Alignment structure of needle seat and connector

Abstract

The utility model relates to a needle seat and connector alignment structure, which comprises a needle seat and a connector placing seat, the connector placing seat is provided with an accommodating hole, the accommodating hole is provided with a floating block, a floating gap is reserved between the hole walls of the accommodating hole at the edge of the floating block, the top wall of the floating block is used for placing a connector, and the floating block is provided with a positioning placing hole. The connector locally penetrates through the positioning placing hole, the floating block is provided with a positioning hole, and the needle seat is fixedly connected with a positioning pin which is used for being matched with the positioning hole. According to the utility model, the effective contact rate of the connector PIN point and the pin seat probe in the test process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connector testing, and particularly relates to a needle seat and connector alignment structure. Background Art

[0002] Before testing a mobile phone camera connector, it needs to be installed on a mobile carrier first, and then the mobile carrier is installed on a fixed carrier (the fixed carrier is installed on the testing device) so that each PIN point of the connector can effectively contact each probe of the needle seat provided on the fixed carrier, and then it can be detected.

[0003] The size of the PIN points provided on the connector is extremely small (refer to Figure 6 ), with an area of about 0.1mm×0.2mm. Therefore, the installation accuracy of the connector and the installation accuracy of the needle seat need to be very high to ensure accurate alignment between the two and ensure effective contact between the PIN points and the probes. However, in the prior art, there are too many parts related to the position accuracy of the connector on the mobile carrier. Similarly, there are too many parts related to the position accuracy of the needle seat on the fixed carrier, resulting in too long positioning dimension chains for both of them, and both are fixedly installed without any fine-tuning room. During the process of installing the mobile carrier on the fixed carrier, some connectors cannot be accurately aligned with the needle seat, resulting in ineffective contact between their PIN points and the probes, and the probability of effective contact between the PIN points and the probes is not high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a needle seat and connector alignment structure, which can improve the probability of effective contact between the PIN points of the connector and the probes of the needle seat during the process of installing the mobile carrier on the fixed carrier.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A needle seat and connector alignment structure includes a needle seat and a connector placement seat. The connector placement seat is provided with a receiving hole, the receiving hole is provided with a floating block, a floating gap is left between the edge of the floating block and the hole wall of the receiving hole, the top wall of the floating block is used to place the connector, the floating block is provided with a positioning placement hole for the connector to partially pass through, the floating block is provided with a positioning hole, and a positioning pin is fixedly connected to the needle seat, and the positioning pin is used to cooperate with the positioning hole.

[0007] Specifically, the receiving hole is a counterbore, and several equal-height screws are fixedly connected to the opening edge of the counterbore. The nuts of the several equal-height screws and the step surface of the counterbore jointly perform vertical limiting on the floating block.

[0008] Specifically, the floating block is rectangular, and the nuts of the equal-height screws abut against the bottom walls at the four corners of the floating block with a gap.

[0009] Specifically, the floating block is provided with two positioning holes which are respectively located on both sides of the positioning and placing hole, and positioning guide sleeves are fixedly arranged in the positioning holes.

[0010] Specifically, the needle base is fixedly connected with two positioning pins, each positioning pin corresponding to a positioning guide sleeve, and a guiding arc surface is arranged at the end of the positioning pin.

[0011] Specifically, an avoidance notch is arranged on the circumferential surface of one of the positioning pins, so that the contact surface between the positioning pin and the positioning guide sleeve is a partial arc surface.

[0012] Specifically, a needle protection block is arranged on the upper side of the needle base. The needle protection block is slidably connected with the needle base. The needle protection block is provided with a plurality of through holes through which the probes arranged on the needle base can pass. A spring is arranged between the needle protection block and the needle base. A concave pit is arranged on the bottom wall of the needle protection block, and the spring is arranged in the concave pit.

[0013] Specifically, the needle base and connector alignment structure includes a fixing plate, a moving plate and a flipping plate. The connector placement seat is fixedly connected to the fixing plate, the needle base is fixedly connected to the moving plate, the flipping plate is hinged to the fixing plate, and a pressing block is fixedly connected to the flipping plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] After the connector is placed on the floating block, the connector and the floating block are accurately positioned. The positioning pins and each probe are all arranged on one part, namely the needle base, with a short dimension chain. Similarly, the connector and the positioning guide sleeve are both arranged on one part, namely the floating block, with a short dimension chain, reducing the number of parts to be assembled, thereby reducing dimensional errors and ensuring that the needle base and the connector can be accurately aligned, so as to improve the effective contact probability between the connector PIN points and the needle base probes. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a sectional view of the disassembled state of the needle base and connector alignment structure;

[0018] Figure 2 It is a sectional view of the combined state of the needle base and connector alignment structure;

[0019] Figure 3 It is a bottom view of the connector placement seat;

[0020] Figure 4Another bottom-up view of the connector placement base;

[0021] Figure 5 Top-side view of the connector placement base;

[0022] Figure 6 Top view of the floating block;

[0023] Figure 7 Another top view of the floating block;

[0024] Figure 8 Top view of the needle protection block;

[0025] Figure 9 View of one of the positioning pins;

[0026] Figure 10 View of the device equipped with the needle base and connector alignment structure of the present utility model;

[0027] Figure 11 Another view of the device equipped with the needle base and connector alignment structure of the present utility model;

[0028] Figure 12 Another view of the device equipped with the needle base and connector alignment structure of the present utility model.

[0029] In the figure:

[0030] 101, moving plate; 1, needle base; 11, positioning pin; 111, guiding arc surface; 112, clearance notch;

[0031] 201, fixing plate; 2, connector placement base; 21, receiving hole; 22, equal-height screw;

[0032] 3, floating block; 31, positioning placement hole; 32, positioning hole; 321, positioning guide sleeve;

[0033] 4, connector;

[0034] 5, needle protection block; 51, perforation; 52, pit;

[0035] 6, flipping plate; 61, pressing block. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0037] See Figures 1 to 12, a needle base and connector alignment structure, comprising a needle base 1 and a connector placement seat 2. The connector placement seat 2 is provided with a receiving hole 21, and a floating block 3 is provided in the receiving hole 21. A floating gap is left between the edge of the floating block 3 and the hole wall of the receiving hole 21 ( Figure 4 at A in). The top wall of the floating block 3 is used to place the connector 4 (in combination with Figures 5 to 7 ). The floating block 3 is provided with a positioning placement hole 31, and the connector 4 partially passes through the positioning placement hole 31. The floating block 3 is provided with a positioning hole 32, and a positioning pin 11 is fixedly connected to the needle base 1. The positioning pin 11 is used to cooperate with the positioning hole 32.

[0038] Specifically, see Figure 3 、 Figure 4 , the receiving hole 21 is a counterbore, and a plurality of equal-height screws 22 are fixedly connected to the opening edge of the counterbore. The nuts of the plurality of equal-height screws 22 and the step surface of the counterbore ( Figure 3 at B in) jointly limit the floating block 3 vertically.

[0039] Specifically, see Figure 4 , the floating block is rectangular in shape, and the nuts of the equal-height screws 22 abut against the bottom walls of the four corners of the floating block 3 with a gap.

[0040] Specifically, see Figure 1 、 Figure 2 、 Figure 6 , the floating block 3 is provided with two positioning holes 32, and the two positioning holes 32 are respectively located on both sides of the positioning placement hole 31. A positioning guide sleeve 321 is fixedly provided in the positioning hole 32.

[0041] Specifically, see Figure 1 、 Figure 2 , two positioning pins 11 are fixedly connected to the needle base 1. Each positioning pin 11 corresponds to a positioning guide sleeve 321, and a guiding arc surface 111 is provided at the end of the positioning pin 11.

[0042] Specifically, see Figure 9 , a clearance notch 112 is provided on the circumferential surface of one of the positioning pins 11, so that the contact surface between the positioning pin 11 and the positioning guide sleeve 321 is a partial arc surface.

[0043] Specifically, see Figure 1 、 Figure 2 、 Figure 8 , a needle protection block 5 is provided on the upper side of the needle base 1. The needle protection block 5 is slidably connected to the needle base 1. The needle protection block 5 is provided with a plurality of through holes 51, and the probes provided on the needle base 1 can pass through the through holes 51. A spring (not shown in the figure) is provided between the needle protection block 5 and the needle base 1. A concave pit 52 is provided on the bottom wall of the needle protection block 5, and the spring is provided in the concave pit 52.

[0044] See Figures 10 to 12, the alignment structure between the needle base and the connector of the present utility model includes a fixing plate 201, a moving plate 101, and a flipping plate 6. The connector placement seat 2 is fixedly connected to the fixing plate 201 (see Figure 11 ), and the needle base 1 is fixedly connected to the moving plate 101 (see Figure 12 ). The flipping plate 6 is hinged to the fixing plate 201, and a pressing block 61 is fixedly connected to the bottom wall of the flipping plate 6.

[0045] The working principle of the alignment structure between the needle base and the connector of the present utility model is as follows:

[0046] Comparing Figure 1 and Figure 2 , when the probes of the needle base 1 are in contact with the PIN points of the connector 4, the needle base 1 and the connector placement seat 2 move towards each other, so that the guiding arc surfaces 111 of the two positioning pins 11 enter the two positioning guide sleeves 321. Under the guidance of the guiding arc surfaces 111, the two positioning pins 11 are in positioning cooperation with the two positioning guide sleeves 321. Since the floating block 3 is floatingly connected to the connector placement seat 2, there is a floating gap between the hole wall of the receiving hole 21 at the edge of the floating block 3 (at Figure 4 A in the figure), during the relative sliding process of the guiding arc surface 111 and the positioning guide sleeve 321, the floating block 3 makes a corresponding lateral movement to move to a suitable position, so that the two positioning guide sleeves 321 are accurately positioned and cooperated with the two positioning pins 11, so that each PIN point of the connector 4 carried by the floating block 3 is accurately in contact with each probe provided on the needle base 1.

[0047] After the connector 4 is placed on the floating block 3, the connector 4 is accurately positioned with the floating block 3. The positioning pins 11 and each probe are all provided on the needle base 1, which has a short dimension chain. Similarly, the connector 4 and the positioning guide sleeves 321 are all provided on the floating block 3, which has a short dimension chain, reducing the number of parts assembled, thereby reducing dimensional errors and ensuring that the needle base 1 and the connector 4 can be accurately aligned, so as to improve the effective contact probability between the PIN points of the connector and the probes of the needle base.

[0048] In this embodiment, the connector placement seat 2 is fixedly connected to the fixing plate 201 (see Figure 11 ), and the needle base 1 is fixedly connected to the moving plate 101 (see Figure 12 ), so as to realize the relative movement of the needle base 1 and the connector placement seat 2. After the connector 4 is placed on the top wall of the floating block 3, the flipping plate 6 is flipped to cover the fixing plate 201, and the pressing block 61 can press the connector 4.

[0049] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content without departing from the technical solution of the present utility model. However, as long as it does not depart from the technical solution content of the present utility model, any brief modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A needle seat and connector alignment structure, characterized in that: It includes a needle seat and a connector placement seat, the connector placement seat is provided with a accommodating hole, the accommodating hole is provided with a floating block, a floating gap is left between the hole walls of the accommodating hole at the edge of the floating block, the top wall of the floating block is used to place the connector, the floating block is provided with a positioning placement hole, the positioning placement hole is for the connector to pass partially through, the floating block is provided with a positioning hole, the needle seat is fixed with a positioning pin, and the positioning pin is used to cooperate with the positioning hole.

2. The needle seat and connector alignment structure according to claim 1, characterized in that: The accommodating hole is a countersunk hole, and a plurality of equal-height screws are fixedly connected to the opening edge of the countersunk hole. The nuts of the plurality of equal-height screws and the step surface of the countersunk hole together limit the floating block vertically.

3. The needle seat and connector alignment structure according to claim 2, characterized in that: The floating block is rectangular in shape, and the nuts of the equal-height screws are against the bottom walls of the four corners of the floating block with gaps.

4. The needle seat and connector alignment structure according to claim 1, characterized in that: The floating block is provided with two positioning holes, which are respectively located at two sides of the positioning placement hole, and a positioning guide sleeve is fixedly provided in the positioning hole.

5. The needle seat and connector alignment structure according to claim 4, characterized in that: The needle seat is fixed with two positioning pins, each positioning pin corresponds to a positioning guide sleeve, and the end of the positioning pin is provided with a guiding arc surface.

6. The needle seat and connector alignment structure according to claim 5, characterized in that: A clearance gap is arranged on the circumference of one of the positioning pins, so that the contact surface between the positioning pin and the positioning guide sleeve is a local arc surface.

7. The needle seat and connector alignment structure according to claim 1, characterized in that: A needle protection block is provided on the upper side of the needle seat, the needle protection block is slidably connected to the needle seat, the needle protection block is provided with a plurality of through holes, through which the probe provided on the needle seat can pass through, a spring is provided between the needle protection block and the needle seat, and a pit is provided on the bottom wall of the needle protection block, in which the spring is provided.

8. The needle seat and connector alignment structure according to claim 1, characterized in that: The needle seat and connector alignment structure comprises a fixed plate, a movable plate and a flip plate, the connector placement seat is fixedly connected to the fixed plate, the needle seat is fixedly connected to the movable plate, the flip plate is hinged with the fixed plate, and a pressure block is fixedly connected to the flip plate.

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