Self-checking adapter

Abstract

The utility model relates to the technical field of adapters, and discloses a self-checking adapter, which comprises an adapter body and a pressing buckle arranged on the outer side of the adapter body, a telescopic piece with a telescopic end, a main control board electrically connected with the control end of the telescopic piece and a power supply electrically connected with the telescopic piece and the main control board are arranged in the adapter body, and the telescopic end of the telescopic piece can be driven by the main control board to partially stretch into the lower portion of the pressing buckle so as to prevent the pressing buckle from being unlocked; a first inductive switch used for monitoring the telescopic state of the telescopic end of the telescopic piece in real time is further arranged in the adapter body, and the output end of the first inductive switch is electrically connected to the main control board. According to the utility model, the actual state of the telescopic member can be self-detected through the main control board and the first inductive switch so as to obtain the real condition of the telescopic member, thereby preventing the safety problem possibly caused by the continuous use of the adapter under the fault condition.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, and more specifically to a self-checking adapter. Background Art

[0002] In some adapters, in order to prevent hot plugging and unplugging, an electromagnetic telescopic rod is set under the push buckle. During normal charging of the adapter, based on the power supply and control of the built-in power supply and control module of the adapter, the rod body of the electromagnetic telescopic rod extends from under the pressing part of the push buckle, thereby preventing the connection between the adapter and the charging gun / charging base from being released. For self-protection, a temperature sensor and a circuit breaker connecting the power terminal / signal terminal can also be set in the adapter. When the temperature sensor senses that the temperature is too high during charging, the control module cuts off the connection of the power terminal / signal terminal through the circuit breaker, so as to make a protective action response to cut off the charging operation, thereby achieving the protection purpose.

[0003] Before connecting the charger and the charging gun, that is, in the initial state and in the charging state, the above-mentioned adapter cannot self-check the actual state of the electromagnetic telescopic rod, that is, the control system cannot know the actual displacement state of the electromagnetic telescopic rod. If the electromagnetic telescopic rod is damaged or moves abnormally, it will not be possible to detect that the adapter itself has failed and respond with protective actions such as cutting off the circuit breaker connected to the power terminal / signal terminal. Continuing to use may cause safety problems. Utility Model Content

[0004] The utility model provides a self-checking adapter to solve the safety problem that may be caused by the electromagnetic telescopic rod in the existing adapter not having the telescopic state judgment function.

[0005] The utility model provides a self-checking adapter, comprising an adapter body and a push buckle arranged on the outside of the adapter body, wherein a telescopic member having a telescopic end, a main control board electrically connected to the control end of the telescopic member, and a power supply electrically connected to the telescopic member and the main control board are arranged inside the adapter body, and the telescopic end of the telescopic member can be partially extended under the push buckle under the drive of the main control board to prevent the push buckle from being unlocked; a first induction switch for real-time monitoring of the telescopic state of the telescopic end of the telescopic member is also arranged inside the adapter body, and the output end of the first induction switch is electrically connected to the main control board.

[0006] Optionally, a signal display module and a second induction switch are further provided in the adapter body, and the signal display module, the second induction switch and the power supply are connected in series.

[0007] Optionally, the signal display module is one or more of a display screen, a light emitting diode or a buzzer.

[0008] Optionally, an observation window for observing the signal display module is provided on the adapter body, and a light-transmitting block is arranged at the observation window.

[0009] Optionally, the telescopic member is a push-pull electromagnet having a telescopic end that can partially extend under the press buckle and a positioning end that moves synchronously with the telescopic end, and the first induction switch and the second induction switch are both located on the moving path of the positioning end.

[0010] Optionally, the first induction switch and the second induction switch are relatively arranged on the housing of the push-pull electromagnet. When the telescopic end partially extends under the press buckle, the positioning end simultaneously triggers the first induction switch and the second induction switch, so that the first induction switch transmits the telescopic state of the telescopic end of the telescopic part to the main control board and the second induction switch turns on the signal display module.

[0011] Optionally, both the first induction switch and the second induction switch are push-type induction switches, and the positioning end abuts against the first induction switch and the second induction switch to achieve triggering.

[0012] Optionally, a through hole is provided on the adapter body for the telescopic end of the telescopic member to extend out, and a sealing ring is sleeved on the outer side of the telescopic end of the telescopic member.

[0013] Optionally, a sealing groove is provided at the telescopic end of the telescopic member along the circumferential direction, and the sealing ring is installed in the sealing groove.

[0014] The utility model has the following beneficial effects: the first induction switch provided in the utility model can monitor the telescopic state of the telescopic end of the telescopic member in real time, and transmit the monitoring signal to the main control board, so that the adapter can self-check the actual state of the telescopic member through the main control board and the first induction switch, obtain the real condition of the telescopic member, and make relevant protective action responses in time when the telescopic rod has an initial state error, cannot move or moves abnormally due to a fault, so as to prevent the adapter from continuing to be used in a faulty state and possibly causing safety problems.

[0015] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1 is a schematic diagram of the self-test adapter of this embodiment;

[0018] Figure 2A partial cross-sectional view of the self-testing adapter of this embodiment at the telescopic member;

[0019] Figure 3 It is an enlarged schematic diagram of the structure of the telescopic member;

[0020] Figure 4 This is a schematic block diagram of the circuit application of the self-test adapter of this embodiment.

[0021] The following are marked in the figure:

[0022] 1. Adapter body; 11. Through hole; 12. Observation window;

[0023] 2. Press buckle; 21. Pressing part;

[0024] 3. Telescopic member; 31. Telescopic end; 32. Positioning end; 33. Sealing ring;

[0025] 4. The first induction switch;

[0026] 5. Second induction switch;

[0027] 6. Light-emitting diode;

[0028] 7. Light-transmitting block;

[0029] 8. Main control board. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] like Figure 1-4As shown, a self-test adapter provided in this embodiment includes an adapter body 1 and a push buckle 2 arranged on the outside of the adapter body 1, a telescopic member 3 with a telescopic end 31, a main control board 8 electrically connected to the control end of the telescopic member 3, and a power supply electrically connected to the telescopic member 3 and the main control board 8 are arranged inside the adapter body 1, and the telescopic end 31 of the telescopic member 3 can be partially extended under the push buckle 2 under the drive of the main control board 8, and the telescopic end 31 specifically extends under the pressing part 21 of the push buckle 2 to prevent the push buckle 2 from being unlocked; a first induction switch 4 for real-time monitoring of the telescopic state of the telescopic end 31 of the telescopic member 3 is also arranged inside the adapter body 1, and the output end of the first induction switch 4 is electrically connected to the main control board 8.

[0035] The first induction switch 4 can monitor the telescopic state of the telescopic end 31 of the telescopic member 3 in real time, and transmit the monitoring signal to the main control board 8, so that the adapter can self-check the actual state of the telescopic member 3 through the main control board 8 and the first induction switch 4, obtain the real condition of the telescopic member 3, and make relevant protective action responses in time when the telescopic rod has an initial state error, cannot move or moves abnormally due to a fault, so as to prevent the adapter from continuing to be used in a faulty state and causing possible safety problems.

[0036] Furthermore, in order to enable the user to synchronously and intuitively perceive or observe the telescopic state of the telescopic end 31 of the telescopic member 3, so as to facilitate the user to understand the condition of the adapter and provide double protection for judging the telescopic state of the telescopic end 31 of the telescopic member 3, in this embodiment, a signal display module and a second induction switch 5 are also provided in the adapter body 1, and the signal display module, the second induction switch 5 and the power supply are connected in series.

[0037] Furthermore, the signal display module is one or more of a display screen, a light emitting diode 6 or a buzzer. In this embodiment, a light emitting diode 6 emitting red light is used as the signal display module, and the light emitting diode 6 is fixed on the second induction switch 5 for easy installation and space saving.

[0038] Furthermore, an observation window 12 for observing the signal display module is provided on the adapter body 1, and a light-transmitting block 7 is arranged at the observation window 12. In the present embodiment, considering the protection of the signal display module, i.e., the light-emitting diode 6, the observation window 12 and the light-transmitting block 7 are bonded and sealed by glue. In addition, in order to improve the recognition, the light-transmitting block 7 is made of a red transparent resin material. Furthermore, in order to improve the diffusion degree of the light emitted by the light-emitting diode 6, the light-transmitting block 7 is a truncated cone-shaped structure with a larger outer side and a smaller inner side, and the observation window 12 is adapted in shape to the light-transmitting block 7.

[0039] Furthermore, in order to facilitate the arrangement of the first induction switch 4 and the second induction switch 5, in the present embodiment, the telescopic member 3 is a push-pull electromagnet, which has a telescopic end 31 that can be partially extended into the bottom of the pressing buckle 2 and a positioning end 32 that moves synchronously with the telescopic end 31, and the first induction switch 4 and the second induction switch 5 are both located on the moving path of the positioning end 32; specifically, the push-pull electromagnet adopts the existing push-pull electromagnet, including a shell and a telescopic rod axially movably installed in the shell, both ends of the telescopic rod extend out of the shell, one end of the telescopic rod constitutes the above-mentioned telescopic end 31, and the other end constitutes the above-mentioned positioning end 32.

[0040] In other embodiments, the telescopic member may also adopt an existing electric push rod with one end telescopic. In this case, the first induction switch and the second induction switch may perform contact position sensing on the telescopic end of the electric push rod, that is, the first induction switch and the second induction switch may be set on the shell at a position corresponding to the telescopic end of the electric push rod after it is extended, and the first induction switch and the second induction switch may be triggered when the telescopic end of the electric push rod is extended; or, the first induction switch and the second induction switch may also perform non-contact position sensing on the telescopic end of the electric push rod. In this case, the first induction switch and the second induction switch may adopt conventional position sensors such as inductive proximity sensors, and the first induction switch and the second induction switch may be set on the shell at a position corresponding to the telescopic end of the electric push rod after it is extended. After the telescopic end of the electric push rod made of metal is extended, it approaches the inductive proximity sensor, causing the switch signal output by the inductive proximity sensor to change, thereby enabling the main control board to learn whether the telescopic end of the electric push rod is extended.

[0041] Furthermore, in order to ensure that the first induction switch 4 and the second induction switch 5 can be triggered synchronously by the positioning end 32, in the present embodiment, the first induction switch 4 and the second induction switch 5 are relatively arranged on the housing of the push-pull electromagnet, and when the telescopic end 31 partially extends under the pressing buckle 2, the positioning end 32 triggers the first induction switch 4 and the second induction switch 5 at the same time, so that the first induction switch 4 transmits the telescopic state of the telescopic end 31 of the telescopic member 3 to the main control board 8 and the second induction switch 5 turns on the signal display module.

[0042] In this embodiment, the first induction switch 4 and the second induction switch 5 are both push-type induction switches, and the positioning end 32 abuts against the first induction switch 4 and the second induction switch 5 to achieve triggering. In addition, in order to ensure that the positioning end 32 can effectively abut against the first induction switch 4 and the second induction switch 5 at the same time, the positioning end 32 is a disc structure extending along the radial plane.

[0043] Furthermore, in order to enable the main control board 8 to obtain the status of the first sensing switch 4, so that the maintenance personnel can determine whether the fault is in the first sensing switch 4 or the telescopic member 3 when the adapter self-test fails, the first sensing switch 4 adopts a single-pole double-throw type push-type sensing switch, that is, a single-pole double-throw microswitch in the prior art. The single-pole double-throw microswitch has a signal input circuit and two signal output circuits corresponding to two trigger states respectively. The signal input circuit and the signal output circuit are both electrically connected to the main control board 8. When the single-pole double-throw microswitch is triggered, the signal is input from the signal input circuit and returned to the main control board 8 from a connected signal output circuit. When the single-pole double-throw microswitch is not triggered, the signal is input from the signal input circuit and returned to the main control board 8 from another connected signal output circuit. When the adapter self-detects a fault and makes a related protective action response, when the maintenance personnel observe and detect the telescopic part 3 and the signal display module and find no problems, it can be determined that the first sensor switch 4 has a fault, that is, the first sensor switch 4 cannot be triggered, and one of the signal output circuits that is directly connected is in an untriggered state, or both signal output circuits are not connected, resulting in the main control board 8 being unable to obtain the signal when the telescopic end 31 of the telescopic part 3 extends into the bottom of the press buckle 2, thereby making a related protective action response. Therefore, the first sensor switch 4 adopts a single-pole double-throw type push-type sensor switch to help maintenance personnel determine that the first sensor switch 4 has a fault.

[0044] Furthermore, considering the sealing performance, in this embodiment, a through hole 11 is provided on the adapter body 1 for the telescopic end 31 of the telescopic member 3 to extend out, and a sealing ring 33 is sleeved on the outer side of the telescopic end 31 of the telescopic member 3 .

[0045] Furthermore, a sealing groove is formed at the telescopic end 31 of the telescopic member 3 along the circumferential direction, and a sealing ring 33 is installed in the sealing groove.

[0046] The power supply used above can be a battery pre-installed in the adapter body 1. The battery can be detachably installed in the adapter body 1. The battery itself can also be a rechargeable battery. The adapter can be equipped with a charging interface. The power supply can also be provided with a power switch. When the adapter is not in use, the power supply can be cut off to save power.

[0047] In specific use, the self-check of the self-checking adapter can occur in two stages: before the charging gun and the charging seat are connected, and during charging after the charging gun and the charging seat are connected. First, before the charging gun and the charging seat are connected, the main control board 8 can check the actual state of the telescopic member 3 according to the preset initial state of the telescopic member 3 after obtaining power supply. If the telescopic member 3 should be in the retracted state according to the preset in the initial state, and the signal received by the main control board 8 is that the telescopic member 3 is in the extended state, the main control board 8 can start the protective action reaction such as controlling the preset circuit breaker to cut off the connection of the power terminal / signal terminal, so as to prevent the continuation of the charging operation, so as to remind the user that the adapter has a fault and cannot perform the charging operation; secondly, when the charging gun and the charging seat have been connected and charging has started, the main control board 8 controls the telescopic member 3 to extend. At this time, the main control board 8 checks the actual state of the telescopic member 3 again. If the signal received by the main control board 8 is that the telescopic member 3 is not in the extended state, the main control board 8 can start the protective action reaction such as controlling the preset circuit breaker to cut off the connection of the power terminal / signal terminal, so as to cut off the charging operation to remind the user that the fault has occurred.

[0048] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A self-testing adapter, comprising an adapter body and a pressing buckle arranged on the outside of the adapter body, characterized in that: The interior of the adapter body is provided with a telescopic member with a telescopic end, a main control board electrically connected to the control end of the telescopic member, and a power supply electrically connected to the telescopic member and the main control board. The telescopic end of the telescopic member can be partially extended under the push buckle under the drive of the main control board to prevent the push buckle from being unlocked; the interior of the adapter body is also provided with a first induction switch for real-time monitoring of the telescopic state of the telescopic end of the telescopic member, and the output end of the first induction switch is electrically connected to the main control board.

2. A self-testing adapter according to claim 1, characterized in that: The adapter body is also provided with a signal display module and a second induction switch, and the signal display module, the second induction switch and the power supply are connected in series.

3. A self-testing adapter according to claim 2, characterized in that: The signal display module is one or more of a display screen, a light emitting diode or a buzzer.

4. A self-testing adapter according to claim 2, characterized in that: The adapter body is provided with an observation window for observing the signal display module, and a light-transmitting block is arranged at the observation window.

5. A self-testing adapter according to claim 2, characterized in that: The telescopic member is a push-pull electromagnet having a telescopic end that can partially extend under the pressing buckle and a positioning end that moves synchronously with the telescopic end, and the first induction switch and the second induction switch are both located on the moving path of the positioning end.

6. A self-testing adapter according to claim 5, characterized in that: The first induction switch and the second induction switch are relatively arranged on the housing of the push-pull electromagnet. When the telescopic end part extends into the bottom of the press buckle, the positioning end triggers the first induction switch and the second induction switch at the same time, so that the first induction switch transmits the telescopic state of the telescopic end of the telescopic part to the main control board and the second induction switch turns on the signal display module.

7. A self-testing adapter according to claim 6, characterized in that: The first induction switch and the second induction switch are both press-type induction switches, and the positioning end abuts against the first induction switch and the second induction switch to achieve triggering.

8. The self-testing adapter according to claim 1, characterized in that: The adapter body is provided with a through hole for the telescopic end of the telescopic member to extend out, and a sealing ring is sleeved on the outer side of the telescopic end of the telescopic member.

9. A self-testing adapter according to claim 8, characterized in that: A sealing groove is provided at the telescopic end of the telescopic member along the circumferential direction, and the sealing ring is installed in the sealing groove.

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