CN219676100U - Elastic flat probe and connector comprising same - Google Patents

Abstract

The utility model discloses an elastic flat probe and a connector comprising the same, which belong to the technical field of signal transmission and test. The elastic flat probe has a simple structure, is easy to process, can meet the requirements of high-speed signal transmission and high-current test of electronic components, and ensures the accuracy and efficiency of the conduction test; moreover, the elastic flat probe is integrally formed, and the service life is not influenced by internal friction in the test compression process, so that the service life of the elastic flat probe can reach more than 3-5 times of that of a conventional probe, and the elastic flat probe has good economic benefit and practical value.

Description

Elastic flat probe and connector comprising same

Technical Field

The utility model belongs to the technical field of signal transmission and testing, and particularly relates to an elastic flat probe and a connector comprising the same.

Background

In the manufacturing process of electronic component modules such as liquid crystal panels and integrated circuits, it is often necessary to perform processes such as conduction detection and operation characteristic inspection, and it is often necessary to connect a main substrate of the electronic component module to an FPC contact electrode using a probe, or to connect an electrode portion of the substrate to a detection device, thereby completing the corresponding detection operation.

In general, a test probe has a pair of contacts that can be brought into contact with electrode terminals of an electronic component and electrode terminals of a connected electronic component, respectively, and an elastic portion that connects between the pair of contacts, and the contact pressure between the contacts and the electrode terminals of the electronic component and the electrode terminals of the connected electronic component is ensured by the elastic portion, thereby improving the contact reliability between the electrode terminals of the electronic component and the electrode terminals of the connected electronic component.

With the continuous development of the electronic industry, electronic products are more and more, the requirements for conducting tests of electronic components are more and more, and higher requirements for the speed and quality of signal transmission are also put forward, so that the conventional probes cannot meet the requirements of practical application. Generally, the thicker the sectional area of the probe is, the smaller the conductive resistance is, the faster the signal transmission speed is, and the larger the overcurrent capacity of the probe is; accordingly, the shorter the transmission path of the probe, the higher the signal transmission quality. As such, in the prior art, various designs have been made for the structural form of the probe for test in order to obtain a probe with better comprehensive performance; however, the comprehensive performance of most probes still cannot fully meet the requirements of practical applications, and the service life of the probes is often short, so that certain use limitations exist.

Disclosure of Invention

Aiming at one or more of the defects or improvement demands of the prior art, the utility model provides an elastic flat probe and a connector comprising the same, which can ensure that two ends of the probe are abutted against corresponding parts and accurately complete a test process, realize high-current test of the probe, prolong the service life of the probe and ensure the precision and efficiency of the test of the probe.

In order to achieve the above object, according to one aspect of the present utility model, there is provided an elastic flat probe including a first contact portion, an elastic portion, and a second contact portion sequentially arranged in a first direction with respect to a probe operation direction; the two contact parts extend along the first direction respectively, and contact parts are formed at two ends which deviate from each other respectively;

a first limiting part is arranged on one side of the first contact part, which is away from one end of the contact part; a second limiting part is arranged on one side of the second contact part, which is away from one end of the contact part; the two limit parts are respectively arranged in an extending way in a second direction formed in the width direction of the probe; arc-shaped protruding blocks are respectively arranged on the adjacent end parts of the two contact parts;

the elastic part comprises at least two strip-shaped elastic sheets; each strip-shaped elastic sheet is sequentially arranged at intervals and extends in a bending way between the two contact parts; and is also provided with

The at least two strip-shaped elastic pieces at least comprise a first strip-shaped elastic piece, two ends of the first strip-shaped elastic piece are respectively connected with the end parts of the two limiting parts, and a first elastic piece unit is formed between the two limiting parts; the at least two strip-shaped elastic pieces at least comprise a second strip-shaped elastic piece, two ends of the second strip-shaped elastic piece are connected with one side of the two arc-shaped protruding blocks in the second direction, and a second elastic piece unit is formed between the two arc-shaped protruding blocks.

As a further improvement of the utility model, the second strip-shaped elastic sheet is one, and two ends of the second strip-shaped elastic sheet are respectively connected with one side of the corresponding arc-shaped convex block in the second direction by the arc-shaped section with gradually changed width, so that the arc-shaped wall surfaces of the two arc-shaped convex blocks are respectively butted with the arc-shaped surface of one side, deviating from the first strip-shaped elastic sheet, of the corresponding arc-shaped section to form a continuous arc-shaped extension wall surface.

As a further improvement of the utility model, a clearance gap is arranged corresponding to at least one limit part;

the clearance space is arranged at one side of the second direction of the corresponding contact part, is arranged at the connecting corner position of the limiting part and the corresponding contact part, and is positioned at one side of the limiting part deviating from the corresponding arc-shaped convex block.

As a further improvement of the present utility model, the first spring unit includes two band-shaped spring plates disposed at intervals.

As a further improvement of the present utility model, the band spring includes an odd number of bent portions connected sequentially at end portions, and the first contact portion and the second contact portion are positioned on the same side in the second direction of the probe.

As a further improvement of the utility model, the strip-shaped elastic sheet comprises a first bending part, a second bending part and a third bending part which are sequentially connected with each other by end tangents, and a connecting line of the center of the first bending part and the center of the third bending part extends along a first direction.

As a further improvement of the utility model, the distance between one side of any contact part, which is away from the second direction of the limiting part, and the center of the circle of the first bending part is not less than half of the width of the probe in the second direction;

and/or

The distance between one side of any contact part, which is away from the second direction of the limiting part, and the center of the circle of the second bending part is not more than half of the width of the probe in the second direction.

As a further improvement of the present utility model, the conductive cross-sectional area of the elastic portion is not larger than the conductive cross-sectional area of other portions of the probe.

As a further improvement of the utility model, the width of each strip-shaped elastic sheet is equal;

and/or

The width of the gap formed between two adjacent band-shaped shrapnel is not smaller than the width of any band-shaped shrapnel at two sides.

In another aspect of the utility model, there is also provided a connector comprising a core assembly having at least one of said resilient flat probes disposed therein;

the mold core assembly comprises a rubber frame and a cover plate arranged on one side of an opening of the rubber frame; the probe is embedded in the rubber frame, and one end of the first contact part provided with the first contact part extends out of the rubber frame; and one side of the first limiting part deviating from the second contact part is abutted against the inner side wall surface of the rubber frame, and one side of the second limiting part deviating from the first contact part is abutted against the inner side wall surface of the cover plate.

The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.

In general, the above technical solutions conceived by the present utility model have the beneficial effects compared with the prior art including:

(1) The elastic flat probe comprises a first contact part, an elastic part and a second contact part which are sequentially connected, and the corresponding arrangement of the arc-shaped protruding blocks and the limiting parts at one end of the two contact parts, which are away from the contact parts, provides conditions for the arrangement of a first elastic sheet unit and a second elastic sheet unit in the elastic part, and effectively realizes current diversion on the basis of accurately realizing the probe conduction test, provides conditions for the high-current conduction test of the probe, and improves the service performance of the elastic flat probe.

(2) According to the elastic flat probe, the connection form between the second strip-shaped elastic sheet and the arc-shaped convex block is preferably designed, and the corresponding arrangement of the avoidance space at the connection corner of the contact part and the limiting part is matched, so that the stress dispersion in the compression use process of the elastic part of the probe is effectively realized, the local concentration of the stress is avoided, the service life of the elastic part and even the probe is prolonged, and the arrangement and use reliability and the use reliability of the probe and the corresponding connector are ensured.

(3) According to the elastic flat probe, the arrangement number of the bending parts in the strip-shaped elastic sheet and the connection mode are optimized, so that the two contact parts can be effectively ensured to be positioned at the same side in the second direction of the probe, the stress transmission directionality between the two contact parts is ensured, the distortion in the use process of the probe is avoided, and the use reliability of the probe is further improved; meanwhile, the conduction sectional area of the elastic part is set to be the minimum value of the conduction sectional areas of the probes, so that the conduction resistance of the probes can be effectively reduced as long as the conduction sectional area of the elastic part is increased as much as possible, and the applicability of the probes in a high-current application environment is further improved.

(4) The elastic flat probe has a simple structure, is easy to process, can accurately complete the conduction test requirement of electronic equipment, meets the high-speed signal transmission and high-current test requirements of electronic components, and ensures the accuracy and efficiency of the conduction test; moreover, the elastic flat probe is integrally formed, and the service life is not influenced by internal friction in the test compression process, so that the service life of the elastic flat probe can reach more than 3-5 times of that of a conventional probe, and the elastic flat probe has good economic benefit and practical value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an elastic flat probe according to an embodiment of the present utility model;

FIG. 2 is a schematic plan view of an elastic flat probe according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the elastic part of the elastic flat probe according to the embodiment of the present utility model;

FIGS. 4 and 5 are schematic views of the width marks of the respective parts of the elastic flat probe according to the embodiment of the present utility model;

FIG. 6 is a schematic diagram showing the switching of the elastic flat probe between the initial state and the working state according to the embodiment of the present utility model;

FIG. 7 is a schematic view of an embodiment of the utility model with the spring flat probe in use disposed in a connector;

like reference numerals denote like technical features throughout the drawings, in particular:

1. a probe; 2. a first contact portion; 3. an elastic part; 4. a second contact portion; 5. a mold core assembly;

21. a first contact unit; 22. a first limit part; 23. a first contact portion; 24. a first avoidance space; 25. a first arc-shaped bump;

31. a first end; 32. a second end; 33. a third end; 34. a fourth end; 35. a first band-shaped elastic sheet; 36. a second band-shaped elastic sheet; 37. a third band-shaped elastic sheet; 351. a first bending portion; 352. a second bending portion; 353. a third bending part; 38. a first gap; 39. a second gap;

41. a second contact portion; 42. a second limit part; 43. a second arc-shaped bump; 44. a second avoidance space;

51. a rubber frame; 52. and a cover plate.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

referring to fig. 1 to 6, an elastic flat probe in a preferred embodiment of the present utility model is formed by integrally forming conductive materials, and includes a first contact portion 2, an elastic portion 3 and a second contact portion 4 sequentially disposed along a length direction of the probe 1 (i.e., a working direction of the probe 1, which is referred to as a first direction), and ends of the first contact portion 2 and the second contact portion 4 are respectively abutted against a conducting position of a device to be conducted, so as to conduct the corresponding device, and complete a corresponding conducting process.

Specifically, the first contact portion 2 in the preferred embodiment includes a first contact unit 21 extending in the first direction, one end of the first contact unit 21 is connected to the elastic portion 3, the other end is a tip of the probe 1, and a first contact portion 23 is formed for abutting and conducting with a connection member of one device to be conducted.

Preferably, according to the actual application requirement, at least one hollowed hole or a weight reduction groove can be formed on the first contact unit 21 for reducing the dead weight of the probe and saving the application of raw materials.

In the actual setting, the setting form of the needle tip can be optimized according to the actual situation, for example, the needle tip can be set into various forms such as wave, zigzag, triangle, round head and the like, and can be designed into other shapes according to the special shape of the abutting product, or can be designed into a special form based on the fact that the contact surface between the probe and the product is as large as possible in the test process, and the detailed description is omitted.

Meanwhile, the second contact portion 4 in the preferred embodiment extends along the first direction, one end of the second contact portion is connected to the elastic portion 3, and the other end of the second contact portion faces away from the elastic portion 3 and is used as a needle tail of the probe 1, and the second contact portion 41 is formed, and as the arrangement form of the needle tip, the specific arrangement form of the needle tail may be preferred according to needs, for example, the arrangement form of the needle tail is a round head, a pointed head or other forms, which will not be described herein.

Further, the elastic portion in the preferred embodiment includes a first band spring 35, a third band spring 37, and a second band spring 36, the three band springs being spaced apart, with a first gap 38 formed between the first and third band springs, and a second gap 39 formed between the second and third band springs.

In actual setting, the first strip spring 35 and the third strip spring 37 form a first spring unit, and the second strip spring 36 forms a second spring unit, that is, the first spring unit and the second spring unit are disposed at intervals by a second gap 39.

In a preferred embodiment, the extension lengths of the two spring plate units are different, that is, the first end 31 of the first spring plate unit connected to the first contact portion 2 and the second end 32 of the second spring plate unit connected to the first contact portion 2 are offset in the first direction, that is, the ends of the two gaps at one end of the first contact portion 2 are offset in the first direction. Correspondingly, the third end 33 of the first elastic sheet unit connected to the second contact portion 4 and the fourth end 34 of the second elastic sheet unit connected to the second contact portion 2 are also offset in the first direction, that is, the ends of the two gaps at one end of the second contact portion 4 are offset in the first direction.

Further, corresponding to the connection of the two ends of the first elastic sheet unit, a first limiting part 22 is arranged on one side of the first contact unit 21 in the second direction in an extending manner along the second direction, so that one end of the first elastic sheet unit is connected with the end part of the first limiting part 22, and the connection of the two end parts is further tangential connection; accordingly, a second stopper 42 is provided extending in the second direction at one side of the second contact portion 4 in the second direction such that the other end of the first dome unit is connected with the end of the second stopper 42, as shown in fig. 2.

By utilizing the corresponding arrangement of the first limiting part 22 and the second limiting part 42, when the probe 1 is correspondingly arranged in the mold core assembly 5, one sides, deviating from each other, of the two limiting parts can be respectively abutted against the inner wall surface of the rubber frame 51 and the inner wall surface of the cover plate 52, so that the limiting arrangement of the probe 1 in the mold core assembly 5 is realized, and the convenience and the reliability of the arrangement and the use of the probe 1 are ensured.

In more detail, the first contact unit 21 and the second contact portion 4 are disposed opposite to each other in the first direction, and arc-shaped protrusions are respectively disposed at opposite ends thereof, that is, a first arc-shaped protrusion 25 disposed at an end of the first contact unit 21 facing away from the first contact portion 23 and a second arc-shaped protrusion 43 disposed at an end of the second contact portion 4 facing away from the second contact portion 41. Accordingly, both ends of the band-shaped elastic piece (for example, the second band-shaped elastic piece 36 shown in fig. 2) of the second elastic piece unit are respectively connected to the same side of the two arc-shaped protrusions in the second direction.

Preferably, in order to avoid abrupt change of force transmission direction after the two ends of the second strip-shaped elastic sheet 36 are correspondingly connected, the two ends of the second strip-shaped elastic sheet 36 in the preferred embodiment are respectively connected with one side of the corresponding arc-shaped bump in the second direction by an arc-shaped section with gradually changed width, so that the arc-shaped wall surface of the arc-shaped bump is butted with the arc-shaped surface of one side of the arc-shaped section, which is away from the first strip-shaped elastic sheet 35, to form a continuous arc-shaped extension wall surface. In actual arrangement, the arc-shaped section is approximately in the shape of a right trapezoid, the short side of the arc-shaped section is connected with the end of the second strip-shaped elastic sheet 36, and the long side of the arc-shaped section is connected with one side of the arc-shaped protruding block in the second direction.

By means of the corresponding arrangement of the arc-shaped protruding blocks, stress at two ends of the elastic part 3 can be further dispersed, and particularly stress concentration at two ends of the second elastic sheet unit is avoided.

In the preferred embodiment shown in fig. 2, the number of the band-shaped elastic pieces in the first elastic piece unit is two (i.e., the first band-shaped elastic piece 35 and the third band-shaped elastic piece 37) which are arranged at intervals, the number of the band-shaped elastic pieces in the second elastic piece unit is one (i.e., the second band-shaped elastic piece 36), and the three band-shaped elastic pieces are arranged at intervals in sequence. It is obvious that the number of the band-shaped spring plates is not limited to the above number in the actual arrangement, but may be other number as needed.

For example, the number of the band-shaped elastic pieces in the first elastic piece unit may be 1, or may be more than two; similarly, the band spring in the second spring unit may be provided as more than one.

Further, the arrangement form of each band-like elastic piece of the elastic portion 3 in the preferred embodiment is (approximately) the same, except for the arrangement form of the end portions and the connection positions, and is in the form of an "arcuate curve" as shown in fig. 3. The first band spring 35 is described as an example, and includes a first bending portion 351, a second bending portion 352, and a third bending portion 353 connected by end portions in sequence, and the circle centers of the three bending portions are arranged as shown in fig. 4, where the bending portions of the three band springs located at the same position share the same circle center.

In the preferred embodiment as shown in FIG. 4, the centers O of the first curved portion 351 and the third curved portion 353 ₁ 、O ₃ Preferably arranged at intervals in the first direction, i.e. the line connecting the two extends in the first direction, and the centre of the circle O of the second curved portion 352 ₂ On the side of the connection line close to the first contact 2.

It will be readily seen that, in the actual arrangement, the opening direction of the first curved portion 351 coincides with the opening direction of the third curved portion 353, and the opening direction of the second curved portion 352 is opposite to the opening direction of the first curved portion 351/the third curved portion 353, where the opening direction refers to the direction in which the line between the center of curvature of the curved portion and the center of the line connecting the two ends extends, in the preferred embodiment, the second direction.

Further, in the actual setting, the circle center O ₁ In a second direction away from the center O of the circle with the first contact 2 ₁ The distance W2 at one side is not less than half of the whole width W14 of the probe 1, and the circle center O ₂ In a second direction away from the center O of the circle with the first contact 2 ₂ The distance W5 on one side is not more than half the overall width value W14 of the probe 1, as shown in fig. 4.

Meanwhile, in the preferred embodiment, the widths W4, W3, W6 of the three band-shaped elastic pieces are preferably the same, and the widths (W12, W13) of the first gap 38 and the second gap 39 are preferably the same.

More specifically, the width of each gap is preferably not smaller than the width of any one of the two band-shaped elastic pieces forming the gap, the sum of the cross-sectional areas of the band-shaped elastic pieces in the elastic portion 3 (the band-shaped elastic piece area shown in fig. 3, excluding the end area of the second elastic piece unit) is preferably not larger than the minimum value (corresponding to the width W9 and W10) of the conducting cross-sectional area of the other parts (i.e., the two contact parts) of the probe 1, so that the conducting resistance of the probe 1 can be as small as possible as long as the conducting cross-sectional area of the elastic portion 3 is as large as possible, and the requirement of the large-current conducting test can be further realized.

In addition, the minimum width W9 of the first contact portion 2 is smaller than the maximum width W8 of the first contact portion 2, and the minimum width W10 of the second contact portion 4 is smaller than the maximum width W11 thereof, so that current can be split better.

As a particularly preferred embodiment, the width W1 of the first contact unit 21 is preferably equal to the width W7 of the second contact 4.

As another specific preferred embodiment, a first avoidance space 24 is preferably formed on a side of the first contact unit 21 near the first limiting portion 22, and is preferably formed at a corner position where the first limiting portion 22 is connected to the first contact unit 21, and is located on a side of the first limiting portion 22 away from the second limiting portion 42. Similarly, a second avoidance space 44 is provided at a connection corner position of the second contact portion 4 and the second limiting portion 42, and is located at a side of the second limiting portion 42 away from the first limiting portion 22.

By means of the corresponding arrangement of the two avoidance spaces, stress concentration at the connecting part of the two limiting parts and the corresponding contact part can be effectively eliminated.

Further preferably, the end connection between each bending part and the connection between the bending part and the corresponding limiting part in each strip-shaped elastic sheet are in a tangential connection mode, so that abrupt changes of the force transmission direction of the strip-shaped elastic sheet can be avoided as much as possible, and local stress concentration in the compression deformation process of the strip-shaped elastic sheet is avoided. Further, since the first contact portion 2 and the second contact portion 4 are located on the same side in the second direction, the number of the bent portions in each band-shaped elastic piece is preferably an odd number, for example, 1, 3, or 5, at the time of actual arrangement.

As another preferred aspect of the present utility model, there is also included a connector as shown in fig. 7, which includes a core assembly 5 and a plurality of resilient flat probes 1 disposed within the core assembly 5. The mold core assembly 5 includes a rubber frame 51 as shown in fig. 7, which is a box-type structure with an opening at the bottom side, and has a through hole at the top for the first contact portion 2 of the probe to protrude. Accordingly, the rubber frame 51 is formed with cavities accommodating the probes 1, which are further divided into two by a partition plate, so that the probes 1 can be symmetrically embedded in the cavities at both sides of the partition plate, as shown in fig. 7.

During actual setting, the probe 1 embedded in the cavity is limited by the first limiting part 22 abutting against the inner wall surface of the rubber frame 51, the cover plate 52 is connected to the opening side of the rubber frame 51, the second limiting part 42 abuts against one side of the second limiting part 42 deviating from the first contact part 2, and the limiting of the probe 1 in the mold core assembly 5 is completed by the second limiting part 42.

When the connector works, when the first contact point part 23 of the elastic flat probe 1 receives the acting force in the first direction, the first contact point part 23 moves along the first direction to generate a certain displacement, and the acting force is transmitted to the elastic part 3, so that each strip-shaped elastic piece of the elastic flat probe is deformed, the acting force required by the displacement of the first contact point part 23 is dispersed by each strip-shaped elastic piece of the elastic part 3, and the concentration of stress is avoided. Correspondingly, the first contact part 23 is reliably abutted against the corresponding device under the action of the reaction force of the elastic part 3, and the second contact part 41 is reliably abutted against the other device, so that the conduction of the two devices is realized, and the conduction test process of the corresponding device is completed.

The elastic flat probe has a simple structure, is easy to process, can accurately complete the conduction test requirement of electronic equipment, meets the high-speed signal transmission and high-current test requirements of electronic components, and ensures the accuracy and efficiency of conduction test; moreover, the elastic flat probe is integrally formed, and the service life is not influenced by internal friction in the test compression process, so that the service life of the elastic flat probe can reach more than 3-5 times of that of a conventional probe, and the elastic flat probe has good economic benefit and practical value.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. An elastic flat probe comprises a first contact part, an elastic part and a second contact part which are sequentially arranged in a first direction by taking the working direction of the probe as a first direction; the two contact parts extend along the first direction respectively, and contact parts are formed at two ends which deviate from each other respectively; it is characterized in that the method comprises the steps of,

a first limiting part is arranged on one side of the first contact part, which is away from one end of the contact part; a second limiting part is arranged on one side of the second contact part, which is away from one end of the contact part; the two limit parts are respectively arranged in an extending way in a second direction formed in the width direction of the probe; arc-shaped protruding blocks are respectively arranged on the adjacent end parts of the two contact parts;

the elastic part comprises at least two strip-shaped elastic sheets; each strip-shaped elastic sheet is sequentially arranged at intervals and extends in a bending way between the two contact parts; and is also provided with

The at least two strip-shaped elastic pieces at least comprise a first strip-shaped elastic piece, two ends of the first strip-shaped elastic piece are respectively connected with the end parts of the two limiting parts, and a first elastic piece unit is formed between the two limiting parts; the at least two strip-shaped elastic pieces at least comprise a second strip-shaped elastic piece, two ends of the second strip-shaped elastic piece are connected with one side of the two arc-shaped protruding blocks in the second direction, and a second elastic piece unit is formed between the two arc-shaped protruding blocks.

2. The elastic flat probe according to claim 1, wherein the second strip-shaped elastic sheet is one, and two ends of the second strip-shaped elastic sheet are respectively connected with one side of the corresponding arc-shaped convex block in the second direction by an arc-shaped section with gradually changed width, so that the arc-shaped wall surfaces of the two arc-shaped convex blocks are respectively butted with the arc-shaped surface of one side of the corresponding arc-shaped section, which is away from the first strip-shaped elastic sheet, to form a continuous arc-shaped extension wall surface.

3. The elastic flat probe according to claim 1, wherein a clearance space is provided corresponding to at least one of the stopper portions;

the clearance space is arranged at one side of the second direction of the corresponding contact part, is arranged at the connecting corner position of the limiting part and the corresponding contact part, and is positioned at one side of the limiting part deviating from the corresponding arc-shaped convex block.

4. A resiliently flattened probe as claimed in any one of claims 1 to 3 wherein said first spring element comprises two spaced apart strip-shaped spring elements.

5. A spring flat probe according to any one of claims 1-3, wherein the strip-like elastic sheet comprises an odd number of bent portions connected in turn at end portions, and the first contact portion and the second contact portion are located on the same side in the second direction of the probe.

6. The elastic flat probe according to claim 5, wherein the band-shaped elastic sheet comprises a first bending portion, a second bending portion and a third bending portion which are sequentially connected with end portions in a tangential manner, and a line connecting the center of the first bending portion and the center of the third bending portion extends along a first direction.

7. The elastic flat probe according to claim 6, wherein a distance between a side of any one of the contact portions in the second direction away from the limiting portion and a center of the first bending portion is not less than half of a width of the probe in the second direction;

and/or

The distance between one side of any contact part, which is away from the second direction of the limiting part, and the center of the circle of the second bending part is not more than half of the width of the probe in the second direction.

8. The elastic flat probe according to any one of claims 1 to 3, 6 and 7, wherein the conductive cross-sectional area of the elastic portion is not larger than the conductive cross-sectional area of other portions of the probe.

9. The spring flat probe of claim 8 wherein the width of each of said ribbon-like spring is equal;

and/or

The width of the gap formed between two adjacent band-shaped shrapnel is not smaller than the width of any band-shaped shrapnel at two sides.

10. Connector comprising a mould core assembly, characterized in that at least one elastic flat probe according to any one of claims 1 to 9 is provided in the mould core assembly;

the mold core assembly comprises a rubber frame and a cover plate arranged on one side of an opening of the rubber frame; the probe is embedded in the rubber frame, and one end of the first contact part provided with the first contact part extends out of the rubber frame; and one side of the first limiting part deviating from the second contact part is abutted against the inner side wall surface of the rubber frame, and one side of the second limiting part deviating from the first contact part is abutted against the inner side wall surface of the cover plate.