Water tank heat dissipation device

Abstract

The utility model discloses a water tank heat dissipation device which is used for a sanitation vehicle and comprises a water tank, a heat dissipation block, an inlet connector and an outlet connector. Wherein a heat dissipation block is arranged at the bottom of the water tank, a cooling liquid flow channel allowing a cooling medium to circulate is formed in the heat dissipation block, and an inlet connector and an outlet connector which are communicated with the cooling liquid flow channel are arranged on the water tank. According to the water tank heat dissipation device, cooling liquid with high temperature flows into the heat dissipation block from the inlet connector, heat exchange is conducted between the temperature of the cooling liquid and the temperature of water in the water tank while the cooling liquid passes through the cooling liquid flow channel in the heat dissipation block, and therefore the purpose of conducting heat absorption cooling on the cooling liquid is achieved, and compared with heat dissipation through a forced air cooling exchange device, the heat dissipation efficiency is improved. Noise can be reduced, the heat dissipation capacity is improved, and meanwhile vehicle miniaturization is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and in particular to a water tank cooling device for sanitation vehicles. Background Technology

[0002] For new energy sanitation vehicles, the motor controller, on-board charger, and DC / DC converter in their three-electric system generate a significant amount of heat during operation. Currently, a common approach is to use a liquid cooling system to absorb this heat. These components are connected in series via water pipes, and a booster pump drives the liquid cooling medium to circulate within them, forming a circulating water circuit. Therefore, effectively cooling the liquid cooling medium in the circulating water circuit is crucial.

[0003] Currently, a common method for cooling liquid cooling media involves adding a forced air cooling exchange device in the middle of the circulating water circuit to ensure that the heat of the liquid cooling media can be dissipated. However, because the liquid cooling media dissipates a large amount of heat, the required forced air cooling exchange device is not only bulky but also requires high fan speeds, leading to excessive energy consumption and noise. Furthermore, since the forced air cooling exchange device relies on air convection for heat dissipation, its heat dissipation performance will drop sharply in high-temperature environments or under long-term continuous operation due to the increase in the air temperature, making it unable to quickly and effectively dissipate heat and thus affecting the overall heat dissipation efficiency. Utility Model Content

[0004] The main objective of this invention is to provide a water tank heat dissipation device that aims to solve at least one of the technical problems of unstable heat dissipation efficiency, high energy consumption, and high noise when using a forced air cooling exchange device.

[0005] To achieve the above objectives, this utility model provides a water tank heat dissipation device for sanitation vehicles, comprising: a water tank, a heat dissipation block, an inlet connector, and an outlet connector; wherein, the bottom of the water tank is provided with a heat dissipation block, the interior of the heat dissipation block is provided with a coolant flow channel, and the water tank is provided with the inlet connector and the outlet connector respectively communicating with the coolant flow channel.

[0006] Preferably, the heat sink includes a body, a coolant channel disposed on the body, a coolant inlet at one end of the coolant channel, a coolant inlet at the other end of the coolant channel, and the coolant channel is arranged in an S-shape.

[0007] Preferably, the inlet connector is connected to a first pipeline, and a water pump is installed on the first pipeline.

[0008] Preferably, the outlet connector is connected to a second pipeline, and a temperature sensor is installed on the second pipeline.

[0009] Preferably, the water tank heat dissipation device further includes a water level sensor, one end of which is disposed inside the water tank and the other end of which is disposed outside the water tank.

[0010] Preferably, the water tank heat dissipation device further includes an auxiliary radiator, which is connected to the outlet connector. The auxiliary radiator includes a heat dissipation box and heat dissipation fins. The heat dissipation box is provided with heat dissipation channels, and the heat dissipation fins are disposed on the heat dissipation box.

[0011] Preferably, the heat sink and heat sink fins are metal parts.

[0012] Preferably, the auxiliary radiator further includes a cooling fan, which is disposed opposite to the heat dissipation fins and is configured to drive air to flow toward the heat dissipation fins.

[0013] Preferably, the water tank is provided with a water inlet on the top.

[0014] Preferably, the water tank cooling device further includes an automatic control module, which is connected to the temperature sensor, the water level sensor and the cooling fan respectively.

[0015] In this utility model, the water tank cooling device allows the high-temperature coolant to flow into the cooling block from the inlet connector. As the coolant flows through the coolant channels in the cooling block, it exchanges heat with the water temperature in the water tank, thereby achieving the purpose of absorbing heat and cooling the coolant. Compared with the use of forced air cooling exchange devices, it can reduce noise, improve heat dissipation capacity, and is also conducive to vehicle miniaturization. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the water tank heat dissipation device in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the heat dissipation block of the water tank heat dissipation device in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the water tank heat dissipation device in another embodiment of the present invention;

[0020] Figure 4This is a schematic diagram of the water tank heat dissipation device in another embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the auxiliary radiator of the water tank heat dissipation device in one embodiment of the present invention.

[0022] The serial numbers in the diagram are explained as follows:

[0023] 1. Water tank; 2. Heat sink; 21. Main body; 22. Coolant flow channel; 221. Heat sink sub-flow channel; 222. Bent sub-flow channel; 23. Coolant inlet; 24. Coolant outlet; 3. Inlet connector; 4. Outlet connector; 5. Temperature sensor; 6. Water level sensor; 7. Heat sink box; 8. Heat sink fins; 9. Cooling fan; 10. Water pump. Detailed Implementation

[0024] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0025] This utility model provides a water tank cooling device for use in new energy sanitation vehicles, see reference. Figure 1 and Figure 2 In one embodiment, the water tank heat dissipation device includes: a water tank 1, a heat dissipation block 2, an inlet connector 3, and an outlet connector 4; wherein, the bottom of the water tank 1 is provided with a heat dissipation block 2, the interior of the heat dissipation block 2 is provided with a coolant flow channel 22, and the water tank 1 is provided with the inlet connector 3 and the outlet connector 4, which are respectively connected to the coolant flow channel 22.

[0026] More specifically, in this embodiment, the water tank cooling device uses a large-capacity water tank (1) found on sanitation vehicles. The water tank (1) is equipped with pipe connectors for the liquid cooling device, namely an inlet connector (3) and an outlet connector (4). This liquid cooling device is used to cool the motor, battery, and other equipment on the sanitation vehicle.

[0027] The heat sink 2 can be made of aluminum or stainless steel. The heat sink 2 is installed at the bottom of the water tank 1 and can be in direct contact with the cleaning water in the water tank 1. The heat sink 2 has a coolant flow channel 22 for coolant circulation. The coolant flow channel 22 has a coolant inlet 23 connected to the inlet connector 3 and a coolant outlet 24 connected to the outlet connector 4.

[0028] It should be noted that in this embodiment, the inlet connector 3 and outlet connector 4 of the water tank cooling device can be located on the same side of the water tank 1, and the inlet connector 3 is arranged higher than the outlet connector 4. See the attached reference for details. Figure 1 The inlet connector 3 and the outlet connector 4 can also be located on different sides of the water tank 1.

[0029] In summary, in this embodiment of the water tank cooling device, the coolant with a higher temperature flows into the heat exchange block 2 from the inlet connector 3. While passing through the coolant flow channel 22 in the heat exchange block 2, the temperature of the coolant exchanges heat with the water temperature in the water tank 1, thereby achieving the purpose of absorbing heat and cooling the coolant. Compared with the use of a forced air cooling exchange device, it can reduce noise, improve heat dissipation capacity, and is also conducive to vehicle miniaturization.

[0030] In a preferred embodiment, reference Figure 2 The heat sink 2 includes a body 21 and a coolant channel 22 disposed within the body 21. One end of the coolant channel 22 is provided with a coolant inlet 23, and the other end of the coolant channel 22 is provided with a coolant outlet 24. The coolant channel 22 is arranged in an S-shape.

[0031] More specifically, the heat sink 2 includes a body 21, coolant channels 22, a coolant inlet 23, and a coolant outlet 24. The coolant channels 22 are arranged in an S-shape and include several sub-channels 221 and a bent sub-channel 222 connecting the sub-channels 221. At both ends of the coolant channels 22, a coolant inlet 23 and a coolant outlet 24 are formed on the end face of the body 21, respectively. The coolant inlet 23 corresponds to the inlet connector 3, and the coolant outlet 24 corresponds to the outlet connector 4. Optionally, the sub-channels 221 and the bent sub-channels 222 have the same depth.

[0032] It should be noted that when the inlet connector 3 and the outlet connector 4 are located on different sides of the water tank 1, the coolant flow channel 22 can be S-shaped.

[0033] Understandably, in this embodiment, the heat sink 2, by setting an S-shaped coolant flow channel 22, can extend the residence time of the coolant inside the heat sink 2, thereby improving the heat exchange efficiency between the heat sink 2 and the water tank 1.

[0034] In another embodiment, reference Figure 3 The inlet connector 3 is connected to the first pipeline, and a water pump 10 is installed on the first pipeline.

[0035] That is, the inlet connector 3 of the water tank 1 is connected to the drain port of the liquid cooling device through a first pipeline. A water pump 10 is installed on the first pipeline. The water pump 10 is powered by the power supply on the sanitation vehicle and is used to provide power for the circulation of the coolant. The water pump 10 can be a miniature electric hydraulic pump.

[0036] Understandably, the water tank cooling device of this embodiment, by setting up a water pump 10, can realize the circulation of coolant between the water tank cooling device and the liquid cooling device.

[0037] Furthermore, based on Figure 3 In the embodiment of the water tank heat dissipation device shown, the outlet connector 4 is connected to a second pipeline, and a temperature sensor 5 is installed on the second pipeline.

[0038] That is, the outlet connector 4 of the water tank 1 is connected to the liquid inlet of the liquid cooling device through a second pipeline. A temperature sensor 5 is installed on the second pipeline. The temperature sensor 5 is used to detect the temperature of the coolant cooled by the water tank 1. The temperature sensor 5 can be an NTC temperature sensor.

[0039] Understandably, the water tank cooling device in this embodiment can achieve real-time detection of coolant temperature by setting temperature sensor 5.

[0040] Further, refer to Figure 3 The water tank heat dissipation device also includes a water level sensor 6, one end of which is disposed inside the water tank 1 and the other end of which is disposed outside the water tank 1.

[0041] That is, a water level sensor 6 is installed on the water tank 1. This water level sensor 6 can be an insertion float level gauge, used to detect the water temperature of the water tank 1. The insertion float level gauge mainly includes a transmitter body, a guide rod, a float, a fastening retaining ring, and a meter circuit installed inside the transmitter body. The lower part of the transmitter body is connected to the guide rod through a flange or threaded connection. The float is fitted on the guide rod, and a fastening retaining ring is fixed at the bottom of the guide rod.

[0042] Understandably, the water tank heat dissipation device in this embodiment can realize the real-time detection function of the water level in the water tank 1 by setting the water level sensor 6.

[0043] In yet another embodiment, reference is made to Figure 4 and Figure 5 The water tank heat dissipation device also includes an auxiliary radiator, which is connected to the outlet connector 4 via a pipe. The auxiliary radiator includes a heat dissipation box 7 and heat dissipation fins 8. The heat dissipation box 7 is provided with heat dissipation channels, and the heat dissipation fins 8 are disposed on the heat dissipation box 7.

[0044] That is, the water tank cooling device in this embodiment includes a water tank 1, a heat dissipation block 2 disposed at the bottom of the water tank 1, and an auxiliary radiator disposed outside the water tank 1. The auxiliary radiator cools the coolant flowing out of the outlet connector 4, which can further reduce the temperature of the coolant and prevent the problem of not being able to cool the coolant in time in extreme cases. In this embodiment, the extreme case refers to the situation where the water in the water tank 1 is too low, and the vehicle needs to be driven to a water replenishment position. At this time, the water tank 1 with integrated heat dissipation block 2 cannot be used to cool the coolant in time, causing the vehicle's running gear to stop due to the activation of the over-temperature protection mechanism.

[0045] The auxiliary radiator includes a heat sink 7 and heat dissipation fins 8 disposed on the heat sink 7. The heat dissipation fins 8 are used to dissipate heat from the heat sink 7. The heat sink 7 is provided with heat dissipation channels for the flow of coolant. When the coolant flowing out from the outlet connector 4 enters the heat sink 7 and flows along the heat dissipation channels, the heat of the coolant is transferred to the heat sink 7, and the heat of the coolant is efficiently dissipated to the outside by the heat dissipation fins 8 on the heat sink 7, thereby achieving auxiliary heat dissipation of the coolant. When used in conjunction with the water tank 1 which integrates the heat sink block 2, the size of the heat sink 7 can be reduced.

[0046] Furthermore, the heat dissipation box 7 is provided with an inlet and an outlet that are respectively connected to the heat dissipation channel, and the inlet and outlet are located on different sides of the heat dissipation box 7.

[0047] Furthermore, there are multiple heat dissipation fins 8, and these multiple heat dissipation fins 8 are arranged in parallel. By arranging multiple heat dissipation fins 8 in parallel, the heat dissipation area of ​​the heat dissipation fins 8 can be increased, thereby improving the heat dissipation efficiency.

[0048] Furthermore, the heat sink 7 and the heat sink fins 8 can be a single integrated structure. This integrated structure improves the overall structural stability of the auxiliary heat sink and facilitates installation.

[0049] Furthermore, the heat sink 7 and the heat sink fins 8 are metal parts.

[0050] In this embodiment, both the heat sink 7 and the heat sink fins 8 are made of metal. Metal has excellent thermal conductivity, which facilitates rapid cooling of the coolant. Furthermore, using metal components makes it easier to process and shape the heat sink 7 and heat sink fins 8 as needed. The metal components can be made of aluminum or stainless steel.

[0051] Furthermore, the auxiliary radiator also includes a cooling fan 9, which is disposed opposite to the heat dissipation fins 8 and is configured to drive air to flow toward the heat dissipation fins 8.

[0052] In this embodiment, the auxiliary radiator includes a heat sink 7, heat sink fins 8, and a cooling fan 9. The cooling fan 9 can be positioned upstream of the heat sink fins 8 to blow air onto them. By using the cooling fan 9, heat convection between the heat sink fins 8 and the air can be promoted, further improving the cooling efficiency of the coolant. Simultaneously, this auxiliary radiator, used in conjunction with a water tank 1 integrating heat sink blocks 2, can reduce the size of the heat sink 7 and the size and power of the cooling fan 9. Compared to using a forced air cooling exchange device, it can reduce the energy consumption and airflow speed of the cooling fan 9, as well as reduce wind noise.

[0053] Understandably, in this embodiment of the water tank heat dissipation device, the coolant at a higher temperature first exchanges heat through the water tank 1 with integrated heat dissipation blocks 2, and then flows into the auxiliary radiator. At this time, a large amount of heat of the coolant is dispersed through the water tank 1 with integrated heat dissipation blocks 2. The auxiliary radiator is a safeguard set up to prevent extreme situations. Under normal circumstances, it does not need to start the cooling fan 9 to ensure that the coolant is cooled down in time and achieves silent operation throughout the process.

[0054] As a preferred embodiment, based on the heat dissipation device of any of the above embodiments, the top of the water tank 1 is provided with a water inlet.

[0055] In this embodiment, a water inlet is provided on the top of the water tank 1, and a closable sealing cap is provided on the water inlet. At this time, when the water tank 1 needs to be replenished with water, the sealing cap is opened, and water is injected into the water tank 1 through the water inlet on the top of the water tank 1 using a water inlet pipe until the actual water level of the water tank 1 is detected by the water level sensor 6 to reach the preset water level value, confirming that the water tank 1 has been replenished with water, and then the sealing cap is closed.

[0056] Understandably, the heat dissipation device of this embodiment can replenish water to the water tank 1 in a timely manner by setting a water level sensor 6 and a water inlet.

[0057] As a preferred embodiment, based on Figure 4 The water tank cooling device embodiment shown includes an automatic control module, which is connected to the temperature sensor 5, the water level sensor 6, and the cooling fan 9.

[0058] In this embodiment, the automatic control module is electrically connected to the temperature sensor 5, the water level sensor 6, and the cooling fan 9, and is used to control the cooling fan 9 based on the data detected by the temperature sensor 5 and the water level sensor 6. Furthermore, the automatic control module can also be electrically connected to the water pump 10 to control the start and stop of the water pump 10. The automatic control module can be a vehicle-mounted electronic control unit or an independent microcontroller control system.

[0059] Temperature sensor 5 is electrically connected to the automatic control module and is used to detect the temperature of the coolant after the water tank 1 absorbs heat (i.e., the temperature of the coolant flowing out from the outlet connector 4) and transmit the coolant temperature data to the automatic control module.

[0060] The water level sensor 6 is electrically connected to the automatic control module and is used to detect the water level in the water tank 1 and transmit the water level data to the automatic control module.

[0061] The automatic control module controls the operation of the cooling fan 9 based on the coolant temperature and water level data.

[0062] As a preferred embodiment, the operation of the cooling fan 9 is controlled as follows:

[0063] Step a: Detect whether the coolant temperature of temperature sensor 5 is higher than (greater than or equal to) a preset first temperature value; wherein, the preset first temperature value is 55℃.

[0064] If step b is correct, then the cooling fan 9 will be forcibly started. At this time, the water level does not need to be considered.

[0065] Step c, if not, then detect whether the coolant temperature of temperature sensor 5 is lower than (less than) a preset first temperature value and higher than a preset second temperature value, and whether the water level of water level sensor 6 is lower than a preset water level value; wherein, the second preset temperature value is 45℃ and the preset water level value is 5cm.

[0066] If step d is true, then start cooling fan 9; otherwise, do not start cooling fan 9.

[0067] That is, the coolant flowing out of the liquid cooling device flows into the heat sink 2 through the inlet connector 3, and exchanges heat with the water in the water tank 1 through the heat sink 2. Then, the temperature of the coolant flowing out of the outlet connector 4 is detected by the temperature sensor 5, and the water level in the water tank 1 is detected by the water level sensor 6. Based on the water level, it is determined whether the water tank 1 has enough water for heat dissipation. If the water level is higher than 5cm, the cooling fan 9 does not need to be started. If the water level is lower than 5cm, the cooling fan 9 of the auxiliary radiator is started based on the coolant temperature. If the coolant temperature is lower than 45℃, the cooling fan 9 is not started. If the coolant temperature is between 45℃ and 55℃, the cooling fan 9 is started. If the coolant temperature is higher than 55℃, the cooling fan 9 is forcibly started.

[0068] It should be noted that in other embodiments, the operation of the cooling fan 9 can be controlled manually.

[0069] Understandably, the water tank cooling device in this embodiment can achieve automatic control of the cooling fan 9 by setting an automatic control module.

[0070] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water tank heat dissipation device, characterized in that, For use in sanitation vehicles, including: water tank (1), heat dissipation block (2), inlet connector (3) and outlet connector (4); wherein, the bottom of the water tank (1) is provided with heat dissipation block (2), the interior of the heat dissipation block (2) is provided with coolant flow channel (22), and the water tank (1) is provided with the inlet connector (3) and the outlet connector (4) respectively communicating with the coolant flow channel (22).

2. The water tank heat dissipation device as described in claim 1, characterized in that, The heat sink (2) includes a body (21) and a coolant channel (22) disposed on the body (21). One end of the coolant channel (22) is provided with a coolant inlet (23), and the other end of the coolant channel (22) is provided with a coolant outlet (24). The coolant channel (22) is arranged in an S-shape.

3. The water tank heat dissipation device as described in claim 1, characterized in that, The inlet connector (3) is connected to the first pipeline, on which a water pump (10) is installed.

4. The water tank heat dissipation device as described in claim 1, characterized in that, The outlet connector (4) is connected to the second pipeline, on which a temperature sensor (5) is installed.

5. The water tank cooling device as described in claim 4, characterized in that, The water tank heat dissipation device also includes a water level sensor (6), one end of which is located inside the water tank (1), and the other end of which is located outside the water tank (1).

6. The water tank cooling device as described in claim 5, characterized in that, The water tank heat dissipation device also includes an auxiliary radiator, which is connected to the outlet connector (4) through a pipe. The auxiliary radiator includes a heat dissipation box (7) and heat dissipation fins (8). The heat dissipation box (7) is provided with a heat dissipation channel, and the heat dissipation fins (8) are disposed on the heat dissipation box (7).

7. The water tank cooling device as described in claim 6, characterized in that, The heat sink (7) and heat sink fins (8) are metal parts.

8. The water tank cooling device as described in claim 6, characterized in that, The auxiliary radiator also includes a cooling fan (9), which is disposed opposite to the heat dissipation fins (8) and is configured to drive air to flow toward the heat dissipation fins (8).

9. The water tank heat dissipation device as described in claim 1, characterized in that, The water tank (1) is provided with a water inlet on the top.

10. The water tank heat dissipation device as described in claim 8, characterized in that, The water tank cooling device also includes an automatic control module, which is connected to the temperature sensor (5), the water level sensor (6), and the cooling fan (9).

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