CN218632506U

CN218632506U - Large-current sheet type terminal

Info

Publication number: CN218632506U
Application number: CN202222689178.4U
Authority: CN
Inventors: 曾波
Original assignee: Yiweikang Wuhan Electronic Technology Co ltd
Current assignee: Yiweikang Wuhan Electronic Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-03-14
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a large-current chip terminal, which comprises a base body, wherein the base body comprises an accommodating cavity, a reed made of elastic conductive material is clamped in the accommodating cavity, the reed comprises two mutually parallel chip-shaped spring plates and a spring bottom connecting the two spring plates, the two spring plates and the spring bottom form a structure with a U-shaped cross section, and the spring bottom and the spring plates are integrally formed; the opposite side surfaces of the two spring plates are used as inner sides, and the spring plates are provided with a plurality of contacts protruding inwards and a plurality of contacts protruding outwards. The utility model has the advantages that: the reed with multiple contacts is arranged in the integrally formed base body, the reed forms contacts in two directions through a wavy structure and comprises the contacts formed by the guide plate, so that a terminal structure with large contact span and large quantity is formed, and possibility is provided for bearing large current; the lower bottom and the tail part are welded on the rear plate of the lower plate after being butted, so that the current flowing path is improved, the current is uniform, and the electrical performance of the terminal is improved.

Description

Large-current sheet type terminal

Technical Field

The utility model relates to an electric connector field especially relates to a heavy current piece formula terminal.

Background

If the number of the contacts of the female terminal of the high-current electric connector is too small, large heat can be generated when current passes through the female terminal; to handle more current, the number of contacts must be increased; the increase of the contacts can also reduce the average stress of each contact, thereby prolonging the permanent deformation time of the contacts and prolonging the service life of the interface terminal. However, locally increasing the number of contacts too much results in a local decrease in the spring force of the spring, resulting in some contacts not being able to make good contact with the male terminal, and instead in a reduction in the number of effective contacts. In addition, see patent CN213959274U, which discloses a high-current electrical connector structure; taking the example of current flowing from the male terminal to the female terminal: the current from the male terminal flows to the upper side and the lower side of the socket contact part from the upper side and the lower side of the U-shaped reed respectively, then is gathered to the wire connecting part, and then flows to the wire from the wire connecting part; taking fig. 1 as an example, it is obvious that the current flowing into the upper side of the socket contact part will firstly flow into the lower side of the socket contact part through the connection part between the upper side and the lower side, and then flow into the wire connection part; that is, paths of the current flowing into the upper and lower sides of the socket contact are different, which causes the density of the current flowing on the female terminal to be non-uniform; this situation affects the terminal performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large current chip type terminal that effective contact quantity is many, simple structure, stable in shape, electric current are even.

In order to achieve the above object, the utility model provides a following technical scheme:

a large-current chip terminal comprises a substrate made of conductors, wherein the substrate comprises an accommodating cavity, the accommodating cavity is provided with at least one opening, a reed made of elastic conductive materials is clamped in the accommodating cavity, the reed comprises two mutually parallel sheet-shaped spring plates and a spring bottom connected with the two spring plates, the two spring plates and the spring bottom form a structure with a U-shaped cross section, and the spring bottom and the spring plates are integrally formed; the opposite side surfaces of the two spring plates are taken as inner sides, and a plurality of contact points protruding inwards and a plurality of contact points protruding outwards are arranged on the spring plates; the accommodating cavity is matched with the reed shape.

Preferably, the middle part of the spring plate is provided with a plurality of strip-shaped first through grooves which are parallel to each other from the front to the back direction, so that strip-shaped elastic strips are formed between the adjacent first through grooves; each elastic strip comprises a contact part with a wave-shaped structure, and the wave crests and the wave troughs of the contact part are the contacts.

Preferably, the front portion of the spring plate is provided with a plurality of second through grooves, each second through groove is internally provided with a guide plate which is convexly arranged towards the inner side, the front portion of the guide plate inclines towards the outer side, two sides of the guide plate are connected with the edges of the through grooves through connecting pieces, and the guide plate and the spring plate are integrally formed.

Preferably, the spring plate is provided with a plurality of through holes, each through hole is provided with a retaining plate, the front part of each retaining plate protrudes outwards, and the retaining plate and the spring plate are integrally formed.

Preferably, the base body includes an upper plate and a lower plate which are integrally formed; the upper plate comprises an upper bottom and a lower bottom which are connected into a zigzag structure; the lower plate comprises a front plate and a rear plate; the upper bottom and the front plate of the lower plate are mutually parallel to form an accommodating cavity in a surrounding manner, and the accommodating cavity comprises at least one opening; the lower plate is parallel to and connected with the rear plate of the lower plate, and the lower plate also comprises a tail part which is turned over for 180 degrees towards the lower plate and then fixedly connected with the rear plate of the lower plate.

Preferably, the length ratio between the lower base, the tail and the rear plate of the lower plate is 1; the lower bottom and the tail part are both connected with the rear plate of the lower plate in a welding mode.

Preferably, a connecting strip bent by 90 degrees is arranged on the upper bottom, a through connecting hole is arranged on the connecting strip, and a bolt inserted into the connecting hole is arranged on the lower plate, so that the opening is formed on each of the front surface and the side surface of the base body.

Preferably, a plurality of limiting blocks protruding towards the inner side are arranged on the upper plate and the lower plate.

Preferably, a plurality of stop holes penetrating through the upper plate and/or the lower plate are arranged on the upper plate and/or the lower plate.

Preferably, the front plate and the rear plate of the lower plate are connected in a zigzag structure.

The utility model has the advantages that: the reed with multiple contacts is arranged in the integrally formed base body, the reed forms contacts in two directions through a wavy structure and comprises the contacts formed by the guide plate, so that a terminal structure with large contact span and large quantity is formed, and possibility is provided for bearing large current; the stop hole and the limiting block form firm limiting on the reed, so that the separation of the reed is effectively avoided; the base body adopts a double-layer structure, the front part of the base body is provided with two open-ended containing cavities to form a structure of inserting the male terminal from the front or the side according to needs, the lower bottom and the tail part are butted and then welded on the rear plate of the lower plate, so that the path of current flowing is improved, the current is uniform, and the electrical performance of the terminal is improved.

Drawings

Fig. 1 is an exploded view of a first embodiment of the present invention;

fig. 2 is an exploded view of a second embodiment of the present invention;

FIG. 3 is a schematic perspective view of a substrate;

FIG. 4 is a perspective view of the reed;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a partially enlarged view at B in fig. 4.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, a large current chip terminal of the present invention includes a base 10 made of conductors, the base 10 includes a receiving cavity 12, and the receiving cavity 12 has 2 openings 14 perpendicular to each other. A spring plate 16 made of elastic conductive material is clamped in the accommodating cavity 12, the accommodating cavity 12 is matched with the spring plate 16 in a shape, and the spring plate 16 can be inserted into the accommodating cavity 12 from one opening 14 as required. The reed 16 comprises two mutually parallel sheet-shaped spring plates 18 and a spring bottom 20 connecting the two spring plates 18, the two spring plates 18 and the spring bottom 20 form a structure with a U-shaped cross section, and the spring bottom 20 and the spring plates 18 are integrally formed; the spring plate 18 is provided with a plurality of contacts 22 projecting inward and a plurality of contacts 22 projecting outward, with the opposite side surfaces of the two spring plates 18 being the inner sides. The plurality of inward and outward contacts 22 increases both the number of contacts 22 and the resiliency of the spring 16.

A plurality of first through grooves 24 which are parallel to each other and are long-strip-shaped are formed in the middle of the spring plate 18 from the front to the rear direction, (the front and rear direction is along the direction in which the male terminal is inserted, and the direction close to the male terminal is the front direction) so that an elastic strip 26 which is long-strip-shaped is formed between the adjacent first through grooves 24; each elastic strip 26 comprises a contact portion 28 with a wave-shaped structure, and the wave crests and the wave troughs of the contact portion 28 are the contacts 22; the entire elastic strip 26 may also be provided in an undulating configuration.

The front part of the spring plate 18 is provided with a plurality of second through grooves 30, a guide plate 32 which is convexly arranged towards the inner side is arranged in each second through groove 30, the front part of the guide plate 32 inclines towards the outer side, two sides of the guide plate 32 are connected with the edge of the second through groove 30 through connecting pieces 33, and the guide plate 32 and the spring plate 18 are integrally formed.

The spring plate 18 is provided with a plurality of through holes 34, each through hole 34 is provided with a retaining plate 36 with the front part protruding outwards, and the retaining plate 36 and the spring plate 18 are integrally formed.

The base body 10 includes an upper plate 38 and a lower plate 40 which are integrally formed; the upper plate 38 includes an upper base 42 and a lower base 44 connected in a zig-zag configuration; the lower plate 40 includes a front plate 46 and a rear plate 48; the upper bottom 42 and the front plate 46 of the lower plate 40 are parallel to each other to define a containing cavity 12, and the containing cavity 12 comprises at least one opening 14; the base 44 is parallel to and connected to the rear panel 48 of the lower panel 40, and the lower panel 40 further includes a tail portion 50 which is folded 180 degrees toward the base 44 and is fixedly connected to the rear panel 48 of the lower panel 40.

The length ratio between the lower base 44, the tail 50 and the rear plate 48 of the lower plate 40 is 1; the lower base 44 and the tail part 50 are connected with the rear plate 48 of the lower plate 40 in a welding mode; this arrangement allows current to flow uniformly to the connecting wires.

The upper base 42 is provided with a connecting bar 52 bent at 90 °, the connecting bar 52 is provided with a through connecting hole 54, and the lower plate 40 is provided with a pin 56 inserted into the connecting hole 54, thereby forming an opening 14 on each of the front and side surfaces of the base body 10.

The upper plate 38 and the lower plate 40 are each provided with a plurality of stoppers 58 projecting inward, and the stoppers 58 are used to restrict the position of the spring 16 in the left-right direction (the left-right direction is perpendicular to the aforementioned front-rear direction).

The upper plate 38 and/or the lower plate 40 are/is provided with a plurality of through retaining holes 60, and after the reed 16 is inserted into the accommodating cavity 12, the retaining plate 36 is just clamped into the retaining holes 60 to prevent the reed 16 from falling off from the accommodating cavity 12.

Further, the front plate 46 and the rear plate 48 of the lower plate 40 are connected in a zigzag structure.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A large current chip terminal, which comprises a substrate made of conductors, is characterized in that: the base body comprises an accommodating cavity, the accommodating cavity is provided with at least one opening, a reed made of elastic conductive materials is clamped in the accommodating cavity and comprises two mutually parallel sheet-shaped spring plates and a spring bottom connected with the two spring plates, the two spring plates and the spring bottom form a structure with a U-shaped cross section, and the spring bottom and the spring plates are integrally formed; the opposite side surfaces of the two spring plates are taken as inner sides, and a plurality of contact points protruding inwards and a plurality of contact points protruding outwards are arranged on the spring plates; the accommodating cavity is matched with the reed shape.

2. A high current chip terminal according to claim 1, wherein: a plurality of strip-shaped first through grooves which are parallel to each other are formed in the middle of the spring plate from front to back, so that strip-shaped elastic strips are formed between the adjacent first through grooves; each elastic strip comprises a contact part with a wave-shaped structure, and the wave crests and the wave troughs of the contact part are the contacts.

3. A high current chip terminal according to claim 1, wherein: the spring plate is characterized in that a plurality of second through grooves are formed in the front portion of the spring plate, a guide plate protruding towards the inner side is arranged in each second through groove, the front portion of the guide plate inclines towards the outer side, the two sides of the guide plate are connected with the edges of the through grooves through connecting pieces, and the guide plate and the spring plate are integrally formed.

4. A high current blade terminal according to claim 1, wherein: the spring plate is provided with a plurality of through holes, each through hole is provided with a retaining plate with the front part protruding outwards, and the retaining plate and the spring plate are integrally formed.

5. A high current blade terminal according to any one of claims 1 to 4, wherein: the substrate comprises an upper plate and a lower plate which are integrally formed; the upper plate comprises an upper bottom and a lower bottom which are connected into a zigzag structure; the lower plate comprises a front plate and a rear plate; the upper bottom and the front plate of the lower plate are mutually parallel to form an accommodating cavity in a surrounding manner, and the accommodating cavity comprises at least one opening; the lower plate is parallel to and connected with the rear plate of the lower plate, and the lower plate also comprises a tail part which is turned over for 180 degrees towards the lower plate and then fixedly connected with the rear plate of the lower plate.

6. A high current blade terminal according to claim 5, wherein: the length ratio among the lower bottom, the tail part and the rear plate of the lower plate is 1; the lower bottom and the tail part are both connected with the rear plate of the lower plate in a welding mode.

7. A high current chip terminal according to claim 5, wherein: the upper bottom is provided with a connecting strip bent by 90 degrees, the connecting strip is provided with a through connecting hole, and the lower plate is provided with a bolt inserted into the connecting hole, so that the front surface and the side surface of the base body are respectively provided with the opening.

8. A high current chip terminal according to claim 5, wherein: all be provided with the convex stopper of a plurality of inboard on upper plate and the hypoplastron.

9. A high current chip terminal according to claim 5, wherein: and the upper plate and/or the lower plate are/is provided with a plurality of penetrating backstop holes.

10. A high current chip terminal according to claim 5, wherein: the front plate and the rear plate of the lower plate are connected into a zigzag structure.