CN218919333U

CN218919333U - Anti-loosening DC socket

Info

Publication number: CN218919333U
Application number: CN202222884415.2U
Authority: CN
Inventors: 高明松; 涂光文
Original assignee: Langzhong Jin Sanxin Electronics Co ltd
Current assignee: Langzhong Jin Sanxin Electronics Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-25
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of sockets, and particularly relates to a looseness-preventing DC socket which comprises a base, wherein a first cavity, a second cavity and a fixed block are arranged in the base, a mounting hole is formed in the fixed block for a central pin of the socket to pass through, and a jack is formed in the top of the base and communicated with the mounting hole; the socket center pin comprises a plug connection end, a wiring end and a connection block, and a clamping groove is formed outside the connection block; the limiting piece is of a plate-shaped structure, limiting strips are arranged on two sides of the bottom of the limiting piece, a limiting part formed between the limiting strips and the limiting piece is matched with the shape of the clamping groove, a slot is formed in the lower part of the fixed block and is communicated with the lower end of the mounting hole, and the lower end of the limiting strip can be abutted against the bottom of the slot; the transverse limiting block and the wiring terminal are arranged in the second cavity, the clamping opening which is matched with the shape of the wiring terminal is formed in the vertical direction by the transverse limiting block, the clamping opening can limit the rotation of the socket center needle around the axis of the plug connection end, and the loosening of the socket center needle can be prevented.

Description

Anti-loosening DC socket

Technical Field

The utility model belongs to the technical field of sockets, and particularly relates to a looseness-preventing DC socket.

Background

The DC socket is a socket matched with a special power supply of a computer display, and consists of a transverse socket, a longitudinal socket, an insulating base, a fork-shaped contact spring piece and a directional key slot, wherein the two fork-shaped contact spring pieces are positioned at the center of the base and are not connected with each other in a longitudinal and transverse arrangement. One end of the fork-shaped contact spring piece is a wiring port and is exposed out of the top surface of the base cylinder for connecting an input power cord or a flexible cable, the other end of the fork-shaped contact spring piece consists of two elastic arms which are interconnected by a base body and is arranged in an insulating base jack in the DC plug inserting direction, and the plug is used for a computer display to work normally.

The existing DC socket for the computer display and the notebook computer mainly comprises a power supply main body, pins and a socket center pin, wherein the power supply plug is frequently plugged into the DC socket, the socket center pin is easy to loosen, the power supply plug is connected with the DC socket in poor contact, and power cannot be supplied to the computer display or the notebook computer.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a looseness-preventing DC socket, which solves the problem that the existing socket center pin is easy to loosen, so that the power plug and the DC socket are connected in poor contact.

The technical scheme adopted by the utility model is as follows: a loosening-preventing DC jack comprising

The base is internally provided with a first cavity and a second cavity along the front-back direction in sequence, a fixed block is arranged between the first cavity and the second cavity, the fixed block is provided with a mounting hole along the front-back direction for a socket center needle to be mounted in the base, the top of the base is provided with a jack along the vertical direction for a limiting piece to be inserted, the jack is communicated with the mounting hole, and the front end surface of the first cavity is provided with a jack;

the socket center needle penetrates through the base along the front-rear direction and comprises a plug connection end and a wiring end with a bending structure, a connecting block is arranged between the plug connection end and the wiring end, and a circle of annular clamping grooves are formed in the peripheral wall of the connecting block inwards;

the limiting piece is of a plate-shaped structure, limiting strips are arranged on two sides of the bottom of the limiting piece, a limiting part formed between the limiting strips and the limiting piece is matched with the shape of the clamping groove, the limiting part can be clamped into the clamping groove, a slot is formed in the lower part of the fixed block corresponding to the limiting strips, the slot is communicated with the lower end of the mounting hole, and the lower end of the limiting strip can be abutted to the bottom of the slot;

the horizontal stopper, horizontal stopper with the wiring end all sets up in the second cavity, the vertical clamp mouth of having seted up of edge of horizontal stopper, clamp mouth and the shape of wiring end are the matching setting, clamp mouth can restrict the axis rotation of socket center needle around the plug link.

Further, the socket is characterized by further comprising a negative metal sheet, wherein the negative metal sheet is fixed on the front end face of the socket, the negative metal sheet is of an annular structure, and the inner ring of the negative metal sheet is matched with the shape of the socket and is communicated with the first cavity.

Further, the socket further comprises a contact metal elastic block, wherein the contact metal elastic block is in a cylindrical shape, the contact metal elastic block is sleeved on the peripheral wall of the central pin of the socket, and a plurality of metal contact elastic pieces are arranged on the contact metal block in an extending mode towards the negative electrode metal sheet and used for being connected with the negative electrode metal sheet.

Further, a negative electrode contact spring piece matched with the metal contact spring piece is arranged on the inner ring of the negative electrode metal piece, and the negative electrode contact spring piece is abutted to the metal contact spring piece.

Further, the metal contact spring plate of the contact metal spring block is further extended downwards to form a connecting pin, and the connecting pin extends outwards through the base.

Further, the base top is equipped with the mounting groove, the mounting groove is used for joint metal casing, the metal casing parcel sets up at the base surface, the both sides end of metal casing is equipped with the pin and is used for being connected with notebook circuit or computer display screen circuit board.

The utility model has the beneficial effects that:

1. through the cooperation of the fixing block, the mounting hole, the jack, the slot, the connecting block, the clamping groove, the limiting piece and the limiting strip in the base, when the socket center needle penetrates through the base to be mounted in the mounting hole, the limiting piece can play a limiting role in the vertical direction and the front-back direction on the socket center needle, and the limiting strip is matched with the slot to enable the vertical limiting of the socket center to be more stable, so that the socket center needle can be prevented from moving vertically up and down or in the front-back direction; through the cooperation of the second cavity, the transverse limiting block and the clamping opening with the wiring end of the socket center needle, the wiring end of the socket center needle is clamped and fixed in the clamping opening of the transverse limiting block, the effect of transverse limiting the whole socket center needle is achieved, and the socket center needle can be prevented from moving in the left-right direction; the utility model can better prevent the loosening of the central pin of the socket, avoid the abnormal use of the DC socket caused by poor connection and contact between the power plug and the DC socket, and improve the working stability and the firmness of the DC socket.

2. The annular negative metal spring plate is adopted as the negative electrode to increase the cross section area of conductor contact, the bending integrated socket center pin structure is adopted as the positive electrode, and the traditional positive copper column and terminal riveting structure is abandoned, so that the load power of the product is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the back structure of FIG. 1;

FIG. 3 is a right side cross-sectional view of the present utility model;

FIG. 4 is a cross-sectional view of the base of the present utility model;

FIG. 5 is a schematic view of the structure of the hub center pin of the present utility model;

FIG. 6 is a schematic view of a limiting member according to the present utility model;

the drawings are noted as follows:

base 1, first cavity 11, second cavity 12, fixed block 13, mounting hole 14, jack 15, socket 16, slot 17, mounting groove 18, socket center pin 2, plug connection end 21, wiring end 22, connecting block 23, clamping groove 24, spacing piece 3, spacing 31, spacing portion 32, lateral spacing piece 4, clamping opening 41, negative electrode metal sheet 5, negative electrode contact spring piece 51, contact metal spring piece 6, metal contact spring piece 61, connecting pin 62, metal housing 7.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 6, a locking DC socket comprises a base 1, wherein a first cavity 11 and a second cavity 12 are sequentially arranged in the base 1 along the front-back direction, a fixed block 13 is arranged between the first cavity 11 and the second cavity 12, a mounting hole 14 is formed in the fixed block 13 along the front-back direction for a socket center needle 2 to be mounted in the base 1, a jack 15 is formed in the top of the base 1 along the vertical direction for a limiting member 3 to be inserted, the jack 15 is communicated with the mounting hole 14, and a socket 16 is formed in the front end surface of the first cavity 11;

the socket center needle 2 penetrates through the base 1 along the front-rear direction, the socket center needle 2 comprises a plug connection end 21 and a wiring end 22 with a bending structure, a connecting block 23 is arranged between the plug connection end 21 and the wiring end 22, and a circle of annular clamping grooves 24 are formed in the periphery wall of the connecting block 23;

the limiting piece 3 is in a plate-shaped structure, limiting strips 31 are arranged on two sides of the bottom of the limiting piece 3, a limiting part 32 formed between the limiting strips 31 and the limiting piece 3 is matched with the shape of the clamping groove 24, the limiting part 32 can be clamped into the clamping groove 24, a slot 17 is arranged at the lower part of the fixed block 13 corresponding to the limiting strips 31, the slot 17 is communicated with the lower end of the mounting hole 14, and the lower end of the limiting strip 31 can be abutted against the bottom of the slot 17;

the transverse limiting block 4, the transverse limiting block 4 with the wiring end 22 all sets up in the second cavity 12, the clamp mouth 41 has been seted up along vertical to transverse limiting block 4, the clamp mouth 41 is the matching setting with the shape of wiring end 22, clamp mouth 41 can restrict socket center pin 2 and rotate around the axis of plug connection end 21.

As a preferred scheme, the lithium ion battery further comprises a negative electrode metal sheet 5, wherein the negative electrode metal sheet 5 is fixed on the front end face of the socket 16, the negative electrode metal sheet 5 is of an annular structure, and the inner ring of the negative electrode metal sheet 5 is matched with the socket 16 in shape and is communicated with the first cavity 11. The annular negative metal shrapnel is adopted in the negative electrode to increase the cross-sectional area of conductor contact, and the positive electrode adopts a bent integrated socket center pin 2 structure to give up the traditional positive copper post and terminal riveting structure, thereby improving the load power of the product.

As a preferable scheme, the socket further comprises a contact metal elastic block 6, wherein the contact metal elastic block 6 is in a cylindrical shape, the contact metal elastic block 6 is sleeved on the outer peripheral wall of the socket center pin 2, and a plurality of metal contact elastic pieces 61 are arranged towards the negative electrode metal sheet 5 in an extending mode and are used for being connected with the negative electrode metal sheet 5. The contact metal spring block 6 is used for conducting electricity, and the contact metal block extends towards the negative electrode metal sheet 5 and is provided with a plurality of metal contact spring pieces 61, specifically, the metal contact spring pieces 61 are arranged in a plum blossom shape, and the current amount passing through the DC socket can be improved.

Preferably, a negative electrode contact spring piece 51 matched with the metal contact spring piece 61 is arranged on the inner ring of the negative electrode metal piece 5, and the negative electrode contact spring piece 51 is abutted against the metal contact spring piece 61. The negative electrode metal sheet 5 is provided with a negative electrode contact spring sheet 51 matched with the metal contact spring sheet 61 on the inner ring, and is arranged in an abutting manner, so that the contact metal spring block 6 and the negative electrode metal sheet 5 are better connected into a loop.

Preferably, the metal contact spring 61 of the contact metal spring block 6 further extends downward to form a connection pin 62, and the connection pin 62 extends outward through the base 1. The connection pins 62 are provided so that the contact metal bumps 6 can be connected to a notebook circuit or a computer display screen circuit board.

As the preferred scheme, the base 1 top is equipped with mounting groove 18, mounting groove 18 is used for joint metal casing 7, metal casing 7 parcel sets up at base 1 surface, metal casing 7 both sides end is equipped with the pin and is used for being connected with notebook circuit or computer display screen circuit board. The metal shell 7 is arranged for being connected with the negative electrode of the notebook computer circuit or the computer display screen circuit board, specifically, the material of the metal shell 7 is preferably SUS304 stainless steel, and the metal shell 7 can also play a role in shielding so as to prevent electromagnetic wave interference of other electronic components on the notebook computer circuit or the computer display screen circuit board to the DC socket.

The working mode of the utility model is as follows:

during installation, the socket center pin 2 penetrates through the base 1 and is installed in the installation hole 14, the wiring end 22 of the socket center pin 2 is clamped into the clamping opening 41 of the transverse limiting block 4, the socket center pin 2 is limited in the left-right direction, then the limiting piece 3 is inserted into the jack 15 at the top of the base 1, the limiting part 32 formed between the limiting piece 3 and the limiting strip 31 is clamped into the clamping groove 24 on the socket center pin 2, the limiting strip 31 is clamped into the slot 17 of the fixing piece, the limiting effect in the vertical and front-back directions is achieved on the socket center pin 2, the socket center pin 2 is not easy to loosen, and the working stability and the firmness of the DC socket are improved; then the contact metal spring block 6 is sleeved on the peripheral wall of the central pin 2 of the socket, the negative electrode metal sheet 5 is fixed at the front end of the socket 16 of the base 1, the negative electrode contact spring sheet 51 is abutted with the metal contact spring sheet 61, and finally the metal shell 7 is arranged outside the base 1.

The present utility model has been described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A locking DC jack that moves, its characterized in that: comprising

The base (1), the inside first cavity (11) and second cavity (12) that are equipped with in proper order along the fore-and-aft direction of base (1), be equipped with fixed block (13) between first cavity (11) and second cavity (12), mounting hole (14) are seted up along the fore-and-aft direction in fixed block (13) for socket center needle (2) to install in base (1), jack (15) are seted up at base (1) top along vertical direction for locating part (3) to insert, jack (15) and mounting hole (14) intercommunication, terminal surface is equipped with socket (16) before first cavity (11);

the socket center needle (2) penetrates through the base (1) along the front-back direction, the socket center needle (2) comprises a plug connection end (21) and a wiring end (22) with a bending structure, a connecting block (23) is arranged between the plug connection end (21) and the wiring end (22), and a circle of annular clamping grooves (24) are formed in the peripheral wall of the connecting block (23) inwards;

the limiting piece (3), the limiting piece (3) is in a platy structure, limiting strips (31) are arranged on two sides of the bottom of the limiting piece (3), a limiting part (32) formed between the limiting strips (31) and the limiting piece (3) is matched with the shape of the clamping groove (24), the limiting part (32) can be clamped into the clamping groove (24), a slot (17) is arranged at the lower part of the fixed block (13) corresponding to the limiting strips (31), the slot (17) is communicated with the lower end of the mounting hole (14), and the lower end of the limiting strip (31) can be in butt joint with the bottom of the slot (17);

the horizontal stopper (4), horizontal stopper (4) with wiring end (22) all set up in second cavity (12), horizontal stopper (4) are along vertical opening clamp mouth (41), clamp mouth (41) are the matching setting with the shape of wiring end (22), clamp mouth (41) can restrict socket center needle (2) and rotate around the axis of plug connection end (21).

2. A loosening preventing DC outlet as claimed in claim 1, wherein: still include negative pole sheetmetal (5), negative pole sheetmetal (5) are fixed the preceding terminal surface of socket (16), just negative pole sheetmetal (5) are annular structure, the inner circle of negative pole sheetmetal (5) is the matching setting with socket (16) shape, and with first cavity (11) intercommunication.

3. A loosening preventing DC outlet as claimed in claim 2, wherein: the socket is characterized by further comprising a contact metal bullet block (6), wherein the contact metal bullet block (6) is in a cylindrical shape, the contact metal bullet block (6) is sleeved on the peripheral wall of the socket center needle (2), and a plurality of metal contact elastic pieces (61) are arranged towards the negative electrode metal sheet (5) in an extending mode and are used for being connected with the negative electrode metal sheet (5).

4. A loosening preventing DC outlet as claimed in claim 3, wherein: the negative electrode metal sheet (5) is provided with a negative electrode contact spring sheet (51) matched with the metal contact spring sheet (61) on the inner ring, and the negative electrode contact spring sheet (51) is abutted against the metal contact spring sheet (61).

5. A loosening preventing DC outlet as claimed in claim 3, wherein: and a connecting pin (62) is further downwards extended on the metal contact spring piece (61) of the contact metal spring piece (6), and the connecting pin (62) extends outwards through the base (1).

6. A loosening preventing DC outlet as claimed in claim 1, wherein: the utility model discloses a notebook computer display screen circuit board, including base (1), metal casing (7), base (1) top is equipped with mounting groove (18), mounting groove (18) are used for joint metal casing (7), metal casing (7) parcel sets up at base (1) surface, the both sides end of metal casing (7) is equipped with the pin and is used for being connected with notebook computer circuit or computer display screen circuit board.