CN206455160U - A kind of cooling structure of bus-bar mould - Google Patents

Abstract

A cooling structure for a busbar mould, comprising a mold body, the mold body is provided with a plurality of linearly arranged forming grooves, and a cooling device is arranged below the forming grooves, and it is characterized in that: the mold body includes a constant temperature area, the casting welding area and the thermal insulation area, the forming groove is set in the casting welding area, and each of the casting welding areas is correspondingly provided with an independent cooling device, and the cooling device includes setting The cooling body below the casting and welding area and/or the heat preservation area, the cooling body is provided with a liquid inlet pipe along the direction of the forming groove arrangement, and the liquid inlet pipe is opened toward the bottom of the forming groove There is a water spray port, and the cooling body is also provided with a return groove, and the height of the return flow groove is lower than that of the water spray port. The utility model improves the cooling efficiency by arranging a cooling system independently corresponding to the casting and welding area, and at the same time ensures the cooling consistency of different casting and welding areas, facilitates the constant temperature control of the mold, thereby improving the casting and welding effect.

Description

A cooling structure for a busbar mold

technical field

The utility model relates to the field of polar plate casting and welding equipment, in particular to a cooling structure for a bus bar mould.

Background technique

In the battery industry, especially the lead-acid battery industry, commonly used parts include tabs and matching busbars. In the traditional manufacturing process of busbars, it is necessary to prepare busbar molds and lead pots. The busbars of this process The manufacturing efficiency of the row is very low, and the actual casting and welding effect is very poor. At the same time, because the mold is immersed in the lead pot, it needs to be cooled after the casting and welding is completed. The traditional cooling uses air cooling, which is very unsatisfactory and inefficient.

In the prior art, the circulation pipe is used for cooling. The liquid inlet pipe is connected to the liquid inlet pipe from one side of the mold. The pipeline cools the forming grooves of two different casting and welding parts respectively. Since the temperature of the inlet pipeline and the outlet pipeline are different, the cooling effect is also different, which has a great influence on the casting and welding.

For example, the Chinese patent document with the authorized announcement number CN 202210457 U discloses a water cooling device for busbars, which uses water inlet pipes and outlet pipes to cool down busbars. However, such a water cooling device has the following disadvantages: First, it consumes a lot of resources , Cooling water consumes several tons a day. Secondly, water cooling is carried out in the state of high temperature of the mold. The temperature difference fluctuates greatly, and the mold is prone to cracks. Thirdly, in the process of busbar production, the temperature control is more strict and personalized. , there are some cooling links to cool down the equipment, but the temperature cannot be too low, and the cooling effect of water cooling is large and rapid, and it is easy to cool down transitionally, which will affect the heating up of the equipment again.

Utility model content

The purpose of this utility model is to provide a cooling structure for busbar moulds. This utility model improves the cooling efficiency by setting a cooling system independently corresponding to the casting and welding areas, and at the same time ensures the cooling consistency of different casting and welding areas and facilitates the constant temperature of the mold. control, thereby improving the cast welding effect.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a cooling structure for a bus bar mold, including a mold body, on which a plurality of linearly arranged forming grooves are arranged, and the lower part of the forming groove A cooling device is provided, and it is characterized in that: the mold body includes a constant temperature zone, a casting and welding zone, and a heat preservation zone, and the forming groove is arranged in the casting and welding zone, and each of the casting and welding zones corresponds to An independent cooling device is provided, and the cooling device includes a cooling body arranged under the casting welding area and/or the heat preservation area, and a liquid inlet is provided on the cooling body along the direction of the forming groove arrangement. The liquid inlet pipe is provided with a water spray port toward the bottom of the forming tank, and the cooling body is also provided with a return tank, and the height of the return channel is lower than that of the water spray port.

As a preference of the present invention, the distance difference between the adjacent water spray ports on the liquid inlet pipe and the forming groove is less than 1.5 mm.

As a preference of the present invention, the forming groove includes a cast-welded part and a bridge-crossing part, the distance from the bottom of the cast-welded part to the axis of the liquid inlet pipe is greater than the bridge-spanned part, and the The liquid inlet pipe includes a convex part arranged on the upper part and corresponding to the position of the cast welding part and a concave part corresponding to the position of the bridge part, and the water spray port is arranged on the concave part and the convex part faces the molding on one side of the bottom of the trough.

As a preference of the present invention, the cooling body is detachably connected to the mold body, and a heat insulation layer is directly provided between the cooling body and the mold body.

As a preference of the present invention, the side of the convex portion facing the constant temperature zone is provided with an indented groove for reducing the contact area between the convex portion and the mold body.

As a preference of the present invention, the mold body and/or the cooling body is provided with a return chamber, the return groove is arranged at the bottom of the return chamber, and the water spray port communicates with the return chamber.

As a preference of the present invention, the return cavity is arranged on the mold body and the return cavity extends to the heat preservation area.

As a preference of the present utility model, one end of the liquid inlet pipe on the cooling body is open and the other end is sealed.

In summary, the utility model has the following beneficial effects:

1. Each casting and welding area corresponds to a separate liquid inlet pipe, so as to ensure that all casting and welding areas have the same cooling effect at the same time;

2. Spray cooling is adopted, and the cooling efficiency is high;

3. Use the reflux tank to recover the coolant after heat exchange, eliminating the influence of the reflux coolant on the constant temperature control;

4. Reduce the contact between the cooling body and the mold body, and reduce the interference brought by the cooling body itself to lower the temperature of the mold body to the constant temperature control.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic cross-sectional structure diagram at A-A in Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram of the cooling body of the present utility model;

In the picture:

1. Mold body, 2. Forming tank, 1-1, constant temperature zone, 1-2, casting and welding zone, 1-3, heat preservation zone, 3. cooling device, 3-1, cooling body, 3-2, liquid inlet Pipe, 3-3, water spout, 3-4, reflow tank, 2-1, casting and welding part, 2-2, cross bridge part, 3-5, convex part, 3-6, concave part, 3-5- 1. Recessed groove, 4. Return cavity.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Embodiment 1, as shown in Figures 1 to 3, the utility model embodiment includes a mold body 1, a plurality of linearly arranged forming grooves 2 are arranged on the mold body 1, and a cooling device 3 is arranged below the forming groove 2, which It is characterized in that the mold body 1 includes a constant temperature zone 1-1 for supplying lead to the forming tank 2, a casting welding zone 1-2 for casting welding, and a heat preservation zone for insulating the casting welding zone 1-2, and the forming tank 2 Set in the casting welding area 1-2, the constant temperature area 1-1, the casting welding area 1-2 and the heat preservation area are independently equipped with heaters, the heaters mainly use ceramic heating bodies, and each casting welding area 1-2 Correspondingly, an independent cooling device 3 is provided, and the cooling device 3 includes a cooling body 3-1 arranged under the casting welding zone 1-2 and/or the heat preservation zone. For this embodiment, only the casting welding zone 1 is required for cooling. -2, but since the heat preservation area and the casting welding area 1-2 are set on the same mold body 1, and the cooling body 3-1 also has a certain width, the cooling body 3-1 exists only under the casting welding area 1-2 Set and set up two embodiments below the casting and welding area 1-2 and the heat preservation area, and the cooling body 3-1 is provided with a liquid inlet pipe 3 for inputting cooling liquid to the cooling body 3-1 along the direction of the arrangement of the forming grooves 2 -2, one end of the liquid inlet pipe 3-2 on the cooling body 3-1 is open and the other end is sealed so that the cooling liquid has a certain water pressure when it enters the liquid inlet pipe 3-2, so that the liquid can be pushed out of the water nozzle 3-3, the liquid inlet pipe 3-2 is provided with a water spray port 3-3 for spraying water to the bottom of the forming tank 2 to complete the cooling of the forming tank 2, and the cooling body 3-1 is also provided with There is a reflux tank 3-4 for outputting the cooling liquid after heat exchange, and the setting height of the reflux tank 3-4 is lower than that of the water spray port 3-3. In this embodiment, each casting welding zone 1-2 is correspondingly set An independent cooling device 3, which ensures that each water inlet pipe independently corresponds to a casting zone 1-2 instead of using the reflux method as in the prior art, and the reflux method will cause the cooling effect of the liquid inlet section to be greater than that of the liquid outlet , so the cooling effect of the casting welding zone 1-2 on both sides is different, which will also lead to the decline of the casting welding effect, and the quality of the bus bar is unstable. It is the same, the reflux liquid of the cooling liquid does not participate in the cooling work but directly outputs the cooling body 3-1 through the reflux tank 3-4 to complete the cycle. The mold body 1 and/or the cooling body 3-1 is provided with a backflow chamber 4 for recycling the cooling liquid after heat exchange. The backflow groove 3-4 is arranged at the bottom of the backflow chamber 4. 4 connections, the setting of the return chamber 4 can avoid excessive contact of the cooling liquid with unnecessary cooling areas, resulting in difficulties in constant temperature control. The return cavity 4 is set on the mold body 1 and the return cavity 4 extends to the heat preservation area. The heat preservation area also needs constant temperature control during actual work. If the temperature of the cooling liquid after heat exchange is still far lower than the temperature of the heat preservation area Yes, if the return cavity 4 is opened and extends to the heat preservation area, it may cause the returned coolant to contact the inner wall of the mold body 1 near the heat preservation area, thereby causing the temperature of the heat preservation area to be lowered. The cooling body 3-1 is detachably connected to the mold body 1, and the cooling body 3-1 and the mold body 1 are directly provided with a heat insulation layer, which is disassembled and connected by fasteners such as high-temperature resistant stainless steel screws, and the heat insulation layer is made of asbestos material. As a result, in actual use, the cooling body 3-1 has a longer life than the mold body 1, so when the mold body 1 is damaged, the cooling body 3-1 may not be damaged. This setting facilitates the cooling body 3-1 again. use, but also facilitates maintenance.

In the embodiment of the utility model, the distance difference between the adjacent water spray port 3-3 on the liquid inlet pipe 3-2 and the forming groove 2 is less than 1.5mm. The water spray port 3-3 sprays out, and the distance difference between the adjacent water spray port 3-3 and the forming groove 2 is controlled to ensure the synchronization and consistency of cooling. The forming tank 2 includes a casting and welding part 2-1 and a bridge part 2-2. The distance from the bottom of the casting and welding part 2-1 to the axis of the pipe body of the liquid inlet pipe 3-2 is greater than that of the bridge part 2-2. The pipe 3-2 includes a convex part 3-5 arranged on the upper part and corresponding to the position of the cast-welding part 2-1 and a concave part 3-6 corresponding to the position of the bridge part 2-2, and the water spray port 3-3 is arranged in the concave part 3 -6 and the protruding part 3-5 on the side surface facing the bottom of the forming groove 2, because part of the busbar needs to consider the assembly problem, it is necessary for the busbar to have a bridge to go around the separator of the battery case, and for the busbar with For the busbar mold with core-pulling function, the cross bridge can be directly formed in the forming groove 2, but the bottom position of the bridge part 2-2 used to form the bridge is lower than the cast welding part 2-1, which is closer to the outlet. For the liquid pipe, the convex part 3-5 and the concave part 3-6 are set on the liquid outlet pipe to match the shape of the bottom of the forming tank 2, which can better shorten the spraying distance of the cooling liquid and ensure that the cooling liquid can cool the outer wall of the forming tank 2 most effectively. At the same time, the technical feature that the distance difference between the adjacent water spray ports 3-3 on the liquid inlet pipe 3-2 and the forming groove 2 is less than 1.5mm can be realized on the mold body 1 with the bridge portion 2-2. The side of the convex portion 3-5 towards the constant temperature zone 1-1 side is provided with an indented groove 3-5-1 for reducing the contact area between the convex portion 3-5 and the mold body 1, due to the constant temperature zone of the present utility model An important feature of 1-1 is constant temperature control, so reducing the contact between cooling body 3-1 and mold body 1 can effectively reduce the heat transfer between the two, which is more conducive to the stability of constant temperature control.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. a kind of cooling structure of bus-bar mould, including die body（1）, the die body（1）On be provided with it is multiple linearly aligned Forming tank（2）, the forming tank（2）Lower section be provided with cooling device（3）, it is characterised in that：Described die body（1）Including perseverance Warm area（1-1）, cast welding area（1-2）And for heat preservation zone, the forming tank（2）It is arranged at the cast welding area（1-2）It is interior, often The individual cast welding area（1-2）It is correspondingly arranged an independent cooling device（3）, described cooling device（3）Including setting It is placed in the cast welding area（1-2）And/or the cooling body below the heat preservation zone（3-1）, the cooling body（3-1）On along it is described into Type groove（2）Orientation offers feed tube（3-2）, the feed tube（3-2）On towards the forming tank（2）Bottom direction is opened Provided with water jet（3-3）, the cooling body（3-1）On be additionally provided with backflash（3-4）, the backflash（3-4）Setting it is high Degree is less than the water jet（3-3）.

2. a kind of cooling structure of bus-bar mould according to claim 1, it is characterised in that：Described feed tube（3- 2）The upper adjacent water jet（3-3）To the forming tank（2）Range difference be less than 1.5mm.

3. a kind of cooling structure of bus-bar mould according to claim 1 or 2, it is characterised in that：Described forming tank （2）Including cast welding portion（2-1）And overbridge part（2-2）, the cast welding portion（2-1）Bottom is to the feed tube（3-2）Body The distance of axial line is more than the overbridge part（2-2）, the feed tube（3-2）Including be arranged on top and with the cast welding portion （2-1）The corresponding convex portion in position（3-5）And with the overbridge part（2-2）The corresponding recess in position（3-6）, the water jet （3-3）It is arranged at the recess（3-6）With the convex portion（3-5）Towards the forming tank（2）On one side surface of bottom.

4. a kind of cooling structure of bus-bar mould according to claim 1, it is characterised in that：The cooling body（3-1） With the die body（1）It is detachably connected, the cooling body（3-1）With the die body（1）It is provided directly with thermal insulation layer.

5. a kind of cooling structure of bus-bar mould according to claim 3, it is characterised in that：The convex portion（3-5）Court To the flat-temperature zone（1-1）It is provided with the side of side for reducing the convex portion（3-5）With the die body（1）Contact surface The long-pending groove that caves in（3-5-1）.

6. a kind of cooling structure of bus-bar mould according to claim 1, it is characterised in that：The die body（1）And/or Cooling body（3-1）On offer back cavity（4）, the backflash（3-4）It is arranged at the back cavity（4）Bottom, the spray The mouth of a river（3-3）With the back cavity（4）UNICOM.

7. a kind of cooling structure of bus-bar mould according to claim 6, it is characterised in that：The back cavity（4）If It is placed in the die body（1）Upper and described back cavity（4）Extend to the heat preservation zone.

8. a kind of cooling structure of bus-bar mould according to claim 1, it is characterised in that：Described feed tube（3- 2）In the cooling body（3-1）On the one end open other end sealing.