A reed type vacuum contact mechanism

Abstract

The embodiment of the present invention discloses a reed-type vacuum contact mechanism, including a relatively arranged static contact group and a moving contact group, wherein the static contact group includes a static contact mounting plate installed on a horizontal moving device and a plurality of static contacts installed on the upper surface of the static contact mounting plate, and the moving contact group includes a moving contact mounting plate installed on a lifting mechanism and a plurality of moving contacts installed on the upper surface of the moving contact mounting plate, and the plurality of moving contacts are distributed along the length direction of the moving contact mounting plate, and the moving contact is a spring sheet of an L-shaped structure, including a horizontally arranged mounting portion and a vertically downwardly arranged conducting portion, and the conducting portion is integrally formed on the end of the mounting portion away from the moving contact mounting plate and is used to contact the static contact. The embodiment of the present invention utilizes the reed-type moving contact to make the static contact group and the moving contact group realize relative movement in the horizontal direction, so that the contact mechanism realizes stable contact and conduction under vacuum, and its structure is simple and the processing cost is low.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of contact mechanisms, and in particular to a reed type vacuum contact mechanism. Background Art

[0002] Generally, an electromagnetic contactor is a type of circuit switching device that uses electromagnetic principles to perform mechanical transmission and send current signals. Electromagnetic contactors are installed in various types of industrial equipment, machines, vehicles, etc., and the electromagnetic contactor may include: a main contact mechanism, which is used to implement or cut off the power supply to the load; and an auxiliary contact mechanism, which is used to implement or cut off the power supply to the electromagnetic coil of the main contact mechanism.

[0003] In the prior art, the electromagnetic relay used in a vacuum state controls the rise and fall of one of a pair of contacts, but the pair of contacts need to be fixed during installation, and their movement is not smooth; there is also an elastic probe type contact that uses the elastic force of a spring to achieve press-fit conduction, but its contact structure is relatively complex, the processing cost is high, the wires are not easy to fix, the wiring is troublesome, and it is not easy to install and maintain. Summary of the invention

[0004] To this end, an embodiment of the present invention provides a reed-type vacuum contact mechanism to solve the problem in the prior art that the two contacts of the electromagnetic relay are inconvenient to open and close for conduction operation.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solutions: a reed-type vacuum contact mechanism, comprising a relatively arranged static contact group and a moving contact group, the static contact group comprising a static contact mounting plate mounted on a horizontally moving device and a plurality of static contacts mounted on the upper surface of the static contact mounting plate, and the plurality of static contacts are distributed along the length direction of the static contact mounting plate, the moving contact group is arranged above the static contact group, comprising a moving contact mounting plate mounted on a lifting mechanism and a plurality of moving contacts mounted on the upper surface of the moving contact mounting plate, and the plurality of moving contacts are distributed along the length direction of the moving contact mounting plate, the moving contact is a spring sheet of an L-shaped structure, comprising a horizontally arranged mounting portion and a vertically downwardly arranged conducting portion, one end of the mounting portion is fixed on the upper surface of the moving contact mounting plate, and the other end extends out of the moving contact mounting plate in a direction close to the static contact mounting plate, and the conducting portion is integrally formed on the end of the mounting portion away from the moving contact mounting plate and is used to contact the static contact.

[0006] By adopting the above technical solution, the static contact group and the moving contact group are arranged relatively, a group of reed-type moving contacts are fixed in the moving contact group, and a group of static contacts are fixed in the static contact group. The static contacts are preferably square conductive blocks. The moving contact group is connected and fixed on the lifting mechanism, and the static contact group is installed on a horizontally movable device. When the contact mechanism works in a vacuum state, the static contact group can move linearly in the same plane, and when the static contact group moves to a specified position, the moving contact group fixed on the lifting mechanism drives the reed-type moving contact to be pressed down, so that the moving contact is turned on. The movable contact group is in contact with the upper surface of the static contact to conduct current, and the reed-type moving contact is in contact. When the static contact group moves horizontally and the moving contact group moves up and down, compared with the existing electromagnetic relay contact opening and closing, the technical solution of this embodiment utilizes the moving and static contact groups to achieve relative movement in the horizontal direction, so that the contact mechanism can achieve stable contact and conduction in a vacuum state. It has a simple structure and reduces the processing cost of the contacts. It can be used for a multi-contact structure by separately arranging a plurality of static contacts and moving contacts, so that the arrangement of the contacts is more reasonable, which is convenient for the opening and closing of the two contacts.

[0007] The embodiment of the present invention is also characterized in that the static contact is bolted to the static contact mounting plate, and a first copper nose for connecting an electric wire is fixedly connected to the non-contact end of the static contact, and the first copper nose is bolted to the static contact.

[0008] The embodiment of the present invention is also characterized in that a static contact cover plate for covering the non-contact end of the static contact is provided above the first copper nose, and the static contact cover plate is connected to the static contact bolt.

[0009] By adopting the above technical solution, a first copper nose is installed on the static contact, so that the wire is connected to the static contact through the first copper nose, and a static contact cover is provided to cover the non-contact end of the static contact, thereby avoiding the connection between the static contact and the wire being directly exposed to the outside, which not only achieves a neat and beautiful effect, but also protects the static contact and avoids the problem of vacuum ignition and discharge.

[0010] The embodiment of the present invention is also characterized in that the static contact cover plate is a plate structure manufactured and processed from PA6 material.

[0011] By adopting the above technical solution, the static contact cover plate is set to a plate structure made of PA6 material, which plays an insulating role and has good strength and mechanical properties.

[0012] The embodiment of the present invention is also characterized in that the mounting portion of the moving contact is bolted to the moving contact mounting plate, and a second copper nose for connecting an electric wire is fixedly connected to the end of the moving contact mounting portion away from the conducting portion, and the second copper nose is bolted to the moving contact.

[0013] The embodiment of the present invention is also characterized in that a moving contact cover plate for covering the moving contact mounting portion is provided above the mounting portion, and the moving contact cover plate is connected to the moving contact bolt.

[0014] By adopting the above technical solution, a second copper nose is installed on the moving contact, so that the wire is connected to the moving contact through the second copper nose, and a moving contact cover is provided to cover the installation part of the moving contact, thereby effectively preventing fallen dust from covering the contact surface and protecting the moving contact.

[0015] The embodiment of the present invention is also characterized in that the moving contact cover plate is a plate structure made of Sisteel material.

[0016] By adopting the above technical solution, the moving contact cover plate is set to be a plate structure made of Saigang material, which plays an insulating role and has better strength and mechanical properties.

[0017] The embodiment of the present invention is also characterized in that a plurality of wire grooves for fixing wiring are etched on the bottom surface of the moving contact mounting plate, and a threaded hole penetrating the moving contact mounting plate and for wiring to pass through is opened at one end of the wire groove.

[0018] By adopting the above technical solution, a plurality of wire grooves are etched on the bottom surface of the moving contact mounting plate, and a threaded hole penetrating the moving contact mounting plate is opened at one end of the wire groove, so that the wires connected to the moving contact pass through the threaded hole and are embedded in the wire groove from the bottom surface of the moving contact mounting plate, so that the arrangement and planning of the lines are safe and reliable, neat and beautiful, and convenient for maintenance and overhaul.

[0019] The embodiment of the present invention is also characterized in that the static contact mounting plate and the moving contact mounting plate are both plate structures made of PA6 material.

[0020] By adopting the above technical solution, both the static contact mounting plate and the moving contact mounting plate are set to be a plate structure made of PA6 material, which plays an insulating role and has good strength and mechanical properties.

[0021] The embodiment of the present invention has the following advantages: by relatively arranging a static contact group and a moving contact group, fixing a group of reed-type moving contacts in the moving contact group, fixing a group of static contacts in the static contact group, connecting and fixing the moving contact group on a lifting mechanism, and installing the static contact group on a horizontally movable device, when the contact mechanism works in a vacuum state, the static contact group can move linearly in the same plane, and when the static contact group moves to a specified position, the moving contact group fixed on the lifting mechanism drives the reed-type moving contact to be pressed down, so that the conducting part of the moving contact contacts the upper surface of the static contact to conduct current, and utilizes the reed-type moving contact to contact, under the operation of the static contact group moving horizontally and the moving contact group moving up and down, compared with the existing electromagnetic relay contact opening and closing, the technical solution of this embodiment realizes stable contact conduction in a vacuum state, has a simple structure, reduces the processing cost of the contacts, and by separately arranging a plurality of static contacts and moving contacts, can be used for a multi-contact structure, so that the arrangement of the contacts is more reasonable, and the opening and closing conduction of the two contacts are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0024] Figure 1 A schematic diagram of the overall structure of a reed-type vacuum contact mechanism provided in Example 1 of the present invention;

[0025] Figure 2 A schematic structural diagram of a stationary contact group of a reed type vacuum contact mechanism provided in Example 1 of the present invention;

[0026] Figure 3 A schematic structural diagram of a moving contact group of a reed type vacuum contact mechanism provided in Example 1 of the present invention;

[0027] Figure 4 A schematic structural diagram of a moving contact group of a reed type vacuum contact mechanism provided in Example 2 of the present invention.

[0028] In the figure: 1. static contact group; 11. static contact mounting plate; 12. static contact; 13. first copper nose; 14. static contact cover plate; 2. moving contact group; 21. moving contact mounting plate; 22. moving contact; 221. mounting part; 222. conducting part; 23. second copper nose; 24. moving contact cover plate; 3. wire groove; 4. threaded hole. DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1 As shown, the embodiment of the utility model provides a reed-type vacuum contact mechanism, including a static contact group 1 and a moving contact group 2 arranged relatively. The static contact group 1 includes a static contact mounting plate 11 mounted on a horizontal moving device and a plurality of static contacts 12 mounted on the upper surface of the static contact mounting plate 11, and the plurality of static contacts 12 are distributed along the length direction of the static contact mounting plate 11, and the plurality of static contacts 12 are bolted to the static contact mounting plate 11. A first copper nose 13 for connecting an electric wire is fixedly connected to the non-contact end of each static contact 12 (refer to Figure 2 ), and the first copper nose 13 is bolted to the static contact 12, and a static contact cover plate 14 for covering the non-contact end of the static contact 12 is provided above the first copper nose 13, thereby avoiding the connection between the static contact 12 and the wire from being directly exposed to the outside, which not only has a neat and beautiful effect, but also protects the static contact 12, and can avoid the problem of vacuum ignition and discharge, and the static contact cover plate 14 is bolted to the static contact 12, wherein the static contact mounting plate 11 and the static contact cover plate 14 are both plate structures made of PA6 material, thereby insulating the entire static contact group 1 and giving it better strength and mechanical properties.

[0032] The moving contact group 2 is arranged above the static contact group 1, and includes a moving contact mounting plate 21 mounted on the lifting mechanism and a plurality of moving contacts 22 mounted on the upper surface of the moving contact mounting plate 21, and the plurality of moving contacts 22 are distributed along the length direction of the moving contact mounting plate 21, wherein the moving contact 22 is an L-shaped spring sheet, including a horizontally arranged mounting portion 221 and a vertically downwardly arranged conducting portion 222 (refer to Figure 3), one end of the mounting portion 221 is bolted to the upper surface of the moving contact mounting plate 21, and the other end extends out of the moving contact mounting plate 21 in a direction close to the stationary contact mounting plate 11, and the conducting portion 222 is integrally formed on the end of the mounting portion 221 away from the moving contact mounting plate 21 and is used to contact the stationary contact 12. A second copper nose 23 for connecting an electric wire is fixedly connected to one end of the moving contact 22 mounting portion 221 away from the conducting portion 222, and the second copper nose 23 is bolted to the moving contact 22, and a moving contact cover plate 24 for covering the moving contact 22 mounting portion 221 is provided above the mounting portion 221, thereby effectively preventing fallen dust from covering the surface of the moving contact 22 and protecting the moving contact 22, and the moving contact cover plate 24 is bolted to the moving contact 22, wherein the moving contact cover plate 24 is a plate structure made of Saigang material, and the moving contact mounting plate 21 is a plate structure manufactured and processed by PA6 material, which insulates the entire moving contact group 2 and gives it better strength and mechanical properties.

[0033] A reed-type vacuum contact mechanism of an embodiment of the present invention is provided by relatively arranging a static contact group 1 and a moving contact group 2, fixing a group of reed-type moving contacts 22 in the moving contact group 2, fixing a group of static contacts 12 in the static contact group 1, connecting and fixing the moving contact group 2 on a lifting mechanism, and installing the static contact group 1 on a horizontally movable device. When the contact mechanism is working in a vacuum state, the static contact group 1 can move linearly in the same plane, and when the static contact group 1 moves to a specified position, the moving contact group 2 fixed on the lifting mechanism drives the reed-type moving contact group 2 to move to a specified position. The contact 22 is pressed down, so that the conducting part 222 of the moving contact 22 contacts the upper surface of the static contact 12, thereby conducting the current. The reed-type moving contact 22 is used to make the static contact group 1 and the moving contact group 2 move relative to each other. Compared with the existing electromagnetic relay contact opening and closing, the technical solution of this embodiment realizes stable contact conduction under a vacuum state. It has a simple structure and reduces the processing cost of the contacts. By separately arranging multiple static contacts 12 and moving contacts 22, it can be used for a multi-contact structure, making the arrangement of the contacts more reasonable and facilitating the opening and closing of the two contacts.

[0034] Example 2

[0035] The difference from Example 1 is that, Figure 1 and Figure 4 A plurality of wire grooves 3 for fixing the wiring are etched on the bottom surface of the moving contact mounting plate 21, and a threaded hole 4 is opened at one end of the wire groove 3 to penetrate the moving contact mounting plate 21 and pass the wiring, so that the wires connected to the moving contact 22 pass through the threaded hole 4 and are embedded in the wire groove 3 from the bottom surface of the moving contact mounting plate 21, so that the arrangement and planning of the lines are safe, reliable, neat and beautiful, and convenient for maintenance and repair.

[0036] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A reed type vacuum contact mechanism, characterized in that: The contact mechanism comprises a stationary contact group (1) and a moving contact group (2) arranged relatively to each other, the stationary contact group (1) comprising a stationary contact mounting plate (11) mounted on a horizontal moving device and a plurality of stationary contacts (12) mounted on the upper surface of the stationary contact mounting plate (11), and the plurality of stationary contacts (12) are distributed along the length direction of the stationary contact mounting plate (11), the moving contact group (2) is arranged above the stationary contact group (1), comprises a moving contact mounting plate (21) mounted on a lifting mechanism and a plurality of moving contacts (22) mounted on the upper surface of the moving contact mounting plate (21), and the plurality of The moving contact (22) is distributed along the length direction of the moving contact mounting plate (21); the moving contact (22) is a spring sheet of an L-shaped structure, comprising a horizontally arranged mounting portion (221) and a conducting portion (222) arranged vertically downward; one end of the mounting portion (221) is fixed on the upper surface of the moving contact mounting plate (21), and the other end extends out of the moving contact mounting plate (21) in a direction close to the stationary contact mounting plate (11); the conducting portion (222) is integrally formed on the end of the mounting portion (221) away from the moving contact mounting plate (21) and is used to contact the stationary contact (12); The stationary contact (12) is bolted to the stationary contact mounting plate (11), and a first copper nose (13) for connecting an electric wire is fixedly connected to the non-contact end of the stationary contact (12), and the first copper nose (13) is bolted to the stationary contact (12); A plurality of wire grooves (3) for fixing wiring are etched on the bottom surface of the moving contact mounting plate (21), and a threaded hole (4) penetrating the moving contact mounting plate (21) and for allowing wiring to pass through is provided at one end of the wire groove (3).

2. A reed type vacuum contact mechanism according to claim 1, characterized in that: A static contact cover plate (14) for covering the non-contact end of the static contact (12) is provided above the first copper nose (13), and the static contact cover plate (14) is bolted to the static contact (12).

3. A reed type vacuum contact mechanism according to claim 2, characterized in that: The static contact cover plate (14) is a plate-type structure made of PA6 material.

4. A reed type vacuum contact mechanism according to claim 1, characterized in that: The mounting portion (221) of the movable contact (22) is bolted to the movable contact mounting plate (21), and a second copper nose (23) for connecting an electric wire is fixedly connected to one end of the mounting portion (221) of the movable contact (22) away from the conducting portion (222), and the second copper nose (23) is bolted to the movable contact (22).

5. A reed type vacuum contact mechanism according to claim 4, characterized in that: A moving contact cover plate (24) for covering the moving contact (22) mounting portion (221) is provided above the mounting portion (221), and the moving contact cover plate (24) is bolted to the moving contact (22).

6. A reed type vacuum contact mechanism according to claim 5, characterized in that: The moving contact cover plate (24) is a plate structure made of Sisteel material.

7. A reed type vacuum contact mechanism according to claim 1, characterized in that: The static contact mounting plate (11) and the moving contact mounting plate (21) are both plate structures made of PA6 material.

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