Electromagnetic relay with detection function

Abstract

The utility model provides an electromagnetic relay with a detection function, which comprises an insulation framework, a double reed and a detection piece used for detecting the operation state of the electromagnetic relay, the bottom of the insulation framework is provided with a containing groove, one end of the containing groove is provided with a movable leading-out pin, and the other end of the containing groove is provided with a static leading-out pin. The double-reed and the detection piece are arranged in the accommodating groove; one end of the double reed is connected with the movable lead-out pin, the other end of the double reed is provided with a movable contact, and the static lead-out pin is provided with a static contact corresponding to the movable contact; a detection pin is arranged at one end of the detection piece, a detection contact corresponding to the movable contact is arranged at the other end of the detection piece, the detection pin extends out of the insulating framework, and the movable contact is in contact with the detection contact in a normal state; the electromagnetic relay with the detection function provided by the utility model overcomes the defect that the existing electromagnetic relay does not have the detection function.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic relays, in particular to an electromagnetic relay with a detection function. Background Art

[0002] An electromagnetic relay is a relay that uses electromagnetic force to drive the relative movement of mechanical parts to produce a predetermined response. It is generally composed of an iron core, a coil, an armature, a yoke, and moving and static springs with contacts. When current passes through the coil, an electromagnetic force is generated, and the armature is attracted, so that the moving contact of the moving spring contacts the static contact of the static spring; when the current in the coil disappears, the electromagnetic force disappears, and the armature resets, so that the moving contact of the moving spring separates from the static contact of the static spring. The purpose of conducting or cutting off the circuit is achieved through the attraction or separation of the moving contact and the static contact.

[0003] The existing electromagnetic relays do not have a detection function, and the operating status of the electromagnetic relay cannot be obtained when the electromagnetic relay is running, which is very inconvenient to use. The moving reed is an important component in the electromagnetic relay. The structure of the moving reed can determine the load capacity of the relay. The existing moving reeds all adopt a single-layer structure, which has a weak load capacity and low practicality. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide an electromagnetic relay with a detection function, so as to overcome the defect that the existing electromagnetic relay has no detection function.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides an electromagnetic relay with a detection function, comprising an insulating frame, a double reed and a detection member for detecting the operating state of the electromagnetic relay, wherein a receiving groove is arranged at the bottom of the insulating frame, a moving lead pin is installed at one end of the receiving groove, and a static lead pin is installed at the other end thereof, and the double reed and the detection member are both placed in the receiving groove; one end of the double reed is connected to the moving lead pin, and a moving contact is arranged at the other end thereof, and a static contact corresponding to the moving contact is arranged on the static lead pin; a detection pin is arranged at one end of the detection member, and a detection contact corresponding to the moving contact is arranged at the other end thereof, the detection pin extends to the outside of the insulating frame, and the moving contact is in contact with the detection contact under normal conditions.

[0008] In some embodiments, the detection member includes a plug-in board located on one side, one end of the plug-in board is provided with the L-shaped detection contact, and the other end thereof is provided with an extension plate obliquely, and the end of the extension plate away from the plug-in board is provided with the detection pin vertically. An L-shaped limit plate is provided on the inner wall of the accommodating groove, and a plug-in groove is formed between the L-shaped limit plate and the insulating frame, the plug-in board is partially plugged into the plug-in groove, the detection contact extends out of the plug-in groove, and the extension plate is located on one side of the double spring.

[0009] In some embodiments, the extension plate is covered with an insulating sleeve, and the insulating sleeve is a heat shrink tube. The detection pin, the detection contact, the plug board and the extension plate are conductive parts of an integrated structure.

[0010] In some embodiments, the double reed includes a first moving reed and a second moving reed of similar shape, wherein the second moving reed is stacked on the first moving reed; one end of the two moving reeds is fixedly connected through the moving contact, and the other end of the two moving reeds is connected to the moving lead pin.

[0011] In some embodiments, an electromagnetic assembly is installed at the upper end of the insulating frame, and the electromagnetic assembly includes an armature and a push card connected to the armature, and the push card is used to push the double spring to make the moving contact and the static contact contact; the push card is provided with a push block extending toward the double spring, and the push block is in abutment with the driving part of the double spring.

[0012] In some embodiments, the electromagnetic assembly further comprises a coil frame arranged at the upper end of the insulating frame, an iron core is inserted into the coil frame, a yoke is installed at one end of the coil frame, and the armature corresponding to the iron core is installed at the other end. A compression spring is installed at the bottom of the yoke, and the compression spring is used to press the armature.

[0013] (III) Beneficial effects

[0014] The electromagnetic relay with detection function provided by the utility model has the following advantages compared with the prior art:

[0015] 1) A detection piece is added, one end of which is provided with a detection contact that cooperates with the moving contact, and the other end of the detection piece is provided with a detection pin for easy connection. The operating status of the electromagnetic relay can be obtained in real time through the contact between the moving contact and the detection contact, which increases its functionality and facilitates detection.

[0016] 2) The double-layer spring structure is beneficial to improve the load capacity, so that it can achieve high load while also having a good contact gap, which can better meet the customer's requirements for large load switching capacity, high contact gap and contact pressure resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a three-dimensional diagram of an electromagnetic relay with a detection function according to the utility model;

[0019] Figure 2 This is an exploded diagram of an electromagnetic relay with a detection function according to the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of an electromagnetic relay with a detection function after removing the outer cover of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of an electromagnetic relay with a detection function of the utility model after removing the outer cover;

[0022] Figure 5 This is a three-dimensional diagram of an electromagnetic relay detection component with detection function according to the utility model;

[0023] Figure 6 This is a three-dimensional diagram of an insulating frame of an electromagnetic relay with a detection function according to the utility model;

[0024] Figure 7 A three-dimensional diagram of a double reed of an electromagnetic relay with a detection function according to the utility model;

[0025] Figure 8 It is a three-dimensional diagram of an electromagnetic assembly of an electromagnetic relay with a detection function according to the utility model;

[0026] Fig. 9 It is a stereoscopic diagram of the electromagnetic assembly of an electromagnetic relay with a detection function from another perspective of the utility model;

[0027] The names of the components corresponding to the various figure marks in the figure are: 1. Insulating frame; 101. Receiving groove; 102. L-shaped limiting plate; 103. Plug-in slot; 2. Double spring; 201. Moving contact; 202. First moving spring; 203. Second moving spring; 204. Driving unit; 3. Detection member; 301. Detection pin; 302. Detection contact; 303. Plug-in board; 304. Extension board; 305. Insulating sleeve; 4. Moving lead pin; 5. Static lead pin; 501. Static contact; 6. Electromagnetic assembly; 601. Armature; 602. Push card; 603. Coil frame; 604. Iron core; 605. Yoke; 606. Compression spring; 607. Push block; 7. Outer cover. DETAILED DESCRIPTION

[0028] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0030] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0032] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0033] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 9 The utility model provides an electromagnetic relay with a detection function, comprising an insulating frame 1, a double spring 2, and a detection member 3 for detecting the operating state of the electromagnetic relay, wherein the insulating frame 1 is installed in an outer cover 7. A receiving groove 101 is provided at the bottom of the insulating frame 1, a moving lead pin 4 is installed at one end of the receiving groove 101, and a static lead pin 5 is installed at the other end of the receiving groove 101, and both the moving lead pin 4 and the static lead pin 5 extend to the outside of the insulating frame 1.

[0035] See also Figure 3 and Figure 4 , the double reed 2 and the detection member 3 are both placed in the receiving groove 101. One end of the double reed 2 is connected to the moving lead pin 4, and the other end of the double reed 2 is provided with a moving contact 201, and the static lead pin 5 is provided with a static contact 501 corresponding to the moving contact 201, and the static contact 501 is located at the lower side of the moving contact 201. One end of the detection member 3 is provided with a detection pin 301, and the other end of the detection member 3 is provided with a detection contact 302 corresponding to the moving contact 201, and the detection contact 302 is located at the upper side of the moving contact 201. The detection pin 301 extends to the outside of the insulating frame 1, which is convenient for connection with the PCB board. Under normal conditions, the moving contact 201 is in contact with the detection contact 302. During detection, the operating state of the electromagnetic relay can be judged by whether the moving contact 201 is in contact with the detection contact 302, so that it has a detection function and increases its functionality.

[0036] In some embodiments, Figures 4 to 6 As shown, the detection member 3 includes a plug board 303 located on one side, an L-shaped detection contact 302 is provided at one end of the plug board 303, an extension plate 304 is obliquely provided at the other end of the plug board 303, and a detection pin 301 is vertically provided at one end of the extension plate 304 away from the plug board 303. In order to facilitate manufacturing, the detection pin 301, the detection contact 302, the plug board 303 and the extension plate 304 are conductive parts of an integrated structure, for example, made of copper.

[0037] like Figures 4 to 6As shown, an L-shaped limiting plate 102 is provided on the inner wall of the receiving groove 101, and a plug-in groove 103 is formed between the L-shaped limiting plate 102 and the insulating frame 1, and a plug-in plate 303 is partially plugged into the plug-in groove 103, and the detection contact 302 extends from the plug-in groove 103, and the extension plate 304 is located on one side of the double spring 2. With this structure, the detection member 3 is easy to install and will not affect the action of the double spring 2.

[0038] In some embodiments, Figure 4 and Figure 5 As shown, an insulating sleeve 305 is mounted on the extension plate 304, and the insulating sleeve 305 can be a heat shrink tube. The insulating sleeve 305 can prevent the extension plate 304 and the double spring 2 from interfering with each other.

[0039] In some embodiments, Figure 4 and Figure 7 As shown, the double spring 2 includes a first moving spring 202 and a second moving spring 203 of similar shape, and the second moving spring 203 is stacked on the first moving spring 202; one end of the two moving springs is fixedly connected through a moving contact 201, and the other end of the two moving springs is connected to the moving lead pin 4. The double-layer spring structure is used to improve the load capacity.

[0040] In some embodiments, Figure 3 and Figures 7 to 9 As shown, the upper end of the insulating frame 1 is equipped with an electromagnetic assembly 6, which includes an armature 601 and a push card 602 connected to the armature 601, and the push card 602 is used to push the double spring 2 to make the moving contact 201 and the static contact 501 contact; the push card 602 is extended toward the double spring 2 and provided with a push block 607, and the push block 607 is in contact with the driving part 204 of the double spring 2. The electromagnetic assembly 6 also includes a coil frame 603 arranged at the upper end of the insulating frame 1, and an iron core 604 is inserted into the coil frame 603. A yoke 605 is installed at one end of the coil frame 603, and an armature 601 corresponding to the iron core 604 is installed at the other end. A compression spring 606 is installed at the bottom of the yoke 605, and the compression spring 606 is used to press the armature 601.

[0041] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electromagnetic relay with a detection function, characterized in that: The invention comprises an insulating frame (1), a double spring (2) and a detection member (3) for detecting the operating state of an electromagnetic relay. The bottom of the insulating frame (1) is provided with a receiving groove (101). One end of the receiving groove (101) is provided with a moving lead pin (4), and the other end of the receiving groove (101) is provided with a static lead pin (5). The double spring (2) and the detection member (3) are both placed in the receiving groove (101). One end of the double spring (2) is connected to the moving lead pin (4). A moving contact (201) is arranged at the other end, and a static contact (501) corresponding to the moving contact (201) is arranged on the static lead pin (5); a detection pin (301) is arranged at one end of the detection member (3), and a detection contact (302) corresponding to the moving contact (201) is arranged at the other end, the detection pin (301) extends to the outside of the insulating frame (1), and the moving contact (201) is in contact with the detection contact (302) under normal conditions.

2. The electromagnetic relay with detection function as claimed in claim 1, characterized in that: The detection member (3) comprises a plug board (303) located on one side, one end of the plug board (303) is provided with an L-shaped detection contact (302), and the other end thereof is provided with an extension plate (304) obliquely, and the end of the extension plate (304) away from the plug board (303) is provided with the detection pin (301) in a vertical direction.

3. The electromagnetic relay with detection function as claimed in claim 2, characterized in that: An L-shaped limiting plate (102) is arranged on the inner wall of the accommodating groove (101), a plug-in groove (103) is formed between the L-shaped limiting plate (102) and the insulating frame (1), the plug-in plate (303) is partially plugged into the plug-in groove (103), the detection contact (302) extends out from the plug-in groove (103), and the extension plate (304) is located on one side of the double spring leaf (2).

4. The electromagnetic relay with detection function as claimed in claim 2, characterized in that: The extension plate (304) is sleeved with an insulating sleeve (305).

5. The electromagnetic relay with detection function as claimed in claim 4, characterized in that: The insulating sleeve (305) is a heat shrink tube.

6. The electromagnetic relay with detection function as claimed in claim 2, characterized in that: The detection pin (301), the detection contact (302), the plug board (303) and the extension board (304) are conductive parts of an integrated structure.

7. The electromagnetic relay with detection function as claimed in claim 1, characterized in that: The double reed (2) comprises a first moving reed (202) and a second moving reed (203) of similar shape, wherein the second moving reed (203) is stacked on the first moving reed (202); one end of the two moving reeds is fixedly connected via the moving contact (201), and the other ends of the two moving reeds are connected to the moving lead pin (4).

8. The electromagnetic relay with detection function as claimed in claim 1, characterized in that: An electromagnetic assembly (6) is installed at the upper end of the insulating frame (1), the electromagnetic assembly (6) comprising an armature (601) and a push card (602) connected to the armature (601), the push card (602) being used to push the double reed (2) so that the moving contact (201) and the static contact (501) are in contact; the push card (602) is provided with a push block (607) extending toward the double reed (2), the push block (607) being in abutment contact with a driving portion (204) of the double reed (2).

9. The electromagnetic relay with detection function as claimed in claim 8, characterized in that: The electromagnetic assembly (6) also includes a coil frame (603) arranged at the upper end of the insulating frame (1), an iron core (604) is inserted into the coil frame (603), a yoke (605) is installed at one end of the coil frame (603), and the armature (601) corresponding to the iron core (604) is installed at the other end.

10. The electromagnetic relay with detection function as claimed in claim 9, characterized in that: A compression spring (606) is installed at the bottom of the yoke (605), and the compression spring (606) is used to press the armature (601).

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