Terminal structure and connector

Abstract

The utility model discloses a terminal structure and a connector, and the terminal structure comprises a housing which is provided with a plurality of installation parts in the length direction, and the plurality of installation parts are provided with at least two different heights; and the terminal is supported on the mounting part and is provided with a plug-in port, and the plug-in port is used for being connected with an accessory. The terminal structure is simple to process, the peak value of the insertion force is staggered when an accessory is inserted, the insertion force when the accessory is inserted into the terminal is reduced, and the assembling difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection equipment, and more specifically, to a terminal structure. In addition, the utility model also relates to a connector including the terminal structure. Background Art

[0002] With the rise of new energy vehicles and the market demand for fast charging, the current carrying capacity of high-voltage connectors is increasingly required. As an accessory product for achieving electrical connection, sheet terminals can provide different current carrying requirements by adjusting their quantity and are widely used in a variety of connectors.

[0003] In the related art, when the fork-shaped terminals with fork-shaped structures on both sides are used, the number of terminals is increased, and the insertion force between the terminals and the accessories is also increased. Excessive insertion force is not conducive to plugging and unplugging, affecting production and assembly. Based on this, in a dislocated and superimposed spring fork assembly, the length of the four contact line ends of the single-piece spring fork is changed to achieve the dislocation of the spring assembly as a whole in the height direction. In addition, the adapter terminal corresponding to the spring assembly is also set to a wave shape. By changing the structural form of the adapter terminal and the terminal, the peak insertion force during assembly is avoided and the insertion force is reduced. However, this method essentially achieves dislocation by changing the structural form of the terminal and the matching accessories, which is difficult to process and assemble.

[0004] In summary, how to provide a terminal structure that can reduce the insertion and extraction force while reducing the difficulty of processing and assembly is a problem that currently needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a terminal structure that is easy to process and can stagger the peak of the insertion force when inserting the accessory, thereby reducing the insertion force when inserting the accessory into the terminal and reducing the difficulty of assembly. Another purpose of the utility model is to provide a connector including the above-mentioned terminal structure.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A terminal structure, comprising:

[0008] A shell, wherein a plurality of mounting portions are provided in the length direction of the shell, and the plurality of mounting portions have at least two different heights;

[0009] The terminal is supported on the mounting portion to form an insertion interface, and the insertion interface is used to connect with a matching accessory.

[0010] Preferably, the shell has an inner chamber, a plurality of the mounting portions are arranged on two side walls of the inner chamber, and the mounting bosses on both sides of the terminal are supported on the mounting portions.

[0011] Preferably, a limiting portion is provided on the side wall of the inner cavity, and the height of the limiting portion is greater than the height of the mounting portion, for restricting the movement of the end of the mounting boss.

[0012] Preferably, the terminal includes a cantilever, the mounting boss protrudes outward along the cantilever, and there is a gap between the cantilever and the limiting portion.

[0013] Preferably, an opening groove is provided at a position corresponding to the insertion interface on the housing, for guiding the insertion and extraction of both the mating part and the insertion interface.

[0014] Preferably, the opening groove is a U-shaped groove, and the opening of the U-shaped groove is for the insertion of the mating part.

[0015] Preferably, the housing includes a first housing and a second housing detachably connected thereto, and a plurality of the mounting portions are provided on at least one of the first housing and the second housing.

[0016] Preferably, a hook is provided on any one of the first housing and the second housing, and a clamping portion cooperating with the hook is provided on the other.

[0017] The present utility model further provides a connector, including the terminal structure described in any one of the above, and the mating part is inserted into the insertion interface of the terminal structure.

[0018] Preferably, the mating part is a vertically arranged copper bar and / or a horizontally arranged copper bar.

[0019] The terminal structure provided by the present utility model includes a housing and a terminal. A plurality of mounting portions are provided in the length direction of the housing, and the plurality of mounting portions have at least two different heights. The terminal is supported on the mounting portions. Due to the height difference formed by the mounting portions, the insertion interfaces of the terminal after installation also have a height difference; when the mating part is inserted into the insertion interface, the insertion interface of the terminal at the higher position first contacts the mating part to reach the peak insertion force. After passing the higher position, the insertion force peak of this terminal has passed. Then, the insertion interface of the terminal at the relatively lower position subsequently contacts the mating part to reach the peak insertion force. By processing the housing of the terminal structure to form mounting portions with different heights, the processing is simple, so that the peak insertion forces are staggered when the mating part is inserted, reducing the insertion force when the mating part is inserted into the terminal and reducing the assembly difficulty. Description of the Drawings

[0020] 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 the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0021] Figure 1 Structural schematic diagram of the terminal structure provided by the present invention;

[0022] Figure 2 For Figure 1 Cross-sectional view;

[0023] Figure 3 For Figure 1 Exploded view;

[0024] Figure 4 Internal structural schematic diagram of the terminal structure provided by the present invention;

[0025] Figure 5 Structural schematic diagram of the terminal provided by the present invention;

[0026] Figure 6 Structural schematic diagram of the first housing provided by the present invention;

[0027] Figure 7 Structural schematic diagram of the second housing provided by the present invention;

[0028] Figure 8 Another structural schematic diagram of the first housing provided by the present invention;

[0029] Figure 9 Another structural schematic diagram of the second housing provided by the present invention;

[0030] Figure 10 Structural schematic diagram of the connector provided by the present invention;

[0031] Figure 11 Structural schematic diagram of the accessory provided by the present invention;

[0032] Figure 12 The first step schematic diagram of the connection between the accessory and the terminal provided by the present invention;

[0033] Figure 13 The second step schematic diagram of the connection between the accessory and the terminal provided by the present invention;

[0034] Figure 14 The third step schematic diagram of the connection between the accessory and the terminal provided by the present invention.

[0035] Figures 1 - 14 Among them, the reference numerals include:

[0036] 1 - Terminal; 2 - First housing; 3 - Second housing; 6 - Mounting portion; 7 - Inner cavity; 8 - Mate; 10 - Opening groove; 11 - Insertion port; 12 - Cantilever; 13 - Mounting boss; 14 - Contact boss; 21 - Snap - connection portion; 31 - Hook; 81 - Flat portion; 82 - Chamfered portion. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] The core of the present invention is to provide a terminal structure with simple processing, which makes the peak values of the insertion forces during the insertion of the mate staggered, reduces the insertion force when the mate is inserted into the terminal, and reduces the difficulty of assembly. Another core of the present invention is to provide a connector including the above - mentioned terminal structure.

[0039] The terminal structure provided by the present invention includes a housing and a terminal 1. The housing is the outer shell of the terminal structure, and the terminal 1 is arranged inside the housing. Please refer specifically to Figures 1 - 5 .

[0040] A plurality of mounting portions 6 are provided in the length direction of the housing. The plurality of mounting portions 6 have at least two different heights. Taking the height direction of the mounting portion 6 and the height direction of the housing as the same, at least two adjacent mounting portions 6 among the plurality of mounting portions 6 have different heights.

[0041] Optionally, the plurality of mounting portions 6 correspond to a plurality of heights, and all the mounting portions 6 have different heights.

[0042] Optionally, two mounting portions 6 have different heights, and among all the mounting portions 6, two adjacent mounting portions 6 have different heights, and two spaced - apart mounting portions 6 have the same height.

[0043] Optionally, the plurality of mounting portions 6 can form a stepped structure or a wavy structure.

[0044] Please refer to Figures 6 - 7, when several mounting parts 6 form a stepped structure, there are multiple grooves provided on the housing, and a protrusion is formed between two adjacent grooves. Both the grooves and the protrusions are mounting parts 6 for supporting the terminal 1. Through the height difference between the grooves and the protrusions, several mounting parts 6 with different heights are formed. The grooves and protrusions corresponding to the stepped structure here can be trapezoidal structures or square structures, and can be flexibly designed according to the actual situation.

[0045] The heights of at least two mounting parts 6 are different. If one mounting part 6 corresponds to one terminal 1 and one terminal 1 corresponds to one insertion interface 11, then after the terminal structure is mounted on the housing structure, the heights of the insertion interfaces 11 corresponding to at least two terminals 1 are inconsistent, so that when the fitting 8 is connected to the insertion interface 11, a peak can be generated at different times.

[0046] If one mounting part 6 corresponds to multiple terminals 1 (a set of terminal components) and each set of terminal components corresponds to one insertion interface 11, then after the terminal structure is mounted on the housing structure, the heights of the insertion interfaces 11 corresponding to at least two sets of terminal components are inconsistent, so that when the fitting 8 is connected to the insertion interface 11, a peak can be generated at different times.

[0047] Please refer to Figures 8 - 9 , when several mounting parts 6 form a wavy structure, both the high end and the low end of the wave are mounting parts 6. Through the wavy structure, several mounting parts 6 with different heights are set, so as to generate a peak at different times when the fitting 8 is connected to the insertion interface 11, and reduce the insertion force when the fitting 8 is inserted into the terminal.

[0048] Preferably, the terminal 1 is supported on the mounting part 6. On the premise of meeting the current-carrying requirement, the terminal 1 here is actually a terminal component. The terminal component includes multiple terminals 1, and the structures of the multiple terminals 1 are the same. Several groups of terminal components correspond one by one to the number of mounting parts 6 for reliable support and installation of the terminal structure.

[0049] Please refer to Figures 10 - 11 , the fitting 8 specifically includes a chamfered part 82 and a flat part 81. When the fitting 8 is inserted into the insertion interface 11, the chamfered part 82 first contacts the contact boss 14 of the terminal 1.

[0050] Terminal 1 has a socket 11. Due to the different heights of several mounting parts 6, the bottom surface of the socket 11 also forms a stepped structure or a wavy structure. When the fitting 8 is inserted into the terminal 1, the contact boss 14 of the terminal 1 at the higher position first contacts the fitting 8. At this time, the terminal 1 at the higher position first reaches the peak insertion force; when the fitting 8 is inserted further, the contact boss 14 of the terminal 1 at the relatively lower position contacts the fitting 8. At this time, the terminal 1 at the higher position has missed the peak insertion force and reaches the sliding friction state. Therefore, only the terminal at the lower position begins to reach the peak insertion force; when the fitting 8 is inserted further, all the terminals 1 at all positions have missed the peak insertion force and reach the sliding friction state. Please refer to specifically Figures 12 - 14 。

[0051] By setting the heights of at least two mounting parts 6 to be different, the peak insertion forces are staggered when the fitting 8 and the terminal 1 are connected, reducing the insertion force when the terminal 1 and the fitting 8 are inserted, and ensuring the production and assembly process. Similarly, when the operation of removing the fitting 8 is performed, at least the pulling force can also be reduced.

[0052] Optionally, the housing in this embodiment is of an integral structure, and one socket 11 is provided for the terminal 1 of the integral structure, and the integral structure can meet the assembly and insertion requirements.

[0053] Optionally, the housing is of a split structure, and two sockets 11 are correspondingly provided on both sides of the terminal 1. The split structure is convenient for assembly and insertion.

[0054] Optionally, the mounting boss 13 on which the terminal 1 in this embodiment is supported on the mounting part 6 can be one or two, and the mounting part 6 can be specifically set in combination with the structure of the terminal 1.

[0055] The above terminal structure includes a housing and a terminal 1. Among them, several mounting parts 6 are provided on the length direction of the housing, and at least two of the several mounting parts 6 have different heights. The terminal 1 is supported on the mounting part 6. Due to the height difference formed by the mounting part 6, the socket 11 of the terminal 1 also has a height difference after installation; when the fitting 8 is inserted into the socket 11, the socket 11 of the terminal 1 at the higher position first contacts the fitting 8 to reach the peak insertion force. After passing the higher position, the terminal 1 at this position has missed the peak insertion force. Then, the socket 11 of the terminal 1 at the relatively lower position subsequently contacts the fitting 8 to reach the peak insertion force. By processing the housing of the terminal structure to form mounting parts with different heights, the processing is simple, the peak insertion forces are staggered when the fitting is inserted, the insertion force when the fitting is inserted into the terminal is reduced, and the assembly difficulty is reduced.

[0056] On the basis of the above embodiment, the housing has an inner cavity 7, and several mounting parts 6 are symmetrically arranged on both side walls of the inner cavity 7. The mounting bosses 13 on both sides of the terminal 1 are supported on the mounting parts 6.

[0057] Please refer to Figures 6 - 7 and Figure 2 , the housing has an inner cavity 7, the inner cavity 7 has two symmetrical side walls, and a plurality of mounting parts 6 are symmetrically arranged on the two symmetrical side walls of the inner cavity 7. This is based on the fact that the terminal 1 has two mounting bosses 13. One mounting boss 13 at one end corresponds to the mounting part 6 on one side wall, and the mounting boss 13 at the other end corresponds to the mounting part 6 on the other side wall. The reliable support and installation of the mounting bosses on both sides of the terminal 1 are realized through the two mounting parts 6 on the two symmetrical side walls.

[0058] It should be noted that although the terminal 1 is supported in the inner cavity 7, its insertion interface 11 is not enclosed in the cavity. When the mating part 8 is inserted corresponding to the insertion interface 11, the mating part 8 can be pushed along the height direction of the inner cavity of the housing, and the installation of the terminal 1 and the mating part 8 can be completed.

[0059] Based on any of the above embodiments, a limiting part is provided on the side wall of the inner cavity 7, and the limiting part cooperates with the mounting part 6 to limit the movement of the end of the mounting boss 13.

[0060] Please refer to Figure 2 , a limiting part is provided on the side wall of the inner cavity 7. The side wall here is specifically the two symmetrical side walls mentioned above. The limiting part can be the inner wall surface of the side wall or an elastic member provided on the inner wall surface.

[0061] When the limiting part is the inner wall surface of the side wall, the height of the inner wall surface is greater than the height of the mounting part 6. When the mounting boss 13 of the terminal 1 is installed on the mounting part 6, the end of the mounting boss 13 is restricted by the inner wall surface of the side wall, realizing the restriction of the movement of the end of the mounting boss 13. The restriction of the movement here can be to limit a certain movement range or to limit the generation of movement.

[0062] When the limiting part is an elastic member provided on the inner wall surface, when the mounting boss 13 is installed on the mounting part 6, the elastic member will be compressed, and the compressible range of the elastic member is the movable range of the mounting boss 13.

[0063] As a preferred implementation manner, after the mounting boss 13 is installed on the mounting part 6, its end is restricted by the inner wall surface and cannot move.

[0064] Based on any of the above embodiments, the terminal 1 includes a cantilever 12, the mounting boss 13 protrudes outward along the cantilever 12, and there is a gap between the cantilever 12 and the limiting part.

[0065] Please refer to Figure 2 and Figure 4 and Figure 5, terminal 1 includes a cantilever 12, an insertion opening 11 is formed between the cantilevers 12, and the mounting boss 13 is specifically a part protruding outward on the cantilever 12 and is supported on the mounting portion 6. The outward protrusion here is relative to the position of the insertion opening 11, and the mounting boss 13 is relatively more outward.

[0066] There is a gap between the cantilever 12 and the limiting portion. In essence, after the terminal 1 is installed on the mounting portion 6, the cantilever 12 of the terminal 1 can still have a certain amount of elastic return space, which is convenient for installation.

[0067] Based on any of the above embodiments, an opening groove 10 is provided at a position corresponding to the insertion opening 11 on the housing for guiding the insertion and extraction of both the fitting 8 and the insertion opening 11.

[0068] Please refer to Figure 1 , Figure 2 , Figure 4 , the end of the terminal 1 is supported in the inner cavity 7 to form a plurality of insertion openings 11 with a staggered height. Here, the plurality of insertion openings 11 are used to connect with the fitting 8. The insertion openings 11 are not enclosed in the housing. Specifically, an opening groove 10 is provided at a position corresponding to the insertion opening 11 on the housing, and the contact boss 14 of the terminal 1 extends out of the opening groove 10. When connecting the fitting 8 and the insertion opening 11, the fitting 8 can move along the height direction of the opening groove 10 to contact or disengage from the contact boss 14.

[0069] The terminal 1 is entirely wrapped in the housing. The opening groove 10 can be set to a structure with openings at the top and bottom and a closed side. The closed side does not affect the fitting 8 extending into the opening groove 10 to connect with the terminal 1. Here, the opening formed by the closed side is used for the insertion of the fitting 8 in a horizontal state or a vertical state, specifically depending on the size of the opening.

[0070] The opening groove 10 can also be set to be not closed on two sides along the insertion direction, so that the state of the fitting 8 is not restricted when it is inserted into the insertion opening 11.

[0071] The opening groove 10 can also be set to be not closed on one of the two sides along the insertion direction, so that the state of the fitting 8 is not restricted when it is inserted into the insertion opening 11.

[0072] Based on any of the above embodiments, the opening groove 10 is a U-shaped groove, and the opening of the U-shaped groove is for the insertion of the fitting 8.

[0073] Please refer to Figures 6 - 7 , the U-shaped groove means that both sides of the housing along the insertion direction are not closed, so that the state of the fitting 8 is not restricted when it is inserted into the insertion opening 11.

[0074] Based on any of the above embodiments, the housing includes a first housing 2 and a second housing 3 detachably connected thereto, and a plurality of mounting portions 6 are provided on at least one of the first housing 2 and the second housing 3.

[0075] Please refer to Figures 6 - 7 , the housing includes a first housing 2 and a second housing 3 detachably connected thereto, and the two housings can be conveniently disassembled and assembled by snap connection, threaded connection, hoop, etc.

[0076] A plurality of mounting portions 6 are provided on at least one of the first housing 2 and the second housing 3. When a plurality of mounting portions 6 are provided on one of them, the other can cooperate with the mounting portions 6 to limit the mounting boss 13 within the two housings, restricting the movement of the terminal 1 in the up and down directions.

[0077] When a plurality of mounting portions 6 are provided on both the first housing 2 and the second housing 3, this is a more preferred embodiment. The mounting boss 13 is restricted within the housing by the plurality of mounting portions 6 on both the first housing 2 and the second housing 3 to restrict the movement of the terminal 1 in the up and down directions.

[0078] Furthermore, opening grooves 10 are provided at the ends of both the first housing 2 and the second housing 3, and both ends of the terminal 1 are correspondingly supported on the bottom surfaces of the first housing 2 and the second housing 3 to obtain support.

[0079] Based on any of the above embodiments, a hook 31 is provided on either the first housing 2 or the second housing 3, and a clamping portion 21 cooperating with the hook 31 is provided on the other.

[0080] In this embodiment, the hook 31 can be an elastic body and can extend into the clamping portion 21 to form the connection between the first housing 2 and the second housing 3; the hook 31 can also be a non-elastic body and can be clamped with the clamping portion 21 to form the connection between the first housing 2 and the second housing 3.

[0081] Preferably, a plurality of hooks 31 are evenly distributed along the circumference of the housing, and a corresponding plurality of clamping portions 21 are also provided to ensure the reliable connection between the first housing 2 and the second housing 3.

[0082] In addition to the above terminal structure, the present invention also provides a connector including the terminal structure disclosed in the above embodiments. The connector includes the terminal structure described in any of the above embodiments and a mating fitting 8, and the mating fitting 8 is inserted into the insertion port 11. Please refer specifically to Figure 2 、 Figures 10 - 11 .

[0083] Furthermore, the mating fitting 8 is a horizontally arranged copper bar or a vertically arranged copper bar. In this case, there is one insertion port 11 corresponding to the overall terminal structure, and the two side portions of the opening groove 10 along the insertion direction are not closed.

[0084] For the copper bars arranged horizontally and vertically for the fitting 8, in this case, there are two insertion interfaces 11 corresponding to the overall terminal structure, and both side portions of the opening groove 10 along the insertion direction are not closed, as Figure 10 shown.

[0085] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0086] The above has introduced in detail a terminal structure and a connector provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A terminal structure, characterized in that, Comprising: A housing, on which several mounting parts (6) are provided along the length direction of the housing, and at least two of the several mounting parts (6) have different heights; A terminal (1), supported on the mounting part (6) and having an insertion interface (11), and the insertion interface (11) is used for connecting with a mating part (8).

2. The terminal structure according to claim 1, wherein, The housing has an inner cavity (7), and several of the mounting parts (6) are symmetrically arranged on both side walls of the inner cavity (7), and the mounting bosses (13) on both sides of the terminal (1) are supported on the mounting part (6).

3. The terminal structure according to claim 2, characterized in that, A limiting part is provided on the side wall of the inner cavity (7), and the height of the limiting part is greater than the height of the mounting part (6) for restricting the movement of the end of the mounting boss (13).

4. The terminal structure according to claim 3, wherein, The terminal (1) includes a cantilever (12), the mounting boss (13) protrudes outward along the cantilever (12), and there is a gap between the cantilever (12) and the limiting part.

5. The terminal structure according to claim 1, wherein An opening groove (10) is provided at a position corresponding to the insertion interface (11) on the housing for guiding the insertion and extraction of the mating part (8) and the insertion interface (11).

6. The terminal structure according to claim 5, wherein, The opening groove (10) is a U-shaped groove, and the opening of the U-shaped groove is for the insertion of the mating part (8).

7. The terminal structure according to any one of claims 1 to 6, characterized in that, The housing includes a first housing (2) and a second housing (3) detachably connected thereto, and several of the mounting parts (6) are provided on at least one of the first housing (2) and the second housing (3).

8. The terminal structure according to claim 7, characterized in that A hook (31) is provided on any one of the first housing (2) and the second housing (3), and a clamping part (21) cooperating with the hook (31) is provided on the other.

9. A connector, characterized in that, Comprising the terminal structure according to any one of claims 1 to 8, and the mating part (8) is inserted into the insertion interface (11) of the terminal structure.

10. The connector according to claim 9, characterized in that The mating part (8) is a vertically arranged copper bar and / or a horizontally arranged copper bar.

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