Wearable equipment and injection molding system thereof

Abstract

The utility model relates to electronic equipment of the internet of things, and discloses wearable equipment and an injection molding system thereof. 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 invention 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 this application.

[0003] With the rapid development of the Internet of Things (IoT), the application of wearable devices is becoming increasingly widespread. Among their numerous application scenarios, animal wearable devices have attracted significant attention due to their crucial role in livestock management and animal monitoring. Animal wearable devices typically include core functional components such as printed circuit board assemblies (PCBAs), batteries, and sensors.

[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 separately, then the main board is installed in the shell body, and finally the shell cover is sealed by screw fastening or gluing. Figure 1 The following is an exploded view of an animal wearable device using this existing assembly method. This assembly method has the following technical problems:

[0005] 1. The assembly process is complex and the production efficiency is low. Since multiple parts need to be installed and fixed separately, the assembly process is cumbersome and prone to positioning deviation, which affects 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 the animal.

[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 costs. Traditional packaging methods require the purchase and storage of a large number of parts and components, and the manual assembly costs are high, which is not conducive to large-scale production.

[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 existing technology, 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, 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 to 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 with 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 the bracket;

[0020] The wireless transceiver and sensors that do 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 that needs to be exposed on the outer surface of the wearable device is in contact with 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 to the circuit board;

[0026] The plastic shell wraps the bracket, the circuit board and the battery therein by 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 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 enclosed in the plastic housing 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 provided above the cavity, the cavity accommodates the battery, the circuit board is provided 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] In an embodiment 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 material, 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 volume and weight of the product 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 in traditional packaging such as easy loosening of screws and easy aging of glue. The positioning design of the bracket ensures the stable position of the electronic components during the injection molding process, thereby improving the production yield.

[0035] Furthermore, sensors that need to be exposed (such as temperature and humidity sensors) are partially placed in contact with the inner surface of the mold, ensuring they have the necessary physical contact with the external environment. Sensors that do not need to be exposed (such as accelerometers and gyroscopes) and wireless transceivers are placed completely within the cavity and out of contact with the mold. This design ensures the normal operation of various sensors while achieving optimal protection and preventing damage to sensitive components during the injection molding process.

[0036] Furthermore, by dividing the mold into upper and lower half molds and sandwiching the bracket in the middle, the assembly process can be simplified, production efficiency can be improved, and the position accuracy of the bracket can be guaranteed at the same time.

[0037] Furthermore, through the special design of the bracket (provided with a battery cavity and a snap structure), the battery and the circuit board can be reliably fixed to avoid loosening.

[0038] Furthermore, specific injection molding process parameters within the temperature range of 180-240°C and the pressure range of 0.15-4MPa are used to ensure that the injection molding material can flow fully without damaging the electronic components.

[0039] Furthermore, the use of polyamide or thermoplastic polyurethane materials not only ensures the mechanical strength of the product but also has good processing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is an exploded diagram of an animal wearable device of the prior art;

[0041] Figure 2 is a schematic structural diagram of a wearable device according to an embodiment of the present application;

[0042] Figure 3 is a schematic diagram of the internal structure and injection-molded housing of a wearable device according to one embodiment of the present application;

[0043] Figure 4 is a schematic diagram of the three-dimensional appearance of the bottom surface of a wearable device according to one embodiment of the present application;

[0044] Figure 5 is a schematic diagram of the front three-dimensional appearance of a wearable device according to one embodiment of the present application;

[0045] 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;

[0046] Figure 7 This is a plan view of an injection molding system for a wearable device before casting according to one embodiment of the present application;

[0047] Figure 8is a plan view of an injection molding system for a wearable device after casting according to one embodiment of the present application;

[0048] Figure 9 1 is a schematic diagram of the assembly of a mold and a main body module of an injection molding system for a wearable device before casting according to one embodiment of the present application;

[0049] Figure 10 yes Figure 9 A schematic diagram of an assembly of an injection molding system for a wearable device in another direction;

[0050] Figure 11 This is a flowchart of a method for turning on a wearable device according to an embodiment of the present application;

[0051] Figure 12 This is a flowchart of a method for turning on a wearable device according to an embodiment of the present application;

[0052] Figure 13 The figure is a flow chart of a method for manufacturing a wearable device according to an embodiment of the present application.

[0053] The reference numerals used in the accompanying drawings are as follows:

[0054] 1: Circuit board

[0055] 2: Battery

[0056] 3: Bracket

[0057] 4: Plastic shell

[0058] 5: Sensor

[0059] 6: Functional position hole

[0060] 7: Upper mold

[0061] 8: Lower mold

[0062] 9: Touch support

[0063] 10: Lower die support

[0064] 11: Cavity

[0065] 12: In-mold casting

[0066] 13: Mold side hole

[0067] 14: Buckle DETAILED DESCRIPTION

[0068] In the following description, many technical details are provided to help readers better understand this application. However, those skilled in the art will understand that even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented.

[0069] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0070] 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.

[0071] The circuit board 1 and the battery 2 are fixed on the bracket 3. The battery 2 supplies power to all electrical components, including the circuit board 1, the sensor 5 and the wireless transceiver.

[0072] 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 .

[0073] The mold has a hollow cavity 11, in which a bracket 3 holding a circuit board 1 and a battery 2 is placed. Bracket 3 is used to secure or support other components. A portion of bracket 3 contacts the mold to stably position bracket 3 within cavity 11. Both circuit board 1 and battery 2 are within cavity 11 and do not contact the inner surface of cavity 11. The mold includes at least one injection hole (e.g., mold side hole 13) connecting cavity 11 to the exterior of the mold.

[0074] The wireless transceiver and the sensor 5 that does not need to be exposed on the outer surface of the wearable device are set 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 accelerometer, a gyroscope, a magnetometer, etc.

[0075] 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.

[0076] 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. The injection molding system of the first embodiment is used to produce the wearable device of the second embodiment. The relevant technical details of the first embodiment can be applied to the second embodiment, and vice versa. In other embodiments, the mold can also have more components, such as three or four parts.

[0077] Figure 8 yes Figure 7 The schematic diagram of the example after injection molding is shown, where the diagonal line part indicates the injection location.

[0078] The bracket 3, circuit board 1, sensor 5, wireless transceiver and battery 2 form the main module. Figure 9 and Figure 10 The assembly relationship between the main body module, the upper half mold 7 and the lower half mold 8 is shown from different angles.

[0079] The wearable device produced in the first embodiment has the following beneficial effects:

[0080] 1. Excellent waterproof performance and impact resistance: The use of 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. At the same time, it improves the impact resistance of the device, enabling it to work normally in harsh environments.

[0081] 2. Lightweight design: It reduces the burden on animals when wearing and improves their comfort. This is very important for animal wearable products because overweight equipment may affect the normal activities of animals.

[0082] 3. Reduced production costs: The simplified production process eliminates the need for traditional assembly methods such as screws, glue, and laser welding, and eliminates the need for additional housings, packaging materials, and fillers. This not only reduces material costs, but also improves production efficiency and reduces labor costs.

[0083] 4. Simple structure and easy to manufacture: Due to the use of integrated design and low-pressure injection molding technology, the product structure is simpler and easier to manufacture and assemble. This helps to improve product quality and reliability and reduce production costs.

[0084] The 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, the sensor 5 or the wireless transceiver may not be present.

[0085] The circuit board 1 can be a printed circuit board, which is responsible for connecting all electronic components. Some electronic components can be fixed to the circuit board 1 by welding or other methods. The circuit board 1 can also be electrically connected to the electronic components fixed to the bracket 3 in the form of connectors.

[0086] The circuit board 1 and the battery 2 are fixed on the bracket 3. The battery 2 supplies power to all electrical components, including the circuit board 1, the sensor 5 and the wireless transceiver.

[0087] The sensor 5 and the wireless transceiver are arranged on the circuit board 1 or on the bracket 3. The plastic shell 4 encapsulates 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 encapsulated IoT electronic devices to work in harsh environments, improving product reliability and service life. It is particularly suitable for IoT 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.

[0088] 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.

[0089] Figure 2-Figure 6 The wireless transceiver is not shown. The wireless transceiver can be soldered to the circuit board 1 or fixed to the bracket 3 and electrically connected to the circuit board 1 via wires. 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 to the bracket 3 and completely enclosed in the plastic housing 4 after injection molding.

[0090] 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 .

[0091] Optionally, in one embodiment, the bracket 3 includes a cavity for accommodating the battery 2, with at least one clip 14 disposed above the cavity. The cavity accommodates the battery 2, the circuit board 1 is disposed above the battery 2, and the at least one clip secures the circuit board 1 and the battery 2 to the bracket 3. In other embodiments, the battery and the circuit board may be secured by other means, such as by fasteners or welding.

[0092] Optionally, in one embodiment, the battery 2 is a button battery 2 .

[0093] 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, also enclosed in the plastic housing 4, for charging the battery 2.

[0094] Optionally, in one embodiment, the wearable device is not equipped with a wireless transceiver, but transmits the data collected by the sensor 5 to an external computer in a wired manner through a data transmission interface (such as a USB port).

[0095] Optionally, in one embodiment, the plastic housing 4 is integrally molded by injection molding under the conditions of 180-240°C and 0.15-4MPa. The material of the plastic housing 4 is preferably a low-temperature, 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. Their melting point or softening point is generally between 80-160°C, and they can be injection molded at lower temperatures. This characteristic 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 creating safety hazards due to high temperatures.

[0096] Secondly, this type of material has excellent low-pressure filling performance. It can fully fill the mold 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 impact on internal electronic components and prevent damage to precision electronic devices due to high pressure.

[0097] Thirdly, these materials exhibit excellent flexibility and sealing properties after molding. They can better adapt to electronic components of varying shapes and form a complete sealing layer around them. This property effectively prevents the intrusion of external factors such as moisture and dust, protecting the normal operation of internal components.

[0098] 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, ensuring the stability of the overall structure.

[0099] To further improve material properties, various functional additives can be added:

[0100] 1) Plasticizer: used to reduce the hardness and processing temperature of the material and improve the flexibility of the product;

[0101] 2) Lubricant: Improves the fluidity of the material in the mold and makes the injection molding process smoother;

[0102] 3) Antioxidant: Prevents the material from oxidative aging during processing and use, and extends the service life of the product.

[0103] The combined effect of the above material properties and additives gives injection-molded wearable devices excellent waterproof performance, structural strength and service life, making them particularly suitable for use in harsh environments.

[0104] The third embodiment of the present application relates to a method for opening a wearable device, which is applied to a wearable device formed 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 material 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 adopts a dual confirmation mechanism of a magnetic control switch combined with an acceleration sensor to achieve reliable opening of the device.

[0105] Specifically, the wearable device includes a controller, a magnetic switch and an acceleration sensor. Figure 11 As shown, this opening method specifically includes the following steps:

[0106] In step 101, in response to an external magnet approaching the wearable device, the magnetic switch detects changes in magnetic field strength or direction and rapidly switches on the controller and accelerometer 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 operate stably in harsh environments such as humid and dusty environments, significantly improving the device's environmental adaptability and service life.

[0107] There are many ways to bring the external magnet close to the wearable device. A staff member may hold the magnet close to the wearable device, move the wearable device close to the magnet, or energize an electromagnet near the wearable device, etc.

[0108] Magnetic switches can be implemented using reed switches or Hall effect switches. A reed switch consists of two magnetic reeds sealed in a glass tube filled with an inert gas. It operates without power. When an external magnet approaches, the reeds attract each other under the influence of the magnetic field, causing contact and conduction, thus connecting the relevant circuit. A Hall effect switch integrates a Hall effect element and signal processing circuitry into a single chip, directly outputting digital signals. While it requires power, its power consumption is very low.

[0109] Next, 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 accelerometer. Over a predetermined period (e.g., 5-60 seconds), the controller continuously checks whether the accelerometer output meets the predetermined motion pattern. If the controller detects that the accelerometer output meets the predetermined motion pattern within the predetermined period, the system proceeds to step 103; otherwise, the system proceeds to step 104.

[0110] 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:

[0111] 1. Draw a complete circle in the air: The accelerometer will detect a periodic, approximately circular acceleration pattern.

[0112] 2. Draw a cross in the air: The accelerometer will detect two perpendicular linear motion acceleration patterns.

[0113] 3. Swing horizontally left and right: At this time, the acceleration sensor will detect that the absolute value of the horizontal acceleration exceeds the predetermined threshold twice within a predetermined time period, and the direction of the horizontal acceleration when exceeding the predetermined threshold is opposite.

[0114] 4. Or other predefined, sufficiently specific motion gestures (e.g., Z, X, L-shaped motions, etc.).

[0115] This dual confirmation mechanism (magnetic switch + specific motion gesture) can effectively prevent the device from being accidentally awakened by electromagnetic interference in the environment, thereby avoiding unnecessary power consumption and extending the device's standby time.

[0116] 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 perform its preset functions.

[0117] In step 104, if the correct motion gesture is not detected within a predetermined time, the wearable device automatically enters sleep mode to save power. In sleep mode, only the magnetic switch maintains a minimum power consumption state, while other modules are powered off until the magnetic switch is triggered again.

[0118] This implementation combines an integrated casting injection molding process with an intelligent switch mechanism, ensuring the device's waterproof and dustproof rating and overall reliability while achieving convenient and reliable switch control, providing a new solution for the design of wearable devices.

[0119] The fourth embodiment of the present application relates to a method for opening a wearable device, wherein the wearable device includes a magnetic switch and a wireless transceiver. This method is an alternative to the third embodiment and can also be used for the wearable device described in the second embodiment. Figure 12 As shown, the opening method includes:

[0120] In step 201, in response to an external magnet approaching the wearable device, a magnetically controlled switch powers on the wireless transceiver. Specifically, when the magnetic field strength generated by the external magnet exceeds a preset threshold, the magnetically controlled switch is triggered and closed, thereby turning on the wireless transceiver. The magnetically controlled switch can be implemented using a reed switch, a Hall effect sensor, or other magnetically sensitive element. The external magnet can be a permanent magnet or an electromagnet, and its magnetic field strength must be sufficient to trigger the magnetic switch.

[0121] Next, the process proceeds to step 202, where the wireless transceiver detects whether the agreed wireless signal is received within a 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 desired, for example, but not limited to, 1-60 seconds.

[0122] In step 203, the wearable device enters a normal working mode.

[0123] In step 204 , the wearable device enters a sleep mode.

[0124] Optionally, in one embodiment, the agreed wireless signal is a broadcast signal from a wireless gateway. In response to the wireless transceiver receiving the broadcast signal, the wireless transceiver further performs a handshake with the wireless gateway. The handshake process may include steps such as identity authentication and communication parameter negotiation, and may utilize industry-standard security authentication protocols. In response to a successful handshake between the wireless transceiver and the wireless gateway, the wearable device enters normal operating mode. This effectively reduces accidental activation, thereby extending battery life and increasing the standby time of the wearable device.

[0125] 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. The technical details of the second embodiment can be used in this embodiment. Figure 13 As shown, the manufacturing method includes:

[0126] In step 301, a sensor and a wireless transceiver are placed on a circuit board. For example, the sensor and the wireless transceiver can be soldered to predetermined pads on the circuit board using a surface mount technology (SMT).

[0127] Then, step 302 is performed to fix the circuit board and the battery to the bracket, for example, by snaps, fasteners, welding, or gluing.

[0128] 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.

[0129] Then, step 304 is performed, whereby the mold is injected through the injection hole in the mold at 180-240°C and 0.15-4 MPa. The injection molding material may be polyamide or thermoplastic polyurethane. The characteristics of the injection molding material are described in detail in the second embodiment and will not be repeated here.

[0130] 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.

[0131] This manufacturing method achieves adaptive housing packaging for IoT devices. Using low-pressure injection molding technology, it provides a new packaging solution for IoT electronic devices, particularly wearable devices for animals. This technology offers advantages such as waterproof and dustproof, impact resistance, lightweight, and low cost, and has broad application prospects.

[0132] It should be noted that, in this application, relational terms such as first and second are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. Without further restriction, an element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the process, method, article, or device comprising the element. In this application, if it is mentioned that an action is performed according to a certain element, it means that the action is performed at least according to that element, including two situations: performing the action only according to that element, and performing the action according to that element and other elements. Expressions such as "multiple," "multiple," and "multiple" include 2, 2 times, 2 kinds, and more than 2, more than 2 times, and more than 2 kinds.

[0133] This specification includes combinations of the various embodiments described herein. Separate 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 such or clear to one skilled in the art. 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.

[0134] All documents mentioned in this application are considered to be included in their entirety in the disclosure of this application so that they can be used as a basis for modification when necessary. In addition, it should be understood that after reading the contents of this application, those skilled in the art may 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 to 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 with the cavity and the outside of the mold.

2. The injection molding system for a wearable device according to claim 1, wherein: 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 the bracket; The wireless transceiver and sensors that do 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 that needs to be exposed on the outer surface of the wearable device is in contact with the inner surface of the mold.

3. A wearable device, characterized in that: include: bracket, circuit board, battery and plastic casing; The circuit board and the battery are fixed on the bracket, and the battery provides power to the circuit board; The plastic shell wraps the bracket, the circuit board and the battery therein by integral injection molding.

4. The wearable device according to claim 3, wherein: 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 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.

5. The wearable device according to claim 4, wherein: 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.

6. The wearable device according to claim 3, wherein: The bracket includes a cavity for accommodating the battery, at least one clip is provided above the cavity, the cavity accommodates the battery, the circuit board is provided above the battery, and the at least one clip fixes the circuit board and the battery to the bracket.

7. The wearable device according to claim 6, wherein: 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.

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