Motor-driven pump with open internal circulation cooling

Abstract

The utility model relates to a motor drive pump with open internal circulation cooling, which comprises a motor outer shell and two connecting flanges, the connecting flanges are integrally formed at two ends of the motor outer shell and are communicated with an inner cavity of the motor outer shell, and a flow guide component is arranged in the middle of the inner cavity of the motor outer shell. The flow guide assembly comprises a connecting bearing, a connecting cylinder and a spiral blade, a motor rotor is installed in the middle of an inner cavity of the motor outer shell, and the motor rotor is fixedly connected with the connecting cylinder through a bolt; according to the utility model, the liquid inlet gap and the liquid outlet gap are matched with the cooling gap and the cooling cavity, so that when the motor rotor needs to be cooled, cooling liquid can directly enter the cooling cavity from the cooling gap, the cooling liquid is directly contacted with the motor rotor, and heat generated during operation of the motor rotor is directly taken away; therefore, the heat dissipation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of motor-driven pump technology, specifically a motor-driven pump with open internal circulation cooling. Background Technology

[0002] An electric pump, as the name suggests, is a pump that uses an electric motor as a power source to drive the pump body. Based on their working principle and structural characteristics, electric pumps can be divided into various types, such as centrifugal pumps, piston pumps, and gear pumps. These pumps play an important role in different fields, providing convenience for industrial production and daily life.

[0003] Currently, electric pumps generate a large amount of heat after prolonged operation, which needs to be dissipated to prevent it from affecting the pump's operation. However, in practice, it has been found that existing electric pump cooling methods, such as cooling holes or channels, are generally only located inside the motor housing. The coolant does not enter the motor rotor, thus failing to effectively dissipate heat from the heat source. The cooling effect is limited to the surface and is poor. Therefore, it is necessary to design a motor-driven pump with open internal circulation cooling that can effectively dissipate heat from the inside of the motor rotor to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a motor-driven pump with open internal circulation cooling to solve the problems mentioned in the background section.

[0005] This utility model discloses a motor-driven pump with open internal circulation cooling, comprising a motor housing and connecting flanges. Two connecting flanges are integrally formed at both ends of the motor housing and communicate with the inner cavity of the motor housing. A flow guiding assembly is disposed in the middle of the inner cavity of the motor housing, the flow guiding assembly including a connecting bearing, a connecting cylinder, and a spiral blade. A motor rotor is installed in the middle of the inner cavity of the motor housing, and the motor rotor is connected and fixed to the connecting cylinder by bolts. A cooling assembly is disposed in the inner cavity of the motor housing, the cooling assembly including an inlet gap, a cooling gap, a cooling chamber, and an outlet gap.

[0006] As a further improvement of this utility model, there are two connecting bearings, both of which are installed in the inner cavity of the motor housing near both sides of the motor rotor.

[0007] As a further improvement of this utility model, the connecting cylinder is installed inside the two connecting bearings and both ends protrude from the connecting bearings, and the diameter of the connecting cylinder is adapted to the size of the inner cavity of the motor housing.

[0008] As a further improvement of this utility model, the spiral blade is fixedly connected to the inner wall of the connecting cylinder, and the spiral blade rotates as the connecting cylinder rotates.

[0009] As a further improvement of this utility model, the cooling cavity is opened in the middle of the inner cavity of the motor housing, and the motor rotor is installed inside the cooling cavity.

[0010] As a further improvement of this utility model, the liquid inlet gap and the liquid outlet gap are respectively opened in the inner cavity of the motor housing near both ends of the connecting cylinder.

[0011] As a further improvement of this utility model, the cooling gap is opened in the inner cavity of the motor housing near the two connecting bearings, and the cooling gap connects the cooling cavity, the liquid outlet gap, and the liquid inlet gap.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the setting of inlet and outlet gaps, combined with cooling gaps and cooling chambers, allows the coolant to directly enter the cooling chamber from the cooling gaps when the motor rotor needs cooling, so that the coolant directly contacts the motor rotor, thereby directly carrying away the heat generated when the electric rotor is running, thus making the heat dissipation effect better.

[0014] 2. At the same time, by utilizing the connecting bearing and connecting cylinder, in conjunction with the spiral blades, the coolant can better enter the cooling gap and the interior of the cooling chamber, thereby better dissipating heat from the motor rotor. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall front sectional view of the present invention;

[0017] Figure 2 This is a side view of the overall structure of this utility model.

[0018] In the diagram: 01, motor housing; 011, connecting flange; 012, motor rotor; 02, liquid inlet gap; 021, cooling gap; 022, cooling chamber; 023, liquid outlet gap; 03, connecting bearing; 031, connecting cylinder; 032, spiral blade. Detailed Implementation

[0019] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0020] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0022] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Please see Figure 1-2 This utility model includes a motor housing 01 and connecting flanges 011. There are two connecting flanges 011, both integrally formed at both ends of the motor housing 01 and communicating with the inner cavity of the motor housing 01. A flow guiding assembly is provided in the middle of the inner cavity of the motor housing 01. The flow guiding assembly includes a connecting bearing 03, a connecting cylinder 031 and a spiral blade 032. A motor rotor 012 is installed in the middle of the inner cavity of the motor housing 01. The motor rotor 012 is connected and fixed to the connecting cylinder 031 by bolts. A cooling assembly is provided in the inner cavity of the motor housing 01. The cooling assembly includes an inlet gap 02, a cooling gap 021, a cooling cavity 022 and an outlet gap 023.

[0024] Please see Figure 1 and Figure 2 In this embodiment, in order to better guide the coolant into the inlet gap 02 and the cooling chamber 022, there are two connecting bearings 03, both of which are installed in the inner cavity of the motor housing near the two sides of the motor rotor 012.

[0025] The connecting cylinder 031 is installed inside the two connecting bearings 03 and both ends protrude from the connecting bearings 03. The diameter of the connecting cylinder 031 is adapted to the size of the inner cavity of the motor housing 01.

[0026] The spiral blade 032 is fixedly connected to the inner wall of the connecting cylinder 031. The spiral blade 032 rotates as the connecting cylinder 031 rotates. The motor rotor 012 is preferably sealed with resin for insulation and corrosion protection. The connecting bearing 03 is preferably a ceramic bearing for insulation and corrosion protection.

[0027] After the motor is started, the motor rotor 012 drives the connecting cylinder 031 and the spiral blade 032 to rotate, thereby driving the coolant into the inlet gap 02.

[0028] Please see Figure 1 and Figure 2 It should be noted that, in order to better cool the motor rotor 012, the cooling chamber 022 is opened in the middle of the inner cavity of the motor housing 01, and the motor rotor 012 is installed inside the cooling chamber 022.

[0029] The liquid inlet gap 02 and the liquid outlet gap 023 are respectively opened in the inner cavity of the motor housing 01 at both ends near the connecting cylinder 031;

[0030] The cooling gap 021 is located in the inner cavity of the motor housing 01 near the two connecting bearings 03. The cooling gap 021 connects the cooling cavity 022, the liquid outlet gap 023, and the liquid inlet gap 02.

[0031] After the coolant enters the cooling gap 021 through the inlet gap 02, it enters the cooling chamber 022 through the gap of the connecting bearing 03 to cool the motor rotor 012 inside the cooling chamber 022. Finally, it is discharged from the outlet gap 023 and carries away the heat generated by the motor rotor 012.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A motor-driven pump with open inner circulation cooling, comprising a motor outer shell (01) and a connecting flange (011), characterized in that: the connecting flange (011) is two and integrally formed at both ends of the motor outer shell (01) and communicates with the inner cavity of the motor outer shell (01), the middle part of the inner cavity of the motor outer shell (01) is provided with a flow guide assembly, the flow guide assembly comprises a connecting bearing (03), a connecting cylinder (031) and a spiral blade (032), the middle part of the inner cavity of the motor outer shell (01) is provided with a motor rotor (012), the motor rotor (012) is connected and fixed with the connecting cylinder (031) through bolts; the inner cavity of the motor outer shell (01) is provided with a cooling assembly, the cooling assembly comprises a liquid inlet gap (02), a cooling gap (021), a cooling cavity (022) and a liquid outlet gap (023).

2. An electric motor driven pump with open internal cooling according to claim 1, characterized in that: The connecting bearing (03) is two and installed on both sides of the motor rotor (012) near the inner cavity of the motor shell.

3. A motor driven pump with open internal cooling according to claim 1, characterized in that: The connecting cylinder (031) is installed inside the two connecting bearings (03) and protrudes from the connecting bearings (03) at both ends, the diameter of the connecting cylinder (031) is matched with the size of the inner cavity of the motor outer shell (01).

4. A motor driven pump with open internal cooling according to claim 1, characterized in that: The spiral blade (032) is fixedly connected to the inner wall of the connecting cylinder (031), and the spiral blade (032) rotates with the rotation of the connecting cylinder (031).

5. An electric motor driven pump with open internal cooling according to claim 1, characterized in that: The cooling cavity (022) is opened in the middle part of the inner cavity of the motor outer shell (01), and the motor rotor (012) is installed inside the cooling cavity (022).

6. An electric motor driven pump with open internal cooling according to claim 1, characterized in that: The liquid inlet gap (02) and the liquid outlet gap (023) are respectively arranged at both ends of the connecting cylinder (031) near the inner cavity of the motor outer shell (01).

7. A motor driven pump with open internal cooling according to claim 1, characterized in that: The cooling gap (021) is arranged near the two connecting bearings (03) in the inner cavity of the motor outer shell (01), and the cooling gap (021) communicates the cooling cavity (022) and the liquid outlet gap (023) and the liquid inlet gap (02).

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