CN217955764U

CN217955764U - Relay with main loop voltage signal sampling

Info

Publication number: CN217955764U
Application number: CN202221893891.4U
Authority: CN
Inventors: 覃奀垚
Original assignee: Kunshan Ruipu Electric Co ltd
Current assignee: Kunshan Ruipu Electric Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-02
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a relay with main loop voltage signal sampling, at least including left and right two sets of contact groups and a set of contact actuating mechanism, each set of contact group includes a moving contact and a static contact that are in the separation state under the normality, one side of left and right two sets of contact groups is equipped with an independent voltage signal acquisition contact respectively outward, when the contact actuating mechanism drives the moving contact and the static contact switch-on closure of the contact group, the voltage signal acquisition contact is switched on with the moving contact and the static contact simultaneously; when the contact driving mechanism drives the moving contact and the fixed contact of the contact group to be far away from disconnection, the voltage signal acquisition contact is simultaneously disconnected with the moving contact and the fixed contact. The utility model discloses a voltage signal when two voltage signal collection contacts of independent setting gather the switch-on that corresponds the contact group respectively to the contact group to both sides carries out the independent judgement of signal respectively, can not take place to influence each other, thereby has improved the authenticity that signal detection, has reduced the product use risk.

Description

Relay with main loop voltage signal sampling

Technical Field

The utility model relates to a relay especially relates to a relay with sampling of major loop voltage signal.

Background

An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is usually applied in an automatic control circuit, and which is actually an "automatic switch" that uses a smaller current and a lower voltage to control a larger current and a higher voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The electromagnetic relay is widely applied to the fields of aviation, aerospace, ships, household appliances and the like, mainly completes the functions of signal transmission, execution control, system power distribution and the like, and is one of key electronic components in each system.

The existing electromagnetic relay generally adopts a coil to carry out suction and release control, when the relay works, suction of an armature iron and a yoke iron is realized by supplying power to the coil, and suction or release action of a movable contact and a fixed contact is realized by arranging the movable contact and the fixed contact in the direction on the basis. In practical use, under various working conditions, a user needs to know the working state of a product or the on-off state of a main loop system, and in current industrial products, the form of an auxiliary switch is commonly adopted to output a state signal to the outside. In such a mode, because the two sampling needles of the auxiliary switch are generally connected with the moving contact, and the two fixed contacts are electrically connected, i.e., have the same potential, signals acquired by the two sampling needles are also at the same potential, i.e., when one of the moving contacts is damaged, etc., the signals acquired by the two sampling needles cannot be judged according to the signals of the two signal acquisition needles, so that the phenomenon of inaccurate signals exists.

Disclosure of Invention

In order to overcome the defects, the utility model provides a relay with sampling of major loop voltage signal can really obtain the on-state of every group moving, static contact, improves the signal degree of accuracy, reduces the use risk.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a relay with main loop voltage signal sampling at least comprises a left group of contact group, a right group of contact group and a group of contact driving mechanism, wherein each group of contact group comprises a moving contact and a static contact which are in a separation state under a normal state, the contact driving mechanism can drive the moving contact and the static contact of the contact group to be switched on and switched off and kept away from and switched off, and the relay is characterized in that: an independent voltage signal acquisition contact is arranged outside one side of each of the left contact group and the right contact group, and when the contact driving mechanism drives a moving contact and a static contact of each contact group to be connected and closed, the voltage signal acquisition contacts are connected with the moving contact and the static contact; when the contact driving mechanism drives the moving contact and the fixed contact of the contact group to be far away from disconnection, the voltage signal acquisition contact is disconnected with the moving contact and the fixed contact.

As a further improvement, the voltage signal acquisition contact is located outside the static contact, the upper end of voltage signal acquisition contact is located static contact top and orientation static contact direction bending type becomes the sampling portion of bending.

As a further improvement, the left and right two groups of contacts are driven by a single group of contact driving mechanism respectively.

As a further improvement, the two moving contacts in the left and right two groups of contact groups are electrically connected through the flexible piece.

As a further improvement of the present invention, the contact driving mechanism includes a positioning member, a coil assembly, an armature, a connecting member, and a return spring, wherein the coil assembly is fixedly disposed on an upper side surface of the positioning member; the upper end of the armature is arranged outside one end surface of the coil assembly, the lower end of the armature is bent in an L shape and then is arranged outside the lower side surface of the positioning piece and is fixedly connected with one end of the connecting piece, and the middle part of the armature is rotatably connected to the end part of the positioning piece to form a rotating fulcrum; the moving contact is fixedly arranged at the other end of the connecting piece, and two ends of the return spring are respectively connected to the middle part of the armature and the positioning piece, so that the upper end of the armature is far away from the coil assembly when the coil assembly is powered off.

As a further improvement of the utility model, the positioning piece is of an L-shaped structure.

As a further improvement, the coil component comprises a coil framework and a coil winding wound on the coil framework and a magnetizer arranged at the axis position of the coil framework.

As a further improvement of the present invention, the middle portion of the armature and the positioning member are respectively provided with a first spring hook and a second spring hook for fixing the end of the return spring.

The beneficial effects of the utility model are that: the utility model discloses a set up independent voltage signal collection contact outside left and right two sets of contact groups, voltage signal when gathering the switch-on that corresponds the contact group respectively to carry out the judgement of signal respectively to the contact group of both sides, can not influence each other, thereby can not produce the erroneous judgement, improved signal detection's authenticity, reduced the product use risk.

Drawings

Fig. 1 is a schematic structural view of the embodiment of the present invention in an open state of the contact set;

FIG. 2 is a schematic view of the structure of FIG. 1 from another view angle;

fig. 3 is a schematic structural view of the embodiment of the present invention in a state where the contact group is connected;

fig. 4 is a schematic view of fig. 3 from another view angle.

The following description is made with reference to the accompanying drawings:

1. a contact group; 11. a moving contact; 12. static contact; 2. a voltage signal acquisition contact; 21. bending the sampling part; 3. a contact drive mechanism; 31 a positioning member; 311 a second spring hook; 32. a coil assembly; 321. a magnetizer; 33. an armature; 331. a first spring hook; 34. a connecting member.

Detailed Description

The following description of a preferred embodiment of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1-4, for a relay with main loop voltage signal sampling, at least including left and right two sets of contact group 1 and a set of contact actuating mechanism 3, every group contact group is including a moving contact 11 and a static contact 12 that are in the separation state under the normality, electrical connection between two moving contacts in left and right two sets of contact group 1 simultaneously, make and form the series connection between left and right two sets of contact group, two moving contacts of two sets of contact groups switch on when contacting with the static contact that corresponds respectively under the drive of contact actuating mechanism 3, break off during the separation, thereby realize the function of breaking.

In order to realize the accurate detection of the connection or disconnection state of the left and right groups of contact groups, the utility model discloses be equipped with an independent voltage signal acquisition contact 2 outside one side of the left and right groups of contact groups respectively, when the contact driving mechanism drives the moving contact and the static contact of the contact group to be connected and closed, the voltage signal acquisition contact 2 is connected with the moving contact and the static contact simultaneously; when the contact driving mechanism drives the moving contact and the fixed contact of the contact group to be far away from disconnection, the voltage signal acquisition contact 2 is simultaneously disconnected with the moving contact and the fixed contact. Namely the utility model discloses set up two independent voltage signal acquisition contacts 2, when two sets of contact group disconnection, disconnection between two voltage signal acquisition contacts 2 and the contact group, no signal acquisition. When the moving contacts of two sets of contact groups are respectively communicated with the corresponding static contacts, the two voltage signal acquisition contacts 2 can respectively acquire corresponding voltage signals, when the moving contact of only one contact group is closed and communicated with the corresponding static contact, only the corresponding voltage signal acquisition contact 2 can correspondingly acquire the voltage signal on the contact group, the other contact group can not be closed and communicated due to damage or other reasons, the corresponding voltage signal acquisition contact 2 can not acquire the corresponding voltage signal, so that accurate acquisition of the voltage signal of the corresponding contact group can be realized, the conduction condition of a single contact pair can be accurately judged, risk investigation is facilitated, and use risk is reduced.

In order to better realize signal acquisition, the voltage signal acquisition contact 2 is arranged outside the static contact 12, and the upper end of the voltage signal acquisition contact 2 is located above the static contact 12 and is bent towards the direction of the static contact to form a bent sampling part 21, that is, the bent sampling part 21 can be in contact conduction with a moving contact of a contact group, so that signal acquisition is realized.

The left and right groups of contact groups 1 can be driven by the same contact driving mechanism or driven by a single group of contact driving mechanism respectively. When two independent contact driving mechanisms are adopted for driving, two moving contacts 11 in the left and right groups of contact groups are electrically connected through a flexible part, so that the risk of the contact groups due to adhesion can be avoided.

The contact driving mechanism 3 is a conventional coil driving mechanism or another driving mechanism capable of realizing the opening and closing function, and the coil driving mechanism will be described in detail below. The positioning device specifically comprises a positioning piece 31, a coil assembly 32, an armature 33, a connecting piece 34 and a return spring (not shown in the drawing), wherein the coil assembly 32 is fixedly arranged on the upper side surface of the positioning piece 31; the upper end of the armature 33 is arranged outside one end surface of the coil assembly 32, the lower end of the armature is bent in an L shape and then is arranged outside the lower side surface of the positioning piece 31 and is fixedly connected with one end of the connecting piece 34, and the middle part of the armature is rotatably connected with the end part of the positioning piece 31 and forms a rotating fulcrum; the moving contact 11 is fixedly arranged at the other end of the connecting piece 34, and two ends of the return spring are respectively connected to the middle part of the armature 33 and the positioning piece 31, so that the upper end of the armature 33 is far away from the coil assembly 32 when the coil assembly is powered off. Wherein, the positioning member 31 is of an L-shaped structure. The coil assembly includes a coil bobbin, a coil winding wound around the coil bobbin, and a magnetizer 321 disposed at an axial line of the coil bobbin. The middle portion of the armature 33 and the positioning member 31 are respectively provided with a first spring hook 331 and a second spring hook 311 for fixing the end portions of the return spring.

When the moving contact driving mechanism 3 works, the coil component is electrified, the magnetizer 321 positioned at the center of the coil framework is magnetized to generate magnetic force, so that attraction is generated at one end, namely the upper end, of the armature 33 close to the coil component, and because the middle part of the armature 33 is rotatably connected with the positioning piece 31, the armature 33 is driven to rotate around a rotating fulcrum of the positioning piece under the action of the magnetic force of the magnetizer, so that the lower end of the armature 33 is driven to rotate along the anticlockwise direction in the figure 1, a connecting piece connected with the other end of the armature and a moving contact are driven to move, and the contact closing of the moving contact and a fixed contact is realized.

On the contrary, when the coil assembly is powered off, because the magnetizer 321 loses magnetic force, the armature 33 resets under the action of the return spring, and drives the moving contact and the fixed contact to be far away, so that the disconnection of the contact assembly is realized.

In order to facilitate the connection and conduction with the voltage signal acquisition contact 2, the connecting piece 34 can be a conductor, when the moving contact moves towards the direction of the fixed contact, the moving contact is in contact and conduction with the fixed contact while the connecting piece 34 moves to be in contact with the voltage signal acquisition contact 2, and the purpose of signal acquisition is achieved.

It should be noted that, the left and right two sets of contact sets of the invention can be connected in parallel to form a plurality of sets, and then the moving contact on the left side or the moving contact on the right side in the plurality of sets of contact sets is connected through the same connecting piece, and the independent voltage signal acquisition contact 2 is correspondingly arranged outside the contact set on the left side or the right side respectively to realize the functions of the invention.

Therefore, the utility model discloses a set up independent voltage signal collection contact outside left and right two sets of contact group, voltage signal when gathering the switch-on that corresponds the contact group respectively to the contact group to both sides carries out the judgement of signal respectively, can not influence each other, thereby can not produce the erroneous judgement, has improved signal detection's authenticity, has reduced the product use risk.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art will be able to make many changes and modifications to the invention using the method and techniques disclosed above, or to modify and adapt equivalent embodiments to equivalent variations, without departing from the scope of the invention. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A relay with main loop voltage signal sampling at least comprises a left group of contact group (1) and a right group of contact group (3), wherein each group of contact group comprises a moving contact (11) and a static contact (12) which are in a separation state under a normal state, the contact driving mechanism can drive the moving contact and the static contact of the contact group to be switched on and switched off and be kept away from the switching off, and the relay is characterized in that: an independent voltage signal acquisition contact (2) is respectively arranged outside one side of the left contact group and one side of the right contact group, and when the contact driving mechanism drives the moving contact and the static contact of the contact group to be connected and closed, the voltage signal acquisition contact (2) is connected with the moving contact and the static contact; when the contact driving mechanism drives the moving contact and the static contact of the contact group to be far away from disconnection, the voltage signal acquisition contact (2) is disconnected with the moving contact and the static contact.

2. The relay with main loop voltage signal sampling of claim 1, wherein: the voltage signal acquisition contact (2) is arranged outside the static contact (12), and the upper end of the voltage signal acquisition contact (2) is positioned above the static contact (12) and is bent towards the static contact to form a bending sampling part (21).

3. The relay with main loop voltage signal sampling of claim 1 or 2, wherein: the left and right groups of contact sets (1) are respectively driven by a single group of contact driving mechanism.

4. The relay with main loop voltage signal sampling of claim 3, wherein: two moving contacts (11) in the left and right contact groups (1) are electrically connected through a flexible part.

5. The relay with main loop voltage signal sampling of claim 3, wherein: the contact driving mechanism (3) comprises a positioning piece (31), a coil component (32), an armature (33), a connecting piece (34) and a return spring, wherein the coil component (32) is fixedly arranged on the upper side surface of the positioning piece (31); the upper end of the armature (33) is arranged outside one end surface of the coil assembly (32), the lower end of the armature is bent in an L shape and then is arranged outside the lower side surface of the positioning piece (31) and is fixedly connected with one end of the connecting piece (34), and the middle part of the armature is rotatably connected with the end part of the positioning piece (31) and forms a rotating fulcrum; the moving contact (11) is fixedly arranged at the other end of the connecting piece (34), and two ends of the return spring are respectively connected to the middle part of the armature (33) and the positioning piece (31), so that the upper end of the armature (33) is far away from the coil assembly (32) when the coil assembly is powered off.

6. The relay with main loop voltage signal sampling of claim 5, wherein: the positioning piece (31) is of an L-shaped structure.

7. The relay with main loop voltage signal sampling of claim 5, wherein: the coil component comprises a coil framework, a coil winding wound on the coil framework and a magnetizer (321) arranged at the axis position of the coil framework.

8. The relay with main loop voltage signal sampling of claim 5, wherein: and a first spring hook (331) and a second spring hook (311) for fixing the end part of the return spring are respectively arranged on the middle part of the armature (33) and the positioning piece (31).