Card cassette recorder

Abstract

The application relates to the technical field of recording equipment, and provides a card-type recording equipment, which comprises a metal shell, a dielectric layer, a control circuit and an antenna module. The shell has at least a front shell wall, a back shell wall and a plurality of side shell walls, and the front shell wall or at least any side shell wall is provided with an opening. The dielectric layer covers the opening and is jointly enclosed with the shell to form a containing cavity. The antenna module is located in the containing cavity, the control circuit is arranged between the front shell wall and the back shell wall and has the same extension direction as the front shell wall and the back shell wall. The antenna module is located on the side, away from the back shell wall, of the control circuit and is arranged close to the dielectric layer. The control circuit is electrically connected with the antenna module to realize signal transmission or reception. The card-type recording equipment provided by the application can reduce useless loss in antenna signal transmission, improve the signal quality and stability of the antenna module.

Description

Technical Field

[0001] This application relates to the field of recording equipment technology, and more particularly to a card-type recording device. Background Technology

[0002] As recording devices become increasingly integrated into people's lives and work, simple local recording functions are no longer sufficient to meet daily needs. New recording devices are typically equipped with antennas to enable extended functions such as wireless recording, signal reception, and remote control.

[0003] In order to improve the product's texture, existing card-type recording devices have a casing made of two metal plates, one on top and one on the bottom, and the antenna is radiated by opening a corresponding antenna hole on the back of the casing.

[0004] However, in many application scenarios of card-type recording devices, when the card-type recording device is placed face down on a metal table or used on an electronic device with its back attached to a metal casing, the electromagnetic shielding effect of the metal and the reflection of electromagnetic waves will interfere with the antenna signal of the device, resulting in unstable antenna signal and poor signal quality. Utility Model Content

[0005] This application provides a card-type recording device to solve the problem in the prior art where the antenna may suffer signal loss due to the influence of the metal desktop or the metal casing of the electronic device when it radiates from the back.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a card-type recording device, comprising: a metal housing having at least a front shell wall, a back shell wall, and a plurality of side shell walls, wherein the front shell wall or at least any one side shell wall has an opening; a dielectric layer covering the opening and forming a receiving cavity together with the housing; an antenna module located within the receiving cavity; and a control circuit disposed between the front shell wall and the back shell wall, extending in the same direction as the front shell wall and the back shell wall; wherein the antenna module is located on the side of the control circuit away from the back shell wall and close to the dielectric layer; and the control circuit is electrically connected to the antenna module to realize signal transmission or reception.

[0008] As an optional implementation, the dielectric layer is made of one of silicate glass, low-dielectric ceramic, and low-dielectric plastic; wherein the dielectric constant of both low-dielectric ceramic and low-dielectric plastic is less than 10.

[0009] As an optional implementation, when the dielectric layer is made of silicate glass or low-dielectric ceramic, an isolation element is provided between the antenna module and the control circuit.

[0010] As an optional implementation, along the stacking direction of the control circuit and the antenna module, the extension dimension of the isolator is greater than or equal to 0.1 mm and less than or equal to 3 mm.

[0011] As an optional implementation, the isolation component is a PCB adapter board, and the antenna module and the control circuit are electrically connected through the PCB adapter board.

[0012] As an optional implementation, the antenna module includes a multilayer ceramic antenna; the multilayer ceramic antenna is stacked along the stacking direction of the control circuit and the antenna module.

[0013] As an optional implementation, when the dielectric layer is made of low-dielectric plastic, the antenna module is disposed on the wall of the dielectric layer facing the cavity; the side of the antenna module away from the dielectric layer is spaced apart from the control circuit.

[0014] As an alternative implementation, the antenna module is a flexible circuit board antenna, which is attached to the wall of the dielectric layer facing the cavity; or, the antenna module is a laser-formed antenna, which is formed on the wall of the dielectric layer facing the cavity.

[0015] As an alternative implementation, the antenna module is electrically connected to the control circuit via one of a spring pin, a spring sheet, or conductive adhesive.

[0016] As an alternative implementation, the housing includes an upper housing and a lower housing that are interconnected; an opening is located in the upper housing; or, the lower housing has an opening, the upper housing is connected to the opening of the lower housing and covers part of the opening, the opening not covered by the upper housing forms an opening, and a dielectric layer connects the upper housing and the lower housing.

[0017] The card-type recording device provided in this application includes a metal housing, a dielectric layer, a control circuit, and an antenna module. The housing has at least one front shell wall, a back shell wall, and several side shell walls, with an opening on the front shell wall or at least one side shell wall. The dielectric layer covers the opening and, together with the housing, forms a receiving cavity. The antenna module is located within the receiving cavity, and the control circuit is disposed between the front and back shell walls, extending in the same direction as the front and back shell walls. The antenna module is located on the side of the control circuit away from the back shell wall and close to the dielectric layer. Furthermore, the control circuit is electrically connected to the antenna module to achieve signal transmission or reception.

[0018] Because the control circuit is located between the front and rear shell walls, and the antenna module is located on the side of the control circuit away from the rear shell wall, the thickness of the control circuit itself can isolate the antenna module from the rear shell wall. This increases the distance between the antenna module and the rear shell wall, thereby reducing the absorption and blocking effect of the rear metal shell wall on electromagnetic wave signals.

[0019] Meanwhile, because the antenna module is located close to the dielectric layer, when the dielectric layer is located on the front wall of the housing, and the antenna module is located on one side of the front of the housing and close to the dielectric layer, the antenna signal can pass through the dielectric layer to achieve frontal radiation towards the outside, thereby reducing the signal loss caused by the back contact with the metal desktop or the metal housing of the electronic device during signal transmission.

[0020] When the dielectric layer is located on the side wall of the housing, the antenna module can be positioned close to the side wall with the dielectric layer. This allows the antenna signal to radiate laterally through the dielectric layer on the side wall, reducing losses caused by metal interference during signal transmission or reception. Therefore, this approach improves the signal radiation efficiency of the antenna module, reduces energy waste, and enhances the signal stability of the antenna. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an exploded view of the structure of the card-type recording device provided in the embodiments of this application;

[0023] Figure 2 A cross-sectional view of the card-type recording device provided in the embodiments of this application at the antenna module;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a schematic diagram showing the position of the magnetic suction element provided in the embodiments of this application;

[0026] Figure 5 This is a three-dimensional structural diagram of the card-type recording device provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10 - Card-type recording device;

[0029] 100 - Housing; 101 - Opening; 102 - Front housing wall; 103 - Back housing wall; 104 - Side housing wall; 110 - Upper housing; 120 - Lower housing; 130 - Connector; 140 - Button; 150 - Microphone hole; 160 - Boss;

[0030] 200 - Dielectric layer;

[0031] 300-antenna module;

[0032] 400 - Control circuit;

[0033] 500-Isolation component;

[0034] 600 - Magnetic attachment. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] As recording devices become increasingly integrated into people's lives and work, simple local recording functions are no longer sufficient to meet daily needs. New recording devices are typically equipped with antennas to enable extended functions such as wireless recording, signal reception, and remote control.

[0037] In existing card-type recording devices, to enhance the product's premium feel, the casing is made of two metal plates, one on top and one on the bottom, while the antenna radiates signals by creating a corresponding antenna hole on the back of the casing.

[0038] However, in many application scenarios of card-type recording devices, when the card-type recording device is placed face down on a metal table or when the back is attached to an electronic device with a metal casing, the metal table or the metal casing of the electronic device is a good conductor, and it will interact with the antenna signal of the device and cause interference.

[0039] For example, when an electromagnetic wave encounters a metal tabletop or the metal casing of an electronic device, the free electrons in the metal will move in a specific direction under the influence of an alternating electric field, forming an "induced current". This induces an electromagnetic field that is opposite in direction to the magnetic field of the incident electromagnetic wave. The two fields cancel each other out, causing most of the incident electromagnetic wave to be unable to penetrate the metal tabletop or the metal casing of the electronic device to reach the internal antenna (receiving end). At the same time, the electromagnetic waves emitted by the antenna are also unable to penetrate the metal tabletop or the metal casing of the electronic device to radiate outward (transmitting end).

[0040] Moreover, metal desktops or the metal casing of electronic devices will reflect electromagnetic waves multiple times, causing "multipath interference" at the transmitting and receiving ends, resulting in unstable signal amplitudes received or transmitted by the antenna, or even signal distortion.

[0041] In addition, eddy currents generated in alternating electromagnetic fields by metal desktops or the metal casings of electronic devices can convert the energy of electromagnetic waves into heat energy, resulting in a decrease in the radiation efficiency of the antenna and a weakening of signal strength and stability.

[0042] In other words, the electromagnetic shielding effect of metals absorbs and weakens some signal energy, and their reflection of electromagnetic waves can disrupt the signal transmission path and generate eddy currents that convert electromagnetic wave energy into heat. This can interfere with the antenna signal, causing signal instability, poor signal quality, and signal loss.

[0043] To overcome the deficiencies in the prior art, this application provides a card-type recording device, which includes a metal housing, a dielectric layer, a control circuit, and an antenna module. The housing has at least one front shell wall, a back shell wall, and several side shell walls, with an opening on the front shell wall or at least one side shell wall. The dielectric layer covers the opening and, together with the housing, forms a receiving cavity. The antenna module is located within the receiving cavity, and the control circuit is disposed between the front and back shell walls, extending in the same direction as the front and back shell walls. The antenna module is located on the side of the control circuit away from the back shell wall and close to the dielectric layer. Furthermore, the control circuit is electrically connected to the antenna module to achieve signal transmission or reception.

[0044] Because the control circuit is located between the front and rear shell walls, and the antenna module is located on the side of the control circuit away from the rear shell wall, the thickness of the control circuit itself can isolate the antenna module from the rear shell wall. This increases the distance between the antenna module and the rear shell wall, thereby reducing the absorption and blocking effect of the rear metal shell wall on electromagnetic wave signals.

[0045] Meanwhile, because the antenna module is located close to the dielectric layer, when the dielectric layer is located on the front wall of the housing, and the antenna module is located on one side of the front of the housing and close to the dielectric layer, the antenna signal can pass through the dielectric layer to achieve frontal radiation towards the outside, thereby reducing the signal loss caused by the back contact with the metal desktop or the metal housing of the electronic device during signal transmission.

[0046] When the dielectric layer is located on the side wall of the housing, the antenna module can be positioned close to the side wall with the dielectric layer. This allows the antenna signal to radiate laterally through the dielectric layer on the side wall, reducing losses caused by metal interference during signal transmission or reception. Therefore, this approach improves the signal radiation efficiency of the antenna module, reduces energy waste, and enhances the signal stability of the antenna.

[0047] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0048] Figure 1 This is an exploded view of the structure of the card-type recording device provided in the embodiments of this application.

[0049] Reference Figure 1 As shown, this application provides a card-type recording device 10, which includes a housing 100, a dielectric layer 200, a control circuit 400, and an antenna module 300.

[0050] The housing 100 is a metal housing, and the housing 100 has at least a front housing wall 102, a back housing wall 103, and several side housing walls 104. An opening 101 is provided on the front housing wall 102 or at least any one of the side housing walls 104 of the housing 100. The opening 101 can be a hole, a groove, or other structural form that can connect the inside and outside of the housing 100.

[0051] For example, opening 101 can be formed on the front shell wall 102 of the housing 100, opening 101 can also be formed on the side shell wall 104 of the housing 100 on any side, or opening 101 can be formed on multiple side shell walls 104 of the housing 100.

[0052] Understandably, since the card-type recording device 10 typically adopts a slim design, its side shell walls 104 are usually narrower. Therefore, placing the opening 101 on the front shell wall 102 of the housing 100 is more manufacturable than placing it on the side shell wall 104. Of course, placing the opening 101 on the side shell wall 104 of the housing 100 does not affect the front visual effect of the card-type recording device 10, resulting in a better overall appearance.

[0053] The cross-section of the shell 100 in its thickness direction may be quadrilateral, hexagonal, octagonal, etc., and no limitation is made here. Furthermore, of the two opposing shell walls that are furthest apart in the thickness direction of the shell 100, one is the front shell wall 102 and the other is the back shell wall 103, and the remaining shell walls are the side walls of the shell 100.

[0054] It should be noted that the back shell wall 103 of the housing 100 is the side shell wall that attracts or adheres to the electronic device or metal tabletop during normal use of the card-type recording device. The front shell wall 102 is the side shell wall opposite to the back shell wall 103.

[0055] Furthermore, the housing 100 can be a one-piece structure or a split structure, and no specific limitation is made here.

[0056] The dielectric layer 200 covers the opening 101, and the dielectric layer 200 and the housing 100 together form a receiving cavity. The antenna module 300 and the control circuit 400 are both located within the receiving cavity. Thus, the cooperation between the dielectric layer 200 and the housing 100 forms a closed cavity, thereby isolating the internal components of the card-type recording device 10 from the outside world, and protecting the control circuit 400 and the antenna module 300 within the card-type recording device 10.

[0057] Understandably, compared to the metal casing 100, the dielectric layer 200 is non-conductive and has no free charge flow. When electromagnetic wave signals pass through the dielectric layer 200, they will not be absorbed or reflected by the "eddy current effect" like in metal, nor will they form a Faraday cage effect that blocks signal propagation.

[0058] Therefore, the dielectric layer 200 provided on the housing 100 can provide a penetrable area for the antenna signal and can reduce the reduction of the antenna signal transmission by the housing 100, thereby reducing the loss of the antenna signal and playing a positive role in the stable transmission of the antenna signal.

[0059] The control circuit 400 can be disposed between the front shell wall 102 and the back shell wall 103, and in the same direction of extension as the front shell wall 102 and the back shell wall 103. For example, the control circuit 400 can be directly attached to the back shell wall 103 of the housing 100, or it can be disposed in parallel between the front shell wall 102 and the back shell wall 103.

[0060] This configuration maximizes the available board area for the control circuit 400, facilitating the design and layout of circuit components within the control circuit 400.

[0061] The control circuit 400 can be a rigid printed circuit board (RigidPCB), a flexible printed circuit board (Flexible FPC), or a combination of a rigid PCB and an FPC; no limitation is made here.

[0062] Furthermore, the antenna module 300 can be located on the side of the control circuit 400 away from the back cover wall 103 and close to the dielectric layer 200. The control circuit 400 can be electrically connected to the antenna module 300 to realize signal transmission or reception.

[0063] Because the control circuit 400 is located between the front shell wall 102 and the back shell wall 103, and the antenna module 300 is located on the side of the control circuit 400 away from the back shell wall 103, the thickness of the control circuit 400 itself can isolate the antenna module 300 from the back shell wall 103, thereby increasing the distance between the antenna module 300 and the back shell wall 103 and reducing the absorption and blocking effect of the back metal shell wall on electromagnetic wave signals.

[0064] Especially when the card-type recording device 10 is a thin and light device with a small thickness, by placing the antenna module 300 on the side of the control circuit 400 away from the back shell wall 103, the signal stability and quality of the antenna can be effectively improved in a limited space.

[0065] Meanwhile, since the antenna module 300 is located close to the dielectric layer 200, when the dielectric layer is located on the front wall 102 of the housing 100, the antenna module 300 is located on one side of the front of the housing 100 and close to the dielectric layer. The antenna signal can pass through the dielectric layer 200 to achieve frontal radiation towards the outside, thereby reducing the signal loss caused by the back contact with the metal desktop or the metal housing of the electronic device during signal transmission.

[0066] When the dielectric layer is disposed on the side shell wall 104 of the housing 100, the antenna module 300 can be disposed close to the side shell wall 104 with the dielectric layer. This allows the antenna signal to be radiated laterally outward through the dielectric layer on the side shell wall 104, thereby reducing signal loss caused by the influence of metal during signal transmission or reception. Therefore, by adopting the above scheme, the signal radiation efficiency of the antenna module 300 can be improved, energy waste can be reduced, and the signal stability of the antenna can be enhanced.

[0067] Understandably, based on the above, when the antenna module 300 is located in the area covered by the dielectric layer 200, its signal stability is better, and directional signal transmission can be achieved. Furthermore, the farther the antenna module 300 is from the back shell wall 103 and the closer it is to the dielectric layer 200, the better its signal quality.

[0068] The following description uses the example of opening 101 being provided on the front shell wall 102 of the housing 100.

[0069] In some embodiments, in order to further improve the stability and quality of the antenna signal, the dielectric constant of the dielectric layer 200 may be less than 10, and the dielectric loss tangent of the dielectric layer 200 may be less than or equal to 0.01.

[0070] It is understandable that the dielectric constant describes a material's ability to store electromagnetic wave energy. The closer the dielectric constant is to that of air, the smaller the "impedance jump" when electromagnetic waves enter the material from the air, and the lower the reflection loss at the material surface.

[0071] The dielectric loss tangent is a core indicator for measuring the "electromagnetic wave energy dissipation" of a material. The smaller the dielectric loss tangent, the lower the proportion of electromagnetic waves converted into heat energy by the material, and the less the signal is attenuated by absorption.

[0072] For example, the dielectric layer 200 may be made of one of silicate glass, low-dielectric ceramic, and low-dielectric plastic. The dielectric constant of both the low-dielectric ceramic and the low-dielectric plastic is less than 10.

[0073] Silicate glass can be quartz glass or aluminosilicate glass. It should be noted that the silicate glass in the embodiments of this application does not include special silicate glass that has been modified to be conductive (such as semiconductive glass or glass with a metal film on the surface).

[0074] Low-dielectric ceramics can include oxide-type low-dielectric ceramics, such as alumina ceramics, magnesium oxide ceramics, and quartz ceramics. Low-dielectric ceramics can also include non-oxide-type low-dielectric ceramics, such as aluminum nitride ceramics, silicon nitride ceramics, and silicon carbide ceramics.

[0075] Low dielectric plastics can be PTFE (Teflon), LCP (liquid crystal polymer), PPO (polyphenylene oxide), etc.

[0076] It should be noted that different dielectric layer 200 materials can be selected based on different antenna modules 300, and no specific restrictions are made here.

[0077] The following describes this application in detail, assuming that the dielectric layer 200 is made of silicate glass or low-dielectric ceramic.

[0078] Figure 2 A cross-sectional view of the antenna module of the card-type recording device provided in the embodiments of this application. Figure 3 for Figure 2 A magnified view of a portion at point A. It should be noted that this magnification is to clearly illustrate the structure of antenna module 300. Figure 2 A dielectric layer 200 is hidden inside the opening 101.

[0079] As one implementation method, refer to Figure 2 and Figure 3 As shown, when the dielectric layer 200 is made of silicate glass or low-dielectric ceramic, an isolator 500 can be provided between the antenna module 300 and the control circuit 400. It should be noted that the antenna module 300 can be electrically connected to the control circuit 400 through the isolator 500. Alternatively, the antenna module 300 can be directly electrically connected to the control circuit 400; in this case, the isolator 500 only provides support and isolation for the antenna module 300.

[0080] The isolation element 500 differs from the conventional design where the antenna module 300 is directly mounted on the control circuit 400. It allows for further elevation of the antenna module 300, enabling it to be further removed from the back cover wall 103, thereby reducing signal interference from the back cover wall 103 to the antenna module 300.

[0081] This allows for a balance between performance and manufacturability within a limited space, ensuring antenna performance even with an ultra-thin design.

[0082] For example, the antenna module 300 is electrically connected to the control circuit 400 via an isolator 500. For instance, the isolator 500 is a conductive structure; one end of the isolator 500 can be plugged into the control circuit 400, and the other end can be soldered to the antenna module 300. This achieves the electrical connection between the antenna module 300 and the control circuit 400.

[0083] In one implementation, along the stacking direction of the control circuit 400 and the antenna module 300, the extension dimension of the isolator 500 can be greater than or equal to 0.1 mm and less than or equal to 3 mm.

[0084] For example, the extension dimension of the isolator 500 can be within the range of 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, or any combination thereof. This allows for a slimmer and lighter card-type recording device 10 while improving the antenna's anti-interference performance. For instance, when the card-type recording device 10 adopts an ultra-thin design, the extension dimension of the isolator 500 can be between 0.35mm and 0.55mm.

[0085] Understandably, the extension dimensions of the isolator 500 can be adaptively selected based on the height of the receiving cavity and the dimensions of the antenna module 300 in the stacking direction between the control circuit 400 and the antenna module 300.

[0086] For example, the isolator 500 can be a PCB adapter board, and the antenna module 300 can be electrically connected to the control circuit 400 through the PCB adapter board.

[0087] By using a PCB adapter board as an isolator 500, the antenna module 300 can be kept away from the back shell wall 103 of the housing 100. It also has good manufacturability, low cost, is suitable for mass production, and the card-type recording device 10 has high structural reliability.

[0088] Specifically, the pins of the antenna module 300 can be soldered to the pads on the PCB adapter board. The PCB adapter board can be plugged into the corresponding interface on the control circuit 400.

[0089] PCB adapter boards can use high-frequency FR-4 material, thus achieving a balance between performance and cost.

[0090] Based on this, the antenna module 300 may include a multilayer ceramic antenna. The multilayer ceramic antenna (MCA) may be stacked along the stacking direction of the control circuit 400 and the antenna module 300.

[0091] Multilayer ceramic antennas can "stack" the antenna's radiating elements, grounding layer, matching circuit, etc., inside a ceramic substrate, which can significantly reduce the space occupied by the control circuit 400, thus facilitating the overall layout of the control circuit 400. Furthermore, ceramic antennas are small in size and can be used in ultra-thin card-type recording devices 10.

[0092] Understandably, since the dielectric layer 200 uses silicate glass or low-dielectric ceramic materials, the antenna module 300 is not suitable for laser-directed structural (LDS) antennas. Ceramic antennas are also much thinner and lighter than steel antennas. Onboard antennas, on the other hand, require larger holes in the control circuit 400, which is detrimental to product thinning.

[0093] Using a ceramic antenna is not only more suitable for metal bodies and does not disrupt the overall look of the card-type recording device 10, but its small size also helps to reduce the product's thickness, making it the best choice for ultra-thin designs and metal body designs.

[0094] The following describes this application in detail, assuming that the dielectric layer 200 is made of low-dielectric plastic.

[0095] In another embodiment, the antenna module 300 may be disposed on the wall surface of the dielectric layer 200 facing the receiving cavity. The side of the antenna module 300 facing away from the dielectric layer 200 is spaced apart from the control circuit 400.

[0096] When the antenna module 300 is disposed on the wall of the dielectric layer 200 facing the receiving cavity, the distance between the antenna module 300 and the back shell wall 103 can be maximized within a limited space. Furthermore, the distance between the antenna module 300 and the dielectric layer 200 can be minimized. Thus, the quality of the antenna signal can be improved within a limited space.

[0097] In some embodiments, the antenna module 300 can be a flexible circuit board antenna (FPC antenna). The flexible circuit board antenna is attached to the wall of the dielectric layer 200 facing the cavity. This arrangement can keep it away from the back wall 103 of the housing 100 and improve the space utilization inside the cavity, which is beneficial to the thin and light design of the card-type recording device 10.

[0098] In other embodiments, the antenna module can be a laser-formed antenna (LDS antenna), which can be formed on the wall of the dielectric layer 200 facing the receiving cavity. In this way, the laser-formed antenna can be integrally formed with the dielectric layer 200, which is beneficial for thinner and lighter designs and can also reduce assembly errors.

[0099] When the antenna module 300 is a flexible circuit board antenna, the antenna module 300 can be bonded to the wall of the dielectric layer 200 facing the cavity, or it can be connected by threaded engagement, without any limitation.

[0100] In some embodiments, the antenna module 300 can be electrically connected to the control circuit 400 via one of a spring pin, a spring sheet, or conductive adhesive.

[0101] For example, when the antenna module 300 is electrically connected to the control circuit 400 via a spring contact, the spring contact can be configured as a cantilever structure, with one end of the spring contact fixedly connected to the control circuit 400 and the other end making contact with the antenna module 300. Alternatively, one end of the spring contact can be fixedly connected to the antenna module 300 and the other end making contact with the control circuit 400.

[0102] The tail of the spring pin can be inserted into the pad of the control circuit 400 and soldered to the control circuit 400. The antenna module 300 can be provided with positioning holes to ensure stable contact with the spring pin.

[0103] Alternatively, conductive adhesive can be used to directly achieve the electrical connection between the antenna module 300 and the control circuit 400.

[0104] The following provides a detailed description of the specific structure of the housing 100 and various possible implementation methods.

[0105] Continue to refer to Figure 1 As shown, the housing 100 can be a split structure, and the housing 100 may include an upper housing 110 and a lower housing 120 that are connected to each other. This not only facilitates the manufacturing of the housing 100, but also facilitates the placement and installation of the control circuit 400 and internal components.

[0106] For example, the upper housing 110 and the lower housing 120 are detachably connected. This improves the ease of component replacement and maintenance within the card-type recording device 10.

[0107] like Figure 1 As shown, the upper housing 110 and the lower housing 120 can be flexibly assembled and disassembled via a connector 130. The connector 130 can be a threaded part. Alternatively, the connection between the two can be achieved through snap-fit ​​or tenon joint structures, which are not limited here.

[0108] In some embodiments, the opening 101 may be located in the upper housing 110. For example... Figure 1 As shown, the upper housing 110 forms the front shell wall 102 and side shell walls 104 of the housing 100, and the lower housing 120 forms the back shell wall 103 of the housing 100. A dielectric layer 200 is embedded in the upper housing 110. For example, the dielectric layer 200 can be connected to the upper housing 110 by adhesive bonding. Furthermore, referring to… Figure 3 As shown, the upper housing 110 can position the dielectric layer 200 via the boss 160. Furthermore, the engagement between the boss 160 in the upper housing 110 and the lower housing 120 enables the positioning of the control circuit 400.

[0109] Alternatively, in other embodiments, the lower housing 120 may have an opening, and the upper housing 110 is connected to the opening of the lower housing 120 and covers part of the opening. The opening not covered by the upper housing 110 may form an opening 101, and the dielectric layer 200 connects the upper housing 110 and the lower housing 120. Furthermore, the lower housing 120 forms the side shell wall 104 of the entire housing 100, and the upper housing 110 and the dielectric layer 200 form the front of the card-type recording device 10.

[0110] For example, based on the improvement of the appearance of the housing 100, the opening 101 may extend through a portion of the sidewall of the housing 100.

[0111] Continue to refer to Figure 1 As shown, the two ends of the dielectric layer 200 in the extending direction can extend to part of the sidewall of the housing 100. At this time, the two ends of the dielectric layer 200 can form the sidewall of the housing 100 together with the upper housing 110 or the lower housing 120. In this way, when viewed from the front, the dielectric layer 200 has no frame limit, which improves the aesthetics and enhances the overall industrial design of the card-type recording device 10.

[0112] In some embodiments, the front shell wall 102 of the housing 100 may also be provided with anti-slip texture to increase the friction when the card-type recording device 10 is held.

[0113] Figure 4 This is a schematic diagram showing the position of the magnetic component 600 according to an embodiment of this application. It should be noted that the diagram is designed to clearly illustrate the position of the magnetic component 600. Figure 4 The lower housing 120 is hidden within. Furthermore, the length direction of the housing 100 is the X-axis, and the width direction of the housing 100 is the Y-axis.

[0114] Reference Figure 4 As shown, the card-type recording device 10 may also include a magnetic 600, which is connected to the housing 100. The magnetic 600 can be used to magnetically attach the card-type recording device 10 to a metal card holder.

[0115] In this way, the card-type recording device 10 can be directly attached to the metal card holder, thereby achieving a detachable connection between the card-type recording device 10 and the metal card holder, thus improving the portability of the card-type recording device 10.

[0116] It is understandable that a metal card holder can be a mobile phone, tablet or other electronic device with metal material, as well as a metal card holder or metal card box that is carried with you.

[0117] For example, multiple magnetic elements 600 can be provided, and the multiple magnetic elements 600 can be spaced apart along the extension direction of the housing 100, which can enhance the stability of the magnetic connection.

[0118] For example, such as Figure 1 As shown, the magnetic attractors 600 can be spaced apart in the width direction of the housing 100. Alternatively, the magnetic attractors 600 can also be spaced apart in the length direction of the housing 100.

[0119] In some embodiments, the magnetic 600 may be disposed on the side of the housing 100 away from the opening 101 along its length. Since the side with the opening 101 integrates multiple functional components (such as the antenna module 300, microphone, and button 140), placing the magnetic 600 on the other side is more conducive to achieving efficient utilization of the space inside the housing 100.

[0120] Alternatively, the magnetic component 600 can also be disposed on the side of the housing 100 facing the receiving cavity, either on the front shell wall 102 or the back shell wall 103, thereby allowing it to directly adhere to the metal shell wall, improving magnetic stability and simplifying assembly and maintenance. For example, as Figure 4 As shown, the magnetic 600 can be attracted to the wall of the upper housing 110 facing the receiving cavity.

[0121] Of course, the upper housing 110 or the lower housing 120 may also be provided with a receiving groove to receive the magnetic member 600 and fix the magnetic member 600 in the receiving groove.

[0122] Figure 5 This is a three-dimensional structural diagram of the card-type recording device provided in an embodiment of this application.

[0123] Reference Figure 5As shown, this application embodiment provides a card-type recording device 10, which also includes a microphone (not shown) and a button 140. The microphone and button 140 can be disposed in the area covered by the dielectric layer 200. The microphone can be used to capture and convert sound signals.

[0124] For example, the housing 100 is provided with a sound receiving hole 150, which is correspondingly set with a microphone inside the housing 100. After the sound passes through the sound receiving hole 150, it can be captured by the microphone to realize the basic recording function.

[0125] The button 140 can be activated in various ways to trigger different functions in the card-type recording device 10, and the button 140 can be reset by a spring element.

[0126] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0127] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "one" can be understood to convey either singular or plural usage.

[0128] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0129] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A card-type recording device, characterized in that, include: A metal casing having at least one front shell wall, one back shell wall, and several side shell walls, wherein the front shell wall or at least any one side shell wall of the casing has an opening; A dielectric layer that covers the opening and, together with the housing, forms a receiving cavity; An antenna module, wherein the antenna module is located within the receiving cavity; A control circuit is disposed between the front shell wall and the back shell wall, and extends in the same direction as the front shell wall and the back shell wall. The antenna module is located on the side of the control circuit away from the back shell wall and close to the dielectric layer; and the control circuit is electrically connected to the antenna module to realize signal transmission or reception.

2. The card-type recording device according to claim 1, characterized in that, The dielectric layer is made of one of silicate glass, low-dielectric ceramics, and low-dielectric plastics. The dielectric constants of both the low-dielectric ceramic and the low-dielectric plastic are less than 10.

3. The card-type recording device according to claim 2, characterized in that, When the dielectric layer is made of silicate glass or low-dielectric ceramic, an isolation element is provided between the antenna module and the control circuit.

4. The card-type recording device according to claim 3, characterized in that, Along the stacking direction of the control circuit and the antenna module, the extension dimension of the isolator is greater than or equal to 0.1 mm and less than or equal to 3 mm.

5. The card-type recording device according to claim 3, characterized in that, The isolation component is a PCB adapter board, and the antenna module and the control circuit are electrically connected through the PCB adapter board.

6. The card-type recording device according to any one of claims 3-5, characterized in that, The antenna module includes a multilayer ceramic antenna, which is stacked along the stacking direction of the control circuit and the antenna module.

7. The card-type recording device according to claim 2, characterized in that, When the dielectric layer is made of the low-dielectric plastic, the antenna module is disposed on the wall of the dielectric layer facing the cavity, and the side of the antenna module facing away from the dielectric layer is spaced apart from the control circuit.

8. The card-type recording device according to claim 7, characterized in that, The antenna module is a flexible circuit board antenna, which is attached to the wall surface of the dielectric layer facing the receiving cavity; or, The antenna module is a laser-formed antenna, which is formed on the wall of the dielectric layer facing the cavity.

9. The card-type recording device according to claim 8, characterized in that, The antenna module is electrically connected to the control circuit via one of the following: a spring pin, a spring sheet, or conductive adhesive.

10. The card-type recording device according to claim 1, characterized in that, The housing includes an upper housing and a lower housing that are connected to each other; The opening is located in the upper housing; or, the lower housing has an opening, the upper housing is connected to the opening of the lower housing and covers part of the opening, the opening not covered by the upper housing forms the opening, and the dielectric layer is connected to the upper housing and the lower housing.

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