Heat exchange device

Abstract

This invention discloses a heat exchange device, including a valve core component and a core component. The core component has a plate portion, and the valve core component has a valve seat portion. The valve seat portion has a base section and a middle section. The base section has a bottom opening, and the middle section has a peripheral opening. The middle section and the base section extend into a first channel. The heat exchange device includes a connector, the first end of which is located in the first channel. The bottom opening of the base section communicates with a connecting channel, which is not directly connected to the first channel. The heat exchange device includes a first blocking portion, which blocks the first channel. The first channel includes a first sub-channel located on one side of the first blocking portion and a second sub-channel located on the other side of the first blocking portion. The peripheral opening communicates with the first sub-channel, but the first sub-channel and the second sub-channel are not directly connected. This heat exchange device has a compact structure.

Description

Technical Field

[0001] This invention relates to the field of thermal management, and more particularly to a heat exchange device. Background Technology

[0002] A thermal management system typically includes two components: a heat exchanger and an expansion valve. These two components are usually connected by piping.

[0003] Some designs integrate the heat exchanger and expansion valve, fixing the valve body to the heat exchanger for a more compact overall structure. However, some connecting pipes remain connected to the expansion valve body. Summary of the Invention

[0004] The purpose of this invention is to provide a compact heat exchange device.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] A heat exchange device includes a valve core component and a core component, wherein the valve core component and the core component are fixedly disposed together; characterized in that:

[0007] The core component has a plate portion, and the plate portion has at least a first channel, a second channel, and an inter-plate channel, wherein the first channel, the inter-plate channel, and the second channel are connected.

[0008] The valve core component has a valve seat portion, the valve seat portion has a base section and a middle section, the base section has a bottom opening, the middle section has a peripheral opening, the valve seat portion has a throttling orifice, the throttling orifice can connect the peripheral opening and the bottom opening, and the middle section and the base section are located in the first channel;

[0009] The heat exchange device includes a connector having a connection channel and a first end located at the first channel. The bottom opening of the base section communicates with the connection channel, and the connection channel is not directly connected to a portion of the first channel between the outer wall of the connector and the plate portion.

[0010] The heat exchange device includes a first blocking part, which blocks the first channel. The first channel includes a first sub-channel located on one side of the first blocking part and a second sub-channel located on the other side of the first blocking part. The peripheral opening communicates with the first sub-channel, but the first sub-channel and the second sub-channel are not directly connected.

[0011] In the above technical solution, the base section and the middle section are located in the first channel. The base section of the valve seat has a bottom opening, and the middle section has a peripheral opening. The middle section and the base section are located in the first channel. The exchange device includes a first blocking part, which separates the first channel. The first channel includes a first sub-channel located on one side of the first blocking part and a second sub-channel located on the other side of the first blocking part. The peripheral opening communicates with the first sub-channel, but the first sub-channel and the second sub-channel are not directly connected. This solution has a compact structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first embodiment of the heat exchange device;

[0013] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0014] Figure 3 This is a cross-sectional schematic diagram of a second embodiment of the heat exchange device;

[0015] Figure 4 This is a cross-sectional schematic diagram of a third embodiment of the heat exchange device; Detailed Implementation

[0016] Reference Figure 1 , Figure 1 A cross-sectional schematic diagram illustrating one embodiment of a heat exchange device.

[0017] The heat exchange device 1 includes at least a first flow channel 101 and a second flow channel. The fluid in the first flow channel 101 can exchange heat with the fluid in the second flow channel. The fluid in the first flow channel 101 can be a refrigerant, and the fluid in the second flow channel can be a coolant. The heat exchange device 1 may also have a third flow channel, a fourth flow channel, etc.

[0018] The heat exchange device 1 includes a valve core component 11, a core component 12, and a connector 13. The valve core component 11 and the core component 12 are assembled and fixed, and the connector 13 is fixedly disposed to the core component 12, for example, by welding. The valve core component 11 may be, for example, the valve core structure of an expansion valve.

[0019] The core component 12 has a top pressing block 122, a plate portion 121, and a bottom pressing block 123, which are welded together. The plate portion 121 has at least a first channel 1211, a second channel 1213, and an inter-plate channel 1212, which are connected. The first channel 1211, the inter-plate channel 1212, and the second channel 1213 are connected. The first flow channel 101 includes a portion of the first channel 1211, the second channel 1213, and the inter-plate channel 1212.

[0020] In this document, the first channel 1211 and the second channel 1213 refer to the channels of the core component 12 when the valve core component 11 is not assembled. After the valve core component or connector is assembled in the first channel 1211 and the second channel 1213, even if there is a component or part located in other components, as long as the location of the component is the first channel or the second channel of the core component, this document still assumes that the component or part is located in the first channel or the second channel.

[0021] The plate section 121 has a plurality of stacked plates, adjacent plates are welded together, and each plate has at least a first hole and a second hole. Along the stacking direction of the plates, the first holes of each plate are aligned, and the second holes of each plate are aligned. The first holes and second holes are located near the edges of the plates, so that the fluid flowing through the plates can have a longer flow path, which helps to improve heat exchange efficiency. The aligned first holes of each plate form a part of a first channel 1211, and the aligned second holes of each plate form a part of a second channel 1213.

[0022] The top pressure block 122 has a third hole 1221, which is aligned with the first hole. The bottom pressure block 123 has a connecting hole 1231, which is aligned with the first hole.

[0023] The heat exchange device 1 includes a first connecting channel 103 and a second connecting channel 104. The first connecting channel 103 is connected to the connecting channel 138 of the connector 13, and the second connecting channel 104 can be connected to the second channel 1213. In this way, fluid can enter from the first connecting channel 103, pass through the inner cavity of the connector 13, be throttled and regulated by the valve core component 11, enter the first channel, and then enter the interplate channel 1212 and the second flow channel of the core component 12 for fluid heat exchange. The flow path is simple and the heat exchange efficiency is high. Of course, in other cases, the second connecting channel 104 may not be directly connected to the second channel 1213. For example, a pipe can be installed in the second channel 1213 and connected to the second connecting channel 104 through the pipe. In other cases, the second connecting channel 104 may not be connected to the inter-plate channel 1212 through the second hole 1213. The second connecting channel 104 may also be located on the side of the core component 12 where the first connecting channel 103 is located. The second connecting channel 104 may be adjacent to the first connecting channel 103 and may not be directly connected to the first connecting channel 103.

[0024] The core component 12 has a first side 124 and a second side 126, at least a portion of the valve core component 11 is located on the first side 124, and a connecting channel 138 is located on the second side 126, the connecting channel communicating with the connection channel. For example, the valve core component 11 includes a coil portion 1120, the coil portion 1120 being located on the first side 124.

[0025] At least a portion of the valve core component 11 extends into the first channel 1211, and at least a portion of the connector 13 extends into the first channel 1211.

[0026] The valve core component 11 has a valve seat portion 111, at least a portion of which is located in a first channel 1211. The valve seat portion 111 has a peripheral opening 1113, a throttling orifice 1114, and a bottom opening 1115. The peripheral opening 1113 communicates with the first channel 1211 and with the inter-plate channel 1212. The connector 13 has a connecting channel 138, one end of which is located in the first channel 1211. The bottom opening 1115 communicates with the connecting channel 138 of the connector 13. The connecting channel 138 is not directly connected to the first channel 1211. The valve core component 11 can be the valve core portion of an electronic expansion valve. Thus, fluid can enter the inter-plate channel 1212 from the connecting channel 138 of the connector 13 via the bottom opening 1115, the throttling orifice 1114, the peripheral opening 1113, and the first channel 1211, allowing the fluid to exchange heat with the fluid between adjacent plates inside the plate portion 121. The peripheral opening 1113 can be directly connected to the first channel 1211 or directly connected to the inter-plate channel 1212.

[0027] In this article, the fact that the connecting channel is not directly connected to the first channel does not preclude the possibility that the two are connected through a flow channel set by other components.

[0028] The valve seat portion 111 has a base section 1111 and a middle section 1112. The base section 1111 has a bottom opening 1115. The base section 1111 and the middle section 1112 are located in the first channel. The base section 1111 is located inside the connector 13, and the periphery of the base section 1111 is sealed to the inner wall of the connector 13. The middle section 1112 has a peripheral opening 1113. In the stacking direction of the core component 12, the middle section 1112 is closer to the first side portion 124 of the core component 12 than the base section 1111. The middle section 1112 is located in the plate portion 121, and the peripheral opening 1113 communicates with the first channel 1211 and the inter-plate channel 1212. In this way, the valve core component 11 is assembled to a greater depth into the core component 12, which helps to reduce the height of the valve core component 11 protruding from the core component 12, and contributes to a more compact overall structure. When the valve core component is in the open state, the connecting channel, the connecting channel, the bottom opening, the throttling orifice, the peripheral opening, the first channel, the inter-plate channel, and the second channel are connected.

[0029] The base section 1111 is provided with a first groove 1116, and the heat exchange device 1 has a first seal 14. The first seal 14 is located in the first groove 1116. The first seal 14 and the connector 13 abut against each other and fit tightly to achieve a seal between the two, thus effectively preventing leakage between the base section 1111 and the connector 13.

[0030] It should be noted that the terms "base section" and "middle section" in this article are used only for name differentiation and are not used for structural limitation.

[0031] The connector 13 is welded to the core component 12. The core component 12 has a welding mating portion 125, which is welded to the connector 13. Along the extension direction of the first channel 1211, the thickness of the welding mating portion 125 is greater than the thickness of at least two stacked plates. Thus, during the welding shrinkage process of the core component 12, because the welding mating portion 125 has a thickness greater than that of two stacked plates, the connector 13 can weld well to the welding mating portion 125 during the welding process, which is beneficial to the stability of the seal. The thickness of the welding mating portion can also be greater than the thickness of five stacked plates.

[0032] The connector 13 has a first end 134 and a second end 135. The first end 134 is located in the first channel 1211. The second end 135 of the connector 13 has a first segment 1351 and a second segment 1352, which are adjacent to each other. The second segment 1352 is welded to the welding mating part 125. The outer diameter of the second segment 1352 is less than or equal to the inner diameter of the welding mating part 125. The distance between the end of the welding mating part 125 away from the valve core component and the end of the second segment 1352 away from the valve core component is greater than or equal to zero. When the stacked plates are welded, since the outer diameter of the second segment is less than or equal to the inner diameter of the welding mating part, the plates can move from the second segment to the first segment relative to the connector, leaving a margin for welding with the welding mating part. This facilitates the welding seal between the connector and the core component, and also facilitates the sealing fit between the valve core component and the connector.

[0033] The second segment 1352 may also have a first segment and a second segment. The first segment is welded to the welding mating part 125, and the second segment is adjacent to the first segment and is farther away from the first end relative to the first segment. The outer diameter of the second segment is less than or equal to the inner diameter of the first segment. When the connector 13 is assembled into the core component 12, the first segment may not be correspondingly set with the welding mating part 125. When the core component shrinks, the first segment moves toward the welding mating part 125 and is welded and fixed to the welding mating part 125.

[0034] The core component 12 has a bottom pressure block 123, a portion of the second end 135 of the connector 13 extends into the bottom pressure block 123, the bottom pressure block 123 has a welding mating part 125, a portion of the second end 135 extends into the welding mating part 125, and the second segment 1352 of the second end 135 is welded and fixed to the bottom pressure block 123.

[0035] The bottom pressure block 123 has a protrusion 1232 that extends into the first channel 1211. The protrusion 1232 has a connecting hole 1231 that communicates with the first channel 1211. A welding mating part 125 is provided on the inner wall of the protrusion 1232. The second section 1352 extends into the connecting hole 1231 of the protrusion 1232. The outer wall of the protrusion 1232 is welded and fixed to the plate part 121.

[0036] Of course, as another method, the bottom pressure block and the core component can also be fixed by assembly; the bottom pressure block may also not have a protruding structure.

[0037] The core component 12 has a top pressure block 122, and a flange portion 1322 is welded and fixed to the top pressure block 122. The valve seat portion 111 of the valve core component 11 extends into the third hole 1221 of the top pressure block 122. The flange portion 1322 can limit and fix the connecting member 13 and the plate portion 121. When the plate portion 121 shrinks during the welding process, the flange portion 1322 is welded and fixed to the top pressure block 122 of the core component 12, which can ensure the certainty of the position of the valve seat mating portion 132 in the core component 12, reduce the impact of plate shrinkage on the position of the valve seat mating portion 132, and reduce the risk of fluid leakage between the valve seat mating portion 132 and the valve seat.

[0038] The heat exchange device includes a first blocking portion 1217, which separates the first channel 1211. The first channel 1211 includes a first sub-channel 1211a located on one side of the first blocking portion 1217 and a second sub-channel 1211b located on the other side of the first blocking portion 1217. The peripheral opening 1113 communicates with the first sub-channel 1211a, but the first sub-channel 1211a and the second sub-channel 1211b are not directly connected.

[0039] The core component 12 has a first plate 1214c, the first plate 1214c has a first blocking part 1217, the first blocking part 1217 is welded and fixed to the outer wall of the connector 13, with the core component 12 assembled with the valve core component 11, the first blocking part 1217 is located below the middle section 1112.

[0040] The base section 1111 is located on the connector 13, and the base section 1111 is sealed to the connector 13. Along the extension direction of the first channel, with the side of the core component where the valve core component is located as the upper part, the first blocking part 1217 is located below the peripheral opening 1113. In this way, the arrangement of the first blocking part 1217 has less interference with the fluid exiting the peripheral opening 1113.

[0041] The first channel 1211 has a first sub-channel 1211a and a second sub-channel 1211b. The first blocking part 1217 is welded to the outer wall of the connector 13 to fix and separate the first sub-channel 1211a and the second sub-channel 1211b.

[0042] The core component 12 has a second plate 1215c, the second plate 1215c has a second blocking portion 1218, the second blocking portion 1218 is located at the second channel 1213, the second channel 1213 includes a third sub-channel 1213a and a fourth sub-channel 1213b, and the second blocking portion 1218 separates the third sub-channel 1213a and the fourth sub-channel 1213b.

[0043] The inter-plate channel 1212 has a first route 1212a, a second route 1212b, and a third route 1212c, wherein the first route 1212a flows in the opposite direction to the second route 1212b, and the second route 1212b flows in the opposite direction to the third route 1212c. Thus, after the fluid enters the connector 13 through the first connecting channel 103, it enters from the bottom opening 1115, and then enters the first sub-channel 1211a, the first route 1212a, the third sub-channel 1213a, the second route 1212b, the second sub-channel 1211b, the third route 1212c, and the second connecting channel 104 through the throttling hole 1114 and the peripheral opening 1113. After the fluid enters the heat exchange device, it can not only achieve throttling and pressure reduction, but also the fluid entering the inter-plate channel 1212 from the peripheral opening 1113 can directly exchange heat with the fluid in the adjacent inter-plate channel 1212. Throttling and heat exchange can be completed inside the core component 12, which is not only conducive to the phase stability of the fluid, but also conducive to improving the heat exchange efficiency.

[0044] Reference Figure 3 , Figure 3 A cross-sectional schematic diagram of another embodiment of the heat exchange device 2 is shown.

[0045] The general structure of heat exchange device 2 and Figure 2 The structures shown are similar. The same reference numerals in the following figures represent the same or similar structures.

[0046] The heat exchange device 2 includes a valve core component 11, a core component 12, and a connector 13. The valve core component 11 and the core component 12 are assembled and fixed, and the connector 13 is fixedly disposed to the core component 12, for example, by welding. The valve core component 11 may be, for example, the valve core structure of an expansion valve.

[0047] The heat exchange device includes a first blocking portion 1217, which separates the first channel 1211. The first channel 1211 includes a first sub-channel 1211a located on one side of the first blocking portion 1217 and a second sub-channel 1211b located on the other side of the first blocking portion 1217. The peripheral opening 1113 communicates with the first sub-channel 1211a, but the first sub-channel 1211a and the second sub-channel 1211b are not directly connected.

[0048] The core component 12 has a first plate 1214c, the first plate 1214c has a first blocking part 1217, the first blocking part 1217 is welded and fixed to the outer wall of the connector 13, with the core component 12 assembled with the valve core component 11, the first blocking part 1217 is located below the middle section 1112.

[0049] The base section 1111 is located on the connector 13, and the base section 1111 is sealed to the connector 13. Along the extension direction of the first channel, with the side of the core component where the valve core component is located as the upper part, the first blocking part 1217 is located below the peripheral opening 1113. In this way, the arrangement of the first blocking part 1217 has less interference with the fluid exiting the peripheral opening 1113.

[0050] The first channel 1211 has a first sub-channel 1211a and a second sub-channel 1211b. The first blocking part 1217 is welded to the outer wall of the connector 13 to fix and separate the first sub-channel 1211a and the second sub-channel 1211b.

[0051] The core component 12 has a bottom pressure block 123, which has the first connecting channel 103, and the bottom pressure block 123 is welded and fixed to the plate portion 121.

[0052] The bottom pressure block 123 has a second connecting channel 104, which is not directly connected to the first connecting channel 103, but is connected to the second sub-channel 1211b.

[0053] The inter-plate channel has a first route and a second route, with the first route and the second route flowing in opposite directions;

[0054] When the valve core component is in the open state, the first connecting channel 103, the connecting channel 138, the bottom opening 1115, the throttling orifice 1114, the peripheral opening 1113, the first sub-channel 1211a, the first route 1212a, the second channel 1213, the second route 1212b, the second sub-channel 1211b, and the second connecting channel 104 are connected.

[0055] Reference Figure 4 , Figure 4 A cross-sectional schematic diagram of heat exchange device 3 is shown.

[0056] The general structure of heat exchange device 3 and Figure 2 The structures shown are similar. The same reference numerals in the following figures represent the same or similar structures.

[0057] The heat exchange device 3 includes a first blocking part 1217, which separates the first channel 1211. The first channel 1211 includes a first sub-channel 1211a located on one side of the first blocking part 1217 and a second sub-channel 1211b located on the other side of the first blocking part 1217. The peripheral opening 1113 communicates with the first sub-channel 1211a, but the first sub-channel 1211a and the second sub-channel 1211b are not directly connected.

[0058] The core component 12 has a first plate 1214c, and the connector 13 extends with a first blocking portion 1217. The first blocking portion 1217 extends in the radial direction of the connector 13 and is welded and fixed to the first plate 1214c.

[0059] The base section 1111 is located on the connector 13, and the base section 1111 and the connector 13 are sealed together. Along the extension direction of the first channel, with the side of the core component where the valve core component is located as the upper side, the connector 13 is located below the peripheral opening 1113. When the connector 13 is inserted into the first channel, the connector 13 is located below the peripheral opening 1113, which minimizes interference with the fluid exiting the peripheral opening.

[0060] It should be understood that although the connector shown in the figure is an integral structure, the present invention also includes a scheme in which the connector is a split structure. For example, the connector may include two parts that are fixed by threads or two parts that are otherwise limited and fitted, or two or three parts that are set by welding, etc.

[0061] It should be understood that the first blocking part can be integrally formed with the plate, integrally formed with the connector, or welded together with the plate and connector by welding.

[0062] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. For example, the directional definitions such as "front", "back", "left", "right", "up", and "down" are used. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still combine, modify or substitute the present invention with each other. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A heat exchange device, comprising a valve core component and a core component, wherein the valve core component and the core component are fixedly disposed thereon; characterized in that: The core component has a plate portion, and the plate portion has at least a first channel, a second channel, and an inter-plate channel, wherein the first channel, the inter-plate channel, and the second channel are connected. The valve core component has a valve seat portion, the valve seat portion has a base section and a middle section, the base section has a bottom opening, the middle section has a peripheral opening, the valve seat portion has a throttling orifice, the throttling orifice can connect the peripheral opening and the bottom opening, and the middle section and the base section are located in the first channel; The heat exchange device includes a connector having a connection channel and a first end located at the first channel. The bottom opening of the base section communicates with the connection channel, and the connection channel is not directly connected to a portion of the first channel between the outer wall of the connector and the plate portion. The heat exchange device includes a first blocking part, which blocks the first channel. The first channel includes a first sub-channel located on one side of the first blocking part and a second sub-channel located on the other side of the first blocking part. The peripheral opening communicates with the first sub-channel, but the first sub-channel and the second sub-channel are not directly connected.

2. The heat exchange device according to claim 1, characterized in that: The plate portion includes a first plate, the first plate having a first blocking portion, the first blocking portion being welded and fixed to the outer wall of the connector; The base section is located on the connector and is sealed to the connector. Along the extension direction of the first channel, with the side of the core component where the valve core component is located as the upper side, the first blocking part is located below the peripheral opening.

3. The heat exchange device according to claim 1, characterized in that: The plate portion includes a first plate, and the connector extends with a first blocking portion, which extends radially in the connector and is welded and fixed to the first plate. The base section is located on the connector, and the base section is sealed to the connector. Along the extension direction of the first channel, with the side of the core component where the valve core component is located as the upper side, the connector is located below the peripheral opening.

4. The heat exchange device according to claim 1, 2, or 3, characterized in that: The core component has a first side and a second side, at least a portion of the valve core component is located on the first side, and the heat exchange device has a first connecting channel located on the second side, the connecting channel being connected to the connection channel; The inter-plate channel has at least a first route and a second route. When the valve core component is in the open state, the first connecting channel, the connecting channel, the bottom opening, the throttling orifice, the peripheral opening, the first sub-channel, the first route, the second channel, the second route, and the second sub-channel are connected.

5. The heat exchange device according to claim 4, characterized in that: The core component has a bottom pressure block, the bottom pressure block has the first communicating channel, and the bottom pressure block is welded and fixed to the plate portion; The bottom pressure block has a second connecting channel, which is not directly connected to the first connecting channel, but is connected to the second sub-channel.

6. The heat exchange device according to claim 1, 2, or 3, characterized in that: The core component has a second plate and a second blocking portion. The second blocking portion is a part of the second plate or the second blocking portion is welded and fixed to the second plate. The second blocking portion is located at the second channel position. The second channel includes a third sub-channel and a fourth sub-channel. The third sub-channel is located on one side of the second blocking portion, and the fourth sub-channel is located on the other side of the second blocking portion. Along the extension direction of the first channel, with the side of the valve core component located on the core component as the upper side, the second blocking part is located below the first blocking part.

7. The heat exchange device according to claim 6, characterized in that: The inter-plate channel has a first route, a second route, and a third route, wherein the first route flows in the opposite direction to the second route, and the second route flows in the opposite direction to the third route; When the valve core component is in the open state, the connecting channel, bottom opening, throttling orifice, peripheral opening, first sub-channel, first route, third sub-channel, second route, second sub-channel, third route, and fourth sub-channel are connected.

8. The heat exchange device according to any one of claims 1-7, characterized in that: The core component has a welded mating portion, the connector has a second end, the second end has a first segment and a second segment, the first segment and the second segment are adjacent, the second segment is welded to the welded mating portion, the outer diameter of the second segment is less than or equal to the inner diameter of the welded mating portion, and the distance between the end of the welded mating portion away from the valve core component and the end of the second segment away from the valve core component is greater than or equal to zero.

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