Drainage equipment and motor heat dissipation device thereof

Abstract

The utility model discloses drainage equipment and a motor heat dissipation device thereof, the motor heat dissipation device comprises a motor, a drainage pump and a water-cooling heat dissipation mechanism, the motor is connected with the drainage pump and is used for driving the drainage pump to pump water, a cooling water channel is arranged in a shell of the motor, the cooling water channel is connected with the water-cooling heat dissipation mechanism, and the water-cooling heat dissipation mechanism is connected with the water-cooling heat dissipation mechanism. And the water-cooling heat dissipation mechanism is used for injecting cooling water into the cooling water channel so as to dissipate heat of the motor. The drainage pump is mechanically connected with the motor, receives power output of the motor and executes a water pumping function. Water is large in heat capacity and high in heat conductivity coefficient, heat in the motor can be rapidly taken away through the water-cooling heat dissipation mechanism, the temperature of the motor is effectively reduced, motor damage caused by overheating is avoided, and the service life of the motor and the service life of the whole drainage equipment are remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency equipment, in particular to a motor heat dissipation device for drainage equipment. Background Art

[0002] Emergency drainage equipment is specialized equipment used to urgently remove accumulated water in urban or rural areas during natural disasters such as heavy rain and flooding, preventing or mitigating the threat to life and property. These devices are typically highly maneuverable and capable of discharging large amounts of water in a short period of time. Emergency drainage equipment includes drainage vehicles and drainage robots (also known as mobile pumping stations). A search revealed the structure of drainage vehicles, as documented in patent number CN218055426U, and the structure of drainage robots, as documented in patent numbers CN113323860A and CN217735762U.

[0003] Existing emergency rescue equipment typically pumps water using motors, typically hydraulic motors rather than electric motors. Motors generate significant heat when running at high loads for extended periods. If heat isn't dissipated promptly and effectively, the motors can overheat, reducing drainage efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a motor heat dissipation device for drainage equipment to solve the problem that the motor will generate a lot of heat when running at high load for a long time. If the heat is not dissipated in time and effectively, the drainage efficiency will be reduced.

[0005] To achieve the above-mentioned purpose, this embodiment provides a motor heat dissipation device for a drainage device, including a motor, a drainage pump and a water-cooling heat dissipation mechanism. The motor is connected to the drainage pump and is used to drive the drainage pump to pump water. A cooling water channel is provided in the housing of the motor, and the cooling water channel is connected to the water-cooling heat dissipation mechanism. The water-cooling heat dissipation mechanism is used to inject cooling water into the cooling water channel to dissipate heat from the motor.

[0006] Furthermore, the water-cooled heat dissipation mechanism includes a water-cooled radiator and a water pump, the water-cooled radiator includes a water tank and a heat exchanger, the water outlet of the water tank is connected to the water inlet of the cooling water channel through a water inlet pipe, the water pump and the water inlet of the cooling water channel, and the water inlet of the water tank is connected to the water outlet of the cooling water channel through a water outlet pipe and the heat exchanger.

[0007] Furthermore, the heat exchanger is an air cooler.

[0008] Furthermore, the water pump is a diaphragm pump.

[0009] Furthermore, the water-cooled heat dissipation mechanism includes a water inlet pipe and a water outlet pipe, the drainage pump has a high-pressure water outlet pipe and a low-pressure water inlet pipe, the pipe wall of the high-pressure water outlet pipe is provided with a first slot hole, the first slot hole is connected to the water inlet of the cooling water channel through the water inlet pipe, the pipe wall of the low-pressure water inlet pipe is provided with a second slot hole, the second slot hole is connected to the water outlet of the cooling water channel through the water outlet pipe.

[0010] Furthermore, the water-cooling heat dissipation mechanism also includes a filter, and the filter is connected in series with the water inlet pipe.

[0011] Furthermore, a one-way valve is included, which is connected in series with the water outlet pipe to prevent water in the water outlet pipe from flowing back to the cooling water channel.

[0012] Furthermore, the drainage pump is a high- and low-pressure fire pump, and its rated outlet pressure is greater than or equal to 0.8 MPa.

[0013] To achieve the above objectives, this embodiment also provides a drainage device, which includes a drainage robot and a motor heat dissipation device as described in any of the above embodiments. The drainage robot has a crawler chassis, and the motor heat dissipation device is provided on the crawler chassis.

[0014] To achieve the above-mentioned purpose, this embodiment also provides a drainage device, including a drainage vehicle and a motor cooling device as described in any of the above-mentioned embodiments, wherein the drainage vehicle is provided with a cab, an engine, and a generator, wherein the engine is connected to the generator, and the generator is connected to the motor of the motor cooling device.

[0015] Different from the existing technology, the above technical solution has the following beneficial effects:

[0016] The drainage pump is mechanically connected to the motor, receiving power from the motor to pump water. Water has a large heat capacity and high thermal conductivity. Through the water-cooling mechanism, it quickly removes heat from the motor, effectively reducing the motor's temperature and preventing damage from overheating. This significantly extends the service life of the motor and the entire drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of the water cooling mechanism described in Example 1;

[0018] Figure 2 This is a second perspective view of the water cooling and heat dissipation mechanism described in Example 1;

[0019] Figure 3 This is a perspective view of the water cooling mechanism described in Example 2;

[0020] Figure 4This is a second perspective view of the water cooling and heat dissipation mechanism described in Example 2;

[0021] Figure 5 This is a three-dimensional diagram of the drainage robot described in this embodiment;

[0022] Figure 6 It is a side view of the drainage vehicle described in this embodiment.

[0023] Description of reference numerals:

[0024] 1. Motor;

[0025] 2. Drain pump; 21. Low-pressure water inlet pipe; 211. Second slot; 22. High-pressure water outlet pipe; 221. First slot;

[0026] 3. Water cooling mechanism;

[0027] 31. Water tank; 32. Water pump; 33. Heat exchanger; 331. Fan; 332. Motor; 34. Water inlet pipe; 35. Water outlet pipe; 36. Filter; 37. One-way valve; 38. Water inlet pipe; 39. Water outlet pipe;

[0028] 4. Drainage equipment;

[0029] 41. Drainage vehicle; 42. Drainage robot. DETAILED DESCRIPTION

[0030] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0031] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0032] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0033] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0034] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0035] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0036] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0037] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0038] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] See also Figures 1 to 4 This embodiment provides a motor heat dissipation device for a drainage device, including a motor 1, a drainage pump 2 and a water-cooling heat dissipation mechanism 3. The motor 1 is connected to the drainage pump 2 and is used to drive the drainage pump 2 to pump water. A cooling water channel is provided in the housing of the motor 1, and the cooling water channel is connected to the water-cooling heat dissipation mechanism 3. The water-cooling heat dissipation mechanism 3 is used to inject cooling water into the cooling water channel to dissipate heat from the motor 1.

[0040] The drainage pump 2 is mechanically connected to the motor 1, receives power output from the motor 1, and performs a water pumping function.

[0041] Motor 1's cooling water channels are designed inside the motor's housing, surrounding its primary heat-generating components, such as the stator and rotor. When motor 1 is running, cooling water is fed into these channels. As the water flows through the channels, it absorbs heat generated by motor 1, raising its temperature. The hot water is then returned to the exterior of motor 1.

[0042] Water has a large heat capacity and a high thermal conductivity. Through the water-cooling heat dissipation mechanism 3, it can quickly take away the heat inside the motor 1, effectively reduce the temperature of the motor 1, avoid damage to the motor 1 due to overheating, and significantly extend the service life of the motor 1 and the entire drainage equipment 4.

[0043] See also Figures 1 to 4 In this embodiment, the drainage pump 2 is a high and low pressure fire pump, and its rated outlet pressure is greater than or equal to 0.8 MPa. The rated outlet pressure can be detected by a pressure sensor. When the fire pump is in the rated power state, the outlet pressure is greater than or equal to 0.8 MPa, which can ensure that the fire pump has a large head and can perform remote water supply operations. When the fire pump is in the rated state, its rated outlet pressure can be 0.8 MPa, 1.0 MPa, 1.5 MPa, 3.0 MPa, 3.5 MPa, 4.0 MPa, etc., depending on actual needs. Taking the rated outlet pressure of 0.8 MPa of the fire pump as an example, when the speed or pressure of the fire pump is changed, the fire pump is in a light load state, and its water outlet pressure is less than 0.8 MPa. Such a technical solution also falls within the scope of protection of this application.

[0044] Several embodiments of the water cooling mechanism 3 are listed below for readers' reference:

[0045] Example 1

[0046] See also Figures 1 to 2 In this embodiment, the water-cooled heat dissipation mechanism 3 includes a water-cooled radiator and a water pump 32. The water-cooled radiator includes a water tank 31 for storing cooling water and a heat exchanger 33 for cooling the hot water after circulation. The water outlet of the water tank 31 is connected to the water inlet of the cooling water channel through the water inlet pipe 34, the water pump 32, and the water inlet of the cooling water channel. The water inlet of the water tank 31 is connected to the water outlet of the cooling water channel through the water outlet pipe 35 and the heat exchanger 33. The water inlet pipe 34 is drawn from the water outlet of the water tank 31, pressurized by the water pump 32, and then connected to the water inlet of the cooling water channel to realize the transportation of cooling water. The water outlet pipe 35 is drawn from the water outlet of the cooling water channel, connected to the heat exchanger 33 for heat exchange, and then returned to the water inlet of the water tank 31.

[0047] Cooling water is pumped from water tank 31 by pump 32 and enters the cooling water channel within the motor 1 housing through inlet pipe 34. The cooling water flows through the channel, absorbing heat generated by motor 1. The heated cooling water flows out of the cooling water channel outlet and enters heat exchanger 33 through outlet pipe 35. In heat exchanger 33, the cooling water exchanges heat with the external environment (such as air) or a cooling medium, releasing heat and cooling down. The cooled water returns to water tank 31 through outlet pipe 35, awaiting the next cycle.

[0048] See also Figures 1 to 2 In this embodiment, the heat exchanger 33 is an air cooler. An air cooler generally includes a cooling coil (with cooling water flowing inside), a fan 331 (for accelerating air flow), a motor 332, and a frame, which can be fixed to the water tank 31. The motor 332 is connected to the shaft of the fan 331 and can drive the fan 331 to rotate. This forced air flow improves heat exchange efficiency and quickly dissipates heat from the cooling water into the atmosphere. The power for the motor 332 can be provided by the drainage device 4.

[0049] See also Figure 1 In this embodiment, the water pump 32 is a diaphragm pump. The diaphragm pump is a pump that realizes liquid transmission through the reciprocating motion of the diaphragm. It continuously changes the volume in the pump chamber, thereby realizing continuous suction and discharge of cooling water, ensuring the stable circulation of cooling water.

[0050] See also Figures 1 to 2 In this embodiment, the water tank 31 of the water-cooled radiator can be fixed to the rescue equipment through the bracket bolts at the bottom.

[0051] Example 2

[0052] See also Figures 3 and 4 In this embodiment, the water-cooling heat dissipation mechanism 3 includes an inlet pipe 38 and an outlet pipe 39. The drain pump 2 has a high-pressure outlet pipe 22 and a low-pressure inlet pipe 21. The high-pressure outlet pipe 22 has a first slot 221 formed in its wall, connected to the cooling water channel's inlet via the inlet pipe 38. The low-pressure inlet pipe 21 has a second slot 211 formed in its wall, connected to the cooling water channel's outlet via the outlet pipe 39. The pressure in the outlet pipe of the drain pump 2 is greater than the pressure in the inlet pipe, resulting in high pressure in the outlet pipe and low pressure in the inlet pipe. The pressure difference between the inlet and outlet pipes allows water to be drawn from the drain pump 2 for cooling and heat dissipation. Water (i.e., cooling water) drawn from the water source by the drain pump 2 enters the cooling water channel within the motor 1 housing through the first slot 221 in the high-pressure outlet pipe 22. The cooling water flows through the cooling water channel, absorbing heat generated by the motor 1. The heated cooling water flows out from the water outlet of the cooling water channel and enters the low-pressure water inlet pipe 21 of the drainage pump 2 through the water outlet pipe 39 .

[0053] The first slot 221 and the second slot 211 are small, measuring only a few millimeters, and therefore do not significantly affect the normal pumping capacity of the drain pump 2. This ensures that the drain pump 2 can effectively cool the motor 1 while performing its pumping task. By utilizing a portion of the water pumped by the drain pump 2 as cooling water, which circulates directly through the cooling water channels within the motor 1 housing, effective heat dissipation from the motor 1 is achieved. This design not only simplifies the connection between the water-cooling heat dissipation mechanism 3 and the motor 1, improving the system's heat dissipation efficiency and structural compactness, but also reduces costs.

[0054] See also Figure 3 In this embodiment, the water-cooling mechanism 3 further includes a filter 36 connected in series with the water inlet pipe 38 to filter impurities from the cooling water. Before the water (i.e., cooling water) drawn from the water source by the drain pump 2 passes through the first slot 221 in the high-pressure outlet pipe 22 and enters the cooling water channel within the motor 1 housing, it is first filtered out by the filter 36 to ensure the cleanliness of the cooling water and prevent clogging of the cooling water channel.

[0055] See also Figure 4 In this embodiment, the water-cooling heat dissipation mechanism 3 further includes a one-way valve 37 connected in series with the water outlet pipe 39 to prevent water in the water outlet pipe 39 from flowing back into the cooling water channel. The one-way valve 37, installed on the water outlet pipe 39, allows the cooling water to flow in a predetermined direction—from the water outlet pipe 39 to the low-pressure water inlet pipe 21. This prevents the cooling water from flowing back into the cooling water channel under abnormal circumstances, causing poor cooling water circulation.

[0056] See also Figure 5This embodiment also provides a drainage device 4, which includes a drainage robot 42 and a motor heat dissipation device as described in any of the above embodiments. The drainage robot 42 has a crawler chassis, and the crawler chassis is provided with a motor heat dissipation device.

[0057] The crawler chassis provides the entire drainage robot 42 with walking capabilities, enabling it to move across various terrains and reach designated drainage locations. A motor heat sink is mounted on the crawler chassis. Motor 1 drives drainage pump 2 to pump water from the designated area. Heat generated by motor 1 during operation is effectively dissipated by water-cooling mechanism 3, ensuring that motor 1 operates within a suitable temperature range, improving its operating efficiency and extending its service life.

[0058] See also Figure 6 This embodiment also provides a drainage device 4, which includes a drainage vehicle 41 and a motor heat dissipation device as described in any of the above embodiments. The drainage vehicle 41 has a wheeled chassis, and an engine and a generator are provided on the drainage vehicle 41. The engine is connected to the generator, and the generator is connected to the motor 1 of the motor heat dissipation device.

[0059] The wheeled chassis supports the entire drainage vehicle 41 and provides road mobility. The drainage vehicle 41 is powered by an engine, typically a diesel or gasoline engine. The engine drives a generator that provides electricity to the motor 1 in the motor heat sink.

[0060] It should be noted that the drainage vehicle 41 is typically designed based on an automobile chassis, featuring a wheeled system suitable for driving on relatively flat roads. It is equipped with a cockpit, allowing the operator to control the vehicle and monitor drainage operations. The drainage robot 42 typically utilizes a tracked or wheeled chassis, offering a more compact design suitable for use in narrow or rugged terrain. The drainage robot 42 is equipped with a remote control, which the operator uses to control its movement and pumping.

[0061] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A motor heat dissipation device for drainage equipment, characterized in that: The motor comprises a motor, a drainage pump and a water-cooling heat dissipation mechanism, wherein the motor is connected to the drainage pump and is used to drive the drainage pump to pump water. A cooling water channel is provided in the housing of the motor, and the cooling water channel is connected to the water-cooling heat dissipation mechanism. The water-cooling heat dissipation mechanism is used to inject cooling water into the cooling water channel to dissipate heat from the motor. The water-cooled heat dissipation mechanism includes a water-cooled radiator and a water pump. The water-cooled radiator includes a water tank and a heat exchanger. The water outlet of the water tank is connected to the water inlet of the cooling water channel through a water inlet pipe, a water pump and the water inlet of the cooling water channel. The water inlet of the water tank is connected to the water outlet of the cooling water channel through a water outlet pipe and the heat exchanger.

2. The motor heat dissipation device according to claim 1, characterized in that: The heat exchanger is an air cooler.

3. The motor heat dissipation device according to claim 1 or 2, characterized in that: The water pump is a diaphragm pump.

4. The motor heat dissipation device according to claim 1, characterized in that: The water-cooling heat dissipation mechanism includes a water inlet pipe and a water outlet pipe, the drainage pump has a high-pressure water outlet pipe and a low-pressure water inlet pipe, the pipe wall of the high-pressure water outlet pipe is provided with a first slot hole, the first slot hole is connected to the water inlet of the cooling water channel through the water inlet pipe, the pipe wall of the low-pressure water inlet pipe is provided with a second slot hole, the second slot hole is connected to the water outlet of the cooling water channel through the water outlet pipe.

5. The motor heat dissipation device according to claim 4, characterized in that: The water-cooling heat dissipation mechanism further includes a filter, which is connected in series with the water inlet pipe.

6. The motor heat dissipation device according to claim 4 or 5, characterized in that: It also includes a one-way valve, which is connected in series with the water outlet pipe and is used to prevent water in the water outlet pipe from flowing back to the cooling water channel.

7. The motor heat dissipation device according to claim 1, characterized in that: The drainage pump is a high- and low-pressure fire pump, and its rated outlet pressure is greater than or equal to 0.8 MPa.

8. A drainage device, characterized in that: The drainage equipment includes a drainage robot and a motor heat dissipation device according to any one of claims 1 to 7, wherein the drainage robot has a crawler chassis, and the motor heat dissipation device is provided on the crawler chassis.

9. A drainage device, characterized in that: A drainage vehicle comprises the motor heat dissipation device according to any one of claims 1 to 7, wherein the drainage vehicle is provided with a cab, an engine, and a generator, wherein the engine is connected to the generator, and the generator is connected to the motor of the motor heat dissipation device.

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