, retaining part 4 can be more Add and swimmingly moved in elastic sheet body 1, so as to better ensure that the contact performance of contact flat spring 100, and retaining part 4 is not It is easy to wear, so as to extend the service life of contact flat spring 100.Wherein, for the ease of processing, and material cost is saved, can be with Whole retaining part 4 is processed into arcuate structure.

Alternatively, reference picture 3, retaining part 4 are located between two locating parts 11, and the both ends of retaining part 4 and two it is spacing Part 11 is spaced apart from each other.Now the length of retaining part 4 is less than the length of connector 3.Thus, retaining part 4 and shell fragment are reduced The contact length of body 1, so as to further reduce friction and the frictional resistance between retaining part 4 and elastic sheet body 1, enter And the contact performance of contact flat spring 100 can be further better ensured that, further extend contact flat spring 100 uses the longevity Life.

According to some specific embodiments of the present utility model, as depicted in figs. 1 and 2, each contact head 2 includes：Connecting portion 21 and contact site 22, one end (for example, left end in Fig. 2) of connecting portion 21 be connected with elastic sheet body 1, the other end of connecting portion 21 (for example, right-hand member in Fig. 2) is directed away from the direction extension of elastic sheet body 1, and contact site 22 is generally U-shaped, and the one of contact site 22 End (for example, upper end in Fig. 2) is connected with the above-mentioned other end of connecting portion 21, and the other end of contact site 22 is (for example, in Fig. 2 Lower end) extend towards the direction of elastic sheet body 1.Thus, by setting the above-mentioned contact head including connecting portion 21 and contact site 22 2, generally U-shaped contact site 22 can protrude towards the direction of part to be contacted, so as to realize contact site 22 well The contact between part to be contacted, and ensure to contact between contact site 22 and part to be contacted well.

Alternatively, connecting portion 21 can be plate-like structure, as depicted in figs. 1 and 2, thus, facilitate connecting portion 21 Processing, and the material of connecting portion 21 is saved, so as to reduce cost.Certainly, the utility model not limited to this, connecting portion 21 Can also be bent platy structure, such as arcuate structure (not shown) etc..

As shown in Figure 1-Figure 3, the contact projection 221 that the direction away from elastic sheet body 1 is protruded is provided with contact site 22. When contact flat spring 100 and during component contact to be contacted, contact flat spring 100 can by the contact projection 221 on contact site 22 with Part to be contacted realizes contact.Thus, by setting contact projection 221, can be better achieved contact flat spring 100 with it is to be contacted Contact between part.

Preferably, contact projection 221 be located at contact site 22 apart from the farthest of elastic sheet body 1, as shown in Fig. 2 so Contact flat spring 100 can be effectively ensured and component contact to be contacted is good.

Wherein, contact projection 221 can be directed away from the direction protrusion shape of elastic sheet body 1 by a part for contact site 22 Into.Thus, it is possible to the materials of contact flat spring 100 are effectively saved, so as to reduce cost.

Alternatively, at least two contact heads 2 are integrally formed with elastic sheet body 1.Now whole contact flat spring 100 is integrated into Type part.Thus, it is possible to effectively save the manufacturing procedure of contact flat spring 100, the production efficiency of contact flat spring 100 is improved.

According to the contact flat spring 100 of the utility model embodiment, by setting at least two contact heads 2, can protect comprehensively Demonstrate,prove the reliability of contact flat spring 100.

As shown in Figure 4 and Figure 5, according to the terminal 200 of the utility model second aspect embodiment, including it is new according to this practicality The contact flat spring 100 of the above-mentioned first aspect embodiment of type.

Include, but are not limited to be configured to connect (such as via public via Wireline as terminal 200 as used herein Switched telephone network (PSTN), digital subscriber line (DSL), digital cable, Direct cable connection, and/or another data connect Connect/network) and/or via (for example, being directed to the DTV of cellular network, WLAN (WLAN), such as DVB-H networks Network, satellite network, AM-FM broadcasting transmitter, and/or another communication terminal 200) wave point reception/transmission communication The device of signal.Be configured to can be referred to as by the communication terminal 200 of radio interface communication " wireless communication terminal 200 ", " wireless terminal 200 " and/or " mobile terminal 200 ".The example of mobile terminal 200 includes, but are not limited to satellite or honeycomb electricity Words；Can be whole with combination cellular radio telephone and the PCS Personal Communications System (PCS) of data processing, fax and its communication ability End 200；Can include radio telephone, pager, the Internet/intranet access, Web browser, memo pad, calendar and/ Or the PDA of global positioning system (GPS) receiver；And conventional laptop and/or palmtop receiver or electric including radio Talk about other electronic installations of transceiver.

In some embodiments of the utility model, terminal 200 can various can obtain data and to this from outside The equipment that data are handled, or, terminal 200 can be it is various be built-in with battery, and electric current can be obtained from outside to this The equipment that battery is charged, for example, mobile phone, tablet personal computer, computing device or device for display of message etc..

The terminal 200 being applicable by taking mobile phone as an example the utility model is introduced.In some implementations of the present utility model In example, mobile phone can include radio circuit, memory, input block, Wireless Fidelity (WiFi, wireless fidelity) mould The parts such as block, display unit, sensor, voicefrequency circuit, processor, projecting cell, shooting unit, battery.

Radio circuit can be used for receive and send messages or communication process in, the reception and transmission of signal, especially, by base station After downlink information receives, processor processing is given；In addition, the up data of mobile phone are sent to base station.Generally, radio circuit includes But it is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, radio frequency electrical Road can also be communicated by radio communication with network and other equipment.Above-mentioned radio communication can use any communication standard or association View, including but not limited to global system for mobile communications (GSM, Global System for Mobile communication), General packet radio service (GPRS, General Packet Radio Service), CDMA (CDMA, Code Division Multiple Access), WCDMA (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term Evolution), Email, Short Message Service (SMS, Short Messaging Service) etc..

Wherein, memory can be used for storage software program and module, and processor is stored in the soft of memory by operation Part program and module, so as to perform the various function application of mobile phone and data processing.Memory can mainly include storage journey Sequence area and storage data field, wherein, storing program area can storage program area, the application program needed at least one function (such as Sound-playing function, image player function etc.) etc.；Storage data field can store uses created data (such as according to mobile phone Voice data, phone directory etc.) etc..In addition, memory can include high-speed random access memory, can also include non-volatile Memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.

Input block can be used for the numeral or character information for receiving input, and the user of generation and mobile phone sets and work( Relevant key signals can be controlled.Specifically, input block may include contact panel and other input equipments.Contact panel, Referred to as touch-screen, collecting touch operation of the user on or near it, (for example user is any suitable using finger, stylus etc. The operation of object or annex on contact panel or near contact panel), and driven accordingly according to formula set in advance Attachment means.Optionally, contact panel may include both touch detecting apparatus and touch controller.Wherein, touch detection Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor, and can receiving area Manage the order that device is sent and performed.It is furthermore, it is possible to a variety of using resistance-type, condenser type, infrared ray and surface acoustic wave etc. Type realizes contact panel.Except contact panel, input block can also include other input equipments.Specifically, other are inputted Equipment can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, One or more in action bars etc..

Wherein, display unit can be used for display by user input information or be supplied to user information and mobile phone it is each Kind menu.Display unit may include display panel, optionally, can use liquid crystal display (LCD, Liquid Crystal Display), the form such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configures display surface Plate.Further, contact panel can cover display panel, after contact panel detects the touch operation on or near it, Processor is sent to determine the type of touch event, device is followed by subsequent processing and is provided on a display panel according to the type of touch event Corresponding visual output.

Wherein, the position in the outer display panel of the visual output that the human eye can identify, can be used as aftermentioned " viewing area Domain ".Contact panel and the display panel part independent as two can be realized the input of mobile phone and output function, also may be used Input and the output function of mobile phone are realized so that contact panel and display panel is integrated.

In addition, mobile phone may also include at least one sensor, such as attitude transducer, optical sensor and other sensings Device.

Specifically, attitude transducer is referred to as motion sensor, also, as one kind of the motion sensor, can To enumerate gravity sensor, cantilevered shifter is made using elastic sensing element in gravity sensor, and using the sensitive member of elasticity Energy-stored spring made of part drives electric contact, so as to realizing the change that Gravity changer is converted into electric signal.

As the another kind of motion sensor, accelerometer sensor can be enumerated, accelerometer sensor can detect all directions Upper (generally three axles) acceleration magnitude, can detect that size and the direction of gravity, available for identification mobile phone posture when static (for example pedometer, struck using (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function Hit) etc..

In some embodiments of the utility model, motion sensor listed above can be used aftermentioned as obtaining " attitude parameter " element, but this is not limited to, other sensors that can obtain " attitude parameter " each fall within the utility model Protection domain in, for example, gyroscope etc., also, the operation principle of the gyroscope and data handling procedure can be with existing skills Art is similar, and here, in order to avoid repeating, description is omitted.

In addition, in the utility model embodiment, as sensor, barometer, hygrometer, thermometer and red can also configure The other sensors such as outside line sensor, will not be repeated here.

Optical sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to ambient light The light and shade of line adjusts the brightness of display panel, proximity transducer can when mobile phone is moved in one's ear, close display panel and/or Backlight.

Voicefrequency circuit, loudspeaker and microphone can provide the COBBAIF between user and mobile phone.Voicefrequency circuit will can connect Electric signal after the voice data conversion received, is transferred to loudspeaker, and voice signal output is converted to by loudspeaker；The opposing party The voice signal of collection is converted to electric signal by face, microphone, is converted to voice data after being received by voicefrequency circuit, then by audio After the processing of data output processing device, through radio circuit to be sent to such as another mobile phone, or voice data exported to storage Device is further to handle.

WiFi belongs to short range wireless transmission technology, mobile phone can help user to send and receive e-mail by WiFi module, Browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.It is understood that WiFi Module is simultaneously not belonging to must be configured into for mobile phone, can be saved as needed in the essential scope for do not change utility model completely Slightly.

Processor is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, is passed through Operation performs the software program and/or module being stored in memory, and calls the data being stored in memory, performs The various functions and processing data of mobile phone, so as to carry out integral monitoring to mobile phone.Optionally, processor may include one or more Processing unit；Preferably, processor can integrate application processor and modem processor, wherein, application processor is mainly located Operating system, user interface and application program etc. are managed, modem processor mainly handles radio communication.

It is understood that above-mentioned modem processor can not also be integrated into processor.

Also, the processor can perform same or similar with processing unit as the element of realizing of above-mentioned processing unit Function.

Mobile phone also includes the power supply (such as battery) to all parts power supply.

Preferably, power supply can be logically contiguous with processor by power-supply management system, so as to pass through power-supply management system Realize the functions such as management charging, electric discharge and power managed.Although being not shown, mobile phone can also be including bluetooth module etc., herein Repeat no more.

It should be noted that mobile phone is only a kind of citing of the equipment of terminal 200, the utility model is simultaneously not particularly limited, this Utility model can apply to the electronic equipments such as mobile phone, tablet personal computer, and the utility model is not limited this.

Formed according to other of the terminal 200 of the utility model embodiment such as mobile phone and operation is general for this area All it is known for logical technical staff, is not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that： These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (12)

1. A kind of 1. contact flat spring, it is characterised in that including：

   Elastic sheet body；

   At least two contact heads, at least two contact heads are intervally installed in the same side of the elastic sheet body, each One end of the contact head is connected with the elastic sheet body, and the other end of each contact head is for free end and towards the bullet The direction extension of piece body.
2. 2. contact flat spring according to claim 1, it is characterised in that at least two contact heads are arranged side by side.
3. 3. contact flat spring according to claim 1, it is characterised in that the contact head is two.
4. 4. according to the contact flat spring any one of claim 1-3, it is characterised in that the elastic sheet body is provided with two Locating part, two locating parts are located at the both sides of at least two contact heads respectively, on each locating part formed with Spacing hole,

   Connected between the other end of at least two contact heads by connector, the both ends of the connector are respectively protruding into In the spacing hole of two locating parts.
5. 5. contact flat spring according to claim 4, it is characterised in that the side of the remote contact head of the connector Provided with retaining part, a side surface of the direction elastic sheet body of the retaining part is formed towards the elastic sheet body protrusion Cambered surface.
6. 6. contact flat spring according to claim 5, it is characterised in that the retaining part be located at two locating parts it Between, and the both ends of the retaining part are spaced apart from each other with two locating parts.
7. 7. contact flat spring according to claim 1, it is characterised in that each contact head includes：

   Connecting portion, one end of the connecting portion are connected with the elastic sheet body, and the other end of the connecting portion is directed away from described The direction extension of elastic sheet body；

   Contact site, the contact site is generally U-shaped, and one end of the contact site is connected with the other end of the connecting portion, The other end of the contact site extends towards the direction of the elastic sheet body.
8. 8. contact flat spring according to claim 7, it is characterised in that be provided with the contact site away from the shell fragment The contact projection of the direction protrusion of body.
9. 9. contact flat spring according to claim 8, it is characterised in that the contact projection is located at the distance of the contact site The farthest of the elastic sheet body.
10. 10. contact flat spring according to claim 8, it is characterised in that the contact projection is by one of the contact site The direction for being directed away from the elastic sheet body is divided to protrude to be formed.
11. 11. contact flat spring according to claim 1, it is characterised in that at least two contact heads and the shell fragment sheet Body by integral forming.
12. 12. a kind of terminal, it is characterised in that including the contact flat spring according to any one of claim 1-11.