Radiator for railway vehicle

Abstract

The invention relates to a radiator for a railway vehicle. The radiator comprises a core body, a mounting block, a first sealing head and a second sealing head, wherein the mounting block is used for connecting the core body to a fan and an air duct of the railway vehicle; a flow channel is formed in the core body and used for allowing cooling liquid to flow. The first end socket is provided with a liquid injection hole communicated with the flow channel, and the second end socket is provided with a liquid discharge hole communicated with the flow channel. And the core body can transfer heat of the cooling liquid to air flow passing through the core body when the cooling liquid flows from the liquid injection hole to the liquid discharge hole through the flow channel. By using the first end socket and the second end socket which are integrally formed, the integration level of the radiator can be effectively improved, and the risk of cooling liquid leakage of the radiator is reduced. Different loads applied to the radiator due to vibration impact in the running process of the railway vehicle are borne through bolts and / or rivets arranged in the first connecting hole and the second connecting hole of the mounting block and in the third connecting holes of the first end socket and the second end socket respectively, and therefore the reliability of radiator mounting is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of radiators, and in particular to a radiator used for a rail vehicle. Background Art

[0002] The converter cooling system is an important part of rail vehicles. Its function is to cool the electronic components in the main converter cabinet to ensure the safe operation of the traction system. With the rapid development of rail vehicle application technology, all system components are developing in the direction of intelligence, lightness and modularization. The traction system of rail vehicles needs to install more auxiliary components such as sensors, resulting in the continuous increase in the cooling power required for the main converter cabinet.

[0003] Currently, radiators used in rail vehicles have low integration and reliability, and there is a high risk of leakage during daily use. Summary of the invention

[0004] Based on the above problems existing in the prior art, the present invention provides a radiator for a rail vehicle, which has good heat dissipation performance, high integration and reliability.

[0005] The technical solution adopted by the present invention to solve the technical problem is: to provide a radiator for a rail vehicle, comprising:

[0006] A core body, wherein a flow channel is configured inside the core body for allowing a coolant to flow;

[0007] A mounting block for connecting the core to a fan and an air duct of the rail vehicle; and

[0008] The first end cap and the second end cap are integrally formed, wherein the first end cap is provided with a liquid injection hole communicating with the flow channel, and the second end cap is provided with a liquid discharge hole communicating with the flow channel,

[0009] The core is configured to transfer the heat of the coolant to the airflow passing through the core when the coolant flows from the injection hole through the flow channel to the discharge hole.

[0010] Furthermore, the first head and the second head are internally constructed with a cavity connected to the flow channel, and a partition plate is provided in the cavity. The partition plate is constructed to enable the coolant entering the flow channel from the injection hole to pass through the core body multiple times before being discharged from the drainage hole.

[0011] Furthermore, the cavity includes a first cavity connected to the injection hole or the drainage hole, and a second cavity separated from the first cavity. The coolant entering the first cavity of the first head through the injection hole flows through the flow channel in sequence through the second cavity of the second head, the second cavity of the first head, and the first cavity of the second head, and is then discharged from the drainage hole.

[0012] Furthermore, the first end cover and / or the second end cover is provided with a mounting hole communicated with the cavity, for mounting a temperature sensor so as to detect the temperature of the coolant in the radiator.

[0013] Furthermore, the first end cover and the second end cover are also provided with mounting grooves for connecting the radiator to the frame of the rail vehicle.

[0014] Furthermore, a third connecting hole is provided on the groove wall of the mounting groove so that the radiator can be connected to the frame of the rail vehicle through a connecting member installed in the third connecting hole, and the connecting member is configured to withstand the axial load applied by the radiator.

[0015] Furthermore, the first end cap and the second end cap are integrally formed by casting or 3D printing.

[0016] Furthermore, a plurality of first connection holes are provided on an end surface of the mounting block away from the core body for connecting to the air duct.

[0017] Furthermore, a plurality of second connection holes are provided on an end surface of one side of the mounting block parallel to the core body, for connecting the fan.

[0018] Furthermore, a step is provided on the mounting block for positioning when the mounting block and the core are connected.

[0019] The beneficial effects of the present invention are as follows: a radiator for a rail vehicle provided by the present invention comprises a core, a mounting block for connecting the core to a fan and an air duct of the rail vehicle, and an integrally formed first end cap and a second end cap. A flow channel is constructed inside the core for supplying coolant flow. A liquid injection hole communicating with the flow channel is provided on the first end cap, and a liquid discharge hole communicating with the flow channel is provided on the second end cap. Wherein, the core is configured to transfer the heat of the coolant to the airflow passing through the core when the coolant flows from the liquid injection hole through the flow channel to the liquid discharge hole. By using the integrally formed first end cap and the second end cap, the integration of the radiator can be effectively improved, and the risk of coolant leakage of the radiator can be reduced. In addition, the bolts and / or rivets provided in the first connection hole and the second connection hole of the mounting block and the third connection hole of the first end cap and the second end cap can respectively bear the different loads applied to the radiator due to the vibration and impact of the rail vehicle during operation, thereby enhancing the reliability of the installation of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 Shown is a schematic structural diagram of a radiator for a rail vehicle.

[0022] Figure 2 Shown Figure 1 The schematic diagram of the structure of the second head of the radiator from one perspective is shown.

[0023] Among them, the figure marks in the figure are: 100, radiator; 101, windward surface; 10, core; 11, heat sink; 20, mounting block; 21, first connecting hole; 22, second connecting hole; 23, step; 30, first head; 31, injection hole; 40, second head; 41, drainage hole; 50, cavity; 51, partition plate; 52, first cavity; 53, second cavity; 54, mounting hole; 55, mounting groove; 551, third connecting hole; 56, boss; 561, fourth connecting hole; 60, exhaust hole. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] refer to Figure 1 As shown, a radiator 100 for a rail vehicle provided by the present invention comprises a core 10, a mounting block 20 arranged at the edge of the core 10, and a first end cap 30 and a second end cap 40. The core 10 can be installed at the fan and the air duct (not shown in the figure) of the cooling system through the mounting block 20, the first end cap 30 and the second end cap 40, so that air can pass through the core 10 at a faster flow rate, thereby improving the heat dissipation efficiency of the radiator 100.

[0026] In some embodiments, the heat sink 100 may be made of metal or alloy such as aluminum, copper, etc. to ensure the heat dissipation efficiency of the heat sink 100 .

[0027] Combination Figure 1 In some embodiments, the core 10 can be connected to the air duct of the rail vehicle through the mounting block 20. The surface of the core 10 is provided with a plurality of heat sinks 11 spaced apart from each other so as to increase the contact area between the core 10 and the air flowing in the air duct. The core 10 is provided with a flow channel (not shown in the figure) for the circulation of the coolant inside, and the coolant can fully conduct the heat absorbed from the main converter cabinet to the heat sink 11 of the core 10. In some embodiments, the coolant can be water, cooling oil, etc.

[0028] In some embodiments, two mounting blocks 20 are provided, and the two mounting blocks 20 are respectively provided at two opposite edges of the core 10. A plurality of first connection holes 21 are provided on the end surface of the mounting block 20 away from the core 10, which are used to connect to the air duct of the rail vehicle. A plurality of second connection holes 22 are provided on the end surface of the mounting block 20 parallel to the core 10, which are used to connect to the fan. In this way, the radiator 100 can be connected to the fan and the air duct at the same time, so as to enhance the firmness of the installation of the radiator 100.

[0029] In some of the embodiments, the first connection hole 21 and the second connection hole 22 may be threaded holes and / or rivet holes, so that the mounting block 20 is connected to the fan and the air duct by screws and / or rivets. The screws and / or rivets provided in the first connection hole 21 mainly bear the shear load applied to the radiator 100 due to the vibration and impact of the rail vehicle during operation, while the screws and / or rivets provided in the second connection hole 22 mainly bear the axial load applied to the radiator 100 due to the vibration and impact of the rail vehicle during operation. In some other embodiments not shown, the fan and the air duct may also be connected by means of clamping, welding, etc. This will not be elaborated in detail in the present application.

[0030] Combine again Figure 1As shown, in some embodiments, the mounting block 20 is connected to the core 10 by welding. A step 23 is provided on the surface of the mounting block 20 facing the core 10, which is used to position the core 10 during welding, so as to ensure that the size and structure of each radiator 100 manufactured are more uniform. In addition, the step 23 can also prevent the height of the weld produced when the core 10 and the mounting block 20 are welded from protruding from the windward surface 101 of the radiator 100, so as to ensure that the windward surface 101 can better fit the fan when the mounting block 20 is connected to the fan. In this way, the airflow generated by the fan during operation can pass through the core 10 as completely as possible, thereby improving the heat dissipation effect of the radiator 100.

[0031] refer to Figure 1 and Figure 2 As shown. In some embodiments, the first head 30 and the second head 40 are both configured with a cavity 50 on one side facing the core 10, which is used to connect the flow channel in the core 10. The first head 30 and the second head 40 are respectively provided with an injection hole 31 and a drainage hole 41. When the core 10 is connected to the first head 30 and the second head 40, the injection hole 31 and the drainage hole 41 are connected to the flow channel in the core 10 through the cavity 50, so that the coolant can enter the cavity 50 in the first head 30 through the injection hole 31 and then flow into the flow channel in the core 10, and then pass through the cavity 50 in the second head 40 and be discharged from the drainage hole 41.

[0032] In some preferred embodiments, a partition plate 51 is provided in the cavity 50 of the first head 30 and the second head 40 to divide the cavity 50 into at least two parts, including a first cavity 52 directly connected to the injection hole 31 or the drainage hole 41, and a second cavity 53 separated from the first cavity 52. ​​In this way, the flow channel can be bent and arranged in the core body 10 to connect the injection hole 31 and the drainage hole 41.

[0033] In a specific embodiment, the partition plate 51 is disposed at one third of the length of the first end cap 30 and the second end cap 40. In this way, the heat of the coolant can be fully transferred to the core body 10 under the premise that the flow channel of the core body 10 meets the flow resistance of the coolant, thereby greatly improving the heat dissipation performance of the radiator 100.

[0034] In some preferred embodiments, after absorbing the heat generated by the main converter cabinet, the coolant enters the first cavity 52 of the first head 30 through the injection hole 31, and then flows into the flow channel of the core 10 and flows to the second cavity 53 of the second head 40. In this process, the coolant continuously transfers heat to the heat sink 11 of the core 10. The coolant flows into the flow channel of the core 10 from the second cavity 53 of the second head 40 and flows to the second cavity 53 of the first head 30. In this process, the coolant once again transfers heat to the heat sink 11 of the core 10. Finally, the coolant flows into the flow channel of the core 10 from the second cavity 53 of the first head 30 and flows to the first cavity 52 of the second head 40, and is finally discharged from the drain hole 41. In this process, the coolant once again transfers heat to the heat sink 11 of the core 10. The coolant discharged from the drain hole 41 flows back to the main converter cabinet to reabsorb the heat generated by the main converter cabinet. Therefore, in this embodiment, the coolant passes through the core 10 three times. This allows the heat in the coolant to be fully transferred to the heat sink 11 of the core 10, thereby improving the heat exchange efficiency.

[0035] Combination Figure 1 and Figure 2 As shown, in some embodiments, the first head 30 and / or the second head 40 are also provided with a mounting hole 54 connected to the cavity, for installing a temperature sensor (not shown in the figure) to detect the temperature of the coolant in the radiator 100. The technician can adjust the output power of the fan according to the temperature of the coolant in the radiator 100 to ensure that the temperature of the coolant can always be within the set range. Once the temperature of the coolant is higher than the maximum value of the set range, the output power of the fan can be increased so that the air can quickly take away the heat from the heat sink 11, thereby improving the efficiency of heat transfer between the coolant and the heat sink 11. Once the temperature of the coolant is lower than the minimum value of the set range, the output power of the fan can be reduced.

[0036] In some preferred embodiments, the mounting hole 54 is opened beside the drain hole 41 and communicates with the first cavity 52 of the second head 40. The temperature sensor can monitor the temperature of the coolant discharged from the drain hole 41 to ensure the heat dissipation effect and efficiency of the radiator 100.

[0037] Combine again Figure 1 and Figure 2As shown, in some embodiments, the first end cap 30 and the second end cap 40 are further provided with a mounting groove 55, and a third connecting hole 551 is provided on the groove surface of the mounting groove 55, which is used to install the radiator 100 on the frame of the rail vehicle through a connecting piece (not shown in the figure) such as a bolt or a rivet. In this way, the firmness of the installation of the radiator 100 can be further enhanced. On the one hand, by providing the mounting groove 55, the tolerance requirements for the installation of the radiator 100 can also be reduced, the installation efficiency can be improved, and the installation difficulty can be reduced. On the other hand, the mounting groove 55 can also enable the radiator 100 to be embedded in the air duct, thereby saving space for the vehicle body and the cooling system and reducing the weight of the cooling system. Preferably, the third connecting hole 551 is provided on the groove surface of the mounting groove 55 parallel to the windward surface 101 of the radiator 100. In this way, the connecting piece can bear the axial load applied to the radiator 100 due to the vibration and impact of the rail vehicle during operation as much as possible, and avoid the connecting piece from bearing shear load, thereby further improving the reliability of the installation of the radiator 100.

[0038] In some embodiments, a boss 56 is further provided in the cavity of the first head 30 and the second head 40 so that a fourth connection hole 561 can be processed on the first head 30 and the second head 40 for installing other accessories. Other accessories can be provided accordingly by those skilled in the art as required. This application will not elaborate on this.

[0039] Combine again Figure 1 and Figure 2 As shown, in some embodiments, the first and second end caps 30 and 40 are further provided with exhaust holes 60 for exhausting the gas in the cavity. When the heat sink 100 is operating normally, the exhaust holes 60 can be sealed by a sealing plug (not shown in the figure).

[0040] In some embodiments, the first end cap 30 and the second end cap 40 are manufactured in an integrated manner to ensure the integrity of the first end cap 30 and the second end cap 40 and reduce the risk of leakage of the coolant at the first end cap 30 and the second end cap 40. In addition, the surfaces of the first end cap 30 and the second end cap 40 are easier to be flattened, thereby strengthening the sealing between the first end cap 30 and the second end cap 40 and the air duct, and ensuring that the airflow generated by the fan completely passes through the radiator 100.

[0041] In some embodiments, the first end cap 30 and the second end cap 40 can be manufactured by casting. In other embodiments, the first end cap 30 and the second end cap 40 can also be manufactured by 3D printing or integral processing.

[0042] The beneficial effect of the radiator 100 for rail vehicles provided by the present invention is that the integration of the radiator 100 can be effectively improved by using the integrally formed first head 30 and second head 40, and the risk of coolant leakage of the radiator 100 can be reduced. In addition, the bolts and / or rivets provided in the first connection hole 21 and the second connection hole 22 of the mounting block 20, and the third connection hole 551 of the first head 30 and the second head 40 can respectively bear different loads applied to the radiator 100 due to vibration and impact of the rail vehicle during operation, thereby enhancing the reliability of the installation of the radiator 100.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A radiator for a rail vehicle, comprising: A core (10), wherein a flow channel is configured inside the core (10) for allowing a coolant to flow; A mounting block (20) for connecting the core (10) to a fan and an air duct of the rail vehicle; and A first end cap (30) and a second end cap (40) are integrally formed, wherein the first end cap (30) is provided with a liquid injection hole (31) communicating with the flow channel, and the second end cap (40) is provided with a liquid discharge hole (41) communicating with the flow channel. in, The core (10) is configured to transfer the heat of the coolant to the airflow passing through the core (10) when the coolant flows from the injection hole (31) through the flow channel to the discharge hole (41).

2. The radiator for a rail vehicle according to claim 1, characterized in that: The first end cap (30) and the second end cap (40) are internally constructed with a cavity (50) connected to the flow channel, and a partition plate (51) is arranged in the cavity (50). The partition plate (51) is constructed so that the coolant entering the flow channel through the injection hole (31) can pass through the core (10) multiple times before being discharged from the discharge hole (41).

3. The radiator for a rail vehicle according to claim 2, characterized in that: The cavity (50) comprises a first cavity (52) connected to the injection hole (31) or the drainage hole (41), and a second cavity (53) separated from the first cavity (52). The cooling liquid entering the first cavity (52) of the first head (30) through the injection hole (31) flows through the flow channel in sequence through the second cavity (53) of the second head (40), the second cavity (53) of the first head (30), and the first cavity (52) of the second head (40), and is then discharged from the drainage hole (41).

4. The radiator for a rail vehicle according to claim 2, characterized in that: The first end cap (30) and / or the second end cap (40) is provided with a mounting hole (54) in communication with the cavity (50) and is used for mounting a temperature sensor so as to detect the temperature of the coolant in the radiator (100).

5. The radiator for a rail vehicle according to claim 1, characterized in that: The first end cap (30) and the second end cap (40) are also provided with mounting grooves (55) for connecting the radiator (100) to the frame of the rail vehicle.

6. The radiator for a rail vehicle according to claim 4, characterized in that: A third connecting hole (551) is provided on the groove wall of the installation groove (55) so that the radiator (100) can be connected to the frame of the rail vehicle via a connecting piece installed in the third connecting hole (551), and the connecting piece is configured to withstand an axial load applied by the radiator (100).

7. The radiator for a rail vehicle according to any one of claims 1 to 6, characterized in that: The first end cap (30) and the second end cap (40) are integrally formed by casting or 3D printing.

8. The radiator for a rail vehicle according to any one of claims 1 to 6, characterized in that: A plurality of first connection holes (21) are provided on an end surface of the mounting block (20) away from the core (10) and are used for connecting to the air duct.

9. The radiator for a rail vehicle according to claim 8, characterized in that: A plurality of second connection holes (22) are provided on one end surface of the mounting block (20) parallel to the core body (10) for connecting to the fan.

10. The radiator for a rail vehicle according to any one of claims 1 to 6, characterized in that: The mounting block (20) is also provided with a step (23) for positioning when the mounting block (20) and the core (10) are connected.

Images