A small volume shaver

Abstract

This application relates to the field of shavers, providing a small-volume shaver including a blade holder and a handle connected vertically. The handle contains a first circuit board, a second circuit board, a third circuit board, and a drive assembly. The third circuit board is parallel to the bottom end face of the handle, and the first and second circuit boards are respectively perpendicularly inserted into both sides of the third circuit board and distributed on both sides of the handle. The drive assembly is coaxially disposed inside the handle and positioned between the first and second circuit boards. This application divides the entire circuit board into three sub-functional sub-boards. The third circuit board is parallel to the bottom end face of the handle, and the first and second circuit boards are perpendicularly inserted into both sides of the third circuit board, effectively reducing the overall height of the shaver. Furthermore, the drive assembly is perpendicularly connected to the third circuit board and the transmission component within the blade holder and is positioned between the first and second circuit boards, resulting in higher space utilization inside the handle and a significant reduction in product size.

Description

Technical Field

[0001] This utility model relates to the field of razors, and more specifically to a small-volume razor. Background Technology

[0002] Most current shavers integrate multiple functional modules onto a single circuit board, resulting in a large circuit board size. This extended length increases the overall height of the shaver, leading to a larger product size. This increased size not only reduces the shaver's portability but also makes it inconvenient for users, affecting comfort and operational flexibility when holding the shaver.

[0003] Furthermore, the large circuit board occupies a significant amount of space inside the shaver, reducing the utilization rate of internal space. This means that areas inside the shaver that could have been used to optimize battery capacity, add protective structures, or other innovative functions are unnecessarily wasted, thus limiting the shaver's potential for performance improvements and functional expansion, and also affecting the overall design optimization of the product. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a small-volume shaver that divides the entire circuit board into three sub-functional boards: a first circuit board, a second circuit board, and a third circuit board. The third circuit board is arranged parallel to the bottom end face of the handle, while the first and second circuit boards are perpendicularly inserted into the two sides of the third circuit board. This significantly reduces the area occupied by the circuit board inside the handle, effectively lowering the overall height of the shaver. Furthermore, the drive component is perpendicularly connected to the third circuit board and the transmission component inside the shaver holder, and is located relatively between the first and second circuit boards, resulting in higher space utilization inside the handle. This significantly reduces the product's size, improving portability and ease of use.

[0005] To achieve the above objectives, this utility model provides a small-volume shaver, including a blade holder and a handle connected vertically.

[0006] The handle is internally provided with a first circuit board, a second circuit board, a third circuit board, and a drive assembly; the third circuit board is arranged parallel to the bottom end face of the handle, and the first circuit board and the second circuit board are respectively vertically inserted into the two sides of the third circuit board and distributed on both sides of the handle; the drive assembly is coaxially arranged inside the handle and is located between the first circuit board and the second circuit board, and the drive assembly is vertically connected to the third circuit board and the transmission assembly in the tool holder.

[0007] In some embodiments, a battery assembly and a fourth circuit board electrically connected to the third circuit board are also included, the battery assembly and the fourth circuit board being disposed at opposite ends of the first circuit board and the second circuit board and vertically inserted into the third circuit board;

[0008] The battery assembly, the first circuit board, the fourth circuit board, and the second circuit board are sequentially arranged around the drive assembly in a circumferential manner around the handle.

[0009] In some embodiments, the first circuit board and the second circuit board are symmetrically arranged along the central axis of the handle and extend inward toward one side of the handle, the battery assembly is disposed at the first end of the first circuit board and the second circuit board, and the fourth circuit board is disposed at the tail end of the first circuit board and the second circuit board.

[0010] In some embodiments, the first circuit board is adapted to connect a switch component on one side of the handle, the second circuit board is adapted to connect a shift component on the other side of the handle, the switch component and the shift component are symmetrically arranged on both sides of the handle; the fourth circuit board is adapted to connect a display component on the same side of the handle.

[0011] In some embodiments, the battery assembly includes a battery module and a connecting piece, the central axis of the battery module being parallel to the third circuit board, and the connecting piece being connected in series with the same electrodes of the battery module and vertically inserted into the third circuit board.

[0012] In some embodiments, the handle is further provided with a first charging component electrically connected to the third circuit board, the first charging component being disposed on the same side of the handle where the battery assembly is located and located opposite to the third circuit board.

[0013] In some embodiments, the handle includes a first side, a second side, a third side, and a fourth side connected circumferentially in sequence, the first side mating with the first circuit board, the second side mating with the battery assembly, the third side mating with the second circuit board, and the fourth side mating with the fourth circuit board.

[0014] In some embodiments, a switch component is provided on the first side, a heat dissipation part corresponding to the battery assembly is provided on the second side, a shift component is provided on the third side, and a display part corresponding to the display assembly is provided on the fourth side.

[0015] In some embodiments, a first protective shell is also included, which is sleeved on the outside of the handle, and the first protective shell has a heat dissipation groove corresponding to the heat dissipation part and a display groove corresponding to the display part.

[0016] Compared with the prior art, the small-volume shaver provided by this utility model has at least one of the following beneficial effects:

[0017] 1. The entire circuit board is divided into three sub-functional boards: a first circuit board, a second circuit board, and a third circuit board. The third circuit board is arranged parallel to the bottom end face of the handle, and the first and second circuit boards are perpendicularly inserted into the two sides of the third circuit board. This significantly reduces the area occupied by the circuit board in the handle and effectively reduces the overall height of the shaver. Moreover, the drive component is perpendicularly connected to the third circuit board and the transmission component in the shaver holder and is located between the first and second circuit boards. This makes better use of the space inside the handle, thereby achieving a significant reduction in product size and improving portability and ease of use.

[0018] 2. The battery assembly, the first circuit board, the fourth circuit board, and the second circuit board are arranged around the drive assembly in sequence around the handle, so that each component is evenly distributed inside the handle, which further optimizes the use of space inside the handle, avoids local overheating, helps to improve heat dissipation efficiency, ensures that each component operates within the normal operating temperature range, and extends the service life of the product.

[0019] 3. The symmetrical first and second circuit boards, which extend and contract to one side, not only ensure a balanced layout inside the handle but also further optimize space utilization. Attached Figure Description

[0020] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0021] Figure 1 It is a vertical cross-sectional view of a razor;

[0022] Figure 2 This is a horizontal cross-sectional view of a razor;

[0023] Figure 3 This is a diagram showing the location of the internal components of a razor.

[0024] Explanation of icon numbers:

[0025] Knife holder 1,

[0026] Handle 3, first circuit board 301, second circuit board 302, third circuit board 303, drive assembly 304, fourth circuit board 305, battery assembly 306, battery module 3061, connecting piece 3062, display assembly 307, and first charging assembly 308.

[0027] First side 31, switch component 311, second side 32, third side 33, shift component 331, fourth side 34. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0030] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0033] refer to Figures 1 to 3This utility model provides a small-volume shaver, including a blade holder 1 and a handle 3 connected vertically. The handle 3 is provided with a first circuit board 301, a second circuit board 302, a third circuit board 303, and a drive assembly 304. The third circuit board 303 is arranged parallel to the bottom end face of the handle 3. The first circuit board 301 and the second circuit board 302 are respectively vertically inserted into the two sides of the third circuit board 303 and distributed on both sides of the handle 3. The drive assembly 304 is coaxially arranged inside the handle 3 and is located between the first circuit board 301 and the second circuit board 302. The drive assembly 304 is vertically connected to the third circuit board 303 and the transmission assembly in the blade holder 1.

[0034] In this embodiment, the entire circuit board is divided into three sub-functional sub-boards: a first circuit board 301, a second circuit board 302, and a third circuit board 303. The third circuit board 303 is arranged parallel to the bottom end face of the handle 3. The first circuit board 301 and the second circuit board 302 are vertically inserted into the two sides of the third circuit board 303, which significantly reduces the area occupied by the circuit board in the handle 3 and effectively reduces the overall height of the shaver. Moreover, the drive component 304 is vertically connected to the third circuit board 303 and the transmission component in the shaver holder 1 and is located between the first circuit board 301 and the second circuit board 302. The space utilization rate inside the handle 3 is higher, thereby achieving a significant reduction in product size and improving portability and ease of use.

[0035] Specifically, the third circuit board 303 is fixed parallel to the bottom end face of the handle 3, serving as a basic support. The first circuit board 301 and the second circuit board 302 are respectively vertically inserted into both sides of the third circuit board 303 and symmetrically distributed on both sides of the handle 3, forming a stable three-dimensional circuit architecture. This fully utilizes the vertical space inside the handle 3, avoiding the space waste caused by traditional planar layouts, significantly improving the utilization rate of internal space, and providing more space for the integration of other functional modules, thus enhancing the product's functional expandability. The drive component 304 is coaxially disposed inside the handle 3 and located in the middle position between the first circuit board 301 and the second circuit board 302. This fully utilizes the space between the first circuit board 301 and the second circuit board 302, efficiently utilizing the space inside the handle 3, ensuring effective power transmission, and improving the shaver's operating efficiency. At the same time, the drive component 304 is vertically connected to the third circuit board 303 and the transmission component inside the shaver holder 1, forming a straight power transmission path. This reduces energy loss during power transmission, improves the shaver's performance and reliability, and also reduces the length of the wiring between components and the overall length of the wiring inside the handle 3.

[0036] It is worth noting that by dividing the traditional planar circuit board into a three-dimensionally distributed first circuit board 301, second circuit board 302 and third circuit board 303, this application significantly reduces the area occupied by the circuit board in the handle 3, effectively reducing the overall height of the shaver. While maintaining the functional integrity of the shaver, it achieves a significant reduction in the size of the shaver, making it more compact and meeting the needs of modern consumers for portable products. It also makes it possible to place it in the charging case later.

[0037] Furthermore, it also includes a battery assembly 306 and a fourth circuit board 305 electrically connected to the third circuit board 303. The battery assembly 306 and the fourth circuit board 305 are respectively disposed at both ends of the first circuit board 301 and the second circuit board 302 and are vertically inserted into the third circuit board 303. The battery assembly 306, the first circuit board 301, the fourth circuit board 305 and the second circuit board 302 are arranged in sequence around the drive assembly 304 in a circumferential direction around the handle 3.

[0038] In this embodiment, the battery assembly 306, the first circuit board 301, the fourth circuit board 305, and the second circuit board 302 are arranged in sequence around the drive assembly 304 around the handle 3, so that each component is evenly distributed inside the handle 3, which further optimizes the space utilization inside the handle 3, avoids local overheating, helps to improve heat dissipation efficiency, ensures that each component operates within the normal operating temperature range, and extends the service life of the product.

[0039] Specifically, the battery assembly 306, the first circuit board 301, the fourth circuit board 305, and the second circuit board 302 are arranged sequentially and alternately, making full use of the three-dimensional space inside the handle 3 and avoiding the overlap and waste between components in traditional planar layouts, thus making efficient use of the space inside the handle 3. The spacing between the battery assembly 306, the first circuit board 301, the fourth circuit board 305, and the second circuit board 302 helps dissipate heat. Even if a component generates a lot of heat during operation, it can be dissipated through the surrounding space, avoiding heat concentration in a certain area and further improving the stability and reliability of the product.

[0040] Furthermore, the first circuit board 301, the second circuit board 302, the battery assembly 306, and the fourth circuit board 305 are all vertically connected to the third circuit board 303, forming a three-dimensional frame structure. The drive assembly 304 is located in the center of this frame structure. This not only improves the product's vibration and impact resistance but also ensures the stability of each component during long-term use. The vertical connection shortens the connection path between components, reducing the length and complexity of the connecting wires. Shorter connection paths reduce resistance and inductance, improve the efficiency of electrical connections, and ensure stable power supply and signal transmission.

[0041] It is worth noting that, compared to traditional designs, this wraparound layout significantly reduces the diameter and length of the handle 3, making the shaver more compact overall. This three-dimensional spatial layout not only improves space utilization but also provides more space for the integration of other functional modules, enhancing the product's functional expandability. Preferably, the first circuit board 301 is adapted to connect the switch component 311 on one side of the handle 3, and the second circuit board 302 is adapted to connect the shifting component 331 on the other side of the handle 3. The switch component 311 and the shifting component 331 are symmetrically arranged on both sides of the handle 3; the fourth circuit board 305 is adapted to connect the display component 307 on the same side of the handle 3. This application achieves a modular design by dividing the entire circuit board into multiple sub-functional sub-boards and integrating them through vertical plug-in. This not only facilitates production and maintenance but also improves the product's scalability and flexibility. Even if one sub-board fails, the other sub-boards can still continue to work, improving the product's fault redundancy capability. In the future, it is also possible to easily upgrade or replace individual modules without redesigning the entire circuit board.

[0042] Furthermore, the first circuit board 301 and the second circuit board 302 are symmetrically arranged along the central axis of the handle 3 and extend inward toward one side of the handle 3. The battery assembly 306 is disposed at the first end of the first circuit board 301 and the second circuit board 302, and the fourth circuit board 305 is disposed at the tail end of the first circuit board 301 and the second circuit board 302.

[0043] In this embodiment, the first circuit board 301 and the second circuit board 302, which are symmetrical and extend to one side, not only ensure the balanced layout inside the handle 3, but also further optimize the use of space.

[0044] Specifically, the first circuit board 301 and the second circuit board 302 are symmetrically arranged along the central axis of the handle 3, which ensures the balance and stability of the shaver during use. When the user holds the shaver, the center of gravity is more evenly distributed, making operation more comfortable. The first circuit board 301 and the second circuit board 302 extend towards one side of the handle 3, further optimizing the use of space inside the handle 3. Through this extension, the circuit boards are more compactly arranged inside the handle 3, reducing unnecessary space waste.

[0045] The battery assembly 306 includes a battery module 3061 and a connecting piece 3062. The central axis of the battery module 3061 is parallel to the third circuit board 303. The connecting piece 3062 connects the same electrodes of the battery module 3061 in series and is vertically inserted into the third circuit board 303. By placing the battery module 3061 in parallel, the longitudinal space inside the handle 3 can be fully utilized, reducing the lateral area occupied by the battery module 3061 inside the handle 3, thereby further optimizing space utilization. The vertical insertion of the connecting piece 3062 into the third circuit board 303 not only reduces the length and complexity of the connecting wires but also improves the efficiency of the electrical connection.

[0046] It is worth noting that the outer shell of the handle 3 also extends along with the battery assembly 306, the first circuit board 301, the fourth circuit board 305, and the second circuit board 302. The handle 3 includes a first side 31, a second side 32, a third side 33, and a fourth side 34 connected circumferentially. The first side 31 matches the first circuit board 301, the second side 32 matches the battery assembly 306, the third side 33 matches the second circuit board 302, and the fourth side 34 matches the fourth circuit board 305. The first side 31 is provided with a switch component 311, the second side 32 is provided with a heat dissipation part corresponding to the battery assembly 306, the third side 33 is provided with a shift component 331, and the fourth side 34 is provided with a display part corresponding to the display component 307. The battery assembly 306 is located at the beginning of the first circuit board 301 and the second circuit board 302, which is beneficial for installing a battery assembly 306 with a larger capacity and volume. The fourth circuit board 305 is located at the end of the first circuit board 301 and the second circuit board 302, which also takes into account that the display component 307 does not need to be too wide.

[0047] Preferably, both the second side portion 32 and the fourth side portion 34 include a pair of decreasing segments and a parallel segment; the first ends of the pair of decreasing segments are respectively connected to the first side portion 31 and the third side portion 33 and are adapted to decrease and shrink toward the side away from the first side portion 31 and the second side portion 32, and the parallel segment is connected to the end of the decreasing segments.

[0048] In this embodiment, the decreasing contraction of the decreasing segment makes the shape of the handle 3 more streamlined and better adaptable to different user hand sizes and shapes, providing a more personalized grip experience. The parallel segment connects the ends of the decreasing segment, forming a relatively flat surface that provides a stable support point for the user's fingers, further enhancing grip stability.

[0049] Specifically, both the second side 32 and the fourth side 34 include a pair of decreasing segments and a parallel segment, and the parallel ends 322 of the second side 32 and the fourth side 34 are parallel to each other, making the cross-section of the handle 3 octagonal. This not only has a unique aesthetic appeal, but also provides more contact points. When the handle 3 contacts the hand, it provides a relatively large contact area, allowing the user to grip the razor more firmly and reducing the possibility of slippage.

[0050] Furthermore, the first side 31 and the third side 33 are symmetrical along the central axis of the handle 3 and gradually decrease in size towards one side. The first ends of a pair of decreasing segments are respectively connected to the first side 31 and the third side 33 and are adapted to gradually decrease in size towards the side away from the first side 31 and the second side 32. Each side of the handle 3 can serve as a support point, allowing the user to find a comfortable and stable position regardless of how they hold it. When the hand holds the handle 3, each side can correspond to the contact area of ​​different fingers, allowing the fingers to be naturally distributed on each side, making the force on the hand more even during the grip and reducing fatigue caused by excessive local pressure.

[0051] In addition, the octagonal shape can increase the structural strength of the handle 3, making it more durable and able to withstand various pressures and impacts in daily use. This allows the handle 3 to form a concave shape similar to the natural grip of the hand, similar to the design principle of a pistol grip, which allows the palm to fit the handle 3 better and increases the stability when holding it.

[0052] Furthermore, the handle 3 also includes a first charging component electrically connected to the third circuit board 303. This first charging component is located on the same side of the handle 3 where the battery component 306 is located, and is positioned below the third circuit board 303. The first charging component and the battery component 306 are located on the same side of the handle 3 and use a universal Type-C interface. A first charging terminal is located at the bottom of the handle 3. Users can simply place the shaver on the wireless charging base to charge it without needing to plug or unplug a charging cable, reducing the risk of wear and damage to the charging interface. The first charging terminal can be designed as either magnetic or contact-type. A magnetic first charging terminal automatically attaches to and connects to the charging base, while a contact-type first charging terminal uses metal contacts for charging connection.

[0053] Furthermore, it also includes a first protective shell, which is fitted onto the outside of the handle 3. The first protective shell has a heat dissipation groove corresponding to the heat dissipation section and a display groove corresponding to the display section. This heat dissipation section uses a highly efficient heat dissipation material, which can quickly conduct and dissipate the heat generated by the battery, effectively reducing the temperature of the battery assembly 306 and maintaining it within a suitable operating temperature range. The first protective shell has heat dissipation grooves at corresponding positions, the shape and size of which precisely match the heat dissipation section, ensuring that the heat dissipation section is fully and appropriately exposed. This not only ensures heat dissipation but also takes into account the overall appearance and aesthetics of the product. Through the heat dissipation grooves, external air can smoothly contact the heat dissipation section, further promoting heat dissipation, thereby forming a good heat dissipation cycle and ensuring the stability and reliability of the shaver during long-term use. The display assembly 307 forms a display section on the second side 32, allowing the display section to clearly display relevant information for easy viewing by the user during use. The first protective shell has a display groove at a corresponding position, the size and shape of which match the display section, appropriately exposing the display section. In this way, even with the first protective case covering the shaver, users can still clearly see the information displayed on the screen, thus better understanding the shaver's working status and making timely adjustments.

[0054] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A small-volume shaver, characterized in that, Includes the upper and lower connected tool holder and handle; The handle is internally provided with a first circuit board, a second circuit board, a third circuit board, and a drive assembly; the third circuit board is arranged parallel to the bottom end face of the handle, and the first circuit board and the second circuit board are respectively vertically inserted into the two sides of the third circuit board and distributed on both sides of the handle; the drive assembly is coaxially arranged inside the handle and is located between the first circuit board and the second circuit board, and the drive assembly is vertically connected to the third circuit board and the transmission assembly in the tool holder.

2. The small-volume shaver according to claim 1, characterized in that, It also includes a battery assembly and a fourth circuit board electrically connected to the third circuit board, wherein the battery assembly and the fourth circuit board are respectively disposed at both ends of the first circuit board and the second circuit board and are vertically inserted into the third circuit board; The battery assembly, the first circuit board, the fourth circuit board, and the second circuit board are sequentially arranged around the drive assembly in a circumferential manner around the handle.

3. A small-volume shaver according to claim 2, characterized in that, The first circuit board and the second circuit board are symmetrically arranged along the central axis of the handle and extend inward toward one side of the handle. The battery assembly is disposed at the first end of the first circuit board and the second circuit board, and the fourth circuit board is disposed at the tail end of the first circuit board and the second circuit board.

4. A small-volume shaver according to claim 2, characterized in that, The first circuit board is adapted to connect to a switch component on one side of the handle, the second circuit board is adapted to connect to a shift component on the other side of the handle, the switch component and the shift component are symmetrically arranged on both sides of the handle; the fourth circuit board is adapted to connect to a display component on the same side of the handle.

5. A small-volume shaver according to claim 2, characterized in that, The battery assembly includes a battery module and a connecting piece. The central axis of the battery module is parallel to the third circuit board. The connecting piece is connected in series with the same electrodes of the battery module and is vertically inserted into the third circuit board.

6. A small-volume shaver according to claim 2, characterized in that, The handle also contains a first charging component that is electrically connected to the third circuit board. The first charging component is located on the same side of the handle where the battery component is located and is positioned below the third circuit board.

7. A small-volume shaver according to claim 2, characterized in that, The handle includes a first side, a second side, a third side, and a fourth side connected in a circumferential sequence. The first side matches the first circuit board, the second side matches the battery assembly, the third side matches the second circuit board, and the fourth side matches the fourth circuit board.

8. A small-volume shaver according to claim 7, characterized in that, A switch component is provided on the first side, a heat dissipation part corresponding to the battery assembly is provided on the second side, a gear shifting component is provided on the third side, and a display part corresponding to the display assembly is provided on the fourth side.

9. A small-volume shaver according to claim 8, characterized in that, It also includes a first protective shell, which is sleeved on the outside of the handle, and has a heat dissipation groove corresponding to the heat dissipation part and a display groove corresponding to the display part.

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