Wearable equipment and injection molding system and opening and manufacturing method thereof

Abstract

The invention relates to electronic equipment of the internet of things, and discloses wearable equipment, an injection molding system of the wearable equipment and an opening and manufacturing method of the wearable equipment. The injection molding system comprises a mold, a bracket, a circuit board and a battery, the circuit board and the battery are fixed on the bracket, and the battery supplies power to the circuit board; the mold is provided with a hollow cavity, and the bracket on which the circuit board and the battery are fixed is arranged in the cavity; one part of the bracket is in contact with the mold so as to stably arrange the bracket in the cavity; the circuit board and the battery are arranged in the cavity and are not in contact with the inner surface of the cavity; the mold comprises at least one injection molding hole communicating the cavity with the exterior of the mold. According to the injection molding system, integrated packaging of products can be achieved, the waterproof performance and the structural strength are improved, meanwhile, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to Internet of Things electronic devices, and in particular to wearable devices and their manufacturing and use technologies. Background Art

[0002] This section is intended to provide a background or context for understanding the embodiments of the present application and is for reference only. The applicant should not be considered to admit that this section belongs to the prior art that has been disclosed before the filing date of the present application.

[0003] With the rapid development of Internet of Things technology, the application of wearable devices is becoming more and more extensive. Among many application scenarios, animal wearable devices have attracted much attention due to their important role in animal husbandry management, animal monitoring and other fields. Animal wearable devices usually include core functional components such as printed circuit board assemblies (PCBA), batteries, sensors, etc.

[0004] In the prior art, the shell packaging of animal wearable devices usually adopts the following method: first, each functional component is fixed on the main board respectively, then the main board is installed in the shell body, and finally the shell cover is sealed by screw fastening or glue bonding. Figure 1 The following is an exploded view of an animal wearable device using this prior art assembly method. This assembly method has the following technical problems:

[0005] 1. The assembly process is complicated and the production efficiency is low. Since multiple parts need to be installed and fixed separately, the assembly process is cumbersome and positioning deviation is prone to occur, affecting product quality.

[0006] 2. Waterproof performance is difficult to guarantee. Traditional shell packaging methods usually rely on sealing rings or glue to achieve waterproofing, but during long-term use, the sealing material is prone to aging or falling off, resulting in waterproof failure.

[0007] 3. The product is large in size and weight. Due to the need to reserve assembly space and fastening structure, the overall size of the product under traditional packaging methods is large, which increases the burden on animals to wear.

[0008] 4. Insufficient reliability. The shell fixed by screws or glue is easy to loosen or crack during animal movement, which reduces the service life of the product.

[0009] 5. High production cost. Traditional packaging methods require the purchase and storage of a large number of spare parts, and the cost of manual assembly is high, which is not conducive to large-scale production of products.

[0010] Therefore, there is an urgent need to provide a new type of wearable device injection molding system to solve the technical problems existing in the prior art, such as poor waterproof performance, complex assembly, large volume and weight, insufficient reliability, and high production cost. Summary of the invention

[0011] The purpose of this application is to provide a wearable device and its injection molding system, opening and manufacturing method, which can solve the technical problems existing in the prior art such as poor waterproof performance, complex assembly, large volume and weight, insufficient reliability and high production cost.

[0012] The present application discloses an injection molding system for a wearable device, comprising: a mold, a bracket, a circuit board and a battery;

[0013] The circuit board and the battery are fixed on the bracket, and the battery provides power for the circuit board;

[0014] The mold has a hollow cavity, and the bracket with the circuit board and the battery fixed thereon is placed in the cavity;

[0015] A portion of the bracket contacts the mold to stably position the bracket in the cavity;

[0016] The circuit board and the battery are both in the cavity and do not contact the inner surface of the cavity;

[0017] The mold includes at least one injection hole communicating the cavity and the outside of the mold.

[0018] In a preferred embodiment, it further includes a sensor and a wireless transceiver electrically connected to the circuit board;

[0019] The sensor and the wireless transceiver are arranged on the circuit board or on the bracket;

[0020] The wireless transceiver and the sensor that does not need to be exposed on the outer surface of the wearable device do not contact the inner surface of the cavity;

[0021] A portion of the outer surface of the sensor exposed on the outer surface of the wearable device needs to contact the inner surface of the mold.

[0022] In a preferred embodiment, the mold is divided into an upper mold and a lower mold;

[0023] The upper mold and the lower mold sandwich the bracket.

[0024] The present application also discloses a wearable device, comprising: a bracket, a circuit board, a battery and a plastic shell;

[0025] The circuit board and the battery are fixed on the bracket, and the battery provides power for the circuit board;

[0026] The plastic shell wraps the bracket, the circuit board and the battery therein by means of integral injection molding.

[0027] In a preferred embodiment, it further includes a sensor and a wireless transceiver electrically connected to the circuit board;

[0028] The sensor and the wireless transceiver are arranged on the circuit board or on the bracket;

[0029] The wireless transceiver and the sensor that does not need to be exposed on the outer surface of the wearable device are wrapped in the plastic shell by injection molding;

[0030] In a preferred example, the circuit board further includes a magnetically controlled switch, the sensor includes an acceleration sensor, and the magnetically controlled switch and the acceleration sensor are enclosed in the plastic housing.

[0031] In a preferred example, the bracket includes a cavity for accommodating the battery, at least one clip is arranged above the cavity, the cavity accommodates the battery, the circuit board is arranged above the battery, and the at least one clip fixes the circuit board and the battery to the bracket.

[0032] In a preferred embodiment, the plastic housing is integrally formed by injection molding at 180-240°C and 0.15-4MPa;

[0033] The material of the plastic housing includes polyamide or thermoplastic polyurethane.

[0034] The present application also discloses a method for turning on a wearable device, wherein the wearable device includes a controller, a magnetically controlled switch, and an acceleration sensor; the method includes:

[0035] In response to an external magnet approaching the wearable device, the magnetically controlled switch turns on power to the controller and the acceleration sensor;

[0036] Within a predetermined time period, the controller detects whether the output of the acceleration sensor satisfies a predetermined pattern;

[0037] In response to the controller not detecting that the output of the acceleration sensor satisfies a predetermined pattern within the predetermined time period, the wearable device enters a sleep mode.

[0038] In a preferred example, in response to the controller detecting that the output of the acceleration sensor satisfies a predetermined pattern, the wearable device enters a normal working mode.

[0039] In a preferred example, the predetermined pattern includes a change characteristic of an output value of the acceleration sensor when the wearable device is moved in a specific posture.

[0040] The present application also discloses a method for opening a wearable device, wherein the wearable device comprises a magnetically controlled switch and a wireless transceiver; the method comprises:

[0041] In response to an external magnet approaching the wearable device, the magnetically controlled switch turns on power to the wireless transceiver;

[0042] Within a predetermined time period, the wireless transceiver detects whether the agreed wireless signal is received;

[0043] In response to the wireless transceiver not receiving the agreed wireless signal within the agreed time period, the wearable device enters a sleep mode.

[0044] In a preferred example, in response to the wireless transceiver receiving the agreed wireless signal, the wearable device enters a normal working mode.

[0045] In a preferred example, the agreed wireless signal is an agreed broadcast signal of a wireless gateway;

[0046] In response to the wireless transceiver receiving the agreed broadcast signal, the wireless transceiver further performs a handshake with the wireless gateway;

[0047] In response to the wireless transceiver successfully handshaking with the wireless gateway, the wearable device enters a normal working mode.

[0048] The present application also discloses a method for manufacturing a wearable device, comprising:

[0049] placing the sensor and the wireless transceiver on the circuit board;

[0050] Fixing the circuit board and the battery on the bracket;

[0051] Placing the bracket in a cavity of a mold, wherein the mold has a hollow cavity, a portion of the bracket contacts the mold to stably arrange the bracket in the cavity, and the circuit board, the battery, and the wireless transceiver are all in the cavity and do not contact the inner surface of the cavity;

[0052] Under the conditions of 180-240° C. and 0.15-4 MPa, injecting into the mold through the injection hole on the mold;

[0053] After the plastic component in the mold is cooled, the mold is opened and the plastic component is taken out.

[0054] In a preferred example, the material of the plastic housing includes polyamide or thermoplastic polyurethane.

[0055] In the embodiments of the present application, by fixing the circuit board and the battery on the bracket and placing the bracket in the mold cavity, and making the bracket contact with the mold while the circuit board and the battery do not contact the inner surface of the cavity, one-piece injection molding can be achieved, avoiding the complex assembly process of multiple parts such as the shell body and the cover plate required in traditional packaging, thereby reducing production costs. By completely covering the electronic components with injection molding materials, excellent waterproof performance is provided, overcoming the problem that traditional packaging relies on sealing rings or glue to seal and is prone to failure. Since fasteners and assembly space are eliminated, the product volume and weight are significantly reduced. The injection molding material and the bracket form an integral structure, which improves the structural strength and solves the problems of insufficient reliability such as the easy loosening of screws and the easy aging of glue in traditional packaging. The positioning design of the bracket ensures the stable position of the electronic components during the injection molding process and improves the production yield.

[0056] Furthermore, the sensors that need to be exposed (such as temperature sensors, humidity sensors, etc.) are partially in contact with the inner surface of the mold to ensure that these sensors can make necessary physical contact with the external environment. Sensors that do not need to be exposed (such as acceleration sensors, gyroscopes, etc.) and wireless transceivers are completely placed in the cavity and do not contact the mold. This design can achieve the best protection effect while ensuring the normal operation of various sensors and avoid damage to sensitive components during the injection molding process.

[0057] Furthermore, by dividing the mold into upper and lower mold halves and sandwiching the bracket in the middle, the assembly process can be simplified, the production efficiency can be improved, and the position accuracy of the bracket can be ensured.

[0058] Furthermore, through the special design of the bracket (provided with a battery cavity and a snap-fit ​​structure), the battery and the circuit board can be reliably fixed to avoid loosening.

[0059] Furthermore, by using specific injection molding process parameters in the temperature range of 180-240° C. and the pressure range of 0.15-4 MPa, it is possible to ensure that the injection molding material can flow fully without damaging the electronic components.

[0060] Furthermore, the selection of polyamide or thermoplastic polyurethane material not only ensures the mechanical strength of the product but also has good processing performance.

[0061] By combining the dual confirmation mechanism of the magnetic switch and the acceleration sensor, it can effectively avoid the device from starting up accidentally, extend the standby time, and provide a convenient way to start up.

[0062] By combining the dual mechanisms of magnetic switch and wireless signal confirmation, as well as the wireless gateway handshake confirmation method, the reliability of device startup can be further improved, false triggering can be avoided, and it can be ensured that the device is connected to the correct gateway.

[0063] Each technical feature disclosed in the above invention content, each technical feature disclosed in each implementation mode and example below, and each technical feature disclosed in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions should be deemed to have been recorded in this specification), unless such combination of technical features is technically infeasible. For example, in one example, feature A+B+C is disclosed, and in another example, feature A+B+D+E is disclosed, and features C and D are equivalent technical means that play the same role. Technically, only one of them can be used, and it is impossible to use them at the same time. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be deemed to have been recorded because it is technically infeasible, while the solution of A+B+C+E should be deemed to have been recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is an exploded diagram of an animal wearable device of the prior art;

[0065] Figure 2 is a schematic structural diagram of a wearable device according to an embodiment of the present application;

[0066] Figure 3 is a schematic diagram of the internal structure and injection-molded housing of a wearable device according to an embodiment of the present application;

[0067] Figure 4 is a schematic diagram of a three-dimensional bottom surface of a wearable device according to an embodiment of the present application;

[0068] Figure 5 is a schematic diagram of a three-dimensional front appearance of a wearable device according to an embodiment of the present application;

[0069] Figure 6 1 is a front view, a side view and a bottom view of a wearable device according to an embodiment of the present application;

[0070] Figure 7 is a planed surface diagram of an injection molding system for a wearable device before casting according to an embodiment of the present application;

[0071] Figure 8 is a plan view of an injection molding system for a wearable device after casting according to an embodiment of the present application;

[0072] Fig. 9is an assembly diagram of a mold and a main body module of an injection molding system for a wearable device before casting according to an embodiment of the present application;

[0073] Fig.10 yes Fig. 9 A schematic diagram of assembly of an injection molding system of a wearable device in another direction;

[0074] Fig.11 is a schematic flow chart of a method for opening a wearable device according to an embodiment of the present application;

[0075] Fig.12 This is a schematic flow chart of a method for opening a wearable device according to an embodiment of the present application;

[0076] Fig.13 is a schematic flow chart of a method for manufacturing a wearable device according to an embodiment of the present application;

[0077] Fig.14 yes Fig. 9 Color cross-section of the injection molding system of a wearable device before pouring;

[0078] Fig.15 yes Fig. 9 Color cross-section of the injection molding system of the wearable device after casting;

[0079] Fig.16 yes Fig. 9 3D schematic diagram of the injection molding system of the wearable device before pouring;

[0080] Fig.17 yes Fig. 9 3D schematic diagram of the injection molding system of the wearable device after casting.

[0081] The reference numerals used in the accompanying drawings are as follows:

[0082] 1: Circuit board

[0083] 2: Battery

[0084] 3: Bracket

[0085] 4: Plastic shell

[0086] 5: Sensor

[0087] 6: Functional position hole

[0088] 7: Upper mold

[0089] 8: Lower mold

[0090] 9: Touch support

[0091] 10: Lower die support

[0092] 11: Cavity

[0093] 12: In-mold casting

[0094] 13: Mould side hole

[0095] 14: Buckle DETAILED DESCRIPTION

[0096] In the following description, many technical details are provided to help readers better understand the present application. However, those skilled in the art can understand that the technical solution claimed in the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0097] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0098] The first embodiment of the present application relates to an injection molding system for a wearable device, such as Figure 7 As shown, the injection molding system of the wearable device generally includes: a mold, a bracket 3, a circuit board 1, a sensor 5, a wireless transceiver and a battery 2. In some embodiments, there may be no sensor 5 or wireless transceiver.

[0099] The circuit board 1 and the battery 2 are fixed on the bracket 3, and the battery 2 supplies power to all electrical components, including the circuit board 1, the sensor 5 and the wireless transceiver.

[0100] The sensor 5 and the wireless transceiver are arranged on the circuit board 1 or the bracket 3 and are electrically connected to the circuit board 1 .

[0101] The mold has a hollow cavity 11, and the bracket 3 with the circuit board 1 and the battery 2 fixed thereto is placed in the cavity 11. The bracket 3 is used to fix or support other components on one hand, and on the other hand, a part of the bracket 3 contacts the mold to stably set the bracket 3 in the cavity 11. The circuit board 1 and the battery 2 are both in the cavity 11 and do not contact the inner surface of the cavity 11. The mold includes at least one injection hole (e.g., a mold side hole 13) connecting the cavity 11 and the outside of the mold.

[0102] The wireless transceiver and the sensor 5 that does not need to be exposed on the outer surface of the wearable device are arranged in the cavity and do not contact the inner surface of the cavity. The sensor 5 that does not need to be exposed on the outer surface of the wearable device may include an acceleration sensor, a gyroscope, a magnetometer, etc.

[0103] A portion of the sensor 5 that needs to be exposed on the outer surface of the wearable device contacts the inner surface of the mold. The sensor 5 that needs to be exposed on the outer surface of the wearable device may include a camera, an ambient light sensor, an infrared sensor, a temperature sensor, a humidity sensor, a UV sensor, an air pressure sensor, and the like.

[0104] Optionally, in one embodiment, the mold is divided into an upper mold half 7 and a lower mold half 8. The upper mold half 7 and the lower mold half 8 sandwich the bracket 3 in the middle. The injection molding system of the first embodiment is used to produce the wearable device of the second embodiment, and the relevant technical details of the first embodiment can be used in the second embodiment, and vice versa. In other embodiments, the mold can also have more components, such as 3 parts or 4 parts.

[0105] Figure 8 yes Figure 7 The schematic diagram of the example after injection molding, where the diagonal part is the injection location.

[0106] The bracket 3, the circuit board 1, the sensor 5, the wireless transceiver and the battery 2 form the main module. Fig. 9 and Fig.10 The assembly relationship between the main mold, the upper mold 7 and the lower mold 8 is shown from different angles.

[0107] Fig.14 It is a color cross-sectional view before pouring, which shows the state where the main mold assembly is placed in the mold cavity and connected and fixed together by the upper mold support column 9 and the lower mold support column 10. The pouring material can enter the mold cavity 11 through the upper and lower mold side holes 13 to complete the pouring process. Fig.15 It is a color cross-sectional view after pouring, in which the yellow represents the in-mold injection, that is, the material injected through the side hole of the mold.

[0108] Fig.16 The state of the main body module placed in the mold before pouring is shown in three-dimensional color. Fig.17 The state after pouring is shown in three-dimensional color. The injection material can be polyamide PA, which is melted at 190-230°C, and a certain pressure is applied for injection molding and then cooled to form.

[0109] The wearable device produced in the first embodiment has the following beneficial effects:

[0110] 1. Excellent waterproof performance and impact resistance: The low-pressure injection molding technology can directly wrap and fix the battery, circuit board and its surface components, effectively preventing moisture and dust from entering the device, while improving the impact resistance of the device, enabling it to work normally in harsh environments.

[0111] 2. Lightweight design: It reduces the burden on animals when wearing them and improves their comfort. This is very important for animal wearable products because overweight equipment may affect the normal activities of animals.

[0112] 3. Reduce production costs: Simplify the production process, do not need traditional assembly methods such as screws, glue, laser welding, etc., and do not need additional shells, packaging materials and fillers. This not only reduces material costs, but also improves production efficiency and reduces labor costs.

[0113] 4. Simple structure and easy to manufacture: Due to the integrated design and low-pressure injection molding technology, the product structure is simpler and easy to manufacture and assemble. This helps to improve the quality and reliability of the product and reduce production costs.

[0114] A second embodiment of the present application relates to a wearable device, such as Figure 2-Figure 6 As shown, the wearable device includes: a circuit board 1, a battery 2, a bracket 3, a sensor 5, a wireless transceiver and a plastic housing 4. In some examples, there may be no sensor 5 or wireless transceiver.

[0115] The circuit board 1 can be a printed circuit board, which is responsible for connecting all electronic components. Some electronic components can be fixed on the circuit board 1 by welding or the like. The circuit board 1 can also be electrically connected to the electronic components fixed on the bracket 3 in the form of a connector.

[0116] The circuit board 1 and the battery 2 are fixed on the bracket 3, and the battery 2 supplies power to all electrical components, including the circuit board 1, the sensor 5 and the wireless transceiver.

[0117] The sensor 5 and the wireless transceiver are arranged on the circuit board 1 or on the bracket 3. The plastic shell 4 wraps the bracket 3, the circuit board 1, the battery 2, the wireless transceiver and the sensor 5 that does not need to be exposed on the outer surface of the wearable device through injection molding. The injection molding material becomes the shell and filler of the device, and has natural waterproof and dustproof properties, impact resistance and lightness. The injection molding method enables the packaged Internet of Things electronic devices to work in harsh environments, improving product reliability and service life. It is particularly suitable for Internet of Things electronic devices, including wearable devices for animals. It meets the characteristics of small size, light weight, waterproof and dustproof, impact resistance and other characteristics of animal wearable devices, and meets the needs of animal management. It can also be used in medical equipment, industrial sensors 5 and other fields, and has broad application prospects.

[0118] Figure 2-Figure 6 The above is only a non-limiting example, and those skilled in the art can design the appearance, internal structure, type and number of sensors, and type and number of wireless transceivers of the wearable device as needed.

[0119] Figure 2-Figure 6 The wireless transceiver is not shown in the figure. The wireless transceiver can be welded in the circuit board 1, or fixed on the bracket 3 and electrically connected to the circuit board 1 through a wire. The wireless transceiver can be of various types, such as Bluetooth, Zigbee, WIFI, 5G, etc. Generally, any wireless transceiver that can operate in a low-power mode can be used. The antenna of the wireless transceiver can be fixed on the bracket 3, and after the plastic shell 4 is formed by injection molding, it is completely wrapped in the plastic shell 4.

[0120] Optionally, in one embodiment, the circuit board 1 further includes a magnetically controlled switch, the sensor 5 includes an acceleration sensor, and the magnetically controlled switch and the acceleration sensor are enclosed in a plastic housing 4 .

[0121] Optionally, in one embodiment, the bracket 3 includes a cavity for accommodating the battery 2, at least one buckle 14 is arranged above the cavity, the cavity accommodates the battery 2, the circuit board 1 is arranged above the battery 2, and at least one buckle fixes the circuit board 1 and the battery 2 on the bracket 3. In some other embodiments, the battery and the circuit board can also be fixed by other means, such as fixing with fasteners, or fixing with welding, etc.

[0122] Optionally, in one embodiment, the battery 2 is a button battery 2 .

[0123] Optionally, in another embodiment, the battery 2 is a rechargeable battery, such as a lithium-ion battery, a sodium-ion battery, etc. The wearable device further includes a wireless charging module, which is also wrapped in the plastic housing 4 and is used to charge the battery 2 .

[0124] Optionally, in one embodiment, the wearable device is not equipped with a wireless transceiver, but the data collected by the sensor 5 is transmitted to an external computer in a wired manner through a data transmission interface (such as a USB port).

[0125] Optionally, in one embodiment, the plastic shell 4 is integrally molded by injection molding at 180-240°C and 0.15-4MPa. The material of the plastic shell 4 is preferably a low-temperature and low-pressure injection molding material, such as polyamide (PA) or thermoplastic polyurethane (TPU). Such materials have the following characteristics: First, such materials have excellent low-temperature processing properties. Its melting point or softening point is generally between 80-160°C, and it can be injection molded at a lower temperature. This property is particularly important for protecting temperature-sensitive electronic components. For example, when encapsulating electronic devices containing lithium batteries, it can effectively prevent the battery from performing poorly or causing safety hazards due to high temperatures.

[0126] Secondly, this type of material has good low-pressure filling performance. The mold can be fully filled at a relatively low pressure of 2-10MPa, which not only reduces the requirements for injection molding equipment, but more importantly, it can reduce the pressure shock to internal electronic components and avoid damage to precision electronic devices due to high pressure.

[0127] Thirdly, this type of material has good flexibility and sealing after molding. The material can better adapt to electronic components of different shapes and form a complete sealing layer around them. This feature can effectively prevent the intrusion of external factors such as moisture and dust, and protect the normal operation of internal components.

[0128] Finally, this type of material has excellent bonding properties to a variety of materials and can be firmly bonded to the surfaces of different materials such as plastic accessories, metal pins, and circuit boards to ensure the stability of the overall structure.

[0129] To further improve the material properties, various functional additives can be added:

[0130] 1) Plasticizer: used to reduce the hardness and processing temperature of the material and improve the flexibility of the product;

[0131] 2) Lubricant: improves the fluidity of the material in the mold and makes the injection molding process smoother;

[0132] 3) Antioxidant: Prevents materials from oxidative aging during processing and use, and extends product service life.

[0133] The combined effect of the above material properties and additives makes the injection molded wearable devices have excellent waterproof performance, structural strength and service life, which are particularly suitable for use in harsh environments.

[0134] The third embodiment of the present application relates to a method for opening a wearable device, which is applied to a wearable device molded by one-piece casting and injection molding (such as the wearable device described in the second embodiment). All electronic components of the wearable device are tightly wrapped with injection molding materials to significantly improve the reliability of the device. Due to the use of an one-piece casting and injection molding process, in order to have a better waterproof effect, traditional physical buttons or interfaces may no longer be applicable. Therefore, this embodiment uses a magnetically controlled switch combined with an acceleration sensor. The dual confirmation mechanism realizes reliable opening of the device.

[0135] Specifically, the wearable device includes a controller, a magnetic switch and an acceleration sensor. Fig.11 As shown, the opening method specifically includes the following steps:

[0136] In step 101, in response to an external magnet approaching the wearable device, the magnetic switch detects a change in magnetic field strength or direction, and then quickly responds and turns on the power of the controller and the acceleration sensor in a non-contact manner. This non-contact switch control method not only avoids mechanical wear caused by physical contact, but also enables the device to work stably in special environments such as humid and dusty environments, significantly improving the environmental adaptability and service life of the device.

[0137] There are many ways to bring the external magnet close to the wearable device. The staff may hold the magnet close to the wearable device, move the wearable device close to the magnet, or energize the electromagnet near the wearable device, etc.

[0138] Magnetic switches can be made of reed switches or Hall switches. Reed switches consist of two magnetic reeds sealed in a glass tube filled with inert gas. They can work without power supply. When an external magnet approaches, the reeds attract each other under the action of the magnetic field and contact and conduct, thus connecting the relevant circuits. Hall switches integrate Hall elements and signal processing circuits into one chip, which can directly output digital signals. Although power supply is required, the power consumption is very low.

[0139] Then, the system proceeds to step 102. To prevent false triggering due to environmental electromagnetic interference, the system activates a secondary confirmation mechanism based on the acceleration sensor. Within a predetermined time (e.g., 5-60 seconds), the controller continuously detects whether the output of the acceleration sensor meets the predetermined motion pattern. If the controller detects that the output of the acceleration sensor meets the predetermined pattern within the predetermined time, the system proceeds to step 103, otherwise, the system proceeds to step 104.

[0140] The predetermined pattern refers to the changing characteristics of the output value captured by the acceleration sensor when the wearable device is moved by the user in a specific posture. For example, the specific posture can be:

[0141] 1. Draw a complete circle in the air: At this time, the acceleration sensor will detect a periodic, approximately circular acceleration change pattern;

[0142] 2. Draw a cross in the air: At this time, the accelerometer will detect the linear motion acceleration change pattern in two perpendicular directions;

[0143] 3. Swinging horizontally left and right: At this time, the acceleration sensor will detect that the absolute value of the horizontal acceleration exceeds the preset threshold twice within a preset time period, and the direction of the horizontal acceleration when exceeding the preset threshold is opposite.

[0144] 4. Or other predefined, sufficiently specific movement postures (e.g., Z, X, L-shaped movements, etc.).

[0145] This double confirmation mechanism (magnetic switch + specific motion gesture) can effectively prevent the device from being accidentally awakened due to electromagnetic interference in the environment, thereby avoiding unnecessary power consumption and extending the standby time of the device.

[0146] In step 103, when the system confirms the triggering of the magnetic switch and the completion of the specific motion gesture, the wearable device will enter the normal working mode and start to execute its preset function.

[0147] In step 104, if the correct motion posture is not detected within the predetermined time, the wearable device will automatically enter the sleep mode to save power. In the sleep mode, only the magnetic switch maintains the minimum power consumption working state, and other modules are in a power-off state until the magnetic switch is triggered next time.

[0148] This implementation combines an integrated casting injection molding process with an intelligent switch mechanism, which not only ensures the waterproof and dustproof level and overall reliability of the device, but also realizes convenient and reliable switch control, providing a new solution for the design of wearable devices.

[0149] The fourth embodiment of the present application relates to a method for opening a wearable device, wherein the wearable device includes a magnetically controlled switch and a wireless transceiver. The method is an alternative to the third embodiment and can also be used for the wearable device described in the second embodiment. Fig.12 As shown, the opening method includes:

[0150] In step 201, in response to an external magnet approaching the wearable device, the magnetic switch turns on the power of the wireless transceiver. Specifically, when the magnetic field strength generated by the external magnet exceeds a preset threshold, the magnetic switch is triggered and closed, thereby turning on the power of the wireless transceiver. The magnetic switch can be implemented using a reed switch, a Hall sensor, or other magnetic sensitive elements. The external magnet can be a permanent magnet or an electromagnet, and its magnetic field strength needs to be sufficient to trigger the action of the magnetic switch.

[0151] Then, the process proceeds to step 202, where the wireless transceiver detects whether the agreed wireless signal is received within the predetermined time period. If the wireless transceiver receives the agreed wireless signal within the predetermined time period, the process proceeds to step 203, otherwise, the process proceeds to step 204. The predetermined time period can be set as required, for example but not limited to 1-60 seconds.

[0152] In step 203, the wearable device enters a normal working mode.

[0153] In step 204, the wearable device enters a sleep mode.

[0154] Optionally, in one embodiment, the agreed wireless signal is an agreed broadcast signal of a wireless gateway. In response to the wireless transceiver receiving the agreed broadcast signal, the wireless transceiver further shakes hands with the wireless gateway. The handshake process may include steps such as identity authentication and communication parameter negotiation, and a common security authentication protocol in the industry may be used. In response to the wireless transceiver successfully handshaking with the wireless gateway, the wearable device enters a normal working mode. This can effectively reduce the situation of accidental touch-on, thereby extending battery life and increasing the standby time of the wearable device.

[0155] The fifth embodiment of the present application relates to a wearable device manufacturing method, which is used to manufacture the wearable device described in the second embodiment, and the technical details of the second embodiment can be used in this embodiment. Fig.13 As shown, the manufacturing method includes:

[0156] In step 301, the sensor and the wireless transceiver are placed on a circuit board. For example, the sensor and the wireless transceiver can be soldered to a preset soldering pad position on the circuit board using a surface mount technology (SMT).

[0157] Then, the process proceeds to step 302, where the circuit board and the battery are fixed to the bracket, for example, by snaps, fasteners, welding, or gluing.

[0158] Then, step 303 is entered to place the bracket in the cavity of the mold. The mold has a hollow cavity. A portion of the bracket contacts the mold to stably set the bracket in the cavity. The circuit board, battery and wireless transceiver are all in the cavity and do not contact the inner surface of the cavity.

[0159] Then, step 304 is entered to inject into the mold through the injection hole on the mold under the conditions of 180-240° C. and 0.15-4 MPa. The injection material can be polyamide or thermoplastic polyurethane. The characteristics of the injection material are described in detail in the second embodiment and will not be repeated here.

[0160] Then, the process proceeds to step 305 , where the plastic component in the mold is cooled, and then the mold is opened and the plastic component is taken out.

[0161] The above manufacturing method realizes the adaptive shell packaging of IoT devices, and adopts low-pressure injection molding technology to provide a new packaging solution for IoT electronic devices, especially animal wearable devices. This technology has the advantages of waterproof and dustproof, impact resistance, light weight, low cost, etc., and has broad application prospects.

[0162] It should be noted that, in the present application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "include one" do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. In the present application, if it is mentioned that a certain action is performed according to a certain element, it means at least the meaning of performing the action according to the element, which includes two situations: performing the action only according to the element and performing the action according to the element and other elements. Multiple, multiple, multiple, etc. expressions include 2, 2 times, 2 kinds and more than 2, more than 2 times, more than 2 kinds.

[0163] This specification includes combinations of the various embodiments described herein. Individual references to an embodiment (e.g., "one embodiment" or "some embodiments" or "preferred embodiments") do not necessarily refer to the same embodiment; however, these embodiments are not mutually exclusive unless indicated as mutually exclusive or it is clear to a person skilled in the art that they are mutually exclusive. It should be noted that the word "or" is used in this specification in a non-exclusive sense unless the context clearly indicates or requires otherwise.

[0164] All documents mentioned in this application are considered to be included in the disclosure of this application as a whole, so that they can be used as the basis for modification when necessary. In addition, it should be understood that after reading the content of this application, those skilled in the art can make various changes or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. An injection molding system for a wearable device, characterized in that: include: molds, brackets, circuit boards, and batteries; The circuit board and the battery are fixed on the bracket, and the battery provides power for the circuit board; The mold has a hollow cavity, and the bracket with the circuit board and the battery fixed thereon is placed in the cavity; A portion of the bracket contacts the mold to stably position the bracket in the cavity; The circuit board and the battery are both in the cavity and do not contact the inner surface of the cavity; The mold includes at least one injection hole communicating the cavity and the outside of the mold.

2. The injection molding system for a wearable device according to claim 1, characterized in that: Also included are a sensor and a wireless transceiver electrically connected to the circuit board; The sensor and the wireless transceiver are arranged on the circuit board or on the bracket; The wireless transceiver and the sensor that does not need to be exposed on the outer surface of the wearable device do not contact the inner surface of the cavity; A portion of the outer surface of the sensor exposed on the outer surface of the wearable device needs to contact the inner surface of the mold.

3. The injection molding system for a wearable device according to claim 1, characterized in that: The mold is divided into an upper mold and a lower mold; The upper mold and the lower mold sandwich the bracket.

4. A wearable device, characterized in that: include: Brackets, circuit boards, batteries and plastic housings; The circuit board and the battery are fixed on the bracket, and the battery provides power for the circuit board; The plastic shell wraps the bracket, the circuit board and the battery therein by means of integral injection molding.

5. The wearable device according to claim 4, characterized in that: Also included are a sensor and a wireless transceiver electrically connected to the circuit board; The sensor and the wireless transceiver are arranged on the circuit board or on the bracket; The wireless transceiver and the sensor that does not need to be exposed on the outer surface of the wearable device are wrapped in the plastic shell by injection molding.

6. The wearable device according to claim 5, characterized in that: The circuit board further comprises a magnetically controlled switch, the sensor comprises an acceleration sensor, and the magnetically controlled switch and the acceleration sensor are wrapped in the plastic housing.

7. The wearable device according to claim 4, characterized in that: The bracket includes a cavity for accommodating the battery, at least one clip is arranged above the cavity, the cavity accommodates the battery, the circuit board is arranged above the battery, and the at least one clip fixes the circuit board and the battery on the bracket.

8. The wearable device according to claim 7, characterized in that: The plastic housing is integrally formed by injection molding at 180-240°C and 0.15-4MPa; The material of the plastic housing includes polyamide or thermoplastic polyurethane.

9. A method for opening a wearable device, characterized in that: The wearable device includes a controller, a magnetically controlled switch and an acceleration sensor; and the method includes: In response to an external magnet approaching the wearable device, the magnetically controlled switch turns on power to the controller and the acceleration sensor; Within a predetermined time period, the controller detects whether the output of the acceleration sensor satisfies a predetermined pattern; In response to the controller not detecting that the output of the acceleration sensor satisfies a predetermined pattern within the predetermined time period, the wearable device enters a sleep mode.

10. The method for opening a wearable device according to claim 9, characterized in that: In response to the controller detecting that the output of the acceleration sensor satisfies a predetermined pattern, the wearable device enters a normal working mode.

11. The method for opening a wearable device according to claim 9, characterized in that: The predetermined pattern includes a change characteristic of an output value of the acceleration sensor when the wearable device is moved in a specific posture.

12. A method for opening a wearable device, characterized in that: The wearable device includes a magnetically controlled switch and a wireless transceiver; the method includes: In response to an external magnet approaching the wearable device, the magnetically controlled switch turns on power to the wireless transceiver; Within a predetermined time period, the wireless transceiver detects whether the agreed wireless signal is received; In response to the wireless transceiver not receiving the agreed wireless signal within the agreed time period, the wearable device enters a sleep mode.

13. The method for opening a wearable device according to claim 12, characterized in that: In response to the wireless transceiver receiving the agreed wireless signal, the wearable device enters a normal working mode.

14. The method for opening a wearable device according to claim 12, characterized in that: The agreed wireless signal is an agreed broadcast signal of the wireless gateway; In response to the wireless transceiver receiving the agreed broadcast signal, the wireless transceiver further performs a handshake with the wireless gateway; In response to the wireless transceiver successfully handshaking with the wireless gateway, the wearable device enters a normal working mode.

15. A method for manufacturing a wearable device, characterized in that: include: placing the sensor and the wireless transceiver on the circuit board; Fixing the circuit board and the battery on the bracket; Placing the bracket in a cavity of a mold, wherein the mold has a hollow cavity, a portion of the bracket contacts the mold to stably arrange the bracket in the cavity, and the circuit board, the battery, and the wireless transceiver are all in the cavity and do not contact the inner surface of the cavity; Under the conditions of 180-240° C. and 0.15-4 MPa, injecting into the mold through the injection hole on the mold; After the plastic component in the mold is cooled, the mold is opened and the plastic component is taken out.

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