Protective door device for socket and socket
By designing a protective door device for rotating brackets, sliders and limiting components between the sockets of the DC socket and the electrode contacts, the problem that the DC socket protective door design is difficult to meet its unique requirements is solved, and effective protection of the electrode contacts and safe use of the socket is achieved.
Patent Information
- Application Number
- CN202421939839.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The protective door design of DC sockets is difficult to meet their unique jack layout and internal structure requirements, resulting in poor protection performance of existing protective door structures.
A protective door device is designed, including a rotary bracket, a slider and a limiting assembly. Through the rotation of the rotary bracket and the action of the limiting assembly, the slider is blocked or exposed between the jack and the electrode contact piece to achieve protection against the electrode contact piece.
It effectively improves the safety of the socket during use, prevents foreign objects from contacting the electrode contacts, and ensures normal connection when the plug is inserted.
Smart Images
Figure CN222953406U_ABST
Abstract
Description
Technical Field
[0001] Example embodiments of the present disclosure generally relate to the field of electrical equipment, and in particular, to a protective door device for a socket and the socket. Background Art
[0002] A DC socket is an interface used to connect a DC power source to an electrical device, usually for power supply and charging purposes. Unlike an AC socket, a DC socket directly provides a constant current and is widely used in power tools, electric vehicle charging, LED lighting, and other low-voltage electrical equipment.
[0003] However, the arrangement of the jack and internal structure of a DC socket is quite different from that of an AC socket, which puts higher requirements on the design of the protective door of the DC socket. Utility Model Content
[0004] In a first aspect of the present disclosure, a protective door device for a socket is provided. The protective door device comprises: a housing; a rotating bracket arranged in the housing and comprising two ends respectively corresponding to two sockets of the socket, the rotating bracket being adapted to rotate from a release position to one of two locking positions along a rotation direction during the insertion of an object into a single-sided socket of the two sockets; a pair of protective door assemblies respectively arranged at the two ends of the rotating bracket, each protective door assembly of the pair of protective door assemblies comprising: a slider arranged corresponding to the single-sided socket and slidably coupled to the rotating bracket, the slider being adapted to slide from a protection position for shielding the electrode contact of the socket to a evasion position for exposing the electrode contact under the push of a plug inserted into the two sockets during the period when the rotating bracket is in the release position; and a pair of limiting assemblies coupled to the housing and respectively arranged near a pair of sliders of the pair of protective door assemblies to limit the sliding of the slider to the evasion position during the period when the rotating bracket is in the locked position.
[0005] In some embodiments, the limiting assembly includes: a first limiting rib, arranged on a first side of the slider along the rotation direction and coupled to the shell, so as to contact the slider when the rotating bracket is in a first locking position of two locking positions to limit the slider from sliding toward the avoidance position; and a second limiting rib, arranged on a second side of the slider opposite to the first side along the rotation direction and coupled to the shell, so as to contact the slider when the rotating bracket is in a second locking position of the two locking positions to limit the slider from sliding toward the avoidance position.
[0006] In some embodiments, the rotating bracket further includes: a pair of accommodating grooves, respectively formed at two ends of the rotating bracket to respectively accommodate a pair of sliders of a pair of protective door assemblies and allow the sliders to slide in the accommodating grooves along the extension direction of the accommodating grooves.
[0007] In some embodiments, there is a predetermined non-zero angle between the extension directions of the pair of receiving grooves.
[0008] In some embodiments, the slider includes: a push slope obliquely formed at one end of the slider facing the insertion hole, so as to contact the plug during the insertion of the plug into the insertion hole to make the slider slide along the receiving groove.
[0009] In some embodiments, the protective door assembly further includes: an elastic member, which is arranged on a side of the sliding block away from the push inclined surface and is suitable for providing an elastic force for the sliding block to return to the protective position.
[0010] In some embodiments, one end of the elastic member is coupled to the slider, and the other end is coupled to the housing, so as to be compressed at least during the period when the rotating bracket rotates along the rotating direction.
[0011] In some embodiments, the housing includes a pair of swing protrusions, and the rotating bracket includes a fixing slot coupled to the pair of swing protrusions so that the rotating bracket rotates around an axis connecting the pair of swing protrusions.
[0012] A rotating bracket is arranged between the socket and the electrode contact of the socket, and sliders are arranged at the two ends of the rotating bracket. Thus, the slider can block between the socket and the electrode contact. If an object is inserted into one side of a pair of sockets of the socket, the insertion of the object causes an unbalanced force on the two ends of the rotating bracket, and the rotating bracket rotates from the release position to the lock position. Then the limiting rib contacts the slider and limits the slider from sliding to the avoidance position. In this way, the slider can block between the socket and the electrode contact, thereby protecting the electrode contact and improving the safety of the socket during use.
[0013] In a second aspect of the present disclosure, a socket is provided. The socket comprises: a housing; a panel coupled to the housing and comprising at least one pair of jacks; at least one pair of electrode contacts arranged in the housing and aligned with the at least one pair of jacks respectively; and a protective door device according to the first aspect of the present disclosure, arranged between the panel and the at least one pair of electrode contacts.
[0014] In some embodiments, length directions of cross sections of a pair of holes are perpendicular to each other.
[0015] It should be understood that the contents described in this content section are not intended to limit the key features or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:
[0017] Figure 1shows a schematic diagram of the overall structure of a socket according to some embodiments of the present disclosure;
[0018] Figure 2 A schematic diagram of the internal structure of a socket according to some embodiments of the present disclosure is shown;
[0019] Figure 3 A schematic diagram of the overall structure of a protective door device according to some embodiments of the present disclosure is shown;
[0020] Figure 4 shows a cross-sectional view of a socket according to some embodiments of the present disclosure; and
[0021] Figure 5 A schematic diagram of the overall structure of a rotating bracket according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION
[0022] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0023] It should be noted that the titles of any sections / subsections provided herein are not restrictive. Various embodiments are described throughout this article, and any type of embodiment may be included under any section / subsection. In addition, the embodiments described in any section / subsection may be combined in any manner with any other embodiments described in the same section / subsection and / or different sections / subsections.
[0024] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". Other explicit and implicit definitions may be included below. The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may be included below.
[0025] In the description of the embodiments of the present disclosure, the term "protection position" refers to the slider being arranged between the plug hole of the socket and the electrode contact piece, and at least partially shielding the electrode contact piece to prevent foreign matter (i.e., an object) from being inserted into the plug hole and contacting the electrode contact piece. The term "avoidance position" refers to the slider sliding relative to the rotating bracket from the protection position and exposing the electrode contact piece, so as to facilitate the plug piece of the plug to contact and electrically connect with the electrode contact piece during the coupling of the plug to the socket.
[0026] In the description of the embodiments of the present disclosure, the term "locked position" refers to the position where the rotating bracket is pushed by the object to deflect to the position where the sliding path of the limit assembly and the slider at least partially overlap during the insertion of the single-sided jack of the socket. In the locked position, due to the interaction between the limit assembly and the slider, the slider is kept in the protection position and cannot slide to the avoidance position. The term "release position" refers to the position where the rotating bracket rotates to the position where the sliding track of the limit assembly and the slider are separated by a predetermined distance, so that the slider can contact the plug of the plug during the coupling of the plug to the socket, and slide to the avoidance position under the push of the plug and expose the electrode contact.
[0027] As briefly mentioned above, the arrangement of the sockets in a DC socket and the internal structure of the socket are quite different from those of an AC socket. For example, the arrangement directions of the positive and negative sockets of a DC socket are perpendicular to each other (that is, the length direction of the cross section of the positive socket perpendicular to the axis is perpendicular to the length direction of the cross section of the negative socket perpendicular to the axis), so the protection door structure of a traditional AC socket is difficult to apply to a DC socket. In addition, some existing protection door structures of DC sockets also have disadvantages such as poor protection performance.
[0028] In order to solve or at least partially solve the above-mentioned problems or other potential problems existing in the conventional technology, the embodiments of the present disclosure provide a protective door device for a socket and a socket. A rotating bracket is arranged between the socket jack and the electrode contact, and sliders are arranged at both ends of the rotating bracket. Thus, the slider can block between the socket jack and the electrode contact. If an object is inserted into a single-side socket of a pair of sockets of the socket, the insertion of the object causes an unbalanced force on the two ends of the rotating bracket, thereby rotating the rotating bracket from the release position to the lock position. Then, the limiting rib contacts the slider and limits the slider from sliding to the avoidance position. In this way, the slider can block between the socket jack and the electrode contact, thereby protecting the electrode contact and improving the safety of the socket during use.
[0029] When the DC is inserted into the socket, the positive and negative plugs of the plug are respectively inserted into the positive and negative sockets of the socket, and the positive and negative plugs are respectively pressed on the two sliders at both ends of the rotating bracket. At this time, the rotating bracket is kept in the release position due to the force balance, and the slider pushed by the positive (or negative) plug slides to the avoidance position to expose the electrode contact sheet. In this way, the DC plug is normally connected to the DC socket.
[0030] Figure 1 shows a schematic diagram of the overall structure of a socket according to some embodiments of the present disclosure, Figure 2 FIG. 2 shows a schematic diagram of the internal structure of a socket according to some embodiments of the present disclosure. Figure 1 and Figure 2 As shown, the socket 3 generally includes a housing 1, a panel 2 coupled to the housing 1, at least one pair of electrode contacts arranged in the housing 1, and a protective door device arranged between the panel 2 and the at least one pair of electrode contacts. The pair of jacks 21 of the socket 3 are suitable for inserting a pair of plugs 31 of a plug, respectively. In this case, the protective door device can avoid the pair of plugs 31 so that the plugs 31 contact the electrode contacts of the socket 3. If an object is inserted into the single-sided jack 21 of the socket 3, the protective door device will take effect, preventing the object from contacting the electrode contacts, thereby ensuring the safety of electricity use. The following will specifically describe how the protective door device prevents the object from contacting the electrode contacts.
[0031] In some embodiments, the arrangement directions of the pair of sockets 21 are mutually perpendicular. Specifically, the length direction of the cross section of the positive socket 21 perpendicular to the axis and the length direction of the cross section of the negative socket 21 perpendicular to the axis are mutually perpendicular. In this way, the positive socket 21 of the socket 3 and the positive plug 31 of the plug, and the negative socket 21 and the negative plug 31 can be accurately coupled, thereby ensuring the safety of electricity use.
[0032] Figure 3 shows a schematic diagram of the overall structure of a protective door device according to some embodiments of the present disclosure, Figure 4 1 shows a cross-sectional view of a socket according to some embodiments of the present disclosure. Figure 3 and Figure 4 As shown, the protective door device includes a shell 4 coupled to the socket 3 housing 1, a rotating bracket 5 arranged in the socket 3, a pair of protective door assemblies 6 respectively arranged at the two ends 53 of the rotating bracket 5, and a pair of limit assemblies respectively arranged near the pair of protective door assemblies 6.
[0033] Figure 5 The overall structure diagram of the rotating bracket according to some embodiments of the present disclosure is shown in FIG. Figure 5As shown, the rotating bracket 5 is arranged in the housing 4 and the two ends 53 of the rotating bracket 5 are respectively arranged corresponding to a pair of jacks 21 of the socket 3. For example, the two ends 53 of the rotating bracket 5 can be respectively aligned with the corresponding single-sided jacks at least partially. The rotating bracket 5 can rotate from the release position to any one of the two locking positions along the rotation direction. For example, when only one of the pair of jacks 21 has an object or a foreign object inserted, the rotating bracket 5 can be rotated from the release position to the first locking position around the positive direction of the rotation direction (for example, clockwise). Correspondingly, when only another jack has an object or a foreign object inserted, the rotating bracket 5 can also be rotated from the release position to the second locking position relative to the first locking position around the reverse direction of the rotation direction (for example, counterclockwise), thereby effectively preventing the object from contacting the internal circuit when the single-sided jack 21 is inserted.
[0034] In some embodiments, the housing 4 includes a pair of swing protrusions 41, which are arranged on the side of the rotating bracket 5 away from the panel 2 and extend toward the rotating bracket 5. A fixing groove 52 is provided on the rotating bracket 5, and the fixing groove 52 is arranged on the side of the rotating bracket 5 away from the panel 2. The pair of swing protrusions 41 are adapted to be at least partially accommodated in the fixing groove 52, and the end points of the swing protrusions 41 abut against the bottom wall of the fixing groove 52. In this way, the rotating bracket 5 can rotate between the release position and the locking position around the arrangement direction of the pair of swing protrusions 41 (that is, the axis of the pair of swing protrusions 41) with the end points of the pair of swing protrusions 41 as fulcrums.
[0035] A pair of sliders 61 are slidably coupled to the two ends 53 of the rotating bracket 5, and are arranged between the plug hole 21 and the electrode contact sheet, so that the sliders 61 can cover the electrode contact sheet. When the rotating bracket 5 is in the release position, the sliders 61 can be pushed by the plug sheet 31 from the protection position of covering the electrode contact sheet to the avoidance position of exposing the electrode contact sheet, so as to facilitate the connection between the plug sheet 31 and the electrode contact sheet.
[0036] In some embodiments, the rotating bracket 5 further includes a pair of accommodating grooves 51, which are respectively arranged at two ends 53 of the rotating bracket 5 and are suitable for accommodating the sliding block 61 to slide in the accommodating groove 51 along the extension direction of the accommodating groove 51. In some embodiments, the extension directions of the pair of accommodating grooves 51 can have a predetermined angle, for example, the extension directions of the pair of accommodating grooves 51 can be perpendicular to each other. That is, the pair of sliding blocks 61 can slide in their respective accommodating grooves 51 in directions perpendicular to each other relative to the rotating bracket 5. In some other embodiments, the pair of accommodating grooves 51 of the rotating bracket 5 can also extend in the same or opposite directions.
[0037] The limiting assembly is adapted to contact the corresponding slider 61 during the period when the rotating bracket 5 rotates to the locking position, thereby limiting the sliding movement of the slider 61 to the avoidance position. In some embodiments, the limiting assembly includes a first limiting rib 7 and a second limiting rib 8 arranged at both ends of the slider 61 along the rotation direction. Specifically, the first limiting rib 7 is arranged on the first side of the slider 61 along the rotation direction (e.g., the forward rotation direction). When the rotating bracket 5 rotates to the locking position along the forward rotation direction due to the push of the object inserted in the single-sided plug hole 21, the first limiting rib 7 and the sliding path of the slider 61 sliding from the protection position to the avoidance position at least partially overlap, so that the first limiting rib 7 can limit the sliding movement of the slider 61 to the avoidance position. Similarly, the second limiting rib 8 is arranged on the second side of the slider 61 along the rotation direction (e.g., the reverse direction). When the rotating bracket 5 rotates to the locking position along the reverse direction under the push of the object inserted in the single-sided plug hole 21, the second limiting rib 8 and the sliding path of the slider 61 sliding from the protection position to the avoidance position at least partially overlap, and limit the sliding movement of the slider 61 to the avoidance position. In this way, after the slider 61 is stopped by the first limiting rib 7 (or the second limiting rib 8), the slider 61 can cover the side of the electrode contact facing the socket 21 and prevent the object from contacting the electrode contact, thereby ensuring the safety of electricity use. If the plug is coupled to the socket 3, the two sockets 21 of the socket 3 are inserted by the plug 31 at the same time. At this time, the rotating bracket 5 is in a state of force balance and remains in the release seat. The slider 61 can slide to the avoidance position under the push of the plug 31. As a result, the slider 61 exposes the electrode contact, which facilitates the coupling of the plug 31 with the electrode contact.
[0038] In some embodiments, the slider 61 includes a push-in bevel 611, which is formed obliquely at one end of the slider 61 facing the socket 21. When the plug 31 of the plug is inserted into the socket 21, the push-in bevel 611 contacts the plug 31, and the thrust for pushing the slider 61 to slide is decomposed from the pressure applied by the plug 31 to the push-in bevel 611. Thus, the plug 31 can slide to the avoidance position.
[0039] In some embodiments, the protection door assembly 6 further includes an elastic member 62, which is arranged at one end of the slider 61 away from the push ramp 611, and the elastic member 62 is adapted to be compressed during the sliding of the slider 61 to the avoidance position, so as to provide the slider 61 with an elastic force to restore to the protection position. When the plug is uncoupled from the socket 3 and the plug 31 is withdrawn from the socket 21, the elastic member 62 can push the slider 61 to restore to the protection position and re-shield the electrode contact. In some embodiments, the elastic member 62 can be a spring or any appropriate elastic material.
[0040] In some embodiments, one end of the elastic member 62 is coupled to the slider 61, and the other end is coupled to the housing 4, so that when the rotating bracket 5 rotates from the release position to the locking position, the elastic member 62 can be compressed, and then when the two ends 53 of the rotating bracket 5 restore the force balance, the rotating bracket 5 can be restored to the release position under the action of the elastic member 62.
[0041] The above descriptions of various implementations of the present disclosure are exemplary, non-exhaustive, and not limited to the disclosed implementations. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described implementations. The selection of terms used herein is intended to best explain the principles of the implementations, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the various implementations disclosed herein.
Claims
1. A protective door device for a socket, characterized in that: include: Housing (4); A rotating bracket (5) is arranged in the housing (4) and comprises two end portions (53) respectively corresponding to the two insertion holes (21) of the socket (3), wherein the rotating bracket (5) is adapted to rotate from a release position to one of two locking positions along a rotation direction during insertion of an object into a single-side insertion hole (21) of the two insertion holes (21); A pair of protection door assemblies (6), respectively arranged at the two ends (53) of the rotating bracket (5), each protection door assembly (6) of the pair of protection door assemblies (6) comprising: a slider (61), arranged corresponding to the single-sided plug hole (21) and slidably coupled to the rotating bracket (5), the slider (61) being adapted to slide from a protection position shielding the electrode contacts of the socket (3) to a avoidance position exposing the electrode contacts when the rotating bracket (5) is in the release position and under the push of a plug inserted into the two plug holes (21); and A pair of limit assemblies are coupled to the housing (4) and are respectively arranged close to a pair of sliders (61) of the pair of protective door assemblies (6) to limit the sliding movement of the sliders (61) toward the avoidance position when the rotating bracket (5) is in the locking position.
2. The protective door device according to claim 1, characterized in that: The limiting component comprises: a first limiting rib (7), arranged on a first side of the slider (61) along the rotation direction and coupled to the housing (4), so as to contact the slider (61) when the rotating bracket (5) is located at a first locking position of two locking positions to limit the slider (61) from sliding toward the avoidance position; and A second limiting rib (8) is arranged on a second side of the slider (61) opposite to the first side along the rotation direction and is coupled to the housing (4) so as to contact the slider (61) when the rotating bracket (5) is in the second locking position of the two locking positions to limit the slider (61) from sliding toward the avoidance position.
3. The protective door device according to claim 1, characterized in that: The rotating support (5) further comprises: A pair of accommodating grooves (51) are respectively formed at the two end portions (53) of the rotating bracket (5) to respectively accommodate a pair of sliding blocks (61) of the pair of protective door assemblies (6) and allow the sliding blocks (61) to slide in the accommodating grooves (51) along the extension direction of the accommodating grooves (51).
4. The protective door device according to claim 3, characterized in that: There is a predetermined non-zero angle between the extension directions of the pair of accommodating grooves (51).
5. The protective door device according to claim 3, characterized in that: The slider (61) comprises: A push inclined surface (611) is obliquely formed at one end of the slider (61) facing the insertion hole (21), so as to contact the plug during the insertion of the plug into the insertion hole (21) to enable the slider (61) to slide along the accommodating groove (51).
6. The protective door device according to claim 5, characterized in that: The protective door assembly (6) further comprises: The elastic member (62) is arranged on a side of the sliding block (61) away from the push inclined surface (611), and is suitable for providing the sliding block (61) with an elastic force to restore the sliding block (61) to the protection position.
7. The protective door device according to claim 6, characterized in that: One end of the elastic member (62) is coupled to the slider (61), and the other end is coupled to the housing (4), so as to be compressed at least during the period when the rotating bracket (5) rotates in the rotating direction.
8. The protective door device according to any one of claims 1 to 7, characterized in that: The housing (4) comprises a pair of swing protrusions (41), and The rotating bracket (5) comprises a fixing groove (52), and the fixing groove (52) is coupled to the pair of swing protrusions (41) so that the rotating bracket (5) rotates around an axis connecting the pair of swing protrusions (41).
9. A socket, characterized in that: include: Housing (1); A panel (2), coupled to the housing (1), comprising at least one pair of jacks (21); At least one pair of electrode contacts, arranged in the housing (1) and corresponding to the at least one pair of jacks (21) respectively; as well as The protective door device according to any one of claims 1 to 8 is arranged between the panel (2) and the at least one pair of electrode contacts.
10. The socket according to claim 9, characterized in that The length directions of the cross sections of the pair of insertion holes (21) are perpendicular to each other.