Connector

Abstract

The utility model relates to a connector. According to the connector, the cable clamping device is redesigned, so that reliable connection can be established between the cable and the connector. A connector comprises a plug and a socket. The plug comprises a first shell, and the socket comprises a second shell; the first shell and / or the second shell are / is provided with an extension part formed by extending towards the outer side of the wiring end; the plug and / or the socket are / is provided with a cable clamping device close to the wiring end. The cable clamping device comprises a first fixing block, a second fixing block and a fixing assembly, wherein the first fixing block and the second fixing block are used for fixing a cable, and the fixing assembly is used for installing the first fixing block and the second fixing block to the extending part. According to the utility model, the cable clamping device is separated from the shell of the plug socket in function, the shell is changed from a traditional lower bottom and upper cover clamping structure into an integrated structure in which the cable and the wiring terminal can be integrally arranged, and the cable clamping device is used for end sealing, so that the plug socket has the advantages of simple assembly and reliable connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of connectors, especially a kind of plug-in electric connector. BACKGROUND

[0002] In general scenarios, buildings such as houses, commercial buildings or factories provide power sockets, and electrical equipment provides plugs. When using, first insert the plug into the socket, then perform the corresponding operation, and the power supply of the equipment is completed. However, in some specific scenarios, such as the power demand of high-power equipment, separate wiring is usually required to prevent the line from being unable to bear, and in the connection between two devices that require current and signal transmission, the current cable and signal cable are often integrated to avoid the mess of multiple wires. For example, establishing a connection between the carriages of a rail vehicle not only provides power for non-intelligent devices inside the carriage, but also transmits signals to intelligent devices inside the carriage that have communication needs. Such examples also include the connection established when an electric vehicle is charging, which not only provides power for the vehicle's power battery, but also needs to monitor the charging situation in real time and calculate the battery power, charged amount, and full charging time to feedback to the personnel using the charging equipment. There are many such examples. In summary, it is necessary to establish a transmission connection of current and signal between two devices.

[0003] For transmission lines, during use, the cable connected to the connector may be affected by pulling or changes in temperature and other factors, thereby generating a large stress between the cable and the connector. This stress can cause the connection between the cable and the connector to become unreliable or even fail. Therefore, a reliable connection needs to be established between the cable and the connector to withstand the possible pulling. SUMMARY

[0004] The utility model discloses a kind of connectors to solve the above problems, and the connector can establish reliable connection between cable and connector by redesigning cable clamping device.

[0005] The technical scheme for solving the above problems of the utility model is as follows:

[0006] A connector includes a plug and a socket. The plug includes a first connection component and a first housing for mounting the first connection component. The first housing has a plug-in end and a wiring end. The socket includes a second connection component and a second housing for mounting the second connection component. The second housing has a plug-in end and a wiring end. When the plug-in end of the first housing is close to the plug-in end of the second housing, the first connection component is connected to the second connection component. The plug and / or the socket close to the wiring end are provided with a cable clamping device. The first housing and / or the second housing also has an extension formed outside the wiring end. The cable clamping device includes:

[0007] The first fixing block comprises a first fixing part for fixing the cable from the first side;

[0008] The second fixing block comprises a second fixing part for fixing the cable from the second side opposite to the first side;

[0009] The fixing assembly is used for mounting the first fixing block and the second fixing block to the extension part.

[0010] In the above technical solution of the utility model, the cable clamping device arranged close to the plug and / or the socket wiring end has the function of clamping the cable and also has the limiting effect on the connection assembly loaded in the shell, especially on the shell that the connection assembly can have, so that the connection assembly is difficult to be pulled out from the wiring end.

[0011] In the above technical solution of the utility model, the extension part extends to the outside of the wiring end, that is, the first shell or the second shell extends to the two side surfaces thereof in the direction away from the shell. Therefore, the extension part can be formed by the first shell or the second shell itself or can be fixed on the first shell or the second shell by buckling, insertion or screwing and the like.

[0012] In the above technical solution of the utility model, the cable clamping device is connected with the first shell or the second shell through the extension part. This design separates the cable clamping device from the shell in terms of function, so that the shell returns to the basic properties of physical protection, insulation protection and installation provision. The clamping function is separated from the shell and then is designed specifically, so that the clamping capacity of the shell can be significantly improved without major structural adjustment of the shell.

[0013] According to the connector of at least one example, the fixing assembly is a combination of a bolt and a nut.

[0014] According to the connector of at least one example, a handle is arranged on the plug and / or the socket, and the handle is arranged on the extension part.

[0015] According to the connector of at least one example, the first shell and / or the second shell further has a plug end extension part extending to the outside of the plug end.

[0016] According to the connector of at least one example, the handle comprises a fixing part and a holding part, the first end of the fixing part is connected with the extension part, and the second end is connected with the plug end extension part.

[0017] According to the connector of at least one example, the first fixing block is arranged above the extension part and the first fixing part is arranged downward, the second fixing block is arranged below the extension part and the second fixing part is arranged upward, and the first fixing part and the second fixing part fix the cable from top to bottom.

[0018] According to the connector of at least one example, the extension part comprises a boss extending to both sides of the first shell and / or the second shell and a boss plate extending from the boss to the side of the terminal.

[0019] According to the connector of at least one example, the first shell and / or the second shell further has a terminal boss plate formed in the direction away from the plug-in end.

[0020] In the above technical solution of the utility model, the terminal boss plate is located in the middle of the two extension parts, providing a mounting position for the cable clamping device other than the extension part, thereby further improving the connection strength of the cable clamping device and the shell. However, this design, while having the above advantages, also requires avoiding design of the cable clamping device, connection assembly or shell, etc. to avoid affecting installation, unless the size of the connector is large enough. Therefore, this design is selected. Without the terminal boss plate, sufficient connection strength can be provided under the general size of the connector.

[0021] According to the connector of at least one example, the first fixing part is a first half hole, the second fixing part is a second half hole, the first half hole and the second half hole are connected to form a clamping hole for fixing the cable, and an elastic fixing member is arranged in the clamping hole.

[0022] In the above technical solution of the utility model, as an elastic fixing member, the material selection is relatively wide, and rubber, silicone rubber, thermoplastic elastomer or even plastic with a relatively low glass transition temperature can be used.

[0023] According to the connector of at least one example, an annular limiting groove is arranged in the clamping hole, and an annular limiting protrusion is arranged on the elastic fixing member and can cooperate with the annular limiting groove.

[0024] In the above technical solution of the utility model, the design of the annular limiting groove and the annular limiting protrusion can ensure that the elastic fixing member is firmly fixed in the first fixing part or the half hole of the first fixing part.

[0025] According to the connector of at least one example, the elastic fixing member comprises a first elastic fixing part and a second elastic fixing part used in pairs, and the first elastic fixing part and the second elastic fixing part are adapted to the first half hole and the second half hole, respectively.

[0026] The elastic fixing part of the split type design has higher convenience in use, otherwise the elastic fixing part needs to be sleeved on the cable first.

[0027] According to the connector of at least one example, the elastic fixing part is provided with multiple groups, each group having different inner diameter sizes to adapt to cables with different outer diameters; or the elastic fixing part can automatically adjust the inner diameter size to adapt to cables with different outer diameters.

[0028] In the technical solution, in order to adapt to cables with different outer diameters, the specification of the elastic fixing part can be replaced without changing the first or second fixing block. Meanwhile, when the elastic fixing part has a larger elastic expansion amount, it can correct the effective contact inner diameter in the clamping state through elastic deformation. For example, when a cable with a larger outer diameter is clamped, the deformation amount of the elastic fixing part is larger; when a cable with a smaller outer diameter is clamped, the deformation amount of the elastic fixing part is smaller, but sufficient static friction can still be provided. This is related to the material selection of the elastic fixing part. For example, if a plastic with a lower glass transition temperature is used, multiple specifications of the elastic fixing part may need to be provided, and if a softer rubber or silicone is used, the elastic fixing part can automatically adjust the inner diameter size when facing cables with different outer diameters.

[0029] According to the connector of at least one example, the boss plate is provided with a through hole, the first fixing block and the second fixing block are each provided with a fixing hole corresponding to the position of the through hole, and the fixing assembly passes through the first fixing block, the boss plate and the second fixing block in sequence to fix the first fixing block, the boss plate and the second fixing block together.

[0030] According to the connector of at least one example, the first fixing block and the second fixing block are each further provided with a second fixing hole not corresponding to the through hole on the boss plate, and a second fixing assembly passes through the second fixing hole to further fix the first fixing block and the second fixing block.

[0031] According to the connector of at least one example, the plug and / or the socket further include a handle, the handle includes a fixed part and a gripping part, the fixed part is detachably mounted on the boss, and the gripping part extends away from the wiring end from the boss.

[0032] According to the connector of at least one example, the plug and / or the socket further have a plug end extension formed outside the plug end; a first end of the fixed part is detachably mounted on the boss, and a second end is detachably mounted on the plug end extension.

[0033] According to the connector of at least one example, the first connection assembly includes a current pin module and a signal pin module; the second connection assembly includes a current socket module configured to mate with the current pin module and a signal socket module configured to mate with the signal pin module.

[0034] According to the connector of at least one example, the current pin module includes a current pin, and the current socket module includes a current socket, the current pin is provided with a first clamping groove in a circumferential direction, and the current socket is provided with a second clamping groove in a circumferential direction.

[0035] The first shell is provided with a first accommodating groove for inserting a first clamping piece.

[0036] The second shell is provided with a second accommodating groove for inserting a second clamping piece.

[0037] When the current pin module is installed in the first shell, the first clamping groove is positionally opposite to the first accommodating groove, so that the first clamping piece is mated with the first clamping groove.

[0038] When the current socket module is installed in the second shell, the second clamping groove is positionally opposite to the second accommodating groove, so that the second clamping piece is mated with the second clamping groove.

[0039] In a first direction towards the plug-in end, the current pin and the current socket are limited by the shell, and in a second direction towards the wiring end, the current pin and the current socket are packaged by the cable clamping device, so as to be substantially fixed, but still capable of small displacement activities in the limited space. In the above technical solution of the utility model, the cooperation of the first clamping piece and the first clamping groove further fixes the current pin in the second direction to avoid small displacement activities in the limited space; similarly, under the action of the second clamping piece and the second clamping groove, the current socket is also further fixed in the second direction.

[0040] In the above technical solution of the utility model, the shells of the current pin and the current socket are integrated with the first shell and the second shell, which is conducive to simplifying the product structure, and is also based on the consideration of the use scene. It is usually not applied in an exposed environment, so there is no special requirement for waterproofness.

[0041] According to the connector of at least one example, the signal pin module includes a signal pin and a signal pin shell for mounting the signal pin,

[0042] The signal pin shell is provided with a limiting step at one end close to the wiring end,

[0043] The signal pin shell is provided with a limiting flange close to the limiting step to prevent the signal pin shell from being pulled out of the plug-in end of the first shell.

[0044] The first shell is provided with a third accommodating slot for inserting a third clasp;

[0045] When the signal pin module is installed in the first shell, the limiting step is opposite to the third accommodating slot in position, so that the third clasp is connected with the limiting step.

[0046] Unlike the current connection, the signal connection is usually a multi-stranded core wire, so a reasonable response is to assemble them together, therefore, unlike the current connection, the signal connection module is also provided with a shell, such as a signal pin shell and a signal socket shell.

[0047] In the first direction towards the plug-in end, the signal pin shell is limited by the first shell, and in the second direction towards the wiring end, it is packaged by the cable clamping device, so it can be basically fixed, but it can still move a small displacement amount within the limited space.

[0048] According to the connector of at least one example, the signal pin module further comprises a first clasp with a first elastic wing and a first body sleeve;

[0049] In the first direction towards the plug-in end, the signal pin shell is provided with a second step inside; in the second direction towards the wiring end, the signal pin shell is provided with a first step inside;

[0050] The outer peripheral surface of the signal pin is provided with a first protrusion and a second protrusion;

[0051] The first protrusion is limited and matched with the first step, so as to limit the signal pin and prevent it from coming out of the plug-in end;

[0052] The second protrusion is limited and matched with the first body sleeve, so as to limit the first clasp and prevent it from coming out of the plug-in end;

[0053] The first elastic wing is limited and matched with the second step, so as to limit the signal pin and prevent it from retreating towards the wiring end.

[0054] The above-mentioned arrangement of the utility model not only can make the signal pin conveniently inserted into the signal pin shell, but also can prevent the signal pin from coming out of the signal pin shell.

[0055] According to the connector of at least one example, the signal socket module comprises a signal socket and a signal socket housing for mounting the signal socket,

[0056] The signal socket housing is provided with a third clamping groove;

[0057] The second housing is provided with a fourth accommodating groove for inserting a fourth clamping piece;

[0058] When the signal socket module is mounted in the second housing, the third clamping groove is opposite to the fourth accommodating groove in position, so that the fourth clamping piece is connected with the third clamping groove.

[0059] In the first direction towards the plug-in end, the signal socket housing is limited by the second housing, and in the second direction towards the wiring end, it is packaged by the clamping cable device, so it can be basically fixed, but it can still move a small displacement amount within the limited space. In the above technical solution of the utility model, the cooperation of the fourth clamping piece and the third clamping groove further limits the signal socket housing in the second direction to avoid the small displacement amount within the limited space.

[0060] According to the connector of at least one example, the signal socket module further comprises a second buckle having a second elastic wing and a second body sleeve;

[0061] In the first direction towards the plug-in end, the signal socket housing is provided with a fourth step inside; in the second direction towards the wiring end, the signal socket housing is provided with a third step inside;

[0062] The outer peripheral surface of the signal socket is provided with a third protrusion and a fourth protrusion;

[0063] The third protrusion is limitedly matched with the third step to limit the signal socket and avoid it from being pulled out from the plug-in end;

[0064] The fourth protrusion is limitedly matched with the second body sleeve to limit the second buckle and avoid it from being pulled out from the plug-in end;

[0065] The second elastic wing is limitedly matched with the fourth step to limit the signal socket and avoid it from being pulled out from the plug-in end.

[0066] According to the connector of at least one example, the plug-in end of the plug is provided with a first coding pin, and the plug-in end of the socket is provided with a second coding pin, the first coding pin is matched with the second coding pin for plug-in;

[0067] The current pin module and the current socket module are each provided with two, the first coding pin is located between the two current pin modules, and the second coding pin is located between the two current socket modules; or,

[0068] The current pin module, the current socket module, the signal pin module and the signal socket module are each provided with one, the first coding pin is located between the current pin module and the signal pin module, and the second coding pin is located between the current socket module and the signal socket module.

[0069] In the technical scheme, the pairing design of the first coding pin and the second coding pin is a foolproof design to avoid misplug.

[0070] In the technical scheme, two current pins can be assembled together to form a current pin module, and correspondingly, two current sockets can be assembled together to form a current socket module, so that a set of current modules can be used to realize current transmission. Of course, if this is done, insulation needs to be done well, but this is easy for those skilled in the art. In this case, the coding pin, the current module and the signal module can be randomly arranged, such as arranging the coding pin between the current module and the signal module, arranging the signal module between the coding pin and the current module, or arranging the current module between the coding pin and the signal module. Preferably, the coding pin is arranged between the current module and the signal module.

[0071] According to the connector of at least one example, the first coding pin and the second coding pin each include a fixed end, a stop end and a matching plug end, the fixed end is used to fix the first coding pin and the second coding pin on the plug end of the plug and the socket respectively, the stop end is used to limit the plug depth of the coding pin matched therewith, and the matching plug end is used to match the coding pin with a matching shape.

[0072] According to the connector of at least one example, the connector further includes a locking device arranged close to the plug end of the plug and the plug end of the socket; the locking device includes a first half seat fixed on the first shell and a second half seat fixed on the second shell to match and connect the first half seat.

[0073] In the technical scheme, in order to further ensure the connection of the plug and the socket, the locking device is needed to lock the plug and the socket in their working state.

[0074] According to the connector of at least one example, the first half seat is provided with a first type hole and a second type hole, the second half seat is provided with a first type hole and a second type hole, the first type hole on the first half seat and the second type hole on the second half seat are matched to form a first locking hole group, and the second type hole on the first half seat and the first type hole on the second half seat are matched to form a second locking hole group; the locking piece is selectively inserted into the first locking hole group or the second locking hole group.

[0075] When locking the plug and the socket, considering the actual application scene, the situation that one side is convenient to insert and the other side is not convenient to insert can occur, and the side convenient to insert and the side not convenient to insert can be changed in different application environments. Therefore, in the technical scheme of the utility model, the setting directions of the first locking hole group and the second locking hole group are opposite, so that all application scenes can be considered, and the locking piece is selectively inserted into the first locking hole group or the second locking hole group.

[0076] In summary, the utility model has the following beneficial effects:

[0077] 1、 the utility model discloses a cable clamping device and the shell of plug and socket are separated in function, the shell is changed from the traditional lower bottom upper cover clamping structure to the integrated structure that can install the cable and its terminal as a whole, and the end is sealed with the cable clamping device, which has the advantages of simple assembly and reliable connection.

[0078] 2、 the utility model discloses that the cable clamping device is separated from the shell, and the cable clamping device is installed on the extension of the shell, and the cable clamping device is designed specifically, which significantly improves the clamping effect of the cable.

[0079] 3、 the utility model discloses that the current pin and signal pin shell are limited in the first direction by plug shell, and are limited in the second direction by clip, and the current socket and signal socket shell are limited in the first direction by socket shell, and are limited in the second direction by clip, which realizes the effective fixation of them and guarantees the stable transmission of current and signal.

[0080] 4、 in order to further ensure the connection of plug and socket, the utility model discloses that locking device is used to lock plug and socket in their working state, and the setting directions of the first locking hole group and the second locking hole group of the locking device are opposite, and the locking piece is selectively inserted into the first locking hole group or the second locking hole group, so that all application scenes can be considered. BRIEF DESCRIPTION OF DRAWINGS

[0081] Figure 1 It is the view of the connector of the utility model embodiment 1 in the connection state.

[0082] Figure 2 It is the view of the plug of the utility model embodiment 1 when the bottom is upward.

[0083] Figure 3 It is the view of the socket of the utility model embodiment 1 when the bottom is upward.

[0084] Figure 4 It is the explosion decomposition diagram of the cable clamping device of the utility model embodiment 1.

[0085] Figure 5 is the current plug pin and the first shell assembly state section view of the embodiment 1 of the utility model Figure 1 ;

[0086] Figure 6 is the current plug pin and the first shell assembly state section view of the embodiment 1 of the utility model Figure 2 (with Figure 5 section direction vertical);

[0087] Figure 7 is the current socket and the second shell assembly state section view of the embodiment 1 of the utility model Figure 1 ;

[0088] Figure 8 is the current socket and the second shell assembly state section view of the embodiment 1 of the utility model Figure 2 (with Figure 7 section direction vertical);

[0089] Figure 9 is the signal plug pin module section view of the embodiment 1 of the utility model;

[0090] Figure 10 is the signal socket module section view of the embodiment 1 of the utility model;

[0091] Figure 11 is the structure schematic diagram of the coding pin of the utility model;

[0092] The component name represented by each mark in the figure is as follows:

[0093] 1, plug,

[0094] 2, socket,

[0095] 3, cable clamping device,

[0096] 4, handle,

[0097] 5, card subassembly,

[0098] 6, locking device,

[0099] 11, first shell,

[0100] 12, current plug pin module,

[0101] 13, signal plug pin module,

[0102] 14, first coding pin,

[0103] 21, second shell,

[0104] 22, current socket module,

[0105] 23, signal socket module,

[0106] 24. Second coding pin,

[0107] 31. Boss plate,

[0108] 32. First fixed block,

[0109] 33. Second fixed block,

[0110] 34. Flexible fasteners,

[0111] 35. Fixing components

[0112] 41. Fixing part,

[0113] 42. Holding part,

[0114] 51. The first clip,

[0115] 52. The second clip,

[0116] 53. The third card,

[0117] 54. The fourth card,

[0118] 61. The first half seat,

[0119] 62. The second half of the seat,

[0120] 111. First receiving slot,

[0121] 112. Third receiving slot,

[0122] 113. (On the first housing) extension,

[0123] 114. Plug-in extension,

[0124] 121. Current pin,

[0125] 131. Signal pins,

[0126] 132. Signal pin housing,

[0127] 133. First buckle,

[0128] 141. Fixed end,

[0129] 142. Stop end,

[0130] 143. Matching the plug-in terminals,

[0131] 211. Second receiving slot,

[0132] 212. Fourth receiving slot,

[0133] 213. (On the second housing) extension,

[0134] 214, plug end extension,

[0135] 221, current socket,

[0136] 231, signal socket,

[0137] 232, signal socket housing,

[0138] 233, second buckle,

[0139] 241, fixed end,

[0140] 242, stop end,

[0141] 243, mating plug end,

[0142] 311, through hole,

[0143] 321, first fixing part,

[0144] 331, second fixing part,

[0145] 341, annular limiting protrusion,

[0146] 611, first type hole (on the first half seat),

[0147] 612, second type hole (on the first half seat),

[0148] 621, first type hole (on the second half seat),

[0149] 622, second type hole (on the second half seat),

[0150] 1131, boss (on the first housing),

[0151] 1211, first clamping groove,

[0152] 1311, first protrusion,

[0153] 1312, second protrusion,

[0154] 1321, limiting step,

[0155] 1322, limiting flange,

[0156] 1323, first step,

[0157] 1324, second step,

[0158] 1331, first body collar,

[0159] 1332, first elastic wing,

[0160] 2311, second protrusion,

[0161] 2131. (On the second shell) boss,

[0162] 2211, Second card slot,

[0163] 2311. The third protrusion.

[0164] 2312, Fourth protrusion,

[0165] 2321. Third card slot.

[0166] 2322, Limiting flange,

[0167] 2323, The Third Step

[0168] 2324, The Fourth Step

[0169] 2331. Second body ring,

[0170] 2332. Second elastic winglet,

[0171] 3211. (On the first fixing part) Annular limiting groove,

[0172] 3311. (On the second fixing part) Annular limiting groove. Detailed Implementation

[0173] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0174] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the meanings commonly understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. Example

[0175] A connector, such as Figure 1 is shown, comprising a plug 1 and a socket 2. Figure 1 The plug 1 and the socket 2 in the plugged state are shown. Figure 1 It can also be seen from the figure that the two ends of the plug 1 and the socket 2, i.e. their wiring ends, are provided with cable clamping devices 3. The upper parts of the plug 1 and the socket 2 are provided with locking devices 6 to facilitate locking of the plug 1 and the socket 2 when they are plugged. It can also be seen that the plug 1 is provided with a handle 4. The handle 4 has a fixing part 41 and a gripping part 42. The fixing part 41 fixes the handle 4 to the shell of the plug 1. Of course, the handle 4 can also be fixed to the shell of the socket 1, or both the shell of the plug 1 and the shell of the socket 1 can be provided with the handle 4, which is set according to actual needs.

[0176] Figure 2 The specific structure of the plug 1 is shown, in order to more clearly understand the plug 1, Figure 2 The bottom of the plug 1 is intentionally drawn upward, in order to facilitate the display of the bottom structure of the plug 1.

[0177] As shown in Figure 2 , the plug 1 has a first shell 11, two current pin modules 12 and a signal pin module 13 are installed in the first shell 11, and the signal pin module 13 is arranged between the two current pin modules 12. The front ends of the current pin modules 12 and the signal pin module 13 all extend out of the plug-in end of the first shell 11. In Figure 2 , the lower part of the signal pin module 13 is provided with a first coding pin 14, which extends from the end face of the plug-in end of the first shell 11 in the plug-in direction, and the first coding pin 14 is located between the two current pin modules 12. From Figure 2 , it can be seen that the shape of the first coding pin 14 is a lower half (inverted isosceles trapezoid) of a column with a hexagonal cross section. Therefore, the coding pin matched therewith can be a column with a hexagonal cross section of the same size, which is an upper half (right isosceles trapezoid). In Figure 2 , a first half seat 61 is arranged below the first coding pin 14, and in Figure 1 , the first half seat 61 is specifically arranged on the upper surface of the first shell 11, i.e. the first half seat 61 is formed by the first shell 11 extending upward, and at the same time, the front end face of the first half seat 61 is coplanar with the end face of the plug-in end of the first shell 11. The actual front end face of the first half seat 61 can be as long as it does not exceed the end face of the plug-in end of the first shell 11, and of course, coplanar is more preferred.

[0178] The structures of the first coding pin 14 and the second coding pin 24 are shown in Figure 11As shown, the first coding pin 14 comprises a fixing end 141, a stop end 142 and a mating plug-in end 143, the fixing end 141 is used to fix the first coding pin 14 on the plug-in end of the plug, the stop end 142 is used to limit the plug-in depth of the mating coding pin, and the mating plug-in end 143 is used to cooperate with the shape-matched coding pin (i.e. the second coding pin 24 in this embodiment). As shown in Figure 11 As shown, the second coding pin 24 comprises a fixing end 241, a stop end 242 and a mating plug-in end 243, each part has the same function as the first coding pin.

[0179] Correspondingly, Figure 3 The bottom of the socket 1 is also intentionally arranged upward to facilitate the display of the bottom structure of the socket 2.

[0180] As shown in Figure 3 The socket 2 has a second housing 21, two current socket modules 22 and one signal socket module 23 are installed in the second housing 21, and the signal socket module 23 is arranged between the two current socket modules 22. The front ends of the current socket modules 22 and the signal socket module 23 are substantially flush with the plug-in end of the second housing 21.

[0181] In Figure 3 , the lower part of the signal socket module 23 is provided with a second coding pin 24, the second coding pin 24 extends from the end face of the plug-in end of the second housing 21 in the plug-in direction, and the second coding pin 24 is located between the two current socket modules 22. As can be seen from Figure 3 , the shape of the second coding pin 24 is a cylindrical upper half part (a right isosceles trapezoid) with a hexagonal cross section. Therefore, the mating coding pin can be a cylindrical lower half part (an inverted isosceles trapezoid) with a hexagonal cross section of the same size. This inference is consistent with the case described above. In Figure 3 , a second half seat 52 is arranged below the second coding pin 24, and in Figure 1 , the second half seat 62 is specifically arranged on the upper surface of the second housing 21, that is, the second half seat 62 is formed by the second housing 21 extending upward, and at the same time, the front end face of the second half seat 62 is coplanar with the end face of the plug-in end of the second housing 21. The front end face of the actual second half seat 62 can be as long as it does not exceed the end face of the plug-in end of the second housing 21, and of course, coplanar is more preferred. The first half seat 61 and the second half seat 62 are connected to form the locking device 6.

[0182] From Figure 2 and Figure 3It can be seen that the first half seat 61 is provided with a first type hole 611 and a second type hole 612, and the second half seat 62 is provided with a first type hole 621 and a second type hole 622, the first type hole 611 on the first half seat 61 and the second type hole 622 on the second half seat 62 are matched to form a first locking hole group, and the second type hole 612 on the first half seat 61 and the first type hole 621 on the second half seat 62 are matched to form a second locking hole group; therefore, the locking member can be selectively inserted into the first locking hole group or the second locking hole group. The above-mentioned first type hole and second type hole are for the locking member of the bolt and nut, because the nut is usually hexagonal, and the end of the bolt is circular. Therefore, among the first type hole and the second type hole, one is a hexagonal hole, and the other is a circular hole, so that when the nut is placed in the corresponding hexagonal hole, only the bolt is turned to lock, and the nut cannot be turned to lock. The setting direction of the first locking hole group and the second locking hole group is opposite, so that all application scenarios can be considered, and the locking member can be selectively inserted into the first locking hole group or the second locking hole group.

[0183] Figure 4 It is an exploded view of the cable clamping device 3. From Figure 1 It can be seen that the cable clamping device 3 is installed at the terminal of the plug 1. Since the structure of the plug 1 and the socket 2 at this place is completely the same, this embodiment only describes the cable clamping device 3 at the plug 1, which does not mean that the terminal of the socket 2 does not have a cable clamping device. Of course, the cable clamping device can also be arranged only on the shell of the socket 1 or only on the shell of the plug 1, and can be arranged according to actual needs.

[0184] As Figure 4 shown, the cable clamping device 3 includes a first fixed block 32, a second fixed block 33, an elastic fixing member 34 and a fixing assembly 35. The cable clamping device 3 is installed on the boss plate 31, the boss plate 31 is extended from the boss 1131 to the terminal side, and the boss 1131 is extended from the first shell 11 to the two sides of the shell to form the boss 1131 and the boss plate 31 together to form the extension 113. At the same time, considering the installation of the handrail 4, the first shell 11 is extended to the two sides of the shell to form the extension 114 of the plug-in end at the position close to the plug-in end. Therefore, combined with Figure 1 and Figure 4The fixed part 41 of the handrail 4 is connected to the boss of the extension part 1131 at one end and to the insertion end extension part 114 at the other end. After the boss plate 31 is provided by the boss 1131, the installation of the cable clamping device 3 is easy. It can be understood that according to the different positions of the cable clamping device, the boss 1131 or the extension part 113 can also be formed by the extension of the second shell 21 to the two sides of the shell. The first fixed block 32 has a first fixed part 321 composed of three first half holes arranged downward, among which the one arranged in the middle is slightly smaller and is used for the signal cable, and the two arranged on the sides are slightly larger and are used for the power cable. Correspondingly, the second fixed block 33 has a second fixed part 331 composed of three second half holes arranged upward. The first half hole and the second half hole are connected to form a clamping hole for fixing the cable. The first half hole constituting the clamping hole is provided with an annular limiting groove 3211, and the second half hole constituting the clamping hole is provided with an annular limiting groove 3311. The elastic fixing part 34 is provided with an annular limiting protrusion 341 matched with the annular limiting groove; and the elastic fixing part 34 is split, one half is arranged in the first half hole, and the other half is arranged in the second half hole. That is, the elastic fixing part 34 includes a first elastic fixing part and a second elastic fixing part used in pairs, and the first elastic fixing part and the second elastic fixing part are matched with the first half hole and the second half hole respectively.

[0185] In this embodiment, the elastic fixing part 34 is made of rubber and has a large elastic deformation amount. Therefore, the elastic fixing part 34 can realize the fixation of cables with different outer diameters in the case of only one type. When the cable outer diameter is large, the elastic deformation amount of the elastic fixing part 34 is large, and when the cable outer diameter is small, the elastic deformation amount of the elastic fixing part 34 is small, but whether the deformation amount is large or small, it can provide sufficient static friction. That is, the elastic fixing part can automatically adjust the inner diameter size to adapt to cables with different outer diameters.

[0186] Therefore, the installation process of the cable clamping device 3 is as follows:

[0187] 1. First, place the second elastic fixing part in the second half hole so that the annular limiting protrusion 341 matches the annular limiting groove 3311;

[0188] 2. Pre-fix the second fixed block 33 below the boss plate 31;

[0189] 3. Pass the cable through the second elastic fixing part;

[0190] 4. Place the first elastic fixing part in the first half hole so that the annular limiting protrusion 341 matches the annular limiting groove 3211;

[0191] 5. The first fixing block 32 is pressed on the second fixing block 33 through the boss plate 31, and the cable is clamped between the first and second elastic fixing parts;

[0192] 6. The bolt (a component of the fixing assembly 35) is passed through the aligned through holes of the second fixing block 33, the boss plate 31 and the first fixing block 32 in sequence;

[0193] 7. The nut (a component of the fixing assembly 35) is put into the through hole of the first fixing block 32 and is aligned with the bolt;

[0194] 8. The bolt is tightened.

[0195] Through the above operations, the first and second fixing blocks 32 and 33 are installed to the extension part 113 through the fixing assembly 35. It can be understood that the fixing assembly 35 is a bolt with external threads, and the through holes of the first and second fixing blocks are provided with internal threads matched with the external threads of the bolt, so that the first and second fixing blocks can be installed to the extension part only by tightening the bolt.

[0196] Of course, before the installation of the cable clamping device 3, the current pin module 12 and the signal pin module 13 need to be installed in the first housing 11, and the current socket module 22 and the signal socket module 23 need to be installed in the second housing 21. In this embodiment, the housing of the current pin module 12 is integral with the first housing 11, that is, the first housing 11 forms the housing structure of the current pin 121. The housing of the current socket module 22 is integral with the second housing 21, that is, the second housing 21 forms the housing structure of the current socket 221. Therefore, the current pin 121 with wires can be directly installed into the first housing 11, and the current socket 221 with wires can be directly installed into the second housing 21. When installing the signal pin module 13 and the signal socket module 23, the signal pin 131 and the signal socket 231 need to be wired respectively, and then they are respectively installed into the signal pin housing 132 and the signal socket housing 232; then the signal pin module 13 and the signal socket module 23 with wires are respectively installed into the first housing 11 and the second housing 21; finally, the cable is fixed, that is, the cable clamping device is installed.

[0197] The structural relationship between the current pin 12 and the first housing 11 is shown in Figure 5 and Figure 6As shown, the current pin 121 is circumferentially provided with a first clamping slot 1211, and the first shell 11 is provided with a first accommodating slot 111 for inserting the first clamping piece 51; when the current pin 121 is installed in the first shell 11, the first clamping slot 1211 is opposite to the first accommodating slot 111. Therefore, when the first clamping piece 51 is inserted into the first accommodating slot 111, it can be further inserted into the first clamping slot 1211, so as to further fix the current pin 121. Similarly, as shown, Figure 7 and Figure 8 As shown, the current socket 221 is circumferentially provided with a second clamping slot 2211, and the second shell 21 is provided with a second accommodating slot 211 for inserting the second clamping piece 52; when the current socket 221 is installed in the second shell 21, the second clamping slot 2211 is opposite to the second accommodating slot 211. Therefore, when the second clamping piece 52 is inserted into the second accommodating slot 211, it can be further inserted into the second clamping slot 2211, so as to further fix the current socket 221.

[0198] The structure of the signal pin module 13 is shown in Figure 9 As shown, the signal pin module 13 includes a signal pin 131, a signal pin shell 132, and a first clamping piece 133. The signal pin shell 132 is provided with a limiting step 1321 near one end of the terminal, a limiting flange 1322 near the limiting step 1321, and a first step 1323 and a second step 1324 inside. The signal pin 131 has a terminal end and a plug-in end, and is provided with a first protrusion 1311 and a second protrusion 1312. The first protrusion 1311 is limited in cooperation with the first step 1323 in the first direction, so as to prevent the signal pin 131 from being pulled out from the plug-in end. The first clamping piece 133 has a first body sleeve 1331 and a first elastic wing 1332. The first body sleeve 1331 is limited in cooperation with the second protrusion 1312, so as to prevent the first clamping piece 133 from being pulled out from the plug-in end. The first elastic wing 1332 is limited in cooperation with the second step 1324, so as to prevent the signal pin 131 from being pulled back to the terminal end. The first direction is the direction towards the plug-in end, and the second direction is the direction towards the terminal end.

[0199] The structure diagram of the signal pin module 13 and the first shell 11 is shown in Figure 9 As shown, the limiting flange 1322 prevents the signal pin shell 132 from being pulled out from the plug-in end of the first shell 11; and the limiting step 1321 is provided for inserting the third clamping piece 53, so as to prevent the signal pin shell 132 from being pulled back to the terminal end of the first shell 11.

[0200] The structure of the signal socket module 23 is shown in Figure 10As shown, the signal socket module 23 comprises a signal socket 231, a signal socket shell 232 and a second buckle 233. The signal socket shell 232 is provided with a third clamping groove 2321 on the circumference, is provided with a limiting flange 2322 near one end of the wiring end, and is internally provided with a third step 2323 and a fourth step 2324. The signal socket 231 is provided with a wiring end and a plug-in end on one end, and is provided with a third protrusion 2311 and a fourth protrusion 2312 on the circumference. The third protrusion 2311 is in limiting cooperation with the third step 2323 in a first direction, so as to prevent the signal socket 231 from being pulled out from the plug-in end. The second buckle 233 has a second body sleeve ring 2331 and a second elastic wing 2332. The second body sleeve ring 2331 is in limiting cooperation with the fourth protrusion 2312 at the end, so as to prevent the second buckle 233 from being pulled out from the plug-in end. The second elastic wing 2332 is in limiting cooperation with the fourth step 2324 at the end, so as to prevent the signal socket 231 from being pulled back to the wiring end. The first direction is a direction towards the plug-in end, and the second direction is a direction towards the wiring end.

[0201] The structure diagram of the signal socket module 23 and the second shell 21 is as shown in Figure 10 The limiting flange 2322 prevents the signal socket shell 232 from being pulled out from the plug-in end of the second shell 21, and the third clamping groove 2321 is provided for the fourth buckle 54 to be inserted, so as to prevent the signal socket shell 232 from being pulled back to the wiring end of the second shell 21.

[0202] The buckle assembly 5 comprises the first buckle 51, the second buckle 52, the third buckle 53 and the fourth buckle, as shown in Figure 2 and 3 The first buckle 51 is used for clamping the current pin 121 and is in cooperation with the first shell 11 to limit the current pin 121 in the second direction; the second buckle 52 is used for clamping the current socket 221 and is in cooperation with the second shell 21 to limit the current socket 221 in the second direction; the third buckle 53 is used for clamping the signal pin shell 132 and is in cooperation with the first shell 11 to limit the signal pin shell 132 in the second direction; and the fourth buckle 54 is used for clamping the signal socket shell 232 and is in cooperation with the second shell 21 to limit the signal socket shell 232 in the second direction.

[0203] The tail of the cable and the current pin 121 or the current socket 221 are connected by pressure welding or welding, and the tail of the cable and the signal pin 131 or the signal socket 231 are connected by pressure welding or welding. Embodiment

[0204] The difference between the embodiment 1 and the embodiment 2 is that the current pin module 12 comprises a current pin 121 and a current pin shell. In the first direction towards the plug end, the current pin shell is limited by the first shell 11, and in the second direction towards the wiring end, the current pin shell is limited by the first clip 51.

[0205] The current socket module 22 comprises a current socket 221 and a current socket shell. In the first direction towards the plug end, the current socket shell is limited by the second shell 21, and in the second direction towards the wiring end, the current socket shell is limited by the second clip 52. Embodiment

[0206] The difference between the embodiment 1 and the embodiment 2 is that the current pin module 12 comprises a current pin 121 and a current pin shell. In the first direction towards the plug end, the current pin shell is limited by the first shell 11, and in the second direction towards the wiring end, the current pin shell is limited by the first clip 51. Embodiment

[0207] The difference between the embodiment 1 and the embodiment 2 is that the current pin module 12 comprises a current pin 121 and a current pin shell. In the first direction towards the plug end, the current pin shell is limited by the first shell 11, and in the second direction towards the wiring end, the current pin shell is limited by the first clip 51. Embodiment

[0208] The difference between the embodiment 1 and the embodiment 2 is that the current pin module 12 comprises a current pin 121 and a current pin shell. In the first direction towards the plug end, the current pin shell is limited by the first shell 11, and in the second direction towards the wiring end, the current pin shell is limited by the first clip 51.

[0209] In terms of arrangement, the first coding pin 14 is located between the current pin module 12 and the signal pin module 13; the second coding pin 24 is located between the current socket module 22 and the signal socket module 23.

Claims

1. A connector comprising a plug (1) and a socket (2); the plug (1) comprises a first connecting assembly and a first housing (11) for mounting the first connecting assembly, the first housing (11) having a plug-in end and a wiring end; the socket (2) comprises a second connecting assembly and a second housing (21) for mounting the second connecting assembly, the second housing (21) having a plug-in end and a wiring end; the first connecting assembly and the second connecting assembly are plug-in connected when the plug-in end of the first housing and the plug-in end of the second housing are close to each other; the plug (1) and / or the socket (2) are further provided with a cable clamping device (3) close to the wiring end; characterized in that the first housing (11) and / or the second housing (21) further have an extension (113, 213) extending outward from the wiring end; the cable clamping device (3) comprises: a first fixing block (32) comprising a first fixing part (321) for fixing a cable from a first side; a second fixing block (33) comprising a second fixing part (331) for fixing a cable from a second side opposite to the first side; a fixing assembly (35) for mounting the first fixing block (32) and the second fixing block (33) to the extension (113, 213).

2. A connector according to claim 1, wherein: The first fixing block (32) is arranged above the extension (113, 213) with the first fixing part (321) arranged downward, and the second fixing block (33) is arranged below the extension (113, 213) with the second fixing part (331) arranged upward, the first fixing part (321) and the second fixing part (331) fixing the cable from top to bottom.

3. The connector of claim 1, wherein: The extension comprises a boss (1131, 2131) extending to both sides of the first housing (11) and / or the second housing (21) and a boss plate (31) extending from the boss (1131, 2131) to the side of the wiring end.

4. A connector according to any one of claims 1 to 3, wherein: The first fixing part (321) is a first half hole, and the second fixing part (331) is a second half hole, the first half hole and the second half hole are connected to form a clamping hole for fixing the cable, and the clamping hole is provided with an elastic fixing part (34).

5. A connector according to claim 4, wherein: The clamping hole is provided with an annular limiting groove (3211, 3311), and the elastic fixing part (34) is provided with an annular limiting protrusion (341) matched with the annular limiting groove (3211, 3311).

6. A connector according to claim 4, wherein: The elastic fixing part (34) comprises a first elastic fixing part and a second elastic fixing part used in pairs, and the first elastic fixing part and the second elastic fixing part are matched with the first half hole and the second half hole respectively.

7. A connector according to claim 6, wherein: The elastic fixing part (34) is provided with multiple groups, each group having different inner diameter sizes to adapt to cables with different outer diameters; or the elastic fixing part can automatically adjust the inner diameter size to adapt to cables with different outer diameters.

8. The connector of claim 3, wherein: The boss plate (31) is provided with a through hole (311), the first fixing block (32) and the second fixing block (33) are both provided with a fixing hole corresponding to the position of the through hole (311), and the fixing assembly (35) passes through the first fixing block (32), the boss plate (31) and the second fixing block (33) in sequence to fix the first fixing block, the boss plate and the second fixing block together.

9. The connector of claim 3, wherein: The plug and / or the socket further comprises a handle (4), the handle comprising a fixing part (41) and a holding part (42), the fixing part (41) being detachably mounted on the boss (1131, 2131), and the holding part (42) extending from the boss (1131, 2131) to a direction away from the terminal end.

10. A connector according to any one of claims 1-3, characterized in that: The first connecting assembly comprises a current pin module (12) and a signal pin module (13), and the second connecting assembly comprises a current socket module (22) for matching connection with the current pin module and a signal socket module (23) for matching connection with the signal pin module.

11. A connector according to claim 10, wherein: The current pin module comprises a current pin (121), and the current socket module comprises a current socket (221), the current pin (121) being provided with a first clamping groove (1211) in the circumferential direction, and the current socket (221) being provided with a second clamping groove (2211) in the circumferential direction; The first shell (11) is provided with a first accommodating groove (111) for inserting a first clamping piece (51); The second shell (21) is provided with a second accommodating groove (211) for inserting a second clamping piece (52); When the current pin module (12) is loaded into the first shell (11), the first clamping groove (1211) is opposite to the first accommodating groove (111) in position, so that the first clamping piece (51) is matched and connected with the first clamping groove (1211); When the current socket module (22) is loaded into the second shell (21), the second clamping groove (2211) is opposite to the second accommodating groove (211) in position, so that the second clamping piece (52) is matched and connected with the second clamping groove (2211).

12. The connector of claim 10, wherein: The signal pin module (13) comprises a signal pin (131) and a signal pin shell (132) for mounting the signal pin, The signal pin shell (132) is provided with a limiting step (1321) at one end close to the terminal end, The signal pin shell (132) is provided with a limiting flange (1322) for preventing the signal pin shell from being pulled out of the plug-in end of the first shell at a position close to the limiting step; The first shell (11) is provided with a third accommodating groove (112) for inserting a third clamping piece (53); When the signal pin module is loaded into the first shell, the limiting step is opposite to the third accommodating groove in position, so that the third clamping piece (53) is matched and connected with the limiting step (1321).

13. The connector of claim 10, wherein: The signal socket module (23) comprises a signal socket (231) and a signal socket shell (232) for mounting the signal socket, The signal socket shell (232) is provided with a third clamping groove (2321); The second shell (21) is provided with a fourth accommodating slot (212) for inserting a fourth clamping piece (54); When the signal socket module (23) is installed in the second shell (21), the third clamping slot (2321) is opposite to the fourth accommodating slot (212) so that the fourth clamping piece (54) is connected with the third clamping slot (2321).

14. The connector of claim 10, wherein: The plug-in end of the plug is provided with a first coding pin (14), and the plug-in end of the socket is provided with a second coding pin (24), the first coding pin is matched with the second coding pin; The current pin module (12) and the current socket module (22) are each provided with two, the first coding pin (14) is located between the two current pin modules (12), and the second coding pin (24) is located between the two current socket modules (22); or, The current pin module (12), the current socket module (22), the signal pin module (13) and the signal socket module (23) are each provided with one, the first coding pin (14) is located between the current pin module (12) and the signal pin module (13), and the second coding pin (24) is located between the current socket module (22) and the signal socket module (23).

15. A connector according to claim 14, wherein: The first coding pin (14) and the second coding pin (24) each include a fixed end (141, 241), a stop end (142, 242) and a matched plug-in end (143, 243), the fixed end (141, 241) is used for fixing the first coding pin (14) and the second coding pin (24) on the plug-in end of the plug and the socket respectively, the stop end (142, 242) is used for limiting the plug-in depth of the matched coding pin, and the matched plug-in end (143, 243) is used for matching with the coding pin of the same shape.

16. A connector according to any one of claims 1-3, characterized in that: The connector further includes a locking device (6) arranged close to the plug-in end of the plug (1) and the plug-in end of the socket (2); the locking device includes a first half seat (61) fixedly arranged on the first shell (11) and a second half seat (62) fixedly arranged on the second shell (21) and used for matching the first half seat (61).

17. A connector according to claim 16, wherein: The first half seat (61) is provided with a first type hole (611, 621) and a second type hole (612, 622), the second half seat (62) is provided with a first type hole (611, 621) and a second type hole (612, 622), the first type hole (611, 621) on the first half seat (61) and the second type hole (612, 622) on the second half seat (62) are matched to form a first locking hole group, and the second type hole (612, 622) on the first half seat (61) and the first type hole (611, 621) on the second half seat (62) are matched to form a second locking hole group; a locking piece is selectively inserted into the first locking hole group or the second locking hole group.

Images