Motor casing and linear motor with same

Abstract

The utility model discloses a motor casing and a linear motor with the same, the casing comprises a base and an upper casing, the base and the upper casing are clamped, a connecting port is formed between the upper casing and the base, the center of the base is provided with a wrapping table, the inner wall of the upper casing is provided with two connecting tables, and the two connecting tables are connected with the base. A deformation groove is formed in the position, corresponding to the connecting table, of the outer wall of the upper shell. The motor comprises a soft substrate, a coil, a mass block, a permanent magnet and an elastic piece, the soft substrate is provided with a positioning hole, the positioning hole is matched with a positioning protrusion in an inserted mode, the coil wraps a wrapping table and is electrically connected with the soft substrate, the permanent magnet is arranged on the mass block in a clamped mode, the permanent magnet is arranged close to the coil, and the elastic piece is arranged on the mass block. One end of the elastic member is connected with the connecting table, and the other end is connected with the side wall of the mass block. The integral structure is simple, the output effect of the motor is effectively improved, the structure operation is more stable, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to a motor housing and a linear motor having the housing. Background Technology

[0002] A linear motor, also known as a linear actuator or linear push rod motor, is a transmission device that directly converts electrical energy into linear motion mechanical energy without the need for an intermediate conversion mechanism. Existing linear motors typically consist of a flexible substrate and a housing. The housing houses coils and a mover assembly. The coils are connected to the flexible substrate, and by changing the direction of the current in the coils, the mover assembly is driven to reciprocate, thus achieving vibration output. However, the housing structure in existing designs is unreasonable and fails to adequately meet the requirements of linear motor operation, thus failing to achieve the required vibration output. Furthermore, the existing housing structure is not conducive to integration with the flexible substrate, affecting the reliability of the structure. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a motor housing and a linear motor having the housing. The structure is simple, effectively improves the motor's output performance, and the structure operates more stably, resulting in good performance.

[0004] To achieve the above objectives, this utility model provides a motor housing, including a base and an upper housing. The base and upper housing are snap-fitted together, and a connection port is formed between the upper housing and the base for a flexible substrate to pass through for electrical connection. A winding platform for connecting to a coil is provided at the center of the base. Two connection platforms for connecting to a mover assembly are provided on the inner wall of the upper housing, symmetrically arranged along the projection center on the base. A deformation groove is formed on the outer wall of the upper housing corresponding to the position of the connection platform, and the deformation groove is arranged along the height direction of the upper housing. Its structure is simple, effectively improves the motor's output performance, and provides more stable operation, resulting in good performance.

[0005] The beneficial effects of this setup are: by using a winding platform, it creates an effect similar to the iron core in an electromagnet, significantly enhancing the magnetic field strength. This allows the magnetic field to be more concentrated in a specific area, improving the utilization rate of the magnetic field. It also accelerates the establishment and dissipation of the electromagnet's magnetic field. Under the same magnetic field strength, it can reduce the current in the coil, thereby effectively reducing energy consumption. Furthermore, the connecting platform structure provides an accurate installation position for the elastic components of the mover assembly, ensuring quick and precise positioning during installation and preventing positional deviations. The connecting platform also increases the contact area and connection points between the housing and the elastic components, making the connection between them more robust and able to withstand greater tensile and compressive forces. During linear motor operation, the elastic components are subjected to tensile forces from the mass block and vibrations. The connecting platform distributes these forces over a larger area of ​​the housing, preventing excessive localized stress and reducing the possibility of housing deformation or damage. The connecting platform also reduces the distance between the elastic components and the mass block, limiting the deformation of the elastic components and preventing excessive deformation during operation, thus ensuring the components operate within a suitable elastic range. Simultaneously, the connecting platform acts as a vibration buffer structure, absorbing and weakening the vibration energy transmitted from the elastic components to the housing, reducing vibration propagation within the housing, and thereby reducing noise and vibration generated during linear motor operation.

[0006] As a further feature of the housing, the base is provided with a positioning protrusion for positioning the flexible substrate, and the positioning protrusion is located near the connection port.

[0007] The advantages of this design are: it makes it easier to position the flexible substrate, ensuring connection stability. With the connector, the flexible substrate can be positioned at two points, preventing it from deviating and ensuring the stability of the circuit connections on the flexible substrate. At the same time, the structure is simple, easy to process, and has good performance.

[0008] This utility model also provides a linear motor based on the motor housing, including a flexible substrate, a coil, and a mover assembly. The flexible substrate is provided with a positioning hole, which is engaged with a positioning protrusion. The coil is wound around a winding platform and electrically connected to the flexible substrate. The mover assembly includes a mass block, a permanent magnet, and an elastic element. The mass block is provided with a receiving groove, and the permanent magnet is engaged in the receiving groove. The permanent magnet is positioned close to the coil. One end of the elastic element is connected to a connecting platform, and the other end is connected to the side wall of the mass block.

[0009] The advantages of this setup are as follows: With the coil wound on the winding platform, the magnetism is effectively enhanced, resulting in better magnetic conductivity for the overall structure. It also aids in coil positioning, ensuring stability and preventing deviation during subsequent use, thus improving coil reliability. Furthermore, the elastic element connects to the connecting platform, providing a precise installation position and ensuring quick and accurate placement during installation, preventing positional errors. The connecting platform also increases the contact area and connection points between the housing and the elastic element, making the connection stronger and able to withstand greater tensile and compressive forces. During linear motor operation, the elastic element is subjected to tensile forces and vibrations from the mass block. The connecting platform can distribute these forces over a larger area of ​​the housing, avoiding excessive local stress and reducing the possibility of housing deformation or damage. The connecting platform can also reduce the distance between the elastic element and the mass block, limiting the deformation of the elastic element and preventing excessive deformation during operation, thus ensuring the elastic element operates within a suitable elastic range. Simultaneously, the connecting platform can also act as a vibration buffer structure, absorbing and weakening the vibration energy transmitted from the elastic element to the housing, reducing the propagation of vibration within the housing, thereby reducing noise and vibration generated during linear motor operation. Furthermore, the flexible substrate can achieve two-point positioning through positioning holes and connecting ports, ensuring the stability of the flexible substrate's position and preventing short circuits or open circuits caused by substrate misalignment, thus ensuring the reliability of the structure.

[0010] As a further feature of the linear motor, the permanent magnet is composed of multiple pieces, with adjacent permanent magnets having opposite magnetic pole distributions.

[0011] The beneficial effects of this arrangement are as follows: The arrangement of multiple adjacent permanent magnets with opposite magnetic poles allows for a denser distribution of the magnetic field within a given area, thus enhancing the magnetic field strength. Simultaneously, this arrangement helps reduce magnetic field distortion and inhomogeneity, making the magnetic field more uniform within the working area and improving the performance stability of the linear motor. Furthermore, the interaction between adjacent permanent magnets with opposite magnetic poles creates an interacting magnetic field, concentrating the magnetic field lines more effectively in the desired area and improving magnetic field utilization. The increased magnetic field strength and utilization directly lead to a greater driving force for the linear motor, enabling the mover to accelerate and decelerate more quickly, thus improving the linear motor's response speed.

[0012] As a further feature of the linear motor, the mass block is provided with a magnetic leakage groove at the position corresponding to the edge of the receiving groove.

[0013] The beneficial effects of this design are as follows: It guides the leakage magnetic field lines through the leakage groove, reducing the impact of leakage magnetic field on the surrounding environment and other components, improving the effective utilization rate of the magnetic field, thereby enhancing the driving force and efficiency of the linear motor. It also alters the magnetic field distribution, concentrating the magnetic field more in the required area, thus improving the performance and stability of the linear motor. Furthermore, the leakage groove design allows for the removal of some mass block material, reducing its weight. This weight reduction lowers the linear motor's inertia, improving its response speed and dynamic performance.

[0014] As a further feature of the linear motor, a damping foam is also included, which is disposed on the side of the upper housing away from the connecting platform.

[0015] The beneficial effects of this design are as follows: The damping foam, with its inherent elasticity and viscosity, provides resistance—a damping force—to the mover assembly in the opposite direction of motion. This damping force effectively controls the speed and amplitude of the mover assembly, making the linear motor's vibration smoother and more controllable. The damping foam also absorbs and dissipates some vibrational energy, reducing collisions and friction between the mover assembly and other components, thereby reducing vibration and noise. Furthermore, by appropriately setting the damping foam parameters, the linear motor can respond faster during startup and shutdown. During startup, the damping foam helps the mover assembly reach a stable vibration state more quickly; during shutdown, it helps the mover assembly stop moving more quickly, reducing residual vibration. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the motor housing in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the base in the motor housing in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the linear motor in an embodiment of the present invention;

[0019] Figure 4 This is a perspective view of the linear motor in an embodiment of this utility model. Detailed Implementation

[0020] This utility model provides an embodiment of a motor housing, such as... Figure 1 and Figure 2As shown, the device includes a base 1 and an upper housing 2. The base 1 and the upper housing 2 are snap-fitted together. A connection port is formed between the upper housing 2 and the base 1 for the flexible substrate 3 to pass through and make an electrical connection. A wrapping platform 11 for connecting to the coil 7 is provided at the center of the base 1. Two connection platforms 22 for connecting to the actuator assembly are provided on the inner wall of the upper housing 2. The two connection platforms 22 are symmetrically arranged along the projection center on the base 1. A deformation groove 21 is formed on the outer wall of the upper housing 2 corresponding to the position of the connection platform 22. The deformation groove 21 is arranged along the height direction of the upper housing 2. The beneficial effect of this configuration is that, through the wrapping platform 11, it forms an effect similar to the iron core in an electromagnet, significantly enhancing the magnetic field strength. It can concentrate the magnetic field in a specific area, improve the utilization rate of the magnetic field, and accelerate the establishment and disappearance speed of the electromagnet's magnetic field. Under the condition of generating the same magnetic field strength, the current in the coil 7 can be reduced, thereby effectively reducing energy consumption. Furthermore, the connecting platform 22 structure provides an accurate installation position for the elastic element 5 of the mover assembly, ensuring that the elastic element 5 can be quickly and accurately positioned during installation, avoiding positional deviations during installation. The connecting platform 22 also increases the contact area and connection points between the housing and the elastic element 5, making the connection between the elastic element 5 and the housing more robust and able to withstand greater tensile and compressive forces. When the linear motor is working, the elastic element 5 is subjected to tensile forces and vibrations from the mass block 4. The connecting platform 22 can distribute these forces over a larger area of ​​the housing, avoiding excessive local stress and reducing the possibility of housing deformation or damage. The connecting platform 22 can reduce the distance between the elastic element 5 and the mass block 4, which can limit the deformation of the elastic element 5 to a certain extent, preventing excessive deformation of the elastic element 5 during operation, thereby ensuring that the elastic element 5 operates within a suitable elastic range. At the same time, the connecting platform 22 can also act as a vibration buffer structure, absorbing and weakening the vibration energy transmitted from the elastic element 5 to the housing, reducing the propagation of vibration within the housing, thereby reducing the noise and vibration generated during the operation of the linear motor.

[0021] As a further feature of the housing, the base 1 is provided with a positioning protrusion 12 for positioning the flexible substrate 3, and the positioning protrusion 12 is located near the connection port. The advantages of this design are: it makes it easier to position the flexible substrate 3, ensuring connection stability; in conjunction with the connection port, it allows for two-point positioning of the flexible substrate 3, preventing it from deviating and ensuring the stability of the circuit connections on the flexible substrate 3; at the same time, the structure is simple, easy to process, and has good performance.

[0022] This utility model also provides a linear motor based on the motor housing, such as... Figure 3 and Figure 4As shown, the assembly includes a flexible substrate 3, a coil 7, and a mover assembly. The flexible substrate 3 has a positioning hole that engages with a positioning protrusion 12. The coil 7 is wrapped around a winding platform 11 and electrically connected to the flexible substrate 3. The mover assembly includes a mass block 4, a permanent magnet, and an elastic element 5. The mass block 4 has a receiving groove, in which the permanent magnet is held. The permanent magnet is positioned close to the coil 7. One end of the elastic element 5 is connected to a connecting platform 22, and the other end is connected to the side wall of the mass block 4. The beneficial effects of this configuration are as follows: With the coil 7 wrapped around the winding platform 11, the magnetism is effectively enhanced, resulting in better magnetic conductivity of the overall structure. This configuration also assists in positioning the coil 7, ensuring its stability and preventing deviation during subsequent use, thus improving the reliability of the coil 7. Furthermore, the elastic element 5 is connected between the connecting platform 22 and the elastic element 5. The connecting platform 22 provides an accurate installation position for the elastic element 5, ensuring quick and precise positioning during installation and preventing positional deviations. The connecting platform 22 also increases the contact area and connection points between the housing and the elastic element 5, making the connection between the elastic element 5 and the housing more robust and able to withstand greater tension and pressure. When the linear motor is working, the elastic element 5 is subjected to the tension and vibration of the mass block 4. The connecting platform 22 can distribute these forces over a larger area of ​​the housing, avoiding excessive local stress and reducing the possibility of deformation or damage to the housing. The connecting platform 22 can reduce the distance between the elastic element 5 and the mass block 4, which can limit the deformation of the elastic element 5 and prevent it from deforming excessively during operation, thus ensuring that the elastic element 5 can work within a suitable elastic range. At the same time, the connecting platform 22 can also act as a vibration buffer structure, absorbing and weakening the vibration energy transmitted from the elastic element 5 to the housing, reducing the propagation of vibration within the housing, thereby reducing the noise and vibration generated when the linear motor is working. Meanwhile, the flexible substrate 3 can achieve two-point positioning through the positioning holes and the connection port, ensuring the stability of the position of the flexible substrate 3 and avoiding short circuits or open circuits caused by the deviation of the flexible substrate 3, thus ensuring the reliability of the structure.

[0023] As a further configuration of the linear motor, the permanent magnets are multiple pieces, with adjacent permanent magnets having opposite magnetic pole distributions. The advantages of this configuration are: this arrangement of multiple adjacent permanent magnets with opposite magnetic poles allows for a denser distribution of the magnetic field within a certain area, thereby enhancing the magnetic field strength. Simultaneously, this arrangement helps reduce magnetic field distortion and inhomogeneity, making the magnetic field more uniform within the working area and improving the performance stability of the linear motor; furthermore, the interaction between adjacent permanent magnets with opposite magnetic poles creates an interacting magnetic field, concentrating the magnetic lines of force in the desired area and improving magnetic field utilization. With the increased magnetic field strength and utilization, the driving force of the linear motor directly increases, enabling the mover to accelerate and decelerate more quickly, thus improving the response speed of the linear motor.

[0024] As a further feature of the linear motor, a magnetic leakage groove is provided on the mass block 4 corresponding to the edge of the receiving slot. The advantages of this design are: it guides the magnetic field lines of leakage through the leakage groove, reducing the impact of leakage on the surrounding environment and other components, improving the effective utilization rate of the magnetic field, thereby enhancing the driving force and efficiency of the linear motor, changing the distribution of the magnetic field, making the magnetic field more concentrated in the required area, and improving the performance and stability of the linear motor. The design of the magnetic leakage groove allows for the removal of some material from the mass block 4, reducing its weight. This weight reduction can decrease the inertia of the linear motor, improving its response speed and dynamic performance.

[0025] As a further feature of the linear motor, a damping foam 6 is included, which is disposed on the side of the upper housing 2 away from the connecting platform 22. The beneficial effects of this arrangement are: the damping foam, utilizing its own elasticity and viscosity, provides resistance (i.e., damping force) to the mover assembly in the opposite direction of motion. This damping force effectively controls the speed and amplitude of the mover assembly, making the vibration of the linear motor smoother and more controllable. The damping foam can also absorb and dissipate some vibration energy, reducing collisions and friction between the mover assembly and other components, thereby reducing vibration and noise generation. Furthermore, by appropriately setting the parameters of the damping foam, the linear motor can respond faster during startup and shutdown. During startup, the damping foam helps the mover assembly reach a stable vibration state more quickly; during shutdown, the damping foam allows the mover assembly to stop moving more quickly, reducing residual vibration.

[0026] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.

Claims

1. A motor housing comprising a base and an upper housing, the base and upper housing being snap fitted together, characterised in that: The upper shell and the base form a connecting port for the soft substrate to pass through for electrical connection, the base is centrally provided with a wrap-around table for connection with the coil, the upper shell inner wall is provided with two connecting tables for connection with the rotor assembly, the two connecting tables are centrally symmetrically arranged along the projection on the base, the upper shell outer wall is formed with a deformation groove corresponding to the position of the connecting table, and the deformation groove is arranged along the height direction of the upper shell.

2. The motor enclosure of claim 1, wherein: The base is provided with a positioning protrusion for positioning the soft substrate, and the positioning protrusion is arranged close to the connecting port.

3. A linear motor having the motor housing of claim 2, characterized by: The soft substrate, the coil and the rotor assembly are included, the soft substrate is provided with a positioning hole, the positioning hole is inserted and matched with the positioning protrusion, the coil is wrapped around the wrap-around table and is electrically connected with the soft substrate, the rotor assembly includes a mass block, a permanent magnet and an elastic member, the mass block is provided with a receiving groove, the permanent magnet is clamped in the receiving groove, the permanent magnet is arranged close to the coil, and one end of the elastic member is connected to the connecting table and the other end is connected with the side wall of the mass block.

4. The linear motor according to claim 3, characterized by: The permanent magnet is a plurality of pieces, and the magnetic poles of adjacent permanent magnets are oppositely arranged.

5. The linear motor of claim 3, wherein: The mass block is provided with a magnetic leakage groove corresponding to the position of the receiving groove edge.

6. The linear motor of claim 3, wherein: Further comprising a damping cotton bubble, the damping cotton bubble is arranged on one side of the upper shell away from the connecting table.

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