Vacuum water filling device for direct current motor

Abstract

The utility model provides a vacuum water filling device for a direct current motor, and solves the technical problems that the water filling mode of a submersible direct current motor in the prior art is manual water filling by using an injector, the labor intensity is high, time and labor are wasted, the water filling efficiency is low, air in the motor cannot be effectively discharged during water filling, and the water filling amount cannot be ensured. The vacuum water filling device comprises a water tank, a water filling tool, a vacuumizing pump, a vacuum pressure gauge and a water storage barrel, the water tank is provided with a containing cavity used for containing the motor, the first end of the water filling tool is connected with the motor in a sealed mode, and the second end of the water filling tool is connected with the water storage barrel through the vacuumizing pump. The interior of the motor is vacuumized, air in the motor can be effectively discharged, the water filling amount is effectively met, water is automatically filled through the pressure difference between the interior and the exterior of the motor, and the water filling speed is high. The vacuum pressure gauge is communicated with the water filling tool through a pipeline and used for monitoring the gas pressure in the water filling tool.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current motors, in particular to a vacuum water filling device for direct current motors. Background Art

[0002] The submersible DC motor needs to be filled with water to meet the usage requirements.

[0003] At present, the water filling method of submersible DC motors is manual water filling using a syringe, but this has the following technical problems: manual water filling is labor-intensive, time-consuming and labor-intensive, and has low water filling efficiency. In addition, the air inside the motor cannot be effectively discharged during water filling, and the water filling amount cannot be guaranteed.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum water filling device for a DC motor, so as to solve the technical problems that the water filling method of a submersible DC motor in the prior art is to manually fill water with a syringe, which is labor-intensive, time-consuming and labor-intensive, and has low water filling efficiency. In addition, the air inside the motor cannot be effectively discharged during water filling, and the water filling amount cannot be guaranteed. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the utility model are described in detail below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a vacuum water filling device for a DC motor, comprising a water tank, a water filling tool, a vacuum pump, a vacuum pressure gauge and a water storage barrel, wherein the water tank has a cavity for accommodating the motor, a first end of the water filling tool is sealed with the motor, a second end of the water filling tool is connected to the water storage barrel via the vacuum pump, and the vacuum pressure gauge is connected to the water filling tool via a pipeline for monitoring the gas pressure in the water filling tool.

[0008] Preferably, the water filling tool includes a shell, a sealing sleeve and an end cover, the shell has a hollow cavity with openings at both ends, the first end of the shell is connected to the sealing sleeve, the sealing sleeve is detachably sealed to the front cover of the motor, the second end of the shell is connected to the end cover, and the vacuum pump is connected to the end cover through a pipeline.

[0009] Preferably, a first air pipe joint and a second air pipe joint are provided on the end cover, the inlet of the vacuum pump is connected to the cavity through the first air pipe joint, and the vacuum pressure gauge is connected to the cavity through the second air pipe joint.

[0010] Preferably, the water tank is connected to the outlet of the vacuum pump through a pipeline.

[0011] Preferably, the first end of the shell is provided with a first positioning step, the sealing sleeve has a first installation step matched with the first positioning step, the second end of the shell is provided with a second positioning step, and the end cover has a second installation step matched with the second positioning step.

[0012] Preferably, a first through hole and a second through hole are provided on the end cover, the first air pipe joint is inserted into the first through hole, and the second air pipe joint is inserted into the second through hole.

[0013] Preferably, the upper end of the cavity is open, and the highest water level contained is higher than the height of the highest point of the motor.

[0014] Preferably, a control switch is further included, and the vacuum pump is electrically connected to the control switch.

[0015] The preferred technical solution of the utility model can also produce at least the following technical effects:

[0016] The utility model effectively avoids the technical problems that the water filling method of the submersible DC motor in the prior art is to manually fill water with a syringe, which has high labor intensity, is time-consuming and labor-intensive, has low water filling efficiency, and cannot effectively discharge the air inside the motor during water filling, and the water filling amount cannot be guaranteed. The utility model provides a vacuum water filling device for a DC motor, including a water tank, a water filling tool, a vacuum pump, a vacuum pressure gauge and a water storage barrel. The water tank has a cavity for accommodating the motor, the first end of the water filling tool is sealed and connected to the motor, the second end of the water filling tool is connected to the water storage barrel through the vacuum pump, and the vacuum pressure gauge is connected to the water filling tool through a pipeline to monitor the gas pressure in the water filling tool. The utility model places the motor in the water tank, and through the coordinated action of the water filling tool, the vacuum pump, the vacuum pressure gauge and the water storage barrel, the motor is vacuumed, the air inside the motor is effectively discharged, the water filling amount is effectively met, and the water filling is automatically filled by relying on the pressure difference between the inside and outside of the motor, and the water filling speed is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a connection diagram of a vacuum water filling device for a DC motor provided by the utility model;

[0019] Figure 2It is a structural schematic diagram of a water filling tool for a vacuum water filling device for a DC motor provided by the utility model;

[0020] Figure 3 The utility model is a cross-sectional view of a water filling tool for a vacuum water filling device of a DC motor provided by the utility model.

[0021] In the figure:

[0022] 1. Water tank; 2. Water filling tool; 21. Shell; 211. First positioning step; 212. Second positioning step; 22. Sealing sleeve; 221. First installation step; 23. End cover; 231. Second installation step; 232. First through hole; 233. Second through hole; 24. First air pipe joint; 25. Second air pipe joint; 3. Vacuum pump; 4. Vacuum pressure gauge; 5. Water storage tank; 6. Motor; 7. Control switch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0024] like Figure 1-3 As shown, the utility model provides a vacuum water filling device for a DC motor 6, comprising a water tank 1, a water filling tool 2, a vacuum pump 3, a vacuum pressure gauge 4 and a water storage barrel 5, the water tank 1 having a cavity for accommodating the motor 6, a first end of the water filling tool 2 being sealedly connected to the motor 6, a second end of the water filling tool 2 being connected to the water storage barrel 5 via the vacuum pump 3, and a vacuum pressure gauge 4 being connected to the water filling tool 2 via a pipeline for monitoring the gas pressure in the water filling tool 2.

[0025] The utility model places the motor 6 in the water tank 1, and vacuumizes the inside of the motor 6 through the coordinated action of the water filling tool 2, the vacuum pump 3, the vacuum pressure gauge 4 and the water storage barrel 5, so as to effectively discharge the air inside the motor 6, effectively meet the water filling amount, and automatically fill water by relying on the pressure difference between the inside and outside of the motor 6, with a high water filling speed. It is particularly suitable for the production line of submersible motors 6 to fill water inside the submersible motors 6.

[0026] As an optional implementation, Figure 2 , 3As shown, the water filling tool 2 includes a shell 21, a sealing sleeve 22 and an end cover 23. The shell 21 has a hollow cavity with two ends open. The first end of the shell 21 is connected to the sealing sleeve 22. The sealing sleeve 22 is detachably sealed to the front cover of the motor 6. The second end of the shell 21 is connected to the end cover 23. The vacuum pump 3 is connected to the end cover 23 through a pipeline.

[0027] Furthermore, the sealing sleeve 22 is pressed and assembled with the front cover hole of the motor 6 to ensure the sealing of the connection between the sealing sleeve 22 and the motor 6 and effectively prevent external air from entering the interior of the motor 6.

[0028] The end cover 23 is bonded to the second end of the housing 21 by glue, thereby ensuring the stability and reliability of the connection between the end cover 23 and the housing 21 .

[0029] As an optional implementation, a first air pipe joint 24 and a second air pipe joint 25 are provided on the end cover 23 , the inlet of the vacuum pump 3 is connected to the cavity through the first air pipe joint 24 , and the vacuum pressure gauge 4 is connected to the cavity through the second air pipe joint 25 .

[0030] As an optional implementation, the water tank 1 is connected to the outlet of the vacuum pump 3 through a pipeline.

[0031] As an optional implementation, Figure 3 As shown, the first end of the shell 21 is provided with a first positioning step 211, the sealing sleeve 22 has a first installation step 221 adapted to the first positioning step 211, the second end of the shell 21 is provided with a second positioning step 212, and the end cover 23 has a second installation step 231 adapted to the second positioning step 212.

[0032] The sealing sleeve 22 and the housing 21 are sealed and connected by plugging and fitting the first installation step 221 and the first positioning step 211 , so that assembly and disassembly are convenient.

[0033] The end cover 23 is sealedly connected to the housing 21 by plugging and fitting the second mounting step 231 and the second positioning step 212 , and glue is coated at the connection between the second mounting step 231 and the second positioning step 212 to further ensure the stability and reliability of the connection between the end cover 23 and the housing 21 .

[0034] As an optional implementation, Figure 3 As shown, a first through hole 232 and a second through hole 233 are provided on the end cover 23 , the first air pipe connector 24 is inserted into the first through hole 232 , and the second air pipe connector 25 is inserted into the second through hole 233 .

[0035] As an optional implementation, Figure 1 As shown, the upper end of the cavity is open, and the highest water level contained is higher than the height of the highest point of the motor 6, so as to ensure the stable operation of the motor 6 in the watering operation.

[0036] As an optional implementation, Figure 1 As shown, a control switch 7 is also included, and the vacuum pump 3 is electrically connected to the control switch 7.

[0037] The function of the control switch 7 is to control the start and stop of the vacuum pump 3, and the control is convenient. The specific circuit connection relationship between the vacuum pump 3 and the control switch 7 is prior art, and will not be described in detail here.

[0038] The working principle of this utility model:

[0039] S1: Place the motor 6 into the water tank 1, and press and assemble the water filling tool 2 and the front cover hole of the motor 6;

[0040] S2: Start the vacuum pump 3 to evacuate the inside of the motor 6;

[0041] S3: Observe the vacuum pressure gauge 4. After the value of the vacuum pressure gauge 4 reaches 0.06-0.08MPa, wait for 2-4 seconds and turn off the vacuum pump 3:

[0042] S4: dismantle the water filling tool 2, and the motor 6 automatically fills the water by using the pressure difference.

[0043] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0044] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A vacuum water filling device for a DC motor, characterized in that: It includes a water tank, a water filling tool, a vacuum pump, a vacuum pressure gauge and a water storage barrel. The water tank has a cavity for accommodating a motor. The first end of the water filling tool is sealed with the motor. The second end of the water filling tool is connected to the water storage barrel through the vacuum pump. The vacuum pressure gauge is connected to the water filling tool through a pipeline and is used to monitor the gas pressure in the water filling tool.

2. A vacuum water filling device for a DC motor according to claim 1, characterized in that: The water filling tool includes a shell, a sealing sleeve and an end cover. The shell has a hollow cavity with two ends open. The first end of the shell is connected to the sealing sleeve, and the sealing sleeve is detachably sealed to the front cover of the motor. The second end of the shell is connected to the end cover, and the vacuum pump is connected to the end cover through a pipeline.

3. A vacuum water filling device for a DC motor according to claim 2, characterized in that: The end cover is provided with a first air pipe joint and a second air pipe joint, the inlet of the vacuum pump is connected with the cavity through the first air pipe joint, and the vacuum pressure gauge is connected with the cavity through the second air pipe joint.

4. A vacuum water filling device for a DC motor according to claim 3, characterized in that: The water tank is communicated with the outlet of the vacuum pump through a pipeline.

5. A vacuum water filling device for a DC motor according to claim 4, characterized in that: The first end of the shell is provided with a first positioning step, the sealing sleeve has a first installation step matched with the first positioning step, the second end of the shell is provided with a second positioning step, and the end cover has a second installation step matched with the second positioning step.

6. A vacuum water filling device for a DC motor according to claim 5, characterized in that: The end cover is provided with a first through hole and a second through hole, the first air pipe joint is inserted into the first through hole, and the second air pipe joint is inserted into the second through hole.

7. A vacuum water filling device for a DC motor according to claim 1, characterized in that: The upper end of the chamber is open, and the highest water level contained is higher than the height of the highest point of the motor.

8. A vacuum water filling device for a DC motor according to claim 1, characterized in that: It also includes a control switch, and the vacuum pump is electrically connected to the control switch.

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