Method for manufacturing an adhesive component

Abstract

The present invention provides a method for manufacturing an adhesive component, comprising: a step of applying an adhesive to a plurality of coating regions on the surface of a first component; a step of disposing a second component on the first component; and a step of pressing the second component toward the first component. In the pressing step, the load applied to the press changes in such a manner that it sequentially passes through a curve rising period and a sharp rising period. The curve rising period is a period in which the load rises in a curve as the compression amount of the adhesive increases, and the sharp rising period is a period in which the load rises in a broken line shape relative to the trajectory of the load in the curve rising period as the compression amount of the adhesive increases. In the pressing based on the press, the load is detected by a load sensor, the sharp rising period is detected based on the detection value of the load sensor, and the pressing is stopped during the sharp rising period.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a method for manufacturing bonded components. Background Art

[0002] In Japanese Patent Laid-Open No. 2019-119147, a technology for bonding two components using an adhesive is disclosed. In this technology, first, the adhesive is applied in a bead shape at multiple locations on the surface of the first component. Next, the second component is placed on the first component in such a manner that the adhesive is sandwiched between the first component and the second component. Then, a pressing process of pressing the second component toward the first component is performed. When the pressing process is carried out, the adhesive is compressed and expands laterally. The expanded adhesives are connected to each other, thereby coating the adhesive over a wide area. Thus, in this technology, after the adhesive is dispersedly applied to multiple locations, the adhesive is compressed and expanded to connect the adhesives to each other. According to this technology, a relatively low load can be used as the load for the pressing process, and the adhesive can be coated over a wide area. Therefore, the adhesive can be coated over a wide area without applying a high load to the first component and the second component. After that, by curing the adhesive, the first component and the second component are bonded.

[0003] In the technology of Japanese Patent Laid-Open No. 2019-119147, it is difficult to control the expansion range of the adhesive during the pressing process. Therefore, during the pressing process, the adhesives applied to multiple locations may not be connected to each other. When the adhesives are not connected to each other and there are gaps between the adhesives, the bonding strength will be reduced. Summary of the Invention

[0004] In this specification, the following technology is proposed: in the technology of performing a pressing process after applying the adhesive at multiple locations, the adhesives are reliably connected to each other during the pressing process.

[0005] The first manufacturing method of the bonding component disclosed in this specification includes a coating step, a component arranging step, and a pressing step. In the coating step, the adhesive is coated on a plurality of coating regions that linearly extend on the surface of the first component and are spaced apart in a direction intersecting the extending direction of the linear extension. In the component arranging step, the second component is arranged on the first component in such a manner that the adhesive is sandwiched between the first component and the second component. In the pressing step, the adhesive is compressed by pressing the second component toward the first component using a press. In the pressing step, the load applied to the press changes in such a way that it sequentially passes through a curved rising period and a sharp rising period. The curved rising period is a period in which the load rises in a curved shape as the compression amount of the adhesive increases, and the sharp rising period is a period in which the load rises in a stepped shape relative to the trajectory of the load during the curved rising period as the compression amount of the adhesive increases. In the pressing step, while detecting the load using a load sensor, pressing based on the press is performed, the sharp rising period is detected based on the detection value of the load sensor, and pressing based on the press is stopped during the sharp rising period.

[0006] In this manufacturing method, after coating the adhesive on a plurality of coating regions of the first component and arranging the second component in such a manner that the adhesive is sandwiched between the first component and the second component, the pressing step is carried out. In the pressing step, the adhesive is compressed by pressing the second component toward the first component using a press, causing the adhesive to expand laterally. During the period when the adhesives on the plurality of coating regions are not connected to each other, the load applied to the press rises in a curved shape as the compression amount of the adhesive increases. That is, the period when the adhesives are not connected to each other corresponds to the curved rising period. After that, when the adhesives are connected to each other due to the expansion of the adhesive, in the region where the adhesives are connected to each other, the adhesive is difficult to flow laterally. Therefore, the adhesive is difficult to be compressed, and the load applied to the press rises sharply. At this time, the load applied to the press rises in a stepped shape relative to the trajectory of the load during the curved rising period. That is, the period after the moment when the adhesives are connected to each other corresponds to the sharp rising period. In this manufacturing method, while detecting the load applied to the press using a load sensor, pressing based on the press is performed, the sharp rising period is detected based on the detection value of the load sensor, and pressing based on the press is stopped during the sharp rising period. Therefore, it is possible to stop pressing in a state where the adhesives are connected to each other. That is, according to this manufacturing method, the adhesives can be reliably connected to each other during the pressing step.

[0007] The second manufacturing method of the bonding component disclosed in this specification has a coating process, a component arrangement process, and a pressing process. In the coating process, the adhesive is coated on a plurality of coating regions that linearly extend on the surface of the first component and are spaced apart in a direction intersecting the extending direction of the linear extension. In the component arrangement process, the second component is arranged on the first component in such a manner that the adhesive is sandwiched between the first component and the second component. In the pressing process, the adhesive is compressed by pressing the second component toward the first component using a press. In the pressing process, the compression speed of the adhesive changes in such a way that it sequentially passes through a curve decreasing period and a sharp decreasing period. The curve decreasing period is a period in which the compression speed decreases in a curve as the compression amount of the adhesive increases. The sharp decreasing period is a period in which the compression speed decreases in a broken line shape with respect to the load trajectory in the curve decreasing period as the compression amount of the adhesive increases. In the pressing process, while detecting the compression speed using a compression speed sensor, pressing based on the press is performed, the sharp decreasing period is detected based on the detection value of the compression speed sensor, and pressing based on the press is stopped during the sharp decreasing period.

[0008] In this manufacturing method, after coating the adhesive on a plurality of coating regions of the first component and arranging the second component in such a manner that the adhesive is sandwiched between the first component and the second component, the pressing process is carried out. In the pressing process, the adhesive is compressed by pressing the second component toward the first component using a press, causing the adhesive to expand laterally. During the period when the adhesives on the plurality of coating regions are not connected to each other, the compression speed of the adhesive decreases in a curve as the compression amount of the adhesive increases. That is, the period when the adhesives are not connected to each other corresponds to the curve decreasing period. After that, when the adhesives are connected to each other due to the expansion of the adhesive, in the region where the adhesives are connected to each other, the adhesive is difficult to flow laterally. Therefore, the adhesive is difficult to be compressed, and the compression speed of the adhesive decreases sharply. At this time, the compression speed of the adhesive decreases in a broken line shape with respect to the curve decreasing period. That is, the period after the moment when the adhesives are connected to each other corresponds to the sharp decreasing period. In this manufacturing method, while detecting the compression speed of the adhesive using a compression speed sensor, pressing based on the press is performed, the sharp decreasing period is detected based on the detection value of the compression speed sensor, and pressing based on the press is stopped during the sharp decreasing period. Therefore, it is possible to stop pressing in a state where the adhesives are connected to each other. That is, according to this manufacturing method, it is possible to reliably connect the adhesives to each other in the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Hereinafter, the features, advantages, and technical and industrial significance of the exemplary embodiments of the present invention will be described with reference to the drawings, in which the same reference numerals denote the same components, and in the drawings:

[0010] Figure 1 is a top view showing the coating process.

[0011] Figure 2 is a cross-sectional view showing the coating process ( Figure 1 cross-sectional view taken along line II-II of

[0012] Figure 3 is a cross-sectional view showing the component placement process.

[0013] Figure 4 is a cross-sectional view showing the compression process.

[0014] Figure 5 is a cross-sectional view showing the compression process.

[0015] Figure 6 is a cross-sectional view showing the compression process.

[0016] Figure 7 is a top view showing the compression process.

[0017] Figure 8 is a graph showing the change in load during the compression process.

[0018] Figure 9 is a cross-sectional view showing the compression process.

[0019] Figure 10 is a cross-sectional view showing the compression process.

[0020] Figure 11 is a graph showing the change in compression speed during the compression process.

[0021] Figure 12 is a graph showing the relationship between the number of coating areas and the load required for compression. Detailed Description of the Invention

[0022] In an example of the above first manufacturing method, it is also possible that, in the pressurization step, when the detected value of the load sensor reaches a threshold value, the pressurization based on the press is stopped. Additionally, it is also possible that the threshold value is set to the value of the load during the sharp rise period.

[0023] According to this configuration, it is possible to stop the pressurization based on the press during the sharp rise period.

[0024] In an example of the above first manufacturing method, it is also possible that the adhesive has thixotropy.

[0025] According to this structure, since the viscosity of the adhesive increases when the adhesives are connected to each other, the load applied to the press rises more sharply during the sharp rise. Therefore, it is easy to detect the sharp rise period.

[0026] In an example of the first manufacturing method described above, the first component may be a battery pack and the second component may be a cooler.

[0027] In an example of the first manufacturing method described above, one of the first component and the second component may have a lower rigidity than the other of the first component and the second component.

[0028] According to this structure, when the component with higher rigidity is deformed, the component with lower rigidity can deform following the deformation. Therefore, it is easier to perform proper bonding.

[0029] In an example of the first manufacturing method described above, ceramic powder may be dispersed in the adhesive.

[0030] According to this structure, the thermal conductivity of the adhesive can be improved.

[0031] Hereinafter, as an example, a method for manufacturing a module of a battery pack and a cooler by bonding a cooler to a battery pack for an electric vehicle will be described.

[0032] Example 1

[0033] In the manufacturing method of Example 1, an adhesive coating step, a component arrangement step, and a pressing step are sequentially performed.

[0034] In the adhesive coating step, as Figure 1 shown, an adhesive 20 is coated on the surface of the housing 14 of the battery pack 12. Here, the adhesive 20 is coated in two coating regions 21a and 21b arranged at intervals in the x direction. In addition, here, in each of the coating regions 21a and 21b, the adhesive 20 is coated in a linear shape extending in the y direction (i.e., the direction orthogonal to the x direction). Here, as Figure 2 shown, the adhesive 20 is coated so that the cross-sectional shape of the adhesive 20 is substantially circular. The adhesive 20 is jelly-like and has thixotropy. It should be noted that in this specification, thixotropy refers to the property that the viscosity decreases under a state of applied shear stress and gradually increases under a stationary state. In addition, ceramic powder is dispersed in the adhesive 20. In addition, hereinafter, the adhesive 20 in the coating region 21a may be referred to as the adhesive 20a, and the adhesive 20 in the coating region 21b may be referred to as the adhesive 20b. In Figure 1 、 2In the state of , there is a gap 22 between the adhesive 20a and the adhesive 20b.

[0035] Next, in the component placement process, as Figure 3 shown, the cooler 16 is placed on the battery pack 12. Here, the cooler 16 is placed on the battery pack 12 in such a way that the adhesive 20 is sandwiched between the housing 14 of the battery pack 12 and the outer wall 18 of the cooler 16. It should be noted that the rigidity of the housing 14 of the battery pack 12 is higher than the rigidity of the outer wall 18 of the cooler 16.

[0036] Next, a pressing process is performed. In the pressing process, as Figure 4 shown by the arrow 100, the cooler 16 is pressed against the battery pack 12 by the press 30. Thereby, the adhesive 20 is compressed. That is, the thickness t1 of the adhesive 20 is reduced. As Figure 4 shown, the press 30 has a load sensor 40 and a control device 42. The load sensor 40 detects the load N1 applied to the press 30 (that is, the load applied to the adhesive 20). The control device 42 controls the press 30 according to the detection value of the load sensor 40. In the pressing process, the adhesive 20 is compressed while detecting the load N1 applied to the press 30 by the load sensor 40. When the adhesive 20 is compressed, as Figure 5 shown by the arrow 102, the adhesive 20 flows in the x direction. Thereby, the width W1 of the adhesives 20a and 20b expands. When the adhesive 20 is further compressed from the Figure 5 state, as Figure 6 , 7 shown, the widths W1 of the adhesives 20a and 20b further expand, and the adhesives 20a and 20b come into contact with each other. By connecting the adhesives 20a and 20b to each other in this way, the adhesive 20 is spread over the main range of the surface of the housing 14 (that is, the range having Figure 6 , Figure 7 the width W2).

[0037] In the pressing process, the press 30 compresses the adhesive 20 in such a way that the load N1 applied to the press 30 (that is, the load applied to the adhesive 20) can change. For example, the press 30 compresses the adhesive 20 at a constant power or a constant compression speed. Therefore, in the pressing process, the load N1 applied to the press 30 changes.

[0038] Figure 8 shows the change in the load N1 applied to the press 30 in the pressing process. As Figure 8 shown, the load N1 applied to the press 30 at the start of the pressing process is low. Immediately after the start of the pressing process, as Figure 4 , 5As shown, the adhesive 20a is separated from the adhesive 20b. In this state, as the widths W1 of the adhesives 20a and 20b expand, the load required to expand the width W1 increases. Therefore, as Figure 8 shown, at the beginning of the pressing process, as the thickness t1 of the adhesive 20 decreases, the load N1 applied to the press 30 gently rises in a curve. After that, as Figure 6 shown, when the adhesive 20a comes into contact with the adhesive 20b, the adhesives 20a and 20b cannot flow in the x direction at the contact position J1. Therefore, after that, the load required to expand the width W2 of the adhesive 20 sharply increases. As a result, as Figure 8 shown, the load N1 applied to the press 30 sharply increases from the bending point P1. In particular, in Example 1, the adhesive 20 has thixotropy. Therefore, when the adhesive 20 no longer flows in the x direction at the contact position J1, the viscosity of the adhesive 20 increases around the contact position J1. Therefore, the load N1 applied to the press 30 sharply increases extremely sharply from the bending point P1. Hereinafter, the period during which the load N1 gently rises in a curve is referred to as the curve rising period T1, and the period during which the load N1 sharply increases is referred to as the sharp rising period T2. During the sharp rising period T2, the load N1 rises at a rising rate higher than the rising rate of the load N1 during the curve rising period T1. During the sharp rising period T2, the load N1 rises in a stepped manner with respect to the trajectory of the load N1 during the curve rising period T1. That is, at the bending point P1, the load N1 changes in a non-differentiable manner. As described above, during the curve rising period T1, the adhesive 20a is separated from the adhesive 20b, and during the sharp rising period T2, the adhesive 20a is connected to the adhesive 20b.

[0039] During the pressing process, the control device 42 of the press 30 monitors the detection value of the load sensor 40. When the detection value of the load sensor 40 reaches Figure 8 the threshold value Nth shown, the control device 42 stops the pressing by the press 30. The threshold value Nth is set to the value of the load N1 applied to the press 30 during the sharp rising period T2. That is, the threshold value Nth is set to a value higher than the load N1 at the bending point P1. Therefore, at the moment when the control device 42 stops pressing (that is, the moment when the load N1 reaches the threshold value Nth), as Figure 6 , 7 shown, the adhesive 20a comes into contact with the adhesive 20b. By stopping the pressing after the moment of transferring from the curve rising period T1 to the sharp rising period T2 in this way, the adhesives 20a and 20b can be reliably brought into contact. After that, while maintaining the state of sandwiching the battery pack 12 and the cooler 16 by the press 30, the adhesive 20 is cured. By curing the adhesive 20, the battery pack 12 is bonded to the cooler 16. Thus, the module of the battery pack 12 and the cooler 16 is completed.

[0040] As described above, in the manufacturing method of Example 1, the value of the load N1 during the sharp rise period T2 is set as the threshold value Nth, and the pressurization is stopped when the detected value of the load sensor 40 reaches the threshold value Nth. Therefore, the adhesive 20a in the coating area 21a and the adhesive 20b in the coating area 21b can be reliably brought into contact. During and after the pressurization process, it is impossible to visually confirm whether the adhesives 20a and 20b are in contact. However, according to the above manufacturing method, the adhesives 20a and 20b can be reliably brought into contact without visually confirming the adhesives 20a and 20b. Therefore, according to this manufacturing method, it is possible to prevent a gap 22 from remaining between the adhesives 20a and 20b and to prevent insufficient bonding strength.

[0041] The cross-sectional area S1 of the adhesive 20 before compression is the sum of the cross-sectional areas of the adhesives 20a and 20b respectively. With respect to Figure 2 the diameter R of the cross-section of the adhesives 20a and 20b shown, the cross-sectional area S1 satisfies S1 = 2·π·(R / 2) 2 relationship. In addition, according to Figure 6 it is known that the cross-sectional area S2 of the adhesive 20 after compression satisfies the relationship S2 = W2·t1. The cross-sectional area S1 of the adhesive 20 before compression and the cross-sectional area S2 of the adhesive 20 after compression are approximately equal. Therefore, R = ((4·W2·t1) / (2·π)) 1 / 2 relationship holds. In addition, according to Figure 2 , 6 it is known that the distance L1 between the centers of the adhesives 20a and 20b before compression is approximately equal to half of the width W2 of the adhesive 20 after compression. That is, the relationship L1 = W2 / 2 holds. Therefore, when the design value of the width W2 is set as W2t and the design value of the thickness t1 is set as t1t, the distance L1 and the diameter R at the time of applying the adhesive 20 can be set in a manner that satisfies L1 = W2t / 2 and R = ((4·W2t·t1t) / (2·π)) 1 / 2 relationship. When the distance L1 and the diameter R are set in this way, at the moment when the load N1 rises sharply (i.e., the inflection point P1), the width W2 and the thickness t1 of the adhesive 20 are approximately the same as the designed width W2t and thickness t1t. Therefore, by stopping the pressurization by the press 30 immediately after transferring from the curve rise period T1 to the sharp rise period T2 as in Example 1, the width W2 and the thickness t1 of the adhesive 20 can be approximately the same as the designed width W2t and thickness t1t. In this way, according to the manufacturing method of Example 1, the width W2 and the thickness t1 of the adhesive 20 after compression can be accurately controlled.

[0042] In addition, in Embodiment 1, the rigidity of the housing 14 of the battery pack 12 is higher than the rigidity of the outer wall 18 of the cooler 16. Thereby, concentration of load and insufficient adhesive strength in the pressurizing process can be prevented. That is, the designed shape of the housing 14 is flat, but as Figure 9 shown, sometimes minute deformation (e.g., warping) occurs on the surface of the housing 14. In this case, since the rigidity of the outer wall 18 of the cooler 16 is lower than the rigidity of the housing 14, in the pressurizing process, as Figure 9 shown, the outer wall 18 of the cooler 16 elastically deforms following the shape of the housing 14. Therefore, even when there is deformation on the surface of the housing 14, local application of a high load to a part of the housing 14 and the outer wall 18 can be prevented. In addition, when the adhesive 20 is cured in this state, the adhesive strength of the adhesive 20 is stronger than the force for the outer wall 18 to return to its original shape. Therefore, the outer wall 18 is fixed to the housing 14 in a flexed state. In this way, the outer wall 18 is fixed in a shape following the deformation of the housing 14, so that the cooler 16 can be fixed to the housing 14 with high strength.

[0043] In addition, in Embodiment 1, since ceramic powder is dispersed inside the adhesive 20, the adhesive 20 has a high thermal conductivity. Therefore, the battery pack 12 can be efficiently cooled by the cooler 16.

[0044] Furthermore, in Embodiment 1, the value of the load N1 during the sharp rise period T2 is set as the threshold value Nth, and the sharp rise period T2 is detected by detecting whether the detected value of the load sensor 40 reaches the threshold value Nth. However, the sharp rise period T2 can also be detected by other methods. For example, the rising rate of the load N1 can be calculated based on the detected value of the load sensor 40, and the sharp rise period T2 can be detected based on the rising rate of the load N1.

[0045] Embodiment 2

[0046] Next, the manufacturing method of Embodiment 2 will be described. In the manufacturing method of Embodiment 2, the adhesive application process and the component arrangement process are also carried out in the same manner as in Embodiment 1. In Embodiment 2, the Figure 10 shown press 30a is used to carry out the pressurizing process. Figure 10 The press 30a has a compression speed sensor 44 instead of the load sensor 40. Figure 10 The other structure of the press 30a is the same as that of Figure 4is the same as the press 30. The compression speed sensor 44 detects the compression speed V1 of the adhesive 20 in the pressing process. The compression speed V1 is equal to the reduction speed dt1 / dt of the thickness t1 of the adhesive 20. Further, in the pressing process of Example 2, the press 30 compresses the adhesive 20 in such a manner that the compression speed V1 can vary. For example, the press 30 compresses the adhesive 20 with a constant power or a constant load. Therefore, in the pressing process, the compression speed V1 changes.

[0047] Figure 11 shows the change in the compression speed V1 in the pressing process of Example 2. As Figure 11 shown, the compression speed V1 at the start of the pressing process is high. As the thicknesses t1 of the adhesives 20a and 20b decrease and the width W1 expands, the load required to expand the width W1 increases. Therefore, immediately after the start of the pressing process, as the thickness t1 of the adhesive 20 decreases, the compression speed V1 gradually decreases in a curved shape. After that, when the adhesives 20a and 20b come into contact with each other, the adhesives 20a and 20b no longer flow in the x direction at the contact position. Therefore, after that, the load required to expand the width W2 of the adhesive 20 increases sharply. As a result, as Figure 11 shown, the compression speed V1 decreases sharply from the inflection point P2. In particular, since the adhesive 20 has thixotropy, the compression speed V1 decreases extremely sharply from the inflection point P2. Hereinafter, the period during which the compression speed V1 gradually decreases in a curved shape is referred to as the curved decrease period T3, and the period during which the compression speed V1 decreases sharply is referred to as the sharp decrease period T4. In the sharp decrease period T4, the compression speed V1 decreases in a stepped shape with respect to the trajectory of the compression speed V1 in the curved decrease period T3.

[0048] During the pressing process, the control device 42 of the press 30 monitors the detected value of the compression speed sensor 44. When the detected value of the compression speed sensor 44 decreases to the Figure 11 shown threshold value Vth, the control device 42 stops the pressing of the press 30. The threshold value Vth is set to the value of the compression speed V1 in the sharp decrease period T4. That is, the threshold value Vth is set to a value lower than the compression speed V1 at the inflection point P2. Therefore, at the moment when the control device 42 stops pressing (i.e., the moment when the compression speed V1 decreases to the threshold value Vth), the adhesives 20a and 20b come into contact with each other. By stopping the pressing after the moment of transferring from the curved decrease period T3 to the sharp decrease period T4 in this way, the adhesives 20a and 20b can be reliably brought into contact. After that, by curing the adhesive 20, the housing 14 is bonded to the cooler 16. Thus, the module of the battery pack 12 and the cooler 16 is completed.

[0049] As described above, in the manufacturing method of Example 2, the adhesive 20a and the adhesive 20b can also be reliably brought into contact. Further, in Example 2, the value of the compression speed V1 during the sharp decrease period T4 is set as a threshold value Vth, and the sharp decrease period T4 is detected by detecting whether the detected value of the compression speed sensor 44 has decreased to the threshold value Vth. However, the sharp decrease period T4 can also be detected by other methods. For example, the decrease rate dV1 / dt of the compression speed V1 can be calculated based on the detected value of the compression speed sensor 44, and the sharp decrease period T4 can be detected based on the decrease rate dV1 / dt.

[0050] It should be noted that in the above Examples 1 and 2, the adhesive 20 is applied to the two coating regions 21a and 21b. However, the adhesive 20 can also be applied dispersedly to three or more coating regions. Figure 12 The value of the load N1 required to expand the adhesive 20 using a press within the same range as in Examples 1 and 2 is shown. In Figure 12 the results of measuring the required load N1 while changing the number n of the coating regions are shown. As Figure 12 shown, the more the number n of the coating regions increases, the more the required load N1 can be reduced. Further, when the number of the coating regions is more than two, the coating interval L1 and the diameter R during the application of the adhesive 20 can be set in a manner that satisfies the relationship of L1 = W2t / n and R = ((4·W2t·t1t) / (n·π)), and the thickness t1 and the width W2 of the compressed adhesive 20 can be accurately controlled to the design values. 1 / 2 The above has described the embodiments in detail, but these are merely examples and do not limit the claims. The technology described in the claims includes technologies obtained by various deformations and changes to the specific examples illustrated above. The technical elements described in this specification or the drawings exhibit technical usefulness alone or through various combinations, and are not limited to the combinations recited in the claims at the time of application. In addition, the technology illustrated in this specification or the drawings can achieve multiple purposes simultaneously, and achieving one of the purposes itself also has technical usefulness.

[0051] ​

Claims

1. A method for manufacturing an adhesive component, characterized in that, comprising: a first step, in which an adhesive is applied to a plurality of coating regions that linearly extend on the surface of the first component and are spaced apart in a direction intersecting the extending direction of the linear extension; a second step, in which the second component is disposed on the first component in such a manner that the adhesive is sandwiched between the first component and the second component; and a third step, in which the adhesive is compressed by pressing the second component toward the first component by using a press, wherein, in the third step, the load applied to the press changes in such a manner as to sequentially pass through a curve rising period and a sharp rising period. The curve rising period is a period in which the load rises in a curve shape as the compression amount of the adhesive increases, and the sharp rising period is a period in which the load rises in a broken line shape with respect to the trajectory of the load in the curve rising period as the compression amount of the adhesive increases, and, wherein, in the third step, while detecting the load by using a load sensor, pressing is performed based on the press, the sharp rising period is detected based on the detection value of the load sensor, and pressing based on the press is stopped during the sharp rising period.

2. The method for manufacturing an adhesive component according to claim 1, characterized in that, in the third step, when the detection value of the load sensor reaches a threshold value, pressing based on the press is stopped, and the threshold value is set to the value of the load during the sharp rising period.

3. The method for manufacturing an adhesive component according to claim 1 or 2, characterized in that, the adhesive has thixotropy.

4. The method for manufacturing an adhesive component according to any one of claims 1 to 3, characterized in that, the first component is a battery pack, and the second component is a cooler.

5. The method for manufacturing an adhesive component according to any one of claims 1 to 4, characterized in that, the rigidity of one of the first component and the second component is lower than the rigidity of the other of the first component and the second component.

6. The method for manufacturing an adhesive component according to any one of claims 1 to 5, characterized in that, ceramic powder is dispersed in the adhesive.

7. A method for manufacturing an adhesive component, characterized in that, comprising: a first step, in which an adhesive is applied to a plurality of coating regions that linearly extend on the surface of the first component and are spaced apart in a direction intersecting the extending direction of the linear extension; a second step, in which the second component is disposed on the first component in such a manner that the adhesive is sandwiched between the first component and the second component; and a third step, in which the adhesive is compressed by pressing the second component toward the first component by using a press, Among them, in the third process, the compression speed of the adhesive changes in a manner that sequentially passes through a curve decrease period and a sharp decrease period. The curve decrease period is a period in which the compression speed decreases in a curve as the compression amount of the adhesive increases. The sharp decrease period is a period in which the compression speed decreases in a broken line shape with respect to the trajectory of the compression speed in the curve decrease period as the compression amount of the adhesive increases. And, Among them, in the third process, while detecting the compression speed using a compression speed sensor, pressurization based on the press is performed. The sharp decrease period is detected based on the detection value of the compression speed sensor, and pressurization based on the press is stopped during the sharp decrease period.

8. A method for manufacturing an adhesive component, characterized in that, comprising: a first process, in the first process, an adhesive is disposed between a first component and a second component in a plurality of regions that linearly extend and are spaced apart in a direction intersecting the extending direction of the linear extension; and a second process, in the second process, the adhesive is compressed by pressurizing the adhesive between the second component and the first component using a press, wherein, in the second process, the load applied to the press changes in a manner that sequentially passes through a first rising period and a second rising period. The first rising period is a period in which the load rises as the compression amount of the adhesive increases. The second rising period is a period in which the load rises in a broken line shape with respect to the trajectory of the load in the first rising period as the compression amount of the adhesive increases, and the rising speed of the load is faster than that in the first rising period. And, wherein, in the second process, while detecting the load using a load sensor, pressurization based on the press is performed. The second rising period is detected based on the detection value of the load sensor, and pressurization based on the press is stopped during the second rising period.

9. A method for manufacturing an adhesive component, characterized in that, comprising: a first process, in the first process, an adhesive is disposed between a first component and a second component in a plurality of regions that linearly extend and are spaced apart in a direction intersecting the extending direction of the linear extension; and a second process, in the second process, the adhesive is compressed by pressurizing the adhesive between the second component and the first component using a press, wherein, in the second process, the compression speed of the adhesive changes in a manner that sequentially passes through a first decrease period and a second decrease period. The first decrease period is a period in which the compression speed decreases as the compression amount of the adhesive increases. The second decrease period is a period in which the compression speed decreases in a broken line shape with respect to the trajectory of the compression speed in the first decrease period as the compression amount of the adhesive increases, and the decreasing speed of the compression speed of the adhesive is faster than that in the first decrease period. And, Among them, in the second process, while detecting the compression speed using a compression speed sensor, pressurization based on the press is performed, the second reduction period is detected based on the detection value of the compression speed sensor, and the pressurization based on the press is stopped during the second reduction period.

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