Cooling cold plate

Abstract

The utility model discloses a heat dissipation cold plate, which relates to the technical field of heat dissipation cold plates and comprises a base plate, a cover plate and a heat dissipation plate, battery fixing rods are symmetrically arranged on the surface of the base plate, threaded holes are arranged on the fixing rods, the heat dissipation plate is arranged on the back of the base plate, positioning holes are symmetrically arranged on two sides of the surface of the heat dissipation plate, and positioning columns are symmetrically arranged on two sides of the bottom of the base plate. The heat dissipation plate and the base plate are positioned and installed through positioning columns, a liquid inlet pipe is arranged on one side of the surface of the base plate, a liquid outlet pipe is arranged on the other side of the surface of the base plate, and a cooling channel is arranged on the surface of the heat dissipation plate. Liquid is arranged in the cooling channel, is poured from the liquid inlet pipe, flows through the cooling channel and finally flows out from the liquid outlet pipe, and heat is taken away through the liquid; the cooling channels are arranged on the cooling plate, the cooling effect is achieved, the cooling plate can rapidly transfer heat and cool down, the temperature uniformity is further optimized, the symmetrical reinforcing ribs are arranged in the cooling channels and comprise the transverse fins and the vertical fins, the transverse fins and rib positions are increased, the bearing capacity is further enhanced, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation cold plates, and particularly relates to a heat dissipation cold plate. Background Art

[0002] During the button processing, excessive temperature is also related to the safety of operators. The cold plate is usually a closed cavity composed of heat-conducting metals such as copper and aluminum, which indirectly transfers the heat of the heat-generating device to the liquid enclosed in the circulating pipeline, and takes away the heat through the liquid. The cold plate can timely export the excess heat generated during the operation of the power battery and avoid the occurrence of excessive temperature rise.

[0003] However, most of the existing heat dissipation cold plates adopt a series of serpentine flow channels, which have a long flow path and relatively poor temperature uniformity, resulting in uneven heat dissipation of the product. At the same time, the longitudinal tensile structure of the heat dissipation cold plate is strengthened, but the strength in the transverse direction is weak, making it easy to deform transversely and the load-bearing capacity is weak, reducing the practicability. Summary of the Utility Model

[0004] A heat dissipation cold plate proposed by the utility model solves the existing problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A heat dissipation cold plate includes a base plate, a cover plate and a heat dissipation plate. Rectangular battery fixing rods are symmetrically arranged on the surface of the base plate, and threaded holes are provided on the battery fixing rods. A heat dissipation plate is arranged on the back of the base plate. Positioning holes are symmetrically arranged on both sides of the surface of the heat dissipation plate. Positioning columns are symmetrically arranged on both sides of the bottom of the base plate. The heat dissipation plate and the base plate are positioned and installed through the positioning columns. A liquid inlet pipe is arranged on one side of the surface of the base plate, and a liquid outlet pipe is arranged on the other side of the surface of the base plate. Cooling channels are arranged on the surface of the heat dissipation plate.

[0006] Preferably, the cover plate is in a concave-convex hollow shape, the base plate and the heat dissipation plate are both in a flat plate shape, and the sizes of the base plate and the heat dissipation plate are exactly the same.

[0007] Preferably, a plurality of recessed grooves are arranged on the surface of the heat dissipation plate.

[0008] Preferably, symmetric reinforcing ribs are arranged in the cooling channels, and liquid is arranged in the cooling channels.

[0009] Preferably, after being positioned by the positioning columns between the base plate and the cover plate, they are connected by tunnel furnace brazing.

[0010] Preferably, one end of the liquid inlet pipe is communicated with one side of the cooling channel, and one end of the liquid outlet pipe is communicated with the other side of the cooling channel.

[0011] Preferably, a number of uniformly distributed mounting holes are arranged around the substrate and the heat dissipation plate. The substrate and the heat dissipation plate are connected by brazing, and the mounting holes distributed around are used to install the heat dissipation plate in cooperation with bolts.

[0012] The beneficial effects of the present utility model are as follows: the surface of the heat dissipation plate is provided with a cooling channel, and a liquid is arranged in the cooling channel. The liquid is poured from the liquid inlet pipe, flows through the cooling channel, and finally flows out from the liquid outlet pipe. The heat is carried away by the liquid, playing a role in cooling, enabling the cold plate to transfer heat and cool down quickly, further optimizing the temperature uniformity. The cooling channel is provided with symmetrically arranged reinforcing ribs, and the reinforcing ribs include two types of fins, namely horizontal and vertical fins. The horizontal fins and rib positions are increased, further enhancing the load-bearing capacity and improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present utility model.

[0014] Figure 2 is a structural schematic diagram of the substrate of the present utility model.

[0015] Figure 3 is a structural schematic diagram of the cover plate of the present utility model.

[0016] Figure 4 is a structural schematic diagram of the heat dissipation plate of the present utility model.

[0017] Reference numerals in the drawings: 1, substrate; 2, cover plate; 3, heat dissipation plate; 4, battery fixing rod; 5, threaded hole; 6, positioning hole; 7, positioning post; 8, liquid inlet pipe; 9, liquid outlet pipe; 10, cooling channel; 11, reinforcing rib; 12, recessed groove; 13, mounting hole; 14, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Referring to Figures 1-4 as shown, a heat dissipation cold plate includes a substrate 1, a cover plate 2 and a heat dissipation plate 3. Rectangular battery fixing rods 4 are symmetrically arranged on the surface of the substrate 1, threaded holes 5 are arranged on the battery fixing rods 4, the heat dissipation plate 3 is arranged on the back surface of the substrate 1, positioning holes 6 are symmetrically arranged on both sides of the surface of the heat dissipation plate 3, positioning posts 7 are symmetrically arranged on both sides of the bottom of the substrate 1, and the heat dissipation plate 3 and the substrate 1 are positioned and installed through the positioning posts 7. A liquid inlet pipe 8 is arranged on one side of the surface of the substrate 1, a liquid outlet pipe 9 is arranged on the other side of the surface of the substrate 1, and a cooling channel 10 is arranged on the surface of the heat dissipation plate 3. The liquid is poured from the liquid inlet pipe 8, flows through the cooling channel 10, and finally flows out from the liquid outlet pipe 9, enabling the cold plate to transfer heat and cool down quickly, further optimizing the temperature uniformity.

[0020] The cover plate 2 is concave-convex and hollowed out, playing a role in preliminary cooling and heat dissipation. The substrate 1 and the heat dissipation plate 3 are both flat. The substrate 1 and the heat dissipation plate 3 have exactly the same size, making their assembly more accurate. There are several recessed grooves 12 on the surface of the heat dissipation plate 3, which are formed by stamping. Symmetrical reinforcing ribs 11 are provided in the cooling channel 10. The reinforcing ribs 11 include horizontal and vertical fins. The horizontal fins and rib positions are increased, further enhancing the load-bearing capacity. A mutually connected network is formed between the cooling channel 10 and the reinforcing ribs 11, making the liquid flow through more thoroughly and comprehensively, further improving the cooling effect. There is liquid in the cooling channel 10, and the heat is taken away by the liquid, playing a role in cooling.

[0021] The rectangular battery fixing rod 4 on the substrate 1 strengthens the strength of the heat dissipation plate 3 and increases its load-bearing capacity. Threaded holes 5 are pre-installed on the battery fixing rod 4, making it convenient for installation and connection, making it more convenient to use and saving time and effort in installation. One end of the liquid inlet pipe 8 is communicated with one side of the cooling channel 10, and one end of the liquid outlet pipe 9 is communicated with the other side of the cooling channel 10, facilitating circulation and cooling and dissipating heat from the whole. A number of uniformly distributed mounting holes 13 are arranged around the substrate 1 and the heat dissipation plate 3. The mounting holes 13 distributed around are used for installing the heat dissipation plate 3. The substrate 1 and the heat dissipation plate 3 are assembled conveniently through the cooperation of bolts 14 and the mounting holes 13.

[0022] Working principle: When the device of the present utility model is in use, first, the substrate 1 and the battery fixing rod 4 are connected by a positioning pin, which is convenient and fast for assembly. After positioning and fixing the other side of the substrate 1 and the heat dissipation plate 3 through the positioning post 7, they are brazed in a tunnel furnace. The workpiece to be processed is placed on the cover plate 2. The cover plate 2 is concave-convex and hollowed out, which can play a certain role in heat dissipation. At the same time, the liquid is poured into the liquid inlet pipe 8 and flows through the cooling channel 10. Symmetrical reinforcing ribs 11 are provided in the cooling channel 10. The reinforcing ribs 11 include horizontal and vertical fins. The horizontal fins and rib positions are increased, further enhancing the load-bearing capacity. A mutually connected network is formed between the cooling channel 10 and the reinforcing ribs 11, making the liquid flow through more thoroughly and comprehensively, further improving the cooling effect. Finally, it flows out from the liquid outlet pipe 9, enabling the cold plate to transfer heat and cool down quickly and further optimizing the temperature uniformity.

[0023] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A heat dissipation cold plate, comprising a base plate (1), a cover plate (2) and a heat dissipation plate (3), characterized in that: A battery fixing rod (4) with a rectangular structure is symmetrically arranged on the surface of the substrate (1), and a threaded hole (5) is arranged on the battery fixing rod (4). A heat sink (3) is arranged on the back of the substrate (1), and positioning holes (6) are symmetrically arranged on both sides of the surface of the heat sink (3). Positioning columns (7) are symmetrically arranged on both sides of the bottom of the substrate (1), and the heat sink (3) and the substrate (1) are positioned and installed via the positioning columns (7). A liquid inlet pipe (8) is arranged on one side of the surface of the substrate (1), and a liquid outlet pipe (9) is arranged on the other side of the surface of the substrate (1). A cooling channel (10) is arranged on the surface of the heat sink (3).

2. The heat dissipation cold plate according to claim 1, characterized in that: The cover plate (2) is in a concave-convex hollow shape, the base plate (1) and the heat dissipation plate (3) are both in a flat plate shape, and the base plate (1) and the heat dissipation plate (3) are completely the same in size.

3. The heat dissipation cold plate according to claim 1, characterized in that: A plurality of recessed grooves (12) are provided on the surface of the heat dissipation plate (3).

4. The heat dissipation cold plate according to claim 1, characterized in that: Symmetrical reinforcing ribs (11) are provided in the cooling channel (10), and liquid is provided in the cooling channel (10).

5. The heat dissipation cold plate according to claim 1, characterized in that: After the positioning columns (7) are positioned and installed between the base plate (1) and the cover plate (2), they are placed in a tunnel furnace for brazing connection.

6. The heat dissipation cold plate according to claim 1, characterized in that: One end of the liquid inlet pipe (8) is in communication with one side of the cooling channel (10), and one end of the liquid outlet pipe (9) is in communication with the other side of the cooling channel (10).

7. The heat dissipation cold plate according to claim 1, characterized in that: The base plate (1) and the heat sink (3) are both provided with a plurality of evenly distributed mounting holes (13) around them; the base plate (1) and the heat sink (3) are connected by brazing; the mounting holes (13) distributed around them cooperate with bolts (14) for mounting the heat sink (3).

Images