CN113410711B - Short-circuit prevention interface of field operation multimode power converter - Google Patents
Short-circuit prevention interface of field operation multimode power converter Download PDFInfo
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- CN113410711B CN113410711B CN202110651931.8A CN202110651931A CN113410711B CN 113410711 B CN113410711 B CN 113410711B CN 202110651931 A CN202110651931 A CN 202110651931A CN 113410711 B CN113410711 B CN 113410711B
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- sliding sleeve
- short circuit
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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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
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Abstract
The invention discloses a short circuit prevention interface of a field multimode power converter, which comprises a short circuit prevention male interface and a short circuit prevention female interface, wherein a plurality of contact pins are arranged in the short circuit prevention male interface, a plurality of blind holes are arranged at one end of the short circuit prevention female interface, a conductive sliding sleeve, an elastic mechanism and an elastic contact are arranged in the blind holes, the conductive sliding sleeve is arranged in the blind holes in a sliding manner, an insertion hole matched with the contact pins is formed in the end part of one end of the conductive sliding sleeve, the elastic contact is fixed at the bottom of the blind holes, and the other end of the conductive sliding sleeve is arranged on the elastic mechanism. According to the invention, through the unique female interface structural design, the conductive sheath in the female interface is not communicated with the internal components of the power converter under the condition that the male interface is not inserted into the female interface, and only when the male interface is inserted into the female interface and is inserted in place, the conductive sheath in the female interface is communicated with the internal conductive elastic sheet so as to be communicated with the internal components of the power converter, so that the short circuit problem in the interface plugging and unplugging process is effectively avoided.
Description
Technical Field
The invention relates to a short-circuit prevention interface, in particular to a short-circuit prevention interface of a field operation multimode power converter, and belongs to the field of multimode power.
Background
The multi-mode power converter system is used for guaranteeing power supply of the serial-level units under the camping condition. The multi-mode power converter system can adapt to the input of various environmental power supplies, including commercial power, vehicle-mounted direct current, a storage battery, a generator, even a telephone line power supply and the like. The function is to invert direct current and non-standard alternating current into single-phase power frequency alternating current, and provide emergency power supply support for important equipment in wartime; and the centralized batch charging and low-temperature charging guarantee is provided for various batteries of handheld, portable and other equipment for communication, command, observation, reconnaissance and the like.
Military multimode power converters often have extremely high requirements on the safety of the power converter, since they are required to cope with the severe conditions of all weather and all terrain. Although the interface part of the multimode power converter is provided with the waterproof and dustproof sheath, the sheath needs to be taken down in the use process, and under severe weather such as heavy rain, rainwater and the like can still enter the interface in the process of plugging and unplugging the interface, so that the problem of internal short circuit of the power converter is caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a short-circuit prevention interface of a field operation multimode power converter, and solve the problem of rainwater short circuit of the interface of the multimode power converter.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a field operations multimode power converter's short circuit prevention interface which characterized in that: contain and prevent the public interface of short circuit and prevent the female interface of short circuit, prevent being provided with a plurality of contact pin in the public interface of short circuit, the one end of preventing the female interface of short circuit is provided with a plurality of blind hole, is provided with electrically conductive sliding sleeve, elastic mechanism and elastic contact in the blind hole, electrically conductive sliding sleeve slides and sets up in the blind hole and the one end tip of electrically conductive sliding sleeve opens the jack that has the pin matching, elastic contact fixes the bottom at the blind hole, the electrically conductive sliding sleeve other end sets up on elastic mechanism.
Further, prevent female interface of short circuit contains interface body and outside curb plate, and outside curb plate perpendicular to interface body side sets up and open on the outside curb plate has a plurality of screw.
Furthermore, a groove matched with the interface body of the short-circuit-preventing female interface is formed in the end face of one end of the short-circuit-preventing male interface, a plurality of contact pins are fixedly arranged in the groove, and the short-circuit-preventing male interface is sleeved outside one end of the interface body of the short-circuit-preventing female interface through the groove.
Furthermore, the conductive sliding sleeve is provided with a plurality of elastic sheets on the inner wall of the jack, the elastic sheets protrude towards the axis direction of the jack of the conductive sliding sleeve, and the elastic sheets are distributed on the inner wall of the jack at equal intervals along the circumferential direction of the jack.
Furthermore, a plurality of sealing ring grooves are formed in the outer side wall of the conductive sliding sleeve, the sealing ring grooves are distributed along the axial direction of the conductive sliding sleeve, and a sealing ring is arranged in each sealing ring groove.
Further, the conductive sliding sleeve is composed of a thick sheath part and a thin contact part, one end of the thin contact part is connected with one end of the thick sheath part, the jack is arranged at the other end of the thick sheath part, and the other end of the thin contact part is arranged to be a spherical contact.
Furthermore, elastic mechanism contains insulating sheath and spring, and insulating sheath is hollow pipe and insulating sheath cover establishes the outside at the thin contact head part of electrically conductive sliding sleeve, and insulating sheath's one end tip is provided with the bellied bulge loop in the outside, and a pot head of spring establishes in insulating sheath's the outside and spring one end tip and bulge loop contact location, and the other end setting of spring is in the blind hole bottom.
Furthermore, the elastic contact comprises a contact blade, a connecting sheet and a connecting terminal, the contact blade is perpendicular to the axial direction of the blind hole and fixed at the bottom of the blind hole, the connecting terminal is vertically fixed on the end face of the other end of the short-circuit-proof female connector, and one side of the contact blade is fixedly connected with the connecting terminal through the connecting sheet.
Furthermore, a through hole is formed in the center of the contact blade, a plurality of inclined spring pieces are arranged on the inner side of the through hole, the inclined spring pieces are distributed at equal intervals along the circumferential direction of the through hole, and the inclined spring pieces are arranged obliquely to the plane of the contact blade.
Further, the contact blade, the connecting sheet and the connecting terminal are integrally formed.
Compared with the prior art, the invention has the following advantages and effects: according to the short circuit prevention interface of the field multimode power converter, through the unique female interface structure design, the conductive sheath in the female interface is not communicated with the internal components of the power converter under the condition that the male interface is not inserted into the female interface, and only when the male interface is inserted into the female interface and is inserted in place, the conductive sheath in the female interface is communicated with the internal conductive elastic sheet so as to be communicated with the internal components of the power converter, so that the short circuit problem in the interface plugging and unplugging process is effectively avoided.
Drawings
Fig. 1 is a schematic diagram of an anti-short circuit interface of a field multimode power converter according to the invention.
Fig. 2 is an internal schematic diagram of an anti-short circuit interface of a field multimode power converter according to the invention.
Fig. 3 is a partial schematic view of the short-circuit prevention female interface of the present invention.
Fig. 4 is a schematic view of a spring contact of the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1 and 2, the short circuit prevention interface of the field multimode power converter of the invention comprises a short circuit prevention male interface 1 and a short circuit prevention female interface 2, wherein a plurality of contact pins 3 are arranged in the short circuit prevention male interface 1, a plurality of blind holes 4 are arranged at one end of the short circuit prevention female interface 2, a conductive sliding sleeve 5, an elastic mechanism 6 and an elastic contact 7 are arranged in the blind holes 4, the conductive sliding sleeve 5 is arranged in the blind holes 4 in a sliding manner, a jack 8 matched with the contact pin 3 is arranged at one end of the conductive sliding sleeve 5, the elastic contact 7 is fixed at the bottom of the blind hole 4, and the other end of the conductive sliding sleeve 5 is arranged on the elastic mechanism 6. When the short-circuit prevention male connector 1 is not inserted into the short-circuit prevention female connector 2, the conductive sliding sleeve 5 is positioned at the top of the blind hole 4 under the action of the elastic mechanism 6, at the moment, the conductive sliding sleeve 5 is not in contact with the elastic contact 7, even if water enters the conductive sliding sleeve 5 at the outer side of the short-circuit prevention female connector 2 to form a short-circuit state on a circuit, the short circuit of an internal element of the power converter cannot be caused because the conductive sliding sleeve 5 is not communicated with the internal element of the power converter, and the short-circuit risk during the plugging and unplugging of the connectors in severe weather is effectively solved.
Prevent female interface 2 of short circuit and contain interface body 9 and outside curb plate 10, outside curb plate 10 perpendicular to interface body 9 side sets up and open on the outside curb plate 10 and have a plurality of screw. The outer side plate 10 is fixed on the housing of the field multimode power converter through bolt locking, and a waterproof gasket is arranged between the outer side plate 10 and the housing of the power converter to increase the waterproof performance. The end face of one end of the short-circuit-proof male interface 1 is provided with a groove 11 matched with the interface body 9 of the short-circuit-proof female interface 2, the plurality of contact pins 3 are fixedly arranged in the groove 11, and the short-circuit-proof male interface 1 is sleeved outside one end of the interface body 9 of the short-circuit-proof female interface 2 through the groove 11.
As shown in fig. 3, the conductive sliding sleeve 5 is provided with a plurality of elastic pieces 12 on the inner wall of the insertion hole 8, the elastic pieces 12 protrude toward the axial direction of the insertion hole 8 of the conductive sliding sleeve 5, and the plurality of elastic pieces 12 are distributed on the inner wall of the insertion hole 8 at equal intervals along the circumferential direction of the insertion hole 8. Through the design of shell fragment 12, can guarantee that pin 3 of preventing short circuit male interface 11 can realize good effective contact with the electrically conductive sliding sleeve 5 of preventing short circuit female interface 2. The outer side wall of the conductive sliding sleeve 5 is provided with a plurality of sealing ring grooves 13, the sealing ring grooves 13 are distributed along the axial direction of the conductive sliding sleeve 5, a sealing ring is arranged in each sealing ring groove 13, the waterproof performance between the conductive sliding sleeve 5 and the inner wall of the blind hole 4 is guaranteed through the sealing rings arranged in multiple layers, and external rainwater and the like are prevented from permeating into the anti-short-circuit female connector 1.
The conductive sliding bush 5 is constituted by a thick sheath portion 14 and a thin contact head portion 15, one end of the thin contact head portion 15 is connected to one end of the thick sheath portion 14 and the conductive sliding bush 5 is integrally formed, the insertion hole 8 is provided at the other end of the thick sheath portion 14, and the other end of the thin contact head portion 15 is provided as a ball contact.
The elastic mechanism 6 comprises an insulating sheath 16 and a spring 17, the insulating sheath 16 is a hollow round tube, the insulating sheath 16 is sleeved on the outer side of the thin contact head part 15 of the conductive sliding sleeve 5, a convex ring 18 protruding towards the outer side is arranged at one end part of the insulating sheath 16, one end part of the spring 17 is sleeved on the outer side of the insulating sheath 16, one end part of the spring 17 is in contact positioning with the convex ring 18, and the other end of the spring 17 is arranged at the bottom of the blind hole 4.
As shown in fig. 3 and 4, the elastic contact 7 includes a contact blade 19, a connecting piece 20 and a connecting terminal 21, the contact blade 19 is arranged perpendicular to the axial direction of the blind hole 4 and the contact blade 19 is fixed at the bottom of the blind hole 4, the connecting terminal 21 is vertically fixed on the other end face of the short-circuit prevention female connector 2, and one side of the contact blade 19 is fixedly connected with the connecting terminal 21 through the connecting piece 20. The wiring terminal is connected with the internal element of the power converter through a lead. A through hole is formed in the center of the contact blade 19, a plurality of inclined spring pieces 22 are arranged on the inner side of the through hole, the inclined spring pieces 22 are distributed at equal intervals along the circumferential direction of the through hole, and the inclined spring pieces 22 are arranged obliquely to the plane of the contact blade. The contact blade, the connecting sheet and the connecting terminal are integrally formed. When the short-circuit prevention male interface 1 is inserted into the short-circuit prevention female interface 2, the contact pin 3 is inserted into the jack 8, and the length of the jack 8 is smaller than that of the contact pin 3, so that when the contact pin 3 is inserted into the bottom of the jack 8, the contact pin is continuously inserted to drive the conductive sliding sleeve 5 to slide towards the elastic contact 7 until the spherical contact of the conductive sliding sleeve 5 is completely contacted with the inclined elastic sheet 22 in the through hole of the elastic contact 7, and the contact is communicated with an element inside the power converter.
According to the short circuit prevention interface of the field multimode power converter, through the unique female interface structure design, the conductive sheath in the female interface is not communicated with the internal components of the power converter under the condition that the male interface is not inserted into the female interface, and only when the male interface is inserted into the female interface and is inserted in place, the conductive sheath in the female interface is communicated with the internal conductive elastic sheet so as to be communicated with the internal components of the power converter, so that the short circuit problem in the interface plugging and unplugging process is effectively avoided.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a field operations multimode power converter's short circuit prevention interface which characterized in that: the anti-short circuit connector comprises an anti-short circuit male connector and an anti-short circuit female connector, wherein a plurality of contact pins are arranged in the anti-short circuit male connector, a plurality of blind holes are formed in one end of the anti-short circuit female connector, a conductive sliding sleeve, an elastic mechanism and an elastic contact are arranged in the blind holes, the conductive sliding sleeve is arranged in the blind holes in a sliding mode, a jack matched with the contact pins is formed in one end portion of the conductive sliding sleeve, the elastic contact is fixed at the bottom of the blind holes, and the other end of the conductive sliding sleeve is arranged on the elastic mechanism; the short-circuit preventing male interface is sleeved outside one end of the interface body of the short-circuit preventing female interface through the groove; the conductive sliding sleeve is provided with a plurality of elastic sheets on the inner wall of the jack, the elastic sheets protrude towards the axis direction of the jack of the conductive sliding sleeve, and the elastic sheets are distributed on the inner wall of the jack at equal intervals along the circumferential direction of the jack; the conductive sliding sleeve is composed of a thick sheath part and a thin contact part, one end of the thin contact part is connected with one end of the thick sheath part, the jack is arranged at the other end of the thick sheath part, and the other end of the thin contact part is provided with a spherical contact; the elastic mechanism comprises an insulating sheath and a spring, the insulating sheath is a hollow round tube and is sleeved on the outer side of the thin contact head part of the conductive sliding sleeve, a convex ring protruding outwards is arranged at one end of the insulating sheath, one end of the spring is sleeved on the outer side of the insulating sheath, one end of the spring is in contact positioning with the convex ring, and the other end of the spring is arranged at the bottom of the blind hole; the elastic contact comprises a contact blade, a connecting sheet and a connecting terminal, the contact blade is perpendicular to the axial direction of the blind hole and is fixed at the bottom of the blind hole, the connecting terminal is vertically fixed on the end face of the other end of the short-circuit prevention female connector, and one side of the contact blade is fixedly connected with the connecting terminal through the connecting sheet; the contact piece is characterized in that a through hole is formed in the center of the contact piece, a plurality of inclined spring pieces are arranged on the inner side of the through hole, the inclined spring pieces are distributed at equal intervals along the circumferential direction of the through hole, and the inclined spring pieces are inclined to the plane of the contact piece.
2. The anti-short circuit interface of a field multimode power converter as claimed in claim 1, wherein: prevent female interface of short circuit and contain interface body and outside curb plate, outside curb plate perpendicular to interface body side sets up and open on the outside curb plate has a plurality of screw.
3. The anti-short circuit interface of a field multimode power converter according to claim 1, characterized in that: the outer side wall of the conductive sliding sleeve is provided with a plurality of sealing ring grooves which are distributed along the axial direction of the conductive sliding sleeve, and a sealing ring is arranged in each sealing ring groove.
4. The anti-short circuit interface of a field multimode power converter as claimed in claim 1, wherein: the contact blade, the connecting sheet and the connecting terminal are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651931.8A CN113410711B (en) | 2021-06-11 | 2021-06-11 | Short-circuit prevention interface of field operation multimode power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651931.8A CN113410711B (en) | 2021-06-11 | 2021-06-11 | Short-circuit prevention interface of field operation multimode power converter |
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| Publication Number | Publication Date |
|---|---|
| CN113410711A CN113410711A (en) | 2021-09-17 |
| CN113410711B true CN113410711B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110651931.8A Active CN113410711B (en) | 2021-06-11 | 2021-06-11 | Short-circuit prevention interface of field operation multimode power converter |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655820A (en) * | 2015-12-31 | 2016-06-08 | 北京康祝医疗器械有限公司 | Anti-electric shock safety socket assembly |
| CN110676649A (en) * | 2019-09-29 | 2020-01-10 | 中航光电科技股份有限公司 | Falling connector |
| CN113113812A (en) * | 2021-03-03 | 2021-07-13 | 赵莎莎 | Safety anti-loosening socket |
-
2021
- 2021-06-11 CN CN202110651931.8A patent/CN113410711B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655820A (en) * | 2015-12-31 | 2016-06-08 | 北京康祝医疗器械有限公司 | Anti-electric shock safety socket assembly |
| CN110676649A (en) * | 2019-09-29 | 2020-01-10 | 中航光电科技股份有限公司 | Falling connector |
| CN113113812A (en) * | 2021-03-03 | 2021-07-13 | 赵莎莎 | Safety anti-loosening socket |
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| CN113410711A (en) | 2021-09-17 |
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