Bus stop board temperature control system and bus stop board
By adopting a temperature control system on the bus stop sign and using liquid medium and circuit structure to dissipate or heat the electrical control box, the problems of existing bus stop signs in terms of heat dissipation and insulation are solved, and more efficient heat dissipation and insulation effects are achieved.
Patent Information
- Application Number
- CN202420470958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-11
AI Technical Summary
During the heat dissipation process, existing bus stop signs have irregular structures and non-flatness, which leads to wind power affecting the heat dissipation effect. In addition, air-cooled heat dissipation requires opening of heat dissipation holes to increase waterproofing costs, and it is difficult to keep insulated in low-temperature environments.
The bus stop temperature control system is adopted to dissipate or heat the electrical control box through the liquid medium in the first heat exchanger, and a circuit is formed using the circulation pump, heat dissipation pipeline and heating pipeline to avoid opening too many heat dissipation holes, reduce production costs, and provide better insulation effect in low-temperature environments.
It effectively avoids the opening of multiple heat dissipation holes, reduces waterproofing costs, and provides better insulation effect in low-temperature environments to ensure the normal operation of the electronic control components.
Smart Images
Figure CN222655587U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bus stop signs, and specifically relates to a bus stop sign temperature control system and a bus stop sign. Background Art
[0002] Most of the existing bus stops use air cooling for heat dissipation. However, due to the irregularity and non-flatness of the stop structure and electronic control components, the wind force and circulation inside the stop will be affected to a certain extent, resulting in limited cooling air received by some electronic control components, and the heat dissipation effect cannot be guaranteed.
[0003] On the other hand, when air cooling is used, several heat dissipation holes need to be opened on the bus stop shell, which will increase the waterproof cost of the bus stop. In addition, how to insulate the inside of the bus stop when the ambient temperature is low while ensuring the heat dissipation effect is also an urgent problem that needs to be solved.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] One purpose of the utility model is to overcome the deficiencies of the prior art and provide a bus stop temperature control system, which dissipates heat or heats the electric control box of the bus stop through the liquid medium in the first heat exchanger to ensure the normal operation of the electric control components in the electric control box, while also avoiding the need to open too many heat dissipation holes and reducing production costs.
[0006] Another object of the utility model is to provide a bus stop sign adopting the above-mentioned bus stop sign temperature control system.
[0007] In order to achieve the first utility model purpose, the utility model adopts the following technical solutions:
[0008] A bus stop temperature control system comprises a first heat exchanger, a circulation pump, a heat dissipation pipeline and a heating pipeline;
[0009] The first heat exchanger exchanges heat with the electronic control box of the bus stop sign through a liquid medium, and its output end is connected to the input end of a circulation pump. The circulation pump includes a first output end and a second output end. The first output end and the second output end are respectively connected to a heat dissipation pipeline and a heating pipeline arranged in parallel. The output sides of the heat dissipation pipeline and the heating pipeline are both connected to the input end of the first heat exchanger.
[0010] Furthermore, the first heat exchanger is a coil heat exchanger.
[0011] Furthermore, a first switching valve and a second heat exchanger are arranged in series on the heat dissipation pipeline, and an output end of the second heat exchanger is connected to an input end of the first heat exchanger.
[0012] Furthermore, a second switching valve is also provided on the heat dissipation pipeline, and the first switching valve and the second switching valve are respectively provided on both sides of the second heat exchanger.
[0013] Furthermore, it also includes a cooling fan, and the second heat exchanger is arranged on the air outlet side of the cooling fan.
[0014] Furthermore, a third switching valve and a heating unit are arranged in series on the heating pipeline, and an output end of the heating unit is connected to an input end of the first heat exchanger.
[0015] Furthermore, a fourth switching valve is also provided on the heating pipeline, and the third switching valve and the fourth switching valve are respectively provided on both sides of the heating unit.
[0016] In order to achieve the second utility model object, the utility model adopts the following technical solution:
[0017] A bus stop sign adopts the above-mentioned bus stop sign temperature control system.
[0018] Furthermore, it includes a control module, which is electrically connected to the first switching valve, the second switching valve, the third switching valve and the fourth switching valve, and is used to control the on-off of the heat dissipation pipeline and the heating pipeline.
[0019] Furthermore, the control module is used to control the first switching valve and the second switching valve to open, and control the third switching valve and the fourth switching valve to close in the heat dissipation state;
[0020] In the heating state, the third switching valve and the fourth switching valve are controlled to be opened, and the first switching valve and the second switching valve are controlled to be closed.
[0021] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:
[0022] The utility model dissipates heat or heats the electric control box of the bus stop sign through the liquid medium in the first heat exchanger, which can avoid opening more heat dissipation holes and reducing the waterproof performance of the bus stop sign. At the same time, it can also achieve better thermal insulation effect when the external ambient temperature is low, ensuring the normal operation of the electric control components in the electric control box.
[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:
[0025] Figure 1 It is a schematic diagram of a temperature control system for a bus stop sign of the utility model.
[0026] Description of the main components in the figure: 1. First heat exchanger; 2. Circulation pump; 3. Heat dissipation pipeline; 4. Heating pipeline; 5. First switching valve; 6. Second heat exchanger; 7. Second switching valve; 8. Third switching valve; 9. Heating unit; 10. Fourth switching valve; 11. Cooling fan; 12. Electronic control box; 13. First temperature sensor; 14. Second temperature sensor.
[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.
[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] Most of the existing bus stops use air cooling for heat dissipation. However, due to the irregularity and non-flatness of the stop structure and electronic control components, the wind force and circulation inside the stop will be affected to a certain extent, resulting in the inability to ensure the heat dissipation effect of the electronic control components.
[0032] In view of this, if Figure 1 As shown, the utility model provides a bus stop temperature control system, including a first heat exchanger 1, a circulation pump 2, a heat dissipation pipeline 3 and a heating pipeline 4.
[0033] The first heat exchanger 1 exchanges heat with the electric control box 12 of the bus stop through a liquid medium, and its output end is connected to the input end of the circulation pump 2. The circulation pump 2 includes a first output end and a second output end. The first output end and the second output end are respectively connected to a heat dissipation pipeline 3 and a heating pipeline 4 arranged in parallel. The output sides of the heat dissipation pipeline 3 and the heating pipeline 4 are both connected to the input end of the first heat exchanger 1 to form a loop.
[0034] The liquid medium is preferably ethylene glycol.
[0035] In the heat dissipation mode, under the action of the circulation pump 2, the liquid that absorbs the heat in the electronic control box 12 flows along the heat dissipation pipeline 3. After heat exchange with the outside air, the temperature of the liquid in the heat dissipation pipeline 3 decreases, and enters the first heat exchanger 1 through the input side of the first heat exchanger 1, and exchanges heat with the electronic control box 12 again to carry out the next cycle.
[0036] In the heating mode, under the action of the circulation pump 2, the liquid is heated along the heating pipeline 4, and then enters the first heat exchanger 1 again through the input end of the first heat exchanger 1 to perform heat exchange with the electronic control box 12 to ensure the normal operation of the electronic control components therein.
[0037] Preferably, in order to ensure the efficiency of heat exchange between the first heat exchanger 1 and the electric control box 12, the first heat exchanger 1 of the utility model adopts a coil heat exchanger.
[0038] In one embodiment of the utility model, a first switching valve 5 and a second heat exchanger 6 are arranged in series on the heat dissipation pipeline 3, and the output end of the second heat exchanger 6 is connected to the input end of the first heat exchanger 1, wherein the first switching valve 5 is used to control the on-off of the heat dissipation pipeline 3, and the second heat exchanger 6 is used to exchange heat with the outside air. In this process, the temperature of the liquid that absorbs heat in the electronic control box 12 is reduced again and can participate in the next cycle. The air after absorbing heat is discharged from the bus stop through the exhaust port of the bus stop.
[0039] Furthermore, in order to increase the heat exchange efficiency of the second heat exchanger 6, the bus stop temperature control system of the utility model is also provided with a cooling fan 11, and the second heat exchanger 6 is arranged on the air outlet side of the cooling fan 11. When the cooling air valve is opened, under the action of the cooling fan 11, the outside air is sucked into the bus stop and blown toward the second heat exchanger 6, and the air after heat exchange is discharged from the exhaust port of the bus stop.
[0040] Preferably, the rotation speed of the cooling fan 11 and the opening of the cooling air valve can be adjusted based on the required cooling efficiency.
[0041] Compared with the prior art of opening a number of heat dissipation holes, in this embodiment, the heat absorbed in the heat dissipation pipeline 3 is centrally dissipated through the heat dissipation fan 11. Under the premise of ensuring the heat dissipation effect, the impact on the waterproof performance of the bus stop sign can also be reduced; on the other hand, due to the reduction of heat dissipation holes, when the external ambient temperature is low, the bus stop sign temperature control system of this embodiment can also achieve a better insulation effect.
[0042] If only the first switching valve 5 is provided, when the first switching valve 5 is closed, the heat dissipation pipeline 3 stops working, but the liquid in the heating pipeline 4 will be partially stored in the idle heat dissipation pipeline 3. As the liquid flow rate decreases, the heating efficiency is reduced.
[0043] Therefore, in order to reduce the amount of liquid stored in the heat dissipation pipeline 3, the heat dissipation pipeline 3 is further provided with a second switching valve 7 in this embodiment, and the first switching valve 5 and the second switching valve 7 are respectively provided on both sides of the second heat exchanger 6. When the first switching valve 5 and the second switching valve 7 are both closed, the heat dissipation pipeline 3 stops working, and at this time, most of the liquid will circulate along the heating pipeline 4 to ensure the heating efficiency.
[0044] In another embodiment of the present utility model, a third switching valve 8 and a heating unit 9 are arranged in series on the heating pipeline 4 , and an output end of the heating unit 9 is connected to an input end of the first heat exchanger 1 .
[0045] In the heating mode, the third switching valve 8 is opened, and under the action of the circulation pump 2, the liquid enters the heating unit 9 and is heated, and then is sent into the first heat exchanger 1 through the input end of the first heat exchanger 1, and exchanges heat with the electronic control box 12 to increase the temperature in the electronic control box 12, thereby ensuring the normal operation of the electronic control components, and the liquid after heat exchange undergoes the next cycle.
[0046] Furthermore, if only the third switching valve 8 is provided on the heating pipeline 4, when the third switching valve 8 is closed, the heating pipeline 4 stops working accordingly, but the liquid in the heat dissipation pipeline 3 will be partially stored in the idle heating pipeline 4, thereby reducing the heat dissipation efficiency.
[0047] Therefore, in order to reduce the amount of liquid stored in the heating pipeline 4, a fourth switching valve 10 is further provided on the heating pipeline 4 in this embodiment, and the third switching valve 8 and the fourth switching valve 10 are respectively provided on both sides of the heating unit 9. When the third switching valve 8 and the fourth switching valve 10 are both closed, the heating pipeline 4 stops working, and at this time, most of the liquid will circulate along the heat dissipation pipeline 3 to ensure the heat dissipation efficiency.
[0048] In a preferred embodiment of the present utility model, a first switching valve 5 and a second switching valve 7 are provided on the heat dissipation pipeline 3 , and a third switching valve 8 and a fourth switching valve 10 are provided on the heating pipeline 4 .
[0049] Its workflow is:
[0050] In the heat dissipation mode, the first switching valve 5, the second switching valve 7 and the heat dissipation air valve are all opened, and the third switching valve 8 and the fourth switching valve 10 are closed.
[0051] After the liquid in the first heat exchanger 1 absorbs the heat in the electronic control box 12, it flows along the heat dissipation pipeline 3 to the second heat exchanger 6 under the action of the circulation pump 2, and exchanges heat with the outside air entering the bus stop through the heat dissipation air valve. The air after heat exchange is discharged through the exhaust port of the bus stop, and the liquid after heat exchange continues to flow back to the first heat exchanger 1 along the heat dissipation pipeline 3, exchanges heat with the electronic control box 12 again, and performs the next cycle.
[0052] In the heating mode, the third switching valve 8 and the fourth switching valve 10 are opened, the first switching valve 5 and the second switching valve 7 are closed, the heat dissipation pipeline 3 stops working, and the heat dissipation air valve is closed, so that the outside cold air cannot enter the bus stop sign, thereby achieving a better insulation effect on the bus stop sign.
[0053] The liquid in the first heat exchanger 1 is sent to the heating unit 9 along the heating pipeline 4 for heating under the action of the circulation pump 2. The heated liquid is sent back to the first heat exchanger 1 along the heating pipeline 4 to exchange heat with the electric control box 12, thereby increasing the temperature in the electric control box 12 and ensuring the normal operation of the electric control components. Then, the next cycle is carried out under the action of the circulation pump 2.
[0054] The utility model also provides a bus stop adopting the above-mentioned bus stop temperature control system, including a control module, which is electrically connected to the first switching valve 5, the second switching valve 7, the third switching valve 8 and the fourth switching valve 10, and is used to control the on-off of the heat dissipation pipeline 3 and the heating pipeline 4.
[0055] Specifically, the control module is used to control the first switching valve 5 and the second switching valve 7 to open, and control the third switching valve 8 and the fourth switching valve 10 to close in the heat dissipation state;
[0056] In the heating state, the third switching valve 8 and the fourth switching valve 10 are controlled to be opened, and the first switching valve 5 and the second switching valve 7 are controlled to be closed.
[0057] In one embodiment of the present utility model, the bus stop sign is further provided with a first temperature sensor 13 for detecting the temperature of the electric control box and a second temperature sensor 14 for detecting the temperature of the liquid in the pipeline.
[0058] The control module determines whether to operate in the heat dissipation mode, the heating mode or the standby mode according to the feedback data from the first temperature sensor 13 .
[0059] Specifically, when the temperature inside the electronic control box 12 is greater than or equal to the first set temperature and less than or equal to the second set temperature, the electronic control components can work normally. At this time, the control module controls the bus stop temperature control system to enter the standby mode, that is, the first switching valve 5, the second switching valve 7, the third switching valve 8 and the fourth switching valve 10 are all closed.
[0060] When the temperature in the electric control box 12 is greater than the second set temperature, that is, the feedback information of the first temperature sensor 13 is greater than the second set temperature, the control module determines to enter the heat dissipation mode, controls the first switching valve 5 and the second switching valve 7 to open, and controls the third switching valve 8 and the fourth switching valve 10 to close, and the liquid that absorbs the heat in the electric control box 12 exchanges heat with the outside air at the second heat exchanger 6, and the air that absorbs the heat is discharged through the exhaust port of the bus stop.
[0061] When the temperature in the electric control box 12 is lower than the first set temperature, in order to ensure the normal operation of the electric control components, the control module determines that the heating mode is entered, controls the third switching valve 8 and the fourth switching valve 10 to open, and controls the first switching valve 5 and the second switching valve 7 to close.
[0062] Preferably, in this embodiment, the temperature of the liquid in the pipeline is raised to the minimum temperature for normal operation of the electronic control components under the action of the heating unit 9 to ensure economy, and the control module adjusts the power of the heating unit 9 accordingly according to the feedback information of the second temperature sensor 14.
[0063] The bus stop sign of the utility model can ensure waterproof performance due to the reduced number of heat dissipation holes, and can also have a better heat preservation effect when the external ambient temperature is low, so as to ensure the normal operation of the electric control components in the electric control box 12.
[0064] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.
Claims
1. A bus stop temperature control system, characterized in that: It includes a first heat exchanger, a circulation pump, a heat dissipation pipeline and a heating pipeline; The first heat exchanger exchanges heat with the electronic control box of the bus stop sign through a liquid medium, and its output end is connected to the input end of a circulation pump. The circulation pump includes a first output end and a second output end. The first output end and the second output end are respectively connected to a heat dissipation pipeline and a heating pipeline arranged in parallel. The output sides of the heat dissipation pipeline and the heating pipeline are both connected to the input end of the first heat exchanger.
2. A bus stop temperature control system according to claim 1, characterized in that: The first heat exchanger is a coil heat exchanger.
3. A bus stop temperature control system according to claim 1, characterized in that: A first switching valve and a second heat exchanger are arranged in series on the heat dissipation pipeline, and an output end of the second heat exchanger is connected to an input end of the first heat exchanger.
4. A bus stop temperature control system according to claim 3, characterized in that: A second switching valve is also provided on the heat dissipation pipeline, and the first switching valve and the second switching valve are respectively provided on both sides of the second heat exchanger.
5. A bus stop temperature control system according to claim 3, characterized in that: It also includes a heat dissipation fan, and the second heat exchanger is arranged on the air outlet side of the heat dissipation fan.
6. A bus stop temperature control system according to claim 1, characterized in that: A third switching valve and a heating unit are arranged in series on the heating pipeline, and an output end of the heating unit is connected to an input end of the first heat exchanger.
7. A bus stop temperature control system according to claim 6, characterized in that: The heating pipeline is also provided with a fourth switching valve, and the third switching valve and the fourth switching valve are respectively provided on both sides of the heating unit.
8. A bus stop sign, characterized in that: A bus stop temperature control system as described in any one of claims 1 to 7 is adopted.
9. A bus stop sign according to claim 8, characterized in that: It includes a control module, which is electrically connected to the first switching valve, the second switching valve, the third switching valve and the fourth switching valve, and is used to control the on-off of the heat dissipation pipeline and the heating pipeline.
10. A bus stop sign according to claim 9, characterized in that: The control module is used to control the first switching valve and the second switching valve to open, and control the third switching valve and the fourth switching valve to close in the heat dissipation state; In the heating state, the third switching valve and the fourth switching valve are controlled to be opened, and the first switching valve and the second switching valve are controlled to be closed.