Plug, lithium ion battery and electric equipment

Abstract

The utility model relates to the field of application connection of lithium ion batteries, in particular to a plug, a lithium ion battery and electric equipment. The plug comprises a second insulating base (2), the front end of the second insulating base (2) is provided with a cavity (22) with an opening in the front end, the inner wall of the cavity (22) is provided with a second guide portion (24) extending in the front-back direction, the rear end of the second insulating base (2) is provided with at least two second insulating jacks (23), front end sockets of the second insulating jacks (23) are communicated with the cavity (22), and the front end sockets of the second insulating jacks (23) are communicated with the cavity (22). At least two second insulating jacks (23) are arranged in the cavity (22), rear-end jacks are respectively arranged on the rear end face of the second insulating base (2), at least two conductor connectors are respectively fixed in the second insulating jacks (23), the front ends of the conductor connectors respectively extend out of the front ends of the second insulating jacks (23) and are arranged in the cavity (22), and the rear ends of the conductor connectors are respectively connected with wires (5). And the leads (5) respectively extend out of the rear ends of the second insulating bases (2).

Description

TECHNICAL FIELD

[0001] The utility model relates to the application connection field of lithium ion battery, especially plug, lithium ion battery and electric equipment. BACKGROUND

[0002] With the more and more widely used lithium ion battery equipment, the equipment using lithium ion battery is more and more, and people gradually improve the requirement of the connecting device between lithium ion battery and equipment, and the connecting device between battery and charger, and the requirement is more and more flexible. And, with the fierce market competition, the user's requirement of use experience is higher and higher. SUMMARY

[0003] One of the purposes of the utility model embodiment is to provide a plug, lithium ion battery and electric equipment, and the plug is accurate in plug-in positioning, labor-saving and smooth in plugging and unplugging, and high in plugging and unplugging stability. Its structure is compact, and is favorable to realize the miniaturization of the plug.

[0004] In the first aspect, the utility model provides a plug, which comprises a plug, characterized by comprising,

[0005] Second insulating base (2), the front end of second insulating base (2) is equipped with the chamber (22) of front end opening, the inner wall of chamber (22) is equipped with the second guide portion (24) extending in front and back direction, the rear end of second insulating base (2) is equipped with at least two second insulating jack (23), and the front end of each second insulating jack (23) is communicated with chamber (22), and the rear end is located on the rear end surface of second insulating base (2),

[0006] At least two conductor connectors are fixed in each second insulating jack (23), and the front end of each conductor connector is respectively extended from the front end of the second insulating jack (23) where it is located and located in the chamber (22), and the rear end of each conductor connector is respectively connected with wire (5), and each wire (5) is respectively extended from the rear end of second insulating base (2).

[0007] Optionally, a clamping portion is respectively arranged at the rear end of each conductor connector, and the exposed wire (5) core of the front end of each wire (5) is fixed in each clamping portion.

[0008] Optionally, the front end of each conductor connector is a pointed end.

[0009] Optionally, the middle part of each conductor connector is respectively provided with a lateral buckle portion (41) extending laterally,

[0010] A lateral hanging position (25) is further respectively arranged on the hole wall of each second insulating jack (23),

[0011] The lateral buckle part (41) of each conductor connector is limited in the lateral hanging position (25) of the second insulating jack (23).

[0012] Optionally, a lead-in section (26) is arranged on the hole wall of each second insulating jack (23) respectively, and the side where the lead-in section (26) is located is opposite to the side where the lateral hanging position (25) is located,

[0013] The limit section is located at the rear end of the lead-in section (26) and the front end of the lateral hanging position (25), and the hole diameter of the lead-in section (26) gradually decreases from the rear end to the front end to the hole diameter of the limit section.

[0014] The limit section is located at the rear end of the lead-in section (26) and the front end of the lateral hanging position (25), and the hole diameter of the lead-in section (26) gradually decreases from the rear end to the front end to the hole diameter of the limit section.

[0015] When the conductor connector is inserted, the side of the conductor connector opposite to the lateral buckle part (41) is in close contact with the lead-in section (26) and is inserted, and when the lateral buckle part (41) reaches the limit section, the lateral buckle part (41) is elastically deformed under the pressure of the hole wall until the lateral buckle part (41) is limited in the lateral hanging position (25), and the lateral buckle part (41) is reset to the natural state and is limited in the lateral hanging position (25).

[0016] Optionally, at least one through channel is arranged in the second insulating base (2), and each channel is located outside each second insulating jack (23).

[0017] Optionally, at least one identification part in the form of a protrusion and / or a recess is arranged on the rear end surface of the second insulating base (2).

[0018] In a third aspect, the utility model provides a lithium ion battery, comprising: the plug of any one of the above, two wires (5) extending from the rear end of the plug are electrically connected with two electrodes of the lithium ion battery respectively.

[0019] In a third aspect, the utility model provides an electric device, and the power plug of the electric device is the plug of any one of the above, and two ends of two wires (5) extending from the rear end of the plug are electrically connected with a driving circuit of the electric device respectively.

[0020] As can be seen from the above, the plug of the embodiment is accurate in plug positioning, labor-saving and smooth in plugging and unplugging, and high in plugging and unplugging stability. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the principles of the present application.

[0022] Figure 1 A perspective structural schematic view of the male plug provided in the first embodiment of the present application;

[0023] Figure 2 An assembly structural schematic view of the male plug provided in the first embodiment of the present application;

[0024] Figure 3 A sectional structural schematic view of the male plug provided in the first embodiment of the present application;

[0025] Figure 4 A right view structural schematic view of the male plug provided in the first embodiment of the present application;

[0026] Figure 5 A left view structural schematic view of the male plug provided in the first embodiment of the present application;

[0027] Figure 6 A structural schematic view of the male plug provided in the first embodiment of the present application and the female plug provided in the second embodiment of the present application being connected and plugged;

[0028] Figure 7 A sectional structural schematic view of the male plug provided in the first embodiment of the present application and the female plug provided in the second embodiment of the present application being connected and plugged;

[0029] Figure 8 A perspective structural schematic view of the female plug provided in the second embodiment of the present application;

[0030] Figure 9 Another perspective structural schematic view of the female plug provided in the second embodiment of the present application;

[0031] Figure 10 An assembly structural schematic view of the female plug provided in the second embodiment of the present application;

[0032] Figure 11 A sectional structural schematic view of the female plug provided in the second embodiment of the present application.

[0033] 1: first insulating base; 11: plugging part; 12: first plug-pull handle;

[0034] 13: first insulating insertion hole; 14: first guide part; 15: first lateral window part;

[0035] 6: second metal piece; 61: bending part; 62: limiting section;

[0036] 3: conductor female connector; 31: conductor insertion tube; 33: second lateral window portion;

[0037] 2: second insulating base; 21: connector end; 22: cavity; 23: second insulating receptacle;

[0038] 24: second guide portion; 25: lateral hanging portion; 26: lead-in section; 27: second plug handle portion;

[0039] 4: conductor male connector; 41: lateral clamping portion; 5: conductor wire. DETAILED DESCRIPTION

[0040] The utility model will be combined with the drawings and specific embodiments to be explained in detail hereinafter, in this utility model, the illustrative embodiment and the explanation of the utility model are used to explain the utility model, but not as the limitation of the utility model. EMBODIMENT

[0041] Referring to Figures 1-6 .

[0042] The embodiment provides a plug, specifically a male plug. It mainly includes an insulating base (marked as a first insulating base 1) as a male plug, and at least two conductor plugs.

[0043] Each conductor plug can be a male plug or a female plug, and the embodiment takes a conductor female connector 3 as an example.

[0044] The first insulating base 1 includes a connector end 11 at the front end for connecting with other plugs, a plug handle portion (marked as a first plug handle portion 12) at the rear end for holding, and at least two insulating receptacles (all marked as first insulating receptacles 13) penetrating through the front and rear.

[0045] The connector end 11 of the first insulating base 1 is an insulating male plug for connecting with a female plug. A guide portion (marked as a first guide portion 14) extending in the front-rear direction is further arranged on the outer side of the connector end 11, wherein the first guide portion 14 can be designed as a groove matched with the convex strip of the inner wall of the matched female plug as shown in the figure, can be designed as a convex strip matched with the groove of the female plug, or can be other designs.

[0046] The first insulating receptacle 13 is used for accommodating and fixing the conductor female connector 3. Each first insulating receptacle 13 penetrates through the connector end 11 and the first plug handle portion 12 respectively, and forms a port on the front end face and the rear end face of the first insulating base 1 respectively. Each conductor female connector 3 is fixed in each first insulating receptacle 13 and serves as a connector conductor connecting piece.

[0047] The front end of each conductor connector female piece 3 is located in the front end socket of the first insulating jack 13 where it is located, without exceeding the front end socket. It has good moisture and dust resistance, and during the plugging process, the possibly electrified conductor connector female piece 3 is completely located in the first insulating base 1, completely isolated from the user, avoiding the risk of electric shock, and having good use safety.

[0048] When plugged with the external female connector, the plugging part 11 of the front end of the male connector of the present embodiment is inserted into the cavity 22 of the opposite female connector, and the conductor connector male piece 4 located in the cavity 22 of the opposite female connector is inserted into the conductor connector female piece 3 of the male connector of the present embodiment, realizing the electrical connection plugging between the plugs.

[0049] The middle part of each conductor connector female piece 3 of the present embodiment is fixed in the first insulating base 1, and the rear end is connected with a wire 5, and the rear end of the two wires 5 extends from the rear end of the first insulating base 1 for electrical connection with external circuits (such as but not limited to power supply).

[0050] In addition, a first guide part 14 is provided on the outer side of the plugging part 11, and when plugged with the external female connector, the second guide part 24 of the inner wall of the cavity 22 of the front end of the plugged female connector can match the first guide part 14 on the outer side of the male connector of the present embodiment, so that the female connector is pushed along the guide part to completely match the male connector of the present embodiment, and the conductor connector male piece 4 on the female connector is accurately and completely inserted into the conductor connector female piece 3 located in each first insulating jack 13 of the male connector of the present embodiment, avoiding the problem of conductor connector loosening or distortion caused by plugging misalignment which cannot be seen, and at the same time, the design is also conducive to improving the comfort of plugging, making the plugging more labor-saving.

[0051] The present embodiment provides a structure of a conductor connector female piece 3, a conductor insertion tube 31 with the opening facing forward is formed at the front end of the conductor connector female piece 3, and when plugged, the conductor connector male piece 4 on the opposite female connector is inserted into the conductor insertion tube 31 at the front end, realizing electrical connection.

[0052] The conductor insertion tube 31 at the front end of each conductor connector female piece 3 can be but not limited to formed by bending a metal sheet (denoted as a first metal piece) at the front end, the two opposite edges of the bent first metal piece do not adhere to each other but leave a certain gap, the length direction of the gap is parallel to the axial direction of the conductor insertion tube 31, and the width of the gap at each position is the same. When the conductor connector male piece 4 on the opposite female connector is inserted into the conductor insertion tube 31 at the front end of the male connector of the present embodiment, the conductor insertion tube 31 slightly elastically expands, the gap on the conductor insertion tube 31 increases, and the conductor insertion tube 31 is tightly limited between the outer wall of the inserted conductor connector male piece 4 and the inner wall of the first insulating jack 13 where the conductor connector female piece 3 is located, and is not easy to loosen.

[0053] In the conductor insertion tube 31 at the front end of each conductive female connector piece, a metal piece (referred to as second metal piece 6) is further installed, such as but not limited to a metal strip or a metal sheet with elastic deformation, and at least one bending portion 61 is provided in the middle of the second metal piece 6. The front end of the second metal piece 6 is fixed in the conductor insertion tube 31, and the middle of the second metal piece 6 and the bending portion 61 in the middle are free ends, hanging in the middle of the conductor insertion tube 31. The rear end of the second metal piece 6 is also a free end, extending to the rear end of the conductor insertion tube 31.

[0054] When the conductor male connector piece 4 of the opposite female connector is inserted into the conductor insertion tube 31 of the conductor female connector piece 3 of the male connector of the present embodiment, the conductor male connector piece 4 is in close contact with and has interaction pressure with the at least one bending portion 61 in the middle of the second metal piece 6 in the conductor insertion tube 31, and the inserted conductor male connector piece 4 is tightly limited in the conductor insertion tube 31. Under the action of pressure, the second metal piece 6 elastically deforms, further pressing the conductor male connector piece 4 in the conductor insertion tube 31, so as to have good electrical contact, strengthen the electrical conductivity, and not easy to loosen, improve the plugging reliability between the male connector and the external female connector.

[0055] As an illustration of the present embodiment, a lateral window portion (referred to as first lateral window portion 15) which is open to the outside and communicates with the outside can also be provided on each first insulating insertion hole 13 of the first insulating base 1; at the same time, a lateral window portion (referred to as second lateral window portion 33) which is open to the outside and communicates with the outside can also be provided on the conductor insertion tube 31 at the front end of each conductor female connector piece 3. When each conductor female connector piece 3 is fixed in each first insulating insertion hole 13 of the first insulating base 1, the second lateral window portion 33 on each conductor female connector piece 3 is opposite to the first lateral window portion 15 on the first insulating insertion hole 13 where it is located, forming a lateral window portion which communicates with the outside for each conductor insertion tube 31.

[0056] Further, the end section of the front end of each second metal piece 6 located in the conductor insertion tube 31 at the front end of the conductor plug female piece 3 is also connected or bent to extend a limiting section 62, the front end of the limiting section 62 is connected or integrated with the front end of the second metal piece 6, forming an acute angle a; the rear end of the limiting section 62 extends out of the second lateral window part 33 and is located in the first lateral window part 15. Each bending part 61 of the middle section of the second metal piece 6 is specifically bent away from the first lateral window part 15 and the second lateral window part 33, and the bending part 61 is at a certain distance from the hole wall to allow the inserted conductor plug male piece 4 to be inserted. When the conductor plug male piece 4 is inserted, the inserted conductor plug male piece 4 abuts at least one bending part 61 of the second metal piece 6, the second metal piece 6 elastically deforms, the rear end of the second metal piece 6 moves backward, and the distance between the bending part 61 and the second lateral window part 33 decreases. Under the elastic force of the second metal piece 6, the inserted conductor plug male piece 4 is tightly inserted into the insertion hole of the conductor plug female piece 3, maintaining good conductor contact connection and being not easy to slide out and fall off. The inner wall of the chamber 22 of the female plug at the opposite end is tightly pressed against the first lateral window part 15, and the end of the limiting section 62 located in the first lateral window part 15 abuts against the inner wall of the chamber 22 of the female plug at the opposite end, forming an abutting and engaging relationship, avoiding the plug from loosening.

[0057] It needs to be further explained that, preferably, the rear end free end of the second metal piece 6 abuts against the hole wall of the conductor insertion tube 31 on the same side as the second lateral window part 33, and cannot displace radially outward under the resistance of the hole wall but can only move along the hole wall. Under the extrusion of the inserted conductor plug male piece 4, the middle bending part 61 of the second metal piece 6 elastically deforms, its rear end free end can only move backward under the limitation of the hole wall and is prohibited from moving in other directions. Under the pressure, the middle bending part 61 of the second metal piece 6 deviates toward the second lateral window part 33, and the deformation of the second metal piece 6 has a restoring deformation tendency. The inserted conductor plug male piece 4 is tightly limited in the conductor insertion tube 31 and is tightly pressed by the elastic deformation, and is not easy to come off, ensuring the electrical connection reliability between the conductor plug male piece 4 and the conductor plug female piece 3.

[0058] When the male plug of the present embodiment is applied to a discharge plug of a lithium ion battery, the battery pack includes a lithium ion battery body, the total positive "+" and the total negative "-" of the lithium ion battery body are electrically connected to the two wires 5 at the rear end of the male plug of the present embodiment, the lithium ion battery discharges and outputs current to drive an external power equipment connected to the male plug of the present embodiment. The lithium ion battery body can but is not limited to include a plurality of lithium ion cells, each lithium ion cell is electrically connected together in series, parallel or a combination of series and parallel, and as a whole provides current to the outside.

[0059] When the plug of the embodiment is used as a charging plug of a lithium ion battery, the two conductive wires 5 at the rear end of the male plug of the embodiment are respectively electrically connected to the positive pole "+" and the negative pole "-" of each lithium ion cell of the battery pack. The plug of the embodiment is connected to the plug of an external power source, and the current input from the charging power source is respectively input to each lithium ion cell through the male plug of the embodiment to charge each cell.

[0060] The two plugs of the embodiment can also be simultaneously selected as a discharging plug and a charging plug of a lithium ion battery.

[0061] The plug of the embodiment can also be used as a power plug of an electric device. The two ends of the two conductive wires 5 at the rear end of the plug of the embodiment are respectively electrically connected to the driving circuit of the electric device to introduce external current to drive the electric device.

[0062] The plug of the embodiment has a simple structure and is conducive to miniaturization design. The application of the plug of the embodiment to a lithium ion battery pack and a power device is conducive to the miniaturization design of the products and facilitates the use of people.

[0063] In the embodiment, all the conductor connectors 3 of the male plug of the embodiment are located in the first insulating insertion hole 13. Specifically, the front end does not protrude beyond the front end insertion port, and the rear end is completely located in front of the rear end insertion port and does not protrude. The plug has good moisture-proof and dust-proof properties, and is conducive to avoiding accidental contact with the conductive part by the user, thereby improving the safety of electricity use.

[0064] As an example of the embodiment, the rear end of each conductor connector 3 of the male plug of the embodiment is formed with a clamping part. Each clamping part can be but is not limited to a sheet-shaped metal at the end. Each clamping part tightly clamps the exposed wire 5 core of the front end of the wire 5. Each wire 5 extends from the rear end of the first insulating base 1 to be electrically connected to the positive and negative poles of an external power source or an electric device.

[0065] As an example of the embodiment, the first insertion and pulling handle 12 of the first insulating base 1 is provided with a protruding part (such as a rib part) and / or a recessed part for facilitating the positioning and holding of the hand. The shape can be strip-shaped or net-shaped. This is conducive to facilitating the insertion and pulling operation of the user, improving the convenience of use, and avoiding hand slipping during the insertion and pulling process.

[0066] As an example of the embodiment, the outer side of the insertion end 21 (which is in contact with the inner wall of the female plug to be connected) of the first insulating base 1 of the male plug of the embodiment is further provided with a buckle hanging position. When the plug of the embodiment is connected to an external female plug, the buckle hanging position (such as a recessed position, which is the second example of the embodiment) on the outer side of the insertion part 11 of the male plug is buckled and limited with the buckle hanging position (such as a protruding part matched with the recessed position) on the inner wall of the cavity 22 of the female plug to be connected to be connected and not easy to be loosened. The design of the insertion is reliable, can also avoid reverse connection, and ensures the safety of the electrical connection.

[0067] As a schematic of the present embodiment, recessed or protruding identification parts, such as positive pole "+" and negative pole "-", are further provided on the rear end face of the first insulating base 1. Each of the identification parts is integrally injection molded with the first insulating base 1.

[0068] In summary, the male plug of the present embodiment is accurate in positioning, labor-saving and smooth in plugging, and has high stability in plugging. Moreover, the structure is compact, which is conducive to the miniaturization of the plug. Embodiment

[0069] Reference Figures 6-11 .

[0070] The present embodiment provides a plug, in particular a female plug, which mainly comprises an insulating base (denoted as second insulating base 2) and at least two conductor connectors, wherein each of the conductor connectors can be a male connector or a female connector. The present embodiment takes the conductor connector male 4 as a schematic.

[0071] The front end of the second insulating base 2 is provided with a chamber 22 with an open front end, and the section close to the front end is a connector end 21 for insertion of the opposite end insulating male plug.

[0072] The rear end of the second insulating base 2 is a second plugging handle 27 for plugging. At least two insulating insertion holes (denoted as second insulating insertion hole 23 as a schematic, and the present embodiment takes two second insulating insertion holes 23 as a schematic) are provided on the rear end of the second insulating base 2. The front end of each second insulating insertion hole 23 is located at the rear end of the chamber 22 and communicates with the chamber 22 at the front end. The rear end of each second insulating insertion hole 23 is located on the rear end face of the second insulating base 2.

[0073] A conductor connector is fixed in each second insulating insertion hole 23, wherein each of the conductor connectors can be a conductor connector male 4 or a conductor connector female 3. The present embodiment takes the conductor connector male 4 as a schematic.

[0074] The front end of each conductor connector male 4 extends into the chamber 22 and has a spacing between each other and a spacing with the inner wall of the chamber 22, for connection with the conductor connector female 3 of the opposite end male plug. The rear end of each conductor connector male 4 is connected with a wire 5, and each wire 5 extends from the rear end of the second insulating base 2 for electrical connection with an external circuit (such as but not limited to a power supply). When the plug of the present embodiment is applied to a lithium ion battery, the wire 5 is electrically connected to the positive pole and the negative pole of the lithium ion battery.

[0075] The front end of each conductor plug male piece 4 of the embodiment does not exceed the front end opening of the chamber 22, compared with the design that the conductor plug male piece extends out of the insulating base, it has good moisture-proof and dust-proof performance, and during the plugging process, the conductor plug male piece 4 which may be electrified is completely located in the second insulating base 2 and is completely isolated from the user, thus avoiding the risk of electric shock and having good use safety.

[0076] A second guide part 24 extending in the front-rear direction is arranged on the inner wall of the chamber 22 of the second insulating base 2, wherein the second guide part 24 can be a protrusion or a recess. In this way, although the conductor plug male piece 4 of the embodiment is completely located in the chamber 22 at the front end of the second insulating base 2, when the male plug of the opposite end is plugged, the first guide part 14 on the outside of the male plug of the opposite end is matched with the second guide part 24 on the inner wall of the chamber 22 at the front end of the female plug of the embodiment, so that the male plug and the female plug of the plug-in connection are smoothly pushed along the guide parts, the conductor plug male piece 4 in the female plug is accurately inserted into the plug-in hole of the conductor plug female piece 3 of the male plug of the opposite end, thus avoiding the problems of conductor plug looseness or distortion caused by plug misalignment which is invisible, and at the same time, the design is also conducive to improving the comfort of plugging and making the plugging more labor-saving.

[0077] As can be seen from the above, the female plug of the embodiment has accurate plug positioning, labor-saving and smooth plugging, and high plugging stability when used. In addition, the structure is compact, which is conducive to the miniaturization of the plug.

[0078] The rear end of each conductor plug male piece 4 of the embodiment is formed with a clamping part, and each clamping part can be but is not limited to a sheet-shaped metal at the end which is bent. The clamping part tightly clamps the exposed wire 5 core at the front end of each wire 5, and each wire 5 extends out of the rear end of the first insulating base 1 to electrically connect with the positive and negative poles of an external power source or electrical equipment.

[0079] The female plug of the embodiment has a simple structure, which is conducive to the miniaturization design of the power plug.

[0080] As an example of the embodiment, the conductor plug male piece 4 of the embodiment can be but is not limited to a conductor insertion tube 31, and can be but is not limited to a solid conductor insertion strip or insertion sheet. As an example of the embodiment, the front end of each conductive insertion strip is preferably designed as a pointed end with gradually decreasing thickness or diameter.

[0081] As an example of the embodiment, at least one side of the middle part of each conductor plug male piece 4 of the embodiment is also provided with a lateral clamping part 41 which laterally extends like a branch. The clamping angle a between the lateral clamping part 41 and the conductor plug male piece 4 is an acute angle or an obtuse angle (i.e. not a straight angle). For example but not limited to, the lateral clamping part 41 extends laterally from the rear to the front of the conductor plug male piece 4 and forms an acute angle with the front end of the conductor plug male piece 4.

[0082] A lateral recessed lateral hanging position 25 is further arranged on the hole wall of each second insulation jack 23 at the rear end of the second insulation base 2, the recessed direction of each lateral hanging position 25 is consistent with the extending direction of the lateral buckle part 41 of the guiding plug-in male element located in the second insulation jack 23, the width of the second insulation jack 23 at the position where the lateral hanging position 25 is located is greater than the widest width of the conductor plug-in male element segment at the position where the lateral hanging part is located. When installing, the conductor plug-in male element 4 with the wire 5 clamped at the rear end is inserted into the second insulation jack 23 from the rear end port of the second insulation base 2, the lateral buckle part 41 of the conductor plug-in male element 4 is elastically deformed under the extrusion of the hole wall of the lateral hanging position 25 extending on the lateral side, when inserted to a certain degree, the lateral buckle part 41 enters the lateral hanging position 25 of the second insulation jack 23, the lateral buckle part 41 is not in contact with the hole wall and is restored to the natural state under the pressure, the lateral buckle part 41 is positioned in the lateral hanging position 25 in the natural state. The design of the lateral buckle part 41 and the lateral hanging position 25 is beneficial to the positioning of the assembly position of the conductor plug-in male element 4 and improves the assembly efficiency. Moreover, the design is beneficial to the positioning of the conductor plug-in male element 4 when plugging with the external plug, the conductor plug-in male element 4 is not easy to displace due to the plugging force, and the durability of the product is improved.

[0083] As an example of the embodiment, a lead-in segment 26 is further arranged on the hole wall of the second insulation jack 23, the lead-in segment 26 is arranged on the side opposite to the side where the hanging position is located and is located at the rear end port of the second insulation jack 23, at the lead-in segment 26 of each second insulation jack 23, the hole diameter gradually decreases from the rear to the front. A limiting segment 62 with a hole diameter greater than the main body of the conductor plug-in male element 4 and smaller than the widest width of the position where the lateral hanging part is located is arranged between the front end of the lateral hanging position 25 and the rear end of the lateral hanging position 25, when the conductor plug-in male element 4 is inserted from the rear to the front, when the lateral buckle part 41 reaches the front of the lateral hanging position 25, the conductor plug-in male element 4 opposite to the lateral hanging part is in contact with the inner wall of the lead-in segment 26, the conductor plug-in male element 4 is pushed along the lead-in segment 26, when the lateral buckle part 41 passes through the limiting segment 62 between the lead-in segment 26 and the lateral hanging position 25, the lead-in segment 26 is elastically deformed under the pressure of the hole wall until the lateral buckle part 41 enters the lateral hanging position 25 and is restored to the natural state, the lateral buckle part 41 is positioned in the lateral hanging position 25.

[0084] As can be seen from the above, the design of the lead-in segment 26 can further facilitate the positioning and assembly of the conductor plug-in male element 4 and improve the assembly efficiency.

[0085] As an example of the embodiment, the front end segment of the conductor plug-in male element 4 can be but is not limited to a flat metal strip, the lateral buckle part 41 is arranged on the lower surface of the flat metal strip.

[0086] As an illustration of the embodiment, a recess or a protrusion (such as a rib) is provided on the outer periphery of the rear end of the second insulating base 2, which can be in the form of a strip or a mesh. This design facilitates the user to insert and pull out the plug, and improves the convenience of use, and avoids the hand from slipping during the insertion and pulling out process.

[0087] As an illustration of the embodiment, a recess or a protrusion (such as a rib) is provided on the outer periphery of the rear end of the second insulating base 2, which can be in the form of a strip or a mesh. This design facilitates the user to insert and pull out the plug, and improves the convenience of use, and avoids the hand from slipping during the insertion and pulling out process.

[0088] When the plug of the embodiment is applied to a lithium ion battery, specifically, the battery pack includes a lithium ion battery body. The lithium ion battery body can include a plurality of lithium ion cells, but is not limited thereto. The lithium ion cells are connected in series, in parallel, or in a combination of series and parallel connection, and are electrically connected together as a whole to provide an external current. The total positive "+" and the total negative "-" of the battery body are electrically connected to the conductor plug of the power output interface (which can be implemented by the plug of the embodiment) of the battery, and the lithium ion battery discharges to output current to drive an external power device.

[0089] When the plug of the embodiment is used as a discharge output plug of a lithium ion battery, the two conductor plug female members 3 as power supply connectors are respectively electrically connected to the total positive "+" and the total negative "-" of the battery pack to output power to an external power device.

[0090] When the plug of the embodiment is used as a charging input plug of a lithium ion battery, the two conductor plug female members 3 as power output connectors are respectively electrically connected to the positive "+" and the negative "-" of each lithium ion cell of the battery pack. The plug of the embodiment is connected to the plug of an external power source, and the current input from the charging power source is input to each lithium ion cell to charge the cells.

[0091] The plug of the embodiment can be used as a discharge plug of a lithium ion battery, or as a charging plug of a lithium ion battery, or as both a discharge plug and a charging plug of a lithium ion battery.

[0092] The plug of the embodiment has a simple structure, which is conducive to the miniaturization design of the battery pack plug.

[0093] The plug of the embodiment can also be used as a power plug of an electric device. The two ends of the two conductive wires 5 extending from the rear end of the plug are respectively electrically connected to the driving circuit of the electric device to introduce external current to drive the electric device.

[0094] The above-described embodiments do not constitute a limitation on the scope of protection of the technical solutions. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the scope of protection of the technical solutions.

Claims

1. A plug, characterized in that Comprising, A second insulating base (2) is provided with a chamber (22) with an open front end at the front end of the second insulating base (2), a second guide portion (24) extending in the front-rear direction is provided on the inner wall of the chamber (22), at least two second insulating jacks (23) are provided at the rear end of the second insulating base (2), the front end of each second insulating jack (23) is communicated with the chamber (22), and the rear end is located at the rear end face of the second insulating base (2), At least two conductor connectors are fixed in each second insulating jack (23), the front end of each conductor connector extends from the front end of the second insulating jack (23) where it is located, and is located in the chamber (22), the rear end of each conductor connector is connected with a wire (5), and the wire (5) extends from the rear end of the second insulating base (2).

2. The plug of claim 1, wherein A clamping portion is provided at the rear end of each conductor connector, and the exposed wire (5) core at the front end of each wire (5) is fixed in each clamping portion.

3. The plug of claim 2, wherein The front end of each conductor connector is a pointed end.

4. The plug of claim 1, wherein A lateral buckle portion (41) extending laterally is further provided at the middle portion of each conductor connector, A lateral recessed lateral hanging position (25) is further provided on the hole wall of each second insulating jack (23), The lateral buckle portion (41) of each conductor connector is limited in the lateral hanging position (25) of the second insulating jack (23) where it is located.

5. The plug of claim 4, wherein A lead-in section (26) is further provided on the hole wall of each second insulating jack (23), the side where the lead-in section (26) is located is opposite to the side where the lateral hanging position (25) is located, The limiting section between the lateral hanging position (25) and the lateral hanging position (25) has a hole diameter that is narrower than the hole diameter at the position of the lateral hanging position (25) and the hole diameter at the position of the lead-in section (26), The limiting section is located at the rear end of the lead-in section (26) and at the front end of the lateral hanging position (25), the hole diameter of the lead-in section (26) gradually decreases from the rear end to the front end to the hole diameter of the limiting section, When the conductor connector is inserted, the side of the conductor connector opposite to the lateral buckle portion (41) tightly abuts the lead-in section (26) for insertion, when the lateral buckle portion (41) reaches the limiting section, the lateral buckle portion (41) elastically deforms under the pressure of the hole wall, until the lateral buckle portion (41) is limited in the lateral hanging position (25), the lateral buckle portion (41) returns to the natural state and is limited in the lateral hanging position (25).

6. The plug of claim 1, wherein At least one through channel is further provided in the second insulating base (2), and each channel is located outside each second insulating jack (23).

7. The plug of claim 1, wherein At least one identification part of protrusion and / or recess is further provided at the rear end surface of the second insulating base (2).

8. A lithium ion battery, comprising: The plug of any one of claims 1 to 7, two wires (5) extending from the rear end of the plug are respectively electrically connected to two electrodes of the lithium ion battery.

9. An electrically powered device, characterised in that, The power plug of the electric device is the plug of any one of claims 1 to 7, two ends of the two wires (5) extending from the rear end of the plug are respectively electrically connected to a driving circuit of the electric device.

Images