Electric relay of oil-immersed motor

Abstract

The utility model discloses an electric relay of an oil-immersed motor, and relates to the technical field of oil-immersed motors. The device comprises an oil tank, an oil immersion type motor is arranged in the oil tank, the top of the oil tank is rotatably connected with a cover plate, an electric relay is arranged in the oil tank, and a sealing mechanism is arranged in the oil tank. When a worker overhauls an oil immersion type motor and an electric relay in an oil tank, the cover plate is rotated to enable the pressing rod to leave the stress rod, the supporting shaft drives the stress rod and the push rod to reset, the spring telescopic rod is pressed to relieve locking of the sealing cover, the sealing box is opened for overhauling, and after overhauling is completed, the cover plate is pressed to enable the pressing rod to push the stress rod, so that the oil immersion type motor and the electric relay are overhauled. And the push rod is driven to push the sealing cover, the spring telescopic rod locks the sealing cover again, it is ensured that the electric relay is not affected by oil gas, the effect of sealing protection on the electric relay is achieved through the design, and the sealing performance and safety of the electric relay are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-immersed motors, in particular to an electric relay for oil-immersed motors. Background Art

[0002] Electric relays are commonly used to control the start and stop of electric motors and to protect them. They play a vital role in the electrical control system of electric motors, especially oil-immersed motors, which are often cooled in an oil tank to provide good thermal management and extend the life of the motor.

[0003] In the existing technology, electric relays are in oil and gas environments for a long time, and it is difficult to solve the problem of sealing and protecting them, which leads to oil contamination or leakage into the circuit, causing the electric relay to short-circuit or be damaged. Therefore, we propose an electric relay with an oil-immersed motor. Utility Model Content

[0004] The purpose of the utility model is to provide an electric relay for an oil-immersed motor. Through the mutual cooperation between the sealing box, sealing cover and locking plate and other components of the sealing mechanism, when the staff inspects the oil-immersed motor and the electric relay in the oil tank, they rotate the cover plate to make the pressure rod leave the stress rod, the support shaft drives the stress rod and the push rod to reset, press the spring telescopic rod to release the lock of the sealing cover, open the sealing box for inspection, and after completion, press the cover plate to make the pressure rod push the stress rod, drive the push rod to push the sealing cover, and the spring telescopic rod re-locks the sealing cover to ensure that the electric relay is not affected by oil and gas. This design achieves the effect of sealing and protecting the electric relay, improves the sealing and safety of the electric relay, and solves the existing problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an electric relay for an oil-immersed motor, comprising an oil tank, an oil-immersed motor disposed inside the oil tank, a cover plate rotatably connected to the top of the oil tank, an electric relay disposed inside the oil tank, a wire disposed on the side of the electric relay, an end of the wire away from the side of the electric relay being electrically connected to the circumferential surface of the oil-immersed motor, and a sealing mechanism disposed inside the oil tank;

[0007] The sealing mechanism includes a sealing box, which is fixedly connected to the inside of the oil tank. A sealing cover is slidably connected to the side of the sealing box. A support shaft is rotatably connected to the inside of the oil tank. A force-bearing rod is fixedly connected to the circumferential surface of the support shaft. A push rod is fixedly connected to the circumferential surface of the support shaft. The bottom of the cover plate is fixedly connected to a pressure rod.

[0008] Furthermore, a locking block is fixedly connected to the top of the sealing box, a spring telescopic rod is provided on the side of the locking block, and a locking plate is fixedly connected to the top of the sealing cover for locking the sealing cover.

[0009] Furthermore, a torsion spring is fixedly connected to the interior of the oil tank, and one end of the torsion spring away from the side of the oil tank is fixedly connected to the circumferential surface of the support shaft, the purpose of which is to ensure that the support shaft can be automatically reset and reduce manual intervention.

[0010] Furthermore, the top of the force-bearing rod is located on the displacement track of the pressure rod, and the bottom of the sealing cover is located on the displacement track of the push rod, the purpose of which is to ensure that the movement of the pressure rod can push the force-bearing rod, and ensure that the movement of the push rod can push the sealing cover.

[0011] Furthermore, an oil drain mechanism is provided inside the oil tank, and the oil drain mechanism includes a slide groove, which is opened inside the oil tank, and a baffle is slidably connected inside the slide groove. An oil drain port is provided on the side of the oil tank, the purpose of which is to discharge the oil inside the oil tank when repairing the oil-immersed motor and electric relay, so as to facilitate maintenance by the staff.

[0012] Furthermore, a return spring is fixedly connected to the bottom of the baffle, and one end of the return spring away from the bottom of the baffle is fixedly connected to the inner wall of the oil tank, so as to ensure that the baffle can be automatically reset and reduce manual intervention.

[0013] Furthermore, the top of the baffle is located on the displacement track of the force-bearing rod, the purpose of which is to ensure that the movement of the force-bearing rod can press the baffle.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model cooperates with each other among the components such as the sealing box, the sealing cover and the locking plate of the sealing mechanism. When the staff inspects the oil-immersed motor and the electric relay in the oil tank, they rotate the cover plate to make the pressure rod leave the stress rod, the support shaft drives the stress rod and the push rod to reset, press the spring telescopic rod to release the lock of the sealing cover, open the sealing box for inspection, and after completion, press the cover plate to make the pressure rod push the stress rod, drive the push rod to push the sealing cover, and the spring telescopic rod re-locks the sealing cover to ensure that the electric relay is not affected by oil and gas. This design achieves the effect of sealing and protecting the electric relay, and improves the sealing and safety of the electric relay.

[0016] 2. This utility model utilizes the interaction between the baffle, oil drain port, and return spring components of the oil drain mechanism. When the cover is opened, the support shaft, via the torsion spring, drives the force-bearing rod back to its original position, freeing the top of the baffle from stress. The return spring then allows the baffle to move away from the oil drain port, draining the used oil from the tank. After maintenance is complete, the force-bearing rod rotates and presses the baffle downward within the chute, closing the oil drain port. This design effectively drains the tank, simplifies the draining process, ensures a tight seal, and improves work efficiency and safety.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the three-dimensional appearance of the utility model from the first perspective;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section from the first perspective;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model from a second viewing angle three-dimensional cross-section;

[0022] Figure 4 For this utility model Figure 2 A is a schematic diagram of the three-dimensional magnified structure;

[0023] Figure 5 For this utility model Figure 3 Schematic diagram of the three-dimensional magnified structure of B.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Oil tank; 2. Oil-immersed motor; 3. Cover plate; 4. Electric relay; 5. Electric wires; 6. Sealing mechanism; 61. Sealing box; 62. Sealing cover; 63. Support shaft; 64. Force rod; 65. Push rod; 66. Locking block; 67. Spring telescopic rod; 68. Locking plate; 69. Torsion spring; 610. Pressure rod; 7. Oil drain mechanism; 71. Slide; 72. Baffle; 73. Oil drain port; 74. Return spring. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 The utility model is an electric relay for an oil-immersed motor, comprising an oil tank 1, an oil-immersed motor 2 being arranged inside the oil tank 1, a cover plate 3 being rotatably connected to the top of the oil tank 1, an electric relay 4 being arranged inside the oil tank 1, a wire 5 being arranged on the side of the electric relay 4, an end of the wire 5 away from the side of the electric relay 4 being electrically connected to the circumferential surface of the oil-immersed motor 2, and a sealing mechanism 6 being arranged inside the oil tank 1;

[0028] The sealing mechanism 6 includes a sealing box 61, which is fixedly connected to the inside of the oil tank 1. A sealing cover 62 is slidably connected to the side of the sealing box 61. A support shaft 63 is rotatably connected to the inside of the oil tank 1. The circumferential surface of the support shaft 63 is fixedly connected to a force rod 64. The circumferential surface of the support shaft 63 is fixedly connected to a push rod 65. The bottom of the cover plate 3 is fixedly connected to a pressure rod 610.

[0029] As shown in the figure, a locking block 66 is fixedly connected to the top of the sealing box 61, a spring telescopic rod 67 is provided on the side of the locking block 66, and a locking plate 68 is fixedly connected to the top of the sealing cover 62, the purpose of which is to lock the sealing cover 62.

[0030] As shown in the figure, a torsion spring 69 is fixedly connected to the inside of the fuel tank 1. The end of the torsion spring 69 away from the side of the fuel tank 1 is fixedly connected to the circumferential surface of the support shaft 63. The purpose is to ensure that the support shaft 63 can be automatically reset to reduce manual intervention.

[0031] As shown in the figure, the top of the force-bearing rod 64 is located on the displacement track of the pressure rod 610, and the bottom of the sealing cover 62 is located on the displacement track of the push rod 65. The purpose is to ensure that the movement of the pressure rod 610 can push the force-bearing rod 64, and ensure that the movement of the push rod 65 can push the sealing cover 62.

[0032] As shown in the figure, an oil drain mechanism 7 is provided inside the oil tank 1. The oil drain mechanism 7 includes a slide 71. The slide 71 is opened inside the oil tank 1. A baffle 72 is slidably connected inside the slide 71. An oil drain port 73 is opened on the side of the oil tank 1. Its purpose is to drain the oil inside the oil tank 1 when repairing the oil-immersed motor 2 and the electric relay 4, so as to facilitate maintenance by the staff.

[0033] As shown in the figure, a return spring 74 is fixedly connected to the bottom of the baffle 72, and one end of the return spring 74 away from the bottom of the baffle 72 is fixedly connected to the inner wall of the oil tank 1. The purpose is to ensure that the baffle 72 can be automatically reset to reduce manual intervention.

[0034] As shown in the figure, the top of the baffle 72 is located on the displacement track of the force-bearing rod 64, and its purpose is to ensure that the force-bearing rod 64 can press the baffle 72 when it moves.

[0035] A specific application of this embodiment is: when the staff needs to inspect the oil-immersed motor 2 and the electric relay 4 inside the oil tank 1, the staff rotates the cover plate 3, so that the pressure rod 610 leaves the top of the force-bearing rod 64, and the support shaft 63 drives the force-bearing rod 64 and the push rod 65 to reset through the torsion spring 69. At this time, the staff presses the spring telescopic rod 67, so that the spring telescopic rod 67 leaves the inside of the locking plate 68, releases the lock on the sealing cover 62, opens the sealing box 61, and inspects or replaces the electric relay 4. When the inspection is completed, the staff presses the cover plate 3, so that the pressure rod 610 pushes the force-bearing rod 64, and the force-bearing rod 64 is forced to rotate through the support shaft 63. The push rod 65 rotates to push the sealing cover 62, so that the spring telescopic rod 67 re-enters the inside of the locking plate 68, locks the sealing box 61 and the sealing cover 62, and ensures that the electric relay 4 is not affected by oil and gas.

[0036] After the cover 3 is opened, the support shaft 63 drives the force-bearing rod 64 to reset through the torsion spring 69, so that the top of the baffle 72 is not under force. At this time, the baffle 72 moves inside the slide groove 71 due to the elasticity of the reset spring 74, so that the baffle 72 leaves the oil drain port 73, so that the used oil in the oil tank 1 is discharged. When the maintenance is completed, the force-bearing rod 64 rotates to press the baffle 72, so that the baffle 72 moves downward inside the slide groove 71, blocking the oil drain port 73 and closing the oil drain port 73.

[0037] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electric relay for an oil-immersed motor, characterized in that: The invention comprises an oil tank (1), an oil-immersed motor (2) is provided inside the oil tank (1), a cover plate (3) is rotatably connected to the top of the oil tank (1), an electric relay (4) is provided inside the oil tank (1), a wire (5) is provided on the side of the electric relay (4), an end of the wire (5) away from the side of the electric relay (4) is electrically connected to the circumferential surface of the oil-immersed motor (2), and a sealing mechanism (6) is provided inside the oil tank (1); The sealing mechanism (6) includes a sealing box (61), the sealing box (61) is fixedly connected to the inside of the oil tank (1), a sealing cover (62) is slidably connected to the side of the sealing box (61), a support shaft (63) is rotatably connected to the inside of the oil tank (1), a force-bearing rod (64) is fixedly connected to the circumferential surface of the support shaft (63), a push rod (65) is fixedly connected to the circumferential surface of the support shaft (63), and a pressure rod (610) is fixedly connected to the bottom of the cover plate (3).

2. The electric relay for an oil-immersed motor according to claim 1, characterized in that: The top of the sealing box (61) is fixedly connected to a locking block (66), a spring telescopic rod (67) is provided on the side of the locking block (66), and the top of the sealing cover (62) is fixedly connected to a locking plate (68).

3. The electric relay for an oil-immersed motor according to claim 2, characterized in that: A torsion spring (69) is fixedly connected to the interior of the oil tank (1), and one end of the torsion spring (69) away from the side of the oil tank (1) is fixedly connected to the circumferential surface of the support shaft (63).

4. The electric relay for an oil-immersed motor according to claim 3, characterized in that: The top of the force-bearing rod (64) is located on the displacement track of the pressure rod (610), and the bottom of the sealing cover (62) is located on the displacement track of the push rod (65).

5. The electric relay for an oil-immersed motor according to claim 4, characterized in that: An oil discharge mechanism (7) is provided inside the oil tank (1), and the oil discharge mechanism (7) includes a slide groove (71). The slide groove (71) is opened inside the oil tank (1), and a baffle (72) is slidably connected inside the slide groove (71). An oil discharge port (73) is opened on the side of the oil tank (1).

6. The electric relay for an oil-immersed motor according to claim 5, characterized in that: A return spring (74) is fixedly connected to the bottom of the baffle (72), and one end of the return spring (74) away from the bottom of the baffle (72) is fixedly connected to the inner wall of the oil tank (1).

7. The electric relay for an oil-immersed motor according to claim 6, characterized in that: The top of the baffle (72) is located on the displacement track of the force-bearing rod (64).

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