WO2014202008A1 - 一种防水连接器 - Google Patents

一种防水连接器 Download PDF

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Publication number
WO2014202008A1
WO2014202008A1 PCT/CN2014/080269 CN2014080269W WO2014202008A1 WO 2014202008 A1 WO2014202008 A1 WO 2014202008A1 CN 2014080269 W CN2014080269 W CN 2014080269W WO 2014202008 A1 WO2014202008 A1 WO 2014202008A1
Authority
WO
WIPO (PCT)
Prior art keywords
male
female
tightening head
connector
sealing layer
Prior art date
Application number
PCT/CN2014/080269
Other languages
English (en)
French (fr)
Inventor
陈凯
黄建明
Original Assignee
杭州华普永明光电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州华普永明光电股份有限公司 filed Critical 杭州华普永明光电股份有限公司
Priority to JP2016600039U priority Critical patent/JP3207493U/ja
Priority to BR212015031156U priority patent/BR212015031156U2/pt
Publication of WO2014202008A1 publication Critical patent/WO2014202008A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet

Definitions

  • the utility model relates to the field of electrical connection, in particular to a waterproof connector.
  • Connectors are widely used in a variety of electrical circuits and function as a connection or disconnection circuit to simplify the installation of such sockets or connectors onto electrical devices.
  • Existing electronic devices such as street lamps and LED display screens use more and more connectors. Because LED street lamps are used outdoors, their connectors have higher waterproof requirements, while existing connectors have poor waterproof performance. When water seeps into the socket or plug, a signal is interrupted due to a short circuit.
  • the screwing head of the existing waterproof connector is made of nylon material, and the sealing performance of the male connector and the female connector is poor, and the degree of protection is low.
  • the sealing sleeve of the existing waterproof connector is formed by one-time injection molding of PVC material. Due to the poor weather resistance of the PVC material, the long-term use will affect the protective performance of the waterproof connector; and the adhesion between the PVC material and the rubber protective sleeve of the wire is poor. , it is easy to create gaps, which affects the waterproof performance of the waterproof connector.
  • the utility model provides a waterproof connector, which comprises at least one male connector, the male connector comprises a male terminal, a male terminal block, a male end tightening head and a first outer casing, wherein the male terminal is inserted in the a male terminal is inserted into one end of the male terminal block and connected to the wire, and the male end screwing sleeve is disposed on the male terminal block and has a moving stroke along the male terminal block, the first The outer casing is wrapped around the bottom of the male end to the wire insulation portion;
  • the male end screwing head is provided with a thread, and the male end screwing head is made of aluminum.
  • the first outer casing comprises a PU sealing layer and a nylon sealing layer
  • the nylon sealing layer is sleeved on the surface of the PU sealing layer
  • the PU sealing layer and the nylon sealing layer are respectively injection molded. Formed by molding.
  • the male terminal block is provided with a head limiting portion, an intermediate movable portion and a tail injection portion, and the male screwing head has a movable stroke along the intermediate movable portion.
  • the male end tightening head sleeve is disposed at the intermediate movable portion and is prevented from being disengaged from the male terminal block by the head limiting portion, and the tail injection portion is designed with a thread.
  • the male connector is provided with a partition and a foolproof structure.
  • the utility model also provides a female connector with a waterproof function
  • the female connector comprises a female terminal, a female terminal block, a female end tightening head and a second outer casing, wherein the female terminal is inserted on the female terminal block One end of the female terminal is inserted into the female terminal block and connected to the wire, the female end screwing sleeve is sleeved and fixed on the female terminal block, and the second outer casing is covered on the The female end is screwed to the bottom of the head to the wire insulation portion;
  • a thread is arranged on the inner side of the female screwing head, and the female screwing head is made of aluminum.
  • the female terminal block is provided with a head portion, an intermediate blocking portion and a tail injection portion, the female end screwing head is fixed to the head portion, and the tail injection portion is designed with a thread, the female end A sealing ring is arranged between the tightening head and the intermediate blocking portion.
  • the first outer casing and the second outer casing simultaneously comprise a PU sealing layer and a nylon sealing layer
  • the nylon sealing layer is sleeved on the surface of the PU sealing layer
  • the PU sealing layer and the nylon sealing layer respectively It is formed by one injection molding.
  • it is also provided with a space and a recess.
  • the utility model also provides a waterproof connector, comprising a male connector and a female connector, one of which is an input end and the other is an output terminal.
  • the male connector includes a male terminal, a male terminal block, a male terminal tightening head, and a first outer casing.
  • the male terminal is inserted into the male terminal block, and the male terminal is inserted into one end of the male terminal block and connected to the wire.
  • the male end tightening head sleeve is disposed on the male terminal block and has a moving stroke along the male terminal block, and the first outer casing is wrapped around the bottom of the male end screwing head to the wire insulation layer portion;
  • the female connector includes a female terminal, a female terminal block, a female terminal tightening head and a second outer casing, wherein the female terminal is inserted into the female terminal block, and one end of the female terminal is inserted into the female terminal block and connected to the wire
  • the female end tightening head sleeve is sleeved and fixed on the female terminal block, and the second outer casing is wrapped around the bottom of the female end screwing head to the wire insulation layer portion;
  • An outer side thread is disposed on an outer side of the male end tightening head, and an inner side thread that is screwed to the outer side thread is disposed on an inner side of the female end tightening head.
  • the second outer casing includes a PU sealing layer and a nylon sealing layer, and the nylon sealing layer is sleeved on the surface of the PU sealing layer; the PU sealing layer and the nylon sealing layer are respectively injection molded. Formed by molding.
  • the male end screwing head and the female end screwing head are made of aluminum.
  • the male terminal block is provided with a head limiting portion, an intermediate movable portion and a tail injection portion
  • the male end tightening head has a movable stroke along the intermediate movable portion, and the male end is screwed to the hood
  • the tail injection portion is designed with a thread
  • the female terminal block is provided with a head portion, an intermediate blocking portion and a tail portion
  • the female end screwing head is fixed to the head portion
  • the tail injection portion is designed with a thread.
  • a sealing ring is disposed between the female end screwing head and the intermediate blocking portion.
  • the plurality of female connectors comprises a plurality of female connectors, which are integrally injection molded.
  • the electrical connections of the plurality of female connectors may be full series, or fully parallel, or a combination of series and parallel.
  • a waterproof connector set includes at least one or more sets of waterproof connectors, each set of waterproof connectors including at least a male connector and a female connector, one of which is an input end and the other is an output end ,
  • the male connector includes a male terminal, a male terminal block, a male terminal tightening head, and a first outer casing.
  • the male terminal is inserted into the male terminal block, and the male terminal is inserted into one end of the male terminal block and connected to the wire.
  • the male end tightening head sleeve is disposed on the male terminal block and has a moving stroke along the male terminal block, and the first outer casing is wrapped around the bottom of the male end screwing head to the wire insulation layer portion;
  • the female connector includes a female terminal, a female terminal block, a female terminal tightening head and a second outer casing, wherein the female terminal is inserted into the female terminal block, and one end of the female terminal is inserted into the female terminal block and connected to the wire
  • the female end tightening head sleeve is sleeved and fixed on the female terminal block, and the second outer casing is wrapped around the bottom of the female end screwing head to the wire insulation layer portion;
  • the female end screwing head of the female connector and the male screwing head of the male connector are screwed together, and the waterproof connector groups are connected in parallel or in series or in series and parallel with each other through respective male connectors or female connectors.
  • the outer end of the male end tightening head is provided with an outer thread
  • the inner end of the female end tightening head is provided with an inner thread which is screwed with the outer thread.
  • the first outer casing/second outer casing includes a PU sealing layer and a nylon sealing layer, and the nylon sealing layer is sleeved on the surface of the PU sealing layer, and the PU sealing layer and the nylon sealing layer are respectively Formed by one injection molding; or the first outer casing/second outer casing is a plastic sealing layer formed by one injection molding.
  • a waterproof connector includes at least one male connector, the male connector includes a male terminal, a male terminal block, a male end tightening head, and a first outer casing, and the male terminal is inserted into the male terminal block.
  • One end of the male terminal is inserted into the male terminal block and connected to the wire.
  • the male end screwing head sleeve is disposed on the male terminal block and has a moving stroke along the male terminal block, and the first outer casing is covered in the public
  • the end of the head is screwed to the wire insulation layer portion, and the male end screwing head is provided with a connection structure that is screwed with the female connector, and the first outer casing of the male connector is integrally injection molded from plastic.
  • the male screwing head is integrally molded by plastic.
  • the female connector of the waterproof function includes a female terminal, a female terminal block, a female end tightening head and a second outer casing, the female terminal is inserted on the female terminal block, and the female terminal is inserted One end of the female terminal block is connected to the wire, the female end is tightened and sleeved on the female terminal block, and the second outer casing is wrapped around the bottom of the female end screw to the wire insulation layer.
  • the female end screwing head is provided with a connecting structure that is screwed with the male connector, and the second outer casing of the female connector is integrally injection molded from plastic.
  • the female screwing head is integrally injection molded of plastic.
  • the first outer casing is a plastic sealing layer formed by one injection molding, and the diameter A1 is set to be 1-5 mm smaller than the diameter A, and the first outer casing is injection-molded by the PU sealing layer and the nylon sealing layer respectively.
  • the second outer casing is a plastic sealing layer formed by one injection molding, and the diameter B1 is set to be 1-5 mm smaller than the diameter B, and B is the second outer casing diameter of the second outer casing which is separately injection molded by the PU sealing layer and the nylon sealing layer. .
  • the sealing sleeve of the male connector and the female connector provided by the utility model can be double-injected, and the nylon material used in the nylon sealing sleeve and the electric wire sleeve using the rubber material have better adhesion, so the male connection
  • the waterproof connection between the head and the wire is better, and the weather resistance of the PU material is better. Therefore, the waterproof connector has a high degree of protection; the tightening head is made of an aluminum profile, and the male screwing head and the female screwing head are tightened.
  • the sealing ring disposed at the connector of the jack is squeezed, and the sealing effect is better; at the same time, the male connector is increased in creepage distance and clearance by the setting of the partition; Mistaken.
  • the present invention provides a second solution in which the first outer casing of the male connector and the second outer casing of the female connector can be molded in one time, which is not only low in cost but also very convenient in processing.
  • plastic molding is used in one time, the waterproof connection between the male connector and the wire is better, and the waterproof connector has higher protection level; the screwing head is simultaneously molded by plastic, and the male end tightening head and the female end are tightened. When the head is tightened, it will squeeze the seal ring provided at the connector of the jack, and the sealing effect is better.
  • the male end tightening head has a movable travel along the intermediate movable portion, the male end tightening head sleeve is disposed at the intermediate movable portion and is prevented from disengaging from the male terminal block by the head blocking portion.
  • the length of the male end tightening head is smaller than the length of the intermediate movable part of the male terminal block, so that the male end tightening head has sufficient movable space for the tightening operation, which also improves the sealing effect.
  • the present invention further provides a waterproof connector set
  • the waterproof connector set includes a plurality of connector groups and a male connector or a female connector connected to the connector groups, the connector groups including each other A male connector and a female connector are connected, and the waterproof connectors are connected to each other in parallel or in series or in series and parallel through respective male connectors or female connectors to realize electrical connection, thereby greatly improving the application place of the entire waterproof connector.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • FIG. 2A and FIG. 2B are respectively exploded perspective views of the male connector according to the first embodiment and the second embodiment of the present invention
  • FIG. 3A and FIG. 3B are the female connector provided by the first embodiment and the second embodiment of the present invention
  • FIG. 4 is a schematic structural view of a two-way waterproof connector provided by the present invention
  • Figure 5 is a schematic structural view of a three-part waterproof connector provided by the present invention.
  • FIG. 6 is a schematic structural view of a four-way waterproof connector provided by the present invention.
  • Figure 7 is a cross-sectional view of a male connector provided by an embodiment of the present invention
  • Figure 8 is a perspective view of a male connector provided by an embodiment of the present invention
  • FIG. 9 is a perspective view of a female connection diagram provided by an embodiment of the present invention.
  • the utility model provides a waterproof connector. As shown in FIG. 1 , the utility model comprises a male connector 21 and a female connector 22 .
  • the male connector 21 is an input terminal and is connected to the female connector 22 of the power source.
  • the male connector 21 is connected. It is connected to the electrical appliance to supply power to the appliance.
  • the male connector 21 includes a male terminal 1, a male terminal block 2, a male terminal tightening head 3, and a first housing.
  • the male terminal is pin-shaped, and the male terminal 1 is inserted into the male terminal block 2.
  • the male terminal 1 is inserted into one end of the male terminal block 2 and connected to the wire.
  • the male end tightening head 3 is sleeved on the male terminal block 2 and movable along the male terminal block 2.
  • the first outer casing is wrapped around the bottom of the male end screwing head 3 to The wire insulation portion; the male connector 21 increases the creepage distance and the clearance by the arrangement of the partition 31.
  • the design of the foolproof structure 32 is used to prevent the positive and negative electrodes from being misconnected.
  • the partition 31 may be a wall structure, and the foolproof structure 32 may be arched.
  • the female connector 22 includes a female terminal 11, a female terminal block 12, a female end tightening head 13, and a second outer casing (including a PU sealing layer 7 and a nylon sealing layer 8).
  • the female terminal is pinhole shaped.
  • the female terminal 11 is inserted into the female terminal block 12, the female terminal 11 is inserted into one end of the female terminal block 12 and connected to the wire, and the female screwing head 13 is sleeved and fixed on the female terminal block 12, and the second outer casing is Covering the bottom of the female end tightening head 13 to the wire insulation layer portion;
  • the outer end of the male end tightening head 3 is provided with an outer thread
  • the inner end of the female end tightening head 13 is provided with an inner thread which is screwed to the outer thread.
  • the female connector 22 is provided with a space 42 matching the male connector 21 partition 31, and a recess 43 is provided at a position corresponding to the male connector foolproof structure 32, and the foolproof structure is passed through the male connector. 32.
  • the groove 43 corresponding to the female connector is used in combination to define a position to prevent the positive and negative electrodes from being misconnected.
  • the use of the partition 31 and the air gap 42 increases the creepage distance and the clearance to improve the safety performance.
  • the first outer casing and the second outer casing are simultaneously composed of a PU sealing layer 5 ( 7 ) and a nylon sealing layer 6 ( 8 ), and a nylon sealing layer 6 ( 8 ) is sleeved on the PU sealing layer 5 ( 7 )
  • the surface, the PU sealing layer 5 (7) and the nylon sealing layer 6 (8) are respectively formed by one injection molding.
  • the PU sealing layer 5 and the nylon sealing layer 6 were respectively subjected to one injection molding, and the manufacturing process was complicated, and water flowed out from the gap between the PU sealing layer 5 and the nylon sealing layer 6, and the sealing effect was not It is clear.
  • the applicant has repeatedly developed that the male end tightening head 32 and the female end tightening head 13 can also be formed by a plastic sealing layer 61 (see FIG. 2B) or other plastic material after one injection molding.
  • the PU outer sealing layer 5 and the nylon sealing layer 6 were injection molded twice, and the first outer casing was made to have a diameter A.
  • a plastic sealing layer 61 - In the case of the secondary injection molding, when the diameter A1 is smaller than A to 1-5 mm, the sealing property of the plastic sealing layer 61 is good, and the ball pressure test can be fully achieved. Also, the diameter A1 is as small as 2-3 mm from A, and the sealing property is better.
  • the second outer casing is a plastic sealing layer 81 (Fig. 3B) formed by one injection molding, the diameter B1 of which is set to be 1-5 mm smaller than the diameter B, and B is the second outer casing by the PU sealing layer 7 and the nylon sealing layer. 8 The diameter of the second outer casing that is separately injection molded.
  • this one-shot molding is easier to manufacture and simpler in production process than secondary injection molding. That is, the first outer casing 75 and the second outer casing 95 may also be a nylon sealing layer formed by one injection molding.
  • the male end tightening head 32 and the female end tightening head 13 can also be formed by a single injection molding of a plastic sealing layer or other plastic material. This one-shot injection molding is simpler than the secondary injection molding process.
  • the male terminal and the female terminal can be mated together.
  • the male end screwing head and the female end screwing head used in this embodiment are respectively made of aluminum material or nylon.
  • the utility model can also adopt other materials with tight bonding properties as raw materials for the male screwing head and the female end screwing head.
  • the male terminal and the female terminal can be mated together.
  • the male end tightening head 32 and the female end tightening head 13 used in the utility model are respectively made of aluminum material, and the utility model can also adopt other materials with tight bonding properties as the male end tightening head 3 and the female end tightening head 13 .
  • Raw materials are respectively made of aluminum material, and the utility model can also adopt other materials with tight bonding properties as the male end tightening head 3 and the female end tightening head 13 .
  • the male terminal block 2 includes a head blocking portion, an intermediate movable portion and a tail injection portion, and the male screwing head 3 has a movable stroke along the intermediate movable portion, and the male screwing head 3 is sleeved on the intermediate movable portion and The head blocking portion is prevented from coming off the male terminal block 2.
  • the length of the male end tightening head 3 is smaller than the length of the intermediate movable portion of the male terminal block 2, so that the male end tightening head 3 has sufficient movable space for the tightening operation.
  • the female terminal block 12 includes a head portion, an intermediate blocking portion and a rear end injection portion.
  • the female end tightening head 13 is sleeved on the head portion, and the female end tightening head 13 cannot rotate along the axis of the female terminal block 12, the male end The tightening head 3 is inserted into the socket to tighten the head 13 and then the male end tightening head 3 is rotated to screw the male end tightening head 3 into the female end tightening head 13 and push the female end tightening head 13, the female end tightening head 13 and the intermediate barrier
  • a sealing ring 8 is arranged in the gap between the parts, and the female end tightening head male end tightening head 3 pushes the sealing ring to have better sealing performance.
  • the waterproof connector provided by the utility model can also be provided with a plurality of female connectors 22, such that one waterproof connector can be used for power supply of a plurality of electrical appliances, and the plurality of female connectors 22 are integrally injection molded. Easy to process. As shown in Figures 3, 4, and 5, there are two points, one minute three, one minute four waterproof connectors.
  • the plurality of female connectors of the integrally injection molded can be electrically connected in series, or in full parallel, or in series and parallel.
  • a waterproof connector set includes at least one or more sets of waterproof connectors, each set
  • the waterproof connector includes at least a male connector and a female connector, one of which is an input terminal and the other is an output terminal
  • the male connector includes a male terminal, a male terminal block, a male end tightening head, and a first outer casing
  • the male terminal is inserted into the male terminal block, and one end of the male terminal is inserted into the male terminal block and connected to the wire.
  • the male end screwing sleeve is disposed on the male terminal block and has a section along the male terminal block. Moving the stroke, the first outer casing is wrapped around the bottom of the male end to the wire insulation layer;
  • the female connector includes a female terminal, a female terminal block, a female terminal tightening head and a second outer casing, wherein the female terminal is inserted into the female terminal block, and one end of the female terminal is inserted into the female terminal block and connected to the wire
  • the female end tightening head sleeve is sleeved and fixed on the female terminal block, and the second outer casing is wrapped around the bottom of the female end screwing head to the wire insulation layer portion;
  • the female end screwing head of the female connector and the male screwing head of the male connector are screwed together, and the waterproof connector groups are connected in parallel or in series or in series and parallel with each other through respective male connectors or female connectors.
  • the female end screwing head of the female connector and the male screwing head of the male connector are screwed together, for example, the outer end of the male screwing head is provided with an outer thread, and the inner side of the female screwing head is provided with the outer thread. Inner thread.
  • the first outer casing/second outer casing includes a PU sealing layer and a nylon sealing layer.
  • the nylon sealing layer is sleeved on the surface of the PU sealing layer, and the PU sealing layer and the nylon sealing layer are respectively injection molded. Formed; or the first outer casing/second outer casing is a nylon sealing layer formed by one injection molding.
  • the first outer casing is a plastic sealing layer formed by one injection molding, and the diameter A1 is set to be 1-5 mm smaller than the diameter A, and the first outer casing is injection-molded by the PU sealing layer and the nylon sealing layer respectively.
  • the first outer casing diameter; and/or the second outer casing is a plastic sealing layer formed by one injection molding, the diameter B1 is set to be 1-5 mm smaller than the diameter B, and the B is the second outer casing by the PU sealing layer and the nylon sealing layer
  • the second outer casing diameter is separately injection molded.
  • the male end tightening head 32 and the female end tightening head 13 may also be formed of a nylon sealing layer or other plastic material by one injection molding.
  • the manufacturing process of the male connector 21 provided in this embodiment is as follows:
  • the male terminal 1 is inserted into the male terminal block 2, and the tail portion is located outside the male terminal block 2;
  • the male end tightening head 3 is sleeved outside the male terminal block 2, and the male terminal at the tail end of the male terminal block 2 is connected with the wire connector;
  • the PU sealing sleeve 5 is injection molded at the joint of the male terminal 1 and the wire connector, and covers a part of the male terminal 2 tail parts and part of the wire insulation;
  • the nylon gland 6 is injection molded outside the PU gland 5, and its tail is slightly longer than the PU gland and covers part of the wire insulation.
  • the manufacturing process is as follows: the male terminal 1 is inserted into the male terminal block 2, and the tail is located outside the male terminal block 2; the male end is tightened 3 sets are located outside the male terminal block 2 The male terminal at the end of the male terminal block 2 is connected to the wire connector; the nylon sealing sleeve 61 is injection molded at the joint of the male terminal 1 and the wire connector, and covers a part of the tail portion of the male terminal block 2 and all the wire insulation layers.
  • the manufacturing process of the female connector 22 provided in this embodiment is as follows:
  • the head of the female terminal 11 is inserted into the female terminal block 12, and the tail portion is located outside the female terminal block 12;
  • the female end tightening head 13 is sleeved on the female terminal block 12;
  • the head of the female terminal 11 is connected to the wire connector
  • the PU sealing sleeve 7 is injection molded at the joint of the female terminal 11 and the electric wire, and covers the bottom of the female end tightening head 13, the tail portion of the female terminal block 12 and a part of the wire insulation layer;
  • the nylon gland 8 is injection molded outside the PU gland 7, and its tail is slightly longer than the PU gland 7, and covers part of the wire insulation layer.
  • the manufacturing process is as follows: the head of the female terminal 11 is inserted into the female terminal block 12, and the tail portion is located outside the female terminal block 12; The head 13 is sleeved on the female terminal block 12; the head of the female terminal 11 is connected to the wire connector; the plastic sealing sleeve 81 is molded at the connection of the female terminal 11 and the wire, and covers the bottom of the female end screwing head 13 and the female terminal block 12 The tail part and all the wire insulation.
  • the screwing head of the waterproof connector is made of aluminum, and the pin connector and the jack connector are tightly connected and the protection level is high.
  • the sealing sleeve of the waterproof connector is double-injected with PU material and nylon material. Because the outdoor protection performance of nylon material is better, and the weather resistance of PU material is better, the waterproof connector has high protection level; PVC material of waterproof connector The sealing sleeve is firmly bonded to the rubber sheath of the wire to prevent moisture from penetrating from the gap between the tail of the connector and the wire.

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Abstract

一种防水连接器，包括公连接头（21）与母连接头（22），公连接头（21）包括公端子（1）、公端子座（2）、公端拧紧头（3）、第一外壳，公端子（1）插设于公端子座上（2），公端拧紧头（3）套设于公端子座（2）上，密封组件包覆在公端拧紧头（3）底部至导线绝缘层部分；母连接头（22）包括母端子（11）、母端子座（12）、母端拧紧头（13）、第二外壳，母端子（11）插设于母端子座（12）上，母端拧紧头（13）套设并固定于母端子座（12）上，第二密封组件包覆在母端拧紧头（13）底部至导线绝缘层部分；公端拧紧头（3）外侧与母端拧紧头（13）内侧分别设有相拧合螺纹结构；密封组件由尼龙材料和PU材料二次注塑成型或直接由塑料一次注塑成型，尼龙防护层材料防护性能较好，PU防护层耐候性较好，且其拧紧头采用铝型材或塑料，公连接头（21）和母连接头（22）连接紧密。

Description

一种防水连接器 技术领域
本实用新型涉及电气连接领域， 特别涉及一种防水连接器。
背景技术
连接器广泛应用于各种电气线路中， 起着连接或断开电路的作用， 能简化这类插座或接 头安装到电器装置上的过程。 现有电子设备如路灯、 LED显示屏上使用的连接器越来越多， LED路灯由于要在户外使用， 因此其连接器对防水要求较高，而现有连接器的防水性能较差， 当有水渗入到插座或插头内时， 就会因短路而产生信号中断的情形。
现有防水连接器的拧紧头采用尼龙材料制成，公连接头和母连接头连接时密封性能较差， 防护等级较低。
现有防水连接器的密封套采用 PVC材料一次注塑成型， 由于 PVC材料耐候性较差， 长 期使用会影响防水连接器的防护性能； 且 PVC材料与电线的橡胶防护套之间粘合性较差， 容 易产生缝隙， 从而影响防水连接器的防水性能。
实用新型内容
本实用新型提供了一种防水连接器， 其包括至少一个公连接头， 所述公连接头包括公端 子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所述公端子座上， 所述公端子 插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公端子座上并沿所述公端子座 具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线绝缘层部分；
所述公端拧紧头外侧设有螺纹， 所述公端拧紧头为铝制材质。
较佳地， 所述第一外壳同时包括 PU密封层与尼龙密封层， 所述尼龙密封层套设于所述 PU密封层表面， 所述 PU密封层与所述尼龙密封层分别为经一次注塑成型形成的。
较佳地， 所述公端子座设置有头部限位部位、 中间活动部位以及尾部注塑部位， 所述公 端拧紧头在沿所述中间活动部位具有一段可移动行程。 所述公端拧紧头套设于所述中间活动 部位并由所述头部限位部位阻止其脱离所述公端子座， 所述尾部注塑部位设计有螺纹。
较佳地， 所述公连接头设置有隔断与防呆结构。
本实用新型还提供了一种防水功能的母连接头， 所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所述母端子座上， 所述母端子插进母端子座的 一端与导线连接， 所述母端拧紧头套设并固定于所述母端子座上， 所述第二外壳包覆在所述 母端拧紧头底部至导线绝缘层部分；
所述母拧紧头内侧设有螺纹， 所述母拧紧头为铝制材质。
较佳地， 所述母端子座设置有头部部位、 中间阻隔部位以及尾部注塑部位， 所述母端拧 紧头固定于所述头部部位， 所述尾部注塑部位设计有螺纹， 所述母端拧紧头与所述中间阻隔 部位之间设有一密封圈。
较佳地， 所述第一外壳以及第二外壳同时包括 PU密封层与尼龙密封层， 所述尼龙密封 层套设于所述 PU密封层表面，所述 PU密封层与所述尼龙密封层分别为经一次注塑成型形成 的。
较佳地， 其还设置有隔空与凹槽。
本实用新型还提供了一种防水连接器， 包括公连接头与母连接头， 其中一个为输入端， 另一个为输出端，
所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所 述公端子座上， 所述公端子插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公 端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线 绝缘层部分；
所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所 述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所述母端拧紧头套设并固定于 所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导线绝缘层部分；
所述公端拧紧头外侧设有外侧螺纹， 所述母端拧紧头内侧设有与所述外侧螺纹相拧合的 内侧螺纹。
较佳地， 所述第二外壳同时包括 PU密封层与尼龙密封层， 所述尼龙密封层套设于所述 PU密封层表面； 所述 PU密封层与所述尼龙密封层分别为经一次注塑成型形成的。
较佳地， 所述公端拧紧头与所述母端拧紧头为铝制材质。
较佳地， 所述公端子座设置有头部限位部位、 中间活动部位以及尾部注塑部位， 所述公 端拧紧头在沿所述中间活动部位具有一段可移动行程， 所述公端拧紧头套设于所述中间活动 部位并由所述头部限位部位阻止其脱离所述公端子座， 所述尾部注塑部位设计有螺纹； 所述 母端子座设置有头部部位、 中间阻隔部位以及尾部注塑部位， 所述母端拧紧头固定于所述头 部部位， 所述尾部注塑部位设计有螺纹。
较佳地， 所述母端拧紧头与所述中间阻隔部位之间设有一密封圈。
较佳地， 其包括多个母连接头， 所述多个母连接头经一体注塑成型。 所述一体注塑成型 的多个母连接头的电气方式可为全串联， 或者全并联， 或者串并联结合。
一种防水连接器组， 防水连接器组至少包括一组或多组防水连接器， 每一组防水连接器 包括至少包括公连接头与母连接头， 其中一个为输入端， 另一个为输出端，
所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所 述公端子座上， 所述公端子插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公 端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线 绝缘层部分；
所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所 述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所述母端拧紧头套设并固定于 所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导线绝缘层部分；
母连接头的母端拧紧头和公连接头的公端拧紧头配合拧紧连接， 并且， 所述防水连接器 组之间通过各自的公连接头或母连接头相互并联或串联或串并联。
需要说明的是， 所述公端拧紧头外侧设有外侧螺纹， 所述母端拧紧头内侧设有与所述外 侧螺纹相拧合的内侧螺纹。还有，所述第一外壳 /第二外壳同时包括 PU密封层与尼龙密封层， 所述尼龙密封层套设于所述 PU密封层表面，所述 PU密封层与所述尼龙密封层分别为经一次 注塑成型形成的； 或所述第一外壳 /第二外壳为经过一次注塑成型形成的塑料密封层。
一种防水连接器， 其包括至少一个公连接头， 所述公连接头包括公端子、 公端子座、 公 端拧紧头以及第一外壳， 所述公端子插设于所述公端子座上， 所述公端子插进公端子座的一 端与导线连接，所述公端拧紧头套设于所述公端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线绝缘层部分， 并且， 所述公端拧紧头上设置与母 连接头配合拧紧的连接结构， 并且， 所述公连接头的第一外壳由塑料一体注塑成型。
所述公端拧紧头为塑料一体注塑成型。
一种防水功能的母连接头， 所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二 外壳， 所述母端子插设于所述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所 述母端拧紧头套设并固定于所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导 线绝缘层部， 所述母端拧紧头上设置与公连接头配合拧紧的连接结构， 并且， 所述母连接头 的第二外壳由塑料一体注塑成型。
所述母拧紧头为塑料一体注塑成型。
所述第一外壳为经过一次注塑成型形成的塑料密封层， 其直径 A1的设置为比直径 A小 1-5 mm, A为所述第一外壳由 PU密封层与尼龙密封层分别注塑成型的第一外壳直径； 和 /或 第二外壳为经过一次注塑成型形成的塑料密封层， 其直径 B1的设置为比直径 B小 1-5 mm, B为第二外壳由 PU密封层与尼龙密封层分别注塑成型的第二外壳直径。
首先， 本实用新型提供的公连接头和母连接头的密封套可以采用二次注塑成型， 并且由 于尼龙密封套使用的尼龙材料和使用橡胶材质的电线套结合粘附性较好， 因此公连接头与电 线连接处的防水性较好， 且 PU材料耐候性较好， 因此， 防水连接器的防护等级高； 拧紧头 采用铝型材加工而成， 并且公端拧紧头和母端拧紧头在拧紧的时候会挤压设置在插孔连接头 处的密封圈， 密封效果更好； 同时， 所述公连接头通过隔断的设置， 增加爬电距离和电气间 隙； 通过防呆设计以防止正负极误接。
接着， 本实用新型提供第二个方案是公连接头的第一外壳和母连接头的第二外壳可以采 用塑料一次成型， 不仅成本低， 而且加工也非常方便。 特别是经过实验表明， 采用塑料一次 成型， 公连接头与电线连接处的防水性更好， 防水连接器的防护等级更高； 拧紧头同时采用 塑料一次成型， 并且公端拧紧头和母端拧紧头在拧紧的时候会挤压设置在插孔连接头处的密 封圈， 密封效果更好。
再次， 公端拧紧头在沿所述中间活动部位具有一段可移动行程， 公端拧紧头套设于所述 中间活动部位并由所述头部阻隔部位阻止其脱离公端子座。 公端拧紧头的长度小于公端子座 中间活动部位的长度， 这样公端拧紧头就有足够的活动空间进行拧紧操作， 同样也提升了密 封的效果。
然后， 本实用新型还提供一种防水连接器组， 防水连接器组包括若干连接头组以及一与 所述各连接头组连接的公连接头或母连接头， 所述各连接头组包括相互连接的一公连接头与 一母连接头， 防水连接器组之间通过各自的公连接头或母连接头相互并联或串联或串并联， 实现电气连接， 大大提升了整个防水连接器的应用场所。
当然， 实施本实用新型的任一产品并不一定需要同时达到以上所述的所有优点。
附图说明
图 1为本实用新型的一实施例的结构示意图；
图 2A、 图 2B分别为本实用新型第一实施例、 第二实施例提供的公连接头分解示意图； 图 3A、 图 3B为本实用新型第一实施例、 第二实施例提供的母连接头分解示意图； 图 4为本实用新型提供的一分二防水连接器结构示意图；
图 5为本实用新型提供的一分三防水连接器结构示意图；
图 6为本实用新型提供的一分四防水连接器结构示意图；
图 7为本实用新型实施例提供的公连接头截面图； 图 8 为本实用新型实施例提供的公连接头立体图；
图 9 为本实用新型实施例提供的母连接图立体图。
具体实施方式
本实用新型提供了一种防水连接器， 如图 1所示， 包括公连接头 21与母连接头 22， 公 连接头 21为输入端， 其与电源的母连接头 22相连， 公连接头 21与用电器相连， 从而为用电 器供电。
如图 2A所示， 所述公连接头 21包括公端子 1、 公端子座 2、 公端拧紧头 3以及第一外 壳， 公端子为针状， 公端子 1插设于公端子座 2上， 公端子 1插进公端子座 2的一端与导线 连接， 公端拧紧头 3套设于公端子座 2上并可沿公端子座 2移动， 第一外壳包覆在公端拧紧 头 3底部至导线绝缘层部分； 公连接头 21通过隔断 31的设置， 增加爬电距离和电气间隙。 通过防呆结构 32的设计以防止正负极误接。 具体的， 隔断 31可为壁状结构， 防呆结构 32可 为拱形。
如图 3A所示， 所述母连接头 22包括母端子 11、 母端子座 12、 母端拧紧头 13以及第二 外壳 （包括 PU密封层 7与尼龙密封层 8)， 母端子为针孔状， 母端子 11插设于母端子座 12 上， 母端子 11插进母端子座 12的一端与导线连接， 母端拧紧头 13套设并固定于母端子座 12上， 所述第二外壳包覆在所述母端拧紧头 13底部至导线绝缘层部分；
公端拧紧头 3外侧设有外侧螺纹，母端拧紧头 13内侧设有与所述外侧螺纹相拧合的内侧 螺纹。
如图 9所示， 母连接头 22设置有与公连接头 21隔断 31相匹配的隔空 42， 与公连接头 防呆结构 32对应位置设置有凹槽 43，通过公连接头的防呆结构 32和母连接头对应的凹槽 43 的配合使用， 限定位置， 以防止正负极误接， 通过隔断 31和隔空 42的配合使用， 增加爬电 距离和电气间隙， 提高安全性能。
在本例中， 所述第一外壳以及第二外壳同时采用 PU密封层 5 ( 7) 与尼龙密封层 6 ( 8 ) 组成， 尼龙密封层 6 ( 8 ) 套设于 PU密封层 5 ( 7) 表面， PU密封层 5 ( 7) 与尼龙密封层 6 ( 8 ) 分别经一次注塑成型形成。
在申请人制作过程中，发现采用 PU密封层 5与尼龙密封层 6分别进行一次注塑成型,制作 工艺比较复杂，存在水从 PU密封层 5与尼龙密封层 6之间的缝隙流出，密封效果不是很明显。 为此,申请人经过多次研制发现,公端拧紧头 32与母端拧紧头 13也可以为塑料密封层 61 (请 参阅图 2B )或其它塑料材料， 经过一次注塑成型形成。 并且， 经过多次试验发现， 采用 PU 密封层 5与尼龙密封层 6两次注塑成型， 制成的第一外壳的直径为 A。采用塑料密封层 61— 次注塑成型时， 其直径 A1比 A小至 1-5 mm的设置时， 塑料密封层 61的密封性很好， 而且 也能完全达到球压测试的要求。 并且， 直径 A1比 A小至 2-3mm， 密封性更好。
同样， 第二外壳为经过一次注塑成型形成的塑料密封层 81 (图 3B)， 其直径 B1 的设置 为比直径 B小 1-5 mm, B为第二外壳由 PU密封层 7与尼龙密封层 8分别注塑成型的第二外 壳直径。
综上所述， 这种一次注塑成型比起二次注塑成型来说，制作方便且生产工艺更简单。 即第 一外壳 75以及第二外壳 95也可以为尼龙密封层， 经过一次注塑成型形成。公端拧紧头 32与 母端拧紧头 13也可以为塑料密封层或其它塑料材料， 经过一次注塑成型形成。 这种一次注 塑成型比起二次注塑成型工艺更简单。
所述公端子和所述母端子可以相互配合接插在一起。 本实施例采用的公端拧紧头与母端 拧紧头分别为铝制材质或尼龙， 本实用新型也可以采用其它具有紧密结合性能的材质作为公 端拧紧头与母端拧紧头的原材料。
所述公端子和所述母端子可以相互配合接插在一起。
同时， 本实用新型采用的公端拧紧头 32与母端拧紧头 13分别为铝制材质， 本实用新型 也可以采用其它具有紧密结合性能的材质作为公端拧紧头 3与母端拧紧头 13的原材料。
公端子座 2包括头部阻隔部位、 中间活动部位以及尾部注塑部位， 公端拧紧头 3在沿所 述中间活动部位具有一段可移动行程， 公端拧紧头 3套设于所述中间活动部位并由所述头部 阻隔部位阻止其脱离公端子座 2。 公端拧紧头 3的长度小于公端子座 2中间活动部位的长度， 这样公端拧紧头 3就有足够的活动空间进行拧紧操作。
母端子座 12包括头部部位、 中间阻隔部位以及后端注塑部位， 母端拧紧头 13套设于所 述头部部位， 母端拧紧头 13沿着母端子座 12的轴不能转动， 公端拧紧头 3插入插孔拧紧 13 头后旋转公端拧紧头 3即可将公端拧紧头 3拧入母端拧紧头 13并推挤母端拧紧头 13， 母端 拧紧头 13与所述中间阻隔部位之间的缝隙内设有一密封圈 8， 母端拧紧头公端拧紧头 3推挤 密封圈后密封性更佳。
本实用新型提供的防水连接器， 其还可以设置多个母连接头 22， 这样一个防水连接器就 可以用于多个用电器的供电， 并且所述多个母连接头 22经一体注塑成型，加工方便。如图 3、 4、 5所示分别为一分二、 一分三、 一分四的防水连接器。 所述一体注塑成型的多个母连接头 的电气方式可为全串联， 或者全并联， 或者串并联结合。
具体地说， 一种防水连接器组， 防水连接器组至少包括一组或多组防水连接器， 每一组 防水连接器包括至少包括公连接头与母连接头， 其中一个为输入端， 另一个为输出端， 所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所 述公端子座上， 所述公端子插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公 端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线 绝缘层部分；
所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所 述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所述母端拧紧头套设并固定于 所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导线绝缘层部分；
母连接头的母端拧紧头和公连接头的公端拧紧头配合拧紧连接， 并且， 所述防水连接器 组之间通过各自的公连接头或母连接头相互并联或串联或串并联。
母连接头的母端拧紧头和公连接头的公端拧紧头配合拧紧连接， 比如： 公端拧紧头外侧 设有外侧螺纹， 所述母端拧紧头内侧设有与所述外侧螺纹相拧合的内侧螺纹。
所述第一外壳 /第二外壳同时包括 PU密封层与尼龙密封层， 所述尼龙密封层套设于所述 PU密封层表面， 所述 PU密封层与所述尼龙密封层分别为经一次注塑成型形成的； 或所述第 一外壳 /第二外壳为经过一次注塑成型形成的尼龙密封层。
所述第一外壳为经过一次注塑成型形成的塑料密封层， 其直径 A1的设置为比直径 A小 1-5 mm, A为所述第一外壳由 PU密封层与尼龙密封层分别注塑成型的第一外壳直径； 和 /或 第二外壳为经过一次注塑成型形成的塑料密封层， 其直径 B1的设置为比直径 B小 1-5 mm, B为第二外壳由 PU密封层与尼龙密封层分别注塑成型的第二外壳直径。
并且， 公端拧紧头 32与母端拧紧头 13也可以为尼龙密封层或其它塑料材料， 经过一次 注塑成型形成。
本实施例提供的所述公连接头 21的制作过程为：
公端子 1头部穿入公端子座 2， 尾部位于公端子座 2之外；
公端拧紧头 3套设在公端子座 2的外部，位于公端子座 2尾部的公端子与电线接头连接； PU密封套 5注塑在公端子 1与电线接头连接处， 并包覆一部分公端子座 2尾部部位和 部分电线绝缘层；
尼龙密封套 6注塑在 PU密封套 5之外，其尾部略长于 PU密封套， 并包覆部分电线绝缘 层。
如果 PU密封套 5和尼龙密封套 6只设置有一层的塑料密封套 61， 则制作过程为： 公端 子 1头部穿入公端子座 2， 尾部位于公端子座 2之外； 公端拧紧头 3套设在公端子座 2的外 部， 位于公端子座 2尾部的公端子与电线接头连接； 尼龙密封套 61， 注塑在公端子 1与电线 接头连接处， 并包覆一部分公端子座 2尾部部位和全部电线绝缘层。
本实施例提供的母连接头 22的制作过程为：
将母端子 11头部穿入母端子座 12， 尾部位于母端子座 12之外；
母端拧紧头 13套设在母端子座 12上；
母端子 11的头部与电线接头连接；
PU密封套 7注塑在母端子 11与电线连接处， 并包覆母端拧紧头 13底部、 母端子座 12 尾部部位和部分电线绝缘层；
尼龙密封套 8注塑在 PU密封套 7之外， 其尾部略长于 PU密封套 7， 并包覆部分电线绝 缘层。
如果 PU密封套 7和尼龙密封套 8只设置有一层的塑料密封套 81， 则制作过程为： 将母 端子 11头部穿入母端子座 12， 尾部位于母端子座 12之外； 母端拧紧头 13套设在母端子座 12上； 母端子 11的头部与电线接头连接； 塑料密封套 81塑在母端子 11与电线连接处， 并 包覆母端拧紧头 13底部、 母端子座 12尾部部位和全部电线绝缘层。
防水连接器的拧紧头采用铝型材加工而成， 插针连接头和插孔连接头连接紧密， 防护等 级高。
防水连接器的密封套采用 PU材料和尼龙材料二次注塑成型， 由于尼龙材料户外防护性 能较好， 且 PU材料耐候性较好， 因此， 防水连接器的防护等级高； 防水连接器的 PVC材料 密封套与电线的橡胶防护套之间粘合牢靠， 从而避免水分从连接头尾部和电线之间的缝隙渗 入。
以上公开的本实用新型优选实施例只是用于帮助阐述本实用新型。 优选实施例并没有详 尽叙述所有的细节， 也不限制该实用新型仅为所述的具体实施方式。 显然， 根据本说明书的 内容， 可作很多的修改和变化。 本说明书选取并具体描述这些实施例， 是为了更好地解释本 实用新型的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本实用新型。 本实用新型仅受权利要求书及其全部范围和等效物的限制。

Claims

权 利 要 求 书
1、一种防水连接器， 其特征在于， 其包括至少一个公连接头， 所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所述公端子座上， 所述公端子插进 公端子座的一端与导线连接， 所述公端拧紧头套设于所述公端子座上并沿所述公端子座具有 一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线绝缘层部分；
所述公端拧紧头外侧设有螺纹， 所述公端拧紧头为铝制材质。
2、 如权利要求 1所述的防水连接器， 其特征在于， 所述第一外壳同时包括 PU密封层与 尼龙密封层， 所述尼龙密封层套设于所述 PU密封层表面， 所述 PU密封层与所述尼龙密封层 分别为经一次注塑成型形成的。
3、 如权利要求 1所述的防水连接器， 其特征在于， 所述公端子座设置有头部限位部位、 中间活动部位以及尾部注塑部位， 所述公端拧紧头在沿所述中间活动部位具有一段可移动行 程； 所述公端拧紧头套设于所述中间活动部位并由所述头部限位部位阻止其脱离所述公端子 座， 所述尾部注塑部位设计有螺纹。
4、 如权利要求 1所述防水连接器， 所述公连接头设置有隔断以及防呆结构。
5 、 一种防水功能的母连接头， 其特征在于， 所述母连接头包括母端子、 母端子座、 母 端拧紧头以及第二外壳， 所述母端子插设于所述母端子座上， 所述母端子插进母端子座的一 端与导线连接， 所述母端拧紧头套设并固定于所述母端子座上， 所述第二外壳包覆在所述母 端拧紧头底部至导线绝缘层部分；
所述母拧紧头内侧设有螺纹， 所述母拧紧头为铝制材质。
6 、 如权利要求 5所述的母连接头， 其特征在于， 所述母端子座设置有头部部位、 中间 阻隔部位以及尾部注塑部位， 所述母端拧紧头固定于所述头部部位， 所述尾部注塑部位设计 有螺纹， 所述母端拧紧头与所述中间阻隔部位之间设有一密封圈。
7、 如权利要求 5所述的母连接头， 其特征在于， 所述第二外壳同时包括 PU密封层与尼 龙密封层， 所述尼龙密封层套设于所述 PU密封层表面， 所述 PU密封层与所述尼龙密封层分 别为经一次注塑成型形成的。
8 、 如权利要求 5所述的母连接头， 其特征在于， 其还设置有隔空与凹槽。
9、 一种防水连接器， 包括公连接头与母连接头， 其中一个为输入端， 另一个为输出端， 其特征在于，
所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所 述公端子座上， 所述公端子插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公 端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线 绝缘层部分；
所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所 述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所述母端拧紧头套设并固定于 所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导线绝缘层部分；
所述公端拧紧头外侧设有外侧螺纹， 所述母端拧紧头内侧设有与所述外侧螺纹相拧合的 内侧螺纹。
10、 如权利要求 9所述的防水连接器， 其特征在于， 所述公端子座设置有头部限位部位、 中间活动部位以及尾部注塑部位， 所述公端拧紧头在沿所述中间活动部位具有一段可移动行 程， 所述公端拧紧头套设于所述中间活动部位并由所述头部限位部位阻止其脱离所述公端子 座， 所述尾部注塑部位设计有螺纹； 所述母端子座设置有头部部位、 中间阻隔部位以及尾部 注塑部位， 所述母端拧紧头固定于所述头部部位， 所述尾部注塑部位设计有螺纹。
11、 一种防水连接器组， 其特征在于， 防水连接器组至少包括一组或多组防水连接器， 每 一组防水连接器包括至少包括公连接头与母连接头， 其中一个为输入端， 另一个为输出端， 所述公连接头包括公端子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所 述公端子座上， 所述公端子插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公 端子座上并沿所述公端子座具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线 绝缘层部分；
所述母连接头包括母端子、 母端子座、 母端拧紧头以及第二外壳， 所述母端子插设于所 述母端子座上， 所述母端子插进母端子座的一端与导线连接， 所述母端拧紧头套设并固定于 所述母端子座上， 所述第二外壳包覆在所述母端拧紧头底部至导线绝缘层部分；
母连接头的母端拧紧头和公连接头的公端拧紧头配合拧紧连接， 并且， 所述防水连接器 组之间通过各自的公连接头或母连接头相互并联或串联或串并联。
12、 如权利要求 11所述的防水连接器组， 其特征在于， 所述公端拧紧头外侧设有外侧 螺纹， 所述母端拧紧头内侧设有与所述外侧螺纹相拧合的内侧螺纹。
13、 如权利要求 11所述的防水连接器组， 其特征在于，
所述第一外壳为经过一次注塑成型形成的塑料密封层， 其直径 A1的设置为比直径 A小 1-5 mm, A为所述第一外壳由 PU密封层与尼龙密封层分别注塑成型的第一外壳直径； 和 /或 第二外壳为经过一次注塑成型形成的塑料密封层， 其直径 B1 的设置为比直径 B小 1-5 mm, B为第二外壳由 PU密封层与尼龙密封层分别注塑成型的第二外壳直径。
14、 一种防水连接器， 其特征在于， 其包括至少一个公连接头， 所述公连接头包括公端 子、 公端子座、 公端拧紧头以及第一外壳， 所述公端子插设于所述公端子座上， 所述公端子 插进公端子座的一端与导线连接， 所述公端拧紧头套设于所述公端子座上并沿所述公端子座 具有一段移动行程， 所述第一外壳包覆在公端拧紧头底部至导线绝缘层部分， 并且， 所述公 端拧紧头外侧设有螺纹， 并且， 所述公连接头的第一外壳由塑料一体注塑成型。
15、 如权利要求 14所述的防水连接器， 其特征在于， 所述第一外壳为经过一次注塑成型 形成的塑料密封层， 其直径 A1的设置为比直径 A小 1-5 mm, A为所述第一外壳由 PU密封层 与尼龙密封层分别注塑成型的第一外壳直径。
16、 一种防水功能的母连接头， 其特征在于， 所述母连接头包括母端子、 母端子座、 母 端拧紧头以及第二外壳， 所述母端子插设于所述母端子座上， 所述母端子插进母端子座的一 端与导线连接， 所述母端拧紧头套设并固定于所述母端子座上， 所述第二外壳包覆在所述母 端拧紧头底部至导线绝缘层部， 所述母拧紧头内侧设有螺纹， 并且， 所述母连接头的第二外 壳由塑料一体注塑成型。
17、 如权利要求 16所述的防水连接器， 其特征在于， 所述第二外壳为经过一次注塑成型 形成的塑料密封层， 其直径 B1的设置为比直径 B小 1-5 mm, B为第二外壳由 PU密封层与尼 龙密封层分别注塑成型的第二外壳直径。
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