Anti-sparking, waterproof and dustproof large-current tight type anti-falling and anti-misplug connector

Abstract

The invention provides an anti-sparking, waterproof and dustproof large-current tight type anti-falling and anti-misplug connector, and relates to the technical field of connectors, the anti-sparking, waterproof and dustproof large-current tight type anti-falling and anti-misplug connector comprises a female head structure and a male head structure, a female head part is fixedly arranged in the female head structure, and a male head part is fixedly arranged in the male head structure; the female head piece comprises a front-end hollow copper column and a first rear-end hollow copper column which are integrally arranged. The contact lining is arranged on the inner side of the front-end hollow copper column, the contact lining comprises the first ring part and the second ring part which are arranged in parallel, the strip-shaped pieces are connected between the first ring part and the second ring part, the middle portions of the strip-shaped pieces deform towards the center of the contact lining, and when the front end of the male head piece is inserted into the front end hole of the female head piece, the strip-shaped pieces deform towards the center of the contact lining. The side wall of the male head piece is located in the center of the contact lining, at the moment, the middle of the strip-shaped piece tightly extrudes and makes contact with the outer side of the front end of the male head piece, a stable electric contact part is formed, and the problems of sparks, serious heating and the like are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and specifically to a large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof functions. Background Art

[0002] A connector is a basic component widely used in electronic systems. It is like a "bridge" for electronic devices, responsible for achieving functions such as electrical connection, signal transmission, and mechanical fixation. Its structure is exquisitely designed, covering multiple parts such as plugs and sockets. Different types of connectors vary in shape, size, and performance according to application scenarios and requirements.

[0003] A large-current compact anti-drop and anti-misplug connector can carry a large current, meet the power supply requirements of high-power devices, avoid misplugging of electrodes during use, and has good anti-drop performance. Such connectors are mostly used in the plugging of device power supplies and the charging interfaces of devices. When traditional large-current compact anti-drop and anti-misplug connectors are in use, due to insufficient consideration of the resistance (contact resistance) of the positive electrode contact part, sparks are likely to appear inside the connector during use, and the heat generation is relatively serious. Therefore, the present invention provides a large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof functions. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof functions, and solves the problem that when traditional large-current compact anti-drop and anti-misplug connectors are in use, due to insufficient consideration of the resistance (contact resistance) of the positive electrode contact part, sparks are likely to appear inside the connector during use, and the heat generation is relatively serious.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] A large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof functions, including a female head structure and a male head structure, the female head structure is matched with the male head structure, and is characterized in that: a female head part is fixedly arranged inside the female head structure, the female head part includes a front-end hollow copper column and a first rear-end hollow copper column which are integrally arranged, a contact lining is arranged inside the front-end hollow copper column, the contact lining includes a first ring part and a second ring part which are arranged in parallel, and a plurality of strip-shaped parts are connected between the first ring part and the second ring part, the strip-shaped parts are arranged obliquely, and the middle part of the strip-shaped part is deformed towards the center of the contact lining;

[0007] A male head part is fixedly arranged inside the male head structure, a front-end copper column corresponding to the front-end hollow copper column is arranged at the first end of the male head part, and a male head part rear-end hollow copper column is arranged at the second end of the male head part;

[0008] Both the first rear-end hollow copper column and the male connector rear-end hollow copper column are connected to the copper wires of the corresponding cables by means of a misaligned reverse buckle structure.

[0009] Preferably, the misaligned reverse buckle structure includes:

[0010] A wire groove hole opened at the end of the first rear-end hollow copper column. A first reverse buckle portion is fixedly provided at the end of the first rear-end hollow copper column, and a plurality of socket portions are opened on the side surface of the first reverse buckle portion;

[0011] A wire sleeve. The wire sleeve is fixedly sleeved on the copper wire of the cable, and a second reverse buckle portion is fixedly provided at the bottom end of the wire sleeve. The second reverse buckle portion corresponds to the first reverse buckle portion, and the width of the second reverse buckle portion corresponds to the width of the socket portion;

[0012] A reverse buckle part. The reverse buckle part includes a copper sheet. Forked parts are provided on both side surfaces of the copper sheet. The reverse buckle part is located inside the socket portion, and the forked parts correspond to the first reverse buckle portion. A head is formed on the copper sheet above the forked parts, and a tail is formed on the copper sheet below the forked parts;

[0013] The tail of the copper sheet is fixedly connected to the copper wire of the cable through a protective sleeve.

[0014] Preferably, a first insulating cover is fixedly installed at the end of the front-end hollow copper column;

[0015] The female connector structure includes:

[0016] A female connector front shell. A triangular plug is fixedly connected to the front end of the female connector front shell. An installation hole for installing the female connector part is opened on the triangular plug. A necking portion is provided at the end of the installation hole, and the female connector part is located inside the installation hole;

[0017] A female connector rear shell. A first insertion head portion is provided at the front end of the female connector rear shell. A first necking support portion is fixedly provided at the front end of the first insertion head portion. A first step is formed at the connection between the front-end hollow copper column and the first rear-end hollow copper column. The first necking support portion corresponds to the first step, and the front end of the first insertion head portion is inserted and fixedly connected to the rear end of the female connector front shell.

[0018] Preferably, a first protrusion is fixedly connected to the outside of the first insertion head portion, and a first clamping hole corresponding to the first protrusion is opened on the side surface of the female connector front shell.

[0019] Preferably, the male connector structure includes:

[0020] A male front shell, wherein a middle guide piece is fixedly connected to the inner center of the male front shell, a middle guide hole corresponding to the middle guide piece is provided at the front end of the triangular plug, a side guide piece is fixedly connected to the inner side wall of the male front shell, a side guide groove corresponding to the side guide piece is provided on the side of the triangular plug, and the male head piece is arranged on the inner side of the male front shell;

[0021] A male rear shell, the front end of which is fixedly connected to a second plug portion, the front end of which is fixedly connected to a second necked support portion, a side surface of the male component is provided with an annular portion corresponding to the second necked support portion, and the front end of the second plug portion is inserted into the rear end of the male front shell and fixedly connected;

[0022] The outer side of the male front shell is fixedly connected with a main bayonet component, and the side surface of the female front shell is fixedly connected with a main buckle component corresponding to the main bayonet component.

[0023] The invention provides a high-current tight-fitting anti-dropping and anti-wrong-insertion connector which is spark-proof, waterproof and dustproof.

[0024] It has the following beneficial effects:

[0025] 1. The present invention provides a contact liner on the inner side of the front hollow copper column, the contact liner includes a first ring portion and a second ring portion which are arranged in parallel, a plurality of strips are connected between the first ring portion and the second ring portion, the strips are arranged obliquely, and the middle portion of the strips is deformed toward the center of the contact liner, when the front end of the male component is inserted into the front end hole of the female component, the side wall of the male component is located at the center of the contact liner, at this time, the middle portion of the strips is tightly pressed and contacts the outer side of the front end of the male component, forming a stable electrical contact portion, avoiding sparks, severe heating and other problems, making the connector have a longer service life and safer to use.

[0026] 2. The present invention designs a dislocated buckle structure, which adopts a structure composed of a wire sleeve, a second buckle part, a copper wire, a protective sleeve, and a buckle piece. When in use, the wire sleeve is first put on the copper wire of the cable, and then the wire sleeve is pressed together with a wire clamp. Then the second buckle part is controlled to be aligned with the socket part, and the wire sleeve and the second buckle part are inserted into the wire slot hole. Then the wire sleeve and the second buckle part are rotated to make the second buckle part correspond to the first buckle part. Then the buckle piece is inserted from the socket part. The buckle piece limits the rotation of the wire sleeve relative to the wire slot hole, and then the protective sleeve is put on. The protective sleeve is pressed together with the wire clamp again. The structure is tightly connected. When the wire harness is pulled, the interface can withstand greater force and ensure that the connection between the copper wire and the female / male connector will not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1Schematic diagram of the mating of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0028] Figure 2 Explosion diagram of the female head structure of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0029] Figure 3 Explosion diagram of the female head terminal of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0030] Figure 4 Explosion diagram of the male head structure of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0031] Figure 5 Cross-sectional schematic diagram of the tail wiring structure of the female head terminal of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0032] Figure 6 Tail schematic diagram of the female head terminal of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0033] Figure 7 Three-dimensional schematic diagram of the wire sleeve of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0034] Figure 8 Schematic diagram of the tail wiring structure of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention;

[0035] Figure 9 Three-dimensional schematic diagram of the reverse fastener of the large-current compact anti-drop and anti-misinsertion connector with fire prevention, waterproof and dustproof functions proposed by the present invention.

[0036] Among them, 1. female structure; 101, female front shell; 102, triangular plug; 103, mounting hole; 103a, necking portion; 104, middle guide hole; 105, side guide groove; 106, front hollow copper column; 107, first insulation cover; 108, first rear hollow copper column; 108a, wire slot hole; 108b, first buckle portion; 108c, socket portion; 109, contact lining; 109a, strip; 109b, first ring portion; 109c, second ring portion; 1010, female back shell; 1011, first plug portion; 1012, first necking support portion; 1013, first protrusion; 1014, first clamping hole; 1015, main clamping member; 2. male structure; 201, male front shell; 202, main clamping member; 203, middle guide member; 2 04, side guide; 205, male connector; 205a, first male connector; 205a1, first front copper pillar; 205a2, second rear hollow copper pillar; 205a3, first annular portion; 205a4, first insulating head; 205b, second male connector; 205b1, second front copper pillar; 205b2, third rear hollow copper pillar; 205b3, second annular portion; 205b4, first insulating member; 205b5, double-headed copper pillar; 205b6, second insulating head; 206, second clamping hole; 207, male connector back shell; 208, second protrusion; 209, second shrinkage support portion; 3, wire sleeve; 4, second undercut portion; 5, copper wire; 6, protective sleeve; 7, undercut member; 701, copper sheet; 701a, head; 701b, tail; 702, fork portion. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] like Figure 1 - Figure 9 As shown, an embodiment of the present invention provides a high-current, tight, anti-dropping and anti-misplugging connector that is anti-spark, waterproof and dustproof, and is used for convenient connection between two sets of wiring harnesses. It specifically includes a female structure 1 and a male structure 2. The female structure 1 cooperates with the male structure 2 to achieve the plug-in connection between the female structure 1 and the male structure 2.

[0040] In order to facilitate the description of the structures of the female structure 1 and the male structure 2, when the female structure 1 and the male structure 2 are plugged together, the direction of the female structure 1 and the various structures of the female structure 1 facing the male structure 2 is the front, and the direction of the opposite direction is the rear; the direction of the male structure 2 and the various structures of the male structure 2 facing the female structure 1 is the front, and the direction of the opposite direction is the rear.

[0041] A female head component is fixedly arranged inside the female head structure 1, and a male head component 205 is fixedly arranged inside the male head structure 2 (the rear ends of the female head component and the male head component 205 correspond to the copper wire 5 of the connecting cable). When the female head structure 1 and the male head structure 2 are plugged in, the front end of the female head component and the front end of the male head component 205 are also plugged in and contacted to achieve electrical contact connection. The female head component includes a front end hollow copper column 106 and a first rear end hollow copper column 108 which are integrally arranged. A contact lining 109 is arranged on the inner side of the front end hollow copper column 106. The contact lining 109 includes a first ring portion 109b and a second ring portion 109c which are arranged in parallel. A plurality of strip members 109a are connected between the first ring portion 109b and the second ring portion 109c. The strip member 109a is arranged obliquely, and the middle part of the strip member 109a is deformed toward the center of the contact lining 109, such as Figure 3 The first ring portion 109b and the second ring portion 109c shown in the figure are both circles formed by a rolling process, and there is no need to use welding to fix the joints (the first ring portion 109b and the second ring portion 109c can be considered to be a C-shaped structure that is approximately circular). The first ring portion 109b, the second ring portion 109c and the strip member 109a are all manufactured by integral forming. For example, a mesh plate is formed by stamping a sheet material, and then the two ends of the mesh plate are offset and moved and rolled, and finally a mold is used for final shaping. The first end of the male component 205 is provided with a front end copper column corresponding to the front end hollow copper column 106, and the second end of the male component 205 is provided with a male component rear end hollow copper column.

[0042] When the front end of the male component 205 is inserted into the front end hole of the female component, the side wall of the male component 205 is located at the center of the contact lining 109. At this time, the middle part of the strip 109a tightly squeezes and contacts the outer side of the front end of the male component 205 to form a stable electrical contact part, avoiding sparks, severe heat and other problems, making the connector have a longer service life and safer to use.

[0043] The first rear end hollow copper column 108 and the rear end hollow copper column of the male connector both adopt a staggered inverted buckle structure to be connected to the corresponding copper wire 5 of the cable. The rear end of the first rear end hollow copper column 108 and the rear end hollow copper column of the male connector adopt the same structure, and the structure of the first rear end hollow copper column 108 connected to the copper wire 5 of the cable is consistent. The staggered inverted buckle structure of the first rear end hollow copper column 108 connected to the copper wire 5 of the cable is described in detail below, so that those skilled in the art can realize the connection between the rear end hollow copper column of the male connector and the copper wire 5 of the cable.

[0044] Specifically, as shown in Figure 5 - Figure 9 As shown in Figure 9 , the misaligned reverse buckle structure includes: a wire sleeve 3, a second reverse buckle portion 4, a copper wire 5, a protective sleeve 6, and a reverse buckle piece 7; a wire groove hole 108a is opened at the end of the first rear-end hollow copper column 108, and a first reverse buckle portion 108b is fixedly arranged at the end of the first rear-end hollow copper column 108. The first reverse buckle portion 108b is bent inward toward the inside of the first rear-end hollow copper column 108, and a plurality of socket portions 108c are opened on the side surface of the first reverse buckle portion 108b. The wire sleeve 3 is fixedly sleeved on the copper wire 5 of the cable, and a second reverse buckle portion 4 is fixedly arranged at the bottom end of the wire sleeve 3. The second reverse buckle portion 4 corresponds to the first reverse buckle portion 108b, and the width of the second reverse buckle portion 4 corresponds to the width of the socket portion 108c. In this way, the second reverse buckle portion 4 can be inserted from the socket portion 108c into the inside of the wire groove hole 108a, and then the wire sleeve 3 is rotated to make the second reverse buckle portion 4 correspond to the first reverse buckle portion 108b. The reverse buckle piece 7 includes a copper sheet 701, and bifurcated portions 702 are arranged on both side surfaces of the copper sheet 701. The reverse buckle piece 7 is located inside the socket portion 108c, and the bifurcated portions 702 correspond to the first reverse buckle portion 108b. A head 701a is formed on the copper sheet 701 above the bifurcated portions 702, and a tail 701b is formed on the copper sheet 701 below the bifurcated portions 702. The tail 701b of the copper sheet 701 is fixedly connected to the copper wire 5 of the cable through the protective sleeve 6.

[0045] When in use, first sleeve the wire sleeve 3 on the copper wire 5 of the cable, then use a wire clamp to press the wire sleeve 3, and then control the second reverse buckle portion 4 to be aligned with the socket portion 108c. Insert the wire sleeve 3 and the second reverse buckle portion 4 into the inside of the wire groove hole 108a. Generally, a hexagonal wire clamp is used to avoid the wire sleeve 3 being deformed too flat, resulting in the situation that the wire sleeve 3 cannot be inserted into the wire groove hole 108a. Then rotate the wire sleeve 3 and the second reverse buckle portion 4 to make the second reverse buckle portion 4 correspond to the first reverse buckle portion 108b, and then insert the reverse buckle piece 7 from the socket portion 108c. During the insertion process, the bifurcated portions 702 on the side surface of the copper sheet 701 will deform inward, enabling it to easily cross the socket portion 108c. The end of the bifurcated portion 702 abuts against the inside of the first reverse buckle portion 108b, so that the reverse buckle piece 7 can limit the rotation of the wire sleeve 3 relative to the wire groove hole 108a. Then sleeve the protective sleeve 6 (the protective sleeve 6 needs to be sleeved on the cable in advance and finally slid reversely on the outside of the tail 701b of the reverse buckle piece 7), and use the wire clamp to press the protective sleeve 6 again. This structure is tightly connected. During the pulling process of the wire harness, the interface can withstand greater force, and it is ensured that the connection between the copper wire 5 and the female head piece / male head piece 205 will not fall off.

[0046] In an embodiment, the female head structure 1 includes: a female head piece, a female head front shell 101, and a female head rear shell 1010.

[0047] The female connector includes a front hollow copper column 106 and a first rear hollow copper column 108 which are integrally arranged. A first insulating cover 107 is fixedly installed at the end of the front hollow copper column 106. The first insulating cover 107 is a ceramic structure. After the female connector structure 1 is installed, the user will not be electrocuted if he touches the first insulating cover 107 by mistake. A small amount of water stains at the front end of the female connector structure 1 will not affect the female connector. A triangular plug 102 is fixedly connected to the front end of the female connector front shell 101. A mounting hole 103 for mounting the female connector is provided on the triangular plug 102. The mounting hole 103 is arranged at the end of the triangular plug 102. There is a necked portion 103a, the female connector is located on the inner side of the mounting hole 103, the first insulating cover 107 at the front end of the female connector rests against the end of the necked portion 103a, the front end of the female connector rear shell 1010 is provided with a first plug portion 1011, the front end of the first plug portion 1011 is fixedly provided with a first necked support portion 1012, the center of the first necked support portion 1012 is a hole, the connection between the front end hollow copper column 106 and the first rear end hollow copper column 108 forms a first step, the first necked support portion 1012 corresponds to the first step, the front end of the first plug portion 1011 is inserted into the rear end of the female connector front shell 101 and fixedly connected.

[0048] like Figure 2 As shown in the figure, after the female connector front shell 101 and the female connector rear shell 1010 are fixedly installed, the first insulating cover 107 at the front end of the female connector is against the end of the necked portion 103a, and the first step in the middle of the female connector is against the first necked support portion 1012, thereby achieving the female connector front shell 101 and the female connector rear shell 1010 clamping and fixing the female connector.

[0049] In one embodiment, a first protrusion 1013 is fixedly connected to the outside of the first plug portion 1011, and a first clamping hole 1014 corresponding to the first protrusion 1013 is opened on the side of the female front shell 101, so that the first plug portion 1011 and the female front shell 101 are plugged and fixed. Generally, multiple groups of first protrusions 1013 and first clamping holes 1014 are required, and a guiding structure can also be designed for the plug-in connection between the first plug portion 1011 and the female front shell 101 to further ensure the stability of the connection between the two.

[0050] In one embodiment, the male connector structure 2 includes a male connector front shell 201 , a male connector rear shell 207 and a male connector component 205 .

[0051] A middle guide piece 203 is fixedly connected to the inner center position of the male front shell 201, and a middle guide hole 104 corresponding to the middle guide piece 203 is opened at the front end of the triangular plug 102. During the plugging process of the male front shell 201 and the triangular plug 102, the middle guide piece 203 is inserted into the middle guide hole 104 to increase the matching accuracy of the male front shell 201 and the triangular plug 102, and the insertion is tighter. A side guide piece 204 is fixedly connected to the inner side wall of the male front shell 201, and a side guide groove 105 corresponding to the side guide piece 204 is opened on the side of the triangular plug 102. The side guide piece 204 and the side guide groove 105 are designed as a set, which is a fool-proof design. When the side guide piece 204 does not correspond to the side guide groove 105, the triangular plug 102 cannot be inserted into the male front shell 201. The male piece 205 is arranged on the male front shell The inner side of 201 is generally designed with a mounting hole on the inner side of the male front shell 201, and a ring portion is provided on the side of the male component 205. The front end of the male component 205 passes through the mounting hole, and it relies on the front end step of the ring portion to resist the male component 205. The front end of the male rear shell 207 is fixedly connected with the second plug portion, and the front end of the second plug portion is fixedly connected with the second necked support portion 209. The center of the second necked support portion 209 is also provided with a circular hole, and the side of the male component 205 is provided with a ring portion corresponding to the second necked support portion 209. The front end of the second plug portion is inserted into the rear end of the male front shell 201 and fixedly connected. When the male front shell 201 is connected to the male rear shell 207, the front end of the second plug portion resists against the rear end of the ring portion, and the mounting hole on the inner side of the male front shell 201 resists against the front end of the ring portion, thereby realizing the fixation of the male component 205 to the male front shell 201 and the male rear shell 207.

[0052] In order to enable the female structure 1 and the male structure 2 to be directly locked when they are plugged together, a main snap-in component 202 is fixedly connected to the outer side of the male front shell 201, and a main fastener 1015 corresponding to the main snap-in component 202 is fixedly connected to the side of the female front shell 101, and the main fastener 1015 can be snapped and inserted into the main snap-in component 202.

[0053] In one embodiment, a second protrusion 208 is fixedly connected to the side of the second plug portion, and a second clamping hole 206 corresponding to the second protrusion 208 is opened on the side of the male front shell 201. The second protrusion 208 cooperates with the second clamping hole 206 to realize the clamping fixation of the male front shell 201 and the male rear shell 207.

[0054] In one embodiment, the spark-proof, waterproof and dustproof high-current tight-fitting anti-dropping and anti-misinsertion connector is a three-wire connector (i.e., a connecting wire with positive, negative and ground poles), and three groups of female and male connectors 205 are provided.

[0055] Specifically, the structures of the three sets of female connector parts are the same. The male connector 205 includes: a first male connector 205a and a second male connector 205b. The second male connector 205b serves as the positive electrode, and there are two sets of the first male connectors 205a, which are respectively used as the negative electrode and the ground.

[0056] In one embodiment, the first male connector 205a includes: a second rear-end hollow copper column 205a2 and a first front-end copper column 205a1 which are integrally provided. A first annular portion 205a3 is fixedly provided at the connection of the second rear-end hollow copper column 205a2 and the first front-end copper column 205a1. Steps are formed at both the front and rear ends of the first annular portion 205a3. A first insulating head 205a4 is fixedly installed at the end of the first front-end copper column 205a1.

[0057] In one embodiment, the second male connector 205b includes: a third rear-end hollow copper column 205b2 and a second front-end copper column 205b1 which are integrally provided. A second annular portion 205b3 is fixedly provided at the connection of the third rear-end hollow copper column 205b2 and the second front-end copper column 205b1. Steps are formed at both the front and rear ends of the second annular portion 205b3. A first insulating member 205b4 is fixedly connected to the front end of the second front-end copper column 205b1. A double-headed copper column 205b5 is fixedly connected to the front end of the first insulating member 205b4. A second insulating head 205b6 is fixedly connected to the front end of the double-headed copper column 205b5.

[0058] Moreover, the outer dimensions of the first male connector 205a and the second male connector 205b are the same. Therefore, the length of the second front-end copper column 205b1 is shorter than that of the first front-end copper column 205a1. During the actual plugging process, the wire harnesses (negative electrode, ground wire) corresponding to the two sets of the first male connectors 205a will come into contact first, and then the wire harness corresponding to the second male connector 205b will come into contact last.

[0059] The second insulating head 205b6, the first insulating member 205b4, and the first insulating head 205a4 are all made of ceramic material. The design purposes of the second insulating head 205b6 and the first insulating head 205a4 are to protect the front end of the male connector 205, and when in use, they can avoid the risk of electric shock caused by the front end of the male connector 205 coming into contact with people.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-current compact anti-drop and anti-misplug connector with anti-spark, waterproof and dustproof functions, comprising a female head structure (1) and a male head structure (2), wherein the female head structure (1) cooperates with the male head structure (2), and is characterized in that: Inside the female head structure (1), a female head component is fixedly arranged. The female head component includes a front-end hollow copper column (106) and a first rear-end hollow copper column (108) which are integrally arranged. Inside the front-end hollow copper column (106), a contact lining (109) is arranged. The contact lining (109) includes a first ring portion (109b) and a second ring portion (109c) which are arranged in parallel. Between the first ring portion (109b) and the second ring portion (109c), a plurality of strip-shaped members (109a) are connected. The strip-shaped members (109a) are inclined, and the middle part of the strip-shaped members (109a) is deformed towards the center of the contact lining (109). Inside the male head structure (2), a male head component (205) is fixedly arranged. At the first end of the male head component (205), a front-end copper column corresponding to the front-end hollow copper column (106) is arranged. At the second end of the male head component (205), a rear-end hollow copper column of the male head component is arranged. Both the first rear-end hollow copper column (108) and the rear-end hollow copper column of the male head component are connected to the copper wire (5) of the corresponding cable by a dislocation and reverse buckling structure.

2. The large-current compact anti-drop and anti-misinsertion connector for preventing ignition, water and dust according to claim 1, characterized in that, The dislocation and reverse buckling structure includes: A wire groove hole (108a) opened at the end of the first rear-end hollow copper column (108). At the end of the first rear-end hollow copper column (108), a first reverse buckling portion (108b) is fixedly arranged, and a plurality of socket portions (108c) are opened on the side surface of the first reverse buckling portion (108b). A wire sleeve (3) which is fixedly sleeved on the copper wire (5) of the cable. At the bottom end of the wire sleeve (3), a second reverse buckling portion (4) is fixedly arranged. The second reverse buckling portion (4) corresponds to the first reverse buckling portion (108b), and the width of the second reverse buckling portion (4) corresponds to the width of the socket portion (108c).

3. The large-current compact anti-drop and anti-misplug connector with anti-spark, waterproof and dustproof features according to claim 2, characterized in that, The dislocation and reverse buckling structure includes: A reverse buckling part (7). The reverse buckling part (7) includes a copper sheet (701). On both side surfaces of the copper sheet (701), a bifurcated part (702) is arranged. The reverse buckling part (7) is located inside the socket portion (108c), and the bifurcated part (702) corresponds to the first reverse buckling portion (108b). On the copper sheet (701) and above the bifurcated part (702), a head (701a) is formed. On the copper sheet (701) and below the bifurcated part (702), a tail (701b) is formed. The tail (701b) of the copper sheet (701) is fixedly connected to the copper wire (5) of the cable through a protective sleeve (6).

4. The large-current compact anti-drop and anti-misinsertion connector with anti-sparking, waterproof and dustproof features according to claim 1, characterized in that: At the end of the front-end hollow copper column (106), a first insulating cover (107) is fixedly installed. The female head structure (1) includes: A female head front shell (101). At the front end of the female head front shell (101), a triangular plug (102) is fixedly connected. On the triangular plug (102), an installation hole (103) for installing the female head component is opened. At the end of the installation hole (103) on the triangular plug (102), a reduced diameter portion (103a) is arranged. The female head component is located inside the installation hole (103).

5. The large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof functions according to claim 4, characterized in that: The female head structure (1) further includes: Female header rear housing (1010), a first plug portion (1011) is provided at the front end of the female header rear housing (1010), a first necking support portion (1012) is fixedly provided at the front end of the first plug portion (1011), a first step is formed at the connection between the front-end hollow copper column (106) and the first rear-end hollow copper column (108), the first necking support portion (1012) corresponds to the first step, and the front end of the first plug portion (1011) is inserted into and fixedly connected to the rear end of the female header front housing (101).

6. The large-current compact anti-drop and anti-misplug connector with anti-sparking, waterproof and dustproof features according to claim 5, characterized in that: A first protrusion (1013) is fixedly connected to the outside of the first plug portion (1011), and a first locking hole (1014) corresponding to the first protrusion (1013) is formed in the side surface of the female header front housing (101).

7. The large-current compact anti-drop and anti-misinsertion connector for preventing ignition, water and dust according to claim 6, characterized in that, The male head structure (2) includes: Male header front housing (201), a middle guiding member (203) is fixedly connected to the central position inside the male header front housing (201), a middle guiding hole (104) corresponding to the middle guiding member (203) is formed at the front end of the triangular plug (102), a side guiding member (204) is fixedly connected to the inner side wall of the male header front housing (201), a side guiding groove (105) corresponding to the side guiding member (204) is formed in the side surface of the triangular plug (102), and the male header member (205) is arranged inside the male header front housing (201).

8. The large-current compact anti-drop and anti-misplug connector for preventing ignition, water and dust according to claim 7, characterized in that The male head structure (2) further includes: Male header rear housing (207), a second plug portion is fixedly connected to the front end of the male header rear housing (207), a second necking support portion (209) is fixedly connected to the front end of the second plug portion, an annular portion corresponding to the second necking support portion (209) is arranged on the side surface of the male header member (205), and the front end of the second plug portion is inserted into and fixedly connected to the rear end of the male header front housing (201).

9. The large-current compact anti-drop and anti-misinsertion connector with anti-sparking, waterproof and dustproof features according to claim 8, characterized in that, The male head structure (2) further includes: A main bayonet member (202) is fixedly connected to the outside of the male header front housing (201), and a main buckle member (1015) corresponding to the main bayonet member (202) is fixedly connected to the side surface of the female header front housing (101).

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