CN107507740B - A kind of improved relay structure - Google Patents

Abstract

The invention discloses a kind of improved relay structures, including shell, upper cover, control system, sliding block, terminal, steel ball, gap and screw, the control system is located in the inner cavity of the shell, the upper cover is fastened on the upper surface of described shell, the terminal extends out from the terminal taking out hole of the shell, the outside of the shell is placed on by once bending, the control system includes normally closed interlock, normally open contact, moving contact, armature, reset spring, iron core, coil and spring, wherein, the normally open contact can move up and down.Due to being touched after mutually being moved using normally open contact with moving contact, the safe distance between normally open contact and moving contact is increased indirectly, also ensures the absolute contact of reset state moving contact and normally closed interlock, allows the invention to safe and reliable operation.

Description

A kind of improved relay structure

Technical field

The present invention is related to relay construction field, especially with regard to it is a kind of with more safe and reliable control system after Electric appliance optimizes structure.

Background technique

Electromagnetic relay is a kind of electronic control device, it has control system (also known as input circuit) and by control system (also known as output loop), is usually applied in automatic control circuit, it is actually to go control larger current with lesser electric current One kind " automatic switch ".

Chinese patent CN102446659B discloses a kind of relay optimization structure, includes: an ontology has at least a pair of Locating piece and the opposite flank for being divided into the ontology, clip substrate when being provided with the ontology being placed in the mounting hole, and make this Body a part is located at the one side of the substrate, and a part is located at the another side of the substrate；And a plurality of terminals, it is to be divided into the ontology Above non-this is arranged locating piece another to side, makes the ontology clip after the substrate, these described terminals are inserted in described These connecting holes in, which optimizes mainly for the external structure of relay, so that relay is installed on electronics and sets Its plot ratio is significantly improved after standby and effectively reinforces the relay optimization structure of stability；The present invention is mainly in Chinese patent Its internal structure is optimized in the external structure that CN102446659B has possessed so that relay possess it is more stable Control system.

The reliability of relay directly influences the reliability of entire electric system, and electrical contact is the critical component of relay One of, performance is directly related to the electrical property of relay, and common relay is electromagnetic type current relay, is led by coil It is logical, make iron core that there is magnetism, to attract armature, mechanical device is driven to be closed normally open contact, normally closed interlock disconnects, if relay Device power-off makes moving contact set back in the case where restoring spring effect, and the normally open contact and normally closed interlock of common relay are quiet Contact, spring cause spring that can not reset to original position, cause moving contact because use for a long time will cause elastic fatigue Normally-closed contact cannot be effectively touched, What is more, because the spacing of normally open contact and moving contact is smaller, moving contact is in iron core When not acting on, normally open contact is touched, certain misunderstanding is caused to breakdown judge, when serious, entire electric system is caused to be paralysed, Cause unpredictable loss.

Therefore being badly in need of a kind of normally open contact and moving contact has absolute safe distance and can guarantee the dynamic touching on armature The improved relay structure that head is absolutely connect when resetting with normally closed interlock.

Summary of the invention

In view of this, the present invention, which provides a kind of normally open contact and moving contact, to be had absolute safe distance and can guarantee The improved relay structure that moving contact on armature is absolutely connect when resetting with normally closed interlock.

To achieve the above object, the invention provides the following technical scheme: a kind of improved relay structure, including shell, on Lid, control system, sliding block, terminal, steel ball, gap and screw, the control system are located in the inner cavity of the shell, it is described on Cover buckle extends out, after once bending together in the upper surface of described shell, the terminal from the terminal taking out hole of the shell It is placed in the outside of the shell, the control system includes normally closed interlock, normally open contact, moving contact, armature, reset spring, iron Core, coil and spring, wherein the normally open contact can move up and down.

Further, the shell is the rectangle shell of upper opening, and the shell includes a pair of of long slab, a pair of of short slab And bottom plate, the top of the long slab offer the first semicircle orifice, the bottom of first semicircle orifice is formed to inside cavities transition First a quarter rounded channels, the terminal taking out hole are located at the upper surface of the long slab, and the short slab is equipped with locating piece.

Further, the upper end both sides of the upper cover are symmetrically arranged with ear, and the upper cover is equipped with the cavity of lower end surface opening, The lower end surface of the upper cover and the cavity form shoulder block, and the left and right sides of the upper cover is equipped with mating surface, the mating surface position In the lower section of the ear, when the upper cover is fastened on the upper end of the shell, the ear is attached to the upper end of the shell Face, the mating surface are attached on the inner wall of the shell.

Further, the normally closed interlock is fixed on the upper wall of the cavity.

Further, the sliding block is the cuboid housing of lower openings, and the sliding block is placed in the lower part of the inner cavity, institute Sliding block is stated equipped with symmetrical second semicircle orifice, the top of second semicircle orifice forms the second a quarter to outer wall transition Rounded channels, the inner wall top of the sliding block are equipped with symmetrical clamp two, are equipped with sliding slot among the top shell of the sliding block, The both ends of the top shell of the sliding block are equipped with symmetrical threaded hole.

Further, the armature includes slide bar and pressing plate, and the slide bar is placed vertically, and the pressing plate is horizontal positioned, institute The bottom end linking of slide bar is stated in the centre of the pressing plate, the slide bar and the pressing plate are in inverted " t " word shape, a left side for the pressing plate Right both ends are symmetrically arranged with clamp one, and the top of the slide bar passes through the sliding slot and is connected among the bottom surface of the moving contact.

Further, it is reserved with gap between the inner wall of the shell and the outer wall of the sliding block, the described 1st/ The steel ball is placed in the cavity that one rounded channels and the second a quarter rounded channels are formed.

Further, one end of the spring is connected on the clamp one, and the other end is connected on the clamp two.

Further, the normally open contact is fixed by screws in the upper surface of the sliding block.

Further, when the coil does not turn on, the reset spring jacks up the armature, and the moving contact is connected normally closed Contact, at this point, the level height of the clamp one is higher than the level height of the clamp two, when the coil is in the conductive state When, the iron core attracts the armature by electromagnetic induction, and the pressing plate presses down on the reset spring, synchronously, described Slide bar moves down along the chute, and the slide bar drives the moving contact to move downward, when the level height of the clamp one is lower than When the level height of the clamp two, horizontal force Fx and straight up power Fy can be analyzed to along the elastic force F of the spring, vertically Upward power Fy pushes the sliding block to scroll up under the action of the steel ball, and the normally open contact, which follows, is moved upwardly until touching Touch the moving contact, the upper surface of the normally open contact is kept out on the shoulder block at this time, when the coil control circuit again When secondary disconnection, the magnetic of the iron core disappears, and the reset spring jacks up the armature upwards, when the level of the clamp one is high Degree is higher than when the level height of the clamp two, can be analyzed to horizontal force Fx and straight down along the elastic force F of the spring Power-Fy, under the action of the power-Fy straight down and gravity, the sliding block is scrolled down through, until the lower end surface of the sliding block It keeps out in the inner chamber bottom surface.

It can be seen from the above technical scheme that it is an advantage of the invention that changing spring by utilizing in armature operational process Direction, and then change the action direction of spring force so as to touch after moving toward one another between normally open contact and moving contact, Increase the safe distance between normally open contact and moving contact indirectly in this way, also because increased spring, so that armature is when resetting, Guarantee the absolute contact of moving contact and normally closed interlock, its function of the performance for keeping entire relay more safe and reliable.

Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention. Below with reference to figure, the present invention is described in further detail.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.In the accompanying drawings:

Fig. 1 is overall structure diagram of the invention.

Structural schematic diagram when Fig. 2 is control system of the present invention work.

Fig. 3 is shell cross-sectional view of the invention.

Fig. 4 is shell top view of the invention.

Fig. 5 is superstructure schematic diagram of the invention.

Fig. 6 is sliding block cross-sectional view of the invention.

Fig. 7 is armature structure schematic diagram of the invention.

Fig. 8 is force resolution figure when sliding block of the invention moves upwards on spring.

Fig. 9 is force resolution figure when sliding block of the invention moves downward on spring.

Figure 10 is the partial enlarged view of steel ball riding position of the invention.

In the figure, it is marked as shell -1, inner cavity -11, long slab -12, the first semicircle orifice -121, the first a quarter rounded channels - 1211, terminal taking out hole -122, short slab -13, locating piece -131, bottom plate -14, upper cover -2, ear -21, shoulder block -22, cavity - 23, mating surface -24, control system -3, normally closed interlock -31, normally open contact -32, upper surface -321, moving contact -33, armature -34, Slide bar -341, pressing plate -342, clamp one -3421, lower end surface -3422, reset spring -35, iron core -36, coil -37, spring - 38, sliding block -4, the second semicircle orifice -41, the second a quarter rounded channels -411, clamp two -42, sliding slot -43, threaded hole -44, end Sub -5, steel ball -6, gap -7, screw -8, elastic force-F, horizontal force-Fx, straight up power-Fy, straight down power -- Fy.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Referring to figs. 1 to Figure 10, a kind of improved relay structure as depicted in figs. 1 and 2, including shell 1, upper cover 2, control System 3, sliding block 4, terminal 5, steel ball 6, gap 7 and screw 8, control system 3 are located in the inner cavity 11 of shell 1, and upper cover 2 fastens In the upper surface of shell 1, terminal 5 extends out from the terminal taking out hole 122 of shell 1, is placed on shell 1 by once bending Outside, control system 3 include normally closed interlock 31, normally open contact 32, moving contact 33, armature 34, reset spring 35, iron core 36, line Circle 37 and spring 38, wherein normally open contact 32 can move up and down.

Preferably, control system 3 is the electromechanical assembly of Electromagnetic Control, and main function is presented as normally closed interlock 31 and function electricity Road series connection, normally open contact 32 connects with malfunction indicator lamp, once breaking down, moving contact 33 is disconnected with normally closed interlock 31, Moving contact 33 is connect with normally open contact 32, and it is bright that the actuating of relay is switched on malfunction indicator lamp, prompts operator or maintenance personal.

As shown in Figure 3 and Figure 4, shell 1 is the rectangle shell of upper opening, and shell 1 includes a pair of of long slab 12, a pair Short slab 13 and bottom plate 14, the top of long slab 12 offer the first semicircle orifice 121, and the bottom of the first semicircle orifice 121 is to inside cavities Transition forms the first a quarter rounded channels 1211, and terminal taking out hole 122 is located at the upper surface of long slab 12, and short slab 13 is equipped with fixed Position block 131.

As shown in figure 5, the upper end both sides of upper cover 2 are symmetrically arranged with ear 21, upper cover 2 is equipped with the cavity 23 of lower end surface opening, The lower end surface of upper cover 2 and cavity 23 form shoulder block 22, and the left and right sides of upper cover 2 is equipped with mating surface 24, and mating surface 24 is located at ear 21 lower section, when upper cover 2 is fastened on the upper end of shell 1, ear 21 is attached to the upper surface of shell 1, and mating surface 24 is attached to shell 1 Inner wall on.

As shown in Figure 2 and Figure 5, normally closed interlock 31 is fixed on the upper wall of cavity 23.

As shown in Fig. 2, Fig. 3 and Fig. 6, sliding block 4 is the cuboid housing of lower openings, and sliding block 4 is placed in the lower part of inner cavity 11, Sliding block 4 is equipped with symmetrical second semicircle orifice 41, and the top of the second semicircle orifice 41 forms the second a quarter to outer wall transition Rounded channels 411, the inner wall top of sliding block 4 are equipped with symmetrical clamp 2 42, are equipped with sliding slot among the top shell of sliding block 4 43, the both ends of the top shell of sliding block 4 are equipped with symmetrical threaded hole 44.

Preferably, to guarantee Electrical Safety, sliding block 4 is insulating materials, can be the plastic construction of injection molding.

As shown in Figure 2 and Figure 7, armature 34 includes slide bar 341 and pressing plate 342, and slide bar 341 is placed vertically, 342 water of pressing plate Placing flat, in the centre of pressing plate 342, slide bar 341 and pressing plate 342 are in inverted " t " word shape, pressing plate for the bottom end linking of slide bar 341 342 left and right ends are symmetrically arranged with clamp 1, and the top of slide bar 341 passes through sliding slot 43 and is connected in the bottom surface of moving contact 33 Between.

As shown in Fig. 1 and Figure 10, gap 7, the first a quarter are reserved between the inner wall of shell 1 and the outer wall of sliding block 4 Steel ball 6 is placed in the cavity that rounded channels 1211 and the second a quarter rounded channels 411 are formed.

Preferably, why gap 7 is set, is to prevent steel ball 6 opposite in the first semicircle orifice 121 and the second semicircle orifice 41 Parital vacuum or local excess pressure are generated in motion process and influence the operation of entire mechanical device.

As shown in Figure 2 and Figure 8, one end of spring 38 is connected on clamp 1, and the other end is connected on clamp 2 42.

Preferably, when spring 38 are installed, a small amount of high-viscosity oil should be smeared in clamp 1 and clamp 2 42, Lubricating action is not only acted as, installation can also be assisted to stablize.

As shown in Fig. 2, normally open contact 32 is fixed on the upper surface of sliding block 4 by screw 8.

As shown in Figure 1, reset spring 35 jacks up armature 34 when coil 37 does not turn on, moving contact 33 connects normally closed interlock 31, At this point, the level height of clamp 1 is higher than the level height of clamp 2 42；When coil 37 is in the conductive state, iron core 36 By electromagnetic induction attract armature 34, pressing plate 342 press down on reset spring 35, synchronously, slide bar 341 along the chute 43 downwards Mobile, slide bar 341 drives moving contact 33 to move downward, when the level height of clamp 1 is lower than the level height in clamp 2 42 When spending, as shown in figure 8, can be analyzed to horizontal force Fx and straight up power Fy along the elastic force F of spring 38, power Fy is pushed straight up Sliding block 4 scrolls up under the action of steel ball 6, and normally open contact 32, which follows, is moved upwardly until touching moving contact 33, normally opened at this time The upper surface 321 of contact 32 is kept out on shoulder block 22, and moving toward one another for normally open contact 32 and moving contact 33 increases two indirectly The distance between person, when 35 elastic fatigue of reset spring, the whereabouts of moving contact 33 is unlikely to run into normally open contact 32；When coil 37 Control circuit when being again off, the magnetic of iron core 36 disappears, and reset spring 35 jacks up armature 34 upwards, when clamp 1 Level height is higher than when the level height of clamp 2 42, as shown in figure 9, the elastic force F along spring 38 can be analyzed to horizontal force Fx Power-Fy straight down, under the action of power-Fy straight down and gravity, sliding block 4 is scrolled down through, until the lower end surface of sliding block 4 It keeps out in 11 bottom surface of inner cavity, moving contact 33 recloses normally closed interlock 31, and under the state, spring 38 is upward along the vertical direction The elastic force collective effect of elastic force and reset spring 35, enables moving contact 33 closely to connect normally closed interlock 31, makes operation electricity Road is more safe and reliable.

These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification, Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (9)

1. a kind of improved relay structure, including shell (1), upper cover (2), control system (3), sliding block (4), terminal (5), steel ball (6), gap (7) and screw (8), the control system (3) are located in the inner cavity (11) of the shell (1), upper cover (2) button Together in the upper surface of described shell (1), the terminal (5) extends out from the terminal taking out hole (122) of the shell (1), passes through Primary bending is placed on the outside of the shell (1), the control system (3) include normally closed interlock (31), normally open contact (32), Moving contact (33), armature (34), reset spring (35), iron core (36), coil (37) and spring (38), which is characterized in that described Normally open contact (32) can move up and down, and the normally open contact (32) is arranged on the sliding block (4), and the sliding block (4) is placed in The lower part of the inner cavity (11), the sliding block (4) are the cuboid housing of lower openings, and the inner wall top of the sliding block (4) is set There is symmetrical clamp two (42), the armature (34) is slidably matched with the sliding block (4), and moving contact (33) setting exists On the armature (34), the armature (34) includes slide bar (341) and pressing plate (342), and the slide bar (341) is placed vertically, institute It states pressing plate (342) to be horizontally arranged, the left and right ends of the pressing plate (342) are symmetrically arranged with clamp one (3421), the spring (38) One end be connected on the clamp one (3421), the other end is connected on the clamp two (42).

2. improved relay structure according to claim 1, which is characterized in that the shell (1) is the length of upper opening Square casing, the shell (1) include a pair of of long slab (12), a pair of of short slab (13) and bottom plate (14), the long slab (12) it is upper Portion offers the first semicircle orifice (121), and the bottom of first semicircle orifice (121) forms the one or four to inside cavities transition/ One rounded channels (1211), the terminal taking out hole (122) are located at the upper surface of the long slab (12), and the short slab (13) is equipped with Locating piece (131).

3. improved relay structure according to claim 2, which is characterized in that the upper end both sides of the upper cover (2) are symmetrical Equipped with ear (21), the upper cover (2) is equipped with the cavity (23) of lower end surface opening, the lower end surface of the upper cover (2) and the chamber Body (23) forms shoulder block (22), and the left and right sides of the upper cover (2) is equipped with mating surface (24), and the mating surface (24) is located at described The lower section of ear (21), when the upper cover (2) is fastened on the upper end of the shell (1), the ear (21) is attached to the shell The upper surface of body (1), the mating surface (24) are attached on the inner wall of the shell (1).

4. improved relay structure according to claim 2, which is characterized in that the normally closed interlock (31) is fixed on described On the upper wall of cavity (23).

5. improved relay structure according to claim 2, which is characterized in that the sliding block (4) is equipped with symmetrical The top of second semicircle orifice (41), second semicircle orifice (41) forms the second a quarter rounded channels (411) to outer wall transition, Sliding slot (43) are equipped among the top shell of the sliding block (4), the both ends of the top shell of the sliding block (4) are equipped with bilateral symmetry Threaded hole (44).

6. improved relay structure according to claim 5, which is characterized in that the linking of the bottom end of the slide bar (341) in The centre of the pressing plate (342), the slide bar (341) and the pressing plate (342) are in inverted " t " word shape, the slide bar (341) Top passes through the sliding slot (43) and is connected among the bottom surface of the moving contact (33).

7. improved relay structure according to claim 5, which is characterized in that the inner wall of the shell (1) and the cunning It is reserved between the outer wall of block (4) gap (7), the first a quarter rounded channels (1211) and the second a quarter ball The steel ball (6) are placed in the cavity that face slot (411) is formed.

8. improved relay structure according to claim 2, which is characterized in that the normally open contact (32) passes through screw (8) it is fixed on the upper surface of the sliding block (4).

9. improved relay structure according to claim 3, which is characterized in that described when the coil (37) does not turn on Reset spring (35) jacks up the armature (34), and the moving contact (33) connects normally closed interlock (31), at this point, the clamp one (3421) level height is higher than the level height of the clamp two (42), when the coil (37) is in the conductive state, institute Iron core (36) to be stated to attract the armature (34) by electromagnetic induction, the pressing plate (342) presses down on the reset spring (35), Synchronously, the slide bar (341) moves down along the chute (43), and the slide bar (341) drives the moving contact (33) to transport downwards It is dynamic, when the level height of the clamp one (3421) is lower than when the level height of the clamp two (42), along the spring (38) elastic force (F) can be analyzed to horizontal force (Fx) and straight up power (Fy), and power (Fy) pushes the sliding block (4) straight up It scrolls up under the action of the steel ball (6), the normally open contact (32), which follows, is moved upwardly until the touching moving contact (33), the upper surface (321) of the normally open contact (32) is kept out on the shoulder block (22) at this time, when the control of the coil (37) When circuit processed is again off, the magnetic of the iron core (36) disappears, and the reset spring (35) jacks up the armature (34) upwards, When the level height of the clamp one (3421) is higher than when the level height of the clamp two (42), along the spring (38) Elastic force (F) can be analyzed to horizontal force (Fx) and straight down power (- Fy), in the effect of the power straight down (- Fy) and gravity Under, the sliding block (4) scrolls down through, until the lower end surface of the sliding block (4) is kept out in the inner cavity (11) bottom surface.