Heat dissipation optimization structure of electric riveting tool

Abstract

The utility model discloses a heat dissipation optimization structure of an electric riveting tool, relates to the related technical field of riveting, and is used for solving the problem that an existing electric riveting tool is poor in heat dissipation. The heat dissipation optimization structure of the electric riveting tool comprises a shell, the shell comprises a riveting part, a handle part and a base part, the handle part is connected between the riveting part and the base part, a first mounting cavity is formed in the riveting part, and a driving motor, a riveting assembly in transmission connection with the driving motor and a first heat dissipation fan are arranged in the first mounting cavity; an air inlet hole and an air outlet hole which are communicated with the inside and the outside of the first mounting cavity are formed in the position, corresponding to the riveting part, of the shell, a first air channel is formed between the air inlet hole and the air outlet hole, and the driving motor, the riveting assembly and the first cooling fan are all arranged in the first air channel. The heat dissipation effect of the riveting tool is improved, and then the service life of the riveting tool is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field related to riveting, and in particular to a heat dissipation optimization structure of an electric riveting tool. Background Art

[0002] Riveting tools are specialized tools for installing rivets. They can generally be divided into manual, pneumatic, and electric riveting tools. Manual riveting tools are only suitable for small amounts of pull riveting, but they are laborious to use and can easily cause fatigue during frequent and continuous riveting. Pneumatic riveting tools offer the advantages of speed and high pulling force, making them suitable for large-scale factory use. However, they must be operated with an air supply, are noisy, and cannot be used outdoors where air access is inconvenient. Electric riveting tools can be used outdoors where air access is unavailable and are easy to carry, making them more widely applicable.

[0003] Existing electric riveting tools dissipate heat directly through the drive motor's built-in fan. While this cooling structure works well for tools with long motor runs, it has significant drawbacks for tools with short intermittent runs and fails to effectively address the heat dissipation problem. Utility Model Content

[0004] The present application provides a heat dissipation optimization structure for an electric riveting tool, which can solve the problem of poor heat dissipation of existing electric riveting tools.

[0005] To achieve the above-mentioned purpose, the heat dissipation optimization structure of the electric riveting tool provided in the present application includes a shell, the shell includes a riveting part, a handle part and a base part, the handle part is connected between the riveting part and the base part, a first installation cavity is formed in the riveting part, a driving motor, a riveting assembly connected to the driving motor and a first cooling fan are provided in the first installation cavity, the position of the shell corresponding to the riveting part is provided with an air inlet hole and an exhaust hole connecting the inside and outside of the first installation cavity, a first air duct is formed between the air inlet hole and the exhaust hole, and the driving motor, the riveting assembly and the first cooling fan are all provided in the first air duct.

[0006] In some embodiments of the present application, a second installation cavity is formed in the base portion, a power supply assembly and a second cooling fan are provided in the second installation cavity, and an air inlet and an air outlet connecting the inside and outside of the second installation cavity are provided at a position of the shell corresponding to the base portion, a second air duct is formed between the air inlet and the air outlet, and the power supply assembly and the second cooling fan are both provided in the second air duct.

[0007] In some embodiments of the present application, the heat dissipation optimization structure of the electric riveting tool also includes a head and a tail, the riveting part includes two first side walls arranged opposite to each other in a first direction, and two second side walls arranged opposite to each other in a second direction, one of the two first side walls is provided with the head, and the other is provided with the tail, each of the second side walls is provided with the air inlet hole at the position corresponding to the riveting assembly, and the first direction and the second direction are perpendicular.

[0008] In some embodiments of the present application, the exhaust hole and the tail portion are arranged on the same first side wall, the exhaust hole is located below the tail portion, the handle portion extends along a third direction, the exhaust direction of the exhaust hole is inclined relative to the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0009] In some embodiments of the present application, the riveting assembly includes a reducer, a gear mechanism, a nut and a screw, all of which are arranged in the first mounting cavity. The screw is arranged near the top of the first mounting cavity and passes through the nut. The first cooling fan, the drive motor and the reducer are all arranged at the bottom of the screw, and the drive motor is arranged between the first cooling fan and the reducer and is transmission-connected to the reducer. The gear mechanism is transmission-connected to the nut and the reducer.

[0010] In some embodiments of the present application, the rotation axis of the screw is parallel to the rotation axis of the output shaft of the drive motor and is arranged on an eccentric axis. The air inlet hole includes a first hole group and a second hole group. Each second side wall is provided with the first hole group and the second hole group. The first hole group is arranged opposite to the connection position between the nut and the screw, the second hole group is arranged opposite to the reduction gearbox, and the second hole group is arranged close to the exhaust hole relative to the first hole group.

[0011] In some embodiments of the present application, a circuit board is provided in the handle portion, a baffle is provided at the bottom of the first mounting cavity, a wire hole is provided on the baffle, and the circuit board is provided below the baffle. The drive motor, the first cooling fan, the power supply assembly and the second cooling fan are all electrically connected to the circuit board through their respective wires, and the wires corresponding to the drive motor and the first cooling fan are electrically connected to the circuit board after passing through the wire holes.

[0012] In some embodiments of the present application, the riveting assembly includes a reducer, a gear mechanism, a nut and a screw, all of which are arranged in the first mounting cavity. At least two vertical support plates are arranged at intervals on the upper surface of the baffle, and the vertical support plates are capable of supporting the reducer in the first mounting cavity. There are multiple air inlet holes, and the projection of at least one air inlet hole is located between two adjacent vertical support plates.

[0013] In some embodiments of the present application, there are multiple air inlets, and all of them are long and strip-shaped. Each of the air inlets has a first section, a second section, and a third section arranged in sequence along its length direction, wherein the power supply component only covers the second section, the first section is located above the power supply component, and the third section is located below the power supply component.

[0014] In some embodiments of the present application, the flow area of ​​the air inlet is S1, the flow area of ​​the air outlet is S2, and the following conditions are satisfied: S1 = (0.6-0.8) × S2;

[0015] and / or,

[0016] The flow area of ​​the air inlet is S3, the flow area of ​​the air outlet is S4, and they satisfy: S3 = (0.6-0.8) x S4.

[0017] In some embodiments of the present application, a dustproof structure is provided on at least one of the air inlet, the exhaust hole, the air inlet and the air outlet.

[0018] The above technical solution of the present application has at least the following beneficial effects: the present application arranges a first cooling fan in the first installation cavity, so that air enters the first installation cavity through the air inlet hole and is discharged to the outside of the first installation cavity through the exhaust hole, thereby taking away the heat in the first installation cavity during the flow of the airflow, which is beneficial to reducing the temperature in the first installation cavity, thereby helping to avoid the drive motor and riveting assembly installed in the first installation cavity from working in a high-temperature environment, and further helping to increase the service life of the drive motor and the riveting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a front view of the heat dissipation optimization structure of the electric riveting tool in an embodiment of the present application;

[0021] Figure 2 Schematic diagram of the internal structure of the heat dissipation optimization structure of the electric riveting tool in an embodiment of the present application;

[0022] Figure 3 1 is a schematic structural diagram of a housing in a heat dissipation optimization structure of an electric riveting tool in an embodiment of the present application;

[0023] Figure 4 yes Figure 2 Enlarged view of part A in .

[0024] The main reference numerals in the drawings of this application specification are described as follows:

[0025] 1-housing; 11-riveted portion; 111-air inlet; 1111-first hole group; 1112-second hole group; 112-exhaust hole; 113-first side wall; 114-second side wall; 115-baffle; 1151-threading hole; 116-vertical support plate; 12-handle; 13-base; 131-air inlet; 1311-first section; 1312-second section; 1313-third section; 132-air outlet; 14-handle portion;

[0026] 2-drive motor; 21-motor body; 22-auxiliary fan;

[0027] 3-riveting assembly; 31-reduction gearbox; 32-gear mechanism; 33-screw;

[0028] 4-First cooling fan;

[0029] 5-Power supply assembly;

[0030] 6- Second cooling fan;

[0031] 7-head;

[0032] 8-tail;

[0033] 9-circuit board;

[0034] X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0036] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] This application provides a heat dissipation optimization structure for an electric riveting tool, and each component thereof is described in detail below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the description of each embodiment has its own focus. For details not provided in one embodiment, please refer to the relevant descriptions of other embodiments.

[0040] Reference Figure 1 and Figure 2 The heat dissipation optimization structure of the electric riveting tool provided in the present application includes a housing 1, which includes a riveting portion 11, a handle portion 12 and a base portion 13. The handle portion 12 is connected between the riveting portion 11 and the base portion 13. A first mounting cavity is formed in the riveting portion 11, and a driving motor 2, a riveting assembly 3 connected to the driving motor 2, and a first cooling fan 4 are arranged in the first mounting cavity. An air inlet 111 and an exhaust hole 112 that communicate with the inside and outside of the first mounting cavity are provided at a position corresponding to the riveting portion 11 of the housing 1. A first air duct is formed between the air inlet 111 and the exhaust hole 112. The driving motor 2, the riveting assembly 3 and the first cooling fan 4 are all arranged in the first air duct. In other words, the driving motor 2, the riveting assembly 3 and the first cooling fan 4 are all arranged between the air inlet 111 and the exhaust hole 112.

[0041] The sources of high temperature in the above-mentioned first mounting cavity mainly include: first, the operating environment temperature of the riveting tool is high, which causes the temperature of the first mounting cavity and the second mounting cavity to rise. Second, when the riveting tool is working, the drive motor 2 and the riveting assembly 3 will spontaneously dissipate heat, causing the temperature of the first mounting cavity to rise. Therefore, no matter which of the above-mentioned situations is based on, the service life of the drive motor 2 and the riveting assembly 3 will be adversely affected. To this end, the present application provides a first cooling fan 4 in the first mounting cavity, so that air enters the first mounting cavity through the air inlet 111 and is guided out of the first mounting cavity through the exhaust hole 112, thereby taking away the heat in the first mounting cavity during the flow of airflow, which is beneficial to reducing the temperature in the first mounting cavity, thereby helping to avoid the drive motor 2 and the riveting assembly 3 installed in the first mounting cavity from working in a high temperature environment, and thus helping to improve the service life of the drive motor 2 and the riveting assembly 3.

[0042] Based on the above embodiment, a second mounting cavity is formed in the base portion 13, and a power supply assembly 5 and a second cooling fan 6 are provided in the second mounting cavity. An air inlet 131 and an air outlet 132 that communicate with the inside and outside of the second mounting cavity are provided at a position of the housing 1 corresponding to the base portion 13, and the second cooling fan 6 is provided between the air inlet 131 and the air outlet 132. Similarly, a second cooling fan 6 is provided in the second mounting cavity, so that air enters the second mounting cavity through the air inlet 131 and is directed out of the second mounting cavity through the air outlet 132. Thus, the heat in the second mounting cavity is removed during the flow of air, which is beneficial to reducing the temperature in the second mounting cavity, thereby preventing the power supply assembly 5 installed in the second mounting cavity from operating in a high-temperature environment, and further beneficial to increasing the service life of the power supply assembly 5.

[0043] In addition, since the heat generated by the power supply assembly 5 is less than that generated by the drive motor 2 and the riveting assembly 3, the first cooling fan 4 is the primary cooling component within the housing 1, and the second cooling fan 6 is the secondary cooling component within the housing 1. The power of the first cooling fan 4 is greater than that of the second cooling fan 6. In other words, the fan force of the first cooling fan 4 is greater than that of the second cooling fan 6.

[0044] In addition, if Figure 3As shown, the first air duct is formed between the air inlet 111 and the exhaust hole 112, and the second air duct is formed between the air inlet 131 and the air outlet 132. In other words, the shell 1 of the present application is provided with two air ducts, namely the first air duct and the second air duct, the two ports of the first air duct are the air inlet 111 and the exhaust hole 112, respectively, and the two ports of the second air duct are the air inlet 131 and the air outlet 132, respectively. Among them, when there is only one air duct, the temperature of the air flow has risen to a certain extent and turned into high-temperature gas when it flows through the rear section of the air duct, and the effect of the high-temperature gas on the cooling or heat dissipation effect of the components arranged near the rear section of the air duct is limited. Therefore, compared with the technical solution of designing one air duct, the shell 1 itself is designed with two air ducts, which can ensure that the path length of each air duct is relatively short, which is beneficial to improving the heat dissipation effect of the shell 1. Among them, it should be noted that, Figure 3 The direction indicated by the solid arrow is the flow direction of the airflow in the corresponding airway.

[0045] In order to further improve the heat dissipation effect of the riveting tool and the cooling effect on the various components installed therein, the drive motor 2 and the riveting assembly 3 in the present application are both arranged in the first air channel, that is, the airflow in the first air channel will flow through the drive motor 2 and the riveting assembly 3, and will come into contact with the drive motor 2 and the riveting assembly 3 to remove the heat generated by the drive motor 2 and the riveting assembly 3. Similarly, in other embodiments, the power supply assembly 5 is arranged in the second air channel, that is, the airflow in the second air channel will flow through the power supply assembly 5, and will directly come into contact with the power supply assembly 5 to remove the heat generated by the power supply assembly 5.

[0046] Of course, in some embodiments, the driving motor 2 and the riveting assembly 3 are both arranged in the first air duct, and the power supply assembly 5 is arranged in the second air duct.

[0047] For example, Figure 2 As shown, the drive motor 2 includes a motor body 21 and an auxiliary fan 22 provided on the motor body 21 , which dissipates heat from the motor body 21 through airflow, thereby reducing the temperature of the motor body 21 and improving the working reliability of the drive motor 2 .

[0048] Please continue to refer to Figure 1The heat dissipation optimization structure of the above-mentioned electric riveting tool also includes a head 7 and a tail 8. The riveting part 11 includes two first side walls 113 opposite to each other in the first direction X, and two second side walls 114 opposite to each other in the second direction Y. One of the two first side walls 113 is provided with a head 7, and the other is provided with a tail 8. Each second side wall 114 is provided with an air inlet 131 at the position corresponding to the riveting component 3. The first direction X and the second direction Y are perpendicular, so that the low-temperature airflow outside the shell 1 passes through the two second side walls 114 at the same time and enters the first installation cavity, and blows directly on the riveting component 3. The low-temperature airflow will first flow through the riveting component 3 to ensure a good heat dissipation effect on the riveting component 3.

[0049] For example, the head 7 and tail 8 of the heat dissipation optimization structure of the electric riveting tool extend out of the corresponding first side wall 113. For example, the head 7 extends out of the first side wall 113 on the right side of the housing 1, and the tail 8 extends out of the first side wall 113 on the left side of the housing 1.

[0050] During use, the user will hold the handle 12 with one hand and support the housing 1 below the head 7 with the other hand to operate the electric riveting tool. This is to prevent the hot air flow in the first mounting cavity from blowing onto the user's hand, thereby reducing the user's experience and even causing burns to the user's hand. The exhaust hole 112 and the tail portion 8 in this application are provided on the same first side wall 113. The exhaust hole 112 is located below the tail portion 8. The handle 12 extends along the third direction Z. The exhaust direction of the exhaust hole 112 is tilted relative to the third direction Z to prevent the hot air flow derived from the first mounting cavity from blowing directly onto the user's hand. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0051] The head portion 7 is a portion of the riveting tool used for pulling rivets, the tail portion 8 is a portion of the riveting tool used for removing rivets, and the handle portion 12 is a portion for a user to grasp the riveting tool.

[0052] Please continue to refer to Figure 2 The riveting assembly 3 includes a reduction gear box 31, a gear mechanism 32, a nut and a lead screw 33, all of which are arranged in the first installation cavity. The lead screw 33 is arranged near the top of the first installation cavity and passes through the nut. The first cooling fan 4, the drive motor 2 and the reduction gear box 31 are all arranged at the bottom of the lead screw 33, and the drive motor 2 is arranged between the first cooling fan 4 and the reduction gear box 31, and is connected to the reduction gear box 31 through transmission. The gear mechanism 32 is connected to the nut and the reduction gear box 31 through transmission. This arrangement can shorten the size of the riveting assembly 3 in the first direction X, making it easier for the user to hold the electric riveting tool with both hands to operate it.

[0053] Based on the above embodiment, in order to ensure good heat dissipation effect on the screw structure and the reduction box 31, as shown in FIG. Figure 1 and Figure 2As shown, the rotation axis of the lead screw 33 is parallel to the rotation axis of the output shaft of the drive motor 2 and is arranged off-axis. The air inlet 111 includes a first hole group 1111 and a second hole group 1112. Each second side wall 114 is provided with a first hole group 1111 and a second hole group 1112. The first hole group 1111 is arranged directly opposite the connection position between the nut and the lead screw 33, and the second hole group 1112 is arranged directly opposite the reduction gear box 31. The second hole group 1112 is arranged near the exhaust hole 112 relative to the first hole group 1111. As a result, a portion of the low-temperature airflow outside the housing 1 passes through the first hole group 1111 and blows directly to the connection position between the nut and the lead screw 33, and another portion of the low-temperature airflow outside the housing 1 passes through the second hole group 1112 and blows directly to the reduction gear box 31, so as to avoid the airflow flowing through the connection position between the nut and the lead screw 33 and then flowing through the reduction gear box 31, which has a poor cooling effect on the reduction gear box 31.

[0054] In order to guide or direct the airflow in the first installation cavity, a circuit board 9 is provided in the handle part 12, and a baffle 115 is provided at the bottom of the first installation cavity. A wire hole 1151 is provided on the baffle 115, and the circuit board 9 is arranged below the baffle 115. The drive motor 2, the first cooling fan 4, the power supply assembly 5 and the second cooling fan 6 are all electrically connected to the circuit board 9 through their respective wires, and the wires corresponding to the drive motor 2 and the first cooling fan 4 are electrically connected to the circuit board 9 after passing through the wire hole 1151.

[0055] Reference Figure 2 and Figure 3 The first hole group 1111 and the second hole group 1112 are both located above the baffle 115. At least two vertical support plates 116 are provided on the upper surface of the baffle 115. The vertical support plates 116 can support the reduction gearbox 31 in the first installation cavity to reduce the contact area between the reduction gearbox 31 and the housing 1. At the same time, they can also increase the spacing between the reduction gearbox 31 and the first installation cavity to facilitate airflow within the spacing. The second hole group 1112 includes a plurality of waist-shaped holes, and the projection of at least one waist-shaped hole is located between two adjacent vertical support plates 116.

[0056] For example, first hole group 1111 includes a plurality of transverse waist-shaped holes, and second hole group 1112 includes a pair of vertical waist-shaped holes. For example, there are four transverse waist-shaped holes and four vertical waist-shaped holes. The spacing between each adjacent transverse waist-shaped hole is equal, and the spacing between each adjacent vertical waist-shaped hole is equal. This ensures relatively uniform airflow into the first mounting cavity, thereby achieving relatively uniform cooling of all locations of components directly exposed to the airflow, thereby preventing local overheating of the components.

[0057] Reference Figure 2 and Figure 4There are multiple air inlets 131, all in the shape of elongated strips. Each air inlet 131 has a first section 1311, a second section 1312, and a third section 1313 arranged in sequence along its length. The power supply assembly 5 only covers the second section 1312. The first section 1311 is located above the power supply assembly 5, and the third section 1313 is located below the power supply assembly 5. As a result, airflow entering the second mounting cavity through the first section 1311 can flow over the upper surface of the power supply assembly 5, while airflow entering the second mounting cavity through the third section 1313 can flow over the lower surface of the power supply assembly 5, thereby improving heat dissipation for the power supply assembly 5.

[0058] Specifically, the base portion 13 includes two third side walls opposite to each other in the first direction X, and two fourth side walls opposite to each other in the second direction Y, each fourth side wall is provided with a plurality of evenly arranged air inlets 131, one of the two third side walls and the first side wall provided with the tail portion 8 are located on the same side, the other third side wall of the two third side walls and the first side wall provided with the head 7 are located on the same side, and the third side wall on the same side as the head 7 is provided with an air outlet 132.

[0059] In other words, the exhaust hole 112 and the air outlet 132 are located on opposite sides of the housing 1 in the first direction. For example, the exhaust hole 112 is located on the left side of the housing 1, and the air outlet 132 is located on the right side of the housing 1. Furthermore, the housing 1 further includes a grip portion 14, which is connected between the riveted portion 11 and the base portion 13 and is located on the side of the handle portion 12 in the first direction X that is closer to the head 7.

[0060] In some embodiments, the flow area of ​​the air inlet 111 is S1, the flow area of ​​the air outlet 112 is S2, and they satisfy: S1 = (0.6-0.8) × S2, and / or, the flow area of ​​the air inlet 131 is S3, the flow area of ​​the air outlet 132 is S4, and they satisfy: S3 = (0.6-0.8) × S4. Specifically, in some embodiments, the flow area of ​​the air inlet 111 is S1, the flow area of ​​the air outlet 112 is S2, and they satisfy: S1 = (0.6-0.8) × S2. In other embodiments, the flow area of ​​the air inlet 131 is S3, the flow area of ​​the air outlet 132 is S4, and they satisfy: S3 = (0.6-0.8) × S4. In some other embodiments, the flow area of ​​the air inlet 111 is S1, the flow area of ​​the exhaust hole 112 is S2, and they satisfy: S1 = (0.6 ~ 0.8) × S2. At the same time, the flow area of ​​the air inlet 131 is S3, the flow area of ​​the air outlet 132 is S4, and they satisfy: S3 = (0.6 ~ 0.8) × S4.

[0061] It is understood that the flow area of ​​the aforementioned air inlet holes 111 is S1. If there are multiple air inlet holes 111, the flow area S1 of the air inlet holes 111 refers to the sum of the flow areas of all air inlet holes 111. For embodiments in which the air inlet holes 111 include a first hole group 1111 and a second hole group 1112, the flow area S1 of the air inlet holes 111 refers to the sum of the flow areas of all holes in the first hole group 1111 and the flow areas of all holes in the second hole group 1112. The flow area S2 of the exhaust holes 112 refers to the sum of the flow areas of all exhaust holes 112.

[0062] At the same time, there are multiple air inlets 131 and air outlets 132. The flow area S3 of the air inlet 131 refers to the sum of the flow areas of all the air inlets 131, and the flow area S4 of the air outlet 132 refers to the sum of the flow areas of all the air outlets 132.

[0063] As a result, the flow area on the inlet side of the first air duct and the second air duct is relatively small, thereby ensuring that the wind speed and wind pressure at the inlet end of the first air duct and the second air duct are relatively large. At the same time, the flow area on the outlet side of the first air duct and the second air duct is relatively large, which is convenient for reducing the resistance when the gas flows out, and is conducive to the output of the hot air flow, thereby improving the heat dissipation effect of the riveting tool. Among them, for the embodiment in which the air inlet hole 111 includes the first hole group 1111 and the second hole group 1112, it is equivalent to having two inlet sides on the first air duct. Among them, one air inlet side is the end of the first air duct, and the second inlet side is equivalent to being opened on the side wall of the first air duct.

[0064] In order to prevent foreign matter from entering the housing 1, dustproof structures are provided on the air inlet 111, the air outlet 112, the air inlet 131 and the air outlet 132. For example, the dustproof structures are filters or shutters.

[0065] In some embodiments, when the drive motor 2 stops running for more than a preset time (for example, 5 seconds), the power supply assembly 5 is controlled to stop supplying power, so that the electric riveting tool enters a sleep mode, thereby preventing the battery pack in the power supply assembly 5 from over-discharging, thereby preventing the electrode active material in the battery pack from being damaged and losing its reaction ability, thereby shortening the service life of the battery pack.

[0066] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0067] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. The content of this specification should not be understood as limiting the present application.

Claims

1. A heat dissipation optimization structure for an electric riveting tool, characterized in that: The invention comprises a shell (1), wherein the shell (1) comprises a riveted portion (11), a handle portion (12) and a base portion (13), wherein the handle portion (12) is connected between the riveted portion (11) and the base portion (13), wherein a first installation cavity is formed in the riveted portion (11), wherein a driving motor (2), a riveted assembly (3) connected to the driving motor (2) and a first cooling fan (4) are provided in the first installation cavity, wherein an air inlet (111) and an air outlet (112) communicating with the inside and outside of the first installation cavity are provided at a position of the shell (1) corresponding to the riveted portion (11), wherein a first air duct is formed between the air inlet (111) and the air outlet (112), and wherein the driving motor (2), the riveted assembly (3) and the first cooling fan (4) are all provided in the first air duct.

2. The heat dissipation optimization structure of the electric riveting tool according to claim 1, characterized in that: A second installation cavity is formed in the base portion (13), and a power supply component (5) and a second cooling fan (6) are arranged in the second installation cavity. An air inlet (131) and an air outlet (132) communicating with the inside and outside of the second installation cavity are provided on the housing (1) at a position corresponding to the base portion (13). A second air duct is formed between the air inlet (131) and the air outlet (132), and the power supply component (5) and the second cooling fan (6) are both arranged in the second air duct.

3. The heat dissipation optimization structure of the electric riveting tool according to claim 1, characterized in that: The heat dissipation optimization structure of the electric riveting tool further comprises a head (7) and a tail (8); the riveting portion (11) comprises two first side walls (113) arranged opposite to each other in a first direction, and two second side walls (114) arranged opposite to each other in a second direction; one of the two first side walls (113) is provided with the head (7), and the other is provided with the tail (8); each second side wall (114) is provided with the air inlet (111) at a position corresponding to the riveting assembly (3); and the first direction and the second direction are perpendicular.

4. The heat dissipation optimization structure of the electric riveting tool according to claim 3, characterized in that: The exhaust hole (112) and the tail portion (8) are arranged on the same first side wall (113), the exhaust hole (112) is located below the tail portion (8), the handle portion (12) extends along a third direction, the exhaust direction of the exhaust hole (112) is inclined relative to the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

5. The heat dissipation optimization structure of the electric riveting tool according to claim 3, characterized in that: The riveting assembly (3) includes a reduction gear box (31), a gear mechanism (32), a nut and a lead screw (33), all of which are arranged in the first installation cavity. The lead screw (33) is arranged near the top of the first installation cavity and passes through the nut. The first cooling fan (4), the drive motor (2) and the reduction gear box (31) are all arranged at the bottom of the lead screw (33). The drive motor (2) is arranged between the first cooling fan (4) and the reduction gear box (31) and is transmission-connected to the reduction gear box (31). The gear mechanism (32) is transmission-connected to the nut and the reduction gear box (31).

6. The heat dissipation optimization structure of the electric riveting tool according to claim 5, characterized in that: The rotation axis of the lead screw (33) is parallel to the rotation axis of the output shaft of the drive motor (2) and is arranged on a different axis. The air inlet (111) includes a first hole group (1111) and a second hole group (1112). Each of the second side walls (114) is provided with the first hole group (1111) and the second hole group (1112). The first hole group (1111) is arranged opposite to the connection position between the nut and the lead screw (33), the second hole group (1112) is arranged opposite to the reduction box (31), and the second hole group (1112) is arranged close to the exhaust hole (112) relative to the first hole group (1111).

7. The heat dissipation optimization structure of the electric riveting tool according to claim 2, characterized in that: A circuit board (9) is provided in the handle portion (12), a baffle (115) is provided at the bottom of the first installation cavity, a wire threading hole (1151) is provided on the baffle (115), and the circuit board (9) is provided below the baffle (115). The drive motor (2), the first cooling fan (4), the power supply component (5) and the second cooling fan (6) are all electrically connected to the circuit board (9) through their respective wires, and the wires corresponding to the drive motor (2) and the first cooling fan (4) are electrically connected to the circuit board (9) after passing through the wire threading hole (1151).

8. The heat dissipation optimization structure of the electric riveting tool according to claim 7, characterized in that: The riveting assembly (3) comprises a reduction box (31), a gear mechanism (32), a nut and a lead screw (33), all of which are arranged in the first installation cavity. At least two vertical support plates (116) arranged at intervals are provided on the upper surface of the baffle (115). The vertical support plates (116) are capable of supporting the reduction box (31) in the first installation cavity. There are multiple air inlet holes (111), and the projection of at least one of the air inlet holes (111) is located between two adjacent vertical support plates (116).

9. The heat dissipation optimization structure of the electric riveting tool according to claim 2, characterized in that: There are multiple air inlets (131), all of which are in the shape of long strips. Each of the air inlets (131) has a first section (1311), a second section (1312), and a third section (1313) arranged in sequence along its length direction. The power supply assembly (5) only covers the second section (1312), the first section (1311) is located above the power supply assembly (5), and the third section (1313) is located below the power supply assembly (5).

10. The heat dissipation optimization structure of the electric riveting tool according to claim 2, characterized in that: The flow area of ​​the air inlet (111) is S1, and the flow area of ​​the air outlet (112) is S2, and they satisfy: S1 = (0.6-0.8) × S2; and / or, The flow area of ​​the air inlet (131) is S3, and the flow area of ​​the air outlet (132) is S4, and they satisfy: S3 = (0.6-0.8) x S4.

11. The heat dissipation optimization structure of the electric riveting tool according to claim 2, characterized in that: At least one of the air inlet (111), the air outlet (112), the air inlet (131) and the air outlet (132) is provided with a dustproof structure.

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