Plastic shell sealing structure

Abstract

The invention discloses a plastic shell sealing structure which comprises a first shell and a second shell. The first shell is provided with an opening, a glue storage groove is formed in the opening end of the first shell, and the glue storage groove is formed along the inner contour line of the first shell; a plurality of fixing clamping grooves are formed in the inner side of the first shell, fixing buckles in one-to-one correspondence with the clamping grooves are arranged on the second shell, and the fixing buckles can be clamped in the fixing clamping grooves and seal the opening of the first shell. The plastic shell sealing structure can ensure that the first shell and the second shell have enough pressing force after being glued, so that the bad problem caused by improper installation is completely eradicated.

Description

Technical Field

[0001] The present invention belongs to the technical field of sensors, and in particular, relates to a plastic housing sealing structure. Background Art

[0002] With the popularization of automobiles and the upgrading of the automobile industry, more and more electronic equipment is used in automobiles. Among them, sensors play an important role in assisted driving, smart parking and many other aspects. In vehicle-mounted electronic equipment, plastic shell sensors have a harsh working environment and are required to have a dust and water resistance level of IP67. In order to meet the above sealing requirements, it is generally achieved by filling the inner cavity of the sensor shell with glue.

[0003] In the traditional gluing solution, there is no fixing design after gluing the upper cover and the lower cover, and it is impossible to ensure that the shells are tightly fixed in place, and there is a risk of sealing failure of the product. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a plastic shell sealing structure to solve the technical problem mentioned in the background art that the upper cover and the lower cover have no fixing design after being glued and cannot ensure that the shells are tightly fixed in place.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes:

[0006] A plastic housing sealing structure comprises a first housing and a second housing;

[0007] The first shell has an opening, and a glue storage groove is provided at the open end of the first shell, and the glue storage groove is opened along the inner contour line of the first shell;

[0008] The inner side of the first shell is provided with a plurality of fixed card slots, and the second shell is provided with fixed buckles corresponding to the card slots one by one, and the fixed buckles can be snapped into the fixed card slots and close the opening of the first shell.

[0009] Furthermore, the fixed slot includes an upper slot section, a middle slot section and a lower slot section; the upper slot section is a rectangular groove, the middle slot section is a quarter cylinder, and the arc surface faces the opening of the first shell, and the lower slot section is a rectangular groove. The upper slot section is a rectangular groove that can cooperate with the side stop surface of the fixed buckle to form a cavity, the lower surface of the middle slot section is a plane, and the lower slot section is a rectangular groove.

[0010] Furthermore, the fixing buckle includes an upper buckle section, a middle buckle section and a lower buckle section; the upper buckle section is a fixing claw part, which is a right-angled trapezoid; the middle buckle section is a connecting plate; the lower buckle section is a supporting foot, which is a triangular structure. The upper fixing claw part is set in a right-angled trapezoid, so that the fixing claw part is thicker as a whole to ensure that the force after fixing is large enough.

[0011] Furthermore, the glue storage groove is a semicircular groove.

[0012] Furthermore, a gap is left between the glue storage slot and the fixed card slot.

[0013] Furthermore, the fixing slots are symmetrically distributed in two groups along the central axis at the lower edge of the first shell, mirror-distributed in two groups along the central axis in the middle of the side, and symmetrically distributed in two groups along the central axis at the upper edge.

[0014] Furthermore, a plurality of reinforcing ribs are provided on the inner bottom surface of the second shell. The reinforcing ribs can increase the overall strength.

[0015] Furthermore, the fixing buckles are connected by reinforcing ribs, and the bottom strength of the fixing buckles can be further enhanced by the reinforcing ribs.

[0016] Furthermore, a mounting groove is provided at the open end of the first shell, and the glue storage groove and the fixing slot are respectively provided in the mounting groove.

[0017] Furthermore, the glue storage groove is located on a side of the mounting groove close to the outer surface of the first shell. By arranging the glue storage groove outward as much as possible, a better sealing effect can be ensured.

[0018] Compared with the prior art, the advantages of the present invention include:

[0019] In the present application, the fixed slot design of the first shell and the fixed buckle design of the second shell ensure that there is sufficient clamping force between the two shell parts after gluing, which can ensure that the shells remain tightly connected during the glue drying process and the installation process, thereby eliminating adverse problems caused by improper installation.

[0020] In addition, when applying glue, because a glue storage groove design is added on the glue bonding surface, the continuity of the glue on the glue bonding surface can be ensured and the bonding area of ​​the glue is increased, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a first shell of a plastic shell sealing structure in the present invention;

[0023] Figure 2 It is a schematic diagram of a second shell of a plastic shell sealing structure in the present invention.

[0024] Reference numerals:

[0025] The first shell 1, the glue storage slot 11, the fixed slot 12, the slot upper section 121, the slot middle section 122, the slot lower section 123, the installation slot 13, the second shell 2, the fixed buckle 21, the buckle upper section 211, the buckle middle section 212, the buckle lower section 213, and the reinforcing rib 22. DETAILED DESCRIPTION

[0026] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0027] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "an" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0029] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, when positional terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0030] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with general skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The embodiments of the present invention are intended to introduce and illustrate the structural composition of the plastic shell sealing structure and the matching relationship between the various components. Unless otherwise specified, the dimensions, materials and manufacturing processes of the various components in the plastic shell sealing structure in the embodiments of the present invention can be selected according to specific circumstances and are not specifically limited or described herein.

[0032] Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. For those skilled in the art, the present invention can be fully understood without the description of these details.

[0033] Please also read Figure 1 and Figure 2, this embodiment provides a plastic housing sealing structure, including a first housing 1 and a second housing 2;

[0034] The first shell 1 has an opening, and a glue storage groove 11 is provided at the open end of the first shell 1. The glue storage groove 11 is opened along the inner contour line of the first shell 1; that is, the glue storage groove 11 is provided with a circle. By opening the glue storage groove 11, glue is added to the glue storage groove 11 in advance during sealing, which facilitates the installation of the second shell 2 on the first shell 1.

[0035] The inner side of the first housing 1 is provided with a plurality of fixed card slots 12, and the second housing 2 is provided with fixed card buckles 21 corresponding to the card slots one by one, and the fixed card buckles 21 can be snapped into the fixed card slots 12 and close the opening of the first housing 1. That is, when the second housing 2 is snapped onto the first housing 1, it is first snapped into the card slot of the first housing 1 by the snap buckles, and then the lower surface of the second housing 2, i.e., the surface where the snap buckles are located, squeezes the glue in the glue storage groove 11, thereby completing the sealing and fixing.

[0036] In the present application, the fixing slot 12 of the first shell 1 and the fixing buckle 21 of the second shell 2 are designed to ensure that there is sufficient pressing force between the two parts of the shell after gluing, which can ensure that the shells remain tightly connected during the glue drying process and the installation process, thereby eliminating adverse problems caused by improper installation.

[0037] In addition, when applying glue, because the glue storage groove 11 is added to the glue bonding surface, the continuity of the glue on the glue bonding surface can be ensured and the bonding area of ​​the glue is increased, thereby improving the sealing effect.

[0038] In other schemes, the fixed card slot 12 includes a card slot upper section 121, a card slot middle section 122 and a card slot lower section 123; the card slot upper section 121 is a rectangular groove, the card slot middle section 122 is a quarter cylinder, and the arc surface faces the opening of the first shell 1, and the card slot lower section 123 is a rectangular groove. The card slot upper section 121 is a rectangular groove that can cooperate with the side blocking surface of the fixed buckle 21 to form a cavity, and the glue flows in after the glue is poured and waits for it to dry to seal the interlocking structure; the lower surface of the card slot middle section 122 is a plane, and when the fixed buckle 21 approaches the fixed card slot 12, the fixed claw part of the fixed buckle 21 is elastically deformed in the direction away from the card slot middle section 122 through the arc guide of the card slot middle section 122, and then falls into the lower surface of the card slot middle section 122, thereby achieving the clamping; the card slot lower section 123 is a rectangular groove, the main function of which is to accommodate the fixed claw of the buckle, and the size will be slightly higher than the height of the fixed claw for reservation.

[0039] In other schemes, the fixing buckle 21 includes a buckle upper section 211, a buckle middle section 212 and a buckle lower section 213; the buckle upper section 211 is a fixing claw part, which is a right-angled trapezoid; the buckle middle section 212 is a connecting plate; the buckle lower section 213 is a supporting foot, which is in the shape of a triangular structure. The upper fixing claw part is set in a right-angled trapezoid, so that the fixing claw part is thicker as a whole to ensure that the force after fixing is large enough. After the connection, the bottom edge of the right-angled trapezoid of the fixing claw is opposite to the lower plane of the middle section 122 of the slot; the buckle lower section 213 is a supporting foot in the shape of a triangular structure, which is more stable. Another function is that the area of ​​the supporting foot is larger than the area of ​​the upper section of the fixing slot so that it can cover it. The benefit brought is that when the upper cover is installed after the glue is applied, no glue will leak through the upper section of the fixing slot 12 to the internal cavity of the shell.

[0040] In other embodiments, the glue storage groove 11 is a semicircular groove. By setting it as a semicircular groove, the overall size ensures that enough glue is retained on the glue bonding surface, and can also satisfy the requirement of leaving a suitable spacing between the fixing slots 12 on the first housing 1.

[0041] In other schemes, a gap is left between the glue storage groove 11 and the fixed card slot 12. By setting a reasonable gap, it can be avoided that glue flows into the glue storage groove 11 when glue is added into the glue storage groove 11.

[0042] In other solutions, the fixing slots 12 are distributed in two groups symmetrically along the central axis at the lower edge of the first housing 1, in two groups mirrored along the central axis in the middle of the side, and in two groups symmetrically along the central axis at the upper edge. This division enables good fixation, and at the same time, the upper and lower edges are located closer to the turning angle of the housing to ensure that the turning angle can be installed in place.

[0043] In other embodiments, a plurality of reinforcing ribs 22 are provided on the inner bottom surface of the second housing 2. The reinforcing ribs 22 can increase the overall strength.

[0044] In other solutions, the fixing buckles 21 are connected by reinforcing ribs 22. The reinforcing ribs 22 can further strengthen the bottom strength of the fixing buckles 21.

[0045] In other solutions, the opening end of the first shell 1 is provided with a mounting groove 13, and the glue storage groove 11 and the fixing card groove 12 are respectively provided in the mounting groove 13. It should be understood that the mounting groove 13 is used to install the second shell 2, and the mounting groove 13 makes the second shell 2 and the first shell 1 have zero step difference on the outside after the second shell 2 and the first shell 1 are installed.

[0046] In other solutions, the glue storage groove 11 is located on the side of the mounting groove 13 close to the outer surface of the first housing 1. By arranging the glue storage groove 11 as far outward as possible, a better sealing effect can be ensured.

[0047] The above-mentioned plastic housing sealing structure can ensure that the first housing and the second housing have sufficient pressing force after being glued, thereby preventing problems caused by improper installation.

[0048] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A plastic housing sealing structure, characterized in that: comprising a first shell and a second shell; The first shell has an opening, and a glue storage groove is provided at the open end of the first shell, and the glue storage groove is opened along the inner contour line of the first shell; The inner side of the first shell is provided with a plurality of fixed slots, and the second shell is provided with fixed buckles corresponding to the slots one by one, and the fixed buckles can be snapped into the fixed slots and close the opening of the first shell.

2. A plastic housing sealing structure according to claim 1, characterized in that: The fixed slot includes an upper slot section, a middle slot section and a lower slot section; the upper slot section is a rectangular groove, the middle slot section is a quarter cylinder with the arc surface facing the opening of the first shell, and the lower slot section is a rectangular groove.

3. A plastic housing sealing structure according to claim 2, characterized in that: The fixing buckle includes an upper buckle section, a middle buckle section and a lower buckle section; the upper buckle section is the fixing claw part, which is a right-angled trapezoid; the middle buckle section is a connecting plate; the lower buckle section is a supporting foot, which is a triangular structure.

4. The plastic housing sealing structure according to claim 1, characterized in that: The glue storage groove is a semicircular groove.

5. The plastic housing sealing structure according to claim 1, characterized in that: A gap is left between the glue storage slot and the fixed card slot.

6. The plastic housing sealing structure according to claim 1, characterized in that: The fixing slots are symmetrically distributed in two groups along the central axis at the lower edge of the first shell, mirror-distributed in two groups along the central axis in the middle of the side, and symmetrically distributed in two groups along the central axis at the upper edge.

7. The plastic housing sealing structure according to claim 1, characterized in that: A plurality of reinforcing ribs are arranged on the inner bottom surface of the second shell.

8. The plastic housing sealing structure according to claim 7, characterized in that: The fixing buckles are connected by reinforcing ribs.

9. A plastic housing sealing structure according to any one of claims 1 to 8, characterized in that: The opening end of the first shell is provided with a mounting groove, and the glue storage groove and the fixing card groove are respectively arranged in the mounting groove.

10. A plastic housing sealing structure according to claim 9, characterized in that: The glue storage groove is located at a side of the installation groove close to the outer surface of the first shell.

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