Patch device

Abstract

The utility model provides a chip mounting device, and relates to the technical field of battery manufacturing. The chip mounting device has a first direction and a second direction which are perpendicular to each other. The chip mounting device comprises a main body, a first positioning piece and a second positioning piece; one end of the main body along the first direction is provided with an opening; the body is further provided with a first positioning cavity extending in the second direction. The first positioning cavity is communicated with the opening; the first positioning piece is movably arranged at the end, provided with the opening, of the main body, and the first positioning piece can seal the opening; the second positioning piece is movably arranged at one end of the main body along the second direction; the second positioning piece is provided with a second positioning cavity extending in the second direction, and the second positioning cavity is communicated with the first positioning cavity. According to the surface mounting device provided by the invention, the relative position between the insulating sheet and the end plate can be quickly positioned, so that the accurate positioning during the bonding of the insulating sheet and the end plate is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a patch device. Background Art

[0002] During the assembly process of the battery module, an insulating sheet is usually provided between the end plate and the battery cell to provide isolation and insulation.

[0003] At present, most of the related technologies use large non-standard pasting mechanisms to paste the insulating sheet. The pasting mechanism usually uses a clamp or a suction cup to absorb the insulating sheet, and then pastes the insulating sheet to the end plate; however, the pasting mechanism has the disadvantages of high cost, long production cycle, slow production efficiency, poor operation convenience, and large space occupation; and when the clamp or suction cup pastes the insulating sheet on the end plate, it is difficult to ensure the accurate positioning between the insulating sheet and the end plate, which affects the insulation performance of the insulating sheet and causes safety hazards to the battery module. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the present application provides a patch device.

[0005] This application provides the following technical solutions:

[0006] A patch device, the patch device having a first direction and a second direction perpendicular to each other, the patch device comprising:

[0007] The main body has an opening at one end along the first direction; the main body also has a first positioning cavity extending along the second direction; the first positioning cavity is connected to the opening;

[0008] A first positioning member is movably disposed at one end of the main body where the opening is formed, and the first positioning member can close the opening;

[0009] The second positioning member is movably disposed at one end of the main body along the second direction; the second positioning member has a second positioning cavity extending along the second direction, and the second positioning cavity is communicated with the first positioning cavity.

[0010] In a possible implementation manner, the second positioning member is provided with a buckle, and the main body is provided with a buckle hole; the buckle is pluggably disposed in the buckle hole.

[0011] In a possible implementation, the patch device further includes a connection component, and the connection component includes:

[0012] A bearing, disposed on one end of the main body close to the first positioning member;

[0013] A rotating shaft, one end of which is inserted into the bearing and rotatably cooperates with the bearing; one end of the rotating shaft away from the bearing is inserted into the first positioning member and fixedly connected to the first positioning member.

[0014] In a possible implementation, the connection component further includes:

[0015] A first fixing member, one end of which is inserted into the bearing and fixedly connected to an end of the rotating shaft away from the first positioning member;

[0016] One end of the second fixing member is inserted into the first positioning member and is fixedly connected to the end of the rotating shaft away from the main body.

[0017] In a possible embodiment, a first magnetic component is provided on one end of the main body close to the first positioning component, and a second magnetic component with a polarity opposite to that of the first magnetic component is provided on the first positioning component; an alignment component is provided on one end of the main body close to the first positioning component, and an alignment hole is opened on the first positioning component, and the alignment component is pluggable in the alignment hole.

[0018] In a possible embodiment, the patch device also includes a third positioning member; the third positioning member can be movably arranged at one end of the main body away from the second positioning member along the second direction; the end of the main body away from the second positioning member along the second direction has a third positioning cavity, and the third positioning cavity is connected to the first positioning cavity.

[0019] In a possible implementation manner, a buckle is provided on the third positioning member, and a buckle hole is provided on the main body; the buckle is pluggably disposed in the buckle hole.

[0020] In a possible embodiment, a push portion, a first limiting portion and a second limiting portion are respectively provided on the first positioning member; the push portion protrudes from the outer surface of the first positioning member close to one end of the main body; the first limiting portion and the second limiting portion are respectively provided at both ends of the first positioning member along the second direction and protrude outward.

[0021] In a possible implementation manner, two abutting portions are provided on the first positioning member, and an avoidance groove is provided between the two abutting portions.

[0022] In a possible implementation, the main body further includes a limiting member, and the limiting member is provided on at least one inner wall of the first positioning cavity along a third direction; the third direction is perpendicular to the first direction and the second direction.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The patch device provided by the present application includes a main body, a first positioning member and a second positioning member; when the first positioning member closes the opening on the main body, it can push the end plate until one end of the end plate abuts against the inner wall of the first positioning cavity along the first direction, thereby limiting the position of the end plate in the first positioning cavity. After the position of the end plate is fixed, the second positioning member is arranged on one end of the main body along the second direction, and an insulating sheet is placed in the second positioning cavity of the second positioning member so that the insulating sheet contacts the end; the inner wall of the second positioning cavity can limit the position of the insulating sheet in the second positioning cavity, thereby allowing the insulating sheet to be accurately attached to the end plate.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a patch device according to an embodiment of the present application is shown;

[0028] Figure 2 An exploded schematic diagram of a patch device according to an embodiment of the present application is shown;

[0029] Figure 3 A schematic diagram of the three-dimensional structure of a main body of an embodiment of the present application is shown;

[0030] Figure 4 A schematic diagram of the three-dimensional structure of the main body of an embodiment of the present application from another angle is shown;

[0031] Figure 5 A schematic diagram of the three-dimensional structure of a first positioning member according to an embodiment of the present application is shown;

[0032] Figure 6 An exploded schematic diagram of a connection assembly according to an embodiment of the present application is shown;

[0033] Figure 7 A schematic diagram of the three-dimensional structure of a second positioning member according to an embodiment of the present application is shown;

[0034] Figure 8 A schematic diagram showing the operation of a patch device according to an embodiment of the present application is shown;

[0035] Fig. 9 Another working schematic diagram of the patch device according to an embodiment of the present application is shown.

[0036] Description of main component symbols:

[0037] 100-patch device; 110-main body; 111-first positioning cavity; 112-first magnetic member; 113-aligning member; 114-limiting member; 115-third positioning cavity; 116-first chamfer; 117-opening; 120-first positioning member; 121-pushing part; 122-first limiting part; 123-second limiting part; 124-second magnetic member; 125-aligning hole; 126-avoidance groove; 130-second positioning member; 131-second positioning cavity; 132-second chamfer; 140-third positioning member; 150-connecting assembly; 151-bearing; 152-rotating shaft; 153-first fixing member; 154-second fixing member; 160-first hinge; 170-second hinge;

[0038] 200-end plate;

[0039] 300-insulation sheet;

[0040] X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] See also Figure 1 In one embodiment of the present application, a patch device 100 is provided. The patch device 100 is used for positioning the end plate 200 of the battery module when being pasted with the insulating sheet 300, so that the insulating sheet 300 can be accurately pasted on the end plate 200.

[0047] See also Figure 1 , define the width direction of the patch device 100 as the first direction X, the height direction of the patch device 100 as the second direction Y, and the length direction of the patch device 100 as the third direction Z.

[0048] The first direction X is perpendicular to the second direction Y, and the third direction Z is perpendicular to the first direction X and the second direction Y. It is understood that the above definition is only for facilitating the understanding of the relative position relationship of each part in the patch device 100 and should not be construed as a limitation to the present application.

[0049] See also Figures 1 to 5 The patch device 100 mainly includes a main body 110 , a first positioning member 120 and a second positioning member 130 .

[0050] The main body 110 is provided with a first positioning cavity 111 extending along the second direction Y. An opening 117 is also provided at one end of the main body 110 along the first direction X. The first positioning cavity 111 is connected to the opening 117 . The end plate 200 can be placed in the first positioning cavity 111 through the opening 117 .

[0051] When the end plate 200 is placed in the first positioning cavity 111 , two inner walls of the first positioning cavity 111 that are opposite to each other along the third direction Z can limit the movement of the end plate 200 along the third direction Z in the first positioning cavity 111 .

[0052] In some embodiments, see Figure 3 , Figure 4 and Figure 8 The vertical distance between the two inner walls opposite to each other in the third direction Z of the first positioning cavity 111 matches the width of the end plate 200 (the vertical distance between the two ends in the third direction Z); the two inner walls opposite to each other in the third direction Z of the first positioning cavity 111 can respectively abut against the two ends of the end plate 200 to limit the end plate 200 along the third direction Z.

[0053] In another embodiment, a stopper 114 is provided on at least one inner wall of the first positioning cavity 111 along the third direction Z; the stopper 114 protrudes from the surface of the inner wall of the first positioning cavity 111. When the end plate 200 enters the first positioning cavity 111, the stopper 114 can abut against the end plate 200 to limit the movement of the end plate 200 along the third direction Z in the first positioning cavity 111.

[0054] Furthermore, the stopper 114 is an elastic stopper 114. When the end plate 200 enters the first positioning cavity 111, the end plate 200 can squeeze the stopper 114 to deform the stopper 114, thereby enabling the stopper 114 to adapt to end plates 200 of different widths, thereby expanding the use range of the patch device 100.

[0055] Exemplarily, the limiting member 114 may be made of elastic materials such as rubber and TPE.

[0056] Exemplarily, the limiting member 114 is substantially in the shape of a hemisphere, wherein the spherical surface faces the first positioning cavity 111 , so as to reduce obstruction to the end plate 200 when the end plate 200 is placed in the first positioning cavity 111 .

[0057] Exemplarily, the limiting member 114 may also be a spring ball.

[0058] See also Figures 1 to 5 The first positioning member 120 is movably disposed at one end of the main body 110 where the opening 117 is formed; within the movement range of the first positioning member 120, there is a working state in contact with the main body 110, and a non-working state in which at least a part of the first positioning member 120 is separated from the main body 110. When the first positioning member 120 changes from the non-working state to the working state, it can push the end plate 200 until one end of the end plate 200 is held against the inner wall of the first positioning cavity 111 along the first direction X, thereby limiting the position of the end plate 200 along the first direction X in the first positioning cavity 111.

[0059] When the first positioning member 120 is in the working state, the first positioning member 120 closes the opening 117 .

[0060] In some embodiments, one end of the first positioning member 120 is rotatably connected to the main body 110 , and the other end of the main body 110 can be connected to the main body 110 in a working state, and can be detached from the main body 110 in a non-working state.

[0061] For example, see Figure 2 and Figure 6 , the patch device 100 further includes a connecting assembly 150; the connecting assembly 150 includes a bearing 151 and a rotating shaft 152; the bearing 151 is fixed to one end of the main body 110 along the first direction X; one end of the rotating shaft 152 is inserted into the main body 110 and cooperates with the bearing 151 device, and the other end of the rotating shaft 152 is fixedly connected to one end of the first positioning member 120 along the first direction X. The first positioning member 120 can rotate with the rotating shaft 152 as the rotation center, so that the end of the first positioning member 120 away from the connecting assembly 150 can be connected to or disconnected from the main body 110.

[0062] The connecting assembly 150 further includes a first fixing member 153 and a second fixing member 154; one end of the first fixing member 153 is located in the main body 110 and is fixedly connected to one end of the rotating shaft 152; one end of the second fixing member 154 is located in the first positioning member 120 and is fixedly connected to one end of the rotating shaft 152 away from the bearing 151. The first fixing member 153 and the second fixing member 154 work together to prevent the rotating shaft 152 from falling off.

[0063] Exemplarily, the first fixing member 153 and the second fixing member 154 are both pins; the first fixing hole and the second fixing hole are respectively opened at both ends of the rotating shaft 152; the rod of the first fixing member 153 is inserted into the first fixing hole and has an interference fit with the inner wall of the first fixing hole, and the head of the first fixing member 153 is located on the side of the bearing 151 away from the first positioning member 120. The rod of the second fixing member 154 is inserted into the second fixing hole and has an interference fit with the inner wall of the second fixing hole, and the head of the second fixing member 154 is located on the side of the rotating shaft 152 away from the bearing 151.

[0064] For further information, see Figure 3 and Figure 5 The first magnetic member 112 is disposed on one end of the main body 110 with the opening 117, and the second magnetic member 124 with the opposite polarity to the first magnetic member 112 is disposed on one end of the first positioning member 120 away from the connecting assembly 150. When the end of the first positioning member 120 away from the connecting assembly 150 approaches the main body 110, the first magnetic member 112 and the second magnetic member 124 attract each other, so that the end of the first positioning member 120 away from the connecting assembly 150 is connected to the main body 110.

[0065] For further information, please refer to Figure 3 and Figure 5 The end of the main body 110 with the opening 117 is provided with a positioning member 113; the end of the first positioning member 120 away from the connecting assembly 150 is provided with a positioning hole 125. When the first positioning member 120 is accurately attached to the main body 110, the positioning member 113 is arranged in the positioning hole 125. The positioning member 113 cooperates with the positioning hole 125 to improve the positioning accuracy when the first positioning member 120 is connected to the main body 110.

[0066] Exemplarily, the alignment member 113 is cylindrical, and one end of the alignment member 113 is fixed to one end of the main body 110 where the opening 117 is formed.

[0067] In some embodiments, the first positioning member 120 is detachably connected to the main body 110 via a snap-fit ​​structure.

[0068] Exemplarily, at least one card slot is provided at one end of the main body 110 where an opening 117 is provided; a corresponding number of card blocks are provided at one end of the first positioning member 120 close to the main body 110; the card blocks are pluggably arranged in the card slot so that the first positioning member 120 and the main body 110 can be detachably connected.

[0069] See also Figure 1 , Figure 2 and Figure 7 The second positioning member 130 is arranged at one end of the main body 110 along the second direction Y; the second positioning member 130 is provided with a second positioning cavity 131 extending along the second direction Y, and the second positioning cavity 131 is connected to the first positioning cavity 111; the insulating sheet 300 can be placed in the second positioning cavity 131 so that the insulating sheet 300 contacts the end plate 200 fixed in the first positioning cavity 111.

[0070] When the first positioning member 120 pushes the end plate 200 so that one end of the end plate 200 is pressed against the inner wall of the first positioning cavity 111 along the first direction X, and the second positioning member 130 is arranged on one end of the main body 110 along the second direction Y; the operator can put the insulating sheet 300 into the second positioning cavity 131, and with the cooperation of the two inner walls of the second positioning cavity 131 along the third direction Z and at least one inner wall along the first direction X, the position of the insulating sheet 300 in the second positioning cavity 131 can be limited, so that the insulating sheet 300 can be accurately adhered to the end plate 200.

[0071] In some embodiments, a second chamfer 132 is formed between the inner wall of the second positioning cavity 131 and the end surface of the second positioning member 130 along the second direction Y. The insulating sheet 300 can be placed into the second positioning cavity 131 along the second chamfer 132 .

[0072] The second positioning member 130 is movably disposed at one end of the main body 110 along the second direction Y. Within the moving stroke, the second positioning member 130 has a positioning state in contact with the main body 110 and a non-positioning state in which at least a portion of the second positioning member 130 is separated from the main body 110 .

[0073] The second positioning member 130 is movably disposed on the main body 110 , so that when the area of ​​the insulating sheet 300 is larger than the area of ​​the end surface, the insulating sheet 300 can be taken out from the patch device 100 after being attached to the end plate 200 .

[0074] In some embodiments, the patch device 100 includes a first hinge 160 , and the second positioning member 130 is hinged to the main body 110 via the first hinge 160 .

[0075] Exemplarily, the first hinge 160 is a hinge.

[0076] In another embodiment, a first buckle is provided on the second positioning member 130 and a first buckle hole is provided on the main body 110; the first buckle is pluggably disposed in the first buckle hole so that the second positioning member 130 and the main body 110 are detachably connected.

[0077] See also Figure 2 and Figure 8 The patch device 100 further includes a third positioning member 140; the third positioning member 140 is disposed at one end of the main body 110 away from the second positioning member 130 along the second direction Y. The third positioning member 140 can block one end of the first positioning cavity 111 away from the second positioning member 130 along the second direction Y, so as to support the end plate 200 when the end plate 200 is placed in the first positioning cavity 111.

[0078] In some embodiments, see Figure 2 , Figure 4 and Fig. 9 The third positioning member 140 can be movably arranged at one end of the main body 110 away from the second positioning member 130 along the second direction Y; the end of the main body 110 away from the second positioning member 130 along the second direction Y has a third positioning cavity 115 extending along the first direction X, and the third positioning cavity 115 is connected to the first positioning cavity 111.

[0079] After an insulating sheet 300 is attached to one side of the end plate 200, the operator can flip the patch device 100 so that the third positioning piece 140 faces upward; by removing at least a portion of the third positioning piece 140 from the main body 110, another insulating sheet 300 can be placed in the third positioning cavity 115. With the cooperation of the two inner walls of the third positioning cavity 115 along the third direction Z and at least one inner wall along the first direction X, the position of the insulating sheet 300 in the third positioning cavity 115 can be limited, so that the insulating sheet 300 can be accurately attached to the end plate 200, thereby completing the double-sided attachment of the insulating sheet 300 to the end plate 200.

[0080] Compared with sticking the insulating sheet 300 only through the second positioning cavity 131 , the above method can greatly improve the efficiency of sticking the insulating sheet 300 on both sides of the end plate 200 .

[0081] In some embodiments, the patch device 100 further includes a second hinge 170 , and the third positioning member 140 is hinged to the main body 110 via the second hinge 170 .

[0082] Exemplarily, the second hinge 170 is a hinge.

[0083] In some embodiments, the third positioning member 140 is provided with a second buckle, and the main body 110 is provided with a second buckle hole; the second buckle is pluggably disposed in the second buckle hole, so that the third positioning member 140 and the main body 110 are detachably connected.

[0084] In some embodiments, a first chamfer 116 is provided between the inner wall of the third positioning cavity 115 and the end surface of the main body 110 along the second direction Y. The insulating sheet 300 can be placed into the third positioning cavity 115 along the first chamfer 116 .

[0085] In some embodiments, see Figure 1 and Figure 5 The first positioning member 120 is respectively provided with a push portion 121, a first limiting portion 122 and a second limiting portion 123; the push portion 121 protrudes from the outer surface of the first positioning member 120 close to one end of the main body 110; the first limiting portion 122 and the second limiting portion 123 are respectively arranged at both ends of the first positioning member 120 along the second direction Y, and protrude outward.

[0086] When the first positioning member 120 changes from a non-working state to a working state, the pushing portion 121 can abut against the end plate 200 and push the end plate 200 to move along the first direction X in the first positioning cavity 111 until one end of the end plate 200 abuts against the inner wall of the first positioning cavity 111 along the first direction X.

[0087] When the first positioning member 120 is in working state, the first limiting portion 122 can limit the movement of the insulating sheet 300 in the second positioning cavity 131 along the first direction X; the second limiting portion 123 can limit the movement of another insulating sheet 300 in the third positioning cavity 115 along the first direction X.

[0088] In some embodiments, see Figure 5 and Figure 8 Two abutting portions 121 are disposed at one end of the main body 110 close to the first positioning member 120 , and an avoidance groove 126 is defined between the two abutting portions 121 .

[0089] The two abutting portions 121 are respectively abutted against two sides of the same end of the end plate 200, which can effectively improve the stability of the end plate 200 moving in the first positioning cavity 111 along the first direction X. The avoidance groove 126 can avoid the components of the end plate 200 arranged along the first direction X to prevent the first positioning member 120 from interfering with the components on the end plate 200 when abutting against the end plate 200.

[0090] Compared with the related art that uses a large non-standard pasting mechanism to paste the insulating sheet 300 onto the end plate 200, the patch device 100 of the present application is simple to manufacture, has low use cost, occupies a small space, has good operation convenience, and can replace components of corresponding sizes according to the actual size of the end plate 200 and the insulating sheet 300 to expand the scope of application.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A patch device, characterized in that: The patch device (100) has a first direction (X) and a second direction (Y) that are perpendicular to each other, and the patch device (100) comprises: The main body (110) is provided with an opening (117) at one end along the first direction (X); the main body (110) also has a first positioning cavity (111) extending along the second direction (Y); the first positioning cavity (111) is in communication with the opening (117); A first positioning member (120) is movably disposed at one end of the main body (110) where the opening (117) is formed, and the first positioning member (120) is capable of closing the opening (117); A second positioning member (130) is movably disposed at one end of the main body (110) along the second direction (Y); the second positioning member (130) has a second positioning cavity (131) extending along the second direction (Y), and the second positioning cavity (131) is connected to the first positioning cavity (111).

2. The patch device according to claim 1, characterized in that: The second positioning member (130) is provided with a buckle, and the main body (110) is provided with a buckle hole; the buckle is pluggably disposed in the buckle hole.

3. The patch device according to claim 1, characterized in that: The patch device (100) further comprises a connection component (150), wherein the connection component (150) comprises: A bearing (151) is disposed on one end of the main body (110) close to the first positioning member (120); A rotating shaft (152), one end of which is inserted into the bearing (151) and rotatably cooperates with the bearing (151); one end of the rotating shaft (152) away from the bearing (151) is inserted into the first positioning member (120) and is fixedly connected to the first positioning member (120).

4. The patch device according to claim 3, characterized in that: The connection assembly (150) further includes: A first fixing member (153), one end of which is inserted into the bearing (151) and fixedly connected to an end of the rotating shaft (152) away from the first positioning member (120); One end of the second fixing member (154) is inserted into the first positioning member (120) and is fixedly connected to one end of the rotating shaft (152) away from the main body (110).

5. The patch device according to claim 1, characterized in that: A first magnetic component (112) is provided on one end of the main body (110) close to the first positioning component (120), and a second magnetic component (124) having a polarity opposite to that of the first magnetic component (112) is provided on the first positioning component (120); an alignment component (113) is provided on one end of the main body (110) close to the first positioning component (120), and an alignment hole (125) is opened on the first positioning component (120), and the alignment component (113) is pluggably arranged in the alignment hole (125).

6. The patch device according to claim 1, characterized in that: The patch device (100) further comprises a third positioning member (140); the third positioning member (140) is movably arranged at one end of the main body (110) away from the second positioning member (130) along the second direction (Y); the end of the main body (110) away from the second positioning member (130) along the second direction (Y) comprises a third positioning cavity (115), and the third positioning cavity (115) is connected to the first positioning cavity (111).

7. The patch device according to claim 6, characterized in that: The third positioning member (140) is provided with a buckle, and the main body (110) is provided with a buckle hole; the buckle is pluggably disposed in the buckle hole.

8. The patch device according to claim 1, characterized in that: The first positioning member (120) is respectively provided with a push portion (121), a first limiting portion (122) and a second limiting portion (123); the push portion (121) protrudes from the outer surface of the first positioning member (120) at one end close to the main body (110); the first limiting portion (122) and the second limiting portion (123) are respectively arranged at two ends of the first positioning member (120) along the second direction (Y), and protrude outward.

9. The patch device according to claim 8, characterized in that: The first positioning member (120) is provided with two abutting portions (121), and an avoidance groove (126) is provided between the two abutting portions (121).

10. The patch device according to claim 1, characterized in that: The main body (110) further comprises a limiting member (114), wherein the limiting member (114) is arranged on at least one inner wall of the first positioning cavity (111) along a third direction (Z); the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

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