CN201438439U

CN201438439U - Ball switch

Info

Publication number: CN201438439U
Application number: CN2009201322168U
Authority: CN
Inventors: 陈绍寒; 宋向群; 曾流华
Original assignee: SHENZHEN LIGHT COUNTRY ELECTRONICS CO Ltd
Current assignee: SHENZHEN LIGHT COUNTRY ELECTRONICS CO Ltd
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-04-14
Anticipated expiration: 2019-05-25

Abstract

The utility model relates to a ball switch, which comprises a cylindrical conduction shell, a first ball, a first insulation block, a first metal piece, a second ball, a second insulation block and a second metal piece, wherein the bottom end of the cylindrical conduction shell is provided with an opening; a first conduction terminal passes through the first insulation block, the first metal piece, the second insulation block and the second metal piece to form a first cavity and a second cavity respectively; the first ball can be contained in the first cavity in a rollable way, and the second ball can be slidingly contained in the second cavity in a rollable way; when the ball switch is in the vertical position, the first ball is in contact with the first conduction terminal and the first metal piece, and the second ball is in contact with the first conduction terminal and the second metal piece; when the ball switch is affected by external force, the first ball is in the disconnection contact with the first conduction terminal or the first metal piece at least, and the second ball is in the disconnection contact with the first conduction terminal or the second metal piece at least. With the adoption of the double-layer parallel switch combination, the ball switch has better stability and stronger reliability.

Description

A kind of ball switch

Technical field

The utility model relates to a kind of switch, more particularly, relates to a kind of ball switch.

Background technology

General vertical electrical appliance; as land movably electrical appliance such as light fixture, desk lamp, vertical electric fan, warm braw fan, electric heater, mosquito killing lamp; usually all there is not safety guard; in use; when toppling over if receive external force vibrations, the bulb of Yin Gaore, fluorescent tube be direct heat conduction combustibles and causing danger easily.

Existing ball switch as shown in Figure 1, comprise a column, be inverted U-shaped conductive shell, be placed with a ball in this conductive shell, the opening part of metal shell bottom is provided with collets, collets center opposite position is provided with a perforation, the side of described collets is provided with a blind hole, the top of collets is provided with a metalwork, one conducting terminal passes the perforation and the metalwork of collets, and stand on the central authorities of metal shell, another conducting terminal passes the blind hole of collets side, is extended downwards by the metalwork bottom.When as shown in Figure 1 ball switch during in the upright position, ball contacts two conducting terminals, switch closure respectively; When influenced by external force to topple over, ball rolls, and makes and leaves one of them conducting terminal, and ball switch disconnects.Because ball switch ball shown in Figure 1 has only one deck, the single switch instability, unreliable that causes of home loop can not adapt to than complex environment.

The utility model content

The technical problems to be solved in the utility model is, at the above-mentioned ball switch instability of prior art, unreliable, the defective that can not adapt to complex environment, provides a kind of high stability, high reliability, can adapt to the ball switch of complex environment.

The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of ball switch, the tubular conductive shell that comprises a bottom end opening, first ball, conductive shell bottom opening place is provided with first collets, first collets top is provided with first metalwork, described first metalwork is connected with conductive shell, described first metalwork top is provided with second collets, second collets top is provided with second metalwork, described second metalwork is connected with conductive shell, described first metalwork, second metalwork is the hollow metal part of both ends open, and described first metalwork, the minimum diameter of second metalwork is greater than the maximum outside diameter of first conducting terminal, the center opposite position of described first collets and second collets is respectively equipped with first perforation and second perforation, and first conducting terminal passes through first perforation and second perforation; Described first metalwork, described first collets, described second collets and described first conducting terminal form first cavity; Described second metalwork, described second collets, described conductive shell and described first conducting terminal form second cavity, and first ball rollably is placed in described first cavity, and second ball rollably is placed in described second cavity; Ball switch is when the upright position, and described first ball contacts with described first metalwork with described first conducting terminal, and described second ball contacts with described second metalwork with described first conducting terminal; When being subjected to external force to influence, described first ball disconnects with described first conducting terminal or described first metalwork at least and contacting, and described second ball disconnects with described first conducting terminal or described second metalwork at least and contacting.

In ball switch described in the utility model, form a blind hole on the sidewall of first collets that contact with described conductive shell, second conducting terminal passes described blind hole and connects in conductive shell, and described second conducting terminal extends to conduction shell nozzle direction.

In ball switch described in the utility model, described first metalwork comprises the first hollow round table portion of upper port greater than lower port; Described second metalwork comprises the second hollow round table portion of upper port greater than lower port.

In ball switch described in the utility model, described first metalwork comprises the first hollow circuit cylinder portion, and an end face of the described first hollow circuit cylinder portion and the upper port end face of the described first hollow round table portion join; Described second metalwork comprises the second hollow circuit cylinder portion, and an end face of the described second hollow circuit cylinder portion and the upper surface of the described second hollow round table portion join.

In ball switch described in the utility model, the scope of the inclined angle alpha of described first hollow round table, second hollow round table is 35 °～55 °.

In ball switch described in the utility model, described first ball is two.

In ball switch described in the utility model, described second ball is two.

In ball switch described in the utility model, the described first conducting terminal top end is provided with a conducting metal piece, and the maximum outside diameter of described conducting metal piece is less than the minimum diameter of described second metalwork.

In ball switch described in the utility model, described conducting metal piece is cone shape or cylindric metal derby, and the diameter of the vertical range of conductive shell top inwall less than second ball arrived in its center, top.

Implement ball switch of the present utility model, has following beneficial effect: compared to existing technology, conductive shell is built-in with two metalworks, and two metalworks are connected conduction by ball with conducting terminal wherein respectively, and ball plays outage and energising effect by rolling.Therefore, have only when two-layer ball all is rolled to one of them conducting terminal of disconnection, ball switch just disconnects, and can avoid interference the situation that vibrations disconnect switch, therefore stable more, better reliability.

In addition, be placed with two balls in conjunction with each layer again, therefore have only when 4 balls all roll the leaving water mean place, ball switch just disconnects, and has improved the stability and the reliability of ball switch more.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the structural representation of the utility model prior art ball switch;

Fig. 2 is the assembled sectional view of the utility model ball switch preferred embodiment;

Fig. 3 is the three-dimensional exploded view of the utility model ball switch preferred embodiment;

Fig. 4 is the equivalent circuit diagram of the utility model ball switch preferred embodiment.

Embodiment

As shown in Figure 2, the ball switch of present embodiment comprises the tubular conductive shell 10 of a bottom end opening, first collets 21, first metalwork 31, second collets 22, second metalwork, 32, the first balls 41, second ball 42, first conducting terminal 11 and second conducting terminal 12.

Conductive shell 10, the tubular cover body of the bottom end opening of making for metal material forms a room and a bottom opening.

First collets 21, be to make with colloidal materials, with a cylindrical insulation block that cooperates conductive shell to be provided with, its center is provided with first perforation that matches with first conducting terminal, 11 external diameters, and forms a blind hole of passing for second conducting terminal on the conductive shell 10 contacted sidewalls.

First metalwork 31, it is the conduction block that cooperates conductive shell to be provided with, this conduction block comprises the first hollow circuit cylinder portion 312 and the first hollow round table portion 311, the upper port of the described first hollow round table portion 311 is greater than lower port, an end face of the described first hollow circuit cylinder portion 312 and the upper port end face of the described first hollow round table portion join, and the scope of the inclined angle alpha of the described first hollow round table portion is 35 °～55 °.

Second collets 22 are to make with colloidal materials, and with a cylindrical insulation block that cooperates conductive shell to be provided with, its center is provided with second perforation that matches with the first conducting terminal external diameter.

Second metalwork 32, it is the conduction block that cooperates conductive shell to be provided with, this conduction block comprises the second hollow circuit cylinder portion 322 and the second hollow round table portion 321, the upper port of the described second hollow round table portion 321 is greater than lower port, an end face of the described second hollow circuit cylinder portion 322 and the upper port end face of the described second hollow round table portion join, and the scope of the inclined angle alpha of the described second hollow round table portion is 35 °～55 °.

First conducting terminal 11, pass first perforation of first collets 21, first metalwork 31, second perforation and second metalwork 32 of second collets 22, stand on the centre of conductive shell, and itself and first metalwork 31, first collets 21, second collets 22 form first cavity, with second metalwork 32, second collets 22, conductive shell 10 forms second cavity, described first conducting terminal, 11 top ends are provided with a conducting metal piece 111 that is used for fixing first conducting terminal 11 and second collets 32, the shape of described conducting metal piece can be for coniform, cylindric, the assembly of cylinder and circular cone, the maximum outside diameter of described conducting metal piece 111 is less than the minimum diameter of second metalwork 32, and the diameter of the vertical range of conductive shell top inwall less than second ball arrived in the center, top of described conducting metal piece 111.

First ball 41 rollably is placed in first cavity, and when ball switch was in vertical position, first ball contacted with first conducting terminal 11 with first metalwork 31 respectively; When being subjected to external force to influence, first ball disconnects the contact of first conducting terminal 11 or first metalwork 31 at least, and the quantity of first ball can be two, is respectively ball 411, ball 412.

Second ball 42 rollably is placed in second cavity, and when ball switch was in vertical position, second ball contacted with first conducting terminal 11 with second metalwork 32 respectively; When being subjected to external force to influence, first ball disconnects the contact of first conducting terminal 11 or second metalwork 32 at least, and the quantity of second ball can be two, is respectively ball 421, ball 422.

In addition, first metalwork 31, second metalwork 32, first conducting terminal 11 and first ball 41 (411,412), second ball 42 (421,422) are to make with electric conducting materials such as copper, steel, when the ball switch conducting, the track of contact point is to be the concentric circle.

During assembling, as shown in Figure 3, at first second ball 42 (421,422) is dropped into conductive shell 10 inside, then, first conducting terminal 11 is passed second perforation of second metalwork 32 and second collets 22, second metalwork 32 and second collets 22 are combined into one, utilize the taper metal derby 111 on the first conducting terminal top that the upper end of first conducting terminal is fixed, and described assembly put into conductive shell, and the center, top that guarantees taper metal derby 111 is to the vertical range of the conductive shell top inwall diameter less than second ball 42.Then, first ball 41 (411,412) is put into the below of conductive shell second collets.At last, first metalwork 31 and first collets 21 are combined into one, again first conducting terminal 11 is inserted first perforation of wearing first metalwork 31 and first collets 21, first metalwork 31 and first collets 21 that utilize instrument to be combined into one are fixed in the conductive shell, have finished assembling like this.

In second embodiment of the present utility model,, then second conducting terminal 12 is inserted the blind hole of first collets if use two conducting terminals.

Be the operation principle of example explanation ball switch with first ball below, second ball is the same with the first ball operation principle, does not do at this and gives unnecessary details.When ball switch is in vertical position, because first ball 41 (411,412) contacts with first metalwork 31 with first conducting terminal 11 respectively, be connected with conductive shell 10 owing to first metalwork 31 again, conductive shell 10 is connected with second conducting terminal 12, therefore, dumping switch is a closure state.When being subjected to external force to influence the ball switch inclination, because action of gravity, first ball 41 (411,412) breaks away from first conducting terminal 11, promptly roll laterally or directly leave first conducting terminal 11 along the inclination angle of first metalwork 31, in like manner, second ball breaks away from first conducting terminal, make ball switch be in can't conducting state.

Because ball switch of the present utility model is comprehensive angle (360 a degree) contact performance, no matter the external force influence of any angles such as vertical, level, inclination can produce high sharp switch motion rapidly.

Compared to existing technology, conductive shell is built-in with two metalworks, and two metalworks are got in touch conduction by ball and conducting terminal wherein respectively, and ball plays outage and energising effect by rolling.Be placed with two balls in conjunction with each layer again, therefore have only when 4 balls all roll the leaving water mean place, ball switch just disconnects.Fig. 4 shows the equivalent circuit diagram of the utility model preferred embodiment, as shown in the figure, two external connections are equivalent to two conducting terminals, 4 switches are equivalent to 4 balls, wherein, from bottom to top, first, second switch is corresponding to first ball 41 (411,412) in the present embodiment, three, the 4th switch is corresponding to second ball 42 (421,422) in the present embodiment, as shown in Figure 4, have only four switches to disconnect simultaneously, whole ball switch just disconnects, therefore can avoid interference the situation that vibrations disconnect switch, make that ball switch is stable more, better reliability.

Metal shell is connected with second conducting terminal, and two conducting terminals have and expose, and are convenient to install wiring.

When ball switch for example of the present utility model is used for landing light fixture, the ball switch and the light fixture that lands can be fixed on same horizontal line, and with land the power line of light fixture and be connected in series or control the Continuity signal of power line, therefore, when landing light fixture when toppled over by external force vibration, landing the power supply of light fixture can not conducting because of ball switch, and powered-down, the situation that bulb, fluorescent tube heat conduction furniture cause fire can not occur.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.

Claims

1. a ball switch comprises that tubular conductive shell, first ball, the conductive shell bottom end opening place of a bottom end opening is provided with first collets, first collets top is provided with first metalwork, and described first metalwork is connected with conductive shell, it is characterized in that,

Described first metalwork top is provided with second collets, second collets top is provided with second metalwork, described second metalwork is connected with conductive shell, described first metalwork, second metalwork are the hollow metal part of both ends open, and the minimum diameter of described first metalwork, second metalwork is greater than the maximum outside diameter of first conducting terminal, the center opposite position of described first collets and second collets is respectively equipped with first perforation and second perforation, and first conducting terminal passes through first perforation and second perforation;

Described first metalwork, described first collets, described second collets and described first conducting terminal form first cavity; Described second metalwork, described second collets, described conductive shell and described first conducting terminal form second cavity, and first ball rollably is placed in described first cavity, and second ball rollably is placed in described second cavity;

Ball switch is when the upright position, and described first ball contacts with described first metalwork with described first conducting terminal, and described second ball contacts with described second metalwork with described first conducting terminal; When being subjected to external force to influence, described first ball disconnects with described first conducting terminal or described first metalwork at least and contacting, and described second ball disconnects with described first conducting terminal or described second metalwork at least and contacting.

2. ball switch according to claim 1, it is characterized in that, form a blind hole on the sidewall of first collets that contact with described conductive shell, second conducting terminal passes described blind hole and connects in conductive shell, and described second conducting terminal extends to conduction shell nozzle direction.

3. ball switch according to claim 1 is characterized in that, described first metalwork comprises the first hollow round table portion of upper port greater than lower port; Described second metalwork comprises the second hollow round table portion of upper port greater than lower port.

4. ball switch according to claim 3 is characterized in that, described first metalwork comprises the first hollow circuit cylinder portion, and an end face of the described first hollow circuit cylinder portion and the upper port end face of the described first hollow round table portion join; Described second metalwork comprises the second hollow circuit cylinder portion, and an end face of the described second hollow circuit cylinder portion and the upper surface of the described second hollow round table portion join.

5. according to claim 3 or 4 described ball switchs, it is characterized in that the scope of the inclined angle alpha of described first hollow round table, second hollow round table is 35 °～55 °.

6. ball switch according to claim 1 is characterized in that, described first ball is two.

7. ball switch according to claim 1 is characterized in that, described second ball is two.

8. ball switch according to claim 1 is characterized in that, the described first conducting terminal top end is provided with a conducting metal piece, and the maximum outside diameter of described conducting metal piece is less than the minimum diameter of described second metalwork.

9. ball switch according to claim 8 is characterized in that, described conducting metal piece is coniform or columned metal derby, and the diameter of the vertical range of conductive shell top inwall less than second ball arrived in its center, top.