Press fitting mechanism and press fitting device

Abstract

The utility model discloses a press-fitting mechanism and a press-fitting device, the press-fitting mechanism has a first direction, and the press-fitting mechanism comprises a base, a driving part and a press-fitting assembly. The driving piece is arranged on the base; the press-fitting assembly comprises a mounting part and a press-fitting part, the mounting part is connected with the driving part, the driving part is used for driving the mounting part to move in the first direction, the press-fitting part is connected with the side, away from the base, of the mounting part in the first direction, and an avoiding groove is formed in the side, away from the mounting part, of the press-fitting part in the first direction; the receding groove is sunken in the direction close to the installation piece in the first direction. According to the press-fitting mechanism, the press-fitting piece and the clamping piece can abut against the top cover at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pressing technology, and in particular to a pressing mechanism and a pressing device. BACKGROUND

[0002] In the process of manufacturing a battery, a pressing member of a pressing mechanism is usually used to press a top cover into a battery shell. After the top cover is pressed into the shell by the pressing member, a clamping member is usually used to apply continuous pressure to the top cover to prevent the top cover from rebounding out of the shell. In a conventional pressing mechanism, the pressing member needs to be separated from the top cover before the clamping member can clamp the top cover to prevent interference between the pressing member and the clamping member. Thus, in the exchange gap where the pressing member and the clamping member alternately contact the top cover, the top cover may rebound, and even need to be re-pressed, thereby affecting the production efficiency of the battery. SUMMARY

[0003] Therefore, the present application aims to overcome the deficiencies in the prior art and provide a pressing mechanism that can allow the pressing member and the clamping member to simultaneously abut against the top cover.

[0004] The present application also provides a pressing device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] According to the pressing mechanism of the first aspect of the present application, the pressing mechanism has a first direction, and the pressing mechanism comprises a base, a driving member arranged on the base, and a pressing assembly comprising a mounting member and a pressing member. The mounting member is connected to the driving member, and the driving member is used to drive the mounting member to move in the first direction. The pressing member is connected to the side of the mounting member that is away from the base in the first direction. The pressing member is provided with a recessed groove on the side that is away from the mounting member in the first direction. The recessed groove is recessed in the direction of the mounting member in the first direction.

[0007] The pressing mechanism of the present application has the following advantages:

[0008] In the pressing mechanism, the driving member is used to drive the mounting member to move along the third direction so that the pressing member abuts against the top cover, thereby realizing the pressing of the top cover by the pressing assembly. During the pressing of the top cover, the side of the pressing member away from the mounting member is provided with the avoiding groove along the first direction, and the avoiding groove is recessed towards the mounting member along the first direction. Therefore, when the pressing of the top cover is completed, the clamping member can be avoided through the recessed part of the avoiding groove, so that the clamping member can extend into the recessed part of the avoiding groove and press on the top cover. At this time, the pressing member does not need to be separated from the top cover, thereby realizing the purpose that the pressing member and the clamping member simultaneously apply pressure to the top cover. In this way, the possibility of the rebound of the top cover after the pressing is completed can be reduced, the probability of the re-pressing of the top cover can be reduced, and the production efficiency of the battery can be improved.

[0009] According to the pressing mechanism of the first aspect of the present application, the pressing member includes a plurality of first pressing parts arranged at intervals along the second direction.

[0010] According to the pressing mechanism of the first aspect of the present application, the mounting member is provided with an air extraction cavity, and the first pressing part is provided with a first dust removal hole in communication with the air extraction cavity. The first dust removal hole penetrates the first pressing part along the first direction and is located in the avoiding groove.

[0011] According to the pressing mechanism of the first aspect of the present application, the pressing mechanism further has a third direction intersecting the first direction and the second direction. The first pressing part is provided with a plurality of avoiding grooves, and the plurality of avoiding grooves are arranged at intervals along the third direction.

[0012] According to the pressing mechanism of the first aspect of the present application, the first pressing part has a contact structure between two adjacent avoiding grooves along the third direction. The mounting member is provided with an air extraction cavity, and the first pressing part is provided with a second dust removal hole in communication with the air extraction cavity. The second dust removal hole penetrates the contact structure along the first direction.

[0013] According to the pressing mechanism of the first aspect of the present application, the pressing mechanism further has a third direction intersecting the first direction and the second direction. The pressing member further includes a plurality of second pressing parts arranged at intervals along the third direction. The second pressing part is connected with the first pressing part to enclose an avoiding space. The pressing assembly further includes a liquid injection hole protection member. The liquid injection hole protection member is arranged on the mounting member and located in the avoiding space.

[0014] According to the pressing mechanism of the first aspect of the present application, the liquid injection hole protection member has a protection cavity, which is located at one end of the liquid injection hole protection member away from the mounting member along the first direction, and the protection cavity is recessed towards the mounting member along the first direction.

[0015] According to the pressing mechanism of the first aspect of the present application, the liquid injection hole protection member is provided with a first exhaust hole, the mounting member is provided with a second exhaust hole, one end of the first exhaust hole is communicated with the protection cavity, and the other end of the first exhaust hole is communicated with the second exhaust hole.

[0016] According to the pressing mechanism of the first aspect of the present application, the pressing member is provided with a mounting hole, the liquid injection hole protection member is arranged in the mounting hole and connected with the hole wall of the mounting hole.

[0017] According to the pressing device of the second aspect of the present application, the pressing device comprises the pressing mechanism as described above.

[0018] The pressing device of the present application has the following advantages:

[0019] In the pressing device of the present application, since the pressing mechanism described above can make the pressing member and the clamping member abut against the top cover at the same time, the pressing device of the present application can have a better pressing yield and a higher pressing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 The structure schematic diagram of the pressing mechanism in the present application is shown;

[0022] Figure 2 The exploded structure schematic diagram of the pressing assembly and the battery in the present application is shown;

[0023] Figure 3 The perspective structure schematic diagram of the pressing assembly in the present application is shown;

[0024] Figure 4 The cross-sectional structure schematic diagram of the pressing assembly and the battery in the present application is shown;

[0025] Figure 5 The enlarged structure schematic diagram of A in the present application is shown; Figure 4

[0026] ​Figure 6 The structural schematic diagram of the base, the limiting piece and the guide piece in the application is shown.

[0027] Main element symbol explanation:

[0028] 100 - base; 110 - guide hole;

[0029] 200 - driving piece;

[0030] 300 - press-fitting assembly; 310 - mounting piece; 311 - air extraction cavity; 312 - second exhaust hole; 320 - press-fitting piece; 321 - avoiding slot; 322 - first press-fitting part; 3221 - first dust removal hole; 3222 - contact structure; 3223 - second dust removal hole; 323 - second press-fitting part; 324 - avoiding space; 325 - mounting hole; 330 - liquid hole protection piece; 331 - protection cavity; 332 - first exhaust hole;

[0031] 400 - limiting piece;

[0032] 500 - guide piece;

[0033] 20 - battery; 21 - battery shell; 22 - top cover;

[0034] x - first direction; y - second direction; z - third direction. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated elements. Thus, a feature defined with "first" or "second" can include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly specified and limited otherwise.

[0038] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] Referring to Figure 1 , Figure 2 and Figure 3 , the pressing mechanism involved in the embodiment of the present application has a first direction x, and the pressing mechanism comprises a base 100, a driving member 200 and a pressing assembly 300.

[0041] Specifically, the driving member 200 is arranged on the base 100; the pressing assembly 300 comprises a mounting member 310 and a pressing member 320, the mounting member 310 is connected with the driving member 200, the driving member 200 is used to drive the mounting member 310 to move along the first direction x, the pressing member 320 is connected with the mounting member 310 on the side away from the base 100 along the first direction x, the pressing member 320 is provided with a avoiding groove 321 on the side away from the mounting member 310 along the first direction x, the avoiding groove 321 is recessed in the direction of approaching the mounting member 310 along the first direction x.

[0042] It should be noted that the first direction x is the direction indicated by x in Figure 1 and Figure 3 .

[0043] In the pressing mechanism of the application, the mounting member 310 can be driven to move along the third direction z by the driving member 200, so that the pressing member 320 abuts against the top cover 22, thereby realizing the pressing of the top cover 22 by the pressing assembly 300. During the pressing of the top cover 22, since the pressing member 320 is provided with the avoiding groove 321 on the side away from the mounting member 310 along the first direction x, and the avoiding groove 321 is recessed towards the mounting member 310 along the first direction x, when the pressing of the top cover 22 is completed, the clamping member can be avoided by the recessed part of the avoiding groove 321, so that the clamping member can extend into the recessed part of the avoiding groove 321 and press on the top cover 22. At this time, the pressing member 320 does not need to be separated from the top cover 22, thereby realizing the purpose that the pressing member 320 and the clamping member simultaneously apply pressure to the top cover 22. In this way, the possibility of the rebound of the top cover 22 after the pressing is completed can be reduced, the probability of the re-pressing of the top cover 22 can be reduced, and the production efficiency of the battery 20 can be improved.

[0044] Referring to Figure 3 As shown in the figure, the pressing mechanism also has a second direction y intersecting the first direction x, and the pressing member 320 includes a plurality of first pressing portions 322 spaced apart along the second direction y. The first pressing portion 322 is provided with the avoiding groove 321.

[0045] It should be noted that the second direction y is Figure 1 and Figure 3 the direction indicated by y in the above.

[0046] Specifically, in the embodiment, the first pressing portion 322 has two, and the two first pressing portions 322 are spaced apart along the second direction y, that is, the two first pressing portions 322 press on two long edges of the top cover 22 respectively, so that the long edges of the top cover 22 can be pressed into the battery shell 21.

[0047] In the embodiment, since the pressing member 320 includes a plurality of first pressing portions 322 spaced apart along the second direction y, in this way, the long edges of the top cover 22 can be pressed by the plurality of first pressing portions 322, so that the long edges of the top cover 22 can be pressed into the battery shell 21. Since the first pressing portion 322 is provided with the avoiding groove 321, when the pressing of the top cover 22 is completed, the clamping member can be avoided by the recessed part of the avoiding groove 321, so that the clamping member can extend into the recessed part of the avoiding groove 321 and press on the top cover 22, thereby enabling the first pressing portion 322 and the clamping member to simultaneously apply pressure to the top cover 22. In this way, the possibility of the rebound of the top cover 22 after the pressing is completed can be reduced.

[0048] Continuing to refer to Figure 3As shown, the mounting piece 310 is provided with an air extraction cavity 311, and the first pressing part 322 is provided with a first dust removal hole 3221 which is in communication with the air extraction cavity 311, and the first dust removal hole 3221 penetrates the first pressing part 322 along the first direction x and is located in the avoiding groove 321.

[0049] Specifically, in the embodiment, one end of the air extraction cavity 311 away from the first dust removal hole 3221 is connected with the negative pressure vacuum air equipment.

[0050] In the embodiment, during the pressing of the top cover 22, the top cover 22 and the battery shell 21 will rub each other due to mutual extrusion, so that metal debris will be generated during the pressing of the top cover 22. Since the avoiding groove 321 is recessed along the first direction x towards the mounting piece 310, a dust removal space can be reserved between the first pressing part 322 and the top cover 22 through the avoiding groove 321. Since the first dust removal hole 3221 penetrates the first pressing part 322 along the first direction x and is located in the avoiding groove 321, and the first pressing part 322 is provided with the first dust removal hole 3221 which is in communication with the air extraction cavity 311, the dust in the dust removal space such as metal debris can be vacuumed by the air extraction cavity 311 and the first dust removal hole 3221, so as to clean the dust such as metal debris generated during the pressing of the top cover 22, avoid the dust such as metal debris entering the inside of the shell, avoid the dust such as metal debris piercing the diaphragm of the cell, and reduce the influence on the production quality of the battery 20 product.

[0051] Continuing to refer to Figure 3 As shown, the pressing mechanism also has a third direction z which intersects with the first direction x and the second direction y, and the first pressing part 322 is provided with a plurality of avoiding grooves 321 which are arranged at intervals along the third direction z.

[0052] It should be noted that the third direction z is Figure 1 and Figure 3 the direction indicated by z in the

[0053] In the embodiment, since the first pressing part 322 is provided with a plurality of avoiding grooves 321 which are arranged at intervals along the third direction z, when the pressing of the top cover 22 is completed, the plurality of clamping pieces can extend into the recessed part of the avoiding groove 321 and press on the top cover 22, so as to press the top cover 22 at multiple places along the length direction through the plurality of clamping pieces, thereby further improving the stability of the pressing structure between the top cover 22 and the battery shell 21 and reducing the possibility of rebound after the pressing of the top cover 22 is completed.

[0054] Continuing to refer to Figure 3As shown, the first pressing part 322 has a contact structure 3222 located between two adjacent avoiding grooves 321 along the third direction z, the mounting member 310 is provided with a suction cavity 311, and the first pressing part 322 is provided with a second dust removal hole 3223 in communication with the suction cavity 311, and the second dust removal hole 3223 penetrates the contact structure 3222 along the first direction x.

[0055] In this embodiment, the long side of the top cover 22 can be extruded by the contact structure 3222 of the first pressing part 322, so that the long side of the top cover 22 can be pressed into the battery shell 21. Since the first pressing part 322 is provided with the second dust removal hole 3223, and the second dust removal hole 3223 penetrates the contact structure 3222 along the first direction x, and the mounting member 310 is provided with the suction cavity 311 in communication with the second dust removal hole 3223, the surface of the top cover 22 in contact with the contact structure 3222 can be adsorbed by the suction cavity 311 and the second dust removal hole 3223, so that the top cover 22 has a tendency to bulge outward away from the battery shell 21, and the pressure on the top cover 22 is released, preventing the top cover 22 from deforming or even breaking due to the pressure of the contact structure 3222 and the extrusion of the battery shell 21. This improves the pressing yield of the top cover 22 and improves the production yield of the battery 20.

[0056] Referring to Figure 2 and Figure 3 As shown, the pressing member 320 further comprises a plurality of second pressing parts 323 spaced apart along the third direction z, and the second pressing part 323 is connected with the first pressing part 322 to enclose the avoiding space 324, and the pressing assembly 300 further comprises a liquid injection hole protection member 330 provided on the mounting member 310, and the liquid injection hole protection member 330 is arranged in the avoiding space 324.

[0057] Specifically, in this embodiment, the second pressing part 323 has two second pressing parts 323 spaced apart along the third direction z, and each second pressing part 323 extends along the second direction y, so that the two short sides of the top cover 22 can be pressed by the two second pressing parts 323, so that the two short sides of the top cover 22 can be pressed into the battery shell 21. In this way, the entire top cover 22 can be pressed by the two first pressing parts 322 and the two second pressing parts 323, so that the top cover 22 can be pressed into the battery shell 21. Further, each second pressing part 323 is connected with a first pressing part 322 at both ends of the second pressing part 323, so as to enclose the avoiding space 324 between the two first pressing parts 322 and the two second pressing parts 323.

[0058] In this embodiment, since the plurality of second press-fitting portions 323 are spaced apart along the third direction z, the short sides of the top cover 22 can be pressed by the plurality of second press-fitting portions 323 so that the short sides of the top cover 22 can be pressed into the battery case 21. In this way, the entire top cover 22 can be pressed by the plurality of first press-fitting portions 322 and the plurality of second press-fitting portions 323 so that all parts of the top cover 22 can be pressed into the battery case 21. There is an avoidance space 324, and the liquid injection hole protection part 330 is arranged in the avoidance space 324. Therefore, when the pressing part 320 presses the top cover 22, the liquid injection hole protection part 330 can be covered on the liquid injection hole of the top cover 22, and the avoidance space 324 can be used to avoid interference between the liquid injection hole protection part 330 and the top cover 22, so that the liquid injection hole can be protected by the liquid injection hole protection part 330, and metal debris and other dust impurities generated during the pressing process can be prevented from entering the battery shell 21 through the liquid injection hole.

[0059] Reference Figure 4 as well as Figure 5 As shown, the liquid injection hole protection member 330 has a protection cavity 331, which is located at one end of the liquid injection hole protection member 330 away from the mounting member 310 along the first direction x, and the protection cavity 331 is recessed along the first direction x toward the mounting member 310.

[0060] In this embodiment, since the protective cavity 331 is located at one end of the liquid injection hole protection part 330 away from the mounting part 310 along the first direction x, and the protective cavity 331 is recessed along the first direction x toward the mounting part 310, the liquid injection hole on the top cover 22 can be accommodated in the protective cavity 331, so that the liquid injection hole on the top cover 22 is protected by the protective cavity 331, thereby preventing metal debris and other dust and impurities generated during the press-fitting process from entering the battery case 21 through the liquid injection hole.

[0061] Reference Figure 5 As shown, the liquid injection hole protection member 330 is provided with a first exhaust hole 332, and the mounting member 310 is provided with a second exhaust hole 312. One end of the first exhaust hole 332 is connected to the protection cavity 331, and the other end of the first exhaust hole 332 is connected to the second exhaust hole 312.

[0062] In the present embodiment, during the press-fitting of the top cover 22, as the top cover 22 is pressed into the battery case 21, the air pressure in the battery case 21 will increase due to the extrusion of the top cover 22, at this time, the top cover 22 can be pushed out or displaced by the high air pressure in the battery case 21. Since one end of the first exhaust hole 332 of the liquid injection hole protection member 330 is in communication with the protection cavity 331, and the other end of the first exhaust hole 332 is in communication with the second exhaust hole 312 of the mounting member 310, the gas in the top cover 22 can be sequentially discharged from the battery case 21 through the liquid injection hole, the protection cavity 331, the first exhaust hole 332, and the second exhaust hole 312, thereby achieving pressure relief inside the battery case 21, avoiding the top cover 22 being pressed into the battery case 21 from being pushed out by the air pressure in the battery case 21, and improving the connection stability between the top cover 22 and the battery case 21.

[0063] With reference to Figure 5 As shown in the figure, the press-fitting member 320 is provided with a mounting hole 325, and the liquid injection hole protection member 330 is arranged in the mounting hole 325 and connected with the hole wall of the mounting hole 325.

[0064] Specifically, in the present embodiment, the outer surface of the liquid injection hole protection member 330 has external threads, the mounting hole 325 has internal threads, and the liquid injection hole protection member 330 is connected with the hole wall of the mounting hole 325 by screwing. In other embodiments, the liquid injection hole protection member 330 and the hole wall of the mounting hole 325 can also be connected by interference fit.

[0065] In the present embodiment, the liquid injection hole protection member 330 can be connected to the press-fitting member 320 through the mounting hole 325 to achieve the connection between the liquid injection hole protection member 330 and the press-fitting member 320, and at the same time, it is convenient to disassemble and maintain the liquid injection hole protection member 330. When the liquid injection hole protection member 330 needs to be replaced, the entire press-fitting member 320 does not need to be replaced.

[0066] With reference to Figure 1 As shown in the figure, the press-fitting assembly 300 and the driving member 200 are both multiple, the multiple press-fitting assemblies 300 are arranged at intervals, and each driving member 200 is connected with the mounting member 310 of one press-fitting assembly 300 to simultaneously press-fit multiple batteries 20 to be press-fitted through the multiple press-fitting assemblies 300, thereby improving the production efficiency of the battery 20 press-fitting.

[0067] With reference to Figure 6As shown, the press-fitting mechanism further comprises a limiting piece 400 and a guide piece 500. The limiting piece 400 is arranged on an end of the base 100 away from the press-fitting assembly 300 along the first direction x. The base 100 is provided with a guide hole 110, and the guide piece 500 is arranged in the guide hole 110 along the first direction x. In the first direction x, one end of the guide piece 500 is connected with the mounting piece 310, and the other end of the guide piece 500 is arranged in a spaced manner away from the end of the limiting piece 400 away from the base 100 along the first direction x. When the mounting piece 310 is driven by the driving piece 200 to move along the first direction x and approach the top cover 22, the guide piece 500 slides in the guide hole 110 relative to the base 100 to abut against the end of the limiting piece 400 away from the base 100 along the first direction x. In this way, the displacement of the press-fitting assembly 300 along the first direction x is limited by the limiting piece 400 and the guide piece 500, so that the press-fitting assembly 300 is prevented from moving along the first direction x at a large amplitude when the driving piece 200 is out of control due to a fault, thereby avoiding damage to the battery 20 to be press-fitted, or damage to other structures of the press-fitting device, or personal injury to the operator.

[0068] The press-fitting device according to the embodiments of the present application comprises the press-fitting mechanism described above.

[0069] In the press-fitting device according to the embodiments of the present application, the press-fitting mechanism described above can make the press-fitting piece 320 and the clamping piece abut against the top cover 22 at the same time, so that the press-fitting device according to the embodiments of the present application has a better press-fitting yield and a higher press-fitting efficiency.

[0070] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present application and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0071] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A press-fitting mechanism characterized by comprising: The press-fitting mechanism has a first direction (x), and the press-fitting mechanism comprises: a base (100); a driving member (200) arranged on the base (100); a press-fitting assembly (300) comprising a mounting member (310) and a press-fitting member (320), the mounting member (310) is connected with the driving member (200), the driving member (200) is used for driving the mounting member (310) to move along the first direction (x), the press-fitting member (320) is connected with the mounting member (310) on a side away from the base (100) along the first direction (x), the press-fitting member (320) is provided with a relief groove (321) on a side away from the mounting member (310) along the first direction (x), and the relief groove (321) is recessed in a direction close to the mounting member (310) along the first direction (x).

2. The press mechanism of claim 1, wherein, The press-fitting mechanism also has a second direction (y) intersecting the first direction (x), and the press-fitting member (320) comprises a plurality of first press-fitting portions (322) arranged at intervals along the second direction (y), and the first press-fitting portions (322) are provided with the relief grooves (321).

3. The press mechanism of claim 2, wherein, The mounting member (310) is provided with an air extraction cavity (311), and the first press-fitting portions (322) are provided with first dust removal holes (3221) in communication with the air extraction cavity (311), the first dust removal holes (3221) penetrate the first press-fitting portions (322) along the first direction (x) and are located in the relief grooves (321).

4. The press mechanism of claim 2, wherein The press-fitting mechanism also has a third direction (z) intersecting the first direction (x) and the second direction (y), and the first press-fitting portions (322) are provided with a plurality of the relief grooves (321), and the plurality of the relief grooves (321) are arranged at intervals along the third direction (z).

5. The press mechanism of claim 4, wherein, The first press-fitting portions (322) have a contact structure (3222) located between two adjacent relief grooves (321) along the third direction (z), the mounting member (310) is provided with an air extraction cavity (311), and the first press-fitting portions (322) are provided with second dust removal holes (3223) in communication with the air extraction cavity (311), and the second dust removal holes (3223) penetrate the contact structure (3222) along the first direction (x).

6. The press mechanism of claim 2, wherein, The press-fitting mechanism also has a third direction (z) intersecting the first direction (x) and the second direction (y), and the press-fitting member (320) further comprises a plurality of second press-fitting portions (323) arranged at intervals along the third direction (z), the second press-fitting portions (323) are connected with the first press-fitting portions (322) to enclose a relief space (324), and the press-fitting assembly (300) further comprises a liquid injection hole protection member (330), the liquid injection hole protection member (330) is arranged on the mounting member (310), and the liquid injection hole protection member (330) is arranged in the relief space (324).

7. The press mechanism of claim 6, wherein, The liquid injection hole protection piece (330) has a protection cavity (331) located at an end of the liquid injection hole protection piece (330) away from the mounting piece (310) along the first direction (x), and the protection cavity (331) is recessed towards the mounting piece (310) along the first direction (x).

8. The press mechanism of claim 7, wherein, The liquid injection hole protection piece (330) is provided with a first exhaust hole (332), and the mounting piece (310) is provided with a second exhaust hole (312), one end of the first exhaust hole (332) communicates with the protection cavity (331), and the other end of the first exhaust hole (332) communicates with the second exhaust hole (312).

9. The press mechanism of claim 6, wherein, The pressing piece (320) is provided with a mounting hole (325), the liquid injection hole protection piece (330) is arranged in the mounting hole (325) and connected with the hole wall of the mounting hole (325).

10. A press fitting device characterized by comprising: The application further discloses a pressing mechanism. The pressing mechanism according to any one of claims 1-9.

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