Modularized sodium electric heavy truck liquid cooling subrack structure

Abstract

The invention relates to the technical field of sodium battery power battery packs, in particular to a modularized sodium battery heavy truck liquid cooling plug-in box structure which comprises a plug-in box mechanism, and a sodium battery module is arranged in the plug-in box mechanism. The plug-in box mechanism is composed of a liquid cooling bottom plate and a box cover, a liquid cooling cavity is formed in the liquid cooling bottom plate, partition plates which are distributed in a staggered mode are arranged in the liquid cooling cavity, one end of each partition plate is provided with a one-way circulation assembly, and the one-way circulation assemblies and the partition plates divide the liquid cooling cavity into a plurality of liquid cooling areas; a plurality of buffer plates are arranged in the liquid cooling area in an array manner; the liquid cooling bottom plate is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the liquid cooling cavity, and the problems that when a heavy truck is frequently braked in the running process, cooling liquid in the battery plug-in box shakes due to inertia, so that the cooling liquid is distributed unevenly, the heat dissipation effect and the temperature uniformity of the battery module are affected, and the service life of the battery module is prolonged are solved. The aging of the battery is accelerated; and potential safety hazards are possibly caused.

Description

Technical Field

[0001] The present invention relates to the technical field of sodium battery power battery packs, and more particularly to a modular sodium battery heavy-duty card liquid-cooling plug-in box structure. Background Art

[0002] At present, new energy vehicles are becoming more and more popular in the market. Among them, new energy heavy-duty trucks mainly use lithium iron phosphate battery plug-ins. Although the energy density of lithium-ion batteries is slightly better than that of sodium batteries, sodium-ion batteries perform particularly well in terms of safety and cost-effectiveness. In addition, due to the relatively complex operating environment of new energy heavy-duty trucks, higher requirements are placed on the safety and stability of new energy heavy-duty truck battery plug-ins.

[0003] In addition, when new energy heavy-duty trucks frequently brake and stop during driving, the coolant inside the battery plug-in box will shake violently due to inertia. This shaking not only aggravates the uneven distribution of the coolant, but may also cause excessive or insufficient coolant in local areas, thereby affecting the overall heat dissipation effect of the battery module.

[0004] The uneven distribution and violent shaking of the coolant not only reduce the heat dissipation efficiency of the battery plug-in box, but may also cause thermal shock to the battery module, affecting the temperature uniformity and consistency of the battery. In the long run, it will accelerate the aging process of the battery and may even cause serious safety problems such as battery thermal runaway.

[0005] In order to solve the above problems, a modular liquid-cooled plug-in box structure for sodium-electric heavy-duty trucks is proposed. Summary of the Invention

[0006] (1) Technical problems solved

[0007] In response to the problems existing in the prior art, the present invention provides a modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure to solve the problem mentioned in the background technology that when new energy heavy-duty trucks frequently brake and stop during driving, the coolant inside the battery plug-in box will shake violently due to inertia, resulting in uneven distribution of the coolant, affecting the heat dissipation effect and temperature uniformity of the battery module, accelerating battery aging and possibly causing safety hazards.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure, comprising a plug-in box mechanism, wherein a sodium-electric module is arranged inside the plug-in box mechanism;

[0010] The plug-in box mechanism consists of a liquid-cooling base plate and a box cover. A liquid-cooling cavity is defined in the liquid-cooling base plate, and staggered partition plates are provided in the liquid-cooling cavity. A one-way flow component is provided at one end of the partition plate. The one-way flow component and the partition plate divide the liquid-cooling cavity into multiple liquid-cooling zones. Multiple buffer plates are arranged in an array in each liquid-cooling zone.

[0011] The liquid cooling base plate is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are in communication with the liquid cooling cavity, and the flow direction of the one-way flow component is from the liquid inlet to the liquid outlet.

[0012] The present invention is further configured such that a rotation groove and a rod insertion groove are formed at one end of the partition plate, and the rotation groove and the rod insertion groove are communicated;

[0013] The one-way circulation component includes a rotating shaft arranged in the rotating groove, a circulation roller valve arranged on the rotating shaft, and a rotation-stopping rod arranged in the rod insertion groove.

[0014] The present invention is further configured such that the rotating shaft member includes a rotating shaft that is rotationally matched with the rotating groove, and three groups of clamping grooves formed on the circumferential side wall of the rotating shaft.

[0015] The present invention is further configured such that the circulation roller valve comprises a shaft roller fixedly connected to the rotating shaft, and three groups of closed blades arranged in a circumferential array on the shaft roller.

[0016] The present invention is further configured such that the sodium battery module is composed of a sodium ion battery cell, an aerogel, a series-connected aluminum target, positive and negative aluminum targets, a voltage and temperature acquisition harness, a module end plate, a steel belt, and an insulating member;

[0017] The sodium ion battery cells are provided in multiple groups, and aerogels are provided between the multiple groups of sodium ion battery cells, the multiple groups of sodium ion battery cells are connected in series through series aluminum targets, and the multiple groups of sodium ion battery cells, aerogels and series aluminum targets are combined into a battery module, and the module end plates are provided at both ends of the battery module, and the two groups of module end plates and the battery module are bound by steel strips;

[0018] The battery cell modules are provided in multiple groups, and the multiple groups of battery cell modules are connected in series through positive and negative aluminum targets.

[0019] The present invention is further configured such that the voltage and temperature acquisition harness is electrically connected to the plurality of sodium ion battery cells by bolt fixation;

[0020] Insulation parts are fixedly installed on the top of the battery cell modules.

[0021] The present invention is further configured such that an explosion-proof valve, a power plug-in and a communication plug-in are fixedly mounted on the liquid cooling base plate by bolts.

[0022] The present invention is further configured such that an electrical bracket is fixedly mounted on one end of the liquid cooling base plate, and a battery management module and a fuse are fixedly mounted on the electrical bracket;

[0023] The battery management module is connected to the voltage and temperature acquisition harness and the communication plug-in.

[0024] The present invention is further configured such that the fuse is fixedly connected to the sodium battery module via a copper busbar, and the other end of the fuse is fixedly connected to the power plug-in via a copper busbar.

[0025] The present invention is further configured such that a temperature detection tube is provided at the top of the sodium battery module.

[0026] (3) Beneficial effects

[0027] Compared with the prior art, the present invention provides a modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure, which has the following beneficial effects:

[0028] 1. The present invention forms multiple liquid cooling zones through the staggered distribution of partition partitions and one-way circulation components in the liquid cooling base plate, and uses buffer plates to reduce coolant sloshing, ensuring that the coolant is evenly distributed in the plug-in box, effectively improving heat dissipation efficiency and maintaining the uniform temperature of the battery module.

[0029] 2. The present invention combines modular design with comprehensive insulation protection, such as explosion-proof valves, temperature probes, and voltage and temperature acquisition harnesses. This allows for timely responses to battery overheating, overvoltage, and other abnormal conditions, effectively preventing safety incidents such as thermal runaway and improving the overall safety and stability of new energy heavy-duty truck battery boxes.

[0030] 3. The modular design of the present invention makes the installation and subsequent maintenance of the liquid-cooling plug-in box of the sodium-electric heavy-duty truck more convenient. By pre-assembling various components such as the sodium-electric module, liquid-cooling base plate, box cover, etc., and then hoisting the entire unit onto the heavy-duty truck, the installation time is greatly shortened, the maintenance cost is reduced, and the overall operating efficiency of the vehicle is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of the modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure.

[0032] Figure 2 This is a schematic diagram of the exploded structure of the modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure.

[0033] Figure 3 Schematic diagram of the explosion structure of the sodium battery module.

[0034] Figure 4 Schematic diagram of the cross-sectional structure of the liquid cooling base plate.

[0035] Figure 5Schematic diagram of the internal structure of the liquid cooling chamber.

[0036] Figure 6 It is a structural schematic diagram of the rotation groove, rod insertion groove and anti-rotation rod.

[0037] Figure 7 Schematic diagram of the state structure of the circulation roller valve when the anti-rotation rod and the rotating shaft are engaged.

[0038] Figure 8 Schematic diagram of the state structure of the circulation roller valve with four sets of closed blades when the anti-rotation rod and the rotating shaft are engaged.

[0039] Figure: 1. Insertion box mechanism; 101. Liquid cooling base plate; 102. Box cover; 103. Liquid cooling chamber; 104. Partitioning plate; 104a. Rotation slot; 104b. Insertion rod slot; 105. Liquid cooling zone; 106. Buffer plate; 107. Liquid inlet; 108. Liquid outlet; 2. Sodium battery module; 201. Sodium ion battery cell; 202. Aerogel; 203. Series aluminum target; 204. Positive and negative aluminum targets; 205. Voltage And temperature collection harness; 206, module end plate; 207, steel belt; 208, insulation; 3, one-way circulation component; 301, anti-rotation rod; 4, rotating shaft; 401, rotating shaft; 402, snap-in groove; 5, circulation roller valve; 501, shaft roller; 502, closing blade; 6, explosion-proof valve; 7, power plug-in; 8, communication plug-in; 9, electrical bracket; 10, battery management module; 11, fuse; 12, temperature probe. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0042] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0043] For examples, see Figure 1 - Figure 8 A modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure includes a plug-in box mechanism 1, and a sodium-electric module 2 is arranged inside the plug-in box mechanism 1;

[0044] The insert mechanism 1 consists of a liquid-cooling base plate 101 and a cover 102. A liquid-cooling chamber 103 is defined within the liquid-cooling base plate 101. Staggered partition plates 104 are disposed within the liquid-cooling chamber 103. A one-way flow assembly 3 is disposed at one end of the partition plates 104. The one-way flow assembly 3 and the partition plates 104 divide the liquid-cooling chamber 103 into multiple liquid-cooling zones 105. Multiple buffer plates 106 are arrayed within the liquid-cooling zones 105.

[0045] The liquid cooling base plate 101 is provided with a liquid inlet 107 and a liquid outlet 108 , which are in communication with the liquid cooling chamber 103 . The flow direction of the one-way flow component 3 is from the liquid inlet 107 to the liquid outlet 108 .

[0046] The liquid-cooling base plate 101 is a concave box body, which is paired and sealed with the box cover 102 to wrap the sodium battery module 2 inside. The inner wall of the box cover 102 is affixed with insulating sheets around it, which is used to achieve electrical insulation. The box cover 102 and the liquid-cooling base plate 101 are fixedly connected by bolts, and a sealing ring is provided between their contact surfaces, which is conducive to achieving waterproof and airtightness of the sodium battery liquid-cooled plug-in box. The liquid cooling cavity 103 is opened at the bottom of the concave box body of the liquid cooling base plate 101, and cooling liquid flows in the liquid cooling cavity 103. When the sodium battery module 2 is placed in the plug-in mechanism 1, the cooling liquid flowing in the liquid cooling cavity 103 can dissipate heat and cool the sodium battery module 2.

[0047] Furthermore, the coolant enters through the liquid inlet 107 and flows into the liquid cooling cavity 103, and then flows to the next liquid cooling zone 105 through the one-way circulation component 3, so that the coolant circulates in the liquid cooling cavity 103. Moreover, since the partition plates 104 are staggered in the liquid cooling cavity 103, the specific distribution is as follows: Figure 5 As shown, the channels connecting the multiple liquid cooling zones 105 are S-shaped and reciprocating, so that the coolant is more uniform when flowing in the liquid cooling cavity 103, thereby improving the cooling effect. Because the channels finally formed at the connecting parts of the multiple liquid cooling zones 105 are S-shaped and reciprocating, the multiple one-way flow components 3 are alternately arranged at both ends of the liquid cooling cavity 103.

[0048] During the driving of a heavy truck, when a brake is applied, the inertia of the driving will cause the coolant to collide in the forward direction, and the coolant after the collision will rebound, resulting in uneven distribution of the coolant in the liquid cooling chamber 103 in a short period of time, thereby affecting the heat dissipation effect of the sodium battery module 2.

[0049] Therefore, in the present invention, by setting up multiple partition partitions 104 and one-way circulation components 3, when the heavy truck stops, the coolant hits the partition partitions 104 and the one-way circulation components 3, so that the coolant in multiple liquid cooling zones 105 will not be mixed together, but will remain in the current liquid cooling zone. Moreover, since the volume of the liquid cooling zone 105 is smaller than the entire liquid cooling cavity 103, the coolant can quickly return to stability after impacting in the liquid cooling zone 105, so that the coolant in the entire liquid cooling cavity 103 is less turbulent when stopping, and is easy to return to stability, thereby maintaining uniform circulation and heat dissipation.

[0050] It should be noted that, when the present invention is installed and used, there are requirements for aligning the installation position. First, after installation, the liquid inlet 107 needs to be located in front of the liquid outlet 108, where the front represents the forward direction of the truck. After the coolant enters from the liquid inlet 107, it passes through multiple S-shaped reciprocating liquid cooling zones 105, and then flows out from the liquid outlet 108. Therefore, when the coolant is in normal circulation, its circulation direction is opposite to the forward direction. Therefore, when the coolant passes through the one-way circulation component 3, the coolant is transported backward. Then, when the heavy truck stops, the coolant will collide in the forward direction under the action of inertia, and the one-way circulation component 3 can only transport the coolant backward, so that after the heavy truck stops and hits the one-way circulation component, the coolant cannot flow to the adjacent liquid cooling zone 105. As a result, after the heavy truck stops, the coolant can only shake in the liquid cooling zone 105 to which it currently belongs, reducing its vibration intensity and passing through a smaller space, so that its vibration can quickly stabilize.

[0051] In addition, it should be noted that the axial direction of the partition plate 104 is perpendicular to the forward direction of the heavy truck, so that the coolant hits the partition plate 104 during the collision.

[0052] Preferably, a plurality of buffer plates 106 are further provided in the plurality of liquid cooling zones 105 so that the cooling liquid in the liquid cooling zone 105 is further buffered after the cooling liquid stops, thereby further reducing the vibration intensity of the cooling liquid when the cooling liquid stops.

[0053] A rotation groove 104a and a rod insertion groove 104b are formed at one end of the partition plate 104, and the rotation groove 104a and the rod insertion groove 104b are connected;

[0054] The one-way circulation component 3 includes a rotating shaft 4 disposed in the rotating groove 104a, a circulation roller valve 5 disposed on the rotating shaft 4, and a rotation-stopping rod 301 disposed in the rod insertion groove 104b.

[0055] Both ends of the circulation roller valve 5 are provided with a rotating shaft 4, and a rotating groove 104a for the rotating shaft 4 is provided on the liquid cooling bottom plate 101 and the partition partition 104, wherein the rotating groove 104a on the partition partition 104 is provided with a connecting rod slot 104b. After the installation of this device, the rod slot 104b is in a vertical state, so that under the action of gravity, the anti-rotation rod 301 can automatically move down and engage with the rotating shaft 4 to achieve anti-rotation. It should be noted that when the one-way circulation component 3 is normally conveying the coolant, the rotating shaft 4 The direction of rotation will push the anti-rotation rod 301 to move upward, and when the heavy truck stops, when the coolant hits the circulation roller valve 5 in the forward direction, the thrust of the impact causes the rotation of the rotating shaft 4 to change, thereby causing the anti-rotation rod 301 to move downward and engage with the rotating shaft 4, so that the circulation roller valve 5 cannot rotate, and then the coolant in the liquid cooling zone 105 is controlled to avoid circulation mixing, resulting in an increase in coolant in some liquid cooling zones 105 and a decrease in coolant in some liquid cooling zones 105, thereby forming an uneven distribution of coolant.

[0056] In the process of the anti-rotation rod 301 moving up and down, its ends are both located in the rod insertion groove 104b.

[0057] The rotating shaft 4 includes a rotating shaft 401 that is rotatably matched with the rotating groove 104 a , and three sets of engaging grooves 402 formed on the circumferential side wall of the rotating shaft 401 .

[0058] like Figure 7 As shown, the arc surface of the clamping groove 402 and the circumferential side wall of the rotating shaft 401 are smoothly transitioned, and the straight surface of the clamping groove 402 is in contact with each other, thereby preventing the rotating shaft 4 from rotating.

[0059] by Figure 7 To further elaborate on the example, when the coolant circulates normally, the coolant pushes the circulation roller valve 5 to rotate clockwise. When the rotating shaft 401 rotates, the stop rod 301 will enter the circumferential outer wall of the rotating shaft 401 along the arc surface of the clamping groove 402. During this process, the stop rod 301 gradually moves upward. When it rotates 120 degrees, the stop rod 301 will enter the next clamping groove 402 again from the circumferential side wall of the rotating shaft 401, and correspond to the arc surface of the clamping groove 402 again. Then, under the action of gravity, the stop rod 301 moves downward again.

[0060] When the heavy truck brakes during driving, the coolant pushes the circulation roller valve 5 to rotate counterclockwise, and the stop rod 301 will move in the opposite direction along the circumferential side wall of the rotating shaft 401 toward the straight surface of the clamping groove 402. When the rotating shaft 401 rotates counterclockwise until the straight surface of the clamping groove 402 contacts the stop rod 301, the rotating shaft 401 can no longer rotate, and the circulation roller valve 5 can no longer rotate, thereby preventing the coolant from entering the adjacent liquid cooling zone 105.

[0061] The circulation roller valve 5 comprises a shaft roller 501 fixedly connected to the rotating shaft 401 , and three groups of closed blades 502 arranged in a circumferential array on the shaft roller 501 .

[0062] The end of the shaft roller 501 is fixedly connected to the rotating shaft 401, and it rotates along with the rotating shaft 401. When the closing blades 502 rotate to zero contact with the bottom end of the liquid cooling chamber 103, the two liquid cooling zones 105 are closed. When the coolant circulates normally, when it flows through the one-way circulation component 3, the closing blades 502 do not play a role in sealing and blocking the coolant because the rotating shaft 401 can rotate. When the heavy truck brakes, the anti-rotation rod 301 and the vertical surface of the clamping groove 402 conflict. At this time, one of the three groups of closing blades 502 is in a vertical state and zero contact with the bottom end of the liquid cooling chamber 103, thereby closing the liquid cooling zone 105.

[0063] It should be noted that the three sets of closed blades 502 are arranged so that when one set of closed blades 502 is vertically zero-close to the bottom of the liquid cooling chamber 103, the other two sets of closed blades 502 are as follows: Figure 7 As shown, it is arranged to be tilted upward. When the heavy truck stops, the inertia of the coolant will collide with the vertical closed blades 502 and the tilted upward closed blades 502. Since the inertia directions of the vertical closed blades 502 and the coolant are perpendicular to each other, the impact force on the coolant is not lost, and there is a deflection angle between the tilted upward closed blades 502 and the inertia direction of the coolant, so the impact force will be deflected, so that the force pushing the tilted upward closed blades 502 is smaller. Therefore, under this design, the rotating shaft 401 will definitely rotate counterclockwise, thereby stopping the rotating shaft 401, and the closed blades 502 close each liquid cooling zone 105, prohibiting the coolant from circulating with each other.

[0064] Regarding the design of the number of three sets of closed blades 502, further design of four sets of closed blades 502 is used as an example for reference comparison of the effect, such as Figure 8 As shown, when there are four groups of closed blades 502, when one of the closed blades 502 is vertically zero-touching the bottom end of the liquid cooling chamber 103, the four groups of closed blades 502 will maintain a cross state. In order to ensure that the closed blades 502 are zero-touching the bottom end of the liquid cooling chamber 103, the rotating shaft 401 is in a fixed state, and a corresponding number of engaging grooves 402 on the rotating shaft 401 are also required to be provided. Two of the four groups of closed blades 502 in the cross state are vertically arranged. Then, when the heavy truck stops at the brakes, the inertial impact force of the coolant on the two groups of vertical closed blades 502 is the same. However, since the coolant rotates clockwise during normal circulation, under the same inertial impact force, the circulation roller valve 5 will most likely continue to rotate clockwise, which results in the inability to separate and close the visual liquid cooling zone 105 when the heavy truck stops at the brakes, thereby reducing the vibration intensity of the coolant.

[0065] The sodium battery module 2 consists of a sodium ion battery cell 201, an aerogel 202, a series-connected aluminum target 203, positive and negative aluminum targets 204, a voltage and temperature acquisition harness 205, a module end plate 206, a steel belt 207, and an insulating member 208.

[0066] Multiple groups of sodium ion cells 201 are provided, and aerogel 202 is provided between the multiple groups of sodium ion cells 201. The multiple groups of sodium ion cells 201 are connected in series through series aluminum targets 203. The multiple groups of sodium ion cells 201, aerogel 202 and series aluminum targets 203 are combined into a cell module, and module end plates 206 are provided at both ends of the cell module. The two groups of module end plates 206 and the cell module are bound by steel strips 207.

[0067] The battery cell modules are provided in multiple groups, and the multiple groups of battery cell modules are connected in series through the positive and negative aluminum targets 204 .

[0068] The sodium ion battery cells 201 are provided with aerogel 202 to achieve insulation and heat insulation between the sodium ion battery cells 201. The steel strip 207 binds the module end plate 206 and the battery module, and then passes through the module end plate 206 and is fixedly connected to the liquid cooling base plate 101 by bolts.

[0069] The panel where the liquid cooling base plate 101 contacts the bottom of the sodium battery module 2 is coated with thermal conductive structural adhesive, which is used to achieve heat conduction and buffer fixation of the sodium battery module 2. Bolt lifting hooks and fixing holes are preset around the liquid cooling base plate 101 to achieve the lifting and fixation of the sodium battery liquid cooling plug-in box.

[0070] The voltage and temperature collection harness 205 is electrically connected to the multiple sodium ion batteries 201 by bolts; it is used to collect and transmit the voltage and temperature information of the sodium ion batteries 201.

[0071] An insulating member 208 is fixedly installed on the top of the battery cell module to achieve insulation of the top of the sodium battery module 2. The insulating member 208 uses insulating material to wrap the top of the battery cell module.

[0072] The explosion-proof valve 6, power plug-in 7 and communication plug-in 8 are fixedly installed on the liquid cooling base plate 101 by bolts. Through the setting of the explosion-proof valve 6, when the gas pressure in the sodium electrolyte liquid cooling box reaches a certain threshold, the explosion-proof valve releases pressure.

[0073] An electrical bracket 9 is fixedly mounted on one end of the liquid cooling base plate 101, and a battery management module 10 and a fuse 11 are fixedly mounted on the electrical bracket 9;

[0074] The battery management module 10 is connected to the voltage and temperature collection harness 205 and the communication plug-in 8 , and the voltage and temperature information collection and communication of the battery management module 10 are realized through the communication plug-in 8 .

[0075] The fuse 11 is fixedly connected to the sodium battery module 2 through a copper busbar, and the other end of the fuse 11 is fixedly connected to the power plug-in 7 through a copper busbar. Through the setting of the power plug-in 7, electrical protection of the sodium battery liquid cold plug-in can be achieved when an overload or short circuit occurs.

[0076] A temperature probe tube 12 is provided at the top of the sodium battery module 2. Through the provision of the temperature probe tube 12, the temperature inside the sodium battery liquid cooling box can be monitored in real time.

[0077] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular sodium-electric heavy-duty truck liquid-cooled plug-in box structure, characterized by: It comprises an inserting box mechanism (1), wherein a sodium battery module (2) is arranged inside the inserting box mechanism (1); The insert box mechanism (1) is composed of a liquid cooling base plate (101) and a box cover (102); a liquid cooling cavity (103) is provided in the liquid cooling base plate (101); and staggered partition plates (104) are provided in the liquid cooling cavity (103); a one-way circulation component (3) is provided at one end of the partition plate (104); and the one-way circulation component (3) and the partition plate (104) divide the liquid cooling cavity (103) into a plurality of liquid cooling zones (105); and a plurality of buffer plates (106) are arranged in an array in the liquid cooling zone (105); A liquid inlet (107) and a liquid outlet (108) are provided on the liquid cooling base plate (101), and the liquid inlet (107) and the liquid outlet (108) are in communication with the liquid cooling cavity (103), and the flow direction of the one-way flow component (3) is the direction from the liquid inlet (107) to the liquid outlet (108).

2. The modular sodium-electric heavy-duty truck liquid cooling plug-in box structure according to claim 1 is characterized by: A rotation groove (104a) and a rod insertion groove (104b) are provided at one end of the partitioning plate (104), and the rotation groove (104a) and the rod insertion groove (104b) are in communication; The one-way circulation component (3) includes a rotating shaft (4) arranged in the rotating groove (104a), a circulation roller valve (5) arranged on the rotating shaft (4), and a rotation-stopping rod (301) arranged in the rod insertion groove (104b).

3. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 2 is characterized by: The rotating shaft (4) comprises a rotating shaft (401) that is rotationally matched with the rotating groove (104a), and three groups of clamping grooves (402) formed on the circumferential side wall of the rotating shaft (401).

4. The modular sodium-electric heavy-duty truck liquid cooling plug-in box structure according to claim 3 is characterized by: The circulation roller valve (5) comprises an axis roller (501) fixedly connected to the rotating shaft (401), and three groups of closed blades (502) arranged in a circumferential array on the axis roller (501).

5. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 4 is characterized by: The sodium battery module (2) is composed of a sodium ion battery cell (201), an aerogel (202), a series-connected aluminum target (203), positive and negative aluminum targets (204), a voltage and temperature acquisition harness (205), a module end plate (206), a steel belt (207), and an insulating member (208); The sodium ion battery cells (201) are provided with a plurality of groups, and aerogels (202) are provided between the plurality of groups of sodium ion battery cells (201), the plurality of groups of sodium ion battery cells (201) are connected in series via series aluminum targets (203), and the plurality of groups of sodium ion battery cells (201), the aerogels (202) and the series aluminum targets (203) are combined into a battery cell module, and the module end plates (206) are provided at both ends of the battery cell module, and the two groups of module end plates (206) and the battery cell module are bound by a steel belt (207); The battery cell modules are provided in multiple groups, and the multiple groups of battery cell modules are connected in series via positive and negative aluminum targets (204).

6. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 5 is characterized by: The voltage and temperature acquisition harness (205) is electrically connected to the plurality of sodium ion battery cells (201) by bolt fixation; An insulating member (208) is fixedly mounted on the top of each battery cell module.

7. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 6 is characterized by: An explosion-proof valve (6), a power plug-in unit (7) and a communication plug-in unit (8) are fixedly mounted on the liquid cooling base plate (101) by means of bolts.

8. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 7 is characterized by: An electrical bracket (9) is fixedly mounted on one end of the liquid cooling base plate (101), and a battery management module (10) and a fuse (11) are fixedly mounted on the electrical bracket (9); The battery management module (10) is connected to the voltage and temperature acquisition harness (205) and the communication plug-in (8).

9. The modular sodium-electric heavy-duty card liquid cooling plug-in box structure according to claim 8 is characterized by: The fuse (11) is fixedly connected to the sodium electric module (2) via a copper busbar, and the other end of the fuse (11) is fixedly connected to the power plug-in (7) via a copper busbar.

10. The modular sodium-electric heavy-duty truck liquid cooling plug-in box structure according to claim 9 is characterized by: A temperature detection tube (12) is provided at the top of the sodium battery module (2).

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