Relay

Abstract

The utility model provides a relay, which comprises a shell, a coil support, a coil, an auxiliary contact terminal and an auxiliary contact, and is characterized in that the coil support is mounted on the shell; the coil bracket comprises a bracket main body and a protruding part; the bracket main body and the convex extension part are integrally connected; the protruding part is arranged on one side of the support body. The protruding part is provided with a first terminal hole. The coil sleeves the bracket main body; the auxiliary contact terminal is inserted into the first terminal hole and is in positioning connection with the protruding part; the auxiliary contact is arranged at the top of the shell and is electrically connected with the auxiliary contact terminal, at the moment, the auxiliary contact terminal is positioned and assembled on the coil bracket, so that the positioning precision between the auxiliary contact terminal and the convex extension part is improved, meanwhile, the bracket main body and the convex extension part are integrally connected, and the auxiliary contact terminal is assembled in the injection molding process; therefore, synchronous injection molding of the support body, the protruding part and the auxiliary contact terminal is facilitated, lead-type manual assembly is avoided, and assembly convenience of the coil support and the auxiliary contact terminal is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay. Background Art

[0002] With the development of science and technology, relays are automatic switch components with isolation functions. Relays are widely used in remote control, telemetry, and communication. Relays are automatic switches that use small currents to control large currents. In the prior art, the existing relays include a housing, a coil bracket, a coil, and a lead. The coil bracket is installed in the housing, the coil is sleeved in the bracket body, and the lead is connected to the coil bracket. At this time, the lead is connected to the coil bracket manually, so the position of the lead relative to the coil bracket deviates, resulting in poor assembly convenience of the existing relays. Utility Model Content

[0003] The utility model aims to provide a relay, wherein a coil support is installed on a shell; the coil support comprises a support body and a protruding portion; the support body and the protruding portion are connected in one piece; the protruding portion is arranged on one side of the support body; the protruding portion is provided with a first terminal hole; the coil is sleeved on the support body; the auxiliary contact terminal is inserted into the first terminal hole and is positioned and connected with the protruding portion; the auxiliary contact is arranged on the top of the shell and is electrically connected with the auxiliary contact terminal, at which time, the auxiliary contact terminal is positioned and assembled on the coil support so as to improve the positioning accuracy between the auxiliary contact terminal and the protruding portion, and at the same time, the support body and the protruding portion are connected in one piece, and the auxiliary contact terminal is assembled during the injection molding process, so as to facilitate synchronous injection molding of the support body, the protruding portion and the auxiliary contact terminal, avoiding the use of lead-type manual assembly, and improving the assembly convenience of the coil support and the auxiliary contact terminal.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A relay, applied to high voltage direct current, comprising:

[0006] case;

[0007] A coil bracket is installed on the housing; the coil bracket includes a bracket body and a protruding portion; the bracket body and the protruding portion are connected in an integral manner; the protruding portion is arranged on one side of the bracket body; the protruding portion is provided with a first terminal hole;

[0008] A coil, sleeved on the support body;

[0009] An auxiliary contact terminal is inserted into the first terminal hole and is positioned and connected with the protruding portion;

[0010] The auxiliary contact is arranged on the top of the housing and is electrically connected to the auxiliary contact terminal.

[0011] Optionally, one end of the auxiliary contact terminal is located in the first terminal hole, and an inner side wall of the first terminal hole squeezes the auxiliary contact terminal to fix the auxiliary contact terminal.

[0012] Optionally, the bracket body and the protruding portion are injection molded parts, and the auxiliary contact terminal is a conductive metal part;

[0013] When the bracket body and the protruding portion are integrally injection-molded, the auxiliary contact terminal is embedded in the protruding portion.

[0014] Optionally, a docking hole is provided at one end of the auxiliary contact terminal plugged into the first terminal hole;

[0015] An electrical connection piece is connected between the auxiliary contact and the auxiliary contact terminal; one end of the electrical connection piece contacts the auxiliary contact, and the other end passes through the protruding portion and contacts the inner wall of the docking hole.

[0016] Optionally, a contact hole is provided on the top of the protruding portion;

[0017] The docking hole is connected to the contact hole, and the other end of the electrical connection sheet passes through the contact hole and contacts the inner wall of the docking hole.

[0018] Optionally, the electrical connecting sheet includes a first main body and a first bending portion;

[0019] One end of the first body is connected to the auxiliary contact; the first bending portion is bent from the other end of the first body toward the auxiliary contact terminal and contacts the auxiliary contact terminal.

[0020] Optionally, the protruding portion has a first boss portion protruding upward, the first boss portion is arranged in the up-down direction, and the first bending portion abuts against the first boss portion.

[0021] Optionally, the protruding portion is provided with a second terminal hole, and the second terminal hole is arranged on one side of the first terminal hole;

[0022] The relay further comprises a coil terminal, which is inserted into the second terminal hole and is positioned and connected with the protruding portion.

[0023] Optionally, the second terminal hole and the first terminal hole are arranged in sequence along the length direction of the protruding portion;

[0024] The coil terminal and the auxiliary contact terminal are connected to the same protruding portion and are arranged side by side.

[0025] Optionally, the relay further includes an outer cover, which is connected to the housing and covers the electrical connection piece and the auxiliary contact.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] The utility model provides a relay, wherein a coil support is installed on a shell; the coil support comprises a support body and a protruding portion; the support body and the protruding portion are connected in an integral manner; the protruding portion is arranged on one side of the support body; the protruding portion is provided with a first terminal hole; the coil is sleeved on the support body; the auxiliary contact terminal is plugged into the first terminal hole and is positioned and connected with the protruding portion; the auxiliary contact is arranged on the top of the shell and is electrically connected with the auxiliary contact terminal, at which time, the auxiliary contact terminal is positioned and assembled on the coil support so as to improve the positioning accuracy between the auxiliary contact terminal and the protruding portion, and at the same time, the support body and the protruding portion are connected in an integral manner, and the auxiliary contact terminal is assembled during the injection molding process so as to facilitate synchronous injection molding of the support body, the protruding portion and the auxiliary contact terminal, thereby avoiding the use of lead-type manual assembly and improving the assembly convenience of the coil support and the auxiliary contact terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0029] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0030] Figure 1 A schematic diagram of a relay according to an embodiment of the present application is shown.

[0031] Figure 2 A partial schematic diagram of a relay according to an embodiment of the present application is shown.

[0032] Figure 3 A schematic diagram of a coil support and a coil of a relay according to an embodiment of the present application is shown.

[0033] Figure 4 A schematic diagram of an auxiliary contact terminal of a relay according to an embodiment of the present application is shown.

[0034] Figure 5 A schematic diagram of an electrical connection piece of a relay according to an embodiment of the present application is shown.

[0035] Reference numeral 100, relay;

[0036] 10. Shell;

[0037] 20, coil support; 21, support body; 22, protruding portion; 22a, first terminal hole; 22b, contact hole; 22c, second terminal hole; 221, first boss portion;

[0038] 30. Coil;

[0039] 40. Auxiliary contact terminal;

[0040] 50, auxiliary contact; 40a, docking hole; 51, electrical connection sheet; 511, first body; 512, first bending portion;

[0041] 60. Coil terminal;

[0042] 70. Outer cover. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0044] Please refer to the attached Figures 1 to 5 The embodiment of the present application provides a relay 100, which is applied to high voltage direct current, that is, an automatic switch that uses a small current to control the operation of a large current. The relay 100 includes a housing 10, a coil support 20, a coil 30, an auxiliary contact terminal 40 and an auxiliary contact 50. The coil support 20 is arranged on the inner side of the housing 10, the coil 30 is arranged on the inner side of the coil support 20, the auxiliary contact terminal 40 is arranged on the right side of the coil support 20, and the auxiliary contact 50 is arranged on the upper side of the coil support 20.

[0045] In the embodiment of the present application, the housing 10 serves as a supporting component of the relay 100 , and supports the coil support 20 , the coil 30 , the auxiliary contact terminal 40 and the auxiliary contact 50 .

[0046] In the embodiment of the present application, the coil bracket 20 is installed on the shell 10; the coil bracket 20 includes a bracket body 21 and a protruding portion 22; the bracket body 21 and the protruding portion 22 are connected in one piece; the protruding portion 22 is arranged on one side of the bracket body 21; the protruding portion 22 is provided with a first terminal hole 22a. At this time, the coil bracket 20 is arranged on the inner side of the shell 10, and the coil bracket 20 is installed on the shell 10 so that the coil bracket 20 is fixed to the shell 10. The coil bracket 20 consists of a bracket body 21 and a protruding portion 22, the protruding portion 22 is arranged on the right side of the bracket body 21, and the protruding portion 22 protrudes to the right from the bracket body 21. The bracket body 21 and the protruding portion 22 are connected in one piece, thereby ensuring the connection stability between the bracket body 21 and the protruding portion 22.

[0047] In the embodiment of the present application, the coil 30 is disposed on the inner side of the coil support 20 , and the coil 30 is sleeved on the support body 21 , so that the coil 30 is fixed to the coil support 20 .

[0048] In the embodiment of the present application, the auxiliary contact terminal 40 is arranged on the right side of the protruding portion 22, and the auxiliary contact terminal 40 is inserted into the first terminal hole 22a, so that the auxiliary contact terminal 40 is fixed to the protruding portion 22 through the first terminal hole 22a and is positioned and connected with the protruding portion 22; so as to improve the positioning accuracy between the auxiliary contact terminal 40 and the protruding portion 22. At the same time, the bracket body 21 and the protruding portion 22 are connected in one piece, and the auxiliary contact terminal 40 is assembled during the injection molding process, so that the bracket body 21, the protruding portion 22 and the auxiliary contact terminal 40 are synchronously injected, avoiding the use of lead-type manual assembly, and improving the assembly convenience of the coil bracket 20 and the auxiliary contact terminal 40.

[0049] In the embodiment of the present application, the auxiliary contact 50 is disposed on the top of the housing 10 and is electrically connected to the auxiliary contact terminal 40 , so that electricity is conducted between the auxiliary contact 50 and the auxiliary contact terminal 40 .

[0050] One end of the auxiliary contact terminal 40 is in the first terminal hole 22a, and the other end of the auxiliary contact terminal 40 is exposed to the external environment. The inner wall of the first terminal hole 22a and the outer wall of one end of the auxiliary contact terminal 40 are interference fit. The inner wall of the first terminal hole 22a squeezes the auxiliary contact terminal 40 to fix the auxiliary contact terminal 40, thereby ensuring the connection stability between the first terminal hole 22a and the auxiliary contact terminal 40.

[0051] The bracket body 21 and the protruding portion 22 are injection molded parts, and the auxiliary contact terminal 40 is a conductive metal part; when the bracket body 21 and the protruding portion 22 are integrally injection molded, the overall stability of the bracket body 21 and the protruding portion 22 is ensured, the bracket body 21 and the protruding portion 22 are molded quickly, and the auxiliary contact terminal 40 is embedded in the protruding portion 22, so that the auxiliary contact terminal 40 is fixed to the protruding portion 22.

[0052] The auxiliary contact terminal 40 is inserted into one end of the first terminal hole 22a and is provided with a docking hole 40a; an electrical connecting piece 51 is connected between the auxiliary contact 50 and the auxiliary contact terminal 40; the electrical connecting piece 51 is between the auxiliary contact 50 and the auxiliary contact terminal 40, one end of the electrical connecting piece 51 contacts the auxiliary contact 50, and the other end is penetrated by the protruding portion 22 and contacts the inner wall of the docking hole 40a, so that the auxiliary contact 50 can be electrically connected to the auxiliary contact terminal 40 through the electrical connecting piece 51, thereby facilitating the auxiliary contact 50 and the auxiliary contact terminal 40 to be energized.

[0053] A contact hole 22b is provided at the top of the protruding portion 22; the docking hole 40a is connected to the contact hole 22b, and the other end of the electrical connecting piece 51 passes through the contact hole 22b and contacts the inner wall of the docking hole 40a, so that the electrical connecting piece 51 can contact the docking hole 40a through the contact hole 22b, thereby facilitating the electrical connecting piece 51 and the auxiliary contact terminal 40 to be energized.

[0054] The electrical connection piece 51 includes a first main body 511 and a first bending portion 512; the first main body 511 is arranged on the upper side of the first bending portion 512, the first main body 511 is arranged in the horizontal direction, and the first bending portion 512 is arranged in the vertical direction. One end of the first main body 511 is connected to the auxiliary contact 50 so that the first main body 511 is fixed to the auxiliary contact 50; the first bending portion 512 is bent from the other end of the first main body 511 toward the auxiliary contact terminal 40 and contacts the auxiliary contact terminal 40 so that the auxiliary contact terminal 40 can be electrically connected to the auxiliary contact 50 through the first main body 511 and the first bending portion 512.

[0055] The protruding portion 22 has a first boss portion 221 protruding upward, and the first boss portion 221 is arranged in the up-down direction and is abutted by the first bent portion 512, so that the protruding portion 22 is in contact with the first bent portion 512, thereby facilitating the first bent portion 512 to align with the docking hole 40a, thereby ensuring the connection stability between the first bent portion 512 and the docking hole 40a.

[0056] The protruding portion 22 is provided with a second terminal hole 22c, and the second terminal hole 22c is arranged on one side of the first terminal hole 22a; the relay 100 also includes a coil terminal 60, which is inserted into the second terminal hole 22c and is positioned and connected to the protruding portion 22, so that the coil terminal 60 can be connected to the protruding portion 22 through the second terminal hole 22c, thereby improving the positioning accuracy between the coil terminal 60 and the protruding portion 22.

[0057] The second terminal hole 22c and the first terminal hole 22a are arranged in sequence along the length direction of the protruding portion 22; the coil terminal 60 and the auxiliary contact terminal 40 are connected to the same protruding portion 22 and are arranged side by side so that the second terminal hole 22c and the first terminal hole 22a face the same direction, thereby facilitating the external connection to simultaneously connect the coil terminal 60 and the auxiliary contact terminal 40.

[0058] The relay 100 also includes an outer cover 70, which is arranged on the upper side of the shell 10. The outer cover 70 is connected to the shell 10 so that the outer cover 70 is fixed to the shell 10. The outer cover 70 covers the electrical connection piece 51 and the auxiliary contact 50 to prevent liquid and dust from entering the electrical connection piece 51 and the auxiliary contact 50, thereby ensuring the performance of the electrical connection piece 51 and the auxiliary contact 50.

[0059] The housing 10 is provided with a buckle 11 , and the outer cover 70 is provided with a slot 70 a , which is buckled with the buckle 11 , so that the outer cover 70 is buckled and connected with the housing 10 through the slot 70 a and the buckle 11 .

[0060] Working process: the coil support 20 is connected to the housing 10 and exposed to the protruding portion 22, so that the coil support 20 is fixed to the housing. The auxiliary contact terminal 40 is positioned and connected with the protruding portion 22 through the first terminal hole 22a, so as to improve the positioning accuracy between the auxiliary contact terminal 40 and the protruding portion 22. At the same time, the support body 21 and the protruding portion 22 are connected in one piece, and the auxiliary contact terminal 40 is assembled during the injection molding process, so that the support body 21, the protruding portion 22 and the auxiliary contact terminal 40 are synchronously injected, avoiding the use of lead-type artificial assembly. The assembly convenience of the coil bracket 20 and the auxiliary contact terminal 40 is improved. The auxiliary contact 50 is fixed to the top of the coil bracket. The auxiliary contact 50 is electrically connected to the auxiliary contact terminal 40 through the electrical connecting piece 51, so that the auxiliary contact 50 and the auxiliary contact terminal 40 are energized. The outer cover 70 is connected to the shell 10, so that the outer cover 70 is fixed to the shell 10. The outer cover 70 covers the electrical connecting piece 51 and the auxiliary contact 50 to prevent liquid and dust from entering the electrical connecting piece 51 and the auxiliary contact 50, thereby ensuring the performance of the electrical connecting piece 51 and the auxiliary contact 50.

[0061] Compared with the prior art, the beneficial effects of the utility model are:

[0062] The utility model provides a relay 100, wherein a coil support 20 is mounted on a housing 10; the coil support 20 comprises a support body 21 and a protruding portion 22; the support body 21 and the protruding portion 22 are connected in an integral manner; the protruding portion 22 is arranged on one side of the support body 21; the protruding portion 22 is provided with a first terminal hole 22a; a coil 30 is sleeved on the support body 21; an auxiliary contact terminal 40 is plugged into the first terminal hole 22a and is positioned and connected with the protruding portion 22; an auxiliary contact 50 is arranged on the top of the housing 10 and is connected with the protruding portion 22; The auxiliary contact terminal 40 is electrically connected. At this time, the auxiliary contact terminal 40 is positioned and assembled on the coil bracket 20, so as to improve the positioning accuracy between the auxiliary contact terminal 40 and the protruding portion 22. At the same time, the bracket body 21 and the protruding portion 22 are connected in one piece, and the auxiliary contact terminal 40 is assembled during the injection molding process, so that the bracket body 21, the protruding portion 22 and the auxiliary contact terminal 40 can be injection molded simultaneously, avoiding the use of lead-type manual assembly, thereby improving the assembly convenience of the coil bracket 20 and the auxiliary contact terminal 40.

[0063] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0065] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A relay, characterized in that: Applied to high voltage direct current, the relay comprises: case; A coil bracket is installed on the housing; the coil bracket includes a bracket body and a protruding portion; the bracket body and the protruding portion are connected in an integral manner; the protruding portion is arranged on one side of the bracket body; the protruding portion is provided with a first terminal hole; A coil, sleeved on the support body; An auxiliary contact terminal is inserted into the first terminal hole and is positioned and connected with the protruding portion; The auxiliary contact is arranged on the top of the shell and is electrically connected to the auxiliary contact terminal.

2. The relay according to claim 1, characterized in that: One end of the auxiliary contact terminal is located in the first terminal hole, and the inner side wall of the first terminal hole squeezes the auxiliary contact terminal to fix the auxiliary contact terminal.

3. The relay according to claim 2, characterized in that: The bracket body and the protruding portion are injection molded parts, and the auxiliary contact terminal is a conductive metal part; When the bracket body and the protruding portion are integrally injection-molded, the auxiliary contact terminal is embedded in the protruding portion.

4. The relay according to claim 1, characterized in that: One end of the auxiliary contact terminal inserted into the first terminal hole is provided with a docking hole; An electrical connection piece is connected between the auxiliary contact and the auxiliary contact terminal; one end of the electrical connection piece contacts the auxiliary contact, and the other end passes through the protruding portion and contacts the inner wall of the docking hole.

5. The relay according to claim 4, characterized in that: A contact hole is provided on the top of the protruding portion; The docking hole is connected to the contact hole, and the other end of the electrical connection sheet passes through the contact hole and contacts the inner wall of the docking hole.

6. The relay according to claim 4, characterized in that: The electrical connecting piece includes a first main body and a first bending portion; One end of the first body is connected to the auxiliary contact; the first bending portion is bent from the other end of the first body toward the auxiliary contact terminal and contacts the auxiliary contact terminal.

7. The relay according to claim 6, characterized in that: The protruding portion protrudes upward with a first boss portion, which is arranged in the up-down direction and abutted by the first bent portion.

8. The relay according to claim 1, characterized in that: The protruding portion is provided with a second terminal hole, and the second terminal hole is arranged on one side of the first terminal hole; The relay further comprises a coil terminal, which is inserted into the second terminal hole and is positioned and connected with the protruding portion.

9. The relay according to claim 8, characterized in that: The second terminal hole and the first terminal hole are arranged in sequence along the length direction of the protruding portion; The coil terminal and the auxiliary contact terminal are connected to the same protruding portion and are arranged side by side.

10. The relay according to claim 4, characterized in that: The relay further comprises an outer cover, which is connected to the housing and covers the electrical connection piece and the auxiliary contact.

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