A package structure and a programmable controller

Abstract

This application discloses a packaging box structure and a programmable controller, relating to the technical field of programmable controllers. The packaging box structure includes a housing, a light guide module, and a cover. The light guide module is snapped and fixed inside the housing, and the cover is snapped and fixed to the housing and can cover the light guide module; the cover is a brown transparent structure. In this application, the cover allows observation of the light guide on the light guide module, while also filtering out glaring light, and making the entire packaging box structure cleaner and more aesthetically pleasing.

Description

Technical Field

[0001] This utility model relates to the technical field of programmable controllers, specifically to a packaging box structure and a programmable controller. Background Technology

[0002] A programmable logic controller (PLC), often abbreviated as PC or PLC, is a microprocessor-based digital controller used for automation control. It can load control instructions into memory for storage and execution. It mainly consists of a CPU, instruction and data memory, input / output interfaces, power supply, and digital-to-analog converters. Existing PLC packages typically expose the light guide module, resulting in poor overall aesthetics and glaring light emitted from the light guide. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a packaging box structure and a programmable controller.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] An encapsulation box structure includes a housing, a light guide module, and a cover. The light guide module is snapped and fixed inside the housing, and the cover is snapped and fixed inside the housing and can cover the light guide module. The cover is a brown transparent structure.

[0006] Optionally, the sealing surface is frosted.

[0007] Optionally, the housing has a width direction, a length direction, and a height direction; the housing includes an upper housing and a lower housing, which are detachably snapped together; the upper housing includes a support plate and a mounting plate, two mounting plates are provided and respectively arranged on both sides of the support plate in the width direction, and the support plate has a mounting cavity for mounting the light guide column module, the mounting cavity extending to the side wall of the support plate;

[0008] The mounting plate is provided with a first snap-fit ​​strip protruding towards the cavity, and the outer wall of the light guide column module is provided with a second snap-fit ​​strip, the lower edge of the second snap-fit ​​strip being able to abut against the upper edge of the first snap-fit ​​strip;

[0009] The cover is symmetrically provided with a first hook along the width direction. The first hook has elastic deformation capability and can be inserted into the mounting cavity from top to bottom and fastened to the lower edge of the mounting plate.

[0010] The cover and light guide module are configured such that: the cover is inserted into the upper housing from top to bottom so that the first hook can be fastened to the lower end face of the mounting plate; the light guide module is inserted into the cavity from bottom to top so that the second snap-fit ​​strip is fastened to the first snap-fit ​​strip; at this time, along the width direction of the housing, the distance between the first hook and the side wall of the light guide module is less than the distance between the first hook and the lower end face of the mounting plate.

[0011] Optionally, the first snap-fit ​​strip is provided with a first guide surface, which is inclined from bottom to top toward the center of the cavity.

[0012] Optionally, the second snap-fit ​​strip is provided with a second guide surface, which is inclined from bottom to top toward the center of the guide light column module.

[0013] Optionally, the cover has a stop edge extending downwards along its periphery, the lower edge of the stop edge being able to abut against the first snap-fit ​​strip, and the stop edge having a notch to accommodate the second snap-fit ​​strip.

[0014] Optionally, a second hook is provided at each end of the cap along its length, and the upper housing is provided with a corresponding slot for the second hook to engage.

[0015] Optionally, the cover is provided with an identifier, which corresponds one-to-one with the light guide column on the light guide column module.

[0016] A programmable controller includes the aforementioned package structure.

[0017] The technical solution provided by this utility model has the following beneficial effects: the cover is set as a brown transparent structure, which not only allows the light of the light guide column on the light guide column module to be observed, but also filters out glaring light, and makes the entire encapsulation box structure cleaner and more beautiful; the surface of the cover is frosted, which can further improve the light filtering effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this embodiment.

[0019] Figure 2 This is an exploded view of the upper shell, light guide module, and cover in this embodiment;

[0020] Figure 3 This is a cross-sectional view showing the positional relationship between the first hook, the light guide module, and the mounting plate in this embodiment;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5This is a cross-sectional view showing the positional relationship between the first and second snap-fit ​​strips in this embodiment;

[0023] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 This is a cross-sectional view showing the positional relationship between the retaining edge and the first snap-fit ​​strip in this embodiment;

[0025] Figure 8 yes Figure 7 Enlarged diagram of point C in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Light guide module; 21. Second snap-fit ​​strip; 211. Second guide surface; 3. Cover; 31. First hook; 32. Second hook; 33. Edge; 34. Notch; 4. Upper housing; 41. Mounting plate; 411. First snap-fit ​​strip; 412. First guide surface; 413. Slot; 42. Support plate; 43. Cavity; 5. Lower housing. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0029] Reference Figure 1 and Figure 2 This embodiment provides a packaging box structure, including a housing 1, a light guide module 2, and a cover 3. The light guide module 2 is snapped and fixed inside the housing 1, and the cover 3 is snapped and fixed to the housing 1 and can cover the light guide module 2. The cover 3 is a brown transparent structure. This design not only allows observation of the light guide on the light guide module 2, but also filters the light, making the entire packaging box structure cleaner and more aesthetically pleasing. In other embodiments, the cover can also be other colors.

[0030] Furthermore, the surface of the cover 3 is frosted, which can further improve the light filtering effect.

[0031] Specifically, refer to Figure 2-6The housing 1 includes an upper housing 4 and a lower housing 5, and the entire housing 1 has a cuboid structure. The housing 1 has mutually perpendicular length directions (X), width directions (Y), and height directions (Z). The upper housing 4 and the lower housing 5 are detachably snap-fitted together. The upper housing 4 includes a support plate 42 and a mounting plate 41. Two mounting plates 41 are provided and respectively arranged on both sides of the support plate 42 in the width direction. The support plate 42 is in a recessed position relative to the mounting plate 41, and the cross-sections of the support plate 42 and the mounting plate 41 form a U-shaped structure. A cavity 43 for mounting the light guide column module 2 is formed on the support plate 42. The cavity 43 extends to the side wall of the support plate 42. In this embodiment, two cavities 43 are arranged at intervals.

[0032] The inner walls of the two mounting plates 41 have protrusions with first retaining strips 411, and the mounting plates 41 have a certain elastic deformation capability. The outer walls of the light guide module 2 have protrusions with second retaining strips 21. Utilizing the elastic deformation of the mounting plates 41, the light guide module 2 can be inserted into the cavity 43 from bottom to top, so that the second retaining strip 21 can pass over the first retaining strip 411, and the lower edge of the second retaining strip 21 can abut against the upper edge of the first retaining strip 411.

[0033] The cover 3 has symmetrically arranged first hooks 31 on both sides in the width direction. The first hooks 31 have elastic deformation capability. First locking strips 411 are arranged at intervals, and a clearance area is formed between two adjacent first locking strips 411. The first hooks 31 can be inserted into the clearance area from top to bottom and fastened to the lower edge of the mounting plate 41. In this embodiment, the entire cover 3 is made of light-transmitting plastic material with a certain elastic deformation capability.

[0034] The cover 3 and the light guide module 2 are configured such that the cover 3 is inserted into the upper housing 4 from top to bottom so that the first hook 31 can be fastened to the lower end face of the mounting plate 41; then the light guide module 2 is inserted into the cavity 43 from bottom to top so that the second snap-fit ​​strip 21 is fastened to the first snap-fit ​​strip 411; at this time, without the action of external force, along the width direction of the housing 1, the distance L1 between the first hook 31 and the side wall of the light guide module 2 is less than the distance L2 between the first hook 31 and the lower end face of the mounting plate 41.

[0035] Thus, the cover 3 is difficult to remove directly from the upper housing 4, ensuring the installation stability between the cover 3 and the housing 1. When disassembly is required, since both the cover 3 and the mounting plate 41 have a certain elastic deformation capability, tools can be used to widen the distance between one side wall of the light guide module 2 and the mounting plate 41, so that the distance between the first hook 31 and the side wall of the light guide module 2 is not less than the distance between the first hook 31 and the lower end face of the mounting plate 41, thereby allowing the first hook 31 to detach from the light guide module 2 and the mounting plate 41.

[0036] Furthermore, refer to Figure 6The first snap-fit ​​strip 411 is provided with a first guide surface 412, which is inclined from bottom to top toward the center of the cavity 43; thus, it is convenient for the second snap-fit ​​strip 21 to be squeezed into the cavity 43 along the first guide surface 412.

[0037] Furthermore, refer to Figure 6 The second snap-fit ​​strip 21 is also provided with a second guide surface 211, which is inclined from bottom to top toward the center of the guide light column module 2. Through the cooperation of the second guide surface 211 and the first guide surface 412, the second snap-fit ​​strip 21 can be squeezed into the cavity 43 more easily from bottom to top.

[0038] Furthermore, refer to Figure 7 and Figure 8 The cover has a retaining edge 33 extending downwards along its three sides. The lower edge of the retaining edge 33 can abut against the first snap-fit ​​strip 411, and the retaining edge 33 has a notch 34 to allow the second snap-fit ​​strip 21 to pass. The retaining edge 33 can cover the light guide module 2, providing better protection.

[0039] Furthermore, the cover 3 is provided with second hooks 32 at both ends in the length direction. The second hooks 32 have elastic deformation capacity, and the support plate 42 is provided with corresponding slots 413 for the second hooks 32 to engage. In this way, hook structures are provided at the edges in both the length and width directions of the cover 3, which makes the engagement between the cover 3 and the upper housing 4 more secure.

[0040] Furthermore, the upper surface of the cover 3 is provided with markings (not shown in the figure), each marking corresponding to a light guide column on the light guide column module 2, which can quickly identify the brightness of each light guide column on the light guide column module 2.

[0041] This embodiment also provides a programmable controller, including the above-described package structure.

[0042] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A package box structure, characterized by: The device includes a housing, a light guide module, and a cover. The light guide module is snapped and fixed inside the housing, and the cover is snapped and fixed inside the housing and can cover the light guide module. The cover is a brown transparent structure. The housing has a width direction, a length direction, and a height direction; the housing includes an upper housing and a lower housing, which are detachably snapped together; the upper housing includes a support plate and a mounting plate, two mounting plates are provided and respectively arranged on both sides of the support plate in the width direction, and the support plate has a cavity for mounting the light guide column module, the cavity extending to the side wall of the support plate; The mounting plate is provided with a first snap-fit ​​strip protruding towards the cavity, and the outer wall of the light guide column module is provided with a second snap-fit ​​strip, the lower edge of the second snap-fit ​​strip being able to abut against the upper edge of the first snap-fit ​​strip; The cover is symmetrically provided with a first hook along the width direction. The first hook has elastic deformation capability and can be inserted into the cavity from top to bottom and fastened to the lower edge of the mounting plate. The cover and light guide module are configured such that: the cover is inserted into the upper housing from top to bottom so that the first hook can be fastened to the lower end face of the mounting plate; the light guide module is inserted into the cavity from bottom to top so that the second snap-fit ​​strip is fastened to the first snap-fit ​​strip; at this time, along the width direction of the housing, the distance between the first hook and the side wall of the light guide module is less than the distance between the first hook and the lower end face of the mounting plate.

2. The packaging structure of claim 1, wherein: The surface of the cap is frosted.

3. The packaging box structure according to claim 1, characterized in that: The first snap-fit ​​strip is provided with a first guide surface, which is inclined from bottom to top toward the center of the cavity.

4. The packaging box structure according to claim 1, characterized in that: The second snap-fit ​​strip is provided with a second guide surface, which is inclined from bottom to top toward the center of the guide light column module.

5. The packaging box structure according to claim 1, characterized in that: The cover has a stop edge extending downwards along its periphery. The lower edge of the stop edge can abut against the first snap-fit ​​strip, and the stop edge has a notch to allow the second snap-fit ​​strip to pass.

6. The packaging box structure according to claim 1, characterized in that: The cap is provided with a second hook at each end along its length, and the upper housing is provided with a corresponding slot for the second hook to engage.

7. The packaging box structure according to claim 1, characterized in that: The cover is marked with an identifier, which corresponds to the light guide column on the light guide column module.

8. A programmable controller, characterized in that: Includes the encapsulation box structure described in any one of claims 1-7.

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