Push rod structure of multi-group conversion crystal cover electromagnetic relay

Abstract

The utility model provides a push rod structure of a multi-group conversion crystal cover electromagnetic relay. The push rod structure comprises an auxiliary main push rod and an auxiliary push rod. The main push rod is fixed on a relay armature, the plurality of auxiliary push rods are fixed on the main push rod, the auxiliary push rods are parallel to the main push rod, the main push rod comprises a first type of main push rods and a second type of main push rods, and the auxiliary push rods comprise a first type of auxiliary push rods, a second type of auxiliary push rods and a third type of auxiliary push rods. The push rod is provided with the cylindrical front end, welding of the main push rod and the relay magnetic circuit armature can be achieved on the premise that a connecting method is not changed, the main push rod is provided with the square rear end, the connecting size precision of the main push rod and the auxiliary push rod can be guaranteed, and the main push rod is of a hardened bent structure. The overall strength of the main push rod and the auxiliary push rod after connection can be effectively improved, long-term use reliability of the electromagnetic relay is ensured, the push rod part can be assembled by using automatic equipment, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a push rod structure of a multi-group conversion crystal cover electromagnetic relay. Background Art

[0002] Crystal cover electromagnetic relays are widely used in various automatic control circuits due to their relatively high load-to-volume ratio and mature structure. They also have the advantage of physical isolation between input and output. A common input-to-output method is to use a push rod to push a reed.

[0003] As the requirements of user environment are gradually improved, the demand for multiple sets of product conversion is proposed under the same volume conditions. The traditional push rod structure and connection method are prone to breakage due to insufficient strength of the push rod itself and falling off due to insufficient connection strength due to the material processing technology and assembly connection technology, resulting in the failure to meet the long-life use requirements during the relay application process. At the same time, the dimensional accuracy and consistency cannot be guaranteed during assembly, and it is also easily limited by the assembly space, which is not convenient for installation and adjustment. For example, a push rod and base connection structure and an electromagnetic relay disclosed in the publication number CN220172005U are provided on the base to ensure that the friction of the push rod during the movement of the base is reduced, thereby improving the life of the push rod, and the push rod is processed into an integrated structure to ensure the strength of the push rod, but the integrated structure needs to be matched with a fixed base to be used, resulting in the push rod occupying a large space. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a push rod structure of a multi-group switching crystal cover electromagnetic relay.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a push rod structure of a multi-group conversion crystal cover electromagnetic relay, comprising an auxiliary main push rod and an auxiliary push rod; the main push rod is fixed on the relay armature, and a plurality of auxiliary push rods are fixed on the main push rod, the auxiliary push rods are parallel to the main push rod, the main push rod comprises a first type of main push rod and a second type of main push rod, and the auxiliary push rods comprise a first type of auxiliary push rod, a second type of auxiliary push rod, and a third type of auxiliary push rod.

[0007] The first type of main push rod includes a cylindrical section A and a rectangular section. The rectangular section is fixed to the end of the cylindrical section A through an extension section. The cylindrical section A, the rectangular section and the extension section are perpendicular to each other.

[0008] The lower end of the rectangular section is set as a plane, and a plurality of first-type auxiliary push rods and second-type auxiliary push rods are fixedly connected to the plane.

[0009] The first type of auxiliary push rod comprises a U-shaped rod, and a contact is fixedly connected to each of the two ends of the U-shaped rod. The second type of auxiliary push rod comprises an L-shaped rod, and a contact is fixedly connected to one end of the L-shaped rod.

[0010] The middle part of the U-shaped rod and the end of the L-shaped rod without the contact fixed thereto are parallel to the horizontal connecting surface and fixed on the horizontal connecting surface; when the number of contacts n is an even number, n / 2 first-class auxiliary push rods are used; when the number of contacts n is an odd number, n-1 / 2 first-class auxiliary push rods and a first-class main push rod and a second-class auxiliary push rod are used.

[0011] The second type of main push rod includes a cylindrical section A and a semicircular section, the semicircular section is fixed on the cylindrical section B through an extension section, and the cylindrical section B, the semicircular section and the extension section are perpendicular to each other.

[0012] A vertical connection surface is processed on one side surface of the semicircular segment, and a plurality of third-type auxiliary push rods are fixedly connected to the vertical connection surface.

[0013] The third type of auxiliary push rod is vertically perpendicular to the vertical connecting surface and parallel to the cylindrical section B.

[0014] The number of the third type of auxiliary push rods is the same as the number of the contacts.

[0015] The beneficial effects of the utility model are as follows: the push rod has a cylindrical front end, which can realize the welding of the main push rod and the relay magnetic circuit armature without changing the connection method; the main push rod has a square rear end, which can ensure the connection dimensional accuracy with the auxiliary push rod; the main push rod adopts a hardened bending structure, which can effectively improve the overall strength after the main and auxiliary push rods are connected and ensure the long-term use reliability of the electromagnetic relay; at the same time, the push rod part can be assembled using automated equipment, which greatly improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model;

[0019] In the figure: 1-first type main push rod, 100-cylindrical segment A, 101-rectangular segment, 11-horizontal connecting surface, 2-first type auxiliary push rod, 21-U-shaped rod, 3-second type auxiliary push rod, 31-L-shaped rod, 4-second type main push rod, 400-cylindrical segment B, 401-semicircular segment, 41-vertical connecting surface, 5-third type auxiliary push rod, 51-straight rod, 6-relay armature, 7-extension section, 8-contact. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0021] A push rod structure of a multi-group conversion crystal cover electromagnetic relay, including an auxiliary push rod and an auxiliary push rod; the main push rod is fixed on a relay armature 6, and a plurality of auxiliary push rods are fixed on the main push rod, the auxiliary push rods are parallel to the main push rod, the main push rod includes a first-type main push rod 1 and a second-type main push rod 4, and the auxiliary push rods include a first-type auxiliary push rod 2, a second-type auxiliary push rod 3, and a third-type auxiliary push rod 5.

[0022] like Figure 3 As shown, the first type of main push rod 1 and the second type of main push rod 4 are assembled at both ends of the relay armature 6, and the relay armature 6 drives the main push rod and the auxiliary push rod to realize the switching between the relay contacts.

[0023] Embodiment 1: A set of integral contacts is formed by using a first-type main push rod 1, a first-type auxiliary push rod 2, and a second-type auxiliary push rod 3. Figure 2 As shown, the first type of main push rod 1 includes a cylindrical section A100 and a rectangular section 101, the rectangular section 101 is fixed to the end of the cylindrical section A100 through an extension section 7, and the cylindrical section A100, the rectangular section 101 and the extension section 7 are perpendicular to each other. The cylindrical main push rod is welded to the relay armature by welding.

[0024] like Figure 2 As shown, the lower end of the rectangular section 101 is set as a plane, and a plurality of first-type auxiliary push rods 2 and second-type auxiliary push rods 3 are fixed on the plane. The rear end of the rectangle is fixed to the auxiliary push rod in a non-detachable manner, which can ensure the connection deformation and dimensional accuracy with the auxiliary push rod. The main push rod adopts a hardened bending structure, which can effectively improve the overall strength after the main and auxiliary push rods are connected and ensure the long-term use reliability of the electromagnetic relay. At the same time, the push rod part can be assembled using automated equipment, which greatly improves the assembly efficiency.

[0025] like Figure 2 As shown, the first type of auxiliary push rod 2 includes a U-shaped rod 21, and the two ends of the U-shaped rod 21 are respectively fixed with a contact 8. The U-shaped structure of the first type of auxiliary push rod can ensure the synchronization of the two contacts connected to it, and the U-shaped structure makes the contacts on it not only have support strength when they touch the relay contacts, but also have a certain elasticity to ensure contact stability. The second type of auxiliary push rod 3 includes an L-shaped rod 31, and one end of the L-shaped rod 31 is fixed with a contact 8. The second type of auxiliary push rod is mainly used as a supplementary part when the number of relay contacts is odd.

[0026] The middle part of the U-shaped rod 21 and the end of the L-shaped rod 31 not fixed with the contact 8 are parallel to the horizontal connection surface 11 and fixed on the horizontal connection surface 11; when the number of contacts n is an even number, n / 2 first-class auxiliary push rods 2 are used; when the number of contacts n is an odd number, n-1 / 2 first-class auxiliary push rods 2 and 1 first-class main push rod and 1 second-class auxiliary push rod 3 are used. Figure 2 As shown, a first type of auxiliary push rod 2 and a second type of auxiliary push rod 3 are respectively fixed to the lower end of the first type of main push rod so that the main push rod has three contact points.

[0027] The contact point composition method of Example 1 has better strength and contact effect.

[0028] Embodiment 2: A set of integral contacts is formed using the second type of main push rod 4 and the third type of auxiliary push rod. The second type of main push rod 4 includes a cylindrical section A100 and a semicircular section 401, wherein the semicircular section 401 is fixed on the cylindrical section B400 through the extension section 7, and the cylindrical section B400, the semicircular section 401, and the extension section 7 are perpendicular to each other. The cylindrical main push rod is welded to the relay armature by welding, and the rear end with a plane is fixed to the auxiliary push rod in an undetachable manner, which can ensure the deformation amount and dimensional accuracy of the connection with the auxiliary push rod. The main push rod adopts a hardened bending structure, which can effectively improve the overall strength after the main and auxiliary push rods are connected and ensure the long-term use reliability of the electromagnetic relay. At the same time, the push rod part can be assembled using automated equipment, which greatly improves the assembly efficiency.

[0029] A vertical connection surface 41 is processed on one side of the semicircular segment 401, and a plurality of third-type auxiliary push rods 5 are fixedly connected to the vertical connection surface 41. The third-type auxiliary push rods 5 are vertically perpendicular to the vertical connection surface 41 and parallel to the cylindrical segment B400. The number of the third-type auxiliary push rods 5 is the same as the number of the contacts.

[0030] This method makes it easier to fix the third type of auxiliary push rod on the second type of main push rod 4, and easier to adjust the distance between the contacts and position them.

[0031] At the same time, the main push rod is made of materials with high mechanical properties, high strength and easy welding. When appropriate welding parameters are selected, the lower plane and side plane of the main push rod are not easily deformed, which can further improve the welding accuracy.

[0032] More preferably, the auxiliary push rod is made of glass sealing or ceramic sealing material, which is convenient for independent adjustment after being connected to the main push rod, thereby improving the stability and efficiency of installation and adjustment.

Claims

1. A push rod structure of a multi-group conversion crystal cover electromagnetic relay, comprising an auxiliary push rod and a secondary push rod, characterized in that: The main push rod is fixed on the relay armature (6), and a plurality of auxiliary push rods are fixed on the main push rod. The auxiliary push rods are parallel to the main push rod. The main push rod includes a first-type main push rod (1) and a second-type main push rod (4). The auxiliary push rods include a first-type auxiliary push rod (2), a second-type auxiliary push rod (3), and a third-type auxiliary push rod (5).

2. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 1, characterized in that: The first type of main push rod (1) comprises a cylindrical section A (100) and a rectangular section (101), wherein the rectangular section (101) is fixed to the end of the cylindrical section A (100) via an extension section (7), and the cylindrical section A (100), the rectangular section (101) and the extension section (7) are perpendicular to each other.

3. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 2, characterized in that: The lower end of the rectangular section (101) is set as a plane, and a plurality of first-type auxiliary push rods (2) and second-type auxiliary push rods (3) are fixedly connected to the plane.

4. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 3, characterized in that: The first type of auxiliary push rod (2) comprises a U-shaped rod (21), and the two ends of the U-shaped rod (21) are respectively fixedly connected to a contact (8), and the second type of auxiliary push rod (3) comprises an L-shaped rod (31), and one end of the L-shaped rod (31) is fixedly connected to a contact (8).

5. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 4, characterized in that: The middle part of the U-shaped rod (21) and the end of the L-shaped rod (31) not fixed with the contact (8) are parallel to the horizontal connecting surface (11) and fixed on the horizontal connecting surface (11); when the number of contact points n is an even number, n / 2 first-type auxiliary push rods (2) are used; when the number of contact points n is an odd number, n-1 / 2 first-type auxiliary push rods (2) and the first-type main push rod (1) and the second-type auxiliary push rod (3) are used.

6. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 1, characterized in that: The second type of main push rod (4) comprises a cylindrical section A (100) and a semicircular section (401), wherein the semicircular section (401) is fixed on the cylindrical section B (400) via an extension section (7), and the cylindrical section B (400), the semicircular section (401) and the extension section (7) are perpendicular to each other.

7. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 6, characterized in that: A vertical connection surface (41) is processed on one side surface of the semicircular segment (401), and a plurality of third-type auxiliary push rods (5) are fixedly connected to the vertical connection surface (41).

8. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 7, characterized in that: The third type of auxiliary push rod (5) is vertically perpendicular to the vertical connecting surface (41) and parallel to the cylindrical section B (400).

9. The push rod structure of the electromagnetic relay with multiple switching crystal covers as claimed in claim 8, characterized in that: The number of the third type of auxiliary push rods (5) is the same as the number of the contacts.

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