CN215869970U - Waterproof connecting terminal and electric automobile rifle that charges - Google Patents

Waterproof connecting terminal and electric automobile rifle that charges Download PDF

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Publication number
CN215869970U
CN215869970U CN202120665978.5U CN202120665978U CN215869970U CN 215869970 U CN215869970 U CN 215869970U CN 202120665978 U CN202120665978 U CN 202120665978U CN 215869970 U CN215869970 U CN 215869970U
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China
Prior art keywords
terminal body
waterproof
inner cavity
terminal
section
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CN202120665978.5U
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Chinese (zh)
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刁华伟
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Guangdong Jingchang Electronics Co ltd
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Guangdong Jingchang Electronics Co ltd
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Priority to CN202120665978.5U priority Critical patent/CN215869970U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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Abstract

In the waterproof connecting terminal and the electric vehicle charging gun, on one hand, the waterproof component is formed in the inner cavity of the terminal body through the injection hole so as to form an internal functional component, and the internal functional component is abutted against the side wall of the inner cavity of the terminal body so as to seal the inner cavity of the terminal body; on the other hand, the waterproof member is formed and wrapped on the periphery of the terminal body and the ring groove, so that an external mounting member embedded into the ring groove is formed; the internal functional component is fixedly connected with the external mounting component. Therefore, after the structure is adopted, on one hand, the strength of the structure of the terminal body can be obviously enhanced, the terminal body is ensured not to be deformed easily when being extruded, the potential safety hazard of the terminal body in the use process is reduced, on the other hand, the efficient waterproof installation between the waterproof connecting terminal and the electric automobile charging gun can be realized, and the application requirement of high-grade waterproof can be well met.

Description

Waterproof connecting terminal and electric automobile rifle that charges
Technical Field
The utility model belongs to the technical field of connectors, and particularly relates to a waterproof connecting terminal and an electric vehicle charging gun.
Background
As a green vehicle with a wide development prospect, the new energy electric automobile can be popularized very rapidly in the future along with the development of the new energy electric automobile technology.
The application and development of new energy electric vehicles are also actively promoted by the national government, so that related facilities and charging connectors matched with the new energy electric vehicles are also generated.
The main charging facilities of the new energy electric automobile comprise a charging pile, a charging gun, a charging socket, an in-car high-voltage connector and the like. Wherein current rifle that charges because its structural design reason still can not play fine waterproof effect, and the weather condition sudden change, after like the strong storm rain, rainwater among the external environment enters into the rifle that charges from power supply terminal side very easily inside, and the rifle that charges just has the hidden danger of intaking the short circuit this moment, seriously influences the safety of the rifle that charges, causes the rifle life that charges short-circuit, in case the short circuit in addition, will change it again, so the resource has been wasted again.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waterproof connecting terminal and an electric vehicle charging gun, and aims to solve the technical problem that due to structural design reasons of the charging gun in the prior art, the charging gun has the hidden trouble of short water inlet circuit, the safety of the charging gun is seriously affected, and the service life of the charging gun is short.
In order to achieve the above object, one embodiment of the present invention provides a waterproof connecting terminal, including:
the terminal comprises a terminal body, a terminal body and a terminal body, wherein the inner cavity of the terminal body is hollow, two ends of the terminal body are opened, a ring groove is annularly formed in the periphery of the middle of the terminal body, and an injection hole communicated with the inner cavity of the terminal body is formed in the ring groove;
the waterproof component is coaxially arranged with the terminal body and is firmly combined with the terminal body;
on one hand, the waterproof component is formed in the inner cavity of the terminal body through the injection hole to form an internal functional component, and the internal functional component is abutted against the side wall of the inner cavity of the terminal body to seal the inner cavity of the terminal body; the waterproof member is molded and wrapped on the periphery of the terminal body and the ring groove, so that an external mounting member embedded into the ring groove is formed; the internal functional component is fixedly connected with the external mounting component.
Optionally, the internal functional component comprises a structural reinforcement; the structure reinforcing piece is accommodated in the inner cavity of the terminal body and abuts against the side wall of the inner cavity of the terminal body so as to reinforce the strength of the terminal body.
Optionally, the internal functional component further comprises an insulating plug; the main body of the insulating plug is accommodated in the inner cavity of the terminal body, is integrally connected with the structural reinforcing piece and is coaxially arranged; the end of the insulating plug extends along the length direction of the terminal body and protrudes out of the plugging end of the terminal body so as to guide the plugging path of the terminal body.
Optionally, the insulating plug comprises an insertion section and a connection section; the insertion section, the connecting section and the structural reinforcement are integrally connected and coaxially arranged; the plug-in section is in a cone frustum shape, the end face of the head of the plug-in section is smaller than the end face of the tail of the plug-in section, and a slope which becomes thinner from back to front is formed, so that the insulating plug is smoothly guided into the jack of the socket.
Optionally, the internal functional component further comprises a waterproof plug; the main body of the waterproof bolt is accommodated in the inner cavity of the terminal body, is integrally connected with the structural reinforcing piece and is coaxially arranged; the end part of the waterproof plug extends to the wiring end of the terminal body along the length direction of the terminal body to prevent moisture from permeating into the inner cavity of the terminal body from the outside; and meanwhile, the waterproof bolt is integrally connected with the external mounting component through the injection hole and the inner cavity opening.
Optionally, the external mounting member comprises a plurality of ribs arranged in series along its length
The first annular table is formed and wrapped on the annular groove, and the peripheral surface of the first annular table protrudes out of the terminal body;
the second annular table is arranged on one side of the first annular table at intervals, is wrapped on the annular groove in a forming mode, and meanwhile, the outer peripheral surface of the second annular table protrudes out of the terminal body;
the third annular table is arranged on one side of the second annular table at intervals, is wrapped on the periphery of the terminal body and the annular groove in a forming mode, and meanwhile, the outer peripheral surface of the third annular table protrudes out of the terminal body;
the first annular table and the second annular table are internally formed with a first-stage annular mounting groove used for mounting a sealing rubber ring in a recessed mode, and the second annular table and the third annular table are internally formed with a second-stage annular mounting groove used for being matched and clamped in a recessed mode.
Optionally, the terminal body is stamped from a single piece of sheet metal; the terminal body comprises a first pair of folding sheets and a second pair of folding sheets which are symmetrical to the first pair of folding sheets; the second pair of flaps are formed by extending the first pair of flaps, and the first pair of flaps and the second pair of flaps respectively have a first joint wall and a second joint wall which are oppositely arranged; when the first pair of flaps and the second pair of flaps are mutually opposite, the first seam wall and the second seam wall are arranged in a circumferential direction opposite to each other and enclose a tube cavity.
Optionally, the terminal body comprises along its longitudinal axis:
the plugging section is positioned on the front side of the terminal body and is used for being in butt-plugging fit with the socket;
the wiring section is positioned on the rear side of the terminal body and is used for being pressed on the lead;
the injection connecting part is positioned in the middle of the terminal body, is connected between the plugging section and the wiring section and is used for forming the waterproof component on the terminal body;
the injection molding connecting part is respectively communicated with the plug section and the wiring section, and meanwhile, the injection molding connecting part is arranged in a manner that the plug section and the wiring section are sunken downwards relative to two sides, so that the annular groove is formed.
Optionally, the wire segment includes a first crimp wing and a second crimp wing; the first crimp wing portion is disposed proximate the front side of the terminal body relative to the second crimp wing portion, wherein the first crimp wing portion and the second crimp wing portion are formed continuously; the wire segment has a first width in a direction perpendicular to the longitudinal axis and a second width in a direction perpendicular to the longitudinal axis in a flattened state, the first width being greater than the second width.
One or more technical solutions in the waterproof connecting terminal provided by the embodiment of the present invention at least have one of the following technical effects: compared with the prior art, in the waterproof connecting terminal, on one hand, the external mounting component is molded and wrapped on the periphery of the terminal body and the annular groove, and meanwhile, the external mounting component is assembled on the electric automobile charging gun after being provided with the sealing rubber ring, so that efficient waterproof installation between the waterproof connecting terminal and the electric automobile charging gun is realized, and the application requirement of high-grade waterproof can be well met; on the other hand, the internal functional component is abutted against the side wall of the inner cavity of the terminal body to seal the inner cavity of the terminal body, so that double sealing of the waterproof connecting terminal is formed, and the waterproof connecting terminal has high sealing reliability. Meanwhile, under the mutual cooperation of the internal functional component, the external installation component and the sealing rubber ring, when liquid splashes to the waterproof connecting terminal outside, the liquid can be effectively prevented from flowing back and permeating, so that the liquid cannot permeate into the part of the wiring (cable welding, crimping or locking copper plate), short circuit and electric leakage accidents are avoided, and the service life is prolonged.
In order to achieve the above object, an embodiment of the present invention provides an electric vehicle charging gun, which includes the above waterproof connecting terminal.
One or more technical schemes in the electric vehicle charging gun provided by the embodiment of the utility model at least have one of the following technical effects: compared with the prior art, the electric vehicle charging gun has multiple waterproof structures by applying the waterproof connecting terminal, and can well meet the application requirement of high-grade waterproofing; under this electric automobile rifle and socket not the plug-in state of charging, if the external liquid splash this electric automobile rifle or socket when to the plug-in, liquid can not permeate the wiring part of this electric automobile rifle that charges, avoids causing short circuit and electric leakage accident, safe and reliable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a perspective view of a waterproof connection terminal according to an embodiment of the present invention.
Fig. 2 is an exploded view of a waterproof connection terminal according to an embodiment of the present invention.
Fig. 3 is a front view of a waterproof connection terminal according to an embodiment of the present invention.
Fig. 4 is a sectional view taken along line a-a in fig. 3.
Fig. 5 is a schematic structural view of a waterproof member according to an embodiment of the present invention.
Fig. 6 is a first schematic structural diagram of a terminal body according to an embodiment of the present invention.
Fig. 7 is a second schematic structural diagram of a terminal body according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100. a terminal body; 110. A ring groove; 111. An injection hole;
120. a first pair of flaps; 121. A first seam wall; 130. A second pair of tabs;
131. a second seam wall; 140. A plugging section; 150. A wire connection section;
151. a first crimp wing; 152. A second crimp wing; 160. Injection molding the connecting part;
200. a waterproof member; 210. An internal functional component; 211. A structural reinforcement;
212. an insulating plug; 2121. An insertion section; 2122. A connecting section;
213. a waterproof plug; 220. An external mounting member; 221. A first annular table;
222. a second annular table; 223. A third annular table; 224. A primary annular mounting groove;
225. and a secondary annular mounting groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the present invention, as shown in fig. 1 to 4, there is provided a waterproof connection terminal including:
the terminal comprises a terminal body 100, wherein the inner cavity of the terminal body 100 is hollow, two ends of the terminal body are open, a ring groove 110 is annularly arranged on the periphery of the middle part of the terminal body 100, and an injection hole 111 communicated with the inner cavity of the terminal body 100 is formed in the ring groove 110;
and a waterproof member 200, the waterproof member 200 being coaxially disposed with the terminal body 100 and being firmly combined with the terminal body 100;
on one hand, the waterproof member 200 is molded in the inner cavity of the terminal body 100 through the injection hole 111, so as to form an internal functional member 210, and the internal functional member 210 abuts against the side wall of the inner cavity of the terminal body 100 to seal the inner cavity of the terminal body 100; the waterproof member 200 is molded and wrapped on the outer circumference of the terminal body 100 and the ring groove 110 to form an external mounting member 220 embedded in the ring groove 110; the internal functional component 210 is fixedly connected to the external mounting component 220.
Specifically, in this embodiment, on one hand, the external mounting member 220 is molded and wrapped around the periphery of the terminal body 100 and the annular groove 110, and meanwhile, the external mounting member 220 is assembled on the electric vehicle charging gun after being mounted with a sealing rubber ring, so that efficient waterproof mounting between the waterproof connecting terminal and the electric vehicle charging gun is realized, and the application requirement of high-grade waterproof can be well met; on the other hand, the internal functional component 210 abuts against the sidewall of the inner cavity of the terminal body 100 to seal the inner cavity of the terminal body 100, so as to form double sealing of the waterproof connecting terminal, so that the waterproof connecting terminal has high sealing reliability. Meanwhile, through the mutual cooperation of the internal functional component 210, the external mounting component 220 and the sealing rubber ring, when liquid splashes to the waterproof connecting terminal outside, the liquid can be effectively prevented from flowing back and permeating, so that the liquid cannot permeate into the part of a connecting wire (a cable is welded, crimped or locked with a copper plate), short circuit and electric leakage accidents are avoided, and the service life is prolonged.
In another embodiment of the present invention, as shown in FIGS. 4-5, the internal functional components include structural reinforcement 211; the structural reinforcement member 211 is accommodated in the inner cavity of the terminal body 100 and abuts against the sidewall of the inner cavity of the terminal body 100, so as to reinforce the strength of the terminal body 100. Specifically, in the present embodiment, the structural reinforcement member 211 is molded and received in the inner cavity of the terminal body 100, so that the structural reinforcement member 211 can be tightly attached to the inner cavity of the terminal body 100 and firmly combined with the terminal body 100. Meanwhile, the structural reinforcement member 211 abuts against the side wall of the inner cavity of the terminal body 100, so that the structural reinforcement member 211 supports the terminal body 100, the rigidity of the terminal body 100 can be effectively enhanced, the structural stability is enhanced, the terminal body 100 is guaranteed not to be easily deformed when being extruded, the structural strength of the terminal body 100 can be obviously enhanced, and potential safety hazards of the terminal body 100 in the using process are reduced.
In another embodiment of the present invention, as shown in FIGS. 4-5, the internal functional component further comprises an insulating plug 212; the main body of the insulating plug 212 is accommodated in the inner cavity of the terminal body 100, integrally connected with the structural reinforcement 211 and coaxially arranged; the end of the insulating plug 212 extends along the length of the terminal body 100 and protrudes from the insertion end of the terminal body 100 to guide the insertion path of the terminal body 100. Specifically, in the present embodiment, the insulating plug 212 is made of a hard insulating material, so that the waterproof connecting terminal has high safety in protection, and when the waterproof connecting terminal of the present invention is touched by mistake with a water source, a metal conductor, or a body, the problem of electric shock or short circuit does not occur. Therefore, the waterproof connecting terminal can be connected in an electrified way, the potential safety hazards of discharging, short circuit and electric shock during connection are avoided, the function of preventing mistaken touch is also realized on operating personnel, the human body cannot be injured, and the problem of endangering property safety cannot occur.
In addition, the diameter of the insulating plug 212 is smaller than that of the terminal body 100, so that the terminal body 100 can smoothly complete the butt joint, the waterproof connecting terminal of the utility model is prevented from being inclined, and the waterproof connecting terminal is ensured to be stably contacted with a plug-in unit.
4-5, the insulating plug 212 includes an insertion section 2121 and a connection section 2122; the insertion section 2121, the connection section 2122 and the structural reinforcement 211 are integrally connected and coaxially arranged; the insertion section 2121 is in a truncated cone shape, and a head end surface of the insertion section 2121 is smaller than a tail end surface of the insertion section 2121 to form a taper that is gradually thinner from back to front, so that the insulating plug 212 is smoothly guided into the insertion hole of the socket.
In another embodiment of the present invention, as shown in fig. 4 to 5, the inner functional member further includes a waterproof plug 213; the main body of the waterproof plug 213 is accommodated in the inner cavity of the terminal body 100, integrally connected with the structural reinforcement 211 and coaxially disposed; the end of the waterproof plug 213 extends to the terminal of the terminal body 100 along the length direction of the terminal body 100 to prevent moisture from penetrating into the inner cavity of the terminal body 100 from the outside; and the waterproof plug 213 is integrally connected to the external mounting member 220 through the injection hole 111 and the inner cavity opening. Specifically, in the present embodiment, since the waterproof plug 213 is molded and received in the inner cavity of the terminal body 100, the waterproof plug 213 can abut against the sidewall of the inner cavity of the terminal body 100 to close the inner cavity of the terminal body 100. On one hand, the waterproof bolt 213 is firmly combined with the terminal body 100, so that the phenomenon that the waterproof bolt 213 is separated from the terminal body 100 is effectively avoided, the structure is more reliable, the reworking on a production line is avoided, and the production efficiency is improved; on the other hand, the waterproof plug 213 effectively prevents water from penetrating from the joint to cause short circuit of the wiring portion, so that the waterproof connection terminal effectively plays a waterproof and splash-proof function.
In another embodiment of the present invention, as shown in FIGS. 3 to 5, the exterior mounting member 220 includes a plurality of protrusions sequentially arranged along a length direction thereof
A first annular land 221, wherein the first annular land 221 is formed and wrapped on the annular groove 110, and the outer peripheral surface of the first annular land 221 protrudes out of the terminal body 100;
a second annular table 222, wherein the second annular table 222 is disposed at one side of the first annular table 221 at an interval and is formed and wrapped on the annular groove 110, and the outer circumferential surface of the second annular table 222 protrudes from the terminal body 100;
and a third annular table 223, the third annular table 223 is disposed at one side of the second annular table 222 at intervals and is formed and wrapped on the outer circumference of the terminal body 100 and the annular groove 110, and meanwhile, the outer circumference of the third annular table 223 protrudes out of the terminal body 100;
a primary annular mounting groove 224 for mounting a sealing rubber ring is formed between the first annular table 221 and the second annular table 222 in an inward recessed manner, and a secondary annular mounting groove 225 for matching and clamping is formed between the second annular table 222 and the third annular table 223 in an inward recessed manner.
Specifically, in this embodiment, on one hand, the primary annular mounting groove 224 plays a role in limiting the sealing rubber ring, and the sealing rubber ring is clamped in the primary annular mounting groove 224 and clamped between the first annular platform 221 and the second annular platform 222 on two sides, so that the sealing rubber ring does not fall off during operation, and the reliability is high, thereby ensuring the sealing reliability of the waterproof connecting terminal of the present invention. On the other hand, the second-stage annular mounting groove 225 has a limiting effect on the mounting shell of the electric vehicle charging gun, the mounting shell of the electric vehicle charging gun is clamped in the second-stage annular mounting groove 225 and clamped by the second annular table 222 and the third annular table 223 on two sides, so that the mounting shell cannot fall off during working, the reliability is high, and the connection stability of the waterproof connection terminal is further ensured.
In addition, since the first-stage annular mounting groove 224 and the second-stage annular mounting groove 225 are spaced apart from each other by the second annular table 222, the first-stage annular mounting groove 224 and the second-stage annular mounting groove 225 are independent from each other, so that the sealing rubber ring mounted therein does not interfere with the mounting housing, and the operation is stable.
In another embodiment of the present invention, as shown in fig. 6, the terminal body 100 is stamped from a single piece of sheet metal; the terminal body 100 comprises a first pair of flaps 120 and a second pair of flaps 130 which are structurally symmetrical with the first pair of flaps 120; wherein the second pair of flaps 130 is formed by extending the first pair of flaps 120, and the first pair of flaps 120 and the second pair of flaps 130 respectively have a first seam wall 121 and a second seam wall 131 which are oppositely arranged; when the first pair of flaps 120 and the second pair of flaps 130 are aligned with each other, the first seam wall 121 and the second seam wall 131 are circumferentially aligned and enclose a lumen. Specifically, in the present embodiment, first, the terminal body 100 is made of a metal material, which effectively increases the tensile strength of the terminal body. Secondly, the terminal body 100 is formed by one-time processing and punching of sheet metal plates, and the integral design form effectively increases the overall structural strength of the terminal body 100. Finally, the terminal body 100 is reasonable in structure, easy to mold and process, time-saving and material-saving, and the whole process of manufacturing the terminal body 100 is free of assembling steps, so that the difficulty and the production cost are reduced, the production efficiency can be effectively improved, and the market competitiveness is enhanced.
In another embodiment of the present invention, as shown in fig. 7, the terminal body 100 includes along its longitudinal axis:
the plugging section 140 is located on the front side of the terminal body 100, and is used for being in plugging fit with a socket;
a wire connecting section 150, the wire connecting section 150 being located at the rear side of the terminal body 100 for crimping onto a wire;
and an injection molding connection part 160, the injection molding connection part 160 being located at the middle of the terminal body 100 and connected between the plugging section 140 and the wire connection section 150 for molding the waterproof member 200 on the terminal body 100;
the injection molding connecting part 160 is respectively communicated with the plugging section 140 and the wiring section 150, and meanwhile, the injection molding connecting part 160 is arranged in a downward concave manner relative to the plugging section 140 and the wiring section 150 on two sides, so that the annular groove 110 is formed.
Specifically, in the embodiment, the plugging section 140, the injection molding connecting part 160 and the wire connecting section 150 together form the annular groove 110, and the waterproof member 200 is filled into the annular groove 110 and fixed by injection molding, so that the annular groove 110 can position the waterproof member 200 in the injection molding process, thereby improving the injection molding quality of the product, and meanwhile, the flow of the waterproof member 200 is not affected in the injection molding process, thereby improving the dimensional accuracy of the waterproof connecting terminal of the present invention.
In another embodiment of the present invention, as shown in fig. 7, the wire segment 150 includes a first crimp wing portion 151 and a second crimp wing portion 152; the first crimp wing part 151 is disposed close to the front side of the terminal body 100 with respect to the second crimp wing part 152, wherein the first crimp wing part 151 and the second crimp wing part 152 are continuously formed; in the flattened state of the wire segment 150, the first crimp wing portion 151 has a first width in a direction perpendicular to the longitudinal axis, and the second crimp wing portion 152 has a second width in a direction perpendicular to the longitudinal axis, the first width being greater than the second width.
Specifically, in this embodiment, the cable is placed in the space surrounded by the first crimp wing part 151 and the second crimp wing part 152, and the crimping operation of the crimping tool makes the two sides of the first crimp wing part 151 and the second crimp wing part 152 converge towards the middle, and finally makes the first crimp wing part 151 and the second crimp wing part 152 crimp onto the cable, and the side edges of the first crimp wing part 151 and the second crimp wing part 152 squeeze into the cable, so as to achieve a good and reliable crimping fit.
Meanwhile, since the first crimp wing portions 151 near the front side of the terminal body 100 have a large width and the second crimp wing portions 152 near the rear side have a relatively small width, when both are crimped to a cable using the same crimping tool, the first crimp wing portions 151 at the front side and the second crimp wing portions 152 at the rear side will be crimped to the cable with different compression ratios. The side edges of the first crimp wing portions 151 are curled inward, a portion of the outer surfaces of the first crimp wing portions 151 near the side edges abut against each other, and the second crimp wing portions 152 abut against each other at the side edges thereof after crimping. Thus, the high compression rate of the first crimp wing portion 151 on the front side enhances electrical performance, while the low compression rate of the second crimp wing portion 152 on the rear side enhances mechanical performance. It can be seen that the waterproof connecting terminal of the present invention has the first crimp wing part 151 and the second crimp wing part 152 having different compression rates in front and rear thereof, and thus, can achieve better stress relief while maintaining better mechanical properties while protecting the cable. Compared with the traditional covered wire design, the pull-out resistance and the twisting resistance of the crimping are better.
In another embodiment of the utility model, an electric vehicle charging gun is provided, which comprises the waterproof connecting terminal. Specifically, in the embodiment, the waterproof connecting terminal is applied, so that the waterproof connecting terminal has a multiple waterproof structure, and the application requirement of high-grade waterproof can be well met; under this electric automobile rifle and socket not the plug-in state of charging, if the external liquid splash this electric automobile rifle or socket when to the plug-in, liquid can not permeate the wiring part of this electric automobile rifle that charges, avoids causing short circuit and electric leakage accident, safe and reliable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A waterproof connecting terminal, comprising:
the terminal comprises a terminal body, a terminal body and a terminal body, wherein the inner cavity of the terminal body is hollow, two ends of the terminal body are opened, a ring groove is annularly formed in the periphery of the middle of the terminal body, and an injection hole communicated with the inner cavity of the terminal body is formed in the ring groove;
the waterproof component is coaxially arranged with the terminal body and is firmly combined with the terminal body;
on one hand, the waterproof component is formed in the inner cavity of the terminal body through the injection hole to form an internal functional component, and the internal functional component is abutted against the side wall of the inner cavity of the terminal body to seal the inner cavity of the terminal body; the waterproof member is molded and wrapped on the periphery of the terminal body and the ring groove, so that an external mounting member embedded into the ring groove is formed; the internal functional component is fixedly connected with the external mounting component.
2. The waterproof connecting terminal according to claim 1, characterized in that: the internal functional component comprises a structural reinforcement; the structure reinforcing piece is accommodated in the inner cavity of the terminal body and abuts against the side wall of the inner cavity of the terminal body so as to reinforce the strength of the terminal body.
3. The waterproof connecting terminal according to claim 2, characterized in that: the internal functional component further comprises an insulating plug; the main body of the insulating plug is accommodated in the inner cavity of the terminal body, is integrally connected with the structural reinforcing piece and is coaxially arranged; the end of the insulating plug extends along the length direction of the terminal body and protrudes out of the plugging end of the terminal body so as to guide the plugging path of the terminal body.
4. The waterproof connecting terminal according to claim 3, characterized in that: the insulating plug comprises an insertion section and a connection section; the insertion section, the connecting section and the structural reinforcement are integrally connected and coaxially arranged; the plug-in section is in a cone frustum shape, the end face of the head of the plug-in section is smaller than the end face of the tail of the plug-in section, and a slope which becomes thinner from back to front is formed, so that the insulating plug is smoothly guided into the jack of the socket.
5. The waterproof connecting terminal according to claim 2, characterized in that: the internal functional component further comprises a waterproof plug; the main body of the waterproof bolt is accommodated in the inner cavity of the terminal body, is integrally connected with the structural reinforcing piece and is coaxially arranged; the end part of the waterproof plug extends to the wiring end of the terminal body along the length direction of the terminal body to prevent moisture from permeating into the inner cavity of the terminal body from the outside; and meanwhile, the waterproof bolt is integrally connected with the external mounting component through the injection hole and the inner cavity opening.
6. The waterproof connecting terminal according to claim 1, characterized in that: the external mounting members comprising a plurality of spaced apart mounting elements arranged in series along their length
The first annular table is formed and wrapped on the annular groove, and the peripheral surface of the first annular table protrudes out of the terminal body;
the second annular table is arranged on one side of the first annular table at intervals, is wrapped on the annular groove in a forming mode, and meanwhile, the outer peripheral surface of the second annular table protrudes out of the terminal body;
the third annular table is arranged on one side of the second annular table at intervals, is wrapped on the periphery of the terminal body and the annular groove in a forming mode, and meanwhile, the outer peripheral surface of the third annular table protrudes out of the terminal body;
the first annular table and the second annular table are internally formed with a first-stage annular mounting groove used for mounting a sealing rubber ring in a recessed mode, and the second annular table and the third annular table are internally formed with a second-stage annular mounting groove used for being matched and clamped in a recessed mode.
7. The waterproof connecting terminal according to any one of claims 1 to 6, characterized in that: the terminal body is formed by stamping a whole metal plate; the terminal body comprises a first pair of folding sheets and a second pair of folding sheets which are symmetrical to the first pair of folding sheets; the second pair of flaps are formed by extending the first pair of flaps, and the first pair of flaps and the second pair of flaps respectively have a first joint wall and a second joint wall which are oppositely arranged; when the first pair of flaps and the second pair of flaps are mutually opposite, the first seam wall and the second seam wall are arranged in a circumferential direction opposite to each other and enclose a tube cavity.
8. The waterproof connecting terminal according to any one of claims 1 to 6, characterized in that: the terminal body includes along its longitudinal axis:
the plugging section is positioned on the front side of the terminal body and is used for being in butt-plugging fit with the socket;
the wiring section is positioned on the rear side of the terminal body and is used for being pressed on the lead;
the injection connecting part is positioned in the middle of the terminal body, is connected between the plugging section and the wiring section and is used for forming the waterproof component on the terminal body;
the injection molding connecting part is respectively communicated with the plug section and the wiring section, and meanwhile, the injection molding connecting part is arranged in a manner that the plug section and the wiring section are sunken downwards relative to two sides, so that the annular groove is formed.
9. The waterproof connecting terminal according to claim 8, characterized in that: the wire segment includes a first crimp wing and a second crimp wing; the first crimp wing portion is disposed proximate the front side of the terminal body relative to the second crimp wing portion, wherein the first crimp wing portion and the second crimp wing portion are formed continuously; the wire segment has a first width in a direction perpendicular to the longitudinal axis and a second width in a direction perpendicular to the longitudinal axis in a flattened state, the first width being greater than the second width.
10. The utility model provides an electric automobile rifle that charges which characterized in that: comprising a waterproof connecting terminal according to any one of claims 1 to 9.
CN202120665978.5U 2021-03-31 2021-03-31 Waterproof connecting terminal and electric automobile rifle that charges Active CN215869970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120665978.5U CN215869970U (en) 2021-03-31 2021-03-31 Waterproof connecting terminal and electric automobile rifle that charges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120665978.5U CN215869970U (en) 2021-03-31 2021-03-31 Waterproof connecting terminal and electric automobile rifle that charges

Publications (1)

Publication Number Publication Date
CN215869970U true CN215869970U (en) 2022-02-18

Family

ID=80318586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120665978.5U Active CN215869970U (en) 2021-03-31 2021-03-31 Waterproof connecting terminal and electric automobile rifle that charges

Country Status (1)

Country Link
CN (1) CN215869970U (en)

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