Charging cabinet with stable interface

Abstract

The invention relates to the technical field of charging cabinets, in particular to a charging cabinet with a stable interface. The equipment comprises a charging plug and an expanding and fixing mechanism, the charging plug is inserted into the battery socket and is in clearance fit with the battery socket; an embedded groove is formed in the charging plug, and the expanding and fixing mechanism is located in the embedded groove; the expanding and fixing mechanism comprises an expanding unit and an expanding spring; one end of the tensioning spring is connected with the embedded groove, and the other end of the tensioning spring is connected with the tensioning unit. According to the charging cabinet with the stable interface, the charging plug is in clearance fit with the battery socket, along with heating in the charging process, the charging plug generates more obvious expansion compared with the battery socket, and due to the fact that the gap existing between the charging plug and the battery socket can compensate the expansion amount, the charging plug is more stable in charging. Therefore, the charging plug cannot be timely and smoothly pulled out after charging is completed due to thermal expansion. And the expanding and fixing mechanism avoids the situation of unstable connection caused by clearance fit.

Description

Technical Field

[0001] The present invention relates to the technical field of charging cabinets, and in particular to a charging cabinet with a stable interface. Background Art

[0002] A charging cabinet refers to a device that can centrally charge a large number of various types of digital electronic products. It is commonly used in schools, enterprises, training institutions and other places. In order to expand the adaptation of different electronic equipment, the charging cabinet is equipped with a variety of different types of charging plugs. In order to ensure safety, some charging plugs (such as the herringbone plug) have plastic-covered electrical connection ends. In order to prevent the charging plug from detaching, this type of plug is installed with an interference fit with the battery socket.

[0003] However, since the connection point between the charging plug and the battery socket is inside, the expansion amount of the charging plug during the charging process is greater than the expansion amount of the battery socket, making it difficult to pull the charging plug out of the battery socket. Summary of the invention

[0004] The present invention provides a charging cabinet with a stable interface to solve the problem that the charging plug is difficult to be pulled out of the battery socket because the connection point between the charging plug and the battery socket is inside the charging plug and the battery socket expands more than the battery socket during the charging process.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] A charging cabinet with a stable interface:

[0007] Including a charging plug and a strengthening mechanism;

[0008] The charging plug is plugged into the battery socket and fits into the battery socket with clearance; an embedded groove is provided on the charging plug, and the tightening mechanism is located in the embedded groove;

[0009] The tensioning mechanism includes a tensioning unit and a tensioning spring;

[0010] One end of the tension spring is connected to the embedded groove, and the other end is connected to the tension unit, and is configured to apply a thrust to the tension unit so that the tension unit is away from the charging plug and abuts against the inner wall of the battery socket.

[0011] Furthermore, the tensioning unit includes a first metal plate and a limiting bent plate; the first metal plate is connected to the tensioning spring; the limiting bent plate is connected to the first metal plate; when the charging plug is connected to the battery socket, the limiting bent plate abuts against the inner wall of the battery socket.

[0012] Furthermore, it also includes a spacing mechanism; the spacing mechanism includes a movable ring; the movable ring is sleeved on the charging plug and is slidably connected to the charging plug; when the charging plug is inserted into the battery socket, the movable ring abuts against the battery socket and slides relatively with the charging plug, and then the movable ring is sleeved on the tensioning mechanism and presses the limit bend plate into the embedded groove; after the charging plug is inserted into the set depth of the battery socket, the limit bend plate is separated from the movable ring and abuts against the inner wall of the battery socket under the push of the tensioning spring.

[0013] Furthermore, the distance mechanism also includes a sensing element; the sensing element is installed on the charging plug; after the charging plug is inserted into the battery socket to a set depth, the movable ring triggers the sensing element to connect the charging plug to the power source.

[0014] Furthermore, the spacing mechanism also includes a return spring; one end of the return spring is connected to the charging plug, and the other end abuts against the movable sleeve; the return spring is configured to apply a thrust to the movable sleeve, so that after the charging plug is inserted into the battery socket to a set depth, the movable sleeve abuts against the limit bend plate.

[0015] Furthermore, the tensioning unit further comprises a second metal plate; a through hole is formed on the second metal plate; the through hole is sleeved on the limit bending plate and is slidably connected to the limit bending plate; one end of the second metal plate is connected to the embedded groove and the other end is connected to the first metal plate; when the temperature of the charging plug exceeds the threshold, the expansion bending distance of the first metal plate toward the charging plug is greater than the distance that the limit bending plate protrudes from the second metal plate, thereby driving the limit bending plate to retract into the second metal plate, and the limit bending plate is separated from the movable ring.

[0016] Furthermore, the tensioning unit also includes an offset pin; a guide slot is provided on the first metal plate; the offset pin is connected to the second metal plate and can slide along the guide slot; when the first metal plate is deformed by heat, the offset pin moves along the guide slot, thereby driving the limit bending plate to retract.

[0017] Furthermore, the tightening mechanism also includes a guide rod and a pressing cap; the guide rod is connected to the embedded groove, the guide rod is inserted into the pressing cap, and is slidably connected to the pressing cap; the pressing cap abuts against the second metal plate.

[0018] Furthermore, a boss is provided at one end of the guide rod facing away from the embedded groove; the boss abuts against the pressing cap to limit the travel of the pressing cap moving away from the charging plug.

[0019] Furthermore, a guiding inclination angle is provided on the charging plug; the guiding inclination angle is used to guide the charging plug to be inserted into the battery socket.

[0020] The beneficial effects of the interface-stable charging cabinet of the present invention are analyzed as follows:

[0021] The device comprises a charging plug and a tensioning mechanism; the charging plug is plugged into a battery socket and is gap-matched with the battery socket; an embedded groove is provided on the charging plug, and the tensioning mechanism is located in the embedded groove; the tensioning mechanism comprises a tensioning unit and a tensioning spring; one end of the tensioning spring is connected to the embedded groove, and the other end is connected to the tensioning unit, and is configured to apply a thrust to the tensioning unit so that the tensioning unit is away from the charging plug and abuts against the inner wall of the battery socket.

[0022] The charging plug and the battery socket of the interface-stable charging cabinet provided by the present invention are clearance-matched. As the heat is generated during the charging process, the charging plug expands more significantly than the battery socket. Since the gap between the charging plug and the battery socket can compensate for the expansion, the charging plug will not be unable to be pulled out in time and smoothly after charging is completed due to thermal expansion. The expansion mechanism avoids the situation where the clearance fit causes unstable connection.

[0023] Specifically, when the charging plug is inserted into the battery socket, the tension spring is compressed, and then the tension spring pushes the tension unit to abut against the inner wall of the battery socket, so that the charging plug and the battery socket are firmly connected, avoiding the situation where the charging plug and the battery socket are not connected properly due to the gap. When the charging plug expands due to heat, the tension spring is further compressed. When the charging plug is unplugged after charging is completed, it is only necessary to press the tension unit to make the tension spring continue to be compressed. At this time, the charging plug and the tensioning mechanism both maintain a gap with the battery socket, and the charging plug can be unplugged smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a charging plug, a tightening mechanism and a spacing mechanism in an interface-stable charging cabinet provided in an embodiment of the present invention;

[0026] Figure 2 An exploded schematic diagram of the three-dimensional structure of a charging plug, a tightening mechanism and a spacing mechanism in an interface-stable charging cabinet provided in an embodiment of the present invention;

[0027] Figure 3 An exploded schematic diagram of the three-dimensional structure of the strengthening mechanism in the interface-stabilized charging cabinet provided in an embodiment of the present invention;

[0028] Figure 4 An exploded schematic diagram of the three-dimensional structure of a tensioning unit in an interface-stable charging cabinet provided in an embodiment of the present invention;

[0029] Figure 5 An exploded schematic diagram of the three-dimensional structure of the distance mechanism in the interface-stable charging cabinet provided in an embodiment of the present invention.

[0030] icon:

[0031] 100-charging plug; 110-embedded groove; 120-guide inclination; 200-tensioning mechanism; 210-tensioning unit; 211-first metal plate; 201-guide slot hole; 212-limiting bending plate; 213-second metal plate; 214-offset pin; 220-tensioning spring; 230-guide rod; 231-boss; 240-pressing cap; 300-distance mechanism; 310-movable sleeve; 320-sensing element; 330-reset spring. DETAILED DESCRIPTION

[0032] Since the connection point between the charging plug and the battery socket is inside the battery socket, the expansion amount of the charging plug during the charging process is greater than the expansion amount of the battery socket, making it difficult to pull the charging plug out of the battery socket.

[0033] In view of this, the present solution provides an interface-stabilized charging cabinet, including a charging plug 100 and a tightening mechanism 200 .

[0034] The following combination Figure 1-Figure 5 The structure and shape of the interface-stable charging cabinet provided in this embodiment are described in detail:

[0035] The charging plug 100 is plugged into the battery socket and is loosely matched with the battery socket; an embedded groove 110 is provided on the charging plug 100, and a tensioning mechanism 200 is located in the embedded groove 110; the tensioning mechanism 200 includes a tensioning unit 210 and a tensioning spring 220; one end of the tensioning spring 220 is connected to the embedded groove 110, and the other end is connected to the tensioning unit 210, and is configured to apply a thrust to the tensioning unit 210, so that the tensioning unit 210 is away from the charging plug 100 and abuts against the inner wall of the battery socket.

[0036] In this embodiment, the charging plug 100 and the battery socket are clearance-matched. As the heat is generated during the charging process, the charging plug 100 expands more significantly than the battery socket. Since the gap between the charging plug 100 and the battery socket can compensate for the expansion, the charging plug 100 will not be unable to be pulled out in time and smoothly after charging is completed due to thermal expansion. The tightening mechanism 200 avoids the situation where the clearance fit causes an unstable connection.

[0037] Specifically, when the charging plug 100 is inserted into the battery socket, the tension spring 220 is compressed, and then the tension spring 220 pushes the tension unit 210 to abut against the inner wall of the battery socket, so that the charging plug 100 is firmly connected to the battery socket, avoiding the situation where the charging plug 100 and the battery socket are not connected properly due to the gap between them. When the charging plug 100 is heated and expanded, the tension spring 220 is further compressed. When the charging plug 100 is unplugged after charging, it is only necessary to press the tension unit 210 to continue to compress the tension spring 220. At this time, the charging plug 100 and the tensioning mechanism 200 both maintain a gap with the battery socket, and the charging plug 100 can be unplugged smoothly.

[0038] The shape and structure of the tensioning unit 210 are described in more detail:

[0039] The tensioning unit 210 includes a first metal plate 211 and a limiting bent plate 212 ; the first metal plate 211 is connected to the tensioning spring 220 ; the limiting bent plate 212 is connected to the first metal plate 211 ; when the charging plug 100 is connected to the battery socket, the limiting bent plate 212 abuts against the inner wall of the battery socket.

[0040] In this embodiment, the charging plug 100 drives the limit bending plate 212 to move toward the battery socket through the tension spring 220. After the limit bending plate 212 contacts the battery socket, it drives the first metal plate 211 to move toward the charging plug 100 through its own inclined structure. During the movement of the first metal plate 211, the tension spring 220 is compressed. The tension spring 220 deforms elastically, so that the first metal plate 211 has a tendency to move toward the inner wall of the battery socket, thereby pressing the limit bending plate 212 against the inner wall of the battery socket.

[0041] In order to prevent the charging plug 100 from being loosely inserted into the battery socket, the present solution further includes a distance mechanism 300 .

[0042] Specifically, the spacing mechanism 300 includes a movable ring 310. The movable ring 310 is mounted on the charging plug 100 and is slidably connected to the charging plug 100. When the charging plug 100 is inserted into the battery socket, the movable ring 310 abuts against the battery socket and slides relative to the charging plug 100, and then the movable ring 310 is mounted on the tensioning mechanism 200, and the limiting bent plate 212 is pressed into the embedded groove 110. After the charging plug 100 is inserted into the battery socket to a set depth, the limiting bent plate 212 is separated from the movable ring 310 and abuts against the inner wall of the battery socket under the push of the tensioning spring 220.

[0043] In order to further prevent the charging plug 100 from being loosely plugged into the battery socket, the distance mechanism 300 further includes a sensing element 320 .

[0044] Specifically, the sensing element 320 is installed on the charging plug 100 ; after the charging plug 100 is inserted into the battery socket to a set depth, the movable ring 310 triggers the sensing element 320 , so that the charging plug 100 is connected to the power source.

[0045] In order to reset the movable ring 310 when the charging plug 100 is pulled out of the battery socket, the distance mechanism 300 further includes a reset spring 330 .

[0046] Specifically, one end of the return spring 330 is connected to the charging plug 100, and the other end is in contact with the movable ring 310; the return spring 330 is configured to apply thrust to the movable ring 310, and after the charging plug 100 is inserted into the battery socket to a set depth, the movable ring 310 is in contact with the limit bend plate 212.

[0047] In this embodiment, when the charging plug 100 is inserted into the battery socket, the movable ring 310 abuts against the battery socket and slides relative to the charging plug 100, and then the movable ring 310 is sleeved on the tightening mechanism 200, and the limiting bent plate 212 is pressed into the embedded groove 110; after the charging plug 100 is inserted into the battery socket to a set depth, the limiting bent plate 212 is separated from the movable ring 310, and abuts against the inner wall of the battery socket under the push of the tension spring 220, effectively avoiding the risk of false insertion of the charging plug 100 and the battery socket.

[0048] In addition, after the charging plug 100 is inserted into the battery socket to a set depth, the limit bend plate 212 is disengaged from the movable ring 310. At this time, the movable ring 310 squeezes and triggers the sensing element 320. The sensing element 320 controls the charging plug 100 to be connected to the power source, so that the charging plug 100 is energized, further avoiding the risk of charging by virtual insertion of the charging plug 100 and the battery socket; when charging is completed, the personnel drives the limit bend plate 212 toward the charging plug 100 through the first metal plate 211. After the limit bend plate 212 shrinks to the embedded groove 110, the return spring 330 drives the movable ring 310 to move along the charging plug 100. During the movement of the movable ring 310, the sensing element 320 is closed, thereby controlling the charging plug 100 to be disconnected from the power source. At the same time, the reaction force generated by the contact between the limit bend plate 212 and the battery socket assists in pulling out the charging plug 100.

[0049] The strengthening mechanism 200 and the spacing mechanism 300 cooperate to realize the automatic separation of the charging plug 100 from the battery socket when the temperature of the charging plug 100 exceeds the threshold. Specifically:

[0050] The tensioning unit 210 further includes a second metal plate 213; a through hole is formed on the second metal plate 213; the through hole is mounted on the limit bending plate 212 and is slidably connected to the limit bending plate 212; one end of the second metal plate 213 is connected to the embedded groove 110. The other end is connected to the first metal plate 211; when the temperature of the charging plug 100 exceeds the threshold, the expansion bending distance of the first metal plate 211 toward the charging plug 100 is greater than the distance that the limit bending plate 212 protrudes from the second metal plate 213, thereby driving the limit bending plate 212 to retract into the second metal plate 213, and the limit bending plate 212 is separated from the movable ring 310.

[0051] In order to make the first metal plate 211 bend and deform toward the inside of the second metal plate 213 in the thermal expansion state, the tensioning unit 210 further includes an offset pin 214 ; a guide slot 201 is opened on the first metal plate 211 .

[0052] Specifically, the offset pin 214 is connected to the second metal plate 213 and can slide along the guide slot 201 ; when the first metal plate 211 is deformed by heat, the offset pin 214 moves along the guide slot 201 , thereby driving the limit bending plate 212 to retract.

[0053] In this solution, as the charging operation proceeds, the temperature of the charging plug 100 gradually increases, and the first metal plate 211 expands and deforms after being heated. Because the end of the first metal plate 211 away from the offset pin 214 is connected to the second metal plate 213, and the offset pin 214 restricts the movement of the other end of the first metal plate 211 with the cooperation of the guide slot 201, the first metal plate 211 bends and deforms toward the charging plug 100. During this process, the first metal plate 211 moves along the offset pin 214 with the cooperation of the guide slot 201, and the deformed first metal plate 211 drives the limit bend plate 212 to retract.

[0054] When the temperature of the charging plug 100 reaches the threshold, the limit bend plate 212 separates from the movable ring 310, and the limit bend plate 212 no longer abuts against the inner wall of the battery socket, so that the movement of the charging plug 100 out of the battery socket is released, and the return spring 330 transmits a reaction force to the charging plug 100 in cooperation with the movable ring 310 abutting against the battery socket, and the charging plug 100 is separated from the battery socket under the driving of the reaction force; at the same time, the sensing element 320 is turned off during the movement of the charging plug 100, and the sensing element 320 controls the charging plug 100 to be disconnected from the power supply.

[0055] In order to prevent a person from being burned when driving the tensioning unit 210 , the tensioning mechanism 200 further includes a guide rod 230 and a pressing cap 240 .

[0056] Specifically, the guide rod 230 is connected to the embedded groove 110 , and the guide rod 230 is inserted into the pressing cap 240 and is slidably connected to the pressing cap 240 ; the pressing cap 240 is in contact with the second metal plate 213 .

[0057] In order to limit the distance that the limiting bent plate 212 protrudes from the charging plug 100 , a boss 231 is provided at one end of the guide rod 230 facing away from the inner embedding groove 110 .

[0058] Specifically, the boss 231 abuts against the pressing cap 240 to limit the movement of the pressing cap 240 away from the charging plug 100 .

[0059] In this embodiment, when the charging plug 100 needs to be separated from the battery socket, the person drives the pressing cap 240 to move along the guide rod 230, and the pressing cap 240 drives one end of the second metal plate 213 to move toward the charging plug 100, and the second metal plate 213 drives the limiting bent plate 212 to shrink through the first metal plate 211. During this process, the pressing cap 240 separates the second metal plate 213 from the person, avoiding the possibility of the second metal plate 213 causing burns to the person under high temperature conditions; after the charging plug 100 is separated from the battery socket, the tension spring 220 drives the second metal plate 213 to reset through the first metal plate 211, and the second metal plate 213 drives the pressing cap 240 to move along the guide rod 230. After the pressing cap 240 abuts against the boss 231, it limits one end of the second metal plate 213 from continuing to move back to the charging plug 100.

[0060] The shape and structure of the charging plug 100 are described in more detail:

[0061] The charging plug 100 is provided with a guiding angle 120 ; the guiding angle 120 is used to guide the charging plug 100 to be inserted into the battery socket.

[0062] In this solution, when the charging plug 100 is inserted into the battery charging terminal, the guiding inclination angle 120 guides the charging plug 100 to be inserted into the battery socket, thereby enabling a person to insert the charging plug 100 into the battery socket in the narrow environment of the charging cabinet.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging cabinet with a stable interface, characterized in that: It comprises a charging plug (100) and a strengthening mechanism (200); The charging plug (100) is plugged into the battery socket and is gap-matched with the battery socket; The charging plug (100) is provided with an embedded groove (110), and the strengthening mechanism (200) is located in the embedded groove (110); The tensioning mechanism (200) comprises a tensioning unit (210) and a tensioning spring (220); One end of the tension spring (220) is connected to the embedded groove (110), and the other end is connected to the tension unit (210), and is configured to apply a thrust to the tension unit (210) so that the tension unit (210) is away from the charging plug (100) and abuts against the inner wall of the battery socket.

2. The interface-stable charging cabinet according to claim 1, characterized in that: The tensioning unit (210) comprises a first metal plate (211) and a limiting bent plate (212); The first metal plate (211) is connected to the tension spring (220); The limiting bent plate (212) is connected to the first metal plate (211); When the charging plug (100) is connected to the battery socket, the limiting bent plate (212) abuts against the inner wall of the battery socket.

3. The interface-stable charging cabinet according to claim 2, characterized in that: Also includes a distance setting mechanism (300); The distance mechanism (300) comprises a movable ring (310) The movable sleeve (310) is sleeved on the charging plug (100) and is slidably connected to the charging plug (100); When the charging plug (100) is inserted into the battery socket, the movable sleeve (310) abuts against the battery socket and slides relatively with the charging plug (100), and then the movable sleeve (310) is sleeved on the strengthening mechanism (200), and the limiting bent plate (212) is pressed into the embedded groove (110); After the charging plug (100) is inserted into the battery socket to a set depth, the limiting bent plate (212) is separated from the movable sleeve (310) and abuts against the inner wall of the battery socket under the push of the tension spring (220).

4. The interface-stable charging cabinet according to claim 3, characterized in that: The distance-fixing mechanism (300) further includes a sensing element (320); The sensing element (320) is mounted on the charging plug (100); After the charging plug (100) is inserted into the battery socket to a set depth, the movable ring (310) triggers the sensing element (320) to connect the charging plug (100) to a power source.

5. The interface-stable charging cabinet according to claim 4, characterized in that: The distance-fixing mechanism (300) further includes a return spring (330); One end of the return spring (330) is connected to the charging plug (100), and the other end is in contact with the movable sleeve (310); The return spring (330) is configured to apply a thrust to the movable ring (310), so that after the charging plug (100) is inserted to a set depth of the battery socket, the movable ring (310) abuts against the limit bending plate (212).

6. The interface-stable charging cabinet according to claim 5, characterized in that: The tensioning unit (210) further includes a second metal plate (213); The second metal plate (213) is provided with a through hole; The through hole is sleeved on the limiting bent plate (212) and is slidably connected to the limiting bent plate (212); One end of the second metal plate (213) is connected to the embedded groove (110), and the other end is connected to the first metal plate (211); When the temperature of the charging plug (100) exceeds a threshold value, the expansion bending distance of the first metal plate (211) toward the charging plug (100) is greater than the distance that the limiting bending plate (212) protrudes from the second metal plate (213), thereby driving the limiting bending plate (212) to retract into the second metal plate (213), and the limiting bending plate (212) is separated from the movable ring (310).

7. The interface-stable charging cabinet according to claim 6, characterized in that: The tensioning unit (210) further includes an offset pin (214); The first metal plate (211) is provided with a guide slot hole (201); The offset pin (214) is connected to the second metal plate (213) and can slide along the guide slot (201); When the first metal plate (211) is deformed due to heat, the offset pin (214) moves along the guide slot (201), thereby driving the limiting bent plate (212) to retract.

8. The interface-stable charging cabinet according to claim 7, characterized in that: The tightening mechanism (200) further comprises a guide rod (230) and a pressing cap (240); The guide rod (230) is connected to the embedded groove (110), and the guide rod (230) is inserted into the pressing cap (240) and is slidably connected to the pressing cap (240); The pressing cap (240) abuts against the second metal plate (213).

9. The interface-stable charging cabinet according to claim 8, characterized in that: A boss (231) is provided at one end of the guide rod (230) facing away from the embedded groove (110); The boss (231) abuts against the pressing cap (240) to limit the travel of the pressing cap (240) moving away from the charging plug (100).

10. The interface-stable charging cabinet according to claim 9, characterized in that: The charging plug (100) is provided with a guiding inclination angle (120); The guiding inclination angle (120) is used to guide the charging plug (100) to be inserted into a battery socket.

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