Motor all-in-one machine

Abstract

The motor all-in-one machine comprises a motor; the frequency converter is arranged on a motor shell of the motor and comprises a frequency converter module, the frequency converter module comprises a body, a heating element, a first locking hole and a second locking hole, the body is attached to the motor shell, the frequency converter module further comprises a containing space, and the heating element comprises a third locking hole which is arranged corresponding to the first locking hole and used for allowing a first screw to penetrate through and be locked. The heating element is locked and attached to the motor shell, and a second screw penetrates through the second locking hole and is locked, so that the frequency converter module is locked on the motor shell; the control module is detachably arranged in the accommodating space; the outer cover is used for covering the accommodating space; the wiring component is fixedly arranged on the motor shell; and the power line is matched with the wiring component and is connected with the motor and the frequency converter.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more particularly to a motor-driven integrated machine that has efficient heat dissipation, is easy to assemble and maintain, and can reduce size and cost. Background Art

[0002] Motor systems are commonly found in various motor applications. They typically include an inverter and a motor, where the inverter and the motor are independent devices or components, and the inverter is used to drive the motor.

[0003] Generally speaking, inverters utilize external heat sinks or a housing base to dissipate heat from heat-generating components within the inverter, such as insulated-gate bipolar transistors (IGBTs), capacitors, and / or diodes. Motors, on the other hand, utilize their own housing to dissipate heat. This cooling can be achieved through air or liquid cooling. Air cooling can be achieved by adding fins to the housing and using a fan. Liquid cooling can be achieved by installing cooling channels that circulate through the housing or are attached to the exterior of the housing.

[0004] Because the inverter and motor in traditional motor systems are installed independently, it is impossible to effectively integrate and share the heat dissipation mechanisms of the inverter and motor. As a result, the size and cost of traditional motor systems are relatively high, the heat dissipation effect is poor, and the assembly structure and method are also poor.

[0005] Therefore, how to develop a motor system with an integrated motor drive, namely, a motor-in-one machine, to overcome the aforementioned problems is an urgent issue in this field. Utility Model Content

[0006] This invention relates to an all-in-one motor. When the inverter module of the inverter of the all-in-one motor is attached to the side wall of the motor housing, a first screw is used to penetrate the first locking hole, the third locking hole, and the housing locking hole and then lock the module. This allows the heating element to be directly locked and attached to the side wall of the motor housing. In this way, the heat energy generated by the heating element can be dissipated using the heat dissipation mechanism of the motor. That is, the inverter and the motor share the heat dissipation mechanism of the motor, thereby improving the heat dissipation efficiency of the all-in-one motor and reducing both the size and cost. In addition, because the control module of the inverter of the all-in-one motor in this invention is detachably arranged in the accommodation space of the inverter module body, this can help shorten the locking point distance from the heating element to the motor housing, thereby improving the operational accuracy of the control fixing tool.

[0007] To achieve the aforementioned objectives, a preferred embodiment of the present invention provides a motor-integrated machine, comprising: a motor; an inverter, arranged on a motor housing of the motor, and comprising: an inverter module comprising a main body, at least one heating element, at least one first locking hole and at least one second locking hole, wherein the main body is attached to the motor housing and further comprises an accommodating space, at least one heating element comprises at least one third locking hole, the first locking hole is formed on the main body and is arranged corresponding to the third locking hole, the first locking hole and the third locking hole are for a first screw to pass through and lock, so that the heating element is directly locked and attached to the motor housing, the second locking hole is formed on the main body and is for a second screw to pass through and lock, so that the inverter module is locked to the motor housing; a control module, detachably arranged in the accommodating space; and an outer cover for covering the accommodating space; a wiring component, fixedly mounted on the motor housing; and at least one set of power lines, cooperating with the wiring component to connect the motor and the inverter.

[0008] In an embodiment of the present invention, the frequency converter is disposed on a first wall surface of the motor housing along a radial direction of the motor.

[0009] In one embodiment of the present invention, the first wall further includes at least one housing locking hole corresponding to the third locking hole for the first screw to pass through.

[0010] In one embodiment of the present invention, the at least one set of power lines includes an L-shaped terminal. The L-shaped terminal includes a first terminal disposed on the wiring component and connected to the wiring component, and the first terminal is located on the first wall.

[0011] In one embodiment of the present invention, the first terminal protrudes from the first wall.

[0012] In one embodiment of the present invention, the L-shaped terminal includes a second terminal, which is perpendicular to the first terminal and presents an L-shaped structure. The second terminal is arranged on a second wall of the motor housing, wherein the second wall is adjacent to the first wall in a vertical manner, and a first end of the second terminal is connected to the first terminal, and a second end of the second terminal is connected to a cable conductor.

[0013] In one embodiment of the present invention, the first terminal further includes a fourth locking hole, the second terminal further includes a fifth locking hole, and the inverter module further includes at least one sixth locking hole formed on the main body and arranged at a position corresponding to the fourth locking hole, wherein the fifth locking hole is used for locking with a third screw to lock the second terminal to the second wall surface.

[0014] In one embodiment of the present invention, when the inverter module is locked and attached to a first wall surface of the motor housing, the fourth locking hole and the sixth locking hole are used for locking by a fourth screw, so that the first terminal is locked on the wiring component.

[0015] In one embodiment of the present invention, a fixing tool is further provided in the accommodating space to lock the first screw with the first locking hole, the third locking hole and the housing locking hole, so as to shorten the distance from the heating element to a locking point of the motor housing.

[0016] In one embodiment of the present invention, the control module is first connected to peripheral instruments and equipment, and then assembled back into the inverter module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the motor integrated machine of the preferred embodiment of the present case;

[0018] Figure 2 for Figure 1 A schematic side view of a drive module of the frequency converter shown;

[0019] Figure 3 for Figure 1 The locking diagram between the motor and the inverter is shown in the figure;

[0020] Figure 4A 、 Figure 4B and Figure 4C The following diagrams respectively show the assembly of the inverter components of this case to the motor in sequence;

[0021] Figure 5A for Figure 1 The structural diagram of the motor shown;

[0022] Figure 5B for Figure 5A A partial enlarged schematic diagram of the motor shown;

[0023] Figure 5C for Figure 5A The structural diagram of the power line is shown.

[0024]

Explanation of symbols

[0025] 1: Motor integrated machine

[0026] 2: Motor

[0027] 3: Frequency Converter

[0028] 20: Motor housing

[0029] 200: First wall

[0030] 21: Shell locking hole

[0031] 4: First screw

[0032] 30: Inverter module

[0033] 31: Control module

[0034] 32: Outer cover

[0035] 300:Ontology

[0036] 301: Heating element

[0037] 302: First locking hole

[0038] 303: Second locking hole

[0039] 304: Accommodation space

[0040] 301a: Third locking hole

[0041] 9:Fixing tools

[0042] 5: Wiring section

[0043] 6: Power line

[0044] 60: L-shaped terminal

[0045] 61: Cable

[0046] 62: First terminal

[0047] 63: Second terminal

[0048] 64: Fourth locking hole

[0049] 201: Second wall

[0050] 65: Fifth locking hole

[0051] 7: The third screw

[0052] 305: Sixth locking hole DETAILED DESCRIPTION

[0053] Some typical embodiments that embody the features and advantages of this invention will be described in detail in the following description. It should be understood that this invention is capable of various variations in various aspects without departing from the scope of this invention, and that the descriptions and illustrations herein are intended to be illustrative in nature and not to limit this invention.

[0054] See also Figure 1 、 Figure 2 and Figure 3The motor all-in-one 1 mainly includes a motor 2 and a frequency converter 3, which are assembled into an integrated structure. The motor 2 can be applied to many fields, so that the motor all-in-one 1 of this case can be connected to an air compressor to drive the air compressor to operate, or used for a robotic arm to control axial rotation, or used for a liquid pump, but it is not intended to limit this case. In one embodiment of the present case, the frequency converter 3 is arranged on the first wall 200 of the motor housing 20 along a radial direction of the motor shaft of the motor 2, that is, the radial side wall of the motor 2, to be assembled with the motor 2 to form an integrated structure of a side-mounted motor frequency converter. In some other embodiments, the frequency converter 3 can also be arranged at one end of the motor 2 along the motor shaft to form an integrated structure of a motor frequency converter stacked axially front and back with the motor 2, but it is not intended to limit this case. In addition, in some embodiments, the frequency converter 3 shares a cooling channel with the motor 2, such as sharing the cooling channel of the motor 2, to further reduce the volume of the motor all-in-one 1. In other embodiments, the first wall 200 of the motor housing 20 further includes at least one housing locking hole 21 for at least one first screw 4 (eg Figure 3 Detailed description is given in the following paragraphs.

[0055] The inverter 3 includes an inverter module 30, a control module 31 and an outer cover 32. The inverter module 30 is used to control the operation of the motor 2 and can be attached to the first wall 200 of the motor housing 20 by a locking method. The inverter module 30 includes a body 300, at least one heating element 301 (such as Figure 3 ), at least one first locking hole 302, and at least one second locking hole 303. The heating element 301 may be provided with a thermally conductive material for contacting the first wall 200. For example, the heating element 301 may be attached to the first wall 200 of the motor housing 20 of the motor 2 in a locking manner using a first screw 4. The main body 300 further includes an accommodating space 304 formed by multiple recessed sidewalls of the main body 300. The control module 31 may be accommodated in the accommodating space 304.

[0056] The heating element 301 may be, for example, an insulated gate bipolar transistor (IGBT), a capacitor, and / or a diode. When the inverter module 30 is operating, the primary heat energy of the inverter module 30 is generated by the heating element 301. Furthermore, each heating element 301 further includes at least one third locking hole 301a. The position of the third locking hole 301a may correspond to the housing locking hole 21 of the motor housing 20. When these heating elements 301 are disposed in the accommodation space 304 of the main body 300 and secured to the housing locking hole 21 of the motor housing 20 by the first screw 4 passing through the third locking hole 301a, heat can be conducted through the main body 300. For example, the provision of a thermally conductive material on the heating element 301 and the thermal conductivity of the first wall 200 may assist in and complement the thermal conduction. It should be noted that in this configuration, each heating element 301 can be locked in the body 300 or on the side wall of the body 300. A heat-conducting material is provided on the heating element 301 and abuts against the first wall 200 to achieve better heat conduction effect.

[0057] In some embodiments, the first locking hole 302 is formed on the body 300 and is arranged corresponding to or adjacent to the heating element 301. For example, the first locking hole 302 can be respectively arranged corresponding to the third locking hole 301a of the heating element 301 and the housing locking hole 21 of the motor housing 20. When the body 300 of the inverter module 30 is attached to the first wall 200 of the motor housing 20 of the motor 2, the first screw 4 can be used to penetrate the first locking hole 302, the third locking hole 301a, and the housing locking hole 21 and lock them. This allows the heating element 301 to be directly locked along with the body 300 and attached to the first wall 200 of the motor housing 20 of the motor 2, thereby achieving both locking and heat conduction effects. Because the heating element 301 of the inverter module 30 of the inverter 3 is locked and attached to the first wall 200 of the motor housing 20 of the motor 2, the heat energy generated by the heating element 301 can be conducted and discharged outside the motor-integrated device 1 using the heat dissipation mechanism of the motor 2, for example, through the motor housing 20 or internal cooling flow channels of the motor 2. In this way, the inverter 3 can share the heat dissipation mechanism of the motor 2 with the motor 2, thereby improving the heat dissipation efficiency of the motor-integrated device 1 while reducing both the size and cost.

[0058] The second locking holes 303 are formed in the body 300 and are positioned relative to the first locking holes 302, substantially around the periphery of the body 300 and arranged in a surrounding manner. For example, the second locking holes 303 are arranged around the first locking holes 302. Therefore, in one embodiment, the first locking holes 302 are substantially located in the middle region of the body 300. When the inverter module 30 is attached to the first wall 200 of the motor housing 20 of the motor 2, the second locking holes 303 allow a second screw (not shown) to pass through and be locked to the first wall 200 of the motor housing 20 of the motor 2, thereby securing the inverter module 30 to the first wall 200 of the motor housing 20 of the motor 2. This ensures that the inverter module 30 will not shake or become loose due to the operation of the motor 2.

[0059] In one embodiment, the control module 31 is removably disposed within the housing space 304 of the main body 300 of the inverter module 30. In some embodiments, the control module 31 may include a programmable logic controller (PLC) (not shown). The PLC may be a physical device or a circuit integrated into a board. The PLC may determine the output frequency of the inverter 3 based on at least one set of operating parameters or operational parameters, thereby indirectly controlling the operation of the motor 2 through the inverter 3. The size of the outer cover 32 corresponds to the size of the housing opening of the housing space 304 and may be slightly larger than the housing opening. The outer cover 32 is used to cover and seal the housing space 304. When the control module 31 is disposed within the housing space 304 of the main body 300 of the inverter module 30, the outer cover 32 can seal the housing space 304, protecting the inverter module 30 and the circuit boards and circuit components within the control module 31 from foreign objects such as water and dust.

[0060] See also Figure 4A 、 Figure 4B and Figure 4C and cooperate with Figures 1 to 3 When the inverter 3 is to be installed on the motor housing 20 of the motor 2, first, Figure 4A As shown, the first locking hole 302, the third locking hole 301a and the housing locking hole 21 are aligned and matched with the first screw 4, and the second locking hole 303 is matched with the second screw to lock the inverter module 30 of the inverter 3 to the first wall 200 of the motor housing 20 of the motor 2. Figure 4B As shown, for example, the control module 31 can be set in the accommodation space 304 of the main body 300 of the inverter module 30 by fastening screws (not shown) to complete the fixing of the control module 31. Figure 4CAs shown, the outer cover 32 covers the accommodating space 304 and can also be locked on the body 300, so that the control module 31 is fixed in the sealed accommodating space 304 of the body 300 of the inverter module 30, protecting the inverter module 30 and the control module 31 from damage by foreign objects and external forces.

[0061] On the contrary, when you want to remove the inverter 3 from the motor 2, you should reverse the above steps. First, Figure 4B As shown, the outer cover 32 is removed from the body 300, so that the outer cover 32 is separated from the opening of the accommodating space 304 to expose the inverter module 30 and the control module 31. Figure 4A As shown, the control module 31 can be removed from the inverter module 30 and out of the accommodating space 304. This method makes it easy to install and remove the control module 31 from the inverter module 30, which is convenient for repairing or replacing the control module 31. On the other hand, because the inverter module 30 contains the heating element 301 and other components, when repair is required, the second screw (not shown) can be removed from the second locking hole 303, and the first screw 4 that cooperates with the first locking hole 302, the third locking hole 301a and the housing locking hole 21 can be removed, so that the main body 300 is removed from the first wall 200 of the motor housing 20, thereby allowing the inverter module 30 to be removed from the first wall 200 of the motor housing 20, and the heating element 301 and other components can be replaced or repaired.

[0062] Please refer to Figure 3 Since the control module 31 of the present invention is detachably disposed in the accommodating space 304 of the main body 300 of the inverter module 30, when the heating element 301 is to be locked to the first wall 200 of the motor housing 20 of the motor 2, the control module 31 can be first removed from the inverter module 30 and out of the accommodating space 304. The fixing tool 9 (such as a screwdriver) can then be placed in the accommodating space 304 to lock the first screw 4 with the first locking hole 302, the third locking hole 301a, and the housing locking hole 21. This can help shorten the locking point distance from the heating element 301 to the motor housing 20 of the motor 2. Shortening the locking point distance helps control the operating accuracy of the fixing tool 9. On the other hand, if the control module is designed to be non-detachable as in the prior art, the locking point distance must extend throughout the entire height of the inverter module (because it covers the height of the control module). This not only affects the operational accuracy of the fixing tool, but also affects the size of the control module's circuit board due to the need to retain the necessary space for the locking point distance. Therefore, the assembly structure of this case is of substantial benefit in reducing the locking point distance and improving operational accuracy.

[0063] In the application of the motor all-in-one 1, the user will connect peripheral instruments and equipment, such as an emergency stop switch, compressor temperature information, motor temperature information, a human-machine display interface, a user communication device, etc., to the inverter 3, using this information to help the inverter 3 make operational decisions. These peripheral instruments and equipment actually need to be configured in the control module 31 to provide operating information or signals. Since the control module 31 of this embodiment is detachable, the user can carry the control module 31 to the vicinity of the peripheral instruments and equipment, making it easier to connect the lines between the peripheral instruments and equipment and the control module 31. After the peripheral instruments and equipment are wired to the control module 31, the control module 31 can be installed back into the inverter module 30 to complete the system assembly. Compared with the existing technology that requires wiring the entire machine and peripheral instruments after the all-in-one machine is assembled, which is very inconvenient, the motor all-in-one 1 of this embodiment can more conveniently and simply complete the information exchange between the peripheral instruments and equipment and the inverter 3.

[0064] See also Figure 5A 、 Figure 5B and Figure 5C , and cooperate with Figure 1 In some embodiments, the motor-integrated machine 1 further includes a wiring component 5 and at least one set of power lines 6 therewith. The wiring component 5 is fixed to the first wall 200 of the motor housing 20 and can provide a power line (not shown) for electrical connection with the motor 2 and the inverter 3.

[0065] The power line 6 includes an L-shaped terminal 60 and a cable 61. The L-shaped terminal 60 includes a first terminal 62 and a second terminal 63. The first terminal 62 and the second terminal 63 are substantially perpendicular to each other, forming an L-shaped structure. The first terminal 62 and the second terminal 63 are connected at their first ends. Furthermore, the first terminal 62 is disposed on the wiring component 5 and is electrically connected to the wiring component 5. The first terminal 62 is located on the first wall 200 of the motor housing 20. Furthermore, the first terminal 62 includes a fourth locking hole 64. In some embodiments, the first terminal 62 protrudes from the first wall 200 of the motor housing 20, making wiring assembly easier.

[0066] The second terminal 63 is disposed on the second wall 201 of the motor housing 20, wherein the second wall 201 is adjacent to the first wall 200 in a substantially perpendicular manner, and the second end of the second terminal 63 is connected to the cable 61. In addition, the second terminal 63 further includes a fifth locking hole 65, which is provided for the third screw 7 to lock the second terminal 63 to the second wall 201. In one embodiment, the second wall 201 is, for example, located axially of the motor shaft, i.e., the second wall 201 is parallel to the motor shaft and substantially perpendicular to the first wall 200.

[0067] In addition, the inverter module 30 further includes at least one sixth locking hole 305 (eg Figure 2 As shown, the sixth locking hole 305 is formed on the main body 300 and is arranged at a position corresponding to the fourth locking hole 64. When the inverter module 30 is locked and attached to the first side wall 200 of the motor housing 20 of the motor 2, the fourth locking hole 64 is aligned with the sixth locking hole 305 and can be locked by the fourth screw 8, so that the first terminal 62 is locked on the wiring component 5. Therefore, the inverter module 30 can use the wiring component 5 to transmit the electrical energy required by the power line 6. By directly connecting the inverter module 30 with the first terminal 62 of the L-shaped terminal 60 on the wiring component 5, the inverter module 30 can be combined with the power line 6 that provides power to the motor 2. That is, the power line 6 is electrically connected between the inverter module 30 and the motor 2. In this way, the step of pulling the motor power line to the output terminal of the inverter and fixing it can be eliminated, which further simplifies the assembly steps, shortens the working time and improves the yield rate.

[0068] In summary, the present invention provides a motor-in-one machine. When the inverter module of the inverter of the motor-in-one machine is attached to the side wall of the motor housing, a first screw is used to penetrate the first locking hole, the third locking hole, and the housing locking hole and lock the motor, so that the heating element is directly locked and attached to the side wall of the motor housing of the motor. In this way, the heat energy generated by the heating element can be dissipated by the heat dissipation mechanism of the motor, that is, the inverter and the motor share the heat dissipation mechanism of the motor, so that the heat dissipation efficiency of the motor-in-one machine is improved, and both the volume and cost can be reduced. In addition, because the control module of the inverter of the motor-in-one machine of the present invention is detachably arranged in the accommodation space of the inverter module body, this can help shorten the locking point distance from the heating element to the motor housing, thereby improving the operational accuracy of the control fixing tool.

Claims

1. A motor-integrated machine, characterized in that: Include: a motor; A frequency converter is disposed on a motor housing of the motor and comprises: An inverter module comprises a body, at least one heating element, at least one first locking hole, and at least one second locking hole, wherein the body is attached to the motor housing and further comprises an accommodating space, the at least one heating element comprises at least one third locking hole, the first locking hole being formed on the body and correspondingly arranged with the third locking hole, a first screw being passed through and locked in the first and third locking holes to secure the heating element to the motor housing, and the second locking hole being formed on the body and a second screw being passed through and locked to secure the inverter module to the motor housing; a control module, detachably disposed in the accommodating space; and an outer cover for covering the accommodating space; a wiring component fixedly mounted on the motor housing; and At least one set of power lines cooperates with the wiring component to connect the motor and the inverter.

2. The motor-integrated machine according to claim 1, wherein: The frequency converter is arranged on a first wall surface of the motor housing along a radial direction of the motor.

3. The motor-integrated machine according to claim 2, wherein: The first wall surface further comprises at least one housing locking hole corresponding to the third locking hole for the first screw to pass through.

4. The motor-integrated machine according to claim 2, wherein: The at least one group of power lines includes an L-shaped terminal. The L-shaped terminal includes a first terminal disposed on the wiring component and connected to the wiring component. The first terminal is located on the first wall surface.

5. The motor-integrated machine according to claim 4, characterized in that: The first terminal protrudes from the first wall.

6. The motor-integrated machine according to claim 4, wherein: The L-shaped terminal includes a second terminal, which is perpendicular to the first terminal and presents an L-shaped structure. The second terminal is arranged on a second wall of the motor housing, wherein the second wall is adjacent to the first wall in a vertical manner, and a first end of the second terminal is connected to the first terminal, and a second end of the second terminal is connected to a cable conductor.

7. The motor-integrated machine according to claim 6, wherein: The first terminal further includes a fourth locking hole, the second terminal further includes a fifth locking hole, and the inverter module further includes at least one sixth locking hole formed on the main body and arranged at a position corresponding to the fourth locking hole, wherein the fifth locking hole is used for locking with a third screw to lock the second terminal to the second wall surface.

8. The motor-integrated machine according to claim 7, wherein: When the inverter module is locked and attached to a first wall surface of the motor housing, the fourth locking hole and the sixth locking hole are used for locking by a fourth screw, so that the first terminal is locked on the wiring component.

9. The motor-integrated machine according to claim 3, wherein: A fixing tool is also provided in the accommodating space to lock the first screw with the first locking hole, the third locking hole and the housing locking hole, so as to shorten the distance from the heating element to a locking point of the motor housing.

10. The motor-integrated machine according to claim 1, wherein: The control module is first connected to the peripheral instruments and equipment, and then assembled back into the inverter module.

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