High-load electromagnetic relay

Abstract

The utility model provides a high-load electromagnetic relay, which comprises an outer shell, an insulating framework arranged in the outer shell, a yoke arranged on one side of the insulating framework and an armature arranged on the upper side of the yoke, and the yoke is connected with the armature through a movable contact spring. The movable contact spring is provided with an armature connecting part used for being connected with the armature, one end of the armature connecting part is provided with a protruding part in a protruding mode, and the other end of the armature connecting part is provided with a through groove. A first expansion part is arranged on one side of the protruding part, and the first expansion part and the protruding part are integrally arranged and form a movable contact connecting part used for installing a movable contact; the armature connecting part extends towards the interior of the through groove and is provided with a second expansion part, and the first expansion part and the second expansion part are used for increasing the flow guide area of the movable contact spring; the high-load electromagnetic relay provided by the utility model overcomes the defects of small load and poor voltage resistance of the existing electromagnetic relay.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic relays, in particular to a high-load electromagnetic relay. 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 moving spring is an important part of the electromagnetic relay. Figure 1 The existing movable spring piece has an armature connection part for mounting an armature, one side of the armature connection part is provided with a movable contact connection part for mounting a movable contact, and the other side of the armature connection part is provided with a through groove; in this structure, the flow conducting area of ​​the movable spring piece is small and the load is small. In addition, there is no insulating structure between the static contact assembly and the iron core on the existing insulating frame, the isolation effect is poor, and the pressure resistance of the relay is poor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a high-load electromagnetic relay to overcome the defects of the existing electromagnetic relays, that is, small load and poor pressure resistance.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a high-load electromagnetic relay, including an outer shell, an insulating frame installed in the outer shell, a yoke arranged on one side of the insulating frame and an armature placed on the upper side of the yoke, the yoke and the armature are connected through a moving spring; an armature connecting part for connecting with the armature is provided on the moving spring, one end of the armature connecting part is protrudingly provided with a protrusion, and the other end is provided with a through groove; a first expansion part is provided on one side of the protrusion, the first expansion part is integrally arranged with the protrusion and forms a moving contact connecting part for installing a moving contact; a second expansion part is extended from the armature connecting part toward the inside of the through groove, and the first expansion part and the second expansion part are used to increase the diversion area of ​​the moving spring.

[0008] In some embodiments, the insulating skeleton is provided with an iron core at a position corresponding to the armature, and the top end of the iron core protrudes from the insulating skeleton; the insulating skeleton is provided with a static contact assembly on the side away from the yoke, and an insulating stopper is provided at the upper end of the insulating skeleton between the static contact assembly and the iron core.

[0009] In some embodiments, the static contact assembly includes a first pin inserted into the insulating skeleton and a lower conductive contact arranged at the end of the first pin, a step portion is provided on one side of the upper end of the insulating skeleton, and the insulating stopper is provided on the step portion; the upper end of the first pin is placed on the step portion, and the side end of the first pin is abutted against the insulating stopper.

[0010] In some embodiments, the static contact assembly also includes a second pin plugged into the insulating frame and an upper fixed contact arranged at the end of the second pin, and the upper fixed contact is arranged opposite to the lower conductive contact; a moving contact is installed on the moving contact connecting part, and the moving contact is located between the upper fixed contact and the lower conductive contact.

[0011] In some embodiments, the insulating frame includes an upper frame, a lower frame and a core seat for connecting the upper frame and the lower frame, the step portion and the insulating block are integrally arranged on the upper frame, the core is installed in the core seat, and a coil is installed on the outer circumferential wall of the core seat.

[0012] In some embodiments, the yoke is L-shaped, and its lower part is inserted into the lower frame and connected to the iron core. The movable spring is L-shaped, and is provided with a yoke connecting part for connecting with the yoke; the yoke connecting part and the armature connecting part are symmetrically provided with connecting holes, and the outer walls of the armature and the yoke are symmetrically provided with connecting columns adapted to the connecting holes.

[0013] In some embodiments, the lower end of the yoke connecting portion is provided with a pin portion, the pin portion passes through the insulating frame and extends to the lower side thereof. The first pin and the second pin are both L-shaped, the first pin passes through the insulating frame and extends to the lower side thereof.

[0014] (III) Beneficial effects

[0015] The high-load electromagnetic relay provided by the utility model has the following advantages compared with the prior art:

[0016] 1) A first expansion part and a second expansion part are added. Through the cooperation of the first expansion part and the second expansion part, the flow guide area of ​​the moving spring piece can be effectively increased, thereby increasing the load of the electromagnetic relay;

[0017] 2) An insulating block is provided between the iron core and the static contact assembly. The provision of the insulating block can effectively increase the internal creepage distance and air distance, effectively avoid voltage breakdown, and thus improve the withstand voltage value and pressure resistance of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a structural schematic diagram of an existing movable reed;

[0020] Figure 2 This is a three-dimensional diagram of a high-load electromagnetic relay of the utility model;

[0021] Figure 3 This is an exploded diagram of a high-load electromagnetic relay of the utility model;

[0022] Figure 4 This is a three-dimensional diagram of a high-load electromagnetic relay of the utility model after removing the outer shell;

[0023] Figure 5 This is a stereoscopic diagram of another perspective of a high-load electromagnetic relay of the utility model after removing the outer shell;

[0024] Figure 6 This is a cross-sectional view of a high-load electromagnetic relay of the utility model after removing the outer shell;

[0025] Figure 7 This is a three-dimensional diagram of a moving reed of a high-load electromagnetic relay of the utility model;

[0026] Figure 8 This is a structural schematic diagram of a moving reed of a high-load electromagnetic relay of the utility model;

[0027] Fig. 9 This is a three-dimensional diagram of an insulating frame of a high-load electromagnetic relay of the utility model;

[0028] The names of the components corresponding to the various figure marks in the figure are: 1. outer shell; 2. insulating frame; 201. insulating block; 202. step portion; 203. upper frame; 204. lower frame; 205. core seat; 3. yoke; 4. armature; 5. moving spring; 501. armature connecting portion; 502. protrusion; 503. first extension portion; 504. second extension portion; 505. yoke connecting portion; 506. connecting hole; 507. pin portion; 508. through groove; 6. moving contact; 7. core; 8. static contact assembly; 801. first pin; 802. lower conductive contact; 803. second pin; 804. upper fixed contact; 9. coil. DETAILED DESCRIPTION

[0029] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0035] See also Figures 2 to 9 The utility model provides a high-load electromagnetic relay, comprising an outer shell 1, an insulating frame 2 installed in the outer shell 1, a yoke 3 arranged on one side of the insulating frame 2 and an armature 4 placed on the upper side of the yoke 3, and the yoke 3 and the armature 4 are connected by a moving spring 5.

[0036] See also Figure 7 and Figure 8 The movable spring piece 5 is provided with an armature connection part 501 for connecting with the armature 4, one end of the armature connection part 501 is provided with a protruding part 502, and the other end is provided with a through slot 508; a first expansion part 503 is provided on one side of the protruding part 502, and the first expansion part 503 is provided with the protruding part 502 and forms a movable contact connection part for installing the movable contact 6. The armature connection part 501 is provided with a second expansion part 504 extending toward the inside of the through slot 508, and the first expansion part 503 and the second expansion part 504 are used to increase the flow conduction area of ​​the movable spring piece 5. This structure can effectively increase the flow conduction area of ​​the movable spring piece, thereby increasing the load of the electromagnetic relay.

[0037] In some embodiments, Figures 4 to 6 As shown, the insulating frame 2 is provided with an iron core 7 at the position corresponding to the armature 4, the iron core 7 is vertically arranged, and the top of the iron core 7 protrudes from the upper end of the insulating frame 2. The insulating frame 2 is provided with a static contact assembly 8 on the side away from the yoke 3, and the upper end of the insulating frame 2 is provided with an insulating block 201 between the static contact assembly 8 and the iron core 7. The provision of the insulating block can effectively increase the internal creepage distance and air distance, effectively avoid voltage breakdown, and thus improve the withstand voltage value and withstand voltage of the relay.

[0038] In some embodiments, Figures 4 to 6 As shown, the static contact assembly 8 includes a first pin 801 plugged into the insulating frame 2 and a lower conductive contact 802 arranged at the end of the first pin 801. A step portion 202 is arranged on one side of the upper end of the insulating frame 2, and an insulating stopper 201 is arranged on the step portion 202; the upper end of the first pin 801 is placed on the step portion 202, and the side end of the first pin 801 abuts against the insulating stopper 201.

[0039] like Figure 5 and Figure 6As shown, the static contact assembly 8 also includes a second pin 803 plugged into the insulating frame 2 and an upper fixed contact 804 arranged at the end of the second pin 803, and the first pin 801 and the second pin 803 are respectively located on both sides of one end of the insulating frame 2. The upper fixed contact 804 is arranged opposite to the lower conductive contact 802, and the upper fixed contact 804 is located above the lower conductive contact 802. The moving contact 6 is installed on the moving contact connection part, and the moving contact 6 is located between the upper fixed contact 804 and the lower conductive contact 802.

[0040] In some embodiments, Figure 6 and Fig. 9 As shown, the insulating frame 2 includes an upper frame 203, a lower frame 204 and a core seat 205 for connecting the upper frame 203 and the lower frame 204, the step portion 202 and the insulating block 201 are integrally arranged on the upper frame 203, the core 7 is installed in the core seat 205, and the coil 9 is installed on the outer circumferential wall of the core seat 205. The yoke 3 is L-shaped, and its lower part is inserted into the lower frame 204 and connected to the core 7.

[0041] In some embodiments, Figure 7 As shown, the movable spring piece 5 is an L-shaped integrated structure, and a yoke connecting portion 505 for connecting with the yoke 3 is provided on the movable spring piece 5; the yoke connecting portion 505 and the armature connecting portion 501 are symmetrically provided with connecting holes 506, and the outer walls of the armature 4 and the yoke 3 are symmetrically provided with connecting columns adapted to connect with the connecting holes 506. The lower end of the yoke connecting portion 505 is provided with a pin portion 507, which passes through the insulating frame 2 and extends to the lower side thereof, so as to facilitate electrical connection.

[0042] In some embodiments, Figure 2 and Figure 3 As shown, the first pin 801 and the second pin 803 are both L-shaped, and the first pin 801 passes through the insulating frame 2 and extends to the lower side thereof to facilitate electrical connection.

[0043] 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.

[0044] 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. A high-load electromagnetic relay, characterized in that: The invention comprises an outer shell (1), an insulating frame (2) installed in the outer shell (1), a yoke (3) arranged on one side of the insulating frame (2), and an armature (4) arranged on the upper side of the yoke (3); the yoke (3) and the armature (4) are connected via a movable spring (5); an armature connecting portion (501) for connecting to the armature (4) is arranged on the movable spring (5); one end of the armature connecting portion (501) is protrudingly provided with a protruding portion (502), and the other end thereof is provided with a A through slot (508); a first expansion portion (503) is provided on one side of the protruding portion (502); the first expansion portion (503) is integrally provided with the protruding portion (502) and forms a moving contact connecting portion for mounting a moving contact (6); a second expansion portion (504) is provided on the armature connecting portion (501) extending toward the inside of the through slot (508); the first expansion portion (503) and the second expansion portion (504) are used to increase the flow guide area of ​​the moving reed (5).

2. The high-load electromagnetic relay according to claim 1, characterized in that: The insulating frame (2) is provided with an iron core (7) at a position corresponding to the armature (4), and the top end of the iron core (7) protrudes from the insulating frame (2); the insulating frame (2) is provided with a stationary contact assembly (8) at a side away from the yoke (3), and an insulating stopper (201) is provided at the upper end of the insulating frame (2) between the stationary contact assembly (8) and the iron core (7).

3. The high-load electromagnetic relay according to claim 2, characterized in that: The static contact assembly (8) comprises a first pin (801) plugged into the insulating frame (2) and a lower conductive contact (802) arranged at the end of the first pin (801); a step portion (202) is arranged on one side of the upper end of the insulating frame (2); the insulating block (201) is arranged on the step portion (202); the upper end of the first pin (801) is placed on the step portion (202), and the side end of the first pin (801) is abutted against the insulating block (201).

4. The high-load electromagnetic relay according to claim 3, characterized in that: The static contact assembly (8) further comprises a second pin (803) plugged into the insulating frame (2) and an upper fixed contact (804) arranged at the end of the second pin (803), wherein the upper fixed contact (804) is arranged opposite to the lower conductive contact (802); a moving contact (6) is mounted on the moving contact connecting portion, wherein the moving contact (6) is located between the upper fixed contact (804) and the lower conductive contact (802).

5. The high-load electromagnetic relay according to claim 3, characterized in that: The insulating frame (2) comprises an upper frame (203), a lower frame (204) and a core seat (205) for connecting the upper frame (203) and the lower frame (204); the step portion (202) and the insulating block (201) are integrally arranged on the upper frame (203); the core (7) is installed in the core seat (205); and a coil (9) is installed on the outer circumferential wall of the core seat (205).

6. The high-load electromagnetic relay according to claim 5, characterized in that: The yoke (3) is L-shaped, and its lower portion is inserted into the lower frame (204) and connected to the iron core (7).

7. The high-load electromagnetic relay according to claim 1, characterized in that: The movable spring (5) is L-shaped and is provided with a yoke connecting portion (505) for connecting to the yoke (3); the yoke connecting portion (505) and the armature connecting portion (501) are both symmetrically provided with connecting holes (506); and the outer walls of the armature (4) and the yoke (3) are both symmetrically provided with connecting columns adapted to the connecting holes (506).

8. The high-load electromagnetic relay according to claim 7, characterized in that: A pin portion (507) is provided at the lower end of the yoke connecting portion (505), and the pin portion (507) penetrates the insulating frame (2) and extends to the lower side thereof.

9. The high-load electromagnetic relay according to claim 4, characterized in that: The first pin (801) and the second pin (803) are both L-shaped, and the first pin (801) passes through the insulating frame (2) and extends to the lower side thereof.

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