A motor with a stall and an electronic lock

Abstract

The utility model discloses a motor with plugging and electronic lock, the utility model discloses a motor with plugging is blocked by the blocking piece that is equipped with when eccentric column moves and makes motor shutdown on the motor casing, and the cooperation of blocking piece and eccentric column makes motor plugging in first position or second position to make motor shutdown, and the eccentric column can drive the bolt action of electronic lock when reciprocating between first position and second position, and then realizes the unlocking or locking of electronic lock, adopts this design to make electronic lock more simple, reliable, and the cost is lower, the electronic lock of the utility model drives the bolt sliding in the first lock hole through the eccentric column on the motor, and then realizes the unlocking or locking of lock shell and lock body, has simple structure, transmission reliable and the advantages of low cost.

Description

Technical Field

[0001] This utility model relates to a motor with a stall rotor, and also to an electronic lock that uses a motor with a stall rotor. Background Technology

[0002] In 2022, our company developed an electronic lock cylinder. For details, please refer to the invention patent publication text with application publication number "CN115199151A" entitled "An Electronic Lock Cylinder". In this solution, the electromagnet-driven solution has high energy consumption. Compared with the solution of the motor driving the eccentric shaft to drive the lock tongue, it requires more frequent charging or the use of a larger capacity battery, resulting in poor customer experience and higher costs. Therefore, we are looking for a better solution.

[0003] In existing solutions where a motor drives an eccentric shaft to reciprocate, thereby actuating the latch to unlock / lock, such as the authorized notification number "CN206319719U" titled "Improved Electronic Lock Actuator and its Locking Buckle," the motor is stalled when the eccentric crank contacts the blocking surface of the drive groove on the locking buckle due to the limited internal space of the electronic lock cylinder. The main control board detects the increase in current caused by the stalled motor to determine whether the unlocking or locking action is complete, and then stops the motor to maintain the current state (unlocked or locked). In this solution, it is necessary to ensure that the blocking surface on the locking buckle is not misaligned and the gap does not exceed a certain range; otherwise, the motor cannot be stalled, leading to the failure of the electronic lock.

[0004] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0005] Regarding the existing solution mentioned above, where a motor drives an eccentric shaft to reciprocate, thereby actuating the latch to unlock / lock, it is necessary to ensure that the locking surface on the latch is not misaligned and the gap does not exceed a certain range; otherwise, the motor cannot be stalled, leading to the failure of the electronic lock. The technical solution adopted by this utility model to solve this problem is: a motor with a stall mechanism, comprising: a motor housing and a rotating shaft; an eccentric column eccentric to the rotation center line of the rotating shaft on its end face; and a blocking component on the motor housing to stop the motor when the eccentric column moves.

[0006] As described above, a stalled motor is provided with a first blocking part that blocks the eccentric column when it moves to a first position, thereby stopping the motor. The blocking part is also provided with a second blocking part that blocks the eccentric column when it moves to a second position, thereby stopping the motor.

[0007] This utility model discloses a motor with a stall rotor, wherein the motor is connected to a gearbox that is connected to the motor drive, and a rotating shaft is rotatably connected to the gearbox. The motor can drive the rotating shaft to rotate. An eccentric column is provided on the end face of the rotating shaft, which is eccentric relative to the rotation center line of the rotating shaft. The housing of the gearbox is provided with a blocking component that blocks the eccentric column when it moves, thereby stopping the motor.

[0008] As described above, a stalled motor is provided with a first blocking part that blocks the eccentric column when it moves to a first position, thereby stopping the motor. The blocking part is also provided with a second blocking part that blocks the eccentric column when it moves to a second position, thereby stopping the motor.

[0009] As described above, in a stalled motor, the blocking component is provided with heat dissipation holes.

[0010] This utility model discloses an electronic lock, comprising: a lock shell, a lock body, a bolt, a motor as described above, and a control circuit board for controlling the operation of the motor. The lock body is rotatably connected inside the lock shell, and the lock body has a first lock hole. The lock shell has a second lock hole that can be aligned with the first lock hole. The bolt is slidably connected inside the first lock hole, and the bolt has a drive groove that can cooperate with an eccentric post. The motor is connected inside the lock body. When the eccentric post on the motor moves, it can drive the bolt to slide inside the first lock hole. When the first lock hole and the second lock hole are aligned, the motor can drive the bolt to extend from the first lock hole into the second lock hole to lock the lock shell and the lock body. The motor can also drive the bolt to retract from the second lock hole into the first lock hole to unlock the lock shell and the lock body.

[0011] As described above, an electronic lock has a spring between the lock body and the bolt.

[0012] As described above, in an electronic lock, the tail end of the lock body is connected to a latch plate and screws for locking the latch plate onto the lock body.

[0013] As described above, in an electronic lock, the front end of the lock body is provided with a knob, and the front end of the knob is provided with an unlocking module electrically connected to the control circuit board.

[0014] As described above, an electronic lock has a battery electrically connected to a control circuit board inside the lock body, and the control circuit board has a charging interface for charging.

[0015] The beneficial effects of this utility model are: 1. This utility model provides a blocking component on the motor housing that blocks the eccentric column when it moves, thus stopping the motor. The cooperation between the blocking component and the eccentric column causes the motor to stall in the first or second position, thereby stopping the motor. At the same time, when the eccentric column moves between the first and second positions, it can drive the locking tongue of the electronic lock to move, thereby unlocking or locking the electronic lock. This design makes the electronic lock simpler, more reliable, and less expensive.

[0016] 2. The electronic lock of this utility model uses an eccentric column on the motor to drive the bolt to slide in the first key hole, thereby realizing the unlocking or locking of the lock shell and lock body. It has the advantages of simple structure, reliable transmission and low cost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the motor structure of Embodiment 1 of this utility model; Figure 2 This is a top view schematic diagram of the motor in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram illustrating the principle of the movement of the eccentric column of the motor between the first and second positions in Embodiment 1 of this utility model. Figure 4 This is a schematic diagram of the motor structure in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the electronic lock in this utility model; Figure 6 This is one of the exploded view diagrams of the electronic lock in this utility model; Figure 7 This is a three-dimensional sectional view of the electronic lock in this utility model; Figure 8 This is the second exploded view of the electronic lock in this utility model; Figure 9 This is a front view of the electronic lock in this utility model; Figure 10 for Figure 9 A schematic diagram of the full section along the AA direction; Figure 11 for Figure 9 A schematic diagram of the full section along the BB direction. Detailed Implementation

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1 to 4 As shown, the motor with stall rotor in this utility model has two embodiments, which will now be described separately.

[0020] Example 1: like Figures 1 to 3 As shown in this embodiment, a stalled motor 1 includes a motor housing 11 and a rotating shaft 12. An eccentric column 121, eccentric to the rotation center line of the rotating shaft 12, is provided on the end face of the rotating shaft 12. A blocking member 111 is provided on the motor housing 11 to block the eccentric column 121 when it moves, thus stopping the motor 1. The blocking member 111 has a first blocking portion 1111 that blocks the eccentric column 121 when it moves to a first position, thus stopping the motor 1. The blocking member 111 also has a second blocking portion 1112 that blocks the eccentric column 121 when it moves to a second position, thus stopping the motor 1. This invention provides a blocking component 111 on the motor housing 11, which blocks the eccentric column 121 when it moves, thus stopping the motor 1. The cooperation between the blocking component 111 and the eccentric column 121 causes the motor to stall in the first or second position, thereby stopping the motor. At the same time, when the eccentric column 121 moves between the first and second positions, it can drive the locking tongue of the electronic lock to move, thereby unlocking or locking the electronic lock. This design makes the electronic lock simpler, more reliable, and less expensive.

[0021] Now combine Figure 3 To briefly describe the working principle of a stalled motor according to this invention: assuming the eccentric column is located at... Figure 3 In the right-hand diagram, the eccentric pin drives the bolt to the unlocked state. When the control circuit board receives the locking signal, the motor drives the eccentric pin to rotate to the first position (e.g., Figure 3 As shown in the left-middle figure), the eccentric column can be blocked by a blocking component, preventing the rotating shaft from rotating (entering a stalled state). The control circuit board detects the increased current caused by the stalled motor, causing the motor to stop and enter a locked state. When the control circuit board receives the unlocking electrical signal, it can drive the eccentric column to reverse until the eccentric column rotates to the second position (e.g., Figure 3 As shown in the middle right figure, the eccentric column can be blocked by the blocking component, preventing the rotating shaft from rotating (in a stalled state). The control circuit board stops the motor and puts it in an unlocked state by detecting the increase in current caused by the motor being stalled.

[0022] In this embodiment, heat dissipation holes 1110 are provided on the blocking member 111. This can improve the heat dissipation performance of the motor.

[0023] Example 2: like Figures 1-4As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, a reduction gearbox is connected to the output end of the motor, and the eccentric column is located on the rotating shaft of the reduction gearbox. Specifically, in this embodiment, a motor with a stall rotor is provided. The motor 1 is connected to a reduction gearbox 13 that is driven by the motor 1. A rotating shaft 12 is rotatably connected to the reduction gearbox 13. The motor 1 can drive the rotating shaft 12 to rotate. An eccentric column 121 is provided on the end face of the rotating shaft 12, which is eccentric relative to the rotation center line of the rotating shaft 12. The housing of the reduction gearbox 13 is provided with a blocking member 111 that blocks the eccentric column 121 when it moves, thereby stopping the motor 1. The blocking member 111 is provided with a first blocking part 1111 that blocks the eccentric column 121 when it moves to a first position, thereby stopping the motor 1. The blocking member 111 is provided with a second blocking part 1112 that blocks the eccentric column 121 when it moves to a second position, thereby stopping the motor 1.

[0024] like Figures 1-11 As shown in this embodiment, an electronic lock includes: a lock housing 2, a lock body 3, a bolt 4, a motor 1 as described above, and a control circuit board 5 for controlling the operation of the motor 1. The lock body 3 is rotatably connected inside the lock housing 2. The lock body 3 has a first lock hole 301, and the lock housing 2 has a second lock hole 201 that can be aligned with the first lock hole 301. The bolt 4 is slidably connected inside the first lock hole 301, and the bolt 4 has a mechanism that can cooperate with an eccentric column 121. The drive slot 401 houses the motor 1, which is connected within the lock body 3. When the eccentric column 121 on the motor 1 moves, it drives the bolt 4 to slide within the first lock hole 301. When the first lock hole 301 and the second lock hole 201 are aligned, the motor 1 drives the bolt 4 from the first lock hole 301 into the second lock hole 201 to lock the lock housing 2 and the lock body 3. The motor 1 can also drive the bolt 4 to retract from the second lock hole 201 back into the first lock hole 301 to unlock the lock housing 2 and the lock body 3. This electronic lock utilizes the eccentric column on the motor 1 to drive the bolt 4 to slide within the first lock hole 301, thereby unlocking or locking the lock housing 2 and the lock body 3. It has the advantages of simple structure, reliable transmission, and low cost.

[0025] In order to ensure smooth return of the bolt and reduce the gap, a spring 6 is provided between the lock body 3 and the bolt 4.

[0026] In this embodiment, the tail of the lock body 3 is connected to a latch plate 7 and a screw 71 for locking the latch plate 7 onto the lock body 3. When the lock body is installed on the door, the latch plate rotates with the lock body, and the latch plate cooperates with the door frame to unlock or lock.

[0027] In this embodiment, the front end of the lock body 3 is provided with a knob part 31, which facilitates the rotation of the lock body. An unlocking module electrically connected to the control circuit board 5 is provided at the front end of the knob part 31. The unlocking module can be an electronic unlocking module such as a fingerprint unlocking module, a password unlocking module, an IC card unlocking module, a remote control unlocking module, or a Bluetooth APP unlocking module.

[0028] In this embodiment, a battery 8 electrically connected to the control circuit board 5 is provided inside the lock body 3; at the same time, in order to facilitate charging, the control circuit board 5 is provided with a charging interface 51 for charging.

[0029] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A stalled motor, wherein the motor (1) comprises: The motor housing (11) and the rotating shaft (12) are provided with an eccentric column (121) on the end face of the rotating shaft (12) that is eccentric relative to the rotation center line of the rotating shaft (12). The characteristic is that the motor housing (11) is provided with a blocking member (111) that blocks the eccentric column (121) when it moves, thereby stopping the motor (1).

2. A motor with a stall rotor according to claim 1, characterized in that, The blocking member (111) is provided with a first blocking part (1111) that blocks the eccentric column (121) when it moves to the first position, thereby stopping the motor (1). The blocking member (111) is provided with a second blocking part (1112) that blocks the eccentric column (121) when it moves to the second position, thereby stopping the motor (1).

3. A motor with a stall mechanism, wherein a gearbox (13) is connected to the motor (1) for transmission, a rotating shaft (12) is rotatably connected to the gearbox (13), the motor (1) can drive the rotating shaft (12) to rotate, and an eccentric column (121) is provided on the end face of the rotating shaft (12) eccentric to the rotation center line of the rotating shaft (12), characterized in that: The gearbox (13) is provided with a blocking component (111) on its housing to block the eccentric column (121) when it moves, thereby stopping the motor (1).

4. A motor with a stall rotor according to claim 3, characterized in that, The blocking member (111) is provided with a first blocking part (1111) that blocks the eccentric column (121) when it moves to the first position, thereby stopping the motor (1). The blocking member (111) is provided with a second blocking part (1112) that blocks the eccentric column (121) when it moves to the second position, thereby stopping the motor (1).

5. A motor with a stall rotor according to claim 3, characterized in that, The blocking member (111) is provided with heat dissipation holes (1110).

6. An electronic lock, characterized in that, The electronic lock comprises: a lock shell (2), a lock body (3), a bolt (4), a motor (1) as described in any one of claims 1-5, and a control circuit board (5) for controlling the operation of the motor (1). The lock body (3) is rotatably connected inside the lock shell (2). The lock body (3) is provided with a first lock hole (301). The lock shell (2) is provided with a second lock hole (201) that can be aligned with the first lock hole (301). The bolt (4) is slidably connected inside the first lock hole (301). The bolt (4) is provided with a drive groove (40) that can be used with an eccentric column (121). 1) The motor (1) is connected inside the lock body (3). When the eccentric column (121) on the motor (1) moves, it can drive the bolt (4) to slide in the first lock hole (301). When the first lock hole (301) and the second lock hole (201) are aligned, the motor (1) can drive the bolt (4) to extend from the first lock hole (301) into the second lock hole (201) to lock the lock shell (2) and the lock body (3). The motor (1) can also drive the bolt (4) to retract from the second lock hole (201) back into the first lock hole (301) to unlock the lock shell (2) and the lock body (3).

7. An electronic lock according to claim 6, characterized in that, A spring (6) is provided between the lock body (3) and the lock tongue (4).

8. An electronic lock according to claim 6, characterized in that, The tail of the lock body (3) is connected to a latch plate (7) and a screw (71) for locking the latch plate (7) onto the lock body (3).

9. An electronic lock according to claim 6, characterized in that, The front end of the lock body (3) is provided with a knob part (31), and the front end of the knob part (31) is provided with an unlocking module that is electrically connected to the control circuit board (5).

10. An electronic lock according to claim 6, characterized in that, The lock body (3) is equipped with a battery (8) that is electrically connected to the control circuit board (5), and the control circuit board (5) is equipped with a charging interface (51) for charging.

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