Electronic shelf label housing

Abstract

The utility model provides a kind of electronic shelf label shell, it includes: rear shell, battery accommodating space is equipped in the rear shell;Battery rear cover, the battery rear cover is connected with the rear shell to seal the battery accommodating space;Wherein, the side of the rear shell towards the battery rear cover is equipped with welding ring groove, the side of the battery rear cover towards the rear shell is equipped with welding convex ring, the welding convex ring is inserted in the welding ring groove;The side of the welding convex ring close to the welding ring groove has first ultrasonic part;The side of the welding ring groove close to the welding convex ring has second ultrasonic part, the first ultrasonic part and the second ultrasonic part are welded connection.The utility model can solve the poor sealing effect and the problem of difficult disassembly of the sealing structure of the battery cover of the current electronic shelf label, connect battery cover and rear shell by shearing type ultrasonic welding sealing, meet the battery detachable demand, can reach IP68 waterproof requirement simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of waterproof sealing technology for electronic devices, and in particular to an electronic shelf label housing. Background Technology

[0002] Electronic shelf labels are electronic display devices placed on shelves that can replace traditional material shelf labels. They can display and be updated at any time with information such as product name, specifications, unit, grade, current label, original price, reason for promotion, promotional logo, promotion time, and display information. The application of electronic shelf labels in the retail industry simplifies changing product prices and reduces paper and ink consumption as well as labor costs. By using electronic shelf labels to easily and quickly change product prices, the overall appearance of shelves can be kept new and attractive, and retailers can use price updates to promote sales.

[0003] However, existing electronic shelf label battery covers use sealing rings and double-sided adhesive for waterproofing, which offers relatively poor sealing and cannot meet the requirements of high-humidity environments (such as fresh produce shelves or supermarket freezers). Furthermore, they cannot be wiped or rinsed with wet materials, significantly limiting the application range of electronic shelf labels and failing to meet the IP68 waterproof requirement (tested at a depth of 1 meter for 2 hours). In addition, the existing direct-adhesion sealing method makes battery cover removal relatively difficult, thus preventing the batteries inside the electronic shelf label from being removable. Utility Model Content

[0004] The purpose of this utility model is to provide an electronic shelf label housing that solves the problems of poor sealing effect and difficult disassembly of the current electronic shelf label battery cover sealing structure. The battery cover and the back shell are connected by shear-type ultrasonic welding to meet the requirements of battery removability and can also meet the IP68 waterproof requirement.

[0005] The above-mentioned technical objectives of this utility model are mainly achieved through the following technical solutions.

[0006] This utility model provides an electronic shelf label housing, which includes:

[0007] The rear cover has a battery housing space inside;

[0008] A battery back cover, which is connected to the rear shell to seal the battery housing space;

[0009] The rear shell has a welding ring groove on the side facing the battery rear cover, and the battery rear cover has a welding protrusion on the side facing the rear shell, with the welding protrusion inserted into the welding ring groove.

[0010] The welding protrusion has a first ultrasonic section on the side near the welding ring groove; the welding ring groove has a second ultrasonic section on the side near the welding protrusion, and the first ultrasonic section and the second ultrasonic section are welded together. In a preferred embodiment of the present invention, an overflow adhesive area is provided between the welding protrusion and the welding ring groove, so that at least part of the molten adhesive formed during the ultrasonic welding process flows into the overflow adhesive area.

[0011] In a preferred embodiment of the present invention, at least one of the first ultrasonic part and the second ultrasonic part has an angular structure or a rounded structure.

[0012] In a preferred embodiment of the present invention, the welding ring groove is provided with a welding step, and at least a portion of the welding step forms the second ultrasonic part.

[0013] In a preferred embodiment of the present invention, an ultrasonic limiting rib is further provided in the welding ring groove, and the welding protrusion is disposed between the ultrasonic limiting rib and the welding step to limit the movement of the connecting protrusion welding protrusion in the lateral direction.

[0014] In a preferred embodiment of this utility model, the ultrasonic limiting rib and the welded protruding ring have a limiting rib gap in the transverse direction, and the width of the limiting rib gap is 0.05mm.

[0015] In a preferred embodiment of the present invention, the first ultrasonic part and the second ultrasonic part are ultrasonically welded by shearing, and the first ultrasonic part or the second ultrasonic part forms a shearing ultrasonic welding part; along the depth direction of the welding ring groove, the length Z of the shearing ultrasonic welding part is 0.3mm~0.6mm, and along the width direction of the welding ring groove, the width Y of the shearing ultrasonic welding part is 0.2mm~0.4mm.

[0016] In a preferred embodiment of the present invention, the battery back cover is provided with at least one limiting protrusion on the side facing the rear shell, and the limiting protrusion is located outside the welding protrusion ring; when the rear shell and the battery back cover are welded together, the limiting protrusion abuts against the rear shell.

[0017] In a preferred embodiment of the present invention, a battery disassembly portion is provided on one side edge of the battery back cover, and a battery disassembly opening is provided on the back shell corresponding to the battery disassembly portion. The battery disassembly portion is located inside the battery disassembly opening and at least partially protrudes outward from the side wall of the back shell.

[0018] In a preferred embodiment of the present invention, the battery back cover has a protruding abutment on the side facing the rear shell, the abutment being used to press down the battery spring located in the battery receiving space.

[0019] In a preferred embodiment of the present invention, the battery back cover has a recessed area on the side facing the rear shell, the recessed area is used to avoid the battery spring, and the abutment part is located in the recessed area.

[0020] Compared with the prior art, the technical solution of this utility model has the following features and advantages:

[0021] 1. It meets the requirement of being detachable and can achieve IP68 waterproof rating.

[0022] 2. It is easy to assemble and has high stability, which can reduce material costs and assembly costs.

[0023] 3. High reliability: Ultrasonic welding fuses the two sealing components into one, increasing their strength. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0026] Figure 1 This is a schematic diagram of the structure of the electronic shelf label described in this utility model;

[0027] Figure 2 This is a top view of the electronic shelf label of this utility model;

[0028] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0029] Figure 4 This is a schematic diagram of the structure of the rear shell described in this utility model;

[0030] Figure 5 This is a top view of the rear shell structure of the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the BB direction;

[0032] Figure 7 This is a schematic diagram of the structure of the battery back cover of this utility model;

[0033] Figure 8 This is a top view of the battery rear cover of the present invention.

[0034] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure along the CC direction;

[0035] Figure 10 for Figure 4 A magnified schematic diagram of the structure of part D in the middle;

[0036] Figure 11 for Figure 3 A magnified schematic diagram of a portion of the structure at point E;

[0037] Figure 12 for Figure 6 A magnified schematic diagram of the middle F section;

[0038] Figure 13 for Figure 9 A magnified schematic diagram of the structure of part G in the middle.

[0039] Explanation of reference numerals in the attached figures:

[0040] 12. First ultrasound section;

[0041] 22. Second ultrasonic section; 23. Ultrasonic limiting rib;

[0042] 30. Glue overflow area; 31. Shear ultrasonic welded section;

[0043] 40. Rear cover; 41. Welding ring groove; 42. Battery removal port;

[0044] 50. Battery back cover; 51. Welding protrusion; 52. Limiting protrusion; 53. Battery disassembly part; 54. Abutment part; 55. Recessed area;

[0045] 60. Electronic shelf label housing. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0047] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] In one embodiment, the present invention provides an electronic shelf label housing 60, such as... Figures 1 to 13 As shown, it includes: a rear shell 40, with a battery housing space inside the rear shell 40; a battery rear cover 50, which is connected to the rear shell 40 to seal the battery housing space; wherein, the rear shell 40 has a welding ring groove 41 on the side facing the battery rear cover 50, and the battery rear cover 50 has a welding protrusion 51 on the side facing the rear shell 40, the welding protrusion 51 being inserted into the welding ring groove 41; the welding protrusion 51 has a first ultrasonic part 12 on the side near the welding ring groove 41; the welding ring groove 41 has a second ultrasonic part 22 on the side near the welding protrusion 51, and the first ultrasonic part 11 and the second ultrasonic part 22 are welded together.

[0050] The electronic shelf label housing 60 of this utility model uses ultrasonic welding to fuse the welded annular groove 41 and the welded protruding ring 51 into one piece, achieving a sealed and waterproof assembly between the back shell 40 and the battery back cover 50. This method is highly reliable, simple to assemble, and has high stability, which can reduce material and assembly costs. At the same time, it can meet the disassembly requirements of the battery back cover and also achieve the IP68 waterproof requirement.

[0051] The electronic shelf label housing 60 has a rear housing 40, such as Figures 4-6 , Figure 10 , Figure 12 As shown, the interior of the rear cover 40 forms an installation space for installing the battery. A rear cover mounting groove is formed on the rear cover 40, the shape of which is adapted to the shape of the battery rear cover 50. In this embodiment, the rear cover mounting groove is a rectangular groove.

[0052] like Figure 4 and Figure 10 As shown, a welding ring groove 41 is provided at the bottom edge of the rear cover mounting groove. The extension direction of the welding ring groove 41 on the rear shell 40 can be set according to actual needs, for example, the extension direction of the welding ring groove 41 can be selected according to the shape of the rear cover mounting groove; in this embodiment, the extension direction of the welding ring groove 41 is a racetrack-shaped structure. Figure 5 , Figure 6 and Figure 12 As shown, the welding annular groove 41 is recessed downward from the upper surface of the rear shell in a direction away from the battery rear cover, and the cross-sectional shape of the welding annular groove 41 along the extending direction is rectangular or other shapes.

[0053] The electronic shelf label housing 60 has a battery back cover 50, such as Figures 7-9 , Figure 13 As shown, a welding protrusion 51 corresponding to the welding groove 41 is provided on the inner side of the battery back cover 50. The extension direction of the welding protrusion 51 on the battery back cover 50 can be set according to actual needs, for example, the extension direction of the welding protrusion 51 can be selected according to the shape of the battery back cover 50; in this embodiment, the extension direction of the welding protrusion 51 is a racetrack-shaped structure. The cross-sectional shape of the welding protrusion 51 along the extension direction is rectangular or other shapes.

[0054] Furthermore, since the welding protrusion 51 and the welding groove 41 need to be plugged in and ultrasonically welded, the cross-sectional shape of the connecting protrusion 11 and the cross-sectional shape of the groove 21 are the same or similar.

[0055] In order to weld the rear cover 40 to the battery rear cover 50, such as Figure 13 As shown, the welding protrusion 51 on the battery back cover 50 has a first ultrasonic section 12 on the side near the welding ring groove 41; in this embodiment, the lower left corner edge of the welding protrusion 51 serves as the first ultrasonic section 12. The material of the first ultrasonic section 12 is a material capable of ultrasonic welding (usually thermoplastic), and no specific limitation is made here. Figure 12 As shown, the welding ring groove 41 on the rear shell 40 has a second ultrasonic section 22 on the side near the welding protrusion 51; in this embodiment, a welding step is provided on one side wall of the welding ring groove 41, and at least a portion of the welding step forms the second ultrasonic section 22. The material of the welding step at the second ultrasonic section 22 is a material capable of ultrasonic welding (usually thermoplastic), which is not specifically limited here.

[0056] like Figures 1 to 3 , Figure 11 As shown, with the rear shell 40 and the battery rear cover 50 sealed together, the welding protrusion 51 extends into the welding ring groove 41 and abuts against the welding ring groove 41. The main abutting parts are the first ultrasonic part 12 and the second ultrasonic part 22, which are obliquely opposite each other. The first ultrasonic part 12 and the second ultrasonic part 22 can melt and connect under ultrasonic vibration, thereby achieving a sealed and waterproof connection between the rear shell 40 and the battery rear cover 50.

[0057] According to one embodiment of the present invention, such as Figure 11 As shown, an overflow area 30 is provided between the welding protrusion 51 and the welding ring groove 41, so that at least part of the molten adhesive formed during the ultrasonic welding process flows into the overflow area 30. The overflow area 30 is provided to receive the molten adhesive flowing downwards, thereby ensuring the aesthetic appearance of the rear shell 40 after welding.

[0058] According to one embodiment of the present invention, such as Figures 11 to 13 As shown, the first ultrasonic unit 12 has a rounded corner structure, and the second ultrasonic unit 22 has an angular structure. In other embodiments, the first ultrasonic unit 12 has an angular structure, and the second ultrasonic unit 22 has a rounded corner structure; or, both the first ultrasonic unit 12 and the second ultrasonic unit 22 have angular structures; or, both the first ultrasonic unit 12 and the second ultrasonic unit 22 have rounded corner structures.

[0059] According to one embodiment of the present invention, such as Figure 4 , Figure 10 , Figure 11 and Figure 12 As shown, the welding ring groove 41 is also provided with an ultrasonic limiting rib 23, and the welding protrusion 51 is disposed between the ultrasonic limiting rib 23 and the welding step. The ultrasonic limiting rib 23 is used to limit the movement of the welding protrusion 51 in the lateral direction.

[0060] Specifically, such as Figure 10 and Figure 11 As shown, the ultrasonic limiting rib 23 is provided on the inner wall of the welding ring groove 41. The ultrasonic limiting rib 23 protrudes outward from the inner wall of the welding ring groove 41. The outer wall of the welding ring groove 41 and the ultrasonic limiting rib 23 are located on both sides of the welding convex ring 51, thereby limiting its movement in the lateral direction. Figure 11 The movement is in the left and right directions shown in the figure; preferably, along the extension direction of the welding ring groove 41, multiple ultrasonic limiting ribs 23 are provided at intervals on the inner sidewall of the welding ring groove 41. The ultrasonic limiting ribs 23 play a certain limiting role on the connecting protrusion 11, thereby preventing the first sealing element 10 from shifting back and forth and left and right when ultrasonically vibrating, and ensuring the quality of ultrasonic welding.

[0061] Furthermore, such as Figure 11 As shown, the ultrasonic limiting rib 23 and the welded protruding ring 51 have a limiting rib gap in the transverse direction. The width X of the limiting rib gap is 0mm-0.1mm, where 0mm is a tight fit. It can be selected as 0.025mm, 0.05mm or 0.075mm, with 0.05mm being preferred.

[0062] According to one embodiment of the present invention, such as Figure 11 As shown, the first ultrasonic section 12 and the second ultrasonic section 22 perform ultrasonic welding using a shearing method. The second ultrasonic section 22 on the rear cover 40 has a shearing ultrasonic welding section 31. The length Z of the shearing ultrasonic welding section 31 is 0.3mm to 0.6mm along the depth direction of the welding annular groove 41, and the width Y of the shearing ultrasonic welding section 31 is 0.2mm to 0.4mm along the width direction of the welding annular groove 41. In other embodiments, the shearing ultrasonic welding section 31 may also be provided on the first ultrasonic section 12 of the battery rear cover 50.

[0063] According to one embodiment of the present invention, such as Figure 7 , Figure 11 and Figure 13 As shown, the battery back cover 50 is provided with at least one limiting protrusion 52 on the side facing the back shell 40. The limiting protrusion 52 is located outside the welding protrusion ring 51. When the back shell 40 and the battery back cover 50 are welded together, the limiting protrusion 52 abuts against the back shell 40. In this embodiment, a limiting protrusion 52 is provided at each of the four corners of the battery back cover 50.

[0064] When the rear shell 40 is fastened to the battery rear cover 50 and ultrasonic welding is performed, the limiting protrusion 52 is used to limit the depth of the welding protrusion 51 into the welding ring groove 41, thereby avoiding excessive ultrasonic welding and resulting in disassembly difficulties.

[0065] According to one embodiment of the present invention, such as Figure 1 , Figure 4 , Figure 7 and Figure 10 As shown, a battery removal part 53 is provided on one side edge of the battery back cover 50, and a battery removal port 42 is provided on the back cover 40 corresponding to the battery removal part 53. The battery removal part 53 is located inside the battery removal port 42 and at least partially protrudes outward from the side wall of the back cover 40.

[0066] The corresponding battery removal port 42 allows operators to easily separate the battery back cover 50 from the back shell 40 using tools, thus achieving the purpose of detachment.

[0067] According to one embodiment of the present invention, such as Figure 7As shown, the battery rear cover 50 has a protruding abutment portion 54 on the side facing the rear shell 40. The abutment portion 54 is used to press down the battery spring located in the battery housing space.

[0068] According to one embodiment of the present invention, such as Figure 7 As shown, the battery back cover 50 has a recessed area 55 on the side facing the back shell 40. The recessed area 55 is used to avoid the battery spring. The abutment part 54 is located in the recessed area 55, that is, the recessed area 55 is provided around the abutment part 54.

[0069] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electronic shelf label housing, characterized in that, include: The rear shell (40) has a battery housing space inside; Battery back cover (50), the battery back cover (50) is connected to the rear shell (40) to seal the battery housing space; The rear shell (40) is provided with a welding ring groove (41) on the side facing the battery rear cover (50), and the battery rear cover (50) is provided with a welding protrusion (51) on the side facing the rear shell (40). The welding protrusion (51) is inserted into the welding ring groove (41). The welding protrusion (51) has a first ultrasonic part (12) on the side near the welding ring groove (41). The welding annular groove (41) has a second ultrasonic section (22) on the side near the welding protrusion (51), and the first ultrasonic section (12) and the second ultrasonic section (22) are welded together.

2. The electronic shelf label housing according to claim 1, characterized in that, An overflow area (30) is provided between the welding protrusion (51) and the welding ring groove (41) so that at least part of the molten adhesive formed during the ultrasonic welding process flows into the overflow area (30).

3. The electronic shelf label housing according to claim 1, characterized in that, At least one of the first ultrasonic part (12) and the second ultrasonic part (22) has a angular structure or a rounded structure.

4. The electronic shelf label housing according to claim 1, characterized in that, The welding annular groove (41) is provided with welding steps, and at least a portion of the welding steps forms the second ultrasonic section (22).

5. The electronic shelf label housing according to claim 4, characterized in that, The welding ring groove (41) is also provided with an ultrasonic limiting rib (23), and the welding protrusion (51) is disposed between the ultrasonic limiting rib (23) and the welding step. The ultrasonic limiting rib (23) is used to limit the movement of the welding protrusion (51) in the lateral direction.

6. The electronic shelf label housing according to claim 5, characterized in that, The ultrasonic limiting rib (23) and the welded protruding ring (51) have a limiting rib gap in the transverse direction, and the width of the limiting rib gap is 0mm-0.1mm.

7. The electronic shelf label housing according to claim 1, characterized in that, The first ultrasonic part (12) and the second ultrasonic part (22) are ultrasonically welded by shearing. The first ultrasonic part (12) or the second ultrasonic part (22) has a shearing ultrasonic welding part (31). The length Z of the shearing ultrasonic welding part (31) is 0.3mm~0.6mm along the depth direction of the welding ring groove (41), and the width Y of the shearing ultrasonic welding part (31) is 0.2mm~0.4mm along the width direction of the welding ring groove (41).

8. The electronic shelf label housing according to any one of claims 1-7, characterized in that, The battery back cover (50) is provided with at least one limiting protrusion (52) on the side facing the back shell (40), and the limiting protrusion (52) is located outside the welding protrusion (51); when the back shell (40) and the battery back cover (50) are welded together, the limiting protrusion (52) abuts against the back shell (40).

9. The electronic shelf label housing according to any one of claims 1-7, characterized in that, The battery rear cover (50) has a battery disassembly part (53) on one side edge, and the rear shell (40) has a battery disassembly opening (42) corresponding to the battery disassembly part (53). The battery disassembly part (53) is located inside the battery disassembly opening (42) and at least partially protrudes outward from the side wall of the rear shell (40).

10. The electronic shelf label housing according to any one of claims 1-7, characterized in that, The battery rear cover (50) has a protruding abutment (54) on the side facing the rear shell (40), and the abutment (54) is used to press down the battery spring located in the battery receiving space. The battery back cover (50) has a recessed area (55) on the side facing the back shell (40). The recessed area (55) is used to avoid the battery spring. The abutment part (54) is located in the recessed area (55).

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