阅读说明：本技术 一种带有双向接触功能的电连接器 (Electric connector with bidirectional contact function ) 是由 马晨波 黄微波 舒畅 马超 于 2021-09-10 设计创作，主要内容包括：本发明提供了一种带有双向接触功能的电连接器,包括：接触机构,其两端均用于与导线焊接；安装座,用于安装接触机构且接触机构与安装座之间密封；外连机构,与安装座连接且将接触机构密封在安装座内；其中,当外连机构插入安装座后旋转后与安装座完成连接并对外连机构内与接触机构焊接的导线进行锁止。本发明通过接触机构的设置摒除传统的一座一插的方式,不需要两个电连接器,节约了成本,安装座和外连机构将接触机构间密封在中间,增加其密封性。通过外连机构插入安装座旋转后锁止,进而完成外连机构与安装座间的连接,便利性大大提高。(The invention provides an electric connector with a bidirectional contact function, which comprises: the two ends of the contact mechanism are used for being welded with the lead; the mounting seat is used for mounting the contact mechanism, and the contact mechanism and the mounting seat are sealed; the external connection mechanism is connected with the mounting seat and seals the contact mechanism in the mounting seat; after the external connection mechanism is inserted into the mounting seat, the external connection mechanism is rotated and then connected with the mounting seat, and a lead welded with the contact mechanism in the external connection mechanism is locked. The invention eliminates the traditional one-seat one-plug mode by arranging the contact mechanism, does not need two electric connectors, saves the cost, and increases the sealing property by sealing the contact mechanism in the middle by the mounting seat and the external connection mechanism. The outer mechanism is inserted into the mounting seat to be locked after rotation, and then the outer mechanism and the mounting seat are connected, so that convenience is greatly improved.)

1. An electrical connector with a bidirectional contact function, comprising:

the two ends of the contact mechanism are used for being welded with the lead;

the mounting seat is used for mounting the contact mechanism, and the contact mechanism and the mounting seat are sealed;

the external connection mechanism is connected with the mounting seat and seals the contact mechanism in the mounting seat;

after the external connection mechanism is inserted into the mounting seat, the external connection mechanism is rotated and then connected with the mounting seat, and a lead welded with the contact mechanism in the external connection mechanism is locked.

2. An electrical connector with a bidirectional contact function as set forth in claim 1,

the contact mechanism comprises two conductive metal rods and a glass cake sintered in the middle of the two metal rods;

the mounting seat comprises a placing hole formed in the end part of the mounting seat and a wire passing channel formed in the bottom of the placing hole; one end of each metal rod is positioned in the wire passing channel.

3. An electrical connector with a bidirectional contact function as set forth in claim 2, wherein the two metal bars are flat at their middle portions and provided with an annular groove along their circumferential direction.

4. An electrical connector with a bidirectional contact function as set forth in claim 3, further comprising a gasket coaxial with the seating hole; two end faces of the gasket are respectively abutted against the bottom of the placing hole and the glass cake; the gasket and one side of the glass cake back to the bottom of the placing hole are respectively propped against the external connecting mechanism.

5. An electrical connector with two-way contact function as claimed in claim 4, wherein the external connection mechanism comprises a link sleeve; the linkage sleeve is sleeved outside the glass cake; one end of the linkage sleeve is externally connected with a transition ring; the transition ring is abutted against the gasket; the transition ring is connected with a limit ring extending along the axial direction of the transition ring; the gasket is located in the spacing ring.

6. The electrical connector with bidirectional contact function as set forth in claim 5, wherein the external connection mechanism further comprises an external connection sleeve and an internal connection sleeve; the inner wall of the outer connecting sleeve is connected with the outer wall of the inner connecting sleeve;

one end of the linkage sleeve is provided with a linkage ring which contracts inwards; the linkage ring is abutted against one surface of the glass cake, which is far away from the gasket;

the end part of the external connecting sleeve is abutted against the transition ring, and the external connecting sleeve is sleeved outside the linkage sleeve in a sliding manner; the end part of the inner connecting sleeve is propped against the linkage ring; one end of the inner connecting sleeve, which is far away from the linkage ring, is connected with a tail attachment.

7. The electrical connector with bidirectional contact function of claim 6, wherein the external connection mechanism further comprises two thread sets disposed on an outer wall of the external connection sleeve; the two groups of thread groups are oppositely arranged by taking the axis of the external connecting sleeve as the center; the thread group comprises a plurality of thread strips which are uniformly distributed along the axis of the externally connected sleeve in parallel;

two placing grooves with one ends open are formed in the wall of the placing hole; the placing grooves are arranged along the axial direction of the external connecting sleeve; the two placing grooves are symmetrically arranged by taking the axis of the placing hole as a center; a plurality of feeding grooves with two open ends are arranged on the inner wall of the placing hole; when the external connection sleeve is inserted into the arrangement hole, the thread group slides in along the arrangement groove; when the external connecting sleeve rotates, the plurality of thread strips slide into the corresponding feeding grooves respectively.

8. An electrical connector with a bidirectional contact function as set forth in claim 7, wherein the screw thread strips are arranged obliquely; the open end of the feed groove is provided with a slope expanding outwards, and the end part of the thread strip contracts inwards to form a flat angular shape.

9. The electrical connector with bidirectional contact function as set forth in claim 8, wherein the external connection mechanism further comprises two sets of locking members symmetrically arranged about the axis of the internal connection sleeve;

a clamping component is connected between the two sets of locking components;

the locking component comprises a locking square rod and a locking spring;

the inner connecting sleeve and the outer connecting sleeve are provided with locking square holes penetrating through the side walls; the locking square holes are provided with two locking square holes which are symmetrically arranged by taking the axis of the internal connecting sleeve as the center;

the mouth parts at two ends of the locking square hole are respectively provided with a first locking ring and a second locking ring;

one end of the locking square rod sequentially penetrates through the first locking ring, the locking spring and the second locking ring and then is connected with the triangular prism block;

a limiting square ring is externally connected with the locking square rod; the limiting square ring is abutted against the second locking ring; two ends of the locking spring are respectively abutted against the limiting square ring and the first locking ring; the triangular prism blocks are abutted against the bottom of the placing groove; one end of the locking square rod, which is far away from the triangular prism block, is connected with the clamping member.

10. An electrical connector with bidirectional contact function as recited in claim 9, wherein the clamping member comprises two sets of clamping members arranged symmetrically with respect to each other; two ends of the two groups of clamping assemblies are hinged with each other and are respectively hinged with the locking square rod; the clamping assembly comprises two clamping blocks hinged together, and anti-slip strips are arranged on the opposite inner sides of the four clamping blocks.

Technical Field

The invention relates to the technical field of basic electrical components, in particular to an electric connector with a bidirectional contact function.

Background

The purpose of the electrical connector is to bridge two conductors in a circuit so that current can flow from one conductor to the other. The connectors are generally used in pairs, the connector mounted at the fixed end is fixed to a panel or an equipment structure by a locking device, and the free end connector is inserted into the connector and fixed to the connector by the locking device so as to realize electrical continuity. When the electric connector is used for a rear ignition device of a solid rocket engine, the requirement on the sealing performance is provided; in addition, the fixed end connector and the free end connector are usually connected by threads, so that the installation is inconvenient.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the electric connector with the bidirectional contact function so as to improve the installation convenience and the sealing property.

The invention provides an electric connector with a bidirectional contact function, which comprises:

the two ends of the contact mechanism are used for being welded with the lead;

the mounting seat is used for mounting the contact mechanism, and the contact mechanism and the mounting seat are sealed;

the external connection mechanism is connected with the mounting seat and seals the contact mechanism in the mounting seat;

after the external connection mechanism is inserted into the mounting seat, the external connection mechanism is rotated and then connected with the mounting seat, and a lead welded with the contact mechanism in the external connection mechanism is locked.

Compared with the prior art, the invention has the following beneficial effects:

in the technology of the invention, the traditional one-seat one-plug mode is eliminated by the arrangement of the contact mechanism, two electric connectors are not needed, the cost is saved, and the installation seat and the external connection mechanism seal the contact mechanism in the middle, thereby improving the sealing property. The outer mechanism is inserted into the mounting seat to be locked after rotation, and then the outer mechanism and the mounting seat are connected, so that convenience is greatly improved.

Preferably, the contact mechanism comprises two conductive metal rods and a glass cake sintered in the middle of the two metal rods;

the mounting seat comprises a placing hole formed in the end part of the mounting seat and a wire passing channel formed in the bottom of the placing hole; one end of each metal rod is positioned in the wire passing channel.

Preferably, the two metal bars are flat in the middle and provided with an annular groove along their circumference.

Preferably, the device further comprises a gasket coaxial with the placing hole; two end faces of the gasket are respectively abutted against the bottom of the placing hole and the glass cake; the gasket and one side of the glass cake back to the bottom of the placing hole are respectively propped against the external connecting mechanism.

Preferably, the outer link mechanism comprises a linkage sleeve; the linkage sleeve is sleeved outside the glass cake; one end of the linkage sleeve is externally connected with a transition ring; the transition ring is abutted against the gasket; the transition ring is connected with a limit ring extending along the axial direction of the transition ring; the gasket is located in the spacing ring.

Preferably, the external connection mechanism further comprises an external connection sleeve and an internal connection sleeve; the inner wall of the outer connecting sleeve is connected with the outer wall of the inner connecting sleeve;

one end of the linkage sleeve is provided with a linkage ring which contracts inwards; the linkage ring is abutted against one surface of the glass cake, which is far away from the gasket;

the end part of the external connecting sleeve is abutted against the transition ring, and the external connecting sleeve is sleeved outside the linkage sleeve in a sliding manner; the end part of the inner connecting sleeve is propped against the linkage ring; one end of the inner connecting sleeve, which is far away from the linkage ring, is connected with a tail attachment.

Preferably, the external connection mechanism further comprises two thread groups arranged on the outer wall of the external connection sleeve; the two groups of thread groups are oppositely arranged by taking the axis of the external connecting sleeve as the center; the thread group comprises a plurality of thread strips which are uniformly distributed along the axis of the externally connected sleeve in parallel;

two placing grooves with one ends open are formed in the wall of the placing hole; the placing grooves are arranged along the axial direction of the external connecting sleeve; the two placing grooves are symmetrically arranged by taking the axis of the placing hole as a center; a plurality of feeding grooves with two open ends are arranged on the inner wall of the placing hole; when the external connection sleeve is inserted into the arrangement hole, the thread group slides in along the arrangement groove; when the external connecting sleeve rotates, the plurality of thread strips slide into the corresponding feeding grooves respectively.

Preferably, the threaded bars are arranged obliquely; the open end of the feed groove is provided with a slope expanding outwards, and the end part of the thread strip contracts inwards to form a flat angular shape.

Preferably, the external connection mechanism further comprises two sets of locking components which are symmetrically arranged by taking the axis of the internal connection sleeve as the center;

a clamping component is connected between the two sets of locking components;

the locking component comprises a locking square rod and a locking spring;

the inner connecting sleeve and the outer connecting sleeve are provided with locking square holes penetrating through the side walls; the locking square holes are provided with two locking square holes which are symmetrically arranged by taking the axis of the internal connecting sleeve as the center;

the mouth parts at two ends of the locking square hole are respectively provided with a first locking ring and a second locking ring;

one end of the locking square rod sequentially penetrates through the first locking ring, the locking spring and the second locking ring and then is connected with the triangular prism block;

a limiting square ring is externally connected with the locking square rod; the limiting square ring is abutted against the second locking ring; two ends of the locking spring are respectively abutted against the limiting square ring and the first locking ring; the triangular prism blocks are abutted against the bottom of the placing groove; one end of the locking square rod, which is far away from the triangular prism block, is connected with the clamping member.

Preferably, the clamping member comprises two sets of clamping assemblies arranged symmetrically to each other; two ends of the two groups of clamping assemblies are hinged with each other and are respectively hinged with the locking square rod; the clamping assembly comprises two clamping blocks hinged together, and anti-slip strips are arranged on the opposite inner sides of the four clamping blocks.

Drawings

Fig. 1 is a top view of an electrical connector with bidirectional contact function according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the electrical connector with bidirectional contact of fig. 1 taken along plane CC;

fig. 3 is a BB-side cross-sectional view of the electrical connector with bidirectional contact function of fig. 1;

fig. 4 is a schematic structural diagram of a threaded bar at a position a of the electrical connector with the bidirectional contact function in fig. 1, which is matched with a feed slot;

fig. 5 is a schematic structural diagram of a mounting base of the electrical connector with the bidirectional contact function in fig. 3.

The reference numbers illustrate:

1. a contact mechanism; 11. a metal rod; 12. a glass cake;

2. a mounting seat; 21. placing the hole; 22. a wire passage; 23. a gasket; 24. a placing groove; 25. a feed slot;

3. an external connection mechanism; 31. a linkage sleeve; 32. a transition ring; 33. a limiting ring; 34. the sleeve is connected outside; 35. interconnecting the sleeves; 36. a link ring; 37. a thread group; 371. a threaded strip; 38. a locking member; 381. locking the square rod; 382. a locking spring; 383. a locking square hole; 384. a first lock ring; 385. a second lock ring; 386. a triangular prism block; 387. a limiting square ring; 39. a clamping member; 391. a clamping assembly; 391a, clamping blocks; 391b, anti-slip strips;

4. attached at the tail.

Detailed Description

In order to make the objects, technical solutions and beneficial effects of the present invention more clearly apparent, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 5, an electrical connector with a bidirectional contact function includes: the contact mechanism 1, its both ends are used for welding with wire; the mounting seat 2 is used for mounting the contact mechanism 1, and the contact mechanism 1 and the mounting seat 2 are sealed; the external connection mechanism 3 is connected with the mounting seat 2 and seals the contact mechanism 1 in the mounting seat 2; after the external connection mechanism 3 is inserted into the mounting seat 2, the external connection mechanism is rotated and then connected with the mounting seat 2, and a wire welded with the contact mechanism 1 in the external connection mechanism 3 is locked.

A wire in the mounting base 2 is welded at one end of the contact mechanism 1, and at the moment, the other wire passes through the external connection mechanism 3 and then is welded at the other end of the contact mechanism 1. Compared with the traditional one-head-one-seat two connectors (the traditional electric connectors are used in pairs), the device only uses one connector, thereby reducing the cost. The external connection mechanism 3 is inserted into the mounting seat 2 to complete connection after a small-amplitude rotation angle (the rotation amplitude is less than 90 degrees); meanwhile, the conducting wire in the external connecting mechanism 3 is locked, so that the probability of separation of the conducting wire from the welding point of the contact mechanism 1 can be reduced, and the stability of the device is improved. The direct welding with contact mechanism 1 of wire also can guarantee the electric continuity, compares and pulls out many times the plug mode traditional and inserts and easily contact not very much, and stability reinforcing.

Further, the contact means 1 comprises two electrically conductive metal rods 11 and a glass cake 12 sintered in the middle of the two metal rods 11. The mounting seat 2 comprises a placing hole 21 arranged at the end part of the mounting seat and a wire passing channel 22 arranged at the bottom of the placing hole 21; one end of the two metal rods 11 is positioned in the wire passing channel 22.

A lead is arranged in the wire passing channel 22 and is welded with the metal bar 11; the metal rod 11 and the glass cake 12 have good bonding force after glass sintering so as to realize fixation and sealing after sintering between the metal rod 11 and the glass cake 12; the metal rod 11 is made of iron-nickel-cobalt glass sealing alloy material.

Further, the two metal rods 11 are flat in the middle and provided with an annular groove along the circumference thereof.

An annular groove is formed in the middle of the metal rod 11, and the middle of the metal rod 11 is flat; the sintered glass cake 12 wraps the annular groove and the flat section of the metal rod 11 to prevent the metal rod 11 from sliding and rotating in the glass cake 12 along the axial direction thereof.

Further, a gasket 23 coaxial with the placing hole 21 is also included; two end faces of the gasket 23 are respectively abutted against the bottom of the placing hole 21 and the glass cake 12; the gasket 23 and the surface of the glass cake 12, which faces away from the bottom of the placing hole 21, are respectively abutted against the external connecting mechanism 3.

The external connecting mechanism 3 presses the gasket 23 against the bottom of the placing hole 21 and simultaneously presses the glass cake 12 against the gasket 23, so that the air in the wire passing channel 22 is isolated; the red copper with excellent extensibility is used as the material of the gasket 23 for sealing, the processing is convenient, the assembly is friendly, the requirement of the sealing performance can be effectively realized, the soft rubber gasket 23 can also be adopted, the deformability is good, and the fireproof material is coated outside the rubber gasket 23.

Further, the external connection mechanism 3 includes a linkage sleeve 31; the linkage sleeve 31 is sleeved outside the glass cake 12; one end of the linkage sleeve 31 is externally connected with a transition ring 32; the transition ring 32 abuts against the washer 23; the transition ring 32 is connected with a limit ring 33 extending along the axial direction of the transition ring; the washer 23 is located within the stop collar 33.

The gasket 23 is surrounded in the middle by the limiting ring 33, so that the axis of the gasket 23 is always in the same line with the axis of the placing hole 21 to prevent the dislocation of the gasket 23, the effect of sealing by adopting the small-size gasket 23 can be achieved, and materials are saved. The transition ring 32 can be made of red copper or soft rubber, and the rest of the external connection mechanism 3 is pressed against the transition ring 32 to play a sealing role, i.e. air cannot enter the external connection mechanism 3 along the transition ring 32.

Further, the external connection mechanism 3 further comprises an external connection sleeve 34 and an internal connection sleeve 35; the inner wall of the outer sleeve 34 is connected to the outer wall of the inner sleeve 35. One end of the linkage sleeve 31 is provided with an inward contracting linkage ring 36; the coupling ring 36 abuts against the side of the glass cake 12 facing away from the gasket 23.

The end part of the outer connecting sleeve 34 is abutted against the transition ring 32, and the outer connecting sleeve 34 is sleeved outside the linkage sleeve 31 in a sliding manner; the end of the inner connecting sleeve 35 is against the link ring 36; the end of the inner connecting sleeve 35 remote from the link ring 36 is connected to the tailpiece 4.

When the outer connecting sleeve 34 and the inner connecting sleeve 35 are driven to move towards the bottom of the placing hole 21, the outer connecting sleeve 34 abuts against the transition ring 32, so that air cannot enter the inner connecting sleeve 35 from the space between the outer connecting sleeve 34 and the transition ring 32; the inner connecting sleeve 35 abuts against the link ring 36 to drive the glass cake 12 against the gasket 23, thereby sealing the glass cake 12 and the gasket 23. When the ignition signal wire harness has electromagnetic shielding requirements on the whole, the tail attachment 4 is used for conducting a shielding layer of a lead or a wave-proof sleeve of the whole wire harness outer sleeve with the inner connecting sleeve 35 and the outer connecting sleeve 34 so as to realize the electromagnetic shielding of the signal wire harness.

Further, the external connection mechanism 3 further comprises two thread groups 37 arranged on the outer wall of the external connection sleeve 34; the two thread groups 37 are oppositely arranged by taking the axis of the external connecting sleeve 34 as the center; the thread group 37 comprises a plurality of thread strips 371 which are evenly distributed along the axis of the external connecting sleeve 34 in parallel.

The hole wall of the placing hole 21 is provided with two placing grooves 24 with one ends open; the seating grooves 24 are arranged in the axial direction of the outer sleeve 34; the two placing grooves 24 are symmetrically arranged by taking the axis of the placing hole 21 as a center; a plurality of feeding grooves 25 with two open ends are arranged on the inner wall of the placing hole 21; when the external sleeve 34 is inserted into the placing hole 21, the thread group 37 slides in along the placing groove 24; when the outer sleeve 34 is rotated, the plurality of screw strips 371 slide into the corresponding feed grooves 25, respectively.

During the installation, insert outer sleeve 34, until the inner sleeve 35 offsets with the link ring 36 and then support the back on packing ring 23 with glass cake 12, outer sleeve 34 supports on transition ring 32, rotatory outer sleeve 34 that links this moment, in a plurality of screw strips 371 slided respectively into the feed chute 25 of arrangement hole 21 inner wall, outer sleeve 34 can't be along axial withdrawal, and then realized being connected of outer sleeve 34 and mount pad 2.

Further, the thread strip 371 is obliquely arranged; the open end of the feed slot 25 is provided with an outwardly expanding slope, and the end of the thread strip 371 is inwardly contracted to be flat and angular.

When the outer sleeve 34 rotates, the end of the thread strip 371 is flat angular, the contact area between the end of the thread strip 371 and the inner wall of the placing hole 21 is reduced, and the slope of the outward expansion of the opening end of the feeding groove 25 offsets with the flat angular end of the thread strip 371, so that the end of the thread strip 371 slides into the feeding groove 25 along the slope. The feeding groove 25 is arranged obliquely, and the outer sleeve 34 can be spirally fed along the axial direction when rotating, so that the glass cake 12 can be tightly abutted against the gasket 23, and the sealing performance is enhanced.

Further, the outer connecting mechanism 3 further includes two sets of locking members 38 arranged symmetrically about the axis of the inner connecting sleeve 35. A clamping member 39 is connected between the two sets of locking members 38. The locking member 38 includes a locking square rod 381 and a locking spring 382.

The inner connecting sleeve 35 and the outer connecting sleeve 34 are provided with locking square holes 383 penetrating through the side walls; the locking square holes 383 are provided with two and are symmetrically arranged by taking the axis of the internal connecting sleeve 35 as a center; the mouth parts at the two ends of the locking square hole 383 are respectively provided with a first locking ring 384 and a second locking ring 385; one end of the locking square rod 381 penetrates through the first locking ring 384, the locking spring 382 and the second locking ring 385 in sequence and then is connected with a triangular prism block 386.

The locking square rod 381 is externally connected with a limiting square ring 387; the limit square ring 387 is abutted against the second locking ring 385; two ends of the locking spring 382 respectively abut against the limit square ring 387 and the first locking ring 384; the triangular prism block 386 is abutted against the bottom of the placing groove 24; the end of the locking square rod 381 remote from the triangular prism block 386 is connected to the clamping member 39.

When the outer connecting sleeve 34 is driven to slide into the placing hole 21, the locking square rod 381 retracts inwards after the inclined surface of the triangular prism block 386 is contacted with the placing hole 21; then the triangular prism block 386 is abutted against the inner wall of the placing hole 21; when the outer connecting sleeve 34 rotates, the triangular prism block 386 rotates to the placing groove 24, under the action of the locking spring 382, the triangular prism block 386 pops up to pull the clamping member 39, the clamping member 39 clamps the lead welded on the metal rod 11, and the lead is dragged outside the tail attachment 4 and cannot be separated from the metal rod 11. When the external sleeve 34 needs to be taken out, an object with a long rod is inserted into the placing groove 24 to apply pressure on the inclined surface of the triangular prism block 386, the triangular prism block 386 retracts inwards, and the clamping state of the clamping component 39 on the lead is released. In addition, the triangular prism block 386 pops out in the placing groove 24, and under the condition of no human intervention, the triangular prism block 386 cannot return to the state of abutting against the inner wall of the placing hole 21, namely, the triangular prism block 386 is always in the placing groove 24, so that the outer connecting sleeve 34 cannot rotate around, and the outer connecting mechanism 3 and the mounting seat 2 in the device are always in a stable connecting state. Similarly, the external connecting mechanism 3 is separated from the mounting seat 2, and the triangular prism block 386 is driven to retract by a long rod object. The triangular prism block 386 is a prism with a triangular cross section, and one of three mutually connected surfaces of the prism is connected with the locking square rod 381.

Further, the clamping member 39 comprises two sets of clamping assemblies 391 arranged symmetrically to each other; two ends of the two groups of clamping components 391 are hinged with each other and are respectively hinged with the locking square rods 381; the clamping assembly 391 comprises two clamping blocks 391a hinged together, the four clamping blocks 391a being provided on opposite inner sides with cleats 391 b.

The two locking square rods 381 are concentric, and the movement of the locking square rods 381 pulls the space between the four clamping blocks 391a in the clamping member 39 to be enlarged and reduced so as to clamp and release the wire. When an operator operates, the outer sleeve 34 is driven to enter the placing hole 21, in the rotating process, the outer sleeve 34 is connected with the mounting seat 2, and meanwhile the locking square rod 381 moves to drive the clamping component 39 to clamp the conducting wire.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.