A new type of power battery liquid cooling plate

Abstract

The application discloses a novel power battery liquid cooling plate with pipeline structure, which comprises a battery body and a pipeline mechanism, wherein the pipeline mechanism is arranged on both sides of the battery body and is used for adjusting the flow of cooling liquid; the pipeline mechanism comprises a cooling plate, straight pipelines, side pipelines, a liquid inlet and a liquid outlet; the outer wall of the battery body is connected with the cooling plate, and the cooling plate is internally provided with the straight pipelines; the cooling liquid enters the liquid inlet, flows to the straight pipelines and the side pipelines, and then flows out of the liquid outlet; the straight pipelines and the side pipelines are both provided with a plurality of water-drop-shaped bifurcated channels which are communicated with each other, so that the contact area of the cooling liquid and the cooling plate is increased, and the heat dissipation effect is improved; the cooling liquid flows from the tip of the water-drop-shaped bifurcated channel to the arc surface end, so that the backflow cooling liquid and the forward-flowing cooling liquid are impacted in the flowing process of the cooling liquid, the cooling liquid is disturbed, and the heat exchange effect of the cooling liquid is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to a battery cooling device. BACKGROUND

[0002] With the development of new energy vehicles, the innovation of new energy vehicle batteries is also increasing. New energy vehicle batteries are new vehicle batteries that use new energy technology to reduce "greenhouse gas" emission pollution.

[0003] The existing liquid cooling plate is a straight and side-by-side type liquid cooling plate, which has the disadvantage that the liquid flows directly in the liquid cooling plate and cannot disturb the cooling liquid to allow the cooling liquid to absorb heat to a greater extent, and the heat dissipation effect is not sufficient, which can cause the battery to accumulate a large amount of heat during operation, resulting in reduced battery efficiency and shortened battery life, and even can cause the battery to self-ignite, causing the vehicle body to catch fire and endangering the lives of passengers. SUMMARY

[0004] The present application aims to overcome the defects of the straight and side-by-side type liquid cooling plate flow heat dissipation efficiency and provide a new type of power battery liquid cooling plate with a pipeline structure.

[0005] The technical solution to achieve the above-mentioned purpose is: a new type of power battery liquid cooling plate with a pipeline structure, comprising a battery body, a pipeline mechanism, the pipeline mechanism is arranged on both sides of the battery body, and the pipeline mechanism is used for adjusting the flow of the cooling liquid.

[0006] Preferably, the pipeline mechanism comprises a cooling plate, a straight pipeline, a side pipeline, an inlet and an outlet, the outer wall of the battery body is connected with the cooling plate, the straight pipeline is arranged in the cooling plate, the inner wall of the cooling plate is provided with the side pipeline, one end of the cooling plate is provided with the inlet, the other end of the cooling plate is provided with the outlet, the straight pipeline and the side pipeline are in communication with the inlet and the outlet, and the straight pipeline and the side pipeline are provided with a plurality of water drop-shaped bifurcated channels in communication with each other.

[0007] Preferably, the straight channel of the side pipeline is provided with a gain mechanism, the gain mechanism comprises a flow adjusting mechanism and an adjusting mechanism, the flow adjusting mechanism is used for adjusting the flow of the liquid at the straight channel of the side pipeline, and the adjusting mechanism is used for adjusting the operation of the flow adjusting mechanism.

[0008] Preferably, the flow adjusting mechanism comprises a fixed block, a return spring, an L-shaped plate, a sliding groove and a placement plate, the outer wall of the side pipeline is connected with the fixed block, the outer wall of the fixed block is connected with the return spring, one end of the return spring is connected with the placement plate, the outer wall of the placement plate is connected with the L-shaped plate, the outer wall of the side pipeline is provided with the sliding groove, and the inner wall of the sliding groove is in sliding connection with the L-shaped plate.

[0009] Preferably, the adjusting mechanism comprises an inner cavity, an inlet hole, an outlet hole, a power element and an adjusting element, the placing plate is provided with the inner cavity, the inner cavity is provided with the inlet hole on the side close to the reset spring, the inner cavity is provided with the outlet hole on the side away from the reset spring, and the inner cavity is provided with the power element and the adjusting element.

[0010] Preferably, the power element comprises a rotating shaft, spiral vanes and a driving bevel gear, the bottom end of the inner cavity is rotationally connected with the rotating shaft, the outer wall of the rotating shaft is connected with the spiral vanes, and the top end of the rotating shaft is connected with the driving bevel gear.

[0011] Preferably, the adjusting element comprises a support plate, a connecting shaft, a driven bevel gear, a gear, a toothed ring, a round rod, a connecting plate, a connecting rod, a rotating plate and a round shaft, the inner wall of the inner cavity is connected with the support plate, the outer wall of the support plate is rotationally connected with the connecting shaft, one end of the connecting shaft is connected with the driven bevel gear, the driven bevel gear is engaged with the driving bevel gear, the other end of the connecting shaft is connected with the gear, the outer wall of the gear is engaged with the toothed ring, the top end of the toothed ring is connected with the round rod, the upper end of the round rod is connected with the connecting plate, the upper end of the connecting plate is connected with the connecting rod, the upper end of the connecting rod is rotationally connected with the rotating plate, one end of the rotating plate is rotationally connected with the round shaft, and the round shaft is connected with the placing plate.

[0012] Preferably, the outer wall of the connecting rod penetrates through the outer wall of the placing plate, and the inner wall of the outlet hole penetrates through the L-shaped plate and the inner cavity.

[0013] Preferably, the connecting rod is connected with the rotating plate on the side away from the round shaft.

[0014] The application has the following beneficial effects:

[0015] 1. The cooling liquid enters from the liquid inlet, flows to the straight pipeline and the side pipeline, and then flows out from the liquid outlet. The straight pipeline and the side pipeline are both provided with a plurality of water-drop-shaped bifurcated channels that are connected with each other, so as to increase the contact area of the cooling liquid and the cooling plate, thereby improving the heat dissipation effect. The cooling liquid flows from the tip of the water-drop-shaped bifurcated channel to the arc end, so that the backflow of the cooling liquid collides with the forward flow of the cooling liquid, thereby disturbing the cooling liquid and enhancing the heat exchange effect of the cooling liquid.

[0016] 2. When the cooling liquid flows to the L-shaped plate, the cooling liquid pushes the short plate of the L-shaped plate, so that the L-shaped plate moves to the water-drop-shaped bifurcated channel in the straight pipeline closest to the liquid inlet. The L-shaped plate reduces the inlet diameter of the water-drop-shaped bifurcated channel in the straight pipeline closest to the liquid inlet, so that more cooling liquid can flow to the subsequent water-drop-shaped bifurcated channel in the straight pipeline, thereby avoiding too little cooling liquid flowing in the subsequent water-drop-shaped bifurcated channel and making the difference in the heat dissipation effect of the cooling plate too large.

[0017] 3. Utilizing gears and a ring gear with only partial teeth, the gears drive the ring gear to move linearly back and forth. The ring gear drives a connecting plate via a round rod, and the connecting plate drives a rotating plate to rotate back and forth via a connecting rod. When the rotating plate rotates upward, it forms a relative inclined plane, which blocks the short plate of the L-shaped plate. This reduces the thrust of the coolant acting on the short plate by part of the force of the connecting rod, thus lowering the thrust of the coolant on the L-shaped plate. The return spring can then pull the L-shaped plate back, allowing a teardrop-shaped branching channel in the straight pipe closest to the inlet to receive coolant normally. Furthermore, because the rotating plate rotates back and forth, the L-shaped plate also moves back and forth. During this movement, the L-shaped plate pushes back some coolant, creating a coolant backflow impact at the straight section of the straight pipe, enhancing the heat dissipation effect of the cooling plate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the state-one cross-sectional structure of the present invention;

[0020] Figure 3 This is a top view of the cross-sectional structure of the present invention in two states;

[0021] Figure 4 This is a schematic diagram of the second cross-sectional side view of the present invention;

[0022] Figure 5 This is a schematic diagram of the front view structure of the second cross-section of the present invention;

[0023] Figure 6 This is a schematic diagram of the L-shaped plate cross-sectional structure of the present invention;

[0024] Figure 7 yes Figure 3 Enlarged structural diagram at point A;

[0025] Figure 8 yes Figure 4 Enlarged structural diagram at point B;

[0026] Figure 9 yes Figure 5 Enlarged structural diagram at point C;

[0027] Figure 10 yes Figure 9 A magnified structural diagram at point D.

[0028] 1, battery body; 2, pipeline mechanism; 201, cooling plate; 202, straight pipeline; 203, side pipeline; 204, liquid inlet; 205, liquid outlet; 3, flow adjusting mechanism; 301, fixed block; 302, return spring; 303, L-shaped plate; 304, sliding groove; 305, placing plate; 4, adjusting mechanism; 401, inner cavity; 402, inlet hole; 403, outlet hole; 5, power piece; 501, rotating shaft; 502, spiral fan blade; 503, driving bevel gear; 6, adjusting piece; 601, support plate; 602, connecting shaft; 603, driven bevel gear; 604, gear; 605, gear ring; 606, round rod; 607, connecting plate; 608, connecting rod; 609, rotating plate; 610, round shaft. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying opposite importance.

[0030] The present application will be further described below in conjunction with the drawings.

[0031] Reference is made to the accompanying drawings Figures 1-10 A novel power battery liquid cooling plate of pipeline structure, comprising a battery body 1, a pipeline mechanism 2, the pipeline mechanism 2 is arranged on both sides of the battery body 1, and the pipeline mechanism 2 is used for adjusting the flow of cooling liquid.

[0032] Reference is made to the accompanying drawings Figures 1-2 The pipeline mechanism 2 comprises a cooling plate 201, a straight pipeline 202, a side pipeline 203, a liquid inlet 204 and a liquid outlet 205, the outer wall of the battery body 1 is connected with the cooling plate 201, the straight pipeline 202 is arranged in the cooling plate 201, the inner wall of the cooling plate 201 is provided with the side pipeline 203, one end of the cooling plate 201 is provided with the liquid inlet 204, the other end of the cooling plate 201 is provided with the liquid outlet 205, the straight pipeline 202 and the side pipeline 203 are in communication with the liquid inlet 204 and the liquid outlet 205, and the straight pipeline 202 and the side pipeline 203 are provided with a plurality of water drop-shaped bifurcated channels in communication with each other.

[0033] The cooling liquid enters from the liquid inlet 204, flows to the straight pipeline 202 and the side pipeline 203, and then flows out from the liquid outlet 205. The straight pipeline 202 and the side pipeline 203 are both provided with a plurality of water-drop-shaped bifurcated channels which are communicated with each other, so as to increase the contact area of the cooling liquid with the cooling plate 201, thereby improving the heat dissipation effect. The cooling liquid flows from the tip of the water-drop-shaped bifurcated channel to the arc end, so that the backflow of the cooling liquid collides with the forward flow of the cooling liquid, thereby disturbing the cooling liquid, so as to enhance the heat exchange effect of the cooling liquid.

[0034] Reference is made to the accompanying drawings Figures 3-10 The straight channel of the side pipeline 203 is provided with a gain mechanism, which comprises a flow adjusting mechanism 3 and an adjusting mechanism 4. The flow adjusting mechanism 3 is used for adjusting the flow of the liquid at the straight channel of the side pipeline 203, and the adjusting mechanism 4 is used for adjusting the operation of the flow adjusting mechanism 3.

[0035] Reference is made to the accompanying drawings Figures 6-10 The flow adjusting mechanism 3 comprises a fixed block 301, a reset spring 302, an L-shaped plate 303, a sliding groove 304 and a placement plate 305. The outer wall of the side pipeline 203 is connected with the fixed block 301. The outer wall of the fixed block 301 is connected with the reset spring 302. One end of the reset spring 302 is connected with the placement plate 305. The outer wall of the placement plate 305 is connected with the L-shaped plate 303. The outer wall of the side pipeline 203 is provided with the sliding groove 304. The inner wall of the sliding groove 304 is slidingly connected with the L-shaped plate 303.

[0036] When the cooling liquid flows to the L-shaped plate 303, the cooling liquid pushes the short plate of the L-shaped plate 303, so that the L-shaped plate 303 moves to the water-drop-shaped bifurcated channel of the nearest straight pipeline 202 away from the liquid inlet 204. The L-shaped plate 303 reduces the inlet diameter of the water-drop-shaped bifurcated channel of the nearest straight pipeline 202 away from the liquid inlet 204, so that more cooling liquid can flow to the subsequent water-drop-shaped bifurcated channel of the straight pipeline 202, thereby avoiding too little cooling liquid flowing in the subsequent water-drop-shaped bifurcated channel, and avoiding too large difference in the heat dissipation effect of the cooling plate 201.

[0037] Reference is made to the accompanying drawings Figures 6-10 The adjusting mechanism 4 comprises an inner cavity 401, an inlet hole 402, an outlet hole 403, a power member 5 and an adjusting member 6. The inner cavity 401 is arranged in the placement plate 305. The side of the inner cavity 401 close to the reset spring 302 is provided with the inlet hole 402. The side of the inner cavity 401 away from the reset spring 302 is provided with the outlet hole 403. The inner cavity 401 is provided with the power member 5 and the adjusting member 6.

[0038] Reference is made to the accompanying drawings Figures 9-10 The power member 5 comprises a rotating shaft 501, a spiral fan blade 502 and a driving bevel gear 503. The bottom end of the inner cavity 401 is rotatably connected with the rotating shaft 501. The outer wall of the rotating shaft 501 is connected with a plurality of spiral fan blades 502. The top end of the rotating shaft 501 is connected with the driving bevel gear 503.

[0039] Reference to the accompanying drawings Figure 10 The adjusting member 6 comprises a support plate 601, a connecting shaft 602, a driven bevel gear 603, a gear 604, a toothed ring 605, a round rod 606, a connecting plate 607, a connecting rod 608, a rotating plate 609, and a round shaft 610. The inner wall of the inner cavity 401 is connected with the support plate 601. The outer wall of the support plate 601 is rotationally connected with the connecting shaft 602. One end of the connecting shaft 602 is connected with the driven bevel gear 603. The driven bevel gear 603 is engaged with the driving bevel gear 503. The other end of the connecting shaft 602 is connected with the gear 604. The outer wall of the gear 604 is engaged with the toothed ring 605. The top end of the toothed ring 605 is connected with the round rod 606. The upper end of the round rod 606 is connected with the connecting plate 607. The upper end of the connecting plate 607 is connected with the connecting rod 608. The upper end of the connecting rod 608 is rotationally connected with the rotating plate 609. One end of the rotating plate 609 is rotationally connected with the round shaft 610. The round shaft 610 is connected with the placing plate 305. The outer wall of the connecting rod 608 penetrates through the outer wall of the placing plate 305. The inner wall of the outlet hole 403 penetrates through the L-shaped plate 303 and the inner cavity 401. The connecting rod 608 is connected with the rotating plate 609 at a side away from the round shaft 610.

[0040] The cooling liquid enters the inner cavity 401 from the inlet hole 402 and then flows out from the outlet hole 403. The cooling liquid drives the spiral fan blade 502 to rotate. The spiral fan blade 502 drives the driving bevel gear 503 to rotate through the rotating shaft 501. The driven bevel gear 603 is used to change the rotating direction. The driven bevel gear 603 drives the gear 604 to rotate through the connecting shaft 602. The gear 604 and the toothed ring 605 are only partially toothed, so that the gear 604 can drive the toothed ring 605 to move linearly in a reciprocating manner. The toothed ring 605 drives the connecting plate 607 to move through the round rod 606. The connecting plate 607 drives the rotating plate 609 to reciprocate through the connecting rod 608. When the rotating plate 609 rotates upward, the rotating plate 609 forms a relative slope. The rotating plate 609 blocks the short plate of the L-shaped plate 303. Part of the thrust of the cooling liquid originally acting on the short plate of the L-shaped plate 303 is offset by the supporting force of the connecting rod 608, so that the thrust of the cooling liquid acting on the L-shaped plate 303 is reduced. The reset spring 302 can pull back the L-shaped plate 303. A water-drop-shaped bifurcated channel closest to the inlet hole 204 in the straight pipeline 202 can normally receive the cooling liquid. Since the rotating plate 609 reciprocates, the L-shaped plate 303 also reciprocates. The L-shaped plate 303 pushes back part of the cooling liquid in the moving process, so that the straight channel of the straight pipeline 202 can also generate a cooling liquid backflow impact, thereby enhancing the heat dissipation effect of the cooling plate 201.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A new type of power battery liquid cooling plate of pipeline structure, comprising a battery body (1), characterized in that, Including pipeline mechanism (2), pipeline mechanism (2) is arranged at both sides of battery body (1), pipeline mechanism (2) is used to adjust cooling liquid flow; The pipeline mechanism (2) includes a cooling plate (201), a straight pipeline (202), a side pipeline (203), an inlet (204) and an outlet (205), the outer wall of the battery body (1) is connected with the cooling plate (201), the straight pipeline (202) is arranged in the cooling plate (201), the inner wall of the cooling plate (201) is provided with the side pipeline (203), one end of the cooling plate (201) is provided with the inlet (204), the other end of the cooling plate (201) is provided with the outlet (205), the straight pipeline (202) and the side pipeline (203) are communicated with the inlet (204) and the outlet (205), the straight pipeline (202) and the side pipeline (203) are provided with a plurality of water drop-shaped bifurcated channels communicated with each other; The straight channel of the side pipeline (203) is provided with a gain mechanism, the gain mechanism includes a flow adjusting mechanism (3) and an adjusting mechanism (4), the flow adjusting mechanism (3) is used to adjust the liquid flow of the straight channel of the side pipeline (203), and the adjusting mechanism (4) is used to adjust the operation of the flow adjusting mechanism (3); The flow adjusting mechanism (3) includes a fixed block (301), a reset spring (302), an L-shaped plate (303), a sliding groove (304) and a placing plate (305), the outer wall of the side pipeline (203) is connected with the fixed block (301), the outer wall of the fixed block (301) is connected with the reset spring (302), one end of the reset spring (302) is connected with the placing plate (305), the outer wall of the placing plate (305) is connected with the L-shaped plate (303), the outer wall of the side pipeline (203) is provided with the sliding groove (304), and the inner wall of the sliding groove (304) is slidably connected with the L-shaped plate (303); The adjusting mechanism (4) includes an inner cavity (401), an inlet hole (402), an outlet hole (403), a power element (5) and an adjusting element (6), the inner cavity (401) is arranged in the placing plate (305), the inlet hole (402) is arranged on the side of the inner cavity (401) close to the reset spring (302), the outlet hole (403) is arranged on the side of the inner cavity (401) away from the reset spring (302), and the power element (5) and the adjusting element (6) are arranged in the inner cavity (401); The power element (5) includes a rotating shaft (501), a spiral fan blade (502) and a driving bevel gear (503), the bottom end of the inner cavity (401) is rotatably connected with the rotating shaft (501), the outer wall of the rotating shaft (501) is connected with a plurality of spiral fan blades (502), and the top end of the rotating shaft (501) is connected with the driving bevel gear (503). Said adjusting part (6) is composed of a supporting plate (601), a connecting shaft (602), a driven bevel gear (603), a gear (604), a toothed ring (605), a round rod (606), a connecting plate (607), a connecting rod (608), a rotating plate (609) and a round shaft (610), the inner wall of the inner cavity (401) is connected with the supporting plate (601), the outer wall of the supporting plate (601) is rotationally connected with the connecting shaft (602), one end of the connecting shaft (602) is connected with the driven bevel gear (603), the driven bevel gear (603) is engaged with the driving bevel gear (503), the other end of the connecting shaft (602) is connected with the gear (604), the outer wall of the gear (604) is engaged with the toothed ring (605), the top end of the toothed ring (605) is connected with the round rod (606), the upper end of the round rod (606) is connected with the connecting plate (607), the upper end of the connecting plate (607) is connected with the connecting rod (608), the upper end of the connecting rod (608) is rotationally connected with the rotating plate (609), one end of the rotating plate (609) is rotationally connected with the round shaft (610), and the round shaft (610) is connected with the placing plate (305).

2. The liquid cooling plate of the power battery of the novel pipeline structure according to claim 1, characterized in that, The outer wall of the connecting rod (608) penetrates through the outer wall of the placing plate (305), and the inner wall of the outlet hole (403) penetrates through the L-shaped plate (303) and the inner cavity (401).

3. The liquid cooling plate of the power battery of the novel pipeline structure according to claim 1, characterized in that, The connecting rod (608) and the rotating plate (609) are connected at the side away from the round shaft (610).

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