Highly integrated ultra-thin actuator

Abstract

A highly integrated ultra-thin actuator comprises: a housing formed by assembling a base and a cover plate; the driving device is in transmission connection with a speed reduction transmission mechanism; the output valve rod is in transmission connection fit with the output end of the speed reduction transmission device; the integrated electric connector is electrically connected with an electromechanical accessory outside the shell; the position sensor acts on the speed reduction transmission device or / and the output valve rod; the first circuit board is vertically arranged, and the position sensor is assembled on the first circuit board; the second circuit board is horizontally arranged, the integrated electric connecting piece is assembled on the second circuit board and is in electric connection fit with the second circuit board, and the second circuit board is in electric connection fit with the driving device; one end portion of the second circuit board is attached to the first circuit board and forms electric connection cooperation. According to the invention, a double-circuit-board mode is adopted, and the double-circuit-board mode is respectively connected with corresponding parts, so that the functions of partitioned power supply and communication connection are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the product technical field of actuator, especially a high integration ultrathin actuator. BACKGROUND

[0002] Actuators are divided into pneumatic actuators, electric actuators and hydraulic actuators. Pneumatic actuators are large in size, complex in wiring, and require air supply. Hydraulic actuators are large in size, complex in structure, and high in cost, and are generally suitable for large work sites. Therefore, the most commonly used actuator for civilian use is the electric actuator.

[0003] In electric actuators, electric components such as motors are required. The existing structure is to punch holes in the shell, then lead the wires of the electric components from the holes to the outside of the shell and weld them to the fittings outside the shell to achieve electrical connection, and then seal the holes with sealant. If there are multiple wiring components inside the shell, such as motors, contact switches, etc., they also need to be wired and led out. Therefore, this method has at least the following disadvantages: 1. The production and installation process is more complex, the efficiency is low, and a large amount of labor is required, resulting in increased costs; 2. The overall wiring structure is more complex, with numerous welding points, a high probability of disconnection, and a higher probability of failure during use; 3. The wire is relatively fragile and can be easily damaged during operation; 4. The electric components in different types of electric actuators are different. Due to the welding method, the wiring of each product is inconsistent and cannot be standardized, so the factory cannot stock a large amount of goods, resulting in a longer production and delivery cycle; 5. Each customer has different requirements, such as some products that use welding to connect the external fittings to the actuator, and some products that use connectors to connect the external fittings to the actuator. The wiring method cannot be standardized, which is one of the reasons why actuator manufacturers cannot stock a large amount of goods; 6. Once damaged, it is difficult to repair and replace, and the sealant needs to be removed to facilitate the movement of the components for inspection and repair. After successful repair, it needs to be installed in the designated position and resealed. The entire process is time-consuming and labor-intensive, and it is very inconvenient to operate. Non-professionals may have difficulty operating.

[0004] To solve the above problems, the applicant has previously developed a technical solution, please refer to patent document CN212910286U, an actuator with modular connection combination, comprising a housing, a driving device arranged on the housing, a speed reducing transmission device in transmission connection with the driving device, and an output valve rod connected with the output end of the speed reducing transmission device, the housing is provided with a modular connecting piece, one end of the modular connecting piece is electrically connected with the driving device in the housing, the other end of the modular connecting piece is electrically connected with the electromechanical accessory outside the housing. The utility model discloses a modular connecting piece, the wiring of the electrical accessory in the housing is uniformly led out through the modular connecting piece, the wiring of the actuator product end is standardized, which can meet the connection needs of various electromechanical accessories outside the housing and meet the needs of different customers.

[0005] However, the above-mentioned patent also has certain structural disadvantages in actual use process, for example: limited by the number, type and installation mode of parts, the thickness of the actuator (housing) is large, which leads to the actuator cannot be smoothly installed and used in narrow area (especially when the height of the installation area is insufficient). SUMMARY

[0006] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a highly integrated ultrathin actuator.

[0007] The technical scheme for solving the technical problems of the utility model is: a highly integrated ultrathin actuator, comprising:

[0008] The housing is assembled by a base and a cover plate, and a power cavity is formed in the housing;

[0009] The driving device is arranged in the power cavity, and the driving device is in transmission connection with a speed reducing transmission mechanism;

[0010] The output valve rod is in transmission connection with the output end of the speed reducing transmission device, and the housing is provided with an output hole, and the output valve rod transmits power outward at least partially through the output hole;

[0011] The integrated electrical connecting piece is arranged in the power cavity, and the integrated electrical connecting piece is in electrical connection with the electromechanical accessory outside the housing;

[0012] The position sensor is arranged in the power cavity, and the position sensor acts on the speed reducing transmission device or / and the output valve rod;

[0013] Further comprising:

[0014] The first circuit board is vertically arranged in the power cavity, and the position sensor is assembled to the first circuit board;

[0015] A second circuit board is horizontally arranged in the power cavity, the integrated electrical connector is assembled on the second circuit board and forms an electrical connection, and the second circuit board forms an electrical connection with the driving device;

[0016] One end of the second circuit board is arranged on the first circuit board and forms an electrical connection.

[0017] In some preferred embodiments of the utility model, the output end of the speed reducer is a sector gear, the position sensor is two contact switches arranged in the power cavity, the pin end of the contact switch is connected to the first circuit board, and the contact switch is horizontally arranged in the power cavity, and the sector gear can abut against any one of the contact switches.

[0018] In some preferred embodiments of the utility model, when the output valve rod is fully opened, the sector gear abuts against the triggering end of one of the contact switches, and when the output valve rod is fully closed, the sector gear abuts against the triggering end of the other contact switch.

[0019] In some preferred embodiments of the utility model, the shell is provided with a positioning groove, and the end of the first circuit board is clamped into the positioning groove.

[0020] In some preferred embodiments of the utility model, the base is provided with a plurality of elevation blocks, and the second circuit board is arranged on the elevation blocks, so that a lower area is formed between the second circuit board and the bottom surface of the base.

[0021] In some preferred embodiments of the utility model, the edge of the power cavity is provided with a wire harness channel, the wire harness channel is provided with a wire harness block near the second circuit board, the wire harness block is provided with a wire harness hole, and the wire harness hole is communicated with the lower area.

[0022] In some preferred embodiments of the utility model, the power cavity is further provided with a framework plate, the framework plate divides the power cavity into a first chamber and a second chamber, the driving device is arranged in the first chamber, and the speed reducer, the first circuit board, the second circuit board, the position sensor, the output valve rod and the integrated electrical connector are arranged in the second chamber.

[0023] The wire harness channel is provided with a wire harness hole near the first chamber, and the first chamber is communicated with the second chamber through the wire harness hole.

[0024] In some preferred embodiments of the utility model, the base is provided with a plurality of limiting blocks, the limiting blocks are matched with each other to enclose a limiting area, and the contact switches are arranged in the limiting area.

[0025] In some preferred embodiments of the utility model, the base is provided with a plurality of protection columns, the protection columns form a protection area, and the pin end of the contact switch at least partially extends into the protection area.

[0026] In some preferred embodiments of the utility model, the first circuit board is provided with a horizontal connecting groove, and the second circuit board is at least partially arranged in the horizontal connecting groove.

[0027] The utility model has the advantages of:

[0028] I. The double-circuit-board mode is adopted, and each circuit board is connected to corresponding components to realize the functions of partition power supply and communication connection.

[0029] II. The double circuit boards are also electrically connected to realize the functions of power supply and communication between each other.

[0030] III. The components are more reasonably distributed (dispersed), heat accumulation is reduced, and use stability is improved.

[0031] IV. The first circuit board is vertically arranged, and the second circuit board is horizontally arranged, which can match the installation direction requirements of various components. For example, the first circuit board can be adapted to a position sensor (contact switch), so that the pin end of the contact switch does not need to be bent, thereby improving the reliability and yield of the position sensor (contact switch).

[0032] V. The distribution positions of the internal components are rearranged, the thickness of the shell is greatly reduced, and the thickness size is reduced by at least 70% through actual comparison, forming an ultra-thin shell shape, thereby meeting the installation and use requirements in a smaller area. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic view of the appearance structure of the utility model.

[0034] Figure 2 is a schematic view of the application of the utility model.

[0035] Figure 3 is an exploded view of the utility model.

[0036] Figure 4 is a schematic view of the internal structure of the utility model.

[0037] Figure 5 is Figure 4 a partial structure enlarged schematic view of part A.

[0038] Figure 6 is Figure 4 a partial structure enlarged schematic view of part B.

[0039] Figure 7 is Figure 4 is a partial structure enlarged view of the C part in the middle.

[0040] Figure 8 is a structure view of the base.

[0041] Figure 9 is a sectional view of the utility model.

[0042] In the figure: 1, shell; 11, base; 111, pad high block; 112, lower area; 12, cover plate; 14, output hole; 15, positioning groove; 16, limiting block; 161, limiting area; 17, protection column; 171, protection area; 2, power cavity; 21, skeleton plate; 22, first chamber; 221, wire harness hole; 23, second chamber; 24, wire harness channel; 241, wire collection block; 242, wire collection hole; 3, driving device; 4, speed reduction transmission mechanism; 41, sector gear; 5, output valve rod; 6, position sensor; 61, contact switch; 611, pin end; 612, trigger end; 7, first circuit board; 71, horizontally connected groove; 8, second circuit board; 9, integrated electrical connector; 10, narrow area. DETAILED DESCRIPTION

[0043] The utility model is further described below in combination with the drawings and specific embodiments. It should be noted that the embodiments are only specific elaborations of the utility model, and the purpose is to enable those skilled in the art to better understand the technical scheme of the utility model, and should not be regarded as limiting the utility model.

[0044] In the description of the utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0045] In the description of the utility model, it should be noted that, unless otherwise specified and limited, if the terms "mounting", "connecting", "connection" appear, they should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] Example one

[0047] Reference Figures 1-9 A highly integrated ultra-thin actuator, comprising:

[0048] A housing 1 composed of a base 11 and a cover plate 12, and a power cavity 2 is formed in the housing 1; preferably, the base 11 and the cover plate 12 are connected and fixed by screws;

[0049] A drive device 3 arranged in the power cavity 2, and the drive device 3 is drivingly connected with a speed reduction mechanism 4; preferably, the drive device 3 is a motor;

[0050] An output valve rod 5 drivingly connected with an output end of the speed reduction mechanism, and an output hole 14 is formed in the housing 1, and the output valve rod 5 at least partially passes through the output hole 14 to transmit power outward;

[0051] An integrated electrical connector 9 arranged in the power cavity 2, and the integrated electrical connector 9 is electrically connected with electromechanical accessories outside the housing 1;

[0052] A position sensor 6 arranged in the power cavity 2, and the position sensor 6 acts on the speed reduction mechanism or / and the output valve rod 5;

[0053] In the prior art, the circuit board of the housing 1 is a single whole, and needs to meet the connection and control functions of all electrical components. Therefore, the direction of its installation is also single, and the most commonly used is the horizontal distribution mode (i.e. horizontal installation), which has the following defects: first, it will lead to the connection of some parts in an upper and lower position relationship to the circuit board, resulting in a significant increase in the overall thickness; second, the gear reduction mechanism is generally horizontally distributed, so the main part of the contact switch 61 must also be installed horizontally in order to cooperate with the gear reduction mechanism. In order to be connected to the circuit board, the pins of the contact switch 61 need to be bent, which reduces the stability and increases the probability of unqualified products during production and manufacturing; third, the installation area of the circuit board is limited, which will lead to the centralized installation of the parts cooperating with it, and the over-concentrated structure will affect the heat dissipation effect and normal use effect.

[0054] In order to solve the above defects, the solution provided by the present disclosure mainly adopts a double-circuit board structure, which is specifically as follows, and further comprises:

[0055] A first circuit board 7 arranged vertically in the power cavity 2, and the position sensor 6 is assembled to the first circuit board 7;

[0056] The second circuit board 8 is horizontally arranged in the power cavity 2, the integrated electric connector 9 is assembled on the second circuit board 8 and forms an electric connection, and the second circuit board 8 forms an electric connection with the driving device 3.

[0057] One end of the second circuit board 8 is arranged on the first circuit board 7 and forms an electric connection.

[0058] Working principle: The position sensor 6 monitors the position state of the speed reducer or / and the output valve rod 5 and feeds back (preferably through the first circuit board 7 for communication), and then controls (preferably through the second circuit board 8 for communication) the operation (forward rotation, reverse rotation or stop) of the driving device 3 according to the feedback information, so as to realize the control of the output valve rod 5. The output valve rod 5 is in driving connection with an external instrument, and the operation of the output valve rod 5 can realize the functions of turning on / off and flow size adjustment of the external instrument.

[0059] With reference to Figures 2-4 , the structure of the utility model has the following advantages: firstly, the double-circuit-board mode is adopted, each circuit board is connected with corresponding parts, and the functions of partition power supply and communication connection are realized; secondly, the double-circuit-boards are also electrically connected to realize power supply and communication functions between each other; thirdly, the distribution of parts is more reasonable (dispersed), heat accumulation is reduced, and use stability is improved; fourthly, the first circuit board 7 is vertically arranged, and the second circuit board 8 is horizontally arranged, which can match the installation direction requirements of various parts, for example, the first circuit board 7 can be adapted to the position sensor 6 (contact switch 61), so that the pin end 611 of the contact switch 61 does not need to be bent, thereby improving the reliability and yield of the position sensor 6 (contact switch 61); fifthly, the distribution position of the internal parts can be rearranged, the thickness of the shell 1 is greatly reduced, and the thickness size can be reduced by at least 70% through actual comparison, forming an ultra-thin shell 1 shape, thereby meeting the installation and use requirements in a smaller area 10.

[0060] Preferably, with reference to Figure 9The power cavity 2 is further provided with a skeleton plate 21, the skeleton plate 21 divides the power cavity 2 into a first chamber 22 and a second chamber 23, the driving device 3 is installed in the first chamber 22, the speed reduction transmission device, the first circuit board 7, the second circuit board 8, the position sensor 6, the output valve rod 5 and the integrated electric connector 9 are all arranged in the second chamber 23; the wire harness channel 24 is provided with a wire harness hole 221 close to the first chamber 22, and the first chamber 22 is communicated with the second chamber 23 through the wire harness hole 221. The power cavity 2 is divided into the first chamber 22 and the second chamber 23 through the skeleton plate 21, so that the installation requirements of different parts are met, and the skeleton plate 21 can also provide structural support for the speed reduction transmission device and other parts. In addition, the driving device 3 is generally a motor, and the motor is an external part, so the thickness of the motor is large and cannot be reduced. Therefore, the first chamber 22 and the second chamber 23 are divided, that is, the thickness of the second chamber 23 is obviously smaller than the thickness of the first chamber 22, so that the second chamber 23 can be matched with a narrow external installation area, and the first chamber 22 is installed in a staggered manner to realize the installation and use functions.

[0061] With reference to Figure 2 In some optional embodiments of the utility model, the output end of the speed reduction transmission device is a sector gear 41, the position sensor 6 is two contact switches 61 arranged in the power cavity 2, the pin end 611 of the contact switch 61 is connected to the first circuit board 7, and the contact switch 61 is in a horizontal state in the power cavity 2, and the sector gear 41 can abut against any one contact switch 61. The working principle is that when the output valve rod 5 is fully opened, the sector gear 41 abuts against the trigger end 612 of one of the contact switches 61, and when the output valve rod 5 is fully closed, the sector gear 41 abuts against the trigger end 612 of the other contact switch 61. Through the arrangement of the contact switch 61, when the contact switch 61 contacts the sector gear 41, the output valve rod 5 is in the fully open or fully closed position, so that the monitored information is fed back and the driving device 3 is temporarily controlled to work, so as to prevent the driving device from overrunning and effectively protect the related transmission parts.

[0062] Embodiment two

[0063] On the basis of the structural scheme of embodiment one, the embodiment provides several positioning and installation preferred structures of parts, and the specific embodiments are as follows:

[0064] With reference to Figure 6 , Figure 7The shell 1 is provided with a positioning groove 15, and the end of the first circuit board 7 is clamped into the positioning groove 15. The positioning groove 15 can position the end of the first circuit board 7, prevent the first circuit board 7 from tilting or overturning after being stressed, and provide a more stable mounting position for the first circuit board 7.

[0065] II. Refer to Figure 5 , Figure 8 The base 11 is provided with a plurality of raised blocks 111, and the second circuit board 8 is arranged on the raised blocks 111, so that a lower area 112 is formed between the second circuit board 8 and the bottom surface of the base 11.

[0066] Because the second circuit board 8 is horizontally mounted and the first circuit board 7 is vertically mounted, there is a certain height difference between them. If the second circuit board 8 is not structurally supported and is suspended in the power cavity 2, it may be damaged, such as bending and deforming, after long-term use, resulting in functional failure. The raised blocks 111 effectively support the second circuit board 8, eliminate the defects of the suspended arrangement, prevent the second circuit board 8 from bending and deforming, and enable it to resist greater external impact. On the other hand, the lower area 112 prevents the second circuit board 8 from being attached to the shell 1 in a large area, and the lower area 112 can also be regarded as a heat dissipation area of the second circuit board 8 to improve the heat dissipation efficiency, so that the second circuit board 8 is in a relatively low temperature environment after long-term use, and the use stability is improved.

[0067] III. Refer to Figure 5 , Figure 8 The edge of the power cavity 2 is formed with a wire harness passage 24, the wire harness passage 24 is provided with a wire harness collecting block 241 near the second circuit board 8, the wire harness collecting block 241 is provided with a wire harness collecting hole 242, and the wire harness collecting hole 242 communicates with the lower area 112. The wire harness passage 24 and the wire harness collecting block 241 can provide an area for part of the wire harness in the power cavity 2, so that the internal wire harness is more regular. At the same time, the wire harness can enter the lower area 112 through the wire harness collecting hole 242, so that the wire harness can be connected to the second circuit board 8 through the shortest path, realizing the function of optimizing the circuit.

[0068] IV. Refer to Figure 7 , Figure 8The base 11 is provided with a plurality of limiting blocks 16, the limiting blocks 16 are matched to enclose a limiting area 161, and the contact switch 61 is located in the limiting area 161. The limiting area 161 provides an installation area for the contact switch 61, and the contact switch 61 is contacted with the limiting block 16 and is limited when subjected to external force, so as to prevent the contact switch 61 from being separated from the installation area, thereby providing a stable area, so that the contact switch 61 maintains a relatively stable and accurate positional relationship with the sector gear 41, so as to ensure the accuracy of the contact switch 61 in monitoring and feeding back the position of the output valve rod 5.

[0069] V. Refer to Figure 6 , Figure 8 The base 11 is provided with a plurality of protection columns 17, the protection columns 17 form a protection area 171, and the pin end 611 of the contact switch 61 is at least partially inserted into the protection area 171. The pin end 611 of the contact switch 61 is a relatively long metal rod in structure, and is extremely easy to be bent and deformed when subjected to external force, so as to cause the contact switch 61 to be unable to be normally used. The protection columns 17 are arranged to provide the protection area 171 for accommodating the pin end 611 of the contact switch 61, and the protection columns 17 can provide a blocking effect in a physical area, so as to prevent the pin end 611 from being accidentally contacted by external objects (for example, a user's hand), thereby providing an effective protection effect.

[0070] VI. Refer to Figure 6 The first circuit board 7 is provided with a horizontal connecting groove 71, and the second circuit board 8 is at least partially arranged in the horizontal connecting groove 71. Therefore, the second circuit board 8 and the first circuit board 7 are in a plug-in cooperation, so that the relative positional relationship between the two is closer and more stable, so as to ensure the reliability in long-time use.

[0071] It should be noted that other technical solutions of the utility model belong to the prior art, and therefore, are not described in detail.

[0072] The above is only the preferred embodiment of the utility model, and it should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model.

Claims

1. A highly integrated and ultra-thin actuator, comprising: a housing (1) assembled by a base (11) and a cover plate (12), and a power cavity (2) formed in the housing (1); a driving device (3) arranged in the power cavity (2), and the driving device (3) drivingly connected with a speed reduction transmission mechanism (4); an output valve rod (5) drivingly connected with an output end of the speed reduction transmission mechanism, and an output hole (14) formed in the housing (1), and the output valve rod (5) at least partially passing through the output hole (14) to transmit power outward; an integrated electrical connector (9) arranged in the power cavity (2), and the integrated electrical connector (9) electrically connected with electromechanical accessories outside the housing (1); a position sensor (6) arranged in the power cavity (2), and the position sensor (6) acting on the speed reduction transmission mechanism or / and the output valve rod (5); characterized in that further comprising: a first circuit board (7) vertically arranged in the power cavity (2), and the position sensor (6) assembled on the first circuit board (7); a second circuit board (8) horizontally arranged in the power cavity (2), and the integrated electrical connector (9) assembled on the second circuit board (8) and electrically connected, and the second circuit board (8) electrically connected with the driving device (3); one end of the second circuit board (8) abutting against the first circuit board (7) and electrically connected.

2. The highly integrated ultra-thin actuator according to claim 1, wherein: The output end of the speed reduction transmission mechanism is a sector gear (41), the position sensor (6) is two contact switches (61) arranged in the power cavity (2), the pin end (611) of the contact switch (61) is connected to the first circuit board (7), and the contact switch (61) is in a horizontal state in the power cavity (2), and the sector gear (41) can abut against any one of the contact switches (61).

3. The highly integrated ultra-thin actuator according to claim 2, wherein: When the output valve rod (5) is fully opened, the sector gear (41) abuts against the triggering end (612) of one of the contact switches (61); when the output valve rod (5) is fully closed, the sector gear (41) abuts against the triggering end (612) of the other contact switch (61).

4. The highly integrated ultra-thin actuator of claim 1, wherein: A positioning groove (15) is formed in the housing (1), and the end of the first circuit board (7) is clamped into the positioning groove (15).

5. The highly integrated ultra-thin actuator of claim 1, wherein: A plurality of elevating blocks (111) are protruded on the base (11), and the second circuit board (8) is arranged on the elevating blocks (111) so that a lower area (112) is formed between the second circuit board (8) and the bottom surface of the base (11).

6. The highly integrated ultra-thin actuator according to claim 5, wherein: A wire harness channel (24) is formed at the edge of the power cavity (2), a wire harness block (241) is arranged near the second circuit board (8), a wire harness hole (242) is formed in the wire harness block (241), and the wire harness hole (242) communicates with the lower area (112).

7. The highly integrated ultra-thin actuator according to claim 6, wherein: The power cavity (2) is further provided with a skeleton plate (21), the skeleton plate (21) divides the power cavity (2) into a first chamber (22) and a second chamber (23), the driving device (3) is installed in the first chamber (22), and the speed reduction transmission device, the first circuit board (7), the second circuit board (8), the position sensor (6), the output valve rod (5) and the integrated electric connector (9) are all arranged in the second chamber (23). The wire harness channel (24) is provided with a wire harness hole (221) near the first chamber (22), and the first chamber (22) communicates with the second chamber (23) through the wire harness hole (221).

8. The highly integrated ultra-thin actuator according to claim 2, wherein: The base (11) is provided with a plurality of limiting blocks (16), the limiting blocks (16) are matched to enclose a limiting area (161), and the contact switch (61) is located in the limiting area (161).

9. The highly integrated ultra-thin actuator according to claim 2, wherein: The base (11) is provided with a plurality of protection columns (17), the protection columns (17) form a protection area (171), and a pin end (611) of the contact switch (61) at least partially extends into the protection area (171).

10. The highly integrated ultra-thin actuator according to any one of claims 1-9, wherein: The first circuit board (7) is provided with a horizontal connecting groove (71), and the second circuit board (8) at least partially penetrates the horizontal connecting groove (71).

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