A coolant cabinet

Abstract

The present invention relates to the technical field of heat dissipation, and discloses a coolant cabinet. By providing a first guide plate and a second guide plate, and arranging a first installation groove on the first side plate and a second installation groove on the second side plate, the first guide plate is embedded in the first installation groove, the second guide plate is embedded in the second installation groove, and flow channels are processed on the first guide plate and the second guide plate to separate the liquid inlet cavity and the liquid outlet cavity of the first side plate and the second side plate. The present invention adopts the method of embedding the guide plate into the side plate, cancels the side plate, thereby canceling the welding of the middle plug and the welding of the side sealing plate, realizes the reduction of welding points, not only reduces the welding and the grinding and testing processes after welding, simplifies the processing technology, reduces the cost, but also does not need to open holes and grooves on the base material of these parts, thereby improving the integrity and stability of the structure. By adopting the method of inlaying the guide plate and the side plate, the present invention reduces the welding points and improves the reliability, durability, corrosion resistance and air tightness of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation, and particularly to a coolant cabinet. Background Art

[0002] With the continuous progress of technology, the performance requirements in the fields of electronic devices, communication, and energy storage are increasing, which also brings heat problems during the operation of equipment. To effectively address this issue, liquid cooling technology has emerged. The development of liquid cooling technology has not only changed the way of heat dissipation for electronic devices but also provided better performance and stability for the devices.

[0003] Currently, there are mainly four mainstream solutions for liquid-cooled battery boxes in energy storage systems, namely sheet metal box + liquid cooling plate, die-cast box + liquid cooling plate, profile integrated box, and die-cast integrated box. Most of the production materials for liquid cooling chambers in the industry use aluminum alloy materials, which are aluminum materials with good heat dissipation performance.

[0004] Among them, compared with installing heat exchange tubes, the profile integrated box has advantages such as good flow channel load-bearing capacity and lower mold opening costs compared to other solutions, and has become the most widely used structural solution. However, the flow channel design of this solution has limitations, with many airtight welding parts, resulting in poor reliability of the airtight welding parts compared to the base material, a large amount of welding work, and multiple airtightness tests on the box due to too many airtight welding parts.

[0005] For the airtight parts of the existing profile integrated box, friction stir welding, argon arc welding, laser welding, and welding are usually used, and the four welding methods are comprehensively applied to different welding parts. Among them, the biggest drawbacks of argon arc welding and laser welding are that defects such as pinholes, cracks, and welding slag are easily formed inside the solder at the welding parts, resulting in poor airtightness durability and reliability of the product and a high airtightness risk. There are also drawbacks such as high cost of welding raw materials, and the need for multiple repeated weldings and airtightness tests to ensure airtightness, resulting in high labor costs and low welding efficiency.

[0006] As Figure 1 shown, currently in the industry, the major main parts of the liquid cooling chamber using the profile integrated type are the front baffle 1, rear baffle 2, left baffle 3, right baffle 4, and bottom plate 5 with a flow channel. The front baffle 1 and rear baffle 2 are key parts for the connection between the coolant circulation and the flow channel of the bottom plate 5. The combination of the main parts requires friction stir welding for airtight welding. Friction stir welding is based on the principle of solid-state fusion welding and is widely used in aircraft, high-speed ships and speedboats, high-speed rail trains, lightweight automotive structures, and aluminum alloy profile welding structures. It is the most stable in the fields of structural welding and airtight welding and has become the best choice.

[0007] However, after the friction welding and assembly of the main body of the profile integrated box is completed, the front baffle 1 and the rear baffle 2 are profiles produced by drawing due to the runner requirements, resulting in multiple leakage points that need to be plugged by argon arc welding or laser welding. After welding, the welding points need to be polished to make them flat, and the polishing will further thin the solder, resulting in further damage to the airtight reliability. After the airtight points are welded, the welding points without airtight requirements are further welded. After all welding is completed, the overall airtightness of the product is detected and then subsequent surface treatment and other work are carried out to complete the production of the overall liquid cooling chamber. The cooling working principle during the use of the product is that the coolant is pressed into the water inlet of the front baffle 1 by a booster pump, and then flows through the water inlet channel of the bottom plate 5, the water channel of the rear baffle 2, the water outlet channel of the bottom plate 5, and the water outlet of the front baffle 1, and then enters the booster cooling pump to complete the cooling work in turn.

[0008] The current industry adopts the profile integrated design method for the major main parts of the liquid cooling box (front baffle 1, rear baffle 2, left baffle 3, right baffle 4, bottom plate 5). The water channels of the front baffle 1 and the rear baffle 2 are integrally formed with the baffles. There are at least 10 places on the front baffle 1 and the rear baffle 2 that need to be grooved or block welded to match the runner design structure, and all these 10 places need to be realized by argon arc welding or laser welding. As Figure 2 shown, the middle block 6 of the front baffle, the left water channel sealing plate 7 of the front baffle, the right water channel sealing plate 8 of the front baffle, as Figure 3 shown, the middle block 9 of the rear baffle, the outer sealing plate 10 of the rear baffle, the left lower water channel sealing plate 11 of the rear baffle, the left upper water channel sealing plate 12 of the rear baffle, the outer sealing plate 13 of the rear baffle, the right lower water channel sealing plate 14 of the rear baffle, the right upper water channel sealing plate 15 of the rear baffle, all need to be machined and grooved for assembly and then airtight welded. Specifically, the middle block 6 of the front baffle is used to divide the water inlet chamber and the water outlet chamber, and 1 place needs to be grooved and then the block is assembled and welded; the upper and lower cavities at both ends of the front baffle 1 are blocked, and 2 places need to be blocked and then welded; the middle block of the rear baffle is used to divide the water inlet chamber and the water outlet chamber, and 1 place needs to be grooved and then the block is assembled and welded; the upper and lower cavities at both ends of the rear baffle 2 are blocked, and 4 places need to be blocked and then welded; the side of the rear baffle 2 needs to be grooved to connect the lower water channel and the upper water channel (pressurized and divided water channel), and then welded and blocked, and 2 places need to be blocked and welded. Therefore, the technical pain points of the liquid cooling box in the current industry lie in too many airtight welding points, which need to be welded by argon arc welding or laser welding. Too many airtight welding points result in poor product reliability, durability, corrosion resistance to the coolant, and serious airtight defects. Among them, the airtightness is affected by impurities such as pinholes, weld seams, cracks, and surface oxidation after welding, and the welding points need to be polished to be flat. If there are phenomena such as porosity and false welding, the polishing will cause the welding points to leak, and the airtight defects are very serious.

[0009] Argon arc welding and laser welding belong to fusion welding, that is, the solder is melted at high temperature and dripped into the molten pool of the welded base material. During the welding process, hydrogen in the air will dissolve in the aluminum in the high-temperature molten state. When the aluminum in the molten pool cools and solidifies, hydrogen begins to precipitate in the gaseous state. During this process, pinholes will be formed in the aluminum solder. Most of the liquid cooling chambers in the industry have an airtightness requirement of an inflation pressure of 500 Kpa. Therefore, these pinholes cause great damage to the airtight reliability. And the solder joints need to be polished flat after welding to achieve better assembly. During the polishing process, the solder joints are further damaged or even the pinholes are directly exposed on the surface.

[0010] During argon arc welding and laser welding, due to local heating between the solder and the base material, thermal stress and the temperature difference between the base material and the solder will cause cracks in the weld. In addition, if the solder and the base material are not cleaned or polished cleanly before welding, impurities and oil will melt into the weld and form welding slag in the molten pool.

[0011] Therefore, during the production process, the airtight solder joints need to be welded repeatedly to repair the pinholes and welds. The straight-through success rate of one-time welding is almost zero.

[0012] Since the internal air bubbles cannot be visually inspected after repairing defects such as pinholes, cracks, and welding slag, the resulting problem of false soldering causes the welds to crack during the subsequent surface treatment high-temperature processing and transportation vibration processes. Most seriously, the fluorinated liquid as the coolant causes intra-hole corrosion of the pinholes. During the continuous erosion process, the pinholes gradually expand. In theory, the pinholes will be corroded through in about 6 to 12 months, resulting in liquid leakage. Once the coolant flows to the battery electrode end, irreversible accidents will occur.

[0013] To sum up, at present, the airtight solder joints of the profile integrated liquid cooling box are too many, the potential risks during welding are large, the connection is not stable and the airtightness is poor. Summary of the Invention

[0014] The purpose of the present invention is to provide a coolant cabinet with high reliability, good durability, good corrosion resistance, and good airtightness.

[0015] To achieve the above object, the present invention provides a coolant cabinet, including a liquid cooling plate, a first side plate, a second side plate, a first flow guiding plate and a second flow guiding plate. The first side plate and the second side plate are located at both ends of the liquid cooling plate. An inlet flow channel and an outlet flow channel are provided inside the liquid cooling plate. The first side plate is provided with an external inlet and an external outlet. A first installation groove is provided on the side of the first side plate facing the liquid cooling plate. The first flow guiding plate is embedded in the first installation groove. The first flow guiding plate is provided with a first inlet flow channel and a first drainage flow channel. The liquid cooling plate is connected to the first side plate, and the first inlet flow channel is communicated with the external inlet and the inlet flow channel. The first drainage flow channel is communicated with the external outlet and the outlet flow channel. A second installation groove is provided on the side of the second side plate facing the liquid cooling plate. The second flow guiding plate is embedded in the second installation groove. The second flow guiding plate is provided with a second inlet flow channel and a second drainage flow channel which are communicated. The liquid cooling plate is connected to the second side plate, and the second inlet flow channel is communicated with the inlet flow channel. The second drainage flow channel is communicated with the outlet flow channel.

[0016] As a preferred solution, a first flow port and a second flow port are provided on the side of the first flow guiding plate. The first flow port is connected to the first port of the inlet flow channel to achieve the communication between the inlet flow channel and the first inlet flow channel. The second flow port is connected to the first port of the outlet flow channel to achieve the communication between the outlet flow channel and the first drainage flow channel. A third flow port and a fourth flow port are provided on the side of the second flow guiding plate. The third flow port is connected to the second port of the inlet flow channel to achieve the communication between the inlet flow channel and the second inlet flow channel. The fourth flow port is connected to the second port of the outlet flow channel to achieve the communication between the outlet flow channel and the second drainage flow channel.

[0017] As a preferred solution, a third installation groove and a fourth installation groove are respectively provided on both sides of the liquid cooling plate. Both sides of the first flow guiding plate are respectively embedded in the first installation groove and the third installation groove. The width of the first flow guiding plate is equal to the sum of the depths of the first installation groove and the third installation groove. Both sides of the second flow guiding plate are respectively embedded in the second installation groove and the fourth installation groove. The width of the second flow guiding plate is equal to the sum of the depths of the second installation groove and the fourth installation groove.

[0018] As a preferred solution, first installation steps are provided on both sides of the first flow guiding plate, and second installation steps are provided on both sides of the second flow guiding plate, so that the cross sections of the first flow guiding plate, the second flow guiding plate, the first installation groove and the second installation groove are convex-shaped.

[0019] As a preferred solution, the cross-sectional area of the second liquid inlet channel gradually decreases from the side close to the liquid inlet channel to the side close to the second liquid discharge channel, so that a spraying port is formed at the connection between the second liquid inlet channel and the second liquid discharge channel.

[0020] As a preferred solution, the liquid inlet channel and the liquid outlet channel are respectively located in the right half and the left half of the liquid cooling plate. The second liquid inlet channel includes a communicating diversion section and a pressurizing section. The diversion section is communicated with the liquid inlet channel, and the pressurizing section is communicated with the second liquid discharge channel. The diversion section and the pressurizing section are respectively located in the right half and the left half of the second side plate. The second liquid discharge channel is located in the left half of the second side plate, and the second liquid discharge channel is closer to the liquid outlet channel than the pressurizing section.

[0021] As a preferred solution, a first anti-backflow step is provided on the side of the diversion section close to the pressurizing section. The first anti-backflow step forms a stepped structure at the connection between the diversion section and the pressurizing section. The height of one side of the diversion section is higher than that of one side of the pressurizing section. The middle of the pressurizing section is communicated with the second liquid discharge channel, and the pressurizing section is provided with a second anti-backflow step, so that one side of the pressurizing section close to the diversion section is higher than the side of the pressurizing section far from the diversion section.

[0022] As a preferred solution, the second liquid inlet channel and the second liquid discharge channel are formed by arranging cavities on the second diversion plate.

[0023] As a preferred solution, the side walls of the first liquid inlet channel, the first liquid discharge channel, the second liquid inlet channel and the second liquid discharge channel are all arc-shaped structures.

[0024] As a preferred solution, two notches are provided on the side of the first diversion plate away from the liquid cooling plate. When the first diversion plate is embedded in the first installation groove, the notches and the first installation groove form the first liquid inlet channel and the first liquid discharge channel.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] The present invention sets a first guide plate and a second guide plate, and sets a first installation groove on the first side plate and a second installation groove on the second side plate. The first guide plate is embedded in the first installation groove, and the second guide plate is embedded in the second installation groove. Flow channels are processed on the first guide plate and the second guide plate to separate the liquid inlet cavity and the liquid outlet cavity of the first side plate and the second side plate. The present invention adopts the method of inlaying the guide plate into the side plate, canceling the side plate, thus canceling the welding of the middle plug and the welding of the side sealing plate, realizing the reduction of welding points. The reduction of welding points not only reduces the welding, grinding and testing processes after welding, simplifies the processing technology and reduces the cost, but also does not require drilling and grooving on the base material of these parts, thereby improving the integrity and stability of the structure. By adopting the method of inlaying the guide plate and the side plate, the present invention reduces the welding points and improves the reliability, durability, corrosion resistance and airtightness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is an exploded view of an existing liquid cooling box using an integrated profile.

[0028] Figure 2 FIG. is a schematic structural diagram of an existing front plug.

[0029] Figure 3 FIG. is a schematic structural diagram of an existing rear plug.

[0030] Figure 4 FIG. is an exploded view of a coolant cabinet according to an embodiment of the present invention.

[0031] Figure 5 FIG. is an exploded view of the connection between the second guide plate and the second side plate according to an embodiment of the present invention.

[0032] Figure 6 FIG. is a longitudinal sectional view of the second guide plate according to the second embodiment of the present invention.

[0033] Figure 7 FIG. is an exploded view of the connection between the first guide plate and the first side plate according to the third embodiment of the present invention.

[0034] Figure 8 FIG. is a schematic structural diagram of the first guide plate according to the fourth embodiment of the present invention.

[0035] In the figure, 1 - front plug; 2 - rear plug; 3 - left plug; 4 - right plug; 5 - bottom plate; 6 - middle plug block of the front plug; 7 - left water channel sealing plate of the front plug; 8 - right water channel sealing plate of the front plug; 9 - middle plug block of the rear plug; 10 - outer sealing plate of the rear plug; 11 - left lower water channel sealing plate of the rear plug; 12 - left upper water channel sealing plate of the rear plug; 13 - outer sealing plate of the rear plug; 14 - right lower water channel sealing plate of the rear plug; 15 - right upper water channel sealing plate of the rear plug;

[0036] 16 - Liquid cooling plate; 17 - First side plate; 18 - Second side plate; 19 - First flow - guiding plate; 20 - Second flow - guiding plate; 21 - Inlet liquid flow channel; 22 - Outlet liquid flow channel; 23 - First installation groove; 24 - First inlet liquid flow channel; 25 - First drain liquid flow channel; 26 - Second installation groove; 27 - Second inlet liquid flow channel; 2701 - Flow - guiding section; 2702 - Pressure - boosting section; 28 - Second drain liquid flow channel; 29 - First flow port; 30 - Second flow port; 31 - Third flow port; 32 - Fourth flow port; 33 - Spraying port; 34 - First installation step; 35 - Second installation step; 36 - First anti - backflow step; 37 - Second anti - backflow step; 38 - Partition beam; 39 - Third side plate; 40 - Fourth side plate. Detailed implementation mode

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0040] Embodiment 1

[0041] As Figures 4 to 8As shown in the figure, a coolant cabinet according to a preferred embodiment of the present invention includes a liquid cooling plate 16, a first side plate 17, a second side plate 18, a first flow guide plate 19 and a second flow guide plate 20. The first side plate 17 and the second side plate 18 are located at both ends of the liquid cooling plate 16. An inlet flow channel 21 and an outlet flow channel 22 are provided inside the liquid cooling plate 16. The first side plate 17 is provided with an external inlet and an external outlet. The side surface of the first side plate 17 facing the liquid cooling plate 16 is provided with a first installation groove 23. The first flow guide plate 19 is embedded in the first installation groove 23. The first flow guide plate 19 is provided with a first inlet flow channel 24 and a first drain flow channel 25. The liquid cooling plate 16 is connected to the first side plate 17, and the first inlet flow channel 24 is communicated with the external inlet and the inlet flow channel 21. The first drain flow channel 25 is communicated with the external outlet and the outlet flow channel 22. The side surface of the second side plate 18 facing the liquid cooling plate 16 is provided with a second installation groove 26. The second flow guide plate 20 is embedded in the second installation groove 26. The second flow guide plate 20 is provided with a second inlet flow channel 27 and a second drain flow channel 28 which are communicated. The liquid cooling plate 16 is connected to the second side plate 18, and the second inlet flow channel 27 is communicated with the inlet flow channel 21. The second drain flow channel 28 is communicated with the outlet flow channel 22. The coolant enters the first inlet flow channel 24 through the external inlet of the first side plate 17, then passes through the inlet flow channel 21 of the liquid cooling plate 16, then enters the second inlet flow channel 27 of the second side plate 18, then flows to the second drain flow channel 28 of the second side plate 18, then flows to the outlet flow channel 22 of the liquid cooling plate 16, then enters the first drain flow channel 25 of the first side plate 17, and finally is discharged through the external outlet of the first side plate 17. In this embodiment, by setting the first flow guide plate 19 and the second flow guide plate and providing the first installation groove 23 on the first side plate 17 and the second installation groove 26 on the second side plate 18, the first flow guide plate 19 is embedded in the first installation groove 23, the second flow guide plate 20 is embedded in the second installation groove 26, and flow channels are processed on the first flow guide plate 19 and the second flow guide plate to separate the inlet cavity and the outlet cavity of the first side plate 17 and the second side plate 18. In this embodiment, the method of embedding the flow guide plate into the side plate is adopted to cancel the side plate, thereby canceling the welding of the middle plug and the welding of the side sealing plate, realizing the reduction of welding points. The reduction of welding points not only reduces the welding, grinding and testing processes after welding, simplifies the processing technology and reduces the cost, but also does not require punching and grooving on the base material of these parts, thereby improving the integrity and stability of the structure. In this embodiment, by adopting the method of inlaying the flow guide plate and the side plate, the welding points are reduced, and the reliability, durability, corrosion resistance and airtightness of the product are improved.

[0042] Furthermore, the side of the first guide plate 19 of this embodiment is provided with a first flow channel opening 29 and a second flow channel opening 30, the first flow channel opening 29 is connected to the first port of the liquid inlet channel 21 to realize the communication between the liquid inlet channel 21 and the first liquid inlet channel 24, and the second flow channel opening 30 is connected to the first port of the liquid outlet channel 22 to realize the communication between the liquid outlet channel 22 and the first liquid discharge channel 25; the side of the second guide plate 20 is provided with a third flow channel opening 31 and a fourth flow channel opening 32, the third flow channel opening 31 is connected to the second port of the liquid inlet channel 21 to realize the communication between the liquid inlet channel 21 and the second liquid inlet channel 27, and the fourth flow channel opening 32 is connected to the second port of the liquid outlet channel 22 to realize the communication between the liquid outlet channel 22 and the second liquid discharge channel 28. In this embodiment, a plurality of first flow channel openings 29, second flow channel openings 30, third flow channel openings 31, and fourth flow channel openings 32 are provided. The plurality of first flow channel openings 29 are spaced apart along the length of the first liquid inlet channel 24, the plurality of second flow channel openings 30 are spaced apart along the length of the first liquid discharge channel 25, the plurality of third flow channel openings 31 are spaced apart along the length of the second liquid inlet channel 27, and the plurality of fourth flow channel openings 32 are spaced apart along the length of the second liquid discharge channel 28. The plurality of flow channel openings are provided along the length of the channels to ensure that the coolant enters uniformly at the inlet of each channel and has a pressurized effect, thereby promoting the flow of the coolant.

[0043] Furthermore, in this embodiment, third and fourth mounting grooves are provided on either side of the liquid cooling plate 16. The first guide plate 19 is inserted into the first and third mounting grooves, respectively, with the width of the first guide plate 19 being equal to the sum of the depths of the first and third mounting grooves. The second guide plate 20 is inserted into the second and fourth mounting grooves, respectively, with the width of the second guide plate 20 being equal to the sum of the depths of the second and fourth mounting grooves. This ensures a tighter and more stable connection between the first and second guide plates 19, 20 and the liquid cooling plate 16, while also ensuring more accurate alignment of the flow paths of the first and second guide plates 19, 20 with those of the liquid cooling plate 16.

[0044] In this embodiment, both the first side plate 17 and the second side plate 18 are L-shaped structures. The first mounting groove 23 is provided in the horizontal portion of the first side plate 17, and the second mounting groove 26 is provided in the horizontal portion of the second side plate 18. The ends of the liquid cooling plate 16 are respectively connected to the horizontal portion of the first side plate 17 and the horizontal portion of the second side plate 18. Optionally, the liquid cooling plate 16 is friction stir welded to the horizontal portion of the first side plate 17 and the horizontal portion of the second side plate 18.

[0045] In addition, first mounting steps 34 are provided on both sides of the first flow guide plate 19 of this embodiment, and second mounting steps 35 are provided on both sides of the second flow guide plate 20, such that the cross-sections of the first flow guide plate 19, the second flow guide plate 20, the first mounting groove 23, and the second mounting groove 26 are convex-shaped. The first flow guide plate 19 is inserted into the first mounting groove 23 from the side, and the second flow guide plate 20 is inserted into the second mounting groove 26 from the side. The first mounting steps 34 and the second mounting steps 35 can achieve positioning and prevent lateral displacement of the first flow guide plate 19 and the second flow guide plate 20.

[0046] The liquid cooling plate 16 of this embodiment is a rectangular plate. The coolant cabinet further includes a third side plate 39 and a fourth side plate 40. The third side plate 39 and the fourth side plate 40 are connected to the other two sides of the liquid cooling plate 16. The first side plate 17, the second side plate 18, the third side plate 39, and the fourth side plate 40 are connected around the liquid cooling plate 16 to form an accommodation space.

[0047] Embodiment Two

[0048] The difference between this embodiment and Embodiment One is that, on the basis of Embodiment One, this embodiment further describes the second flow guide plate 20.

[0049] In this embodiment, the cross-sectional area of the second liquid inlet channel 27 gradually decreases from the side close to the liquid inlet channel 21 to the side close to the second liquid discharge channel 28, such that a spraying port 33 is formed at the connection between the second liquid inlet channel 27 and the second liquid discharge channel 28. Since the cross-sectional area of the second liquid inlet channel 27 gradually decreases, the coolant is guided and compressed, increasing the water flow pressure at the water outlet end and achieving a pressurizing effect.

[0050] More specifically, the liquid inlet channel 21 and the liquid outlet channel 22 are respectively located in the right half and the left half of the liquid cooling plate 16. The second liquid inlet channel 27 includes a communicating diversion section 2701 and a pressurizing section 2702. The diversion section 2701 is communicated with the liquid inlet channel 21, and the pressurizing section 2702 is communicated with the second liquid discharge channel 28. The diversion section 2701 and the pressurizing section 2702 are respectively located in the right half and the left half of the second side plate 18. The second liquid discharge channel 28 is located in the left half of the second side plate 18, and the second liquid discharge channel 28 is closer to the liquid outlet channel 22 than the pressurizing section 2702. The second liquid inlet channel 27 of this embodiment occupies most of the space of the second flow guide plate 20, which can reduce the residence space of the coolant in the second side plate 18, thereby preventing the reduction of the coolant flow rate.

[0051] The right half and the left half of the liquid cooling plate 16 of this embodiment are separately manufactured. After manufacturing, the right half and the left half of the liquid cooling plate 16 are connected by welding.

[0052] Further, on one side of the diversion section 2701 close to the pressurization section 2702, a first anti-backflow step 36 is provided. The first anti-backflow step 36 forms a stepped structure at the connection between the diversion section 2701 and the pressurization section 2702, and the height on one side of the diversion section 2701 is higher than that on one side of the pressurization section 2702; the middle of the pressurization section 2702 is communicated with the second liquid drainage channel 28, and the pressurization section 2702 is provided with a second anti-backflow step 37, so that the side of the pressurization section 2702 close to the diversion section 2701 is higher than the side of the pressurization section 2702 far from the diversion section 2701. The first anti-backflow step 36 and the second anti-backflow step 37 can guide the flow of the coolant and prevent backflow.

[0053] The second liquid inlet channel 27 and the second liquid drainage channel 28 of this embodiment are formed by arranging cavities on the second diversion plate 20. Figure 6 is a longitudinal sectional view of the second diversion plate 20 of this embodiment. The second diversion plate 20 in this figure has a top surface, so that the second liquid inlet channel 27 and the second liquid drainage channel 28 are cavities. It should be noted that the second liquid inlet channel 27 and the second liquid drainage channel 28 of the second diversion plate 20 of the present invention are formed by arranging grooves on the top surface of the second diversion plate 20. The second liquid inlet channel 27 and the second liquid drainage channel 28 of this embodiment adopt the form of cavities, which can prevent leakage between the second liquid inlet channel 27 and the second liquid drainage channel 28, and more orderly ensure the flow direction of the coolant in the second liquid inlet channel 27 and the pressurization function.

[0054] The other structures of this embodiment are the same as those of the first embodiment, and will not be described in detail here.

[0055] Embodiment Three

[0056] The difference between this embodiment and the second embodiment is that, on the basis of the third embodiment, the structure of the first diversion plate 19 is further described in this embodiment.

[0057] As Figure 7 shown, two notches are provided on the side of the first diversion plate 19 far from the liquid cooling plate 16. When the first diversion plate 19 is embedded in the first installation groove 23, the notches and the first installation groove 23 form a first liquid inlet channel 24 and a first liquid drainage channel 25. The part between the two notches provided on the first diversion plate 19 is a dividing beam 38. When the first diversion plate 19 is embedded in the first installation groove 23, the dividing beam 38 divides the first installation groove 23 into two parts, thereby forming the first liquid inlet channel 24 and the first liquid drainage channel 25. The function of the dividing beam 38 is the same as that of the middle plug of the front baffle in the prior art, but in this embodiment, the first diversion plate 19 is used in an embedded manner, so welding is not required.

[0058] The two notches of the first diversion plate 19 of this embodiment are rectangular notches.

[0059] The other structures of this embodiment are the same as those of the second embodiment, and will not be elaborated here.

[0060] Embodiment Four

[0061] The difference between this embodiment and the second embodiment is that the first liquid inlet channel 24 and the first liquid discharge channel 25 of this embodiment are different from those of the third embodiment.

[0062] In this embodiment, the side walls of the first liquid inlet channel 24, the first liquid discharge channel 25, the second liquid inlet channel 27, and the second liquid discharge channel 28 are all arc-shaped structures. By adopting the arc-shaped structure, the resistance of the coolant flow can be reduced.

[0063] As Figure 8 shown, the two notch straight segments of the first deflector 19 of this embodiment and the arc segments at both ends of the straight segments enclose to achieve the effect of reducing resistance.

[0064] The other structures of this embodiment are the same as those of the second embodiment, and will not be elaborated here.

[0065] In summary, the embodiment of the present invention provides a coolant cabinet. By setting the first deflector 19 and the second deflector 20, and arranging a first installation groove 23 on the first side plate 17 and a second installation groove 26 on the second side plate 18, the first deflector 19 is embedded in the first installation groove 23, the second deflector 20 is embedded in the second installation groove 26, and channels are processed on the first deflector 19 and the second deflector 20 to separate the liquid inlet chambers and the liquid discharge chambers of the first side plate 17 and the second side plate 18. The embodiment of the present invention adopts the method of embedding the deflector into the side plate to cancel the side plate, thereby canceling the welding of the middle plug and the welding of the side seal plate, realizing the reduction of welding points. The reduction of welding points not only reduces the welding and the subsequent grinding and testing processes, simplifies the processing technology, and reduces the cost, but also does not require drilling and grooving on the base material of these parts, thereby improving the integrity and stability of the structure. The embodiment of the present invention reduces the welding points by adopting the method of embedding the deflector and the side plate, and improves the reliability, durability, corrosion resistance, and airtightness of the product.

[0066] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A coolant cabinet, characterized in that, It includes a liquid cooling plate (16), a first side plate (17), a second side plate (18), a first flow guiding plate (19) and a second flow guiding plate (20). The first side plate (17) and the second side plate (18) are located at both ends of the liquid cooling plate (16). An inlet liquid flow channel (21) and an outlet liquid flow channel (22) are provided inside the liquid cooling plate (16). The first side plate (17) is provided with an external liquid inlet and an external liquid outlet. The side of the first side plate (17) facing the liquid cooling plate (16) is provided with a first installation groove (23). The first flow guiding plate (19) is embedded in the first installation groove (23). The first flow guiding plate (19) is provided with a first liquid inlet flow channel (24) and a first liquid drainage flow channel (25). The liquid cooling plate (16) is connected to the first side plate (17), and the first liquid inlet flow channel (24) is communicated with the external liquid inlet and the inlet liquid flow channel (21). The first liquid drainage flow channel (25) is communicated with the external liquid outlet and the outlet liquid flow channel (22). The side of the second side plate (18) facing the liquid cooling plate (16) is provided with a second installation groove (26). The second flow guiding plate (20) is embedded in the second installation groove (26). The second flow guiding plate (20) is provided with a second liquid inlet flow channel (27) and a second liquid drainage flow channel (28) which are communicated. The liquid cooling plate (16) is connected to the second side plate (18), and the second liquid inlet flow channel (27) is communicated with the inlet liquid flow channel (21). The second liquid drainage flow channel (28) is communicated with the outlet liquid flow channel (22); Third installation grooves and fourth installation grooves are respectively provided on both sides of the liquid cooling plate (16). Both sides of the first flow guiding plate (19) are respectively embedded in the first installation groove (23) and the third installation groove. The width of the first flow guiding plate (19) is equal to the sum of the depths of the first installation groove (23) and the third installation groove. Both sides of the second flow guiding plate (20) are respectively embedded in the second installation groove (26) and the fourth installation groove. The width of the second flow guiding plate (20) is equal to the sum of the depths of the second installation groove (26) and the fourth installation groove.

2. The coolant cabinet according to claim 1, characterized in that A first flow port (29) and a second flow port (30) are provided on the side of the first flow guiding plate (19). The first flow port (29) is connected to the first port of the inlet liquid flow channel (21) to realize the communication between the inlet liquid flow channel (21) and the first liquid inlet flow channel (24). The second flow port (30) is connected to the first port of the outlet liquid flow channel (22) to realize the communication between the outlet liquid flow channel (22) and the first liquid drainage flow channel (25); A third flow port (31) and a fourth flow port (32) are provided on the side of the second flow guiding plate (20). The third flow port (31) is connected to the second port of the inlet liquid flow channel (21) to realize the communication between the inlet liquid flow channel (21) and the second liquid inlet flow channel (27). The fourth flow port (32) is connected to the second port of the outlet liquid flow channel (22) to realize the communication between the outlet liquid flow channel (22) and the second liquid drainage flow channel (28).

3. The coolant cabinet according to claim 1, characterized in that, Both sides of the first flow deflector (19) are provided with first mounting steps (34), and both sides of the second flow deflector (20) are provided with second mounting steps (35), so that the cross-sections of the first flow deflector (19), the second flow deflector (20), the first mounting groove (23) and the second mounting groove (26) are convex-shaped.

4. The coolant cabinet according to claim 1, wherein, The cross-sectional area of the second liquid inlet channel (27) gradually decreases from the side close to the liquid inlet channel (21) to the side close to the second liquid discharge channel (28), so that a spraying port (33) is formed at the connection between the second liquid inlet channel (27) and the second liquid discharge channel (28).

5. The coolant cabinet according to claim 4, characterized in that, The liquid inlet channel (21) and the liquid outlet channel (22) are respectively located in the right half part and the left half part of the liquid cooling plate (16). The second liquid inlet channel (27) includes a communicating diversion section (2701) and a pressurizing section (2702). The diversion section (2701) is communicated with the liquid inlet channel (21), and the pressurizing section (2702) is communicated with the second liquid discharge channel (28). The diversion section (2701) and the pressurizing section (2702) are respectively located in the right half part and the left half part of the second side plate (18). The second liquid discharge channel (28) is located in the left half part of the second side plate (18), and the second liquid discharge channel (28) is closer to the liquid outlet channel (22) than the pressurizing section (2702).

6. The coolant cabinet according to claim 5, characterized in that, A first mounting step (36) is provided on the side of the diversion section (2701) close to the pressurizing section (2702). The first mounting step (36) forms a stepped structure at the connection between the diversion section (2701) and the pressurizing section (2702). The height of one side of the diversion section (2701) is higher than the height of one side of the pressurizing section (2702). The middle of the pressurizing section (2702) is communicated with the second liquid discharge channel (28). The pressurizing section (2702) is provided with a second mounting step (37), so that the side of the pressurizing section (2702) close to the diversion section (2701) is higher than the side of the pressurizing section (2702) far from the diversion section (2701).

7. The coolant cabinet according to claim 1, wherein, The second liquid inlet channel (27) and the second liquid discharge channel (28) are formed by arranging cavities on the second flow deflector (20).

8. The coolant cabinet according to claim 1, characterized in that, The side walls of the first liquid inlet channel (24), the first liquid discharge channel (25), the second liquid inlet channel (27) and the second liquid discharge channel (28) are all arc-shaped structures.

9. The coolant cabinet according to claim 1, wherein, Two notches are provided on the side of the first flow deflector (19) far from the liquid cooling plate (16). When the first flow deflector (19) is embedded in the first mounting groove (23), the notches and the first mounting groove (23) form the first liquid inlet channel (24) and the first liquid discharge channel (25).

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