A concealed trim lock structure
The hidden decorative component locking structure and multi-hole design solve the problem of difficult inverter decorative panel installation, achieving a fast and reliable installation by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SIGE DIGITAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-26
AI Technical Summary
The screw fastening points of existing inverter decorative panels are hidden deep inside, making installation difficult, especially when the inverter is close to the ground, making it difficult to visually align the screws and screwdriver.
It adopts a concealed decorative locking structure, including a decorative panel, a first limiting feature and fasteners. Through the non-detachable structure and multiple through holes, it achieves pre-fixation and limiting, making it convenient for screwdriver alignment and tightening.
It solves the problem of screwdriver alignment difficulties when installing decorative panels near the ground, allowing a single person to complete the installation and ensuring the reliability of the locking structure and the accuracy of installation.
Smart Images

Figure CN224419076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inverter component installation technology, and in particular to a hidden decorative component locking structure. Background Technology
[0002] Inverters typically have decorative panels installed at their external connection terminals to conceal PV DC wiring, dongle rods, etc. These panels serve not only an aesthetic purpose of concealing terminals and wiring harnesses but also partially function as wiring harnesses. Due to space and molding limitations, the decorative panels and inverter housing are generally secured with screws. For aesthetic reasons, these screw fastening points are concealed at the overlap between the housing and the panel, i.e., deep within the decorative panel (see...). Figure 1 ).
[0003] Because the screw attachment points are hidden deep within the unit, and due to the influence of other terminals nearby, installing the decorative panel makes it very difficult to use a screwdriver effectively. This is especially true in installation scenarios where the inverter is close to the ground, making it extremely difficult to visually align the screws and screwdriver.
[0004] Therefore, this application proposes a fixed connection structure for inverter decorative panels to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a hidden decorative component locking structure to solve the problem of difficult operation of hidden locking points, thereby making it easier for operators to lock and fix the decorative panel.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] A concealed decorative element locking structure includes a decorative panel, wherein the decorative panel has a locking end and an outer edge end along its width direction, and the locking end is provided with a fixing hole, and further includes:
[0008] A first limiting feature is provided on the side of the fixing hole near the outer edge end, and the first limiting feature has at least two through holes coaxial with the fixing hole;
[0009] The fastener has one end set inside the fixing hole and forming a non-detachable structure therewith, and the other end extends toward the through hole.
[0010] In an alternative embodiment, the first limiting feature includes at least two side-by-side limiting plates, each of which has one through hole.
[0011] In an alternative embodiment, the first limiting feature is integrally formed with the decorative panel.
[0012] In an alternative embodiment, the decorative panel has a second limiting feature along its length at the locking end, the second limiting feature being used to match the target housing.
[0013] In an alternative embodiment, the second limiting feature is a plurality of protrusions arranged at intervals.
[0014] In an alternative embodiment, the decorative panel is provided with a wire harness.
[0015] In an optional embodiment, the fastener is a screw; in the unlocked state, one end of the screw forms a non-detachable structure with the fixing hole, and the other end protrudes from the outer edge after passing through each through hole.
[0016] In an alternative embodiment, one end of the screw is provided with a threaded section and a stepped section; wherein the diameter of the threaded section is larger than the diameter of the fixing hole, the diameter of the stepped section is less than or equal to the diameter of the fixing hole, but the length of the stepped section is greater than the length of the fixing hole.
[0017] In an alternative configuration, the screw is concealed within the decorative panel in the locked state.
[0018] In an alternative embodiment, the fastener is a captive screw; in the unlocked state, the captive screw is positioned between the fixing hole and the first limiting feature.
[0019] Compared with the prior art, the beneficial effects of this utility model include at least the following:
[0020] 1. By pre-fixing the fasteners and decorative panels into a non-detachable structure, and with the assistance of multiple through holes for limiting, the problem of screwdriver alignment difficulties in installing decorative panels near the ground is solved, and the installation work can be carried out by a single person.
[0021] 2. The first limiting feature can be used to limit the screw, thereby ensuring the reliability of the corresponding locking structure under overall vibration test and external force interference damage; it can also be used to guide the screwdriver, thereby ensuring accurate alignment and facilitating locking operations. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of how decorative panels and inverter enclosures are fastened with screws in the existing technology.
[0023] Figure 2 This is a structural schematic diagram of the decorative panel locking end of a utility model.
[0024] Figure 3 This is a schematic diagram of the internal structure of a decorative panel of a utility model.
[0025] Figure 4This is a schematic diagram of the hidden decorative element locking structure of Embodiment 1.
[0026] Figure 5 This is a schematic diagram of the hidden decorative element locking structure of Embodiment 1 from another perspective.
[0027] Figure 6 This is a schematic diagram of the screw structure in Example 1.
[0028] Figure 7 This is a schematic diagram of the hidden decorative element locking structure of Embodiment 2.
[0029] In the diagram: 1. Decorative panel; 11. Locking end; 12. Outer edge end; 1a. Fixing hole;
[0030] 2. First limiting feature; 21. Limiting plate; 2a. Through hole;
[0031] 3. Fasteners; 31. Threaded section; 32. Stage;
[0032] 4. Second limiting feature; 41. Protrusion;
[0033] 5. Cable harnesses;
[0034] 6. Inverter enclosure. Detailed Implementation
[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.
[0036] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.
[0037] See Figures 2 to 7 As shown, this utility model discloses a hidden decorative component locking structure, including a decorative panel 1, a first limiting feature 2, and a fastener 3.
[0038] like Figure 2 As shown, the decorative panel 1 is provided with a locking end 11 and an outer edge end 12 along the width direction, and the locking end 11 is provided with a fixing hole 1a. This hole can be connected to the target enclosure (such as the inverter enclosure 6) through the fastener 3, so that the decorative panel 1 is fixed to cover the wiring, terminals, etc., and beautify the appearance.
[0039] Continue as Figure 3 As shown, the first limiting feature 2 is disposed on the side of the fixing hole 1a near the outer edge 12, and the first limiting feature 2 has at least two through holes 2a coaxial with the fixing hole 1a. In this application, the first limiting feature 2 includes at least two side-by-side limiting plates 21, each limiting plate 21 having a through hole 2a. In this limiting feature, the through hole 2a can be used to limit the installation of the fastener 3, thereby reducing harmful shaking of the fastener 3 and enhancing its stability. In addition, the through hole 2a can also be used to guide the screwdriver, so that it can be precisely aligned with the fastener 3 after being inserted into the decorative panel 1.
[0040] Figure 4 and Figure 7 In this design, one end of the fastener 3 is set inside the fixing hole 1a and forms a non-detachable structure with it. This allows the fastener 3 to be pre-fixed with the decorative panel 1, thereby reducing on-site assembly work and facilitating the installation of the decorative panel 1.
[0041] The other end of the fastener 3 extends toward the through hole 2a to facilitate alignment with a screwdriver. For example, in this application, the fastener 3 includes two forms: a long and a short type, which can be a screw and a captive screw, respectively.
[0042] Example 1
[0043] See Figure 4 and Figure 5 As shown, in this example, fastener 3 is a screw. In the unlocked state, one end of the screw forms a non-detachable structure with the fixing hole 1a, while the other end protrudes from the outer edge 12 after passing through each through hole 2a. It should be noted that the screw only needs to protrude slightly from the outer edge 12 of the decorative panel 1, for example, 5mm-15mm. This allows the operator to see the screw from the front or side even in near-ground installation scenarios, facilitating quick alignment of the screwdriver with the screw (the exposed end of the screw has an internal hexagonal, Phillips, or slotted head). Furthermore, in the locked state, the screw can move towards the fixing hole 1a until it is completely hidden within the decorative panel 1, ensuring an aesthetically pleasing finish after installation.
[0044] like Figure 6 As shown, the screw described above has a threaded section 31 and a stepped section 32 at one end. The threaded section 31 is located in front of the stepped section 32, and the diameter of the threaded section 31 is larger than the diameter of the fixing hole 1a. The diameter of the stepped section 32 is less than or equal to the diameter of the fixing hole 1a, and the length of the stepped section 32 is greater than the length of the fixing hole 1a. This dimensional design allows the stepped section 32 to slide axially within the fixing hole 1a, but it is restricted in front and behind by the threaded section 31 and the screw itself, thus forming a non-detachable structure with the decorative panel 1. The threaded section 31, under the action of a screwdriver, achieves a locking connection with the corresponding locking position of the target housing.
[0045] Example 2
[0046] See Figure 7 As shown, in this example, fastener 3 is a captive screw. In the unlocked state, the captive screw is positioned between the fixing hole 1a and the first limiting feature 2. It should be noted that the captive screw is relatively short, and its stability is good after connecting to the fixing hole 1a. Although the operator cannot observe the captive screw in a near-ground installation scenario, the design of multiple through holes 2a can limit and guide the screwdriver inserted into them, allowing it to quickly and accurately align with the captive screw, facilitating installation.
[0047] In summary, this locking structure pre-fixes the fastener 3 and the decorative panel 1 into a non-detachable structure, and with the assistance of multiple through holes 2a, it solves the problem of difficult screwdriver alignment when installing the decorative panel 1 in a near-ground scenario, and the installation can be carried out by a single person.
[0048] In addition, the first limiting feature 2 can be used to limit the screw, thereby ensuring the reliability of the corresponding locking structure under overall vibration test and external force interference damage, and can also be used to guide the screwdriver, thereby ensuring accurate alignment and facilitating the locking operation.
[0049] See Figure 2 As shown, in some embodiments, there are two fixing holes 1a, which are respectively set on both sides of the length direction of the decorative panel 1 to ensure the stability and firmness of the decorative panel 1 after it is connected to the box body.
[0050] In some embodiments, the first limiting feature 2 is integrally formed with the decorative panel 1.
[0051] See Figure 1 and Figure 2 As shown, in some embodiments, the decorative panel 1 is provided with a second limiting feature 4 at the locking end 11 along the length direction. The second limiting feature 4 is located between two fixing holes 1a and is used to match the target box body, playing a role in installation limiting and auxiliary reinforcement of the decorative panel 1.
[0052] As an example, the second limiting feature 4 consists of multiple spaced protrusions 41. Correspondingly, the mating side of the target housing may be provided with multiple spaced holes (not shown), thereby limiting the decorative panel 1 to the target housing, and then locking it in place by fasteners 3.
[0053] See Figure 3 As shown, in some embodiments, a wire harness 5 is provided inside the decorative panel 1 to bind the wire harness and prevent it from being exposed and affecting the aesthetics.
[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.
Claims
1. A concealed trim locking structure comprising a trim panel (1) provided with a locking end (11) and an outer edge end (12) in the width direction, respectively, and the locking end (11) is provided with a fixing hole (la), characterized in that, Also includes: The first limiting feature (2) is disposed on the side of the fixing hole (1a) near the outer edge end (12), and the first limiting feature (2) has at least two through holes (2a) coaxial with the fixing hole (1a). The fastener (3) has one end disposed in the fixing hole (1a) and forms a non-detachable structure therewith, and the other end extends toward the through hole (2a).
2. The concealed trim lock structure according to claim 1, wherein The first limiting feature (2) includes at least two side-by-side limiting plates (21), each of the limiting plates (21) having a through hole (2a).
3. The concealed trim fastening structure according to claim 1, wherein The first limiting feature (2) is integrally formed with the decorative panel (1).
4. The concealed trim fastening structure according to claim 1, wherein The decorative panel (1) has a second limiting feature (4) along its length at the locking end (11), the second limiting feature (4) being used to match the target box.
5. The concealed trim fastener structure according to claim 4, wherein The second limiting feature (4) is a plurality of protrusions (41) arranged at intervals.
6. The concealed trim fastening structure according to claim 1, wherein The decorative panel (1) is provided with a wire harness (5).
7. The concealed trim fastener structure according to any one of claims 1-6, wherein, The fastener (3) is a screw; in the non-locking state, one end of the screw forms a non-detachable structure with the fixing hole (1a), and the other end protrudes from the outer edge end (12) after passing through each through hole (2a).
8. The concealed trim fastener structure of claim 7, wherein, One end of the screw is provided with a threaded section (31) and a stepped section (32). The diameter of the threaded section (31) is greater than the diameter of the fixed hole (1a), the diameter of the stepped section (32) is less than or equal to the diameter of the fixed hole (1a), but the length of the stepped section (32) is greater than the length of the fixed hole (1a).
9. The concealed trim fastener structure of claim 7, wherein, In the locked state, the screw is hidden inside the decorative panel (1).
10. The concealed trim fastener structure of any of claims 1-6, wherein, The fastener (3) is a non-detachable screw; in the non-locked state, the non-detachable screw is located between the fixing hole (1a) and the first limiting feature (2).