WO2018130159A1

WO2018130159A1 - Sealing connection interface, and assembly and device comprising the interface

Info

Publication number: WO2018130159A1
Application number: PCT/CN2018/072135
Authority: WO
Inventors: 陈万华; 张勇
Original assignee: 柏怡电子有限公司
Priority date: 2017-01-10
Filing date: 2018-01-10
Publication date: 2018-07-19

Abstract

A sealing connection interface, comprising : a glue filled tank (111), located on a first component (11), for accommodating sealing glue; a connection portion (121) located on a second component (12), the connection portion (121) protruding into the glue filled tank (111) for accommodating the sealing glue, so as to form a sealing connection. Further provided are a corresponding assembly and device. The described sealing connection interface can enable the sealing connection between the first component (11) and the second component (12) to be more stable.

Description

Sealed connection interface and component and device including the same

Technical field

The present invention relates to the field of sealing technology, and in particular to a sealed connection interface and an assembly and device including the same.

Background technique

With the development of technology, users have more and more requirements for the design of related accessories for various electronic products, currently in various fields, such as: chargers, mobile units, power converters, and so on. It is necessary to waterproof the outer casing of each product.

The housing design currently used includes: the solution mentioned in the CN204465071 patent, when the cover body is combined with the housing, a groove is formed between the inner circumference of the housing and the outer circumference of the cover, in the groove The sealant is injected into the seal to complete the sealing connection of the interface between the housing and the cover body. However, such a sealing connection, the contact surface of the sealant with the housing and the cover body is liable to fall off or form a gap, thereby causing failure of the sealing action.

Summary of the invention

In order to solve the above problems, the present invention provides an interface for sealing connection and an assembly and device including the same. By forming the sealing connection by inserting the connecting portion into the potting tank containing the sealant, the connecting portion is surrounded by the sealant, so that the sealing connection between the two components can be made stronger by using the connecting interface.

A first aspect of the invention provides a sealed connection interface, comprising:

a potting tank for accommodating the sealant on the first component;

a connecting portion on the second component, the connecting portion extending into the potting tank for accommodating the sealant to form a sealed connection.

A second aspect of the present invention provides an assembly comprising: a first component, a second component;

The first component includes a potting tank disposed on the first component for receiving a sealant;

The second component includes a connecting portion corresponding to the potting tank. When the first component is mated with the second component, the connecting portion protrudes into the potting tank for accommodating the sealant. A sealed connection of the first component and the second component.

Further, when the first component is mated with the second component, a top surface of the potting tank and a corresponding portion of the second component are fixedly connected.

Further, the fixed connection includes: welding, bonding.

Further, the first component includes a housing, and the filling tank is disposed along an open end of the housing;

The second member includes a cover body, and the cover portion is disposed at a position where the cover body mates with the open end of the housing.

Further, the first and/or second component further includes at least one accommodating groove for accommodating at least one third component, and the sealing glue is injected into the accommodating groove accommodating the third component to form a The sealing connection of the third component to the receiving groove.

Further, the accommodating groove is in communication with the potting tank.

Further, the third component includes a cable and an interface.

Further, at least a portion of the surface of the third component forms a non-smooth surface.

A third aspect of the invention also provides a device, comprising the assembly of any of the second aspects.

As can be seen from the above, the present invention provides a sealed connection interface and an assembly and device including the same. The following technical effects are achieved by forming the sealing portion into the potting tank containing the sealant to form a sealed connection:

1. Since the connecting portion is inserted into the filling tank filled with the sealing glue, when the sealing glue is solidified, the interface is sealedly connected; in addition, since the connecting portion protrudes into the filling tank, the connecting portion is sealed. The enveloping of the glue, so the use of this interface makes the sealing connection between the two components more secure.

2. Due to the resistance of the connecting portion, even if the contact surface is separated and formed into a gap due to long-term use, the U-shaped gap is formed due to the blocking of the connecting portion or the connecting portion is separated from the sealant, so that the outside is The material does not flow directly into the housing, so the sealed connection interface of the present invention is more durable and waterproof.

3. Since the connecting portion is arranged on the cover body (the first component), the filling tank is arranged on the casing (the second component), so that when the sealing glue is injected into the filling tank, the cover body is combined with the casing, and the connection is made. After the glue is inserted into the glue filling tank, when the sealant is solidified, the cover body and the glue filling tank are tightly combined. On the one hand, the connecting portion can be more advantageous for the cover and the housing to be firmly connected. On the other hand, due to the resistance of the connecting portion, even if the contact surface of the sealant and the housing is detached due to long-term use, the sealing is not strict. However, due to the presence of the joint, the slit is U-shaped such that the liquid flowing in the slit does not directly flow into the casing, so that the assembly of the present invention is more durable.

4. Since the accommodating groove is further disposed on the cover body and/or the casing, when the cable and the interface (the third component) are disposed in the accommodating groove, the glue is filled in the accommodating groove, and the cable can be completed. A sealed connection between the interface and the housing.

5. Since the accommodating groove is in communication with the potting tank, the filling of the accommodating tank and the potting tank can be completed by one time filling the glue.

6. Since the top surface of the potting tank is fixedly connected to the second part when the first part is matched with the second part, the connection between the first part and the second part may be increased. Firmness.

7. Since the fixed connection is welded or bonded, the sealing and firmness of the sealed connection between the first component and the second component can be increased.

8. Since at least part of the outer surface of the cable and the interface (third component) form a non-smooth surface, the cable and the interface are more firmly connected to the sealant.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments and the prior art description will be briefly described below. Obviously, the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those skilled in the art without any inventive effort.

FIG. 1 is a schematic structural diagram of an overall structure of an outer casing according to an embodiment of the present invention; FIG.

2 is a schematic structural view of a housing of a housing according to an embodiment of the present invention;

3 is a schematic structural view of a cover body of an outer casing according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an overall structure of a housing of a charger according to another embodiment of the present invention; FIG.

FIG. 5 is a schematic diagram of an overall structure of an outer casing of another charger according to an embodiment of the present invention, wherein an upper structure of the cable is included, and an overall structure of the cable is removed;

6 is a schematic axial cross-sectional view of a casing according to an embodiment of the present invention, wherein a left side is a cross-sectional view of the overall structure, and a right side is a partially enlarged cross-sectional view of the potting tank;

7 is a schematic axial cross-sectional view of a charger according to an embodiment of the present invention, wherein a left side is a schematic overall cross-sectional view, and a right side is a partially enlarged schematic view of a connection between a cable and a housing;

8 is a top plan view of various embodiments of a potting tank provided by an embodiment of the present invention;

FIG. 9 is a partial structural schematic view of another sealed outer casing according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. Some embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope should fall within the scope of the present invention.

Embodiment 1

1 is a schematic structural view of a sealed outer casing according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a casing according to an embodiment of the present invention; and FIG. 3 is a structure of a cover provided by an embodiment of the present invention; schematic diagram.

The present embodiment is described in detail as an embodiment of the assembly according to the present invention, wherein the housing is a first component and the cover is a second component, but the assembly of the present invention and its first and The two components are not limited to the sealed casing described in the embodiment and the casing and the cover thereof, and it should be understood that any component including the need to seal the first and second components is within the scope of protection of the present invention. For example, the cover may be the first component, the housing may be the second component, etc., and other embodiments are not described herein.

As shown in Figures 2 and 3, an embodiment of the present invention provides an interface for a sealed connection, the interface comprising:

a potting tank 111 for accommodating a sealant on the casing 11;

The connecting portion 121 is located on the cover body 12, and the connecting portion 121 extends into the potting tank 111 for accommodating the sealant to form a sealed connection.

By adopting the interface of the sealing connection described above, since the connecting portion is inserted into the filling tank filled in the sealing glue, when the sealing glue is solidified, the cover body is sealed and sealed with the housing; In the filling tank, the connecting portion is surrounded by the sealant, so that the interface can make the sealing connection between the two components more firm.

On the other hand, due to the resistance of the connecting portion, even if the contact surface of the sealant and the housing is separated due to prolonged use, a gap is formed, resulting in a tight seal, but the connection is blocked or the connection portion is The phase separation of the sealant forms a U-shaped gap, so that external substances (such as water) do not directly flow into the housing. Therefore, the sealed connection interface of the present invention is also more durable and waterproof.

As shown in FIGS. 1 and 2, the embodiment of the present invention further provides a sealed casing 10 including a casing 11 and a cover 12.

The housing 11 includes a potting tank 111 for receiving a sealant disposed at a position where the cover body 12 is engaged.

The cover 12 includes a connecting portion 121 disposed at a position where the housing 11 is engaged with the housing 11. When the housing 11 is engaged with the cover 12, the connecting portion 121 extends into the sealing member for receiving the sealant. A sealed connection between the housing and the cover is formed in the potting tank 111.

Generally, the open end 11A of the housing 11 is engaged with the cover 12, that is, the open end 11A may be a joint with the housing 11, and thus the sealing end is disposed along the open end 11A for accommodating the sealant. a filling tank 111; when the lid body 12 is engaged with the housing 11, the position of the lid body 12 corresponding to the open end 11A of the surface of the housing is the lid body 12 and the The joint portion of the casing 11 is provided with a connecting portion 121 at a corresponding position, so that the connecting portion 121 can extend into the potting tank 111.

According to the sealing case described above, since the cover body comprises a potting tank, the housing comprises a connecting portion. When the cover body and the housing are matched, the connecting portion protrudes into the potting tank filled in the sealant when the seal is sealed. After the glue is solidified, the cover body is sealingly combined with the housing; in addition, since the connecting portion protrudes into the potting tank, the connecting portion is surrounded by the sealant, so the interface can be used to seal the connection between the two components. More solid.

On the other hand, due to the resistance of the connecting portion, even if the contact surface of the sealant and the housing is separated due to prolonged use to form a gap, resulting in a tight seal, due to the blocking of the connecting portion, or the connecting portion and the sealing The separation of the rubber phase forms a U-shaped gap, so that the external matter (such as water) does not directly flow into the casing, so the casing of the present invention is more durable and the waterproof effect is better.

In some preferred embodiments, as shown in FIGS. 1, 2, and 3, the potting tank 111 is located at an end surface of the open end 11A of the housing, such that when the housing 11 and the cover 12 are mated, When the two are combined, the cover 12 can cover the surface of the potting tank 111 to form a shadow on the potting tank. Compared with the sealing structure mentioned in the background art, the sealed shell adopting the structure is more beautiful, and The shielding effect of the cover body makes the sealant less in contact with the outside, so that the sealing effect is more firm.

FIG. 9 is a partial structural schematic view of another sealed outer casing according to an embodiment of the present invention, wherein the glue filling groove is located at a side of the open end of the casing.

As shown in FIG. 9, in addition to the above preferred embodiment, the potting tank 121' may also be located at any position near the open end 11A, such as a side surface (as shown in FIG. 9), such that the cover 11 is The connecting portion 111' extends from the side of the housing 12 into the potting groove 121', and the sealing connection effect can also be achieved.

FIG. 8 is a top plan view of various embodiments of a potting tank provided by an embodiment of the present invention.

As shown in FIG. 8 , it should be noted that the potting tank may be of any shape. Since the shell encloses an approximately cylindrical wall and the interior is hollow for accommodating objects, the potting tank corresponds to the shell. The open end of the body wall forms an annular ring. The potting tank can be designed to have any corresponding shape as the shape of the open end of the housing changes.

Continuing with FIG. 8, the potting tank 111 is not limited to a smooth annular ring (as shown in the leftmost figure of FIG. 8), which may be waved (as shown in the middle of FIG. 8), a broken line, A ring of any other shape may be provided as long as it can correspond to the open end of the casing as a whole.

The plurality of potting tanks may be one or more. When there are a plurality of potting tanks, the plurality of potting tanks 111 may be arranged side by side in a radial direction (as shown in the rightmost figure in FIG. 8), corresponding to The connecting portion may be one or plural.

It should be further noted that the connecting portion 121 corresponds to the potting tank, and any shape that ensures that the connecting portion can extend into the potting tank, such as a sheet structure (as shown in FIG. 3), may also be curved. a structure that is bent or has an arbitrary shape (not shown); it may be a whole annular sheet-like structure (as shown in FIG. 3), or may be a plurality of sheets, a ring-shaped structure, and the like. (The figure is not shown). The surface of the connecting portion may be a smooth surface or a non-smooth surface, and when it is a non-smooth surface, it can be better combined with the sealing glue in the filling tank. The non-smooth surface may be at least one rib, groove, bump, pit, etc. (not shown), and the shape of the rib, the groove, the bump, and the pit may be arbitrary, as long as it can be guaranteed It is within the scope of the present invention to be more securely attached to the sealant.

It should be noted that the axial length of the connecting portion corresponds to the axial depth of the potting tank, and the deeper the joint is inserted into the potting tank, the greater the tightness of the connection between the lid body and the shell can be ensured. And the firmness, and after the gap is formed between the sealant and the joint to ensure that foreign matter enters the casing from the smallest possibility within the gap. It should be noted that, except for the preferred embodiment, the axial length of the connecting portion may be any length smaller than the depth of the potting tank.

It should be noted that the sealant can be made of various waterproof sealants, such as silicone glue and polyurethane glue.

It should be further noted that, as shown in FIG. 2 and FIG. 3, the connecting portion 121 and the cover body 12, the potting tank 111 and the housing 11 are preferably preset integrally, so that the cover body 12 and the cover 12 can be prevented to a minimum. A gap is formed between the connecting portion 121, the potting tank 111 and the casing 11, so that sealing failure may be caused thereby. In addition to being preset as an external body, the connecting portion and the cover body may be fixedly connected together by various prior art techniques such as bonding, snapping, screwing, and the like. Since the technology of the fixed connection belongs to the prior art, details are not described herein again.

FIG. 4 is a schematic diagram of an overall structure of a housing of a charger according to another embodiment of the present invention. FIG. 5 is a schematic diagram of an overall structure of an outer casing of another charger according to an embodiment of the present invention, wherein the upper part is a schematic diagram of an overall structure including a cable, and the lower part is a schematic diagram of an overall structure of the removed cable.

As shown in FIGS. 4 and 5, in other preferred embodiments, the object contained in the sealed casing often needs to be physically and electrically connected to the outside through the connecting member, and the connecting member needs to pass through the sealed casing, thereby causing the connecting member and the connecting member. A gap is created at the joint of the sealed casing, causing the seal to fail. For this purpose, at least one accommodating groove 112 is provided on the sealed casing, and the portion of the connecting member located in the accommodating groove 112 is referred to as a third member 20.

The following is a further detailed description of the case where the sealed case is applied to a charger in an electronic device or an electronic accessory. Since the charger needs to be electrically connected to the outside through the connecting member, the external cable 20, the cable needs to be electrically connected through the sealed housing 10 and the electronic components (not shown) contained in the sealed housing 10, so that the cable is connected with In the embodiment of the present invention, at least one accommodating groove 112 is further disposed on the sealed casing 10, and the cable passes through the accommodating groove. A part of the cable (referred to as the third component 20) is located in the accommodating groove 112, and is filled in the accommodating groove 112. When the sealant is solidified, the portion between the cable 20 and the sealed casing 10 can be completed. Sealed connection.

It should be noted that the accommodating groove may be formed in any shape penetrating the sealed outer casing; the size of the accommodating groove needs to be ensured that the cable can be traversed, and a certain space is used for potting; the number of accommodating grooves It can be set to any as needed.

It should be further noted that, in addition to the cable, in some electronic devices or accessories, the third component may also include various interfaces, such as a USB interface, a network cable interface, etc., as above. In the above, each interface can be disposed in the accommodating groove, and then the glue is filled into the accommodating groove to fill the gap between the accommodating groove and each interface, thereby achieving a sealed connection between the interface and the accommodating groove.

The third component, in addition to the cables or interfaces listed above, any component that needs to pass through the sealed outer casing may be disposed in the accommodating groove, and then the sealing connection is achieved by the above-mentioned glue filling.

It should be noted that the plurality of accommodating slots may be one or more. When the number of the third components is plural, the plurality of third components may be accommodated in the same accommodating slot. Can be accommodated in different accommodating slots.

As shown in FIG. 5, in some preferred embodiments, when the accommodating slot accommodates the cable, at least the outer end of the accommodating groove 112 forms a shielding surface 1121, and the shielding surface 1121 is provided with a corresponding third component. The through hole of the 20, for example, the through hole needs to be traversed by the cable when the third component is a cable, and the outer peripheral surface of the interface needs to be ensured when the third component is an interface. The interface can be connected to the outside world smoothly. This reduces the contact of the sealant with the external environment, thus further increasing the aesthetics and durability of the sealed enclosure.

It should be noted that the accommodating groove may be disposed on the housing or may be disposed on the cover body. As shown in FIG. 5, the specific embodiment is preferably disposed on the housing 11, because the volume of the housing is usually Relatively large, it can be placed at any position on the housing 11.

As shown in FIG. 5, in some preferred embodiments, the accommodating groove 112 is preferably in communication with the potting tank 111, for example, under the potting tank 1111 and connected to the potting tank (as shown in FIG. 5), but It is not limited to being located below, so that the injection of the accommodating groove 112 and the potting tank 111 can be completed at the same time, and it is also more beautiful and durable.

6 is a schematic axial cross-sectional view of a casing according to an embodiment of the present invention, wherein the left side is a cross-sectional view of the overall structure, and the right side is a partially enlarged cross-sectional view of the potting tank.

As shown in FIG. 6, in some preferred embodiments, in order to further enhance the firmness of the connection between the housing and the cover body, when the cover body and the housing are combined, the end surface 1111 of the potting tank 111 is The lower surface of the cover 12 is fixedly connected at a corresponding position. It should be noted that the end surface 1111 of the potting tank 111 may abut each other at a position corresponding to the lid body 12, or a certain small gap may exist. The fixed connection may include various methods in the prior art, such as welding, bonding, snapping, screwing, and the like. The specific embodiment is preferably welded and bonded, so that the connection stability can be increased, and the sealing property of the connection between the cover and the housing can be increased. The welding can include various prior art welding methods, including It is not limited to: ultrasonic welding, laser welding, hot-melt welding, etc., among which ultrasonic welding is preferred, and the welding method has the advantages of energy saving, beauty, and the like. The material used for the bonding is preferably a sealant having a sealing property.

FIG. 7 is a schematic axial cross-sectional view of a charger according to an embodiment of the present invention, wherein the left side is a schematic overall cross-sectional view, and the right side is a partially enlarged schematic view of the connection between the cable and the outer casing.

As shown in FIG. 7, in some preferred embodiments, as described above, the housing 11 may be provided with a receiving groove 112 for filling the receiving groove 112 to seal the third member 20 and the sealing case 10. . However, since the third component needs to be constantly moved, thereby easily causing a gap between the third component and the contact surface of the sealant in the groove 1112 to cause a seal failure, the third component 20 can be made to prevent sealing failure due to cable activity. At least a portion of the outer surface forms a non-smooth surface 31 such that the contact surface is more securely attached to the sealant.

The non-smooth surface 31 may be at least one rib (as shown in FIG. 7), a groove (not shown), a bump, a pit, etc., the rib, the groove, the bump, the pit The shape can be arbitrary, as long as it is ensured that it can be more firmly connected to the sealant, and is within the scope of protection of the present invention.

Embodiment 2

Embodiment 2 of the present invention further provides a device including the component as described in Embodiment 1.

The sealed housing assembly is described in the first embodiment, and details are not described herein again.

It should be noted that the sealed casing of the present invention can be applied to any device that needs to be sealed, such as: electronic accessories (chargers, mobile units, power adapters, etc.), electronic devices (computers, PADs, etc.), non- Other types of electronics that require sealing, and the like. These devices tend to be placed in the housing of electronic components or objects that need to be isolated from certain objects in the external environment (such as water, oil, etc.), so the housing needs to be sealed.

The term “and/or” in the terminology is merely an association that describes the associated object, indicating that there may be three relationships, such as: A and/or B, which may indicate that A exists separately, while A and B exist, and B exists separately. These three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

The terms "first", "second", "third", etc. (if present) in the claims and the description of the invention and the above figures are used to distinguish similar objects and are not necessarily used to describe particular Order or order. It is to be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein. Moreover, the terms "comprising" and "having" and "the" For example, a process, method, system, product, or device that comprises a series of steps or modules is not necessarily limited to those steps or modules that are clearly listed, but includes those processes, methods, systems, and products that are not explicitly listed or Or other steps or modules inherent to the device.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The fixed connections described in this embodiment include, but are not limited to, fixed connections by bonding, or by detachable means such as snaps, screws, or the like.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related description of other embodiments.

It should be noted that those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the structures and modules involved are not necessarily required by the present invention.

The sealing interface provided by the embodiment of the present invention and the components and devices including the same are described in detail above, but the description of the above embodiments is only for helping to understand the method and the core idea of the present invention, and should not be construed as being limit. Those skilled in the art, in light of the spirit of the present invention, are susceptible to variations and substitutions within the scope of the present invention.

Claims

A sealed connection interface, characterized by:

a potting tank for accommodating the sealant on the first component;

a connecting portion on the second component, the connecting portion extending into the potting tank for accommodating the sealant to form a sealed connection.
An assembly comprising: a first component and a second component;

The first component includes a potting tank disposed to be engaged with the second component for accommodating the sealant;

The second component includes a connection portion disposed at a mating portion with the first member, the connection portion extending into the sealing member for receiving a sealant when the first member is mated with the second member A sealed connection of the first component and the second component is formed in the potting tank.
The assembly of claim 2 wherein when the first member is mated with the second member, the top surface of the potting tank and the corresponding portion of the second member are fixedly coupled.
The assembly of claim 3 wherein said fixed connection comprises: welding, bonding.
The assembly according to claim 2 or 3 or 4, wherein the first member comprises a housing, and the potting tank is disposed along an open end of the housing;

The second member includes a cover body, and the cover portion is disposed at a position where the cover body mates with the open end of the housing.
The assembly of claim 2 or 3 or 4, wherein said first and / or second member further comprises at least one receiving groove for receiving at least one third member, said A sealant is injected into the accommodating groove accommodating the third member to form a sealed connection between the third member and the accommodating groove.
The assembly of claim 6 wherein said receiving groove is in communication with said potting tank.
The assembly of claim 6 or claim 7 wherein the third component comprises a cable, an interface.
The assembly of claim 6 or claim 7 wherein at least a portion of the surface of the third member forms a non-smooth surface.
A device comprising the assembly of any of claims 2-9.