Production process of liquid cooling plate of power battery

Abstract

The invention relates to the technical field of liquid cooling plate production, in particular to a power battery liquid cooling plate production process. Comprising the following steps that firstly, a plate is cut, the cut plate is conveyed to the upper end of a lower die through a support to be stamped, the stamped plate is subjected to degreasing treatment, then brazing flux spraying and brazing, and the required liquid cooling plate is obtained; through the arrangement of the support and the transmission belt, after a user vertically places a plate on the support, the support can drive the plate in the vertical state to rotate to the horizontal state, the transmission belt conveys the plate in the horizontal state to the upper end of the lower die, and therefore the user does not need to lift the plate to the upper end of the lower die; the labor intensity of workers is reduced, the physical fatigue of the workers is reduced to prevent occupational injuries, and the situation that the local structure is deformed or damaged due to the fact that the plates are extruded or collided due to gravity or external force is avoided; and therefore, the practicability of the plate punching device is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid cooling plate production, in particular to a production process of a power battery liquid cooling plate. Background Art

[0002] With the development of new energy vehicles in recent years, wireless charging technology has been increasingly used in charging new energy vehicles to achieve a convenient and fast experience. Power batteries with wireless charging technology not only free chargers from line restrictions, but also achieve complete separation of electrical appliances and power sources. They have better advantages than traditional chargers in terms of safety and flexibility. The main function of the liquid cooling plate of the power battery with wireless charging function is to efficiently remove the excess heat generated by the battery during operation through the liquid circulation system, and maintain the battery in a safe and optimal temperature range. This function is crucial to maintaining the life, stability and safety of the battery.

[0003] The main raw materials of the power battery liquid cooling plate with wireless charging function include pure copper plate and aluminum alloy composite material; and the production process steps of the power battery liquid cooling plate with wireless charging function are as follows: first, the plate raw materials are cut according to the requirements of the drawing, and then the cut metal plates are punched into the upper and lower plates of the liquid cooling plate by metal stamping technology, and the power receiving coil is integrated into the lower plate of the liquid cooling plate, and then the upper and lower plates of the liquid cooling plate after stamping are cleaned and brazed, so that the upper and lower plates of the liquid cooling plate are brazed and connected into a whole, and finally the brazed liquid cooling plate is surface treated;

[0004] In the stamping production process of existing power battery liquid cooling plates, the handling link is one of the key steps to achieve production continuity and ensure product quality. For large enterprises, they have strong capital and will purchase relevant automatic loading and unloading equipment to complete the handling of stamped liquid cooling plates to ensure that the stamped liquid cooling plate products are not damaged during the handling process; however, the purchase cost, installation cost and maintenance cost of automatic handling equipment are high, which is difficult for small and medium-sized enterprises with relatively tight funds to bear; therefore, small and medium-sized enterprises often rely on manual loading and unloading of liquid cooling plates;

[0005] However, manual handling is usually slower than automated handling systems, with lower efficiency. Long-term manual handling of power batteries will increase physical fatigue of workers and even cause occupational injuries. Moreover, the handling process is easily affected by human factors. If handled improperly, the liquid cooling plate will be squeezed or collided due to gravity or external forces, resulting in local structural deformation or damage. This will in turn affect the contact area and contact effect between the liquid cooling plate and the battery cell, resulting in a decrease in the cooling efficiency of the liquid cooling plate on the power battery.

[0006] In view of this, in order to overcome the above technical problems, the present invention proposes a production process for a power battery liquid cooling plate to solve the above technical problems. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art, the present invention proposes a production process for a power battery liquid cooling plate. The present invention, through the arrangement of a bracket and a transmission belt, allows the user to vertically place the plate on the bracket, and the bracket can drive the vertical plate to rotate to a horizontal state, so that the transmission belt transports the horizontal plate to the upper end of the lower die, thereby eliminating the need for the user to lift the plate to the upper end of the lower die. This not only reduces the labor intensity and physical fatigue of the staff to prevent occupational injuries, but also prevents the plate from being squeezed or collided due to gravity or external force, resulting in local structural deformation or damage, so as to ensure the stamping quality of the plate, and effectively improves the practicability of the present invention.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a production process of a power battery liquid cooling plate according to the present invention comprises the following steps:

[0009] S1: Cutting: First select the plate materials required for manufacturing the liquid cooling plate, and then cut the plate materials according to the drawing requirements to obtain the plates of the required size;

[0010] S2: Plate placing and stamping: the cut plate is placed vertically on the bracket, so that the plate placed vertically on the bracket is turned over to the top of the base with the bracket, and the servo motor is controlled to drive the transmission belt to convey the plate to the upper end of the lower die and face the core of the lower die; the hydraulic cylinder pushes the upper die and the lower die to close the die, so that the plate at the upper end of the lower die is stamped into the required upper plate or lower plate of the liquid cooling plate;

[0011] S3: Stamping recovery: When the sheet is stamped, the upper die is separated from the lower die, so that the molded part at the upper end of the lower die is pushed out by the reset rod. At this time, the electric push rod pushes the molded part to the upper end of the mounting rod through the push plate, and then controls the drive motor to drive the bracket to drive the molded part at the upper end of the mounting rod to flip to a vertical state for easy handling;

[0012] S4: Brazing: Degrease the upper and lower plates of the stamped liquid cooling plate to remove oil and impurities on the surface of the stamped liquid cooling plate. Then integrate the power receiving coil into the lower plate of the liquid cooling plate. Spray brazing flux on the brazing part of the edge of the cleaned liquid cooling plate. Finally, braze the upper and lower plates of the liquid cooling plate to form a complete liquid cooling plate structure.

[0013] S5: Post-processing: The liquid cooling plate after brazing needs to be surface treated and quality tested. Finally, the qualified liquid cooling plate can be packaged and transported.

[0014] Among them, the hydraulic forming machines used in S2-S3 include:

[0015] A base, wherein a support column is fixedly installed on the upper end of the base; the upper end of the support column is fixedly connected to a frame; a hydraulic cylinder is arranged between the frame and the base; the hydraulic cylinder is fixedly connected to the lower end of the frame; a mounting plate is fixedly connected to the lower end of the hydraulic cylinder; the mounting plate is slidably connected to the support column; an upper mold is installed on the lower end of the support column; a lower mold facing the upper mold is installed on the upper end of the base;

[0016] The bracket is rotatably connected to the side wall of the base; a driving motor is installed on one side of the base; the driving motor is used to drive the bracket to rotate; a mounting rod is fixedly connected to the end of the bracket away from the base; a strip groove is provided at the end of the mounting rod away from the bracket; a transmission roller and a transmission belt are arranged in the strip groove; a belt transmission connection is formed between the transmission roller and the transmission belt; the transmission roller is rotatably connected to the inner wall of the strip groove; a push plate is fixedly connected to the outer ring wall of the transmission belt; a servo motor is installed on one side of the mounting rod; the servo motor is used to drive the transmission roller to rotate;

[0017] A pushing unit is installed at the upper end of the base; the pushing unit is used to push the stamped liquid cooling plate onto the mounting rod.

[0018] Preferably, a cylindrical groove is opened at the upper end of the lower mold; the cylindrical groove surrounds the core of the lower mold; a reset rod is slidably connected in the cylindrical groove; the reset rod is fixed to the bottom of the cylindrical groove by a supporting spring; and an electromagnetic sheet is inlaid at the bottom of the cylindrical groove.

[0019] Preferably, the pushing unit includes a connecting rod; a connecting groove is provided at the lower end of the mounting plate; the connecting rod is slidingly and sealingly connected in the connecting groove; the connecting rod is fixedly connected to the bottom of the connecting groove by a connecting spring; an electric push rod is fixedly connected to one end of the connecting rod away from the connecting groove; and a pushing plate is fixedly connected to one end of the electric push rod away from the connecting rod.

[0020] Preferably, a groove is provided at the upper end of the mounting rod; a suction cup is installed in the groove; an air cavity connected to the outside is provided inside the base; two impellers are rotatably connected in the air cavity; the two impellers are meshed and driven by a gear set; one of the impellers is connected to the output shaft of the driving motor; the output shaft of the driving motor and the bracket are connected by a belt drive via a belt; an air duct connected to the suction cup is provided inside the bracket; the end of the air duct away from the suction cup is connected to the groove.

[0021] Preferably, the output shaft of the driving motor is provided with a rectangular groove; a rectangular rod is slidably connected in the rectangular groove; the rectangular rod is connected to the bottom of the rectangular groove by installing a spring; a clamping groove is provided at one end of the impeller close to the rectangular rod; and an electromagnetic plate is inlaid at the bottom of the rectangular groove.

[0022] Preferably, a circular groove is provided on the surface of the output shaft of the driving motor; an insert rod is slidably connected in the circular groove; a slot is provided on the surface of the belt; and a protrusion engaged with the slot is fixedly connected to the surface of the bracket.

[0023] Preferably,: a mounting groove is provided on the side wall of the base; the bracket is slidably connected in the mounting groove; a fixing groove is provided on the groove wall of the mounting groove; a fixing rod is slidably and sealably connected in the fixing groove; the fixing rod is connected to the bottom of the fixing groove via a fixing spring.

[0024] Preferably, a rubber block is fixedly connected to one end of the fixing rod away from the bottom of the fixing groove; and an electromagnetic ring is inlaid at the bottom of the fixing groove.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention arranges a bracket and a transmission belt so that after the user places the plate vertically on the bracket, the bracket can drive the plate in the vertical state to rotate to a horizontal state, so that the transmission belt transports the plate in the horizontal state to the upper end of the lower mold, thereby eliminating the need for the user to lift the plate to the upper end of the lower mold. This not only reduces the labor intensity and physical fatigue of the workers to prevent occupational injuries, but also prevents the plate from being squeezed or collided due to gravity or external force, resulting in local structural deformation or damage, thereby ensuring the stamping quality of the plate, and effectively improving the practicability of the present invention.

[0027] 2. The present invention sets a suction cup, so that when the user drives the impeller to rotate through a driving motor, the impeller can discharge the gas in the air cavity and the groove, so that the groove is in a negative pressure state, so that when the suction cup in the groove contacts the plate, the suction cup can adsorb the unpunched edge of the plate, so that the plate can be tightly attached to the surface of the mounting rod under the action of the negative pressure adsorption force, thereby preventing the stamped plate from tipping away from the mounting rod due to the shift of the center of gravity, and preventing the stamped plate from being deformed or damaged due to falling and collision, so that the actual application effect of the present invention is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0029] Figure 1 is a stereogram of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the mounting plate used in the present invention;

[0031] Figure 3 is a schematic diagram of the structure of the bracket used in the present invention;

[0032] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0033] Figure 5 yes Figure 3 The enlarged view of point B in the middle;

[0034] Figure 6 It is a schematic structural diagram of the base used in the present invention;

[0035] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0036] Figure 8 It is a process flow chart of the present invention;

[0037] In the figure: 1, base; 11, support column; 111, frame; 112, hydraulic cylinder; 113, lower die; 12, mounting plate; 121, upper die; 122, connecting groove; 13, driving motor; 131, rectangular groove; 132, rectangular rod; 133, mounting spring; 134, slot; 135, electromagnetic plate; 14, cylindrical groove; 141, reset rod; 142, support spring; 143, electromagnetic sheet; 15, connecting rod; 151, connecting spring; 152, electric push rod; 153, Push plate; 16, air cavity; 161, impeller; 162, gear set; 17, belt; 171, slot; 18, circular groove; 181, plug rod; 2, bracket; 21, mounting rod; 211, strip groove; 212, transmission roller; 213, transmission belt; 214, push plate; 215, servo motor; 22, groove; 221, suction cup; 23, airway; 24, mounting groove; 25, fixing groove; 251, fixing rod; 252, fixing spring; 26, rubber block; 261, electromagnetic ring. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] like Figures 1 to 8 As shown, a production process of a power battery liquid cooling plate according to the present invention comprises the following steps:

[0040] S1: Cutting: First select the plate materials required for manufacturing the liquid cooling plate, and then cut the plate materials according to the drawing requirements to obtain the plates of the required size;

[0041] S2: Plate placing and stamping: the cut plate is placed vertically on the bracket 2, so that the plate placed vertically on the bracket 2 is turned over to the top of the base 1 with the bracket 2, and the servo motor 215 is controlled to drive the transmission belt 213 to convey the plate to the upper end of the lower die 113 and face the core of the lower die 113; the hydraulic cylinder 112 pushes the upper die 121 to close the lower die 113, so that the plate at the upper end of the lower die 113 is stamped into the required upper plate or lower plate of the liquid cooling plate;

[0042] S3: stamping recovery: when the plate is stamped, the upper die 121 is separated from the lower die 113, so that the molded part at the upper end of the lower die 113 is pushed out by the reset rod 141, and the electric push rod 152 pushes the molded part to the upper end of the mounting rod 21 through the push plate 153, and then controls the drive motor 13 to drive the bracket 2 to drive the molded part at the upper end of the mounting rod 21 to flip to a vertical state for easy handling;

[0043] S4: Brazing: Degrease the upper and lower plates of the stamped liquid cooling plate to remove oil and impurities on the surface of the stamped liquid cooling plate. Then integrate the power receiving coil into the lower plate of the liquid cooling plate. Spray brazing flux on the brazing part of the edge of the cleaned liquid cooling plate. Finally, braze the upper and lower plates of the liquid cooling plate to form a complete liquid cooling plate structure.

[0044] S5: Post-processing: The liquid cooling plate after brazing needs to be surface treated and quality tested. Finally, the qualified liquid cooling plate can be packaged and transported.

[0045] Among them, the hydraulic forming machines used in S2-S3 include:

[0046] A base 1, wherein a support column 11 is fixedly mounted on the upper end of the base 1; the upper end of the support column 11 is fixedly connected to a frame 111; a hydraulic cylinder 112 is arranged between the frame 111 and the base 1; the hydraulic cylinder 112 is fixedly connected to the lower end of the frame 111; a mounting plate 12 is fixedly connected to the lower end of the hydraulic cylinder 112; the mounting plate 12 is slidably connected to the support column 11; an upper die 121 is mounted on the lower end of the support column 11; a lower die 113 facing the upper die 121 is mounted on the upper end of the base 1;

[0047] A bracket 2, wherein the bracket 2 is rotatably connected to the side wall of the base 1; a driving motor 13 is installed on one side of the base 1; the driving motor 13 is used to drive the bracket 2 to rotate; a mounting rod 21 is fixedly connected to one end of the bracket 2 away from the base 1; a strip groove 211 is provided at one end of the mounting rod 21 away from the bracket 2; a transmission roller 212 and a transmission belt 213 are arranged in the strip groove 211; the transmission roller 212 and the transmission belt 213 are connected by belt transmission; the transmission roller 212 is rotatably connected to the inner wall of the strip groove 211; a push plate 214 is fixedly connected to the outer ring wall of the transmission belt 213; a servo motor 215 is installed on one side of the mounting rod 21; the servo motor 215 is used to drive the transmission roller 212 to rotate;

[0048] A pushing unit is installed at the upper end of the base 1 ; the pushing unit is used to push the stamped liquid cooling plate onto the mounting rod 21 .

[0049] As an embodiment of the present invention, a cylindrical groove 14 is opened at the upper end of the lower mold 113; the cylindrical groove 14 surrounds the core of the lower mold 113; a reset rod 141 is slidably connected in the cylindrical groove 14; the reset rod 141 is fixedly connected to the bottom of the cylindrical groove 14 by a support spring 142; and an electromagnetic sheet 143 is inlaid at the bottom of the cylindrical groove 14.

[0050] As an embodiment of the present invention, the pushing unit includes a connecting rod 15; a connecting groove 122 is provided at the lower end of the mounting plate 12; the connecting rod 15 is slidingly and sealingly connected in the connecting groove 122; the connecting rod 15 is fixedly connected to the bottom of the connecting groove 122 by a connecting spring 151; an electric push rod 152 is fixedly connected to one end of the connecting rod 15 away from the connecting groove 122; and a pushing plate 153 is fixedly connected to one end of the electric push rod 152 away from the connecting rod 15;

[0051] At work, existing small and medium-sized enterprises often rely on manual loading and unloading of liquid cooling plates during the stamping production process of power battery liquid cooling plates. The speed of manual handling is usually slower than that of the automated handling system, and the efficiency is low. In addition, long-term manual handling of plates will increase the physical fatigue of workers and even cause occupational injuries. Moreover, the handling process is easily affected by human factors. If the handling is improper, the plates will be squeezed or collided due to gravity or external forces, resulting in local structural deformation or damage. This will further affect the contact area and contact effect between the liquid cooling plate and the battery cell, resulting in a decrease in the cooling efficiency of the liquid cooling plate on the power battery.

[0052] In this regard, the present invention arranges the support 2 and the transmission belt 213 so that after the user places the plate vertically on the support 2, the support 2 can drive the plate in the vertical state to rotate to the horizontal state, so that the transmission belt 213 conveys the plate in the horizontal state to the upper end of the lower mold 113, thereby eliminating the need for the user to lift the plate to the upper end of the lower mold 113, which not only reduces the labor intensity and physical fatigue of the workers to prevent occupational injuries, but also prevents the plate from being squeezed or collided due to gravity or external forces, resulting in local structural deformation or damage; thereby ensuring the stamping quality of the plate, and effectively improving the practicality of the present invention;

[0053] In the initial state, a mold cavity is formed on the lower end surface of the upper mold 121, a mold core facing the mold cavity is fixedly mounted on the upper end surface of the lower mold 113, and the bracket 2 is in a horizontal state. The mounting rod 21 fixedly connected to the end of the bracket 2 away from the base 1 is in a vertical state. The user vertically transports the plate required for stamping the liquid cooling plate to the mounting rod 21, so that the plate is placed on the upper end of the push plate 214 in a horizontal state, so that the plate in the vertical state contacts the mounting rod 21, and the lower end of the plate is supported by the push plate 214; since the plate required for stamping the upper plate or the lower plate of the liquid cooling plate is mostly a thin plate ; However, metal sheets are more likely to bend when in a horizontal state because they are deformed by their own weight. Therefore, when the user lifts the sheet horizontally to the upper end of the lower mold 113, the sheet will be deformed by its own weight. To this end, the present invention can reduce the bending moment of the sheet by vertically transporting the sheet, thereby avoiding permanent deformation of the sheet due to its own gravity during the transport process; then the user controls the drive motor 13 to operate, so that the drive motor 13 can drive the bracket 2 to rotate, so that during the rotation of the bracket 2, it can drive the mounting rod 21 and the sheet to rotate upward in the direction close to the base 1, so that when the sheet rotates upward, the sheet tilts in the direction close to the mounting rod 21, so that the sheet leans on the mounting rod 21 under the action of its own gravity, so that the mounting plate 12 can support the sheet and drive the sheet to flip stably; since there are two mounting rods 21, a support rod is rotatably connected between the two mounting rods 21, and the support rod is used to support the sheet to avoid the center of the sheet from being concave and deformed due to gravity; when the sheet rotates to a horizontal state, the push plate 214 is also driven by the mounting rod 21 The plate is in a vertical state at the bottom, and at this time, the plate is located on the side of the push plate 214 close to the base 1. At this time, the electromagnetic sheet 143 is controlled to operate, so that the electromagnetic sheet 143 can generate an adsorption force on the reset rod 141 in the cylindrical groove 14, so that the reset rod 141 can squeeze the support spring 142 into the cylindrical groove 14 under the adsorption of the electromagnetic sheet 143. Since the reset rod 141 is provided with an inclined surface at one end close to the mounting rod 21; when the reset rod 141 completely enters the cylindrical groove 14, the side of the inclined surface of the reset rod 141 close to the mounting rod 21 is in the same plane as the upper end surface of the base 1;At this time, the servo motor 215 is controlled to run, so that the servo motor 215 drives the transmission roller 212 to rotate, so that the transmission roller 212 can drive the transmission belt 213 to rotate in the strip groove 211, so that the transmission belt 213 drives the push plate 214 to move in the direction close to the base 1, so that the push plate 214 pushes the plate on the upper end of the mounting rod 21 to the base 1, so that the end of the plate located on the base 1 slides along the upper end surface of the base 1 to the upper end of the reset rod 141, so that the plate slides along the inclined surface of the upper end of the reset rod 141 to the upper end of the reset rod 141. At this time, the current passed into the electromagnetic sheet 143 close to the mounting rod 21 is controlled to be reduced, so that the magnetic adsorption force of the electromagnetic sheet 143 is weakened, so that the reset rod 141 is affected. The support of the restoring force of the support spring 142 pushes the upper plate to rise, so that the lower end surface of the plate is higher than the upper end surface of the lower mold 113. At this time, as the transmission belt 213 continues to convey the plate to move in the direction close to the lower mold 113, one end of the plate passes over the reset rod 141 to the top of the lower mold 113, so that the plate falls to the upper end of the core of the lower mold 113. As the plate is continuously conveyed, the center of the plate is located at the lower end of the mold cavity of the upper mold 121. At this time, the driving motor 13 is controlled to drive the bracket 2 to rotate away from the base 1, so that the bracket 2 drives the mounting rod 21 away from the base 1, and then the hydraulic cylinder 112 is controlled to operate, so that the hydraulic cylinder 112 pushes the mounting plate 12 to slide downward along the support column 11, so that the mounting plate 12 drives the upper die 121 to approach the lower die 113 until the upper die 121 and the lower die 113 are molded together, so that the plate between the upper die 121 and the lower die 113 is stamped into the upper plate or the lower plate of the liquid cooling plate; then the hydraulic cylinder 112 is controlled to pull the mounting plate 12 to drive the upper die 121 to rise, so that the upper die 121 is separated from the lower die 113, and at this time, the electromagnetic plate 143 is controlled to be powered off, so that the reset rod 141 extends out of the cylindrical groove 14 under the push of the restoring force of the support spring 142 and pushes the stamped plate to rise and move away from the lower die 113, thereby completing the demoulding of the plate; at this time, the stamped plate is located above the lower die 113; and in the process of the mounting plate 12 descending, the mounting plate 12 will drive the connecting rod 15 at the lower end to move upward, and the mounting plate 12 will ... The connecting rod 15 is gradually lowered until it contacts the base 1, so that the connecting rod 15 is blocked by the base 1 and squeezes the connecting spring 151 into the connecting groove 122; after the upper mold 121 and the lower mold 113 complete the mold closing, the hydraulic cylinder 112 pulls the mounting plate 12 to rise, so that the mounting plate 12 drives the connecting rod 15 to rise, and since the connecting spring 151 in the connecting groove 122 is in a compressed state, the connecting spring 151 pushes the connecting rod 15 and the base 1 to maintain a tight state until the connecting spring 151 is fully restored, at which time the connecting rod 15 and the pushing plate 153 are driven by the mounting plate 12 to rise; in the process of the pushing plate 153 rising, the driving motor 13 is controlled to drive the bracket 2 to rotate in the direction close to the base 1;When the connecting rod 15 drives the pushing plate 153 to rise until the lower end surface of the pushing plate 153 is located above the lower mold 113, and the pushing plate 153 is located on one side of the stamping plate at this time, the mounting rod 21 is also in a horizontal state; then the electric push rod 152 is controlled to operate so that the electric push rod 152 can push the pushing plate 153 close to the stamped plate, so that the stamped plate is pushed by the pushing plate 153 and moves toward the mounting rod 21, so that the stamped plate slides onto the transmission belt 213, and then the electromagnetic sheet 143 is controlled to absorb the reset rod 141 into the cylindrical groove 14 to prevent the reset rod 141 from entering the stamping cavity on the lower end surface of the stamped plate, so as to prevent the reset rod 141 from blocking the stamped plate from sliding onto the mounting rod 21. With the joint operation of the servo motor 215 and the electric push rod 152, the servo motor 215 drives the transmission belt 213 to drive the stamped plate to move on the mounting rod 21, and the electric push rod The rod 152 is a multi-section electric push rod 152, which increases the elongation of the electric push rod 152 and reduces the volume of the electric push rod 152, saving installation space, so that the present invention can be used normally in an environment with limited space, and the practicality of the present invention is further improved; after the stamped plate is stably located on the mounting rod 21, the electric push rod 152 is controlled to reset, and at the same time, the driving motor 13 drives the bracket 2 to rotate, so that the bracket 2 drives the stamped plate to rotate away from the base 1, so that after the plate is rotated to a vertical state, the user carries the stamped plate vertically to prevent the stamped plate from bending due to horizontal transportation, and to avoid deformation of the local structure of the stamped plate, which causes deformation of the liquid cooling plate produced in the final production; thereby increasing the contact area and contact effect between the liquid cooling plate and the battery cell, and improving the cooling efficiency of the liquid cooling plate on the power battery; so that the practicality of the present invention is further improved. ;

[0054] As an embodiment of the present invention, a groove 22 is provided at the upper end of the mounting rod 21; a suction cup 221 is installed in the groove 22; an air cavity 16 connected to the outside is provided inside the base 1; two impellers 161 are rotatably connected in the air cavity 16; the two impellers 161 are meshed and driven by a gear set 162; one of the impellers 161 is connected to the output shaft of the drive motor 13; the output shaft of the drive motor 13 is connected to the bracket 2 by a belt drive via a belt 17; an air duct 23 connected to the suction cup 221 is provided inside the bracket 2; and the end of the air duct 23 away from the suction cup 221 is connected to the groove 22.

[0055] As an embodiment of the present invention, the output shaft of the driving motor 13 is provided with a rectangular groove 131; a rectangular rod 132 is slidably connected in the rectangular groove 131; the rectangular rod 132 is connected to the bottom of the rectangular groove 131 by installing a spring 133; a slot 134 is provided at one end of the impeller 161 close to the rectangular rod 132; and an electromagnetic plate 135 is inlaid at the bottom of the rectangular groove 131.

[0056] As an embodiment of the present invention, a circular groove 18 is formed on the output shaft surface of the driving motor 13; a plug rod 181 is slidably connected in the circular groove 18; a slot 171 is formed on the surface of the belt 17; a protrusion engaged with the slot 171 is fixedly connected to the surface of the bracket 2;

[0057] During operation, after the sheet is stamped, the bracket 2 will drive the sheet to rotate downward, so that the horizontal sheet is continuously deflected toward the vertical state; since the side of the stamped sheet away from the mounting rod 21 is a convex surface, and the side close to the mounting plate 12 is a concave surface, the volume and center of gravity of the stamped sheet are both away from the mounting rod 21, that is, when the sheet is in a vertical state, the plane where the center of gravity of the sheet is located is located on one side of the plane where the contact end of the sheet and the push plate 214 is located, so that the stamped sheet will tilt in the direction away from the mounting rod 21 due to the deviation of the center of gravity, so that the stamped sheet will slide off the push plate 214;

[0058] In this regard, the present invention provides a suction cup 221, so that when the user drives the impeller 161 to rotate through the driving motor 13, the impeller 161 can discharge the gas in the air cavity 16 and the groove 22, so that the groove 22 is in a negative pressure state, so that when the suction cup 221 in the groove 22 contacts the plate, the suction cup 221 can adsorb the unpunched edge of the plate, so that the plate can be closely attached to the surface of the mounting rod 21 under the action of the negative pressure adsorption force, thereby preventing the punched plate from tipping away from the mounting rod 21 due to the offset of the center of gravity, and preventing the punched plate from being deformed or damaged due to falling and collision, so that the practical application effect of the present invention is effectively improved;

[0059] In the initial state, the electromagnetic plate 135 is in a power-off state, and the rectangular rod 132 is pushed by the installation spring 133 and inserted into the card slot 134. At this time, the output shaft of the drive motor 13 is connected to the impeller 161, and the hydraulic oil in the rectangular slot 131 is not squeezed by the rectangular rod 132, so that the insertion rod 181 in the circular slot 18 is located inside the circular slot 18 and does not extend out of the circular slot 18; because the belt 17 is made of PTFE material, the belt 17 has a smooth surface. At this time, when the drive motor 13 rotates, the drive motor 13 will directly drive the impeller 161 to rotate, and the output shaft of the drive motor 13 and the belt 17 are in sliding contact; when the user needs to drive the bracket 2 to rotate and transport the plate, it is only necessary to control the electromagnetic plate 135 to be energized, so that the electromagnetic plate 135 can absorb the rectangular rod 132 to extend out of the card slot 134 and squeeze the installation The spring 133 enters the rectangular groove 131, so that the rectangular rod 132 is separated from the impeller 161. At the same time, the rectangular rod 132 entering the rectangular groove 131 squeezes the hydraulic oil in the rectangular groove 131 into the circular groove 18, so that the insertion rod 181 in the circular groove 18 is pushed by the hydraulic oil and extends out of the circular groove 18 and is inserted into the slot 171, so that the output shaft of the drive motor 13 is meshed with the belt 17 through the insertion rod 181 inserted into the slot 171. At this time, the drive motor 13 is controlled to run, so that when the output shaft of the drive motor 13 rotates, the output shaft of the drive motor 13 can drive the belt 17 to rotate around through the insertion rod 181, and because the belt 17 and the bracket 2 are meshed and transmitted through the protrusion, the drive motor 13 drives the bracket 2 to rotate through the belt 17, so that the bracket 2 can drive the plate in the vertical state to rotate to the horizontal state;

[0060] Before the driving motor 13 drives the bracket 2 to rotate, the user first controls the electromagnetic plate 135 to keep the power off, so that the rectangular rod 132 extends out of the rectangular groove 131 and inserts into the card slot 134 under the push of the restoring force of the installation spring 133, so that the rectangular rod 132 is connected to the impeller 161, and the space in the rectangular groove 131 increases, so that the hydraulic oil in the circular groove 18 flows back into the rectangular groove 131, so that the insertion rod 181 in the circular groove 18 is attracted by the negative pressure of the hydraulic oil and enters the circular groove 18 and is separated from the belt 17, so that the driving motor 13 can directly drive the impeller 161 to rotate. Since the two impellers 161 are meshed and driven by the gear set 162, the two impellers 161 can rotate in a direction close to each other under the drive of the gear set 162, so that the air The gas in the cavity 16 is ejected through the end of the cavity 16 connected to the outside world under the pressure of the impeller 161, so that the cavity 16 is in a negative pressure state. Since the cavity 16 is connected to the groove 22 through the air channel 23, the gas in the groove 22 can flow into the cavity 16 through the air channel 23, and finally be discharged from the end of the cavity 16 connected to the outside world, so that the groove 22 is in a negative pressure state. Since the suction cup 221 is in contact with the unstamped edge of the plate at this time, the suction cup 221 can adsorb the unstamped edge of the plate, so that the stamped plate is closely attached to the surface of the mounting rod 21 under the adsorption of the suction cup 221, thereby preventing the stamped plate from tipping away from the mounting rod 21 due to the shift of the center of gravity, and preventing the stamped plate from being deformed or damaged due to falling and collision.

[0061] After the plate is stamped, the user will carry it vertically to the cleaning area for degreasing. After removing the oil and impurities on the surface of the upper and lower plates of the liquid cooling plate after stamping, the brazing flux will be sprayed on the cleaned surface of the liquid cooling plate, and the upper and lower plates of the liquid cooling plate will be brazed to form a complete liquid cooling plate structure; the brazed liquid cooling plate also needs to be surface treated and quality inspected, and finally the qualified liquid cooling plate can be packaged and transported.

[0062] As an embodiment of the present invention, a mounting groove 24 is provided on the side wall of the base 1; the bracket 2 is slidably connected in the mounting groove 24; a fixing groove 25 is provided on the groove wall of the mounting groove 24; a fixing rod 251 is slidably and sealably connected in the fixing groove 25; the fixing rod 251 is connected to the bottom of the fixing groove 25 via a fixing spring 252.

[0063] As an embodiment of the present invention, a rubber block 26 is fixedly connected to one end of the fixing rod 251 away from the bottom of the fixing groove 25; an electromagnetic ring 261 is embedded in the bottom of the fixing groove 25;

[0064] During operation, before the driving motor 13 drives the bracket 2 to rotate, the user controls the electromagnetic plate 135 to remain powered off, so that the driving motor 13 drives the impeller 161 to rotate, so that the driving motor 13 no longer has a driving effect on the bracket 2. Since the bracket 2 is in a vertical state at this time, when the transmission belt 213 transports the plate to the upper end of the base 1, if the friction between the plate and the base 1 is too large, the plate will be pushed by the friction resistance and the transmission belt 213 will drive the bracket 2 to rotate in the direction away from the base 1 through the mounting rod 21, so that the bracket 2 cannot stably transport the plate to the upper end of the upper mold 121. For this purpose, a fixed rod 251 is set. When the driving motor 13 drives the bracket 2 to drive the plate to rotate in the direction close to the base 1, the electromagnetic ring 261 is controlled to be energized, so that the electromagnetic ring 261 can absorb the fixed rod 251 and squeeze the fixed spring 252 into the fixed groove 25, so that the mounting groove 24 is in an open state. Until the driving motor 13 drives the bracket 2 to enter the mounting groove 24, the electromagnetic ring 261 is controlled to be powered off. , so that the fixing rod 251 extends out of the fixing groove 25 and contacts the bracket 2 under the push of the restoring force of the fixing spring 252, so that the fixing rod 251 contacts the bracket 2 through the rubber block 26. Since the rubber block 26 is made of fluororubber material, the rubber block 26 not only has good wear resistance, but also has good friction coefficient and elasticity, so that when the rubber block 26 contacts the bracket 2, the friction between the rubber block 26 and the bracket 2 increases, and as the fixing spring 252 continues to push the rubber block 26 through the fixing rod 251, the rubber block 26 in contact with the bracket 2 is blocked by the bracket 2 and deformed, so that the contact area between the rubber block 26 and the bracket 2 increases, thereby increasing the friction between the rubber block 26 and the bracket 2, and improving the fixing effect between the rubber blocks 26, so as to ensure that the bracket 2 can be fixed in the installation groove 24, so that the transmission belt 213 can stably transport the plate to the upper end of the upper mold 121, so as to ensure that the present invention can operate normally and stably, so that the practicality of the present invention is effectively improved.

[0065] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A production process for a power battery liquid cooling plate, characterized in that: The following steps are involved: S1: Cutting: First select the plate materials required for manufacturing the liquid cooling plate, and then cut the plate materials according to the drawing requirements to obtain the plates of the required size; S2: Plate placing and stamping: the cut plate is placed vertically on the support (2), so that the plate placed vertically on the support (2) is turned over to the top of the base (1) along with the support (2), and the servo motor (215) is controlled to drive the transmission belt (213) to convey the plate to the upper end of the lower die (113) and directly facing the core of the lower die (113); the hydraulic cylinder (112) pushes the upper die (121) and the lower die (113) to close the die, so that the plate at the upper end of the lower die (113) is stamped into the required upper plate or lower plate of the liquid cooling plate; S3: stamping recovery: when the plate is stamped, the upper die (121) is separated from the lower die (113), so that the molded part at the upper end of the lower die (113) is pushed out by the reset rod (141), and the electric push rod (152) pushes the molded part to the upper end of the mounting rod (21) through the push plate (153), and then controls the drive motor (13) to drive the bracket (2) to drive the molded part at the upper end of the mounting rod (21) to flip to a vertical state for easy handling; S4: Brazing: Degrease the upper and lower plates of the stamped liquid cooling plate to remove oil and impurities on the surface of the stamped liquid cooling plate. Then integrate the power receiving coil into the lower plate of the liquid cooling plate. Spray brazing flux on the brazing part of the edge of the cleaned liquid cooling plate. Finally, braze the upper and lower plates of the liquid cooling plate to form a complete liquid cooling plate structure. S5: Post-processing: The liquid cooling plate after brazing needs to be surface treated and quality tested. Finally, the qualified liquid cooling plate can be packaged and transported. Among them, the hydraulic forming machines used in S2-S3 include: A base (1), wherein a support column (11) is fixedly mounted on the upper end of the base (1); the upper end of the support column (11) is fixedly connected to a frame (111); a hydraulic cylinder (112) is arranged between the frame (111) and the base (1); the hydraulic cylinder (112) is fixedly connected to the lower end of the frame (111); the lower end of the hydraulic cylinder (112) is fixedly connected to a mounting plate (12); the mounting plate (12) is slidably connected to the support column (11); an upper die (121) is mounted on the lower end of the support column (11); a lower die (113) facing the upper die (121) is mounted on the upper end of the base (1); A bracket (2), wherein the bracket (2) is rotatably connected to a side wall of a base (1); a driving motor (13) is installed on one side of the base (1); the driving motor (13) is used to drive the bracket (2) to rotate; an end of the bracket (2) away from the base (1) is fixedly connected to a mounting rod (21); an end of the mounting rod (21) away from the bracket (2) is provided with a strip groove (211); a transmission roller (212) and a transmission belt (213) are arranged in the strip groove (211); the transmission roller (212) and the transmission belt (213) are connected by a belt drive; the transmission roller (212) is rotatably connected to the inner wall of the strip groove (211); a push plate (214) is fixedly connected to the outer ring wall of the transmission belt (213); a servo motor (215) is installed on one side of the mounting rod (21); the servo motor (215) is used to drive the transmission roller (212) to rotate; A pushing unit is installed at the upper end of the base (1); the pushing unit is used to push the stamped liquid cooling plate onto the mounting rod (21).

2. A power battery liquid cooling plate production process according to claim 1, characterized in that: A cylindrical groove (14) is provided at the upper end of the lower mold (113); the cylindrical groove (14) surrounds the core of the lower mold (113); a reset rod (141) is slidably connected in the cylindrical groove (14); the reset rod (141) is fixedly connected to the bottom of the cylindrical groove (14) via a supporting spring (142); and an electromagnetic sheet (143) is embedded in the bottom of the cylindrical groove (14).

3. A power battery liquid cooling plate production process according to claim 2, characterized in that: The pushing unit comprises a connecting rod (15); a connecting groove (122) is provided at the lower end of the mounting plate (12); the connecting rod (15) is slidingly and sealingly connected in the connecting groove (122); the connecting rod (15) and the bottom of the connecting groove (122) are fixedly connected via a connecting spring (151); an electric push rod (152) is fixedly connected to one end of the connecting rod (15) away from the connecting groove (122); and a pushing plate (153) is fixedly connected to one end of the electric push rod (152) away from the connecting rod (15).

4. A process for producing a power battery liquid cooling plate according to claim 3, characterized in that: A groove (22) is provided at the upper end of the mounting rod (21); a suction cup (221) is installed in the groove (22); an air cavity (16) communicating with the outside is provided inside the base (1); two impellers (161) are rotatably connected in the air cavity (16); the two impellers (161) are meshed and driven by a gear set (162); one of the impellers (161) is connected to the output shaft of the drive motor (13); the output shaft of the drive motor (13) and the bracket (2) are connected by a belt drive via a belt (17); an air passage (23) communicating with the suction cup (221) is provided inside the bracket (2); an end of the air passage (23) away from the suction cup (221) is connected to the groove (22).

5. A process for producing a power battery liquid cooling plate according to claim 4, characterized in that: The output shaft of the driving motor (13) is provided with a rectangular groove (131); a rectangular rod (132) is slidably connected in the rectangular groove (131); the rectangular rod (132) is connected to the bottom of the rectangular groove (131) via a mounting spring (133); a clamping groove (134) is provided at one end of the impeller (161) close to the rectangular rod (132); and an electromagnetic plate (135) is inlaid at the bottom of the rectangular groove (131).

6. A process for producing a power battery liquid cooling plate according to claim 5, characterized in that: A circular groove (18) is provided on the surface of the output shaft of the driving motor (13); an insertion rod (181) is slidably connected in the circular groove (18); a slot (171) is provided on the surface of the belt (17); and a protrusion that meshes with the slot (171) is fixedly connected to the surface of the bracket (2).

7. A process for producing a power battery liquid cooling plate according to claim 6, characterized in that: The side wall of the base (1) is provided with a mounting groove (24); the bracket (2) is slidably connected in the mounting groove (24); the groove wall of the mounting groove (24) is provided with a fixing groove (25); a fixing rod (251) is slidably and sealably connected in the fixing groove (25); the fixing rod (251) is connected to the groove bottom of the fixing groove (25) via a fixing spring (252).

8. A process for producing a power battery liquid cooling plate according to claim 7, characterized in that: One end of the fixing rod (251) away from the bottom of the fixing groove (25) is fixedly connected to a rubber block (26); the bottom of the fixing groove (25) is inlaid with an electromagnetic ring (261).

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