CN200949562Y - a submersible pump - Google Patents

Abstract

The utility model provides a submersible pump, includes the casing, establishes base and the exhalant canal in the casing bottom, the casing is open-ended drum shape downwards, is equipped with power connection in the upper end of casing, is equipped with the motor in the casing, the power cord and the waterproof power connection switch-on of motor, the motor is including frame, rotor, stator, bearing and impeller, its characterized in that the lower extreme fixed seal of frame and casing makes and forms the confined space between frame and the casing is inside, is equipped with the oil filler point on the casing, injects a certain amount of vegetable oil into confined space by the oil filler point. The advantages are that: 1. vegetable oil is injected into the shell, so that the motor can be cooled; 2. the vegetable oil can also insulate the electric conductor from the shell, thereby preventing electric leakage and being safer to use; 3. the oil injection hole is arranged at the upper end of the shell, so that the vegetable oil is more convenient to fill into the shell; 4. the vegetable oil can play a lubricating effect in the motor; 5. the service life of the motor is prolonged.

Description

a submersible pump

【Technical field】

The utility model relates to a submersible pump.

【Background technique】

Most of the existing submersible pumps on the market include a pump body, and a motor is installed in the pump body. The motor generally includes a bearing seat, a bearing, a rotor, a stator, and a capacitor. The power line of the motor is connected to an external power supply. The water is drawn out from the outlet channel through the impeller arranged on the bearing.

However, during the operation of the motor of the submersible pump, it is easy to generate heat during high-speed operation, and the cooling effect of the existing motor is not ideal, so that the motor is kept at high temperature for a long time, which can easily cause damage to the motor and shorten the service life of the submersible pump. . Moreover, there is no insulation between the pump body and the motor of the existing submersible pump, which easily causes electric shock accidents.

Therefore, the utility model further improves the submersible pump aiming at the above-mentioned deficiencies.

【Content of invention】

The purpose of the utility model is to provide a submersible pump which can continuously cool the motor, has good insulation effect and is convenient for adding vegetable oil.

The purpose of this utility model is achieved in that:

A submersible pump, comprising a housing, a base provided at the bottom of the housing and a water outlet channel, the housing is in the shape of a cylinder opening downwards, a power connector is provided at the upper end of the housing, and a motor is provided in the housing , the power line of the motor is connected to the waterproof power connector, the motor includes an organic base, a rotor, a stator, a bearing and an impeller, and it is characterized in that the lower end of the base and the housing are fixed and sealed so that the base and the housing A sealed space is formed inside, and an oil injection hole is arranged at the upper end of the casing, and a certain amount of vegetable oil is injected into the sealed space through the oil injection hole.

A submersible pump as described above is characterized in that the vegetable oil liquid level in the sealed space is set above the motor.

A submersible pump as described above is characterized in that the interior of the plant motor communicates with the sealed space, and the vegetable oil in the sealed space can flow into the interior of the motor.

A submersible pump as described above is characterized in that the oil injection hole is sealed by a screw plug.

A submersible pump as described above is characterized in that the base is fixed on the bottom of the casing, and a cavity for setting the impeller is provided in the middle of the base, and one end of the bearing shaft of the motor extends into the cavity, so that the impeller It is fixed on the rotating shaft of the bearing, and the side of the cavity is provided with a channel communicating with the water outlet channel.

A submersible pump as described above is characterized in that the bottom of the housing is provided with a slot, the base of the motor is stuck on the slot, and the base supports the motor so that the base is fixed in the slot of the housing between the base.

A submersible pump as described above is characterized in that a sealing ring is provided on the side of the base.

A submersible pump as described above is characterized in that a rubber pad is provided between the housing and the base.

A submersible pump as described above is characterized in that a filter is provided on the cavity inlet at the bottom of the base.

A submersible pump as described above is characterized in that a handle is provided at the upper end of the casing.

The beneficial effects of the utility model are as follows: 1. Vegetable oil is injected in the casing, which can cool the motor; 2. Vegetable oil can also insulate the conductor from the shell to prevent leakage and make the use safer; 3. The oil injection hole is located in the The upper end of the housing is more convenient when pouring vegetable oil into the housing; 4. Vegetable oil can lubricate the motor; 5. Increase the service life of the motor; 6. Its structure is simple, practical, and has broad market prospects.

【Description of drawings】

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail;

Fig. 1 is the structural representation of the utility model.

【Detailed ways】

As shown in the figure, a submersible pump referred to in the utility model includes a housing 1, a base 2 and a water outlet channel 3 arranged at the bottom of the housing 1, and the housing 1 is in the shape of a cylinder opening downwards. A power connector 100 is provided on the upper end of the housing 1, and a motor 4 is arranged inside the housing 1. The power cord 40 of the motor 4 is connected to the waterproof power connector 100. The motor 4 includes an organic base 5, a rotor 50, The stator 51, the bearing 52 and the impeller 53, the base 5 and the lower end of the housing 1 are fixed and sealed, so that a sealed space 6 is formed between the base 5 and the inside of the housing 1, and an oil injection hole 101 is provided at the upper end of the housing 1, A certain amount of vegetable oil 7 is injected into the sealed space 6 through the oil injection hole 101, so that the motor 4 is immersed in the vegetable oil. When in use, the vegetable oil 7 plays the role of insulation and cooling of the motor.

The utility model can also set the liquid level of the vegetable oil 7 injected into the sealed space 6 above the motor 4, so that the whole motor 4 is immersed in the vegetable oil 7, so that the effect of cooling and insulating the motor is better. In order to make the vegetable oil 7 flow into the inside of the motor 4, and lubricate the bearing of the motor 4, so that the service life of the motor is longer, the inside of the motor 4 is communicated with the sealed space 6. In this embodiment, the motor 4 can The wiring hole 41 of the power cord 40 communicates with the sealed space 6, so that the vegetable oil 7 in the sealed space 6 flows into the inside of the motor 4. In order to prevent short circuits, the power cord 40 is made of waterproof material.

Wherein said base 2 is fixed on the bottom of housing 1, is provided with the cavity 8 of impeller 53 in the middle part of base 2, and one end of the bearing 52 rotating shaft of described motor 4 stretches in the cavity 8, and impeller 53 is fixed on On the rotating shaft of the bearing 52, the side of the cavity 8 is provided with a channel 9 communicating with the water outlet channel 3. During work, the rotation of the impeller 53 drives water to enter the water outlet channel 3 from the channel 9, and the end of the water outlet channel 3 can be It is connected with the water outlet pipe so that the water is discharged along the water outlet channel.

In this embodiment, after a certain amount of vegetable oil 7 is injected into the sealed space 6 through the oil injection hole 101 , the oil injection hole 101 is sealed by the screw plug 10 . In order to fix the motor 4, a card slot 11 is provided at the bottom of the housing 1, the base 5 of the motor 4 is stuck on the card slot 11, and the base 2 supports the motor 4, and between the housing 1 and the base 2 There is a rubber pad 12 between them, so that the machine base 5 is fixed between the slot 11 of the housing 1 and the base 2. In order to prevent the vegetable oil in the sealed space 6 from leaking out, a sealing ring 13 is provided on the side of the machine base 5.

The utility model is provided with filter net 14 on the entrance of cavity 8 at the bottom of the base 2, so that the submersible pump can filter the water source when pumping water. In order to carry the submersible pump conveniently, a handle 15 is also provided on the upper end of the casing 1 of the submersible pump.

In order to make the insulation performance of the utility model better, the housing 1 can also be made of plastic. When the utility model is in use, the vegetable oil in the shell of the submersible pump plays the role of cooling and lubricating the motor, and the insulation effect is better, so that the service life of the submersible pump is increased and the use is safer. There is an oil injection hole on the shell, which is more convenient to add vegetable oil, especially after the submersible pump has been working for a period of time.

Claims (10)

1, a kind of submersible pump, include housing (1), be located at the base (2) and the exhalant canal (3) of housing (1) bottom, described housing (1) is the drum under shed, be provided with power connection (100) in the upper end of housing (1), in housing (1), be provided with motor (4), the power line (40) of described motor (4) is connected with waterproof power connector (100), described motor (4) includes support (5), rotor (50), stator (51), bearing (52) and impeller (53), the lower end fixing seal that it is characterized in that described support (5) and housing (1), make between support (5) and housing (1) inside and form seal space (6), be provided with oil hole (101) in housing (1) upper end, in seal space (6), inject a certain amount of vegetable oil (7) by oil hole (101).

2, a kind of submersible pump according to claim 1 is characterized in that vegetable oil (7) liquid level in the described seal space (6) is located at the top of motor.

3, a kind of submersible pump according to claim 1 and 2 is characterized in that described inside of planting motor (4) communicates with seal space (6), and the vegetable oil (7) in the seal space (6) can flow into the inside of motor (4).

4, a kind of submersible pump according to claim 3 is characterized in that described oil hole (101) is sealed by plug screw (10).

5, a kind of submersible pump according to claim 1, it is characterized in that described base (2) is fixed on the bottom of housing (1), be provided with the cavity (8) that impeller (53) are set at the middle part of base (2), one end of bearing (52) rotating shaft of described motor (4) stretches in the cavity (8), impeller (53) is fixed in the rotating shaft of bearing (52), and the side of described cavity (8) is provided with the passage (9) that communicates with exhalant canal (3).

6, a kind of submersible pump according to claim 1, the bottom that it is characterized in that described housing (1) is provided with draw-in groove (11), the support (5) of motor (4) is stuck on the draw-in groove (11), described base (2) supports motor (4), and support (5) is fixed between the draw-in groove (11) and base (2) of housing (1).

7, a kind of submersible pump according to claim 1 is characterized in that the side of described support (5) is provided with seal ring (13).

8, a kind of submersible pump according to claim 1 is characterized in that being provided with rubber cushion (12) between described housing (1) and the base (2).

9, a kind of submersible pump according to claim 1 is characterized in that cavity (8) inlet of described base (2) bottom is provided with filter screen (14).

10, a kind of submersible pump according to claim 1 is characterized in that described housing (1) upper end also is provided with handle (15).