WO2023029684A1

WO2023029684A1 - Heat exchange structure, heat exchange integrated apparatus, and engine oil heat exchange system for engine

Info

Publication number: WO2023029684A1
Application number: PCT/CN2022/100810
Authority: WO
Inventors: 李伟杰; 夏苏娥; 丁启乾; 徐健; 张朝兵
Original assignee: 浙江银轮机械股份有限公司
Priority date: 2021-08-30
Filing date: 2022-06-23
Publication date: 2023-03-09
Also published as: CN113530634A; CN113530634B

Abstract

A heat exchange structure, a heat exchange integrated apparatus, and an engine oil heat exchange system for an engine. The heat exchange structure comprises a heat exchange base (110) and a heat exchanger (130); a closed heat exchange cavity is formed between the heat exchange base and a connecting housing (120); the heat exchanger is provided in the heat exchange cavity; the heat exchanger is connected to the heat exchange base; a heat exchange internal flow channel and a stock solution flow channel that are not communicated with each other are formed in the heat exchanger; the heat exchange base is provided with a stock solution inlet (133) and a stock solution outlet (134) that are communicated with the stock solution flow channel, and is further provided with a heat exchange outlet (111) that is communicated with the heat exchange internal flow channel; and a heat exchange cavity outside the heat exchanger is a heat exchange external flow channel, and the heat exchange internal flow channel is communicated with the heat exchange external flow channel. The heat exchange integrated apparatus and the engine oil heat exchange system for the engine both comprise the heat exchange structure. The heat exchange structure, the heat exchange integrated apparatus, and the engine oil heat exchange system for the engine solve, to some extent, the technical problem in the prior art that the heat exchange performance in a small heat exchange space is difficult to satisfy a heat dissipation requirement.

Description

Heat exchange structure and heat exchange integration device and engine oil heat exchange system

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number CN 202111002869.6 and titled "Heat Exchange Structure and Heat Exchange Integrated Device and Engine Oil Heat Exchange System" submitted to the China Patent Office on August 30, 2021, all of which The contents are incorporated by reference in this disclosure.

technical field

The present application relates to the technical field of heat exchange, in particular, to a heat exchange structure, a heat exchange integration device and an engine oil heat exchange system.

Background technique

In the previous design of the oil cooler, the form of the cooler was selected according to the engine body structure and the heat dissipation performance required by the customer; the plate-fin oil cooler and the box-type oil cooler are two parts of the existing oil cooler. a common form.

As shown in Figure 1, the plate-fin oil cooler (also known as water bath oil cooler) is assembled in the water cavity formed by the oil cooler base 1 and the engine block 2; the direction of the arrow in Figure 1 is the coolant with the direction of oil flow. Among them, the cooling liquid flow mode: the cooling liquid flows into the water cavity from the water inlet 6 provided on the engine block 2, passes through the outer space of the oil cooler 3, exchanges heat with the oil inside the oil cooler 3, and then flows from The water outlet 7 on the engine block 2 flows out. Oil flow mode: The oil flows in from the oil inlet 4 of the oil cooler 3 and flows out from the oil outlet 5 .

As shown in Figure 2, the box-type oil cooler (also called an external oil cooler) is independently installed on the base 1 of the oil cooler, and has no direct installation relationship with the engine block, and the coolant flows from the inner space of the oil cooler 3 The cooling fins flow through, exchange heat with the oil and take away the heat of the oil. Wherein, the coolant flows in from the water inlet 6 and flows out from the water outlet 7; the engine oil flows in from the oil inlet 4 and flows out from the oil outlet 5.

However, with the implementation of the National VI emission standards, more systems are integrated into the engine, and the structure is becoming more and more compact. The heat exchange space left by the engine is small, and the existing plate-fin oil cooler and box-type oil cooler are used. When the engine is installed, the heat transfer performance is difficult to meet the heat dissipation requirements. At present, the layout of the engine can only be achieved by sacrificing heat dissipation.

Contents of the invention

The purpose of this application is to provide a heat exchange structure, a heat exchange integration device and an engine oil heat exchange system to solve the problem in the prior art that the heat exchange performance in a small heat exchange space is difficult to meet the heat dissipation requirements. Ask for technical questions.

In order to achieve the above object, the application provides the following technical solutions:

A heat exchange structure configured to be installed on a connection housing, including a heat exchange base and a heat exchanger; an airtight heat exchange cavity is formed between the heat exchange base and the connection housing;

The heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is connected to the heat exchange base;

The heat exchanger is provided with a heat exchange inner channel and a stock solution channel which are not connected to each other; the heat exchange base is provided with a stock solution inlet and a stock solution outlet connected to the stock solution channel, and is also provided with a The heat exchange outlet connected to the heat exchange inner flow channel;

The heat exchange chamber outside the heat exchanger is a heat exchange outer flow channel; the heat exchange inner flow channel communicates with the heat exchange outer flow channel;

A heat exchange inlet communicating with the heat exchange outer flow channel is provided on the heat exchange base and/or the connecting shell.

In any of the above technical solutions, optionally, the heat exchange base and/or the connecting housing is provided with a heat exchange outer channel outlet communicating with the heat exchange outer flow channel.

In any of the above technical solutions, optionally, there are multiple heat exchangers; correspondingly, there are multiple raw liquid inlets, raw liquid outlets, and heat exchange outlets;

The stock solution channel of each heat exchanger communicates with a corresponding one of the stock solution inlets and a corresponding one of the stock solution outlets, and the heat exchange inner flow channel of each of the heat exchangers communicates with a corresponding one of the stock solution outlets. Heat outlet connected.

In any of the above technical solutions, optionally, the relative flow direction of the heat exchange inner flow channel and the raw liquid flow channel is cross-counterflow, cross-flow, parallel-counterflow or parallel-flow.

A heat exchange integrated device includes the heat exchange structure; also includes a thermostat;

The thermostat is connected to the heat exchange base of the heat exchange structure, and the thermostat is configured to monitor the temperature of the raw liquid flowing in from the raw liquid inlet of the heat exchange structure;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the thermostat communicates with the heat exchanger of the heat exchange structure, so that the raw liquid flowing in from the raw liquid inlet passes through the The thermostat and the heat exchanger flow to the raw liquid outlet of the heat exchange structure;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the thermostat communicates with the raw liquid outlet, so that the raw liquid flowing in from the raw liquid inlet passes through the thermostat and flows to The stock solution is exported.

In any of the above technical solutions, optionally, a filter is connected to the heat exchange base;

The filter is arranged between the thermostat and the stock solution outlet;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the raw liquid passes through the thermostat, the heat exchanger and the filter in sequence, and communicates with the raw liquid outlet;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the raw liquid passes through the thermostat and the filter, and communicates with the raw liquid outlet.

In any of the above technical solutions, optionally, a heat exchanger bypass valve is connected to the heat exchange base; the inlet port of the heat exchanger bypass valve communicates with the thermostat and the heat exchange The pipeline between the filter, the outlet end of the heat exchanger bypass valve is connected to the inlet end of the filter; when the raw liquid pressure at the inlet end of the heat exchanger bypass valve is greater than the preset value, the The heat exchanger bypass valve is in an open state to communicate with the thermostat and the filter;

And/or, a filter bypass valve is connected to the heat exchange base; the inlet port of the filter bypass valve communicates with the pipeline between the heat exchanger and the filter, so The outlet end of the filter bypass valve is connected to the raw liquid outlet; when the raw liquid pressure at the inlet end of the filter bypass valve is greater than a preset value, the filter bypass valve is in an open state to communicate The heat exchanger and the raw liquid outlet.

In any of the above technical solutions, optionally, the thermostat includes an inlet end of the thermostat, a heat exchange end of the thermostat and a straight-line end of the thermostat;

The inlet end of the thermostat communicates with the raw liquid inlet, the heat exchange end of the thermostat communicates with the inlet of the raw liquid channel of the heat exchanger, and the straight end of the thermostat communicates with the raw liquid inlet. The inlet port of the filter is connected;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the inlet end of the thermostat communicates with the heat exchange end of the thermostat;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the inlet end of the thermostat communicates with the inline end of the thermostat.

In any of the above technical solutions, optionally, the raw liquid inlet is provided with an inlet check valve;

And/or, the raw liquid outlet is provided with an outlet check valve.

An engine oil heat exchange system, including an engine block; also includes a heat exchange structure, or also includes a heat exchange integration device;

The engine block is the connection housing;

The engine block is sealed and connected to the heat exchange base through a seal.

The beneficial effects of the application mainly lie in:

The heat exchange structure, heat exchange integrated device and engine oil heat exchange system provided by this application are used for heat exchange between the heat exchange medium and the raw liquid. The outer surface of the heat exchanger performs heat exchange, and then flows into the heat exchange inner channel of the heat exchanger, exchanges heat with the raw liquid in the raw liquid channel of the heat exchanger, and flows out from the heat exchange outlet. This heat exchange structure can make full use of the limited space to arrange the flow path of the heat exchange medium, and the heat exchange medium flows through the outer and inner spaces of the heat exchanger successively, so that the heat exchange between the heat exchange medium and the raw liquid is more sufficient, The heat exchange efficiency and the heat exchange performance in a unit space are greatly improved, and it can be used to cool and dissipate engine oil of an engine with a small reserved space for heat exchange.

In order to make the above-mentioned purpose, features and advantages of the present application more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is the structural representation of existing plate-fin oil cooler;

Fig. 2 is the structural representation of existing box type oil cooler;

Figure 3-1 to Figure 3-3 are three structural schematic diagrams of the heat exchange structure provided by the embodiment of the present application;

Fig. 4 is a schematic diagram of the integrated heat exchange device provided by the embodiment of the present application;

Figure 5-1 to Figure 5-5 are structural schematic diagrams of different viewing angles of the integrated heat exchange device provided by the embodiment of the present application;

Figure 6-1 to Figure 6-4 are the flow diagrams of the raw liquid and the heat exchange medium of the heat exchange structure or heat exchange integrated device provided by the embodiment of the present application.

Icons: 1-Oil cooler base; 2-Engine cylinder block; 3-Oil cooler; 4-Oil inlet; 5-Oil outlet; 6-Water inlet; 7-Water outlet;

110-Heat exchange base; 111-Heat exchange outlet; 112-Heat exchange outer channel outlet; 113-Heat exchange inlet; 114-Base stock solution outlet; 115-Base stock solution inlet; 131-Heat exchange medium inlet of heat exchanger; 132-Heat exchange medium outlet of heat exchanger; 133-Heat exchanger raw liquid inlet; 134-Heat exchanger raw liquid outlet; 140-Sealing ring; 210-Thermostat; 220 - filter; 230 - heat exchanger bypass valve; 240 - filter bypass valve; 250 - inlet check valve; 260 - outlet check valve.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", and "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and "overhanging" do not mean that the parts are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

Some implementations of the present application will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Example

This embodiment provides a heat exchange structure, a heat exchange integration device and an engine oil heat exchange system. Please refer to Figure 3-1 to Figure 6-4, Figure 3-1 to Figure 3-3 are three structural schematic diagrams of the heat exchange structure provided by this embodiment, where there is no Set the outlet of the heat exchange outer channel. The connecting shell shown in Figure 3-2 and Figure 3-3 is provided with an outlet of the heat exchange outer channel. The number of heat exchangers shown in Figure 3-3 is 2. For the convenience of displaying the structure, Fig. 3-3 Figure 3-1 to Figure 3-3 only show the flow channel through which the heat exchange medium flows, not the flow channel through which the stock solution flows; the direction of the arrow shown in Figure 3-2 is the flow direction of the heat exchange medium. Figure 4 is a schematic diagram of the integrated heat exchange device provided in this embodiment, and the structure in the dotted frame in the figure is the structure of the integrated heat exchange device; Figure 5-1 to Figure 5-5 are the integrated heat exchange device provided in this embodiment Schematic diagram of the structure from different angles of view, in which Figure 5-1 does not show the connecting shell; the direction of the arrow shown in Figure 5-3 is the flow direction of the heat exchange medium; the cutting direction of Figure 5-4 and Figure 5-5 is for better It clearly shows the structure of thermostat, filter, inlet check valve and outlet check valve. Fig. 6-1 to Fig. 6-4 are flow diagrams of raw liquid and heat exchanging medium in the heat exchanging structure or integrated heat exchanging device provided in this embodiment.

The heat exchange structure provided by this embodiment is used for engine oil cooling, especially for engine oil cooling of an engine with a small reserved space for heat exchange.

Referring to Figure 3-1 to Figure 3-3, the heat exchange structure is configured to be installed on the connection housing 120, including the heat exchange base 110 and the heat exchanger 130; the heat exchange base 110 and the connection housing 120 A closed heat exchange chamber is formed between them; the connection housing 120 is, for example, an engine block or other forms of housing.

The heat exchanger 130 is arranged in the heat exchange chamber, and the heat exchanger 130 is connected to the heat exchange base 110 ; optionally, the heat exchanger 130 is fixedly arranged on the heat exchange base 110 .

The heat exchanger 130 is provided with a heat exchange inner channel and a stock solution channel which are not connected to each other, wherein the medium in the heat exchange inner channel is the heat exchange medium, and the medium in the stock solution channel is the stock solution; the heat exchange base 110 is provided with The stock solution inlet and stock solution outlet connected to the stock solution flow channel are also provided with a heat exchange outlet 111 connected to the heat exchange inner flow channel.

The heat exchange cavity outside the heat exchanger 130 is the heat exchange outer flow channel; the heat exchange inner flow channel communicates with the heat exchange outer flow channel;

The heat exchange base 110 and/or the connection housing 120 is provided with a heat exchange inlet 113 communicating with the heat exchange outer flow channel. That is, the heat exchange base 110 is provided with a heat exchange inlet 113 communicated with the heat exchange outer flow channel, or the connection housing 120 is provided with a heat exchange inlet 113 communicated with the heat exchange outer flow channel, or the heat exchange base 110 and The connecting shells 120 are provided with heat exchange inlets 113 communicating with the heat exchange outer channels.

Optionally, the raw liquid in the raw liquid channel is, for example, engine oil, and may also be other media.

Optionally, the heat exchange medium in the heat exchange inner flow channel and the heat exchange outer flow channel is, for example, cooling water, and may also be other media.

The heat exchange structure described in this embodiment is used for heat exchange between the heat exchange medium and the raw liquid. The heat exchange medium flows into the heat exchange outer flow channel of the heat exchange structure from the heat exchange inlet 113, and first heats up with the outer surface of the heat exchanger 130. exchange, and then flow into the heat exchange inner channel of the heat exchanger 130 , exchange heat with the stock solution in the stock solution channel of the heat exchanger 130 , and flow out from the heat exchange outlet 111 . This heat exchange structure can make full use of the limited space to arrange the flow path of the heat exchange medium, and the heat exchange medium flows through the outer and inner spaces of the heat exchanger 130 successively, so that the heat exchange between the heat exchange medium and the raw liquid is more sufficient , which greatly improves heat exchange efficiency and heat exchange performance per unit space, and can be used to cool and dissipate engine oil for engines with small reserved heat exchange space.

Optionally, the heat exchange medium is driven by a power pump, that is, the power pump drives the heat exchange medium to flow into the heat exchange inlet 113 . The power pump is, for example, the water pump shown in FIG. 4 .

Referring to FIG. 3-2 and FIG. 3-3 , in an optional solution of this embodiment, the heat exchange base 110 and/or the connecting shell 120 are provided with a heat exchange outer channel outlet 112 communicating with the heat exchange outer flow channel. That is, the heat exchange base 110 is provided with a heat exchange outer channel outlet 112 communicating with the heat exchange outer flow channel, or the connection shell 120 is provided with a heat exchange outer channel outlet 112 communicated with the heat exchange outer flow channel, or the heat exchange base 110 A heat exchange outer channel outlet 112 communicating with the heat exchange outer flow channel is provided on the connection housing 120 . Through the outlet 112 of the heat exchange outer channel, the flow rate of the heat exchange medium flowing into the heat exchange inner channel of the heat exchanger 130 can be adjusted, so that the purpose of controlling the temperature of the raw liquid can be achieved by adjusting the flow rate of the heat exchange medium in the heat exchange inner channel, which can make The stock solution is at the best working temperature. In actual work, too high or too low temperature of the stock solution is not conducive to the work of the stock solution.

As shown in Figure 3-2, the heat exchange medium flows into the heat exchange outer channel of the heat exchange structure from the heat exchange inlet 113, and performs the first heat exchange with the outer surface of the heat exchanger 130. After the first heat exchange, the heat exchange medium The heat medium splits, part of it flows out from the outlet 112 of the heat exchange outer channel, and the other part flows into the heat exchange inner flow channel of the heat exchanger 130, and performs a second heat exchange with the raw liquid in the raw liquid flow channel of the heat exchanger 130, and flows out from the heat exchange outlet. 111 outflow. In this heat exchange structure, through the heat exchange medium flowing through the external and internal spaces of the heat exchanger 130 successively, the secondary heat exchange of the heat exchange medium can be realized, so that the heat exchange between the heat exchange medium and the raw liquid is more sufficient, which greatly improves the The heat transfer efficiency and the heat transfer performance in unit space.

Referring to Fig. 3-3, in the optional solution of this embodiment, the number of heat exchangers 130 can be one or more. When there are multiple heat exchangers 130, multiple heat exchangers 130 are arranged in parallel in the cavity.

Specifically, there are multiple heat exchangers 130; correspondingly, there are multiple stock solution inlets, stock solution outlets, and heat exchange outlets 111.

The raw liquid flow channel of each heat exchanger 130 communicates with a corresponding raw liquid inlet and a corresponding raw liquid outlet, and the heat exchange internal flow channel of each heat exchanger 130 communicates with a corresponding heat exchange outlet 111 . By arranging a plurality of heat exchangers 130, it can be used to exchange heat for different raw liquids, and heat exchangers of different volumes can also be arranged according to the reserved heat exchange space to improve the heat exchange capacity of the heat exchange structure.

Referring to FIG. 4 to FIG. 5-5 , this embodiment also provides a heat exchange integrated device, including the heat exchange structure of any of the above optional embodiments; and a thermostat 210 is also included. The thermostat 210 has a temperature sensing function, and can control the flow direction of the stock solution according to the temperature of the stock solution, thereby adjusting the temperature of the stock solution so that the stock solution is at a better working temperature. The raw liquid is driven into the integrated heat exchange device by the oil pump shown in FIG. 4 , for example.

The thermostat 210 is connected to the heat exchange base 110 of the heat exchange structure, and the thermostat 210 is configured to monitor the temperature of the raw liquid flowing in from the raw liquid inlet of the heat exchange structure.

When the temperature of the raw liquid flowing through the thermostat 210 is higher than the preset temperature, the thermostat 210 communicates with the heat exchanger 130 of the heat exchange structure, so that the raw liquid flowing in from the raw liquid inlet passes through the thermostat 210 and the heat exchanger in turn. Device 130, flowing to the raw liquid outlet of the heat exchange structure.

When the temperature of the raw liquid flowing through the thermostat 210 is lower than the preset temperature, the thermostat 210 is connected to the raw liquid outlet, so that the raw liquid flowing in from the raw liquid inlet passes through the thermostat 210 and directly flows to the raw liquid outlet.

The heat exchange integrated device can make full use of the limited space to arrange the flow path of the heat exchange medium, and the heat exchange medium flows through the external and internal spaces of the heat exchanger 130 successively, so that the heat exchange between the heat exchange medium and the raw liquid is more efficient. Sufficiently and greatly improving heat exchange efficiency and heat exchange performance per unit space, it can be used to cool and dissipate engine oil for engines with small reserved space for heat exchange.

The integrated heat exchange device provided in this embodiment includes the above-mentioned heat exchange structure, and the technical features of the heat exchange structure disclosed above are also applicable to the integrated heat exchange device, and the technical features of the above-mentioned disclosed heat exchange structure will not be described repeatedly. . The integrated heat exchange device in this embodiment has the advantages of the heat exchange structure described above, and the advantages of the heat exchange structure disclosed above will not be repeated here.

Referring to FIG. 4 to FIG. 5-5 , in an alternative solution of this embodiment, a filter 220 is connected to the heat exchange base 110 ; impurities in the raw liquid are filtered through the filter 220 .

The filter 220 is arranged between the thermostat 210 and the raw liquid outlet.

When the temperature of the raw liquid flowing through the thermostat 210 is higher than the preset temperature, the raw liquid passes through the thermostat 210, the heat exchanger 130 and the filter 220 in sequence, and communicates with the raw liquid outlet; Through the thermostat 210, the heat exchanger 130 and the filter 220, it flows to the raw liquid outlet of the heat exchange structure.

When the temperature of the raw liquid flowing through the thermostat 210 is lower than the preset temperature, the raw liquid passes through the thermostat 210 and the filter 220 and communicates with the raw liquid outlet. That is, the raw liquid flowing in from the raw liquid inlet passes through the thermostat 210 and the filter 220 in sequence, and flows to the raw liquid outlet.

Referring to Fig. 4 to Fig. 5-5, in an optional solution of this embodiment, a heat exchanger bypass valve 230 is connected to the heat exchange base 110; optionally, the heat exchanger bypass valve 230 is pressure-sensitive element.

The inlet port of the heat exchanger bypass valve 230 is connected to the pipeline between the thermostat 210 and the heat exchanger 130, and the outlet port of the heat exchanger bypass valve 230 is connected to the inlet port of the filter 220; When the raw liquid pressure at the inlet end of the through valve 230 is greater than the preset value, the heat exchanger bypass valve 230 is in an open state to communicate with the thermostat 210 and the filter 220 so that part of the raw liquid directly flows to the A filter 220, thereby reducing the pressure of the raw liquid flowing through the heat exchanger 130 to a certain extent, thereby protecting the heat exchanger 130 to a certain extent;

Referring to Fig. 4 to Fig. 5-5, in the optional solution of this embodiment, a filter bypass valve 240 is connected to the heat exchange base 110; the inlet end of the filter bypass valve 240 is connected to the heat exchanger 130 and the filter 220, the outlet end of the filter bypass valve 240 is connected to the stock solution outlet; that is, the filter bypass valve 240 and the filter 220 are arranged in parallel between the heat exchanger 130 and the stock solution outlet between. Optionally, the filter bypass valve 240 is a pressure sensing element.

When the raw liquid pressure at the inlet end of the filter bypass valve 240 is greater than the preset value, the filter bypass valve 240 is in an open state to connect the heat exchanger 130 with the raw liquid outlet so that part of the raw liquid does not pass through the filter 220 , directly flow to the stock solution outlet.

Optionally, the inlet end of the filter bypass valve 240 communicates with the periphery of the cavity formed between the filter 220 and the heat exchange base 110; optionally, the outlet end of the filter bypass valve 240, It communicates with the cavity between the filter 220 and the stock solution outlet.

In an optional solution of this embodiment, the thermostat 210 includes an inlet end of the thermostat 210 , a heat exchange end of the thermostat 210 , and an inline end of the thermostat 210 .

The inlet end of the thermostat 210 is connected with the raw liquid inlet, the heat exchange end of the thermostat 210 is connected with the inlet of the raw liquid channel of the heat exchanger 130, and the straight discharge end of the thermostat 210 is connected with the inlet port of the filter 220 .

When the temperature of the raw liquid flowing through the thermostat 210 is higher than the preset temperature, the inlet end of the thermostat 210 communicates with the heat exchange end of the thermostat 210, so that the raw liquid inlet communicates with the heat exchanger 130; that is, from the raw liquid inlet The inflowing raw liquid passes through the thermostat 210, the heat exchanger 130 and the filter 220 in sequence, and flows to the raw liquid outlet of the heat exchange structure.

When the temperature of the raw liquid flowing through the thermostat 210 is lower than the preset temperature, the inlet end of the thermostat 210 is connected with the straight-line end of the thermostat 210, so that the raw liquid inlet is directly connected with the filter 220; that is, from the raw liquid The raw liquid flowing into the inlet passes through the thermostat 210 and the filter 220 in sequence, and flows to the raw liquid outlet.

Referring to Fig. 4 to Fig. 5-5, in the optional scheme of this embodiment, the raw liquid inlet is provided with an inlet check valve 250; through the inlet check valve 250, it is used to limit the flow direction of the raw liquid only in and out, from The raw liquid inlet flows to the thermostat 210 in one direction.

Referring to FIG. 4 to FIG. 5-5 , in an optional solution of this embodiment, the raw liquid outlet is provided with an outlet check valve 260 . The outlet check valve 260 is used to restrict the raw liquid from only flowing out, not flowing in, so that the one-way flow of the filter 220 to the raw liquid outlet is realized.

In order to facilitate the understanding of this embodiment, the flow directions of the heat exchange inner flow channel and the raw liquid flow channel in the heat exchange integrated device are illustrated by taking Fig. 5-1 to Fig. 5-3 as an example.

The flow direction of the heat exchange medium: the heat exchange medium flows from the heat exchange inlet 113 of the heat exchange base 110 into the heat exchange outer channel of the heat exchange structure, first exchanges heat with the outer surface of the heat exchanger 130, and then passes through the heat exchanger 130 The heat exchange medium inlet 131 of the heat exchanger flows into the heat exchange inner channel of the heat exchanger 130, and exchanges heat with the stock solution in the stock solution channel of the heat exchanger 130, and the heat exchange medium outlet 132 of the heat exchanger 130 Flow out to the heat exchange outlet 111, and flow out from the heat exchange outlet 111. Optionally, a sealing ring 140 is provided between the heat exchange medium outlet 132 and the heat exchange outlet 111 of the heat exchanger.

The flow direction of the original solution: the original solution flows into the heat exchanger original solution inlet 133 of the heat exchanger 130 from the base original solution outlet 114 of the heat exchange base 110, and flows out from the heat exchanger original solution outlet 134 of the heat exchanger 130 to the heat exchange base 110 stock solution inlet 115 of the base. Optionally, a sealing ring 140 is provided between the stock solution outlet 114 of the base and the stock solution inlet 133 of the heat exchanger. Optionally, a sealing ring 140 is provided between the raw liquid outlet 134 of the heat exchanger and the raw liquid inlet 115 of the base.

In an optional solution of this embodiment, the relative flow direction of the heat exchange internal flow channel and the raw liquid flow channel in the heat exchange structure or heat exchange integrated device is cross-counterflow, cross-flow, parallel-counterflow, or parallel-flow.

As shown in Figure 6-1 to Figure 6-4, the original liquid in the figure is oil, and the heat exchange medium is water. The oil inlet and oil outlet are the inlet and outlet of the original liquid, and the water inlet and water outlet are respectively the heat exchange medium import and export. Figure 6-1 shows cross-counterflow, Figure 6-2 shows cross-flow, Figure 6-3 shows parallel counter-flow, and Figure 6-4 shows parallel and forward-flow. The specific flow direction of the heat exchange inner flow channel and the raw liquid flow channel can be designed according to the body structure of the engine and the heat dissipation performance of the engine.

This embodiment also provides an engine oil heat exchange system, which includes an engine block; and also includes the heat exchange structure of any of the above optional embodiments, or further includes the heat exchange integration device of any of the above optional embodiments.

The engine block is a connection housing 120; the engine block is sealed and connected to the heat exchange base 110 through a seal. The oil heat exchange system of the engine can make full use of the limited space to arrange the flow path of the heat exchange medium, and the heat exchange medium flows through the outer and inner spaces of the heat exchanger 130 successively, so that the heat exchange between the heat exchange medium and the raw liquid The exchange is more sufficient, which greatly improves the heat exchange efficiency and the heat exchange performance in a unit space, and can be used to cool and dissipate the engine oil of an engine with a small reserved space for heat exchange.

Optionally, the sealing element is, for example, a sealing ring.

Optionally, the engine block is provided with a heat exchange inlet 113 and a heat exchange outer channel outlet 112 communicating with the heat exchange outer flow channel.

The engine oil heat exchange system provided in this embodiment includes the above-mentioned heat exchange structure or heat exchange integration device, and the technical features of the heat exchange structure or heat exchange integration device disclosed above are also applicable to the engine oil heat exchange system, The technical features of the above disclosed heat exchange structure or heat exchange integrated device will not be described repeatedly. The engine oil heat exchange system in this embodiment has the advantages of the heat exchange structure or integrated heat exchange device described above, and the advantages of the heat exchange structure or integrated heat exchange device disclosed above will not be repeated here.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

A heat exchange structure configured to be installed on a connecting shell, characterized by comprising a heat exchange base and a heat exchanger; an airtight heat exchange cavity is formed between the heat exchange base and the connecting shell;

The heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is connected to the heat exchange base;

The heat exchanger is provided with a heat exchange inner channel and a stock solution channel which are not connected to each other; the heat exchange base is provided with a stock solution inlet and a stock solution outlet connected to the stock solution channel, and is also provided with a The heat exchange outlet connected to the heat exchange inner flow channel;

The heat exchange chamber outside the heat exchanger is a heat exchange outer flow channel; the heat exchange inner flow channel communicates with the heat exchange outer flow channel;

A heat exchange inlet communicating with the heat exchange outer flow channel is provided on the heat exchange base and/or the connecting shell.
The heat exchange structure according to claim 1, characterized in that, the heat exchange base and/or the connection housing is provided with a heat exchange outer channel outlet communicating with the heat exchange outer flow channel.
The heat exchange structure according to claim 1 or 2, characterized in that there are multiple heat exchangers; correspondingly, the number of the stock solution inlet, the stock solution outlet and the heat exchange outlet is multiple;

The stock solution channel of each heat exchanger communicates with a corresponding one of the stock solution inlets and a corresponding one of the stock solution outlets, and the heat exchange inner flow channel of each of the heat exchangers communicates with a corresponding one of the stock solution outlets. Heat outlet connected.
The heat exchange structure according to claim 1 or 2, characterized in that, the relative flow direction of the heat exchange inner flow channel and the raw liquid flow channel is cross-counterflow, cross-flow, parallel-counterflow or parallel-flow.
A heat exchange integrated device, characterized in that it includes the heat exchange structure according to any one of claims 1-4; it also includes a thermostat;

The thermostat is connected to the heat exchange base of the heat exchange structure, and the thermostat is configured to monitor the temperature of the raw liquid flowing in from the raw liquid inlet of the heat exchange structure;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the thermostat communicates with the heat exchanger of the heat exchange structure, so that the raw liquid flowing in from the raw liquid inlet passes through the The thermostat and the heat exchanger flow to the raw liquid outlet of the heat exchange structure;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the thermostat is connected with the raw liquid outlet, so that the raw liquid flowing in from the raw liquid inlet passes through the thermostat and flows to The stock solution is exported.
The integrated heat exchange device according to claim 5, wherein a filter is connected to the heat exchange base;

The filter is arranged between the thermostat and the stock solution outlet;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the raw liquid passes through the thermostat, the heat exchanger and the filter in sequence, and communicates with the raw liquid outlet;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the raw liquid passes through the thermostat and the filter, and communicates with the raw liquid outlet.
The heat exchange integrated device according to claim 6, wherein a heat exchanger bypass valve is connected to the heat exchange base; the inlet end of the heat exchanger bypass valve communicates with the thermostat and The pipeline between the heat exchangers, the outlet end of the heat exchanger bypass valve is connected to the inlet end of the filter; when the raw liquid pressure at the inlet end of the heat exchanger bypass valve is greater than the preset value , the heat exchanger bypass valve is in an open state to communicate with the thermostat and the filter;

And/or, a filter bypass valve is connected to the heat exchange base; the inlet port of the filter bypass valve communicates with the pipeline between the heat exchanger and the filter, so The outlet end of the filter bypass valve is connected to the raw liquid outlet; when the raw liquid pressure at the inlet end of the filter bypass valve is greater than a preset value, the filter bypass valve is in an open state to communicate The heat exchanger and the raw liquid outlet.
The integrated heat exchange device according to claim 6, wherein the thermostat includes an inlet end of the thermostat, a heat exchange end of the thermostat, and a straight-line end of the thermostat;

The inlet end of the thermostat communicates with the raw liquid inlet, the heat exchange end of the thermostat communicates with the inlet of the raw liquid channel of the heat exchanger, and the straight end of the thermostat communicates with the raw liquid inlet. The inlet port of the filter is communicated;

When the temperature of the raw liquid flowing through the thermostat is higher than the preset temperature, the inlet end of the thermostat communicates with the heat exchange end of the thermostat;

When the temperature of the raw liquid flowing through the thermostat is lower than the preset temperature, the inlet end of the thermostat communicates with the inline end of the thermostat.
The integrated heat exchange device according to claim 5, wherein the raw liquid inlet is provided with an inlet check valve;

And/or, the raw liquid outlet is provided with an outlet check valve.
An engine oil heat exchange system, characterized in that it includes an engine block; and also includes the heat exchange structure according to any one of claims 1-4;

The engine block is the connection housing;

The engine block is sealed and connected to the heat exchange base through a seal.