Electromagnetic actuator and power equipment

Abstract

The embodiment of the utility model discloses an electromagnetic actuator and power equipment, and the electromagnetic actuator comprises a housing which is provided with a first accommodation cavity and a second accommodation cavity; the first actuating assembly is arranged in the first containing cavity, the first actuating assembly comprises a first guide shaft and a first mover unit, the first guide shaft extends in the first direction, the first mover unit is movably connected to the first guide shaft, and the first mover unit can move in the first direction relative to the first guide shaft; the second actuating assembly is arranged in the second containing cavity, the second actuating assembly comprises a second guide shaft and a second mover unit, the second guide shaft extends in the second direction, the second mover unit is movably connected to the second guide shaft, and the second mover unit can move in the second direction relative to the second guide shaft. According to the application, the electromagnetic actuator is utilized to synchronously perform vibration reduction on the power equipment in multiple different directions, and the vibration reduction effect of the electromagnetic actuator is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an electromagnetic actuator and a power device. Background Art

[0002] The engines and gearboxes of ships, cars and other machines will generate vibrations during operation, causing damage to the machine itself and the environment. Using electromagnetic actuators to reduce vibrations of controlled objects is a widely used vibration reduction technology. Electromagnetic actuators are used by being installed on controlled objects that generate vibrations. Existing electromagnetic actuators can only reduce vibrations in a single direction for controlled objects. For example, electromagnetic actuators can only reduce vibrations in the vertical or horizontal direction, and cannot reduce vibrations in multiple directions, resulting in poor vibration reduction effects. Therefore, how to improve the vibration reduction effect of electromagnetic actuators has become an urgent problem to be solved. Utility Model Content

[0003] The embodiments of the present application provide an electromagnetic actuator and a power device to enhance the vibration reduction effect of the electromagnetic actuator.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] In one aspect, an electromagnetic actuator is provided, having a first direction and a second direction intersecting each other, comprising:

[0006] The housing is provided with a first accommodating chamber and a second accommodating chamber;

[0007] a first actuating assembly disposed in the first accommodating chamber, the first actuating assembly comprising: a first guide shaft and a first mover unit, the first guide shaft extending along the first direction, the first mover unit being movably connected to the first guide shaft, and the first mover unit being capable of moving relative to the first guide shaft along the first direction; and

[0008] The second actuating assembly is disposed in the second accommodating chamber, and the second actuating assembly includes: a second guide shaft and a second movable subunit, the second guide shaft extends along the second direction, the second movable subunit is movably connected to the second guide shaft, and the second movable subunit can move along the second direction relative to the second guide shaft.

[0009] In addition to or as an alternative to one or more of the features disclosed above, the electromagnetic actuator further has a third direction intersecting the first direction and the second direction in pairs;

[0010] A plurality of the first accommodating cavities and a plurality of the second accommodating cavities are provided, and the plurality of the first accommodating cavities are distributed in the third direction at intervals, and the plurality of the second accommodating cavities are distributed in the third direction at intervals;

[0011] The first actuating components and the second actuating components are provided in multiple groups, each group of the first actuating components is respectively provided in a corresponding first accommodating cavity, and each group of the second actuating components is respectively provided in a corresponding second accommodating cavity.

[0012] In addition to or as an alternative to one or more of the features disclosed above, the operating frequency range of the first actuating assembly and the second actuating assembly is 10 Hz to 500 Hz;

[0013] The natural frequency range of the shell is 3103.6 Hz to 4085.7 Hz.

[0014] In addition to or as an alternative to one or more of the features disclosed above, the first guide shaft includes: a first body portion and a first base portion;

[0015] The first main body extends along the first direction, the first base is disposed on one side of the first main body in the first direction, the first base is fixedly connected to the housing, and the first mover unit is movably connected to the first main body;

[0016] The second guide shaft includes: a second main body portion and a second base portion;

[0017] The second main body extends along the second direction, the second base is arranged on one side of the second main body in the second direction, and the second base is fixedly connected to the shell, and the second mover unit is movably connected to the second main body.

[0018] In addition to or as an alternative to one or more of the features disclosed above, the first actuating assembly further comprises: a first coil, a first magnetic conductor and a first magnetic conductor ring;

[0019] The first magnetic conductor is sleeved on the outer circumference of the first main body, and the first magnetic conductor is arranged close to the first base portion relative to the first mover unit in the first direction, the first coil is arranged around the outer circumference of the first magnetic conductor, and the first coil is electrically connected to an external circuit, and the first magnetic conductive ring is arranged around the outer circumference of the first coil, and the first magnetic conductive ring is fixedly connected to the first mover unit;

[0020] The second actuating assembly further includes: a second coil, a second magnetic conductor and a second magnetic conductor ring;

[0021] The second magnetic conductor is sleeved on the outer circumference of the second main body, and the second magnetic conductor is arranged close to the second base portion relative to the second mover unit in the second direction, the second coil is arranged on the outer circumference of the second magnetic conductor, and the second coil is electrically connected to the external circuit, the second magnetic ring is arranged around the outer circumference of the second coil, and the second magnetic ring is fixedly connected to the second mover unit.

[0022] In addition to or as an alternative to one or more of the features disclosed above, the first magnetic conductor and the second magnetic conductor are both made of silicon steel sheets.

[0023] In addition to one or more features disclosed above, or as an alternative, the first actuating assembly further includes: a first force transmission frame, which is disposed between the first magnetic conductor and the first base portion, and the first force transmission frame is fixedly connected to the first base portion and the first coil respectively.

[0024] The second actuating assembly further includes: a second force transmission frame, which is disposed between the second magnetic conductor and the second base portion, and the second force transmission frame is fixedly connected to the second base portion and the second coil respectively.

[0025] In addition to or as an alternative to one or more of the features disclosed above, the first mover unit includes: a first magnetic steel support body, which is sleeved on the outer periphery of the first main body; and

[0026] A first magnetic steel, movably disposed between the first magnetic steel support and the first magnetic conductor;

[0027] The second mover unit comprises: a second magnetic steel support body, which is sleeved on the outer periphery of the second main body; and

[0028] The second magnetic steel is movably disposed between the second magnetic steel support and the second magnetic conductor.

[0029] In addition to or as an alternative to one or more of the features disclosed above, the first actuating assembly further comprises: a first elastic member and a second elastic member;

[0030] The first elastic member is disposed at one end of the first main body away from the first base, and the first elastic member is fixedly connected to the first main body and the first magnetic steel support respectively; the second elastic member is disposed at one end of the first main body close to the first base, and the second elastic member is fixedly connected to the first base and the first magnetic conductive ring respectively;

[0031] The second actuating assembly further includes: a third elastic member and a fourth elastic member;

[0032] The third elastic member is arranged at one end of the second main body away from the second base portion, and the third elastic member is fixedly connected to the second main body and the second magnetic steel support body respectively. The fourth elastic member is arranged at one end of the second main body close to the second base portion, and the fourth elastic member is fixedly connected to the second base portion and the second magnetic conductive ring respectively.

[0033] In addition to or as an alternative to one or more of the features disclosed above, the electromagnetic actuator further has a reference surface perpendicular to the second direction;

[0034] The housing has a bottom wall, and a plurality of first heat dissipation holes are formed on the bottom wall;

[0035] On the reference plane, at least part of the orthographic projection of the first heat dissipation hole is located within the orthographic projection of the first accommodating cavity, and at least part of the orthographic projection of the first heat dissipation hole is located within the orthographic projection of the second accommodating cavity.

[0036] In addition to or as an alternative to one or more of the features disclosed above, the shell has a plurality of support portions, which are protruded from the bottom wall of the shell away from the second accommodating cavity.

[0037] In addition to or as an alternative to one or more of the features disclosed above, the electromagnetic actuator further has a reference surface perpendicular to the second direction;

[0038] The device further comprises: a cover body, which is arranged on the housing and covers the first accommodation cavity and the second accommodation cavity, and the cover body is provided with a plurality of second heat dissipation holes.

[0039] On the reference plane, at least part of the orthographic projection of the second heat dissipation hole is located within the orthographic projection of the first accommodating cavity, and at least part of the orthographic projection of the second heat dissipation hole is located within the orthographic projection of the second accommodating cavity.

[0040] In another aspect, a power device is further disclosed, in addition to or as an alternative to one or more of the features disclosed above, the power device comprises a power body; and

[0041] The electromagnetic actuator as described in any one of the above items is connected to a power body, and is used to absorb vibrations of the power device.

[0042] One of the above technical solutions has the following advantages or beneficial effects: in the present application, the first movable unit is moved along the first direction relative to the first guide axis to realize the vibration reduction of the first direction of the power equipment by the first movable unit, and the second movable unit is moved along the second direction relative to the second guide axis to realize the vibration reduction of the second direction Z of the power equipment by the second movable unit, thereby realizing the synchronous vibration reduction of the power equipment in multiple different directions by the electromagnetic actuator, effectively decoupling the special states such as the dynamic swing of the power equipment, and improving the vibration reduction effect of the electromagnetic actuator. At the same time, the electromagnetic actuator in the present application does not interfere with each other in different directions, and the output force is more stable, which further improves the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0044] Figure 1 is an exploded structural view of an electromagnetic actuator provided according to an embodiment of the present application;

[0045] Figure 2 is a cross-sectional view of a first actuating assembly provided according to an embodiment of the present application;

[0046] Figure 3 is a cross-sectional view of a second actuating assembly provided according to an embodiment of the present application;

[0047] Figure 4 is a three-dimensional structural diagram of a housing provided according to an embodiment of the present application;

[0048] Figure 5 is a three-dimensional structural diagram of a housing from another perspective provided by an embodiment of the present application;

[0049] Figure 6 is a top view of a housing provided according to an embodiment of the present application;

[0050] Figure 7 is a top view of a cover body provided according to an embodiment of the present application;

[0051] Figure 8 is a structural diagram of a bidirectional output test system of an electromagnetic actuator provided in an embodiment of the present application;

[0052] Figure 9a is a frequency sweep curve diagram of the second actuating component of the electromagnetic actuator when a control signal is applied only to the second actuating component according to an embodiment of the present application;

[0053] Figure 9bis a frequency sweep curve diagram of the first actuating component when a control signal is applied only to the second actuating component of the electromagnetic actuator according to an embodiment of the present application;

[0054] Fig.10a is a frequency sweep curve diagram of the second actuating component when a control signal is applied only to the first actuating component of the electromagnetic actuator according to an embodiment of the present application;

[0055] Fig.10b It is a frequency sweep curve diagram of the first actuating component of the electromagnetic actuator when a control signal is applied only to the first actuating component according to an embodiment of the present application.

[0056] Description of reference numerals:

[0057] 100. Electromagnetic actuator;

[0058] 110, housing; 111, first accommodating cavity; 112, second accommodating cavity; 113, bottom wall; 1131, first heat dissipation hole; 114, supporting portion;

[0059] 120, first actuating assembly; 121, first guide shaft; 1211, first main body; 1212, first base; 122, first mover unit; 1221, first magnetic steel support; 1222, first magnetic steel; 1223, first locking member; 123, first coil; 124, first magnetic conductor; 125, first magnetic conductor ring; 126, first force transmission frame; 127, first elastic member; 128, second elastic member; 129, first fixing frame;

[0060] 130, second actuating assembly; 131, second guide shaft; 1311, second main body; 1312, second base; 132, second mover unit; 1321, second magnetic steel support; 1322, second magnetic steel; 1323, second locking member; 133, second coil; 134, second magnetic conductor; 135, second magnetic conductor ring; 136, second force transmission frame; 137, third elastic member; 138, fourth elastic member; 139, second fixing frame;

[0061] 140. Cover body; 141. Second heat dissipation hole. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and beneficial effects of this application more clear, the following further describes this application in detail in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining this application, not for limiting this application.

[0063] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" refers to two or more, unless otherwise clearly and specifically defined.

[0064] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] In the embodiments of this application, please refer to Figures 1 to 7 The present application provides an electromagnetic actuator 100, the electromagnetic actuator 100 having a first direction X, a second direction Z and a third direction Y intersecting each other. Exemplarily, the electromagnetic actuator 100 has the first direction X, the second direction Z and the third direction Y which are perpendicular to each other. "Vertical" refers to a state where the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 89° to 91°.

[0067] Specifically, the electromagnetic actuator 100 includes a housing 110 , a first actuating assembly 120 , a second actuating assembly 130 and a cover 140 .

[0068] Specifically, the housing 110 is provided with a first accommodating cavity 111 and a second accommodating cavity 112; the first actuating assembly 120 is provided in the first accommodating cavity 111, and the first actuating assembly 120 includes: a first guide shaft 121 and a first movable unit 122, the first guide shaft 121 extends along a first direction X, and the first movable unit 122 is movably connected to the first guide shaft 121, and the first movable unit 122 can move relative to the first guide shaft 121 along the first direction X; the second actuating assembly 130 Disposed in the second accommodating cavity 112, the second actuating assembly 130 includes: a second guide shaft 131 and a second movable unit 132, the second guide shaft 131 extends along the second direction Z, the second movable unit 132 is movably connected to the second guide shaft 131, and the second movable unit 132 can move along the second direction Z relative to the second guide shaft 131; the cover body 140 is disposed on the shell 110 and the cover body 140 covers the first accommodating cavity 111 and the second accommodating cavity 112 to seal the shell 110.

[0069] It can be understood that in the present application, the first movable unit 122 is moved relative to the first guide shaft 121 along the first direction X to achieve vibration reduction of the power device in the first direction X by using the first movable unit 122, and the second movable unit 132 is moved relative to the second guide shaft 131 along the second direction Z to achieve vibration reduction of the power device in the second direction Z by using the second movable unit 132, thereby achieving the synchronous vibration reduction of the power device in multiple different directions by using the electromagnetic actuator 100, effectively decoupling special states such as dynamic swing of the power device, and improving the vibration reduction effect of the electromagnetic actuator 100. At the same time, the electromagnetic actuator 100 in the present application does not interfere with each other in different directions, and the output force is more stable, which further improves the vibration reduction effect.

[0070] In one embodiment, a plurality of first accommodating cavities 111 and a plurality of second accommodating cavities 112 are provided, and the plurality of first accommodating cavities 111 are spaced apart in the third direction Y, and the plurality of second accommodating cavities 112 are spaced apart in the third direction Y. A plurality of first actuating assemblies 120 and a plurality of second actuating assemblies 130 are provided, and each group of first actuating assemblies 120 is respectively provided in a corresponding first accommodating cavity 111, that is, a plurality of first actuating assemblies 120 are provided in parallel; and each group of second actuating assemblies 130 is respectively provided in a corresponding second accommodating cavity 112. That is, a plurality of second actuating assemblies 130 are provided in parallel.

[0071] It can be understood that the present application further makes the output force of the electromagnetic actuator 100 in different directions more stable by disposing multiple sets of first actuating components 120 and second actuating components 130, thereby further improving the vibration reduction effect.

[0072] In one embodiment, the operating frequency range of the first actuating assembly 120 and the second actuating assembly 130 is 10 Hz to 500 Hz; that is, the operating frequency of the first actuating assembly 120 and the second actuating assembly 130 can be controlled within the range of 10 Hz to 500 Hz. For example, the operating frequency of the first actuating assembly 120 and the second actuating assembly 130 can be one of 10 Hz, 50 Hz, 150 Hz, 200 Hz, 250 Hz, 300 Hz, 350 Hz, 400 Hz, 450 Hz or 500 Hz or a range consisting of any two of them. The above specific values ​​are given for example only, and any value within the range of 10 Hz to 500 Hz is within the protection scope of the present application.

[0073] The natural frequency range of the housing 110 is 3103.6 Hz to 4085.7 Hz, that is, the natural frequency of the housing 110 can be controlled within the range of 3103.6 Hz to 4085.7 Hz. For example, the natural frequency of the housing 110 can be one of 3103.6 Hz, 3200 Hz, 3300 Hz, 3400 Hz, 3500 Hz, 3600 Hz, 3700 Hz, 3800 Hz, 3900 Hz or 4085.7 Hz or a range consisting of any two of them. The above specific values ​​are only given by way of example, and any value within the range of 3103.6 Hz to 4085.7 Hz is within the protection scope of the present application.

[0074] The present application limits the operating frequencies of the first actuating assembly 120 and the second actuating assembly 130 to be within the range of 10 Hz to 500 Hz, and the natural frequency of the shell 110 to be within the range of 3103.6 Hz to 4085.7 Hz, so that the natural frequency of the shell 110 avoids the operating frequencies of the first actuating assembly 120 and the second actuating assembly 130, avoids the first actuating assembly 120 and the second actuating assembly 130 causing local vibration during use, causing the output level to deviate from the design range, causing control difficulties, and ensures that during the operation of the electromagnetic actuator 100, the shell 110 does not resonate, thereby ensuring the normal use of the electromagnetic actuator 100.

[0075] Specifically, the present application may utilize three-dimensional software to perform modal analysis calculations on the housing 110 .

[0076] The specific steps are: establish a three-dimensional finite element calculation model of the shell 110, conduct modal calculation analysis of the shell 110, simplify the model of the shell 110 according to the calculation needs, and do not need to establish a finite element model for irrelevant structures. For example: perform geometric cleaning on the geometric model, remove all local geometric features such as holes, chamfers, fillets, and bolt holes that do not affect the calculation results, and improve the efficiency and accuracy of the calculation.

[0077] After geometric processing, the geometric model is then imported into COMSOL software for meshing. A high-quality computational mesh model is generated, and finally the entire computational model generates a total of 18,668 domain units, 7,748 boundary elements, and 562 edge units. The characteristic frequency of the shell 110 is solved using the software, and the first-order frequency of the shell 110 is 3103.6 Hz, the second-order frequency is 3119 Hz, the third-order frequency is 3692 Hz, the fourth-order frequency is 3978.8 Hz, the fifth-order frequency is 4005.5 Hz, and the sixth-order frequency is 4085.7 Hz. The solution results show that the natural frequencies of the shell 110 are all outside the operating frequency range of the first actuating component 120 and the second actuating component 130, which can ensure that the shell 110 does not resonate during the operation of the electromagnetic actuator 100.

[0078] In one embodiment, the first guide shaft 121 includes: a first main body portion 1211 and a first base portion 1212; the first main body portion 1211 extends along the first direction X, the first base portion 1212 is arranged on one side of the first main body portion 1211 in the first direction X, and the first base portion 1212 is fixedly connected to the shell 110 to position and fix the first guide shaft 121, and the first mover unit 122 can be movably connected to the first main body portion 1211 to realize output force in the first direction X.

[0079] The first main body portion 1211 is cylindrical or in other cylindrical shapes, but is not limited thereto.

[0080] In one embodiment, the first actuating assembly 120 further includes: a first coil 123 , a first magnetic conductor 124 , a first magnetic conductor ring 125 and a first force transmission frame 126 .

[0081] Specifically, the first magnet 124 is sleeved on the outer periphery of the first main body 1211, and the first magnet 124 is arranged close to the first base portion 1212 relative to the first movable unit 122 in the first direction X. The first coil 123 is arranged around the outer periphery of the first magnet 124, which is beneficial to its heat dissipation, and the first coil 123 is electrically connected to the external circuit. The first magnetic ring 125 is arranged around the outer periphery of the first coil 123, and the first magnetic ring 125 is fixedly connected to the first movable unit 122 to save space and make the structure compact. At the same time, the first coil 123, the first magnet 124, and the first magnetic ring 125 form an electromagnetic structure; the first force transmission frame 126 is arranged between the first magnet 124 and the first base portion 1212, and the first force transmission frame 126 is fixedly connected to the first base portion 1212 and the first coil 123 respectively to achieve the limiting fixation of the first coil 123.

[0082] The driving signals of the plurality of first coils 123 are connected in series to ensure that the output force phases are consistent.

[0083] In one embodiment, the first magnetic conductor 124 and the second magnetic conductor 134 are both made of silicon steel sheets to reduce the heat load generated by eddy currents.

[0084] In one embodiment, the first mover unit 122 includes a first magnetic steel bracket 1221 and a first magnetic steel 1222 .

[0085] The first magnetic steel bracket 1221 is sleeved on the outer periphery of the first main body 1211 ; the first magnetic steel 1222 is movably disposed between the first magnetic steel bracket 1221 and the first magnetic conductor 124 .

[0086] The first magnetic steel support 1221 is made of magnetic conductive material, and changes in its structure will cause changes in the electromagnetic performance of the entire electromagnetic actuator 100. Usually, the electromagnetic actuator 100 will avoid damaging the structure of this part.

[0087] The first magnetic steel bracket 1221 and the first magnetic steel 1222 are both in a circular ring shape, but the present invention is not limited thereto.

[0088] The first main body 1211 is movably sleeved with a first locking member 1223 , and the first locking member 1223 connects the first magnetic steel support 1221 , the first magnetic steel 1222 , and the first magnetic conductor 124 into a whole.

[0089] In one embodiment, the first actuating assembly 120 further includes: a first elastic member 127 and a second elastic member 128; the first elastic member 127 is disposed at one end of the first main body portion 1211 away from the first base portion 1212, and the first elastic member 127 is respectively fixedly connected to the first main body portion 1211 and the first magnetic steel support body 1221, and the second elastic member 128 is disposed at one end of the first main body portion 1211 close to the first base portion 1212, and the second elastic member 128 is respectively fixedly connected to the first base portion 1212 and the first magnetic conductive ring 125.

[0090] The first elastic member 127 and the second elastic member 128 may be springs or spring sheets, or other elastic elements, but are not limited thereto. Exemplarily, the first elastic member 127 and the second elastic member 128 are spring sheets.

[0091] The first elastic member 127 is connected to the first main body 1211 and the first magnetic steel support 1221 by welding, clamping, screwing, etc., but not limited thereto. The second elastic member 128 is connected to the first base 1212 and the first magnetic ring 125 by welding, clamping, screwing, etc., but not limited thereto. Exemplarily, the first elastic member 127 is screwed to the first main body 1211 and the first magnetic steel support 1221, the second elastic member 128 is screwed to the first base 1212, and the second elastic member 128 is screwed to the first magnetic ring 125 through the first fixing frame 129.

[0092] In summary, when a sinusoidal signal is applied to the first coil 123 of the first actuating component 120, the electromagnetic structure formed by the first coil 123, the first magnetic conductor 124, and the first magnetic ring 125 generates a corresponding electromagnetic force, driving the first magnetic steel support 1221 and the first magnetic steel 1222 to form the first mover unit 122 to move along the first guide shaft 121, so as to achieve the first direction X output vibration reduction of the power equipment. At the same time, the first elastic member 127 and the second elastic member 128 are deformed to generate a reset force, so that the first mover unit 122 is reset after the signal is canceled. According to the vibration characteristics of the controlled object, the corresponding current signal is input, and the characteristic line spectrum of the controlled object can be suppressed accordingly, thereby realizing active vibration absorption. The magnitude of the electromagnetic force at different stroke positions is optimized through simulation to ensure that the output force nonlinearity of the first actuating component 120 is small.

[0093] In one embodiment, the second guide shaft 131 includes: a second main body portion 1311 and a second base portion 1312; the second main body portion 1311 extends along the second direction Z, the second base portion 1312 is arranged on one side of the second main body portion 1311 in the second direction Z, and the second base portion 1312 is fixedly connected to the shell 110 to position and fix the second guide shaft 131, and the second movable unit 132 can be movably connected to the second main body portion 1311 to realize output force in the second direction Z.

[0094] The second main body 1311 is cylindrical or in other cylindrical shapes, but is not limited thereto.

[0095] In one embodiment, the second actuating assembly 130 further includes: a second coil 133 , a second magnetic conductor 134 , a second magnetic conductor ring 135 and a second force transmission frame 136 .

[0096] Specifically, the second magnetizer 134 is sleeved on the outer periphery of the second main body 1311, and the second magnetizer 134 is arranged close to the second base portion 1312 relative to the second movable unit 132 in the second direction Z. The second coil 133 is arranged on the outer periphery of the second magnetizer 134, which is beneficial to its heat dissipation, and the second coil 133 is electrically connected to the external circuit. The second magnetic ring 135 is arranged around the outer periphery of the second coil 133, and the second magnetic ring 135 is fixedly connected to the second movable unit 132 to save space and make the structure compact. At the same time, the second coil 133, the second magnetizer 134, and the second magnetic ring 135 form an electromagnetic structure; the second force transmission frame 136 is arranged between the second magnetizer 134 and the second base portion 1312, and the second force transmission frame 136 is fixedly connected to the second base portion 1312 and the second coil 133 respectively to realize the limiting fixation of the second coil 133.

[0097] The driving signals of the plurality of second coils 133 are connected in series to ensure that the output force phases are consistent.

[0098] In one embodiment, the first magnetic conductor 124 and the second magnetic conductor 134 are both made of silicon steel sheets to reduce the heat load generated by eddy currents.

[0099] In one embodiment, the second mover unit 132 includes a second magnetic steel bracket 1321 and a second magnetic steel 1322 .

[0100] The second magnetic steel bracket 1321 is sleeved on the outer circumference of the second main body 1311 ; the second magnetic steel 1322 is movably disposed between the second magnetic steel bracket 1321 and the second magnetic conductive body 134 .

[0101] The second magnetic steel support 1321 is made of magnetic conductive material, and changes in its structure will cause changes in the electromagnetic performance of the entire electromagnetic actuator 100. Usually, the electromagnetic actuator 100 will avoid damaging the structure of this part.

[0102] The second magnetic steel bracket 1321 and the second magnetic steel 1322 are both in a circular ring shape, but the present invention is not limited thereto.

[0103] The second main body 1311 is movably sleeved with a second locking member 1323 , and the second locking member 1323 connects the second magnetic steel support 1321 , the second magnetic steel 1322 , and the second magnetic conductor 134 into a whole.

[0104] In one embodiment, the second actuating assembly 130 further includes a third elastic member 137 and a fourth elastic member 138 .

[0105] The third elastic member 137 is arranged at one end of the second main body portion 1311 away from the second base portion 1312, and the third elastic member 137 is fixedly connected to the second main body portion 1311 and the second magnetic steel support body 1321 respectively. The fourth elastic member 138 is arranged at one end of the second main body portion 1311 close to the second base portion 1312, and the fourth elastic member 138 is fixedly connected to the second base portion 1312 and the second magnetic conductive ring 135 respectively.

[0106] The third elastic member 137 and the fourth elastic member 138 may be springs or spring sheets, or other elastic elements, but are not limited thereto. Exemplarily, the third elastic member 137 and the fourth elastic member 138 are spring sheets.

[0107] The third elastic member 137 is connected to the second main body 1311 and the second magnetic steel support 1321 by welding, clamping, screwing, etc., but not limited thereto. The fourth elastic member 138 is connected to the second base 1312 and the second magnetic conductive ring 135 by welding, clamping, screwing, etc., but not limited thereto. Exemplarily, the third elastic member 137 is screwed to the second main body 1311 and the second magnetic steel support 1321, the fourth elastic member 138 is screwed to the second base 1312, and the fourth elastic member 138 is screwed to the second magnetic conductive ring 135 through the second fixing frame 139.

[0108] In summary, when a sinusoidal signal is applied to the second coil 133 of the second actuating component 130, the electromagnetic structure formed by the second coil 133, the second magnetic conductor 134, and the second magnetic ring 135 generates a corresponding electromagnetic force, driving the second mover unit 132 formed by the second magnetic steel support 1321 and the second magnetic steel 1322 to move along the second guide shaft 131, so as to achieve the second direction Z output vibration reduction of the power equipment, and at the same time, the third elastic member 137 and the fourth elastic member 138 are deformed to generate a reset force, so that the second mover unit 132 is reset after the signal is canceled. According to the vibration characteristics of the controlled object, the corresponding current signal is input, and the characteristic line spectrum of the controlled object can be suppressed accordingly, thereby realizing active vibration absorption. The magnitude of the electromagnetic force at different stroke positions is optimized by simulation to ensure that the output force nonlinearity of the second actuating component 130 is small.

[0109] In one embodiment, the electromagnetic actuator further has a reference plane P perpendicular to the second direction Z;

[0110] The shell 110 has a bottom wall 113, and a plurality of first heat dissipation holes 1131 are formed on the bottom wall 113; on the reference plane P, the orthographic projections of at least some of the first heat dissipation holes 1131 are located within the orthographic projections of the first accommodating cavity 111, that is, at least some of the first heat dissipation holes 1131 are located in the first accommodating cavity 111, so as to achieve heat dissipation for the first actuating assembly 120 of the first accommodating cavity 111 and ensure the normal operation of the first actuating assembly 120.

[0111] At least part of the orthographic projection of the first heat dissipation hole 1131 is located within the orthographic projection of the second accommodating cavity 112, that is, at least part of the first heat dissipation hole 1131 is located in the second accommodating cavity 112, so as to achieve heat dissipation for the second actuating assembly 130 in the second accommodating cavity 112 and ensure the normal operation of the second actuating assembly 130.

[0112] The first heat dissipation holes 1131 located in the first accommodating cavity 111 are regularly arranged along the first direction X and the third direction Y respectively; the first heat dissipation holes 1131 located in the second accommodating cavity 112 are regularly arranged along a circumferential direction.

[0113] In one embodiment, the housing 110 has a plurality of support portions 114 , which are protruded from the bottom wall 113 of the housing 110 away from the second accommodation cavity 112 to ensure that a space is reserved at the bottom of the housing 110 for air convection heat dissipation.

[0114] The protruding height of the support portion 114 is 6 mm.

[0115] In one embodiment, a plurality of second heat dissipation holes 141 are formed on the cover body 140. On the reference plane P, the orthographic projections of at least some of the second heat dissipation holes 141 are located within the orthographic projections of the first accommodating cavity 111, so as to achieve heat dissipation of the first actuating assembly 120 in the first accommodating cavity 111 and ensure the normal operation of the first actuating assembly 120.

[0116] At least part of the orthographic projection of the second heat dissipation hole 141 is located within the orthographic projection of the second accommodating cavity 112 , so as to dissipate heat for the second actuating assembly 130 in the second accommodating cavity 112 and ensure the normal operation of the second actuating assembly 130 .

[0117] The second heat dissipation holes 141 located in the first accommodating cavity 111 are regularly arranged along the first direction X and the third direction Y respectively; the second heat dissipation holes 141 located in the second accommodating cavity 112 are regularly arranged along a circumferential direction.

[0118] In one embodiment, the present application further provides a bidirectional output testing system of the electromagnetic actuator 100 , which can be used to perform an output test on the electromagnetic actuator 100 .

[0119] Specifically, the test system includes: a test bench, a power amplifier, a signal generator, a data acquisition instrument and a computer. Specifically, the signal generator is electrically connected to the power amplifier, the power amplifier is electrically connected to the device to be tested on the test bench, the data acquisition instrument is electrically connected to the acceleration sensor and force sensor on the test bench respectively, and the computer is electrically connected to the data acquisition instrument.

[0120] Specifically, the electromagnetic actuator 100 is installed on the test bench. During the test, the control signal is output through the signal generator, and the signal is amplified by the power amplifier and output to the electromagnetic actuator 100 to drive the main electromagnetic actuator 100 to work. Then, the data is measured by the force sensor. The collected signal passes through the charge amplifier and is input into the data acquisition instrument, and the collected data is analyzed and processed on the computer.

[0121] Specifically, the specific testing method of the electromagnetic actuator 100 is as follows:

[0122] 1. Output test method of the first actuating assembly 120 of the electromagnetic actuator 100

[0123] The electromagnetic actuator 100 is installed on the test bench, and the first actuating component 120 of the electromagnetic actuator 100 outputs a control signal with a current of 10A and output frequencies of 40Hz, 80Hz, 120Hz, 160Hz, 200Hz, 240Hz, and 280Hz respectively. After the electromagnetic actuator 100 runs stably, the force and nonlinearity of the electromagnetic actuator 100 along the first direction are observed and recorded in Table 1.

[0124] Table 1 Performance of the electromagnetic actuator 100 along the first direction

[0125]

[0126]

[0127] It can be seen from the data in Table 1 that the magnitude of the force of the electromagnetic actuator 100 along the first direction is greater than 1000N at each test frequency point, meeting the technical indicator requirements.

[0128] 2. Output test method of the second actuating assembly 130 of the electromagnetic actuator 100

[0129] The electromagnetic actuator 100 is installed on the test bench, and the second actuating component 130 of the electromagnetic actuator 100 outputs control signals with a current of 10A and output frequencies of 40Hz, 80Hz, 120Hz, 160Hz, 200Hz, 240Hz, and 280Hz, respectively. After the electromagnetic actuator 100 runs stably, the force and nonlinearity of the electromagnetic actuator 100 along the second direction are observed and recorded in Table 2.

[0130] Table 2 Performance of electromagnetic actuator 100 along the second direction

[0131]

[0132] It can be seen from the data in Table 2 that the magnitude of the force of the electromagnetic actuator 100 along the second direction is greater than 1000N at each test frequency point, meeting the technical indicator requirements.

[0133] 3. Bidirectional output test method of the first actuating assembly 120 and the second actuating assembly 130 of the electromagnetic actuator 100

[0134] The electromagnetic actuator 100 is installed on the test bench, and the first actuating component 120 and the second actuating component 130 of the electromagnetic actuator 100 are synchronously output with a control signal having a current of 10A and an output frequency of 40Hz, 80Hz, 120Hz, 160Hz, 200Hz, 240Hz, and 280Hz, respectively. After the electromagnetic actuator 100 runs stably, the force and nonlinearity of the electromagnetic actuator 100 along the first direction are observed and recorded in Table 3, and the force and nonlinearity of the electromagnetic actuator 100 along the second direction are observed and recorded in Table 4.

[0135] Table 3 Performance of electromagnetic actuator 100 along the first direction

[0136]

[0137]

[0138] Table 4 Performance of the electromagnetic actuator 100 along the second direction

[0139]

[0140] It can be seen from the data in Table 3 and Table 4 that when the first actuating component 120 and the second actuating component 130 of the electromagnetic actuator 100 work simultaneously, the magnitudes of the force along the first direction and the force along the second direction of the electromagnetic actuator 100 are both above 1000N, which can ensure that the electromagnetic actuator 100 can simultaneously achieve synchronous vibration reduction control in different directions when performing vibration control.

[0141] 4. Frequency sweep test method of electromagnetic actuator 100

[0142] After all devices are connected as required, the electromagnetic actuator 100 is installed on the test bench, the device is powered on normally, and the second actuating component 130 is given a test signal with a current of 0.5A and an output frequency of 10Hz to 300Hz through the computer test software. Wait for the electromagnetic actuator 100 to complete the frequency sweep, observe the data collected on the test software, read the resonant frequency of the second direction of the electromagnetic actuator 100 and record it. For details, refer to Figure 9a and Figure 9b The frequency sweep curve diagram in ;

[0143] Stop the control signal, then output a test signal with a current of 0.5A and an output frequency of 10Hz to 300Hz to the first actuating component 120 through the computer test software, wait for the electromagnetic actuator 100 to complete the frequency sweep, observe the data collected on the test software, read the resonant frequency of the second direction of the electromagnetic actuator 100 and record it, refer to Fig.10a and Fig.10b The frequency sweep curve diagram in .

[0144] Test results such as Figure 9a and Fig.10b Please refer to the frequency sweep curve diagram in Figure 9a and Figure 9b In the frequency sweep curve diagram, the resonance frequency of the electromagnetic actuator 100 in the second direction is 18 Hz, and the vibration of the electromagnetic actuator 100 in the second direction has little effect on the output in the first direction; please refer to Fig.10a and Fig.10b According to the sweep frequency curve in FIG. 1 , the resonance frequency of the electromagnetic actuator 100 in the first direction is 20 Hz, and the vibration of the electromagnetic actuator 100 in the first direction has little effect on the output in the second direction.

[0145] On the other hand, in an embodiment of the present application, the present application also provides a power device, including: a power body; and an electromagnetic actuator 100 as in any of the above embodiments, the electromagnetic actuator 100 is connected to the power body, and the electromagnetic actuator 100 is used to absorb vibrations of the power device.

[0146] The above-mentioned power equipment may be a diesel engine, but is not limited thereto.

[0147] Among them, the present application can install the electromagnetic actuator 100 on the machine foot of the power equipment or use an intermediate bracket to install the electromagnetic actuator 100 on the power equipment. A rigid or elastic installation method can be adopted to match the electromagnetic actuator 100 with the machine foot or the intermediate bracket to meet its applicability and modularity requirements.

[0148] The introduction provided in the above steps is only used to help understand the method, structure and core idea of ​​the present application. For ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An electromagnetic actuator having a first direction and a second direction intersecting each other, characterized in that: include: The housing is provided with a first accommodating chamber and a second accommodating chamber; a first actuating assembly disposed in the first accommodating chamber, the first actuating assembly comprising: a first guide shaft and a first mover unit, the first guide shaft extending along the first direction, the first mover unit being movably connected to the first guide shaft, and the first mover unit being capable of moving relative to the first guide shaft along the first direction; and The second actuating assembly is disposed in the second accommodating chamber, and the second actuating assembly includes: a second guide shaft and a second movable subunit, the second guide shaft extends along the second direction, the second movable subunit is movably connected to the second guide shaft, and the second movable subunit can move along the second direction relative to the second guide shaft.

2. The electromagnetic actuator according to claim 1, characterized in that: The electromagnetic actuator also has a third direction intersecting with the first direction and the second direction in pairs; A plurality of the first accommodating cavities and a plurality of the second accommodating cavities are provided, and the plurality of the first accommodating cavities are distributed in the third direction at intervals, and the plurality of the second accommodating cavities are distributed in the third direction at intervals; The first actuating components and the second actuating components are provided in multiple groups, each group of the first actuating components is respectively provided in a corresponding first accommodating cavity, and each group of the second actuating components is respectively provided in a corresponding second accommodating cavity.

3. The electromagnetic actuator according to any one of claims 1 to 2, characterized in that: The operating frequency range of the first actuating assembly and the second actuating assembly is 10 Hz to 500 Hz; The natural frequency range of the shell is 3103.6 Hz to 4085.7 Hz.

4. The electromagnetic actuator according to any one of claims 1 to 2, characterized in that: The first guide shaft includes: a first main body portion and a first base portion; The first main body extends along the first direction, the first base is disposed on one side of the first main body in the first direction, the first base is fixedly connected to the housing, and the first mover unit is movably connected to the first main body; The second guide shaft includes: a second main body portion and a second base portion; The second main body extends along the second direction, the second base is arranged on one side of the second main body in the second direction, and the second base is fixedly connected to the shell, and the second mover unit is movably connected to the second main body.

5. The electromagnetic actuator according to claim 4, characterized in that: The first actuating assembly further includes: a first coil, a first magnetic conductor and a first magnetic conductor ring; The first magnetic conductor is sleeved on the outer circumference of the first main body, and the first magnetic conductor is arranged close to the first base portion relative to the first mover unit in the first direction, the first coil is arranged around the outer circumference of the first magnetic conductor, and the first coil is electrically connected to an external circuit, and the first magnetic conductive ring is arranged around the outer circumference of the first coil, and the first magnetic conductive ring is fixedly connected to the first mover unit; The second actuating assembly further includes: a second coil, a second magnetic conductor and a second magnetic conductor ring; The second magnetic conductor is sleeved on the outer circumference of the second main body, and the second magnetic conductor is arranged close to the second base portion relative to the second mover unit in the second direction, the second coil is arranged on the outer circumference of the second magnetic conductor, and the second coil is electrically connected to the external circuit, the second magnetic ring is arranged around the outer circumference of the second coil, and the second magnetic ring is fixedly connected to the second mover unit.

6. The electromagnetic actuator according to claim 5, characterized in that: The first magnetic conductor and the second magnetic conductor are both made of silicon steel sheets.

7. The electromagnetic actuator according to claim 5, characterized in that: The first actuating assembly further includes: a first force transmission frame, which is disposed between the first magnetic conductor and the first base portion, and the first force transmission frame is fixedly connected to the first base portion and the first coil respectively; The second actuating assembly further includes: a second force transmission frame, which is disposed between the second magnetic conductor and the second base portion, and the second force transmission frame is fixedly connected to the second base portion and the second coil respectively.

8. The electromagnetic actuator according to claim 5, characterized in that: The first mover unit comprises: a first magnetic steel bracket, which is sleeved on the outer periphery of the first main body; and A first magnetic steel, movably disposed between the first magnetic steel support and the first magnetic conductor; The second mover unit comprises: a second magnetic steel support body, which is sleeved on the outer periphery of the second main body; and The second magnetic steel is movably disposed between the second magnetic steel support and the second magnetic conductor.

9. The electromagnetic actuator according to claim 8, characterized in that: The first actuating assembly further includes: a first elastic member and a second elastic member; The first elastic member is disposed at one end of the first main body away from the first base, and the first elastic member is fixedly connected to the first main body and the first magnetic steel support respectively; the second elastic member is disposed at one end of the first main body close to the first base, and the second elastic member is fixedly connected to the first base and the first magnetic conductive ring respectively; The second actuating assembly further includes: a third elastic member and a fourth elastic member; The third elastic member is arranged at one end of the second main body away from the second base portion, and the third elastic member is fixedly connected to the second main body and the second magnetic steel support body respectively. The fourth elastic member is arranged at one end of the second main body close to the second base portion, and the fourth elastic member is fixedly connected to the second base portion and the second magnetic conductive ring respectively.

10. The electromagnetic actuator according to claim 1, characterized in that: The electromagnetic actuator also has a reference surface perpendicular to the second direction; The housing has a bottom wall, and a plurality of first heat dissipation holes are formed on the bottom wall; On the reference plane, at least part of the orthographic projection of the first heat dissipation hole is located within the orthographic projection of the first accommodating cavity, and at least part of the orthographic projection of the first heat dissipation hole is located within the orthographic projection of the second accommodating cavity.

11. The electromagnetic actuator according to claim 10, characterized in that: The shell has a plurality of supporting parts, and the supporting parts are protruded from the bottom wall of the shell away from the second accommodating cavity.

12. The electromagnetic actuator according to claim 1, characterized in that: The electromagnetic actuator also has a reference surface perpendicular to the second direction; The device further comprises: a cover body, which is arranged on the housing and covers the first accommodation cavity and the second accommodation cavity, and the cover body is provided with a plurality of second heat dissipation holes. On the reference plane, at least part of the orthographic projection of the second heat dissipation hole is located within the orthographic projection of the first accommodating cavity, and at least part of the orthographic projection of the second heat dissipation hole is located within the orthographic projection of the second accommodating cavity.

13. A power device, characterized in that: include: Power body; as well as The electromagnetic actuator according to any one of claims 1 to 12, wherein the electromagnetic actuator is connected to a power body, and the electromagnetic actuator is used to absorb vibrations of the power device.

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