CN216927738U - Magnetic head assembly and card swiping equipment - Google Patents

Magnetic head assembly and card swiping equipment Download PDF

Info

Publication number
CN216927738U
CN216927738U CN202220799924.2U CN202220799924U CN216927738U CN 216927738 U CN216927738 U CN 216927738U CN 202220799924 U CN202220799924 U CN 202220799924U CN 216927738 U CN216927738 U CN 216927738U
Authority
CN
China
Prior art keywords
magnetic head
opening
sealing
shell
head assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202220799924.2U
Other languages
Chinese (zh)
Inventor
曾荣慧
林喆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Sunmi Technology Group Co Ltd
Citaq Co Ltd
Original Assignee
Shanghai Sunmi Technology Group Co Ltd
Citaq Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Sunmi Technology Group Co Ltd, Citaq Co Ltd filed Critical Shanghai Sunmi Technology Group Co Ltd
Priority to CN202220799924.2U priority Critical patent/CN216927738U/en
Application granted granted Critical
Publication of CN216927738U publication Critical patent/CN216927738U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Casings For Electric Apparatus (AREA)

Abstract

The utility model belongs to the field of card swiping equipment and discloses a magnetic head assembly and card swiping equipment, wherein the magnetic head assembly comprises a support, a flexible sealing element and a magnetic head, the support is arranged in a shell, a card swiping slot is formed in the shell, an opening is formed in the side wall of the card swiping slot, and an assembly opening is formed in the support corresponding to the opening; the flexible sealing element comprises a first sealing part and a second sealing part, the first sealing part extends into the assembly opening to be connected with the support in a sealing mode, the first sealing part is provided with an installation hole, the second sealing part is arranged on the outer side of the support and surrounds the assembly opening, and the second sealing part is abutted to the inner wall, provided with the opening, of the shell; the magnetic head is arranged in the mounting hole and fixedly connected with the bracket, and the magnetic head is abutted against the first sealing part. According to the utility model, the flexible sealing element is arranged on the support, and the flexible sealing element can seal the fit clearance between the magnetic head assembly and the shell in the end surface and the side surface in two directions after being pressed and deformed, so that dust and water flow are prevented from entering the inside of the card swiping equipment, and the service life of the card swiping equipment is prolonged.

Description

Magnetic head assembly and card swiping equipment
Technical Field
The utility model relates to the technical field of card swiping equipment, in particular to a magnetic head assembly and card swiping equipment.
Background
At present, card swiping equipment on the market, such as a card swiping magnetic head used by a handheld POS machine, does not have the waterproof and dustproof functions, and after a magnetic head assembly is installed in the whole machine, the magnetic head needs to move back and forth when swiping the card, so that a certain structure is formed between the magnetic head and a shell to avoid a gap, and the possibility that dust and water enter the inside of the whole machine is provided. When the card swiping equipment is stored and used in a dust environment or a rainwater humid environment for a long time, dust and rainwater can easily enter the whole machine along the gap between the magnetic head and the shell, the aging of electronic devices in the whole machine is accelerated, and the function damage of the card swiping equipment is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a magnetic head assembly and card swiping equipment, which can prevent dust and rainwater from entering the card swiping equipment, and have simple structure and less cost increase.
The technical scheme provided by the utility model is as follows:
on the one hand, a magnetic head assembly is provided for installing on equipment of punching the card, equipment of punching the card includes the shell, be equipped with the card slot of punching the card on the shell, be equipped with the opening on a lateral wall of card slot of punching the card, magnetic head assembly includes:
the bracket is used for being installed in the shell, and an assembling opening is formed in the bracket corresponding to the opening;
the flexible sealing element comprises a first sealing part and a second sealing part, the first sealing part extends into the assembly opening and is connected with the bracket in a sealing mode, an installation hole is formed in the middle of the first sealing part, the second sealing part is arranged on the outer side of the bracket and surrounds the assembly opening, and the second sealing part is used for being abutted to the inner wall, provided with the opening, of the shell;
the magnetic head is arranged in the mounting hole and fixedly connected with the support, and the outer side wall of the magnetic head is abutted to the inner side wall of the first sealing part.
In some embodiments, the inner side wall of the first sealing portion is provided with a protrusion, the protrusion extends along the circumferential direction of the first sealing portion to form a ring shape, and the protrusion abuts against the outer side wall of the magnetic head.
In some embodiments, the thickness of the outside of the second seal is greater than the thickness of the inside of the second seal.
In some embodiments, the second sealing portion includes a base portion and an abutting portion, one surface of the base portion is attached to a surface of the bracket, the abutting portion is obliquely provided on the other surface of the base portion, a height from one end of the abutting portion close to the fitting opening to the surface of the base portion is smaller than a height from the other end of the abutting portion to the surface of the base portion, and one end of the abutting portion away from the fitting opening is configured to abut against an inner wall of the housing where the opening is provided.
In some embodiments, the flexible seal is fixedly disposed to the stent by an injection process.
In some embodiments, a length of the first sealing portion in the head moving direction is greater than a length of the support.
In some embodiments, the magnetic head further includes a connecting member, one end of the connecting member is fixedly connected to a surface of the support away from the second sealing portion, and the other end of the connecting member is fixedly connected to an outer sidewall of the magnetic head.
In some embodiments, the bracket includes a mounting portion and two bar portions, one of the bar portions is disposed at one end of the mounting portion, the other of the bar portions is disposed at the other end of the mounting portion, the mounting opening is disposed on the mounting portion, and the two bar portions are respectively provided with the positioning hole.
In another aspect, a card swiping device is further provided, which comprises a housing and a magnetic head assembly according to any one of the above embodiments, wherein the magnetic head assembly is arranged in the housing.
In some embodiments, the housing includes a front shell and a rear shell, the front shell is disposed on the rear shell, one surface of the front shell, which is away from the rear shell, is recessed inwards to form a brush clamping groove, an opening is disposed on a side wall of the brush clamping groove, the magnetic head is movably disposed in the opening, and the second sealing portion abuts against an inner wall of the front shell, which is provided with the opening.
The utility model has the technical effects that: by arranging the flexible sealing element on the bracket, the flexible sealing element can seal the fit clearance between the magnetic head assembly and the shell in the two directions of the end surface and the side surface after being pressed and deformed, so that dust and water flow are prevented from entering the inside of the card swiping equipment, and the service life of the card swiping equipment is prolonged; in addition, the magnetic head assembly with the waterproof and dustproof functions has the advantages of simple structure, few components and less cost increase.
Drawings
The utility model is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is an exploded view of a magnetic head assembly according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a magnetic head assembly according to an embodiment of the present application;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a bottom view of a magnetic head assembly according to an embodiment of the present application;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;
FIG. 6 is an enlarged view at C of FIG. 5;
FIG. 7 is an exploded view of a card swiping device according to an embodiment of the present application;
FIG. 8 is a cross-sectional view of a cut-away plane parallel to the front of the card reader provided by an embodiment of the present application;
figure 9 is a cross-sectional view of a card reader with a cut plane parallel to the side of the card reader according to an embodiment of the present application.
Fig. 10 is an enlarged view at D in fig. 9.
The reference numbers illustrate:
100. a housing; 101. brushing a clamping groove; 102. an opening; 110. a front housing; 120. a rear housing;
10. a support; 11. an assembly port; 12. an assembling portion; 13. a bar-shaped portion; 131. positioning holes; 20. a flexible seal; 21. a first seal portion; 211. mounting holes; 212. a protrusion; 22. a second seal portion; 221. a base portion; 222. an abutting portion; 30. a magnetic head; 40. a connecting member.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "a" means not only "only one of this but also a case of" more than one ".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In one embodiment of the present application, a magnetic head assembly is configured to be mounted on a card reader, as shown in fig. 7 and 8, the card reader includes a housing 100, a card slot 101 is formed on the housing 100, and an opening 102 is formed on a side wall of the card slot 101.
As shown in fig. 1 and 2, the magnetic head assembly includes a support 10, a flexible sealing member 20 and a magnetic head 30, the support 10 is used for being installed in a casing 100, and a mounting opening 11 is formed in the support 10 corresponding to an opening 102; the flexible sealing element 20 comprises a first sealing part 21 and a second sealing part 22, the first sealing part 21 extends into the assembly opening 11 and is connected with the bracket 10 in a sealing manner, the middle of the first sealing part 21 is provided with a mounting hole 211, the second sealing part 22 is arranged on the outer side of the bracket 10 and is arranged around the assembly opening 11, and the second sealing part 22 is used for being abutted against the inner wall of the shell 100 provided with the opening 102; the magnetic head 30 is disposed in the mounting hole 211 and is fixedly connected to the carriage 10, and the outer side wall of the magnetic head 30 abuts against the inner side wall of the first sealing portion 21.
Specifically, after the magnetic head assembly is installed in the casing 100, the mounting opening 11 of the bracket 10 is disposed corresponding to the opening 102 of the card swiping slot 101, the magnetic head 30 is movably disposed in the opening 102, the size of the magnetic head 30 is smaller than that of the opening 102, so that the magnetic head 30 can move back and forth in the opening 102 when swiping the card, that is, a gap is formed between the outer side wall of the magnetic head 30 and the inner side wall of the opening 102, and dust and water flow can enter the casing 100 from the gap between the magnetic head 30 and the opening 102.
In this embodiment, the flexible sealing member 20 is disposed between the magnetic head 30 and the support 10, the flexible sealing member 20 may be made of a flexible material such as silicon rubber or rubber, and the first sealing portion 21 and the second sealing portion 22 of the flexible sealing member 20 are integrally formed. Preferably, the flexible sealing member 20 is combined with the bracket 10 through a low-temperature injection process, so that the flexible sealing member 20 and the bracket 10 are combined into a whole, the sealing performance of the joint of the flexible sealing member 20 and the bracket 10 is improved, and dust and water flow are prevented from entering the card swiping device from the joint of the flexible sealing member 20 and the bracket 10.
The magnetic head 30 is disposed in the mounting hole 211 of the first sealing portion 21, the bottom of the magnetic head 30 is connected with a magnetic head FPC, the magnetic head 30 is fixedly connected with the support 10, as shown in fig. 3 and 4, the magnetic head 30 can be fixedly connected with the support 10 through a connecting member 40, the connecting member 40 is L-shaped, one end of the connecting member 40 is fixedly connected with one side of the support 10 away from the second sealing portion 22 through a spot welding process, and the other end of the connecting member 40 is fixedly connected with the outer side wall of the magnetic head 30 through a spot welding process.
The support 10 is a steel sheet, the magnetic head 30 is fixed in the card swiping device through the support 10, and when the magnetic head 30 moves in the opening 102, the support 10 can generate certain deformation so that the magnetic head 30 can move smoothly. As shown in fig. 1, the bracket 10 includes a fitting portion 12 and two bar portions 13, one bar portion 13 is disposed at one end of the fitting portion 12, the other bar portion 13 is disposed at the other end of the fitting portion 12, a fitting opening 11 is disposed on the fitting portion 12, and positioning holes 131 are respectively provided on the two bar portions 13. When the card is swiped, the magnetic head 30 is moved in the shell 100 by the card, the magnetic head 30 moves to deform the two strip-shaped parts 13 to provide a moving space for the magnetic head 30, and after the card is taken out, the two strip-shaped parts 13 reset to reset the magnetic head 30. The strip-shaped portion 13 is provided with a positioning hole 131, and the bracket 10 is connected with a positioning column in the housing 100 through the positioning hole 131 in a positioning manner, so as to fix the magnetic head assembly in the card swiping device.
As shown in fig. 5 and 6, the first sealing portion 21 of the flexible sealing member 20 wraps the magnetic head 30, and the first sealing portion 21 abuts against the magnetic head 30, and due to the flexibility of the first sealing portion 21, the first sealing portion 21 deforms after being pressed to seal the gap between the magnetic head 30 and the support 10, so that dust and water flow cannot enter the inside of the card swiping device from the gap between the magnetic head 30 and the support 10.
As shown in fig. 8, the second sealing portion 22 of the flexible sealing member 20 is annular and is disposed around the assembly opening 11, after the magnetic head assembly is installed in the card swiping device, the second sealing portion 22 abuts against the inner wall of the shell 100, which is provided with the opening 102, due to the flexibility of the second sealing portion 22, the second sealing portion 22 deforms after being squeezed to seal the gap between the magnetic head assembly and the shell 100, so that dust and water entering from the opening 102 cannot enter the card swiping device, and the problem that the user uses the card swiping device in severe environments such as rainwater and dust is solved, and the dust and rainwater easily enter the card swiping device to cause accelerated aging and malfunction of devices inside the card swiping device is solved.
In this embodiment, it is necessary to ensure that the gap between the magnetic head assembly and the housing 100 can be sealed when the flexible sealing member 20 is pressed, so that the elastic force of the deformed support 10 is moderate, and when the magnetic head 30 moves to deform the support 10, it is still necessary to ensure that the flexible sealing member 20 abuts against the inner wall of the housing 100, so as to ensure the waterproof and dustproof effects. At the same time, the carriage 10 is required to ensure a life requirement of 30 million reciprocations of the magnetic head.
In the embodiment, by arranging the flexible sealing element 20, the flexible sealing element 20 is deformed under pressure to seal the fit clearance between the magnetic head assembly and the shell 100 in the two directions of the end surface and the side surface, so that dust and water flow are prevented from entering the inside of the card swiping equipment, and the service life of the card swiping equipment is prolonged; in addition, the magnetic head assembly with the waterproof and dustproof functions has the advantages of simple structure, few components and less cost increase.
Preferably, as shown in fig. 6, the inner side wall of the first sealing part 21 is provided with a protrusion 212, and the protrusion 212 is formed along the inner side wall
The circumferential extension of the first seal portion 21 forms a closed ring shape, and the protrusion 212 abuts against the outer side wall of the magnetic head 30. The protrusion 212 is provided on the inner side wall of the first sealing portion 21, and the protrusion 212 abuts against the magnetic head 30, so that the abutting force between the first sealing portion 21 and the magnetic head 30 can be improved, and the sealing property between the first sealing portion 21 and the magnetic head 30 can be improved. The length of the first sealing part 21 along the moving direction of the magnetic head 30 is greater than that of the support 10 along the moving direction of the magnetic head, and the first sealing part 21 has a certain length to better wrap the magnetic head 30 so as to improve the sealing property between the first sealing part 21 and the magnetic head 30.
The thickness of the outer side of the second sealing part 22 in the moving direction of the magnetic head 30 is greater than the thickness of the inner side of the second sealing part 22. The outer side of the second seal portion 22 refers to a side of the second seal portion 22 away from the fitting opening 11; the inner side of the second sealing portion 22 refers to a side of the second sealing portion 22 close to the fitting opening 11. When the outer side of the second sealing part 22 abuts against the inner wall of the housing 100, the outer side of the second sealing part 22 is pressed to deform so as to prevent dust and water flow from flowing into the card swiping device from the gap between the second sealing part 22 and the housing 100, and the height of the outer side of the second sealing part 22 is higher than that of the inner side, so that the water flow cannot flow through the outer side of the second sealing part 22.
As shown in fig. 6, the second sealing portion 22 includes a base portion 221 and an abutting portion 222, one surface of the base portion 221 is attached to the surface of the bracket 10, the abutting portion 222 is obliquely disposed on the other surface of the base portion 221, a height from one end of the abutting portion 222 close to the mounting port 11 to the surface of the base portion 221 is smaller than a height from the other end of the abutting portion 222 to the surface of the base portion 221, and one end of the abutting portion 222 away from the mounting port 11 is used for abutting against the inner wall of the housing 100 provided with the opening 102.
The inner side of the base part 221 is connected with the first sealing part 21, the bottom surface of the base part 221 is connected with the surface of the bracket 10, the contact part 222 is arranged on the top surface of the base part 221, the contact part 222 is obliquely arranged on the top surface of the base part 221, and one end of the contact part 222, which is far away from the assembling port 11, has a certain distance with the top surface of the base part 221, so that the contact part 222 has a certain displacement space when being pressed. The abutting portion 222 is deformed by pressure to close the gap between the bracket 10 and the housing 100, thereby achieving the waterproof and dustproof effects.
The utility model also provides a specific embodiment of the card swiping device, which comprises a shell 100 and the magnetic head assembly of the above embodiment, wherein the magnetic head assembly is arranged in the shell 100, and the structure of the magnetic head assembly is shown in fig. 1 to 6.
As shown in fig. 7 and 8, the housing 100 includes a front shell 110 and a rear shell 120, the front shell 110 covers the rear shell 120, a face of the front shell 110 away from the rear shell 120 is recessed to form a card reading slot 101, a side wall of the card reading slot 101 is provided with an opening 102, the magnetic head 30 is movably disposed in the opening 102, and the second sealing portion 22 abuts against an inner wall of the front shell 110 provided with the opening 102.
As shown in fig. 9 and 10, the magnetic head assembly is installed in the card swiping device, the first sealing portion 21 and the second sealing portion 22 of the flexible sealing member 20 are pressed to deform, the inside of the card swiping device is isolated from the outside, dust and water flow enter a gap between the magnetic head 30 and the opening 102 from the card swiping groove 101 and are isolated by the flexible sealing member 20 and cannot enter the inside of the card swiping device, so that electronic components inside the card swiping device are prevented from being accelerated to age due to the influence of rainwater and the like, and the service life of the card swiping device is prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a magnetic head subassembly for install on equipment of punching the card, equipment of punching the card includes the shell, be equipped with the card slot of punching the card on the shell, be equipped with the opening on a lateral wall of card slot of punching the card, its characterized in that, magnetic head subassembly includes:
the bracket is used for being installed in the shell, and an assembling opening is formed in the bracket corresponding to the opening;
the flexible sealing element comprises a first sealing part and a second sealing part, the first sealing part extends into the assembly opening and is connected with the bracket in a sealing mode, an installation hole is formed in the middle of the first sealing part, the second sealing part is arranged on the outer side of the bracket and surrounds the assembly opening, and the second sealing part is used for being abutted to the inner wall, provided with the opening, of the shell;
the magnetic head is arranged in the mounting hole and fixedly connected with the support, and the outer side wall of the magnetic head is abutted to the inner side wall of the first sealing part.
2. A magnetic head assembly according to claim 1, wherein the inner side wall of the first sealing portion is provided with a protrusion extending in a circumferential direction of the first sealing portion to form a ring shape, and the protrusion abuts against the outer side wall of the magnetic head.
3. A magnetic head assembly according to claim 1, wherein the thickness of the outside of said second sealing portion is larger than the thickness of the inside of said second sealing portion.
4. A magnetic head assembly according to claim 3,
the second sealing portion includes a base portion and an abutting portion, one surface of the base portion is attached to a surface of the bracket, the abutting portion is obliquely disposed on the other surface of the base portion, a height from one end of the abutting portion close to the fitting opening to the surface of the base portion is smaller than a height from the other end of the abutting portion to the surface of the base portion, and one end of the abutting portion away from the fitting opening is used for abutting against an inner wall of the housing, where the opening is provided.
5. A magnetic head assembly according to any of claims 1 to 4, wherein said flexible seal is fixedly mounted to said support by an injection process.
6. A magnetic head assembly according to any of claims 1 to 4, wherein the length of said first sealing portion in the direction of head movement is greater than the length of said support.
7. A magnetic head assembly as claimed in any one of claims 1 to 4, further comprising a connector, one end of the connector being fixedly connected to a surface of the bracket remote from the second sealing portion, and the other end of the connector being fixedly connected to an outer sidewall of the magnetic head.
8. A magnetic head assembly according to any of claims 1 to 4, wherein said bracket includes a fitting portion and two bar portions, one of said bar portions being provided at one end of said fitting portion and the other of said bar portions being provided at the other end of said fitting portion, said fitting opening being provided in said fitting portion, and positioning holes being provided in each of said two bar portions.
9. A card swiping device comprising a housing and a magnetic head assembly according to any one of claims 1 to 8, said magnetic head assembly being disposed within said housing.
10. The card swiping device according to claim 9, wherein the housing comprises a front shell and a rear shell, the front shell is arranged on the rear shell, a face of the front shell away from the rear shell is recessed inwards to form a card swiping slot, an opening is arranged on a side wall of the card swiping slot, the magnetic head is movably arranged in the opening, and the second sealing portion abuts against an inner wall of the front shell, where the opening is arranged.
CN202220799924.2U 2022-03-31 2022-03-31 Magnetic head assembly and card swiping equipment Active CN216927738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220799924.2U CN216927738U (en) 2022-03-31 2022-03-31 Magnetic head assembly and card swiping equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220799924.2U CN216927738U (en) 2022-03-31 2022-03-31 Magnetic head assembly and card swiping equipment

Publications (1)

Publication Number Publication Date
CN216927738U true CN216927738U (en) 2022-07-08

Family

ID=82234800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220799924.2U Active CN216927738U (en) 2022-03-31 2022-03-31 Magnetic head assembly and card swiping equipment

Country Status (1)

Country Link
CN (1) CN216927738U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115376241A (en) * 2022-08-22 2022-11-22 全南英创电子有限公司 Magnetic head structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115376241A (en) * 2022-08-22 2022-11-22 全南英创电子有限公司 Magnetic head structure
CN115376241B (en) * 2022-08-22 2023-11-03 全南英创电子有限公司 Magnetic head structure

Similar Documents

Publication Publication Date Title
CN216927738U (en) Magnetic head assembly and card swiping equipment
JP4834657B2 (en) Sealing structure with gasket
CN110035212B (en) Camera module and terminal
CN102077574A (en) Spacer member for camera module and camera module equipped with the same
US8238071B2 (en) Elastic sheet structure and electronic device employing the same
CN113096990B (en) Mobile terminal side key structure and terminal
CN211239625U (en) Novel motor fixing and grounding installation structure
US8150476B2 (en) Battery interface assembly for a communication device
CN107979931B (en) electronic device
CN115002261B (en) Electronic equipment
JP5045910B2 (en) Seal structure of electronic equipment
JP4487892B2 (en) Waterproof structure of switch device
CN115050598A (en) Electronic device
CN213987519U (en) Magnetic head assembly with waterproof function, card reader and card swiping equipment
CN107071100B (en) Shell assembly and mobile terminal
CN217860889U (en) Positioning structure and terminal
CN213939710U (en) Power supply device of aerosol generator and aerosol generator
CN112243492A (en) Pressure sensor module
CN220823113U (en) Electronic equipment
CN113132599B (en) Camera module and terminal
CN220368547U (en) Motor
CN218380008U (en) Electronic expansion valve and air conditioning system
CN217334500U (en) Earphone protective structure and electronic equipment
CN219842809U (en) Mobile hard disk box
CN219997655U (en) Magnetic head, magnetic head mounting structure and POS machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant