CN218996619U - Reed component side-plug guiding and anti-withdrawal structure and relay - Google Patents

Abstract

The utility model provides a reed component side-plug guiding and anti-withdrawal structure and a relay, wherein the reed component side-plug guiding and anti-withdrawal structure comprises a shell with a side opening, a reed laterally inserted into the shell through the side opening and a leading-out sheet connected to the reed, the direction of the reed inserted into the shell is defined as an insertion direction, an anti-withdrawal pit and a first guiding part parallel to the insertion direction are arranged on the outer side wall of the shell, and an anti-withdrawal protrusion bud and a second guiding part parallel to the insertion direction are arranged on the inner side wall of the leading-out sheet; the second guide part of the leading-out sheet is matched with the first guide part of the shell in a guiding way when the reed is inserted, and the anti-withdrawal protrusion bud is matched in the anti-withdrawal pit to realize limit when the reed is inserted in place. The stable assembly is achieved, the reed and the lead-out sheet are not easy to fall off, and the relay is stable in operation.

Description

Reed component side-plug guiding and anti-withdrawal structure and relay

Technical Field

The utility model relates to a relay, in particular to a reed assembly side-plug guiding and anti-withdrawal structure and a relay with the reed assembly side-plug guiding and anti-withdrawal structure.

Background

Existing relays generally include a housing, a magnetic circuit portion and a contact portion disposed within the housing; the magnetic circuit part and the contact part are arranged in an up-down distribution way, the contact part generally comprises a reed and a leading-out piece, the reed is a movable reed and a static reed, and a static contact is arranged on the reed; the leading-out sheet is connected with the reed and led out to the outside of the shell.

The magnetic circuit part and the contact part are distributed up and down, and some relays are limited by the pin positions of the reed, such as pins led out from the side edge of the shell and extend downwards; the reed can only be laterally inserted into one frame shell during assembly, namely the hollow frame shell is integrally connected with the shell, the shell is provided with a lateral opening, and the reed is laterally inserted into the shell through the lateral opening to realize assembly. But is prone to assembly out of place and easy removal, resulting in poor structural stability and even affecting operation. Meanwhile, after the shell is grooved (namely, laterally opened), the strength of the grooved position of the shell is weakened, and particularly the limiting strength in the up-down direction is reduced. The motion direction of the double parallel contact system is the up-down direction. Insufficient positioning and limiting strength will affect the positioning accuracy and limiting reliability of the contact system.

In addition, for the fixed of reed after inserting, the way in prior art sets up the fixed breach of intercommunication side direction opening on the casing, and the interference fit is in fixed breach after the reed inserts, so, leads to the reed deformation easily and makes the stationary contact position skew, and stability is poor.

Disclosure of Invention

Therefore, the utility model provides a reed component side-plug guiding and anti-withdrawal structure and a relay with the reed component side-plug guiding and anti-withdrawal structure; a stable assembly can be achieved.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the side-inserting guide and anti-withdrawing structure of the reed assembly comprises a shell with a lateral opening, a reed laterally inserted into the shell through the lateral opening and a drawing sheet connected to the reed, wherein the direction of the reed inserted into the shell is defined as an inserting direction; the second guide part of the leading-out sheet is matched with the first guide part of the shell in a guiding way when the reed is inserted, and the anti-withdrawal protrusion bud is matched in the anti-withdrawal pit to realize limit when the reed is inserted in place.

Further, the leading-out sheet is provided with two oppositely arranged side plates, the two side plates are clamped on two opposite outer side walls of the shell, and the inner side walls of the two side plates are respectively provided with an anti-withdrawal protrusion bud and a second guide part; the two opposite outer side walls of the shell are provided with anti-withdrawal pits and first guide parts.

Furthermore, a positioning notch communicated with the lateral opening is further formed in the shell, the extending direction of the positioning notch is parallel to the inserting direction, namely, the positioning notch extends from left to right, and the top plate of the leading-out sheet is further matched with the positioning notch in a positioning mode.

Further, a connecting convex part is laterally extended from the middle position of the top plate of the leading-out sheet, and the connecting convex part is in riveting fit with the riveting piece; the connecting convex part is arranged in a clearance with the side plates at the two sides.

Further, a limit notch is formed in the reed, and a limit boss assembled in the limit notch is protruded on the top plate of the leading-out sheet.

Further, the first guide part is a strip-shaped guide groove parallel to the insertion direction, the second guide part is a strip-shaped convex rib parallel to the insertion direction, and the lead-out sheet is matched in the strip-shaped guide groove of the shell to realize guide matching when the reed is inserted.

Further, the strip-shaped guide groove is formed by two parallel convex ribs.

Further, the elongated extending direction of the second guiding portion is defined as a length direction, the protruding direction is a height direction, a direction perpendicular to the length direction and the height direction is a width direction, and the second guiding portion is further protruded with at least two protruding portions along the width direction.

Further, the first guide portion is formed with a first inclined guide surface at an end portion near the lateral opening.

Further, a second inclined guide surface is formed at an end of the second guide portion.

Further, the anti-withdrawal pit is arranged close to the lateral opening, and a third inclined guide surface is formed between the anti-withdrawal pit and a port of the lateral opening.

Further, the anti-withdrawal protrusion is a spherical arc protrusion, and the anti-withdrawal pit is a spherical arc pit.

Furthermore, the leading-out sheet is also provided with glue injection holes.

Further, the anti-withdrawal protrusion bud and the glue injection hole are respectively positioned at two sides of the second guide part.

Further, a yielding platform of the yielding piece is sunken on the outer side wall of the shell, the anti-withdrawal pits and the first guide part are formed on the yielding platform, a limiting bump is protruded on the side wall perpendicular to the insertion direction of the yielding platform, and the yielding piece is abutted to the limiting bump when the reed is inserted in place.

A relay at least comprises the reed assembly side plug guiding and anti-withdrawal structure.

The technical scheme provided by the utility model has the following beneficial effects:

1. the second guide part of the leading-out sheet is matched with the first guide part of the shell in a guiding manner when the reed is inserted, so that accurate insertion is realized, the anti-withdrawal protrusion bud is matched in the anti-withdrawal pit to realize limit when the reed is inserted in place, stable assembly is realized, the reed and the leading-out sheet are not easy to deviate from, and the position deviation of a static contact caused by adopting a fixing mode of interference fit of the reed and a fixing notch in the prior art is avoided, so that the relay is stable in operation.

2. The shell is also provided with a positioning notch communicated with the lateral opening, the extending direction of the positioning notch is parallel to the inserting direction, namely, the positioning notch extends from left to right, and the top plate of the leading-out sheet is also matched with the positioning notch in a positioning way. Not only avoids the offset of the static contact caused by interference fit between the reed and the notch, but also plays a good role in positioning.

Drawings

FIG. 1 is a schematic view of a relay with a reed assembly side-entry guide and anti-back structure according to an embodiment;

FIG. 2 is a schematic diagram showing an internal structure of a relay according to an embodiment;

FIG. 3 is a schematic perspective view of a first embodiment of a housing;

FIG. 4 is a schematic perspective view of a second embodiment of a housing;

FIG. 5 shows a front view of the housing in an embodiment;

figure 6 is a front view of a reed assembly of the embodiment;

figure 7 is a schematic perspective view of a reed assembly according to one embodiment;

figure 8 is a second perspective view of the reed assembly of the embodiment;

figure 9 is a top view of a reed assembly according to an embodiment;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;

FIG. 11 is a schematic perspective view of an embodiment of an extraction tab;

FIG. 12 is a second perspective view of the lead-out tab of the embodiment;

FIG. 13 is a perspective view of a third embodiment of an exit tab;

fig. 14 is a bottom view of the lead-out tab in an embodiment.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

Referring to fig. 1 to 14, the present embodiment provides a side-insertion guiding and anti-withdrawing structure of a reed assembly, which includes a housing 10 having a lateral opening 101, a reed 31 laterally inserted into the housing 10 through the lateral opening 101, and an extraction piece 33 connected to the reed 31, wherein the reed 31 is a static reed or a movable reed, and a static contact 32 is provided on the reed 31. The direction in which the reed 31 is inserted into the housing 10 is defined as the insertion direction, and the insertion direction is from left to right as shown in fig. 1. Reed 31, stationary contact 32 and lead tab 33 constitute a reed assembly.

The outer side wall of the shell 10 is provided with an anti-withdrawal pit 12 and a first guide part 11 which is arranged parallel to the insertion direction, and the inner side wall of the lead-out sheet 33 is provided with an anti-withdrawal protrusion bud 42 and a second guide part 41 which is arranged parallel to the insertion direction; the second guiding part 41 of the leading-out piece 33 is matched with the first guiding part 11 of the shell 10 in a guiding way when the reed 31 is inserted, so that accurate insertion is realized; and the anti-withdrawal protrusion bud 42 is matched with the anti-withdrawal pit 12 to realize limit when the anti-withdrawal pit is inserted in place; the stable assembly is realized, the reed 31 and the leading-out piece 33 are not easy to deviate, and the position deviation of the static contact caused by adopting the fixed mode of interference fit of the reed and the fixed notch in the prior art is avoided, so that the relay operation is stable.

Specifically, the pull-out piece 33 has an inverted U-shaped structure, and includes two opposite side plates 332 and a top plate 331 connected with the two side plates 332, the top plate 331 is connected with the reed 31, specifically, the top plate 331, the reed 31 and the stationary contact 32 are directly riveted and fixed by a riveting piece 34, so that the assembly is simpler and more convenient. The two side plates 332 are arranged in a front-back opposite manner; the two side plates 332 are clamped on two opposite outer side walls of the housing 10, namely, two front and rear outer side walls. The inner side walls of the two side plates 332 are respectively provided with an anti-withdrawal protrusion bud 42 and a second guide part 41; the front and rear outer side walls of the housing 10 are provided with anti-withdrawal recesses 12 and first guide portions 11. So set up, sound construction.

More specifically, the reed 31 is provided with a limiting notch, the top plate 331 of the leading-out piece 33 is provided with a limiting boss 45 assembled in the limiting notch in a protruding manner, so that the relative displacement between the top plate 331 and the reed 31 caused by loosening of the riveting piece 34 is prevented, and the connecting structure is more stable.

A connecting protrusion 44 extends laterally from a central portion of the top plate 331 of the pull-out tab 33, and the connecting protrusion 44 is used for riveting with the rivet 34. The connection convex portion 44 is provided with a gap between the side plates 332 on both sides, and thus, the creepage distance between the two can be increased.

The shell 10 is further provided with a positioning notch 102 communicated with the lateral opening 101, the extending direction of the positioning notch 102 is parallel to the inserting direction, namely, the positioning notch extends from left to right, the top plate 331 of the lead-out sheet 33 is further positioned and matched in the positioning notch 102, so that the top plate 331 of the lead-out sheet 33 is supported and positioned, and the position of the stationary contact 32 can be supported and positioned. The fixing is realized by the cooperation of the anti-withdrawal protrusion bud 42 and the anti-withdrawal pit 12 between the leading-out sheet 33 and the shell 10; therefore, the positioning notch 102 and the top plate 331 of the drawing sheet 33 need only have a supporting and positioning function, and the positioning notch 102 and the top plate 331 of the drawing sheet 33 do not have an interference fit with each other. Under the condition that the notch structure at the position is kept unchanged, the interference fit of the reed and the notch is changed into the positioning assembly of the non-interference fit of the reed and the notch (such as transition fit or clearance fit), so that the offset of the static contact is avoided, and a good positioning effect is achieved.

Of course, in other embodiments, the anti-back-out protrusion 42 and the second guide portion 41 may be provided on one of the side plates 332 (e.g., the front side plate 332) of the pull-out piece 33, and the anti-back-out recess 12 and the first guide portion 11 may be provided on the front outer side wall of the housing 10; i.e. only one set of guiding and anti-back-out fits; or the structure of the tab is not limited thereto, and the like.

Specifically, in this embodiment, the first guiding portion 11 is a strip-shaped guiding groove parallel to the insertion direction, the second guiding portion 41 is a strip-shaped protruding rib parallel to the insertion direction, and the strip-shaped protruding rib of the guiding piece 33 is matched with the strip-shaped guiding groove of the housing 10 to achieve guiding matching when the reed 31 is inserted, so that the structure is simple, and the guiding effect is good. Of course, in other embodiments, the structures of the first guide portion 11 and the second guide portion 41 may be opposite, for example, the first guide portion 11 is a bar-shaped rib, the second guide portion 41 is a bar-shaped guide groove, or other guiding and matching manners, for example, guiding and matching manners of a guiding post and a guiding hole, or the like are adopted.

The strip-shaped guide groove is formed by two parallel ribs 111, and is easy to mold and prepare.

As shown in fig. 7, the elongated extending direction of the second guide portion 41 is defined as a longitudinal direction, that is, a left-right direction is a longitudinal direction, and the protruding direction is a height direction, that is, a front-rear direction is a height direction; the direction perpendicular to the length direction and the height direction is a width direction, that is, the up-down direction is a width direction, and the second guiding portion 41 further protrudes in the width direction with at least two protruding portions 411, in this embodiment, two protruding portions 411, and the two protruding portions 411 are protruding upwards; the protrusion 411 is provided to provide a pretensioning action to the engagement of the first guide portion 11 and the second guide portion 41, thereby preventing the pull-out piece 33 from rattling; the position of the stationary contact 32 is more accurate.

The first guide portion 11 is formed with a first inclined guide surface 13 at an end portion near the lateral opening 101; so arranged, at the initial stage of the contact of the lead-out piece 33 with the housing 10, the second guide portion 42 can smoothly transition to guide-fit with the first guide portion 11 under the guide action of the first inclined guide surface 13; effectively prevent the scraping scraps generated by scraping and bumping during assembly.

More specifically, the second inclined guiding surface 412 is formed at the end of the second guiding portion 41, and specifically, the reed 31 is inserted from left to right, so that the second inclined guiding surface 412 is disposed at the right end of the second guiding portion 41; the second inclined guide surface 412 is provided, and the second inclined guide surface 412 is engaged with the first inclined guide surface 13 at the initial stage of the contact of the lead-out piece 33 with the housing 10, thereby achieving a better guiding effect. Of course, in other embodiments, the second guide portion 41 may not be provided with the second inclined guide surface 412.

The anti-back-out recess 12 is disposed near the lateral opening 101, and a third inclined guide surface 14 is formed between the anti-back-out recess 12 and a port of the lateral opening 101. So configured, when the anti-back-out protrusion 42 contacts the housing 10, the anti-back-out protrusion 42 is directly guided by the third inclined guide surface 14 to cooperate with the anti-back-out pit 12, thereby realizing a smooth transition of the anti-back-out protrusion 42.

More specifically, the anti-loosening protrusion bud 42 is a spherical arc protrusion bud, and the anti-loosening pit 12 is a spherical arc pit. The spherical arc-shaped anti-withdrawal bud 42 enables smoother and more labor-saving matching with the third inclined guide surface 14. Of course, in other embodiments, the shapes of the anti-back-out protrusions 42 and the anti-back-out recesses 12 may be other shapes, such as cylindrical.

The leading-out piece 33 is also provided with a glue injection hole 43; the setting of this injecting glue hole 43, when accomplishing the insert assembly after, prevent moving back the bud 42 and cooperate in preventing moving back the pit 12 promptly, can carry out injecting glue in the injecting glue hole 43, glue can fill in the clearance between casing 10 and the leading-out piece 33, realizes bonding leading-out piece 33 and casing 10 after the glue solidification, and fixed effect is better.

Further preferably, the anti-loosening protrusion 42 and the glue injection hole 43 are respectively located at two sides of the second guiding portion 41, in this embodiment, the anti-loosening protrusion 42 is located at an upper side of the second guiding portion 41, the glue injection hole 43 is located at a lower side of the second guiding portion 41, the upper side is limited by the anti-loosening protrusion 42 and the anti-loosening pit 12, and the lower side is fixed by glue, so that the fixing effect is better and more sufficient.

Further preferably, the outer side wall of the housing 10 is recessed with a relief platform 15 of a relief pull-out tab 33 (specifically, a side plate 332 of the pull-out tab 33), the anti-withdrawal recess 12 and the first guide portion 11 are both formed on the relief platform 15, the relief platform 15 is raised with a limit bump 16 on a side wall perpendicular to the insertion direction, and the pull-out tab 33 abuts against the limit bump 16 when the reed 31 is inserted in place; so set up, the platform 15 of stepping down can step down the lead-out piece 33, makes the lead-out piece 33 can be parallel and level to the surface of casing 10, can reduce whole volume.

With continued reference to fig. 1 and 2, this embodiment further provides a relay, which at least includes the above-mentioned reed assembly side insertion guiding and anti-withdrawal structure.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (16)

1. The utility model provides a direction and anti-backing structure are inserted to reed subassembly side, includes the casing that has the side direction opening, inserts the reed in the casing and connect the drawing piece on the reed through side direction opening side direction, defines the direction that the reed inserted the casing as the direction of inserting, its characterized in that: the outer side wall of the shell is provided with an anti-withdrawal pit and a first guide part which is arranged parallel to the insertion direction, and the inner side wall of the leading-out sheet is provided with an anti-withdrawal protrusion bud and a second guide part which is arranged parallel to the insertion direction; the second guide part of the leading-out sheet is matched with the first guide part of the shell in a guiding way when the reed is inserted, and the anti-withdrawal protrusion bud is matched in the anti-withdrawal pit to realize limit when the reed is inserted in place.

2. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: the leading-out sheet is of an inverted U-shaped structure and comprises two oppositely arranged side plates and a top plate connected with the two side plates, the top plate is connected with the reed, the two side plates are clamped on two opposite outer side walls of the shell, and anti-withdrawing protrusions and second guide parts are arranged on the inner side walls of the two side plates; the two opposite outer side walls of the shell are provided with anti-withdrawal pits and first guide parts.

3. The reed assembly side-entry guide and anti-back structure of claim 2, wherein: the shell is also provided with a positioning notch communicated with the lateral opening, the extending direction of the positioning notch is parallel to the inserting direction, namely, the positioning notch extends from left to right, and the top plate of the leading-out sheet is also matched with the positioning notch in a positioning way.

4. The reed assembly side-entry guide and anti-back structure of claim 2, wherein: a connecting convex part is laterally extended from the middle position of the top plate of the leading-out sheet and is in riveting fit with the riveting piece; the connecting convex part is arranged in a clearance with the side plates at the two sides.

5. The reed assembly side-entry guide and anti-back structure of claim 2, wherein: the reed is provided with a limiting notch, and a limiting boss assembled in the limiting notch is protruded on the top plate of the leading-out sheet.

6. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: the first guide part is a strip-shaped guide groove parallel to the insertion direction, the second guide part is a strip-shaped convex rib parallel to the insertion direction, and the lead-out sheet is matched in the strip-shaped guide groove of the shell to realize guide matching when the reed is inserted.

7. The reed assembly side-entry guide and anti-back structure of claim 6, wherein: the strip-shaped guide groove is formed by two parallel convex ribs.

8. The reed assembly side-entry guide and anti-back structure of claim 6, wherein: the elongated extending direction of the second guiding portion is defined as a length direction, the protruding direction is a height direction, a direction perpendicular to the length direction and the height direction is a width direction, and the second guiding portion is further provided with at least two protruding portions protruding in the width direction.

9. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: the first guide portion is formed with a first inclined guide surface at an end portion near the lateral opening.

10. The reed assembly side-entry guide and anti-back structure according to claim 1 or 9, wherein: the end of the second guide part is provided with a second inclined guide surface.

11. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: the anti-withdrawal pit is arranged close to the lateral opening, and a third inclined guide surface is formed between the anti-withdrawal pit and a port of the lateral opening.

12. The reed assembly side-entry guide and anti-back structure according to claim 1 or 11, wherein: the anti-withdrawal protrusion bud is a spherical arc protrusion bud, and the anti-withdrawal pit is a spherical arc pit.

13. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: and the leading-out sheet is also provided with a glue injection hole.

14. The reed assembly side-entry guide and anti-back structure of claim 13, wherein: the anti-withdrawal protrusion bud and the glue injection hole are respectively positioned at two sides of the second guide part.

15. The reed assembly side-entry guide and anti-back structure of claim 1, wherein: the anti-withdrawal pit and the first guide part are formed on the yielding platform, a limit bump is protruded on the side wall perpendicular to the insertion direction of the yielding platform, and the leading-out sheet is abutted to the limit bump when the reed is inserted in place.

16. A relay, characterized in that: at least comprising a reed assembly side-insertion guide and anti-back structure as described in any one of claims 1 to 15.

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