Unlocking in-place indication switch assembly

Abstract

The utility model provides an unlocking in-place indication switch assembly, which comprises a switch body, a large shell, a mounting seat and a connector socket, the switch body is arranged in the large shell, the mounting seat is fixed on the large shell, the connector socket is fixed on the mounting seat, and a lead of the switch body penetrates through the mounting seat and is crimped on the connector socket; the switch body comprises a movable contact system, a static contact system, a small shell, a spring system, a fixing seat and a lead-out wire, the movable contact system is placed in an inner cavity of the small shell, and the lower end of the movable contact system penetrates through the spring system arranged in the inner cavity of the small shell; the static contact system is arranged at the lower part of the small shell inner cavity; the leading-out wire is fixed on a contact reed in the static contact system; a contact mechanism formed by connecting three pairs of contact reeds in parallel can bear strong vibration and strong impact from six degrees of freedom and keep contact of contacts all the time, so that the contact reliability and stability of the switch are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromechanical components, and in particular relates to an unlocking position indicating switch component. Background Art

[0002] With the development of aircraft equipment, the requirements for cabin door lock system equipment are gradually increasing. A travel switch is needed that can reliably contact under mechanical pressure for a long time and ensure reliable conversion of signals when rebounding.

[0003] Chinese patent publication number CN104299800 discloses a travel switch, in which the movable and static contacts are respectively a pin contact and a coaxially arranged socket contact. The movable contact is connected and engaged by reciprocating movement of the movable contact. This plug-in connection method utilizes a centring axial hole positioning method to ensure the coaxial movement of the pin contact relative to the socket contact. In addition, the inner hole of the socket contact engages with the pin via an annular inner rotation contact engagement structure, thereby increasing the contact area and making the contact between the movable and static contacts of the travel switch stable and reliable.

[0004] However, for hatch door lock systems, this component's function is to provide feedback indicating a locked position. Since the hatch door lock system relies solely on mechanical operation, when locked, the lock head, driven by the elastic potential energy of the tension spring, impacts the switch assembly's handle with a force of 5 m / s. Therefore, the switch assembly must maintain contact continuity and prevent flickering signals even under such high-impact conditions. Excessive impact can easily cause contact disconnection, resulting in a flickering signal, which fails to meet the requirements for a locked position feedback signal in certain hatch door lock systems. Utility Model Content

[0005] In response to the existing problems, the utility model provides an unlocked position indicating switch assembly, comprising: a switch body, a large housing, a mounting base and a connector socket. The switch body is installed in the large housing, the mounting base is fixed on the large housing, the connector socket is fixed on the mounting base, and the lead wires of the switch body pass through the mounting base and are crimped on the connector socket.

[0006] Furthermore, the unlocked position indicating switch assembly is characterized in that: the switch body includes a dynamic contact system, a static contact system, a small housing, a spring system, a fixing seat, and a lead wire; the dynamic contact system is placed in the inner cavity of the small housing, the upper end of the dynamic contact system passes through the guide hole of the small housing, and the lower end passes through the spring system arranged in the inner cavity of the small housing; the static contact system is placed in the lower part of the inner cavity of the small housing, and the fixing seat is screwed into the threaded hole in the inner cavity of the small housing to lock and fix the static contact system; the lead wire is fixed on the contact spring in the static contact system.

[0007] Furthermore, the dynamic contact system includes a push handle, an inner insulating bushing, a dynamic contact ring, a nut and an outer insulating bushing. The inner insulating bushing, the dynamic contact ring and the outer insulating bushing are sequentially inserted into the push handle and fixed to the push handle by tightening the nut thread.

[0008] Furthermore, the spring system includes: a compression spring, a guide sleeve, a guide ring and a screw sleeve. The upper end of the compression spring is installed on the limit step of the dynamic contact system, and the lower end is installed on the outer limit step on the guide sleeve; the guide ring is placed under the inner limit step of the guide sleeve, the guide ring and the guide sleeve are placed on the limit step of the screw sleeve, and the screw sleeve is screwed into the threaded hole in the inner cavity of the small shell and locked; the guide ring mouth is used to accommodate the dynamic contact system.

[0009] Furthermore, the static contact system includes a contact spring, a base and a pedestal; wherein the plurality of contact springs are tightly attached to the plurality of limiting grooves of the pedestal; and the pedestal is inserted into the pedestal to compress the contact springs.

[0010] Furthermore, the outer insulating bushing and the inner insulating bushing are both hollow tubes, divided into two sections, thin and thick, with the inner diameters of the two sections being equal. The outer diameter of the thin section matches the inner diameter of the dynamic contact ring, and the outer diameter of the thick section is equal to the outer diameter of the dynamic contact ring.

[0011] Furthermore, there are six contact springs, three of which are welded in parallel to form a group, controlling one end of the circuit; two groups of contact springs are relatively distributed to form a regular hexagon; and the upper end of the contact spring contacts the moving contact system.

[0012] Furthermore, a sealing ring positioning groove is provided in the guide hole of the small housing for accommodating a sliding sealing ring.

[0013] Furthermore, a circle of sealing ring positioning grooves is opened at the contact point between the switch body and the large shell, which is used to accommodate sealing ring A; and sealing ring B is also placed at the connection point between the mounting seat and the large shell.

[0014] The unlocked position indicator switch according to claim 1 is characterized in that: the mounting base locks and fixes the connector by passing multiple bolts through the M3 spring washer, the M3 flat washer, and the connector socket; and the fuse is passed through the fuse hole of the multiple bolts and wrapped around and locked.

[0015] The utility model has the following beneficial effects:

[0016] The contact mechanism composed of three pairs of contact springs connected in parallel can withstand strong vibration and strong impact from six degrees of freedom and always maintain contact, greatly improving the contact reliability and stability of the switch; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the planed structure of the switch structure of the utility model;

[0018] Figure 2 This is a left side view of the switch structure of the utility model;

[0019] Figure 3 This is a right side view of the switch structure of the utility model;

[0020] Figure 4 It is a top view of the switch structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the planed structure of the switch body of the utility model;

[0022] Figure 6 This is a top view of the switch body of the utility model;

[0023] Figure 7 This is a schematic diagram of the planing structure of the dynamic contact system of the utility model;

[0024] Figure 8 This is a schematic diagram of the planing structure of the static contact system of the utility model;

[0025] Figure 9 This is a schematic diagram of the circuit in the free state of the embodiment of the utility model;

[0026] Figure 10 It is a circuit diagram of an embodiment of the utility model in an operating state. DETAILED DESCRIPTION

[0027] The following is a detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings

[0028] See also Figure 1-4 The utility model provides a technical solution: an unlocked position indicating switch assembly, comprising a switch body 1, a large housing 2, a mounting base 3, a connector socket 4, an M3 spring washer 5, an M3 flat washer 6, a sealing ring A 7, a sealing ring B 8, a sealing ring C 9, an M2×6 cross recessed countersunk screw 10, an M2×8 cross recessed countersunk screw 11, a bolt 12 and a fuse 13; wherein the sealing ring A sleeve 7 is placed on the switch body and then inserted into the large housing 2, and the sealing ring A 7 is used to achieve a static seal between the switch body 1 and the large housing 2, and four M2×8 cross recessed countersunk screws 11 are used to pass through the small The housing mounting panel 17 is fastened to the large housing 2; the wires on the switch body 1 pass through the mounting base 3, and a sealing ring B 8 is placed between the mounting base 3 and the large housing 2 to achieve static sealing, and then four M2×6 cross-slot countersunk screws 10 are used to pass through the mounting panel of the mounting base 3 and lock it to the large housing 2; then the lead wire 23 is fixed to the connector socket 4 by crimping, and four bolts are passed through the M3 spring washer 5, M3 flat washer 6, and connector socket 4 to lock it to the mounting base 3; finally, a fuse 13 is passed through the fuse hole of the four bolts 12 and wrapped around and locked.

[0029] See also Figure 5-6The switch body of the unlocked position indicator switch assembly includes a dynamic contact system 14, a sliding seal ring 15, a compression spring 16, a small housing, a guide sleeve 18, a static contact system 19, a guide ring 20, a screw sleeve 21, a fixing seat 22 and a lead wire 23; wherein the sliding seal ring 15 is installed in the positioning hole of the small housing seal ring 17, and a small amount of aviation grease is applied around the sliding seal ring 15 to ensure the dynamic sliding seal of the switch; the handle 24 in the dynamic contact system passes through the guide hole of the small housing 17, and the compression spring 16 and the guide sleeve 18 are sequentially installed into the inner cavity of the small housing 17. , guide ring 20; compression spring 16 is installed on the limiting step of handle 24 and the limiting step on guide sleeve 18; screw sleeve 21 into the threaded hole in the inner cavity of small shell 17 and lock it, and reinforce it with thread glue; static contact system 14 is inserted into the inner cavity of small shell 17, and screwed into the threaded hole in the inner cavity of small shell 17 through fixing seat 22 to lock it; lead-out wire 23 is fixed on contact spring 29 in static contact system 19 by welding, and white silicone rubber is sealed at the bottom of static contact system 19 to protect welding point and realize static sealing.

[0030] See also Figure 7 The dynamic contact system of the unlocked position indicating switch assembly includes a push handle 24, an inner insulating bushing 25, a dynamic contact ring 26, a nut 27 and an outer insulating bushing 28; wherein the inner insulating bushing 25, the dynamic contact ring 26 and the outer insulating bushing 28 are sequentially inserted into the push handle 24, and are fixed to the push handle 24 by screwing the nut 27, and reinforced with thread glue.

[0031] See also Figure 8 The static contact system of the unlocked position indicating switch assembly includes a contact spring 29, a base 30 and a base 31; six contact springs 29 are tightly attached to the six limit grooves of the base; the base is inserted into the base to press the contact spring 29, and epoxy resin glue is applied to the gap fit to reinforce it.

[0032] How it works: See Figure 9-10 The circuit form of this unlocked position indicator switch assembly is a normally open circuit. In the free state, contact spring 29 contacts outer insulating sleeve 28, disconnecting pins 1-2 of the switch. When the handle 24 is driven downward by force, the force is transmitted to the dynamic contact ring 26, which contacts the contact spring 29, connecting pins 1-2 and completing a switch transition. When the external force is removed, the switch returns to the free state under the action of compression spring 16, completing a single cycle.

[0033] The above describes in detail the technical solution of the present invention in conjunction with the accompanying drawings. When using the unlocking position indicator switch assembly, it can withstand strong vibrations and strong impacts from 6 degrees of freedom and always maintain contact, which greatly improves the contact reliability and stability of the switch; it has a waterproof and sealing function, which can ensure that the hatch lock system equipment can still provide a stable locking signal when exposed to the atmospheric environment.

[0034] The above disclosures are only a few specific embodiments of the present invention. However, the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An unlocking position indicating switch assembly, characterized in that: include: A switch body (1), a large housing (2), a mounting seat (3) and a connector socket (4) are provided. The switch body (1) is installed in the large housing (2), the mounting seat (3) is fixed on the large housing (2), the connector socket (4) is fixed on the mounting seat (3), and the lead wire (23) of the switch body (1) passes through the mounting seat (3) and is crimped onto the connector socket (4).

2. The unlocking position indicating switch assembly according to claim 1, characterized in that: The switch body (1) comprises a dynamic contact system (14), a static contact system (19), a small housing (17), a spring system, a fixing seat (22), and a lead wire (23). The dynamic contact system (14) is placed in the inner cavity of the small housing (17), the upper end of the dynamic contact system (14) passes through the guide hole of the small housing (17), and the lower end passes through the spring system arranged in the inner cavity of the small housing (17); the static contact system (19) is placed in the lower part of the inner cavity of the small housing (17), and is screwed into the threaded hole in the inner cavity of the small housing (17) through the fixing seat (22) to lock and fix the static contact system (14); the lead wire (23) is fixed on the contact spring (29) in the static contact system (19).

3. The unlocking position indicating switch assembly according to claim 2, wherein: The dynamic contact system (14) comprises a push handle (24), an inner insulating bushing (25), a dynamic contact ring (26), a nut (27) and an outer insulating bushing (28). The inner insulating bushing (25), the dynamic contact ring (26) and the outer insulating bushing (28) are sequentially inserted into the push handle (24) and fixed to the push handle (24) by screwing the nut (27).

4. The unlocking position indicating switch assembly according to claim 2, wherein: The spring system comprises a compression spring (16), a guide sleeve (18), a guide ring (20) and a screw sleeve (21); the upper end of the compression spring (16) is mounted on the limiting step of the dynamic contact system (14), and the lower end is mounted on the outer limiting step of the guide sleeve (18); the guide ring (20) is placed under the inner limiting step of the guide sleeve (18); the guide ring (20) and the guide sleeve (18) are placed on the limiting step of the screw sleeve (21); the screw sleeve (21) is screwed into the threaded hole in the inner cavity of the small shell (17) and locked and fixed; the ring opening of the guide ring (20) is used to accommodate the dynamic contact system (14).

5. The unlocking position indicating switch assembly according to claim 2, characterized in that: The static contact system (19) comprises a contact spring (29), a base (30) and a pedestal (31), wherein a plurality of contact springs (29) are tightly attached to a plurality of limiting grooves of the pedestal (30); and the pedestal (31) is inserted into the pedestal (30) to press the contact springs (29).

6. The unlocking position indicating switch assembly according to claim 3, characterized in that: The outer insulating bushing (28) and the inner insulating bushing (25) are both hollow tubes and are divided into two sections, a thin section and a thick section. The inner diameters of the two sections are equal. The outer diameter of the thin section matches the inner diameter of the dynamic contact ring (26), and the outer diameter of the thick section is equal to the outer diameter of the dynamic contact ring (26).

7. The unlocking position indicating switch assembly according to claim 3, wherein: There are six contact springs (29), three of which are welded in parallel to form a group, controlling one end of the circuit; two groups of contact springs (29) are relatively distributed to form a regular hexagon; the upper ends of the contact springs (29) contact the moving contact system (14).

8. The unlocking position indicating switch assembly according to claim 2, wherein: A sealing ring positioning groove is provided in the guide hole of the small housing (17) for accommodating the sliding sealing ring (15).

9. The unlocking position indicating switch assembly according to claim 1, wherein: A sealing ring positioning groove is provided at the contact point between the switch body (1) and the large housing (2) for accommodating a sealing ring A (7); a sealing ring B (8) is also provided at the connection point between the mounting seat (3) and the large housing.

10. The unlocking position indicating switch assembly according to claim 1, wherein: The mounting seat (3) locks and fixes the connector by passing a plurality of bolts through an M3 spring washer (5), an M3 flat washer (6), and a connector socket (6); and a fuse (13) is passed through the fuse holes of the plurality of bolts (12) and wound around and locked.

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