Novel large-current connector

Abstract

The utility model discloses a novel heavy current connector, which comprises a connector shell, an upper row terminal group and a lower row terminal group, the upper row terminal group comprises a first upper terminal element, a second upper terminal element and an upper terminal fixing seat, and the lower row terminal group comprises a first lower terminal element, a second lower terminal element and a lower terminal fixing seat. According to the utility model, the structural design is reasonable, the cross sectional area of the terminal can be increased by arranging the two upper terminal elements in parallel and arranging the two lower terminal elements in parallel and arranging the two lower terminal elements in parallel, and the two upper terminal elements can form a plurality of upper end elastic sheets which are densely arranged and distributed; the two lower terminal elements can form a plurality of densely arranged and distributed lower terminal elastic sheets, and the contact area can be increased by the contact of the plurality of elastic sheets, so that the current-carrying capability can be improved by increasing the contact area in a limited space. The connector has the advantages of high current-carrying capacity, low resistance, high reliability, good contact pressure, convenience in assembly, no PIN overturning and the like.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a novel high-current connector. Background Technology

[0002] To achieve stable and reliable high-current transmission, various high-current connectors have emerged on the market. However, existing high-current connectors generally suffer from the following shortcomings:

[0003] 1. Existing high-current connectors generally have two rows of terminals inside the housing, which have few contact points with the mating connector, resulting in a small contact area and poor current carrying capacity.

[0004] 2. The connector has a complex structure, is inconvenient to assemble, and its terminals do not have a stable structure, which may lead to loosening during long-term use. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a new type of high-current connector that is easy to assemble and has advantages such as high current carrying capacity, low resistance, high reliability, and good contact pressure.

[0006] To achieve the above objectives, this utility model provides a novel high-current connector, comprising a connector housing, an upper terminal group, and a lower terminal group. The front end of the connector housing is provided with a parallel upper tongue plate and a lower tongue plate. The upper terminal group is inserted into an upper terminal receiving groove inside the connector housing, and the lower terminal group is inserted into a lower terminal receiving groove inside the connector housing. The upper terminal group includes a first upper terminal element, a second upper terminal element, and an upper terminal fixing seat. The front end of the first upper terminal element is provided with a plurality of spaced-apart first upper bullet pieces, and the front end of the second upper terminal element is provided with a plurality of spaced-apart second upper bullet pieces. The first and second upper terminal elements are in contact with each other and are fixed together side-by-side by the upper terminal fixing seat. Each first upper bullet piece is located between two adjacent second upper bullet pieces. The front end of each first upper bullet piece... The end contact portion and the front contact portion of each second upper end bullet piece are normally on the same plane and exposed on the lower surface of the upper tongue plate. The lower terminal group includes a first lower terminal element, a second lower terminal element and a lower terminal fixing seat. The front end of the first lower terminal element is provided with a number of spaced first lower end bullet pieces, and the front end of the second lower terminal element is provided with a number of spaced second lower end bullet pieces. The first lower terminal element and the second lower terminal element are in contact with each other and are fixed together side by side by the lower terminal fixing seat. Each first lower end bullet piece is located between two adjacent second lower end bullet pieces. The front contact portion of each first lower end bullet piece and the front contact portion of each second lower end bullet piece are normally on the same plane and exposed on the upper surface of the lower tongue plate. The upper terminal fixing seat and the lower terminal fixing seat are respectively engaged with the inside of the connector housing.

[0007] Preferably, the upper surface of the upper terminal fixing seat and the lower surface of the lower terminal fixing seat are respectively provided with a first buckle, and the inner wall of the connector housing is provided with a first snap position, and the first buckle and the corresponding first snap position are engaged.

[0008] Preferably, a slot partition is provided between the upper terminal receiving slot and the lower terminal receiving slot of the connector housing. The upper and lower surfaces of the slot partition are respectively provided with second buckles. The lower surface of the upper terminal fixing seat and the upper surface of the lower terminal fixing seat are respectively provided with second fastening positions. The second buckles and the corresponding second fastening positions are engaged.

[0009] Preferably, guide blocks are provided on the left and right sides of the upper terminal fixing seat and the left and right sides of the lower terminal fixing seat, and guide grooves are provided on the left and right sides of the upper terminal receiving groove and the lower terminal receiving groove of the connector housing, and the guide blocks are movably inserted into the corresponding guide grooves.

[0010] Preferably, the upper terminal fixing seat is integrally formed on the outside of the first upper terminal element and the second upper terminal element by injection molding, and the lower terminal fixing seat is integrally formed on the outside of the first lower terminal element and the second lower terminal element by injection molding.

[0011] Preferably, the first upper terminal element is provided with a first positioning protrusion, and the second upper terminal element is provided with a first positioning groove, and the first positioning protrusion is installed in the corresponding first positioning groove.

[0012] Preferably, the first lower terminal element is provided with a second positioning protrusion, and the second lower terminal element is provided with a second positioning groove, with the second positioning protrusion installed in the corresponding second positioning groove.

[0013] Preferably, the connector housing has side plates on the upper and lower front sides, grounding elements on the front of the two side plates, and grounding end bullets extending forward and spaced apart at the lower ends of the two grounding elements. The upper surface of the upper tongue plate and the lower surface of the lower tongue plate have several spring plate placement slots extending forward and spaced apart. The grounding end bullets of the two grounding elements are located in the corresponding spring plate placement slots.

[0014] Preferably, the heads of all grounding end bullet pieces of the two grounding elements are connected to anti-tilting limiting plates, which are perpendicular to the grounding end bullet pieces. The left and right sides of the anti-tilting limiting plates extend outwards, and the front end of the upper surface of the upper tongue plate and the front end of the lower surface of the lower tongue plate are respectively provided with end limiting grooves. The left and right sides of each spring piece placement slot of the upper tongue plate and the left and right sides of each spring piece placement slot of the lower tongue plate are respectively provided with side limiting grooves. The anti-tilting limiting plates are respectively embedded in the end limiting grooves and side limiting grooves.

[0015] Preferably, each grounding end bullet piece has a limiting point on the left and right sides of its rear end, and the limiting point is embedded in the corresponding side limiting groove.

[0016] Preferably, the periphery of each of the two grounding elements is provided with a fixing hook for fixed connection with the side plate of the connector housing.

[0017] Preferably, the front of each of the two grounding elements is provided with a positioning contact spring.

[0018] Preferably, the connector further includes an upper row of cables and a lower row of cables. The upper row of cables has two rows of upper cables, which are respectively connected to the first upper terminal element and the second upper terminal element by cold pressing welding. The lower row of cables has two rows of lower cables, which are respectively connected to the first lower terminal element and the second lower terminal element by cold pressing welding.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The structure of this utility model is reasonably designed. The upper terminal group has two upper terminal elements connected side by side, and the lower terminal group has two lower terminal elements connected side by side. Both aligning the two upper terminal elements and aligning the two lower terminal elements can increase the cross-sectional area of ​​the terminals. Furthermore, the two upper terminal elements can form multiple densely arranged upper bullet pieces, and the two lower terminal elements can form multiple densely arranged lower bullet pieces. The contact of multiple bullet pieces can increase the contact area. The terminal structure of this utility model can improve the current carrying capacity by increasing the contact area within a limited space. This connector has the advantages of high current carrying capacity, low resistance, high reliability, and good contact pressure.

[0021] 2. The upper and lower terminal groups of this utility model can be quickly snapped into the inside of the connector housing through their respective corresponding terminal fixing seats, making assembly more convenient and improving stability.

[0022] 3. The grounding end bullet piece of the grounding element of this utility model adopts an anti-tilting limit design, which can avoid the problem of pin flipping and improve stability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the novel high-current connector provided in this embodiment of the utility model;

[0025] Figure 2 This is an exploded view of the novel high-current connector provided in this embodiment of the utility model;

[0026] Figure 3 This is a cross-sectional view of the novel high-current connector provided in this embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the connector housing provided in this embodiment of the utility model. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the connector housing provided in this embodiment of the utility model. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the upper and lower terminal groups provided in this embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the bottom structure of the upper row of terminal blocks provided in this embodiment of the utility model;

[0031] Figure 8 This is an exploded view of the two terminal components provided in this embodiment of the utility model;

[0032] Figure 9 This is a schematic diagram of the structure of the grounding element provided in an embodiment of the present invention;

[0033] Figure 10 This is a wiring diagram of the novel high-current connector provided in this embodiment of the utility model. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 The present invention provides a novel high-current connector, including a connector housing 1, an upper terminal group 2, a lower terminal group 3, and a grounding element 4, etc. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0036] like Figure 3 , Figure 4 and Figure 5 As shown, the connector housing can be made of insulating plastic. The front end of the connector housing 1 is provided with an upper tongue plate 11 and a lower tongue plate 12 that are parallel to each other. The upper terminal group 2 is inserted into the upper terminal receiving groove 101 inside the connector housing 1, and the lower terminal group 3 is inserted into the lower terminal receiving groove 102 inside the connector housing 1.

[0037] like Figure 6 , Figure 7 and Figure 8As shown, the upper terminal group 2 may include a first upper terminal element 21, a second upper terminal element 22, and an upper terminal fixing seat 23. The front end of the first upper terminal element 21 is provided with a plurality of spaced first upper bullet pieces 211, and the front end of the second upper terminal element 22 is provided with a plurality of spaced second upper bullet pieces 221. The first upper terminal element 21 and the second upper terminal element 22 are in contact with each other and are fixed together side by side by the upper terminal fixing seat 23. Each first upper bullet piece 211 is located between two adjacent second upper bullet pieces 221. The front contact portion (i.e., the arc-shaped protrusion portion) of each first upper bullet piece 211 and the front contact portion (i.e., the arc-shaped protrusion portion) of each second upper bullet piece 221 are on the same plane under normal conditions and are exposed on the lower surface of the upper tongue plate 11 (see Figure 3 ).

[0038] Setting two upper terminal elements side by side can increase the cross-sectional area of ​​the terminal, and the two upper terminal elements can form multiple densely arranged upper bullet pieces. Using multiple bullet contact pieces can increase the contact area.

[0039] like Figure 6 , Figure 7 and Figure 8 As shown, the lower terminal group 3 may include a first lower terminal element 31, a second lower terminal element 32, and a lower terminal fixing seat 33. The front end of the first lower terminal element 31 is provided with a plurality of spaced first lower end bullet pieces 311, and the front end of the second lower terminal element 32 is provided with a plurality of spaced second lower end bullet pieces 321. The first lower terminal element 31 and the second lower terminal element 32 are in contact with each other and are fixed together side by side by the lower terminal fixing seat 33. Each first lower end bullet piece 311 is located between two adjacent second lower end bullet pieces 321. The front contact portion (i.e., the arc-shaped protrusion portion) of each first lower end bullet piece 311 and the front contact portion (i.e., the arc-shaped protrusion portion) of each second lower end bullet piece 321 are on the same plane and exposed on the upper surface of the lower tongue plate 12 under normal conditions (see...). Figure 3 ).

[0040] To position the two terminal components so that terminal holders can be injection molded onto their exterior, such as... Figure 8As shown, the first upper terminal element 21 may be provided with a first positioning protrusion 24, and the second upper terminal element 22 may be provided with a first positioning groove 25. When the first upper terminal element 21 and the second upper terminal element 22 are arranged side by side, the first positioning protrusion 24 is installed in the corresponding first positioning groove 25 to perform a positioning function. Similarly, the first lower terminal element 31 may be provided with a second positioning protrusion 34, and the second lower terminal element 32 may be provided with a second positioning groove 35. When the first lower terminal element 31 and the second lower terminal element 32 are arranged side by side, the second positioning protrusion 34 is installed in the corresponding second positioning groove 35.

[0041] In this embodiment, preferably, the upper terminal fixing seat 23 can be integrally formed on the outside of the first upper terminal element 21 and the second upper terminal element 22 by injection molding, and the lower terminal fixing seat 33 can be integrally formed on the outside of the first lower terminal element 31 and the second lower terminal element 32 by injection molding.

[0042] During installation, the first upper terminal element 21 and the second upper terminal element 22 can be installed inside the connector housing 1 through the upper terminal fixing seat 23, and the upper terminal fixing seat 23 can be engaged with the inside of the connector housing 1. The first lower terminal element 31 and the second lower terminal element 32 can be installed inside the connector housing 1 through the lower terminal fixing seat 33, and the lower terminal fixing seat 33 can be engaged with the inside of the connector housing 1.

[0043] As a preferred embodiment, such as Figure 5 and Figure 6 As shown, the upper surface of the upper terminal fixing seat 23 and the lower surface of the lower terminal fixing seat 33 are respectively provided with a first buckle 231, and the inner wall of the connector housing 1 is provided with a first snap position 13. The first buckle 231 can be snapped into the corresponding first snap position 13.

[0044] Furthermore, such as Figure 5 and Figure 7 As shown, a slot partition 14 is provided between the upper terminal receiving slot 101 and the lower terminal receiving slot 102 of the connector housing 1. The upper and lower surfaces of the slot partition 14 are respectively provided with second buckles 15. The lower surface of the upper terminal fixing seat 23 and the upper surface of the lower terminal fixing seat 33 are respectively provided with second latches 232. The second buckles 15 can be engaged with the corresponding second latches 232.

[0045] In this embodiment, the upper and lower terminal groups can be quickly snapped into the inside of the connector housing through their respective corresponding terminal fixing seats, making assembly more convenient and improving stability.

[0046] like Figure 5 and Figure 6As shown, guide blocks 233 can be provided on the left and right sides of the upper terminal fixing seat 23 and the left and right sides of the lower terminal fixing seat 33 respectively. Guide grooves 16 can also be provided on the left and right sides of the upper terminal receiving groove and the lower terminal receiving groove of the connector housing 1 respectively. The guide blocks 233 are movably inserted into the corresponding guide grooves 16. This guide structure is beneficial to the assembly of the connector.

[0047] like Figure 1 , Figure 2 , Figure 4 and Figure 9 As shown, the connector housing 1 has side plates 17 on the upper and lower front sides respectively. The front of the two side plates 17 is provided with grounding elements 4 respectively. The lower ends of the two grounding elements 4 are provided with a number of forward-extending and spaced grounding end bullet pieces 41. The upper surface of the upper tongue plate 11 and the lower surface of the lower tongue plate 12 are provided with a number of forward-extending and spaced spring piece placement slots 18 respectively. The grounding end bullet pieces 41 of the two grounding elements 4 are respectively located in the corresponding spring piece placement slots 18.

[0048] like Figure 1 , Figure 4 and Figure 9 As shown, the heads of all grounding end bullet pieces 41 of each grounding element 4 can be connected to an anti-tilting limiting piece 42. The anti-tilting limiting piece 42 is perpendicular to the grounding end bullet piece 41. The left and right sides of the anti-tilting limiting piece 42 extend outwards respectively. The front end of the upper surface of the upper tongue plate 11 and the front end of the lower surface of the lower tongue plate 12 are respectively provided with end limiting grooves 19. The left and right sides of each bullet placement groove 18 of the upper tongue plate 11 and the left and right sides of each bullet placement groove 18 of the lower tongue plate 12 are respectively provided with side limiting grooves 10. The left and right ends of the anti-tilting limiting piece 42 can be respectively inserted into the side limiting grooves 10 located at the leftmost and rightmost sides. The main body of the anti-tilting limiting piece 42 can be inserted into the end limiting grooves 19.

[0049] In this embodiment, the grounding end bullet piece of the grounding element is connected as a whole and adopts an anti-tilting limit design, which can avoid the problem of pin flipping and improve stability.

[0050] Better, such as Figure 9 As shown, each grounding end bullet piece 41 can also be provided with limiting points 43 on the left and right sides of its rear end. The limiting points 43 can be embedded in the corresponding side limiting grooves 110, which can make the grounding end bullet piece more stable.

[0051] like Figure 1 and Figure 9 As shown, the two grounding elements 4 can each be provided with a fixing hook 44 around their periphery, and the grounding element 4 can be fixedly connected to the side plate 17 of the connector housing 1 through the fixing hook 44.

[0052] like Figure 1 and Figure 9 As shown, the front of the two grounding elements 4 can also be provided with positioning contact springs 45 respectively. When the connector of this embodiment is inserted into the mating connector (male and female insertion), the positioning contact springs 45 can contact the corresponding parts of the mating connector to form a circuit, so as to provide a signal and ensure that the insertion is in place.

[0053] like Figure 10 As shown, the connector may also include an upper cable 5 and a lower cable 6. The upper cable 5 has two rows of upper cables 51, which can be connected to the first upper terminal element 21 and the second upper terminal element 22 respectively by cold pressure welding. The lower cable 6 has two rows of lower cables 61, which can be connected to the first lower terminal element 31 and the second lower terminal element 32 respectively by cold pressure welding.

[0054] In summary, the present invention has a reasonable structural design and has the advantages of high current carrying capacity, low resistance, high reliability, good contact pressure, convenient assembly, and no pin flipping.

[0055] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A novel high-current connector, comprising a connector housing, an upper terminal group, and a lower terminal group, wherein the front end of the connector housing is provided with an upper tongue plate and a lower tongue plate that are parallel to each other, the upper terminal group is inserted into an upper terminal receiving groove inside the connector housing, and the lower terminal group is inserted into a lower terminal receiving groove inside the connector housing, characterized in that: The upper terminal group includes a first upper terminal element, a second upper terminal element, and an upper terminal fixing base. The front end of the first upper terminal element has several spaced-apart first upper bullet pieces, and the front end of the second upper terminal element has several spaced-apart second upper bullet pieces. The first and second upper terminal elements are in contact with each other and are fixed side-by-side together by the upper terminal fixing base. Each first upper bullet piece is located between two adjacent second upper bullet pieces. The front contact points of each first and second upper bullet piece are normally on the same plane and exposed on the lower surface of the upper tongue plate. The lower terminal group includes a first lower terminal element. The connector comprises a first lower terminal element, a second lower terminal element, and a lower terminal fixing seat. The front end of the first lower terminal element is provided with several spaced-apart first lower end bullet pieces, and the front end of the second lower terminal element is provided with several spaced-apart second lower end bullet pieces. The first lower terminal element and the second lower terminal element are in contact with each other and are fixed together side by side by the lower terminal fixing seat. Each first lower end bullet piece is located between two adjacent second lower end bullet pieces. The front end contact points of each first lower end bullet piece and each second lower end bullet piece are on the same plane and exposed on the upper surface of the lower tongue plate under normal conditions. The upper terminal fixing seat and the lower terminal fixing seat are respectively engaged with the interior of the connector housing.

2. The novel high-current connector according to claim 1, characterized in that: The upper surface of the upper terminal fixing seat and the lower surface of the lower terminal fixing seat are respectively provided with a first buckle, and the inner wall of the connector housing is provided with a first snap position. The first buckle and the corresponding first snap position are engaged.

3. The novel high-current connector according to claim 1, characterized in that: A slot partition is provided between the upper terminal receiving slot and the lower terminal receiving slot of the connector housing. The upper and lower surfaces of the slot partition are respectively provided with second buckles. The lower surface of the upper terminal fixing seat and the upper surface of the lower terminal fixing seat are respectively provided with second fastening positions. The second buckles and the corresponding second fastening positions are engaged.

4. A novel high-current connector according to claim 1, characterized in that: The left and right sides of the upper terminal fixing seat and the left and right sides of the lower terminal fixing seat are respectively provided with guide blocks, and the left and right sides of the upper terminal receiving groove and the lower terminal receiving groove of the connector housing are respectively provided with guide grooves, and the guide blocks are movably inserted into the corresponding guide grooves.

5. A novel high-current connector according to claim 1, characterized in that: The upper terminal fixing seat is integrally formed on the outside of the first upper terminal element and the second upper terminal element by injection molding, and the lower terminal fixing seat is integrally formed on the outside of the first lower terminal element and the second lower terminal element by injection molding.

6. A novel high-current connector according to claim 1, characterized in that: The first upper terminal element is provided with a first positioning protrusion, and the second upper terminal element is provided with a first positioning groove, and the first positioning protrusion is installed in the corresponding first positioning groove; The first lower terminal element is provided with a second positioning protrusion, and the second lower terminal element is provided with a second positioning groove, and the second positioning protrusion is installed in the corresponding second positioning groove.

7. A novel high-current connector according to claim 1, characterized in that: The connector housing has side plates on the upper and lower front sides, and grounding elements are provided on the front of the two side plates. The lower ends of the two grounding elements are provided with a number of forward-extending and spaced-apart grounding end bullets. The upper surface of the upper tongue plate and the lower surface of the lower tongue plate are provided with a number of forward-extending and spaced-apart spring piece placement slots. The grounding end bullets of the two grounding elements are located in the corresponding spring piece placement slots.

8. A novel high-current connector according to claim 7, characterized in that: The heads of all grounding end bullet pieces of the two grounding elements are connected to anti-tilting limiting pieces respectively. The anti-tilting limiting pieces are perpendicular to the grounding end bullet pieces. The left and right sides of the anti-tilting limiting pieces extend outward respectively. The front end of the upper surface of the upper tongue plate and the front end of the lower surface of the lower tongue plate are respectively provided with end limiting grooves. The left and right sides of each bullet placement slot of the upper tongue plate and the left and right sides of each bullet placement slot of the lower tongue plate are respectively provided with side limiting grooves. The anti-tilting limiting pieces are respectively embedded in the end limiting grooves and side limiting grooves. Each grounding end bullet piece has a limiting point on the left and right sides of its rear end, and the limiting point is embedded in the corresponding side limiting groove.

9. A novel high-current connector according to claim 1, characterized in that: The periphery of each of the two grounding elements is provided with fixing hooks for fixed connection with the side plate of the connector housing; The front of each of the two grounding elements is provided with a positioning contact spring.

10. A novel high-current connector according to claim 1, characterized in that: It also includes an upper row of cables and a lower row of cables. The upper row of cables has two rows of upper cables, which are respectively connected to the first upper terminal element and the second upper terminal element by cold pressure welding. The lower row of cables has two rows of lower cables, which are respectively connected to the first lower terminal element and the second lower terminal element by cold pressure welding.

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