A metering pump with heat dissipation function

Abstract

This utility model discloses a metering pump with heat dissipation function, including a pump body and a motor for driving the pump body to work; a first heat dissipation head, which is fixedly mounted on the motor. The first heat dissipation head is hollow, and one end of the first heat dissipation head has a heat sink. One end of the heat sink is attached to the side wall of the motor, and the other end of the heat sink is located in the hollow part of the heat dissipation head. The first heat dissipation head has a first water inlet and a first water outlet. The first water inlet is used to introduce clean water. The pump body also has a liquid inlet. The first water outlet and the liquid inlet are connected by a pipe. There is no need to configure a separate heat dissipation medium storage device and a cooling circulation system. The clean water required for the operation of the metering pump is used to dissipate heat from the motor, which simplifies the equipment structure, realizes the recycling of resources, and reduces the energy consumption and cost of equipment operation.

Description

Technical Field

[0001] This utility model belongs to the field of metering pump technology, and in particular relates to a metering pump with heat dissipation function. Background Technology

[0002] When industrial large washing machines are in operation, clean water is transported through pipelines, and the flow rate is measured by a metering pump to ensure accurate usage.

[0003] The power drive unit of existing metering pumps typically uses a motor to drive a gear to rotate, which in turn drives an eccentric wheel to rotate. The eccentric wheel, in conjunction with a connecting rod, converts the rotational motion of the motor drive shaft into the linear motion of the plunger inside the pump body, thereby realizing the metering of fluid intake and discharge.

[0004] However, motors generate heat during operation and need to be cooled down; otherwise, the motor's lifespan may be shortened, and the motion accuracy of the metering pump's transmission system may be deviated, resulting in increased fluid metering errors. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a metering pump with heat dissipation function, comprising a pump body, characterized in that it further comprises: The electric motor is used to drive the pump body. The first heat dissipation head is fixedly mounted on the motor. The first heat dissipation head is hollow and has a heat sink at one end. One end of the heat sink is attached to the side wall of the motor, and the other end of the heat sink is located inside the hollow part of the heat dissipation head. The first heat dissipation head has a first water inlet and a first water outlet. The first water inlet is used to introduce clean water. The pump body also has a liquid inlet. The first water outlet and the liquid inlet are connected by a pipe.

[0006] Furthermore, it also includes: The second heat dissipation head is fixedly installed on the other side of the motor. The second heat dissipation head has the same structure as the first heat dissipation head, and the heat dissipation fins of the second heat dissipation head are attached to the other side wall of the motor. The second heat dissipation head has a second water inlet and a second water outlet. The first water outlet and the second water inlet are connected by a pipe, and the second water outlet and the liquid inlet are connected by a pipe.

[0007] Furthermore, it also includes: The heat dissipation radiator has a third water inlet and a third water outlet at its left and right ends, respectively. The heat dissipation radiator is hollow, and the third water inlet and the third water outlet are connected to the hollow part of the heat dissipation radiator. The first water outlet and the third water inlet are connected by a pipe, and the third water outlet and the second water inlet are connected by a pipe.

[0008] Furthermore, it also includes: The fan is fixedly mounted on the top of the heat sink.

[0009] Furthermore, it also includes: Fins: Several fins are fixedly arranged inside the hollow of the heat dissipation radiator, and the several fins form a serpentine water channel in the hollow of the heat dissipation radiator.

[0010] Furthermore, it also includes: The motor, radiator, and pump body are all fixedly mounted on the fixed frame.

[0011] Furthermore, both the first and second cooling heads are detachably mounted to the heat sink.

[0012] Furthermore, the heat dissipation radiator is divided into a box body and a cover body. The box body has an opening at the top, and the cover body is used to seal the top of the box body. The fins are located inside the box body, and the box body and the cover body are detachably connected.

[0013] The beneficial effects of this utility model are as follows: 1. No separate heat dissipation medium storage device and cooling circulation system are required. The motor is cooled by using the clean water required for the metering pump to operate, which simplifies the equipment structure, realizes the recycling of resources, and reduces the energy consumption and cost of equipment operation.

[0014] 2. It achieves synchronous double-sided heat dissipation on both sides of the motor. Compared with single-sided heat dissipation, the heat dissipation area is doubled and the heat absorption efficiency is significantly improved. It can effectively avoid the problem of local overheating of the motor and further ensure the stability and service life of the motor.

[0015] 3. This avoids the problem that the temperature of the water rises after absorbing heat from the first cooling head, which would reduce its heat dissipation capacity in the second cooling head; the cooling radiator setting enables intermediate cooling of the water, ensuring that the water entering the second cooling head always maintains a low temperature, thus ensuring the effectiveness of heat dissipation on both sides.

[0016] 4. It overcomes the shortcomings of low natural heat dissipation efficiency. Especially in high-temperature environments or high-load motor operation scenarios, the fan can significantly enhance the heat dissipation capacity of the radiator, ensure the cooling effect of water, and thus ensure the stable operation of the entire heat dissipation system.

[0017] 5. The serpentine water channel extends the flow path and residence time of the water within the radiator, allowing for more thorough heat exchange between the water and the fins; the fins increase the contact area between the water and the radiator, improving heat transfer efficiency and further enhancing the cooling effect of the radiator.

[0018] 6. When the heat sink's thermal conductivity decreases due to surface oxidation or wear after long-term use, the heat sink can be removed and replaced individually without replacing the entire cooling block, reducing maintenance costs. At the same time, it is convenient to clean the connection between the heat sink and the cooling block, ensuring heat dissipation performance.

[0019] 7. When the fins inside the heat sink become clogged or damaged due to dirt buildup, the cover can be removed to clean the fins. At the same time, the sealing strip ensures the airtightness of the box and cover after connection, preventing water from leaking from the opening of the heat sink. Attached Figure Description

[0020] Appendix Figure 1 This is a structural diagram of the present invention; Appendix Figure 2 This is a top view of the present invention after the pipes have been removed; Appendix Figure 3 A side view of the present invention after adding the fan; Appendix Figure 4 This is a diagram illustrating the disassembly of a heatsink radiator; Appendix Figure 5 This is a structural diagram of the second heat dissipation head; Appendix Figure 6 This is a flowchart of the heat dissipation process; Explanation of reference numerals in the attached drawings: 1. Pump body, 2. Motor, 3. First cooling head, 4. Heat sink, 5. First water inlet, 6. First water outlet, 7. Liquid inlet, 8. Second cooling head, 9. Second water inlet, 10. Second water outlet, 11. Cooling radiator, 12. Third water inlet, 13. Third water outlet, 14. Fan, 15. Fins, 16. Mounting bracket, 17. Housing, 18. Cover. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In the description of this application, it should be noted that the terminology used herein is only for describing specific implementations and is not intended to limit the exemplary implementations according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Example 1

[0022] This embodiment provides a metering pump with heat dissipation function, including a pump body 1, characterized in that it further includes: Motor 2 is used to drive pump body 1 to work; The first heat dissipation head 3 is fixedly mounted on the motor 2. The first heat dissipation head 3 is hollow. One end of the first heat dissipation head 3 also has a heat sink 4. One end of the heat sink 4 is attached to the side wall of the motor 2, and the other end of the heat sink 4 is located inside the hollow of the heat dissipation head. The first cooling head 3 has a first water inlet 5 and a first water outlet 6. The first water inlet 5 is used to introduce clean water. The pump body 1 also has a liquid inlet 7. The first water outlet 6 and the liquid inlet 7 are connected by a pipe.

[0023] In this technical solution, when the industrial large washing machine is working, clean water is transported in the pipeline. The first water inlet 5 is used to connect to the clean water pipeline, so that clean water is introduced into the first heat dissipation head 3 by the power provided by the external water pump or metering pump body 1.

[0024] The heat generated by the motor 2 during operation is quickly conducted to the hollow cavity of the first heat dissipation head 3 through the heat sink 4 that is attached to its side wall. After the external clean water enters the hollow cavity through the first water inlet 5, it comes into direct contact with the heat sink 4 and absorbs the heat, thereby cooling the motor 2. Meanwhile, the clean water after absorbing heat does not need to be discharged separately. It can be directly transported to the inlet port 7 of the pump body 1 through the first water outlet 6 and the pipeline, providing raw materials for the fluid metering of the pump body 1.

[0025] This structural design eliminates the need for a separate heat dissipation medium storage device and cooling circulation system. The clean water required for the metering pump to operate is used to dissipate heat from the motor 2, which simplifies the equipment structure, realizes the recycling of resources, and reduces the energy consumption and cost of equipment operation. Example 2

[0026] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0027] Furthermore, it also includes: The second heat dissipation head 8 is fixedly installed on the other side of the motor 2. The second heat dissipation head 8 has the same structure as the first heat dissipation head 3. The heat dissipation fins 4 of the second heat dissipation head 8 are attached to the other side wall of the motor 2. The second heat dissipation head 8 has a second water inlet hole 9 and a second water outlet hole 10. The first water outlet hole 6 and the second water inlet hole 9 are connected by a pipe, and the second water outlet hole 10 is connected to the liquid inlet hole 7 by a pipe.

[0028] In this technical solution, the second heat dissipation head 8 and the first heat dissipation head 3 are symmetrically assembled on both sides of the motor 2, and form a series water circuit through pipes. After the water absorbs heat from one side of the motor 2 through the first cooling head 3, it continues to flow into the hollow cavity of the second cooling head 8, where it comes into contact with the heat sink 4 that is attached to the other side wall of the motor 2, further absorbing heat from the other side of the motor 2, and then is delivered to the liquid inlet 7 of the pump body 1.

[0029] The side of the heat sink 4 facing the hollow part of the cold head can have multiple heat dissipation fins, increasing the contact area with water and improving heat exchange efficiency.

[0030] This structural design enables simultaneous double-sided heat dissipation on both sides of the motor 2. Compared with single-sided heat dissipation, the heat dissipation area is doubled, and the heat absorption efficiency is significantly improved. This can effectively avoid the problem of local overheating of the motor 2 and further ensure the working stability and service life of the motor 2. Example 3

[0031] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] Furthermore, it also includes: The heat dissipation radiator 11 has a third water inlet hole 12 and a third water outlet hole 13 at its left and right ends, respectively. The heat dissipation radiator 11 is hollow, and the third water inlet hole 12 and the third water outlet hole 13 are connected to the hollow part of the heat dissipation radiator 11. The first water outlet 6 and the third water inlet 12 are connected by a pipe, and the third water outlet 13 and the second water inlet 9 are connected by a pipe.

[0033] In this technical solution, the heat dissipation radiator 11 is connected in series between the first heat dissipation head 3 and the second heat dissipation head 8. After the water absorbs heat through the first heat dissipation head 3, it first flows into the hollow cavity of the heat dissipation radiator 11 through the pipe. Under the action of the heat dissipation radiator 11, it exchanges heat with the outside air and reduces the temperature of the water itself. Then, the cooled water flows into the second cooling head 8 through the pipe to efficiently dissipate heat on the other side of the motor 2, preventing the water in the first cooling head 3 from flowing into the second cooling head 8 immediately after heat exchange.

[0034] This structural design avoids the problem that the temperature of the water rises after absorbing heat from the first cooling head 3, which would reduce its heat dissipation capacity in the second cooling head 8. The cooling radiator 11 enables intermediate cooling of the water, ensuring that the water entering the second cooling head 8 always maintains a low temperature, thus guaranteeing the effectiveness of heat dissipation on both sides. Example 4

[0035] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] Furthermore, it also includes: Fan 14 is fixedly mounted on the upper end of heat dissipation radiator 11.

[0037] In this technical solution, the fan 14 is fixed to the upper end of the heat sink 11 by bolts or clips. When the fan 14 is working, it generates an upward airflow, which causes the hot airflow at the intake end to flow quickly across the outer surface of the heat sink 11 and be discharged through the fan 14. Furthermore, due to the negative pressure at the intake end of the fan 14, it draws in the cold air from the outside, which cools the outer surface of the heat sink 11, accelerates the heat exchange rate between the heat sink 11 and the outside air, shortens the cooling time of the water in the heat sink 11, and improves the cooling efficiency of the water.

[0038] This structural design compensates for the low efficiency of natural heat dissipation. Especially in high-temperature environments or high-load operation scenarios of motor 2, fan 14 can significantly enhance the heat dissipation capacity of radiator 11, ensuring the cooling effect of water and thus ensuring the stable operation of the entire heat dissipation system. Example 5

[0039] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Furthermore, it also includes: Fins 15: Several fins 15 are fixedly arranged inside the hollow space of the heat dissipation radiator 11, and the several fins 15 form a serpentine water channel in the hollow space of the heat dissipation radiator 11.

[0041] In this technical solution, the fins 15 are made of metals with excellent thermal conductivity, such as copper or aluminum, and are arranged at intervals along the length of the cavity in the heat dissipation radiator 11. The adjacent fins 15 form a curved channel, which together constitutes a serpentine waterway, making the distance required for water to flow through the radiator longer and improving the cooling effect.

[0042] After the water enters the radiator 11, it needs to flow through the gaps between the fins 15 in sequence along the serpentine water channel. During the process, it makes full contact with the fins 15, and the heat is quickly conducted to the outer surface of the radiator 11 through the fins 15.

[0043] Through this structural design, the serpentine water channel extends the flow path and residence time of the water in the heat dissipation radiator 11, making the heat exchange between the water and the fins 15 more complete; the fins 15 increase the contact area between the water and the heat dissipation radiator 11, improve the heat conduction efficiency, and further enhance the cooling effect of the heat dissipation radiator 11. Example 6

[0044] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Furthermore, it also includes: The motor 2, the heat dissipation radiator 11, and the pump body 1 are all fixedly mounted on the fixed frame 16.

[0046] In this technical solution, the mounting bracket 16 has pre-set mounting holes that match the motor 2, the radiator 11, and the pump body 1; the motor 2, the radiator 11, and the pump body 1 are fixed to the corresponding positions of the mounting bracket 16 by bolts, the relative positions of each component remain fixed, and there is no stress deformation at the pipe connection parts, making the operation more stable.

[0047] This structural design prevents relative displacement of the motor 2, heat dissipation radiator 11, and pump body 1 due to vibration during operation of the metering pump, and enables the fixing frame 16 to support each component, thereby improving operational stability. Example 7

[0048] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] Furthermore, both the first heat dissipation head 3 and the second heat dissipation head 8 are detachably mounted to the heat sink 4.

[0050] In this technical solution, the ends of the first heat dissipation head 3 and the second heat dissipation head 8 are provided with slots or threaded holes, and one end of the heat sink 4 is provided with a locking block that matches the slot or a through hole that matches the threaded hole. The through hole is used to pass through the screw. The heat sink 4 is fixed to the heat dissipation head by snap-fit ​​or bolt connection. When disassembling, the heat sink 4 can be removed by simply separating the snap-fit ​​structure or unscrewing the bolt.

[0051] Meanwhile, the heat sink and heatsink 4 are sealed with a gasket to prevent water leakage.

[0052] With this structural design, when the heat sink 4 experiences surface oxidation, dust accumulation, or wear due to long-term use, resulting in a decrease in thermal conductivity, the heat sink 4 can be disassembled and replaced separately without replacing the entire cooling head, thus reducing maintenance costs. At the same time, it facilitates cleaning of the connection between the heat sink 4 and the cooling head, ensuring heat dissipation performance. Example 8

[0053] This embodiment provides a metering pump with heat dissipation function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] Furthermore, the heat dissipation radiator 11 is divided into a box body 17 and a cover body 18. The box body 17 has an opening at the top, and the cover body 18 is used to seal the top of the box body 17. The fins 15 are located inside the box body 17, and the box body 17 and the cover body 18 are detachably connected.

[0055] In this technical solution, the upper edge of the box body 17 is provided with a sealing groove, and the lower end of the cover body 18 is provided with a sealing strip that matches the sealing groove. The box body 17 and the cover body 18 are connected by bolts or buckles. After removing the cover body 18, the state of the fins 15 inside the box body 17 can be directly observed. The fins 15 are fixed to the bottom of the box body 17 by welding or buckles, forming an integral structure with the box body 17.

[0056] Since the cooling medium is water, scale inevitably forms after prolonged use. The detachable design of the heat sink and radiator 11 can help clean the scale.

[0057] With this structural design, when the fins 15 inside the heat dissipation radiator 11 become clogged or damaged by dirt, the cover 18 can be removed to clean the fins 15. At the same time, the sealing strip ensures the airtightness of the box 17 and the cover 18 after they are connected, preventing water from leaking from the opening of the heat dissipation radiator 11.

[0058] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application specification can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A metering pump with heat dissipation function, comprising a pump body (1), characterized in that, Also includes: The motor (2) is used to drive the pump body (1) to work; The first heat dissipation head (3) is fixedly mounted on the motor (2). The first heat dissipation head (3) is hollow. One end of the first heat dissipation head (3) also has a heat sink (4). One end of the heat sink (4) is attached to the side wall of the motor (2), and the other end of the heat sink (4) is located inside the hollow of the heat dissipation head. The first heat dissipation head (3) has a first water inlet (5) and a first water outlet (6). The first water inlet (5) is used to introduce clean water. The pump body (1) also has a liquid inlet (7). The first water outlet (6) and the liquid inlet (7) are connected by a pipe.

2. A metering pump with heat dissipation function according to claim 1, characterized in that, Also includes: The second heat dissipation head (8) is fixedly installed on the other side of the motor (2). The second heat dissipation head (8) has the same structure as the first heat dissipation head (3). The heat dissipation fins (4) of the second heat dissipation head (8) are attached to the other side wall of the motor (2). The second heat dissipation head (8) has a second water inlet (9) and a second water outlet (10). The first water outlet (6) and the second water inlet (9) are connected by a pipe, and the second water outlet (10) and the liquid inlet (7) are connected by a pipe.

3. A metering pump with heat dissipation function according to claim 2, characterized in that, Also includes: The heat dissipation radiator (11) has a third water inlet (12) and a third water outlet (13) at its left and right ends respectively. The heat dissipation radiator (11) is hollow, and the third water inlet (12) and the third water outlet (13) are connected to the hollow part of the heat dissipation radiator (11). The first water outlet (6) and the third water inlet (12) are connected by a pipe, and the third water outlet (13) and the second water inlet (9) are connected by a pipe.

4. A metering pump with heat dissipation function according to claim 3, characterized in that, Also includes: The fan (14) is fixedly mounted on the upper end of the heat dissipation radiator (11).

5. A metering pump with heat dissipation function according to claim 4, characterized in that, Also includes: Fins (15): Several fins (15) are fixedly arranged in the hollow of the heat dissipation radiator (11), and the several fins (15) form a serpentine water channel in the hollow of the heat dissipation radiator (11).

6. A metering pump with heat dissipation function according to claim 5, characterized in that, Also includes: The motor (2), the heat dissipation radiator (11) and the pump body (1) are all fixedly mounted on the fixed frame (16).

7. A metering pump with heat dissipation function according to claim 6, characterized in that: Both the first heat dissipation head (3) and the second heat dissipation head (8) are detachably mounted from the heat sink (4).

8. A metering pump with heat dissipation function according to claim 7, characterized in that: The heat dissipation radiator (11) is divided into a box body (17) and a cover body (18). The box body (17) has an opening at the top, and the cover body (18) is used to seal the top of the box body (17). The fins (15) are located inside the box body (17), and the box body (17) and the cover body (18) are detachably connected.

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