Pogo pin contact assembly for electronic device and electronic device

Abstract

Disclosed are a pogo pin contact assembly for an electronic device and the electronic device. The pogo pin contact assembly comprises a post adapted to be connected to a device housing of the electronic device, a sleeve comprising a cylindrical portion with one end open and a sleeve bottom portion closing the other end of the cylindrical portion, the sleeve being sleeved on the post with the open end of the sleeve facing downward, and a spring member arranged between the post and the sleeve within the sleeve. The electronic device comprises a device housing with a contact hole formed thereon, electronic components arranged in the device housing, and a pogo pin contact assembly installed in the contact hole, the post of the pogo pin contact assembly being fixedly connected to the device housing, and a portion of the sleeve extending out of the contact hole.

Description

Technical Field

[0001] This utility model relates to a spring pin contact assembly for an electronic device and an electronic device including the spring pin contact assembly. Background Technology

[0002] A pogo pin is a widely used flexible electrical contact, commonly used in charging interfaces, signal testing, and data transmission. Its basic structure typically consists of three parts: a plunger, a spring, and a barrel. At the engagement position of the pogo pin assembly, the spring is compressed, and its elastic force presses the plunger against the corresponding electrical contact, thus achieving a reliable electrical connection between the pogo pin assembly and the corresponding electrical contact.

[0003] While spring-loaded pin contact assemblies offer advantages such as mature manufacturing processes, simple structures, and convenient assembly, they still reveal a series of technical drawbacks in practical applications. Specifically, in applications such as earphone charging cases, electric toothbrushes, and smartwatches, the spring pins are typically exposed. External liquids (such as sweat, moisture, rainwater, or other liquid impurities) or dust can easily enter the spring-loaded pin contact assembly. Once inside the connector, liquids or dust can easily cause metal corrosion, plunger jamming, and other problems, damaging the plunger surface plating, reducing conductivity, and hindering elastic recovery. This can lead to poor contact, abnormal charging, data interruption, and other malfunctions, severely impacting product stability and user experience.

[0004] Therefore, there is a need for a spring-loaded needle contact assembly that can effectively solve the problem of liquid intrusion and improve its reliability and service life. Utility Model Content

[0005] This invention aims to overcome at least some of the aforementioned problems in the prior art.

[0006] According to one aspect of the present invention, a spring pin contact assembly for an electronic device is provided, comprising: a base post adapted to be connected to a device housing of the electronic device; a sleeve having a cylindrical portion and a sleeve bottom, the cylindrical portion being open at one end and the sleeve bottom closing the other end of the cylindrical portion, the opening of the sleeve facing downwards and sleeved onto the base post; and a spring member disposed within the sleeve, between the base post and the sleeve.

[0007] According to one or more embodiments of the present invention, the bottom post is a one-piece molded metal part, and the sleeve is a one-piece molded metal part.

[0008] According to one or more embodiments of the present invention, the base column includes a first column segment at the upper part of the base column and a second column segment below the first column segment. The inner diameter of the cylindrical portion of the sleeve corresponds to the outer diameter of the first column segment of the base column, so that the sleeve fits around and surrounds the first column segment and can move relative to the first column segment in the axial direction.

[0009] According to one or more embodiments of the present invention, the radial dimension of the first column segment is larger than that of the second column segment, thereby defining a first shoulder between the first column segment and the second column segment. The sleeve also includes an inwardly rolled edge that is radially rolled inward at the lower end of the cylindrical portion. The inner diameter of the inwardly rolled edge corresponds to the radial dimension of the second column segment, thereby allowing relative movement on the second column segment and engagement with the first shoulder.

[0010] According to one or more embodiments of the present invention, the base column further includes a third column below the second column, the radial dimension of the third column being smaller than the radial dimension of the second column, thereby forming a second shoulder between the second column and the third column, the third column and the second shoulder being adapted to be fixedly connected to the device housing of the electronic device.

[0011] According to one or more embodiments of the present invention, the spring needle contact assembly further includes a protrusion formed at the bottom of the sleeve and protruding upward.

[0012] According to one or more embodiments of the present invention, the upper end of the bottom post forms an inclined surface.

[0013] According to one or more embodiments of the present invention, the spring element is a helical spring element.

[0014] According to one aspect of the present invention, an electronic device is provided, comprising a device housing having a contact hole formed thereon; an electronic component disposed within the device housing; and a spring needle contact assembly mounted in the contact hole, wherein the base post of the spring needle contact assembly is fixedly connected to the device housing, and a portion of the sleeve extends from the contact hole.

[0015] According to one or more embodiments of the present invention, the electronic device is an earphone charging case, the earphone charging case having a receiving portion for receiving earphones, and the spring pin contact assembly being installed in a corresponding contact hole of the receiving portion. Attached Figure Description

[0016] Figure 1A-1B An electronic device according to one or more embodiments of the present invention is shown, wherein... Figure 1A It is a perspective view of an electronic device. Figure 1B This is an exploded view of the electronic device;

[0017] Figure 2A-2C A spring pin contact assembly according to one or more embodiments of the present invention is shown, wherein... Figure 2A This is a perspective view of the spring pin contact assembly. Figure 2B This is a side view of the spring pin contact assembly. Figure 2C This is a cross-sectional view of the spring pin contact assembly;

[0018] Figure 3A This is a cross-sectional view of an electronic device according to one or more embodiments of the present invention. Figure 3B yes Figure 3A The magnified view at point 3B within the dashed box. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The same or similar reference numerals in the figures denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. In the description of this invention, it should be understood that the terms “center,” “longitudinal,” “lateral,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In this document, the term "axis" refers to the axis or central axis x of the spring pin contact assembly of an electronic device. The term "axial" or "axial direction" refers to the direction along the axis of the spring pin contact assembly; the term "circumferential" refers to the direction about the axis x; the term "radial" or "radial direction" refers to the direction generally perpendicular to the axis, pointing towards or away from the axis; the term "radial in" or "radial inner" refers to a component, part, position, or direction relatively close to the axis; and the term "radial outer" or "radial outer" refers to a component, part, position, or direction relatively far from the axis.

[0022] This utility model provides a spring pin contact assembly for an electronic device, comprising: a base post adapted to be connected to a device housing of the electronic device; a sleeve having a cylindrical portion and a sleeve bottom, the cylindrical portion being open at one end and the sleeve bottom closing the other end of the cylindrical portion, with the opening of the sleeve facing downwards and sleeved on the base post; and a spring member disposed within the sleeve, between the base post and the sleeve.

[0023] In use, the spring pin contact assembly of electronic devices is typically exposed, making it susceptible to external liquids (such as sweat, moisture, rain, or other liquid impurities) or dust. The spring pin contact assembly of this invention has a sleeve fitted onto or inverted onto a base post, with its opening facing downwards. The entire spring pin contact assembly has no upward-facing openings or gaps; specifically, there are no upward-facing gaps between the sleeve and the base post. Therefore, external liquids (such as sweat, moisture, rain, or other liquid impurities) or dust cannot easily enter the interior of the spring pin contact assembly through such gaps. This prevents metal corrosion and plunger jamming inside the spring pin contact assembly, thereby preventing malfunctions such as reduced conductivity, poor contact, abnormal charging, and data interruption, improving product stability and user experience.

[0024] Figure 1A-1B An electronic device 100 according to one or more embodiments of the present invention is shown, wherein... Figure 1A This is a perspective view of electronic device 100. Figure 1B This is an exploded view of electronic device 100. In the embodiment shown, electronic device 100 is an earphone charging case. For the sake of brevity, Figure 1A-1B Only the base of the charging case is shown, while the lid is omitted. In one or more embodiments of the present invention, the electronic device 100 is not limited to an earphone charging case, but may be a charging device or charging dock for other electronic devices (such as electric toothbrushes or smartwatches). In another one or more embodiments of the present invention, the electronic device 100 may be any electronic device having a spring-loaded pin contact assembly.

[0025] Electronic device 100 includes a device housing 102 and a circuit board and / or electronic components (not shown) disposed within the device housing 102. In the embodiment shown, the device housing 102 of electronic device 100 includes an outer shell 110 and an inner shell 120. The outer shell 110 and the inner shell 120 are fitted or assembled together to form device housing 102. Device housing 102 also forms two earphone receiving portions 122a and 122b, each earphone receiving portion 122a and 122b having a shape corresponding to an earphone for receiving one earphone respectively. Electronic device 100 also includes a spring pin contact assembly 140 disposed on device housing 102. In the embodiment shown, electronic device 100 includes a pair of spring pin contact assemblies 140 disposed in each earphone receiving portion 122a and 122b. Specifically, the earphone receiving portions 122a and 122b of device housing 102 form contact holes 124. The spring pin contact assembly 140 is installed in the corresponding contact hole 124 of the earphone receiving portions 122a and 122b, with a portion of it protruding from the contact hole 124. When an earphone is received in the earphone receiving portions 122a and 122b of the electronic device 100, the spring pin contact assembly 140 contacts and connects with the corresponding electrical contacts on the earphone, and charges the earphone through the electrical connection between the spring pin contact assembly 140 and the corresponding electrical contacts on the earphone.

[0026] In one or more embodiments of the present invention, the housing 102 of the electronic device 100 may have any suitable structure, and is not limited to... Figure 1A-1B The housing structure shown. For example, the housing of an electronic device may not be limited to... Figure 1A-1B The structure shown is assembled from an outer shell 110 and an inner shell 120, but can be composed of a single shell component or multiple shell components. In one or more other embodiments according to the present invention, the spring pin contact assembly is not limited to being arranged in the receiving portions 122a, 122b of the shell 102, but can be arranged in any suitable seat or receiving portion of the device housing suitable for receiving the corresponding electronic device. The spring pin contact assembly is configured to contact the electrical contacts of the corresponding electronic device, thereby providing a reliable electrical connection between the electronic device 100 and the corresponding electronic device for charging, signal testing, data transmission, etc.

[0027] Figure 2A-2C A spring pin contact assembly 140 according to one or more embodiments of the present invention is shown, wherein... Figure 2A This is a perspective view of the spring pin contact assembly 140. Figure 2B This is a side view of the spring pin contact assembly 140. Figure 2CThis is a cross-sectional view of the spring needle contact assembly 140. The spring needle contact assembly 140 has an axis x and includes a base post 142, a sleeve 150, and a spring member 160 disposed between the base post 142 and the sleeve 150.

[0028] The base post 142 is a one-piece metal part, comprising a first post segment 148, a second post segment 146, and a third post segment 144 in the axial direction. The first post segment 148 is located at the upper part and includes an inclined surface 148a at its upper end. The second post segment 146 is located in the middle and has a diameter smaller than or larger than the first post segment 148, thereby forming a first shoulder 146a between the first post segment 148 and the second post segment 146. The third post segment 144 is located at the lower part and is adapted to be fixedly connected to the device housing of the electronic device 100. The diameter of the third post segment 144 is smaller than that of the second post segment 146, thereby forming a second shoulder 144a between the third post segment 144 and the second post segment 146.

[0029] The sleeve 150 is a one-piece molded metal part, including a cylindrical portion 152, a sleeve bottom 154, and a protruding portion 156. The lower end of the cylindrical portion 152 is open, and the upper end is closed by the sleeve bottom 154. The protruding portion 156 is formed on the top of the sleeve bottom 154 and protrudes upward from the sleeve bottom 154. The sleeve 150 also has an inwardly rolled edge 152a, which is radially rolled inward from the lower end of the cylindrical portion 152.

[0030] The sleeve 150 is configured to fit over the base post 142 from its upper end. The inner diameter of the cylindrical portion 152 of the sleeve 150 corresponds to the outer diameter of the first segment 148 of the base post 142, thereby surrounding the first segment 148 and being movable relative to it in the axial direction. Furthermore, the inner diameter of the inwardly rolled edge 152a of the cylindrical portion 152 of the sleeve 150 corresponds to the second segment 146 of the base post 142, allowing relative movement on the second segment 146 and engagement with the first shoulder 146a of the base post 142. This engagement of the inwardly rolled edge 152a with the first shoulder 146a limits the upward axial movement of the inwardly rolled edge 152a, thereby limiting the upward axial movement of the sleeve 150 relative to the base post 142. The statement that the inner diameter of the cylindrical portion 152 or the inwardly rolled edge 152a corresponds to the outer diameter of the corresponding column segment means that the inner diameter of the cylindrical portion 152 or the inwardly rolled edge 152a is approximately equal to or slightly larger than the outer diameter of the corresponding column segment.

[0031] A spring 160 is disposed within a sleeve 150, with one axial end abutting against the sleeve bottom 154 of the sleeve 150 and the other axial end abutting against the upper end of the base post 142. The elastic force of the spring 160 can bias or push the sleeve 150 upward relative to the base post 142. In the natural position of the spring pin contact assembly 140, the spring 160 biases the sleeve 150 upward relative to the base post 142, such that the inwardly rolled edge 152a of the cylindrical portion 152 of the sleeve 150 engages with the first shoulder 146a of the base post 142.

[0032] In the embodiment shown, the upper end of the base post 140 has an inclined surface 148a. That is, the inclined surface 148a is not perpendicular to the axis x of the spring pin contact assembly 140, but deviates from the axis x by an angle. In one or more embodiments, the deviation angle of the inclined surface 148 is approximately 10 degrees, 8-12 degrees, 5-15 degrees, or 5-20 degrees. Due to the presence of the inclined surface 148, the force exerted by the spring member 160 on the base post 140 has both axial and radial components. The radial component of this force presses the base post 140 against the sleeve 150, thereby ensuring a reliable electrical connection between the two.

[0033] As shown in the figure, the sleeve 150 is fitted onto or buckled onto the base post 140, with its bottom 154 facing upwards and the opening of the cylindrical portion 152 facing downwards. There is no upward-facing gap between the sleeve 150 and the base post 140, thus the spring needle contact assembly 140 of this invention is not easily affected by external liquids or dust. The inner diameter of the inwardly rolled edge 152a of the cylindrical portion 152 of the sleeve 150 corresponds to the second column segment 146 of the base post 142, allowing it to move relative to the second column segment 146 of the base post 142 and preventing external liquids or dust from entering the interior of the spring needle contact assembly 140. Furthermore, in the natural position of the spring needle contact assembly 140, under the spring force of the spring member 160, the inwardly rolled edge 152a of the cylindrical portion 152 of the sleeve 150 presses against the first shoulder 146 of the base post 140. This further seals the gap between the sleeve 150 and the base post 142, preventing external liquids or dust from entering the spring needle contact assembly 140.

[0034] Figure 2A-2CA spring pin contact assembly 140 according to one or more embodiments of the present invention is shown; however, the present invention is not limited thereto, and the spring pin contact assembly of the present invention may have different structures or configurations. In one or more other embodiments of the present invention, the base post of the spring pin contact assembly may have other suitable structures, not limited to the three-section structure shown, as long as its lower section is adapted to connect to the device housing of the electronic device, and its upper section is adapted to connect to the sleeve. In one or more still embodiments of the present invention, the sleeve may not have a protrusion at its upper end. In one or more still embodiments of the present invention, the upper end of the base post 152 of the spring pin contact assembly may not have an inclined surface.

[0035] Figure 3A This is a cross-sectional view of an electronic device 100 according to one or more embodiments of the present invention. Figure 3B yes Figure 3A An enlarged view of the area within the dashed box 3B. As shown, the device housing 102 (earphone receiving portion 122a) of the electronic device 100 has a contact hole 124 for receiving the spring pin contact assembly 140. The inner diameter of the contact hole 124 can be equal to or slightly larger than the outer diameter of the spring pin contact assembly 140, thereby allowing relative axial movement of the sleeve 150 of the spring pin contact assembly 140 relative to the base post 142. A mounting hole 124a is formed at the bottom of the contact hole 124 for engaging with the first post segment 144 and the first shoulder 144a of the base post 142 of the spring pin contact assembly 140, thereby securing the spring pin contact assembly 140 in place. Furthermore, the base post 142 of the spring pin contact assembly 140, such as the third post segment 144, can be electrically connected to a circuit board, electronic device, or battery (not shown) within the device housing 102 of the electronic device 100.

[0036] A portion of the upper part of the spring-loaded contact assembly 140 protrudes from the contact hole 124. When the device housing 102 (earphone receiving portion 122a) of the electronic device 100 receives an earphone or corresponding electronic device, the charging contacts of the earphone or corresponding electronic device engage with the spring-loaded contact assembly 140 and at least partially press the spring-loaded contact assembly 140 back into the contact hole 124. At this time, the spring 160 of the spring-loaded contact assembly 140 is compressed, and the elastic restoring force of the spring 160 presses the sleeve 150 against the charging contacts of the earphone or corresponding electronic device, thereby achieving a reliable electrical connection between the two. Thus, a circuit board, electronic components, or a battery (not shown) within the device housing 102 of the electronic device 100 are electrically connected to the earphone or corresponding electronic device via the spring-loaded contact assembly 140 and the charging contacts of the earphone or corresponding electronic device for, for example, charging.

[0037] During use, the spring pin contact assembly 140 of the electronic device 100 is typically exposed to the outside, making it susceptible to external liquids (such as sweat, moisture, rain, or other liquid impurities) or dust. As shown in the figure, the sleeve 150 of the spring pin contact assembly 140 of this invention is fitted onto or inverted onto the base post 140, with the bottom 154 of the sleeve facing upwards and the opening of the cylindrical portion 152 facing downwards. The entire spring pin contact assembly 140 has no upward-facing gaps; specifically, there is no upward-facing gap between the sleeve 150 and the base post 140. Therefore, external liquids (such as sweat, moisture, rain, or other liquid impurities) or dust cannot easily enter the interior of the spring pin contact assembly 140 through this gap. This prevents metal corrosion and plunger jamming inside the spring pin contact assembly 140, and consequently prevents malfunctions such as reduced conductivity, poor contact, abnormal charging, and data interruption, thus improving product stability and user experience.

[0038] This utility model can be implemented in the following ways:

[0039] Project 1: A spring pin contact assembly for an electronic device, comprising: a base post adapted to be connected to a device housing of the electronic device; a sleeve including a cylindrical portion and a sleeve bottom, the cylindrical portion being open at one end and the sleeve bottom closing the other end of the cylindrical portion, the opening of the sleeve facing downwards and fitted onto the base post; and a spring member disposed within the sleeve, between the base post and the sleeve.

[0040] Project 2: The spring pin contact assembly for electronic devices according to Project 1, wherein the base post is a one-piece molded metal part and the sleeve is a one-piece molded metal part.

[0041] Item 3: A spring pin contact assembly for an electronic device according to any one of Items 1-2, wherein the base post includes a first column segment at the upper part of the base post and a second column segment below the first column segment, the inner diameter of the cylindrical portion of the sleeve corresponds to the outer diameter of the first column segment of the base post, such that the sleeve fits around and surrounds the first column segment and is movable relative to the first column segment in the axial direction.

[0042] Item 4: A spring pin contact assembly for an electronic device according to any one of Items 1-3, wherein the radial dimension of the first column segment is larger than that of the second column segment, thereby defining a first shoulder between the first column segment and the second column segment, the sleeve further comprising an inwardly rolled edge radially inwardly rolled at the lower end of the cylindrical portion, the inner diameter of the inwardly rolled edge corresponding to the radial dimension of the second column segment, thereby being movable relative to the second column segment and capable of engaging with the first shoulder.

[0043] Item 5: A spring pin contact assembly for an electronic device according to any one of Items 1-4, wherein the base post further includes a third post below the second post, the radial dimension of the third post being smaller than the radial dimension of the second post, thereby forming a second shoulder between the second post and the third post, the third post and the second shoulder being adapted to be fixedly connected to the device housing of the electronic device.

[0044] Item 6: A spring pin contact assembly for an electronic device according to any one of Items 1-5, wherein the spring pin contact assembly further includes a protrusion formed at the bottom of the sleeve and protruding upward therefrom.

[0045] Item 7: A spring pin contact assembly for an electronic device according to any one of Items 1-6, wherein the upper end of the base post forms an inclined surface.

[0046] Item 8: A spring pin contact assembly for an electronic device according to any one of Items 1-7, wherein the spring is a helical spring.

[0047] Item 9: An electronic device comprising: a device housing having a contact hole formed thereon; electronic components disposed within the device housing; a spring pin contact assembly for the electronic device according to any one of Items 1-8, the spring pin contact assembly being mounted in the contact hole, the base post of the spring pin contact assembly being fixedly connected to the device housing, and a portion of the sleeve extending from the contact hole.

[0048] Item 10: The electronic device according to Item 9, wherein the electronic device is an earphone charging case, the earphone charging case having a receiving portion for receiving earphones, and the spring pin contact assembly being mounted in a corresponding contact hole in the receiving portion.

[0049] The above description is merely an exemplary embodiment used to illustrate the principle of this utility model and is not intended to limit the scope of protection of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also within the scope of protection of this utility model.

Claims

1. A spring pin contact assembly for an electronic device, characterized in that... include: A base post adapted to be connected to the device housing of the electronic device; A sleeve, the sleeve having a cylindrical portion and a sleeve bottom, the cylindrical portion being open at one end, the sleeve bottom closing the other end of the cylindrical portion, and the opening of the sleeve facing downwards, is fitted onto the bottom post; and A spring element, which is arranged inside the sleeve between the base post and the sleeve.

2. The spring pin contact assembly for an electronic device according to claim 1, characterized in that, The base post is a one-piece molded metal part, and the sleeve is a one-piece molded metal part.

3. The spring pin contact assembly for an electronic device according to claim 1, characterized in that, The base column includes a first column segment at the upper part of the base column and a second column segment below the first column segment. The inner diameter of the cylindrical portion of the sleeve corresponds to the outer diameter of the first column segment of the base column, so that the sleeve fits onto and surrounds the first column segment and can move relative to the first column segment in the axial direction.

4. The spring pin contact assembly for an electronic device according to claim 3, characterized in that, The radial dimension of the first column segment is larger than that of the second column segment, thereby defining a first shoulder between the first column segment and the second column segment. The sleeve also includes an inwardly rolled edge that is radially rolled inward at the lower end of the cylindrical portion. The inner diameter of the inwardly rolled edge corresponds to the radial dimension of the second column segment, thereby allowing relative movement on the second column segment and engagement with the first shoulder.

5. The spring pin contact assembly for an electronic device according to claim 3, characterized in that, The base post also includes a third column below the second column, the radial dimension of the third column being smaller than that of the second column, thereby forming a second shoulder between the second column and the third column, the third column and the second shoulder being adapted to be fixedly connected to the device housing of the electronic device.

6. The spring pin contact assembly for an electronic device according to any one of claims 1-5, characterized in that, The spring needle contact assembly also includes a protrusion formed at the bottom of the sleeve and protruding upward.

7. The spring pin contact assembly for an electronic device according to any one of claims 1-5, characterized in that, The upper end of the bottom column forms an inclined surface.

8. The spring pin contact assembly for an electronic device according to any one of claims 1-5, characterized in that, The spring component is a helical spring component.

9. An electronic device, characterized in that... include A device housing having contact holes formed thereon; Electronic components arranged within the housing of the device; A spring pin contact assembly for an electronic device according to any one of claims 1-8, wherein the spring pin contact assembly is mounted in the contact hole. The base post of the spring needle contact assembly is fixedly connected to the device housing, and a portion of the sleeve extends from the contact hole.

10. The electronic device according to claim 9, characterized in that... The electronic device is an earphone charging case. The earphone charging case has a receiving portion for receiving the earphones, and the spring pin contact assembly is installed in the corresponding contact hole of the receiving portion.

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