CN2906899Y

CN2906899Y - DC high voltage arc extinguishing relay

Info

Publication number: CN2906899Y
Application number: CN 200620081329
Authority: CN
Inventors: 孙迎光
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-03
Filing date: 2006-03-03
Publication date: 2007-05-30
Anticipated expiration: 2016-03-03

Abstract

The utility model provides a DC high-voltage arc-extinguishing relay for switching-on/off of high-voltage DC circuit. Based on the common relay member, the common contact is modified into a mercury switch, which is then sealed into a vacuum glass tube to switch on or off the contact through the rolling of mercury. Therefore, no electric arc will generate when high-voltage DC loop is switched off. As an alternative to complex and expensive DC high-voltage relay, the utility model has the advantages of simple construction, higher reliability and lower manufacturing cost.

Description

A kind of high direct voltage arc extinguishing relay

Technical field

The utility model designs a kind of high direct voltage arc extinguishing relay, is used to switch on and off the direct current loop of high voltage, belongs to the Electromechanical Control technical field.

Background technology

At present, known general relay can not be controlled the direct current loop of high voltage, because relay contact is when disconnecting the direct current loop of high voltage, relay contact will produce the electric arc that is difficult for extinguishing, until relay contact is burnt.Expensive special DC relay will be used in the direct current loop of control high voltage.

Summary of the invention

The utility model provides a kind of high direct voltage arc extinguishing relay, and it is on the basis of general relay mechanism, makes the contact of general relay into mercoid switch and forms.Because mercoid switch is sealed in the glass tube of vacuum, lean on the rolling of mercury to switch on and off the contact, therefore, it does not produce electric arc when disconnecting the direct current loop of high voltage.

The technical scheme that its technical problem that solves the utility model adopts is: on the basis of general relay mechanism, parts such as the coil of reservation relay, iron core, moving armature, support, spring, banking stop, binding post, base, the alloy contact of relay is removed, on moving armature,, with the moving armature tilt displacement mercury in the mercoid switch is rolled and be switched on or switched off the contact with the fixing mercoid switch of fixed support.

The beneficial effects of the utility model are: simple in structure because this high direct voltage arc extinguishing relay adopts general relay mechanism, and reliable operation, cheap for manufacturing cost, but its substitute structure complexity, the high direct voltage relay that involves great expense.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model structure and contact off-state schematic diagram.

Fig. 2 is the utility model structure and contacting view.

Among the figure, 1. mercoid switch, the 2. mercury in the mercoid switch, 3. the contact in the mercoid switch, 4. the contact connects flexible cord, and 5. the contact connects the flexible cord terminal, 6. moving armature banking stop, 7. moving armature, 8. mercoid switch mounting bracket, 9. iron core, 10. coil, 11. base, 12. moving armature supports, 13. springs.

Embodiment

In Fig. 1, the base (11) of this high direct voltage arc extinguishing relay has fixedly mounted coil (10), (9) unshakable in one's determination, moving armature banking stop (6), moving armature support (12) and spring (13), mercoid switch (1) is fixed on the moving armature (7) through mercoid switch mounting bracket (8), it is movable together that mercoid switch (1) is followed moving armature (7), moving armature banking stop (6), spring (13), moving armature support (12) is the resting position of moving armature (7) when coil (11) does not have electricity fixedly, the contact (3) that the contact connects in flexible cord (4) the connection mercoid switch is connected flexible cord terminal (5) with the contact, the contact connects flexible cord terminal (5) and is fixed on the moving armature banking stop (6).

In the embodiment shown in fig. 1, the coil (10) of this high direct voltage arc extinguishing relay is energising not, (9) unshakable in one's determination do not have magnetic field, moving armature (7) is not inhaled by (9) unshakable in one's determination, moving armature (7) is fixed on the position that moving armature (7) left end upwarps by spring (13), moving armature support (12) and moving armature banking stop (6), mercury in the mercoid switch (2) does not have contact (3) one ends in the mercoid switch in mercoid switch (1), at this moment the contact in the mercoid switch (3) are not connected, and this high direct voltage arc extinguishing relay is in off-state.

In the embodiment shown in Figure 2, coil (10) energising of this high direct voltage arc extinguishing relay, (9) unshakable in one's determination have magnetic field, moving armature (7) is inhaled by (9) unshakable in one's determination, the left end of moving armature (7) is had a downwarp, mercury in the mercoid switch (2) flows to contact (3) one ends that have in the mercoid switch in mercoid switch (1), at this moment the contact in the mercoid switch (3) are connected by the mercury in the mercoid switch (2), and this high direct voltage arc extinguishing relay is in on-state.

Claims

1, a kind of high direct voltage arc extinguishing relay, it is on the basis of general relay mechanism, the coil, iron core, moving armature, support, spring, banking stop, binding post, the base member that keep relay, it is characterized in that alloy contact is removed, on moving armature,, with the moving armature tilt displacement mercury in the mercoid switch is rolled and be switched on or switched off the contact with the fixing mercoid switch of fixed support.