CN116053830A - Special electric connector for rail transit air conditioning system - Google Patents

Special electric connector for rail transit air conditioning system Download PDF

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Publication number
CN116053830A
CN116053830A CN202310087233.9A CN202310087233A CN116053830A CN 116053830 A CN116053830 A CN 116053830A CN 202310087233 A CN202310087233 A CN 202310087233A CN 116053830 A CN116053830 A CN 116053830A
Authority
CN
China
Prior art keywords
insulator
shell
conditioning system
air conditioning
rail transit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310087233.9A
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Chinese (zh)
Inventor
满意
吴彤
吴旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhongche Yecheng Industrial Co ltd
Original Assignee
Shenzhen Zhongche Yecheng Industrial Co ltd
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 Shenzhen Zhongche Yecheng Industrial Co ltd filed Critical Shenzhen Zhongche Yecheng Industrial Co ltd
Priority to CN202310087233.9A priority Critical patent/CN116053830A/en
Publication of CN116053830A publication Critical patent/CN116053830A/en
Pending legal-status Critical Current

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    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • 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
    • 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
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • 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
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • 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
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The utility model provides a special electric connector of track traffic air conditioning system, relates to track traffic air conditioning system accessory technical field, and it can simplify the structure, optimize technology, make things convenient for the user to use, and be suitable for maintenance, saving cost input under the prerequisite that satisfies the function demand, ensures the performance requirement. In the special electric connector for the rail transit air conditioning system, a shell of a plug adopts a metal shell, an insulator adopts a jack insulator made of reinforced polyphenylene sulfide, the jack insulator is embedded in the shell, the shell is fixed with a connecting nut through a corrugated spring and a positioning clamp spring, and meanwhile, the connecting nut is provided with a wear-resistant pin; the tail part of the shell is connected with a detachable cup-shaped pipe in a straight mode, and the wire outlet end of the shell is provided with a straight type wire outlet cable connector with three locking holes; further, the socket includes: the square disc shell with the bayonet is provided with a sealing ring on the inner side; the compression force generated by the corresponding compression deformation of the sealing ring and the compression force generated by the compression deformation of the corrugated spring are balanced mutually.

Description

Special electric connector for rail transit air conditioning system
Technical Field
The invention relates to the technical field of accessories of rail transit air conditioning systems, in particular to a special electric connector for a rail transit air conditioning system.
Background
In the prior art, once there is an air conditioning system electric connector for a motor train unit, water leakage occurs in the middle frequency in the use process, and the phenomenon causes an air conditioning system alarm in the train operation process, so that the operation order of vehicles is affected, air conditioning water inflow can occur when serious, and the air conditioning cannot be normally used.
The special electric connector for air conditioning system is a circular electric connector, its main function is to connect the circuit, i.e. electric connection, its connection and separation are generally operated under the condition of no electricity, because the electric connector has simple structure, it belongs to component, it is often not appreciated by people in the development of equipment, and is easy to ignore, but its function is very important, and the fault will produce great influence.
Specifically, the inventor of the application finds that the air conditioner control connector frequently generates a water leakage phenomenon in the using process, the phenomenon causes an alarm of a train air conditioner system, seriously causes the condition of stopping work, influences the operation order of vehicles, and even seriously causes the re-disassembly and assembly of the whole air conditioner system, thereby bringing about serious economic loss and bad social influence.
Disclosure of Invention
The invention aims to provide the special electric connector for the rail transit air conditioning system, which can simplify the structure, optimize the process, facilitate the use of users, and is suitable for maintenance and saving the cost investment on the premise of meeting the functional requirements and ensuring the performance requirements.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an electric connector special for a rail transit air-conditioning system is composed of a butt-joint plug and a socket, wherein the plug is sequentially composed of a shell, an insulator and a contact body from outside to inside,
the shell adopts a metal shell, the insulator adopts a jack insulator made of reinforced polyphenylene sulfide, the jack insulator is embedded in the shell, the shell is fixed with a connecting nut through a corrugated spring and a positioning clamp spring, and meanwhile, the connecting nut is provided with a wear-resistant pin; the tail part of the shell is directly connected with a detachable cup-shaped pipe, and the wire outlet end of the shell is a straight type wire outlet cable connector with three locking holes;
the socket includes: the square disc shell with the bayonet is provided with a sealing ring at the inner side; the compression force generated by the corresponding compression deformation of the sealing ring and the compression force generated by the compression deformation of the corrugated spring are balanced.
In practical application, the insulator is combined in a two-body structure, the clamping claw is embedded into the rear insulator, the front insulator and the rear insulator are fixed in an adhesive mode, and the front insulator is sealed by an adhesive interface so as to effectively improve the creepage distance; the rear insulator is adhered to the wire sealing body, so that the waterproof performance and the dustproof performance are effectively improved.
The insulator is matched with the shell, the error-proofing function is achieved, and installation of different key positions is achieved through the change of key position grooves of the key and the insulator.
Specifically, the insulator and the shell are fixed in a bonding mode, and the bonding glue is J-206 glue for bonding;
after the insulator is adhered, the tail part of the insulator is subjected to encapsulation treatment, sealing is realized through silicon rubber, and the protection grade after sealing can reach IP68.
During practical application, the shell is matched with the connecting nut to realize positioning through the corrugated spring, the friction washer and the positioning clamp spring, and the connecting nut can ensure the stability of the butt joint of the plug and the socket under the action of the elastic force of the corrugated spring made of stainless steel and has an anti-falling function;
the corrugated spring and the positioning clamp spring are isolated by the friction washer, so that the smoothness of rotation of the connecting nut can be effectively ensured.
The friction washer is of a step structure and has the function of preventing the positioning clamp spring from being pulled out under the force.
Specifically, the material of the contact body is tin bronze, the jack reed of the tin bronze is in a hard-wired electric structure, the jack structure is provided with a protective sleeve, meanwhile, the protective sleeve is integrally formed by adopting a stainless steel pipe, and the protective sleeve is fixed with the jack in a four-point extrusion mode.
Further, the surface of the contact body is subjected to gold plating treatment.
Compared with the prior art, the special electric connector for the rail transit air conditioning system has the following advantages:
in the special electric connector for the rail transit air-conditioning system, the insulator is the jack insulator made of reinforced polyphenylene sulfide, so that the insulating property is excellent, and the consistency of the sizes and the properties of parts can be ensured through the injection mould, so that the special electric connector can resist external environmental conditions such as wind blowing, rain, sun drying and the like, and under the conditions, the normal use of the air-conditioning system of a train can be ensured, and all performance indexes can work normally; and it can simplify the structure, optimize the technology, facilitate the use of users, and is suitable for maintenance and saving the cost input under the precondition that the functional requirement is met, the performance requirement is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a plug in a special electrical connector for a rail transit air conditioning system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a socket in a special electrical connector for a rail transit air conditioning system according to an embodiment of the present invention.
Reference numerals:
1-a plug; 11-a housing; 12-an insulator; 13-contact body; 14-a wave spring; 15-positioning clamp springs; 16-connecting nuts; 17-bond; 18-friction washers;
2-a socket; 21-square disc shell with bayonet lock; 22-sealing ring.
Detailed Description
In order to facilitate understanding, the specific electrical connector for the rail transit air conditioning system provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
The embodiment of the invention provides a special electric connector for a rail transit air conditioning system, which is composed of a butt-joint plug 1 and a socket 2 as shown in fig. 1 and 2, wherein the plug 1 is composed of a shell 11, an insulator 12 and a contact body 13 from outside to inside in sequence,
the shell 11 adopts a metal shell, the insulator 12 adopts a jack insulator made of reinforced polyphenylene sulfide, the jack insulator is embedded in the shell 11, the shell 11 is fixed with the connecting nut 16 through the corrugated spring 14 and the positioning clamp spring 15, and meanwhile, the connecting nut 16 is provided with a wear-resistant pin; the tail part of the shell 11 is connected with a detachable cup-shaped pipe in a straight mode, and the wire outlet end of the shell is provided with a straight type wire outlet cable connector with three locking holes;
the socket 2 includes: a square disk shell 21 with a bayonet, wherein a sealing ring 22 is arranged on the inner side of the square disk shell 21 with the bayonet; the compressive force generated by the corresponding compressive deformation of the seal ring 22 and the compressive force generated by the compressive deformation of the bellows spring 14 are balanced with each other.
More specifically, in practical application, the compression space of the bellows spring: 6.45+0.10- (1±0.03) -0.9+0.10- (0.5±0.04) =4.05±0.17; pretightening force compression amount of the ripple spring: the height of each single wave spring is 3.6+0.30, 4 wave springs are assembled on the product, the total height of each wave spring is 3.6+0.3+ (0.5+/-0.02) multiplied by 3=5.1+0.36-0.06, and then the compression amount of the pretightening force of each wave spring is 5.1+0.36-0.06- (4.05+/-0.17) =1.05+0.53-0.23 (0.82-1.58). As shown by the calculation, the maximum compression deformation of the corrugated spring is 1.58, and the compression force generated by the corrugated spring is balanced with the compression force generated by the sealing ring, so that the maximum compression of the sealing ring is 0.9mm; i.e. the maximum compression of the sealing ring is 45% and is within the range of design experience values. Therefore, through the analysis, the maximum compression of the sealing ring is 0.9mm, the sealing ring cannot be permanently deformed, and the service life of ten years can be met.
Compared with the prior art, the special electric connector for the rail transit air conditioning system has the following advantages:
in the special electric connector for the rail transit air conditioning system, the insulator is the jack insulator made of reinforced polyphenylene sulfide, so that the insulating property is excellent, and the consistency of the sizes and the properties of parts can be ensured through the injection mould, so that the special electric connector can resist external environmental conditions such as wind blowing, rain, sun drying and the like, and under the conditions, the normal use of the air conditioning system of a train can be ensured, and all performance indexes can work normally; and it can simplify the structure, optimize the technology, facilitate the use of users, and is suitable for maintenance and saving the cost input under the precondition that the functional requirement is met, the performance requirement is ensured.
In practical application, the insulator 12 is combined into a two-body structure, the clamping jaws are embedded into the rear insulator, the front insulator and the rear insulator are fixed in an adhesive mode, and the front insulator and the rear insulator are tightly sealed through an adhesive interface so as to effectively improve the creepage distance; the rear insulator is adhered to the wire sealing body, so that the waterproof performance and the dustproof performance are effectively improved.
Wherein, the insulator 12 and the shell 11 cooperate with each other to realize the installation of different key positions through the change of key 17 and key position grooves of the insulator 12, thereby realizing the function of changing key positions and further effectively preventing the occurrence of misplug and misplug.
Specifically, the insulator 12 and the housing 11 may be fixed by bonding, and the bonding glue may preferably be J-206 glue;
after the insulator is bonded, the tail part of the insulator is subjected to encapsulation treatment, and sealing is realized through silicon rubber, so that the protection grade after sealing can reach IP68; in addition, the silicone rubber has the advantages of long service life, stable performance, good sealing performance and the like, and is convenient to encapsulate, short in curing time and the like.
In practical application, the shell 11 and the connecting nut 16 can be matched to realize positioning through the corrugated spring 14, the friction washer 18 and the positioning clamp spring 15, and the connecting nut 16 can ensure the stability of the butt joint of the plug 1 and the socket 2 through the elastic force of the corrugated spring 14 made of stainless steel, and has an anti-falling function;
isolation between the corrugated spring 14 and the positioning clamp spring 15 through the friction washer 18 can effectively ensure smoothness of rotation of the connecting nut 16 and effectively improve service life and performance stability of the corrugated spring 14.
The friction washer 18 may have a stepped structure, and has a function of preventing the positioning clamp spring 15 from being pulled out under force.
Specifically, the material of the contact body 13 may be tin bronze, so as to have fatigue resistance, corrosion resistance, and good elasticity, as a wear-resistant part and an elastic member; the jack reed of the tin bronze is hard-wired to the electrical structure, so that good contact, good elasticity and stable pulling and inserting can be ensured; and the jack structure has the protective sheath, and this protective sheath adopts stainless steel pipe integrated into one piece simultaneously to reduce cost and processing cycle, and fix protective sheath and jack through four-point extrusion's form, in order to provide the guarantee for follow-up process planning, can realize automated production and provide the guarantee, and this structure can guarantee the stability of the plug power value of jack in addition, can effectively prevent to decay and finally become invalid because of the power value that plug skew, misalignment lead to.
Tin bronze is alloy copper, has good conductivity, is not easy to heat, and has strong fatigue resistance while ensuring safety; in addition, the alloy has excellent machining performance and chip forming performance, and can shorten the machining time of parts.
Further, the surface of the contact 13 may be subjected to gold plating, so that stable and reliable signal transmission can be ensured.
In summary, the electrical connector special for the rail transit air conditioning system provided by the embodiment of the invention has the function of rapid plugging, is convenient for subsequent overhaul and maintenance, is a nickel-plated surface treatment mode for the whole exposed metal piece, can resist salt fog for 96 hours, has rated current 16A, has insulation resistance not lower than 5000MΩ, can resist voltage for AC2800V, has contact resistance not higher than 1.3mΩ, has mechanical life capable of meeting 750 plugging, and can be suitable for performance indexes of all electrical connectors for air conditioning systems in the rail transit industry.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. An electric connector special for a rail transit air-conditioning system is composed of a butt-joint plug and a socket, wherein the plug is sequentially composed of a shell, an insulator and a contact body from outside to inside,
the shell adopts a metal shell, the insulator adopts a jack insulator made of reinforced polyphenylene sulfide, the jack insulator is embedded in the shell, the shell is fixed with a connecting nut through a corrugated spring and a positioning clamp spring, and meanwhile, the connecting nut is provided with a wear-resistant pin; the tail part of the shell is directly connected with a detachable cup-shaped pipe, and the wire outlet end of the shell is a straight type wire outlet cable connector with three locking holes;
the socket includes: the square disc shell with the bayonet is provided with a sealing ring at the inner side; the compression force generated by the corresponding compression deformation of the sealing ring and the compression force generated by the compression deformation of the corrugated spring are balanced.
2. The special electric connector for the rail transit air conditioning system according to claim 1, wherein the insulator is combined into a two-body structure, the claw is embedded into the rear insulator, the front insulator and the rear insulator are fixed in an adhesive mode, and the front insulator is sealed by an adhesive interface so as to effectively improve the creepage distance; the rear insulator is adhered to the wire sealing body, so that the waterproof performance and the dustproof performance are effectively improved.
3. The electrical connector for a rail transit air conditioning system according to claim 2, wherein the insulator and the housing cooperate to provide an error proofing function for the installation of different keys by the variation of key slots of the key and the insulator.
4. The electrical connector special for the rail transit air conditioning system according to claim 2 or 3, wherein the insulator and the shell are fixed in a bonding mode, and the bonding glue is J-206 glue;
after the insulator is adhered, the tail part of the insulator is subjected to encapsulation treatment, sealing is realized through silicon rubber, and the protection grade after sealing can reach IP68.
5. The special electric connector for the rail transit air conditioning system according to claim 1, wherein the shell is matched with the connecting nut to realize positioning through the corrugated spring, the friction washer and the positioning clamp spring, and the connecting nut can ensure the butting stability of the plug and the socket under the action of the elastic force of the corrugated spring made of stainless steel and has an anti-falling function;
the corrugated spring and the positioning clamp spring are isolated by the friction washer, so that the smoothness of rotation of the connecting nut can be effectively ensured.
6. The electrical connector for a rail transit air conditioning system of claim 5, wherein the friction washer is configured in a stepped configuration having a function of preventing the positioning clip from being pulled out under force.
7. The electrical connector special for the rail transit air conditioning system according to claim 1, wherein the material of the contact body is tin bronze, the jack reed of the tin bronze is of a hard-wired electrical structure, the jack structure is provided with a protective sleeve, meanwhile, the protective sleeve is integrally formed by stainless steel pipes, and the protective sleeve is fixed with the jack in a four-point extrusion mode.
8. The electrical connector for a rail transit air conditioning system of claim 7, wherein the surface of the contact body is gold plated.
CN202310087233.9A 2023-02-09 2023-02-09 Special electric connector for rail transit air conditioning system Pending CN116053830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310087233.9A CN116053830A (en) 2023-02-09 2023-02-09 Special electric connector for rail transit air conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310087233.9A CN116053830A (en) 2023-02-09 2023-02-09 Special electric connector for rail transit air conditioning system

Publications (1)

Publication Number Publication Date
CN116053830A true CN116053830A (en) 2023-05-02

Family

ID=86131294

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310087233.9A Pending CN116053830A (en) 2023-02-09 2023-02-09 Special electric connector for rail transit air conditioning system

Country Status (1)

Country Link
CN (1) CN116053830A (en)

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