Pendant switched mode power supply and method of using the same

Abstract

The present application belongs to the technical field of switching power supply, and particularly relates to a switching power supply which is ejected when overheating, and more particularly to a suspension type switching power supply and a use method thereof, wherein the suspension type switching power supply comprises a suspension plugboard, and a power supply body with a base in which a slot is formed for the insertion of the suspension plugboard; wherein the suspension plugboard is provided with plug-in blocks on both sides in a sliding manner; the suspension plugboard is further provided with elastic trigger members; and the elastic trigger members are provided with heat shrink members at the positions corresponding to the plug-in blocks. When the temperature of the power supply body rises to exceed the limit working temperature of the power supply body, the heat shrink members automatically shrink, triggering the plug-in blocks to shrink, so that the elastic trigger members are ejected, the power supply body is ejected from the suspension position, physical isolation is achieved, and the power supply body is prevented from continuing to heat up and igniting surrounding equipment after overheating. Meanwhile, a pure mechanical structure is adopted, the aging or malfunction problems of electronic sensors are avoided, and the failure rate and maintenance frequency are reduced.

Description

Technical Field

[0001] This invention belongs to the field of switching power supply technology, specifically relating to a structure that ejects a switching power supply when it overheats, and more particularly to a suspended switching power supply and its usage method. Background Technology

[0002] Suspended switching power supplies are widely used in low-voltage boxes, computer rooms and other scenarios. The suspended installation method saves space and facilitates maintenance.

[0003] In related technologies, the suspension and fixing of switching power supplies often employs mechanical clips, screw fastenings, or simple plug-in structures, such as fixing the power supply body through the cooperation of a plug-in plate and a slot. When the power supply body's temperature rises due to prolonged operation or overload, it typically relies on built-in thermal protection circuits (such as temperature sensors or fuses) to cut off the power. At this time, the power supply body continues to accumulate heat. The fixed suspension method means that in the event of a fire, the switching power supply cannot be quickly removed from its original position, thus potentially igniting nearby equipment.

[0004] Therefore, how to prevent the overheating and fire of the switching power supply from igniting other equipment is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one suspended switching power supply and its usage method.

[0007] In a first aspect, embodiments of this disclosure provide a suspended switching power supply, comprising: Hanging inserts; The power supply body has a base, and the base has a slot for inserting the hanging plug. The suspension plate has plug-in blocks slidably arranged on both sides; The suspension plate is also provided with an elastic trigger element; The elastic trigger is provided with a heat shrink fitting at the corresponding mating point of the plug block; When the suspension plate is inserted into the slot, the elastic trigger is squeezed and rotates, thereby pulling the two plug blocks back through the heat shrink member. When the push rod of the elastic trigger is squeezed to the limit position, the pull on the plug blocks is released, so that the plug blocks are inserted into the plug holes on both sides of the slot. When the temperature of the power supply body rises, causing the heat shrink component to retract, the two plug blocks are pulled back, and the power supply body pops out under the push of the elastic trigger, disengaging from the suspended position.

[0008] In one optional embodiment, a strip-shaped mounting hole is provided in the middle of the suspension plate; After being inserted from the end of the suspension plate, the elastic trigger extends into the strip-shaped mounting hole; The heat-shrinkable component is disposed at one end of the elastic trigger that extends into the strip-shaped mounting hole.

[0009] In one alternative embodiment, the resilient trigger includes: A sliding tube, one end of which is inserted from the end of the suspension plate, extends into the strip-shaped mounting hole of the suspension plate; A rotating tube is sleeved on the sliding tube and is disposed in the strip-shaped mounting hole, and the rotating tube is rotatably connected to the suspension plate; A push rod is disposed inside the sliding tube; The first return spring has one end connected to the bottom of the push rod and the other end connected to the bottom wall of the rotating tube; The outer wall of the sliding tube is provided with a guide slider; A guide groove is provided on the inner wall of the rotating tube at the fitting point with the guide slider; When the suspension plate is inserted into the slot, the elastic trigger is squeezed and rotated, that is, it squeezes the rotating tube and the push rod to compress the first reset spring. At the same time, through the cooperation of the guide groove and the guide slider, the rotating tube is driven to rotate, so as to pull the two plug blocks back through the heat shrink member.

[0010] In one optional embodiment, the guide groove includes a spiral guide section and a circular guide section; The spiral guide section is connected to the circular guide section; When the guide slider slides along the spiral guide section, it drives the rotating tube to rotate, thereby pulling the two plug blocks back through the heat shrink component; when the guide slider slides to the circular guide section, it releases the pull on the plug blocks, thereby allowing the plug blocks to be inserted into the plug holes on both sides of the slot.

[0011] In one alternative embodiment, the two side walls of the suspension plate are provided with sliding notches; The sidewall of the plug block is connected to the sliding notch by a second return spring; When the push rod of the elastic trigger is pressed to the limit position, the pull on the plug block is released. At this time, the plug block is reset by the second reset spring, so that the plug block is inserted into the plug holes on both sides of the slot.

[0012] In one alternative embodiment, the heat-shrinkable element is a liquid crystal elastomer rope; One end of the liquid crystal elastomer rope is connected to the elastic trigger, and the other end is connected to the plug block; When the suspension plate is inserted into the slot, the elastic trigger is compressed and rotates, thereby pulling the two plug blocks back through the heat shrink member, that is: The elastic trigger is squeezed and rotates, thereby causing the liquid crystal elastomer rope to wrap around the elastic trigger, which in turn pulls the two plug blocks back.

[0013] In one optional embodiment, the thermal deformation temperature of the liquid crystal elastomer rope is T1; The maximum operating temperature of the power supply body is T2; Where T1 is greater than or equal to T2, and the difference between T1 and T2 is less than 5℃.

[0014] In one alternative embodiment, a stop is provided at the top of the slot; When the suspension plate is inserted into the slot, the stop block abuts against the elastic trigger to compress the elastic trigger, thereby causing the elastic trigger to rotate.

[0015] Secondly, this disclosure also provides a method of using a suspended switching power supply as described above, the method comprising: The hanging plug is fixed to the side wall of the low-voltage box; The power supply unit is connected to the hanging socket by external force; When the temperature of the power supply body rises and the heat shrink parts retract, the two plug blocks are pulled back, and the power supply body pops out from the bottom of the low-voltage box under the push of the elastic trigger.

[0016] In one alternative embodiment, the heat-shrinkable element is a liquid crystal elastomer rope; One end of the liquid crystal elastomer rope is connected to the elastic trigger, and the other end is connected to the plug block; When the suspension plate is inserted into the slot, the elastic trigger is compressed and rotates, thereby pulling the two plug blocks back through the heat shrink member, that is: The elastic trigger is squeezed and rotates, thereby causing the liquid crystal elastomer rope to wrap around the elastic trigger, which in turn pulls the two plug blocks back.

[0017] The beneficial effects of this invention are that the suspended switching power supply and its usage method utilize a heat-shrinkable component that automatically retracts when the power supply body temperature rises above its maximum operating temperature. This triggers the retraction of the plug block, causing the elastic trigger to pop out, thus ejecting the power supply body from its suspended position. This achieves physical isolation and prevents the power supply body from overheating and igniting surrounding equipment. Simultaneously, the purely mechanical structure avoids the problems of electronic sensor aging or malfunction, reducing the failure rate and maintenance frequency.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a suspended switching power supply provided in an embodiment of the present disclosure; Figure 2 for Figure 1 A cross-sectional view along section line AA; Figure 3 A cross-sectional view of a suspension plate provided in an embodiment of this disclosure; Figure 4 This is a schematic diagram of the structure of the suspension plate provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the elastic trigger provided in the embodiments of this disclosure; Figure 6 A flowchart illustrating the usage method of the suspended switching power supply provided in the embodiments of this disclosure.

[0022] In the diagram: 100, suspension plate; 110, plug-in block; 120, elastic trigger; 121, sliding tube; 1211, guide slider; 122, rotating tube; 1221, guide groove; 1221a, spiral guide section; 1221b, circular guide section; 123, push rod; 124, first return spring; 130, heat shrink part; 140, strip mounting hole; 150, sliding notch; 160, second return spring; 200, power supply body; 210, base; 211, slot; 212, plug-in hole; 213, stop block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of 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 should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has found that switching power supplies are typically secured using mechanical clips, screws, or simple plug-in structures, such as a plate and slot. When the power supply temperature rises due to prolonged operation or overload, it usually relies on built-in thermal protection circuitry (such as a temperature sensor or fuse) to cut off the power. However, the power supply continues to accumulate heat. The fixed suspension method means that in the event of a fire, the power supply cannot be quickly removed from its original position, potentially igniting nearby equipment.

[0030] Based on the above research, this suspended switching power supply and its usage method utilize the heat shrink component 130 to automatically retract when the temperature of the power supply body 200 rises above its extreme operating temperature. This triggers the retraction of the plug-in block 110 and the pushing action of the elastic trigger component 120, causing the power supply body 200 to pop out of its suspended position. This achieves physical isolation and prevents the power supply body 200 from overheating and igniting surrounding equipment. Simultaneously, the use of a purely mechanical structure avoids the problems of electronic sensor aging or malfunction, reducing the failure rate and maintenance frequency.

[0031] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figure 1 and Figure 2 At least one embodiment provides a suspended switching power supply, including: a suspension plug plate 100; a power supply body 200, which is provided with a base 210, and the base 210 has a slot 211 for inserting the suspension plug plate 100; wherein, plug-in blocks 110 are slidably disposed on both sides of the suspension plug plate 100; the suspension plug plate 100 is also provided with an elastic trigger 120; the elastic trigger 120 is provided with a heat shrink member 130 at the corresponding mating part of the plug-in block 110; when the suspension plug plate 100 is inserted into the slot 211 (along the... Figure 2 (Insert into slot 211 in the direction shown by F). The elastic trigger 120 is squeezed and rotates, thereby pulling the two plug blocks 110 back through the heat shrink member 130. When the push rod of the elastic trigger 120 is squeezed to the limit position, the pull on the plug blocks 110 is released, so that the plug blocks 110 are inserted into the plug holes 212 on both sides of the slot 211. When the temperature of the power supply body 200 rises and causes the heat shrink member 130 to retract, the two plug blocks 110 are pulled back, and the power supply body 200 pops out under the push of the elastic trigger 120 and leaves the hanging position.

[0035] When the heat-shrinkable component 130 automatically retracts when the temperature of the power supply body 200 rises above its extreme operating temperature, it triggers the retraction of the plug-in block 110 and the pushing action of the elastic trigger 120, causing the power supply body 200 to pop out of its suspended position. This achieves physical isolation and prevents the power supply body 200 from overheating and igniting surrounding equipment. Simultaneously, the purely mechanical structure avoids the problems of electronic sensor aging or malfunction, reducing the failure rate and maintenance frequency.

[0036] At the same time, after the power supply unit 200 is ejected, it can be easily detected and sensed by external automatic fire extinguishing equipment, enabling more timely fire extinguishing operations.

[0037] It should be noted that, in order to facilitate the ejection of the power supply unit 200, the connecting cable of the power supply unit 200 has been lengthened to meet the ejection requirement.

[0038] Please see Figure 2 and Figure 3 The suspension plate 100 has a strip-shaped mounting hole 140 in the middle; the elastic trigger 120 is inserted from the end of the suspension plate 100 and extends into the strip-shaped mounting hole 140; the heat shrink member 130 is disposed at the end of the elastic trigger 120 that extends into the strip-shaped mounting hole 140.

[0039] The heat shrinkable component 130 is placed inside the strip mounting hole 140, which reduces the obstruction between the heat shrinkable component 130 and the bottom of the power supply body 200. The heat of the power supply body 200 can be quickly transferred to the heat shrinkable component 130, so that the heat shrinkable component 130 can respond to temperature changes more reliably and thus act in time when overheating.

[0040] It should be noted that the base 210 is made of thermally conductive material.

[0041] Please see Figure 4 and Figure 5 The elastic trigger 120 includes: a sliding tube 121, one end of which is inserted into the end of the suspension plate 100 and extends into the strip-shaped mounting hole 140 of the suspension plate 100; a rotating tube 122, which is sleeved on the sliding tube 121 and disposed in the strip-shaped mounting hole 140, and the rotating tube is rotatably connected to the suspension plate 100; a push rod 123, which is disposed in the sliding tube 121; and a first return spring 124, one end of which is connected to the bottom of the push rod 123 and the other end of which is connected to the bottom wall of the rotating tube 122. The outer wall of the sliding tube 121 is provided with a guide slider 1211; the inner wall of the rotating tube 122 is provided with a guide groove 1221 at the matching position with the guide slider 1211; when the suspension plate 100 is inserted into the slot 211, the elastic trigger 120 is squeezed and rotates, that is, it squeezes the rotating tube 122 and the push rod 123 to compress the first reset spring 124, and at the same time, through the cooperation of the guide groove 1221 and the guide slider 1211, it drives the rotating tube 122 to rotate, so as to pull the two plug blocks 110 back through the heat shrink member 130.

[0042] The cooperation of the sliding tube 121, rotating tube 122, pushing rod 123, first reset spring 124, guide slider 1211 and guide groove 1221 realizes the squeezing rotation and reset of the elastic trigger 120, thereby eliminating the need for electronic components and improving the stability of the thermal response mechanism.

[0043] Specifically, the guide groove 1221 includes a spiral guide section 1221a and a circular guide section 1221b; wherein the spiral guide section 1221a and the circular guide section 1221b are connected; when the guide slider 1211 slides along the spiral guide section 1221a, it drives the rotating tube 122 to rotate, thereby pulling the two plug-in blocks 110 back through the heat shrink member 130; when the guide slider 1211 slides to the circular guide section 1221b, the pull on the plug-in block 110 is released, thereby allowing the plug-in block 110 to be inserted into the plug-in holes 212 on both sides of the slot 211.

[0044] When the guide slider 1211 slides, the spiral guide section 1221a drives the rotating tube 122 to rotate, and pulls the plug-in block 110 back through the heat shrink part 130, ensuring smooth mechanical linkage; when the guide slider 1211 slides to the circular guide section 1221b, the pull on the heat shrink part 130 is released, allowing the plug-in block 110 to be plugged in, making the fit between the power supply body 200 and the suspension plug plate 100 smoother.

[0045] Please continue reading. Figure 4 and Figure 5 The two side walls of the suspension plate 100 are provided with sliding notches 150; the side wall of the plug block 110 is connected to the sliding notch 150 by a second return spring 160; when the push rod of the elastic trigger 120 is squeezed to the limit position, the pull on the plug block 110 is released. At this time, the plug block 110 is reset by the second return spring 160, so that the plug block 110 is plugged into the plug holes 212 on both sides of the slot 211.

[0046] The second reset spring 160 provides an automatic reset force, which immediately pushes the plug block 110 into the plug hole 212 after the pull is released, ensuring that the power supply body 200 is firmly fixed, thereby enhancing the connection reliability and preventing accidental dislodgement due to external disturbances (such as vibration).

[0047] Specifically, the heat-shrinkable component 130 is a liquid crystal elastomer rope; one end of the liquid crystal elastomer rope is connected to the elastic trigger 120, and the other end is connected to the plug block 110; when the suspension plate 100 is inserted into the slot 211, the elastic trigger 120 is squeezed and rotates, thereby pulling the two plug blocks 110 back through the heat-shrinkable component 130, that is: the elastic trigger 120 is squeezed and rotates, thereby driving the liquid crystal elastomer rope to wrap around the elastic trigger 120, thereby pulling the two plug blocks 110 back.

[0048] The thermal deformation temperature of the liquid crystal elastomer rope is T1; the maximum operating temperature of the power supply body 200 is T2; T1 is greater than or equal to T2, and the difference between T1 and T2 is less than 5°C. The design that T1 is greater than T2 ensures that the heat shrink component 130 operates immediately when the power supply reaches its maximum temperature, avoiding temperature overshoot or delay.

[0049] Please see Figure 3 A stop 213 is provided at the top of the slot 211; when the suspension plate 100 is inserted into the slot 211, the stop 213 abuts against the elastic trigger 120 to squeeze the elastic trigger 120, thereby driving the elastic trigger 120 to rotate.

[0050] The stop 213 ensures that the elastic trigger 120 is reliably squeezed when the suspension plate 100 is inserted into the slot 211, thereby initiating the rotation and pulling process and avoiding trigger failure due to insufficient insertion force or misalignment.

[0051] Please see Figure 6 This disclosure also provides a method of using a suspended switching power supply as described above. When the temperature of the power supply body 200 rises above its maximum operating temperature, the heat-shrinkable component 130 automatically retracts, triggering the retraction of the plug-in block 110 and the pushing action of the elastic trigger 120. This causes the power supply body 200 to pop out of its suspended position, achieving physical isolation and preventing overheating of the power supply body 200 from igniting surrounding equipment. Simultaneously, the use of a purely mechanical structure avoids the problems of electronic sensor aging or malfunction, reducing the failure rate and maintenance frequency.

[0052] Specifically, the method of use includes: fixing the hanging plug plate 100 to the side wall of the low-voltage box; inserting the power supply body 200 into the hanging plug plate 100 by external force; when the temperature of the power supply body 200 rises and causes the heat shrink component 130 to retract, pulling the two plug blocks 110 to retract, and the power supply body 200 pops out from the bottom of the low-voltage box under the push of the elastic trigger component 120.

[0053] The heat-shrinkable component 130 is a liquid crystal elastomer rope; one end of the liquid crystal elastomer rope is connected to the elastic trigger 120, and the other end is connected to the plug block 110; when the suspension plate 100 is inserted into the slot 211, the elastic trigger 120 is squeezed and rotates, thereby pulling the two plug blocks 110 back through the heat-shrinkable component 130, that is: the elastic trigger 120 is squeezed and rotates, thereby driving the liquid crystal elastomer rope to wrap around the elastic trigger 120, thereby pulling the two plug blocks 110 back.

[0054] In summary, this invention provides a suspended switching power supply and its usage method. When the temperature of the power supply body 200 rises above its maximum operating temperature, the heat-shrink component 130 automatically retracts, triggering the retraction of the plug-in block 110 and the pushing action of the elastic trigger 120, causing the power supply body 200 to pop out of its suspended position. This achieves physical isolation and prevents the power supply body 200 from overheating and igniting surrounding equipment. Simultaneously, the purely mechanical structure avoids the problems of electronic sensor aging or malfunction, reducing the failure rate and maintenance frequency.

[0055] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0056] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0057] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0058] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0059] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A suspended switching power supply, characterized in that, include: Suspension plate (100); The power supply body (200) is provided with a base (210), and the base (210) has a slot (211) for inserting the suspension plate (100). The suspension plate (100) is slidably provided with plug-in blocks (110) on both sides. The suspension plate (100) is also provided with an elastic trigger (120). The elastic trigger (120) and the corresponding adapter of the plug block (110) are provided with heat shrinkable parts (130). When the suspension plate (100) is inserted into the slot (211), the elastic trigger (120) is squeezed and rotates, thereby pulling the two plug blocks (110) back through the heat shrink part (130). When the push rod (123) of the elastic trigger (120) is squeezed to the limit position, the pull on the plug block (110) is released, thereby allowing the plug block (110) to be inserted into the plug holes (212) on both sides of the slot (211). When the temperature of the power supply body (200) rises, causing the heat shrink element (130) to retract, the two plug blocks (110) are pulled back, and the power supply body (200) pops out under the push of the elastic trigger (120) and leaves the hanging position.

2. The suspended switching power supply as described in claim 1, characterized in that, The suspension plate (100) has a strip-shaped mounting hole (140) in the middle. After the elastic trigger (120) is inserted from the end of the suspension plate (100), it extends into the strip mounting hole (140); The heat shrinkable element (130) is disposed at one end of the elastic trigger element (120) that extends into the strip mounting hole (140).

3. The suspended switching power supply as described in claim 2, characterized in that, The elastic trigger (120) includes: The sliding tube (121) is inserted from one end of the suspension plate (100) and extends into the strip mounting hole (140) of the suspension plate (100); A rotating tube (122) is sleeved on the sliding tube (121), and the rotating tube (122) is disposed in the strip mounting hole (140), and the rotating tube (122) is rotatably connected to the suspension insert (100); A push rod (123) is disposed inside the sliding tube (121); The first return spring (124) has one end connected to the bottom of the push rod (123) and the other end connected to the bottom wall of the rotating tube (122); The outer wall of the sliding tube (121) is provided with a guide slider (1211). The inner wall of the rotating tube (122) is provided with a guide groove (1221) at the fitting point with the guide slider (1211). When the suspension plate (100) is inserted into the slot (211), the elastic trigger (120) is squeezed and rotated, that is, the rotating tube (122) and the push rod (123) are squeezed to compress the first reset spring (124). At the same time, through the cooperation of the guide groove (1221) and the guide slider (1211), the rotating tube (122) is driven to rotate, so as to pull the two plug blocks (110) back through the heat shrink part (130).

4. The suspended switching power supply as described in claim 3, characterized in that, The guide groove (1221) includes a spiral guide section (1221a) and a circular guide section (1221b); The spiral guide section (1221a) is connected to the circular guide section (1221b); When the guide slider (1211) slides along the spiral guide section (1221a), it drives the rotating tube (122) to rotate, thereby pulling the two plug blocks (110) back through the heat shrink part (130); when the guide slider (1211) slides to the circular guide section (1221b), the pull on the plug block (110) is released, thereby allowing the plug block (110) to be inserted into the plug holes (212) on both sides of the slot (211).

5. The suspended switching power supply as described in claim 1, characterized in that, The two side walls of the suspension plate (100) are provided with sliding notches (150); The sidewall of the plug block (110) is connected to the sliding notch (150) by a second return spring (160); When the push rod of the elastic trigger (120) is pressed to the limit position, the pull on the plug block (110) is released. At this time, the plug block (110) is reset by the second reset spring (160), so that the plug block (110) is plugged into the plug holes (212) on both sides of the slot (211).

6. The suspended switching power supply as described in claim 1, characterized in that, The heat shrinkable component (130) is a liquid crystal elastomer rope; One end of the liquid crystal elastomer rope is connected to the elastic trigger (120), and the other end is connected to the plug block (110); When the suspension plate (100) is inserted into the slot (211), the elastic trigger (120) is compressed and rotates, thereby pulling the two plug blocks (110) back through the heat shrink member (130), that is: The elastic trigger (120) is squeezed and rotates, thereby causing the liquid crystal elastomer rope to wrap around the elastic trigger (120), thereby pulling the two plug blocks (110) back.

7. The suspended switching power supply as described in claim 6, characterized in that, The thermal deformation temperature of the liquid crystal elastomer rope is T1; The maximum operating temperature of the power supply body (200) is T2; Where T1 is greater than or equal to T2, and the difference between T1 and T2 is less than 5℃.

8. The suspended switching power supply as described in claim 1, characterized in that, A stop (213) is provided on the top of the slot (211). When the suspension plate (100) is inserted into the slot (211), the stop (213) abuts against the elastic trigger (120) to squeeze the elastic trigger (120), thereby causing the elastic trigger (120) to rotate.

9. A method of using a suspended switching power supply as described in claim 1, characterized in that, The method of use includes: The hanging plug plate (100) is fixed to the side wall of the low-voltage box; The power supply unit (200) is connected to the hanging plug plate (100) by external force; When the temperature of the power supply body (200) rises and the heat shrink part (130) retracts, the two plug blocks (110) are pulled back, and the power supply body (200) is pushed out from the bottom of the weak current box by the elastic trigger (120).

10. The method of using the suspended switching power supply as described in claim 1, characterized in that, The heat shrinkable component (130) is a liquid crystal elastomer rope; One end of the liquid crystal elastomer rope is connected to the elastic trigger (120), and the other end is connected to the plug block (110); When the suspension plate (100) is inserted into the slot (211), the elastic trigger (120) is compressed and rotates, thereby pulling the two plug blocks (110) back through the heat shrink member (130), that is: The elastic trigger (120) is squeezed and rotates, thereby causing the liquid crystal elastomer rope to wrap around the elastic trigger (120), thereby pulling the two plug blocks (110) back.

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