CN113140939A - Compact electric connector for initiating explosive device of space electric appliance device - Google Patents

Compact electric connector for initiating explosive device of space electric appliance device Download PDF

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Publication number
CN113140939A
CN113140939A CN202110526678.3A CN202110526678A CN113140939A CN 113140939 A CN113140939 A CN 113140939A CN 202110526678 A CN202110526678 A CN 202110526678A CN 113140939 A CN113140939 A CN 113140939A
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CN
China
Prior art keywords
plug
shell
lock catch
wedge
catch rod
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Pending
Application number
CN202110526678.3A
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Chinese (zh)
Inventor
周莉明
蔡昭文
王俊龙
曾庆国
粟子叶
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G & A Technologies Co ltd
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G & A Technologies Co ltd
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Publication date
Application filed by G & A Technologies Co ltd filed Critical G & A Technologies Co ltd
Priority to CN202110526678.3A priority Critical patent/CN113140939A/en
Publication of CN113140939A publication Critical patent/CN113140939A/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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • 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
    • H01R13/502—Bases; Cases composed of different pieces
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention discloses a compact electric connector of an initiating explosive device of a space electric appliance device, which comprises a plug assembly and a signal socket assembly which are connected in a plug-in mode, wherein the plug assembly comprises a shell I made of a plastic material, a plug is arranged at the front end of the shell I, the signal socket assembly comprises a shell II, and a jack seat matched with the plug is arranged on the rear end face of the shell II; the casing I is connected with a lock catch rod which is cantilevered forwards, a wedge-shaped clamping head which is small in front and large in back is arranged on the rear end body of the casing II, when the plug is plugged into the jack seat, the wedge-shaped clamping head expands the lock catch rod to enable the lock catch rod to be elastically deformed, and when the plug is plugged into the jack seat, the lock catch rod elastically returns to be buckled on the wedge-shaped clamping head to lock the plugging position, and the contact I arranged in the casing I is connected with the contact II arranged in the casing II to switch on the plug assembly and the signal socket assembly. The invention integrates the insertion and locking, self-locking after the insertion, saves the locking part, has more compact structure, and ensures the performance of the locking structure by the performance of the structure and the material.

Description

Compact electric connector for initiating explosive device of space electric appliance device
Technical Field
The invention relates to an electrical appliance connecting device, in particular to a compact electrical connector for an initiating explosive device of a space electrical appliance device.
Background
The space electric appliance device is a device which is loaded on a space platform and executes space special tasks in time. When the product works, various initiating explosive devices are activated through a controller in the device, so that various functions and performance requirements such as unlocking, unfolding, separating, igniting and propelling are met.
Due to the load capacity limitation of the space platform, the space electrical apparatus must be required to meet the requirements of miniaturization and light weight. Therefore, the conventional electric connector is used for connecting an electric appliance between the initiating explosive device and the controller in the product and is difficult to meet the use requirement, if the electric connector is cancelled and the design of wire welding is directly adopted, the potential safety hazard of welding with the explosive can exist, and meanwhile, the potential safety hazard of accidental activation of the initiating explosive device also exists in the electrified test of the welded product.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a compact electric connector for an initiating explosive device of a space electric device.
The technical scheme of the compact electric connector for the initiating explosive device of the space electric device comprises a plug assembly and a signal socket assembly which are connected in a plug-in mode, wherein the difference is that the plug assembly comprises a shell I made of a plastic material, a plug is arranged at the front end of the shell I, the signal socket assembly comprises a shell II, and a jack seat matched with the plug is arranged on the rear end face of the shell II; the plug is characterized in that a lock catch rod which is cantilevered forwards is connected onto the shell I, a wedge-shaped clamping head which is small in front and large in back is arranged on the rear end body of the shell II, when the plug is plugged into the jack seat, the wedge-shaped clamping head expands the lock catch rod to enable the lock catch rod to deform elastically, when the plug is plugged into the jack seat, the lock catch rod elastically returns to be buckled on the wedge-shaped clamping head to lock the plugging position, and in the plugging position, the contact I arranged in the shell I is connected with the contact II arranged in the shell II, so that the plug component and the signal socket component are switched on through a cable.
For convenient unblock, the hasp pole extends backward and forms the unblock pole of reverse overhang, presses the unblock pole downwards and makes the hasp pole upwarp and break away from the wedge dop, and the plug separates with the jack seat.
The invention has the beneficial effects that:
1. in the structure of the compact electric connector of the initiating explosive device of the space electric device, the plug-in structure and the locking structure are designed to be integrated in order to ensure small and exquisite appearance size and skillfully, self-locking can be realized after the plug assembly and the signal socket assembly are plugged, the structure of the electric connector is more compact due to the simplification of a mechanical locking part, and the performance of the locking structure is ensured by the performance of the structure and materials.
2. The invention realizes the automatic locking function of the locking structure through reasonable material selection and structural design and through the plastic property of the material.
3. The invention has compact integral structure design, meets the requirements of small size and light weight of products, and ensures the reliability and firm locking of the connection of the electric appliance between the initiating explosive device and the controller.
4. The invention realizes the integrated structure of the locking structure, the shell and the contact element through the reasonable structural design of the shell component.
5. The invention can be made very small due to the optimized structure, and can be made into the electric connector product of the initiating explosive device with the smallest external dimension in China, and China and the lightest weight.
Drawings
FIG. 1 is a schematic structural view of one embodiment of the present invention showing a plug assembly plugged into place and locked with a signal receptacle assembly.
FIG. 2 is a schematic structural view of the plug assembly of the embodiment of FIG. 1.
Fig. 3 is a schematic structural diagram of a signal jack assembly in the embodiment of fig. 1.
FIG. 4 is a schematic diagram of the embodiment of FIG. 1 prior to mating of the plug assembly and the signal receptacle assembly.
Fig. 5 is a schematic view illustrating the amount of elastic deformation of the front end of the locking bar during the insertion process of the plug assembly and the signal receptacle assembly in the embodiment of fig. 1.
Fig. 6 is a schematic view of the embodiment of fig. 1, after the plug assembly and the signal socket assembly are locked in place by being plugged, and then the unlocking rod is pressed to unlock.
FIG. 7 is a view of the embodiment of FIG. 1 with the latch mechanism unlocked and the plug assembly removed from the signal jack assembly.
And (3) identifying the figure number: 1. a plug assembly; 1-1, a shell I; 1-2, a plug; 2. a signal receptacle assembly; 2-1, a shell II; 2-2, a jack seat; 3. a lock catch lever; 4. a wedge-shaped chuck; 5. a contact element I; 6. a contact member II; 7. an unlocking lever; 8. and a support body.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The invention relates to a compact electric connector of an initiating explosive device of a space electric device, which comprises a plug component 1 and a signal socket component 2, wherein when the space electric device executes a space task, a controller automatically locks after the plug component 1 and the signal socket component 2 are inserted in place, so that the transmission of a control signal is realized, as shown in figure 1.
The plug assembly 1 comprises a shell I1-1 made of plastic materials, the front end of the shell I1-1 is a conjoined plug 1-2, and a contact I5 (provided with a cable in a crimping mode) which is fixed by an adhesive and is arranged in the plug 1-2 and the shell I1-1 is led out from the rear end of the shell I1-1; the improved plug is characterized in that a lock catch unlocking rod is arranged above the front portion of the shell I1-1 and connected to the shell I1-1 through a support body 8 below the middle portion of the shell I1-1, the support body 8, the lock catch unlocking rod and the shell I1-1 are of an integrated structure formed by injection molding, the support body 8 serves as a fulcrum, a forward overhanging section of the lock catch unlocking rod serves as a lock catch rod 3, a downward hook is arranged at the front end of the lock catch rod 3 and located at the middle front portion of the plug 1-2, a backward overhanging section of the lock catch unlocking rod serves as an unlocking rod 7, and the unlocking rod 7 is located at the middle rear portion of the shell I1-1 and is shown in figure 2.
The signal socket assembly 2 comprises a shell II 2-1, a coaxial jack seat 2-2 is inwards arranged on the rear end face of the shell II 2-1, the inner diameter of the jack seat 2-2 is matched with the outer diameter of the plug 1-2, a contact element II 6 (provided with a cable in a crimping mode) which is fixed by an adhesive and is arranged in the jack seat 2-2 extends out of the front end of the shell II 2-1, a coaxial wedge-shaped chuck 4 is connected onto the rear end body of the shell II 2-1 in a connecting mode, and the front end of the wedge-shaped chuck 4 is small while the rear end of the wedge-shaped chuck 4 is large, as shown in figure 3.
As shown in fig. 4, which is a schematic diagram before the plug component 1 and the signal socket component 2 are inserted into each other, the front end of the plug 1-2 is inserted into the rear end of the jack socket 2-2 in a section of process, and the hook at the front end of the locking rod 3 is in contact with the small end of the wedge-shaped chuck 4.
The front end of the plug 1-2 is further inserted into the jack seat 2-2, the front end hook of the lock catch rod 3 slides to the big end along the inclined plane of the wedge-shaped chuck 4, and in the inserting process, the front end hook of the wedge-shaped chuck 4 elastically deforms and gradually expands, as shown in fig. 5.
When the elastic deformation F1 of the front hook of the wedge chuck 4 is greater than the height of the large head of the wedge chuck 4, the front hook of the wedge chuck 4 elastically returns to hook on the rear end of the wedge chuck 4, the position at this time is the insertion in-place position, the front end face of the shell I1-1 is abutted against the rear end face of the shell II 2-1, the contact I5 in the shell I1-1 is connected with the contact II 6 in the shell II 2-1, the plug component 1 is conducted with the signal socket component 2, and a signal is transmitted inside the space device to activate the initiating explosive device, so that various functions and performance requirements such as unlocking, unfolding, separating, igniting, propelling and the like are completed, as shown in FIG. 1.
When the plug assembly 1 and the signal receptacle assembly 2 are separated, the rear end of the unlocking rod 7 is pressed to tilt the front end hook of the locking rod 3, and when the tilting amount, that is, the deformation of the front end hook of the locking rod 3 reaches F1 (which is greater than the height of the large head end of the wedge-shaped chuck 4), the plug assembly 1 can be pulled out from the signal receptacle assembly 2 to disconnect the transmission of the control signal, as shown in fig. 6 and 7.
In the invention, the elasticity of the lock catch rod 3 as a locking mechanism is ensured by completely depending on the cantilever structure and the performance of materials, and the locking strength accounting formula of the lock catch rod 3 is as follows:
Figure BDA0003065762330000031
wherein:
σ is the stress (kgf/mm square) at which the maximum deformation amount F1 (see fig. 5) occurs at the front end of the locking lever 3.
h is the thickness (mm) of the catch lever 3.
E is the elastic modulus (gpa) of the plastic material.
L is the cantilever length (mm) of the catch lever 3.
F1 is the maximum deformation (mm) of the front end hook of the locking lever 3.
Substituting the corresponding parameters into the formula to calculate the maximum deformation F1 of the front end hook of the lock catch rod 3 during the insertion and the unlocking, and whether the generated stress sigma is smaller than the allowable stress sigma of the plastic material of the lock catch rod 3Allowable use. If the stress sigma is smaller than the stress sigmaAllowable useAnd the size design of the locking rod 3 is reasonable, and the strength of the locking mechanism is reliable.
When the lock catch rod 3 fails to unlock, the minimum working deformation of the front hook is F2 (shown in fig. 6), and the maximum impact acceleration that the lock catch rod 3 can bear is F2
Figure BDA0003065762330000041
Wherein:
b is the width (mm) of the catch lever 3.
h is the thickness (mm) of the catch lever 3.
E is the elastic modulus (3-4) GPa of the material of the lock catch rod 3.
L is the cantilever length (mm) of the catch lever 3.
F2 is the minimum deformation (mm) of the front hook of the locking lever 3 when the working unlocking fails.
ρ is the material density (g/cm) of the catch lever 33)。
Corresponding parameters are substituted into a formula to obtain unlocking failure of the locking structure, the front end of the lock catch rod 3 is hooked with the acceleration a obtained by the minimum deformation, and if the acceleration a is larger than the acceleration index borne during the product environment test, the design structure of the locking mechanism meets the requirement of the product environment acceleration.
The connector can meet the requirements of small size and light weight (only equivalent to the mass and the size of two square wires with the cross section of 0.15mm for welding and the position of the outer sleeve heat-shrinkable tube, namely the weight is less than or equal to 2g, and the external dimension is less than or equal to 2mm multiplied by 4.2mm multiplied by 10mm) through the structural design, and simultaneously ensure the reliable electrical connection and the firm locking between the initiating explosive device and the controller.

Claims (2)

1. Space electrical installation initiating explosive device compact electric connector, plug subassembly (1) and signal socket subassembly (2) including cartridge connection, its characterized in that: the plug assembly (1) comprises a shell I (1-1) made of a plastic material, a plug (1-2) is arranged at the front end of the shell I (1-1), the signal socket assembly (2) comprises a shell II (2-1), and a jack seat (2-2) matched with the plug (1-2) is inwards arranged on the rear end face of the shell II (2-1); the plug is characterized in that a lock catch rod (3) which overhangs forwards is connected onto the shell I (1-1), a wedge-shaped clamping head (4) which is small in front and large in back is arranged on the rear end body of the shell II (2-1), when the plug (1-2) is plugged into the jack seat (2-2), the wedge-shaped clamping head (4) expands the lock catch rod (3) to enable the lock catch rod to deform elastically, when the plug is plugged into place, the lock catch rod (3) elastically returns to the original position and is clamped on the wedge-shaped clamping head (4) to lock the plugging position, and in the plugging position, a contact element I (5) which is arranged in the shell I (1-1) is connected with a contact element II (6) which is arranged in the shell II (2-1) in a connecting mode, and the plug component (1) and the signal socket component (2) are conducted through cables.
2. The compact electrical connector for a space electrical apparatus initiating explosive device according to claim 1, wherein: the locking catch rod (3) extends backwards to form a reverse-overhanging unlocking rod (7).
CN202110526678.3A 2021-05-14 2021-05-14 Compact electric connector for initiating explosive device of space electric appliance device Pending CN113140939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110526678.3A CN113140939A (en) 2021-05-14 2021-05-14 Compact electric connector for initiating explosive device of space electric appliance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110526678.3A CN113140939A (en) 2021-05-14 2021-05-14 Compact electric connector for initiating explosive device of space electric appliance device

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CN113140939A true CN113140939A (en) 2021-07-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114010972A (en) * 2021-09-27 2022-02-08 国网江苏省电力有限公司盐城供电分公司 Portable high altitude electric wire netting overhauls uses anti-falling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114010972A (en) * 2021-09-27 2022-02-08 国网江苏省电力有限公司盐城供电分公司 Portable high altitude electric wire netting overhauls uses anti-falling device

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