Permanent magnet motor cooling device

Abstract

The utility model relates to a kind of permanent magnet motor cooling device, including main body, the upper installation cavity and lower installation cavity are separated by horizontal partition in main body inside, further include: cooling liquid conveying component, including hollow column between the upper installation cavity upper and lower inner wall installation;Radiating component, including fin, coil pipe, fan, two pairs of fins are respectively installed on the upper installation cavity front side inner wall, and located hollow column two sides symmetrical arrangement, coil pipe is serpentine and is arranged between a pair of fins, coil pipe import end is connected with hollow column, and coil pipe export end is connected with lead-out pipe;Transfer member, it is installed in the rear side middle of upper installation cavity inner bottom, both sides are equipped with the butt joint end connected with lead-out pipe, transfer member inside is equipped with two water inlet cavity and a water outlet cavity connected with butt joint end, and transfer member top detachably installs the filter component respectively connected with water inlet cavity and water outlet cavity.

Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, and in particular to a cooling device for a permanent magnet motor. Background Technology

[0002] Water cooling systems are widely used in high-power permanent magnet motors due to their high heat dissipation performance, especially under high load and long-term operation conditions. Water cooling systems can effectively reduce motor temperature, improve operating efficiency, and extend service life. A water cooling system typically consists of a water pump, cooling channels, a radiator, and corresponding filtration devices. The filtration devices play a crucial role in preventing impurities in the coolant from entering the motor, avoiding channel blockage, and improving cooling efficiency.

[0003] However, existing water-cooling systems commonly suffer from inconvenient disassembly of their filter structures. Most filters are fixedly installed and directly connected to the cooling water circuit. Disassembly requires shutting down the cooling system, draining the coolant, and removing multiple connecting parts, making the process complex, time-consuming, and increasing maintenance costs and downtime. Furthermore, some filter designs are not user-friendly, making filter elements difficult to replace or clean quickly, resulting in low maintenance efficiency and potentially affecting the cooling system's sealing and reliability due to improper maintenance.

[0004] Therefore, a permanent magnet motor cooling device is needed to improve the above problems. Summary of the Invention

[0005] The present invention aims to address the shortcomings of the prior art by providing a cooling device for a permanent magnet motor.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a permanent magnet motor cooling device, comprising a main body, the interior of which is divided into an upper mounting cavity and a lower mounting cavity by a horizontal partition, and further comprising:

[0007] The coolant delivery assembly includes a water tank installed on one side of the lower mounting cavity, a pump body installed on the other side and connected to the water tank, a hollow column between the upper and lower inner walls of the upper mounting cavity, and a delivery pipe connected to the bottom of the hollow column at the pump body outlet.

[0008] The heat dissipation assembly includes heat sinks, coils, and fans. Two pairs of heat sinks are respectively installed on the inner wall of the front side of the upper mounting cavity and are symmetrically arranged on both sides of the hollow column. The coils are arranged in a serpentine pattern between a pair of heat sinks. The inlet end of the coils is connected to the hollow column, and the outlet end of the coils is connected to an outlet pipe. Two fans are respectively installed on the inner wall of the rear side of the upper mounting cavity and correspond one-to-one with the heat sinks.

[0009] The transfer unit is installed in the middle of the bottom rear side of the upper mounting cavity. It has docking ends on both sides that connect to the outlet pipe. The transfer unit has two water inlet channels and one water outlet channel that connect to the docking ends. The top of the transfer unit is detachably equipped with filter components that connect to the water inlet channel and the water outlet channel respectively.

[0010] Specifically, a drain outlet is located at the bottom of one side of the water tank, and a drain valve is installed on the drain outlet.

[0011] Specifically, the inlet end of the coil is equipped with a sealing plug end, which is plugged and fixed to the top of both sides of the hollow column.

[0012] Specifically, a water outlet pipe is provided on one side of the water outlet chamber, a water inlet pipe is provided on one side of the water tank, and a water inlet connector and a water outlet connector are respectively installed on one side of the main body. The water outlet pipe is connected to the water outlet connector, and the water inlet pipe is connected to the water inlet connector.

[0013] Specifically, a junction box is installed on one side of the lower mounting cavity, and the junction box is electrically connected to the fan and pump body via wires.

[0014] Specifically, a threaded groove is provided at the center of the top of the transfer component. The outlet end of the water inlet chamber and the inlet end of the water outlet chamber are respectively connected to the lower surface of the threaded groove and communicate with the inside of the threaded groove. The filter component is threadedly connected in the threaded groove.

[0015] Specifically, the filter assembly includes a filter cartridge, the bottom of which has a screw-on end that engages with a threaded groove, the middle of which has a protrusion that engages with the top of the water outlet chamber, the top of which is connected to an inner cylinder, a water inlet channel between the top of the inner cylinder and the inner wall of the filter cartridge, and a filter element between the inner cylinder and the filter cartridge.

[0016] The beneficial effects of this utility model are:

[0017] The main body is divided into upper and lower chambers by a horizontal partition, which physically isolates the coolant circulation from the power components, reduces heat conduction interference, concentrates heat dissipation elements in the upper chamber, and arranges the power components in the lower chamber, thereby improving space utilization.

[0018] By setting up a threaded detachable connection structure between the transfer component and the filter assembly, the filter assembly can be quickly disassembled and installed. During maintenance, the filter assembly can be unscrewed to directly replace or clean the internal filter element without draining the coolant, which greatly shortens maintenance time and downtime and reduces maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an angle structure on the front side of this utility model;

[0020] Figure 2 This is a schematic diagram of another angle structure of the front side of this utility model;

[0021] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the transfer component structure of this utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0024] In the picture:

[0025] 1-Main body; 101-Upper mounting cavity; 102-Lower mounting cavity; 103-Water inlet connector; 104-Water outlet connector;

[0026] 2-Coolant delivery assembly; 201-Water tank; 202-Pump body; 203-Hollow column; 204-Delivery pipe; 205-Drain outlet; 206-Drain valve; 207-Inlet pipe;

[0027] 3-Heat dissipation assembly; 301-Heat sink; 302-Coil; 303-Fan; 304-Outlet pipe; 305-Sealed connector;

[0028] 4-Transfer component; 401-Dating end; 402-Inlet channel; 403-Outlet channel; 404-Outlet pipe;

[0029] 5-Filter assembly; 501-Filter cartridge; 502-Protrusion; 503-Inner cylinder; 504-Filter element;

[0030] 6- Junction box;

[0031] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] like Figures 1-5 As shown, a permanent magnet motor cooling device includes a main body 1. The interior of the main body 1 is divided into an upper mounting cavity 101 and a lower mounting cavity 102 by a horizontal partition. It also includes a coolant delivery assembly 2, which includes a water tank 201 installed on one side of the lower mounting cavity 102 and a pump body 202 installed on the other side and connected to the water tank 201. A hollow column 203 is provided between the upper and lower inner walls of the upper mounting cavity 101. A delivery pipe 204 connected to the bottom of the hollow column 203 is provided at the outlet of the pump body 202. A drain outlet 205 is provided at the bottom of one side of the water tank 201, and a drain valve 206 is provided on the drain outlet 205.

[0034] The main body 1 is divided into upper and lower chambers by a horizontal partition, which physically isolates the coolant circulation from the power components, reducing heat conduction interference. The upper chamber houses the heat dissipation elements, while the lower chamber houses the power components, improving space utilization. The hollow column 203 serves as the coolant distribution center, simplifying the piping layout and reducing the risk of joint leakage. Its function is to distribute the coolant output from the pump body 202 to the heat dissipation components 3 on both sides.

[0035] Specifically, the main body 1 serves as the basic frame of the device, and its interior is divided into an upper mounting cavity 101 and a lower mounting cavity 102 by a horizontal partition, which are used to integrate components with different functions. The water tank 201 is installed on one side of the lower mounting cavity 102 to store coolant and provide a liquid source for the cooling cycle. The pump body 202 is installed on the other side of the lower mounting cavity 102 to drive the flow of coolant as a power source, and pumps the coolant in the water tank 201 into the hollow column 203 through the delivery pipe 204.

[0036] The heat dissipation assembly 3 includes heat sinks 301, coils 302, and fans 303. Two pairs of heat sinks 301 are respectively installed on the front inner wall of the upper mounting cavity 101 and are symmetrically arranged on both sides of the hollow column 203. The coils 302 are arranged in a serpentine pattern between a pair of heat sinks 301. The inlet end of the coil 302 is connected to the hollow column 203, and the outlet end of the coil 302 is connected to an outlet pipe 304. Two fans 303 are respectively installed on the rear inner wall of the upper mounting cavity 101 and correspond one-to-one with the heat sinks 301. The inlet end of the coil 302 is provided with a sealing plug end 305, which is plugged and fixed to the top of both sides of the hollow column 203.

[0037] A fan 303 is paired with the heatsink 301, and the fan speed can be adjusted independently. The heat dissipation efficiency is higher than that of a single fan solution. The serpentine layout of the coil 302 extends the coolant path. Together with the aluminum heatsink 301, the heat exchange area can be increased to achieve rapid cooling.

[0038] Specifically, the coolant flows inside the coil 302, and the heat sink 301 increases the contact area with the air to achieve heat dissipation. The heat sink 301 is arranged parallel to the inner and outer sides of the coil 302 to further expand the heat dissipation area and improve the heat exchange efficiency. The fan 303 is located on one side of the inner heat sink 301, which enhances the heat dissipation effect by accelerating the air flow and reducing the coolant temperature. The outlet pipe 304 is connected to the outlet end of the coil 302 to transport the cooled coolant to the transfer unit 4.

[0039] The transfer component 4 is installed in the middle of the bottom rear side of the upper mounting cavity 101. It has docking ends 401 on both sides that connect to the outlet pipe 304. Inside the transfer component 4 are two inlet channels 402 and one outlet channel 403 connected to the docking ends 401. The inlet channels 402 are used to introduce cooled coolant, and the outlet channel 403 is used to discharge filtered coolant. A filter assembly 5 is detachably installed on the top of the transfer component 4, connecting to the inlet channels 402 and the outlet channel 403 respectively. The core function of the filter assembly 5 is to filter impurities in the coolant and prevent blockage of the cooling water channels. An outlet pipe 404 is provided on one side of the outlet channel 403, and an inlet pipe 207 is provided on one side of the water tank 201. An inlet connector 103 and an outlet connector 104 are respectively installed on one side of the main body 1. The outlet pipe 404 is connected to the outlet connector 104, and the inlet pipe 207 is connected to the inlet connector 103. The inlet connector 103 is used to replenish or replace the coolant, and the outlet connector 104 outputs the filtered coolant to the permanent magnet motor to complete the cooling cycle.

[0040] A junction box 6 is installed on one side of the lower mounting cavity 102, and the junction box 6 is electrically connected to the fan 303 and the pump body 202 through wires to provide power support for the two and ensure coordinated operation.

[0041] The transfer component 4 has a threaded groove at the top center. The outlet end of the water inlet chamber 402 and the inlet end of the water outlet chamber 403 are respectively connected to the lower surface of the threaded groove and communicate with the inside of the threaded groove. The filter assembly 5 is threadedly connected in the threaded groove. The filter assembly 5 includes a filter cylinder 501. The bottom of the filter cylinder 501 is provided with a screw-on end that mates with the threaded groove to achieve quick assembly and disassembly. The middle of the screw-on end is provided with a protrusion 502 that mates with the top of the water outlet chamber 403 to ensure that the filtered coolant flows accurately into the water outlet chamber 403. The top of the protrusion 502 is connected to an inner cylinder 503 to guide the filtered coolant into the water outlet chamber 403. A water inlet channel is left between the top of the inner cylinder 503 and the inner wall of the filter cylinder 501. A filter element 504 is provided between the inner cylinder 503 and the filter cylinder 501 to filter impurities from the coolant flowing into the water inlet channel.

[0042] In operation, the coolant enters the hollow column 203 through the pump body 202 and the delivery pipe 204, and then enters the coils 302 on both sides. The coolant flows within the coils 302, achieving heat dissipation through the heat sink 301. The fan 303 accelerates airflow to enhance heat dissipation and lower the coolant temperature. The coolant is then delivered to the transfer unit 4 through the outlet pipe 304. After entering the inlet chamber 402, the coolant enters the filter element 504 for filtration, then flows through the inner cylinder 503 into the outlet chamber 403, and finally is discharged through the outlet pipe 404. For maintenance or replacement of the filter assembly 5, it can be simply unscrewed.

[0043] This utility model achieves quick assembly and disassembly of the filter assembly 5 by setting a threaded detachable connection structure between the transfer component and the filter assembly 5. During maintenance, the filter element 504 inside can be directly replaced or cleaned simply by unscrewing the filter assembly 5, without the need to drain the coolant. This greatly shortens maintenance time and downtime, and reduces maintenance costs.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A permanent magnet motor cooling device, comprising a main body (1), the interior of which is divided into an upper mounting cavity (101) and a lower mounting cavity (102) by a horizontal partition, characterized in that, Also includes: The coolant delivery assembly (2) includes a water tank (201) installed on one side of the lower mounting cavity (102), a pump body (202) installed on the other side and connected to the water tank (201), a hollow column (203) is provided between the upper and lower inner walls of the upper mounting cavity (101), and a delivery pipe (204) connected to the bottom of the hollow column (203) is provided at the outlet of the pump body (202); The heat dissipation assembly (3) includes heat sinks (301), coils (302), and fans (303). Two pairs of heat sinks (301) are respectively installed on the inner wall of the front side of the upper mounting cavity (101) and are symmetrically arranged on both sides of the hollow column (203). The coils (302) are arranged in a serpentine pattern between a pair of heat sinks (301). The inlet end of the coil (302) is connected to the hollow column (203), and the outlet end of the coil (302) is connected to the outlet pipe (304). Two fans (303) are respectively installed on the inner wall of the rear side of the upper mounting cavity (101) and correspond one-to-one with the heat sinks (301). The transfer component (4) is installed in the middle of the bottom rear side of the upper mounting cavity (101). It has docking ends (401) on both sides that are connected to the outlet pipe (304). The transfer component (4) has two water inlet channels (402) connected to the docking ends (401) and one water outlet channel (403) inside. The top of the transfer component (4) is detachably equipped with filter components (5) that are connected to the water inlet channels (402) and the water outlet channel (403) respectively.

2. The permanent magnet motor cooling device according to claim 1, characterized in that, A drain outlet (205) is provided on the bottom side of the water tank (201), and a drain valve (206) is provided on the drain outlet (205).

3. The permanent magnet motor cooling device according to claim 1, characterized in that, The inlet end of the coil (302) is provided with a sealing plug end (305), which is plugged and fixed to the top of both sides of the hollow column (203).

4. A permanent magnet motor cooling device according to claim 1, characterized in that, A water outlet pipe (404) is provided on one side of the water outlet chamber (403), and a water inlet pipe (207) is provided on one side of the water tank (201). A water inlet connector (103) and a water outlet connector (104) are respectively installed on one side of the main body (1). The water outlet pipe (404) is connected to the water outlet connector (104), and the water inlet pipe (207) is connected to the water inlet connector (103).

5. A permanent magnet motor cooling device according to claim 1, characterized in that, A junction box (6) is installed on one side of the lower mounting cavity (102), and the junction box (6) is electrically connected to the fan (303) and the pump body (202) through wires.

6. A permanent magnet motor cooling device according to claim 1, characterized in that, The transfer component (4) has a threaded groove at the top center. The outlet end of the water inlet cavity (402) and the inlet end of the water outlet cavity (403) are respectively connected to the lower surface of the threaded groove and communicate with the inside of the threaded groove. The filter assembly (5) is threadedly connected in the threaded groove.

7. A permanent magnet motor cooling device according to claim 6, characterized in that, The filter assembly (5) includes a filter cartridge (501). The bottom of the filter cartridge (501) is provided with a screw end that is screwed into a threaded groove. The middle of the screw end is provided with a protrusion (502) that is mated with the top of the water outlet chamber (403). The top of the protrusion (502) is connected to an inner cylinder (503). A water inlet channel is left between the top of the inner cylinder (503) and the inner wall of the filter cartridge (501). A filter element (504) is provided between the inner cylinder (503) and the filter cartridge (501).

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