Glue-overflow-preventing double-output-shaft electronic water pump shell and water pump

Abstract

According to the technical scheme, the glue-overflow-preventing double-output-shaft electronic water pump shell is characterized by comprising a shell, a rotor cavity is formed in the shell, a stator cavity is formed in the shell and surrounds the outer side of the rotor cavity, an electrical cavity used for installing electrical parts is further formed in the shell, the electrical cavity is communicated with the stator cavity, and one end of the shell is connected with a bottom cover; a glue pouring port is formed in the bottom cover, the part, located above the rotor cavity, of the bottom cover protrudes upwards, the rotor cavity extends upwards to be attached to the bottom cover, and a glue blocking plate is arranged on the bottom cover, surrounds the outer side of the rotor cavity by a circle and is attached to the peripheral side wall of the rotor cavity; according to the utility model, the motor part and the electrical part are assembled together, and waterproof glue is poured, so that the reject ratio of the water pump is reduced while high-voltage complete insulation is achieved, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, and more specifically to an anti-overflow glue double-shaft electronic water pump housing and a water pump. Background Art

[0002] The existing submersible high-pressure double-shaft electronic water pump adopts a separated assembly of the electrical part and the motor part, which has a large operation difficulty. At the same time, the motor part needs additional sealing and filling with transformer oil, with cumbersome processes, easy environmental pollution, high costs, and low safety factor. However, if the electrical part is installed inside the motor part, due to the double-shaft structure, the rotating shaft of the rotor needs to pass through the bottom of the rotor cavity. When filling with waterproof glue, the existing water pumps generally open a glue filling port on the top cover to fill the glue downward, which will cause the waterproof glue to be poured back into the rotor from the bottom of the rotor cavity, affecting the normal operation of the rotor. Therefore, a new double-shaft electronic water pump structure needs to be designed. Content of the Utility Model

[0003] To achieve the above object, the utility model provides the following technical solutions:

[0004] An anti-overflow glue double-shaft electronic water pump housing, including a housing. A rotor cavity is provided inside the housing. A stator cavity is provided inside the housing and surrounds the outside of the rotor cavity. An electrical cavity for installing electrical components is further provided inside the housing. The electrical cavity is communicated with the stator cavity. One end of the housing is connected with a bottom cover. A glue filling port is opened on the bottom cover. The part of the bottom cover above the rotor cavity protrudes upward to be higher than the glue filling port. The rotor cavity extends upward to fit with the bottom cover. A glue blocking plate is provided on the bottom cover. The glue blocking plate surrounds the outside of the rotor cavity and fits with the circumferential side wall of the rotor cavity.

[0005] The utility model is further arranged as: The glue filling port is opened above the electrical cavity.

[0006] The utility model is further arranged as: At least two glue filling ports are opened.

[0007] The utility model is further arranged as: A diversion channel is provided at the bottom of the electrical cavity. The diversion channel faces the direction of the stator cavity. The diversion channel is composed of two parallel diversion plates.

[0008] The utility model is further arranged as: A drainage slope is provided at the bottom of the stator cavity and surrounds the edge. The drainage slope inclines downward from top to bottom towards the outside of the stator cavity.

[0009] The utility model is further arranged as: Positioning grooves are provided on the inner walls at both ends of the electrical cavity. The two ends of the electrical component are respectively clamped in the positioning grooves.

[0010] The present utility model is further configured such that: the outer shell, the top cover and the bottom cover are all made of plastic materials.

[0011] In addition, the present utility model also provides a water pump, which includes the anti-overflow glue double-output shaft electronic water pump housing as described above.

[0012] Compared with the prior art, the present utility model has at least the following advantages:

[0013] 1. The glue filling port is opened on the bottom cover and the glue is filled from the bottom cover downwards, and the end of the rotor cavity extends upwards to fit with the protruding part of the bottom cover, so that when the glue filling port is full, the waterproof glue will not overflow to the end of the rotor cavity. Moreover, a glue blocking plate is further arranged around the bottom cover outside the rotor cavity to further prevent the waterproof glue from flowing back into the rotor cavity, realizing the assembly of the motor part and the electrical part, filling the waterproof glue, achieving complete high-voltage insulation while reducing the defective rate of the water pump and improving the product quality.

[0014] 2. The glue filling port is opened above the electrical cavity. When filling the glue, the waterproof glue first flows into the electrical cavity and then flows to the stator cavity. Since the waterproof glue generally has a higher density, it is easy to cause the stator cavity not to be filled when the waterproof glue fills up to the glue filling port. Therefore, by arranging a diversion channel at the bottom of the electrical cavity and blocking it with two diversion plates to guide the waterproof glue towards the direction of the stator cavity, the filling speed of the stator cavity is accelerated, so that the glue filling speed can be faster.

[0015] 3. By arranging an inclined diversion slope at the edge of the stator cavity, the waterproof glue at the bottom of the stator cavity will flow down along the diversion slope, accelerating the filling speed of the bottom of the outer shell, avoiding the existence of voids at the bottom when the waterproof glue fills up to the glue filling port, and further ensuring that the stator part and the electrical part are completely wrapped by the waterproof glue. Description of the Drawings

[0016] Figure 1 is a schematic diagram after the installation of the first embodiment is completed;

[0017] Figure 2 is a schematic diagram of the outer shell in the first embodiment;

[0018] Figure 3 is a three-dimensional cross-sectional view of the first embodiment;

[0019] Figure 4 is a three-dimensional cross-sectional view of the outer shell.

[0020] Description of the Reference Numerals:

[0021] 1. Outer shell; 101. Rotor cavity; 102. Stator cavity; 103. Electrical cavity; 2. Bottom cover; 3. Top cover; 4. Glue filling port; 5. Glue blocking plate; 6. Diversion channel; 601. Diversion plate; 7. Drainage slope; 8. Positioning groove; 9. Rotor assembly; 10. Stator assembly; 11. Electrical component. Detailed Embodiments

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] First embodiment:

[0025] A double-shaft electronic water pump housing with anti-overflow glue, such as Figure 1 and Figure 2 As shown, it includes a shell 1, a rotor cavity 101 is provided in the shell 1, the rotor cavity 101 and the shell 1 are integrally formed and are cylindrical, the rotor cavity 101 is used to install the rotor assembly 9, a stator cavity 102 is provided inside the shell 1 and around the outside of the rotor cavity 101, the stator cavity 102 is used to install the stator assembly 10, and an electrical cavity 103 for installing electrical parts 11 is also provided in the shell 1, and the electrical cavity 103 is connected to the stator cavity 102, one end of the shell 1 is connected to the bottom cover 2, and the other end is connected to the top cover 3, the bottom cover 2 and the top cover 3 are both locked and fixed to the shell 1 by a plurality of screws.

[0026] The bottom cover 2 is provided with a glue filling port 4, which is specifically provided at a portion of the bottom cover 2 located above the electrical cavity 103. There are at least two glue filling ports 4 to improve glue filling efficiency. In the present embodiment, there are two glue filling ports 4.

[0027] like Figure 1 and Figure 3 As shown, the portion of the bottom cover 2 located above the rotor cavity 101 protrudes upward to be higher than the glue filling port 4, and the end of the rotor cavity 101 extends upward to fit with the bottom cover 2, so that the end of the rotor cavity 101 is higher than the glue filling port 4. When pouring glue, the shell is inverted, and glue is poured downward from the glue filling port 4 of the bottom cover 2. When the waterproof glue is filled to the glue filling port 4, the waterproof glue will not be immersed in the end of the rotor cavity 101. Through holes are opened at the corresponding positions of the end of the rotor cavity 101 and the bottom cover 2, and the bottom ends of the rotating shafts of the double-output shaft rotors pass through the through holes in sequence.

[0028] A rubber baffle 5 is also provided on the bottom cover 2. The rubber baffle 5 is integrally formed with the bottom cover 2. The rubber baffle 5 is arranged in a circle around the outside of the rotor cavity 101 and is attached to the circumferential side wall of the rotor cavity 101. The rubber baffle 5 plays a sealing role, further preventing the waterproof glue from entering the rotor cavity 101. Therefore, through the design of the reverse installation structure and the rubber baffle 5, when the motor part and the electrical part are assembled together and the electrical part and the stator part are completely immersed by pouring the waterproof glue, the waterproof glue will not affect the rotor assembly 9. And the rubber baffle 5 also plays a limiting role. The rotor cavity 101 is snapped into the rubber baffle 5, improving the stability of the rotor cavity 101.

[0029] As Figures 2 to 4 shown, a diversion channel 6 is provided at the bottom of the electrical cavity 103. The diversion channel 6 faces the direction of the stator cavity 102. The diversion channel 6 is composed of two parallel diversion plates 601. Positioning grooves 8 are provided on the inner walls at both ends of the electrical cavity 103. The positioning grooves 8 extend in the vertical direction. In this embodiment, the electrical component 11 is specifically a circuit board. Both ends of the circuit board are respectively clamped in the positioning grooves 8, and the bottom end of the circuit board is attached to the top end of the diversion plate 601.

[0030] The glue filling port 4 is opened above the electrical cavity 103. When filling with glue, the waterproof glue first flows into the electrical cavity 103 and then flows to the stator cavity 102. Since the waterproof glue generally has a higher density and its flow rate is not as fast as that of water flow, it is easy to cause the situation that when the waterproof glue fills up to the glue filling port 4, the stator cavity 102 is not yet filled. As a result, the glue filling speed needs to be reduced to wait for the waterproof glue to flow to the stator cavity 102. Therefore, by providing the diversion channel 6 at the bottom of the electrical cavity 103 and blocking it with the two diversion plates 601, the waterproof glue will not continue to flow to both sides, but first flows in the direction of the stator cavity 102, accelerating the filling speed of the stator cavity 102, so that the glue filling speed can be faster.

[0031] A drainage slope 7 is provided at the bottom of the stator cavity 102 and around the edge. The drainage slope 7 slopes downward from top to bottom towards the outside of the stator cavity 102. As mentioned above, the flow rate of the waterproof glue is slow, and it is easy to have the situation that when the waterproof glue fills up to the glue filling port 4, there are still gaps at the bottom. Therefore, by providing the drainage slope 7, the waterproof glue flows downward along the drainage slope 7, accelerating the filling speed of the bottom of the housing 1. The waterproof glue gradually fills the housing 1 from bottom to top, ensuring that there are no gaps at the bottom; through the special flow channel design of the diversion plate 601 and the drainage slope 7, when filling with glue, it is possible to fill with glue at a large flow rate and quickly, and at the same time, the waterproof glue floods from bottom to top, evenly wrapping the stator part and the electrical part, achieving excellent electrical insulation while improving the glue filling efficiency of the water pump.

[0032] In this embodiment, the housing 1, the top cover 3 and the bottom cover 2 are all made of plastic materials and are all injection molded parts. The inside is filled with waterproof glue, and the waterproof glue is waterproof epoxy resin to achieve complete high-voltage insulation.

[0033] The installation process of the present utility model is as follows:

[0034] After the rotor assembly 9, the stator assembly 10 and the electrical components 11 are respectively installed into the rotor cavity 101, the stator cavity 102 and the electrical cavity 103, the top cover 3 and the bottom cover 2 are respectively fixed to both ends of the housing 1 with screws. When pouring glue, the housing is inverted with the bottom cover 2 facing upwards, and glue is poured downwards from the glue pouring port 4 of the bottom cover 2. Through the flow channel design of the guiding flow channel and the drainage slope 7, the waterproof glue is flooded from the bottom upwards. When it reaches the glue pouring port 4, it stops. The waterproof glue completely wraps the stator part and the electrical part, and at the same time, the glue will not overflow into the rotor cavity 101.

[0035] Second embodiment:

[0036] A water pump, the water pump is a double-shaft electronic water pump, including the anti-glue overflow double-shaft electronic water pump housing of the first embodiment.

[0037] The above are only the preferred embodiments of the present utility model, and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-overflow double-shaft electronic water pump housing, characterized in that: The invention comprises a housing (1), wherein a rotor cavity (101) is provided in the housing (1), a stator cavity (102) is provided inside the housing (1) and around the outside of the rotor cavity (101), an electrical cavity (103) for installing an electrical component (11) is also provided in the housing (1), and the electrical cavity (103) is communicated with the stator cavity (102), one end of the housing (1) is connected to a bottom cover (2), a glue injection port (4) is provided on the bottom cover (2), a portion of the bottom cover (2) located above the rotor cavity (101) protrudes upwards to be higher than the glue injection port (4), the rotor cavity (101) extends upwards to be in contact with the bottom cover (2), and a glue blocking plate (5) is provided on the bottom cover (2), and the glue blocking plate (5) is arranged around the outside of the rotor cavity (101) and is in contact with the peripheral side wall of the rotor cavity (101).

2. The anti-overflow double-shaft electronic water pump housing according to claim 1, characterized in that: The glue filling port (4) is opened above the electrical cavity (103).

3. The anti-overflow double-shaft electronic water pump housing according to claim 2, characterized in that: At least two glue filling ports (4) are provided.

4. The anti-overflow double-shaft electronic water pump housing according to claim 2, characterized in that: A flow guide channel (6) is provided at the bottom of the electrical cavity (103), the flow guide channel (6) faces the direction of the stator cavity (102), and the flow guide channel (6) is composed of two mutually parallel flow guide plates (601).

5. The anti-overflow glue double-shaft electronic water pump housing according to claim 4, characterized in that: A circle of drainage slopes (7) are arranged at the bottom and around the edge of the stator cavity (102), and the drainage slopes (7) are inclined from top to bottom toward the outside of the stator cavity (102).

6. The anti-overflow double-shaft electronic water pump housing according to claim 5, characterized in that: Positioning grooves (8) are provided on the inner walls at both ends of the electrical cavity (103), and the two ends of the electrical component (11) are respectively clamped in the positioning grooves (8).

7. The anti-overflow glue double-shaft electronic water pump housing according to claim 1, characterized in that: The outer shell (1), the top cover (3) and the bottom cover (2) are all made of plastic material.

8. A water pump, characterized in that: The invention comprises the anti-overflow glue double-outlet shaft electronic water pump housing as described in any one of claims 1 to 7.

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