Elastic sheet locking power connector device

Abstract

The invention discloses an elastic sheet locking power supply connector device, which comprises a power supply connector main body, a metal elastic sheet is arranged in the power supply connector main body, a limiting through hole is formed in the metal elastic sheet, and when a plug earth pole pin is inserted into the limiting through hole, the limiting through hole is locked by the metal elastic sheet. An interference force is applied to the contact surface of the metal elastic sheet and the plug earth pole pin under the action of the elastic force of the metal elastic sheet, so that the plug earth pole pin is prevented from being directly pulled out; when the insulation button is pressed, the metal elastic sheet overcomes the self elastic force to generate displacement, and the interference force between the limiting through hole and the contact surface of the plug earth pole pin is relieved, so that the plug earth pole pin is directly pulled out. The technical scheme is reasonable in structural design, simple in structure, reliable in connection with the power plug, convenient to use and good in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of power connectors, and in particular to a spring-type locking power connector device. Background Art

[0002] Electrical equipment used in a home or office environment can be connected to the mains supply by a power cord that plugs into a mains wall socket at one end. Instead of permanent wiring, the other end of the power cord may be terminated with a line socket into which a matching plug may be inserted. When the plug is provided on the chassis of the device, it is referred to as a chassis plug or a panel plug. The most common example of such a power connector is a power connector that complies with the standards defined by the International Electrotechnical Commission (IEC) specification IEC 60320, particularly the C13-C14 connector used by personal computer equipment and peripherals. Some types of power connectors may also be used in the form of line plugs and panel sockets, but these types are less common. In the IEC specification, the term "connector" refers to a line socket (or panel socket), and the term "inlet" refers to a panel plug (or line plug).

[0003] The IEC standard includes two-conductor and three-conductor plugs with different current capacities and temperature ratings, which are specifically designed for the purpose of connecting the mains power cord to electrical equipment. A major advantage of the IEC connector standard is that it allows the use of interchangeable mains power cords, making it easy for equipment manufacturers to sell their equipment around the world as long as their equipment can operate under 120 / 240 volt, 50 / 60 Hz mains power.

[0004] There are still some deficiencies in the existing power connector structure. The disadvantage is that due to the unreasonable design of the existing power connector structure, the power connector and the power plug are easily pulled apart when pulled by external force, causing the power connector to easily separate from the power plug. This situation may occur when moving equipment or applying force to connecting wires, which will affect the stable transmission of power and may even cause serious problems such as power outages and equipment failures, resulting in poor practicality. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a spring-type locking power connector device which has a reasonable structural design, a simple structure, a reliable connection with a power plug, is convenient to use and has good practicality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spring-loaded power connector locking device, comprising a power connector body, a metal spring arranged in the power connector body, and a limiting through hole arranged on the metal spring. When the ground pin of the plug is inserted into the limiting through hole, the metal spring exerts an interference force on the contact surface of the ground pin of the plug under the action of its own elastic force, thereby preventing the ground pin of the plug from being directly pulled out.

[0007] The present invention is further configured as follows: an outer groove is provided at the front end of the power connector body, the metal spring is provided with multiple bending portions, a fulcrum is provided inside the power connector body, the head of the metal spring is provided on the fulcrum, the tail of the metal spring bypasses the outer groove and extends out of the power connector body, and an insulating button is provided at the tail of the metal spring; when the insulating button is pressed, the metal spring overcomes its own elastic force and displaces, thereby releasing the interference force between the limiting through hole and the contact surface of the plug ground pin, so that the plug ground pin can be directly pulled out.

[0008] The present invention is further configured as follows: the elastic force of the metal spring is achieved by separating the partial structure of the metal spring from the whole and putting it in a yielding state; the metal spring is integrally provided with a spring reinforcement rib near the limiting through hole end, and the power connector body is provided with a rib limiting groove aligned with the spring reinforcement rib position; the metal spring is provided with a first bending section downwardly facing away from the spring reinforcement rib end, a second bending section is provided at the lower end of the first bending section away from the spring reinforcement rib end, a third bending section is provided upwardly facing away from the end of the second bending section away from the first bending section, and a button connecting portion is provided at the upper end of the third bending section.

[0009] The present invention is further configured as follows: a plurality of pin through holes for connecting a power plug are arranged on the front end surface of the power connector body, the pin through holes include a ground pin through hole, and the limiting through hole is arranged to align with the ground pin through hole.

[0010] The present invention is further configured as follows: a button through hole is provided on the front end surface of the power connector body, an insulating button is provided in the button through hole, the inner end of the insulating button is connected to the button connecting part, and the metal spring is driven to deform and release the ground pin of the plug by pressing the insulating button.

[0011] The present invention is further configured as follows: a rear cover is detachably provided at the rear end of the power connector body, and a limiting rib is integrally provided in the rear cover so as to be aligned with the position of the spring sheet reinforcement rib; a downwardly bent elastic reset part is formed at the middle position of the bottom of the metal spring sheet by cutting, and the spring sheet reinforcement rib is limited by the limiting rib in the rear cover, thereby preventing the front end of the metal spring sheet from moving forward, backward, and up and down when rotating.

[0012] The present invention is further configured as follows: a plurality of conductive plugs are arranged in the rear cover, a conductive socket is fixedly arranged at the inner end of each conductive plug, and an opening of each conductive socket is arranged to align with a pin through hole.

[0013] The present invention is further configured such that: the rear end of the power connector body is fixed to the rear cover by snap-fit ​​connection or by bolt connection or by screw connection.

[0014] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention has a reasonable structural design, a power plug is arranged at the front end of the power connector body, a plug ground pin is fixedly arranged on the power plug, and when the plug ground pin is inserted into the limiting through hole, the metal spring sheet exerts an interference force on the contact surface of the plug ground pin under the action of its own elastic force, thereby preventing the plug ground pin from being directly pulled out; When the insulating button is pressed, the metal spring overcomes its own elastic force and moves, releasing the interference force between the limit through hole and the contact surface of the plug ground pin, so that the plug ground pin can be directly pulled out. It has a simple structure, reliable connection with the power plug, easy use and good practicality.

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is an exploded schematic diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a metal spring according to an embodiment of the present invention; Figure 4 A partial cross-sectional schematic diagram of an embodiment of the present invention; Figure 5 It is a partial cross-sectional schematic diagram of the plug ground electrode when inserted into the embodiment of the present invention; Figure 6 It is a cross-sectional schematic diagram of a ground pin of a metal spring locking plug according to an embodiment of the present invention; Figure 7 It is a cross-sectional schematic diagram of an embodiment of the present invention when a control button is pressed; Figure 8 It is a cross-sectional schematic diagram of the embodiment of the present invention when the control button is released; Fig. 9 This is a schematic structural diagram of a power connector body according to an embodiment of the present invention; Fig.10 This is a schematic diagram of a local structure before a control button is pressed according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the local structure before the control button is pressed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as limiting the present invention. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] See also Figures 1 to 11 The present invention discloses a spring-type locking power connector device, comprising a power connector body 1, wherein a metal spring 3 is arranged inside the power connector body 1, and a limiting through hole 31 is arranged on the metal spring 3. When the ground pin of the plug is inserted into the limiting through hole 31, the metal spring 3 exerts an interference force on the contact surface of the ground pin of the plug under the action of its own elastic force, thereby preventing the ground pin of the plug from being directly pulled out.

[0019] Preferably, a power plug is provided at the front end of the power connector body 1, and a plug ground pin 2 is fixedly provided on the power plug.

[0020] The front end of the power connector body 1 is provided with an outer groove, the metal spring 2 is provided with multiple bending parts, a fulcrum is provided inside the power connector body 1, the head of the metal spring 3 is provided on the fulcrum, the tail of the metal spring 3 bypasses the outer groove and extends out of the power connector body 1, and an insulating button 4 is provided at the tail of the metal spring 3; when the insulating button 4 is pressed, the metal spring 3 overcomes its own elastic force and moves, thereby releasing the interference force between the limiting through hole 31 and the contact surface of the plug ground pin, so that the plug ground pin can be directly pulled out.

[0021] In order to make the structural design of the present invention more reasonable, as a preferred embodiment, the elastic force of the metal spring 3 in this embodiment is achieved by separating the partial structure of the metal spring from the whole and putting it in a yielding state; the metal spring 3 is integrally provided with a spring reinforcing rib 32 near the limiting through hole end, and the power connector body 1 is provided with a rib limiting groove 12 aligned with the spring reinforcing rib position; The metal spring 3 is provided with a first bending section 33 downwardly away from the spring reinforcement rib end, a second bending section 34 is provided at the lower end of the first bending section 33 away from the spring reinforcement rib end, a third bending section 35 is provided upwardly away from the first bending section end of the second bending section 34, and a button connecting portion 36 is provided at the upper end of the third bending section 35.

[0022] A plurality of pin through holes for connecting a power plug are arranged on the front end surface of the power connector body 1 , wherein the pin through holes include a ground pin through hole 11 , and the limiting through hole 31 is arranged to align with the ground pin through hole 11 .

[0023] A button through hole 13 is provided on the front end surface of the power connector body 1, and an insulating button 4 is provided in the button through hole 13. The inner end of the insulating button 4 is connected to the button connecting part 36. By pressing the insulating button 4, the metal spring 3 is driven to deform and release the ground pin 2 of the plug.

[0024] A rear cover 5 is detachably provided at the rear end of the power connector body 1, and a limiting rib 51 is integrally provided in the rear cover 5 to align with the position of the spring sheet reinforcement rib 32; a downwardly bent elastic reset member 37 is formed in the middle position of the bottom of the metal spring sheet 3 by cutting, and the spring sheet reinforcement rib 32 is limited by the limiting rib 51 in the rear cover 5, thereby preventing the front end of the metal spring sheet 3 from moving forward and backward and up and down when rotating.

[0025] As a preference, both sides of the front end of the metal spring piece 3 are provided with spring piece reinforcing ribs 32. The end of the metal spring piece 3 close to the limiting through hole is the front end, that is, the head of the metal spring piece 3.

[0026] The rear cover 5 is provided with a plurality of conductive plugs 6, each conductive plug 6 is fixedly provided with a conductive socket 7 at the inner end thereof, and the opening of each conductive socket 7 is aligned with a pin through hole.

[0027] The rear end of the power connector body 1 is fixed to the rear cover 5 by snap-fit ​​connection, bolt connection or screw connection.

[0028] In actual application, a power plug is provided at the front end of the power connector body 1, and a plug ground pin 2 is fixedly provided on the power plug. When the plug ground pin 2 is inserted into the limiting through hole 31, the metal spring 3 exerts an interference force on the contact surface of the plug ground pin 2 under the action of its own elastic force, thereby preventing the plug ground pin 2 from being directly pulled out; When the insulating button 4 is pressed, the metal spring 3 overcomes its own elastic force to move, and the interference force between the limit through hole 31 and the contact surface of the plug ground pin 2 is released, so that the plug ground pin 2 can be directly pulled out. The structure is reasonable in design, simple in structure, reliable in connection with the power plug, easy to use and practical.

[0029] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A spring-type locking power connector device, comprising a power connector body (1), characterized in that: A metal spring (3) is arranged in the power connector body (1), and a limiting through hole (31) is arranged on the metal spring (3). When the grounding pin of the plug is inserted into the limiting through hole (31), the metal spring (3) exerts an interference force on the contact surface of the grounding pin of the plug under the action of its own elastic force, thereby preventing the grounding pin of the plug from being directly pulled out.

2. A spring-type locking power connector device according to claim 1, characterized in that: The front end of the power connector body (1) is provided with an external groove, the metal spring (2) is provided with a plurality of bent portions, a fulcrum is provided inside the power connector body (1), the head of the metal spring (3) is provided on the fulcrum, the tail of the metal spring (3) bypasses the external groove and extends outside the power connector body (1), and an insulating button (4) is provided at the tail of the metal spring (3); when the insulating button (4) is pressed, the metal spring (3) overcomes its own elastic force and moves, thereby releasing the interference force between the limiting through hole (31) and the contact surface of the plug ground pin, so that the plug ground pin is directly pulled out.

3. A spring-type locking power connector device according to claim 2, characterized in that: The gold The elastic force of the spring sheet (3) is achieved by separating a part of the structure of the metal spring sheet from the whole and placing it in a yielding state; the metal spring sheet (3) is integrally provided with a spring sheet reinforcement rib (32) near the end of the limiting through hole, and the power connector body (1) is provided with a rib limiting groove (12) aligned with the spring sheet reinforcement rib position; the metal spring sheet (3) is provided with a first bending section (33) facing downwards away from the spring sheet reinforcement rib end, a second bending section (34) is provided at the lower end of the first bending section (33) facing away from the spring sheet reinforcement rib end, a third bending section (35) is provided at the second bending section (34) facing away from the first bending section end and facing upwards, and a button connection portion (36) is provided at the upper end of the third bending section (35).

4. A spring-type locking power connector device according to claim 3, characterized in that: A plurality of pin through holes for connecting a power plug are arranged on the front end surface of the power connector body (1), the pin through holes comprising a ground pin through hole (11), and the limiting through hole (31) is arranged to align with the ground pin through hole (11).

5. A spring-type locking power connector device according to claim 4, characterized in that: A button through hole (13) is provided on the front end surface of the power connector body (1), an insulating button (4) is provided in the button through hole (13), an inner end of the insulating button (4) is connected to a button connecting portion (36), and the metal spring (3) is driven to deform and release the plug ground pin (2) by pressing the insulating button (4).

6. A spring-type locking power connector device according to claim 6, characterized in that: The rear end of the power connector body (1) is detachably provided with a rear cover (5), and a limiting rib (51) is integrally provided in the rear cover (5) so as to align with the position of the spring sheet reinforcement rib (32); a downwardly bent elastic reset member (37) is formed at the middle position of the bottom of the metal spring sheet (3) after cutting, and the spring sheet reinforcement rib (32) is limited by the limiting rib (51) in the rear cover (5), thereby preventing the front end of the metal spring sheet (3) from moving forward, backward, upward, and downward when rotating.

7. A spring-type locking power connector device according to claim 6, characterized in that: A plurality of conductive plugs (6) are arranged in the rear cover (5), a conductive socket (7) is fixedly arranged at the inner end of each conductive plug (6), and an opening of each conductive socket (7) is arranged to align with a pin through hole.

8. The spring-type locking power connector device according to claim 7, characterized in that: The rear end of the power connector body (1) is fixed to the rear cover (5) by means of a snap connection, or by means of a bolt connection, or by means of a screw connection.

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