Heat exchangers and vehicles

By designing the bends and straight sections of the oil guide assembly and using compression fittings, the problems of space occupation and oil leakage during hydraulic steel pipe connection were solved, achieving a compact connection and aesthetically pleasing effect.

CN224435084UActive Publication Date: 2026-06-30LOVOL HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LOVOL HEAVY IND CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing hydraulic steel pipes require 90-degree bending and welding during connection, which takes up space, increases the number of oil leakage points, and is unsightly.

Method used

An oil guiding assembly was designed, including a bent section and a straight section, and adopts a compression fitting sealing joint structure, which reduces the space occupied and lowers the risk of oil leakage. Through the design of the bent section and the straight section, the size of the oil guiding assembly is smaller than the installation gap, realizing a compact connection between the air conditioning condenser and the hydraulic oil radiator.

Benefits of technology

It saves connection space, reduces oil leakage points, and improves the aesthetics and reliability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a heat exchanger and a vehicle. The heat exchanger includes an air conditioning condenser, a hydraulic oil cooler, and an oil guiding assembly. An installation gap with a first preset size is provided between the air conditioning condenser and the hydraulic oil cooler. The oil guiding assembly has a second preset size smaller than the first preset size, meaning that the height and length of the oil guiding assembly are both smaller than the height and length of the installation gap. In other words, when the oil guiding assembly is installed in the installation gap, the installation gap of the first preset size between the air conditioning condenser and the hydraulic oil cooler remains unchanged. In other words, the guiding assembly of this application has a smaller size, enabling a smaller installation gap to be provided between the air conditioning condenser and the hydraulic oil cooler, thus saving space.
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Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and more particularly to heat exchangers and vehicles. Background Technology

[0002] When existing hydraulic steel pipes are connected to other hydraulic components, if the connection space is limited and the pipe needs to be bent at a 90-degree angle, the space occupied is increased due to the limitations of the pipe bending die specifications and connectors. Furthermore, a welded pipe of the same specification needs to be welded to the steel pipe, and a connecting nut needs to be installed. This connection method not only occupies space and increases the number of potential oil leaks, but also wastes costs and is aesthetically unappealing.

[0003] Therefore, there is an urgent need for heat exchangers and vehicles to address, to some extent, the technical problems existing in the current technology. Utility Model Content

[0004] The purpose of this application is to provide a heat exchanger and a vehicle that saves space and reduces oil leaks to a certain extent.

[0005] This application provides a heat exchanger, including an air conditioning condenser, a hydraulic oil radiator, and an oil guiding assembly;

[0006] An installation gap with a first preset size is provided between the air conditioner condenser and the hydraulic oil radiator;

[0007] The oil guiding assembly is connected to the hydraulic oil radiator; the oil guiding assembly has a second preset size smaller than the first preset size, and when the oil guiding assembly is installed in the installation gap, the installation gap between the air conditioner condenser and the hydraulic oil radiator of the first preset size remains unchanged.

[0008] In the above technical solution, the oil guiding assembly further includes a bent portion and a straight portion communicating with the bent portion;

[0009] The dimension of the bent portion in the first direction is smaller than the dimension of the installation gap in the first direction, and the sum of the dimensions of the bent portion and the straight portion in the second direction is smaller than the dimension of the installation gap in the second direction, such that the second preset dimension is smaller than the first preset dimension.

[0010] In the above technical solution, the bent portion further includes a vertical tube, a horizontal straight tube, a first sealing ring, and a first connecting nut;

[0011] The vertical pipe and the horizontal straight pipe are connected by a 90° arc transition, so that the vertical pipe and the horizontal straight pipe form an elbow joint, and the distance between the side wall of the horizontal straight pipe away from the vertical pipe and the end of the vertical pipe away from the horizontal straight pipe is the dimension of the bend in the first direction.

[0012] An installation groove is provided on the vertical pipe at a first preset position, and the first sealing ring is disposed in the installation groove;

[0013] The first connecting nut is disposed on the vertical pipe and can be connected to one end of the hydraulic oil radiator.

[0014] In the above technical solution, the vertical pipe further includes a first section connected to the horizontal straight pipe and a second section connected to the end of the first section that is away from the horizontal straight pipe;

[0015] The second segment is a tapered structure that gradually narrows from the first segment to the second segment;

[0016] The second segment has a mounting groove for installing the first sealing ring.

[0017] In the above technical solution, the bent portion further includes a retaining ring;

[0018] A limiting groove is provided at one end of the first segment near the second segment, and the retaining ring is disposed in the limiting groove so as to limit the first connecting nut to the vertical pipe.

[0019] In the above technical solution, the straight section further includes a straight pipe, a connecting pipe communicating with the straight pipe, and a connector;

[0020] The end of the straight pipe opposite to the connecting pipe is connected to the horizontal straight pipe; the end of the connecting pipe opposite to the straight pipe is connected to the other end of the hydraulic oil radiator through the connector.

[0021] The lengths of the horizontal straight pipe, the straight pipe, and the connecting pipe are equal to the dimensions of the bent portion in the second direction.

[0022] In the above technical solution, the end of the connecting pipe that faces away from the straight pipe is a limiting section;

[0023] The limiting segment has a tapering structure from the horizontal straight pipe to the straight pipe, and the diameter of the limiting segment near the end of the straight pipe is larger than the diameter of the straight pipe.

[0024] The connector includes a second connecting nut and a second sealing ring; the second sealing ring is disposed in the limiting section.

[0025] In the above technical solution, the horizontal straight pipe is further connected to the straight pipe by welding.

[0026] In the above technical solution, the straight pipe and the connecting pipe are further connected by welding.

[0027] This application also provides a vehicle including the aforementioned heat exchanger.

[0028] Compared with the prior art, this application has the following beneficial effects:

[0029] This application provides heat exchangers, including air conditioning condensers, hydraulic oil radiators, and oil guiding assemblies;

[0030] An installation gap with a first preset size is provided between the air conditioner condenser and the hydraulic oil radiator;

[0031] The oil guiding assembly has a second preset size smaller than the first preset size; that is, the height and length of the oil guiding assembly are both smaller than the height and length of the installation gap. In other words, when the oil guiding assembly is installed in the installation gap, there is still an installation gap of the first preset size between the air conditioning condenser and the hydraulic oil radiator. In other words, the guiding assembly of this application has a smaller size, enabling a smaller installation gap to be formed between the air conditioning condenser and the hydraulic oil radiator, thus saving space.

[0032] This application also provides a vehicle including the aforementioned heat exchanger. Therefore, it possesses all the beneficial effects of a heat exchanger, which will not be elaborated upon here. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A cross-sectional view of the heat exchanger provided in this application from a first-view perspective;

[0035] Figure 2 A cross-sectional view of the heat exchanger provided in this application from a second perspective;

[0036] Figure 3 A schematic diagram of the oil guide assembly in the heat exchanger provided in this application;

[0037] Figure 4 A top view of the oil guide assembly in the heat exchanger provided in this application;

[0038] Figure 5 A side view of the oil guide assembly in the heat exchanger provided in this application;

[0039] Figure 6 An exploded view of the oil guide assembly in the heat exchanger provided in this application.

[0040] Attached reference numerals: 1-Air conditioning condenser; 101-Vehicle body; 102-Bracket; 103-Hydraulic oil pipeline;

[0041] 2-Hydraulic oil cooler; 201-Installation clearance;

[0042] 3-Oil guiding assembly; 301-Bend; 302-Straight section; 303-First direction; 304-Second direction; 305-Vertical pipe; 306-Horizontal straight pipe; 307-First sealing ring; 308-First connecting nut; 309-Mounting groove; 310-First section; 311-Second section; 312-Limiting groove; 313-Retaining ring; 314-Straight pipe; 315-Connecting pipe; 316-Connector; 317-Limiting section; 318-Second connecting nut; 319-Second sealing ring. Detailed Implementation

[0043] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0044] Example 1

[0045] When connecting existing hydraulic steel pipes to other hydraulic components, if the connection space is limited, the steel pipe needs to be bent at a 90-degree angle. After bending, a welded connecting pipe of the same specification needs to be welded, and then a connecting nut needs to be installed. However, this connection method occupies space and increases the number of oil leakage points. Based on this, this application provides a heat exchanger, which is described below in conjunction with... Figures 1-6 Detailed description.

[0046] This application provides a heat exchanger, including an air conditioning condenser 1, a hydraulic oil radiator 2, and an oil guiding assembly 3; wherein, the air conditioning condenser 1 and the hydraulic oil radiator 2 are both mounted on a bracket 102 of the vehicle body 101. The hydraulic oil radiator 2 is also connected to the bracket 102 via a hydraulic oil pipe 103. Notably, the hydraulic oil pipe 103 can be connected to other components via the bracket 102, thereby enabling the flow of hydraulic oil within the system.

[0047] Specifically, combined Figure 1 and Figure 2 As shown, an installation gap 201 with a first preset dimension is provided between the air conditioner condenser 1 and the hydraulic oil radiator 2. Here, the first preset dimension refers to the height dimension and the length dimension.

[0048] Specifically, combined Figure 1 and Figure 2As shown, the oil guiding assembly 3 is connected to the hydraulic oil cooler 2; further, one end of the oil guiding assembly 3 is connected to the hydraulic oil cooler 2, and the other end passes through the hydraulic oil cooler 2 and is connected to other components. When the oil pressure in the hydraulic oil cooler 2 increases, the hydraulic oil can be guided to other components through the oil guiding assembly 3. For example, in winter, the viscosity of the hydraulic oil increases due to the temperature, causing the oil pressure in the hydraulic oil cooler 2 to increase. To prevent the hydraulic oil cooler 2 from being damaged by high pressure, the oil can be guided to other components through the oil guiding assembly 3, bypassing the hydraulic oil cooler 2.

[0049] Specifically, combined Figure 1 and Figure 2 As shown, the oil guiding assembly 3 has a second preset size smaller than the first preset size, meaning that the height and length of the oil guiding assembly 3 are both smaller than the height and length of the installation gap 201. In other words, when the oil guiding assembly 3 is installed in the installation gap 201, the installation gap 201 between the air conditioning condenser 1 and the hydraulic oil radiator 2 is the first preset size. In other words, the guiding assembly of this application has a smaller size, enabling a smaller installation gap 201 to be formed between the air conditioning condenser 1 and the hydraulic oil radiator 2, thus saving space. This avoids the need to adjust the size of the installation gap 201 even if the guiding assembly has a larger size.

[0050] In actual use, the size of the above-mentioned installation gap 201 can be controlled within 15mm.

[0051] In this embodiment, further, combined with Figures 3-6 As shown, the oil guiding assembly 3 includes a bent portion 301 and a straight portion 302 communicating with the bent portion 301. The dimension of the bent portion 301 in the first direction 303 is smaller than the dimension of the mounting gap 201 in the first direction 303, and the combined dimensions of the bent portion 301 and the straight portion 302 in the second direction 304 are smaller than the dimension of the mounting gap 201 in the second direction 304, such that the second preset dimension is smaller than the first preset dimension.

[0052] Combination Figure 3 As shown, the first direction 303 refers to the vertical direction, which is also the height direction. The second direction 304 refers to the horizontal direction, which is also the length direction.

[0053] Furthermore, it is still a combination Figures 3-6 As shown, the bending section 301 includes a vertical pipe 305, a horizontal straight pipe 306, a first sealing ring 307, and a first connecting nut 308. The vertical pipe 305 extends along a first direction 303, and the horizontal straight pipe 306 extends along a second direction 304. The vertical pipe 305 and the horizontal straight pipe 306 are connected by a 90° arc transition, so that the vertical pipe 305 and the horizontal straight pipe 306 form an elbow joint.

[0054] Furthermore, the distance from the side wall of the horizontal straight pipe 306 away from the vertical pipe 305 to the end of the vertical pipe 305 away from the horizontal straight pipe 306 is the dimension of the bent portion 301 in the first direction 303. That is, the distance from the side wall of the horizontal straight pipe 306 away from the vertical pipe 305 to the end of the vertical pipe 305 away from the horizontal straight pipe 306 is the dimension in the height direction of the bent portion 301.

[0055] Furthermore, a mounting groove 309 is provided on the vertical pipe 305 at a first preset position, and a first sealing ring 307 is disposed in the mounting groove 309; optionally, the first sealing ring 307 is an O-ring. When the bent portion 301 is connected to the fittings on the hydraulic oil cooler 2, the first sealing ring 307 plays a sealing role to prevent oil leakage through the connection between the vertical pipe 305 and the fittings on the hydraulic oil cooler 2.

[0056] In addition, the first connecting nut 308 is provided on the vertical pipe 305 and can be connected to one end of the hydraulic oil cooler 2.

[0057] Further integration Figure 4 As shown, the vertical pipe 305 includes a first section 310 connected to a horizontal straight pipe 306 and a second section 311 connected to one end of the first section 310 facing away from the horizontal straight pipe 306. The second section 311 is a tapered structure that gradually narrows from the first section 310 to the second section 311. The second section 311 has a mounting groove 309 for installing a first sealing ring 307.

[0058] Further integration Figure 4 As shown, the bent portion 301 also includes a retaining ring 313; a limiting groove 312 is provided at one end of the first segment 310 near the second segment 311, and the retaining ring 313 is disposed in the limiting groove 312 so as to limit the first connecting nut 308 to the vertical tube 305 and prevent the first connecting nut 308 from falling off the vertical tube 305.

[0059] The structure of the aforementioned vertical pipe 305, first sealing ring 307, and first connecting nut 308 is equivalent to a type of existing compression fitting. A connection gap is formed between the first connecting nut 308 and the second section 311. In actual use, the fittings on the hydraulic oil cooler 2 can be inserted into the gap formed between the first connecting nut 308 and the second section 311, and the outer wall of the fittings on the hydraulic oil cooler 2 is also provided with external threads that are compatible with the first connecting nut 308. This achieves a threaded connection between the first connecting nut 308 and the fittings on the hydraulic oil cooler 2. Furthermore, since the second section 311 is also provided with the first sealing ring 307, when the fittings on the hydraulic oil cooler 2 are inserted into the gap, they will press the first sealing ring 307, thereby achieving a sealed connection between the bent portion 301 and the fittings on the hydraulic oil cooler, thus preventing oil leakage.

[0060] In this embodiment, combined with Figure 5 and Figure 6 As shown, the straight section 302 includes a straight pipe 314, a connecting pipe 315 welded to the straight pipe 314, and a connector 316. Specifically, the end of the straight pipe 314 opposite to the connecting pipe is welded to the horizontal straight pipe 306; the end of the connecting pipe 315 opposite to the straight pipe 314 is connected to the other end of the hydraulic oil radiator 2 through the connector 316.

[0061] Furthermore, the sum of the lengths of the horizontal straight pipe 306, the straight pipe 314, and the connecting pipe 315 is the dimension of the bent portion 301 in the second direction 304. That is, the sum of the lengths of the horizontal straight pipe 306, the straight pipe 314, and the connecting pipe 315 is the dimension of the bent portion 301 in the length direction.

[0062] Further integration Figure 5 and Figure 6 As shown, the end of the connecting pipe 315 away from the straight pipe 314 is a limiting section 317; the limiting section 317 has a tapering structure from the horizontal straight pipe 306 to the straight pipe 314, and the diameter of the limiting section 317 near the end of the straight pipe 314 is larger than the diameter of the straight pipe 314; that is, a boss structure is formed between the limiting section 317 and the end of the straight pipe 314. This boss structure can limit the connecting piece 316 and prevent the connecting piece 316 from falling off the limiting section 317.

[0063] Specifically, the connector 316 includes a second connecting nut 318 and a second sealing ring 319; the second sealing ring 319 is disposed in the limiting section 317. Similarly, the structure of the connecting pipe 315, the limiting section 317, and the connector 316 is equivalent to a conventional compression fitting. A connection gap is formed between the second connecting nut 318 and the limiting section 317. In actual use, the fittings on the hydraulic oil radiator 2 can be inserted into the gap formed between the second connecting nut 318 and the limiting section 317, and the outer wall of the fittings on the hydraulic oil radiator 2 is also provided with external threads adapted to the second connecting nut 318. This achieves a threaded connection between the second connecting nut 318 and the fittings on the hydraulic oil radiator 2. Furthermore, since a second sealing ring 319 is also provided on the limiting section 317, when the fittings on the hydraulic oil cooler 2 are inserted into the gap, the second sealing ring 319 will be pressed, thereby enabling the connecting pipe 315 to achieve a sealed connection with the fittings on the hydraulic oil cooler, thus preventing oil leakage.

[0064] In summary, firstly, this application directly provides the bending portion 301, eliminating the need to bend the straight pipe 314 during actual use. Secondly, a structure similar to a ferrule-type sealing joint is directly formed on the bending portion 301, eliminating the need for an additional ferrule-type sealing joint and significantly saving space compared to existing technologies. Finally, by reducing the need for additional ferrule-type sealing joints, this application reduces connection gaps and the probability of oil leakage.

[0065] Example 2

[0066] This application also provides a vehicle including the aforementioned heat exchanger. Therefore, it possesses all the beneficial effects of a heat exchanger, which will not be elaborated upon here.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat exchanger, characterized by, This includes air conditioning condensers, hydraulic oil coolers, and oil guiding components; An installation gap of a first preset size is provided between the air conditioner condenser and the hydraulic oil radiator; The oil guiding assembly is connected to the hydraulic oil radiator; the oil guiding assembly has a second preset size smaller than the first preset size, and when the oil guiding assembly is installed in the installation gap, the installation gap between the air conditioner condenser and the hydraulic oil radiator of the first preset size remains unchanged.

2. The heat exchanger of claim 1, wherein The oil guiding assembly includes a bent portion and a straight portion communicating with the bent portion; The dimension of the bent portion in the first direction is smaller than the dimension of the installation gap in the first direction, and the sum of the dimensions of the bent portion and the straight portion in the second direction is smaller than the dimension of the installation gap in the second direction, such that the second preset dimension is smaller than the first preset dimension.

3. The heat exchanger of claim 2, wherein, The bent portion includes a vertical tube, a horizontal straight tube, a first sealing ring, and a first connecting nut; The vertical pipe and the horizontal straight pipe are connected by a 90° arc transition, so that the vertical pipe and the horizontal straight pipe form an elbow joint, and the distance between the side wall of the horizontal straight pipe away from the vertical pipe and the end of the vertical pipe away from the horizontal straight pipe is the dimension of the bend in the first direction. An installation groove is provided on the vertical pipe at a first preset position, and the first sealing ring is disposed in the installation groove; The first connecting nut is disposed on the vertical pipe and can be connected to one end of the hydraulic oil cooler.

4. The heat exchanger of claim 3, wherein The vertical pipe includes a first section connected to the horizontal straight pipe and a second section connected to the end of the first section that is away from the horizontal straight pipe. The second segment is a tapered structure that gradually narrows from the first segment to the second segment; The second segment has a mounting groove for installing the first sealing ring.

5. The heat exchanger according to claim 4, characterized in that, The bent portion also includes a retaining ring; A limiting groove is provided at one end of the first segment near the second segment, and the retaining ring is disposed in the limiting groove so as to limit the first connecting nut to the vertical pipe.

6. The heat exchanger according to claim 3, characterized in that, The straight section includes a straight pipe, a connecting pipe communicating with the straight pipe, and a connector; The end of the straight pipe opposite to the connecting pipe is connected to the horizontal straight pipe; the end of the connecting pipe opposite to the straight pipe is connected to the other end of the hydraulic oil radiator through the connector. The lengths of the horizontal straight pipe, the straight pipe, and the connecting pipe are equal to the dimensions of the bent portion in the second direction.

7. The heat exchanger according to claim 6, characterized in that, The end of the connecting pipe that is away from the straight pipe is a limiting section; The limiting segment has a tapering structure from the horizontal straight pipe to the straight pipe, and the diameter of the limiting segment near the end of the straight pipe is larger than the diameter of the straight pipe. The connector includes a second connecting nut and a second sealing ring; the second sealing ring is disposed in the limiting section.

8. The heat exchanger according to claim 6, characterized in that, The horizontal straight pipes are connected to each other by welding.

9. The heat exchanger according to claim 6, characterized in that, The straight pipe and the connecting pipe are connected by welding.

10. A vehicle, characterized in that, Includes the heat exchanger as described in any one of claims 1-9.