Safety protection structure of brushless motor

Abstract

The utility model discloses a brushless motor safety protection structure, which comprises a motor shell, the center of the inner end face of the motor shell is provided with a limiting rotating groove for limiting and four groups of positioning clamping grooves, and the four groups of positioning clamping grooves are formed in the side end face of the motor shell at equal intervals; and the number of the protection devices is four. According to the utility model, through the arrangement of the protection device, when protection operation is carried out on the outside of the motor shell, the multiple groups of heat dissipation guide plates and the limiting transverse plates can carry out omnibearing protection operation on the outside of the motor shell, and if external impact is received, the guide sliding shaft and the spring clamping ring can carry out elastic buffering in the fixed clamping seat at the moment; and meanwhile, a plurality of groups of heat dissipation guide plates can be matched with the fixed clamping seat and the connecting bottom plate to adsorb heat energy in the motor shell, so that the heat dissipation performance of the motor during operation is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motor equipment, in particular to a brushless motor safety protection structure. Background Art

[0002] A brushless motor is a type of DC motor, also known as a brushless DC motor. It consists of a motor body and a driver. It is a typical mechatronics product. Brushless motors can be used in smart cars, smart homes, smart communication equipment, consumer electronics, smart robots, personal care tools, smart kitchens and bathrooms, smart electronic locks, electric seats, electric sofas, bicycle electronic locks, power tools, automatic industrial products, smart cameras, photography gimbals and other industries.

[0003] For example, the utility model patent disclosed in the publication number CN212649227U is a protective structure for a brushless DC motor. The protective structure is a frame structure, which is detachably arranged on the back of the mounting plate of the brushless DC motor and can cover the brushless DC motor. The utility model has a compact structure and is easy to use.

[0004] Although the above-mentioned brushless motor safety protection structure has certain protection performance, the side of the above-mentioned brushless motor is only protected by a fixing rod, which makes the above-mentioned protection structure insufficient for the safety protection performance of the brushless motor, thereby reducing the protection performance of the brushless motor during operation. Therefore, a brushless motor safety protection structure is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a brushless motor safety protection structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a brushless motor safety protection structure, comprising a motor housing, wherein a limit groove for limiting is provided at the center of the inner end surface of the motor housing.

[0007] Positioning slots, wherein the positioning slots are provided in four groups, and the four groups of positioning slots are equidistantly arranged on the side end surface of the motor housing;

[0008] Protective devices, wherein the protective devices are provided with four groups in total, and the four groups of protective devices are fixedly arranged on the side end surface of the motor housing through the positioning slots;

[0009] The motor ferrule is fixedly arranged on the rear end face of the motor housing, and a connecting base is fixedly arranged at the center of the rear end face of the motor ferrule, and a heat-conducting shield is fixedly arranged on the inner end face of the connecting base.

[0010] Preferably, the protective device includes a connecting base plate for support, the upper end surface of the connecting base plate is equidistantly provided with fixed sockets for limiting, and the upper end surface of the fixed socket is equidistantly slidably connected with a guide slide shaft, the upper end surface of the guide slide shaft is fixedly provided with a heat dissipation guide plate, and the inner end surface of the heat dissipation guide plate is equidistantly provided with three groups of limiting cross plates, and a spring retaining ring is fixedly provided between the lower end surface of the heat dissipation guide plate and the fixed socket.

[0011] Preferably, the connecting base plate is fixedly connected to the motor housing via the positioning slot, which can effectively improve the stability of subsequent connections.

[0012] Preferably, the interior of the motor housing is hollow, which can effectively improve the sound insulation performance of the equipment.

[0013] Preferably, the guide sliding shaft and the protective device are coaxially arranged, which can effectively improve the stability of subsequent buffering.

[0014] Preferably, the motor ferrule and the heat conductive shield are both porous, so as to facilitate the subsequent rapid extraction of heat energy from inside the motor housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a protective device. When performing protective operations on the outside of the motor housing, multiple sets of heat dissipation guide plates and limit cross plates can perform all-round protective operations on the outside of the motor housing. At the same time, if it is subjected to external impact, the guide slide shaft and the spring clamp ring can perform elastic buffering inside the fixed card seat, which effectively improves the protection of the outside of the motor housing. At the same time, multiple sets of heat dissipation guide plates can cooperate with the fixed card seat and the connecting bottom plate to absorb the heat energy inside the motor housing, which effectively improves the heat dissipation performance of the motor when it is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the protective device of the utility model.

[0020] In the figure: 1-limiting rotating groove, 2-motor housing, 3-positioning slot, 4-protective device, 5-motor sleeve, 6-connecting base, 7-heat conductive guard plate, 41-limiting horizontal plate, 42-heat dissipation guide plate, 43-guide sliding shaft, 44-spring retaining ring, 45-fixing seat, 46-connecting bottom plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides an embodiment: a brushless motor safety protection structure, comprising a motor housing 2, wherein a limiting rotation groove 1 for limiting is provided at the center of the inner end surface of the motor housing 2.

[0023] Positioning slots 3, there are four groups of positioning slots 3, and the four groups of positioning slots 3 are equidistantly arranged on the side end surface of the motor housing 2;

[0024] Protective devices 4, there are four sets of protective devices 4, and the four sets of protective devices 4 are fixedly arranged on the side end surface of the motor housing 2 through the positioning slots 3;

[0025] The motor ferrule 5 is fixedly arranged on the rear end face of the motor housing 2, and a connecting base 6 is fixedly arranged at the center of the rear end face of the motor ferrule 5, and a heat conductive shield 7 is fixedly arranged on the inner end face of the connecting base 6.

[0026] The protective device 4 includes a connecting base plate 46 for support, and the upper end surface of the connecting base plate 46 is equidistantly provided with a fixed socket 45 for limiting, and the upper end surface of the fixed socket 45 is equidistantly slidably connected with a guide slide shaft 43, the upper end surface of the guide slide shaft 43 is fixedly provided with a heat dissipation guide plate 42, and the inner end surface of the heat dissipation guide plate 42 is equidistantly provided with three groups of limiting cross plates 41, and a spring retaining ring 44 is fixedly provided between the lower end surface of the heat dissipation guide plate 42 and the fixed socket 45.

[0027] The connecting base plate 46 is fixedly connected to the motor housing 2 via the positioning slot 3 , which can effectively improve the stability of subsequent connections.

[0028] The interior of the motor housing 2 is hollow, which can effectively improve the sound insulation performance of the equipment.

[0029] The guide sliding shaft 43 and the protection device 4 are coaxially arranged, which can effectively improve the stability of subsequent buffering.

[0030] The motor sleeve 5 and the heat-conducting shield 7 are both porous, which facilitates the subsequent rapid extraction of heat energy from the inside of the motor housing 2 .

[0031] Working principle: When in use, if it is necessary to perform heat conduction operation on the inside of the motor, the connecting base plate 46 can absorb the heat energy inside the motor, and at the same time, the connecting base plate 46 can transfer the heat to the inside of the heat dissipation guide plate 42 through the fixed clamping seat 45 and the guide slide shaft 43. The heat dissipation guide plate 42 can conduct heat energy in all directions, thereby improving the heat dissipation efficiency of the motor during operation. When protecting the motor, multiple sets of heat dissipation guide plates 42 and limiting cross plates 41 can perform all-round protective operations on the outside of the motor housing 2. If it is subjected to external impact, the guide slide shaft 43 and the spring retaining ring 44 can perform elastic buffering inside the fixed clamping seat 45, thereby effectively improving the protection of the outside of the motor housing 2.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless motor safety protection structure, comprising a motor housing (2), wherein a limiting groove (1) for limiting is provided at the center of the inner end surface of the motor housing (2), and the characteristics are: Positioning slots (3), wherein the positioning slots (3) are provided in four groups in total, and the four groups of positioning slots (3) are arranged at equal distances on the side end surface of the motor housing (2); Protective devices (4), wherein the protective devices (4) are provided in four groups in total, and the four groups of protective devices (4) are fixedly arranged on the side end surface of the motor housing (2) through the positioning slots (3); A motor ferrule (5) is fixedly arranged on the rear end face of the motor housing (2), and a connecting base (6) is fixedly arranged at the center of the rear end face of the motor ferrule (5), and a heat conduction shield (7) is fixedly arranged on the inner end face of the connecting base (6).

2. The brushless motor safety protection structure according to claim 1, characterized in that: The protective device (4) comprises a connecting base plate (46) for support, the upper end surface of the connecting base plate (46) is equidistantly provided with a fixed clamping seat (45) for limiting, and the upper end surface of the fixed clamping seat (45) is equidistantly slidably clamped with a guide slide shaft (43), the upper end surface of the guide slide shaft (43) is fixedly provided with a heat dissipation guide plate (42), and the inner end surface of the heat dissipation guide plate (42) is equidistantly provided with three groups of limiting horizontal plates (41), and a spring retaining ring (44) is fixedly provided between the lower end surface of the heat dissipation guide plate (42) and the fixed clamping seat (45).

3. The brushless motor safety protection structure according to claim 2, characterized in that: The connecting base plate (46) is fixedly connected to the motor housing (2) via the positioning slot (3).

4. The brushless motor safety protection structure according to claim 2, characterized in that: The interior of the motor housing (2) is hollow.

5. The brushless motor safety protection structure according to claim 2, characterized in that: The guide sliding shaft (43) and the protection device (4) are coaxially arranged.

6. The brushless motor safety protection structure according to claim 2, characterized in that: The motor sleeve (5) and the heat-conducting protective plate (7) are both porous.

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