Hot press head and hot press equipment

Abstract

This invention relates to a hot press head and hot press equipment, belonging to the technical field of hot press equipment. It includes a base, a heat insulation block, a heating element, a support member, a first heat dissipation hole, and a pipe connector. The heat insulation block is disposed on the base, and the heating element is disposed on the side of the heat insulation block facing away from the heating element. The support member is disposed between the heating element and the heat insulation block, supporting the heating element on the heat insulation block. The gap between the heating element and the heat insulation block forms a heat dissipation cavity. The first heat dissipation hole is disposed on the heat insulation block, with one end communicating with the heat dissipation cavity. The pipe connector is disposed on the heat insulation block or the base, for sequentially delivering heat dissipation airflow to the first heat dissipation hole and the heat dissipation cavity. This invention significantly reduces the direct contact area between the heating element and the heat insulation block, reduces heat conduction, increases the heating rate of the heating element, and significantly improves heat dissipation efficiency and uniformity.

Description

Technical Field

[0001] This invention relates to the technical field of hot pressing equipment, and in particular to a hot pressing head and hot pressing equipment. Background Technology

[0002] Thermocompression bonding technology is one of the key processes in microelectronic packaging, semiconductor manufacturing, and advanced electronic assembly. It is a solid-state bonding process that combines heat and force to cause plastic deformation between two thin sheets, forming a clean surface with close contact. The thermocompression head is the core component of thermocompression bonding technology, and its performance directly determines the bonding quality, efficiency, and yield.

[0003] The hot press head mainly consists of a heating element, a heat insulation block, and a base. The heating element provides a precise and controllable heat source to achieve rapid heating of the bonding area and maintain the required temperature uniformity and stability. The heat insulation block can block heat transfer from the high-temperature heating element to the downstream base to the maximum extent, reducing heat loss and improving thermal efficiency. At the same time, in order to dissipate heat from the heat insulation block, a serpentine channel is arranged on the side of the heat insulation block facing the heating element. The channel contacts the heating element, and a cooling airflow is introduced into the channel. The flow of the cooling airflow dissipates heat from the contact surface between the heat insulation block and the heating element.

[0004] However, in actual use, if the contact area between the heat insulation block and the heating element is too large, the heating element will heat up more slowly. At the same time, when the groove of the heat insulation block contacts the heating element, heat will be dissipated first at the groove, resulting in poor heat dissipation uniformity. There is currently no publicly available technical solution that can improve both the heat dissipation effect of the heating element and the heat dissipation uniformity. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a hot press head and a hot press device to solve the technical problems in the prior art, such as large contact area between the heat insulation block and the heating element, slow heating rate of the heating element, and poor heat dissipation uniformity.

[0006] This invention provides a hot press head, comprising:

[0007] Base;

[0008] A heat insulation block is installed on the base;

[0009] A heating element is disposed on the side of the heat insulation block opposite to the heating element.

[0010] A support member is disposed between the heating element and the heat insulation block for supporting the heating element on the heat insulation block, and the gap between the heating element and the heat insulation block forms a heat dissipation cavity;

[0011] The first heat dissipation hole is provided on the heat insulation block, and one end of it is connected to the heat dissipation cavity;

[0012] A pipe joint is provided on the heat insulation block or the base to sequentially deliver the heat dissipation airflow to the first heat dissipation hole and the heat dissipation cavity.

[0013] Optionally, the heat insulation block has a heat dissipation groove on the side facing the heating element, the internal space of the heat dissipation groove forms a heat dissipation cavity, the first heat dissipation hole is disposed at the bottom of the heat dissipation groove, and the support member is disposed in the heat dissipation groove and abuts against the heating element;

[0014] The heat insulation block has an exhaust hole on its side wall, which is connected to the interior of the heat dissipation groove to discharge the heat dissipation airflow in the heat dissipation cavity from the heat insulation block.

[0015] Optionally, the carrier includes:

[0016] The first column is provided in multiple rectangular arrangements on the side of the heat insulation block facing the heating element;

[0017] The second column is located at the center of the side of the heat insulation block facing the heating element and is situated between a plurality of first columns, and the first heat dissipation hole is located between the first column and the second column.

[0018] There are multiple third columns, and a third column is set between each two adjacent first columns.

[0019] Optionally, the heating element can be detachably connected to the first and second columns.

[0020] Optionally, at least four first heat dissipation holes are provided, and a plurality of the first heat dissipation holes are arranged in a rectangular pattern on the heat insulation block.

[0021] Optionally, the opening of the first heat dissipation hole facing the heating element is configured to be open.

[0022] Optionally, it also includes a guide plate, which is disposed at the exhaust port. The guide plate has a guide hole located on the side wall of the heat insulation block facing the base. The heat dissipation airflow discharged from the exhaust port passes through the guide hole along the guide plate.

[0023] Optionally, the deflector includes:

[0024] The first plate is located above the end of the exhaust hole facing away from the heat dissipation cavity;

[0025] The second plate is connected to the first plate on one side and extends toward the base on the other side; the second plate is inclined.

[0026] The third plate is disposed on the side of the second plate opposite to the first plate, with one end connected to the second plate and the other end extending toward the base. The flow guide hole is formed on the third plate.

[0027] Optionally, the pipe joint is disposed on the base, and the base is provided with a second heat dissipation hole. The second heat dissipation hole is connected to the pipe joint. When the base and the heat insulation block are connected, the first heat dissipation hole and the second heat dissipation hole correspond to each other and are connected.

[0028] The present invention also provides a hot pressing device, including the aforementioned hot pressing head.

[0029] The technical solution of the present invention has the following advantages:

[0030] The hot press head provided by this invention, by setting only a carrier between the heating element and the heat insulation block, leaves a gap between the heating element and the heat insulation block to form a heat dissipation cavity, and uses a pipe joint to allow heat dissipation airflow into the first heat dissipation hole, and diffuses from the first heat dissipation hole toward the heat dissipation cavity into the heat dissipation cavity. Therefore, heat dissipation can be achieved directly through the heat dissipation airflow without contacting the heat dissipation through the channel, which greatly reduces the direct contact area between the heating element and the heat insulation block, reduces heat conduction, and increases the heating rate of the heating element. At the same time, after the heat dissipation airflow enters the heat dissipation cavity through the first heat dissipation hole, it will evenly wash the back of the heating element, and the heat dissipation airflow and the back of the heating element will make uniform contact, avoiding the heat dissipation airflow being confined in the channel, which significantly improves the heat dissipation efficiency and uniformity. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of the hot press head of the present invention;

[0033] Figure 2 This is an exploded view of the structure between the heating element, the heat insulation block, and the base in this invention;

[0034] Figure 3 This is a schematic diagram of the front structure of the heat insulation block in this invention;

[0035] Figure 4 This is a schematic diagram of the back structure of the heat insulation block in this invention;

[0036] Figure 5This is a simulated temperature change cloud map of the surface temperature of the heating element with a flow velocity of 94.4 m / s and a support height of 2 mm in this invention, from 0 s to 5 s.

[0037] Figure 6 This is a simulated temperature change cloud map of the surface temperature of the heating element with a flow velocity of 94.4 m / s and a support height of 1 mm in this invention, from 0 s to 5 s.

[0038] Figure 7 This is a simulated temperature change cloud map of the surface temperature of the heating element with a flow velocity of 94.4 m / s and a support height of 0.8 mm in this invention, from 0 s to 5 s.

[0039] Figure 8 This is a graph showing the surface temperature change of the heating element at different heights in the present invention from 0s to 5s.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Base; 2. Heat insulation block; 3. Heating element; 4. Supporting component; 41. First column; 42. Second column; 43. Third column; 5. First heat dissipation hole; 6. Pipe connector; 7. Heat dissipation groove; 8. Exhaust hole; 9. Guide plate; 91. First plate; 92. Second plate; 93. Third plate; 10. Second heat dissipation hole; 11. Through hole; 12. First connecting part; 13. Second connecting part; 14. Hollowed-out part; 15. Protrusion; 151. First component; 152. Second component; 16. Bolt; 17. Guide hole. Detailed Implementation

[0042] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0043] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0044] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0045] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0046] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0047] Example 1

[0048] Reference Figures 1-4 As shown, the present invention provides a hot press head, including a base 1, a heat insulation block 2, a heating element 3, a support member 4, a first heat dissipation hole 5, and a pipe connector 6. The heat insulation block 2 is disposed on the base 1, the heating element 3 is disposed on the side of the heat insulation block 2 facing away from the heating element 3, the support member 4 is disposed between the heating element 3 and the heat insulation block 2 and connected to the top of the heat insulation block 2, for supporting the heating element 3 on the heat insulation block 2, there is a gap between the heating element 3 and the heat insulation block 2, the gap between the heating element 3 and the heat insulation block 2 forms a heat dissipation cavity, the first heat dissipation hole 5 is disposed on the heat insulation block 2, one end of which communicates with the heat dissipation cavity, and the pipe connector 6 is disposed on the heat insulation block 2 or the base 1, for sequentially passing heat dissipation airflow into the first heat dissipation hole 5 and the heat dissipation cavity.

[0049] By setting only a support member 4 between the heating element 3 and the heat insulation block 2, a gap is left between the heating element 3 and the heat insulation block 2 to form a heat dissipation cavity. The heat dissipation airflow is introduced into the first heat dissipation hole 5 through the pipe joint 6 and diffuses from the first heat dissipation hole 5 towards the heat dissipation cavity into the heat dissipation cavity. Therefore, heat dissipation can be achieved directly through the contact of the heat dissipation airflow without the need for contact through the channel. This greatly reduces the direct contact area between the heating element 3 and the heat insulation block 2, reduces heat conduction, and increases the heating rate of the heating element 3. At the same time, after the heat dissipation airflow enters the heat dissipation cavity through the first heat dissipation hole 5, it will evenly wash the back of the heating element 3. The heat dissipation airflow and the back of the heating element 3 are in uniform contact, avoiding the heat dissipation airflow being confined in the channel, which significantly improves the heat dissipation efficiency and uniformity.

[0050] Specifically, the pipe connector 6 is set and connected to the side wall of the base 1. The base 1 has a second heat dissipation hole 10, which penetrates the top surface of the base 1. The pipe connector 6 and the second heat dissipation hole 10 are connected. When the base 1 and the heat insulation block 2 are connected, the first heat dissipation hole 5 and the second heat dissipation hole 10 are connected, thus forming a connected heat dissipation channel. After the external heat dissipation airflow is introduced through the pipe connector 6, the heat dissipation airflow can enter the second heat dissipation hole 10 and the first heat dissipation hole 5 in sequence under the action of the pipe connector 6, and enter the heat dissipation cavity from the top of the first heat dissipation hole 5 to dissipate the heat on the top of the heat insulation block 2. By setting the pipe connector 6 on the more stable base 1, the structure of the heat insulation block 2 is simplified, and a reliable and easy-to-assemble air circuit connection can be achieved by connecting the heat insulation block 2 and the base 1.

[0051] As one specific implementation method, refer to Figure 2 and Figure 3 As shown, a heat dissipation groove 7 is provided on the side of the heat insulation block 2 facing the heating element 3. The heat dissipation groove 7 occupies most of the area of ​​the top surface of the heat insulation block 2, leaving only four narrow sides. The support members 4 are all located in the heat dissipation groove 7 and one end is connected to the bottom of the heat dissipation groove 7, while the other end is in contact with the heating element 3. The internal space of the heat dissipation groove 7 forms a heat dissipation cavity. The first heat dissipation hole 5 is set at the bottom of the heat dissipation groove 7 and extends towards the bottom of the heat insulation block 2 until it penetrates the bottom of the heat insulation block 2.

[0052] In addition, exhaust holes 8 are provided on the side wall of the heat insulation block 2. There are two sets of exhaust holes 8, and each set of exhaust holes 8 has three holes. The two sets of exhaust holes 8 are respectively located on both sides of the heat dissipation groove 7 and are connected to the heat dissipation cavity inside the heat dissipation groove 7. At this time, the exhaust holes 8 can discharge the heat dissipation airflow in the heat dissipation cavity to the heat insulation block 2.

[0053] Specifically, at least four first heat dissipation holes 5 are provided. In this embodiment, four first heat dissipation holes 5 are provided, but it is not limited to only four. Three, five, etc., can also be provided. The number of first heat dissipation holes 5 is not uniquely limited in this embodiment. The four first heat dissipation holes 5 are arranged in a rectangular pattern on the top surface of the heat insulation block 2 and are evenly distributed. At this time, the four first heat dissipation holes 5 can ensure that the heat dissipation airflow is evenly injected into the heat dissipation cavity from the multiple first heat dissipation holes 5, thereby avoiding local overheating and ensuring the uniformity of heat dissipation. Furthermore, the opening of the first heat dissipation hole 5 facing the heating element 3 is set to be open, which effectively reduces the resistance of the heat dissipation airflow entering the heat dissipation cavity, promotes the diffusion of the heat dissipation airflow around the first heat dissipation hole 5, optimizes the path of the heat dissipation airflow, and is conducive to uniform heat dissipation.

[0054] As one specific implementation method, refer to Figure 1As shown, the support member 4 includes a first column 41, a second column 42, and a third column 43. Multiple first columns 41 are arranged in a rectangular pattern on the side of the heat insulation block 2 facing the heating element 3. Specifically, four first columns 41 are arranged in a rectangular pattern at the bottom of the heat dissipation groove 7, located at the four corners of the rectangle and surrounding the first heat dissipation hole 5. The second column 42 is located at the center of the side of the heat insulation block 2 facing the heating element 3, thus allowing the second column 42 to be positioned among the multiple first columns 41. Similarly, multiple third columns 43 are also provided. In this embodiment, there are four sets of third columns 43, with two columns in each set. A set of third columns 43 is provided between each pair of adjacent first columns 41, and gaps are left between the third columns 43 and between the third columns 43 and the first columns 41. One end of the first column 41, the second column 42 and the third column 43 are connected to the heat insulation block 2, and the other end extends towards the heating element 3 until the first column 41, the second column 42 and the third column 43 are flush with the opening of the heat dissipation groove 7, so that the first column 41, the second column 42 and the third column 43 can contact the heating element 3.

[0055] The support member 4, by employing a rectangular arrangement of the first column 41, the third column 43, and the second column 42, can stably support the heating element 3, providing stable load-bearing capacity to the heating element 3. At the same time, it can utilize the gaps between the first column 41, the second column 42, and the third column 43 to guide the heat dissipation airflow to flow in all directions, making the heat dissipation airflow flow more evenly at the bottom of the heating element 3, eliminating heat dissipation dead corners, and improving the overall heat dissipation uniformity.

[0056] In addition, the heating element 3 is detachably connected to the first post 41 and the second post 42. Specifically, bolts are inserted sequentially into the heating element 3 and the first post 41 or the second post 42, and threadedly connected to the first post 41 or the second post 42, thereby achieving detachability, which greatly facilitates the replacement and maintenance of the heating element 3. At the same time, the heating element 3 is connected to the rectangular arrangement of the first post 41 and the second post 42, which improves the stability of the installation of the heating element 3.

[0057] To verify the uniformity of the surface temperature of the heating element 3 after the support element 4 was installed, 11 sample points were taken on the surface of the heating element 3 for measurement by controlling the inflow velocity to 94.4 m / s and the height of the support element 4 to 2 mm. The changes in the surface uniformity of the heating element 3 under different calculation times were analyzed. Figure 5 As shown, from 0s to 5s, the temperature of the surface of heating element 3 gradually decreases. Compared with the existing heating element 3, the temperature of heating element 3 decreases further and the uniformity is higher.

[0058] In this embodiment, the height of the support member 4 is set between 0.8mm and 2mm. To verify the effect of the height of the support member 4 on the surface temperature of the heating element, reference is made. Figure 6 The figure shows the temperature at 11 measurement points on the surface of the heating element 3 at different calculation times, with a flow velocity of 94.4 m / s and a height of 1 mm for the support component 4. (Refer to...) Figure 7 As shown, the temperature of 11 measurement points on the surface of the heating element 3 is as follows: the flow velocity is 94.4 m / s and the height of the bearing 4 is 0.8 mm.

[0059] By observing the temperature change of the heating element 3 surface from 0s to 5s at support heights of 0.8mm, 1mm, and 2mm, a temperature variation curve with support height 4 is obtained. (Refer to...) Figure 8 As shown, it can be seen that as the height of the support member 4 gradually decreases, its heat dissipation is better. Therefore, the height of the support member 4 is preferably 0.8mm.

[0060] As one specific implementation method, refer to Figure 1 As shown, the heat insulation block 2 has a hollow portion 14 and a protrusion 15 on the side facing the base 1. A gap is left between the hollow portion 14 and the base 1, and the protrusion 15 is attached to the side of the base 1 facing the heat insulation block 2. By providing the protrusion 15 and the hollow portion 14 on the side of the heat insulation block 2 facing the base 1, the heat insulation block 2 and the base 1 only have partial contact at the protrusion 15, while a gap is formed between the hollow portion 14 and the base 1. The contact area between the heat insulation block 2 and the base 1 is greatly reduced, which significantly reduces the heat conduction efficiency from the heat insulation block 2 to the base 1 through the contact surface, improves the heat insulation performance of the heat insulation block 2, effectively reduces heat loss, and protects the base 1 and downstream components.

[0061] The protrusion 15 includes a first component 151 and a second component 152, both of which are integrally formed with the heat insulation block 2. The first component 151 is located at the center of the side of the heat insulation block 2 facing the base 1 and is X-shaped. The second component 152 is located on the periphery of the side of the heat insulation block 2 facing the base 1. The hollow portion 14 is located between the first component 151 and the second component 152. The protrusion 15 further defines the central first component 151 and the peripheral second component 152, so that the central first component 151 provides the main load-bearing capacity, and the peripheral second component 152 provides the edge load-bearing capacity. The first component 151 and the second component 152 together provide the load-bearing capacity for the heat insulation block 2, while the hollow portion 14 located between the first component 151 and the second component 152 minimizes the contact area between the heat insulation block 2 and the base 1, ensuring the stability of the heat insulation block 2 while minimizing the contact area, thus achieving a balance between structural strength and heat insulation effect.

[0062] Furthermore, the second component 152 has four supports located at the four corners of the side of the heat insulation block 2 facing the base 1. This symmetrical distribution ensures that when the heat insulation block 2 is installed on the base 1, the support points are evenly distributed at the four most stable corners. This provides stable support while minimizing the contact area with the base 1, further optimizing the heat insulation effect. Simultaneously, the perforated portion 14 extends into the second component 152 until it penetrates the side wall of the heat insulation block 2. This perforated portion 14 allows some external airflow to pass through, thus more effectively removing locally accumulated heat and further improving the overall heat insulation and heat dissipation performance.

[0063] As another implementation method, refer to Figure 1 As shown, the heat insulation block 2 has through holes 11, and multiple through holes 11 are provided. The multiple through holes 11 are provided one-to-one with multiple first pillars 41 and second pillars 42. The through holes 11 penetrate the top and bottom of the heat insulation block 2, and the first pillars 41 and second pillars 42 are respectively fixed in the corresponding through holes 11. The bolts on the first pillars 41 and second pillars 42 all extend into the through holes 11. Furthermore, the multiple through holes 11 are provided on the first component 151 on the protrusion 15. By providing through holes 11, the actual contact area between the protrusion 15 itself and the base 1 can be directly reduced, thereby further improving the heat insulation performance. At the same time, it can also provide space for the bolts, allowing the bolts to extend to the bottom of the first pillar 41 or the second pillar 42.

[0064] As one specific implementation method, refer to Figure 1As shown, in order to connect the base 1 and the heat insulation block 2, a first connecting part 12 is integrally formed on the side wall of the base 1 facing the heat insulation block 2, and a second connecting part 13 corresponding to the first connecting part 12 is integrally formed on the side wall of the heat insulation block 2 facing the base 1. There are two of each of the first connecting parts 12 and the second connecting parts 13. The two first connecting parts 12 are symmetrically arranged about the base 1, and the two second connecting parts 13 are symmetrically arranged about the heat insulation block 2. When the base 1 and the heat insulation block 2 are installed, the two first connecting parts 12 and the two second connecting parts 13 are arranged one-to-one, and the corresponding first connecting parts 12 and second connecting parts 13 are detachably connected by bolts. The detachable connection facilitates the installation, disassembly and replacement of the heat insulation block 2, and avoids the connection on the bottom surface of the heat insulation block 2 or the top surface of the base 1. Thus, the connection point is set on the side wall, rather than on the main heat conduction path, which is conducive to maintaining good heat insulation performance.

[0065] As another implementation, the hot press head also includes a guide plate 9. Two guide plates 9 are provided and are correspondingly arranged at two sets of exhaust holes 8. The guide plates 9 are detachably connected to the first connecting part 12. The guide plates 9 are provided with guide holes 17. The guide holes 17 are located on the side wall of the heat insulation block 2 facing the base 1. The heat dissipation airflow discharged from the exhaust holes 8 passes through the guide plates 9 and flows out through the guide holes 17, so that the well-dissipated heat dissipation airflow can be directed to be discharged from the guide holes 17, so that the heat dissipation airflow is away from the working area and does not reach the workpiece along the exhaust holes 8, thus affecting the processing of the workpiece.

[0066] Specifically, the guide plate 9 includes a first plate 91, a second plate 92 and a third plate 93. The first plate 91 is horizontally arranged, flush with the top surface of the heat insulation block 2 and located on the side wall of the heat insulation block 2, so that it is located above the end of the exhaust hole 8 facing away from the heat dissipation cavity. When the heat dissipation airflow is discharged from the heat dissipation cavity along the exhaust hole and moves upward, the first plate 91 can block the heat dissipation airflow from moving towards the heating element 3.

[0067] One end of the second plate 92 is connected to the first plate 91, and the other end extends toward the base 1. The second plate 92 is set at an angle. The second plate 92 moves away from the side connected to the first plate 91 and away from the heat insulation block 2. At this time, the heat dissipation airflow reaching the second plate 92 can move downward along the inclined surface of the second plate 92.

[0068] The third plate 93 is located on the side of the second plate 92 facing away from the first plate 91, and the third plate 93 is vertically arranged. One end of the third plate 93 is connected to the second plate 92, and the other end extends towards the base 1. The guide hole 17 is opened on the third plate 93, and one end of the guide hole 17 faces the direction of the heat insulation block 2. When the heat dissipation airflow moving downward along the second plate 92 reaches the third plate 93, the heat dissipation airflow can be discharged from the guide hole 17, away from the heat pressure head, and the heat dissipation airflow discharged from the exhaust hole 8 can form a smooth guide path along the first plate 91, the second plate 92 and the third plate 93. With the help of gravity and structural guidance, the heat dissipation airflow can be efficiently and smoothly discharged in a directional manner without affecting the processing of the workpiece.

[0069] Example 2

[0070] Reference Figures 1-4 As shown, this embodiment provides a hot pressing device, including the hot pressing head of embodiment 1. By setting only a support member 4 between the heating element 3 and the heat insulation block 2, a gap is left between the heating element 3 and the heat insulation block 2 to form a heat dissipation cavity. The heat dissipation airflow is introduced into the first heat dissipation hole 5 through the pipe joint 6 and diffuses from the first heat dissipation hole 5 towards the heat dissipation cavity. Therefore, heat dissipation can be achieved directly through the contact of the heat dissipation airflow without the need for contact through the channel. This greatly reduces the direct contact area between the heating element 3 and the heat insulation block 2, reduces heat conduction, and increases the heating rate of the heating element 3. At the same time, after the heat dissipation airflow enters the heat dissipation cavity through the first heat dissipation hole 5, it will evenly wash the back of the heating element 3. The heat dissipation airflow and the back of the heating element 3 are in uniform contact, avoiding the heat dissipation airflow being confined in the channel, which significantly improves the heat dissipation efficiency and uniformity.

[0071] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A hot press head, characterized in that, include: Base (1); A heat insulation block (2) is disposed on the base (1); A heating element (3) is disposed on the side of the heat insulation block (2) facing away from the heating element (3); A support member (4) is disposed between the heating element (3) and the heat insulation block (2) for supporting the heating element (3) on the heat insulation block (2), and the gap between the heating element (3) and the heat insulation block (2) forms a heat dissipation cavity; The first heat dissipation hole (5) is provided on the heat insulation block (2), and one end of it is connected to the heat dissipation cavity; Pipe joint (6) is provided on the heat insulation block (2) or the base (1) for sequentially delivering heat dissipation airflow to the first heat dissipation hole (5) and the heat dissipation cavity; The carrier (4) includes: The first column (41) is provided in multiple rectangular arrangement on the side of the heat insulation block (2) facing the heating element (3); The second column (42) is located at the center of the heat insulation block (2) on the side facing the heating element (3) and is located between a plurality of first columns (41), and the first heat dissipation hole (5) is located between the first column (41) and the second column (42); There are multiple third columns (43), and a third column (43) is provided between each two adjacent first columns (41).

2. The hot press head as described in claim 1, characterized in that, The heat insulation block (2) has a heat dissipation groove (7) on the side facing the heating element (3). The internal space of the heat dissipation groove (7) forms a heat dissipation cavity. The first heat dissipation hole (5) is set at the bottom of the heat dissipation groove (7). The support member (4) is set in the heat dissipation groove (7) and abuts against the heating element (3). The heat insulation block (2) has an exhaust hole (8) on its side wall. The exhaust hole (8) is connected to the heat dissipation groove (7) and is used to discharge the heat dissipation airflow in the heat dissipation cavity out of the heat insulation block (2).

3. The hot press head as described in claim 1, characterized in that, The heating element (3) is detachably connected to the first column (41) and the second column (42).

4. The hot press head as described in claim 1, characterized in that, At least four first heat dissipation holes (5) are provided, and multiple first heat dissipation holes (5) are arranged in a rectangular pattern on the heat insulation block (2).

5. The hot press head as described in claim 1, characterized in that, The first heat dissipation hole (5) is set to open on the side facing the heating element (3).

6. The hot press head as described in claim 2, characterized in that, It also includes a guide plate (9), which is disposed at the exhaust hole (8). The guide plate (9) has a guide hole (17) which is located on the side wall of the heat insulation block (2) facing the base (1). The heat dissipation airflow discharged from the exhaust hole (8) passes through the guide plate (9) and flows out through the guide hole (17).

7. The hot press head as described in claim 6, characterized in that, The guide plate (9) includes: The first plate (91) is located above the end of the exhaust hole (8) facing away from the heat dissipation cavity; The second plate (92) is connected to the first plate (91) on one side and extends towards the base (1) on the other side. The second plate (92) is inclined. The third plate (93) is disposed on the side of the second plate (92) facing away from the first plate (91), with one end connected to the second plate (92) and the other end extending toward the base (1). The guide hole (17) is opened on the third plate (93).

8. The hot press head as described in claim 1, characterized in that, The pipe connector (6) is disposed on the base (1), and the base (1) is provided with a second heat dissipation hole (10). The second heat dissipation hole (10) and the pipe connector (6) are connected. When the base (1) and the heat insulation block (2) are connected, the first heat dissipation hole (5) and the second heat dissipation hole (10) correspond to each other and are connected.

9. A hot pressing device, characterized in that, Includes the hot press head as described in any one of claims 1-8.

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