CN209104024U - One kind, which is uncapped, detects key - Google Patents

Abstract

It uncaps the utility model relates to one kind and detects key, the key includes pedestal (1), the key lid (4) fastened with pedestal (1) presses key block (2) between pedestal (1) and key lid (4)；It is connected by spring (3) with pedestal (1) by key block (2) lower end, upper end is stretched out by the through-hole (41) at the top of key lid (4)；For pedestal (1) lower end tool there are four the conductive feet (11) for being divided into two groups, the correspondence side wall of pedestal (1) is equipped with the contact chip (12) being connected to every group of conductive feet (11)；It is equipped with the elastic slice (21) that can be electrically connected with every group of contact chip (12) by the correspondence side wall of key block (4), is connected to by the one side wall of key block (4) with the upper opposite elastic slice (21) of setting of another side wall.It uncaps and detects key using this design, not only solve fool proof, also enhance the contact reliability of key inside, while the case where the company's of avoiding weldering, greatly improving properties of product.

Description

One kind, which is uncapped, detects key

Technical field

It uncaps the utility model relates to electric energy meter field more particularly to one kind and detects key.

Background technique

Electric energy meter is widely used in electric system as a kind of measuring instrument, but the electric energy meter of the prior art there is also Many deficiencies.

Such as in intelligent electric energy meter, in order to enhance its security performance, reduce stealing hidden danger, increase flip lid, upper cover and Lower cover detects key, these keys are connected with single-chip microcontroller, and when opening the lid of electric energy meter, single-chip microcontroller just will record the shape of key State, carry out event report, which has extremely important effect to the normal use of electric energy meter.What prior art used 6 foot keys, inside have 2 groups of switches, single-chip microcontroller can state by its normality and when pressing judge whether lid is opened, It is reported to carry out event.But 6 foot keys of the prior art do not carry out fool-proof design, in the welding process it is easy to appear Device direction mistake, for the security presence hidden danger of pcb board；Simultaneously because the button design is small and exquisite, key inside switch jaw contact Area is small, and it is unreliable to contact, and spacing is too small between 6 pins, and also it is easy to appear even welding, it is hidden also to have safety Suffer from.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a kind of contacts reliably, stability is high, safety is good simultaneously Uncapping with foolproof function detects key.

To achieve the goals above, the technical solution adopted in the utility model are as follows: one kind, which is uncapped, detects key, including bottom Seat, the key lid being fastened and connected with pedestal, and key block is pressed between the pedestal and key lid；It is described to press key block lower end It is connected by spring with pedestal；It is described to be stretched out by key block upper end by the through-hole of key tops；There are four the pedestal lower end tools Conductive feet, four conductive feets are divided into two groups；The base side wall parallel with plane locating for every group of conductive feet be equipped with it is every Organize the contact chip that conductive feet number is equal and is respectively communicated with corresponding conductive feet；On the one pair of them side wall by key block respectively Equipped with can electrical connection corresponding with every group of contact chip elastic slice, and the elastic slice in the one side wall in the one pair of them side wall with wherein The corresponding elastic slice connection in the position on another side wall in a pair of sidewalls.

Further, the pedestal center is provided with positioning column, described to be provided with by key block lower end for the positioning column The limiting slot that upper end is protruded into, the spring one end are set in the positioning column upper end, and the other end is protruded into the limiting slot and mentioned For the reaction force for making mutually to separate by key block with positioning column.It, can be to avoid the rolling of key block by setting positioning column and limiting slot It is dynamic, and then elastic slice and contact chip position is caused to deviate and cause poor contact.

Further, the pedestal is equipped with the side wall of contact chip by dividing along the molding vertical straight joint one of conductive feet extending direction For two and the contact chip on the side wall is corresponded to separation.Straight joint is arranged can be to avoid the company between contact chip in process Weldering, it is ensured that product quality.

Further, each self-forming two sides in the other two sidewalls of the pedestal and the side wall for being equipped with contact chip are unconnected Guide plate is respectively equipped on another pair side wall by key block and is inserted into the fixed guide groove of cooperation for the guide plate.It is logical Setting guide plate and guide groove are crossed, convenient for pressing the assembly of key block.

Further, be equipped on each side wall in another pair side wall by key block two be vertically oppositely arranged it is convex Block forms the guide groove between described two convex blocks.

Further, it is formed on the inner wall of the key lid and abuts to stop by key block lower end at the top of the convex block The lateral rib that portion is detached from from the through-hole.The structure of this limit method is very simple.

Further, two sidewalls corresponding with the guide plate lower end of the key lid forms lug, described convex Ear is equipped with card hole, and the guide plate rear surface is correspondingly provided with the fixture block fixed for card hole buckle.Using connecting and fixing, tie Structure is simple, easy to assembly.

Further, the positioning column is cylinder.It sets cylindrical for positioning column to be convenient for matching with the spring.

Four foot type are set as compared with the prior art, the advantages of the utility model are: will uncap and detect key, are not only solved It has determined device fool proof problem, has also enhanced the contact reliability of key inside, while will not occur even welding in the welding process The case where, reduce security risk.

Detailed description of the invention

Fig. 1 is that uncapping for an embodiment of the present invention detects key schematic perspective view；

Fig. 2 is that uncapping for an embodiment of the present invention detects key configuration schematic diagram；

Fig. 3 is an embodiment of the present invention by key block bottom view；

Fig. 4 is the key lid bottom view of an embodiment of the present invention.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

As shown in Figures 1 to 4 be the embodiments of the present invention structural schematic diagram, this uncap detect key include pedestal 1, with The key lid 4 that pedestal 1 is fastened and connected, and key block 2 is pressed between the pedestal 1 and key lid 4；It is described to press under key block 2 End is connected by spring 3 with pedestal 1；It is described to be stretched out by 2 upper end of key block by the through-hole 41 at 4 top of key lid；1 lower end of pedestal tool There are four conductive feet 11, four conductive feets 11 are divided into two groups；On 1 side wall of pedestal parallel with plane locating for every group of conductive feet 11 Equipped with contact chip 12 that is equal with 11 numbers of every group of conductive feet and being respectively communicated with corresponding conductive feet 11；By wherein the one of key block 2 To be respectively equipped on side wall can electrical connection corresponding with every group of contact chip 12 elastic slice 21, and in the one side wall in one pair of them side wall Corresponding with the position on another side wall in the one pair of them side wall elastic slice 21 of elastic slice 21 be connected to.Under this scheme, increase The big contact area of key inside elastic slice 21 and contact chip 12, enhances its contact reliability；The pin spacing of device simultaneously Increase, will not occur the case where even welding in the welding process；Except this, it is that key Block direction is reversed, this will not be pressed The function of key has an impact, and has good foolproof function.

In the present embodiment, 1 center of pedestal is provided with positioning column 13, is provided with by 2 lower end of key block for 13 upper end of positioning column The limiting slot 22 protruded into, 3 one end of spring are set in 13 upper end of positioning column, and the other end protrudes into limiting slot 22 and provides reaction force Enable to move up by key block 2, to can make to separate by key block 2 with 13 phase of positioning column when not pressing to key, then realize Elastic slice 21 is conducted with contact chip 12.By setting positioning column 13 and limiting slot 22, can to avoid the shaking of key block 2, into And elastic slice 21 and 12 position of contact chip is caused to deviate and cause poor contact.In order to make to carry out very between positioning column 13 and spring 3 Good matching, the preferred shape of positioning column 13 be it is cylindric, can reduce positioning column 13 in this way and limit the spacing of cell wall, thus Reduce and shakes.

In the present embodiment, pedestal 1 is equipped with the side wall of contact chip 12 by along the molding vertical straight joint of 11 extending direction of conductive feet 14 are divided into two and are located at the contact chip 12 on the side wall is separated by corresponding.Setting straight joint 14 can be to avoid contacting in process Company's weldering between piece 12, it is ensured that product quality.

In the present embodiment, each self-forming two sides in the other two sidewalls of pedestal 1 are not connected to the side wall for being equipped with contact chip 12 Guide plate 15, be inserted into the fixed guide groove 24 of cooperation by being respectively equipped on another pair side wall of key block 2 for guide plate 15. By being equipped with two convex blocks 23 being vertically oppositely arranged, two convex blocks, 23 shapes on each side wall in another pair side wall of key block 2 At the guide groove 24.By setting guide plate 15 and guide groove, when assembly, guide plate 15 is inserted into guide groove, is able to carry out Quick assembling.

In the present embodiment, is formed on the inner wall of the key lid 4 and abut to stop key at the top of the convex block 23 The lateral rib 42 that 2 lower end of block is detached from from the through-hole 41.The structure of this limit method is very simple.

In the present embodiment, key lid 4 is connected and fixed with pedestal 1, specifically, the key lid 4 with the guide plate 15 Corresponding two sidewalls lower end forms lug 44, and the lug 44 is equipped with card hole 43,15 rear surface pair of guide plate It should be equipped with and buckle fixed fixture block 16 for card hole 43, fixture block 16 is stuck in card hole 43 and is realized between key lid 4 and pedestal 1 Fixed, structure is simple, and assembly and disassembly is all very convenient.

Other than above-mentioned improvement, other similar improvement are also contained in the improvement threshold of the utility model, herein It is not repeating.While there has been shown and described that the embodiments of the present invention, it will be appreciated by those skilled in the art that: it is not taking off These embodiments can be carried out with a variety of variations, modification, replacement and deformation in the case where from the principles of the present invention and objective, The scope of the utility model is defined by the claims and their equivalents.

Claims (8)

1. one kind, which is uncapped, detects key, it is characterised in that:

Described uncap detects the key lid (4) that key includes pedestal (1), is fastened and connected with the pedestal (1), and is located at described Key block (2) are pressed between pedestal (1) and key lid (4)；

Described to be connected by spring (3) with pedestal (1) by key block (2) lower end, upper end passes through the through-hole (41) at the top of key lid (4) It stretches out；

For pedestal (1) the lower end tool there are four conductive feet (11), four conductive feets (11) are divided into two groups；

Pedestal (1) side wall parallel with plane locating for every group of conductive feet (11) be equipped with every group of conductive feet (11) number it is equal and The contact chip (12) being respectively communicated with corresponding conductive feet (11)；

Be respectively equipped on the one pair of them side wall by key block (2) can electrical connection corresponding with every group contact chip (12) elastic slice (21), the position on another side wall in elastic slice (21) and one pair of them side wall and in the one side wall in the one pair of them side wall Set corresponding elastic slice (21) connection.

2. according to claim 1 uncap detects key, it is characterised in that:

Pedestal (1) center is provided with positioning column (13), described to be provided with by key block (2) lower end for the positioning column (13) The limiting slot (22) that upper end is protruded into, described spring (3) one end are set in the positioning column (13) upper end, and the other end protrudes into the limit In position slot (22) and provide the reaction force for making mutually to separate by key block (2) with positioning column (13).

3. according to claim 1 uncap detects key, it is characterised in that:

The pedestal (1) is equipped with the side wall of contact chip (12) by along the molding vertical straight joint (14) one of conductive feet (11) extending direction It is divided into two and the contact chip (12) being located on the side wall is separated by corresponding.

4. according to claim 3 uncap detects key, it is characterised in that:

The other two opposite side walls of the pedestal (1) are respectively formed two sides and unconnected lead with the side wall for being equipped with contact chip (12) To plate (15), it is respectively equipped on another pair side wall by key block (2) and is inserted into cooperation fixation for the guide plate (15) Guide groove (24).

5. according to claim 4 uncap detects key, it is characterised in that:

Two convex blocks (23) being vertically oppositely arranged, institute are equipped on each side wall in another pair side wall by key block (2) It states and forms the guide groove (24) between two convex blocks (23).

6. according to claim 5 uncap detects key, it is characterised in that:

It is formed on the inner wall of the key lid (4) and abuts to stop by key block (2) lower end at the top of the convex block (23) From the lateral rib (42) being detached from the through-hole (41).

7. according to claim 4 uncap detects key, it is characterised in that:

Two sidewalls corresponding with the guide plate (15) lower end of the key lid (4) forms lug (44), the lug (44) card hole (43) are equipped with, guide plate (15) rear surface is correspondingly provided with the fixture block fixed for card hole (43) buckle (16)。

8. according to claim 2 uncap detects key, it is characterised in that:

The positioning column (13) is cylinder.