WO2017092585A1

WO2017092585A1 - Relay push mechanism and relay having same

Info

Publication number: WO2017092585A1
Application number: PCT/CN2016/106798
Authority: WO
Inventors: 曾志; 姚保同; 汪鲁建; 刘斯源
Original assignee: 比亚迪股份有限公司
Priority date: 2015-11-30
Filing date: 2016-11-22
Publication date: 2017-06-08
Also published as: CN205211669U

Abstract

A relay push mechanism and a relay having the same, the push mechanism (100) comprises: a movable contact panel support (104), a push rod (106) and a movable iron core (102) for driving the up-and-down movement of the push rod. A first end of the push rod (106) is connected to the movable iron core (102); a second end of the push rod (106) is connected to the movable contact panel support (104) which is provided with a plurality of movable contact panels (105), each of the movable contact panels (105) being provided with a pair of movable contacts and movably provided on the movable contact panel support (104) in an up-and-down direction. The movable iron core of the push mechanism, when driven by the push rod, is able to push the plurality of movable contact panels to actuate at the same time, thereby saving space and reducing costs.

Description

Pushing mechanism of relay and relay with same

Technical field

The present disclosure relates to the field of electrical appliances, and in particular to a push mechanism of a relay and a relay therewith.

Background technique

The related art relay has only two sets of contacts. However, in practical applications, the vehicle requires a plurality of pairs of contacts, which requires the use of a plurality of relays, thereby not only taking up space but also increasing cost.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems in the related art to some extent. To this end, the first aspect of the present disclosure is to provide a push mechanism of a relay that can simultaneously turn on a plurality of sets of contacts at a reduced cost.

A second aspect of the present disclosure is to provide a relay provided with the above-described pushing mechanism.

A pushing mechanism of a relay according to an embodiment of the present disclosure includes a movable contact plate bracket, a push rod, and a movable iron core for driving the push rod to move up and down, the first end of the push rod is connected to the movable iron core, and the push rod The second end is connected to the movable contact bracket; the movable contact bracket is spaced apart from the movable contact plate, and each movable contact plate is provided with a pair of movable contacts.

According to the pushing mechanism of the relay of the embodiment of the present disclosure, the moving iron core can push the plurality of moving touch plates under the driving of the pushing rod, thereby saving space and reducing cost.

In addition, the pushing mechanism of the relay according to the above-described embodiments of the present disclosure may further have the following additional technical features:

According to an embodiment of the present disclosure, each of the movable contact plates is movably disposed on the movable contact plate bracket in an up-and-down direction, and between each of the movable contact plates and the movable contact plate bracket Buffer.

Further, the movable contact plate bracket is provided with a guide plate extending in the up and down direction corresponding to each of the movable contact plates, and at least a part of each of the movable contact plates is disposed on the inner side of the corresponding guide plate and along the upper and lower sides The direction is slidable, and one end of the guide plate facing away from the movable contact plate bracket is provided with a limiting block, and at least a portion of each of the movable contact plates is disposed between the limiting block and the movable contact plate bracket.

Optionally, each of the movable contact plates is provided with a first protrusion toward an end of the movable contact plate bracket, and the movable contact plate bracket is provided with a second protrusion opposite to the first protrusion. The buffering member is a spring that is sleeved on the first protrusion and the second protrusion, respectively.

Optionally, the movable contact bracket and the limiting block are integrally injection molded.

According to an embodiment of the present disclosure, the movable contact bracket is integrally injection molded with the push rod.

A relay according to an embodiment of the second aspect of the present disclosure includes a housing, a pushing mechanism and a driving provided in the housing a mechanism, and a static contact disposed at a top end of the casing, wherein the pushing mechanism is a pushing mechanism of the relay described above, the driving mechanism comprising a pallet, and a winding disposed under the pallet for driving the movable iron core a barrel and a coil wound around the bobbin, the movable iron core is located in the bobbin, the first end of the push rod is connected with the moving iron core, and the second end of the push rod passes through the support The plate is connected to the movable contact plate bracket; a reset elastic member is disposed between the support plate and the movable iron core, and the return elastic member is used to drive the movable iron core to move downward and reset; the static contact is a plurality of pairs Each pair of static contacts corresponds to a movable contact on each of the movable contact plates on the urging mechanism.

In addition, the relay according to the above embodiment of the present disclosure may also have the following additional technical features:

Further, the pallet is provided with a hollow limiting post, the limiting post is connected to the pallet and fixed in relative position, the pushing rod passes through the limiting post, and the reset elastic sleeve The outer side of the push rod is disposed on the outer side of the push rod, and the two ends of the return elastic member are respectively connected to the movable iron core and the limiting post.

Further, a limiting flange is disposed on an inner circumferential surface of the central portion of the limiting post, and one end of the return elastic member protrudes into the limiting post against the limiting flange.

Optionally, the first end of the limiting post is welded to the pallet and the second end of the limiting post extends toward the moving iron core.

Optionally, a magnetically permeable sleeve is disposed inside the bobbin, and the movable iron core is disposed in the magnetic permeable sleeve.

DRAWINGS

1 is a schematic view of a pushing mechanism of a relay of an embodiment of the present disclosure.

Figure 2 is a cross-sectional view of the pushing mechanism of Figure 1.

Figure 3 is a partial enlarged view of a portion A of the pushing mechanism shown in Figure 2.

Figure 4 is a partial elevational view of the push mechanism of Figure 1.

FIG. 5 is a schematic diagram of a relay of an embodiment of the present disclosure.

Reference mark:

Pushing mechanism 100, pallet 101, moving iron core 102, reset elastic member 103, moving contact plate bracket 104, moving contact plate 105, push rod 106, limit post 107, limit flange 108, spring 109, guide plate 110 a limiting block 111, a first protrusion 112, a second protrusion 113, a first boss 115, a second boss 114, a guiding hole 1071, a guiding sleeve 1041, a relay 200, a driving mechanism 203, a bobbin 206, The coil 207 and the magnetic sleeve 211.

detailed description

The embodiments of the present disclosure are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative, and are not intended to be construed as limiting.

A push mechanism 100 of a relay according to an embodiment of the present disclosure will be described in detail below with reference to FIGS. 1 through 5.

Referring to FIG. 1, a push mechanism 100 of a relay according to an embodiment of the present disclosure includes a movable contact bracket 104, a push rod 106, and a movable iron core 102.

Specifically, the movable iron core 102 can be used to drive the push rod 106 up and down (for example, the up and down direction shown in FIG. 1), and the first end of the push rod 106 (for example, the lower end of the push rod 106 in FIG. 1) can be Connected to the movable iron core 102, the second end of the push rod 106 (for example, the upper end of the push rod 106 in FIG. 1) can be connected to the movable touch panel bracket 104; the movable touch panel bracket 104 can be spaced apart from the movable contact plate. 105. Each movable contact plate 105 can be provided with a pair of movable contacts. Thereby, the corresponding action of the relay can be achieved by the pushing mechanism 100.

According to the push mechanism 100 of the relay according to the embodiment of the present disclosure, the movable touch panel bracket 104 is spaced apart from the plurality of movable touch panels 105, so that a plurality of switches can be triggered at the same time, and since the plurality of movable touch panels 105 are disposed at the same movement The touch panel bracket 104, that is to say the plurality of dynamic touch panels 105 are driven by the same movable touch panel bracket 104, can improve the stability of the pushing mechanism 100, avoid the malfunction caused by the unsynchronized operation of the plurality of moving touch panels 105, and overcome the problem. A security risk in the related art.

In addition, the moving iron core 102 can push the plurality of moving contact plates 105 to move under the driving of the pushing rod 106, thereby saving space and reducing cost.

The movable iron core 102 and the movable touch panel bracket 104 of the present disclosure may be disposed on the same side or different sides of the pallet 101, and only need to move the movable touch panel bracket 104 during the movement of the movable iron core 102, wherein When the movable iron core 102 and the movable touch panel bracket 104 are on the same side, the movable iron core 102 and the dynamic touch panel bracket 104 can be directly or indirectly connected together. The present disclosure mainly provides the movable iron core 102 and the movable touch panel 104 in the present disclosure. The different sides of the pallet 101 are described as examples, but are not to be construed as limiting the scope of the disclosure.

2 and 4, in some embodiments of the present disclosure, the pushing mechanism 100 may further include a push rod 106 through which the first end of the push rod 106 (eg, the lower end of the push rod 106 in FIG. 4) may pass The 101 is coupled to the moving iron core 102, and the second end of the push rod 106 (for example, the upper end of the push rod 106 in FIG. 4) is connectable to the movable contact holder 104. Therefore, the movable iron core 102 and the movable contact plate bracket 104 are disposed on both sides of the pallet 101, so that the movable iron core 102 stably drives the movable contact plate bracket 104 to move, thereby improving the stability of the dynamic touch panel bracket 104. In addition, the stability of the operation of the pushing mechanism 100 is further improved by the pushing of the push rod 106.

1 and 2, each of the movable contact plates 105 is movably disposed on the movable contact plate holder 104 in the up and down direction, and a buffer member may be disposed between each of the movable contact plates 105 and the movable contact plate holder 104. Thereby, the movement of each of the movable contact plates 105 on the movable contact plate holder 104 can be made smoother, and each movable contact plate 105 can make each dynamic touch through the buffer member when the movable contact plate 105 is in contact with the corresponding static contact or the like. The plate 105 is in stable contact with the stationary contacts.

Further, referring to FIG. 1 and FIG. 4, opposite sides of each of the movable contact plates 105 (for example, the left and right sides of each of the movable contact plates 105 in FIG. 1) may be provided with a guide plate 110, and the guide plate 110 It can be connected to the movable contact bracket 104, and one end of the guide plate 110 facing away from the movable contact bracket 104 (for example, the upper end of the guide plate 110 in FIG. 1) can be provided with a limiting block 111. Thereby, each of the movable contact plates 105 can be reliably restrained, and the vertical movement of each of the movable contact plates 105 can be facilitated. Referring to Fig. 1, the guide plate 110 may extend in the up and down direction.

In other words, the movable contact plate holder 104 is provided with a plurality of guide plates 110 corresponding to the plurality of movable contact plates 105, and the plurality of guide plates 110 each extend in the up and down direction. At least a portion of each of the movable contact plates 105 is located on the inner side of the corresponding guide plate 110 and slidable in the up and down direction. One end of the guide plate 110 facing away from the movable contact plate bracket 104 is provided with a limiting block 111, and each of the movable contact plates 105 At least a portion is disposed between the limiting block 111 and the movable contact plate holder 104. In other words, through The over-limit block 111 can limit the displacement of each of the movable contact plates 105. That is, each of the movable contact plates 105 is restricted from swinging in the horizontal direction by the guide plates 110, and the displacement of each of the movable contact plates 105 in the up and down direction is restricted by the stoppers 111.

Each of the movable contact plates 105 may be provided with two guide plates 110 extending in the up and down direction, and at least a portion of each of the movable contact plates 105 is confined between the two guide plates 110. Of course, the above description is only some specific examples of the present disclosure, and cannot be understood as a limitation on the number of the guide plates and the position at which the movable contact plates 105 are disposed. For example, the guide plates may also be provided as an annular plate-shaped guide plate. .

When the movable contact plate 105 is in the off position, the cushioning member (such as the spring 109 in FIG. 3) often drives the movable contact plate 104 against the limiting block 111.

Optionally, as shown in FIG. 2 and FIG. 3, each of the movable contact plates 105 facing one end of the movable touch panel bracket 104 (for example, the lower end of the movable touch panel 105 in FIG. 3) may be provided with a first protrusion 112. The contact pad holder 104 may be provided with a second protrusion 113 opposite to the first protrusion 112. The buffer member may be a spring 109 which is sleeved on the first protrusion 112 and the second protrusion 113 respectively.

For example, referring to FIG. 2 and FIG. 3, the upper end of the cushioning member such as the spring 109 may be sleeved on the outer circumference of the first protrusion 112, and the lower end of the cushioning member such as the spring 109 may be sleeved on the outer circumference of the second protrusion 113, thereby The up and down movement of the movable contact plate 105 can be achieved by the spring 109.

Alternatively, referring to FIG. 4, the movable contact bracket 104 and the limiting block 111 may be integrally injection molded. The movable contact bracket 104 and the push rod 106 can also be integrally injection molded. Thereby, the processing process can be simplified and the cost can be reduced.

In addition, the limiting block 111, the movable contact plate bracket 104 and the pushing rod 106 may be integrally formed. In a specific processing process, the limiting block 111 and the pushing rod 106 may be in the movable contact plate bracket 104 by in-mold injection molding. The plastic injection molding is inserted into the plastic injection molding, so that the movable contact holder 104 can be completed.

Referring to FIG. 5, and in conjunction with FIGS. 1 and 4, a relay 200 according to an embodiment of the second aspect of the present disclosure includes a housing (not shown), a pushing mechanism and a driving mechanism 203 disposed within the housing, and a housing disposed The top stationary contact, the pushing mechanism may be the pushing mechanism 100 of the above relay, the driving mechanism 203 may include a pallet 101, a bobbin 206 and a coil 207, wherein the bobbin 206 may be disposed under the pallet 101 for The moving iron core 102 is driven, the coil 207 can be wound around the outer circumference of the bobbin 206, the movable iron core 102 can be located in the bobbin 206, and the first end of the push rod 106 can pass through the first end of the pallet 101 (for example The lower end of the pallet 101 in FIGS. 1 and 4 is connected to the movable iron core 102, and the second end of the push rod 106 can pass through the second end of the pallet 101 (for example, the pallet 101 of FIGS. 1 and 4). The upper end) can be connected to the movable contact plate holder 104; a reset elastic member 103 can be disposed between the support plate 101 and the movable iron core 102, and the return elastic member 103 can be used to drive the movable iron core 102 to move downward and reset; the static contact can be For multiple pairs, each pair of static contacts can be associated with each of the moving contacts on the push mechanism 100 The moving contacts on the 105 correspond.

For example, referring to FIG. 1, a plurality of moving contact plates 105 may be disposed on the movable contact plate bracket 104 at intervals on the left and right (for example, left and right shown in FIG. 1), and each of the movable contact plates 105 faces away from the movable contact plate bracket 104. One side (for example, the upper side of the movable contact plate 105 in Fig. 1) may be provided with at least one pair of movable contacts spaced apart. Thereby, the opening and closing of the movable contact can be controlled by the operation of the plurality of movable contact plates 105, so that the opening and closing of the relay 200 can be controlled.

For example, in the example of FIG. 1, three movable touch panels 105 are shown, and the three movable touch panels 105 are evenly spaced on the left and right sides of the movable touch panel bracket 104. In the process of moving the movable touch panel 105 up and down, in the same There will be three sets of static contacts at the moment. It is electrically connected to the movable contact plate 105, whereby the number of the relays 200 can be saved and the cost can be reduced.

It should be noted that the foregoing descriptions of the number of the movable contact plates 105 and the number of the movable contacts are merely exemplary, and are not to be construed as limiting the disclosure, and the practical application may be adapted as needed.

According to the relay 200 of the embodiment of the second aspect of the present disclosure, the above-described pushing mechanism 100 may be provided, whereby the action of the plurality of sets of contacts can be controlled by the action of the plurality of moving contact plates 105 on the movable contact plate holder 104, in other words At the same time, multiple sets of contacts can be turned on or off, so that the user's demand for the relay can be better met.

In addition, the upper, lower, left, and right terms referred to in the present disclosure are relative.

Further, referring to FIG. 1 and in conjunction with FIG. 2 and FIG. 5, the pallet 101 may be provided with a hollow limiting post 107, and the limiting post 107 may be connected to the pallet 101 and the relative position of the limiting pillar 107 and the pallet 101. Fixed, the push rod 106 can pass through the limit post 107, and the return elastic member 103 can be sleeved outside the push rod 106 (for example, the side away from the center line of the push rod 106 in FIG. 2), and the two elastic members 103 are reset. The ends may be connected to the movable iron core 102 and the limit post 107, respectively.

For example, in the example of FIG. 2, the upper end of the return elastic member 103 may be coupled to the stopper post 107, and the lower end of the return elastic member 103 may be coupled to the movable iron core 102.

Wherein, the limiting post 107 can play a guiding role, so that the swinging of the push rod 106 can be restricted, thereby further improving the stability of the movement of the movable contact bracket 104.

As shown in FIG. 2, the inner peripheral surface of the central portion of the limiting post 107 may be provided with a limiting flange 108, and the first end of the return elastic member 103 (for example, the upper end of the reset elastic member 103 in FIG. 2) may extend into the limit. The post 107 is placed against the limit flange 108. Thereby, the return elastic member 103 can be restrained, and the swing of the return elastic member 103 can be reduced, so that the pushing mechanism 100 can operate normally.

In addition, a limiting slot may be disposed on the movable iron core 102, and the second end of the return elastic member 103 is inserted into the limiting slot.

Optionally, the first end of the limiting post 107 (eg, the upper end of the limiting post 107 in FIG. 2) may be welded to the pallet 101 and the second end of the limiting post 107 (eg, the limiting post 107 in FIG. 2) The lower end) can extend toward the movable core 102.

In addition, as shown in FIG. 2, the supporting plate 101 may be provided with a matching hole (not shown). The first end of the limiting post 107 (for example, the upper end of the limiting post 107 in FIG. 2) may be provided with a first convex. The stage 115 and the second boss 114, wherein the first boss 115 can be sleeved in the matching hole, the second boss 114 can be located at the upper end of the first boss 115, and the radial direction of the second boss 114 The guide hole 1071 in the limiting post 107 can extend in the up and down direction and penetrate the first boss 115 and the second boss 114. The movable contact bracket 104 can be provided. a guiding sleeve 1041 extending downwardly and sleeved on the outside of the pushing rod 106, the guiding sleeve 1041 is disposed inside the guiding hole 1071, wherein the first boss 115 can facilitate the limiting post 107 and the pallet 101 By welding, the second boss 114 can lengthen the length of the guide hole 1071, thereby improving the stability of the sliding of the movable contact plate holder 104.

Optionally, as shown in FIG. 5, the inner portion of the bobbin 206 may be provided with a magnetic conductive sleeve 211, and the movable iron core 102 may be disposed in the magnetic conductive sleeve 211. Thereby, the relay 200 can be made to obtain a large suction force during the operation.

In the description of the present disclosure, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "Width", "Thickness", "Up", "Bottom", "Before", "Late", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom" The orientation or positional relationship of the indications such as "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, only The present disclosure and the simplifications of the present disclosure are intended to be illustrative, and not to be construed as limiting the scope of the disclosure.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present disclosure, the terms "installation", "connected", "connected", "fixed", and the like, are to be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated or defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited. The specific meanings of the above terms in the present disclosure can be understood by those skilled in the art on a case-by-case basis.

In the present disclosure, the first feature "on" or "under" the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material, or feature is included in at least one embodiment or example of the present disclosure. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

While the embodiments of the present disclosure have been shown and described above, it is understood that the foregoing embodiments are illustrative and are not to be construed as limiting the scope of the disclosure The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A push mechanism for a relay, comprising: a movable contact plate bracket, a push rod and a movable iron core for driving the push rod to move up and down, the first end of the push rod is connected with the moving iron core, and the second end is connected with The movable contact plate bracket is connected; the movable contact plate bracket is spaced apart from the plurality of movable contact plates, and each of the movable contact plates is provided with a pair of movable contacts.
The urging mechanism of the relay according to claim 1, wherein each of the movable contact plates is movably disposed on the movable contact plate bracket in an up and down direction, and each of the movable contact plates is A cushioning member is arranged between the movable contact plate brackets.
The urging mechanism of the relay according to claim 2, wherein the movable contact plate bracket is provided with a guide plate extending in the up and down direction corresponding to each of the movable contact plates, and each of the movable contact plates At least a portion of the movable plate is disposed at an inner side of the corresponding guide plate and slidable in an up and down direction, and an end of the guide plate facing away from the movable contact plate bracket is provided with a limiting block, and at least a portion of each of the movable contact plates is disposed at the limit Between the bit block and the movable contact plate bracket.
The urging mechanism of the relay according to claim 2, wherein each of the movable contact plates is provided with a first protrusion toward one end of the movable contact plate bracket, and the movable contact plate bracket is provided with a seat The first protrusion is opposite to the second protrusion, and the buffering member is a spring which is sleeved on the first protrusion and the second protrusion respectively.
The urging mechanism of the relay according to claim 3, wherein the movable contact bracket and the limiting block are integrally injection molded.
The urging mechanism of the relay according to claim 1, wherein the movable contact plate bracket is integrally injection molded with the push rod.
A relay comprising a housing, a pushing mechanism and a driving mechanism disposed in the housing, and a static contact disposed at a top end of the housing, wherein the pushing mechanism is the pushing mechanism according to any one of claims 1-6 The driving mechanism includes a pallet, a bobbin disposed under the pallet for driving the movable iron core, and a coil wound around the bobbin, wherein the movable iron core is located in the bobbin, a first end of the push rod is connected to the movable iron core, and a second end is connected to the movable contact plate bracket through the support plate; a reset elastic member is disposed between the support plate and the movable iron core, and the reset elastic member is commonly used The moving iron core is driven to move downward to reset; the static contact is a plurality of pairs, and each pair of static contacts corresponds to a moving contact on each movable contact plate on the pushing mechanism.
The relay according to claim 7, wherein the pallet is provided with a hollow limiting post, the limiting post is connected to the pallet and fixed in relative position, and the pushing rod passes through the The limiting elastic member is sleeved on the outer side of the push rod, and two ends of the return elastic member are respectively connected to the movable iron core and the limiting post.
The relay according to claim 8, wherein a limiting flange is disposed on an inner circumferential surface of the central portion of the limiting post, and one end of the return elastic member extends into the limiting post to abut On the limit flange.
The relay of claim 8 wherein said first end of said stop post is welded to said carrier and said second end extends toward said movable core.
The relay according to claim 7, wherein a magnetically permeable sleeve is disposed inside the bobbin, and the movable iron core is disposed in the magnetic permeable sleeve.