Stroke-adjustable microneedle module

Abstract

The utility model relates to the technical field of micro-needle modules, in particular to a micro-needle module with an adjustable stroke. The problem that in the prior art, a microneedle module is narrow in application range is solved, and the practicability of equipment is improved. The structure comprises a shell, a needle seat is arranged in the shell, a plurality of microneedles are fixed on the needle seat, a carrier plate is further arranged on the shell, a plurality of needle holes are formed in the carrier plate, the needle holes correspond to the microneedles in a one-to-one mode, the microneedles are connected with the needle holes in a sliding mode, and an adjusting structure used for adjusting the distance between the needle seat and the carrier plate is further arranged in the shell. And a floating structure for enabling the carrier plate to float on the shell is also arranged between the carrier plate and the shell. According to the embodiment of the utility model, the design that the electrical components are directly placed on a carrier plate for detection in the prior art is replaced, the distance between the needle seat and the carrier plate can be adjusted through the adjusting structure according to the requirements of different electrical components, and the embodiment of the utility model can adapt to more different types of electrical components and is wider in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to a micro needle module technical field, specifically, a stroke adjustable micro needle module. BACKGROUND

[0002] The micro needle module is a test module integrated with multiple micro probes or needle heads, and is usually used for precise electronic product testing, semiconductor testing, IC (integrated circuit) testing and other applications. The micro needle module is usually composed of multiple micro needles or micro probes, and the micro needles are designed to very precisely contact the test points (such as pads or pins on a chip) of the object to be tested for signal transmission or electrical parameter measurement.

[0003] The working principle of the existing micro needle module is that the needle head of the micro needle module is precisely vertically moved by a mechanical driving system until it contacts the test points (such as pins, pads, etc.) of the chip. After the connection is completed, the micro needle transmits electrical signals to the object to be tested through its pins, or receives signals returned by the object to be tested. By performing electrical performance testing of electronic components, chips, ICs, etc., it can be determined whether they meet the design specifications and potential faults or defects can be found in time.

[0004] Although this can achieve electrical testing of electronic components, it still has the following disadvantages: the pin lengths of different chips are different, for example, for thicker packaging materials, a larger stroke may be required, while for thinner chips or pads, a smaller stroke is required to avoid errors or damage caused by excessive pressure or too short stroke. The micro needle module of the prior art cannot be adjusted in stroke, and cannot meet the needs of more products. UTILITY MODEL CONTENT

[0005] The utility model provides a stroke adjustable micro needle module, which solves the problem of narrow application range of the micro needle module in the prior art and improves the practicability of the equipment.

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

[0007] A stroke adjustable micro needle module, comprising a shell,

[0008] The shell is provided with a needle holder, and a plurality of micro needles are fixed on the needle holder. The shell is also provided with a carrier plate, and the carrier plate is provided with a plurality of needle holes. Each needle hole corresponds to a micro needle, and each micro needle is slidably connected to the needle hole. The shell is also provided with an adjusting structure for adjusting the distance between the needle holder and the carrier plate. The carrier plate and the shell are also provided with a floating structure for floating the carrier plate on the shell.

[0009] Further, the adjusting structure comprises an adjusting screw rod, the adjusting screw rod is rotationally connected with the inner wall of the shell, the bottom of the needle seat is provided with a limiting piece, the limiting piece is a right-angled ladder type structure in cross section, the inclined surface of the limiting piece is in abutment with the bottom of the needle seat, and the limiting piece is threadedly connected with the adjusting screw rod.

[0010] Further, the shell is internally provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are parallel to each other, the bottom of the limiting piece is fixedly provided with a first sliding piece and a second sliding piece, the first sliding piece and the second sliding piece are both "convex" type structures, the first sliding piece is slidingly connected with the first sliding groove, and the second sliding piece is slidingly connected with the second sliding groove.

[0011] Further, the two sides of the needle seat are fixedly provided with extension plates, a plurality of limiting rods are fixedly arranged on the extension plates, a first limiting spring is sleeved on each limiting rod, the two ends of the first limiting spring are fixedly connected with the extension plate and the shell respectively, and the limiting rod is slidingly connected with the shell.

[0012] Further, a limiting rail is further fixedly arranged on the inner wall of the shell, and the extension plates are slidingly connected with the limiting rail respectively.

[0013] Further, the floating structure comprises a plurality of sliding bolts, each sliding bolt is fixedly arranged on the shell, a second limiting spring is sleeved on each sliding bolt, and the two ends of the second limiting spring are fixedly connected with the shell and the sliding bolt respectively.

[0014] Further, an installation sliding groove is further fixedly arranged on the shell, and the carrier plate is slidingly connected with the installation sliding groove.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] The working process of the embodiment is as follows: first, the electronic component to be detected is placed on the carrier plate on the shell, the adjusting screw rod is adjusted, the limiting piece is moved under the driving of the adjusting screw rod, and the needle seat is moved up and down, so that the micro-needle on the needle seat is adjusted to the appropriate position from the extension length in the needle hole, then the carrier plate is pressed to connect the pin on the electronic component with the micro-needle, and whether it meets the specification is detected.

[0017] The embodiment is provided with the needle seat on the shell, the micro-needle is arranged on the needle seat, the carrier plate is arranged on the shell, the distance between the needle seat and the carrier plate is adjusted through the adjusting structure, and the carrier plate is floated on the shell through the floating structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the existing technology;

[0020] Figure 2 This is a schematic diagram of the overall structure of this embodiment. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the overall structure of this embodiment. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the internal structure of the shell in this embodiment. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the internal structure of the shell in this embodiment. Figure 2 .

[0024] In the picture:

[0025] 1. Housing; 11. First sliding groove; 12. Second sliding groove; 13. Mounting groove; 2. Carrier plate; 21. Pin hole; 3. Limiting rod; 31. First limiting spring; 4. Sliding bolt; 41. Second limiting spring; 5. Micro needle; 6. Adjusting screw; 7. Needle seat; 71. Extension plate; 711. Limiting rail; 8. Limiting component; 81. First sliding component; 82. Second sliding component. Detailed Implementation

[0026] 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.

[0027] like Figures 2-5 As shown, this embodiment proposes a microneedle 5 module with adjustable stroke, the structure of which includes a housing 1.

[0028] In this embodiment, the pin holder 7 is disposed within the housing 1, and a plurality of micropins 5 are fixedly disposed on the pin holder 7 for connection to the pins of electronic components. The carrier plate 2 is disposed on the housing 1 for placing and mounting electronic components. A plurality of pin holes 21 are disposed on the carrier plate 2, each pin hole 21 corresponding one-to-one with a micropin 5, and each micropin 5 is slidably connected to the pin hole 21. An adjustment structure is disposed within the housing 1 for adjusting the distance between the pin holder 7 and the carrier plate 2. A floating structure is disposed between the carrier plate 2 and the housing 1 for allowing the carrier plate 2 to float on the housing 1.

[0029] The adjusting structure in the embodiment comprises an adjusting screw rod 6, the adjusting screw rod 6 is rotationally connected with the inner wall of the shell 1, a limiting piece 8 is arranged at the bottom of the needle seat 7, the cross section of the limiting piece 8 is a right-angled ladder structure, the inclined surface of the limiting piece 8 abuts against the bottom of the needle seat 7, and the limiting piece 8 is threadedly connected with the adjusting screw rod 6. Such a design makes the needle seat 7 move up and down when the adjusting screw rod 6 rotates to drive the limiting piece 8 to move, so as to adjust the extension length of the microneedle 5, and the microneedle 5 module can meet the requirements of different microneedle 5 lengths.

[0030] The first sliding groove 11 and the second sliding groove 12 in the embodiment are arranged in the shell 1, the first sliding groove 11 and the second sliding groove 12 are parallel to each other, the first sliding piece 81 and the second sliding piece 82 are fixedly arranged at the bottom of the limiting piece 8, the first sliding piece 81 and the second sliding piece 82 are both “convex” structures, the first sliding piece 81 is slidingly connected with the first sliding groove 11, and the second sliding piece 82 is slidingly connected with the second sliding groove 12. Such a design ensures that the limiting piece 8 will not deviate during sliding, and makes the movement of the limiting piece 8 more stable and reliable.

[0031] The extension plate 71 in the embodiment is fixedly arranged on both sides of the needle seat 7, a plurality of limiting rods 3 are fixedly arranged on the extension plate 71, a first limiting spring 31 is sleeved on each limiting rod 3, both ends of the first limiting spring 31 are fixedly connected with the extension plate 71 and the shell 1 respectively, and the limiting rod 3 is slidingly connected with the shell 1. The first limiting spring 31 in the embodiment makes the needle seat 7 always closely contact with the limiting piece 8, so that the extension length of the microneedle 5 can be adjusted by adjusting the position of the limiting piece 8.

[0032] The limiting rail 711 in the embodiment is fixedly arranged on the inner wall of the shell 1, and the extension plate 71 is slidingly connected with the limiting rail 711. Such a design ensures that the extension plate 71 will not deviate during movement, and ensures the stable up-down movement of the extension plate 71. The structure of the embodiment is more stable and reliable.

[0033] The floating structure in the embodiment comprises a plurality of sliding bolts 4, each sliding bolt 4 is fixedly arranged on the shell 1, a second limiting spring 41 is sleeved on each sliding bolt 4, and both ends of the second limiting spring 41 are fixedly connected with the shell 1 and the sliding bolt 4 respectively. Such a design makes the carrier plate 2 have floating elasticity, and the purpose of such a design is to ensure that a product (such as a chip, a test board, etc.) can be in full contact with a test needle (such as a microneedle 5, a probe), and precise testing can be achieved.

[0034] The mounting sliding groove 13 in the embodiment is fixedly arranged on the shell 1, and the carrier plate 2 is in sliding connection with the mounting sliding groove 13. Such a design not only can hide the second limiting spring 41, so that the outer pipe of the shell 1 is more beautiful, but also ensures that the carrier movement will not deviate from the track.

[0035] The working process of the embodiment is as follows: first, the electronic component to be detected is placed on the carrier plate 2 on the shell 1, the rotating adjusting screw rod 6 is adjusted, the limiting piece 8 is moved under the driving of the adjusting screw rod 6, and the needle holder 7 is pushed to move up and down, so that the micro-needle 5 on the needle holder 7 is adjusted to the appropriate position from the extension length in the needle hole 21, then the carrier plate 2 is pressed to make the pin on the electronic component connected with the micro-needle 5, and whether it meets the specification is detected.

[0036] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stroke-adjustable microneedle module, comprising a shell (1), characterized in that, a needle seat (7) is arranged in the shell (1), a plurality of microneedles (5) are fixed on the needle seat (7), a carrier plate (2) is further arranged on the shell (1), a plurality of needle holes (21) are arranged on the carrier plate (2), each needle hole (21) corresponds to a microneedle (5), each microneedle (5) is in sliding connection with the needle hole (21), an adjusting structure for adjusting the distance between the needle seat (7) and the carrier plate (2) is further arranged in the shell (1), and a floating structure for making the carrier plate (2) float on the shell (1) is further arranged between the carrier plate (2) and the shell (1).

2. The adjustable stroke microneedle module of claim 1, wherein, The adjusting structure comprises an adjusting screw (6), the adjusting screw (6) is in rotational connection with the inner wall of the shell (1), a limiting piece (8) is arranged at the bottom of the needle seat (7), the limiting piece (8) has a right-angled ladder-shaped structure in cross section, the inclined surface of the limiting piece (8) is in abutment with the bottom of the needle seat (7), and the limiting piece (8) is in threaded connection with the adjusting screw (6).

3. The adjustable stroke microneedle module of claim 2, wherein, A first sliding groove (11) and a second sliding groove (12) are arranged in the shell (1), the first sliding groove (11) and the second sliding groove (12) are parallel to each other, a first sliding piece (81) and a second sliding piece (82) are fixed to the bottom of the limiting piece (8), the first sliding piece (81) and the second sliding piece (82) both have a "convex" shape, the first sliding piece (81) is in sliding connection with the first sliding groove (11), and the second sliding piece (82) is in sliding connection with the second sliding groove (12).

4. The adjustable stroke microneedle module of claim 2, wherein, The needle seat (7) is fixed with a protruding plate (71) on both sides, a plurality of limiting rods (3) are fixed on the protruding plate (71), a first limiting spring (31) is sleeved on each limiting rod (3), the two ends of the first limiting spring (31) are fixedly connected with the protruding plate (71) and the shell (1) respectively, and the limiting rod (3) is in sliding connection with the shell (1).

5. The adjustable stroke microneedle module of claim 4, wherein, A limiting rail (711) is further fixed on the inner wall of the shell (1), and the protruding plate (71) is in sliding connection with the limiting rail (711) respectively.

6. The adjustable stroke microneedle module of claim 1, wherein, The floating structure comprises a plurality of sliding bolts (4), each sliding bolt (4) is fixedly arranged on the shell (1), a second limiting spring (41) is sleeved on each sliding bolt (4), and the two ends of the second limiting spring (41) are fixedly connected with the shell (1) and the sliding bolt (4) respectively.

7. The adjustable stroke microneedle module of claim 1, wherein, An installation sliding groove (13) is further fixed on the shell (1), and the carrier plate (2) is in sliding connection with the installation sliding groove (13).

Images