Microswitch fixing structure of dual-power automatic change-over switch

Abstract

The utility model belongs to the technical field of fixing structures of change-over switches, and particularly relates to a microswitch fixing structure of a dual-power automatic change-over switch. The device comprises an upper cover and a connecting piece, a mounting position is arranged on the surface of the upper cover, and at least two mounting holes are formed in the mounting position; the connecting piece comprises a fixed seat, a positioning column and a second buckle, and a first buckle corresponding to the mounting hole is arranged at the bottom of the fixed seat; the positioning columns are fixed at the top of the fixed seat, and the at least two positioning columns are used for being inserted into mounting holes in the microswitch in a matched manner; the second buckles are fixed to the top of the fixing base, and the at least two second buckles are installed on the two side edges of the microswitch. The utility model is used for solving the problem that the micro switch of the dual-power change-over switch is low in fixing and mounting efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of the fixing structure of a change-over switch, and particularly relates to a fixing structure of a micro switch of a dual-power automatic change-over switch. Background Art

[0002] The dual-power automatic change-over switch generally has operation modes such as automatic, manual, and double-break padlock. Different designs of the dual-power automatic change-over switch may vary, but the basic function of the micro switch is to control the on-off of the corresponding circuit according to the operation state of the switch. In this way, automatic or manual switching of the power supply can be realized, and the safety and reliability in specific situations can be ensured.

[0003] At present, the fixing method of the micro switch in similar products on the market all adopts the method of fixing with a threaded mounting hole in cooperation with a bolt. Generally, two mounting holes are provided in the micro switch, and the micro switch is fixed in the housing inside the change-over switch by passing the bolt through the mounting holes.

[0004] However, the existing bolt fixing method takes a long time, and situations such as bolt thread slipping and blockage of the mounting threaded holes are likely to occur during the installation process, seriously affecting the assembly efficiency of the product and increasing the material loss. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fixing structure of a micro switch of a dual-power automatic change-over switch, which is used to solve the problem of low fixing and installation efficiency of the micro switch of the dual-power change-over switch.

[0006] The technical solution for the utility model to solve the above technical problem is as follows: A fixing structure of a micro switch of a dual-power automatic change-over switch, which includes:

[0007] An upper cover, on the surface of which there is a mounting position, and at least two mounting holes are provided in the mounting position;

[0008] A connecting member, which includes:

[0009] A fixing seat, at the bottom of which there is a first buckle corresponding to the mounting hole;

[0010] Positioning columns, fixed on the top of the fixing seat, and at least two of the positioning columns are used to be inserted into the mounting holes on the micro switch in a matching manner;

[0011] Second buckles, fixed on the top of the fixing seat, and at least two of the second buckles are installed on both sides of the micro switch.

[0012] Compared with the prior art, the above technical solution has the following beneficial effects:

[0013] An installation position is set in the upper cover inside the automatic transfer switch with dual power sources. After the installation holes in the installation position and the first buckles at the bottom of the fixed seat are tightly clamped with each other, the fixed seat is fixed on the upper cover. The two installation holes ensure the stability of the fixed seat. Then, the positioning posts on the fixed seat are inserted into the installation holes in the micro switch to limit the micro switch. The second buckles on the fixed seat are arranged to fit the side of the micro switch to fix the micro switch on the fixed seat. During the installation of the micro switch, only need to first snap in the fixed seat and then insert the micro switch. The whole installation is convenient and fast, and the efficiency is greatly improved.

[0014] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0015] In one embodiment, the second buckle includes:

[0016] Elastic columns, fixed on the fixed seat by fitting the outer side surface of the micro switch;

[0017] Wedge-shaped buckles, fixed at the inner top of the elastic columns, and the distance between the bottom of the wedge-shaped buckles and the fixed seat is equal to the height of the micro switch.

[0018] In one embodiment, at least two edges of the installation position are provided with limiting grooves, and the bottom of the fixed seat is provided with limiting strips matching the limiting grooves.

[0019] The two limiting grooves and the limiting strips can generally limit the position of the fixed seat on the upper cover to prevent the fixed seat from shaking.

[0020] In one embodiment, at least one of the limiting grooves includes a plurality of first groove segments and second groove segments connected in sequence, and a certain included angle is formed between the first groove segment and the second groove segment.

[0021] The limiting groove formed by the first groove segment and the second groove segment with an included angle enables the limiting groove to play a limiting role from multiple directions, improving the limiting stability effect between the limiting groove and the limiting strip.

[0022] In one embodiment, redundant through holes are formed through the fixed seat and the upper cover.

[0023] In one embodiment, it further includes a limiting edge, and the limiting edge surrounds the bottom side of the micro switch and is fixedly connected to the fixed seat.

[0024] In one embodiment, the limiting edge surrounds at least three corners of the micro switch.

[0025] In one embodiment, the limiting edge surrounds the two corners on the side of the micro switch away from its sensing contact.

[0026] In one embodiment, the first buckle is a V-shaped elastic buckle that matches the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a top view structural schematic diagram of the upper cover of the present invention.

[0029] Figure 2 It is Figure 1 a sectional structural schematic diagram taken along the A-A direction in

[0030] Figure 3 It is a front view structural schematic diagram of the connector in the present invention.

[0031] Figure 4 It is Figure 3 a three-dimensional structural schematic diagram of

[0032] Figure 5 It is a top view structural schematic diagram of the overall installation of the connector on the upper cover in the present invention.

[0033] Figure 6 It is Figure 5 a sectional structural schematic diagram taken along the B-B direction in

[0034] Reference numerals:

[0035] 1. Upper cover; 2. Installation position; 3. Mounting hole;

[0036] 4. Fixed seat; 5. First buckle; 6. Positioning post; 7. Second buckle;

[0037] 701. Elastic column; 702. Wedge-shaped buckle;

[0038] 8. Limit groove; 9. Limit strip; 801. First groove section; 802. Second groove section;

[0039] 10. Redundant through hole; 11. Limit edge; 12. Micro switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following will describe in detail the embodiments of the technical solutions of the present invention with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0041] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those skilled in the art to which this utility model belongs.

[0042] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this utility model.

[0043] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of this utility model, "a plurality" means two or more unless otherwise specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0045] As Figures 1-6 shown, a microswitch fixing structure of a dual-power automatic transfer switch provided by this utility model includes: an upper cover and a connecting member. The connecting member includes a fixing seat, positioning columns, a first buckle, and a second buckle; two microswitches are installed on the fixing seat, so there are four positioning columns.

[0046] An installation position is provided on the surface of the upper cover, and at least two installation holes are opened in the installation position, where the installation position is a platform fixed on the surface of the upper cover and slightly higher than its surface.

[0047] The fixing seat is a component that covers the installation position for carrying the microswitch and connecting the upper cover. A first buckle corresponding to the installation hole is provided at the bottom of the fixing seat. There are two first buckles, which respectively correspond to the two installation holes. The fixing seat is kept stable after the two first buckles are snapped into the installation holes. The first buckle is a V-shaped elastic buckle matching the installation hole, and the installation hole is a square hole matching the first buckle. The V-shaped elastic buckle can deform and contract when extending into the installation hole and release and lock after completely extending into the installation hole to ensure the stable connection between the first buckle and the installation hole.

[0048] The positioning posts are fixed on the top of the fixing base. The positioning posts are used to be inserted into the mounting holes on the micro switch for matching, playing a positioning and limiting role. Every two positioning posts limit one micro switch. The second buckle is fixed on the top of the fixing base, and at least two of the second buckles are installed on both sides of the micro switch. Specifically, second buckles are respectively arranged on both sides of each micro switch for clamping and fixing the micro switch.

[0049] Installation positions are arranged in the upper cover inside the automatic transfer switch for dual power supplies. After the mounting holes in the installation positions and the first buckles at the bottom of the fixing base are tightly clamped with each other, the fixing base is fixed on the upper cover. The two mounting holes ensure the stability of the fixing base. Then, the positioning posts on the fixing base are inserted into the mounting holes in the micro switch to play a role in limiting the micro switch. The second buckles on the fixing base are arranged in a manner that fits the sides of the micro switch, fixing the micro switch on the fixing base. During the installation process of the micro switch, only need to first snap in the fixing base and then turn on the micro switch. The whole installation is convenient and fast, and the efficiency is greatly improved. Compared with the original assembly method, the assembly time is saved by more than 100%, and the raw material loss is reduced by 95%.

[0050] At the same time, problems existing in screw installation can be avoided, such as the screw being prone to slipping threads, and the screw and the shell being prone to generating waste chips to block the screw holes, etc. There will be no such problems through the connection of the fixing base, the first buckle and the second buckle.

[0051] Specifically, the second buckle includes: an elastic column and a wedge-shaped buckle.

[0052] The elastic column is fixed on the fixing base by fitting the outer side surface of the micro switch. The wedge-shaped buckle is fixed at the inner top of the elastic column. The distance between the bottom of the wedge-shaped buckle and the fixing base is equal to the height of the micro switch, so that the stable switch can be matched, limited and fixed through the elastic column and the wedge-shaped buckle. The inclined surface of the wedge-shaped buckle is arranged upwards, which can cooperate with the elastic column to facilitate the snapping in of the micro switch.

[0053] In an embodiment, at least two edges of the installation position are provided with limiting grooves, and the bottom of the fixing base is provided with limiting strips matching the limiting grooves. The limiting strips at the bottom of the fixing base are snapped into the limiting grooves in the installation position. The two limiting grooves and the limiting strips can generally limit the position of the fixing base on the upper cover and prevent the fixing base from shaking.

[0054] Further, at least one of the limiting grooves includes a plurality of first groove segments and second groove segments connected in sequence. Among them, the first groove segments are horizontally arranged, and the second groove segments are vertically arranged, so that a certain included angle is formed between the first groove segments and the second groove segments. The continuous first groove segments and second groove segments form a curved limiting groove, so that the limiting groove can play a limiting role from multiple directions, improving the limiting stability effect between the limiting groove and the limiting strip.

[0055] On the basis of setting the limit groove, redundant through holes are formed through the fixed seat and the upper cover. The redundant through holes do not interfere with the installed micro switch. In some extreme cases, fasteners such as bolts can be used to fix the fixed seat on the upper cover through the redundant through holes.

[0056] To further strengthen the limitation and fixation of the micro switch on the fixed seat, a limit rib is provided. The limit rib surrounds the bottom side of the micro switch and is fixedly connected to the fixed seat. The limit rib and the fixed seat are integrally formed. The height of the limit rib is only required to block the bottom of the side plate of the micro switch.

[0057] The setting of the limit rib can better stabilize the micro switch. Since the change-over switch is prone to strong vibration during the switching action, when the screw fastening is loose, the contact point of the micro switch is likely to be displaced, resulting in the failure of the micro switch to be effectively triggered. The setting of the limit rib can better firmly limit the micro switch and prevent the micro switch from deviating during vibration.

[0058] To ensure that the limit rib can surround and fix the micro switch to the greatest extent, the limit rib surrounds at least three corners of the micro switch. Generally, the micro switch is quadrilateral. After fixing three corners by the limit rib, the micro switch can be limited on the plane of the fixed seat without deviation to the greatest extent.

[0059] Furthermore, the limit rib surrounds the two corners of the micro switch on the side far from its sensing contact. The limit rib is arranged far from the sensing contact of the micro switch, leaving space for the sensing contact side of the micro switch. At the same time, it stably supports the micro switch from the rear, so that the micro switch is supported when the sensing contact is pressed.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A micro switch fixing structure of a dual power automatic transfer switch, characterized in that: include: An upper cover, wherein a mounting position is provided on the surface of the upper cover, and at least two mounting holes are opened in the mounting position; A connecting piece, the connecting piece comprising: A fixing seat, wherein a first buckle corresponding to the mounting hole is provided at the bottom of the fixing seat; A positioning column fixed on the top of the fixing seat, at least two of the positioning columns are used to match and insert into the mounting hole on the micro switch; The second buckle is fixed on the top of the fixing seat, and at least two of the second buckles are installed on two side edges of the micro switch.

2. The fixing structure according to claim 1, characterized in that: The second buckle comprises: An elastic column, which fits the outer side of the micro switch and is fixed on the fixing seat; A wedge-shaped buckle is fixed to the top of the inner side of the elastic column, and the distance between the bottom of the wedge-shaped buckle and the fixing seat is equal to the height of the micro switch.

3. The fixing structure according to claim 1, characterized in that: At least two edges of the installation position are provided with limiting grooves, and the bottom of the fixing seat is provided with limiting strips matching the limiting grooves.

4. The fixing structure according to claim 3, characterized in that: At least one of the limiting grooves includes a plurality of first groove sections and second groove sections connected in sequence, and a certain angle is formed between the first groove section and the second groove section.

5. The fixing structure according to claim 3, characterized in that: The fixing seat and the upper cover are provided with redundant through holes.

6. The fixing structure according to claim 1, characterized in that: It also includes a limit rib, which is arranged around the bottom of the side of the micro switch and is fixedly connected to the fixing seat.

7. The fixing structure according to claim 6, characterized in that: The limit stop edge is arranged around at least three corners of the micro switch.

8. The fixing structure according to claim 7, characterized in that: The limit retaining edge is arranged around two corners of the micro switch on a side away from the sensing contact point.

9. The fixing structure according to claim 1, characterized in that: The first buckle is a V-shaped elastic buckle matching the mounting hole.

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