CN220087161U - Inverter with built-in screen waterproof structure - Google Patents

Abstract

The utility model discloses an inverter with a built-in screen waterproof structure, which comprises a shell, a screen arranged on the shell, a waterproof structure and a power supply, wherein the shell is provided with a first window for displaying the screen; the waterproof structure comprises an intermediate structure for screen display and sealing structures circumferentially distributed on the outer side of the intermediate structure, the size of the intermediate structure is not smaller than that of the first window, and the sealing structures are in sealing connection with the inner wall of the shell. The utility model has an inner-outer double-layer waterproof structure, can ensure the waterproof function, is not only suitable for a capacitive screen, but also suitable for a resistive screen, and has attractive appearance and low cost.

Description

Inverter with built-in screen waterproof structure

Technical Field

The utility model relates to the technical field of inverters, in particular to an inverter with a built-in screen waterproof structure.

Background

In order to facilitate the operation and monitoring of a user, a touch key and a display window are arranged on the shell of the photovoltaic inverter or the energy storage inverter. A protective film is usually attached to the outside of the screen to realize the waterproof function of the screen. However, in the case of an inverter used outdoors, the protective film is liable to be aged due to long-term wind and sun exposure. When the outer protective film is damaged, if the inside of the inverter is not provided with secondary waterproof measures, water can enter the inverter, and the problem of electricity safety is caused.

In order to solve this problem, in the market at present, a hard transparent plastic structure is generally adopted, a structure capable of realizing a key and a display function is obtained by means of an open mold, and then a screen is stuck inside a shell by means of waterproof glue. The use of hard protective materials has special requirements for keys and screens, touch keys and touch screens are required, and touch screens must employ capacitive screens. Therefore, the existing waterproof structure of the inverter display screen has the following defects:

(1) A capacitive screen is needed, and compared with a resistive screen, the capacitive screen has higher cost;

(2) The capacitive screen is induced by the change of a capacitive field, and for a high-power inverter, as a plurality of electromagnetic elements and power devices are arranged in the high-power inverter, the electromagnetic field is large, and the capacitive screen is easy to interfere.

(3) The waterproof glue is coated inside the hard waterproof board, so that the operation is more troublesome, the appearance is poor, and the overall sensory effect is affected.

The foregoing background is only for the purpose of aiding in the understanding of the principles and concepts of the present utility model and is not necessarily related to the prior art or the technical teachings of the present application; the above background should not be used to assess the novelty and creativity of the present utility model in the event that no clear evidence indicates that such is already disclosed prior to the filing date of the present patent application.

Disclosure of Invention

The utility model aims to provide an inverter with a built-in screen waterproof structure, which has an inner-outer double-layer waterproof structure, can ensure the waterproof function, is suitable for a capacitive screen and a resistive screen, and has attractive appearance and low cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the inverter comprises a shell, a screen arranged on the shell, a waterproof structure made of transparent materials and a first window, wherein the screen is arranged on the shell and used for displaying the screen;

the waterproof structure comprises an intermediate structure for screen display and sealing structures circumferentially distributed on the outer side of the intermediate structure, the size of the intermediate structure is not smaller than that of the first window, and the sealing structures are in sealing connection with the inner wall of the shell.

Further, according to any one or a combination of the foregoing technical solutions, for the waterproof structure that is not mounted on the housing, the sealing structure includes a waterproof adhesive that is adhered to a surface of the waterproof structure and a sticker that is attached to the waterproof adhesive, the waterproof adhesive is disposed on a surface of the sealing structure that is attached to the housing, and an area of the sticker is not smaller than an area of the waterproof adhesive.

Further, the intermediate structure comprises a first raised cavity configured to receive the screen; and/or the number of the groups of groups,

the intermediate structure includes a second raised cavity configured to receive an indicator light of an inverter; and/or the number of the groups of groups,

the intermediate structure includes a third raised cavity configured to receive a key of an inverter.

Further, according to any one or a combination of the above-mentioned technical solutions, a boss structure for installing the waterproof structure is provided on the inner side of the housing, a plurality of riveting screws are provided on the boss structure, a plurality of through holes are provided on the sealing structure of the waterproof structure, the through holes are arranged in one-to-one correspondence with the riveting screws, the riveting screws penetrate through the through holes one by one, and the sealing structure is adhered to the boss structure through waterproof glue and is fixed on the boss structure through double-end internal thread studs;

the boss structure is provided with the first window, and the first window is configured to accommodate the first protruding cavity; and/or, a second window is arranged on the boss structure, and the second window is configured to accommodate the second protruding cavity; and/or a third window is arranged on the boss structure, and the second window is configured to accommodate the second protruding cavity;

the screen is fixed at the other end of the double-end internal thread stud through a bolt component.

Further, the combination of any one or more of the foregoing technical solutions, further comprising a waterproof film disposed outside the housing, wherein the waterproof film covers the first window, the second window, and the third window on the boss structure;

the outer side of the boss structure is provided with a groove at the position for adhering the waterproof film, and the depth of the groove corresponds to the thickness of the waterproof film.

Further, in any one or a combination of the foregoing aspects, the waterproof structure has a thickness of 0.15mm or more and 0.25mm or less.

Further, in light of any one or a combination of the foregoing aspects, the waterproof structure has a thickness of 0.175mm.

Further, the waterproof structure is made of PC material or PTE material; and/or the number of the groups of groups,

the waterproof structure is an integrated structure.

Further, in combination with any one or more of the preceding claims, an inner edge of the first protruding cavity is 1mm away from an outer edge of the screen; and/or the number of the groups of groups,

the inner edge of the second bulge cavity is 0.5mm away from the outer edge of the indicator lamp; and/or the number of the groups of groups,

the radial maximum dimension of the third protruding cavity is more than or equal to 8mm and less than or equal to 15mm.

Further, in carrying out any one or a combination of the foregoing aspects, a radial maximum dimension of the third protruding cavity is 10mm.

The technical scheme provided by the utility model has the following beneficial effects:

a. the inverter provided by the utility model has an internal screen waterproof structure, is in sealing connection with the inverter shell, is matched with an external waterproof film of the inverter, has good waterproof performance and waterproof service life, and is attractive;

b. the waterproof structure provided by the utility model is made of PC or PTE materials, the thickness of the waterproof structure is between 0.15mm and 0.25mm, the hardness is moderate, the compatibility is good, the waterproof structure is not only suitable for capacitive screens, but also suitable for resistive screens, and the inverter can select resistive screens with small electromagnetic interference resistance and low cost by adopting the waterproof structure;

c. the waterproof structure provided by the utility model is adhered to the inside of the inverter shell through waterproof glue, is convenient to assemble, and can improve the production efficiency;

d. the waterproof structure provided by the utility model is made of transparent PC or PTE material by integral molding, and has the advantages of no need of die sinking and low cost.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

Fig. 1 is a first angular exploded view of an inverter according to an exemplary embodiment of the present utility model;

fig. 2 is a second angular exploded view of an inverter according to an exemplary embodiment of the present utility model;

fig. 3 is a second angular exploded view of a waterproof structure according to an exemplary embodiment of the present utility model.

Wherein, the reference numerals include: 11-shell, 111-first window, 112-second window, 113-second window, 114-boss structure, 115-, 116-groove, 12-screen, 13-pilot lamp, 14-button, 15-waterproof film, 16-riveting screw, 17-double-ended internal screw bolt, 18-bolt assembly, 2-waterproof structure, 21-intermediate structure, 22-sealing structure, 211-first protruding cavity, 212-second protruding cavity, 213-third protruding cavity.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

Aiming at the defects of the existing waterproof structure of the inverter screen, the utility model provides the screen waterproof structure, which can solve the problems of complex installation, poor compatibility, special requirements on the type of the touch screen, easy interference by electromagnetic fields, high cost and poor appearance of the existing waterproof structure of the inverter product.

In one embodiment of the present utility model, referring to fig. 1, 2 and 3, there is provided an inverter having a built-in screen waterproof structure, comprising a housing 11, a screen 12, a waterproof film 15 and a waterproof structure 2, wherein the screen 12 may be a capacitive screen or a resistive screen, and in one embodiment of the present utility model, the screen 12 is an LCD touch screen disposed on the housing 11, and a first window 111 for displaying the screen 12 is disposed on the housing 11; the back of the waterproof film 15 is covered with waterproof glue, for example, 3M glue, which is adhered to the outer side of the housing 11 through the waterproof glue, and the waterproof film 15 covers the areas where the screen, the indicator light and the keys of the inverter are located, so that water is prevented from entering the interior of the inverter from the connection part of the housing 11 and the screen, the indicator light or the keys; the waterproof structure 2 is made of a transparent material and is in sealing connection with the inner wall of the housing 11, and the screen 12 is arranged on one side of the waterproof structure 2 close to the interior of the inverter.

For the waterproof structure 2 not mounted on the housing 11, the sealing structure 22 includes waterproof glue, such as 3M glue, coated on its surface; the surface of the waterproof glue is provided with a sticker, the waterproof glue is arranged on one surface of the sealing structure 22, which is attached to the shell 11, and the area of the sticker is not smaller than that of the waterproof glue. In the assembly process, the adhesive paper is torn off, so that the waterproof structure 2 can be adhered to the inner wall of the shell 11, the operation is convenient, and the production efficiency can be improved.

The waterproof structure 2 comprises an intermediate structure 21 for displaying the screen 12, and sealing structures 22 circumferentially distributed on the outer side of the intermediate structure 21, wherein the dimension of the intermediate structure 21 is not smaller than that of the first window 111, and the sealing structures 22 are in sealing connection with the inner wall of the housing 11. When the waterproof film 15 attached to the outside of the housing 11 is damaged, the waterproof structure 2 can prevent water from entering the inside of the inverter. According to the waterproof structure 2 and the waterproof film 15, through the waterproof design of the inner and outer combination, the inverter has good waterproof performance and waterproof service life, accords with the design of safety regulations, and is more attractive. The waterproof structure 2 can be made of PC or PTE and is integrally formed through a plastic sucking process or a hot pressing process, and the like, so that the waterproof structure can be organically combined with a display screen, an indicator lamp, keys and other structures on an inverter. The waterproof structure provided by the utility model does not need to be opened, and has low manufacturing cost and high production flexibility.

In addition, the thickness of waterproof construction 2 is greater than or equal to 0.15mm and less than or equal to 0.25mm, and this thickness within range waterproof construction 2 hardness is moderate, and the compatibility is good, not only is applicable to the electric capacity screen, also is applicable to the resistance screen, makes the dc-to-ac converter optional use the resistance screen that anti-electromagnetic interference is little and with low costs through adopting this waterproof construction to can guarantee life. Preferably, the thickness of the waterproof structure 2 is 0.175mm.

In an embodiment of the utility model, see fig. 1 and 2, the inverter is provided not only with the screen 12, but also with an indicator light 13 and keys 14 independent of the screen 12, the keys 14 being either mechanical keys or touch keys.

In this embodiment, the intermediate structure 21 includes a first protruding cavity 211, a second protruding cavity 212, and a third protruding cavity 213, where the first protruding cavity 211 is configured to accommodate the screen 12, and has an external shape that is consistent with the external shape of the screen 12, and a size that is slightly larger than the screen 12; the second protruding cavity 212 is configured to accommodate the indicator light 13, and has an external shape that is consistent with the external shape of the indicator light 13, and a size slightly larger than the indicator light 13; the third protruding cavity 213 is configured to receive the key 14, and has a shape that corresponds to the shape of the key 14 and a size that is slightly larger than the key 14. Preferably, the inner edge of the first protruding cavity 211 is spaced 1mm from the outer edge of the screen 12, so that the installation is convenient; the inner edge of the second protruding cavity 212 is spaced 0.5mm from the outer edge of the indicator light 13; the radial maximum dimension of the third protruding cavity 213 is greater than or equal to 8mm and less than or equal to 15mm, and if the radial maximum dimension is too large, abnormal sound will occur; if the radial maximum size is too small, the hardness is large, the keys are not operated well, or the keys are directly pressed, and the conditions of stroke and key failure are avoided. Advantageously, for round keys, the third protruding cavity 213 is designed to be round correspondingly, and its outer diameter is preferably 10mm, so as to ensure the key stroke and the actual operation effect. The waterproof structure 2 provided by the utility model can realize the normal use functions of a display screen and keys or a touch screen through calculation and precision control of a size chain.

In this embodiment, a groove 116 is provided at a position for attaching the waterproof film 15 outside the case 11, the shape of the groove 116 is identical to the shape of the waterproof film 15, and the depth thereof corresponds to the thickness of the waterproof film 15. The inner side of the shell 11 is provided with a boss structure 114 for installing the waterproof structure 2, the boss structure 114 is provided with a first window 111, a second window 112 and a third window 113, and the first window 111, the second window 112 and the third window 113 are all through hole structures. Wherein the first window 111 is configured to receive the first protruding cavity 211, the shape and size of which corresponds to the shape and size of the first protruding cavity 211; the second window 112 is configured to receive the second raised cavity 212 in a shape and size corresponding to the shape and size of the second raised cavity 212; the second window 113 is configured to receive the second protruding cavity 213, which corresponds in shape and size to the shape and size of the second protruding cavity 212.

It should be noted that the waterproof structure provided by the utility model is not only suitable for an inverter with a display screen, an indicator light and keys, but also suitable for an inverter with a touch screen integrated with the indicator light and the touch keys. If the inverter adopts a touch screen integrating an indicator light and a touch key, only one protruding cavity corresponding to the size and the shape of the touch screen is required to be arranged on the middle structure 21 of the waterproof structure 2, and only one window corresponding to the protruding cavity is required to be designed on the shell 11.

Referring to fig. 1 and 2, the housing 11, the waterproof structure 2 and the screen 12 are assembled together by a plurality of riveting screws 16, double-ended internal threaded studs 17 and bolt assemblies 18, and both ends of the double-ended internal threaded studs 17 are provided with internal threads. Specifically, the boss structure 114 is provided with a plurality of riveting screws 115, the sealing structure 22 of the waterproof structure 2 is provided with a plurality of through holes 221, the through holes 221 are arranged in one-to-one correspondence with the riveting screws 16, the riveting screws 16 penetrate through the through holes 221 one by one, and the sealing structure 22 is adhered to the boss structure 114 through waterproof glue and is fixed on the boss structure 114 through double-end internal thread studs 17. The screen 12 is secured to the other end of the threaded stud 17 by a bolt assembly 18.

In another embodiment of the present utility model, unlike the above-described embodiments, the waterproof structure 2 is not sealed to the inner wall of the housing 11 by a waterproof adhesive, but a sealing rubber is used. An annular groove is formed in the sealing structure 22, the annular groove is distributed around the outer side of the middle structure 21, and annular sealing rubber is arranged in the annular groove. When the housing 11, the waterproof structure 2 and the screen 12 are assembled together, the sealing rubber is in a compressed state, so that sealing is realized between the housing 11 and the waterproof structure 2. To enhance the sealing effect between the housing 11 and the waterproof structure 2, more than one set of annular grooves and sealing rubber may be provided on the sealing structure 22. Obviously, the annular groove and the sealing rubber may also be disposed on the inner wall of the housing 11, and the principle is the same, and will not be described again.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.

Claims (10)

1. The inverter with the built-in screen waterproof structure comprises a shell (11) and a screen (12) arranged on the shell (11), wherein a first window (111) for displaying the screen (12) is arranged on the shell (11), and the inverter is characterized by further comprising a waterproof structure (2) made of a transparent material, the waterproof structure (2) is in sealing connection with the inner wall of the shell (11), and the screen (12) is arranged on one side, close to the inside of the inverter, of the waterproof structure (2);

the waterproof structure (2) comprises an intermediate structure (21) for displaying the screen (12) and sealing structures (22) circumferentially distributed on the outer side of the intermediate structure (21), the size of the intermediate structure (21) is not smaller than that of the first window (111), and the sealing structures (22) are in sealing connection with the inner wall of the shell (11).

2. The inverter with built-in screen waterproof structure according to claim 1, wherein for the waterproof structure (2) not mounted on the housing (11), a sealing structure (22) includes a waterproof adhesive stuck to a surface thereof and a sticker attached to the waterproof adhesive, the waterproof adhesive being provided on a face of the sealing structure (22) which is stuck to the housing (11), and an area of the sticker is not smaller than an area of the waterproof adhesive.

3. Inverter with built-in screen waterproof structure according to claim 1, characterized in that said intermediate structure (21) comprises a first raised cavity (211) configured to house said screen (12); and/or the number of the groups of groups,

the intermediate structure (21) comprises a second raised cavity (212) configured to house an indicator lamp (13) of an inverter; and/or the number of the groups of groups,

the intermediate structure (21) comprises a third protruding cavity (213) configured to house a key (14) of an inverter.

4. An inverter with built-in screen waterproof structure according to claim 3, characterized in that a boss structure (114) for installing the waterproof structure (2) is arranged on the inner side of the housing (11), a plurality of riveting screws (16) are arranged on the boss structure (114), a plurality of through holes (221) are arranged on a sealing structure (22) of the waterproof structure (2), the through holes (221) are arranged in one-to-one correspondence with the riveting screws (16), the riveting screws (16) penetrate through the through holes (221), the sealing structure (22) is adhered to the boss structure (114) through waterproof glue, and is fixed on the boss structure (114) through double-end internal thread studs (17);

the boss structure (114) is provided with the first window (111), and the first window (111) is configured to accommodate the first protruding cavity (211); and/or, a second window (112) is arranged on the boss structure (114), and the second window (112) is configured to accommodate the second boss cavity (212); and/or, a third window (113) is arranged on the boss structure (114), and the third window (113) is configured to accommodate the third boss cavity (213);

the screen (12) is fixed at the other end of the double-end internal thread stud (17) through a bolt component (18).

5. The inverter with built-in screen waterproof structure according to claim 4, further comprising a waterproof film (15) provided outside the housing (11), the waterproof film (15) covering a first window (111), a second window (112) and a third window (113) on the boss structure (114);

the outer side of the boss structure (114) is provided with a groove (116) at the position for adhering the waterproof adhesive film (15), and the depth of the groove (116) corresponds to the thickness of the waterproof adhesive film (15).

6. Inverter with built-in screen waterproof structure according to claim 1, characterized in that the thickness of the waterproof structure (2) is 0.15mm or more and 0.25mm or less.

7. Inverter with built-in screen waterproof structure according to claim 6, characterized in that the waterproof structure (2) has a thickness of 0.175mm.

8. Inverter with built-in screen waterproof structure according to claim 1, characterized in that the waterproof structure (2) is made of PC material or PTE material; and/or the number of the groups of groups,

the waterproof structure (2) is an integrated structure.

9. An inverter with built-in screen waterproof structure according to claim 3, characterized in that the inner edge of the first protruding cavity (211) is 1mm from the outer edge of the screen (12); and/or the number of the groups of groups,

the inner edge of the second protruding cavity (212) is 0.5mm away from the outer edge of the indicator light (13); and/or the number of the groups of groups,

the radial maximum dimension of the third protruding cavity (213) is more than or equal to 8mm and less than or equal to 15mm.

10. An inverter with built-in screen waterproof structure according to claim 3, characterized in that the radial maximum dimension of the third protruding cavity (213) is 10mm.