A kind of plug-in strip
Technical field
The present invention relates to field of switches, specifically disclose a kind of plug-in strip.
Background technique
Plug-in strip is also known as disconnecting switch, is that one kind is mainly used for isolating power supply, grid switching operation and small to be connected to and cut off
The electrical component of current circuit.Existing plug-in strip includes porcelain bottom, Jiao Gai, the static contact being arranged on porcelain bottom and is used to and stationary contact
The moving contact of head contact.There is the handle for moving, pulling for manpower on moving contact;The moving contact of plug-in strip is using copper dynamic
Contact, and copper moving contact has the following problems:
1) the copper moving contact of existing plug-in strip is connected with static contact for a long time, is easy rust extremely, plug-in strip is caused to damage.Rust extremely refers to
Moving contact and static contact are connected each other because getting rusty and then make the irremovable state of moving contact.
2) usually because electric spark, high temperature, the reasons such as there was dampness in the air and aoxidize, the copper moving contact after oxidation will
The on-off accuracy and its service life of plug-in strip are influenced, and then increases cost.
In addition, stainless steel has the characteristics that conductive, corrosion resistant, but because stainless steel conductivity is low, it is not able to satisfy normal
Electricity consumption transmission demand, therefore no one uses stainless steel as the making material of contact.
Summary of the invention
It is an object of that present invention to provide a kind of plug-in strips, are connected for a long time with static contact with solving the copper moving contact of existing plug-in strip,
The problem of being easy rust extremely, plug-in strip caused to damage.
In order to achieve the above object, base case of the invention are as follows: a kind of plug-in strip, including porcelain bottom, handle are mounted on handle
On copper moving contact, the stainless steel moving contact being mounted on handle is mounted on porcelain bottom for for copper moving contact and stainless
The sliding rail of steel moving contact sliding, and installation can rotate with handle on the slide rail and move touching with copper moving contact or stainless steel respectively
The static contact of head contact;The stainless steel moving contact and copper moving contact connect side by side;The stainless steel moving contact and copper dynamic
Contact is in same plane;The stainless steel moving contact and copper moving contact are slided when handle is rotated along sliding rail.
The working principle of this base case is: when daytime, electricity consumption is big, and rotational handle is by copper moving contact and static contact
Contact, when night, electricity consumption is small, and rotational handle contacts stainless steel moving contact and static contact, copper dynamic in rotational handle switching
The position switching that copper moving contact is realized during contact and stainless steel moving contact, prevents copper moving contact for a long time incessantly
It is easily reacted with the steam in air with static contact contact and copper moving contact is caused to become rusty dead situation.
The beneficial effect of this base case is: early, evening switches copper moving contact and the dynamic touching of stainless steel by handle rotation
Head can effectively prevent static contact from contacting for a long time with copper moving contact or stainless steel moving contact and lead to dead situation of becoming rusty.It is stainless
Steel has the characteristics that conductive, corrosion resistant, it is extremely difficult to react with the steam in air, can effectively avoid getting rusty.Stainless steel
Although conductivity is lower than copper, it is impossible to meet the needs of normal charge transport, at night, the especially late into the night, need to pass
Defeated electricity is natively lower than normal charge transport, does the charge transport that plug-in strip moving contact is able to satisfy night using stainless steel.This
Invention utilizes the high conductivity of stainless steel good corrosion resistance and copper, forms the dynamic touching of synthesis that a day and night switching uses
Head, can not only effectively reduce copper moving contact uses the time, increases its service life, moreover it is possible to by switching this movement,
Make to avoid becoming rusty between moving contact and static contact dead situation.
Compared with prior art, this base case structure is simple, can effectively prevent copper moving contact and static contact from becoming rusty dead,
Meanwhile because stainless steel moving contact and copper moving contact link together side by side, directly pass through rotational handle during the energization
The switching of moving contact can be completed, therefore replaces stainless steel moving contact or copper moving contact, will not influence the electricity connected on plug-in strip
The normal operation of gas equipment.
It further, further include Jiao Gai, the glue covers the placing groove offered for placing copper moving contact;The placement
The elastic insulating material for preventing copper moving contact and contacting external air from aoxidizing is equipped in slot.Night rotational handle makes not
It becomes rusty steel moving contact and static contact contact, and copper moving contact is rotated into placing groove, can effectively prevent copper moving contact and outer
Boundary's air contacts and oxidation corrosion.
Further, the copper moving contact is equipped with tenon, and the stainless steel moving contact is equipped with the fourth of the twelve Earthly Branches, the copper moving contact
Pass through mortise-tenon joint between stainless steel moving contact.It is torn open by the way that the stainless steel moving contact of mortise-tenon joint and copper moving contact are separable
It unloads, the convenient replacement to stainless steel moving contact or copper moving contact.
Further, mounting groove is offered on the handle, is equipped in the mounting groove and is respectively intended to be clamped copper moving contact
With two Spring sheet clips of stainless steel moving contact.Being clamped by Spring sheet clip can be achieved handle and copper moving contact and stainless steel moving contact
It is detachable, when copper moving contact or stainless steel moving contact damage, after plug-in strip is powered off, it is copper dismounting and change can be carried out manually
Moving contact or stainless steel moving contact.
Further, it is connected in the mounting groove and is respectively intended to copper moving contact and stainless steel moving contact drawing in Spring sheet clip
In reset spring, the snap ring for connecting with copper moving contact or stainless steel moving contact is connected on the reset spring.
It is replacing stainless steel moving contact or when copper moving contact, is removing old stainless steel moving contact or copper moving contact, it will be new stainless
Steel moving contact or copper moving contact are connected with snap ring, and reset spring draws in the moving contact after replacement in Spring sheet clip, make the dynamic touching
Head can be connect with Spring sheet clip again.
Further, the porcelain bottom is equipped with microcontroller, and the motor for rotating with fixed handle is provided on the handle
And for detecting the photosensitive sensor on daytime or night;The photosensitive sensor is electrically connected with microcontroller;Microcontroller
According to photosensitive sensor transmitting come electric signal control motor band fixed handle rotate forward or invert.
When night, photosensitive sensor cannot sense light, and photosensitive sensor is generated without optical signal and will be unglazed at this time
Signal passes to microcontroller, and microcontroller control motor reversal rotates handle, so that stainless steel moving contact and quiet
Contact;When daytime, photosensitive sensor senses light, and light will be had by converting light signals into electric signal and being formed with optical signal
Signal passes to microcontroller, and microcontroller controls motor and rotates forward, and motor rotates forward so that handle rotates, so that copper dynamic touching
Head and static contact contact.Night on daytime is detected by photosensitive sensor, makes microcontroller control motor rotation, and then band is started
Copper moving contact and the sliding of stainless steel moving contact on handle and handle, complete two moving contacts in the switching of day and night.
Further, it is equipped in the placing groove and is used to the electromagnet of copper moving contact inspiration placing groove at night, it is described
Electromagnet is controlled by microcontroller.
When night, microcontroller controls electromagnet and is powered, and electromagnet generation will be in copper moving contact inspiration mounting groove
Copper moving contact is adsorbed onto placing groove by magnetic force, is prevented stainless steel moving contact from aoxidizing since lasting energization is heated, is also reduced
Copper moving contact is aoxidized because of electric spark, while the megohmite insulant in placing groove can completely cut off between copper moving contact and air
Contact, reduce the oxidation reaction of copper moving contact;When daytime, microcontroller controls electromagnet power-off, so that electromagnet loses
The adsorption capacity to copper moving contact is removed, so that copper moving contact automatically returns in Spring sheet clip under the pulling of reset spring.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of plug-in strip in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram at porcelain bottom in the embodiment of the present invention;
Fig. 3 is the structural schematic diagram of stainless steel moving contact and copper moving contact in the embodiment of the present invention;
Fig. 4 is the structural schematic diagram of handle in the embodiment of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: porcelain bottom 1, handle 2, stainless steel moving contact 3, copper moving contact 4, stationary contact
First 5, sliding rail 6, placing groove 7, machine shaft 8, electromagnet 9, tenon 10, the fourth of the twelve Earthly Branches 11, mounting groove 12, elastic slice 13, reset spring 14.
Embodiment
As depicted in figs. 1 and 2, a kind of plug-in strip includes: including porcelain bottom 1, Jiao Gai, handle 2 and the copper being mounted on handle 2
Matter moving contact 4 further includes the stainless steel moving contact 3 being mounted on handle 2, is mounted on porcelain bottom 1 for supplying copper 4 He of moving contact
Stainless steel moving contact 3 slide sliding rail 6, and be mounted on sliding rail 6 can with handle 2 rotate and respectively with copper moving contact 4 or
The static contact 5 that stainless steel moving contact 3 contacts;
As shown in figure 4, offering mounting groove 12 on handle 2, it is equipped in mounting groove 12 and is respectively intended to be clamped copper moving contact 4
It is pressed from both sides with two elastic slices 13 of stainless steel moving contact 3, each elastic slice 13 presss from both sides 13 " U "-shaped structure settings.
It is also connected in mounting groove 12 and is respectively intended to draw in copper moving contact 4 and stainless steel moving contact 3 in the folder of elastic slice 13
Reset spring 14, the snap ring for connecting with copper moving contact or stainless steel moving contact is connected on reset spring 14.
As shown in figure 3, copper moving contact 4 is equipped with tenon, stainless steel moving contact 3 is equipped with the fourth of the twelve Earthly Branches 11, copper moving contact 4 and not
Rust steel moving contact 3 is connected side by side by 10 fourth of the twelve Earthly Branches 11 of tenon;Stainless steel moving contact 3 and copper moving contact 4 are in same plane, and not
Rust steel moving contact 3 and copper moving contact 4 are slided when handle 2 is rotated along sliding rail 6.
Glue covers the placing groove 7 offered for placing copper moving contact 4;It is equipped in placing groove 7 copper dynamic for preventing
The elastic insulating material of contact 4 and contacting external air oxidation.The poly- edge material of elasticity can be elastic Cowhells rubber slab, can also be
The elastic insulating materials such as silicane rubber plate.
Porcelain bottom 1 is equipped with microcontroller, motor for rotating with fixed handle 2 is provided on handle 2 and for detecting
The photosensitive sensor on daytime or night;Photosensitive sensor is electrically connected with microcontroller;Microcontroller is passed according to photosensitive sensor
The electric signal control motor band fixed handle 2 come is passed to rotate forward or invert.Single-chip microcontroller, such as STM32 can be selected in microcontroller.
It is equipped with and is used to the electromagnet 9 of copper 4 inspiration placing groove 7 of moving contact at night in placing groove 7, electromagnet 9 is by micro-
Controller control.
When it is implemented, photosensitive sensor cannot sense light when night, photosensitive sensor generates unglazed letter at this time
Number and will pass to microcontroller without optical signal, microcontroller control motor reversal rotates handle 2, so that stainless steel
Moving contact 3 and static contact 5 contact, meanwhile, the microcontroller control electromagnet 9 for receiving no optical signal is powered, by mounting groove 12
Interior copper moving contact 4 is adsorbed onto placing groove 7, is prevented stainless steel moving contact 3 from aoxidizing since lasting energization is heated, is also reduced
Copper moving contact 4 is aoxidized because of electric spark;
When daytime, photosensitive sensor senses that light has optical signal, and will have optical signal to pass to microcontroller,
Control electromagnet 9 powers off after controller has received optical signal, so that electromagnet 9 loses the absorption to copper moving contact 4, so that
Copper moving contact 4 is automatically returned under the elastic acting force of reset spring 14 in mounting groove 12;Meanwhile microcontroller controls motor
Rotate forward, so on fixed handle 2 and handle 2 copper moving contact 4 and stainless steel moving contact 3 slide, complete two moving contacts and exist
The switching of day and night.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.