Ultrasonic dental scaler handle with optimized heat dissipation
Patent Information
- Application Number
- CN202522534788.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-28
AI Technical Summary
同时,针对现有技术散热性能不足的问题,本实用新型进行了一系列优化
[0020]1.本实用新型,优化了手柄形状,采用一端粗一端细的流线设计,具体的是主手柄外壳和手柄上盖的设计呈锥形,锥度控制在8-10度之间;该设计更贴合医护人员握笔式手持习惯;
Smart Images

Figure CN224892801U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of dental cleaning instrument technology, and more specifically to an ultrasonic dental cleaning machine handle with optimized heat dissipation performance. Background Technology
[0002] Ultrasonic scalers are a common type of oral cleaning device. They convert electrical energy into high-frequency vibrations of 25-50kHz using a transducer (magnetostrictive or piezoelectric ceramic). The high-frequency oscillation of the working head can break up tartar while avoiding direct cutting of the tooth. They are mainly used to remove tartar, plaque, and stains from the tooth surface.
[0003] Chinese Patent Application No. 202323615807.X discloses a switch structure for a dental scaler handle, including a housing, a working component, an electronic switch, and a control component. The working component is installed inside the housing and is used for dental scaler operation; the electronic switch is electrically connected to the working component; the control component is resiliently connected to the press contact of the electronic switch.
[0004] When healthcare professionals clean a patient's mouth, they typically hold the dental scaler like a pen. However, the handle switch structure of the dental scaler in the aforementioned patent is cylindrical, with both ends being the same thickness. This requires the operator to maintain the same grip posture throughout, which can easily cause wrist discomfort.
[0005] Prolonged use can easily lead to wrist fatigue, affecting the accuracy and efficiency of the teeth cleaning procedure. Furthermore, the existing technology has significant shortcomings in heat dissipation. During continuous use, the high-frequency vibration generates heat; if this heat cannot be dissipated effectively and promptly, it will not only shorten the lifespan of the scaler handle but may also cause discomfort to the patient due to overheating. Utility Model Content
[0006] The purpose of this invention is to provide an ultrasonic scaler handle with optimized heat dissipation performance. The handle's shape is optimized with a streamlined design that is thicker at one end and thinner at the other. This design better suits the pen-holding habits of medical professionals, effectively reducing wrist fatigue during prolonged operation and improving the accuracy and efficiency of the scaling procedure. Simultaneously, addressing the insufficient heat dissipation performance of existing technologies, this invention incorporates a series of optimizations. Heat dissipation holes are provided at the end of the handle's end cap, accelerating airflow within the handle and allowing heat to dissipate more quickly. The battery holder features an integrated retaining ring at the bottom and integrated retaining strips on both sides. This structure not only facilitates stable battery placement but also increases the contact area between the battery and the surrounding air, aiding in heat dissipation; thus solving the technical problems mentioned in the background section.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An ultrasonic scaler handle with optimized heat dissipation performance includes a main handle housing, a handle end cap fitted at the bottom of the main handle housing, and a handle top cover snapped onto the top of the main handle housing; a protective shell is fitted onto the outer side of the handle top cover.
[0009] The handle end cap has a battery holder fixed inside, and a heat dissipation hole is provided at the end of the handle end cap.
[0010] The battery holder has a battery compartment for easy battery placement; the bottom of the battery compartment is integrally provided with a retaining ring, and retaining strips are integrally provided on both sides of the battery compartment.
[0011] As a further technical solution of this utility model, both the protective shell and the handle cover are provided with elliptical holes for easy installation of the power switch, so that the power switch is slidably connected in the elliptical holes.
[0012] As a further technical solution of this utility model, the upper end of the handle end cap is integrally provided with two elastic buckles; after the main handle shell and the handle end cap are fastened together, the elastic buckles engage with the slots on the inner side of the main handle shell.
[0013] As a further technical solution of this utility model, a rubber sleeve is fitted on the outer side after the main handle shell and the handle end cover are fastened together.
[0014] As a further technical solution of this utility model, the inner surface of the handle cover and the main handle shell is integrally provided with multiple mounting ribs.
[0015] As a further technical solution of this utility model, the outer side of the retaining ring is provided with two symmetrical protruding retaining blocks, and two D-shaped through grooves are also provided on the retaining ring.
[0016] As a further technical solution of this utility model, the main handle shell and the handle cover are tapered, with a taper of 8-10 degrees.
[0017] As a further technical solution of this utility model, a soft part is bonded to the top of the protective shell, and the soft part made of rubber is tapered.
[0018] As a further technical solution of this utility model, the top of the main handle shell is integrally provided with a positioning post, and a positioning groove is provided on the inner side of the main handle shell to facilitate the installation of ribs on the inner side of the handle cover.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This utility model optimizes the handle shape, adopting a streamlined design that is thicker at one end and thinner at the other. Specifically, the main handle shell and the handle cover are tapered, with the taper controlled between 8 and 10 degrees. This design is more in line with the pen-holding habits of medical staff.
[0021] 2. In practical use, this design can effectively distribute wrist pressure, reduce fatigue caused by prolonged operation, and enable medical staff to operate the dental cleaning instrument more stably and accurately, thereby improving the quality and efficiency of dental cleaning operations.
[0022] 3. In this utility model, multiple mounting ribs are integrally set on the inner surface of the handle cover and the main handle shell, which enhances the structural strength and stability of the handle; and provides a more reliable installation effect when installing components such as ultrasonic transducers and circuit boards; and the design of multiple mounting ribs creates multiple airflow cavities around the handle cover and the main handle shell, which increases the airflow effect and avoids heat from directly acting on the handle cover and the main handle shell. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model in use.
[0024] Figure 2 This utility model Figure 1 The main view.
[0025] Figure 3 This utility model Figure 2 AA sectional view.
[0026] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.
[0027] Figure 5 This utility model Figure 4 Another perspective illustration.
[0028] Figure 6 This is a schematic diagram of the battery holder structure in this utility model.
[0029] Figure 7 This is a schematic diagram of the protective outer shell structure in this utility model.
[0030] Figure 8 This utility model Figure 4 A magnified view of a portion of the image.
[0031] In the diagram: 1-Main handle housing, 2-Battery holder, 3-Handle end cap, 4-Handle top cover, 5-Protective housing, 6-Power switch, 7-Snap ring, 8-Battery compartment, 9-Snap bar, 10-Rubber sleeve, 11-Elastic buckle, 12-Mounting rib, 13-Soft part, 14-Positioning post, 15-Positioning groove. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figure 1-8 In this embodiment of the present invention, an ultrasonic scaler handle with significantly optimized heat dissipation performance includes a main handle housing 1. A handle end cap 3 is fitted to the bottom of the main handle housing 1, and a handle top cap 4 is snap-fitted onto the top of the main handle housing 1. A protective housing 5 is connected to the outside of the handle top cap 4 via a sleeve connection. A battery holder 2 is fixed inside the handle end cap 3, and a heat dissipation hole is specially provided at the end of the handle end cap 3 for heat dissipation. The battery holder 2 is designed with a battery compartment 8 for easy battery placement. The bottom of the battery compartment 8 is provided with an integral retaining ring 7, and the sides of the battery compartment 8 are also provided with integral retaining strips 9.
[0034] More specifically, the inner surfaces of the handle top cover 4 and the main handle housing 1 are integrally designed with multiple mounting ribs 12. The outer side of the retaining ring 7 has two symmetrically arranged protruding retaining blocks, and two D-shaped through slots are also specially formed on the retaining ring 7. The main handle housing 1 and the handle top cover 4 are tapered, with the taper controlled between 8 and 10 degrees. A flexible part 13, made of rubber and also tapered, is bonded to the top of the protective housing 5.
[0035] This utility model optimizes the handle shape, adopting a streamlined design that is thicker at one end and thinner at the other. Specifically, the main handle shell 1 and the handle cover 4 are designed in a conical shape, with the taper controlled between 8 and 10 degrees. This design is more in line with the pen-holding habits of medical staff.
[0036] In practical use, this design can effectively distribute wrist pressure, reduce fatigue caused by prolonged operation, and enable medical staff to operate the dental cleaning device more stably and accurately, thereby improving the quality and efficiency of dental cleaning operations.
[0037] Meanwhile, the heat dissipation holes at the end of the handle end cap 3 can accelerate the air circulation inside the main handle shell 1, allowing heat to dissipate quickly, avoiding heat accumulation that could affect the performance and lifespan of the handle, and also preventing discomfort to patients due to excessively high handle temperature.
[0038] The battery holder 2 has an integrated retaining ring 7 at the bottom of the battery compartment 8 and integrated retaining strips 9 on both sides. This structure not only makes it easy to securely place the battery, but also increases the contact area between the battery and the surrounding air, assists in heat dissipation, and further improves the heat dissipation performance of the handle.
[0039] Furthermore, multiple mounting ribs 12 integrally formed on the inner surface of the handle top cover 4 and the main handle housing 1 enhance the structural strength and stability of the handle; and provide a more reliable installation effect when installing components such as ultrasonic transducers and circuit boards. This ensures that the ultrasonic generating components can be stably installed inside the handle top cover 4 and the main handle housing 1, and the design of multiple mounting ribs 12 creates multiple airflow cavities around the handle top cover 4 and the main handle housing 1, increasing airflow and preventing heat from directly acting on the handle top cover 4 and the main handle housing 1.
[0040] In this embodiment, the outer side of the retaining ring 7 is provided with two symmetrical protruding retaining blocks, and two D-shaped through grooves are also provided on the retaining ring 7.
[0041] By adopting the above technical solution, the two protruding locking blocks on the outside of the retaining ring 7 ensure that the retaining ring 7 is firmly locked in the handle end cover 3. The structure is simple and the fastening is convenient. The D-shaped through groove ensures air circulation and improves heat dissipation.
[0042] In this embodiment, both the protective shell 5 and the handle top cover 4 are provided with oval holes for easy installation of the power switch 6, allowing the power switch 6 to be installed in the oval holes via a sliding connection. The upper end of the handle end cover 3 is provided with two elastic buckles 11 in an integrated design; when the main handle shell 1 and the handle end cover 3 are fastened together, the elastic buckles 11 can tightly engage with the slots on the inner side of the main handle shell 1. A rubber sleeve 10 is fitted onto the outer side where the main handle shell 1 and the handle end cover 3 are fastened together.
[0043] By adopting the above technical solution, the protective shell 5 is sleeved on the outside of the handle cover 4, and both the protective shell 5 and the handle cover 4 are aligned and have oval holes for installing the switch 6. This makes the protective shell 5, the handle cover 4 and the switch 6 associated, improving the stability of the connection between the protective shell 5 and the handle cover 4 and preventing them from falling off.
[0044] It should be noted that the top of the protective shell 5 is bonded with a soft part 13, which is made of rubber and is cone-shaped; the protective shell 5 is made of plastic and is used to protect the handle cover 4; the soft part 13 is made of rubber and is soft in texture. When medical staff clean the patient's mouth, the soft part 13 will not cause a large collision or discomfort when it comes into contact with the patient's gums or teeth unintentionally, thus improving the patient's comfort.
[0045] The top of the main handle housing 1 features a positioning post 14 integrated into the design, and a positioning groove 15 is provided on the inner side of the main handle housing 1 to facilitate the engagement of the rib 12 with the inner side of the handle cover 4. This design not only ensures the stability and durability of the handle but also improves its heat dissipation performance, allowing the ultrasonic scaler to maintain optimal working condition during use.
[0046] Through the precise cooperation of the positioning pins 14 and positioning slots 15, the handle cover 4 and the main handle shell 1 can be assembled quickly and accurately, effectively improving production efficiency and reducing the error rate during assembly. Simultaneously, this design further enhances the tightness of the connection between the various components of the handle, reducing additional heat generated due to loose components and indirectly improving the overall heat dissipation performance of the handle. During prolonged, high-intensity dental cleaning operations, this stable and efficient heat dissipation performance ensures that the handle remains within a suitable operating temperature range, providing healthcare professionals with a more reliable and comfortable operating experience, and offering stronger protection for patients' oral health.
[0047] Additionally, it should be noted that the appendix Figure 1-3 This is a schematic diagram of the normal assembly state of the handle, indicating that the handle can fit and be installed well with the internal ultrasonic components and circuit board; since this application is for the design of the handle shell of an ultrasonic dental scaler, its internal structure is not part of the structure in this application, nor is it an improvement made by this application, so its principle and specific installation method will not be described in detail.
[0048] The working principle of this utility model is as follows: it adopts a streamlined design with one end thick and the other end thin. Specifically, the design of the main handle shell 1 and the handle cover 4 is conical, with the taper controlled between 8 and 10 degrees. This design is more in line with the pen-holding habits of medical staff.
[0049] In practical use, this design can effectively distribute wrist pressure, reduce fatigue caused by prolonged operation, and enable medical staff to operate the dental cleaning device more stably and accurately, thereby improving the quality and efficiency of dental cleaning operations.
[0050] Meanwhile, the heat dissipation holes at the end of the handle end cap 3 can accelerate the air circulation inside the main handle shell 1, allowing heat to dissipate quickly, avoiding heat accumulation that could affect the performance and lifespan of the handle, and also preventing discomfort to patients due to excessively high handle temperature.
[0051] The battery holder 2 has an integrated retaining ring 7 at the bottom of the battery compartment 8 and integrated retaining strips 9 on both sides. This structure not only makes it easy to securely place the battery, but also increases the contact area between the battery and the surrounding air, assists in heat dissipation, and further improves the heat dissipation performance of the handle.
[0052] Furthermore, multiple mounting ribs 12 integrally formed on the inner surface of the handle top cover 4 and the main handle housing 1 enhance the structural strength and stability of the handle; and provide a more reliable installation effect when installing components such as ultrasonic transducers and circuit boards. This ensures that the ultrasonic generating components can be stably installed inside the handle top cover 4 and the main handle housing 1, and the design of multiple mounting ribs 12 creates multiple airflow cavities around the handle top cover 4 and the main handle housing 1, increasing airflow and preventing heat from directly acting on the handle top cover 4 and the main handle housing 1.
[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An ultrasonic scaler handpiece with optimized heat dissipation performance, characterized in that: Includes a main handle housing (1), with a handle end cap (3) fitted at the bottom of the main handle housing (1) and a handle top cover (4) snapped onto the top of the main handle housing (1); a protective housing (5) is fitted onto the outside of the handle top cover (4). The handle end cap (3) has a battery holder (2) fixed inside, and a heat dissipation hole is provided at the end of the handle end cap (3); The battery holder (2) has a battery compartment (8) for easy battery placement; the bottom of the battery compartment (8) is integrally provided with a retaining ring (7), and retaining strips (9) are integrally provided on both sides of the battery compartment (8).
2. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: Both the protective shell (5) and the handle cover (4) are provided with elliptical holes for easy installation of the switch (6), and the switch (6) is slidably connected in the elliptical hole.
3. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The upper end of the handle end cap (3) is provided with two elastic buckles (11); after the main handle shell (1) and the handle end cap (3) are fastened together, the elastic buckles (11) engage with the slots on the inner side of the main handle shell (1).
4. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: After the main handle housing (1) and the handle end cap (3) are fastened together, a rubber sleeve (10) is fitted on the outside.
5. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The inner surface of the handle cover (4) and the main handle shell (1) is integrally provided with multiple mounting ribs (12).
6. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The retaining ring (7) has two symmetrical protruding retaining blocks on its outer side, and two D-shaped through grooves are also provided on the retaining ring (7).
7. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The main handle housing (1) and the handle cover (4) are tapered, with a taper of 8-10 degrees.
8. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The top of the protective shell (5) is bonded with a soft part (13), which is made of rubber and is cone-shaped.
9. The ultrasonic scaler handpiece with optimized heat dissipation performance according to claim 1, characterized in that: The top of the main handle housing (1) is integrally provided with a positioning post (14), and a positioning groove (15) is provided on the inner side of the main handle housing (1) to facilitate the installation of the rib (12) on the inner side of the handle cover (4).
Citation Information
Patent Citations
Handle switch structure of tooth cleaner
CN221636145U