Electrical connector for ejection

Abstract

The present invention discloses an ejection electrical connector, including a plug and a socket, wherein in the plug, the outer wall of the pin seat is connected to the inner wall of the plug housing through a first plug potting body, and the outer wall of the pin is connected to the corresponding hole wall in the pin seat through a second plug potting body; in the socket, an annular boss is provided in the middle of the socket through hole of the socket housing, and an annular boss through hole is provided in the middle of the annular boss, the annular boss divides the socket through hole into a first socket inner cavity and a second socket inner cavity, and the outer wall of the jack column is connected to the hole wall of the socket through hole through a socket plastic sealing body, and the socket plastic sealing body is simultaneously placed in the first socket inner cavity, the second socket inner cavity and the annular boss through hole. The ejection electrical connector of the present invention is small in size, light in weight, and has a stronger anti-impact capability, the socket and the pin can be reused to reduce costs and is environmentally friendly, and the plug and the socket can be reliably and quickly separated.

Description

Technical Field

[0001] The invention relates to an electric connector, in particular to an ejection electric connector which requires rapid separation of a plug and a socket during use. Background Art

[0002] The electrical connector consists of a fixed-end electrical connector, i.e., a socket, and a free-end electrical connector, i.e., a plug. The socket is generally fixed on an electrical component, and the plug is generally connected to a cable. The connection between the plug and the socket is achieved through a connecting nut. The connection methods include threaded connection, bayonet (quick) connection, lock connection, push-pull connection, and direct plug-in connection.

[0003] Traditional electrical connectors generally do not require or have specific anti-impact designs, so the components are often connected together by screwing or snapping, which lacks stability and compactness. However, in certain specific applications, such as the launch of certain fireworks, flares, signal flares, etc. that require electrical control, electrical connectors must have the function of transmitting electrical signals while also having sufficient anti-impact capabilities to ensure that the components of the electrical connector will not be damaged, that the components can be reused to reduce costs and be environmentally friendly, and that the size is as small as possible to be more suitable for installation applications. Traditional electrical connectors cannot meet these requirements. Summary of the invention

[0004] The purpose of the present invention is to provide an electrical connector for ejection with strong impact resistance, reusable components and small size in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An ejection electrical connector, comprising a plug and a socket, the plug comprising a plug housing, a pin and a pin seat, the pin being mounted on the pin seat, the pin seat being mounted in the plug housing, the socket comprising a socket housing and a jack column, the jack column being mounted in the socket housing, a plurality of the pins corresponding to a plurality of the jack columns one by one and the pins being inserted into the corresponding jacks of the jack columns, the plug housing and the socket housing being fittedly connected; in the plug, the outer wall of the pin seat and the inner wall of the plug housing are connected together by a first plug potting body that is cast in situ and solidified, the outer wall of the pin is connected to the pin seat, and the outer wall of the pin is connected to the inner wall of the plug housing. The corresponding hole walls in the seat are connected together by a second plug potting body that is cast in situ and solidified; in the socket, the middle part of the socket through hole of the socket shell is provided with an annular boss that protrudes toward the central axis of the socket through hole, and the middle part of the annular boss is provided with an annular boss through hole, and the annular boss divides the socket through hole into a first socket inner cavity for installing the socket and a second socket inner cavity for connecting the plug, and the outer wall of the jack column and the hole wall of the socket through hole are connected together by a socket plastic sealing body that is cast in situ and solidified, and the socket plastic sealing body is placed in the first socket inner cavity, the second socket inner cavity and the annular boss through hole at the same time. The above-mentioned potting body is a filled sealant, such as epoxy sealant, and the above-mentioned plastic sealing body is a filled liquid plastic such as PEEK (i.e. polyetheretherketone, a special engineering plastic with excellent properties such as high temperature resistance, self-lubrication, easy processing and high mechanical strength), which becomes a high-strength solid engineering plastic after solidification. These are all commonly used insulating packaging materials for electronic equipment.

[0007] Preferably, in order to realize power signal transmission between the socket and the plug and to achieve high-stability installation of various components in the socket, the socket column includes a first electrode socket column and a second electrode socket column, one end of the first electrode socket column is threadedly mounted on a conductive first electrode seat, the first electrode seat is provided with an electrode seat through hole, one end of the second electrode socket column is threadedly mounted on a conductive second electrode seat, the second electrode seats pass through the electrode seat through hole and do not contact each other, a concave ring is provided in the cavity wall of the first socket inner cavity near the annular boss, the socket plastic sealing body is filled between the outer wall of the second electrode seat and the hole wall of the electrode seat through hole, between the outer wall of the first electrode seat and the cavity wall of the first socket inner cavity, between the first electrode socket column and the second electrode socket column, and in the concave ring.

[0008] Preferably, in order to further improve the stability of the components in the socket, serrated grooves or coarse threads are respectively provided on the outer wall of the first electrode seat, the outer wall of the second electrode seat, the cavity wall of the first socket cavity, and the hole wall of the annular boss through hole.

[0009] Preferably, in order to form a detonating cavity in a very small space and transmit the control signal in the plug to the detonating cavity, one end of the plug shell is socketed into one end of the socket shell and the socketing position corresponds to the space of the second socket cavity to form a detonating cavity, and the socket column also includes two detonating socket columns, one end of the detonating socket column is provided with an integrally formed detonating seat, and the detonating seat is placed in the detonating cavity.

[0010] Preferably, in order to ensure that the detonation operation is more reliable, a welding wire groove is provided on the detonation seat, and the position on the detonation seat corresponding to the welding wire groove is pressed against the corresponding cavity wall of the detonation cavity by a pressure plate, and a detonating wire is welded in the welding wire groove. Two symmetrically distributed lead grooves are provided on the edge of the pressure plate, and the two detonating wires pass through the two lead grooves respectively and are placed in the detonation cavity.

[0011] Preferably, in order to achieve a better sealing effect for the detonation cavity and thus achieve a better detonation effect, a first sealing ring is provided between the corresponding end of the plug shell and the corresponding outer wall of the socket shell, and a second sealing ring is provided between the corresponding end of the socket shell and the corresponding inner wall of the plug shell.

[0012] The beneficial effects of the present invention are:

[0013] The present invention fixes various components of the plug by a cast-in-place solidified potting body and fixes various components of the socket by a cast-in-place solidified plastic sealing body, so that the socket and the plug each form a sealed whole, which is more compact, small in size and light in weight than a screw connection and a clamping connection structure, and by arranging an annular boss in the socket shell, the plastic sealing body of the socket and the socket shell, i.e., the related components have higher stability, thereby having a stronger impact resistance, and will not be damaged in a strong impact environment generated when the plug is ejected, and the socket and the pin (especially the socket) can be reused to reduce costs and be beneficial to environmental protection, and the plug and the socket can Reliable and fast separation under high-temperature and high-pressure gas conditions; by threading the two electrode jack columns and the two electrode seats respectively, it is easier to process and assemble than an integrally formed structure, and is also more conducive to miniaturized design; by arranging a concave ring in the inner cavity of the first socket, and filling the socket plastic package in the concave ring and forming a mutual insulation and limiting structure between the components, the socket has a stronger impact resistance; by arranging a welding wire groove on the detonating seat, the detonating wire is cleverly welded to the detonating seat and placed in the detonating cavity while facilitating the limiting fixation of the detonating jack column and the detonating seat, thereby improving the reliability of detonation ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional exploded view of the electrical connector for ejection of the present invention before assembly;

[0015] Figure 2is a sectional front view of the socket housing of the ejection electrical connector of the present invention;

[0016] Figure 3 It is a three-dimensional exploded view of the socket column and related components of the ejection electrical connector of the present invention before assembly;

[0017] Figure 4 is a three-dimensional exploded view of the second electrode plug post and the second electrode seat of the ejection electrical connector of the present invention before assembly;

[0018] Figure 5 is a three-dimensional exploded view of the first electrode plug post and the first electrode seat of the ejection electrical connector of the present invention before assembly;

[0019] Figure 6 It is a three-dimensional diagram of the detonation socket column and the detonation seat of the electrical connector for ejection of the present invention;

[0020] Figure 7 It is a sectional front view of the ejection electrical connector of the present invention after assembly. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings:

[0022] like Figure 1-Figure 7As shown, the ejection electrical connector of the present invention comprises a plug 2 and a socket 1, the plug 2 comprises a plug housing 25, a pin 23 and a pin seat 21, the pin 23 is mounted on the pin seat 21, the pin 23 passes through the corresponding pin through hole 210 on the pin seat 21, the pin seat 21 is mounted in the plug housing 25, the socket 1 comprises a socket housing 10 and a jack column, the middle of the socket through hole of the socket housing 10 is provided with an annular boss 103 protruding toward the central axis of the socket through hole, the middle of the annular boss 103 is provided with an annular boss through hole 104, the annular boss 103 divides the socket through hole into a first socket inner cavity 100 for mounting the socket 1 and a second socket inner cavity 105 for connecting the plug 2, the jack column is mounted on the socket housing 10, the socket column includes a first electrode socket column 1104, a second electrode socket column 1113 and two detonation socket columns 1132, one end of the first electrode socket column 1104 is provided with a first electrode external thread 1103 and is installed on a conductive first electrode seat 1100 through a thread to form a first electrode 110, the first electrode seat 1100 is provided with an electrode seat through hole 1102 and a first electrode screw hole 1101 for connecting with the first electrode socket column 1104, the other end of the first electrode socket column 1104 is provided with a first electrode socket 1105, one end of the second electrode socket column 1113 is provided with a second electrode external thread 1112 and is installed on a conductive second electrode seat 1110 through a thread to form a second electrode 111, and the second electrode The electrode seat 1110 is provided with a second electrode screw hole 1111 for connecting to the second electrode socket column 1113, the second electrode seat 1110 passes through the electrode seat through hole 1102 without contacting each other, the outer wall of the first electrode seat 1100 and the outer wall of the second electrode seat 1110 are respectively provided with coarse threads, one end of the detonating socket column 1132 is provided with an integrally formed detonating seat 1130 to form a detonating conductor 113, the detonating seat 1130 is provided with a welding wire groove 1131, the other end of the detonating socket column 1132 is provided with a detonating socket 1133, the plug housing 25 and the socket housing 10 are fittedly connected, a first adhesive sealing ring 13 is provided between the corresponding end of the plug housing 25 and the corresponding outer wall of the socket housing 10, and the socket housing 10 A second adhesive sealing ring 20 is provided between the corresponding end and the corresponding inner wall of the plug housing 25, and the space of the second socket inner cavity 105 corresponding to the socket connection position of the plug housing 25 and the socket housing 10 forms an initiating inner cavity (not marked in the figure), and the initiating seat 1130 is placed in the initiating inner cavity. The position corresponding to the welding wire groove 1131 on the initiating seat 1130 is pressed against the corresponding cavity wall of the initiating inner cavity by the pressing plate 12, and an initiating wire 3 is welded in the welding wire groove 1131. Two symmetrically distributed lead grooves 120 are provided at the edge of the pressing plate 12, and two initiating wires 3 pass through the two lead grooves 120 respectively and are placed in the initiating inner cavity. A concave ring 102 is provided in the cavity wall of the first socket inner cavity 100 near the annular boss 103.The cavity wall of the first socket inner cavity 100 and the hole wall of the annular boss through hole 104 are respectively provided with toothed grooves (or coarse threads), the outer wall of the first electrode 110, the outer wall of the second electrode 111, the outer wall of the detonating conductor 113 and the hole wall of the corresponding socket through hole are connected together by a cast-in-place solidified socket plastic sealing body 112, the outer wall of the second electrode seat 1110 and the hole wall of the electrode seat through hole 1102, the outer wall of the first electrode seat 1100 and the cavity wall of the first socket inner cavity 100, the first electrode plug hole column 1104 and the second electrode plug hole column 1113, and the concave ring 102 are all filled with the socket plastic sealing body 112, and the socket plastic sealing body 112 is placed at the same time on the first socket In the seat inner cavity 100, the second socket inner cavity 105 and the annular boss through hole 104, the first electrode 110, the second electrode 111, the detonating conductor 113 and the socket plastic sealing body 112 together form a signal transmission component 11; in the plug 2, the outer wall of the pin seat 21 and the inner wall of the plug housing 25 are connected together through the first plug potting body 22 cast in situ, and the outer wall of the pin 23 and the corresponding hole wall in the pin seat 21 are connected together through the second plug potting body 24 cast in situ, and the four pins 23 correspond to the first electrode socket column 1104, the second electrode socket column 1113 and the two detonating socket columns 1132 one by one and are inserted into the sockets of the corresponding socket columns.

[0023] like Figure 1-Figure 7 As shown, when in use, the explosive is filled in the detonation cavity, the socket 1 is installed on the igniter body, the first electrode seat 1100 and the second electrode seat 1110 are respectively connected to the positive and negative electrodes of the power supply, the plug is installed on the jettisoning load, and the connection design with the jettisoning load adopts the printed circuit board welding method; the power supply of the igniter body is transmitted to the circuit board on the jettisoning load through the first electrode 110, the second electrode 111 and the corresponding two pins 23, and the processor on the circuit board transmits the detonation control signal to the two detonation wires 3 through the two detonation conductors 113 and the corresponding two pins 23, so as to detonate the explosive in the detonation cavity, so that the plug 2 is quickly separated from the socket 1, the plug 2 is ejected together with the jettisoning load, and the socket 1 remains motionless; the socket 1 will not be damaged by the impact force due to its special structure, and can continue to be reused, and the plug 2 can also be reused if it can be recovered again.

[0024] Description: If Figure 7 As shown, in order to achieve better stability, a mutually embedded limiting structure is formed between the first plug potting body 22 and the plug housing 25 and the pin seat 21, and a step structure is also provided between the second plug potting body 24 and the pin 23 to limit the pin from being separated from the pin seat; in order to avoid misalignment between corresponding components, straight-edge anti-misalignment structures are provided between the plug housing 25 and the pin seat 21, and between the plug housing 25 and the socket housing 10 respectively; these are conventional structures.

[0025] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. An ejection electrical connector, comprising a plug and a socket, wherein the plug comprises a plug housing, a pin and a pin seat, wherein the pin is mounted on the pin seat, and the pin seat is mounted in the plug housing, wherein the socket comprises a socket housing and a jack column, and the jack column is mounted in the socket housing, wherein a plurality of the pins correspond to a plurality of the jack columns one by one and the pins are inserted into the corresponding jacks of the jack columns, and the plug housing and the socket housing are connected in a sleeve manner; characterized in that: The outer wall of the pin seat and the inner wall of the plug housing are connected together by a first plug potting body that is cast in situ and solidified, and the outer wall of the pin and the corresponding hole wall in the pin seat are connected together by a second plug potting body that is cast in situ and solidified; the middle part of the socket through hole of the socket housing is provided with an annular boss that protrudes toward the central axis of the socket through hole, and the middle part of the annular boss is provided with an annular boss through hole, and the annular boss divides the socket through hole into a first socket inner cavity for installing the socket and a second socket inner cavity for connecting the plug, and the outer wall of the jack column is connected to the The hole walls of the socket through hole are connected together by a cast-in-place solidified socket plastic sealing body, and the socket plastic sealing body is placed in the first socket inner cavity, the second socket inner cavity and the annular boss through hole at the same time; the socket column includes a first electrode socket column and a second electrode socket column, one end of the first electrode socket column is installed on the conductive first electrode seat through a thread, the first electrode seat is provided with an electrode seat through hole, one end of the second electrode socket column is installed on the conductive second electrode seat through a thread, the second electrode seat passes through the electrode seat through hole and does not contact each other, the first socket inner cavity A concave ring is provided in the cavity wall near the annular boss, and the socket plastic sealing body is filled between the outer wall of the second electrode seat and the hole wall of the electrode seat through hole, between the outer wall of the first electrode seat and the cavity wall of the first socket cavity, between the first electrode socket column and the second electrode socket column, and in the concave ring; one end of the plug shell is sleeved on one end of the socket shell and the space of the second socket cavity corresponding to the sleeve position forms an detonating cavity, the socket column also includes two detonating socket columns, and one end of the detonating socket column is provided with an integrally formed detonating seat, The detonating seat is placed in the detonating inner cavity; a welding wire groove is provided on the detonating seat, and the position on the detonating seat corresponding to the welding wire groove is pressed against the corresponding cavity wall of the detonating inner cavity by a pressing plate, and a detonating wire is welded in the welding wire groove, and two symmetrically distributed lead grooves are provided on the edge of the pressing plate, and the two detonating wires pass through the two lead grooves respectively and are placed in the detonating inner cavity; a first sealing ring is provided between the corresponding end of the plug shell and the corresponding outer wall of the socket shell, and a second sealing ring is provided between the corresponding end of the socket shell and the corresponding inner wall of the plug shell.

2. The ejection electrical connector according to claim 1, characterized in that: Tooth-shaped grooves are respectively provided on the outer wall of the first electrode seat, the outer wall of the second electrode seat, the cavity wall of the inner cavity of the first socket, and the hole wall of the annular boss through hole.

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