Electromagnetic relay with button

Abstract

The utility model discloses an electromagnetic relay with a button, which comprises a shell, the button, and a contact part and a magnetic circuit part which are positioned in the shell, the shell is provided with a mounting groove, the button is movably arranged in the mounting groove, the button comprises a button main body and a driving part arranged on the button main body, and the driving part extends into the shell through the through hole to movably abut against the armature of the magnetic circuit part so as to connect or disconnect the contact part; an elastic part is integrally formed on the button body, and the bottom end of the elastic part abuts against the bottom wall of the installation groove so that the button can reset. According to the utility model, a compression spring does not need to be additionally arranged to reset the button, so that the number of parts is reduced, the material cost is reduced, the step of automatic feeding of the compression spring can be omitted when the automatic assembly is adopted, and the automatic assembly is more convenient to realize.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay technical field, especially a kind of electromagnetic relay with button. BACKGROUND

[0002] Electromagnetic relay is a kind of electronic control device, it is usually applied in automatic control circuit, it is actually used smaller current to control larger current a kind of " automatic switch ", so it plays the role of automatic regulation, safety protection, conversion circuit in circuit.

[0003] The electromagnetic relay of prior art has button, for the switch that whether the load end circuit of relay of commissioning personnel detects normal is used.Specifically, when button is pressed, its push armature of magnetic circuit part acts, makes armature and iron core attract, to make contact part close or open, when button is released, button is reset by compression spring effect.However, this electromagnetic relay has the following shortcomings: using compression spring reset, button and compression spring are the parts of each other, on the one hand, it increases the cost of parts, on the other hand, when using automation assembly, it is found that multiple compression spring parts are stacked together, so that compression spring is not easy to vibrate tray feeding, thereby causing this relay not to be convenient for using automation assembly. SUMMARY

[0004] The utility model provides a kind of electromagnetic relay with button for the technical problem existing in prior art, its make button self-elastic reset function, to facilitate cooperation automation assembly.

[0005] The technical scheme that the utility model solves its technical problems is as follows: a kind of electromagnetic relay with button, including shell, button and the contact part and magnetic circuit part in the shell;The shell is equipped with installation groove, the button is movably arranged in the installation groove, the button includes button main body and the driving portion arranged in the button main body, the driving portion is inserted into the shell by through-hole and is movably abutted with the armature of magnetic circuit part, to connect or disconnect the contact part;The button main body is integrally formed with elastic portion, the bottom end of the elastic portion is abutted on the bottom wall of the installation groove, to provide the reset of the button.

[0006] Further, the elastic portion includes a plurality of inclined bars, and the plurality of inclined bars are located at the outer periphery of the driving portion.

[0007] Further, the number of inclined bars is two, and the two inclined bars are located at opposite sides of the driving portion.

[0008] Further, the driving portion is a buffer rod capable of elastically deforming.

[0009] Further, the buffer rod is in C shape, or the buffer rod is provided with a long hole extending along the length direction of the buffer rod, and the buffer rod is provided with a buffer gap communicating with the long hole.

[0010] Further, the bottom end of the driving part is provided with a convex part for pushing the armature, and the surface of the convex part is provided with a convex hemispherical surface or a convex circular arc surface.

[0011] Further, the outer periphery of the mounting groove is provided with a plurality of reinforcing ribs to strengthen the strength of the bottom wall of the mounting groove.

[0012] Further, the plurality of reinforcing ribs are divided into two groups and located on the opposite sides of the outer periphery of the mounting groove.

[0013] Further, the shell comprises an upper shell and a lower shell, the upper shell is connected to the top of the lower shell, and the upper shell is provided with the mounting groove, the through hole comprises a first through hole provided on the bottom wall of the mounting groove and a second through hole provided on the top of the lower shell, and the first through hole and the second through hole are opposite to each other; the magnetic circuit part and the contact part are arranged in the lower shell; and the top of the lower shell is further provided with a supporting part for supporting the bottom wall of the mounting groove.

[0014] Further, the utility model further comprises a buckle which is reversibly connected in the mounting groove and cooperates with the button to push the button inward along the depth direction of the mounting groove when the buckle is pulled; and the bottom of the button body is provided with a supporting plate for supporting the buckle and abutting against the buckle.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The button body is integrally formed with the elastic part, the bottom end of the elastic part abuts against the bottom wall of the mounting groove to provide button reset, so that the utility model does not need to additionally set a compression spring to provide button reset, thereby not only reducing the number of parts and the material cost, but also enabling the utility model to save the step of automatically feeding the compression spring when automatically assembling, thereby being more convenient for automatic assembly.

[0017] 2. The elastic part comprises the plurality of inclined ribs, and is simple in structure and easy to process and form.

[0018] 3. The driving part is a buffer rod which can elastically deform, can buffer the pressure generated by the abutting extrusion of the armature, prevents the button from being damaged by breaking, and can ensure that the armature reliably contacts the core of the magnetic circuit part when the button is pressed, thereby ensuring the accuracy of the debugging result.

[0019] 4. The convex part on the bottom end of the driving part is used to push the armature, the surface of the convex part has a convex hemispherical surface or circular arc surface, so that the contact area of the driving part and the armature is small, thereby reducing the contact friction force between the driving part and the armature, reducing the wear of the button, reducing the generation of plastic chips, and ensuring the consistency of the contact position of the button and the armature.

[0020] 5. The outer periphery of the mounting groove is provided with a plurality of reinforcing ribs, so that the strength of the bottom wall of the mounting groove can be enhanced, thereby prolonging the service life of the product. The top of the lower shell is also provided with a supporting part which supports the bottom wall of the mounting groove, so that the strength of the bottom wall of the mounting groove can be further enhanced.

[0021] The utility model will be further explained in detail in combination with the drawings and embodiments; however, the electromagnetic relay with a button of the utility model is not limited to the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the utility model;

[0023] Figure 2 is a top view of the utility model;

[0024] Figure 3 is Figure 2 the A-A sectional view of

[0025] Figure 4 is Figure 2 the B-B sectional view of

[0026] Figure 5 is Figure 4 the enlarged view of the D part in

[0027] Figure 6 is a perspective view of the button of the utility model;

[0028] Figure 7 is the front view of the button of the utility model;

[0029] Figure 8 is the left view of the button of the utility model;

[0030] Figure 9 is a perspective view of the upper shell of the utility model Figure 1 ;

[0031] Figure 10 is a perspective view of the upper shell of the utility model Figure 2 ;

[0032] Figure 11 is a top view of the upper shell of the utility model;

[0033] Figure 12 is Figure 11E-E cross-sectional view of the;

[0034] Figure 13 is the three-dimensional structure schematic diagram of the lower shell of the utility model;

[0035] Figure 14 is Figure 2 C-C cross-sectional view of the;

[0036] Figure 15 is Figure 14 enlarged schematic view of the F part in the;

[0037] In the figure, 1, upper shell, 11, mounting groove, 111, bottom wall, 112, first through hole, 113, entrance part, 114, guide part, 115, stop part, 116, reinforcing rib, 2, lower shell, 21, support part, 22, second through hole, 3, button, 31, button main body, 32, bearing plate, 33, inclined rib, 34, buffer rod, 341, through hole, 342, buffer gap, 35, convex part, 4, buckle, 41, convex column, 5, magnetic circuit part, 51, armature, 52, iron core, 6, base, 7, push card, 8, restoring reed, 9, moving spring part, 10, static spring part. DETAILED DESCRIPTION

[0038] In the utility model, for the description, adopt "upper", "lower", "inner", "outer", "top / bottom end" and so on the direction or position relation of indication is based on the direction or position relation shown in the drawing, only for the convenience of describing the utility model, and it is not indicated or implied that the device must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the protection scope of the utility model. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] In addition, in the description of the utility model, unless otherwise specified, "multiple" refers to two or more than two. In the description of the utility model, unless otherwise specified and limited, the terms "set", "set", "connect" and the like should be understood broadly, for example, "connect", it can be fixedly connected, it can also be detachably connected, or integrally connected, it can be mechanically connected, it can also be electrically connected, it can be directly connected, it can also be indirectly connected through the intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Please see Figures 1-15As shown in the utility model discloses a kind of electromagnetic relay with button, including shell, button 3, and the contact portion and magnetic circuit portion 5 located in shell, shell is equipped with installation groove 11, button 3 is movably arranged in the installation groove 11. Shell specifically includes upper shell 1 and lower shell 2, upper shell 1 is connected at the top of lower shell 2, and upper shell 1 is equipped with above-mentioned installation groove 11, magnetic circuit portion 5 and contact portion are arranged in lower shell 2. Button 3 includes button main body 31 and the driving portion arranged in the button main body 31, the driving portion is inserted into lower shell 2 with armature 51 of magnetic circuit portion 5 by through hole and is movably abutted, to connect or disconnect contact portion. Button main body 31 is integrally formed with elastic portion, the bottom end of the elastic portion is abutted on the bottom wall 111 of installation groove 11, to provide button 3 reset. The through hole includes the first through hole 112 of the bottom wall 111 of installation groove and the second through hole 22 of the top of lower shell 2, and the first through hole 112 and the second through hole 22 are opposite.

[0041] As Figures 6-8 Shown, the elastic portion includes a plurality of inclined bars 33, the plurality of inclined bars 33 are distributed in the outer periphery of the driving portion, and the top end of each inclined bar 33 is integrally formed with the button main body 31, and the bottom end of each inclined bar 33 is respectively in contact with the bottom wall 111 of the installation groove 11. Specifically, the number of inclined bars 33 is two, the two inclined bars 33 are located on the opposite sides of the driving portion, and the distance between the top ends of the two inclined bars 33 is less than the distance between the bottom ends of the two inclined bars 33, that is, the two inclined bars 33 are substantially in the shape of an eight.

[0042] In this embodiment, the driving portion is a buffer rod 34 that can elastically deform. As Figures 6-8 Shown, the buffer rod 34 has an elongated through hole 341 extending along its length in the middle, and one side of the buffer rod 34 has a buffer notch 342 communicating with the through hole 341. Therefore, the buffer rod 34 is substantially in the shape of a C. In this way, when the bottom of the buffer rod 34 is in contact with the armature 51, the buffer rod 34 can deform by a certain amount, thereby relieving the pressure on the buffer rod 34, reducing the risk of breakage, and prolonging the service life of the button 3. In addition, the deformation of the buffer rod 34 also indirectly ensures reliable contact between the buffer rod 34 and the armature 51, ensuring that the function of the utility model for detecting circuit on-off meets the requirements.

[0043] As Figures 6-8 Shown, the bottom end of the driving portion (i.e. the buffer rod 34) is provided with a protrusion 35 for pushing the armature 51, and the surface of the protrusion 35 has an outward convex hemispherical surface, so that the buffer rod 34 and the armature 51 are in point-surface contact when they are in contact, with a very small contact area, thereby reducing the contact friction between them, reducing the wear of the button 3, reducing the generation of plastic debris, and also ensuring the consistency of the contact position between the button 3 and the armature 51. In other embodiments, the hemispherical surface can be replaced by a circular arc surface, so that the buffer rod 34 and the armature 51 are in line-surface contact when they are in contact, with a small contact area.

[0044] As Figures 9-12 shown, the outer four sides of the installation groove 11 are provided with a plurality of reinforcing ribs 116 to strengthen the strength of the bottom wall 111 of the installation groove 11. Specifically, the plurality of reinforcing ribs 116 are divided into two groups and distributed on the opposite sides of the installation groove 11, and each group includes two parallel reinforcing ribs 116, but is not limited to this. The top of the lower shell 2 is also provided with a plurality of support portions 21 which support the bottom wall 111 of the installation groove 11. The arrangement of the reinforcing ribs 116 and the support portions 21 is beneficial to further improve the strength of the bottom wall 111 of the installation groove 11.

[0045] The utility model also includes hasp 4 still includes hasp 4, this hasp 4 can be up and down overturningly connected in installation groove 11, and cooperate with button 3 to make when hasp 4 is outwardly pranked, button 3 is pushed in along the depth direction of installation groove 11. Specifically, the hasp 4 is U-shaped, which is sleeved on the button body 31, and the bottom of the button body 31 is provided with a supporting plate 32 which supports the hasp 4 and abuts against the hasp 4.

[0046] As Figure 14 , Figure 15 shown, the opposite sides of the hasp 4 are respectively provided with a convex column 41. As Figure 9 , Figure 11 , Figure 12 shown, the inner side of the installation groove 11 is provided with a mounting structure corresponding to each convex column 41, and the mounting structure includes an entry portion 113, a guide portion 114 and a stop portion 115 distributed in sequence. The convex column 41 enters the installation groove 11 from the entry portion 113 and reaches the stop portion 115 along the guide portion 114, so that the stop portion 115 limits the convex column 41 from exiting the installation groove 11.

[0047] The utility model also includes a base 6, and the magnetic circuit part 5 and the contact part are mounted on the base 6, and the bottom end of the lower shell 2 is connected to the base 6.

[0048] The electromagnetic relay with a button of the utility model, when the hasp 4 is upwardly pranked, the hasp 4 rotates around the two convex columns 41 as fulcrums, so that the supporting plate of the button 3 is abutted and extruded by the hasp 4 to move downward, the inclined rib 33 is compressed to elastically deform, the convex portion 35 at the bottom end of the buffer rod 34 contacts and pushes the armature 51, so that the armature 51 rotates, and one end of the armature 51 contacts the core of the magnetic circuit part 5, and the other end drives the moving spring part 9 of the contact part by pushing the card 7 to make the moving spring part 9 and the static spring part 10 of the contact part closed. When the hasp 4 is reset downward, the hasp 4 releases the button 3, the button 3 is reset upward under the restoring force of the inclined rib 33, so that the convex portion 35 at the bottom end of the buffer rod 34 is separated from the armature 51, the armature 51 is reset under the action of the restoring reed 8, and finally the moving spring part 9 and the static spring part 10 of the contact part are disconnected.

[0049] The electromagnetic relay with a button of the utility model, the button 3 is provided with a self-resetting function, so that the utility model does not need to additionally set a compression spring to provide the button 3 reset, thereby not only reducing the number of parts, reducing the material cost, but also enabling the utility model to save the step of automatic feeding of the compression spring when adopting automatic assembly, thereby being more convenient for realizing automatic assembly.

[0050] The electromagnetic relay with a button of the utility model, the non-involved parts (for example, the specific structure and working principle of the magnetic circuit part 5, the contact part and the like) are the same as the prior art or can be realized by using the prior art.

[0051] The above examples are only used to further illustrate the electromagnetic relay with a button of the utility model, but the utility model is not limited to the examples, and any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above examples all fall within the protection scope of the technical scheme of the utility model.

Claims

1. A push button electromagnetic relay comprising a housing, a push button, and a contact portion and a magnetic circuit portion located in the housing; the housing is provided with a mounting slot, the push button is movably arranged in the mounting slot, the push button comprises a push button body and a driving portion arranged on the push button body, the driving portion extends into the housing through a through hole and movably abuts against an armature of the magnetic circuit portion, so as to turn on or turn off the contact portion; characterized in that: The button body is integrally formed with an elastic portion, the bottom end of the elastic portion abutting against the bottom wall of the mounting groove to provide the button reset. ​ 2. The buttoned electromagnetic relay according to claim 1, characterized in that: The elastic portion comprises a plurality of inclined ribs, the plurality of inclined ribs are located at the outer periphery of the driving portion, the top end of each inclined rib is integrally formed with the button body, and the bottom end of each inclined rib abuts against the bottom wall of the mounting groove.

3. The buttoned electromagnetic relay of claim 2, wherein: The number of the inclined ribs is two, the two inclined ribs are located at opposite sides of the driving portion, and the interval between the top ends of the two inclined ribs is smaller than the interval between the bottom ends of the two inclined ribs.

4. The buttoned electromagnetic relay of claim 1, wherein: The driving portion is a buffer rod capable of elastically deforming.

5. The buttoned electromagnetic relay of claim 4, wherein: The buffer rod is in a C shape, or a long hole extending along the length direction of the buffer rod is arranged in the middle of the buffer rod, and a buffer gap is arranged on one side of the buffer rod and communicating with the long hole.

6. The electromagnetic relay with push button according to claim 1 or 4 or 5, characterized in that: The bottom end of the driving portion is provided with a protrusion for pushing the armature, the surface of the protrusion has a convex hemispherical surface or a convex circular arc surface.

7. The buttoned electromagnetic relay of claim 1, wherein: The outer periphery of the mounting groove is provided with a plurality of reinforcing ribs to strengthen the strength of the bottom wall of the mounting groove.

8. The buttoned electromagnetic relay of claim 7, wherein: The plurality of reinforcing ribs are divided into two groups and located at opposite sides of the outer periphery of the mounting groove.

9. The buttoned electromagnetic relay of claim 1, wherein: The shell comprises an upper shell and a lower shell, the upper shell is connected to the top of the lower shell, and the upper shell is provided with the mounting groove, the through hole comprises a first through hole arranged on the bottom wall of the mounting groove and a second through hole arranged on the top of the lower shell, the first through hole and the second through hole are opposite to each other, the magnetic circuit portion and the contact portion are arranged in the lower shell, and the top of the lower shell is further provided with a supporting portion supporting the bottom wall of the mounting groove.

10. The buttoned electromagnetic relay of claim 1, wherein: A buckle is further included, the buckle is reversibly connected in the mounting groove and cooperates with the button to push the button inward along the depth direction of the mounting groove when the buckle is pulled, and the bottom of the button body is provided with a supporting plate supporting the buckle and abutting against the buckle.

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