Connector assembly, self-moving device and cleaning system

Abstract

The utility model discloses a connector assembly, a self-moving device and a cleaning system. The connector assembly comprises a socket, wherein the socket comprises a plurality of first PIN modules which are arranged in sequence; the plug comprises a plurality of second PIN modules which are arranged in sequence, and the number of the second PIN modules is equal to or smaller than that of the first PIN modules; wherein the socket and the plug are provided with mistake-proof structures, the mistake-proof structures are configured to enable the second PIN modules to be correspondingly connected with the first PIN modules when the number of the second PIN modules is equal to the number of the first PIN modules, and the mistake-proof structures are configured to enable the second PIN modules to be correspondingly connected with part of the first PIN modules when the number of the second PIN modules is smaller than the number of the first PIN modules. Therefore, the plug can be accurately connected with the same socket before and after the PIN number of the plug is changed, the operation of resetting and verifying the socket is simplified, a good misplug prevention effect is achieved, and the reliability of the mainboard is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of smart home, especially to a connector assembly, a self-moving device and a cleaning system. BACKGROUND

[0002] With the continuous development of science and technology and the continuous improvement of people's living standards, self-moving cleaning devices such as floor sweeping robots, floor mopping robots, etc. have continuously entered our daily life. The current self-moving device, the battery and the mainboard of the device body are usually connected through a connector assembly, such as a connector plug arranged on the battery, a connector socket connected with the mainboard, and the connection of the plug and the socket to realize the connection of the battery and the mainboard. Since the number of pins of the socket and the plug is usually the same, if the connector plug at the battery end needs to change the number of pins due to insufficient current carrying capacity or design redundancy, the socket end on the mainboard also needs to be modified, which requires designers to reselect and design and verify, and the workload is large. SUMMARY

[0003] A series of simplified concepts are introduced in the summary part, which will be further described in detail in the specific embodiment part. This part of the utility model does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and even less means to determine the protection scope of the claimed technical solution.

[0004] The embodiment of the utility model provides a connector assembly, which comprises: a socket, the socket comprises a plurality of first PIN modules arranged in sequence; a plug, the plug comprises a plurality of second PIN modules arranged in sequence, the number of second PIN modules is equal to or less than the number of first PIN modules; wherein the socket and the plug are provided with an error-proof structure, the error-proof structure is configured to connect the second PIN module and the first PIN module corresponding to each other when the number of second PIN modules is equal to the number of first PIN modules, and the error-proof structure is configured to connect the second PIN module and part of the first PIN module corresponding to each other when the number of second PIN modules is less than the number of first PIN modules.

[0005] Further, the first PIN module comprises a first shell and a first PIN pin located inside the first shell; the second PIN module comprises a second shell and a second PIN pin located inside the second shell, the second shell is suitable for being inserted outside the first shell to make the second PIN pin and the first PIN pin contact; the error-proof structure comprises a first error-proof structure arranged on the corresponding first shell and second shell, the first error-proof structure is configured to position the corresponding first shell and second shell; the electrical signal properties of the first PIN pin and the second PIN pin in the corresponding first shell and second shell are the same.

[0006] Further, the electrical signal properties of the first and second PIN pins adjacent to the outside of the corresponding first and second housings are the same.

[0007] Further, the first error-proofing structure comprises a chamfer structure arranged at the relative positions of the corresponding first and second housings.

[0008] Further, the first error-proofing structure comprises a recess and a protrusion, the recess is arranged on one of the corresponding first and second housings, and the protrusion is arranged on the other one.

[0009] Further, the positions of the first error-proofing structures on different first housings are the same or different.

[0010] Further, the socket further comprises a seat body, the first housings are arranged on the seat body in a spaced manner, and a slot for accommodating the second housings is formed between the seat body and the first housings; the plug further comprises a body, the second housings are arranged on the body in a spaced manner; the error-proofing structure further comprises a second error-proofing structure, the second error-proofing structure is arranged on the seat body and / or the body, and the second error-proofing structure is located outside the first housings to position the seat body and the body.

[0011] Further, the second error-proofing structure comprises a positioning rib located on the seat body, when the number of the second PIN modules is less than the number of the first PIN modules, the height of the positioning rib is higher than the height of the second housings protruding from the body, and when the number of the second PIN modules is equal to the number of the first PIN modules, the body is provided with a positioning groove matched with the positioning rib.

[0012] Further, the number of the first PIN modules is 6, and the electrical signal properties of the first PIN pins of the 6 first PIN modules are positive, positive, NTC, ID, negative, and negative in sequence.

[0013] Further, the number of the second PIN modules is 6, and the electrical signal properties of the 6 second PIN pins correspond one by one to the electrical signal properties of the 6 first PIN pins.

[0014] Further, the number of the second PIN modules is 4, and the electrical signal properties of the 4 second PIN pins are positive, NTC, ID, and negative in sequence.

[0015] Further, the first error-proofing structure on the socket is arranged on the first housings of the other first PIN modules except the second first PIN module with the electrical signal property of positive.

[0016] Further, the first error-proofing structure on the plug is arranged on the second housings of the other second PIN modules except the second second PIN module with the electrical signal property of positive.

[0017] Further, the first mistake-proof structure on the plug is arranged on the second shell of other second PIN modules except the second PIN module with the positive electrical signal attribute.

[0018] Further, the second mistake-proof structure on the socket is arranged between the first shells of two first PIN modules with the positive electrical signal attribute and between the first shells of two first PIN modules with the negative electrical signal attribute; when the number of the second PIN modules is six, the second mistake-proof structure on the plug is arranged between the second shells of two second PIN modules with the positive electrical signal attribute and between the second shells of two second PIN modules with the negative electrical signal attribute.

[0019] Further, the plug further comprises a protective plug which is detachably inserted into the interior of the two second shells at the two ends.

[0020] Further, the first shell of the second first PIN module with the positive electrical signal attribute has a size larger than that of the adjacent first shell.

[0021] Further, the connector assembly further comprises a fool-proof structure, the fool-proof structure comprising a buckle and a clamping portion, one of the buckle and the clamping portion being arranged on the side of the seat body and the other being arranged on the side of the body, the buckle and the clamping portion being matched to limit the relative movement of the seat body and the body.

[0022] Further, the fool-proof structures on the plugs with different numbers of second PIN modules are located on the same side of the plug.

[0023] The second aspect of the embodiment of the utility model provides a self-moving device, including a mainboard, a battery, and the connector assembly of any one of the first aspect, one of the socket and the plug is arranged on the mainboard, and the other is connected with the battery.

[0024] The third aspect of the embodiment of the utility model provides a cleaning system, including a base station and the self-moving device.

[0025] The connector assembly, the self-moving device and the cleaning system provided by the embodiment of the utility model, the connector assembly includes the socket and the plug, through setting multiple first PIN modules on the socket and setting the mistake proofing structure on the socket and the plug, the plug whose the number of second PIN modules is equal to the number of first PIN modules can be accurately fixed on the socket, and the plug whose the number of second PIN modules is less than the number of first PIN modules can be accurately fixed on the socket, so that the PIN number of the plug can be accurately connected with the same socket before and after changing, the problem that the connector assembly is frequently replaced due to insufficient overcurrent capacity of the connector assembly is solved, one connector assembly can meet different overcurrent capacity to meet the peak discharge demand of the battery of the self-moving device. Meanwhile, the setting does not need to change the wire diameter, is favorable to saving cost and is convenient to install. And the setting of the mistake proofing structure can avoid the possibility that the plug whose the number of second PIN modules is less than the number of first PIN modules is misinserted with the socket and causes the mainboard to be damaged, greatly improves the reliability of the mainboard.

[0026] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following specific embodiments of the utility model are described. BRIEF DESCRIPTION OF DRAWINGS

[0027] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are for the purpose of illustrating the preferred embodiments only and are not to be considered as limiting of the utility model. Moreover, like reference numerals are used to designate like parts throughout the various drawings. Among them:

[0028] Figure 1 A structural schematic view of one perspective of the connector assembly of the first embodiment provided by the utility model is shown;

[0029] Figure 2 A structural schematic view of one perspective of the socket of the embodiment provided by the utility model is shown; Figure 1 An explosion schematic view of one perspective of the embodiment shown;

[0030] Figure 3 A structural schematic view of one perspective of the socket of the embodiment provided by the utility model is shown;

[0031] Figure 4 A structural schematic view of one perspective of the socket of the embodiment provided by the utility model is shown; Figure 3 A partial enlarged schematic view of A of the embodiment shown;

[0032] Figure 5 A structural schematic view of one perspective of the plug of the first embodiment provided by the utility model is shown;

[0033] Figure 6 a structure diagram of another view of the embodiment shown is shown; Figure 1 a structure diagram of another view of the embodiment shown is shown;

[0034] Figure 7 a structure diagram of another view of the embodiment shown is shown; Figure 6 a sectional view of the A-A direction of the embodiment shown is shown;

[0035] Figure 8 a structure diagram of another view of the connector assembly of the second embodiment provided by the utility model is shown;

[0036] Figure 9 a structure diagram of another view of the connector assembly of the second embodiment provided by the utility model is shown; Figure 8 an exploded schematic view of one view of the embodiment shown is shown;

[0037] Figure 10 a structure diagram of one view of the plug of the second embodiment provided by the utility model is shown;

[0038] Figure 11 a structure diagram of another view of the embodiment shown is shown; Figure 8 a structure diagram of another view of the embodiment shown is shown;

[0039] Figure 12 a sectional view of the B-B direction of the embodiment shown is shown; Figure 11 a sectional view of the B-B direction of the embodiment shown is shown;

[0040] Figure 13 a structure diagram of one view of the self-moving device provided by the utility model is shown;

[0041] Figure 14 a structure diagram of one view of the cleaning system provided by the utility model is shown.

[0042] Explanation of reference signs

[0043] 100 connector assembly, 200 socket, 210 first PIN module, 211 first housing, 211a first housing a, 211b first housing b, 211c first housing c, 211d first housing d, 211e first housing d, 211f first housing f, 212 first PIN, 212a first PIN a, 212b first PIN b, 212c first PIN c, 212d first PIN d, 212e first PIN e, 212f first PIN f, 220 seat body, 300 plug, 310 second PIN module, 311 second housing, 311a second housing a, 311b second housing b, 311c second housing c, 311d second housing d, 311e second housing d, 311f second housing f, 312 second PIN, 312a second PIN a, 312b second PIN b, 312c second PIN c, 312d second PIN d, 312e second PIN e, 312f second PIN f, 320 body, 400 error-proof structure, 410 first error-proof structure, 411 first chamfer structure, 411a first chamfer structure a, 411c first chamfer structure c, 411d first chamfer structure d, 411e first chamfer structure d, 411f first chamfer structure f, 412 second chamfer structure, 412a second chamfer structure a, 412c second chamfer structure c, 412d second chamfer structure d, 412e second chamfer structure e, 412f second chamfer structure f, 420 second error-proof structure, 421 positioning rib, 421a positioning rib a, 421b positioning rib b, 422 positioning groove, 422a positioning groove a, 422b positioning groove b, 500 fool-proof structure, 510 buckle, 520 clamping portion, 600 self-moving device, 610 mainboard, 620 battery, 630 device body, 700 cleaning system, 710 base station. DETAILED DESCRIPTION

[0044] In the following description, numerous specific details are given to provide a thorough understanding of the technology provided. However, it will be apparent that the technology provided can be practiced without one or more of these specific details. In some instances, well-known structures are not shown in detail in order not to obscure the aspects of the technology provided.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present technology. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0046] Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be implemented in many different ways and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments have been provided merely for the purposes of disclosure and to fully and completely disclose the present application to those skilled in the art. It should be further understood that the exemplary embodiments are not to be construed as limiting the present application in any manner.

[0047] As shown in Figures 1 to 14 , the embodiment of the present application provides a connector assembly 100, a self-moving device 600 and a cleaning system 700. Among them, the connector assembly 100 is applied to the self-moving device 600, the self-moving device 600 includes a battery 620 and a mainboard 610, and the connector assembly 100 is used to connect the battery 620 and the mainboard 610. As shown in Figure 14 , the self-moving device 600 is applied to the cleaning system 700, and the cleaning system 700 includes the self-moving device 600 and a base station 710, that is, the base station 710 and the self-moving device 600 are used in cooperation.

[0048] As shown in Figure 13 , the self-moving device 600 can be understood as a robot capable of self-walking, such as a self-moving cleaning device, such as a sweeping robot, a mopping robot, a sweeping and mopping integrated robot, etc., or a meal delivery robot, a delivery robot, etc. It can be understood that the self-moving device 600 can also be other robots, which are not listed one by one in the present application.

[0049] Further, the self-moving device 600 includes the battery 620 and the mainboard 610, and the connector assembly 100 is used to electrically connect the battery 620 and the mainboard 610. Specifically, the self-moving device 600 can further include a device body 630, the mainboard 610 is installed on the device body 630, and the battery 620 is also installed on the device body 630. The battery 620 and the mainboard 610 are electrically connected through the connector assembly 100.

[0050] Further, as shown in Figure 14 , the cleaning system 700 includes the base station 710 and the self-moving device 600, and the base station 710 and the self-moving device 600 are used in cooperation. The self-moving device 600 can be parked on the base station 710 or leave the base station 710. Specifically, when the self-moving device 600 starts to work, the self-moving device 600 starts from the cleaning base station 710 to perform a cleaning task. When the self-moving device 600 completes the cleaning task or other conditions that need to suspend the cleaning task, the self-moving device 600 can return to the cleaning base station 710 to perform charging, and / or water replenishment, and / or washing, and / or dust collection, etc.

[0051] AsFigure 1 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 11 and Figure 12 As shown in the drawings, the embodiment of the utility model provides a connector assembly 100, include: socket 200, socket 200 include side by side arrangement multiple first PIN module 210;Plug 300, plug 300 include side by side arrangement multiple second PIN module 310, the number of second PIN module 310 is equal to or less than the number of first PIN module 210;Wherein, socket 200 and plug 300 are provided with mistake prevention structure 400, mistake prevention structure 400 is configured to when the number of second PIN module 310 is equal to the number of first PIN module 210, make second PIN module 310 and first PIN module 210 corresponding connection, mistake prevention structure 400 is configured to when the number of second PIN module 310 is less than the number of first PIN module 210, make second PIN module 310 and part first PIN module 210 corresponding connection.

[0052] Wherein, the connector assembly 100 includes the socket 200 and the plug 300, one of the socket 200 and the plug 300 is arranged on the mainboard 610, and the other is connected with the battery 620, whereby, by the socket 200 and the plug 300 are connected, the battery 620 and the mainboard 610 can be electrically connected, and the operation is simple and convenient to connect. Wherein, the socket 200 can be arranged on the mainboard 610, and the plug 300 is connected with the battery 620, such as the plug 300 is connected with the battery 620 through the wiring harness;Or, the plug 300 can be arranged on the mainboard 610, and the socket 200 is connected with the battery 620, such as the socket 200 is connected with the battery 620 through the wiring harness.

[0053] The connector assembly 100 provided by the embodiment of the utility model, comprising a socket 200 and a plug 300, the socket 200 comprises a plurality of first PIN modules 210 arranged in sequence, the plug 300 comprises a plurality of second PIN modules 310 arranged in sequence, the number of second PIN modules 310 can be equal to the number of first PIN modules 210, or the number of second PIN modules 310 can be less than the number of first PIN modules 210. By setting the mistake-proof structure 400 on the socket 200 and the plug 300, when the number of second PIN modules 310 of the plug 300 is equal to the number of first PIN modules 210 of the socket 200, the mistake-proof structure 400 can be used to connect the second PIN modules 310 of the plug 300 and the first PIN modules 210 of the socket 200 correspondingly, so as to realize the accurate corresponding connection of the plug 300 and the socket 200 with equal number of PIN modules; when the number of second PIN modules 310 of the plug 300 is less than the number of first PIN modules 210 of the socket 200, the mistake-proof structure 400 can be used to connect the second PIN modules 310 of the plug 300 and part of the first PIN modules 210 of the socket 200 correspondingly, so as to realize the accurate connection of the plug 300 and the socket 200 with unequal number of PIN modules. Therefore, the setting of the mistake-proof structure 400 enables one socket 200 module to be accurately connected with a plurality of plugs 300 with different number of second PIN modules 310, has high adaptability and is widely used.

[0054] Meanwhile, the setting can meet the requirement that the plug 300 at the battery 620 end of the self-moving device 600 is connected with the same socket 200 before and after the modification of the PIN number, simplifies the complicated operation that the plug 300 at the battery 620 end of the self-moving device 600 needs to be modified after the modification of the PIN number, and the designers need to reselect and design and verify, simplifies the work of the designers. Moreover, the setting can avoid the problem that the mainboard 610 is burnt due to the misplug during the connection of the socket 200 and the plug 300 with different PIN numbers, greatly improves the reliability of the mainboard 610.

[0055] Specifically, taking the self-moving device 600 as a sweeping robot as an example, when the peak discharge current of the battery 620 increases, the overcurrent capacity of the connector assembly 100 needs to be improved, and the number of pins of the connector assembly 100 can be increased, for example, the number of pins of the connector assembly 100 is adjusted from 4 to 5 or 6, for example, the positive signal is expanded from one to two, and the negative signal is expanded from one to two, so that even if the same wire diameter, the overcurrent capacity can be doubled to meet the peak discharge demand of the battery 620. However, in the related art, when the number of pins of the plug 300 at the end of the battery 620 increases, the number of pins of the socket 200 needs to be modified correspondingly, and the designer needs to reselect and design and verify, which is a lot of work. Alternatively, the overcurrent capacity of the connector assembly 100 can be improved by increasing the wire diameter of the wire harness, but a too thick wire diameter will increase the cost and the volume, and is not convenient to install.

[0056] Therefore, the connector assembly 100 provided in the embodiment of the present application, by setting a plurality of first PIN modules 210 on the socket 200, and setting an error-proof structure 400 on the socket 200 and the plug 300, the plug 300 with the number of second PIN modules 310 equal to the number of first PIN modules 210 can be accurately connected to the socket 200, and the plug 300 with the number of second PIN modules 310 less than the number of first PIN modules 210 can be accurately connected to the socket 200, so that the plug 300 can be accurately connected to the same socket 200 before and after the number of pins of the plug 300 changes, improving the versatility of the socket 200 and the compatibility of the connector assembly 100, simplifying the reselection and verification operation of the socket 200, solving the problem of frequent replacement of the connector assembly 100 due to insufficient overcurrent capacity of the connector assembly, so that one connector assembly 100 can meet different overcurrent capacities to meet the peak discharge demand of the battery 620 of the self-moving device 600. At the same time, this setting does not change the wire diameter, so it will not increase the cost and volume of the wire harness, which is beneficial to save costs and facilitate installation. Moreover, if the plug 300 including four second PIN modules 310 is inserted into the socket 200 including five or six first PIN modules 210, it will cause physical damage to the socket 200, or the mainboard 610 will be burned due to the difference in electrical signal properties of the corresponding PIN modules of the plug 300 and the socket 200. In the embodiment, the error-proof structure 400 can avoid the possibility of damage to the mainboard 610 caused by the misplug of the plug 300 with the number of second PIN modules 310 less than the number of first PIN modules 210 and the socket 200, greatly improving the reliability of the mainboard 610.

[0057] For example,Figure 2 and Figure 9 As shown in FIGS. 10 and 11, the plurality of first PIN modules 210 are arranged in sequence, which can be understood as the plurality of first PIN modules 210 being arranged in a straight line side by side, and the plurality of second PIN modules 310 are arranged in sequence, which can be understood as the plurality of second PIN modules 310 being arranged in a straight line side by side. When the number of the second PIN modules 310 is less than the number of the first PIN modules 210, the difference between them can be two, and the electrical signal properties of the two missing second PIN modules 310 can be positive and negative, respectively.

[0058] It can be understood that, by reasonably setting the number and electrical signal properties of the first PIN modules 210 and the number and electrical signal properties of the second PIN modules 310, the same socket 200 can meet the connection of the plug 300 and the socket 200 with the same number of PIN modules, and the connection of the plug 300 and the socket 200 with at least one PIN module of different number, that is, the socket 200 can meet the connection of the plug 300 with one, two, three, or other number of second PIN modules 310 whose number is less than the number of the first PIN modules 210.

[0059] As shown in FIGS. 10 and 11, Figure 3 , Figure 5 , Figure 7 , Figure 10 and Figure 12 In some possible implementation examples provided by the utility model, the first PIN module 210 includes a first shell 211 and a first PIN needle 212 located inside the first shell 211; the second PIN module 310 includes a second shell 311 and a second PIN needle 312 located inside the second shell 311, and the second shell 311 is adapted to be inserted outside the first shell 211 to make the second PIN needle 312 and the first PIN needle 212 contact; the mistake-proof structure 400 includes a first mistake-proof structure 410 arranged on the corresponding first shell 211 and second shell 311, and the first mistake-proof structure 410 is configured to position the corresponding first shell 211 and second shell 311; wherein the electrical signal properties of the first PIN needle 212 and the second PIN needle 312 in the corresponding first shell 211 and second shell 311 are the same. Thus, the corresponding first shell 211 of the first PIN needle 212 with the same electrical signal properties and the corresponding second shell 311 of the second PIN needle 312 are connected to ensure that the electrical signal properties of the contacting first PIN needle 212 and second PIN needle 312 are the same, and reduce the possibility of misplug of the plug 300 and the socket 200.

[0060] In the above embodiment, the electrical signal properties of the adjacent first PIN needle 212 and second PIN needle 312 outside the corresponding first shell 211 and second shell 311 are also the same.

[0061] When two PIN modules with the same electrical signal property are included in the socket 200 and / or the plug 300, such as two first PIN modules with the same positive or negative electrical signal property, the electrical signal properties of the first PIN 212 and the second PIN 312 inside the first shell 211 and the second shell 311 are the same, while the electrical signal properties of the adjacent first PIN 212 and the second PIN 312 outside are different, which causes the problem of burning the mainboard 610 when the plug 300 and the socket 200 are connected.

[0062] The first shell 211 and the second shell 311 have the same electrical signal property of the first PIN 212 and the second PIN 312 inside, and the electrical signal property of the adjacent first PIN 212 and the second PIN 312 outside is the same, which can ensure that the corresponding first shell 211 and the second shell 311 have a one-to-one correspondence with the entire socket 200 and the plug 300. The first error prevention structure 410 is arranged on the corresponding first shell 211 and the second shell 311 to position the first shell 211 and the second shell 311, which can ensure that the corresponding first shell 211 and the second shell 311 are connected one by one, and the electrical signal property of the first PIN 212 and the second PIN 312 in contact is the same. Therefore, the plug 300 with the number of second PIN modules 310 equal to the number of first PIN modules 210 can be accurately connected to the socket 200, and the plug 300 with the number of second PIN modules 310 less than the number of first PIN modules 210 can be accurately connected to the socket 200, which reduces or avoids the possibility of misplug of the socket 200 and the plug 300, ensures the accuracy of the connection of the socket 200 and the plug 300 with different numbers of second PIN modules 310, and improves the reliability of the mainboard 610.

[0063] It can be understood that the number of the corresponding first shell 211 and the second shell 311 can be equal to the number of the second PIN module 310 on the plug 300, and the first error prevention structure 410 can be arranged on all the number of the corresponding first shell 211 and the second shell 311, or the first error prevention structure 410 can be arranged on part of the number of the corresponding first shell 211 and the second shell 311.

[0064] As shown in Figure 3 , Figure 5 , Figure 10 In some possible embodiments of the utility model, the first error prevention structure 410 includes a chamfer structure arranged at the relative position of the corresponding first shell 211 and the second shell 311. The chamfer structure has good positioning and limiting effect, is convenient to process, and is easy to implement.

[0065] As Figure 3 , Figure 5 , Figure 9 , Figure 10 shown, specifically, the first error prevention structure 410 includes a first chamfer structure 411 arranged on the first shell 211, and a second chamfer structure 412 arranged on the second shell 311, the positions of the first chamfer structure 411 on the corresponding first shell 211 and the second chamfer structure 412 on the second shell 311 are the same, and the shapes are the same. As the first chamfer structure 411 can be located at the upper left, lower left, upper right, lower right of the first shell 211.

[0066] Among them, the positions of the first chamfer structure 411 on different first shells 211 can be the same or different. For example, the first chamfer structure 411 on part of the first shell 211 can be located at the lower left, and the first chamfer structure 411 on part of the first shell 211 can be located at the upper right, and so on.

[0067] In some possible embodiments of the utility model, the first error prevention structure 410 includes a recess and a protrusion, and one of the corresponding first shell 211 and second shell 311 is provided with a recess, and the other is provided with a protrusion. The recess and the protrusion have good positioning and limiting effect, and are convenient to process and easy to realize.

[0068] Specifically, the recess can be arranged on the first shell 211, and the protrusion can be arranged on the second shell 311, or the recess can be arranged on the second shell 311, and the protrusion can be arranged on the first shell 211. Among them, the recess can be a groove, a through hole, etc., and the protrusion can be a convex column, a convex block, etc.

[0069] Among them, the recess and the protrusion can be arranged at the same position of the corresponding first shell 211 and second shell 311. For example, the recess and the protrusion can be located at the left side, right side, upper side, lower side, corner of the first shell 211, etc.

[0070] The positions of the recess or protrusion on different first shells 211 can be the same or different. For example, the recess or protrusion on part of the first shell 211 can be located at the left side, and the recess or protrusion on part of the first shell 211 can be located at the right side, and so on.

[0071] As Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 9 , Figure 10As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220.

[0072] As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220. Figure 2 As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220.

[0073] Specifically, the second error-proof structure 420 can be arranged on the seat body 220, or the second error-proof structure 420 can be arranged on the body 320, or the second error-proof structure is arranged on both the seat body 220 and the body 320.

[0074] As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220. Figure 2 、 Figure 3 As shown in some possible embodiments provided by the utility model, the second error-proof structure 420 comprises a positioning rib 421 arranged on the seat body 220.

[0075] As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220. Figure 8 、 Figure 9 As shown in some possible embodiments provided by the utility model, when the number of the second PIN module 310 is less than the number of the first PIN module 210, the height of the positioning rib 421 is higher than the height of the second shell 311 protruding from the body 320, so that when the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220, the positioning rib 421 will abut against the body 320, so that the second shell 311 will not be fully inserted into the slot, that is, the first PIN needle 212 in the first shell 211 and the second PIN needle 312 in the second shell 311 will not be in contact, thereby achieving a good error-proof effect, effectively avoiding the problem of the plug 300 and the socket 200 being misinserted and burning the mainboard 610, and being conducive to improving the reliability of the mainboard 610.

[0076] As shown in some possible embodiments provided by the utility model, the socket 200 further comprises a seat body 220, the first shell 211 is arranged on the seat body 220 in a spaced manner, and a slot for accommodating the second shell 311 is formed between the seat body 220 and the first shell 211; the plug 300 further comprises a body 320, and the second shell 311 is arranged on the body 320 in a spaced manner, that is, the second shell 311 protrudes from an end of the body 320, and the second shell 311 is inserted into the slot between the first shell 211 and the seat body 220. Figure 2 、 Figure 5As shown, when the number of the second PIN module 310 is equal to the number of the first PIN module 210, the body 320 is provided with the positioning groove 422 matched with the positioning rib 421, thereby the positioning rib 421 and the positioning groove are matched to play a good positioning role on the seat body 220 and the body 320, so that the plug 300 and the socket 200 are plugged in a suitable posture, the problem of the plug 300 and the socket 200 being mis-plugged and burning the mainboard 610 can be avoided, and the accuracy of the connection of the plug 300 and the socket 200 is ensured.

[0077] As Figure 3 shown, in some possible embodiments of the utility model, the number of the first PIN module 210 is six, and the electrical signal properties of the first PIN pins 212 of the six first PIN modules 210 are positive, positive, NTC, ID, negative and negative in turn. As the first shells 211 of the six first PIN modules 210 are first shell a 211a, first shell b 211b, first shell c 211c, first shell d 211d, first shell e 211e and first shell f 211f respectively. The six first PIN pins 212 are first PIN pin a 212a, first PIN pin b 212b, first PIN pin c 212c, first PIN pin d 212d, first PIN pin e 212e and first PIN pin f 212f respectively, and the electrical signal properties of the six first PIN pins 212 are positive, positive, NTC (such as a thermistor), ID (such as an ID resistor) and negative in turn.

[0078] In some possible embodiments of the utility model, the number of the second PIN module 310 can be six or four. It can be understood that in some examples, the number of the second PIN module 310 can also be five or other numbers.

[0079] As Figure 5 and Figure 7As shown, the number of the second PIN modules 310 of the plug 300 is 6, and the electrical signal properties of the 6 second PIN pins 312 correspond to the electrical signal properties of the 6 first PIN pins 212 one by one. As the six second PIN modules 310 are respectively a second shell a 311a, a second shell b 311b, a second shell c 311c, a second shell d 311d, a second shell e 311e, and a second shell f 311f. The six second PIN pins 312 are respectively a second PIN pin a 312a, whose electrical signal property is positive; a second PIN pin b 312b, whose electrical signal property is positive; a second PIN pin c 312c, whose electrical signal property is NTC; a second PIN pin d 312d, whose electrical signal property is ID; a second PIN pin e 312e, whose electrical signal property is negative; and a second PIN pin f 312f, whose electrical signal property is negative. It can be understood that in this case, the 6 first PIN modules 210 on the socket 200 correspond to the 6 second PIN modules 310 on the plug 300 one by one, that is, the second shell a 311a is inserted into the first shell a 211a, and the second PIN pin a 312a is in contact with the first PIN pin a 212a; the second shell b 311b is inserted into the first shell b 211b, and the second PIN pin b 312b is in contact with the first PIN pin b 212b; the second shell c 311c is inserted into the first shell c 211c, and the second PIN pin c 312c is in contact with the first PIN pin c 212c; the second shell d 311d is inserted into the first shell d 211d, and the second PIN pin d 312d is in contact with the first PIN pin d 212d; the second shell e 311e is inserted into the first shell e 211e, and the second PIN pin e 312e is in contact with the first PIN pin e 212e; and the second shell f 311f is inserted into the first shell f 211f, and the second PIN pin f 312f is in contact with the first PIN pin f 212f.

[0080] As Figure 10 and Figure 12As shown, the number of the second PIN modules 310 of the plug 300 is 4, and the electrical signal properties of the 4 second PIN pins 312 are positive, NTC, ID, and negative in turn. The second housings 311 of the four second PIN modules 310 are second housing b 311b, second housing c 311c, second housing d 311d, and second housing e 311e respectively. The four second PIN pins 312 are second PIN pin b 312b, the electrical signal property of which is positive; second PIN pin c 312c, the electrical signal property of which is NTC; second PIN pin d 312d, the electrical signal property of which is ID; and second PIN pin e 312e, the electrical signal property of which is negative. It can be understood that in this case, the four first PIN modules 210 in the middle of the six first PIN modules 210 on the socket 200 correspond one by one to the four second PIN modules 310 on the plug 300, that is, the second housing b 311b is inserted into the outside of the first housing b 211b, and the second PIN pin b 312b is in contact with the first PIN pin b 212b; the second housing c 311c is inserted into the outside of the first housing c 211c, and the second PIN pin c 312c is in contact with the first PIN pin c 212c; the second housing d 311d is inserted into the outside of the first housing d 211d, and the second PIN pin d 312d is in contact with the first PIN pin d 212d; and the second housing e 311e is inserted into the outside of the first housing e 211e, and the second PIN pin e 312e is in contact with the first PIN pin e 212e.

[0081] As shown in the drawings, Figure 3 , Figure 4 As shown in some possible embodiments provided by the utility model, the first error prevention structure 410 on the socket 200 is arranged on the first housings 211 of the other first PIN modules 210 except the second first PIN module 210 with the electrical signal property of positive. That is, the first housing b 211b on the socket 200 is not provided with the first error prevention structure 410, and the first error prevention structure 410 is arranged on the first housing a 211a, the first housing c 211c, the first housing d 211d, the first housing e 211e, and the first housing f 211f, such as the first housing a 211a, the first housing c 211c, the first housing d 211d, the first housing e 211e, and the first housing f 211f, which are all provided with the first chamfer structure 411. It can be understood that the positions of the first chamfer structure a 411a on the first housing a 211a, the first chamfer structure c 411c on the first housing c 211c, the first chamfer structure d 411d on the first housing d 211d, the first chamfer structure e 411e on the first housing e 211e, and the first chamfer structure f 411f on the first housing f 211f can be the same or different.

[0082] Specifically, as shown in the drawings, Figure 3The first chamfer structure a411a on the first shell a211a, the first chamfer structure e411e on the first shell e211e, and the first chamfer structure f411f on the first shell f211f are located at the lower left, and the first chamfer structure c411c on the first shell c211c and the first chamfer structure d411d on the first shell d211d are located at the lower right.

[0083] As shown in Figure 5 and Figure 7 , when the number of the second PIN modules 310 is 6, the first anti-error structure 410 on the plug 300 is arranged on the second shell 311 of the other second PIN modules 310 except the second PIN module 310 with the positive electrode. That is, the second shell b311b on the plug 300 is not provided with the first anti-error structure 410, and the first anti-error structure 410 is arranged on the second shell a311a, the second shell c311c, the second shell d311d, the second shell e311e, and the second shell f311f. As shown in the second shell a311a, the second shell c311c, the second shell d311d, the second shell e311e, and the second shell f311f are all provided with the second chamfer structure 412. It can be understood that the positions of the second chamfer structure a412a on the second shell a311a, the second chamfer structure c412c on the second shell c311c, the second chamfer structure d412d on the second shell d311d, the second chamfer structure e412e on the second shell e311e, and the second chamfer structure f412f on the second shell f311f can be the same or different. Specifically, as shown in Figure 5 , the second chamfer structure a412a on the second shell a311a, the second chamfer structure e412e on the second shell e311e, and the second chamfer structure f412f on the second shell f311f are located at the lower left, and the second chamfer structure c412c on the second shell c311c and the second chamfer structure d412d on the second shell d311d are located at the lower right. It can be understood that, as shown by the arrows in Figure 3 and Figure 5 , Figure 5 , the up-down direction of the plug 300 in Figure 3 is opposite to the up-down direction of the socket 200 in

[0084] As shown in Figure 10 and Figure 12As shown, when there are four second PIN modules 310, the first error-proof structure 410 on the plug 300 is arranged on the second housing 311 of the other second PIN modules 310 whose electrical signal attribute is positive. That is, the second housing b311b on the plug 300 does not have the first error-proof structure 410, while the first error-proof structure 410 is arranged on the second housings c311c, d311d, and e311e. For example, the second housings c311c, d311d, and e311e all have a second chamfer structure 412. It can be understood that the positions of the second chamfer structure c412c on the second housing c311c, the second chamfer structure d412d on the second housing d311d, and the second chamfer structure e412e on the second housing e311e can be the same or different. Specifically, as shown... Figure 10 As shown, the second chamfer structure d412d on the second outer shell d311d and the second chamfer structure e412e on the second outer shell e311e are located at the lower left, and the second chamfer structure c412c on the second outer shell c311c is located at the lower right. It can be understood that, as... Figure 3 and Figure 10 As shown by the arrow in the image, Figure 10 The vertical direction of the plug 300 in the middle is the same as Figure 3 The top and bottom of the socket 200 are reversed.

[0085] like Figure 3 and Figure 4 As shown, in some possible embodiments provided by this utility model, the second error-proof structure 420 on the socket 200 is arranged between the first housings 211 of the two first PIN modules 210 with positive electrical signal attributes, and between the first housings 211 of the two first PIN modules 210 with negative electrical signal attributes. That is, the second error-proof structure 420 on the socket 200 is arranged between the first housings a211a and b211b, and between the first housings e211e and f211f. Specifically, the positioning rib a421a is disposed between the first housings a211a and b211b, and the positioning rib b421b is disposed between the first housings e211e and f211f.

[0086] like Figure 5 and Figure 7As shown, when the number of the second PIN modules 310 is 6, the second error-proof structure 420 on the plug 300 is arranged between the second housings 311 of two second PIN modules 310 with positive polarity of electrical signal, and between the second housings 311 of two second PIN modules 310 with negative polarity of electrical signal. That is, the second error-proof structure 420 on the plug 300 is arranged between the second housing a 311a and the second housing b 311b, and between the second housing e 311e and the second housing f 311f. Specifically, the positioning groove a 422a is arranged between the first housing a 211a and the first housing b 211b, and the positioning groove b 422b is arranged between the second housing e 311e and the second housing f 311f.

[0087] In some possible implementation embodiments provided by the utility model, when the number of the second PIN modules 310 is 6, the plug 300 further comprises a protective plug, which is detachably inserted into the interior of the two second housings 311 at both ends. The arrangement of the protective plug can block the two second housings 311 at both ends of the plug 300 comprising six second PIN modules 310, so that the four second housings 311 in the middle of the plug 300 originally having six second PIN modules 310 are not blocked, and can be connected with the four first PIN modules 210 in the middle of the socket 200 to realize the connection of the 4PIN connector assembly 100. When the connector assembly 100 needs to increase the overcurrent capacity, the protective plug is removed, so that the six second housings 311 of the plug 300 originally having six second PIN modules 310 are not blocked, and the six second PIN modules 310 can be connected with the six first PIN modules 210 on the socket 200 to realize the connection of the 6PIN connector assembly 100, so as to ensure that the connector assembly 100 has a large overcurrent capacity. Thus, the plug 300 comprising six second PIN modules 310 and the detachably connected protective plug can be matched with the socket 200 comprising six first PIN modules 210 to realize the 4PIN connector assembly 100 or the 6PIN connector assembly 100, so as to meet the different overcurrent capacities of the connector assembly 100 and have a wide range of applications. It can be understood that the plug 300 comprising six second PIN modules 310 and the detachably connected protective plug can be matched with the socket 200 comprising four first PIN modules 210 to realize the 4PIN connector assembly 100.

[0088] Specifically, the protective plug can be an elastic member and / or a waterproof member, such as a waterproof rubber plug or other types of rubber plug. When the plug 300 is used in cooperation with the socket 200 including 4 first PIN modules 210, the protective plug can be used to block the two second housings 311 at both ends of the plug 300 to avoid the two second PIN modules 310 at both ends, so that the plug 300 and the socket 200 can be connected. When the plug 300 is used in cooperation with the socket 200 including 6 first PIN modules 210, the protective plug can be removed and then used, so that the 6 second PIN modules 310 on the plug 300 are connected one by one with the 6 first PIN modules 210 on the socket 200.

[0089] As shown in Figure 3 and Figure 4 , in some possible embodiments provided by the utility model, the outer size of the first housing 211 of the second first PIN module 210 with positive signal property is larger than the outer size of the adjacent first housing 211. That is, the outer size of the first housing b211b on the socket 200 is larger than the size of the first housing a211a, and / or the outer size of the first housing b211b is larger than the size of the first housing c211c. Specifically, the width of the first housing b211b is shown as D in Figure 4 , the width of the first housing a211a is shown as d in Figure 4 , and D is larger than d.

[0090] This kind of setting makes the first housing b211b different from the first housing a211a and / or the first housing c211c in appearance, which facilitates the user to intuitively distinguish and determine the position of the second first housing b211b with positive signal property. In this way, the user can position the first second housing b311b of the plug 300 including 4 second PIN modules 310 with the first housing b211b on the socket 200 to realize accurate connection of the plug 300 including 4 second PIN modules 310 with the socket 200 including 6 first PIN modules 210, avoid the possibility of misplug, and improve the reliability of the mainboard 610.

[0091] Further, as shown in Figure 5 and Figure 7As shown, when the number of the second PIN modules 310 is 6, the size of the second shell 311 of the second PIN module 310 with the positive polarity of the electrical signal on the plug 300 is greater than the size of the adjacent second shell 311. That is, the size of the second shell b 311b on the plug 300 is greater than the size of the second shell a 311a, and / or the size of the second shell b 311b is greater than the size of the second shell c 311c. Thus, the size of the second shell b 311b can match the size of the first shell b 211b, so that the plug 300 and the socket 200 can be accurately and reliably connected.

[0092] Further, as shown in Figure 10 and Figure 12 As shown, when the number of the second PIN modules 310 is 4, the size of the second shell 311 of the second PIN module 310 with the positive polarity of the electrical signal on the plug 300 is greater than the size of the adjacent second shell 311. That is, the size of the second shell b 311b on the plug 300 is greater than the size of the second shell a 311a, and / or the size of the second shell b 311b is greater than the size of the second shell c 311c. Thus, the size of the second shell b 311b can match the size of the first shell b 211b, so that the plug 300 and the socket 200 can be accurately and reliably connected.

[0093] As shown in Figure 2 , Figure 9 In some possible embodiments of the utility model, the connector assembly 100 further comprises a fool-proof structure 500, the fool-proof structure 500 comprises a buckle 510 and a clamping portion 520, one of the buckle 510 and the clamping portion 520 is arranged on the side of the seat body 220, and the other is arranged on the side of the body 320, and the buckle 510 and the clamping portion 520 are matched to limit the relative movement of the seat body 220 and the body 320, so that the buckle 510 and the clamping portion 520 can improve the reliability and accuracy of the connection of the plug 300 and the socket 200. At the same time, the buckle 510 and the clamping portion 520 also play a good fool-proof and indication role, can indicate the user to connect the socket 200 and the plug 300 on the side with the buckle 510 and the clamping portion 520, avoid the possibility of reverse insertion of the socket 200 and the plug 300, and improve the accuracy and connection efficiency of the connection of the socket 200 and the plug 300.

[0094] Further, the buckle 510 can be arranged on the side of the seat body 220, and the clamping portion 520 can be arranged on the side of the body 320, or the buckle 510 can be arranged on the side of the body 320, and the clamping portion 520 can be arranged on the side of the seat body 220.

[0095] Furthermore, the foolproof structure 500 can also be colored, for example, by setting the same color on the same side of the base 220 and the main body 320, so as to serve the functions of foolproofing and indication.

[0096] like Figure 2 , Figure 9 As shown in the above embodiment, the foolproof structures 500 on different plugs 300 are located on the same side of the plug 300. Different plugs 300 can be understood as plugs 300 with different numbers of second PIN modules 310. That is, a plug 300 with 4 second PIN modules 310 and a plug 300 with 6 second PIN modules 310 can be considered different plugs 300. The foolproof structures 500 on different plugs 300 can be arranged on the same side of the plug 500. In other words, the position of the foolproof structures 500 on plugs 300 with different numbers of second PIN modules 310 should be consistent to ensure the universality of the socket 200, improve the compatibility of the connector assembly 100, and improve the connection efficiency and accuracy of the socket 200 and plug 300.

[0097] Specifically, the clip 510 can be located on the upper part of the plug 300, such as... Figure 2 As shown, the latch 510 is located on the upper part of the plug 300, which includes six second PIN modules 310, as... Figure 9 As shown, the latch 510 is located on the upper part of the plug 300, which includes four second PIN modules 310. It can be understood that the latching part 520 is located on the upper part of the socket 200.

[0098] In some other embodiments provided by this utility model, in order to prevent insufficient overcurrent capacity of the connector assembly 100, when designing the motherboard 610, considering the convenience of internal wiring, two sockets 200 with different numbers of first PIN modules 210 can be designed in adjacent positions on the motherboard 610. For example, the first socket 200 includes 4 first PIN modules 210 and the second socket 200 includes 5 first PIN modules 210, so as to reserve some functions. In this way, even if the plug 300 connected to the battery 620 needs to be replaced due to insufficient overcurrent capacity, such as replacing the plug 300 with 4 second PIN modules 310 to include 5 second PIN modules 310, since the motherboard 610 is provided with two sockets 200, there is no need to replace the motherboard 610. That is, the motherboard 610 does not need to be redesigned, which simplifies the workload of workers.

[0099] Further, for the plug 300 including different number of second PIN modules 310, in order to prevent the problem of burning mainboard 610 caused by mixed insertion of the plug 300 and the socket 200, color mistake-proofing can be used to avoid. For example, the mistake-proofing design of color matching scheme, such as the socket 200 including the same number of first PIN modules 210 and the plug 300 including the same number of second PIN modules 310 use the same color for mistake-proofing reminder. For example, the socket 200 including 4 first PIN modules 210 and the plug 300 including 4 second PIN modules 310 are both set to white, and the socket 200 including 5 first PIN modules 210 and the plug 300 including 5 second PIN modules 310 are both set to black, which can also prevent the misinsertion of the connector assembly 100 to a certain extent.

[0100] The utility model has carried on the illustration through the above embodiment, but should understand, the above embodiment is only for example and the purpose of illustration, and is not intended to limit the utility model to the range of described embodiment. In addition, those skilled in the art can understand that the utility model is not limited to the above embodiment, and more kinds of variations and modifications can be made according to the teaching of the utility model, and these variations and modifications all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the attached claims and its equivalent scope.

Claims

1. A connector assembly (100) characterized by, The connector assembly (100) comprises: a socket (200) comprising a plurality of first PIN modules (210) arranged in sequence; a plug (300) comprising a plurality of second PIN modules (310) arranged in sequence, the number of the second PIN modules (310) being equal to or less than the number of the first PIN modules (210); wherein the socket (200) and the plug (300) are provided with an error-proof structure (400), the error-proof structure (400) being configured to enable the second PIN modules (310) to be connected to the first PIN modules (210) in correspondence when the number of the second PIN modules (310) is equal to the number of the first PIN modules (210), and the error-proof structure (400) being configured to enable the second PIN modules (310) to be connected to part of the first PIN modules (210) in correspondence when the number of the second PIN modules (310) is less than the number of the first PIN modules (210).

2. The connector assembly (100) according to claim 1, wherein: the first PIN module (210) comprises a first housing (211) and a first PIN pin (212) located inside the first housing (211); the second PIN module (310) comprises a second housing (311) and a second PIN pin (312) located inside the second housing (311), the second housing (311) being adapted to be inserted outside the first housing (211) so that the second PIN pin (312) and the first PIN pin (212) are in contact; the error-proof structure (400) comprises a first error-proof structure (410) arranged on the corresponding first housing (211) and second housing (311), the first error-proof structure (410) being configured to position the corresponding first housing (211) and second housing (311), and the electrical signal properties of the first PIN pin (212) and the second PIN pin (312) in the corresponding first housing (211) and second housing (311) being the same.

3. The connector assembly (100) according to claim 2, wherein: the electrical signal properties of the first PIN pin (212) and the second PIN pin (312) adjacent to each other outside the corresponding first housing (211) and second housing (311) are the same.

4. The connector assembly (100) according to claim 2, wherein: the first error-proof structure (410) comprises a chamfer structure arranged at the relative positions of the corresponding first housing (211) and second housing (311).

5. The connector assembly (100) according to claim 2, wherein: the first error-proof structure (410) comprises a recess and a protrusion, the recess being arranged on one of the corresponding first housing (211) and second housing (311), and the protrusion being arranged on the other.

6. The connector assembly (100) according to claim 4, wherein, the positions of the first error-proof structures (410) on different first housings (211) are the same or different.

7. The connector assembly (100) according to claim 2, wherein, the socket (200) further comprises a seat body (220), the first housings (211) are arranged on the seat body (220) in a spaced manner, and a slot for accommodating the second housings (311) is formed between the seat body (220) and the first housings (211); the plug (300) further comprises a body (320), and the second housings (311) are arranged on the body (320) in a spaced manner; the error-proof structure (400) further comprises a second error-proof structure (420), the second error-proof structure (420) is arranged on the seat body (220) and / or the body (320), and the second error-proof structure (420) is located outside the first housings (211) to position the seat body (220) and the body (320).

8. The connector assembly (100) according to claim 7, wherein, the second error-proof structure (420) comprises a positioning rib (421) located on the seat body (220), when the number of the second PIN modules (310) is less than the number of the first PIN modules (210), the height of the positioning rib (421) is higher than the height of the second housings (311) protruding from the body (320), and when the number of the second PIN modules (310) is equal to the number of the first PIN modules (210), the body (320) is provided with a positioning groove (422) matched with the positioning rib (421).

9. The connector assembly (100) according to claim 7, wherein, the number of the first PIN modules (210) is 6, and the electrical signal properties of the first PIN pins (212) of the 6 first PIN modules (210) are positive, positive, NTC, ID, negative and negative in sequence.

10. The connector assembly (100) according to claim 9, wherein, the number of the second PIN modules (310) is 6, and the electrical signal properties of the 6 second PIN pins (312) correspond to the electrical signal properties of the 6 first PIN pins (212) one by one.

11. The connector assembly (100) according to claim 9, wherein, the number of the second PIN modules (310) is 4, and the electrical signal properties of the 4 second PIN pins (312) are positive, NTC, ID and negative in sequence.

12. The connector assembly (100) according to claim 9, wherein, the first error-proof structure (410) on the socket (200) is arranged on the first housing (211) of each of the first PIN modules (210) except the second first PIN module (210) with the electrical signal property of positive.

13. The connector assembly (100) according to claim 10, wherein the first mistake-proof structure (410) on the plug (300) is arranged on the second shell (311) of other second PIN module (310) except the second PIN module (310) with positive polarity.

14. The connector assembly (100) according to claim 11, wherein the first mistake-proof structure (410) on the plug (300) is arranged on the second shell (311) of other second PIN module (310) except the second PIN module (310) with positive polarity.

15. The connector assembly (100) according to claim 9, wherein the second mistake-proof structure (420) on the socket (200) is arranged between the first shell (211) of two first PIN modules (210) with positive polarity and between the first shell (211) of two first PIN modules (210) with negative polarity; and when the number of the second PIN module (310) is six, the second mistake-proof structure (420) on the plug (300) is arranged between the second shell (311) of two second PIN modules (310) with positive polarity and between the second shell (311) of two second PIN modules (310) with negative polarity.

16. The connector assembly (100) according to claim 10, wherein the plug (300) further comprises a protective plug which is detachably inserted into the interior of two second shells (311) at both ends.

17. The connector assembly (100) according to claim 7, wherein the first shell (211) of the second first PIN module (210) with positive polarity has a larger size than the adjacent first shell (211).

18. The connector assembly (100) according to claim 7, further comprising a mistake-proof structure (500) which comprises a buckle (510) and a clamping portion (520), one of which is arranged on the side of the seat body (220) and the other of which is arranged on the side of the body (320), and the buckle (510) and the clamping portion (520) cooperate to limit the relative movement of the seat body (220) and the body (320).

19. The connector assembly (100) according to claim 18, wherein the mistake-proof structure (500) on the plug (300) with different numbers of second PIN modules (310) is located on the same side of the plug (300). ​ ​ ​ ​ 18. The connector assembly (100) of claim 7, wherein, ​ ​ ​ ​ 20. A self-propelled apparatus (600), characterized in that A device (700) comprising a main board (610), a battery (620), and a connector assembly (100) as claimed in any of claims 1 to 19, one of the socket (200) and the plug (300) being arranged on the main board and the other being connected to the battery.

21. A cleaning system (700) characterized by, A device (700) comprising a base station (710), and a self-moving apparatus (600) as claimed in claim 20.

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