Yoke part and supporting piece matching structure, relay and device with relay

Abstract

The utility model discloses a matching structure of a yoke component and a supporting piece, a relay and a device with the relay, the matching structure comprises the supporting piece and the yoke component of the relay, a cavity is formed in the yoke component, and a coil assembly is arranged in the cavity; a convex part is arranged between one side, far away from a contact assembly of the relay, of the yoke iron part in the axial direction of the coil assembly and the supporting piece, the convex part is arranged on the yoke iron part, or the convex part is arranged on the supporting piece, and the yoke iron part is provided with a concave part corresponding to the convex part. According to the utility model, the height tolerance between the upper surface and the lower surface of the yoke part can be reduced by using the convex part, so that the overall height tolerance between the upper surface of the static contact of the relay and the lower surface of the mounting part can be reduced, and the mounting effect of a client is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay technology field especially is a yoke iron part and support cooperation structure and relay and device with relay. BACKGROUND

[0002] Relay is an electronic control device, it has control system (also called input loop) and controlled system (also called output loop), usually applied to automatic control circuit, it actually is with smaller current to control larger current a kind of " automatic switch ". Therefore, it plays the role of automatic regulation, safety protection, conversion circuit in circuit. High-voltage direct-current relay is one of relays. A kind of high-voltage direct-current relay of prior art includes shell, yoke iron part and coil assembly, coil assembly includes coil, coil holder, dynamic iron core, static iron core etc. are provided in coil holder, these components are all installed in the cavity formed by yoke iron part, insulating cover is arranged above yoke iron part, static contact is arranged at the top of insulating cover, dynamic contact piece that cooperates with static contact is arranged in insulating cover, dynamic contact piece is connected dynamic iron core by push rod assembly. However, the part tolerance of high-voltage direct-current relay of prior art is large, it is easy to appear misplacement when installing at customer end (especially when installing copper bar), to affect installation effect, even cause failure. SUMMARY

[0003] The utility model provides a yoke iron part and support cooperation structure and relay and device with relay for the technical problem of prior art, and its part tolerance of relay is reduced by structural improvement, and the influence that it is easy to appear misplacement when installing at customer end is caused.

[0004] The utility model discloses a yoke iron part and support cooperation structure, including support and the yoke iron part of relay, the yoke iron part forms cavity, and the cavity is used for setting the coil assembly of relay;The convex part between the side of the coil assembly of the yoke iron part and the contact assembly of relay in the axial direction of the coil assembly has support, the convex part is located at the yoke iron part, or the convex part is located at the support, and the yoke iron part is equipped with the recess corresponding the convex part.

[0005] In a preferred embodiment, the convex part is located in the yoke iron part and is in contact with the support, or the convex part is located in the support and is in contact with the recess.

[0006] In a preferred embodiment, the convex part is provided as a plurality of convex parts, and the plurality of convex parts are distributed on the outer bottom surface of the yoke iron part.

[0007] In a preferred embodiment, the convex part is provided as at least three convex parts, and the at least three convex parts are distributed in a triangular or polygonal shape.

[0008] In a preferred embodiment, the protrusion is a convex structure.

[0009] In a preferred embodiment, the yoke component comprises a yoke plate and a yoke body, the yoke body comprising a bottom wall and a side wall extending upwardly from the edge of the bottom wall, the yoke plate being arranged at the top end of the side wall of the yoke body and enclosing the cavity together with the yoke body, and the protrusion being arranged on the yoke body and protruding from the bottom surface of the bottom wall of the yoke body.

[0010] In a preferred embodiment, the yoke body is a yoke cylinder, or the yoke body is in a U shape.

[0011] In a preferred embodiment, the support is provided with a groove corresponding to the protrusion, the depth of the groove being less than the protruding amount of the protrusion relative to the outer bottom surface of the yoke component, and the protrusion being arranged on the groove bottom surface.

[0012] In a preferred embodiment, the shape and / or the peripheral size of the groove are adapted to the protrusion.

[0013] In a preferred embodiment, the support is a housing of a relay, or the support is a housing of a non-relay and used for supporting the relay.

[0014] The utility model further provides a kind of relay, including coil assembly and contact assembly, further include the yoke component and support cooperation structure described in above-mentioned utility model, the support is the housing of relay, the coil assembly is arranged in the cavity of the yoke component, the contact assembly is located outside the cavity, and is located the side of the coil assembly in the axial direction direction away from the protrusion.

[0015] In a preferred embodiment, further comprising an insulating cover, which is arranged in the housing and located on the side of the yoke component away from the protrusion;The contact assembly comprises a plurality of static contacts and moving contact pieces, each static contact is respectively arranged in the insulating cover, and the moving contact piece is arranged in the insulating cover and cooperates with the moving iron core arranged in the coil assembly through the push rod component.

[0016] The utility model further provides a kind of device with relay, including support and relay, the support is the housing of the device, and the relay includes yoke component, and the cooperation structure of support and yoke component uses the yoke component and housing cooperation structure of relay described in above-mentioned utility model.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The yoke part of the utility model is away from the side of the contact assembly of the relay between the support piece in the axial direction of the coil assembly, and has a convex part, and the convex part is arranged on the yoke part, or the convex part is arranged on the support piece, and the yoke part is provided with a recess corresponding to the convex part, so that the utility model can reduce the height tolerance of the upper and lower surfaces of the yoke part by using the convex part or the cooperation of the convex part and the recess, thereby the overall height tolerance between the upper surface of the static contact and the lower surface of the mounting part can be reduced, and the effect during the installation of the client can be improved, especially when the copper bar is installed, the conductivity of the copper bar and the static contact can be improved, the contact resistance is reduced, the temperature rise is reduced, the installation stress of the static contact can be reduced, and the risk of rupture and air leakage at the connection between the static contact and the insulating cover is reduced.

[0019] 2. The convex parts are arranged at intervals on the outer bottom surface of the yoke part, which can improve the stability of the convex part support and make the cross-sectional area of each convex part smaller, thereby the height of the convex part is more easily controlled.

[0020] 3. The inner bottom surface of the shell is provided with a recess corresponding to the convex part, and the convex part is arranged on the groove bottom surface of the recess, so that the utility model can realize the cooperation of the convex part and the inner bottom surface of the shell by using the recess, thereby the size precision is more easily controlled, and the influence of the thickness tolerance of the bottom of the shell is reduced.

[0021] The utility model will be further described in detail in combination with the drawings and examples; but the yoke part and support piece cooperation structure of the utility model and the relay and the device with the relay are not limited to the examples. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the top view of the utility model;

[0023] Figure 2 It is Figure 1 A-A sectional view of the;

[0024] Figure 3 It is Figure 1 B-B sectional view of the;

[0025] Figure 4 It is Figure 3 the enlarged schematic view of C part in;

[0026] Figure 5 It is the three-dimensional structure schematic of the yoke body of the utility model Figure 1 ;

[0027] Figure 6 It is the three-dimensional structure schematic of the yoke body of the utility model Figure 2 ;

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

[0029] Figure 8 is the plan view of the yoke body of the utility model;

[0030] Figure 9 is Figure 8 D-D section view of the utility model;

[0031] Figure 10 is the three-dimensional structure schematic view of the shell of the utility model;

[0032] In the figure, 1, lower shell;11, groove;12, mounting portion;2, yoke body;21, convex portion;22, recessed portion;3, yoke plate;4, coil assembly;41, coil holder;42, coil;43, moving iron core;44, static iron core;5, inner support cover;6, static contact;7, moving contact;8, push rod component;9, frame piece;10, upper cover. DETAILED DESCRIPTION

[0033] In the description of the utility model, unless otherwise specified, "multiple" refers to two or more than two. "And / or", the association relationship of the associated object, indicates that there can be three kinds of relationships, for example, A and / or B, can indicate: A exists alone, A and B exist simultaneously, B exists alone. The character " / " generally indicates that the front and rear associated objects are a kind of "or" relationship.

[0034] For the description, the orientation or position relationship indicated by "upper", "lower", "inner", "outer", "top / bottom" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model, and is not indicative or suggestive of the device referred to must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the protection scope of the utility model. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Please refer to Figures 1-10 As shown in the utility model discloses a yoke part and support piece cooperation structure, including support piece and the yoke part of relay, the yoke part is formed with cavity, the coil assembly 4 for setting relay in the cavity. The yoke part is away from the contact assembly of relay on the axial direction of coil assembly 4 between the side and support piece and has convex portion 21, the convex portion 21 is arranged on the yoke part, or, the convex portion is arranged on the support piece, and the yoke part is provided with recess on the corresponding convex portion. Therefore, the yoke part support piece of the utility model is separated by convex portion, so that the yoke part does not need to contact with support piece on the whole outer surface.

[0036] In the embodiment, the protrusions 21 are arranged on the yoke member and are in contact with the support. In other embodiments, the protrusions are arranged on the support and are in contact with the recesses arranged on the yoke member, and the recesses arranged on the yoke member are specifically grooves arranged on the outer bottom surface of the yoke member, and the protrusions arranged on the support are in contact with the groove bottom surface.

[0037] The support is specifically the housing of the relay, but is not limited thereto, and in other embodiments, the support is a housing other than the housing of the relay and is used for supporting the relay. The yoke member is arranged in the housing, and the protrusions 21 are arranged on the inner bottom surface of the housing. The yoke member specifically includes the yoke plate 3 and the yoke body 2, the yoke body 2 includes a bottom wall and a side wall arranged on the edge of the bottom wall and extending upward, and the yoke plate 3 is arranged at the top end of the side wall of the yoke body 2 and cooperates with the yoke body 2 to form a cavity; the bottom surface of the bottom wall of the yoke body 2 constitutes the outer bottom surface of the yoke member, and therefore the protrusions 21 are arranged on the bottom wall of the yoke body 2 and protrude from the bottom surface of the bottom wall of the yoke body 2. In the embodiment, the yoke body 2 is in the shape of a U, but is not limited thereto, and in other embodiments, the yoke body 2 is a yoke cylinder, at this time, the side wall of the yoke body 2 is in the shape of a circle, or the side wall of the yoke body 2 is arranged in multiple, the multiple side walls are distributed along the circumference of the yoke body 2, and each side wall is in the shape of an arc and is arranged concentrically. In other embodiments, the yoke body includes a top wall and a side wall, and the yoke plate is arranged at the bottom end of the side wall of the yoke body. The protrusions 21 are arranged in multiple, the multiple protrusions 21 are distributed at the outer bottom surface of the yoke member, and specifically, the multiple protrusions 21 are distributed at the outer bottom surface of the yoke body 2. Preferably, the protrusions 21 are arranged in at least three, and the at least three protrusions 21 are arranged in the shape of a triangle or a polygon. In the embodiment, the protrusions 21 are taken as an example of four, and the four protrusions 21 are arranged in the shape of a square, but the number and distribution form of the protrusions 21 are not limited thereto. Each protrusion 21 is in the structure of a petal, and in the embodiment, the yoke member is formed by stamping to form each protrusion 21, that is, the bottom wall of the yoke body 2 is formed by stamping to form each protrusion 21, and therefore the inner bottom surface of the bottom wall of the yoke body 2 forms a recess 22 at the position corresponding to each protrusion 21, as shown in FIG. 2. In other embodiments, the protrusions 21 are arranged in one, and the protrusion 21 is in the shape of a ring or an arc or a square, etc. Figure 6

[0038] The inner bottom surface of the support (i.e. the housing) is provided with a groove 11 corresponding to each protrusion 21, the depth of the groove 11 is less than the protruding amount of the protrusion 21 relative to the outer bottom surface of the yoke member, and the shape and / or the periphery size of the groove 11 are matched with the protrusion 21, and each protrusion 21 is arranged on the groove bottom surface of the groove 11. In this way, the inner bottom surface of the housing is matched with each protrusion 21 through a small area, which is more convenient for controlling the dimensional accuracy and reducing the influence of the thickness tolerance of the bottom of the housing.

[0039] ​In the embodiment, the shell comprises a lower shell 1 and an upper cover 10, the upper cover 10 is connected to the top end of the lower shell 1, and the two enclose the inner cavity of the shell. The recess 11 is provided on the inner bottom surface of the lower shell 1. The outer bottom surface of the lower shell 1 is provided with a plurality of mounting portions 12. In other embodiments, the shell comprises an upper shell and a lower shell distributed in the upper and lower directions, or the shell comprises an upper shell and a bottom plate provided at the bottom end of the upper shell, etc. Please refer to Figures 1-10 The utility model discloses a relay, including coil assembly 4 and contact assembly, still include yoke part and support spare cooperation structure as above-mentioned utility model, support spare is the shell of relay. Coil assembly 4 sets up in the cavity of yoke part, and contact assembly is located the cavity outside, and is located the axial direction of coil assembly 4 and is away from the side of convex part 21.

[0040] The utility model also includes insulating cover 5, and insulating cover 5 is placed in the shell, and is located the side of yoke part and is away from convex part 21. Coil assembly 4 includes coil holder 41, coil 42 that winds in the outside of coil holder 41, is equipped with dynamic core 43 and static core 44 in the axle hole of coil holder 41, and insulating cover 5 bottom end sets up frame piece 9, and this frame piece 9 is placed in yoke plate 3 top surface. Contact assembly includes a plurality of static contact 6 and dynamic contact piece 7, and each static contact 6 is respectively threaded in the top wall of insulating cover 5, and dynamic contact piece 7 is placed in insulating cover 5, and is through push rod spare 8 and the dynamic core 43 of setting in coil assembly 4 cooperation. In the embodiment, static contact 6 is equipped with two, but is not limited to this. The bottom end of two static contacts 6 respectively extends into insulating cover 5, and with the both ends of dynamic contact piece 7 placed in insulating cover 5 corresponding cooperation;Push rod assembly 8 upper end connects dynamic contact piece 7, and the lower end of push rod assembly 8 passes through frame piece 9, yoke plate 3, static core 44 in proper order downwards, and is connected with dynamic core 43.

[0041] The utility model discloses a yoke part through a plurality of convex parts as with support spare (namely shell) cooperation's support point, or, yoke part passes through the recess and the convex part on support spare contact cooperation, because the cross section area of convex part or convex part and recess is far less than the area of yoke main part 2's outer bottom surface, therefore, the height of convex part or convex part and recess compares with the thickness of yoke main part 2's bottom wall more easily control, thus the utility model can utilize convex part or convex part and recess reduces the height tolerance between the upper and lower surfaces of yoke part (the material thickness tolerance of yoke part leads to the height tolerance between the upper and lower surfaces of yoke part is larger), thereby can reduce the overall height tolerance between the upper surface of static contact 6 and the lower surface of mounting portion 12, and further improve the effect when the customer installs, especially when installing copper bar, can improve the conductivity of copper bar and static contact, reduce contact resistance, reduce temperature rise, also can reduce the installation stress of static contact, reduce the risk of rupture and air leakage at the connection of static contact and insulating cover.

[0042] The utility model discloses a device with relay, including support spare and relay, and support spare is the shell of the device, and the cooperation structure of support spare and yoke part adopts the cooperation structure of yoke part and support spare.

[0043] The utility model discloses a yoke part and support spare cooperation structure and relay and device with relay, and the part not involved is same with prior art or can adopt prior art to realize.

[0044] The above embodiment is only used to further illustrate the yoke part and support spare cooperation structure and relay and device with relay of the utility model, but the utility model is not limited to the embodiment, and any simple modification, equivalent change and modification according to the technical essence of the utility model to the above embodiment all fall into the protection scope of the utility model technical scheme.

Claims

1. A yoke component and support component mating structure, comprising a support component and a relay yoke component, the yoke component forming a cavity for housing a relay coil assembly; characterized in that: The yoke component has a protrusion between the side of the coil assembly away from the contact assembly of the relay and the support member in the axial direction. The protrusion is provided on the yoke component, or the protrusion is provided on the support member, and the yoke component has a recess corresponding to the protrusion.

2. The mating structure of the yoke component and the support member according to claim 1, characterized in that: The protrusion is provided on the yoke component and contacts and engages with the support member; or, the protrusion is provided on the support member and contacts and engages with the recess.

3. The mating structure of the yoke component and the support member according to claim 2, characterized in that: The protrusions are provided in multiple portions, and the multiple protrusions are distributed on the outer bottom surface of the yoke component.

4. The mating structure of the yoke component and the support member according to claim 1, characterized in that: The protrusions are provided in at least three parts, and the at least three protrusions are distributed in a triangular or polygonal pattern.

5. The mating structure of the yoke component and the support member according to claim 1, characterized in that: The protrusion is a convex-bud structure.

6. The mating structure of the yoke component and the support member according to any one of claims 1-5, characterized in that: The yoke component includes a yoke plate and a yoke body. The yoke body includes a bottom wall and a side wall located at the edge of the bottom wall and extending upward. The yoke plate is located at the top of the side wall of the yoke body and together with the yoke body forms the cavity. The protrusion is located on the yoke body and protrudes from the bottom surface of the bottom wall of the yoke body.

7. The mating structure of the yoke component and the support member according to claim 6, characterized in that: The yoke body is a yoke cylinder, or the yoke body is U-shaped.

8. The mating structure of the yoke component and the support member according to claim 2 or 3, characterized in that: The support member has a groove corresponding to the protrusion, the depth of the groove is less than the protrusion of the protrusion relative to the outer bottom surface of the yoke component, and the protrusion is placed on the bottom surface of the groove.

9. The mating structure of the yoke component and the support member according to claim 8, characterized in that: The shape and / or the dimensions of the groove are adapted to the protrusion.

10. The mating structure of the yoke component and the support member according to claim 1, characterized in that: The support member is the housing of a relay, or the support member is the housing of a non-relay, and is used to support the relay.

11. A relay comprising a coil assembly and a contact assembly, characterized in that: It also includes a yoke component and support structure as described in any one of claims 1-10, wherein the support is the housing of a relay, the coil assembly is disposed in the cavity of the yoke component, and the contact assembly is located outside the cavity and on the side of the coil assembly away from the protrusion in the axial direction.

12. The relay according to claim 11, characterized in that: It also includes an insulating cover, which is placed inside the housing and located on the side of the yoke component away from the protrusion; the contact assembly includes a plurality of stationary contacts and a moving contact piece, each stationary contact being respectively disposed through the insulating cover, the moving contact piece being disposed inside the insulating cover and cooperating with the moving iron core disposed in the coil assembly through a push rod component.

13. A device having a relay, comprising a support and a relay, the support being the housing of the device, the relay including a yoke component, characterized in that: The mating structure between the support member and the yoke component adopts the mating structure between the yoke component and the support member as described in any one of claims 1-10.

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