Distributed power supply access module

Abstract

The utility model relates to the technical field of power supplies, and discloses a distributed power supply access module, which comprises a box body, an interface box and at least two interface assemblies, the interface box and a plurality of electrical components are positioned in the box body, and the interface assemblies are positioned in one side end surface of the interface box. The connector assembly comprises an outer connector and an inner connector, the outer connector and the inner connector are connected together through a protection spring, the outer connector slides in the inner connector, clamping blocks are installed on the end faces of the two sides of the outer connector, a limiting groove is formed in the end face of the upper side of the outer connector, an electromagnet is fixed in the limiting groove, and the electromagnet is connected with the clamping blocks. According to the utility model, through the two-section arrangement of the external interface and the internal interface, the fuse can be heated and melted under the condition that an external circuit is short-circuited or overloaded, so that the purpose of disconnecting the circuit is achieved, other electric appliance elements in the box body are prevented from being damaged, and the safety of the power supply is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supplies, in particular to a distributed power access module. Background Technique

[0002] A distributed power supply device refers to a small modular and environment-compatible independent power supply with a power of several kilowatts to 50 MW. These power supplies are owned by power departments, power users or third parties to meet specific requirements of the power system and users, such as peak shaving, power supply for remote users or commercial and residential areas, saving investment in power transmission and transformation, and improving power supply reliability.

[0003] The power supply device is connected to external electrical appliances through a power access module. Nowadays, the power access port is a straight plug-in type, and the plug can be directly inserted for use. However, if an external person touches the inside of the interface and makes the interface end connected, it will not only cause the power supply to burn out, but also may cause personal injury. Moreover, the current power interface lacks a protection structure. When a short circuit or overload occurs in the external circuit, the power supply may be directly burned out, causing unnecessary losses. Content of the Utility Model

[0004] To solve the above problems existing in the prior art, the utility model provides a distributed power access module, which has the advantages of protecting the power supply and avoiding burnout.

[0005] To achieve the above purpose of protecting the power supply and avoiding burnout, the utility model provides the following technical solution: It includes a box body, an interface box and an interface component. The interface box and several electrical components are located in the box body, and the interface component is located on one end face of the interface box;

[0006] There are at least two interface components. The interface component includes an outer interface and an inner interface. Among them, the outer interface and the inner interface are connected together by a protection spring. The outer interface slides in the inner interface. Clamping blocks are installed on both end faces of the outer interface. A limiting groove is opened on the upper end face of the outer interface, and an electromagnet is fixed in the limiting groove. A protection plate is also installed inside the outer interface. A fuse is arranged on the protection plate. The protection plate and the electromagnet are connected by a wire. Two plug boards are fixed at the rear of the outer interface, and the plug boards and the protection plate are also connected by a wire;

[0007] Two pins are fixed inside the inner interface, which correspond to the plug boards, and a limiting iron block is fixed on the inner wall of the inner interface through a limiting spring.

[0008] Preferably, a slot is provided on one end face of the outer interface away from the interface box. A conductive rod is fixed at the bottom of the slot. The conductive rod is connected to the protection plate through a wire. A part of the clamping block is located in the slot. The side end face of the outer interface close to the inner interface extends around.

[0009] Preferably, a plug is detachably installed in the outer interface. The plug slides in the slot. Clamping shafts are fixed on both end faces of the plug. A wire is fixed on the end face of the plug away from the interface box.

[0010] Preferably, an inclined notch is provided in the clamping block, and the thickness of the notch is the same as the diameter of the cylinder of the clamping shaft. One side of the clamping block close to the plug is fixed in the outer interface.

[0011] Preferably, the clamping block is elastic, and the bottom of the side of the clamping block away from the outer interface is provided with a rounded corner.

[0012] Preferably, an interface inner cavity is provided inside the interface box. A circuit board is installed inside the interface inner cavity. The inner interface is fixed on the circuit board. A notch is provided at the middle position of the pins in the inner interface, and a protrusion is provided inside the notch.

[0013] Preferably, the end face of the limiting iron block is provided with a chamfered corner.

[0014] Compared with the prior art, the present utility model provides a distributed power access module, which has the following beneficial effects:

[0015] 1. For this distributed power access module, through the two-stage setting of the outer interface and the inner interface, when a short circuit or overload occurs in the external circuit, the fuse can be heated and melted to disconnect the circuit, so as to avoid damaging other electrical components inside the box body, effectively increasing the safety of the power supply.

[0016] 2. For this distributed power access module, through the setting of the clamping block and the clamping shaft, the clamping block abuts against the outer end face of the interface box, preventing external personnel or objects from accidentally touching the outer interface, resulting in the connection of the power supply, thus causing casualties or short-circuit burning of the power supply, and increasing its safety.

[0017] 3. For this distributed power access module, when the electromagnet is energized, it generates magnetism to adsorb the limiting iron block and enter the limiting groove, thereby completing the limiting, so that the outer interface cannot be easily pulled out, avoiding the problem of poor contact caused by the looseness of the socket.

[0018] 4. When a short circuit or overload occurs in the distributed power access module, the external interface will be semi-ejected. On the one hand, the semi-ejected external interface can prevent the circuit from being connected again, resulting in power burnout. On the other hand, it can be used to remind the user that the current interface is damaged and cannot be used. Brief Description of the Drawings

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the power interface module of the present utility model;

[0021] Figure 3 Schematic diagram of the internal structure of the power interface module of the present utility model;

[0022] Figure 4 Of the present utility model Figure 3 Enlarged structure diagram at position A in;

[0023] Figure 5 Schematic diagram of the structure of the clamping block of the present utility model;

[0024] Figure 6 Schematic diagram of the structure of the plug of the present utility model.

[0025] In the figure: 10, interface box; 11, interface inner cavity; 12, circuit board; 20, external interface; 21, slot; 22, conductive rod; 23, clamping block; 24, protection board; 25, fuse; 26, electromagnet; 27, plug board; 30, plug; 31, wire; 32, card shaft; 40, internal interface; 41, pin; 42, limiting iron block; 43, protection spring. Detailed Description of the Preferred Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] As Figures 1-6 shown, it includes a box body, an interface box 10 and an interface component. A number of electrical components including the interface box 10 and a power supply are installed inside the box body. An interface inner cavity 11 is opened inside the interface box 10, and a circuit board 12 is installed inside the interface inner cavity 11. A number of electronic components are installed on the circuit board 12 to respectively control the current connection of different interfaces. The interface component is located in one end face of the interface box 10.

[0028] There are at least two interface components. The interface components include an outer interface 20 and an inner interface 40. The outer interface 20 and the inner interface 40 are connected together by a protective spring 43. The outer interface 20 slides within the inner interface 40. Through a separate two-piece setting, in the case of a short circuit or overload in the external circuit, the interface can be directly disconnected to avoid damaging other electrical components inside the box, effectively increasing the safety of the power supply. On both side end faces of the outer interface 20, there are clamping blocks 23. On the upper side end face of the outer interface 20, there is a limit groove, and an electromagnet 26 is fixed in the limit groove. Inside the outer interface 20, there is also a protection plate 24. On the protection plate 24, there is a fuse 25. The protection plate 24 and the electromagnet 26 are connected by a wire. On the rear side of the outer interface 20, there are also two plug boards 27, and the plug boards 27 and the protection plate 24 are also connected by a wire. When the circuit is connected, the current will pass through the fuse 25 to connect the power supply and the electrical appliance. When there is a short circuit or overload in the external electrical appliance, the current increases sharply, causing the fuse 25 to heat up and melt, achieving the purpose of disconnecting the circuit and greatly increasing its safety.

[0029] On one side end face of the outer interface 20 away from the interface box 10, there is a slot 21. At the bottom of the slot 21, there is a conductive rod 22. The conductive rod 22 and the protection plate 24 are connected by a wire. Part of the clamping block 23 is located within the slot 21. One side end face of the outer interface 20 close to the inner interface 40 extends around. The extended part can prevent the outer interface 20 from being completely pulled out, and can also close the interface of the outer interface 20 to avoid dust and the like from entering.

[0030] A plug 30 is detachably installed inside the outer interface 20. The plug 30 slides within the slot 21. On both side end faces of the plug 30, there are clamping shafts 32. On one side end face of the plug 30 away from the interface box 10, there is a wire 31. An inclined notch is formed in the clamping block 23, and the thickness of the notch is the same as the diameter of the cylinder of the clamping shaft 32. The side of the clamping block 23 close to the plug 30 is fixed inside the outer interface 20. The clamping block 23 is elastic, and the bottom of the side of the clamping block 23 away from the outer interface 20 is rounded. Through the setting of the clamping block 23 and the clamping shaft 32, the clamping block 23 abuts against the outer side end face of the interface box 10, preventing external personnel or objects from accidentally touching the outer interface 20, resulting in the power supply being connected, thus causing casualties or a short circuit and burnout of the power supply, increasing its safety. During the process of inserting the plug 30, the clamping block 23 can be retracted into the outer interface 20, and then the installation of the plug 30 can be completed, making its installation process convenient and fast.

[0031] There are two pins 41 fixed inside the inner interface 40, which correspond to the plug board 27. The inner interface 40 is fixed on the circuit board 12. There is a notch set in the middle position of the pins 41 inside the inner interface 40, and the inside of the notch bulges inward. There is also a limit iron block 42 fixed inside the inner wall of the inner interface 40 through a limit spring. The end face of the limit iron block 42 is set with a chamfered corner. Through the setting of the electromagnet 26 and the limit iron block 42, after the plug board 27 contacts the pins 41, the entire circuit can be connected. At this time, when the current passes through the fuse 25, it will also pass through the protection board 24 to make the electromagnet 26 energized, so that it generates magnetism and adsorbs the limit iron block 42 into the limit groove, and the limit can be completed, so that the outer interface 20 cannot be easily pulled out, avoiding the problem of poor contact caused by the loosening of the socket.

[0032] Working principle: When in use, when the outer interface ********** 20 is pulled out and the latch 23 catches the outer end face of the interface box 10, the protection spring 43 is in a stretched state. When the plug board 27 is inserted into the pins 41, the protection spring 43 is in a compressed state. When power needs to be plugged in, the plug 30 is used to insert into the slot 21. At this time, the latch shaft 32 on the plug 30 enters the notch of the latch 23. Since the notch of the latch 23 is obliquely set, during the process of inserting the plug 30, the latch shaft 32 will squeeze the latch 23 to bend inward towards the inside of the slot 21. For the bent latch 23, the notch at its opening will gradually become smaller, so as to restrict the latch shaft 32 from being pulled out. When the latch 23 completely enters the outer interface 20, the latch 23 disengages from abutting against the outer surface of the interface box 10. At this time, continuing to insert the plug 30 can drive the outer interface 20 to move inward towards the inner interface 40 at the same time, making the protection spring 43 gradually compressed. When the plug board 27 contacts the pins 41, the entire circuit can be connected. At this time, when the current passes through the fuse 25, it will also pass through the protection board 24 to make the electromagnet 26 energized, so that it generates magnetism and continues to push the plug 30 until the electromagnet 26 corresponds to the limit iron block 42. At this time, the electromagnet 26 can adsorb the limit iron block 42 into the limit groove, so as to limit the outer interface 20. At this time, the installation of the plug 30 is completed. At this time, the latch 23 is also restricted inside 49, and the notch at its position is still in a state of becoming smaller, so the plug 30 cannot be easily pulled out at this time.

[0033] It should be noted that there is an unclear part in the original text of item (********** in the English translation). Please check and clarify the original text for a more accurate translation.When it is necessary to unplug the plug 30, the plug 30 can be directly pulled outwards with force. At this time, due to the limitation of the locking block 23, the force is applied to the limiting iron block 42. Since the end face of the limiting iron block 42 is provided with a chamfered corner, when the plug as the chamfered corner and the pulling force of the limiting spring can pull out the limiting iron block 42, and then the socket plate 27 can be directly pulled out, so that the external interface 20 moves away from the internal interface 40 until the locking block 23 is completely exposed. At this time, the external interface 20 is restricted from moving further, and then the plug 30 can move away from the external interface 20 until it is completely pulled out. At this time, the locking block 23 also returns to its original state under the action of its own elastic force, and the locking block 23 abuts against the outer surface of the interface box 10. This is convenient for the next installation.

[0034] When a short circuit or overload occurs, the circuit current increases, causing the fuse 25 to melt. At this time, the circuit is disconnected, and the electromagnet 26 stops being powered, and its magnetic force disappears. The limiting iron block 42 retracts into the internal interface 40 under the pulling force of the limiting spring. At this time, the compressed protection spring 43 will push the external interface 20 to move away from the internal interface 40 until the socket plate 27 is separated from the pin 41, avoiding damage to other electrical components inside the box body, effectively increasing the safety of the power supply. The external interface 20 is semi-ejected. On the one hand, the semi-ejected external interface 20 can prevent the circuit from being connected again, resulting in the power supply being burned out. On the other hand, it can be used to remind the user that the current interface is damaged and cannot be used.

[0035] In summary, for this distributed power access module, through the two-stage setting of the external interface 20 and the internal interface 40, when a short circuit or overload occurs in the external circuit, the fuse 25 can be heated and melted to disconnect the circuit, avoiding damage to other electrical components inside the box body, effectively increasing the safety of the power supply. Through the setting of the locking block 23 and the locking shaft 32, the locking block 23 abuts against the outer end face of the interface box 10, preventing external personnel or objects from accidentally touching the external interface 20, resulting in the power supply being connected and causing personal injury or power short circuit and burnout, thereby increasing its safety. When the electromagnet 26 is powered on, it generates magnetism and adsorbs the limiting iron block 42 into the limiting groove to complete the limiting, so that the external interface 20 cannot be easily pulled out, avoiding problems such as poor contact caused by the loosening of the socket. When a short circuit or overload occurs, the external interface 20 will be semi-ejected. On the one hand, the semi-ejected external interface 20 can prevent the circuit from being connected again, resulting in the power supply being burned out. On the other hand, it can be used to remind the user that the current interface is damaged and cannot be used.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed power access module, comprising a box body, an interface box (10) and an interface component, characterized in that: The interface box (10) and several electrical components are located inside the box, and the interface assembly is located on one end face of the interface box (10); There are at least two interface assemblies. The interface assembly includes an outer interface (20) and an inner interface (40). The outer interface (20) and the inner interface (40) are connected together by a protection spring (43). The outer interface (20) slides inside the inner interface (40). Clamping blocks (23) are installed on both end faces of the outer interface (20). A limiting groove is provided on the upper end face of the outer interface (20), and an electromagnet (26) is fixed in the limiting groove. A protection plate (24) is also installed inside the outer interface (20). A fuse (25) is provided on the protection plate (24). The protection plate (24) and the electromagnet (26) are connected by a wire. Two plug plates (27) are fixed at the rear of the outer interface (20), and the plug plates (27) and the protection plate (24) are also connected by a wire; Two pins (41) are fixed inside the inner interface (40), which correspond to the plug plates (27). A limiting iron block (42) is fixed on the inner wall of the inner interface (40) by a limiting spring.

2. The distributed power access module according to claim 1, characterized in that: A slot (21) is provided on one end face of the outer interface (20) away from the interface box (10). A conductive rod (22) is fixed at the bottom of the slot (21). The conductive rod (22) and the protection plate (24) are connected by a wire. Part of the clamping block (23) is located inside the slot (21). One end face of the outer interface (20) close to the inner interface (40) extends around.

3. The distributed power access module according to claim 2, characterized in that: A plug (30) is detachably installed inside the outer interface (20). The plug (30) slides inside the slot (21). Clamping shafts (32) are fixed on both end faces of the plug (30). A wire (31) is fixed on one end face of the plug (30) away from the interface box (10).

4. A distributed power access module according to claim 3, characterized in that: An inclined notch is provided inside the clamping block (23), and the thickness of the notch is the same as the cylinder diameter of the clamping shaft (32). One side of the clamping block (23) close to the plug (30) is fixed inside the outer interface (20).

5. A distributed power access module according to claim 4, characterized in that: The clamping block (23) is elastic, and the bottom of one side of the clamping block (23) away from the outer interface (20) is rounded.

6. The distributed power access module according to claim 1, characterized in that: An interface cavity (11) is provided inside the interface box (10). A circuit board (12) is installed inside the interface cavity (11). The inner interface (40) is fixed on the circuit board (12). A notch is provided at the middle position of the pin (41) inside the inner interface (40), and a protrusion is provided inside the notch.

7. A distributed power access module according to claim 6, characterized in that: The end face of the limiting iron block (42) is rounded.

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