CN2393214Y

CN2393214Y - Double-knife double-throw multipoint switch

Info

Publication number: CN2393214Y
Application number: CN 99246869
Authority: CN
Inventors: 李兵
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-29
Filing date: 1999-10-29
Publication date: 2000-08-23
Anticipated expiration: 2009-10-29

Abstract

The utility model relates to a double-knife double-throw multipoint control switch which is an electric appliance switch installed in a circuit which is provided with an electric appliance load. A casing is provided with a switch body. The utility model is characterized in that the switch body is provided with six binding posts, wherein four binding posts which are arranged at both ends and are in a diagonal arrangement are separately communicated by two conducting wires, and two binding posts in the middle are respectively connected with a knife switch which can be connected with binding posts at both ends. The utility model has the advantage of simple and reasonable structure. A plurality of double-knife double-throw multipoint control switches can be installed according to the specific condition of a circuit. When any switch is wrenched, the on-off state of the electric appliance load can be changed.

Description

The dpdt double-pole double-throw (DPDT) multipoint control switch

The utility model relates to a kind of in the circuit of electric appliance load is housed, and can be a kind of dpdt double-pole double-throw (DPDT) multipoint control switch specifically from the appliance switch of any one its switch of Position Control two above positions.

Used switch generally is single-pole single-throw switch (SPST) or single-pole double-throw switch (SPDT) in the circuit of electric appliance load is housed.To open or close the electric appliance load in the circuit with single-pole single-throw switch (SPST), must operate to the fixed position that switch sets; To open or close the electric appliance load in the circuit with single-pole double-throw switch (SPDT), can on two positions, open arbitrarily and close at most.To open or close the electric appliance load in the circuit three or three above positions, just can not.

The utility model purpose is to solve the problems of the technologies described above, a kind of dpdt double-pole double-throw (DPDT) multipoint control switch is proposed, it is installed on the position that needs switch in the circuit that electric appliance load is housed,, just can changes the state that opens or closes of electric appliance load in the circuit as long as pull wherein any one switch.

The utility model purpose is realized by following technical scheme: this dpdt double-pole double-throw (DPDT) multipoint control switch, switch main body is housed in the enclosure, it is characterized in that being equipped with on the switch main body six contacts, wherein be positioned at four contacts at two ends, two pairs of contacts that become diagonal to arrange are connected with two leads respectively, and respectively being connected with on two middle contacts can be to the plug-in strip of two ends contacting.

Switch main body and top contact and plug-in strip thereof, or in parallel alternative with two single-pole double-throw switch (SPDT)s, or alternative with a double-point double-throw switch.Two pairs of contacts that its two ends become diagonal to arrange are connected with two leads respectively.

The utility model advantage is simple and reasonable for structure, as the case may be, in the circuit of electric appliance load is housed, according to concrete needs, installing dpdt double-pole double-throw (DPDT) multipoint control switch, as long as pull wherein any one dpdt double-pole double-throw (DPDT) multipoint control switch, just can change the state of opening and closing of electric appliance load, very easy to use.The utility model can be widely used in places such as stair, corridor, room, hall.

Embodiment of accompanying drawings:

Fig. 1 is that a kind of dpdt double-pole double-throw (DPDT) multipoint control switch cuts open part outer casing upper cover structural representation,

Fig. 2 is with four dpdt double-pole double-throw (DPDT) multipoint control switchs connection layout in circuit,

This dpdt double-pole double-throw (DPDT) multipoint control switch is equipped with switch main body 2 in shell 1, six contacts 3,4,5,6,7,8 are housed on the switch main body 2, wherein be positioned at four contacts at two ends, the two pairs of contacts 3 that become that diagonal arranges and 8,5 and 6 are equipped with two plug-in strips 10 that can be connected to both sides respectively respectively with 9 connections of two leads on the contact 4 and 7 of centre.In the connection layout of Fig. 2, K ₁, K ₂, K ₃And K ₄It is the utility model dpdt double-pole double-throw (DPDT) multipoint control switch.When plug-in strip 10 is pulled upward, contact 3,4,8 conductings, 7,6,5 conductings; When plug-in strip 10 is pulled downwards, contact 4,5,6 conductings, 7,8,3 conductings.User mode in circuit shown in Figure 2 is: the dpdt double-pole double-throw (DPDT) multipoint control switch is connected in the circuit, supposes plug-in strip K ₁, K ₂, K ₃, K ₄All pull downwards, with the contacting of below, because l ₀Be connected with power supply, so l ₀Charged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₁On contact 4,5,6 have; l ₁₁Electricity is arranged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₂On, there is electricity contact 4,5,6, l ₂₁Electricity is arranged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₃On, there is electricity contact 4,5,6, l ₃₁Electricity is arranged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₄On, there is electricity contact 4,5,6, l ₀₁Electricity is arranged, and circuit is connected, and electric light L is bright.If pull any one switch, promptly any one plug-in strip is pulled upward, for example with dpdt double-pole double-throw (DPDT) multipoint control switch K ₂Plug-in strip is pulled upward, K ₂In contact 5 and 4,7 and 8 break away from simultaneously, 4 and 3,7 and 6 connect simultaneously, 5 and 6 have lead to connect, owing to l ₁₁Electricity is arranged, and there is electricity contact 5,6,7, so l ₂Electricity is arranged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₃On, there is electricity contact 3,8,7, l ₃Electricity is arranged, dpdt double-pole double-throw (DPDT) multipoint control switch K ₄On, there is electricity contact 3,8,7, and 4 do not have electricity, l ₀₁Do not have electricity, lamp goes out, and has changed the state of opening and closing of electric appliance load in the circuit.If pull any one switch again, the on off state of electric appliance load can change again.Can realize the control of three or three above multipoint switches.

Claims

1, a kind of dpdt double-pole double-throw (DPDT) multipoint control switch, switch main body is housed in the enclosure, it is characterized in that being equipped with on the switch main body six contacts, wherein be positioned at four contacts at two ends, two pairs of contacts that become diagonal to arrange are connected with two leads respectively, respectively are connected with the plug-in strip that can be connected with two terminal contacts on two middle contacts.

2,, it is characterized in that switch main body and top contact and plug-in strip thereof, or substitute, or substitute with a double-point double-throw switch with two single-pole double-throw switch (SPDT)s are in parallel according to the described dpdt double-pole double-throw (DPDT) multipoint control switch of claim 1.