Motor controller mounting structure

Abstract

The utility model provides a kind of motor controller mounting structure, belong to motor technical field.It solves the problem of inconvenient disassembly of existing mounting structure.In the utility model, motor includes casing and fan cover, controller includes rectangular box body, casing top is equipped with outlet hole, box body bottom is equipped with inlet, mounting structure includes vertical forming in casing top and being cylindrical connecting seat, outlet hole is opposite and communicates connecting seat inner chamber;Box body one end bottom vertical formation has locating ring, inlet is opposite and communicates locating ring inner chamber, connecting seat upper end is clamped in locating ring, locating ring and connecting seat form the spacing structure for limiting box body to move down between;Box body other end bottom has block support part, support part one end is pressed on the outer side wall of air guide cover, support part is detachably fixed with fan cover by the screw one along the axis and extends in casing radial direction.The utility model is convenient for controller disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and relates to a motor controller, and more particularly to a motor controller mounting structure. Background Technology

[0002] The motor controller is a key device for controlling the operation of a motor. It precisely controls the motor's starting, stopping, speed, direction, and torque by adjusting parameters such as current, voltage, and frequency.

[0003] An existing controller structure, such as the easily installable motor controller housing disclosed in the Chinese Patent Database (CN209314165U), includes a housing base and a housing top cover. The housing base has a first base mounting hole, a second base mounting hole, a third base mounting hole, and a fourth base mounting hole at its four ends. The housing top cover has a housing top cover fixing mounting hole at its four ends. The upper end of the housing base has a first fixing post, a second fixing post, a third fixing post, and a fourth fixing post. A fan-shaped heat dissipation hole is provided between the first and fourth fixing posts, and between the second and third fixing posts... The device includes a wire extension plate, a first mounting plate between the third and fourth fixing posts, a second mounting plate between the first and second fixing posts, a wire extension plate with a wire hole in the center, a wire protection ring within the wire hole, and a protective ring groove. One end of the first mounting plate has a first mounting plate groove and a first mounting plate moving groove, and one end of the second mounting plate has a second mounting plate groove and a second mounting plate moving groove. The first mounting plate moving groove contains a first L-shaped pull plate, and the second mounting plate moving groove contains a second L-shaped pull plate.

[0004] In use, the controller is fixed to the mounting platform or motor housing by bolts and the fourth base mounting holes. Since there are multiple fourth base mounting holes, the entire installation involves tightening multiple bolts, which is quite cumbersome. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a motor controller mounting structure that is easy to install and has good heat dissipation.

[0006] The purpose of this utility model can be achieved through the following technical solution: a motor controller mounting structure, the motor including a housing and a fan shroud fixed to the rear end of the housing, the controller including a box horizontally set above the housing, the box being rectangular and its length extending along the axial direction of the housing, the top of the housing having a cable outlet hole, and the bottom of the box having a cable inlet, characterized in that the mounting structure includes a vertically formed cylindrical connecting seat on the top of the housing, with the cable outlet hole facing and communicating with the inner cavity of the connecting seat; a positioning ring matching the connecting seat is vertically formed at the bottom of one end of the box, with the cable inlet facing and communicating with the inner cavity of the positioning ring, the upper end of the connecting seat being clamped in the positioning ring, and a limiting structure for restricting the downward movement of the box being formed between the positioning ring and the connecting seat; there is a gap between the other end of the box and the outer wall of the housing, and the gap is set facing the opening of the fan shroud, the bottom of the other end of the box having a block-shaped support part, one end of the support part pressing against the outer wall of the fan shroud, and the support part being detachably fixed to the fan shroud by a screw extending radially along the axis of the housing.

[0007] During installation, first press the positioning ring into the connecting seat until the limiting structure restricts the downward movement of the box. Then tighten the screw to completely lock the box. In this application, it is only necessary to press one end of the box to make the connecting seat lock in the positioning ring and tighten the only screw to stabilize the controller. This greatly simplifies the controller installation steps and makes the controller installation more convenient.

[0008] Meanwhile, a gap is set between the other end of the box and the outer wall of the casing, and the gap is set directly opposite the opening of the air guide shroud. In actual use, the air generated by the fan blades inside the shroud rotating with the motor rotor shaft will be partially blown into the gap, which will greatly accelerate the heat dissipation of the box and thus enhance the heat dissipation and working stability of the controller.

[0009] In the above-mentioned motor controller installation structure, a ring of protrusions is formed on the outer wall of the rear end of the housing. The protrusions press against the inner wall of the front end of the fan cover. The fan cover is fixed to the protrusions by a screw that passes through the fan cover and is screwed into the protrusions. The number of protrusions and screws are the same and their positions correspond one-to-one.

[0010] In the aforementioned motor controller mounting structure, one of the screws, known as screw one, is used as the second screw, and the side wall of the fan cover is clamped and positioned between the support and the corresponding protrusion. The housing and fan cover share a single screw for positioning, simplifying both the structure and assembly steps, and further facilitating controller installation.

[0011] In the aforementioned motor controller mounting structure, the support portion has a through hole for the screw rod to pass through. The through hole is strip-shaped and its length extends along the axial direction of the housing. The strip-shaped through hole provides more mounting positions for the screw, thereby reducing the requirements for the machining and assembly precision of the housing.

[0012] In the aforementioned motor controller mounting structure, the limiting structure includes a ring-shaped rubber pad disposed within the positioning ring, with both sides of the rubber pad pressed firmly against the bottom wall of the housing and the top wall of the connecting seat, respectively. The use of a rubber pad in the limiting structure not only restricts the downward movement of the housing but also enhances the sealing effect between the housing and the connecting seat, thereby improving waterproofing performance.

[0013] In the aforementioned motor controller mounting structure, the axial cross-section of the rubber pad is L-shaped. One end of the rubber pad is sandwiched between the bottom wall of the housing and the top wall of the connector, while the outer wall of the other end of the rubber pad is pressed tightly against the inner wall of the connector. This design extends the sealing path formed by the rubber pad between the housing and the connector, thereby improving waterproofing performance.

[0014] In the above-mentioned motor controller mounting structure, a heat dissipation strip is integrally formed on the outer wall of the housing. There are multiple heat dissipation strips and they are evenly distributed along the circumference of the housing. Each heat dissipation strip is located in the above-mentioned gap. The length of the heat dissipation strip extends along the axial direction of the housing, and the rear end of the heat dissipation strip extends into the fan shroud to play a guiding role, so as to introduce the air blown out of the fan shroud into the gap more smoothly and accelerate the heat dissipation of the controller.

[0015] In the above-mentioned motor controller mounting structure, the support and the housing are an integrated structure.

[0016] Compared with existing technologies, the mounting structure of this motor controller has the following advantages: 1. In this application, it is only necessary to press one end of the box to make the connecting seat lock in the positioning ring and tighten the only screw to stabilize the controller. This greatly simplifies the controller installation steps and makes the controller installation more convenient.

[0017] 2. A gap is set between the other end of the box and the outer wall of the casing, and the gap is set directly opposite the opening of the air guide shroud. In actual use, the air generated by the fan blades inside the shroud rotating with the motor rotor shaft will be partially blown into the gap, which will greatly accelerate the heat dissipation of the box and thus enhance the heat dissipation and working stability of the controller.

[0018] 3. The housing and the fan cover share a single screw for positioning, which simplifies the structure and assembly steps, and further facilitates the installation of the controller. Attached Figure Description

[0019] Figure 1 This is a side view of the motor.

[0020] Figure 2 This is a cross-sectional view of the motor.

[0021] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0022] Figure 4 This is a 3D schematic diagram of the motor after the controller has been removed.

[0023] In the diagram, 1. Housing; 1a. Protrusion; 1b. Cable outlet; 1c. Connector; 1d. Heat sink; 2. Fan cover; 3. Screw 2; 4. Box body; 4a. Cable inlet; 4b. Positioning ring; 4c. Support; 4d. Through hole; 5. Gap; 6. Screw 1; 7. Rubber pad; 8. Fan blade. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] Example 1: As Figure 1 and Figure 2 As shown, in the motor controller mounting structure, the motor includes a housing 1 and a fan shroud 2 fixed to the rear end of the housing 1, and the fan shroud 2 and the housing 1 are coaxially arranged. The fan shroud 2 has its opening facing forward, and its rear end is densely covered with air inlets, the axis of which extends back and forth.

[0026] In the actual product, the installation method of the fan cover 2 is as follows: A ring of protrusions 1a is formed on the outer rear wall of the housing 1, and the ring of protrusions 1a is evenly distributed around the circumference of the housing 1. The protrusions 1a press against the inner front wall of the fan cover 2. The fan cover 2 is fixed to the protrusions 1a by screws 2 and 3, which pass through the fan cover 2 and are screwed into the protrusions 1a. The number of protrusions 1a and screws 2 and 3 are the same and their positions correspond one-to-one. Specifically, there are connecting holes that penetrate radially on the side wall of the fan cover 2. The protrusions 1a are provided with threaded holes. The number of threaded holes, screws 2 and 3 and connecting holes are the same and their positions correspond one-to-one. The rod of screw 2 and 3 passes through the corresponding connecting hole and is screwed into the corresponding threaded hole.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the controller includes a box 4 horizontally positioned above the housing 1 and a cover mounted on the box 4, with the cover typically secured to the box 4 by several bolts. The box 4 is rectangular and extends axially along the housing 1. The housing 1 has a cable outlet 1b at its top, and the box 4 has a cable inlet 4a at its bottom. This mounting structure includes a cylindrical connecting seat 1c vertically formed on the top of the housing 1. The connecting seat 1c and the housing 1 are an integral structure, with the cable outlet 1b directly facing and communicating with the inner cavity of the connecting seat 1c.

[0028] The box body 4 has a vertically formed positioning ring 4b at one bottom end that matches the connecting seat 1c, with the inlet 4a facing and communicating with the inner cavity of the positioning ring 4b. The upper end of the connecting seat 1c is locked inside the positioning ring 4b, and a limiting structure is formed between the positioning ring 4b and the connecting seat 1c to restrict the downward movement of the box body 4. There is a gap 5 between the other end of the box body 4 and the outer wall of the housing 1, and the gap 5 is set directly opposite the opening of the air guide shroud 2. The bottom of the other end of the box body 4 has a block-shaped support part 4c, and preferably the support part 4c and the box body 4 are an integral structure. The length of the support part 4c extends along the axial direction of the housing 1, and one end of the support part 4c abuts against the outer wall of the air guide shroud 2. The support part 4c is detachably fixed to the air guide shroud 2 by a screw 6 extending radially along the axis of the housing 1, and there is only one screw 6.

[0029] During installation, first press the positioning ring 4b into the connecting seat 1c until the limiting structure restricts the downward movement of the box 4. Then tighten the screw 6 to completely lock the box 4. In this application, it is only necessary to press one end of the box 4 to make the connecting seat 1c clamped in the positioning ring 4b and tighten the only screw 6 to stably position the controller. This greatly simplifies the controller installation steps and makes the controller installation more convenient.

[0030] Meanwhile, a gap 5 is set between the other end of the box 4 and the outer wall of the casing 1, and the gap 5 is set directly opposite the opening of the air guide shroud 2. In actual use, the air generated by the fan blades 8 inside the air guide shroud 2 rotating with the motor rotor shaft will be partially blown into the gap 5, which will greatly accelerate the heat dissipation of the box 4, thereby enhancing the heat dissipation and working stability of the controller.

[0031] In this embodiment, like Figure 3 As shown, one of the screws, number 3, is the aforementioned screw number 6. In this case, the support portion 4c has a through hole 4d through which the rod of screw number 6 passes. The side wall of the fan shroud 2 is clamped and positioned between the support portion 4c and the corresponding protrusion 1a, and the head of screw number 6 is pressed against the support portion 4c. The housing 4 and the fan shroud 2 share a single screw for positioning, simplifying both the structure and assembly steps, and further facilitating controller installation. Further explanation: the through hole 4d is strip-shaped and its length extends axially along the housing 1. The strip-shaped through hole 4d provides more mounting positions for screw number 6, thereby reducing the requirements for the machining and assembly precision of the housing 4.

[0032] like Figure 2 and Figure 3As shown, the limiting structure includes a ring-shaped rubber pad 7 disposed within the positioning ring 4b, with both sides of the rubber pad 7 pressed against the bottom wall of the box body 4 and the top wall of the connecting seat 1c, respectively. The use of the rubber pad 7 in the limiting structure, while limiting the downward movement of the box body 4, also enhances the sealing effect between the box body 4 and the connecting seat 1c, thereby improving waterproof performance. Further, the axial cross-section of the rubber pad 7 is L-shaped, with one end of the rubber pad 7 sandwiched between the bottom wall of the box body 4 and the top wall of the connecting seat 1c, and the outer wall of the other end of the rubber pad 7 pressed against the inner wall of the connecting seat 1c. This design extends the sealing path formed by the rubber pad 7 between the box body 4 and the connecting seat 1c, thereby improving waterproof performance.

[0033] In actual products, such as Figure 1 As shown, a heat dissipation strip 1d is integrally formed on the outer side wall of the housing 1. There are multiple heat dissipation strips 1d, which are evenly distributed around the circumference of the housing 1. Each heat dissipation strip 1d is located in the aforementioned gap 5. The length of the heat dissipation strip 1d extends along the axial direction of the housing 1, and the rear end of the heat dissipation strip 1d extends into the fan shroud 2, which serves as a guide to more smoothly introduce the air blown out by the fan shroud 2 into the gap 5, thereby accelerating the heat dissipation of the controller.

[0034] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the limiting structure includes the top surface of the connecting seat 1c and the bottom surface of the box 4, and the top surface of the connecting seat 1c is pressed against the bottom surface of the box 4.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A motor controller mounting structure, wherein the motor includes a housing (1) and a fan cover (2) fixed to the rear end of the housing (1), and the controller includes a box (4) horizontally disposed above the housing (1), the box (4) being rectangular and extending axially along the housing (1), the top of the housing (1) having a wire outlet (1b), and the bottom of the box (4) having a wire inlet (4a), characterized in that, This mounting structure includes a vertically formed cylindrical connecting seat (1c) on the top of the housing (1), with the cable outlet (1b) facing and communicating with the inner cavity of the connecting seat (1c); a positioning ring (4b) matching the connecting seat (1c) is vertically formed at the bottom of one end of the box (4), with the cable inlet (4a) facing and communicating with the inner cavity of the positioning ring (4b); the upper end of the connecting seat (1c) is clamped in the positioning ring (4b), and the positioning ring (4b) and the connecting seat (1c) are in a certain shape. A limiting structure is used to restrict the downward movement of the box (4); there is a gap (5) between the other end of the box (4) and the outer wall of the housing (1), and the gap (5) is set directly opposite the opening of the air guide hood (2). The bottom of the other end of the box (4) has a block-shaped support (4c). One end of the support (4c) presses against the outer wall of the air guide hood (2), and the support (4c) is detachably fixed to the air guide hood (2) by a screw (6) extending radially along the housing (1) on its axis.

2. The motor controller mounting structure according to claim 1, characterized in that, A ring of protrusions (1a) is formed on the outer wall of the rear end of the housing (1). The protrusions (1a) press against the inner wall of the front end of the fan cover (2). The fan cover (2) is fixed to the protrusions (1a) by a screw (3) that passes through the fan cover (2) and is screwed into the protrusions (1a) through the rod. The number of protrusions (1a) and screws (3) are the same and their positions correspond one-to-one.

3. The motor controller mounting structure according to claim 2, characterized in that, One of the screws, the second one (3), is the same as the first one (6) mentioned above, and the side wall of the hood (2) is clamped and positioned between the support (4c) and the corresponding protrusion (1a).

4. The motor controller mounting structure according to claim 3, characterized in that, The support (4c) is provided with a through hole (4d) through which the screw (6) rod passes. The through hole (4d) is strip-shaped and its length extends along the axial direction of the housing (1).

5. The motor controller mounting structure according to claim 1, characterized in that, The limiting structure includes a ring-shaped rubber pad (8) set inside the positioning ring (4b), and the two sides of the rubber pad (8) are pressed against the bottom wall of the box body (4) and the top wall of the connecting seat (1c) respectively.

6. The motor controller mounting structure according to claim 5, characterized in that, The axial section of the rubber pad (8) is L-shaped. One end of the rubber pad (8) is sandwiched between the bottom wall of the box (4) and the top wall of the connecting seat (1c). The outer wall of the other end of the rubber pad (8) is attached to the inner wall of the connecting seat (1c).

7. The motor controller mounting structure according to claim 1, characterized in that, A heat dissipation strip (1d) is integrally formed on the outer side wall of the housing (1). There are multiple heat dissipation strips (1d) and they are evenly distributed along the circumference of the housing (1). Each heat dissipation strip (1d) is located in the above-mentioned gap (5). The length of the heat dissipation strip (1d) extends along the axial direction of the housing (1), and the rear end of the heat dissipation strip (1d) extends into the fan cover (2).

8. The motor controller mounting structure according to claim 1, characterized in that, The support (4c) and the box (4) are an integral structure.

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