Electrical oil heater
The electric oil heater design addresses the limitation of heating range by using a connection element to space heat fins, increasing the heating area and reducing production costs through simplified manufacturing.
Patent Information
- Application Number
- CN202422236416.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing heat sink oil bags with electric heating oil tins are highly limited, resulting in a reduction in heating range, low welding efficiency and difficult to guarantee quality.
Connectors are used to connect the flip holes of adjacent heat sinks through the communication channel, cancel the direct welding design, and use a vacuum furnace to braze and weld multiple heat sinks to simplify the structure and extend the spacing of heat sinks.
The heating range of the electric heating oil tin is increased, manufacturing cost is reduced, and welding efficiency and connection stability are improved.
Smart Images
Figure CN223106143U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, and more specifically, to an electric oil radiator. Background Art
[0002] An electric oil radiator, abbreviated as an electric oil heater, is a heater in which an electric heating tube is installed inside the cavity of a heat sink, and heat-conducting oil is injected around the electric heating tube in the cavity. When the power is turned on, the heat-conducting oil around the electric heating tube is heated and rises to the upper part of the cavity, and convects and circulates along the heat sink, and radiates heat through the surface of the cavity wall, thereby heating the space environment.
[0003] In the related art, the front and back sides of the heat sink of the electric oil radiator adopt an oil pocket structure design to store the heat-conducting oil, and at the same time, the oil pockets of multiple groups of heat sinks are welded together by pressure resistance welding. However, the height of the oil pocket in the related art is limited by materials and structures, and increasing the height of the oil pocket easily causes the oil pocket to crack and leak oil. Therefore, when the number of heat sinks is certain, the overall height of the electric oil radiator will be limited, thereby reducing the heating range of the electric oil radiator. Summary of the Utility Model
[0004] In view of this, an embodiment of the present utility model provides an electric oil radiator to solve the technical problem of the reduced heating range of the electric oil radiator.
[0005] The technical solution of the present utility model is realized as follows:
[0006] The present utility model provides an electric oil radiator, which includes: a plurality of first heat sinks arranged at intervals; a connecting member; between adjacent first heat sinks, at least one side of the first heat sinks that are close to each other has a communication port, and a first turning hole is formed by extending the side wall at the communication port; the connecting member has a communication channel, and adjacent first heat sinks are connected by the connecting member, so that adjacent first turning holes are communicated through the communication channel.
[0007] In some embodiments, the connecting member includes a first connecting pipe having the communication channel, an oil passing hole is formed on the pipe wall of the first connecting pipe, the first connecting pipe passes through the first turning hole and is connected to the first heat sink, so that the oil passing hole is located inside the first heat sink.
[0008] In some embodiments, the first turning holes are respectively formed on opposite sides of the first heat sink, and the first connecting pipe penetrates through at least one first heat sink through the first turning hole.
[0009] In some embodiments, the side wall of the first turning hole and the first connecting pipe are welded by vacuum furnace brazing.
[0010] In some embodiments, within the same first heat sink, a plurality of oil passing holes are formed on the tube wall of the first connecting pipe, and the oil passing holes are arranged at intervals around the circumferential direction of the first connecting pipe.
[0011] In some embodiments, in each of the first heat sinks, the distance between adjacent first heat sinks is adjustable.
[0012] In some embodiments, the side wall at the communication port (10a) is turned outward to form the first turned hole (10b), the angle at which the side wall at the communication port is turned outward is less than or equal to 90°, or the side wall at the communication port (10a) at least partially fits with the circumferential side wall of the connecting member (20).
[0013] In some embodiments, the electric oil radiator further includes second heat sinks located on the top side and / or bottom side of the first heat sink. A partial area on the side of the second heat sink close to the first heat sink is open to form a second turned hole, the side of the second heat sink facing away from the first heat sink is closed, the first heat sink has the first turned hole on the side close to the second heat sink, and the second turned hole is communicated with the adjacent first turned hole through the communication channel.
[0014] In some embodiments, the electric oil radiator includes third heat sinks located on the top side or bottom side of the first heat sink, and a plurality of the connecting members;
[0015] On the side of the first heat sink close to the third heat sink, the first heat sink is formed with a plurality of first turned holes corresponding to the connecting members one by one;
[0016] On the side close to the first heat sink, the third heat sink is formed with a first number of third turned holes, and the first number of third turned holes are communicated with the connecting members one by one;
[0017] On the side facing away from the first heat sink, the third heat sink is formed with a second number of the third turned holes; wherein, the second number is less than the first number.
[0018] In some embodiments, the connecting member includes at least one second connecting pipe, the second connecting pipe has the communication channel, and the second connecting pipe is located between two adjacent first turned holes.
[0019] In some embodiments, the second connecting pipe is a hollow pipe body, and opposite ends of the hollow pipe body are respectively connected to the hole walls of adjacent first turned holes.
[0020] In some embodiments, each of the first heat sinks has a plurality of first turned holes arranged at intervals along the length direction, the electric oil radiator includes a plurality of the connecting members, and the connecting members respectively correspond to the first turned holes of the first heat sinks one by one.
[0021] An embodiment of the present invention provides an electric oil radiator, which includes a connecting member and a plurality of first heat sinks arranged at intervals. Between adjacent first heat sinks, at least one side of the first heat sinks close to each other has a communication port, and a side wall at the communication port extends to form a first turned hole. The connecting member has a communication channel, and adjacent first heat sinks are connected by the connecting member so that the adjacent first turned holes are communicated through the communication channel. On the one hand, since the first heat sinks of the electric oil radiator are not directly designed with oil-filled welding, but the adjacent first turned holes of the first heat sinks are respectively communicated through the communication channel of the connecting member, the distance between two adjacent first heat sinks can be extended. Thus, the overall height of the electric oil radiator will not be restricted by the structure of the first heat sinks, and the heating range of the electric oil radiator can be increased. On the other hand, the first heat sink forms a first turned hole by extending the side wall at the communication port, which greatly simplifies the structure of the first heat sink, facilitates the processing and manufacturing of the first heat sink, and thus can reduce the manufacturing cost of the electric oil radiator. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic structural diagram of an electric oil radiator in the related art;
[0023] Figure 2 is Figure 1 a top view of
[0024] Figure 3 is Figure 1 a front view of
[0025] Figure 4 is Figure 1 a welding schematic diagram of the electric oil radiator in
[0026] Figure 5 is a schematic structural diagram of an electric oil radiator according to an embodiment of the present application;
[0027] Figure 6 is Figure 5 an exploded view of the electric oil radiator in
[0028] Figure 7 is Figure 6 a schematic structural diagram of the first connecting pipe in
[0029] Figure 8 is Figure 6 a schematic structural diagram of the electric oil radiator from another perspective in
[0030] Figure 9 is Figure 6Cross-sectional view of the first heat sink of the electric oil radiator
[0031] Figure 10 is Figure 9 Partial enlarged view of location A in
[0032] Explanation of reference numerals in the drawings:
[0033] 10. First heat sink; 10a. Communication port; 10b. First turned hole; 20. Connector; 20a. Communication channel; 21. First connecting pipe; 21a. Oil passing hole; 30. Second heat sink; 30a. Second turned hole; 40. Third heat sink; 40a. Third turned hole; 50. Convex hull; 60. Pressure resistance welding equipment Detailed implementation manners
[0034] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model
[0035] For each specific technical feature described in the specific embodiments, without conflict, they can be combined in any suitable manner. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination manners of each specific technical feature in the present utility model will not be described separately
[0036] In the following description, the terms "first / second / ..." involved are only used to distinguish different objects and do not indicate that there is any same or related relationship between the objects. It should be understood that the orientation or positional relationship of "top", "bottom", "length direction" is based on the orientation or positional relationship shown in the attached Figure 5 drawings. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application
[0037] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including that element. "Plurality" means greater than or equal to two
[0038] AsFigures 1 to 4 As shown, in the related art, both the front and back sides of the heat dissipation fins of the electric oil radiator adopt an oil pocket structure, and multiple groups of heat dissipation fin assemblies are welded together by pressure resistance welding. However, the height of the oil pocket is limited by materials and structure, generally only able to reach 20 mm. If it exceeds this value, it will crack and leak oil, thus restricting the overall height of the electric oil radiator.
[0039] An embodiment of the present utility model provides an electric oil radiator. Please refer to Figure 5 and Figure 6 , the electric oil radiator includes a connecting member 20 and a plurality of first heat dissipation fins 10.
[0040] The plurality of first heat dissipation fins 10 are arranged at intervals. Between adjacent first heat dissipation fins 10, at least one side of the first heat dissipation fins 10 that are close to each other has a communication port 10a, and the side wall of the communication port 10a extends to form a first turned hole 10b.
[0041] The connecting member 20 has a communication channel 20a. Adjacent first heat dissipation fins 10 are connected by the connecting member 20 so that the adjacent first turned holes 10b are communicated through the communication channel 20a.
[0042] Specifically, the first heat dissipation fins 10 are arranged at intervals in the height direction and all extend in a direction perpendicular to the height direction.
[0043] The electric oil radiator includes a plurality of first heat dissipation fins 10. The specific number of the first heat dissipation fins 10 can be set according to actual situations, such as 2, 4, or 6.
[0044] Each first heat dissipation fin 10 has a communication port 10a. Along the interval direction, both sides of the first heat dissipation fin 10 located in the middle have communication ports 10a, while for the first heat dissipation fins 10 located on the outside, both sides may have communication ports 10a, or according to actual situations, only the inner side may have a communication port 10a.
[0045] The first turned hole 10b is formed by the extension of the side wall at the communication port 10a. For example, the side wall at the communication port 10a is turned outward to form the first turned hole 10b.
[0046] It should be noted that the folding angle of the side wall at the communication port 10a can be set according to actual situations.
[0047] For example, please refer to Figure 10 , the angle at which the side wall at the communication port 10a is turned outward is less than or equal to 90°. For example, 90°, that is to say, the side wall at the first turned hole 10b can be perpendicular to the outer surface of the first heat dissipation fin 10, so as to facilitate docking and communication with the connecting member 20. Of course, the side wall at the first turned hole 10b can also adopt a smaller included angle, such as 30°, 45°, or 60°.
[0048] Of course, in other embodiments, the angle at which the side wall at the communication port 10a is folded outward can also be other degrees. Alternatively, the side wall at the communication port 10a at least partially fits with the circumferential side wall of the connecting member 20 to ensure that the interior of the communication port 10a and the connecting member 20 is hermetically connected in the circumferential direction, preventing the flowing heat-conducting oil stored in the connecting member 20 from leaking outward and affecting the heating performance and use safety of the product.
[0049] Between two adjacent first heat dissipation fins 10, the first turning holes 10b of the two first heat dissipation fins 10 are not directly connected by extension and contact. The two first turning holes 10b are indirectly connected through the communication channel 20a of the connecting member 20.
[0050] That is to say, the first turning holes 10b of two adjacent first heat dissipation fins 10 are respectively connected to the communication channel 20a of the connecting member 20, thereby realizing their connection. Thus, by extending the length of the connecting member 20, the distance between two adjacent first heat dissipation fins 10 can be increased.
[0051] It should be noted that the specific cross-sectional form of the communication channel 20a of the connecting member 20 is not limited, such as rectangular, circular or other cross-sectional shapes.
[0052] The specific setting method of the connecting member 20 can be set according to the actual situation.
[0053] For example, please refer to Figure 7 , the connecting member 20 includes a first connecting pipe 21 having a communication channel 20a. An oil-passing hole 21a is formed on the pipe wall of the first connecting pipe 21. The first connecting pipe 21 passes through the first turning hole 10b and is connected to the first heat dissipation fin 10 so that the oil-passing hole 21a is located inside the first heat dissipation fin 10.
[0054] Specifically, the first connecting pipe 21 is not connected to the hole wall of the first turning hole 10b at its two ends respectively, but extends into the first heat dissipation fin 10 after passing through the first turning hole 10b and is connected to the first heat dissipation fin 10, so that the oil-passing hole 21a on the pipe wall of the first connecting pipe 21 connects the first heat dissipation fin 10 and the first connecting pipe 21. Thereby, the connection stability between the first heat dissipation fin 10 and the first connecting pipe 21 can be improved.
[0055] Again, for example, the connecting member 20 includes at least one second connecting pipe. The second connecting pipe has a communication channel 20a and is located between two adjacent first turning holes 10b. That is to say, the connecting member 20 can include one or more second connecting pipes, and the opposite ends of the second connecting pipe are respectively connected to the first turning holes 10b on the corresponding sides.
[0056] The specific setting method of the second connecting pipe is not limited. For example, the second connecting pipe is a hollow pipe body, and the opposite ends of the hollow pipe body are respectively connected to the hole walls of adjacent first turned holes 10b. That is to say, the second connecting pipe is an independent hollow pipe body, and it is not formed by extending the hole wall of the first turned hole 10b or the wall body of the oil pocket in the related art. Thus, it is convenient to adjust the distance between two adjacent first radiating fins 10 by increasing the length of the second connecting pipe.
[0057] According to the actual situation, the connecting member 20 of the electric oil radiator can only include the first connecting pipe 21, can also only include the second connecting pipe, or can also include the first connecting pipe 21 and the second connecting pipe at the same time.
[0058] It can be seen that in the electric oil radiator of the embodiment of the present utility model, on the one hand, since the first radiating fins 10 of the electric oil radiator are not directly welded by the oil pocket design, but the communication channels 20a of the connecting member 20 are respectively communicated with the first turned holes 10b of adjacent first radiating fins 10, the distance between two adjacent first radiating fins 10 can be extended. Thus, the overall height of the electric oil radiator will not be restricted by the structure of the first radiating fins 10, and the heating range of the electric oil radiator can be increased. On the other hand, the first radiating fins 10 extend to form the first turned holes 10b through the side walls of the communication ports 10a, which greatly simplifies the structure of the first radiating fins 10, facilitates the processing and manufacturing of the first radiating fins 10, and thus can reduce the manufacturing cost of the electric oil radiator.
[0059] In one embodiment, please refer to Figure 9 and Figure 10 , first turned holes 10b are respectively formed on the opposite sides of the first radiating fin 10, and the first connecting pipe 21 passes through at least one first radiating fin 10 through the first turned hole 10b. Thus, while improving the connection stability between the first connecting pipe 21 and the first radiating fin 10, the structure can be simplified and the processing can be made more convenient.
[0060] Specifically, the first connecting pipe 21 passes through the first turned holes 10b on the opposite sides of the first radiating fin 10 at the same time, so as to achieve the purpose of passing through the first radiating fin 10. Thus, the first radiating fins 10 are only communicated through the oil passing holes 21a on the first connecting pipe 21 located inside the first radiating fins 10 for the heat-conducting oil to pass through.
[0061] The first connecting pipe 21 can pass through only one first radiating fin 10, or can pass through multiple first radiating fins 10. Thus, for the electric oil radiator, part of the first radiating fins 10 can be connected by one first connecting pipe 21, or all the first radiating fins 10 of the electric oil radiator can be connected by one first connecting pipe 21. Thus, the structure and processing steps of the electric oil radiator can be simplified.
[0062] It should be noted that the connection method between the first connecting pipe 21 and the first heat sink 10 can also be set according to the actual situation.
[0063] For example, the side wall of the first turned hole 10b and the first connecting pipe 21 are welded by vacuum furnace brazing. Thus, the first connecting pipe 21 and multiple first heat sinks 10 can be welded synchronously, which can greatly improve the welding efficiency.
[0064] The specific method of vacuum furnace brazing is as follows: string multiple first heat sinks 10 on the first connecting pipe 21, and respectively sleeved brazing filler metals in the areas of the first connecting pipe 21 located at the first turned hole 10b. Put the whole into a vacuum brazing furnace, and melt the brazing filler metal through the high temperature in the vacuum brazing furnace. Due to capillary adsorption, the melted brazing filler metal is adsorbed in the gap between the first heat sink 10 and the first connecting pipe 21, and after cooling, the first heat sink 10 and the first connecting pipe 21 are welded together. Therefore, multiple first heat sinks 10 and the first connecting pipe 21 can be welded simultaneously, and the welding speed can be improved.
[0065] In the related art, the heat sink components are welded together by a pressure resistance welding device 60. Pressure resistance welding is a metal material connection technology, and its working principle is to use high temperature and high pressure to melt and connect metal materials together. During the pressure resistance welding process, two metal materials are tightly clamped by the upper and lower electrodes, and then heated by an electric current to raise the temperature of the contact point to the melting point. While melting, the upper and lower electrodes apply a certain pressure to make the two metal materials fuse with each other to form a solid welding point. However, only two heat sink components can be welded each time in the related art, and the welding efficiency is very low. There are many factors affecting the welding quality of pressure resistance welding, such as welding current, welding electrodes, air pressure, cooling water, etc. Therefore, it is very difficult to ensure the welding quality, the defective rate of welding is high, the rework rate is high, and the welding efficiency is low.
[0066] In this embodiment, vacuum furnace brazing is adopted, and multiple first heat sinks 10 can be welded synchronously, so the welding speed can be greatly improved.
[0067] In one embodiment, please refer to Figure 7 , within the same first heat sink 10, a plurality of oil passing holes 21a are formed on the pipe wall of the first connecting pipe 21, and the oil passing holes 21a are arranged at intervals around the circumference of the first connecting pipe 21. Thus, the area of the first heat sink 10 communicating with the communication channel 20a can be increased, so as to facilitate the better flow of each first heat sink 10 through the communication channel 20a of the connecting member 20.
[0068] Specifically, the pipe wall area of the first connecting pipe 21 located inside the first heat sink 10 has a plurality of oil passing holes 21a, and the oil passing holes 21a are arranged at intervals along the circumferential direction of the first connecting pipe 21, so as to facilitate the heat-conducting oil in each area inside the first heat sink 10 to enter the communication channel 20a.
[0069] It should be noted that, according to the actual situation, the pipe wall area of the first connecting pipe 21 located inside the first heat sink 10 may also have multiple groups of oil passing holes 21a arranged along the circumferential direction, and the groups of oil passing holes 21a are spaced along the length direction of the first connecting pipe 21. Thereby, the flow effect of the heat-conducting oil can be further improved.
[0070] In one embodiment, in each of the first heat sinks 10, the distance between adjacent first heat sinks 10 is adjustable. That is to say, since the spaced-apart first heat sinks 10 are connected by the first connecting pipe 21, the length of the first connecting pipe 21 and the interval distance between the first heat sinks 10 can be freely changed according to actual needs, so that the length of the electric oil radiator can be freely changed, and further the requirements for a larger heat radiation range and more efficient environmental temperature rise can be achieved.
[0071] In one embodiment, please refer to Figure 6 , the electric oil radiator further includes a second heat sink 30 located on the top side and / or bottom side of the first heat sink 10. A partial area on the side of the second heat sink 30 close to the first heat sink 10 is open to form a second turned hole 30a, the side of the second heat sink 30 facing away from the first heat sink 10 is closed, and the first heat sink 10 has a first turned hole 10b on the side close to the second heat sink 30. The second turned hole 30a and the adjacent first turned hole 10b are communicated through the communication channel 20a.
[0072] Specifically, the electric oil radiator may have a second heat sink 30 only arranged on the top side of the first heat sink 10, thereby closing the top of the electric oil radiator. The electric oil radiator may also have a second heat sink 30 only arranged on the bottom side of the first heat sink 10, thereby, the bottom of the electric oil radiator can be closed, and the heat-conducting oil can be prevented from flowing out from the second heat sink 30 located at the bottom. Of course, the electric oil radiator may also have second heat sinks 30 respectively arranged on the top side and the bottom side of the first heat sink 10, thereby closing both the top and the bottom of the electric oil radiator.
[0073] Among them, the second heat sink 30 is located on the bottom side of the first heat sink 10, which means that the second heat sink 30 is located on the bottom side of all the first heat sinks 10 of the electric oil radiator, that is, the second heat sink 30 is the heat sink structure at the bottommost side. The top side of the second heat sink 30 has a second turned hole 30a, and the second turned hole 30a corresponds to the first turned hole 10b of the adjacent first heat sink 10, so as to be able to communicate with the communication channel 20a of the first connecting pipe 21. Thus, the heat-conducting oil can flow between the first heat sink 10 and the second heat sink 30.
[0074] When the second heat sink 30 is located on the top side of the first heat sink 10, it means that the second heat sink 30 is located on the top side of all the first heat sinks 10 of the electric oil radiator, that is, the second heat sink 30 is the heat sink structure at the topmost side.
[0075] It should be noted that the bottom side and the top side of the electric oil radiator respectively refer to the top-bottom direction of the electric oil radiator in the use state.
[0076] In addition, except for the setting form of the turned holes, the other regional structures of the second heat sink 30 can be the same as those of the first heat sink 10 or different, so as to meet the actual needs in different situations.
[0077] In one embodiment, please refer to Figure 6 and Figure 8 , the electric oil radiator includes a third heat sink 40 located on the top side or the bottom side of the first heat sink 10, and a plurality of connectors 20.
[0078] On the side of the first heat sink 10 close to the third heat sink 40, the first heat sink 10 is formed with a plurality of first turned holes 10b corresponding to the connectors 20 one by one.
[0079] On the side close to the first heat sink 10, the third heat sink 40 is formed with a first number of third turned holes 40a, and the first number of third turned holes 40a communicate with the connectors one by one.
[0080] On the side facing away from the first heat sink 10, the third heat sink 40 is formed with a second number of third turned holes 40a; wherein, the second number is less than the first number. Thus, it is convenient for the heat-conducting oil to enter the electric oil radiator through the third turned holes 40a on the side of the third heat sink 40 facing away from the first heat sink 10.
[0081] Specifically, the third heat sink 40 can be located on the top side of all the first heat sinks 10 of the electric oil radiator, that is, the third heat sink 40 is the heat sink structure at the topmost side. It can also be located on the bottom side of all the first heat sinks 10 of the electric oil radiator, that is, the third heat sink 40 is the heat sink structure at the bottommost side.
[0082] On one side of the first heat sink 10 close to the third heat sink 40, the first turned holes 10b are arranged at intervals along the length direction of the first heat sink 10. And the number of the first turned holes 10b is the same as the number of the connecting members 20, and they are in one-to-one correspondence and communication.
[0083] On one side of the third heat sink 40 close to the first heat sink 10, the third heat sink 40 has a plurality of third turned holes 40a, the number of which is the same as the number of the connecting members 20, both being the first quantity, and they are in one-to-one correspondence and communication.
[0084] On the side of the third heat sink 40 facing away from the first heat sink 10, the third heat sink 40 has at least one third turned hole 40a, the number of which is less than the number of the connecting members 20, and the third heat sink 40 is respectively in one-to-one correspondence and communication with one connecting member 20. Thus, the end of at least one connecting member 20 is not formed with a third turned hole 40a and is not communicated with the outside.
[0085] Exemplarily, the third heat sink 40 is located on the top side of the first heat sink 10. The electric oil radiator includes two connecting members 20. Two third turned holes 40a are correspondingly formed on the bottom side of the third heat sink 40, while only one third turned hole 40a is formed on the top side of the third heat sink 40. Thus, only one third turned hole 40a can be provided at the top of the third heat sink 40 to facilitate the heat-conducting oil to enter the electric oil radiator, thereby playing a role in simplifying the structure.
[0086] In one embodiment, each of the first heat sinks 10 has a plurality of first turned holes 10b arranged at intervals along the length direction. The electric oil radiator includes a plurality of connecting members 20, and the connecting members 20 are respectively in one-to-one correspondence with the first turned holes 10b of the first heat sinks 10.
[0087] Specifically, along the length direction, each of the first heat sinks 10 is provided with the same number of a plurality of first turned holes 10b. The first turned holes 10b are arranged at intervals along the length direction and are respectively in corresponding communication with the first turned holes 10b of the adjacent first heat sinks 10 through the connecting members 20. Thus, the flow effect of the heat-conducting oil between the first heat sinks 10 can be improved, and the heating effect of the electric oil radiator can be improved accordingly.
[0088] In one specific embodiment, the manufacturing steps of the electric oil radiator are specifically as follows:
[0089] Step S1: Place a group of first heat sinks 10 on a specific tooling plane.
[0090] Step S2: Insert 2 connecting members 20 into 2 first turned holes 10b at both ends of the first heat sink 10 respectively.
[0091] Step S3: Sheathe 2 copper rings on the two connecting members 20 respectively and sheathe them until they contact the first heat sink 10.
[0092] Step S4: Put another set of the first heat sinks 10 on the connecting piece 20, and the sleeving distance is limited by the tooling.
[0093] Step S5: Repeat the above Steps S2 and S3 to assemble all the copper rings and the first heat sinks 10 in sequence.
[0094] Step S6: Horizontally put the assembled product and the tooling into a vacuum brazing furnace. After high-temperature heating and cooling, a complete housing of an electric oil radiator is formed.
[0095] It should be noted that the above steps can be operated manually or automatically.
[0096] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.
Claims
1. An electric oil radiator, characterized in that, The electric oil radiator includes: A plurality of first radiating fins (10) arranged at intervals, between adjacent first radiating fins (10), at least one side of the first radiating fins (10) that are close to each other has a communication port (10a), and a first turned hole (10b) is formed by extending the side wall of the communication port (10a); A connecting member (20), the connecting member (20) has a communication channel (20a), and adjacent first radiating fins (10) are connected by the connecting member (20) so that the adjacent first turned holes (10b) are communicated through the communication channel (20a).
2. The electric oil radiator according to claim 1, characterized in that, The connecting member (20) includes a first connecting pipe (21) having the communication channel (20a), an oil passing hole (21a) is formed on the pipe wall of the first connecting pipe (21), the first connecting pipe (21) passes through the first turned hole (10b) and is connected to the first radiating fin (10) so that the oil passing hole (21a) is located inside the first radiating fin (10).
3. The electric oil radiator according to claim 2, wherein, The first turned holes (10b) are respectively formed on opposite sides of the first radiating fin (10), and the first connecting pipe (21) penetrates at least one first radiating fin (10) through the first turned hole (10b).
4. The electric oil radiator according to claim 3, wherein The side wall of the first turned hole (10b) and the first connecting pipe (21) are welded by vacuum furnace brazing.
5. The electric oil radiator according to claim 2, wherein In the same first radiating fin (10), a plurality of the oil passing holes (21a) are formed on the pipe wall of the first connecting pipe (21), and the oil passing holes (21a) are arranged at intervals around the circumference of the first connecting pipe (21).
6. The electric oil radiator according to claim 5, characterized in that, In each first radiating fin (10), the distance between adjacent first radiating fins (10) is adjustable.
7. The electric oil radiator according to any one of claims 1-6, characterized in that, The side wall at the communication port (10a) is turned outward to form the first turned hole (10b), and the angle at which the side wall at the communication port (10a) is turned outward is less than or equal to 90°, or the side wall at the communication port (10a) and the circumferential side wall of the connecting member (20) are at least partially in contact.
8. The electric oil radiator according to any one of claims 1-6, characterized in that, The electric oil radiator further includes a second radiating fin (30) located on the top side and / or bottom side of the first radiating fin (10), a partial area on the side of the second radiating fin (30) close to the first radiating fin (10) is open to form a second turned hole (30a), the side of the second radiating fin (30) facing away from the first radiating fin (10) is closed, the first radiating fin (10) has the first turned hole (10b) on the side close to the second radiating fin (30), and the second turned hole (30a) and the adjacent first turned holes (10b) are communicated through the communication channel (20a).
9. The electric oil radiator according to any one of claims 1-6, characterized in that The electric oil radiator includes a third radiating fin (40) located on the top side or bottom side of the first radiating fin (10), and a plurality of the connecting members (20); On the side of the first radiating fin (10) close to the third radiating fin (40), the first radiating fin (10) forms a plurality of first turned holes (10b) corresponding to the connecting members (20) one by one; The third heat sink (40) is formed with a first number of third turned holes (40a) on a side close to the first heat sink (10), and the first number of third turned holes (40a) are connected to the connecting member (20) in a one-to-one correspondence; The third heat sink (40) is formed with a second number of third turned holes (40a) on a side facing away from the first heat sink (10); wherein the second number is less than the first number.
10. The electric oil radiator according to any one of claims 1-6, characterized in that, The connecting member (20) comprises at least one second connecting pipe, the second connecting pipe has the connecting passage (20a), and the second connecting pipe is located between two adjacent first turning holes (10b).
11. The electric oil radiator according to claim 10, wherein, The second connecting tube is a hollow tube body, and the opposite two ends of the hollow tube body are respectively connected to the hole walls of the adjacent first turned holes (10b).
12. The electric oil radiator according to any one of claims 1-6, characterized in that, Each of the first heat sinks (10) has a plurality of first turned holes (10b) arranged at intervals along the length direction, and the electric oil heater comprises a plurality of connecting members (20), wherein the connecting members (20) correspond one-to-one to the first turned holes (10b) of the first heat sinks (10).