Heat exchange plate assembly, heat exchange device and heat management system

Abstract

The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange plate assembly, a heat exchange device and a heat management system. The heat exchange plate assembly comprises a heat exchange plate which is formed through punching; the heat exchange plate comprises: a substrate; the interface section is arranged at one end of the substrate, and the interface section protrudes towards the outer side of the substrate in the thickness direction of the substrate; the transition section is connected between the interface section and the substrate; the pit is formed in the transition section and located on the outer wall of the transition section. According to the heat exchange plate assembly, a large welding face can be achieved, welding is easy, the welding effect is easily guaranteed, and the leakage risk and the strength problem easily caused by large-R-angle welding are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange plate assembly, a heat exchange device and a thermal management system. Background Art

[0002] As the application of batteries and chips becomes increasingly mature, the demand for miniaturization and integration becomes increasingly apparent. This places extremely high demands on the heat exchange devices used for high-power batteries or chips. To reduce space occupation, heat exchange devices are also tending to be platform-based.

[0003] The platform-based heat exchange device includes a pipe joint and a heat exchange plate assembly, with heat exchange channels formed within the plate assembly. The plate assembly is formed by stamping, and the pipe joint is connected to the side interface of the heat exchange assembly. This straight-through insertion method reduces the possibility of vortices when the pipe joint enters the plate assembly vertically, thereby reducing pressure drop. Furthermore, the pipe joint is located parallel to the length of the plate assembly, taking up less space and adapting to a wider range of heat dissipation environments, increasing the potential for platformization.

[0004] The problem is that the heat exchange plate assembly in the prior art is composed of stamped plates, and a large R angle is formed at the interface of the stamped plates, resulting in poor welding and sealing effect. Utility Model Content

[0005] The purpose of the present invention is to provide a heat exchange plate assembly, a heat exchange device and a thermal management system, so as to solve the technical problem of poor welding sealing effect existing in the prior art to a certain extent.

[0006] The utility model provides a heat exchange plate assembly, comprising: a heat exchange plate, wherein the heat exchange plate comprises: a base plate; an interface section, which is arranged at one end of the base plate, and in the thickness direction of the base plate, the interface section protrudes toward the outside of the base plate; a transition section, which is connected between the interface section and the base plate; and a pit, which is arranged in the transition section and is located on the outer wall of the transition section.

[0007] When the substrate is stamped to form an interface section and a recessed portion, and the recessed portion is located at the transition section between the interface section and the substrate, and the recessed portion is located on the outer wall of the transition section, then in the process of forming the recessed portion, the recessed material is squeezed downward, that is, toward the inside of the substrate, so that the material is squeezed toward the inside of the transition section, thereby making the R angle of the inner wall of the transition section smaller and tending to be a sharp angle setting, so that a larger welding surface can be achieved, making welding easier, and ensuring the welding effect, avoiding the leakage risk and strength problems that are easily caused by large R angle welding.

[0008] Furthermore, the heat exchange plate assembly includes two heat exchange plates, one of which is an upper heat exchange plate and the other is a lower heat exchange plate, and the upper heat exchange plate and the lower heat exchange plate are arranged opposite to each other; the base plate of the upper heat exchange plate is an upper base plate, and the interface section of the upper heat exchange plate is an upper interface section, the base plate of the lower heat exchange plate is a lower base plate, and the interface section of the lower heat exchange plate is a lower interface section, and the upper interface section and the lower interface section are connected to form an interface section.

[0009] Furthermore, at least one of the upper substrate and the lower substrate is provided with a plurality of heat exchange grooves to form a plurality of heat exchange channels between the upper heat exchange plate and the lower heat exchange plate, the plurality of heat exchange channels including a liquid inlet channel and a liquid outlet channel, and two interface sections are provided at the same end of the substrate, and the two interface sections are spaced apart along the width direction of the substrate; the two interface sections correspond to the liquid inlet channel and the liquid outlet channel, respectively.

[0010] Furthermore, the transition section includes a side transition section; in the width direction of the substrate, the side transition sections are respectively provided between the two sides of the interface section and the substrate; and the pit is provided on the side transition section.

[0011] Furthermore, there are multiple side transition sections, and the multiple side transition sections are arranged at intervals along the length direction of the base plate.

[0012] Furthermore, the upper interface section and the lower interface section are both arranged in a strip shape extending along the width direction of the substrate, and the number of the upper interface sections and the number of the lower interface sections are both one; at least one of the upper interface section and the lower interface section includes a boss, which separates the interface section into two cavities.

[0013] Furthermore, the transition section includes an end transition section; the upper interface section includes the boss, and in the length direction of the substrate, the end transition section is provided between one end of the boss and the substrate, and the end transition section is provided between one end of the lower interface section and the substrate; the pit is provided on the end transition section.

[0014] Furthermore, the heat exchange plate assembly further comprises: a flange plate, which is arranged at the opening of the interface section, and the flange plate is provided with two through holes, and the two through holes are respectively connected with the two cavities.

[0015] The utility model provides a heat exchange device, comprising: a pipe joint and the above-mentioned heat exchange plate assembly, wherein the pipe joint is welded to the interface section.

[0016] The utility model provides a thermal management system, comprising the above-mentioned heat exchange device.

[0017] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. Together, the description and the drawings serve to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An exploded view of the heat exchange device shown;

[0021] Figure 3 for Figure 1 A schematic structural diagram of the upper interface section of the heat exchange plate assembly in the heat exchange device shown;

[0022] Figure 4 for Figure 1 A schematic structural diagram of the lower interface section of the heat exchange plate assembly in the heat exchange device shown;

[0023] Figure 5 This is a structural diagram of the lower interface section of the heat exchange plate assembly in the heat exchange device in another embodiment of the present invention;

[0024] Figure 6 This is a schematic structural diagram of a heat exchange component in a heat exchange device according to another embodiment of the present invention;

[0025] Figure 7 for Figure 6 A schematic diagram of the local structure of the heat exchange component shown;

[0026] Figure 8 6 is a schematic structural diagram of the upper heat exchange plate in the heat exchange assembly;

[0027] Figure 9 6 is a schematic structural diagram of the lower heat exchange plate in the heat exchange assembly.

[0028] icon:

[0029] 1-heat exchange plate; 11-base plate; 12-interface section; 13-side transition section; 131-pointed section; 132-large R-angle section; 14-heat exchange groove; 15-upper end transition section; 16-lower end transition section; 17-boss; 18-upper heat exchange plate; 19-lower heat exchange plate; 110-pit; 111-upper base plate; 112-lower base plate; 121-upper interface section; 122-lower interface section;

[0030] 2-flange plate; 21-through hole;

[0031] 3-Pipe joint. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0038] like Figures 1 to 9 As shown, the utility model provides a heat exchange plate assembly, comprising: a heat exchange plate 1 (which can be formed by stamping); the heat exchange plate comprises: a base plate 11; an interface section 12, which is arranged at one end of the base plate 11, and in the thickness direction of the base plate 11, the interface section 12 protrudes toward the outside of the base plate 11; a transition section, which is connected between the interface section 12 and the base plate 11; a pit 110, which is arranged in the transition section and is located on the outer wall of the transition section.

[0039] In the prior art, an interface section 12 is stamped on a substrate 11. Under the influence of the mold, a smooth transition section is formed between the interface section 12 and the substrate 11. In particular, the radius of the smooth transition section between the inner wall of the interface section 12 and the inner wall of the substrate 11 is larger, and the radius of the inner wall of the transition section is larger, that is, a larger R angle is formed between the interface section 12 and the substrate 11.

[0040] In this embodiment, the interface section 12 and the pit 110 are formed by stamping the substrate 11, and the pit 110 is located at the transition section between the interface section 12 and the substrate 11, and the pit 110 is located on the outer wall of the transition section. In the process of forming the pit 110, the recessed material is squeezed downward, that is, squeezed toward the inner side of the substrate 11, so that the material is squeezed toward the inner side of the transition section, so that the R angle of the inner wall of the transition section is smaller and tends to be a sharp angle setting, so that a larger welding surface can be achieved, making welding easier and ensuring the welding effect easier, avoiding the leakage risk and strength problems that are prone to large R angle welding.

[0041] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the heat exchange plate assembly includes two, one of which is an upper heat exchange plate 18 and the other is a lower heat exchange plate 19, and the upper heat exchange plate 18 and the lower heat exchange plate 19 are arranged opposite to each other; the base plate 11 of the upper heat exchange plate 18 is an upper base plate 111, and the interface section 12 of the upper heat exchange plate 18 is an upper interface section 121, the base plate 11 of the lower heat exchange plate 19 is a lower base plate 112, and the interface section 12 of the lower heat exchange plate 19 is a lower interface section 122; the upper interface section and the lower interface section are connected to form the interface section.

[0042] In other embodiments, the heat exchange plate assembly may also include three or more heat exchange plates, and the multiple heat exchange plates are stacked. A heat exchange plate and the heat exchange plate on the adjacent side form a first medium channel, and the heat exchange plate and the heat exchange plate on the other side form a second medium channel. The first medium channel and the second medium channel can flow two fluids, and the two fluids exchange heat; the first medium channel and the second medium channel can also flow the same fluid.

[0043] The upper interface section 121 and the lower interface section 122 are spliced together to form the entire interface section, and the cross-sectional shape of the interface section is a closed ring (the closed ring can be circular, elliptical, or quadrilateral, etc.), so that it can be connected to the pipe joint 3. During the welding process of the upper interface section 121 and the lower interface section 122, since the inner wall of the transition section between the upper interface section 121 and the upper base plate 111 tends to be sharp, and the inner wall of the transition section between the lower interface section 122 and the lower base plate 112 tends to be sharp, after the upper interface section 121 and the lower interface section 122 are connected, not only can the two transition sections achieve a larger surface contact compared to the existing technology, thereby facilitating welding and ensuring the welding effect, welding strength and sealing, but also the welding surface between the upper interface section 121 and the lower interface section 122 and the pipe joint 3 is increased, thereby ensuring the welding effect of the pipe joint 3 and the interface and ensuring sealing.

[0044] like Figure 1 and Figure 2 As shown, based on the above embodiment, further, a plurality of heat exchange grooves 14 are provided on at least one of the upper base plate 111 and the lower base plate 112, so that a plurality of heat exchange channels are formed between the upper heat exchange plate 18 and the lower heat exchange plate 19, and the plurality of heat exchange channels include liquid inlet channels and liquid outlet channels.

[0045] In this embodiment, the upper heat exchange plate 18 and the lower heat exchange plate 19 are relatively connected together (optionally, the upper heat exchange plate 18 and the lower heat exchange plate 19 are welded together), so that the heat exchange grooves 14 form a heat exchange flow channel. The multiple heat exchange grooves 14 form multiple heat exchange flow channels, including liquid inlet and outlet flow channels. It is understood that the interface section 12 is connected to the heat exchange flow channel.

[0046] Among them, heat exchange grooves 14 can be set on both the upper substrate 111 and the lower substrate 112. The upper substrate 111 and the lower substrate 112 are connected together, and the two heat exchange grooves 14 form a heat exchange flow channel. Optionally, heat exchange grooves 14 are set on the upper substrate 111, and the lower substrate 112 is connected to the upper substrate 111 to cover the heat exchange grooves 14 of the upper substrate 111, or heat exchange grooves 14 are set on the lower substrate 112, and the upper substrate 111 and the lower substrate 112 are connected to cover the heat exchange grooves 14 of the lower substrate 112, which facilitates processing.

[0047] The number of heat exchange channels can be two, one for the liquid inlet channel and the other for the liquid outlet channel: the liquid inlet channel and the liquid outlet channel can be in the shape of a "U". In this case, both ends of the substrate 11 are provided with interface sections 12, one for connecting the inlet pipe joint, and the other for connecting the outlet pipe joint. The heat exchange medium can enter the liquid inlet channel through the inlet pipe joint and then flow out through the liquid outlet channel and the outlet pipe joint; alternatively, the liquid inlet channel and the liquid outlet channel are arranged in a "U" shape. In this case, two interface sections 12 are provided at the same end of the substrate, so that the inlet pipe joint and the outlet pipe joint are connected on the same side of the heat exchange plate assembly. Alternatively, the multiple heat exchange channels also include at least one intermediate channel, which is connected between the liquid inlet channel and the liquid outlet channel. In this case, the inlet pipe joint and the outlet pipe joint are respectively located on both sides of the heat exchange plate.

[0048] As an alternative, Figure 1 and Figure 2 As shown, two interface sections 12 are provided at the same end of the substrate 11 , and the two interface sections 12 are spaced apart along the width direction of the substrate 11 ; there are two interface sections 12 , and the two interface sections 12 correspond to the liquid inlet channel and the liquid outlet channel respectively.

[0049] In this embodiment, two upper interface sections 121 are provided at the same end of the upper base plate 111, and correspondingly, two lower interface sections 122 are provided at the same end of the lower base plate 111. The two upper interface sections 121 are welded to the two lower interface sections 122 in a one-to-one correspondence, so that two interfaces are provided on the same side of the heat exchange plate assembly, so that the inlet pipe joint and the outlet pipe joint are connected on the same side of the heat exchange plate assembly, further making the structure of the heat exchange device compact.

[0050] Among them, the two interface sections 12 can be staggered in the height direction of the substrate or in the length direction of the substrate 11 at the same end of the substrate 11; optionally, the two interface sections 12 are aligned to make the structure of the heat exchange plate assembly regular and easy to process.

[0051] Specifically, if Figure 3 and Figure 4 As shown, the transition section includes side transition sections 13. Side transition sections 13 are provided between the base plate 11 and the interface section 12 on either side of the base plate 11 in the width direction. Each side transition section 13 is provided with a recess 110. The side transition sections 13 of the upper heat exchange plate 18 are upper side transition sections, while the side transition sections 13 of the lower heat exchange plate 19 are lower side transition sections. The upper and lower side transition sections are welded together.

[0052] Alternatively, as Figure 5 As shown, there are multiple side transition sections 13 , and the multiple side transition sections 13 are arranged at intervals along the length direction of the base plate 11 .

[0053] In this embodiment, the inner wall of the transition section includes a plurality of spaced-apart, tapered sections 131. A large rounded section 132 (i.e., a smooth transition section) is sandwiched between two adjacent tapered sections 131. It is understood that the radius of the tapered sections 131 is much smaller than that of the large rounded sections 132. Due to the presence of the large rounded section 132, the solder moves toward the tapered sections 131 due to capillary action, resulting in a better soldering effect.

[0054] As another option, Figures 6 to 9 As shown, both the upper interface section 121 and the lower interface section 122 extend along the width of the substrate 11, and there is only one upper interface section 121 and one lower interface section 122. Thus, the interface section formed by the connection between the upper interface section 121 and the lower interface section 122 is only one, and the interface section is also arranged in a strip shape. Projected along the length of the substrate 11, the interface section's projection covers the projections of the liquid inlet and outlet channels. At least one of the upper interface section 121 and the lower interface section 122 includes a boss 17, which divides the interface section into two cavities, each of which is connected to the liquid inlet and outlet channels.

[0055] This embodiment illustrates a heat exchange plate assembly that implements one fluid inlet and one fluid outlet. In other embodiments, the heat exchange plate assembly can also implement multiple fluid inlets and outlets. In this case, the number of upper interface segments 121 and lower interface segments 122 is multiple (for example, two, three, or four). One upper interface segment 121 and one lower interface segment 122 form one interface segment, and multiple upper interface segments 121 and multiple lower interface segments 122 form multiple interface segments, each of which corresponds to one liquid inlet channel and one liquid outlet channel.

[0056] The upper interface section 121 and the lower interface section 122 may both include a boss 17. As an optional solution, the boss 17 is provided in the upper interface section 121 or the boss 17 is provided in the lower interface section 122 to facilitate processing.

[0057] like Figure 8 and Figure 9 As shown, based on the above embodiment, the upper interface section 121 further includes a boss 17. In the length direction of the substrate 11, an upper end transition section 15 is provided between one end of the boss 17 and the substrate 11, and a lower end transition section 16 is provided between one end of the lower interface section 122 and the substrate 11; pits 110 are provided on both the upper end transition section 15 and the lower end transition section 16, and the two end transition sections are welded.

[0058] In this embodiment, the pit 110 on the outer wall of the end transition section makes the radius of the inner wall of the end transition section smaller, so that the welding between the partition sections can be reliable and the sealing is good, avoiding the risk of the two cavities communicating with each other.

[0059] The number of the end transition sections may be one; the number of the end transition sections may also be multiple, and the multiple end transition sections are arranged at intervals along the width direction of the substrate.

[0060] like Figure 6 As shown, based on the above embodiment, the heat exchange plate assembly further includes a flange plate 2, which is arranged at the opening of the interface section 12. The flange plate 2 is provided with two through holes 21, and the two through holes 21 are respectively connected to the two cavities.

[0061] An embodiment of the present invention further provides a heat exchange device, comprising a heat exchange plate assembly according to any of the above technical solutions, wherein the pipe joint 3 is welded to the interface section 12. Therefore, the heat exchange device has all the beneficial technical effects of the heat exchange plate assembly, which will not be described in detail here.

[0062] An embodiment of the present invention also provides a thermal management system, including the above-mentioned heat exchange device, which includes the heat exchange plate assembly of any of the above-mentioned technical solutions. Therefore, the thermal management system has all the beneficial technical effects of the heat exchange plate assembly, which will not be repeated here.

[0063] Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the various embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is meant to be within the scope of the present invention and to form different embodiments.

Claims

1. A heat exchange plate assembly, characterized in that: include: A heat exchange plate, comprising: substrate; An interface section is provided at one end of the substrate, and protrudes outward from the substrate in the thickness direction of the substrate; a transition section connected between the interface section and the base plate; The pit is arranged in the transition section and is located on the outer wall of the transition section.

2. The heat exchange plate assembly according to claim 1, characterized in that: The heat exchange plate assembly includes two heat exchange plates, one of which is an upper heat exchange plate and the other is a lower heat exchange plate, and the upper heat exchange plate and the lower heat exchange plate are arranged opposite to each other; the base plate of the upper heat exchange plate is an upper base plate, and the interface section of the upper heat exchange plate is an upper interface section, the base plate of the lower heat exchange plate is a lower base plate, and the interface section of the lower heat exchange plate is a lower interface section, and the upper interface section and the lower interface section are connected to form the interface section.

3. The heat exchange plate assembly according to claim 2, characterized in that: At least one of the upper base plate and the lower base plate is provided with a plurality of heat exchange grooves to form a plurality of heat exchange channels between the upper heat exchange plate and the lower heat exchange plate, the plurality of heat exchange channels including a liquid inlet channel and a liquid outlet channel, and two interface sections are provided at the same end of the base plate, and the two interface sections are spaced apart along the width direction of the base plate; the two interface sections correspond to the liquid inlet channel and the liquid outlet channel, respectively.

4. The heat exchange plate assembly according to claim 2 or 3, characterized in that: The transition section includes a side transition section; In the width direction of the substrate, the side transition sections are respectively provided between the two sides of the interface section and the substrate; The side transition section is provided with the recess.

5. The heat exchange plate assembly according to claim 4, characterized in that: There are multiple side transition sections, and the multiple side transition sections are arranged at intervals along the length direction of the base plate.

6. The heat exchange plate assembly according to claim 4, characterized in that: The upper interface segment and the lower interface segment both extend along the width direction of the substrate, and the number of the upper interface segment and the number of the lower interface segment are both one; At least one of the upper interface segment and the lower interface segment includes a boss that separates the interface segment into two cavities.

7. The heat exchange plate assembly according to claim 6, characterized in that: The transition section includes an upper end transition section and a lower end transition section; The upper interface section includes the boss. In the length direction of the substrate, the upper end transition section is provided between one end of the boss and the substrate, and the lower end transition section is provided between one end of the lower interface section and the substrate; the pit is provided on both the upper end transition section and the lower end transition section.

8. The heat exchange plate assembly according to claim 6, characterized in that: Also includes: The flange plate is arranged at the opening of the interface section. The flange plate is provided with two through holes, and the two through holes are respectively connected with the two cavities.

9. A heat exchange device, characterized in that: include: A pipe joint and a heat exchange plate assembly according to any one of claims 1 to 8, wherein the pipe joint is welded to the interface section.

10. A thermal management system, characterized in that: Comprising the heat exchange device as claimed in claim 9.

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