State keeping mechanism, energy-saving system and refrigeration equipment
By cooperating with the abutment and driving parts in the state holding mechanism, the energy waste problem caused by the continuous power-on of the electromagnetic switch is solved, and the electromagnetic switch is maintained in a conductive state without continuous power-on, reducing the electricity cost.
Patent Information
- Application Number
- CN202422285959.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In the prior art, the electromagnetic switch continuously energizes the contact between the dynamic contact and the static contact through the electromagnetic coil, resulting in a large amount of energy consumption and electricity consumption increase.
The state holding mechanism is adopted to achieve continuous contact between the movable contact assembly and the static contact assembly through the cooperation between the abutment member and the driving member. The electromagnetic coil is only energized when the state is switched, and the driving member does not need to be energized continuously during continuous operation.
It reduces the energy loss caused by continuous power on the electromagnetic coil and reduces the power cost of equipment operation.
Smart Images
Figure CN223092777U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of circuit control, and particularly to a state holding mechanism, an energy-saving system, and a refrigeration device. Background Art
[0002] In the prior art, the on-off control of a circuit is often achieved through electromagnetic switches (such as contactors, relays), etc. Specifically, an electromagnetic switch is provided with a moving contact, a static contact, an electromagnetic coil, a magnetic member, a reset member, etc., wherein the moving contact and the static contact are oppositely arranged, and the moving contact can move relative to the static contact; a magnetic member and a reset member are connected to the moving contact. When the electromagnetic coil is energized, the coil generates a magnetic attraction force on the magnetic member, causing the magnetic member and the moving contact to move as a whole towards the static contact, and keeping the moving contact and the static contact in a suction contact state. When the electromagnetic switch controls the circuit to be turned on, when the moving contact and the static contact are kept in a contact suction state, the reset member is in a compressed state. When it is necessary to cut off the circuit, the electromagnetic coil is powered off, the magnetic attraction force of the electromagnetic coil on the magnetic member disappears, and the moving contact and the magnetic member are reset under the elastic force of the reset member, and the moving contact is separated from the static contact.
[0003] In the control module of large equipment, electromagnetic switches are often used to control the circuit. For example, if it is necessary to keep large equipment such as refrigeration equipment running for a long time, it is necessary to ensure that the moving contact and the static contact are always in a suction contact state, that is, the electromagnetic coil needs to be always powered on, which will generate additional energy consumption due to the continuous power-on of the electromagnetic coil, resulting in a large amount of energy consumption and an increase in electricity costs. Summary of the Utility Model
[0004] The present application provides a state holding mechanism, an energy-saving system, and a refrigeration device to solve the technical problem that when the electromagnetic switch in the prior art keeps the moving contact and the static contact in contact by continuously energizing the electromagnetic coil, it will cause a large amount of energy consumption and an increase in electricity costs.
[0005] In a first aspect, the present application provides a state holding mechanism, including:
[0006] An abutting member, which is used to abut against the moving contact assembly of the electromagnetic switch, so that the moving contact assembly always keeps in contact with the static contact assembly in the electromagnetic switch;
[0007] A driving member, which is connected to the abutting member and drives the abutting member to move relative to the moving contact assembly to realize the abutting or separation between the abutting member and the moving contact assembly.
[0008] Optionally, the abutting member includes an abutting end that is matched with the moving contact assembly, and an abutting surface is provided at one end of the abutting end facing the moving contact assembly.
[0009] Optionally, the abutting surface is a plane or a curved surface; the curved surface is a hemispherical surface or an ellipsoidal surface.
[0010] Optionally, the abutting member further includes a guiding cylinder coaxially arranged with the abutting end. One end of the abutting end away from the moving contact assembly is slidably arranged inside the guiding cylinder. An elastic member is arranged inside the guiding cylinder, and the elastic member always has a tendency to move the abutting member towards the moving contact assembly.
[0011] Optionally, a limiting portion is arranged on the guiding cylinder, and the limiting portion is used to prevent the abutting end from detaching from the guiding cylinder.
[0012] Optionally, the limiting portion is arranged at one end of the guiding cylinder, and a detachable end cap is arranged at the other end of the guiding cylinder.
[0013] Optionally, the driving member drives the abutting member to swing relative to the moving contact assembly.
[0014] As another alternative technical solution, the driving member drives the abutting member to slide in a linear direction.
[0015] Optionally, the abutting member includes a first connecting section and a second connecting section connected at an angle.
[0016] In a second aspect, the present application provides an energy-saving system, which includes the state-holding mechanism provided in the first aspect of the present application, and further includes an electromagnetic switch. The electromagnetic switch includes a moving contact assembly, a static contact assembly, an electromagnetic coil, and a reset member. The moving contact assembly and the static contact assembly are relatively movably arranged. A magnetic member corresponding to the electromagnetic coil is arranged on the moving contact assembly, and the reset member always has a tendency to move the moving contact assembly away from the static contact assembly.
[0017] Optionally, the moving contact assembly includes a moving contact housing, and an abutting portion matching the abutting member is arranged on the moving contact housing.
[0018] Optionally, a guiding portion communicating with the abutting portion is further arranged on the moving contact housing.
[0019] Optionally, the guiding portion includes an arc-shaped channel or a linear channel.
[0020] Optionally, the energy-saving system further includes an electric control box, and both the electromagnetic switch and the state-holding mechanism are arranged inside the electric control box.
[0021] In a third aspect, the present application provides a refrigeration device, which includes the energy-saving system provided in the second aspect of the present application.
[0022] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:
[0023] The state holding mechanism provided by the embodiment of the present application is provided with an abutting member connected to a driving member. The driving member can drive the abutting member to move relative to the moving contact assembly to achieve abutment or separation between the abutting member and the moving contact assembly. When the electromagnetic switch needs to be turned on, first, the electromagnetic coil inside the electromagnetic switch is energized. The moving contact assembly moves towards the static contact assembly under the action of electromagnetic force until the moving contact assembly and the static contact assembly reach the state of attracting and contacting. Then, the driving member drives the abutting member to move towards the moving contact assembly and makes the abutting member abut on the moving contact assembly. Subsequently, the electromagnetic coil and the driving member are powered off. Due to the limitation of the abutting member, the moving contact assembly cannot be separated from the static contact assembly under the action of the reset member. Thus, under the abutting action of the abutting member, the moving contact assembly and the static contact assembly can always be kept in contact, and further, the electromagnetic switch is always in the on state. When the electromagnetic switch needs to be turned off, the electromagnetic coil and the driving member are energized. The driving member drives the abutting member away from the moving contact assembly to achieve the avoidance of the abutting member to the moving contact assembly. Then, the electromagnetic coil is powered off, and the moving contact assembly is separated from the static contact assembly under the elastic force of the reset member. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.
[0025] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.
[0027] Figure 1 It is a schematic structural diagram of the energy-saving system provided by the embodiment of the present application;
[0028] Figure 2 It is a schematic diagram of the cooperation between the abutting end and the moving contact assembly provided by the embodiment of the present application Figure 1 ;
[0029] Figure 3 It is a schematic diagram of the cooperation between the abutting end and the moving contact assembly provided by the embodiment of the present application Figure 2 ;
[0030] Figure 4 It is a partial cross-sectional view of the abutting member provided by the embodiment of the present application;
[0031] Figure 5 It is a top view of the energy-saving system provided by the embodiment of the present application;
[0032] Figure 6 It is an exploded view of the electromagnetic switch provided by the embodiment of the present application;
[0033] Figure 7 It is an energy-saving control flow chart of the refrigeration equipment provided by the embodiment of the present application.
[0034] Explanation of reference numerals:
[0035] 1. Contact member; 11. Contact end; 111. Contact surface; 112. Limiting section; 12. Guide cylinder; 121. Limiting part; 122. End cover; 123. Cylinder wall; 13. Elastic member; 14. First connecting section; 15. Second connecting section;
[0036] 2. Driving member;
[0037] 3. Electromagnetic switch; 31. Moving contact assembly; 311. Moving contact housing; 3111. Contact part; 3112. Guide part; 312. Moving contact; 32. Static contact assembly; 33. Switch housing. Detailed implementation manners
[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0039] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0040] For ease of description, spatial relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.
[0041] In order to solve the technical problem in the prior art that when the electromagnetic switch 3 keeps the moving contact and the static contact in contact by energizing the electromagnetic coil, it will cause a large amount of energy consumption and an increase in electricity cost, the present application provides a state holding mechanism, an energy-saving system, and a refrigeration device, which can always press the moving contact assembly 31 against the static contact assembly 32 through the abutting member 1, so that the moving contact assembly 31 and the static contact assembly 32 always maintain a contact state, and the electromagnetic switch 3 is always in a conducting state. During this process, neither the electromagnetic coil inside the electromagnetic switch 3 nor the driving member 2 in the state holding mechanism needs to be always energized, which can greatly reduce the energy loss for realizing state holding, thereby reducing the electricity cost during the operation of the device.
[0042] Please refer to Figures 1 to 7 , the first aspect of the embodiment of the present application provides a state holding mechanism, including an abutting member 1 and a driving member 2, as Figure 1 shown.
[0043] The abutting member 1 is used to abut against the moving contact assembly 31 of the electromagnetic switch 3, so that the moving contact assembly 31 always maintains a contact state with the static contact assembly 32 in the electromagnetic switch 3, thereby making the electromagnetic switch 3 always in a conducting state.
[0044] The driving member 2 is connected to the abutting member 1 and drives the abutting member 1 to move relative to the moving contact assembly 31 to realize the abutting or separation between the abutting member 1 and the moving contact assembly 31, so as to cooperate with the electromagnetic switch 3 to maintain or disconnect the conducting state of the electromagnetic switch 3.
[0045] Specifically, when the electromagnetic switch 3 needs to be turned on, first, the electromagnetic coil inside the electromagnetic switch 3 is energized. The moving contact assembly 31 moves towards the static contact assembly 32 under the action of electromagnetic force until the moving contact assembly 31 and the static contact assembly 32 reach the state of suction contact. Then, the driving member 2 drives the abutting member 1 towards the moving contact assembly 31 and makes the abutting member 1 abut on the moving contact assembly 31. Subsequently, the electromagnetic coil and the driving member 2 are de-energized. Due to the restriction of the abutting member 1, the moving contact assembly 31 cannot be separated from the static contact assembly 32 under the action of the reset member. Thus, under the abutting action of the abutting member 1, the moving contact assembly 31 and the static contact assembly 32 can always be kept in contact, and further, the electromagnetic switch 3 is always in the on state.
[0046] When the electromagnetic switch 3 needs to be turned off, the electromagnetic coil and the driving member 2 are energized. The driving member 2 drives the abutting member 1 away from the moving contact assembly 31 to realize the avoidance of the abutting member 1 to the moving contact assembly 31. During the process of the abutting member 1 moving away from the moving contact assembly 31, the energization of the electromagnetic coil can keep the moving contact assembly 31 stationary to avoid the movement of the moving contact assembly 31 interfering with the movement of the abutting member 1. Then the electromagnetic coil is de-energized, and the moving contact assembly 31 is separated from the static contact assembly 32 under the elastic force of the reset member, and the electromagnetic switch 3 is turned off.
[0047] It should be noted that by setting the state holding mechanism, the electromagnetic coil only needs to be energized when the state of the electromagnetic switch 3 is switched, and there is no need to continuously keep the energized state during the continuous operation of the device, which can greatly reduce the energy consumption generated by the continuous energization of the electromagnetic coil; the driving member 2 in the state holding mechanism also only needs to be energized when the state is switched, and there is no need to continuously keep the energized state during the continuous operation of the device, which can avoid additional energy consumption caused by adding the state holding mechanism.
[0048] In some embodiments of the present application, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The abutting member 1 includes an abutting end 11 that is arranged to match the moving contact assembly 31, and can cooperate with the moving contact assembly 31 to achieve precise limit; one end of the abutting end 11 facing the moving contact assembly 31 is provided with an abutting surface 111, which can be used to realize the abutting limit fit between the abutting member 1 and the moving contact assembly 31.
[0049] In some embodiments of the present application, please refer to Figure 1 and Figure 2 The abutting surface 111 is a plane; a surface contact can be realized between the plane and the moving contact assembly 31, which is beneficial to improving the abutting stability of the abutting end 11 to the moving contact assembly 31.
[0050] In some other embodiments of the present application, please refer to Figure 3 and Figure 4, the abutting surface 111 is a curved surface, and the curved surface is a hemispherical surface or an ellipsoidal surface. The guiding can be realized through the contact between the curved surface and the edge of the moving contact assembly 31 and then through the hemispherical surface or the ellipsoidal surface, so that the contact point between the curved surface and the moving contact assembly 31 is adjusted to the protruding point of the curved surface (i.e., Figure 3 and Figure 4 the lowest point of the curved surface shown).
[0051] It should be noted that when the abutting member 1 is a rigid structural member, in order to achieve precise abutment between the abutting member 1 and the moving contact assembly 31, in the moving direction of the moving contact assembly 31, the preset distance between the abutting surface 111 and the moving contact assembly 31 needs to be precisely controlled. The distance should not be too large. Otherwise, after the electromagnetic coil is powered off, the moving contact assembly 31 will move a distance corresponding to the distance in the direction away from the static contact assembly 32 under the action of the reset member, which may cause the moving contact assembly 31 to separate from the static contact assembly 32 when the moving contact assembly 31 abuts against the abutting member 1. Therefore, this distance needs to be set small enough, preferably between 0 - 1 mm, which undoubtedly brings great difficulty to the assembly accuracy of the state holding mechanism.
[0052] To solve the above problems, in some embodiments of the present application, please refer to Figure 4 , the abutting member 1 further includes a guiding cylinder 12 coaxially arranged with the abutting end 11. One end of the abutting end 11 away from the moving contact assembly 31 is slidably arranged inside the guiding cylinder 12, so that the abutting end 11 can telescopically move relative to the guiding cylinder 12, thereby realizing the distance adjustment between the abutting end 11 and the moving contact assembly 31. An elastic member 13 is arranged inside the guiding cylinder 12, and the elastic member 13 always has a tendency to move the abutting member 1 towards the moving contact assembly 31. The abutting end 11 can be pressed against the moving contact assembly 31 through the elastic force of the elastic member 13 to prevent the moving contact assembly 31 from separating from the static contact assembly 32. Since the elastic member 13 has the ability to deform, the relative position adjustment between the abutting end 11 and the moving contact assembly 31 can be realized, and the installation accuracy requirements for the state holding mechanism can be reduced.
[0053] It should be noted that the elastic member 13 inside the guiding cylinder 12 is in a compressed state, and the elastic force exerted by the elastic member 13 on the abutting end 11 is greater than the elastic force exerted by the reset member on the moving contact assembly 31, which can prevent the moving contact assembly 31 from moving in the direction away from the static contact assembly 32. Under the action of the elastic member 13, the end of the abutting end 11 with the abutting surface 111 extends out of the guiding cylinder 12, and when the abutting end 11 is separated from the moving contact assembly 31, the lowest point of the abutting end 11 is lower than the abutting portion 3111 on the moving contact assembly 31, so that there is a compression margin when the abutting end 11 contacts the moving contact assembly 31. Furthermore, after the abutting end 11 is abutted and the elastic member 13 is compressed and the abutting end 11 moves upward by a certain distance, it can still keep in contact and abutting state with the moving contact assembly 31, as shown in Figure 4As shown. At this time, it is preferable that the abutting surface 111 is a curved surface, and the contact point between the abutting surface 111 and the moving contact assembly 31 can be adjusted through the curved surface until the lowest point of the curved surface abuts against the top of the moving contact assembly 31, as Figure 4 shown.
[0054] In some embodiments of the present application, please refer to Figure 4 , a limiting portion 121 is provided on the guiding cylinder 12. The limiting portion 121 is used to prevent the abutting end 11 from detaching from the guiding cylinder 12 under the elastic force of the elastic member 13, avoiding the failure of the state holding mechanism. Specifically, a limiting section 112 matching the limiting portion 121 is provided on the abutting end 11. The limiting section 112 is slidably arranged with the cylinder wall 123 of the guiding cylinder 12. A through hole is provided in the middle of the limiting portion 121, so that one end of the abutting end 11 with the abutting surface 111 can extend out; and the inner diameter of the limiting portion 121 is smaller than the inner diameter of the cylinder wall 123, and the diameter of the limiting section 112 is larger than the inner diameter of the limiting portion 121, which can prevent the limiting section 112 of the abutting end 11 from detaching from the limiting portion 121.
[0055] In some embodiments of the present application, in order to prevent the abutting end 11 from being deflected inside the guiding cylinder 12 when receiving the reaction force of the moving contact assembly 31, the length of the limiting section 112 is greater than 1 / 3 of the length of the cylinder wall 123, which can increase the sliding fit area between the limiting section 112 and the inner side surface of the cylinder wall 123, so that the axis of the abutting end 11 always coincides with the axis of the guiding cylinder 12.
[0056] In some embodiments of the present application, please refer to Figure 4 , in order to facilitate the assembly of the abutting end 11 and the elastic member 13 inside the guiding cylinder 12, the limiting portion 121 is arranged at one end of the guiding cylinder 12, and a detachable end cap 122 is provided at the other end of the guiding cylinder 12. After removing the end cap 122, the abutting end 11 and the elastic member 13 can be sequentially placed into the guiding cylinder 12, so that the abutting end 11 extends out from one end of the guiding cylinder 12, and then the end cap 122 is connected to the other end of the guiding cylinder 12, so that the axial two ends of the elastic member 13 respectively abut against the limiting section 112 and the end cap 122.
[0057] It should be noted that the connection between the end cap 122 and the cylinder wall 123 can be realized by means of threaded connection, snap connection or screw connection, etc., all of which can achieve the purpose of the present application.
[0058] In some embodiments of the present application, please refer to Figure 1 and Figure 5 , the driving member 2 drives the abutting member 1 to swing relative to the moving contact assembly 31, Figure 5 the arrow direction inFigure 5 When the driving member 2 drives the abutting member 1 to swing counterclockwise, the abutting member 1 can gradually approach the moving contact assembly 31 until the abutting end 11 abuts against the top of the moving contact assembly 31, so as to facilitate the continuous conduction of the electromagnetic switch 3. When the driving member 2 drives the abutting member 1 along Figure 5 When the driving member 2 drives the abutting member 1 to swing clockwise, the abutting member 1 can gradually move away from the moving contact assembly 31, so as to release the limiting effect of the abutting member 1 on the moving contact assembly 31, and then the separation of the moving contact assembly 31 and the static contact assembly 32 can be realized, and the electromagnetic switch 3 is disconnected.
[0059] It should be noted that, in order to avoid relative interference between the abutting member 1 and the moving contact assembly 31, when the moving direction of the moving contact assembly 31 is the vertical direction, the swinging direction of the abutting member 1 is the swing in the horizontal plane, and at this time, the swinging axis direction of the abutting member 1 is parallel to the vertical direction.
[0060] In some embodiments of the present application, the driving member 2 can be a hydraulic motor or a motor and other components. Preferably, the driving member 2 is a stepping motor, which can realize the precise control of the swing of the abutting member 1, and is beneficial to realize the action accuracy and reliability of the abutting member 1.
[0061] In some other embodiments of the present application, the driving member 2 drives the abutting member 1 to slide in a straight line direction, and the driving member 2 can be a linear actuator such as a cylinder or a hydraulic cylinder. Specifically, the abutting member 1 is connected to the telescopic end (such as a piston rod, etc.) of the driving member 2. When the driving member 2 extends, the abutting member 1 can gradually approach the moving contact assembly 31 until the abutting end 11 abuts against the top of the moving contact assembly 31, so as to facilitate the continuous conduction of the electromagnetic switch 3. When the driving member 2 retracts, the abutting member 1 can gradually move away from the moving contact assembly 31, so as to release the limiting effect of the abutting member 1 on the moving contact assembly 31, and then the separation of the moving contact assembly 31 and the static contact assembly 32 can be realized, and the electromagnetic switch 3 is disconnected.
[0062] It should be noted that, in order to avoid relative interference between the abutting member 1 and the moving contact assembly 31, when the moving direction of the moving contact assembly 31 is the vertical direction, the telescopic direction of the driving member 2 is the horizontal direction.
[0063] In the above embodiments, since the driving member 2 is a linear actuator, in order to meet the telescopic stroke requirements of the abutting member 1 and the layout requirements in the length direction of the driving member 2, the size of the state holding mechanism in the horizontal direction will be large, thereby increasing the overall space occupancy rate of the state holding mechanism and the electromagnetic switch 3. Therefore, the present application preferably adopts the method of driving the abutting member 1 to swing by the driving member 2 to realize the movement of the abutting member 1, and the driving member 2 can be arranged on one side of the electromagnetic switch 3, reducing the overall space occupancy rate of the state holding mechanism and the electromagnetic switch 3.
[0064] In some embodiments of the present application, please refer toFigures 1 to 5 Since the axial direction of the abutting end 11 is not consistent with the telescopic direction of the driving member 2 or the rotation axis direction of the output shaft, the abutting member 1 includes a first connecting section 14 and a second connecting section 15 which are angularly connected to achieve the transmission connection between the abutting end 11 and the driving member 2.
[0065] Specifically, when the driving member 2 drives the abutting member 1 to swing, the output shaft of the driving member 2 is parallel to the axis of the abutting end 11. At this time, the first connecting section 14 is a horizontal connecting section, and the second connecting section 15 is a vertical connecting section. One end of the first connecting section 14 is perpendicularly connected to the abutting end 11 (in the case where the guiding cylinder 12 and the elastic member 13 are not provided) or the guiding cylinder 12, the second end of the first connecting section 14 is perpendicularly connected to the second connecting section 15, and the second connecting section 15 is coaxially connected to the output shaft of the driving member 2. The first connecting section 14 and the abutting end 11 can be driven to swing by the synchronous rotation of the second connecting section 15 and the output shaft, so as to realize the abutting or separation between the abutting end 11 and the moving contact assembly 31.
[0066] When the driving member 2 drives the abutting member 1 to slide in a straight line direction, the axis of the abutting end 11 is perpendicular to the telescopic direction of the driving member 2. At this time, the first connecting section 14 is a horizontal connecting section, and the second connecting section 15 is a vertical connecting section. The abutting end 11 (in the case where the guiding cylinder 12 and the elastic member 13 are not provided) or the guiding cylinder 12 is configured as the second connecting section 15. One end of the first connecting section 14 is perpendicularly connected to the second connecting section 15, and the other end of the first connecting section 14 is coaxially connected to the telescopic end of the driving member 2. The first connecting section 14 and the abutting end 11 can be driven to slide in the horizontal direction by the telescopic movement of the driving member 2, so as to realize the abutting or separation between the abutting end 11 and the moving contact assembly 31.
[0067] Please refer to Figures 1 to 7 In the second aspect of the embodiments of the present application, an energy-saving system is provided, which includes the state holding mechanism in the above embodiments, and further includes an electromagnetic switch 3. The electromagnetic switch 3 includes a moving contact assembly 31, a static contact assembly 32, an electromagnetic coil and a reset member. The moving contact assembly 31 and the static contact assembly 32 are relatively movably arranged. As Figure 6 shown, a magnetic member (not shown in the figure) corresponding to the electromagnetic coil is provided on the moving contact assembly 31, and the reset member (not shown in the figure) always has a tendency to move the moving contact assembly 31 away from the static contact assembly 32. The on-off control of the circuit can be realized through the electromagnetic switch 3, and the state holding mechanism can be used to maintain the contact state between the moving contact assembly 31 and the static contact assembly 32, so that the energy-saving system does not need to keep the electromagnetic coil continuously powered on, and the energy consumption and power consumption cost of the energy-saving system can be reduced.
[0068] In some embodiments of the present application, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5and Figure 6 The moving contact assembly 31 includes a moving contact housing 311. The moving contact housing 311 is provided with an abutting portion 3111 that is arranged to match the abutting member 1 and can be used to contact the abutting surface 111 of the abutting end 11, so as to realize the abutting and limiting effect of the abutting member 1 on the moving contact assembly 31.
[0069] In some embodiments of the present application, the moving contact housing 311 is made of an insulating material, which can prevent electrical conduction between the moving contact assembly 31 and the abutting member 1 when the moving contact housing 311 is connected to the abutting member 1, affecting the normal operation of the electromagnetic switch 3.
[0070] In some embodiments of the present application, the moving contact 312 is fixedly arranged on the moving contact housing 311, and the moving contact housing 311 can move relative to the switch housing 33, so that the moving contact 312 contacts or separates from the static contact assembly 32, as Figure 6 shown.
[0071] In some embodiments of the present application, please refer to Figure 5 and Figure 6 The moving contact housing 311 is further provided with a guiding portion 3112 communicating with the abutting portion 3111, which is used to guide the abutting end 11 from the edge of the moving contact housing 311 to the abutting portion 3111 of the moving contact housing 311.
[0072] Specifically, the guiding portion 3112 may include a guiding curved surface extending from the edge of the moving contact housing 311 to the abutting portion 3111, as Figure 6 shown. During the process of the abutting surface 111 of the abutting end 11 contacting the guiding curved surface, the elastic member 13 inside the guiding cylinder 12 can be compressed, so that when the abutting end 11 moves to the abutting portion 3111, it can be in a state of close contact with the abutting portion 3111. Under the action of the elastic member 13, the moving contact assembly 31 can always be pressed against the static contact assembly 32 after the electromagnetic coil is powered off.
[0073] In some embodiments of the present application, please refer to Figure 5 When the driving member 2 drives the abutting member 1 to swing, the guiding portion 3112 includes an arc-shaped channel. When the abutting member 1 moves on the moving contact housing 311, it can be guided by the arc-shaped side walls on both sides of the arc-shaped channel.
[0074] In some other embodiments of the present application, when the driving member 2 drives the abutting member 1 to slide in a straight line direction, the guiding portion 3112 includes a straight channel, and the length direction of the straight channel extends along the telescopic direction of the driving member 2. When the abutting member 1 moves on the moving contact housing 311, it can be guided by the vertical side walls on both sides of the straight channel.
[0075] In some embodiments of the present application, the side wall of the arc-shaped channel or the side wall of the straight channel is vertically connected to the guiding surface of the guiding portion 3112.
[0076] In some embodiments of the present application, the energy-saving system further includes an electric control box. The electromagnetic switch 3 and the state holding mechanism are both disposed inside the electric control box. The electromagnetic switch 3 and the state holding mechanism can be integrally arranged inside the same box body, and the electromagnetic switch 3 and the state holding mechanism can also be integrally protected by the electric control box body.
[0077] In the above embodiments, the energy-saving system can be used as a control module with energy-saving effects. This control module (i.e., the energy-saving system) can be applied to various electrical appliances to perform energy-saving control on the start and stop of the entire electrical appliance or components in the electrical appliance.
[0078] In the prior art, the modular machine is a central air conditioner that uses air as the cold and heat source and water as the heat transfer medium. It can be used for refrigeration in summer and heating in winter. Therefore, the modular machine is widely used in many venues such as supermarkets, hotel restaurants, hotels, shopping malls, office buildings, and factories. The energy saving of the units in the modular machine is also becoming increasingly important. When the unit is running, the electromagnetic coil of the control device (i.e., the electromagnetic switch 3) needs to consume a relatively large amount of energy to maintain the suction state. Specifically, when a unit includes 4 compressor control modules, the electromagnetic switch 3 in a control module requires at least 20 W of holding power (i.e., the power required for the electromagnetic coil to be continuously energized), and each unit needs to consume at least 80 W of electrical energy per hour. Since the modular machine is a commercial mainstream product in the market, if calculated according to the annual sales volume of 10,000 units, the energy consumption for maintaining the coil suction of 10,000 modular machines within 1 hour is 800 degrees of electricity. Calculated according to 24 hours a day and 365 days a year, the energy consumption for the electromagnetic coil to be continuously energized within 1 year is as high as 7 million degrees of electricity, and this consumption is very large.
[0079] To solve the above problems, a third aspect of the present application provides a refrigeration device, including the energy-saving system in the above embodiments. The contact state of the moving contact assembly 31 and the static contact assembly 32 can be maintained through the state holding mechanism in the energy-saving system. During the continuous operation of the refrigeration device, it is not necessary to continuously energize the electromagnetic coil and the driving member 2, which can greatly reduce the holding power required by the unit, thereby reducing the energy consumption during the continuous operation of the unit and reducing the power consumption cost of the refrigeration device.
[0080] As a specific embodiment of the present application, the refrigeration device is a modular machine, and the energy-saving system is configured as a compressor control module inside the modular machine, which can be used to realize the on-off control and state holding of the compressor.
[0081] Please refer to Figures 1 to 7 , in some embodiments of the present application, the control method of the above energy-saving system is as follows:
[0082] Step 1: Start and run the unit in the refrigeration equipment;
[0083] Step 2: The control main board sends out a signal to start the compressor. The electromagnetic switch 3 in the compressor control module closes, the electromagnetic coil is energized to generate magnetic attraction, and the moving contact assembly 31 is in contact with the static contact assembly 32;
[0084] Step 3: Taking Figure 5 the shown position as the initial position of the abutting end 11, detect whether the abutting end 11 is at the set initial position; when the abutting end 11 is not at the initial position, the driving member 2 acts to return the abutting end 11 to the initial position, and then the number of steps of the driving member 2 is cleared; when the abutting end 11 is at the initial position (or after returning to the initial position), the driving member 2 acts to drive the abutting end 11 to run to the abutting portion 3111 of the moving contact housing 311;
[0085] Step 4: The abutting end 11 abuts tightly against the abutting portion 3111 of the moving contact housing 311, the electromagnetic coil of the electromagnetic switch 3 in the compressor control module is de-energized, and the driving member 2 is de-energized;
[0086] Step 5: Detect whether the unit has reached the set temperature. When the unit has not reached the set temperature, maintain the current state and the unit continues to run. When the unit has reached the set temperature or is manually stopped, the driving member 2 and the electromagnetic coil are energized. The driving member 2 acts to drive the abutting end 11 back to the initial position. The driving member 2 and the electromagnetic coil are de-energized, the moving contact assembly 31 and the static contact assembly 32 are separated, and the unit stops running.
[0087] Through the above energy-saving system and control method, the unit only needs to energize the electromagnetic coil and the driving member 2 during state switching, reducing the energy consumption generated by the continuous energization of the electromagnetic coil of the unit, reducing the operating cost of the unit, and improving the energy efficiency of the unit.
[0088] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of performance is clearly indicated. It should also be understood that alternative or additional steps may be used.
[0089] Although terms such as first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply order or sequence when used herein. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.
[0090] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.
Claims
1. A state holding mechanism, characterized in that, Comprising: A contact member (1) for contacting with the moving contact assembly (31) of the electromagnetic switch (3) so that the moving contact assembly (31) always remains in contact with the static contact assembly (32) in the electromagnetic switch (3); A driving member (2) connected to the contact member (1) to drive the contact member (1) to move relative to the moving contact assembly (31) for realizing the contact or separation between the contact member (1) and the moving contact assembly (31).
2. The state maintaining mechanism according to claim 1, characterized in that, The contact member (1) includes a contact end (11) arranged to match the moving contact assembly (31), and a contact surface (111) is provided at one end of the contact end (11) facing the moving contact assembly (31).
3. The state maintaining mechanism according to claim 2, wherein The contact surface (111) is a plane or a curved surface; the curved surface is a hemispherical surface or an ellipsoidal surface.
4. The state maintaining mechanism according to claim 2, characterized in that The contact member (1) further includes a guiding cylinder (12) coaxially arranged with the contact end (11). One end of the contact end (11) away from the moving contact assembly (31) is slidably arranged inside the guiding cylinder (12). An elastic member (13) is provided inside the guiding cylinder (12), and the elastic member (13) always has a tendency to move the contact member (1) towards the moving contact assembly (31).
5. The state maintaining mechanism according to claim 4, characterized in that, A limiting portion (121) is provided on the guiding cylinder (12) for preventing the contact end (11) from detaching from the guiding cylinder (12).
6. The state holding mechanism according to claim 5, characterized in that, The limiting portion (121) is arranged at one end of the guiding cylinder (12), and a detachable end cap (122) is provided at the other end of the guiding cylinder (12).
7. The state holding mechanism according to any one of claims 1 to 6, characterized in that, The driving member (2) drives the contact member (1) to swing relative to the moving contact assembly (31).
8. The state maintaining mechanism according to any one of claims 1 to 6, characterized in that The driving member (2) drives the contact member (1) to slide in a linear direction.
9. The state holding mechanism according to any one of claims 1 to 6, characterized in that The contact member (1) includes a first connecting section (14) and a second connecting section (15) connected at an angle.
10. An energy-saving system, comprising the state-holding mechanism according to any one of claims 1 to 9, characterized in that, It further includes an electromagnetic switch (3), which includes a moving contact assembly (31), a static contact assembly (32), an electromagnetic coil and a reset member. The moving contact assembly (31) is arranged to move relative to the static contact assembly (32). A magnetic member corresponding to the electromagnetic coil is provided on the moving contact assembly (31), and the reset member always has a tendency to move the moving contact assembly (31) away from the static contact assembly (32).
11. The energy-saving system according to claim 10, wherein, The moving contact assembly (31) includes a moving contact housing (311), and a contact portion (3111) arranged to match the contact member (1) is provided on the moving contact housing (311).
12. The energy-saving system according to claim 11, wherein, A guiding portion (3112) communicating with the contact portion (3111) is further provided on the moving contact housing (311).
13. The energy-saving system according to claim 12, characterized in that, The guiding portion (3112) includes an arc-shaped channel or a linear channel.
14. The energy-saving system according to any one of claims 10 to 13, characterized in that, It further includes an electric control box, and the electromagnetic switch (3) and the state holding mechanism are both arranged inside the electric control box.
15. A refrigeration device, characterized in that, Comprising the energy-saving system according to any one of claims 10 to 14.