CN222620223U - Connector and power supply device with waterproof cover - Google Patents
Connector and power supply device with waterproof cover Download PDFInfo
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- CN222620223U CN222620223U CN202420672576.1U CN202420672576U CN222620223U CN 222620223 U CN222620223 U CN 222620223U CN 202420672576 U CN202420672576 U CN 202420672576U CN 222620223 U CN222620223 U CN 222620223U
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Abstract
本申请是关于一种带有防水盖的连接器及电源装置，属于电线、电缆辅助连接设备技术领域。本申请的带有防水盖的连接器包括公插、母插和分线器，公插和母插的尾端均连接有电源线，公插和母插的首端可相互配合插接，分线器的入口端通过电源线与母插的尾端连接；分线器的出口端通过电源线与公插的尾端连接；母插上套设有防水套；防水套能够与公插旋紧连接，该防水套在公插与母插相互插接进行工作时，起到对公插、母插的防水保护作用。本连接器还设包括分线器，分线器能够满足单个电源向多个负载供电的应用场景需求；公插和/或母插上连接有与首端相适配的防水盖，该防水盖可防止水或灰尘的侵入，减少连接器的损坏。
The present application is about a connector and a power supply device with a waterproof cover, and belongs to the technical field of auxiliary connection equipment for electric wires and cables. The connector with a waterproof cover of the present application includes a male plug, a female plug and a splitter. The tail ends of the male plug and the female plug are both connected to power cords. The head ends of the male plug and the female plug can be plugged in with each other. The inlet end of the splitter is connected to the tail end of the female plug through the power cord; the outlet end of the splitter is connected to the tail end of the male plug through the power cord; a waterproof cover is provided on the female plug; the waterproof cover can be screwed and connected to the male plug, and the waterproof cover plays a waterproof protection role for the male plug and the female plug when the male plug and the female plug are plugged in and work. The present connector also includes a splitter, which can meet the application scenario requirements of a single power supply supplying power to multiple loads; the male plug and/or the female plug are connected with a waterproof cover adapted to the head end, which can prevent the intrusion of water or dust and reduce damage to the connector.
Description
Technical Field
The utility model relates to the technical field of auxiliary connection equipment for wires and cables, in particular to a connector with a waterproof cover and a power supply device.
Background
The connector of general power transmission equipment, electric products and electric appliance plug pins, called plug, household alternating current power plug and socket, are collectively called connector, and comprise male plug with bar-shaped or copper plate-shaped protrusions, female plug with slots or pits physically inserted, and the like.
Because the power transmission equipment such as street lamps is frequently applied outdoors, and the situation that a single power supply supplies power to a plurality of identical loads usually occurs, the working voltage is unequal, the voltage is extremely low, and the voltage is extremely high and even can reach hundreds of kilovolts, the insulation quality of the connector has key determining factors for the working safety and the service life of the product, and the outdoor environment is high in humidity due to the fact that the connector is frequently subjected to rainy, snowy and other weather, the insulation performance of the wet connector is poor, the situation of electric leakage exists, and the service performance of the product is affected.
Therefore, the connector needs to be protected from water, no matter the connector needs to be protected from water during normal operation or the male plug and the female plug are not matched for connection, as the male plug and the female plug of the connector are generally integrated in two different modules or modules in advance, the two different modules and the modules are not used in the transportation process or the maintenance process or the outdoor wiring process, and in order to prevent invasion of water or dust, the male plug and the female plug are often required to be protected from water so as to prevent water from entering and damage to the modules or modules. The existing industrial waterproof connector has the defects that the waterproof structure part is only provided with a waterproof cover for separately performing waterproof protection on male plug or female plug, the waterproof protection can be well performed on the male plug and female plug in the matched use, the waterproof performance of the existing male plug and female plug is poor, the use requirement under special conditions cannot be met, and inconvenience is brought to the use of people.
Therefore, the connector with the waterproof cover provided by the application has good waterproof performance, comprises the deconcentrator and can meet the application scene requirement that a single power supply supplies power to a plurality of loads.
Disclosure of utility model
In order to overcome the problems in the related art, the application aims to provide a connector with a waterproof cover, which comprises a male plug, a female plug and a deconcentrator, not only can waterproof the male plug and the female plug in a matched use process, but also can independently waterproof the male plug or the female plug in the matched use process, has good waterproof performance, and comprises the deconcentrator, so that the connector with the waterproof cover can meet the requirements of application scenes of supplying power to a plurality of loads by a single power supply.
The first aspect of the application provides a connector with a waterproof cover, comprising a male plug, a female plug and a deconcentrator,
The tail ends of the male plug and the female plug are connected with power lines, and the head ends of the male plug and the female plug can be mutually matched and spliced;
the inlet end of the deconcentrator is connected with the tail end of the female plug through the power line;
The outlet end of the deconcentrator is connected with the tail end of the male plug through the power line;
the female plug is sleeved with a waterproof sleeve, and the waterproof sleeve can be screwed with the male plug;
The male plug and/or the female plug are/is connected with a waterproof cover matched with the head end.
In the preferred technical scheme of the application, the inner peripheral surface of the waterproof sleeve is screwed and matched with the outer peripheral surface of the male plug through a thread structure.
In the preferred technical scheme of the application, a locking limiting ring is sleeved on the outer peripheral surface of the male plug, and the locking limiting ring is used for limiting and locking the waterproof sleeve or the waterproof cover.
In the preferred technical scheme of the application, the waterproof cover is connected to the male plug or the female plug through a connecting rope.
In a preferred technical scheme of the application, the wire divider comprises a wire inlet hole and a plurality of wire outlet holes.
In a preferred technical scheme of the application, the tail ends of the male plug and the female plug are respectively provided with a net tail for protecting a power line connected with the net tail.
In the preferred technical scheme of the application, the wire outlet hole is matched with the power wire, and the inner wall of the wire outlet hole is provided with a power wire sealing ring.
In a preferred technical scheme of the application, the inner peripheral surface of the waterproof cover and the outer peripheral surface of the male plug are in screwing fit through a thread structure.
A second aspect of the present application provides a power supply device, including the connector with a waterproof cover and a power supply box as described above,
The power supply box comprises a circuit board arranged in the power supply box, the circuit board comprises a high-voltage power output end and a low-voltage power output end, and the power supply box is provided with a high-voltage outlet electrically connected to the high-voltage power output end and a low-voltage outlet electrically connected to the low-voltage power output end.
In a preferred embodiment of the present application, the high-voltage outlet is in the form of a three-wire socket, and the low-voltage outlet is in the form of a socket that mates with the connector with the waterproof cover.
The connector with the waterproof cover has the beneficial effects that the connector with the waterproof cover comprises the male plug, the female plug and the deconcentrator, wherein the tail ends of the male plug and the female plug are connected with power lines, the head ends of the male plug and the female plug can be mutually matched and spliced, and the inlet end of the deconcentrator is connected with the tail end of the female plug through the power lines;
The outlet end of the deconcentrator is connected with the tail end of the male plug through a power line, the female plug is sleeved with a waterproof sleeve, the waterproof sleeve can be screwed with the male plug, and the waterproof sleeve works when the male plug and the female plug are mutually inserted. Through rotatory waterproof cover, waterproof cover can be inserted with public the line and screw to the cover is inserted with female the periphery of inserting in public, plays the waterproof guard action that inserts public, female. The connector is further provided with the deconcentrator, and the deconcentrator can meet the application scene requirement that a single power supply supplies power to a plurality of loads. The male plug and/or the female plug are connected with a waterproof cover matched with the head end. The waterproof cover can prevent water or dust from invading and reduce the damage of the connector when the waterproof cover is in the process of male plug, female plug transportation or outdoor wiring and is not used.
Drawings
FIG. 1 is a schematic view of a connector according to an embodiment of the present application;
FIG. 2 is a schematic illustration of female and male mating structures of a connector according to an embodiment of the present application;
Fig. 3 is a schematic diagram of a wire divider of the connector according to the embodiment of the present application with 3 wire holes;
fig. 4 is a schematic diagram of a wire divider of a connector according to an embodiment of the present application with 5 wire holes;
FIG. 5 is a schematic view of the structure of the outlet end of the wire divider according to an embodiment of the present application;
fig. 6 is a schematic structural view of a power supply box according to an embodiment of the present application.
Reference numerals:
1. Female plug, male plug, 3, deconcentrator, 4, power line, 5, waterproof sleeve, 6, waterproof cover, 7, locking limiting ring, 9, connecting rope, 10, net tail, 11, wire outlet hole, 12, power line sealing ring, 13, power box, 131, high voltage outlet, 132, low voltage outlet.
Detailed Description
Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
Example 1
Because the power transmission equipment such as street lamps is frequently applied outdoors, and the situation that a single power supply supplies power to a plurality of identical loads usually occurs, the working voltage is unequal, the voltage is extremely low, and the voltage is extremely high and even can reach hundreds of kilovolts, the insulation quality of the connector has key determining factors for the working safety and the service life of the product, and the outdoor environment is high in humidity due to the fact that the connector is frequently subjected to rainy, snowy and other weather, the insulation performance of the wet connector is poor, the situation of electric leakage exists, and the service performance of the product is affected.
Therefore, the connector needs to be protected from water, no matter the connector needs to be protected from water during normal operation or the male plug and the female plug are not matched for connection, as the male plug and the female plug of the connector are generally integrated in two different modules or modules in advance, the two different modules and the modules are not used in the transportation process or the maintenance process or the outdoor wiring process, and in order to prevent invasion of water or dust, the male plug and the female plug are often required to be protected from water so as to prevent water from entering and damage to the modules or modules. The existing industrial waterproof connector has the defects that the waterproof structure part is only provided with a waterproof cover for separately performing waterproof protection on male plug or female plug, the waterproof protection can be well performed on the male plug and female plug in the matched use, the waterproof performance of the existing male plug and female plug is poor, the use requirement under special conditions cannot be met, and inconvenience is brought to the use of people.
Therefore, the connector with the waterproof cover provided by the application has good waterproof performance, comprises the deconcentrator and can meet the application scene requirement that a single power supply supplies power to a plurality of loads.
The connector according to the embodiment of the present application is described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a connector according to an embodiment of the present application;
FIG. 2 is a schematic illustration of female and male mating structures of a connector according to an embodiment of the present application;
see fig. 1 and 2.
The connector with the waterproof cover 6 comprises a male plug 2, a female plug 1 and a deconcentrator 3. The male plug 2 and the female plug 1 and the wire divider 3 are made of insulating plastic materials. The tail ends of the male plug 2 and the female plug 1 in the embodiment of the application are connected with a power line 4, the head ends of the male plug 2 and the female plug 1 can be mutually matched and spliced, the head end of the male plug 2 in the embodiment of the application refers to one end provided with a pin, and the head end of the female plug 1 refers to one end provided with a jack, namely the tail end corresponding to the head end. The power line 4 connected to the tail ends of the male plug 2 and the female plug 1 in the embodiment of the application can be connected according to actual requirements, and can be a two-core power line 4 or a three-core power line 4, namely when the tail end of the male plug 2 is connected to the three-core power line 4, the tail end of the female plug 1 is connected to the three-core power line 4.
Furthermore, the inlet end of the deconcentrator 3 is connected with the tail end of the female plug 1 through the power line 4, the outlet end of the deconcentrator 3 is connected with the tail end of the male plug 2 through the power line 4, and the deconcentrator 3 can meet the application scene requirement that a single power supply supplies power to a plurality of loads.
Furthermore, a waterproof sleeve 5 is sleeved on the female plug 1 in the embodiment of the application, the waterproof sleeve 5 can be screwed with the male plug 2, and the waterproof sleeve 5 works when the male plug 2 and the female plug 1 are mutually inserted. Through rotatory waterproof cover 5, waterproof cover 5 can screw with public 2 of inserting to the cover is in public 2 of inserting and female 1 periphery of inserting, plays the waterproof guard action to public 2 of inserting, female 1 of inserting. Further, the waterproof jacket 5 is made of an insulating plastic material. The waterproof jacket 5 is shaped to fit the male plug 2 and the female plug 1.
Furthermore, the male plug 2 and/or the female plug 1 of the embodiment of the application are connected with a waterproof cover 6 which is matched with the head end. The waterproof cover 6 is designed into a bottle cap shape in an exemplary manner, the waterproof cover 6 can be covered on the head end of the male plug 2 or the head end of the female plug 1, so that the invasion of water or dust is prevented in the transportation process of the male plug 2 and the female plug 1 or in the outdoor wiring process when the redundant male plug 2 is not used, and the damage of a connector is reduced.
The connector with the waterproof cover has the beneficial effects that the connector with the waterproof cover comprises the male plug, the female plug and the deconcentrator, wherein the tail ends of the male plug and the female plug are connected with the power line, the head ends of the male plug and the female plug can be mutually matched and spliced, and the inlet end of the deconcentrator is connected with the tail end of the female plug through the power line;
The outlet end of the deconcentrator is connected with the tail end of the male plug through a power line, the female plug is sleeved with a waterproof sleeve, the waterproof sleeve can be screwed with the male plug, and the waterproof sleeve works when the male plug and the female plug are mutually inserted. Through rotatory waterproof cover, waterproof cover can be inserted with public the line and screw to the cover is inserted with female the periphery of inserting in public, plays the waterproof guard action that inserts public, female. The connector is further provided with the deconcentrator, and the deconcentrator can meet the application scene requirement that a single power supply supplies power to a plurality of loads. The male plug and/or the female plug are connected with a waterproof cover matched with the head end. The waterproof cover can prevent water or dust from invading and reduce the damage of the connector when the waterproof cover is in the process of male plug, female plug transportation or outdoor wiring and is not used.
Example two
The connector with the waterproof cover according to the first embodiment of the present application has good waterproof performance, and can meet the application scenario requirement of a single power supply for supplying power to a plurality of loads.
The connector according to the embodiment of the present application is described below with reference to the accompanying drawings.
FIG. 2 is a schematic illustration of female and male mating structures of a connector according to an embodiment of the present application;
Fig. 3 is a schematic diagram of a wire divider of the connector according to the embodiment of the present application with 3 wire holes;
fig. 4 is a schematic diagram of a wire divider of a connector according to an embodiment of the present application with 5 wire holes;
fig. 5 is a schematic view of the structure of the outlet end of the wire divider according to an embodiment of the present application.
See fig. 2-5.
The connector comprises a male plug 2, a female plug 1 and a deconcentrator 3 in the first embodiment, wherein the tail ends of the male plug 2 and the female plug 1 are connected with a power line 4, the head ends of the male plug 2 and the female plug 1 can be mutually matched and spliced, the inlet end of the deconcentrator 3 is connected with the tail end of the female plug 1 through the power line 4, the outlet end of the deconcentrator 3 is connected with the tail end of the male plug 2 through the power line 4, a waterproof sleeve 5 is sleeved on the female plug 1, the waterproof sleeve 5 can be screwed and connected with the male plug 2, and a waterproof cover 6 matched with the head end is connected on the male plug 2 or the female plug 1.
Further, the inner peripheral surface of the waterproof sleeve 5 is screwed with the outer peripheral surface of the male plug 2 through a thread structure. Namely, the inner peripheral surface of the waterproof sleeve 5 is provided with a thread structure, the outer peripheral surfaces of the male plug 2 and the female plug 1 are provided with corresponding thread structures, the waterproof sleeve 5 can be sleeved on the female plug 1 in advance, after the male plug 2 and the female plug 1 are mutually plugged and matched, the waterproof sleeve 5 on the female plug 1 is rotated, and the waterproof sleeve 5 can be screwed onto the thread structures of the male plug 2 and the female plug 1, so that stable plugging of the male plug 2 and the female plug 1 is ensured, and waterproof protection effects can be achieved on the male plug 2 and the female plug 1.
Further, the tail end of the thread structure on the outer peripheral surface of the male plug 2 is provided with a locking limiting ring 7, the locking limiting ring 7 plays a role in preventing the waterproof sleeve 5 from excessively rotating, and the waterproof sleeve is screwed to be abutted against the locking limiting ring 7 to stop, so that the waterproof sleeve 5 is just sleeved at the joint of the male plug 2 and the female plug 1, and the waterproof effect is ensured.
Further, the waterproof cover 6 is connected to the male connector 2 or the female connector 1 through a connecting rope 9. The connecting cord 9 of an embodiment of the application may be a tie.
The wire divider 3 comprises a wire inlet hole and a plurality of wire outlet holes 11. That is, an inlet hole is provided at the inlet end, a plurality of wire outlet holes 11 are provided at the outlet end, the number of the wire outlet holes 11 is not limited in the embodiment of the present application, and three or five wire outlet holes 11 may be provided according to actual application. Further, the size of the wire outlet hole 11 should be matched with the power wire 4, the power wire sealing ring 12 is arranged on the inner wall of the wire outlet hole 11, and the power wire sealing ring 12 can prevent moisture from entering the inside of the wire divider 3.
Furthermore, the tail ends of the male plug 2 and the female plug 1 are respectively provided with a net tail 10 for protecting the power line 4 connected with the male plug 2 and the female plug 1, and the net tail 10 not only can protect the power line 4, but also is convenient for a user to take and put the male plug 2 or the female plug 1.
Further, the annular inner wall of the waterproof cover 6 is provided with a thread structure matched with the outer circumferential surface of the male plug 2. Further, the inner diameter of the waterproof cover 6 is consistent with the outer diameter of the waterproof sleeve 5, and the waterproof cover 6 can be sleeved on the waterproof sleeve 5.
The inner peripheral surface of the waterproof cover 6 is screwed with the outer peripheral surface of the male plug 2 by a screw structure.
The waterproof sleeve has the beneficial effects that the design is further invented on the basis of the structure of the first embodiment, the inner peripheral surface of the waterproof sleeve is further limited to be in screwed fit with the outer peripheral surface of the male plug through the threaded structure, stable plug connection of the male plug and the female plug is guaranteed, waterproof protection effects on the male plug and the female plug can be achieved, meanwhile, through the arrangement of the locking limiting ring, the locking limiting ring can prevent the waterproof sleeve from rotating excessively, the waterproof sleeve is stopped when being screwed to abut against the locking limiting ring, and the waterproof sleeve is just sleeved at the joint of the male plug and the female plug, so that the waterproof effect is guaranteed.
Example III
In addition to the connector with a waterproof cover described in the first and second embodiments, the present application also provides a power supply device, and the power supply device of the embodiment of the present application includes the power supply box 13 in addition to the connector with a waterproof cover of the first embodiment. The power supply box 13 is shown in fig. 6.
The power supply box 13 according to the embodiment of the present application includes a power supply box 13 including a circuit board disposed in the power supply box 13, the circuit board including a high voltage power output terminal and a low voltage power output terminal, and a high voltage power output port 131 electrically connected to the high voltage power output terminal and a low voltage power output port 132 electrically connected to the low voltage power output terminal being provided on the power supply box 13.
The high-voltage outlet 131 adopts a three-wire socket type, and the high-voltage outputs power for outdoor electric equipment through the three-wire socket.
The low voltage outlet 132 takes the form of a socket that mates with a connector with a waterproof cover, and the low voltage outlet 132 outputs power to the powered device, illustratively through a socket that mates with a female plug.
Furthermore, the power supply box 13 of the embodiment of the application further comprises a bottom plate and an upper cover, the bottom plate is used for installing the circuit board, the upper cover is covered on the bottom plate, and the bottom plate and the upper cover are matched to provide a waterproof and dustproof installation space for the circuit board.
The upper cover and the bottom plate of the embodiment of the application are made of waterproof materials and are matched with each other to form a space with good waterproof effect. The power supply box 13 of the present application has an IP65 dustproof and waterproof grade. The high-voltage output end and the low-voltage output end are provided, and the high-voltage output end and the low-voltage output end can simultaneously provide high voltage such as 220-240V output and ultra-low safety voltage 48V output, so that different voltage requirements of electric equipment can be met, for example, the high-voltage outlet 131 outputs power to outdoor electric appliances through an European three-wire socket. The low-voltage outlet 132 supplies power to the outdoor power lamp through the connector with the waterproof cover, and provides a safe power utilization environment for the outdoor power lamp. In addition, the power supply box 13 has dustproof and waterproof effects, can be installed indoors or outdoors according to needs, has wide application scenes, is convenient to use, and has popularization and application values.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The connector with the waterproof cover is characterized by comprising a female plug (1), a male plug (2) and a deconcentrator (3);
the tail ends of the male plug (2) and the female plug (1) are connected with a power line (4), and the head ends of the male plug (2) and the female plug (1) can be mutually matched and spliced;
the inlet end of the deconcentrator (3) is connected with the tail end of the female plug (1) through the power line (4);
The outlet end of the deconcentrator (3) is connected with the tail end of the male plug (2) through the power line (4);
A waterproof sleeve (5) is sleeved on the female plug (1), and the waterproof sleeve (5) can be screwed with the male plug (2);
The male plug (2) and/or the female plug (1) are/is connected with a waterproof cover (6) which is matched with the head end.
2. The connector with waterproof cover according to claim 1, wherein:
The inner peripheral surface of the waterproof sleeve (5) is in screwing fit with the outer peripheral surface of the male plug (2) through a thread structure.
3. The connector with waterproof cover according to claim 2, wherein:
The outer peripheral surface of the male plug (2) is sleeved with a locking limiting ring (7), and the locking limiting ring (7) is used for limiting and locking the waterproof sleeve (5) or the waterproof cover (6).
4. The connector with waterproof cover according to claim 2, wherein:
The waterproof cover (6) is connected to the male plug (2) or the female plug (1) through a connecting rope (9).
5. The connector with waterproof cover according to claim 2, wherein:
The deconcentrator (3) comprises a wire inlet hole and a plurality of wire outlet holes (11).
6. The connector with waterproof cover according to claim 2, wherein:
The tail ends of the male plug (2) and the female plug (1) are respectively provided with a net tail (10) for protecting a power line (4) connected with the net tail.
7. The connector with waterproof cover according to claim 5, wherein:
The wire outlet hole (11) is matched with the power wire (4), and a power wire sealing ring (12) is arranged on the inner wall of the wire outlet hole (11).
8. The connector with waterproof cover according to claim 2, wherein:
The inner peripheral surface of the waterproof cover (6) is screwed and matched with the outer peripheral surface of the male plug (2) through a thread structure.
9. A power supply device comprising the connector with waterproof cover and the power supply box (13) according to any one of claims 1 to 8, characterized in that:
The power supply box (13) comprises a circuit board arranged in the power supply box (13), the circuit board comprises a high-voltage power output end and a low-voltage power output end, and the power supply box (13) is provided with a high-voltage outlet (131) electrically connected to the high-voltage power output end and a low-voltage outlet (132) electrically connected to the low-voltage power output end.
10. The power supply device according to claim 9, characterized in that:
the high-pressure outlet (131) takes the form of a three-wire socket, and the low-pressure outlet (132) takes the form of a socket that mates with the connector with a waterproof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420672576.1U CN222620223U (en) | 2024-04-02 | 2024-04-02 | Connector and power supply device with waterproof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420672576.1U CN222620223U (en) | 2024-04-02 | 2024-04-02 | Connector and power supply device with waterproof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222620223U true CN222620223U (en) | 2025-03-14 |
Family
ID=94885036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420672576.1U Active CN222620223U (en) | 2024-04-02 | 2024-04-02 | Connector and power supply device with waterproof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222620223U (en) |
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2024
- 2024-04-02 CN CN202420672576.1U patent/CN222620223U/en active Active
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