Thermoelectric refrigeration assembly cutting tool and cutting method

Abstract

The invention provides a thermoelectric refrigeration assembly cutting tool and method, the cutting tool comprises a positioning plate and a tightening ring, the positioning plate is provided with a plurality of positioning grooves used for placing thermoelectric refrigeration assemblies and a plurality of positioning holes used for being matched with a film sticking machine, and the depth of the positioning grooves is smaller than the thickness of the thermoelectric refrigeration assemblies; an inner ring of the tightening ring is matched with an outer ring of the positioning plate, and is provided with an alignment hole matched with a film sticking machine, and the tightening ring is used for tensioning the adhesive film during film sticking and is bonded with the thermoelectric refrigeration assembly into a whole through the adhesive film; the alignment hole can be matched with a precise cutting machine and is used for positioning the temperature measurement cutting during cutting; by the adoption of the positioning plate and the tightening ring, batch cutting of the whole-plate-welded thermoelectric refrigeration assembly is achieved, it is ensured that the relative positions of the thermoelectric refrigeration assembly and the tightening ring are fixed, accurate positioning is achieved conveniently during cutting, the operation difficulty and workload are reduced, and the production efficiency of the thermoelectric refrigeration assembly is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of semiconductor device cutting, and in particular relates to a thermoelectric cooling component cutting tool and a cutting method. Background Art

[0002] Thermoelectric cooling components are devices that use the thermoelectric effect of semiconductors to generate cooling. They use PN junctions made of semiconductor materials to form thermocouple pairs. When direct current is passed through, the Peltier effect is generated, absorbing heat at one end of the two sides of the device and releasing heat at the other end. Due to its long service life, high reliability, and environmental protection, it has been widely used in many fields. At present, electronic devices are gradually developing towards miniaturization, and the space available for electronic device packaging is getting smaller and smaller, resulting in the trend of miniaturization and multi-quantization of thermoelectric cooling components; the existing production method of thermoelectric cooling components is to weld a single cold surface ceramic substrate-thermoelectric element-single hot surface ceramic substrate to form a sandwich structure. Although the production method of single welding meets the needs of miniaturization, as the volume of a single thermoelectric cooling component decreases, not only the welding difficulty increases, but also brings about problems such as cumbersome operation, increased workload, and reduced production efficiency, and the single production method is difficult to guarantee the consistency of product performance. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a thermoelectric cooling component cutting tool and cutting method, which solves the problems of heavy workload, cumbersome operation and low production efficiency caused by the traditional single-piece production method of thermoelectric cooling components, and significantly improves the production efficiency of thermoelectric cooling components.

[0004] The technical solution adopted by the present invention is: a thermoelectric cooling component cutting tool, including a positioning plate and a tension ring, the positioning plate is provided with a plurality of positioning grooves for placing the thermoelectric cooling component and positioning holes for cooperating with a film laminating machine, the depth of the positioning grooves is less than the thickness of the thermoelectric cooling component; the inner ring of the tension ring matches the outer ring of the positioning plate, and is provided with alignment holes cooperating with the film laminating machine, which are used to tension the adhesive film during film laminating and bond the thermoelectric cooling component to a whole through the adhesive film; the alignment holes can cooperate with a precision cutting machine and are used to position the thermoelectric cooling component during cutting.

[0005] Furthermore, the depth of the positioning groove is smaller than the thickness of the thermoelectric cooling component by 0.1 mm to 0.3 mm.

[0006] Furthermore, an oxide layer is provided on the surface of the positioning plate.

[0007] Furthermore, a plurality of the positioning grooves are arranged in an array, and a spacing between adjacent positioning grooves is not less than 10 mm.

[0008] Furthermore, the surface of the thermoelectric cooling component is provided with crisscross cutting paths, and the cutting paths are provided with positioning marks for visual identification of the precision cutting machine.

[0009] Furthermore, the adhesive film has a viscosity greater than 3000 N / 20 mm, which can be reduced to less than 300 N / 20 mm after debonding.

[0010] A method for cutting a thermoelectric cooling component, using the thermoelectric cooling component cutting tool as described above, comprises the following steps:

[0011] Placing a thermoelectric cooling component in the positioning groove;

[0012] Fix the positioning plate and the tension ring on the film laminating machine respectively to perform film laminating operation to form an adhesive film;

[0013] Put the bonded thermoelectric cooling assembly and the tension ring into a precision cutting machine for cutting;

[0014] The cut thermoelectric refrigeration component and the tension ring are placed in a debonding machine for debonding, and the thermoelectric refrigeration component is removed.

[0015] Furthermore, the method of fixing the positioning plate and the tension ring on the film laminating machine respectively includes:

[0016] Fix the tension ring at a set position of the film laminating machine, so that the first positioning pin of the film laminating machine passes through the alignment hole of the tension ring;

[0017] The positioning plate is fixed to the inner side of the tension ring, and the second positioning pin of the film laminating machine passes through the positioning hole of the positioning plate.

[0018] Furthermore, the step of placing the bonded thermoelectric cooling assembly and the tension ring into a precision cutting machine comprises:

[0019] Put the tension ring into the vacuum suction cup of the precision cutting machine, so that the third positioning pin on the vacuum suction cup passes through the alignment hole of the tension ring;

[0020] The vacuum generator is turned on to adsorb and fix the tension ring and the temperature difference electric cooling component.

[0021] Furthermore, the cutting operation includes:

[0022] Setting cutting parameters according to the specifications of the thermoelectric refrigeration component;

[0023] The visual recognition module automatically recognizes the thermoelectric refrigeration component and the positioning mark on the thermoelectric refrigeration component, and automatically matches the cutting template;

[0024] The dicing knife moves to a position corresponding to the positioning mark and cuts along the cutting path;

[0025] Complete the cutting of all the thermoelectric refrigeration components one by one.

[0026] The advantages and positive effects of the present invention are as follows: by adopting a positioning plate and a tension ring, the cutting of the thermoelectric cooling component welded on the whole plate is realized, the problems of heavy workload, complicated operation and low production efficiency caused by single welding are solved, the automatic batch cutting of the thermoelectric cooling components is realized, and the consistency of the performance of the single thermoelectric cooling component is ensured; the thermoelectric cooling component and the tension ring are bonded together with an adhesive film for cutting operation, which ensures that the relative position of the thermoelectric cooling component and the tension ring is fixed, and it is convenient to realize precise positioning during cutting. The workers only need to perform the operations of film sticking and loading and unloading, which reduces the operation difficulty and workload, has a high degree of automation, and significantly improves the production efficiency of the thermoelectric cooling component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the positioning plate structure in a specific embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the installation of the positioning plate and the tension ring in a specific embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a thermoelectric refrigeration component in a specific embodiment of the present invention;

[0030] Figure 4 It is a flow chart of a cutting method in a specific embodiment of the present invention.

[0031] In the figure:

[0032] 1. Positioning plate 11, positioning groove 12, positioning hole

[0033] 2. Tension ring 21, alignment hole 3, temperature difference electric cooling component

[0034] 31. Cutting road 32. Positioning mark 33. Single thermoelectric cooling component DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2As shown, the present invention provides a thermoelectric cooling component cutting tool, which is used to cut a whole-plate thermoelectric cooling component 3, including a positioning plate 1 and a tension ring 2. The positioning plate 1 is provided with a plurality of positioning grooves 11 for placing the thermoelectric cooling component 3 and positioning holes 12 for cooperating with the film laminating machine. The positioning groove 11 is set as a blind hole with a set depth. The depth of the positioning groove 11 is less than the thickness of the thermoelectric cooling component 3, so that the thermoelectric cooling component 3 protrudes out of the positioning groove 11 when placed in the positioning groove 11; the inner ring of the tension ring 2 matches the outer ring of the positioning plate 1, the tension ring 2 is a supporting structure of the film laminating machine, and the tension ring 2 is provided with a positioning hole 21 cooperating with the film laminating machine; when laminating, the positioning plate 1 is fixed to the set position of the film laminating machine through the positioning hole 12, and the tension ring 2 is fixed to another set position of the film laminating machine through the positioning hole 21, wherein the positioning plate 1 is located on the inner side of the tension ring 2; the tension ring 2 is used to tension the adhesive film when laminating, and is bonded to the thermoelectric cooling component 3 through the adhesive film; at the same time, the positioning hole 21 on the tension ring 2 can cooperate with the precision cutting machine to position the thermoelectric cooling component 3 during cutting.

[0037] The thermoelectric cooling component 3 in the present application is a sandwich structure composed of a whole plate cold surface ceramic substrate - a thermoelectric element - a whole plate hot surface ceramic substrate welded together. Through the above technical scheme, the thermoelectric cooling component 3 welded on the whole plate is bonded to the tension ring 2 at a set relative position, and the cutting operation is performed at the set relative position, which makes it easy for the precision cutting machine to position the thermoelectric cooling component 3 according to the cutting template, and there is no need to re-position it every time cutting, thereby improving the cutting operation efficiency.

[0038] Preferably, in order to enable the positioning plate 1 to be accurately fixed at the set position of the film laminating machine, the positioning plate 1 is provided with at least two positioning holes 12, and the two positioning holes 12 are arranged at intervals; similarly, the tension ring is provided with at least two alignment holes 21.

[0039] In the present application, the depth of the positioning groove 11 is 0.1mm to 0.3mm less than the thickness of the thermoelectric cooling component 3, so as to ensure that when the thermoelectric cooling component 3 is placed in the positioning groove 11, one end of the thermoelectric cooling component 3 is exposed outside the positioning groove 11 and effectively adheres to the adhesive film; when laminating, the positioning groove 11 of the positioning plate 1 is placed in the film laminating machine with the opening facing upward, and the upper surface of the tension ring 2 is flush with the upper surface of the thermoelectric cooling component 3, so as to ensure that the adhesive film is tightly adhered to the thermoelectric cooling component 3 without contacting the positioning plate 1, thereby fixing the relative position of the thermoelectric cooling component 3 and the tension ring 2, and not easily displaced or changed.

[0040] The positioning plate 1 in the present application is made of aluminum alloy material, and its size can be set to 6 inches, 8 inches or 12 inches according to the size of the suction cup of the precision cutting machine; to ensure that the thermoelectric cooling component 3 will not move or shake in the positioning groove 11 during the bonding process, the size of the positioning groove 11 is preferably set to be 0.01mm~0.03mm longer on the basis of the length and width of the thermoelectric cooling component 3, so as to effectively limit the thermoelectric cooling component 3 and facilitate the placement of the thermoelectric cooling component 3 in the positioning groove 11.

[0041] Preferably, an oxide layer is provided on the surface of the positioning plate 1 to prevent the positioning plate 1 from rubbing against the thermoelectric cooling component 3 and causing scratches on the thermoelectric cooling component 3 , while improving the corrosion resistance of the positioning plate 1 .

[0042] The plurality of positioning grooves 11 in the present application are arranged in an array according to a certain rule, so that the thermoelectric cooling components 3 are arranged in rows and columns in the same direction after being bonded to the adhesive film, which is convenient for positioning and moving the dicing knife during the cutting operation; preferably, in order to avoid the influence of the adjacent thermoelectric cooling components 3 when the dicing knife moves and turns during the cutting process, the spacing between adjacent positioning grooves 11 is not less than 10 mm.

[0043] like Figure 3 As shown, the thermoelectric cooling component 3 in the present application is a sandwich structure composed of a whole plate cold surface ceramic substrate - a thermoelectric element - a whole plate hot surface ceramic substrate welded together, and a criss-cross cutting path 31 is provided on its surface. The cutting path 31 is provided with a positioning mark 32 for visual recognition of a precision cutting machine, so that the dicing knife moves along the cutting path 31 to perform a cutting operation, and the thermoelectric cooling component 3 is cut into a single thermoelectric cooling component 33 of a set size.

[0044] The viscosity of the adhesive film in the present application is greater than 3000N / 20mm, which can ensure that the thermoelectric cooling component 3 is stably fixed on the adhesive film during the cutting process and will not move with the movement of the dicing knife; at the same time, in order to ensure that a single thermoelectric cooling component 33 can be smoothly removed from the adhesive film after cutting, the viscosity of the adhesive film needs to be reduced. Preferably, the viscosity of the adhesive film can be reduced to below 300N / 20mm after debonding.

[0045] A method for cutting a thermoelectric refrigeration component, such as Figure 4 As shown, the cutting tool using the thermoelectric refrigeration assembly 3 as described above includes the following steps:

[0046] S1, placing the thermoelectric cooling component 3 in the positioning groove 11;

[0047] In the present application, the thermoelectric cooling component 3 is a sandwich structure composed of a whole plate of cold surface ceramic substrate, a thermoelectric element, and a whole plate of hot surface ceramic substrate. Since one end of the cold surface ceramic substrate is connected to the client product, the requirement for precision is relatively higher. Therefore, the positioning mark 32 is set on the surface of the cold surface ceramic substrate, and the surface faces the dicing knife during cutting; therefore, when placing the thermoelectric cooling component 3, the cold surface ceramic substrate faces the bottom of the positioning groove 11, so that the hot surface ceramic substrate is exposed in the positioning groove 11 for bonding the adhesive film.

[0048] S2, fixing the positioning plate 1 and the tension ring 2 on the film laminating machine respectively to perform film laminating operation to form an adhesive film;

[0049] The film laminating machine in the present application has a first positioning pin and a second positioning pin. When operating, the tension ring 2 is first fixed to the set position of the film laminating machine, and the first positioning pin of the film laminating machine passes through the alignment hole 21 of the tension ring 2; then the positioning plate 1 is fixed to the inner side of the tension ring 2, and the second positioning pin of the film laminating machine passes through the positioning hole 12 of the positioning plate 1. Through this setting, the relative position of the thermoelectric cooling component 3 and the tension ring 2 is fixed every time the film is laminating, and no adjustment or repositioning is required.

[0050] When sticking the film, the adhesive film is bonded to the tension ring 2, so that the tension ring 2 tightens the adhesive film and covers the entire thermoelectric cooling component 3 inside it, forming a bonded body between the thermoelectric cooling component 3 and the tension ring 2; preferably, the area of ​​the adhesive film is larger than the area enclosed by the tension ring 2.

[0051] After the film is pasted, the bonded body of the thermoelectric cooling assembly 3 and the tension ring 2 is removed from the film pasting machine and enters the next step of cutting operation; and the positioning plate 1 is removed separately for turnover use.

[0052] S3, putting the bonded thermoelectric cooling assembly 3 and the tension ring 2 into a precision cutting machine for cutting;

[0053] The precision cutting machine in the present application is provided with a vacuum suction cup, and a third positioning pin matching the alignment hole 21 of the tension ring 2 is provided on the vacuum suction cup. The tension ring 2 is placed in the vacuum suction cup of the precision cutting machine, so that the third positioning pin on the vacuum suction cup passes through the alignment hole 21 of the tension ring 2. When placed, the adhesive film faces the vacuum suction cup, and the positioning mark 32 of the thermoelectric cooling component 3 faces the direction of the dicing knife, and the adhesive film evenly covers the surface of the vacuum suction cup;

[0054] Then, the vacuum generator is turned on to adsorb the adhesive film, so that the fixed tension ring 2 and the temperature difference electric cooling component 3 are firmly fixed on the vacuum suction cup, and the cutting operation is started.

[0055] The precision cutting machine in the present application is automatically controlled by a control system; the control system completes the set actions according to the preset cutting template and automatically completes the cutting operation of the thermoelectric cooling component 3; the precision cutting machine is also provided with a visual recognition system, which can accurately identify the position of the thermoelectric cooling component 3 and the positioning mark 32 on the thermoelectric cooling component 3, and then complete the cutting according to the set program, thereby ensuring the performance consistency of the single thermoelectric cooling component 33 formed after cutting.

[0056] During the cutting operation, it is necessary to set the cutting parameters according to the specifications of the thermoelectric cooling component 3, including the spindle speed, cutting speed, and cutting step, wherein the cutting step is set according to the size of the thermoelectric cooling component 3 and the width of the cutting path 31; the cutting speed should match the spindle speed. Cutting too fast will cause edge cracking and uneven cut surface during the cutting process, affecting the client's use. Cutting too slowly will lead to low production efficiency and affect the output. A spindle speed that is too fast will cause cracking during the cutting process, and a spindle speed that is too slow will not be able to match a faster cutting speed. In this application, the spindle speed is set to 10000-40000rpm and the feed speed is 1-20mm / s.

[0057] Because the position of the thermoelectric cooling component 3 is fixed relative to the tension ring 2, it is also fixed relative to the vacuum suction cup, so that the position of the visual recognition module matches the position of the thermoelectric cooling component 3, and automatic recognition and positioning can be performed, and the thermoelectric cooling component 3 and the positioning mark 32 on the thermoelectric cooling component 3 can be accurately identified, and then automatically matched to the corresponding cutting template, and the information is fed back to the control system; then the control system controls the dicing knife to move to the position corresponding to the positioning mark 32 and cut along the cutting path 31, cutting each thermoelectric cooling component 3 into a number of single thermoelectric cooling components 33 of a set size; when the cutting of a thermoelectric cooling component 3 is completed, the control system controls the dicing knife to automatically move to the next operating position, and completes the cutting of all the thermoelectric cooling components 3 one by one.

[0058] S4, putting the cut thermoelectric cooling component 3 and the tension ring 2 into a debonding machine for debonding, removing the adhesive film and taking out the thermoelectric cooling component 3.

[0059] After the debonding is completed, the single thermoelectric cooling component 33 automatically falls off from the adhesive film and can be removed and put into the next production process for use.

[0060] Example:

[0061] A method for cutting a thermoelectric refrigeration component 3, such as Figure 4As shown, it is used to cut a whole plate of thermoelectric cooling components with a length and width of 8.6mm×10.8mm and a thickness of 1mm, and each whole plate of thermoelectric cooling components 3 is cut into 20 single thermoelectric cooling components 33 with a length and width of 2.0mm×2.0mm; the positioning plate 1 in this embodiment is a circular plate structure with a radius of 140mm and a thickness of 10mm, and the positioning plate 1 is provided with 16 positioning grooves 11 arranged in an array, and the length and width of the positioning grooves 11 are 8.6mm×10.8mm, and the depth is 0.8mm. The spacing between each row of positioning grooves 11 is 10mm, and the spacing between two adjacent rows of positioning grooves 11 is 10mm; a positioning hole 12 is provided at each of the opposite ends of the positioning plate 1, and the positioning hole 12 is located on the relatively outer side of the positioning groove 11. The cutting method comprises the following steps:

[0062] S1, placing the thermoelectric cooling component 3 in the positioning groove 11;

[0063] The side of the thermoelectric cooling component 3 provided with the positioning mark 32 faces the bottom end of the positioning groove 11 , and one thermoelectric cooling component 3 is placed in each positioning groove 11 .

[0064] S2, fixing the positioning plate 1 and the tension ring 2 on the film laminating machine respectively to perform film laminating operation to form an adhesive film;

[0065] The tension ring 2 in this embodiment is a supporting device of the film laminating machine, and its inner ring is a circle with a radius of 194 mm, and the outer edge is engaged with the limiting mechanism of the film laminating machine; the film laminating machine in this embodiment has a first positioning pin and a second positioning pin. During operation, the tension ring 2 is first fixed to the set position of the film laminating machine, and the first positioning pin of the film laminating machine passes through the alignment hole 21 of the tension ring 2; then the positioning plate 1 is fixed to the inner side of the tension ring 2, and the second positioning pin of the film laminating machine passes through the positioning hole 12 of the positioning plate 1. At this time, the surface of the temperature difference electric cooling component 3 on the positioning plate 1 is flush with the surface of the tension ring 2.

[0066] The film laminating machine in this embodiment is made of aluminum alloy. When laminating, the adhesive film is bonded to the tension ring 2 so that the tension ring 2 tightens the adhesive film. A scraper is used to gently push the contact surface between the adhesive film and the component to ensure that there are no bubbles visible to the naked eye and that the bonding is firm. The adhesive film used is a UV film with a viscosity of 5000N / 20mm-8000N / 20mm. After being irradiated with ultraviolet rays, the adhesive layer on the surface of the UV film is denatured and the viscosity can be reduced to 100N / 20mm.

[0067] After the film is pasted, the bonded body of the thermoelectric cooling assembly 3 and the tension ring 2 is removed from the film pasting machine and enters the next step of cutting operation; the positioning plate 1 is removed separately for turnover use.

[0068] S3, putting the bonded thermoelectric cooling assembly 3 and the tension ring 2 into a precision cutting machine for cutting;

[0069] The precision cutting machine in this embodiment is provided with a vacuum suction cup, and a third positioning pin matching the alignment hole 21 of the tension ring 2 is provided on the vacuum suction cup. The tension ring 2 is placed in the vacuum suction cup of the precision cutting machine, so that the third positioning pin on the vacuum suction cup passes through the alignment hole 21 of the tension ring 2. When placed, the adhesive film faces the vacuum suction cup, and the positioning mark 32 of the thermoelectric cooling component 3 faces the direction of the dicing knife, and the adhesive film evenly covers the surface of the vacuum suction cup;

[0070] Then, the vacuum generator is turned on to adsorb the adhesive film, so that the fixed tension ring 2 and the temperature difference electric cooling component 3 are firmly fixed on the vacuum suction cup;

[0071] Set the spindle speed to 40000rpm, the feed speed to 10mm / s, and the cutting step to 2.2mm.

[0072] The visual recognition module automatically identifies and locates the thermoelectric cooling component 3 and the positioning mark 32 on the thermoelectric cooling component 3, and then automatically matches the corresponding cutting template, and performs the cutting operation according to the set program. When the cutting of a thermoelectric cooling component 3 is completed, the dicing knife automatically moves to the next operation position, and completes the cutting of all thermoelectric cooling components 3 one by one.

[0073] After the cutting is completed, the thermoelectric cooling component 3 is cut from the whole plate into single thermoelectric cooling components 33 of a set size, and the single thermoelectric cooling component 33 is still bonded to the UV film at this time.

[0074] S4, putting the cut thermoelectric cooling component 3 and the tension ring 2 into a debonding machine for debonding, removing the adhesive film, and then taking out the single thermoelectric cooling component 33.

[0075] The debonding time is set to 20 seconds. After the debonding is completed, the single temperature difference electric cooling component 33 automatically falls off from the adhesive film and can enter the next production process for use.

[0076] The advantages and positive effects of the present invention are:

[0077] By adopting positioning plates and tension rings, it is possible to cut the thermoelectric cooling components welded on the entire plate, solving the problems of heavy workload, cumbersome operation and low production efficiency caused by single welding, and realizing automated batch cutting of thermoelectric cooling components, ensuring the consistency of performance of single thermoelectric cooling components; the thermoelectric cooling components and the tension ring are bonded together with an adhesive film for cutting, ensuring that the relative positions of the thermoelectric cooling components and the tension ring are fixed, facilitating precise positioning during cutting, and workers only need to perform film application and material loading and unloading operations, which reduces the difficulty and workload of operation, has a high degree of automation, and significantly improves the production efficiency of thermoelectric cooling components.

[0078] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A thermoelectric refrigeration component cutting tool, characterized in that: It includes a positioning plate and a tension ring. The positioning plate is provided with a plurality of positioning grooves for placing the thermoelectric cooling component and positioning holes for cooperating with a film laminating machine. The depth of the positioning grooves is less than the thickness of the thermoelectric cooling component. The inner ring of the tension ring matches the outer ring of the positioning plate and is provided with alignment holes cooperating with the film laminating machine, which are used to tension the adhesive film during film laminating and bond the thermoelectric cooling component to the adhesive film through the adhesive film. The alignment holes can cooperate with a precision cutting machine to position the thermoelectric cooling component during cutting.

2. The thermoelectric cooling component cutting tool according to claim 1, characterized in that: The depth of the positioning groove is 0.1 mm to 0.3 mm less than the thickness of the thermoelectric cooling component.

3. The thermoelectric cooling component cutting tool according to claim 2, characterized in that: An oxide layer is provided on the surface of the positioning plate.

4. The thermoelectric cooling component cutting tool according to any one of claims 1 to 3, characterized in that: The plurality of positioning grooves are arranged in an array, and the spacing between adjacent positioning grooves is not less than 10 mm.

5. The thermoelectric cooling component cutting tool according to claim 4, characterized in that: The surface of the temperature difference electric cooling component is provided with crisscross cutting paths, and the cutting paths are provided with positioning marks for visual identification of the precision cutting machine.

6. The thermoelectric cooling component cutting tool according to claim 1, 2, 3 or 5, characterized in that: The adhesive film has a viscosity greater than 3000 N / 20 mm, which can be reduced to less than 300 N / 20 mm after debonding.

7. A method for cutting a thermoelectric refrigeration component, characterized in that: The thermoelectric refrigeration component cutting tool as claimed in any one of claims 1 to 6 comprises the following steps: Placing a thermoelectric cooling component in the positioning groove; Fix the positioning plate and the tension ring on the film laminating machine respectively to perform film laminating operation to form an adhesive film; Put the bonded thermoelectric cooling assembly and the tension ring into a precision cutting machine for cutting; The cut thermoelectric refrigeration component and the tension ring are placed in a debonding machine for debonding, and the thermoelectric refrigeration component is removed.

8. The method for cutting a thermoelectric cooling component according to claim 7, characterized in that: The method of fixing the positioning plate and the tension ring on the film laminating machine respectively comprises: Fix the tension ring at a set position of the film laminating machine, so that the first positioning pin of the film laminating machine passes through the alignment hole of the tension ring; The positioning plate is fixed to the inner side of the tension ring, and the second positioning pin of the film laminating machine passes through the positioning hole of the positioning plate.

9. The method for cutting a thermoelectric refrigeration component according to claim 7 or 8, characterized in that: The step of placing the bonded thermoelectric cooling assembly and the tension ring into a precision cutting machine comprises: Put the tension ring into the vacuum suction cup of the precision cutting machine, so that the third positioning pin on the vacuum suction cup passes through the alignment hole of the tension ring; The vacuum generator is turned on to adsorb and fix the tension ring and the temperature difference electric cooling component.

10. The method for cutting a thermoelectric refrigeration component according to claim 9, characterized in that: The cutting operation comprises: Setting cutting parameters according to the specifications of the thermoelectric refrigeration component; The visual recognition module automatically recognizes the thermoelectric refrigeration component and the positioning mark on the thermoelectric refrigeration component, and automatically matches the cutting template; The dicing knife moves to a position corresponding to the positioning mark and cuts along the cutting path; Complete the cutting of all the thermoelectric refrigeration components one by one.

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