Plug and large-current connector

Abstract

The utility model discloses a plug and a heavy-current connector, which are simple in structure and easy to assemble. The plug comprises a contact pin which comprises a first contact pin section and a second contact pin section; the pin installation parts comprise a first installation part and a second installation part, the first installation part comprises a first installation cylinder and a second installation cylinder, and the side, corresponding to the first installation cylinder, of the second installation cylinder and the end, corresponding to the wiring end of the second pin section, of the second installation cylinder are each of an opening structure; the second installation part wraps the opening structure of the side, corresponding to the first installation cylinder, of the second installation cylinder so as to abut against the second pin section. The plug shell comprises a first shell and a second shell, the second shell and the first shell are detachably connected in a sealed mode, the second shell and the first shell jointly form at least one positioning cavity used for installing the contact pin installation piece, and the positioning cavity is provided with a first wire outlet hole and a second wire outlet hole; and the connection part of the first shell and the second shell is provided with a placement opening into which the pin mounting piece can be pushed.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a plug and a high-current connector. Background Art

[0002] High-current connectors are widely used in fields such as electric vehicles, electric forklifts, UPS, general power supplies, medical equipment, solar energy, and new energy.

[0003] High-current connectors have single-core connectors or multi-core connectors, and have characteristics such as large current-carrying capacity and large volume. In a high-current connector with a bent wire outlet, due to characteristics such as large volume, the general structure is complex and the assembly is complex. For example, the "High-voltage High-current Connector" with the application number CN202011427278.9. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a plug and a high-current connector with a simple structure and easy assembly.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] The first aspect of the utility model provides a plug, comprising:

[0007] A pin, the pin includes a first pin segment and a second pin segment that are sequentially connected to form an "L" shape;

[0008] A pin mounting member, the pin mounting member includes a first mounting member and a second mounting member, the first mounting member includes a first mounting cylinder for mounting the first pin segment and a second mounting cylinder that is interconnected and used for mounting the second pin segment, one side of the second mounting cylinder corresponding to the first mounting cylinder and one end corresponding to the wiring end of the second pin segment are both of an open structure, and the second mounting member covers the open structure on the side of the second mounting cylinder corresponding to the first mounting cylinder to abut against the second pin segment;

[0009] A plug housing, the plug housing includes a first housing and a second housing, the second housing is detachably and sealingly connected to the first housing and jointly forms at least one positioning cavity for mounting the pin mounting member with the first housing, first wire outlet holes and second wire outlet holes are respectively arranged at positions corresponding to the first pin segment and the second pin segment on the positioning cavity, and an insertion port for pushing in the pin mounting member is arranged at the connection between the first housing and the second housing.

[0010] The second aspect of the utility model provides a high-current connector, comprising a plug as described in the first aspect and a socket adapted to the plug.

[0011] The utility model has the following advantages:

[0012] In this solution, the pin mounting member for fixing the pins is split into two parts, which facilitates the installation of the pins. At the same time, the positioning cavity for fixing the pin mounting member is split into two parts. An inlet is provided on the first housing, which facilitates the assembly of the pin mounting member. The structure of the entire plug is simple and easy to assemble. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is the front view of the plug of the utility model;

[0015] Figure 2 It is Figure 1 the sectional view taken along line A-A in

[0016] Figure 3 It is the schematic diagram of the installation structure of the pin and the first mounting member;

[0017] Figure 4 It is the schematic diagram of the installation structure of the pin and the pin mounting member;

[0018] Figure 5 It is the side view of the pin mounting member;

[0019] Figure 6 It is a schematic diagram of a structure of the second housing;

[0020] Figure 7 It is a schematic diagram of a structure of the plug, which is a three-core structure. The states of the cores from left to right are assembled, with the pin mounting member assembled, and not assembled;

[0021] Figure 8 It is a schematic diagram of a structure of the socket;

[0022] Figure 9 It is Figure 8 the sectional view taken along line A-A in

[0023] Figure 10 It is the assembly drawing of the jack and the gear sleeve. Detailed Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0026] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0027] It should be noted that: Similar reference numerals and letters indicate similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this utility model is usually placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The present utility model discloses a plug and a high-current connector. Among them, the high-current connector includes the plug and a socket adapted to the plug.

[0031] As Figures 1 to 7 shown, the plug includes a pin 1, a pin mounting member for mounting the pin, and a plug housing for fixing and protecting the pin mounting member. Among them, the plug is bent, that is, the pin includes a first pin segment and a second pin segment that are sequentially connected to form an "L" shape. Correspondingly, for the convenience of assembly, the pin mounting member includes a first mounting member and a second mounting member 23. The first mounting member includes a first mounting cylinder 21 for mounting the first pin segment and a second mounting cylinder 22 that are interconnected and used for mounting the second pin segment. One side of the second mounting cylinder 22 corresponding to the first mounting cylinder 21 and one end corresponding to the wiring end of the second pin segment are both open structures. The second mounting member is wrapped around the open structure on the side of the second mounting cylinder 22 corresponding to the first mounting cylinder 21 to abut against the second pin segment. With the structure of this pin mounting member, referring to Figure 3 shown, during installation, the pin can be directly inserted into the open structure on the side of the second mounting cylinder 22 corresponding to the first mounting cylinder 21 and then the second mounting member can be installed. At the same time, the plug housing includes a first housing 31 and a second housing 32. The second housing is detachably and sealingly connected to the first housing and together with the first housing forms at least one positioning cavity for mounting the pin mounting member. First wire outlet holes 311 and second wire outlet holes 322 are respectively provided at positions corresponding to the first pin segment and the second pin segment on the positioning cavity. An insertion port 312 for pushing the pin mounting member is provided at the connection between the first housing 31 and the second housing 32. During installation, the pin mounting member can be directly pushed into the positioning cavity through the insertion port and then the second housing can be fixed.

[0032] The plug structure adopting the above structure is simple in structure and easy to assemble.

[0033] The number of positioning cavities on the plug housing is determined according to the number of pins, which can be one or greater than or equal to 2. When the number of positioning cavities is greater than or equal to 2, in order to improve the sealing performance, the positioning cavities should be in an isolated state.

[0034] Based on the above principle, there are many implementation methods for the plug housing. In order to improve the sealing performance at the plug end, a first flange 33 is provided around the insertion port 312 of the first housing 31, and a sealing groove 331 for fixing a sealing ring 34 is provided along the periphery of the insertion port 312 on the first flange 33; a second flange 321 connected to the first flange 33 is provided on the second housing 32.

[0035] The structures of the first housing and the second housing can be implemented in a variety of structures. Exemplarily, referring toFigure 6 , the second housing 32 is triangular, that is, the first housing and the second housing respectively form half of the positioning cavity for installing the second mounting member 23. At this time, the second wire outlet hole 322 is provided on the second housing 32. The second housing 32 can also be plate-shaped, that is, it is arranged parallel to the axial direction of the second pin segment and perpendicular to the first pin segment. At this time, the second wire outlet hole 322 is provided on the first housing. For the convenience of setting the first flange 33 and the second flange 321, the first structure is preferably adopted.

[0036] To improve the plugging stability of the plug, referring to Figure 2 , 7 , a first convex structure 3111 that abuts against the second mounting cylinder 22 is provided on the inner wall of the first wire outlet hole 311. A circular mounting groove 212 is provided on the first mounting cylinder 21 outside the first convex structure 3111, and a snap ring 35 that abuts against the outer end face of the first wire outlet hole 311 is installed in the mounting groove. The first convex structure 3111, the second mounting cylinder 22, and the snap ring 35 cooperate to achieve axial limit, further improving the plugging performance.

[0037] To improve the plugging stability of the plug, a limiting groove 3112 is provided on the first convex structure 3111, and a second convex structure 211 that matches the limiting groove 3112 is provided on the first mounting cylinder 21. The limiting groove and the second convex structure 211 cooperate to achieve radial limit, further improving the plugging performance.

[0038] A third convex structure 231 for abutting against the second pin segment is provided on the second mounting member 23. A groove is provided on one side of the third convex structure 231 facing the second housing 32, and a fourth convex structure 323 that is snapped into the groove is provided at the corresponding position of the second housing 32. The setting of the third convex structure 231, while achieving abutment with the second pin segment and improving the plugging stability, increases the design depth of the groove and improves the axial limiting effect of the fourth convex structure 323 on the second mounting member 23.

[0039] To improve the fixing stability of the plug and the socket, a third flange 313 for connecting with the socket is provided on the first housing 31.

[0040] The socket can be implemented in a variety of structures, as long as it is adapted to the plug of any of the above structures.

[0041] Exemplarily, such as Figures 8 to 10As shown in the figure, a socket includes a socket housing 4, a jack mounting member 5, a jack 6, and a gear sleeve 7. Among them, a positioning through-hole 41 corresponding to the positioning cavity is provided on the socket housing 4, and a stepped structure 42 is provided in the positioning through-hole 41; the jack mounting member is cylindrical, and a fifth protrusion structure 51 for connecting with the stepped structure 42 is circumferentially provided on the outer wall of the jack mounting member, and a limiting protrusion 52 is provided on the inner wall; the jack 6 is used for plugging with the pin 1, and a sixth protrusion structure 61 and a gear sleeve mounting groove are respectively provided on both sides of the limiting protrusion 52 on the jack 6; the gear sleeve 7 is arranged in the gear sleeve mounting groove.

[0042] For the socket with the above structure, the number of positioning through-holes is the same as the number of pins at the plug end. When the number of positioning through-holes is greater than or equal to 2, each positioning through-hole is isolated from each other.

[0043] A fourth flange 45 is provided at the position corresponding to the third flange 313 on the socket housing 4 to realize the fixation of the socket and the plug.

[0044] In order to enhance the structural stability of the socket, a reinforcing rib can be provided between the positioning through-holes 41.

[0045] In order to further realize the sealing performance of the plug and socket connection, an insertion end adapted to the first wire outlet hole 311 is provided on the socket housing 4, and a first sealing groove 44 for fixing the second sealing ring 43 is provided between the insertion end and the inner wall of the first wire outlet hole 311.

[0046] The socket with the above structure is also simple in structure and easy to install.

[0047] During assembly, as Figure 9 described, first place the jack 6 into the jack mounting member 5. After the sixth protrusion structure 61 abuts against the limiting protrusion 52, install the gear sleeve 7 to realize the assembly of the jack mounting member 5 and the jack 6; then place the jack mounting member 5 into the socket housing 4 from above, so that the fifth protrusion structure 51 abuts against the stepped structure 42, and then use bolts to fixedly connect the stepped structure 42 and the fifth protrusion structure 51.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plug, characterized in that, Comprising: A pin (1), the pin comprising a first pin segment and a second pin segment that are sequentially connected to form an "L" shape; A pin mounting member, the pin mounting member comprising a first mounting member and a second mounting member (23), the first mounting member comprising a first mounting cylinder (21) for mounting the first pin segment and a second mounting cylinder (22) that are interconnected and for mounting the second pin segment, the second mounting cylinder (22) and the first mounting cylinder (21) The corresponding side and the end corresponding to the wiring end of the second pin segment are both of an open structure, and the second mounting member is wrapped around the open structure on the corresponding side of the second mounting cylinder (22) and the first mounting cylinder (21) to abut against the second pin segment; A plug housing, the plug housing comprising a first housing (31) and a second housing (32), the second housing being detachably and sealingly connected to the first housing and jointly forming at least one positioning cavity for mounting the pin mounting member with the first housing, a first wire outlet hole (311) and a second wire outlet hole (322) are respectively provided at positions corresponding to the first pin segment and the second pin segment on the positioning cavity, and an insertion port (312) for pushing in the pin mounting member is provided at the connection between the first housing (31) and the second housing (32).

2. The plug according to claim 1, characterized in that: A first flange (33) is provided around the insertion port (312) of the first housing (31), and a first sealing groove (331) for fixing a first sealing ring (34) is provided along the periphery of the insertion port (312) on the first flange (33); A second flange (321) connected to the first flange (33) is provided on the second housing (32).

3. A plug according to claim 1, characterized in that: A first convex structure (3111) that abuts against the second mounting cylinder (22) is provided on the inner wall of the first wire outlet hole (311), and a ring of mounting grooves (212) is provided on the first mounting cylinder (21) outside the first convex structure (3111), and a snap ring (35) that abuts against the outer end face of the first wire outlet hole (311) is mounted in the mounting grooves.

4. A plug according to claim 3, characterized in that: A limiting groove (3112) is provided on the first convex structure (3111), and a second convex structure (211) that matches the limiting groove (3112) is provided on the first mounting cylinder (21).

5. A plug according to claim 1, wherein: A third convex structure (231) for abutting against the second pin segment is provided on the second mounting member (23), a groove is provided on one side of the third convex structure (231) facing the second housing (32), and a fourth convex structure (323) that is snapped into the groove is provided at the corresponding position of the second housing (32).

6. A plug according to claim 1, characterized in that: The second housing (32) is triangular.

7. A plug according to claim 1, characterized in that: A third flange (313) for connecting to a socket is provided on the first housing (31).

8. A high-current connector, characterized in that, Comprising a plug according to any one of claims 1 to 7 and a socket adapted to the plug.

9. The large current connector according to claim 8, characterized in that, The socket comprises: A socket housing (4), a positioning through hole (41) corresponding to the positioning cavity is provided on the socket housing (4), and a stepped structure (42) is provided in the positioning through hole (41); A jack mounting member (5), the jack mounting member being cylindrical, a fifth protrusion structure (51) for connecting with the stepped structure (42) being circumferentially arranged on the outer wall of the jack mounting member and a limiting protrusion (52) being arranged on the inner wall; a jack (6), the jack (6) being used for plugging with the pin (1), a sixth protrusion structure (61) and a gear sleeve mounting groove being respectively arranged on both sides of the limiting protrusion (52) on the jack (6); A gear sleeve (7), the gear sleeve (7) being arranged in the gear sleeve mounting groove.

10. A large current connector according to claim 9, characterized in that: An insertion end adapted to the first wire outlet hole (311) is arranged on the socket housing (4), and a first sealing groove (44) for fixing the second sealing ring (43) is arranged between the insertion end and the inner wall of the first wire outlet hole (311).

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