CN210629834U

CN210629834U - Sound cavity structure of medical equipment and portable ultrasonic equipment

Info

Publication number: CN210629834U
Application number: CN201922013797.XU
Authority: CN
Inventors: 程阳阳
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-05-26
Anticipated expiration: 2029-11-20

Abstract

A sound cavity structure of a medical device and a portable ultrasonic device are provided, wherein the sound cavity structure comprises a shell, a loudspeaker and a buffer sleeve. The loudspeaker is fixedly mounted directly on the cushion collar and then the cushion collar and loudspeaker are mounted as a unit on the housing. The outer wall of the buffer sleeve is fixed and hermetically connected with the shell, and the installation cavity can be divided into a front sound cavity and a rear sound cavity which are not communicated with each other. In this structure, can omit fixed sheet metal component, the required part of structure is still less, and is simpler. And this cushion collar cover is established on the speaker, and the outer wall and the fixed and sealing connection of casing of cushion collar can prevent that cushion collar and speaker from shifting in the casing, guarantees the position of speaker.

Description

Sound cavity structure of medical equipment and portable ultrasonic equipment

Technical Field

The present application relates to a portable ultrasound device, and more particularly, to a sound cavity structure in a portable ultrasound device.

Background

Speakers are provided in many medical devices for voice prompting and broadcast. Taking a portable ultrasonic device as an example, a speaker and a corresponding buffer pad of the portable ultrasonic device are usually locked on a fixed sheet metal part by screws. After the screw is locked, the cushion rubber ring can be twisted by the torque force of the screw, so that the loudspeaker deviates, and after the metal plate support is installed, the loudspeaker interferes with the metal plate support to generate abnormal sound. Moreover, the conventional loudspeaker assembly mode needs a large number of parts, has a complex structure and high cost and assembly time.

Disclosure of Invention

The application provides a novel sound cavity structure of medical equipment and portable ultrasonic equipment adopting the sound cavity structure.

In one embodiment, a sound cavity structure of a medical device is provided, including:

the device comprises a shell, a sound outlet and a sound outlet, wherein the shell is provided with an installation cavity, and the cavity wall of the installation cavity is provided with a sound outlet hole;

a speaker disposed within the mounting cavity;

the buffer sleeve is sleeved on the loudspeaker, so that the loudspeaker and the buffer sleeve are fixedly connected into a whole, the buffer sleeve is installed in the installation cavity, the outer wall of the buffer sleeve is sealed and fixedly connected with the shell to prevent the buffer sleeve and the loudspeaker from shifting in the shell, the loudspeaker and the buffer sleeve divide the installation cavity into a front sound cavity and a rear sound cavity which are not communicated with each other, and the sound outlet hole is communicated with the front sound cavity.

In one embodiment, the side edge of the buffer sleeve is in sealing and fixed connection with the shell in at least one of interference fit, bonding and clamping.

In one embodiment, the buffer sleeve has a circle of side wall, one end of the side wall facing the sound outlet is a first end, the end opposite to the first end is a second end, the first end is provided with a first blocking portion extending inwards from the side wall, the second end is provided with a second blocking portion extending inwards from the side wall, and the side edge portion of the speaker is fixedly installed between the first blocking portion and the second blocking portion.

In one embodiment, the first barrier includes a first barrier with a substantially annular structure, the speaker is in sealing fit with the first barrier, and the sound outlet end of the speaker is exposed from the central hole of the first barrier.

In one embodiment, the second dam includes at least two second dams disposed at corners of the sidewalls.

In one embodiment, the gap between the first and second stoppers is less than or equal to the thickness of the side edge of the speaker, and when the speaker is mounted between the first and second stoppers, the first and second stoppers are closely attached to the side edge of the speaker.

In one embodiment, the casing has a pressing portion, the pressing portion is located in the rear sound cavity, the cushion sleeve has a cushion pad, the cushion pad is located at one end of the cushion sleeve facing the rear sound cavity and located on the outer side of the loudspeaker, and the pressing portion abuts against the cushion pad and presses the cushion pad and the loudspeaker tightly.

In one embodiment, the cushion spans the second end of the side wall.

In one embodiment, a surface of the cushion pad facing the extrusion part is provided with a convex rib, and the extrusion part is pressed against the convex rib.

In one embodiment, the ribs are generally cruciform in configuration.

In one embodiment, the first end has a supporting leg protruding therefrom, and the supporting leg is supported on the housing.

In one embodiment, the casing comprises an upper casing and a lower casing, the lower casing body and the bulge of the lower casing are arranged on the installation groove in the lower casing body, the sound outlet hole is formed in the groove bottom wall of the installation groove, the buffer sleeve and the loudspeaker are installed in the installation groove, the buffer sleeve and the loudspeaker are tightly pressed on the installation groove by the upper casing body, and are in sealing fit with the lower casing body to form the installation cavity.

In one embodiment, the present application provides a portable ultrasound device, which includes a host and a handle convenient for a user to hold, wherein the handle is connected to the host, and the handle or the host has a sound cavity structure as described in any one of the above items.

In one embodiment, the housing of the sound cavity structure is also a shell of the handle or the main machine.

In one embodiment, the sound cavity structures are arranged on the handle, and the two sound cavity structures are respectively arranged on two sides of the handle.

According to the sound cavity structure of the embodiment, the sound cavity structure comprises a shell, a loudspeaker and a buffer sleeve. The loudspeaker is fixedly mounted directly on the cushion collar and then the cushion collar and loudspeaker are mounted as a unit on the housing. The outer wall of the buffer sleeve is fixed and hermetically connected with the shell, and the installation cavity can be divided into a front sound cavity and a rear sound cavity which are not communicated with each other. In this structure, can omit fixed sheet metal component, the required part of structure is still less, and is simpler. And this cushion collar cover is established on the speaker, and the outer wall and the fixed and sealing connection of casing of cushion collar can prevent that cushion collar and speaker from shifting in the casing, guarantees the position of speaker.

Drawings

FIG. 1 is a schematic diagram of a portable ultrasound device according to an embodiment of the present application;

FIG. 2 is an exploded view of a handle of a portable ultrasound device in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a cushion collar according to an embodiment of the present disclosure;

FIGS. 4 and 5 are schematic views of different views of an assembled cushion cap and speaker according to an embodiment of the present disclosure;

fig. 6 is a cross-sectional view of a sound cavity structure in an embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The application provides a sound cavity structure of a medical device. The medical equipment is various equipment with sound external playing requirements, such as ultrasonic equipment (desk type or portable type), monitoring equipment and the like. The following description will mainly use a portable ultrasound device as an example to clearly illustrate the sound cavity structure presented in the present application. Of course, the sound cavity structure shown in the present embodiment can also be applied to other apparatuses besides the portable ultrasonic apparatus.

Referring to fig. 1, in one embodiment, the portable ultrasound device includes a main body 1000 and a handle 2000 for a user to hold, wherein the handle 2000 is connected to the main body 1000.

The host 1000 includes various structures of a housing, a control unit, a power supply, etc., which are known to those skilled in the art. The handle 2000 is connected to the main body 1000 so that a user can hold the handle 2000 for performing related operations, such as conveniently carrying the portable ultrasound apparatus for movement.

In addition, the handle 2000 and/or the main body 1000 has at least one sound cavity structure therein for receiving signals from the control unit and emitting related sound information.

Referring to fig. 2 to 6, in an embodiment, the sound cavity structure includes a housing 100, a speaker 200, and a buffer sleeve 300. The housing 100 has a mounting chamber, and a sound outlet hole 101 is formed in a wall of the mounting chamber. The installation chamber is substantially sealed except for the sound outlet hole 101. The speaker 200 is disposed within the mounting cavity. The buffer cover 300 is sleeved on the speaker 200, and fixedly connects the speaker 200 and the buffer cover 300 into a whole. The cushion cover 300 is installed in the installation cavity, and the outer wall of the cushion cover 300 is fixed and hermetically connected with the housing 100 to prevent the cushion cover 300 and the speaker 200 from being displaced in the housing 100. The speaker 200 and the cushion collar 300 divide the installation cavity into a front sound cavity a and a rear sound cavity B (as shown in fig. 6) which are not communicated with each other, and the sound outlet hole 101 is communicated with the front sound cavity a. The sound outlet end (e.g. the outward end of each diaphragm and cone) of the speaker 200 is located in the front sound cavity a to generate sound by vibrating to drive air flow. The sound emitted from the speaker 200 is guided through the sound emitting hole 101.

In this sound chamber structure, the speaker 200 is directly fixedly mounted on the cushion cover 300, and then the cushion cover 300 and the speaker 200 are mounted on the cabinet 100 as a whole. The outer wall of the buffer sleeve 300 is fixed and hermetically connected with the housing 100, and the mounting cavity can be divided into a front sound cavity a and a rear sound cavity B which are not communicated with each other. In this structure, can omit fixed sheet metal component, the required part of structure is still less, and is simpler. Moreover, the buffer sleeve 300 is sleeved on the loudspeaker 200, and the outer wall of the buffer sleeve 300 is fixedly and hermetically connected with the casing 100, so that the buffer sleeve 300 and the loudspeaker 200 can be prevented from shifting in the casing 100, and the position of the loudspeaker 200 can be ensured.

In particular, referring to fig. 6, in one embodiment, the side edge of the buffering sleeve 300 is fixed and hermetically connected with the casing 100 by at least one of interference fit, adhesion and clamping. Thus, the buffer sleeve 300 and the shell 100 can be connected without screws, the influence of screw fastening on the positions of the buffer sleeve 300 and the loudspeaker 200 is completely eliminated, and the loudspeaker 200 is prevented from deviating.

The cushion cover 300 can be made of various flexible materials, and can be made of, but not limited to, cushion materials in the prior art, such as silica gel. When the buffer cover 300 is fitted over the speaker 200, it can be tightly attached to the speaker 200 by deformation of the material itself. The cushion cover 300 itself can fix the position of the speaker 200, and can absorb the vibration of the speaker 200 to some extent, thereby reducing the transmission of the vibration to an undesired direction.

Referring to fig. 3 to 5, in one embodiment, the cushion sleeve 300 has a ring-shaped sidewall 310. The speaker 200 is mounted in the interior cavity defined by the side walls 310.

The shape of the cushion case 300 shown in fig. 3 to 5 is substantially rectangular, but the shape of the cushion case 300 is not limited to rectangular, and may be changed according to the actual installation space and the shape of the speaker 200, for example, designed as a circle, other polygon, or the like.

Referring to fig. 3 to 5, in an embodiment, an end of the sidewall 310 facing the sound outlet 101 is a first end 311, and an end opposite to the first end 311 is a second end 312.

The first end 311 is provided with a first dam portion protruding inwardly from the sidewall 310. The second end 312 is provided with a second dam portion protruding inwardly from the sidewall 310. The side edge portion of the speaker 200 is fixedly installed between the first dam portion and the second dam portion.

The gap between the first and second stoppers may be slightly less than or equal to the thickness of the side portion of the speaker 200, so that when the speaker 200 is mounted between the first and second stoppers, the first and second stoppers may be closely attached to the side portion of the speaker 200, and thus the speaker cannot move up and down relative to the cushion cover 300, thereby reducing relative displacement.

Of course, in some embodiments, the gap between the first and second stoppers may be larger than the thickness of the side portion of the speaker 200, and when the speaker 200 is mounted between the first and second stoppers, the first and second stoppers may not be completely attached to the side portion of the speaker 200, and then the speaker 200 and the cushion cover 300 are compressed by other compression portions, such as a compression portion which will be described later.

Further, referring to fig. 3 to 5, in an embodiment, the first stopper includes a first blocking body 320 having a substantially ring-shaped structure, and the sound outlet end of the speaker 200 is exposed from the central hole 321 of the first blocking body 320.

The first dam 320 is formed to extend from an inner side of the first end 311 of the sidewall 310 to a middle portion of the sidewall 310. The first dam 320 has a certain extended length so as to support the sound outlet end of the speaker 200. The speaker 200 is hermetically attached to the first dam 320.

Further, referring to fig. 3 to 5, in one embodiment, the second dam includes at least two second dams 330 disposed at corners of the sidewalls 310. In the rectangular cushion cover 300, the number of the second barriers 330 is four, and the second barriers are disposed at four corners of the rectangle. The second barrier 330 is triangular, and two sides of the triangular barrier are fixedly connected to two sides of the sidewall 310, respectively. The second dam 330 may block four corners of the speaker 200 to limit the speaker 200 in the direction of the second dam 330.

The above first dam 320 and the second dam 330 are only an example of the first dam and the second dam, and the first dam and the second dam are not limited to the structures of the first dam 320 and the second dam 330, and in other embodiments, the first dam and the second dam may be flexibly selected in other shapes and structures according to the specific structures and installation spaces of the cushion cover 300 and the speaker 200.

Further, in order to enhance the fixing effect of the buffer sleeve 300 and the speaker 200, referring to fig. 3 to 6, in an embodiment, the housing 100 has a pressing portion 111. The pressing portion 111 is located in the rear sound chamber B. The cushion cover 300 has a cushion pad 340, and the cushion pad 340 is located at one end of the cushion cover 300 facing the rear sound chamber B and outside the speaker 200. The pressing portion 111 abuts against the cushion 340 and presses the cushion 340 and the speaker 200, thereby enhancing the fixing effect of the cushion 340 and the speaker 200 to the housing 100.

Referring to fig. 3-5, in one embodiment, the cushion 340 spans the second end 312 of the sidewall 310. A large space is reserved below the cushion 340, and when the speaker 200 is installed, the speaker 200 is inserted from the second end 312 of the side wall 310 of the cushion cover 300, and at this time, the position of the cushion 340 does not affect the insertion and removal of the speaker 200.

Referring to fig. 3-5, in one embodiment, the cushion 340 spans two long sides of the sidewall 310. Of course, in other embodiments, the cushion 340 spans both short sides of the sidewall 310.

Referring to fig. 3 to 6, in an embodiment, a surface of the cushion 340 facing the pressing portion 111 has a rib 341, and the pressing portion 111 presses against the rib 341. The ribs 341 not only serve as reinforcing ribs, but also serve to buffer vibration, thereby reducing resonance of the housing 100.

Referring to FIG. 3, in one embodiment, the ribs 341 are substantially cross-shaped.

Further, referring to fig. 2 to 5, in an embodiment, the first end 311 has a supporting leg 350 protruding therefrom, and the supporting leg 350 is supported on the housing 100. Specifically, in the structure shown in fig. 2, the supporting legs 350 are supported on the lower case 100 of the case 100.

Further, referring to fig. 2 and 6, in one embodiment, the housing 100 includes an upper housing 110 and a lower housing 120. The cushion cover 300 and the speaker 200 are installed between the upper case 110 and the lower case 120. The upper housing 110 and the lower housing 120 are sealed, for example, by providing a sealing ring 130, dispensing a sealant, and the like.

With continued reference to fig. 2 and 6, in one embodiment, the lower case 120 has a lower case body 121 and a mounting groove 122 protruding on the lower case body 121. The sound outlet hole 101 is arranged on the groove bottom wall of the mounting groove 122, the buffer sleeve 300 and the loudspeaker 200 are mounted in the mounting groove 122, the buffer sleeve 300 and the loudspeaker 200 are pressed on the mounting groove 122 by the upper shell 110 and are in sealing fit with the lower shell body 121 to form a mounting cavity.

In this embodiment, the lower housing 120 is provided with a mounting groove 122 for mounting the cushion cover 300 and the speaker 200, and the lower housing 120 can also be used as the housing 100 of other components.

In the above-described sound cavity structure, the housing 100 may be a housing structure designed specifically for the sound cavity structure, or may be a housing shared with other components. As in the embodiment of fig. 2 and 6, the housing 100 is also the housing structure of the handle 2000. The housing 100 has an elongated structure to facilitate the user's grip. In other embodiments, the cavity structure may be disposed on the main unit 1000. The housing 100 of the acoustic chamber structure may (but need not) be the housing of the main unit 1000.

Referring to fig. 2, in one embodiment, the two sound cavities are separately formed on both sides of the handle 2000, so that sound can be emitted from both sides of the handle 2000, thereby facilitating sound transmission and better receiving by a user.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A sound cavity structure of a medical device, comprising:

a speaker disposed within the mounting cavity;

2. The acoustic chamber structure according to claim 1, wherein the side edges of the buffer sleeve are sealed and fixedly connected with the housing by at least one of interference fit, adhesion and clamping.

3. The sound cavity structure as claimed in claim 1, wherein the buffer cover has a ring of side walls, an end of the side wall facing the sound outlet is a first end, an end opposite to the first end is a second end, the first end is provided with a first blocking portion extending inward from the side wall, the second end is provided with a second blocking portion extending inward from the side wall, and the side edge portion of the speaker is fixedly installed between the first blocking portion and the second blocking portion.

4. The sound cavity structure as claimed in claim 3, wherein said first dam includes a first dam body having a substantially ring-shaped configuration, said speaker is sealingly attached to said first dam body, and a sound outlet end of said speaker is exposed from a central hole of said first dam body.

5. The sound cavity structure as claimed in claim 3, wherein said second dam includes at least two second dams disposed at corners of said side walls.

6. The sound chamber structure as claimed in claim 3, wherein the gap between the first and second stoppers is less than or equal to the thickness of the side edge portion of the speaker, and the first and second stoppers are closely attached to the side edge portion of the speaker when the speaker is mounted between the first and second stoppers.

7. The sound cavity structure of claim 3, wherein the housing has a pressing portion, the pressing portion is located in the rear sound cavity, the cushion sleeve has a cushion pad, the cushion pad is located at one end of the cushion sleeve facing the rear sound cavity and located outside the speaker, and the pressing portion abuts against the cushion pad and presses the cushion pad and the speaker.

8. The sound cavity structure of claim 7 wherein said cushion spans said second end of said side wall.

9. The sound chamber structure of claim 7, wherein a surface of the cushion pad facing the pressing portion has a rib, and the pressing portion presses against the rib.

10. The acoustic chamber structure of claim 9 wherein said ribs are generally in a cruciform configuration.

11. The sound cavity structure as claimed in claim 3, wherein said first end has a raised support foot, said support foot being supported on said housing.

12. The sound cavity structure according to any one of claims 1-11, wherein said housing comprises an upper housing and a lower housing, said lower housing and said protrusion of said lower housing are disposed on said lower housing, said sound outlet hole is disposed on the bottom wall of said mounting groove, said buffer sleeve and said speaker are mounted in said mounting groove, said upper housing presses said buffer sleeve and said speaker onto said mounting groove and sealingly engages with said lower housing to enclose said mounting cavity.

13. A portable ultrasound device comprising a main unit and a handle for a user to hold, the handle being connected to the main unit, the handle or the main unit having a sound chamber structure according to any one of claims 1 to 12.

14. The portable ultrasound device according to claim 13, wherein the housing of the acoustic chamber structure is simultaneously the housing of the handle or the main unit.

15. The portable ultrasound device of claim 13, wherein the acoustic chamber structure is provided on the handle, and the acoustic chamber structure is two, and is provided on both sides of the handle.