A multi-contact high-precision pogo pin positioning structure

Abstract

The present invention relates to the field of electrical component connection technology, and in particular to a multi-contact, high-precision pogopin positioning structure, wherein the base is composed of four arc-shaped shells with a central opening, and the four arc-shaped shells form a circular ring; a connector assembly is provided inside the arc-shaped shell, and an upper cover with a central opening is provided above the connector assembly; a positioning unit a is provided on the arc-shaped shell, and positioning units b and c are provided on the connector assembly, and a positioning unit d is provided on the upper cover. By the mutual cooperation of the positioning unit a on the arc-shaped shell and the positioning unit b on the connector assembly, and the mutual cooperation of the positioning unit c on the connector assembly and the positioning unit d on the upper cover, the position of the connector assembly is fixed, thereby realizing the control of the pogopin position, with accurate positioning and reliable precision. The installation of the entire structure does not require the assembly of parts to eliminate the fitting gap, and only requires the connector assembly to be installed in a fixed position on the base, which is simple to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical component connection, and in particular to a multi-contact high-precision pogo pin positioning structure. Background Art

[0002] In order to catch up with the level of the international chip industry, strengthen the country's scientific and technological strength, enhance the domestic chip self-sufficiency capability, and meet the demand for chips in various domestic industries, various chip-related industries are now developing vigorously, and chip testing equipment is one of the necessary equipment.

[0003] Chip testing equipment tests chips to ensure proper function. Contact between the chip testing equipment and external chips is achieved through pogo pins on the equipment. Because the chip pins that contact the pogo pins are numerous, the tolerance for positional error is very small. Large deviations in pogo pin position can lead to test errors, resulting in defective chips or misjudgments, leading to chip waste. Therefore, controlling the pogo pin position throughout the equipment is crucial and a key parameter for device reliability.

[0004] To ensure the positioning accuracy of the pogo pins, plastic parts are riveted on the PCB boards in the market. These plastic parts not only fix the position of the pogo pins, but also fill the gaps between the PCB boards and fix the position of the PCB boards, thereby achieving the purpose of controlling the position of the pogo pins on the PCB boards.

[0005] This method of fixing the pogo pin position will face two problems. First, riveting plastic parts on the PCB board increases both cost and process difficulty. Second, as the gap between PCB boards becomes smaller and smaller, the PCB boards with riveted plastic wedges will become increasingly difficult to install. Adjusting the position of the PCB board requires increasing force. In most cases, manual operation cannot be completed and can only be done with the help of tools. If the installation is incorrect, removal and adjustment will be even more difficult.

[0006] To solve the above problems, a multi-contact high-precision pogo pin positioning structure is designed. Summary of the Invention

[0007] The present invention addresses the deficiencies of the prior art and provides a multi-contact, high-precision pogo pin positioning structure.

[0008] The present invention solves the above technical problems through the following technical means:

[0009] A multi-contact, high-precision pogo pin positioning structure includes a base, wherein the base is composed of four arc-shaped shells with a central opening, and the four arc-shaped shells form a ring;

[0010] A connector assembly is provided inside the arc-shaped housing, an upper cover with a central opening is provided above the connector assembly, a positioning unit a is provided on the arc-shaped housing, a positioning unit b and a positioning unit c are provided on the connector assembly, and a positioning unit d is provided on the upper cover. The positioning units a and b cooperate with each other, and the positioning units c and d cooperate with each other to fix the position of the connector assembly;

[0011] The connector assembly includes a plastic base, a pogo pin is provided inside the plastic base, the upper end of the pogo pin passes through the middle opening of the upper cover, and the lower end of the pogo pin is welded with a cable.

[0012] As an improvement of the above technical solution, the positioning unit a includes two positioning holes and two first positioning grooves provided on the arc-shaped housing;

[0013] The positioning unit b includes two first positioning ribs and two positioning columns arranged on the plastic base. The positioning columns and the positioning holes cooperate with each other, the first positioning rib and the first positioning groove cooperate with each other, and the positioning reference surface a formed on the bottom wall of the first positioning groove and the positioning reference surface b formed on the lower end of the first positioning rib are in contact.

[0014] As an improvement of the above technical solution, the positioning unit c includes two second positioning ribs provided on the plastic base;

[0015] The positioning unit d includes two second positioning grooves provided on the upper cover, the second positioning ribs cooperate with the second positioning grooves, and the upper cover positioning surface a provided on the plastic base contacts the upper cover positioning surface b provided on the upper cover.

[0016] As an improvement to the above technical solution, two steps are provided inside the arc-shaped shell, and two positioning holes are respectively distributed on the two steps, and a flange for mounting screws is provided on the outside of the arc-shaped shell;

[0017] As an improvement to the above technical solution, a positioning piece for fixing the position of the pogo pin is provided on the plastic base.

[0018] As an improvement to the above technical solution, one of the positioning holes is precisely matched with the corresponding positioning post, and the other positioning hole is 0.2 mm larger than the hole size of the corresponding positioning post.

[0019] As an improvement to the above technical solution, the end of the first positioning groove away from the plastic base is set to be semicircular, and the center of the semicircle and the center of the positioning hole are distributed on a straight line, which passes through the center of the ring formed by the arc-shaped shell.

[0020] As an improvement of the above technical solution, fifty-five groups of connector components are provided inside each of the arc-shaped shells, and the positioning unit a and the positioning unit d are both provided corresponding to the connector components.

[0021] As an improvement to the above technical solution, the arc-shaped shell and the upper cover are connected by screw threads.

[0022] Beneficial effects of the present invention:

[0023] The connector assembly is fixed in position by the coordination of positioning unit a on the arc-shaped housing and positioning unit b on the connector assembly, and positioning unit c on the connector assembly and positioning unit d on the upper cover, thereby achieving accurate and reliable position control of the pogo pin. The entire structure can be installed simply by mounting the connector assembly in a fixed position on the base, without the need for assembling parts to eliminate clearances.

[0024] The problem of controlling the precision of the pogo pin position in the connector assembly is solved by the coordinated positional relationship between the plastic base, the curved shell, and the upper cover in the connector assembly. The precision of the plastic base is controlled by the mold, and the precision of the curved shell is controlled by machining. The precision of both can be precisely controlled, so the position of the connector pogo pin can be well guaranteed. At the same time, no installation adjustment is required, simplifying the difficulty of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic top view of a multi-contact, high-precision pogo pin positioning structure according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the arc-shaped housing in the present invention from a first perspective;

[0027] Figure 3 This is a schematic structural diagram of the arc-shaped housing in the present invention from a second perspective;

[0028] Figure 4 Schematic diagram of the structure of the connector assembly of the present invention;

[0029] Figure 5 This is a schematic structural diagram of the lower end face perspective of the upper cover in the present invention;

[0030] Figure 6 Schematic diagram of the assembly cross section of the arc-shaped housing, connector assembly and upper cover in the present invention;

[0031] Figure 7 Schematic diagram of the distribution of the positioning holes and the first positioning grooves in the present invention;

[0032] Figure numerals: arc-shaped shell 1; step 101; positioning hole 102; first positioning groove 103; positioning reference surface a104; flange 105; connector assembly 2; plastic base 201; pogo pin 202; positioning piece 203; cable 204; first positioning rib 205; positioning reference surface b2051; positioning column 206; second positioning rib 207; upper cover positioning surface a208; upper cover 3; second positioning groove 301; upper cover positioning surface b302. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0035] Example

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, this embodiment provides a multi-contact, high-precision pogo pin positioning structure, including a base, which is composed of four arc-shaped shells 1 with a central opening. The four arc-shaped shells 1 form a ring, and a flange 105 for mounting screws is provided on the outer side of the arc-shaped shell 1;

[0037] A connector assembly 2 is provided inside the arc-shaped housing 1, and an upper cover 3 with a central opening is provided above the connector assembly 2. The arc-shaped housing 1 and the upper cover 3 are threadedly connected by screws. A positioning unit a is provided on the arc-shaped housing 1, a positioning unit b and a positioning unit c are provided on the connector assembly 2, and a positioning unit d is provided on the upper cover 3. The positioning units a and b cooperate with each other, and the positioning units c and d cooperate with each other to fix the position of the connector assembly 2.

[0038] The connector assembly 2 includes a plastic base 201 , inside which a pogo pin 202 is provided. The pogo pin 202 is fixed in the plastic base 201 by a positioning piece 203 . The upper end of the pogo pin 202 passes through the middle opening of the upper cover 3 , and the lower end of the pogo pin 202 is welded with a cable 204 .

[0039] In the present invention, the positioning unit a on the arcuate housing 1 cooperates with the positioning unit b on the connector assembly 2, and the positioning unit c on the connector assembly 2 cooperates with the positioning unit d on the upper cover 3 to secure the position of the connector assembly 2, thereby accurately and reliably controlling the position of the pogo pin 202. Installation of the entire structure requires no assembly of parts to eliminate clearances; it simply requires mounting the connector assembly 2 in a fixed position on the base, making it easy to operate.

[0040] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the positioning unit a includes two positioning holes 102 and two first positioning grooves 103 provided on the arc-shaped shell 1, and the two positioning holes 102 are respectively distributed on the two steps 101 provided in the arc-shaped shell 1; the positioning unit b includes two first positioning ribs 205 and two positioning columns 206 provided on the plastic base 201, the positioning columns 206 and the positioning holes 102 cooperate with each other, and the first positioning rib 205 and the first positioning groove 103 cooperate with each other. During the processing, the first positioning rib 205 is molded, and the dimensional accuracy is controlled at 0.02mm. The first positioning groove 103 is machined, and the dimensional accuracy is controlled at 0.02mm. The positioning reference surface a104 formed on the inner bottom wall of the first positioning groove 103 is in contact with the positioning reference surface b2051 formed on the lower end of the first positioning rib 205.

[0041] The positioning unit c includes two second positioning ribs 207 set on the plastic base 201; the positioning unit d includes two second positioning grooves 301 set on the upper cover 3, the second positioning ribs 207 and the second positioning grooves 301 cooperate with each other, and the upper cover positioning surface a208 set on the plastic base 201 is in contact with the upper cover positioning surface b302 set on the upper cover 3.

[0042] Taking into account the warping of the plastic, one of the positioning holes 102 is precisely matched with the corresponding positioning post 206, and the other positioning hole 102 is 0.2 mm larger than the aperture size of the corresponding positioning post 206, ensuring the normal fit between the positioning post 206 and the positioning hole 102, thereby controlling the movement position of the connector assembly 2 along the center direction of the base.

[0043] The first positioning groove 103 is set to a semicircular shape at one end away from the plastic base 201. The center of the semicircle and the center of the positioning hole 102 are distributed on a straight line. The straight line passes through the center of the circle formed by the arc-shaped shell 1. Figure 7 Each arc-shaped housing 1 is provided with fifty-five groups of connector components 2 inside, and the positioning units a and d are provided correspondingly to the connector components 2 .

[0044] In the present invention, the contact arrangement of the positioning reference surface a104 and the positioning reference surface b2051, and the contact arrangement of the upper cover positioning surface a208 and the upper cover positioning surface b302, control the vertical position of the connector assembly 2; the first positioning rib 205 and the first positioning groove 103 are cooperatively arranged to control the left and right position of the connector assembly 2; the cooperative arrangement of the positioning hole 102 and the positioning column 206 controls the position along the center direction of the base;

[0045] The pogo pin 202 is fixedly installed inside the plastic base 201 , thereby achieving control of the position of the pogo pin 202 by controlling the position of the connector assembly 2 , with accurate positioning and reliable precision.

[0046] In the present invention, the problem of position accuracy control of the pogo pin 202 in the connector assembly 2 is solved by the mutual positional coordination between the plastic base 201 in the connector assembly 2 and the arc-shaped shell 1 and the upper cover 3. The precision of the plastic base 201 is controlled by the mold, and the precision of the arc-shaped shell 1 is controlled by machining. The precision of both can be precisely controlled, so the position of the connector pogo pin 202 can be well guaranteed; at the same time, no installation adjustment is required, which simplifies the difficulty of installation and disassembly.

[0047] It should be noted that, in this document, if there are relational terms such as first and second, etc., they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-contact, high-precision pogo pin positioning structure, characterized by: The base comprises a base, wherein the base is composed of four arc-shaped shells (1) with openings in the middle, and the four arc-shaped shells (1) form a ring; A connector assembly (2) is provided inside the arc-shaped shell (1), an upper cover (3) with a central opening is provided above the connector assembly (2), a positioning unit a is provided on the arc-shaped shell (1), a positioning unit b and a positioning unit c are provided on the connector assembly (2), and a positioning unit d is provided on the upper cover (3), the positioning unit a and the positioning unit b cooperate with each other, and the positioning unit c and the positioning unit d cooperate with each other, thereby fixing the position of the connector assembly (2); The connector assembly (2) includes a plastic base (201), a pogo pin (202) is provided inside the plastic base (201), the upper end of the pogo pin (202) passes through the middle opening of the upper cover (3), and the lower end of the pogo pin (202) is welded with a cable (204); The positioning unit a comprises two positioning holes (102) and two first positioning grooves (103) provided on the arc-shaped shell (1); the positioning unit b comprises two first positioning ribs (205) and two positioning columns (206) provided on the plastic base (201); the positioning columns (206) and the positioning holes (102) cooperate with each other, the first positioning ribs (205) and the first positioning groove (103) cooperate with each other, and the positioning reference surface a (104) formed on the inner bottom wall of the first positioning groove (103) and the positioning reference surface b (2051) formed at the lower end of the first positioning rib (205) are in contact; The positioning unit c includes two second positioning ribs (207) provided on the plastic base (201); the positioning unit d includes two second positioning grooves (301) provided on the upper cover (3); the second positioning ribs (207) and the second positioning grooves (301) cooperate with each other, and the upper cover positioning surface a (208) provided on the plastic base (201) contacts the upper cover positioning surface b (302) provided on the upper cover (3); One of the positioning holes (102) precisely matches the corresponding positioning post (206), and the other positioning hole (102) is 0.2 mm larger than the aperture of the corresponding positioning post (206); The end of the first positioning groove (103) away from the plastic base (201) is set as a semicircle, and the center of the semicircle and the center of the positioning hole (102) are distributed on a straight line, and the straight line passes through the center of the ring formed by the arc-shaped shell (1).

2. The multi-contact high-precision pogo pin positioning structure according to claim 1, characterized in that: Two steps (101) are provided inside the arc-shaped shell (1), and two positioning holes (102) are respectively distributed on the two steps (101). A flange (105) for mounting screws is provided on the outside of the arc-shaped shell (1).

3. The multi-contact high-precision pogo pin positioning structure according to claim 1, characterized in that: The plastic base (201) is provided with a positioning piece (203) for fixing the position of the pogo pin (202).

4. The multi-contact high-precision pogo pin positioning structure according to claim 1, characterized in that: Fifty-five groups of connector components (2) are arranged inside each of the arc-shaped shells (1), and the positioning units a and the positioning units d are arranged corresponding to the connector components (2).

5. The multi-contact high-precision pogo pin positioning structure according to claim 1, characterized in that: The arc-shaped housing (1) and the upper cover (3) are connected via screw threads.

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