Indicator board installation structure of relay

Abstract

The utility model discloses an indicator board installation structure of a relay, the inner wall of the shell of the relay protrudes to form two ribs, the lower ends of the two ribs are provided with limiting grooves with downward openings, an indicator board comprises a base body, the lower end of the base body is provided with a first rotating fulcrum, and the two ends of the first rotating fulcrum are movably matched with the two limiting grooves in the shell respectively. One side, close to the armature, of the base body extends to form two extension arms, each extension arm is provided with a second rotating fulcrum used for being rotationally connected with the movable spring part, and the top of the base body is provided with an indicating part; when the movable spring part of the relay acts, the indicator board swings relative to the base by taking the two second rotating fulcrums as the rotating center, and meanwhile, the two ends of the first rotating shaft are limited in the two limiting grooves to move up and down; and the indicating part is further driven to move to a position corresponding to an observation port on the shell of the relay so as to indicate the action state of the relay. The indicator board does not need to be installed on the base, thereby avoiding occupying the installation space on the base, and facilitating the miniaturization of the relay.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay field, concretely relates to a kind of indicating board mounting structure of relay. BACKGROUND

[0002] Electromagnetic relay is the switch device of high voltage, strong current circuit by the on-off of low voltage, weak current circuit, including base and shell that cooperate with each other, contact system and magnetic circuit system arranged on the base, and further including indicating board connected with the moving spring part in magnetic circuit system, indicating board is usually installed on base and linked with armature, armature act when driving indicating board relative to base rotation to change indicating state. Since most parts are installed on the base of relay, the size of base is large, and indicating board is extended to the lower of indicating window of shell by base, leading to the length of indicating board is larger, not conducive to the miniaturization of relay, therefore, consider to provide a new indicating board mounting structure, indicating board is not installed on base. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides an indicating board mounting structure of relay, which is beneficial to the compactness of the internal structure of the relay and miniaturization of the relay.

[0004] To achieve the above object, the utility model is realized by the following technical scheme:

[0005] An indicating board mounting structure of relay, the relay includes base and shell that cooperate with each other, contact system and magnetic circuit system arranged on the base, and further including indicating board connected with the moving spring part in magnetic circuit system, the contact system includes moving spring part, static spring part and arc separation sheet, the magnetic circuit system includes armature, permanent magnet, yoke and core, two ribs are formed on the inner wall of the shell of the relay, the lower end of the two ribs is provided with a limit slot with downward opening, the indicating board includes base body, the lower end of the base body is provided with first rotation fulcrum, the two ends of the first rotation fulcrum are movably matched with the two limit slots on the shell, two extension arms are extended from the side of the base body close to the armature, each extension arm is provided with second rotation fulcrum for rotationally connecting with the moving spring part, and the top of the base body is provided with indicating part;When the moving spring part of the relay acts, the indicating board swings relative to the base with the two second rotation fulcrums as rotation center, and the two ends of the first rotation shaft are limited in the two limit slots and move up and down, to drive the indicating part to move to the position corresponding to the observation port on the shell of the relay to indicate the action state of the relay.

[0006] Further, the moving spring part comprises a plurality of moving spring pieces and a moving spring support for fixing the plurality of moving spring pieces, the moving spring support is fixed on the armature, the moving spring support comprises a first plastic piece and a second plastic piece, the first plastic piece and the second plastic piece combine to form two rotating holes, and the two second rotating fulcrums are respectively inserted into the two rotating holes.

[0007] Further, the base body extends a support part towards the armature, the top surface of the arc separation piece is provided with a positioning groove, the support part is placed on the arc separation piece and is limited by the positioning groove, and the arc separation piece supports the support part.

[0008] Further, a plurality of lightening holes are arranged on the base plate.

[0009] Further, the opening position of the limiting groove is provided with a chamfer for guiding the insertion of the first rotating shaft.

[0010] The utility model has the following beneficial effects:

[0011] The indication plate mounting structure of the relay of the utility model, the indication plate is linked with the moving spring part, limiting grooves are arranged on the inner side of the shell to limit the action of the indication plate and avoid the indication plate from falling, and the indication plate is a certain distance away from the base, so that the length of the indication plate is reduced. The indication plate does not need to be mounted on the base, so that the mounting space on the base is avoided, and the base is miniaturized. The indication plate mounting structure is beneficial to the compact structure of the relay. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic view of the indication plate of the embodiment of the utility model;

[0013] Figure 2 It is another angle view of the indication plate of Figure 1

[0014] Figure 3 It is the front view of the relay of the utility model embodiment removing the shell;

[0015] Figure 4 It is the perspective view of the relay of Figure 3

[0016] Figure 5 It is the exploded view of the relay of the utility model embodiment;

[0017] Figure 6 It is another exploded view of the relay of the utility model embodiment. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and embodiments.

[0019] ​​In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0020] As shown in Figures 1 to 6 A relay, including the base 1 and the shell 2 that cooperate with each other, the contact system and the magnetic circuit system arranged on the base 1, and the indication plate 6 connected with the moving spring part in the magnetic circuit system, the magnetic circuit system includes the armature 3, the permanent magnet, the yoke and the core and other components, the contact system includes the moving spring part, the static spring part and the arc separation piece 7; this is the conventional configuration in the art, and will not be described here.

[0021] The embodiment provides a kind of indication plate 6 installation structure of relay, the inner wall of the shell 2 of relay is formed with two ribs 4, the lower end of two ribs 4 is equipped with the limit slot 5 with opening downwards, indication plate 6 includes base body 61, base body 61 lower end is equipped with first pivot 62, the two ends of first pivot 62 are respectively with the two limit slots 5 on shell 2 movable cooperation, that is, the two ends of first pivot 62 are respectively placed in two limit slots 5 from below to above.Limit slot 5 has a certain depth, avoid first pivot 62 from sliding out of limit slot 5 when moving.The limit slot 5 is located in the middle lower position of shell 2, and still has a certain distance with base 1, compared with indication plate 6 installed on base 1, the length of indication plate 6 is reduced in this scheme, to facilitate the miniaturization of indication plate 6, and indication plate 6 occupies the space between the inner wall of shell 2 and moving spring part, the part corresponding to the lower part of indication plate 6 on base 1 is used to install arc separation piece 7.

[0022] Base body 61 extends two extension arms 63 near one side of armature 3, second pivot 64 for being rotatably connected with moving spring part is equipped on each extension arm 63, and indication part 66 is arranged on the top of base body 61;When the moving spring part of relay acts, indication plate 6 swings relative to base 1 with two second pivots 64 as rotation center, while the two ends of first pivot 62 are limited in two limit slots 5 and move up and down, to drive indication part 66 to move to the position corresponding to indication window on the shell 2 of relay to indicate the action state of relay.

[0023] The moving spring part comprises a plurality of moving spring pieces and a moving spring support for fixing the plurality of moving spring pieces, the moving spring support is fixed on the armature 3 by riveting, welding or the like, the moving spring support comprises a first plastic piece 8 and a second plastic piece 9, the first plastic piece 8 and the second plastic piece 9 are combined to form two rotating holes 10, two second rotating shafts 64 are respectively inserted into the two rotating holes 10, and the indication function is realized by driving the indication plate 6 to move through the action of the armature 3.

[0024] In a specific structure, the first plastic piece 8 extends two first side plates 81, the second plastic piece 9 extends two second side plates 91 corresponding to the positions of the two first side plates 81, the first side plates 81 and the second side plates 91 are both provided with a stepped structure, the stepped structure on the first side plates 81 and the stepped structure on the second side plates 91 are combined to form the rotating holes 10. The two extension arms 63 of the indication plate 6 are located between the two first side plates 81, the two first side plates 81 are respectively in contact with the outer side surfaces of the two extension arms 63 to limit the indication plate 6, avoiding the indication plate 6 moving along the axial direction of the first rotating shaft 62, ensuring that the indication plate 6 can swing relative to the base 1 but cannot move horizontally, avoiding the indication plate 6 being displaced to misalign with the indication window.

[0025] The base 61 extends a support part 65 towards the side of the armature 3, the top surface of the arc separation piece 7 is provided with a positioning groove 71, the support part 65 is placed on the arc separation piece 7 and is limited by the positioning groove 71, the arc separation piece 7 supports the support part 65, so as to reduce the influence of the weight of the indication plate 6 on the rotation of the indication plate 6. In addition, in order to reduce the weight of the indication plate 6, a plurality of lightening holes 67 are arranged on the base plate.

[0026] In order to facilitate the first rotating shaft 62 being fitted into the limiting groove 5, the opening position of the limiting groove 5 is provided with a chamfer 51 to guide the insertion of the first rotating shaft 62.

[0027] The above description is only used to illustrate the technical scheme of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the present application, therefore, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

Claims

1. An indicating plate mounting structure of a relay, the relay comprising a base and a housing which cooperate with each other, a contact system and a magnetic circuit system arranged on the base, and further comprising an indicating plate connected with a moving spring part in the magnetic circuit system, the contact system comprising the moving spring part, a stationary spring part and an arc separation sheet, and the magnetic circuit system comprising an armature, a permanent magnet, a yoke and a core, characterized in that: two ribs are protrudedly formed on an inner wall of the housing of the relay, and lower ends of the two ribs are provided with limit grooves which are downwardly open, the indicating plate comprises a base body, a first rotating pivot is arranged at a lower end of the base body, two ends of the first rotating pivot are movably matched with the two limit grooves on the housing respectively, two extension arms are extended from a side of the base body close to the armature, a second rotating pivot for rotationally connecting with the moving spring part is arranged on each of the two extension arms, and an indicating part is arranged on a top of the base body; when the moving spring part of the relay is actuated, the indicating plate swings relative to the base body with the two second rotating pivots as the rotating centers, and the two ends of the first rotating pivot are limited to move up and down in the two limit grooves, thereby driving the indicating part to move to a position corresponding to a viewing port on the housing of the relay to indicate an actuation state of the relay. The moving spring part comprises a plurality of moving spring sheets and a moving spring support for fixing the plurality of moving spring sheets, the moving spring support is fixed on the armature, the moving spring support comprises a first plastic piece and a second plastic piece, the first plastic piece and the second plastic piece are combined to form two rotating holes, and the two second rotating pivots are inserted into the two rotating holes respectively.

2. The indicating board mounting structure of the relay according to claim 1, characterized by A supporting part is extended from the side of the base body close to the armature, the arc separation sheet is located between the indicating plate and the base, a positioning groove is arranged on a top surface of the arc separation sheet, the supporting part is placed on the arc separation sheet and is limited by the positioning groove, and the arc separation sheet supports the supporting part.

3. The indicating board mounting structure of the relay according to claim 2, characterized by A plurality of lightening holes are arranged on the base.

4. The indicating board mounting structure of the relay according to claim 1, characterized by A chamfer is arranged at an opening position of the limit groove to guide the insertion of the first rotating pivot.

5. The indicating board mounting structure of the relay according to claim 1, characterized by ​

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