Compliant pins
By designing compliance pins with spring characteristics to constrain the movement of the printed circuit board, the problem of interrupted electrical connection between the compliance pins and the PCB is solved, and a more stable electrical connection is achieved.
Patent Information
- Application Number
- CN202410799654.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-02
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-18
AI Technical Summary
Movement between the compliance pins and the printed circuit board (PCB) can cause discontinuity of electrical connections, especially under vibration and mechanical shock, resulting in PCB wear and weak or interruption of electrical connections.
A compliance pin including a main area part and a first insertion area part is designed, the first insertion area part has a spring feature, and is compressed and elastic during the insertion process is restored, thereby constraining the movement of the PCB. , thereby improving electrical connections.
By constraining the movement of the PCB, wear is reduced, and the electrical connection stability between the compliance pin and the PCB is improved, thereby avoiding interruption of the electrical connection.
Smart Images
Figure CN119481769A_ABST
Abstract
Description
Technical Field
[0001] Example embodiments of the present disclosure relate generally to compliant pins and, more particularly, in some examples, to compliant pins for connecting to a printed circuit board (PCB). Background Art
[0002] Applicants have recognized the many technical challenges and difficulties associated with using compliant pins to connect to printed circuit boards (PCBs). Through exerted effort, ingenuity, and innovation, Applicants have addressed the problems associated with improving the location characteristics of compliant pins by developing solutions embodied in the present disclosure, which are described in detail below. Summary of the Invention
[0003] Various embodiments described herein relate to a compliant pin for connecting to a printed circuit board (PCB).
[0004] According to various embodiments of the present disclosure, a compliant pin is provided. The compliant pin includes, but is not limited to, a main section; and a first insertion section, which is located on a first end of the main section and is configured to be inserted into a through-hole of a printed circuit board (PCB) to provide an electrical connection between the compliant pin and the PCB. The first insertion section includes, but is not limited to, a contact portion; a first spring positioned on a first end of the contact portion, wherein the first spring is configured to be compressed during the insertion process and to restore elasticity when the first spring passes through the through-hole of the PCB; and a second spring positioned on a second end of the contact portion, wherein the second spring is configured to stop the first insertion section when the first spring passes through the through-hole of the PCB, and the first and second springs constrain the movement of the PCB.
[0005] In some embodiments, the first insertion region has an eye-of-a-needle structure.
[0006] In some embodiments, the second spring is configured to contact the first surface of the PCB, and the first spring is configured to contact the second surface of the PCB to constrain movement of the PCB when the first spring passes through the through hole of the PCB.
[0007] In some embodiments, the contact portion includes a middle portion that protrudes away from the longitudinal axis of the first insertion section.
[0008] In some embodiments, the intermediate portion is configured to be compressed by the through-hole of the PCB when the first insertion section passes through the through-hole of the PCB.
[0009] In some embodiments, the through-hole of the PCB includes conductive plated sidewalls, and the intermediate portion is configured to be compressed by the conductive plated sidewalls to provide an electrical connection between the compliant pin and the PCB.
[0010] In some embodiments, the conductive plated sidewall extends between the first surface of the PCB and the second surface of the PCB.
[0011] In some embodiments, the first insertion section has a cylindrical structure.
[0012] In some embodiments, the contact portion includes a plurality of contact slits distributed around the longitudinal axis of the first insertion section.
[0013] In some embodiments, the plurality of contact crevices are evenly distributed around the longitudinal axis of the first insertion section.
[0014] In some embodiments, the contact portion includes four contact slits evenly distributed around the longitudinal axis of the first insertion section.
[0015] In some embodiments, each of the plurality of contact crevices includes a middle portion configured to be compressed by the through-hole of the PCB when the first insertion section passes through the through-hole of the PCB.
[0016] In some embodiments, the through-hole of the PCB includes conductive plated sidewalls, and the intermediate portion is configured to be compressed by the conductive plated sidewalls to provide an electrical connection between the compliant pin and the PCB.
[0017] In some embodiments, the conductive plated sidewall extends between the first surface of the PCB and the second surface of the PCB.
[0018] In some embodiments, the compliant pins are formed by a stamping process.
[0019] In some embodiments, the first spring and the second spring are made of the same material, wherein the same material includes at least one of epoxy, plastic, and metal.
[0020] In some embodiments, the first spring and the second spring are on opposite sides of a longitudinal axis of the first insertion section.
[0021] In some embodiments, the PCB includes at least one of epoxy, ceramic, alumina, and liquid crystal polymer (LCP).
[0022] In some embodiments, the compliant pin also includes a second insertion area located on the second end of the main area and configured to be inserted into a through hole of another PCB to provide an electrical connection between the compliant pin and the other PCB, wherein the first insertion area and the second insertion area have the same structure.
[0023] In some embodiments, a PCB is electrically connected to another PCB via compliant pins.
[0024] The above exemplary invention contents and other exemplary objects and / or advantages of the present disclosure and the manner in which these objects and / or advantages are achieved are further explained in the following detailed description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The description of the exemplary embodiments may be read in conjunction with the accompanying drawings. It will be understood that, for simplicity and clarity of illustration, the elements shown in the figures are not necessarily drawn to scale unless otherwise described. For example, the dimensions of some of the elements may be exaggerated relative to other elements unless otherwise described. Embodiments incorporating the teachings of the present disclosure are shown and described with respect to the drawings presented herein, in which:
[0026] Figure 1 shows a perspective view of an exemplary compliant pin according to various embodiments of the present disclosure;
[0027] Figure 2A and Figure 2B shows cross-sectional and isometric views of an exemplary compliant pin inserted into an exemplary printed circuit board (PCB) according to various embodiments of the present disclosure;
[0028] Figure 3 shows a perspective view of an exemplary compliant pin according to various embodiments of the present disclosure;
[0029] Figure 4A and Figure 4B shows cross-sectional and isometric views of an exemplary compliant pin inserted into an exemplary PCB according to various embodiments of the present disclosure; and
[0030] Figure 5A and Figure 5B Perspective and cross-sectional views are shown of an exemplary compliant pin inserted into an exemplary PCB according to various embodiments of the present disclosure. DETAILED DESCRIPTION
[0031] Some embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, which illustrate some, but not all, embodiments of the present disclosure. Indeed, these disclosures may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Throughout, like reference numerals refer to like elements.
[0032] As used herein, terms such as "front," "rear," "top," and the like are used for illustrative purposes in the examples provided below to describe the relative positions of certain components or portions of components. Additionally, as will be apparent to one of ordinary skill in the art from this disclosure, the terms "substantially" and "approximately" indicate that the referenced element or associated description is accurate within applicable engineering tolerances.
[0033] As used herein, the term "comprising" means including but not limited to, and should be interpreted in the manner commonly used in a patent context. It should be understood that the use of broad terms such as "comprising," "including," and "having" provides support for narrower terms such as "consisting of," "consisting essentially of," and "composed essentially of."
[0034] The phrases "in one embodiment," "according to one embodiment," etc. generally mean that the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure, and may be included in more than one embodiment of the present disclosure (importantly, such phrases are not necessarily referring to the same embodiment).
[0035] The word “example” or “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other implementations.
[0036] The term "electrically coupled" or "electronically communicates with..." in this disclosure may refer to two or more electrical components (such as, but not limited to, exemplary processing circuits, communication modules, input / output modules, memories) and / or circuits being connected by wired means (such as, but not limited to, conductive wires or traces) and / or wireless means (such as, but not limited to, wireless networks, electromagnetic fields) so that data and / or information such as electronic indications, signals (e.g., electronic indications, signals) can be transmitted to the electrically coupled electrical components and / or circuits and / or can be received from the electrically coupled electrical components and / or circuits.
[0037] The term "compliant pin" in this disclosure may refer to a pin that can be configured to be inserted into a through-hole of a printed circuit board (PCB) so that contact between the pin and the through-hole of the PCB can result in an electrical connection between the pin and the PCB. For example, the contact between the pin and the through-hole of the PCB can be achieved through a contact region such as a needle eye region, a columnar region, etc. In some examples, the compliant pin can be used as a terminal of an electrical device. In some examples, the compliant pin can provide mechanical support for the PCB and / or the electrical device. In some examples, the compliant pin can also be referred to as a press-fit pin.
[0038] If the specification states that a component or feature "may," "could," "would," "should," "will," "preferably," "likely," "typically," "optionally," "for example," "often," or "might" (or other such language) be included or have a characteristic, that particular component or feature is not required to be included or have that characteristic. Such components or features may optionally be included in some embodiments, or may be excluded.
[0039] Various exemplary embodiments address exemplary technical issues associated with compliant pins for connecting to printed circuit boards (PCBs). As will be appreciated by those skilled in the art, for example, movement between the compliant pin and the PCB may result in a discontinuity in the electrical connection between the compliant pin and the PCB. For example, vibration and / or mechanical shock may cause axial movement between the compliant pin and the PCB, which may result in wear and tear on the PCB. As a result, the electrical connection between the compliant pin and the PCB may become weak or discontinuous. Therefore, it is desirable to constrain movement between the compliant pin and the PCB.
[0040] To address at least these exemplary issues and others, in some examples, the exemplary compliant pins described herein improve electrical connection with a PCB by providing a spring feature to limit movement of the PCB. For example, the exemplary compliant pins may include a first spring and a second spring positioned at either end of a contact portion of the exemplary compliant pin. In some examples, the first and second springs may be configured to constrain movement of the PCB when the first spring passes through a through-hole in the PCB. Consequently, movement between the PCB and the exemplary compliant pins is reduced, which in some examples can reduce wear on the PCB and improve the electrical connection between the PCB and the exemplary compliant pins.
[0041] Now refer to Figure 1 , provides an example diagram showing a perspective view of an exemplary compliant pin 100 according to some exemplary embodiments described herein. Figure 1As shown, exemplary compliant pin 100 may include a main section 101 and an insert section 102 positioned at a first end 101a of main section 101. Insert section 102 may be attached to main section 101, for example.
[0042] In some embodiments, interposer section 102 can include contact portion 103. In some examples, interposer section 102 can be configured to carry electrical signals to and / or from through-holes of a PCB (not shown).
[0043] In some examples, the insertion area 102 may have a needle eye structure. For example, the needle eye structure may include two opposing arms (e.g., 102a and 102b). In some examples, an outward force may be applied when the two opposing arms are compressed inwardly.
[0044] In some examples, the contact portion 103 may include a middle portion 103c that protrudes away from the longitudinal axis 110 of the insertion section 102. For example, when the insertion section 102 is inserted into a through-hole of a PCB, the middle portion 103c may be compressed by the sidewalls of the through-hole of the PCB, thereby electrically connecting the contact portion 103 and the sidewalls of the through-hole of the PCB. In some examples, when the insertion section 102 is inserted into the through-hole of the PCB, the two opposing arms (e.g., 102a and 102b) may be compressed by the sidewalls of the through-hole of the PCB, thereby electrically connecting the contact portion 103 and the sidewalls of the through-hole of the PCB.
[0045] In some embodiments, the insertion section 102 may further include a first spring 104 and a second spring 105. For example, the first spring 104 may be positioned at a first end 103a of the contact portion 103 along the longitudinal axis 110 of the insertion section 102. For example, the second spring 105 may be positioned at a second end 103b of the contact portion 103 along the longitudinal axis 110 of the insertion section 102. In some examples, the first spring 104 and the second spring 105 may be positioned on opposite sides of the longitudinal axis 110 of the insertion section 102.
[0046] In some examples, first spring 104 and second spring 105 can be formed by a stamping process. In some examples, first spring 104, second spring 105, and contact portion 103 can be made of the same material. In some examples, first spring 104 and second spring 105 can be made of the same material but different from contact portion 103. For example, first spring 104 and second spring 105 can be made of epoxy, ceramic, plastic, metal, or combinations thereof.
[0047] In some examples, each of the first spring 104 and the second spring 105 can be a protrusion from the surface of the contact portion 103 in the axial direction 111 of the insertion section 102. For example, the axial direction 111 of the insertion section 102 can be perpendicular to the longitudinal axis 110 of the insertion section 102.
[0048] In some examples, the first spring 104 and the second spring 105 may be separated by 180° from one another about the longitudinal axis 110 of the insertion section 102 .
[0049] In some embodiments, when exemplary compliant pin 100 begins to be inserted into a through-hole of a PCB along the longitudinal axis 110 of insertion section 102, first spring 104 may be compressed by the sidewalls of the through-hole during the insertion process. In some examples, as exemplary compliant pin 100 is further inserted into the through-hole of the PCB, first spring 104 may regain its elasticity after passing through the through-hole of the PCB, such that first spring 104 and second spring 105 may constrain movement of the PCB.
[0050] In some examples, the exemplary compliance pin 100 can be configured to provide power to a PCB and / or a sensor device (not shown). In some examples, the exemplary compliance pin 100 can be configured to provide a signal path to a PCB and / or a sensor device.
[0051] Now refer to Figure 2A and Figure 2B , provides example diagrams showing a cross-sectional view 200A and an isometric view 200B of an exemplary compliant pin 100 inserted into an exemplary PCB 201 according to some exemplary embodiments described herein. For example, Figure 2A and Figure 2B As shown, the exemplary compliance pin 100 can be inserted into the exemplary PCB 201 to provide an electrical connection between the exemplary compliance pin 100 and the exemplary PCB 201. Figure 2A and Figure 2B The components of the exemplary compliance pin 100 described in Figure 1 Components of the exemplary compliant pin 100 described in . In some examples, this document Figure 2B The components of the exemplary PCB 201 described in Figure 2A Components of the exemplary PCB 201 described in .
[0052] In some embodiments, exemplary PCB 201 may include a through-hole 204. In some examples, through-hole 204 may have a sidewall 205 extending between first surface 202 of exemplary PCB 201 and second surface 203 of exemplary PCB 201. In some examples, sidewall 205 of through-hole 204 may be a conductive plated sidewall extending and / or connecting first surface 202 of exemplary PCB 201 and second surface 203 of exemplary PCB 201. In some examples, through-hole 204 may be a plated through-hole (PTH). In some examples, through-hole 204 may be a non-plated through-hole (NPTH).
[0053] In some examples, sidewalls 205 of via 204 may include at least one conductive material configured to carry electrical signals to and / or from compliant pin 100 to sidewalls 205 of via 204. For example, the at least one conductive material may be copper, aluminum, gold, silver, combinations thereof, or the like.
[0054] In some examples, the exemplary PCB 201 may be or include epoxy, ceramic, alumina, liquid crystal polymer (LCP), combinations thereof, or the like.
[0055] In some embodiments, when the exemplary compliant pin 100 begins to be inserted into the through hole 204 of the exemplary PCB 201 along the direction of the longitudinal axis 110 of the insertion section 102 (e.g., the z direction), the first spring 104 may be compressed by the sidewalls 205 of the through hole 204 of the PCB 201 during the insertion process.
[0056] In some embodiments, as the exemplary compliant pin 100 is further inserted into the through hole 204 of the exemplary PCB 201, the first spring 104 may pass through the through hole 204, as shown in FIG. Figure 2A shown.
[0057] In some examples, second spring 105 can stop example compliant pin 100 from being further inserted into through-hole 204 of example PCB 201 when second spring 105 contacts first surface 202 of example PCB 201. In some examples, second spring 105 can be configured to determine the insertion depth of example compliant pin 100.
[0058] In some embodiments, when the first spring 104 passes through the through-hole 204 , the first spring 104 may restore elasticity, and thus the first spring 104 may contact the second surface 203 of the exemplary PCB 201 .
[0059] In some examples, the example PCB 201 is configured to be positioned between the first spring 104 and the second spring 105 such that movement of the example PCB 201 in the direction of the longitudinal axis 110 of the insertion section 102 (eg, the z-direction) is constrained.
[0060] In some embodiments, the insertion section 102 may have a pinhole structure (not shown). For example, when the insertion section 102 is inserted into the through-hole 204 of the exemplary PCB 201, the pinhole structure may be compressed in the x-direction by the sidewall 205 of the through-hole 204 of the exemplary PCB 201, so that the contact portion 103 and the sidewall 205 of the through-hole 204 of the exemplary PCB 201 can be electrically connected.
[0061] In some examples, the axial retention force between the contact portion 103 and the sidewall 205 of the through-hole 204 of the example PCB 201 can depend on the diameter of the through-hole 204 of the example PCB 201 and the size of the contact portion 103 .
[0062] In some embodiments, example compliance pins 100 may be used to connect example PCB 201 with a sensor device (not shown) such that the planarity of the PCB may be maintained.
[0063] Now refer to Figure 3 , provides an example diagram showing a perspective view of an exemplary compliant pin 300 according to some exemplary embodiments described herein. Figure 3 As shown, exemplary compliant pin 300 may include a main section 301 and an insert section 302 positioned at a first end 301a of main section 301. Insert section 302 may be attached to main section 301, for example.
[0064] In some embodiments, interposer section 302 can include contact portion 303. In some examples, interposer section 302 can be configured to carry electrical signals to and / or from through-holes of a PCB (not shown).
[0065] In some examples, the contact portion 303 can have a cylindrical structure. In some examples, the contact portion 303 can include a plurality of contact crevices 306 evenly distributed around the longitudinal axis 310 of the insertion section 302. For example, the contact portion 303 can include four contact crevices 306 evenly distributed around the longitudinal axis 310 of the insertion section 302.
[0066] In some examples, each of the plurality of contact slits 306 may have a middle portion 306a that protrudes away from the longitudinal axis 310 of the insertion section 302. For example, when the insertion section 302 is inserted into a through-hole of a PCB, the middle portion 306a may be compressed by the sidewall of the through-hole of the PCB, so that the contact portion 303 and the sidewall of the through-hole of the PCB can be electrically connected.
[0067] In some embodiments, the insertion section 302 may further include a first spring 304 and a second spring 305. For example, the first spring 304 may be positioned at a first end 303a of the contact portion 303 along the longitudinal axis 310 of the insertion section 302. For example, the second spring 305 may be positioned at a second end 303b of the contact portion 303 along the longitudinal axis 310 of the insertion section 302. In some examples, the first spring 304 and the second spring 305 may be positioned on opposite sides of the longitudinal axis 310 of the insertion section 302.
[0068] In some examples, each of the first spring 304 and the second spring 305 can be a protrusion from the surface of the contact portion 303 in the axial direction 311 of the insertion section 302. For example, the axial direction 311 of the insertion section 302 can be perpendicular to the longitudinal axis 310 of the insertion section 302.
[0069] In some examples, the first spring 304 and the second spring 305 may be separated by 180° from one another about the longitudinal axis 310 of the insertion section 302 .
[0070] In some examples, first spring 304 and second spring 305 can be formed by a stamping process. In some examples, first spring 304, second spring 305, and contact portion 303 can be made of the same material. In some examples, first spring 304 and second spring 305 can be made of the same material but different from contact portion 303. For example, first spring 304 and second spring 305 can be made of epoxy, ceramic, plastic, metal, or combinations thereof.
[0071] In some embodiments, when exemplary compliant pin 300 is initially inserted into a through-hole of a PCB along the longitudinal axis 310 of insertion section 302, first spring 304 may be compressed by the sidewalls of the through-hole during the insertion process. In some examples, as exemplary compliant pin 300 is further inserted into the through-hole of the PCB, first spring 304 may regain its elasticity after passing through the through-hole, such that first spring 304 and second spring 308 may constrain movement of the PCB.
[0072] In some examples, the example compliance pin 300 can be configured to provide power to a PCB and / or a sensor device (not shown). In some examples, the example compliance pin 300 can be configured to provide a signal path to a PCB and / or a sensor device.
[0073] Now refer to Figure 4A and Figure 4B , provides example diagrams showing a cross-sectional view 400A and an isometric view 400B of an exemplary compliant pin 300 inserted into an exemplary PCB 401 according to some exemplary embodiments described herein. For example, Figure 4A and Figure 4B As shown, the exemplary compliance pin 300 can be inserted into the exemplary PCB 401 to provide an electrical connection between the exemplary compliance pin 300 and the exemplary PCB 401. Figure 4A and Figure 4B The components of the exemplary compliance pin 300 described in Figure 1 Components of the exemplary compliance pin 300 described in . In some examples, this document Figure 4B The components of the exemplary PCB 401 described in Figure 4A Components of the exemplary PCB 401 described in .
[0074] In some embodiments, as Figure 4A and Figure 4B As shown, example PCB 401 may include a through-hole 404. In some examples, through-hole 404 may have a sidewall 405 extending between a first surface 402 of example PCB 401 and a second surface 403 of example PCB 401. In some examples, sidewall 405 of through-hole 404 may be a conductive plated sidewall extending and / or connecting first surface 402 of example PCB 401 and second surface 403 of example PCB 401.
[0075] In some examples, sidewalls 405 of via 404 may include at least one conductive material configured to carry electrical signals to and / or from compliant pin 300 to sidewalls 405 of via 404. For example, the at least one conductive material may be copper, aluminum, gold, silver, combinations thereof, and the like.
[0076] In some examples, the exemplary PCB 401 may be or include epoxy, ceramic, alumina, liquid crystal polymer (LCP), combinations thereof, or the like.
[0077] In some embodiments, when the exemplary compliant pin 300 begins to be inserted into the through hole 404 of the exemplary PCB 401 along the direction of the longitudinal axis 310 of the insertion section 302 (e.g., the z direction), the first spring 304 can be compressed by the sidewalls 405 of the through hole 404 during the insertion process.
[0078] In some embodiments, as the exemplary compliant pin 300 is further inserted into the through hole 404 of the exemplary PCB 401, the first spring 304 may pass through the through hole 404, as shown in FIG. Figure 4A shown.
[0079] In some examples, second spring 305 can stop example compliant pin 300 from being further inserted into through-hole 404 of example PCB 401 when second spring 305 is in contact with first surface 402 of example PCB 401. In some examples, second spring 305 can be configured to determine the insertion depth of example compliant pin 300.
[0080] In some embodiments, when the first spring 304 passes through the through-hole 404 , the first spring 304 may restore elasticity, and thus the first spring 304 may contact the second surface 403 of the exemplary PCB 401 .
[0081] In some examples, the example PCB 401 is configured to be positioned between the first spring 304 and the second spring 305 such that movement of the example PCB 401 in the direction of the longitudinal axis 310 of the insertion section 302 (eg, the z-direction) is constrained.
[0082] In some examples, when the insertion section 302 is inserted into the through-hole 404 of the exemplary PCB 401, the plurality of contact crevices 306 may be compressed in an axial direction by the sidewalls 405 of the through-hole 404 of the exemplary PCB 401, such that the contact portions 303 and the sidewalls 405 of the through-hole 404 of the exemplary PCB 401 may be electrically coupled. For example, the axial direction may be perpendicular to the longitudinal axis 310 of the insertion section 302.
[0083] In some examples, the axial retention force between the contact portion 303 and the sidewall 405 of the through-hole 404 of the example PCB 401 can depend on the diameter of the through-hole 404 of the example PCB 401 and the size of the contact portion 303 .
[0084] In some embodiments, example compliance pins 400 may be used to connect example PCB 401 with a sensor device (not shown) such that the planarity of the PCB may be maintained.
[0085] Now refer to Figure 5A and Figure 5B, provides example diagrams showing a perspective view 500A and a cross-sectional view 500B of an exemplary compliant pin 500 inserted into an exemplary PCB 401 according to some exemplary embodiments described herein. For example, Figure 5A and Figure 5B As shown, exemplary compliant pin 500 can be inserted into exemplary PCB 401 to provide an electrical connection between exemplary PCB 401. In some examples, exemplary compliant pin 500 may include a main section 301, a first insertion section 302a positioned at a first end 301a of main section 301, and a second insertion section 302b positioned at a second end 301b of main section 301. For example, first insertion section 302a and second insertion section 302b may be attached to main section 301.
[0086] In some embodiments, the present invention Figure 5A and Figure 5B The components of the first insertion section 302a described in Figure 4A and Figure 4B In some examples, the components of the insertion area 302 described herein are Figure 5A and Figure 5B The components of the second insertion section 302b described in Figure 4A and Figure 4B Components of the insertion area 302 described in.
[0087] In some embodiments, as the example compliant pin 500 continues to be inserted into the through-hole 404a of the example PCB 401a, the first spring 304a of the first insertion section 302a can pass through the through-hole 404a of the example PCB 401a.
[0088] In some examples, when the second spring 305a of the first insertion section 302a contacts the first surface 402a of the example PCB 401a, the second spring 305a of the first insertion section 302a can stop the example compliant pin 500 from being further inserted into the through hole 404a of the example PCB 401a. In some examples, the second spring 305a of the first insertion section 302a can be configured to determine a first insertion depth of the example compliant pin 500 into the example PCB 401a.
[0089] In some embodiments, when the first spring 304a of the first insertion section 302a passes through the through hole 404a of the exemplary PCB 401a, the first spring 304a of the first insertion section 302a can restore elasticity, and thus the first spring 304a of the first insertion section 302a can contact the second surface 403a of the exemplary PCB 401a.
[0090] In some examples, the exemplary PCB 401a is configured to be placed between a first spring 304a of the first insertion section 302a and a second spring 305a of the first insertion section 302a such that movement of the exemplary PCB 401a in the direction of the longitudinal axis 310 of the first insertion section 302a (e.g., the z direction) is constrained.
[0091] In some embodiments, as the example compliant pin 500 continues to be inserted into the through-hole 404b of the example PCB 401b, the first spring 304b of the second insertion section 302b may pass through the through-hole 404b of the example PCB 401b.
[0092] In some examples, when second spring 305b of second insertion section 302b contacts first surface 402b of example PCB 401b, second spring 305b of second insertion section 302b can stop example compliant pin 500 from being further inserted into through hole 404b of example PCB 401b. In some examples, second spring 305b of second insertion section 302b can be configured to determine a second insertion depth of example compliant pin 500 into example PCB 401b.
[0093] In some embodiments, when the first spring 304b of the second insertion section 302b passes through the through hole 404b of the exemplary PCB 401b, the first spring 304b of the second insertion section 302b can restore elasticity, and thus the first spring 304b of the second insertion section 302b can contact the second surface 403b of the exemplary PCB 401b.
[0094] In some examples, the exemplary PCB 401b is configured to be positioned between a first spring 304b of the second insertion section 302b and a second spring 305b of the second insertion section 302b such that movement of the exemplary PCB 401b in the direction of the longitudinal axis 310 of the first insertion section 302a (e.g., the z direction) is constrained.
[0095] In some examples, example PCB 401 a is electrically connected to example PCB 401 b via example compliance pins 500 .
[0096] In some embodiments, the present invention Figure 5A and Figure 5B The components of the exemplary PCB 401a described in Figure 4A and Figure 4B Components of the exemplary PCB 401 described in . In some examples, this document Figure 5A and Figure 5BThe components of the exemplary PCB 401b described in FIG. 4 may correspond to the components of the exemplary PCB 401b described in FIG. Figure 4A and Figure 4B Components of the exemplary PCB 401 described in .
[0097] In some embodiments, more than one exemplary compliance pin 500 can be used to connect exemplary PCB 401a and exemplary PCB 401b. In some examples, more than one exemplary compliance pin 500 can be used as a standoff for mechanical support between exemplary PCB 401a and exemplary PCB 401b so that the flatness of the printed circuit board assembly (PCBA) can be maintained.
[0098] It should be understood that the present disclosure is not limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, unless otherwise indicated, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims
1. A compliant pin, comprising: Main District Department; and A first insertion section, the first insertion section is located on the first end of the main section and is configured to be inserted into a through hole of a printed circuit board (PCB) to provide an electrical connection between the compliant pin and the PCB, wherein the first insertion section includes: Contact part; a first spring positioned on a first end of the contact portion, wherein the first spring is configured to be compressed during an insertion process and to restore elasticity when the first spring passes through the through hole of the PCB; and A second spring is positioned on a second end of the contact portion, wherein the second spring is configured to stop the first insertion section when the first spring passes through the through hole of the PCB, and the first spring and the second spring constrain movement of the PCB. The compliant pin of claim 1 , wherein the first insertion region has an eye-of-a-needle structure.
3. The compliant pin of claim 1 , wherein: The second spring is configured to contact a first surface of the PCB, and the first spring is configured to contact a second surface of the PCB to restrict the movement of the PCB when the first spring passes through the through hole of the PCB. 4 . The compliant pin of claim 1 , wherein the contact portion includes a middle portion that projects away from a longitudinal axis of the first insertion section. 5 . The compliant pin of claim 4 , wherein the intermediate portion is configured to be compressed by the through hole of the PCB when the first insertion section passes through the through hole of the PCB.
6. The compliant pin of claim 5, wherein: The through hole of the PCB includes conductive plated sidewalls, and The intermediate portion is configured to be compressed by the conductive plated sidewalls to provide an electrical connection between the compliant pin and the PCB.
7. The compliant pin of claim 6, wherein: The conductive plated sidewall extends between a first surface of the PCB and a second surface of the PCB. The compliant pin of claim 1 , wherein the first insertion section has a columnar structure.
9. The compliant pin of claim 1, wherein the contact portion comprises a plurality of contact gaps distributed around a longitudinal axis of the first insertion section.
10. The compliant pin of claim 9, wherein the plurality of contact gaps are evenly distributed around the longitudinal axis of the first insertion section.