Liquid cooling plate and energy storage converter
Patent Information
- Application Number
- CN202522634166.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-11
AI Technical Summary
[0022]By adopting the above technical solution, this utility model has the advantages of simple structure, ingenious design, and low cost. The second substrate has multiple first and second heat exchange chambers that rationally distribute and converge the coolant, meeting the heat dissipation needs of multiple electronic components. Furthermore, the depth of the first and second heat exchange chambers is less than the depth of each flow channel, and baffles or fins are installed in each heat exchange chamber to further improve the heat dissipation effect. The rational layout of the heat exchange area and flow path at the front and rear ends improves heat exchange efficiency, reduces the difference in heat exchange capacity between the front and rear liquid cooling plates, and effectively extends service life.
Smart Images
Figure CN224844565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology, and in particular to a liquid cooling plate and an energy storage converter. Background Technology
[0002] With the continuous development of new energy technologies, the application of energy storage devices is becoming increasingly widespread. Energy storage devices store electrical energy through battery modules formed by battery cells and output it to the outside world when needed. In addition to the battery modules, energy storage devices also include battery management devices, energy management devices, and energy storage converters that work in conjunction with the battery modules. The energy storage converter controls the charging and discharging process of the battery modules and is a key component for enabling bidirectional flow of electrical energy between the energy storage device and the power grid.
[0003] Energy storage converters comprise numerous electronic components, some of which generate heat during operation, causing the internal temperature of the converter to rise. To meet the heat dissipation requirements of energy storage converters, they are typically equipped with liquid cooling plates. The heat dissipation effect of the liquid cooling plate affects the normal operation of the energy storage converter. Therefore, ensuring the effective heat dissipation of the liquid cooling plate within the energy storage converter is a crucial issue.
[0004] Therefore, it is necessary to provide a liquid-cooled plate and an energy storage converter to overcome the defects mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a liquid cooling plate and an energy storage converter.
[0006] According to one aspect of the present invention, a liquid cooling plate is provided, comprising:
[0007] First substrate,
[0008] The second substrate is stacked below the first substrate. A flow channel is formed on the upper surface of the second substrate. The flow channel includes a main liquid inlet tank, a first heat exchange zone communicating with the main liquid inlet tank, a second heat exchange zone communicating with the first heat exchange zone, and a main liquid outlet tank communicating with the second heat exchange zone. The first heat exchange zone includes a diversion section and a confluence section communicating with each other. The diversion section is communicating with the main liquid inlet tank, and the confluence section is communicating with the second heat exchange zone.
[0009] The diversion section includes multiple sets of first heat exchange chambers, each set of first heat exchange chambers being connected to the main liquid inlet tank through a diversion channel; the confluence section includes multiple second heat exchange chambers, each second heat exchange chamber being connected to a corresponding set of first heat exchange chambers through a confluence channel.
[0010] Liquid inlet, which is connected to the end of the main liquid inlet tank;
[0011] The liquid outlet is connected to the end of the main liquid outlet tank.
[0012] Preferably, the second heat exchange zone includes a third heat exchange chamber and a diversion chamber. The third heat exchange chamber is connected to the second heat exchange chamber through a flow channel. The third heat exchange chamber is directly connected to the diversion chamber, and the diversion chamber is directly connected to the main liquid outlet tank.
[0013] Preferably, the depth of the first heat exchange chamber is less than the depth of the diversion channel, the depth of the first heat exchange chamber is less than the depth of the confluence channel, the depth of the second heat exchange chamber is less than the depth of the confluence channel, the depth of the second heat exchange chamber is less than the depth of the flow channel, the depth of the third heat exchange chamber is less than the depth of the flow channel, and the depth of the third heat exchange chamber is less than the depth of the diversion chamber.
[0014] Preferably, in the diversion section, every two first heat exchange chambers form a group and are connected to a second heat exchange chamber through a manifold, and the main liquid inlet tank is connected to the two first heat exchange chambers through a diversion tank.
[0015] Preferably, the first heat exchange chamber is provided with a baffle plate, the second heat exchange chamber is provided with a baffle plate, and the third heat exchange chamber is provided with fins.
[0016] Preferably, the spoiler includes a plate body and spoiler columns disposed on the plate body.
[0017] Preferably, the fin includes turbulence teeth arranged sequentially along the flow direction, with adjacent turbulence teeth staggered, and each turbulence tooth includes a toothed piece spaced perpendicular to the flow direction.
[0018] Preferably, the diversion chamber is provided with a baffle strip, which protrudes upward from the bottom of the diversion chamber and extends along the extension direction of the diversion chamber.
[0019] Preferably, the diversion chamber is provided with a plurality of support columns for fixing to the first substrate, and the support columns are provided with vertically extending mounting holes.
[0020] According to another aspect of the present invention, an energy storage converter is provided, comprising a housing, an electronic component assembly, and the aforementioned liquid cooling plate, wherein the liquid cooling plate is disposed in the middle of the housing.
[0021] Compared with the prior art, the liquid-cooled plate and energy storage converter provided by this utility model have the following beneficial effects:
[0022] By adopting the above technical solution, this utility model has the advantages of simple structure, ingenious design, and low cost. The second substrate has multiple first and second heat exchange chambers that rationally distribute and converge the coolant, meeting the heat dissipation needs of multiple electronic components. Furthermore, the depth of the first and second heat exchange chambers is less than the depth of each flow channel, and baffles or fins are installed in each heat exchange chamber to further improve the heat dissipation effect. The rational layout of the heat exchange area and flow path at the front and rear ends improves heat exchange efficiency, reduces the difference in heat exchange capacity between the front and rear liquid cooling plates, and effectively extends service life. Attached Figure Description
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0024] Figure 1 This is a perspective view of the liquid cooling plate of this utility model;
[0025] Figure 2 This is an exploded view of the liquid cooling plate of this utility model;
[0026] Figure 3 This is a top view of the second substrate of this utility model;
[0027] Figure 4 for Figure 3 A cross-sectional view of surface AA;
[0028] Figure 5 This is a perspective view of the spoiler of this utility model;
[0029] Figure 6 This is a perspective view of the fins of this utility model;
[0030] Figure 7 This is a perspective view of the energy storage converter of this utility model;
[0031] Figure 8 This is a schematic diagram of the internal structure of the energy storage converter of this utility model.
[0032] Among them, 100 is a liquid cooling plate; 1 is a first substrate; 2 is a second substrate; 21 is a main liquid inlet tank; 22 is a first heat exchange zone; 221 is a flow distribution section; 2211 is a first heat exchange chamber; 222 is a flow junction section; 2221 is a second heat exchange chamber; 223 is a flow distribution channel; 224 is a flow junction channel; 23 is a second heat exchange zone; 231 is a third heat exchange chamber; 232 is a flow distribution chamber; 2321 is a baffle strip; 2322 is a support column; 2323 is a mounting hole; 24 is a main liquid outlet tank; 25 is a flow channel; 3 is a liquid inlet; 4 is a liquid outlet; 5 is a baffle plate; 51 is a plate body; 52 is a baffle column; 6 is a fin; 61 is a toothed fin; 7 is a housing; and 200 is an energy storage converter. Detailed Implementation
[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0034] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0035] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0036] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0039] See Figure 1 and Figure 2 This embodiment discloses a liquid cooling plate 100, the upper and lower surfaces of which are both planar and can be used to mount electronic components. The liquid cooling plate 100 includes a first substrate 1 and a second substrate 2, which are stacked together, with the first substrate 1 located above the second substrate 2.
[0040] See Figure 3 The first substrate 1 has both its upper and lower surfaces as planes, and the upper surface of the second substrate 2 is attached to the lower surface of the first substrate 1. The upper surface of the second substrate 2 has a flow channel, and its lower surface is flat. The flow channel includes a main inlet tank 21, a first heat exchange zone 22 communicating with the main inlet tank 21, a second heat exchange zone 23 communicating with the first heat exchange zone 22, and a main outlet tank 24 communicating with the second heat exchange zone 23. The first heat exchange zone 22 includes a diversion section 221 and a confluence section 222 communicating with each other. The diversion section 221 communicates with the main inlet tank 21, and the confluence section 222 communicates with the second heat exchange zone 23. The second substrate 2 also has an inlet 3 communicating with the end of the main inlet tank 21 and an outlet 4 communicating with the end of the main outlet tank 24.
[0041] In this embodiment, the diversion section 221 includes three sets of first heat exchange chambers 2211, each set including two first heat exchange chambers 2211. Each set of first heat exchange chambers 2211 is connected to the main inlet tank 21 via a diversion channel 223. The confluence section 222 includes three second heat exchange chambers 2221, each second heat exchange chamber 2221 being connected to its corresponding set of first heat exchange chambers 2211 via a confluence channel 224. The inlet ends of the three diversion channels 223 are connected in parallel to the main inlet tank 21, and each diversion channel 223 branches into two outlet ends connected to the corresponding first heat exchange chamber 2211. Each confluence channel 224 includes two inlet ends connected to two first heat exchange chambers 2211 in a set, and one outlet end connected to the corresponding second heat exchange chamber 2221.
[0042] The second heat exchange zone 23 includes a third heat exchange chamber 231 and a diversion chamber 232. The third heat exchange chamber 231 is connected to the second heat exchange chamber 2221 via a flow channel 25. The third heat exchange chamber 231 is directly connected to the diversion chamber 232, and the diversion chamber 232 is directly connected to the main outlet tank 24. In this embodiment, each second heat exchange chamber 2221 is connected to the third heat exchange chamber 231 via a flow channel 25. The diversion chamber 232 is provided with multiple support columns 2322 for fixing to the first substrate 1. The support columns 2322 are provided with vertically extending mounting holes 2323.
[0043] The flow distribution chamber 232 is equipped with a baffle strip 2321, which protrudes upward from the bottom of the flow distribution chamber 232. The baffle strip 2321 extends along the extension direction of the flow distribution chamber 232. The baffle strip 2321 can divert and guide the flow of coolant. After the coolant enters the flow distribution chamber 232, it forms multiple flow paths under the action of the baffle strip 2321, thereby dissipating heat from the heat-generating components.
[0044] See Figure 4The depth of the first heat exchange chamber 2211 is less than the depth of the diversion channel 223, and the depth of the first heat exchange chamber 2211 is less than the depth of the confluence channel 224. The depth of the second heat exchange chamber 2221 is less than the depth of the confluence channel 224, and the depth of the second heat exchange chamber 2221 is less than the depth of the flow channel 25. The depth of the third heat exchange chamber 231 is less than the depth of the flow channel 25, and the depth of the third heat exchange chamber 231 is less than the depth of the diversion chamber 232. This design increases the flow rate of the coolant flowing into each heat exchange chamber, meeting higher heat dissipation requirements.
[0045] In this embodiment, the main inlet tank 21, the diversion tank 223, the confluence tank 224, the flow channel 25, the diversion chamber 232, and the main outlet tank 24 have the same depth, and the first heat exchange chamber 2211, the second heat exchange chamber 2221, and the third heat exchange chamber 231 have the same depth.
[0046] See Figure 2 , Figure 5 and Figure 6 The first heat exchange chamber 2211 and the second heat exchange chamber 2221 each contain a baffle plate 5, and the third heat exchange chamber 231 contains fins 6. The baffle plate 5 includes a plate body 51 and baffle columns 52 disposed on the plate body 51. The fins 6 include baffle teeth sequentially connected along the flow direction, with adjacent baffle teeth staggered. Each baffle tooth includes toothed blades 61 spaced perpendicular to the flow direction. The baffle columns 52 and fins 6 can divert the coolant flow, creating a turbulent effect with increased local flow velocity within the heat exchange chamber. This allows heat conducted to the surface of the cold plate to be quickly transferred to the coolant within the heat exchange chamber, thereby improving the heat exchange effect. Simultaneously, it increases the contact surface area with the coolant, which also contributes to improved heat exchange efficiency.
[0047] The baffle 5 and fins 6 are used to agitate the coolant in the first heat exchange chamber 2211, the second heat exchange chamber 2221 and the third heat exchange chamber 231, so that the coolant can absorb heat more fully in the area where the baffle 5 and fins 6 are located, thereby improving the convective heat transfer capacity and convective mixing capacity of the coolant.
[0048] Because multiple sets of first heat exchange chambers 2211 are arranged in parallel, the flow rate and velocity of each set of first heat exchange chambers 2211 are smaller than those of the main liquid inlet tank 21. This reduction in flow rate leads to a decrease in the heat dissipation capacity of each set of first heat exchange chambers 2211. However, by reducing the depth of the first heat exchange chambers 2211 and installing baffles 5 within them, the heat dissipation capacity of the first heat exchange chambers 2211 is improved, compensating for the decrease in heat dissipation capacity caused by the reduced flow rate and thus improving the heat dissipation efficiency of the liquid cooling plate 100.
[0049] See Figure 7 and Figure 8This embodiment also discloses an energy storage converter 200, including a housing 7, an electronic component group, and the aforementioned liquid cooling plate 100. The liquid cooling plate 100 is disposed in the middle of the housing 7, and the electronic component group includes multiple electronic components disposed on the upper and lower surfaces of the liquid cooling plate 100, with the electronic components being rationally distributed and arranged corresponding to each heat exchange chamber.
[0050] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.
Claims
1. A liquid-cooled plate, characterized in that, include: First substrate, The second substrate is stacked below the first substrate. A flow channel is formed on the upper surface of the second substrate. The flow channel includes a main liquid inlet tank, a first heat exchange zone communicating with the main liquid inlet tank, a second heat exchange zone communicating with the first heat exchange zone, and a main liquid outlet tank communicating with the second heat exchange zone. The first heat exchange zone includes a diversion section and a confluence section communicating with each other. The diversion section is communicating with the main liquid inlet tank, and the confluence section is communicating with the second heat exchange zone. The diversion section includes multiple sets of first heat exchange chambers, each set of first heat exchange chambers being connected to the main liquid inlet tank through a diversion channel; the confluence section includes multiple second heat exchange chambers, each second heat exchange chamber being connected to a corresponding set of first heat exchange chambers through a confluence channel. Liquid inlet, which is connected to the end of the main liquid inlet tank; The liquid outlet is connected to the end of the main liquid outlet tank.
2. The liquid cooling plate as described in claim 1, characterized in that, The second heat exchange zone includes a third heat exchange chamber and a diversion chamber. The third heat exchange chamber is connected to the second heat exchange chamber through a flow channel. The third heat exchange chamber is directly connected to the diversion chamber. The diversion chamber is directly connected to the main liquid outlet tank.
3. The liquid cooling plate as described in claim 2, characterized in that, The depth of the first heat exchange chamber is less than the depth of the diversion channel, the depth of the first heat exchange chamber is less than the depth of the confluence channel, the depth of the second heat exchange chamber is less than the depth of the confluence channel, the depth of the second heat exchange chamber is less than the depth of the flow channel, the depth of the third heat exchange chamber is less than the depth of the flow channel, and the depth of the third heat exchange chamber is less than the depth of the diversion chamber.
4. The liquid cooling plate as described in claim 3, characterized in that, In the diversion section, every two first heat exchange chambers form a group and are connected to a second heat exchange chamber through a manifold. The main liquid inlet tank is connected to the two first heat exchange chambers through a diversion tank.
5. The liquid cooling plate as described in claim 4, characterized in that, The first heat exchange chamber is equipped with a baffle plate, the second heat exchange chamber is equipped with a baffle plate, and the third heat exchange chamber is equipped with fins.
6. The liquid cooling plate as described in claim 5, characterized in that, The spoiler includes a plate body and spoiler columns disposed on the plate body.
7. The liquid cooling plate as described in claim 6, characterized in that, The fin includes turbulence teeth that are sequentially connected along the flow direction, with adjacent turbulence teeth being staggered, and each turbulence tooth including a toothed piece that is spaced apart perpendicular to the flow direction.
8. The liquid cooling plate as described in claim 7, characterized in that, The flow divider chamber is provided with a baffle strip, which protrudes upward from the bottom of the flow divider chamber and extends along the extension direction of the flow divider chamber.
9. The liquid cooling plate as described in claim 8, characterized in that, The diversion chamber is provided with multiple support columns for fixing to the first substrate, and the support columns are provided with vertically extending mounting holes.
10. An energy storage converter, characterized in that, It includes a housing, an electronic component assembly, and a liquid cooling plate as described in any one of claims 1 to 9, wherein the liquid cooling plate is disposed in the middle of the housing.