POS machine rear shell and POS machine

Abstract

The utility model provides a POS machine rear shell and POS machine wherein the POS machine rear shell comprises a first shell and a second shell, the first shell is provided with a circle of first bone position, the second shell is provided with a circle of second bone position corresponding to the first bone position, the first bone position and the second bone position are connected to form a magnetic head space, the first bone position and the second bone position are connected through a sealing ring, and the first bone position and the second bone position are connected through the sealing ring. The magnetic head is located in the magnetic head space and comprises at least one set of elastic arms, the ends of the elastic arms are fixed, one end of the grounding piece is connected to the ends of the elastic arms, and the other end of the grounding piece is connected to a PCB in the POS machine rear shell. According to the POS machine rear shell provided by the utility model, the magnetic head has a better grounding effect under the condition that the waterproof performance of the magnetic head is ensured.

Description

Technical Field

[0001] This utility model mainly relates to the field of POS machine technology, and in particular to a POS machine back cover and a POS machine. Background Technology

[0002] A POS machine (Point of Sale) is an electronic payment terminal device used to complete consumer payments and transaction settlements. A POS machine reads product barcodes or bank card information, inputs the transaction amount, and completes the payment through online transactions with the banking system. It can display product information (such as unit price, department, discount, etc.) and automatically record sales details for business management and analysis.

[0003] A POS machine consists of both hardware and software components, including a screen, buttons, card slot / reader, printer, and network module. These components work together to complete each step of the transaction process, ensuring fast, accurate, and secure transactions. The back cover of the POS machine is a crucial protective element, containing the magnetic stripe reader (MSR), a key component for reading the magnetic stripe information on bank cards. The MSR converts the magnetic stripe information into digital signals using an internal chip and circuitry, which are then transmitted to the POS machine's motherboard for processing. During reading, the MSR maintains close contact with the card's magnetic stripe to ensure accuracy and stability. The MSR's movement and the need for gaps around it create an area susceptible to water ingress; therefore, higher waterproofing requirements are necessary for the POS machine. Conventional MSR designs place the MSR close to the antenna, leading to significant interference. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a POS machine back cover and POS machine that, while ensuring the waterproof performance of the magnetic head, also enables the magnetic head to have a better grounding effect.

[0005] To solve the above-mentioned technical problems, in a first aspect, this utility model provides a POS machine back cover, comprising: a first housing and a second housing, wherein the first housing has a first rib, and the second housing has a second rib corresponding to the first rib; the first rib and the second rib are connected to form a magnetic head space, and the first rib and the second rib are connected by a sealing ring; a magnetic head, the magnetic head being located within the magnetic head space, the magnetic head including at least one set of elastic arms, the ends of the elastic arms being fixed; and a grounding member, one end of the grounding member being connected to the end of the elastic arm, and the other end being connected to the PCB board in the POS machine back cover.

[0006] Optionally, the sealing ring is a ring of waterproof foam or rubber.

[0007] Optionally, the first bone position has a protrusion and the second bone position has a groove, or the first bone position has a groove and the second bone position has a protrusion, wherein when the first bone position and the second bone position are connected, the protrusion is placed in the groove.

[0008] Optionally, the sealing ring is placed in the gap where the groove and the protrusion connect.

[0009] Optionally, the end of the elastic arm has a hole; a conductive screw is provided, the conductive screw passes through the hole and fixes the end of the elastic arm, and the conductive screw is in contact with the elastic arm; the grounding member is connected to the end of the elastic arm by connecting one end of the grounding member to the conductive screw.

[0010] Optionally, the conductive screw is a metal screw.

[0011] Optionally, the conductive screw is a countersunk screw. When the countersunk screw passes through the hole and fixes the end of the elastic arm, the elastic arm contacts the countersunk section of the countersunk screw.

[0012] Optionally, the grounding component is a conductive wire, one end of which is wound around the conductive screw, and the other end is connected to the PCB board in the back cover of the POS machine.

[0013] Optionally, the grounding component is a conductive cloth, with one side of the conductive cloth attached to the conductive screw and the other side attached to the PCB board in the back cover of the POS machine.

[0014] Secondly, this utility model provides a POS machine, including a POS machine back cover, wherein the POS machine back cover adopts the POS machine back cover as described in any one of the first aspects.

[0015] Compared with the prior art, the present invention has the following advantages: The POS back cover includes a first shell and a second shell. The first shell has a first rib, and the second shell has a second rib corresponding to the first shell. The first rib and the second rib are connected to form a magnetic head space. The first rib and the second rib are connected by a sealing ring. The magnetic head is located in the magnetic head space. The magnetic head includes at least one set of elastic arms. The ends of the elastic arms are fixed. One end of the grounding member is connected to the end of the elastic arm, and the other end is connected to the PCB board in the POS back cover. It can be seen that the structure of the rib and the sealing ring improves the waterproof performance of the magnetic head space. At the same time, the grounding structure of the magnetic head is optimized, which ensures the waterproof performance of the magnetic head and also makes the magnetic head have a better grounding effect. Attached Figure Description

[0016] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the back cover of a POS machine according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the back cover of a POS machine according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 A schematic diagram of the bone structure in one embodiment of this utility model. Figure 1 ;

[0021] Figure 5 A schematic diagram of the bone structure in one embodiment of this utility model. Figure 2 ;

[0022] Figure 6 A schematic diagram of the bone structure in one embodiment of this utility model. Figure 3 .

[0023] In the picture:

[0024] 110 - First shell, 111 - First skeletal position;

[0025] 120 - Second shell, 121 - Second skeletal position;

[0026] 130 - Sealing ring;

[0027] 140 - Magnetic head, 141 - Flexible arm;

[0028] 150 - Grounding component;

[0029] 160-PCB board;

[0030] 170 - Conductive screw. Detailed Implementation

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0032] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0034] refer to Figures 1-3 As shown, the POS machine back cover provided in this embodiment mainly includes a first housing 110, a second housing 120, a magnetic head 140, and a grounding component 150. The first housing 110 has a ring of first ribs 111, and the second housing 120 has a ring of second ribs 121 corresponding to the first ribs 111. The first ribs 111 and the second ribs 121 are connected to form a magnetic head space. The first ribs 111 and the second ribs 121 are connected by a sealing ring 130. The magnetic head 140 is located in the magnetic head space and includes at least one set of elastic arms 141. The ends of the elastic arms 141 are fixed. One end of the grounding component 150 is connected to the end of the elastic arm 141, and the other end is connected to the PCB board 160 in the POS machine back cover.

[0035] In a POS machine, the magnetic head 140 must avoid contact with liquids and maintain a suitable operating environment to protect it from moisture damage, ensuring the normal operation of the POS machine and extending its service life. Based on this requirement, this embodiment combines the first rib 111 and the second rib 121 to provide a reliable magnetic head space for the magnetic head 140. The magnetic head 140 is confined within this space, reducing the possibility of contact with the outside. Simultaneously, a sealing ring 130 is added at the contact point between the first rib 111 and the second rib 121. This sealing ring 130, through the pressure sealing effect of the first rib 111 and the second rib 121, facilitates waterproofing. The sealing ring 130 effectively prevents moisture (and also dust) from entering the interior of the POS machine's magnetic head, protecting the magnetic head 140 from damage. Furthermore, during daily use of the POS machine, the sealing ring 130 reduces the impact of environmental changes (such as temperature and humidity variations) on the performance of the magnetic head 140, enhancing the durability of the device.

[0036] On the other hand, the magnetic head 140 is relatively close to the antenna FPC (Flexible Printed Circuit), which has a significant interference effect on the antenna, requiring grounding of the magnetic head 140. In this embodiment, the magnetic head 140 includes at least one set of elastic arms 141, with the ends of the elastic arms 141 fixed. One end of the grounding component 150 is connected to the end of the elastic arm 141, and the other end is connected to the PCB board 160 in the back cover of the POS machine. This optimized grounding structure of the magnetic head 140 ensures the waterproof performance of the magnetic head 140 while also providing a better grounding effect.

[0037] In one example, the sealing ring 130 is a ring of waterproof foam or rubber.

[0038] Waterproof foam is a type of foam material with waterproof properties, mainly made of polymer materials such as polyurethane or polyethylene. It possesses excellent waterproof and thermal insulation properties, effectively preventing moisture penetration and protecting the magnetic head 140 within the magnetic head space from moisture and water damage. It also effectively maintains temperature, providing good thermal insulation. Rubber is a highly elastic polymer compound with excellent elasticity, capable of returning to its original shape after significant deformation. It has excellent water and air impermeability, making it very suitable for sealing materials. Furthermore, rubber is an insulator and does not easily conduct electricity. In this embodiment, a suitable sealing material can be selected as the sealing ring 130 according to actual conditions to ensure the waterproof performance of the magnetic head space.

[0039] In one example, the first bone position 111 has a protrusion and the second bone position 121 has a groove, or the first bone position 111 has a groove and the second bone position 121 has a protrusion, wherein when the first bone position 111 and the second bone position 121 are connected, the protrusion is placed in the groove. Further, the sealing ring 130 is placed in the gap when the groove and the protrusion are connected.

[0040] refer to Figure 4 As shown, taking the first bone position 111 having a groove and the second bone position 121 having a protrusion as an example, the groove and protrusion, in combination, make the first bone position 111 and the second bone position 121 easier to position and improve the stability of the bone structure; on the other hand, the bone structure itself also has a certain sealing effect. When a sealing ring 130 is added between the first bone position 111 and the second bone position 121, the sealing ring 130 can be placed in the gap between the first bone position 111 and the second bone position 121, as shown in the reference. Figure 5 As shown, under the pressure of the first bone position 111 and the second bone position 121, the sealing ring 130 can better perform its sealing function. (Reference) Figure 6 As shown, in order to make the bone structure more compact, with the sealing ring 130, the groove depth of the first bone position 111 is greater than the protrusion height of the second bone position 121. When the first bone position 111 and the second bone position 121 come into contact, the gap of the sealing ring 130 is naturally left in the middle area. In this way, the contact area of ​​the first bone position 111 and the second bone position 121 is larger and the structure is more compact.

[0041] In one example, the end of the elastic arm 141 has a hole, and the back cover of the POS machine is provided with a conductive screw 170. The conductive screw 170 passes through the hole and fixes the end of the elastic arm 141, and the conductive screw 170 is in contact with the elastic arm 141. At this time, one end of the grounding member 150 is connected to the end of the elastic arm 141, which means that one end of the grounding member 150 is connected to the conductive screw 170, and the conductive screw 170 and the elastic arm 141 are in constant contact.

[0042] In this structure, the conductive screw 170 serves to fix the end of the elastic arm 141. At the same time, the elastic arm 141 (or the magnetic head 140), the conductive screw 170, and the grounding component 150 form a conductive path, which is then connected to the PCB board 160 by the grounding component 150 to achieve a good grounding effect for the magnetic head 140.

[0043] In one example, the conductive screw 170 is a metal screw, meaning it is made of metal. Metal screws have extremely high electrical conductivity, enabling them to conduct current quickly and efficiently. Furthermore, metal screws can withstand significant mechanical stress, providing a good fixation effect on the end of the elastic arm 141.

[0044] In one example, the conductive screw 170 is a countersunk screw. When the countersunk screw passes through the hole and fixes the end of the elastic arm 141, the elastic arm 141 contacts the countersunk section of the countersunk screw.

[0045] In this embodiment, to ensure the magnetic head 140 is grounded while maintaining smooth movement and waterproofing, a hole (i.e., a positioning hole) is provided at the end of the elastic arm 141. The countersunk screw consists of a nut section, a countersunk section, and a threaded section from top to bottom. The countersunk section passes through the first housing 110, the nut section presses against the first housing 110, and the threaded section passes through the positioning hole of the elastic arm 141, locking with the screw post of the second housing 120. This structure does not affect the movement of the magnetic head during card swiping, and the countersunk screw and the elastic arm 141 achieve electrical conductivity through hard contact.

[0046] In one example, the grounding component 150 is a conductive wire, one end of which is wound around the conductive screw 170, and the other end is connected to the PCB board 160 in the back cover of the POS machine.

[0047] In one example, the grounding component 150 is a conductive cloth, with one side of the conductive cloth attached to the conductive screw 170 and the other side attached to the PCB board 160 in the back cover of the POS machine.

[0048] Conductive wires, typically made of metal, possess very high electrical conductivity. Under the same conditions, their conductivity is slightly stronger than that of conductive cloth, especially copper wires, which can withstand higher temperatures without melting or deforming, making them suitable for high-temperature environments. Furthermore, conductive wires can withstand greater mechanical tension, making them easier to install. Conductive cloth, on the other hand, has excellent plasticity and can be manufactured into various shapes and sizes as needed. Its extremely thin thickness, typically only a few micrometers, makes it commonly used in space-constrained applications, such as the POS machine back cover in this embodiment. Additionally, conductive cloth is easy to process and install, can be made into products of various shapes and sizes, and is flexible, resistant to breakage and deformation, and can adapt to different bends and twists.

[0049] This embodiment of the POS back cover includes a first housing 110, a second housing 120, a magnetic head 140, and a grounding component 150. The first housing 110 has a ring of first ribs 111, and the second housing 120 has a ring of second ribs 121 corresponding to the first ribs 111. The first ribs 111 and second ribs 121 are connected to form a magnetic head space. The first ribs 111 and second ribs 121 are connected by a sealing ring 130. The magnetic head 140 is located within the magnetic head space and includes at least one set of elastic arms 141. The ends of the elastic arms 141 are fixed. One end of the grounding component 150 is connected to the end of the elastic arms 141, and the other end is connected to the PCB board 160 in the POS back cover. Therefore, this POS back cover improves the waterproof performance of the magnetic head space through the structure of the ribs and the sealing ring 130. Simultaneously, it optimizes the grounding structure of the magnetic head 140, ensuring the waterproof performance of the magnetic head 140 while also providing better grounding.

[0050] Another embodiment of this utility model provides a POS machine, including a POS machine back cover, wherein the POS machine back cover adopts the POS machine back cover as described in the foregoing embodiments. For a detailed description of the specific structure and effects of the POS machine back cover, please refer to the above embodiments, which will not be repeated here.

[0051] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure of the utility model is merely an example and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore, such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

[0052] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0053] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. A POS machine back cover, characterized in that, include: A first shell and a second shell, wherein the first shell has a ring of first ribs and the second shell has a ring of second ribs corresponding to the first ribs; The first bone position and the second bone position are connected to form a magnetic head space, and the first bone position and the second bone position are connected by a sealing ring; A magnetic head, located within a magnetic head space, the magnetic head including at least one set of elastic arms, the ends of the elastic arms being fixed; A grounding component, one end of which is connected to the end of the elastic arm, and the other end of which is connected to the PCB board in the back cover of the POS machine.

2. The POS machine back cover as described in claim 1, characterized in that, The sealing ring is a ring of waterproof foam or rubber.

3. The POS machine back cover as described in claim 1, characterized in that, The first bone position has a protrusion and the second bone position has a groove, or the first bone position has a groove and the second bone position has a protrusion, wherein when the first bone position and the second bone position are connected, the protrusion is placed in the groove.

4. The POS machine back cover as described in claim 3, characterized in that, The sealing ring is placed in the gap where the groove and the protrusion connect.

5. The POS machine back cover as described in claim 1, characterized in that, The end of the elastic arm has a hole; A conductive screw is provided, which passes through the hole and fixes the end of the elastic arm, and the conductive screw is in contact with the elastic arm; The grounding component is connected at one end to the end of the elastic arm, including: the grounding component is connected at one end to the conductive screw.

6. The POS machine back cover as described in claim 5, characterized in that, The conductive screw is a metal screw.

7. The POS machine back cover as described in claim 5, characterized in that, The conductive screw is a countersunk screw. When the countersunk screw passes through the hole and fixes the end of the elastic arm, the elastic arm contacts the countersunk section of the countersunk screw.

8. The POS machine back cover as described in claim 5, characterized in that, The grounding component is a conductive wire, one end of which is wound around the conductive screw, and the other end is connected to the PCB board in the back cover of the POS machine.

9. The POS machine back cover as described in claim 5, characterized in that, The grounding component is a conductive cloth, with one side of the conductive cloth attached to the conductive screw and the other side attached to the PCB board in the back cover of the POS machine.

10. A POS machine, comprising a POS machine back cover, characterized in that, The POS machine back cover adopts the POS machine back cover as described in any one of claims 1 to 9.

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