A DC power socket
By incorporating multiple negative contact springs and a grounding structure into the DC power socket, the problem of conductivity failure caused by poor negative contact is solved, achieving stable power supply and convenient installation of the socket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGZHONG JIN SANXIN ELECTRONICS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-29
AI Technical Summary
The negative terminal of the existing DC power socket is a single piece, which leads to a high failure rate in conductivity when there is poor contact, affecting normal power supply.
The design incorporates multiple negative contact springs to ensure conductivity even when at least one spring has poor contact. Combined with the positive and grounding structures, this enhances stability.
It reduces the risk of power outages caused by negative electrode disconnection, ensures long-term stable operation of DC power sockets, and improves conductivity and ease of installation.
Smart Images
Figure CN224304957U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power socket technology, and more specifically, relates to a DC power socket. Background Technology
[0002] A DC socket is a socket designed to be used with a dedicated power supply for computer monitors. It consists of a horizontal socket, a vertical socket, an insulating base, fork-shaped contact springs, and a directional keyway. Two fork-shaped contact springs are positioned in the center of the base and are arranged horizontally and vertically without being connected to each other.
[0003] A DC socket, as described in application number CN202223169238.6, includes an insulating shell with a socket inside. Multiple negative contact springs are circumferentially arranged on the inner wall of the socket. A positive connector is located at the rear end of the insulating shell and engages with it. A PIN pin is provided on the front surface of the positive connector, extending into the socket. Multiple engaging grooves are provided on the outer peripheral wall of the PIN pin, and multiple positive contact springs are engaged within these grooves. The outer surface of each positive contact spring has contact protrusions and multiple contact points, ensuring stable contact and reducing the likelihood of poor contact. This design, through the arrangement of multiple electrode plates, improves the conductivity of the electrode plates and effectively reduces the occurrence of poor contact.
[0004] Based on the search of the aforementioned patents and the findings of existing devices, the negative terminal of the existing DC power socket is designed as an integral structure with only one negative terminal soldering part. If poor contact occurs, the negative electrode will have poor conductivity, resulting in a high conductivity failure rate.
[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a DC power socket with greater practical value. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a DC power socket that solves the problem that, due to the integrated structure of the negative terminal in existing DC power sockets, the negative terminal has only one soldering part. If poor contact occurs, the negative electrode will have poor conductivity, resulting in a high conductivity failure rate.
[0007] The purpose and function of this utility model's DC power socket are achieved through the following specific technical means:
[0008] A DC power socket, comprising:
[0009] An insulating housing 1 has an insertion hole 11 in the middle, a central column 31 in the insertion hole 11, a mounting hole 37 along the axis of the central column 31, a central groove 39 in the mounting hole 37, a pin probe 38 inserted into the central groove 39, and the pin probe 38 has a snap-fit part 381 and a probe electrode 382.
[0010] Positive electrode contact spring 4, which is installed on the outer periphery of the central column 31, and is provided with a positive electrode spring 41 and a positive electrode 42;
[0011] The outer periphery of the central column 31 is provided with a slot 32, the number of slots 32 is the same as the number of positive electrode springs 41, and the positive electrode springs 41 are engaged in the slots 32;
[0012] The insulating housing 1 is provided with a plurality of first limiting grooves 13;
[0013] The negative electrode contact spring 2 is provided with two sets of contact plates 21. Each contact plate 21 is provided with two or more negative electrode spring portions 211. The negative electrode contact spring 2 is also provided with a negative electrode 212. The multiple negative electrode spring portions 211 are distributed around the circumference of the central column 31. The first limiting groove 13 is correspondingly provided with the negative electrode spring portions 211, and the negative electrode spring portions 211 are engaged in the first limiting groove 13.
[0014] Furthermore, it also includes a grounding housing 9, with at least one locking hole 91 on each side of the grounding housing 9, and a grounding electrode 92. The insulating housing 1 is provided with a latching part 14 corresponding to the locking hole 91, and the locking hole 91 can be engaged with the latching part 14.
[0015] Furthermore, the positive electrode 42, the negative electrode 212, and the ground electrode 92 are all vertically arranged.
[0016] Furthermore, at least two positioning posts 15 are provided at the bottom of the insulating housing 1, and the axis of the positioning posts 15 is vertically arranged.
[0017] Furthermore, the positive electrode spring 41 has a bent edge 411 at its end, and the central column 31 has a buckle hole 33. The buckle hole 33 is corresponding to the bent edge 411, and the bent edge 411 can be engaged in the buckle hole 33. The bent edge 411 is bent inward.
[0018] Furthermore, the insulating housing 1 is provided with a boss 12, which is attached to one side of the grounding housing 9.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] This invention features multiple contact plates, ensuring that even if one contact plate has poor contact, another contact plate can still conduct current, thus guaranteeing the long-term stable operation of the DC power socket. This reduces the possibility of the DC power socket failing to supply power due to a broken negative contact and ensures its long-term operation. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram (first-person view) of a DC power socket according to this utility model.
[0022] Figure 2 This is a three-dimensional structural diagram (second perspective) of a DC power socket according to this utility model.
[0023] Figure 3 This is a partial cross-sectional view of a DC power socket according to this utility model.
[0024] Figure 4 This is an exploded structural diagram of a DC power socket according to this utility model.
[0025] Figure 5 This is a cross-sectional view of the insulating shell of a DC power socket according to this utility model.
[0026] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0027] Insulating shell 1, insertion hole 11, boss 12, first limiting groove 13, snap-fit part 14, positioning post 15, negative contact spring 2, contacting plate body 21, negative spring part 211, negative electrode 212, central post 31, slot 32, snap hole 33, mounting hole 37, pin probe 38, snap-fit part 381, probe electrode 382, central groove 39, positive contact spring 4, positive spring 41, bent edge part 411, positive electrode 42, grounding shell 9, snap hole 91, grounding electrode 92. Detailed Implementation
[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0029] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Example:
[0032] As attached Figure 1 To be continued Figure 5 As shown:
[0033] This utility model provides a DC power socket, comprising:
[0034] An insulating housing 1 has an insertion hole 11 in the middle, a central column 31 in the insertion hole 11, a mounting hole 37 along the axis of the central column 31, a central groove 39 in the mounting hole 37, a pin probe 38 inserted into the central groove 39, and the pin probe 38 has a snap-fit part 381 and a probe electrode 382.
[0035] Positive electrode contact spring 4, which is installed on the outer periphery of the central column 31, and is provided with a positive electrode spring 41 and a positive electrode 42;
[0036] The outer periphery of the central column 31 is provided with a slot 32, the number of slots 32 is the same as the number of positive electrode springs 41, and the positive electrode springs 41 are engaged in the slots 32;
[0037] The insulating housing 1 is provided with a plurality of first limiting grooves 13;
[0038] The negative electrode contact spring 2 is provided with two sets of contact plates 21. Each contact plate 21 is provided with two or more negative electrode spring portions 211. The negative electrode contact spring 2 is also provided with a negative electrode 212. The multiple negative electrode spring portions 211 are distributed around the circumference of the central column 31. The first limiting groove 13 is correspondingly provided with the negative electrode spring portions 211, and the negative electrode spring portions 211 are engaged in the first limiting groove 13.
[0039] In this embodiment, by setting multiple contact plates, when one contact plate 21 has poor contact, the other contact plate 21 can still conduct current, so as to ensure that the DC power socket is in a stable working state for a long time, reduce the possibility of the DC power socket failing to supply power normally due to the negative terminal disconnection, and ensure its long-term operation.
[0040] It also includes a grounding housing 9, with at least one locking hole 91 on each side of the grounding housing 9, and a grounding electrode 92. The insulating housing 1 is provided with a latching part 14 corresponding to the locking hole 91, and the locking hole 91 can be engaged with the latching part 14.
[0041] The multiple negative electrode spring sections 211 are circumferentially distributed, which improves the conductivity of the negative electrode and guides the inserted DC power cord connector, evenly distributing the connection position at various points around the circumference.
[0042] The positive electrode 42, negative electrode 212, and ground electrode 92 are all vertically arranged.
[0043] This allows the DC power socket to be used as a plug-in electronic component on a circuit board, facilitating the installation and soldering of the DC power socket.
[0044] The bottom of the insulating housing 1 is provided with at least two positioning posts 15, and the axis of the positioning posts 15 is vertically arranged.
[0045] In practice, mounting holes need to be provided on the corresponding circuit board to allow the positioning pin 15 to be inserted into the mounting holes for positioning. The positioning pin 15 serves to position the DC power socket, making its installation on the circuit board more accurate and convenient.
[0046] The positive electrode spring 41 has a bent edge 411 at its end, and the central column 31 has a buckle hole 33. The buckle hole 33 is corresponding to the bent edge 411, and the bent edge 411 can be engaged in the buckle hole 33. The bent edge 411 is bent inward.
[0047] When the positive electrode spring 41 is installed, the positive electrode spring 41 is inserted into the slot 32 on the outer periphery of the central column 31, and the bent part 411 is locked in the buckle hole 33. The buckle hole 33 plays a limiting role for the bent part 411, preventing it from bending outward under external force, and effectively avoiding the problem that the DC power cord connector is not easy to insert due to the bending of the bent part 411.
[0048] The insulating housing 1 is provided with a boss 12, which is attached to one side of the grounded housing 9.
[0049] The protrusion 12 serves to limit the grounding housing 9. After the grounding housing 9 is locked in the buckle 14, the protrusion 12 fits against one side of the grounding housing 9, so the grounding housing 9 is not easy to shake.
[0050] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A DC power socket, characterized in that, include: An insulating housing (1) is provided with an insertion hole (11) in the middle of the insulating housing (1). A central column (31) is provided in the insertion hole (11). The central column (31) has a mounting hole (37) along its axial direction. The mounting hole (37) is connected to a central groove (39). A pin probe (38) is inserted into the central groove (39). The pin probe (38) is provided with a snap-fit part (381) and a probe electrode (382). Positive contact spring (4), the positive contact spring (4) is installed on the outer periphery of the central column (31), the positive contact spring (4) is provided with a positive spring (41) and a positive electrode (42). The outer periphery of the central column (31) is provided with a slot (32), the number of slots (32) is the same as the number of positive electrode springs (41), and the positive electrode springs (41) are engaged in the slots (32); The insulating housing (1) is provided with a plurality of first limiting grooves (13); The negative electrode contact spring (2) is provided with at least two sets of contact plates (21), and the contact plates (21) are provided with two or more negative electrode spring parts (211). The negative electrode contact spring (2) is also provided with a negative electrode (212). Multiple negative electrode spring parts (211) are distributed around the circumference of the central column (31). The first limiting groove (13) is provided corresponding to the negative electrode spring parts (211), and the negative electrode spring parts (211) are engaged in the first limiting groove (13).
2. A DC power socket as described in claim 1, characterized in that: It also includes a grounding shell (9), which has at least one locking hole (91) on each side. The grounding shell (9) is also provided with a grounding electrode (92). The insulating shell (1) is provided with a latching part (14) corresponding to the locking hole (91). The locking hole (91) can be engaged with the latching part (14).
3. A DC power socket as described in claim 2, characterized in that: The positive electrode (42), negative electrode (212), and ground electrode (92) are all vertically arranged.
4. A DC power socket as described in claim 3, characterized in that: The bottom of the insulating housing (1) is provided with at least two positioning posts (15), and the axis of the positioning posts (15) is vertical.
5. A DC power socket as described in claim 1, characterized in that: The positive electrode spring (41) has a bent edge (411) at its end, and the central column (31) has a buckle hole (33). The buckle hole (33) is provided in correspondence with the bent edge (411), and the bent edge (411) can be engaged in the buckle hole (33). The bent edge (411) is bent inward.
6. A DC power socket as described in claim 1, characterized in that: The insulating shell (1) is provided with a boss (12), which is attached to one side of the grounded shell (9).