A new type of contactor

Abstract

The present invention belongs to the technical field of contactors, and particularly refers to a new type of contactor. A new type of contactor includes a main body, in which a moving touch plate, a static contact and a push rod are arranged, and the moving touch plate is sleeved on the upper end of the push rod; an auxiliary component is arranged in the main body, and a connecting rod is arranged in the main body, one end of the connecting rod is located at the upper end of the push rod, and the other end is located at the upper end of the auxiliary component, and the moving touch plate is brought into contact with the static contact by moving the push rod, and the connecting rod drives the auxiliary component to conduct. The present invention utilizes the lever principle through the connecting rod, so that when the moving touch plate is in contact with the static contact, the auxiliary component is also conducted, so that it can be judged that the internal moving touch plate and the static contact have been in contact through the conduction of the auxiliary component. If the internal moving touch plate and the static contact should not be disconnected but are suddenly disconnected, it can also be known through the non-conduction of the auxiliary component, thereby avoiding circuit problems such as internal short circuit.

Description

Technical Field

[0001] The invention belongs to the technical field of contactors, and in particular relates to a new type of contactor. Background Art

[0002] Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, power distribution and power consumption. In a broad sense, contactors refer to electrical appliances in industrial electricity that use current flowing through a coil to generate a magnetic field to close the contacts in order to control the load. Therefore, it can be seen that the contactor is placed on the circuit for use, and it is an internal structure, so it is difficult to judge whether the contactor is open or closed, that is, whether the moving contact plate is in contact with the static contact. If the moving contact plate is required to contact the static contact during use, but the moving contact plate and the static contact are not in contact, it will cause a short circuit, which will lead to problems in the circuit. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of contactor, which uses the lever principle through a connecting rod so that when the moving contact plate is in contact with the static contact piece, the auxiliary component is also turned on. Therefore, the auxiliary component can be turned on, so that it can be judged that the internal moving contact plate and the static contact piece have been in contact, thereby solving the problem that the existing contactor cannot confirm whether the internal moving contact plate and the static contact piece are turned on.

[0004] The object of the present invention is achieved in that:

[0005] A new type of contactor includes a main body, in which a moving contact plate, a static contact piece and a push rod are arranged, and the moving contact plate is sleeved on the upper end of the push rod; an auxiliary component is arranged in the main body, and a connecting rod is arranged in the main body, one end of the connecting rod is located at the upper end of the push rod, and the other end is located at the upper end of the auxiliary component. The push rod is moved to make the moving contact plate contact with the static contact piece, and the connecting rod drives the auxiliary component to conduct.

[0006] On the basis of the above scheme, further improved or preferred schemes also include:

[0007] Preferably, the auxiliary component includes a movable reed and a static reed, one end of the movable reed is located on the upper end of the static reed; one end of the connecting rod is located on the upper end of the movable reed, and the connecting rod pushes the movable reed by moving the push rod, thereby making the movable reed and the static reed contact each other.

[0008] Preferably, one end of the movable spring is bent into an arc portion, and when the push rod moves so that the connecting rod pushes the movable spring, the arc portion contacts the static spring.

[0009] Preferably, the connecting rod comprises a pushing end and a pushed end, the pushed end is located at the upper end of the push rod, and the pushing end is located at the upper end of the moving spring;

[0010] A placement groove is provided in the pushed end, and a spring is arranged in the placement groove, and the connecting rod is reset by the spring.

[0011] Preferably, arc slopes are formed on both side surfaces of the pushing end.

[0012] Preferably, a fixing frame is arranged in the main body, a static contact is arranged on the fixing frame, and the fixing frame is provided with a boss 1 and a boss 2, the boss 1 is provided with the moving spring sheet, and the boss 2 is provided with a static spring sheet.

[0013] Preferably, one end of the movable spring piece and the static spring piece are both provided with a bending portion, the boss one and the boss two are both provided with a connecting hole, a coil two is arranged in the connecting hole, and the bending portion abuts against the coil two.

[0014] Preferably, a mounting groove is provided at the upper end of the fixing frame, the connecting rod is placed in the mounting groove, and a cover plate is provided at the upper end of the mounting groove, the cover plate covers the mounting groove, and the spring is located between the cover plate and the connecting rod.

[0015] Preferably, a coil frame is arranged in the main body, a static iron core is arranged in the coil frame, a moving iron core is arranged in the static iron core, and the push rod is arranged in the moving iron core;

[0016] Open retaining rings are sleeved on both sides of the push rod, and the open retaining rings are respectively against the lower end surface of the moving iron core and the upper end surface of the moving touch plate;

[0017] An electric shock box is arranged between the coil frame and the fixing frame, and the push rod is provided with a convex edge, and the lower end surface of the convex edge abuts against the upper end surface of the electric shock box.

[0018] Preferably, reinforcing ribs are provided on both sides of the fixing frame, and the moving touch plate abuts against the reinforcing ribs; magnets are provided on both sides of the electric shock box, and the fixing frame is provided with a clamping groove, and the magnet is clamped in the clamping groove.

[0019] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0020] The present invention utilizes the lever principle through the connecting rod, so that when the moving contact plate contacts the stationary contact piece, the auxiliary component is also turned on, so that it can be judged that the internal moving contact plate and the stationary contact piece have contacted through the conduction of the auxiliary component. If the internal moving contact plate and the stationary contact piece should be disconnected but suddenly disconnect, it can also be known through the non-conduction of the auxiliary component, thereby avoiding circuit problems such as internal short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present invention;

[0022] Figure 2 It is a simplified cross-sectional structure diagram with the center of the pushed end as the section line;

[0023] Figure 3 It is a simplified cross-sectional structure diagram with the center of the push end as the section line;

[0024] Figure 4 It is a simplified structural diagram of the parts related to the connecting rod;

[0025] Figure 5 yes Figure 4 The enlarged structural diagram of A in the middle;

[0026] Figure 6 It is a simplified structural diagram of the fixing frame and the connecting rod;

[0027] Figure 7 It is a simplified diagram of the structure of the fixing frame and auxiliary components;

[0028] Figure 8 It is a schematic diagram of the coil frame.

[0029] In the figure: 1-main body; 2-moving contact plate; 3-static contact piece; 4-push rod; 5-connecting rod; 6-moving spring; 7-static spring; 8-arc portion; 9-pushing end; 10-pushed end; 11-placing groove; 12-spring; 13-arc slope; 14-fixing frame; 15-boss one; 16-boss two; 17-bending portion; 18-connecting hole; 19-coil two; 20-installing groove; 21-cover plate; 22-coil frame; 23-moving iron core; 24-static iron core; 25-opening retaining ring; 26-electric shock box; 27-convex edge; 28-reinforcement rib; 29-magnet; 30-clamping groove; 31-coil one. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0031] Combination Figure 1 , Figure 2 and Figure 4 It can be known that a new type of contactor includes a main body 1, in which a moving contact plate 2, a static contact member 3 and a push rod 4 are arranged, and the moving contact plate 2 is sleeved on the upper end of the push rod 4.

[0032] At the same time, the main body 1 here also includes other components that complete the basic functions of the contactor product in addition to the necessary features, such as Figure 2 and Figure 8 The main body 1 is provided with a coil frame 22, a static iron core 24 is provided in the coil frame 22, a moving iron core 23 is provided in the static iron core 24, and the push rod 4 is provided in the moving iron core 23. A coil 1 31 is wound on the coil frame 22, and the coil 1 31 extends outward and is connected to a DC power supply, so that current and voltage are input to the interior through the coil 1 31.

[0033] Therefore, in actual use, when the coil 31 wound on the coil frame 22 is energized, a magnetic field is generated between the moving iron core 23 and the static iron core 24, and a magnetic force is generated at the magnetic gap between the moving iron core 23 and the static iron core 24, which is the electromagnetic attraction force. At this time, due to the effect of the magnetic force, the moving iron core 23 is driven to move in the direction of reducing the magnetic gap, that is, to move upward, and then drive the push rod 4 to move upward, so that the moving contact plate 2 moves upward, and then the moving contact plate 2 touches the static contact 3, thereby realizing the basic function of the contactor.

[0034] However, since these are all internal operations, it is impossible to determine whether the movable contact plate 2 and the stationary contact member 3 are in contact with each other. Therefore, the present invention also provides an auxiliary component in the main body 1. At the same time, a connecting rod 5 is provided in the main body 1, and one end of the connecting rod 5 is located at the upper end of the push rod 4, and the other end is located at the upper end of the auxiliary component. Figure 6 and Figure 7 It can be seen that the auxiliary component is connected to the coil 2 19 and transmits signals to the outside through the coil 2 19 .

[0035] Therefore, in actual use, when the push rod 4 moves upward, thereby causing the moving touch plate 2 to move upward, the push rod 4 also pushes one end of the connecting rod 5 to move upward. At this time, the lever principle is used to move the other end of the connecting rod 5 downward, thereby causing the connecting rod 5 to drive the auxiliary component to conduct. Therefore, when the moving touch plate 2 touches the static contact 3, the auxiliary component is also turned on, so that the coil 2 19 can transmit a signal to the outside to determine whether the moving touch plate 2 and the static contact 3 touch each other. Therefore, when the moving touch plate and the static contact are disconnected from each other due to some reason, it can be known by the coil 2 19 transmitting a signal to the outside, thereby avoiding circuit problems such as internal short circuits.

[0036] Combination Figure 3 and Figure 4 It can be seen that the auxiliary component includes a movable spring piece 6 and a static spring piece 7, and one end of the movable spring piece 6 is located on the upper end of the static spring piece 7. At the same time, one end of the connecting rod 5 is located on the upper end of the movable spring piece 6.

[0037] Therefore, in actual use, when the push rod 4 moves upward, thereby moving the moving contact plate 2 upward, the push rod 4 also pushes one end of the connecting rod 5 upward. At this time, the lever principle is used to move the other end of the connecting rod 5 downward, thereby causing the connecting rod 5 to push the moving spring 6 downward, thereby causing the moving spring 6 to contact the static spring 7, that is, the auxiliary component is turned on, and the signal is transmitted to the outside through the coil 2 19. That is, a simple lever structure is used to ensure the stability of the structure and achieve simultaneity, that is, when the moving contact plate 2 touches the static contact 3, the moving spring 6 and the static spring 7 also contact each other. Moreover, this structure is easy to process and install.

[0038] Look specifically Figure 5It can be seen that one end of the moving spring piece 6 is bent into an arc portion 8. Therefore, when the push rod 4 moves so that the connecting rod 5 pushes the moving spring piece 6, the arc portion 8 and the static spring piece 6 contact each other, that is, through a semicircular arc contact, that is, point contact, so that it closes when it is touched and opens when it is released, thereby effectively increasing the reliability of opening and closing.

[0039] At the same time, the connecting rod 5 includes a pushing end 9 and a pushed end 10, wherein the two side surfaces of the pushing end 9 are formed with arc inclined surfaces 13, thereby forming point contact, and then closing when touched and opening when released, thereby effectively increasing the reliability of opening and closing.

[0040] Furthermore, a placement groove 11 is provided in the pushed end 10, and a spring 12 is provided in the placement groove 11. Therefore, when the push rod 4 moves so that the connecting rod 5 pushes the moving spring 6 downward, so that the moving spring 6 and the static spring 6 contact each other, the spring 12 is in a compressed state. Therefore, when the coil 1 31 is not energized by the outside world, the connecting rod 5 is reset due to the elasticity of the spring 12. That is, a simple structure is adopted, thereby ensuring the stability of the structure, and it is easy to process and install.

[0041] At the same time, the spring 12 also plays a role in ensuring that when disconnected, the pushing end of the connecting rod 5 is lifted, and the movable spring leaf 6 is also in a disconnected state.

[0042] like Figure 6 As shown, the installation structure of the connecting rod 5 can be known: first, a fixing frame 14 is arranged in the main body 1, and a mounting groove 20 is opened at the upper end of the fixing frame 14, and a cover plate 21 is arranged at the upper end of the mounting groove 20.

[0043] Therefore, during the installation process, the connecting rod 5 is first placed in the installation groove 20, and then the cover plate 21 is covered, so that the connecting rod 5 and the spring 12 are limited by the cover plate 21, and the internal structure is also protected and the appearance is taken into consideration. That is, a simple structure is adopted to ensure the stability of the structure, and it is easy to process and install.

[0044] Combination Figure 3 and Figure 7 It can be seen that the fixed frame 14 is provided with a static contact 3, and the fixed frame 14 is provided with a boss 15 and a boss 2 16. At the same time, the boss 15 and the boss 2 16 are both provided with a connecting hole 18, and the connecting hole 18 is provided with a coil 2 19.

[0045] Therefore, during the installation process, the movable spring 6 and the static spring 7 are first placed on the boss 15 and the boss 2 16 respectively by the spring embedding method, and one end of the movable spring 6 and the static spring 7 is left exposed outside and in the connecting hole 18.

[0046] At the same time, both the moving spring piece 6 and the stationary spring piece 7 are provided with a bending portion 17 , and the bending portion 17 and the second coil 19 abut against each other, so that information is transmitted to the outside through the second coil 19 .

[0047] Combination Figure 2 , Figure 4 and Figure 5 , it can be seen that the installation method of the push rod 4 is: first, both sides of the push rod 4 are sleeved with open retaining rings 25, and the push rod 4 is provided with a convex edge 27. At the same time, an electric shock box 26 is provided between the coil frame 22 and the fixing frame 14. The electric shock box 26 is used to prevent the powder layer and related foreign matter generated due to the relative movement between the push rod 4 and the fixing frame 14, thereby protecting the internal structure and various components, thereby extending the service life.

[0048] Therefore, during the installation process, the push rod 4 is first passed through the electric shock box 26 and the moving iron core 23 from top to bottom until the lower surface of the convex edge 27 abuts against the electric shock box 26, that is, it reaches the designated position, and then the moving touch plate 2 is sleeved on the upper end of the push rod 4. At this time, the open retaining ring 25 is sleeved on both sides of the push rod 4 and abuts against the lower surface of the moving iron core 23 and the upper surface of the moving touch plate 2, that is, the connection between the parts is limited and stabilized by the open retaining ring 25. That is, a simple structure is adopted, thereby ensuring the stability of the structure, and it is easy to process and install.

[0049] Combination Figure 2 and Figure 7 It can be seen that reinforcing ribs 28 are provided on both sides of the fixing frame 14, and the movable touch plate 2 abuts against the reinforcing ribs 28. The clearance between the reinforcing ribs 28 and the movable touch plate 2 is matched to prevent the movable seat assembly from rotating along the axis of the push rod, and also ensure that the movable touch plate 2 is vertically moved up without left and right deviation.

[0050] At the same time, magnets 29 are arranged on both sides of the electric shock box 26, and the fixing frame 14 is provided with a clamping groove 30, and the magnets 29 are clamped in the clamping groove 30. The magnets 29 play a role in resisting the burning of the arc.

[0051] The specific working process of this program is as follows:

[0052] When the coil 31 wound on the coil frame 22 is energized, a magnetic field is generated between the moving iron core 23 and the static iron core 24, and a magnetic force is generated at the magnetic gap between the moving iron core 23 and the static iron core 24, which is the electromagnetic attraction force. At this time, due to the effect of the magnetic force, the moving iron core 23 is driven to move in the direction of reducing the magnetic gap, that is, to move upward, and then drive the push rod 4 to move upward, so that when the moving touch plate 2 moves upward, the moving touch plate 2 touches the static contact member 3. At this time, the push rod 4 also pushes one end of the connecting rod 5 to move upward. At this time, the lever principle is used to move the other end of the connecting rod 5 downward, so that the connecting rod 5 drives the auxiliary component to conduct.

[0053] Therefore, when the moving touch plate 2 and the stationary contact 3 touch each other, the auxiliary component is also turned on, so the coil 2 19 can be used to transmit a signal to determine whether the moving touch plate 2 and the stationary contact 3 touch each other. Therefore, when the moving touch plate and the stationary contact are disconnected from each other due to some reason, the coil 2 19 can be used to transmit a signal to avoid internal short circuit and other circuit problems.

[0054] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of contactor, characterized in that: The invention comprises a main body (1), wherein a moving touch plate (2), a stationary contact piece (3) and a push rod (4) are arranged in the main body (1), and the moving touch plate (2) is sleeved on the upper end of the push rod (4); an auxiliary component is arranged in the main body (1), and a connecting rod (5) is arranged in the main body (1), one end of the connecting rod (5) is located at the upper end of the push rod (4), and the other end is located at the upper end of the auxiliary component, and the moving touch plate (2) is brought into contact with the stationary contact piece (3) by the movement of the push rod (4), and the connecting rod (5) drives the auxiliary component to conduct; The auxiliary component comprises a movable reed (6) and a stationary reed (7), one end of the movable reed (6) being located above the stationary reed (7); the other end of the connecting rod (5) being located above the movable reed (6), and the connecting rod (5) being moved by the push rod (4) so ​​as to push the movable reed (6), thereby making the movable reed (6) and the stationary reed (7) contact each other; One end of the movable spring piece (6) is bent to form an arc portion (8), and when the push rod (4) moves so that the connecting rod (5) pushes the movable spring piece (6), the arc portion (8) and the stationary spring piece (6) contact each other; The connecting rod (5) comprises a pushing end (9) and a pushed end (10), the pushed end (10) is located at the upper end of the push rod (4), and the pushing end (9) is located at the upper end of the movable spring leaf (6); The pushed end (10) is provided with a placement groove (11), and a spring (12) is arranged in the placement groove (11), and the connecting rod (5) is reset by the spring (12); A fixing frame (14) is arranged in the main body (1), a static contact member (3) is arranged on the fixing frame (14), and the fixing frame (14) is provided with a boss 1 (15) and a boss 2 (16), the boss 1 (15) is provided with the moving spring piece (6), and the boss 2 (16) is provided with a static spring piece (7); The movable spring piece (6) and the static spring piece (7) are both provided with a bent portion (17) at one end, the boss 1 (15) and the boss 2 (16) are both provided with a connecting hole (18), a coil 2 (19) is provided in the connecting hole (18), and the bent portion (17) abuts against the coil 2 (19); The upper end of the fixing frame (14) is provided with a mounting groove (20), the connecting rod (5) is placed in the mounting groove (20), and a cover plate (21) is provided at the upper end of the mounting groove (20), the cover plate (21) covers the mounting groove (20), and the spring (12) is located between the cover plate (21) and the connecting rod (5).

2. A novel contactor according to claim 1, characterized in that: Arc inclined surfaces (13) are formed on both side surfaces of the pushing end (9).

3. A novel contactor according to claim 2, characterized in that: The main body (1) is provided with a coil frame (22), a static iron core (24) is provided in the coil frame (22), a moving iron core (23) is provided in the static iron core (24), and the push rod (4) is provided in the moving iron core (23); Both sides of the push rod (4) are sleeved with open retaining rings (25), and the open retaining rings (25) are respectively against the lower end surface of the moving iron core (23) and the upper end surface of the moving contact plate (2); An electric shock box (26) is arranged between the coil frame (22) and the fixing frame (14), and the push rod (4) is provided with a convex edge (27), and the lower end surface of the convex edge (27) abuts against the upper end surface of the electric shock box (26).

4. A novel contactor according to claim 3, characterized in that: Reinforcing ribs (28) are provided on both sides of the fixing frame (14), and the moving touch plate (2) abuts against the reinforcing ribs (28); magnets (29) are provided on both sides of the electric shock box (26), and the fixing frame (14) is provided with a snap-fitting groove (30), and the magnet (29) is snap-fitted into the snap-fitting groove (30).

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