Installation fool-proof structure of circular surface paste and inverter

Abstract

An installation fool-proof structure of a circular surface sticker comprises a surface sticker, a surface sticker backboard and a surface sticker back adhesive, the surface sticker backboard is arranged on a casing of an inverter, the surface sticker back adhesive is arranged on the back of the surface sticker so that the surface sticker and the surface sticker backboard are fixed together, the surface sticker backboard is provided with positioning convex points, and the positioning convex points are arranged on the surface sticker backboard. Matched receding notches are formed in the positions, corresponding to the positioning protruding points, of the face sticker back glue, and the positioning protruding points and the receding notches are positioned in a matched mode so that the face sticker and the face sticker back plate can be accurately installed in an aligned mode. The positioning salient point is arranged on the surface sticker, and the matched avoiding notch is formed in the position, corresponding to the positioning salient point, of the surface sticker back adhesive, so that an operator only needs to find out the positioning salient point of a back plate of the upper sticker of the shell to be aligned and matched with the avoiding notch of the surface sticker back adhesive and then tear off release paper of the surface sticker back adhesive during assembly and installation; therefore, the installation work can be completed by aligning and pasting the face paste back glue and the face paste back plate, a large amount of aligning time due to the fact that the face paste does not have a fool-proof structure is saved, and the rework rejection rate caused by the fact that the face paste does not have the fool-proof structure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, in particular to a fool-proof installation structure of a circular surface sticker and an inverter. Background Art

[0002] At present, the operation display screen, external display LED light, and touch buttons of household photovoltaic inverters often need to use PC or acrylic sheets as substrates and then paste the surface stickers composed of waterproof double-sided adhesive as intermediate transition components on the chassis to achieve waterproof and beautiful effects. This type of PC and acrylic sheets are widely used because they are easy to customize and cut into various shapes and are moderately priced.

[0003] However, in order to match the appearance design, many shapes of face stickers have been adopted, including circular face stickers. Generally, the assembly of non-circular face stickers does not need to consider fool-proof design due to their special shapes, but circular face stickers need to be designed to prevent fools because they have no special shape positioning. Otherwise, the assembly is prone to misalignment problems, resulting in problems such as the misalignment of the display screen. And the conventional circular face sticker's fool-proof design is to process a notch on the edge of the circular face sticker, and add an insert at the edge of the inverter chassis backplane corresponding to the face sticker, so that they match each other to achieve the fool-proof effect; or print a reference point or pattern on the face sticker and the inverter chassis, and then install them in position. These two fool-proof structures are achieved on the basis of destroying the appearance of the inverter chassis and the appearance of the face sticker. The integrity of the appearance of the inverter chassis is damaged, thus affecting the overall aesthetics of the product. Utility Model Content

[0004] The utility model aims to provide a fool-proof installation structure for a circular face sticker to solve the problem that the design of the fool-proof structure of the existing circular face sticker needs to destroy the appearance of the chassis shell or the face sticker.

[0005] The technical solution adopted by the utility model is: to provide a fool-proof installation structure of a circular surface sticker, which is used for an inverter, and comprises a surface sticker, a surface sticker back plate and a surface sticker back adhesive. The surface sticker back plate is arranged on a casing of the inverter, and the surface sticker back adhesive is arranged on the back of the surface sticker, so that the surface sticker and the surface sticker back plate are tightly attached and fixed on the casing, positioning convex points are arranged on the surface sticker back plate, and the surface sticker back adhesive is provided with matching avoidance notches at positions corresponding to the positioning convex points. The positioning convex points and the avoidance notches cooperate for positioning, so that the surface sticker and the surface sticker back plate are accurately aligned and installed.

[0006] Preferably, the height of the positioning protrusions is less than the thickness of the adhesive backing of the surface sticker.

[0007] Preferably, the positioning protrusion is arranged at any one of the above, below, left and right sides of the center of the back plate of the face sticker.

[0008] Preferably, the surface material is PC or acrylic sheet.

[0009] Preferably, the utility model also provides an inverter, comprising the circular surface sticker installation fool-proof structure as described above.

[0010] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by providing positioning protrusions on the face sticker back plate on the inverter casing, and providing matching avoidance notches at the positions of the positioning protrusions corresponding to the positioning protrusions on the back adhesive of the face sticker, the operator can first find the positioning protrusions of the face sticker back plate for pre-positioning during assembly and installation, and then find the avoidance notches on the back adhesive of the face sticker and align and insert them, and then tear off the release paper on the back adhesive of the face sticker, so that the face sticker back adhesive and the face sticker back plate are aligned and pasted to complete the installation work, which saves a lot of alignment time due to the face sticker having no anti-fool structure, greatly reduces the rework and scrap rate caused by the face sticker having no anti-fool structure, and protects the integrity of the casing and the appearance of the face sticker. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model 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 of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of the structure of the front side of the face sticker;

[0013] Figure 2 It is a schematic diagram of the structure on the back of the face sticker;

[0014] Figure 3 It is a schematic diagram of the front structure with the surface sticker installed on the casing;

[0015] Figure 4 This is a schematic diagram of the back structure where the surface is mounted on the casing;

[0016] Figure 5 It is an exploded diagram of the overall structure of the surface mount installed on the casing.

[0017] Description of reference numerals:

[0018] 10. Casing; 1. Surface sticker; 2. Surface sticker back panel; 21. Positioning bumps; 3. Surface sticker adhesive backing; 31. Avoidance notch. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the utility model Figure 1-4, clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "back", "side", "circumferential" and the like in the present invention indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the words "first", "second" and the like are only used to distinguish multiple components or structures with the same or similar structures, and do not represent any special limitation on the setting order or connection relationship.

[0021] The present embodiment relates to a fool-proof installation structure of a circular surface sticker, which is used for an inverter, and includes a surface sticker 1, a surface sticker back plate 2 and a surface sticker adhesive 3. The surface sticker back plate 2 is arranged on the inverter casing 10, and the surface sticker adhesive 3 is arranged on the back of the surface sticker 1, so that the surface sticker 1 and the surface sticker back plate 2 are tightly attached and fixed to the casing 10. The surface sticker back plate 2 is provided with a positioning protrusion 21, and the surface sticker adhesive 3 is provided with a matching avoidance notch 31 at the position corresponding to the positioning protrusion 21. The positioning protrusion 21 and the avoidance notch 31 cooperate for positioning, so that the surface sticker 1 and the surface sticker back plate 2 are accurately installed in an aligned manner.

[0022] A positioning protrusion 21 is riveted or punched out on the face sticker back plate 2 on the inverter housing 10, and a matching avoidance notch 31 is provided at the position corresponding to the positioning protrusion 21 of the face sticker back adhesive 3, so that when assembling and installing, the operator only needs to find the positioning protrusion 21 on the face sticker back plate 2 and align it with the avoidance notch 31 of the face sticker back adhesive 3, and then tear off the release paper on the face sticker back adhesive 3, so that the face sticker 1 and the face sticker back plate 2 are aligned and pasted to complete the installation work, which saves a lot of alignment time caused by the face sticker 1 without an anti-fool structure, greatly reduces the rework and scrap rate caused by the face sticker 1 without an anti-fool structure, and protects the integrity of the appearance of the housing 10 and the face sticker 1.

[0023] By setting the positioning convex point 21 on the back plate of the surface sticker 1, the operator can first find the positioning convex point 21 for pre-positioning, determine the installation direction and alignment position, so that when the operator assembles and installs, that is, when the surface sticker adhesive 3 is aligned with the surface sticker back plate 2, the positioning convex point 21 can be accurately inserted into the avoidance notch 31 to achieve precise alignment. It effectively avoids the problems of position deviation, misalignment or rotation of the surface sticker 1, and ensures that the surface sticker 1 can be correctly installed on the back plate of the surface sticker 1.

[0024] By setting the avoidance notch 31 on the surface sticker adhesive 3, it is possible to avoid cutting or processing directly on the surface sticker 1, thereby reducing the risk of damaging the surface sticker 1 itself and affecting the appearance. In addition, the surface sticker adhesive 3 usually has good adhesion performance and can be firmly bonded to the surface sticker back plate 2. At the same time, setting the avoidance notch 31 on the surface sticker adhesive 3 can better control the accuracy of alignment. Because the surface sticker adhesive 3 is thin and flat, it can provide a better alignment reference line and enable the surface sticker 1 to be more accurately aligned with the surface sticker back plate 2.

[0025] Preferably, the positioning protrusion 21 can be any shape, and the shape of the avoidance notch 31 is adapted thereto. In this embodiment, the positioning protrusion 21 is a smooth sphere. In other embodiments, the positioning protrusion 21 can also be a half-shear type cylinder. The positioning protrusion 21 is set as a smooth sphere, which can reduce the friction between the surface patch 1 and reduce the resistance and damage risk during the assembly process. It can better ensure that the positioning protrusion 21 can move and align smoothly in the avoidance notch 31, avoiding difficulties or damage caused by friction.

[0026] The spherical positioning protrusion 21 can also provide better freedom and fault tolerance for the installation of the face patch 1, so that it can achieve accurate alignment in different directions. Compared with other shapes, the smooth spherical positioning protrusion 21 can adapt to different insertion angles more flexibly, thereby improving the accuracy and reliability of alignment. And the positioning protrusion 21 is set as a smooth sphere, which usually has a smaller contact area, which makes it easier to insert and position during installation. At the same time, when the face patch 1 needs to be removed or replaced, the spherical positioning protrusion 21 is also relatively easy to remove from the face patch 1, reducing the risk of breakage or damage that may be caused during the removal process, and facilitating installation and removal by operators.

[0027] The shape of the avoidance notch 31 is correspondingly set to be circular, which can reduce the resistance when the positioning protrusion 21 is inserted into the avoidance notch 31. Compared with other shapes, such as square or sharp-angled notches, the circular design allows the positioning protrusion 21 to be inserted into the avoidance notch 31 more smoothly, reducing the friction and resistance during insertion. At the same time, the circular avoidance notch 31 provides greater freedom and tolerance space, so that the face patch 1 can be fine-tuned within a certain range so that the avoidance notch 31 is aligned with the positioning protrusion 21, making it easier to find the correct position and achieve alignment during insertion, and the operator can complete the alignment task more quickly, thereby improving assembly efficiency and production speed.

[0028] The circular avoidance notch 31 can provide better alignment accuracy, which can help the operator accurately determine the position of the face sticker 1 and align it correctly with the face sticker back plate 2, that is, when the face sticker 1 is aligned with the face sticker back plate 2, the positioning protrusion 21 can be easily inserted into the avoidance notch 31 and maintain the correct alignment relationship. This can avoid the misalignment caused by improper insertion, reduce the risk of error and misalignment, and improve the accuracy of assembly. At the same time, since the circular avoidance notch 31 has no sharp edges or angles, the surface of the face sticker 1 that contacts the positioning protrusion 21 during the installation process is not easily damaged. This can reduce the risk of scratches, wear or damage that may be caused during the assembly process.

[0029] Preferably, the height of the positioning protrusion 21 is less than the thickness of the adhesive backing 3 of the face sticker. This arrangement can ensure that during the installation of the face sticker 1, the positioning protrusion 21 can correctly cooperate with the avoidance notch 31 to achieve accurate position alignment. Interference between the positioning protrusion 21 and the adhesive backing 3 of the face sticker can be avoided, resulting in failure to fully embed or inaccurate alignment. At the same time, it can be ensured that the face sticker 1 can fit tightly against the face sticker back plate 2 when connected, and is completely aligned with the avoidance notch 31. The connection between the face sticker 1 and the face sticker back plate 2 is made more stable and reliable, ensuring the stability and functionality of the face sticker 1 during use. In addition, the height of the positioning protrusion 21 is less than the thickness of the adhesive backing 3 of the face sticker, which can also prevent the positioning protrusion 21 from protruding onto the surface of the adhesive backing 3 of the face sticker, thereby avoiding potential damage or affecting the aesthetics of the face sticker 1.

[0030] Preferably, the position of the positioning convex point 21 can be arranged at the edge of any one of the upper, lower, left and right sides near the center of the face paste back plate 2, so that the alignment position can be clearly marked, so that the operator can quickly and accurately align the face paste 1 with the face paste back plate 2. And the positioning convex point 21 is concentratedly placed at the edge to simplify the alignment process, and the operator only needs to align the face paste 1 with the edge where the positioning convex point 21 is located to achieve accurate alignment, without the need for additional angle and position adjustment. Simultaneously, by placing the positioning convex point 21 at the edge, the alignment error caused by the angle and position deviation can be reduced, and alignment is easier to identify and adjust, and improves assembly efficiency. In the present embodiment, the positioning convex point 21 is arranged at the lower side near the edge of the face paste back plate 2, and can be arranged at the upper, left or right sides in other embodiments.

[0031] Preferably, the surface sticker 1 is made of PC or acrylic sheet. The surface sticker 1 is made of PC or acrylic sheet to provide high transparency, impact resistance, weather resistance, good processing performance and flame retardant performance.

[0032] Preferably, the utility model also provides an inverter, comprising the circular surface sticker installation fool-proof structure as described above.

[0033] The working principle of the utility model is roughly as follows: when the operator wants to install the face sticker 1, first find the positioning protrusions 21 on the face sticker back plate 2 of the inverter housing 10 for pre-positioning, determine the alignment direction and position, then find the avoidance notch 31 on the face sticker back adhesive 3 for alignment and insertion, and then tear off the release paper on the face sticker back adhesive 3, so that the face sticker 1 and the face sticker back plate 2 are aligned and pasted to complete the installation work.

[0034] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A circular surface sticker installation foolproof structure for an inverter, characterized in that: The utility model comprises a face sticker, a face sticker back plate and a face sticker adhesive. The face sticker back plate is arranged on the casing of the inverter. The face sticker adhesive back plate is arranged on the back side of the face sticker so that the face sticker and the face sticker back plate are tightly attached and fixed on the casing. The face sticker back plate is provided with positioning convex points. The face sticker adhesive back plate is provided with matching avoidance notches at positions corresponding to the positioning convex points. The positioning convex points and the avoidance notches cooperate with each other so that the face sticker and the face sticker back plate are accurately aligned and installed.

2. The foolproof installation structure of the circular surface sticker according to claim 1, characterized in that: The height of the positioning protrusion is less than the thickness of the adhesive backing of the surface sticker.

3. The foolproof installation structure of the circular surface sticker according to claim 2, characterized in that: The positioning convex point is arranged at any one of the above, below, left and right of the center of the back plate of the face sticker.

4. The foolproof installation structure of the circular surface sticker according to claim 3, characterized in that: The surface material is PC or acrylic sheet.

5. An inverter, characterized in that: It comprises a fool-proof installation structure for a circular surface sticker as described in any one of claims 1-4.

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