Motor casing with good thermal conductivity

Abstract

The utility model belongs to the technical field of motors, and particularly relates to a motor casing with good thermal conductivity, the motor casing comprises an outer casing, an inner casing, a front cover and a rear cover, the inner casing is installed with the outer casing through the front cover and the rear cover and then is arranged in the outer casing; cooling fins are integrally formed around the periphery of the inner machine shell in the length direction, an air guide plate is arranged on the periphery, close to the front cover end, of the inner machine shell, and air partition plates a are symmetrically arranged at the upper end and the lower end in the length direction. A fan installation cavity is formed in the rear cover, fans are symmetrically installed on the two sides of the fan installation cavity with the air partition plate a as the center line, and the output ends of the two fans face the front cover and the rear cover correspondingly. The motor casing has the effects of improving the heat dissipation effect, protecting and dissipating heat.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a motor casing with good thermal conductivity. Background Art

[0002] The motor housing is the external protective structure of the motor. It not only protects the internal components of the motor, but also performs functions such as heat dissipation, support and fixation.

[0003] The current heat conduction solution for motors is mostly to install a fan to dissipate heat from the heat sink outside the motor housing. This solution has the following defects:

[0004] 1. In order to play a protective role (external vibration, impact and moisture-proof), the motor casing is generally thicker, which will inevitably affect the thermal conductivity of the casing and make it impossible for the heat to be effectively transferred to the heat sink. Therefore, in order to meet the thermal conductivity, the casing thickness must be designed to be thin, which cannot achieve both protection and heat dissipation.

[0005] 2. The motor uses a fan to dissipate heat from the heat sink. Due to the installation position, the heat dissipation effect is limited, the airflow lacks guidance, and it cannot be fully utilized for heat dissipation of the casing. The heat dissipation effect needs to be improved;

[0006] Therefore, in order to improve the above defects, we propose a motor casing with good thermal conductivity. Utility Model Content

[0007] The utility model aims to provide a motor casing with good thermal conductivity to solve the technical problems that protection and heat dissipation cannot be taken into account and the heat dissipation effect needs to be improved, so as to achieve the purpose of improving the heat dissipation effect and taking protection and heat dissipation into account.

[0008] In order to solve the above technical problems, the utility model provides a motor casing with good thermal conductivity, comprising: an outer casing, an inner casing, a front cover and a rear cover, wherein the inner casing is mounted with the outer casing through the front cover and the rear cover and then placed inside the outer casing;

[0009] The outer periphery of the inner housing is integrally formed with a heat sink along the length direction, and an air guide plate is provided on the outer periphery near the front cover end, and air baffles a are symmetrically provided at the upper and lower ends along the length direction;

[0010] A fan installation cavity is provided in the rear cover, and fans are symmetrically installed on both sides of the fan installation cavity with the wind shielding plate a as the center line, and the output ends of the two fans face the front cover and the rear cover respectively.

[0011] Furthermore, a spacing greater than 1 cm is provided between the heat sink and the air guide plate, and the air guide plate is designed with an inner arc surface facing the end of the heat sink.

[0012] Further, a spacing greater than 2 cm is provided between the air separation plate a and the air guide plate, and the other end of the air separation plate a in the length direction is attached to the outer casing.

[0013] Further, the corresponding rear cover end of the inner casing is designed to be closed, and the other section is designed to be detachable. There is an air separation plate b in the fan installation cavity on the same line as the two air separation plates a.

[0014] Further, a dust-proof cover is threadedly connected to the end of the rear cover away from the inner casing. The dust-proof cover is provided with a heat dissipation opening larger than the diameter of the fan installation cavity, and a heat dissipation net is installed in the heat dissipation opening.

[0015] Further, the front cover and the rear cover are provided with protruding snap rings corresponding to the outer casing and the inner casing. The outer circumferential wall of the protruding snap ring is adaptively docked with the inner circumferential wall of the outer casing, and a shock-absorbing mounting ring is additionally installed. The inner circumferential wall of the protruding snap ring is adaptively docked with the outer circumferential wall of the inner casing, and a shock-absorbing mounting ring is additionally installed. Through holes are opened on the front cover and the rear cover and are installed through bolts with the holes correspondingly arranged at both ends of the inner casing, so as to limit and abut against the outer casing sleeved on the periphery of the inner casing, and a shock-absorbing mounting ring is additionally installed, so that the outer casing is clamped on the periphery of the inner casing.

[0016] Further, the thickness of the inner casing is eight-tenths to nine-tenths of the thickness of the outer casing.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By adopting a double-layer casing design (outer casing and inner casing), not only the strength and stiffness of the motor casing are ensured, meeting the requirements of protection and support, but also a good heat dissipation effect is achieved by optimizing the heat dissipation structure of the inner casing. This design enables the motor casing to protect the internal components while ensuring the effective conduction and dissipation of heat.

[0019] 2. By integrally forming heat dissipation fins around the periphery of the inner casing and combining with the outer casing to form a closed annular space, two fans respectively generate an intake air flow and an exhaust air flow. The intake air flow brings in cold air, and through the air separation plate to block the air flow, the air flow flows along one side of the heat dissipation fins, and through the air guide plate, the air flow is guided to the other side of the heat dissipation fins for air flow, and the exhaust air flow extracts the hot air, so that the heat can be conducted and dissipated from the motor interior more quickly.

[0020] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, is described in detail as follows. Description of the Drawings

[0021] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the overall structure of the present utility model;

[0023] Figure 2 is a split structural diagram of the dust-proof cover and the rear cover of the present utility model;

[0024] Figure 3 is a plan view of the inner end face of the inner casing of the present utility model located inside the outer casing;

[0025] Figure 4 is an anatomical diagram of the inside of the outer casing of the overall structure of the present utility model.

[0026] In the figure:

[0027] 1. Outer casing;

[0028] 2. Inner casing; 21. Heat sink; 22. Air deflector; 23. Partition air deflector a;

[0029] 3. Front cover;

[0030] 4. Rear cover; 41. Fan installation cavity; 42. Fan; 43. Partition air deflector b; 44. Dust-proof cover; 45. Heat dissipation port

[0031] 5. Protruding snap ring. Specific embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0033] Embodiment:

[0034] As Figures 1 to 4 shown, a motor casing with good thermal conductivity includes: an outer casing 1, an inner casing 2, a front cover 3, and a rear cover 4. The inner casing 2 is installed with the outer casing 1 through the front cover 3 and the rear cover 4 and is thus placed inside the outer casing 1;

[0035] A heat sink 21 is integrally formed around the periphery of the inner casing 2 along the length direction, and a wind guide plate 22 is provided at the periphery near the front cover 3 end. Wind baffle plates a23 are symmetrically provided at the upper and lower ends along the length direction.

[0036] A fan installation cavity 41 is formed inside the rear cover 4. Fans 42 are symmetrically installed on both sides of the fan installation cavity 41 with the wind baffle plate a23 as the center line. The output ends of the two fans 42 face the front cover 3 and the rear cover 4 respectively.

[0037] It should be added that a spacing greater than 1 cm is provided between the heat sink 21 and the wind guide plate 22, and the inner arc surface of the wind guide plate 22 is designed towards the heat sink 21 end.

[0038] A spacing greater than 2 cm is provided between the wind baffle plate a23 and the wind guide plate 22, and the other end of the wind baffle plate a23 in the length direction is attached to the outer casing 1.

[0039] The end of the inner casing 2 corresponding to the rear cover 4 is of a closed design, and the other section is of a detachable design. There is a wind baffle plate b43 in the fan installation cavity 41 on the same line as the two groups of wind baffle plates a23.

[0040] It should be noted that the thickness of the inner casing 2 is eight - tenths to nine - tenths of the thickness of the outer casing 1.

[0041] In Embodiment 2, a dust - proof cover 44 is thread - connected to the end of the rear cover 4 far from the inner casing 2. The dust - proof cover 44 can be detachably installed, so as to be cleaned to avoid dust blockage. The dust - proof cover 44 is provided with a heat dissipation port 45 larger than the diameter of the fan installation cavity 41, and a heat dissipation net is installed in the heat dissipation port 45. The heat dissipation port 45 and the heat dissipation net can not only ensure the smooth flow of air, but also effectively block the entry of dust and sundries.

[0042] In Embodiment 3, raised snap rings 5 are provided at the ends of the front cover 3 and the rear cover 4 corresponding to the outer casing 1 and the inner casing 2. The outer circumferential wall of the raised snap ring 5 is adaptively docked with the inner circumferential wall of the outer casing 1, and a shock - absorbing mounting ring is added. The inner circumferential wall of the raised snap ring 5 is adaptively docked with the outer circumferential wall of the inner casing 2, and a shock - absorbing mounting ring is added. Hole positions are provided on the front cover 3 and the rear cover 4 and are installed through bolts with the hole positions correspondingly arranged at both ends of the inner casing 2, so as to limit and resist the outer casing 1 sleeved around the periphery of the inner casing 2, and a shock - absorbing mounting ring is added, so that the outer casing 1 is clamped around the periphery of the inner casing 2.

[0043] In the above embodiments, the outer circumferential wall of the raised snap ring 5 is adaptively docked with the inner circumferential wall of the outer casing 1, and a shock - absorbing mounting ring is added. The inner circumferential wall is then adaptively docked with the outer circumferential wall of the inner casing 2, and a shock - absorbing mounting ring is also added, ensuring that the installation of the motor casing is more closely and stably fitted. At the same time, shock - absorbing mounting rings are added at both ends of the outer casing 1, making the clamping of the outer casing 1 more stable when the front cover 3 and the rear cover 4 are installed on the inner casing 2.

[0044] It should be noted that when installing the outer casing 1, the inner casing 2, the front cover 3 and the rear cover 4, the installation sequence is as follows: install the motor assembly into the inner casing 2, install the inner casing 2 onto the rear cover 4, sleeved with the outer casing 1, and finally install the front cover 3.

[0045] In summary, when the motor works as a whole, the heat generated inside is first conducted through the inner casing 2 to the peripheral heat sinks 21. The two fans 42 respectively generate an intake air flow and an exhaust air flow. The intake air flow brings in cold air, which is blocked by the air separation plate a23, and the air flows along one side of the heat sink 21. The air is guided to the other side of the heat sink 21 through the air guide plate 22, and the hot air is extracted by the exhaust air flow, so that the heat can be conducted and dissipated from the inside of the motor more quickly.

[0046] Each component selected in this application is a common standard component or a component known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0047] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] Taking the above-mentioned ideal embodiments of the present invention as an inspiration, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A motor housing with good thermal conductivity, characterized in that: include: An outer casing (1), an inner casing (2), a front cover (3) and a rear cover (4), wherein the inner casing (2) is mounted with the outer casing (1) via the front cover (3) and the rear cover (4) and is then placed inside the outer casing (1); The outer periphery of the inner housing (2) is integrally formed with a heat sink (21) along the length direction, and an air guide plate (22) is provided on the outer periphery close to the end of the front cover (3), and air baffles a (23) are symmetrically provided at the upper and lower ends along the length direction; A fan installation cavity (41) is provided in the rear cover (4), and fans (42) are symmetrically installed on both sides of the fan installation cavity (41) with the wind baffle a (23) as the center line, and the output ends of the two fans (42) face the front cover (3) and the rear cover (4) respectively.

2. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: A spacing greater than 1 cm is provided between the heat sink (21) and the air guide plate (22), and the air guide plate (22) is designed with an inner arc surface facing the end of the heat sink (21).

3. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: A spacing greater than 2 cm is provided between the wind baffle plate a (23) and the wind guide plate (22), and the other end of the wind baffle plate a (23) in the length direction is in contact with the outer casing (1).

4. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: The corresponding rear cover (4) end of the inner casing (2) is of closed design, and the other end is of detachable design. An air baffle b (43) is provided in the fan installation cavity (41) on the same line as the two sets of air baffles a (23).

5. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: The end of the rear cover (4) away from the inner casing (2) is threadedly connected with a dust cover (44), and the dust cover (44) is provided with a heat dissipation port (45) larger than the diameter of the fan installation cavity (41), and a heat dissipation net is installed in the heat dissipation port (45).

6. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: The front cover (3) and the rear cover (4) are provided with raised snap rings (5) at the ends corresponding to the outer casing (1) and the inner casing (2); the outer circumferential wall of the raised snap ring (5) is adapted to be coupled with the inner circumferential wall of the outer casing (1), and a shock-absorbing mounting ring is installed; the inner circumferential wall of the raised snap ring (5) is adapted to be coupled with the outer circumferential wall of the inner casing (2), and a shock-absorbing mounting ring is installed; holes are provided on the front cover (3) and the rear cover (4) and are installed with bolts at holes corresponding to the ends of the inner casing (2), thereby limiting the outer casing (1) sleeved on the outer periphery of the inner casing (2), and a shock-absorbing mounting ring is installed, so that the outer casing (1) is clamped on the outer periphery of the inner casing (2).

7. A motor housing with good thermal conductivity as claimed in claim 1, characterized in that: The thickness of the inner casing (2) is eight-tenths to nine-tenths of the thickness of the outer casing (1).

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