Plate heat exchanger

Abstract

The utility model provides a plate heat exchanger, and relates to the field of heat exchanger structures. The plate heat exchanger comprises a core body assembly and a heat exchanger assembly, wherein the core body assembly is provided with a plurality of sub-core bodies communicating in sequence; an accommodating part for accommodating the core body assembly is formed in the shell body assembly; a groove used for installing the shell assembly is formed in the installation part, and the structure of the installation part is arranged in a profiling mode relative to the shell assembly; a plurality of mounting holes are further formed in the mounting piece. Compared with a base plate of a plate-shaped structure in the prior art, the bending strength of the edge of the installation part is effectively enhanced, and therefore the risks of deformation and cracking of the installation part are reduced; in addition, the mounting piece and the shell assembly are arranged in a profiling mode, namely, the contour around the mounting hole is optimized, and therefore the weight of the mounting piece can be effectively reduced, and meanwhile the structural consistency of the heat exchanger is improved.

Description

Technical Field

[0001] The present application relates to the field of heat exchanger structures, and in particular to a plate heat exchanger. Background Art

[0002] At present, the plate heat exchanger is assembled and fixed to the vehicle through a base plate and screws. The screw holes need to be set away from the core, and based on the flat structure of the base plate, the screw holes also need to maintain a certain distance from the edge of the base plate to ensure the stability of the heat exchanger connection. This will cause the size of the base plate to be much larger than the size of the core, greatly increasing the total weight of the heat exchanger.

[0003] In addition, the flat substrate is not strong enough, and after long-term use, it is easy for the substrate to deform, and the core welding parts to warp and crack, which will cause the sealing of the heat exchanger pipeline to deteriorate, and then cause coolant leakage. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a plate heat exchanger to solve the problem that the base plate formed in a flat plate structure in the existing plate heat exchanger is large in size and insufficient in strength.

[0005] According to the above purpose, the utility model provides a plate heat exchanger, wherein the plate heat exchanger comprises:

[0006] A core assembly is provided with a plurality of sub-cores connected in sequence;

[0007] a housing assembly, formed with a receiving portion for placing the core assembly; and

[0008] The mounting piece is formed with a groove for mounting the housing component, and the structure of the mounting piece is arranged in a contour relative to the housing component; the mounting piece is also formed with a plurality of mounting holes.

[0009] Preferably, the sub-core comprises a plurality of cooling liquid cores and refrigerant cores, and the cooling liquid cores and the refrigerant cores are stacked alternately in sequence to form a plurality of flow channels.

[0010] Preferably, the sub-core is formed into a groove-like structure; along the length direction of the sub-core, the side wall of the middle section of the sub-core is formed into a straight plate-like structure, and the side walls at both ends of the sub-core are formed into an "m"-shaped curved plate-like structure.

[0011] Preferably, the shell assembly includes a bottom shell, which is formed into a groove-shaped structure corresponding to the core assembly, and the bottom shell is located at the bottom end of the core assembly, and the side wall of the bottom shell is in contact with the outer side wall of the core assembly; the shell assembly also includes a top shell located at the top end of the core assembly.

[0012] Preferably, the structure of the mounting piece is arranged in a contour relative to the bottom shell; along the length direction of the mounting piece, the side wall of the middle section of the mounting piece is formed into a straight plate-like structure and fits with the outer wall of the bottom shell; the side walls at both ends of the mounting piece are formed into an "m"-shaped curved plate-like structure and form a gap with the outer wall of the bottom shell.

[0013] Preferably, along the length direction of the mounting member, a notch is formed at the side wall between the middle section of the mounting member and the two ends of the mounting member, and the length of the notch is not less than the thickness of the side wall of the mounting member.

[0014] Preferably, the included angle between the side walls at both ends of the mounting member and the bottom of the mounting member is formed as A, 90°≤A≤120°.

[0015] Preferably, a plurality of positioning protrusions are formed at the center of the bottom of the groove facing the bottom shell, and through holes corresponding to the positioning protrusions are formed at the bottom of the bottom shell.

[0016] Preferably, the mounting holes are located at both ends of the mounting member, and when the bottom shell is assembled correspondingly to the mounting member, the mounting holes are located on the outside of the bottom shell.

[0017] Preferably, the core assembly, the bottom shell and the mounting member are respectively formed with a first flow guide hole, a second flow guide hole and a third flow guide hole, the first flow guide hole, the second flow guide hole and the third flow guide hole are connected in sequence; the third flow guide hole is connected to the liquid source through a pipeline.

[0018] According to the plate heat exchanger of the utility model, the corresponding assembly of the heat exchanger and the whole vehicle is realized by the mounting member and the mounting hole formed thereon. The mounting member is formed into a groove-like structure (that is, its side wall is bent), and the shell component and the core component are stably arranged in the groove of the mounting member. Compared with the substrate of the plate-like structure in the prior art, the bending strength of the edge of the mounting member is effectively enhanced, thereby reducing the risk of deformation and cracking of the mounting member; in addition, the mounting member and the shell component are contoured, that is, the contour around the mounting hole is optimized, thereby effectively reducing the weight of the mounting member, while also improving the structural consistency of the heat exchanger.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of a plate heat exchanger according to an embodiment of the utility model;

[0022] Figure 2 is a partial schematic diagram of a plate heat exchanger according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of assembling the bottom shell and the mounting member according to an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of a mounting member according to an embodiment of the utility model.

[0025] Icons: 1-core assembly; 10-sub-core; 11-first guide hole; 20-bottom shell; 201-second guide hole; 202-through hole; 21-top shell; 3-mounting piece; 30-groove; 31-mounting hole; 32-notch; 33-positioning bump; 34-third guide hole; 35-flange. DETAILED DESCRIPTION

[0026] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0027] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0028] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0029] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0030] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0031] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0032] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0033] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0034] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0035] According to the utility model, a plate heat exchanger is provided, such as Figures 1 to 4 As shown, the plate heat exchanger in this embodiment includes a core assembly 1, a shell assembly and a mounting member 3, which are assembled correspondingly to achieve the technical effect of heat transfer. In the following, the specific structure of the above-mentioned parts of the plate heat exchanger according to the utility model will be described in detail.

[0036] In this embodiment, if Figure 1 to Figure 2 As shown, the core assembly 1 includes a plurality of sub-cores 10, and specifically includes a coolant core and a refrigerant core, wherein the coolant core and the refrigerant core are stacked alternately in sequence, and any adjacent sub-cores 10 are connected to each other to form a plurality of flow channels inside the core assembly 1. Furthermore, each sub-core 10 is formed into a similar groove-like structure, and along the length direction of the sub-core 10, the side wall of the middle section of the sub-core 10 is formed into a straight plate-like structure (i.e., the side wall of the middle section is a straight structure), and the side walls at both ends of the sub-core 10 are formed into a curved plate-like structure similar to an "m" shape (i.e., the side walls at both ends are formed into a curved structure). It should be noted that the core assembly 1 in this embodiment is the core assembly 1 in the existing plate heat exchanger, so its specific structure, assembly method, material, heat exchange principle, etc. are not described in detail.

[0037] In this embodiment, if Figures 2 to 3As shown, the shell assembly is formed with a receiving portion for placing the core assembly, so as to further improve the structural strength of the heat exchanger and the stability during heat exchange. Specifically, the shell assembly includes a bottom shell 20 and a top shell 21, the bottom shell 20 is formed into a groove-shaped structure corresponding to the core assembly 1, and the bottom shell 20 is located at the bottom end of the core assembly 1 (that is, a plurality of sub-cores 10 are stacked in sequence and placed in the groove-shaped structure of the bottom shell 20), so that the side wall of the bottom shell 20 fits with the outer side wall of the core assembly 1 (actually, the inner side wall of the bottom shell 20 fits with the outer side wall of the lowermost sub-core 10 in the core assembly 1). In addition, the shell assembly also includes a top shell 21 located at the top end of the core assembly 1, which is also formed into a structure similar to the sub-core 10, so as to be correspondingly assembled in the groove-shaped structure of the uppermost sub-core 10 in the core assembly 1.

[0038] In addition, the heat exchanger is assembled and fixed to the vehicle through the mounting member 3. Figure 3 to Figure 4 As shown, the mounting member 3 in this embodiment is formed with a groove 30 for mounting the shell assembly, and the structure of the mounting member 3 is configured to conform to the bottom shell 20 (or the sub-core 10), that is, along the length direction of the mounting member 3, the side wall of the middle section of the mounting member 3 is formed as a straight plate structure and fits with the outer wall of the bottom shell 20 to improve the connection strength between the mounting member 3 and the shell assembly; and the side walls at both ends of the mounting member 3 are formed as an "m"-shaped curved plate structure and form a gap with the outer wall of the bottom shell 20.

[0039] That is to say, the contours of the mounting member 3 and the bottom shell 20 in the present embodiment are not exactly the same. For example, both ends of the mounting member 3 in the length direction protrude from the bottom shell 20, and mounting holes 31 for connecting the heat exchanger to the entire vehicle are provided at the protruding positions. That is, the mounting holes 31 in the present embodiment are located at both ends of the mounting member 3 in the length direction, and when the bottom shell 20 and the mounting member 3 are assembled accordingly, the mounting holes 31 are located on the outside of the bottom shell 20.

[0040] The mounting member 3 in this embodiment is formed into a groove-like structure, that is, a flange is formed at the outer edge of its bottom, so that the bending strength of the edge of the mounting member 3 is effectively enhanced (determined by its material processing characteristics, that is, the internal dislocation density of the cold-bent metal sheet increases and is entangled with each other to form a cellular structure to hinder the movement of dislocations. The greater the deformation, the more serious the dislocation entanglement, the greater the deformation resistance, and the higher the strength), thereby reducing the risk of deformation and cracking of the mounting member 3; based on this, the mounting hole 31 can also be set close to the outer edge of the mounting member 3 to facilitate the reduction of the volume and weight of the mounting member 3. In addition, the mounting member 3 is configured to imitate the shell assembly, that is, the contour around the mounting hole 31 is optimized, which can further reduce the weight of the mounting member 3 and improve the structural consistency of the heat exchanger.

[0041] Furthermore, the outer side wall of the mounting member 3 in this embodiment is formed by a bending process, and in order to better achieve the above technical effects, along the length direction of the mounting member 3, a notch 32 is formed at the side wall between the middle section of the mounting member 3 and the two ends of the mounting member 3, and the length of the notch 32 is not less than the thickness of the side wall of the mounting member 3, which can avoid stress concentration during bending. In addition, the angle between the side walls at both ends of the mounting member 3 and the bottom of the mounting member 3 is formed as A, 90°≤A≤120° (the larger the angle, the higher the strength). It should be noted that the specific size and shape structure of the mounting member 3 are not fixed, as long as it can facilitate the realization of the above technical effects.

[0042] In addition, in order to facilitate the assembly of the bottom shell 20 and the mounting member 3, a plurality of positioning protrusions 33 are formed at the center of the bottom of the groove 30 (facing the bottom shell 20) of the mounting member 3 (the positioning protrusions 33 in this embodiment are formed as a cylindrical structure, and the number is two), and the bottom of the bottom shell 20 is formed with through holes 202 corresponding to the positioning protrusions 33. When the bottom shell 20 and the mounting member 3 are assembled, the positioning protrusions 33 are connected to the through holes 202 in a one-to-one correspondence. After the positioning protrusions 33 are inserted into the corresponding through holes 202, they should be flush with the bottom of the bottom shell 20 (such as Figure 3 to ensure the sealing of the heat exchanger.

[0043] In addition, the core assembly 1, the bottom shell 20 and the mounting member 3 are respectively formed with a first guide hole 11, a second guide hole 201 and a third guide hole 34, the first guide hole 11, the second guide hole 201 and the third guide hole 34 are connected in sequence, and the third guide hole 34 is connected to the liquid source through a pipeline to facilitate the introduction and circulation of the coolant and the refrigerant (this is a common structure of the existing heat exchanger, so it will not be repeated). Further, as Figure 4 As shown, in this embodiment, two third flow guide holes 34 arranged diagonally are connected to the liquid source through flanges 35, and the other two third flow guide holes 34 are connected to the liquid source through seals and connecting pipes (not shown in the figure).

[0044] In addition, in this embodiment, each component is connected by welding similar to the existing heat exchanger to ensure the sealing of the heat exchanger structure.

[0045] According to the plate heat exchanger of the utility model, the corresponding assembly of the heat exchanger and the whole vehicle is realized by the mounting member 3 and the mounting hole 31 formed thereon. The mounting member 3 is formed into a groove-like structure (that is, its side wall is bent), and the shell component and the core component 1 are stably arranged in the groove 30 of the mounting member 3. Compared with the substrate of the plate-like structure in the prior art, the bending strength of the edge of the mounting member 3 is effectively enhanced, thereby reducing the risk of deformation and cracking of the mounting member 3; in addition, the mounting member 3 is configured to conform to the shell component, that is, the contour around the mounting hole 31 is optimized, thereby effectively reducing the weight of the mounting member 3 and improving the structural consistency of the heat exchanger.

[0046] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A plate heat exchanger, characterized in that: The plate heat exchanger comprises: A core assembly is provided with a plurality of sub-cores connected in sequence; a housing assembly, formed with a receiving portion for placing the core assembly; and The mounting piece is formed with a groove for mounting the housing component, and the structure of the mounting piece is arranged in a contour relative to the housing component; the mounting piece is also formed with a plurality of mounting holes.

2. The plate heat exchanger according to claim 1, characterized in that: The sub-cores include a plurality of cooling liquid cores and refrigerant cores, and the cooling liquid cores and the refrigerant cores are stacked alternately in sequence to form a plurality of flow channels.

3. The plate heat exchanger according to claim 1, characterized in that: The sub-core is formed into a groove-shaped structure; along the length direction of the sub-core, the side wall of the middle section of the sub-core is formed into a straight plate-shaped structure, and the side walls at both ends of the sub-core are formed into a curved plate-shaped structure similar to an "m" shape.

4. The plate heat exchanger according to claim 3, characterized in that: The shell assembly includes a bottom shell, which is formed into a groove-shaped structure corresponding to the core assembly, and the bottom shell is located at the bottom end of the core assembly, and the side wall of the bottom shell is in contact with the outer side wall of the core assembly; the shell assembly also includes a top shell located at the top end of the core assembly.

5. The plate heat exchanger according to claim 4, characterized in that: The structure of the mounting piece is arranged in a contour relative to the bottom shell; along the length direction of the mounting piece, the side wall of the middle section of the mounting piece is formed into a straight plate structure and fits with the outer wall of the bottom shell; the side walls at both ends of the mounting piece are formed into an "M"-shaped curved plate structure and form a gap with the outer wall of the bottom shell.

6. The plate heat exchanger according to claim 5, characterized in that: Along the length direction of the mounting piece, a notch is formed at the side wall between the middle section of the mounting piece and the two ends of the mounting piece, and the length of the notch is not less than the thickness of the side wall of the mounting piece.

7. The plate heat exchanger according to claim 5, characterized in that: The included angle between the side walls at both ends of the mounting member and the bottom of the mounting member is A, 90°≤A≤120°.

8. The plate heat exchanger according to claim 5, characterized in that: A plurality of positioning protrusions are formed at the center of the bottom of the groove facing the bottom shell, and through holes corresponding to the positioning protrusions are formed at the bottom of the bottom shell.

9. The plate heat exchanger according to claim 5, characterized in that: The mounting holes are located at two ends of the mounting member, and when the bottom shell is assembled correspondingly to the mounting member, the mounting holes are located on the outside of the bottom shell.

10. The plate heat exchanger according to claim 4, characterized in that: The core assembly, the bottom shell and the mounting member are respectively formed with a first guide hole, a second guide hole and a third guide hole, the first guide hole, the second guide hole and the third guide hole are connected in sequence; the third guide hole is connected to a liquid source through a pipeline.

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