Floating type microneedle module of FPC (Flexible Printed Circuit)

Abstract

The utility model relates to the technical field of micro-needle modules, and provides a floating micro-needle module of an FPC, which comprises a fixed base and a movable matching seat, the movable matching seat comprises a micro-needle plate seat body and a lower pressing plate seat body, the micro-needle plate seat body is located between the lower pressing plate seat body and the fixed base, and a plurality of first floating elastic pieces are arranged between the micro-needle plate seat body and the lower pressing plate seat body. A plurality of second floating elastic pieces are arranged between the micro-needle plate seat body and the fixed base, a limiting structure is arranged between the movable matching seat and the fixed base and comprises a plurality of limiting holes and a plurality of limiting columns, the limiting holes are formed in the fixed base, and the limiting columns are fixedly connected with the micro-needle plate seat body and located in the limiting holes in a one-to-one correspondence mode; the longitudinal section of each limiting column is of an isosceles trapezoid structure, and the upper bottom of each limiting column is wider than the lower bottom of the limiting column. According to the technical scheme, the problem that the micro-needle structure on the micro-needle module is easily damaged due to the fact that the micro-needle module shakes in the downward pressing process in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of microneedle module, specifically, and relates to a floating type microneedle module of FPC. BACKGROUND

[0002] FPC generally refers to the abbreviation of Flexible Printed Circuit, also known as soft circuit board, flexible printed circuit board, flexible circuit board, soft board. In order to ensure the electrical performance of FPC, the FPC is usually tested by a test device, at present, most FPC test devices select a microneedle module as a connecting module for connecting FPC or the connector of FPC, so as to ensure the stability of current transmission in the testing process, thereby ensuring the testing efficiency.

[0003] At the same time, in order to ensure the stable contact between the microneedle module and the FPC, the microneedle module is usually designed in a floating type, and the common floating type design includes adding springs or flexible materials (such as elastic rubber, silica gel, etc.) at the bottom or side of the microneedle module, so that the height of the microneedle module can be automatically adjusted and the microneedle module can be shaken left and right when the microneedle module contacts an uneven surface, thereby ensuring the uniform contact pressure between the microneedle module and the target surface.

[0004] However, the microneedle module is prone to left and right shaking during the floating process, and once the shaking phenomenon occurs during the cooperation (downward pressing) of the FPC or the connector of the FPC and the microneedle module, the microneedle structure on the microneedle module is easily damaged, thereby damaging the microneedle module and affecting the service life of the microneedle module. UTILITY MODEL CONTENTS

[0005] The utility model provides a floating type microneedle module of FPC, solve the problem that the microneedle module in related art shakes during the pressing process and is prone to damage the microneedle structure on the microneedle module.

[0006] The technical scheme of the utility model is as follows:

[0007] A floating type microneedle module of FPC, including fixed base, movable cooperation seat, the movable cooperation seat includes microneedle board seat body, down pressure plate seat body, the microneedle board seat body is located between down pressure plate seat body and fixed base, and a plurality of first floating elastic members are arranged between the microneedle board seat body and the down pressure plate seat body, a plurality of second floating elastic members are arranged between the microneedle board seat body and the fixed base, a limiting structure is arranged between the movable cooperation seat and the fixed base, the limiting structure includes a plurality of limiting holes and a plurality of limiting columns, each limiting hole is formed in the fixed base, each limiting column is fixedly connected with the microneedle board seat body and corresponds to each limiting hole, the longitudinal section of each limiting column is isosceles trapezoidal structure, and the width of one end of the limiting column close to the fixed base is less than the width of the other end of the limiting column away from the fixed base.

[0008] Further, each of the limiting columns is provided with a containing hole slot at one end close to the fixed base, and each of the second floating elastic members is located in the containing hole slot.

[0009] Further, each of the limiting holes is provided with an elastic column, and one end of each of the containing hole slots away from the fixed base is provided with a matching hole for matching with the elastic column.

[0010] Further, each of the elastic columns comprises a shaking column body, a first connecting elastic member, and a plurality of support column bodies, the second connecting elastic members are arranged between adjacent support column bodies, the first connecting elastic member is located between the shaking column body and the support column body adjacent to the shaking column body, and the shaking column body is located in the matching hole.

[0011] Further, the protective bellows are arranged between the adjacent support column bodies, and the second connecting elastic members are located in the protective bellows one by one.

[0012] Further, the diameter of the matching hole is smaller than the diameter of the support column body.

[0013] Further, the first connecting elastic member is located in the matching hole.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] The microneedle module mainly comprises a fixed base and a movable matching seat, wherein the movable matching seat comprises a microneedle plate seat body and a lower pressing plate seat body, the microneedle plate seat body is located between the lower pressing plate seat body and the fixed base, and a plurality of first floating elastic members are arranged between the microneedle plate seat body and the lower pressing plate seat body; when the staff presses the lower pressing plate seat body (the lower pressing plate seat body moves, and the microneedle plate seat body does not move), the microneedle structure on the microneedle plate seat body can penetrate the lower pressing plate seat body, connect with the to-be-detected object (the connector of the FPC) located on the lower pressing plate seat body, and complete the detection work; meanwhile, a plurality of second floating elastic members are arranged between the microneedle plate seat body and the fixed base, that is, the microneedle plate seat body can also move, thereby realizing the floating type design of the microneedle module, effectively dispersing the contact pressure, and avoiding damage or poor penetration of the microneedle due to excessive pressure.

[0016] And, to prevent the activity from shaking in the moving process, the utility model discloses a limit structure between the activity and the fixed base, specifically, the limit structure includes a plurality of limit holes, a plurality of limit columns, each limit hole 51 is set up on the fixed base, each limit column is fixedly connected with the microneedle plate seat body and is located in each limit hole one by one, that is, the utility model realizes the constraint to the activity through the hole shaft cooperation, but the traditional hole shaft cooperation will affect the shaking movement between the activity and the fixed base, therefore, the longitudinal section of each limit column in the utility model is isosceles trapezoidal structure, in detail, the width of one end of the limit column close to the fixed base is less than the width of one end of the limit column away from the fixed base, and the longitudinal section of the limit hole corresponding to the limit column should also be isosceles trapezoidal structure, in this way, the limit column is gradually homing under the constraint of the geometry shape matching with the limit hole under the stress and cannot shake, thereby effectively avoiding the microneedle structure on the microneedle plate seat body from being damaged due to the shaking of the lower pressing plate seat body when matching with the lower pressing plate seat body, and effectively improving the service life of the microneedle module. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be explained further in detail in connection with the drawings and specific embodiment.

[0018] Figure 1 It is the structural schematic diagram of example 1 or example 2.

[0019] Figure 2 It is the sectional view of example 1.

[0020] Figure 3 It is Figure 2 The partial close-up view of A in

[0021] Figure 4 It is the sectional view of example 2.

[0022] Figure 5 It is Figure 4 The partial close-up view of B in.

[0023] In the drawing:

[0024] 1, fixed base, 2, activity, 21, microneedle plate seat body, 22, lower pressing plate seat body, 3, first floating elastic part, 4, second floating elastic part, 5, limit structure, 51, limit hole, 52, limit column, 521, containing hole groove, 5211, cooperation hole, 6, elastic column, 61, shaking column body, 62, first connecting elastic part, 63, support column body, 64, second connecting elastic part, 7, protection bellows. DETAILED DESCRIPTION

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1

[0027] like Figures 1-2 As shown, this embodiment proposes a floating microneedle module for an FPC, mainly including a fixed base 1 and a movable mating seat 2. The movable mating seat 2 mainly includes a microneedle plate seat 21 and a lower pressure plate seat 22. The microneedle plate seat 21 is located between the lower pressure plate seat 22 and the fixed base 1, and a plurality of first floating elastic elements 3 are provided between the microneedle plate seat 21 and the lower pressure plate seat 22. The two ends of each first floating elastic element 3 are fixedly connected to the microneedle plate seat 21 and the lower pressure plate seat 22, respectively. A plurality of second floating elastic elements 4 are provided between the microneedle plate seat 21 and the fixed base 1. Thus, when the operator presses the lower pressure plate seat 22 to a certain extent, it will drive the microneedle plate seat 21 to move down together until the microneedle plate seat 21 and the fixed base 1 abut against each other, and the microneedle structure on the microneedle plate seat 21 penetrates the lower pressure plate seat 22 and connects with the object to be tested (the connector of the FPC) located on the lower pressure plate seat 22, thus completing the testing work.

[0028] The floating design of this embodiment is achieved by utilizing the presence of each first floating elastic element 3 and each second floating elastic element 4, which effectively disperses contact pressure and avoids damage to microneedles or poor penetration due to excessive pressure.

[0029] In this embodiment, each of the first floating elastic elements 3 and each of the second floating elastic elements 4 are preferably compression springs, because compression springs have good axial deformation capability and the deformation direction is highly coincident with the moving direction of the movable mating seat 2.

[0030] A limiting structure 5 is provided between the movable mating seat 2 and the fixed base 1. Specifically, the limiting structure 5 includes several limiting holes 51 and several limiting posts 52. Each limiting hole 51 is opened on the fixed base 1, and each limiting post 52 is fixedly connected to the microneedle plate seat 21 and is located in each limiting hole 51. That is, in this embodiment, the constraint on the movable mating seat 2 is achieved by hole-shaft mating, so as to prevent the movable mating seat 2 from shaking during movement and thus damaging the microneedle structure.

[0031] But considering that the traditional hole shaft cooperation will affect the shaking movement between the active matching seat 2 which is not pressed down and the fixed base 1 (the connector of the FPC is corrected on the embodiment), therefore, the longitudinal section of each limiting column 52 in the embodiment is isosceles trapezoidal structure, in detail, the width of one end of the limiting column 52 close to the fixed base 1 is smaller than the width of the other end of the limiting column 52 away from the fixed base 1, and the longitudinal section of the limiting hole 51 corresponding to the limiting column 52 should also be isosceles trapezoidal structure, in this way, the limiting column 52 will be gradually returned and constrained from shaking under the process of being pressed down by the force from the geometric shape matching each other, thereby effectively avoiding the damage of the microneedle structure on the microneedle plate seat body 21 due to the shaking of the lower pressing plate seat body 22 when cooperating with the lower pressing plate seat body 22, and effectively improving the service life of the microneedle module.

[0032] As shown in Figures 2-3 each limiting column 52 in the embodiment is provided with a containing hole groove 521 at one end close to the fixed base 1, and each second floating elastic piece 4 is located in each containing hole groove 521 one by one, in detail, the two ends of each second floating elastic piece 4 are respectively fixed to the hole bottom of the limiting hole 51 and the groove bottom of the containing hole groove 521 one by one, and the second floating elastic piece 4 is constrained by the structure shape of the limiting column 52 itself, thereby limiting the deformation direction of the second floating elastic piece 4, ensuring that the second floating elastic piece 4 can elastically deform in the expected direction under stress, and ensuring the stability of the operation of the embodiment.

[0033] Each limiting hole 51 is provided with an elastic column 6, and each second floating elastic piece 4 is located between each elastic column 6 and the hole wall of the containing hole groove 521, that is, the second floating elastic piece 4 is subjected to multiple constraints by the cooperation of the elastic column 6 and the containing hole groove 521, thereby further improving the stability of the operation of the embodiment. And because the elastic column 6 itself has the ability to elastically deform, the existence of the elastic column 6 will not affect the shaking movement of the active matching seat 2 which is not pressed down, and the end of each containing hole groove 521 away from the fixed base 1 is provided with a matching hole 5211 for cooperating with the elastic column 6, that is, each elastic column 6 is in hole shaft cooperation with the microneedle plate seat body 21 to effectively constrain the position of the elastic column 6, and ensure that the force when the elastic column 6 elastically deforms can be transmitted to the active matching seat 2, so that the elastic column 6 can assist the active matching seat 2 to move to a certain extent.

[0034] Specifically, each elastic column 6 includes a wobble column body 61, a first connecting elastic piece 62, and a plurality of support column bodies 63. The second connecting elastic piece 64 is arranged between adjacent support column bodies 63 and fixedly connected to the support column bodies 63 at both ends, so as to ensure the stability of the second connecting elastic piece 64 between the adjacent support column bodies 63. The first connecting elastic piece 62 is arranged between the wobble column body 61 and the support column body 63 adjacent to the wobble column body 61, and fixedly connected to both at both ends, so as to ensure the stability of the first connecting elastic piece 62 between the two. The wobble column body 61 is arranged in the matching hole 5211, that is, the wobble column body 61 is connected to the matching hole 5211 in a hole shaft matching manner. Thus, when the microneedle plate seat body 21 shakes, the force is transmitted to the wobble column body 61, driving the wobble column body 61 to change position and causing the first connecting elastic piece 62 to deform. The elastic potential energy accumulated by the first connecting elastic piece 62 during deformation can help the wobble column body 61 to reset in the subsequent reset process.

[0035] The diameter of the matching hole 5211 is smaller than the diameter of the support column body 63. Thus, when the microneedle plate seat body 21 is pressed down, not only the hole bottom of the matching hole 5211 abuts against the wobble column body 61, but also the groove bottom of the accommodating hole groove 521 abuts against the support column body 63 adjacent thereto, thereby expanding the contact area between the elastic column 6 and the microneedle plate seat body 21, so that the elastic column 6 can deform more stably when receiving the pressure from the direction of the microneedle plate seat body 21.

[0036] Each first connecting elastic piece 62 and each second connecting elastic piece 64 in the embodiment are preferably a compression spring or other common elastic piece on the market, so as to replace the internal structure of the embodiment at any time and prolong the service life of the embodiment.

[0037] The first connecting elastic piece 62 is arranged in the matching hole 5211, that is, the first connecting elastic piece 62 is constrained by the matching hole 5211, so as to ensure that the first connecting elastic piece 62 can deform in the expected direction and improve the running stability of the embodiment.

[0038] Embodiment 2

[0039] As Figures 4-5As shown, on the basis of Embodiment 1, each adjacent support column 63 in the present embodiment is provided with a protective bellows 7, and the two ends of the protective bellows 7 are fixedly connected with the support column 63, so as to ensure the stability of the protective bellows 7 between the adjacent support columns 63. Each second connecting elastic member 64 is located in the protective bellows 7 one by one, the protective bellows 7 plays a role of isolating the second connecting elastic member 64 and the second floating elastic member 4, so as to avoid the interlacing of the two in the deformation process, and affect the subsequent resetting work of the two; and the bellows itself has the function of expansion and contraction, therefore, the existence of the protective bellows 7 will not affect the deformation work of the elastic column 6.

[0040] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A floating microneedle module for an FPC, comprising a fixed base (1) and a movable mating seat (2), wherein the movable mating seat (2) comprises a microneedle plate seat (21) and a lower pressure plate seat (22), the microneedle plate seat (21) being located between the lower pressure plate seat (22) and the fixed base (1), and a plurality of first floating elastic elements (3) being provided between the microneedle plate seat (21) and the lower pressure plate seat (22), and a plurality of second floating elastic elements (4) being provided between the microneedle plate seat (21) and the fixed base (1), characterized in that, The active matching seat (2) and the fixed base (1) are provided with a limiting structure (5), the limiting structure (5) includes a plurality of limiting holes (51), a plurality of limiting columns (52), each limiting hole (51) is provided on the fixed base (1), each limiting column (52) is fixedly connected with the microneedle plate seat body (21) and is located in each limiting hole (51) one by one, the longitudinal section of each limiting column (52) is isosceles trapezoidal structure, the width of one end of the limiting column (52) close to the fixed base (1) is less than the width of the other end of the limiting column (52) away from the fixed base (1).

2. The floating microneedle module of FPC according to claim 1, wherein, Each limiting column (52) close to the fixed base (1) is provided with a containing hole groove (521), each second floating elastic piece (4) is located in each containing hole groove (521) one by one.

3. The floating microneedle module of FPC according to claim 2, wherein, Each limiting hole (51) is provided with an elastic column (6), and one end of each containing hole groove (521) away from the fixed base (1) is provided with a matching hole (5211) for cooperating with the elastic column (6).

4. The floating microneedle module of FPC according to claim 3, wherein, Each elastic column (6) includes a shaking column body (61), a first connecting elastic piece (62), a plurality of supporting column bodies (63), a second connecting elastic piece (64) is arranged between adjacent supporting column bodies (63), the first connecting elastic piece (62) is located between the shaking column body (61) and the supporting column body (63) adjacent to the shaking column body (61), and the shaking column body (61) is located in the matching hole (5211).

5. The floating microneedle module of FPC according to claim 4, wherein, Each adjacent supporting column body (63) is provided with a protective bellows (7), and each second connecting elastic piece (64) is located in each protective bellows (7) one by one.

6. The floating microneedle module of FPC according to claim 4, wherein, The diameter of the matching hole (5211) is less than the diameter of the supporting column body (63).

7. The floating microneedle module of FPC according to claim 4, wherein, The first connecting elastic piece (62) is located in the matching hole (5211).

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