Water-cooled heat exchanger

Abstract

The utility model discloses a water-cooled heat exchanger, which relates to the technical field of motor heat dissipation, and comprises a box body provided with an oil inlet pipeline, an oil outlet pipeline, a water absorption pipeline and a water return pipeline, the oil inlet pipeline and the oil outlet pipeline are connected with a motor to be cooled, and the water absorption pipeline and the water return pipeline are communicated with a water tower; the cooler comprises a cooling pipe shell and a cooling assembly, a water cooling space is reserved between the inner wall of the cooling pipe shell and the outer wall of the cooling assembly, and the water cooling space is communicated with the water suction pipeline and the water return pipeline to serve as a water cooling channel; the cooling assembly is communicated with the oil inlet pipeline and the oil outlet pipeline to serve as an oil cooling channel; the oil cooling channel and the water cooling channel are mutually closed and only perform heat exchange, so that the motor cooling process is continuous and reliable, the influence of water quality on the continuity of cooling work is avoided, the water replenishing tank replenishes water to the position of the water suction pipeline, and stable suction force is ensured when the water pump pumps water to the cooler.

Description

Technical Field

[0001] The utility model relates to the technical field of motor heat dissipation, in particular to a water-cooled heat exchanger. Background Art

[0002] The power of the motor is relatively high, and a lot of heat will be generated during the actual operation. In order to ensure the efficiency of the motor and the safety of operation, the heat dissipation problem needs to be properly handled according to the heating situation of the motor. This process is often achieved by using a heat exchanger, specifically using air-water cooling for heat exchange, in which water cooling introduces cooling water through an external cooling water tower. However, in practice, the cooling effect of the heat exchanger of the air-water cooling method is not high enough, which is not conducive to the miniaturization of the device. Moreover, the water introduced from the water tower is prone to unstable water supply due to water supply, pipeline water pressure, scale and other reasons, which further affects the cooling effect. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a water-cooled heat exchanger.

[0004] According to the utility model, the water-cooled heat exchanger comprises: a box body, which is provided with an oil inlet pipe, an oil outlet pipe, a water suction pipe and a return water pipe, wherein the oil inlet pipe and the oil outlet pipe are connected to the motor to be cooled, and the water suction pipe and the return water pipe are connected to a water tower; a cooler is arranged in the box body, and the cooler comprises a cooling tube shell and a cooling component, the cooling tube shell is sleeved on the outside of the cooling component, and a water cooling space is reserved between the inner wall of the cooling tube shell and the outer wall of the cooling component, the water cooling space is connected with the water suction pipe and the return water pipe as a water cooling channel, and the cooling component is connected with the oil inlet pipe and the oil outlet pipe as an oil cooling channel; a water pump is arranged on the water suction pipe, and the water suction input end of the water suction pipe is connected to the water cooling space; a water supply tank is connected to the water suction pipe through a water supply pipe.

[0005] According to some embodiments of the present utility model, the water replenishment input end of the water replenishment pipe is connected to the lower side of the water replenishment tank, and the water replenishment output end of the water replenishment pipe is connected to a position between the water pump and the water suction input end.

[0006] According to some embodiments of the utility model, a water tank observation window is provided on the water replenishment tank.

[0007] According to some embodiments of the present invention, the water pump is a DC brushless water pump.

[0008] According to some embodiments of the utility model, an exhaust valve is provided on the water intake pipe and / or the water return pipe.

[0009] According to some embodiments of the present utility model, an exhaust port facing the upper side is provided on the water absorption pipe and / or the water return pipe, the exhaust valve is connected to the exhaust port, a float is provided inside the exhaust valve, an exhaust hole is provided on the upper side of the exhaust valve, a valve rod is provided on the exhaust hole, a bottom support portion is provided at the lower end of the valve rod, and the float can顶住 the bottom support portion to jack up the valve rod upward so that the exhaust hole can exhaust gas.

[0010] According to some embodiments of the present utility model, the cooling assembly includes a copper pipe, and heat exchange fins are distributed on the copper pipe.

[0011] According to some embodiments of the present utility model, a drain pipe is provided on the lower side of the cooling tube shell, and the drain pipe is communicated with the water cooling space.

[0012] According to some embodiments of the present utility model, the cooler is of a horizontal cooler structure, a cooler bottom frame is provided between the cooler and the bottom wall of the box body, a connecting hoop is arranged around the cooler, and the connecting hoop is connected to the cooler bottom frame.

[0013] According to some embodiments of the present utility model, the cooler bottom frame is of a "C" - shaped structure, and the cooler bottom frame sequentially includes an upper connecting plate, a middle plate, and a lower connecting plate from top to bottom. The upper connecting plate supports the cooler, and the lower connecting plate is connected to the box body.

[0014] The water - cooled heat exchanger according to the embodiments of the present utility model has at least the following technical effects:

[0015] The oil inlet pipe and the oil outlet pipe are connected to the motor and the motor is cooled by circulating oil through the cooling oil. The water absorption pipe and the water return pipe are connected to the water tower and the cooling oil is cooled by circulating water supplied by the water tower, ensuring continuous circulation cooling of the motor. The oil - cooling channel and the water - cooling channel are mutually closed and only heat exchange occurs, which more effectively ensures the continuous and reliable cooling process of the motor and avoids the influence of water quality problems on the continuity of the cooling work. The water replenishing tank replenishes water at the position of the water absorption pipe to ensure stable suction when the water pump pumps water from the cooler.

[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a perspective view of the water - cooled heat exchanger of the present utility model;

[0019] Figure 2It is a structural schematic diagram of the cooler in the utility model;

[0020] Figure 3 It is a working schematic diagram of the cooler in the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the cooler in the utility model;

[0022] Figure 5 It is a working schematic diagram of the water replenishment tank in the utility model;

[0023] Figure 6 It is a working schematic diagram of the exhaust valve in the utility model.

[0024] Reference numerals:

[0025] Box body 100, cooler base frame 110, upper connecting plate 111, middle plate 112, lower connecting plate 113, connecting hoop 120; cooler 200, cooling tube shell 210, cooling assembly 220, copper tube 221, heat exchange fin 222, water cooling space 230, drain pipe 240; water pump 300; water supply tank 400, water supply pipe 410, water supply input end 411, water supply output end 412, water supply cover 420, water tank observation window 430; oil inlet pipeline 500; oil outlet pipeline 600; water suction pipeline 700, water suction input end 710; return water pipeline 800, return water input end 810; exhaust valve 900, exhaust port 901, float 910, exhaust hole 920, valve stem 930, bottom support part 931. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0028] In the description of the present utility model, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference below Figure 1 and Figure 2 A water-cooled heat exchanger according to an embodiment of the present invention is described.

[0031] like Figure 1 and Figure 2 As shown, the water-cooled heat exchanger according to the embodiment of the utility model includes a box body 100, a cooler 200, a water pump 300 and a water supply tank 400.

[0032] For example, Figure 1 and Figure 2 As shown, the box 100 is provided with an oil inlet pipeline 500, an oil outlet pipeline 600, a water suction pipeline 700, and a water return pipeline 800. The oil inlet pipeline 500 and the oil outlet pipeline 600 are connected to the motor to be cooled, and the water suction pipeline 700 and the water return pipeline 800 are connected to the water tower; the cooler 200 is arranged in the box 100, and the cooler 200 includes a cooling tube shell 210 and a cooling assembly 220. The cooling tube shell 210 is sleeved on the outer side of the cooling assembly 220, and the inner wall of the cooling tube shell 210 A water cooling space 230 is reserved between the outer wall of the cooling component 220. The water cooling space 230 is connected with the water suction pipe 700 and the return water pipe 800 as a water cooling channel. The cooling component 220 is connected with the oil inlet pipe 500 and the oil outlet pipe 600 as an oil cooling channel. The water pump 300 is arranged on the water suction pipe 700. The water suction input end 710 of the water suction pipe 700 is connected with the water cooling space 230. The water supply tank 400 is connected with the water suction pipe 700 through the water supply pipe 410.

[0033] Among them, refer to Figure 3 The oil inlet pipe 500 and the oil outlet pipe 600 are connected to the motor to be cooled as oil cooling channels, and the motor is cooled by the cooling oil. The water suction pipe 700 and the water return pipe 800 are connected to the water tower as water cooling channels, and then the water tower supplies water to cool the cooling oil by water cooling.

[0034] Reference Figure 2 , Figure 4The cooler 200 includes a cooling tube shell 210 and a cooling assembly 220. The cooling tube shell 210 is sleeved on the outside of the cooling assembly 220. A water cooling space 230 is left between the inner wall of the cooling tube shell 210 and the outer wall of the cooling assembly 220. The water cooling space 230 of the cooler 200 is connected to the water suction pipe 700 and the return water pipe 800 as a water cooling channel, and the water tower is used to supply water for continuous water cooling. The cooling assembly 220 is connected to the oil inlet pipe 500 and the oil outlet pipe 600 as an oil cooling channel to circulate and cool the motor. The water cooling channel and the oil cooling channel perform a heat exchange process in the cooler 200.

[0035] The water pump 300 is arranged on the water suction pipe 700, and the water suction input end 710 of the water suction pipe 700 is connected to the water cooling space 230, and is responsible for providing power for the water in the water cooling space 230 of the cooler 200 to flow back into the water tower. The water supply tank 400 is connected to the water suction pipe 700 through the water supply pipe 410, and is responsible for replenishing water when the water pump 300 is pumping water, so as to ensure that the water pump 300 maintains a stable suction force on the water in the cooler 200, and ensure that the water circulation in the water cooling channel continues. In addition, once the water in the cooler 200 becomes hot, the excess water caused by thermal expansion and contraction can also flow to the water supply tank 400, which is equivalent to automatically releasing pressure through the water supply tank 400. After the water is cooled, it is automatically replenished through the water supply tank 400.

[0036] In actual operation, the oil inlet pipe 500 and the oil outlet pipe 600 of the water-cooled heat exchanger of the utility model are connected to the motor, the water suction pipe 700 and the water return pipe 800 are connected to the water tower, and then the oil cooling channel circulates and cools the motor. After the oil cooling is completed, the cooling oil undergoes a heat exchange process in the cooler 200, that is, the cooling oil is cooled by the water cooling channel, ensuring that the oil cooling channel can continuously cool the motor.

[0037] The above working method does not allow the motor to be cooled directly through an external water tower, but through a relatively closed and compact oil cooling channel circulation cooling. Compared with the previous method of directly cooling through a water tower, it can better ensure the continuous reliability of the motor cooling process and avoid water quality problems affecting the continuity of cooling work.

[0038] In some embodiments of the present invention, referring to Figure 5The water replenishment input end 411 of the water replenishment pipe 410 is connected to the lower side of the water replenishment tank 400, and the water replenishment output end 412 of the water replenishment pipe 410 is connected to the position between the water pump 300 and the water suction input end 710. The water replenishment input end 411 is connected to the lower side of the water replenishment tank 400 to ensure that the water in the water replenishment tank 400 can be more easily replenished into the position between the water replenishment output end 412 and the water suction input end 710 of the water suction pipe 700 through the water replenishment pipe 410, and ensure that the space between the water replenishment output end 412 and the water suction input end 710 is kept full of water, so that the water pump 300 can maintain continuous suction when it needs to absorb water, and can be used as a liquid seal structure to prevent water from flowing back to the water tower when the water pump 300 does not need to work.

[0039] In some embodiments of the present invention, referring to Figure 1 , Figure 5 A water tank observation window 430 is provided on the water replenishment tank 400, so that workers can observe the water level status in the water replenishment tank 400 in real time.

[0040] In some embodiments of the present invention, a water replenishment hole is provided on the water replenishment tank 400, and a water replenishment cover 420 is provided on the water replenishment hole. A worker only needs to open the water replenishment cover 420 to add water to the water replenishment tank 400 through the water replenishment hole.

[0041] In some embodiments of the present invention, the water pump 300 is a brushless DC water pump. The brushless DC water pump has good sealing performance, ensuring that the water pump 300 can serve as a reliable liquid seal structure when it does not need to work, thereby preventing water from flowing back toward the water tower.

[0042] In some embodiments of the present invention, the return water pipe 800 is connected to the cooler 200 via the return water input end 810 .

[0043] In some embodiments of the present invention, referring to Figure 1 The water suction pipe 700 and / or the water return pipe 800 are provided with an exhaust valve 900 to reduce the internal pressure of the water suction pipe 700 and / or the water return pipe 800 to ensure the safety of the pipe. The exhaust valve 900 can exhaust the air in the water suction pipe 700 and / or the water return pipe 800. Once the air dissolved in the water forms bubbles or air columns in the pipe, the exhaust valve 900 can exhaust the air, and the water in the pipe flows normally and smoothly.

[0044] In some specific embodiments of the present invention, refer to Figure 6, an exhaust port 901 facing upward is provided on the water absorption pipe 700 and / or the return water pipe 800. The exhaust valve 900 is connected to the exhaust port 901. A float 910 is provided inside the exhaust valve 900. An exhaust hole 920 is provided on the upper side of the exhaust valve 900. A valve rod 930 is provided on the exhaust hole 920. The lower end of the valve rod 930 has a bottom support portion 931. The float 910 can hold against the bottom support portion 931 to push the valve rod 930 upward, so that the exhaust hole 920 can exhaust air.

[0045] In some embodiments of the present invention, referring to Figure 2 , the cooling assembly 220 includes a copper pipe 221, and heat exchange fins 222 are distributed on the copper pipe 221. The copper pipe 221 is combined with the heat exchange fins 222, which increases the heat exchange area between the cooling oil in the copper pipe 221 and the water in the water cooling space 230, and improves the cooling efficiency of the cooling oil.

[0046] In some embodiments of the present invention, referring to Figure 2 , Figure 3 , a drain pipe 240 is provided on the lower side of the cooling shell 210, and the drain pipe 240 is communicated with the water cooling space 230. By opening the drain pipe 240, the water in the cooler 200 can be conveniently drained for cleaning and maintenance.

[0047] In some embodiments of the present invention, the cooler 200 is of a horizontal cooler structure. A cooler bottom frame 110 is provided between the cooler 200 and the bottom wall of the box body 100. A connecting hoop 120 is arranged around the cooler 200, and the connecting hoop 120 is connected to the cooler bottom frame 110. The cooler 200 can be fixed in the box body 100 through the connecting hoop 120, and the connecting hoop 120 can adapt to coolers 200 with different shapes.

[0048] In some embodiments of the present invention, referring to Figure 1 , the cooler bottom frame 110 is of a "C"-shaped structure. The cooler bottom frame 110 sequentially includes an upper connecting plate 111, a middle plate 112, and a lower connecting plate 113 from top to bottom. The upper connecting plate 111 supports the cooler 200, and the lower connecting plate 113 is connected to the box body 100. This "C"-shaped structure enables the cooler bottom frame 110 to have a certain buffering effect by utilizing the elasticity of the material. When the cooler 200 is performing heat exchange, the vibration generated due to fluid impact can be reduced by the "C"-shaped cooler bottom frame 110, so that the vibration transmitted to the box body 100 is reduced, and the operation of the entire device is more stable and quiet.

[0049] In some specific embodiments of the present invention, the cooler bottom frame 110 includes a first cooler bottom frame and a second cooler bottom frame, and the "C"-shaped openings of the first cooler bottom frame and the second cooler bottom frame face opposite directions, so that the cooler 200 is more stable on the cooler bottom frame 110.

[0050] According to the cooling device of the embodiment of the utility model, the size of the equipment is reduced by adopting the above-mentioned water-cooled heat exchanger, which facilitates the miniaturization design of the cooling device and can improve the vibration and noise of the cooling device, thereby enhancing the user experience.

[0051] Other structures and operations of the cooling device according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0052] Reference below Figure 1 and Figure 2 The water-cooled heat exchanger according to the embodiment of the utility model is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description, and is not a specific limitation to the utility model.

[0053] like Figure 1 and Figure 2 As shown, the water-cooled heat exchanger of the utility model includes a box body 100, a cooler 200, a water pump 300, a water supply tank 400, an oil inlet pipeline 500, an oil outlet pipeline 600, a water suction pipeline 700, a water return pipeline 800, and an exhaust valve 900.

[0054] The box 100 is provided with a cooler chassis 110 and a connecting hoop 120 for fixing the cooler 200. The cooler 200 includes a cooling tube shell 210, a cooling assembly 220, and a drain pipe 240, wherein the gap formed between the cooling tube shell 210 and the cooling assembly 220 serves as a water cooling space 230. The cooling assembly 220 includes a copper tube 221 and a heat exchange fin 222.

[0055] The cooler 200 is a horizontal cooler. The cooler 200 is connected to the motor to be cooled through the oil inlet pipe 500 and the oil outlet pipe 600 passing through the box 100. The cooler 200 is connected to the water tower through the water suction pipe 700 and the water return pipe 800 passing through the box 100, and the water pump 300 is connected to the water suction pipe 700. The water suction pipe 700 is connected to the cooler 200 through the water suction input end 710, and the water return pipe 800 is connected to the cooler 200 through the water return input end 810. The water suction input end 710 and the water return input end 810 are arranged at the front and rear sides of the upper side of the cooler 200.

[0056] The water replenishment tank 400 is provided with a water replenishment cover 420 and a water tank observation window 430. The water replenishment tank 400 is connected to the water replenishment pipe 410 through the water replenishment input end 411, and the water replenishment pipe 410 is connected to the water suction pipe 700 through the water replenishment output end 412.

[0057] The exhaust valve 900 is installed at the exhaust port 901 on the water suction pipe 700 . The exhaust valve 900 includes a float 910 , an exhaust hole 920 , and a valve stem 930 . The valve stem 930 can support the float 910 through a bottom support portion 931 .

[0058] According to the water-cooled heat exchanger of the embodiment of the utility model, by such a configuration, at least the following effects can be achieved: the oil inlet pipe 500 and the oil outlet pipe 600 are connected to the motor and the motor is circulated with oil cooling through the cooling oil; the water suction pipe 700 and the water return pipe 800 are connected to the water tower and the cooling oil is circulated with water cooling through the water tower, ensuring the continuous circulation cooling of the motor; the oil cooling channel and the water cooling channel are mutually closed, and only heat exchange is performed, which can further ensure the continuous reliability of the motor cooling process and avoid the water quality problem affecting the continuity of the cooling work. The water supply tank 400 replenishes water at the position of the water suction pipe 700 to ensure that the water pump 300 maintains a stable suction force when pumping water to the cooler 200, and once the water in the cooler 200 becomes hot, the excess water caused by thermal expansion and contraction can also flow to the water supply tank 400, which is equivalent to automatically releasing the pressure through the water supply tank 400, and after the water is cooled, it is automatically replenished through the water supply tank 400 to ensure the continuous circulation of the water in the water cooling channel.

[0059] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water-cooled heat exchanger, characterized in that: include: The box body (100) is provided with an oil inlet pipeline (500), an oil outlet pipeline (600), a water suction pipeline (700), and a water return pipeline (800), wherein the oil inlet pipeline (500) and the oil outlet pipeline (600) are connected to the motor to be cooled, and the water suction pipeline (700) and the water return pipeline (800) are connected to a water tower; A cooler (200) is arranged in the box body (100), the cooler (200) comprising a cooling tube shell (210) and a cooling assembly (220), the cooling tube shell (210) being sleeved on the outside of the cooling assembly (220), a water cooling space (230) being reserved between the inner wall of the cooling tube shell (210) and the outer wall of the cooling assembly (220), the water cooling space (230) being connected to the water suction pipe (700) and the water return pipe (800) as a water cooling channel, and the cooling assembly (220) being connected to the oil inlet pipe (500) and the oil outlet pipe (600) as an oil cooling channel; A water pump (300) is provided on the water suction pipe (700), and a water suction input end (710) of the water suction pipe (700) is connected to the water cooling space (230); The water replenishment tank (400) is connected to the water absorption pipeline (700) via a water replenishment pipe (410).

2. The water-cooled heat exchanger according to claim 1, characterized in that: The water replenishment input end (411) of the water replenishment pipe (410) is connected to the lower side of the water replenishment tank (400), and the water replenishment output end (412) of the water replenishment pipe (410) is connected to a position between the water pump (300) and the water absorption input end (710).

3. The water-cooled heat exchanger according to claim 1, characterized in that: The water replenishment tank (400) is provided with a water tank observation window (430).

4. The water-cooled heat exchanger according to claim 1, characterized in that: The water pump (300) is a direct current brushless water pump.

5. The water-cooled heat exchanger according to claim 1, characterized in that: An exhaust valve (900) is provided on the water intake pipe (700) and / or the water return pipe (800).

6. The water-cooled heat exchanger according to claim 5, characterized in that: The water intake pipe (700) and / or the water return pipe (800) is provided with an exhaust port (901) facing upward, the exhaust valve (900) is connected to the exhaust port (901), a float (910) is provided inside the exhaust valve (900), an exhaust hole (920) is provided on the upper side of the exhaust valve (900), a valve stem (930) is provided on the exhaust hole (920), a bottom support portion (931) is provided at the lower end of the valve stem (930), and the float (910) can support the bottom support portion (931) to push the valve stem (930) upward, so that the exhaust hole (920) can exhaust air.

7. The water-cooled heat exchanger according to claim 1, characterized in that: The cooling component (220) comprises a copper tube (221), and heat exchange fins (222) are distributed on the copper tube (221).

8. The water-cooled heat exchanger according to claim 1, characterized in that: A drainage pipe (240) is provided at the lower side of the cooling tube shell (210), and the drainage pipe (240) is in communication with the water cooling space (230).

9. The water-cooled heat exchanger according to claim 1, characterized in that: The cooler (200) is of a horizontal cooler structure. A cooler chassis (110) is provided between the cooler (200) and the bottom wall of the box body (100). A connecting hoop (120) is arranged around the cooler (200), and the connecting hoop (120) is connected to the cooler chassis (110).

10. The water-cooled heat exchanger according to claim 9, characterized in that: The cooler chassis (110) is of a "C"-shaped structure. The cooler chassis (110) successively includes an upper connecting plate (111), a middle plate (112), and a lower connecting plate (113) from top to bottom. The upper connecting plate (111) supports the cooler (200), and the lower connecting plate (113) is connected to the box body (100).

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