A floating micro-sized high-current board-to-board power connector

Abstract

The application provides a floating micro large-current board-to-board power connector, which comprises a male connector and a female connector in plug-in cooperation; the male connector comprises a male housing and a male terminal arranged in the male housing; the female connector comprises a female housing and a floating housing arranged in the female housing, and a plurality of female terminals arranged in the floating housing. The floating housing can float up and down, left and right, and forward and backward in the female housing by a certain distance. After the male connector and the female connector are matched, the male connector is in tight cooperation with the floating housing and the female terminals, and the floating housing and the female terminals are in a floating state in the female plastic. When the male connector moves relative to the female connector, the male connector moves with the floating housing and the female terminals in the female plastic, and the floating function is provided in each direction of forward and backward, left and right, and up and down. The application provides a very good floating function through the connection part in a serpentine structure.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a floating, miniature, high-current board-to-board power connector. Background Technology

[0002] When using connectors, male and female connectors need to be connected. However, deviations can easily occur during mating and alignment of male and female connectors, which can lead to poor contact during use.

[0003] Secondly, with the widespread adoption of SMT (Surface Mount Technology), the application of surface mount connectors is becoming increasingly common. Board-to-board connectors used in reflow soldering processes on the market all employ surface mount (SMT) technology. The pins of the terminals extend laterally from the bottom of the plastic substrate to both sides, exceeding the plastic surface, and are connected to the PCB via reflow soldering; this occupies a relatively large PCB space. Furthermore, the existing connector terminals are also quite large, further increasing the connector space required. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a floating, miniature, high-current board-to-board power connector.

[0005] The technical solution of the present invention is as follows: a floating micro-miniature high-current board-to-board power connector, comprising a male connector and a female connector that are mated together; and both the male connector and the female connector are soldered together with the corresponding PCB board; the male connector comprises a male housing and a male terminal disposed within the male housing;

[0006] The female connector includes a female housing and a floating housing that is floatingly disposed within the female housing, wherein a plurality of female terminals are disposed within the floating housing.

[0007] Preferably, the floating shell and the mother shell have movable gaps at their upper and lower ends, front and rear ends, and left and right ends.

[0008] Preferably, the male terminal housing has a T-shaped structure, and a corresponding slot is provided in the middle of the male terminal housing, into which the male terminal is inserted.

[0009] Preferably, the male terminal includes a plate-shaped male terminal body, with multiple male welding ends provided at the lower end of the male terminal body, and the other end of the male terminal body is a plate-shaped male contact end.

[0010] Preferably, the female end housing is a frame structure with an opening at one end, and the other end of the female end housing is provided with multiple strip grooves for the welding ends of the female end terminals to extend out.

[0011] Preferably, the female end shell is also provided with a limiting hook, which is used to limit the floating shell.

[0012] Preferably, the floating shell has a T-shaped structure and is provided with a slot, which contains multiple rows of slots.

[0013] Preferably, the floating shell has symmetrical through-holes on both sides, and a locking block is provided in each of the through-holes.

[0014] Preferably, the female terminal includes a female terminal contact end and a female terminal welding end. The female terminal contact end is disposed on the contact end mounting part, and a serpentine connecting part is disposed on the other end of the contact end mounting part; a welding end mounting part is disposed on the other end of the serpentine connecting part; and a plurality of female terminal welding ends are disposed on the welding end mounting part.

[0015] Preferably, the female terminal contact end is a double-contact contact spring.

[0016] Preferably, the contact end mounting portions on both sides of the female terminal contact end are further provided with side wings; the side wings are also provided with notches, and the notches are engaged with the locking blocks in the notches of the floating shell.

[0017] Preferably, both the female terminal contact end and the contact end mounting part are disposed within the floating housing.

[0018] Preferably, the connecting part of the serpentine structure, the welding end mounting part, and the welding end of the female terminal are all located outside the floating shell.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The floating housing of this invention can float a certain distance up and down, left and right, and front and back within the female housing. After the male and female ends are properly engaged, the male connector, the floating housing, and the female terminal are in a tight fit, and the floating housing and the female terminal are in a floating state within the female plastic. When the male connector moves relative to the female end, the male connector will move the floating housing and the female terminal within the female plastic, providing floating functionality in all directions: front and back, left and right, and up and down.

[0021] 2. The present invention uses the locking blocks on both sides of the floating housing to engage with the notches of the female terminal, thereby ensuring that the female terminal and the floating housing do not become loose during the movement or insertion / removal process;

[0022] 3. The present invention provides excellent floating function by setting a serpentine connecting part, and the serpentine part will not undergo permanent deformation when the upper and lower ends of the female terminal move relatively large.

[0023] 4. The female terminal of this invention has a double-contact contact end. After the male terminal is inserted, the double-contact contact end can tightly hold the male terminal, ensuring stable and good contact even under prolonged strong motion. Under prolonged strong motion, the double-contact contact end can also provide a sufficiently large positive contact force, providing the necessary conditions for carrying large current. Through multiple contact points and stable positive contact force, the contact resistance can be effectively and greatly reduced, thereby meeting the requirement of carrying large current, with a current carrying capacity of over 30 amperes.

[0024] 5. The serpentine design terminal of the present invention goes directly vertically down to the PCB soldering hole, occupying very little space on the PCB, and the size can be reduced to 13.1mm x 10.6mm. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is another structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the male connector of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the male terminal of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the female connector of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the female end shell of the present invention;

[0031] Figure 7 This is a schematic diagram of the internal structure of the female connector of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the floating shell of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the female terminal of the present invention;

[0034] In the diagram, 1-male connector; 2-female connector; 3-slot;

[0035] 11-Male housing; 12-Male terminal;

[0036] 21-Female end housing; 22-Floating housing; 23-Female end terminal;

[0037] 121-Male terminal body, 122-Male welding end, 123-Male contact end, 124-Protrusion;

[0038] 211-Limit hook; 212-Slot;

[0039] 221 - Gap; 222 - Block;

[0040] 231-Female terminal contact end; 232-Female terminal welding end; 233-Contact end mounting part; 234-Connecting part; 235-Welding end mounting part; 236-Side wing; Detailed Implementation

[0041] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0042] Example 1

[0043] This embodiment provides a male connector, such as... Figure 3 As shown, the male connector 1 includes a male housing 11 and a male terminal 12 disposed within the male housing 11.

[0044] In a preferred embodiment, the male end housing 11 has a T-shaped structure, and a corresponding slot 3 is provided in the middle of the male end housing 11, and the male end terminal 12 is inserted into the slot 3.

[0045] As a preferred embodiment, such as Figure 4 As shown, the male terminal 12 includes a plate-shaped male terminal body 121. The lower end of the male terminal body 121 is provided with multiple male welding ends 122, and the other end of the male terminal body 121 is a plate-shaped male contact end 123. Furthermore, both ends of the male terminal body 121 are symmetrically provided with protrusions 124 for connection with the male terminal housing 11. In this embodiment, the welding points of the multiple male welding ends 122 have a tapered structure.

[0046] Example 2

[0047] This embodiment provides a female connector, such as Figure 5 As shown, the female connector 2 includes a female housing 21 and a floating housing 22 that can be floated within the female housing 21. The floating housing 22 is provided with a plurality of female terminals 23.

[0048] In a preferred embodiment, the floating shell 22 and the mother shell 21 have movable gaps at their upper and lower ends, front and rear ends, and left and right ends.

[0049] As a preferred embodiment, such as Figure 6 As shown, the female end housing 21 is a frame structure with an opening at one end, and the other end of the female end housing 21 is provided with a plurality of strip grooves for the female end terminal welding ends 232 of the female end terminal 23 to extend out.

[0050] As a preferred embodiment, such as Figure 6 As shown, the female end shell 21 of the frame structure is also provided with a limiting hook 211, which is used to limit the floating shell 22.

[0051] As a preferred embodiment, such as Figure 7 , 8 As shown, the floating shell 22 has a T-shaped structure and a slot 3 is provided on the floating shell 22. The slot 3 is provided with multiple rows of slots 212.

[0052] As a preferred embodiment, such as Figure 7 , 8 As shown, the floating shell 22 has symmetrical through notches 221 on both sides, and a locking block 222 is provided in the notch 221. The locking block 222 is used to lock the female terminal 23.

[0053] As a preferred embodiment, such as Figure 9 As shown, the female terminal 23 includes a female terminal contact end 231 and a female terminal welding end 232. The female terminal contact end 231 is disposed on the contact end mounting part 233, and a serpentine connecting part 234 is disposed on the other end of the contact end mounting part 233; a welding end mounting part 235 is disposed on the other end of the serpentine connecting part 234; and a plurality of female terminal welding ends 232 are disposed on the welding end mounting part 235.

[0054] As a preferred embodiment, such as Figure 9 As shown, the female terminal contact 231 is a double-contact contact spring.

[0055] As a preferred embodiment, such as Figure 9 As shown, the contact end mounting portions 233 on both sides of the female terminal contact end 231 are also provided with side wings 236; the side wings 236 are also provided with notches 221, and the notches 221 are engaged with the locking blocks 222 in the notches 221 of the floating shell 22.

[0056] As a preferred embodiment, such as Figure 9 As shown, the female terminal contact end 231 and the contact end mounting part 233 are both disposed inside the floating housing 22.

[0057] As a preferred embodiment, such as Figure 7 As shown, the connecting part 234 of the serpentine structure, the welding end mounting part 235, and the female terminal welding end 232 are all located outside the floating shell 22.

[0058] Example 3

[0059] like Figure 1 and 2 As shown, this embodiment provides a floating, miniature, high-current board-to-board power connector, including the male connector 1 described in Embodiment 1 and the female connector 2 described in Embodiment 2. The male connector 1 and the female connector 2 are plugged into each other; and both the male connector 1 and the female connector 2 are soldered to their respective PCB boards.

[0060] Example 4

[0061] This embodiment provides a terminal, such as Figure 9 As shown, the terminal includes a female terminal contact end 231 and a female terminal welding end 232. The female terminal contact end 231 is disposed on the contact end mounting part 233, and a serpentine connecting part 234 is disposed on the other end of the contact end mounting part 233; a welding end mounting part 235 is disposed on the other end of the serpentine connecting part 234; and a plurality of female terminal welding ends 232 are disposed on the welding end mounting part 235.

[0062] As a preferred embodiment, such as Figure 9 As shown, the female terminal contact 231 is a double-contact contact spring.

[0063] As a preferred embodiment, such as Figure 9 As shown, the contact end mounting portions 233 on both sides of the female terminal contact end 231 are also provided with side wings 236; the side wings 236 are also provided with notches 221.

[0064] The embodiments and descriptions above are merely illustrative of the principles and preferred embodiments of the present invention. Various changes and modifications may be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A floating micro high-current board-to-board power connector, comprising a male connector (1) and a female connector (2) which are insertedly connected together; and the male connector (1) and the female connector (2) are welded with corresponding PCB boards; characterized in that: The male connector (1) comprises a male housing (11) and a male terminal (12) arranged in the male housing (11); ​ The female connector (2) comprises a female housing (21) and a floating housing (22) arranged in the female housing (21) in a floating manner, and a plurality of female terminals (23) are arranged in the floating housing (22); The floating housing (22) has movable gaps with the upper and lower ends, the front and rear ends, and the left and right ends of the female housing (21); The female terminal (23) comprises a female terminal contact end (231) and a female terminal welding end (232), the female terminal contact end (231) is arranged on a contact end mounting portion (233), and a serpentine structure connecting portion (234) is arranged on the other end of the contact end mounting portion (233); the other end of the serpentine structure connecting portion (234) is provided with a welding end mounting portion (235); a plurality of female terminal welding ends (232) are arranged on the welding end mounting portion (235); and the female terminal contact end (231) is a double-contact contact spring piece; The male terminal (12) comprises a plate-shaped male terminal body (121), a plurality of male welding ends (122) are arranged on the lower end of the male terminal body (121), the other end of the male terminal body (121) is a plate-shaped male contact end (123), and protrusions (124) for connecting the male terminal body (121) with the male housing (11) are symmetrically arranged on the two ends of the male terminal body (121); The female housing (21) has a frame structure with an opening at one end, and a plurality of strip-shaped grooves are formed at the other end of the female housing (21) for the female terminal welding ends (232) of the female terminals (23) to extend out; The frame structure female housing (21) is further provided with a limiting catch (211) for limiting the floating housing (22).

2. The floating micro high current board-to-board power connector according to claim 1, wherein: The male housing (11) has a T-shaped structure, and a corresponding insertion slot (3) is formed at the middle position of the male housing (11), and the male terminal (12) is inserted into the insertion slot (3).

3. The floating micro high current board-to-board power connector according to claim 1, wherein: The floating housing (22) has a T-shaped structure, and the floating housing (22) is provided with an insertion slot (3), and a plurality of clamping grooves (212) are arranged in the insertion slot (3).

4. The floating micro high current board-to-board power connector according to claim 3, wherein: The floating housing (22) is further provided with symmetrical through notches (221) on the two sides, the notches (221) are provided with clamping blocks (222), and the clamping blocks (222) are clamped with the female terminals (23).

5. The floating micro high current board-to-board power connector according to claim 1, wherein: The contact end mounting portions (233) on the two sides of the female terminal contact end (231) are further provided with side wings (236), and the side wings (236) are further provided with notches (221), and the notches (221) are connected with the clamping blocks (222) in the notches (221) of the floating housing (22).

6. The floating micro high current board-to-board power connector according to claim 5, wherein: The female terminal contact end (231) and the contact end mounting portion (233) are arranged in the floating housing (22); the connecting portion (234) of the serpentine structure, the welding end mounting portion (235), and the female terminal welding end (232) are arranged outside the floating housing (22).

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