Heating assembly and hot jacket device for an electric machine housing

Abstract

The application relates to the technical field of motor production, in particular to a heating assembly of a motor shell and a hot-jacket device. The heating assembly of the motor shell comprises a liftable bearing seat, a locking assembly and a coil assembly used for heating the motor shell. The coil assembly comprises a fixed plate in butt joint with the bearing seat. The locking assembly comprises a first locking piece mounted on the fixed plate and a second locking piece arranged on the bearing seat. The first locking piece comprises a locking rod provided with a locking groove and an operation knob connected with the locking rod. The second locking piece comprises a channel used for containing the locking rod and a locking bead fixed to the inner wall surface of the channel. The locking bead is used for being clamped in the locking groove after sliding in the locking groove when the locking rod is screwed into the channel to realize locking, and the locking bead is separated after sliding in the locking groove when the locking rod is screwed out of the channel to realize unlocking. Through the design of the locking assembly, the coil assembly and the bearing seat can be quickly locked and unlocked, the time for installing and dismounting the coil assembly is significantly reduced, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the field of motor manufacturing technology, and in particular to a heating assembly and heat jacket device for a motor housing. Background Technology

[0002] In the field of motor manufacturing, a heat-shrinking device is a piece of equipment used to accurately install the stator or rotor of a motor into the motor housing. The heat-shrinking device primarily utilizes the physical principle of thermal expansion and contraction to achieve a high-precision interference fit. The heating component of the motor housing is the core part of the heat-shrinking device that enables its heating function. Depending on different production conditions, it is sometimes necessary to replace the heating component in the heat-shrinking device for different types of motor housings; that is, by changing the type of heat-shrinking device, the manufacturing requirements of different types of motor housings can be met.

[0003] In related technologies, the operation of replacing the coil assembly in the heating assembly of the motor housing is relatively cumbersome, which affects the changeover efficiency of the heat-shrinking device. Utility Model Content

[0004] Therefore, it is necessary to provide a heating assembly and heat jacket device for a motor housing that facilitates rapid model changeover, addressing at least one of the aforementioned technical problems.

[0005] In a first aspect, embodiments of this application provide a heating assembly for a motor housing, the heating assembly for the motor housing including a liftable support, a locking assembly, and a coil assembly for heating the motor housing.

[0006] The coil assembly includes a mounting plate that abuts against a carrier. The locking assembly includes a first locking member mounted on the mounting plate and a second locking member disposed on the carrier.

[0007] The first locking element includes a locking bar with a locking groove and an operating knob connected to the locking bar. The second locking element includes a channel for receiving the locking bar and a locking ball fixed to the inner wall of the channel. The locking ball is used to lock by sliding within the locking groove when the locking bar is screwed into the channel, and to unlock by sliding out of the locking groove when the locking bar is screwed out of the channel.

[0008] In some embodiments, the carrier is further provided with a positioning pin, and the fixing plate is provided with a positioning hole corresponding to the positioning pin. The coil assembly is positioned with the carrier through the cooperation of the positioning pin and the positioning hole.

[0009] In some embodiments, the first locking element further includes a first mounting block mounted on the side of the fixing plate away from the support seat and a plurality of first screws for fixing the first mounting block to the fixing plate. A locking rod passes through the first mounting block. The plurality of first screws are evenly distributed circumferentially along the first mounting block.

[0010] In some embodiments, the second locking member further includes a second mounting block with a channel and a plurality of second screws for fixing the second mounting block to the side of the support near the fixing plate. The plurality of second screws are evenly distributed along the circumference of the second mounting block.

[0011] In some embodiments, there are two locking components and two locating pins. The lines connecting the two locking components and the two locating pins form a quadrilateral. The two locking components are located at the first set of opposite corners of the quadrilateral, and the two locating pins are located at the second set of opposite corners of the quadrilateral.

[0012] In some embodiments, the quadrilateral is a rectangle.

[0013] In some embodiments, the coil assembly further includes a hollow coil fixed to a mounting plate and a first conduit and a second conduit respectively connected to the coil. The first conduit, the coil, and the second conduit are connected in sequence to form a flow path for the coolant.

[0014] In some embodiments, the first conduit includes a first bend and a second bend connected to each other. The first bend and the second bend have the same curvature but opposite bend directions. The second conduit includes a third bend and a fourth bend connected to each other. The third bend and the fourth bend have the same curvature but opposite bend directions.

[0015] In some embodiments, the coil assembly further includes two first straight connectors and two first bent connectors. The coil also includes a first connecting segment and a second connecting segment. The first bent segment is connected to the first connecting segment via a first straight connector. The third bent segment is connected to the second connecting segment via a first straight connector. A first bent connector is installed at the end of the second bent segment away from the first bent segment. A first bent connector is installed at the end of the fourth bent segment away from the third bent segment.

[0016] In a second aspect, embodiments of this application provide a heat-shrinking device, which includes a heating assembly for a motor housing. The heating assembly for the motor housing includes a liftable support, a locking assembly, and a coil assembly for heating the motor housing.

[0017] The coil assembly includes a fixed plate that abuts against a support. The locking assembly includes a first locking member mounted on the fixed plate and a second locking member mounted on the support. The first locking member includes a locking rod with a locking groove and an operating knob connected to the locking rod. The second locking member includes a channel for receiving the locking rod and a locking ball fixed to the inner wall of the channel. The locking ball is used to lock by sliding within the locking groove when the locking rod is screwed into the channel, and to unlock by sliding out of the locking groove when the locking rod is screwed out of the channel. The coil assembly also includes a hollow coil fixed to the fixed plate and a first pipe and a second pipe connected to the coil respectively. The first pipe, the coil, and the second pipe are sequentially connected to form a coolant flow path. The first pipe includes a first curved section and a second curved section connected together. The first curved section and the second curved section have the same curvature but opposite bending directions. The second pipe includes a third curved section and a fourth curved section connected together. The third curved section and the fourth curved section have the same curvature but opposite bending directions. The coil assembly also includes two first straight connectors and two first bent connectors. The coil also includes a first connecting section and a second connecting section. The first curved section is connected to the first connecting section via a first straight connector. The third curved section is connected to the second connecting section via a first straight connector. A first bent connector is installed at the end of the second curved section away from the first curved section. A first bent connector is installed at the end of the fourth curved section away from the third curved section.

[0018] The heat fitting device also includes a first quick connector and a second quick connector, which are respectively connected to two first bent-type connectors. Both the first and second quick connectors are equipped with valves. When the first bent-type connector is connected to either the first or second quick connector, the first bent-type connector abuts against the valve, thus opening the valve. When the first bent-type connector is disconnected from either the first or second quick connector, the valve returns to its original closed position.

[0019] The heating assembly and heat-shrink device for the motor housing provided in this application embodiment have a locking assembly consisting of a first locking member and a second locking member. The first locking member is mounted on a fixed plate, and the second locking member is mounted on a support base. The fixed plate and the support base are fixedly connected when the first and second locking members are locked together, and separated when they are unlocked. When the operator rotates the locking rod using the operating knob of the first locking member, causing the locking rod to enter the channel of the second locking member, the locking ball on the inner wall of the channel of the second locking member enters the locking groove of the locking rod of the first locking member and slides, finally locking the first and second locking members together. When the operator rotates the locking rod in the opposite direction using the operating knob of the first locking member, the locking ball slides out from the locked position along the locking groove and finally disengages from the locking groove, thus unlocking and separating the first and second locking members. This locking and unlocking method facilitates rapid locking and unlocking of the coil assembly and the support base, significantly reducing the time spent installing and disassembling the coil assembly and effectively improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the heating assembly of the motor housing in some embodiments; Figure 2 These are schematic diagrams of the coil assembly and locking assembly in some embodiments; Figure 3 This is an exploded view of the locking assembly in some embodiments; Figure 4 This is a schematic diagram of the structure of the heat-shrink device in some embodiments.

[0021] Explanation of reference numerals in the attached drawings: 100-Bearing seat; 110-Positioning pin; 200-Locking assembly; 210-First locking element; 211-Locking rod; 212-Locking groove; 213-Operating knob; 214-First mounting block; 215-First screw; 220-Second locking element; 221-Channel; 222-Second mounting block; 223-Second screw; 300-Coil assembly; 310-Fixing plate; 311-Positioning hole; 320-Coil; 321-First connecting section; 322-Second connecting section; 330-The... Pipeline 1; 331-First bend section; 332-Second bend section; 340-Second pipe; 341-Third bend section; 342-Fourth bend section; 350-First straight connector; 360-First bent connector; 400-First quick connector; 500-Second quick connector; 600-Base; 601-Guide rail; 602-Third pipe; 603-Fourth pipe; 604-Fifth pipe; 605-Sixth pipe; 606-Copper busbar; 607-Second straight connector; 608-Second bent connector. Detailed Implementation

[0022] To make the technical solutions and advantages of this application clearer, the embodiments and related technical content of this application will be further described in detail below with reference to the accompanying drawings and text description. It should be understood that the embodiments described below are only used to explain the technical solutions of the embodiments of this application and are not intended to limit more possible implementations of this application.

[0023] It should be noted that relational terms such as "first" and "second" appearing in this document are used only to distinguish things, states, or actions, and do not necessarily indicate or imply relative importance or order. The terms "including," "comprising," or any other variations thereof are used to indicate non-exclusive inclusion, and the included objects may not be limited to those listed in this document. The terms "multiple" or other variations are used to indicate that the number of objects is two or more.

[0024] In a first aspect, embodiments of this application provide a heating assembly for a motor housing, which can be used in the assembly process of rotor and shaft, bearing and shaft, bearing and end cover, and stator and motor housing during motor production, and is particularly suitable for the assembly process of stator and motor housing.

[0025] like Figures 1 to 3 As shown, the heating assembly for the motor housing provided in the embodiments of this application mainly includes a liftable support 100, a locking assembly 200, and a coil assembly 300 for heating the motor housing.

[0026] The coil assembly 300 includes a mounting plate 310 that docks with the support 100.

[0027] The locking assembly 200 includes a first locking member 210 mounted on the fixed plate 310 and a second locking member 220 disposed on the support 100.

[0028] The first locking element 210 includes a locking rod 211 with a locking groove 212 and an operating knob 213 connected to the locking rod 211. The second locking element 220 includes a channel 221 for receiving the locking rod 211 and a locking ball fixed to the inner wall of the channel 221. The locking ball is used to lock the locking element by sliding it in the locking groove 212 when the locking rod 211 is screwed into the channel 221, and to unlock the locking element by sliding it in the locking groove 212 when the locking rod 211 is screwed out of the channel 221.

[0029] The coil assembly 300 can be the core component for realizing the heating function. By passing an alternating current into the coil assembly 300, an alternating magnetic field is generated, causing the motor housing to generate heat and thermal expansion, thus providing conditions for subsequent interference fit assembly.

[0030] The support base 100 can be a basic support component in the heating assembly of the motor housing. It is usually made of metal materials (such as stainless steel or aluminum alloy) and has the function of moving up and down in the vertical direction. Its lifting action can be realized by a cylinder, lead screw, or hydraulic drive mechanism. The support base 100 is mainly used to support the coil assembly 300 and adjust the relative position of the coil assembly 300 and the motor housing on the production line by lifting and lowering it, so as to facilitate the heating of the motor housing by the coil assembly 300.

[0031] The fixing plate 310 is a key component for docking the coil assembly 300 with the carrier 100. It is usually a flat plate, but it can also be other shapes, which are not particularly limited here. By fixing and disassembling the fixing plate 310 with the carrier 100, the fixing and disassembly of the coil assembly 300 and the carrier 100 can be realized.

[0032] The locking assembly 200 is the core structure for quickly connecting and separating the coil assembly 300 and the carrier 100. It securely locks the fixing plate 310 and the carrier 100 during heating operations, preventing relative displacement from affecting heating accuracy. Furthermore, the locking assembly 200 can be quickly unlocked when a change of type is required, facilitating timely replacement of the coil assembly 300. The number of locking assemblies 200 can be determined based on actual needs and is not specifically limited here.

[0033] The first locking member 210 may be the portion of the locking assembly 200 fixed to the fixing plate 310. Optionally, the locking rod 211 in the first locking member 210 may be a cylindrical metal rod. The surface of the locking rod 211 may be provided with a groove-shaped locking slot 212. Understandably, the specific shape of the locking slot 212 can be determined according to actual needs and is not particularly limited here. The shape of the locking slot 212 may match the locking ball, so that relative movement can occur between the locking ball and the locking slot 212. The operating knob 213 may be a component connected to the locking rod 211 to control the rotation of the locking rod 211. The operating knob 213 may be fixed to the end of the locking rod 211 away from the support seat 100, so that the operator can rotate it to drive the locking rod 211 into or out of the channel 221 in the second locking member 220. Optionally, the operating knob 213 may be rugby ball shaped, or of course, other shapes, and is not particularly limited here. Optionally, the operating knob 213 may be integrally formed with the locking rod 211. The surface of the operating knob 213 may be provided with anti-slip texture to improve ease of operation.

[0034] The second locking element 220 may be the portion of the locking assembly 200 located on the support base 100. Optionally, the channel 221 may be a cylindrical hole, the inner diameter, depth, and other parameters of which may be designed according to the dimensions of the locking rod 211. The diameter of the channel 221 may be slightly larger than the diameter of the locking rod 211 to facilitate smooth insertion of the locking rod 211 into the channel 221. The locking ball may be a sphere or a partial sphere embedded in the inner wall of the channel 221; optionally, the locking ball may be made of metal. Understandably, the number of locking balls and locking grooves 212 corresponds, and the number of both can be determined according to the actual situation.

[0035] Understandably, when the operator inserts the locking lever 211 into the channel 221 and rotates the operating knob 213 in the first direction, the locking ball can slide along the locking groove 212 and eventually engage in the preset position of the locking groove 212, thereby locking the fixing plate 310 and the support seat 100. When the operator rotates the operating knob 213 in the second direction opposite to the first direction, the locking lever 211 rotates in the opposite direction, and the locking ball can slide out along the locking groove 212 to break free from the constraint of the locking groove 212, thereby unlocking the fixing plate 310 and the support seat 100.

[0036] The design of the locking component 200 facilitates the quick locking and unlocking of the coil assembly 300 and the carrier 100, significantly reducing the time required to install and remove the coil assembly 300 and effectively improving production efficiency.

[0037] In some embodiments, such as Figure 1 As shown, the support base 100 is also provided with a positioning pin 110, and the fixing plate 310 is provided with a positioning hole 311 corresponding to the positioning pin 110. The coil assembly 300 is positioned with the support base 100 through the cooperation of the positioning pin 110 and the positioning hole 311.

[0038] The positioning pin 110 can be a columnar component disposed on the side of the bearing seat 100 facing the fixing plate 310, and is usually made of high-strength metal. In some specific embodiments, the positioning pin 110 can be cylindrical. The number of positioning pins 110 can be set according to the size and weight of the coil assembly 300, and is generally 2 to 4, which helps to avoid alignment misalignment caused by single-point positioning.

[0039] The positioning hole 311 can be a hole-like structure formed on the fixing plate 310 that matches the positioning pin 110. The position of the positioning hole 311 can correspond one-to-one with the positioning pin 110 on the bearing seat 100. Optionally, the positioning hole 311 can be cylindrical.

[0040] The locating pin 110 and the locating hole 311 work together to provide a quick alignment function for the assembly of the fixing plate 310 and the bearing seat 100, which helps to improve the efficiency of operators when replacing the coil assembly 300.

[0041] In some embodiments, such as Figure 3 As shown, the first locking member 210 also includes a first mounting block 214 mounted on the side of the fixing plate 310 away from the support seat 100 and a plurality of first screws 215 fixing the first mounting block 214 to the fixing plate 310. The locking rod 211 passes through the first mounting block 214. The plurality of first screws 215 are evenly distributed along the circumference of the first mounting block 214.

[0042] The first mounting block 214 can be a block-shaped structure for fixing the locking rod 211, usually made of metal, and its shape can be designed as square, round, or hexagonal, etc., depending on the size of the fixing plate 310. In some specific embodiments, the first mounting block 214 can be round. The thickness of the first mounting block 214 can be determined according to the length of the locking rod 211, and the locking rod 211 can pass through the first mounting block 214 and extend into the channel 221 of the second locking member 220. The first mounting block 214 is located on the side of the fixing plate 310 away from the support seat 100, and its main function is to provide a mounting base for the locking rod 211. In some specific embodiments, the locking rod 211 can pass through the center of the first mounting block 214 and be rotatably assembled with the first mounting block 214.

[0043] The first screw 215 can be a fastener that securely connects the first mounting block 214 to the fixing plate 310. The specifications of the first screw 215 can be selected according to the size and weight of the first mounting block 214. The number of first screws 215 can be determined according to actual needs, generally multiple, and in some specific embodiments, the number of first screws 215 can be three. Multiple first screws 215 can be evenly distributed around the edge of the first mounting block 214. This distribution method can ensure that the connection points between the first mounting block 214 and the fixing plate 310 are evenly distributed, which helps to avoid the first mounting block 214 from loosening due to uneven distribution of the first screws 215.

[0044] The first mounting block 214 provides an independent and stable mounting carrier for the locking rod 211. The design of multiple first screws 215 evenly distributed around the first mounting block 214 in the circumference helps to make the connection between the first mounting block 214 and the fixing plate 310 more secure and stable.

[0045] In some embodiments, such as Figure 3 As shown, the second locking member 220 also includes a second mounting block 222 with a channel 221 and a plurality of second screws 223 for fixing the second mounting block 222 to the side of the support 100 near the fixing plate 310. The plurality of second screws 223 are evenly distributed along the circumference of the second mounting block 222.

[0046] The second mounting block 222 can be made of a high-hardness metal material, and its structural shape can be determined according to actual needs. The channel 221 in the second locking member 220 can be located at the center of the second mounting block 222.

[0047] The second screw 223 can be a fastener used to fix the second mounting block 222 to the side of the support 100 near the fixing plate 310. The specifications of the second screw 223 can be selected according to the size and weight of the second mounting block 222. The number of second screws 223 can be determined according to actual needs, generally multiple, and in some specific embodiments, the number of second screws 223 can be three. Multiple second screws 223 can be evenly distributed around the edge of the second mounting block 222. This distribution can make the connection force between the second mounting block 222 and the support 100 evenly distributed, which helps to prevent the second mounting block 222 from loosening due to uneven force, and thus helps to ensure that the axis of the channel 221 and the axis of the locking rod 211 remain coaxial.

[0048] In some embodiments, such as Figure 1 As shown, there are two locking components 200 and two positioning pins 110. The lines connecting the two locking components 200 and the two positioning pins 110 form a quadrilateral.

[0049] Two locking components 200 are located at the first set of opposite corners of the quadrilateral, and two locating pins 110 are located at the second set of opposite corners of the quadrilateral.

[0050] In some specific embodiments, the heating assembly of the motor housing may include two independent sets of first locking members 210 and second locking members 220. The two sets of locking assemblies 200 may have the same structure and be respectively set at different positions on the support 100 and the fixing plate 310, so as to jointly realize the locking and unlocking of the coil assembly 300 and the support 100.

[0051] In some specific embodiments, two positioning pins 110 may be provided on the support 100. Two positioning holes 311 may be provided on the fixing plate 310. The structural parameters (such as diameter and length) of the two positioning pins 110 may be the same to ensure consistent positioning.

[0052] Connecting two locking components 200 and two locating pins 110 sequentially with straight lines forms a closed quadrilateral, which can be rectangular, rhomboid, or similar in shape. The first and second sets of opposite angles are two pairs of opposite angles within the quadrilateral. The two locking components 200 can be located at the first set of opposite angles, and the two locating pins 110 can be located at the second set of opposite angles. This layout ensures that the locking components 200 and locating pins 110 are evenly distributed at the connection between the bearing seat 100 and the fixing plate 310, forming a stable connection structure.

[0053] In some specific implementations, such as Figure 1 As shown, the quadrilateral is a rectangle to optimize the spatial layout of the locking assembly 200 and the locating pin 110, providing greater symmetry and stability.

[0054] In some embodiments, such as Figure 1 and Figure 2 As shown, the coil assembly 300 also includes a hollow coil 320 fixed on the fixing plate 310, and a first pipe 330 and a second pipe 340 respectively connected to the coil 320. The first pipe 330, the coil 320 and the second pipe 340 are connected in sequence to form a flow path for the coolant.

[0055] Coil 320 is the core component of coil assembly 300 that enables heating. It can be made of copper tubing or other conductive metal materials. The interior of coil 320 is hollow to accommodate coolant. The winding method of coil 320 can be determined according to actual needs, typically in a spiral shape, which helps ensure that the magnetic field generated by coil 320 uniformly covers the area to be heated on the motor housing. Coil 320 can be fixed to mounting plate 310 using an insulating bracket, which can be made of high-temperature resistant insulating material.

[0056] The first pipe 330 and the second pipe 340 can be inlet and outlet pipes connecting the coil 320, and are typically made of flexible or rigid materials. The first end of the first pipe 330 can be connected to a coolant supply device, and the second end can be connected to the first end of the coil 320. The first end of the second pipe 340 can be connected to the second end of the coil 320, and the second end of the second pipe 340 can be connected to a coolant recovery device, thereby forming a connected coolant flow path between the first pipe 330, the coil 320, and the second pipe 340.

[0057] As the coolant flows through the coil 320, it can absorb the excess heat generated by the coil 320 during operation, which is beneficial for cooling the coil 320.

[0058] In some embodiments, such as Figure 2 As shown, the first pipe 330 includes a first curved section 331 and a second curved section 332 connected to each other. The first curved section 331 and the second curved section 332 have the same curvature but opposite bending directions. The second pipe 340 includes a third curved section 341 and a fourth curved section 342 connected to each other. The third curved section 341 and the fourth curved section 342 have the same curvature but opposite bending directions.

[0059] In some specific embodiments, the first bending segment 331 and the second bending segment 332 can be integrally formed, as can the third bending segment 341 and the fourth bending segment 342. The first bending segment 331 and the second bending segment 332 have the same curvature but opposite bending directions, and the third bending segment 341 and the fourth bending segment 342 have the same curvature but opposite bending directions, so that the first pipe 330 and the second pipe 340 form an S-shaped structure. This improves the spatial adaptability of the first pipe 330 and the second pipe 340, while also helping to avoid pressure loss caused by sharp bends.

[0060] In some embodiments, such as Figure 2 As shown, the coil assembly 300 also includes two first straight connectors 350 and two first bent connectors 360. The coil 320 also includes a first connecting section 321 and a second connecting section 322. A first bent section 331 is connected to the first connecting section 321 via a first straight connector 350. A third bent section 341 is connected to the second connecting section 322 via a first straight connector 350. A first bent connector 360 is installed at the end of the second bent section 332 away from the first bent section 331. A first bent connector 360 is installed at the end of the fourth bent section 342 away from the third bent section 341.

[0061] Both the first straight connector 350 and the first bent connector 360 can be connecting parts; optionally, both can be made of metal (such as brass or stainless steel). The first straight connector 350 and the first bent connector 360 may have internal sealing gaskets to improve the sealing performance of the connection.

[0062] The axes of the two ends of the first straight connector 350 can be on the same straight line to facilitate a straight connection between pipes. The axes of the two ends of the first bent connector 360 can be at a certain angle (usually 90°, but other angles can be selected according to installation requirements) to facilitate the connection of pipes in different directions.

[0063] The first connecting section 321 and the second connecting section 322 can be the parts at both ends of the coil 320 for connecting to the first pipe 330 and the second pipe 340. The diameter of both can be matched with the diameter of the first straight connector 350 so as to facilitate a tight connection with the first straight connector 350.

[0064] By installing a first bent connector 360 at the end of the second bent segment 332 away from the first bent segment 331, and another first bent connector 360 at the end of the fourth bent segment 342 away from the third bent segment 341, the direction of connection can be reversed.

[0065] In the second aspect, such as Figure 4As shown, an embodiment of this application provides a heat-shrinking device, which includes a liftable support base 100, a locking assembly 200, and a coil assembly 300 for heating a motor housing. The coil assembly 300 includes a fixing plate 310 that abuts against the support base 100. The locking assembly 200 includes a first locking member 210 mounted on the fixing plate 310 and a second locking member 220 disposed on the support base 100. The first locking member 210 includes a locking rod 211 with a locking groove 212 and an operating knob 213 connected to the locking rod 211. The second locking member 220 includes a channel 221 for receiving the locking rod 211 and a locking bead fixed to the inner wall of the channel 221. The locking bead is used to lock the locking rod 211 by sliding it in the locking groove 212 when it is screwed into the channel 221, and to unlock the locking rod 211 by sliding it out of the channel 221. The coil assembly 300 also includes a hollow coil 320 fixed to a mounting plate 310, and a first conduit 330 and a second conduit 340 respectively connected to the coil 320. The first conduit 330, the coil 320, and the second conduit 340 are sequentially connected to form a flow path for the coolant. The first conduit 330 includes a first bent section 331 and a second bent section 332 connected to each other. The first bent section 331 and the second bent section 332 have the same curvature but opposite bending directions. The second conduit 340 includes a third bent section 341 and a fourth bent section 342 connected to each other. The third bent section 341 and the fourth bent section 342 have the same curvature but opposite bending directions. The coil assembly 300 also includes two first straight connectors 350 and two first bent connectors 360. The coil 320 also includes a first connecting section 321 and a second connecting section 322. The first bent section 331 is connected to the first connecting section 321 through a first straight connector 350. The third bent section 341 is connected to the second connecting section 322 through a first straight connector 350. A first bend joint 360 is installed at the end of the second bend section 332 away from the first bend section 331. A first bend joint 360 is installed at the end of the fourth bend section 342 away from the third bend section 341.

[0066] like Figure 4 As shown, the heat-shrinking device also includes a first quick connector 400 and a second quick connector 500, which are respectively connected to the two first bent connectors 360. Both the first quick connector 400 and the second quick connector 500 have valves inside. When the first bent connector 360 is connected to either the first quick connector 400 or the second quick connector 500, the first bent connector 360 abuts against the valve, causing the valve to be in the open state. When the first bent connector 360 is disconnected from either the first quick connector 400 or the second quick connector 500, the valve resets and closes.

[0067] The first quick connector 400 and the second quick connector 500 can be pipe connectors, and the first quick connector 400 and the second quick connector 500 can be used to quickly connect with two first bent connectors 360 in the heating assembly of the motor housing.

[0068] In some specific embodiments, the valves internally installed in the first quick connector 400 and the second quick connector 500 can be spring-loaded one-way valves, consisting of a valve core, a return spring, and a sealing gasket. The valve core can be made of wear-resistant rubber, and the return spring can be made of stainless steel. When the first bent connector 360 is inserted into the first quick connector 400 or the second quick connector 500, the end of the first bent connector 360 abuts against the valve core to overcome the elastic force of the return spring and push the valve core to move, causing the valve core to separate from the sealing gasket. At this time, the valve opens, and coolant can flow inside the first quick connector 400 and the second quick connector 500. When the first bent connector 360 is pulled out from the first quick connector 400 or the second quick connector 500, the valve core loses its abutment force, the return spring returns to its original deformation, and pushes the valve core back to its original position. The valve core and the sealing gasket fit tightly together to close the valve, which helps to ensure that coolant does not leak from the first quick connector 400 and the second quick connector 500 when the connection is disconnected.

[0069] In some specific implementations, such as Figure 4 As shown, the heat fitting device may also include a base 600, a guide rail 601, a third pipe 602, a fourth pipe 603, a fifth pipe 604, a sixth pipe 605, a copper busbar 606, two second straight connectors 607 and two second bent connectors 608.

[0070] The base 600 can be fixed to the placement surface. Various components of the heat-shrinking device can be installed based on the base 600. The guide rail 601 can be vertically fixed to the base 600. The support seat 100 can be slidably assembled with the guide rail 601, allowing the support seat 100 to drive the coil assembly 300 to move vertically up and down. The structure of the second straight connector 607 can be the same as that of the first straight connector 350, and the structure of the second bent connector 608 can be the same as that of the first bent connector 360. A second bent connector 608 and a second straight connector 607 can be respectively provided at both ends of the third pipe 602 and the fourth pipe 603. One end of the third pipe 602 can be connected to the first quick connector 400 through a second bent connector 608, and the other end of the third pipe 602 can be connected to the fifth pipe 604 through a second straight connector 607. One end of the fourth pipe 603 can be connected to the second quick connector 500 via a second elbow connector 608, and the other end of the fourth pipe 603 can be connected to the sixth pipe 605 via a straight connector. The fifth pipe 604, the third pipe 602, the first quick connector 400, the first pipe 330, and the first connecting section 321 are connected in sequence to form a path for coolant to flow into the coil 320. The second connecting section 322, the second pipe 340, the second quick connector 500, the fourth pipe 603, and the sixth pipe 605 are connected in sequence to form a path for coolant to flow out of the coil 320. Both the fifth pipe 604 and the sixth pipe 605 are made of conductive metal material. The fifth pipe 604 is electrically connected to the first connecting section 321 via a copper busbar 606, and the sixth pipe 605 is electrically connected to the second connecting section 322 via a copper busbar 606, so as to energize the coil 320.

[0071] Those skilled in the art will understand that Figures 1 to 4 The structure shown is merely a schematic diagram of a portion of the structure related to the solution of this application, and does not necessarily constitute a limitation on the product form to which the technical solution of this application is applied. Specific heating components and heat-shrink devices for motor housings may have more or fewer parts than the structure shown in the figure, or may have a structure that is not exactly the same.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0073] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A heating assembly for an electric motor housing, characterized in that, include: A liftable support, a locking assembly, and a coil assembly for heating the motor housing; The coil assembly includes a fixing plate that docks with the support base; The locking assembly includes a first locking member mounted on the fixed plate and a second locking member disposed on the support base; The first locking component includes a locking rod with a locking groove and an operating knob connected to the locking rod; the second locking component includes a channel for receiving the locking rod and a locking bead fixed to the inner wall of the channel. The locking ball is used to lock by sliding in the lock groove when the locking rod is screwed into the channel, and to unlock by sliding out of the lock groove when the locking rod is screwed out of the channel.

2. The heating assembly for the motor housing according to claim 1, characterized in that, The support base is also provided with a positioning pin, and the fixing plate is provided with a positioning hole corresponding to the positioning pin; the coil assembly is positioned with the support base through the cooperation of the positioning pin and the positioning hole.

3. The heating assembly for the motor housing according to claim 1, characterized in that, The first locking component further includes a first mounting block installed on the side of the fixing plate away from the bearing seat and a plurality of first screws for fixing the first mounting block to the fixing plate; The locking rod passes through the first mounting block; The plurality of the first screws are evenly distributed along the circumference of the first mounting block.

4. The heating assembly for the motor housing according to claim 1, characterized in that, The second locking component also includes a second mounting block having the channel and a plurality of second screws for fixing the second mounting block to the side of the support near the fixing plate; Multiple second screws are evenly distributed along the circumference of the second mounting block.

5. The heating assembly for the motor housing according to claim 2, characterized in that, There are two locking components and two positioning pins; the lines connecting the two locking components and the two positioning pins form a quadrilateral. The two locking components are located at the first set of opposite corners of the quadrilateral, and the two locating pins are located at the second set of opposite corners of the quadrilateral.

6. The heating assembly for the motor housing according to claim 5, characterized in that, The quadrilateral is a rectangle.

7. The heating assembly for the motor housing according to claim 1, characterized in that, The coil assembly also includes a hollow coil fixed to the fixing plate and a first pipe and a second pipe respectively connected to the coil; The first pipe, the coil, and the second pipe are connected in sequence to form a flow path for the coolant.

8. The heating assembly for the motor housing according to claim 7, characterized in that, The first pipe includes a first curved section and a second curved section connected to each other; the first curved section and the second curved section have the same curvature and opposite bending directions; The second pipe includes a third bend and a fourth bend connected to each other; the third bend and the fourth bend have the same curvature and bend in opposite directions.

9. The heating assembly for the motor housing according to claim 8, characterized in that, The coil assembly further includes two first straight connectors and two first bent connectors; the coil also includes a first connecting section and a second connecting section; The first bent section is connected to the first connecting section via a first straight connector; The third curved section is connected to the second connecting section via a first straight connector; One of the first bent joints is installed at the end of the second bent section away from the first bent section; One of the first bend joints is installed at the end of the fourth bend segment away from the third bend segment.

10. A heat-sheltering device, characterized in that, include: The heating assembly for the motor housing as described in claim 9; A first quick connector and a second quick connector, respectively connected to the two first bent-type connectors; Both the first quick connector and the second quick connector are equipped with valves inside; when the first bent connector is connected to the first quick connector or the second quick connector, the first bent connector abuts against the valve, causing the valve to be in the open state; when the first bent connector is disconnected from the first quick connector or the second quick connector, the valve resets and closes.

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