Oil heater with controllable heating efficiency

Abstract

The application discloses a kind of oil temperature machines with controllable heating efficiency, it is related to oil temperature machine temperature control technical field, including fixed in the oil temperature machine body side respectively installed in the oil temperature machine body oil outlet end and oil inlet end oil tank and oil return tank, first sealing disc is slidably arranged in the oil tank interior self-adapting lifting oil and in stopping heating time self-adapting falling to generate negative pressure and realize cold and hot oil replacement, and second sealing disc is slidably installed in the oil return tank interior and cooperates with first sealing disc to realize channel switching, in the application, in short time at the end of heating, self-adapting will not participate in heat circulation in heating phase cool oil replace hot oil in heated body heating pipeline, not only eliminate the problem of poor heat dissipation caused by heat-conducting oil wrapping heated body, but also cleverly use the high heat absorption ratio of cool oil to accelerate the cooling of heated body, make up the deficiency that oil temperature machine body with high temperature control precision, heat stability and heating efficiency is not sensitive to different heat demand of heated body.

Description

Technical Field

[0001] This invention relates to the field of oil temperature control technology, specifically to an oil temperature controller with controllable heating efficiency. Background Technology

[0002] An oil temperature controller is a mold temperature controller that uses heat transfer oil as the heat transfer medium. It can also be called an oil heater, oil temperature controller, or oil circulation temperature controller. As the name suggests, an oil temperature controller uses heat transfer oil as the heat transfer medium. The oil temperature controller has an oil storage tank. When working, the heat transfer oil enters the system from the oil storage tank and is pumped into the mold or other equipment that needs temperature control by the circulation pump. After the heat transfer oil comes out of the temperature-controlled equipment, it returns to the system. The cycle repeats. The heat transfer oil is heated by the heater. When the temperature probe detects that the medium temperature reaches the set value, the heater stops working. When the temperature is lower than the set value, the heater starts working. When the temperature reaches the set value, it stops working again, and so on.

[0003] Currently, oil temperature controllers on the market have high precision in temperature control, achieving ±1 degree Celsius temperature control. In addition, oil temperature controllers also have advantages such as stable heating and excellent heat preservation effect. They are widely used in industries with high requirements for temperature quality (temperature quality: temperature control accuracy, heat stability, heating efficiency, etc.), such as plastics, rubber products, metal materials, and chemicals.

[0004] From the perspective of the high-quality temperature requirements of the heated medium, the high-temperature control precision, thermal stability, and high heating efficiency of the oil temperature controller are its significant advantages. However, for heated molds, reaction vessels, and other heated bodies that work in conjunction with the oil temperature controller, high thermal stability is both an advantage and a disadvantage. This is because heated molds, reaction vessels, and other heated bodies generally no longer need heating after the mold is formed and the reaction is completed. Instead, they need to be cooled to accelerate mold setting and slow down the reaction. When heating ends, although the oil temperature controller stops heating and pumping heat transfer oil, the heat transfer oil has good thermal stability under high-temperature conditions, and the stopped pumping heat transfer oil still carries a high amount of heat in the oil outlet and return lines. This is equivalent to wrapping the heated molds, reaction vessels, and other heated bodies with a "heat insulation layer," which actually increases the cooling time of the heated bodies. Therefore, the high thermal stability of the oil temperature controller is slightly insufficient in practical applications and needs to be rationally adjusted and improved to achieve more sensitive coordination according to the changing needs of the heated bodies.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing oil temperature controllers with controllable heating efficiency. Summary of the Invention

[0006] This invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different approach. Specifically, the invention aims to offer an oil temperature controller with controllable heating efficiency. This addresses the issue raised in the background where high thermal stability is both an advantage and a disadvantage for heated molds, reaction vessels, and other objects that work in conjunction with the oil temperature controller. Generally, after molding and reaction are complete, these objects no longer require heating; instead, they need cooling to accelerate mold setting and slow the reaction. Although the oil temperature controller stops heating and pumping heat transfer oil at the end of heating, the heat transfer oil maintains good thermal stability at high temperatures, and the stopped pumping still carries significant heat in the oil outlet and return lines. This effectively creates an "insulation layer" around the heated molds and reaction vessels, thus increasing the cooling time of the heated objects.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an oil temperature controller with controllable heating efficiency, comprising an oil temperature controller body, an oil outlet tank and an oil return tank fixed to the side of the oil temperature controller body and respectively installed at the oil outlet end and oil inlet end of the oil temperature controller body, a first sealing disc slidably disposed inside the oil outlet tank that adaptively lifts to deliver oil and adaptively falls back to generate negative pressure when heating stops to realize the replacement of hot and cold oil, and a second sealing disc slidably disposed inside the oil return tank and cooperates with the first sealing disc to realize channel switching;

[0008] Above the return oil tank is a temperature compensation tank for temporarily storing oil, and the temperature compensation tank is connected to the return oil tank through a return bend.

[0009] A fixing plate is sealed at the port where the return bend connects to the return oil tank.

[0010] Each of the first sealing disc, the second sealing disc, and the fixed disc is equipped with an adaptive valve assembly at its center.

[0011] Preferably, the lower end of the oil outlet tank is connected through to the oil outlet end of the oil temperature controller body, and the upper end of the oil outlet tank is equipped with an oil outlet interface.

[0012] One end of the oil return tank is connected to the oil return end of the oil temperature controller body, and the other end of the oil return tank is equipped with an oil return interface.

[0013] Preferably, a counterweight cone is suspended and fixed at the lower end of the first sealing disc, and a first insert is fixed on the inner wall at the upper end of the oil tank.

[0014] Preferably, the lower end of the oil outlet tank is fixed with a bracket for supporting the counterweight cone;

[0015] The protruding end of the first insert corresponds perpendicularly to the valve assembly at the center of the first sealing disc.

[0016] Preferably, a second insert is fixed inside the return oil tank, and a second spring is installed between the second insert and the second sealing plate;

[0017] The protruding end of the second insert corresponds horizontally to the valve assembly at the center of the second sealing disc.

[0018] Preferably, one end of the second spring is welded to the outer wall of the second insert, and the other end of the second spring is fixed to the side surface of the second sealing disc.

[0019] Preferably, a third insert is fixed to the surface of the second sealing disc near the return bend port;

[0020] The protruding end of the third insert corresponds horizontally to the valve assembly at the center of the fixed plate.

[0021] Preferably, the first, second, and third inserts are all provided with gaps at equal angles to allow oil to pass through, and the protruding ends of the first, second, and third inserts are all treated with arc-shaped chamfers.

[0022] The first sealing disc, the second sealing disc, and the fixed disc all have through grooves at their centers that correspond to the proportions of the valve assembly.

[0023] Preferably, the valve assembly includes a cavity groove formed at equal angles on the side wall of the through groove, and a docking valve core is slidably engaged inside the cavity groove;

[0024] The valve assembly also includes a first spring correspondingly disposed in the cavity to provide a restoring force for the docking valve core;

[0025] One end of the first spring is welded to the inner wall of the cavity, and the other end of the first spring is fixed to the end of the connecting valve core.

[0026] Preferably, the plurality of valve cores that are equally angled and distributed inside the through groove are in contact with each other;

[0027] Furthermore, a conical groove is provided at the center of the assembly consisting of several valve cores connected inside the through groove.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The heat transfer oil pump delivers the oil to the lower end of the oil outlet tank, gradually pushing the first sealing plate upward to open the through groove in the center of the first sealing plate. The heat transfer oil below will smoothly enter the upper part of the first sealing plate and pass through the first insert core, entering the heating pipeline through the oil outlet interface and finally flowing back into the space formed between the return oil tank and the second sealing plate. The heat transfer oil entering the return oil tank can only enter through the return bend pipe. Therefore, the heat transfer oil will smoothly pass through the through groove in the center of the fixed plate and be stably injected into the temperature compensation tank for temporary storage through the return bend pipe.

[0030] When the return oil compensation tank is full, the heat transfer oil pushes the second sealing disc to slide horizontally along the return oil tank, and similarly, the through groove at the center of the second sealing disc opens, allowing the heat transfer oil to flow stably back into the oil temperature controller. When heating stops, the first sealing disc begins to release gravitational potential energy and falls naturally, returning to a closed state. At the same time, a negative pressure zone is formed in the upper space of the outlet tank. The negative pressure is used to draw the hot oil back into the upper space of the outlet tank, and the cool oil inside the return oil compensation tank, which has been standing for a long time and does not participate in heat circulation, is reversed and drawn into the gap between the return oil tank and the second sealing disc, and then pumped out through the return oil interface to... In the heating pipeline, the first sealing disc finally settles into negative pressure, at which point the cool oil is pumped into the heating pipeline and stops circulating. This allows the cool oil, which does not participate in heat circulation during the heating phase, to replace the hot oil in the heating pipeline of the heated body within a short time after heating ends. This not only eliminates the problem of poor heat dissipation caused by the heat transfer oil wrapping around the heated body, but also cleverly utilizes the high heat absorption ratio of the cool oil to accelerate the cooling of the heated body. This compensates for the lack of sensitivity in the oil temperature controller body when facing different heat demands of the heated body, which is limited by its high temperature control accuracy, heat stability, and heating efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0033] Figure 3 This is a three-dimensional structural diagram of the oil outlet tank, the temperature recovery compensation tank, and the oil return tank of the present invention.

[0034] Figure 4 This is a schematic diagram of the first three-dimensional structure of the oil tank after it has been cut open according to the present invention.

[0035] Figure 5 This is a schematic diagram of the second three-dimensional structure of the oil tank after it has been cut open according to the present invention.

[0036] Figure 6 This is a schematic diagram of the connection structure between the temperature compensation tank and the oil return tank of the present invention.

[0037] Figure 7 This is a three-dimensional structural diagram of the oil return tank after it has been cut open according to the present invention.

[0038] Figure 8 This is a three-dimensional structural diagram of the connection between the return bend and the third insert of the present invention.

[0039] Figure 9 This is a schematic diagram of the first three-dimensional structure of the third insert and the fixed plate of the present invention.

[0040] Figure 10This is a schematic diagram of the second three-dimensional structure of the third insert of the present invention, which is inserted and mated with the fixed plate.

[0041] In the diagram: 1. Oil temperature controller body; 2. Oil outlet tank; 21. Oil outlet interface; 3. Temperature return compensation tank; 31. Return bend; 32. Fixed plate; 4. Oil return tank; 41. Oil return interface; 5. First sealing plate; 51. Counterweight cone; 52. First insert; 6. Valve assembly; 61. Cavity; 62. First spring; 63. Connecting valve core; 7. Second sealing plate; 71. Second insert; 72. Second spring; 73. Third insert. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 10 The present invention provides a technical solution: an oil temperature controller with controllable heating efficiency, including an oil temperature controller body 1, an oil outlet tank 2 and an oil return tank 4 fixed to the side of the oil temperature controller body 1 and respectively installed at the oil outlet end and oil inlet end of the oil temperature controller body 1, a first sealing disc 5 slidably disposed inside the oil outlet tank 2 to adaptively lift and deliver oil and adaptively fall back to generate negative pressure to realize the replacement of hot and cold oil, and a second sealing disc 7 slidably disposed inside the oil return tank 4 and cooperates with the first sealing disc 5 to realize channel switching;

[0044] Above the return oil tank 4, a temperature compensation tank 3 for temporarily storing oil is provided, and the temperature compensation tank 3 is connected to the return oil tank 4 through a return bend 31.

[0045] A fixing plate 32 is fixedly sealed at the port where the return bend 31 connects to the return oil tank 4.

[0046] A self-adaptive valve assembly 6 is installed at the center of the first sealing disc 5, the second sealing disc 7, and the fixed disc 32.

[0047] In this embodiment, it should be noted that when the oil temperature controller body 1 is working, the heat transfer oil heated inside it is pumped out from the oil outlet, transported through the heat transfer oil pipeline to the heated body (heating mold and reaction vessel, etc.), and then circulated through the inner cavity of the heated body mold or the wall of the reaction vessel before returning to the oil temperature controller body 1 from the oil return end. Since the returned heat transfer oil loses heat, it needs to be continuously heated to maintain the temperature of the heat transfer oil. During the heating period, this cycle is repeated, and the pumping continues. The oil temperature controller body 1 only needs to accurately control the temperature of the circulating heat transfer oil to achieve heating efficiency control of the heated body. It should be noted that the circulation method of the heat transfer oil on the heated body is related to the properties and shape of the heated body and is existing technology, which will not be elaborated on in this invention.

[0048] The lower end of the oil outlet tank 2 is connected to the oil outlet end of the oil temperature controller body 1, and the upper end of the oil outlet tank 2 is equipped with an oil outlet port 21.

[0049] One end of the oil return tank 4 is connected to the oil return end of the oil temperature controller body 1, and the other end of the oil return tank 4 is equipped with an oil return interface 41.

[0050] In this embodiment, the oil outlet port 21 connected to the upper end of the oil outlet tank 2 is the oil outlet end of the oil temperature controller body 1, and the oil return port 41 connected to the end of the oil return tank 4 is the oil return end of the oil temperature controller body 1. The oil outlet end, the output pipeline, the heated body, the oil return end, and the oil temperature controller body 1 form a complete closed loop. Both the oil outlet port 21 and the oil return port 41 are designed for plug-in connection. They can only be connected after the output pipeline is stably connected. In the disconnected state, both the oil outlet port 21 and the oil return port 41 are in a closed state. This is the prior art, and the present invention will not elaborate further.

[0051] The lower end of the first sealing disc 5 is suspended and fixed with a counterweight cone 51, and the inner wall of the upper end of the oil tank 2 is fixed with a first insert 52.

[0052] In this embodiment, the counterweight cone 51 serves two purposes. First, it acts as a counterweight to allow the first sealing disc 5 to fall naturally without hydraulic pressure (the weight of the counterweight cone 51 is greater than the sum of the elastic force of the second spring 72 and the frictional resistance of the second sealing disc 7, so as to ensure that the negative pressure suction generated when the counterweight cone 51 falls can reset the second sealing disc 7). Second, the counterweight cone 51 is actually a flow-blocking structure that can prevent the instability of alternating opening and closing of the through groove caused by the direct impact of the heat transfer oil on the through groove after the center of the first sealing disc 5 is penetrated. Therefore, the design is necessary.

[0053] The lower end of the oil tank 2 has a bracket fixed inside to support the counterweight cone 51;

[0054] The protruding end of the first insert 52 corresponds perpendicularly to the valve assembly 6 at the center of the first sealing disc 5.

[0055] In this embodiment, when the heating ends, the pumping of heat transfer oil by the oil temperature controller 1 stops, that is, the hydraulic pressure of the heat transfer oil on the first sealing disc 5 is released. Under the action of gravity, the first sealing disc 5 will fall naturally and slowly press the heat transfer oil in the lower part of the oil tank 2 back into the oil temperature controller 1 and fall naturally onto the bracket and finally stabilize.

[0056] The return oil tank 4 has a second insert 71 fixed inside, and a second spring 72 is installed between the second insert 71 and the second sealing plate 7.

[0057] The protruding end of the second insert 71 corresponds horizontally to the valve assembly 6 at the center of the second sealing disc 7.

[0058] In this embodiment, the second spring 72 is designed to press the second sealing disc 7 against the valve assembly 6 at the center of the opening fixing disc 32 and to stably insert the third insert 73 on the side of the second sealing disc 7 into the valve assembly 6 at the center of the opening fixing disc 32.

[0059] One end of the second spring 72 is welded to the outer wall of the second insert 71, and the other end of the second spring 72 is fixed to the side surface of the second sealing disc 7.

[0060] The third insert 73 is fixed on the surface of the second sealing disc 7 near the port of the return bend 31;

[0061] The protruding end of the third insert 73 corresponds horizontally to the valve assembly 6 at the center of the fixed plate 32.

[0062] In this embodiment, in the initial state, the third insert 73 is inserted into the valve assembly 6 at the center of the fixed plate 32, so that the fixed plate 32 initially keeps the central through slot open. Therefore, the heat transfer oil in the external pipeline system will directly pass through the fixed plate 32 after entering the return oil tank 4 and be injected into the temperature compensation tank 3 by the return bend 31 for temporary storage, without participating in the subsequent heat transfer oil circulation. When the temperature compensation tank 3 is full, the heat transfer oil is continuously injected into the return oil tank 4, forcing the second sealing plate 7 to move horizontally and close the fixed plate 32. As the second sealing plate 7 continues to move, the valve assembly 6 at the center of the second sealing plate 7 will eventually be opened, and the heat transfer oil will smoothly pass through the second sealing plate 7 and return to the oil temperature controller body 1, forming a circulation.

[0063] The first insert 52, the second insert 71 and the third insert 73 are all provided with gaps at equal angles to allow oil to pass through, and the protruding ends of the first insert 52, the second insert 71 and the third insert 73 are all treated with arc chamfering.

[0064] The first sealing disc 5, the second sealing disc 7, and the fixed disc 32 all have through grooves at their centers that correspond proportionally to the valve assembly 6.

[0065] In this embodiment, the first insert 52, the second insert 71, and the third insert 73 are respectively the opening and closing keys of the valve assembly 6 at the center of the first sealing disc 5, the second sealing disc 7, and the fixed disc 32. The first insert 52, the second insert 71, and the third insert 73 are engaged with the corresponding valve assembly 6.

[0066] The valve assembly 6 includes a cavity 61 that is opened at equal angles on the side wall of the through groove, and a docking valve core 63 is slidably engaged inside the cavity 61;

[0067] Valve assembly 6 also includes a first spring 62 disposed in cavity 61 to provide a restoring force for docking valve core 63;

[0068] One end of the first spring 62 is welded to the inner wall of the cavity 61, and the other end of the first spring 62 is fixed to the end of the docking valve core 63.

[0069] Several valve cores 63, which are evenly distributed inside the through groove, fit together with each other;

[0070] Furthermore, a conical groove is provided at the center of the assembly consisting of several docking valve cores 63 inside the through groove.

[0071] In this embodiment, when the first insert 52, the second insert 71, and the third insert 73 are far away from the corresponding valve assembly 6, the adjacent docking valve cores 63 are fitted together and the through groove is blocked by the pressing action of the first spring 62 inside the cavity 61. When the protruding ends of the first insert 52, the second insert 71, and the third insert 73 with arc chamfering treatment come into contact with the conical groove formed at the center of the docking valve core 63, the vertical contact and compression of the arc surfaces will generate a horizontal expansion force that is fed back to the docking valve core 63, thereby enabling the docking valve cores 63 in the corresponding through groove to open synchronously.

[0072] Working principle: When using this oil temperature controller with controllable heating efficiency, first connect the oil outlet 21 to the oil inlet of the heating pipe of the heated body, and then connect the oil return 41 to the oil return of the heating pipe of the heated body to form a closed loop. (To prevent air inside the heated pipe from affecting the continuity of the heat transfer oil supply in the oil temperature controller body 1, oil can be manually injected into the heating pipe to remove air during the first use. After stable operation, the oil temperature controller body 1 and the heated body will generally form a stable connection and will not be easily plugged or unplugged. There will be no gas in the closed loop. Oil injection and air removal are only required during initial use or maintenance disconnection.)

[0073] Next, start the oil temperature controller 1 and set the preset oil temperature to the required heating temperature of the heated object using the control panel, such as... Figure 4 and Figure 5The oil temperature controller body 1, as shown, pumps heated heat transfer oil to the lower end of the oil outlet tank 2. Under oil pressure, the first sealing disc 5, which is in a closed state, is gradually pushed upwards. When the first sealing disc 5 contacts the protruding end of the first insert 52, due to the continued action of oil pressure, the protruding end of the first insert 52 will correspondingly and synchronously squeeze the conical groove at the center of the four sets of docking valve cores 63 on the first sealing disc 5. This forces the four sets of docking valve cores 63 to gradually retract into the corresponding cavity grooves 61, thereby opening the through groove at the center of the first sealing disc 5 (see reference). Figure 9 and Figure 10 (The valve assembly 6 at the center of the first sealing disc 5, the second sealing disc 7, and the fixed disc 32 has the same structure, differing only in proportion.) At this time, the heat transfer oil below will smoothly enter the top of the first sealing disc 5 and pass through the first insert 52, entering the heating pipe through the oil outlet 21 and finally flowing back to the... Figure 6 and Figure 7 The oil is then steadily injected into the space between the inside of the return oil tank 4 and the second sealing plate 7 through the return oil interface 41 shown.

[0074] like Figure 8 and Figure 9 As shown, in the initial state, the third insert 73 is stably inserted into the valve assembly 6 inside the fixed plate 32. Similarly, the through slot at the center of the fixed plate 32 remains open. The heat transfer oil entering the return oil tank 4 can only enter through the return bend 31. Therefore, the heat transfer oil will pass smoothly through the through slot at the center of the fixed plate 32 and be stably injected into the temperature compensation tank 3 for temporary storage by the return bend 31.

[0075] As the temperature compensation tank 3 gradually fills, the heat transfer oil continues to be injected. At this time, the heat transfer oil will no longer enter the temperature compensation tank 3. Instead, the second sealing disc 7 is pushed horizontally along the return oil tank 4 by hydraulic pressure, compressing the second spring 72 and gradually approaching the second insert 71. As the second sealing disc 7 moves horizontally away, the third insert 73 is gradually pulled out from the valve assembly 6 in the center of the fixed disc 32, and the central through groove of the fixed disc 32 is adaptively closed, thereby locking the heat transfer oil inside the temperature compensation tank 3 to prevent large heat exchange. With the continuous hydraulic pressure, the second sealing disc 7 continues to move horizontally until it presses against the protruding end of the second insert 71 and forces the valve assembly 6 in the center of the second sealing disc 7 to open. At this time, the through groove in the center of the second sealing disc 7 opens, allowing the heat transfer oil to stably pass through the second sealing disc 7 and the second insert 71 and flow back to the oil temperature controller body 1. At this time, the start-up operation is completed, and the heat transfer oil will continue to circulate according to the above cycle and stably conduct the temperature to the heated body.

[0076] When the heated body needs to stop heating and cool down, the oil temperature controller 1 is shut off. The oil temperature controller 1 stops heating the heat transfer oil and simultaneously stops pumping it. Once the heat transfer oil stops pumping, the hydraulic system stops circulating. When the hydraulic system stops, the gravitational potential energy of the first sealing disc 5 is released. Under the action of gravity, the first sealing disc 5 will naturally fall along the inner wall of the oil outlet tank 2, returning the lower part of the oil to the oil temperature controller 1. After the first sealing disc 5 falls a certain distance, the connection between the first sealing disc 5 and the first insert 52 is released, meaning the first sealing disc 5 returns to a closed state. As the first sealing disc 5 continues to fall, a negative pressure zone is formed in the upper space of the oil outlet tank 2. This negative pressure draws the hot oil from the external heating pipes back into the upper space of the oil outlet tank 2. Simultaneously, because negative pressure is transmissible in the oil system, the second sealing disc 7, under the combined effect of the negative pressure suction and the return force of the second spring 72 after the hydraulic pressure disappears, will quickly return to its original position. Figure 6 As shown, the central slot of the fixed plate 32 is opened again by the abutment and compression of the third insert 73. At this time, the first sealing plate 5 continues to fall and the negative pressure continues to be generated, so the hot oil is successfully drawn back to the upper space of the oil outlet tank 2, and the cool oil (relatively speaking) inside the temperature compensation tank 3, which has been standing for a long time and does not participate in the heat circulation, is reversed and drawn into the gap between the return oil tank 4 and the second sealing plate 7, and then sent to the heating pipeline through the return oil interface 41. Finally, the first sealing plate 5 is as follows. Figure 4 and Figure 5 When the negative pressure ends as shown, the cool oil is pumped into the heating pipe and stops circulating. This allows the cool oil, which does not participate in the heat circulation during the heating phase, to replace the hot oil in the heating pipe of the heated body within a short time after the heating ends. This not only eliminates the problem of poor heat dissipation caused by the heat transfer oil wrapping around the heated body, but also cleverly utilizes the high heat absorption ratio of the cool oil to accelerate the cooling of the heated body. This compensates for the lack of sensitivity in the oil temperature controller body 1 when facing different heat demands of the heated body, which is insufficient in terms of high temperature control accuracy, heat stability, and heating efficiency.

[0077] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An oil temperature controller with controllable heating efficiency, comprising an oil temperature controller body (1), characterized in that: It also includes an oil outlet tank (2) and an oil return tank (4) fixed to the side of the oil temperature controller body (1) and respectively installed at the oil outlet end and oil inlet end of the oil temperature controller body (1); a first sealing disc (5) that is slidably installed inside the oil outlet tank (2) to adaptively lift and deliver oil and adaptively fall back to generate negative pressure when heating stops, thereby realizing the replacement of hot and cold oil; and a second sealing disc (7) that is slidably installed inside the oil return tank (4) and cooperates with the first sealing disc (5) to realize channel switching. Above the return oil tank (4) is a return temperature compensation tank (3) for temporarily storing oil, and the return temperature compensation tank (3) is connected to the return oil tank (4) through a return bend (31). A fixing plate (32) is fixed at the port where the return bend (31) connects to the return oil tank (4). A self-adaptive valve assembly (6) is installed at the center of the first sealing disc (5), the second sealing disc (7), and the fixed disc (32). The lower end of the oil outlet tank (2) is connected to the oil outlet end of the oil temperature controller body (1), and the upper end of the oil outlet tank (2) is equipped with an oil outlet interface (21). One end of the return oil tank (4) is connected to the return oil end of the oil temperature controller body (1), and the other end of the return oil tank (4) is equipped with a return oil interface (41). The lower end of the first sealing disc (5) is fixed with a counterweight cone (51) and the inner wall of the upper end of the oil outlet (2) is fixed with a first insert (52). The lower end of the oil outlet (2) is fixed with a bracket for receiving the counterweight cone (51). The protruding end of the first insert (52) is perpendicularly aligned with the valve assembly (6) at the center of the first sealing disc (5); The return oil tank (4) is fixed with a second insert (71), and a second spring (72) is installed between the second insert (71) and the second sealing plate (7). The protruding end of the second insert (71) corresponds horizontally to the valve assembly (6) at the center of the second sealing plate (7). One end of the second spring (72) is welded to the outer wall of the second insert (71), and the other end of the second spring (72) is fixed to the side surface of the second sealing plate (7). A third insert (73) is fixed on the side surface of the second sealing plate (7) near the port of the return bend (31). The protruding end of the third insert (73) corresponds horizontally to the valve assembly (6) at the center of the fixed plate (32). The first insert (52), the second insert (71) and the third insert (73) are all provided with gaps at equal angles to allow oil to pass through, and the protruding ends of the first insert (52), the second insert (71) and the third insert (73) are all treated with arc chamfering. The center of the first sealing plate (5), the second sealing plate (7) and the fixed plate (32) are all provided with through grooves that correspond to the proportion of the valve assembly (6). The valve assembly (6) includes a cavity (61) opened at equal angles on the side wall of the through groove, and a docking valve core (63) is slidably engaged inside the cavity (61). The valve assembly (6) also includes a first spring (62) disposed in the cavity (61) to provide a restoring force for the docking valve core (63); One end of the first spring (62) is welded to the inner wall of the cavity (61), and the other end of the first spring (62) is fixed to the end of the docking valve core (63).

2. The oil temperature controller with controllable heating efficiency according to claim 1, characterized in that: Several valve cores (63) that are evenly distributed inside the through groove are fitted together; Furthermore, a conical groove is provided at the center of the assembly consisting of several docking valve cores (63) inside the through groove.

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