Tooth socket insert, radiator and power equipment

Abstract

The utility model discloses a tooth socket insert, a radiator and power equipment. Wherein a threaded hole is formed in the center of the tooth socket insert, and a plurality of embossments with the same screwing direction as the threaded hole are arranged on the outer side wall of the tooth socket insert in the circumferential direction in an array mode; the difference value between the complementary angle of the embossing lead angle and the lead angle of the threaded hole is smaller than or equal to the friction angle of the embossing. The radiator comprises a substrate and the tooth socket insert, and the tooth socket insert can be installed in an installation groove in one side of the substrate in a cold pressing mode. The power equipment comprises the radiator. The threaded sleeve insert has the beneficial effects that through the structure and angle arrangement of the embossing, it can be guaranteed that the threaded sleeve insert does not loosen in the fastening connection process of the threaded sleeve insert and the screw, and meanwhile the threaded sleeve insert does not loosen in the dismounting process of the screw.

Description

Technical Field

[0001] The present application relates to the technical field of radiators, and in particular to a dental brace insert, a radiator and an electric power device. Background Art

[0002] When installing the radiator, a threaded connection is often used. The thread can be directly drilled or tapped. The thread strength obtained by this method depends on the radiator material itself. A wire brace can also be nested on the radiator or an integrated brace can be set.

[0003] However, in actual use, the drilling and tapping method can easily cause thread slippage during installation due to the low strength of the radiator material itself, which can lead to damage to the radiator. As for the method of installing the brace, since the brace and the radiator are made of different materials and have different expansion coefficients, they are prone to loosening when the radiator heats up; and there is also a risk of the brace falling out during installation and maintenance. Therefore, when installing the brace, it is often necessary to apply thread glue to fix the brace, which is not only inconvenient for the installation of the brace, but also prone to glue overflow. Utility Model Content

[0004] One of the purposes of the present application is to provide a braces insert that can solve at least one of the defects in the above-mentioned background technology.

[0005] Another object of the present application is to provide a heat sink that can solve at least one of the defects in the above-mentioned background technology.

[0006] Another object of the present application is to provide an electric power device that can solve at least one defect in the above-mentioned background technology.

[0007] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: a braces inlay, a threaded hole is arranged at the center of the braces inlay, and the outer wall of the braces inlay is arranged in an array along the circumferential direction with a plurality of embossings with the same rotation direction as the threaded hole; the difference between the complementary angle of the embossing rise angle and the rise angle of the threaded hole is less than or equal to the friction angle of the embossing.

[0008] Preferably, the complementary angle of the lead angle of the embossing is greater than or equal to the lead angle of the threaded hole.

[0009] Preferably, the embossing adopts a spiral structure.

[0010] Preferably, the embossing adopts a helical tooth structure.

[0011] Preferably, an annular air-avoiding groove is provided on the outer side of the brace insert.

[0012] Preferably, a plurality of the air avoidance grooves are provided, and the plurality of air avoidance grooves are spaced apart along the axial direction.

[0013] Preferably, the number of the relief grooves is two, and they are respectively close to both ends of the dental brace insert; the knurling is arranged on the shaft section between the two relief grooves.

[0014] Preferably, one side of the relief groove close to the knurling is a conical surface, and the conical angle direction of the conical surface points to the end of the dental brace insert.

[0015] A radiator includes a plurality of the above-mentioned dental brace inserts and a substrate; a plurality of installation grooves are arranged on one side of the substrate, and the dental brace inserts are fixedly installed in the respective installation grooves by cold pressing.

[0016] An electrical device includes the above-mentioned radiator.

[0017] Compared with the prior art, the beneficial effect of the present application lies in:

[0018] Through the structure and angle setting of the knurling, it can be ensured that the dental brace insert does not slip during the process of being fixedly connected with the screw, and at the same time, it will not become loose during the process of removing the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the dental brace insert in the present application.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the dental brace insert in the present application.

[0021] Figure 3 It is a schematic diagram of the structure of the dental brace insert in the front view direction in the present application.

[0022] Figure 4 It is a schematic diagram of the structure of the radiator in the present application.

[0023] Figure 5 It is a schematic diagram of the partial structure of the dental brace insert installed on the substrate in the present application.

[0024] In the figure: dental brace insert 1, threaded hole 10, knurling 11, relief groove 12, conical surface 13, substrate 2, installation groove 20, heat dissipation fin 3. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0026] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0028] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0029] One aspect of the present application provides a dental brace insert, as Figures 1 to 3 shown. A threaded hole 10 is provided at the center of the dental brace insert 1 of a preferred embodiment. A plurality of embossments 11 with the same helix direction as the threaded hole 10 are arranged in an array along the circumferential direction of the outer sidewall of the dental brace insert 1; and the difference between the complementary angle of the lead angle of the embossment 11 and the lead angle of the threaded hole 10 is less than or equal to the friction angle of the embossment 11. In this way, whether the dental brace insert 1 is tightened or loosened with a screw, the friction fit between the embossment 11 on the outer sidewall of the dental brace insert 1 and the installation position can ensure that the dental brace insert 1 is always in a stable state; that is, it ensures that the dental brace insert 1 does not slip during the process of being tightly connected with the screw, and at the same time, it will not become loose during the process of removing the screw.

[0030] It should be known that the friction angle refers to the angle between the static friction force and the normal pressure when the object is in a critical state of sliding and the static friction force reaches its maximum value; in terms of value, the tangent value of the friction angle is equal to the friction coefficient. Generally speaking, the braces insert 1 is made of metal, and the materials of the components used to install the braces insert 1 are generally also made of metal; taking the example of the braces insert 1 and the mounting component both made of steel, the friction coefficient between the two is about 0.15, which is converted to a friction angle of about 8.5°. If the mounting component is made of non-metallic material, such as plastic, the friction coefficient between the two may reach above 0.3, which is converted to a friction angle of about 18.4°; for ease of understanding, the following explanation will be made of metal as an example. The lead angle refers to the angle between the tangent of the rotation direction and the radial plane; for the lead angle of the threaded hole 10, the field generally takes 15°-20°.

[0031] For ease of understanding, the specific working process of the dental brace insert 1 can be described in detail below; for ease of description, the threaded hole 10 is as follows Figure 2 Taking the left-handed structure shown in FIG. 1 as an example, the corresponding embossing 11 also adopts a left-handed structure, that is, Figure 3 shown.

[0032] If the screw needs to be screwed and tightened with the dental insert 1. Figure 2 and Figure 3 As shown, since the threaded hole 10 adopts a left-handed structure, from the axial point of view, the screw needs to be screwed with the threaded hole 10 in the clockwise direction. As the screwing length of the screw and the threaded hole 10 increases, the friction between the screw and the threaded hole 10 gradually increases. When the screw is almost completed and tightened, the friction between the screw and the threaded hole 10 can be regarded as a whole, and the whole applies pressure to the installation component through the embossing 11.

[0033] by Figure 3 Taking the posture of the dental brace insert 1 as an example, assuming that the pressure of the embossing 11 on the mounting component at any point is F0, the reaction force of the mounting component on the embossing 11 is F and is tilted upward; it should be known that the inclination angle between the reaction force F and the radial plane of the dental brace insert 1 is equal to the lead angle α of the threaded hole 10. Since the embossing 11 is also an inclined structure, the reaction force F is decomposed to obtain a component force F1 perpendicular to the tangent direction of the embossing 11 and a component force F2 parallel to the tangent direction of the embossing.

[0034] According to the triangular relationship, the force component F1, the force component F2 and the reaction force F can form a right triangle of force, and the angle between the force component F1 and the reaction force F is β-α; then the force component F1=Fcos(β-α), the force component F2 is equal to Fsin(β-α), and β represents the complementary angle of the rise angle of the embossing 11. Among them, the force component F1 can be regarded as the positive pressure of the braces insert 1 sliding along the rotation direction, so it is only necessary to ensure that μF1≥F2 to achieve the friction self-locking of the braces insert 1, and μ represents the friction coefficient between the braces insert 1 and the installation component. Then μ≥F2 / F1=Fsin(β-α) / Fcos(β-α)=tan(β-α); that is, friction self-locking can be achieved when the friction angle corresponding to the friction coefficient μ is greater than or equal to β-α. If the screw needs to be loosened and disassembled from the braces insert 1, the above-mentioned force process is reversed, and μ≥tan(β-α) is also required to meet the demand for friction self-locking.

[0035] It should be noted that, in the above analysis process, since the gravity of the dental brace insert 1 is much smaller than the driving force when the screw is screwed and tightened, the gravity of the dental brace insert 1 itself is ignored in the above analysis. Of course, in order to further ensure the stability of the installation structure of the dental brace insert 1 when the screw is tightened or removed, β-α can be set to be smaller than the friction angle corresponding to the friction coefficient μ; for example, β-α≤0.9arctanμ.

[0036] It can be understood that, from the above analysis process, it is only necessary to ensure that β-α≤arctanμ to achieve friction self-locking. Therefore, the value of β-α can be a non-negative value, that is, β≥α; the value of β-α can also be a negative value, that is, 0<β<α. For each embossing 11, its axial projection length can be expressed as Lsinβ, where L represents the extension length of the embossing 11; therefore, the larger the value of the complementary angle β within the limited range, the longer the axial projection length of the embossing 11, and the unit extrusion pressure of the single embossing 11 in the axial direction with the mounting component will be reduced when the total axial extrusion pressure remains unchanged, thereby further improving the stability of the mounting structure of the braces insert 1 and reducing the structural wear between the braces insert 1 and the mounting component. Therefore, in this embodiment, the complementary angle of the rise angle of the embossing 11 is preferably taken as a value greater than or equal to the rise angle of the threaded hole 10.

[0037] In this embodiment, Figure 1 and Figure 3 As shown, there are various specific structures of the embossing 11 that can achieve the above functions. For example, the embossing 11 can adopt a spiral structure, and another example is that the embossing 11 can adopt a helical tooth structure.

[0038] In this embodiment, Figures 1 to 3As shown, a concave clearance groove 12 is provided on the outer side of the dental brace insert 1. When the dental brace insert 1 is installed, by squeezing the installation component, the deformed part of the installation component can extend into the clearance groove 12, thereby hindering the axial movement of the dental brace insert 1 and improving the installation stability of the dental brace insert 1.

[0039] It should be noted that the clearance groove 12 can be arranged in multiple segments in the circumferential direction or in a ring shape. In order to ensure stable force, in this embodiment, the clearance groove 12 is preferably arranged in a ring shape. The number of clearance grooves 12 is at least one, but in order to further improve the limiting ability of the clearance groove 12 on the dental brace insert 1, in this embodiment, multiple clearance grooves 12 are preferably used, and the multiple clearance grooves 12 are arranged at intervals along the axial direction of the dental brace insert 1. It should be noted that the number of clearance grooves 12 cannot be set too many, as too many clearance grooves 12 will shorten the axial length of the knurling 11, thereby affecting the self-locking ability of the knurling 11. For easy understanding, a specific example will be described in detail below.

[0040] Specifically, as Figures 1 to 3 shown, the number of clearance grooves 12 is two, and they are respectively close to both ends of the dental brace insert 1. The knurling 11 can be arranged on the shaft section between the two clearance grooves 12, so as to ensure that the axial length of the knurling 11 accounts for more than 50% of the total axial length of the dental brace insert 1. Furthermore, while ensuring the stable frictional self-locking of the knurling 11, it can also ensure that the clearance grooves 12 can stably perform axial limiting on the dental brace insert 1.

[0041] In this embodiment, as Figure 2 and Figure 3 shown, the side of the clearance groove 12 close to the knurling 11 is a conical surface 13, and the conical angle direction of the conical surface 13 points to the end of the dental brace insert 1, that is, the inclination direction of the conical surface 13 faces the center of the corresponding end. When the dental brace insert 1 is installed with the installation component, the extrusion force generated by the deformation of the installation component on the dental brace insert 1 will act on the conical surface 13. Then, according to the inclination relationship of the conical surface 13, the extrusion forces received by the conical surfaces 13 of the two clearance grooves 12 can position the dental brace insert 1 to further ensure the installation stability of the dental brace insert 1.

[0042] Another aspect of the present application provides a heat sink, as Figure 4 and Figure 5 shown. One preferred embodiment includes a substrate 2 and a plurality of the above-mentioned dental brace inserts 1. At least one installation groove 20 is provided on one side of the substrate 2, and each dental brace insert 1 can be fixedly installed in each installation groove 20 by cold pressing, so as to ensure that each installation groove 20 of the substrate 2 performs frictional self-locking and axial limiting with the knurling 11 and the clearance groove 12 of the dental brace insert 1 respectively through interference deformation.

[0043] It should be noted that the specific number and setting position of the installation grooves 20 can be selected according to actual installation needs; for example Figure 4 As shown, the number of the installation grooves 20 is ten, divided into two groups with five in each group, and the two groups of installation grooves 20 are arranged in an array on one side of the substrate 2. Thus, when the radiator is installed, the radiator can be fixed by screwing and tightening with the dental insert 1 in the installation groove 20. Heat dissipation fins 3 are evenly distributed on the other side of the substrate 2 corresponding to the installation grooves 20. The specific structure and working principle of the heat dissipation fins 3 are well-known technologies to those skilled in the art, so they will not be elaborated in detail here.

[0044] Another aspect of the present application provides a power device, and a preferred embodiment thereof includes the above-mentioned radiator. There are various common power devices, such as inverters, converters, and power distribution cabinets, etc.; the specific installation method of the radiator in the power device is a well-known technology to those skilled in the art, so it will not be elaborated in detail here.

[0045] The basic principle, main features and advantages of the present application have been described above. Those skilled in the art of this industry should understand that the present application is not limited by the above-mentioned embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A dental appliance insert, wherein a threaded hole is provided at the center of the dental appliance insert, characterized in that A plurality of embossings with the same helix direction as that of the threaded holes are arranged in an array along the circumferential direction of the outer side wall of the dental brace insert; the difference between the complementary angle of the helix angle of the embossing and the helix angle of the threaded hole is less than or equal to the friction angle of the embossing.

2. The dental appliance insert according to claim 1, wherein, The complementary angle of the helix angle of the embossing is greater than or equal to the helix angle of the threaded hole.

3. The dental appliance insert according to claim 1, wherein The embossing adopts a spiral structure.

4. The dental appliance insert according to claim 1, wherein The embossing adopts a helical tooth structure.

5. The dental appliance insert according to any one of claims 1-4, characterized in that, An annular clearance groove is arranged on the outer side of the dental brace insert.

6. The dental appliance insert according to claim 5, characterized in that, A plurality of the clearance grooves are provided, and the plurality of clearance grooves are arranged at intervals along the axial direction.

7. The dental appliance insert according to claim 6, wherein The number of the clearance grooves is two, and they are respectively close to both ends of the dental brace insert; the embossing is arranged on the shaft section between the two clearance grooves.

8. The dental appliance insert according to claim 7, wherein, One side of the clearance groove close to the embossing is a conical surface, and the conical angle direction of the conical surface points to the end of the dental brace insert.

9. A radiator, characterized in that, It includes a substrate and a plurality of dental brace inserts according to any one of claims 1-8; a plurality of installation grooves are arranged on one side of the substrate, and the dental brace inserts are correspondingly and tightly installed in the respective installation grooves by cold pressing.

10. A power device, characterized in that, It includes the radiator according to claim 9.

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